CN108722126B - Desulfurization defogging equipment - Google Patents
Desulfurization defogging equipment Download PDFInfo
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- CN108722126B CN108722126B CN201810890726.5A CN201810890726A CN108722126B CN 108722126 B CN108722126 B CN 108722126B CN 201810890726 A CN201810890726 A CN 201810890726A CN 108722126 B CN108722126 B CN 108722126B
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- China
- Prior art keywords
- desulfurization
- demisting
- screen
- waste gas
- exhaust gas
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- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 156
- 230000023556 desulfurization Effects 0.000 title claims abstract description 156
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 264
- 239000007789 gas Substances 0.000 claims abstract description 120
- 239000002912 waste gas Substances 0.000 claims abstract description 85
- 239000007921 spray Substances 0.000 claims abstract description 60
- 238000000746 purification Methods 0.000 claims abstract description 17
- 238000001816 cooling Methods 0.000 claims abstract description 7
- 230000000903 blocking effect Effects 0.000 claims description 37
- 239000002184 metal Substances 0.000 claims description 27
- 229910052751 metal Inorganic materials 0.000 claims description 27
- 238000009954 braiding Methods 0.000 claims description 11
- 238000009434 installation Methods 0.000 claims description 10
- 239000003595 mist Substances 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 3
- 239000003546 flue gas Substances 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims 2
- 230000000694 effects Effects 0.000 abstract description 26
- 239000000779 smoke Substances 0.000 abstract description 8
- 238000004140 cleaning Methods 0.000 description 66
- 238000001914 filtration Methods 0.000 description 15
- 238000005192 partition Methods 0.000 description 15
- 230000000712 assembly Effects 0.000 description 9
- 238000000429 assembly Methods 0.000 description 9
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 6
- 238000010926 purge Methods 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 239000013618 particulate matter Substances 0.000 description 5
- 230000003014 reinforcing effect Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000005728 strengthening Methods 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
- 230000003009 desulfurizing effect Effects 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 229910052717 sulfur Inorganic materials 0.000 description 3
- 239000011593 sulfur Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- -1 meanwhile Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
- B01D46/12—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces in multiple arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/4263—Means for active heating or cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
- B01D46/62—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series
- B01D46/64—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series arranged concentrically or coaxially
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/1456—Removing acid components
- B01D53/1481—Removing sulfur dioxide or sulfur trioxide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
- B01D53/185—Liquid distributors
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Treating Waste Gases (AREA)
- Gas Separation By Absorption (AREA)
Abstract
The invention provides desulfurization and demisting equipment, which comprises an exhaust gas desulfurization structure and an exhaust gas demisting structure; the waste gas desulfurization structure comprises a desulfurization shell, wherein at least one desulfurization component is arranged in the desulfurization shell, the desulfurization component comprises a high-pressure water pipe and a screen component arranged opposite to the high-pressure water pipe, and water sprays from the high-pressure water pipe impact the screen component to generate a water curtain and water spray; the waste gas defogging structure comprises a defogging shell and at least one defogging component arranged in the defogging shell, and the front surface of the defogging component is arranged in the direction facing the flow direction of the waste gas; waste gas passes through waste gas desulfurization structure desulfurization purification back and gets into defogging shell in to through defogging subassembly, defogging subassembly absorbs the temperature and the water smoke of waste gas, realize cooling and defogging to waste gas. The invention provides desulfurization and demisting equipment, which improves the desulfurization and demisting effect of a traditional spray type waste gas treatment structure by optimizing the waste gas treatment structure.
Description
Technical Field
The invention relates to the field of environmental protection, in particular to desulfurization and demisting equipment.
Background
In the prior art, the high-temperature exhaust gas discharged by some factories contains harmful gases such as sulfur dioxide, and the exhaust gas contains harmful substances such as particulate matters, so that the harmful substances are directly discharged into the air, and the environment is polluted. The traditional method is to adopt an exhaust gas purifying device to remove sulfur from the exhaust gas before the exhaust gas is discharged, so that the exhaust gas reaches the emission standard. The spray head is adopted to spray water mist on the waste gas, and the water mist is fully contacted with the waste gas, so that sulfur dioxide in the waste gas can be dissolved in water on one hand, and the temperature of the waste gas can be reduced on the other hand, so that the waste gas reaches the emission standard.
The mode of current this kind of spraying purification waste gas, the water smoke that its sprayed is comparatively dispersed, and when waste gas carried through water smoke, waste gas flow dispersed water smoke, influences the homogeneity of waste gas and water smoke contact, therefore the mode of current this kind of spraying purification waste gas, purifying efficiency is not high, and is not good to the cooling effect of waste gas simultaneously.
Accordingly, the prior art is still in need of improvement and development.
Disclosure of Invention
In order to solve the technical problems, the invention aims to provide a desulfurization demisting device for desulfurizing and cooling exhaust gas.
The scheme of the invention is as follows:
a desulfurization and demisting device, which comprises an exhaust gas desulfurization structure and an exhaust gas demisting structure; the waste gas desulfurization structure comprises a desulfurization shell, wherein the desulfurization shell is provided with a desulfurization air inlet and a desulfurization air outlet, and the desulfurization air outlet is communicated with the waste gas demisting structure;
The desulfurization device comprises a desulfurization shell, and is characterized in that at least one desulfurization component is arranged in the desulfurization shell, the desulfurization component comprises a high-pressure water pipe and a screen component arranged opposite to the high-pressure water pipe, the high-pressure water pipe sprays water flow to strike the screen component to generate a water curtain and water spray, and waste gas is contacted with the water curtain and the water spray when passing through the screen component, so that desulfurization purification of the waste gas by the desulfurization component is realized;
The waste gas demisting structure comprises a demisting shell and at least one demisting assembly arranged in the demisting shell, and the front surface of the demisting assembly is arranged facing the direction of the waste gas flow; waste gas passes through in waste gas desulfurization structure desulfurization purifies the back entering defogging shell, and pass through defogging subassembly, defogging subassembly absorbs the temperature and the water smoke of waste gas, realizes cooling and defogging waste gas.
According to the invention, the exhaust gas desulfurization structure is adopted to desulfurize the exhaust gas, meanwhile, particles (such as dust and the like) in the exhaust gas are removed, and the exhaust gas demisting structure is utilized to cool and demist the exhaust gas, so that the exhaust gas reaches the emission standard, and the requirement of environmental protection is met.
The waste gas desulfurization structure adopts the high-pressure water pipe to spray water flow to strike the screen component to generate water curtain and water spray, and the waste gas contacts with the water curtain and the water spray when passing through the screen component, so that the desulfurization component can carry out desulfurization purification on the waste gas. The arrangement mode can generate uniform and stable water curtains and water flowers near the screen component, the water curtains and the water flowers are not easy to be blown away by waste gas flow, the waste gas is ensured to be fully contacted with the water curtains and the water flowers, harmful gases such as sulfur dioxide in the waste gas can be fully dissolved in water, and the desulfurization effect on the waste gas is ensured.
The invention has the beneficial effects that: the invention provides desulfurization and demisting equipment, which improves the desulfurization and demisting effect of a traditional spray type waste gas treatment structure by optimizing the waste gas treatment structure.
Drawings
FIG. 1 is a schematic view of a desulfurizing and demisting apparatus in an embodiment of the present invention.
Fig. 2 is a schematic structural view of an exhaust gas desulfurization structure of a desulfurization and demisting apparatus in an embodiment of the present invention.
Fig. 3 is a schematic view showing an internal structure of an exhaust gas desulfurization structure of a desulfurization and demisting apparatus in an embodiment of the present invention.
Fig. 4 is a top view showing an internal structure of an exhaust gas desulfurization structure of a desulfurization and demisting apparatus in an embodiment of the present invention.
Fig. 5 is a schematic view of the structure of a desulfurization unit of a desulfurization and demisting apparatus in an embodiment of the present invention.
FIG. 6 is a schematic view of the structure of a high-pressure water pipe of the desulfurization and demisting apparatus in the embodiment of the invention.
FIG. 7 is a partial cross-sectional view of a desulfurization assembly of a desulfurization and mist-removal device in an embodiment of the present invention.
FIG. 8 is a schematic view of the structure of a screen separator of a desulfurization and demisting apparatus in an embodiment of the present invention.
FIG. 9 is a side view of a screen separator of a desulfurization and demisting apparatus in an embodiment of the invention.
FIG. 10 is a schematic view of the structure of a blocking member of a desulfurization and demisting apparatus in an embodiment of the present invention.
FIG. 11 is a schematic view showing an internal structure of an exhaust gas demisting structure of a desulfurization demisting apparatus in an embodiment of the present invention.
FIG. 12 is a schematic view showing an internal partial structure of an exhaust gas demisting structure of a desulfurization demisting apparatus in an embodiment of the present invention.
FIG. 13 is a schematic view of a demister assembly of a desulfurization demisting apparatus in an embodiment of the present invention.
FIG. 14 is a schematic view of another angle of a demister assembly of a desulfurization demisting apparatus in an embodiment of the present invention.
FIG. 15 is a schematic view of a metal braid of a desulfurization and defogging device in an embodiment of the present invention.
FIG. 16 is a schematic view of the internal structure of the middle housing of the flue gas demisting structure of the desulfurization demisting apparatus in an embodiment of the present invention.
FIG. 17 is a schematic view of the internal structure of the lower housing of the flue gas demisting structure of the desulfurization demisting apparatus in an embodiment of the present invention.
Fig. 18 is a schematic structural view of a desulfurization and demisting apparatus provided with an exhaust gas purifying structure in an embodiment of the present invention.
Fig. 19 is a schematic view showing an internal structure of an exhaust gas purifying structure of a desulfurization and demisting apparatus in an embodiment of the present invention.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present invention and are not to be construed as limiting the present invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically connected, electrically connected or can be communicated with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
The following disclosure provides many different embodiments, or examples, for implementing different features of the invention. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.
Referring to fig. 1, the present invention discloses a desulfurization and demisting apparatus, which includes an exhaust gas desulfurization structure 100 and an exhaust gas demisting structure 200, wherein the exhaust gas desulfurization structure 100 is disposed in communication with the exhaust gas demisting structure 200. In practical application, the exhaust gas discharged by part of factories has higher temperature, contains harmful gases such as sulfur dioxide and the like, and also contains some particles (such as dust and the like) harmful to the environment.
Specifically, referring to fig. 2,3 and 4, the exhaust gas desulfurization structure 100 includes a desulfurization housing 110, the desulfurization housing 110 being provided with a desulfurization air inlet port 111 and a desulfurization air outlet port 112, the desulfurization air outlet port 112 being in communication with an exhaust gas demisting structure 200. The desulfurization housing 110 is internally provided with a plurality of desulfurization assemblies 120 (see fig. 3, 5 desulfurization assemblies 120 are provided), the desulfurization assemblies 120 comprise a high-pressure water pipe 121 and a screen member 122 arranged opposite to the high-pressure water pipe, when the desulfurization housing is used, an external water source supplies water flow to the high-pressure water pipe 121, the high-pressure water pipe 121 sprays water flow to strike the screen member 122 to generate water curtain and water spray, and waste gas contacts with the water curtain and the water spray when passing through the screen member 122, so that desulfurization purification of the waste gas by the desulfurization assemblies is realized. According to the arrangement structure, the high-pressure water pipe 121 is matched with the screen part 122, so that water curtains and water spray are generated around and inside the whole screen part 122, the water curtains and water spray have higher quality and better stability than the traditional water spray mode, and the water curtains and water spray cannot be blown away by waste gas flow, so that the waste gas can be fully contacted with the water curtains and water spray when passing through the screen part 122, harmful gas in the waste gas can be dissolved in water, and the technical effect of desulfurizing the waste gas is achieved.
Of course, in practical applications, the liquid sprayed by the high-pressure water pipe 121 may be selected according to the characteristics of the exhaust gas, and for example, a liquid having weak alkaline properties may be sprayed.
More specifically, referring to fig. 5, the high-pressure water pipe 121 and the screen member 122 are disposed to face each other, so that the water sprayed from the high-pressure water pipe 121 can strike the screen member 122 to form a water curtain and a water spray.
More specifically, referring to fig. 6, the high pressure water pipe 121 may include a main pipe 1211 disposed laterally, the main pipe 1211 being connected to an external water source through a connection pipe (not shown), a plurality of sub-pipes 1212 being disposed on the main pipe 1211, the plurality of sub-pipes 1212 being disposed in communication with the main pipe 1211, and a plurality of nozzles 1213 facing the screen member 122 being disposed on the sub-pipes 1212. In this arrangement, after the main line is connected to an external water source, water can be sprayed from the nozzles 1213 on the secondary line 1212 to impinge upon the screen member 122 to form a spray, and the water flows downwardly on the screen member 122 due to gravity to form a curtain. It should be noted that, the arrangement structure of the high-pressure water pipe 121 and the screen member 122 ensures that, on one hand, the water flow sprayed from the high-pressure water pipe 121 can strike the screen member 122 to form a water spray and a water curtain, and on the other hand, the screen member 122 is arranged to face the flowing direction of the exhaust gas flow, so that the exhaust gas flow must pass through the screen member 122 and contact with the water spray and the water curtain when flowing in the desulfurization housing 110; and, this arrangement allows the nozzles 1213 on the secondary duct 1212 to be disposed opposite the flow direction of the exhaust gas stream, avoiding clogging of the nozzles 1213 due to accumulation of particulate matter in the exhaust gas at the nozzles 1213 after long-term use.
In some preferred embodiments, the main pipeline 1211 is two sections of long straight pipelines which are transversely arranged, the auxiliary pipelines 1212 can be circular pipelines with different diameters, the plurality of auxiliary pipelines 1212 are arranged to form a concentric circle structure according to the rule of the same circle center and the diameters from small to large (see fig. 6), and the left end and the right end of each auxiliary pipeline 1212 are fixedly communicated with the two sections of main pipeline 1211 which are transversely arranged, and the nozzles 1213 are uniformly distributed on each auxiliary pipeline 1212. In practical application, a reinforcing rib 1214 is further disposed between each of the auxiliary pipelines 1212, and two ends of the reinforcing rib 1214 are respectively and fixedly connected with two adjacent auxiliary pipelines 1212, so as to improve the stability of the entire high-pressure water pipe 121. In practice, the reinforcing ribs 1214 may be long straight steel bars, and two ends of the long straight steel bars are welded or bolted to two adjacent secondary pipelines 1212, respectively.
In other embodiments, the high pressure water pipe 121 may be offset in two layers, such that the nozzles of the high pressure water pipe 121 are offset from one another, in a manner that causes the water jets from the nozzles to impinge on the screen member 122 to form a more uniform curtain and spray.
More specifically, referring to fig. 5 and 7, the screen assembly 122 includes a screen mount 1221 and a screen 1222 disposed on the screen mount 1221 with a front face of the screen 1222 facing the exhaust gas flow direction. In practice, the overall shape of the screen member 122 is designed according to the shape of the air flow space inside the desulfurization enclosure 110, and when the exhaust air flow is required to flow inside the desulfurization enclosure 110, the entire exhaust air must pass through the screen member 122.
In some preferred embodiments, the desulfurization housing 110 is configured in a circular channel shape, the screen fixing member 1221 is cooperatively configured in a cylindrical shape, and the outer surface of the screen fixing member 1221 is fixedly provided with connection legs 1224 (see fig. 5), and these connection legs 1224 are uniformly distributed on the lower surface of the screen fixing member 1221, and one end of each connection leg 1224 is fixedly connected to the lower surface of the screen fixing member 1221, and the other end is fixedly connected to the inner wall of the desulfurization housing 110, so that the screen fixing member 1221 is fixed inside the desulfurization housing 110. The screen 1222 is fixedly disposed inside the screen mount 1221, completely covering the cross section of the screen mount 1221.
In a preferred embodiment, referring to fig. 7, at least two screens 1222 are provided (4 are provided in fig. 7), each screen 1222 being arranged in parallel. In this arrangement, when the water flow ejected from the high-pressure water pipe 121 impacts the multi-layered screen 1222, dense water spray and water curtain are formed on the outer and inner parts of the multi-layered screen, and when the exhaust gas flows through the multi-layered screen component structure, the exhaust gas is more fully contacted with the water spray and water curtain, thereby improving the sulfur removal effect; and the stability of the water spray and the water curtain outside and inside the screen can be further improved by the multilayer screen component structure, the environment formed by the water spray and the water curtain is prevented from being damaged by overlarge flow and speed of waste gas flow, and the sulfur removal effect is ensured.
Further, the screen assembly 122 further includes a screen divider 1223 disposed between two adjacent screens 1222, the screen divider 1223 being fixedly connected to the screens 1222 and the screen mount 1221. Referring specifically to fig. 7, 8 and 9, the screen separator 1223 is configured in a shape of a Chinese character 'mi' and has a certain width, and when the screen separator 1223 is disposed between two adjacent screens 1222, it is achieved that the exhaust gas is not blocked from passing through the screens 1222 (i.e., the screen separator 1223 does not block the screens 1222), and that the two adjacent screens 1222 are separated, so that a certain space is formed between the two adjacent screens 1222, which space is sufficiently filled with water and water curtain in actual use, and thus is sufficiently contacted with moisture and water curtain when the exhaust gas passes through the screens 1222. Finally, the screen separator 1223 may also enhance the stability of the entire screen member 122 so that it may face the water flow impact of the high pressure water pipe 121.
In practical applications, the screen separator 1223 may be made of a metal sheet with a certain width into a rice-shaped structure, and the screen separator 1223 may be fixedly connected to the screen 1222 and the screen fixing member 1221 by welding or screw fixing. Of course, in practical applications, the screen separator 1223 may be configured in other structures, for example, may be configured in a cross-shaped strip structure, or a grid structure, which is not described herein.
In some preferred embodiments, referring to fig. 3 and 4, a partition 130 is disposed inside the desulfurization housing 110, the partition 130 partitions the desulfurization housing 110 into a plurality of installation spaces 150, in practical applications, a high-pressure water pipe 121 and a screen member 122 may be sequentially disposed in the installation spaces 150 along the exhaust gas flow direction according to practical needs, and the screen member 122 is used as an exhaust gas flow inlet of the next installation space 150, specifically, the partition 130 is disposed in a circular shape, an outer edge of the partition 130 is fixedly and hermetically connected with an inner wall of the desulfurization housing 110, the screen member 122 is fixedly disposed in a circular hole of the partition 130, and an outer wall of the screen member 122 is fixedly and hermetically connected with an inner edge of the circular hole of the partition 130. This arrangement constrains the flow path of the exhaust gas within the desulfurization enclosure 110, ensuring that the exhaust gas must pass from one installation space to the next through the desulfurization module 120, thereby ensuring that the exhaust gas is cleaned and desulfurized as it passes through the desulfurization module 120.
In some preferred embodiments, referring to fig. 3 and 4, the desulfurization assembly 120 further includes a blocking member 123 blocking the water flow sprayed from the high-pressure water pipe 121; the blocking member 123 is disposed parallel to the screen member 122 (specifically, disposed in front of the screen member 122), and the blocking member 123 faces the water jet of the high pressure water pipe 121 for blocking the water jet ejected from the previous installation space 150. In practical applications, when the water flow sprayed from the high-pressure water pipe 121 hits the screen member 122, a small portion of the water flow is emitted through the entire screen member 122 due to the screen holes of the screen member 122, and the emitted water flow does not generate water spray or water curtain (or the generated water spray is very dispersed, and the contact effect with the exhaust gas is poor), so that the utilization rate of the water flow is reduced. By arranging the blocking piece 123, the water flow passing through the screen component 122 is blocked, and the water flow can also generate water spray and water curtain when impacting the blocking piece 123, and the water spray and the water curtain also have concentration and stability, so that the contact effect of the water spray and the water curtain with waste gas is ensured, and the waste is avoided. In addition, the surface of the barrier 123 is provided with mesh holes 1231 for passing exhaust gas, and these mesh holes 1231 are spread over the surface of the barrier 123 (see fig. 10).
In another preferred embodiment, referring to fig. 3 and 4, the exhaust gas desulfurization structure 100 is further provided with a rotation shaft 140, both ends of the rotation shaft 140 being fixed to the desulfurization housing 110 by bearings, the rotation shaft 140 traversing the entire desulfurization housing 110. In practical applications, the desulfurization housing 110 is cylindrical, and the rotation shaft 140 is disposed on the central axis of the desulfurization housing 110 (the position shown in fig. 3 and 4). The rotation shaft 140 passes through each desulfurization unit 120, specifically, the centers of the high-pressure water pipe 121, the screen member 122 and the blocking member 123 of the desulfurization unit 120 are provided with through holes for the rotation shaft 140 to pass through, and the blocking member 123 is fixedly sleeved on the rotation shaft 140, so that the blocking member 123 rotates radially along with the rotation of the rotation shaft 140 (see the arrow direction of the rotation shaft 140 in fig. 3), and the high-pressure water pipe 121 and the screen member 122 do not rotate. By this arrangement, the blocking member 123 is driven to rotate by the rotation shaft, so that on one hand, the blocking effect of the blocking member 123 on the water flow can be improved, and on the other hand, the difficulty of the exhaust gas passing through the blocking member 123 can be improved, so that most of the exhaust gas needs to bypass the blocking member 123, flow from the side surface of the blocking member 123 to the next desulfurization module 120, and enter the next installation space 150 through the screen member 122 of the next desulfurization module 120 (the flow path of the exhaust gas is shown in the arrow direction in fig. 4, and since the flow path of the exhaust gas in each installation space 150 is basically consistent, only the flow path of the exhaust gas in one installation space 150 is shown in fig. 4); when the blocking member 123 rotates along with the rotation shaft 140, the side surface of the blocking member 123 is uniformly splashed with water due to the centrifugal force, and when the exhaust gas passes through the side surface of the blocking member 123, the exhaust gas is fully contacted with the splashed water, so that the desulfurization effect of the desulfurization assembly 120 is further improved.
In practical application, referring to fig. 10, the blocking member 123 may be configured in a cylindrical shape, the blocking member 123 is hollow, a plurality of holes 1231 are uniformly formed on the surface of the blocking member 123, and a part of water flow and a part of waste gas enter the blocking member 123 through the holes 1231, so that the water flow and the waste gas in the blocking member 123 are fully mixed and contacted when the blocking member 123 rotates along with the rotating shaft 140, and the desulfurization effect of the desulfurization assembly 120 is further improved. More specifically, the blocking member 123 may be formed in a cylindrical shape by splicing metal sheets, and punching the metal sheets to form the mesh 1231 structure.
In some preferred embodiments, the desulfurization and demisting apparatus is provided with a water flow circulation system (not shown in the figures) that provides a water source for the entire desulfurization and demisting apparatus, while the water flow after use, after collection, enters the water flow circulation system for recycling. For example, in the exhaust gas desulfurization structure 100, a water flow recovery pipe (not shown) is provided at the bottom of the desulfurization housing 110, and water flow sprayed from the high-pressure water pipe 121 is accumulated at the bottom of the desulfurization housing 110 after desulfurization and purification of the exhaust gas, and enters the water flow circulation system through the water flow recovery pipe, and is conveyed to the high-pressure water pipe 121 again after passing through the water flow circulation system.
The desulfurization and demisting apparatus disclosed in the present invention further includes an exhaust gas demisting structure 200, referring to fig. 1 and 12, the exhaust gas demisting structure 200 includes a demisting housing 210 and a plurality of demisting assemblies 220 disposed inside the demisting housing 210, the front surface of the demisting assemblies 220 being disposed facing the flow direction of the exhaust gas. During the use, waste gas gets into defogging shell 210 after waste gas desulfurization structure 100 desulfurization purification to through defogging subassembly 220, defogging subassembly 220 absorbs the temperature and the water smoke of waste gas, realizes cooling and defogging to the waste gas.
In practice, the demister assembly 220 can be made of some known environment-friendly materials, such as activated carbon, filter cotton, etc. Specifically, referring to fig. 1 and 12, the entire exhaust gas demisting structure 200 is vertically disposed, a mounting bracket 211 is fixedly disposed inside the demisting housing 210, demisting assemblies 220 are fixedly disposed on the mounting bracket 211, and the demisting assemblies 220 are arranged from bottom to top, and the front face of each demisting assembly 220 is opposite to the flow direction of the exhaust gas flow. The lower part of the demisting housing 210 is communicated with the exhaust gas desulfurization structure 100, and an exhaust gas outlet 212 of the demisting housing 210 is arranged at the top, and after passing through the exhaust gas desulfurization structure 100, exhaust gas enters the demisting housing 210 from the lower part of the demisting housing 210 and passes through each demisting assembly 220 from bottom to top, and is discharged from the exhaust gas outlet 212 at the top of the demisting housing 210.
In some preferred embodiments, referring to fig. 13, 14 and 15, the mist eliminator assembly 220 includes a plurality of metal braiding pieces 221 arranged in a stack, each metal braiding piece 221 facing in the exhaust gas flow direction on the front side. In practical applications, the metal braid 221 may be made of a metal wire braid with good heat conduction effect, for example, made of copper wire braid. After the metal braiding pieces 221 are laminated, the surrounding piece 222 is used for fixedly surrounding the metal braiding pieces 221 (the surrounding piece 222 can be made of metal wires in a braiding mode), so that the demister assembly 220 is formed. This kind of defogging subassembly 220 structure, its inside innumerable tiny gap that has, when waste gas when defogging subassembly 220, waste gas can fully contact with defogging subassembly 220, quick realization heat exchange, defogging subassembly 220 absorb the heat in the waste gas fast, realize cooling down to waste gas, water smoke and other particulate matter in the waste gas simultaneously, after defogging subassembly 220, blockked the defogging effect to waste gas by innumerable wire and detained inside defogging subassembly 220.
In some preferred embodiments, referring to fig. 13, 14 and 15, after the metal braid 221 is extruded to form a regular corrugation (e.g., square corrugation, saw tooth corrugation, etc.), it is then staggered and stacked to form the mist eliminator assembly 220. This arrangement makes the inner space of the demisting assembly 220 larger, and the wire distribution of the metal braid 221 is more reasonable, which helps to improve the heat absorbing and demisting effect of the demisting assembly 220.
In some preferred embodiments, the exhaust gas demisting structure 200 further includes a demisting water pipe (not shown in the figure) for cleaning the demisting assemblies 220, the demisting water pipe is disposed at the top of the demisting assembly 220 with the highest position, and in operation, the demisting water pipe washes each demisting assembly 220 from top to bottom, so that, on one hand, the demisting assembly 220 can be cooled, and on the other hand, particulate matter accumulated inside the demisting assembly 220 can be removed.
Still further, referring to fig. 11, the defogging housing 210 is divided into an upper housing 210a, a middle housing 210b and a lower housing 210c, wherein the upper housing 210a has a smaller diameter than the middle housing 210b and the middle housing 210b has a smaller diameter than the lower housing 210c, so that the entire defogging housing 210 is formed in a three-stage structure from bottom to top. Each defogging subassembly 220 fixed mounting is inside upper portion shell 210a to, lower part shell 210c is inside can set up first washing structure 230, and middle part shell 210b is inside to set up second washing structure 240, and first washing structure 230 and second washing structure 240's setting can further improve the desulfurization purifying effect of waste gas, guarantees that the particulate matter (harmful substance such as dust) that waste gas contained in the waste gas is cleared up as far as when getting into defogging subassembly 220 of upper portion shell 210a, avoids too much particulate matter to get into defogging subassembly 220, reduces defogging effect and life of defogging subassembly 220.
In certain preferred embodiments, referring to fig. 17, a first cleaning structure 230 is provided inside the lower housing 210c, and the first cleaning structure 230 is composed of a first cleaning assembly 231 and a first cleaning water pipe 232. The first cleaning member 231 is fixed inside the lower housing 210c and disposed to face the direction of the flow of the exhaust gas, the first cleaning water pipe 232 is disposed below the first cleaning member 231, and the first cleaning water pipe 232 sprays water upward so that the water flow hits the first cleaning member 231 to form a spray and a curtain. The arrangement mode is that the waste gas flows from bottom to top, and the water spray and the water curtain collide with the waste gas from top to bottom, so that the contact effect of the waste gas, the water spray and the water curtain is further improved, and the desulfurization purification effect is improved.
In practice, the first cleaning unit 231 may have the same structure as the demister unit 220 or the screen member 122. Of course, in some preferred embodiments, the first cleaning assembly 231 may be configured by using a multi-layered screen structure 2311 and a multi-layered metal braid structure 2312, and referring to fig. 17, the multi-layered screen structure 2311 is disposed below the multi-layered metal braid structure 2312, and the two may be fixedly stacked by welding or a connecting member, etc., to form the first cleaning assembly 231. In this arrangement, when the first cleaning water pipe 232 sprays water upward to strike the first cleaning assembly 231, the water first contacts the multi-layered screen structure 2311 to generate uniform spray and curtain; and because the through holes exist on the surface and inside of the multi-layer screen structure 2311, part of water flow can penetrate through the multi-layer screen structure 2311, at this time, the part of water flow is blocked through the multi-layer metal braiding part structure 2312 (the multi-layer metal braiding part structure 2312 is composed of metal braiding parts, the structural density is high, and the water flow is difficult to penetrate through), the part of water flow collides with the multi-layer metal braiding part structure 2312 to generate water spray and water curtain, so that the utilization rate of the water flow to generate water spray and water curtain can be improved, and meanwhile, the generated water spray and water curtain can be guaranteed to be uniformly distributed on the surface and inside of the whole first cleaning assembly 231, and the cleaning effect on waste gas is improved.
In practical use, referring to fig. 17, a partition 130 may be disposed inside the lower housing 210c, and the partition 130 may be used to limit and block the flow direction of the exhaust gas, so as to ensure that the exhaust gas flows upward again through the first cleaning assembly 231. In a preferred embodiment, the installation manner of the partition 130 and the first cleaning structure 230 is identical to that of the partition 130 and the screen member 122 in the above-mentioned exhaust gas desulfurization structure 100, that is, the partition 130 is arranged in a circular shape, the outer edge of the partition 130 is fixedly connected with the inner wall of the lower housing 210c in a sealing manner, the first cleaning structure 230 is arranged at the circular hole of the partition 130, and the outer wall of the first cleaning structure 230 is fixedly connected with the inner edge of the partition 130 in a sealing manner, so that the first cleaning structure 230 becomes the only outlet.
In certain preferred embodiments, referring to fig. 16, at least one second cleaning structure 240 is disposed within the middle housing 210b, with a plurality of second cleaning structures 240 disposed in a bottom-up arrangement. The second cleaning structure 240 is composed of a second cleaning assembly 241 and a second cleaning water pipe 242. And, the second cleaning member 241 is disposed above the second cleaning water pipe 242 with its front surface facing the flow direction of the exhaust gas, and the second cleaning water pipe 242 sprays water upward to impinge on the second cleaning member 241 to form a spray and a curtain. The arrangement mode is that the waste gas flows from bottom to top, and the water spray and the water curtain collide with the waste gas from top to bottom, so that the contact effect of the waste gas, the water spray and the water curtain is further improved, and the desulfurization purification effect is improved. And, the water jet of second wash water pipe 242 sets up against the waste gas air current direction, avoids using the back for a long time, causes the jam to second wash water pipe 242.
In practice, the second cleaning element 241 may have the same structure as the demister 220 or the screen member 122. Of course, in certain preferred embodiments, the second cleaning element 241 may be comprised of a plurality of screens disposed in a bottom-to-top sequence, each screen facing forward toward the flow of the exhaust gas stream.
In practice, the screen constituting the second cleaning element 241 may be punched out of a metal plate.
In practical application, the screen mesh forming the second cleaning assembly 241 may be fixedly connected with the inner wall of the middle casing 210b by sealing the edge thereof; or by other fixed connection structures (e.g., brackets, etc.) within the middle housing 210 b.
In a preferred embodiment, the distance between the second cleaning element 241 of the second cleaning structure 240 and the second cleaning water pipe 242 is 1-4 m, which can ensure that when the second cleaning water pipe 242 sprays water upwards to strike the second cleaning element 241, uniform water spray is generated inside and outside the second cleaning element 241, and the water flow falls to form a uniform water curtain; in addition, a sufficient distance between the second cleaning assembly 241 and the second cleaning water pipe 242 (see fig. 16) can be provided, so that the formed water curtain occupies a certain space, the upward waste gas and the downward water curtain can be ensured to be fully contacted, and the cleaning effect of the waste gas is improved.
In practice, in order to compress the height of the entire exhaust gas demisting structure 200, the distance of the adjacent second cleaning structure 240 inside the middle casing 210b may be suitably reduced, specifically, the second cleaning water pipe 242 of the second cleaning structure 240 is disposed on top of the second cleaning assembly 241 of the second cleaning structure 240 below the second cleaning structure 240 (see fig. 16 a).
In practical applications, the distance between the second cleaning element 241 and the second cleaning water pipe 242 of the second cleaning structure 240 needs to be reasonably selected according to the water pressure of the second cleaning water pipe 242 and the exhaust gas treatment requirement.
More specifically, the first cleaning water pipe 232 and the second cleaning water pipe 242 may have the same structure as the high-pressure water pipe 121, that is, the first cleaning water pipe 232 and the second cleaning water pipe 242 each include a main pipe and an auxiliary pipe, where the main pipe is two sections of long straight pipes that are transversely arranged, the auxiliary pipes may be circular pipes with different diameters, the plurality of auxiliary pipes are arranged to form a concentric circle structure according to the rule of the same circle center and the small-to-large diameter, and the left end and the right end of each auxiliary pipe are fixedly communicated with the two sections of main pipes that are transversely arranged, and the nozzles are distributed on the auxiliary pipes. In practical application, still be provided with the strengthening rib between each vice pipeline, this strengthening rib both ends are two adjacent vice pipelines of fixed connection respectively to improve whole water pipe structure's steadiness. In practical application, the reinforcing rib can be a long straight steel bar, and two ends of the long straight steel bar are respectively welded or connected with two adjacent auxiliary pipelines through bolts.
Of course, the first cleaning water pipe 232 and the second cleaning water pipe 242 may also adopt other water pipe structures, which are not described in detail herein.
In other embodiments, the first cleaning water pipe 232 and the second cleaning water pipe 242 may be offset in two layers, so that the nozzles are offset back and forth/up and down, in such a way that the water jet from the nozzles impinges on the cleaning assembly to form a more uniform water curtain and spray.
In practical applications, referring to fig. 1, the bottom of the demisting shell 210 is tapered to facilitate water flow convergence, and the water flow accumulated at the bottom of the demisting shell 210 enters the water flow circulation system through the water flow recovery pipe for recycling.
In some preferred embodiments, referring to fig. 18, in practice, the desulfurization and demisting apparatus further includes an exhaust gas purifying structure 300, one end of the exhaust gas purifying structure 300 is connected to an exhaust gas source, and the other end is communicated with the desulfurization inlet 111 of the exhaust gas desulfurization structure 100 through an exhaust pipe 311, and after the exhaust gas is purified by the exhaust gas purifying structure 300, the exhaust gas enters the interior of the exhaust gas desulfurization structure 100 through the desulfurization inlet 111 of the exhaust gas desulfurization structure 100, and then passes through the exhaust gas desulfurization structure 100 and the exhaust gas demisting structure 200 in sequence, and is discharged from the exhaust gas outlet 212 of the exhaust gas demisting structure 200.
Specifically, referring to fig. 19, the exhaust gas purifying structure 300 includes a purifying housing 310 and an L-shaped duct 320 provided inside the purifying housing 310, the L-shaped duct 320 being provided at a lower half of the inside of the purifying housing 310, and one end opening of the L-shaped duct 320 being fixed to the purifying housing 310 and communicating with an exhaust gas source, the other end opening of the L-shaped duct 320 being provided downward. In this arrangement, when the exhaust gas enters the exhaust gas purifying structure 300, the flow direction of the gas is downward, and then the purifying housing 310 is filled from bottom to top in the continuous conveying process of the exhaust gas, so that the lower part of the purifying housing 310 has the function of buffering the exhaust gas.
In a preferred embodiment, referring to fig. 19, the exhaust gas purifying structure 300 further includes a purifying member 330 (a plurality may be provided) fixedly provided inside the purifying housing 310, the purifying member being disposed above the L-shaped duct 320. Specifically, the purification assembly 330 includes a purification water pipe 331 and a filtering part 332, the filtering part 332 facing the flow direction of the exhaust gas flow, filtering the exhaust gas; and, the purifying water pipe 331 is disposed below the filtering part 332, and the purifying water pipe 331 sprays water upward to impinge on the filtering part 332, so that the outside and inside of the filtering part 332 form a spray and a water curtain, and the exhaust gas is further purified by the spray and the water curtain.
More specifically, the purge assembly 330 may be configured as the second purge configuration 240 described above. Specifically, the purifying assembly 330 includes a purifying water pipe 331 and a filtering part 332, and the purifying water pipe 331 is disposed below the filtering part 332, and the purifying water pipe 331 ejects water upward to strike the filtering part 332, forming uniform spray inside and outside the filtering part 332, and simultaneously, the water drops to form uniform water curtain. The function of the cleaning assembly 330 in this manner, which acts on the second cleaning structure 240, is not described in detail herein.
In practice, the filter 332 may have the same structure as the second cleaning module 241.
In some preferred embodiments, the filter element 332 may be comprised of a plurality of punched metal sheets arranged in a bottom-to-top array.
In other preferred embodiments, the filter element 332 may be constructed as the screen elements described above, i.e., the filter element 332 may be constructed by stacking multiple layers of screens, with adjacent screens being spaced apart by screen dividers. Alternatively, the filter member 332 may have the same structure as the demister assembly 220 described above, that is, the filter member 332 may have a metal braid structure that is stacked in a staggered manner, and the filter member 332 may have an effect of filtering and purifying the exhaust gas by stacking and fixing the metal braid after forming a regular corrugation (for example, square corrugation or saw tooth corrugation) by punching.
In practical application, the purifying water pipe 331 is disposed below the filtering component 332, and the water jet of the purifying water pipe 331 faces upward to face the filtering component 332. In this arrangement, during operation, the exhaust gas slowly flows upward from the lower side of the filtering component 332, and the water flow sprayed by the purifying water pipe 331 impacts the filtering component 332 to form water spray, and meanwhile, due to the action of gravity, the water flow falls downwards to form a water curtain, so that the downward water spray and the water curtain collide with the upward exhaust gas, the contact effect of the exhaust gas and the water flow is improved, and the purifying effect of the exhaust gas purifying structure 300 is improved. And, the water jet of purifying water pipe 331 sets up against the waste gas air current direction, avoids using for a long time the back, causes the jam to purifying water pipe 331. In addition, since a large amount of exhaust gas is accumulated at the lower portion of the purification housing 310 due to the L-shaped duct 320, the exhaust gas accumulated at the lower portion of the purification housing 310 can be efficiently washed when the water curtain is washed down from top to bottom, thereby improving the purification efficiency and effect.
More specifically, the purifying water pipe 331 may adopt the same structure as the high-pressure water pipe 121, that is, the purifying water pipe 331 may also include a main pipe and an auxiliary pipe, where the main pipe is a long straight pipe with two sections being transversely arranged, and the auxiliary pipe may be a circular pipe with different diameters, and the plurality of auxiliary pipes are arranged to form a concentric circle structure according to the rule of the same circle center and the diameters from small to large (see fig. 6), and the left end and the right end of each auxiliary pipe are respectively fixedly communicated with the main pipe with two sections being transversely arranged, and the nozzles are all distributed on each auxiliary pipe. In practical application, still be provided with the strengthening rib between each vice pipeline, two adjacent vice pipelines of this strengthening rib both ends fixed connection respectively to improve the steadiness of whole purification water pipe 331 structure. In practical application, the reinforcing rib can be a long straight steel bar, and two ends of the long straight steel bar are respectively welded or connected with two adjacent auxiliary pipelines through bolts.
Of course, other water pipe structures may be used for the purifying water pipe 331, which is not described in detail herein.
In other embodiments, the purge tube 331 may be offset in two layers, such that the nozzles of the purge tube 331 are offset from one another or from top to bottom, in a manner that results in a more uniform curtain and spray of water from the nozzles impinging on the filter element 332.
Further, the bottom of the purge housing 310 is provided in a cone shape with the apex of the cone being provided downward, and a drain port 312 is provided at the apex of the cone. This arrangement facilitates water flow to collect at the bottom of the purge housing 310 and drainage through the drain port 312. Specifically, the water outlet 312 is communicated with a water flow circulation system, and water flows through the water outlet 312 and enters the water flow circulation system for recycling.
In the description of the present specification, reference to the terms "one embodiment," "certain embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
In summary, although the present invention has been described in terms of the preferred embodiments, the preferred embodiments are not limited to the above embodiments, and various modifications and changes can be made by one skilled in the art without departing from the spirit and scope of the invention, and the scope of the invention is defined by the appended claims.
Claims (5)
1. The desulfurization and demisting device is characterized by comprising an exhaust gas desulfurization structure and an exhaust gas demisting structure; the waste gas desulfurization structure comprises a desulfurization shell, wherein the desulfurization shell is provided with a desulfurization air inlet and a desulfurization air outlet, and the desulfurization air outlet is communicated with the waste gas demisting structure;
The desulfurization device comprises a desulfurization shell, and is characterized in that at least one desulfurization component is arranged in the desulfurization shell, the desulfurization component comprises a high-pressure water pipe and a screen component arranged opposite to the high-pressure water pipe, the high-pressure water pipe sprays water flow to strike the screen component to generate a water curtain and water spray, and waste gas is contacted with the water curtain and the water spray when passing through the screen component, so that desulfurization purification of the waste gas by the desulfurization component is realized;
The high-pressure water pipe comprises a main pipeline which is transversely arranged, the main pipeline is connected with an external water source through a connecting pipeline, a plurality of auxiliary pipelines are arranged on the main pipeline and are communicated with the main pipeline, a plurality of nozzles facing the screen component are arranged on the auxiliary pipeline, the main pipeline is two sections of long straight pipelines which are transversely arranged, the auxiliary pipelines are circular pipelines with different diameters, the plurality of auxiliary pipelines are arranged to form a concentric circle structure according to the rule that the circle centers are the same and the diameters are small to large, the left end and the right end of each auxiliary pipeline are fixedly communicated with the main pipeline which is transversely arranged in two sections, the nozzles are uniformly distributed on the auxiliary pipelines, the high-pressure water pipe is arranged in two layers in a staggered manner, and the nozzles of the high-pressure water pipe are arranged in a front-back staggered manner; the screen component comprises a screen fixing piece and a screen arranged in the screen fixing piece, and the front surface of the screen faces the direction of the exhaust gas flow;
The screen meshes are at least two, and the screen meshes are arranged in parallel; the screen assembly further comprises a screen divider disposed between two adjacent screens, the screen divider being fixedly connected to the screens and the screen mount; the screen separator is in a rice-shaped structure;
The waste gas demisting structure comprises a demisting shell and at least one demisting assembly arranged in the demisting shell, and the front surface of the demisting assembly is arranged facing the direction of the waste gas flow; the waste gas enters the demisting shell after being desulfurized and purified by the waste gas desulfurization structure, and passes through the demisting assembly, and the demisting assembly absorbs the temperature and water mist of the waste gas to realize cooling and demisting of the waste gas;
The desulfurization assembly further includes a blocking member blocking the water flow sprayed from the high-pressure water pipe; the baffle is arranged parallel to the screen part, and the front surface of the baffle faces the water jet of the high-pressure water pipe; the blocking piece is arranged in a cylinder shape, the inside of the blocking piece is hollow, and the surface of the blocking piece is provided with sieve holes;
The rotating shaft is fixedly connected with the blocking piece and drives the blocking piece to radially rotate; the two ends of the rotating shaft are fixed on the desulfurization shell through bearings, the rotating shaft transversely penetrates through the whole desulfurization shell, the rotating shaft penetrates through each desulfurization assembly, through holes for the rotating shaft to penetrate through are formed in the centers of the high-pressure water pipe, the screen component and the blocking piece of each desulfurization assembly, the blocking piece is fixedly sleeved on the rotating shaft, the blocking piece radially rotates along with the rotation of the rotating shaft, and the high-pressure water pipe and the screen component do not rotate;
The inside baffle that is provided with of desulfurization casing, the baffle will the desulfurization casing separates and forms a plurality of installation spaces, the baffle sets up into the ring, the outer edge of baffle with desulfurization casing inner wall fixed sealing connection, screen cloth part is fixed to be set up in the ring hole of baffle, screen cloth part's outer wall with along fixed sealing connection in the ring hole of baffle.
2. The desulfurization and demisting apparatus according to claim 1, wherein the demisting assembly includes a plurality of metal braiding members arranged in a stacked arrangement, each of the metal braiding members having a front face facing in the exhaust gas flow direction.
3. The desulfurization and demisting apparatus according to claim 2, wherein the metal braid is extruded to form a regular corrugation, and each of the metal braids is arranged in a staggered stack to form a demister assembly.
4. The desulfurization and demisting apparatus according to claim 1, wherein the flue gas demisting structure further comprises a demisting water pipe that cleans the demisting assembly.
5. The desulfurization and demisting apparatus according to claim 1, further comprising an exhaust gas purifying structure having one end externally connected to an exhaust gas source and the other end in communication with a desulfurization inlet of the exhaust gas desulfurization structure;
The waste gas purifying structure comprises a purifying shell and an L-shaped conduit arranged in the purifying shell, wherein the L-shaped conduit is arranged at the lower half part in the purifying shell, one end opening of the L-shaped conduit is fixed on the purifying shell and is connected with a waste gas source, and the other end opening of the L-shaped conduit is downwards arranged.
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| CN201810890726.5A CN108722126B (en) | 2018-08-07 | 2018-08-07 | Desulfurization defogging equipment |
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| CN201810890726.5A CN108722126B (en) | 2018-08-07 | 2018-08-07 | Desulfurization defogging equipment |
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| KR102108714B1 (en) * | 2018-10-09 | 2020-05-07 | 이송무 | Dry type a desulfurize apparatus with cartridge exchange type |
| CN111195476B (en) * | 2020-03-12 | 2022-02-15 | 北京北控京奥建设有限公司 | A water smoke curtain injection apparatus for emergent processing of liquid ammonia leakage |
| CN116078151B (en) * | 2023-02-28 | 2023-08-04 | 临沂市环境保护科学研究所有限公司 | Automatic change spraying line exhaust treatment device |
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| JP2014231744A (en) * | 2013-05-28 | 2014-12-11 | 株式会社豊田自動織機 | Exhaust gas purification device |
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