CN111167234A - Purification and exhaust device for smoke of steelmaking furnace - Google Patents
Purification and exhaust device for smoke of steelmaking furnace Download PDFInfo
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- CN111167234A CN111167234A CN201911410402.8A CN201911410402A CN111167234A CN 111167234 A CN111167234 A CN 111167234A CN 201911410402 A CN201911410402 A CN 201911410402A CN 111167234 A CN111167234 A CN 111167234A
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- 239000000779 smoke Substances 0.000 title claims abstract description 79
- 238000000746 purification Methods 0.000 title claims abstract description 44
- 238000009628 steelmaking Methods 0.000 title claims abstract description 44
- 239000007789 gas Substances 0.000 claims abstract description 80
- 230000007246 mechanism Effects 0.000 claims abstract description 72
- 239000000428 dust Substances 0.000 claims abstract description 34
- 238000001816 cooling Methods 0.000 claims abstract description 20
- 239000002245 particle Substances 0.000 claims abstract description 10
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 41
- 239000003546 flue gas Substances 0.000 claims description 41
- 239000007788 liquid Substances 0.000 claims description 37
- 238000007791 dehumidification Methods 0.000 claims description 28
- 239000003814 drug Substances 0.000 claims description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 238000009434 installation Methods 0.000 claims description 10
- 239000007921 spray Substances 0.000 claims description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 9
- 238000005507 spraying Methods 0.000 claims description 8
- 230000000149 penetrating effect Effects 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 5
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 6
- 229910000831 Steel Inorganic materials 0.000 abstract description 5
- 239000010959 steel Substances 0.000 abstract description 5
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 3
- 239000011593 sulfur Substances 0.000 abstract description 3
- 229910052717 sulfur Inorganic materials 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 11
- 239000000498 cooling water Substances 0.000 description 7
- 229940079593 drug Drugs 0.000 description 6
- 239000008187 granular material Substances 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910001339 C alloy Inorganic materials 0.000 description 1
- 241000282414 Homo sapiens Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- QMQXDJATSGGYDR-UHFFFAOYSA-N methylidyneiron Chemical compound [C].[Fe] QMQXDJATSGGYDR-UHFFFAOYSA-N 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/02—Separating dispersed particles from gases, air or vapours by liquid as separating agent by passing the gas or air or vapour over or through a liquid bath
-
- 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
- B01D53/02—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 adsorption, e.g. preparative gas chromatography
- B01D53/04—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 adsorption, e.g. preparative gas chromatography with stationary adsorbents
-
- 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
- B01D53/26—Drying gases or vapours
-
- 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
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Abstract
The invention relates to the technical field of smoke treatment of steelmaking furnaces, and provides a purification and exhaust device for smoke of a steelmaking furnace, aiming at solving the problems that a steelmaking furnace can generate more smoke dust during steelmaking, the smoke dust contains dust particles as well as harmful gases such as sulfur, nitrogen and the like, the direct exhaust does not conform to the national emission standard, and serious atmospheric pollution can be caused; the input end of the temperature-reducing and smoke-dust-removing mechanism is communicated with the smoke exhaust pipe and is used for reducing the temperature of the smoke and removing particles mixed in the smoke; the gas purification mechanism is connected with the output end of the cooling smoke dust removing mechanism through a gas pipe I and is used for purifying harmful gas in smoke. The invention is especially suitable for purifying the smoke of the steel furnace and has higher social use value and application prospect.
Description
Technical Field
The invention relates to the technical field of steelmaking furnace flue gas treatment, in particular to a purification and exhaust device for steelmaking furnace flue gas.
Background
Steel, which is a general name for iron-carbon alloy with carbon content between 0.02% and 2.11% by mass, has a long history of application and research on steel by human beings, but until the invention of the 19 th century bailey steel-making method, the preparation of steel is a high-cost and low-efficiency work, and nowadays, steel becomes one of the most used materials in the world with low price and reliable performance, and is an indispensable component in the building industry, the manufacturing industry and the daily life of people.
The steel-making furnace is the main equipment used for steel making, including a converter and an intermediate frequency furnace, but the converter and the intermediate frequency furnace can generate more smoke dust during steel making, and the smoke dust contains harmful gases such as sulfur, nitrogen and the like besides dust particles, so that the direct discharge not only does not accord with the national emission standard, but also can damage the air quality and cause serious atmospheric pollution.
The patent with the publication number of CN206269606U discloses an environmental protection steelmaking furnace, and it includes the steelmaking furnace, the top opening part fixedly connected with exhaust treatment device of steelmaking furnace, exhaust treatment device includes the intake pipe, the one end of intake pipe and the opening part fixed connection of steelmaking furnace, and the other end of intake pipe and the air inlet fixed connection of exhaust treatment case, the inner chamber top fixed mounting of exhaust treatment case has the water pipe, and the device reaches the effect of purifying waste gas, reduces the pollution that the steelmaking led to the fact the air, but the device has the problem that purification efficiency is low, for this reason, we have proposed a purification exhaust apparatus who is used for steelmaking furnace flue gas.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a purification and exhaust device for the smoke of a steelmaking furnace, which overcomes the defects of the prior art, has reasonable design and compact structure and aims to solve the problems that more smoke dust is generated during steelmaking of the steelmaking furnace, the smoke dust contains harmful gases such as sulfur, nitrogen and the like besides dust particles, the direct exhaust does not conform to the national emission standard and serious atmospheric pollution is caused.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme:
a purification and exhaust device for smoke of a steelmaking furnace comprises a device shell connected with the steelmaking furnace through a smoke exhaust pipe, wherein a temperature reduction and smoke dust removal mechanism, a gas purification mechanism and a dehumidification mechanism are sequentially arranged in an inner cavity of the device shell along the movement direction of the smoke;
the input end of the temperature-reducing and smoke-dust-removing mechanism is communicated with the smoke exhaust pipe and is used for reducing the temperature of the smoke and removing particles mixed in the smoke;
the gas purification mechanism is connected with the output end of the temperature-reducing and smoke-removing mechanism through a gas pipe I and is used for purifying harmful gas in the smoke;
the dehumidification mechanism is connected with the output end of the gas purification mechanism through a gas pipe II and used for removing moisture in the flue gas, and an exhaust pipe extending to the outer cavity of the device shell is arranged on the output end of the dehumidification mechanism;
the smoke exhaust pipe is provided with a one-way air inlet valve, the exhaust pipe is provided with a one-way exhaust valve, the gas pipe I is provided with a control valve II, and the gas pipe II is provided with a control valve III.
Further, cooling smoke and dust removing mechanism is including a jar body and through the motor frame of support mounting at jar body lower extreme, motor frame fixed mounting is on the interior diapire of device shell, impeller is installed in the rotation of the inner chamber lower part of the jar body, and impeller's lower axle head extends to the diapire that runs through jar body and the roof of motor frame in proper order and installs on driving motor's output, driving motor installs on the interior diapire of motor frame, it installs the drain pipe to link up on the diapire of the jar body, and the other end of drain pipe extends to the exocoel of device shell and installs the drain valve, the inner chamber upper portion of the jar body is equipped with the smoke and.
Further, the smoke and dust removing component comprises a spraying pipe network fixedly installed on the inner top wall of the tank body, a plurality of spray heads arranged at equal intervals are installed at the lower end of the spraying pipe network, a water inlet pipe is installed at the input end of the spraying pipe network, the input end of the water inlet pipe extends to the outer cavity of the device shell and is connected with an external water source, and a water pump is installed on the water inlet pipe.
Furthermore, the smoke and dust removing assembly further comprises a table-shaped gas collecting cylinder arranged below the spraying pipe network, and the table-shaped gas collecting cylinder is fixedly arranged on the inner wall of the tank body.
Furthermore, the gas purification mechanism comprises a purification box body, the lower end of the purification box body is provided with a liquid discharge pipe in a penetrating way, the output end of the liquid discharge pipe extends to the outer cavity of the device shell and is provided with a liquid discharge valve, a liquid medicine pipe is inserted on the side wall of the purifying box body, the other end of the liquid medicine pipe is arranged on the side wall of the liquid medicine box in a penetrating way, the liquid medicine box is arranged on the bottom wall of the device shell, a piston is arranged in the inner cavity of the liquid medicine box in a sliding way, an installation rod is vertically arranged on the side wall of the piston, the other end of the mounting rod extends to the outer cavity of the liquid medicine box and is mounted on the annular rack, two groups of parallel teeth in the annular rack are alternately meshed with a gear lack, the middle part of the gear lack is inserted with a rotating shaft, and the rotating shaft is fixedly sleeved with a driven belt wheel, the driven belt wheel is connected with a driving belt wheel through a belt, and the driving belt wheel is fixedly installed at the output end of the driving motor.
Further, dehumidification mechanism is including the dehumidification box, and the inner chamber middle part horizontal installation of dehumidification box has the active carbon layer, and the gaseous detector is installed to the lateral wall lower part of dehumidification box, and the sense terminal of gaseous detector extends to in the inner chamber of dehumidification box.
Furthermore, the lower portion of the rear wall of the dehumidifying box body is sequentially connected with an air return pipe I, an air return pipe II and an air return pipe III in a through mode from top to bottom, control valves I are mounted on the air return pipe I, the air return pipe II and the air return pipe III, and the air return pipe I is connected with the upper portion of the rear wall of the dehumidifying box body in a through mode.
Furthermore, the air return pipe II is communicated with the cooling and smoke dust removing mechanism, and the air return pipe III is communicated with the gas purifying mechanism.
Furthermore, the device also comprises a control mechanism which is used for controlling the opening and closing of the one-way exhaust valve, the one-way intake valve, the control valve II and the control valve III.
(III) advantageous effects
The embodiment of the invention provides a purification and exhaust device for steelmaking furnace flue gas, which has the following beneficial effects:
1. through the combined structure of the cooling smoke dust removing mechanism, the gas purifying mechanism and the dehumidifying mechanism, smoke generated by the steel-making furnace sequentially enters the cooling smoke dust removing mechanism through the smoke exhaust pipe to be cooled and particles included in the smoke are removed; the gas enters a gas purification mechanism through a gas transmission pipe I to purify harmful gas in the flue gas; the flue gas enters the dehumidification mechanism through a gas conveying pipe II to remove moisture in the flue gas; and the gas detector that sets up in the cooperation dehumidification mechanism, after detecting that gas accords with emission standard, discharge through the blast pipe, guaranteed the quality of purification.
2. Through a jar body, driving motor, impeller and the integrated configuration who removes the smoke and dust subassembly, after the input flue gas, the gaseous cooling can be realized through the internal cooling water of jar to the flue gas, and simultaneously, some granule in the flue gas can also be taken away to microthermal cooling water, improve the cooling and remove the smoke and dust effect, driving motor starts, drive impeller rotates, the cooling water is stirred, guarantee the cooling effect, the surplus granule in the flue gas that gets rid of that the smoke and dust subassembly on the inner chamber upper portion of the jar body can be further simultaneously, improve the smoke and dust effect.
3. Through the integrated configuration of one-way admission valve, one-way discharge valve, control flap II and control flap III on the pipeline, purification progress that can effectual control flue gas guarantees to obtain abundant purification in every purification mechanism to improve purifying effect.
4. Through muffler I, muffler II and muffler III, the cooperation gas detection appearance detects the flue gas after purifying, when unqualified, opens control flap I on the corresponding muffler, carries to go back to and purifies again in corresponding mechanism to guarantee the thorough purification of flue gas, protect atmospheric environment.
Drawings
The above features, technical characteristics, advantages and implementation of a device for purifying exhaust gases of steelmaking furnaces, will be further explained in a clearly understandable way with reference to the accompanying drawings.
FIG. 1 is a schematic view of the structural installation of the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention;
FIG. 3 is a rear view of the structure of the present invention;
FIG. 4 is a schematic structural view of a temperature-reducing and smoke-removing mechanism according to the present invention;
FIG. 5 is a schematic structural view of a gas purification mechanism according to the present invention;
FIG. 6 is a schematic structural view of a dehumidifying mechanism according to the present invention;
FIG. 7 is a block diagram of the flow structure of the present invention.
In the figure: a steel making furnace 1, a smoke exhaust pipe 2, a device shell 3, an exhaust pipe 4, a temperature-reducing smoke-removing mechanism 5, a tank body 51, a bracket 52, a motor frame 53, a driving motor 54, a stirring impeller 55, a water discharge pipe 56, a water discharge valve 57, a smoke-removing component 58, a table-shaped gas gathering cylinder 581, a spraying pipe network 582, a spray head 583, a water inlet pipe 584, a water pump 585, a gas conveying pipe I6, a gas purification mechanism 7, a purification box body 71, a liquid discharge pipe 72 and a liquid discharge valve 73, the device comprises a liquid medicine pipe 74, a liquid medicine box 75, a piston 76, a mounting rod 77, an annular rack 78, a gear lack 79, a rotating shaft 710, a driven pulley 711, a belt 712, a driving pulley 713, a gas conveying pipe II 8, a dehumidifying mechanism 9, a dehumidifying box 91, an activated carbon layer 92, a gas detector 93, a gas return pipe I10, a gas return pipe II 11, a gas return pipe III 12, a control valve I13, a one-way exhaust valve 14, a one-way intake valve 15, a control valve II 16 and a control valve III 17.
Detailed Description
The invention will be further illustrated with reference to the following figures 1 to 7 and examples:
example 1
A purification and exhaust device for smoke of a steelmaking furnace comprises a device shell 3 connected with a steelmaking furnace 1 through a smoke exhaust pipe 2, wherein a cooling and smoke dust removing mechanism 5, a gas purification mechanism 7 and a dehumidification mechanism 9 are sequentially arranged in an inner cavity of the device shell 3 along the movement direction of the smoke;
the input end of the temperature-reducing and smoke-removing mechanism 5 is communicated with the smoke exhaust pipe 2 and is used for reducing the temperature of the smoke and removing particles mixed in the smoke;
the gas purification mechanism 7 is connected with the output end of the temperature-reducing and smoke-removing mechanism 5 through a gas delivery pipe I6 and is used for purifying harmful gas in the flue gas;
the dehumidifying mechanism 9 is connected with the output end of the gas purifying mechanism 7 through a gas conveying pipe II 8 and is used for removing moisture in the flue gas, and the output end of the dehumidifying mechanism 9 is provided with an exhaust pipe 4 extending to the outer cavity of the device shell 3;
install one-way admission valve 15 on the pipe 2 of discharging fume, install one-way discharge valve 14 on the blast pipe 4, install control flap II 16 on the gas-supply pipe I6, install control flap III 17 on the gas-supply pipe II 8.
In the embodiment, the flue gas generated by the steel-making furnace 1 sequentially passes through the smoke exhaust pipe 2 and enters the cooling and smoke dust removing mechanism 5 for cooling and removing particles included in the flue gas; the gas enters a gas purification mechanism 7 through a gas transmission pipe I6 to purify harmful gas in the flue gas; the flue gas enters a dehumidifying mechanism 9 through a gas conveying pipe II 8 to remove moisture in the flue gas; and the gas detector 93 arranged in the dehumidification mechanism 9 is matched, and the detected gas is discharged through the exhaust pipe 4 after meeting the emission standard, so that the whole process of purifying the smoke of the steel making furnace 1 is completed.
In the embodiment, as shown in fig. 4, the temperature-reducing and smoke-removing mechanism 5 includes a tank 51 and a motor frame 53 mounted at the lower end of the tank 51 through a bracket 52, the motor frame 53 is fixedly mounted on the inner bottom wall of the device housing 3, a stirring impeller 55 is rotatably mounted at the lower part of the inner cavity of the tank 51, the lower shaft end of the stirring impeller 55 extends to the bottom wall of the tank 51 and the top wall of the motor frame 53 in sequence and is mounted on the output end of a driving motor 54, the driving motor 54 is mounted on the inner bottom wall of the motor frame 53, a drain pipe 56 is mounted on the bottom wall of the tank 51 in a penetrating manner, the other end of the drain pipe 56 extends to the outer cavity of the device housing 3 and is mounted with a drain valve 57, a smoke-removing assembly 58 is arranged at the upper part of the inner cavity of the tank 51, low-temperature cooling water, gaseous cooling can be realized through the cooling water to the flue gas, and simultaneously, the partial granule in the flue gas can also be taken away to microthermal cooling water, improves the cooling and removes the smoke and dust effect, and driving motor 54 starts, drives impeller 55 and rotates, and the cooling water is stirred, guarantees the cooling effect, and the smoke and dust subassembly 58 that removes on the inner chamber upper portion of jar body 51 simultaneously can further get rid of the surplus granule in the flue gas, improves and removes the smoke and dust effect.
In this embodiment, as shown in fig. 4, smoke abatement subassembly 58 includes the spray pipe network 582 of fixed mounting on the internal roof of jar 51, and the lower extreme that sprays pipe network 582 installs the shower nozzle 583 that a plurality of equidistance set up, spray and install inlet tube 584 on the input of pipe network 582, and the input of inlet tube 584 extends to the exocoel of device shell 3 and is connected with external water source, install water pump 585 on the inlet tube 584, water pump 585 starts, input external water source and loop through inlet tube 584 and get into in the spray pipe network 582, and spout through a plurality of shower nozzles 583 that spray the pipe network 582 lower extreme, improve the smoke abatement effect, guarantee the environmental protection of flue gas and discharge.
In this embodiment, as shown in fig. 4, the smoke and dust removing assembly 58 further includes a table-shaped gas collecting cylinder 581 disposed below the spraying pipe network 582, and the table-shaped gas collecting cylinder 581 is fixedly mounted on the inner wall of the tank 51, so as to effectively collect smoke and ensure spraying smoke and dust removing effect.
In this embodiment, as shown in fig. 5, the gas purification mechanism 7 includes a purification box 71, a liquid discharge pipe 72 is installed at the lower end of the purification box 71, an output end of the liquid discharge pipe 72 extends to the outer cavity of the device housing 3 and is installed with a liquid discharge valve 73, a drug liquid pipe 74 is inserted into the side wall of the purification box 71, the other end of the drug liquid pipe 74 is installed on the side wall of the drug liquid tank 75 in a penetrating manner, the drug liquid tank 75 is installed on the bottom wall of the device housing 3, a piston 76 is installed in the inner cavity of the drug liquid tank 75 in a sliding manner, an installation rod 77 is vertically installed on the side wall of the piston 76, the other end of the installation rod 77 extends to the outer cavity of the drug liquid tank 75 and is installed on an annular rack 78, two sets of parallel teeth inside the annular rack 78 are alternately engaged with a gear-lacking wheel 79, a rotation shaft 710 is inserted into the middle part of the gear-lacking wheel 79, a driven, and the driving pulley 713 is fixedly installed at the output end of the driving motor 54, when the driving motor 54 is started, the driven pulley 711, the belt 712 and the driving pulley 713 are combined to drive the gear 79 to rotate, the gear 79 alternately engages with two groups of parallel teeth inside the annular rack 78, the piston 76 is driven by the installation rod 77 to slide back and forth in the inner cavity of the liquid medicine box 75, so that the liquid medicine contained in the liquid medicine box 75 is pushed to enter the purifying box body 71 through the liquid medicine pipe 74, it can be understood that the output end of the liquid medicine pipe 74 is of an atomizing nozzle structure, so that the liquid medicine and the flue gas are fully combined, harmful components in the flue gas are removed, and meanwhile, due to the arrangement of the liquid discharge pipe 72 and the liquid discharge valve 73, the liquid medicine adsorbed with the harmful components can be effectively discharged, and the harmful gases in the flue gas are continuously removed.
In this embodiment, as shown in fig. 6, the dehumidification mechanism 9 includes the dehumidification box 91, and the inner chamber middle part horizontal installation of the dehumidification box 91 has an activated carbon layer 92, and the gaseous detector 93 is installed to the lateral wall lower part of the dehumidification box 91, and the sense terminal of gaseous detector 93 extends to the inner chamber of the dehumidification box 91, and the activated carbon layer 92 can effectually absorb the steam in the flue gas, can further adsorb granule and toxic component in the flue gas simultaneously, improves the purification quality of flue gas greatly.
In this embodiment, the valves mentioned above are all electromagnetic valves, the electromagnetic valves are industrial devices controlled by electromagnetism, are automatic basic elements for controlling fluid, belong to actuators, are not limited to hydraulic pressure and pneumatic pressure, and can be matched with different circuits to realize expected control, and the precision and flexibility of control can be ensured.
In this embodiment, (not shown in the figure) further includes a control mechanism, which can be a combination of a human-computer interaction control panel and a PLC controller, and is used for controlling the opening and closing of the one-way exhaust valve 14, the one-way intake valve 15, the control valve ii 16 and the control valve iii 17; the device is also used for controlling the starting and stopping of the driving motor 54 so as to cool the flue gas; and for controlling the opening and closing of the drain valve 57 and the drain valve 73 for replacing and discharging the sewage.
Example 2
The difference between this embodiment and embodiment 1 is that, as shown in fig. 3 and 6, an air return pipe i 10, an air return pipe ii 11, and an air return pipe iii 12 are sequentially connected to the lower portion of the rear wall of the dehumidifying box 91 through from top to bottom, control valves i 13 are installed on the air return pipe i 10, the air return pipe ii 11, and the air return pipe iii 12, and the air return pipe i 10 is connected to the upper portion of the rear wall of the dehumidifying box 91 through.
In this embodiment, combine figures 3 and 4, muffler II 11 and cooling smoke and dust removing mechanism 5 through connection, combine figures 3 and 5, muffler III 12 and gaseous purification mechanism 7 through connection, through muffler I10, muffler II 11 and muffler III 12, cooperate gaseous detector 93 to detect the flue gas after purifying, when unqualified, open control valve I13 on the corresponding muffler, carry back to and carry and repurify in the corresponding mechanism to guarantee the thorough purification of flue gas.
Other undescribed structures refer to example 1.
According to the purification and exhaust device for the smoke of the steelmaking furnace in the embodiment of the invention, with reference to the attached figure 7, namely the flow structure block diagram of the invention, the smoke generated by the steelmaking furnace 1 sequentially passes through the smoke exhaust pipe 2 to enter the cooling and smoke removing mechanism 5 for cooling and removing the particles included in the smoke; the gas enters a gas purification mechanism 7 through a gas transmission pipe I6 to purify harmful gas in the flue gas; the flue gas enters a dehumidifying mechanism 9 through a gas conveying pipe II 8 to remove moisture in the flue gas; and the gas detector 93 arranged in the dehumidification mechanism 9 is matched, and after the detected gas meets the emission standard, the detected gas is discharged through the exhaust pipe 4, so that the smoke of the steel making furnace can be effectively purified, and the atmospheric environment is protected.
The embodiments of the present invention are disclosed as the preferred embodiments, but not limited thereto, and those skilled in the art can easily understand the spirit of the present invention and make various extensions and changes without departing from the spirit of the present invention.
Claims (9)
1. A purification and exhaust device for smoke of a steelmaking furnace comprises a device shell connected with the steelmaking furnace through a smoke exhaust pipe, and is characterized in that a cooling and smoke dust removing mechanism, a gas purification mechanism and a dehumidification mechanism are sequentially arranged in an inner cavity of the device shell along the movement direction of the smoke;
the input end of the temperature-reducing and smoke-dust-removing mechanism is communicated with the smoke exhaust pipe and is used for reducing the temperature of the smoke and removing particles mixed in the smoke;
the gas purification mechanism is connected with the output end of the temperature-reducing and smoke-removing mechanism through a gas pipe I and is used for purifying harmful gas in the smoke;
the dehumidification mechanism is connected with the output end of the gas purification mechanism through a gas pipe II and used for removing moisture in the flue gas, and an exhaust pipe extending to the outer cavity of the device shell is arranged on the output end of the dehumidification mechanism;
the smoke exhaust pipe is provided with a one-way air inlet valve, the exhaust pipe is provided with a one-way exhaust valve, the gas pipe I is provided with a control valve II, and the gas pipe II is provided with a control valve III.
2. The apparatus for purifying exhaust gases from a steelmaking furnace as claimed in claim 1, wherein: the cooling smoke and dust removing mechanism comprises a tank body and a motor frame arranged at the lower end of the tank body through a support, the motor frame is fixedly arranged on the inner bottom wall of the device shell, the lower part of the inner cavity of the tank body is rotatably provided with a stirring impeller, the lower shaft end of the stirring impeller extends to the bottom wall of the tank body and the top wall of the motor frame which sequentially run through the tank body and is arranged at the output end of a driving motor, the driving motor is arranged on the inner bottom wall of the motor frame, a drain pipe is arranged on the bottom wall of the tank body in a penetrating way, the other end of the drain pipe extends to the outer cavity of the device.
3. The purification and exhaust device for steelmaking furnace flue gas as recited in claim 2, wherein: the smoke and dust removal subassembly includes that fixed mounting sprays the pipe network on the internal roof of jar, and the lower extreme that sprays the pipe network installs the shower nozzle that a plurality of equidistance set up, sprays and installs the inlet tube on the input of pipe network, and the input of inlet tube extends to the exocoel of device shell and is connected with external water source, installs the water pump on the inlet tube.
4. A purifying exhaust apparatus for steelmaking furnace flue gas as claimed in claim 3, wherein: the smoke and dust removing assembly further comprises a table-shaped gas collecting cylinder arranged below the spraying pipe network, and the table-shaped gas collecting cylinder is fixedly installed on the inner wall of the tank body.
5. The apparatus for purifying exhaust gases from a steelmaking furnace as claimed in claim 1, wherein: the gas purification mechanism is including purifying the box, and the lower extreme of purifying the box link up and install the fluid-discharge tube, and the output of fluid-discharge tube extends to the exocoel of device shell and installs the flowing back valve, it is equipped with the liquid medicine pipe to insert on purifying the lateral wall of box, and the other end of liquid medicine pipe link up and install on the lateral wall of liquid medicine case, and the liquid medicine case is installed on the diapire of device shell, the inner chamber slidable mounting of liquid medicine case has the piston, install the installation pole perpendicularly on the lateral wall of piston, and the other end of installation pole extends to the exocoel of liquid medicine case and installs on annular rack, two sets of parallel teeth inside the annular rack are engaged in turn and have scarce gear, the middle part of scarce gear is inserted and is equipped with the axis of rotation, and fixed cover is equipped with driven pulleys in the axis of rotation, driven.
6. The apparatus for purifying exhaust gases from a steelmaking furnace as claimed in claim 1, wherein: the dehumidification mechanism is including the dehumidification box, and the inner chamber middle part horizontal installation of dehumidification box has the active carbon layer, and the gaseous detector is installed to the lateral wall lower part of dehumidification box, and the sense terminal of gaseous detector extends to in the inner chamber of dehumidification box.
7. The apparatus for purifying exhaust gases from a steelmaking furnace as claimed in claim 6, wherein: the upper portion of the rear wall of the dehumidification box body is connected with a return pipe I, a return pipe II and a return pipe III in a penetrating mode from top to bottom, control valves I are installed on the return pipe I, the return pipe II and the return pipe III, and the return pipe I is connected with the upper portion of the rear wall of the dehumidification box body in a penetrating mode.
8. The apparatus for purifying exhaust gases from a steelmaking furnace as claimed in claim 7, wherein: the air return pipe II is communicated with the cooling smoke dust removing mechanism, and the air return pipe III is communicated with the gas purifying mechanism.
9. The apparatus for purifying exhaust gases from a steelmaking furnace as claimed in claim 1, wherein: the device also comprises a control mechanism which is used for controlling the opening and closing of the one-way exhaust valve, the one-way intake valve, the control valve II and the control valve III.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911410402.8A CN111167234A (en) | 2019-12-31 | 2019-12-31 | Purification and exhaust device for smoke of steelmaking furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911410402.8A CN111167234A (en) | 2019-12-31 | 2019-12-31 | Purification and exhaust device for smoke of steelmaking furnace |
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| CN111167234A true CN111167234A (en) | 2020-05-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911410402.8A Pending CN111167234A (en) | 2019-12-31 | 2019-12-31 | Purification and exhaust device for smoke of steelmaking furnace |
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| CN112791548A (en) * | 2020-12-31 | 2021-05-14 | 平煤神马建工集团有限公司 | Electromechanical engineering workshop environmental protection dust collector |
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| CN113351619A (en) * | 2021-05-24 | 2021-09-07 | 中国科学院过程工程研究所 | Controllable atmosphere composite dynamic pyrolysis device and waste material harmless treatment method based on same |
| CN114797368A (en) * | 2022-04-27 | 2022-07-29 | 苏州毕恩思实验器材有限公司 | Energy-saving laboratory is with exhaust gas purification equipment |
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