CN118651963B - A denitrification treatment device for kitchen waste biogas slurry - Google Patents
A denitrification treatment device for kitchen waste biogas slurry Download PDFInfo
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- CN118651963B CN118651963B CN202411112858.7A CN202411112858A CN118651963B CN 118651963 B CN118651963 B CN 118651963B CN 202411112858 A CN202411112858 A CN 202411112858A CN 118651963 B CN118651963 B CN 118651963B
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- 239000002002 slurry Substances 0.000 title claims abstract description 81
- 239000010806 kitchen waste Substances 0.000 title claims description 21
- 238000003756 stirring Methods 0.000 claims abstract description 93
- 238000005273 aeration Methods 0.000 claims abstract description 79
- 241001453382 Nitrosomonadales Species 0.000 claims abstract description 9
- 239000010794 food waste Substances 0.000 claims abstract 7
- 238000009423 ventilation Methods 0.000 claims description 38
- 239000000969 carrier Substances 0.000 abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 17
- 230000009471 action Effects 0.000 abstract description 3
- 230000000903 blocking effect Effects 0.000 abstract 1
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 30
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 18
- 229910002092 carbon dioxide Inorganic materials 0.000 description 15
- 239000001569 carbon dioxide Substances 0.000 description 15
- 239000007789 gas Substances 0.000 description 14
- 239000007788 liquid Substances 0.000 description 10
- 241000894006 Bacteria Species 0.000 description 9
- 229910021529 ammonia Inorganic materials 0.000 description 9
- 230000003647 oxidation Effects 0.000 description 9
- 238000007254 oxidation reaction Methods 0.000 description 9
- 238000007789 sealing Methods 0.000 description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 8
- 238000002347 injection Methods 0.000 description 7
- 239000007924 injection Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 238000005507 spraying Methods 0.000 description 7
- 238000009434 installation Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 5
- 238000005121 nitriding Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 235000013305 food Nutrition 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 3
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 3
- 239000010813 municipal solid waste Substances 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 3
- 239000010865 sewage Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 210000000988 bone and bone Anatomy 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 241001148471 unidentified anaerobic bacterium Species 0.000 description 2
- 241000233866 Fungi Species 0.000 description 1
- 241000287828 Gallus gallus Species 0.000 description 1
- 241001122767 Theaceae Species 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 210000003278 egg shell Anatomy 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000012851 eutrophication Methods 0.000 description 1
- 235000021190 leftovers Nutrition 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
- C02F3/2806—Anaerobic processes using solid supports for microorganisms
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
- C02F3/2866—Particular arrangements for anaerobic reactors
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
- C02F2101/166—Nitrites
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2203/00—Apparatus and plants for the biological treatment of water, waste water or sewage
- C02F2203/006—Apparatus and plants for the biological treatment of water, waste water or sewage details of construction, e.g. specially adapted seals, modules, connections
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Microbiology (AREA)
- Biodiversity & Conservation Biology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
本发明提供了一种餐厨余沼液的脱氮处理装置，包括筒体，筒体内设置有上下分布且相互平行的固定架，固定架上设置有多个相互平行且螺旋环绕的通气管进而形成螺旋框架，筒体内设置有搅拌组件，搅拌组件带动沼液在筒体内流动，载体在沼液流动的作用下在螺旋框架内移动，且为循环流动，以增加厌氧氨氧化菌对沼液的接触，进而使得厌氧氨氧化菌与沼液的充分反应，进而提高了氮化处理的效率，同时通过设置倾斜转动的曝气环，且曝气环内环壁上的喷气管倾斜，使得相邻载体之间形成阻挡作用的水膜进而减少了相邻载体之间的相互碰撞，且减少了载体与螺旋框架的碰撞，也就降低了载体损坏的可能性。
The present invention provides a denitrification treatment device for food waste biogas slurry, comprising a cylinder, a fixing frame distributed up and down and parallel to each other is arranged in the cylinder, a plurality of vent pipes parallel to each other and spirally surrounded are arranged on the fixing frame to form a spiral frame, a stirring component is arranged in the cylinder, the stirring component drives the biogas slurry to flow in the cylinder, and the carrier moves in the spiral frame under the action of the biogas slurry flow, and the flow is circulated to increase the contact of anaerobic ammonia oxidizing bacteria with the biogas slurry, so that the anaerobic ammonia oxidizing bacteria and the biogas slurry fully react, so as to improve the efficiency of the nitridation treatment, and at the same time, by arranging an aeration ring that rotates obliquely and the jet pipe on the inner ring wall of the aeration ring is inclined, a water film with a blocking effect is formed between adjacent carriers, so as to reduce the mutual collision between adjacent carriers, and reduce the collision between the carrier and the spiral frame, thereby reducing the possibility of damage to the carrier.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to a denitrification treatment device for kitchen waste biogas slurry.
Background
Kitchen waste refers to waste generated in activities such as daily living and food processing, food service, unit food supply and the like of residents, and comprises discarded unused vegetable leaves, leftovers, pericarps, eggshells, tea residues, bones (chicken bones and fishbones) and the like, and the main sources are home kitchens, restaurants, canteens, markets and other industries related to food processing.
Anaerobic bacteria biological decomposition treatment is adopted when kitchen garbage is treated, the kitchen garbage is fermented into methane and residual materials through anaerobic bacteria, the residual materials are subjected to slag-liquid separation to obtain methane liquid, and if the methane liquid is not treated, water eutrophication can be caused when the high nitrogen content in the methane liquid is discharged to the environment, so that environmental pollution is caused, and the kitchen garbage can be discharged after further denitrification treatment.
The denitrification treatment can adopt biological denitrification technology, such as anaerobic ammonia oxidation, which directly converts ammonia nitrogen and nitrite into nitrogen under anaerobic conditions, is an efficient and low-energy-consumption denitrification method, but the existing anaerobic ammonia oxidation device has the following problems:
firstly, anaerobic ammonia oxidizing bacteria are insufficiently contacted with sewage, so that the reaction effect is poor;
secondly, under the stirring effect, the carrier bearing the anaerobic ammonia oxidation bacteria is easy to damage.
Disclosure of Invention
In view of the above, it is necessary to provide a denitrification device for kitchen waste biogas slurry, which solves the problems that the denitrification reaction effect is poor and the carrier is easily damaged in the existing denitrification process.
The above purpose is achieved by the following technical scheme:
A denitrification treatment device for kitchen waste biogas slurry, comprising:
The device comprises a cylinder body, wherein fixing frames which are distributed up and down and are parallel to each other are fixedly arranged in the cylinder body, a plurality of vent pipes are arranged on each fixing frame, the vent pipes are parallel to each other and spirally surround each other, a spiral frame is formed among the vent pipes, the spiral frame is uniformly coiled outwards from the center, the starting ends and the tail ends of the spiral frames on the two fixing frames are mutually communicated, and a carrier is arranged in the spiral frame and is used for carrying anammox bacteria;
The aeration assembly comprises an aeration ring and a connecting ring, wherein the connecting ring is uniformly arranged on a plurality of vent pipes at intervals, the aeration ring is nested in the connecting ring, the inner part of the aeration ring is communicated with the inside of the spiral frame, the inner part of the aeration ring is hollow and is communicated with the plurality of vent pipes, a plurality of air injection pipes are arranged on the inner wall of the aeration ring, and the air injection pipes inject air into the spiral frame so that the carrier is positioned at the center of the spiral frame;
and the stirring assembly is used for stirring biogas slurry in the cylinder body, and the biogas slurry flows to drive the carrier to move in the spiral frame.
Further, the aeration ring and the connecting ring are assembled in a rotary sealing way, blades are uniformly distributed on the periphery of the aeration ring, and biogas liquid in the cylinder flows to push the blades so as to drive the aeration ring to rotate around the axis of the aeration ring.
Furthermore, the aeration ring is assembled with the connecting ring in an inclined way, an included angle is formed between the axis of the aeration ring and the axis of the connecting ring, and the air ejector pipes on the inner wall of the aeration ring are obliquely arranged along the same rotation direction so as to blow the carrier to rotate around the axis of the aeration ring.
Further, a plurality of ventilation grooves are formed in the two end faces of the aeration ring, a plurality of ventilation holes are formed in the inner end face of the connecting ring, and the ventilation grooves are communicated with the ventilation holes.
Further, an air inlet pipe is arranged on the cylinder body and communicated with the air pipe.
Further, the stirring assembly comprises a stirring motor and a stirring paddle, wherein the stirring motor is fixedly arranged on the shell, and a rotating shaft of the stirring motor is connected with the stirring paddle.
Further, the periphery of the fixing frame is provided with a rotating ring, the end face of the rotating ring is provided with a plurality of stirring plates, the inclined distribution direction of the stirring plates is the same as the inclined distribution direction of stirring blades of the stirring paddles, and the rotating direction of the rotating ring is opposite to the rotating direction of the stirring paddles.
Further, a first rotating wheel is fixedly arranged on a rotating shaft of the stirring motor, a second rotating wheel is rotationally arranged on the cylinder body, the second rotating wheel is meshed with the inner periphery of the rotating ring, the first rotating wheel is meshed with the second rotating wheel, and the second rotating wheel drives the rotating ring to rotate.
Further, a plurality of fixing frames are arranged in the cylinder body, and two fixing frames are combined into a group.
Further, a supporting frame is arranged at the bottom of the cylinder body.
The beneficial effects of the invention are as follows:
According to the invention, the spiral frame is arranged, so that the carrier filled with the anaerobic ammonia oxidation bacteria circularly flows in the spiral frame to increase the contact of the anaerobic ammonia oxidation bacteria to the biogas slurry, so that the anaerobic ammonia oxidation bacteria fully react with the biogas slurry, and the nitriding treatment efficiency is improved.
According to the invention, the rotary aeration ring is arranged, so that larger carbon dioxide bubbles can be changed into smaller bubbles, and the larger bubbles are prevented from taking residues in biogas slurry away in the rising process.
According to the invention, the stirring paddles and the stirring plates with opposite rotation directions are arranged, so that biogas slurry in the cylinder body is billowed from inside to outside and from top to bottom, and the uniformity of distribution of biogas slurry components is further improved.
According to the invention, the aeration ring is obliquely arranged on the connecting ring, and the air injection pipe on the inner wall of the aeration ring is obliquely arranged, so that the carrier passing through the inner ring of the aeration ring rotates around the axis of the aeration ring, and further, a water film which is blocked mutually is formed between two adjacent carriers, so that the mutual collision between the adjacent carriers is reduced, the collision between the carriers and the spiral frame is reduced, and the possibility of damaging the carriers is reduced.
Drawings
FIG. 1 is a schematic diagram of a denitrification treatment apparatus for kitchen waste biogas slurry according to an embodiment of the present invention;
FIG. 2 is a left side view of a denitrification treatment apparatus for kitchen waste biogas slurry according to an embodiment of FIG. 1;
FIG. 3 is a cross-sectional view of a denitrification treatment apparatus for kitchen waste biogas slurry along A-A according to one embodiment of FIG. 2;
FIG. 4 is a schematic view showing an internal structure of a removal cylinder of a denitrification treatment apparatus for kitchen waste biogas slurry according to an embodiment of the present invention;
FIG. 5 is an exploded view of a denitrification treatment apparatus for kitchen waste biogas slurry according to one embodiment of FIG. 4;
FIG. 6 is an exploded view of a mounting bracket structure of a denitrification treatment apparatus for kitchen waste biogas slurry according to an embodiment of the present invention;
FIG. 7 is a schematic structural view of a single fixing frame of a denitrification treatment device for kitchen waste biogas slurry according to an embodiment of the invention;
FIG. 8 is a cross-sectional view of a single holder of the denitrification treatment apparatus for kitchen waste biogas slurry provided in an embodiment in FIG. 7;
FIG. 9 is an enlarged view of a portion X of a denitrification treatment apparatus for kitchen waste biogas slurry according to an embodiment of FIG. 8;
FIG. 10 is a schematic structural view of a connecting ring and a vent pipe of a denitrification treatment device for kitchen waste biogas slurry according to an embodiment of the present invention;
FIG. 11 is a cross-sectional view of a connecting ring and a vent pipe of a denitrification treatment apparatus for kitchen waste biogas slurry provided in an embodiment of FIG. 10;
FIG. 12 is a view showing the structure of an aeration ring of a denitrification apparatus for kitchen waste biogas slurry according to an embodiment of the present invention.
Wherein:
100. 110 parts of cylinder, 120 parts of water inlet, 120 parts of water outlet, 130 parts of air inlet pipe, 140 parts of end cover, 141 parts of air outlet, 142 parts of annular groove, 150 parts of carrier, 160 parts of support frame;
200. the device comprises a fixing frame, 210, a vent pipe, 211, a fixing rod, 220, a first connecting pipe, 230, a second connecting pipe, 240, a starting end, 250 and a tail end;
300. Aeration assembly 310, aeration ring 311, aeration tank 312, blade 313, gas jet pipe 320, connecting ring 321, inner end face 322, vent hole 323, sealing protrusion 330, aeration ring 331, first through hole 332, second through hole;
400. 410, rotating shaft;
500. stirring assembly, 510, stirring motor, 520, stirring paddle, 521, stirring blade, 530, first rotating wheel;
600. the rotary ring 610, the stirring plate 620, the connecting rod 630 and the second rotary wheel.
Detailed Description
The present invention will be further described in detail below with reference to examples, which are provided to illustrate the objects, technical solutions and advantages of the present invention. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The numbering of components herein, such as "first," "second," etc., is used merely to distinguish between the described objects and does not have any sequential or technical meaning. The term "coupled" as used herein includes both direct and indirect coupling (coupling), unless otherwise indicated. In the description of the present application, it should be understood that the terms "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 application and simplifying the description, and do not indicate or imply that the device or element in question must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.
In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
The application provides a denitrification treatment device for kitchen waste biogas slurry, which is described below with reference to fig. 1-12.
The utility model provides a denitrification treatment device of kitchen surplus biogas slurry, is applicable to the denitrification treatment to sewage, is particularly useful for the denitrification treatment of kitchen surplus biogas slurry, includes barrel 100, and barrel 100 top is provided with end cover 140, and end cover 140 is used for sealed barrel 100, is provided with water inlet 110 and delivery port 120 on the lateral wall of barrel 100, and water inlet 110 is located the below of delivery port 120, and the biogas slurry lets in barrel 100 through water inlet 110, and the biogas slurry is discharged from delivery port 120 after carrying out the denitrification treatment in barrel 100.
The cylinder 100 is internally provided with fixing frames 200 which are vertically distributed and parallel to each other, each fixing frame 200 is provided with a plurality of mutually parallel and spirally surrounding ventilation pipes 210, and for convenience in fixing, in this embodiment, the ventilation pipes 210 are fixed on the fixing frames 200 by adopting fixing rods 211, four ventilation pipes 210 are shared in this embodiment, a spiral frame is formed between the four ventilation pipes 210, as shown in fig. 7 and 8, and the starting ends 240 and the tail ends 250 of the spiral frames on the upper fixing frame 200 and the lower fixing frame 200 are mutually communicated. For convenience of connection, the starting ends 240 of the spiral frames of the upper and lower fixing frames 200 are connected by the first connection pipe 220, and the end 250 of the spiral frame of the upper and lower fixing frames 200 is connected by the second connection pipe 230, i.e., the spiral frames of the upper and lower fixing frames 200 are connected as a whole. The spiral frame is internally filled with a carrier 150, the carrier 150 is a spherical frame, the carrier 150 is internally filled with anammox bacteria, and the anammox bacteria are used for directly converting ammonia nitrogen and nitrite in biogas slurry into nitrogen, so that denitrification treatment is completed.
The anaerobic ammonia oxidation bacteria need to provide a carbon source to directly convert ammonia nitrogen and nitrite into nitrogen, so an aeration assembly 300 is further arranged in the cylinder 100 and is used for providing the carbon source in the cylinder 100, specifically, carbon dioxide gas is introduced into the cylinder 100 as the carbon source. The aeration assembly 300 comprises an aeration ring 310 and a connecting ring 320, wherein the connecting ring 320 is uniformly arranged on the aeration pipe 210 at intervals, the inner ring of the connecting ring 320 is communicated with a spiral frame, the aeration ring 310 is nested in the connecting ring 320, the inner ring of the aeration ring 310 is also communicated with the inside of the spiral frame, a plurality of air injection pipes 313 are uniformly arranged on the inner ring wall of the aeration ring 310, the air injection pipes 313 are communicated with the aeration pipe 210, carbon dioxide introduced into the aeration pipe 210 enters the spiral frame through the air injection pipes 313, and a carrier 150 is arranged in the spiral frame, so that a carbon source is provided for anaerobic ammonia oxidizing bacteria in the carrier 150. Meanwhile, the plurality of air injection pipes 313 inject air so that the carrier 150 is positioned at the center of the spiral frame while being in the spiral frame, i.e., the collision of the carrier 150 with the spiral frame during the movement process, i.e., the collision of the carrier 150 with the ventilation pipe 210 is reduced, thereby reducing the possibility of damage to the carrier 150.
Be provided with stirring subassembly 500 in barrel 100, stirring subassembly 500 is used for stirring the natural pond liquid for the composition distribution in the natural pond liquid is even, and stirring subassembly 500 rotates along a direction and makes carrier 150 in the natural pond liquid can drive spiral frame remove along spiral frame, and carrier 150 is constantly circulated at spiral frame, and the spiral frame of specifically follow the top removes the spiral frame of below, removes the top from the below again, and cyclic reciprocation, thereby makes carrier 150 and the contact of natural pond liquid more abundant, makes the anaerobic ammonia oxidation fungus in the carrier 150 more abundant with the reaction of natural pond liquid, has improved the efficiency of nitriding treatment.
For example, if the stirring assembly 500 inside the drum 100 rotates the biogas slurry clockwise, the carrier 150 in the spiral frame on the upper fixing frame 200 is driven by the biogas slurry to rotate clockwise, the carrier 150 enters the spiral frame of the lower fixing frame 200 through the second connecting pipe 230 after rotating from the central starting end 240 to the outer end 250 in the spiral frame, the carrier 150 rotates clockwise to the central starting end 240 in the outer end 250 of the spiral frame of the lower fixing frame 200, and reenters the spiral frame of the upper fixing frame 200 through the first connecting pipe 220 after reaching the central starting end 240, and the carrier 150 continuously circulates, so that the carrier 150 continuously moves in the spiral frame to improve the reaction efficiency of anaerobic ammonia oxidizing bacteria and the biogas slurry in the carrier 150.
In a further embodiment, the aeration ring 310 is rotatably assembled on the connection ring 320 and is in sealing connection with the connection ring 320, that is, the aeration ring 310 can rotate on the connection ring 320, specifically, the blades 312 are disposed on the periphery of the aeration ring 310, specifically, as shown in fig. 12, when the stirring assembly 500 stirs the biogas slurry, the biogas slurry will stir the blades 312, so as to drive the aeration ring 310 to rotate.
It should be noted that, when the aeration ring 310 rotates, carbon dioxide bubbles can be broken up, and large carbon dioxide bubbles are changed into smaller bubbles, so that larger bubbles are prevented from taking residues in biogas slurry away in the rising process. When the carbon dioxide gas is sprayed out from the gas spraying pipe 313, most of the carbon dioxide gas is absorbed by anaerobic ammonia oxidation bacteria in the carrier 150, and a small part of the carbon dioxide gas escapes from the spiral frame, so that the situation can be avoided, and the escaped bubbles are broken into small bubbles through the rotating aeration ring 310, so that the situation can be reduced.
Specifically, the end cover 140 in this embodiment is provided with an air outlet 141, and after the small bubbles float out of the biogas slurry, the air in the small bubbles is discharged through the air outlet 141.
In a further embodiment, the aeration ring 310 is assembled with the connection ring 320 in an inclined manner, the axis of the connection ring 320 forms an included angle with the axis of the aeration ring 310, and the gas nozzles 313 provided on the inner circumferential wall of the aeration ring 310 are all inclined in the same rotation direction, so that when the gas sprayed from the gas nozzles 313 acts on the spherical carrier 150, the spherical carrier 150 rotates around the axis of the aeration ring 310, and when the spherical carrier 150 rotates, the surrounding biogas slurry is driven to rotate to form a partial water film, as shown in fig. 11, the carrier 150 in the middle rotates around the axis of the aeration ring 310 by the water spraying action of the water spraying pipes, the rotation centers of the carriers 150 on both sides are the same, as shown by the dotted line in fig. 11, but due to the different positions of the three carriers 150, the rotation directions of the parts of the three carriers 150 that are close to each other are opposite, that is, the rotation directions of the water film forming surfaces are opposite, that is, assuming that the rotational directions of the three carriers 150 are preset directions (the preset directions refer to clockwise rotation about the axis of the air ring 310 as seen from left to right as shown in fig. 11), the portions of the left carrier 150 and the intermediate carrier 150 adjacent to each other are the lower half portion of the left carrier 150 about the rotational center as the dividing line and the upper half portion of the intermediate carrier 150 about the rotational center as the dividing line, respectively, and the entire rotational directions are the same, but the portions adjacent to each other are the lower portion and the upper portion, respectively, and the moving directions of the portions adjacent to each other are opposite (the moving directions of the upper and lower portions are opposite when the same carrier 150 rotates about the rotational center as the dividing line, the moving directions of the upper and lower portions adjacent to each other may be analogous to the upper and lower portions of the entire, respectively), the water films of the two serve as barriers, thereby reducing the collision between adjacent carriers 150 and further reducing the possibility of damage. Similarly, the portions of the middle carrier 150 and the right carrier 150 that are adjacent to each other are also the same, and will not be described again.
Specifically, in order to facilitate the communication between the aeration ring 310 and the connection ring 320, a plurality of ventilation slots 311 are formed on two end surfaces of the aeration ring 310, a plurality of ventilation holes 322 are formed on an inner end surface 321 of the connection ring 320, the size of the ventilation holes 322 is smaller than that of the ventilation slots 311, sealing protrusions 323 are further arranged on the inner end surface 321 of the connection ring 320, sealing recesses (not shown in the figure) are arranged on two end surfaces of the aeration ring 310, the sealing recesses on the aeration ring 310 are in sealing fit with the sealing protrusions 323 on the connection ring 320, so that rotary sealing is achieved, and when the aeration ring 310 rotates, the ventilation slots 311 of the aeration ring 310 are always communicated with the ventilation holes 322 on the inner end surface 321 of the connection ring 320, and the connection ring 320 is communicated with the ventilation pipe 210, so that gas in the ventilation pipe 210 enters the aeration ring 310 and is ejected from the gas ejecting pipe 313 of the aeration ring 310.
More specifically, the cylinder 100 is provided with an air inlet pipe 130, the air inlet pipe 130 is communicated with the air pipe 210, specifically, is communicated with the air pipe 210 at the tail end 250 of the spiral frame, an air ventilation ring 330 is fixedly arranged at one end of a connecting ring 320 at the tail end 250 of the spiral frame, the air ventilation ring 330 is hollow, a first through hole 331 is formed in the periphery of the air ventilation ring 330, four second through holes 332 are formed in one end of the air ventilation ring 330, which is fixedly connected with the connecting ring 320, the four second through holes 332 are respectively communicated with the four air pipes 210, and the first through holes 331 are communicated with an external pipeline for providing carbon dioxide, so that the supply of carbon dioxide is realized.
It should be noted that, in the present embodiment, the inner ring of the connecting ring 320 at the start end 240 of the four ventilation pipes 210 forming the spiral frame is connected to one end of the first connecting pipe 220, while the other end of the first connecting pipe 220 is connected to the inner ring of the connecting ring 320 at the start end 240 of the four ventilation pipes 210 on the other fixing frame 200, and similarly, the inner ring of the connecting ring 320 at the end 250 of the four ventilation pipes 210 is connected to one end of the second connecting pipe 230, while the other end of the second connecting pipe 230 is connected to the inner ring of the connecting ring 320 at the end 250 of the four ventilation pipes 210 on the other fixing frame 200, so that the carrier 150 moves in the two spiral frames.
In a further embodiment, the stirring assembly 500 includes a stirring motor 510 and a stirring paddle 520, the stirring motor 510 is fixedly disposed on the barrel 100, and specifically is fixed on the end cover 140 of the barrel 100, and the stirring paddle 520 is fixedly disposed on a rotating shaft of the stirring motor 510, the stirring motor 510 drives the stirring paddle 520 to rotate, and the stirring paddle 520 drives the biogas slurry to rotate, so that components in the biogas slurry are uniformly distributed.
Of course, the stirring assembly 500 is not limited to the above structure, and other stirring structures may be used.
In a further embodiment, a rotating ring 600 is further disposed inside the barrel 100, the rotating ring 600 is rotatably disposed on the outer periphery of the fixing frame 200, stirring plates 610 are disposed on the rotating ring 600, the distribution of the stirring plates 610 is the same as that of the stirring sheets 521 of the stirring paddles 520, that is, the inclination direction of the stirring plates 610 is the same as that of the stirring sheets 521 of the stirring paddles 520, when the rotation direction of the stirring paddles 520 is opposite to that of the rotating ring 600, the stirring plates 610 of the rotating ring 600 drive the biogas slurry on the inner side to move upwards clockwise, and then the stirring plates 610 of the rotating ring 600 drive the biogas slurry on the outer side to move downwards anticlockwise, so that the biogas slurry in the barrel 100 is turned over from inside to outside, and uniformity of distribution of biogas slurry components is further improved.
Specifically, the stirring plates 610 of the present application are connected by the connecting rods 620, as shown in fig. 4 and 5, a plurality of connecting rods 620 are fixedly connected to the lower end surface of the rotating ring 600, the connecting rods 620 are perpendicular to the lower end surface of the rotating ring 600, two stirring plates 610 are fixedly connected to each connecting rod 620, the inclination direction of each stirring plate 610 is identical to the stirring blade 521 of the stirring paddle 520, that is, when the rotating ring 600 and the stirring paddle 520 rotate in the same direction, the stirring blade 521 of the stirring paddle 520 and the stirring plate 610 act on biogas slurry in the same direction. When the rotating ring 600 rotates reversely, biogas slurry can be driven reversely.
More specifically, the first rotating wheel 530 is fixedly arranged on the rotating shaft of the stirring motor 510, the second rotating wheel 630 is rotatably arranged in the cylinder 100, the second rotating wheel 630 is meshed with the inner periphery of the rotating ring 600, the first rotating wheel 530 is meshed with the second rotating wheel 630, when the stirring motor 510 drives the stirring paddle 520 to rotate, the first rotating wheel 530 is driven to rotate at the same time, the first rotating wheel 530 drives the second rotating wheel 630 to rotate, the second rotating wheel 630 drives the rotating ring 600 to rotate, and the rotating direction of the rotating ring 600 is opposite to the rotating direction of the stirring paddle 520 through the transmission of the first rotating wheel 530 and the second rotating wheel 630, so that the biogas slurry in the cylinder 100 is turned over from inside to outside.
It should be noted that, in order to facilitate the second rotating wheel 630 to rotate and be disposed in the barrel 100, an installation cage 400 is fixedly disposed in the barrel 100, and the sidewall and the bottom of the installation cage 400 can both enable the biogas slurry to pass through, so as not to block the flow of the biogas slurry. The fixing frame 200 is fixedly arranged in the mounting cage 400, the rotating ring 600 is rotatably arranged outside the mounting cage 400, the mounting cage 400 is provided with a rotating shaft 410, the second rotating wheel 630 is rotatably arranged on the rotating shaft 410, the lower end surface of the end cover 140 of the cylinder 100 is provided with the annular groove 142, the rotating ring 600 is rotatably arranged in the annular groove 142, and the inner periphery of the rotating ring 600, the second rotating wheel 630 and the first rotating wheel 530 are all positioned on the same plane, so that the transmission function is realized.
The structure in which the rotation directions of the stirring paddle 520 and the rotation ring 600 are opposite is not limited to the above structure, but may be other structures, and the structure capable of realizing the above functions is not particularly limited.
In a further embodiment, the fixing frames 200 of the present application have four fixing frames, two by two pairs, but of course, the fixing frames may have even numbers of six, eight, etc., the number of carriers 150 in the cylinder 100 is increased, and the efficiency of nitriding biogas slurry is further improved.
In a further embodiment, a supporting frame 160 is provided at the bottom of the barrel 100, and the supporting frame 160 is used for supporting the barrel 100, so as to avoid the unstable condition of the barrel 100.
The specific working process of the denitrification treatment device for kitchen waste biogas slurry provided by the application is described by combining the embodiments:
starting:
the biogas slurry is introduced into the cylinder 100 through the water inlet 110, the stirring motor 510 is started, and simultaneously, carbon dioxide gas is introduced into the air inlet pipe 130.
The stirring motor 510 drives the stirring paddle 520 to rotate, taking clockwise rotation as an example, the stirring paddle 520 drives the biogas slurry in the installation cage 400 to rotate clockwise, and the stirring paddle 520 tilts to enable the biogas slurry in the installation cage 400 to move upwards, meanwhile, the stirring motor 510 drives the first rotating wheel 530 to rotate clockwise, the first rotating wheel 530 drives the second rotating wheel 630 to rotate anticlockwise, and the second rotating wheel 630 is meshed with the inner circumferential surface of the rotating ring 600, so that the second rotating wheel 630 drives the rotating ring 600 to rotate anticlockwise, the rotating ring 600 rotates anticlockwise to drive the stirring plate 610 to rotate anticlockwise, and the stirring plate 610 rotates anticlockwise and moves downwards when the stirring plate 610 tilts to be identical with the stirring piece 521 of the stirring paddle 520, so that the biogas slurry in the barrel 100 is turned over from inside to outside, and the uniformity of the distribution of the biogas slurry components is improved.
The carriers 150 are driven by the biogas slurry to circularly move in the spiral frames on the fixing frames 200 of one group, specifically, the carriers 150 in the spiral frames on the fixing frames 200 above are driven by the biogas slurry to rotate clockwise, the carriers 150 enter the spiral frames of the fixing frames 200 below through the second connecting pipes 230 after rotating from the starting end 240 of the center to the tail end 250 of the outer side in the spiral frames, the carriers 150 rotate clockwise to the starting end 240 of the center at the tail end 250 of the spiral frames of the fixing frames 200 below and reenter the spiral frames of the fixing frames 200 above through the first connecting pipes 220 after reaching the starting end 240 of the center, and the carriers 150 continuously circulate, so that the carriers 150 continuously move in the spiral frames to improve the reaction efficiency of anaerobic ammonia oxidizing bacteria and the biogas slurry in the carriers 150.
Because the fixing frame 200 is located inside the installation cage 400, biogas slurry inside the installation cage 400 rotates clockwise to drive the spiral frame formed by the four ventilation pipes 210 to move clockwise, and simultaneously, the biogas slurry also pushes the blades 312 on the aeration ring 310 to drive the aeration ring 310 to rotate, carbon dioxide enters into the aeration ring 330 through the air inlet pipe 130, enters into the four ventilation pipes 210 through the aeration ring 330 and enters into the aeration ring 310 through the ventilation pipes 210, and finally is sprayed out through the air spraying pipes 313 on the aeration ring 310, carbon dioxide acts on the carriers 150, anaerobic ammonia oxidizing bacteria in the carriers 150 absorb carbon sources to react with the biogas slurry, and simultaneously, the carbon dioxide acts on the carriers 150 when sprayed on the carriers 150, and because the air spraying pipes 313 are obliquely arranged, as shown in 12, and meanwhile, the axis of the aeration ring 310 and the axis of the connection ring 320 are inclined, so that the carriers 150 rotate around the axis of the aeration ring 310 under the action of gas spraying, and the water film between two adjacent carriers 150 can block the carriers 150 from each other, so that the possibility of damaging the carriers 150 is reduced. And the rotation of the aeration ring 310 can break up carbon dioxide bubbles sprayed out through the gas spraying pipe 313, so that larger bubbles are prevented from taking residues in the biogas slurry away in the rising process, and the uniformity of the distribution of the components of the biogas slurry is affected.
The biogas slurry is discharged through the water outlet after being subjected to nitriding treatment of anaerobic ammonia oxidizing bacteria on the carrier 150, and the water inlet 110 is continuously introduced, so that continuous nitriding treatment of the biogas slurry is realized.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples merely represent a few embodiments of the present invention, which are described in more detail and are not to be construed as limiting the scope of the present invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of the invention should be assessed as that of the appended claims.
Claims (7)
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| CN105948233A (en) * | 2016-06-25 | 2016-09-21 | 赖柱彭 | Sewage treatment equipment |
| CN208933068U (en) * | 2018-09-11 | 2019-06-04 | 嘉兴市天伦纳米染整有限公司 | A kind of high-efficiency sewage processing aeration tank |
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Effective date of registration: 20250313 Address after: Room 1104, Zone W, 11th Floor, Building 1, No. 158 Shuanglian Road, Qingpu District, Shanghai, May 2017 Patentee after: Beiwei Water Environment Technology (Shanghai) Co.,Ltd. Country or region after: China Address before: No. 357 Nanzhutang Road, Wushan Street, Wangcheng District, Changsha City, Hunan Province, 410200 Patentee before: HUNAN FRUTIGER MECHANICAL EQUIPMENT Co.,Ltd. Country or region before: China |