Biogas slurry and slag mixed reaction device
By designing a slag mixing reaction device for the slag mixing, the filtration and adsorption of the incinerator slag, combined with the spray tube to accelerate the escape of nitrogen, the problem of oil and fat in kitchen waste treatment affecting the microbial removal effect is solved, and efficient treatment and resource utilization are achieved.
Patent Information
- Application Number
- CN202421415367.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-20
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2034-06-20
AI Technical Summary
The oils in kitchen waste affect the microbial removal effect, resulting in complex processing technology and high investment, making it difficult to treat concentrates.
A slag mixing reaction device for slag is designed. Through the anaerobic reaction of incinerator slag and kitchen waste, the slag filtration and adsorption in the reaction chamber is used to reduce ammonia nitrogen and total nitrogen content, and the nitrogen escape is accelerated through the spray tube.
The effect of kitchen waste leachate treatment has been improved, the treatment cost has been reduced, the resource treatment methods of incinerator slag have been opened up, and the difficulty of processing the concentrate has been reduced through collaborative treatment.
Smart Images
Figure CN222684339U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of biogas slurry treatment equipment, in particular to a biogas slurry and slag mixing reaction device. Background Art
[0002] As the main means of treating domestic waste, waste incineration power generation occupies a very important position in the treatment of domestic waste. It is expected that by the end of the 14th Five-Year Plan, it will account for about 65% of domestic waste treatment. Slag is the main by-product of waste incineration power plants. It is the residue discharged after the incineration of domestic waste to generate electricity. The main components of incineration slag are silicon dioxide and aluminum oxide, etc. Its heavy metal leaching toxicity is low. It is a non-toxic general waste in my country and is mainly used to prepare cement, concrete, unburned bricks and roadbed materials. Domestic waste incineration slag has similar physical and chemical properties to natural aggregates. Its special physical structure can be used as an adsorbent for industrial filter materials and sewage treatment, and has good filtration and adsorption effects.
[0003] Kitchen waste has the characteristics of high water content. During the treatment process, a large amount of leachate with high organic content will be produced. The COD in the leachate often exceeds 120,000 mg / L, which is a high-concentration organic wastewater. The current treatment process mainly degrades the organic matter in the leachate by anaerobic fermentation. More than 90% of the organic matter can be removed by anaerobic fermentation of the leachate. The biogas slurry after anaerobic fermentation generally continues to undergo secondary anaerobic fermentation. After the COD in the water is reduced to below 500 mg / L, conventional water treatment is carried out, and then it is treated by membrane bioreactors and membrane deep reactors to meet the discharge standards. The cultivation and acclimatization cycle of membrane bioreactors is very long, and it is often affected by the instability of water inlet indicators and environmental indicators. The treatment effect is unstable, and it is easy to produce problems such as inhibition of deamination bacteria and difficulty in completely removing ammonia nitrogen. The grease in kitchen waste will affect the removal effect of microorganisms. The overall treatment process is complicated and the investment is high, and the concentrated liquid treatment is more difficult.
[0004] In view of the above problems, a biogas slurry and slag mixing reaction device is proposed. Utility Model Content
[0005] The utility model aims to provide a biogas slurry and slag mixing reaction device, which solves the problems in the background technology that grease in kitchen waste will affect the removal effect of microorganisms, the overall treatment process is complicated and the investment is high, and the concentrated liquid treatment is more difficult.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a biogas slurry-slag mixing reaction device, comprising a biogas slurry tank, a storage bin is arranged on the right side of the biogas slurry tank, a connecting pipe passes through and is fixedly connected to the bottom of the biogas slurry tank, a biogas slurry delivery pump passes through and is fixedly connected to the middle end of the connecting pipe, a delivery pipe is fixedly connected to the right side of the connecting pipe, and the delivery pipe passes through the storage bin, a control valve is fixedly connected to the outer wall of the delivery pipe, a discharge port is opened at the bottom of the delivery pipe, a reaction bin is arranged on the right side of the storage bin, an air pump is fixedly connected to the bottom of the left side of the reaction bin, and a delivery component is arranged on the left side of the storage bin.
[0007] By adopting the above technical solution, the biogas slurry in the biogas slurry tank is extracted by the biogas slurry delivery pump, and the biogas slurry is delivered to the bottom of the reaction chamber through the delivery pipe and the connecting pipe.
[0008] As a further description of the above technical solution: the conveying component includes a slag conveyor, the slag conveyor is fixedly connected to the storage bin, and a conveying pipe is fixedly connected to the top of the storage bin.
[0009] By adopting the above technical solution, the slag conveyor is single or multiple, and is arranged according to the size of the equipment. Preferably, a screw conveyor is used, which can ensure the airtightness of the equipment and can discharge the material after lifting it to a certain height.
[0010] As a further description of the above technical solution: reaction liquid outlets are provided at both the front and rear ends of the right side of the reaction chamber.
[0011] By adopting the above technical solution, the mixed reaction liquid in the reaction chamber is discharged from the reaction liquid outlet at the upper part of the reaction chamber to the collection device at the rear end.
[0012] As a further description of the above technical solution: a first motor is fixedly connected to the top of the right side of the reaction chamber, and a first auger is fixedly connected to the output end of the first motor.
[0013] By adopting the above technical solution, the slag in the reaction bin is transported to the upper end through the first auger.
[0014] As a further description of the above technical solution: a reaction slag outlet pipe is fixedly connected to the top of the right side of the reaction bin, and a discharge pipe is fixedly connected to the bottom of the reaction slag outlet pipe.
[0015] By adopting the above technical solution, the slag transported by the four first augers is output into one through the reaction slag outlet pipe.
[0016] As a further description of the above technical solution: the rear end of the discharge pipe is fixedly connected to a second motor, and the output end of the second motor is fixedly connected to a second auger.
[0017] By adopting the above technical solution, the slag is transported by the second auger, which facilitates material unloading.
[0018] As a further description of the above technical solution: a slag connecting pipe is fixedly connected to the bottom of the feed pipe and is fixedly connected to the inner wall of the reaction bin.
[0019] By adopting the above technical solution, the slag is poured into the reaction bin through the slag connecting pipe.
[0020] As a further description of the above technical solution: the air outlet end of the air pump is fixedly connected with a uniformly distributed spray pipe, and the spray pipe runs through the reaction chamber.
[0021] By adopting the above technical solution, the ammonia nitrogen and total nitrogen contents in the mixed reaction liquid are reduced through the air pump and the spray pipe.
[0022] Compared with the prior art, the beneficial effects of the utility model are as follows:
[0023] 1. The utility model provides a biogas slurry slag mixing reaction device, which first reduces the ammonia nitrogen and total nitrogen in the biogas slurry and improves the treatment effect of the kitchen waste leachate by mixing the incineration slag and the biogas slurry anaerobic treatment of kitchen waste; the reaction slag in the reaction chamber can be aerobic fermented to produce organic fertilizer, opening up a resource treatment method for the incineration slag; the incineration slag and biogas slurry are synergistically treated to reduce the treatment cost.
[0024] 2. The utility model provides a biogas slurry and slag mixing reaction device, through the bottom of the reaction chamber, the biogas slurry passes through the accumulated slag and then enters the reaction chamber, which not only ensures the uniformity of mixing with the slag, but also ensures that the entering biogas slurry is filtered and adsorbed by the accumulated slag to ensure the effect of the mixing reaction.
[0025] 3. The utility model provides a biogas slurry slag mixing reaction device, which can directly enter the lower part of the spray pipe when the incineration slag is fed, so as to prevent the slag from being lifted up during aeration to affect the mixing reaction of biogas slurry and slag, and ensure that the mixed reaction slag overflows from the mixed reaction liquid outlet to the collection equipment at the rear end as little as possible with the reaction liquid. The spray pipe is arranged in the middle and lower part of the reaction chamber. The spray pipe does not affect the mixing reaction effect of the bottom slag and biogas slurry, and can accelerate the escape of nitrogen in the mixed reaction liquid by passing air, thereby improving the effect of reducing ammonia nitrogen and total nitrogen in the mixed reaction liquid. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0027] Figure 2 It is a structural schematic diagram of the reaction chamber of the utility model.
[0028] In the figure: 1. biogas slurry tank; 2. biogas slurry delivery pump; 3. connecting pipe; 4. storage bin; 5. slag conveyor; 6. delivery pipe; 7. control valve; 8. delivery pipe; 9. discharge port; 10. slag connecting pipe; 11. reaction bin; 12. spraying pipe; 13. reaction liquid outlet; 14. first motor; 15. reaction slag outlet; 16. discharge pipe; 17. air pump; 18. second motor; 19. first auger; 20. second auger. DETAILED DESCRIPTION
[0029] The following will refer to the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0030] In order to further understand the content of the utility model, the utility model is described in detail with reference to the accompanying drawings.
[0031] Reference Figure 1 The utility model discloses a biogas slurry-slag mixing reaction device, comprising a biogas slurry tank 1. The biogas slurry produced by the anaerobic reactor is discharged into the biogas slurry tank 1 after pretreatment. The biogas slurry in the biogas slurry tank 1 is transported to the reaction chamber 11 by a biogas slurry delivery pump 2 through a connecting pipe 3, a delivery pipe 8 and a control valve 7. The biogas slurry delivery pump 2 is frequency-controlled to realize constant flow delivery of the biogas slurry. The delivery pipe 8 and the control valve 7 enter from the bottom of the reaction chamber 11. The delivery pipe 8 is downwardly connected to the biogas slurry inlet pipe of the reaction chamber 11 from a position flush with or higher than the top of the reaction chamber 11, so as to avoid the problem of liquid backflow in the reaction chamber 11. The biogas slurry tank A storage bin 4 is arranged on the right side of the biogas slurry tank 1, a connecting pipe 3 passes through and is fixedly connected to the bottom of the biogas slurry tank 1, a biogas slurry delivery pump 2 passes through and is fixedly connected to the middle end of the connecting pipe 3, a delivery pipe 8 is fixedly connected to the right side of the connecting pipe 3, and the delivery pipe 8 passes through the storage bin 4, a control valve 7 is fixedly connected to the outer wall of the delivery pipe 8, the biogas slurry of the biogas slurry delivery pump 2 enters the bottom of the reaction bin 11 through the biogas slurry inlet, and the incineration slag also enters the bottom of the reaction bin 11 along the slag inlet connecting pipe 10, a discharge port 9 is opened at the bottom of the delivery pipe 8, a reaction bin 11 is arranged on the right side of the storage bin 4, and an air pump 17 is fixedly connected to the bottom of the left side of the reaction bin 11.
[0032] Reference Figure 1 and Figure 2A conveying assembly is arranged on the left side of the storage bin 4, and the conveying assembly includes a slag conveyor 5, which is fixedly connected to the storage bin 4. A feeding pipe 6 is fixedly connected to the top of the storage bin 4. The burnt slag is transported to the upper part of the storage bin 4 by a transport vehicle, and then automatically unloaded into the storage bin 4. The slag in the storage bin 4 is transported to the reaction bin 11 by the slag conveyor 5 through the incineration slag discharge port 9. The inner wall of the storage bin 4 is inclined, and the incineration slag can automatically enter the inclined slag conveyor 5. The front and rear ends of the right side of the reaction bin 11 are provided with The reaction liquid outlet 13, the top right side of the reaction bin 11 is fixedly connected to a first motor 14, the output end of the first motor 14 is fixedly connected to a first auger 19, the top right side of the reaction bin 11 is fixedly connected to a reaction slag outlet pipe 15, the bottom of the reaction slag outlet pipe 15 is fixedly connected to a discharge pipe 16, the rear end of the discharge pipe 16 is fixedly connected to a second motor 18, the output end of the second motor 18 is fixedly connected to a second auger 20, the bottom of the feed pipe 6 is fixedly connected to a slag connecting pipe 10 and is fixedly connected to the inner wall of the reaction bin 11, and the air pump 17 is used to discharge air The end of the reactor 11 is fixedly connected with a uniformly distributed spray pipe 12, and the spray pipe 12 runs through the reaction chamber 11. The incineration slag and the biogas liquid can be fed according to the set ratio through the operation control of the biogas liquid delivery pump 2 and the slag conveyor 5. The actual operation ratio of the incineration slag and the biogas liquid is about 1:10. The biogas liquid and the incineration slag are mixed at the bottom of the reaction chamber 11. After the biogas liquid is filtered, adsorbed and reacted by the incineration slag, it overflows from the bottom to the top. The spray pipe 12 is arranged in the middle of the reaction chamber 11. The air generated by the air pump 17 passes through the spray pipe 12 and the mixed The mixed reaction liquid is mixed, and the biogas slurry is filtered and adsorbed by the incineration slag, and the mixed reaction liquid after the reaction is aerated to discharge the nitrogen produced by the nitrification reaction outside the reaction chamber 11, thereby reducing the ammonia nitrogen and total nitrogen content in the mixed reaction liquid. The bottom structure of the reaction chamber 11 is inclined, which is convenient for the incineration slag to enter the first auger 19 at the bottom, and is operated by the first motor 14. The activity of the mixed reaction slag is realized through continuous feeding and discharging, thereby ensuring the mixed reaction effect of the biogas slurry and the slag, and then solid-liquid separation and membrane treatment are carried out to meet the emission standards. The reaction slag of the reaction bin 11 is transported to the outside of the equipment by the first auger 19 and the first motor 14. The first auger 19 is arranged inclined. The incineration slag entering the reaction bin 11 gradually flows out and accumulates from the inside to the outside under the action of the biogas slurry. The external slag slides into the first auger 19 and the first motor 14, and then is lifted and transported to the outside of the reaction bin 11 by the first auger 19 and the first motor 14. The first auger 19 has one or more components, which connect the reaction slag outlet pipe 15 to the discharge pipe 16, and then are transported to the transport vehicle through the second motor 18 and the second auger 20. The mixed reaction slag can be transported out for aerobic fermentation to make organic fertilizer, or it can be recycled after roasting.
[0033] Working principle: The biogas in the biogas tank 1 is transported to the reaction bin 11 by the biogas delivery pump 2 through the connecting pipe 3, the delivery pipe 8 and the control valve 7. The biogas delivery pump 2 is frequency-controlled to realize the constant flow of biogas delivery. The delivery pipe 8 and the control valve 7 enter from the bottom of the reaction bin 11. The burnt slag is transported to the upper part of the storage bin 4 by the transport vehicle, and then automatically unloaded into the storage bin 4. The slag in the storage bin 4 is transported to the reaction bin 11 by the slag conveyor 5 through the incineration slag discharge port 9. The inner wall of the storage bin 4 is inclined, and the incineration slag can automatically enter the inclined slag conveyor 5. The incineration slag and biogas can be fed according to the set ratio through the operation control of the biogas delivery pump 2 and the slag conveyor 5. The actual operating ratio of slag and biogas slurry is about 1:10. The biogas slurry and the incineration slag are mixed at the bottom of the reaction bin 11. The biogas slurry overflows from the bottom to the top after being filtered, adsorbed and reacted by the incineration slag. The spray pipe 12 is arranged in the middle of the reaction bin 11. The air generated by the air pump 17 is mixed with the mixed reaction liquid through the spray pipe 12, so that the incineration slag can enter the first auger 19 at the bottom, and is operated by the first motor 14. The activity of the mixed reaction slag is achieved through continuous feeding and discharging, so as to ensure the mixed reaction effect of the biogas slurry and the slag. The mixed reaction liquid of the reaction bin 11 is discharged from the reaction liquid outlet 13 at the upper part of the reaction bin 11 to the collection equipment at the rear end, and then discharged after solid-liquid separation and membrane treatment. The reaction slag of the reaction bin 11 is transported to the outside of the equipment by the first auger 19 and the first motor 14. The first auger 19 is arranged inclined. The incineration slag entering the reaction bin 11 gradually flows out and accumulates from the inside to the outside under the action of the biogas slurry. The external slag slides into the first auger 19 and the first motor 14, and then is lifted and transported to the outside of the reaction bin 11 by the first auger 19 and the first motor 14. The reaction slag outlet pipe 15 is transferred to the discharge pipe 16, and then is transported to the transport vehicle through the second motor 18 and the second auger 20. The mixed reaction slag can be transported out for aerobic fermentation to produce organic fertilizer, or it can be recycled after roasting.
[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.
[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A biogas slurry-slag mixing reaction device, comprising a biogas slurry tank (1), characterized in that: A storage bin (4) is provided on the right side of the biogas slurry tank (1); a connecting pipe (3) passes through and is fixedly connected to the bottom of the biogas slurry tank (1); a biogas slurry delivery pump (2) passes through and is fixedly connected to the middle end of the connecting pipe (3); a delivery pipe (8) is fixedly connected to the right side of the connecting pipe (3); the delivery pipe (8) passes through the storage bin (4); a control valve (7) is fixedly connected to the outer wall of the delivery pipe (8); a discharge port (9) is provided at the bottom of the delivery pipe (8); a reaction bin (11) is provided on the right side of the storage bin (4); an air pump (17) is fixedly connected to the bottom of the left side of the reaction bin (11); and a delivery component is provided on the left side of the storage bin (4).
2. The biogas slurry-slag mixing reaction device according to claim 1, characterized in that: The conveying assembly comprises a slag conveyor (5), the slag conveyor (5) is fixedly connected to the storage bin (4), and a conveying pipe (6) is fixedly connected to the top of the storage bin (4).
3. The biogas slurry-slag mixing reaction device according to claim 1, characterized in that: The reaction chamber (11) is provided with reaction liquid outlets (13) at both the front and rear ends of the right side.
4. The biogas slurry-slag mixing reaction device according to claim 1, characterized in that: A first motor (14) is fixedly connected to the top of the right side of the reaction chamber (11), and a first auger (19) is fixedly connected to the output end of the first motor (14).
5. The biogas slurry-slag mixing reaction device according to claim 1, characterized in that: A reaction slag outlet pipe (15) is fixedly connected to the top of the right side of the reaction bin (11), and a discharge pipe (16) is fixedly connected to the bottom of the reaction slag outlet pipe (15).
6. The biogas slurry-slag mixing reaction device according to claim 5, characterized in that: The rear end of the discharge pipe (16) is fixedly connected to a second motor (18), and the output end of the second motor (18) is fixedly connected to a second auger (20).
7. The biogas slurry-slag mixing reaction device according to claim 2, characterized in that: The bottom of the feed pipe (6) is fixedly connected to a slag connecting pipe (10) which is fixedly connected to the inner wall of the reaction bin (11).
8. The biogas slurry-slag mixing reaction device according to claim 1, characterized in that: The air outlet end of the air pump (17) is fixedly connected to a uniformly distributed spray pipe (12), and the spray pipe (12) passes through the reaction chamber (11).