CN218089106U - Kitchen waste slurry anaerobic treatment system - Google Patents
Kitchen waste slurry anaerobic treatment system Download PDFInfo
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- CN218089106U CN218089106U CN202222747463.7U CN202222747463U CN218089106U CN 218089106 U CN218089106 U CN 218089106U CN 202222747463 U CN202222747463 U CN 202222747463U CN 218089106 U CN218089106 U CN 218089106U
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- biogas
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- anaerobic fermentation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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Abstract
The utility model relates to a kitchen garbage thick liquid anaerobic treatment system, including thick liquid pipeline, hydrolysis acidification tank, anaerobic fermentation tank, catch water, dry-type desulfurizing tower, marsh gas package and natural pond liquid pond, the thick liquid in the hydrolysis acidification tank is carried to a plurality of anaerobic fermentation tank that sets up side by side respectively through thick liquid feed pump package, and the marsh gas at anaerobic fermentation tank top passes through biogas pipeline and carries to the marsh gas package through catch water and dry-type desulfurizing tower in proper order, and the natural pond liquid that anaerobic fermentation tank is close to the top passes through the natural pond liquid pipeline and carries to the natural pond liquid pond in. The biogas liquid pool is added on the basis of the anaerobic fermentation tank and the biogas bag, so that the development and utilization of biogas resources can be improved, the biogas generated after anaerobic fermentation is subjected to dehydration treatment of a steam-water separator and purification treatment of a desulfurizing tower partially enters the biogas bag, and the biogas can be subsequently stored in a fire cabinet or used for power plant power generation through a power plant boiler conveying pipeline.
Description
Technical Field
The utility model relates to a kitchen garbage correlation technique field especially relates to a kitchen garbage thick liquid anaerobic treatment system.
Background
The kitchen waste refers to food residues, waste grease, overdue food and the like generated in the processes of food processing, food service and dining in units such as hotels, dining halls of enterprises and public institutions, school dining halls and the like. The kitchen waste contains a large amount of pathogens of zoonosis infectious diseases, which not only easily causes cross infection of animals, but also easily causes diseases caused by infection of human bodies with viruses such as foot-and-mouth disease, hepatitis and the like. Anaerobic treatment of concentrated water in kitchen waste leachate is an important link.
Through the massive search, the prior art is found to be CN210394348U, and discloses a kitchen waste anaerobic treatment device which comprises at least two anaerobic tanks and a circulating device arranged between the at least two anaerobic tanks, wherein the circulating device is used for introducing biogas slurry in one anaerobic tank into the other anaerobic tank. According to the anaerobic treatment device for kitchen waste, two or more anaerobic tanks are arranged, when one fermentation tank is acidified, by introducing biogas slurry in the anaerobic tank which normally operates into the anaerobic tank which abnormally operates, a large amount of methanogenic bacteria in fresh biogas slurry in the anaerobic tank which normally operates can timely digest VFAs accumulated in the anaerobic tank which abnormally operates, so that a system gradually returns to normal; the temperature of the replaced biogas slurry is basically consistent with the system problem, the impact of the temperature on an anaerobic system is reduced, and the recovery effect is obvious. The influence of the process on normal operation of kitchen treatment is low, and meanwhile, the production cost is solved without the help of external materials, and the economic benefit is improved.
In summary, the anaerobic treatment in the prior art is usually performed by using an anaerobic tank and a biogas storage tank, so that the utilization efficiency of biogas resources is low during anaerobic fermentation, and the heat exchange function during anaerobic treatment is poor.
In view of the above-mentioned defects, the present inventors have made active research and innovation to create an anaerobic treatment system for kitchen waste slurry, which has industrial value.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model aims at providing a kitchen garbage thick liquid anaerobic treatment system.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a kitchen garbage thick liquid anaerobic treatment system, including thick liquid pipeline, hydrolysis acidification tank, anaerobic fermentation jar, catch water, dry-type desulfurizing tower, marsh gas package and natural pond liquid pond, thick liquid among the thick liquid pipeline passes through the thick liquid pipeline and pumps respectively to a plurality of hydrolysis acidification tank that sets up side by side in, thick liquid among the hydrolysis acidification tank is carried respectively to a plurality of anaerobic fermentation jar that sets up side by side through thick liquid feed pump package, the marsh gas at anaerobic fermentation tank top passes through the marsh gas pipeline and in proper order through catch water and dry-type desulfurizing tower carry to the marsh gas package, the natural pond liquid that anaerobic fermentation jar is close to the top is carried to the marsh liquid pond through the natural pond liquid pipeline in, the natural pond liquid in the natural pond liquid passes through screw pump package and carries to the centrifugal dehydrator after static mixer, static mixer is connected with medicine system.
As the utility model discloses a further improvement still includes the cooling circulation system who is connected with the hydrolytic acidification jar, and cooling circulation system includes cooling water pool and cooling tower, and the thick liquid in the hydrolytic acidification jar passes through thick liquid circulating line and thick liquid circulating pump group and carries to the cooling water pool in, and the cooling water in the cooling water pool passes through cooling water circulating line and cooling water circulating pump group and carries to the hydrolytic acidification jar in.
As a further improvement of the utility model, the slurry circulating pipeline and the cooling water circulating pipeline are respectively connected with the plate heat exchanger.
As a further improvement of the utility model, the marsh gas in the marsh gas bag is respectively conveyed to the fire cabinet and the power plant boiler conveying pipeline through the fan.
As a further improvement, the anaerobic fermentation tank system further comprises a circulating heating system connected with the anaerobic fermentation tank, the circulating heating system comprises a hot water storage tank, the hot water storage tank is connected with the anaerobic fermentation tank through a hot water circulating pump set and a water inlet circulating pipeline, and the anaerobic fermentation tank is connected with the hot water storage tank through a water outlet circulating pipeline.
As a further improvement of the utility model, the hot water storage pool exchanges heat with the external boiler heat exchange pipeline group.
As a further improvement, the middle part of the anaerobic fermentation tank is provided with a vertical stirrer, the two sides of the anaerobic fermentation tank close to the bottom are provided with side stirrers, and the bottom of the anaerobic fermentation tank is provided with a sludge pump.
As a further improvement, the utility model also comprises an industrial water pipeline which is respectively connected with the cooling water pool and the dosing system.
Borrow by above-mentioned scheme, the utility model discloses at least, have following advantage:
1. the biogas liquid pool is added on the basis of the anaerobic fermentation tank and the biogas bag, so that the development and utilization of biogas resources can be improved, biogas generated after anaerobic fermentation is subjected to dehydration treatment by a vapor-water separator and purification treatment by a desulfurizing tower partially enters the biogas bag, and then can be stored in a fire cabinet or used for power generation of a power plant through a power plant boiler conveying pipeline;
2. the anaerobic fermentation tank can be subjected to cyclic heating treatment through the connection structure arrangement of the cyclic heating system connected with the anaerobic fermentation tank, and the hot water storage pool can exchange heat with an external boiler heat exchange pipeline group;
3. through the structural arrangement of the cooling circulation system connected with the hydrolysis acidification tank, the temperature of the slurry before anaerobic treatment can be regulated, and the condition of advanced fermentation treatment can be avoided to a certain extent.
The anaerobic treatment mode in the prior art is generally processed by equipment of an anaerobic tank and a methane storage tank, the utilization efficiency of methane resources in the anaerobic fermentation process is low, and the heat exchange function in the anaerobic treatment is poor.
The above description is only an outline of the technical solution of the present invention, and in order to make the technical means of the present invention more clearly understood and to be implemented in accordance with the content of the specification, the following detailed description will be given of preferred embodiments of the present invention in conjunction with the accompanying drawings.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic structural view of the anaerobic treatment system for kitchen waste slurry of the present invention;
wherein the meanings of each reference numeral in the figures are as follows.
1. Slurry conveying pipeline 2 hydrolysis acidification tank
3. Cooling water pool 4 industrial water pipeline
5. Cooling tower 6 slurry circulating pipeline
7. Slurry feed line 8 slurry feed pump package
9. Cooling water ring pump set of cooling water conveying pipeline 10
11. 12 slurry circulating pump set of plate heat exchanger
13. Slurry conveying pipeline 14 anaerobic fermentation tank
15. 16-side stirrer of vertical stirrer
17. Sludge pump 18 biogas pipeline
19. Steam-water separator 20 dry-type desulfurizing tower
21. Biogas bag 22 fan
23. 24 power plant boiler conveying pipelines of fire cabinet
25. Water inlet circulation pipeline 26 and water outlet circulation pipeline
27. Hot water circulating pump set 28 hot water storage pool
29. 30 biogas slurry pipelines of boiler heat exchange pipeline group
31. 32 screw pump set of biogas liquid pool
33. Medicine feeding system 34 medicine feeding pipeline
35. Static mixer 36 centrifugal dehydrator
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
In order to make the technical solution of the present invention better understood, the technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.
Examples
As shown in figure 1 of the drawings, in which,
the utility model provides a kitchen garbage thick liquid anaerobic treatment system, including thick liquid pipeline 1, hydrolysis acidification tank 2, anaerobic fermentation tank 14, catch water 19, dry-type desulfurizing tower 20, marsh gas package 21 and natural pond liquid pond 31, the thick liquid in thick liquid pipeline 1 is pumped to a plurality of hydrolysis acidification tank 2 that set up side by side respectively through the thick liquid pipeline, the thick liquid in hydrolysis acidification tank 2 is carried to a plurality of anaerobic fermentation tank 14 that set up side by side respectively through thick liquid feed pump package 8, the marsh gas at anaerobic fermentation tank 14 top passes through marsh gas pipeline 18 and carries to marsh gas package 21 through catch water 19 and dry-type desulfurizing tower 20 in proper order, the marsh gas in marsh gas package 21 is carried to fire cupboard 23 and power plant's boiler pipeline 24 respectively through fan 22.
The biogas slurry near the top of the anaerobic fermentation tank 14 is conveyed to a biogas slurry tank 31 through a biogas slurry pipeline 30, the biogas slurry in the biogas slurry tank 31 is conveyed to a centrifugal dehydrator 36 through a screw pump set 32 and a static mixer 35, and the static mixer 35 is connected with a dosing system 33. Wherein, medicine system 33 is PAM integration charge device, and the powdery flocculant in medicine system 33 adds and carries to centrifugal dehydrator 36 after mixing with the natural pond liquid in static mixer 35.
A cooling circulation system: the cooling circulation system comprises a cooling water pool 3 and a cooling tower 5, slurry in the hydrolysis acidification tank 2 is conveyed into the cooling water pool 3 through a slurry circulation pipeline 6 and a slurry circulation pump group 12, cooling water in the cooling water pool 3 is conveyed into the hydrolysis acidification tank 2 through a cooling water circulation pipeline and a cooling water circulation pump group 10, and the slurry circulation pipeline 6 and the cooling water circulation pipeline are respectively connected with the plate heat exchanger 11.
A circulation heating system: the circulation heating system comprises a hot water storage tank 28, the hot water storage tank 28 is connected with the anaerobic fermentation tank 14 through a hot water circulation pump group 27 and a water inlet circulation pipeline 25, the anaerobic fermentation tank 14 is connected with the hot water storage tank 28 through a water outlet circulation pipeline 26, and the hot water storage tank 28 exchanges heat with an external boiler heat exchange pipeline group 29.
The stirring mechanism of the anaerobic fermentation tank 14 is characterized in that a vertical stirrer 15 is arranged in the middle of the anaerobic fermentation tank 14, side stirrers 16 are arranged on two sides of the anaerobic fermentation tank 14 close to the bottom, and a sludge pump 17 is arranged at the bottom of the anaerobic fermentation tank 14.
The industrial water pipeline 4 is respectively connected with the cooling water tank 3 and the dosing system 33, and water resources are supplemented to the industrial water pipeline.
The process flow and the description of the utility model are as follows:
front end preliminary treatment meal kitchen thick liquids direct pump goes into hydrolysis-acidification tank 2, the utility model discloses set up two of 320m3 hydrolysis-acidification tank (phi 7.64m 7.2 m) of effective volume, supplied materials temperature about 70 ℃, fall through cooling tower about 37 ℃ with built-in cooling coil's mode cooling, hydrolysis-acidification temperature 35 ~ 40 ℃ is most suitable, and dwell time is 3d.
Then pumping into an anaerobic fermentation tank 14, the utility model discloses set up 3000m 3 Two anaerobic tanks are arranged, the residence time in the anaerobic stage is 35d, the reaction temperature is 37 +/-1 ℃, the medium-temperature anaerobic fermentation is carried out, and the design of the anaerobic tanks can ensure the switching of the medium-temperature anaerobic fermentation in the later period.
The material after anaerobic fermentation is pumped into a biogas liquid pool 31, and the effective volume of the project is set to be 170m 3 And (3) setting the retention time of the biogas slurry pool 1 for 1d, conveying the biogas residues and the biogas slurry to a horizontal centrifugal dehydrator 36 through a feed pump for solid-liquid separation, and burning the separated biogas residues and burying the same. The separated biogas slurry can be conveyed to a biogas slurry temporary storage tank and then enters a sewage treatment system for treatment and standard discharge.
The marsh gas enters a subsequent marsh gas purification system, namely a steam-water separator 19 and a dry desulfurizing tower 20 and then is conveyed into a marsh gas bag 21. The anaerobic system supplies heat to the anaerobic area in a combined mode of a hot water storage pool, a hot water circulating pump and a coil pipe arranged in a tank body, and a heat source is steam self-produced by a methane steam boiler.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly referring to the number of technical features being indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected" and "connected" are to be construed broadly, and may be, for example, a fixed connection, a detachable connection, or an integral connection: either mechanically or electrically: the terms may be directly connected or indirectly connected through an intermediate medium, or may be a communication between two elements.
The above description is only a preferred embodiment of the present invention, and should not be used to limit the present invention, it should be noted that, for those skilled in the art, without departing from the technical principle of the present invention, a plurality of improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.
Claims (8)
1. The kitchen waste serous fluid anaerobic treatment system comprises a serous fluid conveying pipeline (1), a hydrolysis acidification tank (2), an anaerobic fermentation tank (14), a steam-water separator (19), a dry desulfurization tower (20), a biogas bag (21) and a biogas slurry pool (31), and is characterized in that serous fluid in the serous fluid conveying pipeline (1) is respectively pumped into a plurality of hydrolysis acidification tanks (2) which are arranged in parallel through serous fluid pipelines, serous fluid in the hydrolysis acidification tanks (2) is respectively conveyed into a plurality of anaerobic fermentation tanks (14) which are arranged in parallel through serous fluid feed pump sets (8), biogas at the tops of the anaerobic fermentation tanks (14) is conveyed into the biogas bag (21) through biogas pipelines (18) and sequentially through the steam-water separator (19) and the dry desulfurization tower (20), biogas slurry close to the tops of the anaerobic fermentation tanks (14) is conveyed into the biogas slurry pool (31) through the biogas slurry (30), biogas slurry in the biogas slurry pool (31) is conveyed into the centrifugal chemical adding and dewatering machine (36) through a screw pump set (32) and after passing through a mixer (35), and the static chemical adding and dewatering machine (33) is connected with the static chemical adding and dewatering machine (33).
2. The kitchen waste slurry anaerobic treatment system according to claim 1, further comprising a cooling circulation system connected with the hydrolysis acidification tank (2), wherein the cooling circulation system comprises a cooling water tank (3) and a cooling tower (5), slurry in the hydrolysis acidification tank (2) is conveyed to the cooling water tank (3) through a slurry circulation pipeline (6) and a slurry circulation pump set (12), and cooling water in the cooling water tank (3) is conveyed to the hydrolysis acidification tank (2) through a cooling water circulation pipeline and a cooling water circulation pump set (10).
3. The anaerobic slurry treatment system for kitchen waste according to claim 2, characterized in that said slurry circulation pipeline (6) and said cooling water circulation pipeline are connected to plate heat exchanger (11), respectively.
4. The anaerobic treatment system for kitchen waste slurry, according to claim 1, characterized in that the biogas in the biogas bag (21) is delivered to the fire box (23) and the power plant boiler delivery pipe (24) by the blower (22).
5. The anaerobic kitchen waste slurry treatment system according to claim 1, further comprising a circulating heating system connected with the anaerobic fermentation tank (14), wherein the circulating heating system comprises a hot water reservoir (28), the hot water reservoir (28) is connected with the anaerobic fermentation tank (14) through a hot water circulating pump group (27) and a water inlet circulating pipeline (25), and the anaerobic fermentation tank (14) is connected with the hot water reservoir (28) through a water outlet circulating pipeline (26).
6. The anaerobic treatment system for kitchen waste slurry, according to claim 5, characterized in that said hot water reservoir (28) is in heat exchange with an external boiler heat exchange tube bank (29).
7. The anaerobic kitchen waste slurry treatment system according to claim 1, characterized in that a vertical stirrer (15) is arranged in the middle of the anaerobic fermentation tank (14), side stirrers (16) are arranged on both sides of the anaerobic fermentation tank (14) close to the bottom, and a sludge discharge pump (17) is arranged at the bottom of the anaerobic fermentation tank (14).
8. The anaerobic treatment system for kitchen waste slurry according to claim 1, characterized by further comprising an industrial water pipeline (4), wherein the industrial water pipeline (4) is respectively connected with the cooling water tank (3) and the dosing system (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222747463.7U CN218089106U (en) | 2022-10-19 | 2022-10-19 | Kitchen waste slurry anaerobic treatment system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222747463.7U CN218089106U (en) | 2022-10-19 | 2022-10-19 | Kitchen waste slurry anaerobic treatment system |
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| CN218089106U true CN218089106U (en) | 2022-12-20 |
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| CN202222747463.7U Active CN218089106U (en) | 2022-10-19 | 2022-10-19 | Kitchen waste slurry anaerobic treatment system |
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| CN (1) | CN218089106U (en) |
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