CN113105996A - Hydraulic and pneumatic linkage flotation kitchen waste anaerobic fermentation treatment system - Google Patents
Hydraulic and pneumatic linkage flotation kitchen waste anaerobic fermentation treatment system Download PDFInfo
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- CN113105996A CN113105996A CN202110260118.8A CN202110260118A CN113105996A CN 113105996 A CN113105996 A CN 113105996A CN 202110260118 A CN202110260118 A CN 202110260118A CN 113105996 A CN113105996 A CN 113105996A
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M21/00—Bioreactors or fermenters specially adapted for specific uses
- C12M21/04—Bioreactors or fermenters specially adapted for specific uses for producing gas, e.g. biogas
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M33/00—Means for introduction, transport, positioning, extraction, harvesting, peeling or sampling of biological material in or from the apparatus
- C12M33/04—Means for introduction, transport, positioning, extraction, harvesting, peeling or sampling of biological material in or from the apparatus by injection or suction, e.g. using pipettes, syringes, needles
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- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M45/00—Means for pre-treatment of biological substances
- C12M45/02—Means for pre-treatment of biological substances by mechanical forces; Stirring; Trituration; Comminuting
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M45/00—Means for pre-treatment of biological substances
- C12M45/04—Phase separators; Separation of non fermentable material; Fractionation
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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 invention discloses a hydraulic and pneumatic linkage kitchen waste flotation anaerobic fermentation treatment system which comprises a filter sieve, kitchen waste pretreatment equipment, a slurry separator and an anaerobic tank, wherein the filter sieve is arranged in the kitchen waste pretreatment equipment; the kitchen waste pretreatment equipment comprises a kitchen waste storage bin and a light substance kitchen waste mixing bin, wherein a hot water spray pipe is arranged on the inner side wall of the kitchen waste storage bin; the side wall of the light-substance kitchen waste mixing bin is provided with a light impurity discharge port, an aeration device is arranged in the light-substance kitchen waste mixing bin, the bottom of the light-substance kitchen waste mixing bin is provided with an organic waste discharge port, a slurry storage tank is arranged below the organic waste discharge port, the slurry storage tank is communicated with the feed end of a slurry separator, and the discharge end of the slurry separator is communicated with the feed end of an anaerobic tank. The hydraulic and pneumatic linkage flotation kitchen waste anaerobic fermentation treatment system is high in integration degree, achieves grading removal of impurities, improves the impurity removal effect of kitchen waste, and ensures stability of gas production.
Description
Technical Field
The invention relates to the technical field of kitchen waste treatment, in particular to a hydraulic and pneumatic linkage kitchen waste flotation anaerobic fermentation treatment system.
Background
The traditional kitchen waste treatment process generally adopts an anaerobic fermentation process for treatment except incineration so as to improve the comprehensive utilization rate of the kitchen waste. At present, in the process of treating kitchen waste through an anaerobic fermentation process, a great amount of light substances, heavy substances and the like enter an anaerobic reactor (anaerobic tank) due to poor impurity removal effect of pretreatment, a series of hazards are brought to the process of producing methane at the rear end, and the stability of gas production is influenced.
In order to solve the problems, the prior art is researched correspondingly, for example, a Chinese patent with application number 201710557316.4 discloses an anaerobic fermentation process for rural kitchen waste, which discloses the technical characteristics of sorting and removing impurities from the kitchen waste before anaerobic fermentation treatment; if chinese patent application No. 201920228871.7 discloses a kitchen garbage and mud combined anaerobic fermentation system marsh gas comprehensive utilization system, it discloses the technical feature of carrying out the letter sorting edulcoration to kitchen garbage through kitchen garbage sorting device, these prior art have disclosed the notion of carrying out the preliminary treatment edulcoration to kitchen garbage, nevertheless have following drawback: impurities cannot be removed in a grading manner, and the impurity removal effect is relatively poor.
In addition, the existing anaerobic fermentation treatment system has a large number of devices and low integration degree, which can increase the failure rate and influence the convenience of maintenance to a certain extent.
Disclosure of Invention
In view of the above, the invention aims to provide a hydraulic and pneumatic linkage flotation anaerobic fermentation treatment system for kitchen waste, so as to improve the integration degree of equipment, improve the impurity removal effect on the kitchen waste and ensure the stability of gas production.
The invention solves the problems through the following technical means: a hydraulic and pneumatic linkage kitchen waste flotation anaerobic fermentation treatment system comprises a filter screen, kitchen waste pretreatment equipment, a slurry separator and an anaerobic tank, wherein one end of the filter screen is provided with a filter screen feed hopper, and the other end of the filter screen is provided with a filter screen discharge port; the kitchen waste pretreatment equipment comprises a kitchen waste storage bin and a light kitchen waste mixing bin which are arranged in parallel, wherein the kitchen waste storage bin and the light kitchen waste mixing bin are communicated at positions close to the top through an intermediate pipeline, a crusher and a heavy impurity discharge port are respectively arranged at the top and the bottom of the kitchen waste storage bin, a hot water spray pipe is arranged on the inner side wall of the kitchen waste storage bin, and a crusher feed port communicated with a filter screen discharge port is arranged at the top of the crusher; the device comprises a light substance kitchen waste mixing bin, an organic waste discharge port, a slurry storage pool, a slurry conveying structure and an anaerobic tank, wherein the light substance kitchen waste mixing bin is provided with a light impurity discharge port at a position close to the top of the side wall of the light substance kitchen waste mixing bin, an aeration device is arranged in the light substance kitchen waste mixing bin, the bottom of the light substance kitchen waste mixing bin is provided with the organic waste discharge port, the slurry storage pool is arranged below the organic waste discharge port, the slurry storage pool is communicated with the feed end of the slurry separator through the slurry conveying structure, and the discharge end of the slurry separator.
Further, the slurry conveying structure comprises a slurry lifting pump and a slurry discharging pipe.
Further, the anaerobic material conveying structure comprises an anaerobic material conveying pipe and an anaerobic material conveying pump.
The light impurity separator is characterized by further comprising a light impurity separator, wherein the feed end of the light impurity separator is communicated with a light impurity discharge hole through a light impurity discharge pipe, and a light impurity suction pump is arranged on the light impurity discharge pipe.
Further, heavy impurity screw conveyer is arranged at the heavy impurity discharge port, a heavy impurity screw conveyer collecting hopper is arranged at one end of the heavy impurity screw conveyer, and the heavy impurity screw conveyer collecting hopper is positioned below the heavy impurity discharge port.
And the oil collecting bin is communicated with the oil outlet ends of the slurry separator and the light impurity separator through an oil collecting pipeline.
Further, two inside walls that the kitchen garbage storehouse is relative all are provided with the hot water spray tube.
Furthermore, a plurality of injection branch pipes are arranged on the hot water injection pipe in parallel.
Furthermore, the spraying branch pipes on the hot water spraying pipes at two sides are arranged in a staggered manner.
Furthermore, the aeration device is arranged at the bottom of the light substance kitchen waste mixing bin and is a nano aeration air disc.
The invention has the beneficial effects that: the hydraulic and pneumatic linkage kitchen waste flotation anaerobic fermentation treatment system comprises a filter screen, kitchen waste pretreatment equipment, a slurry separator and an anaerobic tank; the kitchen waste pretreatment equipment comprises a kitchen waste storage bin and a light substance kitchen waste mixing bin, wherein a hot water spray pipe is arranged on the inner side wall of the kitchen waste storage bin; the side wall of the light-substance kitchen waste mixing bin is provided with a light impurity discharge port, an aeration device is arranged in the light-substance kitchen waste mixing bin, the bottom of the light-substance kitchen waste mixing bin is provided with an organic waste discharge port, a slurry storage tank is arranged below the organic waste discharge port, the slurry storage tank is communicated with the feed end of a slurry separator, and the discharge end of the slurry separator is communicated with the feed end of an anaerobic tank. The utility model provides a water conservancy strength linkage flotation kitchen garbage anaerobic fermentation processing system integrates the degree height, has realized getting rid of the grading of debris, has improved kitchen garbage's edulcoration effect, has ensured the stability of producing gas, and the benefit of this application still embodies in following aspect:
1. the functions of cooking, sand setting, slag removal and light impurity removal can be realized, the equipment flow is shortened, and possible fault points of the equipment are reduced;
2. the removal rate of light impurities and heavy impurities is improved through the hydraulic and pneumatic linkage flotation;
3. the separation effect on the residues in the kitchen waste is good, and the separation of light and heavy substances is realized by utilizing the principle of gravity stratification;
4. through hot water washing of the whole material, the kitchen waste grease retention rate in the washing liquid is high, and the oil extraction rate of subsequently extracting oil from the washing liquid is greatly improved.
Drawings
The invention is further described below with reference to the figures and examples.
Fig. 1 is a schematic structural view of a preferred embodiment of the present invention.
Detailed Description
The invention is explained in more detail below with reference to the figures and examples. The features and advantages of the present invention will become more apparent from the description. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments.
As shown in fig. 1, the hydraulic and pneumatic linkage flotation anaerobic fermentation treatment system for kitchen waste of the embodiment comprises a filter sieve 11, kitchen waste pretreatment equipment, a slurry separator 21, an anaerobic tank 24 and a light impurity separator 20, wherein one end of the filter sieve is provided with a filter sieve feed hopper 10, and the other end of the filter sieve is provided with a filter sieve discharge port 12.
Kitchen garbage pre treatment facility is including the kitchen garbage storehouse 5 and the mixed storehouse of light material kitchen garbage 7 that arrange side by side, kitchen garbage storehouse 5 and the mixed storehouse of light material kitchen garbage 7 are being close to the position at top and are being passed through intermediate pipeline 27 intercommunication, and 5 tops in kitchen garbage storehouse and bottom are provided with breaker 2 respectively and heavily mix discharge gate 4, the breaker top is provided with the breaker feed inlet 1 with filter sieve discharge gate 12 intercommunication.
Two inside walls that kitchen garbage warehouse 5 is relative all are provided with hot water spray tube 3, be provided with a plurality of injection branch pipes 28 on the hot water spray tube side by side, the injection branch pipe on the hot water spray tube of both sides staggers and arranges to improve the washing effect that sprays to kitchen garbage.
The light substance kitchen garbage mixing bin 7 lateral wall is provided with light miscellaneous discharge gate 6 near the position at top, is provided with aeration equipment 8 in the light substance kitchen garbage mixing bin, preferably, aeration equipment 8 sets up in light substance kitchen garbage mixing bin bottom, and aeration equipment 8 is nanometer aeration gas dish, light substance kitchen garbage mixing bin bottom is provided with organic waste discharge gate 9.
The crusher is characterized in that electric valves are arranged at the crusher feeding port 1, the heavy impurity discharging port 4, the organic garbage discharging port 9 and the light impurity discharging port 6.
A slurry storage tank 15 is arranged below the organic garbage discharge port 9, the slurry storage tank 15 is communicated with the feed end of a slurry separator 21 through a slurry conveying structure, and the discharge end of the slurry separator 21 is communicated with the feed end of an anaerobic tank 24 through an anaerobic material conveying structure. Specifically, the slurry conveying structure comprises a slurry lifting pump 16 and a slurry discharging pipe 17, wherein the slurry lifting pump 16 is arranged in a slurry storage tank 15, and the outlet of the slurry lifting pump 16 is communicated with the feed end of a slurry separator through the slurry discharging pipe 17; the anaerobic material conveying structure comprises an anaerobic material conveying pipe 22 and an anaerobic material conveying pump 23, one end of the anaerobic material conveying pipe 22 is communicated with the discharge end of the slurry separator 21, the other end of the anaerobic material conveying pipe is communicated with the feed end of the anaerobic tank 24, and the anaerobic material conveying pump 23 is arranged on the anaerobic material conveying pipe 22.
The light impurity separator 20 is provided with a light impurity discharge pipe 18, and a light impurity suction pump 19 is arranged on the light impurity discharge pipe 18.
The heavy impurity discharge port 4 is provided with a heavy impurity screw conveyor 13, one end of the heavy impurity screw conveyor 13 is provided with a heavy impurity screw conveyor collecting hopper 14, and the heavy impurity screw conveyor collecting hopper is positioned below the heavy impurity discharge port.
The separator also comprises an oil collecting bin 26, and the oil collecting bin 26 is communicated with the oil outlet ends of the slurry separator and the light and impurity separator through an oil collecting pipeline 25.
During specific work, the kitchen waste is screened by a filter screen to obtain large impurities, enters from a feed inlet of a crusher, is crushed by the crusher and enters a kitchen waste storage bin, external high-pressure hot water (usually the water temperature is 80-100 ℃) is introduced into a hot water spray pipe and is sprayed out from a spray branch pipe to spray and wash the crushed kitchen waste, the waste in the kitchen waste storage bin is divided into three layers under the actions of hot water washing and flotation, light impurities float on the upper layer, organic matters of the kitchen waste are in the middle layer, heavy impurities are in the lower layer, the heavy impurities are discharged from a heavy impurity discharge port under the action of gravity and are output by a heavy impurity spiral conveyor; under the action of hot water flotation, light impurities and kitchen waste organic matters flow into the light-substance kitchen waste mixing bin through the middle channel, the light impurities are aerated by the aeration device, the light impurities are brought to the upper layer of the light-substance kitchen waste mixing bin under the action of bubble flotation, then are discharged from a light impurity discharge port, are separated by the light impurity separator, the kitchen waste organic matter slurry is settled and is discharged from an organic waste discharge port, and is pumped by the slurry lifting pump and then enters the slurry separator for separation, and the separated anaerobic material is pumped to the anaerobic tank by the anaerobic material conveying pump for anaerobic fermentation treatment.
The oil separated by the light impurity separator and the slurry separator enters an oil collecting bin to be collected.
In conclusion, the hydraulic and pneumatic linkage flotation anaerobic fermentation treatment system for kitchen waste is high in integration degree, achieves grading removal of impurities, improves the impurity removal effect of the kitchen waste, and ensures the stability of gas production.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (10)
1. The utility model provides a water conservancy strength linkage flotation kitchen garbage anaerobic fermentation processing system which characterized in that: the device comprises a filter screen (11), kitchen waste pretreatment equipment, a slurry separator (21) and an anaerobic tank (24), wherein one end of the filter screen is provided with a filter screen feed hopper (10), and the other end of the filter screen is provided with a filter screen discharge hole (12); the kitchen waste pretreatment equipment comprises a kitchen waste storage bin (5) and a light kitchen waste mixing bin (7) which are arranged in parallel, wherein the kitchen waste storage bin and the light kitchen waste mixing bin are communicated through an intermediate pipeline (27) at positions close to the top, the top and the bottom of the kitchen waste storage bin are respectively provided with a crusher (2) and a heavy impurity discharge port (4), the inner side wall of the kitchen waste storage bin is provided with a hot water spray pipe (3), and the top of the crusher is provided with a crusher feed inlet (1) communicated with a filter screen discharge port; the device is characterized in that a light impurity discharge port (6) is formed in the position, close to the top, of the side wall of the light substance kitchen waste mixing bin, an aeration device (8) is arranged in the light substance kitchen waste mixing bin, an organic waste discharge port (9) is formed in the bottom of the light substance kitchen waste mixing bin, a slurry storage tank (15) is arranged below the organic waste discharge port, the slurry storage tank is communicated with the feed end of the slurry separator through a slurry conveying structure, and the discharge end of the slurry separator is communicated with the feed end of the anaerobic tank through an anaerobic material conveying structure.
2. The hydraulic pneumatic linkage flotation kitchen waste anaerobic fermentation treatment system according to claim 1, characterized in that: the slurry conveying structure comprises a slurry lifting pump (16) and a slurry discharging pipe (17).
3. The hydraulic pneumatic linkage flotation kitchen waste anaerobic fermentation treatment system according to claim 2, characterized in that: the anaerobic material conveying structure comprises an anaerobic material conveying pipe (22) and an anaerobic material conveying pump (23).
4. The hydraulic pneumatic linkage flotation kitchen waste anaerobic fermentation treatment system according to claim 3, characterized in that: the light impurity separator is characterized by further comprising a light impurity separator (20), wherein the feed end of the light impurity separator is communicated with a light impurity discharge hole through a light impurity discharge pipe (18), and a light impurity suction pump (19) is arranged on the light impurity discharge pipe.
5. The hydraulic pneumatic linkage flotation kitchen waste anaerobic fermentation treatment system according to claim 4, characterized in that: the heavy impurity discharging port is provided with a heavy impurity screw conveyor (13), one end of the heavy impurity screw conveyor is provided with a heavy impurity screw conveyor collecting hopper (14), and the heavy impurity screw conveyor collecting hopper is positioned below the heavy impurity discharging port.
6. The hydraulic pneumatic linkage flotation kitchen waste anaerobic fermentation treatment system according to claim 5, characterized in that: the slurry separator also comprises an oil collecting bin (26), and the oil collecting bin is communicated with the oil outlet ends of the slurry separator and the light and impurity separator through an oil collecting pipeline (25).
7. The hydraulic pneumatic linkage flotation kitchen waste anaerobic fermentation treatment system according to claim 6, characterized in that: two inside walls that kitchen garbage warehouse (5) is relative all are provided with hot water spray tube (3).
8. The hydraulic pneumatic linkage flotation kitchen waste anaerobic fermentation treatment system according to claim 7, characterized in that: the hot water spray pipe is provided with a plurality of spray branch pipes (28) in parallel.
9. The hydraulic pneumatic linkage flotation kitchen waste anaerobic fermentation treatment system according to claim 8, characterized in that: the spraying branch pipes on the hot water spraying pipes at two sides are arranged in a staggered way.
10. The hydraulic pneumatic linkage flotation kitchen waste anaerobic fermentation treatment system according to claim 4, characterized in that: the aeration device (8) is arranged at the bottom of the light substance kitchen waste mixing bin and is a nano aeration air disc.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110260118.8A CN113105996B (en) | 2021-03-10 | 2021-03-10 | Hydraulic pneumatic linkage flotation kitchen waste anaerobic fermentation treatment system |
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| CN202110260118.8A CN113105996B (en) | 2021-03-10 | 2021-03-10 | Hydraulic pneumatic linkage flotation kitchen waste anaerobic fermentation treatment system |
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| CN113105996B CN113105996B (en) | 2023-07-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114426920A (en) * | 2021-12-07 | 2022-05-03 | 地标(上海)生物科技有限公司 | Fermentation pretreatment equipment and method for blue algae and kitchen waste mixed slurry |
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2021
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114426920A (en) * | 2021-12-07 | 2022-05-03 | 地标(上海)生物科技有限公司 | Fermentation pretreatment equipment and method for blue algae and kitchen waste mixed slurry |
| CN114426920B (en) * | 2021-12-07 | 2022-11-22 | 地标(上海)生物科技有限公司 | Fermentation pretreatment equipment and method for blue algae and kitchen waste mixed slurry |
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