CN113105996B - Hydraulic pneumatic linkage flotation kitchen waste anaerobic fermentation treatment system - Google Patents
Hydraulic pneumatic linkage flotation kitchen waste anaerobic fermentation treatment system Download PDFInfo
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- CN113105996B CN113105996B CN202110260118.8A CN202110260118A CN113105996B CN 113105996 B CN113105996 B CN 113105996B CN 202110260118 A CN202110260118 A CN 202110260118A CN 113105996 B CN113105996 B CN 113105996B
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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
- 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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- 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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- 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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- C12M45/00—Means for pre-treatment of biological substances
- C12M45/04—Phase separators; Separation of non fermentable material; Fractionation
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- 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 flotation kitchen waste anaerobic fermentation treatment system, which 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 kitchen waste mixing bin, wherein a hot water spray pipe is arranged on the inner side wall of the kitchen waste storage bin; the utility model discloses a light kitchen garbage mixing bin, including light kitchen garbage mixing bin, thick liquids storage pond and thick liquids separating centrifuge, the light kitchen garbage mixing bin is provided with the light miscellaneous discharge gate, is provided with aeration equipment in the light kitchen garbage mixing bin, and light kitchen garbage mixing bin bottom is provided with the organic rubbish discharge gate, the below of organic rubbish discharge gate is provided with thick liquids storage pond, thick liquids storage pond and thick liquids separating centrifuge's feed end intercommunication, the discharge end of thick liquids separating centrifuge and anaerobic tank's feed end intercommunication. The hydraulic pneumatic linkage flotation anaerobic fermentation treatment system for the kitchen waste has high integration degree, realizes graded removal of sundries, improves the impurity removal effect of the kitchen waste, and ensures the stability of gas production.
Description
Technical Field
The invention relates to the technical field of kitchen waste treatment, in particular to a hydraulic pneumatic linkage flotation kitchen waste anaerobic fermentation treatment system.
Background
In addition to incineration, the traditional kitchen waste treatment process generally adopts an anaerobic fermentation process for treatment 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 lot of light substances, heavy substances and the like enter an anaerobic reactor (anaerobic tank) due to poor impurity removal effect of pretreatment, so that a series of hazards are brought to the biogas production process at the rear end, and the stability of biogas production is affected.
In order to solve the problems, the prior art has made corresponding researches, for example, chinese patent with application number 201710557316.4 discloses an anaerobic fermentation process of rural kitchen waste, which discloses the technical characteristics of sorting and impurity removing kitchen waste before anaerobic fermentation treatment; another example is that chinese patent with application number 201920228871.7 discloses a kitchen garbage and mud combined anaerobic fermentation system marsh gas comprehensive utilization system, and it discloses the technical characteristics that sorts the edulcoration to kitchen garbage through kitchen garbage sorting device, and these prior art is disclosed the concept of preliminary treatment edulcoration to kitchen garbage, but has following drawback: impurities cannot be removed in a grading way, and the impurity removing effect is relatively poor.
In addition, the existing anaerobic fermentation treatment system has the defects of large equipment quantity and low integration degree, so that the failure rate can be increased to a certain extent, and the maintenance convenience is affected.
Disclosure of Invention
Therefore, the invention aims to provide the hydraulic and pneumatic linkage flotation kitchen waste anaerobic fermentation treatment system so as to improve the integration degree of equipment, improve the impurity removal effect on kitchen waste and ensure the stability of gas production.
The invention solves the problems by the following technical means: the hydraulic and pneumatic linkage flotation kitchen waste 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 a position close to the top through a middle 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 utility model discloses a light kitchen garbage mixing bin, including light kitchen garbage, thick liquids, anaerobic material conveying structure, thick liquids separating centrifuge, thick liquids storage pool, anaerobic material conveying structure, anaerobic material separating centrifuge, thick liquids separating centrifuge, aeration equipment, organic rubbish discharge gate, thick liquids storage pool, thick liquids separating centrifuge, anaerobic material conveying structure, anaerobic material separating centrifuge, thick liquids storage pool, thick liquids separating centrifuge, and the like.
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.
Further, the light impurity separator is further included, the feeding end of the light impurity separator is communicated with the light impurity discharging port through a light impurity discharging pipe, and a light impurity suction pump is arranged on the light impurity discharging pipe.
Further, a heavy impurity screw conveyor is arranged at the heavy impurity discharge hole, one end of the heavy impurity screw conveyor is provided with a heavy impurity screw conveyor collecting bucket, and the heavy impurity screw conveyor collecting bucket is arranged below the heavy impurity discharge hole.
Further, the oil collecting bin is communicated with the oil outlet ends of the slurry separator and the light impurity separator through oil collecting pipelines.
Further, two opposite inner side walls of the kitchen waste bin are provided with hot water spray pipes.
Further, a plurality of injection branch pipes are arranged on the hot water spray pipe in parallel.
Further, the spray branch pipes on the hot water spray pipes at the two sides are staggered.
Further, the aeration device is arranged at the bottom of the light kitchen waste mixing bin, and the aeration device is a nano aeration air disc.
The invention has the beneficial effects that: the hydraulic pneumatic linkage flotation kitchen waste 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 kitchen waste mixing bin, wherein a hot water spray pipe is arranged on the inner side wall of the kitchen waste storage bin; the utility model discloses a light kitchen garbage mixing bin, including light kitchen garbage mixing bin, thick liquids storage pond and thick liquids separating centrifuge, the light kitchen garbage mixing bin is provided with the light miscellaneous discharge gate, is provided with aeration equipment in the light kitchen garbage mixing bin, and light kitchen garbage mixing bin bottom is provided with the organic rubbish discharge gate, the below of organic rubbish discharge gate is provided with thick liquids storage pond, thick liquids storage pond and thick liquids separating centrifuge's feed end intercommunication, the discharge end of thick liquids separating centrifuge and anaerobic tank's feed end intercommunication. The hydraulic pneumatic linkage flotation kitchen waste anaerobic fermentation treatment system has the advantages that the integration degree is high, the impurity is removed in a grading manner, the impurity removing effect of the kitchen waste is improved, the gas production stability is ensured, and the following aspects are reflected in the beneficial effects:
1. the functions of stewing, sand setting, deslagging 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 linkage flotation of hydraulic power and pneumatic power;
3. the separation effect on slag in kitchen waste is good, and the separation of light and heavy matters is realized by utilizing the principle of gravity layering;
4. the kitchen waste grease retention rate in the washing liquid is high by washing the whole material with hot water, so that the oil extraction rate of the subsequent oil extraction of the washing liquid is greatly improved.
Drawings
The invention is further described below with reference to the drawings and examples.
Fig. 1 is a schematic structural view of a preferred embodiment of the present invention.
Detailed Description
The invention is further described in detail below by means of the figures and examples. The features and advantages of the present invention will become more apparent from the description. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention.
As shown in fig. 1, the hydraulic and pneumatic linkage flotation kitchen waste anaerobic fermentation treatment system of the embodiment comprises a filter screen 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 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 port 12.
Kitchen garbage pretreatment equipment includes kitchen garbage warehouse 5 and light matter kitchen garbage mix storehouse 7 that arrange side by side, kitchen garbage warehouse 5 and light matter kitchen garbage mix storehouse 7 are in the position that is close to the top through intermediate pipeline 27 intercommunication, and kitchen garbage warehouse 5 top and bottom are provided with breaker 2 and heavy miscellaneous discharge gate 4 respectively, the breaker top is provided with breaker feed inlet 1 with filter screen discharge gate 12 intercommunication.
Two opposite inner side walls of the kitchen waste storage bin 5 are respectively provided with a hot water spray pipe 3, a plurality of spray branch pipes 28 are arranged on the hot water spray pipes in parallel, and the spray branch pipes on the hot water spray pipes on the two sides are staggered, so that the spraying and flushing effects on the kitchen waste are improved.
The light kitchen garbage mixing bin is characterized in that a light impurity discharging hole 6 is formed in the position, close to the top, of the side wall of the light kitchen garbage mixing bin 7, an aeration device 8 is arranged in the light kitchen garbage mixing bin, preferably, the aeration device 8 is arranged at the bottom of the light kitchen garbage mixing bin, the aeration device 8 is a nano aeration air disc, and an organic garbage discharging hole 9 is formed in the bottom of the light kitchen garbage mixing bin.
The crusher is characterized in that electric valves are arranged at the feeding hole 1, the heavy impurity discharging hole 4, the organic garbage discharging hole 9 and the light impurity discharging hole 6.
The lower part of the organic garbage discharge hole 9 is provided with a slurry storage pool 15, the slurry storage pool 15 is communicated with the feed end of the slurry separator 21 through a slurry conveying structure, and the discharge end of the slurry separator 21 is communicated with the feed end of the 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 pool 15, and the outlet of the slurry lifting pump 16 is communicated with the feeding 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 feeding end of the light impurity separator 20 is communicated with a light impurity discharging hole through a light impurity discharging pipe 18, and a light impurity suction pump 19 is arranged on the light impurity discharging pipe 18.
Heavy miscellaneous screw conveyer 13 is provided with in heavy miscellaneous discharge gate 4 department, the one end of heavy miscellaneous screw conveyer 13 is provided with heavy miscellaneous screw conveyer and collects fill 14, heavy miscellaneous screw conveyer collects the fill and is in the below of heavy miscellaneous discharge gate.
The oil collecting bin 26 is communicated with the oil outlet ends of the slurry separator and the light impurity separator through an oil collecting pipeline 25.
During specific work, kitchen waste is screened out large impurities through a filter screen, then enters a feeding port of a crusher, is crushed by the crusher, enters a kitchen waste storage bin, is introduced into a hot water spray pipe through external high-pressure hot water (the water temperature is generally 80-100 ℃), is sprayed out from a spray branch pipe, is sprayed and washed, the crushed kitchen waste is divided into three layers under the actions of hot water washing and floatation, light impurities float on an upper layer, organic matters of the kitchen waste are in a middle layer, heavy impurities are in a lower layer, and are discharged from a heavy impurity discharge port through the action of gravity and then are conveyed out through a heavy impurity screw conveyor; light impurities and kitchen waste organic matters flow into a light kitchen waste mixing bin through a middle channel under the action of hot water floatation, an aeration device is aerated, the light impurities are brought to the upper layer of the light kitchen waste mixing bin under the action of bubble floatation and then discharged from a light impurity discharge port, and then separated through a light impurity separator, kitchen waste organic matter slurry is settled and discharged from an organic waste discharge port, and after being pumped by a slurry lifting pump, the slurry enters a slurry separator for separation, and the separated anaerobic materials are pumped to an anaerobic tank for anaerobic fermentation treatment through an anaerobic material conveying pump.
And (5) the oil separated by the light impurity separator and the slurry separator enters an oil collecting bin for collection.
In summary, the anaerobic fermentation treatment system for the hydraulic and pneumatic linkage flotation of the kitchen waste has high integration degree, realizes the grading removal of sundries, improves the impurity removal effect of the kitchen waste, and ensures the stability of gas production.
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and 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 and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered by the scope of the claims of the present invention.
Claims (10)
1. A hydraulic pneumatic linkage flotation kitchen waste anaerobic fermentation treatment system is characterized in that: the kitchen waste pretreatment 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 port (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 at a position close to the top through a middle pipeline (27), a crusher (2) and a heavy impurity discharge port (4) are respectively arranged at the top and the bottom of the kitchen waste storage bin, a hot water spray pipe (3) is arranged on the inner side wall of the kitchen waste storage bin, and a crusher feed port (1) communicated with a filter screen discharge port is arranged at the top of the crusher; the utility model discloses a light kitchen garbage mixing bin, including light kitchen garbage, thick liquids storage pool, anaerobic material conveying structure, anaerobic tank, thick liquids storage pool, thick liquids separating centrifuge, aeration equipment (8) are provided with in the position that light kitchen garbage mixing bin lateral wall is close to the top, light kitchen garbage mixing bin, and light kitchen garbage mixing bin bottom is provided with organic rubbish discharge gate (9), the below of organic rubbish discharge gate is provided with thick liquids storage pool (15), thick liquids storage pool is through thick liquids conveying structure and thick liquids separating centrifuge's feed end intercommunication, the discharge end of thick liquids separating centrifuge is through anaerobic material conveying structure and anaerobic tank's feed end intercommunication.
2. The hydraulic and pneumatic linkage flotation kitchen waste anaerobic fermentation treatment system according to claim 1, wherein: the slurry conveying structure comprises a slurry lifting pump (16) and a slurry discharging pipe (17).
3. The hydraulic and pneumatic linkage flotation kitchen waste anaerobic fermentation treatment system according to claim 2, wherein: the anaerobic material conveying structure comprises an anaerobic material conveying pipe (22) and an anaerobic material conveying pump (23).
4. A hydraulic-pneumatic linkage flotation kitchen waste anaerobic fermentation treatment system according to claim 3, wherein: the light impurity separating machine is characterized by further comprising a light impurity separating machine (20), wherein the feeding end of the light impurity separating machine is communicated with a light impurity discharging hole through a light impurity discharging pipe (18), and a light impurity suction pump (19) is arranged on the light impurity discharging pipe.
5. The anaerobic fermentation treatment system for hydraulic and pneumatic linkage flotation kitchen waste according to claim 4, wherein the anaerobic fermentation treatment system comprises the following components: heavy miscellaneous screw conveyer (13) are arranged at the heavy miscellaneous discharge gate, one end of the heavy miscellaneous screw conveyer is provided with a heavy miscellaneous screw conveyer collecting bucket (14), and the heavy miscellaneous screw conveyer collecting bucket is positioned below the heavy miscellaneous discharge gate.
6. The anaerobic fermentation treatment system for hydraulic and pneumatic linkage flotation kitchen waste according to claim 5, wherein the anaerobic fermentation treatment system comprises the following components: the oil collecting bin (26) is communicated with the oil outlet ends of the slurry separator and the light impurity separator through an oil collecting pipeline (25).
7. The hydraulic and pneumatic linkage flotation kitchen waste anaerobic fermentation treatment system according to claim 6, wherein: two opposite inner side walls of the kitchen waste storage bin (5) are respectively provided with a hot water spray pipe (3).
8. The hydraulic and pneumatic linkage flotation kitchen waste anaerobic fermentation treatment system according to claim 7, wherein: a plurality of spray branch pipes (28) are arranged on the hot water spray pipe in parallel.
9. The hydraulic and pneumatic linkage flotation kitchen waste anaerobic fermentation treatment system according to claim 8, wherein: the spray branch pipes on the hot water spray pipes at the two sides are staggered.
10. The anaerobic fermentation treatment system for hydraulic and pneumatic linkage flotation kitchen waste according to claim 4, wherein the anaerobic fermentation treatment system comprises the following components: the aeration device (8) is arranged at the bottom of the light kitchen waste mixing bin, and is a nano aeration air disc.
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| 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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2021
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