CN210586347U - Box-shaped push-type domestic garbage continuous aerobic fermentation system - Google Patents
Box-shaped push-type domestic garbage continuous aerobic fermentation system Download PDFInfo
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Abstract
The utility model discloses a continuous aerobic fermentation system of box-shaped push-type domestic waste is provided with the lower hopper of the broken bag all-in-one of installation twin-screw feeding, by driving motor driven rubbish push plate, oxygen supply pipeline, landfill leachate collecting vat, exhaust outlet and the rubbish discharge gate of becoming thoroughly decomposed in the box fermentation storehouse underground. Use the utility model discloses a system, domestic waste have eliminated the foul smell in the totally closed good oxygen fermentation treatment in underground, have changed the dirty indiscriminate poor environmental aspect in refuse disposal field, and underground fermentation storehouse keeps warm effectually, and rubbish dehydration minimizing, mummification are effectual, have overcome the separation obstacle, have improved separation efficiency, do benefit to the resourceful.
Description
Technical Field
The utility model belongs to the technical field of solid waste handles, concretely relates to domestic waste processing system.
Background
The municipal solid waste is a large amount of solid waste. Along with the development of economic society and higher requirements on environmental quality in China, the quantity of domestic garbage is larger and larger, and the collection, transportation, treatment and recycling of the domestic garbage are also more and more highly valued by governments and scientific and technological workers at all levels.
There are many different combined processes for disposing domestic garbage. The early major disposal techniques were composting, natural stockpiling, and landfill. However, with the importance on the quality of soil environment and the safety of agricultural food, the municipal solid waste compost is gradually eliminated because of containing toxic and harmful substances such as heavy metals. Natural stockpiling, simple landfills have also been banned due to the generation of severe groundwater pollution. Direct sorting of domestic garbage is once paid attention, but direct sorting is difficult to popularize in domestic garbage treatment in China due to the fact that a garbage direct sorting device is often obstructed, operation and maintenance are difficult, recycling benefits of sorted products are low, particularly, compost after sorting is low in fertilizer efficiency, environmental risks exist, and export marketing is difficult.
At present, the mainstream treatment mode of the household garbage is sanitary landfill and incineration power generation. The sanitary landfill can be safely and harmlessly treated, but the landfill site has bad smell, serious breeding of mosquitoes, dirty and bad environment, huge greenhouse gas discharge amount, difficult landfill leachate treatment and high cost, and is a great burden for the operation and maintenance of the landfill site. The sanitary landfill treatment has large one-time investment and large occupied area, and can not realize the aims of resource utilization and reduction of the garbage. And the storage capacity of the landfill site is limited, the landfill site is always closed after a plurality of years, the selection of a new site is difficult, and the embarrassment that the domestic garbage can be buried everywhere appears. From the aims of harmless and quantitative reduction of household garbage treatment, the incineration method is safest and most thorough. Meanwhile, the heat generated in the incineration process can also generate electricity. But the domestic garbage has high water content and low heat value, so the power generation efficiency is low. The domestic garbage is burnt to generate dioxin, and the emission requirement can be met only by the treatment of a complex and high-consumption flue gas purification technology. Environmental sanitation problems such as foul smell and the like and serious air pollution problems can be generated during the garbage storage period of the household garbage incineration plants, so that the construction of a plurality of incineration plants is difficult to implement on the ground.
Patent CN201721034465 discloses a domestic garbage push type continuous fermentation treatment system, which comprises a pretreatment system, a fermentation system, a biogas collection system and a post-treatment system. The pretreatment system comprises a garbage sorting device and a garbage crushing device; the fermentation system comprises a fermentation tank and a horizontal stirrer which horizontally rotates. The horizontal stirrer consists of a horizontal central main shaft, a plurality of stirring arms which are uniformly distributed on the central shaft in a spiral surrounding manner, and a driving motor. The end of the stirring arm is fixed with a scraping plate, and an included angle between the scraping plate and the stirring arm is an oblique angle. Heating components are arranged on the inner walls of the fermentation tank on the two sides of the central shaft. The disadvantages are that no active oxygen supply is provided, the garbage is in an anaerobic fermentation state, and on one hand, the odor is difficult to eliminate; on the other hand, the anaerobic fermentation organic matter has slow degradation speed, long material retention time, difficult complete stabilization of the organic matter and low equipment efficiency. In addition, the household garbage is always stirred, and the energy consumption is large. The interweaving of the defects leads to high cost for treating the household garbage and is difficult to be accepted by the market.
SUMMERY OF THE UTILITY MODEL
In order to overcome the outstanding problem that exists in the aspect of refuse treatment at present, the utility model discloses a continuous good oxygen fermentation system of box-shaped sliding domestic waste aims at utilizing the underground space in the city, makes domestic waste separate after dividing the piece and fermenting thoroughly fast on the spot, divides the plastics of electing etc. to carry out resourceization, humus soil as city afforestation nutrition soil to solve the problem in rubbish besieged city, promote the development of circular economy.
In order to realize the purpose, the utility model adopts the following technical proposal:
a box-shaped push-type domestic garbage continuous aerobic fermentation system is characterized in that: comprises a box-shaped fermentation bin arranged underground;
one side of the box-shaped fermentation bin is a discharging side, and the other opposite side of the box-shaped fermentation bin is a discharging side; a discharging hopper is arranged above the discharging side of the box-type fermentation bin, the discharging hopper is connected with a discharging ground platform, and a double-screw feeding and bag breaking integrated machine is arranged in the discharging hopper; a garbage pushing plate is further mounted on the discharging side of the box-type fermentation bin and driven by a driving motor;
an oxygen supply pipeline is laid on the ground of the box-shaped fermentation chamber and is connected with an oxygen supply fan; a garbage leachate collecting tank is arranged under the ground of the box-shaped fermentation bin and is covered by a water grate plate;
the garbage leachate collecting tank is arranged in a penetrating manner along the width direction of the box-shaped fermentation bin, inclines towards one side, and is provided with a garbage leachate storage well at the lowest side;
a decomposed garbage discharge port is formed in the discharge side of the box-type fermentation bin, a decomposed garbage conveying belt conveyor is arranged outside the decomposed garbage discharge port and is connected to a sorting workshop;
the box-type fermentation bin is also provided with a waste gas outlet which is connected with an exhaust fan.
Furthermore, the ground of the box-shaped fermentation bin is integrally inclined by 2-15% towards the discharging side.
Furthermore, the box-shaped fermentation bin is cuboid, the length of the box-shaped fermentation bin is 20-50m, the width of the box-shaped fermentation bin is 3-5m, the height of the box-shaped fermentation bin is 3-5m, and the direction from the feeding side to the discharging side is the length direction.
Further: a slit is arranged between the garbage pushing plate and the two side walls of the box-shaped fermentation bin; the bottom end of the garbage pushing plate is 10-20cm away from the ground of the box-type fermentation bin, a scraping plate is mounted at the bottom of the garbage pushing plate, and the scraping plate can vertically move along the height direction of the garbage pushing plate.
Further: the oxygen supply pipelines are arranged along the length direction of the box-shaped fermentation chamber, the distance between every two adjacent oxygen supply pipelines is 1-2m, and the pipe diameter of each oxygen supply pipeline is 10-20 cm; one end of the oxygen supply pipeline is connected with an oxygen supply fan, and the other end of the oxygen supply pipeline is sealed; 1/3 of the diameter of the oxygen supply pipeline is positioned below the ground of the box-type fermentation chamber, 2/3 of the oxygen supply pipeline is positioned above the ground of the box-type fermentation chamber, and the side surface of the part above the oxygen supply pipeline is provided with vent holes obliquely downwards from the inside to the outside of the box-type fermentation chamber.
Further: the waste gas outlet is connected with the biological trickling filter through an exhaust fan;
or: a biological filler supporting layer is arranged above the roof of the box-type fermentation bin, and a biological filler layer is arranged on the biological filler supporting layer; an air distribution interlayer is formed between the roof of the box-type fermentation bin and the biological filler supporting layer, and the biological filler supporting layer is provided with vent holes; an air outlet of the exhaust fan is introduced into the air distribution interlayer; the roof of the box-type fermentation bin is integrally inclined by 0.5-5% towards the discharging side, and a filtrate dripping collection pool is arranged at the lowest side.
Further: an air inlet pipe is laid in the garbage leachate collecting tank and is connected with the oxygen supply fan through a valve; the part of the air inlet pipe, which is positioned in the garbage leachate collecting tank, is a perforated pipe.
Further: and epoxy resin coatings are arranged on the peripheral wall surfaces and the ground of the box-type fermentation bin.
Further: and an immersed pump is arranged in the garbage percolate storage well and is connected to the blanking hopper through a pipeline.
The beneficial effects of the utility model are embodied in:
1. use the utility model discloses a system, domestic waste have eliminated the foul smell in the totally closed aerobic fermentation treatment in underground, have changed the dirty indiscriminate poor environmental aspect in refuse disposal field, do not constitute the interference to the resident, can be compatible with the urban area environment. The underground fermentation chamber has good heat preservation effect, the collected percolate is mixed with the fed garbage, a large amount of various aerobic microorganisms are inoculated, the garbage pile body is rapidly heated while degradable organic matters in the garbage are rapidly decomposed, the garbage pile body is integrally kept at more than 45 ℃, the highest temperature region can reach more than 70 ℃, air fed by an oxygen supply fan carries high-temperature moisture to be discharged out of the fermentation chamber, the garbage dehydration and reduction and the drying effect are good, the overall reduction of the garbage reaches 50%, the cost of the garbage transportation to a power plant is reduced, and the heat value and the power generation efficiency are greatly improved. In addition, the adhesion of materials is eliminated after dehydration and drying, the sorting obstacle is overcome, the sorting efficiency is improved, and the recycling is facilitated.
2. The box-type push-type domestic garbage continuous aerobic fermentation system has the advantages that garbage is fed from the discharging hopper of the fermentation bin, and the garbage push plate is driven by the motor to push the garbage to slowly move towards the discharging side, so that the operation efficiency of equipment such as the fermentation bin is improved, and the automation and high-level maintenance and management are facilitated.
3. The box-type fermentation chamber and the auxiliary equipment thereof are underground and semi-underground full-closed systems, and are actively ventilated to supply oxygen for aerobic fermentation, so that the generation of malodorous gas and the dissipation of malodorous gas are avoided, the environmental problem of a garbage disposal plant is eliminated, the fermentation chamber is better insulated, the temperature rise speed and temperature of garbage fermentation are increased, the time required by the decomposition of household garbage is shortened, and the rapid aerobic fermentation is realized.
4. The whole ground of the box-shaped fermentation bin is inclined by 2-15% towards the discharge side, and a water grate plate and a garbage percolate collecting tank are arranged below the ground in the middle of the fermentation bin: on one hand, leachate generated by the aerobic fermentation of the garbage automatically flows into a garbage leachate collecting tank, and the water content of the fermented domestic garbage discharged from a warehouse is favorably reduced; on the other hand, the domestic garbage in the fermentation chamber moves downwards along the slope by virtue of gravity, so that the driving force and the energy consumption for pushing the garbage pile body are greatly reduced.
5. And after the landfill leachate flows into the landfill leachate collecting tank, the landfill leachate flows into a landfill leachate storage well underground. Most of the garbage percolate is sprayed to the feeding hopper through the immersed pump, on one hand, various aerobic microorganisms are inoculated for garbage fermentation, the proliferation rate of the garbage aerobic fermentation microorganisms is improved, the fermentation efficiency is improved, and the time required by the garbage fermentation stabilization is shortened; on the other hand, the garbage leachate is treated by the aerobic fermentation together with the garbage, so that the treatment investment and cost of the garbage leachate are greatly reduced.
6. Lay a perforated pipe and connect the oxygen suppliment fan air supply pipe in the landfill leachate collecting vat, constantly to the interior aeration oxygen suppliment of collecting vat, its effect lies in: on one hand, the amount of released air is controlled by a valve to maintain the percolate in the garbage percolate collecting tank in an aerobic state, so that the odor generated by anaerobic treatment is avoided; on the other hand sweeps solid matter that can precipitate in the landfill leachate collecting vat and flows into the landfill leachate storage well, avoids solid matter deposit to cause the siltation at the collecting vat.
7. The wall surfaces and the ground around the box-shaped fermentation bin are coated with epoxy resin to be made into smooth surfaces: on one hand, the surface corrosion resistance of the fermentation bin is improved, and the corrosion of the acid leachate in the acid production stage by hydrolysis of organic matters in the household garbage is prevented; on the other hand, the friction coefficient of the smooth surface is reduced, the friction force between the pushed garbage and the ground surface and the peripheral wall surfaces of the fermentation bin is reduced, and the energy consumption for pushing the garbage to move is reduced.
8. The bottom of the pile body in the domestic garbage fermentation bin is forcibly ventilated, aerobic biological fermentation is maintained in a high-temperature state, evaporation and discharge of moisture in garbage are enhanced, waste gas with high moisture content close to water vapor saturation in the fermentation bin is conveyed to enter a biological trickling filter or a biological filler layer through a fan for purification, and because the heat exchange temperature of the waste gas and the environment is reduced, the water vapor in the waste gas is purified and condensed in the biological trickling filter or the biological filler layer, condensed water is collected, treated and recycled, and meanwhile, the emission of ammonia and VOCs is greatly reduced.
Drawings
FIG. 1 is a schematic view of a box-shaped push-type domestic garbage continuous aerobic fermentation system of the present invention;
FIG. 2 is another schematic view of the box-shaped push-type domestic garbage continuous aerobic fermentation system of the present invention;
FIG. 3 is a schematic view of the oxygen supply pipeline laid on the ground of the box-type fermentation chamber and the position of the opening of the oxygen supply pipeline;
FIG. 4 is a schematic cross-sectional view of a box-type fermentation chamber group according to the present invention;
reference numbers in the figures: 1, a box-shaped fermentation bin; 1A, feeding a hopper; 1B, discharging a decomposed garbage outlet; 1C waste gas outlet; 2, blanking a ground platform; 3, feeding and breaking the bag by a double-screw rod integrated machine; 4, a garbage pushing plate; 4A scraper blade; 5 driving the motor; 6, the ground of the box-shaped fermentation chamber; 7 oxygen supply lines; 8, an oxygen supply fan; 9, collecting the garbage leachate; 10 grate water board; 11, a thoroughly decomposed garbage belt conveyor; 12 an exhaust fan; 13 a bio-trickling filter; 14 a biofilm carrier layer; 15 a biological filler layer; a 16-drop filtrate collection tank; 17 a surface greening layer; 18 partition wall between the fermentation chambers.
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to examples. The following is merely exemplary and illustrative of the inventive concept and various modifications, additions and substitutions which may be made by those skilled in the art to the specific embodiments described herein are intended to fall within the scope of the invention without departing from the spirit or scope of the invention as defined in the claims.
As shown in fig. 1 and 2, the box-shaped push-type domestic garbage continuous aerobic fermentation system of the present embodiment comprises a box-shaped fermentation chamber 1 disposed underground;
one side of the box-shaped fermentation bin 1 is a discharging side, and the other opposite side is a discharging side; a discharging hopper 1A is arranged above the discharging side of the box-type fermentation bin 1, the discharging hopper 1A is connected with a discharging ground platform 2, and a double-screw feeding and bag breaking integrated machine 3 is arranged in the discharging hopper 1A; a garbage pushing plate 4 is further installed on the discharging side of the box-type fermentation bin 1, and the garbage pushing plate 4 is driven by a driving motor 5;
an oxygen supply pipeline 7 is laid on the ground 6 of the box-shaped fermentation chamber, and the oxygen supply pipeline 7 is connected with an oxygen supply fan 8; a garbage leachate collecting tank 9 is arranged below the ground 6 of the box-shaped fermentation bin, and the garbage leachate collecting tank 9 is covered by a water grate plate 10;
the garbage leachate collecting tank 9 is arranged in a penetrating manner along the width direction of the box-shaped fermentation bin 1, inclines 1-3% towards one side, and is provided with a garbage leachate storage well at the lowest side;
a decomposed garbage discharge port 1B is formed in the discharge side of the box-type fermentation bin 1, a decomposed garbage conveyor belt 11 is arranged outside the decomposed garbage discharge port 1B, and the decomposed garbage conveyor belt 11 is connected to a sorting workshop;
a waste gas outlet 1C is also arranged on the box-type fermentation chamber 1, and the waste gas outlet 1C is connected with an exhaust fan 12.
Furthermore, the ground 6 of the box-shaped fermentation bin is integrally inclined by 2-15% towards the discharging side. Specifically, the ground 6 of the box-type fermentation chamber in the embodiment is integrally inclined by 8% towards the discharging side.
Further, the box-shaped fermentation chamber 1 is cuboid, the length is 20-50m, the width is 3-5m, the height is 3-5m, and the direction from the feeding side to the discharging side is the length direction. Specifically, in this embodiment, the internal dimensions of the box-shaped fermentation chamber are as follows: length 25m, width 3mHeight 3m and chamber volume 225m3。
Furthermore, the garbage pushing plate 4 is arranged in parallel to the blanking side wall surface (wide surface and high surface) of the box-type fermentation bin, the width of the garbage pushing plate is slightly smaller than that of the box-type fermentation bin, the upper part of the garbage pushing plate does not exceed the blanking port of the box-type fermentation bin, so that a slit is formed between the garbage pushing plate and the two side walls of the box-type fermentation bin 1, and the garbage pushing plate 4 can horizontally move from the blanking side to the discharging side of the box-type fermentation bin 1; the bottom end of the garbage pushing plate 4 is 10-20cm away from the ground 6 of the box-type fermentation chamber, a scraping plate 4A is arranged at the bottom of the garbage pushing plate 4, and the scraping plate 4A can vertically move along the height direction of the garbage pushing plate 4. The setting of scraper blade can guarantee that rubbish pushing plate rear does not have rubbish and hinders: when the garbage pushing plate advances towards the discharging side, the scraper plate descends to the ground tightly attached to the box-type fermentation bin, so that all the household garbage is pushed forwards; when the garbage pushing plate retreats, the scraper plate is lifted to ensure that the garbage pushing plate can retreat without obstacles. Specifically, the width of the garbage pushing plate is 2.8m, the height of the garbage pushing plate is 2.8m, the garbage pushing plate is connected with a driving motor through a threaded rod, the distance between the bottom end of the garbage pushing plate and the ground is 20cm, the width of a scraping plate at the bottom of the garbage pushing plate is 2.95m, the height of the scraping plate is 30cm, the height of the scraping plate can be 30cm, and the pushing plate and the scraping plate move forwards and backwards horizontally through the driving motor.
Further: the oxygen supply pipelines 7 are arranged along the length direction of the box-shaped fermentation chamber, the distance between every two adjacent oxygen supply pipelines is 1-2m, and the pipe diameter of each oxygen supply pipeline is 10-20 cm; one end of the oxygen supply pipeline 7 is connected with an oxygen supply fan 8, and the other end is sealed; as shown in figure 3, 1/3 of the diameter of the oxygen supply pipeline 7 is positioned below the ground 6 of the box-shaped fermentation chamber, 2/3 is positioned above the ground 6 of the box-shaped fermentation chamber, and the side surface of the part positioned above the oxygen supply pipeline is obliquely provided with vent holes from the inside to the outside of the pipe, wherein the aperture is 8mm, and the hole spacing is 10 cm.
Further, the exhaust gas outlet 1C has two setting modes:
the first method is as follows: as shown in fig. 1, the exhaust gas outlet 1C is connected to a bio-trickling filter 13 by an exhaust fan 12. In specific implementation, a ground greening layer 5 can be arranged on the roof of the box-type fermentation chamber 1.
The second method comprises the following steps: as shown in fig. 2, a biological filler supporting layer 14 is arranged above the roof of the box-shaped fermentation chamber 1, and a biological filler layer 15 is arranged on the biological filler supporting layer 14; an air distribution interlayer is formed between the roof of the box-type fermentation chamber 1 and the biological filler supporting layer 14, and the biological filler supporting layer 14 is provided with vent holes; the air outlet of the exhaust fan 12 is led into the air distribution interlayer; the roof of the box-shaped fermentation chamber 1 is integrally inclined by 0.5-5% towards the discharging side, and a trickling filtrate collecting tank 16 is arranged at the lowest side. The trickling filtrate collecting tank 16 is arranged along the width direction of the box-shaped fermentation bin, the moisture content of waste gas in the box-shaped fermentation bin is higher, the waste gas is purified by the biological packing layer, and condensed water formed by water vapor condensation flows into the trickling filtrate collecting tank. Meanwhile, the trickling filtrate collecting tank can also collect rainfall.
Further, an air inlet pipe can be laid in the garbage leachate collecting tank 9 and connected with the oxygen supply fan 8, and the part of the air inlet pipe located in the garbage leachate collecting tank 9 is a perforated pipe.
Furthermore, the wall surfaces and the ground around the box-shaped fermentation bin 1 are provided with epoxy resin coatings.
Further, an immersed pump is arranged in the landfill leachate storage well 9 and is connected to the blanking hopper 1A through a pipeline.
The application method of the box-shaped push-type domestic garbage continuous aerobic fermentation system comprises the following steps:
the domestic garbage is poured into a discharging hopper 1A from a discharging ground platform 2, and falls into a box-type fermentation bin 1 after being subjected to bag breaking and crushing in the discharging hopper through a double-screw feeding and bag breaking integrated machine 3;
when new household garbage falls into the box-type fermentation bin 1, the driving motor 5 drives the garbage pushing plate 4 to move forwards in a piston mode, so that the household garbage in the box-type fermentation bin 1 is pushed forwards for 1-2m, and then the garbage pushing plate 4 returns to the original position; along with the continuous feeding of the household garbage, the household garbage in the box-type fermentation bin integrally moves towards the discharging side in a stepping manner;
the oxygen supply fan 8 and the oxygen supply pipeline 7 supply air required by aerobic fermentation into the domestic garbage, and the air supply amount is 3000-3H, air sourceVentilating the air in the sorting workshop to ensure that the air in the sorting workshop maintains proper temperature, humidity and sanitary quality; the domestic garbage is quickly heated up and continuously aerobically fermented in the box-type fermentation bin, and degradable organic matters are decomposed, dehydrated, reduced, dried and decomposed;
garbage fermentation liquor generated in the process of domestic garbage fermentation flows into a garbage leachate collecting tank 9 and then is converged into a garbage leachate storage well; the garbage leachate part (30-50 kg leachate per ton of garbage) in the garbage leachate storage well is sprayed into the feeding hopper 1A through an immersed pump, is mixed with the fed household garbage to serve as an aerobic fermentation inoculation microbial inoculum, the redundant part is output to an anaerobic tank for treatment and biogas production, and the produced biogas can be used as a treatment plant life or a fermentation bin for heating;
the residence time of the household garbage in the box-type fermentation bin is 5-15 d; fermented household garbage is discharged continuously or semi-continuously from a decomposed garbage discharge port, is conveyed to a separation workshop by a decomposed garbage conveyor belt 11, is separated on site, or is conveyed to a separation plant for centralized separation, or is conveyed to a garbage power plant for incineration power generation, or is conveyed to the garbage power plant for incineration power generation after humus particles are removed by screening, so that the calorific value is further improved, and the garbage power plant is subjected to electromagnetic metal removal for incineration power generation;
the waste gas in the box-type fermentation bin is treated in the following two ways:
the first method is as follows: the waste gas in the box-shaped fermentation chamber is extracted from a waste gas outlet 1C by an exhaust fan 12, and is discharged after being treated by a biological trickling filter 13, and the generated condensed water can be led into a ground biological aerated filter for treatment and discharge after reaching standards, or can be reused for plastic cleaning and greening;
the second method comprises the following steps: waste gas in the box-type fermentation bin is extracted from a waste gas outlet 1C by an exhaust fan 12, conveyed into a gas distribution interlayer, enters a biological filler layer 15 through a vent hole on a biological filler supporting layer 14 for purification, and is discharged into the atmosphere; in the process of passing through the biological filler layer, condensed water formed by condensing water vapor in the waste gas flows into the trickling filtrate collecting tank 16, can be led into the ground biological aerated filter for treatment and discharge after reaching standards, or can be reused for plastic cleaning and greening.
In a specific implementation, as shown in fig. 4, the box-type fermentation chamber of this embodiment may be a plurality of (e.g., 5) fermentation chambers arranged in parallel, each box-type fermentation chamber separately feeds, moves, ferments, and discharges, and each box-type fermentation chamber operates independently, the plurality of fermentation chambers only share one separation workshop, and the other devices are all separately installed.
Claims (9)
1. The utility model provides a continuous aerobic fermentation system of box-shaped propelling movement formula domestic waste, characterized by: comprises a box-shaped fermentation bin (1) arranged underground;
one side of the box-shaped fermentation bin (1) is a discharging side, and the other opposite side is a discharging side; a discharging hopper (1A) is arranged above the discharging side of the box-type fermentation bin (1), the discharging hopper (1A) is connected with a discharging ground platform (2), and a double-screw feeding and bag breaking integrated machine (3) is installed in the discharging hopper (1A); a garbage pushing plate (4) is further installed on the discharging side of the box-type fermentation bin (1), and the garbage pushing plate (4) is driven by a driving motor (5);
an oxygen supply pipeline (7) is laid on the ground (6) of the box-shaped fermentation chamber, and the oxygen supply pipeline (7) is connected with an oxygen supply fan (8); a garbage leachate collecting tank (9) is arranged below the ground (6) of the box-type fermentation bin, and the garbage leachate collecting tank (9) is covered by a water grate plate (10);
the garbage leachate collecting tank (9) is arranged in a penetrating manner along the width direction of the box-shaped fermentation bin (1), inclines towards one side, and is provided with a garbage leachate storage well at the lowest side;
a decomposed waste discharge port (1B) is formed in the discharge side of the box-type fermentation bin (1), a decomposed waste conveying belt conveyor (11) is arranged outside the decomposed waste discharge port (1B), and the decomposed waste conveying belt conveyor (11) is connected to a sorting workshop;
the box-type fermentation chamber (1) is also provided with a waste gas outlet (1C), and the waste gas outlet (1C) is connected with an exhaust fan (12).
2. The box-shaped push-type domestic garbage continuous aerobic fermentation system according to claim 1, wherein: the ground (6) of the box-shaped fermentation bin is integrally inclined by 2-15% towards the discharging side.
3. The box-shaped push-type domestic garbage continuous aerobic fermentation system according to claim 1, wherein: the box-shaped fermentation bin (1) is cuboid, the length is 20-50m, the width is 3-5m, the height is 3-5m, and the direction from the feeding side to the discharging side is the length direction.
4. The box-shaped push-type domestic garbage continuous aerobic fermentation system according to claim 1 or 3, wherein: a slit is arranged between the garbage pushing plate (4) and the two side walls of the box-type fermentation bin (1); the bottom end of the garbage pushing plate (4) is 10-20cm away from the ground (6) of the box-type fermentation bin, a scraping plate (4A) is installed at the bottom of the garbage pushing plate (4), and the scraping plate (4A) can vertically move along the height direction of the garbage pushing plate (4).
5. The box-shaped push-type domestic garbage continuous aerobic fermentation system according to claim 1, wherein: the oxygen supply pipelines (7) are arranged along the length direction of the box-shaped fermentation chamber, the distance between every two adjacent oxygen supply pipelines is 1-2m, and the pipe diameter of each oxygen supply pipeline is 10-20 cm; one end of the oxygen supply pipeline (7) is connected with an oxygen supply fan (8), and the other end is sealed; 1/3 of the diameter of the oxygen supply pipeline (7) is positioned below the ground (6) of the box-type fermentation chamber, 2/3 of the oxygen supply pipeline is positioned above the ground (6) of the box-type fermentation chamber, the side surface of the part positioned above the oxygen supply pipeline is from the inside of the pipe to the outside of the pipe, and vent holes are obliquely arranged downwards.
6. The box-shaped push-type domestic garbage continuous aerobic fermentation system according to claim 1, wherein:
the waste gas outlet (1C) is connected with a biological trickling filter (13) through an exhaust fan (12);
or: a biological filler supporting layer (14) is arranged above the roof of the box-type fermentation bin (1), and a biological filler layer (15) is arranged on the biological filler supporting layer (14); an air distribution interlayer is formed between the roof of the box-type fermentation bin (1) and the biological filler supporting layer (14), and the biological filler supporting layer (14) is provided with vent holes; an air outlet of the exhaust fan (12) is introduced into the air distribution interlayer; the roof of the box-type fermentation bin (1) is integrally inclined by 0.5-5% towards the discharging side, and a trickling filtrate collecting pool (16) is arranged at the lowest side.
7. The box-shaped push-type domestic garbage continuous aerobic fermentation system according to claim 1, wherein: an air inlet pipe is laid in the garbage leachate collecting tank (9) and is connected with the oxygen supply fan (8) through a valve; the part of the air inlet pipe, which is positioned in the garbage leachate collecting tank (9), is a perforated pipe.
8. The box-shaped push-type domestic garbage continuous aerobic fermentation system according to claim 1, wherein: the peripheral wall surface and the ground of the box-shaped fermentation bin (1) are provided with epoxy resin coatings.
9. The box-shaped push-type domestic garbage continuous aerobic fermentation system according to claim 1, wherein: an immersed pump is arranged in the landfill leachate storage well and is connected to the blanking hopper (1A) through a pipeline.
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| CN110560461A (en) * | 2019-09-29 | 2019-12-13 | 安徽安特治废弃物资源化研究中心有限公司 | box-shaped push-type domestic garbage continuous aerobic fermentation system and application method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110560461A (en) * | 2019-09-29 | 2019-12-13 | 安徽安特治废弃物资源化研究中心有限公司 | box-shaped push-type domestic garbage continuous aerobic fermentation system and application method thereof |
| CN110560461B (en) * | 2019-09-29 | 2024-02-09 | 安徽安特治废弃物资源化研究中心有限公司 | Box-shaped pushing type domestic garbage continuous aerobic fermentation system and application method thereof |
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