阅读说明：本技术 大型有机生活垃圾堆场及其使用方法 (Large organic domestic garbage storage yard and use method thereof ) 是由 缪忠尚 钟仁华 彭诗阳 蔡红春 于 2019-10-11 设计创作，主要内容包括：本发明公开了一种大型有机生活垃圾堆场及其使用方法,包括垃圾堆积池；垃圾堆积池底部和侧壁均固定有防渗层；所述倾斜斜面内固定有基桩,基桩连接有搅拌桩,搅拌桩内成形有收集管腔和过滤孔；所述过滤孔与收集管腔连通,收集管腔底部连通有气液存储槽,气液存储槽底部连通有渗透液回收系统,上部连通有气体收集系统。本发明通过模拟肠道吸水的过程设置自上到下设置有过滤孔的搅拌桩保证了有机生活垃圾堆场底部的垃圾处于较为干燥的状态,使得处理后垃圾干燥,方便运输,降低了运输难度和运输成本,同时防止了运输时渗透液对周围环境的污染,同时搅拌桩为填入的垃圾堆提供了纵向和网格化的支撑强度,分散应力,防止降解的不均恒导致垮塌风险。(The invention discloses a large-scale organic domestic garbage storage yard and a using method thereof, comprising a garbage accumulation pool; impermeable layers are fixed at the bottom and the side wall of the garbage accumulation tank; a foundation pile is fixed in the inclined slope and connected with a stirring pile, and a collecting pipe cavity and a filtering hole are formed in the stirring pile; the filter holes are communicated with the collecting pipe cavity, the bottom of the collecting pipe cavity is communicated with a gas-liquid storage tank, the bottom of the gas-liquid storage tank is communicated with a penetrating fluid recovery system, and the upper part of the gas-liquid storage tank is communicated with a gas collecting system. The stirring pile provided with the filtering holes from top to bottom is arranged in the process of simulating intestinal absorption, so that the garbage at the bottom of the organic domestic garbage storage yard is in a dry state, the processed garbage is dry and convenient to transport, the transport difficulty and the transport cost are reduced, the pollution of penetrating fluid to the surrounding environment during transport is prevented, and meanwhile, the stirring pile provides longitudinal and gridding support strength for the filled garbage pile, disperses stress, and prevents collapse risk caused by non-uniform degradation.)

1. A large-scale organic domestic garbage storage yard is characterized by comprising a garbage accumulation pool (1), wherein an inclined slope (2) is formed at the bottom of the garbage accumulation pool (1), a discharge hole (3) is formed in the side wall of the garbage accumulation pool (1) at the lowest position of the inclined slope (2), a gate (4) is installed by matching with the discharge hole (3), and the gate (4) is connected with a push-pull device (5);

the bottom and the side wall of the garbage accumulation pool (1) are both fixed with impermeable layers (6), the top of the garbage accumulation pool (1) is fixed with a covering layer (7), and the covering layer (7) is provided with a feeding port (8);

a foundation pile (9) is fixed in the inclined slope (2), the foundation pile (9) is connected with a stirring pile (10), the stirring pile (10) comprises a shell (101), a collecting pipe cavity (12) is formed in the shell (101), and a plurality of filtering holes (11) are formed in the shell (101) from top to bottom; the filter holes (11) are communicated with the collection tube cavity (12), the bottom of the collection tube cavity (12) is communicated with a gas-liquid storage tank (13), the bottom of the gas-liquid storage tank (13) is communicated with a penetrating fluid recovery system, and the upper part of the gas-liquid storage tank is communicated with a gas collection system; the penetrating fluid recovery system comprises a penetrating fluid recovery pipe (14) communicated with the bottom of the gas-liquid storage tank (13), and the penetrating fluid recovery pipe (14) is communicated with a penetrating fluid collecting tank (16) through a water pump (15); the gas collection system comprises a gas recovery pipe (17) communicated with the upper part of the gas-liquid storage tank (13), and the gas recovery pipe (17) is communicated with a gas storage tank (19) through a gas pump (18).

2. The large-scale organic domestic waste storage yard according to claim 1, wherein said foundation pile (9) is rotatably connected with a stirring pile (10); a rotating device (20) is installed in the foundation pile (9), the rotating device (20) is connected with an external gear (21), and an internal gear (22) meshed with the external gear (21) is fixed in the stirring pile (10);

the gas-liquid storage tank (13) is positioned in the foundation pile (9), and the bottom of the collection pipe cavity (12) is fixedly provided with a communicating pipe (23) communicated with the gas-liquid storage tank (13); a stirring structure is arranged outside the stirring pile (10); valves are arranged on the penetrating fluid recovery pipe (14) and the gas recovery pipe (17).

3. The large-scale organic domestic waste storage yard according to claim 2, wherein said stirring structure is a stirring rod (24) or a helical stirring blade (25) or a stirring tooth; the rotating device (20) is a rotating oil cylinder.

4. The large-scale organic domestic waste storage yard according to claim 1, wherein said mixing pile (10) is formed by interconnecting a plurality of mixing pile bodies (26); the top of the stirring pile body (26) is fixed with a sealing cover (27), and the sealing cover (27) is provided with an electromagnetic valve (28).

5. The large-scale organic domestic waste storage yard according to claim 1, wherein said push-pull means (5) is a hydraulic ram; and a cover door (37) is hinged at the feeding port (8).

6. The large-scale organic domestic waste storage yard according to claim 1, wherein a permeate recirculation network pipe (29) is fixed in the covering layer (7), and the permeate recirculation network pipe (29) is communicated with the permeate collection tank (16) through a circulation pump (30); the penetrating fluid recharging net pipe (29) is also communicated with a plurality of spray heads (31); a valve is arranged on the penetrating fluid recharging net pipe (29); the penetrating fluid recharging net pipe (29) is also communicated with a gas storage tank (19) through a gas return pipe (38), and a valve and a return air pump (39) are arranged on the gas return pipe (38).

7. The large-scale organic domestic waste storage yard according to claim 1, wherein a first filter layer (102) is fixed in the housing (101), and a second filter layer (103) is fixed in the first filter layer (102); a collecting tube cavity (12) is arranged in the second filter layer (103); the first filter layer (102) is a porous ceramic; the second filter layer (103) is activated carbon.

8. The large-scale organic domestic waste storage yard according to claim 1, wherein the discharge port (3) is provided with a raking device (32); the material raking device (32) comprises a telescopic device (33), two rotary gears (34) which are meshed with each other are connected to the telescopic device (33) in an axial mode, L-shaped raking claws (35) are fixedly connected to the rotary gears (34), and one rotary gear (34) is connected with a rotary motor (36).

9. A use method of a large organic domestic garbage storage yard is characterized by comprising the following steps:

step one, pour domestic waste into pan feeding mouth (8), the in-process that domestic waste descends to decompose, the moisture in the domestic waste permeates collection lumen (12) through filtration hole (11) infiltration on stirring stake (10) gradually at the in-process that infiltrates down, opens the absorption mode this moment: opening valves on the penetrating fluid recovery pipe (14) and the gas recovery pipe (17); closing a valve on the gas return line (38); the air pump (18) works, air in the stirring pile (10) is pumped to the air storage tank (19) to enable the interior of the stirring pile (10) to be in a negative pressure state, penetrating fluid and decomposition air in the garbage accumulation layer are filtered through the filtering holes (11) and then enter the collection pipe cavity (12) under the action of negative pressure and external pressure in the interior of the stirring pile, and the decomposition air is stored in the air storage tank (19) through the air collection system; the permeate is stored to a permeate collection tank (16) by a permeate recovery system;

step two, opening a gate (4) after the garbage is decomposed and settled to form clinker, raking the clinker out of a discharge hole (3) under the assistance of gravity and a raking device (32), and then collecting the clinker to prepare an organic fertilizer;

step three, when the mixing pile (10) needs to be cleaned, starting a gas transmission loosening mode, wherein the gas transmission loosening mode comprises the following steps: closing the valves on the permeate recycling pipes (14), and opening the valves on the gas return pipes (38) and the gas recycling pipes (17); the air pump (18) works, and pumps the air in the air storage tank (19) to the collection pipe cavity (12) to enable the collection pipe cavity (12) to be in a high-pressure state; the decomposed gas is blown back to clean the filter holes (11), and the decomposed gas is pumped back to the gas storage tank (19) through the circulating pump (30).

The technical field is as follows:

the invention belongs to the field of pollutant treatment, and particularly relates to a use method of a large-scale organic domestic garbage storage yard.

Background art:

the domestic garbage landfill is used for treating and disposing urban domestic garbage, is provided with an artificial impermeable membrane for preventing garbage leachate from leaking, is provided with leachate treatment or pretreatment facility equipment, and is used for operating, managing and maintaining, and finally closing a garbage treatment site meeting sanitary requirements. At present, the garbage landfill of the domestic garbage is still the most main method for solving the domestic garbage export in most cities in China.

However, the existing household garbage landfill has the following problems:

1. domestic garbage in China is mixed with a large amount of organic garbage, particularly after classification, the mixing proportion of the organic garbage is higher, but if fermentation tank technology treatment is adopted, compared with the production of large urban domestic garbage, the tank body treatment amount is extremely limited, the working environment is extremely bad when sundries are sorted before fermentation, drying is needed after fermentation treatment, and the problem of waste liquid treatment exists;

2. by adopting the landfill technology, because the decomposition and sedimentation of the organic garbage are obvious, the collapse accident is easily caused by the uneven degradation because the garbage landfill material components are unbalanced; meanwhile, the organic garbage is permanently buried and can not be reused, so that precious landfill site resources are occupied.

3. At present, the penetrating fluid of the refuse dump is absorbed by arranging a water outlet at the bottom of the refuse dump. However, the water outlet is easily blocked by a large pressure, and the infiltration liquid is concentrated at the lower part of the garbage, so that the humidity of the garbage at the bottom of the garbage yard is large, and therefore, if the garbage is taken out, a large amount of infiltration liquid flows out, and the surrounding environment such as underground water, rivers and the like is easily polluted.

4. The penetrating fluid which is continuously deposited is deposited at the bottom due to a large amount of penetrating fluid caused by organic garbage decomposition and natural rainfall, so that on one hand, the hydraulic pressure is increased, and the risk of soaking the impermeable layer and polluting underground water is greatly increased; on the one hand, the lower layer of garbage is easy to liquefy, and the resulting risk of collapse and dam collapse is caused, especially in the case of rainstorm.

5. Because the decomposition of organic garbage easily causes the accumulation of methane, the burning and explosion accidents occur, and the timely removal and collection are needed.

The invention content is as follows:

the invention discloses a large-scale organic domestic garbage storage yard, which ensures that organic garbage is in a dry state after being fully fermented at the bottom of the organic domestic garbage storage yard by arranging stirring piles with filtering holes from top to bottom in the process of simulating intestinal absorption, so that the treated garbage is dry and convenient to transport, the transportation difficulty and the transportation cost are reduced, and meanwhile, the pollution of penetrating fluid to the surrounding environment during transportation is prevented, and the large-scale organic domestic garbage storage yard can be used for manufacturing organic fertilizers. Meanwhile, the stirring pile provides longitudinal and gridding supporting strength for the filled garbage pile, stress is dispersed, and collapse risk caused by non-uniform degradation is prevented. The treatment site can be reconstructed by using abandoned soil, stone and ore abandoned pits, so that the construction cost is greatly reduced, and waste is changed into valuable.

In order to achieve the purpose, the invention provides the following technical scheme:

a large-scale organic domestic waste dump can be reformed by a waste pit, and comprises a waste accumulation pool, wherein an inclined plane is formed at the bottom of the waste accumulation pool, a discharge hole is formed in the side wall of the waste accumulation pool at the lowest part of the inclined plane, a gate is installed by matching with the discharge hole, and the gate is connected with a push-pull device;

impermeable layers are fixed at the bottom and the side wall of the garbage accumulation tank; a covering layer is fixed at the top of the garbage accumulation pool, and a feeding port is formed in the covering layer;

a foundation pile is fixed in the inclined slope and connected with a stirring pile, the stirring pile comprises a shell, a collecting pipe cavity is formed in the shell, and a plurality of filtering holes are formed in the shell from top to bottom; the filter holes are communicated with the collecting pipe cavity, the bottom of the collecting pipe cavity is communicated with a gas-liquid storage tank, the bottom of the gas-liquid storage tank is communicated with a penetrating fluid recovery system, and the upper part of the gas-liquid storage tank is communicated with a gas collecting system; the penetrating fluid recovery system comprises a penetrating fluid recovery pipe communicated with the bottom of the gas-liquid storage tank, and the penetrating fluid recovery pipe is communicated with a penetrating fluid collection tank through a water pump; the gas collection system comprises a gas recovery pipe communicated with the upper part of the gas-liquid storage tank, and the gas recovery pipe is communicated with a gas storage tank through a gas pump.

In a further improvement, the foundation pile is rotationally connected with a stirring pile; a rotating device is installed in the foundation pile, the rotating device is connected with an external gear, and an internal gear meshed with the external gear is fixed in the stirring pile;

the gas-liquid storage tank is positioned in the foundation pile, and the bottom of the collecting pipe cavity is fixedly provided with a communicating pipe communicated with the gas-liquid storage tank; a stirring structure is arranged outside the stirring pile; the penetrating fluid recovery pipe and the gas recovery pipe are both provided with valves.

In a further improvement, the stirring structure is a stirring rod or a spiral stirring blade or a stirring tooth; the rotating device is a rotating oil cylinder.

In a further improvement, the mixing pile is formed by connecting a plurality of mixing pile sub-bodies; the top of the stirring pile body is fixed with a sealing cover, and the sealing cover is provided with an electromagnetic valve.

In a further improvement, the push-pull device is a hydraulic oil cylinder; the feeding port is hinged with a cover door.

In a further improvement, a penetrating fluid recharging net pipe is fixed in the covering layer and is communicated with the penetrating fluid collecting pool through a circulating pump; the penetrating fluid recharging net pipe is also communicated with a plurality of spray heads; the penetrating fluid recharging net pipe is provided with a valve.

In a further improvement, a first filter layer is fixed in the shell, and a second filter layer is fixed in the first filter layer; a collecting tube cavity is arranged in the second filtering layer; the first filter layer is made of porous ceramic; the second filter layer is activated carbon.

The material scraping device is arranged in cooperation with the discharge hole; the material raking device comprises a telescopic device, two rotary gears which are meshed with each other are axially connected to the telescopic device, L-shaped raking claws are fixedly connected to the rotary gears, and one rotary gear is connected with a rotary motor.

A use method of a large organic domestic garbage storage yard comprises the following steps:

step one, pour domestic waste into the pan feeding mouth, the in-process that domestic waste descends to decompose, the moisture in the domestic waste collects the lumen through the filtration pore infiltration on the stirring stake gradually at the in-process of infiltration, opens the absorption mode this moment: opening valves on the permeate recycling pipe and the gas recycling pipe; closing a valve on the gas return pipe; the air pump works, the air pump pumps the gas in the mixing pile to the gas storage tank to enable the interior of the mixing pile to be in a negative pressure state, under the action of negative pressure and external pressure in the interior of the mixing pile, penetrating fluid and decomposed gas in the garbage accumulation layer enter the collection pipe cavity after being filtered by the filter holes, and the decomposed gas is stored in the gas storage tank through the gas collection system; the penetrating fluid is stored in a penetrating fluid collecting tank through a penetrating fluid recovery system;

step two, opening a gate after the garbage is decomposed and settled to form clinker, raking the clinker out of a discharge port under the assistance of gravity and a raking device, and then collecting the clinker to prepare an organic fertilizer;

and step three, when the stirring pile needs to be cleaned, starting a gas transmission loosening mode, wherein the gas transmission loosening mode comprises the following steps: closing the valve on the penetrating fluid recovery pipe, and opening the valve on the gas return pipe and the gas recovery pipe; the air pump works to pump the air in the air storage tank to the collecting pipe cavity so as to enable the collecting pipe cavity to be in a high-pressure state; the decomposed gas is back-blown to clean the filter holes, and the decomposed gas is pumped back to the gas storage tank through the circulating pump.

The invention has the following advantages:

1. the foundation pit (such as a mine pit, a slope on a mountain and the like) can be excavated by utilizing the natural terrain, and the construction method can be used for large-scale storage yards and is low in construction cost.

2. The stirring pile provides longitudinal and gridding supporting strength for the filled garbage pile, disperses stress and prevents the risk of collapse caused by non-uniform degradation.

3. The bottom layer penetrating fluid collection is changed into dispersed three-dimensional collection, so that the pollution and collapse risks caused by liquefaction of the garbage at the lower layer due to the descending and accumulation of the penetrating fluid are prevented.

4. The methane is dispersedly collected, so that the burning and explosion accidents are avoided.

5. The intestinal absorption is simulated, and the percolate is gradually absorbed and decomposed, so that the treated garbage is dried and convenient to transport.

6. Through the stirring overstock of a stirring pile system in the fermentation decomposition sedimentation process, part of mixed garbage can be crushed. Compared with a fermentation tank, fine decomposition before treatment is not needed, and the dry fermentation is adopted, so that the worry about pipeline blockage and bacterial poisoning caused by (antibacterial) impurities is avoided, and the treatment cost is greatly simplified.

Description of the drawings:

FIG. 1 is a schematic diagram of the general structure of the present invention;

FIG. 2 is a schematic view of the installation structure of the rotating device;

FIG. 3 is a schematic structural view of the raking device;

FIG. 4 is a schematic structural view of the connection of the mixing pile bodies;

FIG. 5 is a schematic view of a structure in which the stirring structure is a spiral stirring blade.

The specific implementation mode is as follows:

in order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following detailed description is made with reference to the accompanying drawings and specific embodiments.

The present invention is based on the following assumptions: the faults of the monitoring equipment are self-repairable faults, but not physical loss and unrepairable faults reaching the service life are all checked by workers and then replaced and repaired, and theoretically, the prediction of the method is not influenced.

As shown in fig. 1-3, the large-scale organic domestic waste storage yard comprises a waste accumulation pool 1, wherein an inclined plane 2 is formed at the bottom of the waste accumulation pool 1, a discharge hole 3 is formed in the side wall of the waste accumulation pool 1 at the lowest position of the inclined plane 2, a gate 4 is installed by matching with the discharge hole 3, and the gate 4 is connected with a push-pull device 5; the bottom and the side wall of the garbage accumulation pool 1 are both fixed with impermeable layers 6; a covering layer 7 is fixed at the top of the garbage accumulation pool 1, and a feeding port 8 is formed in the covering layer 7;

a foundation pile 9 is fixed in the inclined slope 2, the foundation pile 9 is connected with a stirring pile 10, the stirring pile 10 comprises a shell 101, a collecting pipe cavity 12 is formed in the shell 101, and a plurality of filtering holes 11 are formed in the shell 101 from top to bottom; the filtering holes 11 are communicated with the collecting tube cavity 12, the bottom of the collecting tube cavity 12 is communicated with a gas-liquid storage tank 13, the bottom of the gas-liquid storage tank 13 is communicated with a penetrating fluid recovery system, and the upper part of the gas-liquid storage tank is communicated with a gas collecting system; the penetrating fluid recovery system comprises a penetrating fluid recovery pipe 14 communicated with the bottom of the gas-liquid storage tank 13, and the penetrating fluid recovery pipe 14 is communicated with a penetrating fluid collecting tank 16 through a water pump 15; the gas collection system comprises a gas recovery pipe 17 communicated with the upper part of the gas-liquid storage tank 13, and the gas recovery pipe 17 is communicated with a gas storage tank 19 through a gas pump 18.

The foundation pile 9 is rotationally connected with a stirring pile 10; a rotating device 20 is installed in the foundation pile 9, an external gear 21 is connected with the rotating device 20, and an internal gear 22 meshed with the external gear 21 is fixed in the mixing pile 10;

the gas-liquid storage tank 13 is positioned in the foundation pile 9, and the bottom of the collection pipe cavity 12 is fixedly provided with a communicating pipe 23 communicated with the gas-liquid storage tank 13; a stirring structure is arranged outside the stirring pile 10; valves are installed on both the permeate recycling pipe 14 and the gas recycling pipe 17.

The stirring structure is a stirring rod 24 or a spiral stirring blade 25 or stirring teeth; the rotating device 20 is a rotating cylinder.

The push-pull device 5 is a hydraulic oil cylinder; a cover door 37 is hinged at the feeding port 8.

A penetrating fluid recharging net pipe 29 is fixed in the covering layer 7, and the penetrating fluid recharging net pipe 29 is communicated with the penetrating fluid collecting tank 16 through a circulating pump 30; the penetrating fluid recharging net pipe 29 is also communicated with a plurality of spray heads 31; the permeate recirculation network pipe 29 is provided with a valve.

A first filter layer 102 is fixed in the casing 101, and a second filter layer 103 is fixed in the first filter layer 102; a collection lumen 12 is arranged in the second filter layer 103; first filter layer 102 is a porous ceramic; the second filter layer 103 is activated carbon.

The matched discharge port 3 is provided with a raking device 32; the material raking device 32 comprises a telescopic device 33, two rotary gears 34 which are meshed with each other are connected to the telescopic device 33, L-shaped raking claws 35 are fixedly connected to the rotary gears 34, and one rotary gear 34 is connected with a rotary motor 36.

A use method of a large organic domestic garbage storage yard comprises the following steps:

step one, pouring the domestic garbage into the material inlet 8, and in the process of descending and decomposing the domestic garbage, gradually permeating water in the domestic garbage into the collection tube cavity 12 through the filtering holes 11 on the stirring piles 10 in the process of descending and permeating, and then starting an absorption mode: the valves on the permeate recovery pipe 14 and the gas recovery pipe 17 are opened; closing the valve on gas return line 38; the air pump 18 works, the air in the mixing pile 10 is pumped to the air storage tank 19, so that the interior of the mixing pile 10 is in a negative pressure state, under the action of negative pressure and external pressure in the interior of the mixing pile, penetrating fluid and decomposed air in the interior of the garbage accumulation layer are filtered through the filter holes 11 and then enter the collection pipe cavity 12, and the decomposed air is stored in the air storage tank 19 through the air collection system; the permeate is stored to the permeate collection tank 16 by the permeate recovery system;

step two, opening a gate 4 after the garbage is decomposed and settled to form clinker, raking the clinker out of a discharge port 3 under the assistance of gravity and a raking device 32, and then collecting the clinker to prepare an organic fertilizer;

step three, when the mixing pile 10 needs to be cleaned, starting a gas transmission loosening mode, wherein the gas transmission loosening mode comprises the following steps: closing the valves on permeate recovery line 14, opening the valves on gas return line 38 and gas recovery line 17; the air pump 18 works to pump the air in the air storage tank 19 to the collection tube cavity 12, so that the interior of the collection tube cavity 12 is in a high-pressure state; the decomposed gas is blown back to clean the filter holes 11, and the decomposed gas is pumped back to the gas storage tank 19 by the circulation pump 30.

A pressure gauge is attached to the gas tank 19, and when the pressure gauge reaches a predetermined threshold value, that is, when the gas tank 19 is full, the gas tank 19 is replaced, and the full gas tank 19 is sent to a gas purification station, where combustible gas such as methane is separated and used as fuel.