Novel perishable garbage biological drying aeration system

Abstract

The utility model provides a novel perishable garbage bio-drying aeration system, which is characterized in that a fermentation bin body is arranged in a barrel of an outer shell of a tower-type treatment device, the aeration system comprises an aeration and suction unit, the aeration and suction unit is provided with aeration and suction equipment outside the barrel, the aeration and suction equipment is connected with an aeration and suction pipe, and the aeration and suction pipe is connected with the tower-type treatment device. Layered aeration areas are arranged in the fermentation bin body of the cylinder body, a first pipeline is arranged in each layer of aeration area, and the other end of the aeration pipe penetrates through the cylinder body to be communicated with the first pipeline. According to the tower-type perishable garbage biological drying device, aeration and waste gas suction are completed through cooperation of the aeration and suction units which are arranged in a layered mode and the gas collection unit at the top, materials are mixed and aerated by combining the stirring part, rotating around the center, of the stirring unit, aerobic fermentation flora in an aeration system is bred, the biological drying efficiency of tower-type perishable garbage is improved, and the biological drying effect is improved. And meanwhile, the top treatment unit dehumidifies and purifies the waste gas and then discharges the waste gas after reaching the standard, the influence on the surrounding environment can be reduced, and the device can adapt to drying treatment of large-scale perishable garbage.

Description

Technical Field

[0001] The utility model relates to the technical field of bio-drying treatment of perishable garbage, and in particular to a novel bio-drying aeration system for perishable garbage. Background Art

[0002] The treatment of perishable waste has always been one of the difficult problems in urban waste treatment. Due to its high moisture content and easy decay and deterioration, traditional treatment methods such as landfill and incineration face many problems. The landfill method may cause soil and groundwater pollution, while the incineration method may produce toxic and harmful gases, causing secondary damage to the environment. Therefore, it is urgent to develop a new and environmentally friendly method for the treatment of perishable waste.

[0003] Biodrying is an emerging aerobic microbial treatment technology for organic solid waste. It quickly removes moisture through the heat of biological fermentation, has a small demand for external heat energy, and has a very outstanding reduction effect. It is an effective way to solve the problem of perishable waste disposal and rationally allocate existing facility resources in the eastern coastal areas of my country where incineration is the main method of disposal.

[0004] At present, the biological drying process for perishable garbage mainly includes drum-type and tower-type treatment processes. A large stirring device is generally installed in the middle to achieve full mixing through frequent stirring, supplemented by forced ventilation and oxygen supply. Compared with the traditional strip-stack treatment process, it is more efficient. The drum-type process is relatively limited in processing scale due to the manufacturing cost and difficulty of the drum structure. The tower-type treatment process can adopt reinforced concrete structure as the main body, which has low construction cost and adjustable scale. It is more adaptable and can meet the current treatment needs of huge amounts of perishable garbage. However, due to the high material stacking in the tower treatment process, the aeration of the existing treatment technology mainly relies on the aeration nozzles arranged at the bottom, and the actual aeration effect is poor, which greatly affects the efficiency of biological drying and limits the expansion and promotion of the existing tower treatment process, so that the existing biological drying system for perishable garbage has limitations. Utility Model Content

[0005] The utility model aims to provide an aeration system which can enhance the aeration and waste gas suction efficiency so as to improve the rapid drying and harmless treatment of perishable garbage.

[0006] To this end, the utility model adopts the following technical solutions:

[0007] A novel bio-drying aeration system for perishable garbage comprises a fermentation silo body arranged inside a cylinder of an outer shell of a tower treatment device, the aeration system comprising an aeration and suction unit, the aeration and suction unit being provided with an aeration and suction device outside the cylinder, the aeration and suction device being connected with an aeration and suction pipe, a layered aeration zone being arranged inside the fermentation silo body of the cylinder, a first pipeline being arranged in each layer of the aeration zone, the other end of the aeration and suction pipe passing through the cylinder body is connected with the first pipeline, and is used to supply oxygen for aerobic fermentation of materials in the fermentation silo body; a feed inlet is arranged at the top of the cylinder body, a discharge port which can be opened or closed is arranged on the cylinder wall of each layer of the aeration zone of the cylinder body, a gas collecting unit and a treatment unit are arranged inside and outside the cylinder body respectively, the gas collecting unit is connected with the treatment unit, an air suction pipe is further connected with the aeration and suction device, the other end of the air suction pipe is connected with the treatment unit, and is used to draw the escaped waste gas and water vapor to the treatment unit; a stirring unit is arranged inside the fermentation silo body, a stirring component is arranged in each layer of the aeration zone of the stirring unit, and aeration holes are arranged on the stirring component.

[0008] Furthermore: a circulating alternating feeding device is provided between the discharge ports on the same side for mixing the materials in each layer of aeration zones.

[0009] Furthermore: the aeration zone is arranged in layers in the height direction of the cylinder, a feed inlet is arranged on the top of the cylinder, and the processing unit is installed on the top of the cylinder and is offset from the feed inlet.

[0010] Furthermore, the aeration and suction pipe is arranged around the inner wall of the fermentation bin, and an inward opening is arranged on the pipe wall of the aeration and suction pipe.

[0011] Furthermore, the aeration and suction equipment is provided with an aeration and suction pump in layers outside the cylinder and in the aeration zone, and the aeration and suction pump is connected with the first pipeline of the corresponding layer through an aeration and suction pipe.

[0012] Furthermore: the air intake pipe includes a segmented pipe, and the segmented pipe connects the aeration and suction pumps of adjacent layers and the aeration and suction pumps of the top layer and the processing unit.

[0013] An aeration device is arranged in the stirring unit, and the stirring component comprises a stirring shaft rotating around the center of each layer of aeration zone. The aeration holes are located on the stirring shaft and are connected with the aeration device through a pipeline.

[0014] Furthermore: the cylinder is provided with a gas collecting unit on the top of its fermentation bin, and the gas collecting unit is connected to the processing unit.

[0015] Furthermore: the gas collecting unit includes a second pipe, the second pipe is located in the lower area of ​​the processing unit and is fixedly connected to the top wall of the fermentation bin body, the second pipe is provided with an outward opening on its pipe wall, the lower part of the processing unit is provided with a hole, the hole is provided with a connecting pipe, and the bottom end of the connecting pipe passes through the top wall of the fermentation bin body and is connected to the second pipe.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] The utility model completes aeration and waste gas extraction through the cooperation of the layered aeration and suction units and the top gas collection unit, and combines the mixing unit with the stirring parts rotating around the center to mix materials and aerate, so as to propagate the aerobic fermentation bacteria in the aeration system and improve the efficiency of the biological drying of tower-type perishable garbage. At the same time, the top treatment unit dehumidifies and purifies the waste gas and discharges it in compliance with the standards, which can reduce the impact on the surrounding environment and can adapt to the drying treatment of large-scale perishable garbage. The system is simple, efficient and low-cost. In addition, the utility model continuously circulates the layered discharge ports to alternately discharge materials and the top feed port to mix and feed materials while the stirring units of each layer mix materials and aerate, so as to ensure that the materials are fully mixed and loosened, and enhance the aeration effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is an axonometric diagram of the aeration system of the utility model;

[0019] Figure 2 It is a front view of the aeration system of the utility model;

[0020] Figure 3 It is a top view of the aeration system of the utility model;

[0021] Figure 4 This is a new type of aeration system Figure 3 AA section view in;

[0022] Figure 5 This is a new type of aeration system Figure 3 BB section view in;

[0023] Figure 6 It is a front view of the stirring unit and the stirring shaft of the utility model;

[0024] Figure 7 This is a schematic diagram of the connection of the pipes in the cylinder of the aeration system of the utility model;

[0025] Figure 8 This is a new type of aeration system Figure 7 The enlarged schematic diagram of point C in FIG.

[0026] Fig. 9 This is a new type of aeration system Figure 7 The enlarged schematic diagram of point D in FIG.

[0027] The markings in the accompanying drawings are: 1-aeration unit, 101-aeration equipment, 102-aeration pipe, 103-first pipeline, 1031-inward opening, 104-intake pipe, 2-stirring unit, 21-stirring shaft, 201-aeration hole, 3-gas collecting unit, 301-second pipeline, 302-outward opening, 303-hole, 4-processing unit, 5-discharge port, 6-feed port, 7-cylinder. DETAILED DESCRIPTION

[0028] The present invention is further described below in conjunction with the accompanying drawings and embodiments, but they are not intended to limit the present invention.

[0029] like Figure 1-9 As shown, a novel aeration system for biological drying of perishable garbage is provided, wherein a fermentation bin is arranged inside a cylinder 7 of an outer shell of a tower treatment device, wherein the bottom surface of the cylinder 7 is round and the whole is in the shape of a long cylinder; the aeration system comprises an aeration and suction unit 1, wherein the aeration and suction unit 1 is provided with an aeration and suction device 101 outside the cylinder 7, and an aeration and suction pipe 102 is connected to the aeration and suction device 101, and a layered aeration zone is arranged inside the fermentation bin of the cylinder 7, wherein the aeration zone is layered in the height direction of the cylinder 7, and is divided into three equally divided aeration zones at the equally divided points in the height direction of the cylinder 7, and a first pipe 103 is arranged in each layer of the aeration zone, and the other end of the aeration and suction pipe 102 passes through the cylinder 7 and is connected to the first pipe 103, so as to supply oxygen for aerobic fermentation of materials in the fermentation bin, and at the same time, the cylinder The top of the cylinder 7 is provided with a feed port 6 and a processing unit 4, which is staggered. The feed port 6 is arranged at the central position of the top of the cylinder 7, and the processing unit 4 is evenly arranged outside the feed port 6 at the top of the cylinder 7; the cylinder 7 is provided with a gas collecting unit 3 on the top of its fermentation bin, and the gas collecting unit 3 is connected to the processing unit 4; the aeration device 101 is also connected to an air suction pipe 104, and the other end of the air suction pipe 104 is connected to the processing unit 4, which is used to suck the escaped waste gas and water vapor to the processing unit 4; the cylinder 7 is provided with an openable or closed discharge port 5 on the cylinder wall of each layer of the aeration zone, and a stirring unit 2 is provided in the fermentation bin, and the stirring unit 2 is provided with a stirring component in each layer of the aeration zone, and the stirring component is provided with an aeration hole 201, and aeration is started while stirring.

[0030] In this embodiment, the treatment units 4 are arranged in correspondence with the number of the aeration and suction units 1, so that the aeration and suction units 1 on the same side of the overall tower treatment device have aeration and waste gas suction functions, and the sucked waste gas is dehumidified and purified by the treatment units 4 on the same side so that it meets the standards for discharge, and the aeration and waste gas suction of the tower treatment device is ensured in a timely and effective manner in terms of power and achievable efficiency.

[0031] In this embodiment, the aeration and suction pipe 102 surrounds and is closely arranged on the inner wall of the fermentation bin, and the aeration and suction pipe 102 is located above the discharge port 5. The aeration and suction pipe 102 is evenly provided with centripetal inward openings 1031 on the inner wall of the aeration and suction pipe 102. At the same time, the aeration and suction device 101 is provided with an aeration and suction pump in layers outside the cylinder 7 and in the aeration zone. The aeration and suction pump has the functions of aeration and suction. The aeration and suction pump is connected to the first pipeline 103 of the corresponding layer through the aeration and suction pipe 102, so as to perform aeration and exhaust gas suction of the tower treatment device.

[0032] In this embodiment, the suction pipe 104 includes a segmented pipe, which connects the aeration pumps of adjacent layers and the aeration pump of the top layer with the processing unit 4, that is, the suction pipe 104 is arranged along the height direction of the cylinder 7, connected to the aeration pumps of different layers at the same position on the plane, and finally connected to the processing unit 4 at the top.

[0033] The aeration and suction pumps of each layer compress the air and flush it into the first pipe 103 through the aeration and suction pipe 102, and supply oxygen to the fermented materials in the fermentation bin through the inward opening 1031 on the annular first pipe 103. The waste gas and water vapor generated during the fermentation process can also be sucked by the aeration and suction pumps and sequentially passed through the first pipe 103, the aeration and suction pipe 102 and the suction pipe 104 to the processing unit 4. The aeration and suction pumps of the same layer are all connected to the first pipe 103 of the corresponding layer, and aeration is performed at the same time to ensure the aeration pressure and aeration volume.

[0034] The aeration and suction units 1 and the discharge ports 5 are evenly and alternately arranged on the outer periphery of the cylinder 7 of the tower treatment device. In this embodiment, the cylinder 7 is provided with a platform on the outer periphery of each layer of the aeration zone for further placing or fixing the aeration and suction pump, and the platform needs to meet the walking and transportation requirements of maintenance personnel and small equipment.

[0035] In this embodiment, the stirring component is provided with a rotation center at the center of each layer of aeration zone, so that the stirring component of each layer can rotate around the rotation center, stir the materials of each layer to mix, and at the same time push the fermented materials in the fermentation bin to move to the discharge port 5 of the same layer; an aeration device is provided in the stirring unit 2, and the stirring component includes a stirring shaft 21 rotating around the center of each layer of aeration zone, and the aeration hole 201 is located on the stirring shaft 21 and is connected to the aeration device through a pipeline. In addition, a circulating alternating feeding device is provided between the discharge ports 5 on the same side, and the alternating feeding device includes a hopper, a guide rail and a lifting device. The guide rail is vertically arranged on the outside of the cylinder 7, and the hopper is installed in the guide rail. Through the connection between the hopper and the lifting device, the hopper is driven to move to the discharge port 5 of the target layer where the material is required to be discharged, and by opening the baffle at the discharge port 5, part of the material in the fermentation bin moves to the hopper, and moves to the top under the action of the lifting device, and after mixing with fresh perishable garbage, enters the fermentation bin again through the feed port 6 for fermentation.

[0036] In this embodiment, the gas collecting unit 3 includes an annular second pipe 301, which is arranged concentrically with the feed port 6. The second pipe 301 is located in the lower area of ​​the processing unit 4 and is fixedly connected to the top wall of the fermentation bin. The second pipe 301 is evenly provided with outward openings 302 on its outer peripheral side wall. A hole 303 is opened in the lower part of the processing unit 4, and a connecting pipe is provided on the hole 303. The bottom end of the connecting pipe passes through the top wall of the fermentation bin and is connected to the second pipe 301. The gas collecting unit 3 is connected to the processing unit 4 through the connecting pipe.

[0037] See also Figure 1-9 When the tower treatment device is aerated through the aeration system, the specific contents are as follows:

[0038] While the stirring part of the stirring unit 2 rotates around the center of the mixing layer, the fermented material is aerated through the aeration holes 201 on the stirring shaft 21. When the stirring part rotates to the vicinity of the discharge port 5, the discharge port 5 opens and begins to discharge. The discharge ports 5 of each layer discharge alternately in the same direction. The discharge of each layer is lifted to the top, mixed with fresh perishable garbage, and then enters the tower treatment device again through the feed port 6 for fermentation. While stirring and discharging, the aeration unit 1 now draws the escaped waste gas and water vapor into the treatment unit 4 arranged at the top. After the discharge port 5 is closed, aeration is performed again to supply oxygen for aerobic fermentation of the material in the fermentation bin. The gas collection unit 3 at the top of the tower treatment device is intermittently started to draw the waste gas and water vapor through the connecting pipe to the treatment unit 4. The treatment unit 4 dehumidifies and purifies the nearly saturated waste gas and discharges it in compliance with the standards.

[0039] The above embodiment is only a preferred technical solution of the present invention. Those skilled in the art should understand that the technical solutions or parameters in the embodiments can be modified or replaced without departing from the principle and essence of the present invention, and all should be included in the protection scope of the present invention.

Claims

1. A novel bio-drying and aeration system for perishable waste, wherein a fermentation chamber is arranged inside a cylinder (7) of an outer shell of a tower treatment device, and is characterized in that: The aeration system comprises an aeration unit (1), wherein the aeration unit (1) is provided with an aeration device (101) outside a cylinder (7), an aeration pipe (102) is connected to the aeration device (101), a layered aeration zone is provided in the fermentation chamber of the cylinder (7), a first pipe (103) is provided in each layer of the aeration zone, and the other end of the aeration pipe (102) passes through the cylinder (7) and is connected to the first pipe (103); The top of the cylinder (7) is provided with a feed inlet (6); the cylinder wall of each aeration zone of the cylinder (7) is provided with a discharge port (5) that can be opened or closed; the inside and outside of the cylinder (7) are respectively provided with a gas collection unit (3) and a processing unit (4); the gas collection unit (3) is connected to the processing unit (4); the aeration device (101) is also connected to an air intake pipe (104); the other end of the air intake pipe (104) is connected to the processing unit (4); A stirring unit (2) is arranged in the fermentation bin, and a stirring component is arranged in each aeration zone of each layer of the stirring unit (2), and aeration holes (201) are arranged on the stirring component.

2. A novel bio-drying aeration system for perishable waste according to claim 1, characterized in that: A circulating alternating feeding device is provided between the discharge ports (5) on the same side, for mixing the materials in each aeration zone.

3. A novel bio-drying aeration system for perishable waste according to claim 2, characterized in that: The aeration zone is arranged in layers in the height direction of the cylinder (7), and the processing unit (4) is installed on the top of the cylinder (7) and is offset from the feed port (6).

4. A novel bio-drying aeration system for perishable waste according to any one of claims 1 to 3, characterized in that: The aeration and suction pipe (102) is arranged around the inner wall of the fermentation bin, and an inward opening (1031) is arranged on the pipe wall of the aeration and suction pipe (102).

5. A novel bio-drying aeration system for perishable waste according to claim 2, characterized in that: The aeration and suction equipment (101) is provided with an aeration and suction pump in a layer outside the cylinder (7) and in a layer with the aeration zone. The aeration and suction pump is connected to the first pipeline (103) of the corresponding layer through an aeration and suction pipe (102).

6. A novel bio-drying aeration system for perishable waste according to claim 5, characterized in that: The suction pipe (104) comprises a segmented pipe, and the segmented pipe connects the aeration pumps of adjacent layers and the aeration pump of the top layer to the processing unit (4).

7. A novel bio-drying aeration system for perishable waste according to any one of claims 1 to 3, characterized in that: An aeration device is arranged in the stirring unit (2), and the stirring component comprises a stirring shaft (21) rotating around the center of each layer of aeration zone. The aeration hole (201) is located on the stirring shaft (21) and is connected to the aeration device through a pipeline.

8. A novel bio-drying aeration system for perishable waste according to claim 2, characterized in that: The gas collecting unit (3) comprises a second pipe (301), the second pipe (301) is located in the lower area of ​​the processing unit (4) and is fixedly connected to the top wall of the fermentation bin body, the second pipe (301) is provided with an outward opening (302) on its pipe wall, the lower part of the processing unit (4) is provided with a hole (303), the hole (303) is provided with a connecting pipe, and the bottom end of the connecting pipe passes through the top wall of the fermentation bin body and is connected to the second pipe (301).

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