A perishable garbage biological drying treatment system and a method for operating the same

Abstract

The application provides a novel perishable garbage biological drying treatment system, a tower type treatment device comprising a cylinder, a feeding device, a distributing device, a discharging system, an aeration oxygen supply dehydration system, the feeding device is arranged at the top of the cylinder and is communicated with a fermentation bin in the cylinder, the distributing device is arranged at the top of the fermentation bin directly below the outlet of the feeding device, the discharging system is provided with a plurality of layered treatment units in the vertical direction of the cylinder, the treatment units are arranged in layers and are separated by support beams in the fermentation bin, and the support beams are provided with a plurality of fermentation units in the circumferential direction of the cylinder. The application realizes the sufficient mixing of the materials in the fermentation bin through the layered staggered discharging and mixed feeding circulation, trains and domesticates a single high-temperature fermentation bacterial group for the purpose of dehydration and reduction, simplifies the fermentation process, greatly improves the drying speed of the perishable garbage, and is applicable to the drying treatment of large-scale perishable garbage.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of perishable garbage biological drying treatment, and particularly relates to a novel perishable garbage biological drying treatment system and a running method thereof. BACKGROUND

[0002] At present, composting and anaerobic fermentation are mainly used for treating perishable garbage, but the perishable garbage in China is characterized by high salt, high oil, high moisture content and various types. The product quality obtained by using the composting method for treatment is poor, and the product cannot be directly applied as fertilizer to farmland or municipal greening, so the technology popularization is limited. The anaerobic fermentation treatment can produce biogas to realize resource utilization, but the remaining sludge and liquid are more difficult to treat, and improper treatment will cause greater pollution. In order to solve the problem of treating perishable garbage, in recent years, biological drying technology has developed rapidly. Through biological fermentation, water is quickly removed by heat, the demand for external heat energy supplement is small, the reduction effect is very outstanding, and the low-moisture product can be used as combustion-supporting material or generated refuse-derived fuel RDF, which has broad market application prospects.

[0003] At present, the biological drying treatment technology mainly adopts strip pile type and roller type treatment processes. The strip pile type treatment process stacks the fermented materials into strips in sequence, and the biological aerobic fermentation process is intensified by aeration and mechanical turning, so that water is quickly removed to realize drying. However, this process has a large occupied area, waste gas is difficult to collect and treat, and the use and popularization are relatively limited. In the roller type treatment process, a large stirring device or a rotatable roller is arranged in the middle, and the mixing is realized by frequent stirring, supplemented by forced ventilation and oxygen supply. Compared with the strip pile type treatment process, the efficiency is higher, but the scale is difficult to expand due to the mixing and structure manufacturing limitations, and the process cannot meet the treatment demand of a large amount of perishable garbage at the present stage. Therefore, there is an urgent need for a system which is efficient and suitable for large-scale perishable garbage drying treatment. SUMMARY

[0004] The first object of the present application is to provide a treatment system which can improve the treatment efficiency of the biological drying process. To this end, the present application adopts the following technical solution:

[0005] The application discloses a novel perishable garbage biological drying treatment system, and a tower type treatment device comprises a cylinder, a feeding device, a distributing device, a discharging system and an aeration oxygen supply and dehydration system, the feeding device is arranged at the top of the cylinder and communicates with a fermentation bin in the cylinder, the distributing device is arranged at the top of the fermentation bin directly below the outlet of the feeding device, the discharging system is provided with a plurality of layered treatment units in the vertical direction of the cylinder, the treatment units are arranged in the fermentation bin in a separated mode and are supported by support beams, the support beams are provided with a plurality of fermentation units in the circumferential direction of the cylinder, a stirring and discharging unit is arranged on the support beam and rotates around the middle part of the cylinder in the circumferential direction, a discharging port is arranged on the treatment unit corresponding to the fermentation unit on the cylinder, a feeding device connected with the feeding device is arranged outside the discharging port, the single discharging port of each treatment unit is divided into a discharging area and a closed area in the opened state of the discharging port, and the discharging area of each treatment unit projects and covers the closed area of the remaining treatment units.

[0006] Further, the feeding device forms a feeding port at the top of the cylinder, and a crushing device is arranged above the feeding port.

[0007] Further, the distributing device comprises a grid frame, and a distributing blade is arranged on the grid frame.

[0008] Further, a closable baffle door is arranged on the discharging port, a feeding track is arranged outside the discharging port, and a hopper is movably arranged on the feeding track.

[0009] Further, the stirring and discharging unit comprises a rotating device arranged at the center of the treatment unit, and a blade screw is arranged on the rotating device in an inclined mode.

[0010] Further, the aeration oxygen supply and dehydration system is provided with an annular pipe network in the treatment unit, the annular pipe network is provided with holes, an aeration and suction device is arranged outside the cylinder, and an air suction pipe connected with the waste gas collection and treatment system is arranged on the aeration and suction device.

[0011] Further, the waste gas collection and treatment system and the waste water collection and treatment system are connected through pipelines, the waste gas collection and treatment system comprises a waste gas collection unit and a waste gas treatment unit, the waste gas collection unit is provided with a negative pressure collection pipe network at the top of the fermentation bin, and the waste gas treatment unit is located at the top of the outer side of the cylinder and is provided with a negative pressure collection pipeline connected with the negative pressure collection pipe network.

[0012] Further, the waste water collection and treatment system is provided with a drainage body in the fermentation bin, and the drainage body is provided with a water permeable pipe.

[0013] Further: the processing unit of the middle region is connected outside the discharge port into the finished product area.

[0014] The second object of the application is to provide an operation method for accelerating material mixing and fermentation.

[0015] An operation method of a novel perishable garbage biological drying treatment system, comprising the following steps:

[0016] S1: The perishable garbage is put into the fermentation bin through the feeding device, and the perishable garbage is crushed into 3-5cm material through the crushing device, and then the material is mixed into the processing unit through the distribution device to start fermentation.

[0017] S2: During the fermentation process, the overall stirring and mixing of the material in the barrel fermentation bin is realized by repeatedly discharging and feeding, and the fermented material discharged from the discharge port of each layer processing unit enters the fermentation bin through the feeding track and the feeding device. The fermented material and the perishable garbage are mixed and then put into the feeding device, and the mixed material is uniformly mixed and spread on the surface of the fermented material in the fermentation bin.

[0018] S3: During the discharging process, one of the discharge ports of each layer of the processing unit is opened, and when the side discharge port is in the open state, the discharge ports of the remaining layers of the processing unit are staggered in the projection plane to fully mix the material near the opened side discharge port with the continuously falling material above.

[0019] S4: During the discharging process, the aeration oxygen supply and dehydration system is started, and the annular pipe network in the region corresponding to the discharging position starts aeration to supply oxygen for the fermentation of the nearby material, while the water vapor generated by the fermentation of high temperature is taken out, and part of the heat is taken out at the same time, so as to avoid the influence of the local high temperature of the material on the reproduction of the bacterial population.

[0020] S5: The waste gas is collected by the waste gas collection unit under negative pressure and enters the waste gas treatment unit, the waste gas with high water content and near saturation is dehydrated and purified to meet the standard high discharge, and the wastewater generated in the fermentation process is collected and treated by the wastewater collection and treatment system, and discharged after meeting the standard.

[0021] Compared with the prior art, the application has the following beneficial effects:

[0022] The application realizes the full mixing of the material in the bin by layering and staggered discharging and mixed feeding circulation, and for the purpose of dehydration and reduction, a single high-temperature fermentation bacterial population is cultivated and domesticated, the fermentation process is simplified, the drying speed of the perishable garbage is greatly improved, and the application can be applied to large-scale drying treatment of perishable garbage. The perishable garbage is mixed with the layering discharge and then fed, and no additional bacterial agent is needed except for the start-up stage, which can effectively save the treatment cost. Attached Figure Description

[0023] Figure 1 This is an elevation view of the processing system of the present invention;

[0024] Figure 2 This is a cross-sectional view of layer a of the processing system of the present invention;

[0025] Figure 3 This is a cross-sectional view of layer b of the processing system of the present invention;

[0026] Figure 4 This is a cross-sectional view of layer c of the processing system of the present invention;

[0027] Figure 5 This is an elevation view of the fabric-making device of the present invention;

[0028] Figure 6 This is a top view of the fabric-making device of the present invention;

[0029] Figure 7 This is an isometric view of the material discharge system of the present invention;

[0030] Figure 8 This is an isometric view of the discharge system of the present invention;

[0031] Figure 9 This is an isometric view of the hopper of the discharge system of the present invention;

[0032] Figure 10 This is an isometric view of the mixing and discharging unit of the present invention;

[0033] Figure 11 The mixing and discharging unit of this invention is in Figure 10 Enlarged diagram of point A in the diagram;

[0034] Figure 12 This is an elevation view of the internal structure of the aeration and oxygen supply dehydration system of the present invention;

[0035] Figure 13 The aeration and oxygen supply dehydration system of this invention is in Figure 12 Enlarged diagram of point B in the image;

[0036] Figure 14 The aeration and oxygen supply dehydration system of this invention is in Figure 12 Enlarged diagram of point C in the diagram;

[0037] Figure 15 This is a cross-sectional view of the waste gas collection and treatment system of the present invention;

[0038] Figure 16 This is an isometric view of the waste gas collection and treatment system of the present invention;

[0039] Figure 17 The waste gas collection and treatment system of this invention is inFigure 16 Enlarged diagram of point D in the diagram;

[0040] Figure 18 This is a cross-sectional view of the drainage body of the waste gas collection and treatment system of the present invention.

[0041] The labels in the attached diagram are as follows: 1. Cylinder body; 2. Top feeding device; 21. Feed inlet; 3. Fabric distribution device; 31. Grid frame; 32. Feeding blade; 33. Rotating shaft; 4. Discharge system; 4. Support beam; 41. Discharge port; 42. Hopper; 421. Baffle gate; 422. Slider; 423. Guide rail; 424. Rotating device; 431. Blade-type auger; 432. Blade; 433. Aeration and oxygen supply dehydration system; 5. Ring pipe network; 51. Aeration and suction equipment; 52. Suction pipe; 53. Aeration and suction pipe; 54. Waste gas collection and treatment system; 6. Waste gas collection unit; 61. Negative pressure collection pipe network; 611. Waste gas treatment unit; 62. Negative pressure collection pipe; 621. Waste gas collection and treatment system; 7. Drainage body; 71. Permeable pipe; 72. Capillary drainage belt; 73. Water collection pipe; 74. Detailed Implementation

[0042] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0043] like Figures 1-18 As shown, a novel biological drying system for perishable waste includes a tower-type treatment device comprising a cylinder 1, a feeding device 2, a spreading device 3, a discharging system 4, and an aeration and dehydration system 5. The feeding device 2 is located at the top of the cylinder 1 and communicates with the fermentation chamber inside the cylinder 1. The spreading device 3 is located at the top of the fermentation chamber directly below the outlet of the feeding device 2. The discharging system 4 has several layered treatment units arranged along the height of the cylinder 1. Each layer of treatment units is separated by support beams 41 within the fermentation chamber. Several fermentation units are arranged on the support beams 41 along the circumference of the cylinder 1, and the support beams 41 are equipped with a winding mechanism around the cylinder. The mixing and discharging unit rotates in the circumferential direction in the middle of the body 1. The processing unit is provided with a discharge port 42 on the body 1 corresponding to the fermentation unit. A feeding device connected to the feeding device 2 is provided outside the discharge port 42. When the discharge port 42 of each processing unit is in the open state, it is divided into a discharge area and a closed area. The discharge area of ​​each processing unit covers the closed area of ​​the other processing units in the projection. The top and bottom of the body 1 are respectively provided with a waste gas collection and treatment system 6 and a wastewater collection and treatment system 7. The waste gas collection and treatment system 6 and the wastewater collection and treatment system 7 are connected to the fermentation chamber to form a dehydration and volume reduction state for the material in the fermentation chamber.

[0044] In this embodiment, the processing units of the discharge system 4 are provided with three layers, such as the a-layer discharge port located in the upper layer, the b-layer discharge port located in the middle layer, and the c-layer discharge port located in the lower layer. The layered discharge ports are arranged uniformly and symmetrically around the periphery of the cylinder 1 in the plane, such as the a1 port, a2 port, a3 port, and a4 port of the a-layer discharge port, which are arranged uniformly and symmetrically along the edge in the plane, the b1 port, b2 port, b3 port, and b4 port of the b-layer discharge port, which are arranged uniformly and symmetrically along the edge in the plane, and the c1 port, c2 port, c3 port, and c4 port of the c-layer discharge port, which are arranged uniformly and symmetrically along the edge in the plane. According to the arrangement of each layered discharge port, the cylinder 1 is divided into each fermentation zone with the symmetric axis of the cylinder 1 as the center axis, such as the a1 port of the a-layer discharge port corresponding to the a1 zone fermentation unit, the a2 port corresponding to the a2 zone fermentation unit, the a3 port corresponding to the a3 zone fermentation unit, and the a4 port corresponding to the a4 zone fermentation unit, which divide the processing units of the corresponding layer into four equal parts. Each zone fermentation unit can be divided according to the cross-shaped support beam 41 to form a material falling area between the support beam 41 notch and the fermentation bin wall. The b-layer and c-layer are arranged in the same way as the a-layer, which will not be described in detail here, but it is still necessary to explain that because the a-layer, b-layer, and c-layer are staggered discharge designs, the upper fermentation unit and discharge port are arranged in sequence along the circumferential direction of the cylinder 1 with the lower fermentation unit and discharge port, so that for example, a1 port and b1 port and c1 port are opened at the same time, a1 port and b1 port and c1 port are located in different positions in the projection plane, while b1 port and c1 port are located in different positions in the projection plane from a1 port, to achieve staggered layered discharge.

[0045] That is, a1, b1, and c1 are staggered arranged in the vertical projection plane, that is, b1 corresponds to a2 in the vertical projection plane, and c1 corresponds to a3.

[0046] In this embodiment, the feeding device 2 forms a feeding port 21 at the top of the cylinder 1, and the crushing device is arranged above the feeding port 21.

[0047] In this embodiment, the distributing device 3 includes a grid frame 31, and the grid frame 31 is provided with an inclined guide portion that can guide the perishable garbage fragments. At the same time, the grid frame 31 is provided with a drivable rotating shaft 33 at the center top thereof, and the rotating shaft 33 is provided with a material pushing blade 32, so as to push the material to the periphery after feeding from the center feeding port 21, thereby uniformly distributing the material.

[0048] In this embodiment, the discharge port 42 is provided with a closable door 422, the bottom of the door 422 is pivotally connected with the sidewall of the discharge port 42, and the door 422 is provided with a driving device for rotating the door 422. The feeding device is provided with a feeding track outside the discharge port 42, the feeding track includes vertical guide rails 424 arranged on both sides of the discharge port 42, and a hopper 421 is movably arranged on the feeding track, the hopper 421 is provided with sliding blocks 423 on the side surfaces, and when the hopper 421 moves downward, the door 1 is rotated around the pivot to open the door 1, and the fermented material is discharged into the hopper 201 under the action of the stirring and discharging unit, and the fermented material is mixed with the fresh perishable waste in the fermentation chamber under the action of the lifting device.

[0049] In this embodiment, the stirring and discharging unit includes a rotating device 431 arranged in the center of the processing unit, the rotating device 431 is arranged on the support beam 41, the rotating device 431 is arranged in the central region of the fermentation chamber, and a blade auger 432 is arranged on the rotating device 431 and inclined upward. In order to enable the blade auger 432 to rotate around the pivot and rotate around the center of the rotating device 431, driving devices are arranged on the rotating device 431 and the pivot. Since the blades 433 of the blade auger 432 are arranged in a spiral, the blade auger 432 can rotate around the pivot and push the material to move in the direction of the discharge port 42 to start discharging.

[0050] In this embodiment, the aeration oxygen supply and dehydration system 5 is provided with a ring pipe network 51 in the processing unit, the ring pipe network 51 can be arranged in the middle region of the fermentation chamber, but more preferably, the ring pipe network 51 is arranged around and closely arranged on the inner wall of the fermentation chamber, the ring pipe network 51 is arranged above the discharge port 42, the ring pipe network 51 is provided with a plurality of holes arranged towards the center, the outer portion of the cylinder 1 is provided with an aeration and suction device 52, the aeration and suction device 52 has the functions of aeration and suction, the aeration and suction device 52 is connected with the corresponding ring pipe network 51 through an aeration pipe 54, so as to perform the aeration and waste gas suction of the tower type processing device. In addition, the aeration and suction device 52 is provided with a suction pipe 53 connected with the waste gas collection and treatment system 6. The aeration and suction device 52 of each layer compresses air and then pours the air into the ring pipe network 51 through the aeration pipe 54, and the oxygen is supplied to the fermented material in the fermentation chamber through the holes in the ring pipe network 51. The waste gas and water vapor generated during the fermentation of the material can also be sucked by the aeration and suction device 52, and then sequentially pass through the ring pipe network 51, the aeration pipe 54 and the suction pipe 53 to the waste gas collection and treatment system 6.

[0051] In this embodiment, the waste gas collection and treatment system 6 and the wastewater collection and treatment system 7 are connected by pipelines. The waste gas collection and treatment system 6 includes a waste gas collection unit 61 and a waste gas treatment unit 62. The waste gas collection unit 61 is equipped with a negative pressure collection pipeline network 611 at the top of the fermentation chamber. The waste gas treatment unit 62 is located at the top of the outer side of the cylinder 1. The waste gas treatment unit 62 is equipped with a negative pressure collection pipeline 621 connected to the negative pressure collection pipeline network. In this way, the waste gas with nearly saturated humidity generated during the fermentation of perishable waste can be collected by the wastewater collection and treatment system 7 and transported to the waste gas treatment unit 62. The waste gas treatment unit 62 can dehumidify the nearly saturated humidity waste gas and send it to the subsequent gas purification unit. The wastewater in the dehumidification process is discharged into the water treatment area of ​​the wastewater collection and treatment system 7 through pipelines. The waste gas treatment unit 602 consists of dehumidification, purification and high exhaust stack. The waste gas with high moisture content and near saturation is discharged at a high altitude after dehydration and purification.

[0052] In this embodiment, for the vertical processing system for perishable waste, the wastewater generated during fermentation flows downwards and collects. Therefore, the wastewater collection and treatment system 7 is arranged at the bottom of the cylinder 1, and the wastewater is discharged after treatment to meet standards. The wastewater collection and treatment system 7 has a drainage body 71 inside the fermentation chamber, and a permeable pipe 72 is installed inside the drainage body 71. The wastewater collection and treatment system 7 can also have a capillary drainage strip 73 at the bottom of the fermentation chamber, and a water collection pipe 74 is installed below the ground level of the tower-type treatment device. The water collection pipe 74 is designed according to the shape of the fermentation chamber, and the water collection pipe 74 is connected to the bottom drainage end of the capillary drainage strip 73. Therefore, during the fermentation process of the tower treatment device, the water generated, except for a portion that escapes to the top waste gas collection unit 61 during aeration, will collect downwards, resulting in a higher moisture content in the bottom material. Through the capillary siphon effect of the capillary drainage belt 73, the water flows along the grooves on the capillary drainage belt 73 into the water collection pipe 74. The water collection pipe 74 collects the water from the capillary drainage belt 73 and discharges it into the permeable pipe 72 located further down. The drainage body 71 is equipped with a grid mesh at the top, and below the grid mesh, from top to bottom, there are layers of fine-grained filler, medium-coarse-grained filler, and gravel filler. Due to capillary siphon effect, the water enters the permeable pipe 72 within the drainage body 71 and finally reaches the gravel filler layer at the bottom, where it is discharged to the external water treatment area. The wastewater is then discharged after meeting the standards.

[0053] In this embodiment, the processing unit in the middle region (i.e., layer b) is connected to the finished product area outside the discharge port 42.

[0054] Please see Figures 1-18 The specific steps during system operation are as follows:

[0055] S1: Perishable waste is fed into the fermentation chamber through the feeding device 2, and the perishable waste is crushed into 3-5cm material through the crushing device, and then enters the processing unit through the spreading device 3 to start fermentation;

[0056] S2: During the fermentation process, the overall mixing of materials in the fermentation chamber of cylinder 1 is achieved through repeated feeding and discharging. The fermented materials discharged from the discharge port 42 of each layer (layer a, layer b, layer c) of the processing unit enter the fermentation chamber through the feeding track and the feeding device 2. The fermented materials that do not fall directly to the processing unit and the perishable waste are mixed by the material spreading blades 32 on the spreading device 3 during the rotation process, and the mixed materials are evenly mixed and spread on the surface of the fermented materials in the fermentation chamber.

[0057] S3: During discharge, the mixing and discharge unit in layer a stirs in zone a1, pushing the material towards outlet a1 for discharge. The mixing and discharge unit in layer b stirs in zone b1, pushing the material towards outlet b1 for discharge. The mixing and discharge unit in layer c stirs in zone c1, pushing the material towards outlet c1 for discharge. Because zones a1, b1, and c1 are staggered on the plane, the newly added material in zone a1, the material in zone a2, and the material in zone b2 above zones a1, b1, and c1 will continuously collapse due to the discharge from below, thus ensuring that the material near the corresponding outlets a1, b1, and c1 is fully mixed. Subsequently, discharge from zones a2, b2, and c2, zones a3, b3, and c3, and zones a4, b4, and c4 are carried out in the direction of rotation until the material is dried.

[0058] S4: During the discharge process, one of the discharge ports 42 of each layer processing unit is opened. When the discharge port 42 is in the open state, the discharge ports 42 of the other layer processing units on the projection plane are staggered from the discharge port 42, so that the material near the opened discharge port 42 can be fully mixed with the material that is continuously collapsing from above.

[0059] S5: During the discharge process, the aeration and oxygen supply dehydration system 5 is started, and the ring network 51 in the area corresponding to the discharge position starts aeration to supply oxygen for the fermentation of nearby materials. At the same time, it carries out the water vapor generated by the high temperature of fermentation and carries out some heat to avoid the local temperature of the material being too high and affecting the reproduction of the microbial community.

[0060] S6: The exhaust gas is collected under negative pressure by the exhaust gas collection unit 61 and enters the exhaust gas treatment unit 62. The exhaust gas with high water content and near saturation is dehydrated and purified before being discharged at a high altitude. The wastewater generated during the fermentation process is collected and treated by the wastewater collection and treatment system 7 before being discharged after meeting the standards.

[0061] Based on the above, the lower layer (layer C) has a high moisture content due to wastewater accumulation. Therefore, the middle layer (layer B), with a lower moisture content, is used as the product. A portion of the material from the middle layer (layer B), such as from zone B1, undergoes further processing. The remaining portion is mixed with the material from zone A1, the material from zone C1, and fresh perishable waste before entering the top feeding device 2 to begin a new cycle. Through continuous circulation, the materials in chamber 1 are thoroughly mixed, and a characteristic community dominated by high-temperature fermentation bacteria gradually forms within the fermentation chamber. Fresh perishable waste mixed with the discharged material enters the chamber, allowing for rapid heating. The perishable waste provides the necessary carbon and nitrogen sources for the reproduction of high-temperature fermentation microorganisms within the chamber. The moisture generated during the fermentation and decomposition of the perishable waste is carried away by the aeration process, collected through bottom filtration, and flows out of the fermentation system, thus achieving the biological drying of the perishable waste.

[0062] The above embodiments are merely preferred technical solutions of the present invention. Those skilled in the art should understand that modifications or substitutions to the technical solutions or parameters in the embodiments can be made without departing from the principles and essence of the present invention, and all such modifications or substitutions should be covered within the protection scope of the present invention.

Claims

1. A biological drying treatment system for perishable waste, characterized in that: The tower-type processing device includes a cylinder (1), a feeding device (2), a material distribution device (3), a discharge system (4), and an aeration and oxygen supply dehydration system (5). The feeding device (2) is located at the top of the cylinder (1) and is connected to the fermentation chamber inside the cylinder (1). The material distribution device (3) is located at the top of the fermentation chamber directly below the outlet of the feeding device (2). The discharge system (4) has several layered processing units arranged vertically in the cylinder (1). Each layer of the processing unit is separated by support beams (41) inside the fermentation chamber. The support beam (41) is provided with several fermentation units in the circumferential direction of the cylinder (1). The support beam (41) is provided with a stirring and discharging unit that rotates around the middle of the cylinder (1) in the circumferential direction. The processing unit is provided with a discharge port (42) on the cylinder (1) corresponding to the fermentation unit. A feeding device connected to the feeding device (2) is provided outside the discharge port (42). When the discharge port (42) of each layer of the processing unit is in the open state, it is divided into a discharge area and a closed area. The discharge area of ​​each processing unit covers the closed area of ​​the other processing units in the projection. The top and bottom of the cylinder (1) are respectively provided with a waste gas collection and treatment system (6) and a wastewater collection and treatment system (7). The waste gas collection and treatment system (6) and the wastewater collection and treatment system (7) are connected to the fermentation chamber to form a dehydration and reduction state for the material in the fermentation chamber. The discharge port (42) is provided with an openable and closable gate (422), and the feeding device is provided with a feeding track outside the discharge port (42), and a hopper (421) is moved on the feeding track. The aeration oxygen supply and dehydration system (5) is provided with a ring network (51) in the treatment unit. The ring network (51) has holes. An aeration device (52) is provided outside the cylinder (1). The aeration device (52) is provided with a suction pipe (53) connected to the waste gas collection and treatment system (6). The waste gas collection and treatment system (6) is connected to the wastewater collection and treatment system (7) through a pipeline; the waste gas collection and treatment system (6) includes a waste gas collection unit (61) and a waste gas treatment unit (62). The waste gas collection unit (61) is provided with a negative pressure collection pipeline (611) at the top of the fermentation chamber. The waste gas treatment unit (62) is located at the top of the outer side of the cylinder (1). The waste gas treatment unit (62) is provided with a negative pressure collection pipeline (621) connected to the negative pressure collection pipeline.

2. The biological drying treatment system for perishable waste according to claim 1, characterized in that: The feeding device (2) forms a feed inlet (21) at the top of the cylinder (1), and a crushing device is set above the feed inlet (21).

3. The biological drying treatment system for perishable waste according to claim 1, characterized in that: The fabric feeding device (3) includes a grid frame (31) on which a feeding blade (32) is provided.

4. The biological drying treatment system for perishable waste according to claim 1, characterized in that: The mixing and discharging unit includes a rotating device (431) located at the center of the processing unit, and a blade-type auger (432) is obliquely upward on the rotating device (431).

5. The biological drying treatment system for perishable waste according to claim 1, characterized in that: The wastewater collection and treatment system (7) has a drainage body (71) inside the fermentation chamber, and a permeable pipe (72) is provided inside the drainage body (71).

6. The biological drying treatment system for perishable waste according to claim 1, characterized in that: The processing unit in the central region is connected to the finished product area outside the discharge port (42).

7. The operation method of the biodegradable waste biological drying treatment system as described in claim 1, characterized in that: Includes the following steps: S1: The perishable waste is fed into the fermentation chamber through the feeding device (2), and the perishable waste is crushed into 3-5cm material through the crushing device, and then fed into the processing unit through the spreading device (3) to start fermentation; S2: During the fermentation process, the overall mixing of the materials in the fermentation chamber of the cylinder (1) is achieved by repeated feeding and discharging, and the fermentation materials discharged from the discharge port (42) of each layer of processing unit enter the fermentation chamber through the feeding track and the feeding device (2). The fermented materials and perishable waste are mixed by the spreading device (3) and then fed into the feeding device (2), so that the mixed materials are evenly mixed and spread on the surface of the fermentation materials in the fermentation chamber. S3: During the discharge process, one of the discharge ports (42) of each layer of the processing unit is opened. When the discharge port (42) is in the open state, the discharge ports (42) of the other processing units on the projection plane are staggered from the discharge port (42) so that the material near the opened discharge port (42) can be fully mixed with the material that is continuously collapsing from the top. S4: During the discharge process, the aeration oxygen supply and dehydration system (5) is started, and the ring network (51) in the area corresponding to the discharge location starts to aerate, supplying oxygen for the fermentation of nearby materials, while carrying out the water vapor generated by the high temperature of fermentation, and also carrying out some heat, so as to avoid the local temperature of the material being too high and affecting the reproduction of the microbial community. S5: The exhaust gas is collected under negative pressure by the exhaust gas collection unit (61) and enters the exhaust gas treatment unit (62). The exhaust gas with high water content and near saturation is dehydrated and purified before being discharged at a high altitude. The wastewater generated during the fermentation process is collected and treated by the wastewater collection and treatment system (7) and discharged after meeting the standards.

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