Kitchen garbage comprehensive receiving device with multi-bin structure and automatic speed change

Abstract

The utility model discloses a kitchen garbage comprehensive receiving device with a multi-bin structure and an automatic speed changing function, which comprises a receiving bin, the receiving bin is respectively and fixedly connected with an exhaust bin and a conveying bin through a large-size bin body sealing connector, and a liquid discharging bin is connected below the conveying bin; the receiving bin is provided with a plurality of variable-frequency gear motor driving mechanisms and a receiving bin shaftless T-shaped screw; the conveying bin is provided with a plurality of variable-frequency gear motor driving mechanisms and a conveying bin shaftless T-shaped screw, the conveying bin shaftless T-shaped screw extends out along the tail end of the conveying bin, the extending conveying bin shaftless T-shaped screw is provided with a conveying bin overhanging screw shell, and the conveying bin overhanging screw shell is connected with the tail end of the conveying bin; the receiving bin shaftless T-shaped helixes and the conveying bin shaftless T-shaped helixes are arranged in multiple rows, and the rows of the receiving bin shaftless T-shaped helixes and the rows of the conveying bin shaftless T-shaped helixes are arranged in parallel; and the sections of helical blades of the receiving bin shaftless T-shaped helix and the conveying bin shaftless T-shaped helix are T-shaped.

Description

Technical Field

[0001] The utility model relates to the technical field of restaurant and kitchen waste treatment, in particular to a comprehensive kitchen waste receiving device. Background Art

[0002] At present, the kitchen waste in my country is collected by "professional kitchen waste collection and transportation units" using "special kitchen waste collection and transportation vehicles", and then transported to "professional kitchen waste centralized treatment plants" for treatment.

[0003] The general collection capacity of kitchen waste collection trucks is 3 to 8m 3 After being transported to the treatment plant, it must be driven to the treatment plant's unloading platform and dumped into the treatment plant's front-end receiving device for processing. Depending on the scale of the treatment plant, the treatment plant needs to accept multiple batches of food waste collection vehicles every day. Therefore, the food waste receiving device must have a certain sufficient receiving capacity to avoid congestion at the front end of the treatment line, insufficient transportation and processing, or malfunctions at the back end of the treatment line, which will cause backlogs at the front end and long delays of collection vehicles.

[0004] When the collecting and transporting vehicle unloads the materials at the unloading platform, the receiving device must be lower than the unloading platform to facilitate receiving the materials, and the materials must also be lifted and transported to the back-end processing equipment for processing. Therefore, the receiving device bin and its equipped conveying screw must be tilted upward at a certain angle toward the conveying end to facilitate lifting and transporting to the back-end processing equipment. However, after the receiving device bin is tilted, its actual effective storage volume is less than the utilization rate of the horizontal placement method, and the conveying capacity is also reduced. According to national and industry standards such as "Screw Conveyor JB / T7679-2019" and "Grain and Oil Machinery Screw Conveyor GB / T 36865-2018", the filling coefficient of the screw conveyor decreases by about 2% for every 1° tilt, that is, the larger the spiral inclination angle, the lower the conveying capacity; the general receiving device volume is generally 5 to 15m 3 More common, the maximum does not exceed 20m 3 .

[0005] In order to prevent interference from the entanglement of long fibers, plastic bags and other debris in the kitchen waste, the conveying screw equipped with the general receiving device adopts a shaftless screw for conveying. However, when the receiving device accommodates a large amount of kitchen waste and conveys it at an angle, the conveying resistance of the shaftless screw is large. Unlike the shafted screw, the shaftless screw has no central axis. Therefore, in practice, shaftless screw blade extrusion, pitch deformation and compression, material blockage and other faults often occur, resulting in shutdown for maintenance and replacement, and even suspension of the entire production line.

[0006] In summary, in the field of kitchen waste treatment, there is still a lack of a method that can effectively achieve a larger capacity (30m 3The above) kitchen waste collection, buffering and redundancy can avoid garbage blockage, backlog, retention, easy blockage of drainage holes, poor solid-liquid separation, loose silo sealing and easy leakage, and insufficient strength of shaftless conveying screw under high resistance caused by equipment failure. Utility Model Content

[0007] The purpose of the utility model is to provide a comprehensive kitchen waste receiving device with a multi-bin structure and automatic speed change, which is used in the pre-treatment front-end receiving process section of kitchen waste (restaurant kitchen) waste treatment, and realizes efficient material reception, large buffering and transportation. It has the advantages of large capacity, strong storage and transportation capabilities, and good material passability. The multi-spiral frequency conversion differential forms a shear force to push the material, which can effectively squeeze out larger hard materials. The device has a solid-liquid separation function, a self-cleaning and anti-blocking drainage hole, and is resistant to shutdown failures. Its structure is compact and closed, the processing process is automated, and no secondary pollution is generated to the environment.

[0008] In order to achieve the above-mentioned purpose, the technical solution adopted by the present utility model is as follows:

[0009] A multi-bin structure and automatic speed-shifting integrated kitchen waste receiving device includes a receiving bin, which is respectively connected and fixed to an exhaust bin and a delivery bin via a large-sized bin body sealed connection port. A drainage bin is connected below the delivery bin, and the receiving bin and the drainage bin are jointly connected and fixed via a frame.

[0010] The receiving bin is equipped with multiple frequency conversion reduction motor drive mechanisms and a receiving bin shaftless T-shaped spiral; the conveying bin is equipped with multiple frequency conversion reduction motor drive mechanisms and a conveying bin shaftless T-shaped spiral, the conveying bin shaftless T-shaped spiral extends along the tail end of the conveying bin, and the extended conveying bin shaftless T-shaped spiral is equipped with a conveying bin extending spiral shell, and the conveying bin extending spiral shell is connected to the tail end of the conveying bin;

[0011] The shaftless T-shaped spiral of the receiving bin and the shaftless T-shaped spiral of the conveying bin are both arranged in multiple rows, and the rows of the shaftless T-shaped spiral of the receiving bin and the rows of the shaftless T-shaped spiral of the conveying bin are arranged in parallel; the cross-sectional shape of the spiral blades of the shaftless T-shaped spiral of the receiving bin and the shaftless T-shaped spiral of the conveying bin is "T"-shaped.

[0012] Among them, the receiving bin is placed horizontally, and a first-level drainage interface is provided at the front end thereof; the conveying bin and the spiral shell extending out of the conveying bin are both inclined upward, and the angle between the inclination direction and the horizontal plane is 15 to 35 degrees; a second-level drainage interface is provided at the front end of the drainage bin.

[0013] Among them, a circle of connecting flange is welded to the outer side of the lower edge of the warehouse body of the receiving warehouse, and a circle of inner insert plate at the bottom edge of the upper warehouse that exceeds the lower edge of the warehouse body is welded to the inner side of the lower edge of the warehouse body of the receiving warehouse. A circle of connecting flange is also welded to the outer side of the upper edge of the warehouse body of the conveying warehouse, and the inner side of the upper edge of the warehouse body of the conveying warehouse is an inner conical interface, and the inner insert plate at the bottom edge of the upper warehouse is tightly plugged into the conical surface of the inner conical interface; an interface sealing gasket is provided between the grooves of the upper and lower connecting flanges, and the upper and lower connecting flanges are locked and sealed by fastening bolts.

[0014] Among them, a circle of connecting flange is welded to the outer side of the lower edge of the warehouse body of the exhaust warehouse, and a circle of upper warehouse bottom edge inner plug-in plate that exceeds the lower edge of the warehouse body is welded to the inner side of the lower edge of the warehouse body of the exhaust warehouse. A circle of connecting flange is also welded to the outer side of the upper edge of the warehouse body of the receiving warehouse, and the inner side of the upper edge of the warehouse body of the receiving warehouse is an inner conical interface, and the upper warehouse bottom edge inner plug-in plate is tightly plugged into the conical surface of the inner conical interface; an interface sealing gasket is provided between the grooves of the upper and lower connecting flanges, and the upper and lower connecting flanges are locked and sealed by fastening bolts.

[0015] Among them, the connection flange, the inner plug-in plate at the bottom edge of the upper bin and the interface sealing gasket together constitute a large-size bin body sealing connection port.

[0016] Among them, each row of shaftless T-shaped spirals in the receiving bin and each row of shaftless T-shaped spirals in the conveying bin are driven by a variable frequency reduction motor drive mechanism controlled by a variable frequency differential automatic control device, so that each row of spirals forms differential operation.

[0017] Among them, the spiral blades of the receiving bin shaftless T-shaped spiral and the conveying bin shaftless T-shaped spiral are locally thickened on the side close to the central axis to form a spiral blade with a "T"-shaped cross-section.

[0018] Among them, the lower side of the conveying bin is provided with a plurality of self-cleaning and anti-blocking drainage holes arranged in a matrix, and the self-cleaning and anti-blocking drainage holes are oblong, wherein the long axis direction of the self-cleaning and anti-blocking drainage holes in odd rows are arranged at an angle of 45° to the axial direction of the conveying bin, and the long axis direction of the self-cleaning and anti-blocking drainage holes in even rows are arranged at an angle of 135° to the axial direction of the conveying bin.

[0019] Among them, a rolling shutter door is provided on the front feeding side of the exhaust bin, and a gas suction interface is provided at the rear of the exhaust bin; the end of the conveying bin is externally connected to a bag breaking device or a discharge port.

[0020] The frame is made of carbon steel, and the flow-through parts of the device that come into contact with the material are made of 304 stainless steel.

[0021] Compared with the prior art, the outstanding effects of the present invention are:

[0022] (1) The multi-bin structure and automatic speed-changing kitchen waste comprehensive receiving device of the present invention can effectively overcome the receiving capacity limitation of the current kitchen waste receiving device, and realize the unloading of garbage collection and transportation vehicles as they come, without backlog, with buffer and redundancy. Through the multi-bin combination of horizontal receiving bin (high volume utilization rate and large storage volume) and inclined conveying bin, drainage bin (conveying and draining), and exhaust bin (discharging odorous gas), only one set of equipment group device is needed to realize a series of functions such as large-capacity reception and conveying of kitchen waste, large material crushing, solid-liquid separation, etc. The device volume can be within 40m 3 The above has a larger cache capacity.

[0023] (2) The receiving bin and conveying bin of the device have shaftless T-shaped spirals. The cross-sectional shape of the spiral blades is not the rectangular cross-sectional shape of a general shaftless spiral. Instead, the cross-sectional shape of the spiral blades is T-shaped, that is, the blades are locally thickened on the side close to the central axis. In addition to having the performance of the shaftless spiral in resisting interference from long fibers, plastic bags and other debris, it also has the ability to transport materials with large volumes and large resistances, effectively avoiding the problems of deformation and compression of the spiral blades due to extrusion, conveying failure, material blockage and other faults, which lead to shutdown for maintenance and replacement, and the suspension of the entire production line.

[0024] (3) The shaftless T-shaped screws in the receiving and conveying bins of this device are arranged in multiple rows and arranged in parallel at a certain interval. Regardless of the receiving or conveying bin, each screw controls the variable frequency reduction motor drive mechanism through a variable frequency differential automatic control device, so that each row of screws forms a differential operation, forming a shear force on the pushed material, which can effectively squeeze out larger hard materials. Moreover, if one of the screws fails, the other ones will continue to work, so that the production line will not stop, and it has an anti-stop failure function.

[0025] (4) The inclined conveying bin of this device is evenly distributed on its lower side with oblong self-cleaning and anti-blocking drainage holes arranged at a certain interval and at an angle of 45 degrees. Through the rotation of the shaftless T-shaped spiral, the material is squeezed and pushed, and the liquid squeezed out of the material flows into the drainage bin from the self-cleaning and anti-blocking drainage holes, thereby realizing the solid-liquid separation and transportation of the material. Under the condition of the same density and opening area, the oblong drainage holes arranged in this way have a higher drainage efficiency than ordinary circular holes. The oblong holes arranged obliquely and staggered along the spiral conveying direction are conducive to the smooth drainage of the material during the continuous squeezing and pushing process of the spiral, and the continuous scraping of the spiral can realize the self-cleaning and anti-blocking functions of the drainage holes.

[0026] (5) The large-sized silo of this device adopts a special sealed connection port. This sealing structure and method are effective and reliable, especially under the working conditions of equipment vibration and high moisture content of materials, which can maintain the production environment and prevent secondary pollution.

[0027] (6) The exhaust chamber of this device seals the receiving device and is equipped with a rolling door at the feed port. The rolling door opens when unloading and closes when unloading is completed. The gas suction interface of the exhaust chamber is connected to the rear-end negative pressure deodorization pipe network to form a slight negative pressure in the receiving device, and the odorous gas is led to the rear-end deodorization device for further treatment.

[0028] (7) The end of the conveying bin of this device can be connected to a "bag breaking device" (such as CN202020793698.8, a flexible bag breaking device for solid waste treatment) to further realize the conveying and bag breaking function, and can also be connected to other forms of discharge ports.

[0029] The multi-bin structure and automatic speed-changing kitchen waste comprehensive receiving device of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a front view of a comprehensive kitchen waste receiving device with a multi-bin structure and automatic speed change;

[0031] Figure 2 A side view of a multi-bin structure and automatic speed-shifting integrated kitchen waste receiving device;

[0032] Figure 3 for Figure 1 Cross-section along the “AA” direction;

[0033] Figure 4 for Figure 1 Cross-sectional view in the middle "BB" direction (i.e., cross-sectional view of the conveying bin);

[0034] Figure 5 for Figure 4 A partial enlarged view of the "I" in the figure (i.e., a cross-sectional view of the sealed connection port of the large-sized bin);

[0035] Figure 6 Schematic diagram of the shaftless T-helix;

[0036] Figure 7 for Figure 6 The cross-sectional view at "CC" in the figure (i.e. the cross-sectional view of the shaftless T-helix);

[0037] Figure 8 Schematic diagram of the self-cleaning and anti-clogging drain hole.

[0038] Among them, 1-receiving bin, 2-conveyance bin, 3-drainage bin, 4-exhaust bin, 5-large size bin body sealing connection port, 6-conveyance bin extended spiral shell, 7-frame, 8-receiving bin shaftless T-type spiral, 9-conveyance bin shaftless T-type spiral, 10-self-cleaning and anti-blocking drainage hole, 11-first-level drainage interface, 12-second-level drainage interface, 13-variable frequency reduction motor drive mechanism, 14-variable frequency differential automatic control device, 15-gas suction interface, 16-rolling door, 501-connection flange, 502-upper bin bottom edge inner plug-in plate, 503-interface sealing gasket. DETAILED DESCRIPTION

[0039] According to the national standard "Classification Marking of Domestic Waste GB / T 19095-2019," "kitchen waste (i.e., wet waste)" refers to perishable domestic waste containing organic matter, including three categories: "restaurant kitchen waste (including waste cooking oil and fat)", "household kitchen waste," and "other kitchen waste." In this embodiment, "kitchen waste" includes "restaurant kitchen waste (including waste cooking oil and fat)", "household kitchen waste," and "other kitchen waste."

[0040] like Figure 1-8 As shown, a comprehensive kitchen waste receiving device with a multi-bin structure and automatic speed change includes a receiving bin 1, which is connected and fixed to the exhaust bin 4 and the conveying bin 2 respectively through a large-size bin body sealing connection port 5. A drainage bin 3 is connected below the conveying bin 2, and the receiving bin 1 and the drainage bin 3 are connected and fixed together through a frame 7.

[0041] The receiving bin 1 is equipped with multiple frequency conversion reduction motor drive mechanisms 13 and a receiving bin shaftless T-shaped spiral 8; the conveying bin 2 is equipped with multiple frequency conversion reduction motor drive mechanisms 13 and a conveying bin shaftless T-shaped spiral 9, and the conveying bin shaftless T-shaped spiral 9 extends along the tail end of the conveying bin 2. The extended conveying bin shaftless T-shaped spiral 9 is equipped with a conveying bin extending spiral shell 6, and the conveying bin extending spiral shell 6 is connected to the tail end of the conveying bin 2.

[0042] like Figure 3 As shown, the shaftless T-shaped spiral 8 of the receiving bin and the shaftless T-shaped spiral 9 of the conveying bin are both arranged in multiple rows, and the rows of the shaftless T-shaped spiral 8 of the receiving bin and the rows of the shaftless T-shaped spiral 9 of the conveying bin are all arranged in parallel; the cross-sectional shape of the spiral blades of the shaftless T-shaped spiral 8 of the receiving bin and the shaftless T-shaped spiral 9 of the conveying bin are "T"-shaped.

[0043] The receiving bin 1 is positioned horizontally, with a primary drainage port 11 located below its front end, enabling large-capacity material reception and temporary storage. The conveying bin 2 and its extended spiral housing 6 are both tilted upward, with an angle of 15-35° to the horizontal. The tilted placement of the conveying bin saves process space and effectively ensures the transfer and solid-liquid separation of high-humidity, high-viscosity materials. The drainage bin 3 has a secondary drainage port 12 located below its front end.

[0044] like Figure 5 As shown, a circle of connecting flange 501 is welded to the outer side of the lower edge of the warehouse body of the receiving warehouse 1, and a circle of upper warehouse bottom edge inner insert plate 502 that exceeds the lower edge of the warehouse body is welded to the inner side of the lower edge of the warehouse body of the receiving warehouse 1. A circle of connecting flange 501 is also welded to the outer side of the upper edge of the warehouse body of the conveying warehouse 2, and the inner side of the upper edge of the warehouse body of the conveying warehouse 2 is an inner conical interface with a partially cut bevel. The upper warehouse bottom edge inner insert plate 502 is tightly plugged into the conical surface of the inner conical interface, so that the fluid of the upper warehouse body flows directly into the lower warehouse body without direct leakage between the connection surfaces, which plays the role of the first seal; an interface sealing gasket 503 is provided between the grooves of the upper and lower connecting flanges 501, and the upper and lower connecting flanges 501 are locked and sealed by tightening bolts, which plays the role of the second seal.

[0045] A circle of connecting flange 501 is welded to the outer side of the lower edge of the warehouse body of the exhaust warehouse 4, and a circle of upper warehouse bottom edge inner insert plate 502 that extends beyond the lower edge of the warehouse body is welded to the inner side of the lower edge of the warehouse body of the exhaust warehouse 4. A circle of connecting flange 501 is also welded to the outer side of the upper edge of the warehouse body of the receiving warehouse 1, and the inner side of the upper edge of the warehouse body of the receiving warehouse 1 is an inner conical interface with a partially cut bevel. The upper warehouse bottom edge inner insert plate 502 is tightly plugged into the conical surface of the inner conical interface, so that the fluid of the upper warehouse body flows directly into the lower warehouse body without direct leakage between the connection surfaces, which plays the role of the first seal; an interface sealing gasket 503 is provided between the grooves of the upper and lower connecting flanges 501, and the upper and lower connecting flanges 501 are locked and sealed by tightening bolts, which plays the role of the second seal.

[0046] The connection flange 501, the upper bin bottom edge inner plate 502, and the interface sealing gasket 503 together form the large-scale bin body sealing connection 5, effectively sealing the upper and lower bin bodies. This sealing structure can maintain the production environment even under conditions of equipment vibration and high moisture content of the material, preventing secondary contamination.

[0047] Each row of shaftless T-shaped screws (8) in the receiving bin and each row of shaftless T-shaped screws (9) in the conveying bin are driven by a variable-frequency reduction motor drive mechanism (13) controlled by a variable-frequency differential automatic control device (14). This creates a differential speed for each row of screws. This differential speed creates a shear force on the material being pushed, effectively crushing larger, harder materials. Furthermore, if one screw fails, the remaining screws continue to operate, preventing the production line from shutting down, thus providing a robust system for surviving downtime.

[0048] like Figure 6-7 As shown, the spiral blades of the shaftless T-shaped spiral 8 in the receiving bin and the shaftless T-shaped spiral 9 in the conveying bin are locally thickened near the central axis, forming a "T"-shaped spiral blade cross-section. In addition to the shaftless spiral's ability to resist interference from long fibers, plastic bags, and other debris, it also has the ability to transport large volumes and high resistance materials. This effectively avoids problems such as compression and pitch deformation caused by spiral blade compression, conveying failure, and material blockage, which can lead to downtime for maintenance, replacement, and even the suspension of the entire production line. This enhances the effective conveying capacity of complex kitchen waste, extends the service life of the spiral blades, and ensures effective solid-liquid separation.

[0049] like Figure 8 As shown, the lower side of the conveying bin 2 is provided with a plurality of self-cleaning and anti-blocking drainage holes 10 arranged in a matrix. The self-cleaning and anti-blocking drainage holes 10 are oblong in shape. The long axis directions of the self-cleaning and anti-blocking drainage holes 10 in odd rows are arranged at a 45° angle to the axial direction of the conveying bin 2, and the long axis directions of the self-cleaning and anti-blocking drainage holes 10 in even rows are arranged at a 135° angle to the axial direction of the conveying bin 2. The spacing between the self-cleaning and anti-blocking drainage holes 10 in each row is equal; the spacing between the self-cleaning and anti-blocking drainage holes 10 in each column is also equal. By rotating the shaftless T-screw, the material is squeezed and pushed, and the liquid squeezed out of the material flows from the self-cleaning and anti-blocking drainage holes 10 into the drainage bin 3, thereby realizing the solid-liquid separation and transportation of the material. This arrangement of oblong drainage holes has higher drainage efficiency than ordinary round holes under the condition of equal density and opening area. The oblong holes arranged obliquely and staggered along the direction of spiral conveying are conducive to smooth drainage of materials during the continuous squeezing and pushing process of the spiral, and the continuous scraping of the spiral can realize the self-cleaning and anti-blocking functions of the drainage holes.

[0050] A rolling shutter door 16 is installed at the front feed side of the exhaust chamber 4, and a gas suction port 15 is installed at the rear of the exhaust chamber 4. The exhaust chamber 4 seals the receiving device. The rolling shutter door 16 opens during unloading and closes at the end of unloading. The gas suction port 15 of the exhaust chamber 4 is connected to the negative pressure deodorization network at the rear end, creating a slight negative pressure in the receiving device, which guides the odorous gases to the rear end deodorization device for further treatment.

[0051] The end of the conveying bin 2 can be externally connected to a "bag breaking device" (such as CN202020793698.8, a flexible bag breaking device for solid waste treatment) to further realize the conveying bag breaking function, and can also be externally connected to other forms of discharge ports.

[0052] In this device, except for the variable frequency reduction motor drive mechanism 13, the variable frequency differential automatic control device 14 and the rolling shutter door 16, the frame 7 is made of carbon steel, and the surface is made of anti-corrosion material; the shaftless T-shaped screw 8 of the receiving bin and the shaftless T-shaped screw 9 of the conveying bin are both heat-treated with 16Mn, and the surface is made of anti-corrosion material. The remaining components in the device and the flow-through parts in contact with the material are all made of 304 stainless steel.

[0053] The embodiments described above are merely descriptions of preferred implementation methods of the present invention, and are not intended to limit the scope of the present invention. They should not be understood as limitations on the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the scope of protection determined by the claims of the present invention.

Claims

1. A multi-bin structure and automatic speed-changing integrated kitchen waste receiving device, characterized by: The receiving bin (1) is connected and fixed to the exhaust bin (4) and the delivery bin (2) respectively through a large-sized bin body sealing connection port (5); a drainage bin (3) is connected below the delivery bin (2); and the receiving bin (1) and the drainage bin (3) are connected and fixed together through a frame (7); The receiving bin (1) is equipped with a plurality of variable frequency reduction motor drive mechanisms (13) and a receiving bin shaftless T-shaped screw (8); the conveying bin (2) is equipped with a plurality of variable frequency reduction motor drive mechanisms (13) and a conveying bin shaftless T-shaped screw (9), the conveying bin shaftless T-shaped screw (9) extending along the tail end of the conveying bin (2), the extending conveying bin shaftless T-shaped screw (9) is equipped with a conveying bin protruding screw shell (6), and the conveying bin protruding screw shell (6) is connected to the tail end of the conveying bin (2); The receiving bin shaftless T-shaped spiral (8) and the conveying bin shaftless T-shaped spiral (9) are both arranged in multiple rows, and the rows of the receiving bin shaftless T-shaped spiral (8) and the rows of the conveying bin shaftless T-shaped spiral (9) are all arranged in parallel; the cross-section shape of the spiral blades of the receiving bin shaftless T-shaped spiral (8) and the conveying bin shaftless T-shaped spiral (9) is "T"-shaped.

2. The multi-bin structure and automatic speed-changing integrated kitchen waste receiving device according to claim 1 is characterized in that: The receiving bin (1) is placed horizontally, and a first-level drainage interface (11) is provided at the front end thereof; the delivery bin (2) and the spiral shell (6) extending outward from the delivery bin are both inclined upward, and the angle between the inclined direction and the horizontal plane is 15 to 35 degrees; the second-level drainage interface (12) is provided at the front end of the drainage bin (3).

3. The multi-bin structure and automatic speed-changing integrated kitchen waste receiving device according to claim 1 is characterized in that: A circle of connecting flange (501) is welded on the outer side of the lower edge of the warehouse body of the receiving warehouse (1), and a circle of upper warehouse bottom edge inner insert plate (502) that exceeds the lower edge of the warehouse body is welded on the inner side of the lower edge of the warehouse body of the receiving warehouse (1). A circle of connecting flange (501) is also welded on the outer side of the upper edge of the warehouse body of the conveying warehouse (2). The inner side of the upper edge of the warehouse body of the conveying warehouse (2) is an inner conical interface, and the upper warehouse bottom edge inner insert plate (502) forms a tight plug-in connection with the conical surface of the inner conical interface; an interface sealing gasket (503) is provided between the grooves of the upper and lower connecting flanges (501), and the upper and lower connecting flanges (501) are locked and sealed by fastening bolts.

4. The multi-bin structure and automatic speed-changing integrated kitchen waste receiving device according to claim 3 is characterized in that: A circle of connecting flange (501) is welded on the outer side of the lower edge of the warehouse body of the exhaust warehouse (4), and a circle of upper warehouse bottom edge inner plug-in plate (502) that exceeds the lower edge of the warehouse body is welded on the inner side of the lower edge of the warehouse body of the exhaust warehouse (4). A circle of connecting flange (501) is also welded on the outer side of the upper edge of the warehouse body of the receiving warehouse (1). The inner side of the upper edge of the warehouse body of the receiving warehouse (1) is an inner conical interface, and the upper warehouse bottom edge inner plug-in plate (502) forms a tight plug-in with the conical surface of the inner conical interface; an interface sealing gasket (503) is provided between the grooves of the upper and lower connecting flanges (501), and the upper and lower connecting flanges (501) are locked and sealed by fastening bolts.

5. The multi-bin structure and automatic speed-changing integrated kitchen waste receiving device according to claim 4 is characterized in that: The connection flange (501), the inner insert plate (502) at the bottom edge of the upper bin and the interface sealing rubber gasket (503) together form a large-sized bin body sealing connection port (5).

6. The multi-bin structure and automatic speed-changing integrated kitchen waste receiving device according to claim 1 is characterized in that: Each row of shaftless T-shaped screws (8) in the receiving bin and each row of shaftless T-shaped screws (9) in the conveying bin are driven by a variable frequency reduction motor drive mechanism (13) controlled by a variable frequency differential automatic control device (14), so that each row of screws forms a differential operation.

7. The multi-bin structure and automatic speed-changing integrated kitchen waste receiving device according to claim 1 is characterized in that: The spiral blades of the receiving bin shaftless T-shaped spiral (8) and the conveying bin shaftless T-shaped spiral (9) are locally thickened on one side close to the central axis to form a structure in which the cross section of the spiral blades is "T"-shaped.

8. The multi-bin structure and automatic speed-changing integrated kitchen waste receiving device according to claim 1 is characterized in that: The lower side of the delivery bin (2) is uniformly provided with a plurality of self-cleaning and anti-blocking drainage holes (10) arranged in a matrix, wherein the self-cleaning and anti-blocking drainage holes (10) are in an oblong shape, wherein the long axis directions of the self-cleaning and anti-blocking drainage holes (10) located in odd-numbered rows are arranged in a manner that forms an angle of 45° with the axial direction of the delivery bin (2), and the long axis directions of the self-cleaning and anti-blocking drainage holes (10) located in even-numbered rows are arranged in a manner that forms an angle of 135° with the axial direction of the delivery bin (2).

9. The multi-bin structure and automatic speed-changing integrated kitchen waste receiving device according to claim 1, characterized in that: The front feeding side of the exhaust bin (4) is provided with a rolling shutter door (16), and the rear of the exhaust bin (4) is provided with a gas suction interface (15); the end of the conveying bin (2) is externally connected to a bag breaking device or a discharge port.

10. The multi-bin structure and automatic speed-changing integrated kitchen waste receiving device according to claim 1, characterized in that: The material of the frame (7) is carbon steel, and the material of the flow-through parts in contact with the material in the device is 304 stainless steel.

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