Kitchen waste treatment equipment and kitchen waste treatment method

Abstract

The invention discloses kitchen garbage treatment equipment which is characterized by comprising a machine body (1); the slurry collecting device (2) is arranged at the bottom of the machine body (1); the first driving unit (3) is connected to the slurry collecting device (2); the crushing plate hammer assembly (4) is arranged in the machine body (1); the rotary screen assembly (5) is arranged in the machine body (1); a second drive unit (6) connected to the crushing plate hammer assembly (4); and a third drive unit (7) connected to the rotary screen assembly (5). The invention further discloses a kitchen waste treatment method using the kitchen waste treatment equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of kitchen waste treatment, and in particular to kitchen waste treatment equipment and a kitchen waste treatment method. Background Art

[0002] Kitchen waste refers to organic waste such as food scraps, vegetable leaves, and fruit peels generated in the catering industry and family life. It has a high moisture content, is easy to rot, and has great health hazards, so it needs to be treated in time. In the existing kitchen waste treatment process, the garbage is first sent to the crusher for crushing to make it uniform in particle size for subsequent treatment. The crushed material is transported to the screening machine to screen out solid impurities and organic materials. Solid impurities mainly include non-degradable or difficult-to-degrade materials such as plastic bags, tableware, and bones. They need to be transported to the compressor for compression and packaging, and then sent to the landfill or incineration plant for treatment. The organic material is transported to the pulping machine and the dehydrating machine for resource utilization after treatment. The pulping machine beats the organic material into a pulp, and the dehydrating machine separates the water from the pulp material to obtain dry organic material. These organic materials can be used as fertilizers, feed, biogas, etc. to achieve the recycling of kitchen waste.

[0003] Although such a process flow for kitchen waste treatment can achieve a certain treatment effect, there are also some problems. First, the process flow is lengthy, requires a lot of equipment, and is costly. Kitchen waste needs to go through multiple steps such as crushing, screening, compression, pulping, and dehydration, and each step requires corresponding equipment, which increases the cost of purchasing, maintaining, and operating the equipment. Secondly, the material is transported multiple times, requiring many conveyors, and the equipment occupies a large area. Kitchen waste needs to be transported between different equipment by conveyors, which requires a large number of conveyors, which not only takes up space, but also increases energy consumption and noise. In addition, materials may overflow or scatter during transportation, causing environmental pollution and sanitation problems. Therefore, the existing kitchen waste treatment process needs to be improved to improve treatment efficiency, reduce costs and environmental impact. Summary of the invention

[0004] In order to solve the problems in the prior art, the present invention proposes a kitchen waste treatment device and a kitchen waste treatment method to improve treatment efficiency, reduce costs and environmental impact.

[0005] The present invention discloses a kitchen waste treatment device, comprising: a body; a slurry collecting device, which is arranged at the bottom of the body; a first driving unit, which is connected to the slurry collecting device; a crushing plate hammer assembly, which is arranged inside the body; a rotating screen assembly, which is arranged inside the body; a second driving unit, which is connected to the crushing plate hammer assembly; and a third driving unit, which is connected to the rotating screen assembly.

[0006] According to an optional embodiment, the fuselage includes: a first cavity; a second cavity, which is horizontally connected to the first cavity; and a feed port, which is arranged at the top of the first cavity and is connected to the interior of the first cavity; a solid discharge port, which is arranged at one end of the second cavity and is connected to the interior of the second cavity.

[0007] According to an optional embodiment, the slurry collecting device includes: a bottom shell, which is connected to the bottom of the first cavity and the second cavity to collect the slurry flowing down from the first cavity and the second cavity; a spiral blade, which is sheet-shaped and extends spirally, extending from one end of the bottom shell to the other end, covering the length of the first cavity and the second cavity; a spiral blade drive shaft, which is connected between the first drive unit and the spiral blade; and a slurry discharge port, which is arranged at one end of the bottom shell.

[0008] According to an optional embodiment, the breaker hammer assembly includes: breaker hammer units, which are fixed on the main shaft one by one inside the fuselage; bearing seats, which are respectively arranged at opposite ends of the fuselage; bearings, which are arranged in the bearing seats; the main shaft, which is rotatably arranged inside the fuselage, passes through from one side of the fuselage to the other side, and is supported between the two bearing seats by means of bearings; a breaker hammer transmission device, which is connected between the main shaft and the second drive unit; a seal, which is arranged at the connecting part of the main shaft and the fuselage to prevent the liquid inside the fuselage from leaking from the connecting part.

[0009] According to an optional embodiment, the bearing is a spherical roller bearing; and the seal is made of packing.

[0010] According to an optional embodiment, the rotary screen assembly includes: a rotary screen support, which is rotatably arranged inside the second cavity; a screen unit, which is cylindrical, fixed one by one on the rotary screen support, and an array of screen holes is arranged thereon; a rotary screen guide rail is fixed inside the second cavity and surrounds the rotary screen support so that the rotary screen support can rotate therein; a rotary screen drive shaft and a rotary screen drive gear, which are connected together between the third drive unit and the rotary screen support, wherein the rotary screen drive gear includes a large gear and a small gear meshing with each other, and the large gear surrounds the outer periphery of the screen unit. The small gear is fixed on the rotary screen drive shaft; and a fixed screen, which is arranged inside the first cavity, partially surrounds the lower part of the crushing plate hammer assembly, and an array of screen holes is arranged thereon.

[0011] According to an optional embodiment, the breaking blow hammer unit comprises a plurality of blow hammer elements arranged in a spiral manner; each blow hammer element is arranged at a certain angle to each other in the circumferential direction and has a sharp portion or a blade portion.

[0012] According to an optional embodiment, the breaking hammer assembly includes injection ports arranged at both ends of the main shaft; the injection ports are connected to the interior of the first cavity and the second cavity through the hollow main shaft to add diluent to the interior of the first cavity and the second cavity through the injection ports.

[0013] The present invention also discloses a method for treating kitchen waste using a kitchen waste treatment device, which is characterized by comprising the following steps: S100: conveying the material into the first cavity through the feed port; S101: starting the second driving unit, driving the main shaft to rotate, driving the crushing plate hammer unit to rotate, so that the sharp part or the blade of the plate hammer element cuts the packaging bag of the material entering the first cavity, and at the same time throws the material onto the fixed screen to help precipitate the organic slurry in the material, and the material after the bag is broken is conveyed to the second cavity as the plate hammer element rotates, and at the same time throws the material onto the screen unit to help It helps to further precipitate the organic slurry in the material, and allows the residual solids in the material to be discharged through the solid discharge port; S102: Start the third drive unit, drive the rotating screen bracket to rotate, drive the screen unit to rotate, so that the organic slurry in the material passes through the screen unit evenly, and the organic slurry that passes through the screen unit and the fixed screen is thrown out to the bottom of the first cavity and the second cavity under the action of gravity, and enters the bottom shell; S103: Start the first drive unit, drive the spiral blade to rotate, so as to transport the slurry in the bottom shell toward the slurry discharge port, and discharge the slurry through the slurry discharge port.

[0014] According to an optional embodiment, the method for treating kitchen waste includes the following steps: S104: According to the moisture content of the material, a diluent is selectively added into the first cavity and the second cavity through the liquid injection port, so as to adjust the moisture content of the slurry precipitated from the material.

[0015] The kitchen waste treatment equipment according to the present invention integrates the functions of hammering and screening kitchen waste and extracting organic matter into the same equipment, which greatly reduces the types and quantity of required equipment, especially reduces the number of required conveyors and the overall floor space of the equipment. In addition, the operation and maintenance of the kitchen waste treatment equipment according to the present invention are relatively convenient.

[0016] The hammer blade of the kitchen waste treatment equipment according to the present invention adopts a spiral design, which has the functions of crushing and spiral conveying, making the overall structure of the equipment more compact.

[0017] The kitchen waste treatment equipment according to the present invention can selectively add diluent to the material according to the moisture content of the material, thereby adjusting the moisture content of the slurry precipitated from the material.

[0018] The kitchen waste treatment device according to the present invention can spray cleaning liquid into the first cavity and the second cavity to flush and clean various components. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and other aspects of the present application will be more fully understood from the detailed description below in conjunction with the following drawings. It should be noted that the scales of the drawings may be different for the purpose of clear description, but this will not affect the understanding of the present application.

[0020] Figure 1 A side view of a food waste treatment device according to the present invention is shown.

[0021] Figure 2 Show Figure 1 An overhead view of a food waste treatment device.

[0022] Figure 3 Show Figure 1 Cross-sectional view of the food waste treatment equipment along line CC.

[0023] Figure 4 Show Figure 1 A cross-sectional view of the food waste treatment equipment along line AA.

[0024] Figure 5 Show Figure 1 Cross-sectional view of the food waste treatment equipment along line EE. DETAILED DESCRIPTION

[0025] The exemplary embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described here. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present application and to fully convey the scope of the present application to those skilled in the art. It should be noted that when an element is referred to as "fixed to" or "set to" another element, it can be directly on another element or indirectly on the other element. When an element is referred to as "connected to" another element, it can be directly connected to another element or indirectly connected to the other element. It should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present application. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "multiple" and "several" mean two or more, unless otherwise clearly and specifically defined.

[0026] Figure 1 A side view of a food waste treatment device according to the present invention is shown. Figure 2 Show Figure 1 The kitchen waste treatment device includes a body 1, a slurry collecting device 2, a first driving unit 3, a second driving unit 6 and a third driving unit 7. The slurry collecting device 2 is arranged at the bottom of the body 1. The first driving unit 3 is connected to the slurry collecting device 2 and is used to drive the slurry collecting device 2.

[0027] The body 1 includes a feed port 10, a first cavity 11, a second cavity 12 and a solid discharge port 13. The first cavity 11 is connected to the second cavity 12 in a horizontal direction. The feed port 10 is arranged at the top of the first cavity 11 and communicates with the interior of the first cavity 11. The solid discharge port 13 is arranged at one end of the second cavity 12 and communicates with the interior of the second cavity 12.

[0028] The slurry collecting device 2 includes a bottom shell 20, a spiral blade 21, and a spiral blade transmission shaft 22 (see Figure 3) and a slurry discharge port 23. The bottom shell 20 is communicated with the bottom of the first cavity 11 and the second cavity 12 to collect the slurry flowing down from the first cavity 11 and the second cavity 12. The spiral blade 21 is sheet-shaped and extends spirally, specifically extending from one end of the bottom shell 20 to the other end, covering the length of the first cavity 11 and the second cavity 12. The spiral blade transmission shaft 22 is connected between the first drive unit 3 and the spiral blade 21. The slurry discharge port 23 is set at one end of the bottom shell 20.

[0029] Figure 3 Show Figure 1 Cross-sectional view of the food waste treatment equipment along line CC. Figure 4 Show Figure 1 The kitchen waste treatment device further comprises a crushing plate hammer assembly 4 and a rotary screen assembly 5. The crushing plate hammer assembly 4 and the rotary screen assembly 5 are arranged inside the fuselage 1.

[0030] The crushing plate hammer assembly 4 includes a main shaft 40, a crushing plate hammer transmission device 41, a crushing plate hammer unit 42, a bearing 43, a bearing seat 44 and a seal 45. The bearing seats 44 are respectively arranged at opposite ends of the fuselage 1. The bearing 43 is arranged in the bearing seat 44. The bearing 43 can be a spherical roller bearing. The main shaft 40 is rotatably arranged inside the fuselage 1, passing through from one side of the fuselage 1 to the other side, and is supported between two bearing seats 44 by means of the bearing 43. The crushing plate hammer transmission device 41 is connected between the main shaft 40 and the second drive unit 6. The crushing plate hammer units 42 are fixed to the main shaft 40 one by one inside the fuselage 1. The seal 45 is arranged at the connection between the main shaft 40 and the fuselage 1 to prevent the liquid inside the fuselage 1 from leaking out from the connection. The seal 45 can be made of packing.

[0031] The rotary screen assembly 5 includes a rotary screen support 50, a screen unit 51, a rotary screen drive shaft 52, a rotary screen guide rail 53, a rotary screen drive gear 54 and a fixed screen 55. The rotary screen support 50 is rotatably arranged inside the second cavity 12. The screen unit 51 is cylindrical and fixed to the rotary screen support 50 one by one. An array of screen holes is provided on the screen unit 51. The rotary screen guide rail 53 is fixed inside the second cavity 12 and surrounds the rotary screen support 50 so that the rotary screen support 50 can rotate therein. The rotary screen drive shaft 52 and the rotary screen drive gear 54 are connected together between the third drive unit 7 and the rotary screen support 50. The rotary screen drive gear 54 includes a large gear and a small gear meshed with each other. The large gear surrounds the outer periphery of the screen unit 51. The small gear is fixed on the rotary screen drive shaft 52. The fixed screen 55 is arranged inside the first cavity 11 and partially surrounds the lower part of the crushing plate hammer assembly 4. An array of screen holes is provided on the fixed screen 55.

[0032] Figure 5 Show Figure 1 The sectional view of the food waste treatment device along the EE line. The crushing hammer unit 42 includes a plurality of hammer elements 420 arranged in a spiral. Each hammer element 420 is arranged at a certain angle (for example, 90°) from each other in the circumferential direction and has a sharp portion or a blade.

[0033] The method for treating kitchen waste according to the present invention comprises the following steps:

[0034] S100: conveying materials (such as kitchen waste) into the first cavity 11 through the feed port 10;

[0035] S101 starts the second driving unit 6, drives the main shaft 40 to rotate (for example, at a speed of 600-1000 r / min), drives the crushing plate hammer unit 42 thereon to rotate, so that the sharp part or blade of the plate hammer element 420 on the crushing plate hammer unit 42 cuts the packaging bag in the material entering the first cavity 11, and at the same time throws the material onto the fixed screen 55 to help precipitate the organic slurry in the material, and the broken bag material is transported to the second cavity 12 along with the spirally arranged plate hammer element 420 on the crushing plate hammer unit 42, and at the same time throws the material onto the screen unit 51 to help further precipitate the organic slurry in the material, so that the residual solid in the material is discharged through the solid discharge port 13 set at one end of the second cavity 12;

[0036] S102: starting the third driving unit 7, driving the rotating screen support 50 to rotate, driving the screen unit 51 fixed thereon to rotate, ensuring that the organic slurry in the material passes through the screen unit 51 evenly, and the organic slurry thrown out through the screen unit 51 and the fixed screen 55 reaches the bottom of the first cavity 11 and the second cavity 12 under the action of gravity, and enters the bottom shell 20 of the slurry collecting device 2;

[0037] S103 starts the first driving unit 3 to drive the spiral blade 21 of the slurry collecting device 2 to rotate, so as to transport the slurry in the bottom shell 20 of the slurry collecting device 2 toward the slurry discharge port 23 arranged at one end of the bottom shell 20, so that the slurry is discharged through the slurry discharge port 23.

[0038] According to another embodiment of the present invention, the crushing plate hammer assembly 4 of the kitchen waste treatment equipment further includes a liquid injection port 46 (see Figure 3 The injection port 46 is connected to the interior of the first cavity 11 and the second cavity 12, for example, via the hollow main shaft 40. A diluent, such as biogas slurry, rainwater, tap water, leachate, etc., can be added to the interior of the first cavity 11 and the second cavity 12 via the injection port 46.

[0039] According to another embodiment of the present invention, the method for treating kitchen waste according to the present invention further comprises the following steps:

[0040] S104 selectively adds diluent into the first cavity 11 and the second cavity 12 through the liquid injection port 46 according to the moisture content of the material, so as to adjust the moisture content of the slurry precipitated from the material.

[0041] According to another embodiment of the present invention, the body 1 of the kitchen waste treatment device further includes a cleaning liquid inlet disposed at the top of the first cavity 11 and the second cavity 12. The cleaning liquid can be one or more of tap water, rainwater, landfill leachate, and biogas slurry produced by anaerobic fermentation.

[0042] According to another embodiment of the present invention, the method for treating kitchen waste according to the present invention further comprises the following steps:

[0043] S105 sprays cleaning liquid into the first cavity 11 and the second cavity 12 through the cleaning liquid inlet of the fuselage 1 to flush the crushing hammer unit 42, the screen unit 51 and the fixed screen 55;

[0044] S106 discharges the cleaning liquid through the slurry discharge port 23.

[0045] It can be understood by those skilled in the art that, in addition to implementing the kitchen waste treatment method according to the present invention in a purely computer-readable program code, the steps of the method can also be logically programmed to enable the control device set in the kitchen waste treatment device or remotely controlling the kitchen waste treatment device to implement the same function in the form of logic gates, switches, application-specific integrated circuits, programmable logic controllers, and embedded microcontrollers. Therefore, the control device can be considered as a hardware component, and the devices included therein for implementing various functions can also be considered as structures within the hardware component. Alternatively, the devices for implementing various functions can be considered as both software modules for implementing the method and structures within the hardware component.

[0046] The foregoing description of the embodiments has been provided for illustrative and descriptive purposes. It is not intended to be exhaustive or to limit the embodiments to the described variants. Many modifications and variations will be apparent to those skilled in the art. The embodiments are selected and described in order to best illustrate the principles and practical applications, so that those skilled in the art can understand the embodiments in their various embodiments and various modifications suitable for their intended use. Within the framework of the embodiments, the above-mentioned components and features can be combined between different embodiments.

Claims

1. A kitchen waste treatment device, characterized in that: include: Body (1); A slurry collecting device (2) arranged at the bottom of the fuselage (1); a first driving unit (3) connected to the slurry collecting device (2); A crushing plate hammer assembly (4), which is arranged inside the machine body (1); A rotary screen assembly (5) arranged inside the machine body (1); A second drive unit (6) connected to the crushing hammer assembly (4); as well as A third drive unit (7) is connected to the rotary screen assembly (5).

2. The kitchen waste treatment equipment according to claim 1, characterized in that: The body (1) includes: A first cavity (11); a second cavity (12) connected to the first cavity (11) in a horizontal direction; and A feed port (10) disposed at the top of the first cavity (11) and communicating with the interior of the first cavity (11); A solid discharge port (13) is arranged at one end of the second cavity (12) and is communicated with the interior of the second cavity (12).

3. The kitchen waste treatment equipment according to claim 2, characterized in that: The slurry collecting device (2) comprises: A bottom shell (20) is communicated with the bottom of the first cavity (11) and the bottom of the second cavity (12) to collect slurry flowing down from the first cavity (11) and the second cavity (12); A spiral blade (21) which is in the shape of a sheet and extends spirally, extending from one end to the other end of the bottom shell (20) and covering the length of the first cavity (11) and the second cavity (12); A spiral blade transmission shaft (22) connected between the first drive unit (3) and the spiral blade (21); and A slurry discharge port (23) is arranged at one end of the bottom shell (20).

4. The kitchen waste treatment equipment according to claim 1, characterized in that: The crushing hammer assembly (4) comprises: Crushing hammer units (42) are fixed one by one on the main shaft (40) inside the machine body (1); Bearing seats (44) are respectively arranged at opposite ends of the fuselage (1); A bearing (43) disposed in a bearing seat (44); A main shaft (40) is rotatably arranged inside the fuselage (1), passes through the fuselage (1) from one side to the other side, and is supported between two bearing seats (44) by means of a bearing (43); A crushing hammer transmission device (41) connected between the main shaft (40) and the second drive unit (6); A sealing member (45) is arranged at the connection portion between the main shaft (40) and the fuselage (1) to prevent liquid inside the fuselage (1) from leaking out from the connection portion.

5. The kitchen waste treatment equipment according to claim 4, characterized in that: The bearing (43) is a spherical roller bearing; and The sealing member (45) is made of packing.

6. The kitchen waste treatment equipment according to claim 2, characterized in that: The rotary screen assembly (5) comprises: A rotating screen support (50) rotatably disposed inside the second cavity (12); Screen units (51) are cylindrical and fixed one by one on the rotating screen support (50) and are provided with an array of screen holes; The rotating screen guide rail (53) is fixed inside the second cavity (12) and surrounds the rotating screen support (50) so that the rotating screen support (50) can rotate therein; A rotating screen transmission shaft (52) and a rotating screen transmission gear (54), which are connected together between the third driving unit (7) and the rotating screen support (50), wherein the rotating screen transmission gear (54) includes a large gear and a small gear meshing with each other, and the large gear surrounds the outer periphery of the screen unit (51). The small gear is fixed on the rotating screen transmission shaft (52); and A fixed screen (55) is arranged inside the first cavity (11), partially surrounding the lower part of the crushing hammer assembly (4), and having an array of screen holes arranged thereon.

7. The kitchen waste treatment equipment according to claim 4, characterized in that: The crushing hammer unit (42) comprises a plurality of hammer elements (420) arranged in a spiral manner; Each plate hammer element (420) is arranged at a certain angle in the circumferential direction and has a sharp portion or a blade.

8. The kitchen waste treatment equipment according to claim 4, characterized in that: The crushing plate hammer assembly (4) includes liquid injection ports (46) arranged at both ends of the main shaft (40); The injection port (46) is connected to the interior of the first cavity (11) and the second cavity (12) via the hollow main shaft (40), so that diluent can be added into the interior of the first cavity (11) and the second cavity (12) via the injection port (46).

9. A method for treating kitchen waste using the kitchen waste treatment equipment according to any one of claims 1 to 8, characterized in that: The following steps are involved: S100: conveying materials into the first cavity (11) through the feed port (10); S101: starting the second driving unit (6) to drive the main shaft (40) to rotate, driving the crushing hammer unit (42) to rotate, so that the sharp part or the blade of the hammer element (420) cuts the packaging bag in the material entering the first cavity (11), and at the same time throws the material onto the fixed screen (55) to help precipitate the organic slurry in the material, and the broken bag material is transported to the second cavity (12) as the hammer element (420) rotates, and at the same time throws the material onto the screen unit (51) to help further precipitate the organic slurry in the material, and the solids remaining in the material are discharged through the solid discharge port (13); S102: starting the third driving unit (7) to drive the rotating screen support (50) to rotate, thereby driving the screen unit (51) to rotate, so that the organic slurry in the material passes through the screen unit (51) evenly, and the organic slurry that passes through the screen unit (51) and the fixed screen (55) and is thrown out reaches the bottom of the first cavity (11) and the second cavity (12) under the action of gravity, and enters the bottom shell (20); S103: Start the first driving unit (3) to drive the spiral blade (21) to rotate, so as to transport the slurry in the bottom shell (20) toward the slurry discharge port (23), and discharge the slurry through the slurry discharge port (23).

10. The method for treating kitchen waste according to claim 9, characterized in that: The following steps are involved: S104: According to the moisture content of the material, a diluent is selectively added into the first cavity (11) and the second cavity (12) through the liquid injection port (46), thereby adjusting the moisture content of the slurry precipitated from the material.

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