Dry and wet garbage separation device convenient to clean

Abstract

The utility model belongs to the technical field of garbage separation, and particularly relates to a dry and wet garbage separation device convenient to clean, which comprises a dry and wet separation mechanism and a smashing mechanism, the dry and wet separation mechanism comprises a rack, a feeding groove, a discharging groove and a second gear motor are fixedly arranged on the rack, the second gear motor is in driving connection with a screen drum, and a spiral plate is fixedly arranged on the inner wall of the screen drum. A cleaning mechanism is arranged at one end of the screen drum and comprises an inner water pipe and an outer water pipe which are located on the inner side and the outer side of the screen drum respectively, and a plurality of spray heads and high-pressure spray heads are installed on the inner water pipe and the outer water pipe respectively. The axis of each high-pressure spray head is located in the radial direction of a circle where the hole centers of one set of screen holes are located. In the garbage separation process, objects blocked in the screen holes can be flushed out into the screen drum by high-pressure water flow sprayed out by the high-pressure spray head, a water curtain sprayed out by the spray head can comprehensively scrub objects attached to the inner wall of the screen drum, and the screen drum is effectively cleaned through internal and external cooperation.

Description

Technical Field

[0001] This utility model belongs to the field of waste separation technology, specifically relating to a dry and wet waste separation device that is easy to clean. Background Technology

[0002] With the advancement of waste sorting policies, the separation of wet and dry waste has become a crucial step for households, restaurants, and waste treatment plants. Efficient wet and dry separation devices can significantly improve the efficiency of subsequent waste processing. However, existing wet and dry waste separation devices commonly suffer from problems such as easy clogging of the screen cylinder and difficulty in cleaning, which seriously affect the processing effect.

[0003] Specifically, existing separation devices mostly rely on fixed screens or simple rotating screen cylinders for wet and dry separation. After the waste is directly put into the screen cylinder, the liquid in the wet waste, such as soup or sewage from kitchen waste, flows out through the screen holes, while the dry waste remains inside the screen cylinder. These devices have the following problems: First, the waste is separated directly without pretreatment, and some impurities are easily trapped in the screen holes, especially when the screen hole diameter is small, leading to more frequent clogging. If the clogged screen holes are not cleaned in time, the liquid cannot flow out normally, the wet and dry separation efficiency drops sharply, and there may even be cases where the dry waste is soaked in sewage, causing secondary pollution.

[0004] Secondly, the existing cleaning system is poorly designed. Most systems only have simple spray heads on the outside of the screen cylinder, which can only rinse away surface dust and cannot penetrate deep into the clogged screen holes. Some systems are equipped with internal rinsing components, but the spray head angle does not match the screen hole position, so the rinsing water cannot accurately target the blockage, resulting in poor cleaning. To thoroughly clean the screen cylinder, operators need to frequently stop the machine, disassemble the system, and manually unclog the screen holes, which is not only time-consuming and labor-intensive but also easily damages the screen cylinder, increasing maintenance costs.

[0005] Therefore, in response to the problems of easy clogging and difficult cleaning of the screen cylinders in existing dry and wet waste separation devices, there is an urgent need for a separation device to solve the clogging problem and improve separation efficiency and cleaning effect. Utility Model Content

[0006] To address the above problems, the purpose of this utility model is to provide a dry and wet waste separation device that is easy to clean, thus solving the problems of easy clogging and difficult cleaning of the screen cylinder in existing dry and wet waste separation devices.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a convenient-to-clean dry and wet waste separation device, comprising a dry and wet separation mechanism and a crushing mechanism. The dry and wet separation mechanism includes a frame, with a feed chute and a discharge chute fixedly provided at one end of the frame adjacent to the crushing mechanism and at the other end away from the crushing mechanism, respectively. A second geared motor is fixedly mounted on the frame above the discharge chute, driving a perforated frame. The perforated frame is fixed to one end of a screen cylinder, and a support wheel is rotatably connected to the side of the screen cylinder. The support wheel is mounted on the frame, and the screen cylinder faces one end of the crushing mechanism. The screen cylinder is inclined downwards, and a spiral plate is fixed on the inner wall of the screen cylinder. Screen holes are opened on the surface of the screen cylinder. Multiple screen holes are evenly arranged in groups around the axis of the screen cylinder, and each group of screen holes is equidistant from each other in the axial direction of the screen cylinder. A cleaning mechanism is provided at one end of the screen cylinder. The cleaning mechanism includes an inner water pipe and an outer water pipe located on the inner and outer sides of the screen cylinder, respectively. One end of the inner water pipe and the outer water pipe are connected to the main pipeline. Multiple nozzles and high-pressure nozzles are installed on the inner water pipe and the outer water pipe, respectively. The axis of each high-pressure nozzle is located in the radial direction of the circle where the center of a group of screen holes is located.

[0008] The beneficial effects of this utility model are as follows: after the garbage is crushed by the crushing mechanism, it enters the dry and wet separation mechanism for dry and wet separation and collection. During the separation process, the objects blocked in the screen holes can be efficiently flushed out into the inside of the screen cylinder by the high-pressure water jet sprayed from the high-pressure nozzle. The water curtain sprayed from the nozzle can thoroughly wash and remove the objects adhering to the inner wall of the screen cylinder. The combination of internal and external cleaning effectively cleans the screen cylinder and ensures the screening effect of the screen cylinder.

[0009] In order to thoroughly and effectively clean the inner wall of the screen cylinder by using the nozzle;

[0010] As a further improvement to the above technical solution: the nozzle is a fan-shaped nozzle, and multiple nozzles are equidistantly spaced along the axial direction of the inner water pipe and the screen cylinder, with the fan-shaped spray surfaces of two adjacent nozzles arranged parallel to each other.

[0011] The beneficial effects of this improvement are: the fan-shaped spray surface emitted by multiple nozzles can completely cover the inner wall of the screen cylinder as the screen cylinder rotates, ensuring the cleaning effect on the inner wall of the screen cylinder.

[0012] To improve the cleaning effect of the high-pressure nozzle and the nozzle working together;

[0013] As a further improvement to the above technical solution: in the rotation direction of the screen cylinder, the nozzle is located behind the high-pressure nozzle.

[0014] The beneficial effects of this improvement are as follows: as the screen cylinder rotates, the high-pressure nozzles first flush the objects blocked in the screen holes into the inner side of the screen cylinder, and then the nozzles uniformly flush the flushed objects off the inner wall of the screen cylinder. The reasonable coordination ensures the cleaning effect on the screen cylinder.

[0015] For convenient control of flushing water flow;

[0016] As a further improvement to the above technical solution: the main pipeline is fixed to the frame by a pipe clamp, and a valve is installed at one end of the main pipeline.

[0017] The beneficial effects of this improvement are: after connecting the valve to the pump cleaning water circuit, the flow rate of the nozzles and high-pressure nozzles can be controlled by controlling the valve size, thereby achieving the goal of saving water resources.

[0018] In order to effectively collect the crushed material into the sieve cylinder;

[0019] As a further improvement to the above technical solution: the crushing mechanism includes a bracket, on which a support shell is fixedly mounted. The support shell is located vertically above the feed trough. The bottom end of the feed trough extends obliquely into the inner side of the screen cylinder. Crushing rollers are rotatably mounted parallel to each other on the inner side of the support shell. A transmission gear is fixedly mounted at one end of the crushing roller. The transmission gears mounted on the two crushing rollers mesh with each other and the transmission ratio is 1:1. One of the crushing rollers is connected to one end of the output shaft of a reduction motor. The reduction motor is fixedly mounted on the outer side of the support shell.

[0020] The beneficial effects of this improvement are as follows: the geared motor can drive the two crushing rollers to rotate in opposite directions at the same speed through the gear mechanism, thereby effectively crushing the garbage thrown in from above. The crushed garbage falls into the inside of the feeding trough under the action of gravity, and then slides into the screen cylinder to achieve efficient dry and wet separation.

[0021] In order to effectively collect the separated water;

[0022] As a further improvement to the above technical solution: a water collection trough is fixed on the frame directly below the screen cylinder, and the bottom end of the water collection trough is connected to one end of the drain pipe.

[0023] The beneficial effects of this improvement are: the water filtered through the sieve holes can flow into the water collection tank under the action of gravity, and then be discharged uniformly through the drain pipe.

[0024] To prevent wastewater from being thrown around by the rotating screen cylinder during the screening process;

[0025] As a further improvement to the above technical solution: a cover plate is fixed on the dry and wet separation mechanism above the water collection tank. The cover plate covers the outside of the screen cylinder, and a through hole adapted to the insertion cleaning mechanism is opened on the cover plate.

[0026] The beneficial effects of this improvement are: the cover plate acts as a shield, preventing the wastewater thrown out during the rotation of the screen cylinder from polluting the surrounding environment.

[0027] To ensure the stability of the screen cylinder rotation;

[0028] As a further improvement to the above technical solution: the support wheels are arranged in pairs on the front and rear sides of the screen cylinder, and the two support wheels in each pair are arranged opposite each other on both sides of the axis of the screen cylinder. The roller brackets in the support wheels are fixed on the dry and wet separation mechanism, and the curved side of the rollers in the support wheels are rolled and connected to the outer surface of the screen cylinder.

[0029] The beneficial effects of this improvement are: multiple support wheels can provide stable rotational support for the screen cylinder, ensuring the stability and smoothness of the screen cylinder's rotation.

[0030] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of this utility model;

[0032] Figure 2 This is a schematic diagram of the structure of this utility model without the cover plate;

[0033] Figure 3 This is a schematic diagram of the cleaning mechanism in this utility model;

[0034] Figure 4 This is a schematic diagram of the crushing mechanism in this utility model;

[0035] In the diagram: 1. Dry-wet separation mechanism; 3. Frame; 4. Support wheel; 5. Feed chute; 6. Discharge chute; 7. Hollow frame; 8. Gear motor II; 9. Screen cylinder; 91. Spiral plate; 92. Screen hole; 10. Cleaning mechanism; 101. Main pipeline; 102. Inner water pipe; 103. Outer water pipe; 104. Valve; 105. Nozzle; 106. High-pressure nozzle; 11. Water collection tank; 12. Drain pipe; 13. Cover plate; 2. Crushing mechanism; 21. Support; 22. Support shell; 23. Crushing roller; 24. Transmission gear; 25. Gear motor I. Detailed Implementation

[0036] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of the present invention in any way.

[0037] Example 1:

[0038] like Figure 1As shown in Figure 4: A convenient-to-clean dry and wet waste separation device includes a dry and wet separation mechanism 1 and a crushing mechanism 2. The dry and wet separation mechanism 1 includes a frame 3. A feed chute 5 and a discharge chute 6 are fixedly installed at one end of the frame 3 adjacent to the crushing mechanism 2 and at the other end away from the crushing mechanism 2, respectively. A reduction motor 8 is fixedly installed on the frame 3 above the discharge chute 6. The reduction motor 8 drives a perforated frame 7, which is fixedly installed at one end of a screen cylinder 9. A support wheel 4 is rotatably connected to the side of the screen cylinder 9 and is mounted on the frame 3. The screen cylinder 9 is inclined downwards towards the end facing the crushing mechanism 2. A spiral plate 91 is fixedly installed on the inner wall of the screen cylinder 9, and openings are formed on the surface of the screen cylinder 9. A screen with 92 holes is arranged in groups, evenly surrounding the axis of the screen cylinder 9. Each group of screen holes 92 is equidistant from each other in the axial direction of the screen cylinder 9. A cleaning mechanism 10 is provided at one end of the screen cylinder 9. The cleaning mechanism 10 includes an inner water pipe 102 and an outer water pipe 103 located on the inner and outer sides of the screen cylinder 9, respectively. One end of the inner water pipe 102 and the outer water pipe 103 is connected to the main pipeline 101. Multiple nozzles 105 and high-pressure nozzles 106 are installed on the inner water pipe 102 and the outer water pipe 103, respectively. The axis of each high-pressure nozzle 106 is located in the radial direction of the circle containing the center of a group of screen holes 92. After being crushed by the crushing mechanism 2, the waste enters the dry and wet separation mechanism 1 for dry and wet separation. During collection and separation, objects clogged in the sieve holes 92 can be efficiently flushed out into the sieve cylinder 9 by the high-pressure water jet from the high-pressure nozzle 106. The water curtain sprayed from the nozzle 105 can thoroughly scrub away objects adhering to the inner wall of the sieve cylinder 9. The combined internal and external cleaning effectively cleans the sieve cylinder 9, ensuring its sieving effect. The nozzle 105 is a fan-shaped nozzle, with multiple nozzles 105 equidistantly spaced along the axial direction of the inner water pipe 102 and the sieve cylinder 9. The fan-shaped spray surfaces of adjacent nozzles 105 are arranged parallel to each other. The fan-shaped spray surfaces from multiple nozzles 105 can completely cover the inner wall of the sieve cylinder 9 as it rotates, ensuring a thorough cleaning of the inner wall. In the rotation direction of the sieve cylinder 9, the nozzles 105... Located behind the high-pressure nozzle 106, as the screen cylinder 9 rotates, the high-pressure nozzle 106 first flushes the objects blocked in the screen holes 92 into the inner side of the screen cylinder 9. Then, the nozzle 105 flushes the flushed objects off the inner wall of the screen cylinder 9. This coordinated action ensures a good cleaning effect on the screen cylinder 9. The main pipeline 101 is fixed to the frame 3 by pipe clamps. A valve 104 is installed at one end of the main pipeline 101. After connecting the valve 104 to the pump cleaning water circuit, the flow rate of the nozzles 105 and 106 can be controlled by adjusting the valve size of the valve 104, thereby saving water resources. The pulverizing mechanism 2 includes a bracket 21, on which a support shell 22 is fixed.The support shell 22 is located vertically above the feed trough 5. The bottom end of the feed trough 5 extends obliquely into the inner side of the screen cylinder 9. Crushing rollers 23 are mounted parallel to each other on the inner side of the support shell 22. A transmission gear 24 is fixedly mounted at one end of each crushing roller 23. The transmission gears 24 mounted on the two crushing rollers 23 mesh with each other with a transmission ratio of 1:1. One crushing roller 23 is connected to one end of the output shaft of a reduction motor 25. The reduction motor 25 is fixedly mounted on the outer side of the support shell 22. The reduction motor 25 can drive the two crushing rollers 23 to rotate in opposite directions at the same speed through a gear mechanism, thereby effectively crushing the garbage thrown in from above. The crushed garbage falls into the interior of the feed trough 5 under gravity and then slides into the screen cylinder 9 to achieve efficient dry and wet separation. A water collection trough 11 is fixedly mounted on the frame 3 directly below the screen cylinder 9. The bottom end of the water collection trough 11 is connected to a drain... At one end of the water pipe 12, the water filtered through the screen hole 92 flows into the water collection tank 11 under gravity, and is then discharged through the drain pipe 12. A cover plate 13 is fixed to the dry-wet separation mechanism 1 above the water collection tank 11. The cover plate 13 covers the outside of the screen cylinder 9, and has through holes adapted to accommodate the insertion cleaning mechanism 10. The cover plate 13 acts as a shield to prevent wastewater from being thrown out during the rotation of the screen cylinder 9 and polluting the surrounding environment. The support wheels 4 are arranged in pairs on the front and rear sides of the screen cylinder 9, with the two support wheels 4 in each pair positioned opposite each other on opposite sides of the screen cylinder 9's axis. The roller brackets in the support wheels 4 are fixed to the dry-wet separation mechanism 1, and the curved sides of the rollers in the support wheels 4 roll and connect to the outer surface of the screen cylinder 9. Multiple support wheels 4 provide stable rotational support for the screen cylinder 9, ensuring the stability and smoothness of its rotation.

[0039] The working principle of this technical solution is as follows: connect the water inlet of the main pipeline 101 to an external water supply system such as a tap water pipe or a high-pressure water pump to ensure stable water supply pressure. The circuit control system of the device can adopt existing mature technology without the need for special circuit design and improvement.

[0040] Start the reduction motor 25 of the crushing mechanism 2. The two crushing rollers 23 rotate in opposite directions at the same speed under the drive of the transmission gear 24. The dry and wet mixed waste to be processed is fed into the feed port of the support shell 22 at a uniform speed. The waste falls between the two crushing rollers 23 and is crushed into small pieces by the teeth on the roller body. The crushed waste falls into the feed trough 5 located directly below the support shell 22 under the action of gravity, and slides into the screen cylinder 9 along the bottom of the inclined feed trough to complete the pretreatment.

[0041] The second geared motor 8 is started synchronously, driving the hollow frame 7 to rotate the screen cylinder 9. The screen cylinder 9 is tilted downwards towards the crushing mechanism to facilitate the movement of dry waste towards the discharge chute. The support wheel 4 provides stable support for the screen cylinder to prevent swaying during rotation. During the rotation of the screen cylinder 9, the waste tumbles inside: the liquid in the wet waste seeps through the screen holes 92 to the outside, falls into the water collection tank 11 below, and is discharged through the drain pipe 12—which can be connected to the sewage network or subsequent treatment equipment; the dry waste, pushed by the spiral plate 91 on the inner wall of the screen cylinder, moves towards the discharge chute 6 with the rotation of the screen cylinder 9 and is finally discharged from the discharge chute, completing the separation of dry and wet waste.

[0042] When the separated waste is found to have a high moisture content, or when the screen holes 92 are found to be severely clogged, valve 104 is opened. The high-pressure nozzle 106 of the outer water pipe 103 sprays high-pressure water along the radial direction of the screen holes 92, precisely impacting the impurities such as small vegetable leaves and fruit peel fragments that are clogging the screen holes, and flushing the blockages into the screen cylinder. At the same time, the fan-shaped nozzle 105 of the inner water pipe 102 sprays out a uniform water curtain. As the screen cylinder rotates, the water curtain completely covers the inner wall of the screen cylinder, washing away the impurities flushed out by the high-pressure nozzle and the wet waste residues adhering to the cylinder wall. The washed residues are pushed to the discharge chute by the spiral plate along with the dry waste. Since the nozzle 105 is located behind the high-pressure nozzle 106 in the direction of screen cylinder rotation, a coordinated cleaning process of flushing the blockages first and then cleaning the wall is formed, ensuring that the screen holes are always unobstructed and the separation efficiency is stable. The cover plate 13 acts as a shield during this process to prevent wastewater from being thrown to the outside as the screen cylinder rotates, keeping the environment clean.

[0043] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0044] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only for the purpose of helping to understand the method and core ideas of the present invention. The above descriptions are only preferred embodiments of the present invention. It should be noted that due to the limitations of textual expression, there are objectively infinite specific structures. For those skilled in the art, several improvements, modifications, or changes can be made without departing from the principles of the present invention, and the above technical features can also be combined in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. A dry and wet waste separation device that is easy to clean, characterized in that: The device includes a dry-wet separation mechanism (1) and a crushing mechanism (2). The dry-wet separation mechanism (1) includes a frame (3). The frame (3) is fixed with a feed chute (5) at one end adjacent to the crushing mechanism (2) and a discharge chute (6) at the other end away from the crushing mechanism (2). A second geared motor (8) is fixed on the frame (3) above the discharge chute (6). The second geared motor (8) drives a hollow frame (7). The hollow frame (7) is fixed at one end of a screen cylinder (9). A support wheel (4) is rotatably connected to the side of the screen cylinder (9). The support wheel (4) is mounted on the frame (3). The screen cylinder (9) is inclined downward toward the crushing mechanism (2). A spiral plate (91) is fixed on the inner wall of the screen cylinder (9). The surface of the screen cylinder (9) is provided with screen holes (92). Multiple screen holes (92) are evenly arranged in groups around the axis of the screen cylinder (9), and each group of screen holes (92) is equidistant from each other in the axial direction of the screen cylinder (9). A cleaning mechanism (10) is provided at one end of the screen cylinder (9). The cleaning mechanism (10) includes an inner water pipe (102) and an outer water pipe (103) located on the inner and outer sides of the screen cylinder (9), respectively. One end of the inner water pipe (102) and the outer water pipe (103) are connected to the main pipeline (101). Multiple nozzles (105) and high-pressure nozzles (106) are installed on the inner water pipe (102) and the outer water pipe (103), respectively. The axis of each high-pressure nozzle (106) is located in the radial direction of the circle where the center of a group of screen holes (92) is located.

2. The easy-to-clean dry and wet waste separation device according to claim 1, characterized in that: The nozzle (105) is a fan-shaped nozzle. Multiple nozzles (105) are equidistantly spaced along the axial direction of the inner water pipe (102) and the screen cylinder (9). The fan-shaped spray surfaces of two adjacent nozzles (105) are arranged parallel to each other.

3. The easy-to-clean dry and wet waste separation device according to claim 1, characterized in that: In the rotation direction of the screen cylinder (9), the nozzle (105) is located behind the high-pressure nozzle (106).

4. The easy-to-clean dry and wet waste separation device according to claim 1, characterized in that: The main pipeline (101) is fixed to the frame (3) by a pipe clamp, and a valve (104) is installed at one end of the main pipeline (101).

5. The easy-to-clean dry and wet waste separation device according to claim 1, characterized in that: The crushing mechanism (2) includes a bracket (21), on which a support shell (22) is fixed. The support shell (22) is located vertically above the feed trough (5). The bottom end of the feed trough (5) extends obliquely into the inner side of the screen cylinder (9). Crushing rollers (23) are installed parallel to each other on the inner side of the support shell (22). A transmission gear (24) is fixed at one end of the crushing roller (23). The transmission gears (24) installed on the two crushing rollers (23) mesh with each other and the transmission ratio is 1:

1. One of the crushing rollers (23) is connected to one end of the output shaft of a reduction motor (25). The reduction motor (25) is fixed on the outside of the support shell (22).

6. The easy-to-clean dry and wet waste separation device according to claim 1, characterized in that: A water collection trough (11) is fixed on the frame (3) directly below the screen cylinder (9), and the bottom end of the water collection trough (11) is connected to one end of the drain pipe (12).

7. A convenient-to-clean dry and wet waste separation device according to claim 6, characterized in that: A cover plate (13) is fixed on the dry and wet separation mechanism (1) above the water collection tank (11). The cover plate (13) covers the outside of the screen cylinder (9), and the cover plate (13) has a through hole adapted to the insertion cleaning mechanism (10).

8. The easy-to-clean dry and wet waste separation device according to claim 1, characterized in that: The support wheels (4) are arranged in pairs on the front and rear sides of the screen cylinder (9), and the two support wheels (4) in each pair are arranged opposite each other on both sides of the axis of the screen cylinder (9). The roller bracket in the support wheel (4) is fixed on the dry and wet separation mechanism (1), and the curved side of the roller in the support wheel (4) is rolled and connected to the outer surface of the screen cylinder (9).

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