Kitchen waste dewatering device

Abstract

The application discloses a kitchen waste dewatering device, which is characterized by comprising a frame, a solid-liquid separation barrel arranged on the frame, a supporting plate arranged below the solid-liquid separation barrel, a discharging cone arranged on the lower side of the supporting plate, a vertical separation barrel rotating shaft arranged on the left and right sides of the solid-liquid separation barrel and arranged on the frame, and a shaft sleeve arranged on the separation barrel rotating shaft. The solid-liquid separation barrel is composed of a plurality of horizontally arranged separation pieces I and II, the separation pieces I and II are alternately arranged, one side of the separation pieces I and II is provided with a round hole, and the other side of the separation pieces I and II is provided with two U-shaped openings respectively. The round hole of the separation piece I is sleeved on the shaft sleeve on one side, and the round hole of the separation piece II is sleeved on the shaft sleeve on the other side. The U-shaped openings of the separation pieces I and II are clamped in a driving shaft. The device can realize self-lubrication, has high dewatering efficiency, will not be blocked, and can be used for dewatering kitchen waste.

Description

Technical Field

[0001] This invention relates to a waste treatment device, and more particularly to a device for dehydrating kitchen waste. Background Technology

[0002] In the prior art, a food waste dewatering device is disclosed, with publication number CN221825717U and publication date: 20241011. The device has a food waste dewatering chamber formed inside its dewatering tank. A food waste dewatering feed trough is installed on the dewatering tank, and the food waste to be dewatered enters the dewatering tank through the feed trough, thus entering the dewatering chamber. A squeezing pusher plate is located inside the dewatering tank and is connected to a horizontal squeezing and pushing mechanism. The horizontal squeezing and pushing mechanism can drive the squeezing pusher plate to move horizontally within the dewatering tank. The tail of the dewatering tank is the outlet for the dewatered food waste. This device is driven by a high-power motor or cylinder to achieve horizontal squeezing and dewatering. It has a fast dewatering time, simple structure, low cost, and is easy to clean and maintain. It can accommodate and withstand a large amount of waste at a time, making it suitable for large-scale kitchen waste processing applications.

[0003] In the prior art, a kitchen waste dewatering device is also disclosed, with publication number CN221641869U and publication date: 20240903. This device includes a main body, which comprises a column and a sealing cover. A squeezing cylinder is disposed within the column. The sealing cover is fitted onto the main body, and a squeezing plate is disposed on the sealing cover. The squeezing plate extends into the squeezing cylinder. Filter holes are provided on the side wall of the squeezing cylinder, and a cleaning component for cleaning the filter holes is provided on the column. After kitchen waste enters the squeezing cylinder, the squeezing plate is controlled to squeeze the kitchen waste, causing the water in the kitchen waste to flow out through the filter holes. After prolonged operation, to prevent waste from clogging the filter holes, the cleaning component is controlled to clean the filter holes, preventing the filter screen from being clogged by waste residue and affecting the dewatering effect of the kitchen waste dewatering device.

[0004] Its shortcomings are: food waste usually contains a large amount of oily substances and mushy starch, which have a certain degree of fluidity and are often difficult to separate by static sedimentation. At the same time, it is also difficult to separate by filtration. When filtering and pressurizing, if the filter holes are too small, the filter screen is easy to get clogged, and if the filter holes are too large, the filter screen is easy to leak. Therefore, the current dewatering effect of food waste is not good. Summary of the Invention

[0005] The purpose of this invention is to provide a kitchen waste dewatering device that has high dewatering efficiency. During the filtration process, the separating plates can achieve self-break-in and always maintain the separating plates in a high-efficiency filtration state, without causing dewatering difficulties due to clogging.

[0006] The objective of this invention is achieved as follows: A kitchen waste dewatering device includes a frame, on which a solid-liquid separation tank is mounted. A feeding tank is located at the top of the frame, and an inlet for feeding material into the solid-liquid separation tank is located at the bottom of the feeding tank. A support plate is located below the solid-liquid separation tank, and a discharge cone is located on the lower side of the support plate. The solid-liquid separation tank is mounted on the frame via vertically arranged separation tank shafts on its left and right sides, with bushings fitted around the shafts. The solid-liquid separation tank is composed of several horizontally arranged separation plates (first and second), stacked together. Separation plates (first and second) are interleaved and spaced apart, forming a circular ring. Each separation plate (first and second) has a circular hole on one side and two U-shaped openings on the other side. The circular hole of separation plate (first) is fitted onto a... On one side of the bushing, the round hole of the second separator plate is fitted onto the bushing on the other side; two fork positioning shafts are also vertically installed on the frame, and the two fork positioning shafts are respectively located on the front and rear sides of the solid-liquid separation tank. The upper and lower ends of the fork positioning shafts are respectively connected to T-shaped forks, and the two outer arms of the upper and lower forks are respectively connected by actuating shafts. The actuating shafts are respectively fitted into the U-shaped openings of the first separator plate and the second separator plate; the two forks on the front and rear sides of the frame are centrally symmetrically arranged, and the middle arm of the fork is provided with a waist-shaped hole. A fork drive motor is provided on the upper part of the frame, and the output end of the fork drive motor is connected to an eccentric shaft. The eccentric section of the eccentric shaft is fitted into the waist-shaped hole. The main shaft sections of the two eccentric shafts on the front and rear sides are provided with a synchronous motion mechanism to make the eccentric shafts on the front and rear sides rotate synchronously.

[0007] When the device is working, the large circular hole between the first and second separating plates forms the inner cavity of the solid-liquid separation tank. The upper opening allows kitchen waste containing water and oil to enter, and the bottom discharge cone is used for discharge. Water, oil, porridge and other solids enter the solid-liquid separation tank from the feed port at the bottom of the feed tank. At this time, the fork drive motor works, driving the eccentric shaft to rotate. The eccentric section of the eccentric shaft makes a circular motion and drives the fork to swing back and forth around the fork positioning shaft through the waist-shaped hole. The actuating shaft drives the first and second separation plates to move. The first separation plate swings back and forth around one separation barrel shaft, and the second separation plate swings around another separation barrel shaft, so that the first and second separation plates make a back-and-forth misaligned movement. The liquid in the kitchen waste flows out from the tiny gap between the first and second separation plates, thus seeping outward around the solid-liquid separation barrel. During the movement, the first and second separation plates constantly push the kitchen waste inside. Under the combined action of gravity and pushing, the liquid in the kitchen waste continues to seep out. Water, oil and other liquids further seep out from the gap between the first and second separation plates, thus achieving the purpose of dehydration. As liquid continuously seeps out, the granules and small particles in the waste accumulate in the gap between separating plate one and separating plate two. Due to the constant friction between separating plate one and separating plate two, the accumulated material is continuously pushed and torn, preventing clogging and ensuring high filtration efficiency. Furthermore, the separating plates self-fit during the filtration process; the uneven surfaces between separating plate one and separating plate two also undergo self-fitting to achieve a more precise fit, preventing material leakage and maintaining the separating plates in a consistently high-efficiency filtration state, thus avoiding dehydration difficulties caused by clogging. This device is specifically designed for the dehydration treatment of kitchen waste.

[0008] Furthermore, the lower end of the separator shaft is mounted in a lower bearing seat via a lower bearing, and the upper end is mounted in an upper bearing seat via an upper bearing. The lower and upper bearing seats are fixed to the frame. The lower end of the bushing is provided with a lower positioning sleeve, which is supported between the lower support plate and the lower bearing seat. The upper end of the separator shaft is fitted with an upper positioning sleeve, and a compression spring is provided above the upper positioning sleeve to press down on separator plate one and separator plate two. By continuously applying pressure through the compression spring, a good filtration gap is maintained between separator plate one and separator plate two.

[0009] Furthermore, the compression spring is installed inside a semi-enclosed spring seat, and a pressure cap is provided on the upper side of the upper bearing seat.

[0010] Furthermore, the synchronous motion mechanism includes a driving sprocket and a driven sprocket, which are connected by a chain. The synchronous motion mechanism may also include a timing belt and timing pulleys that are matched and installed together. All of the above structures enable the eccentric shafts on both sides to move synchronously.

[0011] Furthermore, a water receiving tray is provided on the lower outer side of the solid-liquid separation tank, and a water outlet is provided on the lower side of the water receiving tray.

[0012] To further facilitate material discharge, the discharge cone tapers downwards in a conical shape, with a discharge port on the lower side. A discharge motor is located on the outer side of the bottom of the discharge cone, and propulsion blades driven by the discharge motor are installed inside the discharge cone. The propulsion blades are spirally shaped, wider at the top and narrower at the bottom, matching the discharge cone design. The propulsion blades push the material, facilitating the discharge of the dehydrated material. Alternatively, the material can also be discharged directly through a discharge valve located at the bottom of the discharge cone. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the present invention.

[0014] Figure 2 This is a schematic diagram of a partial structure of the filter barrel.

[0015] Figure 3 for Figure 1 AA view.

[0016] Figure 4 for Figure 1 A schematic diagram of the local structure of BB.

[0017] Figure 5 for Figure 1 A magnified view of part C.

[0018] Figure 6 This is a schematic diagram of the installation structure of the separator plate and the shift fork.

[0019] Figure 7 A schematic diagram illustrating the working principle of this invention.

[0020] Figure 8 A schematic diagram of the staggered positions of the separator plates during operation.

[0021] In the diagram, 1 is the feed tank, 2 is the fork drive motor, 3 is the drive sprocket, 4 is the eccentric shaft, 5 is the fork, 6 is the actuating shaft, 7 is the separation tank shaft, 8 is the bushing, 9 is the first separation plate, 9a is the first radial protrusion, 9b is the first U-shaped opening, 10 is the second separation plate, 10a is the second radial protrusion, 10b is the second U-shaped opening, 11 is the support plate, 12 is the lower bearing seat, 13 is the discharge motor, 14 is the discharge cone, 15 is the water outlet, 16 is the water receiving tray, 17 is the lower positioning sleeve, 18 is the frame, 19 is the feed inlet, 20 is the eccentric section, 21 is the lower bearing, 22 is the upper positioning sleeve, 23 is the compression spring, 24 is the upper bearing, 25 is the pressure cap, 26 is the spring seat, 27 is the fork positioning shaft, 28 is the chain, 29 is the waist-shaped hole, 30 is the upper bearing seat, 31 is the propulsion blade, 32 is the discharge outlet, 33 is the driven sprocket, and 34 is the solid-liquid separation tank. Detailed Implementation

[0022] like Figure 1-5As shown, a kitchen waste dewatering device is provided. A solid-liquid separation tank 34 is installed on the frame 18. A feeding tank 1 is provided at the top of the frame 18. The bottom of the feeding tank 1 is provided with a feeding port 19 for feeding the solid-liquid separation tank 34. A support plate 11 is provided below the solid-liquid separation tank 34. A discharge cone 14 is provided on the lower side of the support plate 11. The discharge cone 14 tapers downwards in a conical shape. A discharge port 32 is provided on the lower side. A discharge motor 13 is provided on the outer side of the bottom of the discharge cone 14. A propulsion blade 31 driven by the discharge motor 13 is provided inside the discharge cone 14. The propulsion blade 31 is in a spiral shape that matches the discharge cone 14, with the upper part being larger and the lower part being smaller. The solid-liquid separation tank 34 is installed on the frame 18 on the left and right sides respectively via vertically arranged separation tank shafts 7. A bushing 8 is fitted on the outside of the separation tank shafts 7.

[0023] The solid-liquid separation tank 34 is composed of several horizontally arranged separation plates 9 and 10 stacked together. The separation plates 9 and 10 are interspersed with each other at intervals. The separation plates 9 and 10 are in a circular shape. The large circular hole in the middle of the separation plates 9 and 10 forms the inner cavity of the solid-liquid separation tank 34. The upper opening allows kitchen waste containing water and oil to enter, and the bottom discharge cone 14 is used for discharge.

[0024] Separator 9 and separator 10 each have a round hole on one side and two U-shaped openings on the other side. The U-shaped openings are positioned on the corresponding radial protrusions, such as... Figure 3 , 4 The U-shaped opening 9B shown in Figures 6 and 7 is disposed on the radial protrusion 9a, and the U-shaped opening 10B is disposed on the radial protrusion 10a.

[0025] The circular hole of the first separator 9 is fitted onto the bushing 8 on one side, and the circular hole of the second separator 10 is fitted onto the bushing 8 on the other side. In the top view, the first separator 9 and the second separator 10 are symmetrically arranged. The U-shaped opening 9B of the first separator 9 is located on both sides of the circular hole of the second separator 10, and correspondingly, the U-shaped opening 10B of the second separator 10 is located on both sides of the circular hole of the first separator 9.

[0026] Two fork positioning shafts 27 are vertically mounted on the frame 18. The two fork positioning shafts 27 are located on the front and rear sides of the solid-liquid separation tank 34, respectively. The upper and lower ends of the fork positioning shafts 27 are respectively connected to T-shaped forks 5. The forks 5 are integrally connected by a middle arm and two outer arms on both sides. The two outer arms of the upper and lower forks 5 are connected by actuating shafts 6, so that the upper and lower forks 5 and the two actuating shafts 6 constitute an integral fixing assembly. There is one set of this fixing assembly on the front and rear sides of the solid-liquid separation tank 34. One set of actuating shafts 6 is respectively installed in the U-shaped openings of the front separation plate 1 9 and the second separation plate 10, and the other set of actuating shafts 6 is respectively installed in the rear... The U-shaped openings of the side separation plates 9 and 10; the two shift forks 5 on the front and rear sides of the frame 18 are centrally symmetrically arranged, and the middle arm of the shift fork 5 is provided with a waist-shaped hole 29. A shift fork drive motor 2 is provided on the upper part of the frame 18. The output end of the shift fork drive motor 2 is connected to an eccentric shaft 4. The eccentric section 20 of the eccentric shaft 4 is fitted into the waist-shaped hole 29. The main shaft of the eccentric shaft 4 is rotated around the rotation axis of the output end of the shift fork drive motor 2, and the axis of the eccentric section 20 moves in a circle around the eccentric radius. The length of the waist-shaped hole 29 needs to meet the requirements of the eccentric section 20 to avoid motion interference. The corresponding positional relationship during installation is as follows: Figure 6 As shown. The eccentric shaft 4 can be a crank mechanism as a whole, with the main shaft sections at both ends used for support and positioning on the frame 18, so that the eccentric section 20 can rotate stably.

[0027] Synchronous motion mechanisms are installed on the main shaft sections of the two eccentric shafts 4 on the front and rear sides to ensure that the eccentric shafts 4 on the front and rear sides rotate synchronously. For example... Figure 3 As shown, the synchronous motion mechanism includes a driving sprocket 3 and a driven sprocket 33, which are connected by a chain 28. The synchronous motion mechanism can also consist of a matching synchronous belt and synchronous pulleys. All of the above structures enable the eccentric shafts 4 on both sides to move synchronously.

[0028] The lower end of the separator shaft 7 is mounted in the lower bearing 21 seat 12 via the lower bearing 21, and the upper end is mounted in the upper bearing 24 seat 30 via the upper bearing 24. The lower bearing 21 seat 12 and the upper bearing 24 seat 30 are fixed on the frame 18. The lower end of the bushing 8 is provided with a lower positioning sleeve 17, which is supported between the lower support plate 11 and the lower bearing 21 seat 12. The lower end of the bushing 8 passes through the support plate 11 and abuts against the lower positioning sleeve 17. The upper end of the separator shaft 7 is fitted with an upper positioning sleeve 22. Above the upper positioning sleeve 22 is a compression spring 23 that presses down on the first separator plate 9 and the second separator plate 10. The compression spring 23 is installed in a semi-enclosed spring seat 26 to protect the compression spring 23. The compression spring 23 continuously applies pressure to maintain a good filtration gap between the first separator plate 9 and the second separator plate 10. When under force, the compression spring 23 provides cushioning. When the first separator plate 9 and the second separator plate 10 wear, the gap between them can be automatically compensated. The upper side of the upper bearing 24 seat 30 is provided with a pressure cap 25 to protect the bearing, and grease can be added into the bearing to ensure bearing lubrication.

[0029] A water receiving tray 16 is provided on the lower outer side of the solid-liquid separation tank 34, and a water outlet 15 is provided on the lower side of the water receiving tray 16.

[0030] When the device is in operation, water, oil, viscous substances, and other solids enter the solid-liquid separation tank 34 through the feed inlet 19 at the bottom of the feed tank 1. For example... Figure 7 , 8As shown, at this time, the fork drive motor 2 is working, driving the eccentric shaft 4 to rotate. The eccentric section 20 of the eccentric shaft 4 makes a circular motion and drives the fork 5 to swing back and forth around the fork positioning shaft 27 through the waist-shaped hole 29. The actuating shaft 6 drives the separation plate 1 9 and the separation plate 2 10 to move. Among them, the separation plate 1 9 swings back and forth around one separation bucket rotating shaft 7, and the separation plate 2 10 swings around the other separation bucket rotating shaft 7, so that the separation plate 1 9 and the separation plate 2 10 make a reciprocating misalignment motion between them. Liquid in the waste flows out through the tiny gap between separating plate 9 and separating plate 10, thus seeping outwards around the solid-liquid separation tank 34. During their movement, separating plate 9 and separating plate 10 continuously push and shove the internal food waste. Under the combined effect of gravity and pushing, liquid in the food waste continuously seeps out, with water, oil, and other liquids further seeping out from the gap between separating plate 9 and separating plate 10, falling into the water receiving tray 16, and then leaving the device from the outlet 15. The material inside the solid-liquid separation tank 34 achieves dehydration. The dehydrated food waste is then pushed out from the discharge port 32 by the propulsion blades 31. During the aforementioned process, as liquid continuously seeps out, the granular material and small particles in the waste accumulate in the gap between separator 9 and separator 10. Due to the constant mutual friction between separator 9 and separator 10, the material accumulated on the inner edges of separator 9 and separator 10 is continuously pushed and torn, breaking down into a blockage state, allowing the liquid to continuously seep out. The process does not cause blockage, resulting in high filtration efficiency. Furthermore, the separators can self-fit during filtration; the uneven surfaces between separator 9 and separator 10 will also undergo self-fitting to achieve a more precise fit, preventing material leakage and ensuring that the separators are always in a highly efficient filtration state, preventing dehydration difficulties due to blockage.

[0031] This invention is not limited to the above embodiments. Based on the technical solutions disclosed in this invention, those skilled in the art can make some substitutions and modifications to some of the technical features without creative effort, and all such substitutions and modifications are within the protection scope of this invention.

Claims

1. A food waste dewatering device, comprising a frame, a solid-liquid separation tank mounted on the frame, a feeding tank at the top of the frame, and a feeding inlet at the bottom of the feeding tank for feeding material into the solid-liquid separation tank, characterized in that: A support plate is provided below the solid-liquid separation tank, and a discharge cone is provided on the lower side of the support plate. The solid-liquid separation tank is mounted on the frame via vertically arranged separation tank shafts on the left and right sides, and bushings are fitted around the separation tank shafts. The solid-liquid separation tank is composed of several horizontally arranged separation plates (plate 1 and plate 2) stacked together, with plate 1 and plate 2 interleaved and spaced apart. Plate 1 and plate 2 are generally circular. One side of plate 1 and plate 2 has a round hole, and the other side has two U-shaped openings. The round hole of plate 1 fits into the bushing on one side, and the round hole of plate 2 fits into the bushing on the other side. Two other vertically arranged... Two shift fork positioning shafts are respectively located on the front and rear sides of the solid-liquid separation tank. The upper and lower ends of the shift fork positioning shafts are respectively connected to T-shaped shift forks. The two outer arms of the upper and lower shift forks are connected by shift shafts. The shift shafts are respectively installed in the U-shaped openings of the first and second separation plates. The two shift forks on the front and rear sides of the frame are centrally symmetrically arranged. The middle arm of the shift fork is provided with a waist-shaped hole. A shift fork drive motor is provided on the upper part of the frame. The output end of the shift fork drive motor is connected to an eccentric shaft. The eccentric section of the eccentric shaft is fitted into the waist-shaped hole. The main shaft sections of the two eccentric shafts on the front and rear sides are provided with a synchronous motion mechanism to make the eccentric shafts on the front and rear sides rotate synchronously. The lower end of the separator shaft is installed in the lower bearing seat via the lower bearing, and the upper end is installed in the upper bearing seat via the upper bearing. The lower bearing seat and the upper bearing seat are fixed on the frame. The lower end of the bushing is provided with a lower positioning sleeve, which is supported between the support plate and the lower bearing seat. The upper end of the separator shaft is fitted with an upper positioning sleeve, and a compression spring is provided above the upper positioning sleeve to press down on the first and second separator plates. The discharge cone tapers downwards in a conical shape, with a discharge port on the lower side. A discharge motor is located on the outer side of the bottom of the discharge cone, and a propulsion blade driven by the discharge motor is located inside the discharge cone. The propulsion blade is in a spiral shape that matches the discharge cone, with the upper part being larger and the lower part being smaller.

2. The kitchen waste dewatering device according to claim 1, characterized in that, The compression spring is installed in a semi-enclosed spring seat, and a pressure cap is provided on the upper side of the upper bearing seat.

3. The kitchen waste dewatering device according to claim 1, characterized in that, The synchronous motion mechanism includes a driving sprocket and a driven sprocket, which are connected by a chain.

4. The kitchen waste dewatering device according to claim 1, characterized in that, The synchronous motion mechanism includes a timing belt and timing pulley that are matched and installed together.

5. The kitchen waste dewatering device according to claim 1, characterized in that, A water receiving tray is located on the lower outer side of the solid-liquid separation tank, and a water outlet is located on the lower side of the water receiving tray.

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