A solid-liquid separation device for kitchen waste

Abstract

This utility model relates to the field of food waste treatment technology, and in particular to a solid-liquid separation device for food waste. The device includes a solid-liquid separation body, which comprises a separation chamber. A liquid discharge component is located at the bottom of the separation chamber, a feeding component is located at the top of the separation chamber, and a slag discharge component is located on the side wall. A spiral extrusion component is located inside the separation chamber, and a power drive device is connected to the spiral extrusion component. By optimizing the spiral extrusion component and combining it with a crushing tooth and segmented spiral design, the waste crushing and solid-liquid separation effects are enhanced. Simultaneously, the guide plate and filter screen structure improve separation efficiency, and the liquid and slag discharge components are convenient and efficient, achieving rapid and stable solid-liquid separation treatment of food waste.

Description

Technical Field

[0001] This utility model relates to the field of kitchen waste treatment technology, and in particular to a solid-liquid separation device for kitchen waste. Background Technology

[0002] Food waste is a significant source of organic waste generated in urban life, characterized by high water content, easy decomposition, and foul odor. With rapid urbanization and the booming catering industry, the amount of food waste is increasing daily. Improper handling not only leads to resource waste but also causes serious environmental pollution problems, such as bacterial growth, disease transmission, and soil and water contamination. Therefore, effective treatment of food waste has become an urgent environmental challenge.

[0003] Solid-liquid separation is a crucial step in the treatment of food waste. Through solid-liquid separation, the liquid and solid components of food waste can be separated, facilitating subsequent resource utilization and harmless treatment. However, existing solid-liquid separation equipment for food waste has many shortcomings.

[0004] Some equipment fails to separate liquids and solids effectively, resulting in solids containing significant moisture, increasing the difficulty and cost of subsequent processing. Conversely, liquids containing numerous solid impurities also diminish their value for resource utilization. Furthermore, some equipment has limited processing capacity, failing to meet the demands of large-scale food waste treatment. When handling large volumes of food waste, it is prone to blockages and malfunctions, impacting processing efficiency.

[0005] Furthermore, existing equipment also has structural design flaws. For example, the feeding assembly is poorly designed, leading to uneven feeding and potential material jamming; the liquid and slag discharge assemblies are poorly designed, resulting in uneven discharge of liquids and solids, causing liquid and slag accumulation and affecting the normal operation of the equipment. Additionally, some equipment has a simple spiral extrusion assembly design with insufficient crushing capacity, failing to effectively break down large pieces of debris in food waste and reducing the separation efficiency.

[0006] In conclusion, developing a solid-liquid separation device for kitchen waste that has good separation effect, strong processing capacity, and reasonable structure is of great practical significance. Utility Model Content

[0007] To address some of the problems existing in the prior art, this utility model provides a solid-liquid separation device for kitchen waste. This utility model enhances the waste crushing and solid-liquid separation effect by optimizing the spiral extrusion component and combining it with a crushing tooth and segmented spiral design. Simultaneously, the guide plate and filter screen structure improve separation efficiency, and the liquid and slag discharge components are convenient and efficient, achieving rapid and stable solid-liquid separation of kitchen waste.

[0008] To achieve the above objectives, this utility model provides a solid-liquid separation device for kitchen waste, including a solid-liquid separation device body. The solid-liquid separation body includes a separation chamber. A liquid discharge component is provided at the bottom of the separation chamber, a feeding component is provided at the top of the separation chamber, a slag discharge component is provided on the side wall, and a spiral extrusion component is provided inside the separation chamber. A power drive device is connected to the spiral extrusion component.

[0009] As a further improvement of this utility model, in order to break large debris into smaller particles, which is beneficial for subsequent extrusion and solid-liquid separation, the spiral extrusion assembly includes a spiral shaft rotatably disposed in the separation chamber. The spiral shaft is provided with spiral blades. One end of the spiral shaft extends out of the separation chamber and is connected to the driving device. An extrusion channel is formed between the outer edge of the spiral blade and the inner wall of the separation chamber. The spiral blade is provided with crushing teeth, which are spaced apart along the spiral direction of the spiral blade.

[0010] As a further improvement of this utility model, in order to prevent kitchen waste from scattering randomly in the separation chamber and to ensure that the kitchen waste can smoothly enter the screw extrusion assembly for subsequent processing, a guide plate is also provided inside the separation chamber. The guide plate is located above the screw extrusion assembly and is arc-shaped with its concave surface facing the feed inlet. The guide plate can guide the kitchen waste entering from the feed inlet to the starting end of the screw extrusion assembly. A filter ring support is provided inside the separation chamber, and a filter strip is provided on the filter ring support. The filter strip is arranged along the inner circumference of the filter ring support, and the outer circumference of the filter strip is also provided with a steel plate and reinforcing ribs for fixation.

[0011] As a further improvement of this utility model, in order to facilitate operators in controlling the feed amount and to facilitate cleaning of the feed hopper, the feed assembly includes a feed hopper connected to the separation chamber, and a pull-out feed baffle is provided on the side wall of the feed hopper.

[0012] As a further improvement of this utility model, in order to make the kitchen waste more tightly compressed and more frequently crushed, the spiral shaft is divided into a front spiral and a rear spiral. The pitch of the front spiral is smaller than that of the rear spiral, and the distribution density of the spiral blades on the front spiral is greater than that of the rear spiral.

[0013] As a further improvement of this utility model, in order to enable the separated liquid to flow quickly to the outlet under the action of gravity, the liquid outlet component includes an inclined liquid collection tank set at the bottom of the separation chamber, the liquid collection tank is connected to the outlet, and the inclination angle of the liquid collection tank is 5°-10°, the liquid collection tank can quickly guide the separated liquid to the outlet.

[0014] As a further improvement of this utility model, in order to enable the upper and lower discharge covers to rotate flexibly and facilitate the discharge of solid residue, the slag discharge assembly includes a bearing bracket connected to the separation chamber. The bearing bracket is equipped with the upper and lower discharge covers in conjunction with the screw extrusion assembly. The upper and lower ends of the bearing bracket are provided with reinforcing ribs. The upper and lower discharge covers are equipped with connecting blocks, and the connecting blocks and reinforcing ribs are rotatably configured.

[0015] As a further improvement of this utility model, in order to control the opening and closing of the upper and lower discharge covers and the amount of residue discharged, the reinforcing ribs are provided with connecting shafts, and the connecting shafts are connected to drive rods, which control the opening and closing angles of the upper and lower discharge covers.

[0016] When this utility model is in operation, the operator can appropriately pull open the removable feed baffle on the side wall of the feed hopper according to the amount of kitchen waste to be processed, so that the size of the feed inlet meets the feeding requirements.

[0017] The collected kitchen waste is poured into the feed hopper and falls into the separation chamber under its own gravity. At this time, the guide plate located above the screw extrusion assembly comes into play. Its arc-shaped concave surface faces the feed inlet and guides the kitchen waste to the starting end of the screw extrusion assembly, ensuring that the kitchen waste can smoothly enter the subsequent extrusion and separation area.

[0018] After the food waste enters the screw extrusion assembly, the crushing teeth on the screw blades begin to crush it as the screw shaft rotates. Because the screw shaft is divided into a front screw and a rear screw, the pitch of the front screw is smaller than that of the rear screw, and the distribution density of the screw blades on the front screw is greater than that on the rear screw. Therefore, the food waste is subjected to tighter compression and more frequent crushing at the front screw, and large pieces of food waste are broken into smaller particles.

[0019] Driven by the spiral blades, the food waste moves forward along the squeezing channel and is squeezed, causing the liquid inside to be squeezed out and flow to the bottom of the separation chamber through the gap between the spiral blades and the inner wall of the separation chamber.

[0020] The liquid separated from the food waste flows downwards within the separation chamber, passing through the filter strips on the circular filter support. The filter strips further filter the liquid, intercepting any fine solid particles that may be present, thus improving the purity of the liquid.

[0021] The filtered liquid enters an inclined collection tank located at the bottom of the separation chamber. The inclination angle of the collection tank is 5°-10°. Under the action of gravity, the liquid flows rapidly along the collection tank to the outlet and is finally discharged from the equipment to enter the subsequent liquid collection or treatment system.

[0022] After the screw extrusion assembly separates most of the liquid from the kitchen waste, solid residue accumulates near the discharge port. At this point, the operator controls the connecting shaft on the reinforcing rib via the drive rod, thereby controlling the opening and closing angles of the upper and lower discharge covers. The operator operates the drive rod to open the upper and lower discharge covers to the appropriate angle, and the solid residue is pushed out of the equipment from the discharge port by the screw shaft and enters the solid residue collection container.

[0023] The beneficial effects of this utility model are as follows:

[0024] Highly efficient solid-liquid separation capability:

[0025] Through the design of the spiral extrusion assembly, especially the extrusion channel formed between the spiral blades on the spiral shaft and the inner wall of the separation chamber, kitchen waste can be effectively extruded to achieve efficient solid-liquid separation.

[0026] The crushing teeth on the spiral blades can further crush the waste, improve the separation effect, and ensure that liquids and solids can be separated more thoroughly.

[0027] Optimized feed and flow guidance design:

[0028] The feeding hopper and pull-out feeding baffle in the feeding assembly facilitate the addition of kitchen waste and allow for adjustment of the feeding amount as needed.

[0029] The design of the baffle plate can guide the kitchen waste entering from the feed inlet to the starting end of the screw extrusion assembly, ensuring that the waste can enter the extrusion channel evenly and continuously, thereby improving the separation efficiency.

[0030] Enhanced structural stability and durability:

[0031] The filter ring support and filter strips inside the separation chamber, as well as the steel plate and reinforcing ribs around the filter strips, enhance the structural stability of the equipment and prevent the filter from deforming or being damaged.

[0032] The screw shaft is divided into a front screw and a rear screw. The pitch of the front screw is smaller than that of the rear screw, and the distribution density of the screw blades on the front screw is greater than that on the rear screw. This design enables the screw extrusion assembly to generate greater pressure during the extrusion process, while reducing energy consumption and improving the durability of the equipment.

[0033] Convenient liquid and sludge discharge design:

[0034] The inclined collection tank design in the liquid outlet assembly can quickly guide the separated liquid to the outlet, preventing liquid from accumulating in the separation chamber and improving liquid outlet efficiency.

[0035] The design of the bearing bracket, upper discharge cover, lower discharge cover, connecting shaft, and drive rod in the slag discharge assembly makes the slag discharge process more convenient and controllable. By controlling the opening and closing angles of the upper and lower discharge covers with the drive rod, the slag discharge rate can be easily adjusted to meet different processing needs. Attached Figure Description

[0036] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings:

[0037] Figure 1 This is a structural diagram of the present invention.

[0038] Figure 2 This is an internal structural diagram of the present invention.

[0039] Figure 3 This is a cross-sectional view of the helical blade.

[0040] Figure 4 This is a structural diagram of the feeding assembly.

[0041] Figure 5 This is a structural diagram of the helical shaft.

[0042] Figure 6 This is a structural diagram of the liquid outlet assembly.

[0043] The components include: 1. Separation chamber; 2. Liquid discharge assembly; 3. Feeding assembly; 4. Slag discharge assembly; 5. Spiral extrusion assembly; 6. Power drive device; 7. Spiral shaft; 8. Spiral blades; 9. Crushing teeth; 10. Guide plate; 11. Feed hopper; 12. Feed baffle; 13. Front spiral; 14. Rear spiral; 15. Liquid collection tank; 16. Liquid outlet; 17. Bearing bracket; 18. Upper discharge cover; 19. Lower discharge cover; 20. Connecting block; 21. Connecting shaft; 22. Drive rod; 23. Filter screen ring bracket; 24. Filter screen strip; 25. Steel plate. Detailed Implementation

[0044] To enable those skilled in the art to better understand the technical solutions in this application, the following description is provided in conjunction with the appendix. Figure 1-6 The present invention will be further described below. The following embodiments are only used to illustrate the technical solution of the present invention more clearly, and should not be used to limit the protection scope of the present invention.

[0045] like Figure 1-6 The solid-liquid separation device for kitchen waste shown includes a solid-liquid separation device body, which includes a separation chamber 1. A liquid discharge component 2 is provided at the bottom of the separation chamber 1, a feeding component 3 is provided at the top of the separation chamber 1, a slag discharge component 4 is provided on the side wall, and a spiral extrusion component 5 is provided inside the separation chamber 1. A power drive device 6 is connected to the spiral extrusion component 5.

[0046] The spiral extrusion assembly 5 includes a spiral shaft 7 rotatably disposed in the separation chamber 1, a spiral blade 8 disposed on the spiral shaft 7, one end of the spiral shaft 7 extending out of the separation chamber 1 and connected to the driving device, an extrusion channel being formed between the outer edge of the spiral blade 8 and the inner wall of the separation chamber 1, and a crushing tooth 9 disposed on the spiral blade 8, the crushing tooth 9 being spaced apart along the spiral direction of the spiral blade 8.

[0047] The separation chamber 1 is also equipped with a guide plate 10, which is located above the screw extrusion assembly 5 and is arc-shaped with its concave surface facing the feed inlet. The guide plate 10 can guide the kitchen waste entering from the feed inlet to the starting end of the screw extrusion assembly 5. The separation chamber 1 is equipped with a filter ring support 23, and a filter strip 24 is provided on the filter ring support 23. The filter strip 24 is arranged along the inner circumference of the filter ring support 23, and the outer circumference of the filter strip 24 is also provided with a steel plate 25 and reinforcing ribs for fixation.

[0048] The feeding assembly 3 includes a feeding hopper 11 connected to the separation chamber 1, and a retractable feeding baffle 12 is provided on the side wall of the feeding hopper 11.

[0049] The spiral shaft 7 is divided into a front spiral 13 and a rear spiral 14. The pitch of the front spiral 13 is smaller than that of the rear spiral 14, and the distribution density of the spiral blades 8 on the front spiral 13 is greater than that on the rear spiral 14.

[0050] The liquid outlet assembly 2 includes an inclined liquid collection tank 15 disposed at the bottom of the separation chamber 1. The liquid collection tank 15 is connected to a liquid outlet 16, and the inclination angle of the liquid collection tank 15 is 5°-10°. The liquid collection tank 15 can quickly guide the separated liquid to the liquid outlet 16.

[0051] The slag discharge assembly 4 includes a bearing bracket 17 connected to the separation chamber 1. The bearing bracket 17 is equipped with an upper discharge cover 18 and a lower discharge cover 19 in conjunction with the screw extrusion assembly 5. The upper and lower ends of the bearing bracket 17 are provided with reinforcing ribs. The upper discharge cover 18 and the lower discharge cover 19 are equipped with connecting blocks 20, and are rotatably connected to the reinforcing ribs via the connecting blocks 20.

[0052] The reinforcing rib is interspersed with a connecting shaft 21, and the connecting shaft 21 is connected to a drive rod 22, which controls the opening and closing angles of the upper discharge cover 18 and the lower discharge cover 19.

[0053] When this utility model is in operation, the operator can appropriately pull open the removable feed baffle 12 on the side wall of the feed hopper 11 according to the amount of kitchen waste to be processed, so that the size of the feed inlet meets the feeding requirements.

[0054] The collected kitchen waste is poured into the feed hopper 11, where it falls into the separation chamber 1 under its own gravity. At this time, the guide plate 10 located above the screw extrusion assembly 5 comes into play, with its arc-shaped concave surface facing the feed inlet, guiding the kitchen waste to the starting end of the screw extrusion assembly 5, ensuring that the kitchen waste can smoothly enter the subsequent extrusion and separation area.

[0055] After the food waste enters the screw extrusion assembly 5, the crushing teeth 9 on the screw blades 8 begin to crush the food waste as the screw shaft 7 rotates. Since the screw shaft 7 is divided into a front screw 13 and a rear screw 14, the pitch of the front screw 13 is smaller than that of the rear screw 14, and the distribution density of the screw blades 8 on the front screw 13 is greater than that on the rear screw 14. Therefore, the food waste is subjected to tighter compression and more frequent crushing at the front screw 13, and large pieces of food waste are crushed into smaller particles.

[0056] Driven by the spiral blades 8, the kitchen waste moves forward along the squeezing channel and is squeezed, causing the liquid inside to be squeezed out and flow to the bottom of the separation chamber 1 through the gap between the spiral blades 8 and the inner wall of the separation chamber 1.

[0057] The liquid separated from the food waste flows downwards within the separation chamber 1, passing through the filter strips 24 on the filter ring support 23. The filter strips 24 further filter the liquid, intercepting any fine solid particles that may be carried within, thus improving the purity of the liquid.

[0058] The filtered liquid enters the inclined collection tank 15 located at the bottom of the separation chamber 1. The inclination angle of the collection tank 15 is 5° - 10°. Under the action of gravity, the liquid flows rapidly along the collection tank 15 to the outlet 16 and is finally discharged from the equipment to enter the subsequent liquid collection or treatment system.

[0059] After the screw extrusion assembly 5 separates most of the liquid from the kitchen waste, solid residue accumulates near the slag outlet. At this time, the operator controls the connecting shaft 21 on the reinforcing rib through the drive rod 22, thereby controlling the opening and closing angle of the upper discharge cover 18 and the lower discharge cover 19. The operator operates the drive rod 22 to open the upper discharge cover 18 and the lower discharge cover 19 to the appropriate angle. Under the push of the screw shaft 7, the solid residue is discharged from the slag outlet and enters the solid residue collection container.

[0060] This utility model is not limited to the above embodiments. Based on the technical solutions disclosed in this utility model, those skilled in the art can make some substitutions and modifications to some of the technical features without creative labor, and these substitutions and modifications are all within the protection scope of this utility model.

Claims

1. A solid-liquid separation device for kitchen waste, comprising a solid-liquid separation device body, characterized in that, The solid-liquid separation body includes a separation chamber (1), a liquid outlet assembly (2) is provided at the bottom of the separation chamber (1), a feeding assembly (3) is provided at the top of the separation chamber (1), a slag outlet assembly (4) is provided on the side wall, a spiral extrusion assembly (5) is provided inside the separation chamber (1), and a power drive device (6) is connected to the spiral extrusion assembly (5). The slag discharge assembly (4) includes a bearing bracket (17) connected to the separation chamber (1). The bearing bracket (17) is equipped with an upper discharge cover (18) and a lower discharge cover (19) in conjunction with the screw extrusion assembly (5). The upper and lower ends of the bearing bracket (17) are provided with reinforcing ribs. The upper discharge cover (18) and the lower discharge cover (19) are equipped with connecting blocks (20), and the connecting blocks (20) are rotatably connected to the reinforcing ribs. The reinforcing rib is interspersed with a connecting shaft (21), and the connecting shaft (21) is connected to a drive rod (22). The opening and closing angles of the upper discharge cover (18) and the lower discharge cover (19) are controlled by the drive rod (22).

2. The solid-liquid separation device for kitchen waste according to claim 1, characterized in that, The spiral extrusion assembly (5) includes a spiral shaft (7) rotatably disposed in the separation chamber (1), a spiral blade (8) is provided on the spiral shaft (7), one end of the spiral shaft (7) extends out of the separation chamber (1) and is connected to the driving device, the outer edge of the spiral blade (8) forms an extrusion channel with the inner wall of the separation chamber (1), and the spiral blade (8) is provided with crushing teeth (9), the crushing teeth (9) are distributed at intervals along the spiral direction of the spiral blade (8).

3. The solid-liquid separation device for kitchen waste according to claim 1, characterized in that, The separation chamber (1) is also provided with a guide plate (10). The guide plate (10) is located above the screw extrusion assembly (5) and is arc-shaped with its concave surface facing the feed inlet. The guide plate (10) can guide the kitchen waste entering from the feed inlet to the starting end of the screw extrusion assembly (5). The separation chamber (1) is provided with a filter ring support (23). The filter ring support (23) is provided with a filter strip (24). The filter strip (24) is arranged along the inner circumference of the filter ring support (23). The outer circumference of the filter strip (24) is also provided with a steel plate (25) and reinforcing ribs for fixation.

4. The solid-liquid separation device for kitchen waste according to claim 1, characterized in that, The feeding assembly (3) includes a feeding hopper (11) connected to the separation chamber (1), and a pull-out feeding baffle (12) is provided on the side wall of the feeding hopper (11).

5. A solid-liquid separation device for kitchen waste according to claim 2, characterized in that, The spiral shaft (7) is divided into a front spiral (13) and a rear spiral (14). The pitch of the front spiral (13) is smaller than that of the rear spiral (14), and the distribution density of the spiral blades (8) on the front spiral (13) is greater than that of the rear spiral (14).

6. A solid-liquid separation device for kitchen waste according to claim 1, characterized in that, The liquid outlet assembly (2) includes an inclined liquid collection tank (15) disposed at the bottom of the separation chamber (1). The liquid collection tank (15) is connected to a liquid outlet (16), and the inclination angle of the liquid collection tank (15) is 5°-10°. The liquid collection tank (15) can quickly guide the separated liquid to the liquid outlet (16).

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