Kitchen waste screening and filtering device

Abstract

The utility model discloses a kind of kitchen waste screening filtering devices, belong to kitchen waste processing technical field.The traditional spiral press inconvenient feeding, need to rely on external equipment and the problem of large floor area.Solution is as follows: rectangular feed hopper is equipped at the top feed inlet of spiral press body, detachable U-shaped mounting bracket is on it, and pumping pump is mounted on the bracket, pumping hose is connected to the input end of pump, detachable metal counterweight nozzle is connected to the end of tube, the nozzle is inserted into the material collecting barrel, and the output end of pump is connected to the material conveying pipe to the feed hopper.U-shaped mounting bracket is detachably connected with rectangular feed hopper through U-shaped clamping bracket and inner hexagonal bolt.This device integrates pumping feeding and spiral press screening, without additional feeding equipment, reducing floor area, metal counterweight nozzle avoids suction, and is detachable with pumping hose, convenient to replace, suitable for small and medium-sized processing scene.

Description

Technical Field

[0001] This utility model relates to the field of kitchen waste treatment technology, and in particular to a kitchen waste screening and filtering device. Background Technology

[0002] Currently, screw presses are commonly used screening and filtration equipment in the process of food waste treatment, mainly used to achieve solid-liquid separation and volume reduction of food waste.

[0003] Existing screw presses suffer from inconvenient feeding issues in actual use. Typically, kitchen waste needs to be manually dumped into the screw press's inlet, which significantly increases the labor intensity for workers. Although auger feeders are used in some scenarios to assist feeding and avoid manual dumping of materials directly into the screw press's inlet, this method still requires manual dumping of kitchen waste into the auger feeder's inlet, failing to fundamentally solve the problem of manual handling and dumping. Furthermore, the additional auger feeder increases the overall footprint of the equipment, making it less suitable for small to medium-sized processing scenarios with limited space.

[0004] To address the aforementioned problems, this utility model document proposes a screening and filtering device for kitchen waste. Utility Model Content

[0005] This utility model provides a screening and filtering device for kitchen waste, which solves the shortcomings of the existing technology, such as the inconvenience of feeding traditional screw presses, the need for external equipment, and the large footprint.

[0006] This utility model provides the following technical solution: A food waste screening and filtering device includes: The screw press body has a rectangular feed hopper welded and fixed at the feed inlet at the top. A U-shaped mounting frame is detachably installed on the top of the rectangular feed hopper. A suction pump is fixedly installed on the top of the U-shaped mounting frame. The input end of the suction pump is connected to a suction hose. The other end of the suction hose is detachably equipped with a metal counterweight nozzle to prevent its opening from floating. The metal counterweight nozzle extends into a collection bucket for holding the solid-liquid mixture of crushed kitchen waste. The output end of the suction pump is connected to a conveying pipe. The other end of the conveying pipe passes through the inner wall of the U-shaped mounting frame and extends into the rectangular feed hopper.

[0007] In one possible design, both ends of the bottom of the U-shaped mounting bracket are welded and fixed with U-shaped clamping brackets for engaging the top of the rectangular feed hopper.

[0008] In one possible design, the U-shaped clamping frame and the rectangular feed hopper are reinforced by two hexagon socket head cap screws II, the ends of which are threadedly connected to the threaded holes on the U-shaped clamping frame and pass through the corresponding through holes on the side wall of the rectangular feed hopper.

[0009] In one possible design, a hollow rigid connector is fixedly provided at the other end of the suction hose, and the metal counterweight nozzle is threadedly connected to the corresponding external thread on the outer wall of the rigid connector through the internal thread on the inner wall.

[0010] In one possible design, the flared end at the bottom of the metal counterweight nozzle is provided with multiple suction notches in a ring array.

[0011] In one possible design, support legs are welded and fixed to the four corners of the bottom of the screw press body, and corresponding reinforcing plates are welded and fixed to the bottom of the support legs. Two reinforcing holes are symmetrically arranged on the reinforcing plates, and hexagonal bolts I for connecting to the ground are inserted through the reinforcing holes.

[0012] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit the present invention.

[0013] The working principle and usage process of this technical solution are as follows: During use, first, secure the entire device to the ground using the reinforcing plates on the bottom support legs of the screw press body and hex bolts I to prevent violent shaking during operation. Then, attach the U-shaped clamping bracket at the bottom of the U-shaped mounting frame to the top of the rectangular feed hopper, and reinforce the U-shaped mounting frame and feed hopper using hex bolts II through the threaded holes and through holes to ensure stable operation of the pump. Next, insert the metal counterweight nozzle into the collection bin containing the crushed solid-liquid mixture of kitchen waste, using the weight of the metal counterweight nozzle to prevent it from spilling into the pipe. The nozzle floats upwards, ensuring that the nozzle is always submerged in the mixture. After starting the pump, the pump generates negative pressure suction through the suction hose. Because the flared end at the bottom of the metal counterweight nozzle has multiple suction notches, the suction range can be expanded, allowing the solid-liquid mixture in the collection bucket to enter the suction hose through the suction notches. The mixture is then transported to the output end of the pump through the suction hose, and then directly transported to the feed inlet of the screw press body through the conveying pipe for feeding. There is no need for manual dumping or secondary feeding to intermediate equipment (such as auger feeders). The solid-liquid mixture of kitchen waste entering the screw press is transported to the pressing chamber by the propulsion of the screw shaft. During the process, the water and oil in the mixture will flow out through the filter screen built into the press, realizing solid-liquid separation (the liquid can be further processed in the subsequent oil separator). At the same time, the screw shaft pitch gradually decreases, squeezing the solid residue and further reducing the solid moisture content, thus completing the core function of screening and filtration. After the mixture in the collection bucket is sucked out, it can be put into the collection bucket for further feeding. This utility model has the following beneficial effects: This invention utilizes a suction structure consisting of a material pump, a suction hose, and a metal counterweight nozzle to extract mixtures from the collection bucket and transport them to the feed hopper. This eliminates the need for manual handling and emptying, making it convenient to use. Furthermore, it avoids the blockage of the pressing chamber caused by excessive material being added at once during manual emptying, thus ensuring the screw press operates stably.

[0014] This invention addresses the issue that traditional screw presses only have pressing and screening functions and require external feeding equipment (such as augers) to achieve automation. This device integrates suction feeding and screw pressing and screening into one unit, eliminating the need for additional feeding equipment, reducing the overall footprint of the equipment, and making it particularly suitable for small and medium-sized processing scenarios with limited space, thus enhancing the overall value of the equipment. In this utility model, the U-shaped mounting bracket is detachably connected to the rectangular feed hopper via a U-shaped clamping frame and hexagonal bolts II, which not only ensures the stability of the pump operation but also facilitates subsequent maintenance or replacement of the pump and the U-shaped mounting bracket. In this invention, the metal counterweight nozzle avoids the problem of air suction caused by the hose opening floating during the suction process, ensuring continuous and stable feeding. Furthermore, the suction hose and the metal counterweight nozzle are detachably connected by threads, and the metal counterweight nozzle can be replaced separately when it is worn or the suction gap is blocked. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of a kitchen waste screening and filtering device provided in an embodiment of the present utility model; Figure 2 Another structural schematic diagram of a kitchen waste screening and filtration device provided in an embodiment of this utility model; Figure 3 A schematic diagram of the U-shaped mounting frame and rectangular feed hopper separation structure of a kitchen waste screening and filtering device provided in this embodiment of the present invention; Figure 4 This is a schematic diagram of the separation structure of the metal counterweight nozzle and the suction hose of a kitchen waste screening and filtering device provided in this embodiment of the present invention.

[0016] Reference numerals: 1. Screw press body; 2. Support leg; 3. Reinforcing plate; 4. Reinforcing hole; 5. Socket head bolt I; 6. Rectangular feed hopper; 7. U-shaped mounting bracket; 8. U-shaped clamping bracket; 9. Threaded hole; 10. Socket head bolt II; 11. Through hole; 12. Suction pump; 13. Conveying pipe; 14. Suction hose; 15. Rigid connector; 16. Metal counterweight nozzle; 17. External thread; 18. Internal thread; 19. Suction notch. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0018] In the description of this utility model, it should be understood that the terms "opening", "upper", "middle", "length", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0019] To keep the following description of the embodiments of this utility model clear and concise, detailed descriptions of known functions and known components are omitted.

[0020] In one embodiment: Please refer to Figure 1-4 A screening and filtering device, comprising: The screw press body 1 has a rectangular feed hopper 6 welded and fixed at the feed inlet at the top. Inside the screw press body 1, there is a screw shaft and a pressing chamber with a filter screen. When the crushed solid-liquid mixture of kitchen waste enters the body from the rectangular feed hopper 6, the screw shaft rotates under the drive mechanism. The pitch of the screw shaft gradually decreases from the feed end to the discharge end, and the inner diameter of the pressing chamber gradually shrinks accordingly. The mixture is pushed towards the discharge end as the screw shaft rotates. During the process, the decrease in pitch and the shrinkage of the chamber diameter generate continuous extrusion pressure. Under the action of extrusion pressure, the water and oil in the mixture seep out through the filter screen of the pressing chamber, realizing solid-liquid separation. The solid residue is compressed and dehydrated under the action of extrusion pressure and is finally discharged from the discharge end.

[0021] A U-shaped mounting bracket 7 is installed on the top of the rectangular feed hopper 6. U-shaped clamping brackets 8 are welded and fixed at both ends of the bottom of the U-shaped mounting bracket 7. During installation, the two U-shaped clamping brackets 8 are correspondingly snapped onto the top two sides of the rectangular feed hopper 6. The U-shaped clamping brackets 8 have pre-set threaded holes 9. Through holes 11 are opened on the side wall of the rectangular feed hopper 6 at the positions corresponding to the threaded holes 9. Two internal hex bolts II 10 are taken, and their ends are screwed into the threaded holes 9 and through the through holes 11 to complete the reinforcement of the U-shaped mounting bracket 7 and the rectangular feed hopper 6, ensuring that the subsequent operation of the pump 12 will not result in displacement or shaking.

[0022] The top of the U-shaped mounting bracket 7 is fixed with bolts to the suction pump 12. The input end of the suction pump 12 is connected to the suction hose 14 through a clamp. The end of the suction hose 14 away from the suction pump 12 is fixed with a hollow rigid connector 15 by heat fusion. The inner wall of the metal counterweight nozzle 16 is provided with an internal thread 18, and the outer wall of the rigid connector 15 is provided with an external thread 17 that matches the internal thread 18. The metal counterweight nozzle 16 is screwed onto the rigid connector 15 through the cooperation of the internal thread 18 and the external thread 17 to complete the assembly of the suction assembly. The bottom of the metal counterweight nozzle 16 is a flared structure, and the flared end has multiple suction notches 19 in a ring array. This structure can expand the suction range. The output end of the suction pump 12 is connected to the conveying pipe 13 through a clamp. The end of the conveying pipe 13 away from the suction pump 12 passes through the inner wall of the U-shaped mounting bracket 7 and extends into the rectangular feed hopper 6 to ensure that the material can be directly conveyed into the feed hopper. Considering the characteristics of kitchen waste solid-liquid mixtures containing solid particles and with high viscosity, a self-priming centrifugal pump is selected for pumping pump 12. This type of pump has self-priming capability and can start pumping without pre-filling the pump with liquid. It is suitable for scenarios where the device draws mixtures from the collection bin. At the same time, the self-priming centrifugal pump has a wide flow channel design, which can adapt to mixtures containing fine solid particles, avoiding particle blockage of the pump body. Its output pressure is stable, which can ensure that the mixture is continuously transported along the conveying pipe 13 to the rectangular feed hopper 6, meeting the continuous feeding requirements of the device. After the pumping pump 12 starts, its internal impeller rotates at high speed. During the process, the air in the pump chamber is quickly discharged, creating a negative pressure state in the pump chamber. Since the pump chamber is connected to the suction hose 14, the air pressure in the suction hose 14 decreases accordingly, while the collection bucket containing the solid-liquid mixture is at atmospheric pressure. Under the action of the air pressure difference, the mixture in the collection bucket is forced into the metal counterweight nozzle 16 of the suction hose 14, and then enters the pump chamber of the pumping pump 12 along the suction hose 14. The mixture entering the pump chamber gains kinetic energy as the impeller rotates and is pushed to the output end of the pumping pump 12. Finally, it is transported to the rectangular feed hopper 6 through the conveying pipe 13, realizing the suction and feeding of the solid-liquid mixture.

[0023] When the device is put into use, the metal counterweight nozzle 16 is inserted into the collection bucket containing the solid-liquid mixture of crushed kitchen waste. The weight of the metal counterweight nozzle 16 itself prevents the nozzle from floating during the suction process, ensuring that the nozzle is always submerged in the solid-liquid mixture. After the suction pump 12 is started, the suction pump 12 generates negative pressure suction through the suction hose 14. The solid-liquid mixture in the collection bucket enters the suction hose 14 through the suction notch 19 at the bottom of the metal counterweight nozzle 16. It is then transported to the output end of the suction pump 12 through the suction hose 14, and then transported to the rectangular feed hopper 6 through the conveying pipe 13. Finally, it flows into the feed inlet of the screw press body 1, realizing feeding. There is no need for manual handling of materials to the feed inlet for dumping, nor is there a need for secondary feeding with intermediate equipment such as auger feeders. After the solid-liquid mixture enters the screw press body 1, it is conveyed to the pressing chamber by the propulsion of the screw shaft. As the screw shaft advances, the pitch of the screw shaft gradually decreases, squeezing the solid residue in the solid-liquid mixture. During the process, the water and oil in the mixture flow out through the filter screen built into the press, achieving solid-liquid separation. The outflowing liquid can be collected and sent to an oil separator for further oil removal. The moisture content of the squeezed solid residue is greatly reduced, completing the screening and filtration treatment of kitchen waste. When the solid-liquid mixture in one collection bucket is completely sucked out, the pump is turned off. 12. Remove the metal counterweight nozzle 16 from the empty collection bucket and fill it into the collection bucket containing the new crushed solid-liquid mixture of kitchen waste. Restart the pump 12 to continue the feeding operation. If the metal counterweight nozzle 16 is worn after long-term use, or if the suction notch 19 is blocked by impurities and affects the suction efficiency, the metal counterweight nozzle 16 can be unscrewed and replaced with a new one. If maintenance is required on the pump 12 or the U-shaped mounting bracket 7, the hex bolt II 10 can be removed to separate the U-shaped mounting bracket 7 from the rectangular feed hopper 6. After maintenance, reassemble according to the original steps.

[0024] This application can be used for screening and filtering kitchen waste, or it can be used in other fields applicable to this application.

[0025] In another embodiment: A food waste screening and filtration device, which is used in the field of food waste treatment; Please refer to Figure 2 The bottom of the screw press body 1 is welded and fixed with support legs 2 at the four corners. Each support leg 2 is welded and fixed with a reinforcing plate 3 at the bottom. Two reinforcing holes 4 are symmetrically opened on the reinforcing plate 3. The operator can pass the hexagonal bolt I5 through the reinforcing hole 4 and connect it with the pre-drilled thread groove in the ground, thereby connecting and fixing the entire device to the ground, avoiding violent shaking during the operation of the device, and laying the foundation for stable operation.

[0026] However, as is well known to those skilled in the art, the working principle and wiring method of the screw press body 1 and the feed pump 12 are conventional means or common knowledge, and will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0027] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0028] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. In the absence of conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A kitchen waste screening and filtering device, characterized in that, include: The screw press body (1) has a rectangular feed hopper (6) welded and fixed at the feed inlet at the top of the screw press body (1). A U-shaped mounting frame (7) is detachably installed on the top of the rectangular feed hopper (6). A suction pump (12) is fixedly installed on the top of the U-shaped mounting frame (7). A suction hose (14) is connected to the input end of the suction pump (12). A metal counterweight nozzle (16) is detachably installed at the other end of the suction hose (14) to prevent its opening from floating. The metal counterweight nozzle (16) is inserted into a collection bucket for holding the solid-liquid mixture of crushed kitchen waste. A conveying pipe (13) is connected to the output end of the suction pump (12). The other end of the conveying pipe (13) passes through the inner wall of the U-shaped mounting frame (7) and extends into the rectangular feed hopper (6).

2. The kitchen waste screening and filtering device according to claim 1, characterized in that, Both ends of the bottom of the U-shaped mounting bracket (7) are welded and fixed with U-shaped clamping brackets (8) for clamping the top of the rectangular feed hopper (6).

3. The kitchen waste screening and filtering device according to claim 2, characterized in that, The U-shaped clamp (8) and the rectangular feed hopper (6) are reinforced by two hexagonal bolts II (10). The ends of the hexagonal bolts II (10) are threaded to the threaded holes (9) on the U-shaped clamp (8) and pass through the corresponding through holes (11) on the side wall of the rectangular feed hopper (6).

4. The kitchen waste screening and filtering device according to claim 1, characterized in that, The other end of the suction hose (14) is fixedly provided with a hollow rigid connector (15), and the metal counterweight nozzle (16) is threadedly connected to the corresponding external thread (17) on the outer wall of the rigid connector (15) through the internal thread (18) on the inner wall.

5. The kitchen waste screening and filtering device according to claim 4, characterized in that, The flared end of the metal counterweight nozzle (16) at the bottom is provided with multiple suction notches (19) in a ring array.

6. The kitchen waste screening and filtering device according to claim 1, characterized in that, Support legs (2) are welded and fixed at the four corners of the bottom of the screw press body (1). A corresponding reinforcing plate (3) is welded and fixed at the bottom of the support leg (2). Two reinforcing holes (4) are symmetrically arranged on the reinforcing plate (3). An internal hex bolt I (5) for connecting to the ground is installed through the reinforcing hole (4).

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