Anti-clogging device for filter holes in waste dewatering equipment

Abstract

This utility model discloses an anti-clogging device for the filter holes of a waste dewatering equipment, belonging to the technical field of waste treatment equipment. It includes an outer bucket, an inner bucket, a separating mesh bucket, and a filter screen. The inner bucket is elastically connected to the outer bucket via a telescopic sealing ring at the upper end of its outer wall. The separating mesh bucket is axially positioned by a collar on its upper outer wall engaging with a gasket on the upper end of the inner bucket's inner wall. The bottom of the separating mesh bucket is supported by a support frame fixed to the bottom of the outer bucket. The detachable filter screen is placed inside the bucket supported by a suspended frame at the lower end of the separating mesh bucket. A pull rod is provided at the top of the filter screen. A support block and a drive pump at the top of the support block are also fixed to the bottom of the outer bucket. The drive pump is connected to the water outlet hole on the outer bucket wall via a water pipe. This utility model, through the combination of the above-mentioned multi-stage detachable filtration and active forced drainage structure, effectively solves the problems of rapid filter clogging and difficult cleaning and maintenance in existing technologies.

Description

Technical Field

[0001] This utility model relates to the field of waste treatment equipment technology, and in particular to a device for preventing clogging of the filter holes in waste dewatering equipment. Background Technology

[0002] In the catering industry, food processing plants, and garbage transfer stations, garbage dewatering equipment is widely used as a key pretreatment tool. Its main function is to remove most of the water from wet garbage through mechanical extrusion and other methods to achieve volume reduction and facilitate subsequent processing. During the garbage dewatering process, a large amount of mixed wastewater containing solid residue, grease, and fine suspended matter is generated. In order to prevent solid residue from entering and clogging the subsequent sewage pipes, existing garbage dewatering equipment usually has a simple filtration structure at the drain outlet, such as a fixed filter screen or a perforated plate.

[0003] However, this single filtration method has revealed significant shortcomings in practical use. On the one hand, when dealing with complex types of waste, a large amount of fine particles and viscous grease will quickly adhere to the surface of the filter screen and clog the pores, causing the effective area of ​​the drainage channel to decrease sharply and the drainage flow rate to become extremely slow. In severe cases, it may even completely block the filter screen, causing sewage backflow and affecting the normal operation of the equipment. On the other hand, once a blockage occurs, frequent shutdowns for manual cleaning are required, which not only increases the workload of operators and reduces the overall efficiency of waste treatment, but the cleaning process itself is also not hygienic and makes it difficult to thoroughly remove the deep dirt from the filter screen. Over time, this will still affect the drainage effect.

[0004] Therefore, this utility model proposes an anti-clogging device for the filter holes of a waste dewatering equipment to address the shortcomings of the prior art. Utility Model Content

[0005] In view of the problems in the existing technology of anti-clogging devices for filter holes in waste dewatering equipment, such as the filter screen being easily clogged by dirt, resulting in low drainage efficiency and cumbersome and time-consuming cleaning and maintenance, this utility model aims to provide an anti-clogging device for filter holes in waste dewatering equipment with an improved structure that can effectively solve the above problems.

[0006] This utility model provides a device for preventing clogging of the filter holes in a waste dewatering equipment, including: an outer bucket, an inner bucket, an isolation mesh bucket and a filter screen; as well as a telescopic sealing ring, a support frame, a collar, a gasket, a suspension frame, a tie rod, a support block and a drive pump.

[0007] The inner barrel is nested inside the outer barrel, the isolation mesh barrel is detachably installed inside the inner barrel, and the filter screen is detachably installed inside the isolation mesh barrel, thus forming a multi-stage separable filtration system.

[0008] Furthermore, the upper end of the inner wall of the outer barrel and the upper end of the outer wall of the inner barrel are elastically sealed together by a telescopic sealing ring. The bottom of the outer barrel is provided with a support frame for supporting the isolation net barrel. The upper end of the isolation net barrel is provided with a collar, and the upper end of the inner barrel is provided with a gasket that engages with the collar. The bottom of the outer barrel is also fixedly connected with a support block. The drive pump is fixed on the support block and is connected to the water outlet hole opened on the outer wall of the outer barrel through a water pipe, thus forming an active forced drainage structure.

[0009] Preferably, a disc is fixedly connected to the top of the outer barrel.

[0010] Preferably, a sleeve is installed at the upper end of the filter screen.

[0011] Preferably, the sleeve is an elastic ring, and the sleeve makes frictional contact with the inner wall of the isolation net barrel through an interference fit.

[0012] Preferably, the isolation net barrel has multiple through holes on its barrel wall.

[0013] Preferably, the lower end face of the collar engages with the upper end face of the washer.

[0014] Preferably, the lower end of the pull rod is fixedly connected to the top edge of the filter screen.

[0015] Preferably, one end of the water pipe is connected to the outlet of the drive pump, and the other end of the water pipe is inserted through and fixed to the water outlet.

[0016] This utility model has the following beneficial effects:

[0017] 1. This utility model, by setting a detachable isolation mesh barrel and a filter screen with a pull rod, forms a multi-stage separable filtration structure, which solves the problems of difficult cleaning and inconvenient maintenance of existing garbage dewatering equipment filters, and the easy decline in filtration efficiency due to untimely cleaning.

[0018] 2. This utility model solves the problem that existing technologies mostly use gravity natural drainage, which results in slow water flow and easy sedimentation of sludge and fine impurities near the drain outlet, ultimately causing pipe blockage, by setting a drive pump at the bottom of the outer barrel and connecting it with the water outlet to form a forced drainage channel. Attached Figure Description

[0019] Figure 1 This is a front perspective view of the anti-clogging device for the filter holes of the waste dewatering equipment proposed in this utility model;

[0020] Figure 2 This is a partial structural cross-sectional view of the outer bucket of the anti-clogging device for the filter holes of the waste dewatering equipment proposed in this utility model;

[0021] Figure 3This is a partial structural exploded view of the inner barrel of the anti-clogging device for the filter holes of the waste dewatering equipment proposed in this utility model;

[0022] Figure 4 This is a partial structural diagram of the isolation mesh bucket of the anti-clogging device for the filter holes of the waste dewatering equipment proposed in this utility model.

[0023] Legend:

[0024] 1. Outer tub; 2. Inner tub; 3. Isolation mesh tub; 4. Filter screen; 5. Disc; 6. Telescopic sealing ring; 7. Support frame; 8. Collar; 9. Washer ring; 10. Suspension frame; 11. Hoop; 12. Support block; 13. Drive pump; 14. Water outlet; 15. Water pipe; 16. Pull rod. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0026] like Figures 1 to 4 As shown, a waste dewatering equipment filter hole anti-clogging device includes an outer barrel 1 serving as an integral mounting base, and an inner barrel 2, an isolation mesh barrel 3, and a filter screen 4 nested sequentially inside the outer barrel 1, forming a multi-layer separable filtration structure. A disc 5 is fixedly connected to the top of the outer barrel 1, and the disc 5 is used to connect the entire waste dewatering equipment filter hole anti-clogging device to the main body of the waste dewatering equipment. The upper end of the inner wall of the outer barrel 1 and the upper end of the outer wall of the inner barrel 2 are fixedly connected by an annular telescopic sealing ring 6, thereby achieving an elastic seal. An upwardly extending support frame 7 is fixedly connected to the bottom inner wall of the outer barrel 1. The isolation mesh barrel 3 is detachably placed and its bottom is supported on the support frame 7. The upper outer wall of the isolation mesh barrel 3 is fixedly connected to... A collar 8 is attached to the inner barrel 2, and a washer 9 that cooperates with the collar 8 is fixedly connected to the upper end of the inner wall. The axial positioning of the isolation net barrel 3 in the inner barrel 2 is achieved by the engagement contact between the collar 8 and the washer 9. A suspension frame 10 is also fixedly connected to the lower end of the isolation net barrel 3. The filter screen 4 is detachably placed on the suspension frame 10. A collar 11 is installed on the outer periphery of the upper end of the filter screen 4. The collar 11 is an elastic ring. A pull rod 16 is fixedly connected to the top of the filter screen 4 for lifting and removing the filter screen 4. A support block 12 for supporting the drive pump 13 is fixedly connected to the bottom of the outer barrel 1. The drive pump 13 is fixedly connected to the top of the support block 12. A water outlet 14 is opened on the outer wall of the outer barrel 1. The drive pump 13 is connected to the water outlet 14 through a water pipe 15 to form a forced drainage channel.

[0027] Please refer to Figure 2 , Figure 3 and Figure 4 The isolation net bucket 3 is a hollow barrel-shaped structure with multiple evenly spaced through holes on its walls for sewage to pass through. An outwardly protruding collar 8 is integrally formed on the upper outer wall of the isolation net bucket 3, while a mesh-like suspension frame 10 is integrally formed on the lower end. The filter 4 is a liftable basket-shaped structure. A clamp 11 is fixedly connected to the upper edge of the filter 4, and the lower end of a pull rod 16 is also fixedly connected to the top edge of the filter 4. In the assembled state, the isolation net bucket 3 is placed from top to bottom inside the cavity of the inner bucket 2 until isolation occurs. The bottom of the mesh bucket 3 is placed on top of the support frame 7. At the same time, the lower end face of the collar 8 of the isolation mesh bucket 3 engages with the upper end face of the pad ring 9 of the inner bucket 2, thereby providing double circumferential and axial restraint for the isolation mesh bucket 3. The filter screen 4 is placed inside the isolation mesh bucket 3. The bottom of the filter screen 4 is supported by the suspension frame 10. The collar 11 at the upper end of the filter screen 4 makes frictional contact with the inner wall of the isolation mesh bucket 3 through an interference fit, preventing the filter screen 4 from sliding or tipping over unexpectedly during use. This nested multi-stage filtration structure ensures that garbage and sewage can be effectively separated.

[0028] Meanwhile, a support block 12 is fixedly connected to the bottom inner wall of the outer barrel 1, and the drive pump 13 is firmly installed on the top of the support block 12. The outlet of the drive pump 13 is connected through one end of a water pipe 15, and the other end of the water pipe 15 is inserted and fixed to the water outlet 14 on the outer side wall of the outer barrel 1. This bottom-mounted pumping structure can immediately forcefully accelerate the discharge of sewage after it is filtered and collected at the bottom of the outer barrel 1, effectively preventing the sedimentation and accumulation of sludge and fine particles.

[0029] As a preferred embodiment, for easy and secure installation of the entire device on the waste dewatering equipment, please refer to... Figure 1 and Figure 4 The outer edge of the top of the outer barrel 1 is fixedly connected to a disc 5 by welding or integral molding. The disc 5 is a flat ring with an outer diameter larger than that of the outer barrel 1, thus forming an installation flange. The disc 5 can be fixed to the drain outlet of the waste dewatering equipment by bolts.

[0030] As a preferred embodiment, to further ensure the installation stability of the filter screen 4 within the isolation mesh barrel 3, please refer to... Figure 3A sleeve 11 is installed on the upper outer periphery of the filter screen 4. The sleeve 11 is preferably an elastic ring made of metal or polymer material with a certain elasticity. The outer diameter of the sleeve 11 is slightly larger than the inner diameter of the isolation net barrel 3 in its natural state. When the filter screen 4 is placed into the isolation net barrel 3, the sleeve 11 is compressed and sticks tightly to the inner wall of the isolation net barrel 3. The friction force generated by the interference fit reliably fixes the filter screen 4 at the preset height.

[0031] As a preferred embodiment, to clarify the engagement and positioning relationship between the isolation net bucket 3 and the inner bucket 2, please refer to... Figure 3 and Figure 4 The lower end face of the collar 8 is designed as a flat support surface, and the upper end face of the pad ring 9 is also a flat support surface. When the isolation net barrel 3 is completely inserted into the inner barrel 2, the lower end face of the collar 8 and the upper end face of the pad ring 9 engage and contact, thereby precisely defining the vertical installation position of the isolation net barrel 3.

[0032] As a preferred embodiment, to facilitate cleaning of filter screen 4 by the operator, please refer to... Figure 1 The lower end of the pull rod 16 is fixedly connected to the top edge of the filter screen 4 by welding or riveting, while the upper end of the pull rod 16 extends upward and can be set as a ring or T-shape, so that the user can easily grasp it by hand and lift it vertically upward, thereby easily removing the filter screen 4 filled with garbage from the device.

[0033] As a preferred embodiment, in order to ensure the sealing and reliability of the water passage between the drive pump 13 and the outlet hole 14, the water pipe 15 is preferably a corrosion-resistant flexible hose or rigid pipe. One end of the water pipe 15 is connected to the outlet of the drive pump 13 by means of a pipe clamp or threaded joint, and the other end of the water pipe 15 is inserted and fixed to the outlet hole 14. The connection can be sealed by means of sealing rubber rings or the like to ensure that sewage can be discharged quickly without leakage.

[0034] Working principle: When a mixture containing solid waste and sewage is discharged from the waste dewatering equipment and enters the top of this device, the mixture first falls into the innermost filter screen 4. Due to the fine mesh structure of the filter screen 4, most of the larger solid waste is directly intercepted inside the filter screen 4, while the liquid sewage, carrying some small suspended impurities, smoothly passes through the bottom and side walls of the filter screen 4 and flows into the gap between the filter screen 4 and the isolation mesh barrel 3. Subsequently, the sewage continues to flow further through multiple through holes opened on the wall of the isolation mesh barrel 3. Within the annular collection chamber formed by the inner wall of the outer barrel 1 and the outer wall of the isolation mesh barrel 3, the wastewater eventually collects at the bottom of the outer barrel 1 under external force. During this process, the device effectively filters and separates wastewater and sewage through the structure of the filter screen 4 and the isolation mesh barrel 3. At this point, the drive pump 13, fixedly installed on top of the support block 12, begins operation. The inlet of the drive pump 13 forcefully draws in the filtered sewage collected at the bottom of the outer barrel 1, and pressurizes the sewage through the high-speed rotation of the internal impeller, giving the sewage sufficient kinetic energy to flush out fine particles. Then, after pressurization... Wastewater is forcibly pumped into water pipe 15 and finally discharged at high speed through water outlet 14 set on the outer wall of outer tank 1. This active, forced drainage method, driven by pump 13, uses the kinetic energy of high-speed water flow to carry away and flush out potentially settled sludge, fine sand, and other small impurities. This fundamentally solves the problem of pipe siltation and blockage caused by slow flow rate in traditional gravity-based drainage. Throughout operation, the support frame 7 extending upwards from the bottom provides stable and reliable vertical support for the isolation net tank 3, while the tight engagement of the collar 8 and the gasket 9 ensures... The isolation mesh bucket 3 will not undergo axial or radial displacement when subjected to water flow impact, ensuring the stability of the filtration structure. When the garbage in the filter screen 4 accumulates to a certain amount, the operator can directly grasp the pull rod 16 and pull it upward to easily remove the filter screen 4 from the isolation mesh bucket 3 to empty the garbage. This operation is extremely convenient and achieves rapid garbage cleaning. For deep maintenance that requires regular maintenance, the entire isolation mesh bucket 3 can also be completely removed from the inner bucket 2 by hand to thoroughly rinse the through holes and the inner cavity of the outer bucket 1, thereby ensuring the long-term and efficient anti-clogging performance of the device.

Claims

1. A device for preventing clogging of filter holes in a waste dewatering equipment, comprising an outer barrel (1), an inner barrel (2), an isolation mesh barrel (3), and a filter screen (4), wherein the inner barrel (2) is disposed inside the outer barrel (1), the isolation mesh barrel (3) is detachably disposed inside the inner barrel (2), and the filter screen (4) is detachably disposed inside the isolation mesh barrel (3); characterized in that The upper end of the inner wall of the outer barrel (1) is fixedly connected to the upper end of the outer wall of the inner barrel (2) by a telescopic sealing ring (6). The bottom of the outer barrel (1) is fixedly connected to an upwardly extending support frame (7) to support the isolation net barrel (3). The upper outer wall of the isolation net barrel (3) is fixedly connected to a collar (8). The upper end of the inner wall of the inner barrel (2) is fixedly connected to a gasket (9) that engages with the collar (8). The lower end of the isolation net barrel (3) is fixedly connected to a suspension frame (10) to support the filter screen (4). The top of the filter screen (4) is connected to a pull rod (16). The bottom of the outer barrel (1) is also fixedly connected to a support block (12). The top of the support block (12) is fixedly connected to a drive pump (13). The drive pump (13) is connected to a water outlet (14) opened on the outer wall of the outer barrel (1) through a water pipe (15).

2. The anti-clogging device for the filter holes of the waste dewatering equipment according to claim 1, characterized in that, A disc (5) is fixedly connected to the top of the outer barrel (1).

3. The anti-clogging device for the filter holes of the waste dewatering equipment according to claim 1, characterized in that, The filter screen (4) is fitted with a sleeve (11) at its upper end.

4. The anti-clogging device for the filter holes of the waste dewatering equipment according to claim 3, characterized in that, The sleeve (11) is an elastic ring, and the sleeve (11) makes frictional contact with the inner wall of the isolation net barrel (3) through an interference fit.

5. The anti-clogging device for the filter holes of the waste dewatering equipment according to claim 1, characterized in that, The isolation net bucket (3) has multiple through holes on its barrel wall.

6. The anti-clogging device for the filter holes of the waste dewatering equipment according to claim 1, characterized in that, The lower end face of the collar (8) engages with the upper end face of the washer (9).

7. The anti-clogging device for the filter holes of the waste dewatering equipment according to claim 1, characterized in that, The lower end of the pull rod (16) is fixedly connected to the top edge of the filter screen (4).

8. The anti-clogging device for the filter holes of the waste dewatering equipment according to claim 1, characterized in that, One end of the water pipe (15) is connected to the outlet of the drive pump (13), and the other end of the water pipe (15) is inserted through and fixed to the water outlet (14).

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