Domestic sewage solid impurity filtering device

Abstract

The utility model provides a domestic sewage solid impurity filtering device and relates to the field of water purification. The domestic sewage solid impurity filtering device comprises an input end and a filtering device used for filtering sewage, the input end is connected with the filtering device, a filtering bin is arranged below the filtering device, the bottom of the filtering bin is communicated with a secondary filtering device, the secondary filtering device is connected with a liquid output pipe, and the liquid output pipe is connected with the input end. The bottom end of the liquid output pipe is connected with a first electromagnetic valve, and the output end of the first electromagnetic valve is communicated with the output pipe. According to the domestic sewage solid impurity filtering device, large-particle solid dirt is filtered by the filtering hopper and stays on the inner wall of the filtering hopper and in the communicating pipe, the solid dirt staying on the inner wall of the filtering hopper and in the communicating pipe can be discharged upwards through rotation of the spiral auger, secondary crushing of the solid dirt by the crushing cutter is facilitated, and the solid impurity filtering effect is improved. And solid impurities are effectively refined, and blockage of the solid impurities to a filtering system is reduced.

Description

Technical Field

[0001] The utility model relates to the field of water purification, in particular to a domestic sewage solid impurity filtering device. Background Art

[0002] The main methods for filtering solid impurities from domestic sewage include filtration. Filtration involves intercepting suspended solids in sewage through a filter medium. Commonly used filtration equipment includes grids, screens, emery cloth, and microporous tubes. These devices can effectively remove solid impurities from sewage.

[0003] Solid impurities containing larger particles are prone to clogging the filter when passing through the filter, and the filter needs to be cleaned regularly, which is labor-intensive and time-consuming. Utility Model Content

[0004] (1) Technical problems solved

[0005] In response to the shortcomings of the existing technology, the utility model provides a domestic sewage solid impurity filter device, which solves the problem that solid impurities containing larger particles are prone to clogging the filter device when passing through the filter device, and the filter device needs to be cleaned regularly, which is labor-intensive and time-consuming.

[0006] (2) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a domestic sewage solid impurity filtering device, comprising an input end and a filtering device for filtering sewage, the input end being connected to the filtering device, a filtering bin being provided below the filtering device, the bottom of the filtering bin being connected to a secondary filtering device, the secondary filtering device being connected to a liquid output pipe, the bottom end of the liquid output pipe being connected to a solenoid valve 1, the output end of the solenoid valve 1 being connected to an output pipe, and a crushing motor being provided at the bottom of the solenoid valve 1.

[0008] The filtering device includes a crushing bin, a crushing knife, a bottom plate, a filter bucket, a connecting pipe, a bottom plate 2, a circulation port, a transmission rod and a spiral auger. The crushing bin is connected to the input end, a crushing knife is provided inside the crushing bin, the bottom of the crushing knife is fixed to the transmission rod, the bottom of the crushing bin is fixed to the bottom plate 1, a filter port is provided on the top of the bottom plate 1, the bottom of the bottom plate 1 is located below the filter port and is fixed to the filter bucket, the bottom of the filter bucket is connected to the connecting pipe, a spiral auger is provided inside the connecting pipe, the connecting pipe is located inside the filter bin, the bottom of the filter bin is fixed to the bottom plate 2, the circulation port is opened at the top of the bottom plate 2, the transmission rod is fixed to the spiral auger, and the output end of the crushing motor is fixed to the transmission rod.

[0009] Preferably, the secondary filtration device includes a conical filter element, filter holes, a third bottom plate, a solid passage gap, a separation chamber, a solid discharge pipe and a second solenoid valve. The separation chamber is arranged below the second bottom plate, and the bottom of the separation chamber is fixed to the third bottom plate. A conical filter element is provided inside the separation chamber, and filter holes are provided on the circumference of the surface of the conical filter element. The bottom of the conical filter element is connected to the liquid output pipe, and a solid passage gap is formed between the conical filter element and the separation chamber. The bottom of the third bottom plate is connected to the solid discharge pipe, and the bottom of the solid discharge pipe is connected to the second solenoid valve.

[0010] Preferably, the blades of the crushing knife are arranged in a circumferential shape on the surface of the knife seat.

[0011] Preferably, the spiral auger is in a spiral shape, and the spiral auger and the crushing knife rotate synchronously through a transmission rod.

[0012] Preferably, the conical filter element is in the shape of a truncated cone, and filter holes are provided on the inclined surface of the conical filter element.

[0013] Preferably, the interior of the conical filter element is a cavity, and the bottom of the conical filter element is a closed surface.

[0014] (3) Beneficial effects

[0015] The utility model provides a device for filtering solid impurities in domestic sewage. It has the following beneficial effects:

[0016] 1. In the domestic sewage solid impurity filtering device, larger particles of solid impurities will be filtered through the filter bucket and stay in the inner wall of the filter bucket and the connecting pipe. The rotation of the spiral auger can discharge the solid impurities staying on the inner wall of the filter bucket and the connecting pipe upward, making it convenient for the crushing knife to perform secondary crushing of the solid impurities, effectively refining the solid impurities and reducing the blockage of the filtration system caused by solid impurities.

[0017] 2. The domestic sewage solid impurity filtering device, sewage containing solid matter is controlled by solenoid valve 2 to be discharged through the solid sewage gap and the solid discharge pipe. Solenoid valve 2 can be controlled by the controller to perform self-draining operation at a fixed time, so as to realize regular cleaning of the filter components and effectively reduce the clogging of the filter components. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the filter device of the utility model;

[0020] Figure 3 This is a partial schematic diagram of the structure of the filter device of the utility model;

[0021] Figure 4 This is a schematic structural diagram of the filtering device and secondary filtering device of the utility model.

[0022] Among them, 1. Input end; 2. Filter device; 201. Crushing chamber; 202. Crushing knife; 203. Bottom plate 1; 204. Filter bucket; 205. Connecting pipe; 206. Bottom plate 2; 207. Flow port; 208. Drive rod; 209. Screw auger; 3. Filter chamber; 4. Secondary filtration device; 401. Conical filter element; 402. Filter hole; 403. Bottom plate 3; 404. Solids passing gap; 405. Separation chamber; 406. Solids discharge pipe; 407. Solenoid valve 2; 5. Liquid output pipe; 6. Solenoid valve 1; 7. Crushing motor; 8. Output pipe. DETAILED DESCRIPTION

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] The present invention provides a device for filtering solid impurities in domestic sewage. Figure 1-4 As shown, it includes an input end 1 and a filter device 2 for filtering sewage. The input end 1 is connected to a pressurized sewage pipe. The filter device 2 has the function of crushing and filtering solid impurities. The input end 1 is connected to the filter device 2. A filter bin 3 is provided below the filter device 2. The filter bin 3 is used to place the filter element in the filter device 2 to filter solid impurities. The bottom of the filter bin 3 is connected to a secondary filter device 4. The secondary filter device 4 filters the solid matter again and effectively separates and discharges the separated solid matter. The secondary filter device 4 is connected to a liquid output pipe 5.

[0025] like Figure 1 As shown, the bottom end of the liquid output pipe 5 is connected to the electromagnetic valve 6, and the output end of the electromagnetic valve 6 is connected to the output pipe 8. The liquid output pipe 5 can control the sewage filtered by the secondary filter device 4 through the electromagnetic valve 6 and discharge it through the output pipe 8. The bottom of the electromagnetic valve 6 of the liquid output pipe 5 is provided with a crushing motor 7. The rotation of the crushing motor 7 can drive the crushing device in the filter device 2 to crush the solid matter.

[0026] like Figure 1-3As shown, the filtering device 2 includes a crushing bin 201, a crushing knife 202, a bottom plate 1 203, a filter bucket 204, a connecting pipe 205, a bottom plate 206, a flow port 207, a transmission rod 208 and a spiral auger 209. The crushing bin 201 is connected to the input end 1. A crushing knife 202 is provided inside the crushing bin 201. The blade of the crushing knife 202 is arranged on the surface of the knife seat in a circular shape. The rotation of the crushing knife 202 can crush the dirt containing solid matter in the crushing bin 201. The bottom of the crushing knife 202 is fixed to the transmission rod 208, the bottom of the crushing bin 201 is fixed to the bottom plate 1 203, the top of the bottom plate 1 203 is provided with a filter port, the bottom of the bottom plate 1 203 is located below the filter port and is fixed to the filter bucket 204, the filter bucket 204 preliminarily filters the sewage, and the bottom of the filter bucket 204 It is connected to the connecting pipe 205, and a spiral auger 209 is provided inside the connecting pipe 205. Larger particles of solid dirt are filtered through the filter bucket 204 and stay on the inner wall of the filter bucket 204 and the connecting pipe 205. The rotation of the spiral auger 209 can discharge the solid dirt staying on the inner wall of the filter bucket 204 and the connecting pipe 205 upward, making it convenient for the crushing knife 202 to perform secondary crushing of the solid dirt. The connecting pipe 205 is located inside the filter bin 3, and the bottom of the filter bin 3 is fixed to the bottom plate 206. The flow port 207 is opened at the top of the bottom plate 206. The flow port 207 is a sewage passage port. The transmission rod 208 is fixed to the spiral auger 209, and the output end of the crushing motor 7 is fixed to the transmission rod 208. The rotation of the crushing motor 7 can drive the spiral auger 209 and the crushing knife 202 to rotate.

[0027] like Figure 4As shown, the secondary filter device 4 includes a conical filter element 401, a filter hole 402, a bottom plate 3 403, a solid passage gap 404, a separation chamber 405, a solid discharge pipe 406 and a second solenoid valve 407. The separation chamber 405 is arranged below the second bottom plate 206. The bottom of the separation chamber 405 is fixed to the bottom plate 3 403. The interior of the separation chamber 405 is provided with a conical filter element 401. The filter hole 402 is opened on the circumference of the surface of the conical filter element 401. The shape of the conical filter element 401 is a truncated cone. The filter hole 402 is opened on the inclined surface of the conical filter element 401. The interior of the conical filter element 401 is a cavity. The bottom of the conical filter element 401 is a closed surface. 401 can filter the sewage again. The bottom of the conical filter element 401 is connected to the liquid output pipe 5. The filtered sewage is discharged through the liquid output pipe 5. A solid passing gap 404 is formed between the conical filter element 401 and the separation chamber 405. The solid passing gap 404 is a solid dirt discharge channel. The sewage containing solid matter is controlled by the solenoid valve 2 407 to be discharged through the solid passing gap 404 and the solid discharge pipe 406. The solenoid valve 2 407 can be controlled by the controller to perform self-draining operation at a certain time, which effectively reduces the blockage of the filter element. The bottom of the bottom plate 3 403 is connected to the solid discharge pipe 406, and the bottom of the solid discharge pipe 406 is connected to the solenoid valve 2 407.

[0028] The spiral auger 209 is spiral in shape, and the spiral auger 209 and the crushing knife 202 rotate synchronously through the transmission rod 208 .

[0029] Working principle: When in use, sewage flows into the crushing bin 201 through the input end 1, and the sewage in the filter device 2 can be circulated and crushed by the crushing knife 202 and the spiral auger 209, and is initially filtered through the filter bucket 204. The filtered sewage flows into the separation bin 405, and the conical filter element 401 and the filter hole 402 in the secondary filter device 4 can filter the sewage again. The filtered sewage is discharged through the solenoid valve 16. The solid matter remaining outside the conical filter element 401 can be discharged together with the water by closing the solenoid valve 16 and opening the solenoid valve 2 407, and the filtered impurities are cleaned.

[0030] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A domestic sewage solid impurity filtering device, comprising an input end (1) and a filtering device (2) for filtering sewage, characterized in that: The input end (1) is connected to the filter device (2), a filter chamber (3) is provided below the filter device (2), the bottom of the filter chamber (3) is connected to the secondary filter device (4), the secondary filter device (4) is connected to the liquid output pipe (5), the bottom end of the liquid output pipe (5) is connected to the electromagnetic valve (6), the output end of the electromagnetic valve (6) is connected to the output pipe (8), and a crushing motor (7) is provided at the bottom of the electromagnetic valve (6); The filtering device (2) comprises a crushing chamber (201), a crushing knife (202), a bottom plate (203), a filter bucket (204), a connecting pipe (205), a bottom plate (206), a flow port (207), a transmission rod (208) and a spiral auger (209); the crushing chamber (201) is connected to the input end (1); a crushing knife (202) is provided inside the crushing chamber (201); the bottom of the crushing knife (202) is fixed to the transmission rod (208); the bottom of the crushing chamber (201) is fixed to the bottom plate (203); the top of the bottom plate (203) is provided with a The filter port is provided, the bottom of the bottom plate 1 (203) is located below the filter port and is fixed to the filter bucket (204), the bottom of the filter bucket (204) is connected to the connecting pipe (205), a spiral auger (209) is provided inside the connecting pipe (205), the connecting pipe (205) is located inside the filter bin (3), the bottom of the filter bin (3) is fixed to the bottom plate 2 (206), the flow port (207) is opened at the top of the bottom plate 2 (206), the transmission rod (208) is fixed to the spiral auger (209), and the output end of the crushing motor (7) is fixed to the transmission rod (208).

2. The domestic sewage solid impurity filtering device according to claim 1, characterized in that: The secondary filter device (4) comprises a conical filter element (401), a filter hole (402), a bottom plate (403), a solids passage gap (404), a separation chamber (405), a solids discharge pipe (406) and a second solenoid valve (407). The separation chamber (405) is arranged below the second bottom plate (206). The bottom of the separation chamber (405) is fixed to the third bottom plate (403). The interior of the separation chamber (405) is provided with a conical filter element. (401), a filter hole (402) is provided on the circumference of the surface of the conical filter element (401), the bottom of the conical filter element (401) is connected to the liquid output pipe (5), a solid passing gap (404) is formed between the conical filter element (401) and the separation chamber (405), the bottom of the bottom plate three (403) is connected to the solid discharge pipe (406), and the bottom of the solid discharge pipe (406) is connected to the solenoid valve two (407).

3. The domestic sewage solid impurity filtering device according to claim 1, characterized in that: The blade of the crushing knife (202) is arranged in a circular shape on the surface of the knife seat.

4. The domestic sewage solid impurity filtering device according to claim 1, characterized in that: The spiral auger (209) is in a spiral shape, and the spiral auger (209) and the crushing knife (202) rotate synchronously through the transmission rod (208).

5. The domestic sewage solid impurity filtering device according to claim 2, characterized in that: The conical filter element (401) is in the shape of a truncated cone, and a filter hole (402) is provided on the inclined surface of the conical filter element (401).

6. The domestic sewage solid impurity filtering device according to claim 2, characterized in that: The interior of the conical filter element (401) is a cavity, and the bottom of the conical filter element (401) is a closed surface.

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