Compact anti-blocking sewage filter

Abstract

The utility model relates to the technical field of sewage filters, and discloses a compact anti-blocking sewage filter which comprises a connecting pipe. According to the compact anti-blocking sewage filter, through the arrangement of the cleaning mechanism, when a filter screen in a connecting pipe is cleaned, an electric control valve is closed, and an electromagnetic valve is opened, so that the connecting pipe and a blow-off pipe at the bottom form a passage, and then a hydraulic rod at the top is started; the hydraulic rod stretches out and draws back to drive a plurality of brush heads on the brush plate at the tail end to conduct reciprocating sweeping on the surface of the filter screen, impurities attached to the surface of the filter screen are swept down and fall into the blow-off pipe at the bottom through gravity, and after sweeping is completed, the electromagnetic valve is closed, the electric control valve is opened, so that the water injection port and the water outlet form a channel. Therefore, the effect of cleaning under the condition that the filter screen is not detached is achieved, the problem that the filter screen is blocked is effectively solved, the equipment is small in size and not limited by sites, and the space occupancy rate is reduced.

Description

Technical Field

[0001] This utility model relates to the field of sewage filter technology, and in particular to a compact anti-clogging sewage filter. Background Technology

[0002] With the acceleration of global industrialization and urbanization, wastewater discharge is increasing daily, making wastewater treatment a crucial link in protecting the ecological environment and human health. Wastewater treatment systems encompass multiple stages, among which wastewater filtration, as a pretreatment step, plays a vital role. It is responsible for removing suspended solid particles and debris from wastewater, preventing these impurities from entering subsequent treatment equipment, avoiding equipment wear and clogging, ensuring the stable operation of the entire wastewater treatment process, and providing good influent water quality conditions for subsequent advanced treatment.

[0003] However, existing wastewater filters have many shortcomings. On the one hand, traditional filters are often bulky and occupy a large area, which is a serious constraint for wastewater treatment plants with limited land resources and space. For example, in some older wastewater treatment plants in cities, site limitations make it difficult to install large wastewater filtration equipment, affecting the improvement of wastewater treatment capacity. On the other hand, poor anti-clogging performance is a common problem with existing filters. Impurities in wastewater easily accumulate on the filter screen surface during the filtration process. Over time, the pores of the filter screen gradually become clogged, leading to a significant decrease in filtration efficiency, increased head loss, and the need for frequent cleaning or replacement of the filter screen, increasing operating costs and maintenance workload. Moreover, cleaning or replacing the filter screen often requires stopping the operation of the wastewater treatment system, affecting the continuity and stability of wastewater treatment. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] The purpose of this invention is to provide a compact, anti-clogging sewage filter to solve the problems of large size and frequent filter replacement mentioned in the background art.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a compact anti-clogging sewage filter, comprising a connecting pipe, a water inlet connected through the back of the connecting pipe, two connecting blocks fixedly connected to the inner wall of the water inlet, a buffer mechanism fixedly connected to the surface of the connecting blocks, a filter screen fixedly connected inside the connecting pipe, a cleaning mechanism slidably connected to the surface of the filter screen, the buffer mechanism comprising a fixed cylinder fixedly connected to the surface of the connecting blocks, a support spring fixedly connected inside the fixed cylinder, a telescopic rod fixedly connected to one side of the support spring, and a buffer plate fixedly connected to one side of the telescopic rod; the cleaning mechanism comprising a brush head slidably connected to the surface of the filter screen, a brush plate fixedly connected to one side of the brush head, and a hydraulic rod fixedly connected to the top of the brush plate.

[0008] As a further embodiment of this utility model, a water outlet is connected through the right side of the connecting pipe, and a flange connector is installed on the surface of the water outlet. The flange connector serves to connect the water outlet.

[0009] As a further embodiment of this utility model, a sewage pipe is connected through the bottom of the connecting pipe, and a flange is installed at the end of the sewage pipe. The flange serves to connect the sewage pipe.

[0010] As a further embodiment of this utility model, a solenoid valve is installed on the surface of the sewage pipe, and a PLC controller is electrically connected to one side of the solenoid valve via a power line. The PLC controller controls the opening and closing of the solenoid valve and the electrically controlled valve.

[0011] As a further embodiment of this utility model, a pressure gauge is installed on the surface of the water inlet, and one side of the pressure gauge is electrically connected to one side of the PLC controller via a power cord. The pressure gauge serves to detect pressure.

[0012] As a further embodiment of this utility model, an electrically controlled valve is electrically connected to one side of the PLC controller via a power line. The electrically controlled valve is installed near the water inlet and controls the water flow rate.

[0013] As a further embodiment of this utility model, a through hole is provided on the surface of the connecting pipe, and the hydraulic rod is installed on the surface of the through hole. The hydraulic rod drives the brush plate to reciprocate.

[0014] (III) Beneficial Effects

[0015] This utility model provides a compact anti-clogging sewage filter, which has the following beneficial effects:

[0016] 1. This compact anti-clogging sewage filter, through its cleaning mechanism, cleans the filter screen inside the connecting pipe by closing the electric control valve and opening the solenoid valve, creating a passage between the connecting pipe and the bottom drain pipe. Then, the top hydraulic rod is activated, and its extension and retraction drive several brush heads on the end brush plate to reciprocate and clean the filter screen surface, removing impurities adhering to the filter screen. These impurities fall into the bottom drain pipe by gravity. After cleaning, the solenoid valve is closed and the electric control valve is opened, creating a passage between the water inlet and outlet. This achieves cleaning without disassembling the filter screen, effectively solving the problem of filter screen clogging. Furthermore, the equipment is small in size, not limited by site constraints, and reduces space occupancy.

[0017] 2. This compact anti-clogging sewage filter features a buffer mechanism. During use, a buffer plate and a support spring are installed at the water inlet. When the water pressure is too high, the buffer plate and support spring provide a counterforce to reduce the impact force generated by the excessive water pressure, further protecting the precision components inside the equipment. This achieves a buffering effect, preventing damage to the internal precision components caused by excessive water pressure and shortening the service life of the equipment. Attached Figure Description

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

[0019] Figure 2 This is a schematic diagram of the buffer mechanism structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the cleaning mechanism of this utility model;

[0021] Figure 4 This is a schematic diagram of the connecting pipe structure of this utility model.

[0022] In the diagram: 1. Connecting pipe; 2. Water inlet; 3. Connecting block; 4. Buffer mechanism; 401. Fixed cylinder; 402. Support spring; 403. Telescopic rod; 404. Buffer plate; 5. Filter screen; 6. Cleaning mechanism; 601. Brush head; 602. Brush plate; 603. Hydraulic rod; 7. Water outlet; 8. Flange connector; 9. Sewage pipe; 10. Flange; 11. PLC controller; 12. Pressure gauge; 13. Electric valve; 14. Solenoid valve. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0024] Please see Figures 1 to 4 This utility model provides a technical solution: a compact anti-clogging sewage filter, including a connecting pipe 1, with a water inlet 2 connected through the back of the connecting pipe 1. Two connecting blocks 3 are fixedly connected to the inner wall of the water inlet 2, and a buffer mechanism 4 is fixedly connected to the surface of the connecting blocks 3. The buffer mechanism 4 achieves a buffering effect, preventing excessive water pressure from damaging internal precision components and shortening the equipment's service life. A filter screen 5 is fixedly connected inside the connecting pipe 1, and a cleaning mechanism 6 is slidably connected to the surface of the filter screen 5. The cleaning mechanism 6 enables cleaning without disassembling the filter screen 5, effectively solving the problem of filter screen clogging. Furthermore, the equipment is small in size, not limited by site conditions, and reduces space occupancy.

[0025] The buffer mechanism 4 includes a fixed cylinder 401 fixedly connected to the surface of the connecting block 3. A support spring 402 is fixedly connected inside the fixed cylinder 401. A telescopic rod 403 is fixedly connected to one side of the support spring 402. A buffer plate 404 is fixedly connected to one side of the telescopic rod 403.

[0026] The cleaning mechanism 6 includes a brush head 601 that is slidably connected to the surface of the filter screen 5. A brush plate 602 is fixedly connected to one side of the brush head 601, and a hydraulic rod 603 is fixedly connected to the top of the brush plate 602.

[0027] A water outlet 7 is connected through the right side of the connecting pipe 1. A flange connector 8 is installed on the surface of the water outlet 7. The flange connector 8 serves to connect the water outlet 7.

[0028] The bottom of the connecting pipe 1 is connected to the drain pipe 9, and the end of the drain pipe 9 is equipped with a flange 10. The flange 10 serves to connect the drain pipe 9.

[0029] A solenoid valve 14 is installed on the surface of the sewage pipe 9. A PLC controller 11 is electrically connected to one side of the solenoid valve 14 via a power line. The PLC controller 11 controls the opening and closing of the solenoid valve 14 and the solenoid valve 13.

[0030] A pressure gauge 12 is installed on the surface of the water inlet 2. One side of the pressure gauge 12 is electrically connected to one side of the PLC controller 11 via a power cord. The pressure gauge 12 is used to detect pressure.

[0031] One side of the PLC controller 11 is electrically connected to an electric control valve 13 via a power cord. The electric control valve 13 is installed near the water inlet 2 and controls the water flow rate.

[0032] A through hole is provided on the surface of the connecting pipe 1, and the hydraulic rod 603 is installed on the surface of the through hole. The hydraulic rod 603 drives the brush plate 602 to reciprocate.

[0033] In this invention, the working steps of the device are as follows:

[0034] First step: When cleaning the filter screen 5 inside the connecting pipe 1, close the electric control valve 13 and open the solenoid valve 14 to make the connecting pipe 1 and the bottom drain pipe 9 form a passage. Then, start the top hydraulic rod 603. The hydraulic rod 603 extends and retracts, driving several brush heads 601 on the end brush plate 602 to reciprocate and clean the surface of the filter screen 5, cleaning the impurities attached to the surface of the filter screen 5. The impurities fall into the bottom drain pipe 9 by gravity. After cleaning, close the solenoid valve 14 and open the electric control valve 13 to make the water inlet 2 and the water outlet 7 form a passage.

[0035] The second step: During use, a buffer plate 404 and a support spring 402 are installed at the water inlet 2. When the water pressure is too high, the buffer plate 404 and the support spring 402 provide a counterforce to reduce the impact force generated by the excessive water pressure, further protecting the precision components inside the equipment.

[0036] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming.

[0037] All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A compact anti-clogging sewage filter, comprising a connecting pipe (1), characterized in that: A water inlet (2) is connected through the back of the connecting pipe (1). Two connecting blocks (3) are fixedly connected to the inner wall of the water inlet (2). A buffer mechanism (4) is fixedly connected to the surface of the connecting blocks (3). A filter screen (5) is fixedly connected inside the connecting pipe (1). A cleaning mechanism (6) is slidably connected to the surface of the filter screen (5). The buffer mechanism (4) includes a fixed cylinder (401) fixedly connected to the surface of the connecting block (3), a support spring (402) fixedly connected inside the fixed cylinder (401), a telescopic rod (403) fixedly connected to one side of the support spring (402), and a buffer plate (404) fixedly connected to one side of the telescopic rod (403). The cleaning mechanism (6) includes a brush head (601) slidably connected to the surface of the filter screen (5), a brush plate (602) fixedly connected to one side of the brush head (601), and a hydraulic rod (603) fixedly connected to the top of the brush plate (602).

2. A compact anti-clogging sewage filter according to claim 1, characterized in that: The right side of the connecting pipe (1) is connected to a water outlet (7), and a flange connector (8) is installed on the surface of the water outlet (7).

3. A compact anti-clogging sewage filter according to claim 1, characterized in that: The bottom of the connecting pipe (1) is connected to a drain pipe (9), and a flange (10) is installed at the end of the drain pipe (9).

4. A compact anti-clogging sewage filter according to claim 3, characterized in that: A solenoid valve (14) is installed on the surface of the sewage pipe (9), and a PLC controller (11) is electrically connected to one side of the solenoid valve (14) via a power line.

5. A compact anti-clogging sewage filter according to claim 1, characterized in that: A pressure gauge (12) is installed on the surface of the water inlet (2), and one side of the pressure gauge (12) is electrically connected to one side of the PLC controller (11) via a power cord.

6. A compact anti-clogging sewage filter according to claim 4, characterized in that: One side of the PLC controller (11) is electrically connected to an electric control valve (13) via a power line, and the electric control valve (13) is installed near the water inlet (2).

7. A compact anti-clogging sewage filter according to claim 1, characterized in that: The surface of the connecting pipe (1) is provided with a through hole, and the hydraulic rod (603) is installed on the surface of the through hole.

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