Front primary filtering device for sewage treatment

Abstract

The utility model discloses a front primary filtering device for sewage treatment. The front primary filtering device comprises a box body, wherein the box body is cuboid-shaped; the filter cartridge is vertically and rotatably mounted in the middle of the box body, and the two ends of the filter cartridge are in sliding sealing fit with the inner wall of the box body; the gear motor is arranged outside the box body and is in transmission connection with the filter cartridge; the water outlet is formed in the middle of the box body, and the inner side end of the water outlet is communicated with the interior of the filter cartridge; the fixing frame is arranged on the outer side of the middle of the box body and comprises four stand columns and a top plate arranged at the upper ends of the stand columns. The filter cartridge surface cleaning mechanism is arranged on the top plate and is used for cleaning the surface of the filter cartridge; the material guide slopes are used for guiding and discharging dirt cleaned by the filter cartridge surface cleaning mechanism, and the two material guide slopes are symmetrically arranged on the two sides of the middle of the box body; the upper ends of the vertical columns are fixed on the box body, and the middle parts are fixed on the corresponding vertical columns. The design does not need manual cleaning of the surface of the filter cartridge, and can keep smooth flow of sewage for a long time.

Description

Technical Field

[0001] This utility model relates to the field of wastewater, and in particular to a pre-filtration device for wastewater treatment. Background Technology

[0002] Wastewater treatment refers to the process of purifying polluted water. In the wastewater treatment process, it is necessary to first filter the pollutants in the wastewater so that the wastewater can be purified more thoroughly in subsequent processes.

[0003] Common primary filtration methods typically involve using filter screens with varying mesh sizes to pre-filter wastewater. However, this method is prone to filter clogging, requiring regular manual cleaning to ensure smooth wastewater flow. Utility Model Content

[0004] The purpose of this invention is to provide a pre-filtration device for wastewater treatment that does not require manual cleaning of the filter screen and can maintain smooth wastewater flow for a long time.

[0005] The purpose of this utility model is achieved as follows: a pre-filtration device for sewage treatment includes a box, which is rectangular in shape; a filter cartridge, which is vertically rotatable and installed in the middle of the box, with its two ends slidingly sealed to the inner wall of the box; a geared motor, which is located outside the box and is connected to the filter cartridge for transmission; a drain outlet, which is located in the middle of the box and whose inner end is connected to the inside of the filter cartridge; a fixing frame, which is located on the outer side of the middle of the box and includes four columns and a top plate located on the upper end of the columns; a filter cartridge surface cleaning mechanism, which is located on the top plate and is used to clean the surface of the filter cartridge; and two guide slopes, which are used to guide and discharge the dirt cleaned by the filter cartridge surface cleaning mechanism, symmetrically arranged on both sides of the middle of the box; their upper ends are fixed to the box and their middle parts are fixed to the corresponding columns.

[0006] Compared with the prior art, the beneficial effects of this utility model are as follows: the pre-filtration device provided by this utility model does not require manual cleaning of the filter screen and can maintain the smooth flow of sewage for a long time; specifically, the filter screen is set as a cylindrical filter cylinder, which has a larger filtration area, thus the flow is smoother and less prone to clogging; on the other hand, the filter cylinder is also set to be rotatable, and a filter cylinder surface cleaning mechanism is added to continuously clean the surface of the exposed part of the filter cylinder, thereby automatically cleaning the surface of the filter cylinder in all directions, further reducing the possibility of clogging.

[0007] As a preferred embodiment of this utility model, the above-mentioned filter cartridge surface cleaning mechanism includes a mounting base, two of which are fixedly mounted on the lower end face of the top plate; a reciprocating screw, which is rotatably mounted on the mounting base; a slide block, which is reciprocally movable on the reciprocating screw and slides in cooperation with the top plate; a cleaning brush for brushing the filter cartridge surface is provided at its lower end; and a cleaning motor, which is mounted on the mounting base and is drivenly connected to the reciprocating screw.

[0008] Furthermore, the filter cartridge includes a central shaft, which is rotatably mounted on the housing. The geared motor is connected to the central shaft for transmission, and the central shaft is provided with several support frames. The filter cartridge body includes a filter screen body made of filter screen, and also includes fixing rings provided at both ends of the filter screen body that slide and seal with the inner wall of the housing.

[0009] Furthermore, the outer periphery of the aforementioned filter body is provided with several centrally symmetrically distributed dirt-blocking plates.

[0010] Furthermore, the aforementioned guide slope is also equipped with a vibrating motor for assisting material drop. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model.

[0012] Figure 2 This is a schematic diagram showing the fit between the filter cartridge and the housing of this utility model.

[0013] The components include: 1. housing, 2. central shaft, 2a. support frame, 3. filter cartridge body, 3a. fixing ring, 3b. filter screen body, 3c. baffle plate, 4. geared motor, 5. drain outlet, 6. fixing frame, 6a. top plate, 6b. column, 7. guide slope, 8. mounting base, 9. reciprocating screw, 10. slide block, 10a. cleaning brush, and 11. cleaning motor. Detailed Implementation

[0014] The above-mentioned and other technical features and advantages of this utility model will be described in more detail below with reference to the accompanying drawings.

[0015] Combined with appendix Figure 1 , 2As shown, a pre-filtration device for wastewater treatment includes a box 1, which is rectangular in shape; a filter cartridge, which is vertically rotatable and installed in the middle of the box 1, with both ends slidingly sealed to the inner wall of the box 1; a reduction motor 4, which is located outside the box 1 and is connected to the filter cartridge for transmission; a drain outlet 5, which is located in the middle of the box 1 and whose inner end is connected to the inside of the filter cartridge; a fixing frame 6, which is located on the outer side of the middle of the box 1, and includes four columns 6b and a top plate 6a located on the upper end of the columns 6b; a filter cartridge surface cleaning mechanism, which is located on the top plate 6a and is used to clean the surface of the filter cartridge; and two guide slopes 7, which are used to guide and discharge the dirt cleaned by the filter cartridge surface cleaning mechanism, symmetrically arranged on both sides of the middle of the box 1; their upper ends are fixed to the box 1 and their middle parts are fixed to the corresponding columns 6b.

[0016] The filter cartridge surface cleaning mechanism includes two mounting bases 8, both fixedly mounted on the lower end face of the top plate 6a; a reciprocating screw 9 rotatably mounted on the mounting base 8; a slide 10 reciprocally movable on the reciprocating screw 9 and slidingly engaged with the top plate 6a; a cleaning brush 10a for brushing the filter cartridge surface at its lower end; and a cleaning motor 11 mounted on the mounting base 8 and drivenly connected to the reciprocating screw 9.

[0017] It should be noted that when the filter cartridge surface cleaning mechanism is working, the cleaning motor 11 starts, drives the reciprocating screw 9 to rotate, and then drives the slide 10 to move back and forth along the length of the reciprocating screw 9. The cleaning brush 10a also moves back and forth accordingly, continuously brushing the upper end of the filter cartridge.

[0018] The filter cartridge includes a central shaft 2, which is rotatably mounted on the housing 1. The geared motor 4 is connected to the central shaft 2 for transmission. The central shaft 2 is provided with several support frames 2a. The filter cartridge body 3 includes a filter screen body 3b made of filter screen, and also includes fixing rings 3a provided at both ends of the filter screen body 3b, which slide and seal with the inner wall of the housing 1.

[0019] The outer periphery of the filter body 3b is provided with several centrally symmetrically distributed baffles 3c. It should be noted that as the filter cartridge rotates, some of the dirt in the sewage will fall from the surface of the filter body 3b back into the sewage, and will not gradually move to the upper end of the filter body 3b as it rotates. The addition of baffles 3c greatly alleviates this situation, reduces the possibility of this dirt falling, and makes it easier for the filter body 3b to collect dirt and transfer it to its upper end, where it will eventually be cleaned by the filter cartridge surface cleaning mechanism.

[0020] The aforementioned guide slope 7 is also equipped with a vibrating motor for assisting material drop.

[0021] During operation, wastewater enters the tank 1 from both ends, is filtered by the filter cartridge, and then flows out from the drain outlet 5.

[0022] Meanwhile, the filter cartridge rotates regularly under the drive of the geared motor 4. That is, the filter cartridge stops rotating for a certain period of time after rotating a certain angle, and then starts rotating again. The specific interval rotation angle can be set according to the cleaning width of the cleaning brush 10a and the interval angle of the baffle plate 3c. The interval stop time can be set according to the cleaning time and cleaning effect of the filter cartridge surface cleaning mechanism. As the filter cartridge rotates, some dirt adheres to the surface of the filter cartridge and moves to its upper end with the filter cartridge. Some dirt is intercepted by the baffle plate 3c and carried to its upper end.

[0023] During the interval when the filter cartridge stops rotating, the filter cartridge surface cleaning mechanism works, controlling the cleaning brush 10a to move back and forth, continuously brushing the upper end of the filter cartridge, and cleaning the dirt on the upper end of the filter cartridge onto the guide slope 7, and then discharging it.

[0024] 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 pre-filtration device for wastewater treatment, characterized in that: The primary filtration device includes Box (1), the box (1) is rectangular; The filter cartridge is vertically rotatably installed in the middle of the box (1), and its two ends are slidably sealed to the inner wall of the box (1); A geared motor (4) is installed outside the housing (1) and is connected to the filter cartridge drive. Drainage outlet (5), the drainage outlet (5) is located in the middle of the box (1), and its inner end is connected to the inside of the filter cartridge; The fixing frame (6) is located on the outer side of the middle part of the box (1), and includes four columns (6b) and a top plate (6a) located on the upper end of the columns (6b). A filter cartridge surface cleaning mechanism is provided on the top plate (6a) and is used to clean the surface of the filter cartridge. The guide slope (7) is used to guide the dirt cleaned by the filter cartridge surface cleaning mechanism to discharge. There are two of them, which are symmetrically arranged on both sides of the middle part of the box (1). The upper end is fixed on the box (1) and the middle part is fixed on the corresponding column (6b).

2. The pre-filtration device for wastewater treatment according to claim 1, characterized in that: The filter cartridge surface cleaning mechanism includes Mounting base (8), there are two mounting bases (8), both of which are fixedly mounted on the lower end surface of the top plate (6a); A reciprocating lead screw (9) is rotatably mounted on a mounting base (8); A slide (10) is reciprocally mounted on a reciprocating screw (9) and slides in cooperation with a top plate (6a); its lower end is provided with a cleaning brush (10a) for scrubbing the surface of the filter cartridge. Cleaning motor (11) is mounted on mounting base (8) and is connected to reciprocating lead screw (9) for transmission.

3. A pre-filtration device for wastewater treatment according to claim 1 or 2, characterized in that: The filter cartridge includes A central shaft (2) is rotatably mounted on a housing (1). The geared motor (4) is connected to the central shaft (2) in a transmission. Several support frames (2a) are provided on the central shaft (2). The filter cartridge body (3) includes a filter screen body (3b) made of filter screen, and also includes fixing rings (3a) at both ends of the filter screen body (3b) that slide and seal with the inner wall of the box (1).

4. The pre-filtration device for wastewater treatment according to claim 3, characterized in that: The outer periphery of the filter body (3b) is provided with several centrally symmetrically distributed dirt-blocking plates (3c).

5. A pre-filtration device for wastewater treatment according to any one of claims 1, 2, and 4, characterized in that: The guide slope (7) is also equipped with a vibrating motor for assisting material drop.

Images