Sewage filtering device for environmental protection equipment

Abstract

The utility model discloses an environment-friendly equipment sewage filtering device which comprises a filtering box, a filtering net plate is arranged in the filtering box, a scraping plate is arranged at the bottom end of the filtering net plate, a movable driving structure is arranged by being matched with the scraping plate, an arc-shaped seat is obliquely arranged at the bottom end in the filtering box, and a spiral conveying shaft is coaxially arranged on the arc-shaped seat. The spiral conveying shaft is installed on the filter box through a bearing and is in transmission connection with a first motor, a discharging pipe matched with the spiral conveying shaft is arranged on the filter box, an extrusion cover is arranged between the discharging pipe and the filter box, and the spiral conveying shaft extends into the extrusion cover to be provided with spiral extrusion blades. According to the sewage filtering device disclosed by the utility model, the filter screen plate is convenient to clean in the sewage filtering process, and impurities are convenient to clean at the same time, a water inlet pipe is arranged between the filter screen plate and the arc-shaped seat, and a liquid outlet pipe is arranged at the top end of the filtering box.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, and more specifically, to a sewage filtering device for environmental protection equipment. Background Art

[0002] In daily life and production and processing, a lot of sewage is generated. These sewage need to be purified when discharged. However, these sewage contain a lot of impurities. Direct discharge will cause pipe blockage. Therefore, impurities in sewage need to be filtered during sewage treatment.

[0003] The traditional sewage filtering method is mainly to filter through a filter net, but the existing sewage filtering device is not convenient to clean the filter net, which will cause the filter net to be blocked over time, affecting the filtering effect of the filter net. Therefore, the filter net needs to be regularly disassembled for cleaning or replacement, which is less convenient to use;

[0004] In addition, the existing environmental protection equipment sewage filtering device contains a lot of water when discharging the collected impurities, and most of them are in a muddy state when discharged, which is not convenient for squeezing and dehydrating the impurities, affecting the convenience of subsequent processing. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the problems existing in the prior art, the utility model provides a filtering device for sewage from environmental protection equipment to solve the technical problems mentioned in the background technology that the filtering device for sewage from environmental protection equipment in the prior art is not convenient for cleaning the filter net and is not convenient for dehydrating and cleaning the intercepted impurities.

[0007] (II) Technical solution

[0008] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0009] A sewage filtering device for environmental protection equipment comprises a filter box, wherein a filter screen is arranged inside the filter box, a scraper is arranged at the bottom end of the filter screen, and a movable driving structure is arranged in cooperation with the scraper, an arc seat is arranged obliquely at the bottom end of the inner part of the filter box, a spiral conveying shaft is arranged coaxially on the arc seat, the spiral conveying shaft is mounted on the filter box through a bearing, and is transmission-connected to a first motor, a discharge pipe is arranged on the filter box in cooperation with the spiral conveying shaft, an extrusion cover is arranged between the discharge pipe and the filter box, a spiral extrusion blade is arranged in the extrusion cover when the spiral conveying shaft extends to the discharge pipe, a spiral discharge blade is arranged when the spiral extrusion blade extends to the discharge pipe, an inlet pipe is arranged between the filter screen and the arc seat, and a liquid discharge pipe is arranged at the top of the filter box.

[0010] The utility model is further configured such that a backwash pipe is connected to the liquid outlet pipe, the tail end of the backwash pipe extends to the inside of the filter box, and a backwash component is provided toward the filter screen plate, and a pressure pump is provided on the backwash pipe to achieve backwashing of the filter screen plate and improve the backwashing effect of the filter screen plate.

[0011] The utility model is further configured that the recoil assembly includes a spray pipe arranged above the filter screen and connected to the recoil pipe, and a plurality of high-pressure nozzles are evenly arranged on the spray pipe to achieve high-pressure spraying of the filter screen.

[0012] The utility model is further configured such that the mobile driving structure includes a driving rod rotatably installed in the filter box through a bearing, and a second motor is provided for transmission connection with the driving rod, the scraper is threadedly sleeved on the driving rod, and a mobile limiting structure is provided in the filter box to cooperate with the scraper to realize mobile driving of the scraper.

[0013] The utility model is further configured that the movable limiting structure includes limiting columns arranged on both sides of the driving rod, and the scraper is slidably sleeved on the limiting columns to realize the movement and guidance of the scraper.

[0014] The utility model is further configured to further include a base, and the bottom end of the base is provided with moving wheels to facilitate the movement of the whole.

[0015] The utility model is further configured such that the output end of the material discharge pipe is higher than the liquid discharge pipe, and a valve is provided on the material discharge pipe to facilitate the control of the opening and closing of the liquid discharge pipe.

[0016] The utility model is further configured that a soft scraping head is arranged at the top end of the scraper to improve the scraping effect of the scraper.

[0017] (III) Beneficial effects

[0018] Compared with the prior art, the utility model provides a sewage filtering device for environmental protection equipment, which has the following beneficial effects:

[0019] 1. The utility model comprises a filter box, wherein a filter screen is arranged inside the filter box, a scraper is arranged at the bottom end of the filter screen, and a movable driving structure is arranged in cooperation with the scraper, wherein the movable driving structure comprises a driving rod rotatably installed in the filter box through a bearing, and a second motor is arranged for transmission connection with the driving rod, the scraper is threadedly sleeved on the driving rod, a movable limiting structure is arranged in cooperation with the scraper in the filter box, the movable limiting structure comprises limiting columns arranged on both sides of the driving rod, and the scraper is slidably sleeved on the limiting columns; in this way, during the sewage filtering process, impurities in the sewage will be intercepted by the filter screen and collected in the filter box, and the second motor is started, and the driving rod can be controlled to rotate by the second motor, and the threaded matching relationship between the driving rod and the scraper and the sliding matching relationship between the scraper and the limiting column can be realized in this way, so that the scraper can be moved at the bottom end of the filter screen, thereby realizing the scraping and cleaning of the surface of the filter screen, improving the convenience of cleaning the surface of the filter screen, and improving the filtering effect of the filter screen.

[0020] 2. The utility model has an arc seat obliquely arranged at the inner bottom end of the filter box, a spiral conveying shaft is coaxially arranged on the arc seat, the spiral conveying shaft is installed on the filter box through a bearing, and is transmission-connected to a first motor, a discharge pipe is arranged on the filter box to cooperate with the spiral conveying shaft, and impurities intercepted by the filter screen in the filter box will settle at the inner bottom end of the filter box and accumulate on the arc seat. When the first motor is started, the spiral conveying shaft can be controlled to rotate by the first motor, and the impurities settled on the arc seat can be discharged outward through the discharge pipe by the spiral conveying shaft, thereby realizing timely cleaning of the impurities.

[0021] 3. The utility model is provided with an extrusion hood between the discharge pipe and the filter box, the spiral conveying shaft extends to the extrusion hood and is provided with spiral extrusion blades, the spiral extrusion blades extend to the discharge pipe and are provided with spiral discharge blades, when the spiral conveying blades rotate, the spiral extrusion blades and the spiral discharge blades are driven to rotate at the same time, so that before the impurities are discharged through the discharge pipe, they will enter the extrusion hood, wherein the diameter of the discharge pipe is smaller than the diameter of the extrusion hood, so that when the impurities are transported from the extrusion hood to the discharge pipe, the discharge speed will be reduced, so that the impurities are accumulated in the extrusion hood, thereby realizing the extrusion of the impurities, so that when the impurities are discharged, the water carried therein is squeezed outward, thereby realizing the dehydration of the impurities.

[0022] 4. The utility model is provided with a recoil pipe connected to the liquid outlet pipe, the tail end of the recoil pipe extends to the inside of the filter box, and a recoil assembly is provided toward the filter screen plate, a pressure pump is provided on the recoil pipe, the recoil assembly includes a spray pipe provided above the filter screen plate and connected to the recoil pipe, a plurality of high-pressure nozzles are evenly provided on the spray pipe, and when the filter screen plate is cleaned, the pressure pump is started to transport the filtered clean water to the recoil pipe, and then to the spray pipe through the recoil pipe, and then sprayed out through the high-pressure nozzle on the spray pipe, so that the impurities adhering to the filter screen plate can be reversely flushed out downward, thereby improving the cleaning effect of the filter screen plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of a sewage filtering device for environmental protection equipment in the utility model. Figure 1 ;

[0024] Figure 2 This is a schematic diagram of the overall structure of a sewage filtering device for environmental protection equipment in the utility model. Figure 2 ;

[0025] Figure 3 The internal structure of the filter box in the utility model is shown in cross-section Figure 1 ;

[0026] Figure 4 The internal structure of the filter box in the utility model is shown in cross-section Figure 2 ;

[0027] Figure 5 It is a schematic diagram of the connection structure between the filter screen plate and the scraper in the utility model.

[0028] In the figure: 1. filter box; 2. filter screen; 3. scraper; 4. arc seat; 5. spiral conveyor shaft; 6. first motor; 7. discharge pipe; 8. extrusion cover; 9. spiral extrusion blade; 10. spiral discharge blade; 11. water inlet pipe; 12. liquid outlet pipe; 13. recoil pipe; 14. pressure pump; 15. spray pipe; 16. high-pressure nozzle; 17. drive rod; 18. second motor; 19. limit column; 20. base; 21. moving wheel; 22. valve; 23. soft scraper. DETAILED DESCRIPTION

[0029] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0030] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0031] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually used in reference to the directions shown in the drawings, or in reference to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually used in reference to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0032] See also Figure 1-5 A sewage filtering device for environmental protection equipment includes a filter box 1, a filter screen plate 2 is arranged inside the filter box 1, a scraper 3 is arranged at the bottom end of the filter screen plate 2, and a mobile driving structure is arranged in cooperation with the scraper 3, wherein the mobile driving structure includes a driving rod 17 rotatably installed in the filter box 1 through a bearing, and a second motor 18 is arranged in transmission connection with the driving rod 17, the scraper 3 is threadedly sleeved on the driving rod 17, a mobile limiting structure is arranged in cooperation with the scraper 3 in the filter box 1, the mobile limiting structure includes limiting columns 19 arranged on both sides of the driving rod 17, and the scraper 3 slides on the sleeve It is arranged on the limiting column 19; in this way, during the sewage filtration process, impurities in the sewage will be intercepted by the filter screen 2 and collected in the filter box 1, and the second motor 18 is started. The driving rod 17 can be controlled to rotate by the second motor 18. Through the threaded matching relationship between the driving rod 17 and the scraper 3 and the sliding matching relationship between the scraper 3 and the limiting column 19, the scraper 3 can be moved at the bottom end of the filter screen 2, thereby achieving scraping and cleaning of the surface of the filter screen 2, improving the convenience of cleaning the surface of the filter screen 2, and improving the filtering effect of the filter screen 2.

[0033] The utility model is provided with an arc seat 4 obliquely at the inner bottom end of the filter box 1, a spiral conveying shaft 5 is coaxially arranged on the arc seat 4, the spiral conveying shaft 5 is installed on the filter box 1 through a bearing, and is transmission-connected with a first motor 6, and a discharge pipe 7 is provided on the filter box 1 to cooperate with the spiral conveying shaft 5. Impurities intercepted by the filter screen plate 2 in the filter box 1 will be deposited at the inner bottom end of the filter box 1 and accumulated on the arc seat 4. The first motor 6 is started, and the spiral conveying shaft 5 can be controlled to rotate by the first motor 6. The impurities deposited on the arc seat 4 can be discharged outward through the discharge pipe 7 by the spiral conveying shaft 5, so that the impurities are cleaned in time.

[0034] In the utility model, an extrusion cover 8 is arranged between the discharge pipe 7 and the filter box 1, the spiral conveying shaft 5 extends to the extrusion cover 8 and is provided with a spiral extrusion blade 9, and the spiral extrusion blade 9 extends to the discharge pipe 7 and is provided with a spiral discharge blade 10. When the spiral conveying blade rotates, the spiral extrusion blade 9 and the spiral discharge blade 10 are driven to rotate at the same time, so that before the impurities are discharged through the discharge pipe 7, they will enter the extrusion cover 8, wherein the caliber of the discharge pipe 7 is smaller than the caliber of the extrusion cover 8, so that when the impurities are transported from the extrusion cover 8 to the discharge pipe 7, the discharge speed will be reduced, so that the impurities are accumulated in the extrusion cover 8, so that the extrusion of the impurities can be achieved, so that when the impurities are discharged, the moisture carried therein is squeezed outward, and the impurities are dehydrated.

[0035] The utility model is provided with a water inlet pipe 11 between the filter screen plate 2 and the arc seat 4 for water inlet into the filter box 1 during sewage filtering. A liquid outlet pipe 12 is provided at the top of the filter box 1 for water outlet after filtering.

[0036] See also Figure 1-Figure 5 As an implementation method of a filtering device for sewage from environmental protection equipment: a recoil pipe 13 is connected to the liquid outlet pipe 12, the tail end of the recoil pipe 13 extends to the inside of the filter box 1, and a recoil assembly is provided toward the filter screen plate 2, a pressure pump 14 is provided on the recoil pipe 13, the recoil assembly includes a spray pipe 15 arranged above the filter screen plate 2 and connected to the recoil pipe 13, and a plurality of high-pressure nozzles 16 are evenly arranged on the spray pipe 15.

[0037] Specifically, when cleaning the filter screen 2, the pressure pump 14 is started so that the filtered clean water flow is delivered to the backwash pipe 13, and then delivered to the spray pipe 15 through the backwash pipe 13, and sprayed outward through the high-pressure nozzle 16 on the spray pipe 15, so that the impurities adhering to the filter screen 2 can be flushed out in the reverse direction downward, thereby improving the cleaning effect of the filter screen 2.

[0038] See also Figure 1-Figure 5 As an implementation of the filtering device for sewage of environmental protection equipment: it also includes a base 20, and a moving wheel 21 is provided at the bottom end of the base 20.

[0039] Specifically, the cooperation between the base 20 and the moving wheels 21 facilitates the movement of the whole, wherein the moving wheels 21 are preferably universal wheels with a braking function.

[0040] See also Figure 1-Figure 5 As an implementation of the discharge pipe 7 , the output end of the discharge pipe 7 is higher than the liquid discharge pipe 12 , and a valve 22 is provided on the discharge pipe 7 .

[0041] Specifically, the valve 22 is provided to facilitate the control of the opening and closing of the discharge pipe 7 .

[0042] See also Figure 1-Figure 5 As an implementation of the scraper 3: a soft scraper head 23 is provided at the top of the scraper 3.

[0043] The soft scraper head 23 can improve the scraping effect of the scraper 3 on the filter screen plate 2 and avoid rigid friction between the scraper 3 and the filter screen plate 2.

[0044] In summary, when the overall equipment is in use:

[0045] The sewage to be filtered is transported to the filter box 1 through the liquid inlet pipe, and the impurities in the sewage will be intercepted by the filter screen 2 and collected in the filter box 1. The filtered water can be discharged outward through the liquid outlet pipe 12, and the second motor 18 is started. The second motor 18 can control the rotation of the driving rod 17. Through the threaded matching relationship between the driving rod 17 and the scraper 3 and the sliding matching relationship between the scraper 3 and the limit column 19, the scraper 3 can be moved at the bottom end of the filter screen 2, so as to scrape and clean the surface of the filter screen 2, improve the convenience of cleaning the surface of the filter screen 2, and improve the filtering effect of the filter screen 2;

[0046] At the same time, the booster pump 14 is started, so that part of the filtered clean water flow is delivered to the backwash pipe 13, and then delivered to the spray pipe 15 through the backwash pipe 13, and sprayed outward through the high-pressure nozzle 16 on the spray pipe 15, so that the impurities adhering to the filter screen plate 2 can be reversely flushed downward, thereby improving the cleaning effect of the filter screen plate 2;

[0047] The impurities intercepted by the filter screen plate 2 in the filter box 1 will settle at the bottom of the filter box 1 and accumulate on the arc seat 4. The first motor 6 is started, and the screw conveying shaft 5 can be controlled to rotate by the first motor 6. The impurities settled on the arc seat 4 can be discharged outward through the discharge pipe 7 by the screw conveying shaft 5, so that the impurities can be cleaned in time.

[0048] During this process, when the spiral conveying blade rotates, it will also drive the spiral extrusion blade 9 and the spiral discharging blade 10 to rotate. In this way, before the impurities are discharged through the discharge pipe 7, they will enter the extrusion hood 8. The diameter of the discharge pipe 7 is smaller than the diameter of the extrusion hood 8. Therefore, when the impurities are transported from the extrusion hood 8 to the discharge pipe 7, the discharge speed will be reduced, causing the impurities to accumulate in the extrusion hood 8, thereby achieving the extrusion of the impurities, squeezing out the water carried therein, and achieving the dehydration of the impurities.

[0049] In all the schemes mentioned above, the connection between two parts can be selected according to the actual situation by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which will not be described one by one here. In the above, all fixed connections are preferably considered to be welding. Although the embodiments of the utility model have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the attached claims and their equivalents;

[0050] In all the schemes mentioned above, the operation of electrical components is controlled by a controller. Since the devices matched with the controller are commonly used devices, their control principles and line connections are all existing well-known and mature technologies, and their electrical connection relationships and specific circuit structures will not be elaborated here.

Claims

1. A filtration device for sewage of an environmental protection device, comprising a filter box (1), wherein a filter screen plate (2) is arranged inside the filter box (1), and wherein: A scraper (3) is provided at the bottom end of the filter screen plate (2), and a moving drive structure is provided in cooperation with the scraper (3); an arc seat (4) is provided at an angle at the inner bottom end of the filter box (1); a screw conveying shaft (5) is provided coaxially on the arc seat (4); the screw conveying shaft (5) is mounted on the filter box (1) through a bearing and is transmission-connected to a first motor (6); a discharge pipe (7) is provided on the filter box (1) in cooperation with the screw conveying shaft (5); an extrusion cover (8) is provided between the discharge pipe (7) and the filter box (1); a spiral extrusion blade (9) is provided inside the screw conveying shaft (5) extending into the extrusion cover (8); a spiral discharge blade (10) is provided on the spiral extrusion blade (9) extending into the discharge pipe (7); a water inlet pipe (11) is provided between the filter screen plate (2) and the arc seat (4); and a liquid discharge pipe (12) is provided at the top end of the filter box (1).

2. The filter device for sewage from environmental protection equipment according to claim 1, characterized in that: The liquid outlet pipe (12) is connected to a backwash pipe (13), the tail end of the backwash pipe (13) extends into the interior of the filter box (1), and a backwash component is arranged toward the filter screen plate (2), and a pressure pump (14) is arranged on the backwash pipe (13).

3. The filter device for sewage from environmental protection equipment according to claim 2 is characterized by: The recoil assembly comprises a spray pipe (15) arranged above the filter screen plate (2) and connected to the recoil pipe (13), and a plurality of high-pressure spray heads (16) are evenly arranged on the spray pipe (15).

4. The filter device for sewage from environmental protection equipment according to claim 1, characterized in that: The movable driving structure comprises a driving rod (17) rotatably mounted in the filter box (1) via a bearing, and a second motor (18) is provided in transmission connection with the driving rod (17); the scraper (3) is threadedly sleeved on the driving rod (17); and a movable limiting structure is provided in the filter box (1) to cooperate with the scraper (3).

5. The filter device for sewage from environmental protection equipment according to claim 4 is characterized by: The movable limiting structure comprises limiting columns (19) arranged on both sides of the driving rod (17), and the scraper (3) is slidably sleeved on the limiting columns (19).

6. A sewage filtering device for environmental protection equipment according to any one of claims 1 to 5, characterized in that: It also comprises a base (20), and a moving wheel (21) is arranged at the bottom end of the base (20).

7. The environmental protection equipment sewage filtering device according to claim 1 is characterized by: The output end of the discharge pipe (7) is higher than the liquid discharge pipe (12), and a valve (22) is provided on the discharge pipe (7).

8. The environmental protection equipment sewage filtering device according to claim 1 is characterized by: A soft scraping head (23) is provided at the top end of the scraper (3).

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