Papermaking wastewater filtering device

Abstract

The utility model relates to the technical field of multi-medium filters, and discloses a papermaking wastewater filtering device which comprises a device body, a liquid collecting plate is fixedly connected to the inner wall of the top of the device body, the liquid collecting plate is in an inverted cone shape, the bottom face of the liquid collecting plate is fixedly connected with an arc-shaped filtering plate, and the arc-shaped filtering plate is fixedly connected with the bottom face of the device body. One side of the arc-shaped filter plate is fixedly connected with a rotating shaft, the outer wall of the rotating shaft is fixedly connected with spiral blades, the outer wall of the device body is fixedly connected with a connecting cylinder, the connecting cylinder is communicated with the arc-shaped filter plate, one end of the rotating shaft penetrates through the outer wall of the connecting cylinder, and one side of the connecting cylinder is fixedly connected with a motor; according to the waste water filtering device, waste water is pretreated by utilizing the arc-shaped filtering plate, so that impurities with larger volumes in the waste water can be firstly separated out of the waste water, more impurities are prevented from being accumulated on the filter element in the device body, the service life of the filter element is prolonged, the overall filtering efficiency of the waste water filtering device is improved, and the waste water treatment cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of multi-media filters, in particular to a papermaking wastewater filtering device. Background Art

[0002] A large amount of wastewater is generated during the operation of paper mills. In order to recycle the wastewater, wastewater filtration devices are used to treat the wastewater, so that it can be discharged or reused. General wastewater filtration devices include multi-media filters. Multi-media filters are equipment that uses a variety of filter media to pass water with high turbidity through a certain thickness of granular or non-granular materials under a certain pressure, thereby effectively removing suspended impurities and clarifying the water.

[0003] The patent with the announcement number CN207031131U discloses a multi-media filter, including a tank body, a water inlet, a water outlet, a backwash water inlet, a backwash water outlet, an air wash outlet, a normal wash outlet, an exhaust valve, a manhole, and a discharge port; the top of the tank body is provided with a water inlet pipe and an exhaust pipe, the bottom is provided with a water outlet pipe and a discharge port, and the side of the tank body is provided with a manhole and an upper air wash port; the water inlet pipe is provided with a water inlet and a backwash outlet; the water outlet pipe is provided with a water outlet, a lower air wash port, a backwash water inlet, and a normal wash outlet; the exhaust pipe is provided with a solenoid valve. The multi-media filter provided by this technical solution has a simple structure, is easy to use, has a low manufacturing cost, a wide range of applications, a fast filtering speed, is easy to maintain, and has a long service life.

[0004] Although the above device solves the problem of complex filter structure and high manufacturing cost of the equipment, the following problems still exist:

[0005] During use, the existing wastewater filtering device is unable to pre-clean large impurities in the wastewater, resulting in large impurities in the wastewater falling directly onto the filter element. After long-term use, more impurities will accumulate on the surface of the filter element, resulting in reduced filtration efficiency of the filter element, and then reduced wastewater treatment efficiency. It will also reduce the service life of the filter element and increase the cost of wastewater treatment. Utility Model Content

[0006] In view of the deficiencies of the prior art, the utility model provides a papermaking wastewater filtering device, so that the wastewater filtering device can pre-treat large impurities in the wastewater.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a papermaking wastewater filtering device, including a device body, a liquid collecting plate is fixedly connected to the inner wall of the top of the device body, the liquid collecting plate is an inverted cone-shaped arrangement, an arc-shaped filter plate is fixedly connected to the bottom surface of the liquid collecting plate, a rotating shaft is fixedly connected to one side of the arc-shaped filter plate, a spiral blade is fixedly connected to the outer wall of the rotating shaft, a connecting tube is fixedly connected to the outer wall of the device body, the connecting tube is communicated with the arc-shaped filter plate, one end of the rotating shaft passes through the outer wall of the connecting tube, a motor is fixedly connected to one side of the connecting tube, the output end of the motor is fixedly connected to the rotating shaft, and a collecting component is connected to the bottom outer wall of the connecting tube.

[0008] Furthermore, the collection component includes a collection cabinet, a cabinet door, a threaded rod and a fixed block. The collection cabinet is fixedly connected to the bottom outer wall of the connecting tube, the collection cabinet is communicated with the connecting tube, the cabinet door is detachably connected to one side of the collection cabinet, two symmetrically arranged threaded rods are fixedly connected to one side of the collection cabinet, a connecting groove corresponding to the position of the threaded rod is opened on the surface of the cabinet door, the outer wall of the threaded rod is threadedly connected to a fixing block, and one side of the fixing block is in contact with the surface of the cabinet door.

[0009] Furthermore, a collection box is fixedly connected to one side of the cabinet door, and the collection box is located in the collection cabinet.

[0010] Furthermore, the bottom surface of the collection box is provided with a plurality of sieve holes, the bottom surface of the inner wall of the collection cabinet is provided with a liquid collecting trough, the bottom surface of the collection cabinet is fixedly connected with a connecting pipe connected with the liquid collecting trough, and the other end of the connecting pipe is connected with the device body.

[0011] Furthermore, a handle is fixedly connected to the middle portion of one side of the cabinet door.

[0012] Furthermore, a sealing ring is fixedly connected to the back side of the cabinet door.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The utility model arranges a liquid collecting plate and an arc filter plate in the device body, and utilizes the arc filter plate to pre-treat the wastewater, so that impurities with larger volume in the wastewater are separated out of the wastewater first, thereby preventing a large amount of impurities from accumulating on the filter element in the device body, thereby increasing the service life of the filter element, improving the overall filtration efficiency of the wastewater filtering device, and reducing the cost of wastewater treatment; the cooperation between the motor and the spiral blades can remove impurities from the arc filter plate, thereby facilitating the arc filter plate to perform subsequent filtering operations and preventing impurities from clogging the arc filter plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0016] Figure 2 It is a three-dimensional structural schematic diagram of the liquid collecting plate, spiral blades, connecting tube and motor of the utility model;

[0017] Figure 3 It is a three-dimensional cross-sectional structural diagram of the liquid collecting plate, spiral blades and connecting tube of the utility model;

[0018] Figure 4 It is a three-dimensional structural schematic diagram of the collection cabinet, cabinet door, collection box and handle of the utility model;

[0019] Figure 5 It is a three-dimensional cross-sectional structural diagram of the cabinet door, the collection box and the sealing ring of the utility model.

[0020] In the figure: 1. device body; 2. liquid collecting plate; 3. arc filter plate; 4. rotating shaft; 5. spiral blade; 6. connecting cylinder; 7. motor; 8. collecting cabinet; 9. cabinet door; 10. threaded rod; 11. connecting groove; 12. fixing block; 13. collecting box; 14. liquid collecting tank; 15. connecting pipe; 16. handle; 17. sealing ring; 18. sieve hole. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] like Figures 1 to 5 As shown, a papermaking wastewater filtering device includes a device body 1, a liquid collecting plate 2 is fixedly connected to the inner wall of the top of the device body 1, the liquid collecting plate 2 is an inverted cone shape, an arc-shaped filter plate 3 is fixedly connected to the bottom surface of the liquid collecting plate 2, a rotating shaft 4 is fixedly connected to one side of the arc-shaped filter plate 3, a spiral blade 5 is fixedly connected to the outer wall of the rotating shaft 4, a connecting tube 6 is fixedly connected to the outer wall of the device body 1, the connecting tube 6 is communicated with the arc-shaped filter plate 3, one end of the rotating shaft 4 is penetrated by the outer wall of the connecting tube 6, a motor 7 is fixedly connected to one side of the connecting tube 6, the output end of the motor 7 is fixedly connected to the rotating shaft 4, and a collecting component is connected to the bottom outer wall of the connecting tube 6.

[0023] like Figure 1 As shown, a papermaking wastewater filter device in the utility model is similar to the existing multi-media filter structure, such as a multi-media filter disclosed in the patent publication number CN207031131U. The main improvement of the utility model is that the wastewater filter device can pre-treat large impurities in the wastewater, such as Figures 1 to 5As shown, when a papermaking wastewater filtering device in the utility model is in use, the wastewater will first fall on the liquid collecting plate 2 after entering the device body 1, and flow along the liquid collecting plate 2 to the arc filter plate 3, and the wastewater is filtered by the arc filter plate 3, so that larger impurities will be directly retained on the arc filter plate 3. At this time, under the drive of the motor 7, the rotating shaft 4 will drive the spiral blade 5 to rotate, and the spiral blade 5 will push the impurities toward the connecting tube 6. When the impurities move into the connecting tube 6, they will be collected by the collecting component.

[0024] By arranging a liquid collecting plate 2 and an arc-shaped filter plate 3 in the device body 1, the arc-shaped filter plate 3 is used to pre-treat the wastewater, so that impurities with larger volumes in the wastewater are separated from the wastewater first, thereby preventing a large amount of impurities from accumulating on the filter element in the device body 1, thereby increasing the service life of the filter element, improving the overall filtration efficiency of the wastewater filtration device, and reducing the cost of wastewater treatment; by utilizing the mutual cooperation of the motor 7 and the spiral blade 5, impurities can be removed from the arc-shaped filter plate 3, thereby facilitating the arc-shaped filter plate 3 to perform subsequent filtration operations and preventing impurities from clogging the arc-shaped filter plate 3.

[0025] like Figures 1 to 5 As shown, the collection component includes a collection cabinet 8, a cabinet door 9, a threaded rod 10 and a fixed block 12. The collection cabinet 8 is fixedly connected to the bottom outer wall of the connecting tube 6, the collection cabinet 8 is communicated with the connecting tube 6, the cabinet door 9 is detachably connected to one side of the collection cabinet 8, one side of the collection cabinet 8 is fixedly connected to two symmetrically arranged threaded rods 10, a connecting groove 11 corresponding to the position of the threaded rod 10 is opened on the surface of the cabinet door 9, the outer wall of the threaded rod 10 is threadedly connected to the fixing block 12, and one side of the fixing block 12 is in contact with the surface of the cabinet door 9.

[0026] Specifically, the collection cabinet 8 can be used to collect impurities filtered out by the arc filter plate 3 to prevent the impurities from obstructing the operation of the spiral blades 5 and the arc filter plate 3; when the impurities in the collection cabinet 8 are about to be full, the staff can stop the wastewater filtering device as a whole, then unscrew the fixing block 12, and then open the cabinet door 9 to clean the impurities in the collection cabinet 8. After cleaning, reinstall the cabinet door 9 and the fixing block 12 to continue filtering; the fixing block 12 can increase the stability and sealing of the cabinet door 9 to prevent wastewater from flowing out of the gap between the cabinet door 9 and the collection cabinet 8.

[0027] like Figure 2 , Figure 4 and Figure 5 As shown, a collection box 13 is fixedly connected to one side of the cabinet door 9 , and the collection box 13 is located in the collection cabinet 8 .

[0028] Specifically, after the impurities fall into the collection cabinet 8, they will directly fall into the collection box 13. When the staff needs to clean the impurities, they only need to pull out the cabinet door 9 and the collection box 13, and then pour out the impurities in the collection box 13 to complete the impurity cleaning. The use of the collection box 13 can improve the efficiency of the staff in cleaning impurities, thereby improving the wastewater filtration efficiency.

[0029] like Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the collecting box 13 has a plurality of sieve holes 18 on its bottom surface, a liquid collecting tank 14 is provided on the bottom surface of the inner wall of the collecting cabinet 8, a connecting pipe 15 connected to the liquid collecting tank 14 is fixedly connected to the bottom surface of the collecting cabinet 8, and the other end of the connecting pipe 15 is connected to the device body 1.

[0030] Specifically, the sieve holes 18 are smaller than the filter holes on the arc filter plate 3; the spiral blades 5 will drive a portion of the wastewater into the collection box 13, at which time the sieve holes 18 will perform a secondary screening on the wastewater, and the screened wastewater will enter the liquid collecting tank 14, and then flow back to the device body 1 through the connecting pipe 15. This arrangement can not only clean the accumulated water in the collection box 13, but also perform a secondary screening on the wastewater.

[0031] like Figure 2 and Figure 4 As shown, a handle 16 is fixedly connected to the middle of one side of the cabinet door 9.

[0032] Specifically, the handle 16 can bring convenience to the staff in removing the cabinet door 9, provide a force point for the staff's hands to apply force to the cabinet door 9, and improve the staff's working experience.

[0033] like Figure 5 As shown, a sealing ring 17 is fixedly connected to the back of the cabinet door 9 .

[0034] Specifically, the sealing ring 17 can further enhance the sealing performance of the cabinet door 9 and further prevent waste water from flowing out.

[0035] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention.

Claims

1. A papermaking wastewater filtering device, comprising a device body (1), characterized in that: The top inner wall of the device body (1) is fixedly connected to a liquid collecting plate (2), the liquid collecting plate (2) is in an inverted cone shape, the bottom surface of the liquid collecting plate (2) is fixedly connected to an arc-shaped filter plate (3), one side of the arc-shaped filter plate (3) is fixedly connected to a rotating shaft (4), the outer wall of the rotating shaft (4) is fixedly connected to a spiral blade (5), the outer wall of the device body (1) is fixedly connected to a connecting tube (6), the connecting tube (6) is connected to the arc-shaped filter plate (3), one end of the rotating shaft (4) is penetrated by the outer wall of the connecting tube (6), one side of the connecting tube (6) is fixedly connected to a motor (7), the output end of the motor (7) is fixedly connected to the rotating shaft (4), and the bottom outer wall of the connecting tube (6) is connected to a collecting component.

2. A papermaking wastewater filtration device according to claim 1, characterized in that: The collection assembly comprises a collection cabinet (8), a cabinet door (9), a threaded rod (10) and a fixing block (12); the collection cabinet (8) is fixedly connected to the outer wall of the bottom of the connecting tube (6); the collection cabinet (8) is communicated with the connecting tube (6); the cabinet door (9) is detachably connected to one side of the collection cabinet (8); two symmetrically arranged threaded rods (10) are fixedly connected to one side of the collection cabinet (8); a connection groove (11) corresponding to the position of the threaded rod (10) is provided on the surface of the cabinet door (9); the fixing block (12) is threadedly connected to the outer wall of the threaded rod (10); and one side of the fixing block (12) is in contact with the surface of the cabinet door (9).

3. A papermaking wastewater filtering device according to claim 2, characterized in that: A collection box (13) is fixedly connected to one side of the cabinet door (9), and the collection box (13) is located in the collection cabinet (8).

4. A papermaking wastewater filtering device according to claim 3, characterized in that: The bottom surface of the collection box (13) is provided with a plurality of sieve holes (18); the bottom surface of the inner wall of the collection cabinet (8) is provided with a liquid collecting tank (14); the bottom surface of the collection cabinet (8) is fixedly connected with a connecting pipe (15) connected with the liquid collecting tank (14); the other end of the connecting pipe (15) is connected with the device body (1).

5. A papermaking wastewater filtration device according to claim 2, 3 or 4, characterized in that: A handle (16) is fixedly connected to the middle portion of one side of the cabinet door (9).

6. A papermaking wastewater filtration device according to claim 2, 3 or 4, characterized in that: A sealing ring (17) is fixedly connected to the back side of the cabinet door (9).

7. The papermaking wastewater filtering device according to claim 5, characterized in that: A sealing ring (17) is fixedly connected to the back side of the cabinet door (9).

Images