Multi-stage filtering device with anti-blocking structure

Abstract

The utility model discloses a multistage filtering device with an anti-blocking structure, which relates to the technical field of sewage treatment and comprises a treatment box, a sewage inlet joint and a drainage joint are respectively arranged on the upper side and the lower side of one end of the treatment box, and a dosing joint and a sewage discharge joint are respectively arranged on the front side and the bottom end of the treatment box. A lower pressing frame and stirring fan blades are vertically distributed in the treatment box, the lower pressing frame is divided into an upper layer and a lower layer, each layer is provided with a filter pressing net, the top of the lower pressing frame is connected with a driving mechanism, and the bottom of the lower pressing frame is connected with an anti-blocking mechanism. In the cleaning process of the brush, part of impurities can be broken and possibly penetrate through the lower-layer filter pressing net, and at the moment, the upper-layer filter pressing net can effectively prevent the impurities from escaping, so that the phenomenon that sewage impurities escape to the upper part of the filter pressing net in the downward pressing process of the filter pressing net is effectively prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a multi-stage filtering device with an anti-blocking structure. Background Technique

[0002] Textile dyes include acid dyes, reactive dyes, disperse dyes, etc. Among them, disperse red is a relatively large variety in the disperse dye red series. It can be mixed with disperse rubine 2GFL, and has the characteristics of high strength, good light fastness, sweat fastness and rubbing (color) fastness. Sewage is generated during the production of disperse red, and this sewage needs to be treated before being discharged. Usually, chemical reagents such as polyaluminum chloride (PAC), aluminum sulfate, calcium hydroxide or polyacrylamide (PAM) are added to the sewage, and then stirring reaction is carried out to form flocs and then precipitation.

[0003] Patent (202321257882.0) discloses a dye sewage treatment system, including a treatment tank, a bracket, a tank cover and a stirring member. The bracket is fixedly connected to the four corners of the bottom of the treatment tank, the tank cover is clamped to the top of the treatment tank, the stirring member is fixedly connected to the inside of the tank cover, one end of the treatment tank is communicated with a sewage inlet joint, the top and bottom of the other end of the treatment tank are respectively communicated with a chemical agent adding joint and a drainage joint, the bottom of the treatment tank is communicated with a sludge joint, and pressure filtration mechanisms are fixedly connected to both sides of the inner wall of the treatment tank, which solves the problem that various chemical agents are added to the sewage during the existing dye sewage treatment. After adding polyacrylamide, that is, the flocculant, stirring is required, so that the impurities in the dye sewage agglomerate and then sink to the bottom. The stirred sewage will rotate, resulting in slower sinking to the bottom and affecting the subsequent sewage treatment efficiency.

[0004] When the above-mentioned patented equipment is running, the connecting rod is always immersed in the dye wastewater, and the dye wastewater has certain corrosiveness. Long-term immersion will cause the performance of the connecting rod to deteriorate, thereby affecting the normal operation of the equipment. Content of the Utility Model

[0005] The purpose of the utility model is to provide a multi-stage filtering device with an anti-blocking structure to solve the problems raised in the above background technique.

[0006] To solve the above technical problems, the present utility model provides the following technical solution: A multi-stage filtering device with an anti-blocking structure, including a treatment tank. On the upper and lower sides of one end of the treatment tank, a sewage inlet joint and a drainage joint are respectively connected. On the front side and the bottom end of the treatment tank, a chemical dosing joint and a sewage discharge joint are respectively connected. Inside the treatment tank, a pressing frame and stirring fan blades are distributed up and down. The pressing frame is divided into upper and lower layers, and each layer is provided with a pressing filter screen. The top of the pressing frame is connected with a driving mechanism, and the bottom of the pressing frame is connected with an anti-blocking mechanism. The driving mechanism includes four driving rods, a convex plate and a cylinder. The four driving rods are vertically and fixedly connected to the four corners of the top end of the pressing frame. The end of the driving rod away from the pressing frame penetrates through the top end inner wall of the treatment tank and extends to the outside. The bottom end of the convex plate is fixedly connected to the top ends of the four driving rods. The cylinder is vertically and fixedly connected to the back of the treatment tank, and the output end of the cylinder is fixedly connected to the bottom end of the convex plate.

[0007] Furthermore, the anti-blocking mechanism includes four fixing blocks, two stabilizing rods, a cleaning rod and a brush. The four fixing blocks are respectively fixedly connected to the four corners of the bottom end of the pressing frame. The cleaning rod is longitudinally arranged below the pressing frame. A brush is arranged at the top end of the cleaning rod, and the brush abuts against one of the pressing filter screens. The two stabilizing rods are located on the front and back sides below the pressing frame. Both ends of each stabilizing rod are respectively fixedly connected to the opposite inner sides of two of the fixing blocks. The cleaning rod is slidably connected to the two stabilizing rods.

[0008] Furthermore, the anti-blocking mechanism further includes a first motor, a driving wheel, a connecting rope, two first fixed pulleys and two second fixed pulleys. The first motor is vertically and fixedly connected to the top end of the convex plate. The output end of the first motor penetrates through the top end of the convex plate and extends to the lower part of the convex plate. The top end of the driving wheel is fixedly connected to the output end of the first motor. The two first fixed pulleys are respectively fixedly connected to the left and right sides of the bottom end of the convex plate. The two second fixed pulleys are respectively fixedly connected to the left and right sides of the bottom end of the pressing frame. The connecting rope is wound around the inside of the driving wheel, and both ends of the connecting rope respectively slide through the treatment tank and the pressing frame and are fixedly connected to the left and right ends of the cleaning rod. The surface of the connecting rope is slidably connected to the surfaces of the first fixed pulley and the second fixed pulley.

[0009] Furthermore, a plurality of conical scraping plates are arranged at the bottom end of the pressing frame and the top end inner wall of the treatment tank, and each conical scraping plate is respectively sleeved on the surfaces of the connecting rope and the driving rod.

[0010] Furthermore, the pores of the two pressing filter screens gradually decrease from bottom to top, and the four ends of the pressing frame are slidably connected to the inner wall of the treatment tank.

[0011] Furthermore, a second motor is vertically and fixedly connected to the bottom end of the treatment tank, and the output end of the second motor penetrates through the bottom end of the treatment tank and is fixedly connected to the axis of the stirring fan blade.

[0012] Compared with the prior art, the beneficial effects achieved by the present utility model are as follows:

[0013] 1. By setting a driving mechanism, through the cooperation of a cylinder, a convex plate, and four driving rods, the pressure filter screen presses down the flocculated impurities in the sewage, causing the impurities to quickly sink to the bottom, accelerating the process of impurity sedimentation, thereby improving the overall treatment efficiency. Compared with the above-mentioned comparative patent, in the present utility model, when the driving mechanism is in the unstarted state, the four driving rods are located above the sewage inlet joint and the chemical addition joint, so they will not always be in contact with the sewage. At the same time, during the startup process, multiple conical scraping plates can effectively scrape the corrosive sewage on the driving rods, thereby extending the service life of the equipment.

[0014] 2. By setting an anti-blocking mechanism, when the driving mechanism drives the pressure filter screen to move downward through the pressing frame, the impurities in the sewage will cover the lower-layer pressure filter screen and cause blockage, which is very likely to cause a large amount of impurities to escape to the upper part of the pressure filter screen. At this time, by starting the first motor to drive the driving wheel to rotate forward and backward, the driving wheel drives the connecting rope to achieve the retracting and releasing actions, so that the connecting rope drives the cleaning rod to move reciprocally along the direction of the stabilizing rod, thereby realizing the cleaning work of the lower-layer pressure filter screen by the brush, effectively solving the blockage phenomenon of the lower-layer pressure filter screen.

[0015] 3. By setting two layers of pressure filter screens and the pores of the two pressure filter screens gradually decreasing from bottom to top, during the cleaning process of the brush, some impurities will be broken, and it is possible that a small part of the impurities will pass through the lower-layer pressure filter screen. At this time, the upper-layer pressure filter screen can effectively prevent the impurities from escaping, thereby effectively preventing the sewage impurities from escaping to the upper part of the pressure filter screen during the downward pressing process of the pressure filter screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings are used to provide a further understanding of the present utility model and constitute a part of the specification. They are used together with the embodiments of the present utility model to explain the present utility model and do not constitute a limitation to the present utility model. In the drawings:

[0017] Figure 1 is the overall structural schematic diagram of the present utility model;

[0018] Figure 2 is the sectional structural schematic diagram of the overall mechanism in the present utility model;

[0019] Figure 3 is the structural schematic diagram of the driving mechanism in the present utility model;

[0020] Figure 4 is the structural schematic diagram of the anti-blocking mechanism in the present utility model.

[0021] In the figure: 1, treatment box; 2, sewage inlet connector; 3, drainage connector; 4, chemical addition connector; 5, anti-blocking mechanism; 50, fixing block; 51, stabilizing rod; 52, cleaning rod; 53, brush; 54, first motor; 55, driving wheel; 56, connecting rope; 57, first fixed pulley; 58, second fixed pulley; 6, pressing frame; 7, sewage discharge connector; 8, pressing filter screen; 9, driving mechanism; 90, driving rod; 91, convex plate; 92, cylinder; 10, stirring fan blade; 11, second motor; 12, conical scraper. Specific implementation mode

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] As Figure 1 and Figure 2 shown, a multi-stage filtering device with an anti-blocking structure includes a treatment box 1. The upper and lower sides of one end of the treatment box 1 are respectively communicated with a sewage inlet connector 2 and a drainage connector 3. The front side and the bottom end of the treatment box 1 are respectively communicated with a chemical addition connector 4 and a sewage discharge connector 7. A pressing frame 6 and a stirring fan blade 10 are distributed up and down inside the treatment box 1. The pressing frame 6 is divided into two layers up and down, and each layer is provided with a pressing filter screen 8. The top of the pressing frame 6 is connected with a driving mechanism 9, and the bottom of the pressing frame 6 is connected with an anti-blocking mechanism 5. The pores of the two pressing filter screens 8 gradually decrease from bottom to top. The four ends of the pressing frame 6 are slidably connected with the inner wall of the treatment box 1. The bottom end of the treatment box 1 is vertically and fixedly connected with a second motor 11. The output end of the second motor 11 penetrates through the bottom end of the treatment box 1 and is fixedly connected with the axis of the stirring fan blade 10. Through the arrangement of the two pressing filter screens 8, the phenomenon of impurity escape can be effectively prevented. In the initial state, the pressing frame 6 is located above the sewage inlet connector 2 and the chemical addition connector 4.

[0024] As shown in the attached Figure 3 figure, a multi-stage filtering device with an anti-blocking structure, the driving mechanism 9 includes four driving rods 90, a convex plate 91 and a cylinder 92. The four driving rods 90 are vertically and fixedly connected to the four corners of the top end of the pressing frame 6. The end of the driving rod 90 away from the pressing frame 6 penetrates through the top end inner wall of the treatment box 1 and extends to the outside. The bottom end of the convex plate 91 is fixedly connected with the top ends of the four driving rods 90. The cylinder 92 is vertically and fixedly connected to the back of the treatment box 1, and the output end of the cylinder 92 is fixedly connected with the bottom end of the convex plate 91.

[0025] The convex plate 91 is driven by the cylinder 92 to move up and down reciprocally. The convex plate 91 drives the lower pressing frame 6 to move reciprocally through four driving rods 90. The lower pressing frame 6 drives the pressing filter screen 8 to move up and down reciprocally, so as to realize that the pressing filter screen 8 presses down the flocculated impurities in the sewage, making the impurities sink to the bottom quickly, accelerating the process of impurity sedimentation, and thus improving the overall treatment efficiency.

[0026] As shown in the attached Figure 4 A multi-stage filtering device with an anti-blocking structure is shown. The anti-blocking mechanism 5 includes four fixing blocks 50, two stabilizing rods 51, a cleaning rod 52 and a brush 53. The four fixing blocks 50 are respectively fixedly connected to the four corners at the bottom end of the lower pressing frame 6. The cleaning rod 52 is longitudinally arranged below the lower pressing frame 6. A brush 53 is arranged at the top end of the cleaning rod 52. The brush 53 abuts against one of the pressing filter screens 8. The two stabilizing rods 51 are located on the front and rear sides below the lower pressing frame 6. Both ends of each stabilizing rod 51 are respectively fixedly connected to the opposite inner sides of two of the fixing blocks 50. The cleaning rod 52 is slidably connected to the two stabilizing rods 51. The anti-blocking mechanism 5 further includes a first motor 54, a driving wheel 55, a connecting rope 56, two first fixed pulleys 57 and two second fixed pulleys 58. The first motor 54 is vertically and fixedly connected to the top end of the convex plate 91. The output end of the first motor 54 penetrates through the top end of the convex plate 91 and extends below the convex plate 91. The top end of the driving wheel 55 is fixedly connected to the output end of the first motor 54. The two first fixed pulleys 57 are respectively fixedly connected to the left and right sides at the bottom end of the convex plate 91. The two second fixed pulleys 58 are respectively fixedly connected to the left and right sides at the bottom end of the lower pressing frame 6. The connecting rope 56 is wound around the inside of the driving wheel 55, and both ends of the connecting rope 56 respectively slide through the processing tank 1 and the lower pressing frame 6 and are fixedly connected to the left and right ends of the cleaning rod 52. The surface of the connecting rope 56 is respectively slidably connected to the surfaces of the first fixed pulley 57 and the second fixed pulley 58. A plurality of conical scraping plates 12 are arranged at the bottom end of the lower pressing frame 6 and the top end of the inner wall of the processing tank 1. Each conical scraping plate 12 is respectively sleeved on the surfaces of the connecting rope 56 and the driving rod 90. Through the arrangement of the conical scraping plates 12, the impurities attached to the connecting rope 56 can be effectively scraped off, and the sewage on the surface of the driving rod 90 can also be effectively scraped off. The connecting rope 56 is specifically a carbon fiber rope with extremely strong corrosion resistance.

[0027] During the process of the lower pressing frame 6 driving the pressing filter screen 8 to move downward, the impurities in the sewage will cover the lower-layer pressing filter screen 8, causing a blocking phenomenon, and it is very easy for more impurities to escape above the pressing filter screen 8. At this time, by starting the first motor 54 to drive the driving wheel 55 to rotate clockwise or counterclockwise, the driving wheel 55 drives the connecting rope 56 to realize the winding and unwinding action, so that the connecting rope 56 drives the cleaning rod 52 to move reciprocally along the direction of the stabilizing rod 51, so as to realize the cleaning work of the brush 53 on the lower-layer pressing filter screen 8, and thus effectively solve the blocking phenomenon of the lower-layer pressing filter screen 8.

[0028] Working principle of the utility model: Sewage and chemical reagents are discharged into the treatment tank 1 through the sewage inlet joint 2 and the chemical agent inlet joint 4 in sequence. Subsequently, the second motor 11 is started to drive the stirring fan blade 10 to stir, so that the impurities in the dye sewage agglomerate. Then, the air cylinder 92 drives the driving rod 90 to move downward through the convex plate 91, and the driving rod 90 drives the pressing frame 6 to move downward, so that the pressing filter screen 8 makes the impurities in the sewage concentrate at the bottom of the treatment tank 1, thereby realizing the rapid precipitation of sewage impurities. During the downward pressing process of the pressing filter screen 8, the impurities will cover the lower pressing filter screen 8 and cause blockage. In addition, the blockage of the lower pressing filter screen 8 and the downward movement of the pressing filter screen 8 are likely to cause the impurities to escape from the lower pressing filter screen 8. Therefore, during the downward pressing process of the pressing filter screen 8, the first motor 54 in the anti-blocking mechanism 5 rotates forward and backward indirectly to drive the cleaning rod 52 to move horizontally back and forth, so that the brush 53 cleans the lower pressing filter screen 8 to prevent blockage. During the cleaning process of the brush 53, some impurities will be broken, and it is possible that some impurities will pass through the lower pressing filter screen 8. At this time, the pores of the upper pressing filter screen 8 are smaller and can effectively prevent the impurities from escaping. When the driving mechanism 9 drives the pressing frame 6 to rise, the smaller impurities located between the two pressing filter screens 8 will move out of the lower pressing filter screen 8 as the pressing frame 6 rises.

[0029] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A multi-stage filtering device with an anti-blocking structure, comprising a processing box (1), characterized in that: The upper and lower sides of one end of the treatment box (1) are respectively connected to a sewage inlet joint (2) and a drainage joint (3); the front side and the bottom of the treatment box (1) are respectively connected to a dosing joint (4) and a sewage discharge joint (7); a lower pressure frame (6) and a stirring fan blade (10) are distributed in the upper and lower parts of the treatment box (1); the lower pressure frame (6) is divided into two layers, each layer of which is equipped with a filter press (8); the top of the lower pressure frame (6) is connected to a driving mechanism (9); the bottom of the lower pressure frame (6) is connected to an anti-blocking mechanism (5); the driving mechanism The structure (9) comprises four driving rods (90), a convex plate (91) and a cylinder (92); the four driving rods (90) are vertically fixedly connected to the four corners of the top of the lower pressing frame (6); one end of the driving rod (90) away from the lower pressing frame (6) passes through the top of the inner wall of the processing box (1) and extends to the outside; the bottom end of the convex plate (91) is fixedly connected to the top of the four driving rods (90); the cylinder (92) is vertically fixedly connected to the back of the processing box (1) and the output end of the cylinder (92) is fixedly connected to the bottom end of the convex plate (91).

2. A multi-stage filtering device with an anti-blocking structure according to claim 1, characterized in that: The anti-blocking mechanism (5) comprises four fixed blocks (50), two stabilizing rods (51), a cleaning rod (52) and a brush (53); the four fixed blocks (50) are respectively fixedly connected to the four corners of the bottom end of the lower pressing frame (6); the cleaning rod (52) is longitudinally arranged below the lower pressing frame (6); a brush (53) is arranged at the top end of the cleaning rod (52); the brush (53) abuts against one of the filter screens (8); the two stabilizing rods (51) are located at the front and rear sides below the lower pressing frame (6); the two ends of each stabilizing rod (51) are respectively fixedly connected to the inner sides of two fixed blocks (50); and the cleaning rod (52) is slidably connected to the two stabilizing rods (51).

3. A multi-stage filtering device with an anti-blocking structure according to claim 2, characterized in that: The anti-blocking mechanism (5) further comprises a first motor (54), a driving wheel (55), a connecting rope (56), two first fixed pulleys (57) and two second fixed pulleys (58), wherein the first motor (54) is vertically fixedly connected to the top of the convex plate (91), an output end of the first motor (54) passes through the top of the convex plate (91) and extends to the bottom of the convex plate (91), the top of the driving wheel (55) is fixedly connected to the output end of the first motor (54), and the two first fixed pulleys (57) are connected to the first motor (54). ) are respectively fixedly connected to the left and right sides of the bottom end of the convex plate (91), the two second fixed pulleys (58) are respectively fixedly connected to the left and right sides of the bottom end of the lower pressure frame (6), the connecting rope (56) is wrapped around the inside of the driving wheel (55), and the two ends of the connecting rope (56) respectively slide through the processing box (1) and the lower pressure frame (6) and are fixedly connected to the left and right ends of the cleaning rod (52), and the surface of the connecting rope (56) is respectively slidably connected to the surface of the first fixed pulley (57) and the second fixed pulley (58).

4. The multi-stage filtering device with an anti-blocking structure according to claim 3, characterized in that: A plurality of conical scrapers (12) are arranged at the bottom end of the lower pressing frame (6) and the top end of the inner wall of the processing box (1), and each of the conical scrapers (12) is respectively sleeved on the surface of the connecting rope (56) and the driving rod (90).

5. The multi-stage filtering device with an anti-blocking structure according to claim 1, characterized in that: The pores of the two filter presses (8) gradually decrease from bottom to top, and the four ends of the lower pressing frame (6) are slidably connected to the inner wall of the processing box (1).

6. The multi-stage filtering device with an anti-blocking structure according to claim 1, characterized in that: A second motor (11) is vertically fixedly connected to the bottom end of the processing box (1); an output end of the second motor (11) passes through the bottom end of the processing box (1) and is fixedly connected to the axis of the stirring blade (10).

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