Novel precise filter cloth filtering drum filter tank

Abstract

The utility model discloses a novel precise filter cloth filtering rotary drum filter tank, which relates to the technical field of rotary drum filters, aims to solve the technical problems of short service life and high maintenance cost of filter meshes, and comprises a rotary drum machine shell, a driving shaft is rotatably connected to one side of the rotary drum machine shell, and a driving structure is arranged on the periphery of the driving shaft. One end of the driving shaft penetrates through the drum machine shell and is connected with a rotating frame, a plurality of filter screens are arranged on the peripheral area of the rotating frame, the filter screens are formed by weaving nylon materials, positioning structures fixed to the rotating frame are arranged on the peripheries of the filter screens, the positioning structures fix the filter screens, and a plurality of anti-deformation structures are arranged on the inner sides of the positioning structures. According to the utility model, the nylon filter screen is used for replacing a metal filter screen, the liquid inlet is necked down, and the pins at a plurality of positions and the filter screen are limited, so that the filter has the advantages of strong water permeability, firmness, durability, low improvement cost and lower maintenance cost, and meanwhile, the capacity of resisting deformation under high pressure is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rotary drum filters, and more specifically to a novel precision filter cloth filter rotary drum filter. Background Art

[0002] In the precision filter system at the back end of a high-efficiency sedimentation tank, treated sewage flows from the inlet tank into the drum, where it is filtered through a fine mesh and discharged from the bottom of the drum. Qualified water flows into the disinfection channel. However, in actual use, it has been found that the high-density stainless steel woven filter mesh is too dense and thin, often catching debris during operation. It is also prone to damage after prolonged exposure to water flow, resulting in a short lifespan. This requires frequent filter replacement, leading to frequent downtime, extensive maintenance work, and high mesh prices, resulting in extremely high maintenance costs and unreliable timeliness. In light of this, we propose a new precision cloth filter drum filter. Utility Model Content

[0003] The purpose of the utility model is to overcome the shortcomings of the existing technology, meet the actual needs, and provide a new type of precision filter cloth filter drum filter to solve the current technical problems of short service life and high maintenance cost of filter mesh.

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions: a new type of precision filter cloth filter drum filter, including a drum machine shell, one side of the drum machine shell is rotatably connected to a drive shaft, the outer periphery of the drive shaft is provided with a drive structure, one end of the drive shaft passes through the drum machine shell and is connected to a rotary frame, a plurality of filter screens are provided in the outer peripheral area of ​​the rotary frame, the filter screens are woven from nylon material, a positioning structure fixed to the rotary frame is provided on the outer periphery of the filter screen, the positioning structure fixes the filter screen, and a plurality of anti-deformation structures are provided on the inner side of the positioning structure.

[0005] Preferably, one side of the drum machine housing is connected to a liquid inlet pipe, and a water outlet is provided at the bottom of the drum machine housing.

[0006] Preferably, the driving structure includes a chain belt and two sprockets, the chain belt is arranged between the outer peripheries of the two sprockets, one of the sprockets is fixed to the drive shaft, and the center of the other sprocket is connected to a drive motor, and the drive motor is placed on an external platform.

[0007] Preferably, the positioning structure includes a stainless steel protective net and a stainless steel support net, a space for placing the filter net is opened between the stainless steel protective net and the stainless steel support net, a plurality of screw holes are opened on the sides of the stainless steel protective net and the stainless steel support net, and bolts are set on the inner periphery of the screw holes to fix the rotating frame.

[0008] Preferably, the anti-deformation structure includes a rectangular seat installed on the inner arc of the stainless steel support net, the rectangular seat is provided with a liquid inlet that is narrowed toward the stainless steel support net, the rectangular seat is connected to a liquid accumulation cavity near the liquid inlet, a high-pressure spray plate is slidingly limited on the inner periphery of the liquid accumulation cavity, and a plurality of liquid outlets are provided on the high-pressure spray plate.

[0009] Preferably, a plurality of pins are fixed to the side of the high-pressure spray plate close to the stainless steel support mesh, and a spring fixed to the high-pressure spray plate is provided on the outside of the pins.

[0010] Preferably, a filter plate is fixed to the liquid inlet port.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] 1. The utility model reduces the failure rate of gear abrasion and wear caused by frequent contact with water; and after the drive device is placed on top, it is much more convenient for personnel to maintain it, without having to go to the narrow space at the bottom of the pool for maintenance, which reduces safety risks. Nylon filter mesh is used instead of metal filter mesh. Since the filter mesh is woven from nylon material, it has more adjacent gaps, is highly permeable, durable, has low modification cost, strong operability, and low subsequent maintenance cost, thus solving the problems of short service life and high maintenance cost of filter mesh.

[0013] 2. The utility model also uses the connection between the rectangular seat and the stainless steel support mesh and the tapered design of the liquid inlet. When water is input, the pressure during infusion can be matched with the pressure of the infusion through the large-diameter through the small-diameter, which can generate pressure on the high-pressure spray plate, causing the high-pressure spray plate to move, and further allowing the pin to be inserted into the gap between the woven filter mesh. With the insertion limit at multiple positions, combined with the stainless steel protective mesh and the stainless steel support mesh to fix the nylon filter mesh, the deformation resistance of the filter mesh during high-pressure filtration is increased, further solving the problem that the woven filter mesh is prone to deformation and damage during high-pressure filtration. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the utility model;

[0015] Figure 2 This is a schematic diagram of a half-section structure of the present utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the present invention without the positioning structure and the filter screen;

[0017] Figure 4 This is a schematic diagram of the connection relationship between the positioning structure and the anti-deformation structure of the utility model;

[0018] Figure 5 This is a schematic diagram of the split structure of the positioning structure of the utility model;

[0019] Figure 6 This is a schematic structural diagram of the anti-deformation structure of the utility model;

[0020] Figure 7 This is a schematic diagram of a half-section structure of the anti-deformation structure of the present invention.

[0021] Explanation of the reference numbers in the figure: 1. Drum machine housing; 2. Drive shaft; 3. Drive structure; 4. Rotary frame; 5. Filter screen; 6. Positioning structure; 7. Anti-deformation structure; 8. Filter plate;

[0022] 301, chain belt; 302, sprocket; 303, drive motor;

[0023] 601, stainless steel protective net; 602, stainless steel support net;

[0024] 701, rectangular seat; 702, liquid inlet; 703, liquid accumulation chamber; 704, high-pressure spray plate; 705, liquid outlet; 706, pin; 707, spring. DETAILED DESCRIPTION

[0025] like Figures 1 to 7 As shown, the utility model relates to a novel precision filter cloth filtering drum filter tank, comprising a drum machine shell 1, one side of the drum machine shell 1 is connected with a liquid inlet pipe and a slag discharge pipe, a water outlet is provided at the bottom of the drum machine shell 1, a backwash nozzle is provided inside the drum machine shell 1, a backwash pump is provided on the outside of the drum machine shell 1, and the liquid outlet end of the backwash pump is connected to the backwash nozzle through a pipeline. In order to prevent water from entering the driving equipment, a driving shaft 2 is rotatably connected to one side of the drum machine shell 1, and a driving structure 3 is provided on the outer periphery of the driving shaft 2. The driving structure 3 includes a chain belt 301 and two sprockets 302. The chain belt 301 is sleeved between the outer peripheries of the two sprockets 302, one of the sprockets 302 is fixed to the driving shaft 2, and the center of the other sprocket 302 is connected to a driving motor 303. The driving motor 303 is placed on an external platform, and the backwash pump can be extended and placed on the external platform through a pipeline. After the driving device is placed on top, it is much more convenient for personnel to maintain it without having to go to the narrow space at the bottom of the pool for maintenance, which reduces safety risks.

[0026] In order to extend the service life and reduce maintenance costs, one end of the drive shaft 2 passes through the drum machine housing 1 and is connected to the rotary frame 4. A plurality of filter screens 5 are provided in the peripheral area of ​​the rotary frame 4. The filter screens 5 are woven from nylon. Since the filter screens 5 are woven from nylon, they have more adjacent gaps, are highly permeable, durable, have low modification costs, are highly operable, and have low subsequent maintenance costs.

[0027] In order to improve the deformation resistance of the filter screen 5, a positioning structure 6 fixed to the rotating frame 4 is provided on the outer periphery of the filter screen 5. The positioning structure 6 includes a stainless steel protective mesh 601 and a stainless steel support mesh 602. A space for placing the filter screen 5 is opened between the stainless steel protective mesh 601 and the stainless steel support mesh 602. The sides of the stainless steel protective mesh 601 and the stainless steel support mesh 602 are provided with multiple screw holes. The inner periphery of the screw holes is provided with bolts fixed to the rotating frame 4. The stainless steel protective mesh 601 and the stainless steel support mesh 602 can press and fix the two sides of the filter screen 5.

[0028] In order to further improve the anti-deformation ability, a plurality of anti-deformation structures 7 are provided on the inner side of the positioning structure 6. The anti-deformation structure 7 includes a rectangular seat 701 installed on the inner arc of the stainless steel support mesh 602. The rectangular seat 701 is provided with a liquid inlet 702 that is narrowed toward the stainless steel support mesh 602. A filter plate 8 is fixed to the end of the liquid inlet 702. The rectangular seat 701 is connected to a liquid accumulation chamber 703 near the liquid inlet 702. A high-pressure spray plate 704 is slidingly limited on the inner periphery of the liquid accumulation chamber 703. A plurality of liquid outlets 705 are provided on the high-pressure spray plate 704. A plurality of pins 706 are fixed to the side of the high-pressure spray plate 704 near the stainless steel support mesh 602. A spring 707 fixed to the high-pressure spray plate 704 is provided on the outside of the pin 706. By passing the large diameter through the small diameter to cooperate with the pressure during infusion, pressure can be generated on the high-pressure spray plate 704, causing the high-pressure spray plate 704 to move, and further causing the pins 706 to be inserted into the gaps woven by the filter mesh 5, thereby limiting the filter mesh 5.

[0029] Working principle: This embodiment provides a new type of precision filter cloth filter drum filter. When in use, sewage is input into the rotary frame 4 through the liquid inlet pipe. The pressure during the input process causes the sewage to pass through the stainless steel support mesh 602, the filter mesh 5, and the stainless steel protective mesh 601 in turn. Since the filter mesh 5 is woven from nylon material, it has more adjacent gaps, is highly permeable, and has low maintenance costs. The filtered sewage is discharged through the outlet. During the filtration process, part of the water passes through the filter plate 8 through the liquid inlet 702 and enters the liquid accumulation chamber 703. Through the constriction design of the liquid inlet 702, when the water is input, the pressure during the infusion through the large diameter through the small diameter can generate pressure on the high-pressure spray plate 704, causing the high-pressure spray plate 704 to move, and further inserting the pin 706 into the gap woven by the filter mesh 5. With the insertion limit at multiple positions, the deformation resistance of the filter mesh 5 during the filtration process is further improved. After filtering to a certain extent, backwashing is started to flush out the impurities on the filter mesh 5, and then the slag discharge pipe is opened to discharge the impurities.

[0030] The embodiments disclosed in the present invention are preferred embodiments, but are not limited to them. Ordinary technicians in this field can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. As long as they do not deviate from the spirit of the present invention, they are all within the scope of protection of the present invention.

Claims

1. A new type of precision filter cloth filter drum filter, characterized in that: The invention comprises a drum machine housing (1), wherein one side of the drum machine housing (1) is rotatably connected to a drive shaft (2), a drive structure (3) is provided on the periphery of the drive shaft (2), one end of the drive shaft (2) passes through the drum machine housing (1) and is connected to a rotary frame (4), a plurality of filter screens (5) are provided on the periphery of the rotary frame (4), the filter screens (5) are made of nylon material, a positioning structure (6) fixed to the rotary frame (4) is provided on the periphery of the filter screen (5), the positioning structure (6) fixes the filter screen (5), and a plurality of anti-deformation structures (7) are provided on the inner side of the positioning structure (6).

2. A novel precision filter cloth filter drum filter according to claim 1, characterized in that: One side of the drum machine housing (1) is connected to a liquid inlet pipe, and a water outlet is provided at the bottom of the drum machine housing (1).

3. A novel precision filter cloth filter drum filter according to claim 2, characterized in that: The driving structure (3) comprises a chain belt (301) and two sprockets (302), wherein the chain belt (301) is sleeved between the outer peripheries of the two sprockets (302), wherein one of the sprockets (302) is fixed to the driving shaft (2), and the center of the other sprocket (302) is connected to a driving motor (303), and the driving motor (303) is placed on an external platform.

4. The novel precision filter cloth filter drum filter according to claim 3 is characterized in that: The positioning structure (6) comprises a stainless steel protective net (601) and a stainless steel supporting net (602), a space for placing the filter net (5) is provided between the stainless steel protective net (601) and the stainless steel supporting net (602), and a plurality of screw holes are provided on the sides of the stainless steel protective net (601) and the stainless steel supporting net (602), and bolts for fixing to the rotating frame (4) are provided on the inner periphery of the screw holes.

5. The novel precision filter cloth filter drum filter according to claim 4 is characterized in that: The anti-deformation structure (7) comprises a rectangular seat (701) mounted on the inner arc of the stainless steel support mesh (602), the rectangular seat (701) being provided with a liquid inlet (702) that is narrowed in the direction of the stainless steel support mesh (602), the rectangular seat (701) being connected to a liquid accumulation cavity (703) near the liquid inlet (702), a high-pressure spray plate (704) being limitedly slidable on the inner periphery of the liquid accumulation cavity (703), and a plurality of liquid outlets (705) being provided on the high-pressure spray plate (704).

6. The novel precision filter cloth filter drum filter according to claim 5, characterized in that: A plurality of pins (706) are fixed to one side of the high-pressure spray plate (704) close to the stainless steel support mesh (602), and a spring (707) fixed to the high-pressure spray plate (704) is provided on the outside of the pins (706).

7. The novel precision filter cloth filter drum filter according to claim 6 is characterized in that: A filter plate (8) is fixed to the liquid inlet (702) port.

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