WO2020006774A1

WO2020006774A1 - Reciprocating reverse suction type fiber filter and sewage treatment method thereof

Info

Publication number: WO2020006774A1
Application number: PCT/CN2018/094981
Authority: WO
Inventors: 汪深
Original assignee: 湖南屎壳郎环境科技有限公司; 汪深
Priority date: 2018-07-02
Filing date: 2018-07-09
Publication date: 2020-01-09
Also published as: CN108975528A

Abstract

Disclosed are reciprocating reverse suction type fiber filter. A filter hole is symmetrically arranged between a sewage pool (2) and a filtrate pool (3), filter plates (5A, 5B) are mounted and fixed on the filter hole, sewage in the sewage pool (2) enters the filtrate pool (3) through filtering of the filter plates (5A, 5B), one side of the sewage pool (2) of the filter plates (5A, 5B) is provided with mud suckers (6A, 6B), and the mud suckers (6A, 6B) respectively perform lifting or transverse synchronous reverse mud suction movement under the action of a driving mechanism; when the filter plates (5A, 5B) are blocked, the sewage level of the sewage pool (2) rises, and when the sewage level of the sewage pool (2) reaches the liquid level set by the liquid level sensor (10), the mud suckers (6A, 6B) are controlled to be started to perform reverse suction on the mud on the filter plates (5A, 5B); meanwhile, the driving mechanism is started to drive two groups of mud suckers (6A, 6B) to respectively perform lifting or transversely synchronously reverse mud suction displacement, the mud on the filter plates (5A, 5B) is thus sucked away, and the filtering capacity of the filter plates (5A, 5B) are restored. Further disclosed is a sewage treatment method of the reciprocating reverse suction type fiber filter.

Description

Reciprocating anti-suction fiber filter and sewage treatment method thereof

Technical field:

The invention relates to sewage treatment technology in the field of environmental protection, and particularly to a round-trip anti-suction fiber filter and a sewage treatment method thereof.

Background technique:

China's water shortage situation has gradually emerged since the 1980s. With the passage of time, its situation has been increasing year by year. In order to solve the problem of water shortage, it is necessary to adopt both throttling and open source measures. Open source uses measures such as long-distance water transfer, seawater utilization, and sewage resource utilization. However, the cost of long-distance water diversion and seawater utilization is relatively high. Relatively speaking, the utilization of sewage resources is a more economical way.

The State Environmental Protection Administration promulgated and implemented the “Emission Standards for Pollutants from Urban Sewage Treatment Plants” (GB18918-2002) in 2006, which imposed stricter requirements on the effluent discharge from urban sewage treatment plants, and therefore proposed higher treatment processes and equipment. Claim.

At present, there are several methods of sewage filtration, including deep bed filtration, surface filtration, and membrane filtration. Among them, deep bed filtration has the disadvantages of large floor space and high capital investment. Membrane filtration has high costs, easy pollution, and high maintenance costs. Relatively speaking, Surface filtration is a more preferred process. Filter cloth filtration is currently a high-efficiency and more economical treatment method.

Fiber rotary disc filter is a typical surface filtration equipment, which has the obvious characteristics of low operating cost, good and stable effluent quality, and small footprint. However, there are still some obvious shortcomings of fiber rotary disc filter:

1. The bottom bracket requires high accuracy and high cost: Since the bottom bracket is the fixed reference for all filter plates, it requires very high accuracy and strength, and because it is exposed to sewage for a long time, its anticorrosion requirements are relatively high, and its processing And the cost of materials is high, the length of the central shaft is also limited, so it also seriously affects the cost of the fiber rotary disc filter;

2. High disc processing cost: Most discs are made of high-strength nylon. Due to the special shape of the disc, each specification needs to be customized. At the same time, the disc and the center shaft and the disc and the disc need to be customized. The required coordination accuracy requires high production accuracy and high processing costs, so it also seriously affects the cost of the fiber rotary disc filter;

3. Uneven wear in the radial direction of the filter cloth causes waste: due to the large difference in the linear speed of suction along the radius of the filter disk during the reverse suction process, the suction is uneven, and the filter cloth is abraded and worn. It is not uniform, and the local damage causes the whole replacement, which also increases the operating cost of the fiber disc filter.

Summary of the invention:

The purpose of the present invention is to provide a round-trip anti-suction fiber filter and its sewage treatment method, which can solve the problems of complicated structure, difficult manufacturing and high cost of fiber rotary disc filter, realize low cost of sewage treatment equipment, and sewage treatment. Large capacity, good sewage treatment effect.

The technical scheme adopted by the present invention is:

A sewage treatment method for a round-trip anti-suction fiber filter, a filter hole is symmetrically arranged between the sewage tank and the filtrate tank, and a filter plate is installed and fixed on the filter hole. The sewage in the sewage tank enters the filtrate through the filter plate. In the pond, a mud suction device is provided on the side of the sewage tank of the filter plate. The mud suction device performs lifting or horizontal mud suction movement under the action of the driving mechanism. When the filter plate is blocked, the sewage level of the sewage pool rises, and the sewage When the sewage level in the pond reaches the level set by the liquid level sensor, the control starts the mud suction device to back-suction the sludge on the filter plate, and simultaneously starts the driving mechanism to drive the mud suction device to perform lifting or horizontal mud suction displacement. , Suction the sludge on the filter plate, so that the filter plate can recover the filtering ability again.

A round-trip anti-suction fiber filter comprises a sewage tank, a filtrate tank, a filter plate, a mud sucker and a driving mechanism. The sewage tank is connected to the filtrate tank, and a filter hole is formed at the connection between the sewage tank and the filtrate tank. A filter plate is installed and fixed on the side of the sewage tank of the filter plate, and a mud suction device is provided correspondingly. The mud suction device is abutted against the filter plate, and the mud suction device is connected to the driving mechanism, and is driven by the driving mechanism to perform lifting or horizontal synchronous reverse. Suction displacement.

In the above technical solution, the filter plate is one or more; the filter holes are also one or more; the mud suction device is one or more; each filter hole is correspondingly installed with a filter plate, The filter plate corresponds to the aspirator.

In the above technical solution, the driving mechanism includes a lifting mechanism, a slope is provided at the bottom of the sewage tank, a sedimentation sludge pump is arranged in the sewage tank, and an inlet end of a suction pipe of the sedimentation sludge pump is placed at the bottom of the sewage tank.

In the above technical solution, the lifting mechanism includes a load-bearing frame, a lifting driving device, a pulley and a pull rope. The load-bearing frame is a door frame structure, and both ends of the load-bearing frame are respectively fixed and fixed on the pool body on both sides of the sewage tank. The device is installed at the center position of the crossbeam of the load-bearing frame. The lifting driving device is connected to the pull rope. The two ends of the pulling rope pass through two pulleys to connect with the two sets of mud suction devices. The pulling rope is pulled by the lifting drive mechanism. The group of mud suckers do synchronous reverse lifting movements one by one.

In the above technical solution, the filter plate includes a filter cloth and a filter cloth support, the filter cloth is fixed on the filter cloth support, and a plane on which the filter cloth support and the filter cloth are bonded is a grid structure.

In the above technical solution, the suction device includes a suction pump, a suction head, a suction pipe and a suction nozzle. The suction pump is connected to the suction head through the suction pipe, and the suction head is close to a filter cloth. Several suction nozzles are evenly arranged on the side, the suction nozzle is close to the filter cloth, and its suction range covers the filter cloth; the highest position of the suction head is equal to or slightly higher than the upper edge of the filter plate, and the lowest position of the suction head is equal to or slightly Below the lower edge of the filter plate.

In the above technical solution, lifting guide wheels are installed at both ends of the suction head of the mud suction device, and correspondingly, vertical lifting guides are provided at both ends of the suction head of the sewage tank, and the lifting and lowering ends of the suction head are provided. The guide wheel is sleeved in the lifting guide.

In the above technical solution, a liquid level sensor is provided on the upper part of the sewage tank, and a limit sensor for limiting the stroke of the suction device is installed on the upper part of the lifting guide rail.

In the above technical solution, the driving mechanism includes a lateral driving mechanism. The lateral driving mechanism includes a lateral moving force, a pulley group, and a pull rope. The lateral moving force is installed and fixed on one side of the sewage tank, and the pulley group is fixed on the pool wall of the sewage tank. The pulling rope bypasses the horizontal moving force. The two ends of the pulling rope pass through the pulleys of the pulley group and are connected to the horizontal ends of the suction unit. The pulling rope is driven by the horizontal moving force to carry the horizontal and reciprocating movement of the suction unit. .

In the above technical solution, the end of the suction head of the mud suction device is provided with a traverse guide wheel, and correspondingly, traverse guide rails are respectively provided at the upper and lower horizontal portions of the sewage tank, The traverse guide wheel is sleeved in the traverse guide.

In the above technical solution, a liquid level sensor is provided on the upper part of the sewage tank, and a limit sensor for limiting the stroke of the suction device is installed at the end of the lateral guide rail.

In the above technical solution, a water inlet tank is connected to a front end of the sewage tank, and a water outlet tank is connected to a rear end of the filtrate tank. An outlet weir is provided between the filtrate tank and the water outlet tank, and the liquid level of the filter tank is lower than that of the sewage tank. And the upper edge of the filter hole is located below the liquid level in the filtrate tank.

working principle:

The round-trip anti-suction fiber filter according to the present invention mainly includes a sewage tank, a filtrate tank, a filter plate, a suction device, a driving mechanism, a traverse guide or a lifting guide, a limit sensor, a liquid level sensor, a sedimentation sludge pump, and other parts. ; The sewage pond is a rectangular structure, and a slope is set at the bottom of the sewage pond to concentrate the sludge to facilitate the suction and cleaning. The rear end of the sewage pond is connected to a filtrate pond, and a plurality of horizontally arranged between the filtrate pond and the sewage pond. Filter holes, each filter hole is the same size and size, all filter holes can be set in the horizontal direction; filter plates are installed and fixed at the front of the filter holes, and the filter holes are completely sealed, so that sewage can only be filtered through the filter plate In order to enter the filtrate tank through the filter hole.

The round-trip anti-suction fiber filter of the present invention has two embodiments: one is a round-trip lifting anti-suction fiber filter, and the other is a round-trip lateral anti-suction fiber filter. The working principles of the methods are explained separately:

A sewage treatment method for a round-trip anti-suction fiber filter. The round-trip anti-suction fiber filter adopts a round-trip lifting anti-suction fiber filter. All filter holes are symmetrically arranged in two groups along the horizontal direction. The front end of each filter plate is provided with a set of mud suction devices. Under the limitation of the lifting guide rail and the driving action of the lifting mechanism, the mud suction head is flush with the filter plate and abuts against the front of the filter cloth. Its movement trajectory is parallel to the filter plate. The suction head sucks away the sludge attached to the filter cloth. The structure of the two suction devices is the same, the length of which is equal to or slightly larger than the horizontal width of the filter plate, and in the vertical direction. It coincides with the central plane of the filter plate; the lifting mechanism is installed and fixed above the sewage tank, and the two ends of its pull rope are connected to two sets of mud suction devices respectively, which drives the mud suction device to move up and down, and the movement of the two mud suction devices is Synchronous reverse; lifting guides are set at both ends of the suction device, and the suction device can share the intermediate lifting guide. The main function of the lifting guide is to cooperate with the roller at the end of the suction device to do the lifting movement of the suction device. Guide and Limiting action makes the movement trajectory of the suction device parallel to the plane of the filter, and keeps the suction nozzle of the suction device and the filter plate at an appropriate distance; the limit sensor is set on the top of the middle lifting guide, The lifting stroke of the device acts as a limit. In the process of lifting the suction device, no matter which suction device on the other side touches the limit sensor, the lifting driving device stops moving and waits for the next anti-suction instruction to be sent. The device moves in the opposite direction, and the movements of the two mud suction devices move in the opposite direction. The liquid level sensor is installed and fixed on the sewage tank. Its role is to detect the liquid level of the sewage tank to indirectly determine the clogging of the filter cloth. When the liquid level sensor detects When the liquid level in the sewage tank exceeds the warning line, it can be considered that the filter cloth has a serious blockage, and the sludge on the filter cloth needs to be cleaned. At this time, the suction pump of the mud suction device is started to start the filter cloth. The sludge is back-suctioned and the lifting mechanism is activated at the same time, which drives the two suction devices to move up and down at a uniform speed until the suction device touches the limit sensor, then the lifting mechanism and the suction device are stopped. The sludge suction pump completes the comprehensive cleaning of the sludge on the entire filter cloth; the sedimentation sludge pump is installed on the sewage tank, and its suction pipe extends to the lowest point of the sewage tank, which can regularly deposit the bottom of the sewage tank. Sludge is drawn out to prevent sludge from accumulating.

A sewage treatment method for a round-trip anti-suction fiber filter, the round-trip anti-suction fiber filter adopts a round-trip lateral anti-suction fiber filter, and a series of filter holes are arranged between the sewage tank and the filtrate tank, Each filter hole has the same size and the same height. A filter plate is installed and fixed on each filter hole. The sewage in the sewage tank enters the filtrate tank through the filtration of the filter plate. A set of mud suction devices are evenly arranged at the front of the filter plate. The structure of all the suction devices is the same. Each suction device is connected in a straight line and is evenly arranged in the horizontal direction. Under the action of the driving mechanism, it performs synchronous back and forth movement. When the filter plate is blocked, the level of the sewage tank rises. When the level of the sewage tank reaches the set height, the suction pump of the mud suction device is started, and the sludge on the filter plate is back-suctioned. At the same time, the driving mechanism with the mud suction device is started to perform synchronous lateral movement, while filtering The sludge on the plate is sucked away, so that the filter plate can recover the filtering ability again.

A back-and-forth horizontal anti-suction fiber membrane filter comprises a sewage tank, a filtrate tank, a plurality of sets of filter plates, a mud suction unit, a driving mechanism, two lateral guide rails, a limit sensor, a liquid level sensor, and sedimentary sludge In the pump and other parts, the sewage tank is provided with a slope at the bottom to concentrate the sediment sludge and facilitate the suction and cleaning. The rear end of the sewage tank is connected to the filtrate tank. m≥1) filter holes, each filter hole has the same size and size, and the same position in the height direction; a filter plate is installed and fixed at the front of each filter hole, the filter plate completely seals the filter hole, so that the sewage is only After filtering through the filter plate, it can enter the filtrate tank through the filter hole. The mud suction unit is set at the front of the filter plate. Its suction head is flush with the filter plate and is in front of the filter cloth. The sludge on the filter cloth is sucked away, and the length of the suction head is equal to or slightly larger than the vertical height of the filter plate, and it coincides with the central plane of the filter plate in the horizontal direction; the driving mechanism is installed and fixed on the sewage tank, and its The two ends of the rope are respectively connected to the two ends of the suction unit, which drives the suction unit to move back and forth laterally; two lateral guide rails are respectively arranged on the upper and lower sides of the suction unit, and are arranged horizontally. The main function of the lateral guide rails is By cooperating with the roller at the end of the suction device, it can guide and limit the lateral movement of the suction device, make the movement track of the suction device parallel to the plane of the filter, and make the suction nozzle of the suction device and the filter The board keeps a proper distance; the limit sensors are set at the two ends of the traverse rail respectively, which limit the lateral stroke of the suction device. During the horizontal movement of the suction device, no matter which side the suction device touches Limit sensor, the drive mechanism stops moving, waiting for the next anti-suction instruction, the drive mechanism moves in reverse, and the suction unit also moves in reverse; the liquid level sensor is installed and fixed on the sewage tank, and its role is to detect The liquid level of the sewage tank is used to indirectly determine the clogging of the filter cloth. When the liquid level sensor detects that the liquid level in the sewage tank exceeds the warning line, it can be considered that the filter cloth has a serious blockage and the dirt on the filter cloth needs to be The mud is cleaned up. At this time, the mud pump of the mud suction device is started to start the anti-suction of the sludge on the filter cloth. At the same time, the driving mechanism is started, which drives the mud suction group to move horizontally and uniformly until the mud suction device touches The limit sensor stops the dredging pump of the driving mechanism and the dredger to complete the comprehensive cleaning of the sludge on the entire filter cloth. The sedimentation sludge pump is installed on the sewage tank, and its suction pipe extends to the lowest level of the sewage tank. Point, it can regularly pull out the sludge deposited at the bottom of the sewage tank to prevent sludge deposition.

In the above solution, the filter plate is composed of a filter cloth and a filter cloth support. The filter cloth is the working part of the filter. The material is usually but not limited to the use of dense fiber filter cloth, which is fixed on the filter cloth support; the filter cloth support is the skeleton of the entire filter plate, which provides support for the filter cloth and ensures adhesion. The filter cloth on it is kept flat. The material supported by the filter cloth can be, but is not limited to, high-strength nylon, glass fiber reinforced plastic, or stainless steel. The plane that fits the filter cloth is a grid structure, which can ensure the necessary support strength without Affects the filtering area of the filter cloth.

In the above scheme, the mud sucker group is formed by n (n≥1) mud suckers connected in series in the horizontal direction by a connecting rope. All the mud suckers have the same structure and the same size and are uniform in the horizontal direction. Distribution, the distance between two pairs is equal, and the distance between them is the working length of each suction device.

In the above scheme, the suction device is mainly composed of a suction head, a suction pump, a suction pipe and a traverse guide wheel group. The suction head is its working part, which is located at the front end of the filter plate. The side of the suction head close to the filter cloth is uniformly arranged with a plurality of suction nozzles in the vertical direction. The suction nozzle is abutted on the filter cloth, and its suction suction The scope just covers the filter cloth completely in the vertical direction; the suction pump is a power unit for anti-suction, which is installed on the sewage tank and connected to the suction head through the suction pipe; one end of the suction pipe is connected to the suction pump The other end of the water inlet is connected to the back of the suction head. Each suction device can be provided with multiple suction pipes and evenly distributed along the length of the suction head. The traverse guide wheels are respectively set on the suction head of the suction head. At both ends, it cooperates with the traverse guide to guide and limit the lateral movement of the suction device; in order to prevent the suction device from blocking the filter cloth and reduce the filtering area, the suction device The initial position is flush with the vertical border to the left or right of the filter plate.

Further, for the case where the height of the filter plate is relatively large, the suction head is relatively long. At this time, a suction pump may not effectively ensure the overall suction effect. At this time, multiple suction pumps may be set. The specifications and models are consistent and interchangeable, and their corresponding suction lengths are also the same.

In the above technical solution, the driving mechanism is a power device for laterally reciprocating movement of the suction unit, which is composed of a horizontal drive, a pulley unit, and a pull rope. The traverse drive is fixedly installed on one side of the sewage tank. It usually adopts but is not limited to the use of a winch mechanism, which can realize the forward and reverse output. The pulley set includes several pulleys, which are fixed on the wall of the sewage tank respectively. Through the traverse drive, the two ends of the pulley set are respectively connected to the two ends of the suction unit, which can be driven by the traverse drive to carry the horizontal and reciprocating movement of the suction unit.

For a small sewage treatment system, the filtering area is not large, so it can be provided with only one filter hole, a filter plate is set on the filter hole, a mud suction device is set at the front of the filter plate, and the suction nozzle on the suction head is on the filter plate. It is evenly distributed in the height range to ensure that the mud suction range completely covers the filter cloth in the vertical direction.

Significant effect:

The fiber membrane filter of the invention not only has all the advantages of the fiber rotary disc filter, but also has the following advantages over the fiber rotary disc filter:

I. No bottom bracket, no bottom bracket processing required, simple structure, easy manufacturing and installation, and low cost;

Second, the filter plate is rectangular, corresponding to the suction device, the suction speed is the same in each position during the reverse suction process, so the wear of the filter cloth is uniform, which can effectively extend the service life of the filter cloth and save operating costs. ;

3. The filter cloth has a rectangular structure, which does not require special cutting or customization, no waste, and low cost;

Fourth, it realizes the comprehensive backwashing of filter cloth by moving the suction device. Because the quality of the suction device is much smaller than that of the rotary table, and its suction device is symmetrically arranged and equal in weight, its driving power is much smaller than that of the fiber rotary table filter. Low consumption

Fifth, the filter plate support is a rectangular structure, and products of common specifications and sizes on the market can be selected without special customization and manufacturing costs.

low;

Brief description of the drawings:

1 is a plan view of a structure according to an embodiment of the present invention;

Figure 2 is a view A-A of Figure 1;

Figure 3 is a B-B view of Figure 1;

4 is a schematic structural diagram of a filter plate according to an embodiment of the present invention;

Fig. 5 is a C-C view of Fig. 4;

6 is a schematic structural diagram of a mud aspirator according to an embodiment of the present invention;

7 is a schematic structural diagram of a mud suction head according to the first embodiment of the present invention;

8 is a schematic structural diagram of a lifting mechanism according to an embodiment of the present invention;

FIG. 9 is a schematic structural diagram of a multi-filter plate fiber membrane filter according to an embodiment of the present invention; FIG.

Fig. 10 is an E-E view of Fig. 9;

FIG. 11 is a schematic structural diagram of a multi-filter plate multi-suction fiber membrane filter according to an embodiment of the present invention; FIG.

Fig. 12 is an F-F view of Fig. 11;

13 is a plan view of a second embodiment of the present invention;

FIG. 14 is an A-A view of FIG. 13;

15 is a B-B view of FIG. 13;

16 is a schematic structural diagram of a filter plate according to a second embodiment of the present invention;

FIG. 17 is a C-C view of FIG. 16; FIG.

FIG. 18 is a schematic diagram of the installation of the second suction unit of the embodiment of the present invention; FIG.

FIG. 19 is a schematic structural diagram of a second mud sucker group according to the embodiment of the present invention; FIG.

20 is a D-D view of FIG. 19;

21 is a schematic structural diagram of a driving mechanism according to Embodiment 2 of the present invention;

22 is a schematic structural diagram of a fiber membrane filter with a single filter plate according to a second embodiment of the present invention;

FIG. 23 is an E-E view of FIG. 22.

In the picture:

1-water inlet tank, 2-sink tank, 3-filtrate tank, 4-water outlet tank, 5A-filter plate A, 5B-filter plate B, 6A-suction device A, 6B-suction device B, 7-lifting mechanism , 8A-Lifting Rail A, 8B-Lifting Rail B, 8C-Lifting Rail C, 9-Limit Sensor, 10-Liquid Level Sensor, 11-Sedimentary Sludge Pump, 12-Water Weir;

501-filter cloth support, 502-filter cloth;

601-suction head, 602-suction pump, 604a-elevating guide wheel a, 604b-elevating guide wheel b, 603a-suction nozzle a, 603b-suction nozzle b, 603x-suction nozzle x, 605-suction Mud pipe

701-bearing frame, 702-lifting driving device, 703a-pulley a, 703b-pulley b, 704-drawing rope;

5A01-filter plate A1, 5A02-filter plate A2, 5A03-filter plate A3, 5A04-filter plate A4, 5A0m-filter plate Am, 5B01-filter plate B1, 5B02-filter plate B2, 5B03-filter plate B3, 5B04- Filter plate B4, 5B0m-filter plate Bm;

602a-suction pump a, 602b-suction pump b, 602c-suction pump c, 602n-suction pump n;

6A01-mud suction A1, 6A02-mud suction A2, 6A03-mud suction A3, 6A0x-mud suction Ax, 6B01-mud suction B1, 6B02-mud suction B2, 6B03-mud suction B3, 6B0x -Suction Bx;

8D01- intermediate lifting guide 1, 8D02- intermediate lifting guide 2, 8D03- intermediate lifting guide 3, 8D0s- intermediate lifting guide s.

5C-filter plate C, 5D-filter plate D, 5M-filter plate M, 6-suction unit, 7A-transverse drive mechanism, 8D-traverse guide A, 8E-traverse guide B, 9A-limit sensor A, 9B-limit sensor B;

601a-suction suction a, 601b-suction suction b, 601c-suction suction c, 601d-suction suction d, 601n-suction suction head n, 602a-connection rope a, 602b-connection rope b, 602c-connection Rope c, 602s-connecting rope s,

6011-suction head, 6012-suction pump, 6013a-suction pipe a, 6013b-suction pipe b, 6013x-suction pipe x, 6014a-traverse guide a, 6014b-traverse guide b,

705-transverse force, 702a-pulley a, 702b-pulley b, 702c-pulley c, 702z-pulley z, 704-draw rope;

5‐filter plate, 6‐mud suction unit.

Implementation mode one:

For a small sewage treatment system, the structure of a back-and-forth lifting type anti-suction fiber membrane filter according to Embodiment 1 of the present invention is shown in FIG. 1-12, which includes a water inlet tank 1, a sewage tank 2, a filtrate tank 3, Outlet tank 4, two sets of

filter plates

5A and 5B, two sets of

mud suction devices

6A and

6B

6A and 6B, lifting mechanism 7, lifting

guide rails

8A, 8B and 8C, limit sensor 9, liquid level sensor 10 and sedimentation sludge pump 11 And other parts. Intake tank 1 is located at the front of the sewage tank 2. The sewage flows slowly and smoothly into the sewage tank 2 through the water inlet between the water tank 1 and the sewage tank 2. The sewage tank 2 has a rectangular structure, and a slope is set at the bottom to make sedimentation. The sludge is concentrated to facilitate suction cleaning. The back end of sewage tank 2 is connected to filtrate tank 3, and there is a liquid level difference H between filtrate tank 3 and sewage tank 2. The size of H depends on the filtration pressure of the sewage filtration. There are two filter holes symmetrically located along the center between the 3 and the sewage tank 2. The upper edge of the filter hole is located below the liquid level of the filtrate tank 3. The two sets of

filter plates

5A and 5B are installed and fixed at the front ends of the two filter holes. , And completely seal the two filter holes, so that sewage can only be filtered through the

filter plates

5A and 5B before entering the filtrate tank 3 through the filter holes; a set of suction mud is set at the front end of each group of

filter plates

5A and

5B

6A and 6B, whose suction head is level with the

filter plates

5A and 5B and abuts in front of the filter cloth of the

filter plates

5A and 5B. It can suck the sludge attached to the filter cloth and two suction mud The structure of the

filters

6A and 6B is the same, and the length is equal to or slightly larger than the horizontal width of the

filter plates

5A and 5B. Size, and in the vertical direction, the two

mud suckers

6A and 6B coincide with the center planes of the

filter plates

5A and 5B, respectively; the lifting mechanism 7 is installed and fixed above the sewage tank 2, and the two ends of its rope are respectively connected with the two The group of

mud suction devices

6A and 6B are connected, which drives the

mud suction devices

6A and 6B to move up and down, and the movement of the two

mud suction devices

6A and 6B is synchronous and reverse; the lifting guides 8A, 8B, and 8C are installed and fixed in the sewage tank 2. The positions on the wall of the tank are set at the two ends of the

suction device

6A and 6B, respectively. The

suction devices

6A and 6B can share the intermediate lifting guide 8C. The main function of the lifting guides 8A, 8B and 8C is through the communication with the suction device 6A. Cooperate with the rollers at the end of 6B to guide and limit the lifting movement of the

suction machines

6A and 6B; the limit sensor 9 is set at the top position of the middle lifting guide 8C, which starts the lifting stroke of the

suction machines

6A and 6B Limiting effect. During the process of lifting and lowering of the

suction suction devices

6A and 6B, no matter which

suction suction device

6A or 6B touches the limit sensor, the driving mechanism 7 stops moving and waits for the next anti-suction instruction. The driving mechanism 7 moves in the opposite direction, and the two

suction machines

6A and 6B move in the opposite direction. The liquid level sensor 10 is installed and fixed on the sewage tank 2 and its role is to detect the liquid level of the sewage tank 2 to indirectly determine the clogging of the

filter plates

5A and 5B. When the liquid level sensor 10 detects the liquid level in the sewage tank 2 When the warning line is exceeded, that is, when the liquid level difference H between the sewage tank 2 and the filtrate tank 3 is too large, it can be considered that the

filter plates

5A and 5B have relatively serious blockages, and the sludge on the

filter plates

5A and 5B needs to be cleaned up. At this time, the suction pumps of the suction dredges 6A and 6B are started to start the back suction of the sludge on the

filter plates

5A and 5B, and the lifting mechanism 7 is started at the same time, which drives the two suction dredges 6A and 6B to go up or down respectively. Move down uniformly until the

suction device

6A or 6B touches the limit sensor 8. Then stop the suction pump of the lifting mechanism 7 and the

suction devices

6A and 6B to complete the comprehensive cleaning of the sludge on the entire filter cloth; The water outlet tank 4 is located at the rear end of the filter tank, and it is connected to the filtrate tank 3. There is an outlet weir between the water outlet tank 4 and the filtrate tank 3, and the filtrate in the filtrate tank 3 continuously overflows into the water outlet tank 4 through the water outlet weir; The sedimentation sludge pump 11 is installed on the sewage tank 2 and its suction pipe extends all the way to the most Point, which may be periodically sump 2 bottom precipitated sludge is withdrawn to prevent the sludge sedimentation.

The structure of the above-mentioned

filter plates

5A and 5B is shown in FIGS. 4 and 5, and is composed of a filter cloth support 501 and a filter cloth 502. The filter cloth 502 is a working part for filter filtration, and the material is usually but not limited to a dense bundle fiber filter cloth, which is attached to a filter cloth support 501; the filter cloth support 501 is the skeleton of the

entire filter plate

5A and 5B, which is a filter The cloth 502 provides support while ensuring that the filter cloth 502 attached to it is kept flat. The material of the filter cloth support 501 can be, but is not limited to, high-strength nylon, polyurethane, or stainless steel. The plane on which the cloth 502 fits is usually but not limited to The grid structure can ensure the necessary support strength without affecting the filtering area of the filter cloth 502.

The structures of the above-mentioned

mud suction devices

6A and 6B are shown in FIGS. 6 and 7, which mainly include a mud suction head 601, a suction pump 602, a suction pipe 605,

suction nozzles

603a, 603b, and 603x, and lifting

guide wheels

604a and 604b and other parts. The suction head 601 is its working part, which is located at the front end of the

filter plate

5A or 5B. The side of the suction head 601 near the filter cloth 502 is uniformly arranged with a plurality of suction nozzles in a horizontal direction, and the suction nozzle is abutted against the filter cloth. On the 502, its mud suction range just covers the filter cloth 502 in the horizontal direction completely; the mud suction pump 602 is a back suction power device, which is installed on the sewage tank 2 and passes through the

mud suction nozzles

603a, 603b, ... and 603x and The suction head 601 is connected together; one end of the suction nozzle 605 is connected to the water inlet of the suction pump 602, and the other end is connected to the back of the suction head 601. Each

suction device

6A and 6B may be provided with multiple suction nozzles. 603a, 603b ... and 603x, and are evenly distributed along the length of the suction head 601; lifting

guide wheels

604a and 604b are respectively arranged at both ends of the suction head 601, which cooperate with the lifting guides 8A, 8B and 8C to suck the mud The lifting movements of the

suction devices

6A and 6B play a guiding and limiting role; in order to prevent the

suction device

6A and 6B from covering the filter cloth 502 and reducing the filtering area, the highest position of the suction head 601 is equal to or slightly higher than that of the

filter plates

5A and 5B. Upper edge, the lowest position is equal to or slightly lower than the lower edges of the

filter plates

5A and 5B. The suction head 601 has a certain Amount, in order to ensure its smooth movement of the lifting process.

The above-mentioned lifting mechanism is shown in FIG. 8, which is a power device for the reciprocating lifting movement of the

suction machines

6A and 6B, which is composed of a bearing frame 701, a lifting drive 702, two pulleys 703 a and 703 b, and a pull rope 704. The load-bearing frame 701 is a door frame structure. The two ends of the load-bearing frame 701 are respectively fixed on the pool body on both sides of the sewage tank 2. The lifting drive 702 is installed at the center position of the beam of the load-bearing frame 701. It usually adopts but is not limited to a sprocket mechanism. Or winch mechanism, which can realize the output of forward and reverse rotation; two pulleys 703a and 703b are installed on both sides under the crossbeam of the load bearing frame 701; a rope 704 bypasses the lifting drive 702, and the two ends pass through the two

pulleys

703a and 703a, respectively. 703b is connected to the two

mud suction devices

6A and 6B, which are driven by the lifting drive 702 to take two

mud suction devices

6A and 6B up and down to perform synchronous reverse lifting movements.

For some large-scale sewage treatment systems, a multi-filter plate structure can be used. The specific structure is shown in Figures 9 and 10. The main structure and working principle are basically the same as those of the first embodiment, but to ensure sufficient filtration area, the sewage tank 2 The partition wall with the filtrate tank 3 can be made relatively long, so the filter holes on both sides are also very long or consist of multiple filter holes of the same size. Based on the convenience of production and installation, each group of

filter plates

5A and 5B is also Can be composed of multiple filter plates 5A01, 5A02, ..., 5A0m or 5B01, 5B02, ..., 5B0m, each filter plate 5A01, 5A02, ..., 5A0m, 5B01, 5B02, ..., 5B0m have the same specifications, The dimensions are the same and can be used for each other. Correspondingly, the suction nozzles on the suction head 601 are also arranged in sections in the horizontal direction, and each section corresponds to a filter plate, which is evenly distributed within the width of each filter plate. To ensure that its suction range is exactly covered by the horizontal width of the filter cloth in the horizontal direction, and its anti-suction operation is the same as that of the first embodiment; meanwhile, the suction head of the suction device is very long, in order to ensure effective guarantee At this time, multiple

mud suction pumps

602a, 602c, ..., 602n can be provided. The specifications and models of each

mud suction pump

602a, 602c, ..., 602n are consistent and interchangeable. The suction length is also the same. During the reverse suction process, all the

suction pumps

602a, 602c, ..., 602n start and stop together.

For some large-scale sewage treatment systems, multi-filter plates and multi-suction dredgers can also be used. The specific structure is shown in Figures 11 and 12. The main structure is the same as that of the specific embodiment 2. The main difference from the specific embodiment is that each of the filter plates 5A01, 5A02, ..., 5A0m, 5B01, 5B02, ..., 5B0m corresponds to a mud suction device 6A01, 6A02. , ..., 6A0x, 6B01, 6B02, ..., 6B0x; each of the suction devices 6A01, 6A02, ..., 6A0x, 6B01, 6B02, ..., 6B0x is connected to the drawstring, and the drawstring 704 passes through the upper part of it. The pulley is connected to the lifting drive 702, and the suction device 6A01, 6A02, ..., 6A0x, 6B01, 6B02, ..., 6B0x uniformly lifting and lowering movement is driven by the lifting drive 702, with the filter plate group horizontal center as the boundary, on the same side The suction of 6A01, 6A02, ... 6A0x or 6B01, 6B02, ..., 6B0x movements are kept in sync, and the suction of different sides 6A01, 6A02, ... 6A0x is synchronized with the movements of 6B01, 6B02, ..., 6B0x. The middle lifting guides 8D01, 8D02, ..., 8D0s are provided in the middle of no two suction devices to lift and lower all the suction devices 6A01, 6A02, ..., 6A0x, 6B01, 6B02, ..., 6B0x. Limit and guide during the process.

Implementation mode two:

The structure of a transverse reciprocating anti-suction fiber membrane filter according to the second embodiment of the present invention is shown in FIG. 13-23, which mainly includes an inlet pool 1, a sewage pool 2, a filtrate pool 3, an outlet pool 4, and several groups.

Filter plates

5A, 5B, 5C, ... and 5M, suction device group 6, lateral drive mechanism 7A, two

lateral guide rails

8D and 8E, two

limit sensors

9A and 9B, liquid level sensor 10, and sediment sludge Pump 11 and other components. The inlet tank 1 is located at the front end of the sewage tank 2, and the supernatant liquid enters the sewage tank 2 through overflow. The sewage tank 2 is a rectangular structure, and a slope is set at the bottom thereof to concentrate the sediment sludge, which is convenient for suction cleaning. The rear end of the pool 2 is connected to the filtrate pool 3. The filtrate pool 3 and the sewage pool 2 are uniformly provided with m (m ≥ 1) filter holes in the horizontal direction. Each filter hole has the same size and size. The positions are the same; the

filter plates

5A, 5B, 5C, ... and 5M are installed and fixed at the front of the filter holes. Each filter plate corresponds to a filter hole, which completely seals the filter holes, so that the sewage in the sewage tank 2 can only be filtered. The

plates

5A, 5B, 5C, ... and 5M can enter the filtrate tank 2 through the filter holes after filtering; the suction unit 6 is arranged at the front of the filter plate, and its suction head and the

filter plates

5A, 5B, 5C, ... … And 5M is flush with and vertical to the front of the filter cloth, it can suck the sludge attached to the filter cloth, the length of the suction head is equal to or slightly larger than the vertical height of the filter plate, and in the horizontal direction It just coincides with the center planes of the

filter plates

5A, 5B, 5C, ... and 5M; The structure 7A is installed and fixed on the sewage tank 2. The two ends of its pull rope are connected to the two ends of the suction device group 6, respectively, to drive the suction device group 6 to move back and forth laterally; two

lateral guide rails

8D and 8E are respectively arranged on the suction device. The upper and lower sides of the suction unit 6 are arranged horizontally. The main role of the traversing

guide rails

8D and 8E is to guide and limit the lateral movement of the suction suction through cooperation with the rollers at the end of the suction suction, so that the suction of mud The movement trajectory of the device is parallel to the plane of the filter, and the suction nozzle of the suction device is kept at an appropriate distance from the filter plate; the

limit sensors

9A and 9B are respectively arranged at both ends of the

lateral guide rail

8D or 8E, The lateral stroke of group 6 acts as a limit. During the horizontal movement of the suction unit 6, no matter whether it touches the

limit sensor

9A or 9B on the side, the lateral drive mechanism 7A stops moving and waits for the next anti-suction. When the command is issued, the lateral drive mechanism 7A moves in the reverse direction, and the suction unit 6 also moves in the opposite direction. The liquid level sensor 10 is fixed on the sewage tank 2 and its role is to indirectly judge by detecting the liquid level of the sewage tank 2 Filter cloth clogging when the liquid level sensor 10 detects If the liquid level in the pool 2 exceeds the warning line, it can be considered that the filter cloth has a serious blockage, and the sludge on the filter cloth needs to be cleaned. At this time, the suction pump of the suction unit 6 is started to start the filter cloth. The sludge on the upper side is sucked back, and the lateral driving mechanism 7A is activated at the same time, which drives the suction unit 6 to move horizontally and uniformly until the suction unit 6 touches the

limit sensor

9A or 9B, and then stops the lateral driving mechanism 7A and The suction pump of the suction device group 6 completes the comprehensive cleaning of the sludge on the entire filter cloth; the sedimentation sludge pump 11 is installed on the sewage tank 2 and its suction pipe extends to the lowest point of the sewage tank 2. The sludge deposited at the bottom of the sewage tank 2 can be regularly drawn out to prevent sludge deposition. The water outlet tank 4 is located at the rear end of the filter tank, which is connected to the filtrate tank 3. There is an outlet weir between the water outlet tank 4 and the filtrate tank 3. The filtrate in the filtrate tank 3 continuously overflows into the water outlet tank 4 through the water outlet weir. The water outlet tank sends water to the next processing step.

The structure of the

filter plates

5A, 5B, 5C,... And 5M according to the present invention is shown in FIGS. 16 and 17, and is composed of a filter cloth support 501 and a filter cloth 502. The filter cloth 502 is a working part for filter filtration, and the material is usually but not limited to a dense bundle fiber filter cloth, which is attached to a filter cloth support 501; the filter cloth support 501 is the skeleton of the

entire filter plate

The structure of the suction device group 6 according to the present invention is shown in FIG. 18, which is composed of a plurality of suction devices 601a, 601b, ..., 601n and connecting

ropes

602a, 602b, ..., 602s. All the suction devices 601a, 601b, ... and 601n have the same structure and the same size, are evenly distributed in the horizontal direction, and the distance between them is equal, and the distance between them is the working length of each suction device; the suction devices 601a, 601b ... And 601n are connected in series with each other by connecting

ropes

602a, 602b,... And 602s, so as to ensure that all the suction devices 601a, 601b,... And 601n can move synchronously under the pull of the driving mechanism 7.

The structures of the mud suckers 601a, 601b, ... and 601n according to the present invention are shown in Figs. 19 and 20, which are mainly composed of a mud suction head 6011, a mud suction pump 6012, a

mud suction pipe

6013a, 6013b, ... and 6013x. It also consists of two traverse

guide wheel sets

6014a and 6014b. The suction head 6011 is its working part, which is located at the front end of the

filter plates

5A, 5B, 5C, ... and 5M. The side of the suction head 6011 near the filter cloth 502 is uniformly arranged with a plurality of suction nozzles in the vertical direction. The suction nozzle is abutted on the filter cloth 502, and its suction range is completely covered by the filter cloth 502 in the vertical direction. The suction pump 6012 is an anti-suction power unit, which is installed on the sewage tank 2 and sucks mud. The

pipes

6013a, 6013b, ... and 6013x are connected to the suction head 6011; one end of the

suction pipes

6013a, 6013b, ... and 6013x are connected to the water inlet of the suction pump 6012, and the other end is connected to the back of the suction head 6011 Each of the mud suction devices 601a, 601b, ... and 601n can be provided with multiple suction pipes 013a, 6013b, ... and 6013x, and are evenly distributed along the length of the suction head 6011; two traverse guide wheel sets 6014a And 6014b are respectively arranged at both ends of the suction head 6011, which cooperate with the

traverse guide rails

8A and 8B, respectively, to guide and limit the lateral movement of the suction suction devices 601a, 601b, ... and 601n; in order to prevent mud suction Filters 601a, 601b,... And 601n cover the filter cloth 502 and reduce the filtering area. Suction filters 601a, 601b ...... 601n and when not working, the initial position of the suction head 6011 of the

filter plates

5A, 5B, 5C, 5M, and a vertical boundary ...... flush with the left or right.

For the case where the height of the

filter plates

5A, 5B, 5C, ... and 5M is relatively large, the suction head 6011 is relatively long. At this time, a suction pump may not be able to effectively ensure the overall suction effect. Pumps, the specifications and models of each suction pump are consistent and interchangeable, and the corresponding suction length is also the same.

As shown in FIG. 21, the lateral driving mechanism 7A according to the present invention is a power device for the lateral reciprocating movement of the suction unit 6, which is mainly composed of a lateral moving force 705, a plurality of pulleys 702a, 702b, ... and 702z and a pull Rope 704 composition. The horizontal moving force 705 is fixedly installed on one side of the sewage tank 2. It usually adopts but is not limited to the use of a winch mechanism, which can realize forward and reverse output; the

pulleys

702a, 702b, ... and 702z are fixedly installed on the pool of the sewage tank 2 respectively. On the wall; the pull rope 703 bypasses the lateral movement force 705, and the two ends respectively pass through the

pulleys

702a, 702b,... And 702z and are connected to both ends of the suction unit 6, which can be carried by the lateral movement force 705 Suction group 6 performs horizontal and horizontal reciprocating motion.

As shown in Figures 22 and 23, for a small sewage treatment system, because its filtration area is not large, it can be provided with only one filter hole, a filter plate is set on the filter hole, and a mud trap group 6 is set at the front of the filter plate. The suction nozzles on the suction head are evenly distributed in the height range of the filter plate to ensure that the suction range of the mud cover completely covers the filter cloth in the vertical direction. The remaining structure is the same as the foregoing.

Claims

A sewage treatment method for a round-trip anti-suction fiber filter is characterized in that a filter hole is symmetrically arranged between the sewage tank and the filtrate tank, and a filter plate is fixed on the filter hole, and the sewage in the sewage tank passes the filter plate. The filter enters the filtrate tank, and a mud suction device is set on the side of the sewage tank of the filter plate. The mud suction device performs lifting or horizontal mud suction movement under the action of the driving mechanism. When the filter plate is blocked, the sewage liquid in the sewage pool When the water level of the sewage tank reaches the liquid level set by the liquid level sensor, the mud dredge is controlled to start back suction of the sludge on the filter plate, and at the same time the driving mechanism is started to drive the mud dredge to move up or down. The suction of mud is displaced, and the sludge on the filter plate is sucked away, so that the filter plate can recover the filtering ability again.
The sewage treatment method for a round-trip anti-suction fiber filter according to claim 1, characterized in that the round-trip anti-suction fiber filter adopts a round-trip lifting anti-suction fiber filter, and all filter holes are along The horizontal direction is symmetrically arranged into two groups, and a set of mud suction is provided at the front end of each filter plate. The mud suction device is under the action of the lifting guide rail and driven by the lifting mechanism. Its mud suction head and the filter plate It is flat and close to the front of the filter cloth, and its movement trajectory is parallel to the filter plate. The mud suction head sucks the sludge attached to the filter cloth. The structure of the two suction devices is the same, and the length is equal to or slightly longer than the filter plate. The horizontal width dimension, and in the vertical direction, it coincides with the central plane of the filter plate; the lifting mechanism is installed and fixed above the sewage tank, and its two ends of the rope are connected with two sets of mud suction devices respectively, which drives the mud suction device to move up and down Movement, and the movements of the two suction machines are synchronized and reversed; the lifting guides are arranged at both ends of the suction machine, the suction machines can share the intermediate lifting guides, and the main function of the lifting guides is through the rollers at the ends of the suction machines Cooperate To guide and limit the lifting movement of the suction device, make the movement track of the suction device parallel to the plane of the filter, and keep the suction nozzle of the suction device and the filter plate at an appropriate distance; limit sensor It is set on the top of the middle lifting guide rail, which limits the lifting stroke of the suction device. During the lifting process of the suction device, no matter which suction device on the other side touches the limit sensor, the lifting driving device stops moving. Waiting for the next anti-suction instruction, the lifting drive moves in the opposite direction, and the two suction machines move in the opposite direction; the liquid level sensor is installed and fixed on the sewage tank, and its role is to detect the liquid level of the sewage tank to judge indirectly. The clogging of the filter cloth. When the liquid level sensor detects that the liquid level in the sewage tank exceeds the warning line, it can be considered that the filter cloth has a serious blockage, and the sludge on the filter cloth needs to be cleaned. At this time, the suction is started. The suction pump of the dredger starts to back-suction the sludge on the filter cloth, and simultaneously starts the lifting mechanism, which drives the two dredgers to move up and down at a uniform speed until the dredger touches the limit Sensor, stop the lifting mechanism and the suction pump of the suction device to complete the comprehensive cleaning of the sludge on the entire filter cloth; the sedimentation sludge pump is installed on the sewage tank, and its suction pipe extends to the lowest of the sewage tank Point, it can regularly pull out the sludge deposited at the bottom of the sewage tank to prevent sludge deposition.
The sewage treatment method for a round-trip back-suction fiber suction filter according to claim 1, characterized in that: the round-trip back-suction fiber filter uses a round-trip transverse back-suction fiber filter. A series of filter holes are arranged between the filtrate pools, each of which has the same size and the same height. A filter plate is installed and fixed on each filter hole. The sewage in the sewage pool enters the filtrate pool through the filtration of the filter plate, and is at the front of the filter plate. A set of mud suckers are arranged evenly. All the mud suckers have the same structure. Each mud sucker is connected in a straight line and is evenly arranged in the horizontal direction. The horizontal back and forth movement is synchronized under the action of the driving mechanism. When the filter plate is blocked At the same time, the liquid level of the sewage tank rises. When the liquid level of the sewage tank reaches the set height, the suction pump of the mud suction device is started to reverse suction the sludge on the filter plate, and at the same time, the driving mechanism is started to bring the mud suction. The device performs synchronous lateral movement, and at the same time sucks away the sludge on the filter plate, so that the filter plate can recover the filtering ability again; the back and forth anti-suction fiber membrane filter includes a sewage tank, a filtrate tank, and multiple groups The filter plate, the suction unit, the driving mechanism, the two traverse guides, the limit sensor, the liquid level sensor, and the sediment sludge pump and other parts, the sewage tank is equipped with a slope at the bottom to make the sediment sludge concentrated, convenient Suction cleaning; the filtrate tank is connected to the rear end of the sewage tank, and m (m≥1) filter holes are evenly arranged in the horizontal direction between the filtrate tank and the sewage tank. Each filter hole has the same size and size in the height direction. The position is the same; a filter plate is installed and fixed at the front of each filter hole, and the filter plate completely seals the filter hole, so that the sewage can only enter the filtrate tank through the filter hole after filtering through the filter plate; At the front end of the filter plate, its suction head is flush with the filter plate and is in front of the filter cloth. It can suck out the sludge attached to the filter cloth. The length of the suction head is equal to or slightly longer than the filter plate. The vertical height dimension, and in the horizontal direction, it coincides with the central plane of the filter plate; the driving mechanism is installed and fixed on the sewage tank, and the two ends of its pull rope are connected to the two ends of the suction unit respectively, which drives the suction unit to move back and forth horizontally Transport ; Two traverse guides are respectively arranged on the upper and lower sides of the suction unit and are arranged horizontally. The main function of the traverse guide is to coordinate with the rollers at the end of the suction unit to guide the lateral movement of the suction unit and Limiting action makes the movement trajectory of the suction device parallel to the plane of the filter, and keeps the suction nozzle of the suction device and the filter plate at an appropriate distance. The horizontal stroke of the device acts as a limit. During the lateral movement of the suction device, no matter the limit sensor on which side the suction device touches, the driving mechanism stops moving and waits for the next anti-suction instruction. The driving mechanism Reverse movement, the suction unit also moves in reverse; the liquid level sensor is installed and fixed on the sewage tank, and its role is to detect the liquid level of the sewage tank to indirectly determine the clogging of the filter cloth. When the liquid level sensor detects the sewage, If the liquid level in the tank exceeds the warning line, it can be considered that the filter cloth has a serious blockage, and the sludge on the filter cloth needs to be cleaned. At this time, the suction pump of the mud suction device is started to start the dirt on the filter cloth. mud Back suction, and start the driving mechanism at the same time, which drives the suction unit to move horizontally and uniformly until the suction unit touches the limit sensor, then the driving mechanism and the suction pump of the suction unit are stopped to complete the entire filter cloth. Comprehensive cleaning of sludge; The sedimentation sludge pump is installed on the sewage tank, and its suction pipe extends all the way to the lowest point of the sewage tank. It can regularly pull out the sludge deposited on the bottom of the sewage tank to prevent sludge accumulation.
A round-trip anti-suction fiber filter is characterized in that it includes a sewage tank, a filtrate tank, a filter plate, a mud suction device and a driving mechanism. The sewage tank is connected to the filtrate tank, and a filter is connected at the connection between the sewage tank and the filtrate tank. A filter plate is installed and fixed on the filter hole. A mud suction device is provided on the side of the sewage tank of the filter plate. The mud suction device is abutted against the filter plate. The mud suction device is connected to the driving mechanism and is driven by the driving mechanism for lifting or lifting. Horizontal suction displacement.
The reciprocating anti-suction fiber filter according to claim 4, characterized in that: the filter plate is one or more; the filter hole is also one or more; the mud suction There are one or more filters; each filter hole corresponds to a filter plate, and the filter plate is abutted against the suction suction device.
The reciprocating anti-suction fiber filter according to claim 4, characterized in that: the driving mechanism comprises a lifting mechanism, a slope is provided at the bottom of the sewage tank, a sedimentation sludge pump is provided in the sewage tank, and the sedimentation sludge The inlet end of the suction pipe of the pump is placed at the bottom of the sewage tank; the lifting mechanism includes a load-bearing frame, a lifting driving device, a pulley and a rope; the load-bearing frame is a door frame structure, and two ends of the load-bearing frame are respectively fixed to the sewage On the pool body on both sides of the pool, the lifting driving device is installed at the center position of the beam of the bearing frame. The lifting driving device is connected to the pull rope. The two ends of the pull rope are respectively connected to the two sets of suction devices through two pulleys. Driven by the driving mechanism, the two groups of mud suckers are pulled up and down one by one to perform synchronous reverse lifting movement.
The reciprocating anti-suction fiber filter according to claim 4, wherein the mud suction device comprises a mud suction pump, a mud suction head, a mud suction pipe and a mud suction nozzle, and the mud suction pump passes the suction The mud pipe is connected to the suction head. Several suction nozzles are evenly arranged on the side of the suction head close to the filter cloth. The suction nozzle is close to the filter cloth, and its suction range covers the filter cloth. The highest position of the suction head is equal to or slightly Above the upper edge of the filter plate, the lowest position of the suction head is equal to or slightly lower than the lower edge of the filter plate. Lifting guide wheels are installed at both ends of the suction head of the suction device, corresponding to the Vertical lifting guides are provided at the two ends of the suction head, and the lifting guide wheels at the ends of the suction head are sleeved in the lifting guide; the upper part of the sewage tank is provided with a liquid level sensor, and the upper part of the lifting guide is provided with a limit for suction of mud Limit sensor for the travel of the actuator.
The reciprocating anti-suction fiber filter according to claim 4, characterized in that: the driving mechanism includes a lateral driving mechanism, the lateral driving mechanism includes a lateral moving force, a pulley set and a pull rope, and the lateral moving force is installed and fixed On one side of the sewage tank, the pulley unit is fixed on the pool wall of the sewage tank. The pull rope bypasses the lateral movement force. The two ends of the rope pass through the pulleys of the pulley group and are connected to the horizontal ends of the suction unit. Driven by the horizontal moving force, the sludge group is carried out to perform horizontal and lateral reciprocating motion.
The reciprocating anti-suction fiber filter according to claim 8, characterized in that the tip of the mud suction head of the mud suction device is equipped with a traverse guide wheel, corresponding to that in the sewage tank The upper and lower horizontal parts are respectively provided with traverse guides, and the traverse guide wheels at both ends of the suction head are sleeved in the traverse guides; the upper part of the sewage tank is provided with a liquid level sensor, and restrictions are installed at the ends of the traverse guides Limit sensor for suction stroke.
The reciprocating anti-suction fiber filter according to claim 4, characterized in that: a water inlet tank is connected to a front end of the sewage tank, and a water outlet tank is connected to a rear end of the filtrate tank; An outlet weir is provided in between, the liquid level of the filter tank is lower than that of the sewage tank, and the upper edge of the filter hole is located below the liquid level of the filtrate tank.