Activated sludge dewatering filter cloth module

Abstract

The utility model relates to a filter cloth module for dewatering activated sludge. The filter cloth module comprises a filter cloth piece arranged on a rack, an upper winding roller and a lower winding roller are arranged on the rack; the filter cloth piece comprises upper-layer filter cloth A and lower-layer filter cloth B which are in one-way connection; the filter cloth piece is arranged between the upper winding roller and the lower winding roller; the upper winding roller and the lower winding roller are arranged up and down; a dehydration station is arranged on the rack; at the dewatering station, the lower surface of the upper-layer filter cloth A and the upper surface of the lower-layer filter cloth B are in contact with sludge at the same time; the device is reasonable in design, compact in structure and convenient to use.

Description

Technical Field

[0001] This utility model relates to an activated sludge dewatering filter cloth module. Background Technology

[0002] Activated sludge dewatering equipment achieves dewatering by squeezing sludge on a filter, thereby separating sludge from water. Upon review, existing sludge dewatering processes, such as sequencing batch electro-osmosis (SBO) deep sludge dewatering equipment and methods, and sludge dewatering mechanisms for river wastewater treatment, suffer from technical problems including the inability to operate continuously and automatically, sludge clogging of the filter cloth, poor cleaning effect, and low dewatering efficiency. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide an activated sludge dewatering filter cloth module.

[0004] To solve the above problems, the technical solution adopted by this utility model is as follows:

[0005] An activated sludge dewatering filter cloth module includes filter cloth components mounted on a frame;

[0006] An upper take-up roller and a lower take-up roller are installed on the frame;

[0007] The filter cloth assembly includes an upper filter cloth A and a lower filter cloth B connected in one direction;

[0008] The filter cloth component is positioned between the upper winding roller and the lower winding roller;

[0009] The upper and lower take-up rollers are positioned vertically.

[0010] A dehydration station is provided on the frame;

[0011] At the dewatering station, the lower surface of the upper filter cloth A and the upper surface of the lower filter cloth B are in contact with the sludge simultaneously.

[0012] After dewatering is complete, the sludge is carried forward on the upper surface of the lower filter cloth B.

[0013] As a further improvement to the above technical solution:

[0014] An upward reversing roller and a downward output reversing roller are installed on both sides of the dewatering station;

[0015] The upper filter cloth A output end is connected to the lower filter cloth B input end after passing through the upward reversing roller and the downward entering guide roller;

[0016] The discharge side of the lower filter cloth B bypasses the downward output reversing roller and goes to the lower take-up roller.

[0017] A first guide roller is provided between the upper take-up roller and the input end of the upper filter cloth A.

[0018] A first water filtration station is set between the upward reversing roller and the downward inlet guide roller;

[0019] A first water tank is installed at the first water filtration station;

[0020] A first lower end roller A is installed in the first water tank;

[0021] After passing over the upward reversing roller, the filter cloth component descends and passes over the first lower end roller A, then rises and enters the downward guide roller.

[0022] A brush roller C is provided above the first lower end roller A;

[0023] The brush roller C is located inside the wrap angle of the filter cloth and simultaneously contacts the corresponding surface of the wrap angle of the filter cloth.

[0024] A downward input roller is provided on the other side of the downward entry guide roller; the downward entry guide roller and the downward input roller simultaneously contact the corresponding surfaces of the filter cloth.

[0025] A scraper assembly is provided below the downward output reversing roller, which is used to make oblique contact with the lower surface of the filter cloth after reversal.

[0026] Brush roller A and brush roller B are provided below the downward output reversing roller, which are used to make oblique contact with the lower surface of the filter cloth after reversing direction.

[0027] The scraper assembly, brush roller A, and brush roller B are arranged in sequence.

[0028] The brush density of brush roller A is less than that of brush roller B.

[0029] A second lower roller B is provided between the down-going output reversing roller and the down-taking roller; the second lower roller B is immersed in the second water tank;

[0030] A brush roller D that contacts the filter cloth is installed on the outside of the second water tank;

[0031] Between the downward output reversing roller and the second lower end roller B, there is a guide roller assembly and a rubber roller assembly for reversing the direction of the filter cloth.

[0032] Correction components are provided for the upper filter cloth A and the lower filter cloth B respectively;

[0033] Guide wheel assembly A and guide wheel assembly B with the same structure are respectively installed on the upper winding roller and on the upper surface of the output end of the upper filter cloth A;

[0034] The guide wheel assembly A and guide wheel assembly B are set to swing.

[0035] A limit switch is provided at the swing setting position;

[0036] Guide wheel assembly A and guide wheel assembly B include an elastic robotic arm hinged at one end; a guide wheel B is provided at the cantilever end of the elastic robotic arm to roll in contact with the filter cloth.

[0037] The protection point of this utility model is that the cloth winding system completes the filter cloth from unwinding to sludge dewatering, to sludge discharge, to entering the water tank for washing, and then to winding up. It is equipped with upper and lower winding rollers at the top and bottom.

[0038] Near the upper take-up roller, on both sides of the hydraulic master cylinder, mounting plates are fixed on the main frame. The two mounting plates are fixedly connected to robotic arms A and B respectively. One end of the robotic arm is fixedly connected to guide wheels A and B. When the filter cloth moves, the guide wheels will rotate with the filter cloth.

[0039] Furthermore, the position of the mounting plate can be equipped with a limit switch, which can be adjusted according to the actual situation. As the upper winding roller unwinds the filter cloth, the diameter of the winding roller gradually decreases, and the robotic arm descends. When the filter cloth on the winding roller is close to the minimum, in order to prevent the filter cloth from being completely emptied, the robotic arm touches the limit switch, the filter cloth stops being pulled out, and the main unit starts to work in reverse.

[0040] The robotic arm and guide wheels control the step distance of the filter cloth. Limit switches can be set on the mounting plate, which can be set according to the actual situation. The filter cloth moves forward once for each filter press. The filter cloth will stop after the step distance is set to approximately the width of the mold opening and closing, and wait for the next filter press to be completed before continuing to move forward, thus solving the tension problem.

[0041] During the movement of the filter cloth, a brush roller is installed to brush off the sludge adhering to the filter cloth, cleaning the filter cloth and preventing it from clogging and affecting the filtration effect.

[0042] A water tank is installed below the filter cloth on both sides. The filter cloth moves through the water tank on both sides. Brushes are installed in the water tank to clean the filter cloth and prevent sludge from clogging the filter cloth and affecting the filter pressing effect.

[0043] A scraper, spring-loaded, is installed at one end of the filter cloth discharge to scrape off the sludge from the filter cloth during pressure filtration and dewatering. A collection device is installed below to collect the discharged sludge.

[0044] Furthermore, guide rollers and rubber rollers are installed on both sides of the machine. The guide rollers are used to guide the direction of the filter cloth, and the rubber rollers are used to squeeze the filter cloth before it enters the water tank, squeezing out the water and mud on the filter cloth and promoting the cleaning of the filter cloth in the water tank.

[0045] It should be noted that when the filter cloth passes through the opening and closing mold, there are two layers of filter cloth, both of which need to come into contact with the sludge. In the opening and closing mold, the upper filter cloth participates in the filtration process, while the lower filter cloth participates in both filtration and sludge collection. After the upper filter cloth is pressed, it moves forward, and near the opening and closing mold, a brush roller is installed to brush off the sludge adhering to the upper filter cloth. The sludge will fall onto the lower filter cloth and enter the opening and closing mold with it for pressing and dewatering.

[0046] Furthermore, an electromagnetic clutch is installed on one side of the upper and lower take-up rollers, and the transmission torque between the motor and the drum is used to control the reverse movement of the upper and lower take-up rollers.

[0047] Furthermore, anti-wrinkle rollers are installed on both sides of the main unit during the movement of the filter cloth. These rollers are thicker in the middle and thinner at both ends. The filter cloth is less prone to wrinkling as it passes through these rollers.

[0048] Furthermore, the anti-wrinkle roller is divided into two sections connected by bearings. The two sections are driven by different motors: one section is driven by a servo motor, and the other section is driven by a constant speed reduction motor.

[0049] A coupling is used at the connection between the anti-wrinkle roller and the motor to further prevent the filter cloth from shifting due to deviations caused by movement.

[0050] On both sides of the anti-wrinkle roller, there are four photoelectric switches in total on the machine to detect and correct the deviation of the filter cloth.

[0051] This invention achieves continuous dewatering, with both the upper filter cloth A and the lower filter cloth B undergoing dewatering, resulting in double-sided dewatering, increasing the dewatering area, and fully utilizing the winding stroke to avoid idle strokes. Its rational arrangement ensures thorough sludge collection. Compared to annular winding, its upward and downward spatial arrangement allows for a larger dewatering stroke of the filter cloth, eliminating the need for continuous tension adjustments.

[0052] Its design is reasonable, low cost, sturdy and durable, safe and reliable, simple to operate, time-saving and labor-saving, cost-saving, compact structure and easy to use.

[0053] The specific effects will be explained in detail along with the technical features. Attached Figure Description

[0054] Figure 1 This is a schematic diagram of the structure of the upper take-up roller of this utility model.

[0055] Figure 2 This is a schematic diagram of the guide wheel assembly A of this utility model.

[0056] Figure 3 This is a schematic diagram of the brush roller D structure of this utility model.

[0057] The components are as follows: 301, filter cloth; 401, upper take-up roller; 402, first guide roller; 403, upper reversing roller; 404, first lower end roller A; 405, brush roller C; 406, lower input roller; 407, lower inlet guide roller; 408, correction assembly; 409, discharge side; 410, dewatering station; 411, lower output reversing roller; 412, scraper assembly; 413, brush roller A; 414, brush roller B; 415, rubber roller assembly; 416, guide roller assembly; 417, second water tank; 418, second lower end roller B; 419, brush roller D; 420, lower take-up roller; 421, first water tank; 422, flexible robotic arm; 423, guide wheel B; 424, guide wheel assembly A. Detailed Implementation

[0058] like Figure 1-3 As shown, the activated sludge dewatering filter cloth module of this embodiment includes a filter cloth component 301 mounted on a frame;

[0059] An upper take-up roller 401 and a lower take-up roller 420 are installed on the frame;

[0060] Filter cloth component 301 includes an upper filter cloth A and a lower filter cloth B connected in one direction;

[0061] The filter cloth component 301 is disposed between the upper winding roller 401 and the lower winding roller 420;

[0062] The upper take-up roller 401 and the lower take-up roller 420 are arranged vertically.

[0063] A dewatering station 410 is provided on the frame;

[0064] At dewatering station 410, the lower surface of the upper filter cloth A and the upper surface of the lower filter cloth B are in contact with the sludge simultaneously.

[0065] After dewatering is complete, the sludge is carried forward on the upper surface of the lower filter cloth B.

[0066] An upward reversing roller 403 and a downward output reversing roller 411 are provided on both sides of the dewatering station 410;

[0067] After the upper filter cloth A output end passes through the upward reversing roller 403 and the downward entering guide roller 407, it is connected to the lower filter cloth B input end;

[0068] The lower filter cloth B's discharge side 409 bypasses the downward output reversing roller 411 to the lower take-up roller 420.

[0069] A first guide roller 402 is provided between the upper take-up roller 401 and the input end of the upper filter cloth A.

[0070] A first water filtration station is provided between the upward reversing roller 403 and the downward inlet guide roller 407;

[0071] A first water tank 421 is installed at the first water filtration station;

[0072] A first lower end roller A404 is provided in the first water tank 421;

[0073] After passing over the upward reversing roller 403, the filter cloth 301 descends and passes over the first lower end roller A404, then rises and enters the downward guide roller 407.

[0074] A brush roller C405 is provided above the first lower end roller A404;

[0075] The brush roller C405 is located inside the wrap angle of the filter cloth 301 and simultaneously contacts the corresponding surface of the wrap angle of the filter cloth 301.

[0076] A downward input roller 406 is provided on the other side of the downward entry guide roller 407; the downward entry guide roller 407 and the downward input roller 406 simultaneously contact the corresponding surfaces of the filter cloth 301.

[0077] A scraper assembly 412 is provided below the downward output reversing roller 411 for oblique contact with the lower surface of the filter cloth 301 after reversal.

[0078] Below the downward output reversing roller 411, brush rollers A413 and B414 are provided for oblique contact with the lower surface of the filter cloth 301 after reversal.

[0079] Scraper assembly 412, brush roller A413, and brush roller B414 are arranged in sequence;

[0080] The brush density of brush roller A413 is less than that of brush roller B414.

[0081] A second lower end roller B418 is provided between the down-going output reversing roller 411 and the down-taking roller 420; the second lower end roller B418 is immersed in the second water tank 417;

[0082] A brush roller D419 that contacts the filter cloth component 301 is provided on the outside of the second water tank 417;

[0083] Between the downward output reversing roller 411 and the second lower end roller B418, there is a guide roller assembly 416 and a rubber roller assembly 415 for reversing the direction of the filter cloth 301.

[0084] The upper filter cloth A and the lower filter cloth B are respectively equipped with a correction component 408;

[0085] Guide wheel assembly A424 and guide wheel assembly B with the same structure are respectively provided on the upper winding roller 401 and the upper surface of the output end of the upper filter cloth A;

[0086] The guide wheel assembly A424 and guide wheel assembly B are oscillating.

[0087] A limit switch is provided at the swing setting position;

[0088] The guide wheel assembly A424 and guide wheel assembly B include an elastic robotic arm 422 hinged at one end; a guide wheel B423 is provided at the cantilever end of the elastic robotic arm 422 to roll in contact with the filter cloth 301.

[0089] As a specific working principle, the lower surface of the upper filter cloth A and the upper surface of the lower filter cloth B are simultaneously in contact with the sludge through hydraulic or mechanical means; the sludge is squeezed and dewatered.

[0090] After dewatering is complete, the sludge, carried on the upper surface of the lower filter cloth B, moves forward one station, thus enabling the next section of filter cloth 301 to undergo dewatering. The output of the upper take-up roller 401 is controlled by guide roller A, and the travel step length of the filter cloth is controlled by guide roller B423. Guide roller B423 can be equipped with Hall effect sensors, etc.

[0091] In the first water tank 421, the lower surface of the upper filter cloth A is cleaned twice by the brush roller C405.

[0092] The filter cloth 301 is guided and output through the downward input roller 406 and the downward guide roller 407 for secondary utilization.

[0093] The upper surface of the lower filter cloth B is output through the discharge side 409, passes through the downward output reversing roller 411, and after reversing direction, it undergoes three cleaning processes through the scraper group 412, brush roller A 413, and brush roller B 414 to reduce sludge falling into the water tank.

[0094] The second lower roller B418 changes direction, and the brush roller D419 cleans it. The lower take-up roller 420 coils it up. When the coiling amount is greater than the set threshold, the lower take-up roller 420 and the upper take-up roller 401 rotate in opposite directions at the same time to achieve reverse coiling of the filter cloth 301. It can return empty or work during the return trip.

[0095] This utility model is described in detail for the purpose of making the disclosure clearer, and the prior art will not be listed one by one.

[0096] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. It is obvious to those skilled in the art that multiple technical solutions of this utility model can be combined. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model. All technical contents not described in detail in this utility model are publicly known technologies.

Claims

1. An activated sludge dewatering filter cloth module, characterized in that: Includes filter cloth components (301) mounted on the frame; An upper take-up roller (401) and a lower take-up roller (420) are provided on the frame; The filter cloth element (301) includes an upper filter cloth A and a lower filter cloth B connected in one direction; The filter cloth component (301) is disposed between the upper winding roller (401) and the lower winding roller (420); The upper take-up roller (401) and the lower take-up roller (420) are arranged vertically. A dehydration station (410) is provided on the frame; At the dewatering station (410), the lower surface of the upper filter cloth A and the upper surface of the lower filter cloth B are in contact with the sludge simultaneously. After dewatering is complete, the sludge is carried forward on the upper surface of the lower filter cloth B.

2. The activated sludge dewatering filter cloth module according to claim 1, characterized in that: An upward reversing roller (403) and a downward output reversing roller (411) are provided on both sides of the dewatering station (410); After the upper filter cloth A output end passes through the upward reversing roller (403) and the downward entering guide roller (407), it is connected to the lower filter cloth B input end; The discharge side (409) of the lower filter cloth B bypasses the downward output reversing roller (411) to the lower take-up roller (420).

3. The activated sludge dewatering filter cloth module according to claim 1, characterized in that: A first guide roller (402) is provided between the upper take-up roller (401) and the input end of the upper filter cloth A.

4. The activated sludge dewatering filter cloth module according to claim 2, characterized in that: A first water filtration station is provided between the upward reversing roller (403) and the downward entering guide roller (407); A first water tank (421) is installed at the first water filtration station; A first lower end roller A (404) is provided in the first water tank (421); After passing over the upward reversing roller (403), the filter cloth (301) descends and passes over the first lower end roller A (404), then rises and enters the downward guide roller (407).

5. The activated sludge dewatering filter cloth module according to claim 4, characterized in that: A brush roller C (405) is provided above the first lower roller A (404); The brush roller C (405) is located inside the wrap angle of the filter cloth (301) and simultaneously contacts the corresponding surface of the wrap angle of the filter cloth (301).

6. The activated sludge dewatering filter cloth module according to claim 5, characterized in that: A downward input roller (406) is provided on the other side of the downward entry guide roller (407); the downward entry guide roller (407) and the downward input roller (406) simultaneously contact the corresponding surfaces of the filter cloth (301).

7. The activated sludge dewatering filter cloth module according to claim 6, characterized in that: A scraper assembly (412) is provided below the downward output reversing roller (411) for oblique contact with the lower surface of the reversing filter cloth (301).

8. The activated sludge dewatering filter cloth module according to claim 7, characterized in that: Below the downward output reversing roller (411) are brush roller A (413) and brush roller B (414) for oblique contact with the lower surface of the filter cloth (301) after reversing direction; The scraper assembly (412), brush roller A (413), and brush roller B (414) are arranged in sequence; The brush density of brush roller A (413) is less than that of brush roller B (414).

9. The activated sludge dewatering filter cloth module according to claim 8, characterized in that: A second lower end roller B (418) is provided between the down-output reversing roller (411) and the down-rewinding roller (420); the second lower end roller B (418) is immersed in the second water tank (417); A brush roller D (419) that contacts the filter cloth (301) is provided on the outside of the second water tank (417); Between the downward output reversing roller (411) and the second lower end roller B (418), there is a guide roller assembly (416) and a rubber roller assembly (415) for reversing the direction of the filter cloth (301).

10. The activated sludge dewatering filter cloth module according to claim 9, characterized in that: The upper filter cloth A and the lower filter cloth B are respectively equipped with a correction component (408); Guide wheel assembly A (424) and guide wheel assembly B with the same structure are respectively provided on the upper winding roller (401) and the upper surface of the output end of the upper filter cloth A; Guide wheel assembly A (424) and guide wheel assembly B are oscillating; A limit switch is provided at the swing setting position; The guide wheel assembly A (424) and guide wheel assembly B include an elastic robotic arm (422) hinged at one end; a guide wheel B (423) is provided at the cantilever end of the elastic robotic arm (422) to roll in contact with the filter cloth (301).

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