Integrated sludge anti-diffusion cleaning equipment for printing and dyeing wastewater sedimentation tank

Abstract

The invention discloses integrated sludge anti-diffusion cleaning equipment for a printing and dyeing wastewater sedimentation tank, and belongs to the technical field of printing and dyeing wastewater treatment. The equipment comprises a sedimentation tank, a sludge collecting plate and a limiting ring arranged on the sludge collecting plate. The sludge adsorption rope sequentially penetrates through the limiting rings to form rope rings, and the reset traction rope penetrates through all the rope rings and is connected to the rope winding shaft. The rope winding shaft is controlled to rotate through the driving device, and unfolding and folding of the adsorption rope can be achieved. In the precipitation process, the expanded adsorption rope effectively adsorbs the sludge and inhibits the re-diffusion of the sludge; during cleaning, the adsorption rope is folded and attached to the surface of the collecting plate, so that sludge is convenient to clean. The device is reasonable in structure, can improve the precipitation efficiency and stability, can realize rapid and continuous sludge cleaning, and is suitable for a precipitation section in printing and dyeing wastewater treatment.

Description

Technical Field

[0001] This invention relates to the field of dyeing and printing wastewater treatment technology, specifically to an integrated device applied in the sedimentation stage, used to prevent sludge from spreading and to facilitate cleaning. Background Technology

[0002] The dyeing and printing industry discharges large volumes of wastewater with complex compositions, containing a significant amount of suspended solids and chemical dyes. In the wastewater treatment process, sedimentation tanks are a crucial unit for solid-liquid separation of sludge. However, in actual operation, settled sludge is easily resuspended and diffused due to external forces such as water flow disturbance within the tank and equipment vibration, leading to decreased sedimentation efficiency, fluctuations in effluent quality, and increased load on subsequent filtration units. Furthermore, cleaning the bottom sludge of traditional sedimentation tanks typically requires system shutdown, which is inconvenient and affects the continuous and stable operation of the treatment system. Therefore, there is an urgent need to develop a sedimentation tank device that can effectively inhibit sludge redispersibility and achieve rapid and convenient cleaning. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of existing technologies and provide an integrated sludge anti-diffusion cleaning device for dyeing and printing wastewater sedimentation tanks. This device can effectively adsorb and fix sludge during the sedimentation process, preventing it from diffusing again. It also features a rapid collection and cleaning mechanism for easy sludge removal, thereby improving sedimentation efficiency and system operational continuity.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: An integrated sludge anti-diffusion cleaning device for dyeing and printing wastewater sedimentation tanks includes a sedimentation tank body. An inlet is located in the middle section of the side wall of the sedimentation tank body, and an outlet is located at the top. A sludge collection plate is installed at the bottom of the tank body. Multiple parallel guide strips are arranged on the sludge collection plate, and multiple limiting rings are fixed at intervals on each guide strip. A sludge adsorption rope is provided corresponding to each guide strip, with one end anchored to the tank wall and the other end wound and connected to a first drive shaft. The adsorption rope passes sequentially through each limiting ring on the corresponding guide strip, thereby forming a drooping rope loop structure between the limiting rings. A reset traction rope passes sequentially through all the rope loops, with its two ends anchored to the tank wall and a second drive shaft, respectively.

[0005] Furthermore, an elastic support mechanism is installed on the pool wall above the starting and ending anchor points of the adsorption rope. This mechanism includes a bearing fixed to the pool wall, a swing arm rotatably mounted on the bearing, and a roller at the free end of the swing arm. The reset traction rope passes under the roller. A torsion spring is provided on the bearing to provide the swing arm with an elastic force that presses the roller downwards to compress the reset traction rope. A guide limit block is provided on the pool wall above the roller.

[0006] Furthermore, the first drive reel and the second drive reel are each driven and controlled by an independent motor.

[0007] The beneficial effects of this invention are: The equipment effectively intercepts and adsorbs fine sludge particles that are settling by setting up an expandable sludge adsorption rope network in the sedimentation tank, forming a stable sludge layer. This significantly reduces the sludge redispersion caused by hydraulic fluctuations, thereby improving the sedimentation efficiency and operational stability of the sedimentation tank.

[0008] When it is necessary to clean the sludge at the bottom of the pool, the first drive shaft is driven to rewind the suction rope, so that all the ropes are in close contact with the surface of the sludge collection plate, making room for cleaning. This greatly facilitates manual or mechanical sludge scraping operations, simplifies the cleaning process, and shortens maintenance time.

[0009] By cooperating with the reset traction rope and the second drive reel, the adsorption rope can be automatically tensioned and restored to the set working state after cleaning is completed, realizing the rapid reset and cyclic use of the device, and ensuring the continuity and automation of the processing process. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the internal structure of the sedimentation tank when the adsorption rope is in the working and deployed state in this invention.

[0011] Figure 2 This is a schematic diagram of the internal structure of the sedimentation tank when the adsorption rope is in the retracted cleaning state in this invention.

[0012] Figure 3 for Figure 1 A magnified view of the structure of region A in the middle.

[0013] Figure 4 for Figure 1 A magnified view of the structure of region B in the middle.

[0014] Figure 5 for Figure 2 A magnified view of the structure of region C in the middle.

[0015] Figure 6 for Figure 2 A magnified view of the structure of region D in the middle.

[0016] Figure 7 This is a top view of a partial structure of the sludge collection plate.

[0017] Figure 8 This is a schematic diagram of the installation structure of the limit ring.

[0018] The diagram shows the following markings: 101, sedimentation tank; 102, inlet; 103, outlet; 104, sludge collection plate; 105, limiting ring; 106, sludge adsorption rope; 107, reset traction rope; 108, shaft seat; 109, swing arm; 201, roller; 202, first drive reel; 203, second drive reel; 204, guide limit block; 205, fixing rod. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the invention.

[0020] As shown in the attached figure, the integrated sludge anti-diffusion cleaning equipment for dyeing and printing wastewater sedimentation tanks provided by the present invention has its core structure integrated within the sedimentation tank 101.

[0021] An inlet 102 is provided in the middle of the side wall of the sedimentation tank 101, and an outlet 103 is provided at the top. A sludge collection plate 104 for collecting sludge is fixedly installed at the bottom of the tank. Multiple guide bars are fixed longitudinally on the collection plate 104, and a series of limiting rings 105 are vertically installed on each guide bar by a fixing rod 205.

[0022] For each guide bar, a sludge adsorption rope 106 made of fibrous material is provided. One end of the adsorption rope 106 is fixed to the inner wall of the sedimentation tank 101, and its main body passes through all the limiting rings 105 in that row in sequence, thereby forming a series of hanging U-shaped rope loops between adjacent limiting rings 105. The other end of the adsorption rope 106 is connected to and wound on the first drive reel 202, which is driven by the first motor.

[0023] A reset traction rope 107 passes sequentially through the U-shaped rope loop formed by all the adsorption ropes 106, with its two ends fixed to the pool wall and connected to the second drive shaft 203, which is driven by the second motor.

[0024] At the pool wall directly above the anchor points at both ends of each adsorption rope 106, an elastic support mechanism is installed. This mechanism includes a bearing 108 fixed to the pool wall, a swing rod 109 hinged to the bearing 108 via a pivot, and a roller 201 mounted on the free end of the swing rod 109. A reset traction rope 107 passes under the roller 201. A torsion spring is mounted on the pivot of the bearing 108, and its force causes the swing rod 109 to tend to swing downwards, thus ensuring that the roller 201 always applies a downward elastic pressure to the reset traction rope 107. Above the swing path of the swing rod 109, a guide limit block 204 is fixed to the pool wall to limit the maximum swing angle of the swing rod 109.

[0025] The equipment operates as follows: During normal sedimentation operations, as shown in the attached... Figure 1 As shown, the first drive reel 202 is in a relaxed state, and the sludge adsorption rope 106, under its own weight and the constraint of the reset traction rope 107, maintains an unfolded rope loop shape between the limiting rings 105. Dyeing and printing wastewater enters the sedimentation tank through the inlet 102. During the settling process, the suspended sludge is effectively captured and adsorbed by the large-area unfolded adsorption rope 106, accumulating on the surface and bottom of the rope, greatly reducing sludge resuspension caused by turbulence.

[0026] When the sedimentation tank needs to discharge sludge after operating for a period of time, the first motor is started, driving the first drive shaft 202 to rotate clockwise, winding up the adsorption rope 106. The adsorption rope 106 is tightened, and each U-shaped loop gradually contracts, eventually causing the entire adsorption rope 106 and the reset traction rope 107 threaded through it to be laid flat and attached to the surface of the sludge collection plate 104, as shown in the attached image. Figure 2 As shown. At this point, the surface of the sludge collection plate 104 is fully exposed, making it easy to thoroughly remove the sludge accumulated on the plate surface using a sludge scraper.

[0027] After the sludge is cleaned, the first motor is turned off, and the second motor is started, driving the second drive shaft 203 to rotate counterclockwise, tightening the reset traction rope 107. During the tightening process, the reset traction rope 107 overcomes the elastic downward pressure of the roller 201 through its upward tension, pushing the swing arm 109 to swing upward, while simultaneously causing the adsorption rope 106 threaded through it to reopen and form a working rope loop. After the adsorption rope 106 has completely returned to its working state, the second motor is turned off, and the second drive shaft 203 is slightly loosened. At this time, under the action of the torsion spring, the roller 201 presses down on the reset traction rope 107 to maintain it at a moderate tension, and the entire device automatically resets, ready for the next round of sedimentation.

[0028] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An integrated printing and dyeing wastewater sedimentation tank sludge anti-diffusion cleaning equipment, comprising a sedimentation tank (101), the side wall of the sedimentation tank (101) is provided with a water inlet (102) and a water outlet (103), and the bottom is provided with a sludge collecting plate (104), characterized in that: The sludge collecting plate (104) is provided with a plurality of guide strips, and a plurality of limiting rings (105) are fixed on each guide strip at intervals; the device further comprises a sludge adsorption rope (106) and a reset traction rope (107) provided corresponding to each guide strip, one end of the sludge adsorption rope (106) is fixed to the inner wall of the sedimentation tank (101), the other end is connected with a first rope winding shaft (202), and the sludge adsorption rope (106) sequentially passes through each limiting ring (105) on the corresponding guide strip to form a plurality of rope loops; the reset traction rope (107) sequentially passes through the rope loops of all the sludge adsorption ropes (106), and the two ends thereof are respectively fixed to the inner wall of the sedimentation tank (101) and the second rope winding shaft (203); the first rope winding shaft (202) and the second rope winding shaft (203) are respectively controlled to rotate by a driving device.

2. The integrated printing and dyeing wastewater sedimentation tank sludge anti-diffusion cleaning equipment according to claim 1, characterized in that: An elastic support mechanism is arranged above the fixed point of each end of the sludge adsorption rope (106) on the pool wall, the elastic support mechanism comprises an axle seat (108) fixed to the pool wall, a swing lever (109) hinged to the axle seat (108) through a rotating shaft, and a roller (201) installed at the free end of the swing lever (109), and the reset traction rope (107) passes below the roller (201).

3. The integrated printing and dyeing wastewater sedimentation tank sludge anti-diffusion cleaning equipment according to claim 2, characterized in that: A torsional spring is arranged on the rotating shaft of the axle seat (108), and the torsional spring provides an elastic force for pressing the roller (201) driven by the swing lever (109) downward to compress the reset traction rope (107).

4. The integrated printing and dyeing wastewater sedimentation tank sludge anti-diffusion cleaning equipment according to claim 3, characterized in that: A guide limiting block (204) limiting the maximum swing angle of the swing lever (109) is arranged above the swing path of the swing lever (109), and the guide limiting block (204) is fixed to the inner wall of the sedimentation tank (101).

5. The integrated printing and dyeing wastewater sedimentation tank sludge anti-diffusion cleaning equipment according to claim 1, characterized in that: The driving device comprises a first motor driving the first rope winding shaft (202) and a second motor driving the second rope winding shaft (203).

6. The integrated printing and dyeing wastewater sedimentation tank sludge anti-diffusion cleaning equipment according to claim 1, characterized in that: The limiting ring (105) is installed on the sludge collecting plate (104) through a vertically arranged fixing rod (205).

Images