A printing and dyeing wastewater recovery device

Abstract

The utility model relates to wastewater treatment equipment technical field, concretely relates to a kind of printing and dyeing wastewater recovery device, including pool body, first baffle and second baffle are equipped in pool body, first baffle and second baffle divide pool body into water inlet pool, flocculator and settling tank, the upper portion of first baffle is equipped with filter grating, overflow launder is equipped on second baffle, the side surface of filter grating is equipped with the dredging plate that can reciprocatingly move in flocculator, dredging needle for dredging filter grating is equipped on dredging plate, the side surface of pool body is equipped with water inlet pipe connected with water inlet pool, the side surface of pool body is equipped with overflow outlet connected with settling tank. The interception of larger solid impurities, fiber and floating matter in wastewater by filter grating can significantly improve the flocculation reaction efficiency of wastewater after entering flocculator, reduce the dosage of reagent, and improve the operation stability and treatment effect of the whole printing and dyeing wastewater recovery device.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment equipment technology, and more specifically, to a dyeing and printing wastewater recycling device. Background Technology

[0002] The dyeing and finishing industry generates large amounts of wastewater during the dyeing and finishing process. This wastewater typically contains various organic and inorganic pollutants, including fiber debris and suspended particles. Direct discharge without effective treatment will severely pollute water bodies and damage the ecological environment. Therefore, the treatment and recycling of dyeing and finishing wastewater is a key focus in the current environmental protection field.

[0003] Currently, flocculation and sedimentation processes are widely used in the treatment of dyeing and printing wastewater to remove suspended solids and some colloidal pollutants. However, in traditional processes, wastewater usually enters the flocculation reaction tank directly for treatment. Unfiltered wastewater often contains a large amount of large suspended solids, fiber debris, or floating impurities. These impurities not only affect the mixing uniformity and reaction efficiency of the flocculant but also easily cause sedimentation in the reaction tank or blockage in the pipes, reducing the operational stability of the entire treatment system and the quality of the effluent. Utility Model Content

[0004] The purpose of this invention is to provide a dyeing and printing wastewater recycling device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A dyeing and printing wastewater recycling device includes a pool body with a first partition and a second partition inside the pool body, which divide the pool body into an inlet pool, a flocculation pool, and a sedimentation pool. A filter screen is provided above the first partition, and an overflow trough is provided on the second partition. A rotatable stirring shaft is provided inside the flocculation pool, and stirring blades are provided on the stirring shaft. A dredging plate located inside the flocculation pool and movable reciprocating is provided on the side of the filter screen, and dredging needles for dredging the filter screen are provided on the dredging plate. An inlet pipe connected to the inlet pool is provided on the side of the pool body, and an overflow outlet connected to the sedimentation pool is provided on the side of the pool body.

[0007] Furthermore, mounting blocks are provided on opposite sides of the pool body. Each mounting block has a circular cavity, and a circular rod is provided inside the cavity. A slidable circular block is fitted onto the circular rod. An opening communicating with the circular cavity is provided on the side of the mounting block. A plug is provided at the opening. A spring is fitted onto the circular rod between the plug and the circular block. A moving groove is provided on the upper end face of the mounting block. A vertical block extending into the moving groove and connected to the circular block is provided outside the mounting block. A rod connected to the unblocking plate is provided between the vertical blocks.

[0008] Furthermore, a connecting rod is provided on the side of the unblocking plate, a disc is provided on the connecting rod, and a cam corresponding to the disc is provided on the stirring shaft.

[0009] Furthermore, a plate is provided above the flocculation tank, and a motor for driving the stirring shaft to rotate is provided on the plate.

[0010] Furthermore, a guide plate is provided inside the sedimentation tank, and a flow guide is formed between the lower end face of the guide plate and the bottom wall of the sedimentation tank.

[0011] Furthermore, an upper horizontal bar is provided opposite to the sedimentation tank, and multiple through slots are evenly spaced on the upper horizontal bar. A lower horizontal bar is provided opposite to the upper horizontal bar in the sedimentation tank, and a limiting slot corresponding to the through slot is provided on the lower horizontal bar. An inclined plate is provided between the through slot and the limiting slot.

[0012] Furthermore, the bottom of the pool is equipped with conical hoppers that connect to the inlet pool, flocculation pool, and sedimentation pool, and the bottom of the conical hoppers is equipped with sewage pipes.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model, by using a filter grid to intercept larger solid impurities, fibers and floating matter in wastewater, can significantly improve the flocculation reaction efficiency of wastewater after it enters the flocculation tank, reduce the amount of reagents used, and improve the operational stability and treatment effect of the entire dyeing and printing wastewater recovery device.

[0015] 2. This utility model, through a transmission structure with cam drive and spring reset, enables the unblocking plate to move continuously and evenly back and forth along the surface of the filter grid. The unblocking needles set on it can periodically insert into the gaps of the filter grid to effectively unblock the clogging particles, prevent the filter grid from becoming clogged and failing during long-term use, improve the operational stability and automation of the entire wastewater treatment device, and make the unblocking action and flocculation and stirring process synchronized, without the need for additional power components to drive it, effectively reducing system energy consumption and maintenance costs, while ensuring that the filter grid is always in a smooth state, improving the continuous processing capacity of the device. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a dyeing and printing wastewater recycling device according to the present invention.

[0017] Figure 2 This is a cross-sectional perspective view of a dyeing and printing wastewater recycling device according to the present invention.

[0018] Figure 3 This is a schematic diagram of the internal components of the mounting block in this utility model.

[0019] Figure 4 This is a schematic diagram showing the installation of the inclined plate between the upper and lower crossbars in this utility model.

[0020] The labels in the diagram represent the following: 100, pool body; 101, first baffle; 102, second baffle; 103, inlet pool; 104, flocculation pool; 105, settling pool; 106, filter screen; 107, overflow trough; 108, stirring shaft; 109, unclogging plate; 110, unclogging needle; 111, inlet pipe; 112, overflow outlet; 113, conical hopper; 114, drain pipe; 200, safety... Components: 201, round rod; 202, round block; 203, plug cap; 204, spring; 205, moving groove; 206, vertical block; 207, rod body; 208, connecting rod; 209, disc; 210, cam; 211, motor; 300, guide plate; 301, flow guide; 400, upper crossbar; 401, through groove; 402, lower crossbar; 403, limiting groove; 404, inclined plate. Detailed Implementation

[0021] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments are merely illustrative of this utility model and are not intended to limit it.

[0022] The following is in conjunction with the appendix Figures 1-4 This embodiment will be described in further detail.

[0023] Please see Figures 1-4 This embodiment of a dyeing and printing wastewater recycling device includes a tank 100. A first partition 101 and a second partition 102 are provided inside the tank 100. The first partition 101 and the second partition 102 are sealed and fixedly disposed between the inner walls of the tank 100. The first partition 101 and the second partition 102 divide the tank 100 into an inlet tank 103, a flocculation tank 104, and a sedimentation tank 105. The inlet tank 103, flocculation tank 104, and sedimentation tank 105 are arranged sequentially from left to right. A filter grid 106 is provided above the first partition 101, and vertical plates fixedly connected to the inner walls of the tank 100 are provided on both sides of the filter grid 106. The vertical plate is used to limit the filter grid 106. The second partition 102 is provided with an overflow groove 107. The flocculation tank 104 is provided with a rotatable stirring shaft 108. The stirring shaft 108 is provided with stirring blades. The stirring blades are fixedly connected to the stirring shaft 108. The side of the filter grid 106 is provided with a dredging plate 109 located in the flocculation tank 104 and capable of reciprocating. The dredging plate 109 is provided with a dredging needle 110 for dredging the filter grid 106. The side of the tank body 100 is provided with an inlet pipe 111 connected to the inlet tank 103. The side of the tank body 100 is provided with an overflow outlet 112 connected to the sedimentation tank 105.

[0024] In this embodiment, in order to install the stirring shaft 108, a plate is provided above the flocculation tank 104. The plate is fixedly connected to the tank body 100. The stirring shaft 108 is installed on the plate through bearings. A motor 211 for driving the stirring shaft 108 to rotate is provided on the plate.

[0025] In this embodiment, when the dyeing and printing wastewater needs to be treated, the wastewater is first injected into the inlet pool 103 of the pool body 100 through the inlet pipe 111. The inlet pool 103 serves as a pretreatment area for the wastewater, which is used to accommodate the initially entering wastewater and achieve preliminary sedimentation.

[0026] As wastewater is continuously injected, it flows upward in the inlet pool 103, passes through the filter grid 106 located above the first baffle 101, and then enters the flocculation tank 104. The filter grid 106 intercepts larger solid impurities, fibers, and floating matter in the wastewater, preventing them from entering the downstream treatment area. During the filtration process, impurities may adhere and clog the filter grid 106. To ensure its normal permeability, a cleaning plate 109 is installed on one side of the filter grid 106. The cleaning plate 109 can move back and forth along the direction of the filter grid 106 within the flocculation tank 104. It is equipped with multiple cleaning needles 110, which can periodically perform mechanical insertion cleaning of the grid pores to ensure the filtration effect of the filter grid 106.

[0027] After being filtered by the filter screen 106, the wastewater flows into the flocculation tank 104. During this process, flocculant can be added to the flocculation tank 104. The stirring shaft 108 is driven to rotate by the motor 211, and the stirring shaft 108 drives the stirring blades to rotate, which is used to fully mix the flocculant and the wastewater.

[0028] As wastewater is continuously injected, the wastewater that has been mixed in the flocculation tank 104 overflows into the sedimentation tank 105 through the overflow channel 107 set at the top of the second baffle 102. After being treated in the sedimentation tank 105, the wastewater enters the subsequent sedimentation tank through the overflow outlet 112 for sedimentation treatment.

[0029] In this embodiment, by using the filter grid 106 to intercept larger solid impurities, fibers and floating objects in the wastewater, the flocculation reaction efficiency after the wastewater enters the flocculation tank 104 can be significantly improved, the amount of reagents used can be reduced, and the operational stability and treatment effect of the entire dyeing and printing wastewater recovery device can be improved.

[0030] Please see Figures 1-4In this embodiment, mounting blocks 200 are provided on both sides of the pool body 100, and the mounting blocks 200 are fixedly connected to the pool body 100. A circular cavity is provided inside the mounting block 200, and a circular rod 201 is provided inside the cavity. The circular rod 201 is fixedly installed inside the cavity, and a slidable circular block 202 is sleeved on the circular rod 201. The circular block 202 is slidably installed inside the cavity and slidably sleeved outside the circular rod 201. An opening communicating with the circular cavity is provided on the side of the mounting block 200, and a plug cap 203 is provided at the opening. Specifically, the plug cap 203 is threadedly connected to the opening to facilitate the installation of components inside the cavity. A spring 204 is sleeved on the circular rod 201 between the plug cap 203 and the circular block 202. Rubber pads are provided on the sides of the plug cap 203 and the circular block 202, contacting both ends of the spring 204. The rubber pads are used to buffer the impact force during the compression and rebound process of the spring 204, improving the stability of the structure and the smoothness of the rebound. The upper surface of the mounting block 200 is provided with a movable groove 205, which communicates with the circular cavity. A vertical block 206 extends into the movable groove 205 and is connected to the circular block 202. Specifically, the vertical block 206 is fixedly connected to the circular block 202, and slidably connected to the movable groove 205. A rod 207 connected to the unblocking plate 109 is provided between the vertical blocks 206. Specifically, both ends of the rod 207... Each is fixedly connected to the corresponding vertical block 206. The rod body 207 is fixedly connected to the unblocking plate 109. The side of the unblocking plate 109 is provided with a connecting rod 208. One end of the connecting rod 208 is fixedly connected to the unblocking plate 109. A disc 209 is provided on the connecting rod 208. The disc 209 is fixedly connected to the other end of the connecting rod 208. A cam 210 corresponding to the disc 209 is provided on the stirring shaft 108. The cam 210 is fixedly connected to the stirring shaft 108.

[0031] In this embodiment, the rotation of the stirring shaft 108 drives the cam 210 to rotate. During the rotation of the cam 210, its protruding part pushes the disc 209. The disc 209 pushes the connecting rod 208 to move the unblocking plate 109 toward the filter grid 106, so that the unblocking needle 110 can be inserted into the filter grid 106. As the cam 210 continues to rotate, when the protruding part of the cam 210 no longer pushes the disc 209, the spring 204 drives the round block 202 to reset under its elastic force, thereby driving the unblocking plate 109 to move away from the filter grid 106, that is, the unblocking needle 110 disengages from the filter grid 106, completing one reciprocating motion. This embodiment utilizes a transmission structure driven by a cam 210 and reset by a spring 204. This allows the unblocking plate 109 to move continuously and evenly back and forth along the surface of the filter grid 106. The unblocking needles 110 on the plate can periodically insert into the gaps of the filter grid 106, effectively clearing blockage particles and preventing the filter grid 106 from becoming clogged and failing during long-term use. This improves the operational stability and automation of the entire wastewater treatment device. The unblocking action is synchronized with the flocculation and mixing process, eliminating the need for additional power components, effectively reducing system energy consumption and maintenance costs. Simultaneously, it ensures that the filter grid 106 remains unobstructed, enhancing the device's continuous processing capacity.

[0032] Specifically, in order to make the unblocking needle 110 cooperate with the filter grid 106, in this embodiment, when the filter grid 106 is inserted between the relatively vertical plates, the filter grid 106 is fixed by bolts so that the filter grid 106 is fixed.

[0033] Please see Figures 1-4 In this embodiment, a guide plate 300 is provided inside the sedimentation tank 105. The guide plate 300 is sealed and fixedly connected to the inner wall of the tank body 100. A flow guide 301 is formed between the lower end face of the guide plate 300 and the bottom wall of the sedimentation tank 105.

[0034] An upper horizontal bar 400 is provided opposite to the sedimentation tank 105. The upper horizontal bar 400 is fixedly connected to the inner wall of the tank body 100. Multiple through grooves 401 are evenly spaced on the upper horizontal bar 400. A lower horizontal bar 402 is provided opposite to the upper horizontal bar 400 in the sedimentation tank 105. The lower horizontal bar 402 is fixedly connected to the inner wall of the tank body 100. A limiting groove 403 corresponding to the through groove 401 is provided on the lower horizontal bar 402. An inclined plate 404 is provided between the through groove 401 and the limiting groove 403. The inclined plate 404 is set at 60 degrees.

[0035] In this embodiment, the guide plate 300 is used to slow down the water flow speed and guide the water flow direction, allowing it to enter the sedimentation tank 105 from the lower guide port 301. Then, the water flows from top to bottom through the inclined plate 404, forming an inclined sedimentation path. Utilizing gravity and the effect of the inclined plate 404, the flocculants settle rapidly, and the purified water gradually floats to the surface. The settled water continues to rise to the top of the tank 100 and flows out through the overflow port 112 located on the upper side wall of the tank 100, entering the subsequent sedimentation tank for further sedimentation treatment.

[0036] Please see Figures 1-4 In this embodiment, the bottom of the pool body 100 is provided with a conical hopper 113 that is connected to the inlet pool 103, the flocculation pool 104 and the sedimentation pool 105. The bottom of the conical hopper 113 is provided with a drain pipe 114, and a valve is provided on the drain pipe 114.

[0037] In this embodiment, the conical hopper 113 is used to collect the settled sludge in a centralized manner. The sludge can be discharged periodically through the sewage pipe 114 set at the bottom of the conical hopper 113 to maintain the processing capacity of the settling tank 105.

[0038] In use, wastewater is first injected into the inlet pool 103 of the pool body 100 through the inlet pipe 111. The inlet pool 103 serves as a pretreatment area for wastewater, used to accommodate the initially entering wastewater and achieve preliminary sedimentation. As wastewater is continuously injected, the wastewater in the inlet pool 103 flows upward and flows into the flocculation pool 104 through the filter grid 106 set on the upper part of the first partition 101. Flocculant is added into the flocculation pool 104, and the stirring shaft 108 is driven to rotate by the motor 211. The stirring shaft 108 drives the stirring blades to rotate, which is used to fully mix the flocculant and the wastewater. The mixed wastewater overflows through the overflow trough 107 set on the upper part of the second partition 102, and flows into the sedimentation pool 105 through the guide plate 300 and the guide port 301. Then the water flows from bottom to top through the inclined plate 404, forming an inclined sedimentation path. The flocculants settle quickly by using gravity and the effect of the inclined plate 404. The purified water gradually floats to the top and continues to rise to the top of the pool body 100. It then flows out through the overflow port 112 set on the upper side wall of the pool body 100 and enters the subsequent sedimentation pool for sedimentation treatment.

[0039] In actual use, a support frame will be installed on the side wall of the pool body 100 to support the pool body 100.

[0040] In summary, the above description is only a preferred embodiment of the present utility model. All equivalent changes and modifications made within the scope of the patent application of the present utility model shall fall within the scope of the patent of the present utility model.

Claims

1. A printing and dyeing wastewater recovery device comprising a pool body (100), characterized in that: The pool body (100) is provided with a first partition (101) and a second partition (102), which divide the pool body (100) into an inlet pool (103), a flocculation pool (104), and a sedimentation pool (105). A filter screen (106) is provided above the first partition (101), and an overflow trough (107) is provided on the second partition (102). A rotatable stirring shaft (108) is provided in the flocculation pool (104). (108) is equipped with stirring blades, and the side of the filter grid (106) is equipped with a dredging plate (109) located in the flocculation tank (104) and capable of reciprocating movement. The dredging plate (109) is equipped with a dredging needle (110) for dredging the filter grid (106). The side of the tank body (100) is equipped with an inlet pipe (111) connected to the inlet tank (103), and the side of the tank body (100) is equipped with an overflow outlet (112) connected to the sedimentation tank (105).

2. A printing and dyeing wastewater recovery device according to claim 1, characterized in that: The two sides of the pool body (100) are provided with mounting blocks (200), and the mounting blocks (200) are provided with a circular cavity. A circular rod (201) is provided in the circular cavity. A slidable circular block (202) is sleeved on the circular rod (201). The side of the mounting block (200) is provided with an opening that communicates with the circular cavity. A plug cap (203) is provided at the opening. A spring (204) is sleeved on the circular rod (201) between the plug cap (203) and the circular block (202). A moving groove (205) is provided on the upper end face of the mounting block (200). A vertical block (206) is provided outside the mounting block (200) that extends into the moving groove (205) and is connected to the circular block (202). A rod (207) connected to the unblocking plate (109) is provided between the vertical blocks (206).

3. A printing and dyeing wastewater recovery device according to claim 2, characterized in that: The side of the unblocking plate (109) is provided with a connecting rod (208), the connecting rod (208) is provided with a disc (209), and the stirring shaft (108) is provided with a cam (210) corresponding to the disc (209).

4. The printing and dyeing wastewater recovery device according to claim 1, characterized in that: A plate is provided above the flocculation tank (104), and a motor (211) is provided on the plate to drive the stirring shaft (108) to rotate.

5. A printing and dyeing wastewater recovery device according to claim 1, characterized in that: The sedimentation tank (105) is provided with a guide plate (300), and a flow guide (301) is formed between the lower end face of the guide plate (300) and the bottom wall of the sedimentation tank (105).

6. A printing and dyeing wastewater recovery device according to claim 1, characterized in that: The sedimentation tank (105) is provided with an upper horizontal bar (400) facing each other. Multiple through grooves (401) are evenly spaced on the upper horizontal bar (400). The sedimentation tank (105) is provided with a lower horizontal bar (402) located below the upper horizontal bar (400). The lower horizontal bar (402) is provided with a limiting groove (403) corresponding to the through groove (401). An inclined plate (404) is provided between the through groove (401) and the limiting groove (403).

7. A printing and dyeing wastewater recovery device according to claim 1, characterized in that: The bottom of the pool body (100) is provided with a conical bucket (113) that is connected to the inlet pool (103), the flocculation pool (104) and the sedimentation pool (105), and the bottom of the conical bucket (113) is provided with a sewage pipe (114).

Images