Printing and dyeing wastewater precipitation device

Abstract

The utility model relates to the technical field of printing and dyeing, in particular to a printing and dyeing wastewater settling device which comprises a settling tank and a tank cover detachably connected to the top of the settling tank, and a buffer flow guide mechanism is arranged in the settling tank and used for slowly guiding printing and dyeing wastewater into the settling tank. A water inlet pipe used for conveying printing and dyeing wastewater into the buffer flow guide mechanism is arranged on the box cover, a vertical plate is fixedly installed in the settling box, a horizontally-arranged filter screen is fixedly connected between the vertical plate and the inner wall of the settling box, and a clear water area is formed above the filter screen; the scraping plate assembly is used for scraping impurities attached to the bottom of the filter screen, the water pumping assembly is used for pumping water out of the clear water area, and the water pumping assembly works to drive the scraping plate assembly to work; the filter screen is arranged below the clear water area, so that when water in the clear water area is sucked, the filter screen can block sediments below the filter screen, and the sediments are prevented from being sucked away.

Description

Technical Field

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

[0002] A sedimentation device for dyeing and printing wastewater is an important piece of equipment used to treat suspended solids and colored substances in dyeing and printing wastewater. After the wastewater enters the sedimentation device through the inlet pipe, the suspended solids and colored substances gradually settle to the bottom due to gravity, forming sludge. The clear water after treatment at the top is generally pumped out for further purification. For example, patent application number 2022234135774 discloses a sedimentation device for dyeing and printing wastewater. This patent introduces dyeing and printing wastewater through a feed inlet. The wastewater falls onto the surface of the guide plate and flows along the guide plate to the guide frame. Then, the wastewater falls onto the baffle plate. The baffle plate drives the rotating rod to rotate, thus buffering the water flow and preventing the water from directly entering the sedimentation frame, which would cause the sediment at the bottom to float to the surface, thereby improving the sedimentation effect of the sedimentation frame. However, when the pump in this patent extracts the clear water after treatment at the top, the suction force can easily pull out the sediment along with it, so improvements are needed. Utility Model Content

[0003] The purpose of this invention is to provide a sedimentation device for dyeing and printing wastewater to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A sedimentation device for dyeing and printing wastewater includes a sedimentation tank and a detachable cover connected to the top of the sedimentation tank. The sedimentation tank is equipped with a buffer guiding mechanism for slowly guiding the dyeing and printing wastewater into the sedimentation tank. The cover is equipped with an inlet pipe for conveying the dyeing and printing wastewater into the buffer guiding mechanism. A vertical plate is fixedly installed inside the sedimentation tank, and a horizontally arranged filter screen is fixedly connected between the vertical plate and the inner wall of the sedimentation tank. A clear water zone is formed above the filter screen. The device also includes a scraper assembly for scraping off debris attached to the bottom of the filter screen and a pumping assembly for pumping water out of the clear water zone. The operation of the pumping assembly drives the scraper assembly to operate.

[0006] Furthermore, the buffering and guiding mechanism includes a guide pipe, a first buffer component, and a second buffer component; the guide pipe is fixedly installed inside the sedimentation tank, and both the first and second buffer components are located inside the guide pipe, with the first buffer component positioned above the second buffer component.

[0007] Furthermore, the first buffer component includes a shaft rotatably disposed within the guide tube, with four sets of buffer plates arranged circumferentially on the shaft. Each set of buffer plates consists of multiple buffer blocks spaced apart, and one end of each buffer block is fixedly connected to the shaft.

[0008] Furthermore, rotating seats are rotatably connected to the inner walls on both sides of the guide tube. The rotating seats are provided with U-shaped grooves that are adapted to the shaft. Threaded holes are provided at both ends of the shaft. Through holes are provided in the U-shaped grooves. Locking bolts are also included. The locking bolts pass through the through holes and are threadedly connected to the threaded holes.

[0009] Furthermore, the second buffer includes at least two guide plates arranged from top to bottom, the guide plates are inclined, and two adjacent guide plates are respectively fixedly connected to both sides of the inner wall of the guide pipe.

[0010] Furthermore, the upper surface of the deflector plate has a wavy groove surface.

[0011] Furthermore, the water pumping assembly includes a water pump, a pumping pipe, and an outlet pipe. The water pump is installed on the outer wall of the sedimentation tank. One end of the pumping pipe is connected to the inlet of the water pump, and the other end of the pumping pipe is located in the clear water zone with the pipe opening facing vertically downwards.

[0012] Furthermore, the scraper assembly includes an impeller, a scraper, and a rotating shaft rotatably installed inside the water pumping pipe. The rotating shaft is vertically arranged, the impeller is fixedly installed on the rotating shaft, the impeller is located inside the water pumping pipe, the bottom end of the rotating shaft extends to the bottom of the filter screen, the scraper is fixedly connected to the bottom end of the rotating shaft, and the upper part of the scraper abuts against the bottom of the filter screen.

[0013] Furthermore, a drain pipe is provided on one side of the sedimentation tank, and a valve is installed on the drain pipe.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This dyeing and printing wastewater sedimentation device has a filter screen installed below the clear water zone. When the water in the clear water zone is pumped out, the filter screen can block the sediment below, preventing the sediment from being pumped away. In addition, a scraper assembly is installed to effectively prevent the sediment from being adsorbed at the bottom of the filter screen.

[0016] This dyeing and printing wastewater sedimentation device, through the dual buffering effect of the first and second buffer components when the dyeing and printing wastewater falls, can greatly reduce the impact force on the sedimentation tank when the wastewater falls into the sedimentation tank. It can prevent the sediment at the bottom from floating due to excessive impact force when the wastewater falls into the sedimentation tank, thus improving the sedimentation effect of the sedimentation tank. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 In this utility model Figure 1 A schematic diagram of the structure after removing the lid.

[0019] Figure 3 This is one of the schematic diagrams of the internal structure of the sedimentation tank in this utility model.

[0020] Figure 4 This is the second schematic diagram of the internal structure of the sedimentation tank in this utility model.

[0021] Figure 5 This is a cross-sectional schematic diagram of the guide tube in this utility model.

[0022] Figure 6 This is a schematic diagram of the structure of the first buffer component in this utility model.

[0023] Figure 7 This is a schematic diagram of the scraper assembly and the water pumping pipe in this utility model.

[0024] The meanings of the labels in the diagram are as follows: 10. Sedimentation tank; 11. Tank cover; 12. Inlet pipe; 13. Drain pipe; 14. Vertical plate; 20. Guide pipe; 21. First buffer component; 210. Shaft; 211. Threaded hole; 212. Buffer block; 213. Rotating seat; 214. U-shaped groove; 215. Through hole; 216. Locking bolt; 22. Guide plate; 220. Wave groove; 30. Water pump; 31. Pumping pipe; 40. Filter screen; 50. Strip plate; 51. Rotating shaft; 52. Impeller; 53. Scraper. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] This utility model provides a technical solution:

[0027] A sedimentation device for dyeing and printing wastewater, please refer to [link / reference]. Figures 1-7 It includes a sedimentation tank 10 and a detachable cover 11 connected to the top of the sedimentation tank 10. Specifically, the cover 11 can be detachably installed on the top of the sedimentation tank 10 by bolts and nuts. After removing the cover 11, it is convenient to clean the inside of the sedimentation tank 10.

[0028] The sedimentation tank 10 is equipped with a buffer flow guiding mechanism, which is used to slowly guide the dyeing and printing wastewater into the sedimentation tank 10. This can buffer the dyeing and printing wastewater and prevent the dyeing and printing wastewater from being directly put into the sedimentation tank 10, causing the sediment at the bottom to float to the surface.

[0029] Specifically, the buffering and guiding mechanism includes a guide pipe 20, a first buffer 21, and a second buffer. The guide pipe 20 is fixedly installed in the sedimentation tank 10 by bolts. The first buffer 21 and the second buffer are both located in the guide pipe 20, with the first buffer 21 located above the second buffer.

[0030] The first buffer component 21 includes a shaft 210 rotatably disposed within the guide tube 20. The shaft 210 is horizontally disposed and arranged along the length direction of the guide tube 20. Four sets of buffer plates are provided on the shaft 210 along its circumference. Each set of buffer plates consists of multiple buffer blocks 212 spaced apart. One end of the buffer block 212 is fixedly connected to the shaft 210. When the buffer block 212 is in a horizontal state, the other end of the buffer block 212 is close to the inner wall of the guide tube 20.

[0031] Rotating seats 213 are rotatably connected to the inner walls on both sides of the guide tube 20. The rotating seats 213 can be rotated manually or assisted by mechanical parts. The rotating seats 213 are provided with U-shaped grooves 214 that are adapted to the shaft 210. The shaft 210 is provided with threaded holes 211 at both ends. The U-shaped grooves 214 are provided with through holes 215. It also includes a locking bolt 216, which passes through the through holes 215 and is threadedly connected to the threaded holes 211.

[0032] After the shaft 210 is placed into the U-shaped groove 214, align the through hole 215 with the threaded hole 211, and then tighten the locking bolt 216 to fix the shaft 210 and the rotating seat 213 together.

[0033] When the dyeing and printing wastewater enters the guide pipe 20, it will come into contact with the buffer block 212 of the first buffer 21. Under the gravity of the dyeing and printing wastewater, the buffer block 212 will rotate. The buffer block 212 can effectively reduce the impact force when the dyeing and printing wastewater falls down, which can reduce the impact force when the dyeing and printing wastewater falls into the sedimentation tank 10 and improve the sedimentation effect of the sedimentation tank 10.

[0034] In addition, the shaft 210 and the buffer block 212 in this utility model are detachable, which facilitates cleaning and maintenance.

[0035] See Figure 5 The second buffer includes at least two guide plates 22 arranged from top to bottom. The guide plates 22 are inclined, and the two adjacent guide plates 22 are respectively fixedly connected to the inner walls of the guide pipe 20. After the dyeing wastewater is buffered and the impact force is reduced by the first buffer, it falls into the guide plate 22. The guide plate 22 can buffer the dyeing wastewater again, which can further reduce the impact force of the dyeing wastewater falling down. It can prevent the dyeing wastewater from having too great an impact force on the sedimentation tank 10 when it falls into the sedimentation tank 10, which would cause the sediment at the bottom to float up.

[0036] The upper surface of the guide plate 22 is a corrugated groove 220. The design of the corrugated groove 220 can further buffer the water flow when the dyeing wastewater flows downward on the guide plate 22.

[0037] This application utilizes the dual buffering effect of the first buffer 21 and the second buffer to significantly reduce the impact force on the sedimentation tank 10 when the dyeing wastewater falls into the sedimentation tank 10. This prevents the sediment from rising due to excessive impact force when the dyeing wastewater falls into the sedimentation tank 10, thereby improving the sedimentation effect of the sedimentation tank 10.

[0038] The cover 11 is provided with an inlet pipe 12 for conveying dyeing wastewater to the buffer guide mechanism. The guide pipe 20 is located directly below the inlet pipe 12. Dyeing wastewater can be input through the inlet pipe 12, first enters the guide pipe 20, and after being buffered by the first buffer 21 and the second buffer, it falls into the sedimentation tank 10.

[0039] A vertical plate 14 is fixedly installed inside the sedimentation tank 10. A horizontally arranged filter screen 40 is fixedly connected between the vertical plate 14 and the inner wall of the sedimentation tank 10. A clear water zone is formed above the filter screen 40. The system also includes a scraper assembly for scraping off debris attached to the bottom of the filter screen 40 and a pumping assembly for pumping water out of the clear water zone. The operation of the pumping assembly drives the scraper assembly to work.

[0040] The pumping assembly includes a water pump 30, a pumping pipe 31, and an outlet pipe. The water pump 30 is installed on the outer wall of the sedimentation tank 10. One end of the pumping pipe 31 is connected to the inlet of the water pump 30, and the other end of the pumping pipe 31 is located in the clear water zone with the pipe opening facing vertically downward. One end of the outlet pipe is connected to the outlet of the water pump 30, and the other end of the outlet pipe can be connected to subsequent wastewater purification equipment.

[0041] Starting the water pump 30 will extract water from the clear water zone. Of course, when extracting water from the clear water zone, no more wastewater will be added to the sedimentation tank 10.

[0042] When drawing water from the clear water area, there will be a certain suction at the lower part of the other end of the water pipe 31, which can easily draw away the sediment. The filter screen 40 can effectively block the sediment and prevent it from being drawn away.

[0043] Although filter screen 40 alone can block sediment, due to the presence of suction, sediment is easily adsorbed at the bottom of filter screen 40 (located at the bottom of filter screen 40 at the lower part of water pipe 31). To prevent sediment from being adsorbed at the bottom of filter screen 40, a scraper assembly is designed.

[0044] The scraper assembly includes an impeller 52, a scraper 53, and a rotating shaft 51 rotatably installed inside the water pump pipe 31. The rotating shaft 51 is vertically arranged, and a strip plate 50 is fixedly connected inside the water pump pipe 31. The upper part of the rotating shaft 51 is rotatably connected to the strip plate 50. The impeller 52 is fixedly installed on the rotating shaft 51 and is located inside the water pump pipe 31. The bottom end of the rotating shaft 51 extends to the bottom of the filter screen 40. The scraper 53 is fixedly connected to the bottom end of the rotating shaft 51, and the upper part of the scraper 53 abuts against the bottom of the filter screen 40.

[0045] When the water pipe 31 is pumping water, the water flow will drive the impeller 52 to rotate, which in turn drives the shaft 51 and scraper 53 to rotate. This allows the scraper 53 to scrape the bottom of the filter screen 40, preventing sediment from being adsorbed at the bottom of the filter screen 40 and causing blockage.

[0046] A drain pipe 13 is provided on one side of the sedimentation tank 10. A valve is installed on the drain pipe 13. When the water in the clear water area is drawn out, the valve can be opened to discharge the sediment at the bottom.

Claims

1. A sedimentation device for dyeing and printing wastewater, comprising a sedimentation tank (10) and a cover (11) detachably connected to the top of the sedimentation tank (10), characterized in that: The sedimentation tank (10) is equipped with a buffer flow guiding mechanism, which is used to slowly guide the dyeing and printing wastewater into the sedimentation tank (10). The tank cover (11) is equipped with an inlet pipe (12) for conveying the dyeing and printing wastewater into the buffer flow guiding mechanism. A vertical plate (14) is fixedly installed inside the sedimentation tank (10). A horizontally arranged filter screen (40) is fixedly connected between the vertical plate (14) and the inner wall of the sedimentation tank (10). A clear water zone is formed above the filter screen (40). The system also includes a scraper assembly for scraping off the debris attached to the bottom of the filter screen (40) and a pumping assembly for pumping out the water in the clear water zone. The operation of the pumping assembly drives the scraper assembly to work.

2. The sedimentation device for dyeing and printing wastewater according to claim 1, characterized in that: The buffer flow guiding mechanism includes a flow guiding pipe (20), a first buffer (21), and a second buffer; the flow guiding pipe (20) is fixedly installed in the sedimentation tank (10), and the first buffer (21) and the second buffer are both located in the flow guiding pipe (20), with the first buffer (21) located above the second buffer.

3. The sedimentation device for dyeing and printing wastewater according to claim 2, characterized in that: The first buffer (21) includes a shaft (210) rotatably disposed in the guide tube (20). Four sets of buffer plates are provided on the shaft (210) along its circumference. Each set of buffer plates consists of multiple buffer blocks (212) with gaps. One end of the buffer block (212) is fixedly connected to the shaft (210).

4. The sedimentation device for dyeing and printing wastewater according to claim 3, characterized in that: The inner walls of both sides of the guide tube (20) are rotatably connected to rotating seats (213). The rotating seats (213) are provided with U-shaped grooves (214) that are compatible with the shaft (210). The shaft (210) is provided with threaded holes (211) at both ends. The U-shaped groove (214) is provided with through holes (215). It also includes a locking bolt (216). The locking bolt (216) passes through the through hole (215) and is threadedly connected to the threaded hole (211).

5. A sedimentation device for dyeing and printing wastewater according to claim 2, characterized in that: The second buffer includes at least two guide plates (22) arranged from top to bottom. The guide plates (22) are inclined and two adjacent guide plates (22) are fixedly connected to the inner wall of the guide pipe (20) on both sides.

6. The sedimentation device for dyeing and printing wastewater according to claim 5, characterized in that: The upper surface of the guide plate (22) is a wave groove (220) surface.

7. The sedimentation device for dyeing and printing wastewater according to claim 1, characterized in that: The pumping assembly includes a water pump (30) and a pumping pipe (31). The water pump (30) is installed on the outer wall of the sedimentation tank (10). One end of the pumping pipe (31) is connected to the water inlet of the water pump (30), and the other end of the pumping pipe (31) is located in the clear water area with the pipe opening facing vertically downward.

8. The sedimentation device for dyeing and printing wastewater according to claim 7, characterized in that: The scraper assembly includes an impeller (52), a scraper (53), and a rotating shaft (51) rotatably installed inside the water pumping pipe (31). The rotating shaft (51) is vertically arranged, and the impeller (52) is fixedly installed on the rotating shaft (51). The impeller (52) is located inside the water pumping pipe (31). The bottom end of the rotating shaft (51) extends to the bottom of the filter screen (40). The scraper (53) is fixedly connected to the bottom end of the rotating shaft (51), and the upper part of the scraper (53) abuts against the bottom of the filter screen (40).

9. A sedimentation device for dyeing and printing wastewater according to claim 1, characterized in that: A drain pipe (13) is provided on one side of the sedimentation tank (10), and a valve is installed on the drain pipe (13).

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