Electrophoresis wastewater continuous treatment device

Abstract

The invention discloses an electrophoresis wastewater continuous treatment device, and relates to the technical field of sewage treatment devices. Comprising a wastewater buffer tank, a regulating tank and a continuous sedimentation tank, a liquid inlet pipe is arranged at the top of the wastewater buffer tank; the wastewater buffer tank is communicated with the regulating tank through a plurality of siphons; a stirring mechanism and a dosing mechanism are arranged in the regulating tank; the regulating tank is communicated with the continuous sedimentation tank through a conveying pipe; a conveying pump is arranged on the conveying pipe; the interior of the continuous sedimentation tank is divided into at least three cavities, every two adjacent cavities are separated through a vertical baffle and an inclined screen plate which are connected, and the inclined screen plate is located above the vertical baffle and inclines towards the liquid movement direction; the heights of the multiple vertical baffles are gradually decreased in the liquid movement direction, and a liquid discharging pipe is arranged at the bottom of the last cavity. The electrophoresis wastewater treatment device can temporarily store electrophoresis wastewater, the electrophoresis wastewater in the wastewater buffer pool is extracted in stages through the adjusting pool for adjusting treatment, continuous treatment of the electrophoresis wastewater is achieved through the continuous sedimentation pool, and the treatment efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of sewage treatment devices, and in particular to a continuous treatment device for electrophoresis wastewater. Background Art

[0002] Electrophoretic coating is a special coating formation method with the characteristics of water solubility, non-toxicity, and easy automation control. It is widely used in the automotive, electronics, building materials, hardware and other industries. As a result, electrophoretic wastewater is produced and becomes a widely used industrial wastewater. The wastewater has the characteristics of many types of pollutants and complex components. Its treatment methods mainly include coagulation, biochemical treatment, membrane separation, etc. The coagulation method is to add inorganic coagulants or polymer coagulants to the wastewater to destroy the sedimentation stability of the solution, so that it agglomerates, precipitates, and forms agglomerates. This method of wastewater treatment is widely used due to its low investment and convenient operation. However, during coagulation and sedimentation, it needs to be left to stand for a long time in the sedimentation tank, and it cannot be treated continuously, which reduces the treatment efficiency. Summary of the invention

[0003] The main purpose of the present invention is to provide a continuous treatment device for electrophoresis wastewater to solve the above problems.

[0004] To achieve the above-mentioned purpose, the present invention provides a continuous treatment device for electrophoresis wastewater, comprising a wastewater buffer tank, a regulating tank and a continuous sedimentation tank; a liquid inlet pipe is arranged on the top of the wastewater buffer tank, and the wastewater buffer tank and the regulating tank are connected by multiple siphons; a stirring mechanism and a dosing mechanism are arranged in the regulating tank; the regulating tank and the continuous sedimentation tank are connected by a delivery pipe; a delivery pump is arranged on the delivery pipe; the continuous sedimentation tank is divided into at least three chambers, and two adjacent chambers are separated by connected vertical baffles and inclined mesh plates, and the inclined mesh plates are located above the vertical baffles and inclined in the direction of liquid movement; the heights of the multiple vertical baffles decrease step by step along the direction of liquid movement, and a drainage pipe is arranged at the bottom of the last chamber.

[0005] Furthermore, both ends of the siphon tube are arranged downwards, one end of the siphon tube is located in the wastewater buffer tank, and the other end of the siphon tube is located in the regulating tank.

[0006] Furthermore, the stirring mechanism includes a motor, a stirring shaft and stirring blades, the motor is located at the top of the regulating tank, the motor is dynamically connected to the stirring shaft, and the stirring blades are installed on the stirring shaft; the dosing mechanism includes a coagulant dosing tube.

[0007] Furthermore, the dosing mechanism also includes an acid dosing pipe and an alkali dosing pipe, and a pH meter is arranged on the inner wall of the regulating tank.

[0008] Furthermore, the bottom of the regulating tank is inclined.

[0009] Furthermore, one end of the delivery pipe is connected to the bottom of the regulating tank, and the other end of the delivery pipe is connected to the top of the continuous sedimentation tank and is close to a side of the continuous sedimentation tank away from the discharge pipe.

[0010] Furthermore, a water wheel and a cleaning mechanism are rotatably arranged in a chamber connected to the conveying pipe, a part of the water wheel is located below the water outlet of the conveying pipe, the cleaning mechanism includes a first wheel, a second wheel and a belt sleeved on the first wheel and the second wheel, a plurality of scrapers are evenly arranged on the outside of the belt, a center line connecting the first wheel and the second wheel is parallel to the inclined mesh plate of the chamber, the scraper on the side of the belt close to the inclined mesh plate abuts against the inclined mesh plate, and the scraper on the side of the belt away from the inclined mesh plate can engage with the blades of the water wheel.

[0011] Furthermore, the bottom of the chamber is conical, and except for the chamber adjacent to the liquid discharge pipe, the bottoms of the remaining chambers are all provided with sewage discharge pipes.

[0012] The present invention has the following beneficial effects: The present invention temporarily stores electrophoresis wastewater in a wastewater buffer tank, extracts the electrophoresis wastewater in the wastewater buffer tank in stages through a regulating tank for regulating treatment, and implements a step-by-step sedimentation process through a continuous sedimentation tank to achieve continuous treatment of the electrophoresis wastewater, thereby improving treatment efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is an overall schematic diagram of a continuous treatment device for electrophoresis wastewater according to the present invention; Figure 2 For the present invention Figure 1 A magnified image of point A; Among them, 1-liquid inlet pipe; 2-wastewater buffer tank; 3-siphon; 4-regulating tank; 5-stirring blade; 6-coagulant dosing pipe; 7-stirring shaft; 8-motor; 9-acid dosing pipe; 10-alkali dosing pipe; 11-pH meter; 12-delivery pump; 13-delivery pipe; 14-continuous sedimentation tank; 15-cleaning mechanism; 16-water wheel; 17-drainage pipe; 18-drainage pipe; 19-chamber; 20-vertical baffle; 21-inclined mesh plate; 22-first wheel; 23-belt; 24-scraper; 25-second wheel. DETAILED DESCRIPTION

[0014] In order to achieve the above-mentioned purpose and effect, the technical means and structures adopted by the present invention are described in detail with reference to the accompanying drawings for the features and functions of the preferred embodiments of the present invention.

[0015] like Figure 1-Figure 2As shown, the present invention provides a continuous treatment device for electrophoresis wastewater, comprising a wastewater buffer tank 2, a regulating tank 4 and a continuous sedimentation tank 14; a liquid inlet pipe 1 is arranged on the top of the wastewater buffer tank 2, and the wastewater buffer tank 2 and the regulating tank 4 are connected through a plurality of siphon tubes 3; both ends of the siphon tube 3 are arranged downward, one end of the siphon tube 3 is located in the wastewater buffer tank 2, and the other end of the siphon tube 3 is located in the regulating tank 4; a stirring mechanism and a dosing mechanism are arranged in the regulating tank 4; the regulating tank 4 is connected with the continuous sedimentation tank 14 through a delivery pipe 13; a delivery pump 12 is arranged on the delivery pipe 13; the continuous sedimentation tank 14 is divided into at least three chambers 19, and two adjacent chambers 19 are separated by a connected vertical baffle 20 and an inclined mesh plate 21, and the inclined mesh plate 21 is located above the vertical baffle 20 and inclined in the direction of liquid movement; the heights of the plurality of vertical baffles 20 decrease step by step along the direction of liquid movement, and a drain pipe 17 is arranged at the bottom of the last chamber 19.

[0016] The electrophoresis wastewater is continuously injected into the wastewater buffer tank 2 from the liquid inlet pipe 1. When the liquid level in the wastewater buffer tank 2 is higher than the siphon tube 3, the siphon tube 3 automatically draws the electrophoresis wastewater from the wastewater buffer tank 2 to the regulating tank 4. After the siphoning of the siphon tube 3 is completed, the dosing mechanism adds the drug to the regulating tank 4, and the stirring mechanism stirs it evenly. After stirring for a certain period of time, the delivery pump 12 is turned on to pump the electrophoresis wastewater in the regulating tank 4 into the continuous sedimentation tank 14, and the regulating tank 4 waits for the next siphoning; the electrophoresis wastewater in the delivery pipe 13 enters the first chamber 19 first, and as the liquid level rises, after exceeding the height of the vertical baffle 20, it is filtered by the inclined mesh plate 21, and flows into the next chamber 19 along the inclined mesh plate 21 and the vertical baffle 20. After filtering and sedimentation in multiple chambers 19, the liquid is finally discharged from the discharge pipe 17 to realize the continuous treatment process.

[0017] In another embodiment, the stirring mechanism includes a motor 8, a stirring shaft 7 and a stirring blade 5, wherein the motor 8 is located at the top of the regulating tank 4, the motor 8 is dynamically connected to the stirring shaft 7, and the stirring blade 5 is installed on the stirring shaft 7; the motor 8 drives the stirring shaft 7 and the stirring blade 5 to rotate synchronously for stirring; the dosing mechanism includes a coagulant dosing pipe 6, an acid dosing pipe 9 and an alkali dosing pipe 10, and a pH meter 11 is provided on the inner wall of the regulating tank 4. The pH value of the wastewater in the regulating tank 4 is detected by the pH meter 11 to control the dosing amount of the acid dosing pipe 9 or the alkali dosing pipe 10 to adjust the pH; after the stirring and adjustment is completed, the coagulant is added through the coagulant dosing pipe 6 to stir and mix evenly.

[0018] In another embodiment, the bottom of the regulating pool 4 is inclined to facilitate drainage. One end of the delivery pipe 13 is connected to the bottom of the regulating pool 4, and the other end of the delivery pipe 13 is connected to the top of the continuous sedimentation tank 14 and close to the side of the continuous sedimentation tank 14 away from the discharge pipe 17. A water wheel 16 and a cleaning mechanism 15 are rotatably arranged in the chamber 19 connected to the delivery pipe 13, a part of the water wheel 16 is located below the water outlet of the delivery pipe 13, and the cleaning mechanism 15 includes a first wheel 22, a second wheel 25 and a belt 23 sleeved on the first wheel 22 and the second wheel 25, and a plurality of scrapers 24 are evenly arranged on the outside of the belt 23, the center line of the first wheel 22 and the second wheel 25 is parallel to the inclined mesh plate 21 of the chamber 19, the scraper 24 on the side of the belt 23 close to the inclined mesh plate 21 abuts against the inclined mesh plate 21, and the scraper 24 on the side of the belt 23 away from the inclined mesh plate 21 can mesh with the blades of the water wheel 16. The wastewater falling from the conveying pipe 13 falls onto the water wheel 16. On the one hand, the falling speed of the wastewater is reduced, so that it flows along the inner wall of the continuous sedimentation tank 14, reducing the impact and vibration of the sludge at the bottom of the chamber 19. On the other hand, the wastewater drives the water wheel 16 to rotate, so that the blades of the water wheel 16 continuously move the scraper 24 on the belt 23. The passively moved scraper 24 drives the belt 23 to rotate, so that the scraper 24 on the lower side of the belt 23 continuously scrapes and washes the inclined mesh plate 21 to prevent the inclined mesh plate 21 from being blocked and affecting the filtering effect. After being filtered by the first chamber 19, most of the sediment stays in the first chamber 19, and the sedimentation amount in other chambers 19 is small, so there is no need to set a cleaning mechanism 15 for other chambers 19.

[0019] In another embodiment, the bottom of the chamber 19 is conical to facilitate the accumulation of sludge. Except for the chamber 19 adjacent to the liquid discharge pipe 17, the bottoms of the other chambers are all provided with sewage discharge pipes 18 to facilitate sewage discharge.

[0020] The above descriptions are only preferred embodiments of the present invention, not all embodiments. Anyone should be aware that any structural changes made under the inspiration of the present invention, and any technical solutions that are the same or similar to the present invention, belong to the protection scope of the present invention.

Claims

1. A continuous treatment device for electrophoresis wastewater, characterized in that: It includes a wastewater buffer tank, a regulating tank and a continuous sedimentation tank; a liquid inlet pipe is arranged on the top of the wastewater buffer tank, and the wastewater buffer tank and the regulating tank are connected by multiple siphons; a stirring mechanism and a dosing mechanism are arranged in the regulating tank; the regulating tank and the continuous sedimentation tank are connected by a delivery pipe; a delivery pump is arranged on the delivery pipe; the continuous sedimentation tank is divided into at least three chambers, and two adjacent chambers are separated by connected vertical baffles and inclined mesh plates, and the inclined mesh plates are located above the vertical baffles and inclined in the direction of liquid movement; the heights of the multiple vertical baffles decrease step by step along the direction of liquid movement, and a drainage pipe is arranged at the bottom of the last chamber.

2. The electrophoresis wastewater continuous treatment device according to claim 1, characterized in that: Both ends of the siphon tube are arranged downwards, one end of the siphon tube is located in the wastewater buffer tank, and the other end of the siphon tube is located in the regulating tank.

3. The electrophoresis wastewater continuous treatment device according to claim 1, characterized in that: The stirring mechanism comprises a motor, a stirring shaft and stirring blades, wherein the motor is located at the top of the regulating tank, the motor is connected to the stirring shaft in power, and the stirring blades are installed on the stirring shaft; the dosing mechanism comprises a coagulant dosing pipe.

4. The electrophoresis wastewater continuous treatment device according to claim 3, characterized in that: The dosing mechanism also includes an acid dosing pipe and an alkali dosing pipe, and a pH meter is arranged on the inner wall of the regulating tank.

5. The electrophoresis wastewater continuous treatment device according to claim 1, characterized in that: The bottom of the regulating tank is inclined.

6. A continuous electrophoresis wastewater treatment device according to any one of claims 1 to 5, characterized in that: One end of the delivery pipe is connected to the bottom of the regulating tank, and the other end of the delivery pipe is connected to the top of the continuous sedimentation tank and is close to a side of the continuous sedimentation tank away from the discharge pipe.

7. The electrophoresis wastewater continuous treatment device according to claim 6, characterized in that: A water wheel and a cleaning mechanism are rotatably arranged in a chamber connected to a conveying pipe, a part of the water wheel is located below a water outlet of the conveying pipe, the cleaning mechanism comprises a first wheel, a second wheel and a belt sleeved on the first wheel and the second wheel, a plurality of scrapers are evenly arranged on the outside of the belt, a center line connecting the first wheel and the second wheel is parallel to the inclined mesh plate of the chamber, the scraper on the side of the belt close to the inclined mesh plate abuts against the inclined mesh plate, and the scraper on the side of the belt away from the inclined mesh plate can engage with the blades of the water wheel.

8. The electrophoresis wastewater continuous treatment device according to claim 1, characterized in that: The bottom of the chamber is conical, and except for the chamber adjacent to the liquid discharge pipe, the bottoms of the other chambers are all provided with sewage discharge pipes.

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