CN210030136U

CN210030136U - Paint spraying wastewater treatment device

Info

Publication number: CN210030136U
Application number: CN201920484164.4U
Authority: CN
Inventors: 邓向群
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-04-10
Filing date: 2019-04-10
Publication date: 2020-02-07
Anticipated expiration: 2029-04-10

Abstract

The utility model discloses a effluent treatment plant sprays paint for the waste water treatment field, including reaction tube, air supporting pipeline and separator box, be equipped with first pipeline mixer and second pipeline mixer along the rivers direction on the reaction tube, be in along the rivers direction on the reaction tube the front side of first pipeline mixer is equipped with first medicine mouth that adds the front side of second pipeline mixer is equipped with the second and adds the medicine mouth, the inside passageway that can guide the bubble come-up that forms of air supporting pipeline, the top of air supporting pipeline with the separator box is connected, the pipe diameter of air supporting pipeline is greater than the pipe diameter of reaction tube, the bottom of air supporting pipeline through the reducing joint with the reaction tube connects, still including the bubble generating device that can input the bubble in to the air supporting pipeline. The technical scheme adopts the air flotation principle to realize the separation of paint residues in the wastewater, thereby purifying the water body, having simple structure and saving energy consumption.

Description

Paint spraying wastewater treatment device

Technical Field

The utility model is used for the waste water treatment field especially relates to a waste water treatment device sprays paint.

Background

At present, in the paint spraying process of the production process of the industries such as automobiles, furniture, packaging and the like, the spray water curtain cabinet for spraying paint and the spray tower for pretreating the paint spraying waste gas absorb the paint spraying mist by utilizing the water mist, the surplus paint splashes to the air to form the paint mist, the water curtain and the spray tower circulating water system are adopted to catch the paint spraying mist, and the paint mist falls into the water, so that the following problems are easily caused: the method comprises the following steps of circulating water turbidity, water quality odor, paint slag precipitation, equipment blockage, absorption effect reduction, hardened spray tower filling, air pipe section reduction by adhesion on an air pipe and the like. The paint spraying wastewater is toxic and difficult to degrade due to high pollution value, and cannot be directly discharged, otherwise, serious water pollution can be caused, the surrounding water body environment is influenced, and the purification treatment and recycling of the paint spraying wastewater accord with the trend of environmental protection.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve one of the technical problem that exists among the prior art at least, provide a effluent treatment plant sprays paint, it can be with the separation of the lacquer sediment in the waste water to purify the water.

The utility model provides a technical scheme that its technical problem adopted is: paint spraying wastewater treatment device, including reaction tube, air supporting pipeline and separator box, be equipped with first pipeline mixer and second pipeline mixer along the rivers direction on the reaction tube, be in along the rivers direction on the reaction tube the front side of first pipeline mixer is equipped with first medicine mouth that adds the front side of second pipeline mixer is equipped with the second and adds the medicine mouth, the inside passageway that can guide the bubble come-up that forms of air supporting pipeline, the top of air supporting pipeline with the separator box is connected, the pipe diameter of air supporting pipeline is greater than the pipe diameter of reaction tube, the bottom of air supporting pipeline pass through the reducing joint with reaction tube connects, still includes the bubble generating device that can input the bubble in to the air supporting pipeline.

Preferably, the reaction tube is formed with a plurality of bends.

Preferably, the inlet of reaction tube is equipped with the flowmeter, first dosing mouth is connected first measurement dosing pump, the second dosing mouth is connected the second measurement dosing pump.

Preferably, be in along rivers direction on the reaction tube the rear side of second pipeline mixer is equipped with dissolves the gas water interface, still includes the clear water case, the clear water case through dissolve the gas pipeline with dissolve gas water interface connection, bubble generating device is including establishing dissolve the gas pump on the gas pipeline.

Preferably, still including establishing the lacquer sediment collection device outside the separator box, the top of separator box is equipped with can scrape the lacquer sediment to the scraper blade of lacquer sediment collection device.

Preferably, still include scraper blade actuating mechanism, scraper blade actuating mechanism includes first sprocket, second sprocket, chain and driving motor, first sprocket and second sprocket pass through chain drive, driving motor with first sprocket or second sprocket transmission are connected, the scraper blade with the chain is connected.

Preferably, a slag trap is arranged between the separation box and the paint slag collecting device, and the slag trap is provided with an arc surface matched with the scraper.

Preferably, the paint slag collecting device comprises a slag hopper, and the slag hopper is connected with a slag bag or a slag groove.

Preferably, the separation box is provided with a drain port and a clean water outlet, the separation box is provided with a perforated pipe at the inner side of the clean water outlet, and the perforated pipe is higher than the box bottom of the separation box.

Preferably, the separation box is provided with an inclined water baffle for guiding water flow entering the air floatation pipeline to avoid the perforated pipe.

One of the above technical solutions has at least one of the following advantages or beneficial effects: when paint spraying wastewater is treated, the wastewater flows into a reaction pipeline, and is fully mixed with a first medicament under the action of flow distribution, mixing and reverse rotational flow generated in a first pipeline mixer when flowing through a first medicament adding port, so that the viscosity of paint falling in water is removed; then when flowing through the second dosing port, the mixed paint is fully mixed with a second medicament under the action of shunting, mixing and reverse rotational flow generated in a second pipeline mixer, so that debonding paint slag forms flocs, the pipe diameter is enlarged through a reducing joint to ensure the completeness of the flocs of the paint slag, and bubbles generated by a bubble generating device accelerate the flocs to the surface of a separation box, so that the separation of the paint slag in the wastewater is realized, and the water body is purified.

Drawings

The present invention will be further explained with reference to the accompanying drawings:

fig. 1 is a schematic view of the internal structure of an embodiment of the present invention;

FIG. 2 is a cross-sectional view taken at A-A in FIG. 1;

fig. 3 is a schematic diagram of the internal structure of an embodiment of the present invention.

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the present invention, if there is a description of directions (up, down, left, right, front and back), it is only for convenience of description of the technical solution of the present invention, and it is not intended to indicate or imply that the technical features indicated must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

In the present invention, "a plurality" means one or more, "a plurality" means two or more, "more than", "less than", "more than", and the like, which means that the number is not included; the terms "above", "below", "within" and the like are to be understood as including the number. In the description of the present invention, if there is any description of "first" and "second" only for the purpose of distinguishing technical features, it is not to be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the precedence of the indicated technical features.

In the present invention, unless otherwise explicitly defined, the terms "set," "mounted," "connected," and the like are to be understood in a broad sense, and may be directly connected or indirectly connected through an intermediate medium, for example; can be fixedly connected, can also be detachably connected and can also be integrally formed; may be mechanically coupled, may be electrically coupled or may be capable of communicating with each other; either as communication within the two elements or as an interactive relationship of the two elements. The technical skill in the art can reasonably determine the specific meaning of the above words in the present invention by combining the specific contents of the technical solution.

Referring to fig. 1, an embodiment of the present invention provides a paint spraying wastewater treatment apparatus, including a reaction pipeline 1, an air flotation pipeline 2 and a separation box 3, wherein a first pipeline mixer 4 and a second pipeline mixer 5 are arranged on the reaction pipeline 1 along a water flow direction, a first chemical adding port 6 is arranged on the reaction pipeline 1 along the water flow direction at the front side of the first pipeline mixer 4 for adding a first chemical into wastewater, a second chemical adding port 7 is arranged on the reaction pipeline 1 along the water flow direction at the front side of the second pipeline mixer 5 for adding a second chemical into wastewater, a channel capable of guiding bubbles to float upwards is formed inside the air flotation pipeline 2, the air flotation pipeline 2 is vertically or obliquely arranged, the top end of the air flotation pipeline 2 is connected with the separation box 3, the pipe diameter of the air flotation pipeline 2 is greater than the pipe diameter of the reaction pipeline 1, the bottom of the air floatation pipeline 2 is connected with the reaction pipeline 1 through a reducing joint 8, and the air floatation pipeline further comprises an air bubble generating device which can input air bubbles into the air floatation pipeline 2. When paint spraying wastewater is treated, the wastewater flows into the reaction pipeline 1, and is fully mixed with a first medicament under the action of flow distribution, mixing and reverse rotational flow generated in the first pipeline mixer 4 when flowing through the first medicament adding port 6, so that the viscosity of paint falling in water is removed; then when flowing through the second chemical feeding port 7, the second chemical feeding port and a second chemical are fully mixed under the action of shunting, mixing and reverse rotational flow in the second pipeline mixer 5, so that the debonding paint slag forms flocs, the pipe diameter is enlarged through the reducing joint to ensure the completeness of the flocs of the paint slag, and bubbles generated by the bubble generating device accelerate the flocs to the surface of the separation box 3, so that the separation of the paint slag in the wastewater is realized, and the water body is purified. The air floatation principle is adopted in the embodiment, the structure is simple, and energy consumption is saved.

The first agent can be paint mist coagulant A, the second agent can be paint mist coagulant B, the paint mist has certain electronegativity in circulating water, after contacting with the agent A, the charge is transferred and loses viscosity to form unstable fine particles, after adding the agent B, the agent B is strongly adsorbed by the agent A, and the agent B is in a long-chain net-shaped high molecular structure, forms larger particles to present a floating state and is separated from water, so that the water quality is purified. The first line mixer 4 and the second line mixer 5 allow the added chemicals to be rapidly and uniformly dispersed throughout the water body.

In some embodiments, referring to fig. 2, the reaction pipe 1 is formed with a plurality of bends, so that the flow rate of the incoming water is combined with a plurality of bends to accelerate the mixing reaction of the liquid medicine, wherein the bends can be formed by bending the reaction pipe 1 itself or by bending the reaction pipe.

In some embodiments, referring to fig. 2, the inlet of the reaction pipeline 1 is provided with a flow meter 9, the first dosing port 6 is connected with a first dosing pump 10, and the second dosing port 7 is connected with a second dosing pump 11. The flowmeter 9, the first metering dosing pump 10 and the second metering dosing pump 11 are matched with each other to accurately dose and meter, so that the medicaments are effectively mixed before being delivered to the reactor, and the medicament quantity is saved.

The bubble generating device is used for inputting bubbles into the air flotation pipeline 2, and in some embodiments, the bubble generating device may adopt a microporous diffusion plate or a diffusion tube arranged at the bottom of the air flotation pipeline 2, and fine bubbles after gas-liquid atomization escape from the plate surface or the tube surface in the form of fine bubbles in water. Preferably, referring to fig. 1 and 2, the reaction pipeline 1 is provided with a dissolved gas water interface 12 at the rear side of the second pipeline mixer 5 along the water flow direction, and further comprises a clean water tank, the clean water tank is connected with the dissolved gas water interface 12 through a dissolved gas pipeline 13, and the bubble generating device comprises a dissolved gas pump 14 arranged on the dissolved gas pipeline 13. The dissolved air pump 14 can perform gas-liquid suction, mixing, dissolution and accelerated circulation reaction, promote the separation effect and increase the floating rate of paint mist.

In some embodiments, referring to fig. 1, the paint residue collection device is arranged outside the separation box 3, a scraper 15 capable of scraping paint residues to the paint residue collection device is arranged at the top of the separation box 3, the dissolved air bubbles accelerate and push flocs to the surface of the separation box 3, and further the flocs are scraped to the paint residue collection device through the scraper 15, so that complete scum removal is realized. The scraper 15 can be driven by a manual or air cylinder, preferably, the scraper driving device further comprises a scraper driving mechanism, the scraper driving mechanism comprises a first chain wheel 16, a second chain wheel 17, a chain 18 and a driving motor 19, the first chain wheel 16 and the second chain wheel 17 are driven by the chain 18, the driving motor 19 is in transmission connection with the first chain wheel 16 or the second chain wheel 17, and the scraper 15 is connected with the chain 18. The driving motor 19 drives the first chain wheel 16, the second chain wheel 17 and the chain 18 to reciprocate, so that the paint residues are continuously scraped to the paint residue collecting device.

In some embodiments, referring to fig. 1, a slag trap 20 is provided between the separation box 3 and the paint slag collecting device, and the slag trap 20 has a curved surface cooperating with the scraper 15. The arc of the slag trap 20 is consistent with the running radius of the scraper 15, so that the slag can be scraped thoroughly.

Referring to fig. 1, the paint slag collecting device comprises a slag hopper 21, the slag hopper is connected with a slag bag or a slag groove, and the slag bag 22 and the slag groove are connected at the lower end of the slag hopper 21 so as to collect paint slag.

In some embodiments, referring to fig. 1, the separation tank 3 is provided with a drain 23 and a clean water outlet, the separation tank 3 is provided with a perforated pipe 24 inside the clean water outlet, and the perforated pipe 24 is higher than the tank bottom of the separation tank 3, so as to prevent the sediment from mixing into the effluent, and the effluent is clear. The water at the clear water outlet can flow back to the water tank for reuse, so that the circulating water of the paint spray booth or the spray tower can realize uninterrupted operation without changing water and discharging outwards.

In some embodiments, referring to fig. 1, the separation box 3 is provided with a sloped water baffle 25 for guiding the water flow entering the air flotation duct 2 to avoid the perforated pipe 24. The waste water mixed with paint slag is prevented from being directly discharged through the perforated pipe 24.

Referring to fig. 1 and 3, the chemical feeder also comprises a frame 26, the clean water tank and the separation tank 3 are both arranged on the frame 26, in addition, a chemical feeding pump driving motor chamber 27, a reaction pipeline installation area 28, a dissolved air pump installation chamber 29 and the like are arranged on the frame 26, the first metering chemical feeding pump 10, the second metering chemical feeding pump 11 and the driving motor 19 are all arranged in the chemical feeding pump driving motor chamber 27, the reaction pipeline 1 is arranged in the reaction pipeline installation area 28, and the dissolved air pump 14 is arranged in the dissolved air pump installation chamber 29. The whole device forms a whole through the frame, has simple structure, saves energy consumption and medicament and has small volume.

The invention is not limited to the above embodiments, and those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the invention, and such equivalent modifications or substitutions are included in the scope defined by the claims of the present application.

Claims

1. Paint spraying wastewater treatment device, its characterized in that: including reaction tube, air supporting pipeline and separator box, be equipped with first pipeline mixer and second pipeline mixer along the rivers direction on the reaction tube, be in along the rivers direction on the reaction tube the front side of first pipeline mixer is equipped with first medicine mouth that adds the front side of second pipeline mixer is equipped with the second and adds the medicine mouth, the inside passageway that can guide the bubble come-up that forms of air supporting pipeline, the top of air supporting pipeline with the separator box is connected, the pipe diameter of air supporting pipeline is greater than the pipe diameter of reaction tube, the bottom of air supporting pipeline pass through reducer union with reaction tube connects, still includes the bubble generating device that can input the bubble in to the air supporting pipeline.

2. The painting wastewater treatment apparatus according to claim 1, characterized in that: the reaction pipeline is provided with a plurality of bends.

3. The painting wastewater treatment apparatus according to claim 1, characterized in that: the inlet of the reaction pipeline is provided with a flow meter, the first dosing port is connected with a first metering dosing pump, and the second dosing port is connected with a second metering dosing pump.

4. The painting wastewater treatment apparatus according to claim 1, characterized in that: the reaction pipeline is in along the rivers direction the rear side of second pipeline mixer is equipped with dissolves the gas water interface, still includes the clear water case, the clear water case through dissolve the gas pipeline with dissolve gas water interface connection, bubble generating device is including establishing dissolve the last dissolved air pump of gas pipeline.

5. The painting wastewater treatment apparatus according to claim 1, characterized in that: still including establishing the lacquer sediment collection device in the separator box outside, the top of separator box is equipped with can scrape the lacquer sediment extremely lacquer sediment collection device's scraper blade.

6. The painting wastewater treatment apparatus according to claim 5, characterized in that: still include scraper blade actuating mechanism, scraper blade actuating mechanism includes first sprocket, second sprocket, chain and driving motor, first sprocket and second sprocket pass through chain drive, driving motor with first sprocket or second sprocket transmission are connected, the scraper blade with the chain is connected.

7. The painting wastewater treatment apparatus according to claim 6, characterized in that: and a slag baffle is arranged between the separation box and the paint slag collecting device, and the slag baffle is provided with a cambered surface matched with the scraper.

8. The painting wastewater treatment apparatus according to claim 5, 6 or 7, characterized in that: the paint slag collecting device comprises a slag hopper, and the slag hopper is connected with a slag bag or a slag groove.

9. The painting wastewater treatment apparatus according to claim 1, characterized in that: the separating box is provided with a drain port and a clear water outlet, a perforated pipe is arranged on the inner side of the clear water outlet of the separating box, and the perforated pipe is higher than the box bottom of the separating box.

10. The painting wastewater treatment apparatus according to claim 9, characterized in that: and the separation box is provided with an inclined water baffle for guiding water flow entering the air floatation pipeline to avoid the perforated pipe.