CN210340538U

CN210340538U - Two-stage air-floating type paint spraying wastewater treatment and recycling device

Info

Publication number: CN210340538U
Application number: CN201920792981.6U
Authority: CN
Inventors: 朱海涛; 李振飞
Original assignee: Taicang Canlin Industrial Equipment Co Ltd
Current assignee: Taicang Canlin Industrial Equipment Co Ltd
Priority date: 2019-05-29
Filing date: 2019-05-29
Publication date: 2020-04-17
Anticipated expiration: 2029-05-29

Abstract

The utility model provides a doublestage air supporting formula effluent treatment retrieval and utilization device that sprays paint, it includes the vertical air supporting device of first order, the vertical air supporting device of second level, intercommunication a plurality of first charge devices, the intercommunication of the vertical air supporting device of first order a plurality of second charge devices, sedimentation tank and pressure filter of the vertical air supporting device of second level, the vertical air supporting device of first order with the sedimentation tank passes through the pipeline intercommunication, the vertical air supporting device of first order with the vertical air supporting device of second level passes through the pipeline intercommunication, the vertical air supporting device of second level with the sedimentation tank passes through the pipeline intercommunication, the sedimentation tank with the pressure filter passes through the pipeline intercommunication, a pressure filter intercommunication clarification tank. The utility model relates to a doublestage air supporting formula effluent treatment retrieval and utilization device that sprays paint: the paint spraying wastewater is treated dually, so that the treatment capacity of the wastewater is improved, and the requirement of environmental protection is met.

Description

Two-stage air-floating type paint spraying wastewater treatment and recycling device

Technical Field

The utility model relates to a retrieval and utilization device technical field, in particular to doublestage air supporting formula effluent treatment retrieval and utilization device that sprays paint.

Background

At present, various articles used in life of people are mostly subjected to spraying treatment, and the components of the paint are reasonably changed, so that the articles can be beautified, and the effects of oxidation resistance, moisture resistance, corrosion resistance and the like can be achieved to a certain extent, and therefore, the paint spraying device is widely used in various factories. The paint spraying device can generate a certain amount of paint slag and other impurities to be discharged along with the circulating water in the spraying process, and if the impurities are not treated in time, the service life of the circulating water can be reduced, the frequency of replacing the circulating water is improved, and the use cost is increased. At present, most of paint slag in circulating water is treated directly in a main circulating water tank in a factory, and the method is not easy to discharge separated paint slag, so that circulating water needs to be discharged at regular time, and the paint slag in the main circulating water tank is treated, so that the workload is high, and a large amount of waste of water resources is caused.

The water paint is water-soluble paint, is non-toxic and environment-friendly, and does not contain benzene and other harmful solvents. Based on how to treat the sewage of different water-based paints and the selection of the paint mist coagulant, detailed experiments and field debugging are required to be carried out on a water-based paint manufacturer or a paint spraying manufacturer in the former period, and then the special paint mist coagulant product is used to have decisive advantage for the water-based paint spraying wastewater according to the relevant water-based paint sewage treatment research technology and field experience.

The paint mist coagulant is mainly used for treating sewage generated in water curtain coating and paint spraying, and is particularly widely applied to the sewage treatment of various automobiles, heavy-duty mechanical paint spraying, furniture paint spraying, hardware paint spraying, plastic paint spraying and handicraft paint spraying. However, a single paint mist coagulant is not a universal product, and can not solve the problem of treatment of all paint sewage in one model, the components, water quality and pH value of different types of paint sewage are different, and particularly, the water-based paint sewage is characterized by large change and different concentration, so that corresponding products with low cost and good effect are needed, and the problem of selecting the paint mist coagulant for the water-based paint waste water is solved.

The water paint spraying wastewater is high-pollution wastewater, and in order to reduce high treatment cost, a special paint mist coagulant is required to be added, wherein the paint mist coagulant is a water treatment agent synthesized by organic polymers, and the water paint mist coagulant can capture and grab the water paint in a paint spraying platform water tank, breaks charge balance to generate solid-liquid separation in water, then is suspended on the water surface, and can be continuously used without being discharged after simple fishing.

How to comprehensively treat the paint spraying wastewater is a problem which is urgently needed to be solved by the current factories so as to improve the treatment capacity of the wastewater.

In view of this, the utility model provides a doublestage air supporting formula waste water treatment retrieval and utilization device that sprays paint to overcome above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a doublestage air supporting formula effluent treatment retrieval and utilization device that sprays paint improves the throughput of waste water.

In order to achieve the above object, the utility model discloses a technical scheme be: the utility model provides a doublestage air supporting type waste water treatment retrieval and utilization device that sprays paint, its includes first order vertical air supporting device, second level vertical air supporting device, intercommunication a plurality of first charge devices of first order vertical air supporting device, intercommunication a plurality of second charge devices, sedimentation tank and the pressure filter of second level vertical air supporting device, first order vertical air supporting device with the sedimentation tank passes through the pipeline intercommunication, first order vertical air supporting device with second level vertical air supporting device passes through the pipeline intercommunication, second level vertical air supporting device with the sedimentation tank passes through the pipeline intercommunication, the sedimentation tank with the pressure filter passes through the pipeline intercommunication, the pressure filter communicates a clarification tank.

The first-stage vertical air flotation device is provided with a first reaction kettle and a first mixing area fixed on the upper edge of the first reaction kettle, a first-stage wastewater input pipeline extends upwards to be communicated with the first mixing area, a second channel is arranged to be communicated with the first mixing area and the first reaction kettle, and an outlet of the first mixing area extends downwards to be communicated with an inlet at the lowest end of the first reaction kettle.

First reation kettle has the first chamber of acceping and certainly first siphunculus that acceping the chamber bottom upwards extends, first siphunculus certainly first bottom of acceping the chamber upwards extends and forms, first siphunculus intercommunication second passageway.

First siphunculus the top is upwards open-ended loudspeaker form, and waste water process first siphunculus upwards overflows from loudspeaker form opening, and falls into first reation kettle first accept the intracavity.

The device comprises a first reaction kettle, a second reaction kettle and a third reaction kettle, wherein a slag scraping device and a first overflow cavity are arranged above the first reaction kettle, the slag scraping device scrapes bubbles floating on the water surface and a small amount of wastewater into the first overflow cavity through reciprocating motion, and the wastewater flows into a sedimentation tank from the first overflow cavity through a fourth channel. And a fifth channel is led out from the first accommodating cavity to the second-stage vertical air floatation device.

The two-stage air-floating paint spraying wastewater treatment and recycling device further comprises air dissolving devices, each air dissolving device comprises an air dissolving pump, two ends of each air dissolving pump are communicated with the first accommodating cavity through third passages respectively, the third passages are divided into two groups, one group of the third passages is communicated with the upper end of the first accommodating cavity, and the other group of the third passages is communicated with the lower end of the first accommodating cavity.

The second-stage vertical air flotation device is provided with a second reaction kettle and a second mixing area fixed on the upper edge of the second reaction kettle, the fifth channel extends upwards to be communicated with the second mixing area, a seventh channel is arranged to be communicated with the second mixing area and the second reaction kettle, and the seventh channel extends downwards from an outlet of the second mixing area to be communicated with an inlet at the lowest end of the second reaction kettle.

The second reaction kettle is provided with a second containing cavity and a second through pipe extending upwards from the lowest end of the containing cavity.

The second siphunculus is the loudspeaker form of upwards opening the top, and waste water process the second siphunculus upwards overflows from loudspeaker form opening, and falls into the intracavity is acceptd to the second.

A slag scraping device and a second overflow cavity are arranged above the second reaction kettle, and the second overflow cavity is communicated into the sedimentation tank through a ninth channel; the two-stage air-floating paint spraying wastewater treatment and recycling device is also provided with a filter press, and the filter press is communicated with the settling tank to the clarification tank.

Compared with the prior art, the utility model relates to a doublestage air supporting formula effluent treatment retrieval and utilization device that sprays paint's beneficial effect: the paint spraying wastewater is treated dually, so that the treatment capacity of the wastewater is improved, and the requirement of environmental protection is met. Aiming at a paint spraying factory with large capacity, the paint spraying wastewater generated by the paint spraying factory is more, and when the first-stage vertical air floatation device cannot be completely treated, the paint spraying factory can be treated by the second-stage vertical air floatation device, so that the treatment capacity of a large amount of wastewater is met.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work, wherein:

FIG. 1 is a perspective view of the two-stage air-floating paint spraying wastewater treatment and recycling device of the present invention.

Fig. 2 is another perspective view of the two-stage air-floating paint spraying wastewater treatment and recycling device in fig. 1.

FIG. 3 is a further perspective view of the apparatus for treating and recycling paint spraying waste water of the two-stage air-floating type in FIG. 1.

FIG. 4 is a sectional view of the first stage vertical air flotation device of the two-stage air flotation type paint spraying wastewater treatment and recycling device in FIG. 1.

FIG. 5 is a sectional view of the first stage vertical air flotation device of the two-stage air flotation type paint spraying wastewater treatment and recycling device in FIG. 1.

Detailed Description

The present invention will be described in detail below with reference to the drawings, but it should be emphasized that the following embodiments are merely illustrative and are not intended to limit the scope and application of the present invention.

Referring to fig. 1 to 5, the utility model relates to a doublestage air supporting formula effluent treatment retrieval and utilization device that sprays paint, it includes the vertical air supporting device of first order 1, the vertical air supporting device of second level 2, communicates the vertical air supporting device of first order 1 and the vertical air supporting device of second level 2 a plurality of first charge device 3 and a plurality of second charge device 4 and pipeline 6 respectively.

The pipeline 6 comprises a primary wastewater input pipeline 60, a first dosing device 3 communicated with the primary wastewater input pipeline, and a first channel 61 of the first-stage vertical air flotation device 1. The waste water from the factory painting flows in through the primary waste water input pipe 60.

The utility model discloses a first charge device 3 is three medicine bucket 31, installs in the medicine pump 32 that adds of first passageway 61, adds in the medicine bucket 31 respectively and adds coating cloud coagulant, NaOH, Zn2+ hydroxide. The dosing pump 32 is communicated with the first dosing device 3 and the first channel 61, and can pump the compound in the dosing barrel 31 into the primary wastewater input pipeline 60 to be mixed with wastewater. The medicine adding barrel 31 is further provided with a stirring motor (not indicated), and the compound in the medicine adding barrel 31 is fully stirred by driving a stirrer through the stirring motor.

As shown in fig. 4, the first-stage vertical air flotation device 1 is provided with a first reaction vessel 11 and a first mixing area 12 fixed on the upper edge of the first reaction vessel 11, a first-stage wastewater input pipeline 60 extends upwards to communicate with the first mixing area 12, the first mixing area 12 is provided with a stirring mechanism, the stirring mechanism fully stirs wastewater and compounds, a second channel 62 is arranged after the mixture is stirred to communicate the first mixing area 12 with the first reaction vessel 11, and the second channel 62 extends downwards from the outlet of the first mixing area 12 to communicate with the inlet at the lowest end of the first reaction vessel 11.

The first reaction vessel 11 has a first through pipe 112 extending upward from the inlet at the lowermost end thereof, the uppermost end of the first through pipe 112 is in the shape of a horn with an upward opening, wastewater flows through the first through pipe 112 and overflows from the horn-shaped opening and falls into the first accommodating cavity 113 of the first reaction vessel 11, and the first through pipe 112 extends upward from the bottom of the first accommodating cavity 113.

The two-stage air-floating paint spraying wastewater treatment and recycling device further comprises an air dissolving device, the air dissolving device comprises an air dissolving pump 7, two ends of the air dissolving pump 7 are respectively communicated with the first accommodating cavity 113 through a third channel 63, the third channels 63 are divided into two groups, one group is communicated with the upper end of the first accommodating cavity 113, the other group is communicated with the lower end of the first accommodating cavity 113, the air dissolving pump 7 extracts wastewater from the upper end of the first accommodating cavity 113, and the wastewater enters the first accommodating cavity 113 through the third channel 63 at the lower end after air is injected through the air dissolving pump 7, so that the wastewater is dissolved with air.

Since a flocculant is added to the wastewater and air is injected into the wastewater, cotton flocs are formed in the water, which can adsorb various ions and various suspended substances dissolved in the water. The flocs are also mutually attracted to form large flocs, and the flocs and bubbles released by the gas-dissolved water act together to float on the water surface.

A slag scraping device 117 and a first overflow cavity 116 are arranged above the first reaction kettle 11, the slag scraping device 117 can scrape bubbles floating on the water surface and a small amount of wastewater into the first overflow cavity 116 through reciprocating motion, and the wastewater flows into the sedimentation tank 5 from the first overflow cavity 116 through the fourth channel 64. A fifth channel 65 is led out from the first accommodating cavity 113 to the secondary vertical air flotation device 2, the fifth channel 65 is approximately equal to the inlet of the first overflow cavity 116, that is, a part of bubbles and a small amount of wastewater enter the sedimentation tank 5 through the slag scraping device 117 and the fourth channel 64, and a part of wastewater is led into the secondary vertical air flotation device 2 through the fifth channel 65.

The second drug dosing devices 4 are connected to the fifth channels 65 through sixth channels 66, respectively. The second chemical adding device 4 has the same structure as the first chemical adding device 3, the added chemicals are approximately the same, and the treated wastewater is pumped to the second-stage vertical air flotation device 2 for secondary treatment.

Referring to fig. 5, the second-stage vertical air flotation device 2 includes a second reaction vessel 21, a second mixing region 22 fixed to an upper edge of the second reaction vessel 21, a fifth channel 65 extending upward to communicate with the second mixing region 22, a stirring mechanism provided on the second mixing region 22 for fully stirring the wastewater and the compound, a seventh channel 67 provided behind the stirred mixture for communicating the second mixing region 22 with the second reaction vessel 21, the seventh channel 67 extending downward from an outlet of the second mixing region 22 to communicate with an inlet at a lowermost end of the second reaction vessel 21. The mixture enters the second reaction vessel 21.

The second reaction vessel 21 has a second through pipe 212 extending upward from the inlet at the lowermost end thereof, the uppermost end of the second through pipe 212 is in the shape of a trumpet with an upward opening, the wastewater passes through the second through pipe 212 and overflows from the trumpet-shaped opening and falls into the second accommodating cavity 213 of the second reaction vessel 21, and the second through pipe 212 extends upward from the bottom of the second accommodating cavity 213.

And providing a dissolved air pump 7, wherein two ends of the dissolved air pump 7 are respectively communicated with the second accommodating cavity 213 through eighth passages 68, the eighth passages 68 are divided into two groups, one group is communicated with the upper end of the second accommodating cavity 213, and the other group is communicated with the lower end of the second accommodating cavity 213, the dissolved air pump 7 pumps the wastewater from the upper end of the second accommodating cavity 213, and the wastewater enters the second accommodating cavity 213 through the eighth passage 68 at the lower end after the air is injected through the dissolved air pump 7, so that the wastewater is subjected to air dissolution.

Therefore, the flocculating constituent and the bubbles released by the dissolved gas water are arranged above the second reaction kettle 21 of the two-stage vertical air floating device 2, and the flocculating constituent and the bubbles float on the water surface together under the combined action.

The slag scraping device 117 and the second overflow cavity 216 are arranged above the second reaction kettle 21, the slag scraping device 117 can scrape bubbles floating on the water surface and a small amount of wastewater into the second overflow cavity 216 through reciprocating motion, and the wastewater flows into the sedimentation tank 5 from the second overflow cavity 216 through the ninth channel 69. A tenth channel 610 is led out from the second accommodating cavity 213 to the biochemical pool, the tenth channel 610 is approximately equal to the inlet of the second overflow cavity 216, that is, a part of bubbles and a small amount of wastewater enter the sedimentation tank 5 through the slag scraping device 117 and the tenth channel 610, and a part of wastewater is input to the biochemical pool 9 through the tenth channel 610.

The two-stage air-floating paint spraying wastewater treatment and recycling device also comprises a filter press 8, wherein the filter press 8 is communicated with the sedimentation tank 5, and the filter is a product in the prior art and can be directly purchased according to requirements. The filter press applies a certain pressure to the wastewater by using hydraulic pressure, so that clear water is dialyzed.

The filter press 8 separates paint slag from water by squeezing the filter cloth, and the paint slag is changed into mud cake and left in the filter cloth and is cleaned regularly. Clean water seeps through the pores of the filter cloth and overflows to a clarifier (not shown) after collection. The clarifying tank makes the clear water after filter pressing stay and precipitate, and makes the tiny suspended particles fully separated from the clear water; the settled water overflows through the partition to a clean water tank (not indicated).

The utility model discloses a doublestage air supporting formula waste water treatment retrieval and utilization device that sprays paint, it is dual to handle the waste water that sprays paint to improve the throughput of waste water, thereby satisfy the demand of environmental protection.

For a paint spraying factory with large capacity, the paint spraying wastewater generated by the paint spraying factory is more, and when the first-stage vertical air flotation device 1 cannot be completely treated, the paint spraying factory can be treated by the second-stage vertical air flotation device 2, so that the treatment capacity of a large amount of wastewater is met.

Of course, those skilled in the art should realize that the above-mentioned embodiments are only used for illustrating the present invention, and not for limiting the present invention, and that the changes and modifications to the above-mentioned embodiments are all within the scope of the appended claims as long as they are within the true spirit of the present invention.

Claims

1. The utility model provides a doublestage air supporting formula waste water treatment retrieval and utilization device that sprays paint which characterized in that: the device comprises a first-stage vertical air flotation device, a second-stage vertical air flotation device, a plurality of first dosing devices communicated with the first-stage vertical air flotation device, a plurality of second dosing devices communicated with the second-stage vertical air flotation device, a sedimentation tank and a filter press, wherein the first-stage vertical air flotation device is communicated with the sedimentation tank through a pipeline, the first-stage vertical air flotation device is communicated with the second-stage vertical air flotation device through a pipeline, the second-stage vertical air flotation device is communicated with the sedimentation tank through a pipeline, the sedimentation tank is communicated with the filter press through a pipeline, and the filter press is communicated with a clarification tank.

2. The two-stage air-floating paint spraying wastewater treatment and recycling device of claim 1, which is characterized in that: the first-stage vertical air flotation device is provided with a first reaction kettle and a first mixing area fixed on the upper edge of the first reaction kettle, a first-stage wastewater input pipeline extends upwards to be communicated with the first mixing area, a second channel is communicated with the first mixing area and the first reaction kettle, and an outlet of the first mixing area extends downwards to be communicated with an inlet at the lowest end of the first reaction kettle.

3. The two-stage air-floating paint spraying wastewater treatment and recycling device of claim 2, which is characterized in that: first reation kettle has the first chamber of acceping and certainly first siphunculus that acceping the chamber bottom upwards extends, first siphunculus certainly first bottom of acceping the chamber upwards extends and forms, first siphunculus intercommunication second passageway.

4. The two-stage air-floating paint spraying wastewater treatment and recycling device of claim 3, which is characterized in that: first siphunculus the top is upwards open-ended loudspeaker form, and waste water process first siphunculus upwards overflows from loudspeaker form opening, and falls into first reation kettle first accept the intracavity.

5. The two-stage air-floating paint spraying wastewater treatment and recycling device of claim 3, which is characterized in that: the device comprises a first reaction kettle, a second reaction kettle and a third reaction kettle, wherein a slag scraping device and a first overflow cavity are arranged above the first reaction kettle, the slag scraping device scrapes bubbles floating on the water surface and a small amount of wastewater into the first overflow cavity through reciprocating motion, the wastewater flows into a sedimentation tank from the first overflow cavity through a fourth channel, and a fifth channel is further led out from the first accommodating cavity to the second-stage vertical air floatation device.

6. The two-stage air-floating paint spraying wastewater treatment and recycling device of claim 5, which is characterized in that: the two-stage air-floating paint spraying wastewater treatment and recycling device further comprises air dissolving devices, each air dissolving device comprises an air dissolving pump, two ends of each air dissolving pump are communicated with the first accommodating cavity through third passages respectively, the third passages are divided into two groups, one group of the third passages is communicated with the upper end of the first accommodating cavity, and the other group of the third passages is communicated with the lower end of the first accommodating cavity.

7. The two-stage air-floating paint spraying wastewater treatment and recycling device of claim 6, which is characterized in that: the second-stage vertical air flotation device is provided with a second reaction kettle and a second mixing area fixed on the upper edge of the second reaction kettle, the fifth channel extends upwards to be communicated with the second mixing area, a seventh channel is arranged to be communicated with the second mixing area and the second reaction kettle, and the seventh channel extends downwards from an outlet of the second mixing area to be communicated with an inlet at the lowest end of the second reaction kettle.

8. The two-stage air-floating paint spraying wastewater treatment and recycling device of claim 7, which is characterized in that: the second reaction kettle is provided with a second containing cavity and a second through pipe extending upwards from the lowest end of the containing cavity.

9. The two-stage air-floating paint spraying wastewater treatment and recycling device of claim 8, which is characterized in that: the second siphunculus is the loudspeaker form of upwards opening the top, and waste water process the second siphunculus upwards overflows from loudspeaker form opening, and falls into the intracavity is acceptd to the second.

10. The two-stage air-floating paint spraying wastewater treatment and recycling device of claim 9, which is characterized in that: and a slag scraping device and a second overflow cavity are arranged above the second reaction kettle, the second overflow cavity is communicated to the sedimentation tank through a ninth channel, and the filter press is communicated with the sedimentation tank to a clarification tank.