Paint-water separator for spraying wastewater treatment system

Abstract

The utility model discloses a paint-water separator for a spraying wastewater treatment system, which relates to the technical field of spraying wastewater treatment and is characterized in that a low-position stirring area and a high-position stirring area are formed in a chemical reaction tank; the stirring mechanism is provided with a first stirring paddle located in the low-position stirring area and a second stirring paddle located in the high-position stirring area, and the first stirring paddle upwards drives wastewater in the low-position stirring area to the high-position stirring area while stirring; the agent reaction tank is provided with an agent injection port, a low-position wastewater guide-in port and a high-position water outlet, through the stirring mechanism, spraying wastewater entering the agent reaction tank from the low-position stirring area can quickly reach the high-position stirring area above under the action of the first stirring paddle to be subjected to first-stage stirring, and the spraying wastewater entering the high-position stirring area is subjected to second-stage stirring; under the action of a second stirring paddle, second-stage stirring can be continuously carried out, so that the spraying wastewater can be uniformly stirred with an agent added and injected into the agent reaction tank more quickly, and the acceleration of the reaction process is more facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of spraying wastewater treatment, in particular to a paint-water separator used in a spraying wastewater treatment system. Background Art

[0002] During the spraying operation of the coating production line, a lot of wastewater containing paint will be generated. The wastewater containing paint may be generated when the Venturi water tank is used to filter the spraying waste gas through a water curtain. In order to treat the wastewater containing paint to meet the discharge requirements or meet the needs of reuse, industry personnel have innovated a lot of spraying wastewater treatment systems, among which the paint-water separator is the most commonly used device in the spraying wastewater treatment system.

[0003] The structure of the paint water separator is similar to the device used in the Chinese invention "A method for removing paint from spray circulating water" with announcement number CN103910410B. The first reaction tank, the second reaction tank, and the sedimentation tank are arranged in the same cavity shell in sequence. Add a detackifier, a pH adjuster, and a water clarifier to the first reaction tank, and stir quickly for 5 hours with a paddle stirrer, then stir slowly for 0.4 hours, so that the paint breaks the viscosity and forms paint residue; the paint residue enters the second reaction tank through the channel between the first reaction tank and the second reaction tank with the wastewater, and add a special gelling agent whose main component is alginate to the second reaction tank, and stir slowly for 2 hours to make the paint residue aggregate into large particles of gel feathers. 4) Large particles of rubber feathers enter the sedimentation tank with inclined plates along with the paint water through the channel, hit the inclined plates in the sedimentation tank, and automatically settle to the paint residue chamber at the bottom. The outlet of the paint residue chamber is connected to a sludge pump, and the other end of the sludge pump is connected to a dewatering machine of an external treatment device to dehydrate the paint residue into a paint residue cake; an organic oxidant is added to the upper clarified wastewater to remove the organic solvent in the wastewater, and then the wastewater is returned to the spraying circulating water tank for reuse.

[0004] However, the paddle stirrer used in the first reaction tank has a flow-guiding stirring method in which a motor drives a paddle for stirring, and has a relatively simple structure, which is not conducive to rapid and uniform stirring. Utility Model Content

[0005] The utility model aims to overcome the above-mentioned shortcomings and provide a technical solution that can solve the above-mentioned problems.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a paint-water separator for a spraying wastewater treatment system, comprising a reagent reaction tank and a stirring mechanism, wherein a low-level stirring zone and a high-level stirring zone located above the low-level stirring zone and forming a continuous area with the low-level stirring zone are formed in the reagent reaction tank; the stirring mechanism comprises a first stirring paddle located in the low-level stirring zone for stirring, and a second stirring paddle located in the high-level stirring zone for stirring, wherein the first stirring paddle is configured to drive the wastewater in the low-level stirring zone upward to the high-level stirring zone while stirring; the reagent reaction tank is provided with a reagent injection port, a low-level wastewater inlet port and a high-level drainage port, and the low-level wastewater inlet port is used to divert the wastewater discharged into the reagent reaction tank to the low-level stirring zone for release.

[0007] As a further solution of the utility model: the low-position wastewater inlet is lower than the first stirring paddle.

[0008] As a further solution of the utility model: the high-position drain outlet is higher than the second stirring paddle.

[0009] As a further solution of the utility model: the stirring mechanism includes a stirring motor installed above the pharmaceutical reaction tank, the output shaft of the stirring motor is connected to a stirring shaft, the stirring shaft extends from top to bottom into the pharmaceutical reaction tank, and the shaft section of the stirring shaft located in the low-position stirring zone is connected to the first stirring paddle, and the shaft section of the stirring shaft located in the high-position stirring zone is connected to the second stirring paddle.

[0010] As a further solution of the utility model: it also includes a paint residue collection chamber communicated with the high-level drain outlet.

[0011] As a further solution of the utility model: an inclined tube filler and a drain outlet higher than the inclined tube filler are arranged on the upper part of the paint residue collection chamber.

[0012] Compared with the prior art, the beneficial effects of the technical solution are as follows: through the stirring mechanism, the spray wastewater entering the reagent reaction tank from the low-level stirring zone of the reagent reaction tank can, under the action of the first stirring paddle, quickly reach the high-level stirring zone above to perform the first-level stirring, and the spray wastewater entering the high-level stirring zone can continue to perform the second-level stirring under the action of the second stirring paddle, so that the spray wastewater can be more quickly mixed with the reagent injected into the reagent reaction tank, which is more conducive to speeding up the reaction process; and the high and low position settings of the low-level wastewater inlet and the high-level drain outlet, when the water body is discharged through the high-level drain outlet, the water is discharged in the reverse direction, so that it is not easy to discharge the wastewater with a large amount of paint residue at the bottom of the reagent reaction tank.

[0013] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0015] Figure 1 It is a structural stereogram of the utility model;

[0016] Figure 2 It is a structural sectional view of the utility model;

[0017] Figure 3 It is a structural stereogram of the simple mechanism in the utility model.

[0018] The corresponding reference numerals in the accompanying drawings are described as follows:

[0019] Reagent reaction pool-1,

[0020] The first reagent reaction pool-1a, the second reagent reaction pool-1b,

[0021] Low-level stirring area-101, high-level stirring area-102, reagent injection port-103, low-level wastewater inlet-104, high-level drainage port-105,

[0022] Stirring mechanism-2,

[0023] first stirring paddle-201, second stirring paddle-202, stirring motor-203, stirring shaft-204,

[0024] Paint residue collection room-3,

[0025] Inclined tube filler-301, drain outlet-302, collection outlet-303. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-3 The paint water separator for the spraying wastewater treatment system comprises a reagent reaction pool 1 and a stirring mechanism 2. The stirring mechanism 2 is used to stir the spraying wastewater in the reagent reaction pool 1.

[0028] The reagent reaction pool 1 includes a low-position stirring zone 101 and a high-position stirring zone 102 located above the low-position stirring zone 101 and forming a continuous area with the low-position stirring zone 101. Figure 2 As shown, the low-position stirring zone 101 and the high-position stirring zone 102 are connected, and the spraying wastewater in the reagent reaction tank 1 can freely enter and exit the low-position stirring zone 101 and the high-position stirring zone 102.

[0029] The reagent reaction pool 1 is provided with a reagent injection port 103, a low-level wastewater inlet 104 and a high-level drainage port 105. The low-level wastewater inlet 104 is used to introduce the spray wastewater in the previous sequence into the reagent reaction pool 1. The reagent injection port 103 is used to inject the reaction reagent into the reagent reaction pool 1 so that the spray wastewater in the reagent reaction pool 1 can react with the reagent, such as breaking paint, breaking viscosity, and precipitation. The high-level drainage port 105 is used to discharge the spray wastewater after reacting with the reagent to the subsequent sequence.

[0030] like Figure 2 As shown, the low-level wastewater inlet 104 is used to guide the wastewater discharged into the reagent reaction tank 1 to the low-level stirring area 101 for release. The high-low position setting of the low-level wastewater inlet 104 and the high-level drainage port 105, when the water body is discharged through the high-level drainage port 105, it is difficult to discharge the wastewater with a large amount of paint residue on the bottom of the reagent reaction tank 1 by draining in the reverse direction.

[0031] The stirring mechanism 2 has a first stirring paddle 201 located in the low-position stirring zone 101 for stirring, and a second stirring paddle 202 located in the high-position stirring zone 102 for stirring. The first stirring paddle 201 and the second stirring paddle 202 are driven by corresponding power components to stir the spraying wastewater in the low-position stirring zone 101 and the high-position stirring zone 102, respectively.

[0032] The first stirring paddle 201 is configured to drive the spray wastewater in the low-level stirring zone 101 upward to the high-level stirring zone 102 while stirring; the spray wastewater entering the reagent reaction tank from the low-level stirring zone 101 of the reagent reaction tank, under the action of the first stirring paddle 201, quickly reaches the upper high-level stirring zone 102 for first-level stirring; the spray wastewater entering the high-level stirring zone 102 can continue to be stirred at the second level under the action of the second stirring paddle 202, so that the spray wastewater can be more quickly and evenly stirred with the reagent injected into the reagent reaction tank, which is more conducive to speeding up the reaction process.

[0033] like Figure 3 As shown, the blades of the first stirring paddle 201 are tilted so that the first stirring paddle 201 can drive the spraying wastewater in the low-position stirring zone 101 upward to the high-position stirring zone 102 when rotating.

[0034] The number of reagent reaction pools 1 can be set to different values ​​according to different usage requirements. Figure 2 As shown, for example, two reagent reaction pools 1a and 1b are set according to different reaction processes, and different reagents are added to different reagent reaction pools. For example, a pH adjuster, a water clarifier, a paint breaking agent, and a viscosity breaking agent are added to the first reagent reaction pool 1a, and a precipitant and an oxidant are added to the second reagent reaction pool 1b.

[0035] When it can be used to add a pH adjuster, a corresponding pH value detection instrument (not shown) can also be configured for the reagent reaction pool.

[0036] Preferably, the low-level wastewater inlet 104 is lower than the first stirring paddle 201. The high-level drainage port 105 is higher than the second stirring paddle 202. When stirring is performed, the low-level wastewater inlet 104 and the high-level drainage port 105 are prevented from affecting the stirring process.

[0037] The paint water separator also includes a paint residue collection chamber 3 connected to the high-level drain port 105. The upper part of the paint residue collection chamber 3 is provided with an inclined tube filler 301 and a drain port 302 higher than the inclined tube filler. The reagent reaction tank 1 discharges the spray wastewater after the reaction into the paint residue collection chamber 3 through the high-level drain port 105. The inclined tube filler 301 allows the paint residue to settle without being disturbed by turbulence, which is more conducive to the precipitation of the paint residue.

[0038] Combination Figure 1 , 2 As shown, the bottom of the paint residue collecting chamber 3 is also provided with a collecting port 303 to collect the paint residue deposited at the bottom of the paint residue collecting chamber 3 .

[0039] Therefore, relative to the second chemical reaction pool 1b, its preceding spray wastewater is the spray wastewater in the first chemical reaction pool 1a, and its succeeding is the paint residue collection chamber 3; relative to the first chemical reaction pool 1a, its preceding spray wastewater may be the spray wastewater discharged from the spray production line, and its succeeding is the second chemical reaction pool 1b.

[0040] In the embodiment of the utility model, the stirring mechanism 2 includes a stirring motor 203 installed above the pharmaceutical reaction pool 1, and the upper shaft of the output shaft of the stirring motor 203 is connected to the stirring shaft 204, and the stirring shaft 204 extends from top to bottom into the pharmaceutical reaction pool 1, and the shaft section of the stirring shaft 204 located in the low-position stirring zone is connected to the first stirring paddle 201, and the shaft section of the stirring shaft 204 located in the high-position stirring zone is connected to the second stirring paddle 202, that is, the power components of the first stirring paddle 201 and the second stirring paddle 202 are both the stirring motor 203, and the first stirring paddle 201 and the second stirring paddle 202 are driven at the same time by the stirring motor 203, which is more conducive to reducing the overall cost.

[0041] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A paint water separator for a spraying wastewater treatment system, characterized in that: It comprises a reagent reaction pool and a stirring mechanism, wherein a low-position stirring zone and a high-position stirring zone located above the low-position stirring zone and forming a continuous area with the low-position stirring zone are formed in the reagent reaction pool; The stirring mechanism comprises a first stirring paddle for stirring in the low stirring zone and a second stirring paddle for stirring in the high stirring zone, wherein the first stirring paddle is configured to drive the wastewater in the low stirring zone upward to the high stirring zone while stirring; The reagent reaction pool is provided with a reagent injection port, a low-level wastewater inlet and a high-level drainage port. The low-level wastewater inlet is used to guide the wastewater discharged into the reagent reaction pool to the low-level stirring area for release.

2. The paint-water separator according to claim 1, characterized in that: The low-level wastewater inlet is lower than the first stirring paddle.

3. The paint-water separator according to claim 2, characterized in that: The high-level drain outlet is higher than the second stirring paddle.

4. The paint-water separator according to any one of claims 1 to 3, characterized in that: The stirring mechanism includes a stirring motor installed above the pharmaceutical reaction tank, the output shaft of the stirring motor is connected to a stirring shaft, the stirring shaft extends from top to bottom into the pharmaceutical reaction tank, and the shaft section of the stirring shaft located in the low-position stirring zone is connected to the first stirring paddle, and the shaft section of the stirring shaft located in the high-position stirring zone is connected to the second stirring paddle.

5. The paint-water separator according to claim 1, characterized in that: It also includes a paint residue collection chamber which is communicated with the high-level drain outlet.

6. The paint-water separator according to claim 5, characterized in that: The upper part of the paint residue collecting chamber is provided with an inclined tube filler and a drainage port higher than the inclined tube filler.

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