Pretreatment equipment for mixed acidic and alkaline copper-containing waste etching liquid

Abstract

The utility model relates to pretreatment equipment for mixing acidic and alkaline copper-containing waste etching liquid, which comprises a neutralizing tank, an acidic part confluence tank for confluence of acidic copper-containing waste etching liquid is arranged on one side of the neutralizing tank, and an alkaline part confluence tank for confluence of alkaline copper-containing waste etching liquid is arranged on the other side of the neutralizing tank; the tail parts of the acidic part confluence tank and the alkaline part confluence tank are correspondingly communicated with a confluence neutralizing tank, and the confluence neutralizing tank is used as a compatible neutralizing area for acidic copper-containing waste etching liquid and alkaline copper-containing waste etching liquid to form a pretreatment structure for quickly mixing the acidic copper-containing waste etching liquid and the alkaline copper-containing waste etching liquid; the bottoms of the acidic part confluence tank and the alkaline part confluence tank are inclined, and the lowest points are positioned corresponding to the through confluence neutralizing tank.

Description

TECHNICAL FIELD

[0001] The utility model relates to solid waste recovery technology and recovery equipment, specifically, it is a kind of for mixed acid and alkaline copper-containing waste etching liquid pretreatment equipment. BACKGROUND

[0002] The treatment of copper-containing etching waste liquid has been a big problem faced by printed circuit board enterprises, and the use of printing process determines the copper-containing etching waste liquid, including acid copper-containing waste etching liquid after acid etching, alkaline copper-containing waste etching liquid after alkaline etching. At present, acid copper-containing waste etching liquid after acid etching and alkaline copper-containing waste etching liquid after alkaline etching are generally treated separately, but acid copper-containing waste etching liquid and alkaline copper-containing waste etching liquid are respectively acid waste liquid without copper and alkaline waste liquid containing copper, and contain the same metal elements that need to be removed. Direct neutralization of acid copper-containing waste etching liquid and alkaline copper-containing waste etching liquid can greatly reduce the treatment cost.

[0003] Therefore, it is necessary to provide a mixed acid and alkaline copper-containing waste etching liquid pretreatment equipment to achieve the above purpose. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of for mixed acid and alkaline copper-containing waste etching liquid pretreatment equipment.

[0005] The utility model realizes the above-mentioned purpose by the following technical scheme:

[0006] A kind of for mixed acid and alkaline copper-containing waste etching liquid pretreatment equipment, including neutralization pool, the one side of neutralization pool is provided with the acid department of the current for the current of acid copper-containing waste etching liquid, the other side is provided with the alkaline department of the current for the current of alkaline copper-containing waste etching liquid;The tail of acid department of the current, the tail of alkaline department of the current is connected with the current of neutralization pool, and the current of neutralization pool is used as the compatible neutralization area of acid copper-containing waste etching liquid and alkaline copper-containing waste etching liquid, to form the pretreatment structure of fast mixed acid and alkaline copper-containing waste etching liquid.

[0007] Further, acid department of the current, alkaline department of the current are respectively arranged in the two sides of isolation platform, and the current of neutralization pool is located in the tail of isolation platform.

[0008] Further, the bottom of acid department of the current, alkaline department of the current is all inclinedly arranged, and the lowest point is located and the current of neutralization pool corresponds.

[0009] Further, the current of neutralization pool is inclined slope tank body.

[0010] Further, the tail of neutralization pool is further provided with the collection box of neutralization waste liquid after pretreatment.

[0011] Furthermore, the post-pretreatment neutralization waste liquid collection box is provided with a neutralization liquid flow inlet corresponding to the confluence neutralization tank.

[0012] Furthermore, the bottom height of the neutralization liquid inlet is 10-15 mm lower than the isolation platform.

[0013] Furthermore, the acidic part confluence trough and the alkaline part confluence trough respectively introduce the acidic copper-containing waste etching liquid and the alkaline copper-containing waste etching liquid through the waste liquid introduction pipe.

[0014] Furthermore, the waste liquid inlet pipe is connected to the waste liquid driving pump and is correspondingly provided with a pH value detector.

[0015] Compared with the prior art, the utility model greatly reduces the processing cost by quickly mixing the acidic and alkaline copper-containing waste etching liquid pretreatment structures and directly neutralizing the acidic copper-containing waste etching liquid and the alkaline copper-containing waste etching liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is one of the structural diagrams of the present utility model.

[0017] Figure 2 This is the second structural diagram of the present utility model. DETAILED DESCRIPTION

[0018] Example:

[0019] See Figure 1-2 This embodiment is a pretreatment device for mixing acidic and alkaline copper-containing waste etching liquid, including a neutralization tank 1. One side of the neutralization tank 1 is provided with an acidic confluence trough 2 for confluence of acidic copper-containing waste etching liquid, and the other side is provided with an alkaline confluence trough 3 for confluence of alkaline copper-containing waste etching liquid; the tail ends of the acidic confluence trough 2 and the alkaline confluence trough 3 are connected to a confluence neutralization tank 4, which serves as a compatible neutralization area for the acidic copper-containing waste etching liquid and the alkaline copper-containing waste etching liquid, forming a pretreatment structure for rapidly mixing acidic and alkaline copper-containing waste etching liquid.

[0020] The acidic part confluence trough 2 and the alkaline part confluence trough 3 are respectively arranged on both sides of the isolation platform 5 , and the confluence neutralization trough 5 is located at the tail end of the isolation platform 5 .

[0021] The bottoms of the acidic part confluence trough 2 and the alkaline part confluence trough 3 are both arranged in an inclined shape, with the lowest point located corresponding to the confluence neutralization trough 4 .

[0022] The confluence and neutralization trough 4 is a sloped trough body.

[0023] The tail portion 1 of the neutralization tank is also provided with a collection box 6 for the neutralization waste liquid after pretreatment.

[0024] The neutralization waste liquid collection box 6 after pretreatment is provided with a neutralization liquid inlet 7 corresponding to the neutralization tank 4 .

[0025] The bottom height of the neutralization liquid inlet 7 is 10-15 mm lower than the isolation platform.

[0026] The acidic part confluence tank 2 and the alkaline part confluence tank 3 respectively introduce the acidic copper-containing waste etching liquid and the alkaline copper-containing waste etching liquid through the waste liquid introduction pipe 8.

[0027] The waste liquid inlet pipe 8 is connected to the waste liquid driving pump 9 and is correspondingly provided with a pH value detector.

[0028] Compared with the prior art, the utility model greatly reduces the processing cost by quickly mixing the acidic and alkaline copper-containing waste etching liquid pretreatment structures and directly neutralizing the acidic copper-containing waste etching liquid and the alkaline copper-containing waste etching liquid.

[0029] The above descriptions are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, and these all fall within the scope of protection of the present invention.

Claims

1. A pretreatment device for mixed acidic and alkaline copper-containing waste etching solution, characterized in that: The invention comprises a neutralization tank, wherein an acidic confluence trough for confluence of acidic copper-containing waste etching liquid is provided on one side of the neutralization tank, and an alkaline confluence trough for confluence of alkaline copper-containing waste etching liquid is provided on the other side; the tails of the acidic confluence trough and the alkaline confluence trough are connected to a confluence neutralization tank, and the confluence neutralization tank is used as a compatible neutralization area for the acidic copper-containing waste etching liquid and the alkaline copper-containing waste etching liquid, thereby forming a pretreatment structure for rapidly mixing the acidic and alkaline copper-containing waste etching liquids; The bottoms of the acidic confluence trough and the alkaline confluence trough are both inclined, with the lowest point corresponding to the Hetong confluence neutralization trough.

2. The pretreatment equipment for mixed acidic and alkaline copper-containing waste etching solution according to claim 1, characterized in that: The acidic part confluence trough and the alkaline part confluence trough are respectively arranged on both sides of the isolation platform, and the confluence neutralization trough is located at the tail of the isolation platform.

3. The pretreatment equipment for mixed acidic and alkaline copper-containing waste etching solution according to claim 1 or 2, characterized in that: The confluence and neutralization trough is a sloped trough.

4. The pretreatment equipment for mixed acidic and alkaline copper-containing waste etching solution according to claim 3, characterized in that: A collection box for pre-treated neutralization waste liquid is also provided at the tail end of the neutralization tank.

5. The pretreatment equipment for mixed acidic and alkaline copper-containing waste etching solution according to claim 4, characterized in that: The neutralization waste liquid collection box after pretreatment is provided with a neutralization liquid flow inlet corresponding to the confluence neutralization tank.

6. The pretreatment equipment for mixed acidic and alkaline copper-containing waste etching solution according to claim 5, characterized in that: The bottom height of the neutralization liquid inlet is 10-15 mm lower than the isolation platform.

7. The pretreatment equipment for mixed acidic and alkaline copper-containing waste etching solution according to claim 6, characterized in that: The acidic part confluence trough and the alkaline part confluence trough respectively introduce the acidic copper-containing waste etching liquid and the alkaline copper-containing waste etching liquid through the waste liquid introduction pipe.

8. The pretreatment equipment for mixed acidic and alkaline copper-containing waste etching solution according to claim 7, characterized in that: The waste liquid inlet pipe is connected to the waste liquid driving pump and is correspondingly provided with a pH value detector.

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