CN210237369U

CN210237369U - Equipment for producing ammonium chloride from neutralized copper-containing etching solution

Info

Publication number: CN210237369U
Application number: CN201921006827.8U
Authority: CN
Inventors: Xinmou Huang; 黄信谋; Haibo Niu; 牛海波; Siqi Wang; 王思祺
Original assignee: Shaanxi Anxin Teletron Circular Processing Application Co ltd
Current assignee: Shaanxi Anxin Teletron Circular Processing Application Co ltd
Priority date: 2019-07-01
Filing date: 2019-07-01
Publication date: 2020-04-03
Anticipated expiration: 2029-07-01

Abstract

The utility model discloses an equipment of copper-containing etching liquid neutralization back liquid production ammonium chloride, including first reation kettle, second reation kettle and cooling crystallization cauldron, a serial communication port, one side interlude of first reation kettle bottom is connected with first conveyer pipe, the one end and the second reation kettle threaded connection of first conveyer pipe, first self priming pump is installed to the pipe wall department of first conveyer pipe, the bottom interlude of second reation kettle one side is connected with the second conveyer pipe, the one end of second conveyer pipe and the top threaded connection of cooling crystallization cauldron one side, the pipe wall department of second conveyer pipe installs the second self priming pump, the beneficial effects of the utility model are that realize completely containing the recovery of copper in the copper-containing etching liquid recovery copper back liquid ammonium chloride, low in production cost, economic benefits is high, and waste water realizes the zero release, and environmental benefits is high.

Description

Equipment for producing ammonium chloride from neutralized copper-containing etching solution

Technical Field

The utility model relates to a device, in particular to a device for producing ammonium chloride from copper-containing etching solution and back solution.

Background

With the recent external opening and economic development of China, the demand of electronic products is continuously increased, the rapid development of the production of printed circuit boards (PCB for short) in China is promoted, the local economic development is driven, and meanwhile, the environment is also greatly polluted.

Etching the wiring board produces a large amount of etching solution. The etching solution is divided into acid etching solution and alkaline etching solution. Generally, the acidic etchant contains 5-15% copper (mainly in the form of copper chloride). The alkaline etching solution contains 5-15% of copper and 5-15% of ammonia nitrogen (mainly existing in the form of ammonia water, ammonium chloride and copper ammonia complex).

The treatment method used at present mainly recovers the copper therein, the wastewater generated in the recovery process is not effectively utilized, in GB/T3152-2005 copper-containing etching waste liquid treatment and treatment technical specification, the process, equipment and indexes for producing basic copper chloride, copper oxide and high-purity copper sulfate are defined, and the ammonium chloride solution produced in the production process still contains heavy metals and other pollutants to be further treated, the utility model aims to provide the equipment for producing ammonium chloride from acid-base etching liquid and wastewater, which has low cost and is environment-friendly.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an equipment of copper-containing etching liquid neutralization back liquid production ammonium chloride to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the equipment for producing ammonium chloride from neutralized copper-containing etching liquid comprises a first reaction kettle, a second reaction kettle and a cooling crystallization kettle, and is characterized in that one side of the bottom end of the first reaction kettle is alternately connected with a first conveying pipe, one end of the first conveying pipe is in threaded connection with the second reaction kettle, a first self-sucking pump is installed at the pipe wall of the first conveying pipe, a second conveying pipe is alternately connected with the bottom of one side of the second reaction kettle, one end of the second conveying pipe is in threaded connection with the top of one side of the cooling crystallization kettle, a second self-sucking pump is installed at the pipe wall of the second conveying pipe, a top end of the first reaction kettle is provided with a self-sucking port, two symmetrical metal filter screen plates are installed inside the first reaction feeding kettle, a top end of the second reaction kettle is provided with an acid-alkali liquid adding port, and an acid-alkali liquid detector is installed at the front middle part of the second reaction kettle, the hinge of uncovered department on cooling crystallization kettle top has the apron, the middle part sliding connection of cooling crystallization kettle inner chamber has the diatomaceous earth filter, the fixed heating pipe that is equipped with two symmetries in bottom of cooling crystallization kettle inner chamber.

As the utility model discloses a preferred technical scheme, ejection of compact pipeline, three have all been seted up at the middle part of first reation kettle bottom, the middle part of second reation kettle bottom and the middle part of cooling crystallization cauldron bottom manual valve is all installed to the pipe wall department of ejection of compact pipeline.

As an optimized technical scheme of the utility model, visual window strips have all been seted up to positive one side of first reation kettle, the positive one side of second reation kettle and the positive one side of cooling crystallization cauldron.

As an optimized technical scheme of the utility model, be located inside first reation kettle the fixed filter screen that is equipped with in port department of first conveyer pipe.

As an optimized technical scheme of the utility model, be located inside the second reation kettle the mouth of pipe department parcel of second conveyer pipe has the gauze filter screen.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model relates to an equipment of copper-containing etching liquid neutralization back liquid production ammonium chloride through first reation kettle, second reation kettle and the cooling crystallization cauldron that is equipped with, carries out the multi-step multi-process to copper-containing etching liquid neutralization back liquid and handles for environmental pollution nature greatly reduced retrieves more thoroughly, through filter screen and the gauze filter screen that is equipped with, can play good filterability, avoids the flow of solid particle to lead to the conveyer pipe to block up, to sum up, the utility model discloses realize completely containing the recovery of ammonium chloride in the copper-containing etching liquid recovery back liquid in the copper, low in production cost, economic benefits is high, and waste water realizes the zero release, and environmental benefit is high.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is an enlarged schematic view of the structure at A of the present invention;

fig. 3 is an enlarged schematic view of the position B of the present invention.

In the figure: 1. a first reaction kettle; 2. a second reaction kettle; 3. cooling the crystallization kettle; 4. a discharge pipeline; 5. a feed inlet; 6. an acid and alkali liquor adding port; 7. a cover plate; 8. a metal filter screen plate; 9. a visible window bar; 10. a first delivery pipe; 11. a first self-priming pump; 12. an acid-base detector; 13. a second self-priming pump; 14. a second delivery pipe; 15. heating a tube; 16. a diatomite filter plate; 17. a filter screen; 18. a gauze filter screen.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the utility model provides an apparatus for producing ammonium chloride from neutralized copper-containing etching solution, comprising a first reaction vessel 1, a second reaction vessel 2 and a cooling crystallization vessel 3, which is characterized in that one side of the bottom end of the first reaction vessel 1 is inserted and connected with a first conveying pipe 10, one end of the first conveying pipe 10 is in threaded connection with the second reaction vessel 2, a first self-priming pump 11 is installed on the pipe wall of the first conveying pipe 10, a second conveying pipe 14 is inserted and connected with the bottom of one side of the second reaction vessel 2, one end of the second conveying pipe 14 is in threaded connection with the top of one side of the cooling crystallization vessel 3, a second self-priming pump 13 is installed on the pipe wall of the second conveying pipe 14, a feed inlet 5 is opened on the top end of the first reaction vessel 1, two symmetrical metal mesh plates 8 are installed inside the first reaction vessel 1, an acid-alkali solution adding port 6 is opened on the top end of the second reaction vessel 2, the acid-base detector 12 is installed at the positive middle part of second reation kettle 2, and the hinge of the uncovered department at cooling crystallization kettle 3 top has apron 7, and the middle part sliding connection of cooling crystallization kettle 3 inner chamber has diatomaceous earth filter 16, and the bottom of cooling crystallization kettle 3 inner chamber is fixed and is equipped with two symmetrical heating pipes 15.

Preferably, discharge pipelines 4 are respectively arranged at the middle part of the bottom end of the first reaction kettle 1, the middle part of the bottom end of the second reaction kettle 2 and the middle part of the bottom end of the cooling crystallization kettle 3, manual valves are respectively arranged at the pipe walls of the three discharge pipelines 4, discharging is convenient, and redundant filter residues discharged are recovered.

Preferably, visual window bars 9 have all been seted up to the positive one side of first reation kettle 1, the positive one side of second reation kettle 2 and the positive one side of cooling crystallization cauldron 3, are convenient for observe the inside liquid content of first reation kettle 1, second reation kettle 2 and cooling crystallization cauldron 3.

Preferably, a filter screen 17 is fixedly arranged at the port of the first conveying pipe 10 positioned in the first reaction kettle 1 to play a role in filtering, so that filter residues are prevented from flowing into the second reaction kettle 2,

preferably, the gauze filter screen 18 is wrapped at the pipe orifice of the second conveying pipe 14 inside the second reaction kettle 2, so that the filtering effect is achieved, and filter residues are prevented from flowing into the cooling crystallization kettle 3.

When in specific use, the utility model relates to a copper-containing etching liquid neutralization back liquid production ammonium chloride's equipment, add copper-containing etching liquid neutralization back liquid into the inside of first reation kettle 1 through charge door 5, because the inside of first reation kettle 1 is equipped with two symmetrical metal filter plate 8, play the filtering action and through filtering the replacement reaction after, open the switch of first self priming pump 11, and the manual valve on discharge pipeline 4, discharge pipeline 4 is convenient for discharge unnecessary filter residue and is retrieved, first self priming pump 11 inhales the inside filtrating of first reation kettle 1 to the inside of second reation kettle 2 through first conveyer pipe 10, because the other end of first conveyer pipe 10 is equipped with filter screen 17, play the filtering action, avoid the filter residue to flow into the inside of second reation kettle 2, add acid lye to the inside alkali lye of second reation kettle 2 through acid lye interpolation mouth 6, add double oxidation Fe2+ and PAM in proper order again, reduce pollutants such as COD and make impurity in the Fe3+ adsorption coprecipitation solution, open the switch of second self priming pump 13, and the manual valve on the second ejection of compact pipeline 4, it is convenient for discharge the inside unnecessary filter residue of second reation kettle 2 to go out second material pipeline 4, retrieve, second self priming pump 13 inhales the inside saturated liquid of second reation kettle 2 through second conveyer pipe 14 to cool off the inside of crystallizer 3, filtration edulcoration and adsorption through diatomaceous earth filter 16, enter into the concentrated district of heating of cooling crystallizer 3, start-up heating pipe 15's switch, heat the condensation to the filtrating, one end time later, open apron 7, cool off the crystallization, at last from third ejection of compact pipeline 4 discharge crystal, carry out drying process with the crystal of collecting, obtain ammonium chloride at last.

In the description of the present invention, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

In the present invention, unless otherwise explicitly specified or limited, for example, it may be fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The equipment for producing ammonium chloride from neutralized post liquid in copper-containing etching liquid comprises a first reaction kettle (1), a second reaction kettle (2) and a cooling crystallization kettle (3), and is characterized in that one side of the bottom end of the first reaction kettle (1) is alternately connected with a first conveying pipe (10), one end of the first conveying pipe (10) is in threaded connection with the second reaction kettle (2), a first self-sucking pump (11) is installed at the pipe wall of the first conveying pipe (10), a second conveying pipe (14) is alternately connected with the bottom of one side of the second reaction kettle (2), one end of the second conveying pipe (14) is in threaded connection with the top of one side of the cooling crystallization kettle (3), a second self-sucking pump (13) is installed at the pipe wall of the second conveying pipe (14), a feed inlet (5) is formed in the top end of the first reaction kettle (1), two symmetrical metal filter screen plates (8) are installed in the first reaction kettle (1), acid-base liquid interpolation mouth (6) have been seted up on the top of second reation kettle (2), the positive mid-mounting of second reation kettle (2) has acid-base detector (12), the uncovered department hinge on cooling crystallization cauldron (3) top has apron (7), the middle part sliding connection of cooling crystallization cauldron (3) inner chamber has diatomaceous earth filter (16), the fixed heating pipe (15) that are equipped with two symmetries in bottom of cooling crystallization cauldron (3) inner chamber.

2. The apparatus for producing ammonium chloride from neutralized copper-containing etching solution according to claim 1, wherein: discharge pipeline (4) have all been seted up to the middle part of first reation kettle (1) bottom, the middle part of second reation kettle (2) bottom and the middle part of cooling crystallization cauldron (3) bottom, and are three manual valve is all installed to the pipe wall department of discharge pipeline (4).

3. The apparatus for producing ammonium chloride from neutralized copper-containing etching solution according to claim 1, wherein: visual window bars (9) are arranged on the front side of the first reaction kettle (1), the front side of the second reaction kettle (2) and the front side of the cooling crystallization kettle (3).

4. The apparatus for producing ammonium chloride from neutralized copper-containing etching solution according to claim 1, wherein: a port of the first conveying pipe (10) positioned in the first reaction kettle (1) is fixedly provided with a filter screen (17).

5. The apparatus for producing ammonium chloride from neutralized copper-containing etching solution according to claim 1, wherein: and a gauze filter screen (18) is wrapped at the pipe orifice of the second conveying pipe (14) positioned in the second reaction kettle (2).