A neutralization reactor for treating acidic etching waste liquid

Abstract

The utility model discloses a neutralization reactor for treating acidic etching waste liquid, comprising a reactor body, a sealed reactor cover installed on the upper end surface of the reactor body, an exhaust pipe, a feeding pipe, a detection machine tube and a liquid level monitoring tube respectively arranged on the upper end surface of the sealed reactor cover, an acid-base indicator installed inside the detection machine tube, a driving motor installed on the upper end surface of a supporting base, and an internal shell of the reactor body comprising a corrosion-resistant protective liner, a glass fiber heat-insulating interlayer and an outer protective sleeve. The utility model can effectively isolate the acidic substances from corroding and damaging the inner wall of the reactor body by performing corrosion-resistant design protection on the interior of the waste liquid reactor, and at the same time, a convenient stirring mechanism is provided to facilitate stirring of the acidic and alkaline substances, thereby accelerating the acid-base neutralization reaction, and a detection machine tube is provided to facilitate detection of the acid-base value inside the reactor body, and at the same time, the gas generated after the reaction can be discharged in time, achieving a good safety protection effect.

Description

Technical Field

[0001] The utility model relates to the technical field of waste liquid reactors, in particular to a neutralization reactor for treating acidic etching waste liquid. Background Art

[0002] Nowadays, with the rapid development of the electronics industry, the demand for etching liquid is increasing, and more and more etching liquid waste is also generated. After the etching process is completed, the etching liquid forms etching liquid waste, most of which is alkaline or acidic. When recycling, the etching liquid waste needs to be neutralized.

[0003] The Chinese authorized patent document with publication number CN213611307U discloses a neutralization reaction kettle for treating waste liquid containing copper etching liquid; it belongs to the technical field of neutralization reaction equipment; its technical key points include a kettle body and a kettle cover arranged on the top of the kettle body, the kettle cover is provided with a first feed pipe and a second feed pipe connected to the inside of the kettle body, and a hedging pipe which is respectively connected to the first feed pipe and the second feed pipe and the outlet ends are arranged oppositely inside the kettle body, and a hedging nozzle is arranged at the outlet end of each hedging pipe; the kettle body is provided with a reversing mechanism on the outside of the hedging nozzle; the kettle body is provided with a mixing mechanism for neutralization reaction at the bottom of the reversing mechanism; the utility model aims to provide a neutralization reaction kettle for treating waste liquid containing copper etching liquid with low energy consumption, good mixing effect and high reaction rate.

[0004] In the above-mentioned prior art, when treating the acidic etching waste liquid, it is easy to cause corrosion damage to the inner wall of the kettle body, and no convenient exhaust and pH value detection mechanism is set. Therefore, it is necessary to develop a new neutralization reactor for treating acidic etching waste liquid. Utility Model Content

[0005] The purpose of the utility model is to provide a neutralization reactor for treating acidic etching waste liquid, so as to solve the problem that in the prior art proposed in the above background technology, when treating the acidic etching waste liquid, the inner wall of the reactor body is easily corroded and damaged, and no convenient exhaust and pH value detection mechanism is set.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a neutralization reactor for treating acidic etching waste liquid, comprising a reactor body, a sealed reactor cover is installed on the upper end surface of the reactor body, an exhaust pipe, a feeding pipe, a detection machine pipe and a liquid level monitoring pipe are respectively arranged on the upper end surface of the sealed reactor cover, an acid-base indicator is installed inside the detection machine pipe, a bearing base is welded and fixed on the upper end surface of the reactor body, a driving motor is installed on the upper end surface of the bearing base, the output end of the driving motor is connected to a stirring rod arranged inside the reactor body through a rotating shaft, and the internal shell of the reactor body comprises a corrosion-resistant protective liner, a glass fiber thermal insulation interlayer and an outer protective cover.

[0007] Based on the above, a cover plate assembly is provided on the upper end surface of the feeding pipe, and the cover plate assembly is fixedly connected to the feeding pipe through a hinge mechanism.

[0008] Based on the above, a drain pipe is installed at the bottom end of the reactor body.

[0009] Based on the above, a discharge control switch valve is installed on the discharge pipe.

[0010] Based on the above, the outer protective sleeve is wrapped around the outer surface of the glass fiber thermal insulation interlayer.

[0011] Based on the above, the corrosion-resistant protective liner is arranged on the inner surface of the glass fiber insulation interlayer.

[0012] Based on the above, a liquid level meter is arranged inside the liquid level monitoring tube.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model can effectively isolate the acidic substances from corroding and damaging the inner wall of the reactor body by providing corrosion-resistant design protection for the interior of the waste liquid reactor body. At the same time, a convenient stirring mechanism is provided to facilitate stirring of acidic and alkaline substances, thereby accelerating the acid-base neutralization reaction. A detection machine tube is provided to facilitate detection of the pH value inside the reactor body. At the same time, the gas generated after the reaction can be discharged in time, thereby achieving a good safety protection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is the front view of the utility model;

[0017] Figure 3 This is a schematic diagram of the internal installation structure of the utility model;

[0018] Figure 4 It is a schematic diagram of the internal shell structure of the reactor body of the utility model.

[0019] In the figure: 1. driving motor; 2. supporting base; 3. liquid level monitoring tube; 4. exhaust pipe; 5. cover assembly; 6. hinge mechanism; 7. feeding tube; 8. reactor body; 9. acid-base indicator; 10. detection machine tube; 11. sealing reactor cover; 12. rotating shaft; 13. stirring rod; 14. drain control switch valve; 15. drain pipe; 16. outer protective cover; 17. glass fiber thermal insulation interlayer; 18. corrosion-resistant protective liner. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] See also Figure 1-4 The utility model provides an embodiment: a neutralization reactor for treating acidic etching waste liquid, comprising a reactor body 8, a sealed reactor cover 11 is installed on the upper end surface of the reactor body 8, an exhaust pipe 4, a feeding pipe 7, a detection machine tube 10 and a liquid level monitoring tube 3 are respectively arranged on the upper end surface of the sealed reactor cover 11, an acid-base indicator 9 is installed inside the detection machine tube 10, a bearing base 2 is welded and fixed on the upper end surface of the reactor body 8, a driving motor 1 is installed on the upper end surface of the bearing base 2, and the output end of the driving motor 1 is connected to a stirring rod 13 arranged inside the reactor body 8 through a rotating shaft 12, and the internal shell of the reactor body 8 includes a corrosion-resistant protective liner 18, a glass fiber heat insulation interlayer 17 and an outer protective sleeve 16.

[0022] Furthermore, a cover assembly 5 is provided on the upper end surface of the feeding pipe 7, and the cover assembly 5 is fixedly connected to the feeding pipe 7 by a hinge mechanism 6, which is convenient for opening the cover assembly 5 and feeding the alkaline material to be neutralized from the feeding pipe 7 into the reactor body 8.

[0023] Furthermore, a drain pipe 15 is installed at the bottom end of the reactor body 8 to facilitate the discharge control of the waste liquid after the neutralization reaction.

[0024] Furthermore, a discharge control switch valve 14 is installed on the discharge pipe 15 to control the flow of liquid inside the discharge pipe 15 .

[0025] Furthermore, the outer protective cover 16 is wrapped around the outer surface of the glass fiber heat insulation interlayer 17, and the glass fiber heat insulation interlayer 17 has a good heat insulation protection effect.

[0026] Furthermore, the corrosion-resistant protective liner 18 is arranged on the inner surface of the glass fiber insulation interlayer 17. The corrosion-resistant protective liner 18 has a good corrosion-resistant protection effect and can effectively resist the erosion of acidic substances.

[0027] Furthermore, a liquid level gauge is provided inside the liquid level monitoring tube 3 to facilitate real-time monitoring of the liquid level inside the reactor body 8 .

[0028] Working principle: When in use, a sealed kettle cover 11 is installed on the upper end surface of the reactor body 8, and an exhaust pipe 4, a feeding pipe 7, a detection machine pipe 10 and a liquid level monitoring pipe 3 are respectively arranged on the upper end surface of the sealed kettle cover 11. The acidic etching waste liquid is poured into the reactor body 8, and a cover assembly 5 is arranged on the upper end surface of the feeding pipe 7. The cover assembly 5 and the feeding pipe 7 are fixedly connected by a hinge mechanism 6, which is convenient for opening the cover assembly 5, and the alkaline material to be neutralized is fed from the feeding pipe 7 into the reactor body 8. A bearing base 2 is welded and fixed on the upper end surface of the reactor body 8, and a driving motor 1 is installed on the upper end surface of the bearing base 2. The output end of the driving motor 1 is connected to a stirring rod 13 arranged inside the reactor body 8 through a rotating shaft 12. The driving motor 1 is turned on. By driving the stirring rod 13 to rotate rapidly, the acidic and alkaline substances inside the reactor body 8 can be quickly mixed and stirred, thereby accelerating the neutralization reaction. An acid-base indicator 9 is installed inside the detection tube 10, which can be used to monitor the pH value inside the reactor body 8 in real time. The exhaust pipe 4 can be opened to discharge the gaseous substances generated after the neutralization reaction. The internal shell of the reactor body 8 includes a corrosion-resistant protective liner 18, a glass fiber insulation interlayer 17 and an outer protective sleeve 16. The outer protective sleeve 16 is wrapped on the outer surface of the glass fiber insulation interlayer 17. The glass fiber insulation interlayer 17 has a good insulation protection effect. The corrosion-resistant protective liner 18 is arranged on the inner surface of the glass fiber insulation interlayer 17. The corrosion-resistant protective liner 18 has a good corrosion-resistant protection effect and can effectively resist the erosion of acidic substances.

[0029] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0030] The standard parts used in this application document can all be purchased from the market, and the specific connection methods of each part are connected by conventional means such as mature bolts, rivets, welding, etc. in the prior art. In addition, the machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, so no specific description is given here.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A neutralization reactor for treating acidic etching waste liquid, comprising a reactor body (8), characterized in that: The upper end surface of the reactor body (8) is provided with a sealed reactor cover (11), and the upper end surface of the sealed reactor cover (11) is respectively provided with an exhaust pipe (4), a feeding pipe (7), a detection machine pipe (10) and a liquid level monitoring pipe (3); an acid-base indicator (9) is installed inside the detection machine pipe (10); a bearing base (2) is welded and fixed to the upper end surface of the reactor body (8); a driving motor (1) is installed on the upper end surface of the bearing base (2); the output end of the driving motor (1) is connected to a stirring rod (13) arranged inside the reactor body (8) through a rotating shaft (12); and the internal shell of the reactor body (8) comprises a corrosion-resistant protective liner (18), a glass fiber heat insulation interlayer (17) and an outer protective sleeve (16).

2. A neutralization reactor for treating acidic etching waste liquid according to claim 1, characterized in that: The upper end surface of the feeding pipe (7) is provided with a cover plate assembly (5), and the cover plate assembly (5) and the feeding pipe (7) are fixedly connected via a hinge mechanism (6).

3. A neutralization reactor for treating acidic etching waste liquid according to claim 1, characterized in that: A liquid discharge pipe (15) is installed at the bottom end of the reactor body (8).

4. A neutralization reactor for treating acidic etching waste liquid according to claim 3, characterized in that: A liquid discharge control switch valve (14) is installed on the liquid discharge pipe (15).

5. The neutralization reactor for treating acidic etching waste liquid according to claim 1, characterized in that: The outer protective sleeve (16) is wrapped around the outer surface of the glass fiber heat insulation interlayer (17).

6. The neutralization reactor for treating acidic etching waste liquid according to claim 1, characterized in that: The corrosion-resistant protective liner (18) is arranged on the inner surface of the glass fiber heat insulation interlayer (17).

7. The neutralization reactor for treating acidic etching waste liquid according to claim 1, characterized in that: A liquid level meter is arranged inside the liquid level monitoring tube (3).

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