Rapid neutralization device for surface treatment liquid

Abstract

The utility model relates to the field of neutralization reaction tanks, in particular to a rapid neutralization device for surface treatment liquid. The technical implementation problem of the utility model is as follows: a large amount of heat is generated in the neutralization reaction process of etching liquid, if the neutralization reaction is too fast or too much neutralizer is added, the solution is possibly boiled or splashed, and potential safety hazards are caused. According to the technical scheme, the rapid neutralizing device for the surface treating fluid comprises a base, a tank body and the like, and the base is fixedly connected with a tank body. After cooled gas exhausted by the second connecting pipe enters the tank body, the cooled gas moves upwards in the tank body, that is, the cooled gas fully contacts with etching liquid in the tank body, so that the cooled gas reduces heat generated by neutralization reaction in the tank body, the temperature of the etching liquid is reduced, and the temperature of the etching liquid is reduced. And too fast neutralization reaction or excessive neutralizer addition can be avoided.

Description

Technical Field

[0001] The utility model relates to the field of neutralization reaction tanks, in particular to a surface treatment liquid rapid neutralization device. Background Art

[0002] Etching fluids are usually strong acid or alkaline solutions, which are corrosive. If they are not neutralized, these solutions may cause harm to the environment and human body. The process of neutralizing etching fluid is called waste liquid treatment. The purpose of waste liquid treatment is to convert acidic or alkaline etching fluids into harmless or low-harm substances, which can then be safely disposed of. However, existing etching fluids will generate a lot of heat during the neutralization reaction. If the neutralization reaction is too fast or too much neutralizer is added, it may cause the solution to boil or splash, causing safety hazards. In addition, harmful gases such as chlorine or nitrogen dioxide will be generated during the neutralization of etching fluids. When performing neutralization operations in confined spaces, adequate ventilation must be ensured to prevent gas accumulation from endangering the safety of workers. Utility Model Content

[0003] In order to overcome the disadvantage that etching solution generates a large amount of heat during the neutralization reaction process, and if the neutralization reaction is too fast or too much neutralizer is added, the solution may boil or splash, causing safety hazards, the utility model provides a surface treatment liquid rapid neutralization device.

[0004] The technical implementation scheme of the utility model is: a surface treatment liquid rapid neutralization device, including a base, a tank body, a cover, an exhaust pipe, a feed pipe, a drain valve, a connecting plate, a DD motor, a connecting rod and a stirring blade; the base is fixedly connected to the tank body; the tank body is fixedly connected to the cover; the cover is connected to the exhaust pipe; the cover is connected to the feed pipe; the tank body is connected to the drain valve; the inside of the tank body is connected to the connecting plate; the connecting plate is connected to the DD motor; the output shaft of the DD motor is connected to the connecting rod; the connecting rod is connected to a plurality of stirring blades; also includes a first connecting pipe, a guide plate, a second connecting pipe and a one-way valve; the cover is connected to the first connecting pipe, the first connecting pipe is connected to the exhaust pipe, and the first connecting pipe is provided with a plurality of four exhaust ports; the first connecting pipe is connected to the guide plate; the tank body is connected to a plurality of second connecting pipes; each second connecting pipe is connected to a one-way valve.

[0005] Optionally, the guide plate is arranged in a hemispherical structure.

[0006] Optionally, a spherical protective shell is provided on the connecting plate.

[0007] Optionally, a separation component is also included; the separation component includes a liquid storage tank, a drain pipe, an air duct and a baffle; all the second connecting pipes are commonly connected to the liquid storage tank; the liquid storage tank is connected to the drain pipe; an air duct is passed through the liquid storage tank, and a plurality of air inlets are opened on the air duct; and a baffle is fixedly connected to the air duct.

[0008] Optionally, the baffle is arranged in a truncated cone structure.

[0009] Optionally, it also includes a cooling component; a cooling component connecting ring, a cooling bin and an air intake pipe; a connecting ring is fixedly connected to the liquid storage tank; the connecting ring is connected to the cooling bin; and the cooling bin is connected to the air intake pipe.

[0010] Compared with the prior art, the utility model has the following advantages: after the cooled gas discharged through the second connecting pipe enters the tank body, the cooled gas moves upward in the tank body, that is, the cooled gas fully contacts the etching liquid in the tank body, so that the cooled gas reduces the heat generated by the neutralization reaction in the tank body, reduces the temperature of the etching liquid, avoids the neutralization reaction being too fast or too much neutralizer being added, which may cause the etching liquid to boil or splash, causing a safety hazard, and at the same time, the cooled gas moves upward to replace the harmful gas in the space formed by the tank body and the cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the first structure of the surface treatment liquid rapid neutralization device of the utility model;

[0012] Figure 2 This is a schematic diagram of the second structure of the surface treatment liquid rapid neutralization device of the utility model;

[0013] Figure 3 for Figure 2 A magnified image of area A;

[0014] Figure 4 It is a structural schematic diagram of the combination of a separation component and a cooling component of the surface treatment liquid rapid neutralization device of the utility model.

[0015] The markings of the components in the accompanying drawings are as follows: 1-base, 2-tank body, 3-lid, 4-exhaust pipe, 5-feed pipe, 6-drain valve, 7-first connecting pipe, 8-guide plate, 9-connecting plate, 10-DD motor, 11-connecting rod, 12-stirring blade, 13-second connecting pipe, 14-check valve, 15-liquid storage tank, 16-drain pipe, 17-air guide pipe, 18-baffle, 19-connecting ring, 20-cooling chamber, 21-inlet pipe, 7a-exhaust port, 17a-inlet port. DETAILED DESCRIPTION

[0016] 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.

[0017] Example 1

[0018] A rapid neutralization device for surface treatment liquid, such as Figure 1-4 As shown, it includes a base 1, a tank body 2, a cover 3, an exhaust pipe 4, a feed pipe 5, a drain valve 6, a connecting plate 9, a DD motor 10, a connecting rod 11 and a stirring blade 12; the base 1 is bolted to the tank body 2; the cover 3 is bolted to the tank body 2; the cover 3 is connected to the exhaust pipe 4; the cover 3 is connected to the feed pipe 5; the tank body 2 is connected to the drain valve 6; the inside of the tank body 2 is connected to the connecting plate 9; the connecting plate 9 is connected to the DD motor 10; the output shaft of the DD motor 10 is connected to the connecting rod 11; the connecting rod 11 is connected to three stirring blades 12 distributed at equal distances;

[0019] It also includes a first connecting pipe 7, a guide plate 8, a second connecting pipe 13 and a one-way valve 14; the cover 3 is connected to the first connecting pipe 7, the first connecting pipe 7 is connected to the exhaust pipe 4, and the first connecting pipe 7 is provided with four exhaust ports 7a; the first connecting pipe 7 is connected to the guide plate 8; the tank body 2 is connected to forty-three second connecting pipes 13 distributed in a circular array; each second connecting pipe 13 is connected to a one-way valve 14.

[0020] The guide plate 8 is arranged in a hemispherical structure to block the etching liquid.

[0021] A spherical protective shell is provided on the connecting plate 9 to guide the etching liquid.

[0022] It also includes a separation component; the separation component includes a liquid storage tank 15, a drain pipe 16, an air duct 17 and a baffle 18; all the second connecting pipes 13 are connected to the liquid storage tank 15; the liquid storage tank 15 is connected to the drain pipe 16; the liquid storage tank 15 is penetrated by an air duct 17, and the air duct 17 is provided with four air inlets 17a in a circular array; the air duct 17 is fixedly connected to the baffle 18.

[0023] The baffle 18 is arranged in a truncated cone structure for guiding the etching liquid.

[0024] It also includes a cooling assembly; a cooling assembly connecting ring 19, a cooling bin 20 and an air intake pipe 21; the connecting ring 19 is fixedly connected to the liquid storage tank 15; the connecting ring 19 is connected to the cooling bin 20; and the cooling bin 20 is connected to the air intake pipe 21.

[0025] First, the staff installs the surface treatment liquid rapid neutralization device at the location where it is needed, then the staff uses an external suction pump to connect with the exhaust pipe 4, then uses an external gas transmission device to connect with the air inlet pipe 21, and then uses an external storage device to connect with the discharge pipe 16, then uses an external feeding device to connect with the feed pipe 5, and then the staff uses the external feeding device to inject the etching liquid and the neutralizer into the tank body 2 through the feed pipe 5, then controls the DD motor 10 to drive the connecting rod 11 to rotate, and the connecting rod 11 drives the stirring blade 12 to rotate, stir the etching liquid and the neutralizer, so that the etching liquid and the neutralizer are evenly mixed. After a long period of stirring, during the neutralization process, the etching liquid will produce harmful gases, that is, neutralization is carried out in a closed space. During operation, it is necessary to ensure sufficient ventilation to prevent gas accumulation. In this process, a large amount of heat will be generated by neutralizing the etching solution. Then, the external gas transmission equipment is controlled to inject gas into the cooling chamber 20 through the air inlet pipe 21, and then the cooling chamber 20 is controlled to operate to cool the injected gas. Then, the cooled gas is injected into the liquid storage tank 15 through the air guide pipe 17. Then, the cooled gas pushes the one-way valve 14 to connect the second connecting pipe 13 with the tank body 2, so that the cooled gas enters the tank body 2 through the second connecting pipe 13. In the process, the external suction equipment is controlled to extract the harmful gas in the space formed by the tank body 2 and the cover 3 through the exhaust pipe 4 and the first connecting pipe 7. In this process, the cold gas discharged from the second connecting pipe 13 After the cooled gas enters the tank body 2, the cooled gas moves upward in the tank body 2, that is, the cooled gas fully contacts the etching liquid in the tank body 2, so that the cooled gas reduces the heat generated by the neutralization reaction in the tank body 2, reduces the temperature of the etching liquid, and avoids the neutralization reaction being too fast or too much neutralizer being added, which may cause the etching liquid to boil or splash, causing safety hazards. At the same time, the cooled gas moves upward to replace the harmful gas in the space formed by the tank body 2 and the cover 3. Since the cooled gas is injected through the bottom, the etching liquid in the tank body 2 will be agitated, and the harmful gas in the space formed by the tank body 2 and the cover 3 will be extracted by suction, that is, in this process, part of the etching liquid will splash upward, and the etching liquid splashing upward will be diverted. The plate 8 blocks to prevent the etching liquid from entering the external suction device through the first connecting pipe 7 and the exhaust pipe 4, and to prevent the suction device from being damaged. In this process, when the one-way valve 14 is opened and closed, the etching liquid in the tank body 2 will enter the liquid storage tank 15 through the second connecting pipe 13. In this process, the etching liquid is blocked by the baffle 18, and the air inlet 17a opened on the air guide pipe 17 is located in the middle of the liquid storage tank 15, that is, the etching liquid will not enter the air guide pipe 17, and the etching liquid is prevented from entering the air guide pipe 17 to affect the secondary ventilation work. The etching liquid entering the liquid storage tank 15 is discharged into the external storage device through the drain pipe 16. After the neutralization reaction is completed, the staff opens the drain valve 6 and then collects the neutralized etching liquid.

[0026] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A surface treatment liquid rapid neutralization device, comprising a base (1), a tank body (2), a cover (3), an exhaust pipe (4), a feed pipe (5), a drain valve (6), a connecting plate (9), a DD motor (10), a connecting rod (11) and a stirring blade (12); the base (1) is fixedly connected to the tank body (2); the cover (3) is fixedly connected to the tank body (2); the cover (3) is connected to the exhaust pipe (4); the cover (3) is connected to the feed pipe (5); the tank body (2) is connected to the drain valve (6); the interior of the tank body (2) is connected to the connecting plate (9); the connecting plate (9) is connected to the DD motor (10); the output shaft of the DD motor (10) is connected to the connecting rod (11); the connecting rod (11) is connected to a plurality of stirring blades (12); the characteristics are: It also comprises a first connecting pipe (7), a guide plate (8), a second connecting pipe (13) and a one-way valve (14); the cover (3) is connected to the first connecting pipe (7), the first connecting pipe (7) is in communication with the exhaust pipe (4), and the first connecting pipe (7) is provided with a plurality of exhaust ports (7a); the first connecting pipe (7) is connected to the guide plate (8); the tank body (2) is in communication with a plurality of second connecting pipes (13); each second connecting pipe (13) is connected to a one-way valve (14).

2. A surface treatment liquid rapid neutralization device according to claim 1, characterized in that: The guide plate (8) is arranged in a hemispherical structure.

3. A surface treatment liquid rapid neutralization device according to any one of claims 1-2, characterized in that: A spherical protective shell is provided on the connecting plate (9).

4. A surface treatment liquid rapid neutralization device according to claim 3, characterized in that: The device also includes a separation component; the separation component includes a liquid storage tank (15), a liquid discharge pipe (16), an air guide pipe (17) and a baffle (18); all the second connecting pipes (13) are commonly connected to the liquid storage tank (15); the liquid storage tank (15) is connected to the liquid discharge pipe (16); an air guide pipe (17) is passed through the liquid storage tank (15), and a plurality of air inlets (17a) are provided on the air guide pipe (17); and the baffle (18) is fixedly connected to the air guide pipe (17).

5. A surface treatment liquid rapid neutralization device according to claim 4, characterized in that: The baffle (18) is arranged in a truncated cone structure.

6. A surface treatment liquid rapid neutralization device according to claim 5, characterized in that: It also includes a cooling assembly; a cooling assembly connecting ring (19), a cooling bin (20) and an air intake pipe (21); the connecting ring (19) is fixedly connected to the liquid storage tank (15); the connecting ring (19) is connected to the cooling bin (20); and the cooling bin (20) is connected to the air intake pipe (21).

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