CN215428940U

CN215428940U - High-efficient acid-dissolving device

Info

Publication number: CN215428940U
Application number: CN202121200935.6U
Authority: CN
Inventors: 肖峰; 李长东; 阮丁山; 李凤光
Original assignee: Hunan Brunp Recycling Technology Co Ltd; Guangdong Brunp Recycling Technology Co Ltd; Hunan Bangpu Automobile Circulation Co Ltd
Current assignee: Hunan Brunp Recycling Technology Co Ltd; Guangdong Brunp Recycling Technology Co Ltd; Hunan Bangpu Automobile Circulation Co Ltd
Priority date: 2021-05-31
Filing date: 2021-05-31
Publication date: 2022-01-07
Anticipated expiration: 2031-05-31

Abstract

The utility model discloses a high-efficiency acid dissolving device, which comprises: the reaction kettle comprises a reaction kettle body, a bubbling boiling plate and a waste gas system, wherein the upper part of the reaction kettle body is provided with a feed inlet, an acid liquor inlet and an exhaust port, the lower part of the reaction kettle body is provided with a nitrogen displacement port, a steam inlet and a qualified liquid outlet, the bubbling boiling plate is horizontally arranged at the lower part of the reaction kettle body, and the waste gas system comprises a condensation filtering device, an exhaust fan and a hydrogen collecting device which are sequentially arranged along the flowing direction of waste gas. The utility model carries out acid dissolution on the alloy material in a continuous bubbling boiling mode, can continuously and efficiently dissolve the alloy material, ensures the continuity of production, is provided with the waste gas system and the nitrogen gas replacement port, uses the waste gas system to treat and collect hydrogen gas, can avoid environmental pollution caused by the fact that acid mist-containing hydrogen gas generated in the traditional alloy acid dissolution process is discharged into the atmosphere, can sweep and replace air in a reaction kettle by nitrogen gas when the device is started and stopped, and can avoid the serious potential safety hazard problem of flammability and explosiveness of the hydrogen gas.

Description

High-efficient acid-dissolving device

Technical Field

The utility model relates to the technical field of chemical equipment, in particular to a high-efficiency acid dissolving device.

Background

With the development of industrial technology, people use a large amount of alloy materials such as Ni, Co, Mn and the like in industry and life, but the reserves of the alloy elements on earth are not optimistic, so the recycling scale of the alloy elements in various alloy materials is larger and larger, but in the prior art, the utilization of the alloy materials containing the elements such as nickel, cobalt, manganese and the like firstly needs to dissolve the alloy materials in acid to become soluble salt, and then the next step of element separation is carried out. The existing method has more problems in the acid dissolution process of the alloy material, the acid dissolution speed of the massive alloy material is slow, the released hydrogen has serious safety problems, and the hydrogen is wasted when being discharged into the atmosphere. Although the related art has described that the dissolution speed is improved by introducing steam, the related art mainly has a heating effect and has a limited effect on stirring the materials. And a hydrogen recovery system is not provided, the generated hydrogen is directly discharged into the air and is wasted, and the hydrogen in the acid dissolving device is dangerous.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the utility model provides the efficient acid dissolving device which can efficiently promote acid dissolution of the block alloy, has high production efficiency, can recycle the produced hydrogen, is safe and environment-friendly, and meets the requirement of large-scale alloy material production at present.

The high-efficiency acid dissolution device according to the embodiment of the first aspect of the utility model comprises:

the reaction kettle comprises a reaction kettle body, wherein the upper part of the reaction kettle body is provided with a feeding port, an acid liquid inlet and an exhaust port, and the lower part of the reaction kettle body is provided with a nitrogen displacement port, a steam inlet and a qualified liquid outlet;

the bubbling boiling plate is horizontally arranged at the lower part in the reaction kettle body, and a plurality of through holes are formed in the bubbling boiling plate;

the waste gas system comprises a condensation filtering device, an exhaust fan and a hydrogen collecting device which are sequentially arranged along the flowing direction of waste gas, wherein the condensation filtering device is connected with the exhaust port.

The high-efficiency acid dissolving device provided by the embodiment of the utility model has at least the following beneficial effects:

1. according to the utility model, the alloy material is subjected to acid dissolution in a continuous bubbling boiling manner through the bubbling boiling plate, so that the alloy material can be continuously and efficiently dissolved, the production continuity is ensured, and the requirement of large-scale production is met.

2. The utility model is provided with the waste gas system and the nitrogen replacement port, and the waste gas system is used for treating and collecting hydrogen, so that the environmental pollution caused by the emission of acid mist-containing hydrogen generated in the traditional alloy acid dissolving process into the atmosphere can be avoided, and the recovered high-concentration hydrogen can generate certain economic benefit; when the device is started and stopped, nitrogen is used for purging and replacing air in the reaction kettle, so that the serious potential safety hazard problem that hydrogen is flammable and explosive can be avoided.

3. The device used by the utility model has simple structure and convenient maintenance, and can specially configure each part according to the requirement of the acid-soluble working condition of the alloy material, thereby increasing the acid-soluble efficiency.

According to some embodiments of the present invention, the transition replacement bin is connected above the charging opening, the transition replacement bin includes an upper sealing door and a lower sealing door, side walls of the upper sealing door, the lower sealing door and the transition replacement bin can enclose a closed chamber, and a side wall of the transition replacement bin is provided with an air inlet and an air outlet.

According to some embodiments of the utility model, the lower side wall of the reaction kettle body is further provided with an ion concentration measuring instrument.

According to some embodiments of the utility model, the ion concentration measuring apparatus further comprises a qualified liquid collecting tank, the qualified liquid collecting tank is communicated with the qualified liquid outlet, and the qualified liquid outlet is connected with a valve which is electrically connected with the ion concentration measuring apparatus.

According to some embodiments of the utility model, the reactor further comprises a balance pipe connected between the accept solution collection tank and the reactor body.

According to some embodiments of the utility model, the inner wall of the reaction vessel body is provided with an acid-resistant coating or composite layer.

According to some embodiments of the utility model, the inner wall of the reaction vessel body is coated with polytetrafluoroethylene, corundum ceramic sheet, titanium metal or alloy.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic overall structure diagram of an embodiment of the present invention;

fig. 2 is a schematic structural diagram of the transition replacement bin of the present invention.

Reference numerals: the device comprises a reaction kettle body 100, a feed inlet 110, an acid liquor inlet 120, an exhaust port 130, a nitrogen displacement port 140, a steam inlet 150, a qualified liquid outlet 160, a bubbling boiling plate 200, a through hole 210, a fixing plate 220, a condensation filtering device 310, an exhaust fan 320, a hydrogen collecting device 330, a transition displacement bin 400, an upper sealing door 410, a lower sealing door 420, an air inlet 430, an air outlet 440, an ion concentration measuring instrument 500, a qualified liquid collecting tank 600, a valve 610 and a balance pipe 700.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

Referring to fig. 1, a high-efficiency acid dissolution apparatus includes:

the reaction kettle comprises a reaction kettle body 100, wherein the upper part of the reaction kettle body 100 is provided with a feed inlet 110, an acid liquor inlet 120 and an exhaust outlet 130, and the lower part of the reaction kettle body 100 is provided with a nitrogen displacement port 140, a steam inlet 150 and a qualified liquid outlet 160; the feed inlet 110 is used for adding the block alloy, the acid liquid inlet is used for adding acid, the exhaust port 130 is used for discharging waste gas in the reaction kettle body 100, the nitrogen displacement port 140 is used for introducing nitrogen to displace air in the kettle when the device is started and stopped, so that the hydrogen generated by acid dissolution and the air are prevented from generating combustion explosion reaction, the oxygen content in the reaction kettle body 100 is ensured to reach a set standard, the steam inlet 150 is used for introducing steam into the reaction kettle body 100, and the qualified liquid outlet 160 is used for discharging qualified liquid for detecting the ion concentration;

the bubbling boiling plate 200 is horizontally arranged at the lower part in the reaction kettle body 100, a plurality of through holes 210 are formed in the bubbling boiling plate 200, the size and the density of the through holes 210 are designed according to the properties of alloy materials, the bubbling boiling plate 200 is positioned above the steam inlet 150, and the lower part of the bubbling boiling plate 200 is connected with the bottom of the reaction kettle body 100 through a fixing plate 220; the steam introduced from the bottom of the reaction kettle body 100 passes through the bubbling boiling plate 200, so that the acid solution can be heated, the solid alloy material can be stirred, and the acid dissolving process of the material is promoted.

The exhaust gas system comprises a condensation filtering device 310, an exhaust fan 320 and a hydrogen collecting device 330 which are sequentially arranged along the flowing direction of the exhaust gas, wherein the condensation filtering device 310 is connected with the exhaust port 130; the hydrogen generated in the reaction kettle body 100 contains more water vapor and acid mist, and the purity of the hydrogen is increased after the water vapor and impurities are removed by the condensation and filtration device 310, and the hydrogen can be directly collected to the hydrogen collection device 330 for recycling. For the explosion-proof design, the rotation speed of the exhaust fan 320 is adjusted according to the pressure in the reaction kettle body 100, and is used for discharging reaction gas and maintaining the negative pressure of the system.

In some embodiments, the transition replacement bin 400 is further included, referring to fig. 2, the transition replacement bin 400 is connected above the charging port 110, the transition replacement bin 400 includes an upper sealing door 410 and a lower sealing door 420, the upper sealing door 410, the lower sealing door 420 and the side wall of the transition replacement bin 400 can enclose a closed chamber, and the side wall of the transition replacement bin 400 is provided with an air inlet 430 and an air outlet 440. Before each batch of alloy materials are put into the charging opening 110, the batch of alloy materials pass through the transitional replacement bin 400, the lower sealing door 420 is closed, the upper sealing door 410 is opened, the alloy materials are added, the upper sealing door 410 is closed again, the alloy materials pass through the air inlet 430 and the air outlet 130, nitrogen is introduced for replacement, the air outlet 130 and the air inlet 430 are closed in sequence after the replacement is qualified, and the lower sealing door 420 is opened again, so that the alloy materials enter the reaction kettle body 100 through the charging opening 110. The transition replacement bin 400 can prevent air from being introduced during feeding in the reaction process, and safe continuous production is ensured.

In some embodiments, the lower sidewall of the reaction vessel body 100 is further provided with an ion concentration measuring instrument 500. The ion concentration measuring instrument 500 automatically discharges qualified liquid after detecting that the ion concentration in the solution reaches the requirement.

In some embodiments, the ion concentration measuring apparatus further comprises a qualified liquid collecting tank 600, the qualified liquid collecting tank 600 is communicated with the qualified liquid outlet 160, the qualified liquid outlet 160 is connected with a valve 610, and the valve 610 is electrically connected with the ion concentration measuring apparatus 500. After the qualified liquid enters a qualified liquid collecting tank 600, impurities and insoluble substances are precipitated, and supernate is extracted and enters the next procedure; the ion concentration measuring instrument 500 can determine the acid adding amount or the liquid discharge amount according to the ion concentration, when the ion concentration measuring instrument 500 detects that the ion concentration in the solution meets the requirement, the valve 610 is controlled to be opened, the qualified liquid is automatically discharged, and manual control is not needed; when the ion concentration measuring instrument 500 detects that the acid solution concentration in the reaction kettle body 100 is insufficient, the acid solution inlet 120 is also controlled to add the acid solution into the reaction kettle body 100, so that continuous production is ensured.

In some embodiments, the apparatus further comprises a balance pipe 700, and the balance pipe 700 is connected between the accept solution collecting tank 600 and the reaction kettle body 100. The balance pipe 700 can balance the air pressure between the reaction kettle body 100 and the qualified liquid collecting tank 600, and the smooth circulation of the qualified liquid is ensured.

In some of these embodiments, the inner wall of the reaction vessel body 100 is provided with an acid resistant coating or composite layer.

In some embodiments, the inner wall of the reaction vessel body 100 is coated with teflon, corundum ceramic plate, titanium metal or alloy, and the acid-resistant material can improve the service life of the reaction vessel body 100.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims

1. An efficient acid dissolution device, comprising:

2. The apparatus according to claim 1, further comprising a transition replacement bin connected above the charging port, wherein the transition replacement bin comprises an upper sealing door and a lower sealing door, the side walls of the upper sealing door, the lower sealing door and the transition replacement bin can enclose a closed chamber, and the side wall of the transition replacement bin is provided with an air inlet and an air outlet.

3. The apparatus of claim 1, wherein the lower sidewall of the reaction vessel is further provided with an ion concentration meter.

4. The apparatus of claim 3, further comprising a qualified liquid collection tank, wherein the qualified liquid collection tank is in communication with the qualified liquid outlet, and the qualified liquid outlet is connected to a valve, and the valve is electrically connected to the ion concentration measurement instrument.

5. The apparatus of claim 4, further comprising a balance pipe connected between the accept solution collection tank and the reaction vessel body.

6. The high-efficiency acid dissolution apparatus according to claim 1, wherein the inner wall of the reaction vessel body is provided with an acid-resistant coating or composite layer.

7. The apparatus of claim 6, wherein the inner wall of the reaction vessel body is coated with polytetrafluoroethylene, corundum ceramic sheet, titanium metal or alloy.