Sulfuric acid concentration and recovery device

Abstract

The utility model relates to the technical field of concentration and recovery devices, in particular to a sulfuric acid concentration and recovery device, and aims to solve the technical problems that most of the sulfuric acid concentration and recovery devices adopt a mode of heating to evaporate water in sulfuric acid for concentration, and the mode can evaporate the water but possibly generate sulfuric acid steam to form acid mist. The production and the surrounding environment are influenced; according to the technical scheme, the sulfuric acid concentration and recovery device comprises a feeding assembly, a foot supporting assembly, an electrifying assembly, a supporting assembly, an air exhaust assembly and an air washing assembly, compared with a traditional sulfuric acid concentration and recovery device which adopts a mode of heating and evaporating moisture in low-concentration sulfuric acid to concentrate and easily generates sulfuric acid steam to pollute the air environment, the sulfuric acid concentration and recovery device has the advantages that a mode of electrolyzing and decomposing water is adopted, a dilute sulfuric acid solution is electrified, water molecules are electrolyzed into hydrogen and oxygen, and meanwhile, gas is pumped out and washed; sulfuric acid steam possibly existing is removed, and safety and cleanliness of the air environment are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of concentration recovery devices, in particular to a sulfuric acid concentration recovery device. Background Art

[0002] Sulfuric acid is an important basic chemical raw material, widely used in industries such as chemical and steel. In particular, large quantities of sulfuric acid are consumed in the metallurgical and organic chemical industries. The use of sulfuric acid produces low-concentration sulfuric acid that is insufficient to meet production needs. Direct discharge of low-concentration sulfuric acid can cause environmental pollution, necessitating the concentration and recovery of low-concentration sulfuric acid. However, most sulfuric acid concentration and recovery devices use heating to evaporate water from the sulfuric acid. While this method can evaporate water, it can also generate sulfuric acid vapor, forming acid mist, which can impact production and the surrounding environment. Utility Model Content

[0003] In order to overcome the problem that most sulfuric acid concentration and recovery devices use the method of heating and evaporating the water in the sulfuric acid for concentration, although this method can evaporate the water, it may also produce sulfuric acid vapor to form acid mist, which affects production and the surrounding environment.

[0004] The technical solution of the utility model is: a sulfuric acid concentration and recovery device, including a concentration barrel, a material conveying assembly, a foot support assembly, an electrification assembly, a support assembly, an exhaust assembly and an air washing assembly; the material conveying assembly is provided at the bottom of the concentration barrel, the foot support assembly is provided at the bottom of the concentration barrel, the electrification assembly is provided above the concentration barrel, the support assembly is provided at the bottom of the electrification assembly, the exhaust assembly is provided above the concentration barrel, and the air washing assembly is provided on one side of the exhaust assembly.

[0005] Preferably, a concentration barrel is provided to accommodate low-concentration sulfuric acid, low-concentration sulfuric acid is fed into the concentration barrel through a feeding assembly and high-concentration sulfuric acid is discharged, the concentration barrel is supported and leveled by a foot support assembly, water is electrolyzed by an energized assembly, the energized assembly is installed and fixed by a support assembly, hydrogen and oxygen are extracted from the concentration barrel by an exhaust assembly, and sulfuric acid vapor that may be contained in the exhaust gas is removed by a gas washing assembly.

[0006] Preferably, the material feeding assembly includes a material pipe and a material feeding valve; a material pipe is provided at the bottom of the concentration barrel, and a material feeding valve is provided on one side of the material pipe; low-concentration sulfuric acid is fed into the concentration barrel through the material pipe and high-concentration sulfuric acid is discharged, and the flow state of the material pipe is controlled by the material feeding valve.

[0007] Preferably, the foot support assembly includes support legs, threaded rods and a base; the bottom of the concentration barrel is provided with support legs, the bottom of the support legs is provided with threaded rods, and the bottom of the threaded rods is provided with a base; by rotating the threaded rods, the length of the support legs and the base is changed, so that the concentration barrel can adapt to uneven ground.

[0008] Preferably, the power supply component includes electrodes, wires and a high-voltage module; an electrode is provided inside the concentration barrel, a wire is provided on one side of the electrode, and a high-voltage module is provided at one end of the wire; high voltage electricity is generated by the high-voltage module, and the high voltage electricity is introduced into the electrode through the wire to electrolyze water.

[0009] Preferably, the support assembly includes a base and reinforcing ribs; a base is provided at the bottom of the high-voltage module, and reinforcing ribs are provided at the bottom of the base; the high-voltage module is installed and fixed by the base, and the strength of the base is strengthened by the reinforcing ribs.

[0010] Preferably, the exhaust assembly includes an air inlet pipe, a fan and an air outlet pipe; an air inlet pipe is provided above the concentration barrel, a fan is provided at one end of the air inlet pipe, and an air outlet pipe is provided on one side of the fan; hydrogen and oxygen are extracted from the concentration barrel by the fan, sent into the air washing assembly through the air inlet pipe, and exhausted through the air outlet pipe.

[0011] Preferably, the air washing component includes an air washing barrel, a drain pipe and a drain valve; an air washing barrel is provided at the bottom of the fan, a drain pipe is provided at the bottom of the air washing barrel, and a drain valve is provided on one side of the drain pipe; water is contained in the air washing barrel to enter the air washing, and the water is discharged through the drain pipe, and the flow state of the drain pipe is controlled by the drain valve.

[0012] Beneficial effects of the utility model:

[0013] 1. Compared with traditional sulfuric acid concentration and recovery devices, which use heating to evaporate water from sulfuric acid, this method can evaporate water but may also produce sulfuric acid vapor to form acid mist, which affects production and the surrounding environment. This device uses electrolysis to decompose water. Electricity is applied to the dilute sulfuric acid solution to electrolyze water molecules into hydrogen and oxygen. At the same time, the gas is extracted and scrubbed to remove any sulfuric acid vapor, ensuring a safe and clean air environment.

[0014] 2. During sulfuric acid concentration, the feed valve is opened to guide low-concentration sulfuric acid into the concentration barrel through the feed pipe. The base is fixed with a high-voltage module under the support of the reinforcement ribs. The high-voltage module generates high voltage electricity, which is introduced into the electrodes through wires, so that the two sets of electrodes generate a huge voltage to electrolyze the water in the dilute sulfuric acid into hydrogen and oxygen. After the concentration is completed, the feed valve is opened to guide the high-concentration sulfuric acid through the feed pipe to achieve low-temperature sulfuric acid concentration. This solves the problem that most sulfuric acid concentration and recovery devices use heating to evaporate water in low-concentration sulfuric acid for concentration, which easily generates sulfuric acid vapor to pollute the air environment.

[0015] 3. During the scrubbing process, the fan works to create low pressure, leading hydrogen and oxygen from the concentration barrel into the scrubbing barrel through the air inlet pipe. The scrubbing barrel is filled with water, which can retain the sulfuric acid vapor and discharge the hydrogen and oxygen through the air outlet pipe. After the concentration is completed, the drain valve is opened to discharge the water through the drain pipe. When the device is ready, the threaded rod rotates to change the length between the support legs and the base so that the concentration barrel can adapt to the uneven ground and level the concentration barrel for better sulfuric acid concentration and recovery operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Shown is a schematic diagram of the three-dimensional structure of a sulfuric acid concentration and recovery device of the present invention;

[0017] Figure 2 Shown is a schematic diagram of the three-dimensional structure of the foot support assembly of a sulfuric acid concentration and recovery device of the present invention;

[0018] Figure 3 Shown is a schematic diagram of the three-dimensional structure of the power supply components of a sulfuric acid concentration and recovery device of the present invention;

[0019] Figure 4 Shown is a schematic diagram of the three-dimensional structure of a gas washing component of a sulfuric acid concentration and recovery device of the present invention.

[0020] Explanation of the accompanying symbols: 1. Concentration barrel; 2. Feeding assembly; 3. Foot support assembly; 4. Power supply assembly; 5. Support assembly; 6. Exhaust assembly; 7. Washing assembly; 201. Feed pipe; 202. Feeding valve; 301. Support leg; 302. Threaded rod; 303. Base; 401. Electrode; 402. Wire; 403. High-voltage module; 501. Base; 502. Reinforcement rib; 601. Inlet pipe; 602. Fan; 603. Outlet pipe; 701. Washing barrel; 702. Drain pipe; 703. Drain valve. DETAILED DESCRIPTION

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] See also Figure 1 The utility model provides an embodiment: a sulfuric acid concentration and recovery device, including a concentration barrel 1, a material conveying assembly 2, a foot support assembly 3, an electrification assembly 4, a support assembly 5, an exhaust assembly 6 and an air washing assembly 7; the material conveying assembly 2 is provided at the bottom of the concentration barrel 1, the foot support assembly 3 is provided at the bottom of the concentration barrel 1, the electrification assembly 4 is provided above the concentration barrel 1, the support assembly 5 is provided at the bottom of the electrification assembly 4, the exhaust assembly 6 is provided above the concentration barrel 1, and the air washing assembly 7 is provided on one side of the exhaust assembly 6.

[0023] See also Figure 2In this embodiment, the material feeding assembly 2 includes a material pipe 201 and a material feeding valve 202. The material pipe 201 is provided at the bottom of the concentration barrel 1, and the material feeding valve 202 is provided on one side of the material pipe 201. Low-concentration sulfuric acid is fed into the concentration barrel 1 and high-concentration sulfuric acid is discharged through the material pipe 201, and the flow state of the material pipe 201 is controlled by the material feeding valve 202; the foot support assembly 3 includes a support leg 301, a threaded rod 302 and a base 303. The support leg 301 is provided at the bottom of the concentration barrel 1, the threaded rod 302 is provided at the bottom of the support leg 301, and the base 303 is provided at the bottom of the threaded rod 302. By rotating the threaded rod 302, the length of the support leg 301 and the base 303 is changed, so that the concentration barrel 1 can adapt to uneven ground.

[0024] See also Figure 3 In this embodiment, the power supply component 4 includes an electrode 401, a wire 402 and a high-voltage module 403. The electrode 401 is provided inside the concentration barrel 1, and the wire 402 is provided on one side of the electrode 401. The high-voltage module 403 is provided at one end of the wire 402. High voltage electricity is generated by the high-voltage module 403, and the high voltage electricity is introduced into the electrode 401 through the wire 402 to electrolyze water; the support component 5 includes a base 501 and a reinforcing rib 502. The base 501 is provided at the bottom of the high-voltage module 403, and the reinforcing rib 502 is provided at the bottom of the base 501. The high-voltage module 403 is installed and fixed by the base 501, and the strength of the base 501 is strengthened by the reinforcing rib 502.

[0025] See also Figure 4 In this embodiment, the exhaust component 6 includes an air inlet pipe 601, a fan 602 and an air outlet pipe 603. The air inlet pipe 601 is provided above the concentration barrel 1, and a fan 602 is provided at one end of the air inlet pipe 601. An air outlet pipe 603 is provided on one side of the fan 602. Hydrogen and oxygen are extracted from the concentration barrel 1 through the fan 602, sent into the washing barrel 701 through the air inlet pipe 601, and exhausted through the air outlet pipe 603; the washing component 7 includes a washing barrel 701, a drain pipe 702 and a drain valve 703. The washing barrel 701 is provided at the bottom of the fan 602, and the drain pipe 702 is provided at the bottom of the washing barrel 701. A drain valve 703 is provided on one side of the drain pipe 702. Water is contained in the washing barrel 701 and then discharged through the drain pipe 702. The flow state of the drain pipe 702 is controlled by the drain valve 703.

[0026] When the device is in preparation, the threaded rod 302 rotates to change the length between the support leg 301 and the base 303, so that the concentration barrel 1 can adapt to uneven ground and level the concentration barrel 1 for better sulfuric acid concentration and recovery operations;

[0027] During sulfuric acid concentration, the discharge valve 202 is opened to introduce low-concentration sulfuric acid into the concentration tank 1 through the feed pipe 201. The base 501 is supported by the reinforcement ribs 502 and fixed with the high-voltage module 403. The high-voltage module 403 generates high voltage electricity, which is introduced into the electrodes 401 through the wires 402. The two sets of electrodes 401 generate a huge voltage to electrolyze the water in the dilute sulfuric acid into hydrogen and oxygen. After the concentration is completed, the discharge valve 202 is opened to discharge the high-concentration sulfuric acid through the feed pipe 201.

[0028] During the scrubbing process, the fan 602 works to create a low pressure, and the hydrogen and oxygen are discharged from the concentration tank 1 and enter the scrubbing tank 701 through the air inlet pipe 601. The scrubbing tank 701 is filled with water, which can retain the sulfuric acid vapor and discharge the hydrogen and oxygen through the air outlet pipe 603. After the concentration is completed, the drain valve 703 is opened to discharge the water through the drain pipe 702.

[0029] Through the above steps, a concentration barrel 1 is provided to accommodate low-concentration sulfuric acid, low-concentration sulfuric acid is fed into the concentration barrel 1 and high-concentration sulfuric acid is discharged through the material feeding assembly 2, the concentration barrel 1 is supported and leveled by the foot support assembly 3, water is electrolyzed by the power supply assembly 4, the power supply assembly 4 is installed and fixed by the support assembly 5, hydrogen and oxygen are extracted from the concentration barrel 1 by the exhaust assembly 6, and sulfuric acid vapor that may be contained in the exhaust gas is removed by the scrubbing assembly 7.

[0030] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the purpose of the present invention.

Claims

1. A sulfuric acid concentration and recovery device, comprising a concentration barrel (1); characterized in that: The invention also includes a material conveying assembly (2), a foot support assembly (3), an electrification assembly (4), a support assembly (5), an exhaust assembly (6) and an air washing assembly (7); the material conveying assembly (2) is provided at the bottom of the concentration barrel (1), the foot support assembly (3) is provided at the bottom of the concentration barrel (1), the electrification assembly (4) is provided above the concentration barrel (1), the support assembly (5) is provided at the bottom of the electrification assembly (4), the exhaust assembly (6) is provided above the concentration barrel (1), and the air washing assembly (7) is provided on one side of the exhaust assembly (6).

2. A sulfuric acid concentration and recovery device according to claim 1, characterized in that: The material discharge assembly (2) comprises a material pipe (201) and a material discharge valve (202); the material pipe (201) is provided at the bottom of the concentration barrel (1), and the material discharge valve (202) is provided on one side of the material pipe (201).

3. A sulfuric acid concentration and recovery device according to claim 1, characterized in that: The foot support assembly (3) comprises a support leg (301), a threaded rod (302) and a base (303); the bottom of the concentration barrel (1) is provided with the support leg (301), the bottom of the support leg (301) is provided with the threaded rod (302), and the bottom of the threaded rod (302) is provided with the base (303).

4. A sulfuric acid concentration and recovery device according to claim 1, characterized in that: The energizing component (4) comprises an electrode (401), a wire (402) and a high-voltage module (403); the electrode (401) is arranged inside the concentration barrel (1), the wire (402) is arranged on one side of the electrode (401), and the high-voltage module (403) is arranged at one end of the wire (402).

5. A sulfuric acid concentration and recovery device according to claim 4, characterized in that: The support assembly (5) comprises a support platform (501) and reinforcing ribs (502); the support platform (501) is provided at the bottom of the high-voltage module (403), and the reinforcing ribs (502) are provided at the bottom of the support platform (501).

6. A sulfuric acid concentration and recovery device according to claim 4, characterized in that: The air extraction assembly (6) comprises an air inlet pipe (601), a fan (602) and an air outlet pipe (603); the air inlet pipe (601) is arranged above the concentration barrel (1), the fan (602) is arranged at one end of the air inlet pipe (601), and the air outlet pipe (603) is arranged on one side of the fan (602).

7. A sulfuric acid concentration and recovery device according to claim 6, characterized in that: The air washing assembly (7) comprises an air washing bucket (701), a drainage pipe (702) and a drainage valve (703); the air washing bucket (701) is provided at the bottom of the fan (602), the drainage pipe (702) is provided at the bottom of the air washing bucket (701), and the drainage valve (703) is provided on one side of the drainage pipe (702).

Images