Bromine quality improving system

Abstract

The utility model relates to a bromine quality improving system, and belongs to the technical field of inorganic chemical equipment. The system comprises a bromine storage tank, a diaphragm pump, a completion liquid pump and a completion liquid tank, the bottom of the completion liquid tank is connected with the completion liquid pump, the completion liquid pump is connected with a distillation system and the bromine storage tank, the bromine storage tank is connected with one end of the diaphragm pump through a bromine water conveying pipeline A, and the other end of the diaphragm pump is connected with the completion liquid tank through a bromine water conveying pipeline B; and the other end of the diaphragm pump is connected with a bromine storage tank through a bromine water conveying pipeline C. Hydrobromic acid in the completion liquid and chlorine are used for chemical reaction, the diaphragm pump is used for enabling the hydrobromic acid to fully react with chlorine in bromine in the bromine storage tank, chlorine is used for generating chloride ions, the chloride ions are dissolved in bromine water, the diaphragm pump is used for discharging the bromine water into the completion liquid tank, and the bromine water is supplied to the distillation system through the completion liquid pump. The bromine in the bromine water is extracted through distillation, so that the purity and the quality of the bromine are improved.

Description

Technical Field

[0001] This utility model relates to a bromine quality improvement system, belonging to the field of inorganic chemical equipment technology. Background Technology

[0002] Bromine plays a vital role in the chemical industry, and its quality directly affects the performance and safety of products. For example, in the field of flame retardants, bromine is used to manufacture bromine-containing flame retardants, which significantly improve the fire resistance of materials. Poor bromine quality can lead to ineffective flame retardancy, increasing the risk of fire. In the pharmaceutical industry, bromine is used to synthesize various drugs, such as sedatives and antiepileptic drugs. Unstable bromine quality can affect the efficacy and safety of these drugs. Furthermore, bromine is used in the manufacture of pesticides, and its quality directly affects the insecticidal and fungicidal effects of pesticides, thus impacting crop yield and quality.

[0003] During production, the oxidized brine enters a blow-out tower, where elemental bromine is separated from the brine via air blowing. The bromine-containing gas reacts with sulfur dioxide and fresh water spray to produce hydrobromic acid and sulfuric acid (formula: Br2 + SO2 + 2H2O → 2HBr + H2SO4). These small droplets containing hydrobromic acid and sulfuric acid are absorbed and enriched in an absorption tower, condensing into a liquid that eventually flows into a finished liquid storage tank. The absorption tower increases the bromine concentration by absorbing and enriching free bromine, yielding the finished liquid. The finished liquid is then distilled to obtain bromine and hydrochloric acid (formula: Cl2 + 2HBr → Br2SO4). 2 +2HBr), the hydrochloric acid and sulfuric acid in the finished solution are mixed to form waste acid, which will be recycled and reused.

[0004] Quality control of bromine is crucial. At the beginning of production, various operations are unstable, and strict control of process operations is required to ensure product quality. For example, the temperature of the distillation column, the control of the bromine liquid level in the distillation column, and the control of the bromine scrubber are all factors that affect the chlorine content in bromine. The higher the chlorine content, the lower the quality of the bromine product. How to effectively remove chlorine from bromine is a technical problem that urgently needs to be solved. Therefore, this utility model is proposed. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a bromine quality enhancement system. The system involves injecting a finished liquid into a bromine storage tank, where the finished liquid mixes with bromine to form a bromine water layer. The finished liquid is then connected to the bromine storage tank, and a diaphragm pump is used to circulate the finished liquid within the tank. A chemical reaction occurs between the hydrobromic acid in the finished liquid and the chlorine gas in the bromine (2Br₂). - +Cl2=Br 2 +2Cl -The process involves generating chloride ions from chlorine gas, which then dissolve in bromine water. A diaphragm pump is used to pump the bromine water into a finished liquid tank. The finished liquid pump then supplies the bromine water to the distillation system, where the bromine in the bromine water is extracted by distillation, thereby improving the purity and quality of the bromine.

[0006] The technical solution of this utility model is as follows:

[0007] A bromine quality improvement system includes a bromine storage tank, a diaphragm pump, a finished liquid pump, and a finished liquid tank. The finished liquid pump is connected to the bottom of the finished liquid tank. The finished liquid pump is connected to a distillation system and the bromine storage tank. The bromine storage tank and the distillation system are existing equipment in bromine production. The bromine produced after distillation is directly discharged into the bromine storage tank. One end of the diaphragm pump is connected to the bromine storage tank via a bromine water delivery pipeline A. The other end of the diaphragm pump is connected to the finished liquid tank via a bromine water delivery pipeline B. The other end of the diaphragm pump is also connected to the bromine storage tank via a bromine water delivery pipeline C.

[0008] According to a preferred embodiment of this invention, the bromine storage tank is equipped with a radar level gauge and a hydrostatic level gauge. The two level gauges, which operate on different principles, serve as backups for each other, ensuring that if one level gauge fails, the other level gauge can continue to operate, thus guaranteeing the continuity and safety of production.

[0009] According to a preferred embodiment of this utility model, the connection pipeline between the liquid pump and the bromine storage tank is a liquid completion pipeline, and a solenoid valve A is installed on the liquid completion pipeline to control the liquid completion flow rate and the liquid level in the bromine storage tank.

[0010] According to a preferred embodiment of the present invention, a solenoid valve C is provided on the bromine water delivery pipeline B, and a solenoid valve B is provided on the bromine water delivery pipeline C.

[0011] The working process of the above-mentioned bromine quality improvement system is as follows:

[0012] Once the liquid pump starts and solenoid valve A opens, the finished liquid from the finished liquid tank is injected into the bromine storage tank. The finished liquid mixes with the bromine to form a bromine water layer. Then, the diaphragm pump starts and solenoid valve B opens, allowing the finished liquid to circulate within the bromine storage tank. The hydrobromic acid in the finished liquid reacts with the chlorine gas in the bromine to form a chemical reaction (2Br⁻ + Cl₂ = Br⁻). 2 +2Cl - Chlorine gas is converted into chloride ions, which dissolve in bromine water. Then, solenoid valve B is closed and solenoid valve C is opened. A diaphragm pump is used to discharge the bromine water into the finished liquid tank. The finished liquid pump then supplies the bromine water to the distillation system, where the bromine in the bromine water is extracted by distillation, thereby improving the purity and quality of the bromine.

[0013] The beneficial effects of this utility model are as follows:

[0014] This invention utilizes the chemical reaction (2BR) between hydrobromic acid and chlorine in the finished liquid. -+CL2=BR 2 +2CL - A diaphragm pump is used to fully react hydrobromic acid with chlorine gas in the bromine storage tank, generating chloride ions from the chlorine gas. The chloride ions dissolve in bromine water, and the bromine water is discharged into the finished liquid tank using a diaphragm pump. The finished liquid pump then supplies the bromine water to the distillation system, where the bromine in the bromine water is extracted by distillation, thereby improving the purity and quality of the bromine. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] In the diagram: 1. Completed liquid tank, 2. Completed liquid pump, 3. Bromine water delivery line A, 4. Solenoid valve B, 5. Solenoid valve C, 6. Bromine water delivery line B, 7. Static pressure level gauge, 8. Completed liquid line, 9. Radar level gauge, 10. Solenoid valve A, 11. Bromine storage tank, 12. Diaphragm pump, 13. Bromine water delivery line C, 14. Distillation system. Detailed Implementation

[0017] The present invention will be further described below with reference to the embodiments and accompanying drawings, but is not limited thereto.

[0018] Example 1:

[0019] like Figure 1 As shown, this embodiment provides a bromine quality improvement system, including a bromine storage tank 11, a diaphragm pump 12, a finished liquid pump 2, and a finished liquid tank 1. The finished liquid tank 1 is connected to the bottom of the finished liquid pump 2, which is connected to a distillation system 14 and the bromine storage tank 11. The bromine storage tank 11 and the distillation system 14 are existing equipment for bromine production. The bromine produced after distillation is directly discharged into the bromine storage tank. The bromine storage tank 11 is connected to one end of the diaphragm pump 12 through a bromine water delivery pipeline A3. The other end of the diaphragm pump 12 is connected to the finished liquid tank 1 through a bromine water delivery pipeline B6. The other end of the diaphragm pump 12 is also connected to the bromine storage tank 11 through a bromine water delivery pipeline C13.

[0020] The bromine storage tank 11 is equipped with a radar level gauge 9 and a hydrostatic level gauge 7. The two level gauges, which operate on different principles, serve as backups for each other, ensuring that if one level gauge fails, the other level gauge can continue to work, thus guaranteeing the continuity and safety of production.

[0021] The connection pipeline between the liquid pump 2 and the bromine storage tank 11 is the liquid completion pipeline 8. A solenoid valve A10 is installed on the liquid completion pipeline 8 to control the liquid completion flow rate and the liquid level in the bromine storage tank.

[0022] A solenoid valve C5 is installed on the bromine water delivery pipeline B6, and a solenoid valve B4 is installed on the bromine water delivery pipeline C13.

[0023] The working process of the above-mentioned bromine quality improvement system is as follows:

[0024] After the liquid pump 2 is started and solenoid valve A10 is opened, the finished liquid in the finished liquid tank 1 is injected into the bromine storage tank 11. The finished liquid and bromine mix to form a bromine water layer. Then, diaphragm pump 12 is started and solenoid valve B4 is opened, allowing the finished liquid to circulate in the bromine storage tank 11. The hydrobromic acid in the finished liquid and the chlorine in the bromine react chemically (2Br- + Cl2 = Br-). 2 +2Cl - Chlorine gas is converted into chloride ions, which dissolve in bromine water. Then, solenoid valve B4 is closed and solenoid valve C5 is opened. Diaphragm pump 12 is used to discharge bromine water into the finished liquid tank 1. Then, the finished liquid pump 2 supplies bromine water to the distillation system 14 to extract bromine from the bromine water through distillation, thereby improving the purity and quality of bromine.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bromine quality upgrading system characterized by, The system comprises a bromine storage tank, a diaphragm pump, a finished liquid pump and a finished liquid tank, wherein the bottom of the finished liquid tank is connected with the finished liquid pump, the finished liquid pump is connected with a distillation system and the bromine storage tank respectively, one end of the diaphragm pump is connected with the bromine storage tank through a bromine water delivery pipeline A, the other end of the diaphragm pump is connected with the finished liquid tank through a bromine water delivery pipeline B, and the other end of the diaphragm pump is also connected with the bromine storage tank through a bromine water delivery pipeline C.

2. The bromine quality upgrade system of claim 1, wherein, A radar liquid level meter and a static pressure liquid level meter are arranged on the bromine storage tank.

3. The bromine quality upgrade system of claim 2, wherein, The connecting pipeline of the finished liquid pump and the bromine storage tank is a finished liquid pipeline, and an electromagnetic valve A is arranged on the finished liquid pipeline.

4. The bromine quality upgrade system of claim 3, wherein, An electromagnetic valve C is arranged on the bromine water delivery pipeline B, and an electromagnetic valve B is arranged on the bromine water delivery pipeline C.

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