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High-concentration sulfuric acid forced circulation heating system with fast brushing function and method of use thereof

A forced circulation and heating system technology, applied in chemical instruments and methods, sulfur compounds, inorganic chemistry, etc., can solve the problems of large production shutdown losses, sulfate scale sedimentation, and long scrubbing time, so as to improve production efficiency and reduce crystallization The effect of reducing the amount of brushing and cleaning time

Active Publication Date: 2021-07-09
HUBEI DONGFANG CHEM IND
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing scrubbing method requires a long scrubbing time, resulting in a large loss of production stoppage
In addition, long-term brushing will cause a large amount of sulfate scale to settle, which will easily lead to equipment damage

Method used

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  • High-concentration sulfuric acid forced circulation heating system with fast brushing function and method of use thereof

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Embodiment Construction

[0036] The implementation of the present invention will be described in detail below in conjunction with the examples of implementation, but they do not constitute a limitation of the present invention, and are only examples. At the same time, the advantages of the present invention will become clearer and easier to understand.

[0037] Such as figure 1 A high-concentration sulfuric acid forced circulation heating system with rapid scrubbing function of the present invention is shown, including a forced circulation pump 1, a heater 2, a flash tank 3, a heat exchanger 4, a transfer tank 5, a cooler 6, and a mixer 7. Scrubbing fluid heater 8, and sulfuric acid storage tank 9;

[0038] The forced circulation pump 1 is a high ferrosilicon forced circulation pump, the heater 2 is a glass-lined / tantalum tube heater, the flash tank 3 is a glass-lined flash tank, and the heat exchanger 4 is a glass-lined / silicon carbide heat exchanger. Tank 5 is a glass-lined transfer tank, and cool...

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Abstract

The invention discloses a high-concentration sulfuric acid forced circulation heating system with rapid scrubbing function and its application method. The system includes a forced circulation pump, a heater, a flash tank, a heat exchanger, a transfer tank, a cooler, a mixer, The scrubbing fluid heater and the sulfuric acid storage tank; the liquid outlet of the forced circulation pump is connected to the liquid inlet of the heater, the liquid outlet of the heater is connected to the liquid inlet of the flash tank, and the first outlet of the flash tank The liquid port is connected to the liquid inlet port of the forced circulation pump, the second liquid outlet port of the flash tank is connected to the liquid inlet port of the heat exchanger, the liquid outlet port of the heat exchanger is connected to the liquid inlet port of the transfer tank, and the liquid outlet port of the transfer tank is connected. The liquid outlet is connected with the liquid inlet of the cooler, and the liquid outlet of the cooler is connected with the first liquid inlet of the mixer. The scrubbing method of the present invention can greatly reduce the scrubbing time, avoid the damage to the equipment caused by the scrubbing operation, and prolong the service life of the equipment.

Description

technical field [0001] The invention relates to the technical field of concentrated sulfuric acid forced circulation heating system, in particular to a high-concentration sulfuric acid forced circulation heating system with rapid scrubbing function and its application method. Background technique [0002] Waste sulfuric acid vacuum concentration technology is currently the world's advanced waste acid treatment process technology. In the vacuum concentration process system where the concentration of finished acid is required to be more than 95%, in order to delay the final concentration of finished sulfuric acid from 90%-91% sulfuric acid to concentration For 95%-96% sulfuric acid heater fouling, common forced circulation heating system is generally used in the end stage. According to different working conditions, the fouling cycle of the 95%-96% sulfuric acid section forced circulation heating device in the domestic vacuum concentration waste acid treatment device is 8-120 d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B17/88
CPCC01B17/88
Inventor 朱学明王彬彬向雷沈鹏
Owner HUBEI DONGFANG CHEM IND
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