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Off-gas ozone treatment method and device

A treatment method, ozone tail gas technology, applied in separation methods, chemical instruments and methods, air quality improvement, etc., can solve problems such as tail gas damage, and achieve high safety and reliability

Active Publication Date: 2013-09-04
BEIJING CYCLE COLUMBUS ENVIRONMENTAL SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the safety problem of ozone tail gas treatment, the present invention develops a tail gas destruction method and device based on direct steam heating

Method used

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  • Off-gas ozone treatment method and device

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Experimental program
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Effect test

Embodiment 1

[0040] A treatment device for ozone tail gas, the device is divided into an ozone destruction part and a tail gas cooling part; the tail gas cooling part is composed of a tube-and-tube heat exchanger 1, and the exhaust gas after being cooled by raw material tail gas is finally cooled. After the destruction, the tail gas is connected to the emptying pipe 2 and discharged; in the shell-and-tube heat exchanger 1, the destroyed tail gas goes to the shell side 3, the raw material tail gas goes to the tube side 4, and a liquid level gauge 5 is installed at the bottom to measure the cooling and condensation of the shell side tail gas The water level is high, and it is interlocked with the bottom drain valve 6 to maintain the bottom liquid level of the shell side of the heat exchanger.

[0041]The ozone destruction part includes a steam heating inner cylinder 7, an electric heating outer cylinder 8, a safety top cover 9 and an exhaust valve 10; the steam heating inner cylinder 7 includ...

Embodiment 2

[0043] A treatment device for ozone tail gas, the device is divided into an ozone destruction part and a tail gas cooling part; the tail gas cooling part is composed of a tube-and-tube heat exchanger 1, and the exhaust gas after being cooled by raw material tail gas is finally cooled. After the destruction, the tail gas is connected to the emptying pipe 2 and discharged; in the shell-and-tube heat exchanger 1, the destroyed tail gas goes to the shell side 3, the raw material tail gas goes to the tube side 4, and a liquid level gauge 5 is installed at the bottom to measure the cooling and condensation of the shell side tail gas The water level is high, and it is interlocked with the bottom drain valve 6 to maintain the bottom liquid level of the heat exchanger shell side.

[0044] The ozone destruction part includes a steam heating inner cylinder 7, an electric heating outer cylinder 8, a safety top cover 9 and an exhaust valve 10; the steam heating inner cylinder 7 includes a s...

Embodiment 3

[0046] A treatment device for ozone tail gas, the device is divided into an ozone destruction part and a tail gas cooling part; the tail gas cooling part is composed of a tube-and-tube heat exchanger 1, and the exhaust gas after being cooled by raw material tail gas is finally cooled. After the destruction, the tail gas is connected to the emptying pipe 2 and discharged; in the shell-and-tube heat exchanger 1, the destroyed tail gas goes to the shell side 3, the raw material tail gas goes to the tube side 4, and a liquid level gauge 5 is installed at the bottom to measure the cooling and condensation of the shell side tail gas The water level is high, and it is interlocked with the bottom drain valve 6 to maintain the bottom liquid level of the heat exchanger shell side.

[0047] The ozone destruction part includes a steam heating inner cylinder 7, an electric heating outer cylinder 8, a safety top cover 9 and an exhaust valve 10; the steam heating inner cylinder 7 includes a s...

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Abstract

The invention relates to an off-gas ozone treatment method and device, and belongs to the field of wastewater treatment. According to the treatment method, vapor is used to directly heat off-gas ozone to decompose ozone in off-gas. The treatment device comprises an ozone destructor, wherein the ozone destructor comprises a vapor heating inner cylinder; a vapor inlet and an off-gas inlet are formed in the bottom of the vapor heating inner cylinder; and a destruction off-gas outlet is formed in the top of the inner cylinder. According to the invention, the vapor is used to directly heat and destruct the ozone, and further utilizes an outlet valve and a safety top cover to improve the safety. Compared with a current off-gas destruction method, an induced draft fan is omitted, and the off-gas can not be in contact with rotating mechanical parts and electrical appliances, so that explosive requirements can not be met, and safety and reliability are realized; and the device is simple in operation, and is free from maintenance.

Description

technical field [0001] The invention relates to the technical field of ozone oxidation treatment for wastewater treatment, in particular to a treatment method and device for ozone tail gas. The invention is especially suitable for harmless treatment of ozone tail gas from oxygen source. Background technique [0002] Ozone has a strong oxidation ability, its oxidation-reduction potential in water is 2.07eV, and it is used to treat wastewater. Ozone can effectively remove many organic and inorganic pollutants in water, reduce BOD and COD of water, and have significant effects on decolorization, deodorization and sterilization. In recent years, the application of ozone oxidation technology in the field of wastewater has become increasingly widespread. Because it is difficult for ozone to completely absorb and react, the tail gas after treatment still contains a certain concentration of ozone. If it is directly discharged into the atmosphere, it will cause atmospheric environ...

Claims

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Application Information

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IPC IPC(8): B01D53/76B01D53/66B01D53/74
CPCY02A50/20
Inventor 李玉平李海波刘晨明刘永胜林琳
Owner BEIJING CYCLE COLUMBUS ENVIRONMENTAL SCI & TECH
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