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Temperature adjustment system of RTO oxidizing furnace, and adjustment technology thereof

A technology of temperature regulation and oxidation furnace, applied in incinerators, combustion methods, lighting and heating equipment, etc., can solve the problems of delayed combustion of VOCs, large pipe size, easy damage, etc., and achieve the effect of ensuring normal operation

Pending Publication Date: 2017-11-21
XUZHOU KERONG ENVIRONMENTAL RESOURCES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The high-temperature bypass also has the following problems: (1) The size of the pipeline is large, which requires heat preservation and increases equipment investment; (2) The control valve needs to be resistant to high Consider heat preservation and material issues; (4) Reduce RTO heat recovery efficiency
It can solve some of the problems existing in the high temperature bypass, but there are still the following problems: (1) VOCs are delayed in combustion, causing the regenerator to overheat; (2) The temperature of the oxidation chamber drops rapidly, resulting in a decrease in processing efficiency

Method used

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  • Temperature adjustment system of RTO oxidizing furnace, and adjustment technology thereof
  • Temperature adjustment system of RTO oxidizing furnace, and adjustment technology thereof
  • Temperature adjustment system of RTO oxidizing furnace, and adjustment technology thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] like figure 1 As shown, the exhaust gas enters the regenerator A through the exhaust gas pipeline 1, and after being heated by the high-temperature regenerator, it enters the oxidation chamber 5 for combustion, and the high-temperature purified gas after combustion enters the regenerator B to heat the regenerator and cool down The final purified gas passes through the purified gas pipeline 10, and is discharged to the chimney 9 through the induced draft fan 8. Part of the flue gas passes through the purge pipeline 12 and enters the regenerator C where the waste gas is fed in the previous stage, blowing the residual waste gas into the oxidation chamber 5 for combustion. When the oxidation chamber 5 is overheated, the regulating valve 7 is opened, and the low-temperature purified gas is introduced into the oxidation chamber 5, and the temperature of the oxidation chamber 5 is lowered to the normal operating temperature.

Embodiment 2

[0031] like figure 2 As shown, the exhaust gas enters the regenerator A through the exhaust gas pipeline 1, and after being heated by the high-temperature regenerator, it enters the oxidation chamber 5 for combustion, and the high-temperature purified gas after combustion enters the regenerator B to heat the regenerator and cool down The final purified gas passes through the purified gas pipeline 11, and is discharged to the chimney 9 through the induced draft fan 10. Part of the flue gas passes through the purge pipeline 7, enters the regenerator C where the waste gas is fed in the previous stage, and blows the residual waste gas into the oxidation chamber 5 for combustion. When the oxidation chamber 5 is overheated, the regulating valve 7 is opened, and the low-temperature purified gas enters the gas mixing device 11 to mix with the exhaust gas to reduce the concentration of VOCs in the exhaust gas, thereby reducing the temperature of the oxidation chamber 5 to the normal o...

Embodiment 3

[0033] like image 3 As shown, the exhaust gas enters the regenerator A from the blower 6 through the exhaust gas pipeline 1. After being heated by the high-temperature regenerator, it enters the oxidation chamber 5 for combustion, and the high-temperature purified gas after combustion enters the regenerator B to heat the heat storage. body, the purified gas after cooling is discharged to the chimney 9 through the purified gas pipeline 10. Part of the flue gas is passed through the blowing pipeline 12 by the induced draft fan 8, and enters the regenerator C where the waste gas is fed in the previous stage, and the residual waste gas is blown into the oxidation chamber 5 for combustion. When the oxidation chamber 5 is overheated, the regulating valve 7 is opened, and part of the low-temperature purified gas enters the oxidation chamber 5 by the induced draft fan 8, and the temperature of the oxidation chamber 5 is lowered to the normal operating temperature.

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Abstract

The invention discloses a temperature adjustment system of RTO oxidizing furnace. According to the system, organic waste gas enters an RTO heat accumulation chamber through a switching valve, and enters an oxidizing chamber for combustion after being heated by a heat accumulator, the combusted high-temperature purified gas then enters the heat accumulation chamber for heating the heat accumulator, and is discharged to a chimney through a draught fan after being cooled; when the ultratemperature of an RTO oxidizing chamber exceeds the normal running temperature 85DEG C above of RTO, a circulating cooling loop is started for circularly supplementing gas so as to guarantee the normal running of the system. A part of purified gas is introduced to enter the oxidizing chamber or mix with waste gas, and after the draught fan, the flowrate of the purified gas is controlled through an adjusting valve. A part of purified gas is introduced to enter the oxidizing chamber, the temperature of the oxidizing chamber is adjusted by utilizing the low temperature of the purified gas. A part of purified gas is introduced to mix with waste gas, so that the content of VOC can be reduced, the temperature of the oxidizing chamber can be adjusted, and the normal running of the temperature of the whole RTO oxidizing furnace can be guaranteed.

Description

technical field [0001] The invention relates to an RTO temperature regulating process, which is mainly suitable for VOCs treatment in painting, printing, shoemaking, chemical production, pharmaceutical and other industries, especially the RTO treatment process of high-concentration VOCs. Background technique [0002] In recent years, large-scale smog has occurred in many regions of my country, and the problem of regional compound air pollution characterized by ozone, fine particulate matter (PM2. 5 ) and acid rain has become increasingly prominent. As important precursors of ozone and secondary organic particulate matter, volatile organic compounds (Volatile Organic Compounds, VOCs) play an extremely important role in atmospheric chemical reactions. At the same time, most VOCs are highly irritating and toxic. Such as benzene is listed as the first carcinogen, n-hexane, heptane and octane can affect the human central nervous system. VOCs mainly come from painting, printing,...

Claims

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Application Information

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IPC IPC(8): F23G7/06F23G5/50
CPCF23G5/50F23G7/068F23G2207/101
Inventor 孙昌栋任子康卢彬张红月廉旗高克迎任国宏
Owner XUZHOU KERONG ENVIRONMENTAL RESOURCES CO LTD
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