Sintering environment dust removal waste gas recycling system
A waste gas recovery and environmental technology, applied in the steel industry, can solve problems such as energy waste and environmental pollution, and achieve the effect of eliminating environmental pollution and achieving zero emissions.
Inactive Publication Date: 2014-05-14
LIUZHOU IRON & STEEL
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Problems solved by technology
[0002] At present, in the domestic sintering production process, the environmental dust removal waste gas is directly discharged into the atmosphere after being collected by an electrostatic precipitator or a bag filter. This technology has the following shortcomings: 1. There are still 30~80mg / m 3 The exhaust gas with dust concentration is directly discharged to the atmosphere, causing pollution to the environment; 2. A large amount of heat is discharged into the atmosphere with the dust removal exhaust gas up to 100 ℃ after dust removal, resulting in a large amount of energy waste
Method used
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[0019] In this embodiment, a sintering machine hot air cover 9 is installed above the sintering machine 3 to cover the sintering machine 3. The lower end of the sintering machine hot air cover 9 extends downward to the side wall of the sintering machine 3. The smaller the gap, the better. The top of machine hot air cover 9 is connected with cold wind inlet pipe 11, and cold wind control valve 10 is equipped with on the top of cold wind inlet pipe 11.
[0020] A three-way valve 5 in the middle of the outer chimney 4 is installed in the upper part of the environmental dust removal chimney. The straight-through end of the three-way valve 5 is an external discharge port. The external discharge port is equipped with an exhaust gas discharge control valve 6. The end of the fork is equipped with a waste gas recovery valve 7, and the waste gas recovery valve 7 is connected with the hot air cover 9 of the sintering machine through a waste gas recovery pipe 8.
[0021] The working proce...
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The invention provides a sintering environment dust removal waste gas recycling system. The sintering environment dust removal waste gas recycling system is characterized in that a sintering machine hot air cover is arranged above and covers a sintering machine, the hot air cover is connected with a cold air inlet pipe so that air can be sent into the space formed by the inner portion of the sintering machine hot air cover and the upper portion of the sintering machine, and a waste gas recycling pipe communicated with an environment dust removal and discharge chimney is arranged on the sintering machine hot air cover so that the space formed by connecting the sintering machine hot air cover with the sintering machine can be communicated with the environment dust removal and discharge chimney. The sintering environment dust removal waste gas recycling system has the advantages that environment dust removal waste gas at the temperature of 100 DEG C is completely recycled, sintering production fuel consumption is lowered, fuel consumption is lowered by 2.1%, the phenomenon that environment dust removal waste gas at the dust concentration of 30 mg / m<3> to 80 mg / m<3> is directly discharged is eliminated, the phenomenon that a large amount of dust is discharged to the atmosphere is eliminated, and the sintering environment dust removal waste gas recycling system makes outstanding contributions to environmental protection.
Description
technical field [0001] The invention relates to the technical field of the iron and steel industry, in particular to a recycling system for dedusting waste gas in a sintering environment. Background technique [0002] At present, in the domestic sintering production process, the environmental dust removal waste gas is directly discharged into the atmosphere after being collected by an electrostatic precipitator or a bag filter. This technology has the following shortcomings: 1. There are still 30~80mg / m 3 The exhaust gas with dust concentration is directly discharged into the atmosphere, causing pollution to the environment; 2. A large amount of heat is discharged into the atmosphere with the dust removal exhaust gas up to 100 ℃ after dust removal, resulting in a large amount of energy waste. Contents of the invention [0003] The purpose of the present invention is to provide a sintering environment dust removal waste gas recovery and utilization system which scientifical...
Claims
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Inventor 王恒吴丹伟陈有升莫龙桂黄恒成刘巍卢福德刘旺盛孙火荣岑军海覃锋
Owner LIUZHOU IRON & STEEL