Cement rotary kiln comprehensive noise reduction and heat recovery system

Abstract

The invention discloses a comprehensive noise reduction and heat recovery system for a cement rotary kiln. The comprehensive noise reduction and heat recovery system comprises a rotary kiln platform arranged at the bottom of the rotary kiln, a cooling coil arranged at the top of the rotary kiln, air pipe air supply units arranged at the two ends of the rotary kiln platform, fans arranged at the input ends of the air pipe air supply units and noise elimination mechanisms arranged on the fans. A fan shock absorber is arranged below the fan; the draught fan is covered with a draught fan sound insulation cover. The silencing mechanism comprises a fan inlet silencer and a fan outlet silencer, and fan noise is jointly reduced through the fan inlet silencer, the fan outlet silencer, a fan sound insulation cover and a fan shock absorber; cooling air from the air pipe air supply unit is changed into hot air after cooling the rotary kiln, the cooling coil recovers heat from the hot air and heat radiation of the rotary kiln, then the rotary kiln body is cooled and waste heat is recovered in the rotary kiln production process of the cement plant, noise reduction and heat recovery are comprehensively considered, the noise reduction effect is guaranteed, heat recovery is increased, and the production efficiency is improved. And carbon emission and thermal pollution are reduced.

Description

technical field [0001] The invention belongs to the technical field of noise reduction and heat recovery of a cement rotary kiln, and more specifically relates to a comprehensive noise reduction and heat recovery system of a cement rotary kiln. Background technique [0002] Rotary kiln cement is a method of cement production and a new technology for producing cement. The cement produced by this technology has good quality and stable performance, and can also reduce environmental pollution; the original cement production is in vertical kilns, and this technology produces The quality of cement is poor, the performance is unstable, and the environmental pollution is serious. It has been eliminated. The country has not allowed the production of cement with this technology. Now large cement factories basically use the rotary kiln cement process to replace the traditional shaft kiln cement. [0003] However, during the operation of the rotary kiln, a large amount of stable heat is...

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Problems solved by technology

In addition, as a heat recovery pipe, the cooling coil is equivalent to forming a sound barrier, which can change the direction of noise radiation, and then reduce noise from the transmission path; the heat recovery of the present invention reduces carbon emissions, which can save a lot of carbon emission indicators, and is beneficial It is beneficial to reduce the cost and increase the efficiency of the cement plant; it can solve the problems of a large amount of noise pollution, heat pollution and serious energy waste in the production process of the existing rotary kiln cement

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