Screw blade type center heating cement curing rotary kiln

Abstract

The invention discloses a screw blade type center heating cement curing rotary kiln. The screw blade type center heating cement curing rotary kiln comprises a curing rotary kiln barrel, a gas combustion heating barrel arranged in the curing rotary kiln barrel and a calcination conveying screw blade arranged between the curing rotary kiln barrel and the gas combustion heating barrel. The gas combustion heating barrel and the curing rotary kiln barrel are arranged coaxially. The outer diameter of the calcination conveying screw blade is equal to the inner diameter of the curing rotary kiln barrel, and the inner diameter of the calcination conveying screw blade is equal to the outer diameter of the gas combustion heating barrel. The calcination conveying screw blade is fixedly arranged on the inner side wall of the curing rotary kiln barrel. According to the screw blade type center heating cement curing rotary kiln, when cement mixed raw materials are heated and calcined, no solid waste residues are generated, the cement raw materials can be heated uniformly, and therefore energy consumption of the cement curing rotary kiln is reduced.

Description

technical field [0001] The invention relates to the technical field of cement production process equipment, in particular to a spiral blade type central heating cement curing rotary kiln. Background technique [0002] In the cement production process, it is first necessary to mix cement raw materials according to the process ratio, and then put the cement raw materials into the cement rotary kiln, and calcinate the cement mixed raw materials to make cement clinker; It is one of the core equipment, and the cement curing rotary kiln is also the process with the highest energy consumption in the cement production process. The cement rotary kiln in the prior art mainly provides heat through the combustion of pulverized coal, which will produce solid waste residue, and the cement rotary kiln needs to be regularly cleaned of cinder, thereby increasing the workload of using the cement rotary kiln; in addition, the existing The cement mixed raw meal in the cement rotary kiln in the...

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Problems solved by technology

The cement rotary kiln in the prior art mainly provides heat through the combustion of pulverized coal, which will produce solid waste residue, and the cement rotary kiln needs to be regularly cleaned of cinder, thereby increasing the workload of using the cement rotary kiln; in addition, the existing The cement mixed raw meal in the cement rotary kiln in the technology is prone to agglomeration and adhesion during the calcination process, so that the cement calcination process is oversaturated with heat, thus increasing the calorie consumption of the cement raw meal and making it The uneven heating of cement raw meal increases the energy consumption of cement curing rotary kiln

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