U-shaped internal-combustion rotating limekiln capable of recovering CO2

Abstract

The invention belongs to the field of kiln, and provides a u-shaped internal-combustion rotating limekiln capable of recovering CO2. The limekiln is characterized in that the rotary kiln is horizontal, a u-shaped muffle heating furnace and a u-shaped calcining chamber are adjacently arranged inside the rotary kiln, blades are arranged on the inner wall of the muffle heating furnace and the inner wall of the calcining chamber, and a carbon dioxide collector is arranged through a limestone feeding inlet to communicate with the calcining chamber. Compared with present muffle rotary limekilns, the u-shaped internal-combustion rotating limekiln capable of recovering CO2 has significant advantages of reasonable structure, energy conservation, and emission reduction, and can recover and utilize materials and improve product quality.

Description

technical field [0001] The invention belongs to the technical field of kilns, and relates to a rotary lime kiln with partitions, in particular to a kiln capable of recovering CO 2 U-shaped internal combustion rotary lime kiln. Background technique [0002] The existing flame-trap rotary lime kiln includes a rotary kiln body and a transmission mechanism. The rotary kiln body is inclined. The limestone material falls into the calcination chamber through the high-end feed port of the rotary kiln body, and is heated by the coal furnace at one end of the kiln body. , The lime is directly discharged from the low-end outlet, and the lime is discharged with heat, and a large amount of carbon dioxide is also discharged into the air. There are defects that the waste heat cannot be used, and energy and resources are wasted. Contents of the invention [0003] The inventor has been engaged in the practice of lime firing for many years, and found that the existing flame-trap rotary lim...

AI Technical Summary

Problems solved by technology

[0002] The existing flame-insulated rotary lime kiln includes a rotary kiln body and a transmission mechanism. The rotary kiln body is inclined. The limestone falls into the calcination chamber through the high-end feeding port of the rotary kiln body, and is heated by the coal furnace at one end of the kiln body. , the lime is directly discharged from the low-end outlet, and the lime is discharged with heat, and a large amount of carbon dioxide is also discharged into the air. There are defects that the waste heat cannot be used, and energy and resources are wasted.

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