Rotary kiln device

Abstract

The invention discloses a rotary kiln device which comprises a barrel and a cover head, the end of the barrel is covered with the cover head, the barrel can rotate around a center shaft, the cover head is fixedly arranged, the barrel is communicated with the cover head, and the rotary kiln device further comprises a sealing assembly fixedly connected to the end of the cover head; the coaming assembly is fixedly connected to the cylinder body, and the coaming assembly extends outwards in the radial direction from the outer wall face of the cylinder body; the sealing assembly clamps the coaming assembly from the two sides of the coaming assembly and is used for blocking the barrel and the cover head so as to prevent gas in the barrel from overflowing outwards. By means of a self-closed structure formed by the N-shaped coaming assembly and the U-shaped sealing assembly, it is guaranteed that a rotating mechanism part and a static mechanism part at the sealing position are integrally and relatively fixed under the axial and radial expansion or movement condition, only relative rotation exists, and therefore the leakage problem caused by sealing movement of a traditional rotary kiln is avoided, and the sealing performance of the rotary kiln is improved. And the system sealing performance is greatly improved.

Description

technical field [0001] The invention relates to the field of organic solid waste resource treatment, in particular to a rotary kiln device. Background technique [0002] Organic solid waste is usually treated by thermochemical conversion technologies such as pyrolysis and gasification. Thermochemical treatments such as pyrolysis and gasification are usually carried out in rotary operating reactors. However, in the process of pyrolysis and gasification of organic solid waste, a large amount of combustible gas, carbon monoxide, nitrogen oxides, Sulfide and other toxic gases, so a sealing device is required to seal the rotary operating reactor to avoid the leakage of toxic gases. [0003] In the prior art, the axial sealing method of pressing the sealing material on the outer ring of the reactor to form the sealing ring is usually adopted, but the axial sealing will be affected by gravity and cause the problem of tightness and loosening of the sealing ring, which will lead to ...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the axial sealing method of pressing the sealing material on the outer ring of the reactor to form a sealing ring is usually adopted, but the axial sealing will be subject to the action of gravity, which will lead to the problem of tightness of the sealing ring and loosening of the sealing ring, which will cause toxic gas Leakage

[0004] At the same time, due to the large size of the rotary kiln, leakage is likely to occur during the process of processing and the rotation process after thermal expansion and deformation. Therefore, traditional scale seals, labyrinth seals or packing seals are difficult to guarantee the pyrolysis reaction. High performance sealing requirements required

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