A floating sealing device for pyrolysis rotary kiln

Abstract

The invention introduces a floating sealing device for a pyrolysis rotary kiln, which is arranged on the outer edge of the rotary kiln cylinder at the junction of the rotary kiln cylinder body and the fixed cover shell; including a sealing seat ring, a gland, a spiral spring system, and a packing , a number of spring steel sheets, a number of bolts, a number of screws, a number of nuts and tensioning devices; the sealing seat ring is set on the outer edge of the rotary kiln shell through the inner ring; the sealing seat ring and the end of the annular boss of the gland are outside the rotary kiln shell An annular space is formed on the outer edge of the rotary kiln; the spiral spring system connects the gland with the sealing seat; the packing is arranged in the annular space formed by the sealing seat and the gland on the outer edge of the rotary kiln cylinder; the two ends of the steel wire rope of the tensioning device pass through the perforation After bypassing the fixed pulley block setting respectively. The floating sealing device of the pyrolysis rotary kiln of the present invention has the advantages of compact structure, high matching degree and remarkable sealing effect, and can meet working condition factors such as radial runout, high temperature, positive pressure, flammable and explosive gas, etc., and has a wide application range.

Description

Technical field [0001] The present invention relates to the field of cryogenic chemical technology in low temperature heat removal gas, tar, and semi-focus in low-order pulping coal, and is specifically related to a pyrolysis-rotating kiln floating sealing device. Background technique [0002] Through low-temperature heat, low-order coal gas, tar, half-focus is a good way to clean and utilize low-order coal, solve the short-order coal water content, easy to powder, high volatile points, etc., etc. cannot be directly utilized. [0003] The pyrolysis of the rotary kiln cylinder is a horizontal barrel rotating structure. The diameter is generally 2 to 8m, and the inner portion of the cylinder is a flammable explosive alkane gas, the sealing requirements between the rotating barrel and the fixed discharge air cover body are not allowed Leak, due to the inclusion of the cylindrical itself, the bias during operation, produces the periodic radial jump of the outer circle of the cylinder...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the above problems, the purpose of the present invention is to provide a floating sealing device for pyrolysis rotary kiln, which solves the leakage problem between the fixed cover shell and the rotary kiln shell caused by the spring back of the packing of the sealing device, and can adapt to the rotary kiln shell. Radial runout, high temperature, positive pressure, flammable and explosive gas and other working conditions

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