A sealing device for preventing air leakage at the kiln tail of a rotary kiln

Abstract

The invention relates to the technical field of machining equipment, in particular to a sealing technology for preventing air leakage at a kiln tail of a rotary kiln. The rotary kiln comprises a kilncylinder body; one end part of the kiln cylinder body is provided with an opening; the opening of the kiln cylinder body is connected with a flue gas chamber; an external housing is installed at the outer walls of the kiln cylinder body and the flue gas chamber; a material retaining plate is arranged at one side of an air spraying and blowing chamber; a first spraying and blowing pipe is installedat one side, far away from the material retaining plate, of the air spraying and blowing chamber; a first friction ring is installed at one side part of a sealed bin; an adjusting bolt is installed at the bottom of the first friction ring; a stainless steel flap is movably installed on the first friction ring and is connected with the outer wall of the sealed bin; and the first friction ring is movably connected with the top of the kiln cylinder body through the adjusting bolt. The sealing technology provided by the invention solves the influences of air leakage and material leakage on environment, can effectively reduce production power consumption and coal consumption and can prolong the replacement period of a friction part; the replacement period of the friction part is prolonged to 3years or longer if a discharging system at the kiln tail is free of damages, and a process for manually clearing accumulated dust is not needed, so the labor intensity of a worker is alleviated, andpotential safety hazards are eliminated.

Description

technical field [0001] The invention relates to the technical field of processing equipment, in particular to a sealing device for preventing air leakage at the kiln tail of a rotary kiln. Background technique [0002] The existing sealing device for the kiln tail of the rotary kiln has friction parts and friction rings that are subject to greater wear and tear, short service life, poor sealing effect, and air leakage and material leakage, resulting in high power consumption and coal consumption of the kiln system, and causing environmental damage. Workers are likely to cause safety accidents in the process of cleaning up the dust. Most of the kiln tail seals of dry process kilns adopt high temperature resistant flexible seals. Since the seal position is in the high temperature section of the kiln tail, the temperature is high and the friction plate and friction sleeve There is a large force between them, and a large radial force is applied through the steel wire rope and th...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a sealing device for preventing air leakage at the kiln tail of a rotary kiln, so as to solve the problem of rising power consumption and coal consumption of the kiln system and affecting the environment in the above-mentioned background technology

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