Kiln tail sealing device of cement rotary kiln

Abstract

The invention provides a kiln tail sealing device of a cement rotary kiln. The kiln tail sealing device comprises four locating shafts, a stationary sealing ring, an oil hole, a spacer ring and an oilchamber; the circumferential inner wall of a support lantern ring is provided with six rollers in a ring array in manner of supporting, and the six rollers abut against the circumferential outer wallof the rotary kiln in manner of rolling; the rotary kiln penetrates through the support lantern ring, a ring stand and a head-end bushing in sequence and is inserted into a butting sunk groove in thefront end of an abutting tube sleeve, the end face of the tail end of the rotary kiln is provided with a rotating sealing ring, and the rotating sealing ring and the stationary sealing ring rotatablyare abutted together; the four locating shafts are welded to the end face of the rear end of the abutting tube sleeve in a ring array in manner of supporting; and a round baffle is welded and fixed to the tail end of each of the four locating shafts. According to the kiln tail sealing device provided by the invention, pressing plates are arranged in manner of rotatable connection, and are capableof conveniently performing rotatable compressing and revolving loosening on flexible graphite sealing blocks, so that flexible graphite sealing blocks seriously worn can be flexibly and easily drawnand taken out for replacement.

Description

Technical field [0001] The invention belongs to the technical field of rotary kiln sealing devices, and more specifically, relates to a kiln tail sealing device of cement rotary kilns. Background technique [0002] At present, when the rotary kiln equipment for calcination of cement clinker is working, the rotary kiln barrel is inclined at a certain angle, which causes the rotary kiln to easily have a slight displacement in the axial direction, causing the rotary kiln tail and other equipment to be connected and sealed. Air leakage occurs in a certain gap, therefore, the load of the exhaust fan is increased, the thermal energy consumption of the clinker and the production cost are increased, and at the same time, dust overflows and pollutes the production environment. [0003] After searching, for example, the patent No. 201420530746.9 discloses a rotary kiln tail sealing device. The sealing device includes arc-shaped graphite sealing blocks fixedly sleeved on the kiln tail. The ar...

AI Technical Summary

Problems solved by technology

[0007] In order to solve the above technical problems, the present invention provides a kiln tail sealing device of cement rotary kiln to solve the unreasonable design of the sealing structure of the existing kiln tail sealing device. Sealing, resulting in poor sealing effect, and most of the seals are sealed by means of scale screws to compress the flexible medium. After the flexible medium is severely worn, it is not easy to be taken out and replaced.

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