Kiln tail sealing device of rotary cement kiln

Abstract

The invention discloses a kiln tail sealing device of a rotary cement kiln. The kiln tail sealing device comprises a rotary-cement-kiln tail and spring support seat, a spring, a fixed seal ring, a rotary seal ring, a rotary-cement-kiln cylinder, a sealing-pull-wire ring, a sealing pull wire, a sealing balance weight and a balance weight support rod. The fixed seal ring is mounted on the rotary-cement-kiln tail and spring support seat. The spring is mounted between the fixed seal ring and the rotary-cement-kiln tail and spring support seat. The rotary seal ring is mounted at the bottom edge of the rotary-cement-kiln cylinder. The fixed seal ring is in relative sealing contact with the rotary seal ring. The sealing-pull-wire ring is arranged on the rotary-cement-kiln tail and spring support seat on one rotating side of the rotary-cement-kiln cylinder, and the balance weight support rod is arranged beside the rotary-cement-kiln cylinder on the same side of the sealing-pull-wire ring. The sealing pull wire is connected with the sealing-pull-wire ring and the sealing balance weight. The kiln tail sealing device is simple in overall structure, compact in assembly, good in sealing performance, safe and reliable, low in investment, long in service life and good in universality.

Description

technical field [0001] The invention relates to the technical field of cement rotary kiln, in particular to a kiln tail sealing device of cement rotary kiln. Background technique [0002] At present, when the rotary kiln equipment for calcining cement clinker is working, the shell of the rotary kiln is inclined at a certain angle, which causes the rotary kiln to easily have a slight displacement in the axial direction, resulting in the joint seal between the kiln tail and other equipment. There is a certain gap, and air leakage occurs. Therefore, the load of the exhaust fan is increased, the heat energy consumption of clinker and the production cost are increased, and at the same time, dust overflows and the production environment is polluted. The existing cement rotary kiln kiln tail sealing technology uses a cylinder sealing device. Since the temperature of the kiln tail is generally 200-300°C, the air pipes supporting the cylinder sealing device are easily aged at high te...

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Problems solved by technology

[0002] At present, when the rotary kiln equipment for calcining cement clinker is working, the shell of the rotary kiln is inclined at a certain angle, which causes the rotary kiln to easily have a slight displacement in the axial direction, resulting in the joint seal between the kiln tail and other equipment. There is a certain gap, and air leakage occurs, so the load of the exhaust fan is increased, the heat energy consumption of clinker and the production cost are increased, and at the same time, dust overflows and the production environment is polluted

The existing cement rotary kiln kiln tail sealing technology uses a cylinder sealing device. Since the temperature of the kiln tail is generally 200-300°C, the air pipes supporting the cylinder sealing device are easily aged at high temperatures, and the entire cylinder sealing device needs compressed air to provide power. The cost of construction and production and operation is high, and the cycle of replacing the air pipe takes 5-6 days, which causes great troubles to the production of the rotary kiln

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