Special sealing device for cylinder body of high-temperature rotary kiln

Abstract

The invention discloses a special sealing device for a cylinder body of a high-temperature rotary kiln. The special sealing device comprises a first gland fixedly connected with a discharging box, a second gland connected with one end of the first gland far away from the discharging box, and sealing fillers, wherein the sealing fillers are filled in a sealed space between the inner wall of the first gland and the cylinder body of the rotary kiln and are clamped by the first gland and the second gland; one end of the first gland close to the second gland is provided with a first flange extending outwards; one end of the first gland close to the discharging box is provided with a first protrusion part extending inwards; the second gland is provided with a second flange extending outwards and a second protrusion part extending to the sealed space; and the first flange and the second flange are connected through a filler clamping mechanism, and when the filler clamping mechanism is screwed down, the second gland can move axially along the surface of the cylinder body of the rotary kiln. The special sealing device disclosed by the invention has the advantages of being good in sealing effect, reducing the temperature on a sealed surface, and prolonging the replacement cycle of the fillers, and the sealing fillers are easy to maintain.

Description

technical field [0001] The invention relates to a sealing device, in particular to a special sealing device for high-temperature rotary kiln cylinders used in industries such as chemical industry, petrochemical industry, non-ferrous metals, and metallurgy. Background technique [0002] The high-temperature rotary kiln with operating temperature in the range of 400℃~650℃ is a kind of equipment widely used in chemical industry, petrochemical, non-ferrous metal, metallurgy and other industries. According to the operation mode, it can be continuous or intermittent, and can also be used for vacuum operation. Or operate under pressure. In order to realize vacuum operation or pressure operation of high temperature rotary kiln, the performance of its sealing device is the key factor to determine the vacuum degree (or pressure holding) of the equipment. The existing high-temperature rotary kiln is mainly composed of a feeding system, a transmission system, a cylinder body, a cylinde...

AI Technical Summary

Problems solved by technology

Most of the seals between the inlet and outlet systems and the cylinder are packing seals or packing seals plus labyrinth seals. This structure can ensure that the high-temperature rotary kiln has a certain vacuum degree or pressure-holding requirement, but the vacuum degree or pressure-holding is not high. Affect the quality of the product, secondly, the filler is easy to wear at high temperature, the reliability of the cylinder seal is reduced, the air in the external environment will enter the cylinder or the gas in the cylinder will leak to the external environment, so the working conditions that require high sealing performance Can not meet production requirements

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