Sealing device of wet type ball grinder head section in thermal plant

Abstract

The invention provides a sealing device of a wet type ball grinder head section in a thermal plant. The sealing device comprises sealing packing, a clamping apparatus, a radial locking device and an axial compressing device, wherein the sealing packing is fixed at the joint of the grinder head section and an inlet tube; the clamping apparatus is used for fixing and compressing the outside of the sealing packing; the radial locking device is used for locking the clamping apparatus; and the axial compressing device is used for fixing the inlet tube and compressing the clamping apparatus. According to the sealing device of the wet type ball grinder head section in the thermal plant provided by the invention, the joint face of the sealing packing and the ball grinder can be adjusted regularly, and mortar leakage at the inlet of the ball grinder is effectively prevented, so that the overhaul maintenance quantity is reduced.

Description

technical field [0001] The invention relates to the technical field of wet ball mills, in particular to a sealing device for a head of a wet ball mill in a thermal power plant. Background technique [0002] The ball mill is the key equipment for crushing the material after it is crushed. It is composed of feeding part, discharging part, rotary part, transmission part and other main parts. Ball mills are widely used in cement, silicate products, new building materials, refractory materials, chemical fertilizers, ferrous and non-ferrous metal beneficiation, and glass ceramics, etc., for dry or wet grinding of various ores and other grindable materials. [0003] At present, thermal power plants are basically equipped with flue gas desulfurization devices, and limestone mills are the most important equipment in the slurry preparation system. There are two commonly used limestone grinding schemes: dry grinding and wet grinding, with wet grinding as the main type, and horizontal...

AI Technical Summary

Problems solved by technology

Its disadvantages are: the sealing packing gland 103 rotates together with the barrel of the ball mill during operation, and cannot effectively compress the packing to achieve a good sealing effect; when the center of the inlet pipe 102 deviates from the center of the mill inlet, it will cause the inlet pipe 102 The gap with the mill inlet is not uniform, and the use of packing seals at this time will often cause leakage in places where the gap is too large

The frequent occurrence of slurry leakage defects at the entrance of the ball mill seriously affects the stable operation of the equipment, and the maintenance workload is heavy

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