Coal grinding steel ball screening device

Abstract

The invention discloses a screening device for coal grinding steel balls. Firstly, the steel balls to be screened are poured from the arc-shaped guide plate provided by the material receiving structure, and the steel balls are guided by the arc-shaped guide plates of several slide rails provided by the filtering structure. Firstly, the steel ball rolls up for a short distance, and then rolls down due to the effect of gravity, which reduces the speed of the steel ball. The steel balls smaller than the gap between the slide rails are screened out, and the rolling speed of the steel balls is reduced at the same time to prevent them from jumping on the slide rails and falling out of the screening assembly. Most of the steel balls and impurities smaller than the slide rail gap have been filtered out, and a small part of the steel balls that have not been filtered out will continue to be filtered out when rolling in the linear guide section, so as to realize the automatic screening of steel balls and the screening process is stable Moreover, the screening results are sufficient, manpower is saved, labor intensity is reduced, and screening efficiency is improved.

Description

technical field [0001] The invention generally relates to auxiliary equipment for coal mills, in particular to a coal grinding steel ball screening device. Background technique [0002] The traditional steel ball coal mill screening method is to open the mill inlet door after the coal mill is out of service, unload the steel balls, and then use a forklift or a small loader to transfer to the screening site for manual screening. Currently, steel balls of different diameters are mixed in a pile, and steel balls with suitable diameters need to be found in the pile of steel balls for use. This screening process results in high labor intensity for construction workers, harsh working environment, and takes up a lot of manpower and labor. Mechanical resources, and labor efficiency is low, and it is easy to cause dust pollution in the construction area, endangering the health of workers. Contents of the invention [0003] In view of the above-mentioned defects or deficiencies in ...

AI Technical Summary

Problems solved by technology

Currently, steel balls of different diameters are mixed in a pile, and steel balls with suitable diameters need to be found in the pile of steel balls for use. This screening process results in high labor intensity for construction workers, harsh working environment, and takes up a lot of manpower and labor. Mechanical resources, and labor efficiency is low, and it is easy to cause dust pollution in the construction area, endangering the health of workers

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