Lump coal diameter screening device

Abstract

The invention discloses a lump coal diameter screening device, and belongs to the field of lump coal lower limiting devices. The lump coal diameter screening device performs screening before vehicle loading, effectively limits excessive lower limit of lump coals, improves the quality of the lump coals, reduces the quality disputation, improves the economical benefit, and reduces the loss. The lumpcoal diameter screening device comprises a small lump coal storage bin and a medium lump coal storage bin; a vehicle loading belt machine is arranged between the small lump coal storage bin and the medium lump coal storage bin; a belt conveyor is arranged through the small lump coal storage bin and the medium lump coal storage bin; a vibration screen is arranged at the middle part of the medium lump coal storage bin; an inlet of the vibration screen is connected with the belt conveyor through a transfer mechanism; a coal chute is formed under the vibration screen; and an outlet above the vibration screen is contacted with the vehicle loading belt machine. The lump coal diameter screening device can be widely applied to the field of lump coal lower limiting.

Description

technical field [0001] The lump coal diameter screening device of the present invention belongs to the technical field of lump coal under-limiting devices. Background technique [0002] At present, coal lump coal products that meet the quality requirements and large particle sizes of some materials have a stable user market and have high economic value. The secondary crushing phenomenon leads to a decrease in the yield of lump coal, and an increase in the content of the upper and lower limits of lump coal products, which seriously affects the quality of lump coal products, is not conducive to the sale of lump coal products, and loses economic benefits, especially before the sale of lump coal products. There are no effective measures to ensure product quality in the storage and loading links of the company, and they cannot meet customer needs. They can only rely on a certain compensation standard for the difference under the limit to compensate customers, resulting in economi...

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Problems solved by technology

[0002] At present, coal lump coal products that meet the quality requirements and large particle sizes of some materials have a stable user market and have high economic value. The secondary crushing phenomenon leads to a decrease in the yield of lump coal, and an increase in the content of the upper and lower limits of lump coal products, which seriously affects the quality of lump coal products, is not conducive to the sale of lump coal products, and loses economic benefits, especially before the sale of lump coal products. There are no effective measures to ensure product quality in the storage and loading links of the company, and it cannot meet customer needs. It can only rely on a certain compensation standard for the difference under the limit to compensate customers, resulting in economic losses and increasing manufacturing costs.

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