Electric adjusting air screen device

Abstract

The invention discloses an electric adjusting air screen device which comprises a box body, a feeding port, a positive pressure air inlet and a negative pressure dust suction port are formed in the upper portion of the box body, and a coarse material outlet and a fine material outlet are formed in the bottom of the box body. In the box body, an air inlet adjusting device, a flow guide grading device and a grid grading device are sequentially arranged between the positive pressure air inlet and the negative pressure dust suction opening. The device is simple in structure, low in production cost and use cost, high in operation convenience, capable of achieving screening and grading adjustment of different grades, good in control flexibility, high in screening precision, suitable for efficient screening and grading of various materials through air flow screening and impact dispersion, and particularly capable of enabling the materials with the high water content and serious powder coating to be separated from each other after being impacted and dispersed. And the screen is not prone to being blocked, the production efficiency is high, and the processing capacity is high.

Description

technical field [0001] The invention relates to an electric adjustable wind screen device, which belongs to the technical field of screening equipment for mining machinery. Background technique [0002] With the continuous development of society, the market has higher and higher requirements for the quality of concrete. Sand and gravel aggregate is one of the important raw materials for concrete. Under special conditions, the requirements for the powder content of finished sand are getting lower and lower. Coating requirements are also getting higher and higher. [0003] The sand and gravel aggregate production system is affected by the project, and most of them are built in the wilderness. The water content of the aggregate is greatly affected by the weather. In the case of high water content, the powder coating of the aggregate is particularly serious, resulting in a decrease in the quality of the aggregate, and it is easy to cause vibration The screen mesh of the screeni...

AI Technical Summary

Problems solved by technology

[0003] The sand and gravel aggregate production system is affected by the project, and most of them are built in the wilderness. The water content of the aggregate is greatly affected by the weather. In the case of high water content, the powder coating of the aggregate is particularly serious, resulting in a decrease in the quality of the aggregate, and it is easy to cause vibration The screen mesh of the screening equipment is blocked, which reduces the processing capacity of the system; the processing capacity of the screening equipment is greatly affected by the proportion of fine materials, the more fine materials per unit area, the lower the screening rate of fine materials; As a result, the overall processing capacity of the system cannot reach the best state; and if the vibrating screening equipment is added, the requirements for the steel structure are higher, and a large amount of material needs to be consumed to solve the vibration and resonance problems

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