Pneumatic conveying system for coal ash

Abstract

The invention relates to a pneumatic conveying system for coal ash. The pneumatic conveying system comprises a Roots blower 1, an airflow pipe 2, a high-speed sealing belt conveyer 3, a pneumatic feeding valve 4, a manual gate valve 5, a coal ash hopper 6, a Venturi jetting device 7, a coal ash and airflow conveying pipe 8, a pneumatic line-changing valve 9, a hopper 10, a centrifugal induced draft fan 11, an impulse type back blowing bag type hopper dust collector 12, a vibratory pneumatic hammer 13, an activating hopper 14, a pneumatic discharging valve 15 and an electrical control system 16, and is characterized in that by the high-speed sealing belt conveyer 3 and the Venturi jetting device 7, coal ash enters carrying airflow so that the coal ash can be conveyed continuously and stably. By the pneumatic conveying system, a large amount of coal ash can be conveyed pneumatically and continuously within a short conveying distance from a place to a plurality of places. The pneumatic conveying system for the coal ash has the advantages that the repair cost is low and the repair workload is small; and by the Venturi jetting device, a large amount of coal ash can be conveyed within a short time.

Description

technical field [0001] The invention relates to a pneumatic conveying system of fly ash, which is suitable for continuous conveying of fly ash, large conveying capacity and short distance conveying, and can convey from one point to multiple points, and belongs to the technical field of pneumatic conveying. Background technique [0002] At present, high-speed screw conveyors are mostly used for domestic fly ash transportation. The disadvantage is that coal ash is very similar to sand, and coal ash itself is a material with strong friction. Therefore, in actual production, the wear of the blade and the cylinder is relatively large, and the amount of maintenance and the maintenance cost are relatively high. Contents of the invention [0003] The purpose of the present invention is to improve the deficiencies of the prior art, and provide a pneumatic conveying system of fly ash with little wear, low maintenance amount and maintenance cost. The purpose of the present invention...

AI Technical Summary

Problems solved by technology

[0002] At present, high-speed screw conveyors are mostly used for domestic fly ash transportation. The disadvantages are: coal ash is very similar to sand, and coal ash itself is a material with strong friction.

Therefore, in actual production, the wear of the blade and the cylinder is relatively large, and the maintenance amount and maintenance cost are relatively high.

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