Coal blending weighing screening and breaking system in gas film coal storage yard

Abstract

The invention discloses a coal blending weighing screening breaking system in a gas film coal storage yard. The system comprises a gas film yard system surrounding the coal storage yard and a coal blending weighing screening and breaking system body mounted in the gas film yard system, the coal blending weighing screening breaking system body comprises two weighing coal feeders and a screening andbreaking integrated machine, the weighing coal feeders and the screening and breaking integrated machine are connected through a belt transport machine, a coal blocking wall, a gas film, a monitoringunit, an air blowing system, an atomizing dust suppression device and an automatic control system are mounted in the gas film yard system, coal blending is achieved in the gas film yard system, mixedcoal is subjected to screening and breaking integration, dust and equipment investment are reduced, compositions and mounting positions of the monitoring unit, the air blowing system and the atomizing dust suppression device are optimized in the gas film yard system, coal yard full-closed environment-friendly technical needs can be met, dust conditions in the coal yard can be subjected to real-time and automatic monitoring, and the coal dust zero emissions can be achieved.

Description

Technical field [0001] The invention belongs to the technical field of thermal power plants and coal chemical industry, and is specifically a coal blending weighing, screening and crushing system in a gas film coal storage yard. Background technique [0002] In the prior art, in order to suppress coal dust in a coal storage yard, a windshield and dust suppression net structure is usually adopted. The incoming coal is usually unloaded by vehicles. The coal dust is particularly large when unloading coal by vehicles and during operation of the coal yard. The use of wind-shield and dust-suppression nets has the following problems: on the one hand, coal yard dust affects air quality and is difficult to control. In addition, with the gradual improvement of national environmental protection standards, environmental protection departments have become more and more strict in inspections. Wind-shield and dust-suppression nets can no longer meet the new requirements. Environmental protectio...

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Problems solved by technology

[0004] The purpose of the present invention is to address the above-mentioned problems, to provide a coal blending weighing, screening and crushing system in the gas film coal stockyard, which can effectively control the environment inside and outside the gas film, and solve the problem of coal blending in the gas film coal stockpile. To solve the problem of large coal dust, realize the real zero emission of gas film coal storage yard

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