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一、概述随着我国煤炭工业的发展,进行煤炭资源的综合利用,不仅可以提高煤炭本身的使用价值,增加经济效益,更重要的是对社会节能、节运、环保等都将起到不可低估的作用。选煤现场自动化不单在于节省人力,而更重要的是可以对入料、介质、浓度、浮选液等进行自动控制与调节,自动控制洗精煤质、提高回收率和设备利用率,减小设备损坏率,大大降低成本,改善工人工作条件。洗选精煤的灰分、水分、发热量是评价煤质好坏的主要指标。用于现场的测灰仪是掌握煤质、进行现场配料控制必不可少的仪表。
I. Overview With the development of China’s coal industry, the comprehensive utilization of coal resources, not only can improve the value of the use of coal itself, increase economic efficiency, more importantly, social energy conservation, transportation, environmental protection will play an underestimate Role. The automation of coal preparation not only saves manpower, but more importantly, it can automatically control and adjust feed, medium, concentration, flotation liquid, etc., automatically control the quality of coal washing, improve the recovery and equipment utilization rate, reduce Equipment damage rate, greatly reduce costs, improve working conditions of workers. Coal ash washing, moisture, heat is the main indicator of the quality of coal evaluation. Ash measuring instrument for the scene is to master the quality of coal, on-site ingredients necessary to control the instrument.