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一、引言粉煤锅炉的输煤系统一般为:原煤输送→粉煤制备系统→粉煤输送系统→中间料仓→粉煤输送系统→锅炉炉膛。由制粉系统至中间料仓的输送方法可分机械式(如埋刮板输送机)和气力式(如仓泵输送)两种。使用气力输送方法—仓泵输送的优点是:流程简单,操作方便,维修工作量少,单位输送能力大。仓泵可分为单仓泵和双仓泵。目前国内单仓泵一般采用气动控制系统,双仓泵一般
I. INTRODUCTION Pulverized coal boiler coal conveying system is generally as follows: raw coal conveying → pulverized coal preparation system → pulverized coal conveying system → intermediate silo → pulverized coal conveying system → boiler furnace. From the milling system to the intermediate silo delivery methods can be divided into mechanical (such as buried scraper conveyor) and pneumatic (such as warehouse pump delivery) two. The use of pneumatic conveying method - warehouse pump delivery advantages are: a simple process, easy operation, less maintenance work, the unit delivery capacity. Warehouse pump can be divided into a single warehouse pump and double warehouse pump. At present, the single-chamber pump in general use pneumatic control system, double warehouse pump in general