Structure and working principle of silo pump in ash conveying system of thermal power plant

Asian Pump News] Barrel pneumatic conveying pump adopts positive pressure pneumatic conveying to convey powdery material, which is widely used in conveying power plant fly ash, cement, cement raw material, mineral powder and other materials. Xiao Bian to introduce the thermal power plant ash conveying system warehouse pump structure and working principle. Bunker pump First, thermal power plant ash conveying system Bunker pump structure In the warehouse pump ash control a large number of interlocking and locking. Such as: ① in the warehouse pump pressure is still more than the case can only open the valve depressurization and prohibit open into the material valve, feed and deflate valve is not fully closed when the inlet valve is not forbidden to prevent the ash ; ② When the gray tube pressure is higher than the allowable value, it will open and close the discharge valve and the inlet valve to prevent the gray tube from clogging or plugging. The larger the air tube pressure is, Pipe; ④ In the intake valve is not fully closed, the valve is closed and open the valve and the intake valve; ⑤ When the bunker pump height of the ash has reached a predetermined location, the same side of the other warehouse pump no longer discharge material state When the pressure of the air tube has reached the specified value, the chain opens the discharge gauge into the air valve for discharge; when the pressure of the air tube drops to the specified value, the chain closes the inlet air and the discharge valve to stop discharging; and in addition, Valve fault detection system, when a valve from the fully closed position to the fully open position or from the fully open position to the fully closed position of the action time exceeds a certain time value, then sound alarm signal to remind operators that the valve has been card should be Proceed immediately. Second, the power plant ash conveying system Warehouse pump working principle 1, the exhaust valve is open, the excess air pump chamber discharge, in order to feed. 2, close the exhaust valve, the feed valve is opened to feed, when the feed is full, turn it off. 3, open the intake valve into the pump into the pump compressed air, when the warehouse pump pressure reaches a certain level, open the discharge valve began to lose ash; the same time open the auxiliary valve to assist the air supply to prevent the occurrence of compressed air in the process of ash Pressure is too low and cause ash plugging in the pipeline. 4, when the ash is completed, close the discharge valve, auxiliary intake valve, and then repeat the first step. Further Reading: pump valve pipe fittings Exhibition Water Expo Xiamen exhibition of marine equipment Internet + Forum Yiwu Fair 2016 exhibition mold top ten brands of the Internet information industry (Xiamen) Technology Co., Ltd. Author: Asian pumps Network Editor: Yao Xiaoxia (QQ / WeChat:) http://beng.liuti.cn/ (Service Hotline:)