一、仓泵输灰过程

　　1、 Ash conveying process of silo pump

　　仓泵能承受一定压力与温度的压力容器，其上端为为气动进料阀，内部为一上引式管道，与气动出料阀及输灰管道相连，上引管下端为流化盘。气动进料阀，气动出料阀，进气阀，二次气阀均有电磁气动换向阀控制。仓泵采用间歇式自动控制方式运行。每个输送过程可分为四个阶段，有感应信号及程序控制。

　　The warehouse pump is a pressure vessel that can withstand a certain pressure and temperature. Its upper end is a pneumatic feed valve, and the interior is an upward pipeline connected to the pneumatic discharge valve and ash conveying pipeline. The lower end of the upward pipeline is a fluidized disc. Pneumatic feed valve, pneumatic discharge valve, intake valve, and secondary air valve are all controlled by electromagnetic pneumatic directional valves. The warehouse pump operates in an intermittent automatic control mode. Each conveying process can be divided into four stages, with induction signals and program control.

　　1、进料阶段进料阀开启，进气阀和出料阀在关闭状态。

　　1. The feed valve is open during the feeding stage, while the inlet and outlet valves are closed.

　　仓泵内部与电除尘灰斗联通，飞灰进入仓泵，当仓泵内灰位高至于料位计探头接触，则料位计产生一料位满信号，并通过现场控制单元进入程序控制器，系统自动关闭进料阀。

　　The interior of the bin pump is connected to the electrostatic precipitator ash hopper, and fly ash enters the bin pump. When the ash level in the bin pump is high enough to contact the level gauge probe, the level gauge generates a level full signal, which enters the program controller through the on-site control unit, and the system automatically closes the feed valve.

　　2、加压流化阶段进气阀开启，进料阀、出料阀及二次吹扫阀关闭。

　　2. The inlet valve is opened during the pressurized fluidization stage, and the feed valve, discharge valve, and secondary purge valve are closed.

　　压缩空气通过流化盘进入仓泵，飞灰流化，当仓泵内压力升高到某一设定数值时，出料阀打开，结束加压流化。

　　Compressed air enters the bin pump through the fluidization disc, and the fly ash is fluidized. When the pressure inside the bin pump rises to a certain set value, the discharge valve opens, ending the pressurized fluidization.

　　3、输送阶段进气阀及出料阀开启，进料阀及二次吹扫阀关闭。

　　3. During the conveying phase, the inlet and outlet valves are opened, while the inlet and secondary purge valves are closed.

　　灰气混合物进入输送管道，此时仓泵内压力保持平稳。当仓泵内飞灰输送结束时，管路阻力降低，仓泵内压力下降，当降至下限压力数值时，结束输送状态。

　　The ash gas mixture enters the conveying pipeline, and the pressure inside the bin pump remains stable at this time. When the fly ash transportation in the silo pump is completed, the pipeline resistance decreases and the pressure inside the silo pump decreases. When it reaches the lower limit pressure value, the transportation state is ended.

　　4、吹扫阶段二次吹扫阀开启，进料阀关闭，进气阀、出料阀仍保持开启状态。

　　4. During the blowing stage, the secondary blowing valve is opened, the feed valve is closed, and the inlet and outlet valves remain open.

　　压缩空气清扫仓泵及管道内的余灰，此时仓泵内无飞灰，管道内飞灰逐步减少，最后几乎呈空气流动状态。系统阻力下降，仓泵压力降至一稳定值，定时一段时间后吹扫结束。进气阀，出料阀及二次气阀关闭，进料阀开启，仓泵恢复到进料状态。

　　Compressed air is used to clean the residual ash in the bin pump and pipeline. At this time, there is no fly ash in the bin pump, and the fly ash in the pipeline gradually decreases, finally almost in a state of air flow. The system resistance decreases, and the pressure of the bin pump drops to a stable value. After a certain period of time, the blowing ends. The intake valve, discharge valve, and secondary air valve are closed, the feed valve is opened, and the bin pump returns to the feeding state.

　　二、常见故障及处理仓泵常见故障一般在流化加压阶段，仓泵内压力上升缓慢达不到输灰要求主要原因有以下几个：

　　2、 Common faults and handling of bin pumps. Common faults of bin pumps usually occur during the fluidized pressure stage, where the pressure inside the bin pump rises slowly and cannot meet the requirements for ash transportation. The main reasons are as follows:

　　1、储气罐压缩空气压力低或进气阀开不到位。

　　1. The compressed air pressure in the storage tank is low or the intake valve cannot be opened properly.

　　2、进料阀漏气：1）进料阀没有关到位，解决办法：调整气缸行程位置使进料阀阀盖关闭严密。2）进料阀阀座或阀盖上下密封圈吹损 解决方法：需把整个进料阀总成拆下，拆下上下密封圈，检查阀座与阀盖是否有吹损，如有需补焊车加工后换装新的密封圈。

　　2. Leakage of feed valve: 1) The feed valve is not closed properly. Solution: Adjust the cylinder stroke position to make the feed valve cover tightly closed. 2) Solution for blowing damage to the upper and lower sealing rings of the feed valve seat or valve cover: The entire feed valve assembly needs to be removed, the upper and lower sealing rings need to be removed, and the valve seat and valve cover need to be checked for blowing damage. If there is any damage, it needs to be repaired by welding and machining, and a new sealing ring needs to be installed.

　　3、出料阀漏气：1）出料阀关不到位。解决办法：通知热工检查电磁阀及气管路。2）出料阀密封组件吹损需更换出料阀

　　3. Leakage of discharge valve: 1) The discharge valve cannot be closed properly. Solution: Notify the thermal engineer to inspect the solenoid valve and gas pipeline. 2) The sealing component of the discharge valve is blown and needs to be replaced

　　4、仓泵流化堵塞：1）飞灰量多，粘性大，飞灰潮湿，这种情况一般发生在电除尘检修过后，由于水冲洗电除尘或长时间不投用引起。2）压缩空气水分过多引起流化堵塞。需检查空压机出气后净化装置是否正常及储气罐疏水情况。确保压缩空气干燥。

　　4. Warehouse pump fluidization blockage: 1) There is a large amount of fly ash, high viscosity, and wet fly ash. This situation usually occurs after the maintenance of the electrostatic precipitator, due to water flushing of the electrostatic precipitator or prolonged disuse. 2) Excessive moisture in compressed air can cause fluidization blockage. It is necessary to check whether the purification device after the air compressor exhausts is normal and the drainage condition of the air storage tank. Ensure that the compressed air is dry.

　　本文由仓泵  友情奉献.更多有关的知识请点击  https://www.sdxinlujx.com/   真诚的态度.为您提供为全面的服务.更多有关的知识我们将会陆续向大家奉献.敬请期待.

　　This article is a friendly contribution from Cang Pump For more related knowledge, please click https://www.sdxinlujx.com/ Sincere attitude To provide you with comprehensive services We will gradually contribute more relevant knowledge to everyone Coming soon.