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图示为渣罐自动喷石灰乳涂白装置。石灰乳由泵经过管道输送。当渣罐2移动到喷头3的下面时,传感器4就动作,使喷头3喷射出石灰乳。当渣罐2移离喷头3时,则传感器5动作,使喷头3停止喷射石灰乳。这样就自动完成渣罐的喷石灰乳涂白处理。传感器4与5的基础件是终点开关。喷射石灰乳用的喷头3是一种机械式喷射喷头。喷射动力是用压力为3～4×10~5帕(3～4大气压)的压缩空气,其压力大小是由压力传感器9监视的)。中间则借助于一个装设在喷头3内的薄膜阀6。当压缩空气的压力下降到10~5帕(1大气压力)时,执行机构7就将石灰乳总管8遮断,从而使喷头3紧急切断。压缩空气经管道13送入。整个系统的工作,由控制单元10自动监视。当发生事故时,该系统被紧急切断,灯光信号盘11就会发出灯光报警信号。该系统还设有远距离起动装置12。
Pictured slag jar automatic spray lime milk white coating device. Milk from the pump through the pipeline. When the slag pot 2 is moved below the head 3, the sensor 4 is actuated to cause the head 3 to eject the milk of lime. When the slag pot 2 is moved away from the spray head 3, the sensor 5 is actuated to stop the spray head 3 from spraying the milk of lime. This will automatically finish the ladle lime milk white coating. The basic components of sensors 4 and 5 are end switches. The spray nozzle 3 for spraying the milk of lime is a mechanical spray nozzle. Jetting power is compressed air at a pressure of 3 to 4 x 10 ~ 5 Pa (3-4 atmospheres), the pressure of which is monitored by the pressure sensor 9). In the middle by means of a membrane valve 6 provided in the spray head 3. When the compressed air pressure drops to 10 ~ 5 Pa (1 atmospheric pressure), the actuator 7 blocks the lime milk main pipe 8, so that the nozzle 3 is cut off in an emergency. Compressed air into the pipeline 13. The entire system is automatically monitored by the control unit 10. When an accident occurs, the system is cut off urgently and the light signal panel 11 emits a light alarm signal. The system also has a remote starting device 12.