| 摘要 |
PURPOSE:To prevent dust explosion of coal in an air blowing pipe and in a plate of tansport destination, by performing pneumatic transport of the coal while jetting water in the air blowing pipe from a water jet nozzle and humidifying an air stream for pneumatically transporting the coal. CONSTITUTION:A water jet nozzle 5, adjustable with jetted water, is arranged in a blower air pipe 2 between a blower 1, feeding pressure air, and a feeder 4, supplying coal. This water jet nozzle 5 is constituted such that a regulator valve 6 is interposed in a feed water pipe 5a and a quantity of jetted water is adjusted by action of this regulator valve 6. The quantity of jetted water from the water jet nozzle 5 is controlled by a detected electrical signal value of humidity detector units 7, 8, and detected electrical signals of the both humidity detector units 7, 8 are input to a control panel 9, then the both signals are combined and rearranged in this control panel 9 to actuate the regulator valve 6. |
