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Checking safety precautions:

        1, the air cannon work or standby work, absolutely prohibited personnel down to the warehouse or in the air cannon overhaul;

        2, confirm the air gun in a pressurized state;

        3, checking, should avoid ears close to the quick release valve, in order to avoid impact damage eardrum airflow;

        4, change without permission the circular jet blasting procedure of automatic control box and marshalling parameters, it is forbidden to random implementation manual spray explosion. 2: is temperamental predominance material safety operation procedures

        1, confirm unattended operation in the warehouse, and no one is after repair air cannons, in clean mouth put up "no admittance" warning signs

        2, open the inlet valve of air supply and air gun, close the discharge valve;

        3, confirm the air gun in a pressurized state;

        4, confirm the normal operation of the downstream equipment, special attention should be paid to the discharging port logistics flow.

        5, confirm the pressure inside the air tank at 0 per air cannons. More than 5 mpa.

        6, open air cannons electromagnetic valve power supply or manual button control box, spray air cannons, pay special attention to the solenoid manual button or push button actuation time shall not exceed 1 seconds;

        7, the pressure inside the air tank to air cannons greater than zero. After 5 mpa, can be in the next round of cycle.

        8, close the air supply, and hang "do not open the air supply" warning signs;

        9, close the inlet valve of each air cannons, open the discharge valve and filter water valve;

        10, per air cannons, emptying air tank of compressed gas;

        11, disconnect the power of the control box, and hang "do not switch" warning sign.