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Main fan emission gas safety technical measures

Release date:2018-12-04  source:中南选矿网  Browse times:865
       The main fan in the well stops the wind. Before the wind supply is restored, the main fan must be discharged. The following safety technical measures are formulated: 1. Establishing a gas emission group: Team leader: Chief engineer deputy leader: Member of the Mechae Mine Safety Mine : Underground gas discharge flow route for all functional departments: All full pressure roadway - East/West wing return air - Total return air - Main fan - Ground 2, Operation steps and safety technical measures 1. Main fan recovery After the power is supplied, the team leader organizes relevant personnel to discharge the main fan. 2. The main fan discharge gas adopts the short-circuit airflow method and the principle of low-concentration emission. 3. Start the primary fan first. The tile inspection worker shall measure the gas concentration at the main fan outlet, and when the gas concentration is less than 2%, order the secondary main fan to be started; if the gas concentration is greater than 2%, open the safety exit damper, and the gas concentration of the main fan outlet is 2 When the main fan is started normally, if the main fan second level starts normally, if the tile inspection worker measures the concentration of the main fan outlet more than 2%, then open the explosion-proof cover to increase the short-circuit air volume, and wait for the gas concentration of the main fan outlet. When it is less than 1%, close the safety exit damper and the explosion-proof cover, and the main fan discharge gas ends. 4. When the gas concentration at the exit of the main fan does not exceed 1%, the ventilation gas inspector can check the ventilation gas condition in the well. only the tile inspection worker can measure the gas concentration below 0.75% in the total return air. Into the well to carry out local gas discharge work underground.

 
 
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