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Ventilators should know and be able to-ram workers
Release time:
2023-01-06
Author:
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Ventilators should know and be able to-ram workers
Drinker
1. induction conditions
(1) The air drum worker must be qualified through professional training and take up his post with valid certificates.
(2) Master the "Coal Mine Safety Regulations" and the provincial and company methods, processes, and,Note.
(3) Understand the allowable concentration, over-limit hazards and prevention knowledge of various toxic and harmful gases in the mine.
(4) to understand the coal mine gas, coal dust explosion and fire prevention knowledge, and familiar with the mine disaster avoidance route.
2. preparation
When selecting the air duct, expand the air duct and carefully check whether there is any break in the air duct, air duct ring, lifting ring andWhether the anti-pressing edge is in good condition; After the selected ram is folded, tie it tightly with hemp rope or lead wire. Take the clamp, glue,Scissors, needle and thread and other tools to the work site.
3. operation method
(1) Before hanging the air duct, contact the person in charge of the construction of the heading face and check the hanging air duct in detail.Roadway roof and side support.
(2) Before hanging the ram, the temporary ram hanging during tunneling shall be removed and arranged before hanging.
(3) Ladders or high stools shall be used for hanging the ram. Ladders and high stools are not allowed to be placed on the conveyor. Need to cross the transmissionWhen sending the plane, you must walk across the bridge.
(4) When hanging the air duct, first take a section of wire rope (Φ6.2mm or more) slightly longer than the air duct as the lead wire,Tighten the wire rope with the shed beam by hand with the column return device or guide chain, and then kink and fix the air cylinder with the wire rope.
(5) After the lead wire is fixed, unfold the air cylinder and hang it on the lead wire one by one.
(6) When hanging the air duct, first alignment and connection of the interface, and pressing the reverse side to ensure no air leakage; ThenThe air duct shall be hoisted for tension and leveling, and the distance between the air outlet and the heading face shall comply with the regulations.
(7) When hanging the skeleton ram in the turning roadway, hang the skeleton ram first. If the original ram is too longThe interface edge of the air duct and the skeleton air duct is reversed to a proper distance, and the last living ring in the returned air duct and the skeleton air ductGood docking. If the original air duct is not long enough, a short joint should be added to connect with the skeleton air duct. The air duct must not appearDead bend.
(8) After the air duct is hung, the spare air duct shall be placed in a safe place.
(9) After the on-duty air duct is suspended, a comprehensive inspection shall be carried out on the whole air duct, and any problems found shall be handled in time.
(10) Fill in the length of the on-duty ram on the local ventilation management board.
4. considerations
(1) the hanging of the ram should be "two against all the time" (against the top, against the help, hanging straight), and avoidThe ram is cut and squeezed.
(2) The air duct shall be hung on every ring, and shall be as close as possible to the lane and the height shall meet the design requirements.
(3) The hanging air duct shall be connected and hung section by section in the direction from outside to inside.
(4) The interface between the air duct is tight. The colloidal air duct can be used with double reverse side joints or three-ring joints. When plugging, it should beForward connection, no reverse connection.
(5) The connection between the iron air cylinder and the iron air cylinder or the colloidal air cylinder should be added with soft liner, and the iron wire should be tightened to ensureNo leakage of wind.
(6) The diameter of the air duct shall be consistent. If it is inconsistent, it shall be connected by transition section. should be big first and small later,No flowers to pick up.
(7) often check the quality of the ram, found that there is a break, air leakage, to repair in a timely manner.
(8) When replacing the ram, do not stop the wind at will. When it is necessary to stop the wind, it shall be carried out in accordance with the approved wind stop plan.All right.
(9) In case of sudden disconnection or major rupture of the ram during normal work, the person at the affected location shall be notified in time.Withdraw, cut off the power supply, and repair and replace as soon as possible. In the replacement process should pay attention to check the harmful gasThe accumulation of the situation, in accordance with the relevant provisions of the operation. After the replacement, report to the dispatching room.
(10) When dismantling the air duct of the single-headed roadway, the wind shall not be stopped, and the air shall be dismantled from inside to outside in turn.
(11) When operating near the belt conveyor and scraper conveyor, you must first contact the conveyor driver,If necessary, the conveyor can be stopped to ensure the safety of the operator.
(12) When hanging the ram in the roadway where the locomotive is running, a safety alert shall be set to prevent being scraped or hit by the locomotive.When hanging the air duct at the height of the roadway, the operating frame shall be set up and the operation shall be stable.
(13) When the air duct passes through the air door, a hard transition air duct shall be added to pass through the air door, and the air duct shall not be directly penetrated.through the damper.
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