This regulation specifies the content and requirements for safe operation beneficiation plant equipment maintenance man.
This procedure applies to equipment maintenance workers in the concentrator.
2 content
2.1 Operators must be qualified after safety training; wear professional protective equipment such as helmets and gloves before starting work. Employees must wear three tight dresses; women workers must be in safety helmets, not wearing shorts, high heels, and slippers.
2.1 The maintenance worker must be trained to obtain an electric (gas) welder operation permit before starting work.
2.2 Before work, check the safety around the work, and ensure that all operations comply with safety regulations.
3 welding
3.1 maintenance man welding work was used and the metal workpiece with the ground apart, have a protective earth.
3.2 The welding site should be well ventilated. Before gas welding, gas cutting and electric welding work, the combustibles in the work and welding should be removed or effective protective measures should be taken at the welding site.
3.3 The secondary circuit and the outer casing of the electric welding machine must have good grounding. The electric leakage should be checked frequently. The primary and secondary lines must be complete. The line insulation must be good. The length of the primary line must not exceed 5 meters.
3.4 The clamp of the clamp electrode must be well insulated, and the power should be cut off when the welder moves.
3.5 When the work is interrupted, the power must be cut off, and the site should be cleaned up after work.
4 gas welding
4.1 Oxygen cylinders are forbidden to come into contact with oil. It is not allowed to be placed in the same place as flammable materials. Empty and full bottles are stored separately.
4.2 Oxygen bottles and acetylene bottles should be stored separately, 10 meters away from open flames.
4.3 Oxygen cylinders should be placed firmly, with anti-vibration rubber washers, and the shoulders should not be rolled. There should be a special trolley.
4.4 The gas in the oxygen cylinder is not allowed to be used completely, and the residual pressure of not less than 0.5 kg should be left.
4.5 The acetylene bottle and the oxygen cylinder shall not be stored in a place with a distance of not less than 5 meters.
4.6 Since the welding nozzle is blocked by molten metal or the flame is abnormal, when the welding temperature is too high, in order to prevent the oxygen from colliding with the explosion, the acetylene valve should be closed immediately, then the oxygen valve should be closed, and the repair and cooling should be stopped.
5 lifting aspect
5.1 Lifting workers must carry out certification work and strictly implement the “Ten No Hanging†procedures.
5.2 The selection and setting of hooks, spreaders and wire ropes are in accordance with the requirements of the dwelling program, and the quality meets the requirements of safety technology.
5.3 Electrical equipment, hydraulic devices, clutches, brakes, limiters, anti-collision devices, alarms and other operating procedures and safety devices comply with the use of safety technical conditions, and carry out no-load test.
5.4 Ground attachment conditions, lifting of the lifting machinery and the ground or the setting of the skid.
5.5 Confirm obstacles and preventive measures within the working space of the crane.
5.6 Equipment lifting lugs and reinforcement measures, no falling objects and debris inside and outside the equipment.
5.7 When the hanging object is not rocking, it is strictly forbidden to use the hand to help. If necessary, use the stabilizer bar.
6 maintenance aspects
6.1 The working environment should be dry and tidy, and the passage should not be blocked.
6.2 A multi-person workbench shall be provided with a protective net in the middle, which shall be staggered when operating in the opposite direction.
6.3 flat shovel, salt and other tail allowed quenching, flange cracking should occur in time, the workpiece should be to prevent tick shovel wounding scrap iron splash, using the reverse Wrench allowed, not allowed to wear gloves while playing sledgehammer No one is allowed in the direction of the sledgehammer.
6.4 Cleaning oil, lubricating grease and waste grease must be stored at designated locations. Waste oil and waste cotton yarn are not allowed to be littered anywhere.
6.5 Use a vise to clamp the workpiece, which should be clamped and clamped. The workpiece should not exceed two-thirds of the maximum stroke of the jaw.
6.6 Mechanical dismantling, the bracket should be used, the frame should be stable, and the slewing mechanism should be stuck.
6.7 Repair machinery, should be parked in a flat and solid place, the support is firm and wedged, when using the jack, it must be stabilized with the bracket.
6.8 The machinery in the inspection shall be hung on the start button with the warning sign “Being repaired, prohibited to startâ€, and the non-maintenance personnel shall not be allowed to start or rotate the machine. During maintenance, it is not allowed to reach into the gearbox or use your fingers to find the alignment hole.
6.9 Do not wear gloves when using the rotating equipment tool.
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