Safety measures for open pit mining operations

Open pit mining involves many processes, including perforation, mining, transportation and dumping. The open-pit mining operations focus on the characteristics of these four production processes, focusing on eliminating or weakening safety hazards in order to take effective measures. Safety measures. And consider the following factors:

1) Perforation

(1) When the drilling machine walks along the edge of the step, the actual part of the frame shall not be less than 5m from the outer edge of the step;

(2) When the rig passes the high-voltage line, the distance between the highest part of the rig and the high-voltage line shall not be less than 5m;

(3) When the drill passes through the ramp, the drill stand must be returned to prevent the drill from tipping over;

(4) When drilling, the minimum distance from the driver's cab to the cliff edge shall not be less than 1m;

(5) When the rig is dropped, the rig can not stand up and down;

(6) If the mechanical, electrical, and airway system safety control devices fail, and the dust removal device fails or is damaged, stop the operation immediately and repair, maintain, and replace it in time;

(7) The roller drill should be equipped with a dust removal facility;

(8) The rig should be operated at night, and the lighting facilities should be perfected;

(9) Before the rig starts to operate, check whether there are people and obstacles around the machine;

(10) Strengthen the operator's safety technical knowledge training, formulate safety technical operation procedures, improve the ability of operators to identify dangerous and harmful factors and prevent accidents.

2) Loading

(1) When the electric shovel is transferred, a special team should be organized to shovel the full-time shovel;

(2) When the umbrella rock appears on the working face, the front work of the electric shovel is prohibited;

(3) When operating the electric shovel, according to the standard operation, the operator should wear personal protective equipment;

(4) When the electric shovel is in operation, no one shall stay near the shovel cantilever and the bucket and near the bottom of the working surface. Under any circumstances, it is strictly forbidden to stand under the bucket;

(5) Reasonably design the side bow line to avoid the bucket hitting the overhead line when the electric shovel is in operation;

(6) During the operation of the electric shovel, it is found that there are suspended rock blocks, signs of collapse, and guns. The operation must be stopped and the electric shovel must be opened to a safe place;

(7) Each shovel should be equipped with a whistle or siren, and a warning signal should be issued during the operation of the shovel;

(8) Strengthen the dust removal of the working surface.

3) Loading station

(1) The mine dump should be equipped with a gear block;

(2) When working at night, the discharge port should ensure lighting;

(3) It is strictly forbidden to enter the mine bin beyond the large size of the specified size;

(4) The design and construction of the base and structure of the transfer station must conform to the specifications;

(5) The reloaded trains are strictly aligned and the loading should be uniform;

(6) The transfer station should take reasonable measures against dust.

4) Stope transportation

(1) Regularly repair and repair the stop cars to ensure the normal operation of the transport vehicles;

(2) When working at night, ensure lighting in the stop;

(3) The stope train line should be regularly maintained, and hidden dangers should be eliminated in time;

(4) In the design and production organization, steam and iron crossing should be avoided as much as possible. If it is unavoidable, certain measures should be taken to ensure the safe operation of trains and vehicles;

(5) The maintenance section should regularly inspect the road section. The fixed pit line of the stope and the uphill road of the dumping site should be equipped with fences and road signs to timely remove road shoulders, side ditch, sink, gutter and drainage ditch, and timely repair the bumpy road surface;

(6) The dump truck shall not be allowed to approach when the bucket is raised and lowered. The bucket manipulator shall not be allowed to be manipulated except the driver. After the work is completed, the manipulator shall be placed in the neutral position;

(7) The exhaust of the automobile should be purified, and the road surface should be dust-proof and anti-slip;

(8) Strengthening safety production education, prohibiting illegal operations, illegal dispatching, unlicensed employment, and drinking and driving;

(9) The design of train lines must conform to the regulations. A certain safety distance must be maintained between the structures on both sides of the railway, the piles and the railway, and the maintenance of the railway lines should be timely to prevent the lines from bending, sinking and increasing the gauge distance;

(10) Each locomotive shall be equipped with a brake. In addition to the “single brake”, there shall be a “train brake” used by the driver to adjust the train speed or stop.

(11) Even loading, no overweight

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