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Safety Operation Skills Related to Coal Mine Tunners-Safety Operation Skills of "Knocking and Asking for Top"
Release time:
2023-01-05
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Safety Operation Skills Related to Coal Mine Tunners-Safety Operation Skills of "Knocking and Asking for Top"
"Knock help ask the top" safety operation skills
(1) the working face to implement the "five before and two after" "knock help ask the top" system, of which "five before" is before construction,Before hitting, before supporting, before charging and before shift handover, the "second post" refers to after blasting and succession. "Knock and ask for the top"After the completion of the work, normal into the next production process.
(2) The order of looking for the top and the help is to top first and then help, from the outside to the inside. Face and help department to find help order is
First up and then down, from the middle to the side.
(3) For the bolting and shotcreting roadway that has been permanently supported at the back of the head-on, each shift shall assign special personnel to the responsible area of the unit.The area is inspected to "knock on the top" of the cracked and cracked spray layer ".
(4) Before commencement, the team leader must conduct a comprehensive inspection of the safety situation of the working face to confirm that there is no danger.After that, the party allowed personnel to enter. The team leader is responsible for the work of "knocking on the help and asking for the top" at the working face. When "Knock on the gang and ask for the top,Other unrelated persons are not allowed to enter the workplace.
(5) Personnel with strong sense of responsibility and practical experience shall be selected to be the top personnel. Each operationBefore that, we must carry out "knocking on the help and asking for the top", inspect the support situation of the construction section, and find out the failure support and dangerous gangue work.Rock timely processing.
(6) The hat belt and cuffs of the top personnel should be tied tightly, the protective gloves should be worn properly, and the miner's lamp should be placed on the safety helmet,to facilitate observation.
(7) Before the work of "knocking on the help and asking for the top" starts, the specific operators shall be in the team management personnel and on-site personnel.With the cooperation of the staff, fingers, dictation and thoughts are familiar with and master every job in the "knock on the top"sequence and safety precautions.
(8) Before finding the top, the construction personnel shall stand at a safe place with effective support and ensure that they can find the top.The arm does not extend into the empty roof area. When looking for the top of the working face excavated up the mountain, people should stand on one side of the working face, noWe have to stand in the middle to prevent the gangue from hurting people.
(9) Before looking for the top job, the top search and monitoring personnel must make a pre-judgment on the falling direction of the gangue to be found,And adjust the standing position to avoid the falling and rolling direction of gangue.
(10) When finding the top, prevent coal and gangue from falling down the rod. When finding gangue falling down the rod, loosen it for the first time.Hands down tools. When the long handle tool is used to find the top, the upward angle shall not be greater than 45 °.
(11) The top-looking personnel shall adopt different treatment methods for different surrounding rocks according to the site, and shall not be treated temporarily.When going down, protective measures such as laying columns and strengthening support shall be taken. The successors shall be carefully explained and filled in.Good shift record. When "knocking on the help and asking for the top", the top plate of the working face is detached and broken and cannot be picked off immediately.Temporary support measures must be taken or immediately supported, and the temporary support must be firm and reliable.
(12) When the head-on is inverted, it is not appropriate to rake out too much head-on coal and gangue, resulting in super-high roadway, which is not conducive to roof finding.Personnel safety; If the head-on is high, the top-looking personnel should stand on the welding working platform to improve the top-looking personnel.The height of the, in order to prevent the gangue down the rod.
(13) When "Knock on the top", knock on the top plate with a long tool, the sound is clear and loud and has no obvious sound.Vibration, indicating that the top plate is in good condition; The top plate has no cracks and makes a "empty" drum-like sound when "knocking on the top,It indicates that the roof has a separation layer but is easy to find out, and support must be carried out in time.
(14) In the work of "knocking on the help and asking for the top", there are stratified cracks in the top and the help, and "empty" is issued when knocking"The sound should be found immediately. When looking for the top and help, you should slowly find it along the cracks and stratification. You must not have any spare spare time.Lucky psychology, don't find it. When finding the top, the method should be reasonable. When encountering thin-layered sandy rocks, the method should be used to find the top.Find along the rock layer, not hard planer, no empty roof operation.
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