Suspension single hydraulic props are mostly used as supporting equipment in coal mines, and underground mines are more dangerous places. Suspension single hydraulic prop is a type of external injection type single hydraulic prop. When injecting liquid, the three-use valve does not rise with the rise of the live column of the prop. The use of any kind of equipment is not casual. Everyone needs to understand him and master the correct use method, so that they can play a good role. Let's understand the technical standards of suspension single hydraulic props together.
Technical standards of suspension single hydraulic props:
1. Grasp the reasonable height of the bracket: the large support height should be less than 0.1 meters of the designed high height of the bracket, and the small support height should be greater than 0.2 meters of the designed small height of the bracket.
2. Valve block, column and jack used in the bracket. They are not allowed to be dismantled and inspected underground, and can be replaced as a whole. The cylinder body should be shortened as short as possible before replacement, and the dust cap should be worn at the joint.
3. All kinds of spare hydraulic hoses, valve blocks, hydraulic cylinders, pipe joints, etc. must be blocked with special plugs, and they should be cleaned with emulsion when they are replaced.
4. When replacing the hose and hydraulic components of the valve group, it is only allowed to be carried out in the "no pressure" state, and it is not allowed to direct the high-pressure outlet to people.
5. It is not allowed to remove and adjust the safety valve on the bracket at will.
6. When operating the hydraulic support, there are eight essentials for operation, namely: fast, uniform, sufficient, straight, straight, stable, strict and clean.
7. If there are problems with the roof and coal gang, it should be reported to the squad leader in time, or the supporter will use his own roof or lead the roof to deal with it;
8. If the bracket may be crooked, inverted or bitten, which affects the roof management, the necessary adjustment jacks, short-section anchor chains or single pillars should be prepared for adjustment and correction when the rack is moved in the next step;
9. Clear the obstacles in front of and on both sides of the bracket, hang and tie the pipes, lines and communication facilities neatly;
10. Check the pipeline of the rack before moving the rack each time. Do not scratch the card and remove obstacles in front of the rack;
11. When the rack is moved, the jacks of the two groups of brackets on the upper and lower sides of the rack are in a contracted state;
12. The moving frame is blocked and cannot reach the specified step distance. The operating handle should be placed in the liquid-breaking position, and the operation can be continued after the cause is found and dealt with;
13. During the adjacent frame operation, you should stand in the previous frame to operate the next frame; during this frame operation, you must stand in a safe place and face the coal wall to operate. It is strictly forbidden to enter the coal plate or feet of the scraper conveyor Push the front end of the hydraulic support base;
14. No other personnel are allowed to work under and in front of the moving frame. When moving the end bracket, all personnel except the mover will be evacuated to a safe place;
15. "With pressure shift frame" can be used under the false top net: maintain a certain initial support force, close to or slightly away from the false top net forward moving bracket, to prevent scratching the net or the occurrence of a large net pocket to cause the roof to fall.
16. When the working face meets faults, hard coal, and hard rock layers, it is necessary to cover up the pillars, jacks, pipelines, and communication facilities of the support to prevent collapse. Before moving the rack, the coal gangue must be cleaned up.
There are many links in the suspension single hydraulic prop during the work process, and only by careful operation in these links can we get higher efficiency and better benefits. Only a deep understanding of the standard of the suspension single hydraulic prop can use and play its role more effectively. If you want to know more professional knowledge of single hydraulic props, please feel free to leave us an online message.
