Boring Machine is a machine used to jump the alleyway on the ground.There are many types of excavations: divided into ordinary machines and tunl boring machine (TBM) according to the operation objects; divided into open excavators and shield -type excavators according to the operation method.Let me introduce it in detail below!
Determine the best cutting method according to different nature of coal rocks, what are the specific methods?
(1) When the semi -coal rock is excavated, the coal should be cut first, and then the rock is cut, that is, the softened and hard program.
(2) Generally, you should start cutting from the lower part of the working surface. First, cut the bottom and pull the groove.
(3) The cutting must be considered by the coal rock, and the cut head should move along the coal layer direction.
(4) Cut the whole coal, you should first brush all sides, and then break the middle part.
(5) For hard coal, take the top -down cutting procedure.
(6) For the broken top board, the method of leaving top coal or cutting off the surface should be adopted.
What inspections must the driver be performed before the boot
(1) The handlebars and buttons of each operator should be complete, flexible and reliable, and each operating handlebar is hit to zero.(2) Mechanical, electrical, hydraulic systems, and safety protection devices should be normal and reliable, components should be complete, and the connection screws of each ministry should be complete and tight.(3) The cable cards of each connected device of the electrical system shall be fully firm, and the cables are neatly hanging, without damage and squeezing.(4) The joints of the hydraulic pipeline and the atomization system pipeline should be no damaged or leaked, and the protective device should be complete and reliable.The extended cables and water pipes used are prepared along the working surface, and the suspension of the cable and water pipes behind the excavation machine must not exceed 10 meters.(5) The oil level and oil level of the reducer and hydraulic fuel tank shall be appropriate, without leakage, and inject oil and lubrication according to technical requirements.
(6) Reprinted tape machines should ensure intact and rollers.(7) The cut head and teeth should be intact. If the teeth are not used or severely worn, the power supply should be cut off and replaced in time.(8) Load rake claws and sprocket wheels.The verticality of the scraper chain should be appropriate. There is no disconnected chain to lose sales. The scraping plate is completely non -damaged. The anti -loose nut should be tightened to prevent the scraper from loosening.(9) The track, trackboard, axis, and sprocket wheels remain intact, and the tightness of the track is adjusted according to regulations.(10) Spraying system, cooling device, and lighting should be intact.
What are the prerequisites for the safety operation of the excavation.
1. The driver should have the cultural level of junior high school or above, loves his job, has a strong sense of responsibility, and can only be employed after special training and examinations.2. The driver must be familiar with the structure, performance, and action principles of the machine, which can accurately and proficiently operate the machine, and understand the general maintenance and fault treatment knowledge of the equipment.3. Drivers must insist on using all the security atresia and protection devices on the excavator. They must not change or throw them off without authorization. They cannot adjust the pressure of the hydraulic system and atomized systems at will.4. The operating handle, buttons, indicator instruments, etc. of various electrical equipment control switches should be properly protected to prevent damage or loss.5. In addition to being proficient in operating the machine, the machine should also perform daily inspection and maintenance of the machine.When the excavator is found to have a failure, you should actively cooperate with the maintenance personnel for treatment. When it is not processed, report it to the district team or dispatching room immediately.
6. You must be equipped with two drivers and deputy drivers. The driver is responsible for operation. The deputy driver is responsible for monitoring.We must concentrate, not to leave the job without authorization, or entrust the operation of unlicensed personnel.7. When the excavation is stopped, maintained and handed over, the isolation switch on the machine must be disconnected and the power outage sign is hung.8. For the operation and existing problems, the driver must explain to the successor driver clearly.9. When the gala concentration reaches 1.5%within 20 meters before and after the excavation, it must be stopped, cut off the power, and process it.When the gas concentration must be reduced to less than 1%, the power can be delivered.10. After taking over, the driver should carefully check the situation around the working surface and the movement of the movement to ensure the safety, neat and barrier -free work area.

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