What should be paid attention to in the operation of rotary drilling rigs

The first is to pay attention to safety, safety first.

The school can only learn more theoretical things plus a driver's license, and there is not much experience in practical operation at all, the school has too little practical operation, and if you apply for technical skills, you may not be recognized! It is recommended to learn from these others first, and then wait until the technology is mature, and then go to the school to take the test directly to obtain the graduation certificate, so that there is both practical experience and the so-called driver's license ......It should be easy to get through that way!

It's okay, it's better than entering the factory, but it depends on your adaptation to the construction site, I am the one who opens the rotary excavator, the salary is 16,000, the salary of the medium-sized rotary excavator is about 15,000, the large one is about 18,000, the larger is more, the small minimum is 12,000, the apprentice is not easy to say, it is quite easy to learn, and it is not a high-tech thing, praise.

I think simulator training is useful and it works! Because first of all, you have not been in contact with the rotary excavator, first of all, you need to be familiar with the action, and its coherence connection, if you use the simulator for a day, you will definitely benefit a lot, but the action practice also needs to use the real rotary excavator to practice, when you practice with the real rotary excavator, you will soon learn, and you will use the potential of the simulator to tap out. Simulator training school, if only use simulators for training, it is not possible.

Both need to be practiced to learn faster.

How long to learn depends on the speed of your learning and the mastery of technology Rotary drilling rigs do not seem to have very strict requirements for academic qualifications

It is not difficult to learn if there are other construction machinery operation foundations, then the start will be very fast, just learn not to be very proficient when you can go out to ask for less money, or have friends or fellow villagers to do this, at the beginning of the first with them to learn. It's almost enough to do a project and a half. Of course you have to do it.

For veterans, it depends on accumulation, and different formations and different situations need to be experienced by themselves to know how to fight. The operators of our unit also have new tricks and are not very skilled, generally just starting to drive about 6000, and then rising when they are proficient.

It is very easy to learn, generally novice learning only takes about 3 months to open, and it takes about 1 year to really learn, and there are many apprentices in Longgong rotary drilling rig here.

Don't go to any so-called school to learn, it's a lie at all, what you learn is only operation, you can't learn any technology, that Hengqiang School in Hunan and Yingtan, Jiangxi Province joined forces to deceive students, so it's better to go out and find a master to take you.

Very studious, he doesn't need to have a high level of education. As long as you have a flexible mind and are willing to learn, it is very easy to learn, and you will make a lot of money by having a skill.

It is very easy to learn, generally novice learning only takes about 3 months to open, and it takes about 1 year to really learn, and there are many apprentices who are learning from the rotary drilling rig.

How long to learn depends on the speed of your learning and the mastery of technology Rotary drilling rigs do not seem to have very strict requirements for academic qualifications

1. First of all, we must have a comprehensive understanding of the drilling rig, that is, maintenance

The grease nozzle of each part, how long to make butter, how long to change the oil, how long to change the filter element, how long to change the wire rope, etc., these drilling rig manuals are available.

2. Operation and walking:

The operation should listen to the master's teaching, how much drilling speed, pressurization, and what drill bit is appropriate for each formation, because the formation in each place is different, and the operation method is also different.

Walking is the most dangerous process of rotary drilling rigs, and it is necessary to observe the construction site first, avoid weak places and mud pit edges, and prevent the drilling rig from tipping.

3. Generally, apprentices start from the maintenance of the drilling rig, and then operate on the drilling rig, so that they have a deeper understanding of the drilling rig and can solve small problems by themselves.

Hope it helps.

I think this technique can be learned in many training schools. Of course, you can also go directly to the construction site and ask the masters who drive the machines on site. This way it may be faster and more useful to learn.

Technical schools have courses in the operation of rotary drilling rigs. In addition to learning in technology and schools, you can also organize your own employees to learn operating techniques through the training courses provided by rotary drilling rig manufacturers.

Summary. 1. Prepare pipe wrenches, sharp cones, drill bits, tools, etc. for drilling. 2. Conduct a start-up test on the drilling rig on the well, check the components of the drilling rig, and go down the well only after it is in good condition.

3. Transportation and entertainment car drivers transportation operation standards and transportation regulations, and transport to the designated place.

4. Before installation, it is necessary to check and strengthen the support of the installation site, to knock on the top to remove the pumice rock and coal research, and contact the belt driver when the belt lane is installed, and the belt can be installed and drilled only after the belt is stopped.

5. Install according to the drilling rig manual, install the runway first, then use the compass to adjust the transfer runway, and then reinforce the runway, when installing the chain, it should be connected with both ends of the run, the chain tension is appropriate, and lubricating oil is applied at each rotation site; Finally, turn on the power supply, carry out the idling test drilling, and install the drill pipe, drill bit, and start the drill after the test drill has no problem.

6. There are four people working in drilling, one person starts the machine, one person connects the drill pipe, one person transports water, operates the control box, and one person is responsible for safety dynamics; Before starting the machine, check the cables, equipment, water source, and roof before turning on the machine.

How to operate the rig.

1. Prepare pipe wrenches, sharp cones, drill bits, tools, etc. for drilling. 2. Conduct a start-up test on the drilling rig on the well, check the components of the drilling rig, and go down the well only after it is in good condition. 3. Transportation and entertainment car drivers transportation operation standards and transportation regulations, and transport to the designated place.

4. Before installation, it is necessary to check the rubber hidden state and reinforce the support of the installation site, to knock on the top to remove the pumice rock and coal research, and contact the belt driver when installing the belt lane, and the belt can be installed and drilled only after the belt is stopped. 5. Install according to the drilling rig manual, Liang Yuan first install the runway, then use the compass to adjust the transfer runway, and then reinforce the runway, when installing the chain, it should be connected with both ends of the run, the chain tension is appropriate, and lubricating oil is applied at each rotation site; Finally, turn on the power supply, carry out the idling test drilling, and install the drill pipe, drill bit, and start the drill after the test drill has no problem. 6. There are four people working in drilling, one person starts the machine, one person connects the drill pipe, one person transports water, operates the control box, and one person is responsible for safety dynamics; Before starting the machine, check the cable, the tracking equipment, the water source, the roof, and the machine can only be turned on after it is in good condition.

a. After the machine is installed and debugged underground, it can be drilled. When the drill pipe and drill bit are installed, move the power head to the rear end of the frame, open the gripper claw, insert the positioning pin, put the drill pipe and the power head output shaft from the front end and tighten it, so that the power head rotates, advances the feed cylinder, and slowly advances, when the front end of the drill pipe passes the gripper, stop the drill bit and tighten the drill bit in front of the gripper. When the drill bit touches the hole rock, stop the machine (if the length of a drill pipe is not enough, you can add another drill pipe until the requirements are met.)

b. Open the water inlet valve of the cooler to connect the water braid, and set the drilling hole position. When drilling to a certain depth and the drilling tool is running smoothly, open the braiding valve to supply water.

c. In the process of drilling, the working oil pressure is constantly observed, and the throttle valve (fine-tuning) of the console can control the propulsion speed of the propulsion cylinder to adapt to the drilling of different lithologies. Note that it is not allowed to adjust the full relief valve on the pumping station and the control table at will.

d. When the drill pipe is connected in the middle, stop the propulsion first, and then stop the rotation, and pay attention to the alignment of the drill pipe square mouth with the gripper jaw when stopping the propulsion. Open the gripper positioning pin ALI11, after the jaw is inserted into the square mouth of the drill pipe, then manipulate the power head to reverse and slowly retreat, when the power head retreats to a drill pipe, move the water braid handle, compress the spring, put in the additional drill pipe and align the shaft, loosen the water braid handle, open the gripper jaw, start the motor to rotate and advance, and the drill pipe can be connected.

e. When the drill pipe, the cycloid motor keeps the forward rotation, and Shandong Zhongmei manipulates the propulsion cylinder to make the power head retreat, and stops when the square mouth of the second drill pipe is aligned with the card plate. Take out the gripper positioning pin, the card plate is stuck in the drill pipe, the power head is reversed and retreated, the threaded connection at one end of the drill pipe can be loosened, and the other end needs to be manually removed with a pipe wrench.

f. In the process of drilling, pay attention to the pressure gauge, and the pressure shall not be exceeded.

<> precautions for the construction of rotary drilling are very important, and every detail must be put in place to ensure the quality of the project.

a. Before drilling, adjust the drill pipe of the rotary drilling rig to keep it vertical, ensure the correct position, and prevent the pile displacement caused by the shaking of the drill pipe.

B, the initial drilling of the topsoil layer to ensure that the drill pipe is vertical, slow footage, reduce the shaking of the drill pipe, in the process of drilling, take measures to travel (when the casing is buried 30 50cm above the ground and cofferdam) to prevent rainwater from flowing into the hole.

c, the drilling construction is carried out continuously, such as for some reason when the machine is stopped in time to lift the drill, to prevent the town spike from stopping drilling for a long time, and the concrete is poured in time after the drilling is completed, if the interval is not poured in time for a long time, the hole of the borehole is covered with a cover plate cover to prevent safety accidents, and check whether the hole depth collapses before drilling again.

d. In the process of continuous construction and drilling, the drilling rig often observes the geological conditions of the drilling, and when entering the sand layer and gravel layer, the drilling speed must be strictly controlled, and the drilling speed must be slowed down at a low speed to prevent the hole from collapsing.

E, in the pouring process of technical personnel at any time to measure the height of the concrete surface in the hole, timely adjust the depth of the conduit burial, to ensure that the conduit embedding depth in any case shall not be less than 3m (in order to ensure that the concrete pouring section has enough pressure, to ensure the compactness of the concrete), control at about 3 6m, pile top plus filling meters.

F, the bottom of the hole cleaning by the supervision engineer inspection after the timely pouring of concrete, before the concrete pouring to the site of the commodity concrete for collapse detection, inspection of the factory with the vehicle data, the amount of cubic meters, qualified perfusion.

1. Installation and dismantling of drilling rigs.

1. Before the installation and dismantling of the drilling rig, the specific installation and dismantling process, scheme and technical safety measures must be formulated by the mechanical technicians according to the manufacturer's instruction manual, and strictly implemented.

2. The structural hoisting is commanded by professional hoisting personnel, and the corresponding wire rope is selected according to the specific weight. In the case of strong wind, heavy rain or unclear hoisting sight, it is strictly forbidden to install and disassemble the drilling rig.

3. When installing the drilling rig, it is necessary to ensure that the base of the drilling rig is horizontal and reliable.

Second, the inspection preparation before drilling.

1. The bolts everywhere should be complete, intact and tightened.

2. For drilling rigs with wire rope as the lifting medium, the condition and lubrication and maintenance of the wire rope should meet the requirements, and the appearance inspection of the wire rope should be carried out once a week, and a comprehensive and detailed inspection should be carried out at least once a week.

3. The oil level height of the main and auxiliary hydraulic oil tanks, turntables, power heads and fuel tanks of the drilling rig should be within the range of use specified in the manual, and should be added in time when it is insufficient. Check the quality of the oil, and if you find that the oil has deteriorated, you should replace it immediately.

4. The oil suction shut-off valve and the return shut-off valve should be in the open position.

5. The pipeline connection should be firm and there should be no oil leakage.

6. The remaining Lu Mingcha components are complete and intact, with reliable connection and good insulation.

3. Precautions for use.

1. After starting the engine, it should run at low speed for 3-5 minutes, and turn the power head under no load to facilitate the normal operation of the hydraulic system.

2. During the working process of the drilling rig, the operator should often observe whether the various instrument indications are normal, and stop the vehicle for inspection in time if there is any abnormal situation.

3. Special attention should be paid to the operation control handle in place during operation to avoid pressure impact on the system.

4. In the process of use, the pipe joints and oil pump fastening bolts of the natural pressure vibration should be checked to ensure that there is no oil leakage and air leakage.

5. The drilling rig must be commanded by a special person when walking, and special attention should be paid to dangerous sections such as high-voltage lines and puddles.

6. It is strictly forbidden to stand within the rotation range of the drilling rig.

7. After the transfer process of the drilling rig, the track must be stretched out immediately after getting off the flat truck.

8. When checking the hydraulic oil, it must be carried out only after the hydraulic oil has cooled.

1. Lofting positioning.

Before the start of the project, according to the axis and pile layout, a measurement and control network is established in the site, and then the center point of each pile position is measured and released according to the control network.

2. The rotary excavator is in place.

The drilling rig must be stable, circumferential, horizontal, and positioned, and the error between the center of the drill bit and the center of the pile position is not more than 10mm.

3. Bury the casing.

The diameter of the casing should be 200mm larger than the diameter of the pile hole, and the length should meet the requirements that the bottom of the casing enters the clay layer not less, the top of the casing is higher than the ground, the inclination of the casing burial is controlled within 1%, the deviation of the casing is not more than 30mm, and the surrounding of the casing is backfilled with clay, and the layers are tamped.

4. The rotary excavator is made into a hole.

Hole formation with modern tool rotary excavator: After the casing is buried and positioned, the lifting SR-250 rotary excavator is used for drilling, which has high torque, high rotation speed and high hole forming efficiency, which is suitable for drilling in the medium regolith layer.

When the drilling rig is in place, it should be re-measured and positioned, and mud wall protection should be used in the process of hole formation. Utilize the stirring effect of the drill bit to the soil in the drilling process to make natural slurry, the specific gravity of the mud can be adjusted according to the actual needs, the specific gravity of the mud is generally controlled in the construction process, the mud forms a mud skin on the surface of the hole wall in the circulation process, and the self-weight of it and the mud plays a protective role in the hole wall, prevents the hole wall from collapsing.

Through the hole-forming construction, the mud wall protection effect is relatively good, which can fully meet the needs of construction. The rubber brother specific gravity of mud can be adjusted by slag drum slag and the method of adding clean water to the hole, according to the actual construction needs, the specific gravity of mud is controlled above, and this is conducive to the stability of drilling and hole wall.