Drilling machine is used for drilling key machinery and equipment, in the application of drilling machine, safety is the most important, the following to understand the drilling machine in drilling some common safety problems: 1. Spot shot inclinometer must be carried out before the square drilling tool is drilled and does not receive a single strip. The inclinometer is carried out in the middle of tripping, and the theme activity drilling equipment is carried out every 1-2 minutes, with a spacing of not less than 2 meters. 2, drilling often check the weight indicator, pump pressure gauge standard value, found that the suspension weight is reduced, pump pressure is reduced immediately search for the reason, first find the road surface reason, road surface reason removal has not recovered, immediately pull out for inspection. 3. During drilling, attention should be paid to the amount of sand on the vibrating screen. If gravel increases, it should be observed whether the sand sample collapses. If it is found that the sand is reduced and the drilling fluid characteristics are changed, and the rock carrying capacity is poor, certain effective measures should be taken immediately to solve the problem. 4. After tripping in, the drill bit leaves the well 2-3 meters lower (usually a single bar is mentioned) and the pump is started. When the pump is started, the diesel engine speed is 800-900 r/min. The pump pressure at the edge of the riser rises to 5CPA to pick up the pump, and then starts after lowering. The game will be played several times more. After the drilling fluid is returned from the wellbore, the pump will continue to run. The speed ratio of the diesel engine is adjusted to the speed ratio during drilling 1150-1200 r/min. After the pump pressure is stable, the drill bit will lower the stop well at a slow speed, the extrusion will rotate slowly and stably to touch the geological structure, the cone bit will run for 30 minutes, the PDC bit well will be drilled for 0.3 meters with a low shape design, and then all drilling will be normal according to the main drilling parameters of the design scheme. 5. Drill delivery: The spiritual essence should be centralized, and it can be delivered by point or slip. It is stipulated that the drilling shall be well-proportioned, and the weight indicator shall be seen. In addition, the rate of discharge of the barrel or the big rope shall be checked to ensure that the drilling pressure is closely followed and the drilling is not slipped. Do not charge the bit to start the disc. 6. Before receiving a single strip, the drilling pressure should be slowly reduced to make the drill have a larger expansion space, reduce the overpressure of the drill bit, and increase the application of the drill bit. Above is a detailed explanation of some common safety problems of drilling machine equipment during drilling. Mastering this professional knowledge is very useful for many people.

At this stage, rotary drilling rigs have been widely used in new piling projects. With the advantages of rotary drilling rigs in piling work, more and more people are gradually looking for rotary drilling rigs. However, many people will easily confuse rotary drilling rigs with other mechanical equipment, such as excavators, rotary drilling rigs, down-the-hole drilling rigs, geological exploration drilling rigs, rotary jet grouting piling machines, horizontal directional drilling rigs, etc, here I will share with you the difference between rotary drilling rig and rotary drilling rig. 1. use is different. 1. Rotary drilling rig: used for drilling rock layers with rock strength index f≤ 6 in open-pit coal mines, and can also drill hard interlayer rocks with f = 7-11. When drilling, increase the rotating torque and shaft working pressure to make the twist drill rotate and walk the knife to exercise, to laser cut the rock. 2. Rotary drilling rig: construction machinery and equipment suitable for hole-forming work in construction foundation engineering projects. The key is suitable for the construction of gravel soil, cohesive soil, silty soil and other soil layers, and is widely used in various foundations and foundation construction sites such as bored piles, continuous walls, and foundation reinforcement. 2. characteristics are different 1. Rotary drilling rig: used for drilling rock layers with rock strength index f≤ 6 in open-pit coal mines, and can also drill hard interlayer rocks with f = 7-11. When drilling, increase the rotating torque and shaft working pressure to make the twist drill rotate and walk the knife to exercise, to laser cut the rock. 2. Rotary drilling rig: hydraulic crawler telescopic chassis, autonomous take-off and landing folding mast, telescopic joint drilling tool, automatic flatness identification and adjustment, depth digital indication, etc. The whole mechanical control generally adopts hydraulic leading control and load sensor, which has the characteristics of light and comfortable actual operation. The two main and auxiliary hoisting machines can be applied to various conditions of the construction site. 3. other levels 1. Move the method is not the same Some models and specifications of rotary drilling rigs cannot move autonomously, while others are footstep-type automobile chassis that can move autonomously; Rotary drilling rigs generally use hydraulic crawler telescopic car chassis, which can move autonomously; 2. The available natural environment is different Rotary drilling rig is mainly used for drilling gun holes for mining and coal mining, and can also be used for drilling anchor cable holes, exploration and drainage outlets, coal bed methane extraction holes and coal roadway irrigation holes; Rotary drilling rigs are mainly used for the construction of soil layers such as gravel soil, cohesive soil and silty soil, and for the construction of various foundations and foundation projects such as bored piles, continuous walls and foundation reinforcement; 3. The solution for mud is different Rotary drilling machine mud is side drilling side to create mud, waste slurry more and more; The mud of rotary drilling rig is made in advance and then drilled. The circulation system is applied, and the more it is used, the less it is used; 4. Model and specification Rotary drilling rigs are divided into portable hydraulic rotary drilling rigs and slide-type hydraulic rotary drilling rigs according to different driving methods; Rotary drilling rigs are divided into small servers, medium machines and medium machines according to different output power; Although only one word apart, but the two are very different. Different mechanical equipment is applied to different industries. This point must be firmly grasped. Random selection of equipment will not only lead to resource consumption but also continue to cause certain damage to engineering projects. Therefore, when selecting equipment for one's own engineering construction site, one must see clearly what one must have, and only when one chooses correctly can one solve engineering projects faster and stronger.

Drilling machine is used for drilling key machinery and equipment, in the application of drilling machine, safety is the most important, the following to understand the drilling machine in drilling some common safety problems: 1. Spot shot inclinometer must be carried out before the square drilling tool is drilled and does not receive a single strip. The inclinometer is carried out in the middle of tripping, and the theme activity drilling equipment is carried out every 1-2 minutes, with a spacing of not less than 2 meters. 2, drilling often check the weight indicator, pump pressure gauge standard value, found that the suspension weight is reduced, pump pressure is reduced immediately search for the reason, first find the road surface reason, road surface reason removal has not recovered, immediately pull out for inspection. 3. During drilling, attention should be paid to the amount of sand on the vibrating screen. If gravel increases, it should be observed whether the sand sample collapses. If it is found that the sand is reduced and the drilling fluid characteristics are changed, and the rock carrying capacity is poor, certain effective measures should be taken immediately to solve the problem. 4. After tripping in, the drill bit leaves the well 2-3 meters lower (usually a single bar is mentioned) and the pump is started. When the pump is started, the diesel engine speed is 800-900 r/min. The pump pressure at the edge of the riser rises to 5CPA to pick up the pump, and then starts after lowering. The game will be played several times more. After the drilling fluid is returned from the wellbore, the pump will continue to run. The speed ratio of the diesel engine is adjusted to the speed ratio during drilling 1150-1200 r/min. After the pump pressure is stable, the drill bit will lower the stop well at a slow speed, the extrusion will rotate slowly and stably to touch the geological structure, the cone bit will run for 30 minutes, the PDC bit well will be drilled for 0.3 meters with a low shape design, and then all drilling will be normal according to the main drilling parameters of the design scheme. 5. Drill delivery: The spiritual essence should be centralized, and it can be delivered by point or slip. It is stipulated that the drilling shall be well-proportioned, and the weight indicator shall be seen. In addition, the rate of discharge of the barrel or the big rope shall be checked to ensure that the drilling pressure is closely followed and the drilling is not slipped. Do not charge the bit to start the disc. 6. Before receiving a single strip, the drilling pressure should be slowly reduced to make the drill have a larger expansion space, reduce the overpressure of the drill bit, and increase the application of the drill bit. Above is a detailed explanation of some common safety problems of drilling machine equipment during drilling. Mastering this professional knowledge is very useful for many people.

One. Analysis of percussion drill Percussion drilling machine belongs to a kind of hole-forming mechanical equipment of "hard and soft eating together", which is basically suitable for various geological environment conditions, from cohesive soil, sandy soil to gravel layer, river pebbles, boulders to soft rock and hard rock. The percussion drill is especially suitable for the hole formation of rock-socketed piles in hilly terrain in mountainous areas. When the surface is soft soil, the drilling rig can be firmly fixed according to the backfill soil layer. The impact drill can also be assembled independently according to the specific conditions of the construction site, and has the characteristics of simple actual operation. In the construction and operation process of the drilling rig, the impact drill is better than the rotary and rotary drilling rig. If only from the geological environment standard consideration, does not take into account the construction progress, economic benefits, impact drill can be applied. In terms of pore-forming rate, in a special geological environment, the impact drill is not as good as the rotary and rotary drilling rigs. In terms of the cost per linear meter of double-hole drilling, the impact drill is the largest, the rotary drill is the least, and the rotary drilling rig is close to the two. II. Analysis of Rotary Drilling Rig Regardless of the positive circulation system or sub-circulation system in the rotary drilling rig, it is suitable for cohesive soil, soil layer containing a small amount of gravel, river pebble, and soft rock, and is not suitable for many river pebble layers and hard rock layers. In which the positive circulation system drilling rig is also suitable for silty sand, fine medium coarse sand layer. If the index value of mud conditioning is insufficient or the drilling speed is too fast, it may lead to the safety accident of hole collapse. Rotary drilling rigs are especially suitable for friction pile drilling in plain areas with thick alluvium in inland areas and coastal urban beach areas. From the analysis of the hole forming rate, the rotary drilling machine is faster than the impact drilling machine, which is not as good as the rotary drilling machine. From the analysis of the project budget, the rotary drilling rig is the most economical development of the three kinds of drilling rigs, the most cost-effective. Three. Impact and Insufficiency of Rotary Drilling Rig Comprehensive above, the characteristics of impact drilling machine and rotary drilling machine are that their own machinery and equipment are low in price and simple in actual operation. After decades of selection in the sales market, they have already become popular mechanical equipment for pile foundation hole formation. However, with the development and development trend of social development, some insurmountable defects have gradually emerged: environmental pollution Slurry hole piles and floating particulate matter must be slurried, and the slurry will cause air pollution on the spot and the surrounding environment, which cannot meet the requirements of ecological environment protection and safe and civilized construction that are increasingly valued by the development of today's society. Circulation system mud, sediment must be mud pit, which requires a large construction site. Pore-forming speed is relatively slow According to all normal construction quality regulations and general geological environment geological structure conditions, the rotary drilling machine punches 8-lOm up and down every day, while the drilling rate of impact electric drilling slows down. In addition to the strong adaptability of the impact drill, the rotary drill can not cope with the more hard geological structure other than strong weathering.

At this stage, rotary drilling rigs have been widely used in new piling projects. With the advantages of rotary drilling rigs in piling work, more and more people are gradually looking for rotary drilling rigs. However, many people will easily confuse rotary drilling rigs with other mechanical equipment, such as excavators, rotary drilling rigs, down-the-hole drilling rigs, geological exploration drilling rigs, rotary jet grouting piling machines, horizontal directional drilling rigs, etc, here I will share with you the difference between rotary drilling rig and rotary drilling rig. 1. use is different. 1. Rotary drilling rig: used for drilling rock layers with rock strength index f≤ 6 in open-pit coal mines, and can also drill hard interlayer rocks with f = 7-11. When drilling, the rotating torque and shaft working pressure are released, so that the twist drill can rotate and walk the knife to cut the rock with laser. 2. Rotary drilling rig: construction machinery and equipment suitable for hole-forming work in construction foundation engineering projects. The key is suitable for the construction of gravel soil, cohesive soil, silty soil and other soil layers, and is widely used in various foundations and foundation construction sites such as bored piles, continuous walls, and foundation reinforcement. 2. characteristics are different 1. Rotary drilling rig: used for drilling rock layers with rock strength index f≤ 6 in open-pit coal mines, and can also drill hard interlayer rocks with f = 7-11. When drilling, the rotating torque and shaft working pressure are released, so that the twist drill can rotate and walk the knife to cut the rock with laser. 2. Rotary drilling rig: hydraulic crawler telescopic automobile chassis, autonomous take-off and landing folding drill mast, telescopic joint drilling tool, automatic flatness identification and adjustment, depth digital indication, etc. The whole mechanical control generally adopts hydraulic plug-in control and load sensor, which has the characteristics of light and comfortable actual operation. The two main and auxiliary hoisting machines can be applied to various conditions of the construction site. 3. other levels 1. Move the method is not the same Some models and specifications of rotary drilling rigs cannot move autonomously, while others are footstep-type automobile chassis that can move autonomously; Rotary drilling rigs generally use hydraulic crawler telescopic car chassis, which can move autonomously; 2. The available natural environment is different Rotary drilling rig is mainly used for drilling gun holes for mining and coal mining, and can also be used for drilling anchor cable holes, exploration and drainage outlets, coal bed methane extraction holes and coal roadway irrigation holes; Rotary drilling rigs are mainly used for the construction of soil layers such as gravel soil, cohesive soil and silty soil, and for the construction of various foundations and foundation projects such as bored piles, continuous walls and foundation reinforcement; 3. The solution for mud is different Rotary drilling machine mud is side drilling side to create mud, waste slurry more and more; The mud of rotary drilling rig is made in advance and then drilled. The circulation system is applied, and the more it is used, the less it is used; 4. Model and specification Rotary drilling rigs are divided into portable hydraulic rotary drilling rigs and slide-type hydraulic rotary drilling rigs according to different driving methods; Rotary drilling rigs are divided into small servers, medium machines and medium machines according to different output power; Although only one word apart, but the two are very different. Different mechanical equipment is applied to different industries. This point must be firmly grasped. Random selection of equipment will not only lead to resource consumption but also continue to cause certain damage to engineering projects. Therefore, when selecting equipment for one's own engineering construction site, one must see clearly what one must have, and only when one chooses correctly can one solve engineering projects faster and stronger.

1. According to the drilling method of drilling rig (1) Impact drilling rig, such as galvanized steel wire rope impact drilling rig (drilling rig), vibration drilling rig, etc. (2) Rotate the drill, such as the drill used in the rotary drill. (3) Mine driving force drilling rigs, turbocharged drilling rigs, spiral drilling rigs, electric drilling rigs and other mine electric drilling rigs. 2. Drilling depth by drilling rig (1) Large deep water well drilling rig. The diameter of the twist drill used is 114mm, the nominal drilling depth exceeds 7000 meters, and the load of the larger lifting hook exceeds 4,500kN. (2) Deep water well drilling rig. The diameter of the drilling tool is 114mm, the nominal drilling depth is 4000-7000 meters or more, and the load of the larger lifting hook is 2250-4505kN or more. (3) Medium-deep well drilling rig. The diameter of the applied twist drill is 114mm, the nominal milling depth is 1500-4000 meters or more, and the larger lifting hook load is 900-2255kN or more. 3. According to the mechanical and electrical equipment of the drilling rig (1) The drilling rig driven by a diesel engine uses the diesel engine as the driving force according to the gear transmission or hydraulic transmission system. (2) Communication driven drilling rig, applicable to oil and gas fields with industrial production power network (3) The drilling rig is driven by alternating current, and the working module is driven by a DC motor. 4. According to the driving method of drilling rig (1) independent drive. Each working equipment is driven by a generator set of different specifications, which is the key to power engineering drive. Its transmission is simple and easy to install, but the output power utilization rate is low, and the total quality of the machine equipment is large. (2) Unified drive rig. The three working modules of hoisting winch, drilling pump and wheel disc are driven by the same hydraulic power unit. Most rigs apply this planning scheme. The unified drive can also contain only one drilling pump, while the other drilling pump is independently driven. The integrated drilling rig has a high utilization rate of driving force and can adjust each other when the engine knocks, but the transmission system is complicated, the installation and adjustment are inconvenient, and the transmission system has low high efficiency. (3) Combined drive drilling rig. The output power is comprised between the individual driver and the unified driver. There are two choices for the three working machines. The driving force utilization rate of the drilling rig is higher than that of a single drive, and the reduction ratio is convenient for unified driving. The 2 sets of working machines can also be installed in different aspect ratios and decentralized parts.

1. drilling type: Drilling and drilling application track plate, the application of double bottom sand bucket with friction drilling tools, drilling relatively stable friction resistance of small geological structure, general geological strength within 400 kPa, such as mud layer, sand and sand layer, according to the track plate rotation drilling, can reduce friction resistance and improve the drilling machine speed. 2. crushing type: Crushing drilling shall be carried out by cutting picks, and most of them shall be carried out by double-bottom rock drilling bucket. According to geological strength, friction resistance or machine locking drilling tools can be equipped to drill gravel, mudstone, slate, diabase and vertical weathered layer with a strength of 500 kPa to 1000 kPa, and the crushing drilling shall be carried out to aluminum alloy points on cutting picks according to pressure. 3. rotary type Double-bottom sand fishing and double-bottom rock drilling bucket can be applied, and they can also be used in conjunction with bao'e teeth. because the types of geology are different, the drilling method changes with each other. for example, when pebbles are arranged irregularly, they cannot be drilled and broken. rotary drilling can be used, the drilling tool can be hung with the main coil, the pebbles can be rotated with the tip of the drilling bucket teeth, and the drilling bucket can be released in fluctuation, this practical operation method is to bypass the strength and vibration of the pebble. 4. grinding type: The rock layer measured by one-week compressive strength strength is from several Mpa to several tens of Mpa. Generally, the rock end bearing pile is ground into rock according to the barrel drill ring cutting, or the tooth shaft drill is ground into rock. In addition, the type, strength, ductility and crack probability are not removed according to the type, strength, ductility and crack of the rock layer.

The relatively perfect iron roughneck, full-automatic catwalk machine, full-automatic pipe groove machine, full-automatic slip, full-automatic elevator and drill floor pushing and supporting mechanical arm in the automation technology drilling rig are the basic equipment of the intelligent drilling rig. There is still a great improvement to improve the indoor space. In addition, integration must be completed, I .e. one person can complete remote control of all the equipment in the driller's room.

Rotary drilling rig, as a kind of hole-forming machinery and equipment that has been accepted by everyone in recent years, has been widely recognized in the construction of underground foundation engineering.

Attention should be paid to the amount of sand on the vibrating screen during drilling. If gravel increases, it should be observed whether the sand sample collapses. Whether the drilling fluid is found to have reduced sand characteristics change, carrying capacity is poor, should immediately take some effective measures to solve.