Choosing a suitable pneumatic water well drilling rig requires comprehensive consideration of multiple factors, and the following are some key points:
Rock hardness:
For rock formations with high hardness, such as granite, quartzite, etc., it is necessary to choose pneumatic water well drilling machines with high impact energy and good drill bit wear resistance to ensure effective rock fragmentation and improve drilling efficiency. For example, some drilling rigs with high-pressure, high flow air compressors can provide powerful impact power and are suitable for drilling in hard rocks.
Stratigraphic structure: If the geological structure is complex, with many fractures, faults, or unstable interlayers, the stability and adaptability of the drilling rig need to be considered. A drilling rig with good guidance and anti inclination function can better cope with this situation, avoiding drilling deviation or collapse.
Depth of water well
Shallow well:
For shallow water wells with a depth of less than tens of meters, a typical small pneumatic water well drilling rig can meet the requirements. This type of drilling rig has a simple structure, easy operation, and low cost, and can quickly complete shallow well drilling operations.
Deep well: When the depth of a water well exceeds hundreds or even hundreds of meters, it is necessary to choose a pneumatic water well drilling rig with high power, high drill pipe strength, and good slag discharge capacity. At the same time, in order to ensure the verticality and stability of the borehole, the drilling rig should also be equipped with advanced inclinometer and correction devices.
Routine maintenance
1. Check the air source:
Before starting up every day, check the working status of the air compressor to ensure that the air pressure is stable and within the range required by the drilling rig. At the same time, check whether there is any air leakage in the trachea. If there is any leakage, repair or replace damaged components in a timely manner.
2.Cleaning the drilling rig:
After each shift, the surface of the drilling rig should be promptly cleaned of dust, oil stains, and debris to maintain its cleanliness. Especially at the joints of drill bits, drill rods, and the heat dissipation ports of the machine body, it is necessary to ensure that there are no debris blockages to avoid affecting the normal operation of the drilling rig.
3.Check the connecting components:
Before and after each shift, carefully check whether the connecting bolts and nuts between the various components of the drilling rig are loose. If any looseness is found, it should be tightened in a timely manner. Special attention should be paid to the connection between the drill rod and the drill bit, the connection between the drill rods, and the connection between the drilling rig and the air compressor to prevent safety accidents or affect drilling efficiency due to weak connections.
regular maintenance
1. Replace lubricating oil:
According to the instructions of the drilling rig, regularly replace the lubricating oil of each lubrication part of the drilling rig. Generally speaking, a new drilling rig should undergo its first oil change after running for a period of time (such as 50-100 hours), and then change it every certain working time (such as 200-300 hours) thereafter. When replacing lubricating oil, thoroughly clean the oil tank and lubrication system to ensure that there are no impurities left.
2.Air filter maintenance:
The air filter is a key component that ensures the quality of air entering the air compressor and needs to be cleaned or replaced regularly. Generally, every 50-100 hours of work, the filter element of the air filter should be cleaned, and compressed air can be used to blow away the dust on the filter element from the inside out; If the filter element is damaged or severely clogged, it should be replaced with a new one in a timely manner to ensure smooth air intake of the air compressor and improve work efficiency.
3.Check worn parts:
Every certain working time (such as 100-200 hours), inspect the drill bit, drill rod, impactor and other easily worn parts of the drilling rig. Observe the wear of the drill bit, such as severe wear of the alloy teeth and deformation of the drill bit body, and replace the drill bit in a timely manner; Check whether the drill rod has defects such as bending, wear, cracks, etc. If there are any problems, the drill rod should be repaired or replaced in a timely manner; At the same time, check the wear of the piston, cylinder and other components of the impactor, and repair or replace them if necessary.
Key component maintenance
1. Air compressor maintenance:
The air compressor is the power source of the pneumatic water well drilling rig, and its maintenance is crucial. In addition to regularly replacing the lubricating oil and air filter element, it is also necessary to regularly check the tightness of the belt of the air compressor. If the belt is too loose, it will cause the speed of the air compressor to decrease, affecting the air pressure output. The belt tension should be adjusted in a timely manner; At the same time, check the cooling system of the air compressor to ensure that the cooling water pipeline is unobstructed, the cooling water pump is working properly, and prevent damage to the air compressor due to overheating.
2. Control system maintenance:
The control system of the drilling rig includes various components such as valves, pressure gauges, sensors, etc., and the working status of these components should be checked regularly. Ensure that the valve switch is flexible and there is no leakage; The pressure gauge indicates accurately. If the pressure gauge reading is found to be inaccurate, it should be calibrated or replaced in a timely manner; Sensors should be kept clean and free of impurities such as oil and dust to ensure accurate signal transmission and normal operation of the control system.
