What behaviors lead to excessive fuel consumption during daily operation of rotary drilling rigs?
1. Prolonged Idling#heavy duty auger#
Idling refers to the state where the engine runs idle, meaning the rotary drilling rig is not in operation, but the engine is constantly running. This state is very fuel-intensive. For example, for a drilling rig that operates for 2000 hours per year, if the idling speed reaches 40%, and assuming that idling consumes approximately 3.7 liters of fuel per hour, this would result in an extra 20,000 yuan in fuel costs per year, which is a significant expense. Our field investigations have found that in daily operation, many construction sites have rotary drilling rigs idling for 40-50% of their capacity, thus directly "burning money."
2. Drilling Techniques#heavy duty auger#
Controlling Drilling Depth: When drilling very deep pile holes, try to use a segmented drilling method, drilling in three layers: top, middle, and bottom. Drilling from top to bottom in one go increases the working area, reduces the power of the rotary drilling rig due to the increased range, lowers work efficiency, and consumes more fuel.
3. Rotation Angle
In daily operation, we generally recommend that the rotation angle of the rotary drilling rig should not exceed 60°, with a range of 30° to 45° being more suitable. The smaller the angle, the faster the rotation, the higher the output, and the lower the fuel consumption. Additionally, the tire pressure of the wheeled rotary drilling rig also affects fuel consumption. Insufficient tire pressure increases the running resistance of the rotary drilling rig, increasing fuel consumption. Proper use of radial tires can save up to 10% of fuel consumption.
4. Avoiding Pressure Drop Under Heavy Loads
When the load of the sand or rocks being drilled is too heavy, the rotary drilling rig will enter a pressure drop state. Assuming there are 6 minutes of pressure drop in a 10-hour workday, avoiding pressure drops could save approximately 840 liters of diesel fuel annually. Problems that drilling cannot handle can be addressed by using secondary or tertiary drilling methods; otherwise, it wastes both the machine and fuel, resulting in greater losses than gains. Furthermore, learning to use the economy mode, although it reduces engine speed and thus workload, significantly improves fuel efficiency. This not only reduces fuel consumption but also, even if the work period is extended by a few days, lowers operating costs and increases profits.#heavy duty auger#
