Views: 0 Author: Site Editor Publish Time: 2025-09-12 Origin: Site
The drill bucket of a rotary drilling rig is a key component for construction efficiency, and its selection directly depends on geological conditions. Choosing the right second-hand drill bucket can not only reduce costs but also avoid problems such as stuck drill and low efficiency. The following starts from six common geological types and discusses the key points for choosing a drill bucket.
1. Clay layer: The clay layer is prone to adhering to the drill bucket, so a double-bottom drill bucket with a flow guide groove should be selected. Its bottom opening and closing design can reduce clay adhesion, and the diversion groove can quickly discharge soil, increasing the drilling speed.
2. Sand layer: The sand layer is loose and prone to collapse. It is preferred to use a sand hopper. The bucket body has strong sealing performance and the bucket door closes tightly, which can effectively prevent sand and soil leakage. It is suitable for both dry and wet digging operations.
3. Pebble layer: Pebbles are hard and have large particle sizes, so rock buckets should be selected. The bucket teeth are made of wear-resistant alloy material, and the bucket body is thickened to withstand impact loads and prevent premature wear.
4. Moderately weathered rock strata: The rock strata have medium strength. It is recommended to use a truncated drill bucket. The cutting teeth are arranged in a spiral pattern, which can break rocks layer by layer. Combined with high-pressure air for slag removal, it is suitable for drilling in medium-hardness rock layers.
5. Silt layer: Silt has high fluidity and low bearing capacity, so wide-mouthed double-door drill buckets should be selected. The wide bucket opening facilitates quick soil removal. The double-door design reduces soil residue during unloading and prevents silt blockage.
6. Miscellaneous fill soil layer: Complex composition containing bricks and concrete blocks, heavy rock buckets are required. The bucket body has strong rigidity and a large gap between the bucket teeth, which can deal with the jamming of impurities and reduce equipment wear and tear.
In conclusion, when choosing a second-hand drill bucket, it is necessary to first clarify the geological type, with particular attention paid to the material of the bucket body, the form of the bucket teeth, and the design of the slag discharge. Only by combining construction experience to determine the degree of wear of the drill bucket can low-cost and efficient construction be achieved.
