Rotary drilling and dry drilling construction slag removal device

Abstract

This application relates to a slag removal device for rotary drilling and dry drilling construction. A rotary drilling rod is rotatably connected to the drilling rig. A helical blade is fixed at the lower end of the rotary drilling rod. A slag cleaning rubber cover is set on the rotary drilling rod. The slag cleaning rubber cover includes the bottom plate and the side wall. The rotary drilling drill pipe runs through the bottom plate. Several groups of micro holes are opened through the bottom plate and the side wall. The limit ring is integrally fixed on the rotary drilling drill pipe. The upper end face abuts. In this application, a slag-removing rubber cover is set on the rotary drilling rod. The slag-removing rubber cover is composed of a bottom plate and a side wall. Microholes are opened on the bottom plate and the side wall. Therefore, when the rotary drilling drill rod is located inside the foundation pit, As the drilling rig continues to lift the rotary drill pipe, the slag-removing rubber cover filters the mud inside the foundation pit, the water in the mud continuously flows out from each group of micropores, and the sand in the mud is continuously trapped inside the slag-cleaning rubber cover , so the suspended sand in the mud inside the foundation pit can be filtered out, which ensures the quality of the pile foundation in the later construction process.

Description

technical field [0001] The present application relates to the field of rotary drilling, in particular to a slag removal device for rotary drilling and dry drilling. Background technique [0002] Rotary drilling is a construction technology suitable for hole-forming operations in building foundation engineering. It is widely used in foundation construction projects such as municipal construction, highway bridges, and high-rise buildings. It is suitable for dry (short spiral) or Hole forming operations in wet (rotary bucket) and rock formations (core drilling). [0003] Under the situation of environmental protection and sustainable development, the current rotary drilling and dry drilling construction has become the main construction technology of rotary drilling and bored pile construction. During the construction process of rotary drilling, the drilling rig drives the rotary drilling rod to continuously drill into the ground. During the drilling process, the groundwater le...

AI Technical Summary

Problems solved by technology

[0004] In view of the above-mentioned related technologies, the inventor believes that there are the following defects: in the construction of rotary drilling and dry drilling in sandstone formations, the excavation on the ground will continuously produce mud inside the foundation pit, which will affect surface water, groundwater and other surrounding environments. Pollution is difficult to control; suspended sand slag is fast and difficult to clean up, which can easily lead to difficulty in pouring pile foundation concrete in the later stage, and even the quality of pile foundation piles is unqualified, so there is room for improvement

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