Gathering impactor

Abstract

The invention discloses a gathering impactor. The gathering impactor comprises a drill rod hexagonal joint, a drill rod breather pipe and an impactor body, wherein the drill rod breather pipe is arranged on one side of the drill rod hexagonal joint, a connecting disc retainer ring is arranged at one end of the drill rod breather pipe, and a flow splitter is arranged on one side of the connecting disc retainer ring. The gathering impactor has the beneficial effects that impactors of multiple small calibers are gathered to complete large-caliber (the caliber can be infinitely increased, and basically is not affected by the manufacturing process) impact on broken rock and drilling, the reverse circulation process can be achieved through opening a hole, and the drilling efficiency is improved;and meanwhile, a small part of gas inside the flow splitter enters the interior of a jet air lift device through a slag return vent pipe, and then returns to the interior of the slag return vent pipeto form an injection vacuum state, carried crushed slag at the hole bottom is returned upwards to form a reverse circulation to clean slag, and the broken rock is timely and quickly returned into thehole, so that repeated crushing is reduced, the pore forming rate is improved, the returned slag is liable to be collected and processed, and environmental protection is facilitated.

Description

technical field [0001] The invention relates to the technical field of rock drilling, in particular to a cluster impactor. Background technique [0002] There are two types of large-diameter impactors on the market. One is an integrated impactor, which is expensive to manufacture and relatively high in use. The impact and vibration force is relatively strong, and the vibration damage to equipment is relatively large. Affected by the manufacturing process, the caliber is limited. The largest caliber on the market is 1.2 meters in diameter; the other is the cluster impactor, most of which use positive circulation or partial reverse circulation (the impactor is partially positive circulation, only Reverse circulation can only be realized when the submergence ratio is reached and there is water in the hole), the hole diameter is large, the slag return is difficult, the rock is repeatedly broken, the efficiency is low, and the loss is large. Environmental friendly. [0003] Due...

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the deficiencies of the existing technology, a cluster impactor is proposed to solve the problem of low hole forming efficiency and the failure of the broken rock to return in time when the existing cluster impactor is used for large-diameter drilling, resulting in repeated crushing and difficult return of slag. Collection and disposal are not conducive to environmental protection

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