CN217055005U - Swinging rotary mud reverse circulation down-the-hole hammer drill - Google Patents

Abstract

The utility model discloses a rotatory mud reverse circulation down-the-hole hammer drill of swing. The drilling machine consists of a drilling machine using a telescopic drill rod, a cluster down-the-hole hammer and an air compressor. The drill drives the cluster down-the-hole hammer to swing and rotate, the telescopic drill rod quickly lifts the drill bit, slag discharge is in a mud gas-lift reverse circulation mode, and a mud protection wall prevents a covering layer from collapsing holes without the need of follow-up of a protection cylinder. The utility model overcomes the defects of the prior art that the air circulation slag discharge of the down-the-hole hammer drill is easy to collapse, the casing must be followed, and the geological requirements are harsh; the drilling machine has the advantages of small type, low equipment cost, no need of casing follow-up for mud wall protection, ultra-fast drilling speed of hard rock, ultra-low comprehensive cost and capability of constructing ultra-large diameter rock-entering pile holes of ultra-deep covering layers, and the telescopic drill rod is matched with the down-the-hole hammer for drilling.

Description

Swinging rotary mud reverse circulation down-the-hole hammer drill

Technical Field

The utility model relates to a bore hammer rig technical field tied in a bundle dives, it is a rotatory mud reverse circulation down-the-hole hammer rig swings that says so more specifically.

Background

The existing telescopic drill rod down-the-hole hammer drilling machine adopts air circulation as deslagging, the air circulation is used for discharging drilling slag to scour the hole wall to cause hole collapse, a mud retaining wall function is not provided, a retaining cylinder is required to follow, the retaining cylinder is slow in following speed and high in cost, the comprehensive construction speed is reduced, the construction cost is greatly increased, the defect that a deep covering layer rock-entering drilling pile cannot be constructed exists, and the large-area popularization cannot be realized.

Therefore, the development of a mud circulation down-the-hole hammer drilling machine which has the advantages of low equipment manufacturing cost, large drilling diameter, no need of a pile casing to follow, high construction speed and low cost and can construct a large-diameter ultra-deep overburden rock-entering drilling pile is needed.

Disclosure of Invention

The utility model aims at providing a swinging rotary slurry reverse circulation down-the-hole hammer drill which is a basement rock soil drilling machine, and the equipment of the utility model can be used for drilling a large-diameter ultra-deep covering layer into rock; the defects that the full casing follow-up cost of the existing telescopic drill rod down-the-hole hammer drilling machine is high and an ultra-deep covering rock-entering drilling pile cannot be constructed are overcome.

In order to realize the purpose, the technical scheme of the utility model is that: a swinging rotary mud reverse circulation down-the-hole hammer drill is characterized in that: the device comprises a cluster down-the-hole hammer, a pile frame, a power head, a drill rod, a slurry discharge pipe, an air inlet pipe, an air outlet pipe, a steel wire rope and a drilling machine;

the drill rod is a multilayer telescopic drill rod, the power head provides torque for the drill rod, and the drill rod swings and rotates at 180 degrees left and right during drilling;

the slurry discharge pipe enters the drill hole and is connected with the cluster down-the-hole hammer;

the air inlet pipe and the air outlet pipe enter a drill hole and are connected with the cluster down-the-hole hammer;

in the scheme, each single down-the-hole hammer on the cluster down-the-hole hammer is provided with a closed outer sleeve, all exhaust of the collected down-the-hole hammers is discharged into an exhaust channel in the cluster down-the-hole hammer and is discharged into the atmosphere through an exhaust pipe, and no exhaust hole is formed in the bottom of the down-the-hole hammer; the down-the-hole hammer exhausts air and cannot leak into mud in a pile hole, and a slag and mud sucking pipe is arranged in the cluster down-the-hole hammer.

In the scheme, the drilling machine is a drilling machine using a telescopic drill rod or a drilling machine simply modified by a crawler crane, the structure of the drilling machine modified by the crawler crane comprises the crawler crane, the pile frame and the power head, and a large-tonnage lifting winch is modified;

in the scheme, the swinging rotary mud reverse circulation down-the-hole hammer drill adopts a mud wall protection method to protect the hole wall without the need of a pile casing to follow in the process of drilling the covered geological hole;

the utility model has the advantages of as follows:

(1) the utility model discloses collect a bundle down-the-hole hammer mud circulation row sediment, the overburden is guaranteed not to collapse the hole by the mud dado, does not need the casing to follow, can construct the ultra-deep overburden rock-entering wellhole of major diameter, has avoided huge steel casing follow-up cost, flexible drilling rod cooperates the down-the-hole hammer drilling hard rock operation, the construction speed is ultrafast, the comprehensive construction cost is ultralow, equipment adapts to all rock-entering drilling projects;

(2) the utility model has small bit pressure, the bit pressure is provided by the drilling tool, the drill rod can not be pressurized, the length of the drill rod is not limited, the drilling depth is very deep, and the drilling tool can be used for the drilling construction of ultra-deep pile holes;

(3) the utility model has the advantages that the drilling pressure and torque of the down-the-hole hammer are small, and the model of the drill used in cooperation with the down-the-hole hammer is small, so that the manufacturing cost of the construction equipment of the large-diameter ultra-deep well hole is greatly reduced;

(4) the utility model discloses it is lower to change into down-the-hole hammer rig cost with the track loop wheel machine.

Synthesize above content, the utility model provides a rotatory mud reverse circulation down-the-hole hammer drilling equipment cost of swing is low, and overburden drilling does not need the casing to follow up, and flexible drilling rod cooperation down-the-hole hammer goes into rock drilling speed ultrafast, can construct the drilling of rock is gone into to super deep overburden super large diameter, and comprehensive construction cost is ultralow.

Drawings

FIG. 1 is a schematic structural view of a crawler crane according to the present invention;

in the figure, 1-a cluster down-the-hole hammer, 2-a pile frame, 3-a power head, 4-a drill rod, 5-a slurry discharge pipe, 6-an air inlet pipe, 7-an exhaust pipe, 8-a steel wire rope and 9-a drilling machine are arranged;

fig. 2 is a schematic view of the rotary drilling rig of the present invention;

in the figure, 1-cluster down-the-hole hammer, 2-pile frame, 3-power head, 4-drill rod, 5-slurry discharge pipe, 6-air inlet pipe, 7-exhaust pipe, 8-steel wire rope and 9-drilling machine.

Detailed Description

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings, which are not intended to limit the present invention, but are merely exemplary. While the advantages of the invention will be clear and readily appreciated by the description.

With reference to the accompanying drawings: a swing rotary mud reverse circulation down-the-hole hammer drill and a use method thereof comprise a cluster down-the-hole hammer 1, a pile frame 2 power head 3, a drill rod 4, a mud discharging pipe 5, an air inlet pipe 6, an exhaust pipe 7, a steel wire rope 8 and a drill 9;

the power head 3 of the utility model drives the drill rod 4 to swing and rotate at 180 degrees, so as to prevent the slurry discharge pipe 5, the air inlet pipe 6 and the exhaust pipe 7 from twisting with the drill rod 4, and high-pressure air enters the cluster down-the-hole hammer 1 through the air inlet pipe 6 to impact rock drilling; the outer cover wraps the single down-the-hole hammer in the cluster down-the-hole hammer 1, the down-the-hole hammer is collected to exhaust air, the exhaust air enters the exhaust pipe 7 and is exhausted into the atmosphere, the bottom of the down-the-hole hammer is not exhausted, the air cannot leak into drilling mud to cause hole collapse, meanwhile, the exhaust back pressure of the down-the-hole hammer is reduced, and the down-the-hole hammer is kept to have the maximum energy efficiency;

the feeding force of the down-the-hole hammer drill bit can depend on the dead weight of the drilling tool, the drill rod can not be pressurized, the torque required by the rotation of the drill bit is smaller, the rotating speed is very low, and the down-the-hole hammer drill bit is suitable for drilling machines simply modified by various crawler cranes; the remanufacturing content is as follows: increasing the single-rope lifting force of a main winch of the crane, installing a pile frame 2 and installing a power head 3; the modified drill rod 4 provides torque, the crane lifts and lowers the drill rod 4 and the bunching down-the-hole hammer 1, and the crane is matched with air compressor equipment, so that the drilling machine has a comprehensive drilling function of the mud reverse circulation down-the-hole hammer;

part of gas in the gas inlet pipe 6 is injected into a slag suction pipe in the cluster down-the-hole hammer 1 to form gas-lift slurry reverse circulation, the slurry carries drilling slag and enters a slurry treatment system through a slurry discharge pipe 5, the treated slurry returns to a drill hole to keep a water head to protect the hole wall from collapsing, and when geological drilling is carried out with a covering layer, the casing follow-up is not needed, so that huge casing follow-up cost is saved;

in order to realize the utility model discloses a second purpose is in order to provide a rotatory mud reverse circulation down-the-hole hammer of swing dig the use method of rig soon, its characterized in that: comprises the following steps of (a) carrying out,

the method comprises the following steps: assembling;

communicating the slurry discharge pipe 5 with the cluster down-the-hole hammer 1 and a ground slurry treatment system;

connecting an air inlet pipe 6 and an air outlet pipe 7 with the cluster down-the-hole hammer 1, and communicating the other end of the air inlet pipe 6 with an air compressor;

connecting the cluster down-the-hole hammer 1 with a drill rod 4;

step two: hoisting;

the steel wire rope 8 suspends the drill rod 4 and other drilling tools to a drilling station;

step three: drilling;

driving the cluster down-the-hole hammer 1 to swing and rotate at 180 degrees left and right;

starting an air compressor to supply air, enabling the cluster down-the-hole hammer 1 to impact rock drilling, injecting high-pressure air into a slag suction pipe in the cluster down-the-hole hammer 1 to form mud gas-lift reverse circulation, discharging mud carrying drilling slag through a mud discharge pipe 5, and realizing drilling of rock and soil by the down-the-hole hammer; the treated high-quality slurry is reinjected into the drill hole to realize slurry wall protection, and no casing follow-up is needed in the overburden geological drilling process;

synchronously lowering the steel wire rope 8, the slurry discharge pipe 5, the air inlet pipe 6 and the exhaust pipe 7, and enabling the drill rod 4 to be lowered while drilling until drilling is completed;

the utility model relates to a swing rotatory mud reverse circulation down-the-hole hammer rig's application method, equipment cost is low, construction speed is fast, with low costs.

Further, in the third step, when the drill hole is a water-wet hole, high-pressure air is injected into the slag suction pipe in the cluster down-the-hole hammer 1 to suck the slurry carrying the drill slag, so that slurry gas-lift reverse circulation slag discharge is formed;

when the drill hole is a waterless dry hole, an air jetting and sucking device is arranged in a slag sucking pipe of the cluster down-the-hole hammer 1, high-pressure air is injected to suck the drill slag, air reverse circulation slag removal is formed, and waterless dry hole and mud-free construction is facilitated;

when the drilling is shallow hole drilling, an air injection and suction device is arranged in an inner slag suction pipe of the cluster down-the-hole hammer 1, air is injected, slurry carrying drilling slag is sucked, slurry reverse circulation slag removal is formed, and slurry reverse circulation drilling is carried out when gas lift reverse circulation is not effective under the condition of opening holes conveniently;

the utility model discloses a swing rotatory mud reverse circulation down-the-hole hammer rig hard rock drilling speed is very fast, adopts hierarchical reaming or core drilling method when major diameter drilling construction, still can have very fast drilling speed, can reduce rig weight and moment of torsion like this, reduces rig 9 model, and down-the-hole hammer construction weight is less, and rig 9 can not pressurize, and flexible drilling rod only need transmit the moment of torsion, and 4 drilling depths of drilling rod are deeper than the pressurization drilling; the utility model discloses rotatory mud reverse circulation down-the-hole hammer drill model of swing is little, possesses the drilling ability of the drilling of the hard rock of super dark super large diameter, and drilling speed is ultrafast, and comprehensive construction cost is ultralow.

In order to illustrate more clearly the utility model discloses a rotatory mud reverse circulation down-the-hole hammer drill of swing, compare the advantage that has with prior art, the staff has carried out the contrast with technical scheme, its contrast result is as follows:

according to the upper table, a dive drive dig mud reverse circulation down-the-hole hammer rig soon when the drilling of major diameter deep overburden, compare with prior art, equipment is light and handy, the cost is low, creeps into the rock fast, construction cost is low.

Other parts not described belong to the prior art.

Claims (2)

1. A swinging rotary mud reverse circulation down-the-hole hammer drill is characterized in that: the device comprises a cluster down-the-hole hammer (1), a pile frame (2), a power head (3), a drill rod (4), a slurry discharge pipe (5), an air inlet pipe (6), an exhaust pipe (7), a steel wire rope (8) and a drilling machine (9);

the drill rod (4) is a multi-layer telescopic drill rod, the power head (3) provides torque for the drill rod (4), and the drill rod swings and rotates at 180 degrees left and right during drilling;

the slurry discharge pipe (5) enters the drill hole and is connected with the cluster down-the-hole hammer (1);

the air inlet pipe (6) and the air outlet pipe (7) enter the drill hole and are connected with the cluster down-the-hole hammer (1);

each single down-the-hole hammer on the cluster down-the-hole hammer (1) is provided with a closed outer sleeve, all exhaust of the collected down-the-hole hammers is discharged into an exhaust channel inside the cluster down-the-hole hammer (1) and is discharged into the atmosphere through an exhaust pipe (7), the bottom of the down-the-hole hammer is not provided with an exhaust hole, the exhaust of the down-the-hole hammer cannot be discharged into mud in a pile hole, and a slag and mud sucking pipe is arranged in the cluster down-the-hole hammer (1).

2. A swing rotary mud reverse circulation down-the-hole hammer drill as claimed in claim 1, wherein: the drilling machine (9) is a drilling machine using a telescopic drill rod or a drilling machine simply modified by a crawler crane, and the structure of the drilling machine modified by the crawler crane comprises the crawler crane, a pile frame (2) and a power head (3), and a large-tonnage lifting winch is modified.

Images