CN216406743U

CN216406743U - Roofbolter dust prevention device

Info

Publication number: CN216406743U
Application number: CN202123299561.0U
Authority: CN
Inventors: 谢远亮; 毕才华; 陈常银
Original assignee: China Coal Jiangnan Construction Development Group Co ltd
Current assignee: China Coal Jiangnan Construction Development Group Co ltd
Priority date: 2021-12-23
Filing date: 2021-12-23
Publication date: 2022-04-29
Anticipated expiration: 2031-12-23

Abstract

The utility model discloses a dust-raising prevention device of a jumbolter, aiming at timely removing slag and dust generated in drilling, avoiding raising dust and not influencing drilling operation, and the technical scheme is as follows: a dust-raising prevention device of a jumbolter comprises a dust cover used for covering an external drill hole, wherein a drill bit of the external drill penetrates into the external drill hole from the top of the dust cover, a slag discharge pipe extending upwards in an inclined mode is arranged on the outer wall of the dust cover, the slag discharge pipe is communicated with the interior of the dust cover, and broken slag and dust are sprayed into the dust cover by recoil force generated by high-pressure gas output by the drill bit of the external drill and are discharged out through the slag discharge pipe; still include a filter vat, the top and the peripheral hardware dust collecting equipment intercommunication of filter vat, its bottom are open end, the upper portion intercommunication of pipe and filter vat of slagging tap through a connecting hose, disintegrating slag and dust are in the filter vat separation and discharge from the bottom and the top of filter vat respectively, belong to drilling equipment technical field.

Description

Roofbolter dust prevention device

Technical Field

The utility model belongs to the technical field of drilling equipment, and particularly relates to a dust-raising-proof device of a jumbolter.

Background

When the jumbolter is used for drilling, high-pressure air can be injected into the hole through the drill bit, sediment, broken stone and the like at the bottom of the hole are blown up, the sediment, the broken stone and the like are released in a jet mode above the drilled hole, a large amount of dust is blown up, and the jumbolter is dangerous and can cause serious pollution to air.

In view of this situation, CN110145266A discloses a bolt drilling dust collecting device. It is mainly characterized in that: comprises a collection cavity; a dust collecting and air extracting cavity and a punching pipeline are arranged on the collecting cavity; the outer port of the dust collection and air extraction cavity is provided with a sleeved top cover; the punching pipeline penetrates through the wall of the collecting cavity and is matched with a drilling shaft of a drilling machine.

According to the device, the collection cavity is adopted to inhibit dust from flying, the collection cavity is covered above the drill hole, air is extracted from the interior of the collection cavity through air extraction equipment, and according to the description of the specification, the separation net is arranged in the collection cavity to prevent sediment, broken stones and the like from entering an air extraction pipeline, so that the sediment, the broken stones and the like discharged from the drill hole can only be accumulated in the collection cavity;

after the sediment, the broken stones and the like are accumulated to a certain degree, the drilling efficiency of the drill bit is influenced, and the working efficiency is also influenced even if the sediment, the broken stones and the like are manually cleaned at intervals;

therefore, timely discharging of the sediment and the broken stones while preventing dust emission is an urgent problem to be solved in the operation process of the anchor rod drilling machine.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a dust-raising-proof device of an anchor rod drilling machine, which aims to timely remove broken slag and dust generated in drilling, so that dust raising can be avoided and drilling operation is not influenced.

According to a first aspect of the utility model, a dust-raising prevention device of a jumbolter is provided, which comprises a dust cover used for covering an external drill hole, wherein a drill bit of the external drill penetrates into the external drill hole from the top of the dust cover, a slag discharging pipe extending upwards in an inclined mode is arranged on the outer wall of the dust cover, the slag discharging pipe is communicated with the interior of the dust cover, and broken slag and dust are sprayed into the dust cover by recoil force generated by high-pressure gas output by the drill bit of the external drill and are discharged out through the slag discharging pipe;

the top of the filter vat is communicated with external dust collection equipment, the bottom of the filter vat is an open end, the slag discharging pipe is communicated with the upper part of the filter vat through a connecting hose, and crushed slag and dust are separated in the filter vat and are discharged from the bottom and the top of the filter vat respectively.

In the dust prevention device for the jumbolter, the filter barrel is divided into the cylindrical section and the inverted conical section from top to bottom, the top of the cylindrical section is communicated with an external dust removal device, the bottom of the inverted conical section is an open end, and the connecting hose is communicated with the cylindrical section.

In the dust prevention device for the jumbolter, the diameter of the bottom of the inverted conical section is 1/3-3/5 of the diameter of the cylindrical section.

In the dust prevention device for the jumbolter, the height of the inverted conical section is 1/3-1/5 of the height of the cylindrical section.

In the dust prevention device for the jumbolter, the cylindrical section is internally provided with the filter screen for preventing the crushed slag from going out from the top of the cylindrical section.

In the dust-raising prevention device of the jumbolter, the outer wall of the dust cover is provided with the plurality of flexible sheets, the flexible sheets are sequentially spliced and wound on the outer wall of the dust cover, and the flexible sheets extend downwards to be attached to the ground to be used for sealing a gap between the bottom of the dust cover and the ground.

One of the above technical solutions of the present invention has at least one of the following advantages or beneficial effects:

according to the utility model, the back-flushing force generated by the high-pressure gas output by the drill bit of the peripheral drilling machine blows out the crushed slag and the dust in the drill hole, the dust cover can prevent the crushed slag and the dust from splashing, the dust is prevented from flying, the crushed slag and the dust are timely conveyed away through the slag discharge pipe, and the drilling operation is not influenced;

disintegrating slag and dust are in the filter vat is sprayed along coupling hose under high-pressure gas's effort, impact the inner wall of filter vat, and then make disintegrating slag and dust separation, and heavier disintegrating slag drops from the bottom of filter vat, makes things convenient for the workman to collect, and lighter dust then rises and is siphoned away by peripheral hardware dust collecting equipment and carry out pollution-free processing.

Drawings

The utility model is further described below with reference to the accompanying drawings and examples;

FIG. 1 is a schematic structural view of embodiment 1 of the present invention;

FIG. 2 is a structural sectional view of a dust cap of embodiment 1 of the utility model;

fig. 3 is a structural sectional view of a filter vat according to embodiment 1 of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

The following disclosure provides many different embodiments, or examples, for implementing different aspects of the utility model.

Example 1

Referring to fig. 1 to 3, in one embodiment of the utility model, the dust-proof device of the jumbolter comprises a dust cover 1 for covering an external drill hole, wherein a drill bit of the external drill penetrates into the external drill hole from the top of the dust cover 1, a slag discharging pipe 11 extending upwards in an inclined mode is arranged on the outer wall of the dust cover 1, and the slag discharging pipe 11 is communicated with the inside of the dust cover 1;

still include a filter vat 2, the top and the peripheral hardware dust collecting equipment intercommunication of filter vat 2, its bottom is open end, slag pipe 11 is through the upper portion intercommunication of a coupling hose 3 with filter vat 2.

The dust cover 1 can prevent the broken slag and the dust from splashing, avoid dust flying, and convey the broken slag and the dust away in time through the slag outlet pipe 11 without influencing the drilling operation; the slag discharging pipe 11 is obliquely and upwards arranged, so that the gas flow is facilitated, and the discharge of broken slag and dust is facilitated;

disintegrating slag and dust are along coupling hose 3 injection to filter vat 2 in under high-pressure gas's effort, impact filter vat 2's inner wall, and then make disintegrating slag and dust separation, heavier disintegrating slag drops from filter vat 2's bottom, make things convenient for the workman to collect, and lighter dust then rises and is siphoned away by peripheral hardware dust collecting equipment and carry out pollution-free processing.

In a specific embodiment, the filter vat 2 can be fixed on a mechanical arm of an external drilling machine, so that the filter vat 2 and the dust cover 1 can move synchronously.

Specifically, the filter barrel 2 is divided into a cylindrical section 21 and an inverted conical section 22 from top to bottom, the top of the cylindrical section 21 is communicated with external dust removal equipment, the bottom of the inverted conical section 22 is an open end, and the connecting hose 3 is communicated with the cylindrical section 21; along with the injection of air current, disintegrating slag and dust can strike the inner wall of cylinder section 21, and the dust on the disintegrating slag can be separated out and conveniently is siphoned away by dust collecting equipment, but does not get rid of and has some dust more stubborn, so be equipped with radius conic section 22, the disintegrating slag can strike the inner wall of radius conic section 22 at the whereabouts in-process, further separate the dust.

Preferably, the diameter of the bottom of the inverted cone section 22 is 1/3-3/5 of the diameter of the cylindrical section 21, and the diameter of the bottom of the inverted cone section 22 is not only convenient for the passage of the crushed slag, but also as far as possible for the crushed slag to impact the inner wall of the inverted cone section 22; more preferably, the diameter of the bottom of the rounded conical section 22 is 1/2 times the diameter of the cylindrical section 21.

Preferably, the height of the inverted cone section 22 is 1/3-1/5 of the height of the cylindrical section 21, and the inverted cone section 22 is too long, which causes blockage and too short, which can cause broken slag to fall out of the filter vat 2 without separating out dust; more preferably, the height of the rounded conical section 22 is 1/4 the height of the cylindrical section 21.

Preferably, a baffle plate 24 extending obliquely downward to the upper part of the bottom of the inverted cone section 22 can be arranged on the inner wall of the cylindrical section 21, the width of the baffle plate 24 is adapted to the diameter of the bottom of the inverted cone section 22, and the crushed slag is prevented from directly falling out of the bottom of the inverted cone section 22 without contacting the inner wall of the inverted cone section 22; the baffle 24 may be fixedly connected to the inner wall of the cylindrical section 21 by welding.

In this embodiment, a filter screen 23 for preventing the crushed slag from going out from the top of the cylindrical section 21 is arranged in the cylindrical section 21, so that some crushed slag is prevented from going out from the top of the cylindrical section 21 due to the influence of the airflow, and the damage to the peripheral dust collecting equipment is avoided.

In a specific embodiment, the ground is uneven, and even if the bottom of the dust cover 1 is provided with an elastic rubber ring, no gap can be generated completely, so that the outer wall of the dust cover 1 is provided with a plurality of flexible sheets 4, the flexible sheets 4 are sequentially spliced and surrounded on the outer wall of the dust cover 1, the flexible sheets 4 extend downwards to be attached to the ground for sealing the gap between the bottom of the dust cover 1 and the ground, a second sealing line is formed, and air flow is prevented from being blown out through the gap to cause dust raising;

in actual operation, flexible sheet 4 can be adhered with water, and flexible sheet 4 is attached to the ground through water and is not easy to scatter; the flexible sheet 4 may be a metal sheet, a plastic sheet or a rubber sheet.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. The utility model provides a jumbolter dust-raising prevention device, includes dust cover (1) that is used for the shroud on the peripheral hardware drilling, and the drill bit of peripheral hardware drilling penetrates in the peripheral hardware drilling from the top of dust cover (1), its characterized in that, be equipped with slope upwards extending's slag pipe (11) on the outer wall of dust cover (1), slag pipe (11) and the inside intercommunication of dust cover (1), the produced recoil force of high-pressure gas of the drill bit output of peripheral hardware drilling sprays disintegrating slag and dust in dust cover (1), discharges away through slag pipe (11);

still include a filter vat (2), the top and the peripheral hardware dust collecting equipment intercommunication of filter vat (2), its bottom is open end, slag pipe (11) are through the upper portion intercommunication of a connecting hose (3) with filter vat (2), and the bottom and the top discharge of filter vat (2) are followed respectively to the separation of disintegrating slag and dust in filter vat (2).

2. The jumbolter dust arrester of claim 1, wherein the filter vat (2) is divided into a cylindrical section (21) and an inverted cone section (22) from top to bottom, the top of the cylindrical section (21) is communicated with an external dust removal device, the bottom of the inverted cone section (22) is an open end, and the connecting hose (3) is communicated with the cylindrical section (21).

3. A jumbolter dust arrester as claimed in claim 2, wherein the diameter of the bottom of the rounded conical section (22) is 1/3-3/5 of the diameter of the cylindrical section (21).

4. A jumbolter dust arrester as claimed in claim 2, wherein the height of the rounded conical section (22) is 1/3-1/5 of the height of the cylindrical section (21).

5. A jumbolter dust arrester as claimed in claim 2, wherein the cylindrical section (21) is provided with a screen (23) therein for preventing the passage of detritus from the top of the cylindrical section (21).

6. The jumbolter dust-raising prevention device according to claim 1, wherein the outer wall of the dust cover (1) is provided with a plurality of flexible sheets (4), the flexible sheets (4) are sequentially spliced and surrounded on the outer wall of the dust cover (1), and the flexible sheets (4) extend downwards to be attached to the ground for sealing a gap between the bottom of the dust cover (1) and the ground.