CN209761366U - Dust suppression device for operation of down-the-hole drill - Google Patents
Dust suppression device for operation of down-the-hole drill Download PDFInfo
- Publication number
- CN209761366U CN209761366U CN201920153908.4U CN201920153908U CN209761366U CN 209761366 U CN209761366 U CN 209761366U CN 201920153908 U CN201920153908 U CN 201920153908U CN 209761366 U CN209761366 U CN 209761366U
- Authority
- CN
- China
- Prior art keywords
- hole drill
- horn
- hairbrush
- dust
- cylinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000000428 dust Substances 0.000 title claims abstract description 28
- 230000001629 suppression Effects 0.000 title claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000004677 Nylon Substances 0.000 claims abstract description 11
- 229920001778 nylon Polymers 0.000 claims abstract description 11
- 238000005553 drilling Methods 0.000 claims abstract description 6
- 238000005507 spraying Methods 0.000 claims description 3
- 238000010410 dusting Methods 0.000 claims 1
- 239000011435 rock Substances 0.000 abstract description 13
- 239000000843 powder Substances 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 3
- 230000035699 permeability Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
Landscapes
- Brushes (AREA)
Abstract
The utility model discloses a dust suppression device for down-the-hole drill operation, which comprises a horn cylinder and is characterized in that a large cylinder opening of the horn cylinder is connected with a circle of horn mouth type hairbrush, the horn mouth type hairbrush is a circle of nylon wire hairbrush, and the thickness of the nylon wire hairbrush is more than 10 mm; 2-4 water nozzles are arranged in the horn cylinder; during the operation of the down-the-hole drill, the down-the-hole drill can be tightly attached to the rock surface of an orifice and has air permeability, so that rock dust can be blocked, the powder discharge air pressure is not blocked, and the powder discharge effect and the drilling efficiency are not influenced; and the rock powder is soaked and flushed by water to fall to the ground, so that the rock powder cannot be diffused in a roadway, and the problem of dust removal in the operation of the down-the-hole drill is thoroughly solved.
Description
Technical Field
The utility model relates to a down-the-hole drill.
Background
In the underground roadway operation process of the down-the-hole drill, rock powder in a drill hole is discharged in a wind pressure air discharge mode, and if dust is not effectively removed, the rock powder can permeate the roadway and cause great damage to a human body. The existing dust suppression mode is that a dust suppression cover is sleeved on an orifice and is connected with a dust absorption device to absorb the discharged dust. Because the dust suppression cover is a common horn cylinder with airtight peripheral wall, the dust exhaust air pressure is blocked, the dust exhaust effect and the drilling efficiency are influenced, and if the peripheral wall of the horn cylinder is provided with the air outlet, dust can overflow from the air outlet; when the hole opening is uneven, the dust hood and the rock wall are not tightly sealed, and rock powder can be sprayed out from the gap; therefore, the effective dust removal in the operation process of the down-the-hole drill is a great technical problem.
Disclosure of Invention
In order to solve the effective dust removal problem among the down-the-hole drill operation process, the utility model relates to a down-the-hole drill operation dust suppression device.
The technical scheme is that the dust suppression device for the operation of the down-the-hole drill comprises a horn cylinder and is characterized in that a large cylinder opening of the horn cylinder is connected with a circle of horn mouth type hairbrush, the horn mouth type hairbrush is a circle of nylon wire hairbrush, and the thickness of the nylon wire hairbrush is larger than 10 mm; 2-4 water nozzles are arranged in the horn cylinder, and the water spraying direction of the water nozzles faces to the drilling hole.
Furthermore, in order to automatically discharge the rock powder-water mixture in time during the operation of the down-the-hole drill, a notch is reserved on the nylon wire hairbrush and faces downwards when the nylon wire hairbrush is used.
The working principle is that in the operation of the down-the-hole drill, the bell mouth type brush of the dust suppression device has certain elasticity and divergence, can be tightly attached to the rock surface of the hole, and dust discharged by wind is not easy to overflow; the horn mouth type brush has air permeability, is equivalent to a multi-layer filter screen, can block rock dust, prevents the dust exhaust air pressure from being blocked, and does not influence the dust exhaust effect and the drilling efficiency; and then the high-pressure water and the dust are mutually fused in the cover, so that the rock powder is soaked and then is flushed by water to fall to the ground, and the rock powder cannot be diffused in a roadway, thereby thoroughly solving the dust removal problem in the operation of the down-the-hole drill.
Drawings
Fig. 1 is a schematic diagram of an embodiment of the present invention.
The figure illustrates 1-trumpet, 2-trumpet-type brush, 3-notch, 4-water nozzle.
Detailed Description
The dust suppression device for the operation of the down-the-hole drill shown in the figure 1 comprises a horn cylinder 1, wherein a large cylinder opening of the horn cylinder 1 is connected with a circle of horn mouth type hairbrush 2, the horn mouth type hairbrush 2 is a circle of nylon wire hairbrush, and the thickness of the nylon wire hairbrush is more than 10 mm; 2-4 water nozzles 4 are arranged in the horn cylinder 1, and the water spraying direction of the water nozzles 4 faces to the drilling hole.
Furthermore, in order to automatically discharge the rock-powder-water mixture in time during the operation of the down-the-hole drill, a notch 3 is reserved on the horn mouth type brush 2, and the notch 3 faces downwards during the use.
Claims (2)
1. A dust suppression device for operation of a down-the-hole drill comprises a horn cylinder and is characterized in that a large cylinder opening of the horn cylinder is connected with a circle of horn-mouth-shaped hairbrush, the horn-mouth-shaped hairbrush is a circle of nylon wire hairbrush, and the thickness of the nylon wire hairbrush is larger than 10 mm; 2-4 water nozzles are arranged in the horn cylinder, and the water spraying direction of the water nozzles faces to the drilling hole.
2. A down-the-hole drill operation dusting device as claimed in claim 1 wherein a notch is provided in the nylon wire brush, the notch facing downwardly in use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920153908.4U CN209761366U (en) | 2019-01-29 | 2019-01-29 | Dust suppression device for operation of down-the-hole drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920153908.4U CN209761366U (en) | 2019-01-29 | 2019-01-29 | Dust suppression device for operation of down-the-hole drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209761366U true CN209761366U (en) | 2019-12-10 |
Family
ID=68750801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920153908.4U Expired - Fee Related CN209761366U (en) | 2019-01-29 | 2019-01-29 | Dust suppression device for operation of down-the-hole drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209761366U (en) |
-
2019
- 2019-01-29 CN CN201920153908.4U patent/CN209761366U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191210 |