CN205532405U - A drill way dust extractor that is used for down --hole impact formula of circling round to creep into - Google Patents
A drill way dust extractor that is used for down --hole impact formula of circling round to creep into Download PDFInfo
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- CN205532405U CN205532405U CN201521135271.4U CN201521135271U CN205532405U CN 205532405 U CN205532405 U CN 205532405U CN 201521135271 U CN201521135271 U CN 201521135271U CN 205532405 U CN205532405 U CN 205532405U
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Abstract
The utility model discloses a drill way dust extractor that is used for down - -hole impact formula of circling round to creep into, including the outer tube and be arranged in the inner tube of outer tube tube hole, the rear end of outer tube, inner tube flushes, the front end of inner tube stretches out the outer tube, it is sealed to set up annular block between the both ends of outer tube and the inner tube respectively, surround into the rong shui space between outer tube, inner tube and two annular block, the part that the inner tube is located the outer tube sets up a plurality of first hole for water sprayings, be equipped with the inlet opening on the outer tube. It can ensure that the dust does not get into the construction tunnel, guarantees effective prevention and cure of drilling construction period no powder, purifies the construction environment, and the guarantee worker is healthy.
Description
Technical field
This utility model relates to mine drilling construction technology, particularly relates to a kind of dust removing device for drilling crept into for down-the-hole impact Clothoid type, it is ensured that during underground boring construction, dust concentration meets occupational health standard.
Background technology
Mine safety production it is important that Comprehensive Gas Control, gas control mainly uses hole pumping and mining coal-bed gas, and layer-through drilling must be used to take out coal-bed gas in advance with actual mining Middle face blank tape before heading driving, coal and gas prominent and gas exceeding limit accident is there is not during guaranteeing digging, need to construct a large amount of layer-through drilling, layer-through drilling is allowed for access coal seam through maokou limestone and alum clay breccia, wherein alum clay breccia is heterogeneity rock, hardness is big, Protodyakonov coefficient reaches more than 12, very thickness reaches 5m, cause using PDC drill bit to creep into, hydraulic slag discharging process costs is high, for ensureing that drilling construction reaches effect, reduce the purpose of cost, new drill construction technique down-the-hole impact Clothoid type is used to creep into, wind power slag-discharging.
Drilling construction is an of paramount importance step in mine gas control, drilling construction progress and construction quality are to ensure that gas pumping effect is up to standard, guarantee to produce one of means of being normally carried out, new technique ensures the further raising of drilling construction progress and quality, but this construction technology uses wind power slag-discharging technique, producing substantial amounts of dust makes construction environment severe, and the dust prevention and control means that this technology is supporting simultaneously are not enough, it is difficult to ensure that dust concentration meets sanitary standard.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, there is provided a kind of dust removing device for drilling crept into for down-the-hole impact Clothoid type, it can ensure that dust does not enter construction tunnel, it is ensured that effective preventing and treating of produced dust during drilling construction, purify construction environment, ensure that worker is healthy.
The purpose of this utility model is achieved in that
A kind of dust removing device for drilling crept into for down-the-hole impact Clothoid type, including outer tube and be positioned at the inner tube in outer tube pore, described outer tube, the rear end of inner tube flush, outer tube is stretched out in the front end of said inner tube, it is respectively provided with ring block between two ends and the inner tube of described outer tube to seal, surrounding into water space capacity between described outer tube, inner tube and two ring blocks, said inner tube is positioned at the part of outer tube and arranges some first hole for water sprayings, and described outer tube is provided with inlet opening.
Preferably, some first hole for water sprayings in said inner tube are divided into many groups, form multiple first hole for water spraying group, and the first hole for water spraying of each first hole for water spraying group is uniformly distributed along inner tube circumference respectively, the first hole for water spraying dislocation correspondence of adjacent first hole for water spraying group.
Preferably, the spacing between described adjacent first hole for water spraying group is identical.
Preferably, the ring block of described outer tube front end is uniformly provided with some second hole for water sprayings.
Preferably, described outer tube being radially provided with a water inlet pipe, this water inlet pipe connects with the inlet opening on outer tube.
Preferably, described outer tube, inner tube all use hot rolled seamless steel tube to make.
Preferably, described outer tube, inner tube are coaxial.
Owing to have employed technique scheme, this utility model has the advantages that
1, creeping into according to down-the-hole impact Clothoid type, after the dust extractor application designed by wind power slag-discharging technique, when creeping into, dust-proof effect is splendid, and dust-proof rate reaches more than 95%, it is ensured that during wind power slag-discharging construction technology, in tunnel, dust concentration meets sanitary standard.
2, reaching 2.8～5.7m/h, average out to 3.1m/h according to statistics drilling construction progress, every per-shift drilling depth is up to 14m.
When 3, guaranteeing underground boring construction, dust concentration meets occupational health standard, ensures workmen's life security.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the left view schematic diagram of Fig. 1；
Fig. 3 is operating diagram of the present utility model.
Reference
In accompanying drawing, 1 is outer tube, and 2 is inner tube, and 3 is ring block, and 4 is water space capacity, and 5 is the first hole for water spraying, and 6 is the second hole for water spraying, and 7 is water inlet pipe, and 8 is down-the-hole air hammer, and 9 is drilling rod, and 10 is timber wedge, and 11 is boring.
Detailed description of the invention
Seeing Fig. 1, for a kind of preferred embodiment of dust removing device for drilling crept into for down-the-hole impact Clothoid type, including outer tube 1 and be positioned at the inner tube 2 in outer tube 1 pore, described outer tube 1, inner tube 2 are coaxial.Described outer tube 1, the rear end of inner tube 2 flush, outer tube 1 is stretched out in the front end of said inner tube 2, in the present embodiment, described outer tube 1, inner tube 2 all use hot rolled seamless steel tube to make, and wherein, outer tube uses Φ 90mm hot rolled seamless steel tube, inner tube uses Φ 75mm hot rolled seamless steel tube, inner tube length 500mm, outer length of tube 300mm, outer tube 200mm is stretched out in the front end of inner tube.
It is respectively provided with ring block 3 between two ends and the inner tube 2 of described outer tube 1 to seal, in the present embodiment, ring block 3 uses 3mm steel plate to make, ring block 3 is welded and fixed with outer tube 1, inner tube 2, described outer tube 1, between inner tube 2 and two ring blocks 3, surround into water space capacity 4, said inner tube 2 is positioned at the part of outer tube 1 and arranges some first hole for water sprayings 5, and the ring block 3 of described outer tube 1 front end is uniformly provided with some second hole for water sprayings 6, and the aperture of first hole for water spraying the 5, second hole for water spraying 6 is 2mm.The quantity of described second hole for water spraying 6 is eight, and described outer tube 1 is provided with inlet opening, and described outer tube 1 is radially provided with a water inlet pipe 7, and this water inlet pipe 7 connects with the inlet opening on outer tube 1.In the present embodiment, described water inlet pipe 7 uses the seamless steel pipe of Φ 19mm to make, by piercing welding on outer tube.
Further, some first hole for water sprayings 5 in said inner tube 2 are divided into five groups, form five the first hole for water spraying groups, each first hole for water spraying group includes eight the first hole for water sprayings, first hole for water spraying 5 of each first hole for water spraying group is uniformly distributed along inner tube 2 circumference respectively, and the first hole for water spraying 5 of adjacent first hole for water spraying group misplaces correspondence.Spacing between 5 groups of described adjacent first hole for water spraying is 70mm.
Using method of the present utility model is as follows:
1, the PDC drill bit of Φ 75mm is first used to spud in hole 11, hydraulic slag discharging construction technology length 2m, down-the-hole air hammer 8 and the front ends of inner tube 2 are installed, with timber wedge 10 wedging between the hole wall of inner tube 2 and boring 11, it is ensured that drilling rod 9 and inner tube 2 are concentric in boring 11.
2, starting and must be turned on dust-proof water formation spraying before pressure air drill enters, dust-proof water pressure ensures 0.2～0.5MPa, and the water yield is not less than 1.2L/min.
3, the water yield is adjusted by drilling process according to rate of penetration, it is ensured that dust-proof effect.
Work process of the present utility model is as follows:
When using dust extractor, by water filling in water inlet pipe inlet opening on outer tube, water collects in water space capacity, it is injected in inner tube by each first hole for water spraying again, by the gap between each second hole for water spraying injection to the hole wall of inner tube 2 and boring 11, water is atomized under the effect and boring pressure wind impact of static pressure, and water atomization moistens dust, reduces dust in air concentration.
Finally illustrate is, preferred embodiment above is only in order to illustrate the technical solution of the utility model and unrestricted, although this utility model being described in detail by above preferred embodiment, but skilled artisan would appreciate that, in the form and details it can be made various change, without departing from this utility model claims limited range.
Claims (7)
1. the dust removing device for drilling crept into for down-the-hole impact Clothoid type, it is characterised in that: include outer tube
And it being positioned at the inner tube in outer tube pore, described outer tube, the rear end of inner tube flush, the front end of said inner tube
Stretch out outer tube, be respectively provided with ring block between two ends and the inner tube of described outer tube and seal, described outer tube, interior
Surrounding into water space capacity between pipe and two ring blocks, said inner tube is positioned at the part of outer tube and arranges some
First hole for water spraying, described outer tube is provided with inlet opening.
The dust removing device for drilling crept into for down-the-hole impact Clothoid type the most according to claim 1, it is special
Levy and be: some first hole for water sprayings in said inner tube are divided into many groups, form multiple first hole for water spraying group,
First hole for water spraying of each first hole for water spraying group is uniformly distributed along inner tube circumference respectively, adjacent first hole for water spraying group
First hole for water spraying dislocation correspondence.
The dust removing device for drilling crept into for down-the-hole impact Clothoid type the most according to claim 2, it is special
Levy and be: the spacing between described adjacent first hole for water spraying group is identical.
The dust removing device for drilling crept into for down-the-hole impact Clothoid type the most according to claim 1, it is special
Levy and be: on the ring block of described outer tube front end, be uniformly provided with some second hole for water sprayings.
The dust removing device for drilling crept into for down-the-hole impact Clothoid type the most according to claim 1, it is special
Levying and be: be radially provided with a water inlet pipe on described outer tube, this water inlet pipe connects with the inlet opening on outer tube.
The dust removing device for drilling crept into for down-the-hole impact Clothoid type the most according to claim 1, it is special
Levy and be: described outer tube, inner tube all use hot rolled seamless steel tube to make.
The dust removing device for drilling crept into for down-the-hole impact Clothoid type the most according to claim 1, it is special
Levy and be: described outer tube, inner tube are coaxial.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521135271.4U CN205532405U (en) | 2015-12-30 | 2015-12-30 | A drill way dust extractor that is used for down --hole impact formula of circling round to creep into |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521135271.4U CN205532405U (en) | 2015-12-30 | 2015-12-30 | A drill way dust extractor that is used for down --hole impact formula of circling round to creep into |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205532405U true CN205532405U (en) | 2016-08-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521135271.4U Expired - Fee Related CN205532405U (en) | 2015-12-30 | 2015-12-30 | A drill way dust extractor that is used for down --hole impact formula of circling round to creep into |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205532405U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106669472A (en) * | 2017-02-13 | 2017-05-17 | 湖州光博生物科技有限公司 | Homogenizing emulsification facility for environment-friendly glue production |
| CN107345476A (en) * | 2017-08-25 | 2017-11-14 | 四川吉赛特科技有限公司 | Down-the-hole rotates vibration air drilling dust Control device |
| CN110485952A (en) * | 2019-09-20 | 2019-11-22 | 核工业井巷建设集团有限公司 | A kind of hidden hole drilling drilling hole dust collector device |
-
2015
- 2015-12-30 CN CN201521135271.4U patent/CN205532405U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106669472A (en) * | 2017-02-13 | 2017-05-17 | 湖州光博生物科技有限公司 | Homogenizing emulsification facility for environment-friendly glue production |
| CN107345476A (en) * | 2017-08-25 | 2017-11-14 | 四川吉赛特科技有限公司 | Down-the-hole rotates vibration air drilling dust Control device |
| CN110485952A (en) * | 2019-09-20 | 2019-11-22 | 核工业井巷建设集团有限公司 | A kind of hidden hole drilling drilling hole dust collector device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160831 Termination date: 20201230 |
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| CF01 | Termination of patent right due to non-payment of annual fee |