CN201671555U - Anti-protrusion temperature reduction drill stem - Google Patents
Anti-protrusion temperature reduction drill stem Download PDFInfo
- Publication number
- CN201671555U CN201671555U CN2010201907846U CN201020190784U CN201671555U CN 201671555 U CN201671555 U CN 201671555U CN 2010201907846 U CN2010201907846 U CN 2010201907846U CN 201020190784 U CN201020190784 U CN 201020190784U CN 201671555 U CN201671555 U CN 201671555U
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- China
- Prior art keywords
- drill stem
- temperature reduction
- air
- main body
- drilling rod
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Abstract
The utility model belongs to the field of coal mining and particularly relates to an anti-protrusion temperature reduction drill stem. The anti-protrusion temperature reduction drill stem comprises a drill stem main body. The inside of the drill stem main body is provided with an air inlet channel. At least one air outlet channel is arranged outside the air inlet channel. The air outlet channel is arranged on the drill stem main body, and thus, air is fed into the anti-protrusion temperature reduction drill stem by the air inlet channel when the anti-protrusion temperature reduction drill stem works and coal dust and mine gas are driven by the air to be exhausted from the air outlet channel. The air outlet channel is arranged inside the drill stem main body, so that the blockage phenomenon cannot occur and slag is smoothly discharged. Moreover, after the outer wall of the drill stem main body is provided with bulges, when the anti-protrusion temperature reduction drill stem works, the bulges are contacted with the hole wall so as to reduce the temperature of the whole drill stem and reduce deformation of the drill stem caused by the temperature. Meanwhile, the coal dust and the mine gas can be also discharged from a gap between the drill stem and the hole wall so as to fasten the slag discharging speed.
Description
Technical field
The utility model belongs to the coal mining field, is specifically related to a kind of drilling rod.
Background technology
In process of coal mining, need before mining, carry out extraction to coal and gas are projecting coal bed, the extraction borehole of need in the coal seam, constructing of the gas in the extraction coal seam to the gas in the coal seam.Though common several drilling rods are easily manufactured, its coal dust mainly is to discharge by the slit between the hole wall outside drilling rod and the drilling rod, yet the slit that often occurs in this course of work between the two (drilling rod and hole wall) is stopped up, cause deslagging (coal dust or methane gas) not smooth, and yielding when being heated.
The utility model content
The purpose of this utility model is at above-mentioned the deficiencies in the prior art, provides a kind of deslagging unobstructed, on-deformable anti-outstanding cooling drilling rod.
The technical solution of the utility model realizes in the following manner:
A kind of anti-clogging drilling rod comprises the drilling rod body, and the drilling rod body interior is provided with air intake passage, and air intake passage is provided with at least one air-out passage outward.
Described drilling rod body outer wall is provided with projection.
Described air-out passage is 1,2,3,4,5 or 6.
The cross section of described air-out passage is circular or square or oval.
The utility model is provided with the air-out passage on the drilling rod body, inwardly blow by air intake passage during work, and wind drives coal dust, methane gas is discharged from the air-out passage.Because the air-out passage is arranged on the drilling rod body interior, so clogging can not occur, makes deslagging more unobstructed.In addition, on drilling rod body outer wall, be provided with projection after, contact with hole wall in when work projection, reduce the temperature of stem, reduced the drilling rod distortion that temperature causes, simultaneously, coal dust and methane gas also can be discharged from drilling rod and the slit of hole wall time, have accelerated deslagging speed.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment 1;
Fig. 2 is that the A-A of Fig. 1 is to cross-sectional schematic;
Fig. 3 is the cross-sectional schematic of the utility model embodiment 2.
The specific embodiment
Shown in Fig. 1～2, anti-clogging drilling rod of the present utility model comprises drilling rod body 1, and drilling rod body 1 inside is provided with air intake passage 3, the air intake passage 3 outer air-out passages 2 that are provided with.The position, termination of air intake passage 3 and air-out passage 2 communicates, and wind can enter vent passages 2 from air intake passage 3, drives the motion of coal dust and gas.Described air-out passage 2 can be 1,2,3,4,5 or 6 or other.
The cross section of described air-out passage 2 can for circular or square or oval or other.
As shown in Figure 3, drilling rod body 1 outer wall of the present utility model is provided with projection 4.Other structures are with embodiment 1.
Claims (4)
1. an anti-clogging drilling rod comprises drilling rod body (1), it is characterized in that: drilling rod body (1) inside is provided with air intake passage (3), outer at least one the air-out passage (2) that is provided with of air intake passage (3).
2. anti-clogging drilling rod according to claim 1 is characterized in that: described drilling rod body (1) outer wall is provided with projection (4).
3. anti-clogging drilling rod according to claim 1 and 2 is characterized in that: described air-out passage (2) is 1,2,3,4,5 or 6.
4. anti-clogging drilling rod according to claim 1 and 2 is characterized in that: the cross section of described air-out passage (2) is for circular or square or oval.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201907846U CN201671555U (en) | 2010-05-14 | 2010-05-14 | Anti-protrusion temperature reduction drill stem |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201907846U CN201671555U (en) | 2010-05-14 | 2010-05-14 | Anti-protrusion temperature reduction drill stem |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201671555U true CN201671555U (en) | 2010-12-15 |
Family
ID=43328967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201907846U Expired - Fee Related CN201671555U (en) | 2010-05-14 | 2010-05-14 | Anti-protrusion temperature reduction drill stem |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201671555U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102619475A (en) * | 2011-01-28 | 2012-08-01 | 崔钢明 | Alveolate drill stem |
-
2010
- 2010-05-14 CN CN2010201907846U patent/CN201671555U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102619475A (en) * | 2011-01-28 | 2012-08-01 | 崔钢明 | Alveolate drill stem |
| CN102619475B (en) * | 2011-01-28 | 2016-03-09 | 崔钢明 | A kind of honeycombed drilling rod |
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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: 20101215 Termination date: 20150514 |
|
| EXPY | Termination of patent right or utility model |