CN203769840U - 煤矿用瓦斯抽放封孔器 - Google Patents
煤矿用瓦斯抽放封孔器 Download PDFInfo
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- CN203769840U CN203769840U CN201420162762.7U CN201420162762U CN203769840U CN 203769840 U CN203769840 U CN 203769840U CN 201420162762 U CN201420162762 U CN 201420162762U CN 203769840 U CN203769840 U CN 203769840U
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- 239000003245 coal Substances 0.000 title abstract description 8
- 238000007789 sealing Methods 0.000 claims description 21
- 150000001875 compounds Chemical class 0.000 claims description 10
- 238000004891 communication Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 239000000203 mixture Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 14
- 229920002635 polyurethane Polymers 0.000 description 8
- 239000004814 polyurethane Substances 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 4
- 238000000605 extraction Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 229920002521 macromolecule Polymers 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000003566 sealing material Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 230000002950 deficient Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000007569 slipcasting Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
Description
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420162762.7U CN203769840U (zh) | 2014-04-04 | 2014-04-04 | 煤矿用瓦斯抽放封孔器 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420162762.7U CN203769840U (zh) | 2014-04-04 | 2014-04-04 | 煤矿用瓦斯抽放封孔器 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203769840U true CN203769840U (zh) | 2014-08-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420162762.7U Expired - Fee Related CN203769840U (zh) | 2014-04-04 | 2014-04-04 | 煤矿用瓦斯抽放封孔器 |
Country Status (1)
| Country | Link |
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| CN (1) | CN203769840U (zh) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105003224A (zh) * | 2015-07-23 | 2015-10-28 | 江苏中煤矿山设备有限公司 | 两段式封孔器及其钻孔取芯工艺 |
| CN105064946A (zh) * | 2015-07-23 | 2015-11-18 | 江苏中煤矿山设备有限公司 | 封孔器及其钻孔取芯工艺 |
-
2014
- 2014-04-04 CN CN201420162762.7U patent/CN203769840U/zh not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105003224A (zh) * | 2015-07-23 | 2015-10-28 | 江苏中煤矿山设备有限公司 | 两段式封孔器及其钻孔取芯工艺 |
| CN105064946A (zh) * | 2015-07-23 | 2015-11-18 | 江苏中煤矿山设备有限公司 | 封孔器及其钻孔取芯工艺 |
| CN105003224B (zh) * | 2015-07-23 | 2017-12-29 | 郑州煤电股份有限公司告成煤矿 | 两段式封孔器及其钻孔取芯工艺 |
| CN105064946B (zh) * | 2015-07-23 | 2017-12-29 | 郑州煤电股份有限公司告成煤矿 | 封孔器及其钻孔取芯工艺 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: ZHENGZHOU YUANJIAN SAFETY EQUIPMENT CO., LTD. Free format text: FORMER NAME: ZHENGZHOU YUANJIAN COAL MINE EQUIPMENT CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: Xinmi City Town Village 452300 meters persimmon Bay Henan city of Zhengzhou Province Patentee after: ZHENGZHOU YUANJIAN SAFETY EQUIPMENT CO., LTD. Address before: Xinmi City Town Village 452300 meters persimmon Bay Henan city of Zhengzhou Province Patentee before: Zhengzhou Yuanjian Coal Mine Equipment Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140813 Termination date: 20180404 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |