CN1908375A - Automatic controlled coal-putting comprehensive sampling hydraulic support - Google Patents
Automatic controlled coal-putting comprehensive sampling hydraulic support Download PDFInfo
- Publication number
- CN1908375A CN1908375A CN 200510089077 CN200510089077A CN1908375A CN 1908375 A CN1908375 A CN 1908375A CN 200510089077 CN200510089077 CN 200510089077 CN 200510089077 A CN200510089077 A CN 200510089077A CN 1908375 A CN1908375 A CN 1908375A
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- Prior art keywords
- coal
- hydraulic support
- caving
- pressure sensor
- improve
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Abstract
In present technique, the top coal hydraulic support only has one coal outlet which is operated by hand; the switch of coal outlet depends on the experience that watched by operator. The invention uses the gangue scanning detector and the pressure sensor to control the coal outlet, to improve the coal discharge effectively without affecting normal operation. The invention can automatically discharge coal to improve the pushing speed of working surface, and improve the recycle rate of coal resource. And it can confirm the safety production.
Description
1. technical field
The colliery underground mining.
2. background technology
For the super high seam underground mining of thickness greater than 3.5m, the tradition exploitation method is artificial false top separate zone production, not only the stope drift active workings engineering quantity is big, cost is high for this method, and lower leaf top board difficulty is controlled, efficient is low, and the easy spontaneous combustion in goaf is got angry between the productive life simultaneously.Along with science and technology development,, generally adopt whole layer full-seam mining for the super high seam of coal seam thickness less than 5m.And, then adopt top coal caving for the super high seam of coal seam thickness greater than 5m, especially the top coal caving technology has not only been saved cost of winning greatly, and has improved the single face output amount.For example, colliery, Yanzhou company top coal caving work plane in 2004 output reaches 6,400,000 tons, creates national coal mine work area per unit area yield tidemark.
China begins to design the top coal caving hydraulic support from nineteen eighty-two, and carries out pilot production in 1984 in Shenyang, Liaoning.After this, China Higher universities and colleges, R﹠D institution and designing institute have carried out comprehensive discussion and research to the top coal caving method from the production practice to the support Design.Aspect support Design, coal discharge outlet puts in a skylight, develops into tail beam flashboard formula coal discharge outlet by the initial caving shield back timber that puts in a skylight.The major advantage of caving shield Kaitian window-frame type is that the support resistance to overturning is good, and the major advantage of back timber Kaitian window-frame type is that work plane is saved a transporter, production system is simple, and tail beam flashboard formula coal discharge outlet frame type major advantage is that coal discharge outlet is big, and drawing effectiveness is good.Up to the present, all sublevel caving hydrau lic support coal discharge outlets all are manually-operated, and to put coal speed slow thereby cause, and drawing effectiveness is subjected to the restriction of operating personnel's experience.
This patent utilizes transporter spoil sniffer and poppet pressure sensor behind the frame, realizes that support puts the coal automation, makes full use of the top-coal caving face support and puts coal feature conserves top coal caving time.The realization of this patent has practical reference value widely to top coal caving.
3. summary of the invention
1) transporter spoil sniffer behind the installing rack of caving coal liquid industry support rear portion is in order to survey spoil ratio on the transporter.
2) at caving coal liquid industry support mounting bracket pressure sensor, in order to measure poppet pressure.
3) transporter spoil sniffer and poppet pressure sensor are used for controlling the coal discharge outlet of this and upper bracket behind the frame.
4. the specific embodiment
Spoil scanning probe device and pressure sensor control coal discharge outlet under the condition that does not influence the work plane conventional maintenance, realizes efficiently putting coal behind the frame, improves resource recovery.
The signal of spoil scanning probe device and pressure sensor is input in the special signal processor behind the frame, and signal processor is used for the electro hydraulic valve of control operation support coal discharge outlet, thereby realizes the automation of putting coal.
By zone, complex geological condition coal seam, can adopt normally used manual drawing coal technology.
Claims (4)
1. transporter gangue sniffer after caving roof coal hydraulic support is installed a stock.
2. at caving roof coal hydraulic support one sleeve pressure sensor is installed.
3. transporter gangue sniffer and pressure sensor are used for controlling the unlatching size of coal discharge outlet behind the frame, close fully when spoil surpasses certain proportion.
4. the realization top-coal caving face is put the coal automation, saves top coal caving time greatly and improves coal recovery rate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510089077 CN1908375A (en) | 2005-08-05 | 2005-08-05 | Automatic controlled coal-putting comprehensive sampling hydraulic support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510089077 CN1908375A (en) | 2005-08-05 | 2005-08-05 | Automatic controlled coal-putting comprehensive sampling hydraulic support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1908375A true CN1908375A (en) | 2007-02-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510089077 Pending CN1908375A (en) | 2005-08-05 | 2005-08-05 | Automatic controlled coal-putting comprehensive sampling hydraulic support |
Country Status (1)
| Country | Link |
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| CN (1) | CN1908375A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102704978A (en) * | 2012-06-29 | 2012-10-03 | 中国矿业大学 | High fully mechanized filling, mining and screening hydraulic support |
| CN105134276A (en) * | 2015-09-07 | 2015-12-09 | 神华集团有限责任公司 | Coal caving control system of steep-inclined super-thick coal seam short-wall sub-level caving working face |
| CN111779524A (en) * | 2020-06-30 | 2020-10-16 | 中国矿业大学 | Intelligent coal caving method for hydraulic support of fully mechanized caving face |
| CN113027505A (en) * | 2021-05-24 | 2021-06-25 | 天津美腾科技股份有限公司 | Multi-hydraulic support control method and device and multi-hydraulic support control system |
-
2005
- 2005-08-05 CN CN 200510089077 patent/CN1908375A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102704978A (en) * | 2012-06-29 | 2012-10-03 | 中国矿业大学 | High fully mechanized filling, mining and screening hydraulic support |
| CN102704978B (en) * | 2012-06-29 | 2014-12-10 | 中国矿业大学 | High fully mechanized filling, mining and screening hydraulic support |
| CN105134276A (en) * | 2015-09-07 | 2015-12-09 | 神华集团有限责任公司 | Coal caving control system of steep-inclined super-thick coal seam short-wall sub-level caving working face |
| CN111779524A (en) * | 2020-06-30 | 2020-10-16 | 中国矿业大学 | Intelligent coal caving method for hydraulic support of fully mechanized caving face |
| CN111779524B (en) * | 2020-06-30 | 2021-05-28 | 中国矿业大学 | Intelligent coal caving method for hydraulic support of fully mechanized caving face |
| CN113027505A (en) * | 2021-05-24 | 2021-06-25 | 天津美腾科技股份有限公司 | Multi-hydraulic support control method and device and multi-hydraulic support control system |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |