CN103362547A - Underground feeding buffer for coal mine filling mining - Google Patents
Underground feeding buffer for coal mine filling mining Download PDFInfo
- Publication number
- CN103362547A CN103362547A CN2012101101621A CN201210110162A CN103362547A CN 103362547 A CN103362547 A CN 103362547A CN 2012101101621 A CN2012101101621 A CN 2012101101621A CN 201210110162 A CN201210110162 A CN 201210110162A CN 103362547 A CN103362547 A CN 103362547A
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- receiver
- coal mine
- filling
- underground
- receiving plate
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Abstract
The invention discloses an underground feeding buffer for coal mine filling mining, which comprises a material receiving plate (1), a base (2), foundation bolts (3), arc spiral baffles (4) and a prestored material (5), wherein the material receiving plate (1) is made of a 16Mn steel plate; the periphery of the top end of the material receiving plate (1) is welded with the arc spiral baffles (4); the feeding buffer is fixed in a roadway of an underground stock bin by the foundation bolts (3) through bolt holes in the base (2); and a center of the buffer is aligned to that of a throwing pipe. Before feeding, the similar material (5) is pre-stored in the material receiving plate (1), and when a filling material impacts on the prestored material (5), breaking and movement occur, and a large amount of energy is absorbed, so that a speed and impact kinetic energy of the filling material are reduced. The problem of a potential safety hazard due to the fact that the filling material is high in speed and great in impact kinetic energy when thrown down to a mine from the ground in a coal mine filling mining process is solved, and the underground feeding buffer is simple in structure and convenient to manufacture.
Description
Technical field
The present invention relates to the buffer device that feeds intake under a kind of coal mine filling recovery well.
Background technology
Along with China's downhole coal mine exploitation scale and mining rate constantly increase, the disaster that causes because of mining is on the rise.After subterranean coal is adopted sky, overlying strata produce and move, are out of shape and destroy, increase along with the goaf area, the scope of strata movement also can correspondingly increase, the strata movement scope develops into the earth's surface after the goaf area reaches certain limit, make the earth's surface produce mobile, distortion and sinking, thereby cause ground structure and facility destruction, surface collapse, land resources waste etc.Simultaneously, a large amount of gangues that discharge in recovery process in the colliery are piled up on ground, land occupation not only, and environment caused severe contamination.For tackling the problem that occurs in the above-mentioned process of coal mining, the coal mine filling exploitation more and more comes into one's own and adopts.
The roof control method of utilizing filling mining exactly realizes reducing ground settlement, then reduces the production technique of earth's surface distortion.Its essence is that materials such as utilizing gangue, sand, rubble, stove quarrel carries out filling to underground goaf, so as to supporting country rock, reach the purpose that reduces sedimentation.Use filling mining and also can preferably preventive and therapeutic effect be arranged to coalmine ventilation, gas, the safety problems such as anti-fire extinguishing, roof pressure and impact harm; Reclaiming coal resource to greatest extent; Be conducive to the protection of ground structure, reduce the effects such as destruction to ground environment.
An important procedure of filling mining is rendered to the down-hole with satisfactory attal such as gangue, sand, stove quarrel, flyash etc. by pipeline exactly from ground, then utilize these attals that filling is carried out in the goaf.At present, attal commonly used utilizes the existing gangue in colliery exactly, and suitably fragmentation is rendered in the underworkings feed bin by pipeline.When ground attal vertically drops into the down-hole from the height of hundreds of rice even upper km, under Action of Gravity Field, attal has very high speed and larger impact kinetic energy when arriving underworkings, if do not take appropriate measure, not only the facilities such as underground operators, feed bin are brought harm, and other system of down-hole and whole mine are brought potential safety hazard.Therefore, how the colliery lowers the speed of the underground filling material of jettisoninging from ground in promotion and implementation filling mining process, safety, catch attal steadily, it is steadily put in storage, be the new problem that runs in the filling mining process.
Summary of the invention
When solving that attal is jettisoninged the underworkings feed bin in the coal mine filling recovery process from ground, because its speed is fast, the large security hidden trouble that brings of impact kinetic energy, the invention provides the snubber that feeds intake under a kind of coal mine filling recovery well of new structure, the needs of satisfy attal safety, efficiently jettisoninging.
The snubber that feeds intake under the coal mine filling recovery well of the present invention is comprised of receiver, base, stone bolt, arc helical baffle etc.Receiver is made by relatively wear-resisting 16Mn steel plate, and shape is designed to a hemisphere face container, opening upwards, and make the cladding Wear-resistant Treatment on its surface, around the top of receiver, be welded with the arc helical baffle.The base upper end links to each other with receiver, and the lower end is fixed in the feed bin tunnel, down-hole by stone bolt.
The present invention solves the technical scheme that its technical problem takes: behind the center of the centrally aligned commissioning pipe of the snubber that will feed intake; after snubber is fixed on feed bin tunnel, down-hole feeding intake with stone bolt; in hemisphere face receiver container, deposit the similar material that some are jettisoninged in advance; when the attal that falls from ground surface high speed impacts the material that prestores in the receiver; material in the receiver is subject to occuring broken and motion after the enormous impact; absorb part energy; because the attal that falls at a high speed is not directly to impact on the surface of receiver; receiver and the whole snubber that feeds intake there is protective effect; simultaneously, splash also less.Along with constantly carrying out of jettisoninging, when the solid accumulation in the receiver is more, under the lasting impact of falling material, material meeting disturbance or deceleration in the receiver are splashed, stopping of arc helical baffle lost most of kinetic energy around the material that splashes was subjected to above the receiver, then fall in the feed bin by the gap between the arc helical baffle, thereby play the effect of constraint high speed attal, the people who avoids the high speed falling material that erosion and the splash of feed bin are hindered, realize the soft landing of attal and automatically rest in peace, make things convenient for collection, transportation and the management of attal.
The invention has the beneficial effects as follows: solved when attal is jettisoninged the down-hole from ground in the coal mine filling recovery process because its speed is high, impact kinetic energy is larger, the security hidden trouble that brings, and simple in structure, easily manufactured.
Description of drawings
The invention will be further described below in conjunction with the drawings and specific embodiments.
The specific embodiment
As shown in the figure, by the bolt hole on the base (2), with stone bolt (3) snubber that feeds intake is fixed in the tunnel of down-hole feed bin, makes the center of the snubber that feeds intake face the center of aboveground commissioning pipe.
Before enforcement feeds intake, in hemisphere face receiver (1), deposit the similar material (5) that some are jettisoninged in advance, when the attal that falls from ground surface high speed impacts the inner material that prestores of receiver (1) (5), the inner material that prestores (5) of receiver (1) is hit broken and motion can occur, and absorbs most of energy.Because the attal that falls at a high speed is not directly to impact on receiver (1) surface, and receiver (1) and the whole snubber device that feeds intake are had protective effect, splashes less yet.When the solid accumulation in the receiver (1) is more, under the impact of high speed falling material, material meeting disturbance or deceleration in the receiver (1) are splashed, the stopping of arc helical baffle (4) of welding lost part kinetic energy around the part of splashing was subjected to above the receiver (1), then fall in the feed bin by the gap between the arc helical baffle (4), realize the soft landing of attal and automatically rest in peace, be convenient in the filling mining process from collection, transportation and the management of the high-speed material of down-hole input.
Claims (4)
1. snubber feeds intake under the coal mine filling recovery well, comprise receiver (1), base (2), stone bolt (3), arc helical baffle (4), the material that prestores (5) etc., it is characterized in that: receiver (1) is fixed on the base (2), and arc helical baffle (4) is welded on around the upper end of receiver (1).
2. the snubber that feeds intake according to claim 1, it is characterized in that: receiver (1) is a hemisphere face container, opening upwards.
3. the snubber that feeds intake according to claim 2, it is characterized in that: receiver (1) is made by the 16Mn steel plate.
4. the snubber that feeds intake according to claim 2, it is characterized in that: the cladding Wear-resistant Treatment is made on its surface of receiver (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210110162.1A CN103362547B (en) | 2012-04-07 | 2012-04-07 | Feed intake under a kind of coal mine filling recovery well snubber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210110162.1A CN103362547B (en) | 2012-04-07 | 2012-04-07 | Feed intake under a kind of coal mine filling recovery well snubber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103362547A true CN103362547A (en) | 2013-10-23 |
| CN103362547B CN103362547B (en) | 2015-09-09 |
Family
ID=49364726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210110162.1A Expired - Fee Related CN103362547B (en) | 2012-04-07 | 2012-04-07 | Feed intake under a kind of coal mine filling recovery well snubber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103362547B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104110269A (en) * | 2014-06-05 | 2014-10-22 | 江苏中矿立兴能源科技有限公司 | Self-balancing buffer device for solid cut and fill |
| CN110344878A (en) * | 2019-08-12 | 2019-10-18 | 淮北工业建筑设计院有限责任公司 | A kind of spoil feeds intake the down-hole buffering mechanism of well |
| CN111287790A (en) * | 2020-03-05 | 2020-06-16 | 安徽省矿业机电装备有限责任公司 | Underground feeding buffer for coal mine filling and mining |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0664374A1 (en) * | 1994-01-25 | 1995-07-26 | Commissariat A L'energie Atomique | Apparatus for disposal of material in a drilling well |
| CN201318193Y (en) * | 2008-12-04 | 2009-09-30 | 王宏奇 | Buffer |
| CN101566072A (en) * | 2009-05-22 | 2009-10-28 | 中国矿业大学 | Large vertical depth solid feeding system and large vertical depth solid feeding process for filling extracted coal |
| CN101613022A (en) * | 2009-01-13 | 2009-12-30 | 朱耀平 | Buffer breakage-proof flat bottom silo |
| CN202673355U (en) * | 2012-04-07 | 2013-01-16 | 安徽省矿业机电装备有限责任公司 | Coal mine mining with filling underground feed buffer |
-
2012
- 2012-04-07 CN CN201210110162.1A patent/CN103362547B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0664374A1 (en) * | 1994-01-25 | 1995-07-26 | Commissariat A L'energie Atomique | Apparatus for disposal of material in a drilling well |
| CN201318193Y (en) * | 2008-12-04 | 2009-09-30 | 王宏奇 | Buffer |
| CN101613022A (en) * | 2009-01-13 | 2009-12-30 | 朱耀平 | Buffer breakage-proof flat bottom silo |
| CN101566072A (en) * | 2009-05-22 | 2009-10-28 | 中国矿业大学 | Large vertical depth solid feeding system and large vertical depth solid feeding process for filling extracted coal |
| CN202673355U (en) * | 2012-04-07 | 2013-01-16 | 安徽省矿业机电装备有限责任公司 | Coal mine mining with filling underground feed buffer |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104110269A (en) * | 2014-06-05 | 2014-10-22 | 江苏中矿立兴能源科技有限公司 | Self-balancing buffer device for solid cut and fill |
| CN110344878A (en) * | 2019-08-12 | 2019-10-18 | 淮北工业建筑设计院有限责任公司 | A kind of spoil feeds intake the down-hole buffering mechanism of well |
| CN111287790A (en) * | 2020-03-05 | 2020-06-16 | 安徽省矿业机电装备有限责任公司 | Underground feeding buffer for coal mine filling and mining |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103362547B (en) | 2015-09-09 |
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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Granted publication date: 20150909 Termination date: 20160407 |