CN104790989A - Device and method for releasing anchoring of mining chemical anchor rope - Google Patents
Device and method for releasing anchoring of mining chemical anchor rope Download PDFInfo
- Publication number
- CN104790989A CN104790989A CN201510134723.5A CN201510134723A CN104790989A CN 104790989 A CN104790989 A CN 104790989A CN 201510134723 A CN201510134723 A CN 201510134723A CN 104790989 A CN104790989 A CN 104790989A
- Authority
- CN
- China
- Prior art keywords
- anchor
- anchor cable
- cartridge bag
- special
- mozzle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000005065 mining Methods 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000000126 substance Substances 0.000 title claims abstract description 18
- 238000004873 anchoring Methods 0.000 title abstract description 8
- 230000003578 releasing effect Effects 0.000 title abstract 6
- 239000002253 acid Substances 0.000 claims abstract description 25
- 238000005260 corrosion Methods 0.000 claims abstract description 6
- 230000007797 corrosion Effects 0.000 claims abstract description 5
- 239000002699 waste material Substances 0.000 claims abstract description 4
- 230000003111 delayed effect Effects 0.000 claims description 10
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 6
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 4
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 3
- 238000000605 extraction Methods 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 229910017604 nitric acid Inorganic materials 0.000 claims description 3
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 5
- 239000000203 mixture Substances 0.000 description 4
- 239000003245 coal Substances 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 3
- 230000003628 erosive effect Effects 0.000 description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000008093 supporting effect Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
- Piles And Underground Anchors (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a device and method for releasing anchoring of a mining chemical anchor rope. The device and method are suitable for roadway anchoring releasing operation. The device mainly comprises four parts including a chemical bag, a flow guide pipe, a specially-made anchor ring and a throttle valve. Acid liquor in the chemical bag is led into a gap between the specially-made anchor ring and the anchor rope through the flow guide pipe, the anchor rope is corroded and weakened through the acid liquor, and waste liquor generated after a reaction flows out through a flow guide hole in the lower side of the specially-made anchor ring. Then, the anchoring releasing effect is achieved through the hysteresis mining pressure. The corrosion speed can be set by controlling the flowing speed of the throttle valve or adjusting the concentration of the acid liquor of the chemical bag to adjust the anchor rope failure time. By means of the device, the anchoring releasing construction technology is simplified, and the labor intensity of workers is reduced; in addition, the anchoring failure time can be artificially controlled, the safety of the anchoring releasing procedure is improved, and the device is simple in structure and easy to popularize.
Description
Technical field
The present invention relates to a kind of mining chemical anchor cable and move back anchor device and method, what be particularly useful for tunnel moves back anchor operation.
Background technology
The supporting of coal road bolting rope is the support pattern that China generally adopts, and it has the advantages such as easy and simple to handle, supporting effect is good, but also can cause the outstanding top of face end larger area, and cause termination methane accumulation, this brings great hidden danger to top board and gas administration.Thus how to ensure that top board is not caving before work plane pushes through, being caving in time after work plane pushes through is the problem that coal roadway support needs solution badly.For this reason, often carry out in coal mining activity process moving back anchor operation.
Generally adopt mechanical type to move back anchor at present, mainly there is following problem: after moving back anchor, top board loses anchored force immediately, easily roof fall occurs; Move back anchor process to stretch the meaning, add bulk caving risk; Move back anchor weak effect, efficiency is low, and anchor cable decortication takes place frequently; Move back anchor arrangement heavier, not easy to operate, cost is higher, uses limited.Therefore need badly and propose a kind of Novel disk withdrawal anchor device and method, solve an above-mentioned difficult problem.
Summary of the invention
Technical problem: the object of the invention is the defect of moving back anchor method for existing machinery formula, proposes a kind of mining chemical anchor cable and moves back anchor device and method, utilize the chemical anchor cable manual control anchoring body out-of-service time, thus reach the effect that safety moves back anchor.
Technical scheme: mining chemical anchor cable of the present invention moves back anchor device, comprise and be set on lockset on anchor cable revealed section and pallet, special anchor ring is provided with between described lockset and pallet, the radial direction of described special anchor ring has asymmetric two pod apertures up and down, mozzle is provided with in a pod apertures on top, mozzle is connected with the cartridge bag be located on top board, and cartridge bag is the mix acid liquor of 5 ~ 12mol/L built with concentration; Described mozzle is provided with choke valve.
Use the mining chemical anchor cable of said apparatus to move back anchor method, comprise the steps:
A. the cartridge bag be connected with mozzle and special anchor ring is prepared on ground;
When b. installing anchor cable, be arranged between lockset and pallet by special anchor ring, other operation is identical with anchor cable installation procedure;
C., during working face extraction, delayed hydraulic support column one cuts dark, is fixed on by cartridge bag on the top board of anchor cable pallet outside;
D. the pod apertures of one end of mozzle with special anchor ring top is connected; Acid solution in cartridge bag is flow automatically under gravity, and the pod apertures through mozzle, special anchor ring top enters in the space of anchor cable and special anchor ring, corrodes anchor cable; Reacted waste liquid is flowed out by the pod apertures on the downside of special anchor ring;
E. install warning line at delayed hydraulic support column 0.5m place, forbid that personnel cross, prevent the mix acid liquor drippage harm workers ' health in cartridge bag;
F. anchor cable is by after acid liquid corrosion, and tensile strength reduces greatly, utilizes delayed mining pressure afterwards, realizes moving back anchor;
G. treat that hydraulic support is pushed ahead one and cut dark, repeat c, d, e, until complete the back production of whole work plane.
The volume of described cartridge bag is 100 ~ 500mL, and the height of cartridge bag is identical with anchor cable pallet height.
Acid solution hydrochloric acid, nitric acid or sulfuric acid solution in described cartridge bag.
Described special anchor ring external diameter 5 ~ 30mm larger than anchor cable lock external diameter, internal diameter 5 ~ 10mm larger than anchor cable diameter.
By regulating choke valve setting acid solution flow velocity, the out-of-service time controlling rope erosion is between 1 ~ 12 hour.
Beneficial effect: owing to have employed technique scheme, the present invention compared with prior art tool has the following advantages:
1. utilize strong acid fast erosion anchor cable, weaken the tensile strength of anchor cable.Utilize delayed mining pressure afterwards, reach and destroy the effect of anchor cable, save strong acid consumption, and workman to move back anchor operating environment safer;
2. by controlling acid strength or flow velocity, the controlled of failure of cable time can be realized;
3. move back anchor ring large compared with lockset diameter, reduce the stress of lockset to pallet and concentrate, improve the force environment of pallet;
4. structure of the present invention is simple, is easy to operation, reduces labour intensity, simplify and move back anchor construction technology, is easy to promote.
Accompanying drawing explanation
Fig. 1 is anchor cable sectional structure schematic diagram of the present invention;
Fig. 2 (a) is the top view of the special anchor ring of the present invention;
Fig. 2 (b) is the sectional drawing of the special anchor ring of the present invention.
In figure: 1-anchor cable; 2-cartridge bag; 3-mozzle; 4-choke valve; 5-pod apertures; 6-lockset; The special anchor ring of 7-; 8-pallet; 9-top board.
Detailed description of the invention
Below in conjunction with accompanying drawing, one embodiment of the present of invention are further described:
Mining chemical anchor cable of the present invention moves back anchor device, forms primarily of cartridge bag 2, mozzle 3, stream valve 4, lockset 6, special anchor ring 7 and joint pallet 8.Lockset 6 and pallet 8 are set on anchor cable 1 revealed section, described special anchor ring 7 is located between lockset 6 and pallet 8, the radial direction of described special anchor ring 7 has asymmetric two pod apertures 5 up and down, mozzle 3 is provided with in a pod apertures 5 on top, mozzle 3 is connected with the cartridge bag 2 be located on top board 9, and cartridge bag 2 is the mix acid liquor of 5 ~ 12mol/L built with concentration; Described mozzle 3 is provided with choke valve 4.
Mining chemical anchor cable of the present invention moves back anchor method, and step is as follows:
A. the cartridge bag 2 be connected with mozzle 3 and special anchor ring 7 is prepared on ground; The volume of described cartridge bag 2 is 100 ~ 500mL, and the height of cartridge bag 2 is highly identical with anchor cable pallet 8.Cartridge bag 2 is the hydrochloric acid of 5 ~ 12mol/L, nitric acid or sulfuric acid solution built with concentration, mozzle 3 is equipped with choke valve 4, prepares special anchor ring 7 simultaneously, described special anchor ring 7 external diameter 5 ~ 30mm larger than anchor cable lock external diameter, internal diameter 5 ~ 10mm larger than anchor cable diameter.Have two pod apertures 5 on the top of side of special anchor ring 7 and the bottom of offside, special anchor ring 7, through anti-corrosion treatment, does not react with mixed acid.
When b. installing anchor cable 1 during crossheading driving, be arranged between lockset 6 and pallet 8 by special anchor ring 7, other operation is identical with anchor cable 1 installation procedure;
C., during working face extraction, delayed hydraulic support column one cuts dark 1m, and the cartridge bag 2 that will be connected to mozzle 3 is fixed on the top board 9 of anchor cable pallet 8 outside;
D. the pod apertures 5 of one end of mozzle 3 with special anchor ring 7 top is connected; Acid solution in cartridge bag 2 is flow automatically under gravity, and the pod apertures 5 through mozzle 3, special anchor ring 7 top enters in the space of anchor cable 1 and special anchor ring 7, corrodes anchor cable 1; Reacted waste liquid is flowed out by the pod apertures 5 on the downside of special anchor ring 7; Acid solution flow velocity is set, to control the rope erosion out-of-service time by regulating choke valve 4; By regulating choke valve 4 to set acid solution flow velocity, the out-of-service time controlling anchor cable 1 corrosion is between 1 ~ 12 hour.
E. install warning line at delayed hydraulic support column 0.5m place, forbid that personnel cross, prevent the mix acid liquor drippage harm workers ' health in cartridge bag 2;
F. anchor cable 1 is by after acid liquid corrosion, and tensile strength reduces greatly, utilizes delayed mining pressure afterwards, realizes moving back anchor effect;
G. treat that hydraulic support is pushed ahead one and cut dark, repeat c, d, e, until complete the back production of whole work plane.
Claims (5)
1. a mining chemical anchor cable moves back anchor device, comprise and be set on lockset (6) on anchor cable (1) revealed section and pallet (8), it is characterized in that: between described lockset (6) and pallet (8), be provided with special anchor ring (7), the radial direction of described special anchor ring (7) has asymmetric two pod apertures (5) up and down, mozzle (3) is provided with in a pod apertures (5) on top, mozzle (3) is connected with the cartridge bag (2) be located on top board (9), and cartridge bag (2) is the mix acid liquor of 5 ~ 12mol/L built with concentration; Described mozzle (3) is provided with choke valve (4).
2. use the mining chemical anchor cable of device described in claim 1 to move back an anchor method, it is characterized in that comprising the steps:
A. the cartridge bag (2) be connected with mozzle (3) and special anchor ring (7) is prepared on ground;
When b. installing anchor cable (1), be arranged on by special anchor ring (7) between lockset (6) and pallet (8), other operation is identical with anchor cable (1) installation procedure;
C. during working face extraction, delayed hydraulic support column one cuts dark, is fixed on by cartridge bag (2) on the outside top board (9) of anchor cable pallet (8);
D. one end of mozzle (3) is connected with the pod apertures (5) on special anchor ring (7) top; Acid solution in cartridge bag (2) is flow automatically under gravity, and the pod apertures (5) through mozzle (3), special anchor ring (7) top enters in the space of anchor cable (1) and special anchor ring (7), corrodes anchor cable (1); Reacted waste liquid is flowed out by the pod apertures (5) of special anchor ring (7) downside;
E. install warning line at delayed hydraulic support column 0.5 m place, forbid that personnel cross, prevent the mix acid liquor drippage harm workers ' health in cartridge bag (2);
F. anchor cable (1) is by after acid liquid corrosion, and tensile strength reduces greatly, utilizes delayed mining pressure afterwards, realizes moving back anchor;
G. treat that hydraulic support is pushed ahead one and cut dark, repeat c, d, e, until complete the back production of whole work plane.
3. the mining chemical anchor cable of one according to claim 2 moves back anchor method, it is characterized in that: the volume of described cartridge bag (2) is 100 ~ 500mL, and the height of cartridge bag (2) is highly identical with anchor cable pallet (8).
4. the one according to Claims 2 or 3 is mining, and chemical anchor cable moves back anchor method, it is characterized in that: acid solution hydrochloric acid, nitric acid or sulfuric acid solution in described cartridge bag (2).
5. the mining chemical anchor cable of one according to claim 2 moves back anchor device and method, it is characterized in that: by regulating choke valve (4) setting acid solution flow velocity, the out-of-service time that control anchor cable (1) is corroded is between 1 ~ 12 hour.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510134723.5A CN104790989B (en) | 2015-03-25 | 2015-03-25 | Device and method for releasing anchoring of mining chemical anchor rope |
| AU2015387576A AU2015387576B2 (en) | 2015-03-25 | 2015-12-21 | Mining chemical anchor cable anchor-unhooking apparatus and method |
| PCT/CN2015/098032 WO2016150211A1 (en) | 2015-03-25 | 2015-12-21 | Mining chemical anchor cable anchor-unhooking apparatus and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510134723.5A CN104790989B (en) | 2015-03-25 | 2015-03-25 | Device and method for releasing anchoring of mining chemical anchor rope |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104790989A true CN104790989A (en) | 2015-07-22 |
| CN104790989B CN104790989B (en) | 2017-04-12 |
Family
ID=53556123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510134723.5A Active CN104790989B (en) | 2015-03-25 | 2015-03-25 | Device and method for releasing anchoring of mining chemical anchor rope |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN104790989B (en) |
| AU (1) | AU2015387576B2 (en) |
| WO (1) | WO2016150211A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016150211A1 (en) * | 2015-03-25 | 2016-09-29 | 中国矿业大学 | Mining chemical anchor cable anchor-unhooking apparatus and method |
| CN114673538A (en) * | 2022-04-21 | 2022-06-28 | 天地科技股份有限公司 | Anchor cable withdrawal device and anchor cable withdrawal method |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111272553B (en) * | 2020-03-16 | 2023-06-02 | 天地科技股份有限公司 | Anchor rod stress corrosion test device, in-situ mechanical test system and method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4732059A (en) * | 1986-12-30 | 1988-03-22 | A.T. & G. Company | Driver for reinforcement bar chemical anchor |
| JP2009256881A (en) * | 2008-04-11 | 2009-11-05 | E Planner Kk | Construction method of net for preventing fall of exfoliation concrete |
| CN102644470A (en) * | 2012-04-18 | 2012-08-22 | 李治中 | General energy-saving quick anchoring method and general energy-saving quick anchor rod |
| CN202544884U (en) * | 2012-04-18 | 2012-11-21 | 李治中 | Simple, quick and reliable anchor rod |
| CN203655322U (en) * | 2014-01-21 | 2014-06-18 | 中国矿业大学 | Anchor removing device for anchor rope |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4162133A (en) * | 1977-09-21 | 1979-07-24 | The Eastern Company | Resin reinforced expansion anchor and method of installation |
| WO2008051728A2 (en) * | 2006-10-19 | 2008-05-02 | Jennmar Corporation | A breakable rock bolt |
| CN201650323U (en) * | 2010-03-27 | 2010-11-24 | 中国矿业大学 | Grouting anchor rope |
| CN103590843B (en) * | 2013-11-21 | 2015-10-21 | 山东大学 | A kind of full-thread bolt pretightning force bringing device and method of operating can moving back anchor fast |
| CN203559915U (en) * | 2013-11-21 | 2014-04-23 | 山东大学 | Full-thread anchor bolt pre-tightening force applying device capable of automatically returning anchor |
| CN104790989B (en) * | 2015-03-25 | 2017-04-12 | 中国矿业大学 | Device and method for releasing anchoring of mining chemical anchor rope |
-
2015
- 2015-03-25 CN CN201510134723.5A patent/CN104790989B/en active Active
- 2015-12-21 AU AU2015387576A patent/AU2015387576B2/en not_active Ceased
- 2015-12-21 WO PCT/CN2015/098032 patent/WO2016150211A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4732059A (en) * | 1986-12-30 | 1988-03-22 | A.T. & G. Company | Driver for reinforcement bar chemical anchor |
| JP2009256881A (en) * | 2008-04-11 | 2009-11-05 | E Planner Kk | Construction method of net for preventing fall of exfoliation concrete |
| CN102644470A (en) * | 2012-04-18 | 2012-08-22 | 李治中 | General energy-saving quick anchoring method and general energy-saving quick anchor rod |
| CN202544884U (en) * | 2012-04-18 | 2012-11-21 | 李治中 | Simple, quick and reliable anchor rod |
| CN203655322U (en) * | 2014-01-21 | 2014-06-18 | 中国矿业大学 | Anchor removing device for anchor rope |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016150211A1 (en) * | 2015-03-25 | 2016-09-29 | 中国矿业大学 | Mining chemical anchor cable anchor-unhooking apparatus and method |
| CN114673538A (en) * | 2022-04-21 | 2022-06-28 | 天地科技股份有限公司 | Anchor cable withdrawal device and anchor cable withdrawal method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104790989B (en) | 2017-04-12 |
| AU2015387576B2 (en) | 2017-12-07 |
| AU2015387576A1 (en) | 2017-03-16 |
| WO2016150211A1 (en) | 2016-09-29 |
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Address after: 221116 Research Institute of China University of Mining and Technology,, Jiangsu Applicant after: China University of Mining & Technology Address before: 221116 Research Institute, China University of Mining and Technology, Xuzhou University, Jiangsu, China, Applicant before: China University of Mining & Technology |
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