WO2010102546A1 - 定向开采石料的方法及其使用的膨胀头元件 - Google Patents
定向开采石料的方法及其使用的膨胀头元件 Download PDFInfo
- Publication number
- WO2010102546A1 WO2010102546A1 PCT/CN2010/070891 CN2010070891W WO2010102546A1 WO 2010102546 A1 WO2010102546 A1 WO 2010102546A1 CN 2010070891 W CN2010070891 W CN 2010070891W WO 2010102546 A1 WO2010102546 A1 WO 2010102546A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- expansion
- expansion head
- stone
- head element
- rock
- Prior art date
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C37/00—Other methods or devices for dislodging with or without loading
- E21C37/06—Other methods or devices for dislodging with or without loading by making use of hydraulic or pneumatic pressure in a borehole
- E21C37/10—Devices with expanding elastic casings
Definitions
- the present invention relates to a method of orienting mined stone and an expansion head element therefor, and more particularly to a non-blasting directional quarrying method for mining natural stone and an expansion head element used in the method, the expansion head element being commonly referred to as a rock breaker. Background technique
- the high-pressure water pump, the rotary joint, the rotary motor and the sealing device are installed.
- the sealing device is installed in the rock orifice to seal the high-pressure water injected into the rock hole, so that the high-pressure water pressure is continuously increased, and the direct contact with the rock hole is utilized.
- the high pressure water breaks the rock.
- the technical problem to be solved by the present invention is to provide a method for orienting stone materials in accordance with the deficiencies of the prior art, which can perform directional cracking on various stone materials, concrete materials or coal mines.
- This method does not require large machinery, and can be used to mine stone only by using a manual hydraulic pump.
- the operation steps are greatly simplified, the production efficiency is improved, the labor intensity is reduced, and the time is small.
- a method for directional mining of stone materials comprising the steps of: drilling a stone on a stone wall with a thin wall drilling machine, placing an expansion head element in the drilled hole; and connecting the working medium source to the working medium inlet of the expansion head element,
- the working medium exerts pressure to enlarge the volume of the expansion hose in the expansion head element, and the deformation of the expansion hose transmits an orientation force to the bushing slider and the bushing housing, the orientation force acting uniformly and effectively on the hole of the hole in which the expansion head element is placed
- the stone is directionally cracked; when a crack is formed in the stone, the pressure of the working medium is reduced to zero, and the expansion head element returns to the initial state;
- the expansion head element is a cylindrical body having an aspect ratio of 4:1 to 25 : 1.
- the above-mentioned drill diameters for thin-walled rigs can be selected from ⁇ 20- ⁇ 100 to meet the different hole diameter requirements of expansion head components (commonly known as: crackers).
- the thin-walled rig itself is light in weight, low in power, low in price, simple in operation, high in drilling precision, fast in speed, and suitable for use with expansion head components.
- the above-mentioned expansion head element (cracker) can generate a large directional force in the hole to effectively directional cracking of the surrounding hard objects.
- the present invention also provides an expansion head member used in the above-described directional mining stone method, which has a simple structure and is easy to operate, improves production efficiency, reduces labor intensity, and requires less time.
- the expansion head element used in the directional mining stone method provided by the present invention comprises an expansion hose fixed at both ends by a wire plug, and an outer portion of the expansion hose is provided with a bushing shell, and the bushing shell is a two-shell structure
- the plugs at both ends are respectively fixed with the upper cover and the lower cover, and both ends of the bushing housing are elastically connected with the upper cover and the lower cover; and the expansion hose and the bushing housing are further provided with a lining
- the sleeve is provided with an elastic sealing member at the upper and lower ends of the expansion hose; the length to diameter ratio of the expansion head member is 4:1 to 25:1.
- the present invention does not require a large machine, and can only use the manual hydraulic pump to mine the stone. Compared with the prior art cracking technology, the operation steps are greatly simplified, the production efficiency is improved, the labor intensity is reduced, and the time is reduced. . Environmentally friendly, noise-free, dust-free, safe, easy to operate, easy to maintain, low energy consumption, and energy saving.
- Figure 1 is a schematic view showing the state of use of the expansion head member
- Figure 2 is a schematic view of the appearance of the expansion head member
- Figure 3 is a schematic view showing the working state of the expansion hose in the expansion head member
- Figure 4 is a schematic view showing the overall structure of the expansion head member
- Figure 5 is a cross-sectional view of the head cover of Figure 4.
- Figure 6 is a partial enlarged view of a portion A in Figure 5.
- Handle 1 upper cover 2, positioning locking screw 3, top wire 4, outer joint 5, copper washer 6, wire plug 7, 24, pullover cap 8, sleeve cover 9, elastic seal 10, hook spring 11, Working medium inlet 12, working medium outlet 13, spring 14, spherical body 15, curved control device 16, adjusting screw 17, bushing slider 18, bushing housing 19, expansion hose 20, tail cap 21, sealing screw 22 , the lower cover 23 ;
- Manual hydraulic pump 101 expansion head member 102, stone 103, high pressure rubber tube 104, energy distributor 105, split surface 106, housing 201, liquid medium 202.
- Figure 1 is a schematic view showing the state of use of the expansion head member.
- An expansion head member 102 is placed in the drilled hole of the stone 103, and the expansion head member 102 is transferred by the high pressure rubber tube 104 using a manual hydraulic pump 101.
- the expansion head element 102 can be connected in a plurality of parallel and/or series manners according to actual needs, and then placed in the hole drilled in the stone 103, by being disposed between the manual hydraulic pump 101 and the high pressure rubber tube 104.
- the energy distributor 105 provides a working medium for the plurality of expansion head elements 102. The orientation force is released through the expansion head to uniformly and effectively act on the wall of the stone hole, and the stone is directionally cracked at the crack surface 106.
- FIG. 2 is a schematic view of the appearance of the expansion head member 102.
- the expansion head housing is made of steel, and the two semi-annular housings 201 function to transmit internal pressure energy and change the direction of the force.
- the accumulation and transfer of energy is carried by the manual hydraulic pump 101 to transport the liquid medium 202 through the high pressure rubber tube 104 to the expansion hose 20 of the expansion head member (see Fig. 3).
- the pressure of the liquid medium expands the volume of the elastomeric chamber, and by the deformation of the expansion hose 20, an directional force is transmitted to the joint elements of the rock breaker housing and the support insert to cause the stone to be directionally cracked.
- FIG. 4 is a schematic view showing the overall structure of an expansion head member.
- the present invention provides a An expansion head member for mining stone, comprising an expansion hose 20 fixed at both ends by wire plugs 7, 24, and an outer portion of the expansion hose 20 is provided with a bushing housing 19, which is a two-shell structure
- the plugs 7, 24 at both ends are respectively fixed to the upper cover 2 and the lower cover 23, and both ends of the bushing housing 19 are elastically connected with the upper cover 2 and the lower cover 23; the expansion hose 20 and the lining
- a bushing slider 18 is further disposed between the sleeves 19; the upper and lower ends of the expansion hose 20 are provided with an elastic sealing member 10.
- the aspect ratio of the expansion head element 102 is 4:1 to 25:1, and the preferred aspect ratio is 4:1 to 8:1.
- a ferrule cover 9 is disposed between the elastic sealing member 10 and the bushing slider 18.
- the edge of the inner end of the end cap 9 is chamfered to form a slanting surface, and the inclined surface is disposed corresponding to the shape of the end surface of the elastic sealing member 10.
- the sleeve cover 9 is a profiled flange, and the edge chamfering dimension of the inner end of the end face is lmm-2.5 mm.
- the pre-assembled expansion head element 102 (cracker) adjusts the given stroke of the expansion head element 102 by means of a curvilinear control device 16 and an adjustment screw 17. Thereafter, the working medium inlet 12 is connected to the working medium source, ⁇ : manual hydraulic pump 101, and the expansion head element 102 is placed in the hole drilled in advance on the stone.
- ⁇ manual hydraulic pump 101
- BP the liquid medium 202 expands the expansion hose 20
- the expansion force of the expansion hose 20 directly acts on the bushing housing 19 and the bushing slider 18, and finally through the bushing housing 19 Orientation is transmitted externally.
- the expansion hose 20 expanded by the working medium relies on the acute angle between the side walls of the elastic sealing member 10 to ensure that the sealing gasket and the flat base of the annular cavity are closely fitted, and the tubular elasticity of the tapered end of the wire plug 7 is ensured. Reliable fixation of the chamber ends.
- the bushing housing 19 of the expansion head element during the working cycle engages the projections in the end of the support bushing slider 18 to ensure its unbiased uniform displacement, which will follow the profile of the ferrule cover during the duty cycle.
- the grooves on the flange move radially back and forth.
- the curvilinear control device 16 is used to control the expansion displacement of the inner wall of the expansion hose 20, causing movement of the pre-stressed push rod of the curved control device 16 toward the central portion of the expansion head member.
- the curved control device 16 reaches a predetermined displacement amount, the spherical body 15 located in the working medium stopper is displaced by the spring 14 to cover the working medium inlet 12, preventing the working medium from entering the inner cavity of the expansion hose 20.
- the expansion head member placed in the hole in the working cycle causes the force receiving body to act as a crack by the orientation force, the pressure of the working medium is reduced to zero, which is disposed between the expansion hose 20 and the inner wall of the bushing housing 19 at this time.
- the action of the pre-stressed spring piece, all the movable parts of the expansion head element, and the elastic force of the expansion hose 20 to which the bushing housing 19 is engaged with the element return to the initial state. Additional adjustment of the expansion head element can be performed with an adjustment tool. To do this, the joint is opened to release the working medium, and the adjustment tool is adjusted to the adjustment screw 17 in the tail hole of the curved control device 16, and the adjustment result is as follows: The bushing slider 18 is moved to the required position in the bushing housing 19. The distance, that is, the maximum expansion crack distance of the expansion head element design. The expansion head element exerts a large expansion force on the outer joint portion of the bushing housing 19, which effectively causes the orientation of the hard object around the hole where the expansion head element is located.
- the aspect ratio of the expansion head element 102, ⁇ , the ratio of length to diameter or length to the largest dimension of the cross section is from 4:1 to 25:1, preferably from 4:1 to 8:1.
- the length refers to the overall length of the expansion head member 102 from the outer joint 5 of the tip end to the end cap 21 of the tip end.
- the diameter or cross section refers to the outer diameter or cross section of the bushing housing 19 located at the outermost portion of the expansion head element 102.
- Figure 5 is a cross-sectional view of the hood cover of Figure 4, and Figure 6 is a partial enlarged view of the portion A of Figure 5.
- the chamfer forms a slope at the contact surface of the end surface and the elastic sealing member 10, which facilitates expansion of the expansion hose 20 under the working medium, and drives the bushing slider 18
- the movement of the bushing housing 19 reduces the shearing force on the expansion hose 20, so that the service life of the expansion hose 20 can be extended.
- the directional mining stone method and device of the invention greatly simplifies the operation steps, improves the production efficiency, reduces the labor intensity, meets the environmental protection requirements, is noiseless, dust-free, safe and easy to operate. Easy to maintain, low energy consumption, and energy saving.
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2009101192012A CN101519965B (zh) | 2009-03-09 | 2009-03-09 | 一种开采石料的方法和装置 |
CN200910119201.2 | 2009-03-09 |
Publications (1)
Publication Number | Publication Date |
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WO2010102546A1 true WO2010102546A1 (zh) | 2010-09-16 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2010/070891 WO2010102546A1 (zh) | 2009-03-09 | 2010-03-05 | 定向开采石料的方法及其使用的膨胀头元件 |
Country Status (2)
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CN (1) | CN101519965B (zh) |
WO (1) | WO2010102546A1 (zh) |
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US6305753B1 (en) * | 1999-03-04 | 2001-10-23 | Casiano Glenie Rodrigues | Hydraulic expansion tube |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10339791B2 (en) | 2007-06-12 | 2019-07-02 | Icontrol Networks, Inc. | Security network integrated with premise security system |
CN111175125A (zh) * | 2020-01-17 | 2020-05-19 | 安徽理工大学 | 一种煤岩抗张强度致裂实验探头及装配方法 |
CN114151057A (zh) * | 2021-12-08 | 2022-03-08 | 安徽理工大学 | 一种煤岩钻孔高压水力压裂实验装置及其使用方法 |
CN114151057B (zh) * | 2021-12-08 | 2023-08-04 | 安徽理工大学 | 一种煤岩钻孔高压水力压裂实验装置及其使用方法 |
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CN101519965B (zh) | 2011-01-19 |
CN101519965A (zh) | 2009-09-02 |
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