CN104564081B

CN104564081B - Marine placer is without a kind of poor partition method for damaging exploitation

Info

Publication number: CN104564081B
Application number: CN201410059008.5A
Authority: CN
Inventors: 刘照朗
Original assignee: GUANGDONG ANYUAN MINING TECHNOLOGY SERVICE Co Ltd
Current assignee: GUANGDONG ANYUAN MINING TECHNOLOGY SERVICE Co Ltd
Priority date: 2014-02-18
Filing date: 2014-02-18
Publication date: 2017-06-09
Anticipated expiration: 2034-02-18
Also published as: CN104564081A

Abstract

Marine placer sets isolation mount without a kind of poor partition method for damaging exploitation in stope and between throwing tail region, support is under the tailings side pressure effect for throwing tail region, pushed ahead with stope and voluntarily follow movement, protocercal tail sand and CHARACTERISTICS OF TAILINGS SAND is set to isolate all the time, so as to realize being exploited without dilution, free of losses；Support configuration float, floatability can sink, convenient transfer.

Description

Marine placer is without a kind of poor partition method for damaging exploitation

Technical field

The invention belongs to marine mining technical field

Background technology

The mining methods of existing Marine placer are usually：Roughing, marine throwing tail on dredging, ship；But due to tide Ocean current and stormy waves action of ocean current, raw ore sand and CHARACTERISTICS OF TAILINGS SAND can blendings quickly, it is impossible to form isolation mining ditch, thereby result in loss and Dilution；The present invention seeks to：By setting a kind of walking mining isolation mount, make raw ore sand and CHARACTERISTICS OF TAILINGS SAND completely isolated, it is real Now exploited without dilution, free of losses.

The content of the invention

Walking mining isolation mount of the invention is constituted by rigidly fixing component and flexible colligation component two parts；Rigidity Fixation kit has：Structural beams 3, column 4, sand block backboard 5, diagonal brace 11, slip bottom girder 12, strengthening support 13；Wherein throw the gear of tail end Sand backboard is used for supporting and retaining system CHARACTERISTICS OF TAILINGS SAND, prevents the sand block backboard at dilution, back production end and is used for raw ore sand of screening, and prevents divergence loss；Just Property fixation kit can be made of one formula or bulk-breaking formula Assembling；Do not limited per segment length, multistage is hinged, composition adapts to actual mining The isolation barrier of line length；Flexible colligation component is mainly in support two ends colligation float；The effect one of float is adjusting bracket Buoyant weight amount under water, two is that can float support, be easy to transfer；Float steel, modeling pipe or other materials make, and buoy upper sets Air inlet-outlet pipe, bottom sets intake-discharge pipe, and the water body calmed the anger in then discharge float cavity, pressure water then discharges the air in float cavity, with This regulation buoyancy；When two floats adjoin, make the two cavity UNICOM settable communicating pipe, reducing each float will be set The trouble of gas and water pipe；Support is with the mechanics principle of line slip：Throw the tailings side pressure of tail end sand block backboard It is F=P.cos (δ+ε) that side pressure promotes the horizontal force of bracket slide, and the torque of toppling over to support is It is M2=G that support is anti-to topple over torque_f.L₁+P.sin(δ+ε).L₂, support antiskid dynamic resistance N=[G_f+P.sin(δ+ε)].ξ；On In stating formula, the buoyant unit weight γ and internal friction angle of tailingsIt is immutable, but, tailings piling height h, sand block backboard and vertical Angle of friction δ, the buoyant weight amount of support of the drift angle ε (it is on the occasion of nutation is negative value that sand blocking surface is faced upward), sand block backboard and tailings of line G_f, the anti-of support buoyant weight amount topple over arm of force L₁, side pressure application point arm of force L₂, slide seven parameters such as bottom girder coefficient of friction ξ be can Become；Such as：Distance before and after changing between sand block backboard can change L₁、L₂, change the material of support element and float, section can To change G_f, changing the material of slip bottom girder bottom surface, shape can change ξ, change the gradient and table for throwing tail region sand block backboard Face smoothness can change ε and δ, and tailings piling height h is set by orebody thickness；By adjusting seven variable elements, make isolation Support reaches such effect：When throwing tail region tailings is stacked into certain setting height h, F ＞ N, support is slided to mining direction, but is begun Keeping M2 ＞ M1, support eventually will not tumble；If ore in sand form layer is relatively thin, when the horizontal thrust F of tailings is not enough, can increase on bottom girder is slided If roller, become and slide to roll, to reduce moving resistance N；So, in the back production of support side, another side throwing tail, support is throwing tail Under the tailings side pressure effect in area, follow stope to move automatically, so as to realize raw ore sand and CHARACTERISTICS OF TAILINGS SAND isolation, reduce or complete Totally disappeared except loss, dilution.

Figure of description explanation：

Fig. 1 is mining isolation mount schematic diagram, symbolic significance is marked in figure as follows：

1 --- throw tail region, 2 --- tailings side pressure line, 3 --- structural beams, 4 --- column,

5 --- sand block backboard, 6 --- air inlet-outlet pipe, 7 --- float, 8 --- communicating pipe,

9 --- intake-discharge pipe, 10 --- tie, 11 --- diagonal braces, 12 --- slide bottom girder,

13 --- strengthening support, 14 --- mining direction line, 15 --- stope.

(following blank)

Claims

1. without a kind of poor partition method for damaging exploitation, it is technically characterized in that Marine placer：

First, setting isolation mount in stope and between throwing tail region, isolation mount follows stope to move automatically； Second, can float isolation mount, it is easy to transfer；Third, the mobile principle of isolation mount retinue is：Regulation tailings piles up high Degree, the drift angle of sand block backboard and plumb line, the angle of friction of sand block backboard and tailings, the buoyant weight amount of support, support buoyant weight amount resist Topple over the arm of force, the arm of force of side pressure application point, slide bottom girder coefficient of friction seven parameters of ζ, isolation mount is being thrown the tailings of tail region Under side pressure effect, follow stope to move automatically, but remain anti-and topple over torque and act on isolation mount more than tailings Topple over torque, isolation mount will not tumble；If fourth, ore in sand form layer is relatively thin, when the horizontal thrust of tailings is not enough, bottom can be being slided Roller is set up on beam, is become and is slided to roll；Fifth, in the back production of isolation mount side, another side throwing tail, so as to realize raw ore sand and Tailings is isolated, and reduces or be completely eliminated loss, dilution.