CN203002635U - Grizzly screen for draw shaft mine receiving mouth - Google Patents

Grizzly screen for draw shaft mine receiving mouth Download PDF

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Publication number
CN203002635U
CN203002635U CN 201220737076 CN201220737076U CN203002635U CN 203002635 U CN203002635 U CN 203002635U CN 201220737076 CN201220737076 CN 201220737076 CN 201220737076 U CN201220737076 U CN 201220737076U CN 203002635 U CN203002635 U CN 203002635U
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CN
China
Prior art keywords
screen surface
screen
bolthole
diagrid
anchor rod
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.)
Withdrawn - After Issue
Application number
CN 201220737076
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Chinese (zh)
Inventor
刘艳章
王其飞
叶义成
赵卫
石志军
邓磊
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhan University of Science and Engineering WUSE
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Wuhan University of Science and Engineering WUSE
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Filing date
Publication date
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Priority to CN 201220737076 priority Critical patent/CN203002635U/en
Application granted granted Critical
Publication of CN203002635U publication Critical patent/CN203002635U/en
Withdrawn - After Issue legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model belongs to the technical field of grizzly screens, and particularly relates to a grizzly screen for a draw shaft mine receiving mouth. The grizzly screen for the draw shaft mine receiving mouth is characterized in that the screen surface of the grizzly screen is a foursquare, 9-100 screen holes (1) are evenly formed in the screen surface, the hole diameter of each screen hole is 300-800mm, anchor rod holes (2) are evenly formed at the positions of the edges, close to the four sides of the screen surface, the anchor rod holes (2) are inclined holes, the number of the anchor rod holes (2) is 4-20, the projection of the a center line of the anchor rod holes (2) is overlapped with a connecting line of the center of the screen surface and the centers of the anchor rod holes (2), and the included angle between the center line of the anchor rod holes (2) and the screen surface is 70 degrees to 80 degrees. The grizzly screen for the draw shaft mine receiving mouth is composed of an upper-layer wear-resisting layer (3), a middle framework layer (5) and a lower-layer buffer layer (4). The materials of the wear-resisting layer (3) are wear-resisting rubbers, the materials of the framework layer (5) are medium carbon steels containing 0.2%-0.5% carbon, and the materials of the buffer layer (4) are synthetic rubbers. The grizzly screen for the draw shaft mine receiving mouth has the advantages of being high in screening efficiency, strong in wearing resistance performance, good in shock resistance performance, low in cost and long in service life.

Description

A kind of diagrid that is subjected to mine mouth for drop shaft
Technical field
The utility model belongs to the diagrid technical field.Be specifically related to a kind of diagrid that is subjected to mine mouth for drop shaft.
Background technology
In the mine produced, the ore of stope avalanche need to be transported to the Pass drawing system by plant equipment usually.In order to control the lumpiness of ore, stop bulk to enter the rolling system, the drop shaft mouth of being everlasting is installed diagrid.Traditional diagrid is subjected to ore impact, shear action, and diagrid surface and flank wear are serious, and service life is short, needs just change diagrid at set intervals.Due to diagrid change frequent and installation loaded down with trivial details, can not in time change diagrid in causing producing and produce the diagrid inefficacy or abandon phenomenon.Therefore directly entering drop shaft, the part bulk causes the obstruction of pass and drawhole, if bulk directly enters the obstruction that main chute also can cause the disintegrating machine material inlet of main chute bottom; In addition, bulk has also been aggravated the wear-out failure of the borehole wall, and impact mining is produced.
In existing production, diagrid commonly used has two types: the one, and surperficial without high-abrasive material, the 2nd, there is high-abrasive material on the surface; These two kinds of diagrids all adopt cast iron or rail material as skeleton, and its sieve aperture is square.The former is because processing is simple, simple and easy to operate, and application is comparatively extensive aborning, but its serious wear is yielding, crashes into drop shaft after destruction equipment is hurt well damage; The latter has certain wear-resisting effect, but also has the yielding shortcoming that is hit; In mining process, the ore of extraction is different, and corner angle are outstanding, adopt square sieve aperture to increase ore to the sieve aperture concentrated wear.
Summary of the invention
The utility model is intended to overcome the deficiencies in the prior art, purpose be to provide that a kind of screening effeciency is high, antiwear property is strong, shock resistance is good and long service life be used for the diagrid that drop shaft is subjected to mine mouth.
For achieving the above object, the technical solution adopted in the utility model is: be subjected to the diagrid compass screen surface of mine mouth for square for drop shaft, be provided with equably 9 ~ 100 sieve apertures in compass screen surface, the aperture of sieve aperture is 300 ~ 800mm.Be provided with equably bolthole in the edge near compass screen surface four limits, bolthole is inclined hole, bolthole is 4 ~ 20, and the line at the center of the projection of bolthole center line on compass screen surface and compass screen surface and bolthole center overlaps, and the angle of bolthole center line and compass screen surface is 70 ~ 80 °.
Describedly formed by the wearing layer on upper strata, middle casing play and the cushion of lower floor by the diagrid of mine mouth for drop shaft.The material of wearing layer is abrasive rubber, and the material of casing play is the medium carbon steel of carbon containing 0.2% ~ 0.5%, and the material of cushion is synthetic rubber.
Owing to adopting technique scheme, round sieve of the present utility model has not only improved the mobility of ore, and makes ore more even to the wearing and tearing of sieve aperture.In addition, wearing layer adopts high-abrasive material can reduce ore to the impact wear of diagrid, and cushion adopts elastomeric material can play the effect that the buffering ore impacts, discharges load and noise reduction.Be used for therefore improved the anti-wear performance that drop shaft is subjected to the diagrid of mine mouth, strengthened the impact resistance that is subjected to the diagrid of mine mouth for drop shaft, reduced for drop shaft being subjected to the consumption of materials of the diagrid of mine mouth to be used for having extended the service life that drop shaft is subjected to the diagrid of mine mouth.In addition, traditional flat diagrid in ore deposit that is subjected to adopts single cast steel, rail material as skeleton, and for realizing its intensity and requirement in service life, high material consumption, weight are large, causes that difficulty of construction is large and cost is high.And the elastomeric material low price that the utility model adopts, construction is simple, and is lightweight.Therefore the utility model has reduced production cost, remarkable in economical benefits.
Therefore, the utlity model has that screening effeciency is high, antiwear property is strong, shock resistance is good, cost is low and the characteristics of long service life.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model;
Fig. 2 is the A-A sectional structure schematic diagram of Fig. 1;
Fig. 3 is a kind of use schematic diagram of Fig. 1;
Fig. 4 is that the another kind of Fig. 1 uses schematic diagram.
The specific embodiment
Being described further of the present utility model below in conjunction with the drawings and specific embodiments, is not the restriction to its protection domain:
Embodiment 1
A kind of diagrid that is subjected to mine mouth for drop shaft.Its structure is subjected to the diagrid compass screen surface of mine mouth for square as depicted in figs. 1 and 2 for drop shaft, be provided with equably 25 sieve apertures 1 as shown in Figure 1 in compass screen surface, and the aperture of sieve aperture 1 is 400 ~ 700mm.Be provided with equably bolthole 2 in the edge near compass screen surface four limits, bolthole 2 is inclined hole, bolthole 2 is 8, and the line at the center of the projection of the center line of bolthole 2 on compass screen surface and compass screen surface and bolthole 2 centers overlaps, and the center line of bolthole 2 and the angle of compass screen surface are 70 ~ 80 °.
The described diagrid of mine mouth that is subjected to for drop shaft is comprised of the wearing layer 3 on upper strata, the casing play 5 of centre and the cushion 4 of lower floor.The material of wearing layer 3 is abrasive rubber, and the material of casing play 5 is the medium carbon steel of carbon containing 0.2% ~ 0.4%, and the material of cushion 4 is synthetic rubber.
Embodiment 2
A kind of diagrid that is subjected to mine mouth for drop shaft.Its structure is subjected to the diagrid compass screen surface of mine mouth for square as depicted in figs. 1 and 2 for drop shaft, be provided with equably 9 ~ 24 sieve apertures 1 in compass screen surface, and the aperture of sieve aperture 1 is 500 ~ 800mm.Be provided with equably bolthole 2 in the edge near compass screen surface four limits, bolthole 2 is inclined hole, bolthole 2 is 4 ~ 7, and the line at the center of the projection of the center line of bolthole 2 on compass screen surface and compass screen surface and bolthole 2 centers overlaps, and the center line of bolthole 2 and the angle of compass screen surface are 70 ~ 80 °.
The described diagrid of mine mouth that is subjected to for drop shaft is comprised of the wearing layer 3 on upper strata, the casing play 5 of centre and the cushion 4 of lower floor.The material of wearing layer 3 is abrasive rubber, and the material of casing play 5 is the medium carbon steel of carbon containing 0.25% ~ 0.45%, and the material of cushion 4 is synthetic rubber.
Embodiment 3
A kind of diagrid that is subjected to mine mouth for drop shaft.Its structure is subjected to the diagrid compass screen surface of mine mouth for square as depicted in figs. 1 and 2 for drop shaft, be provided with equably 26 ~ 100 sieve apertures 1 in compass screen surface, and the aperture of sieve aperture 1 is 300 ~ 600mm.Be provided with equably bolthole 2 in the edge near compass screen surface four limits, bolthole 2 is inclined hole, bolthole 2 is 9 ~ 20, and the line at the center of the projection of the center line of bolthole 2 on compass screen surface and compass screen surface and bolthole 2 centers overlaps, and the center line of bolthole 2 and the angle of compass screen surface are 70 ~ 80 °.
The described diagrid of mine mouth that is subjected to for drop shaft is comprised of the wearing layer 3 on upper strata, the casing play 5 of centre and the cushion 4 of lower floor.The material of wearing layer 3 is abrasive rubber, and the material of casing play 5 is the medium carbon steel of carbon containing 0.3% ~ 0.5%, and the material of cushion 4 is synthetic rubber.
The occupation mode of this specific embodiment has two kinds, and is as shown in Figure 3 a kind of, adopts anchor pole 7 to be subjected to mine mouth 6 places with described for what drop shaft was subjected to that the diagrid of mine mouth is arranged on main chute 8, and ore is subjected to mine mouth 6 through what plant equipment poured into main chute 8; Another kind adopts anchor pole 7 to be subjected to the diagrid of mine mouth to be arranged on the well head place of segmentation drop shaft 9 with described for drop shaft as shown in Figure 4, and ore pours into the well head place of segmentation drop shaft 9 through plant equipment.Be subjected to the garbled ore of diagrid of mine mouth to enter drop shaft through being used for drop shaft, be not subjected to the ore of the diagrid of mine mouth to carry out second-time breakage with explosion or mechanical means by being used for drop shaft.
This specific embodiment is described is subjected to the diagrid of mine mouth to adopt round sieve for drop shaft, has not only improved the mobility of ore, and has made ore more even to the wearing and tearing of sieve aperture.In addition, wearing layer adopts high-abrasive material can reduce ore to the impact wear of diagrid, and cushion adopts elastomeric material can play the effect that the buffering ore impacts, discharges load and noise reduction.Therefore improved this specific embodiment anti-wear performance, strengthened impact resistance, reduced consumption of materials and extended service life.In addition, traditional flat diagrid in ore deposit that is subjected to adopts single cast steel, rail material as skeleton, and for realizing intensity and requirement in service life, high material consumption, weight are large, causes that difficulty of construction is large and cost is high.And the elastomeric material low price that this specific embodiment adopts, construction is simple, and is lightweight.Therefore this specific embodiment has reduced production cost, remarkable in economical benefits.
Therefore, this specific embodiment has that screening effeciency is high, antiwear property is strong, shock resistance is good, cost is low and the characteristics of long service life.

Claims (1)

1. one kind is used for the diagrid that drop shaft is subjected to mine mouth, it is characterized in that the described diagrid compass screen surface that is subjected to mine mouth for drop shaft for square, is provided with 9 ~ 100 sieve apertures (1) equably in compass screen surface, and the aperture of sieve aperture (1) is 300 ~ 800mm; Be provided with equably bolthole (2) in the edge near compass screen surface four limits, bolthole (2) is inclined hole, bolthole (2) is 4 ~ 20, the line at the center of the projection of bolthole (2) center line on compass screen surface and compass screen surface and bolthole (2) center overlaps, and the angle of bolthole (2) center line and compass screen surface is 70 ~ 80 °;
Describedly formed by the wearing layer (3) on upper strata, middle casing play (5) and the cushion (4) of lower floor by the diagrid of mine mouth for drop shaft; The material of wearing layer (3) is abrasive rubber, and the material of casing play (5) is the medium carbon steel of carbon containing 0.2% ~ 0.5%, and the material of cushion (4) is synthetic rubber.
CN 201220737076 2012-12-28 2012-12-28 Grizzly screen for draw shaft mine receiving mouth Withdrawn - After Issue CN203002635U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220737076 CN203002635U (en) 2012-12-28 2012-12-28 Grizzly screen for draw shaft mine receiving mouth

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220737076 CN203002635U (en) 2012-12-28 2012-12-28 Grizzly screen for draw shaft mine receiving mouth

Publications (1)

Publication Number Publication Date
CN203002635U true CN203002635U (en) 2013-06-19

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220737076 Withdrawn - After Issue CN203002635U (en) 2012-12-28 2012-12-28 Grizzly screen for draw shaft mine receiving mouth

Country Status (1)

Country Link
CN (1) CN203002635U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102989673A (en) * 2012-12-28 2013-03-27 武汉科技大学 Orepass ore-receiving flat lattice sieve

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102989673A (en) * 2012-12-28 2013-03-27 武汉科技大学 Orepass ore-receiving flat lattice sieve
CN102989673B (en) * 2012-12-28 2016-01-27 武汉科技大学 A kind of drop shaft is by the flat diagrid in ore deposit

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C14 Grant of patent or utility model
GR01 Patent grant
AV01 Patent right actively abandoned

Granted publication date: 20130619

Effective date of abandoning: 20160127

C25 Abandonment of patent right or utility model to avoid double patenting