CN111495572A - Vibration spiral chute device - Google Patents
Vibration spiral chute device Download PDFInfo
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- CN111495572A CN111495572A CN202010288714.2A CN202010288714A CN111495572A CN 111495572 A CN111495572 A CN 111495572A CN 202010288714 A CN202010288714 A CN 202010288714A CN 111495572 A CN111495572 A CN 111495572A
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- spiral chute
- spiral
- vibration
- chute
- vibrating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
- B03B5/62—Washing granular, powdered or lumpy materials; Wet separating by hydraulic classifiers, e.g. of launder, tank, spiral or helical chute concentrator type
- B03B5/626—Helical separators
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Abstract
The invention discloses a vibrating spiral chute device. The pitch h/D distance-diameter ratio of the spiral chute (11) is 0.32-0.36; the spiral chute (11) is connected with a vibration column (10), the upper part of the vibration column (10) is connected with a horizontal vibrator (6), spiral blades (18) in the spiral chute (11) are fixedly connected through screws and nuts, and the blades (18) are the same in size from top to bottom; the spiral chute (11), the vibrating column (10) and the horizontal vibrator (6) are a vibrating whole. The invention is suitable for the minerals with small density difference, fine particles and large density difference and coarse particles. Aiming at small density difference, fine particles are beneficial to separation; large density difference, coarse particles, wide bandwidth division and high concentrate recovery rate.
Description
Technical Field
The invention belongs to the technical field of mineral resource processing equipment, and particularly relates to a vibrating spiral chute device.
Background
Spiral chute is as an indispensable equipment in the gravity concentration process, and it is applicable to the great branch ore dressing of density difference, if: gold, platinum, tungsten, weakly magnetic iron ore, manganese ore and some rare metal minerals, and is characterized by simple operation and structure and strong processing capability.
The pitch-to-diameter ratio of the spiral chute pitch h/D is generally 0.4-0.8, the over-limit spiral chute is 0.36, and generally, the smaller the pitch-to-diameter ratio of the spiral chute is, the more beneficial the ore with smaller density difference is, the pitch-to-diameter ratio of the spiral chute cannot be broken through. When the pitch-diameter ratio of the spiral chute is less than 0.36, the ore pulp is stocked in the chute, and the spiral chute cannot realize the separation work.
The ore pulp mainly receives centrifugal force, frictional force (frictional force between frictional force on spiral chute surface, the granule), gravity in the spiral chute, and when being less apart from the footpath, the spiral chute slope is gentler, and the selected ore can be piled up at the spiral chute inboard through the great granule of certain time coarse grain and density, influences the spiral chute and selects separately, reduces sorting efficiency.
Therefore, when the density difference is small, the fine particles are fine and the mud content is high, the sorting effect is poor. Meanwhile, when coarse particles and minerals with high density are sorted, the minerals stacked on the inner side of the spiral chute are obvious, the separation bandwidth is small, and the recovery rate of the concentrate is reduced. In order to solve the problem, a vibration and rotation spiral chute mode is generally adopted to provide power for mineral particles and accelerate separation.
Discussion of the undershoot ratio and vibration as uniform vibration has not yet emerged.
Disclosure of Invention
Aiming at the defects in the prior art and the improvement requirements of customers, the invention provides the vibrating spiral chute device, which solves the problem existing when the pitch-diameter ratio of the spiral chute is lower than 0.36 by increasing the vibration of the spiral chute, and improves the mineral separation precision and purity.
In order to achieve the above object, according to one aspect of the present invention, there is provided a vibrating spiral chute apparatus, wherein a pitch h/D-pitch ratio of the spiral chute is 0.32 to 0.36; the spiral chute is connected with a vibration column, the upper part of the vibration column is connected with a horizontal vibrator, spiral blades in the spiral chute are fixedly connected through screws and nuts, and the blades are the same in size from top to bottom; the spiral chute, the vibrating column and the horizontal vibrator are a vibrating whole.
According to the embodiment of the invention, the upper part of the horizontal vibrator is connected with the upper bottom plate of the vibrator through a bolt and a nut, and the upper bottom plate of the vibrator is connected with the upper bracket through a spring; an ore feeding hopper and a water feeding hopper are arranged above the spiral chute, an ore discharging groove is arranged at the lower part of the spiral chute, and three ore discharging ports are arranged on the ore discharging groove and respectively correspond to concentrate, middlings and tailings; the lower part of the vibration column is connected with a chute chassis, and the chute chassis is connected with a fixed chassis through a bottom spring; the spring and the bottom spring are used for fixing and buffering the vibration spiral chute, the lower part of the upper support is connected with the support, and the upper support and the support fix the whole vibration spiral chute.
According to the embodiment of the invention, the horizontal vibrator is a low-voltage high-frequency vibrator, and the length-width ratio of the horizontal vibrator is more than or equal to 3.
According to the embodiment of the invention, the spiral diameter of the spiral chute is 600-2000 mm, and the number of spiral turns is 5-6.
According to the working principle of the technical scheme, the difference between the inner side speed and the outer side speed of the spiral blades of the device is large, fed ore pulp does centrifugal rotary motion downwards along a spiral line under the action of gravity, mineral particles vibrate in a reciprocating mode to increase the kinetic energy of the mineral particles, meanwhile, the mineral particles interact with each other, the coarse particle density is large, the mineral moves towards the inner side of the spiral chute, and the fine particle density is small. The solid particles are loosened under the action of weak turbulence and layered according to the flow film separation principle, heavy minerals entering the bottom layer are influenced by the friction force of the bottom of the groove, the moving speed is low, the centrifugal force inertia is small, and the heavy minerals tend to move in the groove along the maximum inclined direction of the groove surface; the doped micro-particles are impacted to the upper layer by vibration, are accelerated by the action of water flow and are thrown to the outer side of the groove surface; heavy minerals and micro minerals gradually form belt layers under the action of continuous vibration, the belt layers are paved on the groove surface, and the belt layers are separated along with the movement trend of mineral particles to be stable, so that the final separation is realized.
In general, the above technical solutions contemplated by the present invention can achieve the following advantageous effects compared to the prior art.
(1) Under the condition that the pitch h/D pitch-diameter ratio of the spiral chute is 0.32-0.36, the horizontal vibrator is added, the friction force between mineral particles and the surface of the spiral chute is reduced, and longitudinal kinetic energy is provided.
(2) The vibrator passes through the vibration post and links to each other with the spiral chute and forms the vibration chute system, and the ore pulp is in high-frequency vibration spiral chute, because spiral chute groove face is mild and wide, the ore pulp layering area is obvious, and the mineral precision and the purity of sorting are high.
(3) The invention is suitable for the minerals with small density difference, fine particles and large density difference and coarse particles. Aiming at small density difference, fine particles are beneficial to separation; large density difference, coarse particles, wide bandwidth division and high concentrate recovery rate.
Drawings
Fig. 1 is a front perspective structural schematic view of a vibrating spiral chute apparatus.
Fig. 2 is a top view of fig. 1.
Fig. 3 is a schematic diagram of a spiral chute single blade structure.
In the figure: 1. the device comprises an upper support, 2 springs, 3 bolts, 4 vibrator upper bottom plates, 5 nuts, 6 vibrators, 7 vibrator lower bottom plates, 8 water feeding hoppers, 9 ore feeding hoppers, 10 vibrating columns, 11 spiral chutes, 12 supports, 13 ore discharge chutes, 14 ore discharge ports, 15 spiral chute chassis, 16 bottom springs, 17 fixed chassis and 18 blades.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
A vibration spiral chute device is characterized in that the pitch h/D distance-diameter ratio of a spiral chute 11 is 0.32-0.36; the spiral chute 11 is connected with a vibration column 10, the upper part of the vibration column 10 is connected with a horizontal vibrator 6, spiral blades 18 in the spiral chute 11 are fixedly connected through screws and nuts, and the blades 18 are the same in size from top to bottom; the spiral chute 11, the vibrating column 10 and the horizontal vibrator 6 are a vibrating whole.
The upper part of the horizontal vibrator 6 is connected with an upper vibrator bottom plate 4 through a bolt 3 and a nut 5, and the upper vibrator bottom plate 4 is connected with an upper support 1 through a spring 2; an ore feeding hopper 9 and a water feeding hopper 8 are arranged above the spiral chute 11, an ore discharging groove 13 is arranged at the lower part of the spiral chute 11, and three ore discharging ports 14 are arranged on the ore discharging groove 13 and respectively correspond to concentrate, middlings and tailings; the lower part of the vibration column 10 is connected with a chute chassis 15, and the chute chassis 15 is connected with a fixed chassis 17 through a bottom spring 16; the spring 2 and the bottom spring 16 are used for fixing and buffering the vibrating spiral chute 11, the lower part of the upper support 1 is connected with the support 12, and the upper support 1 and the support 12 fix the whole vibrating spiral chute.
The horizontal vibrator 6 is a low-voltage high-frequency vibrator, and the length-width ratio of the horizontal vibrator 6 is more than or equal to 3.
The spiral diameter of the spiral chute 11 is 600 mm-2000 mm, the number of spiral turns is 5-6, the material is glass fiber reinforced plastic, and the coating material is epoxy resin doped with carborundum.
The specific working principle is as follows: the vibrator is started, ore pulp is fed from the ore feeding hopper, water is fed to the ore feeding hopper, the fed ore pulp does centrifugal rotary motion downwards along a spiral line under the action of gravity, mineral particles vibrate in a reciprocating mode to increase the kinetic energy of the mineral particles, meanwhile, the mineral particles interact with each other, the coarse-particle-density mineral moves on the inner side of the spiral chute, and the fine-particle-density mineral moves on the outer side of the spiral chute. The solid particles are loosened under the action of weak turbulence and layered according to the flow film separation principle, heavy minerals entering the bottom layer are influenced by the friction force of the bottom of the groove, the moving speed is low, the centrifugal force inertia is small, and the heavy minerals tend to move in the groove along the maximum inclined direction of the groove surface; the doped micro-particles are impacted to the upper layer by vibration, are accelerated by the action of water flow and are thrown to the outer side of the groove surface; heavy minerals and micro minerals gradually form belt layers under the action of continuous vibration, the belt layers are paved on the groove surface, and the belt layers are separated along with the movement trend of mineral particles to be stable, so that the final separation is realized.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (4)
1. A vibration spiral chute device is characterized in that the pitch h/D distance-diameter ratio of a spiral chute (11) is 0.32-0.36; the spiral chute (11) is connected with a vibration column (10), the upper part of the vibration column (10) is connected with a horizontal vibrator (6), spiral blades (18) in the spiral chute (11) are fixedly connected through screws and nuts, and the blades (18) are the same in size from top to bottom; the spiral chute (11), the vibrating column (10) and the horizontal vibrator (6) are a vibrating whole.
2. A vibrating spiral chute apparatus as claimed in claim 1, wherein the upper part of said horizontal vibrator (6) is connected to the vibrator upper base plate (4) by means of a bolt (3) and a nut (5), the vibrator upper base plate (4) is connected to the upper bracket (1) by means of a spring (2); an ore feeding hopper (9) and a water feeding hopper (8) are arranged above the spiral chute (11), an ore discharging groove (13) is arranged at the lower part of the spiral chute (11), and three ore discharging ports (14) are arranged on the ore discharging groove (13) and respectively correspond to concentrate, middlings and tailings; the lower part of the vibrating column (10) is connected with a chute chassis (15), and the chute chassis (15) is connected with a fixed chassis (17) through a bottom spring (16); the vibration spiral chute is characterized in that the spring (2) and the bottom spring (16) are used for fixing and buffering the vibration spiral chute (11), the lower part of the upper support (1) is connected with the support (12), and the upper support (1) and the support (12) are used for fixing the whole vibration spiral chute.
3. A vibrating spiral chute apparatus as claimed in claim 1, wherein said horizontal vibrator (6) is a low pressure high frequency vibrator, and said horizontal vibrator (6) has an aspect ratio of 3 or more.
4. The vibrating spiral chute device as claimed in claim 1, wherein the spiral diameter of the spiral chute (11) is 600mm to 2000mm, and the number of spiral turns is 5 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010288714.2A CN111495572A (en) | 2020-04-14 | 2020-04-14 | Vibration spiral chute device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010288714.2A CN111495572A (en) | 2020-04-14 | 2020-04-14 | Vibration spiral chute device |
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| CN111495572A true CN111495572A (en) | 2020-08-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010288714.2A Pending CN111495572A (en) | 2020-04-14 | 2020-04-14 | Vibration spiral chute device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112723702A (en) * | 2020-12-31 | 2021-04-30 | 东莞理工学院 | Novel shield constructs mud-water separation device |
| CN113019723A (en) * | 2021-03-29 | 2021-06-25 | 抚顺罕王傲牛矿业股份有限公司 | High-efficiency ore grinding and grading process for solving dehydration of products on high-frequency sieve |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2192352A (en) * | 1986-06-30 | 1988-01-13 | Mineral Deposits Ltd | Spiral separator |
| CN87107743A (en) * | 1987-11-17 | 1988-06-01 | 新疆有色金属研究所 | High-frequency vibrating spiral sluiceway ore drewwing machine |
| CN204602389U (en) * | 2015-05-04 | 2015-09-02 | 富阳怀邦机械有限公司 | A kind of mine tailing flotation spiral chute of ultrasonic dither |
| CN109746112A (en) * | 2019-02-12 | 2019-05-14 | 中国矿业大学 | A kind of coarse slime gravity separation apparatus and method for |
| CN209829241U (en) * | 2018-12-06 | 2019-12-24 | 江西恒宏国际矿山机械有限公司 | Novel high-efficient glass steel spiral chute |
-
2020
- 2020-04-14 CN CN202010288714.2A patent/CN111495572A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2192352A (en) * | 1986-06-30 | 1988-01-13 | Mineral Deposits Ltd | Spiral separator |
| CN87107743A (en) * | 1987-11-17 | 1988-06-01 | 新疆有色金属研究所 | High-frequency vibrating spiral sluiceway ore drewwing machine |
| CN204602389U (en) * | 2015-05-04 | 2015-09-02 | 富阳怀邦机械有限公司 | A kind of mine tailing flotation spiral chute of ultrasonic dither |
| CN209829241U (en) * | 2018-12-06 | 2019-12-24 | 江西恒宏国际矿山机械有限公司 | Novel high-efficient glass steel spiral chute |
| CN109746112A (en) * | 2019-02-12 | 2019-05-14 | 中国矿业大学 | A kind of coarse slime gravity separation apparatus and method for |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112723702A (en) * | 2020-12-31 | 2021-04-30 | 东莞理工学院 | Novel shield constructs mud-water separation device |
| CN113019723A (en) * | 2021-03-29 | 2021-06-25 | 抚顺罕王傲牛矿业股份有限公司 | High-efficiency ore grinding and grading process for solving dehydration of products on high-frequency sieve |
| CN113019723B (en) * | 2021-03-29 | 2022-04-01 | 抚顺罕王傲牛矿业股份有限公司 | High-efficiency ore grinding and grading process for solving dehydration of products on high-frequency sieve |
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Application publication date: 20200807 |