CN111111903A - Centrifugal rotary spiral concentrating machine - Google Patents
Centrifugal rotary spiral concentrating machine Download PDFInfo
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- CN111111903A CN111111903A CN202010020425.4A CN202010020425A CN111111903A CN 111111903 A CN111111903 A CN 111111903A CN 202010020425 A CN202010020425 A CN 202010020425A CN 111111903 A CN111111903 A CN 111111903A
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- spiral
- centrifugal separation
- separation groove
- spiral centrifugal
- main shaft
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- 238000000926 separation method Methods 0.000 claims abstract description 103
- 239000000463 material Substances 0.000 claims abstract description 53
- 230000007246 mechanism Effects 0.000 claims abstract description 11
- 238000007599 discharging Methods 0.000 claims description 16
- 238000000034 method Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 6
- 239000000047 product Substances 0.000 description 22
- 239000002245 particle Substances 0.000 description 11
- 230000009471 action Effects 0.000 description 5
- 230000005484 gravity Effects 0.000 description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 description 3
- 239000011707 mineral Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000005119 centrifugation Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
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Classifications
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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
- B03B5/48—Washing granular, powdered or lumpy materials; Wet separating by mechanical classifiers
- B03B5/52—Spiral classifiers
-
- 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
- B03B13/00—Control arrangements specially adapted for wet-separating apparatus or for dressing plant, using physical effects
Abstract
The invention discloses a centrifugal rotary spiral concentrating machine, which comprises a rack, a rotary main shaft, a feeding box, a spiral centrifugal separation groove, a speed reducing motor, a frequency converter, a controller and a multi-product receiving mechanism, wherein the rotary main shaft is vertically arranged in the rack along the central axis of the rack; many products receiving mechanism sets up at the lower extreme in spiral centrifugal separation groove and can collect the material of selecting separately back different density, and the appearance in spiral centrifugal separation groove is radius platform form, and the diameter in spiral centrifugal separation groove reduces from last to down gradually. The invention has simple structure, high separation efficiency and strong adaptability, and the separation equipment is convenient to operate and has simple process flow.
Description
Technical Field
The invention belongs to the technical field of ore dressing, and particularly relates to a centrifugal rotary spiral ore dressing machine with a spiral chute with gradually changed diameter.
Background
The spiral separator and centrifugal separator are two kinds of equipment commonly used in the mineral processing and separating process, the ore pulp naturally swirls from high to low in the separating process of the spiral separator, an inertial centrifugal force is generated in the flow velocity of a rotating inclined plane, and a light product and a heavy product are separated by the action of gravity and centrifugal force of the swirling flow according to the difference of specific gravity, granularity and shape of minerals. Although the spiral sorting machine has simple structure and no power, the sorting efficiency and the processing efficiency are relatively low; and the structure of the spiral sorting machine is fixed, and no power is input, so that the sorting process is fixed, the material sorting layering effect is greatly influenced by the parameters of the equipment, and the sorting precision is not high.
The centrifugal separator utilizes the conical surface of the rotary drum to perform centrifugal separation, easily causes material mixing on the same plane, is difficult to ensure the stability of the separation process, and is one-time discontinuous separation when the centrifugal separator performs separation, and the selection can only be realized by additional equipment.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a centrifugal rotary spiral concentrating machine which is simple in equipment structure, high in separation efficiency, strong in adaptability, convenient to operate and simple in process flow.
In order to achieve the purpose, the invention adopts the technical scheme that: a centrifugal rotary spiral concentrator is characterized in that: the automatic feeding device comprises a rack, a rotating main shaft, a feeding box, a spiral centrifugal separation groove, a speed reducing motor, a frequency converter, a controller and a multi-product receiving mechanism, wherein the rotating main shaft is vertically installed in the rack along the central axis of the rack, the upper end of the rotating main shaft is rotatably connected with the top center of the rack, the lower end of the rotating main shaft is rotatably connected with the bottom center of the rack, the spiral centrifugal separation groove is fixedly installed on the outer wall of the rotating main shaft, the feeding box is arranged on one side of the top of the rack, a feeding port for feeding the spiral centrifugal separation groove is formed in the bottom of the feeding box, the lower end of the feeding port is located at the feeding port of the spiral centrifugal separation groove, the speed reducing motor is installed on the outer side of the top of the rack, an output shaft of the speed reducing motor is fixedly connected with the upper end of the rotating main, the speed reducing motor is connected with a frequency converter, and the frequency converter is connected with a controller; many products receiving mechanism sets up at the lower extreme in spiral centrifugal separation groove and can collect the material of selecting separately back different density, the appearance in spiral centrifugal separation groove is radius platform form, the diameter in spiral centrifugal separation groove reduces from last to down gradually, the external diameter D1 at spiral centrifugal separation groove top is 1000mm ~ 500mm, the external diameter D2 at spiral centrifugal separation groove bottom is 500mm ~ 100 mm.
The centrifugal rotary spiral concentrating machine is characterized in that: the multi-product receiving mechanism comprises a distribution chute, a receiving groove and a discharging pipe, wherein a distribution grid is arranged at the bottom in the distribution chute, the receiving groove is arranged at the bottom of the distribution chute, the upper end of the discharging pipe is connected with a discharge port at the bottom of a notch of the receiving groove, and the upper end of the distribution chute is fixedly connected with the lower end of a spiral centrifugal separation groove; the quantity of the material distribution grating is one or two, and the quantity of the notches in the material receiving groove is equal to that of the material discharging pipes and is two or three.
The centrifugal rotary spiral concentrating machine is characterized in that: the number of the material distribution grids is one, and the number of the notches in the material receiving groove and the number of the material discharging pipes are two.
The centrifugal rotary spiral concentrating machine is characterized in that: the number of the material distribution grids is two, and the number of the notches in the material receiving groove and the number of the discharging pipes are three.
The centrifugal rotary spiral concentrating machine is characterized in that: the material distribution grating is a wedge-shaped block, and the small end of the wedge-shaped block is arranged upwards and the large end of the wedge-shaped block is arranged downwards.
The centrifugal rotary spiral concentrating machine is characterized in that: the topmost end outer diameter D1 of spiral centrifugal separation groove is 1000mm, and the bottommost end outer diameter D2 of spiral centrifugal separation groove is 500 mm.
The centrifugal rotary spiral concentrating machine is characterized in that: the topmost end outer diameter D1 of spiral centrifugal separation groove is 500mm, and the bottommost end outer diameter D2 of spiral centrifugal separation groove is 100 mm.
The centrifugal rotary spiral concentrating machine is characterized in that: the topmost end outer diameter D1 of spiral centrifugal separation groove is 750mm, and the bottommost end outer diameter D2 of spiral centrifugal separation groove is 300 mm.
The centrifugal rotary spiral concentrating machine is characterized in that: the pitch L between each circle of the spiral centrifugal separation groove is 5 mm-20 mm.
The centrifugal rotary spiral concentrating machine is characterized in that: the pitch L between each circle of the spiral centrifugal separation groove is 12 mm.
Compared with the prior art, the invention has the following advantages:
1. the cross section of the spiral centrifugal separation groove is gradually narrowed, the material running speed is improved, the centrifugal force is increased, the influence of the surface friction force of the spiral centrifugal separation groove is reduced, and the separation precision is improved.
2. The motor is provided with the frequency converter, the speed reducing motor is controlled through the controller, and the rotating speed of the speed reducing motor is controlled, so that the rotating speed of the speed reducing motor is adjusted to meet the requirements of different sorted materials, product grades and recovery rates.
3. The invention has high separation precision, can realize continuous and repeated separation by one device, has high integration level, effectively solves the problems of low separation efficiency and treatment of the spiral separator, fixed separation process, great influence of the parameters of the device on the material separation layering effect and low separation precision, and simultaneously solves the problems that the centrifugal separator difficultly ensures the stability of the separation process and can not realize the concentration.
4. The invention separates the light product and the heavy product in the mineral by the action of the flowing film and the centrifugal force, combines the light product and the heavy product, strengthens the action of flowing film separation and centrifugal separation, changes the diameter of the spiral chute into a gradual change type, the diameter of the spiral chute gradually decreases along with the separation process, the speed of the separation process at the rear end increases, the centrifugal force increases, the difficultly-selected particles are effectively separated, and simultaneously, the influence of the friction force on the speed of the separation process in the chute separation process is reduced.
The invention is described in further detail below with reference to the figures and examples.
Drawings
Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention.
Fig. 2 is a schematic structural diagram of embodiment 2 of the present invention.
Description of reference numerals:
1-a speed reducing motor; 2, a frame; 3-spiral centrifugal separation groove;
4-distributing chute; 5, a receiving trough; 6, a discharge pipe;
7-rotating the main shaft; 8-a feed port; 9-a material distribution grid;
10-a feed box; 11-a frequency converter; 12-a controller.
Detailed Description
Example 1
As shown in fig. 1, the centrifugal rotary spiral concentrator comprises a rack 2, a rotary main shaft 7, a feeding box 10, a spiral centrifugal separation tank 3, a speed reducing motor 1, a frequency converter 11, a controller 12 and a multi-product receiving mechanism, wherein the rotary main shaft 7 is vertically installed in the rack 2 along the central axis of the rack 2, the upper end of the rotary main shaft 7 is rotatably connected with the top center of the rack 2, the lower end of the rotary main shaft 7 is rotatably connected with the bottom center of the rack 2, the spiral centrifugal separation tank 3 is fixedly installed on the outer wall of the rotary main shaft 7, the feeding box 10 is arranged on one side of the top of the rack 2, the bottom of the feeding box 10 is provided with a feeding port 8 for feeding the spiral centrifugal separation tank 3, the lower end of the feeding port 8 is located at the feeding port of the spiral centrifugal separation tank 3, the speed reducing motor 1 is installed on the outer side of the top of the rack, an output shaft of the speed reducing motor 1 is fixedly connected with the upper end of the rotating main shaft 7 and drives the rotating main shaft 7 and the spiral centrifugal separation tank 3 to integrally rotate together, the speed reducing motor 1 is connected with a frequency converter 11, and the frequency converter 11 is connected with a controller 12; many products receiving mechanism sets up at the lower extreme of spiral centrifugal separation groove 3 and can collect the material of selecting separately back different density, the appearance of spiral centrifugal separation groove 3 is radius platform form, the diameter of spiral centrifugal separation groove 3 reduces from last to down gradually, the external diameter D1 at spiral centrifugal separation groove 3 topmost is 1000mm ~ 500mm, the external diameter D2 at spiral centrifugal separation groove 3 bottommost is 500mm ~ 100 mm.
The diameter of the cross section of the spiral centrifugal separation tank 3 is gradually reduced from top to bottom (from the feed inlet to the discharge outlet), and the spiral centrifugal separation tank is of a gradually-changed structure. The speed reducing motor 1 drives the spiral centrifugal separation groove 3 to rotate together, the diameter of the spiral centrifugal separation groove 3 gradually becomes smaller along with the separation process, the speed of the rear-end separation process becomes larger, and the influence of the friction force on the speed of the separation process in the chute separation process is reduced. The cross section of the spiral centrifugal separation groove 3 is gradually narrowed, the material running speed is improved, the influence of the surface friction force of the spiral centrifugal separation groove 3 is reduced, and the separation precision is improved. The speed reducing motor 1 is additionally provided with a frequency converter, the speed reducing motor 1 is controlled through the controller 12, the rotating speed of the speed reducing motor 1 is controlled, and the rotating speed of the speed reducing motor 1 suitable for different sorting materials is conveniently adjusted.
The frequency converter 11 may be a schneider ATV312 frequency converter, and the controller 12 may be a programmable logic controller.
As shown in fig. 1, the multi-product receiving mechanism comprises a distribution chute 4, a receiving chute 5 and a discharge pipe 6, wherein a distribution grid 9 is installed at the bottom in the distribution chute 4, the receiving chute 5 is installed at the bottom of the distribution chute 4, the upper end of the discharge pipe 6 is connected with a discharge port at the bottom of a notch of the receiving chute 5, and the upper end of the distribution chute 4 is fixedly connected with the lower end of a spiral centrifugal separation chute 3; the number of the material distribution grids 9 is one or two, and the number of the notches in the material receiving groove 5 is equal to that of the material discharging pipes 6 and is two or three.
After the materials in the spiral centrifugal separation groove 3 are dispersed, layered and separated through rotary centrifugation, light products and heavy products are produced through a material distribution grid 9 at the bottom of a material distribution chute 4, and the light products and the heavy products are received through a material receiving groove 5. The lower ends of the two discharge pipes 6 can respectively extend into the two annular receiving hoppers to collect materials, the two annular receiving hoppers are sleeved with each other, and the circle centers of the two annular receiving hoppers are located at the same point.
In this embodiment, the number of the distribution grids 9 is one, and one distribution grid 9 can divide the distribution chute 4 into two distribution troughs; correspondingly, the number of the notches in the material receiving groove 5 and the number of the discharging pipes 6 are two, each notch in the material receiving groove 5 corresponds to one material distributing groove and one discharging pipe 6, and the two material distributing grids 9 are used for separating materials with different densities, so that products with two different densities can be produced.
As shown in FIG. 1, the distribution grid 9 is a wedge-shaped block, and the small end of the wedge-shaped block is arranged upwards and the large end of the wedge-shaped block is arranged downwards.
In this embodiment, the outermost diameter D1 of the spiral centrifugal separation tank 3 is 1000mm, and the outermost diameter D2 of the spiral centrifugal separation tank 3 is 500 mm. Alternatively, the outermost diameter D1 of the spiral centrifugal separation tank 3 is 500mm, and the outermost diameter D2 of the spiral centrifugal separation tank 3 is 100 mm.
Preferably, the spiral centrifugal separation tank 3 has an outer diameter D1 at the topmost end of 750mm and the spiral centrifugal separation tank 3 has an outer diameter D2 at the bottommost end of 300 mm.
In this embodiment, the pitch L between the turns of the spiral centrifugal separation tank 3 is 5mm to 20 mm.
Preferably, the pitch L between turns of the spiral centrifugal separation tank 3 is 12 mm.
The working principle of the embodiment is as follows: ore pulp is fed into the spiral centrifugal separation groove 3 from the feeding box 10 through the feeding port 8, and in the spiral centrifugal separation groove 3, the ore pulp rotates downwards along the spiral centrifugal separation groove 3 under the action of gravity; on the other hand, under the action of centrifugal inertia force, the two do transverse circulation movement and form spiral flow in the spiral centrifugal separation groove 3, ore particles with low density are positioned on the upper layer, and ore particles with high density are positioned on the lower layer. The ore particles on the upper layer are acted by high-speed water flow and are subjected to smaller frictional resistance, so that the ore particles are high in movement speed and high in centrifugal force and are pushed to the outer side; the ore particles in the lower layer are slightly influenced by the water flow, but the friction resistance is large, so the moving speed is low, the centrifugal force is small, and the ore particles move to the inner edge of the spiral centrifugal separation groove 3 in the moving process. Therefore, the ore particles having different densities, particle sizes, and shapes are separated at different positions, the ore particles having a large density are located inside the spiral centrifugal separation tank 3, and the ore particles having a small density are located outside the spiral centrifugal separation tank 3.
Example 2
As shown in fig. 2, the present embodiment is different from embodiment 1 in that: the number of the material distribution grids 9 is two, and the number of the notches in the material receiving groove 5 and the number of the material discharging pipes 6 are three. The two distributing grids 9 can divide the distributing chute 4 into three distributing grooves; correspondingly, the number of the notches in the material receiving groove 5 and the number of the discharging pipes 6 are three, each notch in the material receiving groove 5 corresponds to one material distributing groove and one discharging pipe 6, the three material distributing grids 9 are used for separating materials with different densities, and three products with different densities, namely a light product, a heavy product and an intermediate product, can be produced. The sort of the sorted product is determined by the number of the distribution grids 9. The lower end of the three discharge pipes 6 can extend into the three annular receiving hoppers respectively to collect materials, the three annular receiving hoppers are sleeved with the three annular receiving hoppers, and the centers of circles of the three annular receiving hoppers are located at the same point.
In this embodiment, the structure, connection relationship, and operation principle of the remaining portions are the same as those of embodiment 1.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and all simple modifications, changes and equivalent structural changes made to the above embodiment according to the technical spirit of the present invention still fall within the protection scope of the technical solution of the present invention.
Claims (10)
1. A centrifugal rotary spiral concentrator is characterized in that: comprises a frame (2), a rotating main shaft (7), a feeding box (10), a spiral centrifugal separation groove (3), a speed reducing motor (1), a frequency converter (11), a controller (12) and a multi-product receiving mechanism, wherein the rotating main shaft (7) is vertically installed in the frame (2) along the central axis of the frame (2), the upper end of the rotating main shaft (7) is rotatably connected with the top center of the frame (2), the lower end of the rotating main shaft (7) is rotatably connected with the bottom center of the frame (2), the spiral centrifugal separation groove (3) is fixedly installed on the outer wall of the rotating main shaft (7), the feeding box (10) is arranged on one side of the top of the frame (2), the bottom of the feeding box (10) is provided with a feeding port (8) for feeding the spiral centrifugal separation groove (3), the lower end of the feeding port (8) is positioned at the feeding port of the spiral centrifugal separation groove (3), the speed reducing motor (1) is installed on the outer side of the top of the rack (2), an output shaft of the speed reducing motor (1) is fixedly connected with the upper end of the rotating main shaft (7) and drives the rotating main shaft (7) and the spiral centrifugal separation tank (3) to integrally rotate together, the speed reducing motor (1) is connected with the frequency converter (11), and the frequency converter (11) is connected with the controller (12); many products receiving mechanism sets up at the lower extreme of spiral centrifugal separation groove (3) and can collect the material of selecting separately back different density, the appearance of spiral centrifugal separation groove (3) is inverted circular truncated cone form, the diameter of spiral centrifugal separation groove (3) is from last to reducing down gradually, the external diameter D1 of spiral centrifugal separation groove (3) topmost is 1000mm ~ 500mm, the external diameter D2 of spiral centrifugal separation groove (3) bottommost is 500mm ~ 100 mm.
2. A centrifugal rotary spiral concentrator as claimed in claim 1 wherein: the multi-product receiving mechanism comprises a distribution chute (4), a receiving chute (5) and a discharging pipe (6), wherein a distribution grid (9) is mounted at the bottom in the distribution chute (4), the receiving chute (5) is mounted at the bottom of the distribution chute (4), the upper end of the discharging pipe (6) is connected with a discharge port at the bottom of a notch of the receiving chute (5), and the upper end of the distribution chute (4) is fixedly connected with the lower end of the spiral centrifugal separation chute (3); the number of the material distribution grids (9) is one or two, and the number of the notches in the material receiving groove (5) is equal to that of the material discharging pipes (6) and is two or three.
3. A centrifugal rotary spiral concentrator as claimed in claim 2 wherein: the number of the material distribution grids (9) is one, and the number of the notches in the material receiving groove (5) and the number of the material discharging pipes (6) are two.
4. A centrifugal rotary spiral concentrator as claimed in claim 2 wherein: the number of the material distribution grids (9) is two, and the number of the notches in the material receiving groove (5) and the number of the material discharging pipes (6) are three.
5. A centrifugal rotary spiral concentrator as claimed in claim 2 wherein: the material distribution grating (9) is a wedge-shaped block, and the small end of the wedge-shaped block is arranged upwards, and the large end of the wedge-shaped block is arranged downwards.
6. A centrifugal rotary spiral concentrator as claimed in claim 1 wherein: the topmost end outer diameter D1 of the spiral centrifugal separation groove (3) is 1000mm, and the bottommost end outer diameter D2 of the spiral centrifugal separation groove (3) is 500 mm.
7. A centrifugal rotary spiral concentrator as claimed in claim 1 wherein: the topmost end outer diameter D1 of the spiral centrifugal separation groove (3) is 500mm, and the bottommost end outer diameter D2 of the spiral centrifugal separation groove (3) is 100 mm.
8. A centrifugal rotary spiral concentrator as claimed in claim 1 wherein: the topmost end outer diameter D1 of the spiral centrifugal separation groove (3) is 750mm, and the bottommost end outer diameter D2 of the spiral centrifugal separation groove (3) is 300 mm.
9. A centrifugal rotary spiral concentrator as claimed in claim 1 wherein: the pitch L between each circle of the spiral centrifugal separation groove (3) is 5 mm-20 mm.
10. A centrifugal rotary spiral concentrator as claimed in claim 9 wherein: the pitch L between each circle of the spiral centrifugal separation groove (3) is 12 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010020425.4A CN111111903A (en) | 2020-01-09 | 2020-01-09 | Centrifugal rotary spiral concentrating machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010020425.4A CN111111903A (en) | 2020-01-09 | 2020-01-09 | Centrifugal rotary spiral concentrating machine |
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| CN111111903A true CN111111903A (en) | 2020-05-08 |
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| CN202010020425.4A Pending CN111111903A (en) | 2020-01-09 | 2020-01-09 | Centrifugal rotary spiral concentrating machine |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201070597Y (en) * | 2007-02-08 | 2008-06-11 | 邹强 | Anti-centripetal barrel reelecting machine |
| CN201565350U (en) * | 2009-12-15 | 2010-09-01 | 牟联胜 | Spiral vibratory centrifugal concentrating machine |
| CN201603609U (en) * | 2010-01-20 | 2010-10-13 | 梁升源 | Concentrator with rotary variable pitch spiral chute |
| CN207169974U (en) * | 2017-08-16 | 2018-04-03 | 江西省威尔国际矿业装备有限公司 | A kind of Novel rotary spiral chute |
| CN107983527A (en) * | 2018-01-14 | 2018-05-04 | 福建康鑫矿山设备制造有限公司 | A kind of alternation cutting centrifugal rotation spiral concentrator |
| CN108970798A (en) * | 2018-07-23 | 2018-12-11 | 江西石城县南方有色选矿设备制造有限公司 | A kind of novel spiral chute |
| CN211838430U (en) * | 2020-01-09 | 2020-11-03 | 西安科技大学 | Centrifugal rotary spiral concentrating machine |
-
2020
- 2020-01-09 CN CN202010020425.4A patent/CN111111903A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201070597Y (en) * | 2007-02-08 | 2008-06-11 | 邹强 | Anti-centripetal barrel reelecting machine |
| CN201565350U (en) * | 2009-12-15 | 2010-09-01 | 牟联胜 | Spiral vibratory centrifugal concentrating machine |
| CN201603609U (en) * | 2010-01-20 | 2010-10-13 | 梁升源 | Concentrator with rotary variable pitch spiral chute |
| CN207169974U (en) * | 2017-08-16 | 2018-04-03 | 江西省威尔国际矿业装备有限公司 | A kind of Novel rotary spiral chute |
| CN107983527A (en) * | 2018-01-14 | 2018-05-04 | 福建康鑫矿山设备制造有限公司 | A kind of alternation cutting centrifugal rotation spiral concentrator |
| CN108970798A (en) * | 2018-07-23 | 2018-12-11 | 江西石城县南方有色选矿设备制造有限公司 | A kind of novel spiral chute |
| CN211838430U (en) * | 2020-01-09 | 2020-11-03 | 西安科技大学 | Centrifugal rotary spiral concentrating machine |
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