CN211838430U - Centrifugal rotary spiral concentrating machine - Google Patents
Centrifugal rotary spiral concentrating machine Download PDFInfo
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- CN211838430U CN211838430U CN202020045517.3U CN202020045517U CN211838430U CN 211838430 U CN211838430 U CN 211838430U CN 202020045517 U CN202020045517 U CN 202020045517U CN 211838430 U CN211838430 U CN 211838430U
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Abstract
The utility model discloses a centrifugal rotary spiral concentrator, which comprises a frame, a rotary main shaft, a feeding box, a spiral centrifugal separation groove, a speed reduction motor, a frequency converter, a controller and a multi-product receiving mechanism, wherein the rotary main shaft is vertically installed in the frame along the central axis of the frame, the spiral centrifugal separation groove is fixedly installed on the outer wall of the rotary main shaft, the feeding box is arranged on one side of the top of the frame, the bottom of the feeding box is provided with a feeding port, the speed reduction motor is installed on the outer side of the top of the frame, the output shaft of the speed reduction motor is fixedly connected with the upper end of the rotary main shaft, the speed reduction motor is connected with the frequency converter, and the frequency converter; 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 utility model discloses simple structure, separation efficiency is high, strong adaptability, and this sorting equipment is convenient for operate, and process flow is simple.
Description
Technical Field
The utility model belongs to the technical field of the ore dressing, specifically relate to a rotatory spiral concentrator of centrifugation of spiral chute diameter gradual change.
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.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome not enough among the above-mentioned prior art, provide a rotatory spiral concentrator of centrifugation, its equipment structure is simple, and separation efficiency is high, strong adaptability, and this sorting equipment is convenient for operate, and process flow is simple.
In order to achieve the above object, the utility model adopts the following technical scheme: 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 500mm ~ 1000mm, the external diameter D2 at spiral centrifugal separation groove bottom is 100mm ~ 500 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 utility model has the following advantage:
1. the utility model discloses a cross section of spiral centrifugal separation groove narrows gradually, has improved material running speed, and centrifugal force increases, reduces the surperficial friction influence in spiral centrifugal separation groove, has improved the separation precision.
2. The utility model discloses the motor adds the converter to through controller control gear motor, control gear motor's rotational speed is convenient for to the rotation speed that suitable gear motor was adjusted to different sorting materials and product grade and rate of recovery requirement.
3. The utility model discloses the separation precision is high, and an equipment of accessible realizes sorting many times in succession, and the integrated level is high, has effectively solved spiral separator separation efficiency and has handled that low, the separation process is fixed, the material is selected separately the layering effect and is influenced great and the not high problem of separation precision by equipment parameter itself, has solved the difficult stability of guaranteeing the separation process of centrifugal concentrator simultaneously and can not realize the problem of choice.
4. The utility model discloses a flowing film effect and centrifugal force effect separate light result and heavy result in the mineral, combine both, reinforce the effect that flowing film was selected separately and centrifugal separation, change the spiral chute diameter into the gradual change formula simultaneously, along with the sorting process goes on, the spiral chute diameter diminishes gradually, rear end sorting process speed grow, centrifugal force increases, makes the refractory particle obtain effectively selecting separately, has reduced the influence of chute sorting in-process frictional force to sorting process speed simultaneously.
The present invention will be described in further detail with reference to the accompanying drawings 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 sorting 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 500mm ~ 1000mm, the external diameter D2 at spiral centrifugal separation groove 3 bottommost is 100mm ~ 500 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 utility model discloses spiral centrifugal separation groove 3's cross section narrows down gradually, has improved material running speed, reduces spiral centrifugal separation groove 3's surface friction influence, has improved the separation precision. 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, only be the utility model discloses a preferred embodiment, it is not right the utility model discloses do any restriction, all according to the utility model discloses the technical entity all still belongs to any simple modification, change and equivalent structure transform that the above embodiment was done the utility model discloses technical scheme's within the scope of protection.
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, spiral centrifugal separation groove (3) topmost external diameter D1 is 500mm ~ 1000mm, spiral centrifugal separation groove (3) bottommost external diameter D2 is 100mm ~ 500 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.
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CN111111903A (en) * | 2020-01-09 | 2020-05-08 | 西安科技大学 | Centrifugal rotary spiral concentrating machine |
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CN111111903A (en) * | 2020-01-09 | 2020-05-08 | 西安科技大学 | Centrifugal rotary spiral concentrating machine |
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