CN220900679U - Arc plate type electric separation screening machine - Google Patents

Abstract

The utility model discloses an arc plate type electric screening machine which comprises a frame, wherein a plurality of layers of electric screening cavities are arranged in the frame up and down; the electric selection components are arranged in the multi-layer electric selection cavities, each electric selection component comprises a high-voltage power pack, an electrode arc plate, an arc-shaped material guide plate and a mineral separation plate, wherein the electrode arc plates are electrically connected with the high-voltage power packs, and the directions of the material guide cambered surfaces of the arc-shaped material guide plates in two adjacent layers of electric selection cavities are opposite; the arc face of the electrode arc plate is adaptive to the guide cambered surface of the arc-shaped guide plate, the ore separation plate is arranged on one side of the guide cambered surface at the bottom of the arc-shaped guide plate, and non-conductor material separation hoppers and conductor material separation hoppers are respectively arranged on two sides of the bottom of the ore separation plate. The utility model relates to an arc plate type electric screening machine, which belongs to the technical field of mineral separation processing, and can effectively remove impurities in mineral powder materials by utilizing gravity to screen the materials for five times in the falling process in the machine, so that qualified mineral powder is obtained, and the arc plate type electric screening machine has a compact structure and a screening effect.

Description

Arc plate type electric separation screening machine

Technical Field

The utility model relates to the technical field of mineral processing, in particular to an arc plate type electric separation screening machine.

Background

In order to upgrade ilmenite concentrates and reduce the number of silica bricks and phosphorite-containing compounds which are harmful impurities therein, electrowinning is the most effective method.

In the mineral sorting process, an electric sorter is generally used for sorting minerals, and the electric sorter sorts materials by means of electrical property differences of the materials, but in the related art, for example, patent numbers are as follows: the utility model discloses a drum formula electric selector in CN 110918259A's patent document, including ore hopper, ore feeding groove, deflection electrode, corona electrode, drum, brush, one-level division board, two-level division board, connect the ore groove, rotatory turn round, when sieving the powdered ore material in the current equipment, often only once sieving, if need carry out many times sieving, the solution is that increase one or several electric selector more, carry out many times sieving, but use many electric selectors, occupation space is big, need set up the electric selector that corresponds conveyer carried the material to the next level from the electric selector of last level, equipment purchasing cost is high, the energy consumption is high.

Disclosure of utility model

Aiming at the defects, the utility model aims to provide an arc plate type electric screening machine, which solves the technical problem that the existing electric screening machine can not realize multi-stage screening.

In order to achieve the purpose, the utility model provides an arc plate type electric screening machine, which comprises a frame, wherein a plurality of layers of electric screening cavities are arranged in the frame up and down;

The electric selection components are arranged in the multi-layer electric selection cavities, each electric selection component comprises a high-voltage power pack, an electrode arc plate, an arc-shaped material guide plate and a mineral separation plate, wherein the electrode arc plates are electrically connected with the high-voltage power packs, and the directions of the material guide cambered surfaces of the arc-shaped material guide plates in two adjacent layers of electric selection cavities are opposite;

The arc surface of the electrode arc plate is matched with the guide cambered surface of the arc guide plate, the ore separation plate is arranged on one side of the guide cambered surface at the bottom of the arc guide plate, a non-conductor separation hopper and a conductor separation hopper are respectively arranged on two sides of the bottom of the ore separation plate, an inlet of the non-conductor separation hopper is matched with the bottom of the arc guide plate above, and an outlet of the non-conductor separation hopper is matched with the top of the arc guide plate below;

The two sides of the electric separation cavity are connected with the aggregate vertical groove communicated with the outlet of the conductor distribution hopper, and the bottom end of the frame is provided with a non-conductor trough communicated with the non-conductor distribution hopper positioned at the bottommost layer and a conductor trough communicated with the conductor distribution hopper and the aggregate vertical groove.

Preferably, the two ends of the frame are provided with cross beams for separating the inner cavities of the frame into a plurality of layers of electric selection cavities, the outer end faces of the cross beams at the two ends are provided with first supporting seats for supporting the two ends of the ore separating plate, the first supporting seats are provided with first supporting sleeves, the bottom ends of the ore separating plate are provided with first supporting rods which penetrate through the first supporting seats and are rotationally connected with the first supporting sleeves, the end threads of the first supporting rods are connected with first limit nuts which are matched with the end faces of the first supporting sleeves, and one ends of the first supporting rods are connected with first rotating handles which can be abutted against the end faces of the first limit nuts.

Preferably, the cross beams at two ends are provided with support plates, the outer end surfaces of the support plates are provided with insulating hanging plates in a vertical sliding manner, the tops of the insulating hanging plates are provided with vertical sliding grooves, and the insulating hanging plates penetrate through the vertical sliding grooves through bolts and are installed in an adjustable position with the support plates; the utility model discloses a high-voltage power supply device, including electrode arc board, insulating hanger plate, second bracing piece, third twist grip, the electrode arc board, the both ends of electrode arc board are equipped with the wiring board that passes through the wire connection with the electric wire netting that its inside cambered surface was arranged, be equipped with two binding post on the wiring board, be equipped with on the wiring board and pass the second bracing piece that insulating hanger plate set up, be equipped with the cover on the second bracing piece establish with the spacer that terminal surface looks adaptation of wiring board, insulating hanger plate, the tip threaded connection of second bracing piece has the third twist grip.

Preferably, a cam shaft is installed between the supporting plates at two ends in a rotatable manner, and a cam surface structure of the cam shaft is abutted to the back surface of the arc-shaped material guide plate.

Preferably, the second supporting seats for supporting two ends of the cam shaft are arranged on the supporting plate, the second supporting seats are provided with second supporting sleeves, a round shaft of the cam shaft penetrates through the second supporting seats to be connected with the second supporting sleeves in a rotating mode, a second limit nut which is adaptive to the end face of the second supporting sleeve is connected to the end portion of the round shaft of the cam shaft in a threaded mode, and a second rotating handle which can be abutted to the end face of the second limit nut is connected to one end of the round shaft of the cam shaft in a threaded mode.

Preferably, the middle of the frame is provided with an aggregate vertical groove, each inner cavity of the frame is divided into two electric selection cavities which are symmetrically arranged by the aggregate vertical groove in the middle of the frame, and electric selection components which are symmetrically arranged with respect to the aggregate vertical groove in the middle of the frame are arranged in the two electric selection cavities of each layer.

Preferably, two sides of the aggregate vertical groove in the middle of the frame are provided with aggregate ports communicated with the corresponding conductor distribution hoppers of the electric separation assembly, namely, the conductor distribution hoppers of the two electric separation cavities on the same layer share the aggregate vertical groove in the middle of the frame.

Preferably, a blanking device is arranged at the top end of the frame, blanking hoppers which are matched with the tops of the arc-shaped guide plates positioned at the topmost layer are arranged at two sides of the top end of the frame, and a blanking opening which is communicated with an inlet of the blanking hopper is arranged at the bottom end of the blanking device.

Preferably, the blanking device comprises a feeding box and a blanking box, wherein two first V-shaped preheating hoppers are symmetrically arranged at the top in the feeding box, and the blanking box is arranged below the two first V-shaped preheating hoppers; the top of the blanking box is provided with two feeding hoppers which are matched with the outlets of the first V-shaped preheating hoppers, the bottom end of each feeding hopper is provided with a roller blanking mechanism, two second V-shaped preheating hoppers are correspondingly arranged below the two roller blanking mechanisms in the blanking box, and the outlets of the second V-shaped preheating hoppers are matched with the inlets of the blanking hoppers; and a heating pipe is arranged in the first V-shaped preheating hopper and the second V-shaped preheating hopper.

Preferably, the roller unloading mechanism includes the unloading logical groove that the bottom of feeder hopper was equipped with its inner chamber intercommunication, the notch department of unloading logical groove bottom is equipped with the elastic sheet that extends to one side slope and set up, be located in the unloading case the below of unloading logical groove is installed the roller through the bearing rotation, be equipped with on the outer wall of roller and stir the strip of scraping of elastic sheet, be equipped with the drive on the feeding case roller pivoted motor and belt drive assembly.

Compared with the prior art, the utility model has the following beneficial effects:

In the arc plate type electric screening machine, after high-voltage static electricity is connected, minerals enter a high-voltage electric field region when the minerals slide downwards through the electrode arc plates and approach the electrode arc plates, conductive minerals are induced to be electrified and attracted to electrodes, but due to the action of gravity, the motion trail of the minerals is different from that of non-conductive minerals and are discharged from the front, the non-conductive minerals are also acted by an electric field and are not attracted to enter a lower layer for recleaning, five times are checked until mineral products are qualified, and the materials are screened for five times in the falling process in the machine by utilizing the gravity, so that impurities in mineral powder materials can be effectively removed, qualified mineral powder is obtained, and the machine has a compact structure and a screening effect;

(2) The multi-stage screening of the materials can be realized, the mineral powder materials can automatically fall from the first layer to the bottommost end under the action of gravity, and in five-time screening, a conveying device is not required to be arranged for conveying and carrying the materials, and the whole arc plate type electric screening machine is of an integrated structure, so that the occupied space is small, the internal structure is compact, and the energy consumption is low;

(3) According to the arc plate type electric screening machine, the blanking device is arranged to heat and dry the materials, the temperature of the conductive materials is increased to improve the conductivity, the electric screening assembly is convenient to screen the conductive materials, the energy consumption of the electric screening assembly can be reduced, the energy saving effect is ensured, the working voltage of a high-voltage bag is low, the service life is long, the maintenance frequency of equipment is reduced, and the equipment cost is reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are required to be used in the description of the embodiments will be briefly described below. Like elements or portions are generally identified by like reference numerals throughout the several figures. In the drawings, elements or portions thereof are not necessarily drawn to scale.

FIG. 1 is a perspective view of the structure of the arc plate type electric separation screening machine of the present utility model.

FIG. 2 is a perspective view of the construction of the arc plate type electric separation screening machine of the present utility model with the blanking member removed.

Fig. 3 is an enlarged view of a partial structure in fig. 1.

Fig. 4 is a front view showing the internal structure of the arc plate type electric separation screen according to the present utility model.

Fig. 5 is an enlarged schematic view of the internal structure of the unloader in the present utility model.

Fig. 6 is an enlarged schematic view of the assembly of the electrode arc plate, the mineral separation plate and the cam shaft in the present utility model.

Fig. 7 is an enlarged top view of the structure of the camshaft assembly of the present utility model.

Fig. 8 is an enlarged schematic view of the structure of the mineral separation plate assembly in the present utility model.

Fig. 9 is an enlarged schematic view of the structure of the electrode arc plate assembly of the present utility model.

Fig. 10 is an enlarged schematic view of the electrode arc plate of the present utility model.

The main reference numerals illustrate: 1. a frame; 2. electric cavity selection; 3. an electrode arc plate; 4. an arc-shaped material guide plate; 5. a mineral separation plate; 6. a conductor distribution hopper; 7. a non-conductor dispensing hopper; 8. a vertical aggregate groove; 9. a conductor trough; 10. a non-conductor trough; 11. a cross beam; 12. a first support base; 13. a first support sleeve; 14. a first support bar; 15. a first limit nut; 16. a first rotary handle; 17. a support plate; 18. an insulating hanger plate; 19. a vertical chute; 20. a wiring board; 21. a connection terminal; 22. a second support bar; 23. a spacer bush; 24. a second rotating handle; 25. a cam shaft; 26. a second support base; 27. a second support sleeve; 28. the second limit nut; 29. a material collecting port; 30. a blanking device; 31. discharging a hopper; 32. a feed box; 33. discharging boxes; 34. a first V-shaped pre-heat hopper; 35. a feed hopper; 36. a roller blanking mechanism; 37. a second V-shaped preheating hopper; 38. a cam surface structure; 39. discharging through grooves; 40. an elastic sheet; 41. a roller; 42. scraping the strip; 43. a motor; 44. a belt drive assembly; 45. a mixing trough; 46. and a third rotating handle.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model. Hereinafter, an embodiment of the present utility model will be described in accordance with its entire structure.

The specific embodiments of the present utility model are as follows:

Examples

As shown in figures 1-10, the arc plate type electric screening machine comprises a frame 1, wherein five layers of electric screening cavities 2 are arranged in the frame 1 up and down, and the five layers are a first layer, a second layer, a third layer, a fourth layer and a fifth layer from top to bottom in sequence;

The five-layer electric selection cavity 2 is internally provided with electric selection components, each electric selection component comprises a high-voltage power supply package, an electrode arc plate 3, an arc-shaped material guide plate 4 and a mineral separation plate 5, wherein the electrode arc plates 3 are electrically connected with the high-voltage power supply package, the arc-shaped material guide plates 4 are grounded stainless steel plates, the electrode arc plates 3 are arc-shaped high-voltage electrostatic plates, the outer shells of the electrode arc plates 3 are aluminum plates, and the directions of the material guide cambered surfaces of the arc-shaped material guide plates 4 in two adjacent layers of electric selection cavities 2 are opposite; namely, the directions of the material guiding cambered surfaces of the arc-shaped material guiding plates 4 in the electric separation assembly of the five-layer electric separation cavity 2 are alternately changed, so that mineral powder materials can flow from the arc-shaped material guiding plates 4 of the first-layer electric separation cavity 2 to the arc-shaped material guiding plates 4 in the fifth-layer electric separation cavity 2 in sequence.

The arc surface of the electrode arc plate 3 is matched with the arc-shaped arched surface of the arc-shaped material guide plate 4, the ore separation plate 5 is arranged on one side of the material guide cambered surface at the bottom of the arc-shaped material guide plate 4, the two sides of the bottom of the ore separation plate 5 are respectively provided with a conductor material separation hopper 6 and a non-conductor material separation hopper 7, the inlet of the non-conductor material separation hopper 7 is matched with the bottom of the arc-shaped material guide plate 4 above, and the outlet of the non-conductor material separation hopper 7 is matched with the top of the arc-shaped material guide plate 4 below;

The two sides of the five-layer electric separation cavity 2 are jointly connected with an aggregate vertical groove 8 communicated with the outlet of the conductor distribution hopper 6, and the bottom end of the frame 1 is provided with a non-conductor trough 10 communicated with the non-conductor distribution hopper 7 positioned at the bottommost layer and a conductor trough 9 communicated with the conductor distribution hopper 6 and the aggregate vertical groove 8.

In the arc plate type electric screening machine, an electrode arc plate 3 capable of generating an electric field is arranged, mineral powder materials fall onto an arc-shaped material guide plate 4 of a first layer of electric screening cavity 2 from the upper part, slide down along a material guide cambered surface of the arc-shaped material guide plate 4, and when the mineral powder materials slide onto an arc-shaped arch surface of the arc-shaped material guide plate 4, under the action of centrifugal force and under the action of the electric field attraction of the electrode arc plate 3, iron-containing mineral powder or conductive mineral powder in the mineral powder materials offset a larger distance relative to non-conductor materials in the direction of the electrode arc plate 3 under the action of the electric field attraction of the electrode arc plate 3, then fall down under the action of gravity, the conductor materials and the non-conductor materials enter a conductor distributing hopper 6 under the separation of a mineral separating plate 5, and the non-conductor materials enter a non-conductor distributing hopper 7; then, the conductor materials enter a material collecting vertical groove 8 from a conductor distributing hopper 6 to be collected, the non-conductor materials continuously fall onto an arc-shaped material guide plate 4 of the lower electric selecting cavity 2 from the non-conductor distributing hopper 7, are screened again by a lower electric selecting component layer, and after being screened for five times, the iron and copper containing materials in the mineral powder materials are effectively taken out to obtain non-conductor materials, and are collected into a conductor groove 9 at the lowest position;

According to the arc plate type electric screening machine, after high-voltage static electricity is connected, minerals slide downwards through the electrode arc plates 3 to be close to the electrode arc plates 3, enter a high-voltage electric field region, conductive minerals are induced to be electrified and attracted to electrodes, but due to the action of gravity, the motion trail of the conductive minerals is different from that of non-conductive minerals and are discharged from the front, the non-conductive minerals are also subjected to the action of an electric field and are not attracted to enter the lower layer for re-screening, five times are checked until mineral products are qualified, and impurities in mineral powder materials can be effectively removed through five times of screening, so that qualified mineral powder is obtained;

This arc plate formula electric separation screening machine can realize carrying out multistage screening to the material, utilizes gravity effect, and the powdered ore material can fall to the bottom from the first floor voluntarily, in the five times separation, need not to set up conveyer and carry, transport the material, and whole arc plate formula electric separation screening machine is integrated form structure, and occupation space is little, and inner structure is compact, and the energy consumption is low.

Further, two ore separating plates 5 are arranged on the bottom-most layer of electric selecting cavity 2, the two ore separating plates 5 are arranged below the electrode arc plate 3, and a conductor trough 9, a non-conductor trough 10 and a mixing trough 45 are arranged below the two ore separating plates 5. The two ore separating plates 5 respectively separate powder with higher conductor content, powder with lower conductor content and non-conductor powder into a conductor trough 9, a mixing trough 45 and a non-conductor trough 10. The powder with lower conductor content in the mixing tank 45 can be conveyed into the first layer electric separation cavity 2 again and separated by the electric separation assembly again.

Further, the two ends of the frame 1 are provided with cross beams 11 for dividing the inner cavity of the frame into five layers of electric selecting cavities 2, the outer end faces of the cross beams 11 at the two ends are provided with first supporting seats 12 for supporting two ends of the ore separating plate 5, the first supporting seats 12 are connected with the cross beams 11 through bolts, the first supporting seats 12 are provided with first supporting sleeves 13, the bottom ends of the ore separating plate 5 are provided with first supporting rods 14 which penetrate through the first supporting seats 12 and are rotationally connected with the first supporting sleeves 13, the end parts of the first supporting rods 14 are in threaded connection with first limit nuts 15 which are matched with the end faces of the first supporting sleeves 13, and one ends of the first supporting rods 14 are in threaded connection with first rotating handles 16 which can be in butt joint with the end faces of the first limit nuts 15. The inclination angle of the ore separation plate 5 can be adjusted by loosening the first rotating handle 16 and the first limiting nut 15 at one end of the first supporting rod 14, and then the ore separation plate 5 can be positioned by tightening the first limiting nut 15 and the first rotating handle 16.

Further, the cross beams 11 at two ends are provided with a supporting plate 17, the outer end surface of the supporting plate 17 is provided with an insulating hanging plate 18 capable of vertically sliding, the top of the insulating hanging plate 18 is provided with a vertical chute 19, and the insulating hanging plate 18 passes through the vertical chute 19 through the bolt to be installed with the supporting plate 17 in an adjustable position; the two ends of the electrode arc plate 3 are provided with wiring boards 20 connected with a power grid arranged on the inner cambered surface of the electrode arc plate through wires, the wiring boards 20 are provided with two wiring terminals 21, the wiring boards 20 are provided with second supporting rods 22 penetrating through the insulating hanging boards 18, the second supporting rods 22 are provided with spacer sleeves 23 sleeved with the wiring boards 20 and the end surfaces of the insulating hanging boards 18, the spacer sleeves 23 are insulating pieces, and the end parts of the second supporting rods 22 are in threaded connection with nuts and third rotating handles 46. The two wiring terminals 21 on the wiring board 20 are respectively connected with the wiring terminals 21 on the electrode arc boards 3 positioned on the upper layer and the lower layer through wires, and the wiring terminals 21 at the two ends of each electrode arc board 3 are electrically connected with the output end of the high-voltage power supply pack after being connected in parallel through wires. The insulating hanger plate 18 can be adjusted up and down to adjust the position of the electrode arc plate 3.

The second support rod 22 can rotate relative to the insulating hanger plate 18, the angle of the electrode arc plate 3 can be adjusted, and the second support rod 22 and the insulating hanger plate 18 can be positioned and fixed through nuts and the third rotating handle 46.

The support plate 17 includes an inclined plate portion connected to the cross beam 11 and extending obliquely outward, and a vertical plate portion provided at the top end of the inclined plate portion, and the insulating hanger plate 18 is mounted on the vertical plate portion.

Further, a cam shaft 25 is rotatably installed between the support plates 17 at the two ends to an angle, and a cam surface structure 38 of the cam shaft 25 is abutted against the back surface of the arc-shaped material guide plate 4. The cam surface structure 38 is a cylindrical structure, and the cam shaft 25 is provided at an eccentric position of an end surface of the cylindrical structure.

Further, a second supporting seat 26 for supporting two ends of the cam shaft 25 is arranged on the supporting plate 17, a second supporting sleeve 27 is arranged on the second supporting seat 26, a round shaft of the cam shaft 25 penetrates through the second supporting seat 26 to be in rotary connection with the second supporting sleeve 27, a second limit nut 28 adapting to the end face of the second supporting sleeve 27 is in threaded connection with the end face of the round shaft of the cam shaft 25, and a second rotating handle 24 capable of being in butt joint with the end face of the second limit nut 28 is in threaded connection with one end of the round shaft of the cam shaft 25. The cam shaft 25 and the second supporting seat 26 can be positioned through the second limit nut 28 and the second rotating handle 24, and the angle of the cam surface structure 38 on the cam shaft 25 can be adjusted, so that the extrusion position of the cam surface structure 38 to the arc-shaped material guide plate 4 is adjusted, the top end of the arc-shaped material guide plate 4 is hung on the top of the electric selection cavity 2 through a hook, the arc-shaped material guide plate 4 can rotate, the bottom end of the arc-shaped material guide plate 4 can move, and the position of powder sliding from the bottom end of the arc-shaped material guide plate 4 can be adjusted.

Examples

The technical scheme of the embodiment is an improvement on the technical scheme of the embodiment, and the improvement is that as shown in figures 1 to 4, the inner cavity of the frame 1 is divided into two halves which are bilaterally symmetrical to form a double-row electric selection cavity 2, an aggregate vertical groove 8 is arranged in the middle of the frame 1, each inner cavity of the frame 1 is divided into two electric selection cavities 2 which are symmetrically arranged by the aggregate vertical groove 8 in the middle of the frame 1, and electric selection components which are symmetrically arranged about the aggregate vertical groove 8 in the middle of the frame 1 are arranged in the two electric selection cavities 2 of each layer. One or more rows of electric selection cavities 2 can be added according to the requirement, the electric selection efficiency is improved, the structure of the whole device only increases the occupied space of the electric selection cavities 2, the structure is compact, and compared with the scheme that the yield is improved by increasing the number of the whole equipment in the prior art, the technical scheme of the embodiment is better, and the effect is better.

The two sides of the aggregate vertical groove 8 in the middle of the frame 1 are provided with aggregate openings 29 communicated with the conductor distribution hoppers 6 of the corresponding electric selection components, namely, the two conductor distribution hoppers 6 of the same layer, which are close to the middle of the frame 1, share the aggregate vertical groove 8 in the middle of the frame 1. The middle material collecting vertical groove 8 can be shared, so that the structure occupies small space and is compact in structure.

Examples

The technical solution of this embodiment is an improvement on the technical solution of the foregoing embodiment, and the improvement is that, as shown in fig. 5 to 10, a blanking device 30 is added, a blanking device 30 is disposed at the top end of the frame 1, blanking hoppers 31 corresponding to the tops of the arc-shaped material guiding plates 4 located at the topmost layer are disposed at two sides of the top end of the frame 1, and a blanking port communicated with an inlet of the blanking hopper 31 is disposed at the bottom end of the blanking device 30.

The blanking device 30 comprises a feeding box 32 and a blanking box 33, wherein two first V-shaped preheating hoppers 34 are symmetrically arranged at the top in the feeding box 32, and the blanking box 33 is arranged below the two first V-shaped preheating hoppers 34; the top of the blanking box 33 is provided with two feeding hoppers 35 which are matched with the outlets of the first V-shaped preheating hoppers 34, the bottom end of each feeding hopper 35 is provided with a roller blanking mechanism 36, two second V-shaped preheating hoppers 37 are correspondingly arranged below the two roller blanking mechanisms 36 in the blanking box 33, and the outlets of the second V-shaped preheating hoppers 37 are matched with the inlets of the blanking hoppers 31; a heating pipe is provided in the first V-shaped preheating hopper 34 and the second V-shaped preheating hopper 37.

The setting glassware heats and dries the material, improves the temperature of electric conductor material and in order to improve conductive property, and the electric selection subassembly of being convenient for sieves the electric conductor material, can reduce the energy consumption of electric selection subassembly, and it is more energy-conserving when guaranteeing to select separately effectually, and the operating voltage of high-pressure package becomes low, long service life has reduced the maintenance frequency of equipment, has reduced equipment cost.

The roller discharging mechanism 36 comprises a discharging through groove 39 which is arranged at the bottom end of the feeding hopper 35 and is communicated with the inner cavity of the feeding hopper, an elastic sheet 40 which is obliquely arranged towards one side is arranged at a notch of the bottom end of the discharging through groove 39, a roller 41 is rotatably arranged below the discharging through groove 39 in the discharging box 33 through a bearing, a scraping strip 42 which can stir the elastic sheet 40 is arranged on the outer cylinder wall of the roller 41, a motor 43 and a belt transmission assembly 44 which are used for driving the roller 41 to rotate are arranged on the feeding box 32, and two ends of a central shaft of the roller 41 penetrate through the walls of the discharging box 33 and the feeding box 32. The feed box 32 has a protective housing at each end, and a belt drive assembly 44, wires for supplying power to the electric heating tubes, a switch, a controller, and conventional equipment such as a power supply are disposed in the protective housing.

In this embodiment, the motor 43 drives the roller 41 to rotate, the plurality of scraping strips 234 on the outer cylindrical surface of the roller 41 intermittently stir the elastic sheet 40, the elastic sheet 40 vibrates, so that the blanking through groove 39 vibrates, the material in the feed hopper 35 is convenient to fall, the faster the roller 41 rotates, the faster the material in the feed hopper 35 is, the material blanking speed can be adjusted, and the requirement of the underlying electrical selection assembly on the material blanking speed under certain power is met.

The foregoing description of specific exemplary embodiments of the utility model has been presented for the purpose of illustration and description, but it is not intended to limit the utility model to the precise form disclosed, and it is apparent that many changes and modifications may be made in accordance with the above teachings, and while embodiments of the utility model have been shown and described, this specific embodiment is merely illustrative of the utility model and not restrictive, the particular features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner, the exemplary embodiments being selected and described for the purpose of explaining the specific principles of the utility model and its practical application, so that modifications, substitutions, variations, and various other changes may be made to the embodiments without creatively departing from the principles and spirit of the utility model as desired by those skilled in the art without departing from the scope of the patent claims.

Claims (10)

1. An arc plate type electric screening machine comprises a frame (1) and is characterized in that a plurality of layers of electric screening cavities (2) are arranged in the frame (1) up and down;

The electric separation assemblies are arranged in the multi-layer electric separation cavities (2), and each electric separation assembly comprises a high-voltage power pack, an electrode arc plate (3), an arc-shaped material guide plate (4) and a mineral separation plate (5), wherein the electrode arc plates (3) are electrically connected with the high-voltage power pack, and the directions of the material guide cambered surfaces of the arc-shaped material guide plates (4) in two adjacent layers of electric separation cavities (2) are opposite;

The arc surface of the electrode arc plate (3) is matched with the guide cambered surface of the arc guide plate (4), the ore separation plate (5) is arranged on one side of the guide cambered surface at the bottom of the arc guide plate (4), a non-conductor separating hopper (7) and a conductor separating hopper (6) are respectively arranged on two sides of the bottom of the ore separation plate (5), an inlet of the non-conductor separating hopper (7) is matched with the bottom of the arc guide plate (4) above, and an outlet of the non-conductor separating hopper (7) is matched with the top of the arc guide plate (4) below;

The two sides of the electric separation cavity (2) are connected with an aggregate vertical groove (8) communicated with the outlet of the conductor distribution hopper (6) together, and the bottom end of the frame (1) is provided with a non-conductor trough (10) communicated with a non-conductor distribution hopper (7) positioned at the bottommost layer and a conductor trough (9) communicated with the conductor distribution hopper (6) and the aggregate vertical groove (8).

2. The arc plate type electric screening machine according to claim 1, wherein two ends of the frame (1) are provided with a cross beam (11) for dividing an inner cavity of the frame into multiple layers of electric screening cavities (2), the outer end faces of the cross beam (11) at two ends are provided with first supporting seats (12) for supporting two ends of the ore separating plate (5), the first supporting seats (12) are provided with first supporting sleeves (13), the bottom end of the ore separating plate (5) is provided with first supporting rods (14) which penetrate through the first supporting seats (12) and are in rotary connection with the first supporting sleeves (13), the end parts of the first supporting rods (14) are in threaded connection with first limit nuts (15) which are matched with the end faces of the first supporting sleeves (13), and one end of each first supporting rod (14) is in threaded connection with a first rotary handle (16) which can be abutted with the end faces of the first limit nuts (15).

3. The arc plate type electric screening machine according to claim 2, wherein a supporting plate (17) is arranged on the cross beams (11) at two ends, an insulating hanging plate (18) is vertically and slidably arranged on the outer end face of the supporting plate (17), a vertical chute (19) is arranged at the top of the insulating hanging plate (18), and the insulating hanging plate (18) is installed with the supporting plate (17) in an adjustable position through bolts passing through the vertical chute (19); the utility model discloses a high-voltage power supply device, including electrode arc board (3), terminal plate (20) that electric wire netting that electrode arc board (3) was arranged is equipped with through the wire with the electric wire connection of its inside cambered surface, be equipped with two binding post (21) on terminal plate (20), be equipped with on terminal plate (20) and pass second bracing piece (22) that insulating hanger plate (18) set up, be equipped with on second bracing piece (22) overlap establish with spacer (23) that terminal plate (20), insulating hanger plate (18) terminal surface suited, the tip threaded connection of second bracing piece (22) has third twist grip (46).

4. A machine according to claim 3, characterized in that a cam shaft (25) is mounted rotatably to an angle between the support plates (17) at both ends, the cam surface structure (38) of the cam shaft (25) being in abutment with the back of the arcuate guide plate (4).

5. The arc plate type electric screening machine according to claim 4, wherein a second supporting seat (26) for supporting two ends of the cam shaft (25) is arranged on the supporting plate (17), a second supporting sleeve (27) is arranged on the second supporting seat (26), a circular shaft of the cam shaft (25) penetrates through the second supporting seat (26) to be rotationally connected with the second supporting sleeve (27), a second limiting nut (28) which is adaptive to the end face of the second supporting sleeve (27) is in threaded connection with the end face of the circular shaft of the cam shaft (25), and a second rotating handle (24) which can be in butt joint with the end face of the second limiting nut (28) is in threaded connection with one end face of the circular shaft of the cam shaft (25).

6. An arc plate type electric screening machine according to any one of claims 1 to 5, wherein an aggregate vertical groove (8) is formed in the middle of the frame (1), the aggregate vertical groove (8) in the middle of the frame (1) divides each inner cavity of the frame (1) into two electric screening cavities (2) which are symmetrically arranged, and electric screening components which are symmetrically arranged about the aggregate vertical groove (8) in the middle of the frame (1) are arranged in the two electric screening cavities (2) of each layer.

7. The arc plate type electric screening machine according to claim 6, wherein aggregate vertical grooves (8) in the middle of the machine frame (1) are arranged on two sides of an aggregate vertical groove (8) and are communicated with corresponding conductor distribution hoppers (6) of the electric screening assembly, namely, the conductor distribution hoppers (6) of two electric screening cavities (2) on the same layer share the aggregate vertical groove (8) in the middle of the machine frame (1).

8. The arc plate type electric screening machine according to claim 6, wherein a blanking device (30) is arranged at the top end of the frame (1), blanking hoppers (31) which are matched with the tops of the arc-shaped material guiding plates (4) positioned at the topmost layer are arranged at two sides of the top end of the frame (1), and blanking openings which are communicated with inlets of the blanking hoppers (31) are arranged at the bottom ends of the blanking devices (30).

9. The arc plate type electric screening machine according to claim 8, wherein the blanking device (30) comprises a feeding box (32) and a blanking box (33), two first V-shaped preheating hoppers (34) are symmetrically arranged at the top in the feeding box (32), and the blanking box (33) is arranged below the two first V-shaped preheating hoppers (34); the top of the blanking box (33) is provided with two feeding hoppers (35) which are matched with the outlets of the first V-shaped preheating hoppers (34), the bottom end of each feeding hopper (35) is provided with a roller blanking mechanism (36), two second V-shaped preheating hoppers (37) are correspondingly arranged below the two roller blanking mechanisms (36) in the blanking box (33), and the outlets of the second V-shaped preheating hoppers (37) are matched with the inlets of the blanking hoppers (31); and a heating pipe is arranged in the first V-shaped preheating hopper (34) and the second V-shaped preheating hopper (37).

10. The arc plate type electric screening machine according to claim 9, wherein the roller blanking mechanism (36) comprises a blanking through groove (39) which is arranged at the bottom end of the feed hopper (35) and is communicated with an inner cavity of the feed hopper, an elastic sheet (40) which is obliquely arranged towards one side and extends is arranged at a notch of the bottom end of the blanking through groove (39), a roller (41) is rotatably arranged below the blanking through groove (39) in the blanking box (33) through a bearing, a scraping strip (42) capable of stirring the elastic sheet (40) is arranged on the outer cylinder wall of the roller (41), and a motor (43) and a belt transmission assembly (44) which are used for driving the roller (41) to rotate are arranged on the feeding box (32).