CN113058742B - Iron ore subdivision and screening device through magnetic force - Google Patents

Iron ore subdivision and screening device through magnetic force Download PDF

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Publication number
CN113058742B
CN113058742B CN202110438003.3A CN202110438003A CN113058742B CN 113058742 B CN113058742 B CN 113058742B CN 202110438003 A CN202110438003 A CN 202110438003A CN 113058742 B CN113058742 B CN 113058742B
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plate
shaped
frame
iron ore
arc
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CN113058742A (en
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胡文波
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Xinjiang Xinghongtai Co ltd
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Xinjiang Xinghongtai Co ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B03SEPARATION 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
    • B03CMAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C1/00Magnetic separation
    • B03C1/02Magnetic separation acting directly on the substance being separated
    • B03C1/30Combinations with other devices, not otherwise provided for
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B03SEPARATION 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
    • B03CMAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C1/00Magnetic separation
    • B03C1/02Magnetic separation acting directly on the substance being separated
    • B03C1/10Magnetic separation acting directly on the substance being separated with cylindrical material carriers
    • B03C1/12Magnetic separation acting directly on the substance being separated with cylindrical material carriers with magnets moving during operation; with movable pole pieces
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/46Constructional details of screens in general; Cleaning or heating of screens
    • B07B1/4609Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
    • B07B1/4636Regulation of screen apertures

Abstract

The invention relates to the field of iron ore sorting, in particular to a device for subdividing and screening iron ores by magnetic force, which comprises a bottom support frame, a support plate, a rotary conveying mechanism, a dispersing mechanism and the like; the bottom support frame is welded with a support plate, the bottom support frame is provided with a rotary conveying mechanism, and the dispersing mechanism is positioned on the top surface of the bottom support frame. Adjusting screw and promotion wedge plate movement distance are regulated and control according to iron ore size in the iron ore heap through the staff to distance and rotor plate swing range between regulation belt pulley scraping plate and the rotating cylinder, and then can be according to the iron ore size of iron ore heap with iron ore from the rotating cylinder thoroughly scrape down, and can adjust grit screening range.

Description

Iron ore subdivision screening device through magnetic force
Technical Field
The invention relates to the field of iron ore separation, in particular to a device for finely dividing and screening iron ores through magnetic force.
Background
The separation of iron ore is also called mineral separation, the iron ore separation process flow aims at the processing of iron ore materials and comprises crushing and screening, grinding and grading, separation and dehydration, the crushing and screening are the crushing and screening of the iron ore, the granularity of the crushed ore can be ensured to provide ore meeting the size requirement for the next process flow, the mineral separation generally comprises gravity separation, flotation and magnetic separation, and the iron ore can be used in the separation process according to the property of iron.
Currently, magnetite selected in China is thin in particle size, so that it is more and more difficult to improve the concentrate grade by a single magnetic separation method, the magnetic separation method and anion reverse flotation are combined to realize advantage complementation in the process of separating magnetite, and the separation method has more flows and more complex procedures.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a magnetic iron ore subdividing and screening device which can fully sort iron ores, can adjust the screening range according to the sizes of the iron ores in different iron ore piles and can screen weak magnetic iron ores.
The technical scheme of the invention is as follows: the utility model provides a through magnetic force to iron ore segmentation sieving mechanism, includes bottom sprag frame, backup pad, rotates conveying mechanism, dispersion mechanism, bottom scraping mechanism and tentatively screens the mechanism, and the welding has the backup pad on the bottom sprag frame, is provided with on the bottom sprag frame and rotates conveying mechanism, and dispersion mechanism is located bottom sprag frame top surface, and the bottom scraping mechanism sets up in the backup pad, and the backup pad top surface is provided with tentatively screens the mechanism.
As a preferred technical scheme of the invention, the rotary conveying mechanism comprises a supporting plate, a motor, a first gear, a rotary shaft, a second gear, a rotary cylinder and a magnet block, wherein the supporting plate is welded on a bottom supporting frame, the motor is fixedly arranged on the supporting plate, the first gear is fixedly connected on an output shaft of the motor, the rotary shaft is rotatably connected on the bottom supporting frame, two pairs of gears are symmetrically and fixedly connected on the rotary shaft, the second gear is mutually matched with the first gear, the rotary cylinder is welded on the rotary shaft, the magnet block is fixedly connected on the bottom supporting frame, and the magnet block is positioned in the rotary cylinder.
As a preferred technical scheme of the invention, the dispersing mechanism comprises support columns, a first groove grid plate and reset springs, wherein the support columns are symmetrically and fixedly connected to the top surface of the bottom support frame, the two support columns are matched together to play a guiding role, the first groove grid plate is connected to the two support columns in a sliding mode, the first groove grid plate is fixedly connected with a pair of reset springs, one end of each reset spring is connected with the support column, and the support column penetrates through the reset springs.
As a preferred technical scheme of the invention, the bottom scraping mechanism comprises a support rod, an adjusting nut, an adjusting screw rod, a pushing wedge-shaped plate, a slotting support frame, a scraping plate with pulleys and an extension spring, wherein the support rod is welded on the support plate, the bottom end of the support rod is provided with the adjusting nut, the adjusting nut is internally connected with the adjusting screw rod in a threaded connection mode, one end of the adjusting screw rod is welded with the pushing wedge-shaped plate, two sides in the bottom support frame are fixedly connected with the slotting support frame, the two slotting support frames are jointly connected with the scraping plate with the pulleys in a sliding mode, the scraping plate with the pulleys is mutually contacted with the pushing wedge-shaped plate, the top surface of the slotting support frame is fixedly connected with the extension spring, and one end of the extension spring is connected with the scraping plate with the pulleys.
As a preferred technical scheme of the invention, the preliminary screening mechanism comprises a screen plate, supporting blocks, rotating plates, T-shaped connecting rods, cylinders, guide blocks and H-shaped connecting rods, wherein the screen plate is arranged on the top surface of the supporting plate, the supporting blocks are arranged on the bottom surface of the screen plate in an arrangement and distribution mode, the rotating plates are connected to two supporting blocks on the same level in a common rotating mode, strip-shaped grooves are formed in two sides of a plurality of the rotating plates, the T-shaped connecting rods are connected in the strip-shaped grooves in a sliding mode and are welded with the rotating plates, the cylinders are fixedly connected to two sides of one rotating plate, the guide blocks are symmetrically and fixedly connected to a pushing wedge-shaped plate, the H-shaped connecting rods are connected to two slotted supporting frames in a sliding mode, the H-shaped connecting rods are in limit fit with the guide blocks, and the cylinders are also in limit fit with the H-shaped connecting rods.
The anti-blocking screening mechanism is arranged on the top surface of the bottom support frame and comprises a special-shaped support frame, a second groove grid plate, a transmission shaft, a third gear and a swinging rod, the special-shaped support frame is symmetrically and fixedly arranged on the top surface of the bottom support frame, the second groove grid plate is connected to the special-shaped support frame in a rotating mode, the transmission shaft is connected to the special-shaped support frame in a rotating mode, the third gear is welded to the transmission shaft and is mutually matched with the second gear, the swinging rod is connected to one side of the third gear in a rotating mode, and the swinging rod is connected with the second groove grid plate in a rotating mode.
As a preferred technical scheme of the invention, the device also comprises a weak magnetic sorting mechanism which is arranged at two sides of a bottom supporting frame, the weak magnetic sorting mechanism comprises an arc-shaped slotting frame, a clamping nut, a clamping screw, an arc-shaped clamping plate, strip-shaped connecting rods, handles and a screening net rack, the arc-shaped slotting frame is fixedly arranged at two sides of the bottom supporting frame, an arc-shaped slot is arranged in the arc-shaped slotting frame, the arc-shaped slotting frame is connected with the clamping nut, the clamping nut is connected with the clamping screw in a threaded connection mode, the arc-shaped clamping plate is connected in the arc-shaped slotting frame in a sliding mode, at least one part of the arc-shaped clamping plate is arranged in the arc-shaped slot, at least one part of the clamping screw is positioned in the groove of the arc-shaped clamping plate, one side of the arc-shaped clamping plate is fixedly connected with the two strip-shaped connecting rods, the bottom supporting frame is rotatably connected with the two handles, and the two strip-shaped connecting rods jointly support the handles, the two handles are connected with a screening net rack in a common rotating way, and the screening net rack is connected with the first cell grid plate in a rotating way.
Compared with the prior art, the invention has the following advantages: through the effect of guide block, the guide block drives H type connecting rod upward movement, and H type connecting rod promotes cylinder upward movement, and the cylinder promotes a rotor plate luffing motion for here rotor plate drives all rotor plates upswing through T type connecting rod, and the rotor plate blocks the sieve net board by a large scale, makes the sieve net board filter less gravel in to the iron ore heap.
Adjusting screw and promotion wedge plate movement distance are regulated and control according to iron ore size in the iron ore heap through the staff to distance and rotor plate swing range between regulation belt pulley scraping plate and the rotating cylinder, and then can be according to the iron ore size of iron ore heap with iron ore from the rotating cylinder thoroughly scrape down, and can adjust grit screening range.
Through manual rotation chucking screw rod, the chucking screw rod no longer blocks arc chucking board, and the manual upwards pulling handle of staff, handle drive screening rack rebound after that for screening rack screening area increase, and then make that screening rack can be abundant screen iron ore.
Drawings
Fig. 1 is a schematic perspective view of a first embodiment of the present invention.
Fig. 2 is a schematic perspective view of a second embodiment of the present invention.
Fig. 3 is a schematic perspective view of the dispersing mechanism of the present invention.
Fig. 4 is a schematic perspective view of the anti-jamming screening mechanism of the present invention.
Fig. 5 is a schematic partial perspective view of the weak magnetic sorting mechanism of the present invention.
Fig. 6 is a schematic perspective view of the bottom scraping mechanism of the present invention.
Fig. 7 is a schematic perspective view of a screen plate according to the present invention.
Fig. 8 is a schematic perspective view of the guide block of the present invention.
Fig. 9 is a schematic perspective view of a part of the primary screening mechanism of the present invention.
Labeled as: 1-bottom support frame, 2-support plate, 3-rotary conveying mechanism, 31-supporting plate, 32-motor, 33-gear I, 34-rotary shaft, 35-gear II, 36-rotary drum, 37-magnet block, 4-dispersing mechanism, 41-support column, 42-first slot grid plate, 43-reset spring, 5-bottom scraping mechanism, 51-support rod, 52-adjusting nut, 53-adjusting screw rod, 54-pushing wedge plate, 55-slot support frame, 56-sliding block scraping plate, 57-stretching spring, 6-primary screening mechanism, 61-screen plate, 62-support block, 63-rotary plate, 64-T type connecting rod, 65-cylinder, 67-guide block, 68-H type connecting rod, 7-anti-blocking screening mechanism, 71-special-shaped support frame, 72-second groove grid plate, 73-transmission shaft, 74-gear III, 75-swinging rod, 8-weak magnetic sorting mechanism, 81-arc-shaped groove opening frame, 82-clamping nut, 83-clamping screw, 85-arc-shaped clamping plate, 86-strip-shaped connecting rod, 87-handle and 88-screening net rack.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained below by combining the specific drawings.
Example 1
The utility model provides a subdivide sieving mechanism to iron ore through magnetic force, as shown in fig. 1-9, including bottom sprag frame 1, backup pad 2, rotate conveying mechanism 3, dispersion mechanism 4, bottom scraping mechanism 5 and preliminary screening mechanism 6, the welding has backup pad 2 on the bottom sprag frame 1, be provided with on the bottom sprag frame 1 and rotate conveying mechanism 3, a dispersion mechanism 4 for piling the dispersion with iron ore is located bottom sprag frame 1 top surface, a bottom scraping mechanism 5 for scraping iron ore sets up in backup pad 2, 2 top surfaces in backup pad are provided with and are used for carrying out the preliminary screening mechanism 6 that filters to iron ore.
The rotary conveying mechanism 3 comprises a supporting plate 31, a motor 32, a first gear 33, a rotating shaft 34, a second gear 35, a rotating cylinder 36 and a magnet block 37, the supporting plate 31 is welded on the bottom support frame 1, the motor 32 is fixedly mounted on the supporting plate 31, the first gear 33 is fixedly connected onto an output shaft of the motor 32, the rotating shaft 34 is rotatably connected onto the bottom support frame 1, the second gear 35 is symmetrically and fixedly connected onto the rotating shaft 34, the second gear 35 and the first gear 33 are mutually matched, the rotating cylinder 36 is welded onto the rotating shaft 34, the magnet block 37 is fixedly connected onto the bottom support frame 1 close to the rotating shaft 34, the magnet block 37 is used for adsorbing iron ore onto the rotating cylinder 36, and the magnet block 37 is located in the rotating cylinder 36.
The dispersing mechanism 4 comprises support columns 41, first groove grid plates 42 and return springs 43, the support columns 41 are symmetrically and fixedly connected to the top surface of the bottom support frame 1, the two support columns 41 are matched together to play a guiding role, the first groove grid plates 42 are connected to the two support columns 41 in a sliding mode and used for fixedly connecting a pair of return springs 43 to the first groove grid plates 42 for dispersing the iron ore piles, one ends of the return springs 43 are connected with the support columns 41, and the support columns 41 penetrate through the return springs 43.
The bottom scraping mechanism 5 comprises a support rod 51, an adjusting nut 52, an adjusting screw 53, a pushing wedge plate 54, a slotted support frame 55, a belt pulley scraping plate 56 and an extension spring 57, the support rod 51 is welded on the support plate 2, the bottom end of the support rod 51 is provided with an adjusting nut 52, the adjusting nut 52 is internally connected with an adjusting screw 53 in a threaded connection mode, one end of the adjusting screw 53 is welded with a pushing wedge plate 54, two sides of the bottom support frame 1 are fixedly connected with slotted support frames 55, two slotted support frames 55 are jointly connected with two belt pulley scraping plates 56 in a sliding mode, the belt pulley scraping plates 56 are used for scraping residual iron ore on the rotating cylinder 36, the belt pulley scraping plates 56 are mutually contacted with the pushing wedge plate 54, the top surfaces of the slotted support frames 55 are fixedly connected with a pair of extension springs 57, and one ends of the extension springs 57 far away from the slotted support frames 55 are connected with the belt pulley scraping plates 56.
The preliminary screening mechanism 6 comprises a screen plate 61, supporting blocks 62, rotating plates 63, T-shaped connecting rods 64, cylinders 65, guide blocks 67 and H-shaped connecting rods 68, the screen plate 61 is arranged on the top surface of the supporting plate 2, the supporting blocks 62 are arranged on the bottom surface of the screen plate 61 in a distributed manner, the rotating plates 63 are connected to the two supporting blocks 62 on the same level in a rotating manner, the rotating plates 63 are used for blocking the screen plate 61 in a large area, strip grooves are formed in two sides of the rotating plates 63, the T-shaped connecting rods 64 are connected in a sliding manner in the strip grooves, the T-shaped connecting rods 64 are welded with the rotating plates 63, the cylinders 65 are fixedly connected to two sides of one rotating plate 63, the cylinders 65 are used for pushing one rotating plate 63 to swing upwards, the guide blocks 67 are symmetrically and fixedly connected to the pushing wedge-shaped plate 54, the H-shaped connecting rods 68 are connected to the two slotted supporting frames 55 in a sliding manner, the H-shaped connecting rods 68 close to the slotted supporting frames 55 are in spacing fit with the guide blocks 67, the column 65 is in limit fit with an H-shaped connecting rod 68 far away from the slotted support frame 55, and the H-shaped connecting rod 68 is used for pushing the column 65 to move upwards.
The other conveyor that is provided with of screen cloth 61, when the iron ore of needs in to the iron ore heap is selected separately, conveyor carries the broken iron ore heap that needs select separately to screen cloth 61 on, and screen cloth 61 screens the gravel in the iron ore heap. Then the staff manually starts motor 32, motor 32 output shaft rotates to drive gear 33 to rotate, gear 33 rotates to drive gear two 35 and the device on it rotates, rotary drum 36 rotates to drive the iron ore to rotate, the iron ore heap can pass through first cell grating 42, when the iron ore heap is too thick, the iron ore heap pushes first cell grating 42 to move upwards, when the iron ore heap is thinner, compressed reset spring 43 resets and drives first cell grating 42 to move downwards, the iron ore heap is dispersed through the effect of first cell grating 42, prevent that the iron ore heap is too thick, thereby lead to follow-up difficult sorting. The rotating cylinder 36 drives the dispersed iron ore to rotate, when the iron ore reaches the position corresponding to the magnet block 37, the iron ore is adsorbed on the rotating cylinder 36 by the magnet block 37, and the large-particle gravel in the iron ore pile can be directly ejected out of the equipment. When the rotary drum 36 drives the iron ore to rotate to the lower side, the magnet block 37 no longer adsorbs the iron ore to the rotary drum 36, and the iron ore drops to the lower side of the equipment.
Iron ore in the different iron ore piles is not of uniform size, staff need manually rotate adjusting screw 53, effect through adjusting nut 52, make adjusting screw 53 and promote wedge plate 54 reciprocating motion about, when promoting wedge plate 54 and move towards keeping away from backup pad 2 direction, promote wedge plate 54 and promote and take pulley to strike off board 56 upward movement, make and take the pulley to strike off the distance between board 56 and the rotating cylinder 36 and reduce, when rotating cylinder 36 rotates, take pulley to strike off board 56 and can scrape off remaining less iron ore on rotating cylinder 36. Promote wedge plate 54 simultaneously and drive guide block 67 towards keeping away from backup pad 2 direction motion, through the effect of guide block 67, guide block 67 drives H type connecting rod 68 upward movement, H type connecting rod 68 promotes cylinder 65 upward movement, cylinder 65 promotes a rotor plate 63 upswing, make this place rotor plate 63 drive all rotor plates 63 upswing through T type connecting rod 64, rotor plate 63 blocks screen plate 61 by a large scale, make screen plate 61 filter the interior less gravel of iron ore heap.
When the wedge-shaped plate 54 is pushed to move towards the direction close to the support plate 2, the wedge-shaped plate 54 is pushed to be separated from the belt pulley scraping plate 56, the stretched extension spring 57 resets to drive the belt pulley scraping plate 56 to move downwards, so that the distance between the belt pulley scraping plate 56 and the rotating cylinder 36 is increased, and when the rotating cylinder 36 rotates, the belt pulley scraping plate 56 can scrape the residual large iron ore on the rotating cylinder 36. Promote wedge plate 54 and drive guide block 67 towards being close to 2 direction movements of backup pad, through the effect of guide block 67, guide block 67 drives H type connecting rod 68 and the device downstream that goes up, and cylinder 65 promotes a rotor plate 63 up-swing for this place rotor plate 63 drives all rotor plates 63 downswing through T type connecting rod 64, and rotor plate 63 no longer blocks screen plate 61 by a large scale, makes screen plate 61 screen great gravel in to the iron ore heap. Make the staff can adjust and control adjusting screw 53 and promote wedge plate 54 movement distance according to iron ore size in the iron ore heap to the regulation takes pulley to strike off distance and the rotor plate 63 amplitude of oscillation between 56 and the rotor 36, and then can be according to the iron ore size of iron ore heap with iron ore from rotor 36 thoroughly, and can adjust grit screening range. After the operation is finished, the motor 32 is manually turned off to stop the operation of the equipment, and the separated iron ores are collected by the staff.
Example 2
On the basis of the embodiment 1, as shown in fig. 4, the iron ore blocking prevention screening device further comprises an anti-blocking screening mechanism 7, wherein the anti-blocking screening mechanism 7 is used for preventing large iron ores from being blocked, the anti-blocking screening mechanism 7 is arranged on the top surface of the bottom support frame 1, the anti-blocking screening mechanism 7 comprises a special-shaped support frame 71 and a second cell plate 72, the transmission shaft 73, three gears 74 and swinging arms 75, the symmetrical fixed mounting of dysmorphism support frame 71 is at the 1 top surface of bottom sprag frame that is close to support column 41, the common rotary type is connected with second groove check board 72 on the dysmorphism support frame 71, second groove check board 72 is used for breaking up the great iron ore in the iron ore heap, the last rotation type of dysmorphism support frame 71 is connected with transmission shaft 73, the welding has three gears 74 on the transmission shaft 73, three gears 74 and two gears 35 agree with each other, swinging arms 75 rotary type is connected in three gears 74 one side, the swinging arms 75 who keeps away from three gears 74 is connected with second groove check board 72 rotary type.
The second gear 35 rotates and can drive the third gear 74 to rotate, the third gear 74 drives the second groove grid plate 72 to swing left and right in a reciprocating mode through the swinging rod 75, the rotating cylinder 36 rotates and drives iron ore to rotate, and when iron ore piles pass through the second groove grid plate 72, the second groove grid plate 72 swings left and right in a reciprocating mode to break up large iron ore in the iron ore piles, and therefore large iron ore is prevented from being clamped on the second groove grid plate 72.
Example 3
On the basis of embodiment 2, as shown in fig. 5, the weak magnetic separation device further comprises a weak magnetic separation mechanism 8, the weak magnetic separation mechanism 8 is arranged on two sides of the bottom support frame 1, the weak magnetic separation mechanism 8 is used for screening weak magnetic iron ores, the weak magnetic separation mechanism 8 comprises an arc-shaped slotted frame 81, a clamping nut 82, a clamping screw 83, an arc-shaped clamping plate 85, a strip-shaped connecting rod 86, a handle 87 and a screening net rack 88, the arc-shaped slotted frame 81 is fixedly arranged on two sides of the bottom support frame 1, an arc-shaped slot is arranged in the arc-shaped slotted frame 81, the clamping nut 82 is connected to the clamping screw 83 in a threaded connection manner, the clamping screw 83 is used for clamping the arc-shaped clamping plate 85, the arc-shaped clamping plate 85 is connected to the arc-shaped slotted frame 81 in a sliding manner, at least a part of the arc-shaped clamping plate 85 is arranged in the arc-shaped slot, at least a part of the clamping screw 83 is arranged in the groove of the arc-shaped clamping plate 85, arc chucking plate 85 one side fixed coupling has two bar connecting rods 86, and the rotation type is connected with two handle 87 that are convenient for manual pulling on bottom sprag frame 1, and two bar connecting rods 86 of keeping away from arc chucking plate 85 play the supporting role to handle 87 jointly, and the common rotary type is connected with the screening rack 88 that is used for carrying out the screening to the weak magnetic iron ore on two handle 87, and screening rack 88 and first groove grid 42 rotary type hookup.
When magnet piece 37 is sorting iron ore, the less iron ore of iron content can not be adsorbed by magnet piece 37 completely, and the iron ore that is not adsorbed by completely on the rotary drum 36 can drop to screening rack 88 on, and screening rack 88 screens it, and the iron ore of weak magnetism can drop to screening rack 88 below. Contain when containing more weak magnetism iron ore when iron ore piles, staff's manual rotation chucking screw 83, chucking screw 83 no longer blocks arc chucking plate 85, the manual upwards pulling handle 87 of staff, handle 87 drives screening rack 88 luffing motion, make screening rack 88 screening area increase, and then make that screening rack 88 can be abundant screen iron ore, handle 87 drives arc chucking plate 85 swing through bar connecting rod 86, at last the chucking screw 83 rotates again, block chucking screw 83 once more in arc chucking plate 85 recess, take place the skew when preventing screening rack 88 from screening iron ore.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (3)

1. The utility model provides a through magnetic force to iron ore subdivision sieving mechanism which characterized in that: the automatic scraping machine comprises a bottom supporting frame (1), a supporting plate (2), a rotary conveying mechanism (3), a dispersing mechanism (4), a bottom scraping mechanism (5) and a preliminary screening mechanism (6), wherein the supporting plate (2) is welded on the bottom supporting frame (1), the rotary conveying mechanism (3) is arranged on the bottom supporting frame (1), the dispersing mechanism (4) is positioned on the top surface of the bottom supporting frame (1), the bottom scraping mechanism (5) is arranged on the supporting plate (2), and the preliminary screening mechanism (6) is arranged on the top surface of the supporting plate (2);
the rotary conveying mechanism (3) comprises a supporting plate (31), a motor (32), a first gear (33), a rotary shaft (34), a second gear (35), a rotary cylinder (36) and a magnet block (37), the supporting plate (31) is welded on the bottom supporting frame (1), the motor (32) is fixedly installed on the supporting plate (31), the first gear (33) is fixedly connected to an output shaft of the motor (32), the rotary shaft (34) is rotatably connected to the bottom supporting frame (1), the second gear (35) is symmetrically and fixedly connected to the rotary shaft (34), the second gear (35) and the first gear (33) are mutually matched, the rotary cylinder (36) is welded on the rotary shaft (34), the magnet block (37) is fixedly connected to the bottom supporting frame (1), and the magnet block (37) is located in the rotary cylinder (36);
the dispersing mechanism (4) comprises support columns (41), a first cell plate (42) and a return spring (43), the support columns (41) are symmetrically and fixedly connected to the top surface of the bottom support frame (1), the two support columns (41) are matched together to play a guiding role, the first cell plate (42) is connected to the two support columns (41) in a sliding mode, the first cell plate (42) is fixedly connected with a pair of return springs (43), one end of each return spring (43) is connected with the support column (41), and the support column (41) penetrates through the return springs (43);
the bottom scraping mechanism (5) comprises a support rod (51), an adjusting nut (52), an adjusting screw (53), a pushing wedge-shaped plate (54), a slotting support frame (55), a scraping plate with a pulley (56) and an extension spring (57), the support rod (51) is welded on the support plate (2), an adjusting nut (52) is arranged at the bottom end of the support rod (51), an adjusting screw (53) is connected in the adjusting nut (52) in a threaded connection mode, a pushing wedge plate (54) is welded at one end of the adjusting screw (53), slotted support frames (55) are fixedly connected to two sides in the bottom support frame (1), two belt pulley scraping plates (56) are jointly connected to the two slotted support frames (55) in a sliding mode, the belt pulley scraping plates (56) are in contact with the pushing wedge plate (54), a pair of tension springs (57) are fixedly connected to the top surfaces of the slotted support frames (55), and one ends of the tension springs (57) are connected with the belt pulley scraping plates (56);
the primary screening mechanism (6) comprises a screen plate (61), supporting blocks (62), rotating plates (63), T-shaped connecting rods (64), cylinders (65), guide blocks (67) and H-shaped connecting rods (68), the screen plate (61) is arranged on the top surface of the supporting plate (2), the supporting blocks (62) are arranged on the bottom surface of the screen plate (61) in a distributed mode, the rotating plates (63) are connected to two supporting blocks (62) on the same level in a rotating mode, strip-shaped grooves are formed in two sides of each rotating plate (63), the T-shaped connecting rods (64) are connected to the strip-shaped grooves in a sliding mode, the T-shaped connecting rods (64) are welded to the rotating plates (63), the cylinders (65) are fixedly connected to two sides of each rotating plate (63), the guide blocks (67) are symmetrically and fixedly connected to the pushing wedge-shaped plates (54), the H-shaped connecting rods (68) are connected to the two grooved supporting frames (55) in a sliding mode, the H-shaped connecting rod (68) is in limit fit with the guide block (67), and the cylinder (65) is also in limit fit with the H-shaped connecting rod (68).
2. A magnetic iron ore fine-dividing screening apparatus according to claim 1, characterized in that: still including anti-sticking screening mechanism (7), bottom sprag frame (1) top surface is located in anti-sticking screening mechanism (7), anti-sticking screening mechanism (7) is including special-shaped support frame (71), second cell board (72), transmission shaft (73), three (74) of gear and swinging arms (75), special-shaped support frame (71) symmetry fixed mounting is at bottom sprag frame (1) top surface, common rotary type is connected with second cell board (72) on special-shaped support frame (71), the rotary type is connected with transmission shaft (73) on special-shaped support frame (71), the welding has three (74) of gear on transmission shaft (73), three (74) of gear agree with each other with two (35) of gear, swinging arms (75) rotary type is connected in three (74) one side of gear, swinging arms (75) are connected with second cell board (72) rotary type.
3. A magnetic iron ore fine-dividing screening apparatus according to claim 2, characterized in that: the low-intensity magnetic separation device is characterized by further comprising a low-intensity magnetic separation mechanism (8), the low-intensity magnetic separation mechanism (8) is arranged on two sides of the bottom support frame (1), the low-intensity magnetic separation mechanism (8) comprises an arc-shaped slotting frame (81), clamping nuts (82), clamping screw rods (83), arc-shaped clamping plates (85), strip-shaped connecting rods (86), a handle (87) and a screening net rack (88), the arc-shaped slotting frame (81) is fixedly arranged on two sides of the bottom support frame (1), arc-shaped grooves are formed in the arc-shaped slotting frame (81), the clamping nuts (82) are connected to the arc-shaped slotting frame (81), the clamping screws (83) are connected to the clamping nuts (82) in a threaded connection mode, the arc-shaped slotting frame (81) is internally and slidably connected with the arc-shaped clamping plates (85), at least one part of the arc-shaped clamping plates (85) is arranged in the arc-shaped grooves, at least one part of the clamping screws (83) is positioned in the arc-shaped clamping plates (85), arc chucking plate (85) one side is fixed to be connected with two bar connecting rods (86), and the rotation type is connected with two handle (87) on bottom sprag frame (1), and two bar connecting rods (86) play the supporting role to handle (87) jointly, and common rotary type is connected with screening rack (88) on two handle (87), and screening rack (88) and first cell lattice board (42) rotary type hookup.
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