CN2423957Y

CN2423957Y - Disk band type magnetic separator

Info

Publication number: CN2423957Y
Application number: CN 00208656
Authority: CN
Inventors: 莫天云
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-04-29
Filing date: 2000-04-29
Publication date: 2001-03-21
Anticipated expiration: 2010-04-29

Abstract

The utility model provides a disk band type magnetic separator, which is mainly composed of a material inlet and outlet device, a deceleration driving mechanism, a permanent magnetism cylinder and an electromagnetic strong magnetic separation part. The utility model is characterized in that the disk band type magnetic separator is provided with more than seven magnetic field regions, a rotating disk parallel lift adjusting mechanism and an automatic current stabilizer, so the utility model solves the problems of poor stability, difficult adjustment, no comprehensive ore separation ability to a plurality of mixing ores in the prior art. The utility model has the advantages of stable operation, easy adjustment, no affection by external environment, good separation performance, low cost, high performance-price ratio, etc., and the utility model is suitable for separating comprehensive ores.

Description

Dribbling formula magnetic separator

The utility model belongs to the magnetic ore separators, a kind of dribbling formula magnetic separator of more specifically saying so.

The magnetic ore dressing, be by magnetic separating apparatus will present by force, in, the mineral matter of weak magnetic separates, and sorts out different mineral and grade content.With regard to magnetic separating apparatus, its excitation mode can be divided into two kinds of electromagnetic type and magnetos.The former can gather very big electric energy and produce very high-intensity magnetic field in the limited little zone, and working stability is reliable, but volume is big, big energy-consuming; The latter adopts permanent magnet to gather magnetic, can make that machine volume reduces, energy savings, but be difficult to accomplish sufficiently high magnetic field intensity, and permanent magnet is subjected to the influence (displacement deformation, the outer magnetic disturbance that produces as variations in temperature, vibration, stress even occur demagnetization as time passes) of objective environment easily, poor stability, in addition, the permanent magnet material of high energy product, high-coercive force cost an arm and a leg, the cost height.So both each have pluses and minuses.At present, sorting aspect the weak magnetic mineral, making still dry type electromagnetic disc type magnetic separator with the most use.Existing electromagnetic disc magnetic separator is owing to provide the circuit of electric current not establish constant-current stabilizer to solenoid, add that electromagnetic disc can not parallel lifting, the working gas gap of magnetic circuit is adjusted difficulty, the DISTRIBUTION OF MAGNETIC FIELD characteristic is degenerated, thereby relative stability is poor, it is up to standard to influence the ore dressing grade, and magnetic journey workspace progression is few, does not possess the ore dressing ability to comprehensive mineral.

The purpose of this utility model just provides a kind of dribbling formula magnetic separator of good operating stability, the comprehensive ore dressing ability when it has the mixed life of multi mineral.

In order to achieve the above object, the utility model has been taked following technical scheme: this magnetic separator comprises feed hopper and the feeding trough that is assembled on the frame, permanent magnetic pulley, the mineral aggregate conveyer belt, reduction gearing mechanism, mineral classification discharge bucket and power supply, frame is a cuboid, be installed into hopper from top to bottom at a main end of looking, feeding trough, the initiating terminal of permanent magnetic pulley and mineral aggregate conveyer belt, the outside, permanent magnetic pulley below is established a strongly magnetic mineral discharge bucket slope sample and is stretched out outside the frame, it is characterized in that, it also comprises: inboard below described permanent magnetic pulley, be equipped with successively along the horizontal direction of frame and arrange from low to high by magnetic field intensity, be no less than 4 cored solenoids and 3 rotating disks, the other end to frame extends, the rotating disk both sides all are equipped with the mineral discharge bucket by weak magnetic grade separation, all be serially connected with flow straightener between each solenoid and the power supply, iron core and rotating disk relative installation at interval, one end shape of iron core working face is as two parantheses that one side of something is opposing) (shape leading pole, the other end fuses, the leading pole of adjacent two iron cores then constitutes parantheses () shape and rotating disk concentric circles, rotating disk is driven by the vertical shaft in the vertical shaft tube that parallel lift adjustment device is housed, dish mouthful periphery is provided with that the arcuation leading pole of profile of tooth leading pole and iron core working face is relative to constitute the semi-closed magnetic circuit, described mineral aggregate conveyer belt passes through from the air-gap field of magnetic circuit from start to finish, and end also is provided with a mine tailing discharge bucket slope sample down and stretches out outside the frame.

Rotating disk profile of tooth leading pole crown partly is a ferrocobalt, can adjust arbitrarily in the scope of 3～20mm with the distance of iron core working face arcuation leading pole relative gap.

The utility model has the advantages that: 1, magnetic field is strong, distribution character good, the electromagnetism rotating disk can parallel lifting, the working gas gap adjustment of magnetic circuit easily, power supply promptly sets up magnetic field, precise control, is not affected by the external environment, is not subjected to restriction service life, working stability is reliable.2, it is fine that disposal ability by force, is particularly separated the weak magnetic mineral effect.3, have comprehensive ore dressing ability, when multi mineral is mixed life, can once sort seven above mineral.4, cost is low, cost performance is high.

Fig. 1 is the unitary construction front view of this magnetic separator.

Fig. 2 is the vertical view of turnover hopper installation site among Fig. 1.

Fig. 3 is the schematic diagram of transmission mechanism among Fig. 1.

Fig. 4 is the schematic diagram of electromagnet magnetic structure among Fig. 1.

Fig. 5 is that flow straightener is serially connected in the circuit diagram between solenoid and the power supply.

Below in conjunction with accompanying drawing the utility model is done to describe in further detail.

Fig. 1 is the unitary construction front view of this magnetic separator.Mainly constitute, all be assembled on the cuboid frame 1 by charging and discharging device, transmission mechanism, the parallel lift adjustment device of magnetic ore-dressing plant with rotating disk.The formation of following division each several part and correlation:

1, charging/discharging device is made up of feed hopper 14, inlet amount gauge tap 15, feeding trough 13, mineral aggregate conveyer belt 12, discharge bucket A1～A8.The inlet amount gauge tap is used to regulate suitable feeding capacity; Feeding trough has two, establishes one on permanent magnetic pulley 16, establishes one below; The mineral aggregate used for conveyer belt passes through from magnetic devices in the carrying mineral aggregate; Discharge bucket one has 8, and its distributing position is referring to Fig. 2.

2, transmission mechanism (referring to Fig. 3) divides two parts: a part is made up of motor 2 → drive 4 → driving-belt 17 → drive 18 power transmission shafts 5 → drive 19 → driving-belt 7 → drive 8 → bevel gear case 9 → vertical shaft 10, drives electromagnetism rotating disk Y; Another part is made up of motor 2 → drive 3 → driving-belt 20 → drive 21 → bevel gear case 22 → gear shaft 23 → drive 24 → driving-belt 25 → delivery wheel 26 → mineral aggregate conveyer belt 12 → drive 27 → driving-belt 28 → drive 29, drives permanent magnetic pulley 16.

3, the magnetic ore-dressing plant divides primary election and selected two parts.Primary election is magnetic stronger mineral such as iron oxide ore, at first from mineral aggregate, separate, because it does not need very strong magnetic force just can accomplish, this task is finished by permanent magnetic pulley 16, the cylindrical shell of cylinder is that non-magnet material is made, install permanent magnet 30 in simplified, set up workspace, a magnetic field, be Open architecture, during simplified rotation, permanent magnet is motionless, and when mineral aggregate passed through field regions, strongly magnetic mineral was attracted to cylinder surface, all the other mineral aggregates then are slipped to the mineral aggregate conveyer belt through feeding trough 13 and send forward, when cylinder produces the workspace, magnetic field, the strongly magnetic mineral that is attracted to cylinder surface drops into discharge bucket A1 and skids off along with the disappearance of magnetic force breaks away from cylinder, and the epistasis mineral just have been separated.Therefore selected is to sort out presenting more weak mineral of magnetic such as titanium, tungsten, tantalum, niobium, tin silicon etc., and different mineral present weak magnetic in various degree, need set up a plurality of very strong magnetic fields, the workspace that intensity does not wait could solve.In order to obtain enough strong magnetic force, selected part is taked electromagnetic mode, and magnetic structure is semiclossed (referring to Fig. 4), and a is that the master looks, b overlooks among the figure, is made up of solenoid L1～L4, iron core 31, electromagnetism rotating disk Y1～Y3.Solenoid is sleeved on the iron core column, good insulation performance is arranged mutually, the iron core lower end fuses, the upper end is a working face, be fixed with two shapes as two parantheses sample leading poles 32 that one side of something is opposing, the leading pole of adjacent two iron cores then constitutes the parantheses shape, rotating disk is driven by vertical shaft 10, relative staggered installation of working face with iron core, a dish mouthful periphery is provided with profile of tooth leading pole 33 on the arc leading pole of adjacent two iron cores, the built-up welding of crown part has ferrocobalt, the fine finishining moulding, and arc leading pole and profile of tooth magnetic conduction be concentric circles very, crown is relative with the arc leading pole to constitute the semi-closed magnetic circuit, air gap is left in the centre, and the mineral aggregate conveyer belt can pass through from air gap, as seen from the figure, the magnetic journey is that in-line is arranged, the workspace, magnetic field is provided with six, from left to right is S, N, N, S, S, N, magnetic field intensity is by 0～16000GS, 0～18000GS, 0～19000GS arranges from low to high.When magnetic field is set up in solenoid L1～L4 energising, when rotating disk Y1～Y3 rotates under vertical shaft drives, the mineral aggregate conveyer belt will be sent constantly into the workspace, magnetic field through the mineral aggregate after the primary election, the weak magnetic mineral of mix giving birth to by present magnetic from strong to workspace, the magnetic field sorting step by step from weak to strong of weak quilt, the mineral of respective magnetic are lifted up by the profile of tooth leading pole of workspace, corresponding magnetic field, be adsorbed on the surface, when rotating disk produces the workspace with the profile of tooth leading pole, along with the disappearance of magnetic force is just fallen and is being located at the corresponding discharge bucket landing output of rotating disk both sides, like this, the mixed mineral of giving birth to of weak magnetic just have been separated.What present embodiment provided is the magnetic structure of seven kinds of mineral of sorting, if contain mine tailing (non magnetic mineral) eight kinds is just arranged.Certainly, also can increase workspace, more magnetic field, like this, just can simultaneously disposablely select more mineral on both sides, workspace, existing six magnetic field according to comprehensive ore dressing needs.

4, the parallel lift adjustment device of rotating disk.Magnetic separator in use in order to adapt to the ore dressing requirement of different mineral, needs often to adjust the distance of magnetic circuit working clearance, to satisfy the magnetic field intensity requirement of setting.Because the profile of tooth leading pole of rotating disk is on two pairs of magnetic poles, must move up and down the same distance distance simultaneously during adjustment, can not have tilt phenomenon existing, it is so-called parallel lifting, if inconsistent, will influence the ore dressing quality, therefore designed the parallel adjuster of rotating disk.It is actually the adjusting nut that has ball 11 that is installed on the vertical shaft frame 6, and with the threads engaged on the vertical shaft tube, turn nut, the vertical shaft tube just drives vertical shaft and rotating disk makes profile of tooth leading pole integral elevating simultaneously.The relative spacing of profile of tooth leading pole and arcuation leading pole can be adjusted arbitrarily between 3～20mm.

Fig. 5 is that flow straightener is serially connected in the circuit diagram between solenoid and the power supply.The job stability of electromagnetic type ore separators depends primarily on the circle/amperage of solenoid will be stablized, the magnetic force instability, and mineral processing index is corresponding also unstable.After the number of turn of coil is set, influence stable factor and is exactly electric current by coil, the internal resistance variation that coil is heated, the fluctuation of supply voltage etc. all can cause the variation of electric current, so have set up flow straightener between solenoid and power supply.Identical flow straightener one has 4, is connected on respectively between L1～L4 and the power supply, in order to simplify circuit, only provides one, and all the other are omitted.Among the figure, left side binding post is the leading-in end of AC power, and S is a power switch, and Fu is the fusing protective tube, and UR is a full wave bridge rectifier, and A is a DC ammeter; The right L is a solenoid; Flow straightener is made up of sample resistance R, three polar crystal thyratron VS, trigger D, R and VS are connected in the power circuit, when the electric current in the circuit changes, the electric current that flows through R also changes, send into the i end from the sample signal that R obtains, export the angle of flow that the control utmost point G that sends into VS removes to adjust VS from 0 end then, the electric current in the circuit is remained unchanged.

Claims

1, a kind of dribbling formula magnetic separator, comprise the feed hopper and the feeding trough that are assembled on the frame, permanent magnetic pulley, the mineral aggregate conveyer belt, reduction gearing mechanism, mineral classification discharge bucket and power supply, frame is a cuboid, be installed into hopper from top to bottom at a main end of looking, feeding trough, the initiating terminal of permanent magnetic pulley and mineral aggregate conveyer belt, the outside, permanent magnetic pulley below is established a strongly magnetic mineral discharge bucket slope sample and is stretched out outside the frame, it is characterized in that, it also comprises: in below described permanent magnetic pulley then, be equipped with successively along the horizontal direction of frame and arrange from low to high by magnetic field intensity, be no less than 4 cored solenoids and 3 rotating disks, the other end to frame extends, the rotating disk both sides all are equipped with the mineral discharge bucket by weak magnetic grade separation, all be serially connected with flow straightener between each solenoid and the power supply, iron core and rotating disk relative installation at interval, one end shape of iron core working face is as two parantheses that one side of something is opposing) (shape leading pole, the other end fuses, the leading pole of adjacent two iron cores then constitutes bracket and rotating disk concentric circles, rotating disk is driven by the vertical shaft in the vertical shaft tube that parallel lift adjustment device is housed, dish mouthful periphery is provided with that the arcuation leading pole of profile of tooth leading pole and iron core working face is relative to constitute the semi-closed magnetic circuit, described mineral aggregate conveyer belt passes through from the air-gap field of magnetic circuit from start to finish, and end also is provided with a mine tailing discharge bucket slope sample down and stretches out outside the frame.

2, dribbling formula magnetic separator according to claim 1 is characterized in that: the crown of rotating disk profile of tooth leading pole is partly for ferrocobalt, can adjust arbitrarily in the scope of 3～20mm with the distance of the arcuation leading pole relative gap of iron core working face.