CN2715867Y

CN2715867Y - Mica concentrating machine

Info

Publication number: CN2715867Y
Application number: CN 200420017689
Authority: CN
Inventors: 高惠民; 朱瀛波; 张凌燕; 王国志; 管俊芳
Original assignee: Wuhan University of Technology WUT
Current assignee: Wuhan University of Technology WUT
Priority date: 2004-04-08
Filing date: 2004-04-08
Publication date: 2005-08-10
Anticipated expiration: 2014-04-08

Abstract

The utility model relates to a mica concentrating machine, comprising a two-layer screen mesh. The first layer of the screen mesh is a bar-shaped screen mesh (1); the second layer is a hole-shaped screen mesh (2). The working principle of the utility model is that at first the first bar-shaped screen mesh separates mica from large granule gangue and then the second hole-shaped layer screen mesh separates mica from granule gangue to achieve the separation of mica and gangue. The screen seam and the screen mesh of the utility model are not easy to block, and thus the utility model has high separating effect and great production capability.

Description

A kind of mica ore dressing sieve

Technical field

The utility model relates to the MICA equipment for purifying, particularly mica ore dressing sieve.

Background technology

One of main method that the mica ore dressing is purified is to adopt shape separation, and its principle is different with the shape of gangue according to mica crystal, sees through the ability difference of the sieve seam of sieve in screening, and mica is separated with gangue.Because this technology has advantages such as flow process is simple, equipment is few, production efficiency is high, good separation effect, thereby is used widely in the mica mine ore dressing.

At present, the capital equipment of mica shape separation is a vibratory sieve, and its compass screen surface structure is shown in Fig. 8,9, compass screen surface is made up of stock guide 14 and grating, and stock guide 14 adopts steel plate to make, and grating is an angle steel 13, utilize stock guide 14 that mica sheet is erected and see through microscler sieve seam 4, reach the purpose of separating with gangue.But when the sieve screening of this structure, owing to be clipped in easily between the stock guide 14 greater than the gangue of sieve seam, the lighter influences mica sheet by sieve seam 4, stops up sieve seam 4 when serious, and mica sheet can't be passed through, and has reduced sorting result and production capacity.In addition, this structural vibration sieve is the plane compass screen surface, stock guide 14 gap width b can not be too little, generally require 2b＞Dmax (maximum mica sheet diameter), otherwise mica can move on stock guide, become oversize and enter mine tailing, therefore, stock guide 14 gap width b are far longer than sieve seam 4 width d, and sieve seam area is little, and screening production capacity is low.

Summary of the invention

Technical problem to be solved in the utility model is: provide a kind of sorting result to reach the big mica ore dressing sieve of production capacity well.

The utility model solves the problems of the technologies described above the technical scheme that is adopted: it comprises screen cloth, and screen cloth is two-layer, presses MICA screening order, and the ground floor screen cloth is the bar shaped screen cloth, and second layer screen cloth is the hole shape screen cloth.

Because the shape difference of mica crystal and gangue, be that mica crystal is a laminated structure and gangue mostly is nutty structure, both motion mode differences on screen cloth, the utility model improves mesh structure, adopt the double deck screen web frame, be that the ground floor screen cloth is the bar shaped screen cloth, second layer screen cloth is the hole shape screen cloth.

Operation principle of the present utility model is: the ground floor bar shaped screen hole separates mica earlier with the bulky grain gangue, with the second layer hole shape screen cloth mica is separated with the granule gangue, to reach the purpose that mica separates with gangue again.The utility model sieve seam, sieve aperture are difficult for stopping up, and therefore, it is big that the utility model sorting result reaches production capacity well.

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment 1

Fig. 2 is the structural representation of the utility model embodiment 1 inner screen

Fig. 3 is the structural representation of round steel Grating bar shaped screen cloth

Fig. 4 is the A-A cutaway view of Fig. 3

Fig. 5 is the cutaway view of vane type bar shaped screen cloth

Fig. 6 is the structural representation of the special-shaped Grating bar shaped screen cloth of the utility model embodiment 2

Fig. 7 is the B-B cutaway view of Fig. 6

Fig. 8 is the structural representation of existing bar shaped screen cloth

Fig. 9 is the C-C cutaway view of Fig. 8

The specific embodiment

The utility model embodiment 1 as shown in Figure 1, 2, this ore dressing sieve is three grades of classification ore dressing sieves, it is made up of three tubular screen clothes, each tubular screen cloth is two-layer, ground floor screen cloth (being internal layer) is a bar shaped screen cloth 1, second layer screen cloth (promptly outer) is that the internal layer bar shaped screen cloth 1 of 2, three tubular screen clothes of hole shape screen cloth is communicated with series connection.One end of three grades of classification ore dressings sieve is provided with a feed hopper 9 that is used for to internal layer bar shaped screen cloth 1 feed, and the other end is provided with a hopper 10 that is used to collect the oversize of internal layer bar shaped screen cloth 1.Every grade of tubular screen cloth is provided with the hopper 11 that the hopper 12 of an oversize that is used to collect the outer hole shape screen cloth 2 of this grade and are used to collect the screenings of the outer hole shape screen cloth 2 of this grade.

In the tubular screen clothes at different levels of the utility model embodiment 1, it is identical with the aperture size in the hole 3 of hole shape screen cloth 2 that the sieve of bar shaped screen cloth 1 stitches 4 width.Screen clothes at different levels are pressed the moving direction of oversize on screen cloth of internal layer bar shaped screen cloth 1, and the sieve of bar shaped screen cloth 1 stitches the aperture size in the hole 3 of 4 width and hole shape screen cloth 2 and amplifies step by step.

Above-mentioned bar shaped screen cloth 1 can be round steel Grating bar shaped screen cloth, and shown in Fig. 3,4, round steel Grating bar shaped screen cloth is arranged in parallel by round steel 5 and forms, and is between adjacent two round steel 5 to be distributed with guiding round steel 6 in the bar shaped screen cloth 1 by sieve seam 4.This round steel Grating bar shaped screen cloth, material can move along both direction, has reduced material and has stopped up the chance that sieve stitches, and can prevent that mica sheet is in round steel 5 lower edge compass screen surfaces motions.In the bar shaped screen cloth 1, every several bar grizzl(e)ies seams 4 of being separated by, also be provided with stock guide 14, stock guide 14 is provided with perpendicular to bar shaped screen cloth 1.

Above-mentioned bar shaped screen cloth 1 also can be vane type bar shaped screen cloth, and as shown in Figure 5, its grating is a steel plate 7, and steel plate 7 is impeller and distributes, and is sieve seam 4 between adjacent two steel plates 7.The operation principle of vane type bar shaped screen cloth is: when vane type bar shaped screen cloth counterclockwise rotated, mica was that laminated structure is slided on compass screen surface, and gangue is that perfectly round shape is rolled on compass screen surface; Sieve seam 4 occurring as the lower right corner of Fig. 5 screen cloth profile perpendicular to ground, mica can see through sieve seam 4 and enter outer screen under the gravity effect, and it is easy to wear that this structure can overcome in the round steel Grating bar shaped screen cloth round steel and stock guide, needs the shortcoming of often changing.

The operation principle of the utility model embodiment 1 is: raw material enters the internal layer bar shaped screen cloth 1 of first order screen cloth through feed hopper 9, little thickness mica and granule gangue enter the outer hole shape screen cloth 2 of the first order, the outer hole shape screen cloth 2 of the first order separates mica with the granule gangue, the granule gangue is made mine tailing through the hopper 11 of the outer hole shape screen cloth 2 of this grade and discharged; The oversize of the outer hole shape screen cloth 2 of this grade is that this grade mica that filters out enters this grade hopper 12.Big thickness mica and bulky grain gangue enter the internal layer bar shaped screen cloth 1 of second and third grade screen cloth successively, in like manner screen, and last bulky grain gangue is discharged from hopper 10.

The utility model embodiment 1 original horizontal screen material has bigger and more tumbling motion, has increased the chance of mica by microscler sieve seam.Change the width of sieve seam and the size of sieve aperture simultaneously vertically step by step, realize that once screening produces multi-level product, make ore dressing classification process simplification.

The utility model embodiment 2, this ore dressing sieve adopts the plane inclined screen cloth, and screen cloth is two-layer, and ground floor (being the upper strata) screen cloth is the bar shaped screen cloth, and second layer screen cloth (being lower floor) is the hole shape screen cloth.The structure of bar shaped screen cloth is shown in Fig. 6,7, and bar shaped screen cloth 1 is special-shaped Grating bar shaped screen cloth, and its grating is a deformed steel flats 8, and bar shaped screen cloth 1 is arranged in parallel by deformed steel flats 8 and forms, and is sieve seam 4 between two deformed steel flats 8.It is identical with the aperture size in the hole 3 of hole shape screen cloth 2 that the sieve of bar shaped screen cloth 1 stitches 4 width.

During work, through 1 screening of upper strata bar shaped screen cloth, mica and granule gangue enter lower floor's hole shape screen cloth 2 to raw material earlier, and lower floor's hole shape screen cloth 2 separates mica with gangue, and gangue sifts out through lower floor's hole shape screen cloth 2; The oversize of lower floor's hole shape screen cloth 2 is the mica that filters out.

The hole 3 of the hole shape screen cloth 2 of the utility model embodiment can be circular hole, also can be square hole.

Claims

1, a kind of mica ore dressing sieve, it comprises screen cloth, it is characterized in that: screen cloth is two-layer, and the ground floor screen cloth is bar shaped screen cloth (1), and second layer screen cloth is hole shape screen cloth (2).

2, mica ore dressing sieve as claimed in claim 1, it is characterized in that: screen cloth is the tubular screen cloth, and bar shaped screen cloth (1) is arranged on internal layer, and hole shape screen cloth (2) is arranged on skin.

3, mica ore dressing sieve as claimed in claim 1, it is characterized in that: screen cloth is a flat-surfaced screen, and bar shaped screen cloth (1) is arranged on the upper strata, and hole shape screen cloth (2) is arranged on lower floor.

4, as claim 1 or 2 or 3 described mica ore dressing sieves, it is characterized in that: sieve seam (4) width of bar shaped screen cloth (1) is identical with the aperture in the hole (3) of hole shape screen cloth (2).

5, mica ore dressing as claimed in claim 2 sieve is characterized in that: it also comprises the feed hopper (9) that is used for to internal layer bar shaped screen cloth (1) feed, be used to collect the oversize of internal layer bar shaped screen cloth (1) hopper (10), be used to collect the oversize of outer hole shape screen cloth (2) hopper (12), be used to collect the hopper (11) of the screenings of outer hole shape screen cloth (2).

6, as claim 1 or 2 or 3 described mica ore dressing sieves, it is characterized in that: bar shaped screen cloth (1) is arranged in parallel by round steel (5) and forms.

7, mica ore dressing sieve as claimed in claim 6 is characterized in that: be distributed with guiding round steel (6) in the bar shaped screen cloth (1).

8, mica ore dressing sieve as claimed in claim 2 is characterized in that: bar shaped screen cloth (1) is distributed by steel plate (7) impeller shape and forms.

9, mica ore dressing sieve as claimed in claim 3, it is characterized in that: bar shaped screen cloth (1) is arranged in parallel by deformed steel flats (8) and forms.

10, mica ore dressing sieve as claimed in claim 5 is characterized in that: it is classification ore dressing sieve, and the internal layer bar shaped screen cloth (1) of its tubular screen cloth is communicated with series connection; Screen cloth is pressed the moving direction of oversize on screen cloth of internal layer bar shaped screen cloth (1), and amplify step by step in the aperture in sieve seam (4) width of bar shaped screen cloth (1) and the hole (3) of hole shape screen cloth (2); Feed hopper (9) is arranged on an end of classification ore dressing sieve, and the hopper (10) that is used to collect the oversize of internal layer bar shaped screen cloth (1) is arranged on the other end of classification ore dressing sieve; Every grade of tubular screen cloth is provided with the hopper (11) that the hopper (12) of an oversize that is used to collect the outer hole shape screen cloth of this grade (2) and are used to collect the screenings of the outer hole shape screen cloth of this grade (2).