CN202387593U

CN202387593U - Swirler for grinding ore classification

Info

Publication number: CN202387593U
Application number: CN2011204651643U
Authority: CN
Inventors: 原希刚; 王吉英; 周燕祥
Original assignee: SHANDONG SHENGDA MINING CO Ltd
Current assignee: SHANDONG SHENGDA MINING CO Ltd
Priority date: 2011-11-21
Filing date: 2011-11-21
Publication date: 2012-08-22
Anticipated expiration: 2021-11-21

Abstract

A swirler for grinding ore classification belongs to beneficiation machinery and comprises a swirler body, a feeding pipe, an overflow pipe and a sand setting nozzle, wherein the swirler body comprises a cylinder part and a cone part which is larger at the upper part and smaller at the lower part, the overflow pipe is detachably connected with the cylinder part, the cone part is detachably connected with the bottom of the cylinder part, the bottom of the overflow pipe is inserted into the cylinder part, the sand setting nozzle is detachably connected to the bottom of the cone part, the feeding pipe is fixed on the cylinder part and in a position close to the top of the cylinder part, the feeding pipe is communicated with the cylinder part, and each of the cylinder part, the cone part and the sand setting nozzle comprises a wear-resistant material layer on the inner side and a skeleton layer on the outer side. In products obtained in the swirler for grinding ore classification, provided by the utility model, materials smaller than 0.053 mm accounts for more than 85 percent, and the classification efficiency is higher.

Description

Grind grading is used cyclone

Technical field

The utility model relates to a kind of benficiation machinery, relates to a kind of ore dressing specifically and uses cyclone.

Background technology

Pulverize in the ore dressing process at iron ore; Usually adopt the high frequency sieve that iron ore powder is carried out classification, because of production needs, in three sections ore grinding crushing process; Granularity need account for more than 85% less than the material of 0.053mm in the material that final sizing obtains; Adopt the high frequency sieve to carry out classification if will reach such fineness, screen size will be selected about 0.063mm, but this dusting cover hangs down very much because of screening efficiency and in industry, is difficult to effective enforcement; And industry at present to go up the high frequency sieve sieve aperture of using the most carefully be 0.08mm, so adopt the high frequency sieve classification also improper.

The utility model content

The purpose of the utility model provides a kind of grind grading and uses cyclone, contain the particle of a large amount of granularities less than 0.053mm in the material that its classification obtains, and classification efficiency is very high.

To achieve these goals; The technical solution of the utility model is: a kind of grind grading is used cyclone, comprises cyclone body, mineral-feeding pipe, overflow pipe, sand setting mouth, and cyclone body comprises barrel portion and up big and down small cone part; The barrel portion top is removably connected with overflow pipe; The bottom is removably connected with the cone part, and insert in the barrel portion overflow pipe bottom, and the sand setting mouth is removably connected to the bottom of cone part; Fixed-site near the top on the barrel portion has mineral-feeding pipe; Mineral-feeding pipe is connected with barrel portion, and the tube wall of the tube wall of mineral-feeding pipe and barrel portion is tangent, and barrel portion, cone part, sand setting mouth include the inboard wear-resistant material layer and the casing play in the outside.

The utility model grind grading is used cyclone, and wherein, said barrel portion internal diameter is that D, length are 2.5D.

The utility model grind grading is used cyclone, and wherein, the cone angle of said cone part is 15 degree.

The utility model grind grading is used cyclone, and wherein, said overflow pipe internal diameter is that 0.44D, wall thickness are 0.08D, and the degree of depth that overflow pipe inserts barrel portion is 0.4D.

The utility model grind grading is used cyclone, and wherein, the internal diameter of said desilting mouth is 0.2D.

After adopting such scheme, in the finished product that the utility model grind grading obtains with the cyclone classification iron ore powder, granularity can account for more than 85% less than the material of 0.053mm, and classification efficiency is very high.

Description of drawings

Fig. 1 is the partial sectional view of the utility model grind grading with cyclone.

Specify the utility model grind grading below in conjunction with accompanying drawing and use cyclone.

The specific embodiment

As shown in Figure 1, the utility model grind grading comprises cyclone body 1, mineral-feeding pipe 2, overflow pipe 3, sand setting mouth 4 with cyclone, and cyclone body 1 comprises barrel portion 11 and up big and down small cone part 12; Barrel portion 11 tops connect overflow pipe 3 through flange, and the bottom connects cone part 12 through flange, and insert in the barrel portion 11 overflow pipe 3 bottoms; Sand setting mouth 4 is connected in the bottom of cone part 12 through flange; Position near the top on the barrel portion 11 also is welded with mineral-feeding pipe 2, and mineral-feeding pipe 2 is connected with barrel portion 11, and the tube wall of the tube wall of mineral-feeding pipe 2 and barrel portion 11 is tangent; Barrel portion 11, cone part 12, sand setting mouth 4 include the inboard wear-resistant ceramic material layer and the casing play in the outside; The internal diameter of barrel portion 11 is that D, length are 2.5D, and mineral-feeding pipe 2 internal diameters are 0.21D, and overflow pipe 3 internal diameters are 0.44D; Overflow pipe 3 wall thickness are 0.08D; The degree of depth that overflow pipe 3 inserts barrel portion 11 is 0.4D, and the cone angle of cone part 12 is 15 degree, and the internal diameter of desilting mouth 4 is 0.2D.

The utility model classification is with in the cyclone course of work; Material to be fractionated gets in the cyclone body 1 from mineral-feeding pipe 2 with certain pressure and flow; Under centrifugal force and the effect of particle self gravitation; Granularity and heavy material sink and discharge from sand setting mouth 4, and the material that granularity and proportion are little is discharged from overflow pipe 3.

The utility model classification is as shown in the table with the grading effect of cyclone:

The above embodiment describes the preferred implementation of the utility model; Be not that scope to the utility model limits; Under the prerequisite that does not break away from the utility model design spirit; Various distortion and improvement that the common engineers and technicians in this area make the technical scheme of the utility model all should fall in the protection domain that claims of the utility model confirm.

Claims

1. a grind grading is used cyclone; It is characterized in that: comprise cyclone body (1), mineral-feeding pipe (2), overflow pipe (3), sand setting mouth (4); Cyclone body (1) comprises barrel portion (11) and up big and down small cone part (12), and barrel portion (11) top is removably connected with overflow pipe (3), and the bottom is removably connected with cone part (12); Insert in the barrel portion (11) overflow pipe (3) bottom; Sand setting mouth (4) is removably connected to the bottom of cone part (12), and the fixed-site that barrel portion (11) is gone up near the top has mineral-feeding pipe (2), and mineral-feeding pipe (2) is connected with barrel portion (11); And the tube wall of the tube wall of mineral-feeding pipe (2) and barrel portion (11) is tangent, and barrel portion (11), cone part (12), sand setting mouth (4) include the inboard wear-resistant material layer and the casing play in the outside.

2. grind grading as claimed in claim 1 is used cyclone, it is characterized in that: said barrel portion (11) internal diameter is that D, length are 2.5D.

3. grind grading as claimed in claim 2 is used cyclone, it is characterized in that: the cone angle of said cone part (12) is 15 degree.

4. grind grading as claimed in claim 3 is used cyclone, it is characterized in that: said overflow pipe (3) internal diameter is that 0.44D, wall thickness are 0.08D, and the degree of depth that overflow pipe (3) inserts barrel portion (11) is 0.4D.

5. grind grading as claimed in claim 4 is used cyclone, it is characterized in that: the internal diameter of said desilting mouth (4) is 0.2D.