CN213255577U

CN213255577U - Circular vibrating screen capable of self-cleaning screen mesh

Info

Publication number: CN213255577U
Application number: CN202021877073.6U
Authority: CN
Inventors: 白少龙; 杨光远; 周彪; 赵杰
Original assignee: Tangshan Guoxuan Fine Coal Co ltd
Current assignee: Tangshan Guoxuan Fine Coal Co ltd
Priority date: 2020-09-01
Filing date: 2020-09-01
Publication date: 2021-05-25
Anticipated expiration: 2030-09-01

Abstract

The utility model provides a can self-cleaning screen cloth's circular vibrating screen, belongs to hierarchical screening equipment technical field for carry out the self-cleaning to the screen cloth. The technical scheme is as follows: the vibration exciter and the screen box are externally arranged and flexibly connected, the screen box and the screen are obliquely arranged, the screen is sleeved with a plurality of self-cleaning rings, the self-cleaning rings are circular self-cleaning rings or oval self-cleaning rings, the circular rings of the self-cleaning rings are sleeved on the transverse screen wires of the screen, and the self-cleaning rings are arranged on the transverse screen wires of the screen in a full row or at intervals. The utility model discloses a self-cleaning ring receives the influence of screen cloth circular motion, is circular motion around the horizontal screen silk of screen cloth simultaneously, can strike away the mineral that blocks up in the screen cloth sieve mesh, makes mineral can not block up the sieve mesh for a long time, reaches the purpose of self-cleaning. The utility model discloses simple structure, convenient to use, clearance effect are showing, and manual cleaning work is reduced by 3-4 times every day for about every 8 days 1 time, has reduced workman's intensity of labour, has guaranteed the screening effect, has improved the efficiency of equipment operation.

Description

Circular vibrating screen capable of self-cleaning screen mesh

Technical Field

The utility model relates to a can carry out circular vibrating screen of clearance to the mineral solid particle in the screen cloth belongs to hierarchical screening equipment technical field.

Background

Circular vibrating screen is the screening equipment that the ore dressing trade was used commonly, and circular vibrating screen is in work, and some are glued wet material and block up easily in the screen cloth sieve mesh, and screening efficiency descends after the screen cloth sieve mesh blocks up, causes even that whole sifter becomes the chute after blockking up completely. A commonly used treatment is a temporary shutdown, where manual knocks remove the plug. Temporary stoppage to manually treat the blockage affects the continuity of production, reduces the working efficiency and increases the labor intensity of workers.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a can be from the circular vibrating screen who clears up the screen cloth is provided, this kind of circular vibrating screen can clear away the plug on the circular vibrating screen cloth in the course of the work, has greatly alleviated the problem that the screen cloth sieve mesh blockked up, can reduce maintenance work volume, improve equipment's operating efficiency.

The technical scheme for solving the technical problems is as follows:

the utility model provides a can be from circular vibrating screen of clearance screen cloth, it includes sieve case, vibration exciter, screen cloth, vibration exciter and sieve case are external flexible connection, and sieve case and screen cloth slope are placed, and the cover is equipped with a plurality of self-cleaning rings on the screen cloth, and the self-cleaning ring is circular self-cleaning ring or oval self-cleaning ring, and the ring cover of self-cleaning ring is on the horizontal screen wire of screen cloth, and full row or interval arrangement on the horizontal screen wire of screen cloth are enclosed to self-cleaning.

The circular vibrating screen capable of self-cleaning the screen mesh is characterized in that the screen mesh width of the circular vibrating screen is D, the outer diameter of the circular ring of the circular self-cleaning ring is R = 0.5X D (0.5-0.7), the difference between the inner diameter and the outer diameter of the circular ring is R-R = D (0.05-0.15), the major axis of the ellipse of the oval self-cleaning ring is a = 0.5X D (0.5-0.7), and the minor axis of the ellipse b = a (0.7-0.9).

According to the circular vibrating screen capable of self-cleaning the screen mesh, the circumference of the self-cleaning ring is provided with small protruding teeth every 90 degrees, and the height h = D (0.02-0.05) of each small protruding tooth.

The utility model has the advantages that:

when the circular vibrating screen works, the self-cleaning ring is influenced by circular motion of the screen, meanwhile, the circular motion is carried out around the transverse screen wire of the screen, and minerals blocked in screen holes of the screen can be knocked out by the circular motion of the self-cleaning ring around the transverse screen wire, so that the minerals cannot block the screen holes for a long time, and the purpose of self-cleaning is achieved.

The utility model discloses simple structure, convenient to use, clearance effect are showing, can clear up the jam mineral in the sieve mesh automatically, and the work of artifical clearance sieve reduces to about every 8 days 1 by 3-4 times every day, has not only reduced workman's intensity of labour, has guaranteed the screening effect moreover, has improved the efficiency of equipment operation.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a left side view of FIG. 1;

FIG. 3 is a schematic view of the arrangement of self-cleaning rings on the screen face;

fig. 4 is a schematic structural view of a self-cleaning ring.

The figures are labeled as follows: the device comprises a screen box 1, a self-cleaning ring 2, an excitation motor 3, a vibration exciter 4, a screen 5, transverse screen wires 6, longitudinal screen wires 7, a mineral flow direction 8, a circular self-cleaning ring 9, an oval self-cleaning ring 10 and raised small teeth 11.

Detailed Description

Fig. 1 and 2 show that the utility model comprises a sieve box 1, a vibration exciting motor 3, a vibration exciter 4 and a screen 5. Vibration exciter 4 is fixed in on sieve case 1 crossbeam, and excitation motor 3 passes through flexonics with vibration exciter 4, and vibration exciter 4 is external flexonics with sieve case 1, and screen cloth 5 is fixed in on the screen cloth support of sieve case 1, and the angle is 15 with the horizontal plane contained angle to sieve case 1 and screen cloth 5 slope is placed.

Fig. 1, 2 and 3 show that a plurality of self-cleaning rings 2 are sleeved on a screen 5, circular rings of the self-cleaning rings 2 are sleeved on transverse screen wires 6 of the screen 5, and the transverse screen wires 6 are vertical to a mineral flow direction 8. In order to achieve a good self-cleaning effect, the self-cleaning ring 2 is made of manganese steel with good wear resistance, the self-cleaning ring 2 is sleeved on the transverse screen wires 6 of the screen in a connecting mode, the arrangement mode is full-row arrangement or interval arrangement, and the interval arrangement is divided into two modes of transverse interval arrangement and longitudinal interval arrangement.

Fig. 4 shows that the self-cleaning ring 2 is a circular self-cleaning ring 9 or an elliptical self-cleaning ring 10. In order to achieve the anti-blocking effect of the self-cleaning ring 2 without influencing the material sieving effect, the structures of the circular self-cleaning ring 9 and the elliptical self-cleaning ring 10 are defined as follows: the screen 5 of the circular vibrating screen is wide and D, the outer diameter R of a circular ring of the circular self-cleaning ring 9 is = 0.5X D (0.5-0.7), the difference between the inner diameter and the outer diameter of the circular ring is = R-R = D (0.05-0.15), the major axis a of an ellipse of the oval self-cleaning ring 10 is = 0.5X D (0.5-0.7), and the minor axis b of the ellipse is = a (0.7-0.9).

Fig. 4 shows that every 90 ° on the circumference of each self-cleaning ring 2 has small raised teeth 11, and the height h = D (0.02-0.05) of the small raised teeth 11. The self-cleaning ring 2 and the small protruding teeth 11 can effectively hit materials, and the materials are prevented from being blocked and clamped in the sieve holes.

The working process of the utility model is as follows:

when the circular vibrating screen works, the vibration exciting force in the circumferential direction generated by the vibration exciter acts on the screen box to enable the screen machine to do circular motion, the screen is fixed on the screen box, and the screen box do circular motion as well. The self-cleaning ring is affected by circular motion of the screen, and simultaneously performs circular motion around the transverse screen wire of the screen, when the self-cleaning ring moves around the circular motion of the transverse screen wire, the self-cleaning ring 2 and the small protruding teeth 11 can effectively strike materials, so that minerals blocked in screen holes of the screen are knocked out, the materials are prevented from being blocked and clamped in the screen holes, the screen cannot be blocked by the minerals for a long time, and the purpose of self-cleaning is achieved.

The utility model discloses an embodiment as follows:

the width of the screen 5 is D =50 mm;

the outer diameter of the circular ring of the circular self-cleaning ring 9 is R =15mm, and the difference value of the inner diameter and the outer diameter of the circular ring is 3 mm;

the major axis of the ellipse of the elliptical self-cleaning ring 10 is a =15mm, and the minor axis of the ellipse is b =10 mm;

the height of the raised small teeth 11 of the self-cleaning ring 2 is h =2 mm.

Claims

1. The utility model provides a can self-cleaning circular vibrating screen of screen cloth, it includes sieve case (1), vibration exciter (4), screen cloth (5), vibration exciter (4) and sieve case (1) are external flexible coupling, and sieve case (1) and screen cloth (5) slope are placed its characterized in that: the self-cleaning type screen cloth is characterized in that a plurality of self-cleaning rings (2) are sleeved on the screen cloth (5), the self-cleaning rings (2) are circular self-cleaning rings (9) or oval self-cleaning rings (10), the circular rings of the self-cleaning rings (2) are sleeved on the transverse screen wires (6) of the screen cloth (5), and the self-cleaning rings (2) are arranged on the transverse screen wires (6) of the screen cloth (5) in a full row or at intervals.

2. The circular vibratory screen capable of self-cleaning the screen of claim 1, wherein: the screen mesh (5) of the circular vibrating screen is D in width, the outer diameter of a circular ring of the circular self-cleaning ring (9) is R = 0.5X D (0.5-0.7), the difference between the inner diameter and the outer diameter of the circular ring is R-R = D (0.05-0.15), the major axis of an ellipse of the oval self-cleaning ring (10) is a = 0.5X D (0.5-0.7), and the minor axis of the ellipse is b = a (0.7-0.9).

3. The circular vibratory screen capable of self-cleaning the screen of claim 1, wherein: the self-cleaning ring (2) is provided with small raised teeth (11) at intervals of 90 degrees on the circumference, and the height h = D (0.02-0.05) of the small raised teeth (11).