CN111841860A - Circular vibrating screen with optional particle size for filling coarse aggregate - Google Patents

Circular vibrating screen with optional particle size for filling coarse aggregate Download PDF

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Publication number
CN111841860A
CN111841860A CN202010630624.7A CN202010630624A CN111841860A CN 111841860 A CN111841860 A CN 111841860A CN 202010630624 A CN202010630624 A CN 202010630624A CN 111841860 A CN111841860 A CN 111841860A
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CN
China
Prior art keywords
screen
particle size
coarse
fine
feed opening
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010630624.7A
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Chinese (zh)
Inventor
陈蓓
李江明
徐辉祖
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Changsha Institute of Mining Research Co Ltd
Original Assignee
Changsha Institute of Mining Research Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Changsha Institute of Mining Research Co Ltd filed Critical Changsha Institute of Mining Research Co Ltd
Priority to CN202010630624.7A priority Critical patent/CN111841860A/en
Publication of CN111841860A publication Critical patent/CN111841860A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING 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
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
    • B02C23/10—Separating or sorting of material, associated with crushing or disintegrating with separator arranged in discharge path of crushing or disintegrating zone
    • B02C23/12—Separating or sorting of material, associated with crushing or disintegrating with separator arranged in discharge path of crushing or disintegrating zone with return of oversize material to crushing or disintegrating zone
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING 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
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/42—Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING 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
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/46—Constructional details of screens in general; Cleaning or heating of screens

Abstract

The invention discloses a round vibrating screen with optional particle size filled with coarse aggregate, which comprises: a coarse screen, a medium screen and a fine screen, all oscillating in an elliptical path; the coarse screen, the middle screen and the fine screen are sequentially arranged from top to bottom, and the diameters of the meshes are sequentially reduced; the first movable material selecting baffle is arranged on the middle screen along the length direction and is adjustable in position along the width direction of the middle screen; the second movable material selecting baffle is arranged on the fine screen along the length direction and is adjustable in position along the width direction of the fine screen; the invention is provided with three layers of screen meshes, and the screen meshes are provided with the movable material selecting baffle and the feed opening, so that materials on the screen can enter the lower material collecting opening of the screen through the feed opening, and crushed stones with various particle sizes can be screened simultaneously; the movable material selecting baffle plate is adjustable in position along the width direction of the screen, so that the purpose of adjusting the particle size distribution of the required crushed stones is achieved, the particle sizes of the screened finished crushed stones are diversified, and the requirements of different filling working conditions can be met.

Description

Circular vibrating screen with optional particle size for filling coarse aggregate
Technical Field
The invention relates to the technical field of mining production equipment, in particular to a round vibrating screen with a coarse aggregate filling selectable particle size.
Background
The circular vibrating screen is mainly used for the coarse aggregate crushed stone screening link and is mainly applied to the field of mine crushed stone filling. At present, the domestic existing screening equipment comprises a circular vibrating screen, a linear screen, a fixed screen, an arc screen and the like, and the existing screening equipment has the following defects: the particle size distribution of the crushed stones in the part under the screen is determined by crushing equipment, and the screening form is rigid; after the size of the screen is determined, only a certain fixed particle size of the crushed stone can be screened, and the particle size distribution of the crushed stone cannot be manually adjusted; if the particle size distribution of the screened finished product is unreasonable, the crushed stone grading is poor, and the adjustment can not be carried out through screening.
The patent with the application number of CN201720368308.0 provides a circular vibrating screen vibrator, which comprises a screen box, wherein the upper part of the screen box is connected with a switching tube, the upper part of the switching tube is fixed with a feeding hole, the lower side of the screen box is fixed by an erecting rod, the lower side of the screen box is connected with a material conveying box, the lower side of the screen box is connected with an elastic rod, the outer side of the elastic rod is provided with a spring group, the lower side of the elastic rod is connected with a fixed column, the left side of the screen box is connected with a pull rod, the left side of the pull rod is provided with a motor, the motor is erected by an upright rod, the lower side of the upright rod is fixed by a bottom plate, the motor is connected with a belt, the motor is connected with a rotating wheel; the technology can make the fine particle grade have the opportunity to move to the lower part of the material layer and be discharged through the sieve pores, and the materials clamped in the sieve pores can jump out to prevent the sieve pores from being blocked, but the particle size distribution of the crushed stone cannot be adjusted.
Therefore, a circular vibrating screen with optional particle size filled with coarse aggregates is needed to solve the prior technical problem.
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, the present invention aims to provide a round vibrating screen with optional particle size filled with coarse aggregate.
The invention is realized by the following technical scheme.
A round vibrating screen with optional particle size filled with coarse aggregates comprises:
a coarse screen, a medium screen and a fine screen, all oscillating in an elliptical path;
the coarse screen, the middle screen and the fine screen are sequentially arranged from top to bottom, and the diameters of the meshes are sequentially reduced;
the first movable material selecting baffle is arranged on the middle screen along the length direction and is adjustable in position along the width direction of the middle screen;
and the second movable material selecting baffle is arranged on the fine screen along the length direction and is adjustable in position along the width direction of the fine screen.
And a screen lower material collecting port is arranged at the lower part of the fine screen.
One end of the middle screen is provided with a first layered feed opening;
the first layered feed opening is positioned on one side of the first movable material selecting baffle.
One end of the fine screen is provided with a second layered feed opening;
the second layered feed opening is positioned on one side of the second movable material selecting baffle;
The second layered feed opening is aligned with the first layered feed opening up and down.
Compared with the prior art, the invention has the beneficial effects that:
1) the invention is provided with three layers of screen meshes, and the screen meshes are provided with the movable material selecting baffle and the feed opening, so that materials on the screen can enter the lower material collecting opening of the screen through the feed opening, the screening effect is good, and crushed stones with various particle sizes can be screened simultaneously;
2) the movable material selecting baffle plate is adjustable in position along the width direction of the screen, so that the purpose of adjusting the particle size distribution of the needed crushed stones is achieved, the particle size distribution of the crushed stones on the part of the screen is artificially selected, and the particle size of a finished product is not determined by the performance of crushing equipment any more;
3) the finished crushed stone screened by the invention has diversified particle sizes and can meet the requirements of different filling working conditions.
Drawings
FIG. 1 is a schematic structural view of the present invention;
in the figure: 1. coarse screening; 2. a middle screen mesh; 3. a fine screen; 4. screening a material collecting port; 5. a first movable material selecting baffle; 6. a first layered feed opening; 7. a second movable material selecting baffle; 8. and a second layered feed opening.
Detailed Description
The technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any inventive step, are within the scope of the present invention.
The present invention will be described in further detail below with reference to specific embodiments and with reference to the attached drawings.
As shown in fig. 1, a coarse aggregate-filled selectable-particle-size circular vibrating screen comprises;
a coarse screen mesh 1, a middle screen mesh 2 and a fine screen mesh 3;
the coarse screen mesh 1, the middle screen mesh 2 and the fine screen mesh 3 are sequentially arranged from top to bottom;
the diameters of the meshes of the coarse screen mesh 1, the middle screen mesh 2 and the fine screen mesh 3 are reduced in sequence;
the coarse screen mesh 1, the middle screen mesh 2 and the fine screen mesh 3 all swing in an elliptical path;
a screen lower material collecting port 4 is arranged at the lower part of the fine screen 3;
after being crushed by the crusher, crushed stones are conveyed to the upper end of the circular vibrating screen by a belt conveyor and enter the coarse screen mesh 1;
the swinging coarse screen 1 screens the crushed stones;
specifically, the diameter of the mesh of the coarse screen 1 is 10 mm;
crushed stone particles with the particle size smaller than the diameter of the meshes of the coarse screen mesh 1 fall into the middle screen mesh 2 through the meshes of the coarse screen mesh 1;
the swinging middle screen 2 screens the crushed stones;
specifically, the diameter of the mesh of the middle screen 2 is 8mm-10 mm;
crushed stone particles with the particle size smaller than the diameter of the meshes of the middle screen 2 fall to the fine screen 3 through the meshes of the middle screen 2;
the swinging fine screen 3 screens the crushed stones;
specifically, the diameter of the mesh of the fine screen 3 is 5mm-8 mm;
The crushed stone particles with the particle size smaller than the diameter of the mesh of the fine screen 3 fall to the screen lower material collecting port 4 through the mesh of the middle screen 2.
The middle screen 2 is provided with a first movable material selecting baffle 5 along the length direction;
the position of the first movable material selecting baffle 5 in the width direction of the middle screen 2 is adjustable;
one end of the middle screen 2 is provided with a first layered feed opening 6;
the first layered feed opening 6 is positioned at one side of the first movable material selecting baffle 5;
the fine screen 3 is provided with a second movable material selecting baffle 7 along the length direction;
the position of the second movable material selecting baffle 7 in the width direction of the fine screen 3 is adjustable;
one end of the fine screen 3 is provided with a second layered feed opening 8;
the second layered feed opening 8 is positioned at one side of the second movable material selecting baffle 7;
the second layered feed opening 8 is aligned with the first layered feed opening 6 up and down;
the crushed stones falling from the meshes of the coarse screen mesh 1 fall on the middle screen mesh 2;
the first movable material selecting baffle 5 divides the crushed stone falling on the middle screen 2 into two parts;
for the oversize materials on the middle screen 2, the oversize materials on one side of the first movable material selecting baffle 5 are discharged out of the middle screen 2 through a swinging acting force, and are conveyed back to the crusher through the conveying device to be continuously crushed;
The oversize material on the other side of the first movable material selecting baffle 5 falls into the undersize material collecting port 4 through the first layered feed opening 6 and the second layered feed opening 8;
the second movable material selecting baffle 7 divides the crushed stone falling on the fine screen 3 into two parts;
for the oversize materials on the fine screen 3, the oversize materials on one side of the second movable material selecting baffle 7 are discharged out of the fine screen 3 through a swinging acting force, and are conveyed back to the crusher through the conveying device to be continuously crushed;
the oversize material on the other side of the second movable material selecting baffle 7 falls into the undersize material collecting port 4 through the second layered feed opening 8;
thus, the screen lower material collecting port 4 comprises a material (coarse material) on the screen of the middle screen 2, a material (middle material) on the screen of the fine screen 3 and a material (fine material) under the screen of the fine screen 3;
wherein, the proportion of the coarse materials can be adjusted by changing the position of the first movable material selecting baffle 5 in the width direction of the middle screen 2; the proportion of the medium materials can be adjusted by changing the position of the second movable material selecting baffle 7 in the width direction of the fine screen 3; thereby achieving the purpose of selecting the particle size of the crushed stone.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions deviate from the technical solutions of the embodiments of the present invention.

Claims (7)

1. A round vibrating screen with optional particle size filled with coarse aggregates is characterized by comprising:
a coarse screen (1), a middle screen (2) and a fine screen (3) which all swing in an elliptical path;
the coarse screen (1), the middle screen (2) and the fine screen (3) are sequentially arranged from top to bottom, and the diameters of the meshes are sequentially reduced;
a first movable material selecting baffle (5) is arranged on the middle screen (2) along the length direction and is adjustable in position along the width direction of the middle screen (2);
a second movable material selecting baffle (7) is arranged on the fine screen (3) along the length direction and is adjustable along the width direction of the fine screen (3).
2. The round vibrating screen with the optional particle size filled with coarse aggregates as recited in claim 1, characterized in that a screen underflow collecting opening (4) is provided at the lower part of the fine screen (3).
3. The round vibrating screen with optional particle size filled with coarse aggregates as claimed in claim 2, wherein,
one end of the middle screen (2) is provided with a first layered feed opening (6);
the first layered feed opening (6) is positioned at one side of the first movable material selecting baffle (5).
4. The round vibrating screen with optional particle size filled with coarse aggregates as claimed in claim 3, wherein,
one end of the fine screen (3) is provided with a second layered feed opening (8);
The second layered feed opening (8) is positioned at one side of the second movable material selecting baffle (7);
the second layered feed opening (8) is aligned with the first layered feed opening (6) up and down.
5. A coarse aggregate-filled selectable particle size circular vibrating screen as claimed in claim 1, characterized in that the mesh diameter of the coarse screen mesh (1) is 10 mm.
6. A coarse aggregate-filled selectable particle size circular vibrating screen as claimed in claim 5, characterized in that the mesh diameter of the medium screen mesh (2) is 8mm-10 mm.
7. A coarse aggregate-filled selectable particle size circular vibrating screen as claimed in claim 6, characterized in that the mesh diameter of the fine mesh (3) is 5mm to 8 mm.
CN202010630624.7A 2020-07-03 2020-07-03 Circular vibrating screen with optional particle size for filling coarse aggregate Pending CN111841860A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010630624.7A CN111841860A (en) 2020-07-03 2020-07-03 Circular vibrating screen with optional particle size for filling coarse aggregate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010630624.7A CN111841860A (en) 2020-07-03 2020-07-03 Circular vibrating screen with optional particle size for filling coarse aggregate

Publications (1)

Publication Number Publication Date
CN111841860A true CN111841860A (en) 2020-10-30

Family

ID=73153302

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010630624.7A Pending CN111841860A (en) 2020-07-03 2020-07-03 Circular vibrating screen with optional particle size for filling coarse aggregate

Country Status (1)

Country Link
CN (1) CN111841860A (en)

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