KR20030001693A - Screen mat having a grizzly bar to be turned - Google Patents

Abstract

PURPOSE: Provided is a screen mat for granularity selection equipped with a rotatable grizzly bar which changes straight movement of a rotational bar into a rotational movement to rotate a first and a second rotation body vertically for eliminating minerals held on the screen mat effectively so that it promotes selection work of the minerals. CONSTITUTION: The screen mat for granularity selection equipped with the rotatable grizzly bar comprises the parts of: the first rotation body which includes a first rotatable hollow axis(11), a first selection net(13) and a first connection axis(14) projected through a flange(12); the second rotation body which includes a second rotatable hollow axis(21), a second selection net(23) and a second connection axis(24) projected through a flange(22); and a rotation device which rotates the first rotation body and the second rotation body in rotating a screw for moving horizontally(33,33') in a medium of a screw block(32,32') received at the lower part of the rotational bar(31,31').

Description

Screen mat having a grizzly bar to be turned}

The present invention relates to a screen mat mounted in a vibrating screen device for sorting ores by particle size, in particular, ores sandwiched between grizzly bars by rotating a plurality of grizzly bars mounted in a moving direction of ore dropped into a body of the vibrating screen device. It relates to a particle size screening screen having a rotatable grizzly bar capable of eliminating.

In general, the vibrating screen device 100, as shown in Figure 1, as a conveying means to the support (200, 200 ') of the different height is mounted with vibration springs (210, 210') to prevent the impact due to vibration on the upper A screen body 110 having a transported ore flowing into the upper side and having a first discharge port 112 through which the ore having a large particle size is discharged and a second discharge port 113 through which the ore having a small particle size is discharged; A screen mat 120 mounted inclined along the screen body 110 to sort the ore introduced into the screen body 110 by particle size; It is mounted to the lower side of the screen body 110 is composed of a vibration motor 130 for vibrating the screen body 110.

In particular, the screen mat 120 is a pair of hollow shafts (121, 122) and the hollow shafts (121, 122) mounted with flanges (121a, 122a) fixed to the width direction of the screen body 110 at both ends as shown in FIG. Consists of a sorting network 123, the plurality of grizzly bar (123a) is fixed in the moving direction of the ore at the top of the.

On the other hand, the ore introduced into the screen body 110 is dropped on the screen mat 120, the particle size in the process of moving downward along the screen mat 120 by the vibration of the own weight and vibration motor 130 of the ore The small ore is dropped between the gaps of the grizzly bar 123a and then discharged to the second outlet 113, and the ore having a large particle size is moved along the screen mat 120 and dropped to the first outlet 112. Discharged.

However, the ore having a particle size similar to that of the grizzly bar 123a is sandwiched between the grizzly bar 123a so that the screen mat 120 is blocked.

In this case, in order to remove the ore blocking the screen mat 120, the ore by the impact of the ore by the human hand to remove and the ore by putting a round bar or chain in place of the ore on the upper surface of the screen mat 120 to vibrate There is a method of shock crushing and dedusting.

However, since the inside of the screen device 100 is very narrow and no human can enter, after removing the upper part of the screen body 110 to remove the ore stuck in the screen mat 120, ore removal is possible, so much time and expense There was a problem that takes.

On the other hand, when the vibration width of the screen device 100 is increased in order to prevent clogging of the screen mat 120, the strength of the screen device 100 should be reinforced, so that the weight of the screen device 100 is inefficient depending on the degree of reinforcement. As the vibration width decreases, not only the amount of ore that can be processed is reduced, but also when the blockage occurs on the screen mat 120, the blockage increases and at the same time, more robustly becomes a problem.

Accordingly, the present invention has been made in order to solve the problems as described above, consisting of two rotating bodies rotated according to the rotation of the hollow shaft of the screen mat, ore sandwiched between the grizzly bar by rotating the two rotating bodies. It is an object of the present invention to provide a particle size screening screen having a rotatable straight bar that can be removed.

1 is a schematic cross-sectional view showing a state in which a screen mat is mounted on a screen device according to the prior art;

2 is a perspective view of a screen mat according to the prior art,

3 is a perspective view of a particle size screening screen having a rotatable grizzly bar according to the present invention;

Figure 4 is an operating state of the particle size screening screen having a rotatable grizzly bar according to the present invention,

5 is an assembly view of a rotating body which is a component of a particle size screening screen having a rotatable grizzly bar according to the present invention.

Explanation of symbols on the main parts of the drawings

10: first rotating body 11: the first hollow shaft

12,12 ': Flange 13: 1st sorting network

13a: grizzly bar 14: first connecting shaft

20: second rotating body 21: second hollow shaft

22,22 ': Flange 23: Second sorting network

23a: grizzly bar 24: second connecting shaft

30: rotating device 31, 31 ': rotating bar

32,32 ': Screw block 33,33': Left and right feed screw

100: vibrating screen device 110: screen body

130: vibration motor

Hereinafter, an embodiment according to the present invention will be described in detail with reference to the accompanying drawings.

Figure 3 is a perspective view of the mounting screen of the particle size selection screen mat with a rotatable grizzly bar according to the present invention, Figure 4 is an operating state diagram of the particle size screening screen with a rotatable grizzly bar according to the present invention, Figure 5 An assembly view of a rotating body that is a component of a particle size screening screen having a rotatable grizzly bar according to the present invention, in which the ore introduced into the screen body 110 is mounted on the lower weight of the ore and the lower side of the screen body 110. In constructing the screen mat for sorting the ore by the particle size during the operation of the vibration motor 130, the first hollow shaft 11 to be rotatable through the flanges (12, 12 ') in the width direction to the screen body (110) ), The first sorting net 13 made of a plurality of grizzly bars 13a is attached to the upper side of the first hollow shaft 11 in the direction of movement of the ore, and the first hollow shaft 11 is attached thereto. Inserted at one end of the flange (1 A first rotating body 10 formed of a first connecting shaft 14 protruding through 2); With the second hollow shaft 11 mounted on the screen body 110 in the width direction so as to be rotatable through the flanges 22 and 22 ', the moving direction of the ore is located above the second hollow shaft 21. A second screening net (23) consisting of a plurality of grizzly bar (23a) is attached, it is inserted into one end of the second hollow shaft (21) made of a second connecting shaft (24) protruding through the flange 22 2 rotating body 20; The screw blocks 32 and 32 'accommodated at the lower ends of the rotation bars 31 and 31' are connected to the first and second connection shafts 14 and 24 through the respective rotation bars 31 and 31 '. It consists of a rotating device 30 for rotating the first and second rotating body 10 and the second rotating body 20 in the course of rotation of the left and right feed screw (33, 33 ') coupled by a screw.

First, since the screen body 110 and the vibration motor 130 of the components according to the present invention are the same as in the prior art, detailed description thereof will be omitted.

The first rotating body 10 is formed of an internal space in a central portion rotatably through flanges 12 and 12 'accommodating cylindrical bearings 12a and 12a' in the width direction of the screen body 110. The single hollow shaft 11 is mounted.

In addition, the upper surface of the first hollow shaft 11 to guide the ore introduced into the screen body 110 to form a straight shape while the lower surface is the attachment groove 13aa of the same shape as the outer peripheral surface of the first hollow shaft (11), 13aa ') is formed with a first sorting net 13 composed of a plurality of grizzly bars 13a.

Then, the driving force to the key groove 14c formed on the circumferential surface of the first hollow shaft 11 protrudes through the insertion tube 14a and the flange 12 inserted into the first hollow shaft 11 before and after the cylindrical body. A hollow first connecting shaft 14 made of a protruding tube 14b to which the acting key 14d is mounted is attached.

On the other hand, the second rotating body 20, the flanges 22, 22 'accommodating cylindrical bearings 22a, 22a' in the width direction of the screen body 110 in a symmetrical shape with the first rotating body 10. In addition to the rotatable through, the second hollow shaft 21 is mounted in parallel with the first hollow shaft 11.

In addition, the second selection mesh 23 made of the grizzly bar 23a having the same shape as the grizzly bar 13a of the first screening net 13 on the second hollow shaft 21 is the grizzly bar 13a. Placed between and attached.

Then, the driving force to the key groove 24c formed on the circumferential surface while protruding through the insertion tube 24a and the flange 22 inserted into the second hollow shaft 21 before and after the cylindrical body at one end of the second hollow shaft 11. A hollow second connecting shaft 24 made of a protruding tube 24b to which the acting key 24d is mounted is attached.

On the other hand, the rotary device 30, the insertion hole (31a, 31a ') is inserted into the protrusion pipe (14b, 24b) of the first and second connecting shafts (14, 24), the upper portion of the body into the protrusion pipe (14b, 24b). ) Is formed and the rotary bars 31 and 31 formed with fitting grooves 31b and 31b 'are formed in the same direction as the insertion holes 31a and 31a' on the bottom surface of the 'c' shape, which is the lower part of the body.

Then, the screw blocks 32 and 32 'are formed in the fitting grooves 31b and 31b' of the rotation bars 31 and 31 'and the fitting protrusions 32a and 32a' protrude from the front and rear surfaces of the body.

The left and right feed screws 33 and 33 'having the bearing blocks 33a and 33a' mounted at both ends are screwed together while the threads are formed in different directions on the side surfaces of the screw blocks 32 and 32 '.

Then, to the ends of the adjacent left and right feed screw (33, 33 ') for the simultaneous rotation of the left and right feed screw (33, 33') by coupling coupling (33b, 33b '), which is an axis connecting device, The tapered pin 33c is inserted into and fixed to 33b and 33b '.

Hereinafter, described in detail with reference to the accompanying drawings illustrating the operation according to the present invention.

First, in order to remove the ore sandwiched between the grizzly bar (13, 23) of the first and second rotating bodies (10, 20), the inflow of ore into the screen body (110) is stopped, and the vibration screen device (100) is idling. To stop the operation of the vibration screen device 100 after leaving only the ore sandwiched between the grizzly bar (13a, 23a).

Then, when the left and right feed screws 33 and 33 'are rotated to one side, the screw blocks 32 and 32' screwed with the left and right feed screws 33 and 33 'rotate the left and right feed screws 33 and 33'. As the linear movement in the spaced apart direction along the rotation bar (31, 31 ') mounted on the upper portion of the screw blocks (32, 32') is also linear movement.

Rotation bar with keys 14d and 24d of protruding pipes 14b and 24b inserted into insertion holes 31a and 31a 'of the rotation bars 31 and 31' in the process of linear movement of the rotation bars 31 and 31 '. When the linear movement force of (31, 31 ') is applied, the keys (14d, 24d) are rotated in the insertion hole (31a, 31a'), the connecting shaft (14, 24) is in a rotational motion.

That is, the horizontal movement force of the rotation bars 31 and 31 'acts on the keys 14d and 24d to be converted into rotational movements so that the first and second rotating bodies 10 and 20 rotate upward.

Then, when the left and right feed screw (33, 33 ') is rotated in the opposite direction, the rotation bar (31, 31') is moved in a straight line in the direction that is close.

In the linear movement of the rotary bars 31 and 31 ′, the first and second rotating bodies 10 and 20 to which the connecting shafts 14 and 24 are attached are rotated downward and returned to their original states.

Repeating this vertical rotation several times removes ore stuck between the grizzly bars 13a and 23a.

As described above, according to the particle size selection screen mat having a rotatable grizzly bar according to the present invention, the linear motion of the rotation bar is converted into rotational motion so that the first and second rotational bodies are rotated in the up and down directions, thereby The ore stuck to the mat can be removed efficiently in a short time, which not only promotes ore sorting work but also reduces workmanship and overall expenses required to remove ore stuck to the screen mat, thereby improving work efficiency. .

Claims (1)

In the ore introduced into the screen body 110 constitutes a screen mat that sorts ore by particle size during the operation of the vibration motor 130 mounted on the lower weight of the ore and the lower side of the screen body 110, With the first hollow shaft 11 mounted on the screen body 110 in a width direction so as to be rotatable through the flanges 12 and 12 ', the moving direction of the ore is located above the first hollow shaft 11. A first screening net (13) consisting of a plurality of grizzly bar (13a) is attached, and is inserted into one end of the first hollow shaft (11) made of a first connecting shaft (14) protruding through the flange 12 1 rotating body 10; With the second hollow shaft 11 mounted on the screen body 110 in the width direction so as to be rotatable through the flanges 22 and 22 ', the moving direction of the ore is located above the second hollow shaft 21. A second screening net (23) consisting of a plurality of grizzly bar (23a) is attached, it is inserted into one end of the second hollow shaft (21) made of a second connecting shaft (24) protruding through the flange 22 2 rotating body 20; The screw blocks 32 and 32 'accommodated at the lower ends of the rotation bars 31 and 31' are connected to the first and second connection shafts 14 and 24 through the respective rotation bars 31 and 31 '. Rotation, characterized in that consisting of a rotating device 30 for rotating the first rotating body 10 and the second rotating body 20 during the rotation of the left and right feed screw (33, 33 ') coupled by a screw type Particle size screen mat with grizzly bar available.