KR20030045989A - A screen apparatus for sorting ore - Google Patents

Abstract

PURPOSE: A screen device capable of distributing a conveyed article is provided to distribute and introduce a conveyed article over the entire parts of a screen net of the screen device. CONSTITUTION: The screen device(1) comprises: a frame(10) which is connected to a shaft driven by a motor(12) and having a cam(16) and vibrates upon the driving of a motor by being supported in a spring structure; a screen net(30) which is disposed in multistage inside the frame(10) and screens a conveyed article introduced via a chute(20) by particle size; a plurality of rotary shafts(50) which are disposed opposite to one another above the frame(10) so as to rotate in a reverse direction in a mountain form; and a variable type rotary blade(70) which is disposed to form a variable gap(G) on the outer periphery of the rotary shafts(50) and rotates integrally with the rotary shafts(50).

Description

Screen device capable of distributing transportation materials {A SCREEN APPARATUS FOR SORTING ORE}

The present invention relates to a screen device for classifying by particle size after crushing the raw materials in the raw material processing equipment for processing ore, the raw material of the steel mill, in particular, the central portion of the screen device while falling to the screen device from the upper chute The present invention relates to a screen device capable of dispersing and transporting materials so that raw materials introduced into the screen device in a chute can be dispersed in the longitudinal direction of the screen device so as to prevent the ore crushed and injected from being deteriorated. will be.

In general, ores used as raw materials in steel mills are crushed to a suitable granularity that can be used in blast furnaces and sintering processes through various stages of crushing at the crushing facility. Usually, large ore is used as a crusher. A crushing operation for crushing to approximately 250 mm, a heavy crushing operation for crushing 250 mm ore through the crushing process to a particle size of 8-30 mm, and finally, an 8-30 mm ore of heavy chains of 8 mm or less Grinding is performed by crushing to granularity.

Therefore, the crushed ores that have undergone such crushing, heavy crushing, and crushing operations are to pass through the screen network according to their particle size and to be classified according to the size of the eyes by particle size. Is shown in FIGS. 1 and 2.

That is, as shown in FIGS. 1 and 2, the screen net 130 having a mesh to be separated inside the screen frame 120 installed as the spring support structure 110 is installed in multiple stages, and the frame 120 is provided. When the motor 142 of the shaft 140 connected to) is driven, the screen net 130 of the frame 120 is driven by the rotation of the cam 144 installed on the shaft 140. By vibrating by the elastic force of the spring 110, the transport 160 such as ore injected through the chute 150 on the upper part is classified according to the particle size, the transport having the smallest particle size through the bottom screen is discharge chute It is discharged through 170.

At this time, the rotational shock generated during the vibration of the screen net 130 is absorbed and the fixing of the frame 120 to the support spring 110 so that the vibration is smooth.

However, in the conventional screen device 100 as described above, as shown in Figs. 2 and 3, the transport, that is, the ore 160, etc. are put on the screen net 130 through the chute 130. When the transport 160 is concentrated in the center of the screen net 130 is easy to accumulate, and eventually takes a considerable time to screen the transport of the transport 160 stacked only in the center of the screen net 130, in particular Since the portion of the shipment 160 that is secured to the screen net 130 easily occurs, the screen work efficiency of the shipment 160 is reduced.

In addition, when the transport 160 is concentrated on only one part of the screen net 130 and flows toward the discharge chute 170 side, only a part of the screen net 130 is worn out, and abrasion phenomenon occurs in the severe case, the screen net ( As the hole is formed in the 160, stepwise particle size separation is not performed, and the ore of the large or small particle size is mixed and, in the severe case, the transport 160 overflows from the screen network 130, thereby degrading the quality of the raw material. In addition to the environmental pollution caused by the fall of the surroundings of the device, there are various problems such as the operation rate of the device is reduced due to the maintenance work according to the damage of the screen network.

The present invention has been made in order to solve the various problems as described above, the object is to install a rotating screw having a variable wing on the top of the screen net to rotate in opposite directions, such as ore injected from the chute Conveying materials are distributed and distributed throughout the screen net to prevent ore sticking to the screen net due to the load deflection, and to prevent the cargo from overflowing from the screen net to increase the screen efficiency of the screen device. It is an object of the present invention to provide a screen device capable of dispersing a transport material which has little damage and improves the device operation rate.

1 is a perspective view showing a general screen device

Figure 2 is a perspective view showing the internal configuration of a conventional screen device

3 is a front configuration diagram showing the concentration phenomenon of the transport in the conventional screen device

Figure 4 is an overall configuration showing a screen device capable of dispersing the transport according to the present invention

5 shows a device of the present invention,

(a) is an exploded perspective view

(b) is a schematic diagram showing another embodiment of a chain link

Figure 6 is a front configuration diagram showing the operating state of the present invention device

7 (a)-(c) are schematic diagrams showing rotating shaft vanes of the device of the present invention

Explanation of symbols on the main parts of the drawings

1 .... screen unit 10 ... frame

12 ... motor 14 ... vibration shaft

16 .... cam 18 .... spring support

20 .... chute 22 .... conveyor

24 .... Transportation 30 ... Screen Screen

50 .... rotary shaft 52 .... support plate

54 .... Shaft Shaft 56 .... Driven Sprocket

58 .... drive motor 60 .... sprocket

62 .... drive chain 70 ... variable wing

72,74,76 .... 1-3 wings

As a technical configuration for achieving the above object, the present invention, the motor driven shaft is connected to the cam-mounted, the frame is supported by a spring structure and vibrated when driving the motor; And,

A screen net installed on the inside of the frame in multiple stages to screen the transport material flowing through the chute according to the size; And,

A plurality of rotary shafts are disposed to face each other in a mountain shape to the upper side of the frame, and are installed to rotate integrally with the rotary shaft while forming mutually variable clearances on the outer circumference of the rotary shaft. It is to provide a screen device capable of dispersing the transport consisting of; a variable rotary blade to distribute the transport flowing into the entire screen net.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 4 is an overall configuration diagram showing a screen device capable of dispersing the transport according to the present invention, Figure 5 shows the device of the present invention, (a) is an exploded perspective view, (b) is another embodiment of the chain connection 6 is a schematic front view showing an operating state of the device of the present invention, and FIGS. 7A to 7C are schematic views showing the rotor blades of the device of the present invention.

First, Figure 4 shows the overall configuration of the screen device (1) capable of dispersion processing of the present inventors, such a screen device 1 of the present invention is largely frame 10 and the screen net 30 and It is divided into a rotating member 50, each of these components 10, 30, 50 will be described in detail as follows.

First, Figures 4 and 5 show the frame 10 of the device 1 of the present invention, wherein the frame 10 of the present invention is a vibration in which a motor 12 is driven and a cam 16 is mounted. The shaft 14 is connected, and the frame 10 is supported by the spring structure 18 which absorbs the vibration and transmits the vibration to the cam 16 operating when the motor 12 is driven, respectively, in front, rear, left and right sides. do.

In addition, the upper portion of the frame 10 is a chute 20 for guiding the transport conveyor 22 and the transport material 24 such as the ore falling therefrom to the screen net 30 of the screen device 1 described below. ) Is arranged.

Next, FIGS. 4 and 6 show the screen net 30 of the device 1 of the present invention, wherein the screen net 30 of the present invention is a substantially incoming transport, ie, ore 24. The screen net 30 having the respective meshes for sorting and screening the shipments 24c, 24b and 24a having different particle sizes with different pulverization, heavy chains and pulverization is provided in multiple stages inside the frame 10. .

Next, Figure 5 and Figure 6 shows the variable rotary blade 70 of the present invention, the variable rotary blade 70 of the present invention, the upper side of the frame 10 in the opposite direction to each other (mountain-shaped) While forming a mutually variable clearance gap (G) on the outer periphery of the plurality of rotary shafts 50 installed to rotate to be rotated integrally with the rotary shaft 50, and eventually transported on the screen 30 The inlet is distributed while spreading over the entire screen net 30 by the variable rotary blade (70).

And, as shown in Figure 5a, the rotary shaft 50 has a shaft portion 54 which is integrally fixed to both sides to the support plate 52 mounted in a mountain (mount) on both sides of the upper portion of the frame (10) The bearings are individually mounted so as to rotate, such a rotation shaft 50 is first and second rotation shaft groups 50a and 50b which are inclined downwardly opposite to each other based on the center of the mountain support plate 52. )

In addition, the first and second rotation shaft groups 50a and 50b include a first sprocket 56 mounted at the shaft portion 54, which is installed at both outer sides of the frame 10 and is driven to rotate in opposite directions. 2, the first and second rotation shaft groups 50a and 50b are rotated in opposite directions when the motor is driven by being connected to the driving sprocket 60 and the driving chain 62 mounted on the second driving motors 58a and 58b. Consists of.

By the way, as shown in Figure 5b, in order to complete the individual drive of each of the rotary shafts 50, two driven sprockets 56a and 56b are provided in front and rear of one rotary shaft shaft 54. By fastening the respective drive chains 60, the driving force of the drive sprocket 60 of the motor 58 increases the adhesion between the sprockets 56 of the plurality of drive chains 62, which form a track. It may also be desirable to maintain the rotational force of 50) more consistently.

Next, as shown in FIGS. 6 and 7, the variable rotary blade 70 has a first rotary blade 72 installed at an interval of 90 degrees on the outer circumference of the rotary shaft 50, and the rotary member ( It consists of a second rotary blade 74 which is installed at an interval of 180 degrees on the outer circumferential surface of the 50, and a third rotary blade 76 is installed on the outer circumference of the rotating member 50, which is shown in FIG. Since it is introduced in the state of having different particle sizes of the transport material 24, one rotation to prevent the blocked large-size transport material 24c from being prevented from exiting into the narrow gap G between the wings is prevented. By adjusting the number of blades 70 installed on the shaft 50, it is easy to drop the transport material into the wing gap while inducing dispersion over the entire portion of the screen net 30 regardless of the particle size of the transport material 24. It is made up of a configuration.

Referring to the operation of the present invention made of the above configuration as follows.

As shown in Fig. 4 to 7, the screen device of the present invention, such that the ore 24, such as transport materials, shredded at various granularities through the crusher in the raw material processing equipment to be dispersed and introduced over the entire portion of the screen net 30 (1) is as follows.

As shown in FIGS. 4 and 5, when the motor 12 of the screen device 1 is operated, a spring structure in which the vibration shaft 14 supports the frame 10 at four points by the eccentric operation of the cam 16. And vibrating as 18, and eventually, the screen net 30 installed inside the frame 10 vibrates integrally with the frame 10, and has various particle sizes such as transportation, crushing, heavy chain and pulverization thereon. Screening the transported material 24 crushed into 24c, 24b and 24a.

On the other hand, as shown in Figures 5 and 6, before the transport material 24 is dropped onto the screen net 30 through the transfer conveyor 22 and chute 22, the operator of the control panel not shown Through operation, the first and second drive motors 58a and 58b provided on both outer sides of the frame 10 are rotated in opposite directions to each other.

Accordingly, as shown in FIG. 5, the shaft shaft 54 is mounted on the support plate 52 mounted in a mountain shape on both sides of the upper portion of the frame 10 so as to rotate the bearing shafts individually. That is, the first and second rotation shaft groups 50a and 50b which are inclined downwardly opposite to each other with respect to the center of the mountain support plate 52 are driven sprockets 56 mounted on the shaft portion 54. As the driving force of the motors 58 are connected to the driving sprocket 60 and the driving chain 62, the first and second rotation shaft groups 50a and 50b are rotated in opposite directions.

As a result, the variable rotary blades 70 installed on the circumferential surface of the rotary shaft 50 are rotated in a clockwise and counterclockwise direction in the outward direction with respect to the center of the screen 30. Even if the transport 24 is introduced into the center portion of the screen 30 through the chute 22 while integrally rotating by 50b, the shipments 24 extend over the entire portion in the outward direction of the screen 30. To inject.

On the other hand, as shown in Figures 6 and 7, the variable rotary blades 70, the number of installation is constant, because the clearance gap (G) formed between the blades 70 is very small, transported large grain size Since the water 24c may always be led to the end of the screen 30, the blades 70 are first rotating blades 72 installed at intervals of 90 degrees on the outer circumference of the rotating shaft 50, and the The second rotary blade 74, which is installed at intervals of 180 degrees on the outer circumferential surface of the rotating member 50, and the third rotary blade 76, which is installed alone on the outer circumference of the rotating member 50, are alternately disposed.

Accordingly, while the gap G between the wings 70 is variably formed, all the transport materials 24 of all particle sizes are injected to flow in the entire portion of the screen net 30, but between each wing 70 The dropping of the transport object is also smooth through the gap G, so that the screen efficiency of the transport object through the screen device 1 of the present invention is high.

As described above, according to the screen device capable of dispersing the transported material of the present invention, by depositing and transporting the transported objects falling on the screen net evenly, ore does not adhere to the screen net and prevents the cargo from overflowing from the screen net. The wear of the screen net is uniformly made over all parts, thereby increasing the operating efficiency of the screen.

Furthermore, the damage of the screen net is extended, and the life of the screen net is extended, thereby reducing the cost of the maintenance of the screen net, and having no fallout from the screen net, thereby preventing the environmental pollution around the screen device due to the fall. To provide an effect.

While the invention has been shown and described with respect to specific embodiments thereof, it will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit or scope of the invention as set forth in the claims below. I would like to know that those who have knowledge of this can easily know.

Claims (4)

A motor 10 and a cam-mounted shaft are connected and supported by a spring structure to vibrate when the motor is driven; A screen net (30) installed in multiple stages in the frame (10) for screening the transport material flowing through the chute by particle size; And, A plurality of rotation shafts 50 are installed to face each other in a mountain shape in a top direction of the frame 10 so as to face each other, and form a mutually variable gap G on an outer circumference of the rotation shaft 50. The rotating shaft 50 is installed so as to rotate integrally with a variable rotary blade 70 for distributing the transport material flowing on the screen 30 over the entire screen network 30; Decentralized Screen Device The shaft shaft 54 of claim 1, wherein the rotary shaft 50 is integrally fixed to both sides of the support plate 52 mounted in a mountain shape on both sides of the upper portion of the frame 10. Mounted to rotate, The rotary shaft 50 is composed of a first and second rotary shaft groups 50a and 50b which are inclined downward with respect to the center of the mountain support plate 52. Screen device According to claim 2, The rotary shaft group 50 is driven first and second drive sprockets 56 mounted on the shaft portion 54 is installed on both outer sides of the frame 10 and driven to rotate in opposite directions to each other The first and second rotation shaft groups 50a and 50b are connected to each other by a driving sprocket 60 and a driving chain 62 mounted on the motors 58a and 58b so as to rotate in opposite directions. Screen device capable of dispersing treatment of transported goods According to claim 1, The variable rotary blade 70, A first rotary blade 72 installed at an interval of 90 degrees on the outer circumference of the rotating member 50; and, A second rotary blade 74 installed at an interval of 180 degrees on an outer circumferential surface of the rotating member 50; And, Consisting of a third rotary blade 76 which is installed on the outer periphery of the rotary member 50; The first to third wings 72, 74, and 76 are alternately disposed on the rotary shafts 50 arranged in a mountain shape on the frame 10, so that the blades rotate when the rotary shaft 50 is rotated. Screen device capable of dispersing the transport, characterized in that the variable gap (G) is formed by the