KR200295759Y1 - Segregation Induction Device by Particle Size of Sintering Compound - Google Patents

Abstract

In order to produce sintered ore, the raw material mixed with various iron ores and subsidiary materials is first injected into the surge hopper to make segregation by particle size and then to be loaded into the sintering machine. The present invention relates to a segregation induction device for each particle size of the raw material for sintering which prevents uneven firing caused by knitting machines and improves productivity.

That is, the reciprocating conveyor automatically crosses and opens the angle of the damper member from side to side by moving and stopping the left and right sides of the surge hopper automatically. Accordingly, the so-called segregation, in which fine particles are formed at both side portions of the surge hopper and insert particles are accumulated at the center portion, is applied to the lower sintering machine truck by the drum feeder of the surge hopper. Fine-grained light is charged in both side parts, and granulated particles are charged in the center part, so that the density of the blended material is maintained in a uniform balance in the width direction of the sintering machine trolley, thereby achieving uniform firing.

Description

Segregation Induction Device by Particle Size of Sintering Compound

The present invention primarily makes segregation by particle size when injecting a raw material for mixing segregation materials for sintering, and more specifically, for preparing a sintered ore, a raw material containing various iron ores and subsidiary materials into a surge hopper. The present invention relates to a segregation induction device for each particle size of a sintered blended raw material, which is made to be loaded into a sintering machine, thereby preventing uneven firing caused by breathable knitting in the sintering process and improving productivity.

Conventional techniques for inducing particle size segregation of a blended raw material in the process of mixing the blended raw material in the surge hopper include the increase and decrease of the stop time of the reciprocating conveyor, the change of the stop position, and the fixing of the head pulley of the reciprocating conveyor. The blended raw material incorporated into the surge hopper by the damper was segregated by particle size, and the level shape, that is, the profile, of the blended raw material stored in the surge hopper was adjusted.

However, the technology that makes the raw material blended into the surge hopper in the above manner has caused a number of problems.

First, as shown in Figure 1a, the orbital motion when the conveyor 1 for operating the reciprocating from the upper side of the surge hopper (2) to feed the blended material when the operation in the stop state in the left position of the surge hopper The dropping point of the blended raw material (3) is grained away from the inner wall surface of the surge hopper (2) by the rotational force of the conveying belt, and the conveyor (1) is steamed at a position on the right side of the surge hopper (2). In this case, as the compounding material (3) falls close to the wall of the surge hopper, the profile shape of the compounding material (3) that eventually accumulates in the surge hopper (2) does not appear as a V (V) waveform (~) In this way, the particle size segregation of the blended raw material (3) was granulated in a non-uniform state.

Second, as described above, the particles having the coarse particle size (3) are accumulated on the left wall surface of the surge hopper (2) and the compound material (3) with the small particles are stacked on the right wall surface of the surge hopper (2). When the compounding material is charged in 5), the particle size of the compounding material accumulated on the left and right sides becomes uneven, so that the so-called horizontal segregation is poor.

Since the sintering machine trolley 5 has concentrated leakage on both sides of the vehicle body due to its structural causes, the sintering machine when charging the compounding material 3 into the sintering machine trolley 5 as a means for preventing such leakage. Into the both sides of the trolley, fine-grained blended raw materials were loaded, but coarse grained granular raw materials were loaded in the center to balance the overall loading density to make the horizontal segregation uniform.

As a prerequisite for satisfying the above conditions, the fine particles of the blended raw material incorporated into the surge hopper are required to maintain a so-called V-shaped profile shape in which the granulated particles are stacked on both side walls of the surge hopper and the granulated particles are stacked at the center.

Third, when the firing operation is performed in a state where the loading density of the compounding material 3 charged in the sintering machine cart 5 is different, the firing speed is different in each part of the same sintering machine truck.

That is, the place where the granular compounding material is charged and the charging density is high is low in breathability and the firing speed is slow, and when the granulation material of the granulation is charged and the loading density is low, the ventilation is improved and the firing speed is faster, resulting in unevenness. As the firing work is carried out in one state, the quality and productivity are reduced.

Fourth, the principle of sintering the blended raw material into the sintered ore is to charge the coarse particles at the lower end of the sintering machine trolley, but to charge the fine particles to the upper end to maximize the vertical segregation, causing the molten reduction reaction by suction of air downward Since the sintered ore is produced, the quality and productivity of the sintered ore will depend on the degree of vertical segregation.

Therefore, when the compounding material (3) in the surge hopper is cut out with the drum feeder (4), the granular granularity of the compounding material in the surge hopper (2) must be cut out first and then cut out after the fine grain size to maximize vertical segregation in the charging facility. However, in the conventional charging device, vertical segregation is reduced in the charging device because the charging material accumulates in a solid shape when the compounding material 3 is stacked in the surge hopper 2 as shown in FIG. 1B.

Therefore, the segregation induction apparatus of the conventional surge hopper is unable to solve the various problems as described above, the horizontal segregation is unbalanced while the profile of the compound material accumulated in the surge hopper is abnormally formed, so that uneven plasticity is made in the sintering machine. There was a problem that the quality is reduced.

The present invention has been made in view of the problems caused by the charging of the conventional compounding materials as described above, and its purpose is to form a V-shaped profile in the width direction of the sintering machine bogie when granulating the raw material for sintering in the surge hopper. It is to provide a segregation induction apparatus for each particle size of the compounding material for sintering can be stacked in the form of a diagonal in the longitudinal direction.

The present invention for achieving the above object is a compounding material that is built up and stacked in the serge hopper by allowing the reciprocating conveyor to automatically cross and open the angle of the damper member from side to side by the operation of repeating movement and stop to the left and right sides of the surge hopper. The profile of the sintering machine is formed in a V shape, so that the so-called segregation of fine grains on both side portions of the surge hopper and incorporation particles in the center portion is formed. Fine-grained light in the blended raw material that is added to the trolley is charged to both side parts, and granulated particles are charged to the central part, so that the density of the blended raw material is maintained in a uniform balance in the width direction of the sintering machine trolley, so that the plasticity in a uniform state is Characterized in that it is made.

1a and 1b is a front and side configuration diagram showing a state in which the blending raw material is incorporated into a conventional surge hopper,

Figure 2a and 2b is a perspective view of the separation state and the coupled state of the segregation induction apparatus of the embodiment of the present invention,

Figure 3a and 3b is an exemplary view of the raw material blended to the left and right portions of the surge hopper by the particle size segregation induction apparatus of the present invention.

<Description of Symbols for Major Parts of Drawings>

1: reciprocating conveyor 2: surge hopper

3: compounding material 5: sintering machine balance

10 damper member 11 hinge shaft

12: roller 13: liner

20: adjusting device 21: frame

22: bearing block 23: guide groove

24: Bolt 25: Shoring

26 screw shaft 30 guide member

31: fixing piece 32: adjusting plate

33: through hole

Hereinafter, the segregation induction device for each particle size of the raw material for sintering compound of the present invention will be described in detail with reference to the accompanying drawings.

Figure 2a and 2b is a perspective view of the separation state and the coupled state of the segregation induction apparatus of the embodiment of the present invention, the head pulley (1a) of the reciprocating conveyor (1) installed slidably reciprocally on the upper side of the surge hopper (2) An adjusting device 20 having a damper member 10 for inducing a dropping point of the blended raw material is provided, and the upper side of the reciprocating conveyor 1 is in contact with the upper end of the damper member 10 during the sliding operation, thereby adjusting the angle. The guide member 30 to be displaced is inclined over a predetermined section.

The damper member 10 is inclined to the upper side toward the right with respect to the direction in which the compounding material is transported from the hinge shaft 11 rotatably supported by the adjusting device 20, but the lower side is made of a flat plate to form a vertical The roller 12 is mounted on the upper end contacting the guide member 30, and a liner 13 is attached to the lower plate of the damper member 10 to prevent abrasion due to colliding with the falling raw material. .

Both ends of the hinge shaft 11 attached to the damper member 10 are rotatably supported by a bearing block 22 mounted on the upper frame 21 of the adjusting device 20, and the bearing block 22. The bolt is fastened with a bolt 24 so that the position can be changed along the guide groove 23 formed in the frame 21.

The adjusting device 20 is fixed by a plurality of struts 25 on the same main body where the reciprocating conveyor 1 is installed so as not to interfere with the operation of the head pulley 1a and the damper member 10 of the conveyor 1. Consists of.

One side of the bearing block 22 mounted on the adjusting device 20 provides a fixing force by screwing so as to adjust the angle of the hinge shaft 11 supporting the damper member 10, but the fixing force is removed by screwing. The screw shaft 26 which is released is provided.

The guide member 30 which contacts the roller 12 mounted at the upper end of the damper member 10 and shifts the angle of the damper member 10 from the lower hinge shaft 11 is provided to the base (not shown). The inclination of the guide member 30 by combining the control plate 32 having a plurality of through holes 33 to the fixed plurality of fixing pieces 31 by bolts 34, and selecting any one of the through holes 33 to couple them. Will be adjusted.

3A and 3B illustrate a state in which the compounding material is granulated to the left and right portions of the surge hopper by the particle size induction apparatus of the present invention, and the reciprocating conveyor 1 transporting the compounding material 3 from the supply hopper H. While running the reciprocating a predetermined distance from the top of the surge hopper 2 to mix the raw material in the surge hopper.

That is, the reciprocating conveyor 1 stops for a predetermined time at the left or right end of the surge hopper 2 and repeats the driving operation. When the reciprocating conveyor 1 is stopped on the right side of the surge hopper, the damper is stopped. Since no external force is applied to the member 10 to maintain the vertical state, the blended raw material 3 falling from the reciprocating conveyor 1 in this state does not hit the damper member 10 and faces the wall surface of the surge hopper 2. It is near water.

The granulated particles in the blended raw material falling as described above flows down to the center part of which the level is low in the surge hopper. At this time, the roller 12 installed at the upper end of the damper member 10 is in a state deviated from the guide member 30. Will be.

Subsequently, when the reciprocating conveyor 1 moves to be positioned at the left end of the surge hopper 2, the adjusting device 20 integrally installed in the reciprocating conveyor 1 moves in the same direction, and the upper end of the damper member 10 is moved. The roller 12 attached to the roller 12 begins to come into contact with the guide member 30 installed inclined over a predetermined section of the upper side thereof, and the roller 12 is inclined from the inclined top surface of the guide member 30 by a gradual sliding operation. The damper member 10 supported by the hinge shaft 11 is inclinedly displaced from the vertical state as shown in FIG. 3B.

At this time, the compounding material 3 falling from the reciprocating conveyor 1 is accumulated in the surge hopper while being guided by the damper member 10 which is gradually shifted in angle while progressing to the left side of the surge hopper 2.

When the reciprocating conveyor 1 reaches the left end point of the surge hopper 2 and stops, the damper member 10 is displaced to maintain the maximum inclination from the initial vertical state and induces the dropping of the blended raw material. The compounding material is accumulated close to the left wall of (2), and a large amount of the compounding material (3) is accumulated in proportion to the stop time in this state, and the level shape of the compounding material loaded in the surge hopper is V-shaped. Along with the formation of coarse particles, coarse particles flow into the center of the surge hopper.

On the other hand, when the reciprocating conveyor 1 located on the left side of the surge hopper 2 starts to move to the right, the restraining force applied to the damper member 10 through the roller 12 in contact with the guide member 30 is released. While the lower side of the damper member inclined from the hinge shaft 11 is vertically displaced, the external force applied to the damper member is removed at the point of successive reaching of the right end of the surge hopper while the influence of its own weight As you receive it, you will stand in perfect condition.

As described above, the angle of the damper member 10 automatically crosses and opens to the left and right by the reciprocating operation in which the reciprocating conveyor 1 repeatedly moves and stops the left and right sides of the surge hopper 2. As a result, the blended raw material 3 that is granulated and stacked in the surge hopper 2 has a V-shape profile, whereby fine grains are formed at both side portions of the surge hopper 2 and inserted particles at the center portion thereof. So-called segregation is achieved.

As a result, the granular raw material 3 to be granulated inside the surge hopper 2 has a fine grain size concentrated at both side portions of the surge hopper 2, while the granular particle size is increased in the central portion.

Therefore, when the compounding material is cut out by the drum feeder 4 in the state of segregation by particle size as described above, fine light in the compounding material introduced into the lower sintering machine trolley 5 is charged and assembled at both side parts. Since the particles are charged in the center portion, the density of the blended raw material 3 is maintained in a uniform balance in the width direction of the sintering machine trolley 5, thereby achieving uniform firing.

The action of the angle adjusting device 20 of the damping wave 11 is to push or pull the bearing block 13a of the shaft 13 fixing the damping wave as shown in FIG. As the angle of the shaft 13 is changed, the angle of the piercing surface changes.

On the other hand, since the bearing block 22 mounted on the adjusting device 20 is in a fluid state in the guide groove 23 by releasing a plurality of bolts 24, the bearing of the screw shaft 26 is tightened at this time. When the block 22 is pushed but the spiral of the screw shaft is released, a gap is formed between the screw shaft and the bearing block, so that the side angle of the hinge shaft 11 supporting the damper member 10 can be adjusted.

Typically, the side angle adjustment of the damper member 10 is adjusted according to the quality of the manufactured sintered ore, that is, the degree of the angle and the fraction. If the strength is higher than the control value and the fraction is lower than the control value, the side angle of the damper member 10 is adjusted. To increase the productivity by increasing the particle size segregation by increasing the angle of the compounding material (3) to increase the productivity, and if the strength is lower than the control value and the fraction is higher than the control value, the damper member (10). The side angle of is reduced to suppress particle size segregation, and the sintered ore strength and fraction are adjusted to fall within the control range.

As such, when the side angle of the damper member 10 is adjusted, the compounding material 3 falls while hitting the lower surface of the damper member 10 when the compounding material 3 falls from the transport belt. 3) is concentrated intensively, and as a result, a 45-degree diagonal level shape appears and segregation by particle size is achieved.

Therefore, when the compounding material 3 is cut out by the drum feeder 4, fine grains are first cut out and granulated particles are cut out later, and vertical segregation is maximized when loaded into the sintering machine 5 through the charging device. do.

As described above, the profile at the front of the surge hopper 2 is controlled to be in the form of a V in the process of granulating the blended raw material 3 in the surge hopper 2, and the side surface of the surge hopper 2 is controlled. The profile is controlled by a 45 ° angled diagonal line (/).

Therefore, in the sintering machine trolley (5), both side portions having good air permeability are charged with the raw material (3) containing fine grains of fine particle size, and the granulated granules with coarse particle size are loaded in the center part, so that the overall loading density of the sintering machine trolley (5) is increased. Uniform and horizontal segregation uniform loading.

As such, the segregation induction device for each particle size of the raw material for sintering compound of the present invention is made uniform in the density of charge, eliminating the uneven firing generated in the state of non-uniform air permeability, and improving the variation in the firing speed according to the sintered ore There is an effect that can lead to an improvement in quality and thus an increase in productivity.

In addition, the side profile of the surge hopper is improved to improve vertical segregation of the sintering machine bogie, so that the granulated particles in the blended material are concentrated in the lower layer of the sintering machine bogie, but the fine particles are piled up in the upper layer, so that the uniformity of fire and breathability There is an advantage to increase the productivity substantially.

Claims (1)

It is installed on the upper side of the serge hopper (2) to operate integrally with the reciprocating conveyor (1) to induce a dropping point of the blended raw material and has a roller (12) at the upper end inclined from the hinge axis (11) in the center of the vertical The damper member 10 is provided with a liner 13 to prevent abrasion on the lower surface of the frame, and the bearing block 22 rotatably supporting the hinge shaft 11 of the damper member 10 includes a frame ( The adjusting device 20 is fastened to the variable position along the guide groove 23 formed in the 21 and the bolt 24 and fixed by a plurality of struts 25 on the same body as the reciprocating conveyor 1, the adjustment It is installed on one side of the bearing block 22 mounted on the device 20 to provide a fixing force by screwing so that the angle of the hinge shaft 11 supporting the damper member 10 can be adjusted. A screw shaft 26 to be released, and a damper member at an upper side of the reciprocating conveyor 1; The control plate 32 having a plurality of through holes 33 in the plurality of fixing pieces 31 fixed to the body and installed to be inclined so as to displace the angle from the hinge shaft 11 at the contact with the roller 12 provided in the 10). ) Coupled to the bolt (34), segregation induction apparatus according to the particle size of the sintering compound raw material, characterized in that the configuration including a guide member 30 for adjusting the inclination by selecting any one of the through holes (33).