KR101667613B1 - Apparatus for treating lump ore of mix mixed raw material in surge hopper for sintering - Google Patents

Abstract

A shuttle conveyor which is reciprocated on a surge hopper of the sintering machine so as to prevent a line break of the scraper passing between the grizzly bars of the surge hopper and which feeds the raw material mixture into the surge hopper, A grizzly bar for filtering out strange light from the blended raw material, and a scraper which is rotatably installed on the shuttle conveyor and extends between the grizzly bars to remove strangles filtered between the grizzly bars.

Description

TECHNICAL FIELD [0001] The present invention relates to a sintering hopper,

The present invention relates to a sintering plant. More particularly, the present invention relates to an apparatus for treating a sintering machine surge hopper for treating strangles in a grizzly bar when a blending raw material for sintering is charged into a surge hopper.

Generally, a sintering machine is a main equipment of a sintering plant which produces sintered ores, which is the main raw material of the blast furnace. In the sintering process, moisture is added to the raw material mixture, the mixture is put into a surge hopper through a mixing process, and discharged to a sintering machine for sintering.

In order to stabilize sintering operation and produce sintered ores of uniform quality by uniformly mixing the raw materials to be charged in the sintering machine during the sintering process, the raw material supplied to the surge hopper is picked and treated.

A grizzly bar is provided at the upper end of the surge hopper. A scraper is installed on a shuttle conveyor for supplying the blend material to the surge hopper, thereby removing the stray light between the grizzly bars.

However, in the conventional equipment, there is a problem that the scraper can not effectively treat the attachment light when the attachment light is generated between the grizzly bars installed on the upper side of the surge hopper or the light incidence.

That is, the phenomenon that the scrapers are separated from the neighboring grizzly bars by the adhesive light or the light that is caught between the grizzly bars occurs. Also, wear and deformation of the grizzly bar causes a gap between the grizzly bars, and the scraper is also deformed by abrasion and the like, failing to adequately remove the adhesive light between the grizzly bars.

Thus, a phenomenon that a strange light enters the inside of the surge hopper occurs, the lifetime of the equipment is shortened, and the scrapers must be rearranged, thereby causing operational loss.

Also, since the adhesive light adhered to the grizzly bar can not be properly removed, the adhering light is formed, which hinders the operation of charging the compounding material smoothly. This adhering light causes a bias to one side in the surge hopper. This results in nonuniformity of the raw material to be charged on the sintering machine, which makes the sintering operation unsafe, resulting in deterioration of the quality of the sintered ore and a decrease in the production of the sintered ores.

There is provided a bar code processor of a sintering hopper which can prevent a line break of a scraper passing between grizzly bars of a surge hopper.

There is also provided a device for processing a sintering machine surge hopper which can vary the width of the scraper and effectively prevent the mixing material from adhering to the grizzly bar.

To this end, the treatment apparatus of the present embodiment is provided with a grizzly bar disposed at an interval above a surge hopper of a sintering machine for filtering out light from a blended raw material, a shuttle which is reciprocated above a surge hopper of a sintering machine and injects the blended raw material into a surge hopper And a scraper that is rotatably installed on the conveyor and extends between the grizzly bars to remove light that is filtered between the grizzly bars.

The processing apparatus of the present embodiment includes a guide bar which is provided on the shuttle conveyor and is disposed between the scrapers and extends long along the radius of rotation of the scrapers at a position spaced apart from the rotation axis of the scrapers and guides the side of the scrapers .

The guide bars may have a structure in which the length of the width corresponds to the distance between adjacent scrapers.

The guide bar may have a structure in which the upper end is axially coupled to the shuttle conveyor so as to be rotatable, and is spaced apart from the scrapers.

The processing apparatus of this embodiment may include a width varying unit installed at the tip of the scraper extending between the grizzly bars to vary the width of the scraper.

The width changing portion may include an auxiliary scraper having one end rotatably installed at the front end of the scraper and the other end extending in the width direction.

The width variable portion is a structure in which two auxiliary scrapers are arranged in a pair and opposed to the front surface of the scraper, one end of each auxiliary scraper is overlapped with each other and is pivotally coupled to the scraper and the other end is rotated in opposite directions along the width direction .

Wherein the width changing portion includes a fixing portion for fixing the auxiliary scraper and the fixing portion includes a shaft hole provided at one end of the auxiliary scraper, a female screw hole provided at the front end of the scraper, a shaft hole penetrating the shaft hole of the auxiliary scraper, And a fixing bolt fastened to the front surface of the scraper and fixing the auxiliary scraper to the front surface of the scraper.

The auxiliary scraper may have a structure in which a reinforcing portion is protruded from a front surface of a widthwise outer side end portion of the auxiliary scraper in contact with the grizzly bar.

As described above, according to this embodiment, by effectively removing the adhering light of the grizzly bar and uniformly introducing the blending raw material into the surge hopper, the air permeability is improved during the sintering process, and the quality of the sintered ores is improved.

In addition, by changing the width of the scraper according to the amount of abrasion of the scraper or the grizzly bar to minimize the clearance between the scraper and the grizzly bar, it is possible to more effectively remove the adhered light and extend the life of the scraper or the grizzly bar.

In addition, it is possible to prevent the scrapers from being separated from the grizzly bar, thereby preventing the equipment from being damaged, and preventing the work delay for rearrangement, thereby improving the productivity.

1 is a schematic view showing a sintering machine equipped with a surge hopper according to the present embodiment.
FIG. 2 is a schematic perspective view showing a bar code processor installed on the upper end of a surge hopper of a sintering machine according to the present embodiment.
Fig. 3 is a schematic side cross-sectional view showing the quark treatment apparatus in this embodiment.
Figs. 4 and 5 are views for explaining the operation of the barcode processor according to the present embodiment.
Fig. 6 is an exploded perspective view showing a scraper structure of a barber treatment apparatus according to the present embodiment.
FIGS. 7 and 8 are views for explaining the scraping action of the spectrophotometer according to the present embodiment.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. As will be readily understood by one of ordinary skill in the art, the following embodiments may be modified in various ways within the scope and spirit of the present invention. Wherever possible, the same or similar parts are denoted using the same reference numerals in the drawings.

All terms including technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the art to which the present invention belongs. Predefined terms are further interpreted as having a meaning consistent with the relevant technical literature and the present disclosure, and are not to be construed as ideal or very formal meanings unless defined otherwise.

FIG. 1 shows a sintering machine equipped with a surge hopper according to the present embodiment. FIGS. 2 and 3 illustrate a photolithography processing apparatus provided on the top of a surge hopper according to the present embodiment.

As shown in FIG. 1, the sintering machine 100 includes a bogie 110 in the form of an endless track in which a blend material is stacked and sintered, and a bogie 110 disposed on the bogie along the traveling direction of the bogie, A surge hopper 130 for charging the raw material mixture, and an ignition furnace 140 for igniting the surface of the raw material mixture are continuously arranged. At the exit side of the sintering machine, a crusher 150 for treating the sintered light is provided. A plurality of windboxes 160 are continuously disposed in a lower portion of the carriage to suck air into the lower portion of the carriage to sinter the blending material.

The surge hopper 130 receives the blend material to be charged by the carrier, and supplies the blend material to the inside of the carrier via the drum feeder installed at the lower end.

At the upper end of the surge hopper, a plurality of grizzly bars 132 are arranged at regular intervals so as to pick out the coarse light mixed in the blended raw materials to be injected. Then, the shuttle conveyor 170 reciprocates along the upper end of the surge hopper to drop the material mixture onto the grizzly bar 132. Therefore, the blended raw material discharged from the shuttle conveyor 170 is introduced into the surge hopper 130 through the grizzly bars 132, and the stranded light mixed in the blend material is caught and separated without passing between the grizzly bars 132 .

The shuttle conveyor 170 is provided with a scraper disposed between the grizzly bars 132. The shuttle conveyor 170 is capable of moving the grizzly beams caught between the grizzly bars 132 in the course of reciprocating movement of the shuttle conveyor 170, And then discharged to the outside of the surge hopper 130 by pushing it toward the end of the bar 132. 2, the y-axis direction is the extending direction of the grizzly bar 132, that is, the moving direction of the shuttle conveyor 170, and the z-axis direction is the direction in which the scrapers are arranged.

The scraper 10 is a long elongated bar-shaped structure with the free end, lowered downward, to extend between the grizzly bars 132. The upper end of the scraper 10 is rotatably and axially coupled to the shuttle conveyor 170 via the rotary shaft 12 so that the scraper 10 is rotated by the scraper 10 when the scraper 10 rides over the stray light stuck in the grizzly bar 132. [ So that it can be lifted up.

The processing apparatus of the present embodiment is configured such that when the scraper 10 is pivoted over the light beam struck by the grizzly bar 132, the scraper 10 moves exactly along the gap between the grizzly bar 132 and the grizzly bar 132 So that it is possible to prevent the user from leaving his or her own movement line.

To this end, the processing apparatus of the present embodiment is arranged such that the rotating radius of the scraper 10 is set at a position spaced apart from the rotating shaft 12 of the scraper 10 by being disposed between the scraper 10 and the shuttle conveyor 170 And a guide bar 20 which extends along the side of the scraper 10 and guides the side surface of the scraper 10 when the scraper 10 is rotated.

3, each of the guide bars 20 is curved in a substantially arc-like shape, and is disposed so as to cover the entire rotation range of the scraper 10. The turning range of the scraper 10 can be understood as an angle range in which the scraper 10 is rotated. The guide bar 20 is extended to a position where both ends of the guide bar 20 are out of the range of the rotation angle of the scraper 10 so that the scraper 10 is always guided by the guide bar 20, do.

As shown in FIG. 4, the guide bars 20 are located between the respective scrapers 10. Thus, the guide bars 20 are disposed on both sides of the scrapers 10, respectively. Therefore, the two guide bars 20 disposed on both sides of the scraper 10 guide the scrapers 10 and prevent them from deviating out of the line.

The length in the width direction of the guide bar 20 corresponds approximately to the distance between the scraper 10 and the scraper 10. Means that there is almost no gap between the scraper 10 and the guide bar 20 because they are the same or smaller. Thus, the scraper 10 can be rotated only along its own line without flowing in the width direction between the guide bars 20. [

In the present embodiment, the guide bar 20 has a structure in which an upper end thereof is axially coupled via a rotary shaft 22 so as to be rotatable with respect to the shuttle conveyor 170. The guide bar 20 may be pivoted and spaced between the scrapers 10 as needed by the shuttle conveyor 170. For example, when the scraper 10 is to be maintained, the guide bar 20 is rotated to be spaced apart from the scraper 10, so that the scraper 10 can be more easily serviced without interfering with the guide bar 20 .

A plurality of guide bars 20 may be connected to form one unit. The number of the guide bars 20 constituting one unit is not particularly limited. For example, the present apparatus can divide the guide bar 20 into three units along the width direction of the shuttle conveyor 170. [ In the case of a structure in which a plurality of guide bars 20 are integrally connected to form a single unit, the supporting force between the guide bars can be strengthened, and the scraper can be guided more smoothly. In addition to these structures, the guide bars 20 may be separately provided and individually installed.

4 and 5 show the operation state of the guide bar 20. As shown in the figure, when the scraper 10 passes the snapshot G in accordance with the movement of the shuttle conveyor 170 while the snapshots are stuck in the grizzly bar 132, the scraper 10 takes the snapshot G It goes over.

At this time, the scraper 10 is lifted by the light beam G and is rotated about the pivot axis 12 at the upper end. The rotated scraper 10 is rotated back to its original position after the shuttle conveyor 170 is moved. In this process, the guide bars 20 are positioned on both sides of the scraper 10 in the width direction, and the scrapers 10 move along the guide bars 20 during the rotation. That is, the guide bar 20 guides both sides of the scraper 10, and the scraper 10 is returned to its original position along the guide bar 20 which has been rotated. Therefore, it is possible to prevent the scraper 10 from being detached from its own line and being stuck on another line.

Fig. 6 shows another embodiment of the present processing apparatus.

6, the processing apparatus of the present embodiment includes a width varying unit 30 installed at the tip of a scraper 10 extending between the grizzly bars 132 to vary the width of the scraper 10 . Here, the front end of the scraper 10 means a lower end substantially in contact with the grizzly bar 132.

The gap between the scraper 10 and the grizzly bar 132 can be reduced by widening the width of the scraper 10 through the width adjuster 30 when the scraper 10 is worn and the clearance between the scraper 10 and the grizzly bar 132 is widened .

To this end, the width adjuster 30 includes an auxiliary scraper 32 whose one end is rotatably installed on the front end of the scraper 10 and whose other end is widened in the width direction.

In the present embodiment, the width variable portion 30 has a structure in which two auxiliary scrapers 32 form a pair. The two auxiliary scrapers 32 are disposed on the front surface of the scraper 10 so that one end of each auxiliary scraper 32 overlaps with the other and is pivotally coupled to the scraper 10, As shown in Fig. Thus, the pair of auxiliary scrapers 32 can be spread like scissors around the upper axis.

When the two auxiliary scrapers 32 are folded as close as possible, their sizes are smaller than the scrapers 10 and are located inside the front surface of the scrapers 10.

The upper portion of the auxiliary scraper 32 is axially coupled to the upper portion of the front surface of the scraper 10. The auxiliary scraper 32 is pivoted about the pivot axis and the lower portion of the auxiliary scraper 32 spreads outward with respect to the scraper 10. Thus, as shown in Fig. 7, two auxiliary scrapers 32 are spread outwardly from the scrapers 10 to act to expand the length of the scrapers 10 in the width direction. The size of the auxiliary scrapers 32 in the width direction can be adjusted by varying degrees of rotation of the auxiliary scrapers 32.

The auxiliary scraper 32 may be tilted so that the widthwise outer tip of the auxiliary scraper 32 is in surface contact with the grizzly bar 132 when expanded.

The auxiliary scraper 32 has a structure in which a reinforcing portion 40 is protruded from the front surface of the outer side end portion in the width direction in contact with the grizzly bar 132. Since the auxiliary scraper 32 is substantially in contact with the Grizzly bar 132 at its outer end in the width direction, the reinforcing part 40 is protruded at a portion contacting the Grizzly bar 132 to increase the thickness of the auxiliary scraper 32 The abrasion of the auxiliary scraper 32 can be reduced.

The apparatus has a structure in which the auxiliary scraper 32 is fixed to the scraper 10 by using a fixing bolt 38. To this end, a shaft hole 34 is formed through one end of the auxiliary scraper 32 and an internally threaded hole 36 is formed in the front end of the scraper 10 at a position corresponding to the shaft hole. The fixing bolt 38 passes through the shaft hole 34 of the auxiliary scraper 32 and is fastened to the female screw hole 36. Thus, by securing the auxiliary scraper 32 and tightening the bolt 38, it becomes possible to fix the auxiliary scraper 32 in the open state with respect to the scraper 10. In the present embodiment, the fixing bolt 38 serves as a rotating shaft of the auxiliary scraper.

The operation of the auxiliary scraper will be described with reference to FIGS. 7 and 8. FIG.

The scraper 10 passes between the grizzly bars 132 to remove the attachment light B attached to the grizzly bar 132. [ In this process, the scraper 10 is brought into contact with the grizzly bar 132, and both sides in the width direction of the front end of the scraper 10 are worn.

When the scraper 10 is worn, the fixing bolt 38 provided on the scraper 10 is loosened and the secondary scraper 32 is pivoted to both sides as shown in Fig. The amount of rotation of the auxiliary scraper 32 is appropriately adjusted according to the distance between the grizzly bars 132. When the auxiliary scraper 32 is opened, the worn portion of the scraper 10 is covered by the auxiliary scraper 32, so that the widthwise size of the scraper 10 becomes the same as the state before worn. Then, the two auxiliary scrapers 32, which are screwed together with the fixing bolts 38, are fixed to the scraper 10.

Thus, as shown in FIG. 8, the scraper 10 is sized the same as the width between the grizzly bars 132 by the secondary scraper 32 spreading on both sides, so that the gap between the grizzly bars 132 is minimized. Thus, the attachment light B attached to the grizzly bar 132 can be removed by the auxiliary scraper 32 which is spread on both sides.

The auxiliary scraper 32 also wears due to friction with the grizzly bar 132 as it continues to be used. In the case where the auxiliary scraper 32 is worn as described above, the auxiliary scraper 32 is further opened outward as much as it is worn. The auxiliary scraper 32 is kept open as much as the abrasion amount, so that the light removing operation with the grizzly bar 132 can be continuously performed without replacing the scraper 10. When the abrasion amount of the auxiliary scraper 32 exceeds the appropriate value, the lifetime of the scraper 10 can be maximized by replacing only the auxiliary scraper 32 with a new one.

While the illustrative embodiments of the present invention have been shown and described, various modifications and alternative embodiments may be made by those skilled in the art. Such variations and other embodiments will be considered and included in the appended claims, all without departing from the true spirit and scope of the invention.

10: scrapers 12, 22:
20: guide bar 30: width variable portion
32: auxiliary scraper 34: shaft hole
36: female thread hole 38: fixing bolt
40:

Claims (10)

A grizzly bar arranged at an interval above the surge hopper of the sintering machine for filtering out the light from the blended raw material, a shuttle conveyor for reciprocating the upper portion of the surge hopper of the sintering machine and feeding the blended raw material into the surge hopper, And a scraper extending between the bars, the scraper removing the strangles filtered between the grizzly bars.
And a guide bar which is provided on the shuttle conveyor and which is disposed between the scrapers and extends long along the turning radius of the scrapers at a position spaced apart from the pivot axis of the scrapers and guides the side of the scrapers when the scrapers are rotated. Processing device. A grizzly bar arranged at an interval above the surge hopper of the sintering machine for filtering out the light from the blended raw material, a shuttle conveyor for reciprocating the upper portion of the surge hopper of the sintering machine and feeding the blended raw material into the surge hopper, And a scraper extending between the bars, the scraper removing the strangles filtered between the grizzly bars.
And a width varying portion provided at a tip of a scraper extending between the grizzly bars to vary a width of the scraper. 3. The method of claim 2,
Further comprising a guide bar installed on the shuttle conveyor and disposed between the scrapers and extending long along the turning radius of the scrapers at a position spaced apart from the pivot axis of the scrapers so as to guide the side of the scrapers during the scraper rotation A photochromic device. The method according to claim 1 or 3,
Wherein the guide bar has a width corresponding to a distance between neighboring scrapers. 5. The method of claim 4,
Wherein the guide bar is axially coupled to an upper end of the shuttle conveyor so as to be rotatable, and is spaced apart from the scrapers. The method according to claim 1,
And a width varying portion provided at a tip of a scraper extending between the grizzly bars to vary a width of the scraper. 7. The method according to claim 2 or 6,
Wherein the width changing portion includes an auxiliary scraper whose one end is rotatably installed on the front end of the scraper and whose other end is widened in the width direction. 8. The method of claim 7,
Wherein the width changing portion includes a pair of auxiliary scrapers each of which is opposed to the front surface of the scraper and one end of each auxiliary scraper is overlapped with the scraper so as to be pivotally coupled to the scraper and the other end is rotated in opposite directions along the width direction Sintering machine. 9. The method of claim 8,
Wherein the width changing portion includes a fixing portion for fixing the auxiliary scraper,
The fixing part includes a shaft hole provided at one end of the auxiliary scraper, a female screw hole provided at the front end of the scraper, a fixing bolt penetrating the shaft hole of the auxiliary scraper and fastened to the female screw hole to fasten the auxiliary scraper to the front surface of the scraper, A photolithography device of a surge hopper. 10. The method of claim 9,
Wherein the auxiliary scraper has a reinforcing portion protruding from a front surface of a widthwise outer end portion of the auxiliary scraper in contact with the grizzly bar.

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