KR101036652B1 - Sinter Pallet Having Anti-Strain Wall Structure - Google Patents

Abstract

The present invention prevents deformation of both ends of the sidewalls by leaking air generated between the sidewalls of the adjacent bogies, and also prevents the leaking air from increasing, thereby preventing the quality and productivity of the sintered ore from being deteriorated in advance. It relates to a trolley for a sintering machine having a.

The present invention is a sintering machine bogie having a side wall formed vertically on both sides of the loading portion, the grating frame portion protruding integrally with the side wall on the outer side wall side wall so as to suppress the warp in the horizontal direction of the side wall, and the grating frame It is characterized in that it comprises a pair of reinforcing plate made of the same shape as both sides of the portion detachably coupled to both sides of the grid frame portion.

Sintering machine, bogie, side wall, grating frame

Description

Sinter Pallet Having Anti-Strain Wall Structure

1 is a perspective view showing a conventional trolley for a sintering machine,

2 is a perspective view showing a side wall of a conventional sintering machine trolley,

3 is a perspective view showing a trolley for a sintering machine according to the present invention,

4 is a perspective view showing a side wall of the trolley for a sintering machine according to the present invention;

5 is a perspective view showing a reinforcing plate of the trolley for a sintering machine according to the present invention,

Figure 6 is a graph comparing the surface temperature of the present invention and the conventional bogie side wall.

* Description of symbols on the main parts of the drawing *

30, 60: cart 31: loading unit

33: side wall 33a: support frame

33b: fastening hole 34: grid frame portion

35a: first horizontal frame 35b: second horizontal frame

36a to 36e: first to fifth vertical frames 45a and 45b: through holes

41, 43: reinforcing plate 43a: contact protrusion

51: bolt 53: nut

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a trolley for a sintering machine having a deformable sidewall structure. In particular, the quality and productivity of the sintered ore is prevented by preventing the end of the sidewall from being deformed by the leakage occurring between the sidewalls of adjacent trolleys and also preventing the leakage. The present invention relates to a trolley for a sintering machine having a strain-resistant sidewall structure that can prevent this from falling.

In general, the downward suction DL (Lowd) type sintering operation that produces sintered ore, the main raw material of the blast furnace, mixes and quantifies the iron ore raw material of 8mm or less in the iron ore reservoir and the powder coke which is the heat source. The raw materials for sintering are made through mixing and assembling process by adding constant moisture in the drum and the rerolling drum.

After that, the raw material for sintering is temporarily stored in a surge hopper, and a predetermined amount is cut out by a drum feeder and charged into a sintering machine truck. do.

At this time, atmospheric air is sucked into the sintered surface layer by the suction pressure drawn from the blower, and the sintered ore is produced in the semi-melt state through the sintering process while moving the effective sintering distance, and the produced sintered ore is transferred to the blast furnace, which is a later process. .

In this case, since the sintering trolley has to deal with a large amount of iron ore, the mechanical wear load is large, so that the side wall structure is generally divided into three parts for ease of replacement work due to wear.

However, with increased environmental regulations and higher customer demands for quality, perceptions of leaks have changed. In other words, since the sidewall divided into three parts has many minute gaps, one large sidewall has been generalized worldwide and efforts have been made to reduce the leakage.

In this conventional sintering machine trolley 1, as shown in Figs. 1 and 2, the loading part 3 for loading the compounding material for sintering is formed horizontally, and is formed vertically corresponding to both ends of the loading part 5, respectively. Large sidewalls 7 are formed.

At this time, while the center portion 7a of the side wall 7 is maintained at a high temperature even as time passes according to the sintering operation, both side ends 7b and 7c of the side wall 7 having a plate shape of the trolley 10 are A gap is generated between the side ends 17b and 27c of the sidewalls 17 and 27 of the trolleys 10 and 20 adjacent to each other, thereby rapidly cooling.

That is, since the central portion 7a is in a high temperature state and cooling is performed from both side ends 7b and 7c, both of the side ends 7b and 7c are gradually deformed to the outside of the bogie 1 as the temperature deviation phenomenon is repeated.

As a result, both side ends 7b and 7c of the side wall 7 of the trolley are deformed, and a part of the side wall 17b and 27c of the trolley 10 and 20 adjacent to the trolley 1 develops into a gap, which is a leak In addition to the normal air consumed in the sintering process, an increase in air passing through the sintering machine bogie leads to a vicious cycle that further promotes cooling of the side walls 7b and 7c, resulting in deterioration of sintered ore quality and productivity. There was a problem.                         

On the other hand, the conventional technique related to the side wall of the sintering machine bogie firstly, according to the side wall plate of sintering machine bogie 62-187296 (Nov. 28, 1987) of the sintering machine bogie to form a seal plate (fastening plate) The side wall plate of a sintering machine trolley | bogie is a technique for suppressing a leak by blocking the clearance of the side wall between trolley | bogies.

Second, the leak prevention device between the side walls of the sintering machine bogie is provided on one side of the side wall, by installing a leakage preventing plate of elastic rubber of a size that can be covered at the edge of the side wall and the other side wall adjacent to the side wall of the bogie. It is a technology to suppress leakage.

Third, according to our application No. 1996-55604 anti-leakage device of the sintered trolley, after forming the jaw of the space into which the sealing plate can be inserted at the left and right edges of the sintered trolley side plate and the side plate, the gap Sealing plate (sealing plate) is inserted into the sealing plate (sealing plate) is a technology that suppresses the leakage by configuring to stick to the leakage point between the side plate by the suction force that sucks air in its own weight and downward direction.

Fourth, according to our application No. 2000-26601 sealing device for preventing leakage of sintering machine trolley, the base member is installed to the outside of the side wall of the trolley and the rod member rotatably installed on the base member and the rod member is connected to the There has been a technique of suppressing leakage of the side wall of the trolley through a sealing means for sealing the gap formed between the trolleys along the track path.

By the way, in the case of such a leak prevention device applied in the prior art has a common feature to keep the sealing means in close contact with the side of the adjacent bogie by the weight of their own, they are due to the fine sintered ore sandwiched in the structure gap due to the air leakage function There was a problem that the loss, and in particular, basically have a common lack of means for preventing the deformation of the side wall of the trolley could not be expected to effectively prevent leakage.

An object of the present invention for solving the above problems is to prevent the deterioration of both ends of the side wall by the air leakage generated between the side walls of the adjacent bogies and also to prevent the leakage of the air leakage to reduce the quality and productivity of the sintered ore It is to provide a trolley for a sintering machine having a deformation-resistant sidewall structure that can be prevented in advance.

In order to achieve the above object, the present invention is a grating for a sintering machine having a side wall formed vertically on both sides of the loading portion, the grating formed integrally with the side wall on the outer surface of the side wall so as to suppress the warp in the horizontal direction of the side wall It is to provide a sintering machine bogie having a deformable side wall structure having a frame portion and a pair of reinforcing plates formed in the same shape as both sides of the lattice frame and detachably coupled to both sides of the lattice frame portion.

In this case, the grating frame portion is formed with first and second horizontal frames protruding in the horizontal direction along the outer top and center portions of the bogie sidewalls, respectively, and the upper and lower ends of the grating frame portion inside the support frame at the bottom of the first horizontal frame and side walls, respectively. It is composed of a plurality of vertical frames perpendicular to the second horizontal frame on the outer center and both ends of the side wall in a connected state.

In addition, the pair of reinforcement plates are provided with a plurality of contact protrusions protruding in a vertical direction on one surface so as to be in close contact with the reinforcement plates of the bogies adjacent to each other to suppress the leakage of air leakage and side walls.

Therefore, the present invention as described above suppresses the deformation caused by the air leakage occurring on both sides of the side wall caused in the process of developing from one of the three-sided side wall to the conventional one side wall, the gap is generated on both side ends of the bogie side wall adjacent to each other As a result, the temperature deviation between the sidewall center and both end portions is reduced in the sintering process, thereby preventing horizontal deformation of the sidewall, thereby preventing the quality and productivity of the sintered ore from deteriorating.

(Example)

Hereinafter, with reference to the accompanying drawings will be described the configuration and action of the trolley for a sintering machine having a deformation-resistant sidewall structure according to the present invention.

Figure 3 is a perspective view showing a trolley for sintering machine according to the present invention, Figure 4 is a perspective view showing a side wall of the trolley for sintering machine according to the present invention, Figure 5 is a perspective view showing a reinforcing plate of the sintering machine trolley according to the present invention.

First, the sintering machine trolley 30 having a deformation-resistant sidewall structure according to the present invention has a support frame (2) at both ends of the loading part 31 and the loading part 31 in which a compounding material for producing sintered ore is loaded as shown in FIG. The side wall 33 is vertically engaged by a bolt or the like through the fastening hole 33b of 33a) and the upper side thereof is inclined outward by a predetermined angle.

At this time, the side wall 33 has a grid frame portion 34 protruding integrally with the side wall 33 on the outer surface of the side wall 33.

In this case, the grating frame part 34 is a first horizontal frame 35a protruding in the horizontal direction along the outer upper end of the bogie sidewall 33, and preferably the center portion of the sidewall, preferably 3/5 of the height of the side wall. A second horizontal frame 35b is formed to protrude in the horizontal direction along the bent portion.

In this case, it is preferable to form the second horizontal frame 35b twice the thickness of the first horizontal frame 35a so as to more strongly suppress thermal deformation of the side wall due to the temperature difference.

In addition, the grid frame part 34 is the first to fifth vertical frame perpendicular to the second horizontal frame 35b and the upper and lower ends are connected to the first horizontal frame 35a and the support frame 33a of the side wall, respectively. (36a to 36e) are provided.

In addition, the first to fifth vertical frames 36a to 36e have the first and fifth vertical frames 36a and 36e of the plurality of vertical frames 36a to 36e as shown in FIG. 3. Each of them is integrally formed, and the second to fourth vertical frames 36b to 36d are formed at predetermined intervals between the first and fifth vertical frames 36a and 36e.

Accordingly, the grating frame part 34 has a horizontal stress deformation in which both ends of the side wall bend outward in accordance with the temperature difference between the center and both ends of the side wall 33 generated by the leakage caused between the side walls of the adjacent trolleys during the sintering operation. The deformation of the side wall can be suppressed so as to disperse the force in the direction.

Figure 6 is a graph comparing the surface temperature of the present invention and the conventional bogie sidewall measured at the 80m effective image distance of the first sintering machine of Gwangyang Works.

Furthermore, as shown in FIG. 6, the sintering machine trolley 30 according to the present invention has a contact area with a leakage air applied to both ends of the side wall 33 through a pair of vertical frames 36a and 36e of the grating frame part 34. As a result of the expansion, both sides of the side wall are cooled by leakage air, thereby reducing the temperature deviation between the center of the side wall and both ends.

On the other hand, the grating frame 34 is a pair of reinforcing plates 41, 43 made of the same shape as both sides of the grating frame portion 34 including the side surface of the side wall 33, as shown in FIG. Lattice frame by a plurality of bolts and nuts 51 and 53 fastened to a plurality of through holes 45a and 45b formed to correspond to the first and fifth vertical frames 36a and 36e and the reinforcing plates 41 and 43, respectively. It is detachably attached to both side surfaces of the part 34.

The pair of reinforcing plates (41, 43) is formed in the vertical direction a plurality of contact protrusions (43a) having a fine depth, preferably a height of 0.5mm or less on one surface in contact with the reinforcement plate of the adjacent bogie 60 It is.

Accordingly, the side wall 33, the lattice frame portion 34 and the reinforcing plates 41 and 43 are thermally expanded by heat applied to the side walls 33 adjacent to each other during the sintering operation. The adhesion protrusions 43a are engaged with each other while keeping the crimped state, which can further suppress leakage of air from both ends of the sidewalls of the trolleys adjacent to each other, and also suppress the deformation of the sidewalls.

In addition, the reinforcement plates 41 and 43 may prevent abrasion occurring in the main body of the bogies adjacent to each other. When the reinforcement plates 41 and 43 are worn out, the plurality of bolts and nuts 41 and 43 may be disassembled. The work efficiency can be improved by simply replacing the reinforcing plates 41 and 43.

As described above, the present invention suppresses the deformation caused by the air leakage occurring at both side ends of the side wall caused by the development of the conventional three-sided side wall into one large side wall, so that gaps are generated at both side ends of the bogie side walls adjacent to each other. By preventing the temperature difference between the side wall and the side end in the sintering process to prevent the horizontal deformation of the side wall has the advantage of preventing the quality and productivity of the sintered ore due to the leakage deterioration.

The present invention has been shown and described with reference to specific embodiments by way of example, but the present invention is not limited to the above-described embodiments, and those of ordinary skill in the art to which the present invention pertains without departing from the spirit of the present invention. Various changes and modifications will be possible.

Claims (3)

In the bogie for a sintering machine having a side wall formed vertically on both sides of the loading portion, A grating frame portion protruding integrally with the side wall on the side wall outer surface so as to suppress the warp in the horizontal direction of the side wall, and a pair of reinforcement coupled to both sides of the grating frame portion to have the same shape as both sides of the grating frame portion; Including the plate, The lattice frame part includes first and second horizontal frames protruding in the horizontal direction along the outer top and center portions of the side wall of the trolley, and the upper and lower ends thereof are connected to the inner side of the support frame at the lower end of the first horizontal frame and the side wall, respectively. A trolley for a sintering machine having a deformed side wall structure, characterized in that composed of a plurality of vertical frames perpendicular to the second horizontal frame on the outer center and both ends of the side wall. delete According to claim 1, wherein the pair of reinforcing plates are in close contact with each other reinforcement plate of the bogie adjacent to each other and provided with a plurality of contact protrusions protruding in a vertical direction on one surface to suppress the leakage of air leakage and side walls Bogie for sintering machine having sidewall structure.

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