KR101008123B1 - A Sintering Car with High Side-Wall Closing Function - Google Patents

Abstract

As iron ore raw materials loaded as sintered ore production equipment used as blast furnace raw materials are ignited and calcined during movement, in particular, a sintered trolley having excellent sealing of the bogie side walls is provided.

The sintered trolley having excellent sidewall sealing includes: a trolley body provided with great bars and having a moving wheel orbitally moving to both sides; And first side wall sealing means mounted on the sidewalls of the balance body perpendicularly to both sides of the balance body, and detachably mounted on a side plate of the balance side wall via a sealing member to seal the balance between the balance side walls. And second side wall sealing means rotatably provided at one side side plate edge of the trolley side wall and compressing the first side wall sealing means as an elastic body seated on the trolley side wall to double seal between the trolley side walls. It is.

According to the present invention, it is possible to prevent the filling material from being pinched into the gap between the sidewalls of the sintered bogie, and also to prevent the inflow of external air into the gap between the bogie side walls during air suction for raw material firing, A more improved effect of improving the manufacturing quality of the sintered ore can be obtained by preventing plastic nonuniformity due to different aeration conditions between the charging materials in the center portion.

Sintering process, sinter trolley, bogie side wall, sidewall leakage prevention device, sidewall leakage prevention device

Description

A Sintering Car with High Side-Wall Closing Function}             

1 is a perspective view showing a sintered trolley excellent side wall sealing according to the present invention

Figure 2 is an exploded perspective view showing the side wall sealing means of the inventors sintered trolley

Figure 3 is a perspective view showing a first side wall sealing means of the present invention sintered trolley

Figure 4 is a perspective view showing a second side wall sealing means of the present invention sintered trolley

5 is a structural diagram showing the bogie side wall coupling structure of the first and second side wall sealing means of the present invention sintered trolley

Explanation of symbols on the main parts of the drawings

1 .... Sintered trolley with excellent side wall sealing

10 .... Balance Body 12 .... Great Bar

14 .... wheel 20 .... bogie side wall

30..Sealing member 40 .... First sidewall sealing means

42 .. Fixing groove 46 .... Fixing bolt

50 .... elastomer 60 .... second sidewall sealing means

62 ... support protrusion 64 ... support shaft                 

66 ....

The present invention relates to a sintered trolley in which iron ore raw materials charged as sintered ore production equipment used as a blast furnace raw material in an ironworks plant are ignited and calcined during movement, and more specifically, to a sintered trolley in which iron ore raw materials are charged and the loaded raw materials are ignited and calcined. As the gap between the side walls is tightly doubled, the filling material is prevented from being caught by the gap between the side walls of the bogie, and the outside air flow into the bore side wall gap is prevented when the air is sucked for raw material firing. The present invention relates to a sintered trolley with excellent side wall sealing, which can improve the production quality of the sintered ore by preventing plastic unevenness due to different aeration conditions between the adjacent charged raw material and the charged raw material in the center part.

The sintering process of DL, Dwight Lloyd (DL), which produces sintered ore used as blast furnace raw materials in steel mills, quantitatively cuts out spectral iron ore raw materials and coke, which are heat sources, having a particle size of about 8 mm or less in an iron ore storage tank. By adding a constant moisture in the mixing drum (mixing drum), after mixing and assembling the raw material for sintering is made, it is temporarily stored in a surge hopper (surge hopper).

Next, the blended raw material discharged from the surge hopper is charged into a sintered trolley continuously moving in an endless track shape by cutting a predetermined amount by a drum feeder, and a sintered trolley passes underneath by an ignition installed at one side of the drum feeder. At this time, sparks are ignited in the coke, which is a heat source of the charged raw material, and at the same time, air is sucked from the lower side blower of the sintered bogie, and the air is sucked into the sintered surface layer portion, and the sintered bogie moves the effective image distance. Firing is performed to produce a sintered ore in a semi-molten state, and the sintered ore thus produced is transferred to a blast furnace, which is a later process.

However, in such a downward suction sintering step, since the ignition of the ignited raw material is performed only when the air in the air is sucked by the air blower, the air permeability of the charged raw material is very important. When the gap is formed between the sidewalls between the sintered trolleys, the external air flows into the raw material which is immediately fired, so that the plasticity unevenness between the raw materials charged into the sintered trolleys is generated. Since the raw material has a larger air flow volume than the raw material in the center, the firing is more smoothly, which leads to plastic nonuniformity, which in turn lowers the product quality of the sintered ore, and thus, the air gap between the sidewalls of the sintered truck is a sintering process. Will adversely affect.

That is, as the leakage increases due to the gap between the sidewalls of the sintered trolley, of course, the quality and productivity of the sintered ore decrease.

On the other hand, a number of conventional techniques are known for blocking the leakage caused by the gap generated between the side walls of the sintering cart during the sintering process, for example, Japanese Patent Application Laid-Open No. 62-187296 (name; sintering machine) In the side wall plate of a trolley | bogie, the technique which forms the seal plate and fastens it with a pin and suppresses the leakage through the side wall clearance of a sintered trolley | bogie is disclosed.

In this case, however, the air gap is suppressed by preventing the gap between the side wall portions of the bogie, but since the side wall plate is in close contact with the other side bogie side bogies due to its own weight, fine sintered ore is caught in the gap of the side wall plate structure. If there is a loss of the strength to close contact there is a problem that the sealing of the side wall plate is reduced.

Next, the Republic of Korea Utility Model Publication No. 20-0159521 (name: leak prevention device between the side wall of the sintering machine bogie) in the elastic rubber of the size that can be covered on one side of the side wall, the edge of the other side wall adjacent to the side wall A technology for suppressing leakage between the sidewalls of a trolley by installing a prevention plate has been disclosed, but in this case, the leakage preventing plate is easily damaged under a high temperature of up to 1300 ° C., which prevents long use.

In addition, in the Republic of Korea Utility Model Publication No. 20-0220213 (name: Leak prevention device of the sintered trolley), the jaw of the space in which the sealing plate can be inserted into the side plate and the left and right edges of the side plate of the sintered truck After forming a, a sealing plate (sealing plate) is inserted in the gap and the sealing plate (sealing plate) is disclosed in the sealing area between the side plates by the suction force that sucks air in its own weight and downward direction, have.

However, in this case, as described in the above Japanese Utility Model Publication, the sealing plate used as the sealing means is a structure in which the sealing plate is in close contact with another neighboring bogie side plate by its own weight. If the fine sintered ore is pinched into the gap will lose the power to close contact will cause a problem of losing the function of the sealing plate.

Finally, the Republic of Korea Patent Publication No. 2001-0105014 (name: sealing device for preventing air leakage of the sintering machine trolley), the rod member and the rod member which is rotatably installed on the base member and the base member which is installed to the outside of the side wall of the trolley A technique for suppressing leakage of the side wall portion between the bogies through a sealing means connected to the seals for sealing the gaps formed between the bogies in accordance with the trajectory path of the sintering machine bogie is disclosed. Since the structure is in close contact with the neighboring trolley side plate by the magnetic weight, as described above, when the fine sintered ore is caught, the power to close the contact loses the function of the sealing means.

In addition, the sintering machine bogie side wall portion is designed to have a slope of about 4 to 8 degrees because the upper end is designed to be wider than the lower end so that the sintered ore contracted in the sintering process is easily discharged. There was a problem in reducing the principle of close contact using.

That is, in the conventional leak prevention technology of the side wall of the sintered trolley | bogie which is known so far, since a sealing means (sealing member) (sealing plate) etc. are a form which adheres to the side wall of the adjacent trolley | bogie by weight by itself as a whole, when a fine sintered ore sticks in a clearance gap, the sealing effect will become effective. Falling is a common problem.

The present invention has been made in order to improve the various problems as described above, the object of the present invention is that the sealing material of the sintered trolley with excellent sealing of the side wall of the sintered trolley to prevent the loading of the raw material, as well as the side wall of the trolley It prevents the inflow of external air and prevents plastic unevenness due to different aeration conditions between the charged raw material adjacent to the bogie side wall and the charged raw material in the central part, thereby providing an excellent sintered bogie with side wall sealing to improve the product quality of the sintered ore. have.

As a technical configuration for achieving the above object, the present invention provides a great bar for the air suction, the balance body having a moving wheel to orbitally move to both sides;

A bogie side wall fixed perpendicular to both sides of the bogie body;

First side wall sealing means mounted on a side plate of the trolley side wall via a sealing member and detachable from each other and cooperating with each other to seal between the trolley side walls; And

Second side wall sealing means rotatably provided at an edge of one side side plate of the trolley side wall and compressing the first side wall sealing means as an elastic body seated on the trolley side wall to double seal between the trolley side walls;

Characterized in that configured to include.

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

1 is a perspective view showing a sintered trolley excellent side wall sealing according to the present invention, Figure 2 is an exploded perspective view showing the side wall sealing means of the sintered trolley of the present invention, Figure 3 is a first side wall sealing means of the sintered trolley of the present invention 4 is a perspective view showing a second side wall sealing means of the sintered trolley of the present invention, Figure 5 is a structural diagram showing a bogie side wall coupling structure of the first and second side wall sealing means of the sintered trolley of the present invention .

Figure 1 shows a sintered trolley (1) excellent in the side wall sealing of the present invention, the sintered trolley (1) of the present invention is largely the bogie body 10 and the bogie side wall 20 to determine the charging space of the charging material And the first and second side wall sealing means 40, 60 can be divided into, these components 10, 20, 40, 60 will be described in detail as follows.

First, as shown in FIG. 1, in the sintered trolley 1 of the present invention, the balance body 10 sucks air in the atmosphere through an exhaust pipe (not shown) during firing of iron ore raw material on top thereof to ignite the surface of the raw material. The great flame 12 is provided for the air suction to enable the fire of the raw material to proceed to the bottom layer of the raw material, there is a gap that is a ventilation hole for ventilation between the great bars 12.

In addition, moving wheels 14 are provided at both sides of the balance main body 10 so that the sintered trolleys 1 are continuously connected and transported in an endless track.

Next, FIG. 1 illustrates the sidewalls 20 of the sintered bogie 1 according to the present invention, wherein the sidewall 20 of the sintered bogie 1 is the length and width of the actual bogie body 10 and the sidewall 20. It is important in that the charge amount of the charging material is determined by the height of), which is fixed to both sides of the balance body 10 vertically with a fixing bolt or the like.

That is, as shown in Figure 2, the trolley side wall 20 is a plate structure in which both side plates (20a) to be in close contact with each other integrally formed as a fixing bolt fastened to the fasteners 20c at the rear Both sides of the main body 10 are fixedly installed perpendicular to the portion where the great bars 12 are not disposed.

Next, FIGS. 1 and 2 show the first side wall sealing means 40 of the sintered trolley 1 of the present invention, which is the first side wall sealing means 40 of the present invention. The first side wall sealing means 40 is detachably mounted to the side plate 20a of the trolley side wall 20 via a sealing member 30 and cooperates with each other to support the trolley side wall 20. It is configured to seal the space between them.

3 and 5 show the first sidewall sealing means 40 in more detail.

At this time, as shown in Figure 3 and 5, the sealing member 30 is at least one interposed between the first side wall sealing means 40, it is preferable to use a copper plate that is easy to shape The grooves 32 through which the fixing bolts 46 to be described later pass are integrally formed in accordance with the passing positions of the fixing bolts.

And, as shown in Figure 5, the sealing member 30 made of copper plate, after assembling the first side wall sealing means 40 as a fixing bolt 46 between the side walls, the fixing bolt 46 to seal the fine gap 46 It may be possible to insert a plurality of sheets to fit the groove 32 in the), and to be thickened in advance than the gap in advance to be fixed between the first side wall sealing means 40.

Meanwhile, as shown in FIGS. 3 and 5, the first sidewall sealing means 40 is fastened as a nut 44 through fixing grooves 42 formed in both side plates 20a of the expected vehicle side wall 20. It is composed of a first sealing plate which is fixed to the side wall plate 20a both sides of the bogie side detachably through the fixing bolt 46.

Accordingly, as shown in FIGS. 3 and 5, the bolt head 46a is inserted into the bolt groove 46b of the side wall and protrudes through the fixing groove 42 formed in the side wall 20 of the sintered trolley 1. Then, the screw portion 46c protruding inward to the side plate 20a of the side wall 20 is tightened by tightening it as a nut 44.

Therefore, as shown in FIG. 5, when the side wall 20 of the sintered trolley 1 is mounted upright on both sides of the balance body 10, the first side wall sealing means 40, which is a pair of first sealing plates, is mounted. The gap between the side walls 20 together with the sealing members 30 is to be tightly sealed.

As a result, the gap D '(FIG. 5) between the side wall 20 of the sintered trolley 1 is formed by the first sealing plate 40 of the present invention and the copper plate of the sealing member 30. It is tightly sealed and in this case external air is not sucked through the gap between the sidewalls 20 of the sintering bogie 1 during the air suction for charging firing during the movement of the sintering bogie 1, so The plastic nonuniformity generated between the side charge materials is effectively blocked.

Next, FIG. 1 and FIG. 2 show the second side wall sealing means 60 of the sintered trolley 1 having excellent side wall sealing. The second side wall sealing means 60 of the present invention is also a practical example. It is a characteristic structure of the invention.

4 and 5 show the second side wall sealing means 60 of the present invention in more detail.

4 and 5, the second side wall sealing means 60 is rotatably provided at an edge 20b of one side plate 20a of the trolley side wall 20. As the elastic body 50 seated on the side wall 20, the first side wall sealing means 40, which is the first sealing plate, is compressed to double seal between the trolley side walls 20.

In addition, the second side wall sealing means 60 is sandwiched between the support protrusions 62 which are spaced apart in the longitudinal direction along one side plate edge 20b of the trolley side wall 20, and a support shaft ( A plurality of fitting protrusions 66 through which 64 are integrally inserted are formed at one side end portion, and are closely contacted by a force pushed as the elastic body 50 seated a plurality of the side wall edge plate 20b. It consists of a 2nd sealing plate which double-closes between the bogie side walls 20, crimping | compressing the 1st side wall sealing means 40 which is the said 1st sealing plate interposed between the bogie side walls 20.

Therefore, as shown in FIGS. 4 and 5, after the first side wall sealing means 40 is mounted in the gap between the bogie side walls 20 (D ′ in FIG. 5), the elastic body 50 of the spring is mounted. After inserting into the seating groove 50a formed at the edge 20b of the side wall both side plates 20b, the fitting protrusion 66 of the second side wall sealing means 60 which is the second sealing plate through the support shaft 64 and It is integrally connected to the support protrusion 62 of the side wall edge 20b of the side wall.

As a result, as shown in FIG. 5, the second side wall sealing means 60, which is the second sealing plate, is an elastic body 50 that is a spring, and the other side portion receives the first side wall sealing means 40. The micro-gap between the first sealing plate (Fig. 5d) may be doubled again to double the sealing between the side wall 20 of the sintered trolley (1).

Therefore, according to the sintered trolley | bogie 1 excellent in the side wall sealing of the present invention demonstrated so far, the clearance gap D ', d between the side wall 20 of a trolley | bogie is made with the 1st and 2nd side wall sealing means 40 and 60 and a sealing member. As 30, it is completely sealed.

In addition, the first and second sealing means 40, 60 and the sealing member 30, which are the constituent features of the present invention, are simple in structure and easy to manufacture, and easy to remove and attach. It is also convenient to use because it can be easily installed or disassembled in 1).

As described above, according to the sintered trolley having excellent side wall sealing, the sealing material of the sintered trolley has excellent side wall sealing property, which prevents jamming of raw materials into the gap between the sintered trolley sidewalls, and also prevents inflow of external air into the gap between the side walls of the sintered trolley. By preventing the plastic non-uniformity caused by the different aeration state between the charging raw material adjacent to the side wall and the charging raw material in the center portion, it is to provide an excellent effect of further improving the manufacturing quality of the sintered ore.

While the invention has been shown and described in connection with specific embodiments so far, it will be appreciated that the invention can be varied and modified without departing from the spirit or scope of the invention as set forth in the claims below. It will be appreciated that those skilled in the art can easily know.

Claims (3)

A trolley body 10 provided with great bars 12 for air suction, and having a moving wheel 14 orbitally moving to both sides; A bogie side wall 20 fixed perpendicular to both sides of the bogie body 10; First side wall sealing means (40) that is detachably mounted to one side side plate (20a) of the trolley side wall (20) via a sealing member (30) and that cooperates with each other to seal between the trolley side walls (20); And The trolley side wall 20 is rotatably provided at the side plate edge 20b of the trolley side wall 20, and the first side wall sealing means 40 is compressed as an elastic body 50 seated on the trolley side wall 20. Second side wall sealing means (60) for double sealing the space therebetween; Sintered trolley excellent side wall sealing, characterized in that configured to include. The method of claim 1, wherein the sealing member 30 is composed of a copper plate at least one interposed between the first side wall sealing means 40, The first side wall sealing means 40 is detachable as one side side plate as a fixing bolt 46 fastened to the nut 44 through fixing grooves 42 formed on both side plates 20a of the trolley side wall 20. A sintered bed car with excellent sidewall sealing, which is fixed to (20a) and constitutes a first sealing plate for closing a gap between the bogie side walls in cooperation with an adjacently located means. According to claim 1, The second side wall sealing means 60 is sandwiched between the support protrusions 62 are spaced apart along the side plate edge 20b of the bogie side wall 20, the support shaft 64 A plurality of fitting protrusions 66 inserted through the body are formed on one side end portion, and the elastic body 50 seated on the bogie side wall side plate edge 20b is in close contact with the first side wall sealing means 40. Sintered trolley with excellent side wall sealing, characterized in that consisting of a second sealing plate to double seal between the bogie side wall (20) while pressing.

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