KR100977793B1 - Grate bar assembly for repairing the pallet of sintering machine - Google Patents

Abstract

According to the present invention, when the great bar of the sintered ore loading cart is dropped due to wear, deformation, impact, etc. during the manufacture of the sintered ore, it is possible to easily replace the dropped great bar without using an air bore, thereby preventing loss of sintered ore and reducing leakage. The present invention relates to a great bar assembly for repairing a sinter bogie that can reduce dust concentration in gas.

The great bar assembly for repairing the sintered truck of the present invention has a head portion 32c formed in a horizontal direction at one end thereof, and a latching jaw 32d extending horizontally is formed at a lower distance from a lower portion thereof, from the head portion 32c. The first assembly member 32-1 having the inclined portion 32e inclined at a predetermined angle toward the lower portion of the extended portion, the head portion 32a is formed at one side end in a horizontal direction and spaced a predetermined distance from the lower portion. A second assembly member 32-2 having a slanted portion 32f inclined at a predetermined angle toward an upward direction to form a latching jaw 32d extending horizontally and extending upward from the head portion 32a, It consists of a fixing case 30 for wrapping and fixing the lower portion of the first and second assembly members (32-1, 32-2) and the upper cover 31 coupled to the upper portion of the fixing case (30) 1 in a state in which the assembly member 32-1 is coupled to one side fixing portion 10 'of the body. 2 is characterized in that the assembly member (32-2) is coupled in the longitudinal direction as in the first assembly member (32-1) to the other fixed portion (10 ") of the body.

Sinter, Balance, Great Bar, Assembly, Repair

Description

Great bar assembly for repairing the pallet of sintering machine

1 is a process chart showing a sintered ore manufacturing process using a conventional trolley,

2 is a side sectional view showing a structure of a sintering machine bogie;

3 is a perspective view showing the structure of the sintering machine bogie,

4 is an external perspective view of the great bar installed in the sintering machine cart,

5 is an exploded perspective view of the great bar assembly of the present invention,

6 is a side view of the first and second assembly members of the present invention;

7a-7c is a coupling state of the great bar assembly of the present invention,

8 is a use state of the great bar assembly of the present invention.

[Description of Reference Numerals]

3: surge hopper 4: upper light hopper

5: main exhaust fan 6: wind box

7: Main Burner 8: Cooler

9: bogie 10: body

11: sidewall 12: bogie wheel

13: Sintering machine rail 14: Locking pin                 

20: Great bar 20a, 20c: head part

20b: center portion 20d: fixed jaw

30: fixed case 30a: protrusion

31: upper cover 32-1: first assembly member

32-2: second assembly member 32a, 32c: head portion

32d: fixed jaw 32e, 32f: inclined portion

According to the present invention, when the great bar of the sintered ore loading cart is dropped due to wear, deformation, impact, etc. during the manufacture of the sintered ore, it is possible to easily replace the dropped great bar without using an air bore, thereby preventing loss of sintered ore and reducing leakage. The present invention relates to a great bar assembly for repairing a sinter bogie that can reduce dust concentration in gas.

In general, the process of manufacturing sintered ore transports the ore raw materials for sintering by using a trolley, while the ore raw materials loaded on the trolley are ignited by using a sintering machine ignition furnace and sucked downward by using a main exhaust fan at the bottom of the trolley. Manufacture. The trolley used in the sintering process is equipped with a plurality of grate bars in three rows on the surface of the body, and loads and moves the compounding material on top of the grate bar. 1 is a process chart showing a conventional sintered ore manufacturing process.

Ore is charged through the upper light hopper 4 and the surge hopper 3 of the light-dividing part on the surface of the great bar of the sintering machine trolley 9, which moves in series. The trolley 9 loaded with the ore moves along the sintering machine rail under the control of the upper control section. At this time, the ignition furnace 7 is operated so that the ore loaded on the trolley 9 is ignited while passing through the ignition furnace 7. Sintered ore is sintered from the top to the bottom by the lower absorption input generated by the main blower (5). Air by downward suction is discharged through the wind box (6).

After the sintering is completed, the sintered ore is transferred from the light distribution unit to the cooler 8, and the empty trolley 9 in which the sintered light is dropped is returned to the light feeding unit while rotating the orbit, and the ore raw material is charged again, and sintering proceeds.

2 and 3 show a structure of a trolley 9 conventionally used, and are a side cross-sectional view and a perspective view, respectively. On the surface of the body 10 of the trolley 9, a plurality of great bars 20 are arranged in the horizontal direction, and the ore raw material 1 is loaded on the surface of the great bars 20. The great bars 20 are usually arranged in three rows. In addition, the side wall 11 is fixed to both side ends of the trolley 9 by the locking pins 14. During the sintering process, the bogie 9 is moved by the bogie wheel 12 in contact with the surface of the sintering machine rail 13.

In the sintering process as described above, the great bar 20 constituting the bottom of the trolley 9 is in direct contact with the ore raw material 1 and also wears, deforms and / or breaks due to high temperature passing therethrough, and due to this cause, sintering During the process, as shown in FIG. 3, the great bar 20 is dropped from the trolley 9, and in particular, a large amount is dropped when passing through the curve track while moving to the rapid light distribution unit.

4 shows the structure of the great bar 20. In the figure, the great bar 20 is in a state of being in close contact with the normal state. The great bar 20 has head portions 20a and 20c formed at both ends thereof, and a fixed jaw 20d formed at the lower portion thereof, and is coupled to the body 10 of the trolley 9 to be arranged. A space is formed between each of the great bars 20 to allow movement of air between the great bars 20.

As described above, when the great bar is dropped during the operation, there is no special method for attaching the great bar 20 during the operation. Therefore, wait until the trolley (9) is rotated once, and when the trolley (9) reaches the light-dividing part, the surge hopper (4) is based on the balance that needs to be replenished. After stopping the drum feeder (not shown dormitory), which is a charging facility, to prevent ore from being loaded on two or three trucks, advance the truck for a predetermined time, empty the ore of the truck and proceed to reach the light distribution unit. When the large bar 20 dropped out after stopping the sintering machine, if the large amount is dropped out, replace the truck with a spare part, and in the case of a small amount, after leaving the locking pin 14 for fixing the great bar 20 side wall 11 After replenishing the number of the great bar 20 to the side part of the trolley which is designed to be detachable in the lower part as many as dropped, the locking pin 14 is fixed again.

This is because the ore on the trolley 9 has not yet been sintered at a position other than the light distribution part in the sintering machine so that the replacement of the great bar 20 is impossible and the work can be performed only near the light distribution part. Therefore, as the trolley 9 moves to the light distribution unit, many leaks are generated during the progress of the vehicle trolley, which results in a problem that the normal operation cannot be performed due to the deterioration of the quality and the increase of the concentration of scattering dust.

Particularly in the case of the construction of the vehicle, the concentration of dust is discharged to the maximum (MAX) for about 15 minutes after the construction of the vehicle due to the increase of air leakage, rapid change of EP internal pressure, temperature, and dust collection efficiency. After 30 minutes of completion, the emission concentration is stabilized, which leads to enormous disruption to the work.

The present invention is to solve the above problems, an object of the present invention is to easily replace the dropped great bar without using the ball bore when the great bar of the sintered ore loading bogie dropped by wear, deformation, impact, etc. during sintered ore manufacturing It is possible to provide a great bar assembly for repairing a sintered trolley which can prevent the loss of sintered ore, reduce leakage, and reduce dust concentration in exhaust gas.

In order to achieve the above object, the great bar assembly for repairing a sintered truck of the present invention includes a head portion formed in a horizontal direction at one end portion and a horizontally extending locking jaw formed at a predetermined distance from a lower portion of the portion extending from the head portion. The first assembly member having an inclined portion inclined at a predetermined angle toward the lower side, the head portion is formed at one side end in a horizontal direction, and a locking jaw extending horizontally is formed at a predetermined distance from the lower portion of the portion extending from the head portion. A second assembly member having an inclined portion inclined at a predetermined angle toward an upper end thereof, a fixing case surrounding and fixing lower portions of the first and second assembly members, and an upper cover coupled to an upper portion of the fixing case; The second assembly member is fixed to the other side of the body while the first assembly member is coupled to one side fixing portion of the body. Min and characterized in that the coupling in the longitudinal direction as in the first assembly member.

Hereinafter, the great bar assembly for repairing the sintered truck of the present invention will be described in detail with reference to the accompanying drawings.                     

The great bar assembly according to the present invention is used for repairing when the integrated great bar provided in the trolley of the conventional sintering machine is removed from the trolley due to wear, deformation and / or breakage. According to the present invention, the great bar dropped from the cart can be easily repaired, thereby improving workability and reducing the amount of dust generated.

5 is an exploded perspective view showing the structure of the great bar assembly according to the present invention. The great bar assembly is composed of four parts: the first assembly member 32-1, the second assembly member 32-2, the fixed case 30, and the upper cover 31. Here, the first assembly member 32-1 and the second assembly member 32-2 are the same as those obtained by separating and cutting the center portion 20b of the grate bar that is conventionally used. By having such a cut shape, the great bar assembly of the present invention can be easily inserted into the body 10 of the trolley 9 and is variable in the corresponding longitudinal direction and has the advantage that the length of the great bar can be adjusted.

The first assembly member 32-1 has a head portion 32c formed in a horizontal direction at one side (left) end thereof, and a locking jaw 32d extending horizontally at a predetermined distance from a lower portion thereof is formed, and a head portion ( An end portion of the portion extending from 32c has an inclined portion 32e inclined downward by a predetermined angle. The space formed between the head portion 32c and the locking step 32d is fixed to the body 10 portion of the trolley 9 in the same manner as the conventional great bar 20. At an opposite position of the head portion 32c, an inclined portion 32e having an inclined end portion is formed.

In contrast, the shape of the second assembly member 32-2 is symmetrical to the first assembly member 32-1, and the head part 32a is formed at one end (right side) in the horizontal direction and spaced apart from the bottom by a predetermined distance. The horizontally extended locking step 32d is formed, and the end part of the part extended from the head part 32a has the inclined part 32f inclined at a predetermined angle toward upward. These inclined portions 32e and 32f are in close contact with each other when the assembly is engaged. Of course, these inclined portions 32e and 32f may be arranged to be spaced apart from each other by a predetermined interval.

The fixing case 30 is used to support and fix the first assembly member 32-1 and the second assembly member 32-2 from the bottom. The shape of the fixed case 30 is preferably configured to be coupled to the lower shape of the first assembly member 32-1 and the second assembly member 32-2 by a press-fit method. In FIG. 5, the first assembly member 32-1 and the second assembly member 32-2 have a narrower width than the upper portion, and the fixing case 30 also has a narrower width than the upper portion. have. Of course, the shape of the fixed case 30 can be changed according to the shape of the first assembly member 32-1 and the second assembly member 32-2. In addition, a protruding portion 30a is formed on the upper side surface of the fixed case 30. The protrusion 30a is used for coupling with the upper cover 31 and will be described later in detail.

The upper cover 31 is coupled to the fixing case 30 and is installed on the upper sides of the first assembly member 32-1 and the second assembly member 32-2. Both ends of the upper cover 31 has a bent downward direction to be coupled to the protrusions 30a in order to maintain the coupling firmly when fixed. The coupling state of the upper cover 31 and the fixed case 30 will be described later.

6 is a side view illustrating the structures of the first assembly member 32-1 and the second assembly member 32-2. As shown, the inner end portions of the first assembly member 32-1 and the second assembly member 32-2 are inclined portions 32e and 32f, and are in close contact with each other. It has the same shape as). The inclination angles of the inclined portions 32e and 32f can be set to about 45 degrees. This structure has the advantage of facilitating the engagement of the great bar assembly of the present invention.

7a to 7c show the coupling state of the great bar assembly of the present invention. As shown in FIG. 3, when the great bar 20 is dropped from the body 10 and confirmed, the great bar 20 may be replaced in any section after passing through the light receiving unit (preferably from the point of passing the light receiving unit 10m). First, the main exhaust fan 5 is closed and the first assembly member 32-1 is inserted into the fixed case 30 as shown in FIG. 7A. At this time, since the lower form of the first assembly member 32-1 is coupled to the inner side of the fixed case 30 by a press-fit method, it is easily inserted and coupled.

After the first assembly member 32-1 and the fixed case 30 are coupled as described above, an end portion of the first assembly member 32-1 is inserted into one side fixing portion 10 ′ of the body. One side fixing portion 10 'of the body is coupled to a space formed by the head portion 32c and the locking step 32d. With the first assembly member 32-1 coupled to the body 10, the end of the second assembly member 32-2 is positioned at the other side fixing portion 10 ″ of the body at an opposite position to the first assembly member 32. -1) and insert and fix the end portion having the inclined portion 32f inside the fixed case 30. The first assembly member 32- fixed to the inside of the fixed case 30 as described above. 1) and the second assembly member 32-2 are inclined to be in close contact with each other, and operate as one great bar.

After the first assembly member 32-1 and the second assembly member 32-2 are coupled to the fixed case 30 as described above, the upper cover 31 is coupled to the upper side of the fixed case 30. . At this time, as a structure for preventing the upper cover 31 from being separated, a protrusion 30a is formed outside the upper end of the fixing case 30, and both ends of the upper cover 31 are shown in the enlarged view of FIG. As it is folded inward and combined with the protrusion 30a, it is not easily separated.

FIG. 8 illustrates the use state of the great bar assembly of the present invention, in which the assemblies 32-1 and 32-2 are inserted and fixed where the great bar 20 is removed from the trolley 9. The great bar assembly may be replaced in the case where the great bar assembly is inserted between the great bar 20 or dropped out of five or more as shown. Of course, if the number of dropouts of the great bar 20 is too large, a preliminary bogie may be used, or a great bar 20 conventionally used may be mounted using a bogie bogie.

According to the present invention, even if the great bar falls out during the sintering process, since the balance is not exchanged, it is possible to operate sufficiently, and the work preparation and the time required for the balance exchange can be greatly reduced. In addition, since it prevents a large number of leaks generated in the air bogie, it is possible to reduce the dust concentration in the exhaust gas and to increase the productivity by reducing the occurrence of fine light.

Claims (3)

In repairing the great bar coupled to the body of the bogie, A head portion 32c is formed in one side end in a horizontal direction, and a locking jaw 32d extending horizontally is formed by being spaced a predetermined distance from the lower portion, and an end portion of the portion extending from the head portion 32c is downwardly at a predetermined angle. A first assembly member 32-1 having an inclined inclined portion 32e; The head portion 32a is formed at one side end in the horizontal direction, and a locking jaw 32d extending horizontally is formed at a predetermined distance from the lower portion, and an end portion of the portion extending from the head portion 32a is upward at a predetermined angle. A second assembly member 32-2 having an inclined inclined portion 32f; A fixing case 30 surrounding and fixing lower portions of the first and second assembly members 32-1 and 32-2; An upper cover 31 is coupled to the upper portion of the fixed case 30, In a state where the first assembly member 32-1 is coupled to one side fixing portion 10 ′ of the body, the second assembly member 32-2 is attached to the other side fixing portion 10 ″ of the body. Great bar assembly for sintering truck repair, characterized in that coupled in the longitudinal direction as (32-1). The method of claim 1, Protruding portion (30a) is formed on the upper end of the fixed case 30, and when the great bar assembly is mounted on the body 10 by bending the end of the upper cover 31 to be in close contact with the protruding portion (30a) Great bar assembly for repairing sintered trucks. The method of claim 1, Great bar assembly for repairing the sintered truck, characterized in that the inclined portion (32e, 32f) has an inclination angle of 45 degrees.

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