KR20120113807A - Apparatus for charging raw material in sintering machine - Google Patents

Abstract

The charging apparatus of the sintered raw material includes a chute for charging the sintered raw material on a pallet, and a scraper for reciprocating the chute phase and further removing the sintered raw material deposited on the chute from the chute. (A) an inclined plate which is inclined with respect to an upper surface of the chute, a scraper tool provided in a front end portion of the lower surface side of the inclined plate, a support frame body for supporting the inclined plate, and the inclined plate and the It has a roller apparatus which runs a support frame body on the said upper surface of the chute, and the width dimension of the chute is at least substantially the same as the width dimension of the inclined plate.

Description

Raw material charging device in sintering machine {APPARATUS FOR CHARGING RAW MATERIAL IN SINTERING MACHINE}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a charging device for a sintering raw material used when charging a sintering raw material on a pallet in a dwight Lloyd type sintering machine. It is about.

This application claims priority based on Patent Application No. 2010-056348 for which it applied to Japan on March 12, 2010, and Patent Application No. 2010-056279 for which it applied in Japan on March 12, 2010, The content is used here.

In the sintered ore manufacturing process by a Dwight Lloyd type sintering machine, a sintered raw material is cut out by a drum feeder from a raw material hopper, and a sintered raw material is charged on a pallet through a chute (also called a slipping chute).

In that case, more fuel powder (carbon source) is charged to the upper part of a raw material layer compared to a lower layer part, and a raw material particle size is charged to a lower layer part compared with an upper layer part. For example, a classification apparatus in which a sieve bar is provided with different heights toward the pallet direction is used at the tip of the chute (see Patent Document 1).

The sintered raw material contains water added at the time of granulation and has a property of being easily attached. Therefore, with operation of a sintering machine, a raw material adheres and deposits gradually on the sliding surface (upper surface) of a chute, and the smooth flow of a sintering raw material is inhibited.

In particular, at the raw material dropping point on the upper side of the chute, the dropping position of the raw material is constantly changing, so that the attached raw material is less likely to be washed away by the next raw material falling off from the top, and is particularly easy to be deposited. There is a need to remove the adhered raw material.

In addition, in the case where the classifier is provided at the tip of the chute, in order to function the classifier more effectively, each particle of the sintered raw material needs to slip off to flow over the chute and pour onto the sieve rod. However, if the flow of the sintered raw material becomes irregular, there is a possibility that the loading state of the raw material under the adhered portion is changed.

Therefore, as described in Patent Literatures 2 and 3, a scraper that slides on the sliding surface of the chute is usually installed, and it is periodically operated to scrape and remove the raw materials attached and deposited on the sliding surface.

By the way, since the raw material cut out from the drum feeder falls in the narrow range of the upper surface of a chute, this range tends to produce especially abrasion faster than the other range. In the case where a wear resistant steel sheet is used on the upper surface of the chute, there is a problem in that wear is rapid and the replacement frequency of the steel sheet is increased.

In order to solve the problem, the surface of the chute is lined with ceramic tiles to increase the wear resistance and to reduce the frequency of chute replacement.

The ceramic tile has a deformation accompanying the firing, and a deviation of about 0.2 mm is allowed as a dimensional tolerance, and the shape of each tile is slightly different. Therefore, in the chute where the sliding surface is lined with ceramic tiles, a step is easily formed in the joints between the tiles.

Therefore, when the chute with a ceramic tile is used, the scraper cannot slide directly on the sliding surface like a chute using a wear resistant steel sheet. Therefore, a roller is provided on the bottom surface of the scraper so that the scraper can smoothly ride the stepped portion of the tile seam, and the bottom surface of the scraper is lifted from the tile surface. This configuration prevents the lower surface of the scraper from contacting the stepped portion of the tile joint.

When the lower surface of the scraper is lifted off the surface of the tile to scrape off the sintered raw material, a portion remaining without scraping off the adhered sintered raw material is generated. When the remaining portion of the adhered sintered raw material is generated, the amount thereof gradually increases, causing the scraper to rise, resulting in difficulty in moving the scraper.

In the patent document 1, the groove | channel is formed in the bottom surface of a scraper about the problem of the scraper floating by such a raw material scraped off. The sintered raw material is scraped off by the corners of the grooves, and the scraped raw materials are discharged to the outside of the machine through the grooves.

However, this device is a configuration in which the scraper with the bottom surface closed is slid directly on the chute surface. As mentioned above, it is a technique which is not applicable to the scraper of the structure which slides a bottom part in the state which floated from the chute surface.

Japanese Patent Application Laid-open No. Hei 2-195193 Japanese Patent Application Laid-Open No. 2005-282915 Japanese Utility Model Publication No. 3-54398

An object of this invention is to provide the sintering raw material charging apparatus which can ensure the intensity | strength of a scraper, prevents the lower surface of a scraper from floating from the chute surface, and can operate in a stable state.

MEANS TO SOLVE THE PROBLEM This invention employ | adopts the following means in order to solve the said subject and achieve this objective.

In other words,

(1) A charging device for sintered raw materials according to one embodiment of the present invention includes a chute for charging a sintered raw material on a pallet, and the sintered raw material deposited on the chute by reciprocating the chute phase from the chute. A scraper provided with a scraper to be removed, wherein the scraper is inclined with respect to the upper surface of the chute, a scraper tool provided at a front end of the lower surface side of the inclined plate, a support frame body for supporting the inclined plate, and the support frame It has a roller apparatus provided in the sieve and which makes the said inclination plate and the said support frame body run on the said upper surface of the said chute, The width dimension of the chute is at least substantially the same as the width dimension of the said inclination plate.

(2) As for the charging apparatus of the sintering raw material as described in said (1), it is preferable that the space which continues in the width direction of the said chute and communicates with the exterior of the said scraper is formed behind the said scraper tool.

(3) The charging device for sintered raw materials according to (2), wherein the support frame body is parallel to the longitudinal reinforcing plate extending to the front side of the inclined plate, the transverse reinforcing plate extending in the width direction of the inclined plate, and the chute. It is preferable that the space is formed by having a parallel reinforcing plate extending in one direction and having an oblique cutout portion formed at the tip of the longitudinal reinforcing plate.

(4) In the sintering raw material charging device according to (1), the scraper tool and the support frame body are supported by the roller device at intervals from an upper surface of the chute, and the upper surface of the chute and the support frame. It is preferable that the space | interval between the lower end of a sieve is larger than the space | interval between the said upper surface of the said chute and the lower end of the said scraper tool.

(5) It is preferable that the inclination plate of the sintering raw material charging apparatus of said (1) is the length which the said inclination board covers the fall position of the said sintering raw material when the said scraper tool reaches | at the front end part of the chute.

(6) It is preferable that the chute of the sintering raw material charging apparatus of said (1) is equipped with a board | substrate and the some ceramic tile arrange | positioned at the surface of the said board | substrate.

(7) The sintering raw material charging device described in (6) above is adjacent to a first ceramic tile which is one of the plurality of ceramic tiles and a downstream side of the first ceramic tile as viewed in the flow direction of the sintering raw material. It is preferable that the positional relationship of a 2nd ceramic tile is the same height, or the said 1st ceramic tile protrudes with respect to the said 2nd ceramic tile.

(8) It is preferable that the charging apparatus of the sintering raw material as described in said (6) has a curved surface formed in the corner part of the said ceramic tile, and is adhere | attached on the said board | substrate using the surface of the said ceramic tile in which the said curved surface was made into an adhesive surface. Do.

(9) It is preferable that the said ceramic tile is partially provided centering around the fall point of the said sintering raw material on the said board | substrate in the charging apparatus of the sintering raw material of said (6).

According to the charging apparatus of the sintering raw material as described in said (1), since the support frame body which supports the inclined board is provided, the intensity | strength of a scraper can fully be improved when removing the sintering raw material adhering on a chute. As a result, the lower surface of the scraper can be prevented from rising from the surface of the chute and the operation can be performed in a stable state.

According to the charging apparatus of the sintering raw material described in the above (2), since the space connected to the outside of the scraper is formed at the rear of the scraper tool, the sintering raw material accumulated at the rear of the scraper tool is stored outside of the scraper through this space. Can be discharged. Therefore, the sintered raw material accumulates at the rear of the scraper tool, and it is possible to prevent the scraper from rising. As a result, charging of a sintering raw material can be performed stably.

According to the charging apparatus of the sintering raw material as described in said (3), since the support frame body has a longitudinal reinforcement board, a horizontal reinforcement board, and a parallel reinforcement board, the intensity | strength of a scraper can be improved further.

According to the charging apparatus for the raw material for sinter as described in (4) above, even when the lower surface of the scraper is operated in a floating state from the upper surface of the chute, the raw material of the sinter accumulated on the inside of the scraper tool, And the lower end of the support frame. Thereby, charging of a sintering raw material can be performed stably, without causing the problem of the rise of a scraper.

According to the charging apparatus of the sintering raw material described in the above (5), since the inclined plate covers the drop position of the sintering raw material, it is possible to operate the scraper even during the operation of the charging apparatus, and to remove the sintering raw material adhering on the chute. It becomes possible.

According to the charging apparatus of the sintering raw material as described in said (6), since the some ceramic tile is arrange | positioned at the surface of the board | substrate of a chute, the abrasion of a chute can be suppressed. This makes it possible to reduce the frequency of chute replacement.

According to the charging apparatus of the sintering raw material as described in said (7), the springing of a raw material particle does not arise and it becomes possible to supply a sintering raw material to a chute efficiently.

Here, when the surface of the curved ceramic tile is arranged on the sliding surface side, a recess is formed, and a sintered raw material flows along the recess. Therefore, according to the charging apparatus of the sintering raw material described in the above (8), since the surface of the ceramic tile having the curved surface is bonded to the substrate, the sintering raw material can flow smoothly to the downstream side.

According to the charging apparatus of the sintering raw material described in the above (9), since the ceramic tile is partially provided around the dropping point of the sintering raw material, it is possible to reduce the cost and effectively suppress the wear of the chute.

BRIEF DESCRIPTION OF THE DRAWINGS It is a schematic diagram of the charging apparatus of the sintering raw material which concerns on one Embodiment of this invention.
It is an enlarged view of the charging apparatus of the sintering raw material which concerns on embodiment of this invention.
3 is a detailed view of the scraper of FIG. 2.
4 is a detail view of the front portion of the scraper of FIG.
5 is a front view of a chute lined with ceramic tiles.
It is a figure explaining the detail of the tile joint part of the chute lined with the ceramic tile.
FIG. 7 is a plan view showing the entirety of the scraper of FIG. 2. FIG.
FIG. 8A is a cross-sectional view taken along the line AA in FIG. 7, illustrating an example of the structure of the support frame of the scraper of FIG. 2.
FIG. 8B is an arrow diagram of the BB line of FIG. 7.
FIG. 9 is a diagram illustrating a side guide device installed in the scraper of FIG. 2.

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of the charging apparatus of the sintering raw material of this invention is described in detail using drawing. The downstream side in the flow direction of the sintered raw material is referred to as the front side and the upstream side as the rear side.

As shown to FIG. 1 and FIG. 2, the charging apparatus A of the sintering raw material is equipped with the chute 4 and the scraper 15. As shown in FIG. The chute 4 is provided between the drum feeder 3 and the pallet 7 of the sintering machine, and supplies (loads) the sintered raw material cut out by the drum feeder 3 onto the pallet 7. As shown in FIG. 2, the chute 4 is provided on a support bogie 11 that travels on a pair of rails 10 placed along the conveying direction of the pallet 7.

The support trolley 11 is provided with the tilting mount 12 which supports the chute 4 so that it can be tilted. One end side of the tilting mount 12 is supported so as to be rotatable by the shaft 13 provided in the frame of the support trolley 11. Moreover, the rod of the drive cylinder apparatus 14 provided so that the rotation of the frame body of the support trolley 11 is connected to the other end side of the tilting mount 12 is connected. By stretching of this rod, the chute 4 and the scraper 15 can be adjusted to a desired inclination angle.

In FIG. 2, the front-end | tip of the chute 4 has shown the example which provided the classification apparatus 5 which has the sieve rod 6 as demonstrated in patent document 1. As shown in FIG.

By the inclination angle of the tilting mount 12 with respect to the position of this support cart 11, the distance of the chute 4 and the drum feeder 3 and the inclination angle of the chute 4 can be adjusted.

In the charging apparatus shown in FIG. 1, the sieve rod 6 is rotated so that the sintered raw material does not adhere to the sieve rod 6. In FIG. 2, although the drive device 32 etc. which drive the sieve rod 6 rotationally are provided between the tilting mount 12 and the chute 4, depending on the type of classification apparatus, The chute 4 can also be installed directly on the tilting mount 12.

The scraper 15 is arranged on the chute 4. As shown in FIG. 2 and FIG. 3, the scraper 15 includes an inclined plate 18, a scraper tool 16, a support frame 17, and a roller device 19. The inclination plate 18 is inclined with respect to the upper surface of the chute 4, and is provided through the support frame 17. As shown in FIG. The scraper tool 16 is provided in the front end part of the lower surface 18a side of the inclination plate 18. As shown in FIG. The support frame 17 supports the inclined plate 18. The roller apparatus 19 is provided in the support frame 17, and makes the inclination plate 18 and the support frame 17 run on the upper surface 4a of the chute 4.

The scraper 15 reciprocates on the chute 4 and further removes the sintered raw material deposited on the chute 4 from the chute 4. Specifically, the scraper 4 moves on the chute 4, and scrapes the sintered raw material attached to the sliding surface (upper surface) of the chute 4 by the scraper tool 16 and removes it from the chute 4. do.

In addition, as shown in FIG. 4, the roller device 19 moves the lower end portion 17a of the support frame 17 and the lower end portion 16a of the scraper tool 16 from the upper surface 4a of the chute 4. I support it at intervals. Thereby, even when the chute 4 with the ceramic tile 9 is used, the support frame 17 and the scraper tool 16 show the corners of the ceramic tile 9 as shown in FIG. 6. The scraper 15 can smoothly ride over the stepped portion d2 formed on the joint of the ceramic tile 9 while preventing collision with the metal.

As shown in FIG. 4, the scraper 15 is connected with the drive mechanism so that the scraper tool 16 provided in the inclined board 18 can be moved from the rear end of the chute 4 to the front end. In the figure, the cylinder apparatus 20 is used as a drive apparatus, and the example connected to the support frame 17 via the flexible joint which is a rod of the cylinder apparatus 20 is shown.

As shown in FIG. 2, the scraper 15 reaches the falling range L of the sintered raw material in the middle of the operation of removing the adhered raw material. Thereafter, the sintered raw material slides on the inclined plate 18 of the scraper 15 and is supplied to the pallet 7.

In order to prevent the scraper 15 from interrupting charging of the raw material even during the removal operation of the adhering raw material, the inclined plate 18 needs to have the function of the chute 4. For this reason, the inclination plate 18 is arrange | positioned inclined with respect to the chute 4, The surface is lined with the wear resistant steel plate, a ceramic tile, etc.

Next, the arrangement of the ceramic tiles 9 in the present embodiment will be described. The chute 4 is equipped with the chute main body 114 and the some ceramic tile 9 arrange | positioned at the surface of the chute main body 114, as shown in FIG.

Also in the charging apparatus of the sintering raw material 1 which provided the sieve rod 6 with the height different toward the pallet in the front-end | tip part of the chute 4 as shown in FIG. 1, as shown in FIG. The sliding surface of the chute 4 can be lined with the ceramic tile 9 to prevent abrasion of the chute 4.

The chute 4, in which the sliding surface is lined with the ceramic tile 9, is not uniform in surface compared with a chute having a steel plate as a sliding surface. In particular, as shown in Fig. 6, it is easy to form a step on the joint of the tile, and it is very difficult to smooth the whole like a steel sheet by removing the step.

If the corner portion of the tile on the downstream side is higher than the corner portion of the tile on the upstream side as viewed from the flow direction of the sintering raw material, the step d1 is formed thereon. It is thought that the raw material particle which collided with the step | step jumps there, and the flow of a raw material particle becomes irregular.

Therefore, various arrangement methods of the tiles are tried, and the first ceramic tile 9a, which is one of the plurality of ceramic tiles 9, and the first ceramic tile 9a, as viewed in the flow direction D of the sintered raw material 1, are tried. The positional relationship between the second ceramic tiles 9b adjacent to the downstream side is preferably the same height. Alternatively, as shown in FIG. 6, it is preferable that the step d2 is formed such that the first ceramic tile 9a protrudes from the second ceramic tile 9b.

Specifically, even if there is no step or no step is formed between the ceramic tiles 9 adjacent from the upstream to the downstream, the downstream side is necessarily lowered. That is, when the downward step d2 (see Fig. 6) is formed and the upward step d1 is not formed, no springing of the raw material particles occurs, so that the sintered raw material to the sieve rod 6 Adhesion was reduced to the same degree as having used the steel plate.

The ceramic tile 9 has the deformation accompanying baking, and in many cases, the shape of each tile differs slightly. In addition, a deviation of about 0.2 mm is allowed as a dimensional tolerance. For this reason, it is easy to form a level | step difference in the seam between tiles only by arranging a tile.

Therefore, before adhering the ceramic tile 9 to the tile substrate 112 with the adhesive 113, it is necessary to arrange the tiles in advance to confirm the degree of occurrence of the step.

If an upward step d1 on which the downstream side protrudes is formed, it is replaced with another tile so as to eliminate the step or to form a downward step d2 on which the upstream side protrudes even if the step is formed.

Further, even when various rearrangements are performed, when an upward step remains or when the step is minute, the protruding portion is polished and removed to remove the step. In that case, if the surface roughness of the surface of the ceramic tile 9 increases with polishing, the sintered raw material 1 tends to adhere to the ceramic tile 9, and therefore the same surface as that of the original ceramic tile 9. It is necessary to finish with roughness.

Most of the ceramic tiles have a shape in which R is formed at a corner portion 9c of one surface thereof by removing the angle. In that case, when the surface in which R is formed is arranged as the sliding surface side of a raw material, a recess will arise in a joint part. Even if the part is filled with the adhesive, the adhesive wears immediately, and a recess is formed.

Such a recess becomes a factor which inhibits uniform flow of a raw material because a raw material becomes easy to flow along a recess. Therefore, as shown in FIG. 6, it is preferable to adhere to the tile substrate (substrate) 112 using the surface of the ceramic tile 9 in which R is formed as an adhesive surface.

In the case where the tiles are attached in a lattice shape, the seams are continuous, and raw material particles easily flow along the seams. As a result, the particle size distribution of the raw material at the pallet position corresponding to the joint part is disturbed, and the quality of the sintered ore is not constant. Therefore, as shown in FIG. 5, it is preferable to arrange | position each tile in a zigzag lattice shape so that the seam of a tile may not continue.

The chute 4 need not line all of the sliding surfaces with the ceramic tiles 9. That is, it is preferable that the ceramic tile 9 is partially provided centering on the fall point of the sintering raw material 1 on the tile substrate 112. Specifically, you may line only the area | region where the sintering raw material 1 which fell from the drum feeder 3 collides with the chute 4, and its vicinity. Even in this case, the effect of using the ceramic tile 9 is sufficiently obtained. Figure 5 shows such an example.

As the installation method of the tile substrate 112 to which the ceramic tile 9 is adhered, the upper end side is located outside the dropping position of the raw material, so that the bolt 115 is inserted from the surface side (see FIG. 5) to thereby provide the tile substrate 112. Can be fixed to the chute main body 114. The lower end part side of the ceramic tile 9 is fixed by the bolt 115 etc. from the chute main body 114 back surface side.

Hereinafter, the effect at the time of using the ceramic tile 9 in this embodiment is demonstrated.

The raw material falling portion of the 3.5-meter wide chute was lined with ceramic tiles over a width of 60 cm in the raw material flow direction. Alumina ceramic tiles of 100 × 100 × 10 t (mm) were used.

The tiles were arranged without gaps in a zigzag lattice shape as shown in FIG. 5.

As the present embodiment, the chute 4 in which the ceramic tiles 9 are rearranged in various ways so that an upward step d1 is not formed is used.

As a comparative example, the tiles were simply arranged without considering the direction of the step, and a chute in which 12 upward steps d1 were formed was used.

Using the chute lined with the ceramic tile 9 as mentioned above, the sintering raw material was charged to the pallet of the Dwight Lloyd type sintering machine by the charging apparatus which has the classification apparatus shown in FIG.

As a result, when the chute of the comparative example was used, since the raw material adhered to the sieve rod of a chute 14 days later, and the sieve rod of 3 mm diameter became 10 mm diameter, the operation which removes a raw material was needed. In contrast, when the chute of the present embodiment was used, it was 70 days later that the work of removing the adhered raw material was necessary.

Next, the inclined plate 18 will be described. As shown in FIG. 2, the inclined plate 18 is disposed inclined with respect to the chute 4 so as to widen the gap with the chute 4 toward the upstream side.

It is preferable that the swash plate 18 is a length covering the falling range (fall position) of the raw material 1 for sinter when the scraper tool 16 of the scraper 15 reaches the position of the front end of the chute 4 . In the present embodiment, the vertical width along the traveling direction (direction in which the sintered raw material flows) of the inclined plate 18 is formed to a width that satisfies the condition.

7 shows a plan view of the entire scraper 15. It is preferable that the width dimension L1 of the chute 4 is at least substantially the same as the width dimension L2 of the inclined plate 18, and in this embodiment, the width dimension L1 of the chute 4 and the width dimension L2 of the inclined plate 18 are equivalent. Do. Thereby, the scraper 15 is a shape extended in the horizontal direction, and the horizontal width of the inclination plate 18 is the width which can cover the width of the chute 4.

In the example of FIG. 7, the cylinder apparatus 20 is arrange | positioned at two places on both sides, the guide rod 21 is arrange | positioned at the two places inside, and each tip is connected to the support frame body 17. As shown in FIG. In addition, five places of two sets of roller devices 19 are provided on the support frame body 17. This configuration enables the scraper 15 to smoothly reciprocate on the chute 4.

In addition, as shown in FIG. 9, the guide roller 34 is provided in the side part of the support frame 17 of the scraper 15 in the downward and horizontal direction through the bracket 33. As shown in FIG. The guide rails 35 fixed to the chute 4 side on the tilting mount 12 are brought into contact with each other to guide the left and right guides of the scraper 15 and prevent injury.

As shown in FIG. 4, the scraper tool 16 for scraping off the adhered sintered raw material is fixed to the front-end | tip part of the inclination board 18. As shown in FIG. This scraper tool 16 is formed using a steel material having wear resistance, has a rectangular rod shape in cross section, and replaces the base member 22 fixed to the lower surface of the inclined plate 18 using bolts or the like. It is possible to install.

In addition, it is preferable that the inclination angle of the inclination plate 18 with respect to the chute 4 surface is formed as small as possible. However, since the scraper 15 has a shape extending laterally, if the inclination angle is too small, the width of the reinforcing plate cannot be sufficiently taken. As a result, in particular, sufficient strength cannot be secured in the central portion in the lateral direction, and the central portion may float, and thus, sufficient removal effect may not be exhibited. Therefore, in consideration of this point, it is necessary to determine the inclination angle of the inclination plate 18 and the structure of a reinforcement board. Specifically, the angle formed by the inclined plate 18 and the chute 4 is preferably about 5 ° to about 35 °.

8A and 8B show an example of the structure of the support frame 17.

FIG. 8A is a cross-sectional view taken along the line A-A in FIG. 7 and shows the structures of both ends of the support frame 17 and four internal portions.

As shown in Figs. 8A and 8B, the support frame 17 has a plurality of reinforcing plates arranged horizontally and horizontally. In the present embodiment, the plurality of reinforcement plates have a front end plate (long reinforcement plate) 23, a center horizontal plate (lateral reinforcement plate) 25, and a horizontal plate (parallel reinforcement plate) 26.

The front end plate 23 extends to the front side of the inclined plate 18 along the flow direction of the sintered raw material 1. The center horizontal plate 25 extends in the width direction of the chute 4 and the inclined plate 18. The horizontal plate 26 extends in the direction parallel to the chute 4. Further, the rear end plate 24 is disposed on the rear side of the center transverse plate 25 with the center transverse plate 25 therebetween. Such a plurality of reinforcing plates are suitably configured to support the inclined plate 18, and the lower surfaces of the plurality of reinforcing plates are open. The front end plate 23, the rear end plate 24, and the center horizontal plate 25 may be disposed perpendicularly to the chute 4.

In addition, the center transverse plate 25 is provided with a rod of the cylinder device 20 and a tip of the guide rod 21.

8B shows the structure of the position where the roller apparatus 19 is installed in the B-B line arrow road of FIG. In this example, the roller apparatus 19 is provided in the horizontal board 26 fixed between the front part longitudinal plates 23. As shown in FIG.

Due to such a structure, a space 28 is formed on the inner side (back side) of the scraper tool 16 by the inclined plate 18 and the transverse direction is partitioned by the front end plate 26.

In this embodiment, in order to ensure the lateral connection of each space 28, the oblique notch part 27 is formed in the front end part of the front end plate 23. As shown in FIG. By this notch 27, as shown in FIG. 4, the clearance 29 is formed between the front end of the front end plate 23 arrange | positioned at both ends, and the back surface of the scraper tool 16. As shown in FIG. do. The gap 29 forms a space in the rear of the scraper tool 16 that is continuous in the width direction of the chute 4 and communicates with the outside of the scraper 15.

The front end plate 23 of the support frame body 17 is formed such that a gap 31 having a height b is formed between the sliding surface of the chute 4 and the lower end of the support frame body 17 by the roller device 19. Supported. At this time, this height b is set so that it may become larger than the height a of the space | interval 30 formed between the lower end part of the scraper tool 16, and the sliding surface of the chute 4, as shown in FIG.

As mentioned above, in the scraper 15, the space | interval 30 is formed between the lower end part of the scraper tool 16, and the sliding surface of the chute 4, and the space 28 is also formed in the back surface side of the scraper tool 16. As shown in FIG. Formed. With this configuration, when removing the sintered raw material attached to the chute 4 by the movement of the scraper 15, a part of the raw material necessarily has a space (on the back surface side (inner side) of the scraper tool 16). 28). In addition, after the scraper 15 advances to the tip of the chute 4, the scraper 15 retreats while scraping the remaining raw material by the corner portion on the back side of the scraper tool 16 even during the return process.

For this reason, as the operation | movement frequency of the scraper 15 increases, the inside of the support frame 17 is filled with the sintering raw material 1. If the sintered raw material 1 is not discharged from the inside of the support frame 17, the scraper 15 will float after being completely filled with the sintered raw material 1. In this case, since the scraper 15 is restrained by the guide rail 35, the movement of the scraper 15 becomes difficult later, and the scraping operation cannot be sufficiently performed.

With respect to such a problem, in the present embodiment, a space 28 that is continuous in the width direction of the chute 4 inside the scraper tool 16 and connected to the outside of the scraper 15 is formed and the chute ( The spacing b between the sliding surface of 4) and the lower end of the end plate was formed larger than the spacing a between the lower end of the scraper tool 16.

With this configuration, the sintered raw material 1 is sequentially stored in the internal space 28 by the operation of the scraper 15. When the sintering raw material 1 gathers to some extent and the weight thereof increases, the sintering raw material 1 newly introduced into the scraper tool 16 moves along the inner side of the scraper tool 16. And through the gap 29 formed by the cutouts 27 of the front end of the front end plate 23 and the gap 31 between the front end plate 23 and the chute 4 surface to the outside of the scraper 15. Discharged. At this time, the end of the cutout 27 is inclined and connected to the gap below the front end plate 23, so that the sintered raw material 1 can flow smoothly.

For this reason, the inside of the support frame 17 is not filled with the sintering raw material 1, and the movement of the scraper 15 is performed smoothly.

In order to confirm the effect of the charging apparatus of the present embodiment described above, at the time of charging the sintered raw material, scraping of the sintered raw material adhered on a chute of 350 cm in width regularly lined with a ceramic tile using a scraper was performed. Was carried out.

In the apparatus of the present embodiment, a gap of 2 mm is formed between the lower end of the scraper tool and the upper surface of the chute, and a gap of 6 mm is formed between the lower end of the end plate (front end plate and rear end plate) and the upper surface of the chute. Further, inside the scraper tool, the front end portions of the end plates disposed inside the support frame body and the side plates disposed on both sides are obliquely cut to form a continuous space.

As a result, the sintered raw material accumulated to some extent in the inside (rear) of the scraper with operation, but it was not until the inside was filled with the raw material, and operation could be continued without a problem.

On the other hand, as a comparative example, the interval between the lower end of the scraper tool and the upper surface of the chute and the interval between the lower end of the front end plate 23 and the upper surface of the chute 23 are both set to 2 mm, and the cutout is provided at the front end of the front end plate. A scraper was used so as not to form and to form a space continuous in the width direction of the chute on the back surface side of the scraper tool. In this case, 60 days after the operation, the inside of the scraper was filled with the raw material, clogging occurred, and the movement of the scraper became difficult.

According to the present invention, there is no problem of floating of the scraper due to the scraped sintered raw material, and the sintering operation can be performed in a stable state. Therefore, a large industrial effect can be expected by implementing the present invention.

1: sintered raw material
2: raw material hopper
3: drum feeder
4: Suit
5: classification device
6: sieve rod
7: pallet
8: raw material layer
9: ceramic tile
10: rail
11: support balance
12: tilting mount
13: shaft
14: drive cylinder device
15: scraper (total)
16: scraper tool
17 support frame
18: inclined plate
19: roller device
20: cylinder device
21: guide rod
22: base member
23: Front end plate
24: rear end plate
25: center plate
26: horizontal plate
27 cutout
28: space
29: gap
30: interval
31: interval
32: sieve rod driving device
33: bracket
34: guide roller
35: guide rail
112: tile substrate
114: suit body
a: height of the gap 30
b: height of the gap 31
d1: upward step
d2: step down

Claims (9)

A chute for charging a sintered raw material onto a pallet,
And a scraper for reciprocating the chute and removing the sintered raw material deposited on the chute from the chute,
The scraper is provided on an inclined plate provided to be inclined with respect to an upper surface of the chute, a scraper tool provided on a front end of a lower surface side of the inclined plate, a support frame body for supporting the inclined plate, and the support frame body. It has a roller device which makes a slope plate and the said support frame body run on the said upper surface of the said chute,
The width | variety dimension of the said chute is at least substantially the same as the width dimension of the said inclination board, The charging apparatus of the sintering raw material. The charging device for the sintered raw material according to claim 1, wherein a space which is continuous in the width direction of the chute and communicates with the outside of the scraper is formed behind the scraper tool. The said support frame body is a longitudinal reinforcement board extended to the front side of the said inclination board, the horizontal reinforcement board extended in the width direction of the said inclination board, and the parallel reinforcement board extended in the direction parallel to the said chute. ,
An oblique cutout portion is formed at the tip of the longitudinal reinforcing plate, whereby the space is formed. The said scraper tool and the said support frame body are supported by the said roller apparatus at intervals from the upper surface of the chute,
An interval between the upper surface of the chute and the lower end of the support frame body is larger than the interval between the upper surface of the chute and the lower end of the scraper tool. The charging device for the sintered raw material according to claim 1, wherein when the scraper tool reaches the front end of the chute, the inclined plate covers the drop position of the sintered raw material. The charging apparatus for the sintered raw material according to claim 1, wherein the chute includes a substrate and a plurality of ceramic tiles arranged on a surface of the substrate. The positional relationship of Claim 6 with which the 1st ceramic tile which is one of the said ceramic tiles, and the 2nd ceramic tile adjacent to the downstream side of the said 1st ceramic tile are the same from the flow direction of the said sintering raw material. A device for charging a sintered raw material, wherein the first ceramic tile is raised or protrudes relative to the second ceramic tile. The method of claim 6, wherein a curved surface is formed in the corner portion of the ceramic tile,
An apparatus for charging a sintered raw material, characterized in that the surface of the ceramic tile on which the curved surface is formed is bonded to the substrate as an adhesive surface. The charging device for the sintered raw material according to claim 6, wherein the ceramic tile is partially provided around a dropping point of the sintered raw material on the substrate.

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