JPH0129516Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a pallet air sealing device for a sintering machine or a baking machine.

BACKGROUND ART For example, in a sintering machine, a sintering raw material A is placed on a pallet 1 as shown in FIG. 3, and is moved over a wind box 2 to be fired.
During firing of this sintering raw material, hot air is constantly drawn from the upper surface of the pallet 1 to the window box 2 side to ensure good firing. and,
Normally, this hot air is subjected to processes such as dust removal and desulfurization, but since the negative pressure inside the wind box 2 is large, it is important to prevent the inflow of outside air from the viewpoint of exhaust power costs and the above-mentioned processing costs. That's a thing. Therefore, a sealing device 4 is provided at the sliding portion between the pallet body 3 and the window box 2 in order to prevent the inflow of outside air. This sealing device 4 is
As shown in Fig. 4, a slide bed 5 fixed to the upper end of the wind box 2 and a pallet main body 3
A compression spring 6 is provided at the lower end of the side wall 3a via a seal case 7, and a seal plate 8 is slidable on the upper surface of the slide bed 5. However, according to this, since the pallet body 3 is normally in a high temperature state, a gap a is provided between the seal case 7 and the seal plate 8 to absorb thermal expansion. However, this gap a inevitably becomes large from the viewpoint of absorbing thermal expansion reliably and machining accuracy, and has the disadvantage that perfect sealing cannot be achieved. By the way, as a solution to the above drawbacks,
Utility Application No. 58-204115 (Utility Application No. 62-19919) has been proposed. That is, in this case, a seal bar is attached to the lower surface of the side wall of the pallet main body, a lower holder is provided on the upper surface of the side wall of the wind box for holding the hollow elastic body from below, and a slide bar that slides into contact with the seal bar is fixed to the upper surface. An upper holder that holds the hollow elastic body from above is engaged with and supported by the lower holder so as to be movable in the vertical direction, and a pressurized fluid supply/discharge pipe is connected to the lower part of the hollow elastic body, and a pressurized fluid supply/discharge pipe is connected to the lower part of the hollow elastic body. By supplying pressurized fluid from the pipe, the hollow elastic body is expanded to press the slide bar against the seal bar, and the hollow elastic body is cooled by the pressurized fluid.

Problems to be Solved by the Invention By the way, according to the above structure, the supply and discharge pipe for pressurized fluid is connected to the lower part of the hollow elastic body, so when liquid is used as the pressurized fluid, air will flow into the upper part of the hollow elastic body. There are problems in that the slide bar cannot be evenly and reliably pressed against the seal bar due to remaining bubbles or bubbles generated by heating, and the hollow elastic body cannot be cooled sufficiently.

Therefore, an object of the present invention is to provide a pallet air sealing device for a sintering machine/firing machine that can solve the above-mentioned problems.

Means for Solving the Problem In order to solve the above problem, the pallet air sealing device for a sintering machine/firing machine of the present invention is provided with a hollow elastic body on the upper surface of the side wall of the wind box, and on the upper surface of the hollow elastic body. It supports an intermediate side wall to which a slide bar is attached that slides into seal bar provided on the lower surface of the pallet side wall, and a cooling fluid supply port is provided at the bottom of the hollow elastic body, and a cooling fluid discharge port is provided at the top of the hollow elastic body. It is equipped with an exit.

Function During cooling, the slide bar is pressed against the seal bar by the elastic force of the hollow elastic body. Further, the hollow elastic body is cooled by the cooling fluid flowing from the supply port to the discharge port, and at this time, the cooling fluid flows from the bottom to the top of the hollow elastic body, so that air does not accumulate inside.

Embodiment An embodiment of the present invention will be described below with reference to FIGS. 1 and 2. A seal bar 11 is attached to the lower surface of the pallet side wall 12 with a position adjustment bolt 13 so as to be movable up and down. That is, the seal bar 11
is inserted into the groove 14 formed on the lower surface of the pallet side wall 12, and the intermediate threaded portion 13a of the position adjustment bolt 13 is screwed into the nut 15 fixed to the upper wall portion 12a of the groove 14, and the position adjustment bolt 13 is inserted into the groove 14 formed on the lower surface of the pallet side wall 12. bolt 1
The tip threaded portion 13b of No. 3 is screwed onto the seal bar 11. The intermediate threaded portion 13a and the tip threaded portion 13b of the position adjustment bolt 13 are threaded in opposite directions, so that the lower surface of the seal bar 11 can be moved up and down by rotating the position adjustment bolt 13. This allows the position of the seal bar 11 to be adjusted for each pallet. Therefore, when replacing a pallet with a spare pallet, for example, the lower surface position of the seal bar on the front and rear pallets may differ due to wear, but the position The lower end surface of the seal bar 11 can be made flush with the adjustment bolt 13. Reference numeral 16 denotes a tube-shaped hollow elastic body (made of heat-resistant rubber) placed on the upper surface of the wind box side wall 17 via a heat insulating material 18, and a cooling fluid supply port 19 is provided at an appropriate location at the bottom of the tube-shaped hollow elastic body 16. At the same time, a cooling fluid outlet 20 is provided at a suitable location on the top. Note that the hollow elastic body 1
6 is attached to the side wall 17 of the wind box with a nut 21 through the supply port 19. Further, the hollow elastic body 16 is recessed on both sides so that it can be expanded and contracted in the vertical direction, and has a rigidity that can absorb the force in the pallet running direction and the width direction that occurs when the pallet is traveling with a slight strain. have. If a material or thickness that has problems with rigidity is used, it is also possible to use a guide plate or the like. Furthermore, although not shown, the supply port 1
A cooling fluid supply pipe is connected to 9, and a discharge pipe is connected to the discharge port 20, respectively. 22 is an upper flange portion 22a, an intermediate flange portion 22b,
The intermediate side wall has an F-shaped cross section and is supported by the upper surface of the hollow elastic body 16 via the intermediate flange portion 22b. A contacting slide bar 23 is attached via bolts 24. Further, the lower end of the side wall portion 22c is connected to the wind box side wall 17 in order to protect the side portion of the hollow elastic body 16 from wear caused by hot air and dust.
The intermediate flange portion 22b
Insulating materials 25 and 26 are interposed between the side wall portion 22c and the hollow elastic body 16, respectively. Note that the intermediate side wall 22 has an intermediate flange portion 22b that is connected to the outlet 20.
is fixed by a nut 27 to the hollow elastic body 16
supported on the side.

Therefore, when the sintered ore is cooled, the slide bar 23 is pressed against the seal bar 11 by the elastic force of the hollow elastic body 16, and the hollow elastic body 16
is cooled by a cooling fluid (for example, water) supplied from the supply port 19. The cooling fluid that has taken heat from the hollow elastic body 16 is discharged from the discharge port 20,
The heat is then released outside and circulated to the supply port 19 again. At this time, since the cooling fluid flows from the bottom to the top, air, that is, bubbles, do not accumulate inside the hollow elastic body 16. Note that the hollow elastic body 16 and the intermediate side wall 22 are provided over the entire length of the sintering machine. In addition, the hollow elastic body 16 has a sealed structure with a narrowed hollow part in the ore supply/discharge part, but in the middle part, from the viewpoint of ease of manufacture and maintenance, it is possible to Since it is divided into appropriate lengths and both ends are opened, the hollow elastic body 1 is inserted into the opening of the divided part.
A strip-shaped connection band (made of heat-resistant rubber) 28 is provided to connect the openings of the hollow elastic bodies 16, and adjacent hollow elastic bodies 16 are connected to each other with an adhesive. Moreover, since the hollow elastic body 16 has a shape with both ends open, even if it is made somewhat thicker and has a stronger structure, it can be smoothly expanded and contracted in the vertical direction. Note that if the elastic force of the hollow elastic body 16 alone is insufficient to press the slide bar 23 against the seal bar 11, the pressure of the cooling fluid may be increased and the additional force may be used in combination.

Effects of the invention According to the configuration of the invention described above, since the cooling fluid supply port is provided at the bottom of the hollow elastic body and the cooling fluid discharge port is provided at the top of the hollow elastic body, air does not remain inside the hollow elastic body. Therefore, the hollow elastic body can be sufficiently cooled, and
Even when pressing the slide bar against the seal bar using the pressure of the cooling fluid, sufficient pressing force can be obtained.

[Brief explanation of the drawing]

1 and 2 show an embodiment of the present invention, in which FIG. 1 is a view taken from the - arrow in FIG. 2, FIG. 2 is a partially cutaway side view, and FIGS. 3 and 4 are This shows a conventional example; Fig. 3 is a partial front view of the pallet, and Fig. 4 is a partial front view of the pallet.
The figure is an enlarged cross-sectional view of a portion of FIG. 3. 11... Seal bar, 12... Pallet side wall,
13...Position adjustment bolt, 14...Groove, 16...
Hollow elastic body, 17... Wind box side wall, 1
9... Supply port, 20... Discharge port, 22... Intermediate side wall, 23... Slide bar.

Claims (1)

[Scope of utility model registration request] A hollow elastic body is provided on the upper surface of the side wall of the wind box, an intermediate side wall is supported on the upper surface of the hollow elastic body, and a slide bar is attached to the upper surface of the hollow elastic body, and a slide bar is attached to the lower surface of the pallet side wall. A pallet air seal device for a sintering machine/firing machine, characterized in that a cooling fluid supply port is provided at the top of the hollow elastic body, and a cooling fluid discharge port is provided at the top of the hollow elastic body.