JPH0663704B2 - Sintering machine - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sintering machine capable of controlling the amount of ventilation supplied to a sintering raw material when the sintering raw material is sintered.

2. Description of the Related Art In a conventional sintering machine, as shown in FIG. 5, ventilation of the ignited sintering raw material 32 on the pallet 31 is generated in the pallet traveling direction A.
Multiple wind boxes 33 along the bottom of pallet 1 along
The wind box 33 is provided in the main duct 34 to which an exhaust fan (not shown) is connected.
The inside of the wind box 33 is connected to the sintering box 35 via a blower, and the inside of the wind box 33 is subjected to negative pressure to sinter the sintering raw material 32. In order to improve the quality of the sinter ore and the yield, when controlling the air flow, the conventional wind box 33 supply / exhaust section 3
6,37 A seal device 38 is provided at the end portion and the intermediate wind box connecting portion to separate the wind box 33 along each pallet traveling direction A, and a damper for adjusting the ventilation amount is provided in the exhaust duct 35 of each wind box 33. 39 was provided, and the ventilation volume was controlled for each wind box 33.

However, in the conventional sealing device 38, as shown in FIG. 6, the main beam 39 in the pallet width direction which is adjacent to the pallet 31 at the bottom thereof is used.
Since the flat seal plate 40 having a length extending between the lower end faces is slid, a non-permeable space 41 is generated, or the suction area is largely changed.The damper 38 contains falling mine and dust in the exhaust gas. It was not possible to use the one with good sealing property, and the accuracy of the ventilation amount control was low.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above problems and provide a sintering machine in which the amount of ventilation to the sintering raw material can be controlled with high accuracy.

Means for Solving the Problems In order to solve the above problems, the present invention is directed to an opening between main beams arranged in a direction orthogonal to the pallet advancing direction, in which an upper end is a front side in the pallet advancing direction. The main beam of is supported rotatably via horizontal pins along the main beam, and an opening / closing plate whose lower end projects below the pallet main beam is provided to supply sintering air below the pallet. Adjust the degree of opening between the main beams by the opening / closing plate by making contact with the lower part of the opening / closing plate and rotating it about the horizontal pin at a predetermined position at the upper end of the wind box where the ventilation amount of combustion air needs to be controlled. A possible guide body can be moved up and down and is arranged along the pallet advancing direction.

Action In the above-mentioned configuration, when the pallet is moved in the traveling direction and approaches the place where ventilation control of the sintering air is required, the guide body comes into contact with the open / close plate to rotate the open / close plate, and the degree of opening between the main beams is increased. Can be adjusted to control the air flow rate of the sintering air to a predetermined value. Therefore, unlike the conventional case, the accuracy of the ventilation control caused by the sealing device and the damper is not reduced, and the ventilation amount can be controlled with high accuracy. Also, by raising and lowering the guide body, it is possible to adjust the degree of opening of the opening / closing plate at the position where it is necessary to control the ventilation amount
The ventilation amount of the sintering air can be controlled arbitrarily.

Embodiment An embodiment of the present invention will be described below with reference to FIGS. 1 to 4.

As shown in FIGS. 1 to 3, this sintering machine burns open / close plates 12 provided in the openings 9 between the main beams 7 when moving in the traveling direction A of the pallet 1. The ventilation amount of the binding air is brought into contact with the guide member 17 at a position where it needs to be controlled and rotated, the opening area of the opening 9 is adjusted, and the ventilation amount of the sintering air is controlled.

The details will be described below.

In FIG. 1 to FIG. 3, 1 is a pallet for sintering the sintering raw material 3 put on the great bar 2, on a rail 5 arranged along the sintering path at the lower part of both side walls 4. An opening 9 that opens downward with a main beam 7 that has wheels 6 that travel in the lower part of the grade bar 2 and that is arranged in the width direction orthogonal to the traveling direction A and a connecting member 8 that extends along the traveling direction A. Is formed.

The reference numeral 10 designates a wind box arranged below the pallet 1 in the sintering path, and as shown in FIG. 4, an exhaust fan (not shown).
Is connected to the main duct 11 connected thereto, and the inside of the wind box 10 is made a negative pressure to supply sintering air to the sintering raw material 3.

Reference numeral 12 denotes a ventilation control opening / closing plate arranged in each opening 9 between the main beams 7 of the pallet 1, and a bracket 13 attached to the rear surface of the main beam 7 near the upper end near the front of the pallet traveling direction A.
Horizontal pin 14 in the width direction orthogonal to the pallet traveling direction A
The plate main body 15 rotatably supported via the main body 7 and the connecting plate 16 attached to the lower end portion of the plate main body 15 projecting downward from the lower end surface of the main beam 7 in the width direction of the pallet 1. Each plate body 15 between the same main beams 7 arranged in each opening 9 partitioned by the connecting member 8 between the beams 7 is connected by a connecting plate 16 and integrally rotated. To be done. When the opening / closing plate 12 is rotated in the direction of the arrow B to the fully closed position (d) indicated by the phantom line in FIG. 1, the opening / closing plate 12 can close the opening 9 in the opening 9 between the main beams 7. Formed into a shape. (Actually, it is used for ventilation control, so it will not be blocked.) 17 is arranged along the pallet traveling direction A,
A guide body that adjusts the degree of opening of the opening 9 of the opening 9 by the open / close plate 12, and at a predetermined position in the wind box 10 where it is necessary to control the amount of ventilation of the sintering air, for example, a window below the ignition section or upstream of the mine section. It is located in a box (or optionally the entire length of the sintering path). The guide body 17 is formed in a curved shape with its front and rear parts facing downward and contacts the connecting plate 16 of the opening / closing plate 12 that moves together with the pallet 1 to rotate the opening / closing plate 12 in the direction of arrow B about the horizontal pin 14. The opening degree of the opening 9 is reduced to reduce the ventilation area from the wind box to adjust the ventilation amount to the sintering raw material 3. The guide body 17 is connected via a support body 20 to an operating end of a cylinder device 19 attached to a frame 18 connecting the wind box 10 on both sides at an intermediate portion in the width direction of the wind box 10. A frame 20 is guided by a guide frame 21 erected on the frame 18 and supported so as to be able to move up and down.
22 is a bellows that covers the guide portion.

Next, the operation will be described.

When the sintering raw material 3 put on the grade bar 2 reaches the upper side of the wind box 10 (for example, the lower side of the ignition section or the upstream side of the mine ore section) where the movement of the pallet 1 is required to control the reduction of the ventilation amount, As shown in FIG. 1, the connecting plate 16 at the lower end of the opening / closing plate 12 in the fully opened position (a) is a guide body.
The opening / closing plate 12 at the front part, which is in contact with the opening 17 along the width direction, is rotated around the horizontal pin 13 in the direction of arrow B,
The degree of opening of the opening 9 by 12 is adjusted, and the amount of ventilation to the pallet 1 sucked by the negative pressure in the wind box 10 is controlled. Then, at this adjusting position (b), the connecting plate 16 slides on the upper surface of the guide body 17 to maintain this degree of openness. Further, when the open / close plate 12 passes the guide body 17, the open / close plate 12 is returned from the adjustment position (b) to the original fully open position (b) by its own weight.

According to the above-mentioned embodiment, the guide device 17 is provided by the cylinder device 19.
The opening degree of the opening / closing plate 12 of the opening 9 of the pallet 1 can be set very easily only by adjusting the upper and lower positions of the pallet 1, and the ventilation amount to the pallet 1 can be controlled. Also, instead of controlling each wind box, any guide body 17
Since the ventilation amount can be controlled at the arrangement position and the accuracy reduction due to the conventional sealing device and the damper can be eliminated, the accuracy of the ventilation control can be improved, and the quality improvement and the yield improvement of the sintered ore can be expected. Moreover, since the opening / closing plate 12 is configured to be housed in the opening 9, the wind box 10 can be supplied and
The conventional sealing device at the end of the outlet can be used as it is.
Further, since the opening / closing plate 12 is used only for ventilation control and does not block the opening, accuracy is not required, and a simple structure is sufficient, and it can be easily mounted by modifying the conventional pallet. it can. Further, by disposing a plurality of guide bodies 17 over the entire length of the sintering path, a sealing device for the connecting portion of the wind box and a damper for adjusting the ventilation amount of the wind box are not required in the related art, and the sintering path is not required. It is possible to easily and accurately control the entire ventilation amount.

EFFECTS OF THE INVENTION As described above, according to the present invention, when the pallet is moved in the traveling direction and reaches the position where the ventilation amount control is required, the guide body arranged here is provided at the opening of the pallet. The opening degree of the opening can be adjusted by contacting the lower portion of the opening / closing plate and rotating the opening / closing plate. As a result, it is possible to control the ventilation volume to the pallet, and to improve the ventilation control accuracy without reducing the accuracy of the ventilation volume control due to the conventional sealing device and damper, and to improve the quality of the sintered ore. Improvement and yield improvement can be expected.

[Brief description of drawings]

1 to 4 show an embodiment of the present invention. FIG. 1 is a vertical sectional view showing a pallet, FIG. 2 is a bottom view of the same, FIG. 3 is a horizontal sectional view thereof, and FIG. An overall side view of the binding machine, FIGS. 5 and 6 are an overall side view of a sintering machine showing a conventional example and a side sectional view showing a conventional sealing device. 1 ... Pallet, 7 ... Main beam, 8 ... Connecting beam, 9 ... Opening, 10 ... Wind box, 12 ... Opening / closing plate,
14 …… Horizontal pin, 15 …… Plate body, 16 …… Coupling plate,
17 …… Guide body, 19 …… Cylinder device.

Claims (1)

[Claims] 1. An opening between main beams arranged in a direction orthogonal to the pallet advancing direction, an upper end of the main beam on the front side in the pallet advancing direction is rotated via a horizontal pin along the main beam. An open / close plate that is movably supported and has its lower end protruding below the pallet main beam is provided at the upper end of the wind box that supplies sintering air below the pallet, and the ventilation volume of sintering air is increased. At a predetermined position where the control is required, the guide body, which abuts the lower part of the opening / closing plate and rotates about the horizontal pin, can adjust the degree of opening between the main beams by the opening / closing plate, and can move up and down in the pallet advancing direction. A sinter machine characterized by being arranged along the line.