JPH07242328A - Truck conveying device in cooling line of fumigating device - Google Patents

Abstract

PURPOSE:To accurately stop a capsule in the specific position, and to shorten the cooling time of an article to be burnt, and to reliably maintain sealing performance between a trunk and the capsule, by providing at specific distances a plurality of pressing members to be engaged with a part to be pressed provided on the specific position of the truck on a moving member. CONSTITUTION:A moving member (a moving lever) 15 for repeatedly performing the movement forward in the conveying direction of a truck 1 by specific distances is provided along a rail, and a plurality of pressing members 24 to be engaged with parts to be pressed 28 provided on the specific positions of the trucks 1 are provided on the moving member 15 at specific distances. The pressing members 24 are provided on the moving member 15 at specific distances larger than the total length of a capsule 2 including the expansion margin in thermal expansion of the capsule 2. Thereby, when the moving member 15 is advanced, the parts to be pressed 28 of respective trucks 1 are respectively pressed by the pressing members 24, and the trucks 1 are conveyed forward one at a time with a gap between the front and rear capsules 2. Thereby, the effect that radiation of heat can be easily performed is obtained.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooling line of a smoldering apparatus used for cooling a material to be fired after smoldering treatment,
The present invention relates to a device that conveys the carriage.

[0002]

2. Description of the Related Art Capsule-type smoke-making equipment is a method in which a heat insulating material is stretched on the inner surface of a steel outer shell on the upper surface of a truck on which a baked high-temperature object to be fired is placed. Covered with a box-shaped capsule with an open bottom surface, the fumigated gas containing a large amount of hydrocarbons such as propane gas was introduced into the capsule in a state in which the outside air was blocked, and the carbon generated by thermal decomposition was covered. It is designed to adhere to the surface of the fired product.

After the smoke treatment, it is necessary to cool the inside of the capsule to a certain temperature or less by the time the capsule is removed. Usually, the trolley is laid outside the tunnel furnace with the capsule attached. It is designed to be cooled by being transferred to a line and conveyed at a low speed.

Conventionally, as a means for transporting the carriage, one pusher is provided on the carry-in side of the cooling line, and the pusher is advanced every time one carriage is carried into the cooling line to be lined up on the cooling line. The method was to push the carts forward one by one, one by one. That is, the capsules of the front and rear bogies were pushed out in a row in a state where the capsules of the bogies in front and behind abut each other.

[0005]

By the way, in the middle of such a cooling line, in order to promote cooling, a forced cooling position for circulating cooling air is provided in a cooling pipe arranged in the capsule, or As the cooling progresses, the inside of the capsule gradually leans to a negative pressure, and the outside air easily intrudes, which may cause a situation in which the carbon film on the surface of the object to be burned, which is said to "fall", may be oxidized and disappear. An injecting position of the inert gas is provided so as to inject an inert gas such as nitrogen gas into the capsule to prevent invasion of outside air.

On the other hand, when the capsule is attached to the trolley,
The outer shell thermally expands by receiving the heat of the dolly and the object to be fired. For example, when the length of the capsule is 3500 mm and the surface temperature of the outer shell is 200 ° C., it expands by about 8 mm. As in the past, when capsules are pushed out in a row with the front and rear capsules hitting each other, when the carts are transported to the forced cooling position or the inert gas injection position, only the number of carts lined up there is The expansion allowance of each capsule is accumulated and the position is displaced, for example, 8 if there are 20 trucks in a row.
Since a deviation of mm × 20 = 160 mm occurs, the forced cooling position and the inert gas injection position are set in anticipation of the deviation.

However, the capsule may have a dimensional error in manufacturing and may be plastically deformed as it is used. Therefore, if they are overlapped on the bad side, the cooling air or the inert gas supply pipe may be damaged. Even if the connection port and the corresponding connection port provided on the capsule are provided with a margin for connection, there is a risk that they will not match.
That is, there is a possibility that the supply of the cooling air and the injection of the inert gas cannot be performed.

Further, in the conventional transport system, the side faces of the front and rear capsules are in contact with each other or are in close proximity to each other, so that heat dissipation is difficult and cooling is slow.

Further, since the pressing force acts on the capsule, particularly when the wheels of the truck are heated through the tunnel furnace and the bearing is seized and the traveling of the truck becomes heavy, There is also a drawback that the trolley and the capsule are misaligned with each other and a seal portion between them is leaked, which causes the above-mentioned "climb".

[0010]

The present invention has been completed in order to eliminate the above-mentioned drawbacks, and is a box whose lower surface is opened on the upper surface of a trolley in which a fired object to be fired is placed. After performing a smoldering treatment by covering the capsule with a shape and introducing a smoldering gas into the capsule, smoldering the dolly with the capsule attached while transporting it along the rail laid outside the furnace. A transporting device for a trolley in a cooling line of a smoking device used for cooling a baked material after treatment,
A moving member that repeats a predetermined distance forward along the rail in the transport direction is provided, and a plurality of pressing members that engage with a pressed portion provided at a predetermined position of the vehicle are provided on the moving member. It is configured to be provided at regular intervals.

[0011]

The operation of the present invention is as follows. The pressing member is provided on the moving member at a constant interval larger than the entire length of the capsule including the expansion allowance when the capsule thermally expands. Then, when the moving member moves forward, each trolley is pushed individually by its corresponding pressing member, and the trolleys are transported forward by, for example, approximately one trolley with a gap between the front and rear capsules. To be done.

[0012]

According to the present invention, since each carriage is pushed and conveyed separately with a gap provided between the front and rear capsules, for example, the capsules have manufacturing errors or deformation other than thermal expansion. However, it is only necessary to consider the deviation for one unit without integrating them, and when the cart stops at the forced cooling position installed in the middle of the cooling line or the inert gas injection position, It is possible to securely connect the connection port of the supply pipe for air for use or inert gas and the corresponding connection port provided on the capsule with a slight margin on the connection. It is possible to accurately flow the cooling air to the cooling pipe that has been piped and to inject the inert gas into the capsule.

Further, since there is a gap between the front and rear capsules, heat can be easily dissipated, and the cooling time can be shortened. Further, since the structure exerts a pressing force on the trolley side, there is no risk that the trolley and the capsule will be displaced, and there is an effect that the sealability therebetween can be reliably maintained.

[0014]

Embodiments of the present invention will be described below with reference to the accompanying drawings. 1 to 6 show the first embodiment. In FIGS. 1 and 2, reference numeral 1 is a trolley for transporting a material to be fired such as a roof tile. Steel outer shell 2
A box-shaped smoldering capsule 2 having an open lower surface in which a heat insulating material 2b is stretched on the inner surface of a has its lower edge fitted into a seal portion 3 projecting from the peripheral surface of the trolley 1 to let in outside air. The smoldering gas such as propane gas is supplied to the supply port 5 provided on the side surface of the capsule 2 at the smoked position, and introduced into the capsule 2 from the filling port 6 provided on the ceiling. Then, a smoldering process is performed in which carbon generated by thermally decomposing the smoldering gas adheres to the surface of the object to be fired a. After that, the carriage 1 is transferred to the cooling line 7 provided on the side of the tunnel furnace while the capsule 2 is attached.

Next, the structure of the cooling line 7 will be described in detail. The cooling line 7 is provided with a rail 8 for arranging a plurality of carts 1 and carrying them straight, and the direction of arrow A in FIG. 1 is the carrying direction. As shown in FIG. 3, between the rails 8, a guide member 10 in which rollers 13 are respectively faced and pivotally supported by a pair of brackets 12 which are erected on a base 11 is provided in the longitudinal direction of the rail 8. A plurality of movable rods 15 are installed at appropriate intervals and have channels fixed to each other back to back. The movable rods 15 have a total length equal to the length of the rails 8. Freely supported along the reciprocating motion.

A rack 16 is attached to the lower surface of the movable rod 15 along its length, and a drive gear 17 is meshed with the rack 16 and a driven sprocket 18 fixed coaxially with the drive gear 17. And reversible motor 2
The chain 22 is hung between the drive sprocket 21 fixed to the output shaft of 0, and when the reversible motor 20 is rotated in the forward or reverse direction, the drive gear 17 and the rack 16 are engaged with each other to cause the rack 16 to move. Moving rod 1
The carriage 5 is reciprocally driven by a stroke having a length of about one carriage 1.

On the upper surface of the moving rod 15, along the length direction thereof, at a position spaced by a predetermined distance larger than the entire length of the capsule 2 including the expansion margin when the outer shell 2a of the capsule 2 is thermally expanded. Further, a pressing member 24 is provided. The gap between the pressing members 24 determines the gap between the front and rear capsules 2. A larger gap is preferable for cooling, but if it is too large, it is disadvantageous in terms of space.

The pressing member 24, as shown in FIG.
The front shape when standing is vertically long, and the upper end side is inclined forward of the rail 8 in the transport direction, and the central portion in the length direction is attached to the mounting plate 25 that is erected on the moving rod 15 by the shaft 26. It is swingably supported by, and the weight and width on the lower end side are made larger than those on the upper end side to increase the weight, and it always swings counterclockwise in the figure by its own weight. The lower end thereof is abutted on the moving rod 15 so as to take the above-mentioned standing posture.

At the center of the lower surface of the rear end of each carriage 1 in the transport direction, a pressed portion 28 that can engage with the upper end of the pressing member 24 is provided in a protruding manner.

An auxiliary moving rod 30 having the same structure as the moving rod 15 is supported beside the moving rod 15 so as to freely reciprocate along the rail 8 by the guide member 10 similar to the above. Has been done. As shown in FIG. 5, the auxiliary moving rod 30 is connected via a connecting plate 33 to the tip of a piston rod 32 of an air cylinder 31 installed with its rear side in the transport direction facing, and by moving the piston rod 32 forward and backward. It is designed to be reciprocally driven with a constant stroke.

On the upper surface of the auxiliary moving rod 30, a plurality of stop members 3 having a structure in which the pressing member 24 is reversed in the front-rear direction.
4 is provided with the same spacing as the spacing of the pressing member 24, and the abutted portion 35 engageable with the upper end portion thereof projects at a position corresponding to the stop member 34 on the lower surface of the front end of the carriage 1. It is set up. Then, the auxiliary moving rod 30 is connected to the air cylinder 31.
When the piston rod 32 advances to a rearward moving position of the trolley 1 and the movable rod 15 moves forward to the frontward moving position of the trolley 1 by driving the reversible motor 20 in the forward direction. As shown in FIG. 1, each stop member 34 on the auxiliary moving rod 30 opposes the pressing member 24 on the moving rod 15 at an interval equal to the length of the main body 1a of the carriage 1. There is.

As shown in FIGS. 3 and 5, at a position slightly ahead of the position of each stop member 34 when the auxiliary moving rod 30 has advanced to the advanced position, in the transport direction of the carriage 1, as shown in FIGS.
Relief members 37 each having an inverted U shape are fixed on the base 11 so as to straddle the auxiliary moving rod 30.
In the escape member 37, the height of the top plate 37a is
The height is such that it can be engaged with the upper end of the stop member 34 and comes to the lower surface of the abutted portion 35 of the carriage 1.

The first embodiment has the above-mentioned structure, and its operation will be described below. Before the carriage 1 is conveyed, as shown in FIG. 1, the movable rod 15 is at the retracted position behind the carriage 1 in the conveying direction, and the pressing members 24 provided on the upper surface thereof are
Each of the carts 1 arranged on the rails 8 stands upright on the rear surface in the transport direction of the pressed portion 28 of each truck 1. One auxiliary moving rod 30
Moves backward by the backward movement of the piston rod 32 of the air cylinder 31, and accordingly, each stop member 34 has its upper end 37a of the escape member 37 at its upper end as shown by the solid line in FIG. It intrudes into the escape member 37 while tilting counterclockwise around the shaft 26 with respect to the shaft 26.

When the reversible motor 20 is driven in the forward direction from this state, the moving rod 15 advances as the rack 16 advances, and the pressed portion 28 of each truck 1 presses the pressing member 2 on its rear surface.
4 is pushed separately by 4 and is conveyed forward without being obstructed by the stop member 34 escaping into the escape member 37. Since each pressing member 24 is provided with a constant interval larger than the entire length of the capsule 2 including the expansion allowance of the capsule 2, each trolley 1 is conveyed with a gap between the front and rear capsules 2. To be done.

When the abutting portion 35 on the front surface of the carriage 1 exceeds the escape member 37 at the beginning of the conveyance, the piston rod 32 of the air cylinder 31 advances and the auxiliary moving rod 30.
Is advanced to the rear side in the transport direction, whereby each stop member 34 comes out of the escape member 37, stands up by its own weight, and stands by.

When each trolley 1 is transported by one trolley, the moving rod 15 stops moving forward and the transport of the trolley 1 stops. At that time, the abutted portion 35 at the front end of each trolley 1 abuts the standing stop member 34. This is to prevent the carriage 1 from excessively moving forward due to inertial force when the carriage 1 is stopped, so that the carriage 1 is more reliably stopped at the stop position.

For the truck 1 stopped at the forced cooling position or the inert gas injection position provided in the middle of the cooling line 7, the connection ports for the cooling air and inert gas supply pipes provided at those positions. However, in correspondence with the connection port of the cooling pipe provided in the capsule 2 and the inlet port of the inert gas provided in the capsule 2, the cooling air is circulated through the cooling pipe or the inert gas is not supplied into the capsule 2. Gas is injected.

When a new carriage 1 is loaded on the rail 8 in the meantime, the reversible motor 20 is driven in the reverse direction, the moving rod 15 is driven backward to the original position, and each pressing member 24 is moved to the next carriage. 4 passes through the lower surface of the carriage 1 and near the end of its backward stroke, engages with the pressed portion 28 at the rear end of the carriage 1 and tilts clockwise while passing through the lower surface thereof, as shown in FIG. 4 (B). When it exceeds the pressed portion 28, it stands up as shown in FIG.

Then, as described above, the piston rod 32 of the air cylinder 31 is retracted to allow the stop member 34 to escape into the escape member 37, and then the reversible motor 20 is again rotated in the forward direction to advance the movable rod 15. By driving, each trolley 1 including the newly loaded trolley 1 is pushed by the pressing member 24 and conveyed forward, and thereafter, the above operation is repeated.

As described above, according to this embodiment, since each trolley 1 is pushed and conveyed separately with a gap provided between the front and rear capsules 2, for example, manufacturing error other than thermal expansion is caused in the capsule 2. Even if there are deformations or deformations, it is not necessary to integrate them and it is sufficient to consider only the deviation for one vehicle.
Is stopped at the forced cooling position installed in the middle of the cooling line or the position where the inert gas is injected, the connection port for the cooling air or inert gas supply pipe and the corresponding connection port provided on the capsule 2 Can be surely connected by only allowing a slight margin for connection, and the circulation of cooling air to the cooling pipe arranged inside the capsule 2 and the capsule 2
The inert gas can be accurately injected into the inside.

Moreover, by providing a gap between the front and rear capsules 2, heat can be easily dissipated and the cooling time can be shortened. Further, since the pressing member 24 presses the carriage 1 instead of the capsule 2, there is no possibility that the carriage 1 and the capsule 2 are displaced and the seal portion 3 leaks.

FIG. 7 shows a second embodiment of the present invention. Book second
In the embodiment, the moving rod 15 of the first embodiment is provided between the rails 8.
Instead, the upper traveling portion 42 of the endless chain 41 is disposed, and the upper traveling portion 42 is reciprocally driven by the stroke of about one vehicle 1 by the forward or reverse rotation of the reversible motor 20 connected thereto. It is supposed to be done. A pressing member 24a similar to that shown in the first embodiment is provided on the upper traveling portion 42 of the endless chain 41, which is larger than the entire length of the capsule 2 including the expansion allowance when the outer shell 2a of the capsule 2 is thermally expanded. It is provided for each position with a space between.
Other structures are the same as those in the first embodiment.

That is, as the upper running portion 42 of the endless chain 41 is driven forward, the pushed portions 28 of each carriage 1 are pushed separately by the pushing members 24a, so that the carriage 1 is moved forward and backward. It is conveyed forward with a gap therebetween, and the upward traveling portion 42 is retracted, whereby each pressing member 24a repeatedly stands on the rear surface of the pressed portion 28 of the next trolley 1.

In such a chain type,
It is also possible to adopt a method in which the pressing members are attached at regular intervals over the entire circumference of the endless chain and the upper running portion of the endless chain is intermittently moved forward only. In that case,
Since the pressing member does not have to pass under the pressed portion 28 of the carriage 1 and return to the rear surface side, it is not necessary for the pressing member to have such a function.

It is also possible to use a part of the carriage 1 as the pressed portion instead of newly attaching the pressed portion 28 to the carriage 1.

[Brief description of drawings]

FIG. 1 is a front view of a first embodiment of the present invention.

FIG. 2 is a cross sectional view thereof.

FIG. 3 is a partial cross-sectional view showing the details of the structures of a movable rod and an auxiliary movable rod.

FIG. 4 is an operation explanatory view of a pressing member.

FIG. 5 is a partially cutaway plan view showing a drive portion of an auxiliary moving rod.

FIG. 6 is an operation explanatory view of a stop member.

FIG. 7 is a front view of the second embodiment.

[Explanation of symbols]

1: Carriage 2: Capsule 7: Cooling line 8: Rail 15: Moving rod (moving member) 16: Rack 17: Drive gear 20: Reversible motor 24, 24a: Pressing member
28: Pressed portion 41: Endless chain (moving member)
a: object to be fired

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI Technical display location C04B 33/32 R F27B 9/28 F27D 7/00 A 7727-4K 15/02 Z 7727-4K

Claims (1)

[Claims] 1. A smoldering treatment is carried out by placing a box-shaped capsule with an open bottom surface on the upper surface of a truck that has been fired with a baked object to be fired and introducing a smoldering gas into the capsule. After that, the carriage of the trolley in the cooling line of the smoldering apparatus used to cool the burned material after the smoldering treatment while the trolley with the capsules deposited is transported along the rail laid outside the furnace. A moving member that repeats a predetermined distance forward along the rail in the conveying direction is provided, and the moving member is engaged with a pressed portion provided at a predetermined position of the carriage. A carriage transporting device in a cooling line of a smoking device, wherein a plurality of pressing members are provided at regular intervals.