JPH05215465A - Burner for roller kiln - Google Patents

Abstract

PURPOSE:To efficiently operate in a narrow site by arranging means for placing an undried material on a truck, stock means, means for delivering burned mat ter, and an elevator for the truck on one end of an apparatus, and arranging means for delivering a dried matter from the truck, stock means and an elevator for the truck on the other end. CONSTITUTION:A dryer 2, a roller kiln 3 and a truck stockyard 4 are stacked in three layers. An undried material molded by a molding machine is conveyed to an outlet side of a roller kiln 3 by a molded form conveyor 13, moved toward a loader 7 by the conveyor 13, and sequentially loaded on a truck 4 by the loader 7. The truck 5 is moved to an inlet of the dryer 2 by an elevator 6, and fed to the dryer 2 by a transfer unit such as a slide type chain, a pusher, a wire, etc. Burned matter output from the kiln 3 is delivered from a roller conveyor 11 to a burned matter conveyor 14, and conveyed to next step or a stock truck 9.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roller kiln (also referred to as a roller hearth) baking apparatus for drying and heating a processed product, and more particularly to a roller kiln baking apparatus useful for baking ceramic products such as tiles.

[0002]

2. Description of the Related Art A roller kiln is a furnace for continuously carrying out operations such as heating, heat treatment, firing, etc. while moving an object to be processed. It is a device suitable for manufacturing ceramic products by firing an inorganic molded product such as clay at a high temperature, and is widely used. Generally, an undried molded product molded by using a press or the like is heated and dried by a dryer, and the dried product is loaded on a trolley, placed in a storage yard, and sequentially transported to a roller kiln. The dried product loaded on the trolley is discharged from the trolley at the entrance of the roller kiln, and is baked while moving in the roller kiln toward the exit. The fired molded product is loaded on a trolley, placed in a storage yard, appropriately removed from the trolley, and sent to a subsequent process such as inspection by a conveyor or the like. That is, in the above steps, the trolley serves not only as a transport means but also as a storage means for intermediate products.

[0003]

The temperature of the roller kiln is raised,
Repeated cooling is not preferable from the viewpoint of equipment maintenance and energy cost, and it is necessary to operate continuously for 24 hours. On the other hand, the molding process of the previous process and the post-process such as inspection are not required to operate 24 hours a day. A wide trolley storage yard is required to adjust the operating time gap between the processes and to continuously operate the roller kiln. There was a contradiction that if the roller kiln was rationalized and the production capacity was increased, the required site area would become wider. Further, in the conventional factory, the roller kiln and the dryer are separately installed, and a large area is required together with the trolley storage yard. For reference, FIG. 5 shows a general layout of a firing apparatus using a conventional roller kiln.

In order to solve this problem, the present inventor has
The present invention has been completed as a result of various studies for the purpose of developing a roller kiln baking device that can efficiently operate a narrow site by integrating a dryer, roller kiln, and trolley stockyard.

[0005]

SUMMARY OF THE INVENTION The present invention is a roller kiln firing apparatus comprising a dryer, a roller kiln, a trolley for loading a processed material, and a stockyard for the trolley, and a dryer, a roller kiln, and a trolley stock. 3 yards and
It is configured by stacking in layers, and at one end, means for loading the undried material on the trolley, means for stocking the undried material, means for discharging the burned material from the roller kiln, and trolley elevator are provided. At the end, a means for discharging the dry matter from the trolley to the roller kiln, a means for stocking the dry matter, and an elevator for the trolley are arranged, and the dryer dries the undried matter loaded on the trolley. A roller kiln firing device characterized by the above.

Further, in the above-mentioned roller kiln firing apparatus, the trolley is used for loading the processed products on a plurality of shelves, and the elevator of the trolley stops the trolley at intervals of the shelves. The present invention provides a roller kiln firing device having:

Further, in order to improve the thermal efficiency of the roller kiln device, there is provided a roller kiln firing device having a circulation path for circulating the high temperature gas discharged from the roller kiln to a dryer.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail with reference to the drawings showing the embodiments. FIG. 1 is a conceptual diagram showing an embodiment of the roller kiln firing apparatus of the present invention, and FIG.
This is one of the general arrangements including this roller kiln firing device.
It is a figure which shows an example. FIG. 3 is a schematic sectional view showing the roller kiln inlet side end of the roller kiln firing device of the present invention, and FIG. 4 is a sectional view showing the roller kiln outlet side end.

The roller kiln firing apparatus of the present invention is constructed by stacking a dryer 2, a roller kiln 3 and a stockyard 4 of a truck in three layers. The stacking order is not particularly limited, but considering the operation, design, heat balance, etc., as shown in FIG. 1, the dryer 2, the roller kiln 3,
And it is preferable to use the stockyard 4 of the truck.
These may be stacked directly or may be stacked using an appropriate framework. Further, the heating method of the dryer 2 and the roller kiln 3 may be electric heating or combustion heating.

Next, regarding the embodiment example shown in the drawings,
The contents and operation of each device will be explained along the flow of the processed products.

First, the undried material molded by the molding machine 1 is
The conveyor 13 for the molded product conveys to the exit side of the roller kiln 2, that is, the one end side, and loads it on the carriage, for example, to the loading machine 7, directly by the conveyor 13.
Alternatively, it is moved via a roller conveyor or the like. on the other hand,
The empty carriage 5 is set in advance by the elevator 6 at a predetermined position. The undried items are sequentially loaded on the carriage 5 by the loading machine 7.
In order to smoothly move and load these undried substances, it is preferable to use, for example, a suction plate that sucks, lifts and moves articles, a roller chuck, a roller clutch, a turntable, or the like. In the present invention, the elevators 7 and 9 are trolleys 5
The means for raising and lowering the carriage is broadly meant, and the carriage 5 may be placed on a publicly known elevator or lift, or the carriage 5 may be directly lifted or pushed up within a guide frame that goes up and down. Positioning of the elevator 6 can be performed using a known sensor 17 or a limit switch. Further, the undried material stock means is provided for the purpose of temporarily stocking the undried material. For example, a compensator 8 having a plurality of shelves is attached, and the molding machine is continuously operated while the carriage 5 is being moved up and down. The undried material sent from No. 1 is stocked in the compensator 8 and the molding machine 1 is operated without a temporary stop. The stock undried material is sequentially discharged to the carriage 5.

The dolly 5 on which the undried material is loaded is moved to the entrance of the dryer 2 by the elevator 6, and the dryer 2 is moved by a known slide type chain 15, pushers, wires, or the like or a transfer device combining these. Sent to. The undried material is dried while moving in the dryer 2 toward the outlet while being still loaded on the carriage 5. By the way, what is important here is that the dryer 2 not only has the function of simply drying the undried material, but also has the function of stocking the carriage 5 in the dryer 2 or in the space before and after the dryer 2 if necessary. .. Although the roller kiln 3 is continuously operated for 24 hours as described above, the processing amount per unit time of the molding machine 1 and the dryer 2 is larger than that of the roller kiln 3 and is not operated for 24 hours. Therefore, from the time when the dryer 2 is stopped to the time when the operation of the dryer 2 is restarted and the dried product is carried out, the dried product required for firing in the roller kiln 3 is stocked while being loaded on the carriage 5. Sequentially,
It is fed into the roller kiln 3 operated for 24 hours and the firing is continued.

When the carriage 5 is sent to the outlet of the dryer 2, the carriage 5 is placed on the elevator 9 by a known slide chain 15, for example, together with the dried material, and reaches the position of the dispenser 10 provided on the inlet side of the roller kiln 3. Can be moved. Trolley 5
The dried product is discharged from the carriage 5 onto the roller conveyor 11 at the entrance of the roller kiln 3 by the discharging means, for example, the discharging machine 10 that uses the same principle as the loading machine 7, and is fed forward in the roller kiln 3 toward the exit. Is fired while being heated. The roller conveyor 11 may have a plurality of stages. After the firing, the fired product discharged from the roller kiln 3 is delivered from the roller conveyor 11 to the fired product conveyor 14 and conveyed to the carriage 5 for the next process or stock.
As the payout means, the above-mentioned suction plate, chuck, turntable or the like is used. On the other hand, the emptied trolley 5
It is moved to the entrance of the stockyard 4 of the carriage 5 by the elevator 9 and is moved to the stockyard 4 by the slide type chain 15 or the like. The elevator 9 that has sent the carriage 5 moves again to the outlet of the dryer 2 in order to transfer the next carriage 5. Further, the dry material stocking means continuously feeds the dry material into the roller kiln 3 while the carriage 5 is being lifted up and down, so that the dry material is temporarily stocked in the same manner as the non-dry material temporary stocking means. The compensator 12, or an alternative device, is attached.

The stock yard 4 is stocked with the trolleys 4 which are emptied after the dryer 2 stops its operation and before it is restarted. While the molding machine 1 and the dryer 2 are in operation, the carriages 5 placed in the stockyard 4 are sequentially forwarded using a pusher or the like as needed, and placed on the elevator 6 by a slide chain or the like to move. And set at a predetermined position for loading the undried material. In this way, the carriage 5 is circulated, and during this time, as a drying stand for the undried material conveyed from the molding machine 1, as a conveying means until the dried material is discharged to the roller kiln 3, and if necessary, the treated material. Serves as a stocking means.

When a plate-like material such as a tile is manufactured using the roller kiln firing apparatus of the present invention, it is preferable that the carriage 5 is one in which the processed materials are loaded on a plurality of shelves 16. This is because the loading capacity for one trolley is increased without complicating loading and unloading the loaded materials. In particular, as shown in the drawings, if the shelf 16 is of a rotatable roller conveyor type, for example, the loading machine 7 or the payout machine 1
It is preferable to mount a rotating machine for a trolley roller having a clutch attached to 0, because loading and unloading of a load can be facilitated. Along with this, the trolley lifting means needs to have means for stopping the trolley 5 at the intervals of the shelves 16, but this can be easily realized by using an appropriate sensor 17 or limit switch.

Further, in the roller kiln firing apparatus of the present invention, if a circulation path for circulating the high temperature gas discharged from the roller kiln 3 to the dryer 2 is provided, heat recovery can be achieved, which is preferable. In the roller kiln firing apparatus of the present invention, since the roller kiln 3 and the dryer 2 are arranged adjacent to or close to each other, this circulation path 18 can be installed easily and economically.

[0017]

According to the present invention, the dryer, the roller kiln, and the stockyard of the trolley are not simply put together in one place, but are three-dimensionally arranged, so that the automation and unmanned operation of the whole process can be facilitated. became. In addition, trolleys are used for transporting processed materials, stock shelves, and drying pedestals to streamline each process.
Since the one-time stocking means for the processed material is provided at a key place, no break occurs in continuous operation. When baking flat-shaped objects such as tiles, the carriage is provided with a plurality of shelves, which greatly contributes to an increase in the loading amount and rationalization of loading and unloading. By adopting the present invention,
Above all, the site was saved greatly and the operation and inspection of the equipment were easy. In addition, the devices are close to each other, and the circulation of the atmospheric gas can save the thermal energy. Further, the present invention can be widely used for firing ceramics.

[Brief description of drawings]

FIG. 1 is a conceptual diagram showing an example of an embodiment of a roller kiln device of the present invention.

FIG. 2 is a view showing an example of a general arrangement including this roller kiln device.

FIG. 3 is a schematic cross-sectional view showing the roller kiln inlet side end.

FIG. 4 is a schematic sectional view showing the roller kiln outlet side end.

FIG. 5 is a general layout of a firing device using a conventional roller kiln.

[Explanation of symbols]

1: Molding machine 2: Dryer 3: Roller kiln
4: Stock yard of bogie 5: Bogie 6: Lifter 7: Loading machine 8: Compensator 9: Lifter
10: Dispenser 11: Roller conveyor 12: Compensator 13: Conveyor for molded products 14: Conveyor for fired products 15: Sliding type chain 16:
Shelf 17: Sensor 18: Circulation route 19: Truck rail 20: Loading machine 21: Dispensing machine
22: Traverse machine 51: Molding machine 52: Dryer 53: Roller kiln 54: Truck stockyard 55: Truck 5
6: Conveyor 57: Loading machine 58: Discharge machine 59: Traverse machine

Claims (3)

[Claims] 1. A roller kiln firing apparatus comprising a dryer, a roller kiln, a trolley for loading processed materials, and a stockyard for the trolley, wherein the dryer, the roller kiln, and the stockyard for the trolley are stacked in three layers. At one end, a means for loading the undried material on the trolley, a means for stocking the undried material, a means for discharging the burned material from the roller kiln, and an elevator for the trolley are arranged, and at the other end, the trolley From the roller kiln to the dry kiln, a means for stocking the dry matter, and an elevator for the trolley are provided, and the dryer dries the undried product loaded on the trolley. Roller kiln firing equipment. 2. The trolley for loading processed products on a plurality of shelves, and an elevator for the trolley has means for stopping the trolley at intervals of the shelves. The roller kiln firing device according to claim 1. 3. The roller kiln firing apparatus according to claim 1, further comprising a circulation path for circulating the high temperature gas discharged from the roller kiln to the dryer.