JP2003004357A - Steel belt type cooler - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a steel belt type cooler capable of cooling a material efficiently and also simplifying cleaning of a machine, by combining a steel belt with a cooling drum so that space is saved. SOLUTION: In the steel belt type cooler comprising the steel belt 4 stretched between pulleys 2 and 3 and the cooling drum 1 being in contact with the steel belt 4, the pulleys 2 and 3 are disposed so that the angle of contact of the steel belt 4 with the cooling drum 1 is 180 degrees or more, while the cooler is constituted so that the back sides of the steel belt 4 and the cooling drum 1 are cooled.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a steel belt type chiller, and more particularly to a steel belt type chiller capable of efficiently cooling a material in a small space.

[0002]

2. Description of the Related Art Conventionally, in the case of powder coating, plastic mixing processing, toner, ink pigments, titanium dioxide, cosmetics, food processing, etc., when processing the material into particles or powder, a high temperature material having fluidity is used. A method in which the material is cooled and solidified and then crushed by a crushing device is widely used, and various cooling machines are used to achieve the cooling and solidification of this material.

As this cooler, a synthetic resin belt type cooler in which a synthetic resin belt is placed along a cooling drum and a material is sandwiched between the cooling drum and the belt, or two endless belts are opposed to each other, There has been proposed a steel belt type cooling machine or the like in which the material is sandwiched by being driven at a constant speed, and is moved and cooled by driving a belt.

[0004]

By the way, in the above-mentioned conventional synthetic resin belt type cooling machine, the material to be supplied is sandwiched between the synthetic resin belt having poor thermal conductivity and the cooling drum. Therefore, the cooling of the material cannot be expected to be cooled from the belt side, and since only one side of the drum can be cooled, only a low cooling efficiency can be obtained. When changing the material to be cooled or changing the color of the material, such as color toner, the previous material has adhered to the surface of the belt or has entered the inside of the belt. There is a problem in that it cannot be completely removed, and cleaning of the belt takes time and labor.

On the other hand, in the steel belt type cooler, since the material is sandwiched by the steel belts having good heat conduction from both sides, it is possible to cool the sandwiched material from both sides at the same time and obtain a high cooling effect. On the other hand, since the endless steel belt becomes long, the equipment becomes large, and the installation area of the machine equipment becomes particularly large, so it is suitable for mass production factories, but small scale factories and small lots of various types are produced. There was a problem that it was not suitable for the factory.

In view of the above problems of the conventional cooling machine, the present invention can cool the material efficiently by combining the steel belt and the cooling drum so as to save space. It is an object of the present invention to provide a steel belt type cooler that can be easily cleaned.

[0007]

In order to achieve the above object, a steel belt type cooling machine of the present invention comprises a steel belt stretched between pulleys and a cooling drum in contact with the steel belt. In the cooling machine, the pulleys are arranged so that the steel belt contacts the cooling drum at an angle of 180 degrees or more, and the steel belt and the back surface of the cooling drum are cooled. And

In this steel belt type cooling machine, pulleys are arranged so that the steel belt contacts the cooling drum at an angle of 180 degrees or more, and the back side of the steel belt and the cooling drum is cooled. Therefore, the material sandwiched between the steel belt and the cooling drum can be simultaneously cooled from both sides over a long process, and the cooling efficiency can be improved.

In this case, the return path side of the steel belt at the position of the cooling drum can be guided by a belt guide arranged along the outer circumference of the cooling drum with a predetermined space. .

Thus, the guide of the steel belt on the return path side can be performed easily and arbitrarily, and the size of the device can be reduced.

Further, the returning path side of the steel belt at the position of the cooling drum may be guided by the guide roller.

This makes it possible to smoothly transfer the steel belt and prevent damage due to abrasion of the steel belt.

Further, a pressing roller for pressing and rolling the material existing between the cooling drum and the steel belt can be provided on the back surface of the steel belt.

As a result, even if the raw material has a high viscosity, it can be efficiently rolled, and the material is rolled to a desired thickness between the cooling drum and the steel belt, so that a sufficient cooling effect can be obtained. Obtainable.

Further, the diameter of the cooling drum can be made larger than the diameter of the pulley.

As a result, it is possible to secure a long contact distance between the steel belt and the cooling drum with a simple structure, and it is possible to reduce the size while improving the cooling efficiency.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a steel belt type cooling machine of the present invention will be described below with reference to the drawings.

1 to 3 show an embodiment of a steel belt type cooling machine of the present invention. In the figure, 1 is a cooling drum having a required diameter and width larger than the diameters of pulleys 2 and 3 on which a steel belt 4 is stretched and having a hollow inside, and preferably at least the outer peripheral surface. Is a metal having good thermal conductivity, chemical resistance, heat resistance, etc., which is not particularly limited, for example, a shaft formed by forming a sealed drum shape from a stainless steel plate or the like and projecting at both ends. 11, 11
Is rotatably supported on the main body frame F via bearings 12 and 12, and cooling water is supplied from a water supply pipe 14 connected to the one shaft 11, and a plurality of cooling water are disposed on the inner end side of the shaft 11. Cooling water is jetted from the nozzles 91, 91 toward the inner peripheral surface of the sealed cooling drum 1, and a water absorption pipe 16a is connected to the other shaft 11 to form an inner bottom portion of the cooling drum 1. The cooling water collected in 1 is absorbed by the water absorption pipe 16a, and is drained to the outside of the cooling drum 1 through the water distribution pipe 16b connected to the outer end of the shaft 11.

In addition, swivels 13 and 15 are provided at the connecting portions of the shafts 11 and 11 to the water supply pipe 14 and the drain pipe 16b in order to enable the shafts 11 and 11 to rotate.

If necessary, the section in which the material is transferred by being sandwiched between the cooling drum 1 and the endless steel belt 4 in the main body frame F is sealed, and inside the sealed main body frame F. Blow in dehumidified air,
As a result, the cooling effect of the material is improved by the cooling effect of the material due to the direct contact with the cooling drum 1 and the steel belt 4, and the dew condensation preventing effect and the cooling effect by the dehumidified air. Even if the temperature is raised by about 10 ° C., the cooling effect can be made equal or higher.

The steel belt 4, like the cooling drum 1, is a metal having good thermal conductivity, chemical resistance, heat resistance, etc., but is not particularly limited. It is formed in an endless shape, and its width is preferably equal to the width of the cooling drum 1. On the back side of both ends of this endless steel belt, the same as the steel belt used in the conventional steel belt type chiller is used. Further, the guide belts 41, 41 are integrally formed by adhesion, baking, etc., and the steel belt 4 is stretched so that the guide belts 41, 41 are hung between the pulleys 2, 3.

The pulleys 2 and 3 are, as shown in FIG.
The shafts 21, 21 and 31, 31 are respectively attached to the bearing 2
It is rotatably supported by the main body frame F via 2, 22 and 32, 32.

The relationship between the steel belt 4 stretched between the pulleys 2 and 3 and the cooling drum 1 is as shown in FIG.
After cooling the material supplied between at least one of the pulleys, for example, the steel belt 4 and the cooling drum 1 as shown in the drawing, the outer peripheral surface of the pulley 3 on the take-out side and the back surface of the steel belt 4 come into contact with each other. In addition, on the forward side of the steel belt 4, the angle at which the steel belt 4 contacts the cooling drum 1 is 180 degrees or more, more preferably 195 to 275 degrees (in the illustrated example, 2 degrees).
The pulleys 2 and 3 are arranged so as to be 10 degrees. Thereby, the material sandwiched between the steel belt 4 and the cooling drum 1 can be simultaneously cooled from both sides over a long stroke, and the cooling efficiency can be improved.

On the side opposite to the pulley 3 of the cooling drum 1, a pressing roller 5 is supported by the main body frame F, and the pressing roller 5 abuts against the rear surface of the steel belt 4 on the outward path, so that the steel belt 4 travels on the outward path. Side is pressed to the cooling drum 1 side, whereby the material supplied on the steel belt 4 by the feeder is pressed to the cooling drum 1 side and has a uniform thickness with the steel belt 4 side. And be pinched and move. By making this material to have a uniform thickness, the cooling of the material can be made uniform.

In this case, as in the modified embodiment of the steel belt type cooling machine of the present invention shown in FIG. 6, the pressing roller 51 is used.
In addition, by providing the gap adjusting mechanism 52, it is possible to adjust the thickness of the product and obtain the thickness of the product according to the viscosity of the supplied material.

Further, the tensioning device 8 is attached to the other pulley 2.
The steel belt 4 is adjusted so that it is always stretched with a predetermined tension.

The return path of the steel belt 4 along the outer periphery of the cooling drum 1 is smoothly guided without contacting the cooling drum 1, so that the cooling drum 1 does not contact the cooling drum 1. The belt guide 6 formed in an arc shape at a predetermined interval along the outer periphery of the main body frame F
To be installed. As a result, the guide of the steel belt 4 on the return path side can be performed easily and arbitrarily, and the device can be downsized.

For the transition of the steel belt 4 on the return path side, as in the modified embodiment of the steel belt type cooling machine of the present invention shown in FIGS. 4 and 5, the guide rollers 42, 42a, 42b can also be provided. As a result, the steel belt 4 can be moved more smoothly.

Further, a cooling device 9 is arranged as shown in FIG. 2 so as to cool the outward side of the steel belt 4.
This is not particularly limited, but the position where the material cooled and solidified by the first scraper 7 is peeled off from the position A where the material is supplied onto the steel belt 4 by the feeder (not shown). A large number of nozzles 91, 91, ... Are arranged so as to inject cooling water toward the outward path of the steel belt 4 so that B is cooled. A cooling water supply pipe for supplying cooling water is connected to each of the nozzles 91, contacts the back surface of the steel belt 4 on the outward path, and collects the cooling water after heat exchange in a cooling water receiver, Configure to drain to. The positions of the nozzles 91, 91 are not particularly limited, but are set so that the steel belt 4 can be effectively cooled.

Next, the operation of this steel belt type cooling machine will be described. While cooling the cooling drum 1 and the steel belt 4 by jetting cooling water from the nozzle 91 of the cooling device 9, the cooling drum 1 is driven by the driving device. In this case, the steel belt 4 is driven by following the driving of the cooling drum 1 by bringing the material into close contact with the cooling drum 1 so that the peripheral speed can be adjusted, and When the material is supplied from a feeder (not shown) arranged above the forward end of the steel belt 4, the supplied material is conveyed by driving the steel belt 4. It is also possible to drive the steel belt 4 together with the peripheral speed of the cooling drum 1.

Further, in this case, dehumidified air can be supplied into the main body frame F in which the cooling drum 1 and the steel belt 4 are arranged.

The material on the steel belt 4 is cooled from one side on the steel belt 4 side, but when it reaches the position of the cooling drum 1, the material acts on the steel belt 4 by the action of the pressing roller 5. It is forcibly sandwiched between the cooling drum 1 and the cooling drum 1 and uniformly rolled. In this state, along the outer peripheral surface of the cooling drum 1, the cooling drum 1
The material is simultaneously cooled from both sides of the cooling drum 1 and the steel belt 4 while moving around the outer circumference of about 180 degrees or more.

The material which has been cooled and solidified while moving along the outer peripheral surface of the cooling drum 1 naturally peels off at the position B where the steel belt 4 is separated from the cooling drum 1, but a part of the material is used for cooling. In some cases, the unpeeled material is attached to the outer peripheral surface of the drum 1 and the surface of the steel belt 4 by the scraper 7 arranged at the position where the steel belt 4 is separated from the cooling drum 1. It is forcibly peeled and removed. The scraper 7 can be arranged only at the position B where the steel belt 4 is separated from the cooling drum 1, but since the material is more reliably peeled off,
As shown in this embodiment, they may be arranged in upper and lower two stages.

The materials that are naturally peeled off from the cooling drum 1 and the steel belt 4 or are forcibly peeled off by the scraper 7 are collected in a crushing device (not shown) arranged at a lower position of the scraper 7. , Crushed to the required granular or powder form. In this way, the supplied material is cooled and crushed efficiently and continuously.

Further, in the present embodiment, as shown in the figure, the material is a feeder (not shown) and the steel belt 4 is used.
Since the position A supplied above is set to the low position, the connection with the feeder can be easily performed, and the material is taken out after cooling, that is, the material cooled and solidified by the scraper 7 is By setting the position B where peeling and removal is performed to a high position, there is an advantage that the connection with the crushing device is simplified and the overall machine height can be lowered.

Although the steel belt type cooling machine of the present invention has been described above based on a plurality of embodiments, the present invention is not limited to the structures described in the above embodiments.
The configurations described in each of the embodiments can be appropriately combined with each other without departing from the scope of the invention.

[0037]

According to the steel belt cooler of the present invention, the angle at which the steel belt contacts the cooling drum is 1
Since the pulleys are arranged at 80 degrees or more and the back side of the steel belt and the cooling drum is cooled, the material sandwiched between the steel belt and the cooling drum is spread over a long process. , It is possible to cool from both sides at the same time, and it is possible to improve the cooling efficiency. This makes it possible to downsize the cooler, reduce the installation space, and use the steel belt to reduce the belt surface. Cleaning can also be done easily.

Further, the steel belt is constructed such that the return path side of the steel belt at the position of the cooling drum is guided by a belt guide arranged at a predetermined interval along the outer circumference of the cooling drum. The guide on the return path can be easily and arbitrarily performed, and the device can be downsized.

Further, by arranging the return path side of the steel belt at the position of the cooling drum to be guided by the guide roller, the steel belt can be smoothly transferred and damage due to wear of the steel belt can be prevented. You can

Further, since the pressing roller for pressing and rolling the material existing between the cooling drum and the steel belt is provided on the back surface of the steel belt, the efficiency can be improved even in the case of a highly viscous raw material. The material can be well rolled, and the material is rolled to a desired thickness between the cooling drum and the steel belt, and a sufficient cooling effect can be obtained.

Further, by making the diameter of the cooling drum larger than the diameter of the pulley, it is possible to secure a long contact distance between the steel belt and the cooling drum with a simple structure, and to improve the cooling efficiency. The size of the device can be reduced while improving.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of a steel belt type cooling machine of the present invention.

FIG. 2 is an explanatory diagram showing a cooling method.

FIG. 3 is a sectional view of a cooling drum.

FIG. 4 is a side view showing another embodiment of the steel belt type cooling machine of the present invention.

FIG. 5 is a side view showing another embodiment of the steel belt type cooling machine of the present invention.

FIG. 6 is a side view showing another embodiment of the steel belt type cooling machine of the present invention.

[Explanation of symbols]

1 cooling drum 11 axes 12 bearings 13,15 swivel 14 Water pipe 16a Water absorption pipe 16b drain pipe A few pulleys 21, 31 axis 22, 32 bearing 4 steel belt 41 guide belt 42, 42a, 42b Guide rollers 5,51 Presser roller 5 Presser roller 6 Belt guide 7 scraper 8 tension device 9 Cooling device 91 nozzles F body frame

Claims (5)

[Claims] 1. A steel belt stretched between pulleys,
In a steel belt type cooling machine including a cooling drum that contacts the steel belt, the pulley is arranged so that the angle at which the steel belt contacts the cooling drum is 180 degrees or more, and the steel belt and the cooling belt are cooled. Steel belt cooler characterized in that the back side of the drum is cooled. 2. The return path side of the steel belt at the position of the cooling drum is guided by a belt guide arranged along the outer periphery of the cooling drum with a predetermined space. Item 1. A steel belt type cooler according to item 1. 3. The steel belt type cooling machine according to claim 1, wherein the return path side of the steel belt at the position of the cooling drum is guided by a guide roller. 4. The steel belt type according to claim 1, wherein a pressing roller for pressing and rolling the material existing between the cooling drum and the steel belt is provided on the back surface of the steel belt. Chiller. 5. The steel belt type cooling machine according to claim 1, 2, 3 or 4, wherein the diameter of the cooling drum is larger than the diameter of the pulley.