JPS634502Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention includes a granulation belt conveyor, a feeder for dropping molten material onto the belt of the granulation belt conveyor, and a cooling device for cooling the belt. The present invention relates to a granulating device that cools and solidifies into granules while being transported by the belt.

Conventional devices of this type include those shown in FIGS. 1 and 2. Note that FIG. 1 is a side view, and FIG. 2 is a sectional view taken along the line - in FIG. 1.
In the figure, 1 is a granulation belt conveyor, 2 is its belt, and generally a steel belt is used. 3 and 4 are end drums, 5 and 6 are frames for the end drums 3 and 4, and the belt 2 is driven to run in the direction of an arrow 7. A molten material feeder 8 is provided near one end of the belt 2, receives the molten material to be granulated via a pump 9 and a flow rate regulating valve 10, and feeds it through a series of nozzles 11 onto the belt 2. The liquid is dropped onto the upper running part at predetermined intervals in the width direction thereof. Since such a feeder is conventionally well known, a detailed description thereof will be omitted. Reference numeral 12 designates a cooling medium jetting pipe having a number of nozzles 13 for jetting a suitable cooling medium (for example, water) toward the lower surface of the upper running portion of the belt 2, and 14 represents a tank for receiving the cooling medium. 15
is a scraper.

Next, the operation will be explained.

The molten material fed into the feeder 8 by the pump 9 via the flow control valve 10 is dripped from the nozzle 11 onto the upper running portion of the belt 2 near one end thereof, and is transferred in the direction of the arrow 7. During this transfer, the molten material distributed and supplied onto the belt 2 is indirectly cooled and solidified by the refrigerant ejected from the nozzle 13 of the coolant ejection pipe 12, and becomes granular. scraper 1 from the other end of 2
5.

However, in the case of such a granulation device, only one feeder is provided for one granulation belt conveyor, so if it is desired to increase the production amount, many granulation belt conveyors must be installed. However, the disadvantage was that the equipment cost increased and the installation area also increased.

The present invention was developed to eliminate the drawbacks of conventional granulation equipment, and involves attaching a plurality of feeders to a single granulation belt conveyor, and collecting the granules dropped from each feeder and cooled and solidified. By dropping the granules on the side of the conveyor and providing a receiving conveyor juxtaposed to the granulation belt conveyor to receive the dropped granules, the granulation belt conveyor can be used effectively, thereby reducing equipment costs. The aim is to achieve a reduction in the installation area.

The present invention will be explained below based on the embodiments shown in FIGS. 3 to 5.

In FIGS. 3 to 5, numerals 1 to 14 indicate the same things as in FIGS. 1 and 2, but
In FIG. 3, the cooling medium jet pipe 12 and the tank 14 are omitted for the sake of simplification of the drawing.

According to the present invention, as shown in the figure, a plurality of feeders 8 are connected to the belt 2 for one granulation belt conveyor 1.
are provided at predetermined intervals in the running direction. In this embodiment, as shown in FIG. 4, two granulation belt conveyors 1, 1 each having a plurality of feeders 8 are arranged side by side, but these granulation belt conveyors have the same structure as each other. . 3 to 5, 16 is the belt 2
A scraper is placed adjacent to the upper surface of the scraper, and the granular material dropped from each feeder 8 and cooled and solidified is transferred to the side of the belt 2 before the next feeder and to the side of the other granulation belt conveyor. It is something that causes it to fall. For this purpose, when looking at the granulation belt conveyor 1 on the left side of FIG. 4, each scraper 16 is installed at an angle as shown in the figure with respect to the running direction 7 of the belt 2, as shown in the plan view of FIG. . Therefore, the molten material dripped from each feeder 8 is allowed to fall sideways from the belt 2 as shown by the arrows without interfering with the molten material dripping from the next feeder 8.

Reference numeral 17 denotes a receiving conveyor for receiving the granules dropped in this manner, and is arranged in parallel between the two granulating belt conveyors 1,1. 18,1
9 is the end drum of the receiving conveyor 17, 20,
21 is a frame for the end drums 18 and 19;
The upper running portion 22 of the receiving conveyor 17 is also driven to run in the direction of arrow 7. 23 is the lower surface of the granule falling side edge of the upper running part 24 of the granulation belt conveyor 1, 1 and the upper running part 22 of the receiving conveyor 17.
A skirt disposed between the upper surface and the granulation belt conveyor 1, 1 to the scraper 16.
Conveyor 17 receives the granules dropped by
This is to guide you upwards. Additionally, in order to prevent the granules from falling sideways from the receiving conveyor 16, the gap between the lower edge of each skirt 23, 23 and the upper surface of the receiving conveyor 17 is made smaller than the minimum diameter of the granules. be.

Reference numeral 25 designates a transport conveyor provided at the end of the granulation belt conveyors 1, 1 and the receiving conveyor 17 in a direction perpendicular to these conveyors, 26 is an end drum thereof, and 27 is a frame for the end drum 26. A scraper 28 is provided at the end of the receiving conveyor 17, and is used to transfer the granular material that has fallen onto the receiving conveyor 17 onto the transport conveyor 25. In this embodiment, the conveyor 25 is provided at the end of the granulation belt conveyors 1, 1, so that the granules dropped from the last feeder 8 and cooled and solidified are dropped onto the receiving conveyor 17 by the scraper 16. without being transferred directly to the conveyor 25 by the scraper 15.

Next, the operation will be explained. The molten material dripped from each feeder 8 is cooled and solidified before reaching the next feeder 8, and is turned into granules and dropped onto a receiving conveyor 17 by a scraper 16. Further, the molten material dripped from the last feeder 8 is transferred to the granulation belt conveyor 1, 1.
It is cooled and solidified by the time it reaches the terminal end of the conveyor 2 and becomes a granular material.
Moved to 5. The granules that have fallen onto the receiving conveyor 17 are transferred to the transport conveyor 25 by a scraper 28. The granules are thus transported to the desired location by the transport conveyor 25. In addition,
The conveyor 25 is omitted and the receiving conveyor 1
When the feeder 7 is further extended to the right in FIG. 3 to function as a transport conveyor, a scraper 15 is also provided for the last feeder 8 to drop the granular material onto the receiving conveyor 17.

Another embodiment of the invention is shown in FIGS. 6 and 7. Note that, in FIG. 6, the cooling device including the coolant jet pipe 12 and the skirt are not shown to simplify the drawing. Further, in FIG. 7, the frames 5 and 20 are schematically shown by a single line.

The difference between this embodiment and the embodiments shown in FIGS. 3 to 5 is that the belts 2 of each granulation belt conveyor 1, 1
The lower running part 29 is also intended to be used for granulation, and for this purpose, a cooling device including a cooling medium jet pipe 12 and a tank 14 is also provided for the lower running part 29, and the upper surface of the lower running part 29 is A plurality of feeders 8 and corresponding scrapers 16 are arranged facing each other. and skirts 30, 30 for the granules falling from the upper run 24 and the lower run 29.
Skirts 31, 31 for granules falling from
and are provided separately. Since the running direction of the lower running section 29 is opposite to the running direction of the upper running section 24, the feeder 8 and the scraper 1 are moved accordingly.
6.

As described above, according to the present invention, multiple feeders are provided for one granulation belt conveyor,
Since the granules dropped from each feeder and cooled and solidified are received by a common receiving conveyor before the next feeder, the number of granulation belt conveyors is small compared to the number of feeders. , the overall cost of the device can be reduced, and the installation area can also be reduced.

In addition, in the present invention, a combination of one granulation belt conveyor and one receiving conveyor may be used.
By combining two granulation belt conveyors with one receiving conveyor as shown in FIGS. 3 to 5, and furthermore, as shown in FIGS. 6 and 7, the upper granulation belt conveyor By using both the lower part and the lower running part for granulation, the above-mentioned effects become even more significant.

The granulating device of the type of the present invention can be used to process various materials such as various hot melt adhesives, polymeric alcohols, fatty acids, various waxes and paraffins, various synthetic resins, atactic polypropylene, caprolactam, benzoic acid, maleic anhydride, sulfur, and pitch. The present invention is not limited to such materials, which can be used for granulation.

[Brief explanation of drawings]

FIG. 1 is a side view of a conventional granulating device, FIG. 2 is a sectional view taken along the line - in FIG. 1, and FIG. 3 is a side view of a granulating device according to an embodiment of the present invention. A diagram omitting the granulation device on the right side of Figure 4, Figure 4 is a sectional view taken along the line - in Figure 3, and Figure 5 is a plan view of a portion of the granulation belt conveyor used in the present invention. , FIG. 6 is a side view similar to FIG. 3, showing a part of another embodiment of the present invention, and FIG. 7 is a sectional view taken along the line - in FIG. part or equivalent part. In the figure, 1 is a granulation belt conveyor, 2 is its belt, 8 is a feeder, 16 is a scraper, 1
7 is a receiving conveyor.

Claims (1)

[Claims for Utility Model Registration] 1. A granulation belt conveyor, a feeder for dropping molten material onto the belt of the granulation belt conveyor, and a cooling device for cooling the belt, and the molten material dropped on the belt is equipped with a cooling device for cooling the belt. In a granulating device that cools and solidifies into granules while being transferred, a plurality of feeders are arranged with respect to the belt at predetermined intervals in the running direction of the belt, and drops from each feeder are cooled and solidified. a scraper for dropping the granulated material to the side of the belt before the next feeder, and a receiving conveyor juxtaposed to the granulation belt conveyor for receiving the granular material dropped by the scraper. Granulation equipment. 2. The granulation apparatus according to claim 1, wherein a plurality of feeders and scrapers are provided for each of the upper and lower running parts of the belt of the granulation belt conveyor. 3 Utility model registration claim No. 1 in which two granulation belt conveyors are arranged side by side and the receiving conveyor is arranged between these granulation belt conveyors.
The granulation device described in Section 1.