JP2001058321A - Breakdow system for product using rubber - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce a part depending on manual handling, to reduce costs, and to improve work efficiency by breaking down rubber by exposing an object to ozone gas and discharging the rubber outside a container by a recovery apparatus. SOLUTION: An object 4 fitted with rubber is mounted on a screen 2c in a container 2, a high concentration ozone gas is injected from an ozone supply apparatus 1 into the container 2. The rubber adhering to the object 4 is broken down by the ozone gas, peeled off, dropped, and stored in a recovered rubber receiving tray 2d. When the tray 2d is filled with the recovered rubber appropriately, the tray 2d is removed from an opening 2b for the recovered rubber. The ozone gas in the container 2 is decomposed by a waste ozone decomposition apparatus 5 to be discharged into the air.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a system for removing and recovering a rubber portion from a rubber product having a portion made of rubber or a material containing rubber.

[0002]

2. Description of the Related Art Recently, when various kinds of products are discarded, there is an increasing demand for recovering and reusing as much material as possible from the material. This tendency is the same in rubber products or various products to which rubber parts are attached. The rubber product mentioned here is not limited to a product made only of rubber, but a product using a portion made of rubber or a material containing rubber. 100% for products using rubber or rubber-containing parts
There are almost no products made of rubber alone, and in most cases, rubber is bonded to a material other than rubber, such as metal, plastic, wood, and the like, and the product is often manufactured. For example, many tires or rubber hoses contain resin fibers or metal wires for reinforcement, and many rubber vibration damping materials are bonded to an iron end plate for mounting on a vibration damping object.

In order to reuse rubber, it is necessary to separate and collect the rubber adhering to the foreign matter as described above.
Conventionally, the rubber has been collected by performing cutting, grinding, and peeling operations using a hand tool, for example, to mechanically peel off the foreign matter, or by separating the rubber by using a high-frequency heating or a heating furnace to increase the heat.

However, cutting, grinding, and peeling operations are
Due to the extremely wide variety of shapes and hardness of rubber-based products, work efficiency is low and automation is difficult, which increases costs and is not practical. In addition, in the method by heating, there is a problem that it is not economical because the cost of energy required for heating is higher than the price of the rubber to be recovered, and in addition to the generation of a unique odor due to heating the rubber, There are many problems such as the need for environmental measures, and practical application is difficult.

[0005]

The conventional rubber-based product decomposition system is constructed as described above. 1) The work efficiency is low, the automation is difficult, the cost is high, and practical use is difficult. 2) It requires a lot of energy and is not economically viable. 3) Further environmental measures are required for the operation of the decomposition system. There was a problem.

The present invention has been made to solve the above problems. 1) The work efficiency is high, the automation is easy, and the cost can be reduced. 2) Does not require a large amount of energy, and is economical. 3) No additional environmental measures are required for the operation of the decomposition system. The purpose of the present invention is to obtain a decomposition system for rubber-based products that satisfies the above-mentioned requirements.

[0007]

SUMMARY OF THE INVENTION A rubber-based product decomposition system according to the present invention is a rubber-based product decomposition system for separating rubber from a rubber-based product having a portion made of rubber or a material containing rubber. A container for storing the rubber-based product, which is substantially sealed, an ozone supply device for supplying ozone gas into the container, and a collection for taking out the rubber separated from the rubber-based product by the ozone gas and accumulated in the container. And a device.

The container is provided with a vibration device for applying vibration to the container.

[0009] In addition, while holding the product using rubber,
The apparatus further includes a processing object driving device that applies vibration or rotation to the rubber product.

[0010] Further, the recovery device includes a second container that can be inserted into the container.

[0011] The recovery device includes a pipe connected to the bottom of the container and a pump connected to the pipe.

Further, the container is provided with an ozone decomposing device for collecting and treating the injected ozone gas.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 FIG. 1 shows the configuration of a rubber-based product decomposition system according to the present invention. In the figure, reference numeral 1 denotes an ozone supply device which generates a high-concentration ozone gas (for example, several hundred PPM or more), and 2 denotes a container to which the ozone gas generated by the ozone supply device 1 is supplied.
The container 2 is provided with a rubber product 4 to which a rubber to be treated (here, the rubber includes natural rubber, synthetic rubber, and a polymer material which is fluidized by ozone described below) is attached. An object entrance / exit 2a for taking in / out an object and a collected rubber receptacle entrance / exit 2b into / from which a collected rubber receptacle 2d containing collected rubber 4a enters and exits are provided. The recovered rubber tray 2d is the second
Container.

Reference numeral 2c denotes a screen for holding the object 4, which is, for example, a wire mesh or a grate having a structure which does not hinder the flow of the ozone gas and the fall of the separated rubber. Reference numeral 5 denotes a waste ozone decomposing device that decomposes residual ozone contained in the gas discharged from the container 2 and discharges the decomposed ozone to the atmosphere. Reference numeral 23 denotes a vibration device attached to the bottom or side surface of the container 2 to apply vibration to the container 2. Of course, the vibration applied to the container 2 also applies to the object 4 via the screen 2c.

Next, the operation will be described with reference to FIG. First, a rubber-based product (object) 4 having a portion made of rubber or a material containing rubber is put on the screen 2C in the container 2 from the object entrance 2a. Then, an ozone gas (not shown) is supplied from the ozone supply device 1 into the container 2. At the same time, the vibration device 23 is activated to apply vibration to the entire container and the object 4. The vibration referred to here is, for example, several HZ
A frequency of about several hundreds of Hz is preferable. When the ozone gas touches the surface of the rubber of the object 4 or the surface of the material containing the rubber, the rubber is decomposed, and rubble is broken.
It is powdered or fluidized and falls on the screen 2C. Furthermore, since the screen 2C is a wire mesh or a sliver shape,
The rubber accumulates in the recovered rubber tray 2d further from the gap. Since the applied vibration shakes the object 4 and the container 2, the ozone gas in the container 2 always flows without stagnation, and the object 4 always comes in contact with fresh (high concentration) ozone gas. The decomposition reaction is accelerated.

Since the concentration of the ozone gas in the container 2 decreases with the passage of time, the ozone gas is collected in a waste ozone decomposer 5 and then decomposed and then released to the atmosphere or collected in an ozone supply device 1 by a pipe (not shown). To reuse. Object 4
Even if not all of the rubber adhering to the object 4 is decomposed, if it is separated from the object 4 and falls, it is not necessary to decompose it further. The fallen rubber 4a accumulates in the collected rubber pan 2d, so that the collected rubber pan entrance 2
b, is pulled out while being placed on the recovery rubber tray 2d, and is carried to the next step (not shown). The recovered rubber tray 2d is inserted into the container 2 again. When the rubber of the object 4 is peeled to a desired degree, the object 4 is replaced with the next one. Although not shown, a fan for stirring the ozone gas may be provided in the container 2 or a pipe for supplying the ozone gas may be provided so as to protrude toward the object 4. The recovery rubber tray 2d and the recovery rubber tray entrance / exit 2b constitute a recovery device according to the present invention.

Embodiment 2 FIG. FIG. 2 shows a rubber-based product decomposition system according to Embodiment 2 of the present invention. In the following drawings, those having the same reference numerals as those in FIG. 1 indicate the same or corresponding parts, and a detailed description thereof will be omitted. In FIG. 2, the vibrating device 23 is directly connected to the screen 2c,
Is vibrated, and only the screen 2c and the object 4 thereon are vibrated. Thus, the vibration device 23 can be reduced in size without significantly reducing the effect of vibration. Here, the vibrating device 23 does not necessarily have to vibrate, but may be a rotating device configured to rotate the screen 2c in the form of a turntable, for example. Of course, both vibration and rotation may be applied. The vibration device 23 is an object driving device according to the present invention.

Embodiment 3 FIG. 3 shows a rubber-based product decomposition system according to Embodiment 3 of the present invention. In the drawing, reference numeral 14 denotes an object driving device that moves the object 4 while hanging it, and 15 denotes a conveyor or rail on which the object driving device 14 moves. Reference numeral 12 denotes an entrance door provided on the container 2, and reference numeral 13 denotes an exit door. The bottom surface 18 of the container 2 is depressed in a funnel shape,
The pipe 16 is connected to the lowest part. The pipe 16 is provided with a pump 17. The pump 17 is in the form of powder, liquid,
This is a screw pump that can transfer solid rubber in a mixed state.

Next, the operation of the rubber-based product decomposition system shown in FIG. 3 will be described. In FIG. 3, the object 4 is suspended by the object driving device 14 and moves along the rail 15. The entrance door 12 and the exit door 13 open automatically when the object driving device 14 approaches, and close automatically after passing. The object driving device 14 can not only suspend the object 4 but also apply vibration to the object 4 or rotate the object 4 appropriately.

The object driving device 14 moves at an appropriate speed where it passes through the outside of the container and the entrance door 12, but the container 2
If you go inside, it will be extremely slow or stop temporarily. Although only one object drive device 14 is shown in the figure, a plurality of the object drive devices 14 are operated at appropriate intervals. Therefore, a plurality of object driving devices 14 are continuously moved or stopped at a low speed in the container 2. Entrance door 12 and exit door 13
Opening only when the object driving device 14 passes, but there is no proper opening between the object driving devices 14 so that the door does not stay open, and the door can be doubled if necessary. It is. When each door is closed, the space between the door and the rail 15 is also almost completely sealed, so that ozone gas does not leak or unpleasant odor does not leak outside.

While the object 4 is moving in the container 2, the rubber is separated by the ozone gas and falls.
The rubber 4a accumulated on the funnel-shaped bottom surface 18 is gradually and continuously discharged to the outside through the pipe 16 by the pump 17. The pipe 16 and the pump 17 also constitute a recovery device according to the present invention. The recovery of rubber is performed almost continuously by the system of FIG.

In the above description, a system using ozone gas has been described, but an ozone aqueous solution obtained by dissolving ozone gas in water can also be used. In addition, although the target has been described as rubber, it goes without saying that the present invention can be used for all polymer compounds decomposed by ozone gas, for example, nylon and the like.

[0023]

As described above, the rubber-based product decomposition system according to the present invention decomposes rubber by exposing the object to ozone gas, and discharges the rubber to the outside of the container by the recovery device. Therefore, the cost is reduced and the work efficiency is high because there are few parts relying on manual labor.

An object driving device for moving a rail;
Since a recovery device using a pipe and a pump is used, an effect that automation is easy can be obtained.

Since there is no heat treatment part, energy consumption is small. The effect is obtained that a waste ozonolysis device is required but no other environmental measures are required.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a rubber-based product decomposition system according to Embodiment 1 of the present invention.

FIG. 2 is a configuration diagram of a rubber-based product decomposition system according to Embodiment 2 of the present invention.

FIG. 3 is a configuration diagram of a rubber-based product decomposition system according to Embodiment 3 of the present invention.

[Explanation of symbols]

1 Ozone supply device, 2 Container, 2a Object entrance and exit, 2b Collection rubber tray entrance and exit, 2c Screen, 2d Collection rubber tray, 4 Rubber product (object), 4a Rubber, 5 Waste ozone decomposer,
12 entrance door, 13 exit door, 14 object drive device, 15 rail, 16 piping, 17 pump, 18 funnel-shaped bottom surface, 23 vibrating device.

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Yusaku Sakata 3-1-1 Tsushimanaka, Okayama City, Okayama Prefecture F-term in the Faculty of Engineering, Okayama University

Claims (6)

[Claims] 1. A rubber-based product disassembly system for separating a rubber-based material from a rubber-based product having a portion made of rubber or rubber-containing material,
A container which is substantially sealed and stores the rubber-based product, an ozone supply device for supplying ozone gas into the container, and a rubber separated from the rubber-based product by the ozone gas and accumulated in the container to the outside of the container. A decomposition system for a rubber-based product, comprising a recovery device for taking out the rubber. 2. The rubber product disassembly system according to claim 1, wherein the container is provided with a vibration device for applying vibration to the container. 3. The rubber-based product disassembly system according to claim 1, wherein the container is provided with an object driving device that holds the rubber-based product and vibrates or rotates the rubber-based product. . 4. The rubber-based product decomposition system according to claim 1, wherein the collection device includes a second container that can be inserted into the container. 5. The rubber-based product recovery system according to claim 1, wherein the recovery device includes a pipe connected to the bottom of the container, and a pump connected to the pipe. 6. The rubber-based product decomposition system according to claim 1, wherein the container is provided with a waste ozone decomposition device for collecting and treating the injected ozone gas.