KR100971024B1 - Pyrolysis plant for waste rubber - Google Patents

Abstract

The present invention improves the transfer efficiency of the heat source transferred to the pyrolysis furnace to pyrolyze waste rubber, and relates to a waste rubber pyrolysis device that continuously supplies waste rubber to the pyrolysis furnace continuously while maintaining the inside of the pyrolysis furnace in a vacuum atmosphere. External appearance 110 for thermal decomposition; An inner tube 120 for pyrolysis, which is embedded in the outer pyrolysis exterior 110 to form an outer heat medium flow path 121; A rotation shaft 130 which is provided in the inner pipe 120 for pyrolysis and having a transfer screw 131 on the outside thereof; A drive motor 140 for rotating the pivot shaft 130; The outer heat medium supply unit 150 for circulating the heat medium through the outer heat medium flow path 121 formed between the outer pyrolysis inner pipe 110 and the inner pipe 120 for pyrolysis to transfer high temperature heat toward the inner pipe 120 for pyrolysis. )Wow; An inner heat medium supply unit (160) for transferring high temperature heat from the rotation shaft (130) toward the inner pipe (120) for pyrolysis; The rotary shaft 130 and the inner heat medium supply unit 160 is connected between the rotary shaft 130 is rotatably connected to the rotary joint 170; consists of.

Waste Rubber, Waste Tire, Black Carbon, Iron Core, Recycling, Vacuum, Air, Gas

Description

Pyrolysis plant for waste rubber

The present invention improves the thermal resolution by providing a heat source provided for pyrolysis of waste rubber from the outside of the pyrolysis furnace to the inside of the tube as well as a means for simultaneously providing an additional heat source even within the tube of the pyrolysis furnace, and waste rubber The present invention relates to a waste rubber pyrolysis apparatus which continuously supplies waste rubber to the pyrolysis furnace continuously while maintaining the inside of the pyrolysis furnace for pyrolysis of the pyrolysis furnace.

In general, waste tires containing waste tires generated in automobiles or plastic products generated in everyday life require several hundred years to naturally decompose, and various methods for recycling them have been proposed.

As such, various methods of recycling waste rubber are used in asphalt raw material, pallet production, and other sidewalk blocks and cushioning materials. In addition, finely crushed waste rubber is used as a heat source for fuel of thermal power plants, for fuel for limestone firing in cement plants or by other dry distillation incinerators.

However, if the waste rubber is to be used as a heat source of a dry distillation incinerator, since soot is generated due to incomplete combustion caused during the recycling process, there is a problem that an pollution prevention facility should be additionally installed. Moreover, these problems limit the amount of waste rubber recycled.

In order to solve this problem, an indirect heating treatment apparatus has been proposed.

The principle of the waste rubber pyrolysis device corresponding to the indirect heating treatment device is to transfer the waste rubber to the inside of the tube, and to transfer the high temperature heat to the inside of the pipe to which the waste rubber is loaded, so that the waste rubber is carbon Provides thermal decomposition to black, iron core and gas.

However, in the conventional waste rubber pyrolysis apparatus having such a principle, the thermal resolution is poor because only the heat source provided for the thermal decomposition is transferred from the outside of the tube to the inside of the tube. As a result, the length of the pipe to perform pyrolysis increases, so that various facilities related to the pyrolysis apparatus to be installed are increased, which leads to an increase in overall installation cost and an increase in process time related to pyrolysis.

In addition, when performing pyrolysis process using conventional waste rubber pyrolysis device, there is a risk of fire or explosion when air is present inside the device. Since the pyrolysis process is not possible, there is a problem in that the process time for pyrolysis is longer.

The present invention is to solve the problems of the prior art, an object of the present invention is to provide a heat source that is provided for the thermal decomposition of the waste rubber in addition to the heat source transferred from the outside of the pyrolysis furnace to the inside of the tube further in the tube of the pyrolysis furnace. The present invention provides a waste rubber pyrolysis device having improved thermal resolution by providing a heat source at the same time.

Another object of the present invention is to provide a pyrolysis apparatus for waste rubber having a means for continuously supplying waste rubber to the pyrolysis furnace continuously while maintaining the inside of a pyrolysis furnace for pyrolysis of waste rubber.

In the technical idea for achieving the present invention, the waste rubber pyrolysis device of the present invention comprises a waste rubber pyrolysis device for pyrolyzing waste rubber transferred through a high temperature heat transfer to a pyrolysis furnace and converting it into recycled products. Appearance for pyrolysis; An inner tube for pyrolysis inherent in the outer pyrolysis appearance to form an outer heat medium flow path; A rotation shaft which is provided in the inner pipe for pyrolysis and provided with a transfer screw on the outside; A drive motor for rotating the rotation shaft; An outer heat medium supply part configured to circulate a heat medium through an outer heat medium flow path formed between the outer pyrolysis inner pipe and the inner pipe for pyrolysis to transfer high temperature heat toward the inner pipe for pyrolysis; Inner heating medium flow path formed inside the rotating shaft by transferring high temperature heat from the rotating shaft to the inner pipe for pyrolysis, a feeding tube provided in the inner heating medium flow path, and an inner side for introducing the heating medium toward the feeding pipe. An inner heat medium supply part including a heat medium inflow pipe and an inner heat medium outlet pipe for outflowing the heat medium flowing along the inner heat medium flow path of the rotation shaft; A flow passage is formed therein, and one end of the flow passage is connected to the rotation shaft of the transfer pipe and the inner heat medium flow path, and the other end of the flow path is connected to the inner heat medium inflow pipe and the inner heat medium outlet pipe. Consisting of a rotary joint; the rotary shaft of the inner heat medium flow path connected to one end of the flow path of the rotary joint is rotatably connected.

A pre-treatment unit for removing air by introducing waste rubber and removing air when waste rubber is continuously introduced together with air from the outside in communication with one side of the pyrolysis furnace; It is in communication with the other side of the pyrolysis furnace to block the outside air is introduced into the pyrolysis furnace when the pyrolysis recycled products from the pyrolysis exit to the outside while the air-blocking post-processing unit for only out the pyrolyzed recycled products; .

The pre-treatment unit for air removal, the waste rubber inlet in communication with the pyrolysis furnace; The upper side opening and closing means which is installed in the upper portion of the waste rubber inlet, including an upper side sealing plate for opening or closing the inside of the waste rubber inlet by sliding movement and an upper side cylinder for slidingly moving the upper side sealing plate. and; The lower side opening and closing means which is installed under the waste rubber inlet, and includes a lower side sealing plate for opening or closing the inside of the waste rubber inlet by sliding movement and a lower side cylinder for slidingly moving the lower side sealing plate. It consists of;

And a vacuum pump installed between the upper opening and closing means installed in the waste rubber inlet and the lower opening and closing means, respectively, to remove the air remaining in the waste rubber inlet.

The post-treatment unit for air blocking may include: a recycled product outlet communicating with the pyrolysis furnace; An upper side opening and closing means installed at an upper portion of the recycled product outlet and including an upper side sealing plate for opening or blocking the inside of the recycled product outlet by sliding movement and an upper side cylinder for slidingly moving the upper side sealing plate; A lower side opening and closing means installed at a lower portion of the recycled product outlet and including a lower side sealing plate for opening or blocking the outside of the recycled product outlet by sliding movement and a lower side cylinder for slidingly moving the lower side sealing plate; Is done.

A cooling transfer path communicating between the pyrolysis furnace and the post-processing portion for blocking air, wherein the cooling transfer path comprises: an external appearance for cooling; A cooling inner tube embedded in the cooling exterior to form an outer coolant flow path; A rotation shaft which is provided in the inner tube for cooling and provided with a transfer screw on the outside thereof; A drive motor for rotating the rotation shaft; An outer coolant supply unit configured to circulate a coolant through a coolant flow path formed between the outer surface of the cooling unit and the inner tube for cooling to deliver cold air toward the inner tube for cooling; Communicating.

An inner coolant flow path formed inside the pivot shaft to transfer cold air from the rotation shaft to the inner tube for cooling, a transfer pipe provided in the inner coolant flow path, and an inner side into which the coolant body flows toward the transfer pipe An inner coolant body supply unit including a coolant body inflow tube and an inner coolant body outlet pipe configured to discharge the coolant body flowing along the inner coolant flow path of the rotation shaft; A flow passage is formed therein, one end of the flow passage is connected to a rotation shaft of the transfer pipe and the inner refrigerant body flow path, and the other end of the flow path is the inner refrigerant body inlet pipe and the inner refrigerant body outlet pipe. And a rotary joint connected to the rotating shaft of the inner refrigerant flow path connected to one end of the flow path of the rotary joint.

The present invention not only simplifies the facilities related to the pyrolysis device by improving the transfer efficiency of the heat source delivered in the unit time since the heat sources delivered to the pyrolysis furnace for pyrolysis of waste rubber are transferred together inside and outside the pyrolysis furnace. In addition, this reduces the overall installation cost and reduces the process time associated with pyrolysis.

The present invention can also continuously supply the waste rubber to the pyrolysis furnace continuously while maintaining the inside of the pyrolysis furnace that performs pyrolysis of the waste rubber, thereby preventing the gas generated by the pyrolysis of the waste rubber from contacting the air. By minimizing the risk of fire and explosion, it can also shorten the process time related to pyrolysis.

Hereinafter, with reference to the accompanying drawings, the configuration and operation of the embodiment of the present invention will be described in detail.

1 is a schematic system configuration diagram showing a waste rubber recycling system to which the waste rubber pyrolysis apparatus of the present invention is applied, FIG. 2 is a view showing a waste rubber pyrolysis apparatus of the present invention, and FIG. Fig. 4 is a main sectional view showing the furnace in detail, and Fig. 4 is a main sectional view showing the pretreatment for removing the air in the configuration of Fig. 2, and Figs. It is shaving.

As shown, the waste rubber pyrolysis apparatus of the present invention comprises a pretreatment unit 200 for removing air, a pyrolysis furnace 100, and an air blocking post-treatment unit 300.

The main function of the air removal pretreatment unit 200 is when the waste rubber is continuously introduced from the outside when the waste rubber and air is introduced together, among which, to remove the air, the upper and lower portion of the waste rubber inlet 210 By selectively closing and opening the interior by mechanical control, the upper side sealing plate 221 and the upper side sealing plate 221 for sealing the opening of the upper portion of the waste rubber inlet 210 and the sliding movement of the upper side sealing plate 221 An upper opening / closing means 220 formed of an upper cylinder 222 is installed, and a lower opening / closing means consisting of a lower side sealing plate 231 and a lower side cylinder 232 in the lower portion of the waste rubber inlet 210. 230 is installed.

Here, the operation control of the upper opening and closing means 220 and the lower opening and closing means 230, although not shown in the drawings, is controlled through a central control unit for overall control of the pyrolysis device of the present invention, or pyrolysis of the present invention. It can also be controlled by the manual operation of the operator operating the device.

In addition, a vacuum pump 240 is installed between the upper opening and closing means 220 and the lower opening and closing means 230 installed at the upper and lower portions of the waste rubber inlet 210, respectively, to the interior of the waste rubber inlet 210. When the waste rubber is put together with the air, the air is sucked and removed by the vacuum pump 240. Therefore, by minimizing the amount of air remaining in the pyrolysis furnace 100 during the pyrolysis process of the waste rubber, which is a post-treatment process, air introduced during the pyrolysis process at a temperature of several hundred degrees Celsius, which is an internal process temperature of the pyrolysis furnace 100, is minimized. It prevents the risk of fire and explosion that can be caused by fire.

In addition, the waste rubber continuously supplied through the waste rubber inlet 210 as another function of the air removing pretreatment unit 200 is accumulated in the closed upper side sealing plate 221, where the waste rubber is stacked on the upper side The plate 221 is provided so that the operator can continuously input the desired dose at a desired time through automatic or manual control.

To this end, the hopper 1 is communicated with the upper end of the waste rubber inlet 210, and waste rubber including waste tires or waste plastic is introduced through the hopper 1 communicated therewith. In addition, the waste rubber introduced through the hopper (1) is provided is broken into pieces of a predetermined size to adjust the input amount. In addition, the lower end of the waste rubber inlet 210 communicates with the pyrolysis furnace 100 to allow the waste rubber to enter into the pyrolysis furnace 100 under a vacuum atmosphere.

The pyrolysis furnace 100 is a device for thermally decomposing waste rubber continuously introduced from the connected air removal pretreatment unit 200 under vacuum atmosphere to be converted into recycled products. As the inner pipe 120 for pyrolysis is embedded in the interior of the pyrolysis exterior 110 through which the waste rubber inlet 210 constituting the outside, the outer heat medium flow path which is a passage through which the heat medium (steam, air or oil) can flow. 121 is formed between the inner and outer surfaces 110 and 120 for thermal decomposition.

At this time, the inner pipe for thermal decomposition 120 is in communication with the waste rubber inlet 210, the waste rubber introduced from the waste rubber inlet 210 is stacked, from the heat medium flowing through the outer heat medium flow path 121 The generated high temperature heat is transferred to the waste rubber accumulated in the inner pipe 120 for pyrolysis, thereby providing the pyrolysis to proceed.

In addition, the outer heat medium supply unit 150 in the form of a tube is in communication with the thermally decomposed exterior 110 so that the heat medium flowing through the outer heat medium flow path 121 is circulated, so that the amount of heat medium flowing can be adjusted. The inlet control valve 151 is connected to one side of the outer heat medium supply unit 150, and the outflow control valve 152 may be connected to the other side of the outer heat medium supply unit 150.

In addition, the inner pipe 120 for pyrolysis has a rotating shaft 130 provided with a transfer screw 131 on the outside so that waste rubber introduced through the connected waste rubber inlet 210 is transferred to the inner pipe 120 for pyrolysis. In this case, the driving motor 140 is connected to one end of the rotation shaft 130 so as to rotate.

Here, the inner heat medium supply unit 160 is provided so that the high temperature heat is also transferred to the waste rubber accumulated in the inner pipe 120 for pyrolysis through the rotation shaft 130. An inner heat medium flow path 132 is formed inside the rotation shaft 130, and a transfer pipe 161 is provided in the formed inner heat medium flow path 132. In addition, the inner heat medium inlet pipe 162 for introducing the heat medium toward the transfer pipe 161 is connected, the inner heat medium for flowing out the heat medium flowing along the inner heat medium flow path 132 of the rotating shaft 130 to the outside It consists of an outlet pipe 163. Here, a part of the inner heat medium inflow pipe 162 is provided inherently in the inner heat medium outlet pipe 163 as shown in the figure.

By the way, the rotating shaft 130 is connected to the inner heat medium supply unit 160 should be rotated for the transport of the waste rubber, the inner heat medium supply unit 160 is to be fixed so as to safely supply the heat medium to the rotating shaft 130 desirable.

For this reason, between the rotation shaft 130 and the inner heat medium supply unit 160, one side is rotatably connected, and the other side is fixedly connected to provide a rotary joint 170 for connecting.

In this case, the rotary joint 170 connected to the relay is formed through the flow path 171 therein, one end of the through-formed flow path 171 to the inner heat medium flow path 132 in which the transfer pipe 161 is embedded. Relay connection to the rotating shaft 130 of the rotary joint by connecting the other end of the flow path 171 formed through the inner heat medium inlet pipe 162 with the inner heat medium inlet pipe 162 therein, the rotary joint 170 Rotating shaft 130 of the inner heat medium flow path 132 connected to one end of the flow path 171 of the () is rotatably connected, the inner heat medium outflow pipe 163 in which the inner heat medium inlet pipe 162 is embedded ) Is connected stably and securely.

In addition, as shown in the drawing, the pyrolysis furnace 100 may be provided in a plurality of vertically stacked in consideration of the amount of waste rubber, the length of the pyrolysis furnace 100 and the pyrolysis process time, and at this time, the pyrolysis furnace ( 100) a relay communication port 260 for relaying the liver is provided.

In addition, the post-treatment unit 300 for blocking air is communicated with the pyrolysis furnace 100 disposed at the bottom thereof, and the function of the air-blocking post-treatment unit 300 communicates with the recycled products pyrolyzed from the pyrolysis furnace 100 to the outside. It is to provide that only the pyrolyzed recycled product is leaked while blocking the outside air entering the pyrolysis furnace 100 during the outflow.

To this end, the air blocking after-treatment unit 300 is sealed in the upper side through the opening of the upper side of the recycle outlet outlet 310 in communication with the inner pipe 120 for the pyrolysis constituting the pyrolysis furnace 100. 321 is provided, the upper opening and closing means 320 is connected to the upper cylinder 322 is connected to the rear end of the upper sealing plate 321 provided therein, and the lower part of the recycled product outlet 310 The lower side opening / closing means 330 composed of the side sealing plate 331 and the lower side cylinder 332 is installed.

Here, the operation control of the upper opening and closing means 320 and the lower opening and closing means 330 provided at the upper and lower portions of the recycled product outlet 310, although not shown in the drawing, the central control unit for controlling the overall thermal decomposition apparatus of the present invention It may be controlled through or through the manual operation of the operator operating the pyrolysis apparatus of the present invention.

By the way, when the gas in contact with the air of the recycled products (carbon black, iron core, gas) pyrolyzed by the opening of the air blocking post-processing unit 300 may cause a fire and explosion. This is because recycled products are maintained at a high temperature of about 300 ° C. through a recycling process.

In order to prevent such a risk, the cooling transfer path 400 is communicated between the pyrolysis furnace 100 and the air blocking post-processing unit 300 disposed at the lowermost portion, and the cooling transfer path 400 of the cooling transfer path 400 is connected. Its function is to cool pyrolyzed recycled products that are maintained at a high temperature of about 300 ° C below a certain temperature (for example, below 50 ° C). 100) and the structure is the same.

That is, the configuration of the cooling transfer path 400 is a relay communication port of the pyrolysis furnace 100 to cool the recycled high-temperature recycled products continuously introduced from the relay communication port 180 of the connected pyrolysis furnace 200 under a vacuum atmosphere ( Since the cooling inner tube 420 inside the cooling exterior 410 through which the 180 penetrates is embedded, the outer refrigerant body flow path 421, which is a passage through which the refrigerant body (water or oil) can flow, has an internal and external cooling tube. It is formed between 410 and 420.

At this time, the internal cooling pipe 420 is in communication with the relay communication port 180, the recycled product pouring from the relay communication port 180 is to be accumulated, from the refrigerant body flowing through the outer refrigerant body flow path 421 The generated cold air is delivered to the recycled goods placed inside the cooling inner tube 420 to provide cooling.

In addition, the tubular outer coolant supply unit 450 communicates with the cooling appearance 410 so that the coolant flowing through the outer coolant flow path 421 is circulated. The inlet control valve 451 is connected to one side of the outer coolant supply unit 450 so as to control the outlet, and the outflow control valve 452 is connected to the other side of the outer coolant supply unit 450.

In addition, a cooling shaft 430 provided with a transfer screw 431 on the outside thereof is embedded in the inner tube 420 for cooling so that the recycled product introduced through the relay communication port 260 communicated with the inner tube 420 for cooling. At this time, the driving motor 440 is connected to one end of the rotation shaft 430 to provide a rotation.

In addition, the inner refrigerant body supply unit 460 is provided to transfer the cool air to the recycled goods accumulated in the inner tube 420 for cooling through the rotation shaft 430. The configuration of the inner refrigerant body supply unit 460 provided therein is, An inner coolant flow path 432 is formed inside the rotation shaft 430, and a transfer pipe 461 is provided in the formed inner coolant flow path 432. In addition, the inner refrigerant body inlet pipe 462 for introducing the refrigerant body toward the transfer pipe 461 is connected, and the refrigerant body flowing along the inner refrigerant body flow path 432 of the rotating shaft 430 to the outside flows out. It consists of an internal refrigerant body outflow pipe 463. Here, a part of the inner refrigerant body inflow pipe 462 is provided inherently in the inner refrigerant body outflow pipe 463 as shown in the figure.

Here, the rotation shaft 430 connected to the inner refrigerant body supply unit 460 should rotate to transport the recycled product, and the inner refrigerant body supply unit 160 is fixed to safely supply the refrigerant body to the rotation shaft 430. It is desirable to be.

For this reason, between the rotating shaft 430 and the inner heat medium supply unit 460 is provided by connecting the rotary joint 470 to one side rotatably connected, the other side is fixedly connected.

In this case, the rotary joint 470 connected to the relay is formed through the flow path 471 therein, one end of the through-formed flow path 471 to the inner coolant flow path 432 in which the transfer pipe 461 is embedded By connecting the relay shaft 430 to the rotating shaft 430 and connecting the other end of the flow path 471 formed therein with the inner refrigerant body outlet pipe 463 having the inner refrigerant body inlet pipe 462 therein, the rotary The rotating shaft 430 of the inner coolant flow path 432 connected to one end of the flow path 471 of the joint 470 is rotatably connected, and the inner coolant inlet pipe 462 is embedded therein. The refrigerant body outlet pipe 463 is connected to be fixed stably.

In addition, the recycled product outlet 310 constituting the post-treatment unit 300 for air blocking communicates with the inner tube 420 for cooling to provide the recycled product to the outside.

In this way, the operation of the waste rubber pyrolysis apparatus of the present invention constituted, first, the waste rubber shredded to a predetermined size through a plurality of shredder is continuously introduced through the hopper (1) to seal the upper side of the waste rubber inlet 210 Stacked on the plate (221).

Subsequently, when the amount set in advance by the control of the central control unit is accumulated in the upper side sealing plate 221, by operating the upper opening and closing means 220, the upper side closing plate 221 by sliding the waste rubber inlet 210 Open the top of the

When the waste rubber accumulated in the upper side sealing plate 221 by the opening of the upper side closing plate 221 is dropped and placed on the lower side closing plate 231, the central control unit is located on the upper side of the waste rubber inlet 210. By operating the opening and closing means 220 to slide the open upper side sealing plate 221 to close the upper portion of the waste rubber inlet 210.

At this time, since the vacuum pump 140 provided on the lower side of the upper sealing plate 221 of the waste rubber inlet 210 is in operation, it sucks the air introduced together with the waste rubber from the outside to maintain the vacuum atmosphere. .

Thereafter, the central control unit operates the lower opening / closing means 230 of the waste rubber inlet 210 to slide the lower side sealing plate 231 to open the lower portion of the waste rubber inlet 210.

Waste rubber crushed into the inner pipe 220 for thermal decomposition of the thermal decomposition furnace 200 in communication with the waste rubber inlet 210 is dropped by the lower opening of the waste rubber inlet 210. At this time, since the lower portion of the waste rubber inlet 210 is opened and the vacuum pump 240 is in a state of being operated, vacuum is also removed from the inside of the pyrolysis furnace 200 by removing the air remaining in the inner pipe 120 for pyrolysis. Provide the atmosphere to be maximized.

In addition, the central control unit sliding the lower side closing plate 231 by operating the lower opening and closing means 230 when the amount of the predetermined waste rubber is accumulated in the upper side closing plate 221 of the waste rubber inlet 210. By closing the lower portion of the waste rubber inlet 210 by moving, and at the same time operating control the upper opening and closing means 220 by sliding the upper side closing plate 221 to open the upper portion of the waste rubber inlet 210 Repeat.

As such, the central control unit controls the upper opening / closing means 220 and the lower opening / closing means 230 of the waste rubber inlet 210 to be selectively opened and closed to continuously inject the waste rubber into the pyrolysis inner pipe 120. ), The waste rubber is provided so that only the waste rubber is input at a predetermined interval while the outside air is removed.

Waste rubber continuously introduced into the inner pipe 120 for pyrolysis is transferred from one side of the inner pipe 120 for pyrolysis to the other side by a transfer screw 131 of the rotation shaft 130 rotated by the drive motor 140.

At this time, the high temperature heat medium through the outer heat medium supply unit 150 is circulated and flows along the outer heat medium flow path 121 formed between the pyrolysis outer shell 110 and the inner pipe 120 for pyrolysis. The heat of the high temperature is conducted to 120 to thermally decompose the waste rubber moved by the transfer screw 131.

At this time, the high temperature heat medium flows out through the intrinsic transfer pipe 161 from the rotating shaft 130, and the high temperature heat medium circulates through the inner heat medium flow path 132 of the rotating shaft 130. Therefore, the high temperature heat is transferred to the waste rubber accumulated in the inner pipe 120 for pyrolysis through the rotation shaft 130 to shorten the pyrolysis time, thereby reducing the number of pyrolysis furnaces 100 or pyrolysis furnaces 100. There is an advantage that the length of) can be shortened.

As such, the decomposition gas, which is one of the recycled products pyrolyzed in the pyrolysis furnace 100, is exhausted to the outside through a separate pipe communicating with the inner pipe 120 for pyrolysis, and the carbon black or iron core, which is the remaining of the recycled products, is pyrolysis furnace 100. It is dropped toward the cooling inner pipe 420 of the cooling feed path 400 through the relay communication port 180 of the inner pipe 120 for pyrolysis.

The recycled product dropped by the transfer screw 431 of the rotation shaft 430 rotated by the drive motor 440 also in the cooling inner tube 420 of the cooling transfer path 400 is provided at one side of the cooling inner tube 420. It is transferred to the other side.

At this time, the coolant is circulated through the coolant flow path 421 formed between the outer coolant 410 and the coolant inner tube 420 through the outer coolant supply unit 450, as well as inside the rotating shaft 430. Since the coolant is circulated in the inner coolant flow path 432 which is a space, the high temperature recycled goods conveyed from the cooling inner tube 420 are rapidly cooled.

Thereafter, the recycled goods that are cooled and transported in the inner tube 420 for cooling are dropped through the recycled product outlet 310 of the post-treatment unit 300 for blocking air. At this time, since the upper side sealing plate 321 installed in the recycled product outlet 310 is in an open state, and the lower side sealing plate 331 is in a closed state, the recycled products dropped are accumulated in the lower side sealing plate 331.

Subsequently, the central control unit controls the upper opening / closing means 320 to slide the upper side sealing plate 321 when a predetermined amount of recycled product is accumulated in the lower side sealing plate 331 of the recycling outlet 310, thereby sliding the upper side sealing plate 321. The upper portion of the outlet 310 is closed.

Subsequently, the central control unit operates the lower opening / closing means 330 of the recycled product outlet 310 to slide the lower side sealing plate 331 to open the lower part of the recycled product outlet 310 to discharge the cooled recycled product to the outside. do.

As such, when the recycled product is discharged through the recycled product outlet 310, the cooling path through the recycling outlet 400 and the recycled product outlet 310 are blocked by the upper side sealing plate 321 for cooling through the recycled product outlet 310. By blocking the entrance of the outside air toward the vacuum conveying path 400, it provides a cooling operation process of the high temperature recycled products under the vacuum atmosphere to minimize the risk of explosion.

As such, the central control unit selectively opens and closes the upper opening / closing means 320 and the lower opening / closing means 330 of the recycling outlet 310 so as to repeatedly carry out the above-described discharge process of the recycled product. It can be continuously discharged to the outside.

1 is a schematic system configuration diagram showing a recycling system of waste rubber to which the pyrolysis apparatus for waste rubber of the present invention is applied;

2 is a view showing a pyrolysis device for waste rubber of the present invention,

3 is a sectional view showing the main portion of the pyrolysis furnace in detail in FIG. 2;

4 is a sectional view showing the main parts of the pretreatment for removing air in the configuration of FIG. 2;

5 and 6 are main cross-sectional views illustrating a cooling transfer path and an air blocking post-processing unit in the configuration of FIG. 2.

<Code Description of Main Parts of Drawing>

1: Hopper 100: pyrolysis furnace

110: appearance of pyrolysis 120: inner tube for pyrolysis

121: outer heating medium flow path 130,430: rotating shaft

131,431: Transfer screw 140,440: Drive motor

150: outer heat medium supply unit 151,451: inlet control valve

152,452: outflow control valve 160: inner heat medium supply

161,461: transfer pipe 162: inner heat medium inlet pipe

163: inner heat medium outflow pipe 170,470: rotary joint

171,471: Inflow 172,472: Outflow

180: relay communication port 200: pre-treatment for removing air

210: waste rubber inlet 220,320: upper side opening and closing means

221,321: Upper side sealing plate 222,322: Upper side cylinder

230,330: lower side opening and closing means 231,331: lower side sealing plate

232,332: lower cylinder 240: vacuum pump

300: post-processing unit 310 for air blocking 310: recycled product outlet

400: Cooling transfer path 410: Cooling appearance

420: Inner tube for cooling 421: Outer coolant flow path

450: outer coolant supply unit 460: inner coolant supply unit

462: inner refrigerant body inlet tube 463: inner refrigerant body outlet tube

Claims (11)

In constructing a waste rubber pyrolysis apparatus for thermally decomposing waste rubber transferred to a pyrolysis furnace 100 through high-temperature heat transfer and converting it into recycled products, The pyrolysis furnace 100, An external appearance 110 for pyrolysis; An inner tube 120 for pyrolysis, which is embedded in the outer pyrolysis exterior 110 to form an outer heat medium flow path 121; A rotation shaft 130 which is provided in the inner pipe 120 for pyrolysis and having a transfer screw 131 on the outside thereof; A drive motor 140 for rotating the pivot shaft 130; The outer heat medium supply unit 150 for circulating the heat medium through the outer heat medium flow path 121 formed between the outer pyrolysis inner pipe 110 and the inner pipe 120 for pyrolysis to transfer high temperature heat toward the inner pipe 120 for pyrolysis. )Wow; An inner heat medium supply unit 160 connected to the rotation shaft 130 to transfer high temperature heat from the rotation shaft 130 toward the inner tube 120 for pyrolysis; The rotary shaft (130) and the inner heat medium supply unit 160 is connected between the rotary shaft 130 is a rotary joint (170) rotatably connected; waste rubber pyrolysis device, characterized in that consisting of. The method of claim 1, The inner heat medium supply unit 160, An inner heating medium flow path 132 formed in the rotation shaft 130; A transfer pipe 161 provided in the inner heat medium flow path 132; An inner heat medium inlet pipe 162 for introducing a heat medium toward the transfer pipe 161; Pyrolysis for waste rubber, characterized in that consisting of; inner heat medium supply unit 160 consisting of an inner heat medium outlet pipe 163 for flowing out the heat medium flowing along the inner heat medium flow path 132 of the rotation shaft 130 to the outside Device. delete The method of claim 1, A pre-treatment unit 200 for removing the air when the waste rubber is introduced into the pyrolysis furnace 100 and the waste rubber is continuously introduced together with the air from the outside; In communication with the other side of the pyrolysis furnace 100, when the pyrolyzed recycled product from the pyrolysis furnace 100 is leaked to the outside, the outside air is prevented from being introduced into the pyrolysis furnace 100 to allow only the pyrolyzed recycled product to flow out. Pyrolysis device for waste rubber, characterized in that it comprises a; The method of claim 4, wherein The air removal pretreatment unit 200, Waste rubber inlet 210 is in communication with the pyrolysis furnace 100; It is installed on top of the waste rubber inlet 210, sliding the upper side sealing plate 221 and the upper side sealing plate 221 for opening or closing the inside of the waste rubber inlet 210 by sliding movement. An upper opening / closing means 220 including an upper cylinder 222 for moving; It is installed below the waste rubber inlet 210, sliding the lower side sealing plate 231 and the lower side sealing plate 231 for opening or closing the interior of the waste rubber inlet 210 by sliding movement. The lower side opening and closing means 230 including a lower side cylinder 232 to move; waste rubber pyrolysis device, characterized in that consisting of. The method of claim 5, A vacuum pump installed between the upper opening / closing means 220 and the lower opening / closing means 230 respectively installed at the waste rubber inlet 210 to remove air remaining in the waste rubber inlet 210; 240); Pyrolysis device for waste rubber comprising a. The method of claim 5, The air blocking post-processing unit 300, A recycled product outlet 310 in communication with the pyrolysis furnace 100; It is installed on the upper part of the recycled product outlet 310, and sliding the upper side sealing plate 321 and the upper side sealing plate 321 for opening or blocking the inside of the recycled product outlet 310 by sliding movement. An upper opening / closing means 320 including an upper cylinder 322; The lower side sealing plate 331 and the lower side sealing plate 331 which is installed at the lower portion of the recycled product outlet 310 to be opened or blocked to the outside of the recycled product outlet 310 by sliding movement for sliding movement. The lower side opening and closing means (330) comprising a lower side cylinder (332); waste rubber pyrolysis device, characterized in that consisting of. The pyrolysis outer shell 110, the pyrolysis inner tube 120, which is inherent in the pyrolysis outer shell 110, to form the outer heat medium flow passage 121, and the pyrolysis inner tube 120, which is inherent in the pyrolysis inner tube 120. Rotating shaft 130 provided with a transfer screw 131, a drive motor 140 for rotating the rotating shaft 130, and the outer heating medium formed between the thermal decomposition exterior 110 and the thermal decomposition inner tube 120 The rotating shaft 130 is connected to the outer heating medium supply unit 150 and the rotating shaft 130 to supply and heat the heating medium through the flow path 121 to transfer the high temperature heat toward the inner pipe 120 for the thermal decomposition. A pyrolysis furnace (100) having an inner heat medium supply unit (160) for transferring high temperature heat toward the inner pipe (120) for pyrolysis; The waste rubber inlet 210 communicated with the pyrolysis furnace 100, and the upper portion of the waste rubber inlet 210, which is installed at an upper portion of the waste rubber inlet 210 by sliding movement. The upper side opening and closing means 220 including the side sealing plate 221 and the upper cylinder 222 for sliding the upper side sealing plate 221, and to be installed in the lower portion of the waste rubber inlet 210 The lower side includes a lower side sealing plate 231 for opening or closing the inside of the waste rubber inlet 210 by sliding movement and a lower side cylinder 232 for slidingly moving the lower side sealing plate 231. It is installed between the opening and closing means 230, the upper opening and closing means 220 and the lower opening and closing means 230 respectively installed in the waste rubber inlet 210, remaining in the waste rubber inlet 210 Having a vacuum pump 240 for removing air A pretreatment unit 200 for removing air; The recycled product outlet 310 communicated with the pyrolysis furnace 100 and the upper side sealing plate installed at an upper portion of the recycled product outlet 310 to open or block the inside of the recycled product outlet 310 by sliding movement. 321 and the upper opening and closing means 320 including the upper cylinder 322 for sliding the upper side sealing plate 321, and is installed in the lower portion of the recycled product outlet 310, Lower side opening and closing means 330 including a lower side sealing plate 331 for opening or blocking the recycled product outlet 310 to the outside, and a lower side cylinder 332 for slidingly moving the lower side sealing plate 331. An after-treatment unit 300 for blocking air; In communication with the pyrolysis furnace 100 and the post-processing unit 300 for blocking air, an external coolant flow path 421 is formed in the cooling exterior 410 and the cooling exterior 410. Cooling inner tube 420, the inner shaft for cooling 420, the rotating shaft 430 provided with a transfer screw 431 on the outside, and the drive motor for rotating the rotating shaft 430 ( 440 and an external cold air circulating through the refrigerant body flow path 421 formed between the cooling exterior 410 and the cooling inner tube 420 to transfer cold air toward the cooling inner tube 120. The media supply unit 450, the recycled product outlet 310 is a waste rubber pyrolysis device, characterized in that consisting of a cooling feed path 400 in communication with the cooling inner pipe (420). The method of claim 8, And an inner refrigerant body supply unit (460) connected to the rotating shaft (430) to transfer cold air from the rotating shaft (430) toward the cooling inner tube (420). The method of claim 9, The inner refrigerant supply unit 460 is, An inner refrigerant body flow path 432 formed in the rotation shaft 430; A transfer pipe 461 provided in the inner coolant flow path 432; An inner refrigerant body inlet tube 462 for introducing a refrigerant body toward the transfer tube 461; A pyrolysis device for waste rubber, comprising: an inner refrigerant body outlet pipe 463 for flowing out a refrigerant body flowing along an inner refrigerant body flow path 432 of the rotation shaft 430. The method of claim 9, And a rotary joint (470) connecting the rotating shaft (430) and the inner coolant supply unit (460) to the rotating shaft (430) to be rotatably connected to the rotary shaft (430).

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