KR20230156492A - Pyrolysis apparatus for plastic wastes - Google Patents

Abstract

The present invention is suitable for intermittent operation in accordance with small-scale or each factory's own waste synthetic resin recycling system, and furthermore, even when the collected amount of waste synthetic resin is large, continuous operation can be performed while maintaining the thermal power of the burner. It relates to a waste synthetic resin pyrolysis device that can reduce fuel consumption and increase pyrolysis efficiency, comprising a gas combustion chamber whose interior is heated by the thermal power of a burner, and a hot air inlet at the lower left side communicating with the gas combustion chamber to generate thermal decomposition power of the burner. The inside is heated by receiving the heat, and the heated inside heat is discharged through the hot air outlet on the upper right side, and the decomposition combustion chamber is formed through a tank insertion hole with a circular opening on the upper surface, and the decomposition combustion chamber can be inserted into and out of the tank insertion port of the decomposition combustion chamber. A pyrolysis tank is installed to pyrolyze the waste synthetic resin by receiving heat from the decomposition and combustion chamber after the waste synthetic resin is introduced and accommodated therein, and a filter to produce recycled oil by filtering and condensing the pyrolyzed gas generated from the pyrolysis tank. and a condenser, which is fixedly installed in an annular shape at the upper part of the tank insertion port of the decomposition combustion chamber, and is opened by closing the open tank insertion port when the pyrolysis tank is withdrawn so that continuous operation is performed while maintaining the thermal power of the burner. It is characterized in that it further includes an air film forming part that forms an air film to block the emission of.

Description

Waste synthetic resin pyrolysis device {PYROLYSIS APPARATUS FOR PLASTIC WASTES}

The present invention relates to a waste synthetic resin pyrolysis device that pyrolyzes waste synthetic resin to produce recycled oil.

As industrialization accelerates and living standards improve, demand for energy and resources is increasing. Recently, as resource and energy shortages have worsened, waste has been approached from the perspective of a resource.

In particular, the use of plastics in Korea is rapidly increasing as lifestyles become westernized. Among them, Korea's thermoplastic resin production is approximately 10 million tons, ranking 5th in the world, and thermoplastic resins discharged as waste annually are approximately 4 million tons, which is a huge amount entering the environment. It is becoming.

50% of the above-mentioned thermoplastic resin waste is incinerated, 15% is landfilled, and the remaining 35% is recycled. Thermoplastic resins have a fast combustion rate, so if sufficient oxygen is not supplied, there is a high probability of incomplete combustion. In addition, PVC contained in mixed thermoplastic resin waste is known to be the cause of HCl and dioxin emissions during the incineration process.

Therefore, despite its advantages such as high calorific value, incineration of waste thermoplastic resin is not considered a desirable alternative due to management difficulties. On the other hand, due to the fatal disadvantage of landfill in that it does not utilize resources, landfill disposal of combustible waste is being banned worldwide, and Korea is also limiting the role of landfill to landfilling incineration ash and non-recyclable waste.

Generally, recycling is divided into material recycling and chemical recycling, but recently, energy recycling is also included as a new recycling category. The material recycling is a form of recycling that converts raw materials through injection after going through a melting process or produces products through a molding process. However, because the purity is low, it is impossible to reduce it to a single expensive raw material, and demand and preference are low due to problems such as the color of the product. Chemical recycling includes pyrolysis and gasification, of which pyrolysis has recently made significant technological progress, and the economic feasibility of pyrolysis is sufficiently secured as the price of oil continues to rise.

Thermal decomposition of waste synthetic resin is a process in which waste synthetic resin is thermally decomposed by externally supplied energy and converted into gaseous products, liquid products, and solid products. The gaseous product contains CH ₄ , C ₂ H ₆ , C ₃ H ₈ as main components and can be used as fuel gas, and the liquid product is a hydrocarbon compound with a carbon number of 15 or less and can be used as heavy oil or higher oil. In addition, the solid product is the main ingredient and can be used as an alternative fuel to coal, and can be used as a carbon source such as carbon black, activated carbon, and carbon nanotubes.

Thermal decomposition of waste synthetic resin can be divided into high-temperature and low-temperature reactions depending on the reaction temperature, and the type and amount of products produced vary depending on the reaction temperature. For example, the higher the temperature reaction, the higher the production rate of gaseous products, and the lower the production rate of liquid and solid products, and the opposite phenomenon is observed in low-temperature reactions. Among these, the main purpose of high-temperature pyrolysis with a reaction temperature of 600℃ or higher is to generate fuel gas, but it is inferior in fuel gas generation compared to gasification, so it is not widely used in the field.

Therefore, most waste synthetic resin pyrolysis devices currently operate at low temperatures below 600°C and are installed and operated for the purpose of generating fuel oil, that is, converting it into oil. In this way, low-temperature pyrolysis devices are advantageous for generating fuel oil, and thermoplastic resin is a material suitable for meeting this purpose.

The pyrolysis device for waste synthetic resin according to the prior art includes 'Simple pyrolysis device for waste synthetic resin' in Registered Utility Model Publication No. 20-0397138, 'Pyrolysis oil regeneration device for waste synthetic resin' in Registered Utility Model Publication No. 20-0299241, and Public Patent Publication No. 20-0299241. There is ‘waste synthetic resin pyrolysis device’ under No. 10-2008-0087607.

This conventional waste synthetic resin pyrolysis device is designed to continuously pyrolyze large quantities of materials and is not suitable for intermittent operation for small-scale use or for use as a recycling system for each factory's own waste synthetic resin. In particular, foreign matter, chlorine substances, sludge, etc. generated during thermal decomposition of waste synthetic resin, which has been a problem in the past, adheres to the inside of the device, causing a decrease in thermal efficiency, difficulty in management, and a cause of failure.

In order to solve the above problems, the 'waste synthetic resin pyrolysis device' of Patent Registration No. 10-1734033 was developed, as shown in Figures 1 and 2. Specifically, the waste synthetic resin pyrolysis device according to the prior art has a gas combustion chamber 10, the inside of which is heated by the thermal power of the burner 11, and is in communication with the gas combustion chamber 10 to transmit the thermal power of the burner 11. A decomposition and combustion chamber (20) whose interior is heated, and a pyrolysis tank installed in the decomposition and combustion chamber (20), in which waste synthetic resin is introduced and accommodated, and then receiving heat from the decomposition and combustion chamber (20) to thermally decompose the waste synthetic resin. (30), and a filter (40) and a condenser (50) for producing recycled oil by filtering and condensing the generated gas pyrolyzed from the pyrolysis tank 30. At this time, the pyrolysis tank 30 includes a tank frame 31, a plurality of pyrolysis containers 32 accommodated inside the tank frame 31, and an upper part that is openable and installed on the top of the tank frame 31. Includes cover (33).

However, the waste synthetic resin pyrolysis device according to the prior art as described above is suitable for intermittent operation in accordance with small-scale or each factory's own waste synthetic resin recycling system, but is not suitable for continuous operation when a rather large amount of waste synthetic resin is accumulated. The problem is that it doesn't fit.

In other words, even if the amount of waste synthetic resin collected is small even in a small factory, if pyrolysis occurs each time it is collected, the burner 11 must be operated to increase thermal power, so based on the tank frame 31, pyrolysis is performed 2 to 3 times rather than once. This is because thermal decomposition to a certain extent can reduce fuel consumption.

In this case, as shown in FIG. 3, the tank frame 31 is fixedly installed in the decomposition and combustion chamber 20, so in order to take out the plurality of pyrolysis vessels 32 from the tank frame 32, the upper cover 33 must be opened. To open the upper cover 33, the operation of the burner 11 is stopped, the upper cover 33 is opened only after the heat in the decomposition combustion chamber 20 has sufficiently subsided, and a plurality of pyrolysis containers are removed from the tank frame 32. After taking out (32) and discharging the sludge remaining after pyrolysis, there is a problem in that a plurality of pyrolysis vessels (32) must be newly inserted into the tank frame (32) to restart the burner (11) to increase the thermal power.

The purpose of the present invention, which was devised to solve the above problems, is to be suitable for intermittent operation in accordance with small-scale or each factory's own waste synthetic resin recycling system, and furthermore, even when the collected amount of waste synthetic resin is large, the burner The aim is to provide a waste synthetic resin pyrolysis device that can operate continuously while maintaining thermal power, thereby reducing fuel consumption and increasing pyrolysis efficiency.

Other objects, specific advantages and novel features of the present invention will become more apparent from the following detailed description and preferred embodiments taken in conjunction with the accompanying drawings.

In order to achieve the above object, the waste synthetic resin pyrolysis device according to the present invention has a gas combustion chamber whose interior is heated by the thermal power of a burner, and a hot air inlet at the lower left side communicates with the gas combustion chamber to receive the thermal power of the burner. The interior is heated, and the heated interior heat is discharged through a hot air outlet on the upper right side, and a decomposition combustion chamber through which a tank insertion port having a circular opening on the upper surface is formed, and a tank insertion port of the decomposition combustion chamber is installed so as to be able to enter and exit, A pyrolysis tank that pyrolyzes the waste synthetic resin by receiving heat from the decomposition combustion chamber after the waste synthetic resin is introduced and accommodated therein, and a filter and condenser that filter and condense the pyrolyzed gas from the pyrolysis tank to produce recycled oil. It is fixed and installed in an annular shape at the upper part of the tank insertion port of the decomposition combustion chamber, and when the pyrolysis tank is withdrawn so that continuous operation is performed while maintaining the thermal power of the burner, the open tank insertion port is closed to release heat. It is characterized in that it further includes an air film forming part that forms an air film to block it.

In addition, the pyrolysis tank has a cylindrical shape with a hollow interior, is installed to be retractable and removable above the decomposition and combustion chamber so that the open upper part protrudes outward from the decomposition and combustion chamber, and is a tank frame in which the waste synthetic resin is accommodated. And, it is coupled to the upper part of the tank frame so that it can be opened and closed, a locking ring is formed on the upper surface to catch the lifting wire, and an upper cover connected to the filter to transmit the generated gas to the filter. .

In addition, the pyrolysis tank includes a first pyrolysis tank and a second pyrolysis tank, and the first pyrolysis tank is pulled upward from the decomposition combustion chamber after pyrolysis of the first pyrolysis tank while the thermal power of the burner is maintained. and introducing the second pyrolysis tank, which is on standby, into the decomposition and combustion chamber to continuously perform pyrolysis.

In addition, the air film forming part is fixedly installed in an annular shape at the upper part of the tank insertion port of the decomposition combustion chamber, includes an insulating member that blocks heat transfer from the decomposition combustion chamber, and is annularly installed on an upper part of the insulating member, and is provided with a high pressure from the air compressor. An air supply pipe that receives air, and an inner circumferential surface of the air supply pipe inclined downward to face the hot air discharge port of the decomposition combustion chamber, are installed on the inner peripheral surface of the air supply pipe to block the release of hot air by closing the open tank insertion port. It is characterized by including an air nozzle that sprays air to form an air film.

The waste synthetic resin pyrolysis device according to the present invention is suitable for intermittent operation in accordance with small-scale or each factory's own waste synthetic resin recycling system, and further, maintains the thermal power of the burner even when the collected amount of waste synthetic resin is large. Continuous operation can be performed, which has the effect of reducing fuel consumption and increasing pyrolysis efficiency.

In particular, when withdrawing the pyrolysis tank while maintaining the thermal power of the burner, the safety of the work can be ensured by forming an air film to block the release of heat by closing the open tank insertion port of the decomposition combustion chamber through the air film forming part. .

1 is a configuration diagram showing a pyrolysis device for waste synthetic resin according to the prior art;
Figure 2 is a side cross-sectional view of the main part of the decomposition combustion chamber and the pyrolysis tank in the embodiment of Figure 1;
Figure 3 is a main sectional side view showing the process of removing the pyrolysis vessel after opening the upper cover of the pyrolysis tank after completion of pyrolysis in the embodiment of Figure 2;
Figure 4 is a configuration diagram showing an embodiment of a waste synthetic resin pyrolysis device according to the present invention;
Figure 5 is a side cross-sectional view of the main portion of the decomposition combustion chamber and the pyrolysis tank in the embodiment of Figure 4;
Figure 6 is a main sectional side view showing the state in which the first pyrolysis tank is pulled out from the decomposition and combustion chamber in the embodiment of Figure 5;
Figure 7 is a side cross-sectional view showing the main part of the second pyrolysis tank from the embodiment of Figure 6 in a state in which the second pyrolysis tank is moved upward to the decomposition and combustion chamber;
Figure 8 is a side cross-sectional view showing the main part of the second pyrolysis tank in the embodiment of Figure 7 when it is inserted into the tank insertion port of the decomposition and combustion chamber.

Hereinafter, a preferred embodiment of the waste synthetic resin pyrolysis device according to the present invention will be described in detail with reference to the attached drawings.

As shown in FIGS. 4 to 8, the waste synthetic resin pyrolysis device according to the present invention includes a gas combustion chamber 100, a decomposition combustion chamber 200, a pyrolysis tank 300, a filter 400, a condenser 500, and an air film formation. Includes part 600. The pyrolysis tank 300 includes a tank frame 310 and an upper cover 320, and the pyrolysis tank 300 is individually divided into a first pyrolysis tank 301 and a second pyrolysis tank 302 for the decomposition. It is installed to be drawn in and out of the combustion chamber 200. Additionally, the air film forming part 600 may include an insulation member 610, an air supply pipe 620, and an air nozzle 630.

The inside of the gas combustion chamber 100 is heated by the thermal power of the burner 110, as shown in FIG. 4. The burner 110 is ignited by injected gas to generate thermal power, and can also receive and reuse waste gas remaining after thermal decomposition of waste synthetic resin. This gas combustion chamber 100 is connected to the hot air inlet 210 of the decomposition combustion chamber 200, which will be described later, and transmits the generated thermal power.

As shown in FIGS. 4 to 8, the decomposition combustion chamber 200 has a heat inlet 210 at the lower left side in communication with the gas combustion chamber 100, and the inside is heated by receiving the thermal power of the burner 110, and the upper right side The heated internal heat is discharged through the hot air outlet 220, and a tank insertion hole 230 with a circular opening is formed through the upper surface. This decomposition combustion chamber 200 is a furnace formed integrally with the gas combustion chamber 100, and receives the thermal power generated through the burner 110 of the gas combustion chamber 100 and transfers it to the pyrolysis tank 300, which will be described later.

As shown in FIGS. 4 to 8, the thermal decomposition tank 300 is installed to be retractable and removable at the tank insertion port 230 of the decomposition and combustion chamber 200, and waste synthetic resin (not shown) is introduced and accommodated therein and then decomposed. The waste synthetic resin is thermally decomposed by receiving heat from the combustion chamber 200. When the waste synthetic resin is thermally decomposed in the pyrolysis tank 300, it is converted into gaseous products, liquid products, and solid products. The gaseous product is mainly composed of CH ₄ , C ₂ H ₆ , and C ₃ H ₈ and can be used as fuel gas, and the liquid product is a hydrocarbon compound with a carbon number of 15 or less and can be used as heavy oil or higher oil. In addition, the solid product is the main ingredient and can be used as an alternative fuel to coal, and can be used as a carbon source such as carbon black, activated carbon, and carbon nanotubes.

Here, the solid product remains inside the pyrolysis tank 300 as sludge, and the evaporated liquid product and gaseous product are filtered through a filter 400, which will be described later, and then passed through a condenser 500, and the liquid product is converted into recycled oil. produced, the gaseous product can be collected as fuel gas, or the waste gas can be reused to generate thermal power in the burner 110, as shown in FIG. 4.

That is, as shown in FIG. 4, the filter 400 and the condenser 500 filter the pyrolyzed gas generated from the pyrolysis tank 300 and then condense it to produce recycled oil. Since the filtration and condensation process of the filter 400 and the condenser 500 is a widely known technology, detailed description thereof will be omitted.

As described above, the general thermal decomposition process of the composite resin thermal decomposition device and the processing process of the products generated after thermal decomposition were examined. Here, solid products remain inside the pyrolysis tank 300 and cause a decrease in thermal efficiency, difficulty in management, and breakdown. The present invention seeks to solve this problem through a pyrolysis tank 300 with a unique configuration. In addition, even when the collected amount of waste synthetic resin is large, continuous operation can be performed while maintaining the thermal power of the burner 110, thereby reducing fuel consumption, and the pyrolysis tank 300 is disassembled to increase pyrolysis efficiency. It has the feature of being installed so that it can be drawn in and out of the combustion chamber 200.

First, in order to perform continuous operation, the specific configuration of the pyrolysis tank 300 includes a tank frame 310 and an upper cover 320 as shown in FIGS. 4 to 8. The tank frame 310 has a cylindrical shape with a hollow interior, and is installed to be retractable and removable above the decomposition and combustion chamber 200 so that the open upper part protrudes outward from the decomposition and combustion chamber 200, and the spent synthetic resin is inside. In addition, the upper cover 320 is coupled to the upper part of the tank frame 310 so that it can be opened and closed, and a hook 321 is formed on the upper surface so that the lifting wire 322 is caught, and the generated gas is It is connected to the filter 400 to deliver it to the filter 400.

At this time, the pyrolysis tank 300 includes a first pyrolysis tank 301 and a second pyrolysis tank 302, respectively, as shown in FIGS. 4 to 8, and the thermal decomposition tank 300 is maintained while the thermal power of the burner 110 is maintained. After thermal decomposition of the first pyrolysis tank 301, the first pyrolysis tank 301 is withdrawn upward from the decomposition and combustion chamber 200, and the waiting second pyrolysis tank 302 is placed in the decomposition and combustion chamber 200. Thermal decomposition can be carried out continuously by introduction. In order to pull in and out of the first pyrolysis tank 301 and the second pyrolysis tank 302, a lifting wire 322 is installed through a crane (not shown) through a hook 321 formed on each upper cover 320. After fixing it, you can raise, lower, and move it.

That is, the waste synthetic resin pyrolysis device according to the present invention installs the pyrolysis tank 300 to be retractable from the decomposition and combustion chamber 200, and divides it into a first pyrolysis tank 301 and a second pyrolysis tank 302. Since pyrolysis can be performed efficiently, fuel consumption can be reduced and pyrolysis efficiency can be improved through continuous operation while maintaining the thermal power of the burner 110 even when the collected amount of waste synthetic resin is large.

However, when the thermal decomposition tank 300 is withdrawn while maintaining the thermal power of the burner 110, high-temperature heat from the inside of the decomposition combustion chamber 200 is exposed upward through the open tank insertion hole 230. This raises the risk of burns to external workers or external explosions.

Therefore, in order to prevent this, it may further include an air film forming part 600. Specifically, the air film forming part 600 is connected to the tank insertion port 230 of the decomposition combustion chamber 200 as shown in FIGS. 6 and 7. ) It is fixedly installed in an annular shape at the top, and when the pyrolysis tank 300 is withdrawn so that continuous operation is performed while maintaining the thermal power of the burner 110, the open tank insertion port 230 is closed to release heat. Forms an air film to block.

Specifically, the air film forming part 600 is fixedly installed in an annular shape on the upper part of the tank insertion port 230 of the decomposition and combustion chamber 200, as shown in FIGS. 5 to 8, and transfers heat from the decomposition and combustion chamber 200. an insulating member 610 that blocks the air, an air supply pipe 620 installed in an annular shape on top of the insulating member 610 and receiving high-pressure air from an air compressor 621, and the decomposition combustion chamber 200. It is installed on the inner peripheral surface of the air supply pipe 620 at an angle downward to face the hot air outlet 220, and sprays the high-pressure air to close the open tank insertion port 230 to block the release of hot air. It includes an air nozzle 630 that forms an air film.

Since the decomposition and combustion chamber 200 is heated up to the tank insertion port 230 due to the high temperature heat transmitted from the burner 110 to the inside, the insulation member 610 is first installed at the top of the decomposition and combustion chamber 200 to supply the It is intended to protect the supply pipe 620 from thermal fatigue by blocking heat transfer to the pipe 620. The supply pipe 620 receives high-pressure air from an air compressor 621 that generates or stores compressed air, and an air nozzle 630 is installed on the inner circumferential surface of the supply pipe 620 to form an open tank insertion port 230. An air film is formed by spraying high-pressure air to close the area. The air nozzle 630 may be provided in one or more plurality, and it is sufficient as long as it can be formed and arranged to block the emission of hot air rising through the open tank insertion hole 230.

As a characteristic configuration, the air injection direction of the air nozzle 630 is important. Basically, the heat inside the decomposition combustion chamber 200 is discharged through the hot air outlet 220 on the upper right, so the air sprayed from the air nozzle 630 It would be desirable to form the air film formed by slanting downward toward the hot air outlet 220. Therefore, the air nozzle 630 is installed inclined downward to face the hot air outlet 220 of the decomposition and combustion chamber 200, so that the internal heat of the decomposition and combustion chamber 200 flows upward, as shown in FIGS. 6 and 7. Even if it rises, it can be naturally discharged through the hot air outlet 220 at a downward angle along the air film formed through the air nozzle 630.

As described above, the waste synthetic resin pyrolysis device according to the present invention is suitable for intermittent operation in accordance with small-scale or each factory's own waste synthetic resin recycling system, and furthermore, even when the collected amount of waste synthetic resin is large, the burner 110 Continuous operation can be performed while maintaining thermal power, which has the effect of reducing fuel consumption and increasing pyrolysis efficiency. In particular, when the pyrolysis tank 300 is withdrawn while maintaining the thermal power of the burner 110, the open tank insertion port 230 of the decomposition combustion chamber 200 is closed through the air film forming portion 600 to release heat. The safety of work can be ensured by forming an air film to block .

The embodiments of the present invention described above and shown in the drawings should not be construed as limiting the technical idea of the present invention. The scope of protection of the present invention is limited only by the matters stated in the claims, and those skilled in the art can improve and change the technical idea of the present invention into various forms. Therefore, such improvements and changes will fall within the scope of protection of the present invention as long as they are obvious to those skilled in the art.

100: gas combustion chamber 110: burner
200: decomposition combustion chamber 210: hot air inlet
220: hot air outlet 230: tank insertion port
300: Pyrolysis tank
301: first pyrolysis tank 302: second pyrolysis tank
310: Tank frame 320: Top cover
321: Hook 322: Elevating wire
400: Filter
500: Condenser
600: Air film forming part 610: Insulating member
620: Air supply pipe 621: Air compressor
630: Air nozzle

Claims (4)

A gas combustion chamber whose interior is heated by the thermal power of the burner,
The heat inlet on the lower left is in communication with the gas combustion chamber and receives the thermal power of the burner to heat the interior, and the heated internal heat is discharged through the heat outlet on the upper right, and a tank insertion hole with a circular opening on the upper surface penetrates. A decomposition combustion chamber formed,
A pyrolysis tank installed to be retractable and removable at the tank insertion port of the decomposition and combustion chamber, and receiving the waste synthetic resin therein, receiving heat from the decomposition and combustion chamber to thermally decompose the waste synthetic resin;
It includes a filter and a condenser that filters the pyrolyzed gas generated from the pyrolysis tank and condenses it to produce recycled oil,
It is fixedly installed in an annular shape at the top of the tank insertion port of the decomposition combustion chamber, and when the pyrolysis tank is withdrawn so that continuous operation is performed while maintaining the thermal power of the burner, the open tank insertion port is closed to block the release of heat. A waste synthetic resin pyrolysis device further comprising an air film forming unit that forms a film.
According to paragraph 1,
The pyrolysis tank is,
A tank frame in a cylindrical shape, the upper part of which is retractable and removable above the decomposition and combustion chamber, protrudes outward from the decomposition and combustion chamber, and the spent synthetic resin is accommodated therein;
A waste synthetic resin, characterized in that it is coupled to the upper part of the tank frame so as to be openable, has a locking ring formed on the upper surface to catch a lifting wire, and includes an upper cover connected to the filter to transmit the generated gas to the filter. Pyrolysis device.
According to paragraph 2,
The pyrolysis tank is,
Includes a first pyrolysis tank and a second pyrolysis tank, respectively,
While the thermal power of the burner is maintained, after thermal decomposition of the first pyrolysis tank, the first pyrolysis tank is withdrawn upward from the decomposition and combustion chamber, and the waiting second pyrolysis tank is introduced into the decomposition and combustion chamber to continuously perform pyrolysis. A waste synthetic resin pyrolysis device characterized in that it performs.
According to paragraph 1,
The air film forming part,
an insulating member fixed and installed in an annular shape at the top of the tank insertion port of the decomposition and combustion chamber, and blocking heat transfer from the decomposition and combustion chamber;
An air supply pipe installed in an annular shape on the upper part of the insulation member and receiving high-pressure air from an air compressor;
An air nozzle is installed on the inner peripheral surface of the air supply pipe at an angle downward to face the hot air outlet of the decomposition combustion chamber, and forms an air film by spraying the high-pressure air to block the release of hot air by closing the open tank insertion port. A waste synthetic resin pyrolysis device comprising:

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