KR20230122364A - Pyrolysis equipment for Ultrasonic waves - Google Patents

Abstract

The present invention relates to an ultrasonic pyrolysis device for polymer waste, and more particularly, an ultrasonic vibration device is installed to promote the thermal decomposition rate of polymer waste in the process of receiving active ingredients through thermal decomposition from polymer waste, and The present invention relates to an ultrasonic pyrolysis device for polymer waste, which can improve pyrolysis efficiency by increasing ultrasonic transmission time to moving waste by forming a cooling means on the rear surface of the ultrasonic vibrator to prevent damage to the ultrasonic vibrator.

Description

Pyrolysis equipment for Ultrasonic waves}

The present invention relates to an ultrasonic pyrolysis device, and more particularly, in the process of pyrolyzing polymer waste and receiving an active ingredient, an ultrasonic vibration device is additionally installed to perform ultrasonic decomposition by breaking polymer linkages by ultrasonic waves, thereby performing pyrolysis and ultrasonic decomposition. It relates to an ultrasonic pyrolysis device that applies the complex decomposition technology of, but forms a cooling means on the rear side of the ultrasonic vibration device to prevent the ultrasonic vibration device from being damaged by heat, enabling long-term ultrasonic irradiation.

Waste is divided into domestic waste and industrial waste, and in the past, most of them were disposed of by landfill, ocean dumping, or incineration. has been developed For example, there is a method of drying waste to reduce moisture content, processing the dried waste into solid refuse fuel (SRF) and using it as a fuel for thermal power generation. This method has been widely used because it can produce renewable energy while treating waste.

However, since thermal power generation has a high amount of fine dust or greenhouse gases, it can seriously affect the environment, so the amount of power generation is gradually reduced.

Therefore, a more environmentally friendly treatment method capable of producing renewable energy while processing waste is required, and a waste treatment technology using a continuous pyrolysis method has been proposed.

Waste treatment technology using pyrolysis is an eco-friendly technology that recovers combustible gas or oil from waste by thermally decomposing waste under conditions where oxygen supply is limited.

As such, in order to recover active ingredients from waste, pyrolysis is carried out in an airtight environment where oxygen supply is cut off, and a batch pyrolysis method in which pyrolysis is performed by breaking in certain units and a continuous pyrolysis method in which continuous pyrolysis is performed this is being provided.

Recently, an example of applying ultrasonic waves to improve thermal decomposability has been presented. However, in order to apply ultrasonic waves to the pyrolysis device, the ultrasonic oscillator must be brought into contact with the pyrolysis furnace. At this time, there is a problem in that the ultrasonic oscillator is damaged by the high temperature transmitted from the pyrolysis furnace.

Korea Utility Model Registration No. 20-0421124 (registered on July 3, 2006; hereinafter referred to as 'Prior Document 1') suggested a refined oil production device using waste plastic. Prior Document 1 has a multi-stage pyrolysis furnace with a built-in transfer screw, and a burner is installed in the lowermost pyrolysis furnace close to the outer wall so that the heat of the burner heats the pyrolysis furnace so that the waste plastic inside is pyrolyzed.

Korean Patent Registration No. 10-2198416 (registered on December 29, 2020; hereinafter referred to as 'Prior Document 2') suggests a renewable energy and eco-friendly resource production device using continuous pyrolysis technology of waste. In Prior Document 2, a pyrolysis furnace for pyrolyzing waste is formed in multiple stages, and a heating unit for supplying heat to the inside is provided on the outer surface of the pyrolysis furnace, and the heating unit is composed of an electric heater, a hot water heater, a thermoelectric heater, and the like.

In the prior documents 1 and 2, heat is directly transferred to the pyrolysis furnace through hot air or electric heat to heat the waste plastic inside to achieve thermal decomposition, and there is no additional means for accelerating the thermal decomposition.

Korean Patent Publication No. 10-2002-0078551 (published on October 19, 2002; hereinafter referred to as 'Prior Document 3') discloses a thermal reaction device equipped with a decomposition device using ultrasonic waves when thermally decomposing high molecular compounds such as waste plastic and waste rubber. As a result, a method and apparatus for producing light, heavy oil and carbon by vacuuming the inside were presented. In Prior Document 3, an ultrasonic device is installed on the side while heat is supplied through a combustion device to promote thermal decomposition by ultrasonic waves and prevent sticking to a structure.

The ultrasonic vibration device should be installed as close to the pyrolysis furnace as possible to promote thermal decomposition by vibration transmission, but prior art document 3 transmits indirect vibration using a separate ultrasonic transmission device, so that the polymer compound is fixed to the structure. Although there is an effect of preventing this, the actual promotion of thermal decomposition by vibration transmission is ineffective.

Therefore, there is a need for a pyrolysis device having a new structure capable of preventing damage caused by heat while promoting thermal decomposition by directly transmitting the vibration of the ultrasonic vibrator to the pyrolysis furnace.

Korea Utility Model Registration No. 20-0421124 (2006.07.03. Registration): Refined oil production device using waste plastic Korean Patent Registration No. 10-2198416 (2020.12.29. Registration): Renewable energy and eco-friendly resource production device using continuous pyrolysis technology of waste Korean Patent Publication No. 10-2002-0078551 (published on October 19, 2002): A thermal reaction device equipped with a decomposition device using ultrasonic waves when thermally decomposing high molecular compounds such as waste plastics and waste rubber. It is hard and heavy oil by vacuuming the inside. Method and device for producing flow and carbon

Accordingly, the pyrolysis device using ultrasonic waves of the present invention,

A plurality of ultrasonic vibration devices are installed on the sidewall of the pyrolysis furnace to pyrolyze the polymer waste along the moving path to promote the decomposition of the polymer waste by ultrasonic vibration. It is an object of the present invention to provide a device capable of reducing the cost of maintaining the device by preventing damage to the ultrasonic vibration device by removing and cooling the device.

The pyrolysis device using ultrasonic waves of the present invention for achieving the above object,

In the ultrasonic pyrolysis device for pyrolysis while moving polymer waste, pyrolysis tubes, which are cylindrical tubes, are arranged in multiple stages, but a zigzag connecting pipe is formed at both ends of each stage, and an inlet is formed at the end side of the top pyrolysis tube to waste waste a pyrolysis tank for introducing the sludge, and having a discharge port formed at the end of the lowermost pyrolysis tube to discharge the sludge that has been pyrolyzed; A screw conveyor installed inside each pyrolysis tube of the pyrolysis tank to move the wastes in a zigzag pattern; an electric heating band attached to an outer surface of the pyrolysis tube of the pyrolysis tank to provide heat to heat the waste moving therein; ultrasonic vibration devices installed in a single or multiple rows in a longitudinal direction on both sides of the pyrolysis tube; a cooling device coupled to the rear surface of the ultrasonic vibrator to absorb heat transmitted to the ultrasonic vibrator and generate heat from the outside; It is configured to include; a gas discharge port installed to communicate with the upper side of the end opposite to the connection pipe of the pyrolysis tube.

The pyrolysis tube of the pyrolysis tank may be configured such that the internal pyrolysis temperature is gradually increased in the range of 100 ° C to 500 ° C from the top to the bottom.

In addition, a condensing device and a collection tank are sequentially connected to the gas outlet to condense the discharged pyrolysis gas so that the active ingredient can be separated and collected in a liquid or gas phase.

In addition, a hopper is installed at the inlet of the pyrolysis tank, and the hopper is formed in a closed structure with an upper part closed, and a crusher is connected to the side by a hopper screw conveyor to receive the shredded waste, and a condenser and a pipe are connected to the top of the hopper. A connected hopper gas outlet is formed so that the high-temperature gas introduced from the upper pyrolysis tube preheats the shredded waste and is then discharged through the hopper gas outlet so that active ingredients are collected through the condensing device.

In addition, the ultrasonic vibrator includes an ultrasonic vibrator that transmits vibration in contact with the pyrolysis tube; It may include; a Peltier element installed on the rear surface of the ultrasonic vibrator to absorb heat from the ultrasonic vibrator.

The cooling device includes a cooling jacket containing the peltor element and having a refrigerant inlet and a refrigerant outlet for charging or discharging refrigerant into the cooling jacket; a refrigerant circulation pipe installed in communication with the refrigerant inlet and the refrigerant outlet of the cooling jacket and circulating the internal refrigerant by a circulation pump installed on the flow path; It is configured to include; a cooler installed on the flow path of the refrigerant circulation pipe to cool the refrigerant.

In addition, the cooling jacket may be configured to contain Peltier elements individually, or may be configured to contain a plurality of Peltier elements in one, so that cooling may be achieved by circulation of an internal refrigerant.

The pyrolysis device using ultrasonic waves of the present invention according to the above solution means,

While moving the polymer waste in the pyrolysis furnace, heat is supplied to achieve pyrolysis, and an ultrasonic vibration device is installed outside the pyrolysis furnace so that ultrasonic decomposition, which breaks the polymer link by ultrasonic irradiation, is performed together to increase the decomposition efficiency , it is possible to increase the amount of active ingredients such as recycled oil by increasing the decomposition rate. In particular, by installing a cooling means on the back of the ultrasonic vibrator, it is possible to quickly absorb and remove the heat transmitted from the pyrolysis furnace, so that it can continuously promote decomposition by providing ultrasonic vibration for a long time while preventing damage caused by heat even in a high temperature environment. The provision of the device became possible.

1 is a schematic diagram showing a pyrolysis device using ultrasonic waves according to a preferred embodiment of the present invention.
2a to 2c are side views and schematic cross-sectional views showing installation states of an electric heating band or an ultrasonic vibration device in a pyrolysis tube according to an embodiment of the present invention.
Figures 3a and 3b is a cross-sectional view and configuration diagram showing a cooling device having a cooling jacket individually containing the ultrasonic vibration device according to an embodiment of the present invention.
Figures 4a and 4b is a cross-sectional view and configuration diagram showing a cooling device having a cooling jacket containing a plurality of ultrasonic vibration devices according to an embodiment of the present invention at the same time.
5 is a configuration diagram schematically showing a line discharged through a gas outlet of a pyrolysis tube according to the present invention;
Figure 6 is a schematic cross-sectional view showing a hopper portion according to the present invention.

Since the present invention can make various changes and have various embodiments, specific embodiments will be illustrated in the drawings and described in the detailed description. However, this is not intended to limit the present invention to specific embodiments, and should be understood to include all modifications, equivalents, or substitutes included in the spirit and technical scope of the present invention.

It should be understood that when an element is referred to as being “connected” or “connected” to another element, it may be directly connected to the other element, but other elements may exist in the middle. On the other hand, when an element is referred to as “directly connected” or “directly connected” to another element, it should be understood that no other element exists in the middle.

Terms used in this application are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this application, the terms "include" or "have" are intended to designate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, but one or more other features It should be understood that the presence or addition of numbers, steps, operations, components, parts, or combinations thereof is not precluded.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related art, and unless explicitly defined in this application, it should not be interpreted in an ideal or excessively formal meaning. don't

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

1 is a schematic diagram showing a pyrolysis device using ultrasonic waves according to a preferred embodiment of the present invention.

As referenced, in the pyrolysis device 10 using ultrasonic waves of the present invention, a plurality of pyrolysis tubes 21, 21a, 21b, 21c, 21d are installed in a pyrolysis tank 20 arranged in multiple stages and inside and outside the pyrolysis tank. The screw conveyor 30 and the heat transfer band 40, the ultrasonic vibration device 50 installed on both sides of the pyrolysis tube, the cooling device 60 for cooling the ultrasonic vibration device, and the pyrolysis to discharge the gas inside the pyrolysis tank. It is configured to include a gas outlet 70 formed at the top of one side of the tube.

The pyrolysis tubes 21, 21a, 21b, 21c, and 21d are configured in multiple numbers and arranged in multiple stages up and down, and an inlet 23 is formed on the end side of the uppermost pyrolysis tube 21a to introduce polymer waste. In addition, a connection pipe 22 is formed in the uppermost pyrolysis tube 21a and communicates with an adjacent lower pyrolysis tube through an end side opposite to the inlet 23, so that wastes that have moved through the upper pyrolysis tube are sequentially introduced into the lower pyrolysis tube. and make it move. Here, the connection pipe 22 is connected to the adjacent lower end in a zigzag form, so that the waste introduced into the inlet 23 sequentially passes through the multi-stage pyrolysis tube 21 in a zigzag manner, moves through the pyrolysis tube at the bottom, and is then discharged. make this happen Here, in the lowermost pyrolysis tube 21d, a connection tube 22 communicates with the upper part of one end and a discharge port 24 is formed at the lower part of the opposite end to discharge sludge, which remains after pyrolysis while moving.

The pyrolysis tube 21 may be formed as a single tube if a sufficient length is provided, but for miniaturization, it may be formed in multiple stages to reduce the installation area of the pyrolysis tube 21 and enable installation in a narrow space. Although the figure shows an example of 4 stages, a pyrolysis tank may be formed by using a plurality of pyrolysis tubes of 6 stages and 8 stages.

The screw conveyor 30 is installed inside the pyrolysis tube 21 of the pyrolysis tank to move the waste introduced from one side to the other. The screw conveyor 30 exposes the rotating shaft to the outside through the axial end of the pyrolysis tube, and is connected to the driving motor M to receive rotational force and rotate. Here, each screw conveyor 30 is connected to a drive motor in various ways such as receiving rotational force by installing a drive motor for each rotation shaft or connecting a gear or belt to one drive motor to receive rotational force, so that rotational force is transmitted. can

The heat transfer band 40 is a device attached to the outer surface of the pyrolysis tube 21 to receive power and generate heat to heat the pyrolysis tube. As shown in FIG. 2A, the heat transfer band 40 is installed to be biased toward both ends of the pyrolysis tube 21 to heat the introduced waste or heat it before passing through the connection tube 22 in the process of passing through the connection tube. It is possible to prevent the liquefied waste from being fused while being solidified again. The heat transfer band may be installed at portions other than both ends, such as being installed only at both ends or at a middle portion of the pyrolysis tube.

In addition, as shown in FIGS. 2B and 2C, the heat transfer band 40 is attached to the lower surface of the outer surface of the pyrolysis tube 21 or to both sides of the lower surface, but is attached long in the axial direction to pass through the entire bottom surface of the pyrolysis tube. Heat is supplied to the furnace to heat the moving waste to achieve liquefaction and thermal decomposition.

In the heat transfer band 40, each of the multiple pyrolysis tubes 21 may be formed to have different temperatures. That is, the internal temperature difference of the lower pyrolysis tube in which sludge is discharged after pyrolysis is completed in the upper pyrolysis tube into which waste is introduced from the outside can be gradually increased in the range of 100° C. to 500° C. from top to bottom.

For example, when the pyrolysis tank 20 is formed with four pyrolysis tubes 21a, 21b, 21c, and 21d, the inside of 50 to 100 ° C, 100 to 200 ° C, 200 to 300 ° C, and 300 to 500 ° C from the top to the bottom. By creating an environment, the wastes introduced at the top are sequentially passed through each pyrolysis tube and gradually exposed to a high temperature to be melted and liquefied and thermally decomposed. Of course, the temperature setting of each pyrolysis tube can be formed in various ways, but a low temperature is provided at the beginning of the inflow and a high temperature is provided toward the outlet so that pyrolysis is gradually performed in a high temperature environment.

The ultrasonic vibration device 50 is a device that receives power and generates ultrasonic vibration, and is installed such that one side is in contact with the pyrolysis tube 21 so that the generated ultrasonic vibration is transmitted to the pyrolysis tube. The ultrasonic vibration is transmitted to the waste to be thermally decomposed inside the pyrolysis tube to generate cavitation by vibration, and the cavitation changes the pressure of the molten waste to create an environment in which the polymer link is easily broken to promote decomposition.

It is preferable that the ultrasonic vibrator 50 is installed at a location separated from the heating band 40 to block heat transfer as much as possible to minimize damage caused by heat. In FIG. 2A , between the heat transfer bands 40 disposed at both end sides of the pyrolysis tube 21, a plurality of heat transfer bands 40 may be substantially coupled in the longitudinal direction to the lower side where wastes are mainly moved. In addition, in FIG. 2B, since the heat transfer band 40 is mounted on the bottom surface of the pyrolysis tube 21, the ultrasonic vibration device 50 may be installed at one side or both sides of the heat transfer band 40 at a certain distance apart. In addition, since the heating band 40 is attached to both sides of the lower part of the pyrolysis tube 21 in FIG. 2C, it is preferable to attach the ultrasonic vibration device 50 to the lower side or the upper side to transmit ultrasonic vibration.

The cooling device 60 is coupled to the rear surface of the ultrasonic vibration device to absorb and remove heat transmitted to the ultrasonic vibration device to prevent the ultrasonic vibration device from being damaged by high heat.

3A to 4B, the ultrasonic vibrator 50 includes an ultrasonic vibrator 51 installed in contact with the thermal decomposition tube 21, and a Peltier element installed on the rear surface of the ultrasonic vibrator to absorb heat of the ultrasonic vibrator. (52) is provided in a laminated structure. The ultrasonic vibrator 51 generates ultrasonic vibration when power is supplied. In addition, when the Peltier element 52 is supplied with power, the front surface in contact with the ultrasonic vibrator is cooled to absorb heat from the ultrasonic vibrator, and the opposite rear surface dissipates heat absorbed from the front surface. Here, the ultrasonic vibrator 51 may be integrally or detachably fixed to the outer surface of the pyrolysis tube 21 through a separate bracket.

As shown in FIG. 3A, the cooling device 60 according to an embodiment of the present invention forms cooling jackets 61, 61a, and 61b to contain the Peltier element 52 of the ultrasonic vibration device 50. A refrigerant inlet 611 and a refrigerant outlet 612 are formed in the cooling jacket 61, and a refrigerant circulation pipe 62 is installed in communication therewith to cool the refrigerant inside the cooling jacket by discharging it to the outside. The re-injected refrigerant circulation is made. Various materials may be used as the refrigerant, but preferably an oil component is used to circulate.

As shown in FIG. 3B, a circulation pump 621 is installed on the flow path in the refrigerant circulation pipe 62 to circulate the refrigerant, and a cooler 63 is installed on the flow path so that the outer cooling jacket 61 is installed. The refrigerant discharged to the cooler exchanges heat with the outside through the cooler to achieve cooling. Here, various methods such as air cooling or water cooling may be applied to heat exchange with the outside.

In addition, as shown in FIG. 3A, the cooling device 60 individually installs a cooling jacket 61a for each ultrasonic vibration device 50, and a plurality of cooling jackets 61a and the cooler 63 are refrigerant circulation pipes ( 62), it is possible to achieve refrigerant circulation by being connected in series. Of course, the plurality of cooling jackets 61a are connected to coolers in parallel so that each cooling jacket 61a can be cooled by individual refrigerant circulation.

4A and 4B show a cooling device for cooling a plurality of ultrasonic vibrators 51 with one cooling jacket 61b. As referenced, a plurality of ultrasonic vibrators 50 may be incorporated into one cooling jacket 61b to allow cooling through a refrigerant. In particular, the Peltier elements 52 of the ultrasonic vibrator are inserted inside the cooling jacket 61b to cool the ultrasonic vibrator through heat exchange with the circulating refrigerant.

In addition, the present invention provides one cooling jacket 61b for each pyrolysis tube 21 to cool the ultrasonic vibrator installed in the pyrolysis tube 21, and the cooling jacket 61b installed in each pyrolysis tube 21 is in series with each other or It is connected with a cooler in parallel to allow cooling of the refrigerant.

As shown in FIG. 1, a gas outlet 70 is formed in the pyrolysis tube 21 of the present invention to discharge the gas generated by pyrolysis to the outside.

The gas outlet 70 is formed on the upper part of the pyrolysis tube 21 of each stage, and the top pyrolysis tube 21a is formed on the end side opposite to the inlet 23 through which the waste is introduced. For example, a gas outlet 70 is formed on the upper side of the end of the pyrolysis tube 21 where the connection pipe 22 communicates or the outlet 24 is formed at the lower part, so that the pyrolyzed gas is discharged.

Gas components discharged through the gas outlet 70 of the pyrolysis tube include active ingredients including oil vapor and combustible gas, as well as water vapor generated during drying of waste, and the gas rate generated and discharged according to each stage is different. That is, since the pyrolysis tube 21a at the top where the inlet 23 is formed has a larger purpose of drying and melting than pyrolysis, the generated gas has a large specific gravity of water vapor, and the pyrolysis tubes 21b, 21c, and 21d at the bottom have an internal temperature Depending on conditions, thermal decomposition gas of active ingredients is generated and discharged by thermal decomposition.

As shown in FIG. 5 , since the gas components discharged from the gas outlet 70 are of high temperature, they are cooled by passing through the condensing device 71 and then collected in the collecting tank 72 . At this time, as described above, since each pyrolysis tube 21 provides a different temperature environment, the pyrolysis gas of different components is discharged, so that the gas outlet of the pyrolysis tube at each stage is collected through a separate condenser, so that the active ingredients are collected. It can be separated and collected in liquid or gaseous form.

For example, since a large amount of water vapor is included in the uppermost pyrolysis tube 21a, it is preferable that at least only the gas discharged from the uppermost pyrolysis tube is collected through a separate collection tank 72.

In addition, the pyrolysis gas discharged from the gas outlets 70 of the remaining pyrolysis tubes 21b, 21c, and 21d may be collected into one unit and separated into components through a distillation column.

As shown in FIG. 6 , in the thermal cracking tank 20 of the present invention, a hopper 80 may be further mounted to the inlet 23.

Here, the hopper 80 is provided in a closed structure with an upper end closed, and a crusher 82 is connected to the side by a hopper screw conveyor 83. That is, the polymer waste is pulverized through the crusher 82, and the pulverized waste is guided to the hopper screw conveyor 83 and introduced into the hopper.

In addition, a hopper gas outlet 81 is formed on the upper part of the hopper 80. Since the hopper 80 is installed in communication with the inlet 23 of the uppermost pyrolysis tube 21a, hot gas containing heat and water vapor generated in the pyrolysis tube flows in, and the introduced hot gas flows into the hopper gas outlet at the top of the hopper ( 81), the high-temperature gas passes through the inside of the hopper to preheat the pulverized waste, thereby shortening the heating time of the waste introduced into the pyrolysis tube.

Since the high-temperature gas discharged through the hopper gas discharge port 81 contains a large amount of water vapor, it passes through a condensing device to remove moisture, and then is collected in a collection tank or classified through a distillation tower.

The ultrasonic pyrolysis device 10 for polymer waste according to the present invention configured as described above,

The waste crushed in the crusher 82 is supplied to the hopper 80, and the waste loaded in the hopper is introduced into the interior through the inlet 23 of the pyrolysis tube and moved from one side to the other by the operation of the screw conveyor 30, , It moves through the multi-stage pyrolysis tube 21 sequentially, but thermal decomposition is performed by receiving heat from the heat transfer band 40 during the movement process, and the polymer ring is broken by ultrasonic waves transmitted by the ultrasonic vibration device 50. The decomposition rate of polymer waste is accelerated by the complex factors of thermal decomposition and ultrasonic decomposition, such as through ultrasonic decomposition.

The pyrolysis gas is separated and collected by component through a condensing device or a distillation tower through the gas outlet 70.

In the ultrasonic vibrator 50, the Peltier element 52 on the rear side absorbs and cools the heat transferred to the ultrasonic vibrator 51, so that it can be operated for a long time without being damaged by heat. The Peltier element 52 that absorbs heat from the ultrasonic vibrator transfers heat by exchanging heat with the refrigerant charged in the cooling jacket 61, and the refrigerant is transferred to the external cooler 63 through the refrigerant circulation pipe 62 to cool the cooler. It is cooled by heat exchange through various methods such as air cooling or water cooling, and the cooled refrigerant is transferred to the cooling jacket again to circulate to cool the ultrasonic vibration device.

10: ultrasonic pyrolysis device
20: pyrolysis tank
21, 21a, 21b, 21c, 21d: thermal decomposition tube
22: connector 23: inlet
24: outlet
30: screw conveyor
40: electric band
50: ultrasonic vibration device
51: ultrasonic vibrator 52: Peltier element
60: cooling device
61,61a,61b: cooling jacket 62: refrigerant circulation pipe
63: cooler
611: refrigerant inlet 612: refrigerant outlet
621: circulation pump
70: gas outlet
71: condensation device 72: collection tank
80: Hopper
81: hopper gas outlet 82: crusher
83: hopper screw conveyor

Claims (8)

In the ultrasonic pyrolysis device for pyrolysis while moving polymer waste,
A thermal decomposition tank 20 including a thermal decomposition tube 21 for thermally decomposing polymer waste while moving therein;
a single or multiple ultrasonic vibration device 50 installed on both sides of the pyrolysis tube and installed in plurality in the longitudinal direction;
The ultrasonic pyrolysis device characterized in that it is configured to include; a cooling device 60 coupled to the rear surface of the ultrasonic vibration device to absorb heat transferred to the ultrasonic vibration device and generate heat from the outside. According to claim 1,
In the pyrolysis tank 20, the pyrolysis tubes 21, 21a, 21b, 21c, and 21d, which are cylindrical tubes, are arranged in multiple stages, and a connecting pipe 22 communicating in a zigzag manner is formed at both ends of each stage, and the pyrolysis tube 22 is formed at the top end. An inlet 23 is formed on the end side of the tube 21a to introduce waste, and an outlet 24 is formed on the end side of the lowermost pyrolysis tube 21d to discharge sludge after thermal decomposition;
Inside each pyrolysis tube 21 of the pyrolysis tank, a screw conveyor 30 is installed to move the wastes inside in a zigzag pattern;
An electric heating band 40 is attached to the outer surface of the pyrolysis tube 21 of the pyrolysis tank to provide heat to heat the waste moving inside,
An ultrasonic pyrolysis device for polymer waste, characterized in that a gas outlet 70 is installed in communication with the end opposite to the part where the connection pipe 22 communicates in the pyrolysis tube 21 to discharge the pyrolysis gas. According to claim 2,
The pyrolysis tube 21 of the pyrolysis tank is configured to gradually increase the internal pyrolysis temperature in the range of 100 ° C to 500 ° C from the top to the bottom of the ultrasonic pyrolysis device of polymer waste. According to claim 2,
The ultrasonic pyrolysis device of polymer waste, characterized in that the condensing device 71 and the collection tank 72 are sequentially connected to the gas outlet 70 to condense the discharged pyrolysis gas and separate and receive the active ingredient in a liquid or gas phase. . According to claim 4,
A hopper 80 is mounted at the inlet 23 of the pyrolysis tank 20,
The hopper 80 is formed in a closed structure with a closed top, and a crusher 82 is connected to the side by a hopper screw conveyor 83 to receive the shredded waste, and a condensing device 71 and a pipe at the top of the hopper A connected hopper gas outlet 81 is formed, so that the high-temperature gas introduced from the upper pyrolysis tube preheats the shredded waste and is discharged to the hopper gas outlet so that the active ingredient is received through the condensation device. ultrasonic pyrolysis device. According to claim 2,
The ultrasonic vibration device 50,
an ultrasonic vibrator 51 that transmits vibrations in contact with the pyrolysis tube 21;
An ultrasonic pyrolysis device for polymer waste, characterized in that it comprises a; Peltier element 52 installed on the rear surface of the ultrasonic vibrator to absorb heat from the ultrasonic vibrator. According to claim 6,
The cooling device 60 is
A cooling jacket 61 containing the peltor element 52 and having a refrigerant inlet 611 and a refrigerant outlet 612 formed on one side to charge or discharge refrigerant therein;
a refrigerant circulation pipe 62 installed in communication with the refrigerant inlet and the refrigerant outlet of the cooling jacket and circulating the internal refrigerant by a circulation pump 621 installed on the flow path;
The ultrasonic pyrolysis device of polymer waste, characterized in that it is configured to include; a cooler (63) installed on the flow path of the refrigerant circulation pipe to cool the refrigerant. According to claim 7,
The cooling jacket 61 is configured to contain Peltier elements individually or to contain a plurality of Peltier elements in one so that cooling is achieved by circulation of an internal refrigerant. .

Images