KR102477514B1 - Gasification Combustion Device for Waste Using Microwave - Google Patents

Abstract

The present invention is a means of first pyrolysis gasifying combustible waste using a dielectric heating element generated by microwaves and then converting it into a second high-temperature gas to completely burn it. It is about.
That is, the present invention relates to a stationary frame body, a thermal decomposition body installed in the stationary frame body and having a thermal decomposition chamber therein, a dielectric heating element installed on the wall surface of the thermal decomposition chamber, and a dielectric heating element installed on the outer wall of the thermal decomposition body. A microwave generator for heating a dielectric heating element by irradiating microwaves, a material inlet installed in the pyrolysis body to supply combustible waste to the thermal decomposition chamber, and a combustion residue installed in the pyrolysis body and burned in the pyrolysis chamber A discharge unit for discharging the gas to the outside, an exhaust pipe installed vertically on the pyrolysis body to discharge gas in the pyrolysis chamber, and an air supply unit provided at one side of an air mixing chamber provided at an end of the exhaust pipe to supply air, and , Gas combustion at a high temperature by a spray nozzle provided on the other side of the air mixing chamber and spraying a mixed gas of gas and air, and a flame generated by combining the mixed gas and external air from the spray nozzle It is characterized by a gasification combustion device for combustible waste using microwaves having a configuration including a high-temperature gas combustion chamber.

Description

Gasification Combustion Device for Waste Using Microwave}

The present invention relates to a gasification and combustion device for combustible waste using microwaves, and more specifically, a means for completely burning combustible waste by first pyrolyzing and gasifying combustible waste using a dielectric heating element generated by microwaves and then converting combustible waste into high-temperature gas secondarily. It relates to a gasification combustion device for combustible waste using microwaves that can be treated in an environmentally friendly manner.

In general, combustible waste includes domestic waste or various wastes discharged from various industries or households, and a method of treating such combustible waste is to burn and remove combustible waste using flame in an incinerator equipped with an incinerator. It is being used.

However, the method of treating combustible waste by incineration is an incineration method in which flame is directly applied to combustible waste, and complete combustion is practically impossible due to various factors such as load, density, moisture content, incinerator size, and heating temperature of combustible waste. There is a problem in that a large amount of soot, dust, air pollution and pollutant exhaust gases are generated due to combustion.

In particular, the method of treating combustible waste by incineration requires oxygen when combustible waste is burned, and in particular, when combustible waste made of organic compounds is incinerated, there is a problem in that dioxin, a harmful substance, is discharged.

Dioxin thus discharged is classified as an endocrine disruptor because it mainly acts on the estrogen-related endocrine system in the body and exhibits toxicity.

In view of this, a method of thermally decomposing or carbonizing combustible waste in a high temperature and vacuum environment has been disclosed. However, in the case of treating combustible waste using such thermal decomposition, a process of creating/maintaining a vacuum inside the thermal decomposition furnace is required during the thermal decomposition process. And, due to this, there is a problem in that the overall device becomes excessively complicated by providing a temperature management device for the thermal decomposition heated to the high temperature.

In addition, since these carbonization devices use gas, fossil fuel, etc. as a heat source, relatively high maintenance costs are required and the structure is relatively complex.

KR No. 0019679 KR No. 0777616 KR No. 0375569 KR No. 787948 KR No. 0372775

The present invention is to solve this problem, by microwave

The combustible wastes stored in the pyrolysis chamber are pyrolyzed and gasified at a high temperature using a dielectric heating element that generates heat, and then the fuel gasified by the first pyrolysis is fused with oxygen in the high-temperature gasification chamber, and the second high-temperature gasification is achieved so that complete combustion is achieved. The residue is carbonized to provide a gasification and combustion device for combustible waste using microwaves that enables environmentally friendly processing of combustible waste as a means to remove soot and environmental pollutants.

The present invention relates to a stationary frame body, a thermal decomposition body installed on the stationary frame body and having a thermal decomposition chamber therein, a dielectric heating element installed on the wall of the thermal decomposition chamber, and a microwave oven installed on the outer wall of the thermal decomposition body. A microwave generator for heating the dielectric heating element by irradiation, a material input unit installed in the pyrolysis body to supply combustible waste to the pyrolysis chamber, and a pyrolysis body installed in the pyrolysis body to transfer combustion residues from pyrolysis and combustion in the pyrolysis chamber to the outside an exhaust unit installed vertically in the pyrolysis main body to discharge gas in the pyrolysis chamber, an air supply unit provided at one side of an air mixing chamber provided at an end of the exhaust tube and configured to supply air; A spray nozzle provided on the other side of the air mixing chamber and spraying a mixed gas of gas and air, and a high-temperature gas in which gas is combusted at a high temperature by a flame generated by combining the mixed gas and external air from the spray nozzle. It is characterized by a gasification combustion device of combustible waste using microwaves consisting of a configuration including a combustion chamber.

The thermal decomposition chamber provided inside the pyrolysis body is characterized in that the left and right widths are narrow and the front and rear widths are wide in the long direction, and the left and right and front and rear widths are provided at a ratio of 1:2 or more.

The dielectric heating element is characterized in that it is disposed at regular intervals in a form embedded in the wall surface of the thermal decomposition chamber and heated by irradiation of microwaves generated by a microwave generator.

At the end of the exhaust pipe, horizontal conduits are disposed orthogonally, and an air mixing chamber provided at the orthogonally crossed portion is provided, and a mixed gas in which gas discharged to the thermal decomposition chamber and air supplied at high pressure from the air supply unit are mixed is sprayed. It is characterized in that the injection is performed in the direction of the nozzle.

The gasification and combustion device of combustible waste using microwaves of the present invention heats a dielectric heating element to a high temperature by irradiation of microwaves to first pyrolyze and gasify combustible waste accommodated in a thermal decomposition chamber, and then the gas is mixed with high-pressure air in an air mixing chamber. The mixed mixed gas is sprayed through the injection nozzle, and a strong negative pressure is generated in the external air. The flame generated when the mixed gas and external air are combined in the high-temperature gas combustion chamber completely burns the pollutant by the secondary high-temperature gasification action. Since it is discharged in a removed state, there is an effect of disposing of combustible waste in an environmentally friendly manner.

1 is a front view showing the overall configuration of a gasification and combustion apparatus for combustible waste using microwaves according to the present invention.
Figure 2 is a side view showing the overall configuration of the combustible waste gasification combustion apparatus using microwaves according to the present invention.
Figure 3 is a longitudinal cross-sectional view showing a pyrolysis body applied to the gasification and combustion apparatus for combustible waste using microwaves according to the present invention.
Figure 4 is a planar cross-sectional view showing a pyrolysis body applied to the gasification and combustion apparatus of combustible waste using microwaves according to the present invention.
5 is a cross-sectional view of a part of a high-temperature gas combustion chamber applied to the gasification and combustion apparatus of combustible waste using microwaves according to the present invention.
6 is a partially enlarged cross-sectional view of a portion of a high-temperature gas combustion chamber applied to the gasification and combustion apparatus of combustible waste using microwaves according to the present invention.

Hereinafter, a preferred embodiment of the present invention will be described in detail. And, in describing the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted.

The gasification and combustion device for combustible waste using microwaves of the present invention includes a fixed frame body 10, a pyrolysis body 100 installed in the fixed frame body 10 and having a thermal decomposition chamber 110 therein, A dielectric heating element 120 installed on the wall of the thermal decomposition chamber 110 and a microwave installed on the outer wall of the thermal decomposition body 100 and irradiating microwaves to the dielectric heating element 120 to heat the dielectric heating element 120 A generator 140, a material inlet 150 installed in the pyrolysis main body 100 and supplying combustible waste to the pyrolysis chamber 110, and a pyrolysis in the pyrolysis chamber 110 installed in the pyrolysis main body 100 A discharge unit 160 for discharging burned residues to the outside, an exhaust pipe 170 installed vertically in the pyrolysis body 100 to discharge gas in the pyrolysis chamber 110, and the exhaust pipe 170 An air supply unit 190 provided with an air mixing chamber 180 provided at an orthogonally crossed portion where horizontal conduits are orthogonally arranged at the end of the horizontal conduit and provided on one side of the horizontal conduit of the air mixing chamber 180 to supply air, and , The spray nozzle 200 provided on the other side of the horizontal pipe of the air mixing chamber 180 and spraying a mixed gas of gas and air, and the mixed gas and external air are combined from the spray nozzle 200 It consists of a configuration including a high-temperature gas combustion chamber 240 in which gas is burned at a high temperature by the generated flame.

The pyrolysis body 100 according to the present invention is installed in the stationary frame body 10, and the pyrolysis chamber 110 provided inside the pyrolysis body 100 has a narrow width on the left and right sides and a wide width on the front and rear sides in a long direction. The width of the left and right sides and the front and rear sides of the support are provided at a ratio of at least 1:2, which means that the combustible waste accommodated in the thermal decomposition chamber 110 is used as a heat source by the dielectric heating element 120 installed on the wall of the thermal decomposition chamber 110, respectively. When gas is generated by thermal decomposition, the heat source temperature of the dielectric heating elements 120 located in the narrow widths on the left and right sides is evenly transmitted to the center of the combustible waste to increase the thermal decomposition efficiency.

That is, when the thermal decomposition chamber 110 of the same capacity is configured, the dielectric heating element 120 installed on the wall of the square thermal decomposition chamber 110 is longer than the interval at which the heat source is transmitted to the combustible waste. Since the heat source transfer interval by the left and right dielectric heaters 120 having a narrow width of the thermal decomposition chamber 110 is narrow, the heat source transfer efficiency to the center of combustible waste is increased.

An insulator 130 is provided between the outer wall and the inner wall of the pyrolysis body 100, and the insulator 130 is made of a heat-resistant material that is not damaged by heat generated from the dielectric heating element 120 and the pyrolysis chamber 110. It is designed to prevent heat loss in the thermal decomposition chamber 110.

The dielectric heating elements 120 are disposed at regular intervals in a form embedded in the wall surface of the thermal decomposition chamber 110, heated by microwaves oscillated from the microwave generator 140, and accommodated in the thermal decomposition chamber 110 Combustible waste pyrolysis to gasify. At this time, the dielectric heating element 120 causes high heat to be generated in the thermal decomposition chamber 110 so that combustible waste is thermally decomposed and gasified at high temperature.

In addition, the dielectric heating element 120 can be heated to a high temperature by irradiation of microwaves generated by the microwave generator 140 and is provided using various materials that can withstand high heating temperatures.

The microwave generator 140 is installed on the outer wall of the pyrolysis body 100 to heat the heating element by the microwave generated by the microwave generator 140, and combustible waste accommodated in the pyrolysis chamber 110 at the heated temperature pyrolysis to gasify

In addition, a material input unit 150 for introducing combustible waste into the pyrolysis chamber 110 is installed on one side of the upper part of the pyrolysis body 100, and on one side of the lower part of the pyrolysis body 100, pyrolysis and combustion in the pyrolysis chamber 110 A discharge unit 160 for discharging combustion residues to the outside is installed so that combustion residues in the thermal decomposition chamber 110 can be separated and treated.

In addition, gas that is received in the pyrolysis chamber 110 and combustible waste is pyrolyzed and combusted by high heat and gasified is discharged through an exhaust pipe 170 installed vertically at the top, and a horizontal pipe is orthogonal to the end of the exhaust pipe 170 The air mixture chamber 180 provided at the orthogonally crossed portion is provided, and the mixed gas in which the gas discharged to the thermal decomposition chamber 110 and the air supplied at high pressure from the air supply unit 190 are mixed is mixed with air. It proceeds in the direction of the injection nozzle 200 located on the other side of the seal 180 so that the high-pressure mixed gas can be injected.

The connection pipe 220 is coupled to the outside of the mixed gas injection part of the injection nozzle 200, the air inlet chamber 210 is provided inside the connection pipe 220, and one side of the connection pipe 220 is inward An inclined ventilation passage 230 is formed so that outside air flows into the air inlet chamber 210 through the ventilation passage 230, and at this time, in the process of spraying the mixed gas at high pressure through the injection nozzle 200, the inward direction While a strong negative pressure is generated in the air introduced into the air inlet chamber 210 through the inclined ventilation passage 230, a strong suction force is generated in the spraying direction of the spray nozzle 200, so that the mixed gas in the hot gas combustion chamber 240 Gas combustion is performed at a high temperature by the flame generated when the external air is combined with the gas.

That is, in the high-temperature gas combustion chamber 240, the mixed gas is completely burned while generating high heat of 1500 to 1700 ° C., and is discharged to the outside in a state in which pollutants are removed, so that environmentally friendly treatment is performed.

In this way, the present invention describes an embodiment of a gasification and combustion apparatus for combustible waste using microwaves as follows.

First, combustible waste is injected into the pyrolysis chamber 110 through the material input unit 150, and then the microwave is operated while the material input unit 150 is blocked to generate microwaves generated by the microwave generator 140. The dielectric heating element 120 is heated to a high temperature by the irradiation of the heat generated in the thermal decomposition chamber 110 to pyrolyze and gasify combustible wastes accommodated in the thermal decomposition chamber 110 .

In addition, the pyrolysis of combustible waste in the pyrolysis chamber 110 and the gasified gas are discharged through the exhaust pipe 170 installed vertically at the top, and in the air mixing chamber 180 provided at the end of the exhaust pipe 170, the air supply unit ( The mixed gas of air and gas supplied at high pressure in 190 is discharged in the direction of the spray nozzle 200 .

Subsequently, the high-pressure mixed gas is injected through the injection nozzle 200, and a strong negative pressure of the external air is generated in the air inlet chamber 210 provided outside the mixed gas injection portion of the injection nozzle 200, and the injection nozzle 200 ) generates a strong suction force in the direction of the jetting, and complete combustion is achieved by means of gas combustion at a high temperature by the flame generated when the mixed gas and external air are combined in the hot gas combustion chamber 240.

Therefore, the present invention completely burns the combustible waste in the pyrolysis chamber 110 by primary low-oxygen pyrolysis gasification and then secondary high-temperature gasification in the high-temperature gas combustion chamber 240, so that the pollutants are completely removed and discharged. to dispose of combustible waste.

In the above, the present invention has been described with reference to the above embodiments, but various modifications are possible within the scope of the technical idea of the present invention.

10: fixed frame body 100: pyrolysis body
110: thermal decomposition chamber 120: dielectric heating element
130: insulation 140: microwave generator
150: material input unit 160: discharge unit
170: exhaust pipe 180: air mixing chamber
190: air supply unit 200: injection nozzle
210: air inlet chamber 220: connector
230: ventilation passage 240: hot gas combustion chamber

Claims (4)

A stationary frame body 10, a thermal decomposition body 100 installed in the stationary frame body 10 and having a thermal decomposition chamber 110 therein, and a dielectric heater 120 installed on a wall surface of the thermal decomposition chamber 110 And, a microwave generator 140 installed on the outer wall of the pyrolysis body 100 and irradiating microwaves to the dielectric heater 120 to heat the dielectric heater 120, and installed on the pyrolysis body 100 A material input unit 150 for supplying combustible waste to the thermal decomposition chamber 110, and a discharge unit 160 installed in the thermal decomposition body 100 and discharging combustion residues from pyrolysis and combustion in the thermal decomposition chamber 110 to the outside. And, an exhaust pipe 170 installed vertically in the pyrolysis main body 100 to discharge gas in the pyrolysis chamber 110, and an air mixing chamber 180 provided at an end of the exhaust pipe 170 provided on one side air supply unit 190 through which air is supplied, a spray nozzle 200 provided on the other side of the air mixing chamber 180 and spraying a mixed gas of gas and air, and the spray nozzle 200. It includes a high-temperature gas combustion chamber 240 in which gas is burned at a high temperature by a flame generated by combining the mixed gas and external air from
The pyrolysis chamber 110 provided inside the pyrolysis main body 100 has a narrow left and right width and a wide front and rear width in a long direction, but the left and right and front and rear widths are provided at a ratio of 1: 2 or more,
The dielectric heating element 120 is disposed in a form embedded in the wall surface of the thermal decomposition chamber 110,
At the end of the exhaust pipe 170, horizontal conduits are arranged orthogonally, and an air mixing chamber 180 provided at the orthogonally crossed portion is provided, so that the gas discharged to the thermal decomposition chamber 110 and the air supply unit 190 are provided. The mixed gas, in which air is supplied at high pressure, proceeds in the direction of the injection nozzle 200, and injection is performed.
The connection pipe 220 is coupled to the outside of the mixed gas injection part of the injection nozzle 200, the air inlet chamber 210 is provided inside the connection pipe 220, and one side of the connection pipe 220 is inward An inclined ventilation passage 230 is formed so that outside air is introduced into the air inlet chamber 210 through the ventilation passage 230, and the mixed gas and external air are combined in the hot gas combustion chamber 240. Gasification and combustion apparatus for combustible waste using microwaves, characterized in that combustion is made by flame.









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