Batch-type composite temperature treatment apparatus using high-temperature plasma and exhaust gas treatment method thereof

Abstract

Regarding a batch-type composite temperature treatment apparatus using a high-temperature plasma and an exhaust gas treatment method thereof, specifically, in a batch-type treatment apparatus for organic substances, it relates to a batch-type composite temperature treatment apparatus using a high-temperature plasma and an exhaust gas treatment method thereof that are convenient and economical for maintenance. To achieve the above object, the present invention includes a reaction part provided to accommodate an organic substance to be carbonized therein, a rotating part provided to stir the inside of the reaction part, and a torch part provided to generate plasma to carbonize the organic substance inside the reaction part. The torch part is coupled to the reaction part and is provided to be coupled to the opposite side of the position where the organic substance accumulates and is stirred inside the reaction part.

Description

Technical Field

[0001] The present invention relates to a batch-type composite temperature treatment apparatus using high-temperature plasma and an exhaust gas treatment method thereof, and more particularly, to a batch-type treatment apparatus for organic substances, and relates to a batch-type composite temperature treatment apparatus using high-temperature plasma and an exhaust gas treatment method thereof, which are convenient and economical for maintenance.

Background Art

[0002] As cities develop and housing becomes concentrated, organic substances composed of household waste discharged from each household have come to be concentrated and generated. However, due to the NIMBY phenomenon, many large-scale organic substance treatment plants are installed outside the residential areas. Therefore, organic substances are collected in densely populated areas and then transported to the organic substance treatment plants outside the residential areas for treatment. However, new problems such as bad odors and the generation of harmful insects during the storage, transportation, and final treatment of such organic substances have arisen. Therefore, there is a growing recognition that household waste must be treated by the generators at the place of generation.

[0003] Therefore, from such a recognition, the development of technologies for treating organic substances at the place of generation has been actively carried out.

[0004] The treatment technology for organic substances developed for use in households is a technology that grinds organic substances with a grinder and flows them into a drain pipe together with water. Using this method simplifies the treatment of organic substances in households, but the pollution load of the sewage flowing into the sewage treatment plant becomes extremely large, causing many problems in the operation of the sewage treatment plant. In addition, an organic substance elimination device using a technology for aerobically decomposing organic substances using microorganisms has the advantage that the treatment method is environmentally friendly, but it takes a long time to completely decompose the organic substances contained in the organic substances with microorganisms, and there is an economic burden that the microbial inoculum used must be continuously supplied. Some anaerobic microorganisms generate malodorous substances such as hydrogen sulfide and mercaptan when decomposing organic substances, and installing an organic substance elimination device in each household will expand many point pollution sources.

[0005] On the one hand, in order to solve the above problems, there is also a technique of discarding the separation liquid generated by squeezing and dehydrating organic substances into the sewer outlet and drying or carbonizing the solid substances with an electric heater or a fossil fuel burner. However, this technique is cumbersome to use because the plastic bag containing the organic substances must be broken and only the organic substances can be treated. Since drying and carbonization are carried out at a temperature of 600°C or lower by an electric heater, the treatment time becomes long, and there is a problem that a large amount of malodorous substances are generated because the malodorous substances generated during carbonization cannot be pyrolyzed at high temperature.

[0006] Therefore, recently, a method of carbonizing organic substances using high-temperature plasma has been used, and it is also used to treat refractory organic substances. By treating organic substances and gasifying and decomposing them, the gas may be reused.

[0007] The treatment for carbonizing organic substances is generally carried out in a reactor without oxygen. The temperatures used here are generally 200 - 400°C for low-temperature carbonization, 400 - 600°C for medium-temperature carbonization, and 600°C or higher for high-temperature carbonization, and the methods of supplying heat sources vary depending on the required temperature ranges. For low-temperature carbonization, an indirect heating method using heat medium oil or the like is mainly used, and for medium-temperature carbonization, a hot air method is mainly used. Also, for high-temperature carbonization, since oxygen is required when directly supplying a flame, an indirect heating method may be used, but when configuring the apparatus, steam or the like may be used as a heat source in consideration of efficiency, or the heat source generated when the carbon component of the carbonization target oxidizes may be used.

[0008] The method of carbonizing or gasifying the target organic substances using high-temperature plasma as a heat source uses a method of supplying N2 to induce dilution of oxygen instead of creating a vacuum state in order to induce thermal decomposition in an oxygen-free atmosphere.

[0009] Also, when generating a flame using plasma and supplying heat to the reactor as a heat source, a method of heating the atmosphere temperature of the entire reactor to a desired temperature is a common method.

[0010] However, since energy is consumed for preheating, post-heating, cooling, etc. due to such an ambient temperature, generally, the method using plasma has a problem of high processing cost.

[0011] Also, conventionally, since the plasma torch is provided at the lower part of the reactor, moisture of the organic matter may flow into the torch and interrupt the operation of the plasma torch. To maintain the plasma torch, all the organic matter inside the reactor has to be removed, etc., which has been a problem.

Prior Art Documents

Patent Documents

[0012]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0013] In order to solve the above problems, an object of the present invention is to provide a batch-type composite temperature processor using high-temperature plasma and an exhaust gas treatment method thereof, which are convenient and economical for maintenance, in a batch-type processor for organic matter.

[0014] The technical problems to be solved by the present invention are not limited to the above technical problems, and other technical problems not mentioned will be clearly understood by those having ordinary knowledge in the technical field to which the present invention pertains from the following description.

Means for Solving the Problems

[0015] To achieve the above object, the present invention provides a batch-type composite temperature treatment machine using high-temperature plasma, which includes a reaction part provided to accommodate an organic substance to be carbonized therein, a rotating part provided to stir the inside of the reaction part, and a torch part provided to generate plasma to carbonize the organic substance inside the reaction part. The torch part is coupled to the reaction part and is provided to be coupled to the opposite side of the position where the organic substance accumulates and is stirred inside the reaction part.

[0016] In an embodiment of the present invention, the reaction part includes a reaction furnace formed in a circular or U shape and provided to accumulate an organic substance from below, and a reaction inlet / outlet disposed on one side of the upper part of the reaction furnace, provided to allow the organic substance to be introduced into the reaction furnace, and provided to exhaust gas.

[0017] In an embodiment of the present invention, the rotating part includes a rotating shaft formed at the center of the reaction part and a plurality of rotors coupled to the rotating shaft. The rotating shaft is provided to rotate in the same direction as the direction in which the organic substance is introduced from the reaction inlet / outlet.

[0018] In an embodiment of the present invention, the torch part is provided to be coupled to the upper part of the reaction furnace and is coupled to have a position and an angle for discharging plasma in a direction corresponding to the direction of the organic substance introduced from the reaction inlet / outlet.

[0019] In an embodiment of the present invention, the reaction inlet / outlet and the torch part are provided to be located in the upper left or right region of the reaction furnace.

[0020] In an embodiment of the present invention, the torch part is coupled perpendicular to the tangential direction of the inner wall of the reaction furnace and is provided to have a discharge direction at an angle of 0 degrees or more from the tangential direction of the outer wall of the reaction furnace toward the inside.

[0021] In an embodiment of the present invention, there is provided a first heat exchange unit configured to condense moisture in the exhaust gas by heat-exchanging the exhaust gas discharged from the reaction unit with outside air, a scrubber unit connected to the first heat exchange unit and configured to collect fine particles of the exhaust gas that has undergone heat exchange, a mixing unit connected to the scrubber unit and configured to mix oxygen into the exhaust gas from which the fine particles have been collected, a heater unit configured to control the temperature of the exhaust gas into which oxygen has been mixed, a purification unit configured to cause a catalytic reaction with respect to contaminants in the exhaust gas whose temperature has been controlled by the heater unit, a second heat exchange unit connected to the purification unit and configured to condense moisture in the exhaust gas by heat-exchanging the exhaust gas with outside air, and an exhaust unit provided downstream of the second heat exchange unit and configured to discharge the exhaust gas.

[0022] In an embodiment of the present invention, the purification unit is configured to bind CO in the exhaust gas to additionally supplied O2 by an oxidation catalyst to form CO2, and X convert NO to N2 and H2O forms by a reducing agent and a reduction catalyst.

[0023] To achieve the above object, the present invention provides a method for treating exhaust gas of a batch-type composite temperature treatment machine using high-temperature plasma, the method including: a) discharging exhaust gas from the reaction unit; b) the first heat exchange unit heat-exchanging the discharged exhaust gas with outside air to condense moisture; c) the scrubber unit collecting fine particles of the exhaust gas in which the moisture has been condensed; d) the mixing unit mixing outside air into the exhaust gas from which the fine particles have been collected; e) the heater unit controlling the temperature of the exhaust gas mixed with outside air; f) the purification unit causing a catalytic reaction with respect to contaminants in the exhaust gas whose temperature has been controlled; g) the second heat exchange unit heat-exchanging the exhaust gas in which the catalytic reaction has occurred with outside air to condense moisture; and h) the exhaust unit discharging the exhaust gas in which the moisture has been condensed.

[0024] In an embodiment of the present invention, in the step f), if the temperature at the subsequent stage of the oxidation catalyst for CO treatment is equal to or higher than a predetermined temperature, the purification unit is configured to determine that the carbonization is complete with a moisture content of less than 1% in the reactor and stop the operation of the torch unit.

Effects of the Invention

[0025] With the above configuration, the present invention can derive the degree of carbonization of organic substances from the temperature at the subsequent stage of the oxidation catalyst for carbon monoxide treatment without using a separate gas measurement system, and can determine the end point of the plasma torch unit, which has the effect of being economical.

[0026] In addition, since the plasma torch unit is provided at the upper part of the reactor, there is no problem of moisture flowing into the torch unit, and it is not necessary to remove the contents of the reactor during maintenance of the torch unit, which is convenient.

[0027] Furthermore, since the torch unit is located on the upper right side and emits plasma, various temperature regions are formed in the reactor, and carbonization can be performed at a composite temperature of high, medium, and low temperatures.

[0028] Furthermore, since the material of the reactor is a stainless steel material and the temperature in the reactor is less than 150 degrees, no harmful substances are generated by the plasma.

[0029] Furthermore, according to the present invention, since plasma with various temperatures from partial high temperature (1500 degrees or higher) to low temperature is used, the internal temperature of the reactor can be maintained at almost the lowest temperature (100 degrees required for evaporation). Furthermore, thereby, the minimum gasification required for carbonization is induced, so that the overall treatment temperature and pressure can be lowered, the safety of the equipment is improved, and the gasification required during carbonization can be minimized, which is economical.

[0030] The effects of the present invention are not limited to the above effects, and include all effects inferred from the detailed description of the present invention or the configuration of the invention described in the claims.

Brief Description of the Drawings

[0031]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Best Mode for Carrying Out the Invention

[0032] The most preferred embodiment of the present invention includes a reaction part provided to accommodate an organic substance to be carbonized therein, a rotating part provided to stir the inside of the reaction part, and a torch part provided to generate plasma to carbonize the organic substance inside the reaction part. The torch part is coupled to the reaction part and is provided to be coupled to the opposite side of the position where the organic substance accumulates and is stirred inside the reaction part.

[0033] Hereinafter, the present invention will be described with reference to the accompanying drawings. However, since the present invention can be implemented in various different forms, it is not limited to the embodiments described below. Also, in the drawings, parts not related to the description are omitted in order to clearly explain the present invention, and similar parts are denoted by similar reference numerals throughout the specification.

[0034] Throughout the specification, when a part is "connected (joined, contacted, coupled)" to another part, this includes not only those that are "directly connected", but also those that are "indirectly connected" via yet other members in between. Also, when a part "includes" a certain component, this means that, unless otherwise specified, it does not exclude other components, but may further include other components.

[0035] The terms used in this specification are merely for explaining specific embodiments and do not limit the present invention. Singular expressions include plural expressions unless otherwise specified. Terms such as "include" and "have" in this specification indicate the presence of the features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, and do not preclude the presence or addition possibility of one or more other features, numbers, steps, operations, components, parts, or combinations thereof in advance.

[0036] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0037] FIG. 1 is a diagram showing a configuration example of a batch-type composite temperature treatment apparatus using high-temperature plasma according to an embodiment of the present invention.

[0038] As shown in FIG. 1, a batch-type composite temperature treatment apparatus 100 using high-temperature plasma includes a reaction unit 110, a rotation unit 120, a torch unit 130, a first heat exchange unit 140, a scrubber unit 150, a mixing unit 160, a heater unit 170, a purification unit 180, a second heat exchange unit 190, and an exhaust unit 200.

[0039] The reaction unit 110 is provided to accommodate an organic substance for carbonization therein, and includes a reactor 111 and a reaction inlet / outlet 112.

[0040] The reactor 111 is formed in a circular shape and is provided such that the organic substance accumulates from below. Further, the reactor 111 is made of a stainless steel material so that rust and corrosion do not occur when the organic substance is carbonized.

[0041] FIG. 2 is a diagram showing an example in the case where the reactor of the batch type composite temperature treatment apparatus using high-temperature plasma according to an embodiment of the present invention is U-shaped.

[0042] Further, as shown in FIG. 2, the reactor 111 may be formed not only in a circular shape but also in a U-shape or the like.

[0043] The reaction inlet / outlet 112 is disposed on the upper side of one side of the reactor 111 and is provided to form a passage for introducing an organic substance into the reactor.

[0044] Further, the reaction inlet / outlet 112 is provided to exhaust the exhaust gas generated during the carbonization of the organic substance.

[0045] In particular, as shown in FIG. 1, when the region of the reactor 111 is defined as the first quadrant, the second quadrant, the third quadrant, and the fourth quadrant from the upper right side in the counterclockwise direction based on the horizontal axis and the vertical axis from the center of the reactor 111, the reaction inlet / outlet 112 is formed in either the first quadrant or the second quadrant.

[0046] As shown in the same figure, it is more preferable that the reaction inlet / outlet 112 is formed in the first quadrant.

[0047] The rotation unit 120 is provided to stir the inside of the reaction unit 110 and includes a rotation shaft 121 and a rotor 122.

[0048] The rotation shaft 121 is formed at the center of the reaction unit 110 and is provided to be rotatable.

[0049] The rotors 122 are coupled to the rotating shaft 121 and a plurality of them are provided.

[0050] The rotating shaft 121 provided in this way is provided to rotate in the same direction as the direction in which the organic matter is introduced from the reaction inlet / outlet 112.

[0051] Specifically, as shown in the figure, when the reaction inlet / outlet 112 is provided in the first quadrant, the organic matter flowing in from the reaction inlet / outlet 112 moves from the first quadrant to the fourth quadrant. Therefore, the rotating shaft 121 is provided to rotate clockwise so that the rotor 122 moves from the first quadrant to the fourth quadrant.

[0052] The torch unit 130 is provided to generate plasma and carbonize the organic matter inside the reaction unit 110. Further, the torch unit 130 is coupled to the reaction unit 110 and is provided to be coupled to the opposite side of the position where the organic matter accumulates and is stirred inside the reaction unit 110.

[0053] Specifically, the torch unit 130 is preferably provided to be coupled to the upper part of the reaction furnace 111 and to be located in the first quadrant region on the upper right side of the reaction furnace 111.

[0054] If the torch unit 130 is located in the third and fourth quadrant regions which are the lower part of the reaction furnace 111, it will be affected by the organic matter and the object to be processed introduced into the reaction furnace 111. In particular, in the case of organic matter containing a large amount of moisture such as food, there is a high possibility that moisture will penetrate into the plasma torch unit 130 and a failure will occur. Therefore, in that case, an inert gas for plasma operation must be continuously supplied from the start of the introduction of the organic matter until the organic matter treatment is completed to prevent the phenomenon that water or moisture accumulates in the plasma torch unit 130.

[0055] However, when the torch unit 130 is located above the reaction furnace 111 as in the present invention, it is possible to prevent the problem that the torch unit 130 is affected by moisture and the object to be processed.

[0056] Further, the torch unit 130 is provided such that the traveling direction of the flame is formed to coincide with the direction in which the organic matter is introduced and the direction in which the rotating unit 120 rotates, and the rotating unit 120 does not block the outlet of the torch unit 130.

[0057] If the rotating unit 120 blocks the outlet of the torch unit 130, it will affect not only the moisture but also the reactivity. Even if the organic matter is induced to carbonize, if a high temperature is maintained for a long time, it may gasify. This will induce a reaction deviating from the original purpose.

[0058] Also, when the plasma torch is located at the lower part, the plasma torch cannot be serviced without removing the contents of the reactor 111 during maintenance. However, when the torch unit 130 is located at the upper part, the structure enables attachment / detachment and maintenance without removing the contents of the reactor 111.

[0059] FIG. 3 is a diagram showing an example of the temperature at each position of the batch-type composite temperature treatment machine using high-temperature plasma according to an embodiment of the present invention.

[0060] Also, as shown in FIG. 3, as a method of carbonizing organic matter, low-temperature, medium-temperature, and high-temperature carbonization methods are generally used.

[0061] The temperature at the center of the plasma flame is about 1400 degrees or more, and this rapidly decreases when radiated to the atmosphere. Here, the drying, carbonization, and gasification steps can be induced depending on how long the reaction object is maintained in this temperature range. Also, when low-temperature carbonization is performed, organic matter other than carbon remains and the calorific value increases. When used in soil, it becomes a nutrient for plants and has the advantage of being used as a slow-acting nutrient.

[0062] In low-temperature carbonization, a large amount of cellulose and lignin are present, and the pH is maintained at about 6 to 7. However, in high-temperature carbonization, almost only the carbon component remains, and the amount of oxidized substances increases, so the ash content increases, the pH becomes as high as 9 or more, and when used in large quantities, it may have a reverse effect, and nutrients, calorific value, etc. may decrease slightly.

[0063] Medium-temperature carbonization occurs at around 400 degrees, but harmful dioxins may be generated during this process, and carbonization by-products are generated due to oil components such as tar.

[0064] As shown in FIG. 3, when the torch unit 130 composed of a DC high-temperature plasma generator is discharged in the first quadrant of the reactor 111, various temperature regions are formed in the reactor 111. Here, it is carried out in the same manner as the carbonization after drying, which is a general carbonization process. However, in this apparatus, partial low-temperature carbonization occurs even in the drying section. When the moisture content becomes 5% or less, high-temperature carbide is rapidly formed.

[0065] Specifically, medium-temperature carbonization temperature is formed at some positions, but this is only on a part of the surface of the object to be carbonized. Due to stirring and a large amount of moisture, the remaining organic matter is diluted to a low temperature by heat transfer. Also, when the moisture evaporates, the heat of vaporization is taken from the organic matter, suppressing a rapid increase in the temperature of the organic matter. Then, a low-temperature carbonization phenomenon occurs on the surface where medium-temperature carbonization occurs. If there is no stirring or moisture, very rapid high-temperature carbonization occurs and a large amount of gasification occurs. Since the present invention can suppress the gasification amount to the minimum required for carbonization, the economy of energy consumption is ensured, and carbonization can be carried out by adjusting the stirring speed of the rotating unit 120 so that the gasification amount is suppressed to the minimum.

[0066] Thus, this apparatus is characterized in that it can realize all desired low-temperature, medium-temperature, and high-temperature carbonizations by the rotating unit 120 and the torch unit 130.

[0067] FIG. 4 is an analysis table of harmful components contained in carbonization by-products generated by a conventional high-temperature carbonization method and a carbonization method of a batch-type composite temperature treatment machine using high-temperature plasma according to an embodiment of the present invention.

[0068] FIG. 4(a) shows the result of analyzing the content of harmful components after reducing the stirring speed to perform high-temperature carbonization and generating a large amount of gasification.

[0069] Figure 4(b) shows the results of analyzing the content of harmful components after performing low-temperature carbonization while adjusting the stirring speed to minimize gasification.

[0070] As shown in Figure 4, generally, the calorific value of dried organic matter and carbide is about 3,500 - 4,000 kcal / kg. This is because general dried matter contains about 10% moisture, which affects the reduction of the calorific value. That is, the components that generate heat according to the degree of carbonization are gasified and disappear, thus affecting the reduction of the calorific value. To induce the characteristic of a calorific value of 4,500 kcal / kg or more possessed by general low-temperature carbides, carbonization must be carried out at a low temperature. However, here, it is difficult to induce the moisture content to be very low, below 1%. If only low-temperature carbonization is carried out, malodorous components and the like present in the carbonization object remain as they are, and carbides with somewhat drawbacks for use in soil are generated.

[0071] The calorific value of organic carbides such as foods, pears, and yuzu using a composite temperature treatment machine is 5,000 [kcal / kg] or more. However, as shown in Figure 4, when waste fruits and garbage are treated according to the present invention, the carbide becomes not the brown color of low-temperature carbide but the black carbide form of high-temperature carbide. That is, the characteristics of the carbide are generated by the complex reaction (high temperature, low temperature) during carbonization in a form that maintains the properties of low-temperature carbide with a high calorific value.

[0072] In this way, the present invention can obtain the effect that harmful components and malodorous gases, which are the advantages of high-temperature carbonization, are decomposed while maintaining the calorific value and nutrients of the carbide, which are the advantages of low-temperature carbonization.

[0073] The torch unit 130 is coupled to the reaction furnace 111 so as to have a position and an angle for discharging plasma in a direction corresponding to the direction of the organic matter introduced from the reaction inlet / outlet 112.

[0074] More specifically, the torch unit 130 is coupled perpendicular to the tangential direction of the inner wall of the reaction furnace 111 and is provided with a discharge direction having an angle of 0 degrees or more from the tangential direction of the outer wall of the reaction furnace 111 to the inside.

[0075] Specifically, in a general carbonization reaction, when using a general steel material, rust is generated due to a large amount of moisture, and corrosion occurs. Therefore, as described above, the reactor 111 of the present invention is provided with a material made of stainless steel so that rust and corrosion do not occur.

[0076] However, when using a high-temperature plasma that generates an ultra-high temperature, harmful components such as nickel and chromium may be discharged from the stainless steel material in the high-temperature region.

[0077] In the present invention, according to the organic matter introduced inside, the stirring speed, and the form of the reactor 111, it is provided so as to reduce the discharge of harmful substances generated by thermal decomposition from the material of the reactor 111.

[0078] More specifically, the internal temperature of the reactor varies depending on the stirring speed and the position of the plasma torch unit 130. Also, the internal temperature varies depending on whether or not there is organic matter inside.

[0079] Therefore, the torch unit 130 is coupled perpendicular to the tangential direction of the inner wall of the reactor 111 and is provided with a discharge direction having an angle of 0 degrees or more from the tangential direction of the outer wall of the reactor 111 inward. Thus, the organic matter absorbs the ultra-high temperature heat generated from the plasma torch due to the rotation of the rotating unit 120 inside the reactor 111, and the structure does not affect the outer wall of the reactor 111.

[0080] Figure 5 is a table showing the amount of heavy metals generated from a conventional reactor and a reactor according to an embodiment of the present invention.

[0081] As shown in Figure 5, when arranged as described above, it is possible to minimize heavy metal components such as chromium that desorb from the inside of the reactor 111 made of stainless steel.

[0082] Also, the direction of the rotating part 120 is important. When the rotating part 120 rotates towards the plasma torch part 110, the reaction object blocks the plasma flame in front of the plasma torch, causing the direction of the plasma flame to bend and face the outer wall of the reaction furnace 111. Here, due to the high temperature of 1200 degrees or more, harmful heavy metals are instantaneously separated from the stainless steel and mixed into the target reactant, generating harmful substances. Also, the durability and endurance of the reaction furnace decrease.

[0083] However, in the present invention, in order to fabricate the reaction furnace 111 with a stainless steel material, the plasma torch part 130 is arranged above the reaction furnace 111 and mounted perpendicular to the tangential direction of the inner wall of the reaction furnace 111. Also, the direction of the plasma torch part 130 has an angle of 0° or more from the tangential direction of the outer wall towards the inside, and the direction of the rotating part 120 is maintained in the same direction as the direction of the plasma flame, so that the heavy metal components detached from the inside of the reaction furnace 111 can be minimized.

[0084] The first heat exchange part 140 is provided to heat-exchange the exhaust gas discharged from the reaction part 110 with the outside air to condense the moisture in the exhaust gas.

[0085] In the gas treatment during carbonization, generally, moisture and fine carbonized powder that evaporate initially are generated. When the moisture content reaches a minimum of about 5% or less, it is gasified and discharged in the form of nitrogen oxides such as CO and NOx.

[0086] The first heat exchange part 140 is provided such that outside air directly flows in, or is connected to the second heat exchange part 190 and provided such that the outside air that has undergone heat exchange once flows in. In this way, the first heat exchange part 140 is provided to condense the moisture in the exhaust gas by using the inflowing outside air as cooling energy.

[0087] The scrubber part 150 is connected to the first heat exchange part 140 and provided to collect dust of the fine particles of the exhaust gas that has undergone heat exchange.

[0088] The scrubber unit 150 consists of a water injection type scrubber, and is provided to collect fine particles and remove the condensed moisture.

[0089] In this way, the exhaust gas that has passed through the first heat exchange unit 140 and the scrubber unit 150 only remains as synthesis gas such as H2, CO, NO X and the like.

[0090] The mixing unit 160 is connected to the scrubber unit 150 and is provided to mix oxygen into the exhaust gas from which fine particles have been collected.

[0091] Specifically, the exhaust gas generated from the reaction unit 110 in an oxygen-free state is in a state where the oxygen component is extremely insufficient. Therefore, when the catalytic reaction by the oxidation catalyst is performed in the purification unit 180, more oxygen is required. Thus, the mixing unit 160 is provided to receive the supply of outside air from the second heat exchange unit 190 and mix it with the exhaust gas.

[0092] The heater unit 170 is provided to control the temperature of the exhaust gas into which oxygen has been mixed.

[0093] To activate the catalytic reaction in the purification unit 180, an appropriate temperature is required. Therefore, the heater unit 170 consists of an indirect contact heater and controls the temperature so that the exhaust gas moving to the purification unit 180 becomes a temperature suitable for the catalytic reaction without being oxidized.

[0094] The purification unit 180 is provided to cause a catalytic reaction with respect to the pollutants in the exhaust gas whose temperature is controlled by the heater unit 170.

[0095] Specifically, the purification unit 180 binds CO in the exhaust gas to the additionally supplied O2 by an oxidation catalyst to form CO2, and X converts NO into the form of N2 and H2O by a reducing agent and a reduction catalyst.

[0096] In this way, the purification unit 180 is provided to convert pollutants into harmless gases by a catalytic reaction.

[0097] The second heat exchange unit 190 is connected to the purification unit 180 and is provided to condense the moisture of the exhaust gas by heat exchange between the exhaust gas and the outside air. Further, the outside air whose temperature has risen is supplied to the front stage of the heater unit 170 to assist the energy consumption of the heater.

[0098] The exhaust unit 200 is provided at the rear stage of the second heat exchange unit 190 and is provided to discharge the exhaust gas composed of harmless gas.

[0099] FIG. 6 is a flowchart of an exhaust gas treatment method of a batch type composite temperature treatment machine using high-temperature plasma according to an embodiment of the present invention.

[0100] As shown in FIG. 6, in the exhaust gas treatment method of the batch type composite temperature treatment machine using high-temperature plasma, first, a step (S10) of discharging exhaust gas from the reaction unit is performed.

[0101] In the step (S10) of discharging exhaust gas from the reaction unit, carbonization occurs in the reaction unit 110, and the generated exhaust gas is discharged to the first heat exchange unit 140 side.

[0102] After the step (S10) of discharging exhaust gas from the reaction unit, a step (S20) is performed in which the first heat exchange unit exchanges heat between the discharged exhaust gas and the outside air to condense moisture.

[0103] In the step (S20) in which the first heat exchange unit exchanges heat between the discharged exhaust gas and the outside air to condense moisture, the first heat exchange unit 140 is provided to exchange heat between the discharged exhaust gas and the outside air to condense and remove moisture.

[0104] After the step (S20) in which the first heat exchange unit exchanges heat between the discharged exhaust gas and the outside air to condense moisture, a step (S30) is performed in which the scrubber unit collects fine particles of the exhaust gas in which moisture has been condensed.

[0105] In the step (S30) where the scrubber unit collects fine particles of the exhaust gas in which moisture has been condensed, the scrubber unit 150 consists of a water injection scrubber and removes fine particles and moisture in the exhaust gas.

[0106] After the step (S30) where the scrubber unit collects fine particles of the exhaust gas in which moisture has been condensed, a step (S40) is performed in which the mixing unit mixes outside air into the exhaust gas from which the fine particles have been collected.

[0107] In the step (S40) where the mixing unit mixes outside air into the exhaust gas from which the fine particles have been collected, the mixing unit 160 is connected to the scrubber unit 150 and is provided to mix oxygen into the exhaust gas from which the fine particles have been collected.

[0108] After the step (S40) where the mixing unit mixes outside air into the exhaust gas from which the fine particles have been collected, a step (S50) is performed in which the heater unit controls the temperature of the exhaust gas mixed with the outside air.

[0109] In the step (S50) where the heater unit controls the temperature of the exhaust gas mixed with the outside air, the heater unit 170 controls the temperature so that the exhaust gas moving to the purification unit 180 is at a temperature suitable for a catalytic reaction without being oxidized.

[0110] After the step (S50) where the heater unit controls the temperature of the exhaust gas mixed with the outside air, a step (S60) is performed in which the purification unit causes a catalytic reaction with respect to the pollutants in the exhaust gas whose temperature has been controlled.

[0111] In the step (S60) where the purification unit causes a catalytic reaction with respect to the pollutants in the exhaust gas whose temperature has been controlled, the purification unit 180 is provided to cause a catalytic reaction with respect to the pollutants in the exhaust gas whose temperature has been controlled by the heater unit 170.

[0112] Specifically, the purification unit 180 binds CO in the exhaust gas to O2 additionally supplied by an oxidation catalyst to form CO2, and NO XIt is provided to be converted into the form of N2 and H2O by a reducing agent and a reduction catalyst.

[0113] FIG. 7 is a graph showing the change in the oxidation catalyst temperature according to the amount of carbon monoxide generated in one embodiment of the present invention.

[0114] On the other hand, as shown in FIG. 7, in step (S60) where the purification unit causes a catalytic reaction with respect to the pollutants in the exhaust gas whose temperature is controlled, if the temperature at the subsequent stage of the oxidation catalyst for CO treatment is equal to or higher than a predetermined temperature, the purification unit 180 determines that the moisture content in the reaction furnace is less than 1% and is in a state of complete carbonization, and is provided to stop the operation of the torch unit 130.

[0115] Specifically, in the operation of the composite temperature plasma treatment apparatus, it is important to constitute the end point (complete carbonization step). Processing more than necessary results in excessive energy consumption and requires a capacity more than necessary for the configuration of the exhaust gas treatment facility.

[0116] Also, non-treatment causes insufficient carbonization, degrades the quality of by-products to be used later, and induces failures in the discharge system.

[0117] When the moisture content of the organic matter input to the reaction unit 110 becomes about 1% or less, the supplied energy is mainly used for the gasification of the organic matter rather than the evaporation of moisture, and CO is synthesized and generated at that time. Further, an oxidation reaction occurs by the CO treatment catalyst, generating heat. Therefore, without using a separate gas measurement sensor, the gas generation amount is estimated from the temperature at the subsequent stage of the CO catalyst, and based on this, when the heat generation exceeds a predetermined level, it is recognized that the moisture content is 1% or less and the carbonization is complete, and the operation of the torch unit 130 and the operation of the batch-type composite temperature treatment apparatus 100 using high-temperature plasma are terminated.

[0118] After step (S60) where the purification unit causes a catalytic reaction with respect to the pollutants in the exhaust gas whose temperature is controlled, step (S70) is performed in which the second heat exchange unit performs heat exchange between the exhaust gas that has undergone the catalytic reaction and the outside air to condense moisture.

[0119] In step (S70) where the second heat exchange unit performs heat exchange between the exhaust gas that has undergone a catalytic reaction and outside air to condense moisture, the second heat exchange unit 190 is connected to the purification unit 180 and is provided to condense the moisture in the exhaust gas by heat exchange between the exhaust gas and outside air. Further, the outside air whose temperature has risen is supplied to the front stage of the heater unit 170 to assist in the energy consumption of the heater.

[0120] After step (S70) where the second heat exchange unit performs heat exchange between the exhaust gas that has undergone a catalytic reaction and outside air to condense moisture, step (S80) is performed where the exhaust unit discharges the exhaust gas in which moisture has been condensed.

[0121] In step (S80) where the exhaust unit discharges the exhaust gas in which moisture has been condensed, the exhaust unit 200 is provided to discharge the exhaust gas composed of harmless gas.

[0122] The composite temperature processor in the present invention may be a carbonizer.

[0123] The above description of the present invention is for illustrative purposes, and those with ordinary knowledge in the technical field to which the present invention pertains can easily be deformed into other specific forms without changing the technical idea and essential features of the present invention. Note that the above embodiments are merely illustrative and not restrictive. For example, each component described as a single entity may be implemented dispersedly, and similarly, the components described as being dispersed may be implemented in a combined form.

[0124] The scope of the present invention is shown in the claims, and all modifications or variations derived from the meaning and scope of the claims and their equivalent concepts are included.

Explanation of Reference Numerals

[0125] 100 Batch-type composite temperature processor using high-temperature plasma 110 Reaction unit 111 Reaction furnace 112 Reaction inlet and outlet 120 Rotating part 121 Rotating shaft 122 Rotor 130 Torch part 140 First heat exchange part 150 Scrubber part 160 Mixing part 170 Heater part 180 Purification part 190 Second heat exchange part 200 Exhaust part

Claims

1. A reaction section configured to contain an organic substance to be carbonized therein; A rotating section configured to stir the inside of the reaction section; A torch section configured to generate plasma to carbonize the organic substance inside the reaction section, and The torch section is coupled to the reaction section and is configured to be coupled to the opposite side of the position where the organic substance accumulates and is stirred inside the reaction section A batch-type composite temperature treatment machine using high-temperature plasma, characterized in that.

2. The reaction section includes A reaction furnace formed in a circular or U shape and configured to accumulate an organic substance from below, and A reaction inlet / outlet disposed on one upper side of the reaction furnace, provided so that an organic substance can be introduced into the reaction furnace, and configured to exhaust gas The batch-type composite temperature treatment machine using high-temperature plasma according to Claim 1.

3. The rotating section includes A rotating shaft formed at the center of the reaction section, and A plurality of rotors coupled to the rotating shaft, and The rotating shaft is configured to rotate in the same direction as the direction in which the organic substance is introduced from the reaction inlet / outlet The batch-type composite temperature treatment machine using high-temperature plasma according to Claim 2.

4. The torch section is Configured to be coupled to the upper part of the reaction furnace, and Coupled so as to have a position and an angle at which plasma is discharged in a direction corresponding to the direction of the organic substance introduced from the reaction inlet / outlet The batch-type composite temperature treatment machine using high-temperature plasma according to Claim 2.

5. The reaction inlet / outlet and the torch section are configured to be located in the upper left or right region of the reaction furnace The batch-type composite temperature treatment machine using high-temperature plasma according to Claim 4.

6. The torch section is Coupled perpendicular to the tangential direction of the inner wall of the reaction furnace, and Configured to have a discharge direction at an angle of 0 degrees or more from the tangential direction of the outer wall of the reaction furnace toward the inside The batch-type composite temperature treatment machine using high-temperature plasma according to Claim 4.

7. A first heat exchange section configured to heat-exchange the exhaust gas discharged from the reaction section with outside air to condense the moisture of the exhaust gas; A scrubber section connected to the first heat exchange section and configured to collect fine particles of the exhaust gas that has undergone heat exchange; A mixing section connected to the scrubber section and configured to mix oxygen into the exhaust gas from which the fine particles have been collected; A heater section for controlling the temperature of the exhaust gas into which oxygen has been mixed A purification unit configured to cause a catalytic reaction with respect to pollutants in the exhaust gas whose temperature is controlled by the heater unit; A second heat exchange unit connected to the purification unit and configured to condense moisture in the exhaust gas by heat exchange between the exhaust gas and outside air; Further including an exhaust unit provided downstream of the second heat exchange unit and configured to discharge the exhaust gas The batch-type composite temperature treatment machine using high-temperature plasma according to claim 1.

8. The purification unit is The CO in the exhaust gas is combined with the additionally supplied O by an oxidation catalyst to form CO ２ and ２ formed NO Ｘ is provided to be converted into the form of N ２ and H ２ O by a reducing agent and a reduction catalyst, and the batch-type composite temperature treatment apparatus using a high-temperature plasma according to claim 7.

9. In the exhaust gas treatment method of the batch-type composite temperature treatment machine using high-temperature plasma according to claim 7, a) A step of discharging exhaust gas from the reaction unit; b) A step in which the first heat exchange unit performs heat exchange between the discharged exhaust gas and outside air to condense moisture; c) A step in which the scrubber unit collects fine particles of the exhaust gas in which moisture has been condensed; d) A step in which the mixing unit mixes outside air into the exhaust gas from which fine particles have been collected; e) A step in which the heater unit controls the temperature of the exhaust gas mixed with outside air; f) A step in which the purification unit causes a catalytic reaction with respect to pollutants in the exhaust gas whose temperature has been controlled; g) A step in which the second heat exchange unit performs heat exchange between the exhaust gas that has undergone a catalytic reaction and outside air to condense moisture; h) A step in which the exhaust unit discharges the exhaust gas in which moisture has been condensed An exhaust gas treatment method of a batch-type composite temperature treatment machine using high-temperature plasma, characterized by the above.

10. In the step f), The purification unit is If the temperature at the downstream of the oxidation catalyst for CO treatment is equal to or higher than a predetermined temperature, it is determined that the carbonization is complete with a moisture content of less than 1% in the reaction furnace, and the operation of the torch unit is stopped. The exhaust gas treatment method of the batch-type composite temperature treatment machine using high-temperature plasma according to claim 9.

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