Manufacturing method and manufacturing apparatus for pyrolysis residue including calcium carbonate

Abstract

To provide: a pyrolysis device capable of recovering almost all of organic matter in wastes as a carbonate nearly without discharging a greenhouse effect gas including a carbon dioxide by not burning, but thermally decomposing the wastes; and a method for manufacturing a pyrolysis residue including calcium carbonate using the pyrolysis device.SOLUTION: There are provided: a pyrolysis device that at least includes a pyrolysis processing tank provided with an air intake in its top or side face and also provided with an oxygen discharge port in a side face bottom part or bottom face, and operating to thermally decompose substances, a magnet unit located at the bottom part of the pyrolysis processing tank, and heating means; and a method for manufacturing a pyrolysis residue including a calcium carbonate from a processed product including at least animal / plant-derived organic matter by the use of the pyrolysis device.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a method for producing a pyrolysis residue containing calcium carbonate as a main component by pyrolyzing a material to be treated, and an apparatus used therefor. [Background technology]

[0002] In recent years, environmental pollution has become a serious problem, and it is difficult to simply dispose of waste. Waste, including household waste and industrial waste, is primarily disposed of by incineration. Incineration of waste requires high temperatures and requires a large amount of fuel and electricity. In addition, it is known that incineration of waste not only releases large amounts of greenhouse gases, including carbon dioxide, into the air, but also generates harmful substances such as dioxins in the incineration ash depending on the temperature during incineration.

[0003] Various devices aimed at efficiently incinerating waste have been studied. For example, Patent Document 1 discloses a pyrolysis device equipped with a magnetic action means for applying magnetism to waste during incineration. Patent Document 2 discloses a magnetic pyrolysis furnace equipped with a permanent magnet for the purpose of burning materials using air that has passed through a strong magnetic field. Patent Document 3 discloses a magnetic pyrolysis device equipped with a permanent magnet for magnetizing air for the purpose of pyrolyzing organic matter using magnetization heat. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2012-73016 A [Patent Document 2] JP 2014-13136 A [Patent Document 3] JP 2014-113574 A Summary of the Invention [Problem to be solved by the invention]

[0005] Although all conventional pyrolysis devices equipped with magnetizing means such as permanent magnets claim to perform "pyrolysis," in reality, they are intended to efficiently "combust" the material to be treated. Patent Document 1 discloses that it is related to a device with "high combustion efficiency using oxygen," Patent Document 2 discloses a combustion mechanism in which "the material to be combusted reacts violently with oxygen in microclusters, and the material to be combusted is combusted and further decomposed by the combustion heat," and Patent Document 3 discloses that it is important to supply a sufficient amount of air to the entire organic matter storage space in order to generate the magnetic heat required for decomposition of organic matter. Therefore, it can be said that these conventional technologies relate to devices for efficiently "combusting" the material to be treated.

[0006] Pyrolysis (reaction) refers to the decomposition of organic matter by heating in the absence of oxygen or halogen, and is completely different from combustion (reaction), which is a phenomenon in which organic matter and oxygen combine to produce heat and light. The oxygen concentration in air is about 21%, and there is a necessary oxygen concentration (limit oxygen concentration) to burn the object to be treated. For example, methane, a flammable gas that causes explosive combustion, does not burn when the oxygen concentration falls below 12.1%. It is also known that a candle flame goes out when the oxygen concentration falls below 17%. In the prior art, when the purpose is to efficiently burn the object to be treated, highly flammable fuel is constantly fed into the device so that the oxygen concentration does not fall below the limit, and a large amount of fresh air is also introduced to maintain the combustion state. As will be described in detail later, whether the object to be treated has been pyrolyzed or burned can be determined by analyzing the discharged gas and residue. The present invention aims to provide a pyrolysis apparatus that can recover almost all of the organic matter in waste as carbonates, without emitting greenhouse gases including carbon dioxide, by literally "pyrolyzing" the waste rather than "burning" it, and a method for producing a pyrolysis residue containing calcium carbonate as a main component from the material to be treated using the pyrolysis apparatus. [Means for solving the problem]

[0007] One embodiment of the present invention includes a pyrolysis treatment tank for pyrolyzing a substance, the pyrolysis treatment tank having an air inlet on an upper surface or a side surface and an oxygen outlet on a side bottom or a bottom surface; a magnet unit located at the bottom of the pyrolysis treatment tank; A heating means; A method for producing a pyrolysis residue containing calcium carbonate from a material to be treated containing at least an organic matter derived from an animal or plant, using a pyrolysis apparatus comprising at least A material to be treated containing at least organic matter of animal and plant origin is introduced into a pyrolysis treatment tank; Air is introduced through the air inlet, The oxygen contained in the air is attracted by the magnet unit, guided to the bottom of the thermal decomposition treatment tank, and discharged from the oxygen outlet. This production method comprises heating a material to be treated containing at least an organic matter of animal or plant origin by a heating means to pyrolyze the material to be treated containing at least an organic matter of animal or plant origin, thereby obtaining a pyrolysis residue containing calcium carbonate. Here, the magnets constituting the magnet unit are preferably selected from the group consisting of neodymium magnets, samarium cobalt magnets, alnico magnets, electromagnets, and combinations of two or more of these.

[0008] Further, a second embodiment of the present invention includes a pyrolysis treatment tank for pyrolyzing a substance, the pyrolysis treatment tank having an air inlet on the top or side and an oxygen outlet on the side bottom or bottom, a magnet unit located at the bottom of the pyrolysis treatment tank; A heating means; The present invention relates to an apparatus for producing a pyrolysis residue containing calcium carbonate by pyrolyzing a material to be treated that contains at least organic matter of animal or plant origin. Here, the magnets constituting the magnet unit are preferably selected from the group consisting of neodymium magnets, samarium cobalt magnets, alnico magnets, electromagnets, and combinations of two or more of these. Effect of the Invention

[0009] The pyrolysis device of the present embodiment can pyrolyze the material to be treated without dropping fuel. The pyrolysis of the material to be treated does not discharge greenhouse gases including carbon dioxide into the environment, and after the pyrolysis process, a pyrolysis residue containing a large amount of valuable materials including carbonates can be obtained. [Brief description of the drawings]

[0010] [Figure 1] FIG. 1 is a schematic diagram illustrating an outline of a pyrolysis apparatus according to the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] The method for producing pyrolysis residue containing calcium carbonate according to one embodiment is a method for producing carbonate by heating and chemically decomposing a material containing at least an organic matter derived from animals and plants without the presence of oxygen or halogens. The material to be pyrolyzed in the production method according to one embodiment includes at least an organic matter derived from animals and plants. Here, the organic matter derived from animals and plants means a substance containing an organic compound and derived from animals and plants including humans. Specific examples of the organic matter derived from animals and plants include food waste, paper (e.g., newspapers, cardboard, magazines, copy paper, shredded paper), food, and biological corpses. The organic matter derived from animals and plants is characterized by containing calcium as one of its components. The material to be treated used in the production method according to one embodiment preferably contains the above-mentioned organic matter derived from animals and plants, and may further contain a resin. Here, the resin includes synthetic thermoplastic resins, synthetic thermosetting resins, and mixtures thereof, as well as resin compositions containing these and other additives. In this specification, the resin particularly means a material not derived from animals or plants, that is, an artificial polymeric substance and a composition containing the same. Specific examples of resins in this specification include waste plastics and waste resins including various used plastic molded products and various resin molded products, and used medical instruments such as plastic gloves, plastic syringes, and resin tubes. In the manufacturing method of one embodiment, it is preferable to use an organic matter derived from animals and plants as the object to be treated, and further, a mixture containing an organic matter derived from animals and plants and a resin can also be used. Specific examples of mixtures containing an organic matter derived from animals and plants and a resin include waste mixtures (for example, general urban waste). The manufacturing method according to one embodiment can be carried out using an apparatus (sometimes simply referred to as a "pyrolysis apparatus" in this specification) that is configured with at least a pyrolysis treatment tank, a magnet unit, and a heating means, and that thermally decomposes a material to be treated that contains at least organic matter derived from animals and plants to produce a pyrolysis residue containing calcium carbonate. The pyrolysis treatment tank is a sealable container for containing the material to be treated so that the material can be pyrolyzed. The pyrolysis treatment tank may have various shapes, such as a roughly cylindrical, rectangular, cubic, or spherical shape, as long as it is capable of containing the material to be treated for a predetermined period of time. The pyrolysis treatment tank is preferably made of a material such as iron, steel, or stainless steel. The internal volume of the pyrolysis treatment tank is about 0.4 m, depending on the amount of material to be treated. 3 -4.0m 3 , or about 0.8 m 3 -2.0m 3 , preferably about 0.5 m 3 -1.0m 3 If the internal volume of the thermal decomposition tank is too small, it becomes difficult to control the oxygen concentration, and it may be difficult to stably continue the thermal decomposition reaction. If the internal volume of the thermal decomposition tank is too large, temperature unevenness is likely to occur inside the thermal decomposition tank, and the thermal decomposition efficiency may decrease in consideration of the time required for thermal decomposition and the amount of the material to be treated to be put in. An air inlet is provided on the top or side of the thermal decomposition tank. The air inlet, which will be described later, is provided to constantly or timely send air (specifically, low-oxygen-concentration air) required for the thermal decomposition of the material to be treated into the thermal decomposition tank. At least one air inlet may be provided, and two or more may be provided as necessary.

[0012] The magnet unit is a member composed of at least one, preferably a combination of two or more magnets. Here, the magnet constituting the magnet unit is preferably selected from the group consisting of neodymium magnets, samarium cobalt magnets, alnico magnets, electromagnets, and combinations of two or more of these. The magnet unit is a member necessary for attracting oxygen in the air introduced into the pyrolysis treatment tank and guiding it to the bottom of the pyrolysis treatment tank. It is known that oxygen is a paramagnetic substance and is attracted to strong magnetic forces. When a magnet with strong magnetic force is present in an air atmosphere, oxygen, which is a paramagnetic substance, is attracted to the magnet, whereas nitrogen is not attracted to the magnet. Furthermore, due to the difference in specific gravity between oxygen and nitrogen, oxygen tends to sink lower in air than nitrogen. If a magnet unit is placed at the bottom of a pyrolysis tank, only oxygen, which has a high specific gravity and is a paramagnetic substance, is guided toward the magnet unit in the air inside the pyrolysis tank, so that an oxygen concentration gradient is generated inside the pyrolysis tank. In other words, the oxygen concentration near the magnet unit placed at the bottom of the pyrolysis tank is high (for example, an oxygen concentration exceeding 21%), and the oxygen concentration at the top of the pyrolysis tank is low (for example, an oxygen concentration below 21%). By placing a magnet unit at the bottom of the pyrolysis tank, it is possible to create an environment at the top of the pyrolysis tank where the oxygen concentration is below the limit. Thus, in order to attract the oxygen in the air introduced into the pyrolysis treatment tank to the magnet unit, the residual magnetic flux density of the magnets constituting the magnet unit must be 900 mT or more, preferably 1000 mT or more, and more preferably 1200 mT or more.

[0013] The oxygen attracted to the magnet unit and accumulated at the bottom of the pyrolysis tank is discharged to the outside of the pyrolysis tank through an oxygen outlet provided on the side bottom or bottom surface of the pyrolysis tank. This creates a low-oxygen concentration environment inside the pyrolysis tank. A low-oxygen concentration environment means that the gas inside the pyrolysis tank has an oxygen concentration lower than the oxygen content in air (approximately 21%). The oxygen concentration suitable for pyrolyzing the material to be treated using the pyrolysis device of the present invention is 17% or less, 12% or less, or even 9% or less. Air in a low-oxygen concentration state is referred to as low-oxygen concentration air.

[0014] The thermal decomposition tank further has a heating means. The heating means is a means for increasing the temperature of the object to be treated in order to thermally decompose the object. It is preferable to use an electric heating wire as the heating means. Using the heating means, the temperature of one corner of the object to be treated inside the thermal decomposition tank can be increased to 150°C or higher, preferably 200°C or higher, and more preferably 250°C or higher. When the inside of the thermal decomposition tank is placed in the above-mentioned low oxygen concentration environment and the temperature is increased using the heating means, the object to be treated inside the thermal decomposition tank is thermally decomposed. As described above, when the temperature is increased in low oxygen concentration air, the object to be treated does not burn. When the temperature of a part of the object to be treated inside the thermal decomposition tank is increased by the heating means and the thermal decomposition reaction of the object to be treated starts, the reaction proceeds in a chain reaction and spontaneously. Therefore, there is no need to perform any further heating by the heating means. After the thermal decomposition reaction of the object to be treated starts, the heating means can be appropriately removed from the outside of the thermal decomposition tank.

[0015] When municipal waste is burned and incinerated, the resulting incineration ash is subjected to qualitative analysis using an energy dispersive X-ray fluorescence analyzer (EDX analysis). It is known that the components of the incineration ash calculated from the constituent elements are inorganic salts such as calcium oxide (CaO) 38%, chlorine (Cl) 18%, silicon dioxide (SiO2) 11%, sodium oxide (Na2O) 8%, and potassium oxide (K2O) 7% (all by mass%). The main components of municipal waste are a mixture of various wastes including waste plastics and waste resins, and organic matter of animal and plant origin such as food waste, paper, and food waste. The majority of municipal waste is organic matter (mainly carbon (C)), and other inorganic matter such as calcium (Ca), chlorine (Cl), and metals are also included. However, the incineration ash formed by burning municipal waste contains almost no carbon (C) derived from organic matter. This is because carbon derived from organic matter combines with oxygen in the air during combustion to form carbon dioxide, which is emitted as exhaust gas.

[0016] On the other hand, when EDX analysis is performed on the pyrolysis residue obtained by pyrolyzing urban waste by the manufacturing method of one embodiment, the constituent elements are about 38% oxygen (O), about 22% calcium (Ca), about 16% carbon (C), and about 7% silicon (Si) (all by mass %). It was found that the constituent components of the pyrolysis residue calculated from the constituent elements of the pyrolysis residue of urban waste are carbonates mainly composed of calcium carbonate (CaCO3). Here, the term "main component" means that about 60% or more, preferably 70% or more, and more preferably 80% or more of the mass of the pyrolysis residue is composed of calcium carbonate. When the urban waste to be treated is composed only of organic matter derived from animals and plants, the content of calcium carbonate contained in the pyrolysis residue obtained by the manufacturing method of one embodiment is about 85% or more by mass. On the other hand, when the urban waste to be treated is a mixture of organic matter derived from animals and plants and resin, it has been found that the content of calcium carbonate contained in the pyrolysis residue obtained by the manufacturing method of one embodiment is slightly reduced. Therefore, when a mixture of organic matter of animal and plant origin and resin is used as the material to be treated, it is preferable to adjust the mixing ratio of these appropriately according to the required calcium carbonate content. Furthermore, the components of the pyrolysis residue obtained by pyrolysis of municipal waste contain small amounts of charcoal and other carbonates (magnesium carbonate, potassium carbonate, etc.). When the reaction of pyrolysis of municipal waste was tracked over time, it was found that wood vinegar and wood tar were formed during the pyrolysis. In other words, it can be assumed that the pyrolysis reaction of municipal waste proceeds by a mechanism similar to the dry distillation of wood. The organic compounds that make up the majority of municipal solid waste are composed primarily of carbon, hydrogen, oxygen, and nitrogen atoms. Of these, oxygen (O) atoms are primarily found in the following structure: [ka] As shown above, they exist in the form of alcohols, ether bonds, carbonyl groups, and ester bonds. On the other hand, the structure of wood vinegar (the main component is acetic acid) which is an intermediate product of the thermal decomposition of municipal waste is as follows: [ka] On the other hand, the structure of carbonate (carbonate ion) contained as the main component in the pyrolysis residue, which is the final product of the pyrolysis process, is as follows: [ka] Comparing the oxygen bond patterns in these chemical formulas, it can be assumed that the organic compounds contained in municipal waste are thermally decomposed and converted into wood vinegar. In addition, the bond patterns of carbonate ions and acetic acid are very similar, and there are no molecular species with similar bond patterns in terms of chemical structure. Therefore, it can be inferred that the carbonates contained as the main components in the pyrolysis residue obtained by pyrolysis of municipal waste are derived from wood vinegar. As mentioned above, organic matter of animal and plant origin, which is abundant in municipal waste, contains a lot of calcium, so it is thought that the carbonate ions produced will combine with the calcium ions to produce calcium carbonate (CaCO3). Note that once the temperature of a portion of the municipal waste, which is the material being treated, rises and the pyrolysis reaction begins, the reaction proceeds in a chain reaction and spontaneously without the supply of fuel or oxygen. This is because the various reactions that make up the pyrolysis reaction of organic matter (for example, the pyrolysis reactions of hemicellulose, cellulose, and lignin) are exothermic reactions.

[0017] Thus, there is a clear difference between the components of the incineration ash from the combustion of municipal waste and the pyrolysis residue from pyrolysis. The manufacturing method according to one embodiment of the present invention includes a step of pyrolyzing a material to be treated, such as municipal waste, that contains at least organic matter of animal and plant origin, using a pyrolysis device, so that most (more than 85%) of the exhaust gas is nitrogen and almost no carbon dioxide is emitted. On the other hand, the main component of the pyrolysis residue formed is calcium carbonate, which can be traded as a valuable resource. According to the manufacturing method according to one embodiment, it is possible to obtain a pyrolysis residue (valuable resource) containing calcium carbonate without emitting greenhouse gases including carbon dioxide.

[0018] A second embodiment of the present invention is a pyrolysis apparatus for use in the manufacturing method of the first embodiment. The pyrolysis apparatus of the second embodiment includes at least a pyrolysis treatment tank for pyrolyzing a substance, the pyrolysis treatment tank having an air inlet on the top or side and an oxygen outlet on the side bottom or bottom, a magnet unit located at the bottom of the pyrolysis treatment tank, and a heating means.

[0019] The pyrolysis device of the second embodiment will be described with reference to the drawings. The drawings show an example of the pyrolysis device of the second embodiment of the present invention, and are not intended to limit the pyrolysis device of the present invention. FIG. 1 is a schematic diagram showing the configuration of a thermal decomposition apparatus 1 according to a second embodiment. In the figure, 10 is a thermal decomposition tank, 11 is an air inlet, 12 is an oxygen outlet, 13 is an exhaust gas outlet, 14 is an inlet for the material to be treated, 15 is a thermal decomposition residue outlet, 16 is a magnet unit, 17 is a heating means, 18 is an exhaust gas filtration tower, and 19 is an exhaust gas filtration unit. The inside of the thermal decomposition tank 10 has an inverted cone-shaped bottom, and the material to be treated is preferably shaped so that the material to be treated and the thermal decomposition residue gather in the center of the bottom of the thermal decomposition tank 10. The thermal decomposition tank 10 may have various shapes, such as a cylindrical shape, a rectangular parallelepiped shape, a cubic shape, a spherical shape, etc., as long as it is possible to accommodate the material to be treated for a predetermined time, and is preferably formed of a material such as iron, steel, or stainless steel. The internal volume of the thermal decomposition tank 10 is about 0.4 m, depending on the amount of the material to be treated. 3 -4.0m 3 , or about 0.8 m 3 -2.0m 3 , preferably about 0.5 m 3 -1.0m 3 The thermal decomposition treatment tank 10 can be sealed by blocking all of the inlets and outlets such as the air inlet 11 and the oxygen outlet 12.

[0020] Next, the procedure for carrying out the manufacturing method of the first embodiment using the pyrolysis device of the second embodiment will be described. First, the material to be treated is introduced into the pyrolysis treatment tank 10 from the material inlet 14 (arrows shown by double lines in the figure). The material to be treated introduced into the pyrolysis treatment tank 10 from the material inlet 14 is a waste mixture that includes organic matter of animal and plant origin such as food waste, paper (e.g., newspapers, cardboard, magazines, copy paper, shredded paper), food, and biological corpses, and may also include resin (e.g., waste plastics and waste resins including various used plastic molded products and various resin molded products, used medical instruments such as plastic gloves, plastic syringes, and resin tubes). The material to be treated introduced into the pyrolysis treatment tank 10 is accumulated at the bottom of the pyrolysis treatment tank 10.

[0021] Next, air is introduced into the thermal decomposition tank 10 through the air inlet 11 (arrow indicated by solid line in the figure). One or more air inlets 11 are provided, and two or more air inlets 11 can also be provided. The air inlet 11 may be provided on the top, side, or bottom of the thermal decomposition tank 10. In the figure, one air inlet 11 is provided on each of the left and right sides of the thermal decomposition tank 10 as viewed from the drawing. The oxygen in the air introduced through the air inlet 11 is a paramagnetic material, and is therefore attracted to the magnet unit 16 having a strong residual magnetic flux density. The magnet unit 16 is composed of one or more magnets, and the magnets are preferably selected from the group consisting of neodymium magnets, samarium cobalt magnets, alnico magnets, electromagnets, and combinations of two or more of these. The residual magnetic flux density of the magnet is 900 mT or more, preferably 1000 mT or more, and more preferably 1200 mT or more. One or more magnet units 16 are provided at the bottom of the thermal decomposition tank 10. Two or more magnet units 16 may be provided as necessary. Oxygen in the air attracted to the magnet unit 16 provided at the bottom of the pyrolysis tank 10 is guided toward the bottom of the pyrolysis tank 10. As a result of the oxygen in the air being guided to the bottom of the pyrolysis tank 10, the oxygen contained in the gas in the upper space of the pyrolysis tank 10 is relatively decreased, and as a result, a gradient is formed in the oxygen concentration inside the pyrolysis tank 10. The oxygen guided to the bottom of the pyrolysis tank 10 is discharged to the outside of the pyrolysis tank 10 through the oxygen outlet 12 (arrow indicated by a dashed line in the figure). One or more oxygen outlets 12 may be provided, and two or more oxygen outlets 12 may be provided. The oxygen outlet 12 is preferably provided on the side bottom or bottom surface of the pyrolysis tank 10. In the figure, one oxygen outlet 12 is provided slightly to the left and slightly to the right of the bottom surface of the pyrolysis tank 10. When the inside of the pyrolysis treatment tank 10 is thus brought to a low oxygen concentration environment of 17% or less, preferably 12% or less, and more preferably 9% or less, the heating means 17 is operated to heat a part of the material to be treated. As the heating means, an electric heating wire is preferably used. When the temperature of the part of the material to be treated inside the pyrolysis treatment tank 10 reaches approximately 150°C or more, preferably 200°C or more, and more preferably 250°C or more, by heating with the heating means 17, the pyrolysis of the material to be treated that has been introduced starts.Once the pyrolysis of the material begins, there is no need to input a large amount of air or fuel, and the pyrolysis proceeds spontaneously and in a chain reaction. As pyrolysis proceeds, pyrolysis residues are generated and pile up at the bottom of the pyrolysis tank 10, causing the material to smolder. The material itself in the smoldering state becomes a heat source and helps maintain the temperature inside the pyrolysis tank 10.

[0022] Thus, the thermal decomposition of the material to be treated proceeds in a low oxygen concentration environment, resulting in a thermal decomposition residue mainly composed of carbonate (calcium carbonate). The thermal decomposition residue can be discharged from the thermal decomposition residue discharge port 15 at any time during the thermal decomposition, or all the generated thermal decomposition residues can be discharged from the thermal decomposition residue discharge port 15 together after the thermal decomposition is completed. The thermal decomposition residue discharge port 15 can be provided on the side bottom or bottom surface of the thermal decomposition treatment tank 10. In the figure, the thermal decomposition residue discharge port 15 is provided on the side bottom of the front side of the thermal decomposition treatment tank 10 as viewed from the drawing. The thermal decomposition residue discharged from the thermal decomposition residue discharge port 15 contains a large amount of calcium carbonate (approximately 60% or more, preferably 70% or more, and more preferably 80% or more), and can be traded as a valuable resource. In addition, the exhaust gas generated by the thermal decomposition treatment can be passed through the exhaust gas filtration tower 18. The exhaust gas is passed through an exhaust gas filtration unit 19, which is arranged inside the exhaust gas filtration tower 18 and is composed of various adsorbents such as water and filter paper, as indicated by the dotted arrow in the figure. The exhaust gas from which odors and the like have been removed in this way is discharged from the exhaust gas outlet 13. More than 80% of the exhausted exhaust gas is nitrogen, and the exhaust gas contains almost no carbon dioxide. On the other hand, the adsorbent (e.g., water) contained in the exhaust gas filtration unit 19, which is arranged inside the exhaust gas filtration tower 18 and through which the exhaust gas has passed, can be discharged from an adsorbent outlet provided in the exhaust gas filtration tower 18 after appropriate environmental analysis (the adsorbent outlet is not shown).

[0023] Using the pyrolysis device of the present invention, materials to be treated, such as waste, can be pyrolyzed to produce pyrolysis residue containing calcium carbonate. In this case, large amounts of air and fuel, which were previously required for incinerating waste, are not required. When materials to be treated, including waste, are pyrolyzed using the pyrolysis device of the present invention, greenhouse gases including carbon dioxide are not generated, and the pyrolysis residue generated by the pyrolysis contains carbonate as a main component and can be traded as a valuable commodity. [Explanation of symbols]

[0024] 1 Pyrolysis equipment 10. Pyrolysis treatment tank 11 Air inlet 12 Oxygen outlet 13 Exhaust gas outlet 14 Processing material inlet 15 Pyrolysis residue outlet 16 Magnet unit 17 Heating means 18 Exhaust gas filter tower 19 Exhaust gas filtration unit

Claims

1. a pyrolysis treatment tank for pyrolyzing a substance, the tank having an air inlet on a top surface or a side surface and an oxygen outlet on a side surface or a bottom surface; a magnet unit located at the bottom of the pyrolysis treatment tank; A heating means; A method for producing a pyrolysis residue containing calcium carbonate from a material to be treated containing at least an organic matter derived from an animal or plant, using a pyrolysis apparatus comprising at least A material to be treated containing at least organic matter of animal and plant origin is introduced into a pyrolysis treatment tank; Air is introduced through the air inlet, The oxygen contained in the air is attracted by the magnet unit, guided to the bottom of the thermal decomposition treatment tank, and discharged from the oxygen outlet. A production method comprising heating a material to be treated containing at least an organic matter of animal or plant origin by a heating means to pyrolyze the material to be treated containing at least an organic matter of animal or plant origin, thereby obtaining a pyrolysis residue containing calcium carbonate.

2. The manufacturing method according to claim 1 , wherein the magnet constituting the magnet unit is selected from the group consisting of a neodymium magnet, a samarium cobalt magnet, an alnico magnet, an electromagnet, and a combination of two or more thereof.

3. a pyrolysis treatment tank for pyrolyzing a substance, the tank having an air inlet on a top surface or a side surface and an oxygen outlet on a side bottom or a bottom surface; a magnet unit located at the bottom of the pyrolysis treatment tank; A heating means; The present invention relates to an apparatus for producing a pyrolysis residue containing calcium carbonate by pyrolyzing a material to be treated that contains at least organic matter of animal or plant origin.

4. 4. The apparatus according to claim 3, wherein the magnets constituting the magnet unit are selected from the group consisting of neodymium magnets, samarium cobalt magnets, alnico magnets, electromagnets, and combinations of two or more thereof.

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