Carbonization plant for organic resource and method for producing organic resource charcoal

Abstract

To provide a carbonization plant capable of efficiently producing charcoal.SOLUTION: A carbonization plant for continuously performing drying and carbonization of an organic resource comprises: (a) two or more furnaces; and (b) an exhaust gas treatment apparatus. Each furnace includes a detachable upper lid, a middle cage, and a pedestal part. The furnaces are connected to each other via the exhaust gas treatment apparatus in a ventilatable manner, and each furnace is capable of switching between a drying process and a carbonization process of the organic resource by attaching or detaching the upper lid.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a carbonization device capable of continuously carbonizing organic resources. [Background technology]

[0002] As an alternative to fossil fuels, power generation using biomass fuels derived from organic resources has been attracting attention. Furthermore, the use of charcoal as a biomass fuel has been attracting attention from the viewpoint of energy density.

[0003] In the production of wood charcoal, the moisture content of the wood material has a significant effect on the final carbonization rate and the time it takes to obtain charcoal, so manual work is still required to visually check and judge the charcoal kiln. For example, the production of binchotan charcoal requires about a week of carbonization time.

[0004] Charcoal production devices have been developed with the aim of improving the efficiency of charcoal production (see Patent Document 1). [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2001-139956 Summary of the Invention [Problem to be solved by the invention]

[0006] The optimum conditions for carbonization, such as the temperature and time, vary depending on the type of organic material used to make charcoal and the amount of moisture in the material. Therefore, a carbonization device that can efficiently produce charcoal from a wide range of organic materials makes it possible to use a wide range of organic materials. However, such carbonization equipment requires individual furnaces to be prepared depending on the type of organic resource, making it difficult to enlarge or automate the production equipment, and there is no equipment that can efficiently produce large amounts of charcoal.

[0007] Therefore, an object of the present invention is to provide a carbonization apparatus that eliminates the above-mentioned disadvantages, that is, that can efficiently produce charcoal. [Means for solving the problem]

[0008] As a result of extensive research, the inventors discovered that the above problem could be solved by compensating for the heat required in the pretreatment process of organic resources with heat generated in a separate carbonization process.Further research led to the completion of the present invention.

[0009] That is, typical aspects of the present invention are as follows. [1] A carbonization apparatus for continuously drying and carbonizing organic resources, The carbonization device is (a) Two or more furnaces; and (b) an exhaust gas treatment device; The furnace includes a removable upper lid, an inner basket, and a base portion; are connected to each other via the exhaust gas treatment device so as to be able to ventilate, By attaching and detaching the upper lid, the process can be switched between the drying process and the carbonization process of organic resources. The carbonization device. [2] The carbonization apparatus according to [1], wherein the furnace and the exhaust gas treatment device are connected in a ventilated manner by an exhaust gas intake duct and an exhaust duct provided in the base of the furnace. [3] The exhaust gas treatment device comprises: The exhaust gas generated in a furnace for carbonizing organic resources is taken into the gas treatment device, The exhaust gas is combusted in the gas treatment device; The exhaust gas from the combustion is discharged into a furnace where the organic materials are dried. [1] The carbonization apparatus according to the present invention. [4] The carbonization apparatus according to [3], wherein the exhaust gas treatment device burns the exhaust gas at a temperature of 300°C to 1000°C. [5] The carbonization apparatus according to [1], wherein the organic resources include wood or grass materials, and are virgin, waste-derived, or a mixture thereof. [6] A method for producing organic resource coal, The manufacturing method includes: (a) a carbonization step in which organic materials are carbonized in a furnace; (b) an exhaust gas treatment step in which the exhaust gas generated in step (a) is treated in the exhaust gas treatment device; and (c) a drying step of drying the organic material in a furnace different from the furnace used in the step (a) using the exhaust gas treated in the step (b), This method for producing organic resource carbonization involves switching between furnaces for the drying process and the carbonization process by attaching and detaching the top lid of the furnace, thereby continuously carbonizing organic resources. [Effects of the Invention]

[0010] According to the carbonization device of the present invention, charcoal can be produced efficiently. Furthermore, according to the carbonization apparatus of the present invention, the drying process can reduce variations in the moisture content of organic resources, making it possible to produce charcoal of consistent quality. Furthermore, the carbonization apparatus of the present invention is a combination of two or three or more furnaces of the same type, and since the organic resources can be dried and carbonized in the same furnace without having to be transferred, it is easy to enlarge and automate the manufacturing equipment. The carbonization apparatus of the present invention is as described above. (a) Two or more furnaces; and (b) Exhaust gas treatment equipment The two or more furnaces in (a) can be used for both drying organic resources and carbonizing organic materials, and are also connected to each other via the exhaust gas treatment device so that they can be ventilated. Therefore, in the device of the present invention, the heat generated in the carbonization step in one furnace can be used in another furnace to perform the drying step, making it possible to carry out the drying step and carbonization step simultaneously and with high thermal efficiency. Furthermore, since two or more furnaces can be switched between the drying process and the carbonization process, the dried organic material can be directly subjected to the carbonization process in the same furnace without being transferred. Such a furnace has never been known before, nor has a carbonization apparatus equipped with an exhaust gas treatment device to which the furnace is connected so as to be ventilated been known before. Furthermore, the carbonization efficiency that can be achieved by the carbonization apparatus of the present invention is significantly higher than that of the prior art. Therefore, the present invention is not only different from the prior art, but is also an invention that a person skilled in the art could not have arrived at from the prior art. [Brief explanation of the drawings]

[0011] [Figure 1] FIG. 1 is a schematic diagram of a carbonization apparatus according to the present invention. [Figure 2] FIG. 2 is a schematic diagram showing one embodiment of the present invention. [Figure 3] FIG. 3 is a schematic diagram of a furnace provided in the carbonization apparatus of the present invention. [Figure 4] FIG. 4 is a schematic diagram illustrating a furnace in the carbonization step. [Figure 5] FIG. 5 is a schematic diagram illustrating a furnace used in the drying process. [Figure 6] FIG. 6 is a schematic diagram of a carbonization apparatus according to one embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0012] The present invention provides A carbonization apparatus for continuously drying and carbonizing organic resources, The carbonization device is (a) Two or more furnaces; and (b) an exhaust gas treatment device; The furnace includes a removable upper lid, an inner basket, and a base portion; are connected to each other via the exhaust gas treatment device so as to be able to ventilate, By attaching and detaching the upper lid, the process can be switched between the drying process and the carbonization process of organic resources. The carbonization device.

[0013] That is, the carbonization apparatus of the present invention is equipped with two or more furnaces and an exhaust gas treatment device.

[0014] The furnace includes a removable top lid, a middle basket, and a base. The furnace can dry and carbonize organic resources placed in the middle basket. Switching between drying and carbonization can be achieved by attaching and detaching the top lid. Specifically, by attaching the top lid to the middle basket, the furnace functions as a sealed furnace, allowing the organic resources placed in the middle basket to be heated and carbonized while being blocked from oxygen. Meanwhile, by removing the top lid from the middle basket, the heat flow taken in from the lower part of the middle basket via the base can be released outside the furnace through the upper part of the middle basket. This allows the organic resources placed in the middle basket to be dried while preventing the organic resources from burning due to an excessive rise in temperature inside the furnace.

[0015] In the furnace, ignition material is placed on the base and ignited to carbonize the organic materials in the middle basket. Therefore, heat transfer during the carbonization process occurs vertically from the base to the middle basket, enabling the organic materials to be carbonized uniformly.

[0016] The exhaust gas treatment device can treat the exhaust gas taken into the exhaust gas treatment device and release the treated exhaust gas (sometimes referred to as "heat flow" in this specification) outside the exhaust gas treatment device. By treating the exhaust gas, impurities contained in the exhaust gas, including chlorine, phosphorus, potassium, etc., can be removed. Therefore, the heat flow released from the exhaust gas treatment device does not contain impurities, and therefore has a small environmental impact. Furthermore, since these impurities cause deterioration of power generation equipment, it is preferable that the organic resource coal does not contain impurities. Therefore, the carbonization device of the present invention is superior to conventional carbonization devices in that it can reduce the amount of impurities contained in the organic resource coal finally obtained by using the heat flow to dry the organic resource.

[0017] In the carbonization apparatus of the present invention, the furnaces and the exhaust gas treatment device are connected to each other via the exhaust gas treatment device so that the furnaces can be ventilated to each other. By connecting two or more furnaces via the exhaust gas treatment device in this way, the exhaust gas generated in the carbonization process of the organic resource can be treated in the exhaust gas treatment device, and the heat flow treated in the exhaust gas treatment device can be used in the drying process of the organic resource.

[0018] Since one furnace can both carbonize and dry organic resources, two or more furnaces of the same type can be used. Therefore, unlike conventional carbonization equipment equipped with a single furnace, the carbonization apparatus of the present invention can easily be enlarged by increasing the number of furnaces. There is no particular limit to the number of furnaces, but it is preferable that the number of furnaces used for carbonization and the number of furnaces used for drying in one operation be the same. When the number of furnaces is increased, the furnaces that perform carbonization and the furnaces that perform drying in a single operation (hereinafter, multiple furnaces that perform the same process in a single operation may also be referred to as a "furnace group") may be connected to each other in a manner that allows ventilation via an exhaust gas treatment device, and the connection between the furnaces in a furnace group is not particularly limited. For example, the furnace group may be connected to the exhaust gas treatment device by a single duct, or each of the furnaces in the furnace group may be connected to the exhaust gas treatment device by multiple ducts.

[0019] In one aspect of the present invention, the furnace and the exhaust gas treatment device can be connected in a ventilated manner by an exhaust gas intake duct and an exhaust duct provided on the base of the furnace. The terms "intake" and "exhaust" in the description of the ducts are distinguished by the role of the duct as viewed from the exhaust gas treatment device. That is, the intake duct is a duct for taking in the exhaust gas (i.e., untreated exhaust gas) generated in the furnace during the carbonization process into the exhaust gas treatment device. On the other hand, the exhaust duct is a duct for discharging the exhaust gas treated in the exhaust gas treatment device into the furnace for the drying process. As described above, the intake duct and the exhaust duct are defined by their roles, and therefore may be a single duct used for both intake and exhaust, or two or more ducts according to their roles.

[0020] The furnace and the exhaust gas treatment device are connected in a ventilated manner by an exhaust gas intake duct and an exhaust duct provided on the base of the furnace. This allows the exhaust gas generated during the carbonization process of the organic waste to be treated in the exhaust gas treatment device, and the heat flow treated in the exhaust gas treatment device to be used in the drying process of the organic waste. Furthermore, during the drying process, the heat flow is released from the lower part of the middle basket through the upper part to the outside of the furnace, allowing the organic waste placed in the middle basket to be dried efficiently. Furthermore, as described above, since the intake duct and the exhaust duct are provided on the base, the middle basket can be turned upside down during the drying process, for example, allowing the organic waste in the middle basket to be dried evenly.

[0021] In one aspect of the present invention, the exhaust gas treatment device can be a carbonization device that takes in exhaust gas generated in a furnace performing a carbonization process for organic resources, combusts the exhaust gas in the exhaust gas treatment device, and discharges the combusted exhaust gas into a furnace performing a drying process for the organic resources. According to this aspect, impurities such as chlorine, phosphorus, and potassium contained in the exhaust gas generated in the carbonization process can be removed, and the impurity-free heat flow can be used to dry the organic resources. As a result, the amount of impurities contained in the organic resource coal obtained by further carbonizing the dried organic resource can be reduced, thereby producing high-quality organic resource coal.

[0022] Furthermore, the heat of the exhaust gas generated in the carbonization process of the organic resources can be used to carry out the drying process of the organic resources, so that the carbonization process and the drying process can be carried out simultaneously in the entire carbonization device.

[0023] In one embodiment of the present invention, the exhaust gas treatment device can combust exhaust gas at a temperature of 300°C to 1000°C. When combusting exhaust gas, the combustion temperature can be 300°C to 1000°C. The combustion temperature may be preferably 600°C to 1000°C, more preferably 700°C to 1000°C, and even more preferably 800°C to 1000°C. By combusting exhaust gas at the above temperatures, a heat flow from which impurities in the exhaust gas have been removed can be obtained. Furthermore, the exhaust gas treatment device can lower the temperature of the heat flow and then release it outside the exhaust gas treatment device. Specifically, in the carbonization device of the present invention, the exhaust gas treated in the exhaust gas treatment device can be lowered to 80°C to 200°C and used as a heat flow for drying organic resources.

[0024] In one embodiment of the present invention, the organic resource to be carbonized includes wood or grass material, and can be virgin, waste-derived, or a mixture thereof.

[0025] The wood material is not particularly limited, and coniferous trees such as cedar, cypress, and pine, or broad-leaved trees such as zelkova, cherry, and oak, can be used. The shape of the wood material is also not particularly limited, and for example, logs, timber, boards, chips, etc. can be used. Furthermore, the wood material is not limited to tree trunks, and bark, roots, leaves, fruits, etc. can also be used. The grass material is not particularly limited, and bamboo, rice, millet, corn, etc. can be used.

[0026] The organic resources may be unused, derived from waste, or a mixture of these. Examples of waste-derived organic resources include thinned wood, scrap wood, construction waste, coconut shells, etc.

[0027] The organic resources described above contain moisture. The amount of moisture contained in the organic resources, i.e., the moisture content, is calculated based on the weight of the organic resource without moisture. Generally, the moisture content of organic resources varies depending on the type and the time elapsed since felling, but is approximately 15% to 65%. In the carbonization process, differences in moisture content cause differences in carbonization time, so carbonizing the organic resources as is results in unevenness. According to the carbonization apparatus of the present invention, the moisture content of the organic resources can be reduced to approximately 15% or less through the drying process, thereby shortening the time required for the subsequent carbonization process and preventing unevenness. As a result, efficient production of organic resource charcoal and stabilization of the quality of the organic resource charcoal can be achieved.

[0028] The shape of the organic resource is not particularly limited, but from the viewpoint of ease of use of the obtained organic resource carbon and uniform carbonization, it is preferable to make it into a pellet shape.

[0029] Further aspects of the present invention are as follows. A method for producing organic resource coal, The manufacturing method includes: (a) a carbonization step in which organic materials are carbonized in a furnace; (b) an exhaust gas treatment step in which the exhaust gas generated in step (a) is treated in the exhaust gas treatment device; and (c) a drying step of drying the organic material in a furnace different from the furnace used in the step (a) using the exhaust gas treated in the step (b), This method for producing organic resource carbonization involves switching between furnaces for the drying process and the carbonization process by attaching and detaching the top lid of the furnace, thereby continuously carbonizing organic resources.

[0030] In the manufacturing method of the present invention, the exhaust gas generated in the carbonization process of the organic resource is treated, and the heat flow obtained by treating the exhaust gas is used to dry the organic resource. As a result, the manufacturing method of the present invention can obtain organic resource coal and dried organic resource in a single operation. Furthermore, by removing the organic resource coal from the furnace where the carbonization process was performed, adding undried organic resource, and switching between the furnace where the carbonization process is performed and the furnace where the drying process is performed, it is possible to continuously carbonize the organic resource.

[0031] The drying process and carbonization process can be switched by attaching and detaching the top lid of the furnace, so organic resources can be dried and carbonized in the same furnace without having to be transferred to a carbonization furnace.

[0032] Step (a) is a carbonization step in which organic resources are carbonized in a furnace. In step (a), a top lid is attached to the furnace. As a result, the furnace functions as a sealed furnace, and the organic resources can be heated and carbonized while being blocked from oxygen.

[0033] The carbonization conditions in step (a) vary depending on the type of organic resource, but the carbonization temperature can be adjusted in the range of 300°C to 700°C. For example, by setting the carbonization temperature to 600°C to 700°C, impurities such as chlorine, phosphorus, and potassium contained in the exhaust gas generated in the carbonization step can be suppressed. On the other hand, for organic resources with few impurities, the carbonization temperature can be set to 300°C to 400°C. In this way, in the production method of the present invention, the carbonization temperature can be appropriately adjusted depending on the type of organic resource to be carbonized. In the method of the present invention, examples of organic resources to be carbonized include those mentioned above.

[0034] The carbonization time in step (a) generally varies depending on the state of the organic resource, but can be shortened to approximately 6 to 24 hours by using organic resource that has undergone a drying step, which will be described later.

[0035] Step (b) is an exhaust gas treatment step in which the exhaust gas generated in step (a) is treated in the exhaust gas treatment device. In step (b), the exhaust gas can be combusted at a temperature of 300°C to 1000°C. The temperature may be preferably 600°C to 1000°C, more preferably 700°C to 1000°C, and even more preferably 800°C to 1000°C. By combusting the exhaust gas at the above temperature, impurities in the exhaust gas can be removed.

[0036] The exhaust gas treated in step (b) is cooled to about 80°C to 200°C, and then used as a heat flow for drying organic resources in step (c) described below.

[0037] Step (c) is a drying step in which the organic waste is dried in a furnace different from that used in step (a) using the exhaust gas treated in step (b). In step (c), the top lid is removed from the furnace. Therefore, the heat flow blown in from the bottom of the furnace is released from the top of the furnace, allowing the organic waste placed in the middle basket to be dried while preventing the organic waste from burning due to an excessive rise in the temperature inside the furnace.

[0038] In step (c), the organic materials in the furnace may be rearranged as appropriate during the drying process. The rearrangement may involve stirring the organic materials in the furnace. Furthermore, when the furnace is separable into an inner basket and a base, the rearrangement may involve turning the inner basket upside down. By rearranging the organic materials during the drying process, the organic materials can be dried uniformly.

[0039] The moisture content of the dried organic resource after step (c) can be about 5% to 10%. By drying the organic resource in step (c), the time required for the subsequent carbonization step can be shortened and unevenness can be prevented.

[0040] In the production method of the present invention, the organic resource dried in step (c) can be used and the next step (a) can be carried out by simply attaching an upper lid to the furnace in which step (c) has been carried out. Therefore, the production method of the present invention can continuously carbonize organic resource coal by alternately repeating the carbonization step and the drying step in one furnace.

[0041] For better understanding, the structure of the carbonization apparatus of the present invention and the method for producing organic resource carbon using the carbonization apparatus of the present invention will be described below with reference to the drawings. However, the carbonization apparatus of the present invention is not limited to the drawings.

[0042] FIG. 1 is a schematic diagram showing the carbonization apparatus and the manufacturing method of the present invention. In FIG. 1, 1a and 1b represent furnaces. The furnaces 1a and 1b include removable upper lids 2a and 2b. In FIG. 1, 3 represents an exhaust gas treatment device. The furnaces 1a and 1b are connected to each other in a manner that allows ventilation via an exhaust gas treatment device 3. Furthermore, the furnace 1a and the exhaust gas treatment device 3 are connected to each other in a manner that allows ventilation via a duct 4a, and the furnace 1b and the exhaust gas treatment device 3 are connected to each other in a manner that allows ventilation via a duct 4b. In FIG. 1, the flow of exhaust gas generated in the carbonization step is indicated by arrows. In Fig. 1, the two furnaces are labeled as furnace 1a and furnace 1b to distinguish them, but they have the same structure. Ducts 4a and 4b are labeled in different positions depending on whether they are before or after the treatment of the exhaust gas by the exhaust gas treatment device, but this does not indicate the actual connection positions of the furnace and duct.

[0043] In FIG. 1(A), a top lid 2a is attached to furnace 1a, and the carbonization process is carried out in furnace 1a. The exhaust gas generated in the carbonization process passes through duct 4a and is sent to exhaust gas treatment device 3. The exhaust gas treated in exhaust gas treatment device 3 passes through duct 4b and is sent to furnace 1b. The top lid 2b has been removed from furnace 1b, and the drying process is carried out in furnace 1b. After the carbonization process and drying process are completed in the state shown in FIG. 1(A), the obtained organic resource charcoal can be removed from furnace 1a, and undried organic resource can be placed in furnace 1a, and the carbonization process and drying process can be further carried out in the state shown in FIG. 1(B).

[0044] In Figure 1(B), an upper lid 2b is attached to furnace 1b, and the carbonization process is carried out in furnace 1b. The exhaust gas generated in the carbonization process passes through duct 4b and is sent to exhaust gas treatment device 3. The exhaust gas treated in exhaust gas treatment device 3 passes through duct 4a and is sent to furnace 1a. The upper lid 2a has been removed from furnace 1a, and the drying process is carried out in furnace 1a. After the carbonization process and drying process are completed in the state shown in Figure 1(B), the obtained organic resource charcoal can be removed from furnace 1b, and undried organic resource can be placed in furnace 1b, and the carbonization process and drying process can be further carried out in the state shown in Figure 1(A).

[0045] As described above, by alternately switching between the states of FIG. 1(A) and FIG. 1(B), organic resources can be carbonized continuously.

[0046] Figure 2 shows a schematic diagram of one embodiment of the present invention observed from above. From the viewpoint of switching between the carbonization process and the drying process described above and the movement of exhaust gas, it is preferable that the carbonization apparatus of the present invention is arranged so that furnaces 1a and 1b are approximately symmetrical with respect to exhaust gas treatment device 3, as shown in Figure 2. In Figure 2, furnace 1a and duct 4a (or furnace 1b and duct 4b) are connected by three ducts. The three ducts are exhaust gas intake ducts or exhaust ducts. The intake duct is a duct for taking in exhaust gas from the furnace to the exhaust gas treatment device when the carbonization process is performed in the furnace. The exhaust duct is a duct for discharging heat flow from the exhaust gas treatment device to the furnace when the drying process is performed in the furnace. 2, the intake ducts and the exhaust ducts are shown as three ducts, but the number of these ducts is not particularly limited, and for example, there may be two intake ducts and two exhaust ducts, for a total of four ducts, or there may be one duct that serves as both the intake duct and the exhaust duct. The intake duct and the exhaust duct are connected to the exhaust gas treatment device 3 via duct 4a or 4b.

[0047] Figures 3 to 5 show the structure of the furnace 1 provided in the carbonization apparatus according to one embodiment of the present invention. Figure 3 shows the structure of the furnace 1, Figure 4 shows the furnace 1 in the carbonization step, and Figure 5 shows the furnace 1 in the drying step.

[0048] As shown in Fig. 3, the furnace 1 includes an upper lid 2, an inner basket 5, and a base 6. The base 6 is provided with an ignition hole 7. Furthermore, as shown in Figs. 4 and 5, the base 6 is provided with an intake duct 8 and an exhaust duct 9.

[0049] The furnace 1 can be switched between the drying process and the carbonization process for organic resources by attaching and detaching the top lid 4. By covering the middle basket 5 with the top lid 4, the furnace 1 can be made airtight, allowing the organic resources placed in the middle basket to be carbonized. On the other hand, by removing the top lid 4 from the middle basket 5, water vapor can be released from the top of the middle basket 5, allowing the organic resources placed in the middle basket 5 to be dried.

[0050] The inner basket 5 can be used as a place for carbonizing or drying organic resources by placing organic resources inside it. The top and bottom of the inner basket 5 are designed to be breathable. This structure allows heat flow to be introduced into the inner basket 5 from the base 6 during both the carbonization and drying processes, thereby promoting the carbonization and drying of the organic resources. The top and bottom of the inner basket 5 are preferably made of a mesh structure. The mesh structure of the top and bottom of the inner basket 5 allows the furnace 1 to be used without limiting the top and bottom of the inner basket 5. Therefore, particularly when the furnace 1 is used in the drying process, the entire organic resources in the inner basket 5 can be dried uniformly by turning the inner basket 5 upside down during the drying process.

[0051] The base 6 is connected to the exhaust gas treatment device via a duct so that it can be ventilated. By placing the middle basket 5 on the base 6, the organic resources placed inside the middle basket 5 can be carbonized or dried. In the carbonization process, as shown in Figure 4, an ignition material is placed on the base 6 and ignited through the ignition hole 7, which starts the carbonization process. In the carbonization process, the exhaust gas generated by the carbonization of the organic resources can be taken into the exhaust gas treatment device from the base 6 through the intake duct 8, as shown by the arrow in Figure 4. Meanwhile, in the drying process, the heat flow processed by the exhaust gas treatment device is sent from the base 6 to the middle basket 5 through the exhaust duct 9 and released from the top of the middle basket 5, as shown by the arrow in Figure 5.

[0052] 4 and 5, the carbonization apparatus and manufacturing method of the present invention allow switching between the carbonization process and the drying process by attaching and detaching the upper lid 2, so that the organic resources can be carbonized and dried continuously without transferring the dried organic resources. Therefore, the carbonization time can be shortened by drying the organic resources, and charcoal can be produced efficiently.

[0053] Furthermore, since the carbonization apparatus of the present invention only requires two or more furnaces and an exhaust gas treatment device, it is easy to scale up and automate the production equipment. Specifically, as shown in FIG. 6, by connecting one or more furnaces of the same type, the amount of organic resource coal that can be produced at one time can be increased. Note that while FIG. 6 shows a configuration in which five furnaces are connected side by side, the number of furnaces is not particularly limited. From the viewpoint of the amount of exhaust gas generated and continuous processing by switching between carbonization and drying, it is preferable that the number of furnaces in the group of furnaces performing the carbonization process and the group of furnaces performing the drying process be the same. As explained above, as long as the exhaust gas or heat flow can move between the furnaces and the exhaust gas treatment device, there are no particular limitations on the connection between the exhaust gas treatment device and each furnace. As shown in FIG. 6, a configuration in which a group of furnaces consisting of each furnace is connected to the exhaust gas treatment device by a breathable connecting member branching from a single duct, or a configuration in which each furnace is connected to the exhaust gas treatment device by multiple individual ducts, may be used.

[0054] Furthermore, the carbonization apparatus of the present invention can not only suppress unevenness in the carbonization of organic resources but also remove impurities, making it possible to produce charcoal of consistent quality. [Example]

[0055] The present invention will be described in more detail with reference to the following examples, but the present invention is not limited to these examples.

[0056] A single carbonization operation was performed using the carbonization apparatus of the present invention. For ease of explanation, the furnace in which organic resources are carbonized will be referred to as the "carbonization furnace," and the furnace in which organic resources are dried will be referred to as the "drying furnace." Furthermore, since the carbonization apparatus of the present invention can be switched between a carbonization furnace and a drying furnace, the furnace that initially functions as a carbonization furnace will be referred to as "furnace A," and the furnace that initially functions as a drying furnace will be referred to as "furnace B." The organic materials used for carbonization were as follows: A mixture of wood chips, coconut shells, culture medium, rice stalks, coffee bean husks, bamboo, wood chips (for mushroom beds, etc.), clothing (cotton), coconut shells, rice husks, branches and leaves, and bark.

[0057] In furnace A, about half of the organic materials were placed in the inner basket of furnace A, ignition material was placed on the base, and the top lid was attached (see Figure 4). In furnace B, approximately half of the remaining organic material was placed in the inner basket of furnace B, and the top lid was removed (see FIG. 5).

[0058] The ignition material was ignited through a spark hole in furnace A, carbonizing the organic materials in furnace A. The exhaust gas generated in furnace A, which is a carbonization furnace, was drawn into an exhaust gas treatment device via an intake duct. In the exhaust gas treatment device, the exhaust gas was combusted at a set temperature of 900°C. The combusted exhaust gas was drawn into furnace B, which is a drying furnace, via an exhaust duct.

[0059] After 6 hours, the carbonization of the organic resources in the carbonization furnace and the drying of the organic resources in the drying furnace were completed. After that, ignition material was placed on the base of furnace B, and the top lid was attached to the drying furnace. Using furnace B as the carbonization furnace, the organic resources in furnace B were carbonized over 6 hours in the same manner as above.

[0060] After carbonization of the organic resources in furnace B was completed, the organic resource coal was removed from the inner basket. The obtained organic resource coal was analyzed.

[0061] The analysis results for organic resource coal are shown in Table 1. The evaluation of each analysis item was performed in accordance with the JIS standard shown in the analysis method. [Table 1] [Industrial Applicability]

[0062] According to the present invention, compared to conventional carbonization devices such as charcoal kilns, organic resource coal can be obtained not only more efficiently but also with stable quality. Furthermore, the carbonization device of the present invention can be easily scaled up. Therefore, it can contribute to the development of fields that require large quantities of high-quality organic resource coal. Specifically, it will greatly contribute to the development of various fields, such as the power generation industry, which requires fuel for power generation, the steelmaking industry, which is expected to use organic resource coal as a foaming inhibitor, and soil conditioners, water purification materials, feed additives, and dehumidifiers that contain organic resource coal as an ingredient. [Explanation of symbols]

[0063] 1, 1a, 1b: Furnace 2, 2a, 2b: Top lid 3: Exhaust gas treatment equipment 4a, 4b: Duct 5: Medium basket 6: Base 7: Burning hole 8: Intake duct 9: Exhaust duct

Claims

1. A carbonization apparatus for continuously drying and carbonizing organic resources, The carbonization device is (a) Two or more furnaces; and (b) an exhaust gas treatment device; The furnace includes a removable upper lid, an inner basket, and a base portion; are connected to each other via the exhaust gas treatment device so as to be able to ventilate, By attaching and detaching the upper lid, the process can be switched between the drying process and the carbonization process of organic resources. The carbonization device.

2. The carbonization apparatus according to claim 1 , wherein the furnace and the exhaust gas treatment device are connected to each other in a manner that allows ventilation by an intake duct and an exhaust gas discharge duct provided in a base portion of the furnace.

3. The exhaust gas treatment device comprises: The exhaust gas generated in a furnace performing a carbonization process of organic resources is taken into the exhaust gas treatment device, The exhaust gas is combusted in the exhaust gas treatment device, The exhaust gas from the combustion is discharged into a furnace where the organic materials are dried. The carbonization device according to claim 1 .

4. The carbonization apparatus according to claim 3, wherein the exhaust gas treatment device burns the exhaust gas at a temperature of 300°C to 1000°C.

5. The carbonization apparatus according to claim 1 , wherein the organic resources include woody or grassy materials, and are virgin, waste-derived, or a mixture thereof.

6. A method for producing organic resource coal, The manufacturing method includes: (a) a carbonization step of carbonizing organic materials in a furnace; (b) an exhaust gas treatment step in which the exhaust gas generated in step (a) is treated in the exhaust gas treatment device; and (c) a drying step of drying the organic material in a furnace different from the furnace used in the step (a) using the exhaust gas treated in the step (b); This method for producing organic resource carbonization involves switching between furnaces for the drying process and the carbonization process by attaching and detaching the top lid of the furnace, thereby continuously carbonizing organic resources.

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