JP2013036630A - Garbage disposal apparatus and disposal method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a disposal apparatus which is small-sized and highly efficient, and is capable of incinerating garbage of ununiform moisture contents and combustion speeds and recycling obtained ash.SOLUTION: A garbage disposal apparatus 1 includes a drying part 20 for drying collected garbage, a combustion device 6 for combusting the garbage dried in the drying part 20, and a heat transfer part 30 for conducting combustion heat generated in the combustion device 6 to the drying part 20. The drying part 20 is provided around the combustion device 6.

Description

  The present invention relates to a processing apparatus and a processing method for realizing a recycling society that incinerates garbage generated from households and business establishments, and ashes the garbage through incineration to use it as a resource.

  Currently, a lot of garbage is generated in Japan. Garbage is generated not only from households but also from restaurants and business establishments. In recent years, garbage separation has progressed, so that garbage that does not burn and recycled garbage is less mixed, and it is less than landfill containing garbage.

  By sorting in this way, the garbage can easily be incinerated, and is required to be incinerated.

  However, even if it says with garbage in a word, the garbage which generate | occur | produces contains various garbage. Each of the contained garbage has different moisture contents, different ignition temperatures, and different combustion temperatures. Due to such a difference, it is difficult to uniformly and averagely burn the garbage to be incinerated. As described above, since the garbage cannot be burned uniformly and averagely, after all, the garbage which has been burned can only be used for landfill.

  Under such circumstances, techniques for incineration processing of garbage have been proposed (see, for example, Patent Document 1 and Patent Document 2).

JP 2009-183830 A JP 2006-275442 A

  Patent Document 1 discloses a waste treatment system that decomposes waste using microorganisms in order to dispose of waste including garbage in a continuous and efficient manner. Wastes can be treated with high efficiency by decomposition using microorganisms.

  However, since it includes many complex and large-scale elements such as the addition of microorganisms and combustion according to this, a waste treatment system (apparatus) becomes large. In addition, degradation using microorganisms also has a problem that results tend to vary depending on the choice of microorganisms and regional characteristics. For this reason, the waste treatment system disclosed in Patent Document 1 can be installed only in a large waste treatment plant, and there is a problem that it is unsuitable for installation in a small-scale or medium-scale incineration plant for each region. is there.

  Patent Document 2 supplies a fluidizing gas to a drying / pyrolysis chamber filled with a fluidized medium to fluidize the fluidized medium in the drying / pyrolysis chamber and supply a combustible material into the fluidized bed in the drying / pyrolysis chamber. An incinerator is disclosed. From the combustion chamber filled with the fluidized medium, the fluidizing medium is received in the drying / pyrolysis chamber to dry the combustible material, and the dried combustible material and the fluidizing medium in the drying / pyrolysis chamber are supplied to the combustion chamber. A fluidizing gas containing oxygen is supplied to the combustion chamber to fluidize the fluid medium in the combustion chamber, and the supplied combustible material is combusted in the fluidized bed of the combustion chamber. Supply the fluid medium in the combustion chamber to the drying / pyrolysis chamber.

  However, the incinerator disclosed in Patent Document 2 requires various processes such as generation, control, and vaporization of fluidized gas. These processes require very delicate control. For this reason, not only the apparatus becomes large, but also the cost of the operation itself using the incinerator is increased. A high-cost depreciation device will eventually be difficult to introduce, and the efficiency of garbage disposal will not be improved.

  The waste incineration processing apparatus including garbage in the prior art is premised on a large-scale apparatus. For example, it is suitable for use in large factories, but garbage processing is often adopted by local governments, etc., and large and expensive devices are difficult to adopt in local governments. Local governments have a desire to dispose of collected garbage at small or medium-sized regional bases, and are seeking a compact and highly efficient incinerator that is not found in the prior art.

  In view of the above problems, the present invention provides a processing apparatus that is small and highly efficient, incinerates garbage with a non-uniform moisture content and combustion rate, and can use the resulting ash for recycling. The purpose is to do.

  The garbage processing apparatus of the present invention includes a drying unit that dries the collected garbage, a combustion device that burns the garbage dried in the drying unit, and the combustion heat generated in the combustion device is conducted to the drying unit. And a drying section is provided around the combustion device.

  The garbage processing apparatus of the present invention burns garbage having a non-uniform water content after first dehydrating and drying it, so that the garbage can be uniformly burned. By being able to burn evenly, the garbage is burned completely.

  In particular, since the combustion heat in the combustion apparatus can be used for dewatering / drying garbage, the entire treatment apparatus does not become large. Of course, since the thermal efficiency is also increased, the processing time and processing cost of garbage can be proposed.

  The treatment apparatus can turn burned garbage into ash, and this ash does not contain impurities such as unburned matter, so it can be used as fertilizer. For this reason, the processing apparatus can implement | achieve recycling of garbage.

It is a schematic diagram of the recycling system in Embodiment 1 of this invention. It is a perspective view of the processing apparatus in Embodiment 1 of this invention. It is a schematic diagram of the controller in Embodiment 1 of this invention. 1 is a side view of a combustion apparatus in Embodiment 1. FIG. It is a side view of the combustion apparatus actually manufactured in Embodiment 1 of this invention. It is a perspective view of the combustion apparatus in Embodiment 2 of this invention. It is a flowchart of the processing method of the garbage in Embodiment 3 of this invention.

  A garbage processing apparatus according to a first aspect of the present invention includes a drying unit that dries collected garbage, a combustion device that burns the garbage dried in the drying unit, and combustion heat generated in the combustion device. And a heat transfer section that conducts the heat to the drying section, and the drying section is provided around the combustion device.

  With this configuration, the treatment apparatus reliably and efficiently burns garbage with different combustion temperatures and moisture contents.

  In the garbage processing apparatus according to the second aspect of the present invention, in addition to the first invention, the combustion apparatus incinerates the garbage.

  With this configuration, the processing apparatus can turn garbage into inorganic waste, and therefore does not require landfill.

  In the garbage processing apparatus according to the third aspect of the present invention, in addition to the first or second aspect, the combustion apparatus performs initial combustion using a predetermined fuel, and the heat transfer section is obtained by initial combustion. Heat is transferred to the drying section.

  With this configuration, the processing apparatus can dry garbage.

  In the garbage processing apparatus according to the fourth aspect of the present invention, in addition to the third invention, after the initial combustion, the garbage dried in the drying section is supplied to the combustion apparatus.

  With this configuration, the combustion apparatus can burn dry garbage without using excess fuel.

  In the garbage processing apparatus according to the fifth aspect of the present invention, in addition to any of the first to fourth aspects of the invention, the combustion apparatus has a double structure of an outer cylinder and an inner cylinder that can rotate coaxially. Air is supplied to the inner cylinder and the internal space of the combustion cylinder by using a main body cylinder, a combustion cylinder that is connected to the tip of the cylinder, and burns the combustion agent, and a gap between the outer cylinder and the inner cylinder. The main body cylinder and the combustion cylinder have an upward inclination with respect to the horizontal plane, and the ventilation path provides 30% to 50% of the total amount of air that can be supplied to the internal space of the inner cylinder. 50% to 70% of the total amount of air that can be supplied can be supplied to the internal space of the combustion cylinder.

  With this configuration, the combustion device can reliably and efficiently burn dry garbage. In particular, it can be completely burned until it becomes inorganic waste.

  In the garbage processing apparatus according to the sixth aspect of the present invention, in addition to the fifth aspect, the drying section is provided on the outer periphery of at least a part of the outer cylinder and the combustion cylinder.

  With this configuration, the drying section can make maximum use of the combustion heat.

  In the garbage processing apparatus according to the seventh aspect of the present invention, in addition to any one of the first to sixth inventions, the drying unit maintains a combustion temperature of 60 ° C. to 90 ° C. dry.

  In the garbage processing apparatus according to the eighth aspect of the present invention, in addition to any of the first to seventh inventions, the drying section treats the garbage so that the moisture content is 10% to 15%. dry.

  With these configurations, the drying unit can make garbage look like a dry state that facilitates combustion in the combustion device.

  In the garbage processing apparatus according to the ninth aspect of the present invention, in addition to any of the fifth to eighth inventions, a crushing member for crushing the garbage is accommodated in the internal space of the inner cylinder.

  In the garbage processing apparatus according to the tenth invention of the present invention, in addition to the ninth invention, the crushing member includes a substantially spherical ceramic ball mainly composed of alumina oxide and having a particle diameter of 2 to 30 mm. .

  With this configuration, the combustion apparatus can burn dry garbage more efficiently and reliably.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  (Embodiment 1)

  First, an overall outline of recycling centering on garbage processing equipment will be described.

(Overview)
FIG. 1 is a schematic diagram of a recycling system according to Embodiment 1 of the present invention. A recycling system 1 shown in FIG. 1 is a system centered on a garbage disposal device 2. The garbage disposal apparatus 2 is installed in a treatment facility 5 provided in a local government, an area, a business place, or the like. The processing facility 5 may be simply provided in a building or site owned by the local government or the region, not a large facility or region. Or the processing facility 5 should just be installed in the one part area | region of a business place.

  Garbage (including garbage collected as burning garbage, etc.) from households 4 and business establishments 5. In other words, not only garbage generated in the process of household chores but also all incinerated burning garbage such as paper and wood waste ) Is recovered. The collection may be carried out by garbage collection that is currently performed. The collected garbage is collected in a collection place 3 provided in the treatment facility 5. The treatment device 2 performs combustion treatment on the garbage collected in the collection place 3. That is, the garbage collected in the collection place 3 is supplied to the processing device 2 and subjected to combustion treatment.

  The processing apparatus 2 supplies the ash generated after the combustion treatment as a recycled material for fertilizer and soil improvement material. As will be described later, the processing apparatus 2 can burn and ash raw garbage completely, so that the discharged ash does not contain extra components and is easily used as a fertilizer or a soil conditioner. By using ash, there is no need to landfill the effluent after incineration.

  At this time, a business operator or a local government that operates the processing facility 5 may distribute ash as a recycled material. For example, ash is provided and sold as a fertilizer to farmers, and ash is provided and sold as a soil conditioner to construction companies through trading companies.

  As described above, the recycling system shown in FIG. 1 can completely recycle the garbage discharged from the home 4 and the business establishment 5 that conventionally required the incineration process and the landfill process. As a result, a recycling society can be realized.

  Next, an outline of the garbage processing apparatus 2 will be described.

(Processing equipment)
FIG. 2 is a perspective view of the processing apparatus according to Embodiment 1 of the present invention. The processing device 2 includes a drying unit 20, a combustion device 6, and a heat transfer unit 30. The drying unit 20 dries the collected garbage. The combustion device 6 burns dried garbage (hereinafter referred to as “dried garbage”). The heat transfer unit 30 conducts combustion heat generated in the combustion device 6 to the drying unit 20.

  The drying unit 20 contains the garbage supplied from the collection place 3 therein. The drying unit 20 dries the accommodated garbage to generate dry garbage that becomes fuel in the combustion device 6.

  The processing device 2 first supplies a predetermined fuel as an initial fuel to the combustion device 6 to cause the combustion device 6 to perform initial combustion. The predetermined fuel is a liquefied fuel, a dry fuel, a gas fuel, or the like. The combustion apparatus 6 raises the temperature by this initial combustion with the initial fuel.

  The drying unit 20 is provided around the combustion device 6. In FIG. 2, a drying unit 20 is provided on the outer periphery of at least a part of the outer cylinder 10 and the combustion cylinder 13 provided in the combustion device 6. When the temperature of the combustion device 6 increases due to the initial combustion, the temperatures of the outer cylinder 10 and the combustion cylinder 13 also increase. The outer periphery of the outer cylinder 10 and the combustion cylinder 13 has a role of the heat transfer unit 30, and conducts heat of the outer cylinder 10 and the combustion cylinder 13 to the drying unit 20. With this conducted heat, the drying unit 20 dries the housed garbage to generate dry food waste.

  The dried garbage inside the drying unit 20 is taken out manually or automatically, and the dried garbage is supplied from the supply unit 15 into the combustion device 6. Since dry garbage is dehydrated and dried, it is suitable as a fuel in the combustion device 6. Due to dehydration and drying, there is little variation in water content depending on the type of garbage. For this reason, the combustion apparatus 6 can burn the supplied dry garbage uniformly. Uniform combustion makes it possible to generate ash with less impurities and non-uniformity after combustion. As described above, since this ash has few impurities and nonuniformity, it can be easily used as a recycled material. Of course, since there are very few unburned residues and impurities, it is not necessary to landfill the burned material.

  Further, while the combustion device 6 is burning dry garbage as fuel, the temperature of the outer cylinder 10 and the combustion cylinder 13 rises. The heat transfer unit 30 conducts heat generated by this temperature rise to the drying unit 20, and the drying unit 20 can dry the garbage to be accommodated. That is, the processing apparatus 2 can perform parallel drying of the garbage which becomes dry garbage next by combustion with dry garbage. The energy generated when the dry garbage is burned is used for the production of dry garbage as a fuel, so that the energy efficiency of the processing device 2 is very high. The drying apparatus 20 and the combustion of the dried garbage obtained by drying with the combustion device 6 proceed in parallel and continuously, so that the processing device 2 efficiently processes many garbage. it can.

  As described above, the treatment device 2 can realize the treatment of garbage and the recycling of the post-treatment materials with only the initial fuel given to the combustion device 6 first, which helps to realize a recycling society.

  Next, the detail of each part is demonstrated.

(Drying part)
The drying unit 20 dries the collected garbage (may pass through the collection station 3 or may be directly supplied from each household). Using the heat generated by the combustion in the combustion device 6, the drying unit 20 dries the food waste to generate dry food waste.

  The drying unit 20 is preferably provided around the combustion device 6. Furthermore, as shown in FIG. 2, it is preferably provided on the outer periphery of at least a part of the outer cylinder 10 and the combustion cylinder 13. The temperature of at least one of the outer cylinder 10 and the combustion cylinder 13 rises due to combustion in the combustion device 6. The outer cylinder 10 and the combustion cylinder 13 have heat due to this temperature rise.

  The drying unit 20 has an internal space, and has an entrance and an exit to the internal space as necessary. The collected garbage is stored in the internal space. The storing of the garbage in the drying unit 20 may be performed manually or automatically. If it is automatically performed, the collected garbage is put into the internal space of the drying unit 20 by a bell and a conveyor.

  In addition, it is sufficient that garbage is introduced into the internal space from the entrance. At this time, the dried garbage obtained by drying may be taken out from an outlet common to the inlet. In this case, there is an advantage that the structure of the drying unit 20 is simplified. On the other hand, it is preferable that the entrance and the exit are different when the garbage is put into the internal space of the drying unit 20 and the dry garbage is taken out from the internal space continuously. The belt conveyor and the drying unit 20 are continuously installed, and it is repeated that raw garbage is supplied to the internal space from the entrance, and the dried raw waste is discharged from the exit.

  The drying unit 20 dries the garbage with heat conducted from the combustion device 6. That is, the drying unit 20 dehydrates and dries the garbage. Since garbage contains various materials having different moisture contents and combustion temperatures, even if it is burned as it is, combustion unevenness occurs and it is difficult to make it ash. Since the drying unit 20 is dehydrated and dried, such a problem does not occur.

  Further, the drying unit 20 dries the garbage using heat conducted from the combustion device 6. At this time, the drying part 20 maintains the temperature of 60 degreeC-90 degreeC, and dries garbage. When the temperature is lower than 60 ° C., the garbage is not sufficiently dried. When the temperature is higher than 90 ° C., the food waste is excessively dried or ignited, so that appropriate dehydration and drying cannot be performed.

  Moreover, it is suitable for the drying part 20 to dry a garbage so that the moisture content of the dry garbage obtained by drying may be 10 to 15%. This is because when the moisture content of the dry garbage is less than 10%, the drying progresses excessively and may cause incomplete combustion in combustion. On the other hand, when the moisture content of the dry garbage is greater than 15%, the dry garbage becomes difficult to burn. For this reason, it is suitable for the drying part 20 to dry garbage so that the moisture content of dry garbage may be 10 to 15%.

  Note that the moisture content at which the drying unit 20 dries the garbage can vary depending on the regional characteristics and the specifications of the business operator operating the treatment facility 5. For this reason, the values of 10% to 15% are a guide and are not intended to exclude other moisture contents.

  It is also preferable that the drying unit 20 has a measurement unit and a display unit that indicate that the target moisture content has been reached when the garbage is dehydrated and dried. For example, a humidity sensor provided in the drying unit 20 is used as the measurement unit. By providing a correlation between the value of the humidity sensor and the moisture content of the garbage in advance, the measurement unit can identify the moisture content of the garbage.

  Moreover, it is also suitable that the display part which displays a moisture content is provided according to the controller which operates the processing apparatus 2. FIG. FIG. 3 is a schematic diagram of the controller according to Embodiment 1 of the present invention. The controller 21 is used by a user when executing processing in the processing device 2. The user controls the drying unit 20 and the combustion device 6 using the controller 21.

  The controller 21 includes a screen 22, an operation button 23, and the like, and the user operates the processing device 2 while confirming display contents displayed on the screen 22. On this screen 22, the moisture content of the garbage dried in the drying unit 20 is displayed. After confirming the moisture content displayed on the screen 22, the user performs an operation of taking out (discharging) the dry garbage from the drying unit 20.

  The screen 22 displays not only the moisture content of the garbage but also various information such as the amount of garbage and the working time. Of course, work items and help information necessary for the user are also displayed as necessary.

  As described above, the drying unit 20 dries the garbage and facilitates uniform combustion in the combustion device 6. As a result, an efficient incineration process of garbage by the combustion device 6 and a complete incineration process are possible, and ashing can be realized.

  In addition, since the drying part 20 receives the heat which the combustion apparatus 6 generate | occur | produces and dries garbage, it is preferable that the drying part 20 is provided in the circumference | surroundings of the combustion apparatus 6. FIG. The surrounding includes not only a physical outer periphery but also a region where the heat of the combustion device 6 can be conducted.

  Moreover, it is also suitable for the drying part 20 to collect | recover the heat which the combustion apparatus 6 discharge | releases outside, and to use the collect | recovered heat for drying garbage. The combustion device 6 discharges to the outside in accordance with combustion. For example, a circulation path is provided outside the combustion device 6, and this circulation path induces heat to the drying unit 20. That is, this circulation path serves as the heat transfer section 30. Alternatively, the heat released to the outside instead of the circulation path may be collected with a bag or the like and supplied to the drying unit 20.

  In addition, it is also preferable that the drying unit 20 is provided with a conveyor that automatically conveys garbage. The conveyor automatically conveys garbage to the drying unit 20 and reduces the labor involved in drying the garbage. Moreover, when this conveyor itself has a drying function and it is conveyed to the processing apparatus 1 by a drying function, garbage may already be in a dry state. In this case, the conveyor functions as the drying unit 20.

  Furthermore, a pulverization processing unit for pulverizing the garbage may be provided before being transported to the drying unit 20. It is because efficient and easy combustion is possible by drying and burning after being pulverized.

(Heat transfer part)
The heat transfer unit 30 conducts heat generated by the combustion device 6 to the drying unit 20. For example, as shown in FIG. 2, when the drying unit 20 is provided on the outer periphery of at least a part of the outer cylinder 10 and the combustion cylinder 13 of the combustion device 6, the outer peripheral members of the outer cylinder 10 and the combustion cylinder 13 are transmitted. It becomes the heat part 30.

  When the drying unit 20 is provided at a position away from the combustion device 6, the heat transfer unit 30 includes a metal member that conducts combustion heat to the drying unit 20. Or the heat-transfer part 30 is provided with the ventilation mechanism which sends the air which has heat. With these structures, the heat transfer unit 30 conveys the heat generated in the combustion device 6 to the drying unit 20. The combustion device 6 includes a blower pipe, and the blower pipe conducts (propagates) heat generated in the combustion device 6 to the drying unit 20.

  Since the heat transfer unit 30 conducts heat generated by the combustion device 6, it is preferable that the heat transfer unit 30 be made of a material having high thermal conductivity. Metals, alloys, etc. are listed as candidates for this material. For example, copper or aluminum has high thermal conductivity and is suitable as a material for the heat transfer section 30. Of course, when the outer periphery of the cylindrical body of the combustion apparatus 6 is the heat transfer section 30, durability and heat resistance required for the combustion apparatus 6 are also required, so that the corresponding material is the heat transfer section 30. May be configured.

  In this way, the heat transfer unit 30 conducts the heat generated in the combustion device 6 to the drying unit 20 using various means and configurations. Upon receiving heat conduction by the heat transfer unit 30, the drying unit 20 dries the garbage.

(Combustion device)
Next, the combustion apparatus will be described. FIG. 4 is a side view of the combustion apparatus in the first embodiment. FIG. 4 shows the drying unit 20 and the combustion device 6 together. The combustion apparatus 6 is a dry garbage obtained by drying in the drying unit 20 (as already described, a garbage which has been dried in the drying unit 20. It does not include only the garbage in a narrow sense, but from home and business. Combusting waste (including a wide range of general waste). By this combustion, the dry garbage is completely burned and ashed. Since the combustion apparatus 6 does not cause burning unevenness of dry garbage, the ash obtained by ashing does not generate unburned residue that can be an excess organic matter. For this reason, the obtained ash can be suitably used as a fertilizer, a soil improvement material, or the like.

  The combustion device 2 includes a main body cylinder 12 and a combustion cylinder 13 as large components. The main body cylinder 12 performs primary combustion, and the combustion cylinder 13 performs secondary combustion. Since the primary combustion and the secondary combustion can be performed by the integrated combustion device 6, dry garbage can be reliably combusted. In particular, the high temperature can always be maintained because the integrated combustion device 6 can perform the primary combustion and the secondary combustion.

  The main body cylinder 12 includes an outer cylinder 10 and an inner cylinder 11, and the outer cylinder 10 and the inner cylinder 11 have a double structure that can rotate coaxially. That is, the outer cylinder 10 covers the periphery of the inner cylinder 11, and the outer cylinder 10 and the inner cylinder 11 rotate together on the same axis (of course, they may rotate individually). Due to this double structure, a gap is formed between the outer cylinder 10 and the inner cylinder 11. This gap serves as a ventilation path 14 for supplying air to the internal space of the inner cylinder 11 and the combustion cylinder 13.

  A broken-line arrow in FIG. 4 indicates an air supply path. Air passing through the ventilation path 14 is taken in from an opening at the base of the outer cylinder 10.

  The outer cylinder 10 and the inner cylinder 11 have an open end that is open and a closed end that is closed. A combustion cylinder 13 is connected to the open end, and the combustion agent that has undergone primary combustion inside the inner cylinder 11 is further heated to perform secondary combustion in the internal space of the combustion cylinder 13.

  A part of the outer periphery of the inner cylinder 11 has a notch, and the ventilation path 14 feeds air into the inner cylinder 11 through the notch. In addition, since the combustion cylinder 13 is connected to the outer cylinder 10, the tip of the ventilation path 14, which is a gap generated by the double structure of the inner cylinder 11 and the outer cylinder 10, is connected to the root of the combustion cylinder 13. That is, air is sent as it is into the internal space of the combustion cylinder 13 from the open portion at the tip of the ventilation path 14.

  In this way, the air passage 14 sends air into each of the internal space of the inner cylinder 11 and the internal space of the combustion cylinder 13.

  At this time, the ventilation path 14 supplies 30% to 50% of the total amount of air that is taken in and can be supplied to the internal space of the inner cylinder 11, and burns 50% to 70% of the total amount of air. Supply to the internal space of the tube 13. As described above, since the amount of air supplied to the combustion cylinder 13 performing the secondary combustion is larger than the amount of air supplied to the inner cylinder 11 performing the primary combustion, the combustion power of the secondary combustion subsequent to the primary combustion is increased. Increasingly, the combustion device 6 can burn dry garbage while always maintaining a high temperature (900 ° C. or higher). That is, the internal space of the inner cylinder 11 that performs primary combustion performs combustion up to a constant temperature by supplying air that is half or less of the total supply amount. As the temperature rises and the mass of the combustion agent 20 becomes lighter as the ashing of the combustion agent 20 progresses, the combustion agent 20 and the flame rise to the combustion cylinder 13 physically located above. Since the inner space of the combustion cylinder 11 is supplied with a larger amount of air than the inner cylinder 11, the combustion agent is burned at a temperature higher than the combustion temperature in the inner cylinder 11. As a result, dry garbage is surely ashed to inorganic waste.

  Here, since the main body cylinder 12 and the combustion cylinder 13 have an upward inclination with respect to the horizontal plane, it is easy to be physically connected from the primary combustion in the inner cylinder 11 to the secondary combustion in the combustion cylinder 13. As the temperature rises, the combustion object rises upward, but since there is a combustion cylinder 13 above, the dry garbage is burned to a higher temperature in this combustion cylinder 13.

  The dried garbage is supplied to the internal space of the inner cylinder 11 through the supply path 15.

  By using the combustion device 6 having such a structure, the combustion means 5 can reliably burn dry trash and ash it to convert organic waste into inorganic waste. Further, in combustion, dry garbage is burned while maintaining a high temperature of 900 ° C. or higher, so there is almost no toxic gas or scattered matter.

(Example of combustion apparatus)
FIG. 5 is a side view of the actually manufactured combustion apparatus according to Embodiment 1 of the present invention.

  The combustion device 6 is open at the front and closed at the rear. The amount of heat burned in the front of the opening is dissipated, and dry garbage and air are taken in in the rear of the opening.

  The main body cylinder 29 includes an outer cylinder 32 and an inner cylinder 33 that can be rotated coaxially, and has a double structure in which the outer cylinder 32 covers the periphery of the inner cylinder 33 with a certain gap. Since the main body cylinder 29 is rotatable, the inner cylinder 33 is rotated. By this rotation, the internal space of the inner cylinder 33 can also be rotated. By rotating, the dry garbage stored in the internal space of the inner cylinder 33 can rotate while burning, so that air and flame can be uniformly contacted with the dry garbage, and primary combustion in the inner cylinder 33 is promoted.

  A combustion cylinder 35, which is the same cylinder, is connected to the opening of the main body cylinder 29. Since the combustion cylinder 35 is connected in a state of being connected to the outer cylinder 32, one end of the gap generated between the inner cylinder 33 and the outer cylinder 32 is connected to the internal space of the combustion cylinder 35 as it is. The combustion cylinder 35 captures the physical increase of the combustant after the primary combustion due to the mass decrease and the temperature increase, and burns the dry garbage at a higher temperature.

  Here, the main body cylinder 29 and the combustion cylinder 35 have an upward inclination with respect to the horizontal plane. Here, upward refers to a state in which the opening of the combustion cylinder 35 faces upward.

  By having such an inclination, the dry garbage burned at a predetermined temperature in the inner space of the inner cylinder 33 is reduced in mass, and thus easily moves upward. Since the combustion cylinder 35 is located above, the combustion cylinder 35 burns the dry garbage which has moved. That is, secondary combustion is performed.

  Here, a gap between the outer cylinder 32 and the inner cylinder 33 becomes a ventilation path 37. The ventilation path 37 supplies the air taken in from the air supply port 45 to the internal space of the inner cylinder 33 and the internal space of the combustion cylinder 35. Here, the supply port 45 is connected to the outside world, takes air from the outside world, and sends the air to the ventilation path 37 via the ventilation port 38. The ventilation path 37 moves the supplied air, supplies a part thereof to the internal space of the inner cylinder 33, and supplies the rest to the internal space of the combustion cylinder 35.

  The inner cylinder 33 includes a blowout port 40 on the outer periphery thereof. Since the blowing port 40 communicates with the ventilation path 37, the air passing through the ventilation path 37 leaks from the blowing port 40 and is sent into the internal space of the inner cylinder 33. That is, the ventilation path 37 supplies air to the internal space of the inner cylinder 33 through the outlet 40.

  On the other hand, the tip of the ventilation path 37 is directly connected to the combustion cylinder 35. For this reason, the ventilation path 37 supplies air to the internal space of the combustion cylinder 35 from the tip. The ventilation path 37 supplies 30% to 50% of the total amount of air that can be taken in from the outside (that is, can be supplied to the combustion device 6) to the internal space of the inner cylinder 33. On the other hand, the ventilation path 37 supplies 50 to 70% of the total air amount to the internal space of the combustion cylinder 35. That is, the amount of air supplied to the combustion cylinder 35 is larger than the amount of air supplied to the inner cylinder 33. As a result, the amount of air supplied to the combustion cylinder 35 that performs secondary combustion that needs to be combusted at a higher temperature increases, and secondary combustion is optimally performed.

  The ratio of the supply amount to the inner cylinder 33 and the supply amount to the combustion cylinder 35 by the ventilation path 37 can be adjusted as appropriate by adjusting the position, number, opening area, shape, angle, and the like of the outlet 40. . For example, in the comparison of the total opening area of the outlet 40 and the total opening area where the ventilation path 37 and the combustion cylinder 35 are connected, if the latter is made larger than the former, the amount of air supplied to the internal space of the inner cylinder 33 Rather, the amount of air supplied to the internal space of the combustion cylinder 35 can be adjusted to be larger.

  Combustion device 6 is supplied with 30 to 50% of the total amount of air and is supplied with 50% to 70% of the total amount of air following the primary combustion in inner cylinder 33 physically located below and the primary combustion. In addition, the dry garbage is reliably burned by the continuity with the secondary combustion of the combustion cylinder 35 physically located above the inner cylinder 33. With this reliable combustion, the organic waste is completely ashed and converted into inorganic waste.

(Operation of combustion device)
Next, the operation of the combustion device 6 will be described.
Dry garbage is put into the supply path 46. The combustion agent may be charged manually or by a machine. Here, the dried garbage may be put in a state of being dried in the drying unit 20, may be put in a state of being cut into a certain size, or formed into a pellet shape. It may be thrown in.

  The dried garbage thrown into the supply path 46 is carried on the blades of the rotating screw conveyor 47. The transported dry garbage is carried into the inner space of the inner cylinder 33. The internal space of the inner cylinder 33 is ignited by an ignition device or the like.

  The supply port 45 is connected to the outside world, and the supply port 45 takes in air from the outside world. The taken-in air is sent to the ventilation path 37 through the ventilation opening 38. The ventilation path 37 supplies air to the internal space of the inner cylinder 33 through the outlet 40. At this time, the ventilation path 37 supplies 30% to 50% of the total air amount to the inner cylinder 33 depending on the ratio of the total opening area of the outlet 40 and the opening area where the ventilation path 37 and the combustion cylinder 35 are connected. .

  The inner cylinder 33 burns dry garbage with the supplied dry garbage and air. By rotating the inner cylinder 33, the dried garbage can be uniformly contacted with air, and the dried garbage is reliably burned. Moreover, since it is combustion by the air with less than half of the amount of air, it burns up to a certain temperature.

  The dry garbage burned in the inner space of the inner cylinder 33 increases in temperature and lightens in mass. For this reason, it can move upward gradually.

  On the upper side, a combustion cylinder 35 is provided, and more than half of the total air amount is supplied to the combustion cylinder 35. With this larger amount of air, the combustion cylinder 35 burns dry garbage at a higher temperature. This is secondary combustion. When the dried garbage is burned at a higher temperature, the dried garbage is surely incinerated, and the organic components are eliminated and inorganic waste is obtained. Here, the combustion apparatus 6 can burn dry garbage while maintaining a temperature of 900 ° C. or higher. The ash can be used as a fertilizer or a soil conditioner by converting it into an ash that is an inorganic waste.

  As described above, the combustion device 6 can reliably burn and ash dry garbage obtained by drying in the drying unit 20. At this time, combined with the fact that the garbage is dried in the drying unit 20 and the special structure capable of performing the primary combustion and the secondary combustion of the combustion device 6, the dry raw material containing various substances such as moisture content and combustion temperature. The processing apparatus 2 can sufficiently burn the garbage to obtain ash that becomes a recycled material.

  Since the inorganic waste as ash is obtained by burning organic waste containing livestock manure as a component, it contains useful components for fertilizer and water quality modifier such as phosphorus component and potassium component. These can be suitably used for fertilizers, soil conditioners, water quality modifiers, and the like. That is, the processing apparatus 2 can be a core technology for realizing recycling.

  (Embodiment 2)

  Next, a second embodiment will be described.

  The processing device 2 in the second embodiment includes the combustion device 6 as in the first embodiment, but the combustion device 6 used in the second embodiment crushes the combustion agent in the internal space of the inner cylinder 33. The member is stored.

  FIG. 6 is a perspective view of the combustion apparatus according to Embodiment 2 of the present invention. FIG. 6 shows the combustion device 6 so that the inside thereof can be seen. Unlike the combustion device 6 shown in FIG. 5, the crushing member B is accommodated in the internal space of the inner cylinder 33. Note that description of the same reference numerals as those in FIG. 5 is omitted.

  The dried garbage A is fed from the supply path 46. In FIG. 6, the dry garbage A is formed in a pellet form. Of course, it does not have to be formed into a pellet. The combustion apparatus 6 normally burns dry garbage A having a pellet shape while maintaining a predetermined shape. However, the more crushed and burned than the predetermined shape, the easier the combustion and the better the progress of the ash combustion.

  In such a case, it may be better to combust the dried garbage A after crushing it, rather than the combustion device 6 combusting with the predetermined shape being charged. In such a case, the crushing member B crushes the dry garbage A.

  The crushing member B preferably has various shapes such as a spherical shape, an elliptical spherical shape, and a rectangular shape, and is preferably a heat-resistant material. For example, the crushing member B is a substantially spherical ceramic ball mainly composed of alumina oxide and having a particle size of 2 to 30 mm. Such a crushing member B crushes the dry garbage A by colliding with the dry garbage A in the internal space of the inner cylinder 33. The dried garbage A is crushed and crushed by the crushing member B. In particular, since the inner cylinder 33 can be rotated together with the outer cylinder 32, the crushing member B repeatedly collides with the dry garbage A according to this rotation. By repeating this collision, the crushing member B finely crushes the dry garbage A. When the dry garbage A is crushed finely, its surface area increases and it becomes easy to burn. As a result, the dry garbage A burns more easily and a large amount of heat is obtained. Furthermore, ashing proceeds by combustion, and an inorganic waste in which organic components have almost disappeared can be obtained.

  As described above, it is also preferable for the combustion device 6 to house the crushing member B as necessary. The combustion device 6 preferably has various devices for promoting combustion, including a crushing member.

  (Embodiment 3)

  Next, Embodiment 3 will be described.

  In the third embodiment, a processing procedure using the processing device 2 will be described. FIG. 7 is a flowchart of the garbage processing method according to Embodiment 3 of the present invention.

  First, garbage is collected. Garbage includes a wide range of so-called general waste. In the initial combustion step of step ST1, the combustion device 6 included in the processing device 2 is initially burned. In the initial combustion, fuel for initial combustion of the combustion device 6 such as fossil fuel and combustion gas is given.

  During this initial combustion, the garbage is put into the drying unit 20 and dried. This is the first drying process performed in step ST2. By this first drying step, the garbage is dried by combustion with fuel. The dry garbage generated by the first drying process is input to the combustion device 6 by the input process of step ST3.

  Next, the input dry garbage is combusted by the combustion process of step ST4. In this combustion process, the combustion apparatus 6 described in the first and second embodiments is used to efficiently and completely burn dry garbage. In parallel with the combustion process ST4, the drying unit 20 dries the next garbage by the normal drying process of step ST5. That is, the garbage is dried one after another by the heat in the combustion process. Since the dry garbage obtained in the drying process becomes fuel for the combustion device 6, newly generated dry garbage is input to the combustion device 6 in the next step ST6.

  If thrown in, this dry garbage will be burned by the combustion process of step ST4. By this combustion, garbage is incinerated, and ash which is an inorganic waste is obtained. This ash is used as a fertilizer and soil conditioner. Of course, other processes may be added, or any process may be omitted depending on the situation.

  The garbage disposal apparatus 2 is used by such a garbage disposal method and can be a core technology of a recycling society.

  By recycling such waste, the awareness of recycling is increased, and the cost and profit are balanced for the recycling company, so that there is an advantage of entering recycling. As described above, there is an advantage that recycling is easy to be established by a recycling method that is beneficial to both the beneficiary and the provider.

  Of course, garbage disposal does not require landfilling and the like, and it is easy to build a recycling society that should be.

  As mentioned above, the garbage processing apparatus and the processing method described in the first to third embodiments are examples for explaining the gist of the present invention, and include modifications and alterations without departing from the gist of the present invention.

DESCRIPTION OF SYMBOLS 1 Recycle system 2 Processing apparatus 3 Collection place 4 Household 5 Work place 6 Combustion apparatus 12 Main body cylinder 13 Combustion cylinder 14 Ventilation path 29 Main body cylinder 32 Outer cylinder 33 Inner cylinder 34 Pipe line 35 Combustion cylinder 37 Ventilation path 38 Ventilation opening 39 Frame member 40 Outlet 41 Support 42 Bearing 45 Supply Port

Claims (11)

A drying section for drying the collected garbage;
A combustion apparatus for burning the garbage dried in the drying section;
A heat transfer section that conducts combustion heat generated in the combustion device to the drying section,
The drying unit is a garbage disposal device provided around the combustion device.   The garbage processing apparatus according to claim 1, wherein the combustion apparatus ashes the garbage.   The garbage processing apparatus according to claim 1 or 2, wherein the combustion device performs initial combustion using a predetermined fuel, and the heat transfer unit conducts heat obtained by the initial combustion to a drying unit.   The garbage processing apparatus according to claim 3, wherein the garbage dried in the drying unit is supplied to the combustion apparatus after the initial combustion. The combustion device comprises:
A main body cylinder having a double structure of an outer cylinder and an inner cylinder that are coaxially rotatable;
A combustion cylinder that is connected to the tip of the cylinder and burns the combustion agent;
A ventilation path for supplying air to the inner space of the inner cylinder and the combustion cylinder using a gap between the outer cylinder and the inner cylinder;
The main body cylinder and the combustion cylinder have an upward inclination with respect to a horizontal plane,
The ventilation path supplies 30% to 50% of the total amount of air that can be supplied to the inner space of the inner cylinder, and 50% to 70% of the total amount of air that can be supplied to the inner space of the combustion cylinder. The garbage processing apparatus according to any one of claims 1 to 4, which is supplied.   The garbage processing apparatus according to claim 5, wherein the drying section is provided on an outer periphery of at least a part of the outer cylinder and the combustion cylinder.   The garbage processing apparatus according to any one of claims 1 to 6, wherein the drying unit maintains a combustion temperature of 60C to 90C and dries the garbage.   The garbage processing apparatus according to any one of claims 1 to 7, wherein the drying unit dries the garbage so that the moisture content is 10% to 15%.   The garbage processing apparatus according to any one of claims 5 to 8, wherein a crushing member for crushing the garbage is stored in an internal space of the inner cylinder.   The garbage processing apparatus according to claim 9, wherein the crushing member includes a substantially spherical ceramic ball mainly composed of alumina oxide and having a particle diameter of 2 to 30 mm. A drying section for drying the collected garbage;
A combustion apparatus for burning the garbage dried in the drying section;
A method for treating garbage using a treatment device comprising: a heat transfer unit that conducts combustion heat generated in the combustion device to the drying unit;
Initial combustion is supplied to the combustion device and initial combustion generates initial combustion heat, and the drying unit dries the garbage to be stored,
A method for treating garbage, wherein the garbage dried in the drying unit is supplied to the combustion device, and the combustion device burns and ashes the supplied garbage.

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