JP2012005374A - Roasting device and power generating system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To roast raw materials such as seeds by effectively using waste heat from a power engine.SOLUTION: The power generating system 1 uses the power engine including: a roasting device 11 for roasting raw materials; an oil extracting device 21 for extracting a fuel from the roasted raw materials; a diesel engine 62 for obtaining the power by combusting the extracted fuel; and a power generator 69 for generating the electricity with the power of the diesel engine 62. The roasting device 11 roasts the raw materials by heating the raw materials with the waste heat of the diesel engine 62, and includes an exhaust distribution part 111 for distributing the exhaust discharged from the diesel engine 62 therein and a raw material holding part 112 for holding the raw materials for the heat-exchange with the exhaust.

Description

  The present invention relates to a roasting apparatus and a power generation system, and more particularly to a technique for roasting raw materials such as seeds by effectively using exhaust heat of a power engine.

  In recent years, as an environmental measure, attempts have been made to use plant-derived liquid fuel (vegetable oil) such as jatropha instead of fossil fuel for a combustion system in a power plant. Here, in order to obtain the vegetable oil used as bio-oil fuel or the like from raw materials such as seeds, it is necessary to go through purification steps such as roasting (drying), oil extraction, and filtration (see, for example, Patent Document 1).

JP 2010-13511 A

During roasting in the above purification process, it is necessary to secure an external heat source, such as using an electric heater to heat the raw material or burning fossil fuel. There is a problem of causing an increase. Consumption of fossil fuel for refining fuel for power generation is not preferable from the viewpoint of global warming countermeasures (CO ₂ emission reduction, etc.) that have become a problem in recent years.

  The present invention has been made in view of such problems, and provides a roasting apparatus and a power generation system capable of roasting raw materials such as seeds by effectively using exhaust heat of a power engine. For the purpose.

  One aspect of the present invention for achieving the above object is a roasting device for roasting raw materials, an oil expression device for extracting fuel from the roasted raw materials, and power by burning the extracted fuel. It is said roasting apparatus in a power engine configured to include an engine that obtains the above, and roasting is performed by heating the raw material by exhaust heat of the engine.

  In the present invention, since the raw material is roasted by heating the raw material by the exhaust heat of the power engine as described above, roasting can be performed by effectively using the exhaust heat of the power engine. According to this, it is not necessary to secure a heat source for roasting from the outside, the cost required for operation of the power engine can be suppressed, and this contributes to global warming countermeasures.

  Another aspect of the present invention is the roasting apparatus, wherein an exhaust circulation section through which exhaust exhausted from the engine circulates and a raw material holding in which the raw material heat-exchanged with the exhaust is retained. Part. The exhaust circulation part has an exhaust inlet and the exhaust outlet, and the raw material holding part is made of a flat plate member.

  By making the roasting apparatus such a structure, the heat of the exhaust can be efficiently transmitted to the raw material, and the roasting can be performed by efficiently using the exhaust heat of the power engine.

  Another aspect of the present invention is the above roasting apparatus, which is arranged above the flat plate member and spaced apart from the flat plate member so that the plane thereof is parallel to the flat surface of the flat plate member. Suppose that it has the plate-shaped shelf board made.

  By doing in this way, a lot of raw materials can be roasted at once. In addition, a roasting method can be selected according to the properties of the raw material.

  Another aspect of the present invention is the roasting apparatus, wherein the exhaust circulation part has the exhaust inlet at the lower part and the exhaust outlet at the upper part, and the raw material holding part Is a container for containing the raw material so that the raw material is held on the outer periphery of the exhaust circulation part.

  By making the roasting apparatus such a structure, the heat of the exhaust can be efficiently transmitted to the raw material, and the roasting can be performed by efficiently using the exhaust heat of the power engine.

  Another aspect of the present invention is the roasting apparatus, wherein a stirring device for stirring the raw material held by the raw material holding unit is provided.

  In this way, the entire raw material is heated evenly, and the raw material can be roasted evenly.

  Another aspect of the present invention is a roasting device for roasting raw materials, an oil expression device for extracting fuel from the roasted raw materials, an engine for obtaining power by burning the extracted fuel, A power generation system using a power engine including a generator that generates power by the power of the engine, wherein the roasting device performs roasting by heating the raw material by exhaust heat of the engine, An exhaust circulation section through which exhaust exhausted from the engine circulates and a raw material holding section that holds the raw material that exchanges heat with the exhaust are provided.

  According to the present invention, raw heat such as seeds can be roasted effectively using exhaust heat of a power engine, and power generation can be performed efficiently. In addition, it is not necessary to secure a heat source for roasting from the outside, the cost required for operating the power engine can be suppressed, and a power generation system contributing to global warming countermeasures can be realized.

  In addition, the subject which this application discloses, and its solution method are clarified by the column of the form for inventing, and drawing.

  According to the present invention, it is possible to roast raw materials such as seeds by effectively utilizing the exhaust heat of a power engine.

1 is a diagram illustrating a schematic configuration of a power generation system 1. FIG. It is a figure which shows an example of the roasting apparatus. It is a figure which shows an example of the roasting apparatus.

Hereinafter, embodiments will be described in detail with reference to the drawings.
FIG. 1 shows a schematic configuration of a bio-oil power generation system (hereinafter referred to as a power generation system 1) described as an embodiment. As shown in the figure, the power generation system 1 includes a roasting processing unit 10, an oil extraction unit 20, a briquette unit 30, a dephosphorization processing unit 40, a filtration unit 50, and a power generation unit 60.

  The roasting processing unit 10 includes a roasting device 11 for roasting (drying) seeds as a raw material of bio-oil fuel (hereinafter referred to as bio-oil) that is a high-viscosity oil. Seeds that are the raw materials for bio-oil are, for example, Jatropha curcas, Palm, Soy bean, Rapeseed, Sunflower, Coconut, etc. It is not limited. The roasting device 11 roasts seeds using exhaust heat of a diesel engine 62 of the power generation unit 60 described later. A specific configuration of the roasting apparatus 11 will be described later.

  The oil extraction unit 20 includes an oil extraction device 21 that extracts oil from the seed roasted by the roasting processing unit 10, an oil container 22 in which the oil extracted by the oil extraction device 21 is stored, and a residue generated by the oil extraction. Are stored in a residue container 23 and an oil filter 24 for filtering the oil.

  The briquette unit 30 includes a briquette device 31 that generates briquettes (Briquet) from the residue stored in the residue container 23 of the oil extraction unit 20. The briquette generated by the briquette unit 30 is, for example, carried out of the power generation system 1 and used for fuel applications.

  The dephosphorization process part 40 performs the dephosphorization process which removes a phosphorus component from the fuel oil filtered by the oil filter 24 of the oil extraction part 20. By the dephosphorization process, phosphorus components that hinder the operation of the diesel engine 62 described later (deposit generation / deposition, fuel leakage, etc.) are removed.

  The filtration unit 50 includes a pressurizing pump 51 that pressurizes bio-oil generated by dephosphorizing the oil and a filter press 52 that dehydrates / filters the pressurized bio-oil.

  The power generation unit 60 includes a bio-oil storage tank 61 in which bio-oil dehydrated / filtered by the filtration unit 50 is stored, a diesel engine 62 that obtains power by burning light oil or high-viscosity oil, and light oil is stored. A light oil tank 63, a fuel injection system 64 (Fuel Injection System) for injecting light oil or high-viscosity oil into a combustion chamber 621 to be described later, a fuel supply device 65 for supplying fuel to the fuel injection device 64, a light oil tank 63 and a fuel supply device 65, a fuel filter 66 provided between the fuel oil supply tank 65, a bio oil filter 68 provided between the bio oil storage tank 61 and the fuel supply device 65, and a generator 69 that generates power using the power of the diesel engine 62. . In addition, a power engine is comprised by the structure except the generator 69 among the electric power generation parts 60. FIG.

  The bio-oil storage tank 61 is provided with a heating device (not shown) that heats the bio-oil using the heat of the electric heater, steam, or the like in order to reduce the viscosity of the bio-oil.

  The diesel engine 62 includes a combustion chamber 621 including one or more piston / cylinder configurations, an intake manifold 622 (intake manifold) that guides air necessary for combustion to the combustion chamber 621, and an exhaust manifold that discharges exhaust to the outside of the combustion chamber 621. 623 (Exhaust manifold), a supercharger 624 that supplies the intake manifold 622 with compressed external air exhausted from the exhaust manifold 623, and cooling that cools the refrigerant that has absorbed the exhaust heat of the combustion chamber 621 A radiator 625 (Radiator) constituting the mechanism is provided.

  The supercharger 624 is, for example, a turbocharger or a supercharger. Exhaust gas (exhaust gas) discharged from the supercharger 624 is supplied to the roasting device 11.

  The radiator 625 includes, for example, a large number of thin tubes in which a refrigerant to be circulated in a water jacket of the diesel engine 62 flows and a plurality of fins are provided on the outer surface. The refrigerant is, for example, cooling water to which a long life coolant (LLC) or an antifreeze is added. The refrigerant circulates between the radiator 625 and the combustion chamber 621.

  The fuel supply device 65 supplies light oil supplied from the light oil tank 63 during operation of the diesel engine 62 or biooil supplied from the biooil storage tank 61 to the fuel injection device 64. The fuel supply device 65 is configured using, for example, a three-way valve or the like, and selects either light oil or bio-oil and supplies it to the fuel injection device 64. Note that the fuel supply device 65 does not necessarily select only one of light oil or bio-oil, but may mix both at a predetermined ratio and supply them to the fuel injection device 64. Good. In that case, for example, the fuel supply device 65 may include the temperature of the bio oil, the outside air temperature, the light oil remaining amount in the light oil tank 63, the bio oil remaining amount in the bio oil storage tank 61, the outer wall temperature of the combustion chamber 621, The mixing ratio of the light oil and the bio oil is adjusted by performing control using the temperature, the rotational speed of the diesel engine 62, the output of the generator 69, the power consumption of the load using the output of the generator 69, and the like as parameters.

  FIG. 2 shows an example of the roasting device 11. As shown in the figure, the roasting device 11 is provided with a casing 110 having a substantially rectangular parallelepiped shape and a lower part of the casing 110, and exhaust (exhaust gas) discharged from the diesel engine 62 circulates inside. And an exhaust circulation part 111 having a substantially rectangular parallelepiped shape, and a raw material holding part 112 made of a plate-like member on which seeds to be heat-exchanged with the exhaust gas flowing through the exhaust circulation part 111 are placed. In the figure, the upper surface plate of the exhaust circulation part 111 also functions as the raw material holding part 112. The casing 110, the exhaust circulation part 111, and the raw material holding part 112 are all configured using a heat-resistant material such as metal or casting.

  A substantially rectangular parallelepiped space slightly smaller than the outer shape of the exhaust gas circulation part 111 is formed inside the exhaust gas circulation part 111 and the exhaust gas sent from the supercharger 624 via the pipe 91 circulates therethrough. One of the side surfaces of the exhaust circulation part 111 is provided with an inlet 1111 for introducing exhaust into the space. Further, an outlet 1112 for discharging the exhaust in the space to the outside is provided on a surface opposite to the side surface on which the inlet 1111 is provided.

  In addition, in the same figure, although each of the inflow port 1111 and the outflow port 1112 is provided in the side surface which the exhaust circulation part 111 opposes, the position which provides the inflow port 1111 and the outflow port 1112 is not necessarily restricted to this. The inflow port 1111 and the outflow port 1112 may be appropriately provided at positions where the entire upper surface functioning as the raw material holding unit 112 is heated to a uniform temperature evenly.

  Above the raw material holding part 112 in the housing 110, a flat plate-like first shelf plate 113 is disposed so as to be spaced from the raw material holding part 112 so that its plane is parallel to the flat surface of the raw material holding part 112. Is provided. Above the first shelf 113, there is a second shelf 114 arranged at a distance from the first shelf 113 so that the plane is parallel to the plane of the first shelf 113. Is provided. The first shelf plate 113 and the second shelf plate 114 are both configured using a heat-resistant material such as metal or casting.

  The first shelf plate 113 and the second shelf plate 114 are both held or fixed at predetermined positions by being locked by locking portions (pedestals, screws, etc.) (not shown) provided on the inner surface of the housing 110. ing. As the properties of the first shelf board 113 and the second shelf board 114, appropriate ones are selected according to the to-be-roasted object. For example, the first shelf board 113 and the second shelf board 114 may have a plate shape or a net shape.

  Although not shown in the figure, the inside of the housing 110 is hermetically sealed, and windows and doors for accessing the inside of the housing 110 are provided at predetermined positions on the side surface and the top surface of the housing 110. It has been.

  According to the roasting apparatus 11 having the above configuration, the seeds placed on the raw material holding unit 112 are heated by exchanging heat with the exhaust flowing through the exhaust circulation unit 111. As described above, in the power generation system 1 of the present embodiment, the seed is heated by exchanging heat between the exhaust discharged from the diesel engine 62 and the seed, so that an external energy supply such as an electric heater is required. The seeds can be roasted without providing a separate device. Further, according to the roasting apparatus 11 having the above configuration, the heat of exhaust from the diesel engine 62 can be efficiently transmitted to the seed, and the exhaust heat of the diesel engine 62 can be used for roasting the seed without waste. it can.

  Seeds can also be placed on the first shelf 113 and the second shelf 114. If seeds are placed on the first shelf plate 113 and the second shelf plate 114 in addition to the raw material holding unit 112, a large amount of seeds can be roasted at a time.

  Note that the amount of heat exchanged between the exhaust flowing through the exhaust circulation unit 111 and the seeds placed on the first shelf 113 or the second shelf 114 is the amount of the exhaust placed on the material holding unit 112. When the same seed is placed on each of the seeds, the roasting time of the first shelf 113 and the second shelf 114 is longer than that of the raw material holding unit 112. However, if the place where each of the seeds is placed is determined according to the nature of the seed, for example, a seed having a large water content is placed on the raw material holding part 112, the raw material holding part 112 and the first shelf board 113 are placed. And the roasting time in the second shelf 114 can be made uniform, and a large amount of seeds can be roasted efficiently.

  You may make it place to-be-heated objects other than a seed in the raw material holding | maintenance part 112, the 1st shelf board 113, and the 2nd shelf board 114. FIG. For example, foods such as fish, meat, and agricultural products can be placed to manufacture and cook dried fish. Further, a clothes-drying basket or the like can be provided inside the housing 110 and used as a clothes dryer.

  FIG. 3 shows another example of the roasting device 11. As shown in the figure, the roasting apparatus 11 has an exhaust circulation part 121 in which exhaust exhausted from the diesel engine 62 circulates in the lower part thereof, and seeds are held along the outer periphery of the exhaust circulation part 121. Thus, a substantially cylindrical raw material holding unit 122 that stores seeds and a stirring device 123 that stirs the seeds stored in the raw material holding unit 122 are provided.

  A substantially cylindrical space in which exhaust gas flows is formed inside the exhaust gas flow part 121. Further, the exhaust circulation part 121 is provided with an inlet 1211 for exhaust gas sent from the supercharger 624 via a pipe 91 at the lower part thereof. The exhaust circulation part 121 is provided with an exhaust outlet 1212 at the top thereof. The space is reduced in diameter (constricted) in a substantially conical shape in the vicinity of the revenue port 1211 and the outlet 1212.

  The raw material holding part 122 has a substantially cylindrical shape having a larger diameter than the exhaust circulation part 121. On the upper surface of the raw material holding part 122, an unillustrated charging port for introducing seeds into the raw material holding part 122 is provided. On the lower surface of the raw material holding unit 122, an unillustrated outlet for extracting the roasted seed from the raw material holding unit 122 is provided.

  The stirring device 123 is provided inside the raw material holding unit 122 and stirs the seed held in the raw material holding unit 122. The stirring device 123 is provided outside the raw material holding unit 122 and has a rotating shaft of the stirring blade 1231. And an electric motor 1232 for rotating the motor.

  In the roasting apparatus 11 having the above-described configuration, the seeds held in the raw material holding unit 122 are heated by heat exchange with the exhaust flowing through the exhaust circulation unit 121. Moreover, by stirring with the stirring apparatus 123, the whole seed hold | maintained inside the raw material holding | maintenance part 122 is heated uniformly, and a seed can be roasted uniformly. Moreover, according to the roasting apparatus 11 having the above configuration, the heat of the exhaust can be efficiently transmitted to the seed, and the exhaust heat of the diesel engine 62 can be used for roasting the seed without waste. As shown in FIG. 3, when seeds are introduced into the raw material holding unit 122, the stirring blades 1231 are buried in the seeds, so that generation of dust caused by stirring can be prevented.

  As described above, according to the power generation system 1 of the present embodiment, raw materials such as seeds can be roasted by effectively using the exhaust heat of the diesel engine 62, and efficient power generation can be performed. it can. Further, it is not necessary to secure a heat source for roasting from the outside, the cost required for operation of the diesel engine 62 can be suppressed, and this contributes to measures against global warming.

  The above description of the embodiment is for facilitating the understanding of the present invention, and does not limit the present invention. It goes without saying that the present invention can be changed and improved without departing from the gist thereof, and that the present invention includes equivalents thereof.

  For example, the power engine to which the present invention is applied is not limited to the structure described above, and can also be applied to a power engine such as a gas engine or a steam turbine from which exhaust heat is released. If the power generation system 1 is installed in a factory having a cogeneration system or a private power generation facility, roasting and heating can be performed without requiring a special heat source.

DESCRIPTION OF SYMBOLS 1 Electric power generation system 10 Roasting process part 11 Roasting apparatus 111 Exhaust distribution part 1111 Inlet 1112 Outlet 112 Raw material holding | maintenance part 113 1st shelf board 114 2nd shelf board 20 Oil extraction part 21 Oil expression part 30 Briquette part 31 Briquette apparatus DESCRIPTION OF SYMBOLS 40 Dephosphorization processing part 50 Filtration part 60 Electric power generation part 61 Bio oil storage tank 62 Diesel engine 621 Combustion chamber 624 Supercharger 625 Radiator 63 Light oil tank 64 Fuel injection device 66 Fuel filter 68 Bio oil filter 69 Generator

Claims (7)

A roasting device for roasting raw materials;
An oil press for extracting fuel from the raw material after roasting;
An engine for obtaining power by burning the extracted fuel, and the roasting device in a power engine comprising:
Roasting apparatus characterized by performing roasting by heating the raw material by exhaust heat of the engine. The roasting device according to claim 1,
An exhaust circulation section through which the exhaust discharged from the engine circulates,
A roasting apparatus, comprising: a raw material holding unit that holds the raw material that exchanges heat with the exhaust. A roasting device according to claim 2,
The exhaust flow part has an exhaust inlet and the exhaust outlet,
The raw material holding unit is made of a flat plate member. A roasting device according to claim 3,
A roasting apparatus having a flat shelf plate disposed above the flat plate member and spaced apart from the flat plate member so that a plane thereof is parallel to the flat surface of the flat plate member. . A roasting device according to claim 2,
The exhaust circulation part has the exhaust inlet at the lower part and the exhaust outlet at the upper part,
The roasting apparatus, wherein the raw material holding unit is a container that stores the raw material so that the raw material is held on an outer periphery of the exhaust circulation unit. The roasting apparatus according to claim 5,
A roasting apparatus, wherein a stirring device for stirring the raw material held by the raw material holding unit is provided. A roasting device for roasting raw materials;
An oil press for extracting fuel from the raw material after roasting;
An engine that obtains power by burning the extracted fuel;
A generator for generating power by the power of the engine;
A power generation system using a power engine equipped with
The roasting device is
Performing roasting by heating the raw material by the exhaust heat of the engine,
An exhaust circulation section through which the exhaust discharged from the engine circulates,
A power generation system comprising: a raw material holding unit that holds the raw material that exchanges heat with the exhaust.

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