JP2005180746A - Method for utilizing generated heat of wooden biomass - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for utilizing generated heat of wooden biomass effectively using thermal energy generated by burning the wooden biomass, capable of drying wood very economically, and capable of carrying out drying while controlling the wood at an ideal humidity and temperature. <P>SOLUTION: In the method for utilizing generated heat of the wooden biomass, the wooden biomass is burned by a combustion furnace 1, water is heated by the burning thermal energy into steam and hot water, air is heated into hot air, and the obtained steam and hot air are supplied to an enclosed wood drying chamber 14 to dry the wood W housed in the wood drying chamber 14. The hot water heated by the combustion furnace 1 is supplied to the wood drying chamber 14, and the wood W is dried while adjusting the temperature. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a treatment method for burning woody biomass and drying the wood by effectively using the generated thermal energy or heating a greenhouse in which plants are grown.

  A large amount of waste material is generated in the process of processing wood. A large amount of wood waste material is generated, such as planar scraps generated by cutting wood, a mixture of various waste materials, scraps obtained by pulverizing waste materials such as MDF and particle board, and scraps obtained by crushing wood pieces and skins. These woody biomass is actually incinerated and discarded, and the heat energy generated when incinerated and discarded is not effectively used.

  On the other hand, natural wood has a unique beauty and texture of natural wood that cannot be obtained with metal or plastic, but if it is used in an undried state, it will deform and become distorted over time, Or there is a defect such as shrinkage to form a gap. This disadvantage can be reduced by sufficiently drying the wood. However, in order to sufficiently dry the wood, it is necessary to leave it for a long period of time or to remove moisture by heating. Although the method of forcibly removing moisture can be dried in a short time, it consumes a large amount of heat energy, and thus has a drawback of increasing running costs.

  In order to reduce the running cost of drying wood, a drying method has been developed that effectively uses thermal energy generated when woody biomass is burned. (See Patent Document 1)

This gazette has a furnace in the floor of the fireproof room, a pedestal part of raw wood in the center of the room, a convection blower installed in an appropriate place in the room, and a temperature sensor arranged in the center of the room and wood, Waste materials such as wood scraps, demolition materials, or pieces of wood are placed in the furnace as combustion materials, and the surface is covered with ignition materials such as planar waste, canna waste, bark or waste paper, and the furnace lid is lit. After that, the inside of the furnace is incompletely burned by adjusting the air in the exhaust duct, etc., the room temperature is adjusted to a range of 75 to 80 ° C., and smoke and hot air are circulated in the convection blower to dry the wood to be dried and the outside air temperature. A method for drying smoke from wood comprising a step of low-temperature soot drying for about 3 to 5 days depending on the temperature and leaving the temperature difference between the room temperature, the outside air temperature and the center temperature of the wood within 8 ° C. is described.
JP-A-9-229555

  The drying method described in this publication has the advantage that the fuel cost can be reduced because the drying is performed by effectively using the thermal energy of the woody biomass. However, this method is extremely difficult to sufficiently dry the wood in an ideal environment. In particular, it is extremely difficult to control both temperature and humidity, which are external environments for drying wood, in an ideal environment. In addition, because woody biomass is incompletely burned, it is difficult to clean the exhaust gas. In particular, when a substance that generates a harmful substance such as dioxin is included when burned, there is a disadvantage that the harmful substance contained in the exhaust gas cannot be eliminated by incineration at a high temperature. Furthermore, since it is necessary to store various woody biomass as a combustion material in a specific state, it is very difficult to put woody biomass and it is difficult to control the amount of the woody biomass.

  Furthermore, the methods described in the above publications cannot be effectively used for other applications because the thermal energy generated when burning woody biomass is used only for drying wood.

  The present invention has been developed for the purpose of solving such drawbacks. An important object of the present invention is that the thermal energy generated by burning woody biomass can be effectively used to dry the wood extremely economically, while controlling the wood to an ideal temperature and humidity. The object is to provide a method for using heat generated from woody biomass that can be dried.

  In addition, another important object of the present invention is to use the generated heat of woody biomass that can heat the greenhouse that grows plants to an ideal environment by effectively using the heat energy generated when burning woody biomass. It is to provide a method.

  In the method of using heat generated from woody biomass according to claim 1 of the present invention, the woody biomass is burned in the combustion furnace 1, water is heated with the heat energy to burn it into steam and hot water, and the air is further heated. Then, warm air is obtained, and the obtained steam and warm air are supplied to the closed wood drying chamber 14 to dry the wood W stored in the wood drying chamber 14. Further, warm water heated in the combustion furnace 1 is supplied to the wood drying chamber 14 to dry the wood W while adjusting the humidity.

  In the method of using heat generated from woody biomass according to claim 2 of the present invention, the woody biomass is burned in the combustion furnace 1, water is heated with the heat energy to burn to warm water, and the air is further heated. The exhaust gas containing carbon dioxide gas is used, and the obtained hot water is circulated through the heat-dissipating heat exchanger 27 provided in the greenhouse 26 to heat the air in the greenhouse 26, and the exhaust gas is supplied to add the air in the greenhouse 26. While warming, carbon dioxide is supplied. In this method, the plant S in the greenhouse 26 is heated and cultivated while supplying carbon dioxide gas.

  The method of using generated heat described in claim 3 of the present invention includes, as woody biomass, forest land waste, factory waste, housing demolition waste, pallet / packaging waste, pruned branch waste, food processing waste, Planar scraps, a mixture of various waste materials, scraps obtained by pulverizing waste materials such as MDF and particle board, scraps obtained by crushing wood pieces and bark, or a mixture thereof are used. Furthermore, the generated heat utilization method described in claim 4 of the present invention uses a woody biomass mixed with food waste.

  Furthermore, the generated heat utilization method described in claim 5 of the present invention is the generated heat utilization method described in claim 2, wherein the gas turbine generator 12 is driven by the combustion gas to generate electric power and generate electric power. The light source 29 of the greenhouse 26 is turned on with electric power.

  Furthermore, the generated heat utilization method described in claim 6 of the present invention is the generated heat utilization method described in claim 1, wherein the gas turbine generator 12 is driven by the combustion gas to generate electric power and generate electric power. The light source 29 of the wood drying chamber 14 is turned on with electric power.

  Furthermore, the generated heat utilization method described in claim 7 of the present invention supplies steam or hot air generated in the combustion furnace 1 to the wood fumigation chamber 30 and stores it in the wood fumigation chamber 30. The wood W is fumigated.

  The method of using heat generated from woody biomass according to claim 1 of the present invention has an advantage that wood can be dried extremely economically by effectively using heat energy generated by burning woody biomass. In particular, the method of using generated heat according to the present invention has the advantage that wood can be dried while controlling it at an ideal temperature and humidity. The heat generation method of the present invention heats water and air by effectively using thermal energy for burning woody biomass, and supplies the obtained steam and hot air to a wood drying chamber to dry the wood. At the same time, heated hot water is supplied to the wood drying chamber to dry the wood while adjusting the humidity. As described above, the method of using generated heat of the present invention adjusts the drying temperature and humidity while using warm air and hot water, so that it can be ideally dried in wood, which is 1/3 of the conventional steam-type wood drying. 1/6 and very low cost wood drying is possible.

  The method of using heat generated from woody biomass according to claim 2 of the present invention is characterized in that the greenhouse that grows plants can be heated to an ideal environment by effectively using thermal energy generated when woody biomass is burned. is there. In particular, this method burns woody biomass in a combustion furnace, heats the air with the heat energy it burns, and supplies carbon dioxide to the greenhouse as an exhaust gas containing carbon dioxide. In addition, it can be cultivated while supplying carbon dioxide to plants.

  Furthermore, in the heat generation method according to claim 5 of the present invention, the gas turbine generator is driven by the combustion gas generated when the woody biomass is burned to generate power, and the generated light is used as a light source for the greenhouse. Since the light is turned on, the light source can be turned on without supplying power from the outside.

  Furthermore, in the heat generation method according to claim 6 of the present invention, the gas turbine generator is driven by the combustion gas generated when the woody biomass is burned to generate power, and the generated power is used for the wood drying chamber. Since the light source is turned on, the light source can be turned on without supplying power from the outside.

  Furthermore, in the heat generation method according to claim 7 of the present invention, steam or hot air generated in the combustion furnace is supplied to the wood fumigation chamber, and the wood stored in the wood fumigation chamber is fumigated. Therefore, there is a feature that wood can be fumigated extremely economically by effectively using the heat energy generated by burning woody biomass.

  Embodiments of the present invention will be described below with reference to the drawings. However, the examples shown below exemplify a method for using heat generated from woody biomass to embody the technical idea of the present invention, and the present invention describes a method for using heat generated from woody biomass as follows. Not specific.

  Further, in this specification, for easy understanding of the claims, the numbers corresponding to the members shown in the embodiments are indicated in “Claims” and “Means for Solving the Problems”. It is added to the member. However, the members shown in the claims are not limited to the members in the embodiments.

  FIG. 1 shows an apparatus for drying wood W by burning woody biomass. The wood drying apparatus shown in this figure includes a combustion furnace 1 for burning woody biomass, a dryer 13 having a wood drying chamber 14 having a closed structure for storing and drying wood W, and wood for storing wood W. And a fumigation machine 31 having a wood fumigation chamber 30 having a closed structure for steaming.

  The combustion furnace 1 is provided in a combustion chamber 2 for supplying and burning woody biomass and an exhaust passage 3 connected to the combustion chamber 2, and is used for steam by heating water with combustion thermal energy to form steam. A heat exchanger 4 and a heat exchanger 5 for warm water are provided.

  The combustion furnace 1 shown in the figure includes a screw feeder 6 that continuously supplies woody biomass to the combustion chamber 2. The screw feeder 6 is connected to the bottom of the woody biomass supply hopper 7 and continuously supplies the woody biomass supplied to the supply hopper 7 to the combustion chamber 2. The supply hopper 7 is made of woody biomass that is composed of planar waste, a mixture of various waste materials, waste obtained by pulverizing waste materials such as MDF and particle board, waste pieces obtained by crushing pieces of wood and skin, or a mixture of these. Supply as. Furthermore, the supply hopper 7 can be supplied with woody biomass mixed with waste food such as okara. Since the food waste has a high moisture content, the mixing ratio is adjusted so that it can be sufficiently burned in the combustion furnace 1.

  In the illustrated combustion furnace 1, a combustion chamber 2 is provided inside a cylindrical drum 8. The cylindrical drum 8 has a screw feeder 6 connected to one central portion of the cylinder, and the other end (right end in the figure) of the cylinder is connected to the exhaust passage 3. The cylindrical drum 8 having the inside as the combustion chamber 2 is supported by a roller 9 so as to be rotatable, as indicated by an arrow in the figure, with the rotation axis being horizontally or slightly inclined. The roller 9 is driven by a motor (not shown) and is slowly rotated to rotate the cylindrical drum 8 in the combustion chamber 2. The combustion chamber 2 that rotates the combustion chamber 2 has a feature that it can be completely burned while stirring the supplied woody biomass.

  The cylindrical drum 8 has a discharge side that is the right side in the drawing as a tapered shape that gradually becomes thinner toward the tip, and prevents the supplied woody biomass from being discharged into the exhaust passage 3 without being burned. Furthermore, the combustion furnace 1 in the figure is provided with a burner 10 for forcibly burning the woody biomass from the exhaust passage 3 toward the combustion chamber 2. This burner 10 is ignited first when burning woody biomass, or when burning woody biomass having a high moisture content. When the woody biomass can burn, the burner 10 is not ignited.

  One end of the cylindrical drum 8 is connected to the exhaust passage 3 so that the combustion gas does not leak and can rotate. In the illustrated combustion furnace 1, an exhaust blower 11 is connected to an exhaust passage 3. This structure can prevent the combustion gas from leaking between the cylindrical drum 8 and the exhaust passage 3 because the combustion chamber 2 and the exhaust passage 3 have a negative pressure.

  The steam heat exchanger 4 and the hot water heat exchanger 5 are provided in the exhaust passage 3. The steam heat exchanger 4 heats the supplied water and discharges it as steam, and the hot water heat exchanger 5 heats the supplied water and discharges it as hot water. The steam heat exchanger 4 is disposed on the side closer to the combustion chamber 2, and the hot water heat exchanger 5 is disposed on the side farther from the combustion chamber 2 than the steam heat exchanger 4.

  Further, the exhaust passage 3 is connected to a gas turbine generator 12 in order to generate electric power with the heated exhaust gas for the steam heat exchanger 4 and the hot water heat exchanger 5. The gas turbine generator 12 rotates the turbine with exhaust gas, and generates power by rotating the generator with this turbine. In the figure, the gas turbine generator 12 is rotated by the exhaust gas after heating the steam heat exchanger 4 and the hot water heat exchanger 5, but the exhaust passage is branched, and the gas turbine generator is installed at one of the branch passages. It is also possible to connect the steam heat exchanger and the hot water heat exchanger to the other branch path. The structure in which the gas turbine generator is connected to the branch path can increase the output of the gas turbine generator.

  The dryer 13 includes a case 15 provided with a drying chamber 14 having a closed structure therein, and a circulation fan 16 that forcibly circulates the air in the drying chamber 14 of the case 15 to uniformly dry all the wood W. A steam nozzle 17 for injecting water vapor into the drying chamber 14 to heat the drying chamber 14, a hot air duct 18 for supplying and heating the exhaust gas to the drying chamber 14, and a humidity by injecting hot water into the drying chamber 14. A hot water nozzle 19 for adjusting the temperature, a temperature sensor 20 for detecting the temperature of the drying chamber 14, a humidity sensor 21 for detecting humidity, and signals of the temperature sensor 20 and the humidity sensor 21 are calculated and connected to the steam nozzle 17. And a controller 24 for controlling the regulating valve 23 connected to the hot water nozzle 19.

  The wood W is stored inside the drying chamber 14 with a gap between the inner surface of the drying chamber 14 so that air can be circulated around it. Further, although not shown, the timbers W are stacked so that there is a gap between the piers.

  The case 15 is insulated and is provided with an opening / closing door (not shown) at an opening for taking in and out the wood W so that the case 15 can be closed. The case 15 is provided with an exhaust port (not shown), and a predetermined amount of air is exhausted from the exhaust port. The exhaust port always exhausts constant air or adjusts the amount of air exhausted by the controller 24.

  The circulation fan 16 is a ceiling portion of the drying chamber 14 and is disposed between the wood W and the top plate. However, the circulation fan can also be provided on the floor portion of the drying chamber or on the side wall portion. The circulation fan 16 shown in the figure blows air in a forced horizontal direction and circulates it inside the drying chamber 14. The circulation fan 16 is always operated to make the temperature and humidity of the internal air of the drying chamber 14 uniform.

  The steam nozzle 17 is connected to the steam heat exchanger 4 of the combustion furnace 1 via a regulating valve 22. The steam nozzle 17 adjusts the amount of steam to be jetted to control the temperature of the drying chamber 14 to a set temperature. The amount of steam injection is adjusted by controlling the opening degree of the regulating valve 22 connected thereto with the controller 24. The controller 24 detects the indoor air with the temperature sensor 20, and when the temperature of the drying chamber 14 becomes lower than the set temperature, the controller 24 opens the control valve 22 to inject steam, or increases the opening of the control valve 22. When the steam injection amount is increased and the temperature becomes higher than the set temperature, the control valve 22 is closed and the steam injection is stopped, or the opening degree of the control valve 22 is reduced to reduce the steam injection amount. .

  The hot air duct 18 is connected to the exhaust passage 3 of the combustion furnace 1, supplies part or all of the exhaust gas of the combustion furnace 1 to the drying chamber 14, and warms the drying chamber 14 with the exhaust gas. It is also possible to connect the adjustment valve 25 to the hot air duct 18 and control the opening degree of the adjustment valve 25 by the controller 24 so that the supply amount of the exhaust gas is controlled by the temperature of the drying chamber 14. The drying device that supplies the exhaust gas to the drying chamber 14 with the hot air duct 18 can warm the drying chamber 14 more effectively using the thermal energy of the combustion furnace 1. However, the exhaust gas is not necessarily supplied to the drying chamber.

  The hot water nozzle 19 is connected to the hot water heat exchanger 5 of the combustion furnace 1 through the adjustment valve 23, and adjusts the humidity of the drying chamber 14 by spraying hot water in the drying chamber 14. If the humidity in the drying chamber 14 is too low, the drying time of the wood W is shortened, but the cracks and madness of the wood W are increased. In order to avoid this harmful effect, when the humidity of the drying chamber 14 becomes lower than the set humidity, hot water is jetted from the hot water nozzle 19 to increase the humidity of the drying chamber 14. The hot water injection amount of the hot water nozzle 19 is adjusted by controlling the opening degree of the adjustment valve 23 controlled thereby by the controller 24.

  The controller 24 is a signal input from the temperature sensor 20 and the humidity sensor 21, detects the temperature and humidity of the drying chamber 14, and adjusts the temperature to be the set temperature and the humidity to be the set humidity. The opening degree of 22, 23, 25 is controlled. The controller 24 controls the temperature in the drying chamber 14 to be a set temperature of 40 ° C to 90 ° C. The set temperature should be gradually increased as time passes and the drying of the wood progresses. The set temperature can be in the range of 40 ° C to 120 ° C. The drying apparatus shown in the figure controls the control valves 22, 23, and 25 connected to the steam nozzle 17, the hot water nozzle 19, and the hot air duct 18 with the controller 24 so that the temperature and humidity of the drying chamber 14 are within a set range. Control. The controller can also control the temperature and humidity of the drying chamber by controlling the amount of air exhausted from the exhaust port. In this case, the controller controls the exhaust amount so that the amount of air to be exhausted increases as the temperature of the drying chamber increases, and the amount of air to exhaust increases even when the humidity increases.

  The above drying apparatus combusts woody biomass in the combustion furnace 1, heats water with the heat energy it burns to form steam and warm water, further heats the air to warm air, and uses the resulting steam and warm air. Supply to the closed wood drying chamber 14 to dry the wood W stored in the wood drying chamber 14, and further supply hot water heated in the combustion furnace 1 to the wood drying chamber 14 to adjust the humidity. While drying the wood W.

  The electric power generated by the gas turbine generator 12 turns on the light source 29 of the wood drying chamber 14. Further, the circulating fan 16 is operated with the power generated by the gas turbine generator 12 and power is supplied to the controller 24. This apparatus for drying wood has the feature that it can be operated without supplying power from the outside.

  The fumigator 31 includes a case 32 having a fumigation chamber 30 with a closed structure inside, and a circulation fan 33 for forcibly circulating the air inside the case 32 and fumigating all the wood W uniformly. The steam nozzle 34 for injecting water vapor into the fumigation chamber 30 to heat the fumigation chamber 30, the hot air duct 35 for supplying exhaust gas to the fumigation chamber 30 for heating, and the temperature of the fumigation chamber 30 are detected. A temperature sensor 37 that calculates the signal from the temperature sensor 37, a control valve 39 that is connected to the steam nozzle 34, and a controller 40 that controls the control valve 41 connected to the hot air duct 35. .

  The wood W is stored inside the fumigation chamber 30 with a gap between the inner surface of the fumigation chamber 30 so that air can circulate around. Furthermore, although not shown, the timber W is laminated so that there is a gap between the sleepers.

  The case 32 is insulated and is provided with an opening / closing door (not shown) at an opening for taking in and out the wood W so that the case 32 can be closed. The case 32 is provided with an exhaust port (not shown), and a predetermined amount of air is exhausted from the exhaust port. The exhaust port always exhausts constant air or adjusts the amount of air exhausted by the controller 40.

  The circulation fan 33 is a ceiling portion of the fumigation chamber 30 and is disposed between the wood W and the top plate. However, the circulation fan can be provided on the floor portion of the fumigation chamber or on the side wall portion. The circulation fan 33 shown in the figure blows air in a forced horizontal direction and circulates it inside the fumigation chamber 30. The circulation fan 33 is always operated to make the temperature and humidity of the internal air of the fumigation chamber 30 uniform.

  The steam nozzle 34 is connected to the steam heat exchanger 36 of the combustion furnace 1 via a regulating valve 39. The steam nozzle 34 adjusts the amount of steam to be injected, and controls the temperature of the fumigation chamber 30 to a set temperature. The injection amount of the steam is adjusted by controlling the opening degree of the adjustment valve 39 connected thereto with the controller 40. The controller 40 detects the indoor air with the temperature sensor 37, and when the temperature of the fumigation chamber 30 becomes lower than the set temperature, the controller 40 opens the control valve 39 to inject steam, or increases the opening of the control valve 39. If the steam injection amount is increased and the temperature becomes higher than the set temperature, the control valve 39 is closed to stop the steam injection, or the opening degree of the control valve 39 is decreased to reduce the steam injection amount. To do.

  The hot air duct 35 is connected to the exhaust passage 3 of the combustion furnace 1, supplies a part or the whole of the exhaust gas of the combustion furnace 1 to the fumigation chamber 30, and warms the fumigation chamber 30 with the exhaust gas. . It is also possible to connect the adjustment valve 41 to the hot air duct 35 and control the opening degree of the adjustment valve 41 with the controller 40 so that the supply amount of the exhaust gas is controlled by the temperature of the fumigation chamber 30. The fumigation device that supplies the exhaust gas to the fumigation chamber 30 through the hot air duct 35 can warm the fumigation chamber 30 by using the thermal energy of the combustion furnace 1 more effectively. However, the exhaust gas is not necessarily supplied to the fumigation chamber. The fumigation chamber 30 has a set temperature of 70 ° C. and kills wood in 5 hours. However, the set temperature of the fumigation chamber 30 may be 60 to 80 ° C. The fumigation time can be shortened when the set temperature is high, and the fumigation time is lengthened when the temperature is low.

  Further, the fumigator 31 uses the power generated by the gas turbine generator 12 to turn on the light source 43 and to operate the circulation fan 33. This fumigator 31 also has the feature that it can be operated without supplying power from the outside.

  FIG. 2 shows an apparatus for heating the greenhouse 26 by burning woody biomass. The heating system of the greenhouse 26 shown in this figure is composed of a combustion furnace 1 for burning woody biomass and a closed greenhouse 26 for cultivating plants S. The combustion furnace 1 can be the same as that shown in FIG. 1 except that no steam heat exchanger is provided.

  The greenhouse 26 grows the plant S with the inside as a closed structure. Inside the greenhouse 26, a heat-dissipating heat exchanger 27 that heats indoor air, and a circulation fan 16 that forcibly blows air to the heat-dissipating heat exchanger 27 and heats the air in the greenhouse 26 The hot air duct 18 that supplies exhaust gas to the greenhouse 26 and heats it, the temperature sensor 20 that detects the temperature of the greenhouse 26, and the signal of the temperature sensor 20 are calculated to control the operation of the circulation fan 16, And a controller 24 that controls the regulating valve 25 connected to the hot air duct 18.

  The greenhouse 26 has a closed structure in which a plastic sheet such as a vinyl chloride sheet or a polyethylene sheet that transmits sunlight is stretched around the frame, or glass is fixed to the frame, and the ground is closed as shown in the figure. The plant S is cultivated by providing strawberries, or although not shown, a cultivation floor is set apart from the ground and the plant is cultivated on this cultivation floor. The greenhouse 26 is provided with an exhaust port (not shown) with a fan for forcibly exhausting indoor air when the temperature rises, and forcibly exhausts air from the exhaust port when the temperature rises.

  The heat dissipation heat exchanger 27 is provided in the vicinity of the ceiling of the greenhouse 26 and is connected to the hot water heat exchanger 5 of the combustion furnace 1 via a circulation pump 28. The circulation pump 28 circulates hot water through the hot water heat exchanger 5 and the heat dissipation heat exchanger 27 to heat the heat dissipation heat exchanger 27. The circulation pump 28 is operated continuously.

  The circulation fan 16 is disposed on the back surface of the heat dissipation heat exchanger 27 provided on the ceiling portion of the greenhouse 26 so that the air passes through the heat dissipation heat exchanger 27. Since the heat-dissipating heat exchanger can be provided on the floor portion of the greenhouse or on the side wall portion, a circulation fan can be provided in the vicinity thereof. The circulation fan 16 shown in the figure forcibly blows air in the horizontal direction, and circulates the air in the greenhouse 26 while heating it in the heat exchanger 27 for heat dissipation. The operation of the circulation fan 16 is controlled by the controller 24. When the room air becomes lower than the set temperature, the circulation fan 16 is operated to heat the room air.

  The hot air duct 18 supplies part or all of the exhaust gas of the combustion furnace 1 to the greenhouse 26, warms the greenhouse 26 with the exhaust gas, and supplies carbon dioxide gas to the greenhouse 26. An adjustment valve 25 is connected to the hot air duct 18, the opening degree of the adjustment valve 25 is controlled by the controller 24, and the supply amount of the exhaust gas is controlled by the temperature of the greenhouse 26.

  The controller 24 detects the temperature of the greenhouse 26 by a signal input from the temperature sensor 20, and controls the operation of the circulation fan 16 and the opening of the adjustment valve 25 so that the temperature becomes the set temperature. The temperature of the greenhouse 26 is controlled to a set range by controlling the operation of the circulation fan 16 and the regulating valve 25 connected to the hot air duct 18 by the drying device and controller 24 shown in the figure. The control temperature is not constant depending on the type of plant to be cultivated, season, and time, but is 15 to 35 ° C. The controller can also control the temperature of the greenhouse by controlling the amount of air exhausted from the exhaust port. In this case, the controller controls the exhaust amount so that the amount of air to be exhausted increases as the temperature of the greenhouse increases, and the amount of air to exhaust increases even when the humidity increases.

  The above greenhouse system combusts woody biomass in the combustion furnace 1, heats the water with the heat energy it burns into warm water, further heats the air into exhaust gas containing carbon dioxide, and uses the resulting warm water in the greenhouse. The air in the greenhouse 26 is circulated through the heat-dissipating heat exchanger 27 provided in the heater 26, the air in the greenhouse 26 is heated, the exhaust gas is supplied to warm the air in the greenhouse 26, and the carbon dioxide gas is supplied. While heating the plant S, the plant S is cultivated while supplying carbon dioxide gas.

  Furthermore, the gas turbine generator 12 provided in the combustion furnace 1 generates power, and the light source 29 of the greenhouse 26 is turned on with the generated power. Furthermore, the circulation fan 16 and the circulation pump 28 can be driven by the power generated by the gas turbine generator 12. This greenhouse system has the feature that it can be operated without supplying power from outside.

BRIEF DESCRIPTION OF THE DRAWINGS It is a schematic block diagram which shows the apparatus used for the generated heat utilization method of the wood type biomass concerning one Example of this invention, Comprising: Wood type biomass is burned and wood is dried. It is a schematic block diagram which shows the apparatus used for the generation | occurrence | production heat utilization method of the wood type biomass concerning the other Example of this invention, Comprising: Wood type biomass is burned and a greenhouse is heated.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Combustion furnace 2 ... Combustion chamber 3 ... Exhaust path 4 ... Steam heat exchanger 5 ... Hot water heat exchanger 6 ... Screw feeder 7 ... Supply hopper 8 ... Cylindrical drum 9 ... Roller 10 ... Burner 11 ... Exhaust blower 12 ... Gas turbine generator 13 ... Dryer 14 ... Drying chamber 15 ... Case 16 ... Circulating fan 17 ... Steam nozzle 18 ... Hot air duct 19 ... Hot water nozzle 20 ... Temperature sensor 21 ... Humidity sensor 22 ... Adjustment valve 23 ... Adjustment valve 24 ... Control unit 25 ... Adjusting valve 26 ... Greenhouse 27 ... Heat exchanger for heat dissipation 28 ... Circulation pump 29 ... Light source 30 ... Fumigation chamber 31 ... Fumigator 32 ... Case 33 ... Circulation fan 34 ... Steam nozzle 35 ... Hot air duct 36 ... Steam heat exchanger 37 ... Temperature sensor 39 ... Regulating valve 40 ... Controller 41 ... Regulating valve 42 ... Light source W ... Wood S ... Plant

Claims (7)

  Wood-based biomass is burned in a combustion furnace (1), water is heated with the heat energy it burns into steam and hot water, and air is further heated into warm air, and the resulting steam and hot air are closed wood Supply to the drying chamber (14), dry the wood (W) stored in the wood drying chamber (14), and further supply hot water heated in the combustion furnace (1) to the wood drying chamber (14) Then, the heat generated from woody biomass that dries the wood (W) while adjusting the humidity.   Woody biomass is burned in a combustion furnace (1), water is heated with the heat energy it burns to warm water, and air is further heated to exhaust gas containing carbon dioxide, and the resulting hot water is sent to the greenhouse (26). It is circulated through the heat-dissipating heat exchanger (27) to warm the air in the greenhouse (26), supply exhaust gas to warm the air in the greenhouse (26), and supply carbon dioxide. A method of using the generated heat of woody biomass that is cultivated while heating the plant (S) in the greenhouse (26) and supplying carbon dioxide gas.   Woody biomass such as forest land waste, factory waste, housing demolition waste, pallet / packaging waste, pruning waste, food processing waste, planar waste, mixture of various waste materials, MDF and particle board waste 3. The method for using heat generated from woody biomass according to claim 1 or 2, wherein any one of wastes obtained by pulverizing wood, wastes obtained by crushing wood pieces and leather, or a mixture thereof is used.   The method for using heat generated from woody biomass according to claim 1 or 2, wherein the woody biomass is mixed with food waste.   The method for using the generated heat of woody biomass according to claim 2, wherein the gas turbine generator (12) is driven by the combustion gas to generate power, and the light source (29) of the greenhouse (26) is turned on by the generated power.   The method for using the generated heat of woody biomass according to claim 1, wherein the gas turbine generator (12) is driven by combustion gas to generate electricity, and the light source (29) of the wood drying chamber (14) is turned on by the generated power. . The steam or hot air generated in the combustion furnace (1) is supplied to the wood fumigation chamber (30), and the wood (W) stored in the wood fumigation chamber (30) is fumigated. A method of using generated heat of woody biomass as described.

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