JP3196858U - Hot water / steam generator using waste vegetable fuel - Google Patents

Abstract

A hot water / steam generator using plant waste fuel is provided. A secondary crusher in which water-containing vegetable waste 1 is crushed from a supply tank by a primary crusher by a belt conveyor and supplied to a storage tank, and a fuel raw material is installed in the lower part of the storage tank. The raw material fixed quantity storage tank 2 consisting of a belt conveyor which is transported to the next process, and the mixed type in which the combustion exhaust gas is supplied and distributed to the crushed hydrous vegetable waste material supplied from the raw material fixed quantity storage tank 2 to be partially dried A mixing / drying container 4 equipped with a stirrer equipped with a stirrer equipped with a stirring arm blade, and a dry crushed mushroom waste fungus bed vertical type supplied from the mixing / drying container 4 are conveyed by a conveyor 11 with blades. It is conveyed, and through a rotary valve 20, a quantitative feeder 13 that can quantitatively supply dry plant waste fuel, a combustion furnace 16 that uses dried plant waste crushed material, and a large amount of combustion gas. A once-through boiler unit 9 for generating steam, hot water by Formula circulation heat exchanger, a steam generator 5 via a steam separator 18, made of. [Selection] Figure 1

Description

In particular, the present invention is a method in which a plant waste material containing a large amount of water is dried to a low water content in crushing, mixing and drying operations, and then steam or the like is produced by fuel obtained by partially drying the raw material with exhaust gas from a combustion device. The invention relates to providing a combustion furnace for a generator.

Although a rotating blade shaft is provided in the storage hopper to increase the fluidity of stored items containing a large amount of moisture, it is not suitable for substances with high tackiness, and sticks to the rotating shaft / blade. It is difficult to remove the material between them. The rotating shaft may stop. There are various proposals for this (see Patent Documents 1 to 3). As for the enoki mushroom bed with high water content, sufficient results have not been obtained in the crushing and scraping machine at the time of drying.

Okara is a high-protein food processing residue and is widely used as a feed for fish farming and livestock feed. As a means for fermenting and using this okara, a mixed feed is disclosed in which the okara is pre-fermented with a fiber-degrading enzyme Bacillus subtilis, dehydrated and dried, and other raw materials are added and mixed thereto (see Patent Document 1). .

Although squid liver is known to have a feeding-inducing effect, it is not used as a dry blended feed as it is, but once formed into a powder form, it is used as a raw material for the blended feed. In addition, a fish feed produced by kneading, heating, and pressurizing a mixture with other blended raw materials has been disclosed (see Patent Document 2).

Also disclosed are feed additives, liquid feed additives, feeds, and methods for producing the same, characterized by adding thermophilic mirobacterium species to organic materials such as seafood residues and subjecting them to high temperature fermentation under aerobic conditions (patents) Reference 3), an ecological environment-improving material obtained by adding thermophilic inoculum PTA-1773 to organic materials such as shrimp and / or crab residue and fermenting at 50-90 ° C. under aerobic conditions is disclosed. (See Patent Document 4).

A large amount of waste material is generated in the process of processing wood. Waste wood is generated in large quantities, such as planar waste generated by cutting wood, a mixture of various waste materials, waste containing pulverized waste 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 drawback allows the wood to be sufficiently dried to reduce gaps. 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.

For the purpose of reducing the running cost of drying wood, a drying method has been developed that effectively uses thermal energy generated when wood-based biomass containing moisture is burned (see Patent Document 1).

In this document, there is a furnace in the floor of the fireproof room, a pedestrian 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, Inside, waste materials such as wood scraps, demolition materials or wood fragments are put as combustion materials, and the surface is covered as waste materials such as planar waste, canna waste, bark or waste paper, etc., and the lid of the furnace is covered and after ignition Adjusts the air inside the furnace by adjusting the air in the exhaust duct, etc., adjusts the room temperature to a range of 75 to 80 ° C., and circulates smoke and hot air in the convection blower to reach the drying target wood and the outside air temperature. Accordingly, there is described a method for drying smoke from wood comprising a step of drying at low temperature smoke for about 3 to 5 days and leaving it until the difference between the room temperature and the outside temperature and the temperature at the center of the wood is within 8 ° C.

2. Description of the Related Art Conventionally, an externally heated drying furnace or incinerator for drying other water-containing organic waste such as chicken manure, livestock manure, and household waste is known. There has also been a proposal to use a combustion gas from an incinerator as a heat source for a dry carbonization furnace by combining a drying furnace and an incinerator. (See Patent Documents 1, 2, and 3.)

The plant waste containing 50% or more of the water was mostly used for compost, but there is no information on the combustion method as the reuse of fuel for drying regarding this highly water-containing plant waste. In particular, regarding the reuse of plant waste, little is known to use it as a heat source or steam for combustion.

JP-A-11-289994. Japanese Patent No. 3023534. Japanese Patent No. 3314302. Unexamined-Japanese-Patent No. 2003-219864. JP-A-5-164314 JP-A-6-159635 JP 2002-356319 A

When processing highly viscous bulk waste with high water content vegetable waste with a moisture content of 50% or more, a conveyor such as a discharge screw conveyor, a conveyor with a vertical plate for extrusion, a bread conveyor, a scraper conveyor, etc. In a storage hopper that stores waste, if a large amount of bulk material is deposited in the hopper, the material is discharged to the crushing, stirring / cutting, and scraping device when heat treatment is performed. In addition to the load for carrying out the process, the weight of the deposited material is added as an extra load, and sufficient agitation / discharge processing cannot be performed.

It is important for the present invention to have a dry agitation container and a heat treatment apparatus that can hold a vegetable waste material having a certain viscosity in the middle of pre-combustion in such a mass with a lot of moisture. With the object of providing an apparatus that solves the above-mentioned problems, in particular, when recycling waste plant materials that contain a large amount of moisture of 50% or more and are in a massive state, in a sufficiently close state after pulverization Establish drying with exhaust gas that can be processed into hot plant waste that becomes an effective combustion raw material by heat treatment methods such as treatment with hot air such as exhaust heat that can be dried to uniformly reduce moisture to 20% or less And it aims at finishing to the combustion apparatus which can be taken for combustion in an appropriate state.

In particular, when substances that generate harmful substances such as dioxins are included when burning high-moisture waste vegetable fuel, there is a disadvantage that harmful substances contained in exhaust gas cannot be incinerated at high temperatures. Furthermore, since it is necessary to use high-moisture plant waste material as a combustion material in a specific state, adding high-moisture plant waste material fuel containing a lot of water will raise the temperature in the combustion furnace to a high temperature. It is extremely difficult to control the amount of fuel to be introduced.

Furthermore, the method described in the above literature uses only the heat energy generated when burning high water content vegetable waste in a small combustion furnace for drying wood, so other combustion, heating fuel, etc. It cannot be used effectively for the purpose. There are few proposals of small-sized combustion furnaces with high-moisture plant waste fuel containing a large amount of water.

The present invention has been developed for the purpose of solving such drawbacks. A high water content plant waste material that dries plant waste material chips into fuel before combustion by effectively using the thermal energy generated by burning 50% or more crushed high water content plant waste material fuel In addition to being extremely economically dried and usable as fuel, the heat generated from the high-moisture vegetable waste fuel generated from fuel chips while drying and controlling the moisture-containing and high-humidity plant waste material to an ideal temperature It is to provide usage.

In addition, the thermal energy generated when burning high-moisture plant waste is reduced, and the temperature of the greenhouse that grows plants in agricultural greenhouses by effectively using it as fuel is controlled, making it an ideal environment Another object of the present invention is to provide a method for utilizing heat generated from a high-moisture plant waste material that can be warmed and a steam generator.

Further, in the conventional apparatus, the high-moisture plant waste material fuel has a high water content and is also a highly viscous lump, so that a large amount of fossil fuel is required for processing. We have been studying the use of high-moisture plant waste material fuel that contains water as a heating fuel for greenhouses, greenhouses, etc., but sufficient methods, equipment, and steam generation systems and heating systems are provided. It has not been.

In order to contribute to resource saving and pollution-free (environmental conservation), the present inventor pre-heated high-moisture plant waste materials in the form of chips. The purpose is to develop a system to dry and use as a hot water fuel for agricultural facilities while circulating a heat source as an effective high water content vegetable waste fuel.

In a steam generator by drying-combustion treatment using hydrous biomass, which is botanical waste material containing 50% by weight or more of water, the hydrous plant waste material is crushed from a supply tank by a belt conveyor in a primary crusher. Then, the raw material fixed quantity storage tank which consists of a belt core which is supplied to the storage tank and transports the fuel raw material to the next process through the secondary crusher installed in the lower part of the storage tank, and the raw material fixed quantity storage A mixing and drying container equipped with a stirrer equipped with a mixing type stirring arm bladed stirrer that is partially dried by supplying and distributing combustion exhaust gas to the crushed hydrous plant waste material supplied from the tank, and The dried crushed mushroom waste fungus bed vertical type supplied from the mixing and drying container is conveyed by a conveyor with blades, passed through a rotary valve, and the dried plant waste A quantitative supply device capable of supplying a large amount of fuel, a combustion furnace using the crushed material of the dried plant waste, a once-through boiler device for generating steam and hot water by a multi-tube flow heat exchanger using combustion gas, This is a hot water / steam generator using a vegetable waste fuel comprising a steam generator via a water separator.

The raw material fixed amount storage tank transports 50% by weight or more of water-containing vegetable waste material from the supply tank by a belt coveyor, and crushes about 2 to 50 mm from the block shape with a rotary roll crusher at the top of the storage tank. 2-10 screws that are crushed into a product, supplied to a storage tank having a diameter of 1000-3000 mm and a height of 2000-5000 mm, stored in a certain amount, and the fuel material is installed in the lower part of the storage tank After being subjected to secondary crushing into particles of 0.5 to 30 mm by a rotary roll conveyor, the belt is carried out by a belt conveyor and air conveyance.

Mixing and drying containers that can dry and agitate plant waste materials containing 50% by weight or more of water by rotating the stirring blade arm are cylindrical containers with a length of 2000 to 5000 mm and a diameter of 500 to 1000 mmφ. A flue located in the vicinity of the raw material introduction port by introducing the flue gas discharged from the combustion furnace section from the raw material crushed by the rotary roller and screw conveyor in the storage tank from the vicinity of the dry plant waste material take-out port in the container Combustion exhaust gas having a temperature of 200 to 350 ° C. is circulated in the mixing and drying vessel so as to be discharged from the gas section, and the waste fungus bed body can be dried to a moisture content of 10 to 20% by weight. It has a stirring function so that it can supply hot air and fluidly and completely stir the crushed material of vegetable waste with a particle size in the range of 0.1-30 mm in the container. Pairaru attach the stirrer arm blade.

While supplying a certain amount of stored plant waste, the waste bacterial bed mass was primarily coarsely crushed, and then secondary powdered by a high-speed rotary pulverizer with a cutter bar. Before passing into the next combustor from the mixed drying container that has undergone further partial drying treatment through the raw material fixed amount storage tank, the conveyor conveyor unit with a pulverizer transports the dried plant waste material raw material with horizontal blades The block portion is crushed by a rotary rotary bubble so that it can be quantitatively supplied into the combustion furnace.

A combustion furnace main body used as a combustion raw material by supplying a crushed material of partially dried plant waste material drop-wise from the upper part of the firing furnace has a vertical cylindrical shape with an inner size of 1000 to 3000 mm and an outer size of 1500 to 4000 mm. The height is 1500 to 4000 mm, the cylindrical part is used as a combustion part, and the plant waste material is partially dried from the upper part of the vertical cylindrical combustion part and placed in a square of 500 to 2000 mm in length and width placed on the bottom. A grid-like plate is installed, combustion occurs in the plate, and the combustion soot is burned down naturally and accumulated at the bottom, which can be removed as appropriate, to improve combustion efficiency. In order to increase the combustion efficiency in order to be able to supply dry fuel and air from the air nozzle in a controlled manner, the fuel is raised in a spiral shape along the inner wall along with the air flow. Vertical direction of the combustion section 4-10 air inlets are installed, air nozzles are installed at 4-8 points at each height below the fuel inlet, and the air wind speed is 50 m / sec-100 m / sec. Then, the nozzle direction is set at an angle of 15 to 35 ° with respect to the center point, and two or three air blowing nozzles are provided directly below the fuel inlet for agitation with fuel air, and the nozzle direction is the center. It is attached at a right angle to the point.

The tray of the grid plate of the combustion unit is made of ceramic, is a square having a size of 500 to 2000 mm, and has a grid shape or a mesh shape with a gap width of 5 to 10 mm, and is supplied onto the tray. Air from an air nozzle is supplied at 1000 to 5000 L (air) / kg (fuel) with respect to the dry fuel of the vegetable waste material so that the combustion soot can be dropped from the tray.

The hot water generating once-through boiler located in the upper part 1000-2000 mm of the cylindrical combustion part is a multi-pipe heat exchange by installing a pipe of 30-100 mmφ in a vertical multi-tube and circulating the combustion gas hot air. This is a heating boiler function that heats at a temperature of 500 ° C. or more and converts the water supplied from the water tank into steam hot water and generates water vapor through a steam separator, and the heat exchange The exhaust gas is circulated through the mixing and drying container, collected in a multi-cyclone with a heat exchanger in the exhaust gas processing unit, and discharged from the chimney.

The heat exchange steam generation of the once-through boiler unit is performed by arranging 10 to 30 metal pipes with a diameter of 30 to 100 mm in longitudinal parallel around the circumference of the boiler in order to exchange heat efficiently by combustion gas. It is attached to 20 to 60% in space volume, and water is supplied to the inside of the pipe exchanger at a flow rate of 1 to 20 m ³ / min to generate water vapor of 100 to 200 ° C. and water vapor of 25 to 500 m ^3. A steam generator using plant waste material fuel according to any one of claims 1 to 6.

The plant waste material is obtained by crushing thinned wood, roadside tree pruning material, house waste material, bamboo material, mushroom waste fungus bed to 1 to 100 mm, and contains 50% or more of water.

Raw materials such as plant waste materials having a water content of 50% or more were effectively used as a biomass raw material by drying treatment, and the above-mentioned waste could be effectively used by grinding and crushing raw materials that were difficult to dry. Plant waste has been dried in a combustion device as a high water content biomass material, and is now in a state where it can be used as fuel.

The method of using heat generated by steam of woody biomass of the present invention has the advantage that wood can be dried extremely economically before combustion by effectively using the thermal energy generated by burning biomass fuel of hydrous plant waste. . In particular, the steam generation heat utilization method of the present invention is characterized in that the biomass fuel of the hydrated plant waste material is made into a fuel that can be dried in the combustion furnace while being controlled at an ideal high temperature suitable for combustion.

The heat generation method uses the heat energy that burns high-moisture plant wastes to heat water and air, and supplies the resulting steam and hot air to the wood drying silo to dry the wood. Heated hot water and water vapor can be supplied to the greenhouse. In this way, heat utilization methods such as steam generation are highly ideal for use as a high-moisture vegetable waste material as a fuel while adjusting the drying temperature of the high-moisture vegetable waste material fuel in the silo while utilizing hot air. Can be dried, making it possible as an ultra-low cost wood dry fuel, 1/3 to 1/6 of conventional steam-type wood dry.

The method of using heat generated from water vapor in high-moisture plant waste is ideal for a greenhouse where plants are grown using only the heat energy from the circulation of heat sources generated when burning high-water plant waste. It has the feature that it can be heated in an environment. In particular, this method heats greenhouses and greenhouses by partially drying high-moisture plant wastes and then burning them in a combustion furnace to supply heat energy along with the supply of hot water. In addition, it can be cultivated while supplying a heat source for plant growth.

It is composed of the above, and as a fuel obtained by pulverizing high-water-containing vegetable waste, according to this, the heat source is generated and the heat source circulation mechanism and the exhaust heat recovery mechanism are provided. Can save resources and promote pollution-free. Since the resources can be recovered as fuel, the industrial utility value is great. A heat source generated using water vapor or the like can be used as a heat source for greenhouse heating in an agricultural greenhouse or the like.

1 is an overall view of a water vapor generator using plant waste fuel. The figure of the raw material fixed quantity storage tank with a grinder which grind | pulverizes and stores raw material lump of raw material. The mixing-drying container figure which attaches the stirring tool with a stirring arm blade | wing, and is equipped with the stirrer. Diagram of combustion section and heat exchange section of combustion furnace body using plant waste fuel Figure of heat exchange steam generation part with hot air by combustion

Next, an embodiment of the present invention will be described. Fig. 1 shows an overall view of a water vapor generator using plant waste fuel, Fig. 2 is a diagram of a raw material quantitative storage tank with a pulverizer for pulverizing and storing raw material waste lump, and Fig. 3 is a scraping with a stirring arm blade. Fig. 4 is a diagram of a mixing and drying vessel equipped with a mixer and equipped with a stirrer. Fig. 4 is a diagram of a combustion section and a heat exchange section of a combustion furnace body using vegetable waste fuel. Fig. 5 is a heat exchange with hot air by combustion. The figure of the formula water vapor generation part was shown.
Put the specified raw materials in the supply tank into the raw material fixed quantity storage tank with a pulverizer, and continue to stir and mix in the mixing and drying container for a predetermined time to pulverize and dry the mass of the fungus bed and put it in the combustion furnace. It is thrown in.

In a steam generator using a dry-combustion process using water-containing biomass, which is a thinned wood containing 60% by weight of water, crushed to 5-20 mm, the thinned wood is belted from the supply tank. Raw material quantified storage consisting of a belt conveyor that is crushed in a primary crusher by a conveyor, supplied to a storage tank, and transported to the next process through a secondary crusher installed in the lower part of the storage tank. It is equipped with a stirrer equipped with a mixing stirrer with a mixing type stirring arm blade that is partially dried by supplying and distributing combustion exhaust gas to the crushed water-containing thinned wood supplied from the raw material quantitative storage tank. And the dried and crushed thinned wood vertical type supplied from the mixed drying container is transported by a bladed conveyor, and is dried through a rotary valve. A fixed-quantity feeder that can quantitatively supply fuel for thinned wood, a combustion furnace that uses the crushed material of the dried thinned wood, a once-through boiler that generates steam and hot water by a multi-tube circulation heat exchanger using combustion gas, It is a hot water / steam generator using thinned wood fuel consisting of hot water and a steam generator via a steam separator.

The raw material fixed quantity storage tank transports 60% by weight of water-containing thinned material from the supply tank by a belt conveyor, supplies it to a storage tank with a diameter of 1500 mm and a height of 3000 mm, stores a certain amount, and stores the fuel raw material in the storage tank After being crushed into particles of 0.5 to 20 mm by four screw-type rotary roll conveyors installed at the lower part of the belt, they were carried out by a belt conveyor and air conveyance.

A mixing and drying container that can dry and agitate 60% by weight of water-containing thinned wood by rotating the stirring blade arm is a cylindrical container with a length of 5000mm and a diameter of 500mmφ. And the raw material crushed by the screw conveyor, the flue gas discharged in the combustion furnace part is introduced from the vicinity of the dry thinned wood take-out port in the container and discharged from the flue gas part near the raw material inlet Then, the combustion exhaust gas having a temperature of 300 to 350 ° C. is circulated in the mixing and drying container, and hot air of the combustion exhaust gas is supplied so that the thinned wood can be dried to a moisture content of 35% by weight. A spiral stirring arm blade having a stirring function was attached so that a thinned piece of thinned wood having a particle size in the range of 5 to 20 mm could be fluidly and uniformly stirred.

While supplying a certain amount of stored thinned wood, the thinned wood lump was first coarsely crushed and then turned into secondary powder by a high-speed rotary grinder with a cutter bar. Before passing through the storage tank to the next combustor from the mixed drying container that has been further partially dried, the conveyor unit with pulverizer transports the dried thinned wood raw material by a conveyor conveyor with horizontal blades. The block shape was pulverized by a rotary rotary bubble so that it could be quantitatively supplied into the combustion furnace.

The combustion furnace main body used as a combustion raw material by supplying crushed material of partially dried thinned wood drop-wise from the top of the firing furnace is a vertical cylinder with an inner dimension of 1500 mm, an outer dimension of 2000 mm, and a height of 3500 mm. , Using the cylindrical part as the combustion part, throwing in the partially dried thinned wood from the top of the vertical cylindrical combustion part, and installing a square grid board plate of 900 mm in length and width placed on the bottom, Combustion occurs in the pan, and burned soot of burned ash falls naturally, accumulates at the bottom, and can be removed as appropriate. From the dry fuel and air nozzles of thinned wood to increase combustion efficiency In order to increase the combustion efficiency in order to allow the air to be supplied in a controlled manner, the fuel is raised along the inner wall along with the air flow in a spiral shape, so that 50 air inlets in the longitudinal direction of the cylindrical combustion portion Of the fuel inlet At each height, 300 nozzles are installed, and the air velocity is 50 m / sec, the nozzle direction is at an angle of 25 ° with respect to the center point, and directly below the fuel inlet. In order to agitate the fuel with air, three air blowing nozzles were attached at right angles to the center point.

The tray of the grid-like disk of the combustion part is made of stainless steel, is a square with a size of 900 mm, has a grid shape with a gap width of 50 mm, and is used for dry fuel of thinned wood supplied on the tray. Air from the air nozzle was supplied to allow the combustion soot to fall from the pan.

The hot water generating once-through boiler located at the upper 1500 mm of the cylindrical combustion section is a multi-pipe heat exchange system in which a 60 mmφ pipe is installed in a vertical multi-tube and the combustion gas hot air is circulated at 800 ° C. It is a heating boiler function that heats at the above temperature and converts water supplied from the water tank into steam hot water and generates water vapor through a steam separator, and the heat exchanged exhaust gas is It was made to distribute | circulate to a mixing drying container, and dust collection processing was carried out in the multicyclone with a heat exchanger in an exhaust-gas treatment part, and it discharged with the chimney.

The heat exchange steam generation in the once-through boiler unit is performed by arranging 20 metal pipes with a diameter of 60 mm in a longitudinally parallel manner around the circumference of the boiler in order to efficiently exchange heat with the combustion gas. In the pipe exchanger, water was supplied at a flow rate of 0.8 m ³ / hour to generate 180 ° C. water vapor.

In a steam generator using a drying-combustion process using water-containing biomass, which is a house waste containing 55% by weight of water, crushed into 5 to 20 mm, waste water from the supply tank is belted from the supply tank. Raw material quantified storage consisting of a belt conveyor that is crushed in a primary crusher by a conveyor, supplied to a storage tank, and transported to the next process through a secondary crusher installed in the lower part of the storage tank. It is equipped with an agitator equipped with a mixing stirrer with a mixing type stirring arm blade that is partially dried by supplying and distributing combustion exhaust gas to the crushed water-containing house waste material supplied from the raw material quantitative storage tank. The dried and crushed residential waste vertical type supplied from the mixed and dried container is conveyed by a bladed conveyor, through a rotary valve, Quantitative supply machine that can quantitatively supply dry house waste fuel, combustion furnace using crushed material of the dried house waste material, and once-through boiler that generates steam and hot water by a multi-tube circulation heat exchanger using combustion gas And a hot water / steam generator using a residential waste fuel comprising a hot water and a steam generator via an air / water separator.

The fixed material storage tank transports 55% by weight of water-containing housing waste from the supply tank by a belt conveyor and supplies it to a storage tank with a diameter of 1500 mm and a height of 3000 mm to store a certain amount of the fuel material in the storage tank. After being crushed into particles of 0.5 to 20 mm by four screw-type rotary roll conveyors installed at the lower part of the belt, they were carried out by a belt conveyor and air conveyance.

The mixing and drying container that can dry and agitate 55% by weight of water-containing housing waste by rotating the stirring blade arm is a cylindrical container with a length of 5000mm and a diameter of 500mmφ. And the raw material crushed by the screw conveyor, the combustion exhaust gas discharged in the combustion furnace part is introduced from the vicinity of the dry housing waste take-out port in the container so that it is discharged from the flue gas part near the raw material introduction port In addition, the flue gas having a temperature of 300 to 350 ° C. is circulated in the mixing and drying container, and hot air of the flue gas is supplied so that the housing waste material can be dried to a moisture content of 30% by weight. A spiral stirring arm blade with a stirring function is installed so that a crushed house waste with a particle size in the range of 5 to 30 mm can be mixed thoroughly and fluidly. .

While supplying a certain amount of stored housing waste, the housing waste material lump part is first coarsely crushed and then secondarily pulverized by a high-speed rotary pulverizer with a cutter bar. Before passing into the next combustor from the mixed drying container that has been further partially dried through the storage tank, the conveyor unit with pulverizer transports the dried house waste material by a conveyor conveyor with horizontal blades. The block shape was pulverized by a rotary rotary bubble so that it could be quantitatively supplied into the combustion furnace.

The combustion furnace main body used as a combustion raw material by supplying the crushed material of partially dried housing waste from the upper part of the firing furnace is a vertical cylindrical shape with an inner size of 1500 mm, an outer size of 2000 mm, and a height of 3500 mm. , Using the cylindrical part as the combustion part, throwing in the partially dried housing waste from the top of the vertical cylindrical combustion part, and installing a square grid board plate of 900 mm in length and width placed on the bottom, Combustion occurs in the pan, and the burned soot of burned ash falls naturally, accumulates at the bottom, and can be removed as appropriate. From the dry fuel and air nozzles of house waste to increase combustion efficiency In order to increase the combustion efficiency in order to allow the air to be supplied in a controlled manner, the fuel is raised along the inner wall along with the air flow in a spiral shape, so that 50 air inlets in the longitudinal direction of the cylindrical combustion portion To install fuel. At each lower position of the mouth, air blowing nozzles are attached at 300 locations, the air wind speed is 50 m / sec, the nozzle direction is at an angle of 25 ° with respect to the center point, and the fuel inlet Immediately below, three air blowing nozzles were attached for fuel agitation and the nozzle direction was perpendicular to the center point.

The tray of the grid-like disk of the combustion part is made of stainless steel, is a square with a size of 900 mm, has a grid shape with a gap width of 50 mm, and is used for dry fuel of thinned wood supplied on the tray. Air from the air nozzle was supplied to allow the combustion soot to fall from the pan.

The hot water generating once-through boiler located at the upper 1500 mm of the cylindrical combustion section is a multi-pipe heat exchange system in which a 60 mmφ pipe is installed in a vertical multi-tube and the combustion gas hot air is circulated at 800 ° C. It is a heating boiler function that heats at the above temperature and converts water supplied from the water tank into steam hot water and generates water vapor through a steam separator, and the heat exchanged exhaust gas is It was made to distribute | circulate to a mixing drying container, and dust collection processing was carried out in the multicyclone with a heat exchanger in an exhaust-gas treatment part, and it discharged with the chimney.

The heat exchange steam generation in the once-through boiler unit is performed by arranging 20 metal pipes with a diameter of 60 mm in a longitudinally parallel manner around the circumference of the boiler in order to efficiently exchange heat with the combustion gas. In the pipe exchanger, water was supplied at a flow rate of 0.9 m ³ / hour to generate 170 ° C. water vapor.

DESCRIPTION OF SYMBOLS 1 Plant waste 2 Quantitative raw material storage tank with a pulverizer 3 Rotating roller with blades 4 Mixing and drying container 5 Steam generator 6 Supply tank 7 Stirring tool 8 Cyclone 9 Cross-flow boiler 10 Spiral screw type mixing stirring blade 11 Screw conveyor 12 Fuel blower 13 Quantitative feeder 14 Spiral screw shaft 15 Crusher 16 Combustion furnace 17 Multi-tube flow heat exchanger 18 Steam / water separator 19 Steam pipe 20 Rotary valve 21 Rotating motor 22 Heat retaining lid 23 Combustion blower 24 Dust recovery 25 6-axis screw Conveyor 26 Input 27 Discharge 28 Belt conveyor 29 Porous grate 30 Dried product takeout container 31 Water vapor 32 Flame / fire bed 33 Inspection port 34 Level meter 35 Exhaust gas / combustion exhaust gas 36 Steam 37 Flue 38 Water supply tank 39 Safety valve 40 Chimney 41 Powder flow state 42 Complete Mixture stirred 43 air blow nozzle 44 ash

Claims (9)

In a steam generator by drying-combustion treatment using hydrous biomass, which is botanical waste material containing 50% by weight or more of water, the hydrous plant waste material is crushed from a supply tank by a belt conveyor in a primary crusher. Then, the raw material fixed quantity storage tank which consists of a belt core which is supplied to the storage tank and transports the fuel raw material to the next process through the secondary crusher installed in the lower part of the storage tank, and the raw material fixed quantity storage A mixing and drying container equipped with a stirrer equipped with a mixing type stirring arm bladed stirrer that is partially dried by supplying and distributing combustion exhaust gas to the crushed hydrous plant waste material supplied from the tank, and The dried crushed mushroom waste fungus bed vertical type supplied from the mixing and drying container is conveyed by a conveyor with blades, passed through a rotary valve, and the dried plant waste A quantitative supply device capable of supplying a large amount of fuel, a combustion furnace using the crushed material of the dried plant waste, a once-through boiler device for generating steam and hot water by a multi-tube flow heat exchanger using combustion gas, A hot water / steam generator using vegetable waste fuel, characterized by comprising a steam generator via a water separator. The raw material fixed amount storage tank transports 50% by weight or more of water-containing vegetable waste material from the supply tank by a belt coveyor, and crushes about 2 to 50 mm from the block shape with a rotary roll crusher at the top of the storage tank. 2-10 screws that are crushed into a product, supplied to a storage tank having a diameter of 1000-3000 mm and a height of 2000-5000 mm, stored in a certain amount, and the fuel material is installed in the lower part of the storage tank The vegetable waste material fuel according to claim 1, which is subjected to secondary crushing into particles of 0.5 to 30 mm by a rotary roll conveyor and is carried out by a belt conveyor and air conveyance. Used hot water / steam generator. Mixing and drying containers that can dry and agitate plant waste materials containing 50% by weight or more of water by rotating the stirring blade arm are cylindrical containers with a length of 2000 to 5000 mm and a diameter of 500 to 1000 mmφ. A flue located in the vicinity of the raw material introduction port by introducing the flue gas discharged from the combustion furnace section from the raw material crushed by the rotary roller and screw conveyor in the storage tank from the vicinity of the dry plant waste material take-out port in the container Combustion exhaust gas having a temperature of 200 to 350 ° C. is circulated in the mixing and drying vessel so as to be discharged from the gas section, and the waste fungus bed body can be dried to a moisture content of 10 to 20% by weight. It has a stirring function so that it can supply hot air and fluidly and completely stir the crushed material of vegetable waste with a particle size in the range of 0.1-30 mm in the container. Pairaru hydronic water vapor generating apparatus using vegetable waste fuels according to stir attach the arm blade in claim 1, or claim 2, characterized in. While supplying a certain amount of stored plant waste, the waste bacterial bed mass was primarily coarsely crushed, and then secondary powdered by a high-speed rotary pulverizer with a cutter bar. Before passing into the next combustor from the mixed drying container that has undergone further partial drying treatment through the raw material fixed amount storage tank, the conveyor conveyor unit with a pulverizer transports the dried plant waste material raw material with horizontal blades The plant property according to any one of claims 1 to 3, wherein the block portion is pulverized by a rotary rotary bubble and can be quantitatively supplied into the combustion furnace. Hot water / steam generator using waste fuel. A combustion furnace main body used as a combustion raw material by supplying a crushed material of partially dried vegetable waste material from the top of the firing furnace is a vertical cylindrical shape with an inner size of 1000 mm to 3000 mm and an outer size of 1500 mm to 4000 mm. The height is 1500 mm to 4000 mm, the cylindrical part is used as a combustion part, the plant waste material is partially dried from the upper part of the vertical cylindrical combustion part, and a square of 500 to 2000 mm in length and width placed on the bottom. A grid-like plate is installed, combustion occurs in the plate, and the combustion soot is burned down naturally and accumulated at the bottom, which can be removed as appropriate, to improve combustion efficiency. In order to increase the combustion efficiency in order to be able to supply dry fuel and air from the air nozzle in a controlled manner, the fuel is raised in a spiral shape along the inner wall along with the air flow. Burning 4 to 10 air blowing ports are installed in the vertical direction of the section, and air blowing nozzles are attached to 4 to 8 positions at respective heights below the fuel inlet, and the air wind speed is 50 m / Second to 100 m / sec, the nozzle direction is set to an angle of 15 to 35 ° with respect to the center point, and two or three air blowing nozzles are provided immediately below the fuel inlet for agitation with fuel air. The hot water / steam generator using the vegetable waste material fuel according to any one of claims 1 to 4, wherein the direction of the nozzle is attached at right angles to the center point. The grid-shaped disk tray of the combustion section is made of ceramic and has a square size of 500 mm to 2000 mm and a grid width of 5 mm to 10 mm or a mesh shape, and is supplied onto the tray. The air from the air nozzle is supplied at 1000 L to 5000 L (air) / kg (fuel) with respect to the dry fuel of the vegetable waste material so that the combustion soot can be dropped from the tray. A warm water / steam generator using the plant waste material fuel according to claim 5. The hot water generating once-through boiler located in the upper part 1000 to 2000 mm of the cylindrical combustion part is a multi-pipe heat exchange by installing a pipe of 30 mm to 100 mmφ in a vertical multi-pipe and circulating the combustion gas hot air. This is a heating boiler function that heats at a temperature of 500 ° C. or more and converts the water supplied from the water tank into steam hot water and generates water vapor through a steam separator, and the heat exchange The exhaust gas is circulated through the mixing and drying container, collected in a multi-cyclone with a heat exchanger in the exhaust gas processing unit, and discharged by a chimney. A hot water / steam generator using the vegetable waste fuel described in 1. The heat exchange steam generation of the once-through boiler unit is performed by arranging 10 to 30 metal pipes with a diameter of 30 to 100 mm in longitudinal parallel around the circumference of the boiler in order to exchange heat efficiently by combustion gas. It is attached to 20 to 60% in space volume, and water is supplied to the inside of the pipe exchanger at a flow rate of 1 to 20 m ³ / min to generate water vapor of 100 to 200 ° C. and water vapor of 25 to 500 m ^3. A hot water / steam generator using the vegetable waste fuel according to any one of claims 1 to 6. Plant waste is a thinned wood, roadside tree pruning material, house waste, bamboo, mushroom waste fungus bed crushed to 1 to 100 mm, and contains 50% or more of moisture. A hot water / steam generator using plant waste material fuel according to any one of claims 1 to 8.

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