JP2009121800A - Eco-boiler exclusive to biomass fuel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a generally-preferred and easily spreadable boiler device useful for protecting a natural environment, capable of recycling even a residue, simple in maneuvering operation, and providing safety and easy mind, in a high capacity boiler capable of reducing CO<SB>2</SB>and capable of reducing fuel cost, while completely eliminating fossil fuel. <P>SOLUTION: This biomass exclusive eco-boiler device receives auxiliary combustion by a burner by operation of an automatic control device by operating a furnace inside temperature sensor when the combustion effect reduces, and forcibly receives and sucks strong supply air by an exhaust chimney from a forced air supply port of the principle of a bamboo blowpipe, and causes complete combustion by generating heat convection by the whole combustion furnace, and stabilizes the furnace inside temperature by causing the maximum thermal effect by combustion, and continuously causes the complete combustion by eliminating generation of sludge. The residue generated according to this can be automatically discharged to an external part of the boiler. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

The present invention is based on a boiler exclusively for biomass fuel. The angle is input from the input work, and other than the angle material is composed of an automatic control device from refueling to auxiliary combustion and residue removal, and CO ₂ can be reduced and fuel cost can be reduced. In addition to steam boilers, hot water boilers and sensors, automatic control steam and hot water generating heat exchangers, circulation devices and radiators and sterilization of direct use of generated steam, as well as boiler devices using hot air heaters by exhaust .

Conventional heat sources of boilers are mainly A heavy oil, kerosene and gas or electricity, and steam, hot water boilers and steam are used mainly for steam, hot water boilers and hot air boilers, and heating, steaming and sterilization are performed.
The prior art in the field to which the invention belongs is described.
JP 2007-107757 A JP 2005-265300 A JP 2005-265299 A JP 2005-265298 A JP 2005-265297 A JP 2005-195237 A Japanese Patent Laid-Open No. 06-011101

However, when mineral fuel is used as the heat source, the operation is safe and simple. However, the environmental pollution caused by CO ₂ emissions and the high cost of fuel consumption cannot be solved. Asked. However, repeated attempts have been made to repeatedly heat the water with a heating device to constantly vaporize it, or to stabilize the internal temperature of the combustion furnace, which is the source of hot water or hot air, and to continuously burn it. Oga powder, wood, similar chip materials, carbonized materials, etc. are not 100% combustible, and the combustion effect decreases drastically over time, and eventually the scale adheres to the inside of the combustion furnace, and sludge is generated during combustion. Occurred and combustion was interrupted.

  In general, when an organic material burns, it is affected by the moisture content of the material used as fuel and impurities such as soil, generating scale and sludge inside the furnace, preventing combustion. Residue elimination is not possible during continuous combustion, and it is not possible to solve the means to prevent it from occurring. Residue treatment inside the combustion furnace during continuous operation is extremely difficult and there is no solution, and the organic combustion boiler is not completed. Many in the industry abandoned and reached today. Although the combustion furnace can supply oxygen, the internal temperature of the combustion furnace is high, so the equipment is severely damaged, and it is difficult to install combustion-promoting equipment. Fuel sawdust, wood, homogeneous chips and carbonized materials It is difficult to devise a method to continuously burn the charcoal powder material and continuously extract the maximum calorie. The sludge is generated in the combustion furnace, the scale adheres and the wood ash residue including the sludge is discharged from the combustion furnace. Have drawbacks, and we have not been able to find a decisive condition to solve them.

The problem that the problem is trying to solve

In order to reduce the CO ₂ and the fuel cost due to such conventional problems and the mineral fuel, the present invention eliminates the mineral fuel in particular, completely burns the biomass fuel, and produces the garbage carbonized material and the building waste material. becomes like and fuel applying agricultural waste, soot, eliminates the discharge of malodorous helps ensure safety and environmental protection work to reduce dioxin and CO ₂ of the boiler unit, it can reduce fuel costs, the future It is also popular for agricultural greenhouse cultivation and can be widely used. In the case of an eco-boiler dedicated to biomass fuel, ash, which is the residue to be disposed of, can be recycled as a neutralizing agent and fertilizer for acidic soil, and there is no worry about waste disposal. Provide a safe, secure and easy-to-use boiler.

Means for solving the problem

The problem to be solved is to increase the combustion effect and completely burn any fuel. In the initial combustion, the fuel is ignited by an auxiliary burner using ethanol and edible waste oil as fuel. This is an automatic control boiler that can burn continuously and completely at high temperatures. It uses biomass wood, homogenous chip material, carbonized material and organic matter, and carbonized material as the main fuel, and fuels other than slabs are stored in their storage tanks. This is a complete combustion boiler that consists of an automatic control device that is received by a hopper by automatic control and is directly supplied to a combustion furnace by a screw conveyor, and performs forced air supply by the fire-blown bamboo principle. For this reason, conventional steam steam generators and hot water boilers that reduce CO ₂ and reduce fuel costs are intended for direct use of steam such as sterilization, as well as self-controlled steam with sensors and hot water circulation devices and radiators. It was solved.

The invention's effect

  In addition, in order to increase the combustion effect and completely burn any fuel, in order to achieve the purpose of steam generation and water heating, square wood, similar chip material, and carbonized material that become biomass fuel by installing sensors are used. At the same time, it can be automatically supplied directly to the combustion furnace by a screw conveyor and eliminates the generation of sludge, so the auxiliary combustion device installed inside the double combustion furnace and the fire-blown bamboo principle installed on the floor and walls inside the furnace The combustion temperature is increased at a stroke by installing a pressurized forced air inlet by means of suction, sucked by the exhaust chimney, and completely burned in the entire combustion furnace, so that the temperature inside the combustion furnace is continuously maintained at 700 ° C to 800 ° C. Adherence and sludge generation can be prevented, and it is possible to solve this problem by using steam and hot water continuously as a means, and in addition to these automatic control systems. In addition, since the exhaust does not contain harmful substances, it is equipped with a structure that can install a hot air outlet for secondary use of heat by installing a cyclone device in the exhaust stack, and a multi-type and versatile biomass fuel dedicated eco-boiler Made possible.

  However, in order to maximize the combustion effect during combustion and to ensure the maximum amount of heat, the biomass fuel has a moisture content of about 30%, and the carbonized fuel has a moisture content of about 15%. Combustion can be continued and high calorie energy can be generated. However, although the moisture content may exceed the above, by continuing combustion, the temperature inside the combustion furnace increases and becomes stable, and the temperature inside the combustion furnace does not drop significantly. In the combustion furnace that has received the supply of the mixed defective fuel, the temperature inside the combustion furnace may temporarily drop to about 300 ° C. to 500 ° C. When the temperature inside the combustion furnace drops, The continuous combustion starts at a high temperature by the operation of the auxiliary combustion burner by automatic control and the forced air supply by the fire-blown bamboo principle, and the temperature of the combustion furnace automatically rises to 700 ° C to 800 ° C for continuous complete combustion. The thermal efficiency of the boiler could be increased.

As described above, according to the invented exclusive eco-boiler for biomass fuel, in the invention according to claim 1, by eliminating the mineral fuel, CO ₂ can be reduced and the fuel cost can be reduced. The most demanding conditions are most effective, can be used widely, and are generally preferred and widely spread.

  In FIG. 1, the biomass fuel and the carbonized material are stored in the respective storage tanks by the apparatus of the present invention. The fuel stored in the tank is automatically controlled and moved to the hopper. When the fuel entered the hopper is directly supplied to the combustion furnace, the sensor in the combustion furnace and the inverter are connected, the rotation of the screw is changed, the fuel is automatically supplied, and the amount of heat can be increased or decreased. The wood-based chip material and the carbonized material can be freely mixed and replenished. Since high heat inside the combustion furnace does not enter the fuel supply path, a cyclone heat shielding plate is installed, and heat is further cut off at the upper part of the fuel supply path by a water-cooled fuel quantitative supply device. However, when a high temperature abnormality occurs in the fuel supply path and the fuel is ignited, the alarm device is activated by the abnormality detection sensor, the fuel supply is automatically stopped, and the water-cooled fuel metering device is used so that the fuel is not ignited. It is the whole figure which showed the fuel supply, the heat exchanger, utilization of heat, and the implementation method of the return water.

In the second embodiment of the present invention, the cross-sectional structure of the boiler combustion furnace is a double structure of an iron part air supply tank and a caster part, the cross-sectional structure is composed of two layers, and there is a residue treatment device at the lower part to eliminate residues. Residue removal groove and screw conveyor are installed, the combustion floor surface and the combustion furnace wall surface have a double structure, an air layer is provided, a fire-blown bamboo type forced air inlet is provided, and a heat exchanger at the top And an exhaust chimney using a cyclone heat shield device is provided in the heat exchanger exhaust. It is divided into a hot air flow path installed in the caster part in the furnace and an air flow generating part by heat convection, and a water reservoir is provided in the lower part of the heat exchanger and a water pipe for heat exchange in the middle of the lower and upper kettles in FIG. Is installed vertically, and a steam reservoir and a hot water reservoir are provided in the upper part, and are sent out by automatic control.
A magnetic water treatment device is installed in the water introduction pipe line from the outside of the boiler and the steam and warm water return pipe line, and a commercially available magnetic water treatment system is used for rust prevention and scaling control inside the pipe line. Device.

Examples 1 and 2 of the present invention are fully satisfied. However, inside the furnace, by automatic control, trapping combustion is performed by an ignition burner using ethanol and edible waste oil as fuel, and forced combustion of the fire-blown bamboo principle can be received and complete combustion is achieved.
For the maintenance of the rust treatment and scale removal treatment, the inside of the circulation pipeline is equipped with a TV camera for in-pipe inspection, an entry port 50A for a high-pressure washing nozzle, an exhaust outlet, and a drain cock 50A or more. A pipe using SUS material is provided for emergency.

  Therefore, steam and hot water whose temperature has been reduced by using heat dissipation as energy is returned and stored in a temporary hot water storage tank on the side of the boiler, which can be heated efficiently and in a short time to stabilize the temperature of the water and increase the efficiency. . The piping system and the like includes a water stop ball valve necessary for repair, a removable line pump for moving hot water, and a radiator.

  The boiler according to the present invention is started by automatically igniting and starting combustion by turning on the operation switch of the operation panel. At that time, the automatic fuel supply control device operates and is supplied from the hopper. The biomass fuel carried in from the outside is sent directly from the storage hopper to the boiler combustion furnace shown in FIG. 2 by the screw conveyor shown in FIGS. 1, 3, and 4, and is effectively heated by the ignition burner shown in FIG. Burn with. Therefore, when the steam and heated hot water reach the set temperature of the control device, the line pump automatically operates, the hot water for steam use and heating use is circulated and dissipated by the radiator, and the heat dissipation ends. Steam or hot water is returned to the hot water return tank shown in FIG. 1, and is heated and repeatedly sent out.

  The above-described biomass fuel-dedicated eco-boiler of the present invention using the biomass fuel chip material fuel and the same carbonized material fuel prevents incomplete combustion due to incomplete combustion by a biomass fuel dedicated ignition burner and forced air supply (not shown). Then, the continuous operation by complete combustion is continued to supply stable steam or hot water.

  In FIG. 3, the residue that is burned and becomes wood ash is discharged from the combustion furnace by the action of the ash removed by automatic control falling into the removal groove, and further discharged from the boiler body to the outside by the screw conveyor. Residual wood ash is used for recycling and serves as a neutralizer and fertilizer for acidic soil, and no industrial waste is discharged.

  Due to the temperature rise inside the furnace, FIG. 9 shows that the hot water is steamed into the steam and hot water pool water tank installed in the upper kettle, the vertically arranged water pipe 50A, and the steam and hot water pool installed at the top. Then, the steam is sent as pressurized steam, and the hot water is sent out by a circulation line pump, and the heat is dissipated by a radiator to use the heat for each use.

  The fire extinguishing means for stopping the combustion furnace sets the switch on the operation panel to OF, so that the supply of air and fuel is stopped and the fire is automatically stopped and extinguished. The next ignition after extinguishing the fire can be ignited normally and automatic operation is possible even if there is residue.

  In the eco-boiler for biomass fuel of the present invention, the can body was protected and kept warm using rock wool, and the external makeup was racked using an iron plate that was baked. Appearance is a square and round vertical synthetic boiler or a silver coat finish without makeup.

  Further, in claim 2, the fuel supply is automatically supplied by a screw conveyor, and the moisture content of biomass fuel and the carbonized fuel of about 30% is forcibly supplied with oxygen to increase the combustion effect and increase the thermal power. There is an advantage that calories are increased by complete combustion. Ignition and fire extinguishing of this boiler is based on an automatic control device, it works effectively by turning on the switch, and all can reduce the labor cost by the automatic control method. In a state where remote operation is possible, a red light is rotated and displayed together with an alarm, the alarm device is activated and automatically stops.

  Furthermore, in the invention according to claim 2, the biomass fuel chip material and the carbonized material are treated in the case where deficiency occurs in the removal and combustion of wood ash which is a residue generated after each fuel is combusted. The auxiliary ignition burner is automatically ignited and the combustion deficiency can be canceled, and the automatic control device can effectively burn continuously.

  In the third aspect of the invention, since the supplied fuel releases the maximum calorie, complete combustion combustion is caused by forced air supply based on the fire-blown bamboo principle, and the temperature inside the combustion furnace is raised from 700 ° C. to 800 ° C. In order to maintain stable and continuous combustion and to efficiently heat the water sent by the circulation pump, the water returned using heat is stored in a temporary storage tank and sent again to the boiler where it is sent inside the heated water pipe. The hot water that is efficiently heated without waste can be used for heat generation by generating steam and hot water by automatic control and repeating the circulation.

  Further, in the invention of claim 4, the water to be heated for controlling scaling composed of water components is magnetized, causing a chemical change in the water, changing red rust to iron dioxide and changing to black rust, calcium When controlling scales due to ingredients, etc., avoid the use of general water softeners, avoid damage to equipment, and increase the effect of reducing running costs.

  The steam generated by this biomass-dedicated eco-boiler can be widely used for sterilization and heating with pressure vessels, etc. It is possible to contribute to the society because it can be used for safe and secure facilities, natural environment protection and fuel cost reduction.

  The whole boiler apparatus is shown.   FIG. 2 is a detailed plan view of a combustion furnace showing a fuel injection port such as a square bar and a complete combustion method.   The residue removal method is shown in the detailed plan view of the residue removal tank.   It is the boiler apparatus elevation which looked at the fuel inlet from the front.   FIG. 2 shows a fuel supply method in which a plane and a heat exchanger and a chimney that are sent from a fuel hopper to the upper part of a combustion furnace by a screw conveyor are arranged. FIG.   Steam and hot water generation and fuel supply methods for combustion furnaces and heat exchangers are shown.   The method of the water pipe and heat passage of a heat exchanger is shown.   The heat exchange method using the upper and lower steam of the heat exchanger, the hot water tank and the lower water tank is shown.   The heat utilization method of the heat exchanger is shown.   The confirmation method inside the combustion furnace is shown.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Combustion furnace 2 ... Heat exchanger 3 ... Fuel hopper
4 ... Ethanol fuel tank 5 ... Edible waste oil fuel tank 6 ... Screw conveyor
7 ... Fuel metering device (with water cooling jacket)
8 ... Combustion burner
DESCRIPTION OF SYMBOLS 9 ... Warm water pipe 10 ... Line pump 11 ... Warm water return tank 12 ... Chimney 13 ... Operation panel and control panel 14 ... Chimney reinforcement angle 15 ... Forced air supply port 16 ... Refractory bricks and casters
17 ... Air tank for air supply 18 ... Residue elimination screw conveyor
19 ... H-shaped steel frame 20 ... Fuel inlet door 21 ... Combustion confirmation window 22 ... Heat exchange water pipe 23 ... Heat passage 24 ... Water supply tank 25 ... For air supply Pressure fan 26 ... Steam, hot water reservoir tank 27 ... Ash (residue) exclusion slit

Claims (4)

It is a boiler that does not use mineral fuel at all, uses only recycled organic fuel, and uses the same carbonized material as a fuel. It has a tank and hopper for storing the fuel, and automatically supplies fuel from the hopper to the boiler. Consisting of a screw conveyor device, the same carbonized fuel can be supplied simultaneously or individually, and equipped with a combustion auxiliary burner fueled with ethanol and edible waste oil, and continuously effectively and completely by automatic ignition and automatic control. It is a steam boiler and hot water boiler that can be burned, and it is a safe and secure eco-friendly boiler equipment for biomass fuel, as well as protecting the natural environment and reducing fuel costs by reducing CO ₂ . The raw material such as slabs and the crushed biomass fuel and the carbides are moved automatically from the fuel storage tank to the hopper, except for slabs, etc., by supplying fuel with a water content of about 30% and a water content of about 15%. By the automatic control apparatus which supplies a biomass fuel and the carbonized material directly to a combustion furnace directly with a screw conveyor.
After the biomass fuel burns, it becomes a very small amount of ash inside the furnace, and the ash residue is removed by an automatic removal device. A device that automatically detects ignition with an auxiliary ignition burner using ethanol or edible waste oil as fuel, and a forced air inlet based on the fire-blown bamboo principle when a temperature drop occurs due to initial combustion or defective combustion The boiler apparatus according to claim 1, wherein the boiler apparatus is a fully automatic combustion control apparatus including an exhaust chimney.   In the initial combustion, the fuel sent to the combustion furnace is ignited by the combustion auxiliary burner using ethanol as the fuel. Forced air supply is received from the surface and the wall surface, and is sucked by the exhaust pipe. As a result, heat convection is automatically caused inside the combustion furnace, and the amount of heat inside the combustion furnace is most effectively increased and continuous complete combustion is performed. The internal temperature of the furnace can be maintained at 700-800 ° C by automatic control, equipped with a heat exchanger that generates steam and hot water, and effectively exchanges heat by complete combustion to generate steam and hot water. The steam and hot water generated by heat exchange in the featured boiler unit dissipates heat through a radiator depending on the application of heat. The steam becomes warm water after being used by heat, and the warm water is sent using a pump. The boiler apparatus according to any one of claims 1 and 2, wherein the hot water that returns with a temperature drop is stored in a return water storage tank and is repeatedly sent out.   Replaced with water softener to prevent water chemical change due to heat inside the heat exchanger internal pipe and pipe line, warm water and steam raw water passed through the magnetic water treatment device with a commercially available magnetic water treatment device Water to reduce the chemical change caused by heating, the iron oxide becomes iron dioxide, rust adhesion and scale control and prevention water treatment method, magnetic device And the natural heat radiator and the warm air heater are comprised, The boiler apparatus as described in any one of Claims 1-3.

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