JPS609204B2 - Rice husk combustion heating device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a heating device that obtains hot air by exchanging heat with combustion gas generated while burning rice husk as fuel.

In recent years, due to the rise in oil prices, the fuel costs included in the production costs of greenhouse horticulture products have become a major burden.In order to stably supply greenhouse vegetables to the market, energy-saving alternatives to petroleum energy are needed. This heater is highly desired.

Taking the above points into consideration, the present invention is a heating device that burns rice husk, which is an agricultural waste, as fuel and exchanges heat with the combustion gas to obtain warm air, which efficiently burns rice husk in a furnace. It is characterized by the fact that it is easy to assemble and disassemble, and does not require a large installation area. below,
The configuration of the present invention will be explained with reference to embodiment diagrams.

An ash removal device 4 with a screw conveyor 3 for discharging combustion ash was installed at the center of the upper part of the base plate 2 at the lower end of the support frame 1 of a suitable height and medium height, and an arbitrary number of air chambers 5 were provided around the outer periphery. A heat insulating cylinder 7 with a large number of holes 4 is inserted into the double sealed furnace body 6, and a first roaster 8 is mounted on the upper end of the heat insulating cylinder 7, and the central height position and the lower end of the heat insulating cylinder 7 are A second rostre 8' and a third rostrum 8[ are supported at the offset position, and a heat insulating body 10 with a hole 9 in the center is supported at a position below the first rostrum 8, and each air chamber 5 on the outer periphery The air intake nozzle 12 is connected to the air intake port 11 from the outside at the lower position of the air chamber, and the air injection nozzle 12 is connected to the inside of the air chamber 5 at the upper position of the air chamber.
is passed through and fixed to protrude above the heat insulating body 10 of the heat insulating cylinder 7, and an ignition port 13 is provided at the upper position on the side of the double-sealed furnace body 6, and the ignition port 13 is passed through to the upper position of the heat insulating cylinder 7. On the other hand, the air port 14 is passed through the inside of the furnace, and the smoke exhaust row 5 is passed through the inside of the furnace on the other side. A funnel cylinder 17 in which a funnel 16 for regulating the flow area is fitted together is connected to a double sealed furnace body 6.
The upper end of the funnel cylinder 17 is removably connected to the lower end of the cylinder 18 provided at the center of the upper end of the support frame 1, and the outer periphery of the double sealed furnace body 6 is attached to the upper end of the support frame 1. A combustor 19 corresponding to each air chamber 5 is installed, and a high pressure hose 20 is connected to the air intake port 11 of each air chamber 5.
A cylindrical hopper 21 and a pressure-adjusting cylindrical hopper 21' having chutes 22, 22' for adjusting rice husk accumulation pressure on the inner surface are installed alternately in the cylinder 18 at the upper end of the support frame 1, or the pressure-adjusting cylindrical hopper 21 is installed alternately. A rice husk storage hopper 23 is installed with silk at every arbitrary number of stages of the cylindrical hopper 21, and a hook 25 is protruded from the center of the upper surface of the lower sky figure 24 which is iron-bonded to the upper end of the storage hopper 23. The upper canopy 24' is rotatably supported on a thrust bearing 26 attached to the upper canopy 25, and holes 27, 27' for introducing rice husk are formed in the rear upper surface of the lower lid 24 and the front upper surface of the upper canopy 24'. A locking metal fitting 28 is provided on the side surface of the upper end cover 24' so as to face each other front and back, and operating pins 29, 29' are connected to the locking metal fitting 28 for forward and reverse rotation of the upper end cover 24' by 180 degrees. Upper canopy 24
After being wrapped around the circumferential side of the rice husk storage hopper 23, the spring is hung through the handles on the front and back sides of the rice husk storage hopper 23, and the spring locks the upper canopy 24' to both sides of the upper canopy 24. Attach the stopper 30 and
Flues 33a and 33b extending through the flame port 32 are provided inside,
An arbitrary number of outer cylinders 34 for heat exchange are jointed to the upper end of the main cylinder 31b, and an arbitrary number of inner cylinders 35 are iron-fitted to the upper end by making the upper end of the leech path 33b have a broad diameter. road 33
A large number of smoke pipes 36 which are passed through b are connected in the same way, and each pipe 36 is carried on the lower surface of the smoke pipe 37 at the upper end, and the outer cylinder 3
4 and the upper ends of the inner cylinder 35 are iron-bonded to the lower surface of the smoke tube 37, and the combustion gas flowing in from the flame port 32 is directed to the dust paths 33a, 33b,
The air sent from the air outlet 39 of the main cylinder 31a is sent to the outer cylinder 3 while flowing through the smoke pipe 36 to the bonito cylinder 37 and the chimney 38.
4 and the inner cylinder 35 is raised, and the air is allowed to flow into the inner cylinder 35 from the ventilation hole provided in the inner cylinder 35 at the upper position and lowered, and then from the hot air port 40 which is passed through the inner cylinder 35 at the lower stage. Heat exchanger 4 that extracts heated air as hot air
1, a heat exchanger 41 is installed on the upper surface of an underframe 42 provided on the side of the support frame 1, and the flame port 32 of the heat exchanger 41 and the smoke exhaust port 15 of the double sealed furnace body 6 are connected to each other. A rice husk combustion heating system 44 is constructed in which a closed ash storage tank 43 is passed through the front discharge port of the screw conveyor 3 of the ash removal device 4 below the double sealed furnace body 6. It is something that should be done as much as possible.

Next, the effects of the present invention will be explained with reference to embodiment figures.

The rice husk combustion heating device 44 according to the present invention is used for heating a greenhouse, etc.
, the double closed furnace body 6 and the funnel cylinder 17 were assembled, and a scaffold was erected on the upper surface of the support frame 1 to install the rice husk storage hopper 23, and a heat exchanger 41 was installed on the side of the support frame 1. The double closed furnace body 6 and the flame port 32 are moved, and the ash storage tank 43 is passed through the ash extraction device 4 to assemble the whole. Therefore, when feeding the required amount of rice husk into the rice husk storage hopper 23, when the operating strip 29 hanging down from the front of the rice husk storage hopper 23 is pulled downward, the upper canopy 24' is moved toward the back by the thrust bearing 26 of the hook 25. After rotating 180 degrees, the upper cover 24' is stopped by spring stoppers 30 provided on both sides of the lower cover 24 at the position where the input holes 27, 27' are connected, and the input holes are connected to each other by an air conveyor or the like. Rice husk is supplied from 27 and 27', and after the required amount of rice husk is deposited and accommodated, the supply of rice husk is stopped, and the upper canopy 24' is reversely rotated by pulling the operation unit 29' on the back to close the input hole. It is something. Therefore, when each compressor 19 suspended from the upper end of the support frame 1 is activated to supply low-pressure air to the lower end of each air chamber 5 provided on the outer periphery of the double-sealed furnace body 6, the low-pressure air is supplied to the air chamber 5. The air rises inside and is injected radially symmetrically from the air injection nozzle 12 to the space between the heat insulating body 10 of the heat insulating cylinder 7 and the first roaster 8. At the same time, when a flame is injected from the ignition port 13 by a burner, the heat is retained. The body 10 and the heat insulating cylinder 7 become red hot, and the rice husks that fall onto the top surface of the heat insulating body 10 from the distance between the first roasters 8 continue to burn while being ignited, and the heat insulating cylinder 1
It burns while falling into the second rooster 8' from the center hole of 0 and the distance from the heat insulating cylinder 7, and further falling to the third rooster 8''. As the inner cylinder becomes red hot and the inside of each air chamber 5 is heated, the low-pressure air fed into each air chamber 5 expands at a high temperature, and the high-temperature heated and pressurized air in the air chamber becomes high-pressure hot air. The air is injected from the air injection nozzle 12 into the heat-retaining cylinder 7.
This promotes the ignition and combustion of rice husk inside the rice husk. The combustion gas in the double sealed furnace body 6 flows under natural negative pressure from the smoke exhaust port 15 to the flame port 32 located at the lower part of the heat exchanger 41, and the bonito mold of the main cylinder 31a conveyed to the flame port 32 flows. 33a
The flow then flows to the bonito path 33b of the main pipe 31b, and further to the smoke pipe 36.
The combustion gas rises inside and is exhausted from the chimney 37 at the upper end via the chimney 38, during which time the combustion gas heats the flues 33a, 33b and the flue 36 and radiates heat, and the air inside the house is sent from the air outlet 39. The outside air rises through the space between the outer cylinder 34 and the inner cylinder 35 from inside the base cylinders 31a and 31b, flows into the inner cylinder 35 through a vent provided in the inner cylinder 35 at the top end, and is heated as it descends. The hot air is heated by heat conduction from the smoke pipe 36 and the inner cylinder 35, and is blown into the house as warm air from the hot air outlet 40 extending through the inner core 35 at the lower part to heat the inside of the house. be. A temperature detection sensor is provided in the hot air port 40 of the heat exchanger 41 or inside the smoke exhaust port 15 of the double sealed furnace body 6 to detect the temperature, and the temperature of the hot air or combustion gas rises above a set value. Then, the flame of the burner of the ignition port 13 is stopped and each air chamber 5 of the double sealed furnace body 6 is closed.
The amount of air injected from the air injection nozzle 12 is adjusted by controlling the combustor 19 passed through the air, or the combustor 19 is controlled ON-OFF to control the injection of high-pressure hot air into the heat-insulating cylinder 7. This is to adjust the relative combustion temperature of rice husk in the double sealed furnace body 6.

The rice husk storage hopper 23 has a cylindrical hopper 21 with an adjustable cylindrical hopper 21', so that the load pressure of the accumulated rice husk is received and reduced by the intermediate chutes 22, 22'. Without applying the entire load pressure to the first roaster 8, a constant amount of rice husk is dropped from the first roaster 8 regardless of the height of rice husk piled up, and combustion conditions can be made constant.

In addition, by replacing the funnel 16 in the funnel cylinder 17 and its accessories, the amount of rice husk flowing down can be adjusted according to the combustion. The combustion ash that has fallen into the tank is discharged by the screw conveyor 3 at the bottom into a closed ash storage tank 43, where it is stored and naturally extinguished. Therefore, the rice husk combustion heating device 44 according to the present invention utilizes natural falling to supply rice husks from the rice husk storage hopper 23 into the double-sealed furnace body 6, and ignites and burns the rice husks into the heat-insulating cylinder 7 inside the furnace body. Since the air chamber on the peripheral wall of the furnace body is used to inject high-pressure hot air to promote It requires extremely little power, and can be used at low cost as an energy-saving heating device by combining it with rice husk, which is agricultural waste.It is also easy to assemble and disassemble, and since it is vertically cylindrical, it does not take up much space. etc., the above-mentioned remarkable effects can be achieved.

[Brief explanation of the drawing]

FIG. 1 is a front view of a rice husk combustion heating device according to an embodiment of the present invention, FIG. 2 is a right side view thereof, and FIG. 3 is a plan view thereof.
FIG. 4 is an enlarged vertical sectional view of the double sealed furnace body 6, which is a component, FIG. 5 is an enlarged plan view with the first rooster removed, FIG. Figure 7 is an enlarged front view with a part of the funnel cylinder cut away, Figure 8 is an enlarged front view with a part of the cylindrical hopper, which is a component of the rice hull storage hopper, cut away, and Figure 9 is a part of the pressure adjustment cylinder hopper. 10 is a plan view of the same, FIG. 11 is an enlarged front view with a part of the cap attached to the upper end of the rice husk storage hopper cut away, and FIG. 12 is a plan view of the same. Figure 13 is the B-
A sectional view taken along the line B, FIG. 14 is a partially enlarged sectional view of the pivot joint of the upper and lower end covers 24, 24', FIG. 15 is a partially enlarged side view of the upper and lower end covers 24, 24', and FIG. The longitudinal sectional view and FIG. 17 are enlarged front views with a portion of the heat exchanger 41 cut away. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 Figure 9 Figure 10 Figure 11 Figure 12 Figure 13 Figure 14 Figure 15, Figure 16 Figure 17

Claims (1)

[Claims] 1. Install an ash extraction device with a discharge screw conveyor at the center of the bottom of a support frame of appropriate width, and insert a porous heat-retaining cylinder into a double-sealed furnace body with several sets of air chambers around the outer periphery. , supporting the rostle in the upper, middle and lower tiers of the heat insulating cylinder,
A heat insulator with a hole in the center is supported at the lower position of the upper rooster, and the air intake port is connected to the lower position of each air chamber on the outer periphery, and the air injection nozzle, which is connected to the air chamber at the upper position, is connected to the furnace. Protrude inward and above the heat insulator, provide an ignition port above the side of the double-sealed furnace body, connect an air port to the bottom, and connect a smoke exhaust port to the inside of the furnace on the opposite side. Then, the double-sealed furnace body is mounted on the top surface of the ash extraction device, and a funnel cylinder, which has a funnel inside to regulate the flow area of rice husk, is mounted on the top surface of the double-sealed furnace body, and the supporting frame is It is fixed at the center of the upper end, and the compressor attached to the support frame is connected to the air intake of each air chamber of the double-sealed furnace body through a high-pressure hose. A pressure adjusting cylinder hopper equipped with a pressure adjusting chute is assembled in any number of stages alternately, a canopy is fitted to the upper end, a flame port is provided protruding from one side of the main cylinder, and a flame is inserted into the inside of the main cylinder. A flue communicating with the mouth is provided, an arbitrary number of outer cylinders are jointed to the base cylinder, and an arbitrary number of inner cylinders are jointed and connected to the upper end of the flue, and a plurality of inner cylinders are connected to the flue within the inner cylinder. Connect the smoke pipe in the same way, connect the smoke pipe to the outer cylinder at the top end, and install a chimney.
The upper end of the inner cylinder is connected to the lower surface of the smoke cylinder, and the upper end of each smoke pipe in the inner cylinder is communicated with the smoke cylinder, and a large number of ventilation holes are opened in the upper outer peripheral surface of the inner cylinder at the upper end, so that one side of the main cylinder is connected. A heat exchanger with an air outlet on the side and a hot air outlet that communicates with the lower inner cylinder and protrudes from the outer surface of the outer cylinder is installed in parallel with the support frame of the furnace body, and the smoke exhaust port of the double-sealed furnace body is It communicates with the flame port of the heat exchanger and allows the combustion gas in the double-sealed furnace to flow from the flame port through the flue, smoke pipe, and smoke chamber, while the outside air sent from the heat exchanger's ventilation port is passed inside. The heating air is heated by raising the distance between the cylinder and the outer cylinder, and furthermore, the heated air is passed through the ventilation hole into the inner cylinder at the upper part of the inner cylinder and lowered, and then the heated air is exhausted from the hot air opening. , rice husk combustion heating device.