JPS59138815A - Chaff burning stove - Google Patents

Abstract

PURPOSE:To burn chaff completely and efficiently to be reduced to ashes, by allowing chaff to flow down discretely, and burning the chaff deposited in the hearth with the air blown through the surroundings and the center of the hearth. CONSTITUTION:The chaff 25 that is supplied from a hopper 5 through an auger 8 driven by a variable motor 10 with the delivering speed adjustable is allowed to drop from a notch 3 onto the conical surface of a canopy 20, and is dispersed approximately uniformly radially by round rods 24 by adjusting the center of the conical surface of the canopy 20. Owing to the forced air currents spouted from spouting holes 13 drilled in the circumferential surface of a conical wall 12 and natural air currents from air holes 23 of an air pipe 18 upright at the center of a combustion chamber 1, the combustion of the chaff proceeds so that the chaff deposited gradually in the hearth can be burned efficiently and completely. Thus the temperature of the chaff surface is kept high enough to gasify the combustible constituents of the chaff 25 instantly so that the complete combustion is facilitated. The cinders are allowed to drop on an ash tray 32 by oscillating an oscillation lever 29.

Description

[Detailed description of the invention] The present invention relates to a rice husk stove.

The pressure on energy resources has penetrated into households, especially in Tohoku,
In regions such as Hokkaido, which experience severe winters, the soaring price of kerosene for heating is putting pressure on the cost of living. Therefore, the present invention seeks energy resources from rice husks, which are inherent in rice cultivation, and completely burns the rice husks, which were conventionally turned into ash in the fields and wasted heat energy and caused smog pollution, and extracts them as heating energy. At the same time, it provides a stove that can kill two birds with one stone by producing ash that can be used as conventional organic fertilizer.

Rice husks have lower combustibility than easily combustible materials such as straw, and when they accumulate, they become lumps and carbonize during combustion, reducing combustion. Conventional rice husk stoves generally install a rosdol in the flow path of the rice husks, scorch the rosdol, and use the heat to burn the rice husks that flow down, but the surface of the rice husk is rough. Since the fuel tends to get tangled and flow down, it has the disadvantage that combustion is incomplete, resulting in more carbonization, and vigorous combustion cannot be achieved.

Therefore, the present invention attempts to solve the above-mentioned drawbacks by forcing the rice husks to separate and flow down individually.

The above object of the present invention is to allow the rice husks supplied from the hopper to fall evenly in the circumferential direction from the upper center of the combustion chamber at a freely adjustable delivery speed, to introduce natural ventilation from the center of the combustion chamber, and to introduce forced air from the outer periphery. This is accomplished by ejecting.

In other words, as combustion progresses, the grate is deposited evenly over the entire surface of the combustion chamber, and sufficient air is supplied to the inside of the grate by ventilation from the center and forced air from the outer periphery. The combustion components of the rice husks that fall on top of the combustion surface are instantly gasified and burned, and complete combustion is repeated gradually. The completely burned ash can be used as organic fertilizer.1.Special.

It can be provided as an ideal stove for heating in farms. The present invention can be used not only for home heating but also as a heating device for greenhouse cultivation in farmers.

The present invention will be described in detail based on a preferred embodiment thereof with reference to the accompanying drawings. As shown in FIG. A predetermined notch hole 3 is drilled in the end surface, a flange 4 is integrated into the end surface, and a support tube 6 that is integrated with the lower part of the hopper 5 is inserted into the guide tube 2. The hopper 5 is connected to the combustion chamber 1 by a 7 flange 7 which is cut out in phase with the support cylinder 6 and is integral with the supporting cylinder 6. The auger 8 housed in the support tube 6 has its tip supported by a bearing 9 that is engaged with the tip of the support tube 6, and is driven by a variable motor 10. The combustion chamber 1 is erected on a box-shaped base 11, and its lower inner circumferential surface is made 2M with a conical wall 12 in the shape of a constriction. A lower loss dollar 14 is integrated on the end face. A guide tube 16, which is erected and penetrates through the center of the upper strut 15, is engaged with the engagement hole drilled in the center of the lower rod 14, and a slot 17 is inserted in a cross pattern from the upper end of the guide tube 16. , the slot 17 has a ventilation pipe 18
The vent pipe 18 is secured by locking the engaging element 19 passed across the lower end of the vent pipe 18.
A support tube 21 is inserted into the upper end of the ventilation tube 18 so as to cover the guide tube 16, and a support tube 21 is inserted vertically inside a conical umbrella 20, and a bolt 22 is attached eccentrically as shown in FIG. The vent holes 23 are perforated in multiple stages on the circumference. As shown in FIG. 6, a required number of round rods 24 are welded to the conical surface of the umbrella 20 in a meticulous direction so that falling rice husks 25 are evenly distributed in the circumferential direction. The upper loss dollar 15 has discharge holes 26 and 27 appropriately arranged as shown in FIG.
A round bar 28 is provided near the center circumference of the discharge hole 26.
A swinging support 29 as shown in FIG. 6 is fixed to the lower end of the guide tube 16, which is integral with the center. The lower Rosdol 14 is also in phase with the Upper Rosdol 15 and passes through similar discharge holes 26.27, and the upper Rosdol 15 is swung by 45° relative to the Lower Rosdol 14 to form the discharge holes 26.27.
27 respectively. Air is forcibly blown between the lower conical walls 12 of the combustion chamber 1 by a fan 60, and the airflow is adjusted by a damper 31. Inside the base 11 is housed an ash receiver 62 which is scraped out by a round bar 28 set up in the upper Rosdol 15, and handles 63 shown in FIG. 1 are integrated in the front and rear of the ash receiver 62. .

With the above configuration, the rice husks 25 are supplied from the hopper 5 via the auger 8 driven by the variable motor 10 at a freely adjustable delivery speed. By adjusting the eccentricity of the round rods 24 radially engaged with the conical surface, the ejection holes 16 are distributed approximately evenly in the circumferential direction, and are bored in the circumferential surface of the conical wall 12.
Combustion progresses by forced air blowing out from the combustion chamber 1 and natural ventilation from the vent hole 23 of the vent pipe 18 installed in the center of the combustion chamber 1, and the grate that gradually accumulates on the grate is efficiently and completely burnt, and the grate surface The temperature of the rice husks 25 is constantly maintained at a high temperature, and the combustion components of the rice husks 25 are instantaneously gasified and combusted, and complete combustion is repeated without causing any pollution. The embers are collected by shaking the rocking material 29 from side to side to collect the ash in the ash tray 62.
It is used to drop.

As mentioned above, the present invention has the characteristic that rice husks are separated into individual pieces and flowed down, and the accumulated fire bed is combusted by air supplied from the surroundings and the center, so that the rice husks are efficiently and completely combusted and turned into ash. be.

[Brief explanation of the drawing]

Fig. 1 is a front view of the rice husk stove according to the present invention, Fig. 2 is a partially enlarged vertical sectional view of Fig. 1, Fig. 6 is a plan view of the umbrella, and Fig. 4 is A-A in Fig. 2. 5 is a plan view of the upper Rosdol, and FIG. 6 is a diagram showing the state in which the rocking member is installed. In the figure, 1 is a combustion chamber, 2 is a guide tube, 6 is a notch hole, 5 is a hopper, 6 is a support tube, 8 is an auger, 12 is a conical wall, 13
is a blowhole, 14 is a lower Rosdol, 15 is an upper Rosdol,
16 is a guide pipe, 18 is a ventilation pipe, 20 is an umbrella, 27 is a support pipe, 26 is a ventilation hole, 24 is a round bar, 25 is rice husk, 26.
27 is a discharge hole, 28 is a round bar, and 29 is a rocking member. Chief Patent Applicant: Tadashi Oo, Attorney: Mori Fuji

Claims (1)

[Claims] The speed of delivery can be adjusted evenly in the circumferential direction from the center of the stove's combustion chamber. Rice husks are dropped from the top center of the combustion chamber, natural ventilation is introduced in the center of the combustion chamber, and forced air is blown out from the outer periphery to cover the entire surface of the combustion chamber. This rice husk stove features an evenly deposited fire bed that gasifies and burns the combustible components of rice husks.