JPS5923922Y2 - Rice husk combustion equipment - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of a rice husk combustion device (Husqburner) that burns rice husks as a fuel source.

The purpose of the present invention is to provide the above-mentioned rice husk combustion device.
To enable rice husks used as fuel to be continuously fed into a combustion furnace with a simple structure, and to continuously discharge combustion residue.

In order to achieve this purpose, the rice husk combustion device according to the present invention has a combustion furnace body for burning rice husks formed into a longitudinally long cylindrical body. A supply port for continuously supplying rice husks is installed in the furnace, a combustion gas outlet is provided on the front end side, and an air guide path is provided below the floor plate of the furnace body to communicate with a blower device for forcefully feeding combustion air. established,
A portion of the floor plate that contacts the air guide path is provided with numerous blowholes for blowing out the pressurized air fed to the air guide path into the interior of the combustion furnace. A rice husk discharge port leading to the outside is provided in front of the part of the floor plate where the jet nozzle is provided, and as the rice husks fed into the combustion furnace are burned, the rice husks are The feature is that the supplied combustion air is sequentially conveyed toward the exhaust port.

Next, an example of implementation will be explained in detail according to the drawings.
In the figure, reference numeral 1 denotes a combustion furnace body formed in a long cylindrical shape from front to back, which is supported within a machine frame 2 formed in a box shape so as to safely surround the furnace body 1 for workers.

The machine frame 2 includes running wheels 20 for towing and traveling to a desired location, and supporting legs 21 for fixing it at a desired location.

Reference numeral 10 denotes a supply port provided in the combustion furnace body 1 for feeding rice husks as fuel into the combustion furnace body 1, which is located near the rear end of the earthen wall of the furnace body 1 (the right end in FIG. 1). There is a hole in the part of
The supply port 10 is connected to a discharge port 30 of a cyclone 3 supported on the upper surface of the machine frame 2 so as to remove dust from the rice husks while continuously supplying the rice husks using pressure air.

Reference numeral 11 denotes a nozzle for discharging the combustion gas generated by the combustion of rice husks H in the furnace body 1. The front end side of the furnace body 1 (the left end side in Fig. 1) is constricted into a funnel shape, and the nozzle at the front end is used to exhaust the combustion gas. It is opened to the liquid portion through a cylindrical portion 22 formed at the front end of the box-shaped machine frame 2.

Reference numeral 4 denotes an air guide path for supplying combustion air to the combustion furnace body by the blower device 5, and is installed on the lower surface of the floor plate 12 of the combustion furnace body 1 so that the floor plate 12 serves as a ceiling wall. The inner cavity of the combustion furnace body 1 is communicated with through numerous slit-shaped nozzle holes 6 provided in a range other than the front end of the floor plate 12.

Then, the blowhole 6... is directed toward the front and upward direction, as shown by the arrow W in FIG. It is formed into a shape that gives it character.

Reference numeral 7 denotes a discharge port installed in the front end portion of the floor plate 12 of the furnace body 1 in front of the area in which the fumarole ports 6 are formed, and a discharge gutter 70 formed in a funnel shape communicates with the discharge port 7. At the lower end of the discharge gutter 70, there is an ejector 8 for discharging which is actuated by pressure air guided from the blower device 5 through the branch pipe 50, and a guide pipe 80 for guiding the rice husks blown away by the ejector 8. is a connection.

Reference numeral 9 denotes a jacket-shaped cavity formed between the combustion furnace body 1 and the machine frame 2, and the above-mentioned air guide path 4 is connected through the slit 90.
The airflow from the blower device 5 is blown into this empty chamber 9 as well.

A part of the pressure air is blown into the inner cavity of the combustion furnace body 1 through the nozzle holes 91 and 92 provided in the peripheral wall of the combustion furnace body 1.

Reference numeral 13 denotes a starting ignition port formed in a cylindrical shape and provided on the rear wall of the combustion furnace body 1, and a lid 14 that can be opened and closed is provided at the outer end.

Further, 15 is a guide board.

Next, to explain the function and effect, in the rice husk combustion device according to the present invention configured as described above, the supply port 10
The rice husks H supplied from the combustion chamber 1 are deposited in a mountain shape at the rear of the combustion furnace body 1.

When a desired amount of rice husks H has been deposited, the ignition rod is inserted into the ignition port 13 to ignite it, and the blower device 5 is activated. The combustion air, which is a pressure wind, is sent into the passageway 4 from the blower device 5 and blows out from the blowhole 6 formed in the floorboard 12, and the flame gradually spreads toward the inside, causing the flame to become red-hot. At the same time, the rice husks gradually start to flow forward in a fluidized layer from the front hem of the rice husks.

In this state, if rice husks are continuously supplied from the supply port 10, the newly supplied rice husks are successively deposited in layers on top of the red-hot rice husks and heated, causing the aforementioned pressure to rise from below. While burning the wind as combustion air, it flows forward little by little, turning into rice husks and being discharged to the exhaust lower, and by continuously repeating this process, the combustion operation continues.

Therefore, according to the present invention, the conveyance of the supplied rice husks to the combustion site and the conveyance of the rice husks to the discharge port are carried out continuously by the supplied combustion air, so that almost no mechanical A simple structure with no mechanical mechanism allows rice husks to be burned continuously.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional side view of an embodiment of the device of the present invention, and FIG. 2 is a perspective view of the main parts of the same device. Explanation of drawing symbols 1... Combustion furnace body, 10...
... Supply port, 12 ... Floor plate, 2 ...
Machine frame, 3... cyclone, 4... air guide path, 5... blower device, 6... fumarole, 7...・Discharge port, 70...Discharge gutter 8
... Ejector 80 ... Induction pipe, 9 ... Air, 90 ... Slit, 9
1.92...fumarole.

Claims (1)

[Scope of utility model registration request] The combustion furnace body for burning rice husks is formed into a longitudinally long cylindrical body, and the combustion furnace body is equipped with a supply port capable of continuously supplying rice husks above the rear end side of the combustion furnace body, and the front end side A combustion gas outlet is provided in the furnace body, an air guide path is provided below the floor plate of the furnace body that communicates with a blower device that pumps combustion air, and a portion of the floor plate in contact with the air guide path is provided with an air guide path. A large number of blowholes for blowing out the supplied pressurized air into the inner cavity of the combustion furnace are formed so that the ejected pressurized air is directed forward and upward, and the part of the floor plate where the blowholes are provided. A rice husk combustion device characterized by having a rice husk discharge port leading to the outside in front of the rice husk.