KR20120130802A - The pellet boiler - Google Patents

Abstract

PURPOSE: A pellet boiler is provided to reduce the waste of pellets by cutting off flames caused by pellet combustion using a partition plate. CONSTITUTION: A pellet boiler comprises a combustion plate(10), a main body(11), a sill(12), spiral rods(13), a power transfer member(14), and a power motor(19). The main body is formed in a circular ring shape. The sill is vertically protruded from the rim of the main body and prevents pellets from being separated from the main body. The spiral rods are arranged on the main body to be parallel. The power transfer member is grounded with the spiral rods. The power motor supplies power to the power transfer member to rotate the main body.

Description

Pellet boilers {The pellet boiler}

The present invention relates to a pellet boiler that generates combustion heat by igniting pellets, and in particular, rotation of a combustion plate in which pellets are seated into a combustion body in which the pellets are burned is made so that the pellets are evenly seated on the combustion plate to increase combustion efficiency of the pellets. Yet also relates to a pellet boiler which is provided with a blocking device as an inlet through which pellets are inserted, thereby preventing backfire due to combustion heat.

In general, boilers are used for supply of heating water and hot water in homes, offices, factories, and plastic houses, and these boilers are widely used by adopting oil boilers or gas boilers that are easy to handle.

However, in order to use such oil boilers or gas boilers, the cost of purchasing fuel is excessive and maintenance costs are high. Therefore, in rural areas, where the income level is difficult, there is an economic difficulty that increases the burden of using boilers. Even if phosphorus difficulties are excluded, fossil fuels used in oil boilers and gas boilers have been the main cause of global environmental pollution, including air pollution, due to the natural evaporation of gases from combustion exhaust gas and oil storage tanks.

Therefore, in recent years, in order to supplement the above problems, pellet boilers using pellets processed with chaff, sawdust, and other sludge have been widely used.

Among the boilers using the above-mentioned pellets, a typical technique is registered utility model No. 20-0446832, and most of the fillet boilers inject the air necessary for the combustion of the pellets through the holes drilled in the combustion plate on which the pellets are burned. It is made by blowing.

Therefore, as the air is injected into the combustion plate, combustion occurs simultaneously in all the pellets seated on the combustion plate, thereby operating the pellet boiler.

Pellet boilers as described above can be replaced with oil boilers or gas boilers are economically advantageous, but the pellets supplied to the combustion plate is placed on the combustion plate collectively laminated to a large amount of unburned pellets during combustion Due to the accumulation of ash in the bottom of the boiler, the pellet is incompletely burned and the efficiency is lowered. As the ash of the pellet burned by the combustion plate is blocked, it has been inconvenient to use, such as the need to periodically process the ash stuck to the combustion plate.

In addition, the process of inserting the pellet into the inside of the pellet boiler is generally input to the combustion plate through the inlet of the pellet boiler using a conveying device such as a screw conveyor, wherein the heat of combustion from the combustion plate is injected into the pellet boiler. It has been disadvantageous that the pellets are carbonized by being backfired to the storage hopper to be stored, causing waste of the pellets and causing breakage of the inlet and the pellet feeding device.

In order to solve the above problems, an object of the present invention is to rotate the combustion plate in which the pellets are seated inside the combustion body where the pellets are burned, so that the pellets are evenly seated on the combustion plate while increasing the combustion efficiency of the pellets. It is to provide a pellet boiler which is provided with a blocking device as the inlet to be injected to prevent backfire by the heat of combustion.

The above object is achieved by the following constitutions provided in the present invention.

The pellet boiler according to the present invention is a housing in which combustion heat is generated by combustion of pellets and a power source is supplied, a pellet feeding device in which a conventional screw conveyor tries to transfer pellets from the outside to the housing, and is supplied from the pellet feeding device. A pellet boiler comprising a combustion plate on which pellets are seated and combustion of pellets by an ignition body, the combustion plate comprising: a main body comprising a circular ring; And a stepped protrusion protruding vertically from the edge of the main body to prevent the pellet from being separated outward. A spiral rod twisted in a spiral direction and having a plurality of pairs of rods corresponding to the twisted directions in parallel to the main body; A power transmission member grounded with the spiral rod; And a power motor which applies power to the power transmission member to promote rotation of the main body in which the spiral rod is interposed.

In addition, the end of the pellet input device is formed with an inlet inclined downward to facilitate free fall of the pellet into the interior of the housing, the interruption of the inlet is a rotating shaft rotatable by power; A rotating plate configured in the form of a plate integrally spaced from the rotating shaft; It is characterized in that it is provided with a flashback prevention means made of a partition plate extending to the outer periphery of the rotating plate around the center of the spaced apart rotating plate to divide the inside of the rotating plate into a plurality of compartments.

In addition, a blower for introducing air into the housing is connected to a blower fan that sucks and discharges the outside air to one side of the housing, and the air flowing into the blower is discharged to the combustion plate at the end of the blower. It is characterized in that the expansion discharge pipe is formed in the form of a plurality of discharge holes are discharged to the upper side is expanded in the form of a grid.

In addition, the lower portion of the combustion plate and the expansion discharge pipe is characterized in that the collecting pipe for collecting the ash of the burned pellet is formed and the ash discharge device consisting of a conventional screw conveyor extending from the collecting pipe to the outside of the housing.

As described above, according to the present invention, the combustion plate to be seated in the pellet is twisted in a spiral direction and the spiral bar corresponding to the twisted direction is rotated in the power motor by interposing parallel to the main body, so that the spiral rod is rotated by the rotation of the combustion plate. The pellets seated on the board are evenly seated to evenly burn the pellets, increasing the combustion efficiency of the pellets, and forming spiral rods with different spiral directions.The ash content of the pellets burned between the spiral rods is automatically dropped to prevent blockage of the combustion plate. It is convenient to use.

In addition, the interruption part of the inlet is provided with a flashback prevention device including a partition plate which is interlocked with the rotation of the rotary shaft to alternately open and close the inlet, so that the flame caused by combustion of the pellet is blocked by the partition plate. The phenomenon is prevented, thereby preventing the waste of pellets and improving safety.

In addition, since the expansion discharge pipe, which is formed in the form of a lattice and has a plurality of discharge holes through which air is discharged to the upper portion, is configured to be connected to the tuyeres, the air is supplied to the combustion plate in a wider range to achieve complete combustion of the pellet and improve combustion efficiency. There is an effect to be improved.

In addition, since the collecting pipe for collecting the ash of the pellets is formed in the lower part of the combustion plate and the expansion discharge pipe and the ash discharge device made of a conventional screw conveyor extending from the collecting pipe to the outside of the housing, the collecting pipe without a separate ash processing device There is an effect that can easily process the ash of the pellet collected in.

1 is a perspective view showing a preferred form of a pellet boiler according to the present invention,
2 is an exemplary view showing a preferred form of a pellet boiler according to the invention,
3 is an exploded perspective view showing the form of a pellet boiler according to the present invention,
4 is an exemplary view showing a preferred cross section of a spiral rod formed on a combustion plate according to the present invention;
5 is an exemplary view showing a preferred form in which the pellet boiler according to the present invention acts,
6 is an exemplary view showing a preferred form of part A of FIG. 5;
7 is an exemplary view showing a preferred form of part A of FIG. 5;
8 is a perspective view showing a preferred form of a flashback blocker according to the present invention.

Hereinafter, with reference to the accompanying drawings will be described in detail the burner for pellets proposed in a preferred embodiment of the present invention.

1 is a perspective view showing a preferred form of a pellet boiler according to the present invention, Figure 2 is an exemplary view showing a preferred form of a pellet boiler according to the invention, Figure 3 is an exploded perspective view showing the form of a pellet boiler according to the present invention. In the form of the pellet boiler according to the present invention, as shown in FIGS. 1 to 3 and 5, the heat of combustion is generated by the combustion of the pellets, and a power source is supplied to the housing 1, and a conventional screw conveyor is provided in the housing. (1) Combustion in which pellets are burned by a pellet feeding device 5 for transporting the pellets and the pellets supplied from the pellet feeding device 5 are seated and ignited by a heater rod or a gas igniter. The plate 10 is comprised and comprised.

Here, the detailed form of the combustion plate 10 in which the combustion of the pellet is composed of a main body 11 consisting of a circular ring and is mounted on the inside of the main body 11 to protrude vertically from the edge of the main body 11 to be burned. Step 12 is configured to prevent the pellets from being separated to the outside.

In addition, as shown in FIGS. 4 and 7, the combustion plate 10 includes a plurality of rods that are twisted in a spiral direction and a pair of rods corresponding to the twisted directions in order to seat the pellets inside the main body 11. The spiral bar 13 interposed parallel to 11 is comprised.

In addition, the combustion plate 10 is composed of a power transmission member 14 which is grounded with the helical rod 13 and applies power to the power transmission member 14 grounded to the helical rod 13 of the combustion plate 10. A power motor 19 for rotating is included.

That is, when the pellet is charged into the spiral rod 13 of the combustion plate 10 by the pellet input device 5, the power transmission member 14 is rotated by the power applied from the power motor 19. Accordingly, the rotation of the helical rod 13 which is grounded with the power transmission member 14 is made, and the combustion plate 10 is rotated.

The pellet seated on the spiral rod 13 by the rotation of the combustion plate 10 is evenly seated, thereby preventing the phenomenon of combustion in the unburned state in the state of being laminated to the existing combustion plate, while increasing the combustion efficiency of the pellets By forming a pair of spiral rods 13 having different directions, ashes of pellets burned between the spiral rods 13 are automatically dropped, so that ashes are easily collected and are easy to use, and the combustion plate 10 is clogged. This will have a prevented effect.

The detailed description of the power transmission member 14 includes a first shaft 15 extending downward from the center of the spiral rod 13 and having a first gear 16 formed at a lower end thereof.

In addition, one side is formed with a second gear 18 is engaged with the first gear 16 of the first shaft 15 and the other side is connected to the power motor 19 is rotated in accordance with the drive of the power motor 19 A second shaft 17 is configured to transmit power to the first shaft 15 having the first gear 16 meshed with the second gear 18 to thereby rotate the combustion plate 10.

Accordingly, when the second shaft 17 is rotated by the power motor 19, the combustion plate 10 and the grounded first shaft 15 are also interlocked, thereby enabling rotation of the combustion plate 10. Even if the motor 19 is not provided in the housing 11, the combustion plate 10 may be rotated.

Meanwhile, the first gear 16 and the second gear 18 formed on the first and second shafts 15 and 17 are preferably made of any one of a helical gear, a worm gear, and a bevel gear.

Here, the end of the pellet input device 5 is formed with an inlet 20 is inclined in the downward direction so that the free fall of the pellet to the inside of the housing (1) is formed.

The interruption portion 30 of the inlet 20 is configured to prevent the backfire from being transferred to the pellet which is transferred to the flame inlet 20 by the combustion of the pellet.

The flashback prevention means 30 is composed of a rotary plate 33 is formed in the form of a plate which is rotatable by the power as shown in Figures 6 and 8 in the form of a plate integrally spaced with the rotary shaft 31 It is composed of a partition plate 35 extending to the outer periphery of the rotary plate 33 around the center of the spaced rotating plate 33 to divide the inside of the rotating plate 33 into a plurality of compartments.

That is, when the pellet is transferred to the inlet 20 through the pellet input device 5, the rotary shaft 31 of the flashback prevention means 30 formed at the interruption of the inlet 20 is rotated by power and the rotary shaft 31 Due to the rotation of the rotary plate 33 and the partition plate 35 is rotated and rotated by the partition plate 35 is introduced into the partition inside the partition plate 35 is rotated in the pellet discharge direction of the inlet 20 When the pellet introduced into the partition plate 35 is seated in the combustion plate 10 through the inlet 20, the partition plate 35 is rotated again.

Therefore, as the inlet 20 is alternately made into an open and cut state by the partition plate 35 which is made of a plurality of rotations, the flames caused by the combustion of the pellets are blocked by the partition plate 35, thereby preventing backfire. The pellet is supplied to the combustion plate 10 continuously.

In addition, a blower opening 40 which introduces air into the housing 1 is connected to a blower fan 45 that sucks and discharges external air to one side of the housing 1.

In addition, a plurality of discharge holes 55 are formed at the ends of the tuyeres 40 so that the air flowing into the tuyeres 40 is discharged to the combustion plate 10 and the air is discharged to the extended upper side. Due to the expansion discharge pipe 50 is configured to expand the grid in the form of the expansion discharge pipe 50 and the discharge hole 55 formed in the expansion discharge pipe 50, the combustion plate 10 to the wider range of the air necessary for combustion It can be supplied to to ensure complete combustion of pellets and to increase combustion efficiency.

Here, the ashes of the burned pellets according to the present invention are dropped between the spiral rods 13 to form the collecting pipes 60 under the combustion plate 10 and the expansion discharge pipe 50 to collect the ashes of the pellets. The pipe 60 can collectively collect the ashes of the burned pellets.

In addition, the ash discharge device 70 made of a conventional screw conveyor extending from the collecting pipe 60 to the outside of the housing 1 is configured to facilitate the processing of the ash of the pellets collected in the collecting pipe 60. .

1: housing
5: pellet injection device 10: combustion plate
11: body 12: step
13: spiral rod 14: power transmission member
15: 1st axis 16: 1st gear
17: 2nd axis 18: 2nd gear
19: power motor 20: inlet
30: flashback prevention means 31: rotating shaft
33: rotating plate 35: partition plate
40: blower port 45: blower fan
50: expansion discharge pipe 55: discharge hole
60: collecting tube 70: rotary discharge device

Claims (6)

The combustion heat is generated by the combustion of the pellets, and a housing in which a power source is supplied, a pellet feeding device for transporting pellets from a conventional screw conveyor to the housing, and a pellet supplied from the pellet feeding device are placed on the ignition body. In the pellet boiler which contains the combustion plate which burns pellets by,
The combustion plate 10 has a main body 11 consisting of a circular ring; And a stepped portion 12 protruding vertically from the edge of the main body 11 to prevent the pellet from being separated outward.
A spiral rod (13) interposed parallel to the main body (11) with a plurality of pairs of rods that are twisted in a helical direction and corresponding in a twisted direction;
A power transmission member 14 grounded with the spiral rod 13; And a power motor (19) for applying rotational force to the power transmission member (14) to facilitate rotation of the main body (11) in which the spiral rod (13) is interposed. The method of claim 1,
The power transmission member 14 extends from the center of the spiral rod 13 to the bottom and the first shaft 15, the first gear 16 is formed at the lower end,
A second gear 18, one side of which is engaged with the first gear 16 of the first shaft 15, is formed, and the other side is connected to the power motor 19 and rotated according to the driving of the power motor 19. It characterized in that it comprises a second shaft (17) for transmitting the power to the first shaft (15) formed with the first gear (16) meshing with the second gear (18) to facilitate the rotation of the combustion plate (10). Pellet boiler. 3. The method according to claim 1 or 2,
The first gear (16) and the second gear (18) is a pellet boiler, characterized in that any one of the helical gear, worm gear, bevel gear. 4. The method according to any one of claims 1 to 3,
An end portion of the pellet input device 5 is formed with an inlet 20 which is inclined downward so as to facilitate free fall of the pellet into the housing 1.
Rotation shaft 31 that can be rotated by the power to the interruption portion of the inlet 20; A rotating plate 33 configured in the form of a plate integrally spaced from the rotating shaft 31; The flashback prevention means 30 which consists of the partition plate 35 which extends to the outer periphery of the rotation plate 33 centering on the center of the said rotation plate 33, and divides the inside of the rotation plate 33 into a plurality of divisions is provided. Pellet boiler characterized in that. 5. The method of claim 4,
A blower opening 40 which introduces air into the housing 1 is connected to a blower fan 45 that sucks and discharges outside air to one side of the housing 1, and the end of the blower hole 40 is formed. Is expanded in the form of a grid so that the air flowing into the tuyere 40 can be discharged to the combustion plate 10, the expansion discharge pipe 50 is formed with a plurality of discharge holes 55 are discharged to the expanded upper side Pellet boiler characterized in that. The method of claim 5,
A lower portion of the combustion plate 10 and the expansion discharge pipe 50 is provided with a collecting pipe 60 for collecting ash of the burned pellets and extending from the collecting pipe 60 to the outside of the housing 1. Pellet boiler characterized in that the ash discharging device 70 consisting of a conveyor.

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