KR101318649B1 - Multipurpose boiler for solid fuel - Google Patents

Abstract

The present invention relates to a multi-purpose solid fuel boiler, in particular to minimize the incomplete combustion and heat loss generated during the combustion of solid fuel, to maximize the combustion rate to continuously maintain the boiler thermal power, temperature control is also easy, user convenience It relates to a multipurpose solid fuel boiler that can increase and reduce environmental pollution.
Multipurpose solid fuel boiler of the present invention, the fuel supply unit for storing and supplying the solid fuel; A combustion unit providing a space in which the fuel supplied from the fuel supply unit is combusted and including a plurality of perforated plates through which a plurality of perforations are penetrated; Located in the lower portion of the combustion unit, the ignition and air input unit for supplying combustion air to the combustion unit; And a driving unit for rotating the combustion unit.

Description

MULTIPURPOSE BOILER FOR SOLID FUEL}

The present invention relates to a multipurpose solid fuel boiler. More specifically, the present invention relates to a multipurpose solid fuel boiler capable of burning various types of solid fuel.

In general, boilers for burning solid fuel such as coal include briquette boilers, coal briquette boilers such as briquettes, lignite boilers, and pellet boilers. However, such a conventional solid fuel combustion boiler has various problems as follows.

① First, coal or biomass needs to be molded to improve calories and ease of transportation. ② And the clinker (clinker) is generated during the combustion process has a problem that it is difficult to manage the equipment. The clogging of the clinker and its incomplete combustion lead to a significant reduction in combustion efficiency. ③ Also, there is a difficulty in reprocessing a large amount generated after combustion. It requires manpower and cost for reprocessing, and adds inconvenience to use. ④ There is a problem that it is difficult to implement an automatic control system due to difficulty in temperature control. As a large amount of solid fuel accumulates inside the furnace at once and burns at a time, it is difficult to control the high calorific value generated instantaneously. In particular, it is difficult to reduce the generation of environmental pollutants such as Nox due to the difficulty in controlling the high temperature part.

In order to solve the above problems, the "fuel automatic feed rotary boiler of Patent No. 10-0918502 (Registration date September 15, 2009) and Publication No. 2010-0002400 (publishing date October 7, 2010) "Etc. has been proposed. The main feature of these patents is that when the fuel is stored in a pre-stored fuel storage section partitioned by the partition wall, and after the fuel has been burned to some extent, the heat generated when the fuel is burned down and falls below a predetermined reference value It is composed of a method of automatically driving a drive motor to transfer new fuel to a combustion chamber for combustion.

This method is to fill each combustion cylinder partitioned by the high bulkhead and to burn the fuel one by one sequentially, so that the boiler capacity is higher than that of a device that burns the solid fuel evenly over a large area and burns the whole. It is difficult to expand easily. In addition, when the fuel is loaded with a high amount of fuel in each combustion cylinder, the combustion is carried out after burning all of the combustion cylinders separated by lattice, even though the finished ash is accumulated in the lower part. Combustion becomes difficult, which causes a large drop in combustion efficiency, and also causes a problem in that heat generated from the fuel that is burned is not immediately available as the fuel takes a long time to normally burn.

In addition, each bulkhead is made of a heat insulating material such as a refractory brick to prevent heat generated when the fuel is burned from being transferred to the fuel in the immediate vicinity of the bulkhead, which causes heavy loads and requires a lot of power when the combustion chamber rotates. In addition, there may be a problem that can not ensure durability due to high temperature heat and heavy load during long-term operation.

And the registered utility model No. 20-0407029 (registered on January 18, 2006, "automatic boiler for solid fuels", unlike the above-described patent is a way to spread the fuel in a large area without the partition of a high partition wall, In addition, it is difficult to expand the boiler capacity by putting combustion air into the combustion section only in a certain section, and since there is no partition wall structure of a certain height, the height of the fuel loaded on the perforated plate of the combustion section becomes uneven, which prevents stable thermal management. .

In addition, the perforated plate is provided with different sizes of holes and is re-processed through the holes, but the clinker or incompletely burned coarse particles formed by ash fusion at the time of forming the hot part according to the long time operation of the boiler. In this case, there is a limit in reprocessing through the through-hole provided in the perforated plate, and if this phenomenon continues to accumulate, it causes the boiler efficiency to be greatly reduced.

The present invention is to solve the conventional problems as described above, to minimize the incomplete combustion and heat loss generated during the combustion of solid fuel, to maximize the combustion efficiency, so that the boiler thermal power can be continuously maintained constant, temperature control It is also an object of the present invention to provide a multipurpose solid fuel boiler that can be used for various solid fuels that are simple and can increase user convenience and reduce environmental pollution.

In order to achieve the above object, the present invention provides a fuel supply unit for storing and supplying solid fuel; A combustion unit providing a space in which the fuel supplied from the fuel supply unit is combusted and including a plurality of perforated plates through which a plurality of perforations are penetrated; Located in the lower portion of the combustion unit, the ignition and air input unit for supplying combustion air to the combustion unit; And a driving unit for rotating the combustion unit.

Further, the fuel supply unit: a fuel hopper for storing a fuel having a predetermined volume; A screw conveyor connected to a lower end of the fuel hopper and having an inclination to move the fuel upward; A fuel supply chute which connects the screw conveyor and the combustion unit and has an inclination; And a fuel distribution box positioned below the fuel supply chute and having an expanded line width.

In addition, the fuel supply chute: a butterfly valve for blocking the inside of the fuel supply chute; And two level switches spaced apart from each other in the fuel supply chute to check fuel presence.

And the lower end of the fuel distribution box is open, the bottom height of the left and right sides of the open opening is different from each other, and the lower height of the fuel distribution box is characterized in that it further comprises a height adjustment unit for adjusting the height.

In addition, the combustion unit includes a circular guide and ribs surrounding the periphery of the perforated plate, the perforated plate is preferably rotatably fixed to the circular guide by an eccentric shaft provided at a position eccentric to one side.

Furthermore, the lower perforated plate may further include a fixed tilting guide for supporting the perforated plate and rotating the perforated plate to process ash.

The fixed tilting guide may further include: an outer circular guide and an inner circular guide of concentrically spaced structures; And a plurality of vertical guides orthogonal to and fixed to the inner circular guide and the inner circular guide.

And the vertical guide is arranged such that only one vertical guide is eccentric to one side while being arranged at a predetermined interval, the inner circular guide includes an opening, the outer circular guide, a hinge, a rotatable rotatable by the hinge, the lower direction It is preferable to include an inclined portion inclined at a predetermined angle.

In addition, the ignition and air input unit: a blower for supplying combustion air; Primary combustion air supply pipe formed from the blower toward the lower perforated plate; And it may include a secondary combustion air supply pipe formed toward the upper perforated plate from the blower.

Furthermore, the burner may further include a burner provided below the combustion unit to generate a flame toward the perforated plate.

The apparatus may further include a driving unit configured to rotate the combustion unit, wherein the driving unit includes a motor, a driving shaft rotating by the motor and rotating the perforated plate, and a combustion cylinder connecting flange positioned above the driving shaft. An empty space is formed inside the communication connection flange so that secondary combustion air can pass therethrough.

And a sealing part sealing the circumference of the combustion part, wherein the sealing part is formed to be fixed along the circumference of the combustion part and has a downwardly bent structure, and has a 'b' shape along the circumference of the combustion part of the combustion part. It is preferable to include a support provided with a sealing material.

In addition, further comprising a reprocessing unit provided in the lower portion of the combustion unit, the reprocessing unit, a scraper for sweeping the ash while rotating in the lower portion of the combustion unit, the ash located in the lower than the scraper and the ash scraped by the scraper is collected It may include a collecting container.

In addition, it is located at the top of the boiler, and further comprises a heat exchanger for heat exchange of heat generated in the combustion unit, the heat exchanger is characterized in that it comprises a water supply pipe, a hot water outlet and a plurality of pipes.

Furthermore, it may further include a resistance plate located on the heat exchanger.

The multi-purpose solid fuel boiler of the present invention minimizes incomplete combustion and heat loss generated during solid fuel combustion, maximizes combustion efficiency, and maintains boiler firepower continuously and easily, and also controls temperature easily. User convenience is increased by automation, and environmental pollution is also reduced.

1 is a side cross-sectional view showing the entire multipurpose solid fuel boiler according to the present invention;
FIG. 2 is an enlarged side sectional view of the fuel supply chute 16 and its periphery in the multipurpose solid fuel boiler shown in FIG. 1;
3A and 3B are plan views showing portions of the perforated plate 24 in the multipurpose solid fuel boiler shown in FIG. 1;
4 is a plan view and a side view of the stationary tilting guide 70 in the multipurpose solid fuel boiler shown in FIG.
Figure 5 is a side cross-sectional view showing the sealing unit 50 side in the multipurpose solid fuel boiler shown in FIG. And,
6a and 6b are a side view and a plan view of the heat exchange unit 80 side in the multipurpose solid fuel boiler shown in FIG.

Hereinafter, an embodiment of a multipurpose solid fuel boiler according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a side cross-sectional view showing the entire multi-purpose solid fuel boiler according to the present invention. Referring to Figure 1, the multi-purpose solid fuel boiler according to the present invention is a fuel supply unit 10, combustion unit 20, ignition and air input unit 30, drive unit 40, sealing unit 50, reprocessing unit 60 and a heat exchanger 80. First of all, these configurations are as follows.

The fuel supply unit 10 is configured to supply fuel to the combustion unit 20, and is configured to supply fuel by dropping the solid fuel, which is constantly measured, to the combustion unit 20. The combustion unit 20 is positioned at the center of the multipurpose solid fuel boiler, that is, the fuel supply unit 10 and the ignition and air input unit 30, and provides a space in which the fuel is combusted.

The ignition and air input unit 30 is located at the bottom of the combustion unit 20, and serves to ignite the fuel to be smoothly combusted by supplying the initial operation fuel. It serves to supply the combustion unit 20. The driving unit 40 is configured to rotate the combustion unit 20 such that combustion of fuel is combusted at regular time intervals, and also serves to rotate the scraper 62 of the reprocessing unit 60.

The sealing part 50 is a structure which seals the combustion part 20, and the reprocessing part 60 is a structure which processes the ash which generate | occur | produced in the combustion part 20. FIG. The heat exchanger 80 is configured to heat exchange heat generated in the combustion unit 20.

Hereinafter, the configurations of the fuel supply unit 10 to the heat exchange unit 80 will be described in more detail.

[Fuel Supply Department]

Referring to FIG. 1, the fuel supply unit 10 includes a fuel hopper 12, a screw conveyor 14, and a fuel supply chute 16. The fuel hopper 12 is configured to store fuel having a predetermined volume. The screw conveyor 14 is connected to the bottom opening of the hopper 12 to move the fuel in the hopper 12 upward. The screw conveyor 14 has a cylindrical shape having a predetermined length and width, and a plurality of screws rotate therein to move fuel in a predetermined direction. The screw conveyor 14 is formed to be inclined at a predetermined angle to move the fuel to a high position and to freely move the fuel through the fuel supply chute 16.

2 is an enlarged side cross-sectional view of the fuel supply chute 16 and its surroundings in the multipurpose solid fuel boiler shown in FIG. 1 and 2, the fuel supply chute 16 has one end portion connected to the screw conveyor 14, and the other multi-side portion connected to the combustion unit 20, through the screw conveyor 14. It is a configuration for supplying the delivered fuel to the combustion unit 20 in a free-falling manner. The fuel supply chute 16 includes a butterfly valve 18a and two level switches 18b and 18c. The butterfly valve 18a is operable in conjunction with the screw conveyor 14 and shuts down the fuel supply chute 16 to prevent fire or gas in the combustion section 20 from flowing back to the fuel supply section 10. It is a constitution. The level switches 18b and 18c are spaced apart from each other to detect whether fuel is located in the fuel supply chute 16 at the corresponding position.

A fuel distribution box 16b is provided below the fuel supply chute 16, and the fuel distribution box 16b is configured to be integrally formed with the fuel supply chute 16, as shown in FIG. It refers to a portion where the line width is expanded compared to the fuel supply chute (16). The fuel distribution box 16b has an open lower end as shown in the enlarged view of FIG. 2, and is configured such that the lower heights of the left and right sides of the open opening are different, and the lower height (the enlarged view of FIG. The left side in the figure) may be provided with a height adjusting portion 16a that can further adjust the height. The fuel distribution box 16b is configured to continuously supply fuel to the combustion unit 20 at a constant height, and the height adjusting unit 16a sweeps the fuel to a certain height while the perforated plate 24 rotates, Only the fuel equal to the height of the height adjusting portion 16a remains flat on the perforated plate 24.

Referring to the operation of the fuel supply section 10 having such a configuration as follows.

First, while the screw conveyor 14 operates, the fuel in the fuel hopper 12 moves upward, and is supplied to the combustion unit 20 through the fuel supply chute 16 and the fuel distribution box 16b. The fuel is accumulated at a predetermined height above the perforated plate 24 of the combustion unit 20, and the fuel is filled in the interior of the fuel distribution box 16b and the fuel supply chute 14. When fuel accumulates to the level switch 18b, the operation of the screw conveyor 14 is stopped and the butterfly valve 18a is also locked. Then, as the combustion unit 20 rotates, the fuel in the fuel supply chute 14 and the fuel distribution box 16b continues to be supplied to the other perforation plate 24 of the combustion unit 20, and then the fuel is supplied to the level switch 18c. ), The screw conveyor 14 is operated again (the butterfly valve is also opened) and fuel supply is resumed as described above.

[Combustion unit]

Next, the combustion unit 20 is a space where fuel is burned, and includes a configuration in which the fuel is rotated at a constant speed. The combustion unit 20 includes a plurality of combustion cylinders 22 and ribs 22a (ribs), perforated plates 24, and circular guides 26 positioned therebetween.

3A and 3B are plan views showing the perforated plate 24 in the multipurpose solid fuel boiler shown in FIG. 3A and 3B, a plurality of perforated plates 24 are provided in a trapezoidal to fan-shaped space formed by the circular guide 26 and the ribs 22a. That is, the perforated plate 24 has a structure surrounded by the circular guide 26 and the rib 22a, and naturally includes the rib 22a and the circular guide 26 to form a "bulb" having a low height. As a result, the fuel to be loaded is loaded on the perforated plate 24 at a constant height, and the combustion and the remaining ash are not mixed with the newly charged fuel, thereby realizing combustion stability, and at the same time, the ash which has been burned is formed in the form of ribs 22a. It provides the effect of allowing each of the ash to be treated independently by a tilting installation to be described later in the lower partition of the.

The circular guide 26 and the rib 22a are configured to rotate the perforated plate 24 while also rotating by the drive unit 40. The perforated plate 24 has circular through holes penetrated at regular intervals according to the characteristics and particle size of the solid fuel. In the plate-shaped configuration provided, the fuel supplied from the fuel supply unit 10 is burned on the upper perforated plate 24. Although FIG. 3A shows 12 perforated plates 24, the number of perforated plates 24 may be changed according to boiler capacity and design configuration.

The perforated plate 24 is rotatably fixed to the circular guide 26 by an eccentric shaft 24a provided at a position deflected to one side, and as described later, the eccentric shaft 24a is predetermined as an axis. The ash on the upper perforated plate 24 is processed while rotating angularly.

4 is a plan view and a side view of the stationary tilting guide 70 in the multipurpose solid fuel boiler shown in FIG. The lower portion of the perforated plate 24 shown in Figures 3a and 3b is provided with a fixed tilting guide 70, which serves to support the perforated plate 24, the role of processing the ash by rotating the perforated plate 24 at a specific position Can be performed.

The stationary tilting guide 70 comprises an inner circular guide 72, an outer circular guide 74 and a vertical guide 76, which three guides 72, 74, and 76 are fixed to each other and to a multipurpose solid fuel boiler. It is fixed structure in the inside. The two circular guides 72 and 74 are concentric circles with a predetermined distance from each other and are orthogonal to and fixed to each other by the vertical guide 76. The inner circular guide 72 has a larger diameter than the circular guide 26 (see FIG. 3B), and also serves to support the perforated plate 24 so as not to rotate downward. A plurality of vertical guides 76 are provided, preferably equal to the number of perforated plates 24, and 12 are shown in FIG. The vertical guides 76 are arranged at regular intervals, but only one vertical guide 76a is disposed in an eccentric structure to be fixed to the outside of the lower air nozzle 32. As a result, the space between the two vertical guides 76a and 76b is wide, the space between the two vertical guides 76b and 76c is narrow, and reprocessing is performed in this wide space as will be described later.

In a wide area between the two vertical guides 76a and 76b, one side of the inner circular guide 72 is provided with an open portion 72a having a circular cut shape, and the outer circular guide 74 has a hinge 74b and a rotating portion. 74a and the inclined portion 74c are provided. As shown in the enlarged view of FIG. 4, the rotating portion 74b is provided to be rotatable by the hinge 74b, and as the separate driving device rotates the hinge 74b, the rotating portion 74b moves downward. Can rotate The inclined portion 74c is integrally formed with the outer circular guide 74 and has a configuration inclined at a predetermined angle in a downward direction.

As shown in the enlarged view of FIG. 4, in order to process the ash remaining on the upper perforated plate 24 rotated one or more times in the combustion unit 20, when the perforated plate 24 comes to the position of the rotary part 74a, the hinge ( The rotating portion 74a moves downward while the 74b is rotated. Thereafter, the perforated plate 24 rotatably provided by the eccentric shaft 24a is rotated until the inclined portion 74c is abutted on the eccentric shaft 24a, and the perforated plate 24 is rotated so that the inclined portion ( By the force hitting 74c), the ash remaining in the upper part of the perforated plate 24 and various impurities trapped in the through hole 24 are simultaneously dropped into the lower reprocessing unit.

[Ignition and air inlet]

The ignition and air input unit 30 is positioned below the combustion unit 20 to ignite the fuel in the combustion unit 20 and inject air into the combustion unit 20 for complete combustion after ignition. Referring to FIG. 2, the ignition and air injection unit 30 includes a burner 31, an air nozzle 32, combustion air supply pipes 33 and 34, and a blower 36.

The burner 31 is provided in the lower part of the combustion part 20, and is a structure which generate | occur | produces a flame toward the perforated plate 24, and is a structure which can be abbreviate | omitted. This is because the multipurpose solid fuel boiler according to the present invention has a structure in which the combustion of the fuel is transferred to the fuel above the adjacent perforated plate 24 after combustion occurs in the fuel above the first perforated plate 24. When the burner 31 is omitted, the user may directly ignite the fuel through a lower inspection window (not shown) provided at one side of the combustion cylinder 22.

Combustion air supply pipe (33, 34) is a tube for supplying air into the combustion unit 20, the primary combustion air supply pipe 33 supplies the combustion air transferred from the blower 36 to the air nozzle (32) This air supplies air to the lower portion of the perforated plate 24 through the air nozzle 32 (arrow denoted by 'A'). The secondary combustion air supply pipe 34 supplies air from the blower 36 to the upper part of the perforated plate 24 through the empty space in the center of the combustion unit 20 (arrow denoted by 'B'). In a state where a lot of ash is generated by burning the fuel on the upper perforated plate 24, the supply of air through the air nozzle 32 may not be smooth. ) It supplies the combustion air to the fuel of the upper part.

In addition, combustible gas (Co gas, etc.) may be generated when a large amount of solid fuel is combusted, and the secondary combustion air supply pipe 34 also serves to supply air for combusting the combustible gas. As such, the combustion efficiency can be maximized by re-burning in the combustion unit 20 without discharging the flammable gas to the outside air, and the emission of environmental pollutants can also be reduced. In addition, a dual effect of cooling the heat generated by the driving device for rotating the combustion unit due to the secondary combustion air supply can be obtained.

The primary combustion air supply pipe 33 has a plurality of ends of the air nozzle 32 for supplying combustion air into the combustion cylinder 22 in a configuration that is wrapped around the combustion cylinder 22. When 12 perforated plate 24 is provided, it is preferable that the end of the air nozzle 32 is formed toward the lower 11 perforated plate 24 except for the reprocessing unit.

[Driving section]

Referring to FIG. 2, the driving unit 40 is configured to rotate the combustion unit 20 such that combustion of fuel is combusted at regular time intervals, and also rotates the scraper 62 of the reprocessing unit 60. ) And a drive shaft 44 and a combustion cylinder connecting flange 46.

The motor 42 is configured to rotate the drive shaft 44, and the drive shaft 44 is fixed to the ribs 22a and the circular guide 26 of the combustion unit 20, and uses the power of the motor 42 to drive the ribs. 22a and the circular guide 26 are rotated.

A combustion cylinder connecting flange 46 is provided above the drive shaft 44, and both the driving shaft 44 and the combustion cylinder connecting flange 46 have empty spaces formed at the center thereof, so that combustion is supplied from the secondary combustion air supply pipe 34. Air can pass through. Combustion cylinder connecting flange 46 is formed with a through hole (not shown) along the side wall through which the combustion air can be delivered to the upper perforated plate (24).

Rotation time and interval of the drive shaft 44 is a structure that can be arbitrarily adjusted by the user's operation, for example, can be adjusted so that the perforated plate 24 can rotate at 1 rpm.

The scraper 62 of the reprocessing unit 60 is attached to the lower end of the drive shaft 44 so that the scraper 62 is also connected to the lower end of the drive shaft 44 to be rotated at the same time as the combustion unit 20 rotates. 62 is a structure which sweeps the ash which fell to the bottom in the rotation direction as mentioned later.

[Sealing part]

5 is a side cross-sectional view showing the sealing unit 50 side in the multipurpose solid fuel boiler shown in FIG. Referring to FIG. 5, the sealing part 50 includes a pedestal 52, a bend 54, and a sealing material 56. The sealing unit 50 is configured to seal the inside of the combustion unit 20 so that air supplied into the combustion unit 20 through the combustion air supply pipes 33 and 34 does not escape to the outside. The sealing unit 50 is a cylindrical structure made of a heat insulating structure such as refractory material in order to prevent heat loss caused by the combustion of fuel in the combustion unit 20 to escape to the outside of the boiler.

The bent part 54 is fixedly formed along the circumference of the circular guide 26 of the combustion part 20 and has a downwardly bent structure. Pedestal 52 has a configuration extending along the circumference of the combustion cylinder 22, and includes a space that can contain the sealing material 56 therein, it is preferably provided in a 'b' shape. The sealing material 56 is preferably a material having a low caking property, and may include a liquid such as water or sand (silica sand).

The bent part 54 rotates as the combustion part 20 rotates by the power of the drive shaft 44 in a state of being embedded or embedded in the sealing material 56 inside the pedestal 52. As a result, while the combustion unit 20 rotates, the combustion air supplied into the combustion cylinder 22 through the air nozzle 32 is not discharged to the outside, and heat inside the combustion cylinder 22 is also not discharged to the outside. A structure can be provided.

Reprocessing Department

The reprocessing unit 60 is provided under the combustion unit 20 and is configured to discharge ash dropped to the lower portion of the perforated plate 24 by the operation of the fixed tilting guide 70 after being burned by the perforated plate 24. The reprocessing unit 60 includes a scraper 62 and a collecting container 64.

The scraper 62 is connected to the drive shaft 44 and rotates together with the drive shaft 44 to sweep the ashes. The ash collecting cylinder 64 is provided at one lower side of the combustion cylinder 22 and the scraper 62 is provided. Sweep the ash is collected in the fall configuration and may be composed of a drawer-type sealed structure that can be removed at random.

[Heat exchanger]

The multipurpose solid fuel boiler according to the present invention may be used as a hot water heater or a hot air heater, but when used as a hot air heater, a separate heat exchange part is not required, and heat generated in the combustion part 20 may be used as it is. By the way, when used as a water heater, as shown in Figure 6a and 6b which is a side view and a plan view showing the heat exchange unit 80 side in the multipurpose solid fuel boiler of the present invention minimizes the loss of heat generated in the combustion unit 20 In order to provide a heat exchanger 80 in the upper portion of the boiler is preferable.

The heat exchanger 80 is located at the top of the boiler and is configured to perform heat exchange of heat burned by the combustion unit 20. The heat exchanger unit 80 of the hot water boiler may use both an associated type and a water pipe type, and an associated type is illustrated in FIG. 6B. The associative equation is a structure in which water is filled in the spaces 89 around the plurality of tubes 88, and the water is heated while the heat moves along the tubes 88. Although not shown, the water pipe type is a structure in which water is filled in an inside of a pipe arranged horizontally or vertically, and heats water while heat moves along a space around the arranged pipe.

Referring to FIG. 6A, a water supply pipe 84 is provided at one side of the heat exchanger 80, and a hot water outlet 86 is provided at the other side thereof, and water filled in the spaces 89 (see FIG. 6B) surrounding the plurality of tubes 88 is heated. Structure.

The upper portion of the heat exchanger 80 is provided with a resistance plate 82, so that the heat passing through the tube 88 is not immediately discharged to the outside of the boiler to stay in the boiler for a longer time by the resistance of the resistance plate 82 The heat loss can be reduced. And the resistance plate 82 may also provide the effect of maintaining a constant pressure in the boiler.

The multi-purpose solid fuel boiler of the present invention including such a configuration minimizes incomplete combustion and heat loss generated during solid fuel combustion, maximizes the combustion rate, and continuously maintains the boiler fire power, and temperature control is also simple and convenient. It is an invention that can provide the effect that can be increased and also reduce the environmental pollution.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention as defined by the appended claims. Of the present invention.

10: fuel supply unit 12: fuel hopper
14 screw conveyor 16 fuel supply chute
16a: height adjuster 16b: fuel distribution
18a: butterfly valve 18b, 18c: level switch
20: combustion section 22: combustion cylinder
22a: rib 24: punched plate
24a: eccentric shaft 26: circular guide
30 ignition and air input 31 burner
32: air nozzle 33: primary combustion air supply pipe
34: secondary combustion air supply pipe 36: blower
40: drive unit 42: motor
44: drive shaft 46: combustion cylinder connecting flange
50: sealing portion 52: pedestal
54: bend portion 56: sealing material
60: reprocessing unit 62: scraper
64: recirculation container 80: heat exchanger
82: resistance plate

Claims (15)

A fuel supply unit for storing and supplying solid fuel;
A combustion unit providing a space in which the fuel supplied from the fuel supply unit is combusted and including a plurality of perforated plates through which a plurality of perforations are penetrated;
Located in the lower portion of the combustion unit, the ignition and air input unit for supplying combustion air to the combustion unit; And
It includes a drive unit for rotating the combustion unit,
The ignition and air inlet,
A blower for supplying combustion air;
A primary combustion air supply pipe configured to surround the bottom of the combustion unit from the blower;
An air nozzle formed toward the lower portion of the perforated plate in the primary combustion air supply pipe; And
A secondary combustion air supply pipe formed from the blower toward the upper perforated plate;
Multipurpose solid fuel boiler comprising a. The method according to claim 1,
The fuel supply unit:
A fuel hopper storing fuel with a predetermined volume;
A screw conveyor connected to a lower end of the fuel hopper and having an inclination to move the fuel upward;
A fuel supply chute which connects the screw conveyor and the combustion unit and has an inclination; And
Located at the bottom of the fuel supply chute and the fuel distribution with an expanded line width
Multipurpose solid fuel boiler comprising a. The method according to claim 2,
The fuel supply chute is:
A butterfly valve blocking the inside of the fuel supply chute; And
Two level switches installed in the fuel supply chute spaced apart from each other to check the presence of fuel
Multipurpose solid fuel boiler comprising a. The method according to claim 2,
The lower end of the fuel distribution box is open, the bottom height of the left and right sides of the open opening is different from each other,
The lower end of the height of the fuel distribution box multi-purpose solid fuel boiler, characterized in that it further comprises a height adjustment unit for adjusting the height. The method according to claim 1,
The combustion unit includes a circular guide and ribs surrounding the perforated plate,
The perforated plate is a multi-purpose solid fuel boiler, characterized in that the rotatable fixed to the circular guide by the eccentric shaft provided in a position eccentric to one side. The method according to claim 1,
And a fixed tilting guide provided below the perforated plate to support the perforated plate and rotate the perforated plate to process ash. The method of claim 6,
The fixed tilting guide is:
An outer circular guide and an inner circular guide of concentrically spaced structures; And
A plurality of vertical guides orthogonal to and fixed to the inner circular guide and the inner circular guide
Multipurpose solid fuel boiler comprising a. The method of claim 7,
The vertical guide is arranged such that only one vertical guide is eccentric to one side while being disposed at regular intervals,
The inner circular guide includes an opening,
The outer circular guide is a multipurpose solid fuel boiler, characterized in that it comprises a hinge, a rotatable portion rotatable by the hinge, the inclined portion inclined at a predetermined angle in the downward direction. delete The method according to claim 1,
And a burner provided at a lower portion of the combustion part to generate a flame toward the perforated plate. The method according to claim 1,
Further comprising a drive unit for rotating the combustion unit,
The drive unit includes a motor, a drive shaft rotating by the motor and rotating the perforated plate, a combustion cylinder connecting flange located above the drive shaft,
Multi-purpose solid fuel boiler, characterized in that the empty space is formed in the drive shaft and the combustion cylinder connecting flange can pass through the combustion air. The method according to claim 1,
Further comprising a sealing unit for sealing around the combustion unit,
The sealing part may include a bent part which is fixedly formed along the circumference of the combustion part and has a downwardly bent structure, and is provided in a 'b' shape along the circumference of the combustion part of the combustion part to contain a sealing material. Multi-purpose solid fuel boiler. The method according to claim 1,
Further comprising a reprocessing unit provided under the combustion unit,
The reprocessing unit, a multi-purpose solid fuel boiler, characterized in that it comprises a scraper for sweeping the ash while rotating in the lower portion of the combustion unit, and the ash tray located in the lower portion than the scraper, the ash scraped by the scraper is collected. The method according to claim 1,
Located at the top of the boiler, and further comprising a heat exchanger heat exchange of heat generated in the combustion unit,
The heat exchange unit, a multipurpose solid fuel boiler, characterized in that it comprises a water supply pipe, a hot water outlet and a plurality of pipes. The method according to claim 14,
Multipurpose solid fuel boiler, characterized in that it further comprises a resistance plate located above the heat exchanger.

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