KR200385865Y1 - large-sized hot-water boiler using solid fuel - Google Patents

Abstract

The present invention relates to a large hot water boiler using solid fuels such as coal, coke and briquettes.

The present invention enables the proper supply and combustion of solid fuel by using a stepped loading chamber and combustion chamber structure capable of loading a large amount of solid fuel and supplying and combusting an appropriate amount of solid fuel. The hot water boiler system can be constructed, and the heat transfer pipe installed inside the hot water chamber is configured in the form of several coils to secure a sufficient heat transfer area, thereby minimizing heat loss and achieving high thermal efficiency, especially in the upper part of the combustion chamber. Combustion heat is introduced into the heat transfer tube in order to protect the tube from the high temperature heat of combustion, as well as a combined rehairing device that combines a swinging hair type means of repeating movement up and down and a rotating crushing means of contact with each other. By applying to effectively crush the hardened solid mass of combustion materials, etc. By making it possible to remove, it is possible to increase the thermal efficiency of the hot water boiler according to the quick and complete removal of the combustion material, and also to clean the processing of the combustion material to extend the life of the hot water boiler, thus the overall management of the hot water boiler It also provides a large hot water boiler using solid fuel that can be used safely and easily.

Description

Large-sized hot-water boiler using solid fuel

The present invention relates to a large-scale hot water boiler using solid fuels such as coal, coke, and coal briquettes, and more particularly, a stepped loading chamber and combustion chamber structure capable of supplying solid fuel, and various heat transfer effects that can be expected to be excellent. By providing a large-scale hot water boiler, which includes a coil-type heat pipe structure, a swing-and-rotary automatic recoupling device for effective treatment of combustion materials, it is possible to obtain high thermal efficiency and extend the life of the boiler. It is possible to manage and handle safely and easily, and especially for large-sized hot water boilers using solid fuel suitable for large-capacity hot water boilers, as the supply and combustion of solid fuel and the treatment of combustion materials are organically and smoothly performed. It is about.

In general, a boiler is a means for heating a water tank circulated for hot water and heating while the burner is operated by a control system such as an electric ignition method, and the fuel mainly uses oil or gas.

In the case of boilers using oil or gas as fuel, the burden of using boilers is increasing in rural areas where income levels are difficult because maintenance costs are high, such as excessive cost of purchasing fuel.

In view of these characteristics, it is a recent trend that a lot of boilers used as solid fuels such as coal, wood, and coal briquettes are spread in rural areas.

Most of the existing boilers using the solid fuel as described above simply burn fuel in the lower part of the hot water tank, so that the annual loss through the outer wall of the combustion chamber is large, resulting in low overall thermal efficiency. Since the members are exposed to high temperatures, they are easily corroded, which shortens the lifetime of the boiler.

In particular, there is a difficulty in management and handling such that the ash remains as it is before a human directly handles the burned and left ash, which causes the fire pores to be clogged and the fire is easily turned off.

Although there are some devices that give off the combustion materials by impacting from the bottom, coal and briquettes have many kinds and have various characteristics in hardness and properties. Therefore, most of them are entangled with each other in the combustion chamber after combustion. It is hard to expect a great effect with existing ashtrays, such as pulverization, which cannot be pulverized and discharged by means of whipping alone.

In order to solve this problem, the applicant of the present application proposes a utility model application No. 2004-23561 (hot water boiler using solid fuel) and 2004-31155 (reheater device of hot water boiler using solid fuel). I have previously filed a).

However, the existing hot water boilers are mostly of small capacity, and these are used in a large capacity due to structural limitations in the loading chamber or combustion chamber, which are difficult to properly supply and combust the solid fuel and to effectively treat the combustion materials. However, if the small capacity structure is used as it is, the space of the hopper-shaped loading chamber or combustion chamber, which is usually about 2 m in diameter, becomes too large, and the solid fuel is excessively supplied and the fuel is combusted in a large space. As a result, fuel consumption is unnecessarily high, and thermal power is increased, causing water to boil over, causing problems such as the need for a large capacity hot water boiler.

Therefore, the present invention has been devised in view of such a point, and it is possible to load a large amount of solid fuel, and at the same time, a solid fuel using a stepped loading chamber and a combustion chamber structure capable of supplying and combusting an appropriate amount of solid fuel. It is an object of the present invention to provide a large hot water boiler using solid fuel, which can build a large capacity hot water boiler system by enabling the proper supply and combustion of fuel cell.

In addition, according to the present invention, by applying to a large-capacity boiler, the existing one-line heat pipe installed inside the hot water chamber is configured in the form of several lines of coils to secure sufficient heat transfer area, thereby minimizing heat loss and achieving high thermal efficiency. Another object is to provide a large-sized hot water boiler using solid fuel, in which combustion heat is introduced from the upper part of the combustion chamber to the heat transfer tube side to protect the lead pipe from high temperature combustion heat.

At this time, the heat pipe is configured to be directed from the top to the bottom to connect the fan to the bottom to facilitate the exhaust dust to be accumulated in the heat pipe can be easily discharged to the outside to the fan.

In addition, another object of the present invention is to apply a composite ashtray of the combination of a rocking hair means of the swinging method of repeatedly moving up and down and a rotating crushing means of the rotational contact with each other to provide a hard solid mass of combustion materials, etc. By effectively crushing and removing, it is possible to increase the thermal efficiency of the hot water boiler according to the rapid and complete removal of the combustion material, and also to process the combustion material neatly, thus extending the life of the hot water boiler. It is to provide a large hot water boiler using solid fuel which can make the overall management and handling of the product safe and easy.

The present invention for achieving the above object is formed at the top of the inner center for the solid fuel loading and is formed below the inner center for the combustion of the loading chamber and the solid fuel having a bottom portion of the hopper form a certain length vertical from the bottom of the loading chamber The main body is divided into a tube-type combustion chamber communicating with the hot water chamber formed around the loading box and the combustion chamber for storage of supply and discharge hot water, and one side is provided with an ignition port communicating with the combustion chamber, and combustion heat inflow through one side of the upper end of the combustion chamber. A heat transfer tube extending from the tube and downwardly disposed in the form of a coil in the hot water chamber along the circumference of the combustion chamber and extending to the outside and connected to the fan and performing heat transfer using combustion heat passing through the inside; Combustion while supported on the installed combustion chamber floor frame Enters the inside of the ash tray, or include apparatus for swinging and rotary hybrid that was off jugeona crushing the re-combustion configuration while the bottom part of the combustion chamber is characterized in that is made.

In addition, the combustion chamber is characterized by consisting of a tapered tube shape of the upper portion is narrow and the wide bottom portion for the smooth fall of solid fuel.

In addition, the heat transfer pipe is characterized in that made of at least three rows of coil-like pipes are arranged to be concentrically superimposed while being independently branched into the combustion heat inlet pipe.

In addition, the ashtray device is arranged side by side at the bottom of the combustion chamber and installed to swing to one of the hinge portion while extending to the inside of the combustion chamber to blow out the ash using two pairs of both projections to maintain a constant distance from each other at the same time A swing-type rehabilitation device comprising a rehabilitation plate, a motor fixed to a leg of the boiler body, a link and an eccentric plate connected to the other side of the rehabilitation plate and a shaft of the motor to transmit the driving force of the motor to the rehabilitation plate; Two crushing drums for crushing the combustion material placed on the top of the combustion chamber bottom frame rotatably supported on both sides and horizontally arranged in parallel with each other at the same time at the bottom of the combustion chamber, the motor for driving the crushing drum It characterized in that it comprises a rotary transmission device consisting of a chain transmission device connected between the shaft and one of the shredding drum and a gear transmission mounted on each of the shredding drum to rotate.

In addition, one of the two shredding drums of the ashtray device is supported on both sides of the shaft by the bearing block receiving the upper and lower guides on the combustion chamber bottom frame and the rear end elastic support by the spring and the stopper for supporting it. It is characterized in that it is installed in a structure slidable in the opposite direction.

In addition, the two shredding drums of the ashtray device is arranged at regular intervals along the drum longitudinal direction and are arranged one by one while being provided with a plurality of shredding gears overlapped by a part of the end portion enters therebetween.

In addition, the two shredding drums of the ashtray device are arranged at regular intervals along the drum longitudinal direction and at regular intervals along the drum circumferential direction and are arranged one by one with each other, and end portions are partially overlapped therebetween. A plurality of rows of crushing rods are provided.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

The present invention, as also disclosed in the prior art, the applicant's patent application Utility Model Application No. 2004-23561 (hot water boiler using solid fuel) and 2004-31155 (reheater device of hot water boiler using solid fuel) The overall configuration is similar because it is applied to a large-capacity boiler, and the problems of the configuration of the loading chamber, the combustion chamber, the heat transfer pipe, and the ashing device, which could not be solved in the small capacity as applied to the large-capacity boiler, are completely and effectively. Note that it is a supplement. Therefore, in the composition of the present application, if there is no understanding or insignificant matters, refer to the above application will be able to grasp a more clear technology.

1 to 6 show several embodiments of a large hot water boiler according to the present invention.

1 to 6, the main body 14 of the hot water boiler is made of a substantially cylindrical and can maintain a constant height through a plurality of legs.

The inside of the main body 14 is largely divided into subdivisions, the center is composed of a loading chamber 10 for filling solid fuel, the lower portion is composed of a combustion chamber 11 communicating with the loading chamber 10, The surroundings of the loading chamber 10 and the combustion chamber 11 are composed of a hot water chamber 12 that can fill water.

The hot water chamber 12 is provided with an inlet and an outlet, respectively, above and below the side portions for circulation of the outside and the water, so that water can be supplied through this place or hot water can be drawn out.

In addition, the loading chamber 10 is a place that can fill the solid fuel, such as coal, briquettes, and when the solid fuel is put into the interior is stacked up from the lower combustion chamber (11).

In addition, one side of the combustion chamber 11 is provided with an ignition port 32 communicating with the outside, through which it is possible to ignite the initial operation of the boiler.

In addition, the upper portion of the loading chamber 10 is closed with a lid 33, it is possible to replenish the solid fuel consumed after opening and closing the place.

In particular, the loading chamber 10 and the combustion chamber 11 have an effective structure that can process a large amount of solid fuel, that is, supply and burn after loading.

To this end, the loading chamber 10 has a structure in which the bottom portion is narrowed in the shape of a hopper, so that the solid fuel filled in the loading chamber can be supplied while naturally flowing down appropriately, and the combustion chamber 11 is loaded in the loading chamber. It has a structure extending vertically vertically downward while passing through the bottom of (10), and at the same time, the upper part is narrow and gradually becomes wider toward the lower side, so that ashes work and smooth solid fuel without clogging. To the lower combustion zone. In other words, the fuel is filled up to the lower portion of the loading chamber where the space is narrowed, and the combustion chamber is widened, thereby providing a smooth supply of fuel.

In other words, such a stepped structure of the loading chamber and the combustion chamber has been constantly supplied with a large amount of solid fuel even when a large amount of solid fuel is put into the loading chamber, so that excessive combustion of the solid fuel has been performed. Compared with the conventional linear or hopper type cylinder and loading chamber, the thermal efficiency can be effectively managed and controlled, thereby implementing a large-scale hot water boiler system.

The present invention provides a heat pipe structure that can effectively utilize the high temperature heat source of the combustion gas generated during combustion.

To this end, the heat transfer tube 16 has a structure that is wound around the combustion chamber in the form of a coil and then extends through the side of the body 14 to the outside and then joins.

In particular, such a heat transfer tube 16 is composed of at least three rows of coil-shaped pipes arranged concentrically, so that the heat transfer operation can be performed in a wider area in the hot water chamber 12.

Each of the heat transfer tubes 16 is independently connected to the combustion heat inlet pipe 15 which extends to one side while communicating with the upper one side of the combustion chamber 11 so that the high temperature combustion heat generated during combustion is introduced into the combustion heat. It can be provided to each heat pipe 16 through the pipe (15).

Preferably, the exhaust fan (P) is connected to the outer side section of the heat transfer pipe (16) so that the combustion heat can be sucked and discharged, so that the temperature of the combustion heat can also be controlled by controlling the flow of the combustion gas.

In particular, the discharge fan is installed at the end of the heat transfer tube 16 extending out of the main body to extend to the outside, wherein the end of the heat transfer tube that is the final discharge portion of the combustion gas is disposed at the bottom of the heat transfer tube at the full height of the heat transfer tube. In addition, by installing a discharge fan, the dust contained in the combustion gas can be sucked out more effectively when the combustion gas is inhaled.

That is, by disposing the exhaust fan at the lowermost end of the heat transfer tube 16, it is possible to facilitate the collection of dust that sinks downward, thus completely eliminating the problem of clogging the heat transfer tube 16 due to dust or the like. In the past, when the fan is installed on the top of the heat pipe, dust is continuously accumulated at the bottom of the heat pipe, so even if the fan located on the upper side has a problem that the dust accumulated on the bottom could not be sucked up and discharged to the outside completely.

In addition, the heat transfer tube 16 is removed from the high temperature environment by arranging the introduction side of the combustion heat provided to the heat transfer tube 16 on the upper side of the combustion chamber 11, that is, as far as possible from the high temperature region where the solid fuel is directly combusted. You can protect it.

In the case of boilers using solid fuels, the treatment of ash remaining after combustion is very important, and the treatment of such ashes also affects combustion efficiency, so a means for periodically treating ashes is required.

To this end, the present invention provides a composite ashtray 18 using a motor as a power source.

The composite ashtray 18 is composed of a swinging ashtray 18a and a rotary ashtray 18b, which shakes up and down the combustion material while rotating up and down to directly crush the combustion material while rotating. It is possible to process the combustion material.

The components of the ashtray apparatus are installed in a structure supported by the combustion chamber bottom frame 17 installed at the center of the bottom of the main body 14 while forming the bottom of the combustion chamber 11.

At this time, the combustion chamber bottom frame 17 is composed of a horizontal member consisting of a plurality of pipe arrays and a vertical member extending a predetermined length down to form a rectangular frame, the central portion of the horizontal member is an opening of a certain area, which will be described later here. The two shredding drums 24 are disposed so that they can be directly exposed to the combustion chamber 11, and the gap between the pipes can be adjusted when the protrusions 19 of the ashboard 20 described later enter the combustion chamber 11. You can act as a passageway.

The oscillating ashtray device 18a includes a ashtray plate 20 that shakes ash while being shaken by the link 22 and the eccentric plate 23.

The ashtray 20 is arranged side by side at the bottom of the combustion chamber 11, that is, the bottom of the combustion chamber bottom frame 17, and is swingably installed with one hinge 34 as an axis, and the other is a link. It is connected with the shaft of the motor 21 provided in the leg side of the main body 14 via the 22 and the eccentric board 23. As shown in FIG.

That is, the eccentric plate 23 is mounted on the shaft of the motor 21, and the bar-shaped link 22 has a pin coupling structure at both ends between one side of the eccentric plate 23 and one side of the ash tray 20. By being connected, the power of the motor 21 can lead to the swinging motion of the ash board 20 through the rotational movement of the eccentric plate 23 and the vertical movement (connecting movement) of the link 22.

The upper surface of the ash tray 20 is formed with two pairs of left and right protrusions 19 which can extend and protrude to the inside of the combustion chamber 11, and the protrusions 19 are formed through the pipe gap of the combustion chamber bottom frame 17. It enters up to (11) and comes into direct contact with the ashes.

Accordingly, when the motor 21 is operated, the eccentric plate 23 connected to the shaft rotates, and the ash 22 connected to the upper end of the link 22 is continuously moved while the link 22 moves up and down together. Since the front end of the plate 20 is raised or lowered up and down, the ashtray 20 is swung about the hinge portion 34 of the rear end, and thus the protrusion 19 repeatedly entering the combustion chamber 11. ) Can be used to shake off the ashes.

At this time, the front end of the ashtray plate 20 is connected to the link 22 is supported between the leg side of the body 14 is arranged in the lower and at the same time is accommodated in the guide 35 having a long incision groove up and down When the swinging can be guided, thus, the ashtray 20 can be sufficiently carried out without problems such as shaking from side to side.

Finally, the ash falling down can be collected and processed using a separate collection box.

The rotary ashtray 18b includes two shredding drums 24, in which the shredding drum 24 is directly at the center of the bottom of the combustion chamber 11, that is, in the combustion chamber bottom frame 17. It is horizontally arranged in parallel with each other at the same time from the lower side and supported rotatably on both sides of the combustion chamber bottom frame 17, that is, both ends of the shaft by the bearing block 29 mounted on the combustion chamber bottom frame 17. It is supported and crushes the combustion material placed thereon.

A chain transmission device 25 and a gear transmission device 26 are provided for driving the crushing drum 24, and the chain transmission device 25 includes a single sprocket mounted on the shaft of the motor 21. It is composed of another sprocket mounted at the end of one shredding drum 24 and a chain connected between the two sprockets to transfer the power of the motor 21 to the shredding drum 24.

In addition, the gear transmission 26 serves to allow the two shredding drums 24 to rotate together, and are engaged with each other while being mounted on one side of each shredding drum 24, for example, without a sprocket. It consists of two gears to go back.

Accordingly, when the power is transmitted by the chain transmission device 25, the two crushing drum 24 can be rotated together.

As a preferred embodiment of the present invention, as shown in Figure 6, it is possible to drive each of the two crushed drums 24 individually by the power provided from one motor 21, this individual drive mechanism is a closed drum Even if a hard foreign matter or a large amount of combustion material is caught in between, the block drum 24 is rotated without a problem, thereby providing an advantage that the shredding operation can be performed smoothly.

To this end, the sprocket and the electric gear are mounted side by side on the shaft of the motor 21, the other on the shaft on the support bracket 36 which is installed side by side on the side of the motor 21 is engaged with the electric gear to rotate. And a sprocket which rotates together with each other, and each sprocket of each of the two crushing drums 24 is connected to the motor side and the support bracket side sprocket through each chain to receive power. As the motor 21 is driven, each of the shredding drums 24 can be rotated by receiving power separately, and thus, even when there is a gap between the shredding drums 24 as described below, the two shredding drums ( 24 can be rotated smoothly each.

In particular, as shown in FIGS. 1 to 3, each of the shredding drums 24 includes a plurality of shredding gears arranged at regular intervals along the drum longitudinal direction and at the same time arranged to face each other. 30) are integrally mounted, wherein each of the crushing gears 30 is overlapped with a part of the crushing gears 30 disposed between the respective gears facing each end thereof so as to overlap each other. The combustion material placed on the top can be easily pulled in and crushed easily.

That is, the combustion material placed on each of the crushing gears 30 of the crushing drums 24 interlocked with each other can be easily crushed while being engaged with each other when the crushing gears 30 rotate.

4 and 5, another embodiment of the shredding drum 24 is shown here.

For example, they are arranged at regular intervals along the drum longitudinal direction and are arranged at regular intervals along the drum circumferential direction and are arranged one by one with each other, and end portions partially enter into the gaps between the opposing rows facing each other. A plurality of rows of shredding rods 31 are provided.

At this time, the shredding rods 31 of each row formed integrally with the shredding drum 24 may be formed in various numbers such as four at 90 ° intervals and six at 60 ° intervals along the drum circumferential direction. Each of the crushing rods 31 to form a long and short may be alternately arranged one by one skip.

In the case of the shredding drum 24 having such a shredding rod 31, since the free space between the rods is sufficiently formed, it is particularly effective in breaking up a large lump of combustion material.

On the other hand, the bearing blocks 29 supporting both ends of each of the shredding drums 24 are plate-shaped blocks in which bearings are integrally inserted and fitted on the vertical members of the combustion chamber bottom frame 17 to be fixed by bolting or welding. Is installed in the structure.

In particular, the bearing block 29 supporting any one shredding drum 24, for example, the bearing block 29 supporting the shredding drum 24 which is not directly powered by the motor 21, has its upper and lower surfaces in the combustion chamber. It is slidably installed while being guided on the vertical member of the bottom frame 17, and its rear end is installed in a structure that is elastically supported by the spring 27 and the stopper 28 for its support.

Accordingly, one shredding drum 24 is slidable in a direction facing the other shredding drum 24, which is fixed, and this elastic slide structure is sometimes hardly crushed or has a large mass of solid combustion material. When sandwiched between the drum, the crushing gear 30 or the crushing rod 31 is damaged or the rotation is stopped to solve the problem, such as giving a load to the motor 21 to enable a smooth grinding operation can be made continuously.

At this time, the stopper 28 can be used in the form of a bolt, it is possible to adjust the elasticity of the spring 27 by adjusting its length can adjust the flow of the crushing drum 24 as necessary.

In addition, the motor 21 for the operation of each of the shredding drum 24 and the ash tray 20 is fixedly installed on the frame connecting the legs while being located at the bottom of the main body (14).

As the eccentric plate 23 is mounted on the shaft of the motor 21 and the sprocket is mounted therein, the crushing drum 24 and the ash tray 20 can be simultaneously operated by the driving of the motor 21. do.

That is, it is possible to simultaneously operate the swinging and rotating ashtray with one motor.

Therefore, the operation state of the composite ashtray device configured as described above is as follows.

In the case of boilers using solid fuel, the treatment of ash remaining during or after combustion is very important, and the treatment of such combustion materials also affects the thermal power and the combustion efficiency. Grind and whisk to dispose.

To this end, when the motor 21 is operated, the eccentric plate 23 connected to the shaft rotates, and the ash 22 connected to the upper end of the link 22 simultaneously moves the link 22 up and down together. Since the front end of the plate 20 moves up and down, the ashtray 20 shakes off the combustion material by using the protrusion 19 entering the combustion chamber 11 while moving up and down about the hinge portion 34 of the rear end. I can give it.

At the same time, the two crushing drums 24 are rotated together through the chain transmission device 25 so as to crush the lumps of the hardly packed combusted material coming in.

Here, the operation of the motor by the controller (not shown) to periodically shake off during a certain period of time during the operation of the boiler by continuously discharging the completely burned ash downwards, the solid fuel enters down sequentially and the fire hole It can be burned well without being blocked, and ashes falling down can be easily processed after being collected using a separate collection box.

In particular, the ash ashes are used to shake off the combustion materials, and at the same time, a pair of crushing drums are used to easily crush the solid mass of the combustion materials, thereby squeezing them downwards, thereby making it possible to completely process the combustion materials. Smooth processing of the material can increase the combustion efficiency of the boiler, and ultimately increase the thermal efficiency of the boiler.

In the embodiment of the present invention is merely to describe a preferred embodiment of the large-scale hot water boiler, and does not limit the technical scope of the present invention. That is, the present invention can be applied to the medium and small hot water boilers by collecting only the advantages of the structure, as shown in FIG. 7, and various modifications can be made within the technical concept, and it is natural that such modifications belong to the scope of the present invention. .

As described above, the present invention has the advantage of implementing a large-scale hot water boiler because the appropriate supply and combustion of solid fuel is possible by applying a stepped loading chamber and a combustion chamber structure.

In addition, by applying a multi-coiled heat pipe structure, it is possible to expect a good heat transfer effect as well as to protect the heat pipe, which has the advantage of obtaining high thermal efficiency while minimizing heat loss.

In addition, there is an advantage that can be easily discharged to the outside dust accumulated in the tube by installing a fan in the downward direction of the heat transfer tube.

In addition, it is possible to effectively handle the combustion material by applying the automatic reshaping device of the rocking and rotary composite type, it is possible to extend the life of the boiler further and to manage and handle the boiler safely.

In addition, there is an advantage that can be completely eliminated the irregular movement of the ash board according to the link rotation by the guide means.

In addition, by allowing both the crushing gear to be driven separately there is an advantage that can be stabilized by the ashtray work.

1 is a front configuration view showing an embodiment of a large hot water boiler according to the present invention

2 is a side view of FIG.

3 is a plan view of FIG.

4 and 5 is a configuration diagram showing another embodiment of the shredding drum in the present invention

Figure 6 is a perspective view showing a preferred embodiment for the re-attachment device of a large hot water boiler according to the present invention

 7 is a front configuration view showing a state in which the configuration of the present invention is applied to the medium and small hot water boilers

<Explanation of symbols for main parts of drawing>

10: loading chamber 11: combustion chamber

12: hot water chamber 13: ignition hole

14: main body 15: combustion heat inlet pipe

16: heat pipe 17: combustion chamber floor frame

18: ashtray device 19: projection

20: ash board 21: motor

22: Link 23: Eccentric

24: crushing drum 25: chain drive

26: gear transmission 27: spring

28: stopper 29: bearing block

30: crushing gear 31: crushing rod

32: ignition port 33: cover

34: hinge 35: guide

36: support bracket

Claims (9)

It is formed above the inner center for loading solid fuel and communicates vertically at the bottom of the loading chamber 10 while being formed below the inner center for combustion of solid fuel and the loading chamber 10 having the bottom of the hopper type. It is divided into a tube-shaped combustion chamber 11 and a storage box 10 and a hot water chamber 12 formed around the combustion chamber 11 for storage of supply and discharge hot water, and an ignition hole communicating with the combustion chamber 11 at one side thereof ( 13 is provided, and extends from the combustion heat inlet pipe 15 communicating with one side of the upper end of the combustion chamber 11 and downward in a coil form along the circumference of the combustion chamber 11 in the hot water chamber 12. Supported on the heat transfer tube 16 is arranged to extend to the outside and connected to the fan and to perform the heat transfer action using the combustion heat passing through the inside, and the combustion chamber bottom frame 17 installed in the bottom center of the main body 14 Be It is characterized in that it comprises a rocking and rotary hybrid ashtray 18 for entering the interior of the combustion chamber 11 or forming part of the bottom of the combustion chamber 11 to shake off or crush the burned ashes. Large hot water boiler using fuel. The large-scale hot water boiler using solid fuel according to claim 1, wherein the combustion chamber (11) is formed in a tapered tube shape having a narrow upper portion and a wide lower portion for smooth dropping of the solid fuel. The method of claim 1, wherein the heat pipe 16 is a large hot water boiler using a solid fuel, characterized in that consisting of at least three rows of coil-shaped pipes are concentrically arranged overlapping each other to the combustion heat inlet pipe 15 independently. . The ashtray device 18 of claim 1, wherein the ashtray device 18 is arranged side by side at the bottom of the combustion chamber 11 and is installed so as to be swingable with one hinge portion, and protrudes to the inside of the combustion chamber 11 and maintains a constant distance from each other. Ash hair plate 20 to shake off the ash using two pairs of protrusions 19, a motor 21 fixed to the leg of the boiler body, the other side of the ash hair plate 20 and the motor 21 A swing type rehabilitation device 18a connected to the shaft of the linker 22 and an eccentric plate 23 for transmitting the driving force of the motor 21 to the reattachment plate 20; Two shredding drums 24, which are horizontally arranged in parallel with each other at the center of the bottom of the combustion chamber 11 and face each other and are rotatably supported on the combustion chamber bottom frame 17 so as to crush the combustion material placed on the top thereof. In order to drive the shredding drum 24, a gear transmission 25 is connected between the shaft of the motor 21 and one shredding drum 24 and gears that are meshed with each other and mounted on the shredding drums 24. Large hot water boiler using a solid fuel, characterized in that comprises a rotary ashtray device (18b) consisting of a device (26). The method according to claim 1 or 4, wherein one of the two shredding drums (24) of the ashtray (18) is guided up and down on the combustion chamber bottom frame (17) while simultaneously supporting the spring (27) and the stopper (28) supporting it. A large hot water boiler using solid fuel, characterized in that both ends of the shaft is supported by the bearing block 29 receiving the rear end elastic support and installed in a slidable direction facing the other one. The method according to claim 1 or 4, the two shredding drums 24 of the ashtray 18 are arranged at regular intervals along the drum longitudinal direction and are arranged one by one while the other end portion is partially overlapped between the overlapping position between them Large hot water boiler using a solid fuel, characterized in that a plurality of crushing gear (30) is provided. The method of claim 1 or 4, wherein the two shredding drums 24 are arranged at regular intervals along the drum longitudinal direction and at regular intervals along the drum circumferential direction and are arranged one by one in a row and partially end therebetween. Large hot water boiler using a solid fuel, characterized in that a plurality of rows of crushing rods 31 are entered to overlap. According to claim 1 or 4, the two shredding drums 24 of the remounting device 18 is mounted on the shaft of the motor 21 side by side with the sprocket and the electric gear, side by side installed on one side of the motor 21 The shaft on the support bracket 36 is equipped with another electric gear which rotates in engagement with the electric gear and another sprocket which rotates together, and at each end of the two crushing drums 24, each chain Each sprocket connected to the motor side and the support bracket side sprocket through which power is transmitted is mounted, so that the solid fuel can be rotated by receiving power individually by the driving of the motor 21. Large hot water boiler. The method of claim 1 or 4, the ashtray plate 20 of the ashtray device 18 is supported in the guide 35 having a long incision groove while being disposed long downward while being supported between the leg side of the main body 14, A large hot water boiler using solid fuel, characterized in that the guide can be guided when swinging.