KR100781633B1 - Large-sized hot-water boiler using solid fuel - Google Patents

Abstract

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

According to the present invention, it is possible to input and load a large amount of solid fuel into a loading chamber, and at the same time, to supply an appropriate amount of solid fuel through a stepped loading chamber and a combustion chamber structure capable of supplying and combusting an appropriate amount of solid fuel in a combustion chamber. By enabling the combustion, it is possible to construct a hot water boiler system suitable for a large capacity, while the heat pipes installed inside the hot water chamber are composed of several lines arranged in a straight line, and the front and rear of the heat pipes. By configuring the passage to be selectively opened, high heat efficiency can be obtained while minimizing heat loss by securing sufficient heat transfer area, and the heat of combustion can be introduced from the upper part of the combustion chamber to the heat transfer tube to protect the heat pipe from high temperature heat of combustion. Especially, all the passages of the heat pipe can be easily opened to make the internal cleaning very easy. To do so provides a solid fuel combustion boiler large heated to obtain a long life effect of improving the thermal efficiency of the boiler and the boiler.

In addition, the present invention by applying a composite ashtray device consisting of a combination of a rotating method and a swinging method that repeatedly moves up and down through the eccentric structure to rotate while contacting each other through a gear structure, such as a large solid combustion material By effectively pulverizing and discharging, it is possible to increase the thermal efficiency of the boiler due to the rapid and complete removal of the combustion material, and ultimately to make the overall management and handling of the hot water boiler safe and easy, Can be arranged in an array to enable efficient filtration of the combustion materials, and by the easy operation of solid fuel by using a motor-driven elevating device, it is possible to reduce the pollutants in the combustion gas discharged to the atmosphere as much as possible. The worker can transfer solid fuel without effort. Therefore, it provides a solid fuel combustion hot water boiler that can proactively cope with environmental pollution prevention and protect workers from the risk of safety accidents.

Solid fuel, large hot water boiler, stepped loading chamber / combustion chamber, aisle heating tube, composite ashtray

Description

Large-sized hot-water boiler using solid fuel

1 is a front view showing a preferred embodiment of the solid fuel combustion type hot water boiler according to the present invention

2 is a side view of FIG. 1

3 is a plan view of FIG.

Figure 4 is a front view showing a preferred embodiment of the ashtray apparatus in a solid fuel combustion type hot water boiler according to the present invention

5 is a plan view of FIG.

Figure 6 is a front view showing the arrangement of the shredding drum in the ashtray of the solid fuel combustion type hot water boiler according to the present invention

7 is a plan view of FIG.

<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: ashtray

18: blower device 19: protective plate

20a, 20b: cover 21: partition plate

22: shredding drum 23: motor

24: drive chain device 25: electric chain device

26: bearing block 27: return spring

28: crushing rod 29: collection pipe

30: blower 31: vertical plate

32: duct 33: chamber

34: drawer dust collector 35: lifting motor

36: platform 37: guide rail

38: guide roller 39: lifting device

40: bracket 41: cover

42: ladder 43: guardrail

44 connector

The present invention relates to a large-capacity hot water boiler using solid fuels such as coal, coke, and coal briquettes, and more particularly, has a stepped loading chamber and combustion chamber structure capable of effectively supplying and combusting solid fuels, and excellent heat transfer effect. Selective opening-type dense heat pipe structure that can be expected and facilitates internal cleaning, rocking and rotary type automatic reshaping device for proper treatment of combustion materials, efficient discharge and filtration of combustion gas By providing a large-scale hot water boiler including a blower device that can be used and a lifting device that facilitates the injection of solid fuel, it is possible to safely and easily manage, and in particular, the inside of the heat pipe can be easily cleaned to achieve high thermal efficiency. Can extend the life of the boiler, and supply and burn solid fuel, Lee, such as the flow of exhaust gas directed to a solid fuel combustion boiler appropriate for large heated mass of hot water boiler according to the organic smoothly constituted by any.

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 solid fuel have a disadvantage in that a large amount of lead loss through the outer wall of the combustion chamber is caused by simply burning the fuel at the bottom of the hot water tank, and thus, the overall thermal efficiency is low. 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 or briquettes have many types and various characteristics, so most of them are entangled with each other in the combustion chamber after combustion to give a hard and large mass. As it hardens, it is hard to expect a great effect with conventional ashtrays, such as pulverization alone, which cannot be pulverized and discharged.

In addition, the existing hot water boilers are mostly small-capacity, and these are used in a large-capacity structure due to structural limitations in the loading chamber or the combustion chamber, which are difficult to properly supply solid fuel, combust, and effectively treat the combustion materials. There is a limit to this, and thus, it is unable to actively cope with the demand in related fields that require a large capacity hot water boiler.

In addition, most of the existing hot water boilers are not easy to clean the inside because the heat transfer tube is a coiled structure, and the cleaning is sometimes performed by blowing the combustion material accumulated in the inside of the pipe using compressed air. Although it is performed, it is almost impossible to completely remove the combustion material residues, etc. adhered to the wall surface, which has the disadvantage that the thermal efficiency is lowered and the service life is shortened as the use period elapses.

In addition, the existing hot water boilers are very vulnerable in terms of preventing environmental pollution, such as acting as a factor causing environmental pollution, since the combustion gas is sucked into the blower without any filtration treatment and then discharged into the atmosphere through the duct. Is showing.

Accordingly, the present invention has been made in view of the above, and a stepped stack capable of supplying and loading a large amount of solid fuel in a loading chamber and at the same time supplying and burning an appropriate amount of solid fuel in a combustion chamber. It is an object of the present invention to provide a solid fuel combustion type hot water boiler capable of constructing a hot water boiler system suitable for a large capacity by enabling proper supply and combustion of solid fuel through the chamber and combustion chamber structure.

In addition, the present invention consists of a structure in which the heat pipes installed inside the hot water chamber are arranged in a dense line of lines arranged in a straight line, and configured to selectively open the front and rear passages of the heat pipes, thereby providing sufficient heat transfer area. High heat efficiency can be obtained by minimizing heat loss, and the heat of combustion can be introduced from the upper part of the combustion chamber to the heat pipe side to protect the heat pipe from the high temperature combustion heat.In particular, all the passages of the heat pipe can be easily opened to clean the inside. It is another object to provide a solid fuel-fired large-scale hot water boiler that can be carried out very easily so that it is possible to improve the thermal efficiency of the boiler and to extend the life of the boiler.

In addition, another object of the present invention is to apply a composite ashtray device consisting of a combination of the rotation method that rotates while contacting each other through the gear structure and the swinging method repeatedly moving up and down through the eccentric structure of the large solid hardened By effectively combusting and discharging the combustion materials, it is possible to increase the thermal efficiency of the boiler due to the rapid and complete removal of the combustion materials, and ultimately the solid fuel which can safely and facilitate the overall management and handling of the hot water boiler. To provide a large combustion hot water boiler.

In addition, the present invention by placing a plurality of diaphragm arrangement in the form of an arrangement to enable efficient filtration of the combustion material, and by the easy operation of the solid fuel using a lifting device operated by a motor drive, the combustion gas discharged into the atmosphere It is possible to reduce the pollutants in the water as much as possible, to move the solid fuel without effort, and thus to actively deal with environmental pollution prevention and to protect the worker from the risk of safety accidents. Another purpose is to provide a boiler.

The present invention for achieving the above object is formed at the top of the inner center for the loading of the solid fuel and having a hopper-shaped bottom portion, and is formed at the bottom of the loading chamber while being formed below the inner center for the combustion of the solid fuel A main body having a tubular combustion chamber connected vertically in length and a hot water chamber formed around the loading chamber and the combustion chamber for storage of supply and discharge hot water, and having a ignition hole communicating with the combustion chamber at one side thereof; It extends from the combustion heat inlet pipe communicating with one side of the upper end of the combustion chamber and is arranged in a form in which a plurality of side-by-side pipes are concentrated along the side surface of the combustion chamber in the hot water chamber and communicates with the outside, and is transferred using the combustion heat passing through the inside. At least two sets of heat pipes to perform an action; It is supported on the frame installed in the lower part of the main body is placed on the bottom of the combustion chamber and swinging and rotating hybrid rehairing device to enter or the inside of the combustion chamber to shake off or crush the burned ash and ; It is installed on the outer side of the main body is connected to the discharge side of the heat pipe is characterized in that it comprises a blower device for forcibly discharging the combustion gas to the outside.

In addition, the inside of the combustion chamber is located at a certain distance from the inlet of the combustion heat inlet pipe is characterized in that it is provided with at least two protective plates to prevent clogging by solid fuel.

In addition, the heat pipes are arranged in a dense shape of a long rectangular block shape in which a plurality of horizontally parallel pipes form a row and a column, and the front and rear ends of each pipe to independently connect two up and down pipes arranged in the same column. At the same time, each cover is finished with a partitioned cover at the same time, the front and rear each cover is characterized by consisting of a structure so that the flow of combustion heat can proceed in a zigzag form through each pipe.

In addition, each of the pipes is characterized in that it has a length corresponding to the width before and after the frame of the body.

In addition, the inner surface of the cover is partitioned into a plurality of independent spaces by a grid-shaped partition plate standing at a certain height while maintaining an area capable of accommodating at least two pipes up and down.

In addition, the cover is mounted on the frame outer wall surface of the main body using a flange portion up and down in a removable structure by screw or bolt fastening method.

In addition, the ashtray device is at least two pairs of shredding drum for crushing the combustion material placed on the upper side rotatably supported by the bracket on the lower frame of the main body while being horizontally arranged side by side and at the same time facing each other at the bottom of the combustion chamber; And a drive chain device connected between the motor side and each pair of the shredding drums for transmitting the motor power to each of the shredding drums, and a pair of motors for driving the shredding drums. It is characterized by consisting of a chain device for.

In addition, the two pairs of shredding drum of the ashtray device is characterized in that the shaft is supported by the bearing block is guided up and down on the bracket is installed in a structure capable of sliding a predetermined section in the direction facing each other between the drums.

In addition, a return spring is connected between two shafts of two shredding drums disposed on the outside of the paired shredding drums so that a constant proximity state between the drums can be maintained.

In addition, two pairs of 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 partially enter between the overlapping positions. It is characterized in that a plurality of rows of crushing rods are provided.

In addition, the rotation center axis of the two pairs of crushing drum is characterized in that the eccentric shaft that can draw the swing trajectory in the vertical direction during rotation.

In addition, the blower device is installed on one side of the outer rear portion of the main body while being connected to the collection pipe, the blower communicating with the collection pipe, and the discharge side of the blower tube to collect the final discharge port of the heat transfer pipe into one, and there is a predetermined interval in one direction therein At the same time, it has a vertical plate that is arranged up and down one by one at the same time and is characterized by consisting of a dust collecting chamber having a duct communicating with the outside.

In addition, the chamber of the blower device is characterized in that it further comprises a draw-type dust collector that can be stored / withdrawn.

In addition, the main body is composed of a lifting motor using a wire traction method, a lifting platform equipped with the lifting motor, a guide rail and guide rollers for guiding the lifting and lowering of the lifting platform to further carry a lifting device capable of carrying solid fuel upwards. It is characterized by including.

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

1 to 3 are a front view, a side view and a plan view showing a preferred embodiment of the solid fuel combustion type hot water boiler according to the present invention.

As shown in Figures 1 to 3, the body 14 of the hot water boiler is made of a substantially rectangular tubular structure, it is possible to maintain a constant height while being stably supported in the frame structure of the rectangular frame.

The interior of the main body 14 is largely divided into subdivisions, the central portion is composed of a loading chamber 10 that can fill the solid fuel, the lower portion is composed of a combustion chamber 11 directly 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 parts for circulation of the outside and the water, so that the water can be supplied or used to draw out hot water.

In addition, the loading chamber 10 is a place that can fill the solid fuel, such as coal, briquettes, etc. If the solid fuel is filled in the interior of the lower combustion chamber 11 is stacked up.

In addition, one side of the combustion chamber 11 is connected to the ignition opening 32 communicating with the outside, and after opening the door of the ignition opening 32, 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 cover 41, it is possible to replenish the solid fuel consumed at any time after opening the cover 41.

In particular, the loading chamber 10 and the combustion chamber 11 has an effective structure capable of supplying and burning only an appropriate amount of solid fuel while accommodating a large amount of solid fuel at a time.

To this end, the loading chamber 10 has a structure in which the bottom portion is narrowed in the form of a hopper, so that a large amount of solid fuel can be loaded at a time, and solid fuel filled in the loading chamber is naturally supplied downward while supplying an appropriate amount. The combustion chamber 11 has a structure extending vertically vertically downward while passing through the same area as the lower end of the loading chamber 10 so that the solid fuel can be smoothly sent to the combustion region below without clogging. do.

That is, in such a stepped structure of the loading chamber and the combustion chamber, a constant amount is constantly supplied to the combustion chamber side even when a large amount of solid fuel is input. Compared to the loading chamber and the combustion chamber of the tubular structure, the thermal efficiency can be effectively managed and controlled, and thus it is possible to construct a hot water boiler system suitable for a large capacity.

On the other hand, the present invention provides a lifting device (39) that can be carried out more easily and effortlessly for the supply of solid fuel.

To this end, one side of the main body 14 is provided with a lifting platform 36 having a predetermined area for loading solid fuel, and a pair of guide rollers 38 are attached to both ends of the lifting platform 36, respectively. As it is movable along both guide rails 37 which are installed perpendicular to the frame structure of the main body 14, the platform 36 can be raised and lowered up and down using the guide roller 38 as a wheel means. do.

Power for raising and lowering the platform 36 is provided with a lifting motor 35 of the wire traction method mounted in the platform 36.

The lifting motor 35 may use a conventional one, for example, after fixing one side of the wire to the upper end of the frame structure, and then continuously extending the other side of the wire down through a plurality of idlers, and then the lifting motor 35. When connected to the winding drum of the lifting and winding the wire by the winding drum, the lifting platform 36 including the lifting motor 35 can be raised and lowered up and down.

Thus, the elevating device 39 provides a convenience for the operator to save the effort of lifting the heavy fuel directly up to the upper portion of the body (14).

In order to replenish the solid fuel, the operator must climb to the upper portion of the main body 14 and fill the solid fuel transported upward by using the elevating device 39 in the loading chamber 10. In this case, the side of the frame structure of the main body 14 And the upper edge is provided with a ladder 42 and the guard rail 43 is able to safely protect the worker from dangers such as falling.

In addition, the present invention provides a heat transfer tube structure that can effectively utilize the high temperature heat source of the combustion gas generated during combustion and at the same time can easily clean the inside of the tube.

To this end, the heat transfer tube 16 has a form in which a plurality of side-by-side tube is concentrated along the side of the combustion chamber 11 in the internal space of the hot water chamber (12).

For example, the heat pipe 16 is arranged regularly in a row (left and right direction) and a row (left and right direction) in a horizontal line across the front and back of the body 14, but as a whole long Placed close to each other to form a rectangular block shape, the front and rear ends of each of these pipes are respectively finished with covers 20a and 20b, which are partitioned to independently connect two upper and lower pipes arranged in the same row. In addition, the front and rear covers 20a and 20b are alternately mounted in a row, that is, the cover 20a closing the front end of the pipe is mounted one row lower than the cover 20b closing the rear end. Thus, the flow of combustion heat can be carried out in a zigzag form through each pipe.

In other words, the heat of combustion flowing through one pipe roll flows downward from the side with the cover 20a, 20b toward the pipe below it, and continues with this bending several times. Through the final discharge.

In a preferred embodiment of the present invention, a combination of three rows and five columns of pipes is employed, and two sets of these pipe combinations are arranged side by side on both sides of the combustion chamber 11, respectively.

Therefore, in the present invention, it is possible to secure the combustion gas traveling path of six rows on each side having independent paths.

The pipes disposed at the uppermost portion of the heat transfer tube 16 are connected to the combustion heat inlet tube 15 communicating with the inner upper portion of the combustion chamber 11, and the pipes disposed at the lower portion communicate with the blower device 18. 29, the combustion heat introduced into the pipe from the combustion chamber 11 through the combustion heat inlet pipe 15 passes through the pipes of each row in a zigzag fashion, in turn, through the final collecting pipe 29 and through the blower device 18. It can be sent to the side.

Here, the combustion heat inlet tube of the heat transfer tube 16 is formed 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 burned. 15) can be protected.

In particular, a guard plate 19 fixed to the wall surface of the combustion chamber 11 while maintaining a constant distance is installed in front of the inlet of the combustion heat inlet tube 15 into which the combustion heat is first introduced. It becomes possible to completely exclude the problem of blockage (15).

In addition, in order to bend the direction of combustion heat flow between the pipes of the heat transfer tube 16, the inner surface of the cover (20a), (20b) has a grid shape that is at a certain height while maintaining an area that can accommodate at least two pipes up and down The partition plate 21 is provided, and according to the embodiment of the present invention, the inner surfaces of the covers 20a and 20b are divided into six independent zones, and each of the two partitioned zones is divided into two separate zones. Since the two pipe ends are in communication with each other, it becomes possible for the heat of combustion to proceed in a direction in which the end of the pipe belongs.

Covers 20a and 20b provided in one embodiment of the present invention are sized to finish 12 pipe ends at the same time, the size of such a cover may vary depending on the number of pipes, It is preferable to use a heat insulating material for the cover.

Such covers 20a and 20b are mounted in a detachable structure, for example, by a screw or bolt fastening method on a frame outer wall of the main body 14 using upper and lower flange portions. In the mounted state, the inner partition plates 21 of the covers 20a and 20b can accommodate two pipe ends, one each up and down, in one isolated space, and the covers 20a and 20b as necessary. Removing only) makes it easy to clean the inside of the pipe.

For example, if the cover 20a, 20b which blocks the front and the back of each pipe of the heat exchanger tube 16 is removed, each pipe will be in the state which the front and back were perforated as it is, and the pipe length is also the main body 14 It has a length corresponding to the width before and after the frame structure, so that the operator can easily remove from the outside, such as the haul attached to the inner wall of the pipe or the combustion material accumulated on the floor.

That is, since the worker can directly clean the inside of the pipe that is drilled back and forth with a cleaning tool such as a stick or a brush, it is possible to expect an almost perfect cleaning effect that cannot be compared with a conventional coil type heat pipe, and this cleaning is easy. This facilitates boiler management and handling, and can significantly reduce heat loss due to clogging of heat pipes, and can significantly extend the life of boilers.

In addition, the present invention provides a blower device 18 that can more smoothly proceed the combustion heat, that is, the flow of the combustion gas.

The blower device 18 is installed at the end of the heat transfer pipe 16 which extends out of the main body 10 to the outside, and at this time, the end of the heat transfer pipe 16, which is the final discharge portion of the combustion gas, is used as the total heat transfer pipe height. In the lowermost position, by installing the blower device 18 connected thereto, it is possible to more effectively suck out the dust contained in the combustion gas when the combustion gas is inhaled.

To this end, the blower device 18 is arranged horizontally on the lower end of the rear surface of the main body 14 to support the frame structure to bring the final outlet of the heat pipe 16, for example, the lower six pipe ends of each row into one. The main body 14 while being connected to the discharge side by the collection pipe 29, the blower 30 which communicates by the intermediate | middle length part of the collection pipe 29, and the connection pipe 44, and one side of the blower 30. Consists of a dust collecting chamber 33 is installed on one side of the outer rear, the combustion gas by using the operation of the blower 30 serves to suck.

That is, the suction side of the blower 30 is connected to the collection pipe 29 side, the discharge side is connected to the dust collecting chamber 33 side, so that the combustion gas in the collection pipe 29 is collected when the blower 30 is operated. It is possible to proceed to the chamber chamber 33 side.

At this time, the blower 30 is installed in a structure that is supported on the upper portion of the connecting pipe 44, and in the case of the connecting pipe 44, one end (the opposite side of the collecting pipe side) is closed with a cover that can be opened and closed therein. It can make cleaning easier.

In particular, the inside of the dust chamber 33 is disposed at a predetermined interval along one direction, and at the same time one vertical plate 31 which is arranged up and down one by one is installed in one direction by the output of the blower (30) The combustion gas flowing into the exhaust gas is discharged to the outside after the direction is deflected several times as the flow hits each vertical plate 31, so that the combustion gas discharged to the outside becomes a state in which a large amount of contaminants such as dust are removed. .

In addition, the lower part of the dust collecting chamber 33 is provided with a draw-type dust collector 34 that can be stored / withdrawn, thereby effectively collecting dust and the like falling down the vertical plate 31 in the drawer-type dust collector 34. If a certain amount is collected, it can be easily taken out and processed.

In addition, the rear end side of the dust collecting chamber 33 is provided with a duct 32, through which the combustion gas is discharged to the final atmosphere.

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 hybrid ashtray 15 that uses a motor as a power source.

The re-mounting device 17 of the complex means that both the up and down rocking motion and the rotary motion to perform at the same time.

That is, the composite ashtray device 17 can process the combustion material in such a manner that the combustion material is directly crushed while rotating and swinging up and down.

The components of the ashtray device 17 are installed in a structure supported by the lower frame structure of the main body 14 while constituting the bottom of the combustion chamber 11.

As shown in FIGS. 4 and 5, the ashtray device 17 has two pairs of crushing drums 22 which perform a crushing operation substantially with one motor 23 installed on the lower frame structure as a driving source. In this case, the two pairs of shredding drums 22, that is, four shredding drums 22 are parallel to each other at the bottom of the combustion chamber (11) at the same time horizontally arranged in a state facing each other on the lower frame structure Both ends of the drum are rotatably supported on two brackets 40 which are installed back and forth, that is, the shafts of both ends of each drum are supported by the bearing block 26 mounted on the bracket 40 and placed thereon. You will work to grind the material.

In order to drive the two pairs of shredding drums 22, two drive chain devices 24 each assigned to each pair and each electric chain device 25 connected between two drums forming one pair. ) Is provided.

The chain device is composed of a sprocket and a chain. For example, two sprockets are mounted together on one drum shaft of a pair of shredding drums 22, and one sprocket is mounted on one drum shaft. A chain is connected between any one sprocket of each pair of drum shafts, so that transmission between a pair of drums is possible, and two pairs of sprockets of the shaft of the motor 23 and each pair of drum shafts The chains are connected between the other sprockets, respectively, to enable driving between the motor and the drum.

Therefore, the power of the motor 23 is transmitted to the pair of shredding drums 22 by the drive chain device 24, and the two drums constituting the pair of shredding drums 22 are driven by the electric chain device ( 25, the two pairs of four crushing drums 22 can be rotated at the same time by the operation of the motor 23.

In addition, the bearing block 26 supporting both ends of the shredding drum 22 is a plate-shaped block in which the bearings are integrally inserted and fitted into slots formed in the lengthwise direction of the bracket 40 to face each other between drums. It is provided so that a slide movement is possible in a viewing direction, ie, a direction perpendicular to the drum axis.

Here, the moving limit distance of the bearing block 26, that is, the distance in which the four bearing blocks installed while contacting each other as much as possible can be restrained by the length of the slot.

Of course, each of the bearing blocks 26 at this time is only movable until the chain is as tight as possible.

That is, since the chain is normally returned in a relaxed state (slightly down), it has a slight margin of tension, so that the bearing block 26 can be moved only at this margin. .

In addition, a return spring 27 is connected between two shafts of the two shredding drums 22 disposed on the outside of the two shredding drums 22, and thus the gap between the drums is maintained by the force of the spring. You can restore it.

Accordingly, the four crushing drums 22 are slidable in the direction facing each other using the bearing block 26, and this elastic slide structure is sometimes not easily crushed or a large amount of solid combustion material is sandwiched between the drums. When the drum or the crushing rod 28 to be described later is damaged or the rotation is stopped to solve the problem of giving a load to the motor 23 to enable a smooth grinding operation can be made continuously.

In particular, the two pairs of shredding drums 22 of the ash cutter 17 are equipped with a plurality of shredding rods 28 that can more effectively crush the combustion material.

For example, as shown in Figs. 6 and 7, arranged at regular intervals along the drum longitudinal direction and at regular intervals along the drum circumferential direction, are arranged one by one with each other, and between the relative rows facing each other. A plurality of rows of crushing rods 28 are provided, with the ends partially entering within the gap of.

At this time, the shredding rods 28 of each row formed integrally with a predetermined length in the shredding drum 22 may be formed in various numbers such as four at 90 ° intervals and six at 60 ° intervals along the drum circumferential direction. Can be.

In addition, when the angles of the crushing rods 28 formed on the two drums in the pair of crushing drums 22 are viewed in the circumferential direction, mutually constant phase differences (for example, 45 ° phase difference as shown in FIG. 6) By having a, the crushing rods 28 of both sides can be pulled and crushed by the combustion material lump with a time difference from each other, thereby increasing the crushing force applied to the combustion material lump.

In the case of the crushing drum 24 having such a crushing rod 28, since the free space is sufficiently formed between the rods, it is particularly effective for crushing a large lump of combustion material.

In addition, the crushing drum 22 provided in the present invention is able to pulverize and shake off the combustion material more powerfully as well as the above-described rotational movement as well as up and down rocking movement.

To this end, the rotation center axis of the two pairs of shredding drum 22 is an eccentric shaft, so that the swing trajectory can be drawn in the vertical direction during the rotation of the shredding drum 22, that is, inside the upper part of the combustion chamber 11. As the drum enters, the combustion material can be squeezed into the combustion material, thus effectively crushing and shaking off the lumps of the combustion material that are tangled or stuck together.

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 23 is operated, two pairs of the crushing drums 22 are rotated through the driving chain device 24 and the electric chain device 25 while being stuck in between them. These can be ground using a crushing rod 28.

Here, the operation of the motor 23 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 The hole can be burned well without being blocked, and the ash falling down can be easily processed after being collected using a separate container.

In particular, by using the crushing rods 28 of the crushing drum 22 to crush the combustion material and at the same time the whole crushing drum 22 swings up and down while drawing a larger circular path up and down, You can easily crush the lump of combusted material and whisk it down.

The smooth treatment of the combustion material can increase the combustion efficiency of the boiler and ultimately increase the thermal efficiency of the boiler and at the same time extend the life of the boiler.

As described above, the present invention is capable of inputting and loading a large amount of solid fuel by applying a stepped loading chamber and combustion chamber structure, and supplying and burning an appropriate amount of solid fuel, so that a hot water boiler system suitable for a large capacity can be constructed. There is an advantage.

In addition, it is possible to secure a sufficient heat transfer area and easily perform internal cleaning by applying a dense heat transfer tube structure that can open the passage, and thus it is possible to obtain high thermal efficiency while minimizing heat loss. It is easy to improve the thermal efficiency of the boiler and has the advantage of obtaining the effect of extending the life of the boiler.

In addition, it is possible to effectively grind and discharge the hardened solid mass of the combustion material by applying a rotary ashing device of the rotation method and swinging method, thereby improving the thermal efficiency of the boiler according to the rapid and complete removal of the combustion material. Of course, there is an advantage that the overall management and handling of the hot water boiler can be safe and easy.

In addition, by applying the diaphragm structure that can filter the combustor and the lifting device for transporting the solid fuel, it is possible to efficiently filter the combustor and to easily input the solid fuel, so that it can actively cope with environmental pollution prevention. There is an advantage that can reduce the effort and protect from the risk of safety accidents.

Claims (14)

It is formed on the upper side of the inner center for loading solid fuel and has a hopper-shaped bottom part, and is formed below the inner center for the combustion of solid fuel, and is vertically constant at the bottom of the loading chamber 10. And a hot water chamber 12 formed around the loading chamber 10 and the combustion chamber 11 for the storage and supply of hot water which can be supplied and discharged. A main body 14 equipped with an ignition port 13 communicating with 11); While extending from the combustion heat inlet pipe 15 communicating with one side of the upper end of the combustion chamber 11, a plurality of side-by-side pipes are arranged in the hot water chamber 12 along the side portion of the combustion chamber 11, and are in communication with the outside. At least two sets of heat transfer tubes 16 configured to perform heat transfer using combustion heat passing through the inside; It is placed on the bottom of the combustion chamber 11 while being supported on a frame installed in the lower part of the main body 14 and enters the inside of the combustion chamber 11 or shakes or combusts the combusted ash while forming the bottom of the combustion chamber 11. Oscillating and rotating hybrid rehair device 17; In the solid fuel combustion type hot water boiler comprising a; blower device 18 is installed on the outer side of the main body 14 and connected to the discharge side of the heat transfer tube 16 for forcibly discharging the combustion gas to the outside. The inside of the combustion chamber 11 is located at a certain distance away from the inlet of the combustion heat inlet pipe 15, at least two protective plates 19 to prevent clogging by solid fuel is provided, characterized in that the solid fuel combustion large Hot water boiler. delete According to claim 1, The heat pipe 16 is a plurality of horizontally parallel pipes arranged in rows and columns in a long rectangular block-shaped dense form, the front and rear ends of each pipe is arranged in the same row 2 up and down pipes Each cover 20a, 20b, which is partitioned to connect each other independently, is finished at the same time, and the front and rear covers 20a, 20b are alternately mounted in a row with each other so that the flow of combustion heat is zigzag through each pipe. Solid fuel combustion type hot water boiler, characterized in that the structure made to proceed in the form. The solid fuel combustion type hot water boiler according to claim 3, wherein each of the pipes has a length corresponding to a width before and after the frame of the main body (14). The inner surface of the cover (20a, 20b) is a plurality of partition plate 21 by the grid-shaped partition plate which is set at a certain height while retaining an area capable of accommodating at least two pipes of up and down. Solid fuel combustion type hot water boiler, characterized in that partitioned into an independent space. The method according to claim 3 or 5, characterized in that the cover (20a, 20b) is mounted on the frame outer wall surface of the main body 14 in a detachable structure by screw or bolt fastening using the upper and lower flanges. Solid fuel combustion type hot water boiler. The upper rewinder 17 is rotatably supported at both ends rotatably on the bracket 40 on the lower frame of the main body 14 while being horizontally arranged in parallel with each other at the bottom of the combustion chamber 11 and facing each other. At least two pairs of shredding drums 22 for pulverizing the combustion material to be placed, the motor 23 for driving the shredding drums 22, and the power of the motor 23 to each of the shredding drums 22. It consists of a drive chain device 24 connected between the motor 23 side and each pair of shredding drums 22 and a transmission chain device 25 connected between each pair of shredding drums 22 for transmission. Solid fuel combustion type large on-boiler, characterized in that. The two pairs of crushing drums 22 of the ashtray device 17 are supported on both ends of the drum by bearing blocks 26 which are guided up and down on the bracket 40 so as to face each other between drums. Solid fuel combustion type hot water boiler, characterized in that it is installed in a structure that can slide a certain section in the viewing direction. The method according to claim 8, wherein the return springs 27 are connected between the shafts of the two crushing drums 22 on both sides of the pair of crushing drums 22 to maintain a constant proximity between the drums. Solid fuel combustion type hot water boiler, characterized in that. The method according to claim 1 or 7, wherein the two pairs of shredding drums 22 of the ashtray device 17 are arranged at regular intervals along the drum longitudinal direction and at regular intervals along the drum circumferential direction and arranged one by one Solid fuel combustion type hot water boiler, characterized in that a plurality of rows of crushing rods 28 are provided to overlap the end portion is partially entered therebetween. The solid fuel combustion type hot water boiler according to claim 1 or 7, wherein the rotation center axes of the two pairs of crushing drums (22) are eccentric shafts capable of drawing rocking traces in the vertical direction during rotation. The blower device (18) according to claim 1, wherein the blower device (18) includes a collection pipe (29) for collecting the final discharge port of the heat transfer pipe (16), a blower (30) communicating with the collection pipe (29), and the blower (30). It is connected to the discharge side and is installed on one side of the outer rear part of the main body 14 and has a vertical plate 31 which is arranged at regular intervals along one direction and is arranged upside down one by one and the duct 32 communicating with the outside. Solid fuel combustion type hot water boiler, characterized in that consisting of a chamber (33) for collecting dust. 13. The solid fuel combustion type hot water boiler according to claim 12, characterized in that the chamber (33) of the blower device (18) further comprises a drawable dust collector (34) capable of receiving / drawing. 2. The guide of claim 1, wherein the main body 14 includes a lifting motor 35 using a wire traction method, a lifting table 36 on which the lifting motor 35 is mounted, and a lifting guide of the lifting table 36. Solid fuel combustion type hot water boiler characterized in that it further comprises a lifting device (39) consisting of a rail (37) and a guide roller (38) to carry up the solid fuel.

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