KR20170082720A

KR20170082720A - Combustion apparatus having one body of cyclone

Info

Publication number: KR20170082720A
Application number: KR1020160001839A
Authority: KR
Inventors: 오성조; 성형규; 이정진
Original assignee: 주식회사 가나; 오성조
Priority date: 2016-01-07
Filing date: 2016-01-07
Publication date: 2017-07-17

Abstract

The cyclone integrated type combustion apparatus having the conical combustion furnace for burning the solid fuel according to the present invention comprises an outer case (2) having a conical outer shape which is hollow and hollow and whose upper part is narrower than the lower part, (1) having a solid fuel combustion region in which a first inner combustion chamber (3) and a second inner combustion chamber (4) are arranged in the same line to constitute a furnace wall and to which compressed air is supplied; A cover plate (10) covering the top surface of the furnace (1); An enclosure bottom plate 11 coupled to the top of the lid plate 10; An outer casing (20) having cylindrical outer casings (21) and inner casings (22) of different diameters arranged on the same line and fixed to the upper surface of the outer casing bottom plate (11); A communication barrel 20 which is located inside the inner barrel 22 of the outer barrel 20 and which is fixed in a state of passing through the cover plate 10 and the outer bottom barrel plate 11 at the same height as the upper end of the barrel 20 24); An upper plate (29) coupled to an upper opening of the outer case (20) and having a gas outlet (29a) formed at a central portion thereof; And a fuel mixing hopper 40 connected to the combustion furnace 1 for supplying solid fuel F and a fuel mixing blowing pipe 42. The outer case 2 and the first inner case 3, an annular outer air circulation path 7 is formed between the first inner case 3 and the second inner case 4 and an inner air circulation path 8 is formed between the first inner case 3 and the second inner case 4. The outer air circulation path 7 And the inner air circulation path 8 are connected to each other through the lower communication hole 9. A second outer air circulation path 23 is formed in the clearance space between the outer cylinder 21 and the inner cylinder 22, A second inner air circulation path 27 is formed in the clearance space between the combustion cylinder 24 and the inner cylinder 22 and the lower ends of the air circulation path 27 are connected to each other through the upper communication hole 39, A first blower 31 for supplying compressed air (A) for combustion to the inside of the second outer air circulation passage 23 and the combustion chamber 24; And a fuel mixing blower pipe (42) for conveying and mixing the solid fuel (F) supplied from the fuel hopper (40) into the combustion furnace (1) And a second blower (41) for blowing air between the case (4) and the combustion cylinder (24).

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a cyclone integrated type combustion apparatus having a conical combustion furnace for combusting solid fuel,

The present invention relates to a combustion apparatus employing a combustion-type cyclone which burns a solid fuel such as wood chips, wood chips, twigs, pellets or RPF to generate a high-temperature combustion gas, and minimizes dust generated during combustion.

BACKGROUND ART Conventionally, as a combustion device for burning a solid solid fuel such as a wood chip, a wooden debris, a twig, a pellet or an RPF instead of a liquid fuel and a gaseous fuel, the combustion air is circulated in the combustion furnace, And has a structure employing a centrifugal combustion method in which the space in the combustion furnace is divided into a plurality of combustion regions to efficiently combust combustible materials in the combustion furnace.

Such a combustion device converts air that has flowed in from the outside into tangential airflow by supplying the air in a direction tangential to the outer circumferential surface of the combustion chamber (outer circumferential surface), introduces the rotating air into the inner circumferential surface of the combustion chamber Therefore, it is lowered while turning, and the combustion air is supplied to the combustion region in the combustion chamber.

As a result, the incombustible material incompletely combusted in the combustion chamber is mixed with the air flow circulating by the centrifugal force, thereby improving the combustion efficiency.

However, in the conventional combustion apparatus, since the combustion apparatus is not considered to treat the ashes contained in the combustion gas in the combustion chamber, only the soot is discharged, and it occurs relatively frequently when the solid fuel is burned, The ash resulting from incomplete combustion of a substance or an inorganic substance is deposited on the surface of the solid fuel of the inner unburned fuel of the fuel tank below the combustion chamber.

Such deposits significantly deteriorate the combustion efficiency in the combustion chamber, so that it is difficult to maintain the combustion continuously for a long period of time while maintaining a high combustion efficiency.

Further, since the solid fuel is directly supplied from the lower portion of the combustion furnace while the combustion air is supplied to the vicinity of the upper end of the outer cylinder in the blower and changes toward the lower portion according to the inner circumferential surface of the outer cylinder after the swirling air flow, It takes a long time for the solid fuel to be supplied with the combustion air and to be able to burn, and besides, the influence of the suction force of the combustion gas generated due to the combustion of the solid fuel is eliminated, and most of the combustion region in the combustion furnace It is possible to inject the combustion air into the vicinity of the combustion gas outlet of the combustion furnace in a state where the combustion fuel can be immediately combusted by joining and mixing the solid fuel with the combustion air. Exhausted from the combustion gas outlet together with the rising flames of the combustion gases This action has caused concern.

KR 10-1552294 B1

CN 104350330 A

EP 02652397 A1

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above problems of the prior art.

Specifically, it is an object of the present invention to provide an apparatus for injecting solid fuel from an upper portion of a combustion furnace in a combustible state by mixing combustion air, and by supplying the supplied fuel to the entire combustion region securely, And burning it continuously for a long period of time to stably generate a high-temperature combustion gas.

In order to accomplish the above object, according to the present invention, there is provided a cyclone integrated type combustion apparatus having a conical combustion furnace for combusting solid fuel, comprising: an outer case having an outer shape of a hollow conical shape, , A combustion furnace (1) having a solid fuel combustion region in which a first inner case (3) and a second inner case (4) are arranged in the same line to constitute a furnace wall and to which compressed air is supplied; A cover plate (10) covering the top surface of the furnace (1); An enclosure bottom plate 11 coupled to the top of the lid plate 10; An outer casing (20) having cylindrical outer casings (21) and inner casings (22) of different diameters arranged on the same line and fixed to the upper surface of the outer casing bottom plate (11); A communication barrel 20 which is located inside the inner barrel 22 of the outer barrel 20 and which is fixed in a state of passing through the cover plate 10 and the outer bottom barrel plate 11 at the same height as the upper end of the barrel 20 24); An upper plate (29) coupled to an upper opening of the outer case (20) and having a gas outlet (29a) formed at a central portion thereof; And a fuel mixing hopper 40 connected to the combustion furnace 1 for supplying solid fuel F and a fuel mixing blowing pipe 42. The outer case 2 and the first inner case 3, an annular outer air circulation path 7 is formed between the first inner case 3 and the second inner case 4 and an inner air circulation path 8 is formed between the first inner case 3 and the second inner case 4. The outer air circulation path 7 And the inner air circulation path 8 are connected to each other through the lower communication hole 9. A second outer air circulation path 23 is formed in the clearance space between the outer cylinder 21 and the inner cylinder 22, A second inner air circulation path 27 is formed in the clearance space between the combustion cylinder 24 and the inner cylinder 22 and the lower ends of the air circulation path 27 are connected to each other through the upper communication hole 39, A first blower 31 for supplying compressed air (A) for combustion to the inside of the second outer air circulation passage 23 and the combustion chamber 24; And a fuel mixing blower pipe (42) for conveying and mixing the solid fuel (F) supplied from the fuel hopper (40) into the combustion furnace (1) And a second blower (41) for blowing air between the case (4) and the combustion cylinder (24).

As described above, the present invention can stably produce high-temperature combustion gas by efficiently burning the solid fuel over a long period of time while using a solid fuel such as wood chips, wood chips, pellets or RPF, It is possible to supply a high-temperature combustion gas (heat) required for various industrial uses without using a gaseous fuel such as a liquid fuel or a natural gas.

1 is a longitudinal sectional view showing a combustion apparatus for a solid fuel according to a first embodiment of the present invention;
2 is a cross-sectional view taken along the line XX of Fig. 1;
3 is a cross-sectional view taken along line YY of Fig. 1;
4 is a longitudinal sectional view showing a combustion apparatus for a solid fuel according to a second embodiment of the present invention;
5 is a cross-sectional view taken along the line ZZ in Fig. 4;
6 is a longitudinal sectional view showing a combustion apparatus for a solid fuel according to a third embodiment of the present invention;

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings, but the present invention is not limited by the scope of the present invention.

(First Embodiment)

Fig. 1 is a longitudinal sectional view showing a combustion apparatus for a solid fuel according to the first embodiment of the present invention. In this embodiment, a structure which can be effectively used for an industrial plant apparatus is exemplified.

The combustion apparatus according to the present invention is characterized in that the fuel stirring and collecting mechanism unit 13 is fixed to each upper end face of a plurality of support pillars 12, And the through holes 17a are formed by the bolts 18 in a state in which the flange portion 14 and the combustion furnace lower plate portion 17 protruded toward the side of the combustion chamber 14 are installed.

A bed portion 17b is formed around the through hole 17a of the combustion furnace lower plate portion 17 and a combustion furnace 1 which is a main body portion of the combustion apparatus is fixed to the upper portion of the bed portion 17b.

The combustion furnace 1 has an outer case 2, a first inner case 3 and a second inner case 4 having a conical outer shape narrower than the lower one, arranged in line with each other to form a furnace wall, The furnace wall is fixed on the bed portion 17b of the lower plate portion 17 by combustion and an outer air circulation path 7 is formed in an annular clearance space between the outer case 2 and the first inner case 3 And an inner air circulation path 8 is formed between the first inner case 3 and the second inner case 4. The lower end portions of the outer air circulation path 7 and the inner air circulation path 8 are connected to the lower And are connected to each other through a communication hole (9).

Next, a cover plate 10 is fixed to the upper surface of the combustion furnace 1, and a bottom cover plate 11 is bolted to the upper surface of the cover plate 10 by means of bolts 19, (20) is provided on the upper surface of the casing (11).

The outer casing 20 is formed by arranging cylindrical outer casings 21 and inner casings 22 of different diameters in the same line and fixed to the upper surface of the outer casing bottom plate 11, And the second outer air circulation passage 23 is formed in the clearance space between the first outer air passage 22 and the second outer air passage 23.

A communication pipe 24 is fixed in the inner pipe 22 in a state of passing through the cover plate 10 and the bottom bottom plate 11 at the same height as the upper end of the outer case 20, A second inner air circulation path (27) is formed in the clearance space between the combustion cylinder (24) and the inner cylinder (22).

Between the second outer air circulation passage 23 and the second inner air circulation passage 27, the lower end portions thereof are connected to each other through the upper communication hole 39.

A top plate 29 having a gas outlet 29a formed at the center thereof is fixed to the upper opening of the casing 20 and a gas outlet 29a for sucking the combustion gas is provided on the upper surface of the top plate 29 And a duct 30 connected to a heat exchanger (not shown) from a suction fan (not shown) is mounted.

1, the compressed air for combustion A discharged from the first blower 31 is supplied to the second outside air circulation passage 23 of the casing 20 through the straight blowing pipe 32 And also to the inside of the combustion cylinder 24 through the blowing pipe 33.

2, the straight line blowing pipe 32 passes through the upper end of the outer tube 21 of the outer case 20 and is inserted into the inner side of the upper end of the second outer air circulation path 23 And is fixed at a position to blow compressed air (A) in the direction of the arrow.

Therefore, the compressed air A ejected to the second outside air circulation path 23 is prevented from moving upward by the top plate 29 of Fig. 1 and changes along the second outside air circulation path 23, And the swirling air flow A1 descends along the second outer air circulation path 23 and then passes through the communication hole 39 to pass through the second inner air circulation path 27, And circulates through the second inner air circulation path (27) to the upper end.

On the other hand, the blowing pipe 33 passes through the upper end of each of the outer cylinder 21, the inner cylinder 22 and the combustion cylinder 24 of the outer cylinder 20, And is fixed at a position to blow the flow A1 in the inscribed direction of the combustion cylinder 24. [

Therefore, the swirling air flow A1 ejected to the combustion cylinder 24 is prevented from flowing upward by the upper plate 29 of Fig. 1 and flows into the inner wall of the combustion cylinder 24 at a high speed, When the combustion chamber 24 is lowered to the vicinity of the lower end opening of the combustion cylinder 24, the combustion gas is sucked by the downward high-temperature combustion gas G, And mixed with air (A3).

1, the air blown from the second blower 41 to the fuel mixing blower pipe 42 and the solid fuel F supplied to the fuel mixing blower pipe 42 from the fuel hopper 40 Is mixed into the lower combustion region of the combustion furnace (1) between the second inner case (4) and the combustion chamber (24) of the combustion furnace (1) A part of the compressed air A discharged from the compressor 31 is supplied from the straight blowing pipe 32 to the outside air circulation path 7 of the combustion furnace 1 through the branch blowing pipe 34.

3, the branch blowing pipe 34 passes through the upper end portion of the outer case 2 of the combustion furnace 1 and passes through the upper portion of the outer air circulation path 7 in the inscribed direction of the outer air circulation path 7, The compressed air A ejected to the outside air circulation path 7 is prevented from moving to the upper side of the shroud 10 in the cover plate 10 of Fig. 1 and is moved to the outside air circulation path 7 The swirling air flow A1 swirling at high speed is lowered along the outer air circulation path 7 and then flows into the inner air circulation path 8 through the communication hole 9 and flows along the inner air circulation path 8 And circulates fluidly to the top.

On the other hand, the fuel mixing blowing pipe 42 directly connected to the second blower 41 is connected to the upper end of each of the outer case 2, the first inner case 3 and the second inner case 4 of the combustion furnace 1 And the air in the insides of the second inner case 4 of the combustion furnace 1 at the height position of the penetration portion with respect to the cover plate 10 in the combustion chamber 24 and the solid fuel F). &Lt; / RTI >

The swirling air flow A1 that has risen to the vicinity of the upper end of the inner air circulation path 8 is joined to the mixture of the solid fuel F and the combustion air in the fuel mixing blowing pipe 42, And is ejected between the second inner case (4) and the combustion cylinder (24).

Next, the operation of the above-described combustion apparatus will be described.

The solid fuel F is first supplied from the fuel supply hopper 40 into the fuel mixing blast pipe 42 of the second blower 41 and mixed with the combustion air in the fuel mixing blast pipe 42, Is injected into the lower combustion region in the combustion furnace 1.

At this time, the solid fuel F is injected into a part spaced upward from the lower end opening of the combustion cylinder 24 between the combustion cylinder 24 and the second inner case 4 of the combustion furnace 1, The solid fuel F injection portion is installed upward with respect to the gas inlet of the combustion cylinder 24 into which the combustion gas generated in accordance with the combustion of the solid fuel F in the combustion region of the combustion furnace 1 flows.

Since the solid fuel F immediately after the injection is subjected to the suction force of the combustion gas flow, the lower portion penetrating the cover plate 10 in the combustion cylinder 24 is blocked, and therefore, the solid fuel F is burned It is possible to reliably prevent the gas from being discharged to the outside of the combustion cylinder 24 together with the inflow of gas.

The combustion furnace 1 constituted by the triple structure walls of the outer case 2, the first inner case 3 and the second inner case 4 is formed in a conical shape, The air A3 descending while swinging along the wall surface is relatively narrow inside the upper end portion of the combustion furnace 1 as compared with the lower end portion and the air pressure is increased and it swirls at a high speed while the lower end portion of the combustion furnace 1 is relatively inward So that the air pressure is low and turning at a slow speed.

The inside of the combustion furnace 1 is an air pressure arrangement in which the air pressure is higher, that is, the downward air pressure arrangement is higher than where the upward portion is downward.

Therefore, generation of defective products, which flow backward from the upper portion of the combustion furnace 1, and the generation of back smoke and back fire can be reliably prevented.

In addition, the electric combustion apparatus is configured such that the combustion air blown by the second blower 41 is introduced into the combustion furnace 1 in a state where the combustion air is mixed with the solid fuel F beforehand, Sufficient combustion air A3 is supplied to the combustion region while being lowered while being rotated around the inner wall surface of the combustion furnace 1.

The combustion air A3 is supplied from the first blower 31 to the outside air circulation path 7 and the inside air circulation path 8 of the combustion furnace 1 through the branch blowing pipe 34, The inner circumferential wall surface of the second inner case 4 of the combustion furnace 1 is heated to a high temperature by the heat of combustion of the high temperature combustion gas G in the combustion region, And is supplied to the combustion region.

As a result, the solid fuel (F) is burned at a high efficiency by the centrifugal combustion method, and efficiently generates a high-temperature combustion gas (G).

The compressed air A that has passed through the branch blowing pipe 34 from the first blower 31 is circulated through the outer air circulation path 7 and the inner air circulation path 8 of the combustion path 1, (A3) of high temperature at the time of completion of circulation of the inner air circulation path (8) which receives the radiant heat of the indoor heat exchanger (G) and is gradually preheated.

Therefore, the compressed air circulating through each of the air circulation passages 7 and 8 is effectively cooled by the air cooling method in which the outer case 2, the first inner case 3 and the second inner case 4 of the combustion furnace 1 are cooled by the air- So that the life of the combustion furnace 1 can be secured.

Similarly, in the case 20, the compressed air A having passed through the straight blowing pipe 32 from the first blower 31 passes through the second outer air circulation path 23 and the second inner air circulation path 27 in order Functioning as a cooling jacket that effectively cools the outer cylinder 21 and the inner cylinder 22 of the outer cylinder 20 by the air cooling method when circulating the engine, it is possible to secure the expected lifetime of the outer cylinder 20.

Next, the fuel agitation and reprocessing mechanism 13 for processing the ashes contained in the combustion gas G generated by the combustion of the solid fuel F will be described.

1, a rotary plate 43 having a plurality of small discharge holes 43a extending over the entire surface of the disk is provided at a downward position of the through hole 17a of the lower plate portion 17 by the combustion of the combustion furnace 1, And the rotating plate 43 constitutes the base plate portion of the combustion furnace 1 for depositing and burning the solid fuel F injected from the upper side on the upper surface.

The upper end of the rotary shaft 47 is connected to the center of the rotary plate 43 and the belt 51 is connected between the shaft 48 fixed to the lower end of the rotary plate 43 and the transmission gear 50 provided in the drive electric motor 49. [ And the rotating plate 43 is rotated by driving the driving electric motor 49. [

Next, the solid fuel F injected in the state where the air at the upper end of the combustion furnace 1 is mixed is rotated by the weight of the rotary plate 43 so that the solid fuel F falls almost on the same place of the rotary plate 43 but does not accumulate on the portion , And evenly distributed over the entire surface of the rotary plate 43, an even combustion state over the entire combustion region of the combustion furnace 1 is maintained.

The ash powder generated by the combustion of the solid fuel F passes through the ash discharge hole 43a due to the rotation of the rotary plate 43 and falls on the re-collecting mechanism 52, And is transferred to the re-collection box 57. The re-

Therefore, the ash powder is prevented from being deposited on the solid fuel F of the unburned fuel while being dropped on the rotary plate 43 which is the bottom portion of the combustion furnace 1, and the stable combustion state can be maintained.

On the other hand, the solid matter generated by the incomplete combustion of the heavy material or the inorganic substance generated when the solid fuel F is burned is deposited on the rotary plate 43, and the relatively large material stops the operation of the combustion device periodically The culture outlet 52 provided in the combustion furnace 1 is opened and removed.

(Second Embodiment)

4 is a longitudinal sectional view showing a combustion apparatus for a solid fuel according to a second embodiment of the present invention.

In the second embodiment, it is exemplified that a structure advantageous for extracting thermal energy from a discharged gas by using a heat exchanger or the like is illustrated. The same components as those of the first embodiment will be denoted by the same reference numerals, and description thereof will be omitted because they have the same structure as that of the fuel stirring and collecting apparatus 13 of FIG. 1 in the downward direction.

As shown in FIG. 4, the combustion apparatus according to the present invention differs from the first embodiment in that six cyclones 70 are provided above the combustion cylinder 24.

In FIG. 4, the dotted line enclosed by the rectangle above the six cyclones 70 shows the installation area of the heat exchanger 80 for convenience, because it uses waste heat.

4, a gas discharge port 29a for discharging exhaust gas generated in the combustion chamber 24 is formed in the upper end portion of the combustion chamber 24 at the center of the upper plate 29, An upper cylinder 72 is coupled.

The six cyclones 70 are annularly arranged around the upper cylinder 72 and the upper cylinder 72 is connected to the exhaust gas inlet pipe 70a of the six cyclones 70, respectively.

A conical discharge portion 70b is formed on the lower side of each cyclone 70. These discharge portions 70b are connected to the upper surface of the upper plate 29 and discharge clean gas from the upper portion of each cyclone 70 A discharge duct 70c is provided. In this combustion apparatus, the collection tube 74, which is a collection of the six discharge ducts 70c, is disposed directly above the upper cylinder 72, so that clean gas is discharged to the outside through the collection tube 74.

Therefore, even if dust is mixed into the combustion gas stream discharged from the combustion cylinder 24, it flows into the six cyclones 70, is centrifugally separated by clean gas and dust, and the dust component is not discharged to the outside, And the discharge portion 70b of the cyclone 70 is arranged in a circular ring shape smaller than the diameter of the combustion chamber 24 so that the separated dust falls down on the inner wall of the combustion chamber 24.

In other words, as shown in Fig. 1 in the first embodiment, the separated exhaust dust returns to the combustion furnace 1 while centrifugally moving in the swirling flow of the air stream A2, and therefore, the solid fuel F Reflux is repeated until it is completely burned.

Further, when the extremely fine material is removed, most of the material is collected in the fuel agitation and collecting mechanism 13 shown in Fig. 1 without being released to the outside.

Next, the clean gas collection pipe 74 is disposed directly above the upper cylinder 72 after being disposed above the combustion cylinder 24, so that radiant heat emitted from the upper cylinder 72 is conducted to the collection tube 74 It is possible to prevent the temperature of the clean gas from being lowered and the loss of thermal energy used for the heat exchange to be reduced and the combustion device and the heat exchanger 80 can be integrally and integrally designed.

Further, it is possible to prevent clogging of the internal piping of the heat exchanger 80 by sending clean gas containing no dust to the outside.

5 is a cross-sectional view taken along the line Z-Z in Fig. The ZZ line in FIG. 4 cuts the center of the exhaust gas introduction pipe 70a connecting the upper cylinder 72 and the cyclone 70. Here, for the sake of convenience, only the section of the cut position is shown, do.

5, the six cyclones 70 are arranged in an annular shape surrounding the upper cylinder 72, and the exhaust gas inlet pipe 70a is arranged in a substantially tangential direction of the inner wall of the upper cylinder 72 on a plane And also to the inner wall of the cyclone 70 in the tangential direction.

In the above-described first embodiment, as shown in Figs. 2 and 3, the combustion apparatus generates a swirling flow in the counterclockwise direction on the plane.

Therefore, even in the combustion apparatus of the second embodiment having the same configuration, the swirling flow of the combustion gas, which is generated in the combustion furnace 1 and flows to the upper cylinder 72, flows counterclockwise.

On the other hand, the exhaust gas introduction pipe 70a is also inclined in the counterclockwise direction so that air contributed to combustion by the first blower 31 and the second blower 41 is exhausted from the exhaust gas introduction pipe 70a to the cyclone 70 .

(Third Embodiment)

6 is a cross-sectional view showing a combustion apparatus for a solid fuel according to a third embodiment of the present invention. In this embodiment, the centrifugal separating function is further improved. The same components as those in the first and second embodiments described above are denoted by the same reference numerals, and description will be given of the configuration of the lower part than the fuel agitation and re- collecting mechanism section 13 shown in the second embodiment Are omitted for convenience of explanation.

In the first and second embodiments, a cylindrical communication barrel 24 having a predetermined diameter in the height direction is provided as an example. In this embodiment, as shown in Fig. 6, a communicating tube 24a having an inverted conical trapezoidal shape is formed so that the diameter is reduced from the lower side.

The outer cylinder 20a composed of the outer cylinder 21a and the inner cylinder 22a, which compares with the outer side of the combustion cylinder 24a, also has an opposite conical trapezoidal portion.

A wall 29b is formed in the gas discharge port 29a formed in the upper plate 29 to open the combustion chamber 24a so as to flow toward the inside of the combustion chamber 24a.

Therefore, in the combustion apparatus according to the present embodiment, the dust coming from the discharge portion 70b of the cyclone 70 flows from the first blower 31 through the straight blowing pipe 32 and the bent blowing pipe 33 A1, and descends while being increased in centrifugal force, and is sent to the combustion furnace 1.

However, as shown in Fig. 6, the combustion cylinder 24a is formed in a cylindrical shape having a constant diameter in the region below the outer casing bottom plate portion 11.

Therefore, the air flow A2 flows to the center of the combustion furnace 1 while maintaining a constant centrifugal force so as not to disturb the upward swirling flow in the center of the combustion furnace 1 in the lower region than the outer casing bottom plate portion 11.

The centrifugal force of the combustion tube 24a is improved and the centrifugal force of the dust (ash) in the collector tube 74 is increased. The concentration can be further lowered.

As described above, the gas discharge port 29a is provided with a wall 29b so that the exhaust dust dropped from the discharge portion 70b of the cyclone 70 is directly returned to the upper cylinder (compartment) 72 And it is possible to perform high-efficiency combustion without emitting dust.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments.

Claims

The outer case 2, the first inner case 3, and the second inner case 4, which have a hollow cone-shaped outer shape and a narrower upper portion than the lower portion, are arranged on the same line to form a furnace wall, A combustion furnace (1) having a solid fuel combustion region to which compressed air is supplied;
A cover plate (10) covering the top surface of the furnace (1);
An enclosure bottom plate 11 coupled to the top of the lid plate 10;
An outer casing (20) having cylindrical outer casings (21) and inner casings (22) of different diameters arranged on the same line and fixed to the upper surface of the outer casing bottom plate (11);
A communication barrel 20 which is located inside the inner barrel 22 of the outer barrel 20 and which is fixed in a state of passing through the cover plate 10 and the outer bottom barrel plate 11 at the same height as the upper end of the barrel 20 24);
An upper plate (29) coupled to an upper opening of the outer case (20) and having a gas outlet (29a) formed at a central portion thereof;
And a fuel mixing hopper 40 and a fuel mixing blowing pipe 42 connected to the combustion furnace 1 to supply the solid fuel F,
An annular outer air circulation path 7 is formed between the outer case 2 and the first inner case 3 and an inner air circulation path 8 is formed between the first inner case 3 and the second inner case 4 And the lower end portions of the outer air circulation path 7 and the inner air circulation path 8 are connected to each other through the lower communication hole 9,
A second outer air circulation path 23 is provided in a clearance space between the outer cylinder 21 and the inner cylinder 22 and a second inner air circulation path 27 is provided in a clearance space between the combustion cylinder 24 and the inner cylinder 22. [ And the lower ends thereof are connected to each other through the upper communication hole 39,
A first blower 31 for supplying compressed air (A) for combustion to the second outside air circulation passage (23) and the combustion chamber (24) of the outer casing (20); And
A fuel mixture blowing pipe 42 for conveying and mixing the solid fuel F supplied to the combustion furnace 1 from the fuel hopper 40 with air blown from the fuel hopper 40, And a second blower (41) for blowing air between the combustion chamber (4) and the combustion chamber (24). The cyclone burner according to claim 1,

The method according to claim 1,
The lower part of the combustion furnace 1 is provided with,
A rotary plate 43 having a plurality of discharge holes 43a formed in the front surface of the disk;
A rotating shaft 47 to which the upper end is coupled to the center of the rotating plate 43;
A shaft 48 fixed to a lower end of the rotary shaft 47;
And a driving motor (49) connected to the shaft (48) to provide a rotational power, and the rotating plate (43) is rotated by driving the driving motor (49) And a conical combustion furnace for combusting solid fuel.

3. The method of claim 2,
A re-collecting mechanism (52) located below the rotating plate (43) and accommodating the ash that has passed through the ash discharge hole (43a) by the vibration caused by the rotation of the rotating plate (43);
A conveying conveyor (54) for transferring collected material falling onto the re-collecting mechanism (52);
A motor 53 for driving the conveyance conveyor 54;
And a re-collecting box (57) connected to the conveying conveyor (54) to finally receive the ash. The cyclone-integrated combustion device according to any one of claims 1 to 5,

The method according to claim 1,
A hollow upper cylinder 72 which is hollowed and connected to an upper portion of the gas discharge port 29a formed at the center of the upper plate 29 of the combustion cylinder 24;
Further comprising six cyclones 70 annularly arranged around the upper cylinder 72 and connected to the upper cylinder 72 by an exhaust gas inlet pipe 70a,
A conical discharge portion 70b is formed on the lower side of each of the cyclones 70. These discharge portions 70b are connected to the upper surface of the upper plate 29. At the upper portion of each cyclone 70, And a conical combustion furnace for combusting the solid fuel, characterized in that a discharge duct (70c) for discharging the clean gas is formed and the clean gas is discharged to the outside.

The method according to claim 1,
Characterized in that the casing (20) constituted by the combustion cylinder (24), the outer cylinder (21) and the inner cylinder (22) is formed in an inverted conical trapezoidal shape, and the conical combustion furnace Integrated combustion device.