WO2011037352A2

WO2011037352A2 - Briquette boiler using coal

Info

Publication number: WO2011037352A2
Application number: PCT/KR2010/006304
Authority: WO
Inventors: 김성수; 박선미; 김봉섭; 최승진; 윤성문; 김현섭; 김미진; 백승한
Original assignee: Kim Sung-Soo; Park Sun-Mi; Kim Bong-Sub; Choi Seung-Jin; Yun Sung-Moon; Kim Hyun-Sub; Kim Mi-Jin; Baek Seung-Han
Priority date: 2009-09-25
Filing date: 2010-09-16
Publication date: 2011-03-31
Also published as: WO2011037352A3; KR100951576B1; CN102510974A

Abstract

The present invention relates to a briquette boiler using coal. In particular, a boiler, using a briquette that is made of coal as a main component and has a plurality of drilling combustion holes for downward combustion, comprises: an ash tray having an outdoor air inlet to intake the outdoor air; a chamber having at least one outdoor air supply opening drilled at the bottom plate so that the outdoor air having been introduced via the outdoor air inlet is supplied only through the combustion holes of the briquette, and a briquette insertion opening; a cover for opening and closing the briquette insertion opening of the chamber; a combustion tube installed perpendicularly to the top of the bottom plate of the chamber in such a manner as to form a combustion gap between multi-stacked briquettes above the outdoor air supply opening; a partition plate which is configured to form a smoke duct between the combustion tube and the internal chamber and serves to partition a residence chamber where a 1st high-pressure combustion heat that has ascended to the upper part of the chamber after the combustion in the combustion tube remains; a ventilation opening drilled at one side of the partition plate to ventilate the 1st high-pressure combustion heat remaining in the residence chamber to the smoke duct of low pressure; at least one discharge opening drilled at the combustion tube to introduce the 1st high-pressure combustion heat that has been kept in the residence chamber to the combustion gap of low pressure and then discharge to the smoke duct; a water tube built in the chamber to be heated by the combustion heat that is generated in the combustion tube; and a smokestack connected to the bottom of the chamber to exhaust a 2nd heat flowing at the bottom of the smoke duct to the air.

Description

Briquette Boiler for Bituminous Coal

The present invention relates to a briquette boiler for bituminous coal,

More specifically, by adjusting the combustion time of the bituminous coal to improve energy efficiency,

The present invention relates to a coal briquette boiler for bituminous coal, which is capable of preventing environmental pollution by burning the combustion heat generated during combustion of bituminous coal close to complete combustion.

As is well known, briquette boilers produce steam by boiling water using briquettes as fuel, where briquettes such as anthracite coal, coke and charcoal powder are mixed with a pitch, seaweed and lime binder. It is hardened.

Bituminous coal, on the other hand, is a kind of coal corresponding to anthracite coal, and belongs to peat, peat, lignite, bituminous coal, etc., containing a large amount of volatiles, burning with flame, and having a high calorific value, which is used for power generation.

Briquettes made from such bituminous coal are not used as fuels for domestic boilers as they emit harmful gases such as carbon dioxide, carbon monoxide and sulfur dioxide during combustion.

In addition, since bituminous coal contains a large amount of volatile matter as described above, when it is made of briquettes and used as a fuel for a boiler, it is burned at the same time as it is ignited, and thus, it is not possible to maintain a constant heat of combustion generated during combustion. There was a problem that can not be implemented.

In addition, the conventional boiler, the briquette made of bituminous coal is laminated in multiple stages in the combustion chamber and emits heat while burning from the bottom to the upper direction,

Since the smoke contained in the heat is made to discharge to the atmosphere through the communication provided in the upper portion of the boiler, incomplete combustion is made until the temperature of the combustion chamber is raised to a certain temperature,

The smoke generated during incomplete combustion contains harmful gases that are deadly to the human body, causing problems such as death and air pollution due to poisoning.

The present invention has been made to solve the above conventional problems,

SUMMARY OF THE INVENTION An object of the present invention is to provide a briquette boiler for bituminous coal, which maintains a constant combustion time of briquettes manufactured using bituminous coal as a main raw material, and prevents casualties and air pollution in advance. .

In order to achieve the above object, the present invention, in the boiler made of coal briquettes as a main raw material to be burned downward and a plurality of combustion holes as a raw material,

A backrest provided with an outside air inlet to suck outside air;

A chamber having at least one outside air supply hole and a briquette inserting hole formed in the bottom plate such that the outside air sucked from the outside air inlet is supplied only to a combustion hole of briquettes;

A cover for opening and closing the briquette insertion opening of the chamber; A combustion tube which is formed to form a combustion gap between the briquettes stacked in multiple stages on the top of the outside air supply hole, and is installed vertically on the bottom plate of the chamber; While partitioning the retention chamber for retaining the high-pressure first combustion heat, which is combusted in the combustion tube and raised to the top of the chamber,

A partition plate installed to form a flue between the combustion tube and the interior of the chamber;

A ventilating hole drilled on one side of the partition plate to vent the high pressure first combustion heat stayed in the staying chamber to a low pressure flue;

At least one discharge hole perforated in the combustion tube so that the first combustion heat of high pressure stayed in the stay chamber flows into the combustion gap of low pressure and is discharged to the flue;

A water pipe embedded in the chamber to be heated by the combustion heat generated in the combustion pipe; And a communication connected to the lower part of the chamber to exhaust the second combustion heat flowing through the lower part of the flue to the atmosphere.

At this time, the communication is preferably connected to the lower side opposite the chamber in which the discharge hole and the exhaust hole is formed.

The discharge hole is preferably formed at equal intervals in the combustion tube so as to match the number of briquettes stacked in multiple stages, and the discharge hole is preferably made of a diameter of 1 ~ 15mm.

On the other hand, the combustion tube may be provided with a spacer to maintain the combustion gap, the wind direction guides are provided on both sides of the outer surface of the combustion tube, to guide the heat of combustion from the top of the flue to the bottom.

According to the present invention implemented by the above means,

After the first combustion heat combusted in the combustion pipe is raised to the residence chamber, part of the combustion gas is moved to the flue through the vent hole and the remainder is moved to the flue through the combustion gap and the discharge hole, thereby burning the briquette once more.

The first combustion heat introduced into the flue is guided from the top to the bottom by the wind direction guide and is in the form of the second combustion heat, and as a result, it is possible to reduce the generation of noxious gas by completely burning the exhaust gas to the atmosphere through the opposite communication. There is a very useful effect to prevent human life and environmental pollution.

Particularly, in the present invention, as the first combustion heat in the holding chamber is moved to the flue through the combustion gap and the discharge hole, the briquettes stacked in multiple stages in the combustion tube are sequentially burned from the top to the bottom, so that the combustion time of the briquettes is constant. It is effective to improve the heat exchange capacity.

In addition, the present invention also has the effect that the thermal expansion coefficient in the combustion tube can be kept constant and evenly because the briquettes laminated in the combustion tube properly maintain the combustion gap by the spacer.

1 is an exploded perspective view according to an embodiment of the present invention.

Figure 2 is a front sectional view according to an embodiment of the present invention.

3 is a cross-sectional view taken along the line A-A of FIG.

4 is a cross-sectional view taken along the line B-B of FIG. 2.

5 is a cross-sectional view taken along the line C-C of FIG.

6 is an exemplary view showing a movement path of combustion heat according to an embodiment of the present invention.

♠ Explanation of symbols on the main parts of the drawing ♠

10 briquettes

20: ash stand

21: outside air intake

30: chamber

32: outside air supply hole

40: cover

50: combustion tube

51: discharge hole

53: Wind direction guide

54: spacer

60: staying room

70: year

80: partition plate

81: air blower

90: water pipe

100: communication

C: combustion chamber

G: combustion gap

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

The present invention, in the boiler made of coal briquettes as a main raw material to be burned downward and a plurality of combustion holes 11 perforated briquette 10 as a raw material,

A backrest 20 provided with an outside air suction port 21 to suck outside air;

At least one outside air supply hole 32 and briquette insertion holes 33 are formed in the bottom plate 31 so that the outside air sucked from the outside air inlet 21 is supplied only to the combustion hole 11 of the briquette 10. Chamber 30;

A cover 40 for opening and closing the briquette insert 33 of the chamber 30;

Combustion tube 50 which is formed to form a combustion gap G between the briquettes 10 stacked in multiple stages on the top of the outside air supply hole 32 and installed vertically on the bottom plate 31 of the chamber 30. ); While partitioning the residence chamber 60, which burns in the combustion tube 50 and retains the high-pressure first combustion heat elevated to the upper portion of the chamber 30,

A partition plate 80 installed to form a flue 70 between the combustion tube 50 and the chamber 30; A vent hole 81 which is drilled on one side of the partition plate 80 and blows the high-pressure first combustion heat stayed in the staying chamber 60 to the low-pressure flue 70;

At least one discharge hole 51 drilled in the combustion pipe 50 so that the first combustion heat of high pressure stayed in the staying chamber 60 flows into the combustion gap G of low pressure and is discharged into the flue 70; A water pipe (90) embedded in the chamber (30) to be heated by the heat of combustion generated in the combustion pipe (50); It is a technical idea to include; communication 100 connected to the lower portion of the chamber 30 to exhaust the second combustion heat flowing through the lower portion of the flue 70 to the atmosphere.

First, the briquette 10 used in the present invention is used to harden by mixing a binder such as lime with a coal as a main raw material, an ignition layer or / and an ignition layer is formed on the top of the top-down briquettes from the top downward It burns along. In addition, a plurality of combustion holes 11 are vertically drilled in the briquette 10 and combustion is performed by external air supplied from the outside air supply holes 32.

The ash support 20 is formed in a flat cylindrical shape with an open top to support ash falling after combustion. In addition, an outside air suction port 21 is formed at one side of the backrest 20 to suck outside air, and the outside air suction port 21 is provided with a valve 22 as shown in FIG. 5 to adjust the suction amount of outside air. In addition, the ash tray 20 may be provided with a tray (not shown) for supporting the ash falling after burning to be withdrawable.

The chamber 30 is formed as a cylinder as shown in FIG. 1 to form a framework of the present invention. An upper portion of the chamber 30 is provided with a briquette insert 33 to insert briquettes 10 and a lower portion. At least one or more, preferably two or more outside air supply holes 32 are drilled in the bottom plate 31.

Here, the outside air supply hole 32 is formed smaller than the outer diameter of the briquette 10 as shown in Figure 2 and 3 to supply the outside air only to the combustion hole 11 of the briquette 10.

And the column tower insert 33 of the chamber 30 is hermetically sealed or opened by the cover 40, the upper portion of the cover 40 is provided with a handle 41 to facilitate opening and closing.

In addition, the heat insulating material 34 is attached to the inner circumferential surface of the chamber 30 to block heat lost to the outside.

Combustion tube 50 is made of stainless steel (stainless steel) excellent in thermal conductivity, and formed in a cylindrical shape so as to pass through up and down, the bottom plate 31 of the chamber 30,

That is, it is installed vertically on a concentric circle having the same center as the outside air supply hole 32 to form a combustion chamber C for burning the briquette 10. The inner diameter of the combustion tube 50 is larger than the outer diameter of the briquette 10. The combustion gap G is formed between the briquettes 10 stacked in the combustion chamber C in multiple stages.

3 is a cross-sectional view taken along the line A-A of FIG.

FIG. 4 is a cross-sectional view of a cut portion showing only a cut line BB of FIG. 2, and the plurality of combustion tubes 50 as shown in FIGS. 3 and 4 have communication holes 52 connected to each other. Is preferred,

As a result, the plurality of combustion tubes 50 maintains the same to similar thermal expansion coefficients to achieve uniform combustion of the briquettes 10.

In addition, wind direction guides 53 are provided at both upper sides of the combustion pipe 50 to guide the flow of the first combustion heat vented from the staying chamber C to the flue 70.

That is, the first combustion heat ventilated in the staying chamber C is guided to flow along the flue 70 without being discharged as it is through the communication 100.

In particular, in the combustion tube 50, as shown in FIG. 2, the discharge holes 51 are formed at appropriate intervals up and down, so that the high-temperature first combustion heat stayed in the staying chamber 60 is relatively low. It serves as a passage along with the combustion gap (G) to be discharged to.

That is, since the first combustion heat in the staying chamber 60 burns the briquette 10 once more as it passes through the combustion gap G, the phenomenon in which carbon monoxide is generated by the moisture contained in the briquette 10 during combustion is minimized. Done.

As described above, the first combustion heat in the holding chamber 60 is discharged to the flue 70 while passing through the combustion gap G, and completely burns the top briquettes 10 stacked in multiple stages, and then thereafter. The briquettes 10 are sequentially burned.

And the discharge hole 51 is preferably formed at equal intervals so as to match the number of briquettes 10 stacked in multiple stages in the combustion chamber (C), as shown in Figure 2, the diameter of the discharge hole 51 is 1 It is preferable that it consists of -15 mm.

In addition, a plurality of spacers 54 are provided on the inner circumferential surface of the combustion tube 50 to appropriately maintain the combustion gap G.

The partition plate 80 is formed in a disk shape so as to have a diameter corresponding to the inner diameter of the chamber 30, and at least one coupling hole 82 is drilled in the center thereof so as to be coupled to the outer diameter of the upper end of the combustion tube 50 (FIG. 2),

It is installed horizontally in the chamber 30, the partition plate 80 is partitioned in the upper part of the chamber 30 in the chamber 30, the outer surface of the combustion tube 50 and the inner surface of the chamber 30 Between the flue 70 is formed. In addition, a vent hole 81 is drilled in the partition plate 80 so as to be connected to the flue 70.

Since the retention chamber 60 is connected to the combustion chamber C in series, the retention chamber 60 retains the first combustion heat that is elevated while burning in the combustion tube 50, and the retention chamber 60 achieves a high pressure.

The flue 70 is formed along the outer circumference of the combustion tube 50 as shown in FIGS. 3 and 4 to form a lower pressure than the staying chamber 60, and thus the high pressure stayed in the staying chamber 60. The first combustion heat passes through the vent hole 81 and moves to the flue 70 forming a relatively low pressure.

Therefore, the first combustion heat combusted in the combustion pipe 50 is elevated to the residence chamber 60 to form a high pressure while the first combustion heat of the high pressure is a flue forming a relatively low pressure through the vent hole 81 ( 70).

The communication 100 is to exhaust the second combustion heat introduced into the flue 70 and burned close to the complete combustion to the atmosphere, and the communication 100 includes the discharge hole 51 and the one shown in FIGS. 3 and 4. It is connected to the lower side opposite the chamber 30, the vent hole 81 is formed, and exhausts the second combustion heat that heated the water pipe 90 while flowing through the lower portion of the flue (70).

The water pipe 90 is heated by the heat of combustion generated in the combustion pipe 50 and used as heating water or hot water. The water pipe 90 is made of a corrugated pipe made of stainless steel having excellent thermal conductivity.

As shown in FIG. 2, it is provided inside the chamber 30 to spirally wound along the inner surface of the staying chamber 60, and used as heating water or / and hot water while being heat-exchanged by the first combustion heat in the staying chamber 60. The first water pipe (91)

It is composed of a second water pipe 92 provided inside the chamber 30 to spirally wound along the inner surface of the flue 70 and used as heating water and / or hot water while being heat-exchanged by the second combustion heat in the flue 70. do.

Looking in detail with reference to the accompanying drawings the movement path of the entire column of the present invention configured as described above are as follows.

First, the top-down briquettes 10 are stacked in the combustion chamber C. In this case, it is important to secure a combustion gap G between the inner surface of the combustion tube 50 and the briquettes 10. Then, after igniting the coal briquettes 10 stacked on top, the state of ignition is confirmed, and the briquette insert 33 of the chamber 30 is closed by the cover 40.

Subsequently, by adjusting the valve 22 to adjust the intake of the outside air through the outside air inlet 21, outside air is sucked into the backrest 20 through the outside air inlet 21, and sucked into the backrest 20. The outside air is supplied to the combustion hole 11 of the briquette 10 through the outside air supply hole 32 to burn the briquette 10 on the top of the complex.

In the coal briquette 10 thus burned, a first combustion heat is generated and raised to the holding chamber 60, and then heat-exchanges the first water pipe 91. A portion of the first combustion heat is relatively low in pressure through the exhaust hole 81. It is exhausted to the flue 70 to be formed, the rest is discharged to the flue 70 through the combustion gap (G) and the discharge hole (51).

Looking at the movement path of the combustion heat is blown to the flue 70 through the vent hole 81, as shown by the double-dotted arrow of Figure 6 guided by the wind direction guide 53 is moved along the flue 70, then As shown by the dotted arrows in FIG. 6, the second water pipe 92 is sufficiently heat-exchanged and exhausted to the atmosphere through the communication 100 in the form of the second combustion heat.

And looking at the movement path of the heat of combustion discharged to the year through the combustion gap (G) and the discharge hole (51),

As shown by the dashed-dotted arrow in FIG. 6, the first combustion heat in the staying chamber 60 is discharged to the flue 70 through the combustion gap G and the discharge hole 51.

After the coal briquette 10 in the combustion tube 50 is burned once more, it is guided by the wind direction guide 53 while being mixed with the combustion heat blown through the vent holes 81, and then as shown in the dotted arrows in FIG. While heat-exchanging the two water pipes 92, the communication 100 is directed in the form of the second combustion heat.

Repeated processes as described above, the stacked briquettes 10 are sequentially burned from the top to the bottom direction.

Therefore, in the present invention, after the first combustion heat combusted in the combustion tube stays in the staying chamber, a part of the first combustion heat is moved to the year through the vent hole and the rest is moved to the year through the combustion gap and the discharge hole

The first combustion heat introduced into the flue is guided from the top to the bottom by the wind direction guide in the form of the second combustion heat, and then achieves the complete combustion of exhausting to the atmosphere through the communication on the opposite side. Will be prevented.

Particularly, in the present invention, as the first combustion heat in the holding chamber is moved to the flue through the combustion gap and the discharge hole, the briquettes stacked in multiple stages in the combustion tube are sequentially burned from the top to the bottom, so that the combustion time of the briquettes is constant. To maintain the heat exchange capacity.

The present invention is not limited only to the above-described embodiments, and various modifications, changes, substitutions, and additions can be made in various forms without departing from the spirit of the present invention. I can understand. If such improvement, change, replacement, or addition is carried out within the scope of the following claims, it is obvious that the technical idea also belongs to the present invention.

Claims

In a boiler made of coal briquettes as a main raw material to be burned downward, and a plurality of combustion holes are made of briquettes perforated,

A backrest provided with an outside air inlet to suck outside air;

A chamber having at least one outside air supply hole and a briquette inserting hole formed in the bottom plate such that the outside air sucked from the outside air inlet is supplied only to a combustion hole of briquettes;

A cover for opening and closing the briquette insertion opening of the chamber;

A combustion tube which is formed to form a combustion gap between the briquettes stacked in multiple stages on the top of the outside air supply hole, and is installed vertically on the bottom plate of the chamber;

While partitioning the retention chamber for retaining the high-pressure first combustion heat, which is combusted in the combustion tube and raised to the top of the chamber,

A partition plate installed to form a flue between the combustion tube and the interior of the chamber;

A ventilating hole drilled on one side of the partition plate to vent the high pressure first combustion heat stayed in the staying chamber to a low pressure flue;

At least one discharge hole perforated in the combustion tube so that the first combustion heat of high pressure stayed in the stay chamber flows into the combustion gap of low pressure and is discharged to the flue;

A water pipe embedded in the chamber to be heated by the combustion heat generated in the combustion pipe; And a communication unit connected to a lower portion of the chamber to exhaust the second combustion heat flowing through the lower portion of the flue to the atmosphere.
The method according to claim 1,

The communication is briquette boiler for coal briquettes, characterized in that connected to the lower side opposite the chamber of the discharge hole and the vent hole formed.
The method according to claim 1,

The discharge hole is briquette boiler for coal briquettes, characterized in that formed in the combustion pipe at equal intervals to match the number of briquettes stacked in multiple stages.
The method according to claim 1,

The discharge hole is briquette boiler for bituminous coal, characterized in that made of a diameter of 1 ~ 15mm.
The method according to claim 1,

Briquette boiler for bituminous coal, characterized in that the combustion tube is provided with a spacer to maintain a combustion gap.
The method according to claim 1,

A wind direction guide is provided at both upper sides of the outer surface of the combustion pipe, and the briquette boiler for bituminous coal, characterized in that to guide the combustion heat from the top of the flue to the bottom.