KR101843492B1 - Trash boiler system capable of reducing clinker - Google Patents

Trash boiler system capable of reducing clinker Download PDF

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Publication number
KR101843492B1
KR101843492B1 KR1020160029329A KR20160029329A KR101843492B1 KR 101843492 B1 KR101843492 B1 KR 101843492B1 KR 1020160029329 A KR1020160029329 A KR 1020160029329A KR 20160029329 A KR20160029329 A KR 20160029329A KR 101843492 B1 KR101843492 B1 KR 101843492B1
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South Korea
Prior art keywords
combustion chamber
tube
water
diaphragm
clinker
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KR1020160029329A
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Korean (ko)
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KR20170105930A (en
Inventor
황승자
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동아기계공업주식회사
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22G—SUPERHEATING OF STEAM
    • F22G1/00—Steam superheating characterised by heating method
    • F22G1/02—Steam superheating characterised by heating method with heat supply by hot flue gases from the furnace of the steam boiler
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/38—Multi-hearth arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/50—Control or safety arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J3/00—Removing solid residues from passages or chambers beyond the fire, e.g. from flues by soot blowers
    • F23J3/02—Cleaning furnace tubes; Cleaning flues or chimneys
    • F23J3/023—Cleaning furnace tubes; Cleaning flues or chimneys cleaning the fireside of watertubes in boilers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J9/00—Preventing premature solidification of molten combustion residues

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gasification And Melting Of Waste (AREA)

Abstract

In the clinker-reduced incinerator boiler system according to the present invention,
A first combustion chamber composed of water tubes, partition plates disposed between the water tubes and welded to the water tubes;
A second combustion chamber communicating with the first combustion chamber;
A third combustion chamber communicating with the second combustion chamber;
A boiler communicating with the third combustion chamber and comprising a body, an upper drum, a lower drum, and a superheater; And
And clinker reduction devices installed on the diaphragm.

Figure 112016023552367-pat00001

Description

{TRASH BOILER SYSTEM CAPABLE OF REDUCING CLINKER}

The present invention relates to a clinker-reduced incinerator boiler system.

The incinerator boiler system is a system that uses the heat generated by incineration of waste for heating or power generation.

The incinerator boiler system consists of a combustion chamber and a boiler.

The combustion chamber is composed of a first combustion chamber, a second combustion chamber, and a third combustion chamber.

The first combustion chamber is made of refractory bricks. The second combustion chamber, and the third combustion chamber are made by welding the water pipes through which water flows. The body of the boiler is made by welding water pipes to each other.

The combustion gas generated as the waste is incinerated in the first combustion chamber passes through the second combustion chamber, the third combustion chamber, and the boiler and is discharged to the atmosphere.

While the combustion gas passes through the interior of the second combustion chamber, the third combustion chamber, and the boiler, the heat contained in the combustion gas is transferred to the water flowing through the water pipe. The heat is supplied to the heating or power generation facilities.

The inside of the first combustion chamber is a high temperature of 900 to 1500 ° C. Due to such a high temperature, the waste is hot-welded to the inner wall of the first combustion chamber. The high-temperature welded waste hardens and sticks to the inner wall of the combustion chamber. The waste adhering to the inner wall of the combustion chamber hardly is called a " clinker ".

When the clinker sticks to the inner wall of the first combustion chamber, the incineration capacity is reduced. Therefore, the clinker should be removed periodically (1 to 1.5 months). In order to remove the clinker, the incineration boiler system is shut down and the operator enters the first combustion chamber and breaks the clinker that has clung to the inner wall of the first combustion chamber with a hammer.

In such a short cycle (1 to 1.5 months), the clinker sticking to the inner wall of the first combustion chamber was removed, so that the operation of the incineration boiler system had to be stopped frequently.

In order to solve such a problem, in the patent document (10-1470569), the first combustion chamber is constructed by welding water pipes not refractory bricks to each other so that water flowing in the water pipe cools the inner wall of the first combustion chamber, So that it can not be welded to the inner wall of the housing at a high temperature. As a result, the clinker can be prevented from sticking to the inner wall of the first combustion chamber to some extent.

However, in the registered patent, too, the dust is caught between the narrow gaps between the water pipes welded to each other, and these dusts accumulate and cover the water pipe.

As a result, the cooling efficiency of the water tube is lowered, and the phenomenon that the waste is hot-melt-bonded to the inner wall of the first combustion chamber eventually occurs again. Therefore, it is difficult to increase the period of removing the clinker sticking to the inner wall of the first combustion chamber.

Korea registered patent (10-1470569)

SUMMARY OF THE INVENTION It is an object of the present invention to provide a clinker reduction type incineration boiler system capable of increasing the period of removing the clinker sticking to the inner wall of the first combustion chamber.

To achieve the above object, a clinker reduction type incineration boiler system comprises:

A first combustion chamber composed of water tubes, partition plates disposed between the water tubes and welded to the water tubes;

A second combustion chamber communicating with the first combustion chamber;

A third combustion chamber communicating with the second combustion chamber;

A boiler communicating with the third combustion chamber and comprising a body, an upper drum, a lower drum, and a superheater; And

And clinker reduction devices installed on the diaphragm.

The present invention places a diaphragm between the water pipes of the first combustion chamber, thereby eliminating the gap between the water pipes. As a result, the dust can not be trapped in the gap and the dust can not cover the water pipe. Therefore, the cooling efficiency of the water tube is maintained, and the clinker does not stick well to the inner wall of the first combustion chamber.

In the present invention, the clinker reduction devices installed in the diaphragm of the first combustion chamber discharge air. The discharged air blocks the dust from adhering to the water pipe of the first combustion chamber. Because of this, dust can not accumulate in the water tube, and the dust can not cover the water tube. Therefore, the cooling efficiency of the water tube is maintained, and the clinker does not stick well to the inner wall of the first combustion chamber. In addition, the clinker reduction device supplies a sufficient amount of air to the first combustion chamber to completely combust the waste, so that the amount of waste generated by the clinker itself can be reduced. As a result, the clinker sticking to the inner wall of the first combustion chamber is reduced.

Further, the clinker reduction device is provided with injection ports on the top surface as well as on the side surface. Therefore, not only the forward direction but also the lateral direction dust can be prevented from sticking to the water pipe. Because of this, dust can not accumulate in the water tube, and the dust can not cover the water tube. Therefore, the cooling efficiency of the water tube is maintained, and the clinker does not stick well to the inner wall of the first combustion chamber.

In addition, the clinker reduction device is provided with injection ports inclined downwardly toward the diaphragm on the top surface as well as on the side surface. Therefore, not only the forward direction but also the lateral direction dust can be prevented from adhering to the water pipe, and the discharged air can beat the diaphragm and remove dust attached to the diaphragm. Because of this, dust can not accumulate in the water tube, and the dust can not cover the water tube. Therefore, the cooling efficiency of the water tube is maintained, and the clinker does not stick well to the inner wall of the first combustion chamber.

Therefore, by using the present invention, it is possible to reduce the clinging of the clinker to the inner wall of the first combustion chamber, and to increase the period for removing the clinker sticking to the inner wall of the first combustion chamber from 1 to 1.5 months to 4 to 5 months . As a result, the time for operating the incineration boiler system can be increased.

1 is a view illustrating a clinker reduction type incineration boiler system according to an embodiment of the present invention.
2 is an enlarged view of a portion A shown in Fig.
3 is a side cross-sectional view of the clinker reduction apparatus shown in Fig.
4 is a side cross-sectional view of the clinker reduction device according to the first modification.
5 is a side sectional view of the clinker reduction device according to the second modification.

Hereinafter, a clinkering-reduced incineration boiler system according to an embodiment of the present invention will be described.

As shown in FIG. 1, a clinker-reduced incineration boiler system 10 according to an embodiment of the present invention includes a combustion chamber 100, a boiler 200, and a clinker reduction apparatus 300. The arrows shown in Fig. 1 represent the flow of combustion gas.

The combustion chamber 100 and the boiler 200 communicate with each other.

The combustion chamber 100 includes a first combustion chamber 110, a second combustion chamber 120, and a third combustion chamber 130. The first combustion chamber 110, the second combustion chamber 120, and the third combustion chamber 130 communicate with each other.

The first combustion chamber 110 is composed of water tubes 111 and diaphragms 112. Water flows into the water tube 111. The water tube 111 lowers the temperature of the inner wall of the first combustion chamber 110.

The diaphragm 112 is disposed between the water tubes 111 and welded to the water tubes 111. Since the diaphragm 112 is disposed between the water tubes 111, there is no gap between the water tubes 111 in which dust can be caught.

The waste is introduced into the first combustion chamber 110 through the inlet 11. The introduced waste is placed on the grate 19 installed at the bottom of the first combustion chamber 110. The grate (19) consists of plates arranged in the form of stairs. The waste placed on the grate 19 is pushed to the right by the RAM PUSHER 12.

Below the right end of the grate 19, a refill can 13 is installed.

A first burner 15 is installed in the first combustion chamber 110. The first burner 15 primarily combusts the waste introduced into the first combustion chamber 110. The ash remaining in the waste falls off to the refueling station (13).

The combustion gas generated when the waste is incinerated in the first combustion chamber 110 passes through the second combustion chamber 120, the third combustion chamber 130, and the boiler 200 and is discharged to the atmosphere. The heat contained in the combustion gas is transferred to the water flowing through the water tubes 111, 121, 131 and 211. The heated water is supplied to heating or power generation facilities.

The second combustion chamber 120 is located above the first combustion chamber 110. The second combustion chamber 120 is made by welding the water tubes 121 to each other. A second burner 16 is installed in the second combustion chamber 120. The second burner 16 secondarily burns the primarily burned waste.

The third combustion chamber 130 is located on the right side of the second combustion chamber 120. The second combustion chamber 120 and the third combustion chamber 130 are partitioned into a first partition W1. The top of the first partition W1 is pierced so that the combustion gas can move from the second combustion chamber 120 to the third combustion chamber 130. [ The third combustion chamber 130 is made by welding the water tubes 131 to each other. Below the third combustion chamber 130, there is installed a first hopper 17 in which ash contained in the combustion gas is collected.

The boiler 200 includes a body 210, an upper drum 220, a lower drum 230, and a superheater 240.

The body 210 is made by welding the water pipes 211. The interior of the body 210 is partitioned into a first boiler room S1 and a second boiler room S2 by a second partition W2. The bottom of the second partition W2 is pierced so that the combustion gas can move from the first boiler room S1 to the second boiler room S2. Below the second boiler room S1, there is installed a second hopper 18 in which ash contained in the combustion gas is collected. A chimney 14 for discharging the combustion gas into the atmosphere is installed above the second hopper 18.

The upper drum 220 is spherical and is installed on the upper part of the body 210. The upper drum 220 is in communication with the water tubes 111, 121, 131 and 211. Water and steam flowing in the water tubes 111, 121, 131 and 211 collect in the upper drum 220 and exist in the upper drum 220 in the state of saturated water and saturated steam.

The lower drum 230 is spherical and is installed at the bottom of the body 210. The lower drum 230 receives water from the outside and supplies the water to the water pipes 111, 121, 131, 211. The water flowing in the water tubes 111, 121, 131 and 211 passes through the first combustion chamber 110, the second combustion chamber 120, the third combustion chamber 130, the first boiler chamber 210 and the second boiler chamber 220 And receives heat from the combustion gas.

The superheater 240 is located inside the third combustion chamber 130. The superheater 240 is supplied with saturated steam from the upper drum 220. The superheater 240 supplies superheated steam to a heating or power generating facility.

As shown in FIGS. 1 and 2, the clinker reduction devices 300 are installed in the partition plate 112 constituting the first combustion chamber 110. The clinker reduction devices 300 are arranged at regular intervals. In FIG. 1, the clinker reduction devices 300 are wrapped around a square box to facilitate identification of the clinker reduction devices 300 disposed in the diaphragm 112.

The clinker reduction devices 300 are disposed on the upper side close to the grate 19 (0.5 to 1 m). This is because the waste is incinerated on the grate 19 so that the grate 19 is nearest to the first combustion chamber 110 at the highest temperature (900 to 1500 ° C.) and the waste is supplied to the inner wall of the first combustion chamber 110 It is most likely to be welded at high temperatures.

2 and 3, the clinker reduction device 300 includes a first body 310, a second body 320, a tube 330, and a nut 340. The dotted arrows shown in Fig. 3 indicate the air discharge direction.

The first body 310 passes through the hole 112a formed in the diaphragm 112 and is positioned in the first combustion chamber 110. Since the first body 310 is disposed in the first combustion chamber 110, the first body 310 is made of a heat-resistant ceramic material. On the upper surface of the first body 310, one injection port 311 is provided. Of course, the number of the injection ports 311 may be varied.

The second body 320 is connected to the rear end of the first body 310 and is located outside the first combustion chamber 110. A thread is formed on the outer circumferential surface of the second body 320.

The tube 330 is connected to the rear end of the second body 320 to supply air to the injection port 311. The tube 330 is connected to an air pump (not shown).

The nut 340 is fastened to the second body 320 to fix the first body 310 and the second body 320 to the diaphragm 112.

The air discharged through the injection port 311 prevents the dust from approaching the water pipe 111, thereby preventing the dust from sticking to the water pipe 111.

Hereinafter, a clinker reduction apparatus according to the first modification will be described.

4, the clinker reduction device 400 according to the first modification includes a first body 410, a second body 420, a tube 430, and a nut 440. The dotted arrows shown in Fig. 4 indicate the air discharge direction.

A first injection port 411 is provided on an upper surface of the first body 410 and a second injection port 412 is provided on a side surface of the first body 410 at regular intervals. The first jetting port 411 and the second jetting port 412 communicate with each other.

The air discharged through the first injection port 411 prevents the dust coming from the front from approaching the water pipe 111 and prevents the dust from sticking to the water pipe 111.

The air discharged through the second injection ports 412 prevents the dust coming from the side direction from approaching the water tube 111 and prevents the dust from sticking to the water tube 111.

The second body 420, the tube 430 and the nut 440 are the same as those of the second body 320, the tube 330 and the nut 340 of the clinker reduction device 300, respectively.

The clinker reduction device according to the second modification will be described below.

5, the clinker reduction apparatus 500 according to the second modification includes a first body 510, a second body 520, a tube 530, and a nut 540. As shown in FIG. The dotted arrows shown in Fig. 5 indicate the air discharge direction.

A first injection port 511 is provided on the upper surface of the first body 510 and a second injection port 512 inclined toward the partition plate 112 is provided at a predetermined interval on the side surface of the first body 510.

The first jetting port 511 and the second jetting ports 512 communicate with each other.

The air discharged through the first injection port 511 prevents the dust coming from the front surface from approaching the water pipe 111 and prevents the dust from sticking to the water pipe 111.

The air discharged through the second injection ports 512 prevents dust from flying in the lateral direction from approaching the water tube 111, preventing the dust from sticking to the water tube 111. The air ejected through the second ejection openings 512 bumps the diaphragm 112 to blow out the dust on the diaphragm 112.

The second body 520, the tube 530 and the nut 540 are identical to the second body 320, the tube 330 and the nut 340 of the clinker reduction device 300, respectively, and thus the description thereof will be omitted.

The clinker reduction devices 300, 400 and 500 are installed on the upper side close to the grate 19 where the clinker can easily occur and the dust covers the water pipe 111 and the cooling efficiency of the water pipe 111 is low And prevents the dust from approaching the water pipe (111). Therefore, in terms of the final objective of reducing the clinker, the purpose of the general shoot blower is completely different.

10: Clinker-less incinerator boiler system
110: first combustion chamber 120: second combustion chamber 130: third combustion chamber
111, 121, 131, 211:
112: diaphragm
200: Boiler
300, 400, 500: Clinker reduction device

Claims (5)

delete delete delete delete A first combustion chamber made up of water tubes and a diaphragm disposed between the water tubes so that dust can not be trapped between the water tubes by dropping the water tubes;
A second combustion chamber communicating with the first combustion chamber;
A third combustion chamber communicating with the second combustion chamber;
A boiler communicating with the third combustion chamber and comprising a body, an upper drum, a lower drum, and a superheater;
A first injection port located on the partition plate so as to protrude into the first combustion chamber and configured to discharge air toward the front face of the water tube and the partition plate so that the dust flying toward the water tube and the partition plate does not adhere to the water tube and the partition plate, A first body formed on both sides with a second jetting port for discharging air toward the diaphragm so as to directly bite and remove the dust adhered to the diaphragm by rearward inclination;
A second body connected to a rear end of the first body and having a thread formed on an outer circumferential surface thereof and passing through a hole formed in the partition plate and having a smaller diameter than the first body located outside the first combustion chamber;
A tube connected to a rear end of the second body to supply air to the first and second ejection orifices and connected to the air pump; And
And a nut fastened to the second body and fixing the first body and the second body to the diaphragm,
Wherein a passage connecting the first injection port and the tube is formed in a straight line in an inside of the second body and an inside of the first body in a horizontal direction,
Wherein the passage connecting the second jetting port and the tube is formed in a straight line in a horizontal direction inside the second body and is formed in a straight line inclined backward from the inside of the first body,
A passage formed in the second body of the passage connecting the first injection port and the tube and a passage formed in the second body of the passage connecting the second injection port and the tube are a common passage,
The air supplied to the tube from the air pump is divided into the first jetting port and the second jetting port through the common passage,
The air ejected from the first ejection port pushes out the dust flying toward the water tube and the diaphragm, and at the same time, the air ejected from the second ejection opening blows away the dust adhering to the diaphragm, Clinker Reduced Incinerator Boiler System.
KR1020160029329A 2016-03-11 2016-03-11 Trash boiler system capable of reducing clinker KR101843492B1 (en)

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KR101843492B1 true KR101843492B1 (en) 2018-03-29

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200412814Y1 (en) * 2005-12-30 2006-03-31 진주산업(주) Air nozzle liner for incinerator and anti-clinker apparatus using the same
KR101470569B1 (en) * 2014-06-13 2014-12-10 (주) 디아이비앤피 A trash boiler of water tube panel cooling type

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200412814Y1 (en) * 2005-12-30 2006-03-31 진주산업(주) Air nozzle liner for incinerator and anti-clinker apparatus using the same
KR101470569B1 (en) * 2014-06-13 2014-12-10 (주) 디아이비앤피 A trash boiler of water tube panel cooling type

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