JPH02126005A - Melting combustion device - Google Patents
Melting combustion deviceInfo
- Publication number
- JPH02126005A JPH02126005A JP27741888A JP27741888A JPH02126005A JP H02126005 A JPH02126005 A JP H02126005A JP 27741888 A JP27741888 A JP 27741888A JP 27741888 A JP27741888 A JP 27741888A JP H02126005 A JPH02126005 A JP H02126005A
- Authority
- JP
- Japan
- Prior art keywords
- combustion unit
- slag
- sub
- combustor
- throat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 49
- 230000008018 melting Effects 0.000 title claims description 19
- 238000002844 melting Methods 0.000 title claims description 19
- 239000002893 slag Substances 0.000 claims abstract description 65
- 239000000567 combustion gas Substances 0.000 claims abstract description 20
- 239000000446 fuel Substances 0.000 claims abstract description 10
- 238000002347 injection Methods 0.000 claims abstract description 10
- 239000007924 injection Substances 0.000 claims abstract description 10
- 238000000926 separation method Methods 0.000 abstract description 20
- 230000000694 effects Effects 0.000 abstract description 6
- 239000010419 fine particle Substances 0.000 abstract description 2
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000007599 discharging Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 10
- 239000003245 coal Substances 0.000 description 9
- 239000002956 ash Substances 0.000 description 4
- 238000002309 gasification Methods 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 2
- 230000008646 thermal stress Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 239000010883 coal ash Substances 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Combustion Of Fluid Fuel (AREA)
- Incineration Of Waste (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野］
本発明は不燃性物質や難燃性物質を含有する燃料の溶融
燃焼装置に関するもので、石炭焚きボイラ、スランジ焚
きボイラ、各種廃棄物燃焼設備等に適用できるゆ
［従来の技術］
第１図および第８図は、いずれも従来の石炭溶融燃焼装
置の例を示す縦断側面図であって、第７図は横形、第８
図は縦形の例である。これらの図において、Ｏｌは燃焼
器、０２は燃料投入ノズル、０３は燃焼用空気管、０４
は空気投入ノズル、０５はスラグバッフル、０６はスラ
グタンプ、０７はスラグビン、０８は燃焼ガス出口ダク
トをそれぞれ示す。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a melting and combustion device for fuel containing non-combustible and flame-retardant substances, and is applicable to coal-fired boilers, slang-fired boilers, and various waste combustion equipment. [Prior art] Fig. 1 and Fig. 8 are both longitudinal sectional side views showing examples of conventional coal melting and combustion equipment, and Fig. 7 is a horizontal type,
The figure shows a vertical example. In these figures, Ol is the combustor, 02 is the fuel injection nozzle, 03 is the combustion air pipe, and 04 is the combustion air pipe.
05 is a slag baffle, 06 is a slag tamp, 07 is a slag bin, and 08 is a combustion gas outlet duct.
まず横形の石炭溶融燃焼装置について説明する。First, a horizontal coal melting and combustion apparatus will be explained.
燃料投入ノズル０２から燃焼器Ｏｌ内に投入された燃料
は、空気投入ノズル０４から接線方向に投入される燃焼
空気により、旋回力を（４与され高速燃焼する。燃焼器
０１内の熱負荷は高く、燃焼残漬物は溶融し遠心力で内
壁に付着し流下する。）容融残渣はスラグバッフル０５
で分離され、同スラグパンフルの下部に設けられた切欠
部を通り、スラグタップ０６を経てスラグビン０７に落
下する。燃焼ガスは燃焼ガス出力ダク）０８を経て外部
へ出ていく。The fuel injected into the combustor Ol from the fuel injection nozzle 02 is given a swirling force (4) by the combustion air tangentially injected from the air injection nozzle 04 and burns at high speed.The heat load in the combustor 01 is (The combustion residue melts and adheres to the inner wall due to centrifugal force and flows down.) The melted residue is transferred to the slag baffle 05.
The slag is separated from the slag pan, passes through a notch provided at the bottom of the slag pan, and falls into the slag bin 07 via the slag tap 06. The combustion gas exits to the outside through the combustion gas output duct (08).
縦形の石炭溶融燃焼装置においても、上記横形の場合と
ほぼ同様であるが、スラグバッフルによる分離は行なわ
れない。In a vertical type coal melting and combustion apparatus, it is almost the same as the above-mentioned horizontal type, but separation by a slag baffle is not performed.
［発明が解決しようとする課題］
前記横形のｉ８融燃焼装置には次のような問題点があっ
た。[Problems to be Solved by the Invention] The horizontal i8 fusion and combustion apparatus had the following problems.
（１） 分離機構が燃焼器における遠心分離機構のみ
であり、充分な分離機能が得られない。(1) The only separation mechanism is a centrifugal separation mechanism in the combustor, and sufficient separation function cannot be obtained.
（２）スラグパンフルの上部に付着した溶融残渣が重力
により落下し、同スラグバッフル部の高速ガス流により
再飛散する。(2) The molten residue adhering to the top of the slag panful falls due to gravity and is re-dispersed by the high-speed gas flow in the slag baffle.
（３）溶融残渣は燃焼器底部に溜り全周に一様に付着し
ないので、壁面内に温度差が発生し熱応力を生しる。(3) Since the molten residue accumulates at the bottom of the combustor and does not adhere uniformly around the entire circumference, a temperature difference occurs within the wall surface, causing thermal stress.
（４）溶融残渣中の可燃分の燃焼完結に必要な滞留時間
が充分には確保できない。(4) Sufficient residence time required for the completion of combustion of the combustible components in the melted residue cannot be secured.
また縦形の場合には次のような問題点があった。Further, in the case of a vertical type, there are the following problems.
（１）溶融残渣の滞留時間が充分には確保できない。(1) Sufficient residence time of the molten residue cannot be ensured.
（２）スラグビンにおける熱損失、ビン貯水の茎発が大
きい。(2) Heat loss in the slag bin and water buildup in the bin are large.
上記のように従来の溶融燃焼装置は、縦形であれ横形で
あれ、溶融残渣の分離捕集および溶融残渣中に含有され
る可燃成分の完全燃焼に難点があった。As described above, conventional melting and combustion apparatuses, whether vertical or horizontal, have problems in separating and collecting the melting residue and in completely burning the combustible components contained in the melting residue.
（課題を解決するための手段〕
本発明は、前記従来の課題を解決するために、次のよう
な溶融燃焼装置を提案するものである。(Means for Solving the Problems) In order to solve the above-mentioned conventional problems, the present invention proposes the following melting combustion apparatus.
（１）軸線が鉛直な円筒状で、下端が円錐状に絞られて
スロートを形成し、かつ−上部に軸線方向を向いた燃料
投入ノズルおよび接線方向を向いた空気投入ノズルをａ
する主燃焼器と、軸線が水平に対し傾斜した円筒状で、
高位置端に上記スロートの下端が接続、され、かつ低位
置端に燃焼ガスの出口およびスラグの排出口を有する副
燃焼器とを具備したことを特徴とする溶融燃焼装置。(1) It has a cylindrical shape with a vertical axis, the lower end is narrowed into a conical shape to form a throat, and the upper part has a fuel injection nozzle facing the axial direction and an air injection nozzle facing the tangential direction.
The main combustor has a cylindrical shape with an axis inclined to the horizontal.
A melting combustion apparatus characterized in that the lower end of the throat is connected to a high end, and a secondary combustor has a combustion gas outlet and a slag discharge port at a low end.
（２） スロートの下端が副燃焼器の接線方向に接続
されたことを特徴とする上記（１）記載の溶融燃焼装置
。(2) The melting combustion device according to (1) above, wherein the lower end of the throat is connected to the tangential direction of the sub-combustor.
（３）スロートの入口部周辺に、副燃焼器の高位置側に
切欠ぎを有するスラグバッフルが設けられたことを特徴
とする上記（１）または（２）記載の溶融燃焼装置。(3) The melting combustion device according to (1) or (2) above, characterized in that a slag baffle having a notch on the higher side of the sub-combustor is provided around the inlet of the throat.
本発明は上記のとおり構成され、次の作用を有する。 The present invention is configured as described above and has the following effects.
（１）主燃焼器が円筒状すなわち軸対称の縦形であり、
燃焼ガスと溶融残渣の流れがいずれも下向きなので、安
定した旋回燃焼と旋回力の減衰防止が達成され、高い燃
焼効率と溶融残渣の高い分離捕集効率が得られる。また
、溶融残渣の炉壁付着が均一となって熱応力が低減し、
信転性が向上する。さらに燃焼ガスと溶融残渣とが同一
方向に流れるから、−旦分離した溶融スラグが再飛散し
ない。(1) The main combustor is cylindrical, that is, axially symmetrical and vertical;
Since both the combustion gas and the molten residue flow downward, stable swirling combustion and prevention of decay of the swirling force are achieved, resulting in high combustion efficiency and high separation and collection efficiency of the molten residue. In addition, the adhesion of melted residue to the furnace wall becomes uniform, reducing thermal stress.
Confidence improves. Furthermore, since the combustion gas and the molten residue flow in the same direction, the molten slag that has been separated will not be scattered again.
（２）主燃焼器の出口部が円錐状に絞られているので、
遠心力の増力口により分離効率がさらに向上する。(2) Since the outlet of the main combustor is narrowed into a conical shape,
Separation efficiency is further improved by the centrifugal force amplification port.
（３）主燃焼器出口に横型の副燃焼器が接続され、主燃
焼器出口ガスが高速で導入されるので、ガス中の微粒子
が副燃焼器底部に衝突して捕集分離される。(3) A horizontal sub-combustor is connected to the main combustor outlet, and the main combustor outlet gas is introduced at high speed, so that particulates in the gas collide with the bottom of the sub-combustor and are collected and separated.
（４）副燃焼器の出口端にスラグの排出口が配されてい
るので、副燃焼器の入口から出口に至る間に溶融残渣中
の可燃成分の燃焼完結に必要な滞留時間が確保され、燃
料を完全燃焼さセることができる。(4) Since the slag discharge port is arranged at the outlet end of the sub-combustor, the residence time necessary for the completion of combustion of the combustible components in the molten residue is secured between the inlet and the outlet of the sub-combustor, The fuel can be completely burned.
（５）主燃焼器出口のスロートが副燃焼器の接線方向に
取付けられる場合は、副燃焼器においても強い旋回流れ
が確立されるので、燃焼ガス中に浮苗する微粒の溶融残
渣が遠心力により捕集分離される。(5) If the throat of the main combustor outlet is installed in the tangential direction of the sub-combustor, a strong swirling flow will be established in the sub-combustor as well, so the fine molten residue floating in the combustion gas will be affected by the centrifugal force. It is collected and separated by
（６）主燃焼器出口のスロートの入口部周辺に、副燃焼
器の高位置側、すなわち副燃焼器内で燃焼ガスが流れる
方向と反対の側に切欠きを有するスラグバッフルが設け
られる場合は、この切欠部を溶融残渣が流下するので、
主燃焼器で捕集された溶融スラグの再飛散が防止される
。(6) When a slag baffle with a notch is provided around the inlet of the throat at the main combustor outlet on the high side of the sub-combustor, that is, on the side opposite to the direction in which combustion gas flows in the sub-combustor. , as the molten residue flows down this notch,
This prevents the molten slag collected in the main combustor from scattering again.
第１回は本発明の一実施例を示す縦断側面図、第２図は
第１図の■−■矢視平面図である０円筒状で縦形の主燃
焼器１の上部に燃料投入ノズル２が装着されており、微
粉炭が一次混合気として軸方向に成る広がり角度で投入
される。一方、二次空気は燃焼用空気管３により供給さ
れ、主燃焼器１の上部に接線方向に取付けられた空気投
入ノズル４から、タンゼンシャルに投入される。空気量
は、主燃焼器出口で空気比が１．０以下例えば０．７の
ように、燃焼器が還元雰囲気で、かつ燃焼器内温度が投
入微粉炭含有灰の溶融温度以上になるような燃焼量を維
持するに必要な量に、制御される。The first part is a longitudinal side view showing an embodiment of the present invention, and the second part is a plan view taken along arrows 1--2 in Fig. is installed, and pulverized coal is introduced as a primary mixture at an axial spread angle. On the other hand, secondary air is supplied by a combustion air pipe 3 and is tangentially injected from an air inlet nozzle 4 tangentially attached to the upper part of the main combustor 1. The amount of air should be set such that the air ratio at the outlet of the main combustor is 1.0 or less, for example 0.7, so that the combustor is in a reducing atmosphere and the temperature inside the combustor is higher than the melting temperature of the input pulverized coal-containing ash. The amount is controlled to the amount necessary to maintain the combustion amount.
主燃焼器は断熱構造になっており、溶融スラグによる断
熱層形成の効果と相俟って燃焼器内温度は高温に維持さ
れる。The main combustor has an adiabatic structure, and the temperature inside the combustor is maintained at a high temperature by the effect of the insulation layer formed by the molten slag.
投入された微粉炭は、タンゼンシャルに投入された二次
空気と共に激しい旋回運動をしながら、高温下でガス化
燃焼して、可燃成分はｃｏ、 ｃｏ２ＨＥ、 ＩＣ，Ｈ
，Ｏ等となる。そして旋回しながら出口のスロート９へ
至る。一方微扮炭中に含まれていた灰分は、溶融して遠
心力で燃焼器壁面に飛ばされ捕集され、壁面を流下する
溶融スラグ層を形成する０粒径の大きい微粉炭は未完全
燃焼の状態で周壁の溶融スラグに捕集されるが、流下す
る間にガス化燃焼を完了する。主燃焼器１の出口部は円
錐状に形成されているので、出口部では遠心力が増し、
したがって燃焼ガス中の微粒子も流下スラグに付着捕集
される。The injected pulverized coal undergoes intense swirling motion together with the secondary air injected into the tangential, and is gasified and combusted at high temperatures, resulting in combustible components such as co, co2HE, IC, and H.
, O, etc. Then, it reaches the exit throat 9 while turning. On the other hand, the ash contained in the pulverized coal is melted and blown to the combustor wall by centrifugal force and collected, and the pulverized coal with large particle size forms a layer of molten slag flowing down the wall. It is collected in the molten slag on the peripheral wall in this state, but gasification and combustion are completed while it flows down. Since the outlet of the main combustor 1 is formed in a conical shape, centrifugal force increases at the outlet,
Therefore, particulates in the combustion gas are also attached to and collected by the flowing slag.
このようにして主燃焼器１で第１段階のガス化燃焼と石
炭灰の溶融分離とが行なわれるが、燃焼ガス中にはさら
に微粒の溶融灰が残存しており、また溶融スラグ中には
微少の可燃分が残存するが、これは次の第２段階（副燃
焼器）で完全に除去、ガス化される。In this way, the first stage of gasification combustion and melting and separation of coal ash are carried out in the main combustor 1, but fine particles of molten ash still remain in the combustion gas, and in addition, molten ash remains in the molten slag. Although a small amount of combustible matter remains, this is completely removed and gasified in the next second stage (auxiliary combustor).
副燃焼器１０は、軸線が水平に対し若干傾斜した円筒状
で、その高位置端（図では左側）に上記スロート９の下
端が接続されている。The sub-combustor 10 has a cylindrical shape with an axis slightly inclined with respect to the horizontal, and the lower end of the throat 9 is connected to its high end (left side in the figure).
主燃焼器１の周壁を流下したスラグはスロート９を流下
し副燃焼器１０の底部へ落下°する。こうして副燃焼器
底部には溶融スラグ層が形成される。The slag that has flowed down the peripheral wall of the main combustor 1 flows down the throat 9 and falls to the bottom of the auxiliary combustor 10. In this way, a molten slag layer is formed at the bottom of the sub-combustor.
また燃焼ガス中に含有される微粒スラグは、燃焼ガスが
主燃焼器スロート９から副燃焼器１０内へ高速で吹き出
されるため慣性力を付与され、副燃焼器１０底部のスラ
グ層に衝突し付着捕集される。このように本実施例の溶
融燃焼装置は、スラグの分離に関して、主燃焼器におけ
る遠心分離と副燃焼器における衝突分離の二段分離機能
を有している。Furthermore, the fine slag contained in the combustion gas is subjected to inertial force as the combustion gas is blown out from the main combustor throat 9 into the sub-combustor 10 at high speed, and collides with the slag layer at the bottom of the sub-combustor 10. Adhesion is collected. As described above, the melting combustion apparatus of this embodiment has a two-stage separation function for slag separation: centrifugal separation in the main combustor and collision separation in the sub-combustor.
次に主燃焼器ｌの出口の溶融スラグ中には炭素等の未燃
粒子が含有されることがあるが、これは副燃焼器１０の
低い方へ（図の右方へ）溶融スラグがゆっくりと流動す
る間に、酸素、水素または水茎気と反応してガス化する
。このようにしてスラグ中の可燃成分はすべてガス化す
る。Next, the molten slag at the outlet of the main combustor 1 may contain unburned particles such as carbon, but this is caused by the molten slag slowly moving toward the lower part of the auxiliary combustor 10 (toward the right in the figure). While flowing, it reacts with oxygen, hydrogen, or water vapor and becomes gas. In this way, all combustible components in the slag are gasified.
副燃焼器１０の低位置端（図の右端）にはスラグタップ
６が設置され、溶融スラグがスラグビン７へ流下して排
出される構造になっている。溶融スラグが除去されたク
リーンな燃焼ガスは、燃焼ガス出口ダクト８より高温燃
料として外部へ供給されるや
第３図は本発明の第２の実施例を示す縦断側面図、第４
図は第３図の■−■矢視平面図である。A slag tap 6 is installed at the lower end (right end in the figure) of the sub-combustor 10, and has a structure in which molten slag flows down into a slag bin 7 and is discharged. The clean combustion gas from which the molten slag has been removed is supplied to the outside as high-temperature fuel through the combustion gas outlet duct 8.
The figure is a plan view taken along the line ■-■ in FIG. 3.
本実施例では、主燃焼器ｌ出口のスロート９の下端が副
ｆ！！焼器１０の接線方向に接続されている。したがっ
て、主燃焼２Ｗ１の出口ガス中に含有される微粒スラグ
は副燃焼器ＩＯで更に旋回流動して遠心分離（２Ｖ１．
階の遠心分離）される。In this embodiment, the lower end of the throat 9 at the main combustor l outlet is the subf! ! It is connected in the tangential direction of the roaster 10. Therefore, the fine slag contained in the outlet gas of the main combustion 2W1 further swirls in the sub-combustor IO and is centrifuged (2V1.
centrifugation).
第５図は、本発明の第３の実施例るこｔ８ける主燃焼器
出口のスロート９人口部の構造を示す縦断側面図、第６
図は第５図のＶｌ−Ｖｌ矢視下面図である。FIG. 5 is a longitudinal sectional side view showing the structure of the throat 9 at the main combustor outlet in the third embodiment of the present invention;
The figure is a bottom view taken along the line Vl-Vl in FIG.
不実１例ではスロート９の入口部周辺にスラグバッフル
１１が設けられている。このスラグバッフル１１は、副
燃焼器１０の高位置側（図の左側）に切欠ぎを有する。In one example, a slug baffle 11 is provided around the entrance of the throat 9. This slag baffle 11 has a notch on the high position side (left side in the figure) of the sub-combustor 10.
したがって、溶融スラグが副燃焼室ＩＯ内に流下する際
、ガスの流れる向きと反対側（図の左側）に偏ってスロ
ート９を流下し、ガスの主流中を流下し２ないから、主
群３ｆｆ、２Ｎｌ内で［Ｍ集された溶融スラグがガス流
中へ再飛散するのが防止される。Therefore, when the molten slag flows down into the sub-combustion chamber IO, it flows down the throat 9 biased to the opposite side (left side in the figure) to the direction of gas flow, and flows down in the main stream of gas, so the main group 3ff , 2Nl [M] The collected molten slag is prevented from re-entraining into the gas stream.
本発明によれば次の効果が得られる。 According to the present invention, the following effects can be obtained.
（１）旋回燃焼を主体とする縦形の主燃焼器と横形形の
副燃焼器を接合一体化し、主燃焼器における遠心分離機
能と副燃焼具入口部における衝突分離機能とにより、非
常に高い（９５％以上）スラグ分離機能を達成すること
ができる。(1) The vertical main combustor, which mainly uses swirl combustion, and the horizontal sub-combustor are joined and integrated, and the centrifugal separation function in the main combustor and the collision separation function at the inlet of the sub-combustor result in extremely high 95% or more) slag separation function can be achieved.
（２）横形の副燃焼器においてスラグ流に充分な滞留時
間が確保できるので、スラグ中の可燃分は完全にガス化
し高いガス化燃焼効率（９９％以上）が得られる。これ
は、スラグ中の可燃分のガス化速度に応し、必要なスラ
グ滞留時間が得られるように副燃焼器長さを選定するこ
とにより、達成される。(2) Since sufficient residence time can be secured for the slag flow in the horizontal sub-combustor, the combustible content in the slag is completely gasified, resulting in high gasification combustion efficiency (99% or more). This is achieved by selecting the sub-combustor length to obtain the required slag residence time, depending on the rate of gasification of the combustibles in the slag.
（３）副燃焼室でも上記（１）の衝突分離に加えて旋回
流による遠心分離機能を持たせることにより、非常に高
いスラグ分離効率を達成することができる。(3) Very high slag separation efficiency can be achieved by providing the sub-combustion chamber with a centrifugal separation function using swirling flow in addition to the collision separation described in (1) above.
（４）主燃焼器の周壁に付着して捕集されたスラグを下
部のスロート部に流下させる際、スラグバッフルでスラ
グをスロートのガス流と反対側を流下する様に導いてや
ることにより、副燃焼罪人口部で落下スラグが燃焼ガス
を横切ることがなく、スラグのガス流への再飛散が防止
できる。(4) When the slag collected adhering to the peripheral wall of the main combustor is allowed to flow down to the lower throat section, by guiding the slag down the throat on the side opposite to the gas flow using the slag baffle, Falling slag does not cross the combustion gas in the secondary combustion chamber, and re-scattering of the slag into the gas flow can be prevented.
したがって高いスラグ捕集効率を維持することができる
。Therefore, high slag collection efficiency can be maintained.
第１回は本発明の一実施例を示す縦断側面図、第２図は
第１図の■−■矢視平而図面ある。第３図は本発明の第
２の実施例を示す可断面図、第４圀は第３回のＩＶ−Ｉ
Ｖ矢視平面図である。第５図は本発明の第３の実施例に
おける主燃焼器出口スロートの入口部構造を示ず継断側
面図、第６図は第５図のＶｌ−Ｖｌ矢視平百図である。
第７回および第８図は、いずれも従来の石炭溶融燃焼装
置の例を示す縦断側面図である。
０１ 燃焼器、 １ 主燃焼器、０２．２
燃料投入ノズル、０３，３−燃焼用空ス管、０４．
４ 空気投入ノズル、０５ スラグパンフル、０６
．６−スラグタツプ、 ０７，７− スラグビン、０８
．８ 燃焼ガス出口ダクト、
９ 主燃焼器スロート、ｌ〇−副燃焼器、１１ 縦形
スラグパンフル。The first part is a vertical sectional side view showing one embodiment of the present invention, and the second part is a plain view taken along arrows 1--2 of FIG. FIG. 3 is a cross-sectional view showing the second embodiment of the present invention, and the fourth section is the third IV-I.
It is a top view seen from the V arrow. FIG. 5 is a joint cross-sectional side view, not showing the structure of the inlet part of the main combustor outlet throat, in a third embodiment of the present invention, and FIG. 6 is a plan view taken along the line Vl--Vl in FIG. 7th and 8 are vertical side views showing examples of conventional coal melting and combustion apparatuses. 01 Combustor, 1 Main combustor, 02.2
Fuel injection nozzle, 03,3-Empty combustion pipe, 04.
4 Air injection nozzle, 05 Slag pan full, 06
．． 6-Slug tap, 07,7-Slug bin, 08
．． 8 Combustion gas outlet duct, 9 Main combustor throat, l〇-auxiliary combustor, 11 Vertical slag pan full.
Claims (3)
スロートを形成し、かつ上部に軸線方向を向いた燃料投
入ノズルおよび接線方向を向いた空気投入ノズルを有す
る主燃焼器と、軸線が水平に対し傾斜した円筒状で、高
位置端に上記スロートの下端が接続され、かつ低位置端
に燃焼ガスの出口およびスラグの排出口を有する副燃焼
器とを具備したことを特徴とする溶融燃焼装置。(1) A main combustor that has a cylindrical shape with a vertical axis, whose lower end is conically constricted to form a throat, and has a fuel injection nozzle facing the axial direction and an air injection nozzle facing the tangential direction at the top. , having a cylindrical shape with an axis inclined with respect to the horizontal, the lower end of the throat is connected to the high end, and the secondary combustor has a combustion gas outlet and a slag discharge port at the low end. Melting combustion equipment.
たことを特徴とする請求項（１）記載の溶融燃焼装置。(2) The melting combustion device according to claim (1), wherein the lower end of the throat is connected to the sub-combustor in a tangential direction.
切欠ぎを有するスラグバッフルが設けられたことを特徴
とする請求項（１）または（２）記載の溶融燃焼装置。(3) The melting combustion apparatus according to claim 1 or 2, further comprising a slag baffle having a notch on a higher side of the sub-combustor around the inlet of the throat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63277418A JP2582419B2 (en) | 1988-11-04 | 1988-11-04 | Melt combustion equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63277418A JP2582419B2 (en) | 1988-11-04 | 1988-11-04 | Melt combustion equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02126005A true JPH02126005A (en) | 1990-05-15 |
| JP2582419B2 JP2582419B2 (en) | 1997-02-19 |
Family
ID=17583276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63277418A Expired - Lifetime JP2582419B2 (en) | 1988-11-04 | 1988-11-04 | Melt combustion equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2582419B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0330012U (en) * | 1989-07-25 | 1991-03-25 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60202208A (en) * | 1984-03-26 | 1985-10-12 | Kawasaki Heavy Ind Ltd | Cyclone type combustion apparatus |
| JPS63172808A (en) * | 1987-01-12 | 1988-07-16 | Tsukishima Kikai Co Ltd | Melting furnace of swirl air type |
| JPS63142516U (en) * | 1987-03-02 | 1988-09-20 |
-
1988
- 1988-11-04 JP JP63277418A patent/JP2582419B2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60202208A (en) * | 1984-03-26 | 1985-10-12 | Kawasaki Heavy Ind Ltd | Cyclone type combustion apparatus |
| JPS63172808A (en) * | 1987-01-12 | 1988-07-16 | Tsukishima Kikai Co Ltd | Melting furnace of swirl air type |
| JPS63142516U (en) * | 1987-03-02 | 1988-09-20 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0330012U (en) * | 1989-07-25 | 1991-03-25 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2582419B2 (en) | 1997-02-19 |
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