JPH0642731A - Double stage fluidized bed type coal gas furnace - Google Patents
Double stage fluidized bed type coal gas furnaceInfo
- Publication number
- JPH0642731A JPH0642731A JP19867392A JP19867392A JPH0642731A JP H0642731 A JPH0642731 A JP H0642731A JP 19867392 A JP19867392 A JP 19867392A JP 19867392 A JP19867392 A JP 19867392A JP H0642731 A JPH0642731 A JP H0642731A
- Authority
- JP
- Japan
- Prior art keywords
- gas
- slag
- ejector
- furnace
- slag hole
- 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.)
- Withdrawn
Links
- 239000003034 coal gas Substances 0.000 title 1
- 239000002893 slag Substances 0.000 claims abstract description 65
- 239000003245 coal Substances 0.000 claims abstract description 41
- 238000002309 gasification Methods 0.000 claims abstract description 26
- 238000006243 chemical reaction Methods 0.000 claims abstract description 16
- 238000002485 combustion reaction Methods 0.000 claims abstract description 14
- 239000007789 gas Substances 0.000 claims description 49
- 238000002347 injection Methods 0.000 claims description 7
- 239000007924 injection Substances 0.000 claims description 7
- 239000000567 combustion gas Substances 0.000 claims description 6
- 239000000446 fuel Substances 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 24
- 235000002918 Fraxinus excelsior Nutrition 0.000 abstract 1
- 239000002956 ash Substances 0.000 abstract 1
- 238000007599 discharging Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000003638 chemical reducing agent Substances 0.000 description 7
- 230000001105 regulatory effect Effects 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
Landscapes
- Gasification And Melting Of Waste (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、２段噴流床石炭ガス化
炉に関するものである。FIELD OF THE INVENTION The present invention relates to a two-stage spouted bed coal gasification furnace.
【０００２】[0002]
【従来の技術】従来の２段噴流床石炭ガス化炉を図２に
より説明すると、１が火炉、２が圧力容器、３が水管、
４がコンバスタ、５がリダクタ、６が微粉炭供給設備、
７、８が混合気体、９が微粉炭供給設備、１０が燃焼用
空気、１１が溶融スラグ、１２がスラグホール、１３が
スラグタンク、１４が生成ガス、１５がクリーンナップ
設備、１６がガスタービン、１７が蒸気、１８が蒸気タ
ービン、１９が圧調弁である。2. Description of the Related Art A conventional two-stage spouted bed coal gasification furnace will be described with reference to FIG. 2. 1 is a furnace, 2 is a pressure vessel, 3 is a water pipe,
4 is a combustor, 5 is a reductor, 6 is a pulverized coal supply facility,
7 and 8 are mixed gas, 9 is pulverized coal supply equipment, 10 is combustion air, 11 is molten slag, 12 is slag hole, 13 is slag tank, 14 is produced gas, 15 is cleanup equipment, 16 is gas turbine, Reference numeral 17 is steam, 18 is a steam turbine, and 19 is a pressure regulating valve.
【０００３】上記火炉１本体が、圧力容器２と、炉を形
成する水管３との二重構造になっている。そして水管３
群の内方下部に燃焼を行うコンバスタ４が形成され、水
管３群の内方上部にガス化反応を行うリダクタ５が形成
されている。微粉炭供給設備６から送出される微粉炭と
同微粉炭を気流搬送する空気との混合気体７がコンバス
タ４へ供給され、別途供給される燃焼用空気１０により
高温、高負荷燃焼が行われて、その際発生する高温燃焼
ガスがリダクタ５へ供給される。The main body of the furnace 1 has a double structure of a pressure vessel 2 and a water pipe 3 forming the furnace. And water pipe 3
A combustor 4 that performs combustion is formed in the lower inside of the group, and a reductor 5 that performs a gasification reaction is formed in the upper inside of the group of water pipes 3. A mixed gas 7 of pulverized coal sent out from the pulverized coal supply equipment 6 and air for carrying the same in a stream is supplied to the combustor 4, and combustion air 10 separately supplied performs high temperature and high load combustion. The high temperature combustion gas generated at that time is supplied to the reducer 5.
【０００４】同様に微粉炭供給設備９から送出される微
粉炭と同微粉炭を気流搬送する空気との混合気体８がリ
ダクタ５へ噴射され、コンバスタ４に発生した高温燃焼
ガスにより乾留されて、ガス化が行われる。このとき、
コンバスタ４内では、高温燃焼により石炭中の灰分が溶
融化して、溶融スラグ１１になり、スラグホール１２か
ら自然落下して、水を貯えたスラグタンク１３内へ排出
され、水砕されて、系外へ搬出される。Similarly, a mixed gas 8 of the pulverized coal sent from the pulverized coal supply equipment 9 and the air carrying the pulverized coal in a stream is injected into the reductor 5 and is carbonized by the high temperature combustion gas generated in the combustor 4, Gasification takes place. At this time,
In the combustor 4, the ash content in the coal is melted by the high temperature combustion to become the molten slag 11, which naturally falls from the slag hole 12 and is discharged into the slag tank 13 in which water is stored. It is carried out.
【０００５】一方、リダクタ５で生成された生成ガス１
４がクリーンナップ設備１５へ送られ、ここで脱塵、脱
硫され、次いで圧調弁１９を経てガスタービン１６へ送
られ、同ガスタービン１６が駆動されて、発電が行われ
る。また炉を形成する水管３内の水がコンバスタ４及び
リダクタ５の熱により気化され、蒸気１７になって、蒸
気タービン１８へ送られ、同蒸気タービン１８が駆動さ
れて、発電が行われる。On the other hand, the produced gas 1 produced by the reductor 5
4 is sent to the cleanup equipment 15, where it is dedusted and desulfurized, and then sent to the gas turbine 16 via the pressure regulating valve 19 and the gas turbine 16 is driven to generate electricity. Further, the water in the water pipe 3 forming the furnace is vaporized by the heat of the combustor 4 and the reductor 5, becomes steam 17, is sent to the steam turbine 18, and the steam turbine 18 is driven to generate electricity.
【０００６】炉内圧は、クリーンナップ設備１５下流側
の圧調弁１９により調整する。The pressure inside the furnace is adjusted by a pressure control valve 19 on the downstream side of the cleanup facility 15.
【０００７】[0007]
【発明が解決しようとする課題】前記図２に示す従来の
２段噴流床石炭ガス化炉には、次の問題があった。 （１）灰の融点が高い石炭を使用する場合、溶融スラグ
１１の粘度が高く、スラグホール１２部で固化、成長し
て、スラグホール１２を閉塞することがある。 （２）空気比（後記＊１参照）が低い条件で運転する場
合も、コンバスタ４内の温度が低下するため、上記
（１）と同様のトラブルが発生する。 （３）空気比を高くして、コンバスタ４内の温度を上昇
させると、スラグ排出性が向上するが、投入空気量が増
加するので、必然的に生成ガス１４のカロリーが低下す
る。The conventional two-stage jet bed coal gasification furnace shown in FIG. 2 has the following problems. (1) When coal having a high melting point of ash is used, the viscosity of the molten slag 11 is high, and the slag hole 12 may be solidified and grown to block the slag hole 12. (2) Even when operating under conditions where the air ratio (see * 1 below) is low, the temperature inside the combustor 4 drops, and the same trouble as in (1) above occurs. (3) If the air ratio is increased and the temperature inside the combustor 4 is raised, the slag discharge performance is improved, but the amount of input air is increased, so the calorie of the generated gas 14 is inevitably reduced.
【０００８】 本発明は前記の問題点に鑑み提案するものであり、その
目的とする処は、スラグホールの溶融スラグによる固化
及び閉塞を防止できて、安定した運転を行うことができ
る。また水性ガス化反応を促進でき、生成ガスカロリー
を増加できて、プラント効率を向上できる。さらに吸引
したガスをリダクタへ戻すことができて、熱損失をなく
すことができる２段噴流床石炭ガス化炉を提供しようと
する点にある。[0008] The present invention is proposed in view of the above problems, and the object thereof is to prevent solidification and blockage of a slag hole due to molten slag, and to perform stable operation. Further, the water gasification reaction can be promoted, the calorie of the generated gas can be increased, and the plant efficiency can be improved. Furthermore, the point is to provide a two-stage jet bed coal gasification furnace that can return the sucked gas to the reducer and eliminate heat loss.
【０００９】[0009]
【課題を解決するための手段】上記の目的を達成するた
めに、本発明は、気流により微粉炭燃料を高圧下の炉内
へ噴射して、燃焼させるとともに、そのとき発生する高
温燃焼ガス中へ微粉炭燃料を同様に噴射して、ガス化さ
せる２段噴流床石炭ガス化炉において、前記炉内の高温
燃焼により溶融化して溶融スラグになった石炭中の灰分
を排出するスラグホールの下部からガスを吸引するエゼ
クタと、同エゼクタにより吸引したガスを前記炉内のガ
ス化反応部へ噴射するガス噴射手段とを具えている。In order to achieve the above-mentioned object, the present invention is to inject pulverized coal fuel into a furnace under high pressure by an air flow to burn it, and in a high temperature combustion gas generated at that time. In a two-stage jet bed coal gasification furnace that similarly injects pulverized coal fuel to gasify it, the lower part of the slag hole that discharges the ash content in the coal that has been melted into molten slag by high temperature combustion in the furnace It comprises an ejector for sucking gas from the chamber and a gas injection unit for injecting the gas sucked by the ejector to the gasification reaction section in the furnace.
【００１０】[0010]
【作用】本発明の２段噴流床石炭ガス化炉は前記のよう
に構成されており、スラグホール部で溶融スラグの流動
性が悪い場合や溶融スラグが固化し始めた場合には、蒸
気タービンに向かう蒸気をエゼクタへ通気して、スラグ
ホール下部のガスを吸気側配管を経てエゼクタへ吸引
し、スラグホール下部のガス抜きを行って、コンバスタ
内の高温ガスをコンバスタ内→スラグホール内→スラグ
ホールの下部へ下向きに流し、スラグホールを高温化し
て、溶融スラグの流動性を高めたり、溶融スラグの固化
を防止する一方、吸引したガスと蒸気とをガス噴射手段
→リダクタ（ガス反応部）へ噴射して、水性ガス化反応
を促進する。The two-stage spouted bed coal gasification furnace of the present invention is constructed as described above, and when the molten slag has poor fluidity in the slag hole or when the molten slag begins to solidify, the steam turbine To the ejector, and the gas under the slag hole is sucked into the ejector through the intake pipe, and the lower part of the slag hole is degassed. It flows downward to the bottom of the hole to raise the temperature of the slag hole to increase the fluidity of the molten slag and prevent the molten slag from solidifying, while the sucked gas and steam are injected into the gas → Reductor (gas reaction part) To accelerate the water gasification reaction.
【００１１】[0011]
【実施例】次に本発明の２段噴流床石炭ガス化炉を図１
に示す一実施例により説明すると、１が火炉、２が圧力
容器、３が水管、４がコンバスタ、５がリダクタ、６が
微粉炭供給設備、７、８が混合気体、９が微粉炭供給設
備、１０が燃焼用空気、１１が溶融スラグ、１２がスラ
グホール、１３がスラグタンク、１４が生成ガス、１５
がクリーンナップ設備、１６がガスタービン、１７が蒸
気、１８が蒸気タービン、１９が圧調弁である。EXAMPLE A two-stage spouted bed coal gasification furnace of the present invention is shown in FIG.
1 is a furnace, 2 is a pressure vessel, 3 is a water pipe, 4 is a combustor, 5 is a reducer, 6 is pulverized coal supply equipment, 7 and 8 are mixed gas, and 9 is pulverized coal supply equipment. 10 is combustion air, 11 is molten slag, 12 is slag hole, 13 is slag tank, 14 is produced gas, 15
Is a cleanup facility, 16 is a gas turbine, 17 is steam, 18 is a steam turbine, and 19 is a pressure regulating valve.
【００１２】上記火炉１本体が、圧力容器２と、炉を形
成する水管３との二重構造になっている。そして水管３
群の内方下部に燃焼を行うコンバスタ４が形成され、水
管３群の内方上部にガス化反応を行うリダクタ５が形成
されている。また２０がエゼクタ、２１が駆動側配管、
２２が弁、２３が流量計、２４が吸気側配管、２５が出
口側配管（ガス噴射手段）で、エゼクタ２０が圧力容器
２と水管３との間に設置されている。エゼクタ２０をこ
の位置に設置したのは、エゼクタ２０を圧力容器２の内
側にして、耐圧設計を不用にするためと、圧力容器２の
貫通部を極力少なくするためとで、低コスト化を可能に
している。The furnace 1 main body has a double structure of a pressure vessel 2 and a water pipe 3 forming the furnace. And water pipe 3
A combustor 4 that performs combustion is formed in the lower inside of the group, and a reductor 5 that performs a gasification reaction is formed in the upper inside of the group of water pipes 3. Further, 20 is an ejector, 21 is a driving side pipe,
22 is a valve, 23 is a flow meter, 24 is an intake side pipe, 25 is an outlet side pipe (gas injection means), and the ejector 20 is installed between the pressure vessel 2 and the water pipe 3. The reason why the ejector 20 is installed at this position is that the ejector 20 is placed inside the pressure vessel 2 so that the pressure resistance design is unnecessary, and the penetrating portion of the pressure vessel 2 is reduced as much as possible, which enables cost reduction. I have to.
【００１３】そして蒸気タービン１８へ蒸気を供給する
蒸気配管が弁２２と流量計２３と駆動側配管２１とを介
してエゼクタ２０に接続され、スラグホール１２の下部
が吸気側配管２４を介してエゼクタ２０に接続され、エ
ゼクタ２０が出口側配管（ガス噴射手段）２５を介して
リダクタ（ガス反応部）５に接続されている。次に前記
図１に示す２段噴流床石炭ガス化炉の作用を具体的に説
明する。A steam pipe for supplying steam to the steam turbine 18 is connected to the ejector 20 via a valve 22, a flow meter 23 and a drive side pipe 21, and a lower portion of the slag hole 12 is connected to the ejector side via a suction side pipe 24. 20 and the ejector 20 is connected to the reducer (gas reaction part) 5 via an outlet side pipe (gas injection means) 25. Next, the operation of the two-stage spouted bed coal gasification furnace shown in FIG. 1 will be specifically described.
【００１４】微粉炭供給設備６から送出される微粉炭と
同微粉炭を気流搬送する空気との混合気体７がコンバス
タ４へ供給され、別途供給される燃焼用空気１０により
高温、高負荷燃焼が行われて、その際発生する高温燃焼
ガスがリダクタ５へ供給される。同様に微粉炭供給設備
９から送出される微粉炭と同微粉炭を気流搬送する空気
との混合気体８がリダクタ５へ噴射され、コンバスタ４
に発生した高温燃焼ガスにより乾留されて、ガス化が行
われる。A mixed gas 7 of the pulverized coal sent from the pulverized coal supply equipment 6 and the air carrying the pulverized coal in a stream is supplied to the combustor 4, and combustion air 10 separately supplied causes high temperature and high load combustion. The high temperature combustion gas generated at that time is supplied to the reducer 5. Similarly, a mixed gas 8 of the pulverized coal sent from the pulverized coal supply facility 9 and the air carrying the pulverized coal in a gas stream is injected to the reductor 5, and the combustor 4
Gasification is carried out by dry distillation of the high-temperature combustion gas generated in.
【００１５】このとき、コンバスタ４内では、高温燃焼
により石炭中の灰分が溶融化して、溶融スラグ１１にな
り、スラグホール１２から自然落下して、水を貯えたス
ラグタンク１３内へ排出され、水砕されて、系外へ搬出
される。一方、リダクタ５で生成された生成ガス１４が
クリーンナップ設備１５へ送られ、ここで脱塵、脱硫さ
れ、次いで圧調弁１９を経てガスタービン１６へ送ら
れ、同ガスタービン１６が駆動されて、発電が行われ
る。At this time, in the combustor 4, the ash content in the coal is melted by the high temperature combustion to form the molten slag 11, which is naturally dropped from the slag hole 12 and discharged into the slag tank 13 storing water, It is water granulated and carried out of the system. On the other hand, the produced gas 14 produced by the reductor 5 is sent to the cleanup equipment 15, where it is dedusted and desulfurized, and then sent to the gas turbine 16 through the pressure regulating valve 19 and the gas turbine 16 is driven. Power is generated.
【００１６】また炉を形成する水管３内の水がコンバス
タ４及びリダクタ５の熱により気化され、蒸気１７にな
って、蒸気タービン１８へ送られ、同蒸気タービン１８
が駆動されて、発電が行われる。上記２段噴流床石炭ガ
ス化炉の運転時、スラグホール１２部で溶融スラグ１１
の流動性が悪い場合や溶融スラグ１１が固化し始めた場
合には、弁２２を開き、蒸気１７を弁２２→流量計２３
→駆動側配管２１→エゼクタ２０へ通気して、スラグホ
ール１２下部のガスを吸気側配管２４を経てエゼクタ２
０へ吸引し、スラグホール１２下部のガス抜きを行っ
て、コンバスタ４内の高温ガスをコンバスタ４内→スラ
グホール１２内→スラグホール１２の下部へ下向きに流
し、スラグホール１２を高温化して、溶融スラグ１１の
流動性を高めたり、溶融スラグ１１の固化を防止する一
方、吸引したガスと蒸気１７とを出口側配管（ガス噴射
手段）２５→リダクタ（ガス反応部）５へ噴射して、水
性ガス化反応を促進する。Further, the water in the water pipe 3 forming the furnace is vaporized by the heat of the combustor 4 and the reductor 5, becomes steam 17, and is sent to the steam turbine 18.
Is driven to generate electricity. During operation of the two-stage spouted bed coal gasification furnace, the molten slag 11 is formed in the slag hole 12 part.
If the flowability of the molten slag 11 is low or if the molten slag 11 begins to solidify, the valve 22 is opened and the steam 17 is fed to the valve 22 → the flow meter 23.
→ Drive side pipe 21 → Ejector 20 is vented, and gas under slag hole 12 is passed through intake side pipe 24 to ejector 2
0 is sucked, the lower part of the slag hole 12 is degassed, and the high-temperature gas in the combustor 4 is caused to flow downward in the combustor 4 → inside the slag hole 12 → downward of the slag hole 12 to raise the temperature of the slag hole 12, While enhancing the fluidity of the molten slag 11 and preventing the molten slag 11 from solidifying, the sucked gas and the vapor 17 are injected to the outlet side pipe (gas injection means) 25 → reductor (gas reaction part) 5, Promotes water gasification reaction.
【００１７】[0017]
【発明の効果】本発明の２段噴流床石炭ガス化炉は前記
のようにスラグホール部で溶融スラグの流動性が悪い場
合や溶融スラグが固化し始めた場合には、蒸気タービン
に向かう蒸気をエゼクタへ通気して、スラグホール下部
のガスを吸気側配管を経てエゼクタへ吸引し、スラグホ
ール下部のガス抜きを行って、コンバスタ内の高温ガス
をコンバスタ内→スラグホール内→スラグホールの下部
へ下向きに流し、スラグホールを高温化して、溶融スラ
グの流動性を高めたり、溶融スラグの固化を防止する一
方、吸引したガスと蒸気とをガス噴射手段→リダクタ
（ガス反応部）へ噴射して、水性ガス化反応を促進する
ので、スラグホールの溶融スラグによる固化及び閉塞
を防止できて、安定した運転を行うことができる。水
性ガス化反応を促進でき、生成ガスカロリーを増加でき
て、プラント効率を向上できる。吸引したガスをリダ
クタへ戻すことができて、熱損失をなくすことができ
る。As described above, the two-stage spouted bed coal gasification furnace of the present invention uses steam for the steam turbine when the molten slag has poor fluidity in the slag hole or when the molten slag starts to solidify. To the ejector, and the gas in the lower part of the slag hole is sucked into the ejector through the intake side pipe, and the gas in the lower part of the slag hole is degassed. Flow downwards to raise the temperature of the slag hole to increase the fluidity of the molten slag and prevent the molten slag from solidifying, while injecting the sucked gas and vapor into the gas injection means → reducer (gas reaction part) Since the water gasification reaction is promoted, solidification and blockage of the slag hole due to the molten slag can be prevented, and stable operation can be performed. The water gasification reaction can be promoted, the calorie of the produced gas can be increased, and the plant efficiency can be improved. The sucked gas can be returned to the reducer, and heat loss can be eliminated.
【図１】本発明の２段噴流床石炭ガス化炉の一実施例を
示す系統図である。FIG. 1 is a system diagram showing an embodiment of a two-stage spouted bed coal gasification furnace of the present invention.
【図２】従来の２段噴流床石炭ガス化炉を示す系統図で
ある。FIG. 2 is a system diagram showing a conventional two-stage spouted bed coal gasification furnace.
１ 火炉 ２ 圧力容器 ３ 水管 ４ コンバスタ ５ リダクタ ６ 微粉炭供給設備 ７、８ 混合気体 ９ 微粉炭供給設備 １０ 燃焼用空気 １１ 溶融スラグ １２ スラグホール １３ スラグタンク １４ 生成ガス １５ クリーンナップ設備 １６ ガスタービン １７ 蒸気 １８ 蒸気タービン １９ 圧調弁 ２０ エゼクタ ２１ 駆動側配管 ２２ 弁 ２３ 流量計 ２４ 吸気側配管 ２５ 出口側配管（ガス噴射手段） 1 furnace 2 pressure vessel 3 water pipe 4 combustor 5 reductor 6 pulverized coal supply equipment 7, 8 mixed gas 9 pulverized coal supply equipment 10 combustion air 11 molten slag 12 slag hole 13 slag tank 14 generated gas 15 cleanup equipment 16 gas turbine 17 steam 18 Steam Turbine 19 Pressure Control Valve 20 Ejector 21 Drive Side Pipe 22 Valve 23 Flow Meter 24 Intake Side Pipe 25 Outlet Side Pipe (Gas Injection Means)
Claims (1)
噴射して、燃焼させるとともに、そのとき発生する高温
燃焼ガス中へ微粉炭燃料を同様に噴射して、ガス化させ
る２段噴流床石炭ガス化炉において、前記炉内の高温燃
焼により溶融化して溶融スラグになった石炭中の灰分を
排出するスラグホールの下部からガスを吸引するエゼク
タと、同エゼクタにより吸引したガスを前記炉内のガス
化反応部へ噴射するガス噴射手段とを具えていることを
特徴とした２段噴流床石炭ガス化炉。1. A two-stage jet flow for injecting pulverized coal fuel into a furnace under high pressure by an air flow to burn it, and at the same time injecting pulverized coal fuel into high-temperature combustion gas generated at that time to gasify it. In a bed coal gasification furnace, an ejector that sucks gas from the lower part of the slag hole that discharges ash in coal that has been melted by high-temperature combustion in the furnace to form molten slag, and the gas that has been sucked by the ejector A two-stage jet bed coal gasification furnace, characterized in that it comprises a gas injection means for injecting into a gasification reaction section inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19867392A JPH0642731A (en) | 1992-07-24 | 1992-07-24 | Double stage fluidized bed type coal gas furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19867392A JPH0642731A (en) | 1992-07-24 | 1992-07-24 | Double stage fluidized bed type coal gas furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0642731A true JPH0642731A (en) | 1994-02-18 |
Family
ID=16395147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19867392A Withdrawn JPH0642731A (en) | 1992-07-24 | 1992-07-24 | Double stage fluidized bed type coal gas furnace |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0642731A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998010225A1 (en) * | 1996-09-04 | 1998-03-12 | Ebara Corporation | Rotary fusing furnace and method for gasifying wastes using the rotating fusing furnace |
| JP2002370236A (en) * | 2001-06-15 | 2002-12-24 | Tlv Co Ltd | Steam vulcanizing equipment |
| CN109631029A (en) * | 2019-01-31 | 2019-04-16 | 刘学冰 | Double fluidized-bed boiler cigarette wind flow field pressure and dynamic equilibrium regulator control system and method |
-
1992
- 1992-07-24 JP JP19867392A patent/JPH0642731A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998010225A1 (en) * | 1996-09-04 | 1998-03-12 | Ebara Corporation | Rotary fusing furnace and method for gasifying wastes using the rotating fusing furnace |
| US6161490A (en) * | 1996-09-04 | 2000-12-19 | Ebara Corporation | Swirling-type melting furnace and method for gasifying wastes by the swirling-type melting furnace |
| US6283048B1 (en) | 1996-09-04 | 2001-09-04 | Ebara Corporation | Swirling-type melting furnace and method for gasifying wastes by the swirling-type melting furnace |
| JP2002370236A (en) * | 2001-06-15 | 2002-12-24 | Tlv Co Ltd | Steam vulcanizing equipment |
| CN109631029A (en) * | 2019-01-31 | 2019-04-16 | 刘学冰 | Double fluidized-bed boiler cigarette wind flow field pressure and dynamic equilibrium regulator control system and method |
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| Date | Code | Title | Description |
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| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 19991005 |