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JPH0733266B2 - Jet fluidized bed granulator - Google Patents

Jet fluidized bed granulator

Info

Publication number
JPH0733266B2
JPH0733266B2 JP36048992A JP36048992A JPH0733266B2 JP H0733266 B2 JPH0733266 B2 JP H0733266B2 JP 36048992 A JP36048992 A JP 36048992A JP 36048992 A JP36048992 A JP 36048992A JP H0733266 B2 JPH0733266 B2 JP H0733266B2
Authority
JP
Japan
Prior art keywords
diameter
nozzle
furnace
dispersion plate
fluidized bed
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.)
Expired - Lifetime
Application number
JP36048992A
Other languages
Japanese (ja)
Other versions
JPH06198159A (en
Inventor
二千隆 佐藤
克治 向井
俊幸 石鉢
橋本  勲
三樹雄 村尾
親徳 熊谷
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sumitomo Osaka Cement Co Ltd
Kawasaki Motors Ltd
Original Assignee
Sumitomo Osaka Cement Co Ltd
Kawasaki Jukogyo KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sumitomo Osaka Cement Co Ltd, Kawasaki Jukogyo KK filed Critical Sumitomo Osaka Cement Co Ltd
Priority to JP36048992A priority Critical patent/JPH0733266B2/en
Priority to TW082110601A priority patent/TW290530B/zh
Priority to DK93120421T priority patent/DK0605832T3/en
Priority to EP93120421A priority patent/EP0605832B1/en
Priority to DE69330940T priority patent/DE69330940T2/en
Priority to US08/174,693 priority patent/US5478234A/en
Priority to CN93119976A priority patent/CN1055755C/en
Priority to KR1019930030196A priority patent/KR970001243B1/en
Publication of JPH06198159A publication Critical patent/JPH06198159A/en
Publication of JPH0733266B2 publication Critical patent/JPH0733266B2/en
Priority to US08/469,198 priority patent/US5944513A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J8/00Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
    • B01J8/18Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles
    • B01J8/24Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique
    • B01J8/44Fluidisation grids

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Crucibles And Fluidized-Bed Furnaces (AREA)
  • Glanulating (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、多孔板型分散板を改善
した噴流流動層造粒炉に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a jet fluidized bed granulation furnace having an improved perforated plate type dispersion plate.

【0002】[0002]

【従来の技術】造粒炉の多孔板型分散板においては、同
一径のノズルを分散板全域にわたって均一になるように
配置している。(例えば、実開昭60−10198号公
報,特開平1−254242号公報,特開平1−284
509号公報参照)
2. Description of the Related Art In a perforated plate type dispersion plate of a granulating furnace, nozzles having the same diameter are arranged so as to be uniform over the entire area of the dispersion plate. (For example, JP-B-60-10198, JP-A-1-254242, and JP-A-1-284.
(See Japanese Patent Publication No. 509)

【0003】[0003]

【発明が解決しようとする課題】実開昭60−1019
8号公報に示す粉末原料の流動焼成炉にあっては、ノズ
ルが分散板全域にわたって均一になるよう配置されてい
る。このような分散板の構成は造粒炉にも適応されてお
り、そのため造粒炉の層温度は均一となっている。その
結果図8,図9で示すように、造粒炉層内部分の壁面に
コーチングが発生しやすい。即ち、図9から明らかなよ
うに、最外周のノズル径のジェット径がノズルピッチよ
り小さいことが原因であり、図のようにコーチングが発
生する。また、造粒炉にて一旦大径粒子が生成される
と、造粒炉から排出できずに分散板上に堆積し、流動化
に異常が発生し、長期安定運転に支障をきたすという課
題がある。
[Problems to be solved by the invention]
In the fluidized-bed firing furnace for powder raw material shown in Japanese Patent No. 8, the nozzles are arranged so as to be uniform over the entire dispersion plate. Such a configuration of the dispersion plate is also applied to the granulation furnace, and therefore the bed temperature of the granulation furnace is uniform. As a result, as shown in FIGS. 8 and 9, coating is likely to occur on the wall surface inside the granulation furnace layer. That is, as is clear from FIG. 9, the cause is that the jet diameter of the outermost peripheral nozzle diameter is smaller than the nozzle pitch, and thus coaching occurs as shown in the figure. In addition, once large particles are generated in the granulation furnace, they cannot be discharged from the granulation furnace and are deposited on the dispersion plate, causing abnormal fluidization, which hinders long-term stable operation. is there.

【0004】また、造粒炉とは異るが特開平1−254
242号公報に示す流動層反応装置のように、外周部で
上昇し中心部で下降する粒子循環流を形成するために、
外周部のノズル開口率を大きくしている。しかしながら
造粒炉による造粒のためには、炉構造の外周部がコーン
状で粒子の移動層下降流が必要であって、ある程度の下
降速度を確保するには、外周部ノズルの開口率は中心部
と同じか、あるいは、それ以下とする必要がある。
Further, although different from the granulating furnace, it is disclosed in Japanese Patent Laid-Open No. 1-254.
As in the fluidized bed reactor shown in Japanese Patent No. 242, in order to form a particle circulation flow that rises at the outer peripheral portion and descends at the central portion,
The nozzle opening ratio of the outer peripheral portion is increased. However, for granulation by the granulation furnace, the outer peripheral part of the furnace structure is cone-shaped and a moving bed descending flow of particles is required, and in order to secure a certain descending speed, the aperture ratio of the outer peripheral nozzle is It must be equal to or less than the center.

【0005】前記特開平1−284509号公報に示さ
れるガス分散板は、流動層全体の粒子が渦流となるよう
各ノズル上にガスが一方向から吹き出すキャップを設け
ている。このような手段では、噴流ガスのジェット長さ
は数100mmなので、分散板直上面は粒子の渦流により
付着防止は可能であるが、側壁面への付着は防止できな
い。
The gas dispersion plate disclosed in the above-mentioned Japanese Patent Laid-Open No. 1-284509 is provided with a cap that blows out gas from one direction on each nozzle so that particles in the entire fluidized bed form a vortex. With such a means, since the jet length of the jet gas is several hundreds mm, the particles can be prevented from adhering to the surface directly above the dispersion plate by the vortex flow of particles, but cannot be prevented from adhering to the side wall surface.

【0006】本発明の目的は、簡単な手段により造粒炉
層内壁面へのコーチング発生を防止し、造粒効率の向
上、大径粒子の排出処理を合理的に行うことにある。
An object of the present invention is to prevent the occurrence of coating on the inner wall surface of the granulating furnace layer by a simple means, improve the granulating efficiency, and rationally perform the discharging process of large-diameter particles.

【0007】[0007]

【課題を解決するための手段】従来技術の課題を解決す
る本発明の構成は、造粒炉の多孔板型分散板に形成した
最外周のノズル径を中央部のノズル径より小径とし、最
外周ノズルのジェット径をノズルピッチより大きくした
ものであり、また、造粒炉の多孔板型分散板の中央部に
大径ノズルを、周辺部に複数の小径ノズルを形成し、前
記大径ノズル近傍に燃料吹き込みノズルを配設したもの
である。
The structure of the present invention which solves the problems of the prior art is such that the outermost peripheral nozzle diameter formed in the perforated plate type dispersion plate of the granulation furnace is smaller than the central nozzle diameter. The jet diameter of the outer peripheral nozzle is made larger than the nozzle pitch, and a large diameter nozzle is formed in the central portion of the perforated plate type dispersion plate of the granulation furnace, and a plurality of small diameter nozzles are formed in the peripheral portion. A fuel injection nozzle is arranged in the vicinity.

【0008】[0008]

【作用】請求項1においては、分散板外周部におけるジ
ェット径が互いに干渉してデッドゾーンがなくなり、層
内コーン部のコーチングが防止できる。分散板中心部の
ジェット長さが大になり、噴流層により近いので造粒性
も向上する。請求項2においては、分散板中心部に燃料
を吹き込み、中心部の温度をより高くすると、造粒性は
さらに向上するとともに、コーン部壁面の粒子降下速度
が大きくなり、コーチングの発生が防止できる。また、
造粒炉で生成された大径の造粒物が大径ノズルを経て焼
成炉に排出され、造粒炉において流動化異常が起らな
い。
According to the first aspect of the invention, the jet diameters in the outer peripheral portion of the dispersion plate interfere with each other to eliminate the dead zone, and the coating of the inner layer cone portion can be prevented. Since the jet length in the central part of the dispersion plate becomes large and it is closer to the spouted bed, granulation is also improved. In the second aspect, when the fuel is blown into the central portion of the dispersion plate and the temperature of the central portion is made higher, the granulating property is further improved, and the particle descent rate on the wall surface of the cone portion is increased, so that the occurrence of coating can be prevented. . Also,
The large-diameter granulated product generated in the granulation furnace is discharged to the firing furnace through the large-diameter nozzle, and no fluidization abnormality occurs in the granulation furnace.

【0009】[0009]

【実施例】次に、図面について本発明実施例の詳細を説
明する。図1は本願発明造粒炉が使用される流動床セメ
ント焼成設備の概略図、図2は造粒炉の縦断正面図、図
3は分散板の平面図、図4は分散板中心部近傍に燃料吹
き込みノズルを設けた造粒炉の縦断正面図、図5は図4
における分散板の第1実施例の平面図、図6は図4にお
ける分散板の第2実施例の平面図、図7は図4における
分散板の第3実施例の平面図である。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, details of embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a schematic view of a fluidized bed cement burning facility in which the granulating furnace of the present invention is used, FIG. 2 is a vertical sectional front view of the granulating furnace, FIG. 3 is a plan view of a dispersion plate, and FIG. FIG. 4 is a vertical sectional front view of a granulation furnace provided with a fuel injection nozzle.
6 is a plan view of a first embodiment of the dispersion plate in FIG. 6, FIG. 6 is a plan view of a second embodiment of the dispersion plate in FIG. 4, and FIG. 7 is a plan view of a third embodiment of the dispersion plate in FIG.

【0010】図1について装置の全体系統を説明する
と、1はサスペンションプレヒータで、該サスペンショ
ンプレヒータ1は、サイクロンC1,C2,C3によって
構成されている。原料投入シュート2から系内に投入さ
れたセメント原料粉は、サイクロンC3→C2→C1を経
て予熱されたのち流動層型式の造粒炉3内に投入され
る。造粒炉3内で流動整粒された造粒物は、オーバーフ
ロー排出孔から排出され排出シュート4からLバルブ
(気密排出装置)5を経て流動層焼成炉6に投入せしめ
られ、焼成炉6において焼成せしめられたのち、流動床
クーラ7,移動床クーラ8を経てセメントクリンカとし
て回収される。図中9は微粉炭燃料供給ライン,10は
重油バーナである。
The entire system of the apparatus will be described with reference to FIG. 1. 1 is a suspension preheater, and the suspension preheater 1 is composed of cyclones C 1 , C 2 and C 3 . The cement raw material powder fed into the system from the raw material feeding chute 2 is preheated through a cyclone C 3 → C 2 → C 1 and then fed into a fluidized bed type granulating furnace 3. The granulated material that has been fluidized and granulated in the granulating furnace 3 is discharged from the overflow discharge hole, and is introduced into the fluidized bed calcining furnace 6 from the discharging chute 4 through the L valve (airtight discharging device) 5, and in the calcining furnace 6. After being fired, it is recovered as cement clinker through the fluidized bed cooler 7 and the moving bed cooler 8. In the figure, 9 is a pulverized coal fuel supply line, and 10 is a heavy oil burner.

【0011】次に図2,図3について請求項1に対応す
る噴流流動層造粒炉3について説明する。前記造粒炉3
に形成されたスロート部11の上部に、上面が造粒炉3
のコーン部3aの下端部近傍に対応する多孔板型の分散
板12を配設する。そして、該分散板12の中央部に複
数の大径ノズル12aを形成するとともに、外周部に多
数の小径ノズル12bを設け、最外周の小径ノズル12
bのジェット径djをノズルピッチより大きく形成した
ものである。分散板中心部のノズルは少数,大径程、大
径造粒物の流動層焼成炉への排出が円滑に行われ、流動
化の異常発生を防止し長期安定運転が可能であり、分散
板の強度上も向上されるように構成したものである。
Next, a jet fluidized bed granulation furnace 3 corresponding to claim 1 will be described with reference to FIGS. The granulating furnace 3
The upper surface of the throat portion 11 formed on the
A perforated plate type dispersion plate 12 corresponding to the vicinity of the lower end of the cone portion 3a is disposed. A plurality of large-diameter nozzles 12a are formed in the central portion of the dispersion plate 12, and a large number of small-diameter nozzles 12b are provided in the outer peripheral portion, so that the outermost peripheral small-diameter nozzle 12 is provided.
The jet diameter dj of b is formed larger than the nozzle pitch. The number of nozzles in the center of the dispersion plate is small, the diameter is large, and the large-diameter granules are smoothly discharged to the fluidized bed firing furnace, which prevents abnormal occurrence of fluidization and enables stable operation for a long time. Is also configured to be improved in strength.

【0012】次に、図4〜図7について請求項2に対応
する噴流流動層造粒炉3について説明する。図4,図5
は分散板12の中心部に1個の大径ノズル12aを形成
し、小径ノズル12bを均一に分散形成するとともに、
前記大径ノズル12aの近傍に燃料吹き込みノズル(バ
ーナ)13を配設したものである。また、図6に示す実
施例は、分散板12の中央部に複数の大径ノズル12a
を設け、外周に適当ピッチごとに小径ノズル12bを形
成し、中心の大径ノズル12aの近傍に燃料吹き込みノ
ズル(バーナ)13を配設したものである。図7の実施
例は、分散板12の中央部に複数の大径ノズル12aを
設け、小径ノズル12bを均一に分散形するとともに、
中心の大径ノズル12aの近傍に燃料吹き込みノズル
(バーナ)13を配設したものである。
Next, the jet fluidized bed granulation furnace 3 corresponding to claim 2 will be described with reference to FIGS. 4 and 5
Forms one large diameter nozzle 12a at the center of the dispersion plate 12 and forms small diameter nozzles 12b uniformly and
A fuel injection nozzle (burner) 13 is arranged near the large diameter nozzle 12a. Further, in the embodiment shown in FIG. 6, a plurality of large-diameter nozzles 12a are provided at the center of the dispersion plate 12.
, Small-diameter nozzles 12b are formed on the outer periphery at appropriate pitches, and a fuel injection nozzle (burner) 13 is arranged near the central large-diameter nozzle 12a. In the embodiment of FIG. 7, a plurality of large-diameter nozzles 12a are provided in the central portion of the dispersion plate 12, and small-diameter nozzles 12b are uniformly dispersed.
A fuel injection nozzle (burner) 13 is arranged near the central large-diameter nozzle 12a.

【0013】[0013]

【作用の説明】造粒炉分散板12の中央部に大径ノズル
12aを配置し、小径ノズル12bを周辺部に配置する
ことにより、層内粒子の挙動は次のようになる。 (a)周辺部の小径ノズル12bからの流動化ガス量よ
り、大径ノズル12aからの流動化ガス量が多い。その
結果、造粒炉3の中央部での粒子上昇エネルギーが炉周
辺部より大きく、従って、中央部の粒子は大径ノズル1
2aから流動化ガスによって上昇流を形成し、周辺部の
粒子は下降流を形成する層内粒子循環流を形成する。 (b)燃料吹き込みノズルを大径ノズル12aの近傍に
設置すると、層内中央部の温度が高く、周辺部の温度が
低くなるような温度分布が層内に形成され、その結果、
造粒の場が炉中央部に限定され、壁面へのコーチングが
防止できる。 (c)分散板12の中央部に設置した大径ノズル12a
は、造粒炉3で生成された大径の造粒物を焼成炉6に排
出させ、造粒炉3における流動化異常発生を防止する。
[Description of Action] By arranging the large-diameter nozzle 12a in the central part of the granulating furnace dispersion plate 12 and arranging the small-diameter nozzle 12b in the peripheral part, the behavior of in-layer particles becomes as follows. (A) The fluidizing gas amount from the large diameter nozzle 12a is larger than the fluidizing gas amount from the small diameter nozzle 12b in the peripheral portion. As a result, the particle rising energy in the central part of the granulation furnace 3 is larger than that in the peripheral part of the furnace, and therefore the particles in the central part are larger in diameter than the large diameter nozzle
An upward flow is formed by the fluidizing gas from 2a, and the particles in the peripheral portion form an intra-layer particle circulation flow forming a downward flow. (B) When the fuel injection nozzle is installed in the vicinity of the large-diameter nozzle 12a, a temperature distribution is formed in the layer such that the temperature in the center of the layer is high and the temperature of the peripheral portion is low.
The granulation site is limited to the central part of the furnace, and the coating on the wall surface can be prevented. (C) Large diameter nozzle 12a installed in the center of the dispersion plate 12
Discharges the large-diameter granules generated in the granulation furnace 3 to the firing furnace 6 to prevent fluidization abnormality from occurring in the granulation furnace 3.

【0014】[0014]

【発明の効果】上述のように本発明の構成によれば、次
のような効果が得られる。 (a)分散板最外周に配置したノズルのジェット径を、
ノズルピッチより大きく形成したことにより、分散板外
周部のデッドゾーンがなくなり、層内コーン部のコーチ
ング発生,付着が合理的に防止しうる。(請求項1) (b)分散板中央部に大径ノズルを配置し、周辺部に小
径ノズルを配置したことにより、層内粒子は大径ノズル
から流動化ガスによって上昇流を形成し、周辺部の粒子
は下降流となる層内粒子循環流を形成し、層内コーン部
におけるコーチングの発生,付着が防止しうる。(請求
項1,請求項2) (c)大径ノズルが配置してあるため、造粒炉で生成さ
れた大径の造粒物が大径ノズルを経由して焼成炉に排出
され、造粒炉における流動化の異常発生が合理的に防止
でき、長期安定運転の向上が図れる。(請求項1,請求
項2) (d)分散板中央部に配置した大径ノズルの近傍に、燃
料吹き込みノズルを設置したことにより、層内中央部の
温度が高く、周辺部の温度が低くなるような温度分布を
層内に形成することができ、その結果、造粒の場が炉中
央部に限定され、層内コーン部へのコーチングが防止で
きる。(請求項2)
As described above, according to the structure of the present invention, the following effects can be obtained. (A) The jet diameter of the nozzle arranged on the outermost periphery of the dispersion plate is
By forming it larger than the nozzle pitch, the dead zone on the outer peripheral portion of the dispersion plate is eliminated, and it is possible to rationally prevent the occurrence and adhesion of coating on the inner cone portion. (Claim 1) (b) A large-diameter nozzle is arranged in the central part of the dispersion plate, and a small-diameter nozzle is arranged in the peripheral part, whereby the in-layer particles form an upward flow by the fluidizing gas from the large-diameter nozzle, Partial particles form an in-layer particle circulation flow that is a downward flow, and the occurrence and adhesion of coating at the in-layer cone part can be prevented. (Claims 1 and 2) (c) Since the large-diameter nozzle is arranged, the large-diameter granules produced in the granulation furnace are discharged to the firing furnace via the large-diameter nozzle, Abnormal occurrence of fluidization in the granulator can be reasonably prevented, and long-term stable operation can be improved. (Claims 1 and 2) (d) Since the fuel injection nozzle is installed in the vicinity of the large-diameter nozzle arranged in the center of the dispersion plate, the temperature in the center of the layer is high and the temperature in the periphery is low. Such a temperature distribution can be formed in the bed, and as a result, the granulation field is limited to the central part of the furnace, and coating to the in-layer cone part can be prevented. (Claim 2)

【図面の簡単な説明】[Brief description of drawings]

【図1】本願発明造粒炉が使用される流動床セメント焼
成設備の概略図である。
FIG. 1 is a schematic view of a fluidized bed cement burning facility in which a granulating furnace of the present invention is used.

【図2】造粒炉の縦断正面図である。FIG. 2 is a vertical sectional front view of a granulating furnace.

【図3】分散板の平面図である。FIG. 3 is a plan view of a dispersion plate.

【図4】分散板中心部近傍に燃料吹き込みノズルを設け
た造粒炉の縦断正面図である。
FIG. 4 is a vertical cross-sectional front view of a granulation furnace in which a fuel injection nozzle is provided near the center of a dispersion plate.

【図5】図4における分散板の第1実施例の平面図であ
る。
5 is a plan view of a first embodiment of the dispersion plate in FIG.

【図6】図4における分散板の第2実施例の平面図であ
る。
FIG. 6 is a plan view of a second embodiment of the dispersion plate in FIG.

【図7】図4における分散板の第3実施例の平面図であ
る。
FIG. 7 is a plan view of a third embodiment of the dispersion plate in FIG.

【図8】従来造粒炉の縦断正面図である。FIG. 8 is a vertical sectional front view of a conventional granulating furnace.

【図9】従来造粒炉の分散板平面図である。FIG. 9 is a plan view of a dispersion plate of a conventional granulation furnace.

【符号の説明】[Explanation of symbols]

3 造粒炉 3a コーン部 11 スロート部 12 分散板 12a 大径ノズル 12b 小径ノズル 13 燃料吹き込みノズル 3 Granulator 3a Cone part 11 Throat part 12 Dispersion plate 12a Large diameter nozzle 12b Small diameter nozzle 13 Fuel injection nozzle

───────────────────────────────────────────────────── フロントページの続き (72)発明者 石鉢 俊幸 東京都千代田区神田美土代町1番地 住友 セメント株式会社内 (72)発明者 橋本 勲 兵庫県明石市川崎町1番1号 川崎重工業 株式会社 明石工場内 (72)発明者 村尾 三樹雄 兵庫県神戸市中央区東川崎町3丁目1番1 号 川崎重工業株式会社 神戸工場内 (72)発明者 熊谷 親徳 兵庫県明石市川崎町1番1号 川崎重工業 株式会社 明石工場内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Toshiyuki Ishibachi No. 1 Kanda Midoshiro-cho, Chiyoda-ku, Tokyo Sumitomo Cement Co., Ltd. (72) Inventor Isao Hashimoto 1-1 Kawasaki-cho, Akashi-shi, Hyogo Kawasaki Heavy Industries Inside the Akashi Plant (72) Inventor Mikio Murao 3-1-1 Higashikawasaki-cho, Chuo-ku, Kobe City, Hyogo Prefecture Kawasaki Heavy Industries Ltd. Inside the Kobe Plant (72) Inventor Chikunori Kumagai 1-1 Kawasaki-cho, Akashi City, Hyogo Prefecture Kawasaki Heavy Industries Ltd. Akashi Factory

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 造粒炉の多孔板型分散板に形成した最外
周のノズル径を中央部のノズル径より小径とし、最外周
ノズルのジェット径をノズルピッチより大きくしたこと
を特徴とする噴流流動層造粒炉。
1. A jet flow characterized in that the outermost peripheral nozzle diameter formed in a perforated plate type dispersion plate of a granulating furnace is smaller than the central nozzle diameter, and the outermost peripheral nozzle has a jet diameter larger than the nozzle pitch. Fluidized bed granulation furnace.
【請求項2】 造粒炉の多孔板型分散板の中央部に大径
ノズルを、周辺部に複数の小径ノズルを形成し、前記大
径ノズル近傍に燃料吹き込みノズルを配設したことを特
徴とする噴流流動層造粒炉。
2. A large-diameter nozzle is formed in a central portion of a perforated plate type dispersion plate of a granulating furnace, a plurality of small-diameter nozzles are formed in a peripheral portion, and a fuel injection nozzle is arranged in the vicinity of the large-diameter nozzle. And a jet fluidized bed granulator.
JP36048992A 1992-12-28 1992-12-28 Jet fluidized bed granulator Expired - Lifetime JPH0733266B2 (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
JP36048992A JPH0733266B2 (en) 1992-12-28 1992-12-28 Jet fluidized bed granulator
TW082110601A TW290530B (en) 1992-12-28 1993-12-14
DK93120421T DK0605832T3 (en) 1992-12-28 1993-12-17 Apparatus for making cement clinker
EP93120421A EP0605832B1 (en) 1992-12-28 1993-12-17 Apparatus for manufacturing cement clinker
DE69330940T DE69330940T2 (en) 1992-12-28 1993-12-17 Apparatus for the production of cement clinker
US08/174,693 US5478234A (en) 1992-12-28 1993-12-27 Apparatus for manufacturing cement clinker
CN93119976A CN1055755C (en) 1992-12-28 1993-12-28 Apparatus for manufacturing cement clinker
KR1019930030196A KR970001243B1 (en) 1992-12-28 1993-12-28 Cement Clinker Manufacturing Equipment
US08/469,198 US5944513A (en) 1992-12-28 1995-06-06 Apparatus for manufacturing cement clinker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP36048992A JPH0733266B2 (en) 1992-12-28 1992-12-28 Jet fluidized bed granulator

Publications (2)

Publication Number Publication Date
JPH06198159A JPH06198159A (en) 1994-07-19
JPH0733266B2 true JPH0733266B2 (en) 1995-04-12

Family

ID=18469621

Family Applications (1)

Application Number Title Priority Date Filing Date
JP36048992A Expired - Lifetime JPH0733266B2 (en) 1992-12-28 1992-12-28 Jet fluidized bed granulator

Country Status (1)

Country Link
JP (1) JPH0733266B2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5322454B2 (en) * 2008-02-12 2013-10-23 ホソカワミクロン株式会社 Spouted bed granulator
CN102534127A (en) * 2011-12-30 2012-07-04 苏州新锐工程工具有限公司 Heat treatment charging basket for up-pushing zipper chamber furnace

Also Published As

Publication number Publication date
JPH06198159A (en) 1994-07-19

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