JPS58196841A - Fluidized roasting apparatus - Google Patents
Fluidized roasting apparatusInfo
- Publication number
- JPS58196841A JPS58196841A JP58047910A JP4791083A JPS58196841A JP S58196841 A JPS58196841 A JP S58196841A JP 58047910 A JP58047910 A JP 58047910A JP 4791083 A JP4791083 A JP 4791083A JP S58196841 A JPS58196841 A JP S58196841A
- Authority
- JP
- Japan
- Prior art keywords
- fluidized
- stock material
- duct
- roasting
- exhaust gas
- 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
- JTJMJGYZQZDUJJ-UHFFFAOYSA-N phencyclidine Chemical class C1CCCCN1C1(C=2C=CC=CC=2)CCCCC1 JTJMJGYZQZDUJJ-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000000725 suspension Substances 0.000 claims abstract description 6
- 239000002994 raw material Substances 0.000 claims description 23
- 239000000428 dust Substances 0.000 claims description 9
- 239000000446 fuel Substances 0.000 abstract description 7
- 238000001354 calcination Methods 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract 6
- MXRIRQGCELJRSN-UHFFFAOYSA-N O.O.O.[Al] Chemical compound O.O.O.[Al] MXRIRQGCELJRSN-UHFFFAOYSA-N 0.000 abstract 1
- 238000001816 cooling Methods 0.000 description 11
- 239000000843 powder Substances 0.000 description 5
- 238000005273 aeration Methods 0.000 description 2
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 101100460146 Arabidopsis thaliana NEET gene Proteins 0.000 description 1
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J6/00—Heat treatments such as Calcining; Fusing ; Pyrolysis
- B01J6/001—Calcining
- B01J6/004—Calcining using hot gas streams in which the material is moved
Landscapes
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Crucibles And Fluidized-Bed Furnaces (AREA)
Abstract
Description
【発明の詳細な説明】
本発明（は、流動焙焼装置に関するもので、とくに、水
酸化アルミニウムを焙焼してアノ【ミナにする・焙焼装
置として好適なものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a fluidized roasting apparatus, and is particularly suitable for use as a roasting apparatus for roasting aluminum hydroxide into anomol.
従来のこの種の装置としては、ロータリキルン方式が多
用されているが、ロータリキルツカ式では、広い設置面
積を必要とするほか、燃料消費が大きく、またダストの
発生が多く、しかも、直接には細粉原料を使用すること
ができないなとの欠点がある。またシャフトキルン方式
やロータリハース方式なども考えら才りるη・、いずれ
も、使用燃料の種類に制限があり、かつ、焙焼能力が小
さくて設備費が高価なものとなり、しかも細粉原料の使
用が困難であるなど、好ま、シくない。Conventionally, rotary kiln systems are often used for this type of equipment, but rotary kiln systems require a large installation area, consume large amounts of fuel, and generate a lot of dust. The disadvantage is that it cannot use fine powder raw materials. In addition, shaft kiln systems and rotary hearth systems are also considered, but both have restrictions on the type of fuel that can be used, have low roasting capacity, and require high equipment costs, as well as fine powder raw materials. I don't like it because it's difficult to use.
本発明は、焙焼能力が大きくて設備費が安価となり、か
つ、細粉原料てもすべて支障なく使用することができ、
しかも、燃料としてにカスおよび油（はもちろんのこと
、石炭なとをも使用することができ、また熱効率が良い
うえ、焙焼製品の品質も良い焙焼装置を提供することを
１−１的とするものである。The present invention has a large roasting capacity, low equipment costs, and can be used without any problems even with fine powder raw materials.
In addition, our 1-1 objective is to provide a roasting device that can use not only waste and oil (as well as coal) as fuel, has good thermal efficiency, and produces roasted products of good quality. That is.
このため、本発明の構成は、複数個のサイクロンおよび
これらサイクロンを順に接続したダクトを有して原料を
予熱するサスペンションプリヒータと、前記サイクロン
のうちの最下段サイクロンから予熱された原料を導入し
て内部に流動層を形成しながら前記予熱された原料を焙
焼する流動焙焼炉と、この流動焙焼炉で焙焼された焙焼
品を該焙焼炉の流動層付近に設けられた溢流口から導入
して流動層を形成しながら冷却して製品ｔｔｃ−ｙる流
動式冷却器と、この流動式冷却器の排気の一部を導入し
てその排気に同伴された製品を該リド気から分離させて
捕集する集じん器とを備えていることを特徴としている
。For this reason, the configuration of the present invention includes a suspension preheater that has a plurality of cyclones and a duct connecting these cyclones in order to preheat the raw material, and a suspension preheater that preheats the raw material, and introduces the preheated raw material from the lowest cyclone among the cyclones. a fluidized roasting furnace for roasting the preheated raw materials while forming a fluidized bed inside the fluidized roasting furnace; A fluidized cooler is introduced from the overflow port to cool the product while forming a fluidized bed, and a part of the exhaust gas from this fluidized cooler is introduced to collect the product entrained in the exhaust gas. It is characterized by being equipped with a dust collector that separates it from lid air and collects it.
以■５、本発明の一実施例について、図面を参照しなが
ら説明する。Hereinafter, one embodiment of the present invention will be described with reference to the drawings.
図において、１はサスペ／７ヨ／シリヒータ、２は流動
焙焼炉、５は（Ｍ、’動式冷却器、４は集じん器である
。In the figure, 1 is a suspension/7yo/siliheater, 2 is a fluidized roasting furnace, 5 is (M,' dynamic cooler, and 4 is a dust collector.
Ｒ’Ｊ Ｑｂサスペノ／ヨ／プリヒータ１は、サイクＵ
Ｊ７５，６，７．８および仮焼炉９と、各サイクロンを
順眞接続したグク１−ｉｏ、１１．１２と、各サイクロ
ンの下のシュート１３，１４゜１５．１６などで構成さ
れ、捷た仮焼炉９の出口と最下段サイクロン８の人口と
はタクト１７で接続され、サイクロン７の原料出口と仮
焼炉９の原料入口とはシュート１５で接続されており、
仮焼炉９には仮焼バーナ１８を有している。R'J Qb Suspeno/Yo/Preheater 1 is Cycl U
It consists of J75, 6, 7.8 and calcining furnace 9, Guku 1-io, 11.12 which connected each cyclone in order, chute 13, 14° 15.16 under each cyclone, etc. The outlet of the calciner 9 and the lowermost cyclone 8 are connected by a tact 17, and the raw material outlet of the cyclone 7 and the raw material inlet of the calciner 9 are connected by a chute 15.
The calcining furnace 9 has a calcining burner 18.
前記流動焙焼炉２は、下部に風箱１９を、この上部に散
気様２０を、さらにこの上部に・焙焼バーナ２１を有し
ている。また２２は流動層、２５はツリーボートである
。そして／ニート１６からの該焙焼炉２の供給口は、散
気＆２０よりも上位にして流動層２２の底部に同いてお
り、しかも、多数の噴孔を有して該／ニート１６の前記
供給口内に挿入されており、送風機２４からの少量の圧
力空気が流動層２２の底部て供給されるよう□になって
いる。葦た流動層２２の上部句近に設けられた溢流口２
５に／−コ−１，２６が設けられている。The fluidized roasting furnace 2 has a wind box 19 at the bottom, an aeration box 20 at the top, and a roasting burner 21 at the top. Further, 22 is a fluidized bed, and 25 is a tree boat. The supply port of the torrefaction furnace 2 from the /NEET 16 is located above the aeration &20 and is at the bottom of the fluidized bed 22, and has a large number of nozzle holes. It is inserted into the supply port and is shaped square so that a small amount of pressurized air from the blower 24 is supplied to the bottom of the fluidized bed 22. Overflow port 2 provided near the upper part of the reed fluidized bed 22
5 is provided with /-co-1,26.
前記流動式冷却器５は、−次冷却部２７と二次冷却部２
８とからなり、いずれも、下部に風箱２９を、この上部
に空気噴出ノズルとしての機能を有する多孔版５０を備
えており、送風機３１から供給される圧力空気により、
多孔板６０の上部に流動層を形成するようになっている
。なお５２は製品出口に接続されたシュートである。The fluidized cooler 5 includes a secondary cooling section 27 and a secondary cooling section 2.
8, each of which is equipped with a wind box 29 at the bottom and a perforated plate 50 which functions as an air jet nozzle at the top.
A fluidized bed is formed above the perforated plate 60. Note that 52 is a chute connected to the product outlet.
セして、３３は前記−次冷却部２７と仮焼炉９の下部渦
巻室とを接続した排気ダクトで、前記シュート２６の下
端がこのタクト６３の途中に接続されている。また６４
は前記二次冷却部２８と集じん器４の人口とを接続した
排気ダクト、５５は前記集じん器４の空気出口と流動焙
焼炉２の風箱１９とを接続したダクト、３６は該タクト
３５の途中に設けられた送風機、６７は主排風機、３８
は常温の粉粒体原料の供給装置、６９は前記流動焙焼炉
の排気出口と仮焼炉９の下部渦巻室とを接続した排気ダ
クトである。33 is an exhaust duct connecting the secondary cooling section 27 and the lower spiral chamber of the calciner 9, and the lower end of the chute 26 is connected to the middle of this tact 63. Also 64
55 is an exhaust duct that connects the secondary cooling section 28 and the dust collector 4, 55 is a duct that connects the air outlet of the dust collector 4 and the wind box 19 of the fluidized roasting furnace 2, and 36 is the A blower installed in the middle of the tact 35, 67 is a main exhaust fan, 38
69 is an exhaust duct connecting the exhaust outlet of the fluidized roasting furnace and the lower spiral chamber of the calcining furnace 9.
図示のように構成された流動焙焼装置においては、水酸
化アルミニウムなとの常温の粉末原料が計量されて原料
供給装置３８からダクト１０の立上り部に供給される。In the fluidized roasting apparatus configured as shown in the figure, a powder raw material such as aluminum hydroxide at room temperature is measured and supplied from the raw material supply device 38 to the rising portion of the duct 10.
一方、流動焙焼炉２の熱量をもった排気（たとえば、１
３００〜１４００℃）および仮焼炉９の熱量をもった排
気（たとえば、１０００〜１２００℃）が主排風機６７
によって吸引されて、ダクト１７−サイクロン８−ダク
ト１２→サイクロン７−ダクト１１−サイクロン６→ダ
クト１０−サイクロン５と流れている。したがって、ま
ず、タクト１０に供給された前記原料は、上向きに流れ
ている高温（たとえば、１５０〜２５０℃）の排気に浮
遊して第１段の熱交換をして予熱され、サイクロン５に
よって捕集され、シュート１６を通って、さらに高温（
たとえば、６υＤ〜４００℃）の排気が上向きに流れて
いるタクト・１１に放出され、第２段の熱交換を行なう
。同様にして数段の熱交換をした原料は、シュート１５
から仮焼炉９に供給され、ここで仮焼されてダクト１７
から最下段サイクロン８に至り、ここで予熱を終了した
原料が捕集されてシュ−ト１６から流動焙焼炉２に供給
される。つぎに、上述の予熱を終了して該焙焼炉２に入
った原料は、集じん器４で除しんされて送風機３乙によ
って風箱１９に送られてくる空気により、流動化して流
動層２２を形成する。一方において、計量された燃料が
バーナ２１に供給され、このバーナ２１から流動層２２
に噴射される燃料と流動用空気により燃焼し、この燃焼
によって原料は、焙焼される。そして、焙焼された原料
、つまり、焙焼品は、溢流口２５からシュート２６ｆ：
経てダクト６３の途中の立上り部に供給さ、れ、ここで
焙焼品はり゛クト６３を上向きに流れる二次冷却部２７
からの排気で徐冷され、そのうちの細粉焙焼品はその排
気に浮遊して仮焼炉９に戻されるが、それ以外の焙焼品
はダクト６３内を降下して流動式冷却器６の二次冷却部
２７に導入δれる。す々わち、ダクト６３はシュート２
６からの焙焼品を徐冷と分級とをする機能を有している
。また−次冷却部２７に入った焙焼品は送風機５１から
風箱２９に供給された空気により流動層を形成しながら
一次冷却され、つついて流動式冷却器６の二次冷却部２
Ｂに移行し、ここでも流動層を形成しながら二次冷却さ
れ、製品となってシュート５２から取出される。そして
二次冷却部２８の排気は送風機６６により吸引されて集
じん器４に至り、この果しん器４で除しんされて清浄な
空気となって流動焙焼炉２の風箱１？に供給される。On the other hand, the exhaust gas having a calorific value of the fluidized roasting furnace 2 (for example, 1
300 to 1400°C) and high-temperature exhaust gas (e.g. 1000 to 1200°C) from the calciner 9 is sent to the main exhaust fan 67.
It flows in the following order: duct 17 - cyclone 8 - duct 12 -> cyclone 7 - duct 11 - cyclone 6 -> duct 10 - cyclone 5. Therefore, first, the raw material supplied to the tact 10 is suspended in the upwardly flowing high-temperature (for example, 150 to 250°C) exhaust gas, undergoes a first stage of heat exchange, is preheated, and is captured by the cyclone 5. is collected and passed through the chute 16 to a higher temperature (
For example, 6υD~400°C) exhaust gas is discharged into the upwardly flowing tact 11 for second stage heat exchange. The raw material that has undergone several stages of heat exchange in the same manner is
is supplied to the calcining furnace 9, where it is calcined and passed through the duct 17.
From there, the raw material reaches the lowest stage cyclone 8, where the preheated raw material is collected and supplied to the fluidized roasting furnace 2 through a chute 16. Next, the raw material that has finished the above-mentioned preheating and entered the roasting furnace 2 is removed by a dust collector 4, and is fluidized by the air sent to the wind box 19 by the blower 3B into a fluidized bed. 22 is formed. On the one hand, metered fuel is supplied to a burner 21 from which a fluidized bed 22
The fuel injected into the tank and the fluidizing air cause combustion, and the raw material is roasted by this combustion. Then, the roasted raw material, that is, the roasted product, is transferred from the overflow port 25 to the chute 26f:
The secondary cooling section 27 is then supplied to a rising part in the middle of the duct 63, where the roasted product flows upward through the duct 63.
The fine roasted products float in the exhaust air and are returned to the calciner 9, while the other roasted products descend through the duct 63 and are sent to the fluidized cooler 6. δ is introduced into the secondary cooling section 27. Well, duct 63 is chute 2
It has the function of slowly cooling and classifying the roasted product from step 6. Further, the roasted product entering the secondary cooling section 27 is primarily cooled while forming a fluidized bed by the air supplied from the blower 51 to the wind box 29, and is then poked into the secondary cooling section 2 of the fluidized cooler 6.
The product moves to step B, where it is also subjected to secondary cooling while forming a fluidized bed, and is taken out from the chute 52 as a product. Then, the exhaust air from the secondary cooling section 28 is sucked by the blower 66 and reaches the dust collector 4, where it is removed and becomes clean air, which is then transferred to the wind box 1 of the fluidized roasting furnace 2. supplied to
上述のように、本発明によれば、原料はサスペンンヨ／
プリヒータで予熱されてから＃Ｌ動焙焼炉に供給され、
この焙焼炉ては流動層を形成しながら焙焼されるので、
焙焼能力が大きく、設備費が安価となり、かつ、細粉原
料てもすべて支障なく焙焼することができ、また燃料と
してはガスおよび油はもちろんのこと１石炭なとをも使
用することができ、しかも、熱効率も良い。また焙焼炉
が流動式であることと、（１１却器も流動式であること
により、すくれた品質の製品を得ることができる。As mentioned above, according to the present invention, the raw material is
After being preheated with a preheater, it is supplied to the #L dynamic roasting furnace,
This roasting furnace is roasted while forming a fluidized bed.
The roasting capacity is large, the equipment cost is low, and even fine powder raw materials can be roasted without any problems.As fuel, not only gas and oil but also coal can be used. Moreover, it has good thermal efficiency. Furthermore, because the roasting furnace is of a fluidized type and the incinerator (11) is also of a fluidized type, products of excellent quality can be obtained.
図は本発明の一実施例を示した説明図である。
１・・・サスペンショア ）ＩＪ上ヒータ２・・・流動
焙焼炉、３・・・流動式冷却器、４・・、集じん器、５
，６．７・・・サイクロン、８・・・最手段サイクロン
、１０，１１，１２゜・ ・ダクト、１６・・・シュー
ト、２２・・ ・流動層、２５・・・溢流口、２６・・
・シュート、５５．３４・・・冷却器排気ダクト。
一つThe figure is an explanatory diagram showing one embodiment of the present invention. 1... Suspension shore) IJ upper heater 2... Fluidized roasting furnace, 3... Fluidized cooler, 4... Dust collector, 5
, 6.7... Cyclone, 8... Most effective cyclone, 10, 11, 12°... Duct, 16... Chute, 22... - Fluidized bed, 25... Overflow port, 26...・
・Chute, 55.34...Cooler exhaust duct. one
Claims (1)
接続したタクトを有して原料を予熱するサスペンション
プリヒータと、前記サイクロンのうちの最下段サイクロ
ンから予熱された原料を導入して内部に流動層を形成し
なから前ａピ予熱された原料を焙焼する流動焙焼炉と、
この流動層・焼炉で焙焼された焙焼品を該焙焼炉の流動
層付近に設けられた溢滝口から導入して流動層を形成し
ながら冷却して製品にする流動式冷却器と、この流動式
冷却器の排気の一部を導入してその排気に同伴された製
品を該υト気から分離させて捕集する集じん器とを備え
ていることを特徴とする、流動焙焼装置。1 A plurality of cyclones/suspension preheater that has a tact in which these cyclones are connected in order to preheat the raw material, and a fluidized bed is formed inside by introducing the preheated raw material from the lowest cyclone among the cyclones. a fluidized roasting furnace that roasts the preheated raw material;
A fluidized cooler is used to introduce the roasted product roasted in this fluidized bed/calciner through an overflow port provided near the fluidized bed of the roasting furnace, cool it while forming a fluidized bed, and turn it into a product. and a dust collector for introducing a part of the exhaust gas from the fluidized cooler and separating and collecting the products entrained in the exhaust gas from the gas. Baking equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58047910A JPS5932175B2 (en) | 1983-03-24 | 1983-03-24 | Fluid roasting equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58047910A JPS5932175B2 (en) | 1983-03-24 | 1983-03-24 | Fluid roasting equipment |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3195476A Division JPS605873B2 (en) | 1976-03-25 | 1976-03-25 | Fluidized roasting furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58196841A true JPS58196841A (en) | 1983-11-16 |
| JPS5932175B2 JPS5932175B2 (en) | 1984-08-07 |
Family
ID=12788524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58047910A Expired JPS5932175B2 (en) | 1983-03-24 | 1983-03-24 | Fluid roasting equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5932175B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102284348A (en) * | 2011-05-27 | 2011-12-21 | 张兴华 | Mineral dressing method of producing phosphate concentrate powder by utilizing low-grade phosphate rocks |
-
1983
- 1983-03-24 JP JP58047910A patent/JPS5932175B2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102284348A (en) * | 2011-05-27 | 2011-12-21 | 张兴华 | Mineral dressing method of producing phosphate concentrate powder by utilizing low-grade phosphate rocks |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5932175B2 (en) | 1984-08-07 |
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