JPS5919908B2 - Potassium silicate fertilizer manufacturing equipment - Google Patents
Potassium silicate fertilizer manufacturing equipmentInfo
- Publication number
- JPS5919908B2 JPS5919908B2 JP7871478A JP7871478A JPS5919908B2 JP S5919908 B2 JPS5919908 B2 JP S5919908B2 JP 7871478 A JP7871478 A JP 7871478A JP 7871478 A JP7871478 A JP 7871478A JP S5919908 B2 JPS5919908 B2 JP S5919908B2
- Authority
- JP
- Japan
- Prior art keywords
- powder
- perforated plate
- potassium silicate
- fly ash
- silicate fertilizer
- 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
Links
Landscapes
- Fertilizers (AREA)
Description
【発明の詳細な説明】 本発明は珪酸カリ肥料の製造装置に関する。[Detailed description of the invention] The present invention relates to an apparatus for producing potassium silicate fertilizer.
火力発電所等の微粉炭燃焼炉から発生する廃ガス、すな
わちフライアッシュ中には多量の珪素を含み、このフラ
イアッシュに苛性カリ、炭酸カリ等のカリ源を混合して
焼成炉で６００〜１０００℃で焼成するとカリとフライ
アッシュ中の珪素とが反応してクエン酸溶解性のカリに
変わる。Waste gas generated from pulverized coal combustion furnaces such as thermal power plants, that is, fly ash, contains a large amount of silicon.The fly ash is mixed with potassium sources such as caustic potash and potassium carbonate, and heated to 600 to 1000°C in a kiln. When fired, the potash reacts with the silicon in the fly ash and turns into citric acid-soluble potash.
ところで、フライアッシュは周知のようにその大きさは
ミクロン単位のものであり、そのままで焼成すると熱風
により飛散してしまい処理できない。By the way, as is well known, the size of fly ash is on the order of microns, and if it is fired as is, it will be scattered by hot air and cannot be treated.
そこで本発明者らはフライアッシュ、カリ源にアルコー
ル廃液などの液体バインダーを混ぜて混練し、それを２
〜３ｍｍの粒状物に造粒して焼成することを提案した。Therefore, the present inventors mixed and kneaded a liquid binder such as alcohol waste liquid with fly ash and a potassium source, and
It was proposed to granulate the material into granules of ~3 mm and then sinter it.
この方法によれば流動焼成炉を使用することができ、効
率よく処理することができる。According to this method, a fluidized sintering furnace can be used and the process can be carried out efficiently.
しかしながら、この方法による場合には造粒工程を経ね
ばならず、それだけコストがかさむ欠点がある。However, this method requires a granulation step, which increases the cost.
そこで、本発明者らは鋭意研究の結果、焼成炉としてセ
ラミック目皿を使用し、セラミック目皿上に粉体混合機
で混合した粉体原料を供給し、セラミック目皿の下方か
ら上方へ向って熱風を供給することによりミクロン単位
のフライアッシュであっても造粒することなく熱処理し
得ることを見出した。Therefore, as a result of intensive research, the inventors of the present invention used a ceramic perforated plate as a firing furnace, supplied powder raw materials mixed with a powder mixer onto the ceramic perforated plate, and moved the ceramic perforated plate from the bottom to the top. We have discovered that even micron-sized fly ash can be heat-treated without granulation by supplying hot air.
以下、図面を参照して本発明にかかる珪酸カリ肥料の製
造装置の一実施例を説明する。EMBODIMENT OF THE INVENTION Hereinafter, one embodiment of the apparatus for producing potassium silicate fertilizer according to the present invention will be described with reference to the drawings.
図において１は粉体混合機で、図示されていない定量装
置で定量したフライアッシュ、カリ源、その他珪酸カリ
肥料を製造するに必要な粉体原料を入れ混合し、ロータ
リーフィーダー２、スクリューコンベヤー３を経て焼成
炉４に供給する。In the figure, 1 is a powder mixer, in which fly ash, potassium source, and other powder raw materials necessary for producing potassium silicate fertilizer are put in and mixed, which is determined by a quantitative device (not shown), and is then transferred to a rotary feeder 2 and a screw conveyor 3. Then, it is supplied to the firing furnace 4.
焼成炉４はセラミック目皿５を有しており、焼成されつ
つ原料が上流より下流へと流れるように上流から下流に
向って下り勾配に設けられている。The firing furnace 4 has a ceramic perforated plate 5, and is provided with a downward slope from upstream to downstream so that the raw material flows from upstream to downstream while being fired.
セラミック目皿５上に粉体混合機１で混合した粉体原料
が供給され、一方セラミック目皿５の下方から上方に向
って６００〜１０００℃の熱風が供給され、セラミック
目皿５上の粉体原料はこの熱風によって焼成され、カリ
とフライアッシュ中の珪素とが化学反応してクエン酸溶
解性のカリに変わり、製品タンク１０へと流れる。Powder raw materials mixed by the powder mixer 1 are supplied onto the ceramic perforated plate 5, and hot air of 600 to 1000°C is supplied upward from the bottom of the ceramic perforated plate 5 to mix the powder on the ceramic perforated plate 5. The body raw material is fired by this hot air, and the potash and silicon in the fly ash undergo a chemical reaction to turn into citric acid-soluble potash, which flows into the product tank 10.
この際、フライアッシュはミクロン単位の粉体であるが
セラミツり目皿を使用していることと熱風がセラミック
目皿の下方から上方に向って流れていることよりしてフ
ライアッシュがセラミック目皿を通って下方に落下する
ことがない。At this time, fly ash is a powder of micron size, but since the ceramic perforated plate is used and the hot air flows from the bottom to the top of the ceramic perforated plate, the fly ash is a powder in the ceramic perforated plate. It will not fall downward through.
またフライアッシュが熱風により外部に飛散しないよう
に焼成炉４はセラミック目皿５を被うケーシング６を備
えている。Further, the firing furnace 4 is provided with a casing 6 that covers a ceramic perforated plate 5 so that fly ash is not scattered outside by hot air.
ケーシング６の材質、構造は特に限定されるものではな
く、例えば窯業におけるトンネル釜と同様に耐火レンガ
で覆ってもよく、また焼成温度は６００〜１０００℃程
度であるので鋼板で覆ってその外側を断熱材、例えば石
綿で覆うようにすればよい。The material and structure of the casing 6 are not particularly limited. For example, the casing 6 may be covered with refractory bricks like tunnel kettles in the ceramics industry. Also, since the firing temperature is about 600 to 1000°C, the outside may be covered with a steel plate. It can be covered with an insulating material, such as asbestos.
焼成炉４へ熱風を供給するための熱風発生炉７が設けら
れており、管路８を通って図示されていない燃料タンク
から同様に図示されていない燃料ポンプによりオイルが
供給されると共に、管路９を通って高圧空気が供給され
る。A hot air generating furnace 7 for supplying hot air to the firing furnace 4 is provided, and oil is supplied from a fuel tank (not shown) through a pipe 8 by a fuel pump (also not shown), and High pressure air is supplied through line 9.
製品タンク１０内の製品はロータリーフィダー１１より
外部に排出されて、例えば急冷装置により冷却された後
包装され、あるいは必要に応じて水なとの水溶性バイン
ダーを加えて造粒、乾燥した後包装する。The product in the product tank 10 is discharged to the outside from the rotary feeder 11, and is packaged after being cooled, for example, by a quenching device, or, if necessary, is granulated by adding a water-soluble binder such as water, dried, and then packaged. do.
製品タンク１０の放出熱は熱交換器１２で回収して再利
用すると共に、製品タンク１０からの浮遊塵をバグフィ
ルタ−１３で回収してスクリューコンベヤー１４を経て
製品として回収する。The heat released from the product tank 10 is recovered and reused by a heat exchanger 12, and floating dust from the product tank 10 is recovered by a bag filter 13 and passed through a screw conveyor 14 to be recovered as a product.
またバグフィルタ−１３には排気ファン１５が設けられ
ていて排気を排気管１６を経て大気に放出する。Further, the bag filter 13 is provided with an exhaust fan 15 to discharge exhaust gas to the atmosphere through an exhaust pipe 16.
以上説明したように本発明にかかる珪酸カリ肥料の製造
装置では、焼成炉にセラミック目皿を使用しているため
、フライアッシュその他の粉体原料を造粒することなく
そのまま焼成することができ、したがってそれだけコス
ト安の製品を得ることができるものである。As explained above, in the potassium silicate fertilizer manufacturing apparatus according to the present invention, since a ceramic perforated plate is used in the firing furnace, fly ash and other powder raw materials can be fired as they are without being granulated. This makes it possible to obtain products at lower costs.
図面は本発明の珪酸カリ肥料の製造装置を示す系統図で
ある。
１・・・・・・粉体混合機、２，１１・・・・・・ロー
タリーフィダー、３，１４・・・・・・スクリューコン
ベヤー、４・・・・・・焼成炉、５・・・・・・セラミ
ック目皿、６・・・・・・ケーシング、７・・・・・・
熱風発生炉、８・・・・・・燃料管路、９・・・・・・
高圧空気管路、１０・・・・・・製品タンク、１２・・
・・・・熱交換器、１３・・・・・・バグフィルタ−１
１５・・・・・・排気ファン、１６・・・・・・排気管
。The drawing is a system diagram showing an apparatus for producing potassium silicate fertilizer of the present invention. 1... Powder mixer, 2, 11... Rotary feeder, 3, 14... Screw conveyor, 4... Calcining furnace, 5... ...Ceramic eye plate, 6...Casing, 7...
Hot air generating furnace, 8...Fuel pipe line, 9...
High pressure air pipe line, 10...Product tank, 12...
... Heat exchanger, 13 ... Bag filter -1
15...exhaust fan, 16...exhaust pipe.
Claims (1)
源、その他珪酸カリ肥料を製造するに必要な粉体原料を
混合する粉体混合機、その粉体混合機で混合した粉体原
料を焼成してカリとフライアッシュ中の珪素とを化学反
応させる焼成炉とを包含し、その焼成炉は、セラミック
目皿を有していてセラミック目皿上に粉体混合機で混合
した粉体原料が供給され、またセラミック目皿の下方か
ら上方へ向って熱風が供給されるようになっており、そ
して熱風により焼成する際に粉体原料が外部へ飛散しな
いようにケーシングで被われていることを特徴とする珪
酸カリ肥料の製造装置。1. A powder mixer that mixes fly ash produced when pulverized coal is burned, a potash source, and other powder raw materials necessary for producing potassium silicate fertilizer, and a powder mixer that mixes the powder raw materials mixed in the powder mixer to produce potassium. and a firing furnace for chemically reacting silicon in the fly ash, the firing furnace has a ceramic perforated plate, and a powder raw material mixed by a powder mixer is supplied onto the ceramic perforated plate, In addition, hot air is supplied from the bottom to the top of the ceramic perforated plate, and the ceramic plate is covered with a casing to prevent the powder raw material from scattering to the outside during firing with the hot air. Production equipment for potassium silicate fertilizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7871478A JPS5919908B2 (en) | 1978-06-30 | 1978-06-30 | Potassium silicate fertilizer manufacturing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7871478A JPS5919908B2 (en) | 1978-06-30 | 1978-06-30 | Potassium silicate fertilizer manufacturing equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS557536A JPS557536A (en) | 1980-01-19 |
| JPS5919908B2 true JPS5919908B2 (en) | 1984-05-09 |
Family
ID=13669530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7871478A Expired JPS5919908B2 (en) | 1978-06-30 | 1978-06-30 | Potassium silicate fertilizer manufacturing equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5919908B2 (en) |
-
1978
- 1978-06-30 JP JP7871478A patent/JPS5919908B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS557536A (en) | 1980-01-19 |
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