JP2002223800A - Method for reusing lime cake - Google Patents
Method for reusing lime cakeInfo
- Publication number
- JP2002223800A JP2002223800A JP2001025786A JP2001025786A JP2002223800A JP 2002223800 A JP2002223800 A JP 2002223800A JP 2001025786 A JP2001025786 A JP 2001025786A JP 2001025786 A JP2001025786 A JP 2001025786A JP 2002223800 A JP2002223800 A JP 2002223800A
- Authority
- JP
- Japan
- Prior art keywords
- lime
- sugar
- cake
- juice
- cao
- 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
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/40—Production or processing of lime, e.g. limestone regeneration of lime in pulp and sugar mills
Landscapes
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明はビート糖の製造工程で廃
出されるライムケーキの再利用方法に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for reusing lime cake discharged in the process of producing beet sugar.
【０００２】[0002]
【従来の技術】ビート糖の製造工程では、粗糖汁中から
不純物を除去すべく、生石灰、炭酸ガスを用いているの
で、粗糖汁中で生石灰が炭酸ガスと反応し、炭酸カルシ
ウムの沈殿（ライムケーキ）が生成する。2. Description of the Related Art In a process of producing beet sugar, quicklime and carbon dioxide gas are used to remove impurities from crude sugar juice, so that quicklime reacts with carbon dioxide gas in crude sugar juice to precipitate calcium carbonate (lime). Cake).
【０００３】このライムケーキは、原料ビートに対し１
０％程度と大量に生成するが、その利用方法としては一
部が土地改良剤として利用されるだけで、殆どが産業廃
棄物として処理されている。[0003] This lime cake is made of 1
Although it is generated in a large amount of about 0%, only part of it is used as a land conditioner and most of it is treated as industrial waste.
【０００４】ライムケーキを有効利用する為、ライムケ
ーキを造粒する方法が提案されている（特開平11−9020
3号公報、特開昭59−82937号公報）が、かかる技術は、
造粒剤を添加したり、造粒工程が面倒且つコスト高でも
ある。又、かかるライムケーキは、ビート糖の製造工程
で再循環利用する方法がなかった。[0004] In order to make effective use of lime cake, a method of granulating lime cake has been proposed (JP-A-11-9020).
No. 3, JP-A-59-82937).
The addition of a granulating agent and the granulation step are troublesome and costly. Further, there has been no method for recycling such lime cake in the process of producing beet sugar.
【０００５】[0005]
【発明が解決しようとする課題】本発明は、かかる点に
鑑みなされたもので、ライムケーキを、再度、ビート糖
の製造工程で再利用可能とし、ライムケーキを再生循環
して有効に利用できることを目的とする。SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and it is an object of the present invention to make lime cake reusable again in the process of producing beet sugar and to recycle and reuse lime cake effectively. With the goal.
【０００６】[0006]
【課題を解決するための手段】かかる目的を達成すべ
く、本発明にかかるライムケーキの再利用方法は、ビー
ト糖の製造工程で生成されるライムケーキ（ＣａＣ
Ｏ3）に、炭酸ナトリウム又は水酸化ナトリウムを添加
し脱水、造粒、焼成し、生石灰（ＣａＯ）を生成し、こ
の生石灰（ＣａＯ）をビート糖の製造工程で再利用する
ものである。In order to achieve the above object, a method for reusing lime cake according to the present invention is directed to a lime cake (CaC) produced in a process of producing beet sugar.
The O 3), was added sodium carbonate or sodium hydroxide dehydration, granulation, and calcined to produce quicklime (CaO), it is to reuse this quicklime (CaO) in the manufacturing process of beet sugar.
【０００７】[0007]
【発明の実施の形態】本発明にかかる一実施例を図1に
基づき説明するが、最初に、ビート糖の製造工程につ
き、その概略を説明する。粗糖汁１（ロージュース）は
ビートより温水にて滲出された液であり、かかる粗糖汁
１は、第１清浄設備２で処理後、第２清浄設備３で処理
され、清浄糖汁１０（シンジュース）が得られ、ビート
糖の製造工程が終了する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment according to the present invention will be described with reference to FIG. 1. First, the outline of a process for producing beet sugar will be described. The crude sugar juice 1 (raw juice) is a liquid that has been exuded from the beet with warm water. The crude sugar juice 1 is processed in the first cleaning equipment 2 and then processed in the second cleaning equipment 3 to obtain the purified sugar juice 10 (sin). Juice), and the production process of beet sugar is completed.
【０００８】第１清浄設備２及び第２清浄設備３に生石
灰４を石灰乳装置５で水６を加えてＣａＯ＋Ｈ2Ｏ→Ｃ
ａ(ＯＨ)2反応より石灰乳８を得る。The quick lime 4 is added to the first cleaning equipment 2 and the second cleaning equipment 3 with water 6 by the lime milk device 5, and CaO + H 2 O → C
Lime milk 8 is obtained from the a (OH) 2 reaction.
【０００９】この石灰乳８は、第１清浄設備２と第２清
浄設備３に必要量供給し、又、二酸化炭素ガス９も同様
に第１清浄設備２と第２清浄設備３に必要量供給され
る。The lime milk 8 is supplied to the first cleaning equipment 2 and the second cleaning equipment 3 in a required amount, and the carbon dioxide gas 9 is similarly supplied to the first cleaning equipment 2 and the second cleaning equipment 3 in the required amount. Is done.
【００１０】第１清浄設備２、第２清浄設備３で石灰乳
８は二酸化炭素ガス９と反応し、石灰泥１１と水とにな
り、この石灰泥１１は沈降分離し、攪拌機付石灰泥槽に
取り出される。In the first cleaning equipment 2 and the second cleaning equipment 3, the lime milk 8 reacts with the carbon dioxide gas 9 to form lime mud 11 and water, and this lime mud 11 is settled and separated, and the lime mud tank with a stirrer is provided. Is taken out.
【００１１】本発明にかかるライムケーキの再利用方法
は、ビート糖の製造工程で生成されるライムケーキ（Ｃ
ａＣＯ3）の再生利用を目的に、炭酸ナトリウム又は水
酸化ナトリウムを添加し脱水、造粒、焼成し、生石灰
（ＣａＯ）を生成し、この生石灰（ＣａＯ）をビート糖
の製造工程で再利用する方法であり、かかる実施の形態
としては、第１清浄設備２、第２清浄設備３の工程及び
攪拌機付石灰泥槽１２には、炭酸ナトリウム又は水酸化
ナトリウム１３を添加し、石灰焼成キルン１６内でのＣ
ａＣＯ3造粒物が破砕損傷しにくい様に、ナトリウムＮ
ａ効果を出させるようにするものである。The method for reusing lime cake according to the present invention is a method for recycling lime cake (C) produced in a process for producing beet sugar.
For the purpose of recycling aCO 3 ), sodium carbonate or sodium hydroxide is added, and dehydration, granulation, and calcination are performed to produce quicklime (CaO), and this quicklime (CaO) is reused in the process of producing beet sugar. In this embodiment, sodium carbonate or sodium hydroxide 13 is added to the steps of the first cleaning equipment 2 and the second cleaning equipment 3 and the lime mud tank 12 with a stirrer, and the lime burning kiln 16 C at
a Sodium N so that the aCO 3 granules are hardly crushed and damaged
This is to provide the a effect.
【００１２】粗糖汁１は第１清浄設備２、第２清浄設備
３で処理され、非糖分等有機物を１０％前後保有した糖
汁中の沈殿石灰化合物が生成するので、かかる沈殿石灰
化合物は脱水機１４で脱水される。The crude sugar juice 1 is treated in the first and second cleaning equipments 2 and 3, and a precipitated lime compound in the sugar juice containing about 10% of organic matter such as non-sugar is generated. It is dehydrated by the machine 14.
【００１３】得られた糖汁液は粗糖汁１（ロージュー
ス）に戻され、脱水石灰泥（ＣａＣＯ 3＋Ｎａ2ＣＯ3）
１５は水分３０％前後に脱水され石灰焼成キルン１６に
導き投入される。The obtained sugar juice is crude sugar juice 1 (Rouge)
Lime mud and dehydrated lime mud (CaCO Three+ NaTwoCOThree)
15 is dehydrated to about 30% moisture and becomes lime burning kiln 16
It is led and thrown in.
【００１４】脱水石灰泥１５は移動中に２０ｍｍ前後の
球状に凝集転動造粒されながら、粉塵飛散しにくい造粒
物がバーナー１７による１０００℃前後の熱風温度で交
流方式にて脱水石灰泥１５と接触し、ＣａＣＯ3＋Ｎａ2
ＣＯ3→ＣａＯ＋２ＣＯ2＋Ｎａ2Ｏに分解焼成される。
炭酸ナトリウムは脱水石灰泥造粒物の固結強度を高め、
１０００℃前後の高温焼成中における造粒物の破損損傷
を防止している。While the dehydrated lime mud 15 is being agglomerated and tumbled into a spherical shape of about 20 mm during the movement, the granulated material which is hard to be scattered by the dust is heated by a burner 17 at a hot air temperature of about 1000 ° C. in an alternating current system. Contact with CaCO 3 + Na 2
CO 3 → CaO + 2CO 2 + Na 2 O Decomposed and fired.
Sodium carbonate increases the solidification strength of granulated dehydrated lime mud,
This prevents breakage and damage of the granulated material during firing at a high temperature of about 1000 ° C.
【００１５】焼成されたＣａＯ＋Ｎａ2Ｏは冷却された
後、粗糖汁１（ロージュース）の清浄工程に再利用され
る。After the calcined CaO + Na 2 O is cooled, it is reused in the step of cleaning crude sugar juice 1 (raw juice).
【００１６】更に、石灰焼成キルン１６より発生した二
酸化炭素ガス９も、誘引ファン１８により粗糖汁１（ロ
ージュース）の清浄工程に再利用される。Further, the carbon dioxide gas 9 generated from the lime burning kiln 16 is also reused by the induction fan 18 in the step of cleaning the crude sugar juice 1 (raw juice).
【００１７】炭酸ナトリウム又は水酸化ナトリウム１３
が造粒助剤に適している理由は、生石灰４の焼成物に残
留してもビート糖汁清浄工程に悪影響がなく、焼成中の
造粒強度を維持出来、安定した焼成等を維持出来るから
である。Sodium carbonate or sodium hydroxide 13
Is suitable as a granulation aid because it remains in the burnt product of quick lime 4 without any adverse effect on the beet juice cleaning step, can maintain granulation strength during burning, and can maintain stable burning and the like. It is.
【００１８】上記説明では、ライムケーキ再生循環を目
的に清浄工程途中で炭酸ナトリウム又は水酸化ナトリウ
ムを造粒助剤として添加し、石灰焼成しているが、脱水
石灰泥（ＣａＣＯ3）に造粒助剤として供給し、造粒焼
成することもできる。[0018] In the above description, the lime cake regeneration recycle adding sodium carbonate or sodium hydroxide in the course cleaning process with the purpose as granulating aids, although lime calcining, granulating the dried lime mud (CaCO 3) It can be supplied as an auxiliary agent and granulated and fired.
【００１９】かかる実施例では、石灰泥の焼成を可能に
し、再循環する為、炭酸ナトリウム又は水酸化ナトリウ
ムを石灰泥に造粒助剤として添加し、脱水石灰泥を造粒
し、石灰焼成キルン１６の内部で粉塵飛散が起こりにく
くすることにより、石灰焼成を可能にして、生石灰と二
酸化炭素ガスが生成し、これらをビート糖の製造過程
で、再循環利用をすることができる。In this embodiment, sodium carbonate or sodium hydroxide is added to lime mud as a granulation aid to enable lime mud calcination and recirculation, and dehydrated lime mud is granulated to form a lime calcination kiln. By making it difficult for dust to be scattered inside the ash 16, lime calcination is enabled, and quick lime and carbon dioxide gas are generated, which can be recycled and used in the process of producing beet sugar.
【００２０】水酸化ナトリウムを添加する場合にあって
は、水酸化ナトリウムは粗糖汁１中の二酸化炭素ガス飽
充に反応し、炭酸ナトリウムと水とが得られる。又、再
循環利用の場合には、ナトリウムも再循環利用が可能に
なる。When sodium hydroxide is added, sodium hydroxide reacts with the saturation of carbon dioxide gas in the crude sugar juice 1 to obtain sodium carbonate and water. In the case of recycling, sodium can also be recycled.
【００２１】すなわち、ビート糖工場における粗糖汁
（ロージュース）の清浄に生石灰（ＣａＯ）と二酸化炭
素ガス（ＣＯ2）を用い、ＰＨコントロール、非糖分除
去、殺菌処理等を行い祖糖汁を清浄安定化に役立ててい
る。その結果、生石灰（ＣａＯ）は祖糖汁中で二酸化炭
素ガス（ＣＯ2）と反応し石灰泥となる。That is, in order to clean crude sugar juice (raw juice) in a beet sugar factory, quick lime (CaO) and carbon dioxide gas (CO 2 ) are used, and PH control, non-sugar content removal, sterilization treatment, etc. are performed to purify the sugar juice. Useful for stabilization. As a result, quick lime (CaO) is lime mud reacts with carbon dioxide gas (CO 2) in its sugar juice in.
【００２２】反応済石灰泥（ＣａＣＯ3）には清浄利用
中に非糖分等有機物を１０％前後保有した糖汁中の沈殿
石灰化合物で、脱水して糖汁回収を行い、固形分脱水石
灰泥（ＣａＣＯ3）を石灰焼成可能にする為、事前に炭
酸ナトリウム（Ｎａ2ＣＯ3）又は水酸化ナトリウム（Ｎ
ａＯＨ）を添加し脱水石灰泥の造粒を維持し焼成を安定
させている。Reacted lime mud (CaCO 3 ) is a precipitated lime compound in sugar juice that retains about 10% of organic matter such as non-sugar during cleaning, and is dehydrated to recover sugar juice. In order to make (CaCO 3 ) lime calcinable, sodium carbonate (Na 2 CO 3 ) or sodium hydroxide (N
aOH) is added to maintain the granulation of the dehydrated lime mud and stabilize the firing.
【００２３】[0023]
【発明の効果】本発明によれば、ビート糖工場では石灰
を大量に利用され、且つ反応済脱水石灰泥の大半は利用
されず、埋立て処分としていたが、生石灰再循環利用に
より、石灰原石資源保護に役立つことができる。According to the present invention, a large amount of lime is used in a beet sugar factory, and most of the reacted dehydrated lime mud is not used but landfilled. Can help conserve resources.
【００２４】又、 脱水石灰泥の産業廃棄物化を阻止
し、自然環境を保全することができる。Further, it is possible to prevent the dehydrated lime mud from being turned into industrial waste, thereby preserving the natural environment.
【図１】 本発明にかかるライムケーキの再利用方法の
一実施例のフローチャートである。FIG. 1 is a flowchart of an embodiment of a lime cake recycling method according to the present invention.
１ 粗糖汁（ロージュース） ２ 第１清浄設備 ３ 第２清浄設備 ４ 生石灰（ＣａＯ） ５ 石灰乳装置 ６ 水（Ｈ2Ｏ） ７ 土壌改良剤 ８ 石灰乳（Ｃａ(ＯＨ)2） ９ 二酸化炭素（ＣＯ2） １０ 清浄糖汁（シンジュース） １１ 石灰泥（ＣａＣＯ3、ライムケーキ） １２ 攪拌機付石灰泥槽 １３ 炭酸ナトリウム（Ｎａ2ＣＯ3）又は水酸化ナト
リウム（ＮａＯＨ） １４ 脱水機 １５ 脱水石灰泥（ＣａＣＯ3） １６ 石灰焼成キルン １７ バーナー １８ 誘引ファン1 raw sugar juice (raw juice) 2 first cleaning equipment 3 second cleaning equipment 4 quicklime (CaO) 5 milk of lime device 6 water (H 2 O) 7 soil conditioner 8 lime milk (Ca (OH) 2) 9 CO (CO 2 ) 10 Clean sugar juice (shin juice) 11 Lime mud (CaCO 3 , lime cake) 12 Lime mud tank with stirrer 13 Sodium carbonate (Na 2 CO 3 ) or sodium hydroxide (NaOH) 14 Dehydrator 15 Dehydrated lime Mud (CaCO 3 ) 16 Lime burning kiln 17 Burner 18 Induction fan
Claims (1)
ケーキ（ＣａＣＯ3）に、再生利用目的で炭酸ナトリウ
ム又は水酸化ナトリウムを添加し脱水、造粒、焼成し、
生石灰（ＣａＯ）を生成し、この生石灰（ＣａＯ）をビ
ート糖の製造工程で再利用することを特徴とするライム
ケーキの再利用方法。1. A lime cake (CaCO 3 ) produced in a process of producing beet sugar, to which sodium carbonate or sodium hydroxide is added for the purpose of recycling, dehydration, granulation, and firing,
A method for recycling lime cake, characterized in that quicklime (CaO) is generated and this quicklime (CaO) is reused in a process of producing beet sugar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001025786A JP3436926B2 (en) | 2001-02-01 | 2001-02-01 | How to reuse lime cake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001025786A JP3436926B2 (en) | 2001-02-01 | 2001-02-01 | How to reuse lime cake |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2002223800A true JP2002223800A (en) | 2002-08-13 |
| JP3436926B2 JP3436926B2 (en) | 2003-08-18 |
Family
ID=18890711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001025786A Expired - Fee Related JP3436926B2 (en) | 2001-02-01 | 2001-02-01 | How to reuse lime cake |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3436926B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009240326A (en) * | 2009-07-21 | 2009-10-22 | Hokkaido Sugar Co Ltd | Method for producing sugar |
| JP7193688B1 (en) | 2021-11-15 | 2022-12-21 | 株式会社 セテック | Method for reusing lime cake (calcium carbonate with high water content) and recycling system for lime cake (calcium carbonate with high water content) |
-
2001
- 2001-02-01 JP JP2001025786A patent/JP3436926B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009240326A (en) * | 2009-07-21 | 2009-10-22 | Hokkaido Sugar Co Ltd | Method for producing sugar |
| JP4745428B2 (en) * | 2009-07-21 | 2011-08-10 | 北海道糖業株式会社 | Sugar production method |
| JP7193688B1 (en) | 2021-11-15 | 2022-12-21 | 株式会社 セテック | Method for reusing lime cake (calcium carbonate with high water content) and recycling system for lime cake (calcium carbonate with high water content) |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3436926B2 (en) | 2003-08-18 |
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