JPH03202138A - Granulating dripping nozzle and granulator using the same - Google Patents
Granulating dripping nozzle and granulator using the sameInfo
- Publication number
- JPH03202138A JPH03202138A JP34354189A JP34354189A JPH03202138A JP H03202138 A JPH03202138 A JP H03202138A JP 34354189 A JP34354189 A JP 34354189A JP 34354189 A JP34354189 A JP 34354189A JP H03202138 A JPH03202138 A JP H03202138A
- Authority
- JP
- Japan
- Prior art keywords
- tank
- nozzle
- liquid
- granulation
- dripping
- 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.)
- Pending
Links
- 238000005469 granulation Methods 0.000 claims abstract description 41
- 230000003179 granulation Effects 0.000 claims abstract description 41
- 239000007788 liquid Substances 0.000 claims abstract description 38
- 239000008187 granular material Substances 0.000 claims abstract description 37
- 238000006243 chemical reaction Methods 0.000 claims abstract description 4
- 239000002612 dispersion medium Substances 0.000 claims description 25
- 239000002245 particle Substances 0.000 claims description 16
- 239000007864 aqueous solution Substances 0.000 abstract description 22
- 235000010443 alginic acid Nutrition 0.000 abstract description 12
- 229920000615 alginic acid Polymers 0.000 abstract description 12
- FHVDTGUDJYJELY-UHFFFAOYSA-N 6-{[2-carboxy-4,5-dihydroxy-6-(phosphanyloxy)oxan-3-yl]oxy}-4,5-dihydroxy-3-phosphanyloxane-2-carboxylic acid Chemical compound O1C(C(O)=O)C(P)C(O)C(O)C1OC1C(C(O)=O)OC(OP)C(O)C1O FHVDTGUDJYJELY-UHFFFAOYSA-N 0.000 abstract description 10
- 229940072056 alginate Drugs 0.000 abstract description 10
- 239000000843 powder Substances 0.000 abstract description 10
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 abstract description 7
- 239000002781 deodorant agent Substances 0.000 abstract 1
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 23
- 229910001868 water Inorganic materials 0.000 description 23
- 239000001110 calcium chloride Substances 0.000 description 21
- 229910001628 calcium chloride Inorganic materials 0.000 description 21
- 230000001877 deodorizing effect Effects 0.000 description 18
- 238000004519 manufacturing process Methods 0.000 description 18
- 238000000034 method Methods 0.000 description 9
- IXPNQXFRVYWDDI-UHFFFAOYSA-N 1-methyl-2,4-dioxo-1,3-diazinane-5-carboximidamide Chemical compound CN1CC(C(N)=N)C(=O)NC1=O IXPNQXFRVYWDDI-UHFFFAOYSA-N 0.000 description 6
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 6
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 6
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 6
- 239000012530 fluid Substances 0.000 description 6
- 239000000661 sodium alginate Substances 0.000 description 6
- 235000010413 sodium alginate Nutrition 0.000 description 6
- 229940005550 sodium alginate Drugs 0.000 description 6
- 239000002253 acid Substances 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 5
- 238000002844 melting Methods 0.000 description 5
- 230000008018 melting Effects 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 239000012528 membrane Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910021645 metal ion Inorganic materials 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- 238000001035 drying Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000011780 sodium chloride Substances 0.000 description 3
- 239000004408 titanium dioxide Substances 0.000 description 3
- 239000011787 zinc oxide Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 description 2
- 239000000783 alginic acid Substances 0.000 description 2
- 229960001126 alginic acid Drugs 0.000 description 2
- 150000004781 alginic acids Chemical class 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 239000000648 calcium alginate Substances 0.000 description 2
- 235000010410 calcium alginate Nutrition 0.000 description 2
- 229960002681 calcium alginate Drugs 0.000 description 2
- OKHHGHGGPDJQHR-YMOPUZKJSA-L calcium;(2s,3s,4s,5s,6r)-6-[(2r,3s,4r,5s,6r)-2-carboxy-6-[(2r,3s,4r,5s,6r)-2-carboxylato-4,5,6-trihydroxyoxan-3-yl]oxy-4,5-dihydroxyoxan-3-yl]oxy-3,4,5-trihydroxyoxane-2-carboxylate Chemical compound [Ca+2].O[C@@H]1[C@H](O)[C@H](O)O[C@@H](C([O-])=O)[C@H]1O[C@H]1[C@@H](O)[C@@H](O)[C@H](O[C@H]2[C@H]([C@@H](O)[C@H](O)[C@H](O2)C([O-])=O)O)[C@H](C(O)=O)O1 OKHHGHGGPDJQHR-YMOPUZKJSA-L 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000011259 mixed solution Substances 0.000 description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- -1 sodium alginate Chemical compound 0.000 description 2
- 229910001415 sodium ion Inorganic materials 0.000 description 2
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 1
- 125000003158 alcohol group Chemical group 0.000 description 1
- 229910001424 calcium ion Inorganic materials 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
Landscapes
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
Abstract
Description
【発明の詳細な説明】
(発明の目的)
〈産業上の利用分野〉
本発明は例えば水溶性アルギン酸塩を塩化カルシウム等
の金属塩水溶液や酸あるいはアルコール等の分散媒中に
滴下分散させることにより、分散粒の表面ないし表面内
側が不溶性となることを利用して粒剤を製造する手法に
おいて、良好な滴下状態を得るための造粒用滴下ノズル
並びにこれを用いた造粒装置に関するものである。[Detailed Description of the Invention] (Objective of the Invention) <Industrial Application Field> The present invention can be applied by dispersing water-soluble alginate dropwise into an aqueous solution of a metal salt such as calcium chloride or a dispersion medium such as an acid or alcohol. , relates to a dropping nozzle for granulation and a granulation device using the same to obtain a good dripping condition in a method of producing granules by utilizing the insolubility of the surface or inner surface of dispersed particles. .
〈発明の背景〉
近年、酸化亜鉛と二酸化チタンと水分子とが緊密に結合
した粒子の集合体(特開昭6154935号参照)が、
その強力な脱臭性能が評価されて種々の分野において使
用されている。この酸化亜鉛と二酸化チタンと水分子と
が緊密に結合した粒子の集合体に代表されるような脱臭
微粉末剤は、ミクロンないしサブミクロンオーダーの微
粒子であるため、そのままの状態では容易に飛散してし
まい、実際には使用することが極めて困難であった。そ
こでこのものを使用するに際しては、ポリビニールアル
コール等のバインダーを用いて、紙、繊維、発泡体等に
担持させる手法をとっていた。しかし、このような方法
で使用する場合には、バインダーの粘性または粘着性の
ため造粒し難かったり、ポリビニールアルコールの膜は
ガス透過性が悪いため充分な脱臭効果が得られないとい
う問題があった。<Background of the Invention> In recent years, aggregates of particles in which zinc oxide, titanium dioxide, and water molecules are tightly bound (see Japanese Patent Application Laid-Open No. 6154935) have been developed.
Its strong deodorizing performance has been evaluated and it has been used in various fields. This deodorizing fine powder agent, which is represented by an aggregate of particles in which zinc oxide, titanium dioxide, and water molecules are tightly bound, is a fine particle of micron or submicron order, so it is easily scattered in its original state. This made it extremely difficult to use in practice. Therefore, when using this material, a method has been adopted in which a binder such as polyvinyl alcohol is used and the material is supported on paper, fiber, foam, etc. However, when using this method, there are problems such as difficulty in granulation due to the viscosity or stickiness of the binder, and insufficient deodorizing effects due to the poor gas permeability of the polyvinyl alcohol film. there were.
そこで本発明者は直接造粒された形態の製品を得るべく
研究を試み、その結果、脱臭微粉末剤を水溶性アルギン
酸塩水溶液中に混合して混合液とし、この混合液を多価
金属イオンとなり得る金属塩水溶液や酸あるいはアルコ
ール等の分散媒中に滴下して得られる少なくとも表面が
不溶化した中間生成物を乾燥することにより脱臭粒剤を
製造する方法及びその類似技術を開発するに至っている
。しかしながら、前記混合液を分散媒に滴下するにあた
っては、単なる円環状のノズルから滴下させるだけでは
、その滴下の時間的間隔が遅く、工業的に多量生産する
には未だ改良の余地があった。もとより滴下の時間的間
隔を速めるためにはタンク内を加圧する手法も考慮され
る一手法ではあるが、実際にはこの手法では液が連続的
に流下してしまい粒剤が得られない。更に比較的大きな
径の粒剤を作る場合には、そのためのノズルを幾つか用
意しなければならず、ノズルをそれに合う寸法設定のも
のに取り替えねばならず生産管理が面倒となる。このよ
うな点においてこの先行技術にあっても、未だ開発すべ
き課題が残っていた。Therefore, the present inventor attempted research to obtain a directly granulated product, and as a result, the deodorizing fine powder was mixed into a water-soluble alginate aqueous solution to form a mixed solution, and this mixed solution was mixed with polyvalent metal ions. A method for manufacturing deodorizing granules by drying an intermediate product obtained by dropping the product dropwise into a dispersion medium such as a metal salt aqueous solution or an acid or an alcohol, which is insolubilized at least on the surface, and a similar technology have been developed. . However, when dropping the liquid mixture into the dispersion medium, the time interval between drops is slow if the mixture is simply dropped from a circular nozzle, and there is still room for improvement for industrial mass production. Of course, in order to speed up the time interval between drops, pressurizing the inside of the tank is one method that can be considered, but in reality, with this method, the liquid flows down continuously and granules cannot be obtained. Furthermore, when producing granules with a relatively large diameter, it is necessary to prepare several nozzles for that purpose, and the nozzles must be replaced with ones whose dimensions are set to match, making production management troublesome. In this respect, even with this prior art, there are still problems to be developed.
く開発を試みた技術的事項〉
本発明はこのような背景に鑑みなされたものであって、
ノズル先端部の表面張力を小さくすることによりノズル
からの滴下間隔を速めて製造効率を高め、またノズル先
端部の滴下部の形状を変えることにより大きな径の液滴
ができるようにした造粒用滴下ノズル並びにこれを用い
た造粒装置の開発を試みたものである。Technical matters for which development was attempted> The present invention was made in view of this background, and
For granulation, the surface tension at the nozzle tip is reduced to speed up the interval between drops from the nozzle, increasing production efficiency, and by changing the shape of the dripping area at the nozzle tip, large diameter droplets can be produced. This is an attempt to develop a dropping nozzle and a granulation device using the same.
(発明の構成)
く目的達成の手段〉
即ち、本出願に係る第一の発明たる造粒用滴下ノズルは
、タンクに設けたノズルからタンク下方に設けた造粒槽
内の分散媒中にタンク内の液体を滴下させ、前記分散媒
の成分と前記液体との間の反応により前記分散媒に不溶
となる粒剤を製造する装置において、前記ノズルは管体
と細い縁体とを有し、この縁体は管体の端部より延長形
成した滴下部を有することを特徴として戒るものである
。(Structure of the Invention) Means for Achieving the Object> That is, the dropping nozzle for granulation, which is the first invention according to the present application, is capable of dispersing liquid from a nozzle provided in a tank into a dispersion medium in a granulation tank provided below the tank. In the apparatus for producing granules that become insoluble in the dispersion medium by a reaction between components of the dispersion medium and the liquid by dropping a liquid therein, the nozzle has a tube body and a narrow edge, This rim is characterized by having a dripping portion extending from the end of the tube.
また本出願に係る第二の発明たる造粒用滴下ノズルは前
記要件に加え、前記縁体の滴下部は垂直方向に対して斜
めに形成されていることを特徴として戒るものである。In addition to meeting the above-mentioned requirements, the dropping nozzle for granulation, which is the second invention according to the present application, is characterized in that the dropping portion of the edge body is formed obliquely with respect to the vertical direction.
更にまた本出願に係る第三の発明たる造粒用滴下ノズル
は前記要件に加え、前記縁体の滴下部には、縁体をほぼ
円環状に形成した粒径調節部を有することを特徴として
成るものである。Furthermore, in addition to the above-mentioned requirements, the third invention of the present application is a dropping nozzle for granulation, which is characterized in that the dripping part of the edge has a particle size adjusting part in which the edge is formed into a substantially annular shape. It is what it is.
更にまた本出願に係る第四の発明たる造粒用滴下ノズル
を用いた造粒装置は前記要件に加え、前記縁体の滴下部
と前記造粒槽における分散媒の液面との距離を変えるこ
とができることを特徴として成るものである。Furthermore, in addition to the above-mentioned requirements, the fourth invention of the present application, a granulation device using a dropping nozzle for granulation, changes the distance between the dripping part of the edge and the liquid level of the dispersion medium in the granulation tank. It is characterized by being able to do things.
これら発明により前記目的を遠戚しようとするものであ
る。These inventions are intended to distantly achieve the above object.
〈発明の作用〉
本発明にあっては、ノズルが細い縁体を有し、この縁体
は管体の端部より延長形成した滴下部を有するから、ノ
ズルから流れ出た液体が縁体を伝って滴下部に至り、こ
の滴下部から速い間隔で滴下する。<Operation of the Invention> In the present invention, since the nozzle has a thin rim body and this rim body has a dripping portion extending from the end of the tube body, the liquid flowing out from the nozzle is transmitted along the rim body. The liquid then reaches the dripping part, from which it is dripped at rapid intervals.
また縁体における滴下部を垂直方法に対して斜めに形成
させれば、滴下部を垂直の向きにした場合に比べて滴下
の間隔が一層速くなる。Also, if the drip portions of the edge are formed obliquely to the vertical direction, the intervals between drops will be faster than when the drip portions are oriented vertically.
更に縁体の滴下部に、縁体をほぼ円環状に形成した粒径
調節部を設ければ、この粒径調節部の径寸法を変えるこ
とにより大きな径寸法の液滴を滴下させることができる
。Furthermore, by providing a particle size adjusting section in which the rim is formed into a substantially annular shape at the dripping portion of the rim, droplets with a large diameter can be dripped by changing the diameter of this particle size adjusting section. .
更にまた縁体の滴下部と造粒槽における分散媒の液面と
の距離を変えることができるようにすれば、液滴の落下
距離を変えることができるため、落下距離に応した落下
中の液滴の物理的変化により種々の粒剤を製造すること
ができる。Furthermore, by making it possible to change the distance between the dripping part of the rim and the liquid surface of the dispersion medium in the granulation tank, the falling distance of the droplet can be changed, so that the falling distance can be adjusted according to the falling distance. Various granules can be produced by physical changes in droplets.
〈実施例〉
以下本発明を図示の実施例に基づいて具体的に説明する
。符号1は本発明たる造粒装置を一部に組み込んだ脱臭
粒剤の製造ラインであって、この製造ライン1はアルギ
ン酸塩水溶液に脱臭微粉末剤を混合するための熔解槽2
と、溶解槽2内の液体を滴下して粒状化させる造粒装置
3と、この造粒装置3で造粒された粒剤を洗浄する洗浄
装W4とを具えて成る。ここで、この製造ラインjによ
り製造する脱臭粒剤の製造原理及び製造方法についてま
ず簡単に説明する。まず脱臭粒剤の製造原理は、水溶性
アルギン酸塩水溶液に脱臭微粉末剤を混合しておき、こ
の混合液を塩化カルシウム等の多価金属イオンとなり得
る金属塩水溶液や酸あるいはアルコール等の分散媒中に
分散させ、分散流の表面ないしはその内側が不溶化する
ことを利用して粒剤化するというものである。即ち、多
価金属イオンとなり得る金属塩水′f4?(lを分散媒
とする場合には、水溶性アルギン酸塩たる例えばアルギ
ン酸ナトリウムのナトリウムイオンが、多価金属イオン
たる例えばカルシウムイオンに置換して、水に不溶なア
ルギン酸カルシウムの層を少なくとも表面に形成して粒
剤となる。また酸を分散媒とする場合には、水溶性アル
ギン酸塩たる例えばアルギン酸ナトリウムのナトリウム
イオンが水素イオンに置換して、水に不溶なゲル状のア
ルギン酸の層を少なくとも表面に形威して粒剤となる。<Examples> The present invention will be specifically described below based on illustrated examples. Reference numeral 1 denotes a deodorizing granule production line in which the granulation device of the present invention is incorporated, and this production line 1 includes a melting tank 2 for mixing a deodorizing fine powder into an alginate aqueous solution.
, a granulating device 3 that drops the liquid in the dissolving tank 2 to granulate it, and a cleaning device W4 that cleans the granules granulated by this granulating device 3. Here, the manufacturing principle and manufacturing method of the deodorizing granules manufactured by this manufacturing line j will be briefly explained. First, the manufacturing principle of deodorizing granules is that a deodorizing fine powder is mixed into a water-soluble alginate aqueous solution, and this mixture is mixed with an aqueous solution of a metal salt that can become a polyvalent metal ion such as calcium chloride, or a dispersion medium such as an acid or alcohol. In this method, the particles are dispersed in the liquid, and the surface or inside of the dispersion stream becomes insolubilized to form granules. That is, metal salt water 'f4? that can become a polyvalent metal ion? (When l is used as a dispersion medium, the sodium ions of a water-soluble alginate, such as sodium alginate, are substituted with polyvalent metal ions, such as calcium ions, to form a layer of water-insoluble calcium alginate on at least the surface. When an acid is used as a dispersion medium, the sodium ions of a water-soluble alginate such as sodium alginate are replaced with hydrogen ions, and a layer of water-insoluble gel-like alginic acid is formed on at least the surface. It is transformed into granules.
更にアルコールを分散媒とする場合には、水溶性アルギ
ン酸塩と水和状態にある水分子が、アルコールの脱水作
用により脱水されるため、水溶性アルギン酸塩自体が水
に不溶となり粒剤化する。次に製造方法は、まずアルギ
ン酸ナトリウムを水に熔解して、このものに脱臭微粉末
剤を混合する。そしてこの混合液を分散媒中に滴下する
ことにより粒状化させた後、これを洗浄、乾燥して脱臭
粒剤を得る。尚、脱臭微粉末剤としては、酸化亜鉛と二
酸化チタンと水分子とが緊密に結合した粒子の集合体(
特開昭6354935号参照)や活性炭を用いることが
できる。Further, when alcohol is used as a dispersion medium, water molecules in a hydrated state with the water-soluble alginate are dehydrated by the dehydrating action of the alcohol, so that the water-soluble alginate itself becomes insoluble in water and becomes granulated. Next, in the manufacturing method, sodium alginate is first dissolved in water, and a deodorizing fine powder is mixed therein. Then, this liquid mixture is dropped into a dispersion medium to form granules, which are then washed and dried to obtain deodorizing granules. In addition, the deodorizing fine powder agent is an aggregate of particles in which zinc oxide, titanium dioxide, and water molecules are tightly bound together (
JP-A-6354935) or activated carbon can be used.
以上が脱臭粒剤の製造原理及び製造方法であるが、以下
その製造ライン1について説明する。The manufacturing principle and manufacturing method of the deodorizing granules have been described above, and the manufacturing line 1 thereof will be explained below.
熔解槽2は円筒形のタンクであり、このものには脱臭微
粉末剤をアルギン酸塩水溶液と混合するためのホモミキ
サ6と、脱臭微粉末剤をためておき適宜の量を熔解槽2
に供給するホッパ7とを有する。またこのような溶解槽
2の底部からは、造粒装置3の最上部に設けたタンク1
0へ混合液供給管11が設けられ、この混合液供給管1
1にはポンプP、を設ける。また造粒装置3は、このタ
ンク10と造粒槽13とを具えて成る。タンク10は底
部に複数の孔を形威し、この孔に各々ノズル14を取り
付けて戊る。またこのタンク10は上下に移動可能であ
り、これによりタンク■0と後述する造粒槽13におけ
る分散媒たる塩化カルシウム水溶液の液面との距離を変
えることができる。因みにこのような構造をとり、液滴
の落下距離を変えることができるようにすることにより
、液滴落下中の状態を変えることができる。即ち、例え
ば落下距離を長くすれば、初めは流体が落下部16aか
ら連続的に流れている場合でも、落下中に流体が加速し
て、表面張力の関係から造粒槽13に落下する時点では
液滴状態となるようにすることができる。また落下距離
を長くして充分液滴が加速できるようにすれば、着流時
にその衝撃で液滴が大小複数に分割して種々の大きさの
粒剤りができる。尚、この大小混じった粒剤りを分級す
れば、滴下による方法では得られない小さな径の粒剤り
を得ることができる。更に例えば大きな径寸法の液滴を
落下させる場合には、造粒槽13内の分散媒との衝突時
に液滴が崩れないようにするために、落下距離を短くず
ればよい。尚、液滴の落下距離を変える方法としては、
このほかにも後述する造粒槽13を上下に移動できるよ
うにしてもよいし、造粒槽13内の塩化カルシウム水溶
液の液面高さが変えられるようにしてもよい。一方、ノ
ズル14は、タンク10内へ滴下させるためのものであ
って、このものは第1図に示すように管体15と細い針
金状の縁体16とを有し、縁体16の先端が管体15の
端部から延長形成されている。このように管体15の端
部から延長形成した縁体16の部分は本発明の特徴的な
構成部分であり、この部分で実質的に滴下が行われるこ
とから滴下部16aと定義する。またこの滴下部16a
は、第2図(a)に示すように垂直方向に真っすく形成
するもののほか、第2図(b)に示すように垂直方向に
対して斜めに形威したり、その変形として第2図(C)
に示すように弓形に形威したものや、更に第2図(d)
に示すようにその一部にほぼ円環状に形威した粒径調節
部17を設けるものでもよい。因みに滴下部16aを垂
直方向に対して斜めに形成したり、弓形に形成すれば、
滴下の間隔を速くすることができる。また滴下部16a
の一部に粒径調節部17を設ければ、これ1
を設けない場合に比べて大きな径の液滴を滴下させるこ
とができる。尚、縁体16は本実施例のように管体15
内を貫通しているもののほか、管体15の端部付近にだ
け設けたものでもよい。また管体15内の縁体16は第
3図に示すように螺旋状にしてもよい。またタンク10
の側面上方寄りには、タンク10内のvft、mが一定
以上となったときに溢れた液を熔解槽2へ戻すために流
出管18を設ける。また造粒槽13は底部が漏斗状に形
威され、そこに導液管19を取り付けたものであり、こ
のものには分散媒たる塩化カルシウム水溶液を溜めてお
く。次に洗浄装置4について説明する。このものはコン
ヘヤ装置20と液槽21とを具えて戒り、導液管19か
ら供給された粒剤りをコンベヤ装置20で移送中に塩化
カルシウムの成分を洗い流すための装置である。コンベ
ヤ装置20は液槽21の上部に設けられ、このものは細
かい網状のコンベヤベルト20aと駆動プーリ20bと
従動プーリ20Cとを具え、モータMの駆動により駆動
ブーU20bを回転し、コンベヤヘルド202
aを前方に進行させる。またこのコンベヤ装置20には
二つのシャワー装置22.23がその途中に設けられる
。因みにこの二つのシャワー装置のうち、造粒装置3寄
りのシャワー装置22は、旦洗浄水として使用し、後述
する水槽25に溜まった水を再度使用してコンベヤ装置
20上を移送する粒剤りに振り掛けるものであり、他方
のシャワー装置23は真水を粒剤りに振り掛けて洗浄を
完全なものとするためのものである。尚、水槽25内の
洗浄水の汲み上げはポンプP2により行う。また液槽2
1は塩化カルシウム水溶液24と水槽25とから戒る。The melting tank 2 is a cylindrical tank, which includes a homomixer 6 for mixing the deodorizing fine powder with the alginate aqueous solution, and a homomixer 6 for storing the deodorizing fine powder and transferring the appropriate amount to the melting tank 2.
It has a hopper 7 for supplying the water. Further, from the bottom of such a dissolution tank 2, a tank 1 provided at the top of the granulation device 3 is connected.
A mixed liquid supply pipe 11 is provided to 0, and this mixed liquid supply pipe 1
1 is provided with a pump P. Further, the granulating device 3 includes this tank 10 and a granulating tank 13. The tank 10 has a plurality of holes in its bottom, each of which has a nozzle 14 attached thereto. Further, this tank 10 is movable up and down, so that the distance between tank 0 and the surface of the calcium chloride aqueous solution serving as a dispersion medium in a granulation tank 13, which will be described later, can be changed. Incidentally, by adopting such a structure and making it possible to change the falling distance of the droplet, it is possible to change the state during the droplet falling. That is, for example, if the falling distance is increased, even if the fluid is initially flowing continuously from the falling part 16a, the fluid will accelerate during falling and by the time it falls into the granulation tank 13 due to surface tension. It can be made to be in a droplet state. Furthermore, if the droplet is sufficiently accelerated by increasing the falling distance, the droplet will be divided into a plurality of large and small particles due to the impact upon landing, forming granules of various sizes. Incidentally, by classifying the granules having a mixture of sizes, it is possible to obtain granules with a small diameter that cannot be obtained by the dropping method. Further, for example, when droplets with a large diameter are dropped, the falling distance may be shortened to prevent the droplets from collapsing upon collision with the dispersion medium in the granulation tank 13. In addition, as a method of changing the falling distance of droplets,
In addition, the granulation tank 13, which will be described later, may be moved up and down, or the level of the calcium chloride aqueous solution in the granulation tank 13 may be changed. On the other hand, the nozzle 14 is for dripping into the tank 10, and has a tube body 15 and a thin wire-like edge body 16, as shown in FIG. is formed to extend from the end of the tube body 15. The portion of the edge 16 extending from the end of the tube 15 is a characteristic component of the present invention, and is defined as the dripping portion 16a since dripping is substantially performed in this portion. Also, this dripping part 16a
In addition to being formed straight in the vertical direction as shown in Fig. 2 (a), they may be formed obliquely to the vertical direction as shown in Fig. 2 (b), or as variations thereof, as shown in Fig. 2 (C)
As shown in Figure 2(d), there are also bow-shaped ones and
As shown in FIG. 2, a particle size adjusting portion 17 having an approximately annular shape may be provided in a part thereof. Incidentally, if the dripping part 16a is formed obliquely with respect to the vertical direction or in an arcuate shape,
The interval between drops can be made faster. Also, the dripping part 16a
By providing the particle size adjusting portion 17 in a part of the droplet, it is possible to drop droplets with a larger diameter than in the case where the particle size adjusting portion 17 is not provided. Note that the edge body 16 is connected to the tube body 15 as in this embodiment.
In addition to penetrating the inside of the tube body 15, it may be provided only near the end of the tube body 15. Furthermore, the rim 16 within the tubular body 15 may have a spiral shape as shown in FIG. Also tank 10
An outflow pipe 18 is provided near the upper side of the tank 10 to return overflowing liquid to the melting tank 2 when vft and m in the tank 10 exceed a certain level. The granulation tank 13 has a funnel-shaped bottom and a liquid guide pipe 19 is attached thereto, in which an aqueous calcium chloride solution serving as a dispersion medium is stored. Next, the cleaning device 4 will be explained. This device is equipped with a conveyor device 20 and a liquid tank 21, and is a device for washing away calcium chloride components while the granules supplied from the liquid guide pipe 19 are being transferred by the conveyor device 20. The conveyor device 20 is provided above the liquid tank 21, and includes a fine mesh conveyor belt 20a, a drive pulley 20b, and a driven pulley 20C, and is driven by a motor M to rotate a drive boo U20b and conveyor heald 202a. advance forward. The conveyor device 20 is also provided with two shower devices 22 and 23 in the middle thereof. Incidentally, of these two shower devices, the shower device 22 that is closer to the granulation device 3 is used to transport the granules on the conveyor device 20, using the water that has been collected in a water tank 25, which will be described later, and which is first used as washing water. The other shower device 23 is for sprinkling fresh water on the granules for complete cleaning. Note that the cleaning water in the water tank 25 is pumped up by the pump P2. Also, liquid tank 2
1 is kept away from the calcium chloride aqueous solution 24 and the water tank 25.
塩化カルシウム水溶液槽24は造粒装置3寄りに形威さ
れ、その槽内には槽を更に造粒装置3側と他の側に分け
るようにして分離膜26を設ける。尚、この分離膜26
は塩化ナトリウム成分の透過を阻止するものを適用する
ことが好ましい。即ち造粒槽13内でアルギン酸ナトリ
ウムと塩化カルシウムとの反応によって生じた塩化ナト
リウムが、塩化カルシウム分と一緒に水溶液として導液
管19からコンベヤ装置) 20 aを通って塩化カル
シウム水溶液槽24に溜まるため、塩化カルシウム分だ
けを造粒装置3例の塩化カルシウム水溶液槽24に回収
できれば造粒効率を上げることができるからである。The calcium chloride aqueous solution tank 24 is placed near the granulator 3, and a separation membrane 26 is provided within the tank to further divide the tank into the granulator 3 side and the other side. Note that this separation membrane 26
It is preferable to use a material that blocks the permeation of sodium chloride components. That is, sodium chloride generated by the reaction between sodium alginate and calcium chloride in the granulation tank 13 is collected as an aqueous solution together with calcium chloride in the calcium chloride aqueous solution tank 24 from the liquid guide pipe 19 through the conveyor device 20a. Therefore, if only the calcium chloride component can be recovered into the calcium chloride aqueous solution tank 24 of the three granulating apparatuses, the granulation efficiency can be increased.
そして造粒装置3例の塩化カルシウム水溶液槽24には
、上部から液が入らないように蓋27を設けるとともに
、その下方にはポンプPaを有するリターン管28を設
ける。因みにこのリターン管28は回収した塩化カルシ
ウム分を再度造粒槽13に供給するためのものである。The calcium chloride aqueous solution tank 24 of the three granulating apparatuses is provided with a lid 27 to prevent liquid from entering from above, and a return pipe 28 having a pump Pa is provided below the lid 27. Incidentally, this return pipe 28 is for supplying the recovered calcium chloride to the granulation tank 13 again.
一方、水槽25はその上部が皿状に広がった洗浄水受部
29を形威し、この洗浄水受部29に落ちた水は水槽2
5内に溜まるようになっている。尚、コンヘヤ装置20
の後には乾燥工程が接続される。On the other hand, the water tank 25 has a dish-shaped washing water receiving part 29 at its upper part, and the water that falls into this washing water receiving part 29 is collected from the water tank 2.
It is designed to accumulate within 5. In addition, the conveyor device 20
is followed by a drying step.
本発明たる造粒用滴下ノズル並びにこれを用いた造粒装
置は以上述べたような構造を有するものであって、以下
このものの作動状ffについて説明する。まず熔解槽2
でアルギン酸ナトリウム水溶液を作成し、この中に必要
量の脱臭微粉末剤を混合し攪拌する。次にこの混合液を
混合液供給管11を介してタンク10に供給する。この
ようにすれば混合液は各ノズル14から液滴となって造
粒槽13内に滴下し、造粒槽13内の分散媒たる塩化カ
ルシウム分と反応して液滴の表面ないしその内部に水に
不溶のアルギン酸カルシウムの層が形成されて粒剤りと
なる。尚、分散媒を酸とした場合には、液滴の表面ない
しその内部に水に不溶のアルギン酸の層が形成されて粒
剤化するし、分散媒をアルコールとした場合には、アル
コールの脱水作用により水との水和状態が解かれてアル
ギン酸ナトリウム自体が不溶化して粒剤化する。このよ
うにして造られた粒剤りは、塩化カルシウム水溶液と共
に導液管19を通ってコンベヤヘルド20a上に供給さ
れる。The dropping nozzle for granulation and the granulation device using the same according to the present invention have the structure as described above, and the operating state ff of this device will be explained below. First, melting tank 2
A sodium alginate aqueous solution is prepared, and the required amount of deodorizing fine powder is mixed therein and stirred. Next, this mixed liquid is supplied to the tank 10 via the mixed liquid supply pipe 11. In this way, the mixed liquid drops into the granulation tank 13 as droplets from each nozzle 14, reacts with calcium chloride as a dispersion medium in the granulation tank 13, and forms a droplet on the surface or inside of the droplet. A layer of water-insoluble calcium alginate is formed to form granules. When the dispersion medium is an acid, a layer of water-insoluble alginic acid is formed on the surface or inside of the droplets to form granules, and when the dispersion medium is alcohol, the alcohol is dehydrated. Due to the action, the hydration state with water is released, and the sodium alginate itself becomes insolubilized and becomes granules. The thus produced granules are supplied onto the conveyor heald 20a through the liquid conduit 19 together with the calcium chloride aqueous solution.
コンヘヤベルト20aでは、粒剤りのみがコンベヤ装置
) 2Oa上に残り、塩化カルシウム、塩化ナトリウム
を熔解した水溶液は塩化カルシウム水溶液層24に落下
する。尚、塩化カルシウム水溶液N24に落下した水溶
液中の塩化カルシウム分は、分離膜26を透過してリタ
ーン管28を通っ5
て造粒槽13へ回収される。また粒剤りはその後コンベ
ヤ装置20により移送され、途中シャワー装置22.2
3により塩化カルシウム分が洗い流された後、乾燥工程
に移送し、ここで乾燥がなされることにより脱臭粒剤が
得られる。In the conveyor belt 20a, only the granules remain on the conveyor device 2Oa, and the aqueous solution in which calcium chloride and sodium chloride are dissolved falls into the calcium chloride aqueous solution layer 24. Incidentally, the calcium chloride component in the aqueous solution that has fallen into the aqueous calcium chloride solution N24 permeates through the separation membrane 26, passes through the return pipe 28, and is recovered into the granulation tank 13. Further, the granules are then transferred by the conveyor device 20, and on the way the shower device 22.2
After the calcium chloride component is washed away in Step 3, the pellets are transferred to a drying step, where they are dried to obtain deodorized granules.
(発明の効果)
本発明では、ノズル14か細い線棒16を有し、この線
棒16は管体15の端部より延長形成した滴下部16a
を有するから、液滴を速い間隔で滴下することができ、
製造のスピードアンプを図ることができる。(Effects of the Invention) In the present invention, the nozzle 14 has a thin wire rod 16, and this wire rod 16 has a dripping portion 16a extending from the end of the tube body 15.
Because it has, droplets can be dropped at quick intervals,
Manufacturing speed can be increased.
また線棒16における滴下部16aを垂直方向に対して
斜めに形成させれば、滴下を一層速めることができるた
め更に製造効率が上がる。Furthermore, if the dripping portion 16a of the wire rod 16 is formed obliquely with respect to the vertical direction, the dropping can be made even faster, which further increases manufacturing efficiency.
更に線棒16の滴下部16aに粒径調節部17を設けれ
ば、この粒径調節部17の径寸法を変えることにより比
較的大きな径の粒剤りを製造することができ、またその
径寸法の調節も容易にできる。Furthermore, if a particle size adjustment part 17 is provided in the dripping part 16a of the wire rod 16, by changing the diameter of this particle size adjustment part 17, it is possible to manufacture granules with a relatively large diameter. Dimensions can also be easily adjusted.
更にまた線棒16の滴下部16aと造粒槽13にお6
ける分散媒の液面との距離を変えることができるように
すれば、例えばこの距離を長くすることより、初めは流
体が滴下部16aから連続的に流れている場合でも、落
下中に流体が加速して、表面張力の関係から造粒槽13
に落下する時点では液滴状態となるようにすることがで
きる。また落下距離を長くして充分液滴を加速すれば、
着流時にその衝撃で液滴が大小複数に分割して種々の大
きさの粒剤りができる。このようにしてできた種々の大
きさの粒剤りを分級すれば、ノズルから滴下する方法で
は得られないような小さな径の粒剤を製造することがで
きる。また例えば大きな径寸法の液滴を落下させる場合
には造粒槽■3内の分散媒との衝突時に液滴が崩れない
ようにこの距離を短くすればよい。Furthermore, if it is possible to change the distance between the dripping part 16a of the wire rod 16 and the liquid level of the dispersion medium in the granulation tank 13, for example, by increasing this distance, the fluid will initially drop. Even when the fluid is flowing continuously from the part 16a, the fluid accelerates while falling, and due to surface tension, the fluid flows into the granulation tank 13.
It can be made to be in a droplet state at the time it falls. Also, if the droplet is accelerated enough by increasing the falling distance,
When the droplet lands on the water, the impact splits the droplet into multiple sizes, creating granules of various sizes. By classifying the granules of various sizes thus produced, it is possible to produce granules with small diameters that cannot be obtained by dropping from a nozzle. For example, when droplets with a large diameter are dropped, this distance may be shortened to prevent the droplets from collapsing upon collision with the dispersion medium in the granulation tank 3.
第1図は本発明の造粒装置を適用した脱臭粒剤の製造ラ
インを示す側面図、第2図は線棒における滴下部の種々
の実施例を示す縦断側面図、第3図は同上化の実施例を
示す透視斜視図である。
l ;
2 ;
3 ;
4 ;
6 ;
7 ;
10;
11 :
13;
14 ;
15;
16;
6a
17;
18;
19;
20;
0a
製造ライン
溶解槽
造粒装置
洗浄装置
ホモミキサ
ホッパ
タンク
混合液供給管
造粒槽
ノズル
管体
線棒
;滴下部
粒径調節部
流出管
導液管
コンベヤ装置
;コンヘヤベルト
20b;駆動プーリ
20C;従動プーリ
21;液槽
22.23;シャワー装置
24;塩化カルシウム水溶液槽
25;水槽
26;分離膜
27;蓋
28;リターン管
29;洗浄水受部
D;粒剤
M;モータ
PL、、p、、、P3 ;ポンプFig. 1 is a side view showing a production line for deodorizing granules using the granulation device of the present invention, Fig. 2 is a vertical side view showing various embodiments of the dripping part in a wire rod, and Fig. 3 is the same as above. FIG. 1; 2; 3; 4; 6; 7; 10; 11: 13; 14; 15; 16; 6a 17; 18; 19; Pipe granulation tank nozzle pipe body wire rod; dripping part particle size adjustment part outflow pipe liquid conduit pipe conveyor device; conveyor belt 20b; drive pulley 20C; driven pulley 21; liquid tank 22, 23; shower device 24; calcium chloride aqueous solution tank 25 Water tank 26; Separation membrane 27; Lid 28; Return pipe 29; Cleaning water receiver D; Granules M; Motor PL, p, P3; Pump
Claims (4)
粒槽内の分散媒中にタンク内の液体を滴下させ、前記分
散媒の成分と前記液体との間の反応により前記分散媒に
不溶となる粒剤を製造する装置において、前記ノズルは
管体と細い線体とを有し、この線体は管体の端部より延
長形成した滴下部を有することを特徴とする造粒用滴下
ノズル。(1) The liquid in the tank is dropped from a nozzle provided in the tank into the dispersion medium in the granulation tank provided below the tank, and the liquid is insoluble in the dispersion medium due to a reaction between the components of the dispersion medium and the liquid. In the apparatus for producing granules, the nozzle has a tube body and a thin wire body, and the wire body has a dripping part extending from an end of the tube body. nozzle.
されていることを特徴とする請求項1記載の造粒用滴下
ノズル。(2) The dropping nozzle for granulation according to claim 1, wherein the dropping portion of the wire body is formed obliquely with respect to the vertical direction.
した粒径調節部を有することを特徴とする請求項1また
は2記載の造粒用滴下ノズル。(3) The dropping nozzle for granulation according to claim 1 or 2, characterized in that the dropping portion of the wire body has a particle size adjusting part in which the wire body is formed into a substantially annular shape.
液面との距離を変えることができることを特徴とする請
求項1、2または3記載の造粒用滴下ノズルを用いた造
粒装置。(4) The granulation dripping nozzle according to claim 1, 2 or 3, characterized in that the distance between the dripping part of the wire body and the liquid level of the dispersion medium in the granulation tank can be changed. Grain device.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP34354189A JPH03202138A (en) | 1989-12-27 | 1989-12-27 | Granulating dripping nozzle and granulator using the same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP34354189A JPH03202138A (en) | 1989-12-27 | 1989-12-27 | Granulating dripping nozzle and granulator using the same |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH03202138A true JPH03202138A (en) | 1991-09-03 |
Family
ID=18362318
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP34354189A Pending JPH03202138A (en) | 1989-12-27 | 1989-12-27 | Granulating dripping nozzle and granulator using the same |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH03202138A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2814460A1 (en) * | 1999-03-31 | 2002-03-29 | Japan Atomic Energy Res Inst | Manufacturing lithium titanate micro sintering grain, involves dispersing lithium, titanium in an aqueous binder solution, dropping liquid in bath containing polyvalent metal, drying grains, calcinating, sintering |
JP2012176374A (en) * | 2011-02-28 | 2012-09-13 | Univ Of Tokyo | Apparatus and method of gelling liquid |
-
1989
- 1989-12-27 JP JP34354189A patent/JPH03202138A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2814460A1 (en) * | 1999-03-31 | 2002-03-29 | Japan Atomic Energy Res Inst | Manufacturing lithium titanate micro sintering grain, involves dispersing lithium, titanium in an aqueous binder solution, dropping liquid in bath containing polyvalent metal, drying grains, calcinating, sintering |
JP2012176374A (en) * | 2011-02-28 | 2012-09-13 | Univ Of Tokyo | Apparatus and method of gelling liquid |
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