JP2001017857A - Spray pyrolytic apparatus - Google Patents
Spray pyrolytic apparatusInfo
- Publication number
- JP2001017857A JP2001017857A JP11191273A JP19127399A JP2001017857A JP 2001017857 A JP2001017857 A JP 2001017857A JP 11191273 A JP11191273 A JP 11191273A JP 19127399 A JP19127399 A JP 19127399A JP 2001017857 A JP2001017857 A JP 2001017857A
- Authority
- JP
- Japan
- Prior art keywords
- burner
- spray nozzle
- spray
- pyrolysis apparatus
- spray pyrolysis
- 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
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、噴霧熱分解装置に
関し、更に詳細には、高純度、組成均一性及び微細で反
応活性が高い金属酸化物又は金属非酸化物の粉体を合成
するために用いる噴霧熱分解装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spray pyrolysis apparatus, and more particularly, to a method for synthesizing a metal oxide or non-metal oxide powder having high purity, uniform composition, and high reactivity. The present invention relates to a spray pyrolysis apparatus used for the above.
【０００２】[0002]
【従来の技術】ファインセラミックスのよりファインな
性質は、原料の純度、化学組成、微細な組織の制御によ
り初めて得ることができる。このとき、製造プロセス、
特に原料の合成法が製品開発の鍵を握ることも少なくな
い。高純度かつ化合物・混合物の場合の組成の高均一
化、また微細で反応活性が高いことが原料粉体に共通し
て求められる。2. Description of the Related Art Finer properties of fine ceramics can be obtained only by controlling the purity, chemical composition and fine structure of raw materials. At this time, the manufacturing process,
In particular, the synthesis of raw materials often holds the key to product development. It is commonly required that the raw material powders have high purity, high uniformity of the composition in the case of compounds and mixtures, and fine and high reaction activity.
【０００３】このような性質を有するセラミックス粉体
を得るための合成方法は、種々考案されているが、微
細、高純度、高組成均一性の要求を満たすための合成方
法として、気相や液相を経由した合成法がある。従来の
固相を用いた場合と異なり、液相を経由した合成法は、
各構成元素が原子オーダーで混合していると考えられて
いる。液相法は、溶媒中に存在する金属元素を水酸化
物、硝酸塩、硫酸塩、炭酸塩などにして析出させ、これ
を熱分解して酸化物微粉末を合成する方法である。ま
た、液相法は、金属塩の析出方法や熱分解の方法の違い
により、多くの方法が開発されており、特に、噴霧熱分
解法が注目されている。[0003] Various synthesis methods have been devised for obtaining ceramic powders having such properties. However, as a synthesis method for satisfying the requirements of fineness, high purity, and high composition uniformity, gas phase or liquid synthesis is required. There is a synthesis method via a phase. Unlike the case using a conventional solid phase, the synthesis method via the liquid phase is
It is considered that each constituent element is mixed in the atomic order. The liquid phase method is a method in which a metal element existing in a solvent is precipitated as a hydroxide, a nitrate, a sulfate, a carbonate, or the like, and is thermally decomposed to synthesize an oxide fine powder. In addition, many methods have been developed for the liquid phase method due to differences in the method of depositing a metal salt and the method of thermal decomposition. In particular, the spray pyrolysis method has attracted attention.
【０００４】噴霧熱分解法は、金属塩溶液を、熱分解が
起こる温度以上の高温に保持した雰囲気中に微細な液滴
として噴霧し、極めて短時間で溶媒の蒸発、金属塩の析
出、その熱分解を行い、酸化物（非酸化物も可能）微粉
末を合成する方法である。この方法による粉末は、原子
スケールでの組成均一性や微量成分元素の均一分散性の
利点を有しており、分散性のよい微粒子が得られる。そ
して、たとえ乾燥、熱分解による組成の不均一性があっ
ても、それは分割された微粒子内に物理的に限定される
ので、成分の再配列による組成分離が少ない。また、噴
霧された個々の溶液に含まれる成分の割合は、調整され
た溶液のそれに極めて近いため、成分の分散を厳密に制
御することができる。[0004] In the spray pyrolysis method, a metal salt solution is sprayed as fine droplets in an atmosphere maintained at a temperature higher than the temperature at which thermal decomposition occurs, and evaporation of a solvent, precipitation of a metal salt, This is a method of synthesizing an oxide (non-oxide is also possible) fine powder by performing thermal decomposition. The powder obtained by this method has advantages of composition uniformity on an atomic scale and uniform dispersibility of a trace component element, and fine particles having good dispersibility can be obtained. And even if there is a non-uniformity of the composition due to drying and thermal decomposition, it is physically limited within the divided fine particles, so that there is little composition separation due to rearrangement of components. Further, the proportion of the components contained in each of the sprayed solutions is very close to that of the adjusted solution, so that the dispersion of the components can be strictly controlled.
【０００５】以上説明したような噴霧熱分解法を行うた
め、例えば、図５に示す噴霧熱分解装置が現在用いられ
ている。このタイプの装置は、反応室２の外側に周設さ
れた電気炉６０を用いて、５００〜１３００℃の高温雰
囲気を反応室２内に保持しつつ、噴霧ノズル１０で噴霧
された原液を極めて短時間に固化後熱分解させることに
より、製品である微粉末を合成するものである。[0005] In order to perform the spray pyrolysis method as described above, for example, a spray pyrolysis apparatus shown in Fig. 5 is currently used. This type of apparatus uses an electric furnace 60 provided around the outside of the reaction chamber 2, while maintaining a high-temperature atmosphere of 500 to 1300 ° C. in the reaction chamber 2, and extremely removing the stock solution sprayed by the spray nozzle 10. By solidifying in a short time and then pyrolyzing, a fine powder as a product is synthesized.
【０００６】しかしながら、上記に示す噴霧熱分解装置
は、反応室２の側壁の輻射熱を用いた間接加熱であるた
め、反応室２内の高温雰囲気の温度が、反応室２の材質
の耐久温度に左右されてしまうだけでなく、熱分解効率
も悪いため、ランニングコストがかさむという問題点が
あった。However, in the spray pyrolysis apparatus described above, since the indirect heating using the radiant heat of the side wall of the reaction chamber 2, the temperature of the high-temperature atmosphere in the reaction chamber 2 is reduced to the endurance temperature of the material of the reaction chamber 2. In addition to being influenced by the influence, there is a problem that the running cost is increased due to poor thermal decomposition efficiency.
【０００７】[0007]
【発明が解決しようとする課題】本発明は、このような
従来技術の有する課題に鑑みてなされたものであり、噴
霧ノズルで噴霧された原液を、バーナーの火炎で直接、
固化後熱分解することができ、噴霧された原液の熱分解
効率を向上させるとともに、熱分解時間を大幅に短縮す
ることができる噴霧熱分解装置を提供することにある。DISCLOSURE OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art, and a stock solution sprayed by a spray nozzle is directly blown by a flame of a burner.
It is an object of the present invention to provide a spray pyrolysis apparatus that can be pyrolyzed after solidification, improves the thermal decomposition efficiency of a sprayed stock solution, and can significantly reduce the pyrolysis time.
【０００８】[0008]
【課題を解決するための手段】すなわち、本発明によれ
ば、原液を反応室内に噴霧するとともに、噴霧された原
液を高温雰囲気中で固化後熱分解し、得られた粉体を反
応室から取り出す噴霧熱分解装置であって、該反応室内
の上部又は下部の中央に設けられた噴霧ノズルと、該噴
霧ノズルに周設されたバーナーと、を備えたことを特徴
とする噴霧熱分解装置が提供される。That is, according to the present invention, a stock solution is sprayed into a reaction chamber, and the sprayed stock solution is solidified in a high-temperature atmosphere and then thermally decomposed, and the obtained powder is discharged from the reaction chamber. A spray pyrolysis apparatus to be taken out, comprising: a spray nozzle provided at the center of an upper part or a lower part in the reaction chamber; and a burner provided around the spray nozzle. Provided.
【０００９】また、本発明によれば、原液を反応室内に
噴霧するとともに、噴霧された原液を高温雰囲気中で固
化後熱分解し、得られた粉体を反応室から取り出す噴霧
熱分解装置であって、該反応室内の上部又は下部の中央
に設けられた噴霧ノズルと、該噴霧ノズルに周設された
バーナーと、該バーナーを包囲するように配設された反
応管と、該反応管を冷却する手段と、を備えたことを特
徴とする噴霧熱分解装置が提供される。このとき、反応
管を冷却する手段は、反応管の外壁面に冷却用ガスを接
触させ冷却する構造であることが好ましい。According to the present invention, there is provided a spray pyrolysis apparatus for spraying a stock solution into a reaction chamber, solidifying the sprayed stock solution in a high-temperature atmosphere and then thermally decomposing the same, and taking out the obtained powder from the reaction chamber. A spray nozzle provided at the center of the upper or lower part of the reaction chamber, a burner provided around the spray nozzle, a reaction tube disposed to surround the burner, and a reaction tube. And a cooling means. At this time, the means for cooling the reaction tube preferably has a structure for cooling by bringing a cooling gas into contact with the outer wall surface of the reaction tube.
【００１０】また、本発明では、噴霧ノズルが、バーナ
ーと一体化されていることが好ましい。In the present invention, the spray nozzle is preferably integrated with the burner.
【００１１】更に、本発明では、噴霧ノズルが二流体噴
霧ノズル又は圧力噴霧ノズルであり、バーナーが拡散型
バーナーであることが好ましい。Further, in the present invention, the spray nozzle is preferably a two-fluid spray nozzle or a pressure spray nozzle, and the burner is preferably a diffusion burner.
【００１２】[0012]
【発明の実施の形態】本発明の噴霧熱分解装置は、原液
を反応室内に噴霧するとともに、噴霧された原液を高温
雰囲気中で固化後熱分解し、得られた粉体を反応室から
取り出す噴霧熱分解装置であって、反応室内の上部又は
下部の中央に設けられた噴霧ノズルと、噴霧ノズルに周
設されたバーナーとを備えてなるものである。BEST MODE FOR CARRYING OUT THE INVENTION A spray pyrolysis apparatus of the present invention sprays a stock solution into a reaction chamber, solidifies the sprayed stock solution in a high-temperature atmosphere and then thermally decomposes, and takes out the obtained powder from the reaction chamber. A spray pyrolysis apparatus comprising a spray nozzle provided at the center of an upper portion or a lower portion in a reaction chamber, and a burner provided around the spray nozzle.
【００１３】上記のように、本発明の噴霧熱分解装置
は、噴霧ノズルで噴霧された原液を、バーナーの火炎で
直接、固化後熱分解することができ、噴霧された原液の
熱分解効率を向上させるとともに、熱分解時間を大幅に
短縮することができる。[0013] As described above, the spray pyrolysis apparatus of the present invention can directly pyrolyze a stock solution sprayed by a spray nozzle after solidifying with a flame of a burner, and improve the thermal decomposition efficiency of the sprayed stock solution. The thermal decomposition time can be greatly reduced while improving the temperature.
【００１４】以下、本発明を図面に基づいて更に詳細に
説明する。図１は、本発明の噴霧熱分解装置の一例の要
部を示す説明図である。図１に示す噴霧熱分解装置は、
反応室２内の下部の中央に設けられた噴霧ノズル１０
と、噴霧ノズル１０に周設されたバーナー２０とを備え
てなるものである。Hereinafter, the present invention will be described in more detail with reference to the drawings. FIG. 1 is an explanatory diagram showing a main part of an example of the spray pyrolysis apparatus of the present invention. The spray pyrolysis apparatus shown in FIG.
Spray nozzle 10 provided at the center of the lower part in reaction chamber 2
And a burner 20 provided around the spray nozzle 10.
【００１５】また、本発明の噴霧熱分解装置の他の例
は、図２に示すように、反応室２内の下部の中央に設け
られた少なくとも１つの噴霧ノズル１０と、噴霧ノズル
１０に周設されたバーナー２０と、バーナー２０を包囲
するように配設された反応管４と、反応管を冷却する手
段とを備えてなるものである。尚、本発明で用いる反応
管４は、バーナーの火炎を安定に保持させる保炎管の機
能も有している。Further, as shown in FIG. 2, another example of the spray pyrolysis apparatus of the present invention has at least one spray nozzle 10 provided at the center of the lower part in the reaction chamber 2, It comprises a burner 20 provided, a reaction tube 4 arranged to surround the burner 20, and a means for cooling the reaction tube. The reaction tube 4 used in the present invention also has a function of a flame holding tube for stably holding the flame of the burner.
【００１６】図１〜２に示す噴霧熱分解装置は、バーナ
ー２０の中心部から噴霧された原液が、バーナー２０の
火炎の内部へ導入されるため、従来の装置（図５参照）
と比較して、噴霧された原液をより高温な雰囲気（１５
００℃以上）に導入することができる。以上のことか
ら、図１〜２に示す噴霧熱分解装置は、噴霧された原液
の熱分解効率を向上させるとともに、熱分解時間を大幅
に短縮することができ、装置も小型化することができ
る。In the spray pyrolysis apparatus shown in FIGS. 1 and 2, the undiluted solution sprayed from the center of the burner 20 is introduced into the flame of the burner 20.
Compared to the sprayed stock solution in a higher temperature atmosphere (15
(00 ° C. or more). From the above, the spray pyrolysis apparatus shown in FIGS. 1 and 2 can improve the pyrolysis efficiency of the sprayed stock solution, greatly reduce the pyrolysis time, and can also reduce the size of the apparatus. .
【００１７】また、図２に示す装置には、反応管４の外
壁面に冷却用ガスを接触させて冷却する構造を有する反
応管を冷却する手段が設けられている。具体的には、図
２に示すように、チャンバー５の側壁下部に配設された
冷却用ガス導入口８から、チャンバーと反応管との間隙
部６に冷却用ガスを導入するものである。これにより、
反応管内に高温な雰囲気（１５００℃以上）を保持する
場合であっても、反応管を十分冷却することができるた
め、反応管の寿命を大幅に向上することができる。The apparatus shown in FIG. 2 is provided with means for cooling a reaction tube having a structure for cooling by bringing a cooling gas into contact with the outer wall surface of the reaction tube 4. More specifically, as shown in FIG. 2, a cooling gas is introduced into a gap 6 between the chamber and the reaction tube from a cooling gas inlet 8 provided at a lower portion of a side wall of the chamber 5. This allows
Even when a high-temperature atmosphere (1500 ° C. or higher) is maintained in the reaction tube, the reaction tube can be sufficiently cooled, so that the life of the reaction tube can be significantly improved.
【００１８】本発明で用いる冷却用ガスは、噴霧される
原液により異なるが、一般に空気、Ｎ2ガス、Ａｒガス
等であることが好ましい。また、冷却用ガスの温度は、
４０〜１２０℃であることが好ましい。The cooling gas used in the present invention varies depending on the stock solution to be sprayed, but is generally preferably air, N 2 gas, Ar gas or the like. The temperature of the cooling gas is
The temperature is preferably from 40 to 120 ° C.
【００１９】ここで、本発明で用いる噴霧ノズル１０
は、バーナーの安定燃焼を阻害しないように、二流体噴
霧ノズル（高速過熱蒸気流あるいは高圧空気流の剪断力
により液体を微粒化するノズル）又は圧力噴霧ノズル
（液体を加圧して、噴出口より高速で噴出させて微粒化
するノズル）であることが好ましい。尚、本発明で用い
る噴霧ノズルは、図１〜２に示すように、バーナーと一
体化された構造（バーナー２０の中心部に噴霧ノズル１
０を配設したもの）であることが好ましい。Here, the spray nozzle 10 used in the present invention is used.
The two-fluid spray nozzle (nozzle that atomizes the liquid by the shear force of a high-speed superheated steam flow or high-pressure air flow) or the pressure spray nozzle (pressurizes the liquid to prevent the burner from burning (A nozzle that spouts at high speed and atomizes). The spray nozzle used in the present invention has a structure integrated with a burner as shown in FIGS.
0 is disposed).
【００２０】また、本発明で用いるバーナー２０は、バ
ーナーの火炎の内部に原液が噴霧されるため、広い範囲
の燃焼条件下で燃焼を実現することができる拡散型バー
ナー（気体燃焼装置）であることが好ましい。ここで、
拡散型バーナーは、図２に示すように、燃料ガス流路２
２と空気流路２４から供給された燃料ガスと空気をバー
ナー２０の先端から拡散混合させながら、燃焼を進行さ
せるものである。また、上記拡散型バーナーにおいて
は、火炎の保持とともに、燃料ガスと空気との良好な乱
流混合を実現することが必要であるため、燃焼用空気に
旋回を与えて反応管に吹き込む旋回流バーナーであるこ
とが好ましい。尚、本発明で用いるバーナーは、空気の
代わりに、酸素を用いることにより、バーナーの温度を
１８００℃以上にすることができる。Further, the burner 20 used in the present invention is a diffusion type burner (gas combustion device) that can realize combustion under a wide range of combustion conditions because the stock solution is sprayed into the flame of the burner. Is preferred. here,
As shown in FIG. 2, the diffusion type burner has a fuel gas flow path 2.
The combustion progresses while diffusing and mixing the fuel gas and air supplied from the burner 20 with the fuel gas 2 and the air channel 24. Further, in the diffusion type burner, since it is necessary to realize good turbulent mixing of the fuel gas and the air together with holding the flame, the swirling flow burner which swirls the combustion air and blows it into the reaction tube. It is preferred that It should be noted that the burner used in the present invention can raise the temperature of the burner to 1800 ° C. or higher by using oxygen instead of air.
【００２１】更に、本発明で用いる反応管４の材質は、
バーナーの火炎の影響を受けるため、高耐熱性を有する
アルミナ、ムライト、石英等のセラミックスであること
が好ましいが、対象となる微粉末の合成条件により、ス
テンレス、ハステロイ、高Ｎｉ耐熱合金等の金属であっ
てもよい。Further, the material of the reaction tube 4 used in the present invention is as follows.
Since it is affected by the flame of the burner, ceramics such as alumina, mullite, and quartz having high heat resistance are preferable. However, depending on the conditions for synthesizing the target fine powder, metals such as stainless steel, Hastelloy, and high Ni heat-resistant alloys may be used. It may be.
【００２２】次に、本発明の噴霧熱分解装置について、
図３〜４に基づいて更に詳細に説明する。図３に示す噴
霧熱分解装置は、上端部が円錐状の略円筒状に形成され
たチャンバー５と、チャンバー５内の下部の中央に設け
られた噴霧ノズル１０と、噴霧ノズル１０に周設された
バーナー２０と、バーナー２０を包囲するように配設さ
れた反応管４と、チャンバー５内の側壁下部に配設され
た冷却用ガス導入口８と、チャンバー５の上部に配設さ
れた粉体取出し口９を備えてなるものである。ここで、
図３に示す噴霧熱分解装置は、得られる粉体が軽い場合
であっても、反応室内に粉体が滞留することなく、粉体
を確実に取り出すことができる。Next, regarding the spray pyrolysis apparatus of the present invention,
This will be described in more detail with reference to FIGS. The spray pyrolysis apparatus shown in FIG. 3 includes a chamber 5 having an upper end formed in a substantially cylindrical shape having a conical shape, a spray nozzle 10 provided at the center of a lower portion in the chamber 5, and a spray nozzle 10 provided around the spray nozzle 10. Burner 20, a reaction tube 4 disposed to surround the burner 20, a cooling gas inlet 8 disposed at a lower portion of a side wall in the chamber 5, and a powder disposed at an upper portion of the chamber 5. It is provided with a body outlet 9. here,
The spray pyrolysis apparatus shown in FIG. 3 can reliably remove the powder without staying in the reaction chamber even when the obtained powder is light.
【００２３】また、図４に示す噴霧熱分解装置は、下端
部が逆円錐状の略円筒状に形成されたチャンバー５と、
チャンバー５内の上部の中央に設けられた噴霧ノズル１
０と、噴霧ノズル１０に周設されたバーナー２０と、バ
ーナー２０を包囲するように配設された反応管４と、チ
ャンバー５内の側壁下部に配設された冷却用ガス導入口
８と、チャンバー５の下部に配設された粉体取出し口９
を備えてなるものである。ここで、図４に示す噴霧熱分
解装置は、得られる粉体が重い場合、重力による自然沈
降が十分期待できるため、粉体を確実に取り出すことが
できる。The spray pyrolysis apparatus shown in FIG. 4 has a substantially cylindrical chamber 5 having an inverted conical lower end.
Spray nozzle 1 provided at the center of the upper part in chamber 5
0, a burner 20 provided around the spray nozzle 10, a reaction tube 4 provided to surround the burner 20, and a cooling gas inlet 8 provided at a lower portion of a side wall in the chamber 5. Powder outlet 9 arranged at the bottom of chamber 5
It is provided with. Here, in the spray pyrolysis apparatus shown in FIG. 4, when the obtained powder is heavy, natural sedimentation due to gravity can be sufficiently expected, so that the powder can be reliably taken out.
【００２４】尚、冷却用ガス導入口８からチャンバーと
反応管との間隙部６に導入され冷却用ガスは、反応管４
の外壁面を冷却した後、排ガスとして粉体取出し口８か
ら排気される。また、粉体取出し口９は、熱交換器、冷
却塔等の冷却設備３０、更にサイクロン、バグフィルタ
ー、電気集塵機等の粉体分離捕集設備４０を介在させて
排気ファン５０に接続されている。The cooling gas introduced from the cooling gas inlet 8 into the gap 6 between the chamber and the reaction tube is supplied to the reaction tube 4.
After cooling the outer wall surface, the powder is exhausted from the powder outlet 8 as exhaust gas. The powder outlet 9 is connected to an exhaust fan 50 via a cooling device 30 such as a heat exchanger and a cooling tower, and a powder separating and collecting device 40 such as a cyclone, a bag filter, and an electric dust collector. .
【００２５】噴霧ノズル１０から噴霧された原液は、バ
ーナー２０の火炎と接触することにより、固化後熱分解
され、粉体化される。得られた粉体は、排ガスに同伴さ
れ、粉体取出し口９から粉体を含有した排ガスとして取
り出される。粉体を含有した排ガスは、冷却設備３０で
所定の温度に冷却された後、粉体分離捕集設備４０で排
ガスと粉体とを分離することにより、製品である粉体を
得ることができる。尚、粉体分離捕集設備４０で分離さ
れた排ガスは、排ガス処理設備（図示せず）で環境汚染
物質（ＮＯX等）の除去処理が行われる。The stock solution sprayed from the spray nozzle 10 comes into contact with the flame of the burner 20, is solidified, thermally decomposed, and turned into powder. The obtained powder is accompanied by the exhaust gas, and is extracted from the powder outlet 9 as an exhaust gas containing the powder. The exhaust gas containing the powder is cooled to a predetermined temperature by the cooling equipment 30, and then the exhaust gas and the powder are separated by the powder separation and collection equipment 40, whereby the product powder can be obtained. . Incidentally, the exhaust gas separated in the powder separator collecting equipment 40, removal processing of environmental pollutants in the exhaust gas treatment facility (not shown) (NO X, etc.) are performed.
【００２６】以上、本発明の発明の実施の形態について
説明してきたが、本発明は、これらの実施形態に何等限
定されて解釈されるべきものではなく、本発明の範囲を
逸脱しない限りにおいて、当業者の知識に基づいて種々
の変更、修正、改良等を加え得るものである。Although the embodiments of the present invention have been described above, the present invention should not be construed as being limited to these embodiments, and should not depart from the scope of the present invention. Various changes, modifications, improvements, and the like can be made based on the knowledge of those skilled in the art.
【００２７】[0027]
【実施例】以下、本発明を実施例を用いてさらに詳細に
説明するが、本発明はこれらの実施例に制限されるもの
ではない。 （実施例１〜４）図３に示す噴霧熱分解装置を用いて、
表１に示す実験条件で、噴霧熱分解を行った（実施例１
〜４）。表１に示すように、本発明の噴霧熱分解装置
は、電池材料、フェライト材料、触媒等の微粒子の合成
に好適に適用できることが判明した。EXAMPLES Hereinafter, the present invention will be described in more detail with reference to Examples, but the present invention is not limited to these Examples. (Examples 1 to 4) Using the spray pyrolysis apparatus shown in FIG.
Spray pyrolysis was performed under the experimental conditions shown in Table 1 (Example 1).
4). As shown in Table 1, it was found that the spray pyrolysis apparatus of the present invention can be suitably applied to the synthesis of fine particles such as a battery material, a ferrite material, and a catalyst.
【００２８】[0028]
【表１】 [Table 1]
【００２９】[0029]
【発明の効果】以上説明したように、本発明の噴霧熱分
解装置は、噴霧ノズルで噴霧された原液を、バーナーの
火炎で直接、固化後熱分解することができ、噴霧された
原液の熱分解効率を向上させるとともに、熱分解時間を
大幅に短縮することができる。As described above, the spray pyrolysis apparatus of the present invention can directly pyrolyze the stock solution sprayed by the spray nozzle after solidifying it with the flame of the burner, and then heat the sprayed stock solution. The decomposition efficiency can be improved, and the thermal decomposition time can be significantly reduced.
【図１】 本発明の噴霧熱分解装置の一例の要部を示す
説明図である。FIG. 1 is an explanatory diagram showing a main part of an example of a spray pyrolysis apparatus of the present invention.
【図２】 本発明の噴霧熱分解装置の他の例の要部を示
す説明図である。FIG. 2 is an explanatory view showing a main part of another example of the spray pyrolysis apparatus of the present invention.
【図３】 本発明の噴霧熱分解装置の他の例を示す概略
断面図である。FIG. 3 is a schematic sectional view showing another example of the spray pyrolysis apparatus of the present invention.
【図４】 本発明の噴霧熱分解装置の更に他の例を示す
概略断面図である。FIG. 4 is a schematic sectional view showing still another example of the spray pyrolysis apparatus of the present invention.
【図５】 従来の噴霧熱分解装置の一例を示す概略断面
図である。FIG. 5 is a schematic sectional view showing an example of a conventional spray pyrolysis apparatus.
２…反応室、４…反応管、５…チャンバー、６…チャン
バーと反応管との間隙部、８…冷却用ガス導入口、９…
粉体取出し口、１０…噴霧ノズル、２０…バーナー、２
２…燃料ガス流路、２４…燃焼空気流路、３０…冷却設
備、４０…粉体分離捕集設備、５０…排気ファン、６０
…電気炉。2 ... reaction chamber, 4 ... reaction tube, 5 ... chamber, 6 ... gap between chamber and reaction tube, 8 ... cooling gas inlet, 9 ...
Powder outlet, 10: spray nozzle, 20: burner, 2
2 ... Fuel gas flow path, 24 ... Combustion air flow path, 30 ... Cooling equipment, 40 ... Powder separation and collection equipment, 50 ... Exhaust fan, 60
…Electric furnace.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） // Ｃ０１Ｆ 17/00 Ｃ０１Ｆ 17/00 Ａ ４Ｇ０７６ (72)発明者 相嶋 静夫 神奈川県横浜市都筑区池辺町3847 大川原 化工機株式会社内 Ｆターム(参考） 4F033 AA05 AA13 BA01 BA03 CA01 DA01 EA01 HA05 NA01 4G002 AB02 AE02 AF01 4G004 AA01 CA02 EA02 4G042 DA01 DB35 DC03 DD04 DE04 DE06 DE15 4G075 AA23 AA27 BA05 BD03 BD04 BD13 BD14 BD22 CA02 CA66 DA01 EA01 EA06 EB01 EC01 4G076 AA02 AB04 AB07 BA35 BH01 CA04 DA01 DA07 DA30 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 Identification symbol FI theme coat ゛ (reference) // C01F 17/00 C01F 17/00 A 4G076 (72) Inventor Shizuo Aishima Ikebe-cho, Tsuzuki-ku, Yokohama-shi, Kanagawa 3847 Okawara Kakoki Co., Ltd. EA01 EA06 EB01 EC01 4G076 AA02 AB04 AB07 BA35 BH01 CA04 DA01 DA07 DA30
Claims (9)
霧された原液を高温雰囲気中で固化後熱分解し、得られ
た粉体を反応室から取り出す噴霧熱分解装置であって、 該反応室内の上部又は下部の中央に設けられた噴霧ノズ
ルと、 該噴霧ノズルに周設されたバーナーと、を備えたことを
特徴とする噴霧熱分解装置。1. A spray pyrolysis apparatus for spraying an undiluted solution into a reaction chamber, solidifying the sprayed undiluted solution in a high-temperature atmosphere, and thermally decomposing the undiluted solution, and taking out the obtained powder from the reaction chamber. A spray pyrolysis apparatus comprising: a spray nozzle provided at the center of an upper part or a lower part of a spray nozzle; and a burner provided around the spray nozzle.
いる請求項１に記載の噴霧熱分解装置。2. The spray pyrolysis apparatus according to claim 1, wherein the spray nozzle is integrated with the burner.
力噴霧ノズルである請求項１又は２に記載の噴霧熱分解
装置。3. The spray pyrolysis apparatus according to claim 1, wherein the spray nozzle is a two-fluid spray nozzle or a pressure spray nozzle.
項１〜３のいずれか１項に記載の噴霧熱分解装置。4. The spray pyrolysis apparatus according to claim 1, wherein the burner is a diffusion type burner.
霧された原液を高温雰囲気中で固化後熱分解し、得られ
た粉体を反応室から取り出す噴霧熱分解装置であって、 該反応室内の上部又は下部の中央に設けられた噴霧ノズ
ルと、 該噴霧ノズルに周設されたバーナーと、 該バーナーを包囲するように配設された反応管と、 該反応管を冷却する手段と、を備えたことを特徴とする
噴霧熱分解装置。5. A spray pyrolysis apparatus for spraying an undiluted solution into a reaction chamber, solidifying the sprayed undiluted solution in a high-temperature atmosphere, and thermally decomposing the undiluted solution, and taking out the obtained powder from the reaction chamber. A spray nozzle provided at the center of the upper part or the lower part, a burner provided around the spray nozzle, a reaction tube arranged to surround the burner, and a means for cooling the reaction tube. A spray pyrolysis apparatus, comprising:
いる請求項５に記載の噴霧熱分解装置。6. The spray pyrolysis apparatus according to claim 5, wherein the spray nozzle is integrated with the burner.
面に冷却用ガスを接触させ冷却する構造である請求項５
又は６に記載の噴霧熱分解装置。7. A cooling means for cooling a reaction tube by bringing a cooling gas into contact with an outer wall surface of the reaction tube.
Or a spray pyrolysis apparatus according to 6.
力噴霧ノズルである請求項５〜７のいずれか１項に記載
の噴霧熱分解装置。8. The spray pyrolysis apparatus according to claim 5, wherein the spray nozzle is a two-fluid spray nozzle or a pressure spray nozzle.
項５〜８のいずれか１項に記載の噴霧熱分解装置。9. The spray pyrolysis apparatus according to claim 5, wherein the burner is a diffusion type burner.
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| JP19127399A JP4516642B2 (en) | 1999-07-06 | 1999-07-06 | Spray pyrolysis equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006248872A (en) * | 2005-03-14 | 2006-09-21 | Nisshin Ferrite Kk | Metallic compound powder and its production method |
| JP2006247446A (en) * | 2005-03-08 | 2006-09-21 | Nisshin Seifun Group Inc | Method and apparatus for manufacturing fine particles |
| US7200649B1 (en) | 2001-09-27 | 2007-04-03 | Rockwell Automation Technologies, Inc. | Adaptive method for duplicative IP address detection |
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| JP2013017957A (en) * | 2011-07-12 | 2013-01-31 | Furukawa Electric Co Ltd:The | Apparatus and method for manufacturing fine particle |
| US9086656B2 (en) | 2013-06-26 | 2015-07-21 | Fuji Xerox Co., Ltd. | Image forming apparatus and developing device |
| JP2018502808A (en) * | 2014-11-25 | 2018-02-01 | エボニック デグサ ゲーエムベーハーＥｖｏｎｉｋ Ｄｅｇｕｓｓａ ＧｍｂＨ | Method for producing metal oxide by spray pyrolysis |
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| JP7007826B2 (en) | 2017-07-26 | 2022-02-10 | 太平洋セメント株式会社 | Spray pyrolyzer |
| KR101956826B1 (en) * | 2017-09-11 | 2019-03-12 | 한국화학연구원 | Synthesis Method for Perfluoro-Sulfonylfluoride Ehtyl-Propyl-Vinyl Ether and Apparatus for the Synthesis Method |
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