JPH024192A - Calcinating furnace - Google Patents
Calcinating furnaceInfo
- Publication number
- JPH024192A JPH024192A JP26033088A JP26033088A JPH024192A JP H024192 A JPH024192 A JP H024192A JP 26033088 A JP26033088 A JP 26033088A JP 26033088 A JP26033088 A JP 26033088A JP H024192 A JPH024192 A JP H024192A
- Authority
- JP
- Japan
- Prior art keywords
- furnace body
- ceramic raw
- raw material
- furnace
- rotating
- 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
- 238000001354 calcination Methods 0.000 title claims abstract description 27
- 239000000919 ceramic Substances 0.000 claims abstract description 57
- 239000002994 raw material Substances 0.000 claims description 52
- 238000010438 heat treatment Methods 0.000 claims description 6
- 238000003860 storage Methods 0.000 claims description 6
- 230000002194 synthesizing effect Effects 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 9
- 239000000463 material Substances 0.000 abstract description 6
- 238000007599 discharging Methods 0.000 abstract 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000003786 synthesis reaction Methods 0.000 description 3
- 239000003985 ceramic capacitor Substances 0.000 description 2
- 239000003989 dielectric material Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000003779 heat-resistant material Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000011120 plywood Substances 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
Landscapes
- Tunnel Furnaces (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明はセラミックコンデンサのセラミック誘電体や圧
電素子の圧電基板等のセラミック製品の製造に使用され
るセラミック原料の仮焼合成に使用される仮焼炉に関す
る。[Detailed Description of the Invention] [Industrial Application Field] The present invention is directed to a temporary sintering method used in the calcination synthesis of ceramic raw materials used in the manufacture of ceramic products such as ceramic dielectrics for ceramic capacitors and piezoelectric substrates for piezoelectric elements. Regarding kilns.
［従来の技術］
一般に、セラミックコンデンサのセラミック誘電体や圧
電素子の圧電基板等の製造に際して、セラミック原料粉
末をそのまま成形した後、本焼成して磁器化させると、
本焼成中の寸法変化が大きいので、セラミック原料粉末
はいったん仮焼炉で仮焼して粗粉砕したものが使用され
る。[Prior Art] Generally, when manufacturing ceramic dielectrics for ceramic capacitors, piezoelectric substrates for piezoelectric elements, etc., ceramic raw material powder is molded as it is and then fired to form porcelain.
Since the dimensional change during main firing is large, the ceramic raw material powder used is one that has been calcined in a calcining furnace and then coarsely ground.
従来、セラミック原料の仮焼に使用される仮焼炉として
は、第８図に示すようなチューブ式キルンや第９図に示
すようなトンネル炉、あるいは第１θ図に示すような竪
型炉が使用される。Conventionally, the calcining furnace used for calcining ceramic raw materials has been a tube kiln as shown in Figure 8, a tunnel furnace as shown in Figure 9, or a vertical furnace as shown in Figure 1θ. used.
上記チューブ式キルンは、第８図に示すように、円筒形
状のキルン１が傾斜して回転可能に配置され、その外側
にヒータ２を配置したものである。As shown in FIG. 8, the tube-type kiln has a cylindrical kiln 1 arranged rotatably at an angle, and a heater 2 arranged outside the kiln.
上記キルンｌの一端１ａから投入されたセラミック原料
は、上記キルンｌが図示しない駆動装置で矢印Ａ、で示
すように回転することによって、キルンｌ内をその他端
１ｂに向かって移動し、その過程で上記キルンｌの外側
に配置されたヒータ２により加熱され、仮焼される。The ceramic raw material inputted from one end 1a of the kiln l moves within the kiln l toward the other end 1b as the kiln l rotates as shown by arrow A by a drive device (not shown), and in the process Then, the material is heated by a heater 2 placed outside the kiln 1 and calcined.
また、上記トンネル炉は、第９図に示すように、ベース
３上にトンネル状の炉体４が水平に配置されたものであ
る。セラミック原料は匣５内に収容される。そして、こ
の匣５は、合板６上に多段に積み重ねられ、炉体４の入
ロアの外部から炉体４の内部に、ブツシャ８により矢印
Ａ、で示す向きに自動的に順次ブツシュされる。これに
より、６匣５は、炉体４内を出口９に向かって順次移動
し、その過程で炉体４内に配置されたヒータ（図示せず
。）により加熱され仮焼され、上記出口９から取り出さ
れる。The tunnel furnace has a tunnel-shaped furnace body 4 placed horizontally on a base 3, as shown in FIG. The ceramic raw material is contained in the box 5. The boxes 5 are stacked in multiple stages on a plywood board 6, and are automatically and sequentially bushed from the outside of the input lower of the furnace body 4 into the inside of the furnace body 4 in the direction shown by arrow A by a busher 8. As a result, the six boxes 5 sequentially move within the furnace body 4 toward the outlet 9, and in the process are heated and calcined by a heater (not shown) disposed within the furnace body 4, and are heated and calcined at the outlet 9. taken from.
さらに、上記竪型炉は、第１Ｏ図に示すように、縦積み
のマツフル１３を有するもので、上部にセラミック原料
の投入口１２を有する。このマツフル１３に投入される
セラミック原料１１は予め造粒されており、マツフル１
３の下端に設けられ、（１）、 （ＩＩ）のように揺動
する揺動板１４が動かされて徐々にマツフル１３内を下
方に落下し、その過程で上記マツフル１３の外側に配置
されたヒータ１５により加熱され、仮焼される。Furthermore, as shown in FIG. 1O, the vertical furnace has vertically stacked matsufuru 13, and has an inlet 12 for ceramic raw material at the top. The ceramic raw material 11 to be put into this Matsufuru 13 is granulated in advance, and
The rocking plate 14, which is provided at the lower end of 3 and swings as shown in (1) and (II), is moved and gradually falls downward inside the Matsuful 13, and in the process, the rocking plate 14 is placed outside the Matsuful 13. It is heated by the heater 15 and calcined.
［発明が解決しようとする課題］
ところで、上記チューブ式キルンでは、セラミック原料
の原料塊の大きさの大小により、セラミック原料のキル
ンｌ内で滞留時間が異なり、仮焼むらが発生したり、キ
ルンｌ内にセラミック原料が付着してリングが発生し、
原料づまりが起こるといった問題があった。そして、上
記チューブ式キルンは、キルンｌが横置きされているの
で、面積生産性ら低いという問題らあった。[Problems to be Solved by the Invention] By the way, in the above-mentioned tube kiln, the residence time of the ceramic raw material in the kiln varies depending on the size of the lump of ceramic raw material, which may cause uneven calcination or Ceramic raw material adheres inside the l and a ring is generated.
There were problems such as raw material clogging. The tube kiln has a problem in that the area productivity is low because the kiln I is placed horizontally.
また、上記トンネル炉では、匣５を必要とするので熱効
率が悪く、匣５内の温度分布が不均一になりやすく、仮
焼むらが発生する。また、匣５にセラミック原料を詰め
るための作業も必要であり、作業性が悪いうえに、面積
生産性も悪く、仮焼に時間がかかるといった問題もあっ
た。Furthermore, since the tunnel furnace requires the box 5, its thermal efficiency is poor, and the temperature distribution within the box 5 tends to be uneven, resulting in uneven calcination. In addition, work is required to fill the box 5 with ceramic raw materials, which causes problems such as poor workability, poor area productivity, and time-consuming calcination.
さらに、上記竪型炉では、揺動板１４の揺動により、マ
ツフル１３内をセラミック原料！ｌが安定して降下する
ようにするには、セラミック原料１１を造粒しておく必
要があり、また、仮焼開始時に、予めダミー原料をマツ
フル１３に詰めて昇温させなければならないといった問
題や、炉づまりが発生するという問題があった。Furthermore, in the above-mentioned vertical furnace, the ceramic raw material inside the Matsufuru 13 is moved by the swinging of the swinging plate 14! In order for l to fall stably, it is necessary to granulate the ceramic raw material 11, and there are also problems such as the need to fill the Matsufuru 13 with dummy raw materials and raise the temperature before starting calcination. There was also the problem of clogging of the furnace.
本発明の目的は、セラミック原料の炉内の滞留時間を確
実に制御することができ、セラミック原料を均一に仮焼
することができる処理能力が大きく、面積生産性の良好
な仮焼炉を提供することである。An object of the present invention is to provide a calcining furnace that can reliably control the residence time of ceramic raw materials in the furnace, can uniformly calcinate ceramic raw materials, has a large processing capacity, and has good area productivity. It is to be.
［課題を解決するための手段］
このため、本発明は、セラミック原料を仮焼合成する仮
焼炉において、上端側から投入された上記セラミック原
料が下端側から取り出される竪型の炉体と、各々が上下
方向に多段に配列されるとともに両端部にて回転自在に
支持され、両端の支持部分の間に上記セラミック原料の
授受のための収容部を有する複数の筒状の回転容器と、
これら回転容器の配列方向に沿って配置された加熱手段
と、上記回転容器を順次回転させて、それに収容されて
いる上記セラミック原料を炉体内で順次下段の回転容器
の上記収容部に落下させる回転駆動手段とを備えたこと
を特徴としている。[Means for Solving the Problems] Therefore, the present invention provides a calcination furnace for calcination and synthesis of ceramic raw materials, which includes a vertical furnace body from which the ceramic raw materials introduced from the upper end side are taken out from the lower end side; A plurality of cylindrical rotating containers each arranged in multiple stages in the vertical direction and rotatably supported at both ends, and having a housing section between the support portions at both ends for receiving and receiving the ceramic raw material;
A heating means arranged along the arrangement direction of these rotating containers, and rotation that sequentially rotates the rotating containers and causes the ceramic raw material contained therein to fall sequentially into the storage section of the lower rotating container in the furnace body. It is characterized by being equipped with a driving means.
［作用］
上記炉体の上端側からセラミック原料が投入されると、
セラミック原料は最上段の回転容器に入り、この最上段
の回転容器内で加熱手段より予熱を受ける。一定時間経
過すると、最上段の回転容器が回転し、セラミック原料
は一段下の回転容器に落ちる。すべての回転容器につい
てこの操作が順次繰り返されて、セラミック原料は上段
の回転容器から下段の回転容器に順次落下していく。そ
の過程で、セラミック原料は加熱手段により加熱され、
仮焼される。セラミック原料の炉体的滞留時間は、各回
転容器の回転時間間隔を制御することにより、制御され
る。[Operation] When the ceramic raw material is introduced from the upper end of the furnace body,
The ceramic raw material enters the uppermost rotating container, and is preheated by the heating means within this uppermost rotating container. After a certain period of time, the top rotating container rotates, and the ceramic raw material falls into the rotating container one step below. This operation is sequentially repeated for all the rotating containers, and the ceramic raw material sequentially falls from the upper rotating container to the lower rotating container. In the process, the ceramic raw material is heated by heating means,
Calcined. The residence time of the ceramic raw material in the furnace body is controlled by controlling the rotation time interval of each rotating vessel.
［発明の効果］
本発明によれば、セラミック原料の炉体的滞留時間が各
回転容器の回転の時間間隔を制御することにより自由に
制御することができるので、セラミック原料に応じてそ
の仮焼合成に必要な時間間隔を自由に調整することがで
き、また、回転容器の回転時にセラミック原料が撹拌さ
れるので、均質な仮焼品を得ることができ、仮焼度が安
定する。[Effects of the Invention] According to the present invention, the residence time of the ceramic raw material in the furnace body can be freely controlled by controlling the rotation time interval of each rotating container, so that the calcination time can be adjusted depending on the ceramic raw material. The time interval required for synthesis can be freely adjusted, and since the ceramic raw material is stirred when the rotating container rotates, a homogeneous calcined product can be obtained and the degree of calcining is stable.
また、本発明によれば、匣等を使用することなく、しか
も造粒することなく、セラミック原料を炉体に投入する
だけで、はぼ連続して、セラミック原料の仮焼合成が行
なえるので、処理能力が大きく、しかも、竪型炉である
ので、面積生産性も良好なものとなる。Furthermore, according to the present invention, ceramic raw materials can be calcined and synthesized almost continuously by simply charging the ceramic raw materials into the furnace without using a box or the like and without granulating them. The processing capacity is large, and since it is a vertical furnace, the area productivity is also good.
［実施例］ 以下、添付の図面を参照して本発明の詳細な説明する。[Example] Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
本発明に係る仮焼炉の一実施例の概略縦断面を第１図に
、そのＩＶ−ＩＶ線に沿う断面を第２図に示す。FIG. 1 shows a schematic vertical cross section of an embodiment of the calcining furnace according to the present invention, and FIG. 2 shows a cross section taken along the line IV--IV.
上記仮焼炉２１は、竪型の炉体２２と、この炉体２２内
に上下に多段に配置される複数の筒状の回転容器２３と
、加熱手段としてのヒータ２４ないし２７と、上記各回
転容器２３の回転駆動手段Ｍとからなる。The above-mentioned calcining furnace 21 includes a vertical furnace body 22, a plurality of cylindrical rotating containers 23 arranged vertically in multiple stages within the furnace body 22, heaters 24 to 27 as heating means, and each of the above-mentioned components. It consists of a rotation drive means M for the rotation container 23.
上記炉体２２は、上記回転容器２３の外径よりもやや大
きく、その上下方向に走る炉体内空間２８を有する。こ
の炉体内空間２８の上端がセラミック原料１にの投入口
２８ａとなっており、下端がその排出口２８ｂとなって
いる。この炉体内空間２８内に、上記回転容器２３が多
段に配置される。The furnace body 22 has a furnace body space 28 that is slightly larger than the outer diameter of the rotating container 23 and runs in the vertical direction. The upper end of this furnace body space 28 serves as an input port 28a for the ceramic raw material 1, and the lower end serves as its discharge port 28b. In this furnace body space 28, the rotating containers 23 are arranged in multiple stages.
上記各回転容器２３は、耐熱性の材料を円筒形状に形成
したもので、その両端部にて上記炉体２２に回転自在に
支持される。上記各回転容器２３には、第３図に示すよ
うに、両端の支持部分の間がカットされて、セラミック
原料１１が投入される収容部２９が形成されている。こ
の収容部２９の両端は、閉塞板２９ａで閉塞される。Each of the rotating containers 23 is formed of a heat-resistant material into a cylindrical shape, and is rotatably supported by the furnace body 22 at both ends thereof. As shown in FIG. 3, each rotating container 23 is cut out between the support portions at both ends to form a housing portion 29 into which the ceramic raw material 11 is introduced. Both ends of this accommodating portion 29 are closed with closing plates 29a.
上記実施例では、回転容器２３は合計２本使用されてい
る。そして、第１図に炉体の温度プロファイルとともに
示すように、最上段とそれに続く合計４本の回転容器２
３が昇温帯を、また、それに続く合計５本の回転容器２
３が昇温した温度のキープ帯を、また、最下段とその上
の合計２本の回転容器２３が降温帯を形成する。In the above embodiment, a total of two rotating containers 23 are used. As shown in Fig. 1 along with the temperature profile of the furnace body, a total of four rotating vessels 2 are placed in the uppermost stage and following it.
3 is the temperature rising zone, and a total of 5 rotating vessels 2 following it
3 forms a temperature keeping zone where the temperature has increased, and a total of two rotating containers 23, the lowermost stage and above it, form a cooling zone.
上記温度プロファイルを形成するために、炉体２２には
、炉体内空間２８に沿ってヒータ２４ないし２７が配置
される。In order to form the above temperature profile, heaters 24 to 27 are arranged in the furnace body 22 along the furnace body space 28.
回転駆動手段Ｍは、マイクロコンピュータ（図示せず。The rotational drive means M includes a microcomputer (not shown).
）により制御され、上記各回転容器２３゛を順次回転さ
せて、それに収容されたセラミック原料２を、炉体２２
の炉体内空間２８内で、下段の回転容器２３の収容部２
９に落下させる。), the rotating containers 23' are sequentially rotated, and the ceramic raw material 2 contained therein is transferred to the furnace body 22.
In the furnace body space 28, the housing section 2 of the lower rotary container 23
Drop it to 9.
なお、各回転容器２３の収容部２９の両側には、セラミ
ック原料１Ｋを下段の回転容器２３に落下させるときに
、炉体２２内にセラミック原料ｌ！がこぼれ落ちるのを
防止するために、第４図に示すようなじゃま板３１が夫
々配置される。Note that, on both sides of the storage portion 29 of each rotating container 23, when the ceramic raw material 1K is dropped into the lower rotating container 23, the ceramic raw material l! In order to prevent the liquid from spilling out, a baffle plate 31 as shown in FIG. 4 is arranged in each case.
このような構成であれば、炉体２２上端部のセラミック
原料１１の投入口２８ａ（第１図参照）から、最上段の
回転容器２３の収容部２９に落下する。そして、最上段
の回転容器２３内でヒータ２４ないし２６により加熱さ
れて炉体２２内を上昇する加熱ガスにより予熱される。With such a configuration, the ceramic raw material 11 falls from the inlet 28a (see FIG. 1) at the upper end of the furnace body 22 into the accommodating portion 29 of the rotary container 23 on the uppermost stage. Then, it is preheated by heating gas heated by heaters 24 to 26 in the uppermost rotary container 23 and rising inside the furnace body 22.
一定時間経過すると、第５図に示すように、最上段の回
転容器２３が矢印Ａ３の向きに回転し、セラミック原料
ｌＩは一段下の回転容器２３の収容部２９に矢印Ａ４で
示すように落ちる。すべての回転容器２３について、こ
の操作が順次繰り返されて、セラミック原料１１は上段
の回転容器２３から下段の回転容器２３に順次落ちてい
く。そのときのセラミック原料ｔ 、１の落下の様子を
第６図において矢印Ａ、で示す。その過程で、セラミッ
ク原料１１は、第１図の温度プロファイルに従って加熱
され、仮焼される。そして、最終的に、炉体２２下部の
排出口２８から、その下に配置された容器３２に排出さ
れる。After a certain period of time has elapsed, as shown in FIG. 5, the uppermost rotating container 23 rotates in the direction of arrow A3, and the ceramic raw material II falls into the storage section 29 of the rotating container 23 one step below as shown by arrow A4. . This operation is sequentially repeated for all the rotating containers 23, and the ceramic raw material 11 sequentially falls from the upper rotating container 23 to the lower rotating container 23. The manner in which the ceramic raw material t,1 falls at that time is shown by arrow A in FIG. In the process, the ceramic raw material 11 is heated and calcined according to the temperature profile shown in FIG. Finally, it is discharged from the discharge port 28 at the bottom of the furnace body 22 into a container 32 disposed below.
上記から分かるように、セラミック原料！！の炉体２２
内滞留時間は、各回転容器２３の回転時間隔を制御する
ことにより制御される。As you can see from the above, ceramic raw materials! ! Furnace body 22
The internal residence time is controlled by controlling the rotation time interval of each rotating container 23.
上記実施例において、回転容器２３の内径が１２ｃｙｒ
、収容部２９の長さが４４ＣＩ、回転容器２３の１本当
りのセラミック原料１１の滞留時間を２０分としたとき
、バルクデンシティ（かさ密度）が１．３９７ｃｍ３の
セラミック原料を月当り７トン処理することができた。In the above embodiment, the inner diameter of the rotating container 23 is 12 cyr.
When the length of the storage section 29 is 44 CI and the residence time of each ceramic raw material 11 in the rotating container 23 is 20 minutes, 7 tons of ceramic raw material with a bulk density of 1.397 cm3 is processed per month. We were able to.
このときの炉サイズは、５４ｃｍＸ ｌ ００ｃａ＋ｘ
２３５Ｃｆｆであった。The furnace size at this time is 54cmX l 00ca+x
It was 235Cff.
また、上記実施例の仮焼炉の仮焼温度とセラミック原料
２中の酢酸可溶分との関係を測定したところ、第７図に
おいてｈｌで示す結果を得た。これに対し、従来のチュ
ーブ式キルン（第８図参照）および竪型炉（第１θ図参
照）では夫々第７図においてり、およびり、で示す結果
を得た。この第７図から、上記実施例の仮焼炉では仮焼
品のばらつきが少なく、安定した仮焼ができることが分
かる。Further, when the relationship between the calcination temperature in the calcination furnace of the above example and the acetic acid soluble content in the ceramic raw material 2 was measured, the results shown by hl in FIG. 7 were obtained. On the other hand, in the conventional tube kiln (see FIG. 8) and vertical furnace (see FIG. 1θ), the results shown by , and in FIG. 7 were obtained, respectively. From FIG. 7, it can be seen that the calcining furnace of the above embodiment has little variation in calcined products and can perform stable calcining.
なお、上記実施例において、原料替えによる不純物混入
を避けるため、回転容器２３とじゃま板３１の全体をカ
セット式に交換するような構成とすることもできる。In addition, in the above embodiment, in order to avoid contamination with impurities due to changing raw materials, it is also possible to adopt a configuration in which the rotating container 23 and the baffle plate 31 are entirely replaced in a cassette manner.
また、回転容器２３を、チェーンにより、共通の駆動源
により回転させることもできる。Further, the rotating container 23 can also be rotated by a common drive source using a chain.
第１図は本発明に係る仮焼炉の一実施例の構成を炉体の
温度プロファイルとともに示す縦断面図、第２図は第１
図のＩＶ−ＩＶ線に沿う断面図、第３図は回転容器の正
面図、
第４図はじゃま板の斜視図、
第５図は第１図の仮焼炉の動作説明図、第６図はじゃま
板の作用説明図、
第７図は第１図の仮焼炉と従来のロータリキルンおよび
竪型炉における温度に対する酢酸可溶分の測定結果を示
すグラフ、
第８図はロータリキルンの説明図、
第９図はトンネル炉の説明図、
第１０図は竪型炉の説明図である。
２１・・仮焼炉、 ２２・・・炉体、２３・・・回
転容器、 ２４〜２７・・・ヒータ、２８・・・炉
内空間、 ２８ａ・・・投入口、２８ｂ・・・排出
口、 Ｍ・・・回転駆動手段。
特許出願人 株式会社村田製作所
代 理 人 弁理士 青白 葆 外１名第１図
第２図
第
図
ｔ。
第
図
第
図
第
図
−３−一 二１１１ノＭ＜・Ｃ）
第
図
第
図
手続補正書FIG. 1 is a longitudinal sectional view showing the configuration of an embodiment of the calcining furnace according to the present invention together with the temperature profile of the furnace body, and FIG.
Figure 3 is a front view of the rotating container, Figure 4 is a perspective view of the baffle plate, Figure 5 is an explanatory diagram of the operation of the calcination furnace in Figure 1, Figure 6 is a cross-sectional view taken along line IV-IV in the figure. Figure 7 is a graph showing the measurement results of acetic acid soluble content versus temperature in the calcining furnace of Figure 1, conventional rotary kiln, and vertical furnace. Figure 8 is an explanation of the rotary kiln. 9 is an explanatory diagram of a tunnel furnace, and FIG. 10 is an explanatory diagram of a vertical furnace. 21...Calcination furnace, 22...Furnace body, 23...Rotating container, 24-27...Heater, 28...Furnace space, 28a...Input port, 28b...Outlet port , M...Rotation drive means. Patent applicant: Murata Manufacturing Co., Ltd. Agent: Patent attorney: 1 other person: Figure 1, Figure 2, Figure t. Figure Figure Figure -3-1 2111 no M<・C) Figure Figure Procedure Amendment
Claims (1)
取り出される竪型の炉体と、各々が上下方向に多段に配
列されるとともに両端部にて回転自在に支持され、両端
の支持部分の間に上記セラミック原料の授受のための収
容部を有する複数の筒状の回転容器と、これら回転容器
の配列方向に沿って配置された加熱手段と、上記回転容
器を順次回転させて、それに収容されている上記セラミ
ック原料を炉体内で順次下段の回転容器の上記収容部に
落下させる回転駆動手段とを備えたことを特徴とする仮
焼炉。(1) In a calcining furnace for calcining and synthesizing ceramic raw materials, there is a vertical furnace body from which the ceramic raw materials introduced from the upper end side are taken out from the lower end side, and a vertical furnace body arranged in multiple stages in the vertical direction, with both ends a plurality of cylindrical rotating containers that are rotatably supported at the support portions at both ends and have storage portions for receiving and receiving the ceramic raw material between support portions at both ends; and heating means arranged along the arrangement direction of the rotating containers. and a rotational driving means for sequentially rotating the rotating container and causing the ceramic raw material contained therein to fall sequentially into the storage section of the lower rotating container within the furnace body. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26033088A JPH024192A (en) | 1988-10-13 | 1988-10-13 | Calcinating furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26033088A JPH024192A (en) | 1988-10-13 | 1988-10-13 | Calcinating furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH024192A true JPH024192A (en) | 1990-01-09 |
Family
ID=17346498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26033088A Pending JPH024192A (en) | 1988-10-13 | 1988-10-13 | Calcinating furnace |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH024192A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008157554A (en) * | 2006-12-25 | 2008-07-10 | Tanaka Chemical Corp | Firing furnace |
| US9580947B1 (en) | 2015-09-30 | 2017-02-28 | Brunswick Corporation | Cowls and latching assemblies for cowls on outboard marine propulsion devices |
-
1988
- 1988-10-13 JP JP26033088A patent/JPH024192A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008157554A (en) * | 2006-12-25 | 2008-07-10 | Tanaka Chemical Corp | Firing furnace |
| US9580947B1 (en) | 2015-09-30 | 2017-02-28 | Brunswick Corporation | Cowls and latching assemblies for cowls on outboard marine propulsion devices |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3448012A (en) | Rotary concentric partition in a coke oven hearth | |
| AU548495B2 (en) | Preheating glass batch | |
| RU2388886C2 (en) | Method to load/unload loose material for its sorting, drying, storing and further processing and process line to this end, and loose material storage, method of drying loose foodstuffs and device to this end | |
| US3307840A (en) | Continuous calcination of gypsum | |
| JPS6137598B2 (en) | ||
| US2861356A (en) | Apparatus for cooling granular materials | |
| US3341186A (en) | Materials heating and handling apparatus | |
| CN1112230A (en) | Ceramic heat treatment device | |
| KR20160073648A (en) | Rotary kiln | |
| US5709345A (en) | Fine powder heat treating apparatus | |
| US4386951A (en) | Method and apparatus for preheating glass batch | |
| CN214361497U (en) | Rotary furnace with spiral conveying and scraping structure | |
| RU2489255C1 (en) | Computerised line for production of complex oxide-based solid-phase composites | |
| JPH05332680A (en) | Continuous heat treatment furnace | |
| US4409011A (en) | Preheating glass batch | |
| US4425147A (en) | Preheating glass batch | |
| WO1990005984A1 (en) | Processing of a dry precursor material | |
| RU2630992C1 (en) | Loading and distribution device of uniflow and counterflow regenerative furnace with round shafts for sintering lumpy carbonate material | |
| JPH0642876A (en) | Indirect heating type rotary heating furnace | |
| JPH01194288A (en) | High-frequency heating device | |
| JPH063064A (en) | Kiln | |
| US3861864A (en) | Vertical continuous kiln for producing high-purity metal oxides and other compounds | |
| SU436604A1 (en) | Furnace for heat treatment of bulk materials | |
| JPS6330955Y2 (en) | ||
| JPS61216728A (en) | Vertical ceramics calcinator |