JP2784484B2 - Raw material supply method and raw material supply device in roasting device - Google Patents
Raw material supply method and raw material supply device in roasting deviceInfo
- Publication number
- JP2784484B2 JP2784484B2 JP26264089A JP26264089A JP2784484B2 JP 2784484 B2 JP2784484 B2 JP 2784484B2 JP 26264089 A JP26264089 A JP 26264089A JP 26264089 A JP26264089 A JP 26264089A JP 2784484 B2 JP2784484 B2 JP 2784484B2
- Authority
- JP
- Japan
- Prior art keywords
- raw material
- supply
- roasting
- material supply
- rotary
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000002994 raw material Substances 0.000 title claims description 77
- 238000000034 method Methods 0.000 title claims description 8
- 238000009423 ventilation Methods 0.000 claims 1
- 241000209140 Triticum Species 0.000 description 8
- 235000021307 Triticum Nutrition 0.000 description 8
- 240000007594 Oryza sativa Species 0.000 description 4
- 235000007164 Oryza sativa Nutrition 0.000 description 4
- 235000009566 rice Nutrition 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 2
- 244000068988 Glycine max Species 0.000 description 1
- 235000010469 Glycine max Nutrition 0.000 description 1
- 241000533293 Sesbania emerus Species 0.000 description 1
- 244000269722 Thea sinensis Species 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005243 fluidization Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 235000014102 seafood Nutrition 0.000 description 1
Landscapes
- Apparatuses For Bulk Treatment Of Fruits And Vegetables And Apparatuses For Preparing Feeds (AREA)
Description
【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION
本発明は小麦、大豆、コーヒー豆等の穀物、ちりめん
じゃこ、いりこ等の魚介類、茶葉等の食品原料を連続的
に焙焼する装置における原料の供給方法及び装置に関す
るものである。The present invention relates to a method and an apparatus for supplying raw materials in an apparatus for continuously roasting food raw materials such as cereals such as wheat, soybeans and coffee beans, seafood such as crepe and rice, and tea leaves.
本発明で対象とするケーシング（３）内に複数のマス
に分割されたタテ型回転焙焼室（１）を設け、その回転
焙焼室（１）の下端面に近接して整流板（２）を設けた
構造の焙焼装置は、例えば特開昭63−273464号にみら
れ、その構造の主な部分は後に説明する第１図にもみら
れる。装置は複数のマスに分割されたタテ型回転焙焼室
（１）と、その回転焙焼室下端面に近接して多孔の整流
板（２）とがケーシング（３）内に設けられている。原
料は上部ホッパ（11）からロータリーバルブ（５）を経
て原料投入口（15）からタテ型回転焙焼室（１）の個々
のマスに順次供給され、加熱空気によって焙焼されて排
出側ロータリーバルブ（12）を経て排出される。焙焼の
ための空気循環経路の一部にバーナ燃焼室（13）があ
り、回転焙焼室（１）を通った加熱空気はサイクロン
（14）を経て再びバーナ燃焼室（13）に戻る。回転焙焼
室（１）の回転に伴って製品排出口（16）に達すると焙
焼を終えて製品が排出されるのである。A vertical rotatable roasting chamber (1) divided into a plurality of masses is provided in a casing (3) targeted by the present invention, and a straightening plate (2) is provided near the lower end surface of the rotatable roasting chamber (1). For example, a roasting apparatus having a structure provided with) is disclosed in Japanese Patent Application Laid-Open No. 63-273464, and the main part of the structure is also seen in FIG. The apparatus has a vertical rotatable roasting chamber (1) divided into a plurality of cells, and a perforated flow straightening plate (2) close to the lower end surface of the rotatable roasting chamber, which is provided in a casing (3). . The raw material is sequentially supplied from the upper hopper (11) via the rotary valve (5) to the individual masses of the vertical rotary roasting chamber (1) from the raw material inlet (15), and roasted by heated air to be discharged to the rotary side. Discharged via valve (12). A burner combustion chamber (13) is provided in a part of the air circulation path for roasting, and the heated air that has passed through the rotary roasting chamber (1) returns to the burner combustion chamber (13) again through the cyclone (14). When the product reaches the product discharge port (16) with the rotation of the rotary roasting chamber (1), the roasting is finished and the product is discharged.
小麦等の焙焼原料を、流動層を形成して焙焼する場合
は、原料の層厚（静止時の整流板上の原料堆積高さ）
は、5cm程度が適正である。ただしこの値は原料の種類
によって異なる。5cmよりも極端に層厚が大きいと部分
的に突沸が起こり、適正な流動が得られない。また、5c
mより小さいと焙焼処理量が少なくなり、経済的でなく
なる。小麦の場合、約5cmが適正であるので、小麦の場
合で説明する。この5cmは、定常運転状態のとき層厚が5
cmになるように原料を供給すれば品質的にも経済的にも
問題がないということである。しかし定常運転状態でな
い、原料供給開始直後、及び原料供給終了直前では定常
運転時と同一量の原料供給を行うと、適正な流動層が形
成できない。第２図は原料供給開始直後の回転焙焼室内
を上方より見たものであるが、このとき流動層を形成さ
せるための熱風は、原料が充填されているマス（1a）内
の原料層厚が定常運転時の層厚である5cmだとすると、
原料が充填されているマス（1a）には熱風の通過抵抗が
大きいために熱風はほとんど通過せず、より抵抗の小さ
い原料の充填されていないマス（1b）を整流板（２）を
通して通過する。したがって原料は適正な流動層を形成
しない。これは多孔の整流板（２）上がほとんど原料に
よって充填されるまで生じる。このことは原料供給終了
直前でも同様である。 したがって、これらの場合、原料の流動化が起こりに
くいために原料の焙焼ムラが生じる。整流板（２）付近
の原料は高温となり、焙焼され過ぎ焦げたりする。また
上方部原料は、熱がかからず、生の状態のまま排出され
ることもある。一方、回転焙焼室下端と多孔の整流板
（２）は原料が焙焼室外に流出しないように、わずかな
隙間に保たれている。しかしながら原料が流動化され
ず、回転焙焼室の回転に引きづられて原料が移動したと
きは、第３図のように原料（10）及び夾雑物の一部が整
流板（２）の孔（９）に入り込み、回転焙焼室の隔壁
（17）の移動によって原料（10）が切断され、そして整
流板の孔に目詰りする。この目詰りは、適正な流動層形
成を阻害する原因となる。 なお、これらのことは定常運転中、一時的に原料供給
を停止し、また再開する場合においても同様である。In the case of roasting raw materials such as wheat to form a fluidized bed and roasting, the thickness of the raw material (the height of the raw material on the rectifier plate at rest)
About 5cm is appropriate. However, this value varies depending on the type of raw material. If the layer thickness is extremely large than 5 cm, bumping occurs partially, and proper flow cannot be obtained. Also, 5c
If it is smaller than m, the amount of roasting treatment is reduced, and it is not economical. In the case of wheat, about 5 cm is appropriate, so the case of wheat will be described. This 5 cm has a layer thickness of 5
If the raw material is supplied in cm, there is no problem in terms of quality or economy. However, if the same amount of the raw material is supplied in the normal operation state, immediately after the start of the raw material supply, and immediately before the end of the raw material supply, an appropriate fluidized bed cannot be formed. FIG. 2 is a top view of the rotary roasting chamber immediately after the start of the supply of the raw material. At this time, the hot air for forming the fluidized bed is caused by the thickness of the raw material layer in the mass (1a) filled with the raw material. Is 5cm, which is the layer thickness during normal operation,
The hot air hardly passes through the mass (1a) filled with the raw material because of the high resistance of the hot air to pass through, and the mass (1b) without the raw material filled with the lower resistance passes through the straightening plate (2). . Therefore, the raw material does not form a proper fluidized bed. This occurs until the top of the porous baffle (2) is almost completely filled with raw material. This is the same immediately before the end of the raw material supply. Therefore, in these cases, since the fluidization of the raw material is unlikely to occur, uneven roasting of the raw material occurs. The raw material in the vicinity of the current plate (2) becomes high in temperature and is excessively roasted and burns. The upper raw material may be discharged in a raw state without heat. On the other hand, the lower end of the rotary roasting chamber and the perforated flow straightening plate (2) are kept in a slight gap so that the raw material does not flow out of the roasting chamber. However, when the raw material is not fluidized and the raw material moves due to the rotation of the rotary roasting chamber, as shown in FIG. 3, the raw material (10) and some of the impurities are removed from the holes of the current plate (2). (9), the raw material (10) is cut by the movement of the partition (17) in the rotary roasting chamber, and the holes in the current plate are clogged. This clogging causes a hindrance to proper fluidized bed formation. The same applies to the case where the raw material supply is temporarily stopped and restarted during the steady operation.
上記課題を検討した結果、定常運転状態でない、原料
供給開始直後又は原料供給終了直前には、原料供給量を
調整する、すなわち、原料供給開始直後又は原料供給終
了直前のいずれか一方又は両方の供給量を定常状態の通
常の時間あたり供給量よりも少なく供給することにより
上記課題を解決したのである。 この方法を実施可能な装置として、次のような構造の
ものを開発した。すなわち、複数のマスに分割されたタ
テ型回転焙焼室（１）と、その回転焙焼室下端面に近接
して設けられた多孔の整流板（２）とがケーシング
（３）内に設けられた焙焼装置において、原料ホッパ
（11）から回転焙焼室（１）に至る原料供給経路へ原料
供給開始直後又は原料供給終了直前に通常の時間あたり
供給量よりも原料を少なく供給可能とする供給量調節手
段（20）を設けたことを特徴とする。 供給量調節手段（20）の具体的な態様としては、例え
ば、原料ホッパ（11）からフィーダ（４）、ロータリー
バルブ（５）を介して回転焙焼室（１）に至る経路のフ
ィーダ（４）の駆動モータ（８）をプログラマブルコン
トローラ（６）とインバータ（７）により制御する構造
を示すことができる。ここにいうフィーダ（４）にはロ
ータリーフィーダ、振動フィーダ等が含まれる。As a result of examining the above-mentioned problems, it is not in a steady operation state, immediately after the start of the supply of the raw material or immediately before the end of the supply of the raw material, the amount of the raw material supply is adjusted. The above problem was solved by supplying the amount less than a normal supply amount per hour in a steady state. The following structure was developed as a device that can execute this method. That is, a vertical rotary roasting chamber (1) divided into a plurality of masses and a porous straightening plate (2) provided near the lower end surface of the rotary roasting chamber are provided in a casing (3). In the roasting apparatus, the raw material can be supplied to the raw material supply path from the raw material hopper (11) to the rotary roasting chamber (1) immediately after the start of the raw material supply or immediately before the end of the raw material supply, less than the usual supply amount per hour. The supply amount adjusting means (20) is provided. As a specific mode of the supply amount adjusting means (20), for example, the feeder (4) on the path from the raw material hopper (11) to the rotary roasting chamber (1) via the feeder (4) and the rotary valve (5) is used. The structure in which the drive motor (8) is controlled by the programmable controller (6) and the inverter (7) can be shown. The feeder (4) mentioned here includes a rotary feeder, a vibration feeder and the like.
このような方法及び装置によって、原料供給開始直後
や原料供給終了直前に原料供給量を調整すると、定常運
転でない状態においても、回転焙焼室内整流板上に適正
な流動層が形成される。By adjusting the raw material supply amount immediately after starting the raw material supply or immediately before the end of the raw material supply by such a method and an apparatus, an appropriate fluidized bed is formed on the rectifying plate in the rotary roasting chamber even in a state of not being in a steady operation.
以下図面によって本発明の焙焼装置における原料供給
方法とそれを実施可能な原料供給装置について説明す
る。 第１図は本発明の原料供給装置を備えた焙焼装置の断
面図である。本装置は最上部の原料ホッパ（11）から順
次原料がロータリーフィーダ（４）、ロータリーバルブ
（５）を経て回転焙焼室（１）に至る。その経路のロー
タリーフィーダ（４）の駆動モータ（８）に対して、供
給量調節手段（20）としてプログラマブルコントローラ
（６）とインバータ（７）を接続して制御可能としてい
る。 このような機構をそれぞれ、小麦焙焼装置、米焙
焼装置について実施し、試験した結果を次に示す。 小麦焙焼装置 ・定常運転時原料層厚……5cm ・原料が整流板上に滞留する時間……50秒 したがって供給開始直後の60秒間と、終了直前の60秒
間は時間あたり供給量を半分にして層厚を2.5cmとした
（第４図グラフ参照）。 小麦原料が2.5cmの層厚の場合、整流板上に小麦が充
填されていないマスがあっても適正な流動層が得られ
た。 供給量調節手段（20）は具体的には、第１図のように
ロータリーフィーダ（４）の駆動モータ（８）をインバ
ータ（７）で可変できるようにして、プログラマブルコ
ントローラ（６）から原料供給開始直後と終了直前の所
定時間だけインバータ（７）に50％供給量になるように
指示する装置を設けたのである。 米焙焼装置 ・定常運転時原料層厚……4cm ・原料が整流板上に滞留する時間……40秒 米原料の供給開始から50秒間、定常運転時原料供給量
の20％から徐々に100％まで増加させた（第５図グラフ
参照）（層厚は0.8cmから4cmまで増加）。 供給終了時は直前50秒間、100％から20％まで減少さ
せた。具体的には第１図の装置でプログラマブルコント
ローラ（６）からインバータ（７）に指示する回路を構
成して実現した。Hereinafter, a raw material supply method in a roasting apparatus of the present invention and a raw material supply apparatus capable of performing the method will be described with reference to the drawings. FIG. 1 is a sectional view of a roasting apparatus provided with a raw material supply device of the present invention. In this apparatus, the raw material sequentially passes from the uppermost raw material hopper (11) to the rotary roasting chamber (1) via the rotary feeder (4) and the rotary valve (5). A programmable controller (6) and an inverter (7) as a supply amount adjusting means (20) are connected to the drive motor (8) of the rotary feeder (4) on the path so as to be controllable. Such a mechanism was implemented for a wheat roasting device and a rice roasting device, respectively, and the results of the tests are shown below. Wheat roasting equipment ・ Raw material layer thickness during normal operation: 5 cm ・ Time during which raw material stays on the flow straightening plate: 50 seconds Therefore, the supply amount per hour is reduced by half for 60 seconds immediately after the start of supply and 60 seconds immediately before the end. The layer thickness was set to 2.5 cm (see the graph in FIG. 4). When the wheat raw material had a layer thickness of 2.5 cm, an appropriate fluidized bed was obtained even if there was a mass not filled with wheat on the current plate. Specifically, the supply amount adjusting means (20) makes the drive motor (8) of the rotary feeder (4) variable by an inverter (7) as shown in FIG. A device for instructing the inverter (7) to supply 50% of the supply amount for a predetermined time immediately after the start and immediately before the end is provided. Rice roasting equipment ・ Raw material layer thickness during normal operation: 4 cm ・ Time during which raw material stays on the current plate: 40 seconds 50 seconds from the start of rice raw material supply, gradually increasing from 20% of the raw material supply amount during normal operation to 100 % (See graph in FIG. 5) (layer thickness increased from 0.8 cm to 4 cm). At the end of the supply, it was reduced from 100% to 20% for the last 50 seconds. More specifically, a circuit for instructing the inverter (7) from the programmable controller (6) in the apparatus shown in FIG. 1 was realized.
以上のような焙焼装置における原料供給方法及び原料
供給装置により、原料供給開始直後又は終了直前の焼き
ムラ、焦げの発生、生原料のままの排出がなくなった。
また、原料等の整流板への目詰りがなくなった。これら
により高品質の製品の提供を可能にすると共に、装置の
稼動率を高める効果が得られた。By the raw material supply method and the raw material supply device in the roasting apparatus as described above, the occurrence of uneven baking, scorch immediately after the start or immediately before the end of the raw material supply, and the discharge of raw raw materials are eliminated.
In addition, clogging of the current plate with raw materials and the like has been eliminated. As a result, a high-quality product can be provided, and the operation rate of the apparatus can be increased.
第１図は本発明の原料供給装置を備えた焙焼装置の断面
図である。第２図は原料供給開始直後の回転焙焼室の平
面図。第３図は原料が流動化していない状態の目詰り状
態を示す図である。第4,5図は原料供給量を示すグラフ
である。 （１）タテ型回転焙焼室、（２）整流板 （３）ケーシング、（４）ロータリーフィーダ （５）ロータリーバルブ （６）プログラマブルコントローラ （７）インバータ、（８）駆動モータ （10）原料、（11）原料ホッパFIG. 1 is a sectional view of a roasting apparatus provided with a raw material supply device of the present invention. FIG. 2 is a plan view of the rotary roasting chamber immediately after starting supply of raw materials. FIG. 3 is a view showing a clogged state where the raw material is not fluidized. FIGS. 4 and 5 are graphs showing raw material supply amounts. (1) vertical rotary roasting chamber, (2) current plate (3) casing, (4) rotary feeder (5) rotary valve (6) programmable controller (7) inverter, (8) drive motor (10) raw material, (11) Raw material hopper
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.6，ＤＢ名) A23N 12/08──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. 6 , DB name) A23N 12/08
Claims (2)
通風によって焙焼する連続焙焼において、原料供給開始
直後又は原料供給終了直前に通常の時間あたり供給量よ
りも少なく供給することを特徴とする焙焼装置における
原料供給方法。In a continuous roasting wherein the raw material supplied to the rotary roasting chamber is roasted by ventilation of heated air, the raw material is supplied less than a normal supply amount per hour immediately after starting the raw material supply or immediately before the end of the raw material supply. A method for supplying raw materials in a roasting apparatus, characterized by the following.
（１）と、該回転焙焼室下端面に近接して設けられた多
孔の整流板（２）とがケーシング（３）内に設けられた
焙焼装置において、原料ホッパ（11）から回転焙焼室
（１）に至る原料供給経路へ原料供給開始直後又は原料
供給終了直前に通常の時間あたり供給量よりも少なく供
給可能とする供給量調節手段（20）を設けたことを特徴
とする焙焼装置における原料供給装置。2. A casing (3) comprising: a vertical rotary roasting chamber (1) divided into a plurality of masses; and a porous straightening plate (2) provided close to a lower end surface of the rotary roasting chamber. In the roasting device installed in the inside, it is possible to supply less than the usual amount of supply per hour immediately after starting the supply of raw material or immediately before ending the supply of raw material to the raw material supply path from the raw material hopper (11) to the rotary roasting chamber (1). A raw material supply device in a roasting device, comprising a supply amount adjusting means (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26264089A JP2784484B2 (en) | 1989-10-07 | 1989-10-07 | Raw material supply method and raw material supply device in roasting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26264089A JP2784484B2 (en) | 1989-10-07 | 1989-10-07 | Raw material supply method and raw material supply device in roasting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03123478A JPH03123478A (en) | 1991-05-27 |
| JP2784484B2 true JP2784484B2 (en) | 1998-08-06 |
Family
ID=17378594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26264089A Expired - Fee Related JP2784484B2 (en) | 1989-10-07 | 1989-10-07 | Raw material supply method and raw material supply device in roasting device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2784484B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7169432B2 (en) * | 2004-03-04 | 2007-01-30 | Microsoy Corporation | Toasted soybean flakes and method of making same |
| CN115867153A (en) * | 2020-07-24 | 2023-03-28 | 雀巢产品有限公司 | Coffee bean roasting apparatus |
-
1989
- 1989-10-07 JP JP26264089A patent/JP2784484B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03123478A (en) | 1991-05-27 |
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