JP2010085257A - Blending unit and automatic blending device - Google Patents

Blending unit and automatic blending device Download PDF

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JP2010085257A
JP2010085257A JP2008254822A JP2008254822A JP2010085257A JP 2010085257 A JP2010085257 A JP 2010085257A JP 2008254822 A JP2008254822 A JP 2008254822A JP 2008254822 A JP2008254822 A JP 2008254822A JP 2010085257 A JP2010085257 A JP 2010085257A
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crucible
unit
hopper
blending
powder
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JP4658176B2 (en
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Motofumi Ebisu
基文 戎
Masamori Yokoiwa
巨盛 横岩
Takafumi Kido
孝文 城戸
Koichi Maki
公一 牧
Shogo Kanzaki
正悟 神崎
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Nippon Mining Holdings Inc
Eneos Corp
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Nippon Mining and Metals Co Ltd
Nippon Mining Co Ltd
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    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/20—Metals
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
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    • G01N1/4022—Concentrating samples by thermal techniques; Phase changes

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Abstract

<P>PROBLEM TO BE SOLVED: To provide a blending device capable of suppressing a weighing error of powder inputted into a crucible. <P>SOLUTION: This blending unit 2 is equipped with: a hopper part 22 for storing the powder; a dry air supply part 24 for supplying dry air into the hopper part 22; a cutting-out part 23 arranged on the outlet side of the hopper part 22, for cutting out the powder; a weighing part 26 arranged on the outlet side of the cutting-out part 23, for weighing cut-out powder; and an input part 27 arranged on the outlet side of the weighing part 26, for inputting the powder into the crucible 7, close to a mouth of the crucible 7. The whole body from the hopper part 22 to the input part 27 is sealed so that the powder are not scattered to the outside. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、乾式分析用の融剤の調合を自動化した調合ユニットに関する。   The present invention relates to a blending unit that automates the blending of a flux for dry analysis.

鉱石や金属製錬副産物及びリサイクル原料等から金、銀、プラチナ、パラジウム等の有価金属を効率的に得るためには、適切な処理方法を選択するのみならず、経済性の面からもその鉱石や金属の製錬副産物及びリサイクル原料等にそれら有価金属が含まれている量をあらかじめ正確に分析しておくことが重要である。   In order to efficiently obtain valuable metals such as gold, silver, platinum, and palladium from ores, metal smelting by-products, and recycled raw materials, not only select an appropriate treatment method, but also the ores from an economic standpoint. It is important to accurately analyze in advance the amount of these valuable metals contained in metal smelting by-products and recycled raw materials.

このような有価金属の定量分析では、試料を収納したルツボへ、酸化鉛や各種融剤を所定量投入して融解し、スラグと分離した鉛ボタンを灰吹きし、溶解処理して有価金属の含有率を算出するという手法が取られている。   In such a quantitative analysis of valuable metals, a predetermined amount of lead oxide or various fluxes is introduced into a crucible containing a sample and melted, and a lead button separated from the slag is ash-blown and dissolved to treat the valuable metals. The technique of calculating the content rate is taken.

特許文献１には、このような各種融剤の調合作業を自動化した装置について開示されている。特許文献１の自動化装置では、ルツボへ融剤を投入する投入板を振動させる電磁フィーダと、融剤を投入板へ供給するコンベアを備え、一度に投入する融剤をコンベアから投入板へ供給するステップと、投入板からルツボへ投入するステップと、を経て融剤をルツボへ投入する。このような自動化装置は、人手により行う場合の作業負担を軽減し、作業の効率化を図っている。   Patent Document 1 discloses an apparatus that automates the blending of such various fluxes. The automated apparatus of Patent Document 1 includes an electromagnetic feeder that vibrates a charging plate for charging a crucible into the crucible and a conveyor that supplies the flux to the charging plate, and supplies the flux that is charged at a time from the conveyor to the charging plate. The flux is charged into the crucible through the steps and the step of charging into the crucible from the charging plate. Such an automatic device reduces the work burden when it is performed manually, thereby improving work efficiency.

特開平１１−２８７７４４号公報JP-A-11-287744

ところが、特許文献１の装置では、例えば、硅砂のような微小な粉体を扱う場合、フィーダの振動、駆動により粉体の飛散、落鉱が生じ、秤量誤差が発生する場合があった。また、ホウ砂のような吸湿性の高い粉体を扱う場合、粉体が吸湿によりホッパ部内やフィーダ上で団塊状になり、ホッパ部内やフィーダ上において詰りの原因となることがあった。さらに、この塊が排出されることにより、秤量誤差が生じる場合があった。また、これらの粉体がホッパ部及びフィーダ部の内壁面に付着する、いわゆる棚吊り現象により切り出し量が制限され、秤量時間遅延が発生することがあった。このような秤量誤差が生じることから自動化が困難なため人手で調合が行われており、作業負担の削減、調合時間の短縮が求められていた。   However, in the apparatus of Patent Document 1, for example, when handling a fine powder such as cinnabar, the powder is scattered and falling due to vibration and driving of the feeder, and a weighing error may occur. Further, when handling a highly hygroscopic powder such as borax, the powder may be agglomerated in the hopper or on the feeder due to moisture absorption, which may cause clogging in the hopper or on the feeder. Further, when this lump is discharged, a weighing error may occur. In addition, the amount of cut out is limited by the so-called shelf hanging phenomenon in which these powders adhere to the inner wall surfaces of the hopper part and the feeder part, and a weighing time delay may occur. Since such weighing errors occur, automation is difficult, so that the mixing is performed manually, and reduction of work load and shortening of the mixing time have been demanded.

そこで、本発明は、ルツボへ投入する粉体の秤量誤差を抑制する調合装置を提供することを課題とする。   Then, this invention makes it a subject to provide the preparation apparatus which suppresses the weighing error of the powder thrown into a crucible.

かかる課題を解決する本発明の調合ユニットは、付着性を有する粉体を蓄えるホッパ部と、当該ホッパ部内へ乾燥空気を供給する乾燥空気供給部と、前記ホッパ部の出口側に配置され、前記粉体を切り出す切出し部と、当該切出し部の出口側に配置され、切り出された前記粉体を秤量する秤量部と、当該秤量部の出口側に配置され、ルツボの口に近接して前記粉体をルツボへ投入する投入部と、を備え、前記ホッパ部から前記投入部は、前記粉体が外部へ飛散しないように密閉されていることを特徴とする。   The blending unit of the present invention that solves such a problem is arranged on the outlet side of the hopper part that stores the powder having adhesiveness, the dry air supply part that supplies the dry air into the hopper part, A cutting part for cutting out the powder, a weighing part arranged on the outlet side of the cutting part and weighing the cut-out powder, and arranged on the outlet side of the weighing part, in close proximity to the mouth of the crucible And an insertion portion for introducing the body into the crucible, wherein the introduction portion is sealed from the hopper portion so that the powder does not scatter to the outside.

このような構成とすることにより、密閉空間内で切り出し、秤量が行なわれるため、粉体の飛散、落鉱が抑制される。また、ホッパ部内へ送られる乾燥空気により、粉体のホッパ部内への付着を緩和し、いわゆる棚吊り状態を抑制できる。これにより、ルツボへ投入する粉体の秤量誤差を抑制することができる。このような秤量誤差を抑制することにより、ルツボへの粉体の投入を自動化することができ、人手による調合作業の煩雑さを解消し、調合時間を短縮することができる。   By setting it as such a structure, since it cuts out in sealed space and weighing is performed, scattering of a powder and falling ore are suppressed. Further, the dry air sent into the hopper part can alleviate the adhesion of the powder into the hopper part, and the so-called shelf hanging state can be suppressed. Thereby, the weighing error of the powder put into the crucible can be suppressed. By suppressing such weighing errors, it is possible to automate the charging of the powder into the crucible, eliminate the complexity of manual preparation work, and shorten the preparation time.

このような調合ユニットを組み込んだ本発明の自動調合装置は、前記調合ユニットを複数備え、前記調合ユニットのホッパ部のそれぞれに異なる粉体を蓄え、複数の粉体を前記ルツボに投入することを特徴とする。このような構成とすることにより、複数の融剤を同時に調合することができる。複数の異なる粉体の一例として、硅砂、ホウ砂とすることができる。   The automatic blending apparatus of the present invention incorporating such a blending unit includes a plurality of the blending units, stores different powders in each of the hopper portions of the blending unit, and puts the plurality of powders into the crucible. Features. By setting it as such a structure, a several flux can be prepared simultaneously. As an example of a plurality of different powders, cinnabar sand and borax can be used.

また、このような自動調合装置は、前記粉体が硅砂であり、硅砂をルツボへ投入する前記調合ユニットと、前記粉体がホウ砂であり、ホウ砂をルツボへ投入する前記調合ユニットと、酸化鉛を蓄えるホッパ部と、当該ホッパ部の出口側に配置され、前記酸化鉛を切り出す切出し部と、当該切出し部の出口側に配置され、切り出された前記酸化鉛を秤量する秤量部と、当該秤量部の出口側に配置され、ルツボの口に近接して前記酸化鉛をルツボへ投入する投入部と、を備え、前記ホッパ部から前記投入部が、前記酸化鉛が外部へ飛散しないように密閉されている調合ユニットと、を並べて設置して、コンベア上に配置したルツボへ硅砂、ホウ砂、酸化鉛を投入する。このような構成により、酸化鉛、硅砂、ホウ砂を同時に調合することができる。これにより、調合時間を短縮することができる。   Further, in such an automatic blending apparatus, the powder is cinnabar, the blending unit that throws cinnabar into a crucible, the powder is borax, and the blending unit that throws borax into a crucible; A hopper part for storing lead oxide, an outlet side of the hopper part, a cutout part for cutting out the lead oxide, a weighing part arranged at the outlet side of the cutout part and weighing the extracted lead oxide; And a charging unit that is disposed on the outlet side of the weighing unit and that inputs the lead oxide into the crucible in the vicinity of the crucible mouth, so that the charging unit does not scatter the lead oxide from the hopper to the outside. Are placed side by side, and dredged sand, borax and lead oxide are put into a crucible placed on a conveyor. With such a configuration, lead oxide, cinnabar sand, and borax can be prepared simultaneously. Thereby, preparation time can be shortened.

さらに、このような自動調合装置は、正転及び逆転して、ルツボを前記各調合ユニットの投入部の下方に搬送するコンベアを備え、コンベアが正転する場合に、ルツボへ酸化鉛、ホウ砂、硅砂の順に投入し、ルツボへコンベアが逆転する場合に、硅砂、ホウ砂、酸化鉛の順に投入する構成としても良い。   Further, such an automatic blending apparatus includes a conveyor that rotates forward and backward and conveys the crucible below the charging unit of each blending unit. When the conveyor rotates forward, lead oxide and borax are transferred to the crucible. When the conveyor is reversed and the conveyor reverses to the crucible, the structure may be such that the sand is added in the order of sand, borax, and lead oxide.

本発明は、ルツボへ投入する粉体の秤量誤差を抑制することができる。このため、調合の自動化を可能とし、人手による調合作業を削減し、調合時間を短縮することができる。   The present invention can suppress the weighing error of the powder put into the crucible. For this reason, it is possible to automate the mixing, reduce manual mixing work, and shorten the mixing time.

以下、本発明を実施するための最良の形態を図面と共に説明する。   The best mode for carrying out the present invention will be described below with reference to the drawings.

本発明の実施例１について図面を参照しつつ説明する。図１は本発明の自動調合装置１の概略構成を示した説明図である。自動調合装置１は、３台の調合ユニット２、３、４と、ベルトコンベア５と、位置検出センサ６とを備えている。３台の調合ユニット２、３、４は、並べて配置されており、ベルトコンベア５は、これらの調合ユニットの下側を通るように配置されている。本実施例では、調合ユニット２は硅砂を秤量してルツボ７へ投入し、調合ユニット３はホウ砂を秤量してルツボ７へ投入し、調合ユニット４は酸化鉛を秤量してルツボ７へ投入するように構成されている。   Embodiment 1 of the present invention will be described with reference to the drawings. FIG. 1 is an explanatory view showing a schematic configuration of an automatic compounding apparatus 1 of the present invention. The automatic blending apparatus 1 includes three blending units 2, 3, 4, a belt conveyor 5, and a position detection sensor 6. The three blending units 2, 3, and 4 are arranged side by side, and the belt conveyor 5 is disposed so as to pass below the blending units. In this embodiment, the blending unit 2 weighs the cinnabar and puts it into the crucible 7, the blending unit 3 weighs the borax and throws it into the crucible 7, and the blending unit 4 weighs the lead oxide and throws it into the crucible 7. Is configured to do.

自動調合装置１では、ベルトコンベア５の上流側５ａの位置に乗せられたルツボ７がベルトコンベア５により、図１の右側へ移動していく。ルツボ７が調合ユニット２の投入口とルツボ７の口が合致する位置（図１中の５ｂ）に到達すると、ベルトコンベア５が一端停止し、調合ユニット２から硅砂の投入が行われる。   In the automatic blending apparatus 1, the crucible 7 placed on the upstream side 5 a of the belt conveyor 5 moves to the right side in FIG. 1 by the belt conveyor 5. When the crucible 7 reaches a position (5b in FIG. 1) where the charging port of the blending unit 2 and the mouth of the crucible 7 match, the belt conveyor 5 stops and the dredged sand is charged from the blending unit 2.

調合ユニット２における硅砂の投入が終了すると、ベルトコンベア５が作動する。続いて、ルツボ７が調合ユニット３の投入口とルツボ７の口が合致する位置（図１中の５ｃ）に到達すると、ベルトコンベア５が一端停止し、調合ユニット３からホウ砂の投入が行われる。   When the introduction of the cinnabar in the blending unit 2 is completed, the belt conveyor 5 is activated. Subsequently, when the crucible 7 reaches a position (5c in FIG. 1) where the inlet of the blending unit 3 and the mouth of the crucible 7 match, the belt conveyor 5 stops and the borax is thrown from the blending unit 3. Is called.

調合ユニット３におけるホウ砂の投入が終了すると、再び、ベルトコンベア５が作動する。ルツボ７が調合ユニット４の投入口とルツボ７の口が合致する位置（図１中の５ｄ）に到達すると、ベルトコンベア５が停止し、調合ユニット４から酸化鉛の投入が行われる。その後、調合ユニット４における酸化鉛の投入が終了すると、再び、ベルトコンベア５が作動し、ルツボ７は下流側５ｅまで送られる。ベルトコンベア５に乗って移動するルツボ７は、位置検出センサ６により正確な位置が把握され、ルツボ７が正確に５ｂ、５ｃ、５ｄで停止するようにベルトコンベア５が制御されている。   When the introduction of borax in the blending unit 3 is completed, the belt conveyor 5 is activated again. When the crucible 7 reaches a position (5d in FIG. 1) where the charging port of the blending unit 4 and the mouth of the crucible 7 match, the belt conveyor 5 stops and lead oxide is charged from the blending unit 4. Thereafter, when the lead oxide is completely charged in the blending unit 4, the belt conveyor 5 is operated again, and the crucible 7 is sent to the downstream side 5e. The accurate position of the crucible 7 that moves on the belt conveyor 5 is grasped by the position detection sensor 6, and the belt conveyor 5 is controlled so that the crucible 7 stops accurately at 5b, 5c, and 5d.

下流側５ｅに到達したルツボ７は、６０個のルツボを収納できるパレット８を搭載した台車９上に移される。台車９に搭載されたルツボ７は分析処理の工程へ送られる。   The crucible 7 that has reached the downstream side 5e is moved onto a carriage 9 on which a pallet 8 that can store 60 crucibles is mounted. The crucible 7 mounted on the carriage 9 is sent to the analysis process.

次に、調合ユニット２の構造とルツボ７への粉体の投入について説明する。図２は、調合ユニット２を示した説明図である。調合ユニット２は、ディスクフィーダ２１を備えている。ディスクフィーダ２１は、ホッパ部２２と、切出し部２３と、を有している。また、ホッパ部２２には、乾燥空気供給部２４が接続されている。   Next, the structure of the blending unit 2 and the charging of the powder into the crucible 7 will be described. FIG. 2 is an explanatory view showing the blending unit 2. The blending unit 2 includes a disc feeder 21. The disc feeder 21 has a hopper portion 22 and a cutout portion 23. A dry air supply unit 24 is connected to the hopper unit 22.

ホッパ部２２は、有価金属の定量分析に使用される融剤を収納する。本実施例では、ホッパ部２２に、水分１％以下、粒度０．０５ｍｍ以下、かさ比重１．３であって、粒子の細かい硅砂が蓄えられている。ホッパ部２２の容量は３リットル程度である。   The hopper 22 stores a flux used for quantitative analysis of valuable metals. In the present embodiment, the hopper portion 22 stores fine sand with fine particles having a water content of 1% or less, a particle size of 0.05 mm or less, and a bulk specific gravity of 1.3. The capacity of the hopper 22 is about 3 liters.

切出し部２３は、ホッパ部２２の下方に配置された調圧室２５に接続されている。ホッパ部２２内に蓄えられた硅砂は、ホッパ部２２の下部に備えられた攪拌羽根（図示しない）により、攪拌されるとともに、ホッパ部２２の底面に設けられた通過孔を通り、調圧室２５へと送られる。調圧室２５内で硅砂はかさ密度を一定に保たれ、単位時間当たり一定量の硅砂が切出し部２３へ供給される。このように構成されたホッパ部２２から切出し部２３までの間は、密閉された状態で接続されている。   The cutout portion 23 is connected to a pressure regulating chamber 25 disposed below the hopper portion 22. The dredged sand accumulated in the hopper 22 is agitated by a stirring blade (not shown) provided in the lower part of the hopper 22 and passes through a passage hole provided in the bottom surface of the hopper 22, thereby adjusting the pressure. 25. In the pressure adjusting chamber 25, the sand density is kept constant, and a constant amount of sand is supplied to the cutting unit 23 per unit time. The space between the hopper portion 22 and the cutout portion 23 configured as described above is connected in a sealed state.

図３は、切出し部２３の概略構成を示した説明図である。切出し部２３は、密閉空間内で硅砂を切り出す。硅砂は、回転ディスクの外周上部の切り欠き部２３ａに充満され、ディスクの回転により出口部２３ｂのスクレーパ２３ｃにかき出されて排出される。このような切出し部２３は、塊状の処理物を破砕できるため、秤量時に団塊が混在することを抑制し、秤量誤差を抑えることができる。   FIG. 3 is an explanatory diagram showing a schematic configuration of the cutout portion 23. The cutout part 23 cuts the sand from the sealed space. The dredged sand is filled in the notch 23a at the upper outer periphery of the rotating disk, and is scraped out and discharged to the scraper 23c of the outlet 23b by the rotation of the disk. Since such a cutout part 23 can crush a lump-like processed material, it can suppress that a baby boom is mixed at the time of weighing, and can suppress a weighing error.

乾燥空気供給部２４は、エアドライヤと接続されてホッパ部２２内へ乾燥空気を供給する。ホッパ部２２内へ供給する乾燥空気は、ホッパ部２２内を乾燥した状態に維持するとともに、ホッパ部２２内に気流を起こし、ホッパ部２２内における粉体の付着を緩和する。   The dry air supply unit 24 is connected to an air dryer and supplies dry air into the hopper unit 22. The dry air supplied into the hopper unit 22 maintains the hopper unit 22 in a dry state, causes an air flow in the hopper unit 22, and relieves adhesion of powder in the hopper unit 22.

このようなディスクフィーダ２１では、ホッパ部２２から切出し部２３までの間が密閉空間となっているため、切出し時に硅砂が飛散、落鉱するおそれがない。また、ディスクフィーダ２１から排出された硅砂も乾燥空気供給部２４により乾燥空気が送られるため、硅砂が乾燥した状態のままその後の処理が行われる。さらに、従来、ベルトフィーダ及び振動フィーダの各装置の動作により切出しに要する時間を費やしていた調合装置に比べ、ディスクフィーダ２１のみで切出しを行うため、短時間で切出しすることができる。   In such a disc feeder 21, since the space between the hopper portion 22 and the cutout portion 23 is a sealed space, there is no possibility that dredged sand will scatter or fall during the cutout. In addition, since the dry air is also sent from the dry air supply unit 24 by the dry air supplied from the disc feeder 21, the subsequent processing is performed while the dry sand is in a dry state. Furthermore, since the cutting is performed only by the disc feeder 21 as compared with the blending device that conventionally takes time required for cutting by the operation of each device of the belt feeder and the vibration feeder, the cutting can be performed in a short time.

さらに、調合ユニット２は、秤量部２６、投入部２７を備えている。秤量部２６は、ディスクフィーダ２１の切出し部２３の出口に接続されている。切出し部２３により切り出された硅砂は、秤量部２６へ投入される。秤量部２６へ投入された硅砂は、秤量部２６に備えられたロードセル２６ａにより重量を検知され、秤量される。ディスクフィーダ２１と秤量部２６との間は、密閉された構成となっているため、硅砂の飛散が抑制され、秤量誤差が抑えられている。   Furthermore, the blending unit 2 includes a weighing unit 26 and a loading unit 27. The weighing unit 26 is connected to the outlet of the cutout unit 23 of the disc feeder 21. The cinnabar sand cut out by the cutout unit 23 is put into the weighing unit 26. The dredged sand introduced into the weighing unit 26 is weighed by the load cell 26a provided in the weighing unit 26. Since the disc feeder 21 and the weighing unit 26 are hermetically sealed, scattering of dredged sand is suppressed and weighing errors are suppressed.

投入部２７は、秤量部２６の出口に近接して接続されている。投入部２７は、ルツボ７へ硅砂を投入する際、投入口２７ａをルツボ７の口に近接させる。秤量部２６で秤量された硅砂は、投入部２７を通り、ルツボ７へ投入される。このように投入部２７は、秤量部２６との間、ルツボ７との間を近接して粉体の飛散を抑制し、秤量誤差を抑制している。   The input unit 27 is connected in proximity to the outlet of the weighing unit 26. The throwing unit 27 brings the throwing port 27 a close to the mouth of the crucible 7 when throwing sand into the crucible 7. The cinnabar sand weighed by the weighing unit 26 passes through the loading unit 27 and is loaded into the crucible 7. In this manner, the charging unit 27 is close to the weighing unit 26 and the crucible 7 so as to suppress powder scattering and suppress weighing errors.

また、投入部２７には、ガス吸引部２８が備えられている。ガス吸引部２８は、パイプ２９により集塵機と接続されており、飛散する粉末状の硅砂を秤量誤差の許される範囲で吸引できるようになっている。   Further, the charging unit 27 is provided with a gas suction unit 28. The gas suction unit 28 is connected to a dust collector by a pipe 29 so that the powdered crushed sand can be sucked within a range in which a weighing error is allowed.

また、硅砂は粒子が細かいため、秤量部２６において舞い上がり、秤量部２６や投入部２７の壁面に付着することがある。このように投入部２７に付着した粉体は、ホッパーゲート（図示しない）の開閉による振動により、落下させることができる。このようなホッパーゲートの開閉数は、任意に変更することができる。また、投入部２７にエアバイブレータを装着し、内部に付着した粉体をエアバイブレータの振動により、落下させて秤量誤差を抑制しても良い。これにより、装置内の壁面への付着による秤量誤差を抑制できる。   In addition, since the fine sand particles are fine, they may rise in the weighing unit 26 and adhere to the wall surfaces of the weighing unit 26 and the charging unit 27. Thus, the powder adhering to the charging unit 27 can be dropped by vibration caused by opening and closing of a hopper gate (not shown). The number of open / closed hopper gates can be arbitrarily changed. Further, an air vibrator may be attached to the charging unit 27, and the powder adhered to the inside may be dropped by vibration of the air vibrator to suppress the weighing error. Thereby, the weighing error by adhesion to the wall surface in an apparatus can be suppressed.

次に、調合ユニット３、調合ユニット４について説明する。図４は、自動調合装置１の調合ユニット部、すなわち、調合ユニット２、調合ユニット３、調合ユニット４を並べて配置した状態を示した説明図である。図４の調合ユニット２は、図２の矢示Ａの方向から見た状態で表しており、調合ユニット３、調合ユニット４もそれに準じている。   Next, the blending unit 3 and the blending unit 4 will be described. FIG. 4 is an explanatory diagram showing a state where the blending unit portion of the automatic blending apparatus 1, that is, the blending unit 2, the blending unit 3, and the blending unit 4 are arranged side by side. The blending unit 2 in FIG. 4 is shown as viewed from the direction of arrow A in FIG. 2, and the blending unit 3 and the blending unit 4 are in conformity thereto.

調合ユニット３は、調合ユニット２と同様の構成をしている。但し、調合ユニット３は、ホッパ部２２に蓄える粉体を、水分１％以下、粒度０．１ｍｍ以下、かさ比重０．８であって、付着性があり、水溶性、吸湿性の高いホウ砂とした点で調合ユニット２と相違している。なお、調合ユニット３の構成は調合ユニット２の構成と同様であるため、調合ユニット３の構成の説明は省略する。   The blending unit 3 has the same configuration as the blending unit 2. However, the blending unit 3 is a borax that has a water content of 1% or less, a particle size of 0.1 mm or less, and a bulk specific gravity of 0.8. This is different from the blending unit 2. In addition, since the structure of the preparation unit 3 is the same as that of the preparation unit 2, description of the structure of the preparation unit 3 is abbreviate | omitted.

ホウ砂は吸湿性があるため、棚吊りや塊状になることによる詰りの原因となりやすいが、調合ユニット３のホッパ部２２内には、乾燥空気供給部２４により乾燥空気が供給されるため、ホウ砂は乾燥状態で維持され、棚吊りや詰りが抑制される。また、調合ユニット２と同様に、ホッパ部２２から投入部２７まで密閉されて、外部へのホウ砂の飛散が抑制されるため、秤量誤差が抑制される。   Since borax is hygroscopic, it tends to cause clogging due to shelves and lumps, but dry air is supplied into the hopper portion 22 of the blending unit 3 by the dry air supply unit 24. The sand is kept dry, and shelves and clogging are suppressed. Moreover, since the hopper part 22 is sealed from the injection | throwing-in part 27 similarly to the mixing unit 2, and scattering of the borax to the outside is suppressed, a weighing error is suppressed.

調合ユニット４は、調合ユニット２と同様の構成をしているが、以下の３点で相違している。１点目は、ディスクフィーダ４１が調合ユニット２のディスクフィーダ２１と比べて大きく、ディスクフィーダ４１のホッパ部４２の容量は２０リットル程度である。２点目は、乾燥空気供給部２４が備えられていない点である。３点目は、ホッパ部４２に蓄える水分１％以下、粒度０．１ｍｍ以下、かさ比重３であって、付着性のある酸化鉛とした点である。   The blending unit 4 has the same configuration as the blending unit 2, but differs in the following three points. The first point is that the disc feeder 41 is larger than the disc feeder 21 of the blending unit 2 and the capacity of the hopper portion 42 of the disc feeder 41 is about 20 liters. The second point is that the dry air supply unit 24 is not provided. The third point is that the water content stored in the hopper portion 42 is 1% or less, the particle size is 0.1 mm or less, the bulk specific gravity is 3, and the lead oxide is adhesive.

調合ユニット４のホッパ部４２が調合ユニット２のホッパ部２２よりも大きいのは、酸化鉛の切出し量が、硅砂、ホウ砂の数倍となることがあり、ホッパ部４２内の蓄積量を多くするためである。また、乾燥空気供給部２４を備えていないのは、酸化鉛に吸湿性がなく、棚吊りを起こすことが少ないからである。また、調合ユニット２と同様に、ガス吸引部２８がパイプ２９により集塵機と接続されており、飛散する粉末状の酸化鉛が吸引される。これにより、毒性のある酸化鉛のルツボ７への投入時の飛散を特に防止することができる。その他の構成は、調合ユニット２と同様であるため、その詳細な説明は省略する。調合ユニット４も、ホッパ部４２から投入部２７までの間を密閉した構成により秤量誤差を抑制することができる。   The reason why the hopper part 42 of the blending unit 4 is larger than the hopper part 22 of the blending unit 2 is that the amount of lead oxide cut out may be several times that of dredged sand and borax, and the accumulated amount in the hopper part 42 is large. It is to do. Further, the reason why the dry air supply unit 24 is not provided is that lead oxide has no hygroscopic property and rarely causes shelf hanging. Similarly to the blending unit 2, the gas suction unit 28 is connected to the dust collector by the pipe 29, and the powdered lead oxide that is scattered is sucked. Thereby, the scattering at the time of throwing in the toxic lead oxide into the crucible 7 can be particularly prevented. Since the other structure is the same as that of the preparation unit 2, the detailed description is abbreviate | omitted. The blending unit 4 can also suppress weighing errors due to the configuration in which the space from the hopper portion 42 to the charging portion 27 is sealed.

このような調合ユニット２、調合ユニット３の切出し量はそれぞれ、７〜２０ｇ、調合ユニット４の切出し量は、３０〜２５０ｇであり、これらの調合ユニットは、切出し量を１ｇ単位で変えることができる。なお、調合ユニット２、調合ユニット３にガス吸引部２９を設けても良いし、調合ユニット４に乾燥空気供給部２４を設けても良い。   The cutout amounts of the blending unit 2 and the blending unit 3 are 7 to 20 g, respectively, and the cutout amount of the blending unit 4 is 30 to 250 g. These blending units can change the cutout amount in units of 1 g. . In addition, the gas suction part 29 may be provided in the preparation unit 2 and the preparation unit 3, and the dry air supply part 24 may be provided in the preparation unit 4.

これらの調合ユニット２、調合ユニット３、調合ユニット４により、ルツボ７内へ秤量された硅砂、ホウ砂、酸化鉛が投入され調合される。また、自動調合装置１は、ベルトコンベア５を逆転させて、酸化鉛、ホウ砂、硅砂の順にルツボ７へ投入する構成としても良い。また、調合ユニット２、４の配置を、入れ替えて、酸化鉛、ホウ砂、硅砂の順にルツボ７へ投入する構成としても良い。   By these blending unit 2, blending unit 3 and blending unit 4, weighed cinnabar sand, borax and lead oxide are put into the crucible 7 and blended. Moreover, the automatic compounding apparatus 1 is good also as a structure which reverse | inverts the belt conveyor 5 and throws into the crucible 7 in order of lead oxide, borax, and cinnabar. Moreover, it is good also as a structure which replaces arrangement | positioning of the blending units 2 and 4 and throws into the crucible 7 in order of lead oxide, borax, and cinnabar.

自動調合装置１は、ルツボ７への調合処理を１日あたり約５００個行うことが可能である。従来では、秤量誤差、粉体の飛散、落鉱が生じることから、硅砂、ホウ砂の調合は、人手により行われていたが、本発明の自動調合装置１の調合ユニット２、調合ユニット３、調合ユニット４は、秤量誤差、粉体の飛散、落鉱が抑制されるため、硅砂、ホウ砂の調合の自動化が可能となった。これにより、従来、それぞれ別々に行われていた酸化鉛、硅砂、ホウ砂の調合を、自動調合装置１では同時に行うことができるようになった。これにより、１日あたり約１．５時間の人手による作業負担を削減することができた。さらに、従来の切出し秤量装置では、ルツボ１個あたりの調合に７７秒かかっていたところ、自動調合装置１では、ルツボ１個あたりの調合を４８秒で行うことができるようになった。したがって、調合に要する時間を約４０％短縮することができた。   The automatic compounding apparatus 1 can perform about 500 compounding processes to the crucible 7 per day. Conventionally, since the weighing error, powder scattering, and ore falling occur, the mixing of dredged sand and borax has been performed manually, but the mixing unit 2 and the mixing unit 3 of the automatic mixing apparatus 1 of the present invention, The blending unit 4 is capable of automating the blending of dredged sand and borax because weighing errors, powder scattering, and falling ore are suppressed. As a result, the automatic compounding apparatus 1 can simultaneously mix lead oxide, cinnabar sand, and borax, which have been conventionally performed separately. As a result, it was possible to reduce the manual work load of about 1.5 hours per day. Furthermore, in the conventional cut-out weighing device, it took 77 seconds to prepare one crucible. However, in the automatic compounding device 1, preparation per one crucible can be performed in 48 seconds. Therefore, the time required for blending could be reduced by about 40%.

本発明の自動調合装置の概略構成を示した説明図である。It is explanatory drawing which showed schematic structure of the automatic compounding apparatus of this invention. 実施例において硅砂を調合する調合ユニットを示した説明図である。It is explanatory drawing which showed the preparation unit which mixes cinnabar in an Example. 調合ユニットの切出し部の概略構成を示した説明図である。It is explanatory drawing which showed schematic structure of the extraction part of a mixing unit. 自動調合装置の調合ユニット部、すなわち、硅砂を調合する調合ユニット、ホウ砂を調合する調合ユニット、酸化鉛を調合する調合ユニットを並べて配置した状態を示した説明図である。It is explanatory drawing which showed the state which arrange | positioned the mixing unit part of the automatic compounding apparatus, ie, the mixing unit which mixes cinnabar, the mixing unit which mixes borax, and the mixing unit which mixes lead oxide.

符号の説明Explanation of symbols

１ 自動調合装置
２、３、４ 調合ユニット
２１ ディスクフィーダ
２２ ホッパ部
２３ 切出し部
２４ 乾燥空気供給部
２５ 調圧室
２６ 秤量部
２６ａ ロードセル
２７ 投入部
２８ ガス吸引部 DESCRIPTION OF SYMBOLS 1 Automatic compounding apparatus 2, 3, 4 Compounding unit 21 Disc feeder 22 Hopper part 23 Cutting part 24 Dry air supply part 25 Pressure regulation chamber 26 Weighing part 26a Load cell 27 Input part 28 Gas suction part

Claims (4)

付着性を有する粉体を蓄えるホッパ部と、
当該ホッパ部内へ乾燥空気を供給する乾燥空気供給部と、
前記ホッパ部の出口側に配置され、前記粉体を切り出す切出し部と、
当該切出し部の出口側に配置され、切り出された前記粉体を秤量する秤量部と、
当該秤量部の出口側に配置され、ルツボの口に近接して前記粉体をルツボへ投入する投入部と、
を備え、前記ホッパ部から前記投入部は、前記粉体が外部へ飛散しないように密閉されていることを特徴とする調合ユニット。 A hopper that stores powder having adhesive properties;
A dry air supply unit for supplying dry air into the hopper,
A cut-out portion that is disposed on the outlet side of the hopper portion and cuts out the powder;
A weighing unit arranged on the outlet side of the cut-out part and weighing the cut-out powder;
An input unit that is disposed on the outlet side of the weighing unit and that inputs the powder into the crucible in the vicinity of the crucible mouth;
The blending unit is characterized in that the hopper portion to the charging portion are sealed so that the powder does not scatter to the outside. 請求項１記載の調合ユニットを複数備え、前記調合ユニットのホッパ部のそれぞれに異なる粉体を蓄え、複数の粉体を前記ルツボに投入することを特徴とする自動調合装置。   An automatic blending apparatus comprising a plurality of blending units according to claim 1, storing different powders in each of the hopper portions of the blending unit, and putting the plurality of powders into the crucible. 前記粉体が硅砂であり、硅砂をルツボへ投入する請求項１記載の調合ユニットと、
前記粉体がホウ砂であり、ホウ砂をルツボへ投入する請求項１記載の調合ユニットと、
酸化鉛を蓄えるホッパ部と、当該ホッパ部の出口側に配置され、前記酸化鉛を切り出す切出し部と、当該切出し部の出口側に配置され、切り出された前記酸化鉛を秤量する秤量部と、当該秤量部の出口側に配置され、ルツボの口に近接して前記酸化鉛をルツボへ投入する投入部と、を備え、前記ホッパ部から前記投入部が、前記酸化鉛が外部へ飛散しないように密閉されている調合ユニットと、
を並べて設置し、コンベア上に配置したルツボへ硅砂、ホウ砂、酸化鉛を投入することを特徴とした自動調合装置。 The blending unit according to claim 1, wherein the powder is cinnabar, and the cinnabar is charged into a crucible.
The blending unit according to claim 1, wherein the powder is borax, and the borax is charged into a crucible.
A hopper part for storing lead oxide, an outlet side of the hopper part, a cutout part for cutting out the lead oxide, a weighing part arranged on the outlet side of the cutout part and weighing the extracted lead oxide; And a charging section that is disposed on the outlet side of the weighing section and that is close to the crucible mouth and feeds the lead oxide into the crucible, and the charging section prevents the lead oxide from scattering to the outside from the hopper section. A compounding unit sealed in
Are placed side by side, and dredged sand, borax, and lead oxide are put into crucibles placed on a conveyor. 正転及び逆転して、ルツボを前記各調合ユニットの投入部の下方に搬送するコンベアを備え、コンベアが正転する場合に、ルツボへ酸化鉛、ホウ砂、硅砂の順に投入し、ルツボへコンベアが逆転する場合に、硅砂、ホウ砂、酸化鉛の順に投入することを特徴とした請求項３記載の自動調合装置。   It is equipped with a conveyor that forwards and reverses and conveys the crucible to the lower part of each mixing unit. When the conveyor rotates in the forward direction, lead oxide, borax, and cinnabar are introduced into the crucible in that order, and the crucible is conveyed to the crucible. 4. The automatic compounding device according to claim 3, wherein in the reverse direction, dredged sand, borax, and lead oxide are introduced in this order.
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