化学工業用シリコンの製錬プロセス
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化学工業用シリコンの製錬プロセス

化学工業用シリコンの製錬プロセス

粒度: 顧客の要件に応じてカスタマイズ梱包: 大量の袋、ドラム缶など

説明

 

製品説明

化学用途のシリコンの技術プロセスには、炉装入準備、電気炉製錬、シリコンの精製と鋳造、スラグ混入物を除去するための粉砕が含まれます。 すべての原材料は、装入物を準備する前に必要な処理を受けなければなりません。 シリカをジョークラッシャーで100mm以下まで粉砕し、5mm以下のものをふるい分けし、水洗する。 炉内の破片が炉上部で溶けるため、装入物のガス透過性が低下し、製造工程が困難になります。 石油コークスは比較的導電率が高いため、10mm以下の大きさに砕き、石油コークス粉末の量を管理する必要があります。 炉口で直接燃焼するため、還元剤不足の原因となります。

 

化学シリコンの生産において、湖南株州精製瀝青炭などの瀝青炭は完全に木炭に取って代わることができ、固定炭素は77.19パーセントに達し、揮発分は19.4パーセント、灰分は3.41パーセント、Fe2O3含有量は{{8 }}.22 パーセント、Al2O3 含有量は 0.99 パーセント、CaO 含有量は 0.17 パーセントです。 。 生産慣行によれば、この種の瀝青炭を使用して化学シリコンを製錬することが可能である。

 

化学用シリコン製造用のブロックやチップは木材切断機やウッドチッパーで加工されます。 炉装入物中の炭素質還元剤は主に石油コークスと瀝青炭であり、木片と木片の量は炉の条件によって異なります。 製造時に木材を使用しておりませんが、製品の品質はより安定しています。 料金の割合は、生産する製品のグレードに応じて決定されます。 石油コークスと瀝青炭の割合は、シリコン鉱石の各バッチに必要な炭素の量に応じて決定されます。 石油コークスと瀝青炭の比率は装入物の作動抵抗に大きな影響を与えます。

 

炉装入物の各成分の重量を量った後、装入物は均一に混合され、炉が粉砕された後、均一に混合された装入物が炉に加えられます。 材料表面を一定の高さを保ち、均一に送ります。

 

化学シリコンの生産は継続的に行われています。 炉内の状態も永遠ではありません。 化学シリコンの製造は、電気炉内で電気エネルギーを熱エネルギーに変換し、その熱エネルギーを利用して材料を直接加熱して化学反応を起こすプロセスです。 したがって、炉内の電気的特性は非常に重要です。 製錬操業は炉内を高温に保ち、熱効率を向上させ、電気炉の稼働率を向上させるためクローズドアークで行われます。 研究では、容量3200KVAと6300KVAの金属シリコン炉を使用します。 製錬は一定時間の煮込みと定期的な集中投入により行われます。 通常の状況では、チャージが自動的に沈むことは困難であり、通常はチャージを強制的に沈める必要があります。 炉の状態は変動しやすく、制御が難しい。 したがって、本番では正しく判断し、時間内に対処する必要があります。 炉は精練と鋳造のために 4 時間ごとに点火され、スラグは砕かれて保管場所に分類されます。

 

Smelting process of silicon for chemical industry  The technological process of silicon for chemical use includes furnace charge preparation, electric furnace smelting, silicon refining and casting, and crushing for removing slag inclusions. All raw materials must undergo necessary treatment before the charge is prepared. The silica is crushed in the jaw crusher until the size of the pieces is not more than 100mm, and the pieces smaller than 5mm are screened out and washed with water. Because the fragments in the furnace are melted in the upper part of the furnace, the gas permeability of the charge is reduced, making the production process difficult. Petroleum coke has a relatively high electrical conductivity, so it must be broken to a size of no more than 10mm, and the amount of petroleum coke powder must be controlled. Because it burns directly on the furnace mouth, it will cause insufficient reducing agent.  In the production of chemical silicon, bituminous coal can completely replace charcoal, such as Hunan Zhuzhou refined bituminous coal, the fixed carbon reaches 77.19%, the volatile matter is 19.4%, the ash content is 3.41%, the Fe2O3 content is 0.22%, the Al2O3 content is 0.99%, and the CaO content is 0.17%. . According to production practice, it is feasible to use this kind of bituminous coal to smelt chemical silicon.  Blocks and chips for the production of silicon for chemical use are processed with timber cutters and wood chippers. The carbonaceous reducing agent in the furnace charge is mainly petroleum coke and bituminous coal, and the amount of wood blocks and wood chips depends on the furnace conditions. Wood is not used in production, but the product quality is more stable. The ratio of the charge is determined according to the grade of the product required to be produced. The proportion of petroleum coke and bituminous coal is determined according to the amount of carbon required for each batch of ore silicon. The ratio of petroleum coke and bituminous coal has a great influence on the working resistance of the charge.  After each component of the furnace charge is weighed, the charge is mixed evenly, and after the furnace is pounded, the uniformly mixed charge is added to the furnace. Keep a certain height of the material surface and feed evenly.  Chemical silicon production is continuous. The conditions inside the furnace are not eternal either. Chemical silicon production is a process in which electric energy is converted into heat energy in an electric furnace, and then the heat energy is used to directly heat the material to produce a chemical reaction. Therefore, the electrical characteristics in the furnace are very important. The smelting operation is closed-arc to maintain the high temperature furnace, improve the thermal efficiency, and improve the utilization rate of the electric furnace. In the research, a metal silicon furnace with a capacity of 3200KVA and 6300KVA is used. The smelting is carried out by simmering for a certain period of time and regular concentrated feeding. Under normal circumstances, it is difficult for the charge to sink automatically, and it is generally necessary to force the charge to sink. The furnace condition is easy to fluctuate and difficult to control. Therefore, it is necessary to judge correctly and deal with it in time in production. The furnace is fired every 4 hours for scouring and casting, and the slag is broken and sorted into storage.Smelting process of silicon for chemical industry  The technological process of silicon for chemical use includes furnace charge preparation, electric furnace smelting, silicon refining and casting, and crushing for removing slag inclusions. All raw materials must undergo necessary treatment before the charge is prepared. The silica is crushed in the jaw crusher until the size of the pieces is not more than 100mm, and the pieces smaller than 5mm are screened out and washed with water. Because the fragments in the furnace are melted in the upper part of the furnace, the gas permeability of the charge is reduced, making the production process difficult. Petroleum coke has a relatively high electrical conductivity, so it must be broken to a size of no more than 10mm, and the amount of petroleum coke powder must be controlled. Because it burns directly on the furnace mouth, it will cause insufficient reducing agent.  In the production of chemical silicon, bituminous coal can completely replace charcoal, such as Hunan Zhuzhou refined bituminous coal, the fixed carbon reaches 77.19%, the volatile matter is 19.4%, the ash content is 3.41%, the Fe2O3 content is 0.22%, the Al2O3 content is 0.99%, and the CaO content is 0.17%. . According to production practice, it is feasible to use this kind of bituminous coal to smelt chemical silicon.  Blocks and chips for the production of silicon for chemical use are processed with timber cutters and wood chippers. The carbonaceous reducing agent in the furnace charge is mainly petroleum coke and bituminous coal, and the amount of wood blocks and wood chips depends on the furnace conditions. Wood is not used in production, but the product quality is more stable. The ratio of the charge is determined according to the grade of the product required to be produced. The proportion of petroleum coke and bituminous coal is determined according to the amount of carbon required for each batch of ore silicon. The ratio of petroleum coke and bituminous coal has a great influence on the working resistance of the charge.  After each component of the furnace charge is weighed, the charge is mixed evenly, and after the furnace is pounded, the uniformly mixed charge is added to the furnace. Keep a certain height of the material surface and feed evenly.  Chemical silicon production is continuous. The conditions inside the furnace are not eternal either. Chemical silicon production is a process in which electric energy is converted into heat energy in an electric furnace, and then the heat energy is used to directly heat the material to produce a chemical reaction. Therefore, the electrical characteristics in the furnace are very important. The smelting operation is closed-arc to maintain the high temperature furnace, improve the thermal efficiency, and improve the utilization rate of the electric furnace. In the research, a metal silicon furnace with a capacity of 3200KVA and 6300KVA is used. The smelting is carried out by simmering for a certain period of time and regular concentrated feeding. Under normal circumstances, it is difficult for the charge to sink automatically, and it is generally necessary to force the charge to sink. The furnace condition is easy to fluctuate and difficult to control. Therefore, it is necessary to judge correctly and deal with it in time in production. The furnace is fired every 4 hours for scouring and casting, and the slag is broken and sorted into storage.

 

製品内容
製品グレード 化学組成 化学組成 化学組成 化学組成
    不純物(パーセント) 不純物(パーセント) 不純物(パーセント)
  Si含有量(パーセント) 鉄 アル Ca
1101 99.79 0.1 0.1 0.01
2202 99.58 0.2 0.2 0.02
2502 99.48 0.25 0.25 0.02
3303 99.37 0.3 0.3 0.03
411 99.4 0.4 0.1 0.1
421 99.3 0.4 0.2 0.1
441 99.1 0.4 0.4 0.1
551 98.9 0.5 0.5 0.1
553 98.7 0.5 0.5 0.3
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