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Bosh sahifa - Mahsulotlar - Silikon metall - Batafsil
Kimyo sanoati uchun kremniyni eritish jarayoni
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Kimyo sanoati uchun kremniyni eritish jarayoni

Kimyo sanoati uchun kremniyni eritish jarayoni

Granularlik: mijozning talablariga muvofiq tayyorlangan Qadoqlash: tonna sumkalar, barabanlar va boshqalar.

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Mahsulotlar tavsifi

Kimyoviy foydalanish uchun kremniyning texnologik jarayoni o'choq zaryadini tayyorlash, elektr pechda eritish, kremniyni tozalash va quyish, shlak qo'shimchalarini olib tashlash uchun maydalashni o'z ichiga oladi. Zaryadni tayyorlashdan oldin barcha xom ashyo kerakli ishlov berishdan o'tishi kerak. Kremniy dioksidi jag'li maydalagichda bo'laklarning o'lchami 100 mm dan oshmaguncha eziladi va 5 mm dan kichik bo'laklar ekranlanadi va suv bilan yuviladi. Pechdagi bo'laklar pechning yuqori qismida eritilganligi sababli, zaryadning gaz o'tkazuvchanligi pasayib, ishlab chiqarish jarayonini qiyinlashtiradi. Neft koksining nisbatan yuqori elektr o'tkazuvchanligi bor, shuning uchun uni 10 mm dan ortiq bo'lmagan o'lchamlarga sindirish kerak va neft koksi kukuni miqdorini nazorat qilish kerak. To'g'ridan-to'g'ri o'choq og'zida yonishi sababli, kamaytiruvchi vositaning etishmasligiga olib keladi.

 

Kimyoviy kremniy ishlab chiqarishda bitumli ko'mir to'liq ko'mirni almashtirishi mumkin, masalan, Hunan Zhuzhou tozalangan bitumli ko'mir, qattiq uglerod 77,19 foizga, uchuvchi moddalar 19,4 foizga, kul miqdori 3,41 foizga, Fe2O3 miqdori {{8} }},22 foiz, Al2O3 miqdori 0,99 foiz va CaO miqdori 0,17 foiz. . Ishlab chiqarish amaliyotiga ko'ra, kimyoviy kremniyni eritish uchun bunday bitumli ko'mirdan foydalanish mumkin.

 

Kimyoviy foydalanish uchun kremniy ishlab chiqarish uchun bloklar va chiplar yog'och kesgichlar va yog'och kesgichlar bilan qayta ishlanadi. Olovli zaryaddagi karbonli kamaytiruvchi vosita asosan neft koks va bitumli ko'mir bo'lib, yog'och bloklari va yog'och chiplari miqdori o'choq sharoitlariga bog'liq. Yog'och ishlab chiqarishda ishlatilmaydi, lekin mahsulot sifati barqarorroq. To'lovning nisbati ishlab chiqarish uchun zarur bo'lgan mahsulot turiga qarab belgilanadi. Neft koksi va bitumli ko'mirning nisbati ruda kremniyining har bir partiyasi uchun zarur bo'lgan uglerod miqdoriga qarab belgilanadi. Neft koksi va bitumli ko'mirning nisbati zaryadning ish qarshiligiga katta ta'sir ko'rsatadi.

 

Pech zaryadining har bir komponenti tortilgandan so'ng, zaryad bir tekis aralashtiriladi va o'choq urilgandan so'ng, bir xil aralashtirilgan zaryad o'choqqa qo'shiladi. Materiallar yuzasining ma'lum bir balandligini saqlang va teng ravishda oziqlantiring.

 

Kimyoviy kremniy ishlab chiqarish uzluksiz. Pech ichidagi sharoitlar ham abadiy emas. Kimyoviy kremniy ishlab chiqarish - bu elektr energiyasini elektr pechida issiqlik energiyasiga aylantiradigan jarayon, so'ngra issiqlik energiyasi kimyoviy reaktsiyani ishlab chiqarish uchun materialni to'g'ridan-to'g'ri isitish uchun ishlatiladi. Shuning uchun o'choqdagi elektr xususiyatlari juda muhimdir. Yuqori haroratli pechni ushlab turish, issiqlik samaradorligini oshirish va elektr pechidan foydalanish darajasini yaxshilash uchun eritish jarayoni yopiq yoydir. Tadqiqotda 3200KVA va 6300KVA quvvatga ega bo'lgan metall kremniyli pech ishlatiladi. Eritma ma'lum vaqt davomida qaynatish va muntazam konsentrlangan oziqlantirish orqali amalga oshiriladi. Oddiy sharoitlarda zaryadning avtomatik ravishda cho'kishi qiyin va odatda zaryadni cho'ktirishga majbur qilish kerak. Pechning holatini o'zgartirish oson va nazorat qilish qiyin. Shuning uchun ishlab chiqarishda to'g'ri hukm qilish va u bilan o'z vaqtida shug'ullanish kerak. Olovni tozalash va quyish uchun har 4 soatda kuydiriladi, shlaklar sindiriladi va omborga saralanadi.

 

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.

 

Mahsulotlar tarkibi
Mahsulot navlari Kimyoviy tarkibi Kimyoviy tarkibi Kimyoviy tarkibi Kimyoviy tarkibi
    Nopokliklar (foiz) Nopokliklar (foiz) Nopokliklar (foiz)
  Si tarkibi (foiz) Fe Al 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
TSS

Savol: OEMni qabul qilasizmi?
Javob: Ha, biz OEMni qabul qilamiz. Bu bizning mutaxassisligimiz.

Savol: Siz zavodmisiz yoki savdo kompaniyasimi?
Javob: Biz ishlab chiqaruvchilarmiz.

Savol: Siz ishlab chiqaruvchi yoki savdogarmisiz?
Javob: Biz haqiqatan ham ishlab chiqaruvchimiz, biz nafaqat yuqori sifatli mahsulotlarni eng yaxshi narx bilan ta'minlay olamiz, balki eng yaxshi sotishdan oldingi va keyingi xizmatni ham taklif qila olamiz.

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