BLAST FURNACE OPERATION UNDER ELEVATED TOP PRESSURE

الموضوعات

علوم بحتة وطبيعية

العلوم الاجتماعية › العلوم الاقتصادية › الانتاج › الصناعة · العلوم البحتة(الطبيعية) › الكيمياء والعلوم المتصلة بها › الكيمياء غير العضوية › الحديد · العلوم التطبيقية والتكنولوجيا › الهندسة الكيميائية › التعدين › افران الصهر · العلوم التطبيقية والتكنولوجيا › الهندسة الكيميائية › التعدين › الصلب

الملخص

This diploma project consists of five parts including general : theory and practice blast furnace operation under elevated top pressure : Experimental part and also economics and safety engineering . In general part the technological parameters of blast furnace operation were calculated with using Baharia ores . They are composition and yield of sinter : coke consumption per one ton of pig iron : consumption of sinter : slag and pig iron compositions : consumption of blast : composition and yield of top gas : material balance : heat balance . in the second part the effect of elevated top pressure on chemical and physical process was discussed . it was established : Under elevated top pressure velocity of gases is decreased in the blast furnace and period of contact between the gas and iron beering materials is increased . due to this reason the process of iron oxide reduction by gases is accelerated and decreasing of coke consumption is possible . The increase of gas density due to elevated top pressure provides the uniform distribution of gases and complete utilization of their heat and reducing energy that causes the coke rate decreasing . increasing of blast quantity up to the magnitude providing the same velocity of gas as under usual operation provides intensification of the blast furnace melt . Due to above mentioned reasons application of elevated top pressure up to 0.8 - 1.0 at provides the increasing of productivity of blast furnace by 5- 8 % and coke rate decreasing by 0.5 + 2.5 according to local conditions . In the third part the reasons of blast furnace productivity increasing were analysed . the analysis was done theoretically with the main formulas of aerodynamics . it was established that differential pressure in the blast furnace charge has been inversely proportion to pressure . The phenomena was investigated experimentally one laboratory scale plant specially constructed for this purpose . There were investigated effect of size of materials and content of fines in charge on the magnitude of differential pressure . it was shown , that effect of elevated top pressure has been more on charge with high content of fines . On applying the formulas of aerodynamics and results of experiments the maximum degree of blast furnace intensification by elevated top pressure was calculated according to the charge quality expressed by difference in the differential pressure . In economics part the effect of elevated top pressure on decreasing of price of pig iron was calculated , when the productivity of blast furnace was increased by 5% and coke rate was decreased by 0.5 % . in safety engineering part the safety measures of blast furnace stopping were discussed .

روابط وملفات

التعريف والنوع

رقم الوثيقة

10138

رقم المصدر

122144

رمز المصدر

BK00010138-001

رقم العقد

340

نوع الوسائط

AskZad

نوع المحتوى

الرسائل العلمية

صيغة المصدر

رسائل ماجيستير

نوع الملف

ورقي

أسماء الملفات

11221440001.pdf

بيانات النشر

ترجمة العنوان

عملية الافران العالية تحت الضغط العإلى المرتفع

ألقاب المؤلفين

[{"name_ar":"Kovalyov","name_en":"Kovalyov","title_ar":"اشراف","title_en":"Supervision"},{"name_ar":"سالم محمد عبدالهادي","name_en":"Salem Muhammad Abdel Hady","title_ar":"مؤلف","title_en":"Author"}]

اللغة

Arabic

المصدر والدورية

اسم المصدر

BLAST FURNACE OPERATION UNDER ELEVATED TOP PRESSURE

المحتوى والصفحات

عدد الصفحات

162

رقم الجزء

0

أبعاد الوثيقة

20 × 30

الموضوعات الرئيسية

العلوم الاجتماعية › العلوم الاقتصادية › الانتاج › الصناعة · العلوم البحتة(الطبيعية) › الكيمياء والعلوم المتصلة بها › الكيمياء غير العضوية › الحديد · العلوم التطبيقية والتكنولوجيا › الهندسة الكيميائية › التعدين › افران الصهر · العلوم التطبيقية والتكنولوجيا › الهندسة الكيميائية › التعدين › الصلب

كلمات مفتاحية

افران الصهر · الحديد · الصلب · الصناعة

التصنيف العام

متخصص

إشراف وإعداد

الإشراف

Kovalyov

جدول المحتويات

summary
 1
 introduction
 4
 part 1: calculation of the technological parametars of blast furance with using of baharia ores
 9
 part 2: blast furance operation under elevented  top paressurs
 55
 part 3: analysis of increassing the blast furance productivity under elevated top pressure
 101
 conclusion
 137
 part 4: economics
 139
 part 5 : safety engineering
 144
 reference
 151
 summary in arabic
 156

الاقتباسات الببليوغرافية