Shadowing Practice: What Is Basic Oxygen Furnace - Understanding the basic oxygen process. - Learn English Speaking with Video
Bir pratik modu seçin
Her mod tam ekran bir pratik odası açar.
68 cümleler
Cümleler çok kısa veya çok uzun ise, ayarlamak için Düzenle'ye tıklayın.
1
Did you know that the basic oxygen furnace can convert molten iron into steel in just 20 minutes?
2
In this video, you will learn in detail about the basic oxygen furnace, a key technology in steel production.
3
Welcome to James Sword Engineering Channel.
4
don't forget to like share comment
5
and also subscribe to the channel the basic oxygen furnace is
6
essentially a giant tank lined with refractory materials to withstand the
7
intense heat the furnace is heated to around 1700 degrees celsius
8
and then oxygen is blown to start the refining process the
9
oxygen reacts with the impurities in the steel such as carbon
10
and silicon to create a slag
11
that is removed from the furnace this leaves behind high quality
12
steel with a much lower carbon content brief history about the
13
basic oxygen furnace in the late 1940s a swiss engineer named robert dur experimented with the bessemer converter process
14
and discovered a better way to produce high quality steel faster
15
he blasted pure oxygen into the furnace instead of air
16
that contains only 20 of oxygen
17
which is used in the bessemer process he found out that oxygen removed carbon from the molten iron more effectively.
18
The process was further developed by an Austrian company called Voest, which is presently known as Voestalpine in the Austrian cities Linz and Donowitz.
19
That is why it can also be called Linz-Donowitz process or LD process.
20
How does the basic oxygen process work in steel making?
21
This steel making process begins with pig iron.
22
The pig iron is smelted in a blast furnace after
23
which it is poured into a ladle and taken to the basic oxygen furnace.
24
In this furnace, The hot metal or pig iron from the blast furnace
25
and steel scraps are charged and loaded into the furnace that is tilted about 45 degrees.
26
The converter is then placed in an upright position.
27
Oxygen is turned on and a water-cooled lance is lowered down into it.
28
The lance blows 99% pure oxygen into the charge for about 20 minutes causing oxidation of the elements.
29
The oxidation reactions in the converter cause temperatures to rise above 1700 degrees Celsius.
30
This melts the scrap and reduces the carbon content of the steel by burning it to form carbon monoxide or carbon dioxide.
31
It also creates silicon oxides and other impurities.
32
To fine-tune the steel characteristics, fluxes such as burnt lime or dolomite are added to form slag, which absorbs impurities of the steelmaking.
33
These adjustments are necessary to achieve the desired quality and ensure the steel meets specific industry standards.
34
The chemical compositions, temperature and charging weight of the iron ore are often controlled automatically by a computer.
35
The tapping process is the final part of the process, where the slag is then separated from the steel.
36
And the refined steel is transferred into the ladles for further processing or subsequent casting.
37
The two major types of basic oxygen furnaces involve these steps.
38
They include a top-blown basic oxygen furnace and a bottom-blown basic oxygen furnace.
39
A top-blown basic oxygen furnace is equipped with a water-cooled oxygen
40
lance for blowing oxygen into the pig iron through four to six nozzles.
41
A bottom-blown oxygen furnace, also known as Q-BOP, is a less common method.
42
Oxygen is injected with lime powder through the two years located at the bottom of the vessel.
43
Various parts of a basic oxygen furnace.
44
The shell, it is the main body of the basic oxygen furnace and it is made from steel.
45
It is strong, durable, and tough the shell does not melt
46
because of the refractory lining the refractory lining the refractory lining is a special type of material
47
that can reflect
48
and withstand heat the refractory lining performs two functions the first is to help retain the heat in the furnace so
49
that less energy is required to keep the furnace at operating
50
temperature the second function is to protect the steel shell from
51
the furnace heat the water cooled oxygen lance the water cooled oxygen lance provides the oxygen to the furnace.
52
The lance is watercooled so that it will not melt in the furnace.
53
The slagging hole.
54
The slagging hole is like a sprout where the slag can be poured out when necessary.
55
The tapping hole.
56
The tapping hole is used to remove the molten steel from the furnace when the desired quality has been attained.
57
The main difference between a basic oxygen furnace and the Bessemer converter is that the basic oxygen furnace uses pure oxygen,
58
while the Bessemer converter uses air, which contains nitrogen that can harm some steel grades.
59
Also, the main difference between a basic oxygen furnace
60
and an electric arc furnace is the type of raw materials they use and the process to create steel.
61
For the raw materials, the basic oxygen furnace uses molten pig iron and recycled steel, while the electric arc furnace uses recycled steel.
62
For the process, in the basic oxygen furnace, oxygen is blown to reduce the carbon content of the molten iron,
63
while an electric arc furnace uses electric arcs to melt the scrap steel.
64
Advantages of basic oxygen furnace.
65
1. Highly efficient.
66
Produces large quantities of steel in a relatively short time compared to other methods.
67
2. Lower operational costs, especially when using molten iron from a blast furnace.
68
3. Can produce a wide range of steel grades, making it suitable for various applications.
Uygulamayı İndir
Akıcı konuşmak için ihtiyacınız olan her şey
AI TelaffuzHer cümleyi puanla
IPA AlıştırmasıHer sesi ustalaştır
Kelime BilgisiKelime bankanızı oluşturun
Kelime OyunuOynarken öğrenin
FOR YOU
Video Öner
C12
245 cümleler
Power Plant | How it Works Power Plant Steam Cycle
Business EnglishUniversity StudentsWorking Adults
C11
4 cümleler
Ambr®️ 250 High Throughput Perfusion Product Tutorial - Learn with Sartorius
Business EnglishUniversity StudentsWorking Adults
C11
124 cümleler
How to Make Anything - Learn to Think Like an Engineer
Business EnglishUniversity StudentsWorking Adults
C14
139 cümleler
Introduction 2, Why "Portland" cement
Business EnglishUniversity StudentsWorking Adults
C13
50 cümleler
✅ Coil Coating Process
Business EnglishUniversity StudentsWorking Adults
C12
113 cümleler
What Are PCB and PCBA? What’s the Difference Between Them?
Business EnglishUniversity StudentsWorking Adults
C11
153 cümleler
In 9 minutes, you’ll understand breathwork better than 99% of the planet
Business EnglishUniversity StudentsWorking Adults
C115
36 cümleler
Learn English with VOA Special English - How to Make Your Own Solar Water Heater
American AccentBusiness EnglishUniversity StudentsWorking Adults
C14
82 cümleler
Elon's SpaceX Tour - Falcon 1, Falcon 9 and Dragon
Business EnglishUniversity StudentsWorking Adults
C14
132 cümleler
Intro to Pylontech’s US5000 48 Volt Lithium Battery
Business EnglishUniversity StudentsWorking Adults
C12
99 cümleler
Flow of Master B/L of Ocean Freight Forwarding by Container. Explained S/I and B/L Instruction.
Business EnglishWorking Adults
B21
4 cümleler
What do Design Managers do?
Business EnglishUniversity StudentsWorking Adults
Bu dersin kelimeleri ve konuşma notları
Bu C1 seviyesindeki konuşma dersi “What Is Basic Oxygen Furnace - Understanding the basic oxygen process” videosuna dayanıyor. En çok tekrarlanan kelimeler: furnace, oxygen, steel, process, iron. Bu videoda gölgeleme çalışması için 68 cümle ve 902 kelime var. Konuşma bölümü 5:38 sürüyor. Konuşmacı dakikada yaklaşık 160 kelimeyle, günlük konuşmaya yakın doğal bir hızda konuşuyor. Kelimelerin yalnızca %71’i İngilizcede en sık kullanılan 3.000 kelime arasında, bu yüzden kelime dağarcığı zorlayıcı.
Bu videodaki önemli kelimeler
Videodaki en ileri düzey 15 kelime, telaffuzu ve anlamıyla:
| Kelime | Telaffuz | Anlam |
|---|---|---|
| furnace isim | /ˈfɝnɪs/ | fırın, yüksek fırın |
| melt fiil | /mɛlt/ | erimek |
| lance isim | /læns/ | mızrak |
| impurity isim | /ɪmˈpjɝɪti/ | katışıklık, safsızlık |
| ladle isim | /ˈleɪ.dəl/ | kepçe |
| oxidation isim | /ɒksɪˈdeɪʃ(ə)n/ | paslanma |
| recycle fiil | /ɹəˈsaɪkəl/ | geri dönüşüm, geri dönüştürmek |
| withstand fiil | /wɪðˈstænd/ | direnmek, karşı koymak |
| lime isim | /laɪm/ | lim, misket limonu |
| silicon isim | /ˈsɪləˌkɑn/ | silisyum |
| sprout isim | /spɹaʊt/ | filiz, sürgün |
| equip fiil | /ɪˈkwɪp/ | donatmak |
| oxide isim | /ˈɑksaɪd/ | oksit |
| nitrogen isim | /ˈnaɪ.tɹə.d͡ʒən/ | azot, nitrojen |
| absorb fiil | /æbˈsɔɹb/ | absorbe etmek, soğurmak |
Duyacağınız deyimsel fiiller
| Kelime | Anlam |
|---|---|
| find out fiil | anlamak, ortaya çıkarmak |
Dikkat edilecek telaffuzlar
- Uzun kelimeler — vurguyu doğru yere koyun: refractory /ɹɪˈfɹæk.tə.ɹi/, oxidation /ɒksɪˈdeɪʃ(ə)n/, characteristic /ˌkæɹ(ə)ktəˈɹɪstɪk/
Türkçe konuşanların zorlandığı sesler:
- /w/ — dudaklar yuvarlak, /v/ değil: withstand /wɪðˈstænd/, equip /ɪˈkwɪp/, quantity /ˈkwɑn(t)ɪti/
- Kelime başındaki ünsüz kümesi — araya ünlü eklemeyin: slag /ˈslæɡ/, scrap /ˈskɹæp/, sprout /spɹaʊt/, flux /flʌks/, presently /ˈpɹɛzəntli/
- /æ/ — “e”den daha açık: slag /ˈslæɡ/, lance /læns/, refractory /ɹɪˈfɹæk.tə.ɹi/, scrap /ˈskɹæp/, withstand /wɪðˈstænd/
Bu videoyla nasıl çalışılır
- Videonun tamamını konuşmadan bir kez dinleyin ve bilmediğiniz kelimeleri not edin.
- 0,75× hızla başlayın, cümle cümle tekrar edin ve kolaylaşınca normal hıza dönün.
- Kendinizi kaydedin ve orijinaliyle karşılaştırın; furnace, melt, lance gibi kelimelere özellikle dikkat edin.
Gölgeleme Tekniği Nedir?
Gölgeleme, başlangıçta profesyonel tercüman eğitimi için geliştirilen ve çok dilli Dr. Alexander Arguelles tarafından popüler hale getirilen, bilim destekli bir dil öğrenme tekniğidir. Yöntem basit ama güçlüdür: ana dili İngilizce olan bir sesi dinler ve hemen yüksek sesle tekrar edersiniz — konuşmacıyı 1-2 saniye gecikmeyle takip eden bir gölge gibi. Pasif dinleme veya dilbilgisi alıştırmalarının aksine, gölgeleme beyninizi ve ağız kaslarınızı gerçek konuşma kalıplarını eşzamanlı olarak işlemeye ve yeniden üretmeye zorlar. Araştırmalar, telaffuz doğruluğu, tonlama, ritim, bağlı konuşma, dinleme anlama ve konuşma akıcılığını önemli ölçüde geliştirdiğini göstermektedir — bu da onu IELTS Konuşma hazırlığı ve gerçek dünya İngilizce iletişimi için en etkili yöntemlerden biri yapar.