DRI PLANT.pptx
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This presentation summarizes the DRI (Direct Reduced Iron) plant process. Key points include: - The DRI plant uses iron ore, coal, and dolomite as raw materials which are fed into a rotary kiln and reduced to sponge iron through chemical reactions. - The sponge iron is then cooled in a rotary cooler before being separated into lumps and fines in the Product Separation Building using magnetic separation and screening. - Common problems addressed include gear issues in the rotary cooler and accretion formation, which can be addressed through maintenance and using higher quality raw materials.
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Fine iron ore isn't usable for blast furnace .
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The document discusses secondary steel making and the RH degasser process at Bhilai Steel Plant in India. It provides background on steel production and details on the specific production units and processes at Bhilai Steel Plant. The key points are:
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Rashtriya Ispat Nigam Limited (RINL) owns and operates Visakhapatnam Steel Plant (VSP), India's first shore-based integrated steel plant. VSP has a production capacity of 7.3 million tonnes per annum. The plant uses iron ore, coke, dolomite and limestone as raw materials and employs various processes like coke making, sintering, blast furnace production, and rolling mills to produce finished steel products. Trainees can receive on-site training in departments like coke ovens, utilities, quality control, power plant and water management.
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This document discusses sandwich metallic thermal protection panels with periodic cellular core structures. It describes how such panels consist of high-strength facings bonded to a low-density core. The core provides shear rigidity while keeping the facings supported. Various fabrication methods are also summarized, including how the cores can be made through slotting together constituent elements or using triply periodic minimal surfaces to create repeating open-cell structures. Applications mentioned include using such panels for thermal insulation to maintain a 220C temperature difference on either side.
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【主营项目】
一.毕业证【q微741003700】成绩单、使馆认证、教育部认证、雅思托福成绩单、学生卡等！
二.真实使馆公证(即留学回国人员证明,不成功不收费)
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如果您处于以下几种情况：
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◇面对父母的压力，希望尽快拿到；
◇不清楚认证流程以及材料该如何准备；
◇回国时间很长，忘记办理；
◇回国马上就要找工作，办给用人单位看；
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3:国家专业人才认证中心颁发入库证书
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5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
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办理(uoft毕业证书)加拿大多伦多大学毕业证【微信：741003700 】外观非常简单，由纸质材料制成，上面印有校徽、校名、毕业生姓名、专业等信息。
办理(uoft毕业证书)加拿大多伦多大学毕业证【微信：741003700 】格式相对统一，各专业都有相应的模板。通常包括以下部分：
校徽：象征着学校的荣誉和传承。
校名:学校英文全称
授予学位：本部分将注明获得的具体学位名称。
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颁发日期：这是毕业正式生效的时间，也代表着毕业生学业的结束。
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办理(uoft毕业证书)加拿大多伦多大学毕业证【微信：741003700 】价值很高，需要妥善保管。一般来说，应放置在安全、干燥、防潮的地方，避免长时间暴露在阳光下。如需使用，最好使用复印件而不是原件，以免丢失。
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【业务选择办理准则】
一、工作未确定，回国需先给父母、亲戚朋友看下文凭的情况，办理一份就读学校的毕业证【微信：95270640】文凭即可
二、回国进私企、外企、自己做生意的情况，这些单位是不查询毕业证真伪的，而且国内没有渠道去查询国外文凭的真假，也不需要提供真实教育部认证。鉴于此，办理一份毕业证【微信：95270640】即可
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留信网认证的作用:
1:该专业认证可证明留学生真实身份【微信：95270640】
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
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授予学位：本部分将注明获得的具体学位名称。
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原版一模一样【微信：741003700 】【(osu毕业证书)美国俄勒冈州立大学毕业证成绩单】【微信：741003700 】学位证，留信认证（真实可查，永久存档）原件一模一样纸张工艺/offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
本公司拥有海外各大学样板无数，能完美还原。
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【主营项目】
一.毕业证【q微741003700】成绩单、使馆认证、教育部认证、雅思托福成绩单、学生卡等！
二.真实使馆公证(即留学回国人员证明,不成功不收费)
三.真实教育部学历学位认证（教育部存档！教育部留服网站永久可查）
四.办理各国各大学文凭(一对一专业服务,可全程监控跟踪进度)
如果您处于以下几种情况：
◇在校期间，因各种原因未能顺利毕业……拿不到官方毕业证【q/微741003700】
◇面对父母的压力，希望尽快拿到；
◇不清楚认证流程以及材料该如何准备；
◇回国时间很长，忘记办理；
◇回国马上就要找工作，办给用人单位看；
◇企事业单位必须要求办理的
◇需要报考公务员、购买免税车、落转户口
◇申请留学生创业基金
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
办理(osu毕业证书)美国俄勒冈州立大学毕业证【微信：741003700 】外观非常简单，由纸质材料制成，上面印有校徽、校名、毕业生姓名、专业等信息。
办理(osu毕业证书)美国俄勒冈州立大学毕业证【微信：741003700 】格式相对统一，各专业都有相应的模板。通常包括以下部分：
校徽：象征着学校的荣誉和传承。
校名:学校英文全称
授予学位：本部分将注明获得的具体学位名称。
毕业生姓名：这是最重要的信息之一，标志着该证书是由特定人员获得的。
颁发日期：这是毕业正式生效的时间，也代表着毕业生学业的结束。
其他信息：根据不同的专业和学位，可能会有一些特定的信息或章节。
办理(osu毕业证书)美国俄勒冈州立大学毕业证【微信：741003700 】价值很高，需要妥善保管。一般来说，应放置在安全、干燥、防潮的地方，避免长时间暴露在阳光下。如需使用，最好使用复印件而不是原件，以免丢失。
综上所述，办理(osu毕业证书)美国俄勒冈州立大学毕业证【微信：741003700 】是证明身份和学历的高价值文件。外观简单庄重，格式统一，包括重要的个人信息和发布日期。对持有人来说，妥善保管是非常重要的。
Properties of Fluids, Fluid Statics, Pressure Measurement
Properties of Fluids: Density, viscosity, surface tension, compressibility, and specific gravity define fluid behavior.
Fluid Statics: Studies pressure, hydrostatic pressure, buoyancy, and fluid forces on surfaces.
Pressure at a Point: In a static fluid, the pressure at any point is the same in all directions. This is known as Pascal's principle. The pressure increases with depth due to the weight of the fluid above.
Hydrostatic Pressure: The pressure exerted by a fluid at rest due to the force of gravity. It can be calculated using the formula P=ρghP=ρgh, where PP is the pressure, ρρ is the fluid density, gg is the acceleration due to gravity, and hh is the height of the fluid column above the point in question.
Buoyancy: The upward force exerted by a fluid on a submerged or partially submerged object. This force is equal to the weight of the fluid displaced by the object, as described by Archimedes' principle. Buoyancy explains why objects float or sink in fluids.
Fluid Pressure on Surfaces: The analysis of pressure forces on surfaces submerged in fluids. This includes calculating the total force and the center of pressure, which is the point where the resultant pressure force acts.
Pressure Measurement: Manometers, barometers, pressure gauges, and differential pressure transducers measure fluid pressure.
Supermarket Management System Project Report.pdf
Supermarket management is a stand-alone J2EE using Eclipse Juno program.
This project contains all the necessary required information about maintaining
the supermarket billing system.
The core idea of this project to minimize the paper work and centralize the
data. Here all the communication is taken in secure manner. That is, in this
application the information will be stored in client itself. For further security the
data base is stored in the back-end oracle and so no intruders can access it.
Open Channel Flow: fluid flow with a free surface
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DRI PLANT.pptx
- 1. Presentation on DRI Plant • Shashank Gautam • Rahul Mandal • Himanshu Ranjan • Konkala Navyasri Reddy • Arpon Samui • Harsh Chauhan • Anoop Tiwari • Gaurav Jain • Ruchi Kushwaha • Sevi Dewarwar • Aakanksha GROUP MEMBERS
- 2. CONTENT • Overview • Purpose of Sponge Iron • Raw material • Flow Chart • Process • Rotary Kiln • Ellingham Diagram and Chemical Reactions • Rotary Cooler • PSB • ESP • Problem Statement
- 3. Direct reduced iron (DRI) also known as Sponge Iron. It is the product which is produced by the direct reduction of iron ore or other iron bearing materials in the solid state by using non-coking coal. Overview of DRI(Direct reduced Iron)
- 4. • It is a superior substitute of steel scrap for EAF(electric arc furnace) and Induced furnace. • Sponge iron has low Sulphur content. • Sponge iron is a pivotal material used for the production of various steel items like best quality TMT bars, Ductile Iron (DI) pipes. Purpose of Sponge iron
- 5. • Coal Fines(0-5mm in size) – Injection coal from kiln outlet • Iron ore(5 -25mm in size)- Raw material (pellet) which is feed from inlet • Dolomite(1- 6 mm in size)- for removing coal Sulphur • Coal(3-20mm in size) – Feed from inlet • Coal Lumps(5-25mm in size)- feed from inlet Raw materials used in DRI
- 6. Pellet Coal dolomite Rotary Kiln Coal Coarse Coal Rotary Cooler fuel Air WHRB ESP A B C Turbine Flowchart Fine coal PSB DRI Lumps + Fines Dolochar Transfer Chute
- 7. PROCESS Raw material(Coal, Pellets, Dolomite) is taken from the RMHS and stored in Bunkers. 4 bins : 2 for feed Coal , 1 for pellets , 1 for Dolomite. Mixture of these 3 goes to Kiln by using Conveyor. In the Kiln we use injector for injecting fine and coarse coal. Then heated Sponge iron goes to cooler and gets cooled up to 100C. Cooled Material goes to PSB building for Screening and Separation of material . PROCESS
- 8. • Kiln is the major equipment in DRI Plant, which is also known as Rotary Furnace. • The transport rate of materials through the kiln can be controlled by varying its slope and speed of rotation(0.3 RPM) • Length of Kiln=76m • Diameter of Kiln=4.3m ROTARY KILN
- 9. Ellingham Diagram T=710⁰ 𝟑𝑭𝒆𝟐𝑶𝟑 + 𝑪𝒐 →2𝑭𝒆𝟑𝑶𝟒 + C𝑶𝟐 𝑭𝒆𝟑𝑶𝟒 + Co → 3 𝑭𝒆o + C𝑶𝟐 𝑭𝒆o + Co → 𝑭𝒆 + C𝑶𝟐 C + 𝑶𝟐 → 𝑪𝑶𝟐 𝑪𝑶𝟐 + C → 2CO Chemical Reactions :
- 10. Used for decreasing the temperature of the Sponge Iron upto 100C . Ac motor & motor drive used. RTD used for Temperature measurement. Dimensions : Diameter = 3m , L = 30m. Water tray is used for cooling. ROTARY COOLER
- 11. Product Separation Building(PSB) • Sponge iron(Magnetic) and char(Non-Magnetic) are separated with the help of Magnetic Separator. • Magnetic material further screened by vibrating screen and separated into lumps and fines. Magnetic Separator
- 12. Sponge Iron + Dolochar Vibrating Screen Fines Lumps Magnetic Separator Magnetic Separator DRI Fines DRI Lumps Char Product Separation Building
- 13. ESP Used for remove ash , dust and smoke from flue gas. Principle based on Corona effect. Efficiency = 99%. High Voltage is required. Components : Smoke stack , electrodes , collecting plates , hopper , rapper etc
- 14. PROBLEM STATEMENT • Backlash error in Girth Gear.
- 15. . • Grinding should be done on the gear teeths. • Oiling should be done. Solution
- 16. . • Leakages from rotary cooler cause corrosion. Harmful effect of corrosion:- • It cause crack on the surface of metal • it reduce the quality and strength of metal surface. PROBLEM STATEMENT
- 17. SOLUTION • GALVANISING-: Apply protective layer of zinc on surface of metal. • Oiling or Greasing • BLUEING-: This process creates a layer of magnetite over the metal to prevent the rust.
- 18. PROBLEM STATEMENT Problem: Accretion formation
- 19. Solution 1. Using good quality of raw materials: A. Iron ore: • Low gangue content • High tumbler index • Low abrasion index 2. By increasing the fusion temperature of the complex compound which sticks to refractory wall By using Dolomite the fusion temperature can be increased. 3. By performing the procedure and maintaining the temperatures inside the Kiln. . B. Non-coking coal: • Low ash content • High reactivity • High ash fusion temperature • Low swelling and caking index
Editor's Notes
- WHRB- Waste Heat Recovery Boiler ABC – After Burning Chamber PSB- product Separation building