What I learnt As An What I learnt As An Intern? Intern?

Ihsan Ali WassanDiscipline:Chemical EngineeringQUAID-E-AWAM UNIVERSITY OF ENGINEERING, SCIENCE & TECHNOLOGY NAWABSHAH, SINDH, PAKISTAN

1

PRESENTATION OUTLINES

Internship ? Why Internship is necessary? How do I get an Internship? What I learnt during Internship? Company/Industry is familiar with the name of QUEST or not?

2

Internship ?Internship ?

The period during which a person serves as an intern.

Generally internship consists of an exchange of services for experience between the student and organization.

3

Why Internship is necessary?Why Internship is necessary?

Essential part of finding a job when you graduate.

More and more businesses are looking for internship experience on the resume of their entry-level job candidates.

4

How do I find an Internship?How do I find an Internship?

Make a list of Industries Resume Cover letters Make contact Follow up Interview

5

PAKISTAN STEEL PAKISTAN STEEL

NO OF WEEKS: FOUR (04)DURATION: 06-06-2016 to 01-07-2016

6

PAKISTAN STEEL PAKISTAN STEEL

INTRODUCTION Pakistan Steel is located 40 km south east of Karachi in close vicinity to port

Muhammad Bin Qasim.

The foundation of Pakistan Steel dates back to 1970’s when Russia helped the government of Pakistan.

Zulfiqar Ali Bhutto (Shaheed) laid the foundation stone on 30th December, 1973

7

MAIN UNITSMAIN UNITS

Pakistan Steel includes the following main units in its plant, Coke Oven and By Product Plant (COBP) Oxygen Plant (OP) Cold Rolling Mill (CRM) Air, Steam & Gas Network (ASGN) Sintering Plant (SP) Iron Making Department (IMD) Steel Making Plant (SMP) Refractories Thermal Power Plant and Turbo Blower Station

8

PRODUCTSPRODUCTS

Pakistan Steel offers following main products,

Coke Pig Iron Billets Cold Rolled Sheets Hot Rolled Sheets Galvanized Sheets

The production capacity of 1.1 Million ton of steel expandable up to 3.0 Million ton per

annum.

9

COKE OVEN BY PRODUCT PLANT COKE OVEN BY PRODUCT PLANT (C.O.B.P)(C.O.B.P)

10

COKE OVEN BY PRODUCT PLANT COKE OVEN BY PRODUCT PLANT (C.O.B.P)(C.O.B.P)

In steel mills Coke oven & by product plant is specially designed for the production of coking coal.

The main by-product of this plant is coke oven gas.

The annual production complex may be summarized as follows:

1) Coke 970,000 m Tons2) Coke oven gas 499 m m3

3) Dehydrated Tar 45,500 m Tons4) Ammonium sulphate 17,200 m Tons

11

PRODUCTION UNITSPRODUCTION UNITS

Five main production units including:

Coal Handling & Processing Plant (CH&PP) Coke Oven Plant (COP) Coke Quenching Plant(CQP) By Products Plant (BPP) Bio Chemical Treatment Plant(BCTP)

12

COKE HANDLING & PROCESSING COKE HANDLING & PROCESSING PLANTPLANT

13

COKE HANDLING & PROCESSING COKE HANDLING & PROCESSING PLANTPLANT

The raw material coal is imported mainly from Canada & Australia containing less quantity of Ash and other impurities.

The varieties of coal are conveyed to coal handling department through the conveyor network from Port Qasim.

The length or the conveyor is about 3.2 Km.

Stored in stockyard in the form of huge piles.

14

COKE HANDLING & PROCESSING PLANT

Coal types and their composition.

15

SCHEMATIC FLOW DIAGRAM OF HANDLING & PROCESSING PLANT 16

COKE OVEN PLANTCOKE OVEN PLANT

17

COKE OVEN BATTERIES

The main task of coke oven plant is to produce coke. COKE? blackish grey in color 92% carbon high calorific value about 13,800 BTU/kg It is used in blast furnace for smelting of pig iron

18

COKE OVEN BATTERIES

Coke oven consist of two batteries each having 49 ovens (30 burners in each oven) having a capacity of each oven is about 22 tones.

Silica bricks are used in oven lining because it has high heat resistant capability.

There is a lining of 30 burners in between the ovens which heat the oven at a temperature of 1050 oC.

About 22.4 tons of coal blend is charge per oven 17 tons of product is obtained remaining used as a volatile compound.

Duration of coking periods depends upon temperature of 1050 oC coking period is about 22 hr

19

COKE OVEN BATTERIES

Some characteristic of coke oven batteries Effective volume of carbonization 3.0 cubic meterEffective length 14200 mmEffective height 5200 mmAverage width 410 mm Thickness of wall 105 mmThickness of oven flooring 1030 mmSingle charge one oven with 23.5 tonsCoking cycle of oven 15.3 hr

20

COKE QUENCHING COKE QUENCHING PLANTPLANT

21

COKE QUENCHING PLANTCOKE QUENCHING PLANT

There are two types of quenching normally used in steel making mills.

1. Coke Dry Quenching 2. Coke Wet Quenching

22

COKE DRY QUENCHINGCOKE DRY QUENCHING

Red hot coke is cooled by means of counter flow of nitrogen.

Nitrogen is a cooling media and as a result of this heated nitrogen produces which is used in boiler to produce steam as by products.

A boiler is also used to utilize waste heated nitrogen of this section.

23

COKE WET QUENCHINGCOKE WET QUENCHING

It is an easy way to cool down the hot coking coal with the help of sprinkling of water.

24

COKE SCREENING SYSTEMCOKE SCREENING SYSTEM

This network is used to separate the quenched coke of size +80 mm and -80 mm by using the network of screening then stored into a bunker.

25

SCHEMATIC FLOW DIAGRAM OF COKE SCHEMATIC FLOW DIAGRAM OF COKE OVEN PLANTOVEN PLANT 26

BY-PRODUCT BY-PRODUCT SECTIONSECTION

27

BY-PRODUCT SECTIONBY-PRODUCT SECTION

The by-product plant recovers following products:

Anhydrous Tar (46500 T/year)

Ammonium sulphate (17200 T/year)

Cooled and purified coke oven gas is used as a fuel in coke oven batteries and other plants of Pakistan steel mill

28

BY-PRODUCT SECTIONBY-PRODUCT SECTION

Coke oven gas is collected in the gas collector from coke oven batteries.

The gas goes to the primary gas cooler &

The condensate consisting of naphthalene, phenol, coal tar, liquor ammonia and sludge goes to decanter, in which components settle by density difference.

Coal tar maintained in the decanter then pumped to the final gas cooler.

29

BY-PRODUCT SECTIONBY-PRODUCT SECTION

The third component is condensate ammonia liquor which is overflowed to the storage tank from where it goes to battery where it is used to cool the coke oven gas in the gas collector.

The ammonium sulphate section serves for the recovery of ammonia from coke oven gas in the form of ammonium sulphate.

30

31

BIO CHEMICAL WATER TREATMENT BIO CHEMICAL WATER TREATMENT PLANTPLANT

32

BIO CHEMICAL WATER TREATMENT BIO CHEMICAL WATER TREATMENT PLANTPLANT

Bio-chemical treatment plant treats the cooling water used in By-product plant for removal of phenol and other toxic substances.

Bacteria (microbes), which decompose phenol, are added in these tanks.

Waste is broken down by bacteria, which is removed as sludge in settling tank.

33

Company/Industry is familiar with the name of QUEST or not?

What steps should be taken by Administration to provide Internship?

34

Directorate of Industrial Liaison Directorate of Industrial Liaison (DIL)(DIL) The prime objectives of DIL are to create and enhances the required University-Industry

linkages in the form of various activities.

DIL is then involved in arranging internship opportunities in summer and winter vacation for students in different organizations or industries.

DIL is engaged in collecting the topics of final year Engineering Projects and arranging technical/practical help from the industries related with the projects.

In addition, DIL arranges perpetual basis study visits for the students and faculty at various industries to get practical exposure of industry.

35

Thank you Thank you

36