Approval of the Supervising teacher
Approval of the Head of the department
1
Submitted by:
(i)
Md. Zahangir Alam ID: 071-23 352
(ii)
Abu Sayed Paholowan ID: 071-23-339
(iii)
Mohammad Asaduzzaman ID: 063-23-
2
Acknowledgements
First of all we want to pay gratitude to almighty Allah. The industrial training was conducted in Sim fabrics limited. We are highly thankful to the Sim fabrics authority for their whole hearted cooperation and cordial support in providing information and assisting in our training activities. Especially we would like to thank Mr. Mozzafar Hossain, Managing Director, Sim fabrics limited for giving us the opportunity to perform our training at his reputed industry. We are also grateful to Mr. Shohrab hossain, Production Manager, Sim fabrics Limited, for his valuable guidance and for giving us his precious time and valuable discussion during the training period. It has been a great opportunity to be a trainee under his supervision. Guidance form Professor Dr. Mahbubul Haque, Head, Department of Textile Engineering, Daffodil International University, have made our efforts for training & report writing successful. During the Two month long training period, a number of staffs of Sim fabrics helped us. Last but not the lest we are thank full to all other people whose name is not mentioned here but without their help & support this training could not come out with success.
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1.1 Introduction Industrial training is an integral part of the study for student of Textile Engineering. After the final exam of our entire four year study, we have taken this industrial training form Sim Fabrics Limited; a 100% export oriented Woven manufacturing industry in Bangladesh. Throughout this two months long training period we have tried to learn various technical things which are mentioned in this report. This training enabled us to bridge the gap between theoretical & practical knowledge. The incumbents were deputed to Sim Fabrics Limited for practical industrial training programme arranged by our university.
1.2 Objective: The main object of our entire training period is to gather as much as practical knowledge on various textile processes related with the industry. During the training period we have tried to meet the gap between theoretical and practical knowledge. As we are the students of Fabric Manufacturing technology so our main concern was about Weaving. We have also tried to gather knowledge about machine maintenance and various utility services.
1.3 Place of Study: We have performed our industrial training from SIM Fabrics Limited which is located at Thakurbari Tech., Bhulta, Rupgonge, Narayangonge. This is a 100% export oriented woven factory. It consists of Warping, Sizing & Weaving Unit. They do maintain their quality level up to the mark so this industry was an ideal place for our study.
1.4 Duration of Study: The total duration of training period was two months.
1.5 Method of Study: We attached here as trainee and our study method was Auto instruction.
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2.1 GENERAL INFORMATION ABOUT SIM FABRICS LTD
Name of the Company Status
: SIM FABRICS LIMITED : Private Ltd. Company
Business Type
: 100% Export oriented Factory
Address •
Head office
: Road no#11, House no # 02 Block # K, Baridhara, DHAKA - 1212.
•
Factory
: Thakurbari Tech., Masumabad, Bhulta, Rupgonge, Narayangonge, Bangladesh.
2.1.1
Production Capacity •
2.1.2
Weaving section
Product Mix
: 776000 yds per month
: 3/1 Twill(With & Without Lycra) : 2/1 Twill (With & Without Lycra) : 1/1 Poplin : 1/1 Canvas (With & Without Lycra)
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2.1.3 Different Departments •
R&D Section
•
Weaving Section
: Weaving : Inspection
•
Inspection section
: Inspection : Cutting
•
Store Section
•
Marketing Section
•
Production Planning & Control
•
Administration Section
•
Security Section
•
Technical Service Department : Electrical : Mechanical
2.1.4 Total Manpower of Different Section •
Weaving section
: 130
•
Inspection section
: 140
•
Cleaning section
: 10
•
Cloth carry section
:12 9
•
Security section
: 15
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3.0 Sizing 3.1 Ingredients used in the size cooking tank: Starch Size CA CMS -60 (Above 90% solidity) [Highly modified starch] Wax Fat Softener Capacity of cooking tank- 750 Ltr Size paste waste- 105 Ltr (m/c-1) [After set complete] Cooking Temperature- 90-96°c Cooking time- 25-60 min Pick-up- 6-12% (Higher pickup% for finer count so that lower squeezing pressure) Cylinder temperature- 100-120°c Squeezing pressure- (by top roller) Delivery squeeze pressure- 15-25 KN Lowest – 12-17 KN Highest- 15-20 KN At 20 m/min speed squeezing pressure- 18 KN Stretch- 1.1 – 1.5 %
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Sizing Temperature- 85-94°c 18- 20 % moisture in the yarn is required after sizing
3.2 Sizing machine specification: Brand : Bennenzer ( Zell Procomate) Creel capacity—2 Beam stand – 12 (double) Sow box – 01 Squeezing roller – 02 Immersion roller –02 Cylinder –14 Wax box – 01 Head stroke – fixed roller 01 Tension roller 01 Blower – 02
3.3 Example of size chemicals consumption-
Warp count
Water liter
%
Modify starch Kg
%
Tapioca starch Kg
%
Size CA Kg
%
CMC Kg
%
Softener Kg
%
Fat Kg
Wax %
Kg
12
%
40
600
81.8 4
30
5
60
10
6
1
30
600
88.5
15
2.5
50
8.3 3
2
20
600
87.4 3
10
1.6 7
60
10
16
600
87.4 3
10
1.6 7
60
600
88.4 4
15
2.5
50
10
5
0.8 3
2
0.3 3
0.3 3
1
4
0.6 7
10
4
8.3 3
3
3
0. 5
3
0.5
0.1 7
1
0.17
0. 5
0.0 8
1
0.15
0.6 7
0. 5
0.0 8
1
0.15
0.5
0. 5
0.0 8
1
0.15
Sample data
Total feed= 10469 m
Total delivered= 10600 m
Actual stretch = 1.25 %
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Fig: Detail Plan of a Weaving Section.
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4.1 Process Flow Chart of Weaving Warp Wise Yarn Path: Weavers beam ↓ Back rest roller ↓ Feeler roller
↓ Warp stop motion or drop wire ↓ Heald Eye ↓ Reed ↓ Take Up Roller ↓ Batcher
Weft Wise Yarn Path: Bobbin Creel ↓ Pre Winder ↓ Programmable Filling Tensioner (P F T) ↓ Fixed Nozzle ↓ Movable Nozzle
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↓ Filling Cutter ↓ Relay Nozzle ↓ Filling Detector ↓ Stress Nozzle ↓ Waste Cutter
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4.2 Important Parameter and their effect in fabric production
a. GSM •
Gray GSM should be less than finish GSM
•
If shrinkage increase then GSM increase
b. Count •
If count increase then fabric width increase
•
GSM depends on yarn count
c. Design •
Cam setting
•
Cover Factor
•
Contraction Factor
4.3 MACHINE SPECIFICATION:
4.3.1 Air Jet Loom Specification:
·► M/C NAME: TSUDAKOMA
·► MODEL NO: ZA205
·► POWER CONSUMPTION: 3.6 KW (at cool state) 18
2.6 KW (at warm state)
·► AIR CONSUMPTION: 65 m3 /hr
·► REED SPACE: 190cm
·► ORIGIN: GERMANY
4.3.2 Cam Box Specification:
·►COMPANY NAME: Staubli
·► M/C TYPE: 1661
·► ORIGIN: France
·► MANUFACTURING DATE: December, 2005
4.3.3 Pre winder Specification:
·► MODEL: Picanol 2231 CAN Plus -300V DC
4.3.4 Machine Indicator Light:
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·► Green Light
: Normal Stop
·►Yellow Light
: Weft Stop
·► Red Light
: Warp Stop
·► Red + Yellow Light
: Warp + Weft Stop
4.3.5 Machine Motor:
·►Main Motor / Sumo Motor / DC Motor
·►Let off Motor
·►Take Up Motor
·►Electric Rotary Leno Motor
·►Leveling Motor
·►Selvedge Motor
·►ALCA Motor
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4.3.6 Distance of relay nozzle: Number of nozzel 1st one to 2nd one 2nd to 3rd 3rd to 4th 4th to 5th 5th to 6th 6th to 7th 7th to 8th 8th to 9th 9th to 10th 10th to11th 11th to 12th 12th to 13th 13th to 14th 14th to 15th 15th to 16th 16th to17th 17th to18th 18th to19th 19th to 20th
Distance in mm 7.1 6.9 6.7 7 7.3 6.9 7 7 6.9 7.1 7 7 6.8 7.1 7 6.9 5.8 5.2 4.8
4.3.7 Air Pressure of main nozzle & relay nozzle: Serial No
Machine RPM
Yarn Count
01 02 03
450 450 450
10 16 20
Main Nozzle pressure( bar) 4 3.5 3
Relay nozzle pressure( bar) 4.5 4 3.5
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04 05
450 450
30 40
2.75 2.5
3 3
4.4 GSM Calculation
Yarn count =
Length (cm) X 0.0059 Wt(gm)
Yarn weight = Sample weight X 100X100 / Sample Length X SampleWidthX 33.9063 For example, Construction = 71 X 51 Total yam = 11 Length of fabric = 3.45cm Weight of fabric = .03 gm Count=11X3.45X0.0059 / 0.03 =7.46 Weight =
0.4 X i00 X 1OO 3.45X2.886X33,9063 =11.83 oz / yd2
Crimp % : Warp Length – Actual Warp Length Production / Warp Length * 100 Shrinkage % : Actual Production – Finishing Production / Actual Production * 100
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MAINTENANCE 5.0 Maintenance: Maintenance is a process by which equipment is looked after in such a way the equipment can give the best services of it. Machine, buildings and other facilities are subjected to deterioration due to their use and exposure to environmental condition. Process of deterioration, if unchecked, culminates in rendering these service facilities unserviceable and brings them to a standstill. In Industry, therefore has no choice but to attend them from time to time to repair and recondition them so as to elongate their life to the extent it is economically and physically possible to do so. Maintenance increases the life time of the machine. Now a days maintenance has become the essential for the modern time industrialization.
5.1 Objectives of maintenance: 1. To keep the factory plants, equipments, machine tools in an optimum working condition. 2. To ensure specified accuracy to product and time schedule of delivery to customer. 3. To keep the downtime of machines to the minimum thus to have control over the production program. 4. To keep the production cycle within the stipulated range. 5. To modify the machine tools to meet the need for production 5.2 Types of maintenance:
PERIODIC
MECHANICAL
MAINTAINANCE
PREVENTIVE
MECHANICAL
BREAKDOWN
MECHANICAL 24
ELECTRICAL
ELECTRICAL
ELECTRICAL
5.2.1 Periodic Maintenance: Maintenance of different machines is prepared by expert engineer of maintenance department for a period of time. Normally in case of dyeing machine maintenance after 30 days complete checking of different important parts are done.
5.2.2 Preventive Maintenance: Preventive maintenance is a predetermined routine actively to ensure on time inspection / checking of facilities to uncover conditions that may lead to production break downs or harmful description.
5.2.3 Break down maintenance: In this case, repairs are made after the equipment is out of order or broken and it can not perform its normal functions.
5.3 Flowchart of maintenance: Problem Inform to maintenance department Detect problem Problem can be repairing or replacing Repair can be solved immediately, replacing requires time (parts needed to buy & then solved the problem)
5.4 Maintenance procedure of Air jet machine: Maintenance Type: Maintenance :
Mechanical and Electrical Daily Checking
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Serial no 1. 2. 3. 4. 5. 6. Maintenance Type: Maintenance : Serial no 1. 2. 3. 4. 5. 6. 7. 8. Maintenance Type: Maintenance : Serial no 1. 2. 3. 4. 5. 6.
Items need to be checked & service. Grease the wince bearing. Type of Beam End of beam Quality of the fabric Oiling in the joining point of the m/c Complete cleaning of m/c Mechanical and Electrical Weakly Checking Items need to be checked & service. Machine Checking Spring Checking Bearing Checking Gear Checking Break Checking Motor Checking Reed Checking
Mechanical and Electrical Monthly Checking Items need to be checked & service. Gear Box Cam Box Motor Rubber Shoe Crank Shaft
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MAINTENANCE Production Manpower GM DGM PM APM Sr. PO PO APO Supervisor Line Man Beam Feeter Operator 27
Loom Helper
5.5 Duties & Responsibilities of Production Officer: 1. To collect the necessary information and instruction from the previous shift for the smooth running of the section. 2. To make the junior officer understand how to operate the whole production process. 3. To match production sample with target Fabric. 4. To observe Producing fabric during running condition of the m/c. 5. To identify any fault in the fabric and report to PM/GM necessary action. 6. To discuss with PM about overall production if necessary. 7. To execute the overall floor work. 8. Any other assignment given by the authority.
Duties & Responsibilities of DGM (Production): 1. Overall supervision of weaving, Sizing and quality section. 2. Check the sensitive parameters of different machines for smooth Production. 3. Check the different log books in different areas and report to management. 4. Check the plan to control the best output. 5. To trained and motive the subordinates how to improve the quality production. 6. Control the supervisor, operator, asst. operator and helper of weaving machine. 7. Maintenance the machinery and equipments. 8. Any other work as and when required.
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Mechanical Manpower Mechanical Incharge
Floor Man
Head Feeter
Sr. Feeter
Feeter
Sr. Assist. Feeter
Assist. Feeter
Sr. Helper
Helper
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Fig: Detail Plan of Fabric Inspection & Folding Unit.
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6.1 Objects of Quality Control: 1) Specification test 2) Raw material control 3) Process control 4) Process development 5) Product testing 6) Research
6.2 Quality Control of Weaving Section To produce high quality fabric it is necessary to inspect the fabric roll after receiving from different machine. This is done to assure the quality of the fabric before dyeing. List of equipments used in inspection a. Inspection m/c b. Electronic balance c. GSM cutter
6.3 Inspection Procedure As the fabric is produced by the Air jet loom it is then collected by the quality inspector and the fabric is thoroughly inspected in front of a white light board. During this inspection the holes, oil marks, reed marks, loom bar, temple mark, double end, double pick, tight warp, loose warp, faulty denting, faulty drawing are checked. If the fabric is within the acceptance level (by the four point system) then it is sent to the garments section for further treatment.
6.4 Quality Standard Sim Fabrics Ltd. Follows the four point grading system to inspect the body of the fabric. In the four point system the faults are found by inspection and are given points against the fault. Then the total no. is calculated. The following table shows the four point system. Size of defects 3 inches or less Over 3 inch but not over 6 inch
Four Point Grading System Penalty Points 1 2 32
Over 6 inch but not over 9 inch Over 9 inch
3 4
6.4.1 Calculations of points is done by= Actual Point Grade If point grade is 40 or below then the fabric is ok. If the result is more than 40 points, then inform it to GM or respective merchandiser The fabric is also checked for shading defect in side by side and length. Any nonconformities/ shading will be notified to asst. manager using inspected reports. Roll wise color uniformly card is maintained for identification of shade variations. During the fabric inspection if the yardage of any roll is reported more or less by the fabric inspection machine then the one specified in the roll, the roll will be measured manually using measuring tapes. Only calibrated measuring tape should be used. The result of fabric inspection shall be recorded in fabric inspection report.
6.5 Following Table shows common faults and response by inspection section at Sim fabrics ltd. No. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12.
Faults Reed Mark Mis pick Snarl Hole Slubs Thick thin place Weft contamination Double end Wrong denting Double pick Wrong drawing Loose warp
Response Uneven warp & weft tension Uneven weft yarn tension Uneven air pressure Uneven knotting Yarn fault Uneven tension Wrong weft yarn supply Wrong denting Double end Wrong air tension Operator fault Wrong beam winding 33
13. 14. 15. 16. 17. 18.
Tight warp Oil line/ stain Chemical Dirt stain Crease mark Uneven tension
Do Carelessness Do Do Do Wrong operational set up
6.6 MACHINE SPECIFICATION: ► Machine Name : Modular Design Inspection Winding M/C ►Company Name : S T T Machinery Co Ltd (S T T = Shiaw Tai Tong ) ►Model : S T T - I E W 10272 ►Patent No : 187203 ►Serial No : 2987-2 ►Manufacturing Date : 2006 ►Origin : Taiwan
6.7 Quality Assurance System: Quality assurance procedure may be divided into two major parts a) Online quality control b) Offline quality control
6.7.1 Online Quality Control: Online quality control comprises with the raw material control, process control & finish fabric inspection. 6.7.1.1 Raw material control: As the quality product depends upon the raw material quality, quality assurance department must ensure the best qualities of raw material are used in production.
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The yarn should be with a known concentration and high degree of purity The fabric must be without faults, with proper absorbency, whiteness as per requirement of the subsequent process. 6.7.1.2 Process Control: The method chosen for process must be provided with necessary parameters. During weaving samples should be checked at each stage of process. GSM, width, shrinkage (both length & width) should be maintaining as per buyer requirement.
6.7.2 Offline quality control: Offline quality control generally comprises different tests of final product so that it is possible to identify whether it pass against the norms given by buyer, the following test are generally done•
GSM test
•
Shrinkage test
•
Shade Check
•
Wash fastness test
•
Fastness to water
•
Rubbing fastness test
•
Perspiration test
•
Durability test
•
Dimensional stability
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7.1 Basic Procedure of Production Planning & Control A planned work brings success. Without planning nothing is complete within the required time. So planning has its own importance which is intolerable. Planning gives a schedule task and controls it success. But production planning and control is not an easy task. Its basic working procedure is as follows•
Taking order form marketing division
•
Analyzing the orders 37
•
Planning for dyeing the yarn
•
Planning for weaving the fabric
•
Planning for finishing the fabric
It is only a basic procedure. It may change according to the type of order. Sometimes the order is planned only for finishing the materials or only for weaving the goods. Then some steps are minimizing for planning. a) Taking order from the marketing division: Sinha Denims Ltd. Marketing division supplied fabric orders to the planning and control division by a specific format.
b) Analyzing the orders: After getting the fabric order, this section analyzes the orders according to buyers order quantity, type of orders (i.e. type of fabric) delivery date etc. This section plans for required quantity of fabric to be weaved, delivery fabric.
c) Planning for weaving of the fabric: Production planning for weaving is called ‘” Beam Plan”. Weavers beam is prepared according to m/c capacity, reed count, fabric construction, width, GSM and priority of delivery etc and written in a pattern card.
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8.0 Marketing Information:
39
Sim fabrics Ltd. Is a 100% export oriented woven fabric manufacturer. So they sell their Product to export market. They also take some initiative for market development through communicating with new buyer and taking part in different international garments fair.
Product & Customer: As it is a woven industry, its main products are 3/1, 2/1, 2/2, 1/1 L.H.T & R.H.T and 3/1 broken twill. The factory ensures faults free fabrics as per customer requirements, through practice of faults free control procedures 8.1 Country of Export: •
England
•
USA
•
Germany
•
Sweden
•
Spain
•
Italy
•
France
•
Denmark
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9.1 Costing: Costing is a very complex procedure, with set patterns and guidelines followed by the industry, and it is difficult to find out costs for every process as there are some inbuilt costs while costing.
9.1.1 Amount of raw material or GSM of the fabric: Amount of raw material is reflected by the weight or GSM (grams/sq m) of the fabric. GSM is directly dependent on the EPI and PPI or construction of the fabric and is inversely proportional to the count of the yarn. Relation between GSM and cost is a little complex. For the same variety of the fabric, as the GSM increases the cost increases. But when the yarn becomes very fine and there is a variation in picks per inch in the fabric, then the cost of spinning and weaving plays a more important role than the GSM and even when the GSM is similar, the cost of voile fabric with finer yarns and more picks per inch is more. Weight of the fabric is the weight of warp and weft which can be calculated by the formula below: Weight of warp in grams/sq m of fabric = (EPI x 0.6) / Count of Warp = A Weight of weft in grams/sq m of fabric = (PPI x 0.6) / Count of Weft = B GSM = A+B
9.1.2 Sizing and Chemicals Cost: The sizing cost depends upon the count of the yarns. The count becomes finer the size and chemical cost increases as a rich solution, better quality of size and chemicals is required for better strength. One needs to add Rs 35/kg as additional cost which includes steam, power or wages. For two plied yarn no sizing is required.
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9.1.3 Production cost or cost of weaving process: It includes machine running cost, maintenance, labour cost, power & fuel, etc. The weaving cost is affected by the beam size -- if the beam is small in length, the cost will be more as beam gaiting and knotting will add to the cost.
Mill-made or power-loom made: The quality of mill-made fabrics is better than power loom made fabrics in terms of yarn quality; therefore the cost of fabric is higher. At times it can be as high as 25%. eg, the cost of 40s Poplin 92 x 88 can vary between Rs 22/m and Rs 34/m. It depends on the type of loom whether powerloom, rapier, air-jet, dobby or jacquard and the weave and construction. The weaving cost is expressed as paisa /pick/inch/sq m. The cost of weaving is different for different weaves. The cost of weaving for rapier loom for plain weave 40" width fabrics = 8 paisa/pick/inch/sq nm which means that for a 120 inch width fabric the cost will be 24 paisa/pick/m. For twill weave, the cost = 12 paisa/pick/inch/sq m. For satin weave, the cost = 12 paisa/pick/inch/sq m. In case of P/V suiting, the cost ranges from 14 paisa/pick to 20 paisa/pick. For 1,000 m beam with dobby, the weaving cost is 17 paisa/pick and for 1,000 m beam with jacquard is 20 paisa/pick. For dobby, the cost = 12 paisa/pick/inch/sq m. For 2400 hook jacquard the cost = 40 paisa/pick/inch/sq m. For double beam fabrics like seer sucker, the cost is = 20 paisa/pick/inch/sq m.
Costing of the product: Costing system mainly describe how the cost of the final product is fixed by the company / top managements. As it is a garments manufacturing factory, so according to the buyer / customer requirements of final garments, merchandiser give the consumption of fabric with specifications. Then it is calculated how much dyestuffs & chemicals are required for processing. After that, the final cost is fixed including some profit. Then the unit price is offered to the buyer for their approval.
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9.2 Costing of a product includes: -
Yarn cost Warping cost chemicals cost Sizing cost Cost of Weaving Cost equipments & accessories etc Transportation cost Labor cost (direct & indirect) Factory cost Office & administrative cost Sales and caring cost Others cost Profit, etc.
Remarks: The costing of the product is most secret matter of the Industry. They are not interested to flash the cost related data. So we could not collect the Costing process of the products
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10.1 Specification of Generator 45
M/c no.:01 Model
: MTG 846
AMPS
: 1304
Serial No
: BZ4L 4855
over speed
: 125
Manu
: Date: 2004
Rotation
: CCW
Name
: Waukesha
Harz
: 50
Origin
: USA
RPM
: 1000
Type
: Gas generator
EMI
: 60087910
AMB
: 40
KVA
: 938
ALT
: 1000M
KW
: 750 EXC
Volts
: 30
Power Factor
: 0.8
Temp Rises
: 105oc
Volts
: 415
Max Ambient Temp : 38oc
Model
: VHP5904GSID
AMPS
: 1565
Serial No
: C-34908-90113
Over speed
: 125
Manu. Date
: Sept, 2006
Rotation
: CCW
Name
: Waukesha
Harz
: 50
Origin
: USA
RPM
: 1000
Type
: Gas generator
Weight
: 17650 kg
AMB
: 40oc
EMI
: 68604200
ALT
: 1000M
KVA
: 1125
EXC Volts
: 30
KW
: 900
Temp Rises
: 105oc
Power Factor
: 0.8
Maximum Ambient Temps: 38oc
Volts
: 415
Arrangements
Phase
:3
M/c no.:02
Phase
:3
: P316099A
M/c no.:03
46
Model
: HCI 434F
Phase
:3
Serial No
: S087629-1
AMB
: 40oc
Type
: Diesel generator
Rating
: Prime
KVA prime UL 1446
: 400
Insulation Class
KWA Prime
: 320
Enclosure
:-IP 23
Power Factor
: 0.8
AVR
: MX 341
Volts
: 415
Temp Rises
: 105oc
Harz
: 50
Arrangements
: P316099A
: H:
RPM: 1500
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11.1 Effluent Treatment Plant Description of the ETP Process: 1. Equalization tank consist raw effluent. At the beginning raw effluent is led to the mixing tank/ reaction tank by pumping. 2. In Reaction tank Lime & Ferous Sulphate are added with effluent. Here blower is used to mix them properly 3. At the end of reaction tank the solution is led to the flocculation tank where polyelectrolyte is added for further reaction. 4. From the flocculation tank solution is drained to Tube settler-1. Here sludge is divided and placed in the sludge sump. 5. After the operation of tube settler-1 the solution is brought to pH control chamber where HCl is mixed to control the required pH. 6. After the completion of pH control the solution is led to the biological reaction tank 1 & 2. In this tank Bacteria Media is used to absorb the harmful insects that exist in effluent. An amount of Di-ammonium phosphate and Urea is used as food of Bacteria. 7. From the Biological Reaction tank water is again drained to Tube Setler-2. Like Tube Setler-1 sludge is divided here and placed in the sludge sump. 8. The cleaner effluent is passed through the filter feed tank to the sand filter and activated carbon filter for final filtration. After the final filtration the treated water is drained out in the air. Before draining out the Biological Oxygen Demand and Chemical Oxygen Demand are to check and keep it in required range. 9. The less contaminated liquid that is obtained from different operations except dyeing is stored min the less contaminated reservoir. It needs to be filtrated too before drain out. 10. In another operation, liquid sludge is collected from sludge sump and makes it inject into Sludge thickening tank. 11. In sludge thickening tank divination of raw sludge is occurred by centrifuge hydro extractor and the filtrated liquid is led to the equalization tank for further processing. 12. The Centrifuge hydro extractor is used to convert the sludge into cake which later brought to the air by the help of hand drum. After hydro extracting the rest substance is drained to the equalization tank for further processing. 13. The tested temperature of the equalization tank is approx 420c. Here blowers are used to maintain the proper circulation of the effluent. 49
50
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12.1 Conclusion Findings: Industrial training is an essential part for textile education because it minimizes the gap between theoretical and practical knowledge. Undoubtedly, this industrial training taught us lot about textile technology, production processes, textile machineries, industrial management, and made us comfortable to industrial life. Besides it gave us the first opportunity to work in industry. Limitations: •
We had a very limited time. In spite of willingness to study in more details it was not possible to do so.
•
Some of the points in different chapters are not include as these were not available.
•
It is not possible to compose the whole process in such a small frame as this report.
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