TRAINING REPORT ON SRF LIMITED By Krishan Pal

TRAINING REPORT ON SRF LIMITED By Krishan Pal 08 ME 336

ABOUT THE COMPANY Company the ‘SRF’ was established in the 1979 by the Sh. Bharat ram , chairman & founder of this company. And now a days Mr. arun bharat ram is the chairman of this SRF group. Main business of the company is the refrigent gases. Address: Bhiwadi, Rajasthan 75 Kms from New Delhi

MANUFACTURING FACILITIES: Plant Area : 70 Acres/300, 000 sq. meters. Plant Capacities : Refrigerant 12, 500 TPA (Allied Signal) Chloromethanes 35, 000 TPA (Elf Atochem) Hydrofluoric acid: 8, 500 TPA No of Employees Power Generation : ~ 400. : 7. 5 MW Captive cogeneration coal captive power 5 MW Diesel Generating sets. plant.

RAW MATERIAL Spar Consist of Ca. F 2 : 97. 5% Si. O 2 : 1. 0% P 2 O 5 : 1. 0% Sulphur : . 03% Moisture: 0. 1% Sulphuric Acid Oleum

FLOW DIAGRAM

LIW (LOSS IN WEIGHT) LIW is a devices which feed the spar in controlled manner. Loss in weight ( LIW) system is a package of 3 load cell based weight bin and a variable speed screw conveyor (SC - 151 ) or gravimetric screw. Maximum limit of LIW = 203 kg Features: 1. Totally automatic 2. No hazard 3. Capacites controlled

SPAR DRYER Spar dryer is consist of two coaxial cylinder having Different radii & Lifter , Flattrs are use to crash and to increase the contactness Of moisture & heat.

Total no. of lifters = 48 Area of the one lifter = 130* 250* 75 mm Temp. given to dryer = 148 C Moisture content before dry the spar= 11 - 14% Moisture content afterdry the spar =. 05 – 1 %

ROTARY KILN Kiln is a rotary machine which is used to manufacture the HF. kiln is made up of carbon steel. Reation inside the kiln Ca. F 2 + H 2 SO 4 -- 2 HF + Ca. SO 4 (Zypsum) It is mounted on the four rollers. Time taken to get te product from rear end to front end is 2. 5 hr. Zypsum handling is done with the help of conveyers, gear box, silo, control valves.

INSULATION ON THE KILN Length wise kiln is distributed in four zone, on which a cover sheet is used. Material of the insulation is Glass wool(white). Thickness of the insulation on the kiln is upto 100 mm and it also depends on the material of the insulation. Nut and thin rods are welded on the kiln sheet to hold the insulation. This insulation prevent the 90 -95% of hot air heat.

Length : 22. 5 meter Internal dia : 2 meter Weight : 72 ton Thickness of the shell : 45 mm from along rear end upto 17. 5 meter & after that it Is 50 mm.

HAG stands for Hot air generation. It is a large vessel which generates hot air if temperature 650 degree celcius. the fuel used is LSHS(low sulphure high speed) and diesel. special bricks are used in the hag which can bear 1200 degree celius.

CENTRIFUGAL PUMPS A DEVICE WHICH CONVERTS ENERGY IN TO HEAD & FLOW. TYPES OF THE PUMP: 1. Centrifugal Pumps. 2. Positive Displacement Pumps. 3. Multi Impeller Pumps

PUMPS CONSIST OF VARIOUS PART: IMPELLER CASING LOCATING FLANGE BRACKET BACK PLATE BEARING HOUSING COUPLINNG OF MUFF TYPE CARTAGE OIL CUP

LUMP BRAKER Prevent the lump formation , scraps the material Facilate the flow of gypsum. Flights are used for braking of lump. Construction : 56 flights are welded on the shaft of dia 300 mm. Meterial of flight is Alloy -20 ( 45% fe , 24 % Ni , 20% Cr)

DISTILLATION COLUMN Distillation- A process in which a liquid or vapour mixture of two or more substances is separated into its component fractions of desired purity, by the application and removal of heat Types of Distillation : 1. Batch column 2. continuous column

Distillation column

CONTROL VALVE Control valves are the instrument used to feed the any substance or material as per requirement Types of control valves: 1. 2. 3. 4. 5. 6. Plug valves globe vakves Gate valves Diagphram valves butterfly valves solenoid valves

ALIGNMENT Any two split thing work together efficiently is the perfection of the alignment. Alignment of KILN

CAUSE OF MISALIGNMENT Operating temperature can affect alignment Machines aligned cold can go out when warm Bases or foundations can settle Grouting can shrink or deteriorate Forces transmitted to the machine by pipe or support structure. Soft foot. Poor workmanship. Increases energy demands

Thank You