about related utility,textile mills, According to working, Reciprocation compressors, Rotary compressors, According to action, According to number stages, Double acting compressors, According to number of stages, Single stage compressor, Multi stage compressor

ABOUT RELATED UTILITY

INCEPTION:
Production & profit are closely related. In order to get a quality final product it needed fresh raw materials as well as effective manpower & m/c in good working condition. Utility in conjunction with the three M’s pays a vital role to maximize the production as well as profit.

UTILITY ENSURE:

? Power supply (By generator).
? Water supply (By BEPZA).
? Steam supply (By boiler).
? Compressed air supply (By air compressor).
? Exhaust air handing (By vacuum planning system).
? Gas supply (By BEPZA).
? Work shop facility.
? Civil work.
? Waste water treatment (By effluent project).

WATER
Source : BEPZA
Amount required :
For dyeing : 600 cft/day
: 25 m3 / min

Total water consumption / day : 1500 cft / day.
Cost : 1-1.5 tk /cft

ELECTRICITY:

Total electricity consumption : 2000 KW (2 MW).
Electricity consumption according to division wise:
For dyeing unit : 190 KW
For weaving unit : 380 KW.
For finishing unit : 100 KW.

GENERATOR:

An electrical Generator is a m/c, which convert mechanical energy (or power) into electrical energy (or power).

Principle:
The energy conversion is based on the principle of the production of dynamically (or motional) induced e.m.f. is produced it according to flow if the conductor circuit is closed.

Hence two essential parts of an electrical generator are –
1. A magnetic
2. A conductor or conductors, which can so, move as cut the flux.

Types of Generator:
Generators are usually classified according to the way in which their fields are excited. Generator may be divided in to –
1. Separator excited Generators:
Separator excited Generators are those whose field magnets are energized from an independent external source of D.C Current.
2. Self excited Generators.:
Self excited generators are those whose field magnet are energized by current produced by the Generators them selves.

There are three types of self-excited Generators named according to the manner in which their field coils are connected to the armature.
? Shunt wound
? Series wound
? Compound wound.

SPECIFICATION:
Brand : GUASKOR
Origin : SPAIN
Capacity : 500K.W / engine
No. of cylinder : 4 stroke
Fuel used : Natural gas
Volt : 50 H.Z & 390-395 Volts
Total number : 04

BOILER:

A steam generator or boiler is usually, a closed vessel made of steel for supplying steam.

Function:
Boiler’s function is to transfer the heat produced by the combustion of fuel (gas) to water, & ultimately to generate steam. The steam produced may be supplied:

? At low pressing for industrial process work in cotton mills.
? To wet processing department for
? Heating cylinder dryer
? Steaming during drying & printing.

Specification:

Manufacturers : BABCOCK
Country : GERMANY
Model : TD-100 / 10-54 / GAS /E
Type of boiler : Horizontal twin drum 3-pass fire tubes boiler.
Steam pressure:2.5 Kg / cm2
Capacity :10 tones / hour
Fuel used : Natural gas
Fuel cost : TK. 3.65 / unit
Gads cost / month: TK. 2.1 million (for boiler only)
Water flow : 5 Kg / hr.
Steam flow : 5 Kg / hr.
Steam temperature: 1390c

Boiler mountings:
Through there are many types of boiler mountings or fittings, yet the following are important from the subject point of view.

? Water level indicate
? Pressure gauge
? Safety valve
? Stop valve
? Blow off cock
? Feed check valve
? Fusible plug

Proper maintenance of these above fittings makes boiler safes functioning & improvement of economy.

An economize which is used to heat water by utilizing the heat in the exhaust flue gases before leveling through the chimney improves the economy of the steam boiler.

Advantages of using an economizer:

1. There is about 15% to 20% fuel saving.
2. It shortens the time required, to convert water into steam.
3. It prevents formation of scale in boiler water tubes.
4. Since the feed water entering the boulders is hot, the strains due to unequal expansion are minimized.

Precaution:
? Industrial water i.e. boiler feed water must be free from heavy metals such as Ca, Fe & salts Sulfate & Chloride. Water must be cleaned & be free from dissolved & Cos. Because dissolved Og Ion present of is a common cause of correction effect in the boiler.
? The temperature of feed should not be less than about 350c otherwise there is a danger of corrosion due to the moisture in the full gases being deposited cold tubes.

AIR COMPRESSOR :

An air compressor is a m/c to compress the air & to raise its pressure. The air compressor sucks air from the atmosphere, compresses it & then delivers the same under a high pressure to a storage vessel. From a storage vessel, the pipeline to a place where the supply, of compressed air is required.

Types:
According to working-
Reciprocation compressors
Rotary compressors

According to action –
According to number stages
Double acting compressors

According to number of stages-
Single stage compressor
Multi stage compressor

Function:
To provide compressed air to different section of the mill.

SPECIFICATON:

Brand name : KAESER
Origin : GERMANY
Production :23 m3 / hour
Powered required to run : 16 KW / hour
Pressure of the delivered air : 11 bar
Type : Screw type
Total number : 5

Delivery sequence:
Compressed air is delivered according to the below sequence:

Weaving
Dyeing Finishing
Inspection 10% water remains in the air.

HUMIDIFIER:

Object:
To maintain the proper humidity & temperature in the weaving floor.

Specification:
Brand : LUMA
Country : SWITZERLAND
Temperature supply : 180c water spray ( 29 0c to 30 0c in summer)
Relative humidity : 70%

CHILLER:

Specification:

Brand : THERMAX
Origin : INDIA
Total : 3
Capacity : 180 norm RT
Steam pressure : 9 kg /cm2
Chemical used : Lithium Bromide.

For Any machineries i.e warping, sizing, dyeing, weaving, finishing, boiler, Generator,

For clothes i.e T-shirt, polo shirt,jeans, sweater Email: info@minmaxbd.com [ China, Bangladesh]