COMPLETE PRODUCTION LINE FOR BLEACHED COTTON BLEACHING LINE

COMPLETE PRODUCTION LINE FOR BLEACHED COTTON BLEACHING LINE

1 X Complete production line for bleached cotton

Year    1986-2013

Electricity      380/3/50

Complete cotton fiber bleaching line with a capacity of approximately 10 tons/day from opening of natural cotton in bales to compression of the bleached fiber also in bales. Preventive maintenance and cleaning is performed on a weekly basis.

The line is fully automatic (in house and Siemens S7-300) and employees have basically a monitoring role when line is running except for lifting the cake formed cotton to and from the bleaching vessels.

The unit consist in general of;

Fiber opening:

01 Hergeth GMP fiber opener, yoc: 2009 for 16 bales

01 heavy and foreign particles trap, yoc: 2009

01 JOSSI MD-21 fire and metal trap control, yoc: 2004

01 Hergeth silo for fiber and dust removal, yoc: 2009

01 Trützschler DX-385 Deduster, yoc: 1995

Capacity: maximum 2000 kg/hr

Bleaching process:

02 stamping presses (one SME from 2007 and one Autefa from 1986 both fed with Trützschler condensers. Spray water is added in the process.

02 bleaching vessels each containing 3 cakes for each batch, along with separate peroxide tanks/system (see sketch) and water tanks for rinsing. A separate fully automatic chemical kitchen is integrated in the process in house made 2005.

While 2 baskets are in bleaching process, 2 baskets are under loading. Balanced process.

2 Mühlmann centrifuges from 2013 each with max speed of 700 rpm

The whole process with cakes is served by an overhead movable crane make Demag DR-com rope hoist is from 2012, the traverse/carrier is from 1984.1.

01 Temafa model 360 wet opener with feeder, yoc: 1998

Drying and baling process:

01 Fleissner T6413 cylinder drier, yoc: 1998 with 6 drums drying material app. 40% moisture down to average 6% moisture. Steam heated dryer (boiler not included) with a power consumption of 651 kW/hr. At exit is a built-in moisture control measuring moisture on band as well as a metal detector also built in on the transport band.

01 Autefa 280.400 semi-automatic bale press, yoc: 1999. Pressed bales measure 1370 x 640 mm and weight is 180–220 kg/bale.

Handling of effluent water for the full process (see drawing).

The actual bleaching process heat (50-120 deg. C) and the cooling is NOT included in the scope. However, we can through layout show what is needed for this.

Rinsing:

Rinsing first round, 85 deg. C from rinse water tank

Rinsing 2 recycled water 50 deg. C from tank 700

Rinsing 3 water 80 deg. C from tank 300

Rinsing 4 water 50 deg. C from tank 400

Handling of chemical for the bleaching process

Fully automatic chemical process built in 2016 with Siemens S7 automation in house engineered. All installed in one room (see drawing)