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Hardwood Pulp Mill with Continuous Kamyr Digester.

Woodhandling (Sunds Defibrator / Rauma)  1994

 

Log intake conveyor Length 12m, Width 4m  7.5kw

Unscrambler conveyor Length 6m, Width 4m 11kw

Flat belt conveyor Length 9m, Width 1.2m  15kw

Wash roll conveyor Length 4m, Width 1.4m Nº of rollers 10 7.5kw x 2

Chipper feed belt conveyor Length 6m, Width 1.2m  11kw

Metal Detector

Oversize metal detector with clip hoist unit

Chipper feed chute maximum log length 3m

Chipper Rauma G.S. 12-3300, opening width/height 850/800mm, speed 250 rpm, twin motors, 630 kw drive, 6, 2720 t/week, running 8hr/day for 7 days

Chipper discharge pocket screw Length 12m, Thread dia 1200mm 45kw

Vertical screw conveyor Length 8m, Thread dia 800mm 45kw

Chip screen CSR-400 screen area / deck 16 m²  11kw

Rechipper belt conveyor

Accepts screw conveyor Length 10m, Thread dia 800mm  22kw

Sawdust screw conveyor Length 5m, Thread dia 400mm  5.5kw

Troughed belt conveyor Length 86m, Width dia  800mm  11kw

Reclaim screw reclaiming area diameter 25m  156kw

Troughed belt return conveyor Length 68m, Width dia  800mm 4.5kw

Dewatering conveyor Length 18m, Width dia  1000mm   4kw

 

Chip wash plant

Sunds Defibrator FT160

Scrap separator, screw drainer and vibro bin.

 

Pre-Steamer Bin

Steam use 4000 kgs/hr. with twin screws.

 

Chip Meter

8 rpm to 15 rpm,

 

L.P. feeder

24 rpm

 

Steaming vessel

18 rpm at 1.3  bar steam pressure.

 

H.P feeder model 130L

8 to 10 rpm, Hagglunds hydraulic drive model MA141, load 30-40 bar

 

H.P.

liquor pumps flow  1800 to 2000 lpm., top circulation pump flow 12,000 to 15,000 lpm. At 10 to 11 bar pressure and  chip chute circulation pump flow 2000 lpm.

 

Digester

Kaymr continuous digester, size 21895 x 2540, volume 286.132 mtrs/3, max throughput of 19T of air dry chips in 75% yield. Blow flow 2200 lpm.

Working pressure 8.5 to 9 bar, steam phase temp 175 deg C., liquor phase temp 166 deg C. active chemicals sodium sulphite caustic, Na2SO3, average yield is 76%, residual sulphite in the black liquor is 9 to 11%, differential pressure is 40%,  back water to bottom 400 lpm., temp 40deg  C., 70% above scrapper and 30% below, digester computer is Foxboro I/A, bottom scrapper with Hagglunds hydraulic drive MA141, speed 8 to 10 rpm, load 50 bar, max load to stall 210 bar., blow tank  with agitator working at atmospheric pressure, Sprout Waldron rotor drainer 4ft x 12 ft. New base fitted 2000 with Duplex coating and complete base spare. Two spare HP pumps and one spare LP pump all overhauled ready for use.

 

Three Kaymr  washers with concrete vats.

Drums are stainless manufacture.

 

Refiners

Primary refiner Sunds RG50, year 1985 motor 2.5 MW, consistency is 10 to 15% and out is 20 to 25%. One spare refiner not in use and year is 1958. Plate life 4000 hrs.

 

Secondary refiners three off Sprout Bauer twin flow, model 48” , operating in series, motors 1.5 MW, consistency 5.5%, freeness after refining 320 deg CSF. number one load is 90 KWT/Hr. and number two is 80 KWT/Hr. Third unit is a spare. Plate life 2000 hrs.

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Contact us for more details: info@karton-ru.com