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Rinheat Oy www.kaukointernational.ru 1 www.rinheat.fi
Rinheat Oy
www.kaukointernational.ru 1www.rinheat.fi
Rinheat
Company
• Rinheat Oy was established in 1986, Espoo, Finland
• The main facilities are evaporation and heat-exchange plants for pulp and paper industry
• Rinheat Oy technology is intellectual property of the company and protected by several patents
• Since the establishment in 1986 the company has delivered more than 80 heat recovery systems for TMP andCTMP plants all over the world; more than any other supplier
www.kaukointernational.ru 2www.rinheat.fi
Rinheat
Rinheat Oy provides advanced technology for the following areas:
• Modernization of black liquor evaporators
• BCTMP evaporators
• NSSC evaporators
• Heat-exchangers for TMP
Rinheat scope of supply can includes: from main machinery up to system delivery «turn-key».
The company success is based on clear understanding ofthe process, multiple development and close cooperationwith experienced subcontractors in the detailed design,manufacturing and installation.
Products and services
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• Capacity of evaporated water up to 810 т/ч
• Increase pulp production -> extra income -> payoff through the production growth
• Firing liquor dry solids content 80 % (virgin fiber)
• Good energy economy
• Good availability
• Low maintenance costs
• Maximal COD removal from secondary condensates
• Low cost
1. Maximal usage of existing machinery
2. Short erection time
Rinheat OyBlack liquor evaporator modernization
New evaporator design
• OT Concentrator is designed to perform without plugging, having liquor outside the tubes and steam inside the tubes
• CS Evaporator is designed for good heat transfer, low pressure drops and high secondary condensate quality
• CC Condenser is designed for good heat transfer, small pressure drop and low pressure working conditions
• MVR Evaporator is an evaporator driven by mechanical energy or electricity
Targets
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Rinheat OyBasic design data
• Black liquor dry solids flow 4010 tds
• Weak liquor dry solids 16,4 % and temperature 80 oC
• Feed liquor dry solids to the MVR 18,5 %
• Firing liquor dry solids 80 % (without ash) and temp.132 0C
• Medium pressure steam 10,5 bar (g)
• Low pressure steam 3,5 bar (g)
• Cooling water temperature in ≤ 20 oC and out 40 0C
• Evaporation capacity of MVR plant 60 t/h evaporated water
• 1A,1B and 1C coverted to larger, 3700 m2 , heating surface by the purchaser
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Rinheat OyMain machinery supply
• New MVR plant (complete set), 4100 m2
• New 7.effect, 6000 m2
• New surface condenser, 4000 m2
• New concentrator for medium pressure steam, 3000 m2
• New concentrator for low pressure steam, 3000 m2
• Evaporator conversion 1A → 2C
• Pressurized accumulator for firing liquor, 900 m3
• Flash tank for the 6.effect
• Flash tanks for medium pressure steam and secondary steam condensates
• New vacuum pump, 10 000 m3/h
www.kaukointernational.ru 6www.rinheat.fi
Rinheat Oy
Benefits
- Non-plugging
- Visual inspection
- Liquor distribution
- Short vapor ducts
- Several tube bundles
- Steam at different pressure can be used
- Built-in desuperheater for steam
- Both sides can be washed
OT Concentrator
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Rinheat Oy
Liquor
- Two pass design
Steam side
- Condensate stripping- Grid baffles- Small diameter- Inert gas removal
Benefits
- Complete counter-current flow - Built-in desuperheater for steam - Excellent secondary condensate segregation- Low pressure drop
CS Evaporator
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Rinheat Oy
- Complete counter current flow
- Efficient secondary condensate segregation
- Grid baffles
- Inert gas removal
- Low condensing temperature
- Small installation area
CС Condenser
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Rinheat Oy
Benefits
- Short steam ducts
- Excellent for pre-evaporation and capacity upgrade
- Large steam source or cooling water pipe not needed
- Grid baffles
- Minimizes the need for sweetening
МRV Evaporator
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Rinheat Oy references
Year Customer Mill Project Final concentration, % Capacity, y/h
2013 Stora Enso Oy Heinola, Finland MVR modernization 21 50
2013 Domsjö FabrikerAditya Birla Group
Örnsköldsvik, Sweden MVR troubleshooting 38 150
2013 Metsä Board Oy Kaskinen, Finland Evaporator modernization 65 400
Evaporators
Year Customer Mill Plant Steam flow, t/h
2014 Valmet Technologies, Finland Sappi Kirkniemi, Finland 1 modernization 21
2012 Netso paper Sweden AB, Sweden APP Guangxi Jingui, China 1 modernization 24
2011 Norske Skog Skogn AS, Norge Skogn, Norge 1 modernization 75
Heat recovery systems
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Kaukointernational in RussiaFor decades Kaukointernational has operated as a supplier of paper and pulp-industry machinery, equipment, and consumables for its customers in Russia
GSPT Ltd. - paper machine
Paul Wegner GmbH - blades
Karl Buch GmbH – rolls
Quattrotec Oy – slitting winder
Scienta Oy – sensors
Ralex Industry – roll service on-site
ECP Oy - precipitators
Rinheat Oy – evaporators
Flootech Oy – water treatment
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Thank you for your attention!
Contact person
Natalia Kurochkina
Sales development Manager
Contact information
Bolshoy prospect V.O., 18A, office 311
199034, St.-Petersburg
Russia
Tel.: +7 931 366 37 11
www.kaukointernational.ru
www.kaukointernational.ru 13www.rinheat.fi
