CRATOS | Unlimeted Power

As the technology leader, Rud provides components and total solutions on the basis of round link steel chains and FORKY for energy generation with coal and biomass as well as in the area of recycling. Be it material supply, ash removal or cleaning scraper, Rud CRATOS offers the suitable solution.

Retrofit of coal feeder conveyor at coal fired power plant in Australia

Description of the problem

• The corrosion of pin & bush chain links causes knuckling and frequent chain replacement
• The time and the labour for major outages has to be shortened

RUD Solution

• Retrofit of existing coal feeder conveyor
• Replacement of pin & bush chain by RUD round link chain 14x50
• Installation of reversing shafts and grooved idlers
• Installation of drive shafts and pocket wheels
• Installation of RUD scraper bar MEE-T

Result

• Short-term project time
• Excellent performance of new chain system

Retrofit of ash conveyor at Coal Power Plant in South America

Description of the problem

• Frequent chain breakage
• Frequent scraper bar breakage
• Frequent chain stoppage
• High maintenance demand

RUD Solution

• Measurements were taken by RUD Engineer
• The geometry and the casing allowed the retrofit with RUD round link chain system
• The existing casing were adjusted for the new RUD system
• Replacement of existing pin & bush chain into RUD round link chain system
• Installation of RUD round link chain 19x75 and SSRF-system

Result

RUD focus was to reduce the maintenance activity on the chain with lower cost for the cusomer and trouble-free performance.

Retrofit of submerged scraper conveyor in at coal fired power plant in Germany

Description of the problem

Heavy duty ash and slag leads to increase of conveying capacity and drive power.

Result

• Short-term project time
• Excellent performance of new chain system
• No shutdowns due to overfilling of conveyor

RUD Solution

• Retrofit of existing submerged scraper conveyor to increase conveying capacity
• Upgrade of round link chain 26x100 into 30x120 in existing casing
• Installaton of RUD submerged overhung idler (SOI)

Retrofit of biomass ash conveyor at biomass power plant in South America

Description of the problem

• Frequent chain breaks
• Frequent stoppages for maintenance
• Frequent chain restrain
• Low equipment availability.

RUD Solution

• Measurements were taken by RUD
• All responsibilities have been clarified by RUD
• New casing design for the RUD round link system has been developed
• RUD round link chain 16x64 and SSRF system was installed

Result

RUD focus was to reduce the maintenance activity on the conveyor, extend the lifetime with lower costs for the client and a trouble-free system.

Feeding conveyor for biogas facility at biomass power plant in South America

Description of the problem

• Frequent chain breaks
• Frequent stoppages for maintenance
• Frequent chain restrain
• Low equipment availability

Result

• Reduction of maintenance activities
• Trouble-free performance

RUD Solution

RUD provided requiered chain System ex stock and regular RUD Service.

Conversion of screw conveyor to chain conveyor at biomass power plant in South America

Description of the problem

• Frequent wear on the screw
• Frequent screw banding
• Frequent wear on the bearing
• High maintenance demand

RUD Solution

• Measurements were taken by RUD
• All responsibilities have been clarified by RUD
• The geometry and the casing allowed the retrofit with RUD Round Link Chain System
• The existing casing was adjusted for the new system demands
• RUD Round Link Chain 14x50 and SSRF system was used

Retrofit of Biomass Ash Conveyor ain a in Biomass power plant (farm waste) in North America

Description of the problem

• Three separate farms in Leamington Ontario with problems in ash conveyor
• premature chain wear, uneven wear between the two strands, large amount of maintenance and down time
• Links (2-4) are removed each month from the chain and the chain is lasting about 18 months before replacement is required
• Current system is a 14x50mm through hardened chain with shackles

RUD Solution

• RUD suggested case hardened chain-system with SSRF attachments
• 10 teeth multi-part-sprockets and flight bars

Result

• Installation of new RUD system in September of 2011
• Trouble-free operation since retrofit