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  • Recovery boiler smelt spout - International Paper Company

    Recovery boiler smelt spout. United States Patent 4750649. A spout for a recovery boiler such as those used in the papermaking industry. As in prior art spouts of this type, the spout is provided with an internal cavity to thereby permit water cooling of the spout. By this invention, a duct is provided for the internal cavity, the duct applying Learn More

  • Recovery Boiler Smelt Spout

    Smelt spout robot. Our smelt spout can be utilized on any recovery boiler, and it is suitable for your local boiler condition. The smelt spout is based on proven technology, and our smelt spout area is a complete solution with tube openings, wall box, spout, hoods, shattering equipment and washing of doghouse.Learn More

  • Fornax Services

    Oct 08, 2019 · The factual part of this post has been taken out of the Spring 2018 BLRBAC meeting minutes. In September 2017, there was a smelt water reaction (explosion) in a recovery boiler in Canada that resulted in 49 days of loss of production and a substantial damage to the boiler…Learn More

  • Improving Safety Around Recovery Boiler Operations - Paper

    Mar 05, 2021 · Below are four inventions and innovations that have improved the working conditions around recovery boilers and made operation of the boiler more stable. Smelt Spout Micro Hood Arrangement. One area considered the most dangerous for operators, and one of the leading causes of recordable injuries is the spout deck on a recovery boiler.Learn More

  • Smelt Spout Corrosion in a Recovery Boiler, 2010 TAPPI

    Severe corrosion led to an in-service failure of one of the six spouts on a recovery boiler at Cenibra. The failure resulted in a large amount of cooling water entering the boiler and contacting smelt around the spout opening, but fortunately no smelt-water explosion occurred. An extensive investigation was conducted to determine the causes of Learn More

  • Recovery Boiler Smelt Spout

    Smelt spout robot. Our smelt spout can be utilized on any recovery boiler, and it is suitable for your local boiler condition. The smelt spout is based on proven technology, and our smelt spout area is a complete solution with tube openings, wall box, spout, hoods, shattering equipment and washing of doghouse.Learn More

  • (PDF) Understanding recovery boiler smelt runoff …

    Smelt fluidity, the ability of smelt to flow out of recovery boiler spouts, is inversely related to smelt viscosity. Molten smelt has a viscosity value between 2.5 and 5 mPa*s, which is not Learn More

  • US Patent for Recovery boiler smelt spout Patent (Patent

    Recovery boiler smelt spout . Jul 10, 1987 - International Paper Company. A spout for a recovery boiler such as those used in the papermaking industry. As in prior art spouts of this type, the spout is provided with an internal cavity to thereby permit water cooling of the spout. By this invention, a duct is provided for the internal cavity Learn More

  • Lime Recovery Kiln | Refractory Products - Resco Products

    QUIKTURN™ 56SCG is a 55% silicon carbide content refractory that is installed by pneumatic gunning in the boiler lower sidewalls and bottoms of recovery boilers. RESCOBOND® 3000 has also been utilized in recovery boiler applications, including the smelt spouts.Learn More

  • Fornax Services

    Jan 29, 2020 · Smelt spouts have a limited lifetime and that is due to thermal stresses but also erosion effect of the smelt flow during an operation. Molten smelt exits the recovery boiler at a temperature as high as 850 °C (1500 °F). So not surprisingly, the smelt spouts are under a lot of thermal stress.Learn More

  • Recovery Boiler Treatments | Solenis

    Solenis offers a variety of chemical and equipment solutions for recovery boiler systems, including feedwater, condensate and internal boiler water treatments; organic and inorganic corrosion inhibitors for smelt spout cooling systems; monitoring and control systems; and proprietary statistical software that can detect leaks with maximum Learn More

  • Recovery boiler smelt spouts - YouTube

    The cleaning unit for the smelt spout of a recovery boiler comprises motorized transfer means for transferring the unit to the location of the smelt spout. Here a motorized transfer means refers toLearn More

  • Smelt Spouts - babcock.com

    Smelt Spouts. The design, installation and maintenance of smelt spouts, used to discharge liquid smelt from the furnace to the dissolving tank, are important to the safe, reliable operation of Kraft recovery boilers. Since supplying the first Kraft recovery boiler in 1929, B&W has led the development of many improvements in safer, longer Learn More

  • Improve recovery boiler safety with a custom spout plug

    Our smelt spout can be utilized on any recovery boiler, and it is suitable for your local boiler condition. The smelt spout is based on proven technology, and our smelt spout area is a complete solution with tube openings, wall box, spout, hoods, shattering equipment and washing of doghouse. We are continuously improving the lifetime of the smelt spout and working on minimizing the risk of dangerous situations with smelt spouts. The benefits of our smelt spout …Learn More

  • TechNews: A robotic solution for a harsh environment

    The recovery boiler smelt spout area is an unwelcoming and potentially dangerous place to work. However, essential regular tasks need to be carried out in the area for efficient and smooth operation of the boiler. A combined team of ANDRITZ design experts and workshop engineers have come up with a smart solution, the Smelt Spout Cleaning System, that enables essential work and maintenance to Learn More

  • TAPPI PEERS Working Towards a Safer Recovery Boiler …

    For Black Liquor Recovery Boilers Smelt Spout Deck Safety Considerations Condition Hazard Suggested Precautions Smelt splatter from spouts Chemical and temperature burns caused by splashing out of spout. Install a system/method to remotely adjust the angle of the shatter spray jet. Smelt splatter from spouts Smelt plugging of spouts.Learn More

  • (PDF) Smelt spout corrosion in a recovery boiler

    Severe corrosion led to an in-service failure of one of the six spouts on a recovery boiler at Cenibra. The failure resulted in a large amount of cooling water entering the boiler and contacting Learn More

  • Recovery boiler smelt spout - Champion International

    FIG. 3 is an enlarged cross-sectional view of a smelt pour spout of a recovery boiler in a shut-down status with a heating element of this invention inserted therein. FIG. 4 is an enlarged cross-sectional view of a frozen smelt pour spout of a recovery boiler having a heating element of …Learn More

  • TIP 0416-23 Explanation of recovery boiler leak indications

    TIP 0416-23 Explanation of recovery boiler leak indications/ 4 Color change in smelt at spouts As in the case of a bed blackout, contact cooling of smelt from water/steam may result in a change of color. If there is water present near the point where smelt exits the furnace, then it is likely that the smelt will take on a darker color.Learn More

  • US Patent for Recovery boiler smelt spout Patent (Patent

    Mar 19, 1998 · 20. A smelt spout opener for opening a smelt spout of a furnace used in a chemical recovery process in which concentrated black liquor is burned in the furnace to produce a gas and a hot molten smelt in the bottom of said furnace and the hot molten smelt is discharged from said furnace via a smelt spout where said smelt has solidified in or about said spout preventing or interfering with the Learn More

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