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  • 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

  • RECOMMENDED GOOD PRACTICE - BLRBAC

    Recovery boiler explosions fall into four categories -- smelt water explosions, auxiliary fuel explosions, explosions from ignition of unburned gases from pyrolyzed black liquor, and dissolving tank explosions.Learn More

  • Cleaner for the smelt spout of a recovery boiler

    May 03, 2019 · A cleaning apparatus for a smelt spout of a recovery boiler, which apparatus comprises a motorized cleaning member (7) for cleaning the smelt spout (1). The cleaning apparatus further comprises a path (5) and a cleaning unit, which comprises motorized transfer means for transferring the cleaning unit to the location of the smelt spout (1) along the path.Learn More

  • Recovery boiler smelt spout - Champion International

    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 Learn More

  • Recovery Furnace - an overview | ScienceDirect Topics

    Smelt is the product of inorganic reactions in the recovery furnace. At the same time as the carbon is consumed, the residual inorganic portion melts. Inorganics flow out of the furnace through smelt spouts, Fig. 11.6 The amount of smelt inside the recovery boiler furnace has …Learn More

  • (PDF) Smelt spout corrosion in a recovery boiler

    cracking in wall tubes at smelt spouts and airports. molten smelt environments. Upper furnace and furnace RECOVERY BOILER EQUIPMENT AND OPERATION - TAPPI.orgThe recovery boiler is an integral part of the steam and power balance at the mill A recovery boiler accomplishes three major tasks; burning the black liquor boiler through smelt spouts.Learn 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

  • 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

  • US7891325B2 - Cleaner for the smelt spout of a recovery

    A cleaning apparatus for a smelt spout of a recovery boiler, which apparatus comprises a motorized cleaning member ( 7 ) for cleaning the smelt spout ( 1 ). The cleaning apparatus further comprises a path ( 5 ) and a cleaning unit, which comprises motorized transfer means for transferring the cleaning unit to the location of the smelt spout ( 1 ) along the path.Learn More

  • Cleaner for the smelt spout of a recovery boiler

    Cleaner for the smelt spout of a recovery boiler. 1914477 - EP07397033B1 - EPO Application Oct 12, 2007 - Publication Jun 29, 2016 Hannu Koskela Ari Saarela Kalle Salmi.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

  • TAPPI PEERS Working Towards a Safer Recovery Boiler …

    Recovery Boiler Operation Speaker Name Month ##, 20## Page 001744 PEERS 2016. Contents Smelt Spout Systems – Hood systems – Modern hood system improvements Smelt Spout Robot – Robot configurations – Video demonstration Liquor Station with Automated Port RodderLearn More

  • Smelt spout robot for recovery boiler - ANDRITZ

    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-lasting operation of smelt spout …Learn More

  • Smelt Spout Failures - And Prevention

    Jan 30, 2020 · Smelt spouts are an integral part of a recovery boiler operation, aiding in the removal of the molten smelt from the lower furnace and safely directing it to the dissolving tank where it dissolves Learn More

  • AMERICAN FOREST & PAPER ASSOCIATION AMERICAN …

    • Liquor System - heavy black liquor storage through dissolving tank and smelt spout cooling system. • Boiler Water - boiler makeup treatment facilities and condensate return systems through recovery boiler steam outlet non-return valve. • Furnace Gas - Combustion air fan inlet through flue gas stack outlet including sootblower.Learn More

  • Recovery boiler smelt spout - International Paper Company

    Recovery boiler smelt spout . United States Patent 4750649 . Abstract: 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 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

  • RECOVERY BOILER

    Recovery Boiler A boiler is a special unit used to purify the compound - an organic chemical compounds contained in Black Liquor (waste cooking from the digester) and at the same time as high-pressure steam generator (High Pressure Steam). An organic compound with the …Learn More

  • A laboratory study of recovery boiler smelt shattering

    In kraft recovery boiler operations, molten smelt (mainly consisting of sodium carbonate and sodium sulfide, and small amounts of sodium sulfate, sodium chloride, and potassium salts) flows out of the boiler at 800°C-850°C down a number of spouts, at a flow rate on the order of 1 L/s per spout, before falling into the dissolving tank belowLearn More

  • Recovery boiler smelt spout - patentcut.com

    Recovery boiler smelt spout US6111232; A heating element comprising: a body having a heating section; heating means inserted in or adjacent to said body, said means capable of generating heat, having a heat flux q 1 at a temperature t 1; and.Learn More