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gas steam boiler,condensing boiler,condensing steam . For Sale 2t biomass boiler Industrial Myanmar. Myanmar gas fired steam boiler price or cost. 3t/h Biomass fired steam Boiler in Myanmar 3t/h Biomass fired steam Boiler in Myanmar. cost for manufacturer 6t waste wood steam boiler for maufacturer 8t fire tube boiler for manufacturer 8tongas steam boiler,condensing boiler,condensing steam .

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  • Recovery boiler smelt spouts - YouTube

    Engineered to address the most dangerous task in recovery boiler maintenance, the SpoutRunner system automates the rodding of smelt for the safety of pulp and paper mill personnel. Simple to operate, it consists of a hinged pneumatic drive that, when activated, uses gravity and pneumatic force to travel up and down the spout with a custom-designed cleaning head that safely and reliably clears the smelt …

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  • US20080087302A1 - Cleaner for the smelt spout of a …

    FIG. 1 shows a typical smelt spout area of a recovery boiler, which comprises smelt spouts 1, along which the smelt is directed from the furnace 2 to the dissolving tank 3. Typically, the smelt is very hot (for example 750 to 820 C.). The possible splashes of

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  • US Patent for Recovery boiler smelt spout Patent (Patent …

    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

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  • Recovery boiler smelt spout - 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, the

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  • AMERICAN FOREST & PAPER ASSOCIATION AMERICAN FOREST & PAPER ASSOCIATION OPERATIONS & MAINTENANCE SUBCOMMITTEE RECOVERY BOILER …

    RECOVERY BOILER SAFETY AUDIT GUIDELINES March 1990 Revised July 2004 893 McLean Avenue, Yonkers, New York 10704 Refer to BLRBAC "Safe Firing of Black Liquor", "Chapt er 9 Smelt Spouts." - Review chemical treatment program and make

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  • Shielding arrangement for the smelt spout area of a …

    A method for improving the operation safety of the smelt spout area of a recovery boiler, which smelt spout area comprises a working area (6), as well as smelt spouts (2) connected to the lower part of the boiler for directing the smelt from the boiler to a dissolving tank (4).).

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  • Valmet Smelt Spout Robot - Reliable cleaning of recovery …

    In a typical recovery boiler there is one or more smelt spouts, and for example in large recovery boilers there may be over ten smelt spouts. The cleaning unit moves to the location of the smelt

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  • BLRBAC COMMON PRACTICES

    DeckHandTMSmelt Spout Robot. ConceptInstalled. ROI. • Minimize injuries to operators on spout deck • Allows operators to spend more time and focus on other operational tasks • Spouts are cleaned more frequently resulting in more consistent RB operation • Better cleaning of …

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  • 5-5 Inspection o Recovery Boilers - TAPPI

    measure only at air ports, smelt spouts, smelt line, or if DWD very high 7 INSPECTION METHODS (4) RECOVERY BOILER INSPECTIONS Useful documents: AF & PA Recovery Boiler Manual, 1992 NACE (composite tubes), 1992 TAPPI (UT surveys

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  • Smelt Spout Cleaning Robot

    Valmet's Smelt Spout Cleaning Robot helps save time and money! It can be designed to fit your specific boiler operation, ensuring optimum cleaning, safer boiler operation.

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  • Smelt Spout Corrosion in a Recovery Boiler, 2010 …

    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

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  • 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 flow1 L

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  • Characterizing Smelt Shattering in Recovery Boilers

    The molten smelt then flows out of the bottom of the recovery boiler through a number of smelt spouts to ensure sufficient drainage. The outflowing smelt stream is shattered into small droplets using one or more high pressure steam jets before falling into

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  • BLRBAC COMMON PRACTICES

    recovery boiler performing operating and/or maintenance functions. The document contains the following elements: • Condition or Topic Smelt splatter from spouts Smelt plugging of spouts. Set smelt spout cooling water temperature, setpoints, alarms, etc

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  • Formation mechanisms of "jellyroll" smelt in kraft recovery boilers

    In recovery boiler operation, maintaining a steady flow of molten smelt from smelt spouts is critically important for ensuring a safe operation of the dissolving tank and a steady flow of green liquor. Smelt spout openings need to be periodically cleaned, as they are

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  • 4-1 Recovery Boiler Equipment and Operation

    The purpose of the Smelt Spout is to transport char bed deposits from the furnace to the dissolving tank. By using our smelt spout, you will get an efficient, stable and controlled smelt flow, reducing noise and hazardous smelt risks. Our smelt spout can be utilized on any recovery boiler, and it is suitable for your local boiler condition.

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  • Process Recovery (PR) Boilers - Babcock & Wilcox

    PR Boiler Specifications. A chemical and heat recovery boiler for the pulp and paper industry; concentrated black liquor and combustion air are introduced into the furnace where heat is recovered as steam for electricity generation and process heating, and the inorganic portion of the black liquor is recovered as sodium compounds.

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  • Smelt Spout | Valmet

    The smelt spout area of a recovery boiler is one of the least desirable and sometimes also a dangerous place to work. However, essential regular tasks need to be carried out for efficient and smooth operation of the boiler. Smelt can cause several issues in the spout area as it tends to coagulate and plug the spouts and needs regular cleaning.

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  • Smelt spout robot for recovery boiler - ANDRITZ GROUP

    The smelt spout area of a recovery boiler is one of the least desirable and sometimes also a dangerous place to work. However, essential regular tasks need to be carried out for efficient and smooth operation of the boiler. Smelt can cause several issues in the spout

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  • Smelt Spout of Recovery Boiler 2) - YouTube

    27/2/2015 · Valmet Smelt Spout Cleaning Robotefficiently removes smelt deposits from recovery boiler smelt spouts in a carefully designed sequence. The spout rodder ensu

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