pulverizer Articles

  • Neue Herbold Pulverizers / pulverizing systems

    NEUE HERBOLD ZM series pulverizers (pulverisers) are designed for the pulverizing of mid-hard, brittle to high impact plastics that require the final material to be in powder form. Typical applications are PE, PVC, PC and other various types of plastics. The required pulverizer (pulverisers) input material must be in a granulate form with a maximum size of 6-8 mm (1/4-5/16 in.). ...

  • E and EL Pulverizer Springs - Case study

    Purpose To advise owners and operators of E or EL pulverizers to inspect dual purpose springs. The dual purpose spring serves two functions: 1) preloads the grinding elements, and 2) prevents the upper grinding ring from rotating. Background Existing dual purpose springs are typically replaced with new springs when replacing a set of worn out grinding ...


    By Babcock & Wilcox MEGTEC LLC

  • E and EL pulverizer bottom ring assembly - Case study

    Purpose Advise owners and operators of The Babcock & Wilcox Company (B&W) E and EL pulverizers of a revised recommendation for checking the bottom ring and yoke seating surfaces. Problem Significant rework at assembly is often required to achieve the 80% bluing transfer between the yoke and bottom grinding ring seating surfaces. In many cases this rework is not ...


    By Babcock & Wilcox MEGTEC LLC

  • E/EL Pulverizer bottom ring lifting clamp - Case study

    Purpose Alert customers on safety procedures when using the Babcock & Wilcox bottom grinding ring lifting clamp. Problem The Babcock&Wilcox lifting clamp is designed only to lift the bottom ring off the ring seating surface of the yoke and to position the ring back on top of the ring seating surface of the yoke, when the bottom ring is completely inside ...


    By Babcock & Wilcox MEGTEC LLC

  • B&W Roll Wheel Pulverizer Maintenance - Case study

    Purpose This Plant Service Bulletin is a reminder to verify the integrity of special maintenance tools before use, to review the recommendations for proper use of those tools, and to follow the procedures set forth in the B&W Roll Wheel Pulverizer* Operating and Maintenance manual when making any repairs or performing maintenance. Problem/Risk Major ...


    By Babcock & Wilcox MEGTEC LLC

  • Spiral bevel gear bolts - B&W Roll Wheel™ Pulverizer gearbox - Case study

    Purpose To alert owners and operators of B&VV Roll Wheel™ pulverizers of a possible problem with the bolls on the spiral bevel gear (See Figure 1). Problem The constant cyclic loading In the B&W Roll Wheel™ gear drive may cause the spiral bevel gear bolts to work loose. Once loose, the bolts experience an additional bending load, thus ...


    By Babcock & Wilcox MEGTEC LLC

  • B&W Roll Wheel™ Pulverizer silicone O-Rings and the Use of Synthetic oils - Case study

    Purpose Advise owners and operators of a possible problem with silicone O-rings when using synthetic oils in the roll wheels. Background/Problem A roll wheel bearing failure has been attributed to the incompatibility of a particular synthetic oil and the silicone O-ring material. The O-ring failure resulted in the loss of lubricant and, subsequently, a ...


    By Babcock & Wilcox MEGTEC LLC

  • Turning biological waste treatment plant sludge into a fuel source

    North Carolina, as part of its landfill regulations, banned all waste treatment plant sludges from general landfills in March, 1989. Cranston Print Works Company was producing approximately 20 tons per day of 18% solid non-hazardous sludge in its extended aeration activated sludge waste treatment plant. Sludge disposal costs were $10,000 per week after the ban took effect. This paper traces the ...


    By Komline-Sanderson

  • A Customer's Success Story

    Tear it down. Strip the metal out. Pulverize the concrete. Shred it. Shear it. Dice it up and get it out of here. Bring it all down and start over. The idea of a total demolition job may sound haphazard and uncontrolled – but large-scale dismantling firms like North American Dismantling Corp. have moved far beyond the days of just swinging away with a wrecking ...

  • Greendale road shoulder, Greendale, Wisconsin

    The roadside along 51st Street between COllege Avenue and Grange Avenue in Greendale, Wis., is grass-covered, with its only distinguishing characteristic the lack of an aggregate shoulder alongside the asphalt pavement. Instead of a crushed aggregate shoulder, a 2-foot-wide asphalt shoulder abutted by a 6-foot-wide green shoulder has been constructed along 51st Street as part of a village of ...


    By Presto Geosystems

  • Innovative Filler Injection System for Powdered Recycled Urethane

    Cannon has developed the equipment to meter and mix a three-component slurry. High-solidcontent slurry, obtained by blending ultrafine PU powder in non-catalysed Polyol as the carrier, is fed as a third stream at low-medium pressure to a mixing head via the axial port of the mixing chamber originally used for metering colour paste. The recycling kit, dedicated dosing unit, and mixing head can be ...


    By Mobius Technologies

  • Applications guide to mass flow measurement in the power industry

    Precise, timely measurement of air, fuel, and gases is one way today's utilities can take action to protect themselves against rising costs and comply with increasingly stringent environmental requirements. Sierra thermal mass flow meters and control systems are designed expressly to fill these needs. They can make utilities more cost-effective in a variety of applications: Real-Time Fuel Line ...


    By Sierra Instruments, Inc.

  • Ammonium, nitrate, and total nitrogen determination in fly ash

    Fly ash is a by-product of the combustion of pulverized coal and is composed of small particles. The composition of the fly ash may vary considerably, however, all fly ashes contain substantial amounts of silicon dioxide (SiO2), aluminum oxide (Al2O3) and calcium oxide (CaO). Nowadays, air pollution control standards require a separation of flue gas before being released to the atmosphere. Fly ...


    By BÜCHI Labortechnik AG

  • `Sensitivity of Condensable Particulate Matter Speciation on Predicted Visibility Impacts – Case Study,` presented at the NCASI West Coast Conference, September 2005

    Introduction This paper evaluates a realistic case study for an existing major emission source that is required to evaluate visibility impacts at a nearby federally-protected Class I area. The fictitious source is a 1960's era coal-fired electric generating unit (EGU) characterized as a pulverized coal-fired, dry bottom, wall-fired boiler equipped with PM and NOx controls (i.e., ...


    By Trinity Consultants

  • Co-epuration of winery and pesticides effluents, activated sludge with tertiary nanofiltration, two new technologies for pesticides effluents treatment

    Wine-related activities produce significant volumes of wastewater characterized by high concentrations in organic matter. The term of pesticides effluents defines the water coming from the emptying and the rinsing of the equipment used to pulverize the phytosanitary products on the vines. Pesticide pollution of surface waters from vineyards applications represents a considerable hazard for the ...


    By IWA Publishing

  • The Electric Control System

    The Electric Control System Introduction   The electric control system is widely used in food , feed, flour, chemical and steel industries. With the combination control of centralized monitoring with case live control, it can intuitively reflect the operation conditions of the whole production line as well as the current & rotary speed of the mkain ...


    By Allance Pellet Machinery

  • Glass crusher for FOOD & BEVERAGES recycling

    Cogelme Glass Crusher in a very efficient manner destroys defected or expired wine, beer and other beverages glass bottles, as well as jars with food inside and helps to obtain pure glass and pure organic materials. Multiple benefits delivered to the food recyclers: The glass containers can be crushed to adjustable sizes, in base of the needs. Cogelme ...


    By Cogelme S.r.l.

  • Cement and Lime Kilns case study

    Cement and Lime Kilns PROCESS DESCRIPTION Cement, lime and gypsum manufacturing processes have in common the mixing of inorganic minerals calcined at high temperatures typically using rotary kilns (vertical kilns are also used). CEMENT Regular Portland cements are the usual products for general concrete construction. The raw ...

  • Cd(II) removal on surface-modified activated carbon: equilibrium, kinetics and mechanism

    Commercial pulverous activated carbon (AC-0) was modified through two steps: oxidize AC-0 acid firstly, impregnate it with iron using ferric chloride secondly. Orthogonal experiment was conducted then to prepare modified activated carbon with high Cd(II) adsorption capacity (ACNF). Batch adsorption experiments were undertaken to determine the adsorption characteristics of Cd(II) from aqueous ...


    By IWA Publishing

  • Quantifying the transport of energetic materials in unsaturated sediments from cracked unexploded ordnance

    Received for publication January 15, 2009. Dissolved explosive species have been found in the groundwater under military training areas. These explosives are thought to originate from munitions although the mechanism of transport to the groundwater is poorly understood. This study was conducted to determine whether ruptured unexploded ordnance may be a viable source term for these explosives. The ...

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