pneumatic conveying Articles

  • Wastes utilisation in foundries and metallurgical plants with pneumatic conveying techniques – selected aspects

    The issue of wastes disposal and utilisation in metallurgical and foundry industries is crucial in present economical and environmental protection conditions. The metallurgical processes generate enormous amounts of wastes every year. The considerable amount of wastes is furnace dust (the amount varies from the type of furnace) and other fine materials. At the Department of Foundry, Silesian ...


    By Inderscience Publishers

  • Pneumatic powder injection technique as a tool for waste utilisation

    The problem of wastes in metallurgical and foundry industries is very important. The considerable amount of wastes is furnace dusts and other fine materials. At the Department of Foundry, the experiments with the use of pneumatic injection method were carried out to utilise these materials. The results of dusts injection into cupola, slag foaming with the use of powdered coal-furnace dusts ...


    By Inderscience Publishers

  • Gentle emptying of powder tankers

    Gericke of Switzerland has successfully designed a pneumatic conveying system for discharging delicate powders and granulates from road tankers, and has also introduced a similar system for unloading product from dry bulk container liners. Several other recent pneumatic conveying developments are also itemised. Retention of powder characteristics such as bulk density and particle size is ...


    By Gericke

  • Art or Science?

    The choice between dilute phase pneumatic conveying and flexible screw conveying is not always clear Everyone has rules of thumb when it comes to choosing a conveying system — rules based on bulk material characteristics, required flow rates and distances, source and destination, plant configuration, and other variables. But those with experience in all types of systems will tell ...


    By Flexicon Corporation

  • Grain case study - National Oats Co.

    National Oats Reduces Maintenance and Replacement Costs, Improves Flow Control with HammerTek Smart Elbow® "Cost-effective, compact, convenient and durable." That's how National Oats' Bob Williams, chief project engineer, describes the HammerTek Smart Elbow®. The installation of three Smart Elbows proved to be an effective flow control remedy, reducing turbulence and abrasion to the ...


    By HammerTek Corporation

  • Abrasives case study - Stonhard

    Elbow Cuts Maintenance Problem Stonhard Inc., processes and packages colored silica aggregate at its Ft. Wayne, IN facility. The material is part of a three-component mortar consisting of liquid epoxy resin and a liquid curing agent used for industrial and commercial flooring applications. Some 82,000 lb. of this aggregate is pneumatically ...


    By HammerTek Corporation

  • Dosing and mixing of powdered activated carbon for flue gas applications

    Subject: Powdered activated carbon (PAC) is dosed in dry powder form into flue gas for the removal of dioxins, furanes, mercury and other heavy metals from flue gases. Gericke supplies complete solutions for the handling of bulk solids. These complete installations are characterized by their clean, accurate, trouble- and dustfree operation. Application: Furnaces, incinerators, sinter ...


    By Gericke

  • Power Case Study - North Incinerator

    North Incinerator Finds Solution to Excessive Sweep Elbow Wear At Montgomery County's North Incinerator plant, there was a problem several years ago. The Dayton, OH, area trash-to-energy plant was experiencing repeated shutdowns due to sweep elbow failure in its dense phase pneumatic conveying system, a component of the lime injection system in operation there. In order to ...


    By HammerTek Corporation

  • Abrasives case study - Essroc Materials, Inc.

    Plugging, Surging and Wear-Through Virtually Eliminated by Smart Elbows® At Essroc Materials, Inc., formerly Coplay Cement, plugging and elbow wear in pneumatic conveying lines caused unnecessary downtime and repair expense. The Frederick, MD, facility is a wet-process cement plant that produces 350,000 to 400,000 tons of cement a year using two 400-foot-long rotary ...


    By HammerTek Corporation

  • Plastics case study - Acro

    Smart Elbow® solves plastics problem Subject ACRO Extrusion Corporation's Wilmington, DE plant. Situation Stainless steel sweep elbows were wearing through at ACRO Extrusion Corporation, causing considerable downtime, product loss, and maintenance expense. The sweep elbows in their pneumatic conveying system were ...


    By HammerTek Corporation

  • Moving difficult-to-handle bulk materials with flexible screw conveyors

    Flexible screw conveyor systems can be engineered to transport bulk materials that tend to pack, cake, smear, break apart or fluidize, and can prevent the separation of blended products. Flexible screw conveyors (Fig. 1) are suitable for most bulk materials, from sub-micron powders to large pellets, both free-flowing and non-free flowing. They are capable of conveying bulk materials at any angle ...


    By Flexicon Corporation

  • Case study: Equipment refurbishment

    Challenge A GK customer purchased a used VIBRA-MILL Sand reclaimer sight unseen from a closed foundry in the south and wanted to use it to break down sand for pneumatic conveying. The VIBRA-MILL, originally commissioned in 1975, was of unknown condition. Approach The customer returned the unit to have GK inspect the machine to determine if it was in ...


    By General Kinematics

  • The mills grind efficiently

    The – “Milser Mühle“ – has relied on AERZEN for 50 years When the Borgstedt Family took over the Milser Mühle 130 years ago, at first, it only produced feed material, and then, from 1918, it started to produce flour for human food. “Therefore we selected oilfree compressing AERZEN Positive Displacement Blowers of series GM as conveying air producer ...

  • Plastics case study - Rensselaer

    Cutting Corners is Easy with New Elbow Design for Piping A simple and inexpensive upgrading of the pneumatic conveying system at the Rensselaer Plastics Co., Rensselaer, IN., is reducing maintenance while saving the company money in a number of ways. Rensselaer Plastics Co. specializes in PVC piping products for the plumbing trade. Annual sales of the company are in the ...


    By HammerTek Corporation

  • Case study - Wastewater - Alexandria Sanitation Authority

    Smart Elbow® prevents wear-through in wastewater treatment plant's lime conveying lines. Alexandria Sanitation Authority, Alexandria, Virginia Situation As the city's primary sewage treatment facility, this plant treats an average of 40 to 45 million gallons a day. At peak, the volume can exceed 80 million gallons a day, as the plant operates ...


    By HammerTek Corporation

  • Abrasives case study - Western Paving Corporation

    Smart Elbow® ends elbow wear problem in paving plant Subject Western Paving Corporation's Denver, Colorado plant Situation A division of Western Mobil, Western Paving Corporation makes asphalt for their own extensive paving operation as well as supplying others'. The plant produces 29 different paving product mixes, ...


    By HammerTek Corporation

  • Abrasives case study - Fiberglas Canada

    Clogging was a major problem in transferring abrasive material in a fiberglass process. The resulting operating inefficiencies were ended with a new type of piping elbow. By Leslie Burt Fiberglass is produced in an automated process at Fiberglas Canada's plant in Scarborough, Ontario. The process starts with six ingredients, the main ones being sand, borax, soda ash and limestone. After they ...


    By HammerTek Corporation

  • Abrasives case study - Chromalloy

    Chromalloy, Drilling Fluids Division, produces barite at its Houston, TX facility. Chromalloy was using standard elbows on its 4- and 5"-diameter pneumatic conveying lines, which carry barite from the grinding mill to the storage tanks where it is stored prior to loading into hopper cars and bulk trucks. Figure 1: A cross section of the new type of elbow in use at Chromalloy. Suspended ...


    By HammerTek Corporation

  • Energy - World’s biggest bio fuel power plant

    Oy Alholmens Kraft Ab runs the biggest bio fuel fired power plant in the world. The plant is located in the town of Pietarsaari on the Finnish west coast. The plant uses mostly biotype materials as the power source. They include peat, bark, and wood and wood chips with coal as the backup reserve fuel. The total annual production is approximately 265 MW. The versatile power plant enables the ...


    By Kopar Oy

  • Weigh batching: the benefits of an automated system

    In many plants that batch-blend bulk products, weigh batching is a manual, time-consuming operation in which ingredients are weighed individually before being charged to a blender or other process vessel. A significant number of such plants could benefit from the installation of an automated weigh batching system. For small as well as large operations, an automated weigh batching system can pay ...


    By Flexicon Corporation

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