There are many different types of chain conveyors on the market, all of which start out with a continuous chain and fixed flights that operate within an enclosed trough. The word “drag” encompasses all styles such as scraper, paddle, or En-Masse because each type of conveyance moves the chain and product by dragging it forward. The paddle drag conveyors work […]
There are many different conveying technologies available. To be educated on the distinct types and the best markets for which they are efficiently utilized is the first step. Below are the different types of conveyors used for bulk material handling and the advantages and disadvantages. Want to skip ahead? Click here to download the full technical brief by an industry-leading […]
Understanding the Functional Differences Between Drag Conveyor and En-Masse Drag Conveyor INTRODUCTION Chain conveyors whether known as Drags, Scraper, Paddle, or En-Masse all start out with a continuous chain and fixed flights operating within an enclosed trough. While each individual type functions somewhat differently, their purpose is to accelerate and move a bulk commodity from inlet to discharge at a […]
Fiberglass Manufacturer Reduces Maintenance Cost and Improves Operating Conditions with Drag Chain Conveyors CHALLENGE A global fiberglass insulation manufacturer sought an improved method for handling glass cullet and batch. The screw and belt conveyors used in all of the North American plants to move glass and bulk material were causing excessive maintenance and housekeeping issues and the unplanned […]
Ash Handling Efficiency Improves Operations and Reduces Maintenance for a Coal Powered Utility CHALLENGE A large +/-200 MW generation facility in Illinois had an ongoing maintenance challenge with the coal ash handling systems installed in the plant. Previous expansion left the utility with a range of different conveying equipment and complicated conveyor designs for handling the high temperature […]
Pulp and Paper Mill Cuts Maintenance Costs and Improves Operations with Salt Cake Conveyor Redesign CHALLENGE A Pulp & Paper facility in Northwestern Pennsylvania had extensive issues with conveyor corrosion and subsequent failure on the salt cake handling system due to the corrosive vapor that was generated when the cake was introduced to a black liquor tank. The […]
Utility Uses Farm Waste to Generate Power and Capitalizes on Revenue Streams CHALLENGE CDM was contracted to provide a layout, conveyors, drives, structural steel towers and catwalk trusses for approx. 500 ft. of the conveying distance. Total conveying distance of the product is approximately 600 ft. Conveyors were designed at a rate of 20 TPH of Ash. In […]
En-Masse Twin Chain Retrofit Gets a Brazilian Wood Products Manufacturer Running at Full Capacity CHALLENGE Poor design and sizing of the existing conveyors complicated by incorrect flight selection meant the conveyors could not handle the required loads or the characteristics of the material. The material handling challenges lead to conveyor failure and unplanned downtime. PRODUCTS UTILIZED Drop-Forged Chain […]
A University Reduces Maintenance and Increases Efficiency with a Complete Coal and Ash Handling System CHALLENGE A university in the northeastern part of North Dakota needed to upgrade their central heating system. The winters in the region are long and cold requiring a 7 month heating season. The aging system was costly to operate due to high maintenance […]
Drag Chain Conveying System Supports Refinery Filter Cake Recycle and Reuse CHALLENGE A large oil company sought to expand refinery operations at one of their global locations. The expansion required an effective way to handle the filter cake at a new refinery. The high-volume of filter cake coupled with the system redundancy required by the producer meant numerous […]
