MJW Completes Ball Mill Upgrade for United States Gypsum // February 2018

MJW Consolidated has completed the installation of a new ball mill and associated equipment that will enable United States Gypsum’s Jacksonville, FL, plant to nearly double the capacity of one of its sheet rock lines.

A subsidiary of USG Corporation, United States Gypsum chose MJW to perform the work that included extensive pre-work to remove existing equipment and prepare the existing production area; unpacking and placement of new equipment; and assembly and connection of the new equipment. The major component of the upgrade was a 60,000-pound ball mill that contains 37,000 pounds of steel balls that pulverize raw gypsum to prepare it for the production line.

The scope of work included unloading the equipment components as they arrived on site, removing a wall from the building to stage the components, performing extensive hand rigging and construction of temporary supports to move the pieces into place, installation of cooling system piping, and completing the assembly and tie in of new bag unloading houses, twin screws and ball mill.

The work took place during a three-week outage on the line and required close coordination with the plant operations team prior to the start of the project. MJW crews self-performed all of the elements of the work to stay on schedule and finish the job safety.


MJW Installs Recycling Homogenizer for Continental Gypsum Plant // January 2018

Continental Building Products has chosen MJW Consolidated to install a new homogenizer system to increase efficiency at its Palatka, FL, plant by capturing gypsum waste and returning it to the production stream.

The project, which began November 2017 and is scheduled for completion at the end of March 2018, includes installation of a 26,000-pound homogenizer as well as fabrication and installation of two large piping systems and structural steel supports.

The new system will enable Continental to recycle waste from the wallboard manufacturing process by processing it through the homogenizer to create a consistent material that can flow back into the production line. MJW is responsible for setting in place and welding together the two components of the homogenizer, providing and installing the supports and piping, and tying in the system to the production line.

MJW is self-performing all aspects of the project. Two large piping skids are being fabricated at MJW’s onsite shop at Palatka, where the company provides a wide range of ongoing construction and maintenance services for the Continental plant. In addition, the MJW fabrication shop at Lakeland, FL, is constructing the support structures for the homogenizer.

The work has been closely coordinated with the operations team at the plant, which has continued operating throughout the course of the construction. The final tie in will take place during a two-day outage.

When fully operational, the new system will enable Continental to increase the amount of wallboard it can produce from each shipment of raw gypsum supplied to the plant.

 Continental Homogenizer