SCMD TRANSIT MIXER FOR PRODUCTION & TRANSPORTATION OF CONCRETE

摘要

A stationary concrete mixing drum - SCMD transit mixer for production & transportation of the concrete is provided. The mixer has a stationary concrete mixing drum with a top open (3) and two different sets of spirals mounted on a single shaft. The larger diameter spirals are called the discharging spirals & the smaller diameter spirals are called the mixing spirals. The shaft is driven by a heavy duty planetary reduction gearbox. Further, the gearbox is driven by a mechanical drive powered by a dedicated slave engine. The shaft is provided with a unidirectional rotation. However, a bidirectional movement of the concrete is achieved by means of the spirals. Thus mixing and discharging through a controlled gate is accomplished. The mixer is provided with a set of electronic load cells (4) to actually weigh all the ingredients. The mixer is typically mounted on a normal commercial truck. The mixer is alternatively operated by a truck PTO. The mixer can be alternatively mounted on a trolley/ trailer or towed by a tractor. The cost can be reduced by 50-55%.