The mixing and granulating process of refractory materials directly determines the density, thermal‑shock resistance and high‑temperature service life of refractory bricks, continuous‑casting three major components, refractory castables and silicon‑carbide saggers. Conventional equipment suffers from coarse‑fine aggregate segregation, uneven dispersion of additives and poor particle formation. These defects easily lead to excessive pores, cracking and short service life of finished products, becoming a bottleneck for mass production of high‑end refractories.
With more than ten‑year expertise in powder mixing and granulation, Qingchi (Qingdao) has independently developed the integrated inclined intensive mixing‑granulating machine for refractory working conditions featuring multi‑component formulation, large density difference and heavy abrasion. It delivers one‑stop solutions for the whole process of refractory raw material preparation and helps refractory manufacturers achieve quality improvement, cost reduction and efficiency gain.
Adopting an inclined cylinder plus high‑speed counter‑rotating rotor structure together with fixed side scrapers, the equipment builds an omni‑directional dead‑zone‑free 3D turbulent flow field. Coarse aggregates, fine powders, binders and trace additives are simultaneously dispersed and blended. Light‑heavy materials realize zero segregation and zero agglomeration, with trace auxiliaries homogeneously dispersed to deliver industry‑leading mixing uniformity.
Dual rotating speeds of rotor and cylinder can be flexibly adjusted to precisely control material residence time, particle compactness and sphericity as required. Discharged materials feature rational particle gradation and excellent flowability, greatly increasing green body forming density and reducing reject rate from the source. It fits full‑range production of high‑alumina bricks, magnesia‑carbon bricks, mullite bricks and monolithic refractory castables.
Traditional processes require segmented transfer across multiple machines, which occupies large floor space, causes high dust loss and consumes long cycle time. The Qingchi single unit integrates mixing, kneading and granulating in‑one, eliminating intermediate material transfer and greatly cutting workshop footprint.
Compared with conventional equipment, production efficiency rises by over 40 %, and the fully‑enclosed chamber reduces powder fugitive loss with comprehensive energy consumption cut by 15 %. Short batch mixing cycle supports 24‑hour continuous large‑scale production, perfectly matching new‑line construction and old‑production‑line upgrading.
Refractory aggregates are hard and highly abrasive. Core rotor blades and cylinder liners of this machine are made of high‑strength wear‑resistant material for superior scouring resistance and extended service life, which significantly lowers component replacement frequency.
The uniquely‑curved side scraper prevents material buildup on cylinder walls. Quick cleaning is available for formula or color switching to avoid cross‑batch contamination and guarantee consistent performance from batch to batch. Compact overall structure simplifies inspection and routine maintenance and eases operational pressure for enterprises.
Equipped with an integrated intelligent electric control system, it monitors key parameters in real‑time including mixing duration, rotating speed and chamber temperature. Multiple pre‑programmed refractory formulas enable one‑click automatic mixing‑granulating workflow to minimize manual errors and raise production‑line automation level.
Modular body supports customized capacity, covering lab‑scale test models up to ten‑thousand‑ton mass‑production equipment, meeting both small‑batch R&D sampling and large‑volume manufacturing demands of refractory plants.
Qingchi continuously optimizes powder processing technologies in cooperation with refractory manufacturers and universities, gaining deep insights into processing characteristics of magnesia‑based, alumina‑silica, silicon‑carbide and other refractory materials.
We provide customized equipment solutions, on‑site installation & commissioning, process optimization and operator training. Post‑sales services include remote technical support and spare‑parts supply throughout the equipment lifecycle.
Our machines are supplied to refractory factories worldwide, fully validated under heavy‑duty global operating conditions. Numerous long‑term clients place repeat orders, and our quality gains wide recognition across the global refractory industry.
