I. Product Introduction
Cast stone is a non-metallic wear and corrosion-resistant material made by processing natural rocks such as diorite and basalt, or industrial waste slag, with additives like amphibole, dolomite, and fluorite, and crystallizers such as chromite and magnesite, through processes like melting, casting, crystallization, and annealing. Its products include plates, bricks, pipes, and various non-standard materials, which are collectively referred to as cast stone products.
The casting stone molding process includes three types: melt casting, sintering, and hot direct casting. Currently, casting stone products are widely used in construction materials, chemicals, metallurgy, mining, and other industrial sectors. Casting stone is an ideal substitute for steel, iron, lead, rubber, wood, and other materials in many equipment parts, offering high wear resistance and acid-base corrosion resistance that general metals cannot achieve. It also extends the service life of equipment, reduces maintenance time, improves production efficiency, and lowers product costs. Casting stone has been used in anti-corrosion engineering for decades, with a history of several decades. It features a dense structure, low water absorption rate, high compressive strength, and good wear resistance. It has excellent corrosion resistance against almost all inorganic acids, organic acids, alkalis, salts, water, and organic solvents, except for hot phosphoric acid above 30℃ and alkali solutions. Casting stone is a brittle material with high hardness, but its drawback is its high brittleness and difficulty in withstanding impacts from heavy objects.

The cast stone products have a low SiO2 content, but due to the high-temperature melting process, a protective layer forms upon crystallization, reducing chemical corrosion of the medium to nearly zero. This is the primary reason for the cast stone's high resistance to acid.
Cast stone slabs are divided into three main categories: standard, standard irregular, and special irregular shapes. Standard slabs include rectangular, trapezoidal, hexagonal, fan-shaped, and circular plates; standard irregular slabs consist of arched plates, chute lining plates, slag channel straight groove lining plates, etc.; special irregular slabs feature double-curved panels, cone-shaped panels, sieve strip cast stone plates, as well as slag channel bends, variable diameter, junction, Y-split, and T-split plates. A wide range of equipment linings with cast stone slabs are all included in the products listed above.
II. Application Scope
1. Power Generation Industry: Coal chutes, coal bins, coal storage silos, dry coal grids, dumpers, slag recovery machines, water treatment, etc.
2. Chemical Industry: Corrosion-resistant flooring, pump foundations, etc.
3. Coal Industry: Wear-resistant linings for coal storage, gangue storage, medium barrels, scraper conveyors, bucket elevators, chute, and under-screen hoppers.
4. Iron and Steel Industry: Blast furnace mixing silos, sintering silos, feeders, pelletizing machines, etc.