I. Product Introduction
Cast stone is a non-metallic wear and corrosion-resistant material made by processing natural rocks such as basalt and gabbro, or industrial waste slag, with additives like amphibole, dolomite, and fluorite, and crystalline agents such as chromite and magnetite, through processes like melting, casting, crystallization, and annealing. Its products include plates, bricks, pipes, and various shaped materials, which are collectively referred to as cast stone products.
Cast stone forming processes include molten casting, sintering, and hot direct casting. Cast stone products are now widely used in industries such as building materials, chemicals, metallurgy, and mining. Cast stone is an ideal substitute for steel, iron, lead, rubber, and wood in many equipment parts, offering high wear and corrosion resistance that general metals cannot achieve. It also extends equipment lifespan, reduces maintenance time, improves production efficiency, and lowers product costs. Cast stone has been used in anti-corrosion engineering for decades, characterized by its dense structure, low water absorption rate, high compressive strength, and good wear resistance. It has excellent resistance to most inorganic acids, organic acids, alkalis, salts, water, and organic solvents, except for hot phosphoric acid above 30℃ and alkali solutions. Cast stone is brittle, with high hardness, but its main drawback is its high brittleness, making it unsuitable for承受 heavy impacts.

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 high acid resistance of cast stone.
Cast stone slabs are categorized into three types: standard, standard irregular, and special irregular. Standard slabs include rectangular, trapezoidal, hexagonal, fan-shaped, and circular boards; standard irregular slabs consist of arched, trough, and slag channel slabs; while special irregular slabs feature double-curved, conical, sieve grating cast stone boards, as well as curved, variable diameter, junction, and T-shaped board slabs for slag channels. All types of equipment linings with cast stone slabs are included in the products of the aforementioned categories.
Section II: Application Scope
1. Power Generation Industry: Coal unloading channels, coal bins, coal storage silos, dry coal grids, dumpers, slag extractors, water treatment, etc.
2. Chemical Industry: Corrosion-resistant flooring, pump foundations, etc.
3. Coal Industry: Wear-resistant linings for coal bins, gangue bins, medium buckets, scraper conveyors, bucket elevators, chutes, and screen underfalls, etc.
4. Iron and Steel Industry: Blast furnace mixing bins, sintering bins, feeders, balling machines, etc.