I. Product Introduction
Cast stone is a non-metallic wear and corrosion-resistant material made by processing natural rocks like diorite, basalt, etc., or industrial waste slag, with additives such as amphibole, dolomite, fluorite, etc., and crystallizing agents like chromite, magnesite, etc., through processes like melting, casting, crystallization, and annealing. Its products include plates, bricks, pipes, and various shaped materials. These materials of various specifications, such as plates, pipes, and non-standard objects, are collectively referred to as cast stone products.
The casting stone process includes three types: melt casting, sintering, and hot direct casting. Currently, casting stone products are widely used in industries such as construction materials, chemicals, metallurgy, and mining. Casting stone is an ideal substitute for steel, iron, lead, rubber, wood, and other materials in many equipment parts, offering superior wear resistance and acid-base corrosion resistance compared to general metals. It also extends equipment lifespan, reduces maintenance time, improves production efficiency, and lowers product costs. Casting stone has been used in anti-corrosion projects for decades, known for its dense structure, low water absorption rate, high compressive strength, and good wear resistance. It exhibits excellent corrosion resistance to 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 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 near zero. This is the primary reason for the cast stone's high resistance to acid.
Cast stone plates are divided into three main categories: common, common-odd, and special-odd shapes. Common shapes include rectangular plates, trapezoidal plates, hexagonal plates, fan-shaped plates, and circular plates; common-odd shapes include arched plates, trough lining plates, slag groove straight groove lining plates, etc.; special-odd shapes include double-curved panel, conical panel, sieve bar cast stone plates, as well as slag groove curved groove, varying diameter, confluence, two-way, and three-way junction plates. A wide range of equipment linings with cast stone plates are included in the products of the aforementioned categories.
II. Application Scope
1. Power Generation Industry: Coal unloading trench, coal hopper, coal storage, dry coal grid, dump car unloader, slag removal machine, water treatment, etc.
2. Chemical Industry: Corrosion-resistant flooring, pump foundations, etc.
3. Coal Industry: Wear-resistant linings for coal bins, gangue bins, medium barrels, scraper conveyors, bucket elevators, chutes, and screen-bottom hoppers, etc.
4. Iron and Steel Industry: Blast furnace blending silos, sintering material silos, feeders, balling machines, etc.