Because the chemical composition of Penglai basalt is very close to that of cast stone, basalt products with excellent performance and various physical and chemical properties reaching international advanced levels can be produced without adding any auxiliary materials. A single raw material not only simplifies the production process, but also ensures the quality of magma. In ingredient production, although the ratio of main and auxiliary materials has been strictly measured, due to the different particle sizes of the main and auxiliary materials, the large difference in blanking speed during the blanking process causes uneven content of the auxiliary materials in the molten magma, thus causing The chemical composition of magma is unstable. The chemical composition of a single basalt raw material is relatively stable, which fundamentally ensures the quality of magma.

Its products include plates, bricks, pipes and various special-shaped materials. These various specifications of plates, pipes and special-shaped objects are collectively called cast stone products.

There are three types of molding processes for cast stone: melt casting, sintering, and hot direct firing. At present, cast stone products have been widely used in industrial sectors such as building materials, chemicals, metallurgy, and mining. In some parts of many equipment, cast stone is an ideal substitute material for steel, iron, lead, rubber, wood, etc. It has high wear resistance, acid and alkali corrosion resistance that ordinary metals cannot achieve, and has the ability to extend the use of equipment. cycle, reduce maintenance hours, improve production efficiency, reduce product costs and other advantages. Cast stone has been used in anti-corrosion projects for decades and has a history of several decades. It has the characteristics of compact structure, low water absorption, high compressive strength and good wear resistance. It has good corrosion resistance against almost all inorganic acids, organic acids, alkalis, salts, water and organic solvents. Cast stone is a brittle material with high hardness. Its disadvantage is that it is brittle and cannot easily bear heavy loads. The impact of objects.

Experimental comparison chart of the wear resistance of cast stone products and several other wear-resistant products:

There are three categories of cast stone slabs: common shapes, common special shapes, and special shapes. Common-shaped plates include rectangular plates, trapezoidal plates, hexagonal plates, fan-shaped plates, circular plates, etc.; common special-shaped plates include curved plates, chute panels, ash ditch straight groove panels, etc.; special-shaped plates include: hyperbolic Panels, cone panels, screen grate cast stone slabs and ash ditch curved grooves, diameter reduction, converging mouth, two-way mouth, three-way mouth plates, etc. A wide range of equipment lining cast stone slabs are included in the above categories of products.

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Three: Scope of use
         1. Power generation industry: coal unloading ditch, coal hopper, coal storage bunker, dry coal grate, dumper, slag scooper, water treatment, etc.
         2. Chemical industry: anti-corrosion floors, pump foundations, etc.
         3. Coal industry: wear-resistant lining plates in coal bunkers, gangue bunkers, media barrels, scrapers, bucket elevators, chutes, under-sieve hoppers, etc.
         4. Steel industry: blast furnace mixing silo, sintering silo, feeder, ball making machine, etc.

Four: Standard board specifications