Draining sand for steelworks and its preparing process
A technology of drainage sand and process, which is applied in the field of drainage sand, can solve the problems of high material purity, difficulty in obtaining materials, complicated manufacturing process, high material cost, etc., and achieve the effect of reasonable selection, good high temperature performance and good performance
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Embodiment 1
[0011] Embodiment 1: a kind of steelmaking drainage sand, in 100 kilograms, its weight ratio is:
[0012] Quartz sand 10-50 mesh 91 kg
[0013] White clay 1.5 kg
[0014] Rice husk 2.5kg
[0015] Graphite 3 kg
[0016] Carbon black 2 kg
[0017] Its preparation is to dry mix the components together in a mixer for 3 minutes, add 10kg of water and mix them wet for 8 minutes, place the mixed drainage sand in an oven, and bake it at about 200°C for 3 hours. After baking, it will be the finished product. Drainage sand. It is characterized by good lubricity, fluidity, and high-temperature collapsibility. The material cost of the drainage sand is low, and its production cost is 330-430 yuan / t, which significantly reduces costs and increases efficiency.
Embodiment 2
[0018] Embodiment 2: a kind of steelmaking drainage sand, in 100 kilograms, its weight ratio is:
[0019] Quartz sand 10-50 mesh 92 kg
[0020] White clay 1.7 kg
[0021] Rice husk 2 kg
[0022] Graphite 2.3 kg
[0023] Carbon black 2 kg
[0024] The preparation is to dry mix the components together in a mixer for 3 minutes, add 9kg of water and mix them wet for 10 minutes, place the mixed drainage sand in an oven, and bake at about 250°C for 2 hours. After baking, it will be the finished product. Drainage sand.
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