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Home > News > Dry calcium carbide slag preparation grinding process with the grinding equipment obtained?

Dry calcium carbide slag preparation grinding process with the grinding equipment obtained?

fxy/ Release time : 2023-05-29

Dry calcium carbide slag contains a large amount of calcium hydroxide, which can be used as a substitute for slaked lime and has been widely used in the fields of construction, chemical industry, metallurgy and agriculture. The treatment methods of calcium carbide slag are: reclamation and ditch filling, stacking according to regulations, natural settlement and then sold; the applications of calcium carbide waste are mainly: replacement of limestone for cement production, raw limestone as raw material for calcium carbide, production of chemical products, production of building materials, and use of environmental protection. According to incomplete statistics, in Inner Mongolia, Wuhai, Ordos, etc., the ex-factory price of calcium carbide per ton is 2650 yuan; Gansu area ex-factory price per ton is 2850; Shaanxi area ex-factory price per ton is 2710 yuan; Ningxia Shizuishan calcium carbide mainstream ex-factory price per ton is 2800 yuan.

Does the preparation process and treatment process of calcium carbide need grinding equipment? What is the role of vertical grinding coal powder in calcium carbide industry? There are two kinds of equipment for calcium carbide slag coal powder vertical roller mill production line, 200 mesh European version mill and 200 mesh coal powder vertical roller mill.

Calcium carbide preparation process and processing process:

1, calcium carbide preparation process: lump ash (3-12cm) + pulverized coal (200 mesh, D80) / lump coal (5-7cm) / natural gas / lang char (5-15cm) / coke (2-4cm) through the calcium carbide furnace processing (conductive agent electrode paste crushed to 80-100mm) - finished products;

2, calcium calcium carbide slag production process: calcium carbide slag - baking - crushing - wind - into materials (many companies use calcium carbide slag to make CaO, because calcium carbide slag particle size is very small, dry and crushed can be, no need to grind);

3, calcium hydroxide made from calcium carbide slag: calcium carbide slag - desiccant - add water - make calcium hydroxide (calcium in calcium carbide slag - desiccant is generally 70~85%, desiccant can increase calcium by about 4%, while calcium in our calcium carbide slag - desiccant is on the high side, 80~90% of calcium components are not suitable for making calcium);

In the process of calcium carbide production, it is necessary to use raw material processing equipment such as calcium slag mill, to MTW European version of the mill for 200 mesh coal powder line, can achieve D80 continuous rolling, the performance of the coal mill price is relatively high. LM pulverized coal vertical mill is suitable for large enterprises with a large demand for coal powder, can also achieve the production capacity of 200 mesh D85 or more. And the three-step calcium hydroxide production line from calcium carbide slag is characterized by fast digestion, high heat utilization and environmental friendliness.

Calcium carbide preparation process with calcium carbide slag grinding mill selection suggestions

MTW European version grinding mill

MTW European version grinding mill

(A) MTW European version mill with 80~400 mesh

Feed size]: 30-50mm

Output fineness]: 80-400 mesh

Capacity】: 1-25t/h

Application】: Construction, chemical, metallurgy, paint, paper, rubber, pharmaceutical, food and other industries, humidity within 6%, Mohs hardness below 7 non-combustible, non-combustible, non-combustible, non-explosive materials.

Applicable materials】: coal, talc, dolomite, kaolin, potassium feldspar, barite, fluorite, water slag, petroleum coke, gray calcium powder, wollastonite, gypsum, limestone, feldspar, phosphate ore, marble, quartz sand, bentonite, graphite, manganese ore and other non-metallic mineral materials of Mohs 7 or lower.

Product Introduction】: MTW European version mill is a kind of fine mill, this kind of mill is a technical innovation based on R type pendulum mill, compared with R type pendulum mill, its performance has been greatly improved, it is a new generation of Raymond equipment with high efficiency and low energy consumption. Calcium carbide slag fine powder mill is mainly used to crush limestone, calcite, marble, talc, gypsum, barite, fluorite, zeolite, manganese ore, titanium ore, phosphate ore, bentonite, starch, kaolin and other non-flammable and explosive materials with Mohs 7 hardness and 6% water content. The fineness of particles can be adjusted in the range of 0.18~0.015 (80~400). It is the upgraded version of R-shaped pendulum mill.

LM calcium carbide slag vertical mill

LM calcium carbide slag vertical mill

(II) 100~325 mesh LM calcium carbide slag vertical mill

Raw material moisture into the mill】:≤15%

Single machine output】:3~320t/h

Powder fineness】:200 mesh D80 all through

Introduction】:LM series coal pulverizer vertical roller mill is a new type of pulverizing equipment that integrates drying, grinding, dividing and transporting with high efficiency and low energy consumption, which was carefully developed by Guilin Hongcheng Company after more than 20 years of continuous study and introduction. Small, simple operation and maintenance, low operating cost, not easy to wear material consumption. It is widely used in electric power, metallurgy, cement, chemical industry, non-metallic mining and other fields. It is mainly used for grinding cement raw material, clinker, lime powder for power plant desulfurization, slag micro powder, manganese ore, gypsum, coal, barite, calcite and other materials.

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