Magnesite Production Line
EPC Solution for Magnesite Calcination
Annual capacity: 10,000 tons, 20,000 tons, 50,000 tons, 100,000 tons, 150,000 tons, 200,000 tons.
Equipment: magnesite rotary kiln, preheater, crusher, conveyor, screen, bag filter, etc
Magnesite properties
Magnesite is a common type of magnesium ores, its chemical formula is MgC03, and the theoretical magnesium content is 47.8%. Magnesite calcination is heating magnesite to high temperature, producing chemical reactions, and transforming magnesite into magnesium oxide.
The formation of magnesite is closely related to the combination of magnesium and carbonate ions in the crust. In a specific geological environment, these elements after a long time of precipitation and crystallization, finally formed magnesite. The main component of magnesite is magnesium carbonate, which has the characteristics of high hardness, strong wear resistance, and good chemical stability. In addition, magnesite also has good heat insulation and insulation properties, so it is favored in the industrial field.
Is it worth investing in magnesite production?
In recent years, magnesite has had a wide range of demands. The main applicable fields include iron and steel metallurgy, chemical industry, building materials, etc. In particular, the demand for magnesite in the iron and steel metallurgy industry accounts for a large proportion, and it is expected that the demand will maintain stable growth in the next few years.
At the same time, with the enhancement of environmental awareness and technological progress, the application of magnesite in the field of environmental protection materials and new energy will gradually increase, bringing new demand growth points for the magnesite market.
What can we do?
AGICO is a leading supplier of rotary kilns from China, we specialize in custom-designed rotary kilns and related solutions, such as cement plants, activated carbon plants, lime calcination plants, anode active material manufacturing plants, etc. We offer integrated solutions for magnesite production, including equipment, processing, technical support, debugging, maintenance, and other services.
1. Raw Material Test
2. Program Design
3. Device Manufacturing
4. installation
5. debugging
6. Technical Training
7. delivery on time
8. after-sales service
How is magnesite made?
How is magnesite made? A magnesite production line is the best way to process magnesite, which can be divided into four sections: crushing, floatation, calcination, and screening.
- Crushing: the raw materials magnesite ore is crushed into sizes required by the next section.
- Floatation: crushed magnesite ore will be floated, and the impurities and unwanted components will be separated from the crushed ore by flotation to improve the purity of magnesite ore.
- Calcination: after floatation, the magnesite ore will be calcined by a rotary kiln or shaft kiln.
- Finished-product treatment: the calcined product is treated to remove impurities and unreacted substances. Physical separation and chemical treatment are generally used in this step.
magnesite calcination process
The calcination of magnesite is a core step in the whole magnesite production line, there are two types of the magnesite calcination process, rotary kiln calcination process and shaft kiln calcination process.
Rotary kiln
The purpose of calcination is to decompose magnesium carbonate in magnesite to produce carbon dioxide and form magnesium oxide. The calcination process requires the control of temperature, time, and atmosphere. The method of continuous calcination is usually adopted, and the ore is treated in sections such as preheating zone, calcination zone, and cooling zone. The preheating zone heats the ore to a certain temperature to remove volatile substances from the ore. In the calcined zone, the ore decomposes at high temperatures, releasing carbon dioxide and forming magnesium oxide. The cooling zone cools the ore and prepares it for the next step.
Shaft kiln
Magnesite ore is pre treated to remove red veins, soil, etc., crushed into a certain particle size, and lifted to the top of the shaft kiln by a lifting device before being added to the feeding bell. It is added to the kiln in a timely and quantitative manner according to the process requirements; A certain particle size of white coal, coke, or non stick coal is lifted from the feeding device to the top of the gasifier and added to the furnace through a feeding bell. Air and steam are introduced into the bottom of the furnace to produce gas, which enters the lower burner of the shaft kiln through the dust removal device and heat exchanger. After being preheated by the blower, the gas is burned together with the air. Control the calcination reaction of magnesite at different temperatures according to process requirements. When the temperature is controlled between 1500~1800 ℃, the burnt material is discharged from the bottom of the kiln and crushed and screened to produce rebuked magnesia sand; When the temperature is controlled between 700~900 ℃, the burnt material is discharged from the bottom of the kiln and crushed and screened to produce light burned magnesium powder.
Consumption quota per ton of rebuked magnesia: 2.0~2.5 tons of magnesite ore; The coal consumption varies depending on the type of fuel used, converted into standard coal consumption, generally ranging from 0.22 to 1.0 tons; Electricity consumption is 30-50kW · h; The consumption quota per ton of lightly burned magnesium powder is 2.2-2.6 tons of magnesite, 0.2-0.8 tons of coal, and 30-50 kW · h of electricity consumption.
Advantages of magnesite calcination kiln
Our calcination kiln will keep uniform and full calcination of raw materials.
Our calcination kiln has no pollution and meets the requirement of environmental protection.
Both rotary kiln and shaft are available. Rotary calcination kiln save 20%-30% energy compared to the shaft kiln.
Easy to operate and high automation degree.
Specification of magnesite rotary kiln
| Size(m) | Basic parameters | Reducer | Rotor | Support (个) | Weight(t) | |||
| Rotate speed(r/min) | Slop （%） | Output(t/h) | Model | Model | Power （KW） | |||
| φ1.6×32m | 0.58-2.85 | 4 | 2 | ZQ75-50 | YCT250-4A | 18.5 | 3 | 46.8 |
| φ1.6/1.9×36m | 0.53-1.59 | 4 | 2.5-3 | ZQ110-7 | YCTZ50-4B | 22 | 3 | 57 |
| φ1.9×39m | 0.53-1.59 | 4 | 3-3.4 | ZQ125-7 | YCT315-4A | 37 | 3 | 71.79 |
| φ2.2×45m | 0.214-1.64 | 3.5 | 4-5 | ZS125-5 | YCT315-4B | 45 | 3 | 142.6 |
| ZQ40-40 | Y112M-4 | 4 | ||||||
| φ2.5×50m | 0.62-1.5 | 3.5 | 5-6 | ZS165-5 | YCT355-4A | 55 | 3 | 180 |
| ZS50-1 | Y160M-6 | 7.5 | ||||||
| φ2.5×55m | 0.62-1.5 | 3.5 | 5-6 | ZS165-5 | YCT355-4A | 55 | 3 | 185 |
| ZS50-1 | Y160M-6 | 7.5 | ||||||
| φ2.8×55m | 0.62-1.5 | 3.5 | 6-7 | ZS165-5 | YCT355-4B | 75 | 3 | 215.6 |
| ZS50-1 | Y160L-6 | 11 | ||||||
| φ3.0×60m | 0.5-1.5 | 3.5 | 7-9 | ZS165-3 | ZSN-280-11B | 125 | 4 | 310.9 |
| ZS50-1 | Y160L-6 | 11 | ||||||
| φ3.2×64m | 0.4-1.5 | 3.5 | 8-10 | ZS130-16 | ZSN-280-11B | 190 | 4 | 337.8 |
| Zl50-1 | Y180L-4 | 22 | ||||||
| φ3.5×70m | 0.4-1.5 | 3.5 | 12-14 | ZSY500-40 | ZSN-315-082 | 280 | 4 | 394.6 |
| Zl50-14 | Y180L-4 | 22 | ||||||
| φ4.0×80m | 0.4-1.5 | 3.5 | 16-20 | ZLY630-35.5 | ZSN-315-12 | 355 | 4 | 564.8 |
| ZSY280-35.5 | Y200L-4 | 30 | ||||||
calcined magnesite powder uses
As an important carbonate raw material, magnesite has shown wide application prospects in many fields, such as the building materials industry, chemical industry, and metallurgical industry, due to its unique physical and chemical properties. With the continuous advancement of technology and the sustained development of the industry, the application fields of magnesite will be further expanded. For example, in the field of new energy, magnesite can be used to produce magnesium ion batteries, providing power support for new energy industries such as electric vehicles. In addition, magnesite also has potential application value in the field of environmental protection, such as for wastewater treatment, soil remediation, etc.
- Building materials industry: Magnesite has a wide range of applications in the construction industry, such as making lightweight partition boards, fireproof boards, flooring, etc. Magnesite products are favored by consumers due to their light weight, high strength, and good sound insulation effect.
- Chemical industry: Magnesite can be used as a chemical raw material for the production of chemical products such as magnesium oxide and magnesium hydroxide. These products have a wide range of applications in industries such as rubber, plastics, and coatings.
- Metallurgical industry: Magnesite can be used as a flux in the metallurgical industry, which helps to reduce the viscosity of slag and improve smelting efficiency.
Successful cases of AGICO
