A kind of method for high-efficiency activation of pellet iron concentrate by high-pressure roller mill
A technology of high-pressure roller milling and iron concentrate, which is applied in the direction of grain processing, etc., can solve the problems of large manpower and material resources consumption, large test volume, poor extension, etc., and achieve the advantages of reduced consumption, high specific surface area, strong adaptability and extension Effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0029] For specularite A, use a laser particle size analyzer to obtain its average particle size D 0 It is 55 μm, and the specific surface area S is measured by Blaine's method 0 7.52×10 4 m 2 / t (see Table 1), through the high-pressure roller mill test under different roller mill pressure P conditions, the corresponding relationship between power consumption Qp and P per ton of ore is obtained, and the specific surface area increment (S p -S 0 ) and the corresponding relationship of P (see Table 2); plots vs. P and performs a quadratic fit (see figure 1 ),get The Pmin when the minimum value is obtained is 2.7MPa, so the suitable roller grinding pressure is: Using this roller milling pressure to carry out high-pressure roller milling on specularite A can obtain the best roller milling effect. Compared with the pellets without roller milling, the specularite A is processed under this suitable roller milling pressure condition. The ratio is reduced by 0.8%-1%, the pe...
Embodiment 2
[0037] For hematite A, use a laser particle size analyzer to obtain its average particle size D 0 It is 46μm, and the specific surface area S is measured by the Blaine method 0 13.34×10 4 m 2 / t (see Table 1), through the high-pressure roller mill test under different roller mill pressure P conditions, the corresponding relationship between power consumption Qp and P per ton of ore is obtained, and the specific surface area increment (S p -S 0 ) and the corresponding relationship of P; by making and a graph of P and a quadratic fit to obtain The Pmin when the minimum value is obtained is 2.3MPa, so the suitable roller grinding pressure is: Compared with the pellets without roller milling, if the hematite A is processed under this suitable roller milling pressure condition, the proportion of bentonite will decrease by 0.6% to 1.0%, and the pelletizing rate will increase by 12% to 15%. The temperature is reduced by 70-100°C, the roasting temperature is reduced by 40-5...
Embodiment 3
[0039] For magnetite A, use a laser particle size analyzer to detect its average particle size D 0 It is 42μm, and the specific surface area S is measured by the Blaine method 0 15.61×10 4 m 2 / t (see Table 1), through the high-pressure roller mill test under different roller mill pressure P conditions, the corresponding relationship between power consumption Qp and P per ton of ore is obtained, and the specific surface area increment (S p -S 0 ) and the corresponding relationship of P; by making and a graph of P and a quadratic fit to obtain The Pmin when the minimum value is obtained is 2.1MPa, so the suitable roller grinding pressure is: Compared with the pellets without roller milling, if the magnetite A is processed under the suitable roller milling pressure conditions, the proportion of bentonite will decrease by 0.5% to 0.6%, and the pelletizing rate will increase by 5% to 8%. The temperature is reduced by 50-60°C, the roasting temperature is reduced by 30-40...
PUM
| Property | Measurement | Unit |
|---|---|---|
| particle size | aaaaa | aaaaa |
| particle size | aaaaa | aaaaa |
| particle size | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More