Ore grinding degree selection method based on disseminated particle size characteristics and application
A kind of ore grinding and degree technology, which is applied in the direction of grain processing, etc., can solve the problems of unknown lifting space, low efficiency of grinding fineness, doubtful rationality, etc., and achieve the effect of improving work efficiency, reducing grinding tests, and reducing test costs
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Embodiment 1
[0106] In this embodiment, the grinding system is selected for a certain copper mine ore sample in Tongling, Anhui Province, my country, which specifically includes the following steps:
[0107] Step 1: Slice the blocky ore sample, grind and polish it into a smooth slice, and count the chalcopyrite embedded particle size distribution by surface measurement, and obtain the particle size composition table shown in Table 3.
[0108] The particle size composition table of table 3 chalcopyrite
[0109]
[0110] Step 2: Divide the results in Table 3 into particle size distribution intervals, as shown in Table 4.
[0111] Table 4 Particle size distribution interval division table
[0112] Grain type very coarse Coarse grain medium grain fine grain particle Granularity interval / mm >0.833 0.833～0.300 0.300～0.074 0.074～0.010 <0.010
Distribution rate / % 7.01 22.47 55.98 12.72 1.82
[0113] Step 3: Judge the uniformity of particle size.
...
Embodiment 2
[0118] In this embodiment, a certain copper ore sample in Yunnan Province of my country is selected for grinding system, which specifically includes the following steps:
[0119] Step 1: Cut the ore block sample into slices, grind and polish it into smooth slices, and count the particle size distribution of chalcopyrite embedding by surface measurement, and obtain the particle size composition table shown in Table 5.
[0120] The particle size composition table of table 5 chalcopyrite
[0121]
[0122] Step 2: Divide the results in Table 5 into particle size distribution intervals, as shown in Table 6.
[0123] Table 6 Particle size distribution interval division table
[0124] Grain type very coarse Coarse grain medium grain fine grain particle Granularity interval / mm >0.833 0.833～0.300 0.300～0.074 0.074～0.010 <0.010
Distribution rate / % 4.39 6.43 28.98 57.48 2.72
[0125] Step 3: Judge the uniformity of particle size.
[0126]...
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