In order to improve the quality of brick and tile products, the clay crushed by the double roll crusher requires that the amount of particles larger than 3 mm should not exceed 10%. To achieve this effect, you can take the following measures:
(1) Reasonably select the model of the double roll crusher and control the feed diameter. In general, the diameter of the roller of the double-roller crusher should not be less than 9 times the particle size of the clay before crushing, that is, D≥9r, in order to obtain a good crushing effect.
(2) Control the moisture content of the mud. The moisture content of the mud should not be too high, generally should be controlled below 15%, otherwise it will form a mud mass, which will affect the crushing efficiency and the crushing effect.
(3) The feed should be uniform. Do not suddenly feed too much, the mud should preferably fall across the width of the roller to reduce uneven wear of the roller.
The recess maintains a suitable roller gap. The gap between the two rollers should be kept between 3 and 5 mm. When the clearance is too large, it should be repaired or replaced in time, otherwise the crushing effect will be affected.
(5) If necessary, adopt a two-roller process, that is, use two two-roller crushers to carry out coarse crushing and fine crushing, respectively, to fully guarantee the crushing quality.
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