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The speed of the spiral in the spiral classifier of the beneficiation equipment should meet the amount of coarse sand transported by the sedimentation, which is beneficial to the classification process of the settlement zone. When dealing with heavy materials with faster sedimentation and requiring a thicker overflow, the rotational speed can be appropriately increased, but the rotational speed is too large, and the coarse sand is easily stirred and returned to the settling zone, so that the classification process is destroyed. For spiral classifiers used in two-stage grinding or fine grinding cycles, the spiral speed should be slowed down as much as possible.
In summary, in spiral classifiers, lower speeds are generally used, especially for large spiral classifiers. The screw diameter is generally 0.3 m is 25r / min or more meters in diameter generally 6r / min or less, 1 meter or more in diameter, the standard rotational speed is generally 2-8r / min.
What is the effect of slurry concentration on the classification effect in the spiral classifier ? Why can't the concentration be too small ?
If the slurry concentration is too small, the viscosity of the slurry will also decrease. Therefore, the sedimentation speed of the ore particles is also accelerated, and the obtained overflow product has a finer particle size. On the contrary, the overflow product granularity is coarser.
When the concentration of the slurry is reduced to a certain extent, if the concentration continues to decrease, the size of the overflow product will be coarsened. Because, when the concentration is much lower, the volume of the slurry ( or the amount of slurry ) is also large, so that the slurry flow rate ( upward flow rate and horizontal flow rate ) in the classifier is also increased, so the coarser ore is also washed in. Go to the overflow product. Therefore, the concentration of the slurry must be reasonably controlled as required.
Henan Bochuang Machinery Equipment Manufacturing Co., Ltd. specializes in the production of ore dressing equipment: spiral classifier, ball mill , crusher, flotation machine, magnetic separator, dryer, rotary kiln, flotation machine , concentrator, vacuum filter, etc. device.
For more information, please visit the official website of the company: http://
Sensor Tri-proof Light
There are two types of sensors for Tri-proof Light; one is infrared induction, and the other
is microwave induction.
Both types of sensors can control the
following values through the remote control shown in the picture below:
1. Can set the light value. If the value of
the ambient light meets the light value you set, it will not turn on even if
there is a moving signal. When the ambient light does not meet the set value,
the light will turn on.
2. The waiting time can be set. That is,
how long the light stays low after the person leaves the sensing area.
3. Set the delay time, that is, how long
the light stays in the full-on state after the person leaves the sensing area.
4. Set the preset brightness: you can set
the full brightness and low brightness.
5. Set the detection range.
6. Remote control distance: You can set the
distance range of the remote control sensor.
The function:
1.Switch function (stand-by period is set to "0s")
2.Two-stage dimming function (stand-by period is set to "+∞")
3.Three-stage dimming function (stand-by period is set to "0s/30s/10min/ +∞")
In addition, the LED
Tri-proof Light can be waterproof, dustproof and anti-corrosion.
Therefore, the Sensor Tri-Proof Light is
especially suitable for parking lots.