The user selects a suitable centrifuge according to the use occasion, material properties and other factors to achieve the intended purpose. There are three issues that must be considered when selecting a model:
1 Anti-corrosion performance: The materials separated by the centrifuge generally have certain corrosiveness, and the material in contact with the material must meet the corrosion resistance requirements to ensure safe use.
Structural material type (304, 321, 316L, titanium plate), sealing ring, gasket material, surface treatment measures (lining plastic, rubber lining, surface coating), and the material of the filter cloth should be determined at the time of selection. . The manufacturer can be informed of the nature of the material (chemical properties, temperature at the time of separation, etc.) at the time of selection so that the manufacturer can suggest the choice of centrifuge material based on the characteristics of the medium to be separated and indicate in the order to ensure The anti-corrosion requirements of the centrifuge.
2 Explosion-proof performance: If the material (or environment) treated by the centrifuge contains flammable and explosive substances such as organic solvents, the centrifuge should have explosion-proof performance. The explosion-proof performance is determined according to the explosion-proof requirements (grade) of the process. In the explosion-proof occasions previously involved, only the explosion-proof motor was proposed. In the past two years, most of the cases where the treated materials contain organic solvents such as solvents have been proposed. In fact, the centrifuge should achieve real explosion protection, and take various measures in terms of mechanical, electrical control, and accessory configuration, such as: electronic control system: explosion-proof isolation barrier, non-contact energy-consuming braking system, static electricity Grounding, explosion-proof automatic control.
Mechanical system: explosion-proof motor, explosion-proof lighting, anti-collision measures, anti-static transmission belt.
Explosion-proof accessories: nitrogen protection device, nitrogen online detection, on-site explosion-proof control button.
Therefore, in the case of explosion-proof requirements, the user should specify the separated medium, explosion-proof requirements and grades when ordering, configure the corresponding equipment and take appropriate measures to meet the explosion-proof requirements.
3 separation performance
Separation performance is a basic function of Zui, including separation effect, washing effect, processing capacity, automation degree and so on. At the beginning of the order, because of the difference in material properties, including the viscosity, particle size, density, solid-liquid ratio of the slurry, etc., it is difficult to accurately determine the final separation effect of the Zui, generally using the separation factor of the centrifuge. Measure the separation effect of the centrifuge.
The separation factor is related to the rotational speed of the drum and the diameter of the drum, and is squared with the angular velocity of the drum.
Ft=ωr2/g
Where: Ft is the separation factor ω is the drum angular velocity r/sr is the drum diameter mmg is the gravity acceleration. The washing here refers to the washing of the filter cake. For some materials, the filter cake needs to be washed by the washing liquid. Some even have to wash several times to meet the requirements, which requires the configuration of the washing tube. The washing effect, washing time and washing tube diameter, arrangement position, and structural form have a great influence.
The processing capacity of the centrifuge is related to the physical and chemical properties of the material and the separation requirements. It is generally estimated by the number of cycles per hour and the weight of the filter cake in a single run.
Laser Distance Meter
Laser distance measure is a very convenient
tool for various types of applications in industries, construction and house decoration.
Laser distance meter is a very useful device which gives accurate measurement
of distance, area and volume especially in large areas such as rooms,
apartments, buildings, real estates, factories, warehouses, infrastructures, gardens,
roads, and many other applications requiring accurate results for distance ,
area and volume measurement.
Trade your heavy tape measure for laser
rangefinder, which let you simply take measurements with one hand. No matter
your job, the laser rangefinder will help you measure much farther, with
greater accuracy and in more situations, saving you money and time.
Specification:
|
Product
Model:
|
JX40
|
|
Accuracy:
|
±1.5mm (0.06
inch)
|
|
Measuring
Unit:
|
metre/inch/feet
|
|
Measuring
Range:
|
0.03~40m
(0.01 to 131 ft)
|
|
Measuring
Time:
|
0.1~4
seconds
|
|
Laser Class:
|
Class II
|
|
Laser Type:
|
635nm,
<1mW
|
|
Waterproof
& Dustproof :
|
IP54
|
|
Auto Laser
Off:
|
60 seconds
|
|
Automatic
Power-off:
|
480
seconds(8 minutes)
|
|
Lighting:
|
white LED
|
|
Datum
Option:
|
Can choose
Front edge or end piece edge as datum
|
|
Battery
Status:
|
Y
|
|
Signal
Strength Display:
|
Y
|
|
LCD display:
|
2 inch large
screen
|
|
Display
illumination and multi-line display:
|
Max
2 displays
|
|
Data Memory:
|
Y (allow 20
values)
|
|
Backlight
display:
|
Y
|
|
Continuous
Measurement:
|
Y
|
|
Min/max
Measurement:
|
Y
|
|
Addition/Subtraction(Distance/Area/Volume):
|
Y
|
|
Area/Volume/Pythagoras
Measurement:
|
Y
|
|
Battery
Type:
|
AAA alkaline
battery(2*1.5v )
|
|
Weight:
|
about
80g
|
|
Dimensions(L*W*H):
|
4*2*11.5cm
|
|
Auto
correction and error report technology:
|
Y
|
|
Operating
Temperature:
|
0-40 ℃(32-104 ℉ )
|
|
Storage
Temperature:
|
-20~60 ℃
(-4~140 ℉)
|
Laser Distance Meter,Laser Distance Measure,Laser Rangefinder,Laser Distance Gauge
Chengdu JRT Meter Technology Co., Ltd , https://www.cdlaserdistancesensor.com