Calculation of cycle load, classification efficiency and grinding technology efficiency in the grinding classification process during process inspection According to the definition of classification efficiency: The other C is the cyclic load, then
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1. Calculated cyclic load with inspection graded grinding process :
γ 5 β 4 β 3
C = —— = ————
γ 1 β 3 - β 5
The classification efficiency is generally calculated by the mass efficiency formula, and the mass efficiency formula can be derived from the fine particle size efficiency E and the coarse particle size efficiency E. 
γ 4 β 4 β 4 (β 3 - β 5 )
E fine = ——— = ————————
β 3 β 3 (β 4 - β 5 )
E thick corresponding to E fine:
(1 - β 4 )[(1 - β 3 ) - (1 - β 5 ) ]
E rough = ——————————————————
(1 - β 3 )[(1 - β 4 ) - (1 - β 5 ) ]
∴E quality =E fine- E thick
(β 3 - β 5 )(β 4 - β 5 )
Or ∴ E quality = ————————————
β 3 (β 4 - β 5 )((1 - β 3 ))
Γn and βn in the above formulas represent the yield of each product and the content of each product which is smaller than a specified particle size, respectively. [next]
Grinding technology efficiency calculation:
100 - γ 3 100 - γ
E technology = (--------) ×100%
100 - γ 2 100 - γ 1
In the formula:
γ——% by weight of the product below the upper limit of the acceptable particle size in the mill discharge
γ 1 - the weight of the product in the mill feed less than the upper limit of the acceptable particle size
γ 2 ——% by weight of milled ore in the mill
γ 3 ——% by weight of overgrind in mill discharge
2. Calculation of the calculation cycle load of the second stage grinding process :
β 3 - β 1
C = —————
β 5 - β 4
Calculation of classification efficiency:
The other E is the classification efficiency, then
γ 3 β 3 β 3  β 3 (β 5 - β 4 )
E fine = —————— = ———— = ————————
γ 1 β 1 + γ 5 β 5 β 1 + Cβ 5 β 3 β 5 - β 1 β 4
(1 - β 3 )[(1 - β 5 ) - (1 - β 4 )]
E rough = ——————————————————————
(1 - β 3 )(1 - β 5 ) - (1 - β 1 )(1 - β 4 )
Mass efficiency: E quality = E fine - E thick
(1) according to the loading material can be divided into: Propane tank truck, propylene tank truck , dimethyl ether tank truck, ammonia tank truck , methylamine tank truck, acetaldehyde tank truck, etc.
(2) according to the process and the role of loading capacity can be divided into: LPG vehicles, liquefied gas transport semi-trailer, liquefied gas storage tanks. the liquefied gas storage tanks can be designed for two kinds there`s underground storage tanks and ground storage tanks.
CLW GROUP TRUCK Liquefied gas tanker is a pressure vessel, "Pressure Vessel Safety Technology Supervision" promulgated by the State Bureau of Technical Supervision, "Liquefied Gas Tanker Safety Supervision" and GB150 "steel pressure vessel", the use of lightweight design, manufacture of special vehicles. With a reasonable structure, safe, reliable, easy operation, easy maintenance.
Liquefied gas tanker surface corrosion coatings are used sand blasting, painting, purging and other advanced technology.
A liquefied gas tanker truck belonging to a type of gas that a single shipment of a professional body material is strictly prohibited mixed shipment.
Take rigorous scientific construction advanced technology, ensuring a minimum of shrinkage, the highest dimensional stability at low temperatures.
Strict quality inspection: A, Class B 100% weld-ray detection, II level qualified
C, D welds 100% magnetic particle inspection, qualified level
2. There should be tankers with guard personnel, and prohibit other persons aboard. The driver and guard personnel can not smoke in the truck. Tankers allowed towing trailers. Should hang with "danger" signs.
3. The driver can not be launched when loading and unloading vehicles.
4. Interior temperature reaches 40 degrees, the sun should be taken outside the tank or water-cooled cooling hunting and other security facilities.
5. If you need to stop on the way when the tank should be well-ventilated, no fire and buildings within 10 meters of place to prevent exposure. Drivers and escort personnel shall at the same time away from the vehicle. No parking in institutions, factories, warehouses and staff dense areas.
6. LPG leak occurred when a large number of tankers should stanch the emergency, and shall not start the vehicle. And immediately contact the relevant units, departments, cut off all sources of ignition, take timely fire extinguishing measures.