Raymond Mill fineness production and energy consumption compared

Raymond Mill fineness production and energy consumption compared
Because the device of the finished product and raw materials production and product fineness of physical and chemical properties are closely related, it made clear the conditions of the relevant regulations
Fixed: raw materials for calcium carbonate. Processing fineness 325 ~ 1250 mesh. CXLM-4R Raymond Mill is a fine product (referred to as A solution),
4R3216 Raymond mill ordinary processed into semi-finished 325 ~ 425 mesh for later use CXF-200 × 4-based fine powder separator for secondary sorting,
Sorting machine of total power 78kW, matching capacity and 4R3216. Sorting fineness of 425 to 1250 mesh, producing 20% to 60% (SR
Said B program). Table 4 (all measured data.)
Table 4 Raymond Mill of two compared the measured data processing program
Project processing program 325 Head 600 Head 800 Head 425 Head 1250
A 3500 3000 1600 1000 500
B 2000 1500 1200 650 320
Yield
(Kg / h)
Growth rate (%) 75100335456
A 25 28 50 76 142
B 40.5 51 100 135 255
Specific energy consumption
(KW · h / t)
Saving rate (%) 38.3 45.1 43.7 44.3 50
Raymond Mill the A, B can be obtained compared to the following programs: ① 325 ~ 1250 mesh either powder or fine powder when the production units are substantially
Degree of improvement, the purpose of production of 325,425 CXLM-4R almost double than almost 4R3216, 5R4119 close with; ② saving rate of 40%
50%; ③ A program of investment in equipment than the B program to save nearly half also saves on space, more than 30%; ④ A main advantage of the program
Once finished products, and the inconvenience of the program B is lower after sorting items materials difficult to handle, such as direct sales of low price, such as back to mine
Mongolia re-grinding mill, only a small amount and gradually added, and the product easy to damage and pollution.
4.2 Raymond mill compared with the fluidized bed jet mill
Comparison conditions: ① C program is set to: Raymond mill with ordinary 4R will be processed into 325-mesh talc powder (yield 2t / h), as the original
Material into the QLM630 type jet mill processed into finished projects 1250 (production 1t / h). QLM630 jet mill's installed capacity of 330kW, power consumption rate
90%. Processing 1t1250 present the total power consumption of ultra-fine talc was 40.5 +330 × 90% = 337.5kW · h / t and 1250 A program processing
The total power consumption of talc present 125kW · h / t compared to 2.7 times the latter saving! Visible energy efficient A program to reduce production costs is the most
The main advantage; ② to note is A, C program than grinding mechanism is different because, in both the same size Classifier
Premise, usually the purpose of A program of 1250 than the average particle size d50 of large C programs, strictly speaking, not comparable. Therefore, we set
A program of the 1250 fixed target fineness d50 program is the same with the C standard as a precondition (d50 ≤ 2.5μm). A program that
d97 = 8.8μm (rather than C programs 10μm) is equivalent to 1500 projects.
4.3 with some new type of ultra-fine grinding equipment compared
(1) Raymond Mill and JFM-650 compared to the hurricane from the mill (processing calcite, see Table 5)
Table 5 CXLM-4R and JFM-650 comparison of the data processing calcite
Fineness yield (t / h)
Model
Electromechanical assembly capacity
(KW)
Head 600 Head 800 Head 1250
Host speed
(R / min)
Classifier speed
(R / min)
JFM-650 95 0.7 0.4 0.3 2900 500 ~ 3000
CXLM-4R 96 1.5 1.0 0.5 140 270 ~ 1750
Raymond Mill comparison we can see from Table 5, both mechanical and electrical installed capacity of close to, but the output of the same fineness which has almost doubled. The host
Spindle speed is reduced by 20 times the speed of classifier is also reduced by nearly one-fold, wear low-speed operation of equipment, easy maintenance and easy repair.
(2) ultra-fine grinding mill with the CM51A impact compared (Table 6)
Table 6 CXLM-4R and the CM51A compare the measured data processing calcite
Fineness yield (kg / h)
Model
Electromechanical assembly capacity
(KW)
Head Head 1250 600 325
Spindle speed
(R / min)
Raymond mill feed size (mm)
CM51A 92 800 436 200 * 2400 ≤ 10
CXLM-4R 96 35001500 500 * 140 ≤ 25
* CM51A device output fineness "600 project" means a pass rate of 99.8% -325 mesh, and the "1250 Project" refers to the standard d90 = 10μm,
The CXLM-4R's 1250 target is d50 ≤ 2.5μm, d97 ≤ 9μm standards. Which is less than the actual fineness of the former, and its fineness
Production is much larger than 2.5 ~ 4.5 times the former.