The “ABC†process has the following characteristics:
1) The self-grinding machine can open its doors and fully utilize its production capacity.
2) Crush the hard-to-grind particles with a fine crusher to avoid the use of high-quality steel balls and liners required for semi-self-grinding.
3) After the finely crushed product is stored in the mine bin, it can enter the ball mill , and the ball mill can be adjusted to make the whole system production capacity stable.
4) The largest domestic ф7500×2800mm self-grinding machine and ф3600×6000mm ball mill were selected. 350/300mm (14/12in) Walman pump was introduced and equipped with hydraulic coupling for speed regulation and 660mm (26in) Crewe. The Boer hydrocyclone is used as a grading equipment for grinding, and the JJF-16 flotation machine is used for roughing and sweeping. The effect is good, especially the 16m3 flotation machine is more prominent.
Since the self-grinding product has a good dissociation degree of useful minerals and the classification efficiency of the cyclone is high, the selection index is higher than the conventional grinding and floating index, as shown in the following table.
" ABC " process compared to regular process indicators ( 1985 indicator)
Process name | Health  Production  Means  Standard | Grinding fineness, % | Prepare  Note | ||||
Original ore grade % | Concentrate grade % | Tailings grade % | Rough recovery rate % | + | |||
" ABC " often  regulation | 0.553 0.563 | 9.76 7.40 | 0.0614 0.078 | 89.47 87.11 | 6.1 13.6 | 67.3 57.9 |  1~8 system |
   The process indicators of the selected factory over the years are shown in the following table:
Dexing copper ore beneficiation plant has the following characteristics:
1) Large geological reserves, low grade of ore, but good ore selectivity, suitable for the construction of large-scale concentrating plants.
2) From the process flow to equipment selection, it is the most comprehensive and representative plant in China. There are three stages in the crushing process (the crushing station that does not include the stope). A closed-circuit and wash-washing with single-stage ball milling process; there are three sections and one closed-circuit non-washing and single-stage ball milling process; there is “self-grinding-ball milling-fine crushing†Grinding the new process. In the equipment selection, the crushing equipment includes domestic rotary crusher , jaw crusher, standard and short-head cone crusher, and introduced hydraulic cone crusher; grinding machine has ф1500×3000mm, ф2100×3000mm, ф3200×4500mm, Ф3600×6000mm and the second selection plant are imported from abroad with various specifications such as ф5.03×6.4m; the self-grinding machine has the first domestic ф7500×2800mm self-grinding machine; the grading equipment has high-grade and sunken spirals. There are also domestic and imported hydrocyclones outside the classifier. In addition to the XJK-2.8 flotation machine, there are CHF-X14 inflatable mechanical agitation flotation machine and JJF-4 and JJF-16 mechanical agitation. Flotation machine and so on.
3) Dexing Copper Mine has been built in the early 1960s and has been in production since 1965. It has been built for several times. This in batches, from small to large construction methods, not only conducive to the construction of the mine, but also for the use of funds, and economic recovery is more reasonable, is a good way to mine construction.
The main equipment of a selection plant is shown in the following table:
Mould Temperature Controller
RTC series automatic mould temperature controller is mainly used for mould heating and keeping constant temperature, as well
as for the fields with same requirement. This series adopts heat-exchanging principle, using water or high- heat-conduction oil as media to keep the mould at a constant temperature during molding, which guarantee top quality for molding. The optimized design ensures the heating temperature up to 200 degree centigrade. The characteristics of machine:
(1)Computer control, direct-view, easy and simple for operation, PID temperature control with high accuracy and stable temperature controlling. The accuracy is within ±1 degree centigrade .
(2)Use horizontal pump, running in smooth and steady way, stable flow with long life
(3)Cylindrical tube design, pressurization and explosion-proof.
(4)Automatic alarming function, alarm and stop automatically when the system has a breakdown
(5)Attractive appearance, easily-dismount design, convenient for maintenance
(6)Water and oil cooling type for customers' selection
Oil Type Mold Temperature Controller
Oil Type Mold Temperature Controller,Oil Type Heater Oil Mold Temperature Controller,Oil Type Mould Temperature Controller,Oil Mold Digital Temperature Controller
Ningbo Beilun Rhong Machinery Manufacturing Co., Ltd. , https://www.rhongmachinery.com