The selection process is a closed-circuit grinding. The product size is less than 0.074mm, about 65%. The original ore is first selected from copper . After a coarse, two-fine, and two-swept copper concentrate, the copper tailings are selected to be sulphur after slurry adjustment. The crude, have a sulfur concentrate swept away, tailings iron, through a coarse and a fine iron ore concentrate to give a final tailings. See below.
The copper tailings are selected from sulfur. The original design is to directly select the sulfur after the flotation tailings are removed by a hydrocyclone to remove a large amount of pulp and chemicals. However, the production index has been very low. In recent years, the production has been continuously innovated, and it has been tested and analyzed. Two idle concentrators, copper flotation tailings before entering the Ñ„30m thickener, and a large amount of acidic water with pH=4.5 under the pit, the bottom stream is sent to the Ñ„12m thickener, and then added to the pit acid water to dilute. Ñ„12m thickener underflow stream enters Sulfur systems, since Ñ„30m thickener freed of a large amount alkaline water, which CW = high concentration of 45% of the underflow and adding acidic water, and after making the mineral slurry pH to 11.0, a sulfur The selection of the conditions created the conditions, and the slurry stayed in the two concentrators for up to 17 hours, which helped to analyze the surface film of pyrite, thus greatly improving the floatability and index of sulfur. See the table below for comparison of indicators.
Prior to 1980, the iron ore grade and sulfur content of the plant had not reached industrial targets, causing certain losses. In 1981 , after sampling and analysis in the laboratory, it was found that the concentrate grade was not high, not the monomer dissociation was not enough, but the influence of gangue entrainment. The addition of a selection made the iron selection index greatly improved, as shown in the table below.
It is worth pointing out that due to the large water content of the raw ore in the ore dressing plant, the washing system has been added with washing measures. The mineral mud and the original ore minerals removed by washing are large and large. Therefore, the plant adopts the mud and sand sorting process. According to the above two flow charts, the copper content of the ore dressing ore accounts for about 12% of the original ore, and the copper concentrate recovered from the slime accounts for about 7.4% of the total recovery. The sulfur concentrate recovered from the mud ore is about The total recovery rate is 5~8%, and the quantity is considerable.
The process indicators for the past years are shown in the table below. The main equipment is shown in the table below.
25-250kva
1.Diesel engine brand options: YUCHAI, DCEC/DONGFENG-CUMMINS, VOLOV, WEICHAI-HUAFENG, WEICHAI-DEUTZ,NANTONG,SHANGCHAI series;
2.Alternator brand options: SHANHUA, GUANGZHOU ENGGA,WUXI STANFORD, SHANGHAI MARATHON series;
3.Standard diesel generator set configuration:
Output type:three-phase&four-wire
Frequency:50HZ
Speed:1500RPM
Rated power:400/230v
Cooling type:closed water-cooling
Protection grade:IP23
Insulation grade:H
4.Optional configuration: 4 protection, self-starting, switching, rainproof generator set, soundproof generator set,container generator set, Silent Generator set, mobile power station.
5.The control system of genset with the mechanical speed governors system is the normao panel;The control system of genset with the electronic speed governors system and the electronic fuel injection system is the standard model.Diesel generator set power station using standard conditions,environment temperature:40℃;altitude:1000m relative humidity:60%.
250kva-1000kva
1.Diesel engine brand options:YUCHAI,CUMMINS, VOLOV, KOREAN DAEWOO,SHANGCHAI,WEICHAI-STEYR,JIANGSU NANTONG.
2.Alternator brand options:SHANHUA, GUANGZHOU ENGGA,WUXI STANFORD, SHANGHAI MARATHON, SIEMENS series;
3.Standard diesel generator set configuration:
Output type:three-phase&four-wire
Frequency:50HZ
Speed:1500RPM
Rated power:400/230v
Cooling type:closed water-cooling
Protection grade:IP23
Insulation grade:H
4.Optional configuration: 4 protection, self-starting, switching, rainproof generator set, container generator set, silent generator set, soundproof generator set,mobile power station.
5.The control system of genset with the mechanical speed governors system is the normao panel;The control system of genset with the electronic speed governors system and the electronic fuel injection system is the standard model.Diesel generator set power station using standard conditions,environment temperature:40℃;altitude:1000m relative humidity:60%.
1000kva-2500kva
1.Diesel engine brand options: PARKINS, CUMMINS, MERCEDES-BENZ MTU, MWM, DEUTZ, JICHAI series;
2.Alternator brand options: SHANHUA, GUANGZHOU ENGGA,WUXI STANFORD, SHANGHAI MARATHON, SIEMENS series;
3.Standard diesel generator set configuration:
Output type:three-phase&four-wire
Frequency:50HZ
Speed:1500RPM
Rated power:400/230v
Cooling type:closed water-cooling
Protection grade:IP23
Insulation grade:H
4.Optional configuration: 4 protection, self-starting, switching, rainproof generator set, container generator set, silent generator set, soundproof generator set,mobile power station.
5.The control system of genset with the mechanical speed governors system is the normao panel;The control system of genset with the electronic speed governors system and the electronic fuel injection system is the standard model.Diesel generator set power station using standard conditions,environment temperature:40℃;altitude:1000m relative humidity:60%.
Kva Generator,Kva Diesel Generator,Standby Generator Set,Kva Silent Diesel Generator
SHANDONG HUALI ELECTROMECHANICAL CO.,LTD , http://www.shanhuachina.cn