Yichun Yankuang Concentrator

In 1970 the mine was designed by the Nanchang Nonferrous Metallurgy Design and Research Institute, designed to scale 1500t / d.
First, the nature of the ore: Yichun Ta-Nb based feldspar mineral of sodium - greisenization - lepidolite granite type containing tantalum, niobium, lithium, rubidium, cesium, beryllium various large deposits of rare metals. The ore of the main ore body has three kinds of ore types: residual slope type - topsoil, weathering type - weathered, semi-weathered ore and primary ore. The change of ore is gradually weakened according to the degree of sodiumation from top to bottom. The content of useful elements of strontium, barium, lithium, strontium and strontium gradually decreases. The size of the useful minerals gradually becomes finer, and the hardness of the ore becomes harder. Symbiotic minerals Correspondingly complex, the dispersion rate of the main useful elements 钽 and 铌 is increased. Tantalum and niobium-rich minerals are mainly iron manganese tantalum and niobium ore, microlite, tantalum-containing cassiterite. Lithium minerals are mainly lithium mica. The strontium minerals are mainly beryl and sodium phosphite . Most of the cockroaches and cockroaches are found in lithium mica. The gangue minerals are mainly feldspar and quartz . Small amounts of other minerals are topaz, magnetite, hematite, titanium, iron ore, manganese ore, apatite. The multi-element analysis of ore is shown in Table 1.
Table 1 Multi-element analysis of ore
element
SiO 2
Al 2 O 3
Na 2 O
K 2 O
Fe 2 O 3
MgO
CaO
MnO
Li 2 O
Rb 2 O
Cs 2 O
BeO
content,%
65.53
18.33
4.70
2.00
1.16
0.41
0.16
0.11
1.08
0.30
0.092
0.03
element
Nb 2 O 3
Ta 2 O 3
SnO 2
TiO 2
ZrO 2
U 3 O 8
ThO 2
P 2 O 5
WO 3
S
Ga
Cd
content,%
0.0105
0.016
0.012
0.012
0.003
0.00066
0.001
0.43
0.005
mark
0.0044
0.005
Inlaid particle size of useful minerals: manganese-rich coltan and strontium-containing sillimanite are generally 0.3-0.1 mm, fine-grain is generally 0.2-0.08 mm, lithium mica is generally 0.4-0.1 mm, and ore is broken to 0.3 mm. , useful mineral monomers began to appear, with a mineral dissociation degree of more than 90% when broken to 0.1mm. In the early stage, the content of ore ore in the strong sodium ore body was much higher, and the content of the ore in the ore was less than 0.074mm, which was 11.37%. The original ore contains bismuth pentoxide as 0
0276%, the 钽铌 ratio is 1.76, and the lithium oxydioxide content is 1.2%.
The natural rest angle of the ore is 40°; the Platt hardness is f=10~12; and the internal friction angle is 29°31′. The mineral density is shown in Table 2.
Table 2 Mineral density
Mineral name
Manganese-rich coltan
Fine spar
Lanthanum-containing
Feldspar
quartz
Lithium mica
topaz
Density, t/m 3
6.28
5.68
6.41
2.7
2.65
2.87
3.4 to 3.6
Second, the process: the transformation process after beneficiation plant more reasonable and perfect. Has the following characteristics.
The ore washing and washing adopts the combined multi-level washing process of vibrating ore screening washing machine, heavy vibrating screen, single-axis vibrating screen and spiral classifier. Practice has proved that the process is applicable to ore with a large change in the content of water in the ore. The washing and de-slurry efficiency is high, and the washing rate of the slime (0.2mm) is over 88%. The crushing and washing process is shown in Figure 1.
Figure 1 Yichun antimony ore dressing plant crushing process
The rod mill and the linear vibrating screen form a closed circuit, and the spiral classification machine has a secondary classification of the grinding and classification process, which can improve the grinding efficiency and reduce the wear loss of the useful mineral. The dissociation and grading of the economy is crucial for gravity beneficiation. The original curved screen and the rod mill constitute a closed circuit, the screening efficiency is only 35% to 56%, and the operation is troublesome. After the linear vibrating screen is used, the screening efficiency is over 80%, and the grinding efficiency of the rod mill is increased by 5.4%. The treatment volume is increased by 7% to 8%. The second-stage ball mill uses a hydrocyclone and a spiral classifier (or fine crusher) to jointly dewater and de-fine (0.2mm) process. The occupancy rate of the qualified grain-level grinding mill is less than 0.2mm and the grinding fraction is reduced from 50% to 36.5%. More than 60%, the ball mill unit throughput is increased from 0.405 t / (m 3 · h) to 0.54 t / (m 3 · h). The coarse-grained beneficiation process is shown in Figure 2.
Figure 2 The first stage grinding coarse-grain process of Yichun Yankuang Concentrator
Strengthening the classification, de-sludge and de-ironing of materials before sorting is essential for all operations of gravity beneficiation. Multi-level grading and de-smelting can reduce the level of sorting materials, strengthen the concentration of slime and improve the sorting effect. A graded demagnetization of 0.038 ~ 0mm particle size return rate of about 53%. Multi-level graded de-scoring 0.038 ~ 0mm grain-level return rate of more than 70%. During the processing, a considerable amount of iron (containing about 0.13% to 0.15% of iron) is mixed in, and the iron is easily deposited and oxidized to adhere to the surface of the sorting equipment, which destroys the normal sorting process and affects the beneficiation effect. The magnetic separator with suitable performance is located in a reasonable part of the process and the iron is released in time, which is beneficial to the convenient operation management and the improvement of the ore dressing index. The rough selection equipment adopts a spiral chute, which can discard the tailings from 60% to 80%, and the enrichment ratio is 3-6 times, thereby greatly reducing the shaker with a large area. The fine-grained beneficiation process is shown in Figure 3.
Figure 3 The second stage grinding fine-grained process of Yichun Yankuang Concentrator
The rate of primary slime produced by washing ore accounts for more than 16% of the original ore, the occupational ratio of niobium oxide is more than 15%, the yield of secondary slime is 32%, and the proportion of niobium oxide is more than 20%. The primary slime washed out from the ore and the secondary slime produced during the crushing process have different particle size composition and useful mineral content. The slime treatment is treated separately with primary and secondary slime. Crafts and equipment to make use of each other's strengths to make up for the shortcomings. At the same time, it strengthens the concentration of slime, pays attention to the slag removal, dehydration, de-fine (0.01mm) particle size, stable ore concentration and ore supply. The concentrate grade [(TaNb) 2 O 5 content] of the original slime selection is more than 50%, and the recovery rate is over 40%. The process flow is shown in Figure 4.
Figure 4 Process of raw slime in Yichun Yankuang Concentrator
The secondary ore concentrate has a concentrate grade of over 18% and a recovery rate of about 14%. The process flow is shown in Figure 5.
Figure 5 Secondary slime process in Yichun Yankuang Concentrator
The mine is a symbiotic deposit containing various rare metal minerals such as lanthanum, cerium, lithium, lanthanum, cerium and lanthanum. The gangue mineral is mainly composed of feldspar and quartz, and is an ideal raw material for the glass and ceramic industries. Has a high comprehensive utilization value. Giving full play to its resource advantages and doing a good job of comprehensive recycling are important features of the plant. At present, in addition to antimony concentrate, there are also lithium mica concentrate, feldspar powder and kaolin products. The process of lithium mica and feldspar powder recycling is shown in Figure 6. The main production indicators are shown in Table 3. The unit consumption indicators are shown in Table 4. The main equipment is shown in Table 5.
Figure 6 Process of lithium mica and feldspar powder recovery in Yichun Yankuang Concentrator
Table 3 Main process indicators
project
in 1980
1981
1982
1983
1984
1985
α(TaNb) 2 O 5 ,%
β(TaNb) 2 O 5 ,%
ε(TaNb) 2 O 5 ,%
γ(TaNb) 2 O 5 ,%
0.0328
44.85
42.84
0.0313
0.0305
45.50
44.08
0.0295
0.029
45.71
46.58
0.0295
0.0301
42.85
43.40
0.0305
0.030
44.91
45.60
0.0305
0.0306
41.98
46.48
0.0339
Table 4 Unit consumption indicators (based on raw ore)
name
water
Electricity
Steel rod
Steel ball
Mixed amine
unit
m 3 /t
kW·h/t
Kg/t
Kg/t
g/t
Quantity
14.7
29.1
0.7
0.4
300
Table 5 Main equipment
Serial number
Equipment name and specifications
unit
Quantity
Remarks
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
twenty one
twenty two
twenty three
twenty four
25
26
27
1417×6750 vibration feeding ore screening washing machine
900×1200 jaw crusher
Φ1650 standard cone crusher
Φ2200 short head cone crusher
1750×3500 heavy vibrating screen
1200×2400 mining single-axis vibrating screen
Φ1500 high-grade single spiral classifier
Φ2100×3000 rod mill
1200×2800 linear vibrating screen
Φ2100×2200 wet lattice ball mill
Φ250 hydrocyclone group
Φ1200 spiral chute
Φ900 spiral chute
Φ600 spiral chute
Φ1000 high-grade single spiral classifier
Φ250 hydrocyclone
Four-chamber mechanical mixing hydraulic classifier
1800×4500 shaker
Φ800×600 centrifugal concentrator
1000×3000 four-layer belt chute
Φ3.6m center drive concentrator
Φ6m center drive concentrator
Φ12m center drive concentrator
Φ9m center drive concentrator
Φ30m peripheral drive concentrator
Φ45m peripheral drive concentrator
XJK-1.1 flotation machine
station
station
station
station
station
station
station
station
station
station
group
station
station
station
station
station
station
station
station
station
station
station
station
station
station
station
groove
1
1
1
1
1
1
3
2
8
2
2
16
12
14
2
12
4
60
28
12
2
1
1
3
1
1
20
Non-standard
One of the washing mines
13~15t/(台·h)
8 sets per group
3 heads per unit, 1.2 to 1.6t/(head·h)
3 heads per unit, 0.8~1.2t/(head·h)
2 heads per unit, 0.3~0.4t/(head·h)
For raw slime
Ibid.
Ibid.
Secondary slime
Ibid.
Tailings dewatering

Nylon Pleated Filter Cartridge

Nylon Pleated Filter Cartridge is made of pleated nylon membrane, polypropylene non-woven fabrics and polypropylene cage. During the production, it is purity, free of surfactants, resins, binders and adhesives. It can be used for the liquid and solvent clarification and critical filtration.


● Features and Benefits

Naturally Hydrophilic Nylon Membrane for sterile filtration
Wide Chemical resistant to alkaline solutions and organic solvents
Especially suitable for filtering alkaline, but high adsorbance of protein
100% integrity test; Meet FDA standard 
● Micron Rating(µm):  0.10    0.20    0.45    0.65    1.00    3.00


● Typical Applications

1. Pharmaceuticals, APIs, Biologics; Solvent;
2. Ultrapure water and disk, display, multi silicon process water in Electronics;
3. Food & Beverages, Wine, Beer, Mineral Water;
4. Fine chemicals, especially ketone, ester, ether;


● Materials of Construction

Filter Media: Nylon
Support Layer: Polypropylene
Inner Core: Polypropylene/Stainless Steel
Outer Core: Polypropylene


●Cartridge Dimensions

Outer Diameter: 69mm
Inner Diameter: 33mm
Effective Filtration Area: ≥0.65m2


●Operation Conditions

Normal Operating Temperature: ≤60℃
Max. Operating Temperature: 80℃(△P≤0.10Mpa)
Max. Differential Pressure:  Normal Flow direction:4.2 bar at 25℃
Reverse Flow direction: 2.1 bar at 25℃
Steam Sterilization for 30 minutes at 121±2℃
PH Value compatibility: 6-13


●Cartridge Safety

Endotoxin: <0.25 EU/ml
Extractable: 0.03g/10"

Nylon Pleated Filter Cartridge

Industrial Water Filter,Nylon Pleated Filter Cartridge,Nylon Micron Membrane,Nylon Filter Cartridge

Ji'an city Qing Feng Filter Equipment Material CO.,Ltd , https://www.qingfengfilter2.com