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The Ministry of Land and Resources has recently issued the “Three-rate minimum requirements†for the rational development and utilization of mineral resources such as nickel , tin , antimony , gypsum and talc (Trial) (hereinafter referred to as “requirementsâ€).
According to the requirements, the recovery rate of open-pit mining of nickel ore is not less than 92%, the shape of ore body is not less than 88%, and the minimum requirement of underground mining recovery is 75%~92%. The mining rate of open-pit mining in tin mine is not less than 95%. The recovery rate of mines with large changes in ore body shape, thin ore body and poor stability of ore is not less than 92%; the minimum index for underground mining recovery is 78%~90 respectively. %. The recovery rate of open pit mining in Yankuang Mine is not less than 95%. The recovery rate of mines with large changes in ore body shape, thin ore body and poor stability of ore is not less than 92%; the minimum index for underground mining recovery is 75%~90 respectively. %. The talc mine shall be no less than 85% open-pit mining and not less than 72% underground. The gypsum mine shall be no less than 90% open-pit mining, and the mining rate of the underground mining shall not be less than 35%; the extremely inclined thick ore body shall adopt the caving method, and the recovery rate shall not be less than 60%; for high-quality fiber gypsum, spherical gypsum, Transparent gypsum mining should be carried out by full filling method, and the recovery rate should not be lower than 85%.
In terms of ore recovery rate, according to the different grades of ore and the difficulty of ore selection, the requirements are clear. The minimum requirements for nickel ore beneficiation recovery are 55%~82%, tin ore is 50%~80%, and antimony ore is 60%~90%. Because the talc mine is currently manually sorted, the ore recovery rate index is difficult to measure, and the ore dressing yield is used to measure the efficiency of talc ore utilization. The gypsum mine does not set the recovery rate requirement for the time being.
The requirements also stipulate the minimum requirements for the comprehensive utilization rate of the associated minerals in nickel, tin and antimony ore; encourage the recycling of the associated minerals in the talc, but there is no requirement for the indicator; the gypsum is not associated with minerals, not for the time being. Set indicators, but encourage qualified mines to apply waste rock to mine filling and building materials.
Product Description
This pc hollow Sheet Extrusion Line realizes continuous production of PC hollow grid sheet, which is applicable to construction decoration, advertisement collocation, and noise insulation of highway as well as packaging. It is characterized by light weight, high intensity, high transparency dampproof, and anticorrosion.
The technology of hollow sheet die with co-extrusion feed block to get UV+PC+UV, UV+PC hollow sheet can save 30% UV on the surface.
PART 1 SHEET SPECIFICATIONS:
Sheet width: 700mm-1050mm- 1220mm-2100mm-2300mm,
Sheet thickness is 4mm-6mm-8mm-10mm-12mm.
Sheet walls: double walls, three walls, multiwalls
PART 2 COMPONENTS OF THIS LINE
Item
Description
Data
1
SJ120/35 Single screw extruder with stainless steel hopper
1 set
2
Screen exchanging unit for PC
1 set
3
Melting gear pump for PC
1 set
4
SJ45/30 Single screw extruder for UV layer
1 set
5
Melting gear pump for uv
1 set
6
T-type Die head (2100mm*4-6mm)
1 set
7
Vacuum calibrating board
1 set
8
cooling table
1 set
9
The first haul off machine with 12 rollers
1 set
10
edge cutting device
1 set
11
5000mm oven
1 set
12
Corona treating unit
1 set
13
up and down sides, double position film laminating device
1 set
14
The second haul off machine
1 set
15
Tranverse cutting machine (length-settled)
1 set
16
material conveyor+6000mm discharge table
1 set
17
eletrical cabinet
1 set
other accessory machine parts
18
500kg mixing and drying machine
1 set
19
AC-25 water chiller
1 set
20
15kw air compressor
1 set
21
sheet crusher
1 set
PART 3 SHEET APPLICATIONS:
1) Sunshades for stadium and bus shelters
2) Lighting for corridors, passages and subway entries
3) Bank ATMs
4) Sound and heat insulation for construction such as: houses
5) Canopies for agriculture greenhouse, zoos
6) PC sheets mainly used for building and decorating materials, greenhouse material, telephone booth, insulation shield express ways & highways
7) Office building, hotels, villas, stadium, schools, bus stop, terminals, hospitals, subway entry and exit doors, etc.
Finshed panel introduction
polycarbonate is best known for its very high impact resistance, fine optical clarity and excellen fire performance.
hollow polycarboante is also often named as strutural polycarbonate, cellular polycarbonate, channel polycarbonate or multiwall polycarbonate.
polycarbonate hollow sheets offer the higher level of glazing performance where transparency along with high impact strength is of vital importance. They have excellent physical, mechnical, electric as well as hot property which explains their high reputation in buildings and decoration industry. They are sold all over the world, making great contribution to customer's beautiful life.
UV protection
solar radiation has a harmful component by UV rays which initiate degradation of many polymetric material including polycarbonate.
This depends on geographic locations, seasons etc. Polycarbonate sheets feature a specifically co-extruded UV absorption and protection layer, which provides long-lasting high stability against demanaging UV radiation, protects againts outdoor weathering and
retains its original color and light transmission.
Material:
PC pellets (germany Baier brand with model 3113 or 3117)
UV material (germany Baier brand with model 510 or 130)
Sheet Plate Board Extrusion Line
Extrusion Line, Panel Extrusion Line, Sheet Extrusion Line
Shandong Qufu Xingbang Heavy Equipment Co., Ltd. , http://www.chinaxingbangheavyindustry.com