Lead zinc ore Taolin FIG. 3 on the disc central shaft development system of FIG.
HDPE Water supply pipes Appearance, standard and Application
Black pipe body with blue belt. Implementation of GB/13663-200 《water supply HDPE pipe》;Drinking water pipe health performance in line with GB / T17219 requirements. The production have PE80 and PE100 two kinds of raw martials , generally used for pressure water transport. the products are widely preferred in the Urban water supply, municipal engineering, mining factory construction, fire protection, small town construction and civilized ecological village construction projects.
HDPE Water supply pipes Specification
PE100
1. OD 20mm(PN1.6)
2. OD 25mm(PN1.6)
3. OD 32mm(PN1.0.PN1.25.PN1.6)
4. OD 40mm(PN0.8.PN1.0.PN1.25.PN1.6)
5. OD 50mm(PN0.6.PN0.8.PN1.0.PN1.25.PN1.6)
6. OD 63mm(PN0.6.PN0.8.PN1.0.PN1.25.PN1.6)
7. OD 75mm(PN0.6.PN0.8.PN1.0.PN1.25.PN1.6)
8. OD 90mm(PN0.6.PN0.8.PN1.0.PN1.25.PN1.6)
9. OD 110mm(PN0.6.PN0.8.PN1.0.PN1.25.PN1.6)
10. OD 125mm(PN0.6.PN0.8.PN1.0.PN1.25.PN1.6)
11. OD 140mm(PN0.6.PN0.8.PN1.0.PN1.25.PN1.6)
12. OD 160mm(PN0.6.PN0.8.PN1.0.PN1.25.PN1.6)
13. OD 180mm(PN0.6.PN0.8.PN1.0.PN1.25.PN1.6)
14. OD 200mm(PN0.6.PN0.8.PN1.0.PN1.25.PN1.6)
15. OD 225mm(PN0.6.PN0.8.PN1.0.PN1.25.PN1.6)
16ËŽ OD 250mm(PN0.6.PN0.8.PN1.0.PN1.25.PN1.6)
17ËŽ OD 280mm(PN0.6.PN0.8.PN1.0.PN1.25.PN1.6)
18ËŽ OD 315mm(PN0.6.PN0.8.PN1.0.PN1.25.PN1.6)
19ËŽ OD 355mm(PN0.6.PN0.8.PN1.0.PN1.25.PN1.6)
20ËŽ OD 400mm(PN0.6.PN0.8.PN1.0.PN1.25.PN1.6)
21ËŽ OD 450mm(PN0.6.PN0.8.PN1.0.PN1.25.PN1.6)
22ËŽ OD 500mm(PN0.6.PN0.8.PN1.0.PN1.25.PN1.6)
23ËŽ OD 560mm(PN0.6.PN0.8.PN1.0.PN1.25.PN1.6)
24ËŽ OD 630mm(PN0.6.PN0.8.PN1.0.PN1.25.PN1.6)
25ËŽ OD 710mm(PN0.6.PN0.8.PN1.0.PN1.25.PN1.6)
26ËŽ OD 800mm(PN0.6.PN0.8.PN1.0.PN1.25.PN1.6)
PE80
1.OD 20(PN1.25)
2.OD 25(PN1.25)
3.OD 32(PN0.8.PN1.0.PN1.25)
4.OD 40(PN0.6.PN0.8.PN1.0.PN1.25)
5.OD 50(PN0.5.PN0.6.PN0.8.PN1.0.PN1.25)
6.OD 63(PN0.5.PN0.6.PN0.8.PN1.0.PN1.25)
7.OD 75(PN0.5.PN0.6.PN0.8.PN1.0.PN1.25)
8.OD 90(PN0.5.PN0.6.PN0.8.PN1.0.PN1.25)
9.OD 110(PN0.5.PN0.6.PN0.8.PN1.0.PN1.25)
10.OD 125(PN0.5.PN0.6.PN0.8.PN1.0.PN1.25)
11.OD 140(PN0.5.PN0.6.PN0.8.PN1.0.PN1.25)
12.OD 160(PN0.5.PN0.6.PN0.8.PN1.0.PN1.25)
13.OD 180(PN0.5.PN0.6.PN0.8.PN1.0.PN1.25)
14.OD 200(PN0.5.PN0.6.PN0.8.PN1.0.PN1.25)
15.OD 225(PN0.5.PN0.6.PN0.8.PN1.0.PN1.25)
16.OD 250(PN0.5.PN0.6.PN0.8.PN1.0.PN1.25)
17.OD 280(PN0.5.PN0.6.PN0.8.PN1.0.PN1.25)
18.OD 315(PN0.5.PN0.6.PN0.8.PN1.0.PN1.25)
19.OD 355(PN0.5.PN0.6.PN0.8.PN1.0.PN1.25)
20.OD 400(PN0.5.PN0.6.PN0.8.PN1.0.PN1.25)
21.OD 450(PN0.5.PN0.6.PN0.8.PN1.0.PN1.25)
22.OD 500(PN0.5.PN0.6.PN0.8.PN1.0.PN1.25)
23.OD 560(PN0.5.PN0.6.PN0.8.PN1.0.PN1.25)
24.OD 630(PN0.5.PN0.6.PN0.8.PN1.0.PN1.25)
25.OD 710(PN0.5.PN0.6.PN0.8.PN1.0.PN1.25)
26.OD 800(PN0.5.PN0.6.PN0.8.PN1.0.PN1.25)
HDPE Water supply pipes Features
n Long service life: In normal working conditions, HDPE pipe can be safely used for more than 50 years
n Pipeline system loss: no more than 10%
n Excellent corrosion resistance: in addition to a small number of strong oxidants, can withstand a variety of chemical media erosion, no electrochemical corrosion;
n Excellent anti-wear properties: in the transmission of ore slurry, HDPE pipe wear resistance is more than four times the steel pipe
n Good health performance: In HDPE pipe manufacturing process no need add any heavy metal salt stabilizer, non-toxic materials, no scale layer, do not breed bacteria, a better solution to the secondary pollution of urban drinking water
n Strong impact resistance: HDPE pipe toughness is good, impact resistance is high, heavy pressure directly through the pipeline, will not lead to pipe rupture;
n Reliable connection performance: HDPE pipe hot melt or fused interface strength is higher than the pipe body, the seam will not be disconnected due to the soil movement or the load effect;
n Good construction performance: light pipe, welding process is simple, easy construction, the comprehensive cost of the project is low.
Hdpe Water Supply Pipes,Hdpe Water Supply Plastic Pipe ,Hdpe Pipe For Water Supply,Black Water Supply Hdpe Pipes Hebei Fangyu Trade Co., Ltd. , https://www.fangyu-filtermedia.com
1. Lower shaft development The lower shaft development is the most widely used in shaft development. For mines with long going, especially large scales, in order to make underground transportation, mining sequence, production distribution, ventilation, infrastructure speed and roadway maintenance conditions the best, as long as the site, terrain and engineering geological conditions permit, the shaft should be placed in the underground as much as possible. Transport work is minimal or close to the minimum (see Figure 1). This will enable the mine to obtain better economic benefits. 
1-main well; 2-second well; 3-dong return wind well; 4-west return wind well; 5--extracted area; 6-mineral-free zone
HDPE Water supply pipes
The shaft development method can be divided into the development of the lower shaft, the development of the side shaft, and the development of the upper shaft.
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Figure 1 bow Changling iron ore central shaft development system of FIG.
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1-Northwest wind shaft fan fan room; 2-slope road; 3-140m yard; 4-140m cornice; 5-mine slip;
6-180m flat raft; 7-235m ç¡ mouth; 8- Dongfeng well fan blower room; 9- southeast wind well fan blower room; 10-breaking chamber;
11- -220m parking lot Shimen; 12--160m parking yard Shimen; 13-rock chute; 14- rock drilling machine repair room; 15-filling well
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2. Flanking shaft development
When the deposit is limited by the site, topography or engineering geological conditions, if the lower bed of the deposit is not suitable for construction or the original site has been built on one wing of the deposit, the flank shaft can be used for development. When the length of the deposit is short and the construction scale is small, in order to reduce the number of wells And to simplify the transportation and ventilation system, you can also use the flank shaft to develop. When using a flank shaft, the two wings of the deposit, especially the one that is placed in the lift shaft, must be explored. Yangjiazhangzi Mining Bureau Lingqian Mine, Hongqiling Nickel Mine Seven Mining Area (see Figure 2), etc. are all exploited by flank shafts.
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Figure 2 Diagram of the development of the wing shaft of the Qiqiling District in Hongqiling
1-lift shaft; 2-scraper maintenance room; 3-passage transport lane; 4-slope track;
5-Pedestrian, drainage channel; 6-slip mine; 7-person, drain, ventilated patio; 8-sand well and pipeline well;
9-filling mixing station; 10-sand transfer belt; 11-ventilation shaft; 12-waiting room and dispatching room;
13-Motor garage and rock drill repair room; 14-series substation; 15-downhole explosives library
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3. Open up the shaft
When the lower plate and flank of the deposit have no construction conditions, they have to build a factory on the upper plate (see Figure 3); or the inclination of the deposit is close to vertical or horizontal, the shaft is built on the upper plate for the site and external transportation, infrastructure investment and operation When the fee is superior to the lower plate, the upper shaft can be used for development. Compared with the development of the lower plate and the side shaft, the upper shaft has the following shortcomings: the initial stone door is long, so the amount of infrastructure construction is large, the construction time is long, the investment is large, and the economic benefit is poor when the enterprise is put into production. If the shaft passes through the ore body, it can overcome the above shortcomings, but it needs to leave a security pillar, so it is rarely used.
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