Guidance: Wear-resistant steel ball wear in the operation of the ball mill, will continue to affect the ball mill's work efficiency and work process, affecting the efficiency, then in the usual working conditions, wear-resistant steel What causes the ball in the ball mill?
The following are four major reasons to summarize:
1. Types and properties of wear resistant steel ball media
In the case of wear-resistant steel balls and the same materials, the wet-grinding wear is more severe with wet-grinding than with dry-grinding. In the case of wet abrasion, if the ball is in contact with a certain acid and alkaline medium, corrosion will occur. Wear and erosion are mutually exciting, and the cutting of the material destroys the passivation film and exacerbates the corrosion. As a result, wear of the wear-resistant steel ball under wet grinding conditions is significantly higher than the additive value of corrosion and wear alone.
2. About the diameter and speed of the ball mill
The higher the speed of the ball mill and the larger the diameter, the greater the speed of movement of the ball. When the diameter of the ball mill exceeds 3 meters, it will increase the impact force of the steel ball and accelerate the degree of wear. However, its rotation speed should not be too low, otherwise it will affect the work efficiency of the ball mill.
3. Wear-resistant steel ball diameter, mix ratio and load capacity
The greater the mass of the ball, the greater the diameter. When the speed of the ball mill is constant, the greater the kinetic energy of the ball falling, the greater the impact of the ball. The proportion between the grinding balls has some influence on the wear process. The collision probability between the grinding balls with the same diameter is more, and the higher the impact probability is, the more the wear process tends to fatigue wear. When the load of the ball is larger, the collision probability between the ball and the ball is greater, and the wear process is more prone to fatigue and wear.
4. The nature of the material
The hardness, brittleness, shape and size of materials all have an important influence on the cutting process of wear-resistant steel balls. If the hardness of the material is much lower than the hardness of the wear resistant steel ball, the fatigue wear of the wear resistant steel ball occupies a larger proportion.
The above mentioned four factors affect the wear of the wear-resistant steel ball in the ball mill. During the operation of the wear-resistant steel ball, the above-mentioned four conditions are discovered in time to increase the production efficiency.
Double-color Geomembrane is one kind of Hdpe Geomembrane with two side in different color. This Geomembrane liners can be used as Aquaculture, Landfill Water, Treatment System , Mining etc, area.
Black and White geomembranes offer the advantages of both a light reflective white surface and a black damage detection layer.
The liner`s UV resistant white surface reflects light – minimizing associated heat absorption by as much as 50% – and thus reducing the potential for membrane wrinkling due to thermal expansion and contraction. Traditional black HDPE geomembranes can reach temperatures of 160°F or more and experience thermal expansion exceeding 1% depending on temperature swings.
Visual inspection of the liner for damage is greatly improved. Damage is indicated by any scarring beyond the white, light reflective layer as the contrasting black primary layer is clearly exposed.
The following parameters based on the GRI GM13 for your reference.
If you have special needs, please feel free to tell us.
| Properties | Test Value | |||
| 0.75mm | 1.00 mm | 1.50 mm | 2.00 mm | |
| Thickness - mils (min. ave.)· lowest individual of 10 values |
nom. (mil)-10% |
nom. (mil)-10% |
nom. (mil)-10% |
nom. (mil)-10% |
| Density (min.) | 0.940 g/cc | 0.940 g/cc | 0.940 g/cc | 0.940 g/cc |
|
Tensile Properties (1) (min. ave.)· yield strength· break strength· yield elongation· break elongation |
11 kN/m 20 kN/m 12% 700% |
15 kN/m 27 kN/m 12% 700% |
22 kN/m 40 kN/m 12% 700% |
29 kN/m 53 kN/m 12% 700% |
| Tear Resistance (min. ave.) | 93N | 125 N | 187 N | 249 N |
| Puncture Resistance (min. ave.) | 240N | 320 N | 480 N | 640 N |
| Stress Crack Resistance (2) | 300 hr. | 300 hr. | 300 hr. | 300 hr. |
| Carbon Black Content - % | 2.0-3.0% | 2.0-3.0% | 2.0-3.0% | 2.0-3.0% |
| Carbon Black Dispersion | note (4) | note (4) | note (4) | note (4) |
|
Oxidative Induction Time (OIT) (min. ave.) (5) (a) Standard OIT- or - (b) High Pressure OIT |
100 min. 400 min. |
100 min. 400 min. |
100 min. 400 min. |
100 min. 400 min. |
|
Oven Aging at 85°C (5), (6) (a) Standard OIT (min. ave.) - % retained after 90 days- or - (b) High Pressure OIT (min. ave.) - % retained after 90 days |
55% 80% |
55% 80% |
55% 80% |
55% 80% |
|
UV Resistance (7) (a) Standard OIT (min. ave.)- or - (b) High Pressure OIT (min. ave.) - % retained after 1600 hrs |
N.R. (8) 50% |
N.R. (8) 50% |
N.R. (8) 50% |
N. R. (8) 50% |
Geomembrane Main Application
Aquaculture:
Using the geomembrane anti-seepage feature;
Geomembrane liners can be used as fish ponds, shrimp pond, and other aquaculture.
Landfill:
HDPE geomembrane is the most widely used in landfill anti-seepage engineering material,
The use of main parts of the bottom of the landfill liner, landfill sealing cover, leachate regulating pool liner, etc.
HDPE geomembrane structure with smooth surface and textured surface, suitable for different sites.
Water Treatment System:
Geomembrane is applied to the adjustment of the power plant and sewage treatment plants pool;
and a series of water treatment systems.
Mining:
Geomembrane suitable mining: washing pool, pool heap leaching, heap yard, dissolving tank, tank,
storage area, the bottom line of the tailings seepage control, etc
Double-Color Geomembrane,Double Textured Hdpe Geomembrane,Waterproof Hdpe Geomembrane,Hdpe Geomembrane
Shandong Tianhai New Materials Engineering Co., Ltd , https://www.chinatinhy.com