Evaluation of the applicable conditions and main advantages and disadvantages of the subsection mining method
The segmentation method is applicable to the ore mining of ore and surrounding rock with a stable slope of 30° to 55° and a steep slope of >55°. (1) The use of trackless shipping equipment, flexibility in application, high mining strength. (2) After the mining house is finished, it is allowed to return to the mining column and treat the gob immediately. This not only improves the recovery rate of ore back to the mining column, but also better handles the empty area, thus creating favorable conditions for the next section of mining. (1) The mining workload is large, because each section must be driven into the section transportation laneway, rock drilling roadway, pillar mining recovery chamber and cutting lane. (2) Most of the roadways are excavated in the rock, and the ore is less produced. With the popularization of trackless equipment in China, the segmentation method is used to mine medium and thick inclined ore bodies, which will be an effective mining method. In particular, when other conditions are better due to the angle of inclination (40° more than one degree), this method can be used when it is not suitable by other methods.
Dawn
has an annual production capacity of 140000 tons. It is the first
enterprise in China to use titanium rich materials as raw materials to
produce Titanium Dioxide,the main products is :
R-2195 is a general-purpose titanium dioxide, rutile titanium dioxide pigment with inorganic surface treatment and organic surface treatment. It has the characteristics of high whiteness, high hiding power, high achromatic power, high weather resistance and easy dispersion.
R-2295 is rutile titanium dioxide pigment with inorganic surface treatment and organic surface treatment. It has the characteristics of high whiteness, high gloss, high covering, high achromatic power, high weather resistance and easy dispersion.
R-2595 is specially designed for the field of decorative laminated paper. The most prominent feature is light resistance and covering power. In the field of decorative paper with high titanium dioxide content using melamine as impregnation resin, it can still provide excellent ash resistance under strong UV environment, and its unique surface coating design provides the retention rate left in the papermaking process.
R-3195 is rutile titanium dioxide oxide material with inorganic surface treatment and organic surface treatment. It has the characteristics of high whiteness, high covering and easy dispersion.
R-3395 is rutile titanium dioxide pigment with inorganic surface treatment and organic surface treatment. It has the characteristics of high whiteness, high covering and easy dispersion.
R-5195 is a rutile titanium dioxide pigment prepared by sulfuric acid method. After special design and special surface treatment, it has good dispersion and ultra-high hiding power in the ink. At the same time, its weather resistance is higher than that of general titanium dioxide.
R-5395 is a rutile titanium dioxide pigment prepared by sulfuric acid method. After special design and special surface treatment, it has good low abrasion rate and good covering power. Titanium Dioxide pigment, white pigment titnaium, TiO2 R2195 Henan Chuange Industry CO.,LTD , https://www.cgpvcresin.com
(two) advantages
(three) shortcomings
Application field: TiO2 R-2195 is a general-purpose product. At present, it is widely used in coating, ink, profile, color masterbatch, papermaking and other industries.
Application field:TiO2 R-2295 is a medium and high-end general-purpose product. At present, it has been used in coating, ink, profile, color masterbatch, papermaking and other industries.
Application fields: decorative laminated base paper (floor, furniture), decorative printing ink.
Application:TiO2 Rr-3195 is a special product for plastics and powder coatings. At present, it is widely used in profile, powder coatings and other industries.
Application: TiO2 R-3395 is a special product for plastics and color masterbatch. At present, it is widely used in color masterbatch, color paste, color chip and other industries.
Application:TiO2 R5195 is recommended to be used in high covering and high weather resistant systems such as ink and coating.Typical physical index AI₂O₃(%) SiO₂(%) ZrO(%) P₂O₃(%) Bulk density (g / cm3) Organic Division
Application:TiO2 R-5395 recommended for gravure and flexographic inks, indoor wood paint and baking paint with medium gloss, as well as water-based and oil-based systems.