Taixi coal of Ningxia:  Taixi coal is famous for made in taixi town shizuishan city ningxia hui autonomous region. It has three low index(low ash, low sulfur, low phosphorus), six high index(high calorific value, high ratio resistance, high lump coal rate, high chemical activity high clean coal, high mechanical strength), It is a crown of domestic high-quality coal, exported to more than 10 countries Europe and America.

It is stable chemical performance, do not contain toxic substances, wear resistance, acid, neutral and alkaline water shall not be dissolved, and anthracite coal particle surface roughness, and a good adsorption capacity, pore ratio (> 50%), a higher including carrying capacity, because of the light, the back flush strength is low, can save a lot of backwash water and electricity. 

Anthracite filter material with quartz sand filter material used in conjunction with China is the promotion of double rapid filter and three layer filter, filter can filter the best materials. Is to improve the filter speed increase unit area water yield and doubled section carrying capacity, reduce the project cost and reduce covers an area of the most effective way. Widely used in chemical industry, metallurgy, thermoelectric, pharmaceutical, paper making, printing and dyeing, food and other production before and after the water treatment process. 

Anthracite filter material USES: 

Practical from general acid, and alkaline water purification treatment, it is double, three filter indispensable water purification materials, the technical indicators are reaching and more than the ministry of construction (CJ/T44-1999 standard. Filter principle: the water\'s fine suspended solid grain after dosing flocculation, the anthracite filter material to filter. 

二．Application:

It is used for raw water and industrial water supply Europe filtration purification treatment. When using the form of filter according to determine if the use of parameters, general double filter section of pavement thickness for 300-400 mm; Normal filter speed 10-14 m/h, forced filter speed 14-1 8 m/h, Three layer filter material pavement thickness 450 mm, normal filter speed eighteen to twenty m/h, forced filter speed and ~ 25 m/h. Filter backwashing with water wash, rinse with water vapor or surface flushing. 

Our filter media is made of Taixi anthracite by washing, chosen, smash, repeatedly screening and so on procedures. It has nice lustrousness, mechanical strength, resist compression, hard wearing and steady chemical activity. Also, it has some separate-absorb activity, which can absorb and disposal colour, stink, flavour and minute organism in water, and applied to filter life water, industrial water as well as municipal sewage. It is a nice material for environment protection.