Slag Processing Plant

slag vertical mill

Mineral slag refers to the ore residue made in mining. To superior use the mining resources and guard environment, we really need to disposal those mineral slags. You will discover slag cement, Portland slag cement, mineral cotton, blast furnace slag, copper slag and granulated blast furnace slag powder. As of now, mineral slag continues to be widely applied in industries, including within the cement production. Regarding the mineral slag pulverizing, it can be combined with clinker or gypsum for co-grinding. Also, it may be grinded independently then blended with clinker or gypsum.

Slag Processing Plant

Slag ore just after benefielation or smelting residues, may be the present of industrial squander, not only requires up quite a bit of land within the accumulation of the large quantity of slag caused severe air pollution and destruction, but in addition towards the ecological environment in China, China's financial improvement and peoplethe lives and safety in the masses pose a critical risk.
Slag processing and complete utilization of technology, slag vertical roller mill the most direct processing equipment, it may slag grinding into a fine powder, which can then be used in new building materials of slag Portland cement, slag concreteproduction. Therefore, slag mill of choice is essential, and its performance will directly affect the slag fineness, performance and application effect.

spray drying machine

Right after fresh air is filtered and heated, it enters into the air distributor which on the top with the drier. The hot air in spiral form equably enters into the drying room. When liquid raw material are passed through the high-speed centrifugal sprayer on the top of the tower, it will probably be rotated and sprayed into the extreme slim mist liquid beads. Raw material may be dried towards the final products instantly while it contact using the heated air. Finished products are discharged continuously from bottom with the drying tower and cyclones segregator. Wasted air is discharged from blower.

spray drying machine Application

Pharmacy: Hydroxy starch, Vitamin, Spirulina and so on. Chemical Industry: Sodium fluoride (potassium), alkaline dyestuff and pigment, herbicide, pesticides, antiseptic, dyestuff intermediate, compound fertilizer, formaldehyde silicic acid, catalyst, sulphuric acid, amino acid, white carbon, Cupric hydroxide, Cobalt hydroxide, Cobatt Oxalate and so on.
Plastics and resin: AB, ABS emulsion, uric acid resin, phenolic aldehyde resin, urea -formaldehyde resin, formaldehyde resin, polythene, poly-chloroprene and so on..
Food Industry: Fatty milk powder, protein, cocoa milk powder, substitute milk powder, egg white (yolk).
Food and plant: oats,chicken juice, coffee, instant dissoluble tea, seasoning meat, protein, soybean, peanut protein, hydrolysate, saceharin sodium and so on.
Sugar: corn oar, corn starch, glucose, pectin, malt sugar, sorbic acid potassium and so on.
Ceramic: aluminium oxide, ceramic tile material, zifconia magnesium oxide, talcum and so on.

spray drying machine Features

Fast drying speed: following spraying into small drops, contacting area greatly increased. So when these small drops contact with hot air, 95%-98% water will probably be evaporated sonly in 5-35seconds. It is specially suitable for heat sensitive material.
Because product is dried in hot air, so shape of product keeps the same as sprayed drops. It is well dispersed ball shape with great flowability and solubility.
Stable operating: it is automatic and continuous operating equipment which is easy for controlling and adjusting.
Simplified working process: it is suitable for drying slurry with water content between 40%-90%. It will produce uniformed powder and save process including grinding and sieving. Operating condition is fantastic and avoid ash leaking during drying process.
Raw material may be solution, slurry, emultion, supension, paste, melting material, or even caky material.

Double-loop wet scrubbing

DLWS as the washing process with limestone slurry absorber, the desulfurization process is divided into two phases, namely the loop with all the next loop, shown in Figure 1. Synthesized in a two-stage absorber. Limestone slurry to separate into upper and lower loop, along the tangent direction with the flue gas into the absorber under the loop, the flue gas is cooled to saturation temperature, while part from the SO2 is absorbed to generate limestone gypsum (CaSO4 ?¡è 2H2O). Cooling from the flue gas into the absorber spray area on the circuit, well-washed to achieve maximum absorption rate of SO2, SO2 into calcium sulfite, eventually absorbed by the air oxidation product of calcium sulfate crystals (gypsum) slurry containing solid volume of 15%. Right after dehydration, according to the application involves the formation of commercial gypsum plaster or disposable.
DLWS process is characterized by upper and lower PH values ??of the control loop, the loop PH value (5.8-6.5) higher SO2 removal rate towards the maximum, the next loop of the PH value (4-5) The less easily dissolved limestone , absorbent utilization, cost reduction. System desulfurization efficiency up to 95%.

Spray drying FGD (SDA semi-dry)

SDA FGD with Ca (OH) 2 slurry for FGD absorbent, by centrifugal rotary atomizer or air-atomizing nozzle to spray dry absorber within the absorber inside of the spray. Hot gas into the absorber absorbing agent in contact with all the spray, three kinds of simultaneous heat and mass transfer;
1.the acid gas from the gas phase mass transfer into droplets;
2.absorbed acid gases and dissolved Ca (OH) 2 chemical reaction;
3.inside of the water droplets evaporate.
Absorption of the product following drying (mainly CaSO3.1/2H2O) together together with the fly ash collected in the absorber within the bottom or dust collector. Process see Figure 2. SDA process in ideal working conditions, the removal efficiency of 80% -90%. Characterized by-products are solid, there is no wastewater. But absorbent Ca (OH) 2 higher prices, operating costs are not low.