IKN industrial equipment emulsifying machine coal chemical project application note
"Coal slurry", Water is one of the important components of the slurry fuel with rheological properties of "water", "coal" and "pulp". Then, the coal water slurry technology is the way to physically process and apply the “waterâ€, “coal†and “pulpâ€. Tracing the evolution process of coal slurry, we can understand the “alternative†process, that is, from pure oil liquid fuel; to coal powder instead of some oil, there is coal-oil mixed type slurry fuel, ie oil coal slurry; In place of some oils, a coal-emulsified oil (oil-water) mixed type slurry fuel appears; and then water replaces all the oil products, and a coal-water mixed type slurry fuel, that is, a coal water slurry, appears. Coal water slurry pulping processes typically include crushing, grinding, agitation and shearing, as well as filtration of the superfines and impurities in the final product.  Usually has the following physical properties: sequence number name Weigh symbol number single Bit number value Prepare Note ( *The physical properties of a certain brand of domestic coal slurry)  In China, the traditional grinding methods are divided into dry grinding and wet grinding, usually using a ball mill with an average particle size of about 50 microns. If IKN ER 2000 series high shear emulsification disperser is used for dispersion grinding, the average particle size can reach below 10 microns, and the advantages of process improvement are reflected from the following aspects:  1)      Improve the dispersibility of coal slurry and reduce the amount of dispersant 2)      Improve the stability of coal slurry and reduce the amount of stabilizer 3)      Improve the combustion efficiency and combustion heat of coal slurry 4)      If the appropriate oxidant is added during shear dispersion, it can help the coal to burn fully. 5)      Can try low temperature combustion to reduce toxic emissions 6)      Greatly improve production efficiency, the processing capacity per hour can reach 100 tons or even higher, online continuous production, under normal conditions, can achieve 3-6 months without downtime 7)      Simple machine maintenance and low failure rate 8)      Reduced wear frequency and cycle of subsequent engineering components due to smaller particles Â
1 % by weight % 66% ± 1%
2 apparent viscosity CP 1000 ± 200 100S-1,
3 gray Ad % <9
4 sulfur St, d % ± 0.5
5 volatiles Vdaf % >30
6 maximum particle size dmax μ m <300
7 average particle diameter dpj <45 μ m
8 calorific Qnet.v.ar KJ / kg 19228 4600 kcal