Coal slurry viscosity
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What is the impact of coal slurry viscosity on gasification?
Coal slurry viscosity is related to concentration, and its impact on gasification is* * now: The higher the concentration of coal-water slurry, the less water enters the gasifier and the higher the effective concentration. The less ignition heat required for combustion and the shorter the burnout time, which is beneficial to improving the combustion efficiency of coal-water slurry. However, the higher the concentration, the greater the viscosity, and the flow performance decreases. This not only increases the flow resistance of the pipeline, but more importantly affects the atomization, ignition and burnout of the coal-water slurry.
If it is too low, the furnace temperature will rise, the oxygen-to-coal ratio will be high, and the gas generation will be low, affecting production.
Refractory bricks are the key component of Texaco equipment and the main factor in maintaining the safe operation of the equipment. How can we ensure long-term safe operation?
The high concentration of coal slurry has a good atomization effect, but the large number of coarse particles also increases the wear on the pipeline. Generally, the concentration of coal-water slurry is controlled at 60%
The viscosity is high, the coal water slurry concentration is high, the gasification intensity is high, and the gas production is large. But if it is too high, it will affect the transportation and cause serious burner wear.
1. The viscosity affects the concentration of coal slurry and the transportation of coal slurry. However, the viscosity of coal slurry affects the concentration, and the concentration does not affect the viscosity. 2. The viscosity affects the transportation, oxygen-to-coal ratio, gasifier temperature, and gasification furnace gas production. If the transportation time is long, the coal slurry will settle in the pipeline valve and reduce the amount of coal entering the furnace, especially at the inlet of the high-pressure coal slurry pump and the low-pressure coal slurry pump, which will cause a large number of coal slurry pumps. If the change in viscosity is caused by the particle size, if the particle size is large, it will have a great impact on the valve.
Factors causing viscosity, additives, particle size, concentration, these are the most important points.
Does anyone know if the coal ash viscosity in the coal parameters and the coal slurry viscosity mean the same thing? What is the viscosity of coal ash used for? Thanks
Coal ash viscosity and coal slurry viscosity are two concepts. The viscosity of coal ash is an indicator of the apparent flow of coal ash at high temperatures. The slag discharge situation of the gasifier can be judged by measuring the viscosity of coal ash.
I would like to ask, what is the state of the oil-coal slurry, and at what temperature can it be mixed with what kind of oil without stratification to achieve uniform mixing and facilitate pipeline transportation. What is the pipeline conveying line speed? Is 1.5m/s okay? What we use here is hydrogen-donating solvent oil with a density of 0.9-1.