Mechanism of new coal-saving catalysts and their application in cement production
Mechanism of new coal-saving catalyst
The new type coal-saving catalyst is made of dispersant, catalyst, mineralizer, stabilizer and other components, processed by self-developed technology, which is a kind of common non-hazardous chemical solution products.

Coal combustion is essentially a process in which hydrocarbons are oxidized to produce CO2, H2O, etc. and release heat energy. Coal combustion catalyst does not change the initial reactants and products of the chemical reaction, but only accelerates the combustion process so that the combustible materials are fully combusted, and its catalytic mechanism is as follows:
Improve the calcination efficiency of coal powder. Through the dispersant, the catalyst and stabilizer and other components are uniformly attached to the surface of the coal powder, eliminating the static electricity of coal powder, ensuring the independence and dispersion of the fine particles of coal powder, and improving the contact area of coal powder combustion; meanwhile, letting the coal-saving agent fully penetrate into the inside of the coal seam, improving the working efficiency of the coal-saving agent, and then improving the calcination efficiency of coal powder on a macro level.
Improve the combustion intensity of volatile matter. Through the catalyst composition, the diffusion speed of oxygen is accelerated, so that the precipitation and combustion speed of volatile components in the process of coal powder pyrolysis are improved, and the combustion intensity of volatile components is improved macroscopically.

Improve the clinker production and quality. Through the mineralizer composition, the temperature of raw material forming liquid phase is appropriately reduced, the length of firing belt is extended, and the reaction time of material is increased, thus improving the quality and yield of clinker.
Stabilize the burning effect. Through the composite system constructed by dispersing penetrant, catalyst, mineralizing agent and stabilizer, it improves the combustion efficiency and also improves the effect of stabilizing combustion, and reduces the effect of moisture in the new type of coal-saving catalyst on the transportation and grinding of coal powder.
Permeability experiment. Observe and judge the permeability of coal-saving agent through permeability experiment, the experimental method is as follows: take two 100 ml colorimetric tubes and add 50 ml of deionized water and coal-saving agent respectively, weigh a certain quality of coal powder and add it into two colorimetric tubes at the same time to observe the settling condition of the coal powder, in order to judge the permeability of coal-saving agent. The permeability results are shown in Table 2, from which it can be seen that the coal powder settles rapidly in the coal-saving agent, indicating that the dispersed permeability component in the coal-saving agent plays a more obvious role, and the coal-saving agent can penetrate into the inner coal seam rapidly and give full play to its efficacy.

Mineralization experiment. Observe its effect on clinker firing through mineralization experiment.
Take the blank sample and add coal-saving agent samples to add a certain proportion of water and use molds to press into a cylinder, dry at 105 ℃ for 60min, roast at 900 ℃ muffle furnace for 30min, and then immediately transferred to the 1400 ℃ muffle furnace for 30min, take out the sample immediately after the use of industrial fans to quickly cool to get the black samples, with reference to the GB/T 176-2017 “Cement chemical analysis The f-CaO content of the milled samples was determined with reference to the test method in GB/T 176-2017 “Chemical Analysis of Cement”.