Method for preparing ceramsite proppant by using high-calcium circulating fluidized bed fly ash as raw material
A high-calcium sulfur-fixing ash and proppant technology, which is applied in chemical instruments and methods, earthwork drilling, drilling compositions, etc., can solve the problem of low proppant strength, difficult control of ball formation, and energy consumption of ceramsite proppant Advanced problems, to achieve the effect of enhancing the compressive strength and optimizing the performance
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specific Embodiment example 1
[0026] (1) Weigh 40 parts of high-calcium sulfur-fixed ash and 50 parts of medium-grade bauxite according to a certain proportion and mix them. Add the mixture, balls and water into the ball mill at a ratio of 2:4:1, and wet mill for 6 hours.
[0027] (2) Put the wet-milled mixture into an oven with a set temperature of 180°C and dry until the mixed fines are not sticky, and then use a ball mill to disperse the mixture again. The dispersion time of the ball mill is 60 minutes, and the particle size distribution is 10um. ~20um fine powder.
[0028] (3) Get 10 parts of water glass with a modulus of 2.8 and 10 parts of water to prepare a water glass solution with a Baume degree of 28Be, put the prepared mixed fine powder into a sugar-coated granulator, and take the atomized water glass solution As a binder, a ceramsite sand green body with high sphericity, smooth surface and dense particles is prepared, and the mass ratio of water glass solution to mixture is 2:9.
[0029] (4) D...
specific Embodiment example 2
[0035] (1) Weigh 50 parts of high-calcium sulfur-fixing ash and 40 parts of medium-grade bauxite according to a certain proportion and mix them. Add the mixture, balls and water into the ball mill at a ratio of 1.5:4:1, and wet mill for 8 hours.
[0036] (2) Put the wet-milled mixture into an oven with a set temperature of 180°C for drying, and then use a ball mill to disperse the finely ground mixture again. The ball-milling dispersion time is 120 minutes, and a fine powder with a particle size distribution of 10um to 15um is obtained. pink.
[0037] (3) Get 5 parts of water glass with a modulus of 2.8 and 15 parts of water to prepare a water glass solution with a Baume degree of 20Be, and put the prepared mixed fine powder into a sugar-coated granulator to atomize the water glass solution As a binder, the ceramsite sand green embryo with high sphericity, smooth surface and dense particles is prepared, and the mass ratio of water glass solution to mixture is 2:8.
[0038] (4) ...
specific Embodiment example 3
[0044] (1) Weigh 40 parts of high-calcium-sulfur-fixing ash and 40 parts of medium-grade bauxite according to a certain proportion and mix them. Add the mixture, balls and water into the ball mill at a ratio of 1.8:4:1, and wet mill for 7.5 hours. .
[0045] (2) Put the wet-milled mixture into an oven with a set temperature of 180°C for drying, and use the ball mill to disperse the finely ground mixture again. The dispersion time of the ball mill is 120 minutes, and a fine powder with a particle size distribution of 10um to 20um is obtained. pink.
[0046] (3) Get 8 parts of water glass with a modulus of 2.8 and 15 parts of water to prepare a water glass solution with a Baume degree of 20Be, and put the prepared mixed fine powder into a sugar-coated granulator to atomize the water glass solution As a binder, a ceramsite sand green body with high sphericity, smooth surface and dense particles was prepared, and the mass ratio of water glass solution to mixture was 2:10.
[004...
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