Method for preparing building block sintered from oil field mud
A technology for oil field sludge and building blocks, which is used in the manufacture of tools, clay products, and the removal of solid wastes.
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Embodiment 1
[0025]
[0026] After the above clay and oilfield sludge are pulverized, the weight ratio is 70:30, and a brick and tile binder of 0.2% of the total weight of clay and oilfield sludge is added, which can improve the strength of the sample and reduce shrinkage rate and cracks. The materials are mixed by means of stirring, and water is added while stirring until the water content of the mixture is 7.5-8.5%. After uniform mixing, the mixture is placed in a sealed plastic bag for aging. After aging for 48 hours, it was pressed and formed into a sample with a size of Φ40mm×10mm on a press, and the forming pressure was 8.0MPa. Put the molded product into an oven and dry it at 100°C for two hours, take it out and bake it in a high-temperature furnace, keep it at 1050°C for 1.5 hours, and then cool it with the furnace to get the product. The sintered sample has been tested, and its compressive strength is 36.5MPa, and its bulk density is 2.0g / cm 3 , The porosity is 18.7%. ...
Embodiment 2
[0028] Take by weighing 500 grams of oilfield sludge in Example 1, and after fully elutriating in 500 ml of water, filter to remove most of the soluble salts. The clay in Example 1 and the oilfield sludge after washing salt treatment are weighed in a weight ratio of 50:50, and the water of the oilfield sludge and clay gross weight 35% and oilfield sludge and clay gross weight 0.5% are weighed water glass. The above-mentioned materials are placed in a ball mill for ball milling, and the particle size is controlled to be less than 15% on a 10,000-hole sieve. After the slurry is poured out, it is naturally dried to a moisture content of 5.0-6.5%, and placed in a sealed plastic bag for aging. After aging for 36 hours, it was pressed and formed into a sample of Φ60mm×50mm on a press, and the forming pressure was 12.0MPa. After being naturally dried outdoors for 5 days, it is baked in a high-temperature furnace, kept at 1100°C for two hours, and then cooled with the furnace to obt...
Embodiment 3
[0030] Clay and oilfield sludge among the embodiment 1 are made into major ingredient in the ratio of 65: 35, add the water glass of the fly ash of 25% of clay and oilfield sludge total weight and oilfield sludge and clay total weight 0.5% as Auxiliary material, above-mentioned material is placed in ball mill, add the water of 40% of material total amount, then carry out ball mill, the grain size of control material is less than 12% in ten thousand holes sieve. After the slurry is poured out, it is naturally dried to a moisture content of 4.5-5.5%, and placed in a sealed plastic bag for aging. After aging for 36 hours, the sample was pressed and formed into a Φ60mm×50mm size sample on a press, and the forming pressure was 15.0MPa. After 5 days of natural drying outdoors, it is placed in a high-temperature furnace for roasting, and after being kept at 1050°C for two hours, it is cooled with the furnace to obtain the product. The sintered sample has been tested, and its compres...
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