Cracking evaporation type oil sand and oil sludge treatment device

Abstract

The invention relates to oil sludge treatment equipment for an oilfield oil producing region, in particular to a cracking evaporation type oil sand and oil sludge treatment device. The device comprises a cracking evaporation tank, a fractionating tower, a condenser and an oil-water separation tank, wherein the cracking evaporation tank has vertical structure, the tank body is provided with a heat exchange interlayer encircling the inner wall of the tank body, heat conducting oil communicated with a heating oil furnace is filled in the heat exchange interlayer, a stirrer is arranged in the cracking evaporation tank, a power mechanism of the stirrer is arranged at the top of the tank, one side of the tank top is provided with a feeding hole with a sealing cover, the other side of the tank top is provided with an exhaust port, the exhaust port is connected with the fractionating tower through a gas pipeline, and the bottom of the cracking evaporation tank is provided with a spiral slag discharger. Oil sand and oil sludge enter the cracking evaporation tank to realize dynamic heating, dynamic evaporation and dynamic slag discharge, so the device is favorable for the materials to absorb heat to evaporate oily water; and the cracking evaporation tank is heated by circulating heat conducting oil, the heating is direct, uniform, safe and easy to control, and the problem of non-uniform heat conduction of the materials in the evaporation process is solved.

Description

technical field [0001] The invention relates to equipment for treating sewage sludge in an oil production area of ​​an oil field, in particular to a cracking and evaporating oil sand oil sludge treatment device. Background technique [0002] At present, the treatment methods of oil sludge reported in the literature include biological treatment, freezing and thawing treatment, solvent extraction treatment, coking treatment, etc., which generally have high energy consumption, high treatment cost, secondary environmental pollution, long time, and occupied area. Large, low recycling rate and other problems, the requirements for the composition of the sludge are too high, especially when there are too many impurities and the sludge is solidified and agglomerated, it is basically difficult for the separation device to complete the evaporation of oil and water. Contents of the invention [0003] The invention aims to solve the above-mentioned problems existing in the existing s...

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Problems solved by technology

[0003] The present invention aims to solve the above-mentioned problems existing in the existing sludge treatment equipment, and provides a cracking and evaporative oil sand oil sludge treatment device that is safe and practical, has a large processing capacity and is suitable for industrial production

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