Movable integrated device and method for oil sludge pyrolysis resource treatment

Abstract

The invention discloses a movable integrated device for oil sludge pyrolysis resource treatment. The movable integrated device comprises a closed bin, wherein the closed bin supplies materials to a drying chamber through a sealing feeding device by passing through a sealing transition bin; the water vapor and the waste gas generated by the drying in the drying chamber are supplied as air supply to a combustion chamber through a washing tower, a waste gas demisting and separation device and an induced draft fan; the oil sludge dried in the drying chamber is supplied to a pyrolysis chamber for pyrolysis; the pyrolysis gas generated by the pyrolysis in the pyrolysis chamber is supplied as a fuel to the combustion chamber through a backdraft device or enters to a separation and condensation system to recycle light oil content; the residue generated by the pyrolysis in the pyrolysis chamber is fed into a residue storage box through a discharge device; the smoke generated in the combustion chamber is supplied to a heat exchanger with a dust removal function; the hot water generated in the heat exchanger is supplied to a feed system to heat the feeding materials or supply the materials outside; the smoke reaches the standard through a purifying system and is discharged outside. The invention also provides a corresponding treatment method which can realize reducing, harmless and clean treatment as well as resource economic recycling of the oil sludge, and is of great significance to the treatment of disperse sludge.

Description

technical field [0001] The invention belongs to the technical field of oily sludge treatment, relates to its energy-based disposal, and in particular to an integrated device and method for mobile oily sludge pyrolysis resource-based disposal. Background technique [0002] A large amount of oil sludge produced in the oil field industry in the production process of crude oil extraction, oil and gas gathering and transportation, and sewage treatment in refinery and chemical plants has become an important problem faced by the oil field industry. According to statistical data, in 2014, my country's annual oil sludge production has reached about 4 million tons, while domestic oily sludge has reached a low level of environmental protection management and harmless treatment, only 50-60%. The composition of oily sludge is complex; oil-in-water, water-in-oil and suspended solids form a stable suspended emulsion system with high viscosity and strong stability; it contains polycyclic ar...

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Problems solved by technology

[0003] At present, domestic oily sludge treatment methods can be mainly divided into methods for the purpose of reduction and recovery of petroleum resources, such as extraction, washing, cracking, etc. to separate from the inorganic components in oil sludge, recover petroleum resources, and achieve the purpose of reduction at the same time , this method generally has the characteristics of high comprehensive cost, large equipment investment, low recovery rate, serious secondary pollution, poor economy, etc., and is difficult to promote on a large scale; another traditional treatment method is mainly for the purpose of harmlessness, such as filling Buried, microbial decomposition, incineration, drying and pyrolysis, etc., the crude oil cannot be recycled in this method, the equipment investment is large, and there are defects such as secondary pollution

Oil sludge pyrolysis is a clean heat treatment of oil sludge in an oxygen-free atmosphere. It is used as a new treatment technology that can replace incineration at home and abroad. However, the oil sludge pyrolysis process is not perfect. It is generally used for the desorption of inorganic matter and oil, and the economic cost of operation is high. ; At the same time, there is a lack of integrated processes and equipment for the characteristics of sludge dispersion, complex geographical environment, and small quantities. The research and development of mobile distributed sludge disposal processes and integrated equipment has the potential for sludge disposal on the basis of harmless disposal of sludge , to achieve resource recycling, which has important practical significance for the development of the oilfield industry

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