Oily sludge extraction-separation-drying-incineration integrated process system

Abstract

The invention relates to an oily sludge extraction-separation-drying-incineration integral process system. An extraction system comprises a dosing port, a water filling port and a pressure-resistant stirring tank. A separation system comprises a first-stage separator, a second-stage separator, an oil-water separator and the like. A drying system comprises a drying heat exchanger, an oily sludge conveyor belt and the like. An incineration system comprises a fluidized bed incinerator, a feeder, a first-stage cyclone separator, a return feeder, a primary draught fan, a secondary draught fan, a fluidized air blower, a second-stage cyclone separator, a bag-type dust collector, an induced draft fan, a chimney, a gas-gas heat exchanger and the like. Oily sludge is subjected to high-temperature and high-pressure extraction and separation to obtain an oil product which can serve as a secondary energy source. Oily sludge residues obtained through separation and coal are mixed and sufficiently burned under the action of combustion air so as to provide energy for industrial production. Burned flue gas is subjected to cooling and denitration treatment to achieve harmful discharging. Through theprocess, reduction, recycling and harmless comprehensive utilization of the oily sludge are achieved.

Description

technical field [0001] The invention relates to an integrated process system of oily sludge extraction-separation-drying-incineration, especially the oily sludge produced in an oil refinery is dried and incinerated after extraction pretreatment to realize the reduction of waste resources and the comprehensive utilization of resources crafting system. Background technique [0002] With the increasing development of the global economy, the demand for oil resources in countries around the world is also increasing. However, as a kind of fossil energy, petroleum will produce a large amount of oily sludge during the process of exploitation, transportation, storage and processing, causing serious environmental pollution. Oily sludge is a hazardous waste with recovery value in the petroleum and petrochemical industry. It is mainly composed of water, sediment and hydrocarbon organic matter. They mainly come from grease traps, flotation tanks, crude oil dehydration tanks, oil storage...

AI Technical Summary

Problems solved by technology

These oily sludges generally contain hydrocarbons, benzene series, phenols, and anthracenes, and are accompanied by stench and toxicity. If they are in direct contact with the natural environment, they will cause great pollution to soil, water bodies, and vegetation, and also mean that waste of oil resources

[0003] The resource utilization of oily sludge started relatively late in my country, and there is still no mature and effective oily sludge treatment technology. Tons of oily sludge are simply stacked and filled in the open air because they have not been processed and utilized in a timely manner. Buried, which not only wastes precious resources, but also causes great pollution to the local environment

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