A short-process oil sludge treatment system

Abstract

The invention discloses a short-process oily sludge treatment system which comprises a first ultrasonic cleaning device, a first sedimentation device, a second ultrasonic cleaning device, a second sedimentation device, a third sedimentation device, an overlap dewatering machine, a gravitational sedimentation oil separation tank (906), an oil storage tank (907) and a high-temperature water tank. The short-process oily sludge treatment system is characterized in that a tank bottom oily sludge storage pool (101) is used for storing tank bottom oily sludge, to-be-treated materials only can be provided for the short-flow oily sludge treatment system when short-process oily sludge treatment system starting requirements are met by the oily sludge quantity of the tank bottom oily sludge, and double-cam pumps are arranged at the bottom of the tank bottom oily sludge storage pool (101). The short-process oily sludge treatment system has the advantages that the shortcoming of blockage due to oily sludge can be effectively overcome, and the oil and water separation efficiency further can be enhanced; the failure rate of water distribution pipelines can be greatly lowered while basic oily sludge treatment requirements are met.

Description

technical field [0001] The invention belongs to the technical field of environmental protection, and in particular relates to a short-flow sludge treatment system. Background technique [0002] A large amount of black solid and semi-solid waste containing oil will be produced in the process of oil exploitation, gathering and transportation, refining and oily sewage treatment, which is called oil sludge, and its main components are crude oil, mud and water. The size of solid particles in oil sludge can range from less than microns to several inches, most of which are between 1 and 100 microns. The composition of oil depends on the type of crude oil, refinery structure and operating conditions. The composition of sludge may change over time. In addition to a large amount of aged crude oil, waxy, and colloidal substances, the oil sludge contains a large amount of toxic and harmful substances such as benzene series, phenols, green onions, flowers, polychlorinated biphenyls, and ...

AI Technical Summary

Problems solved by technology

In addition to a large amount of aged crude oil, waxy, and colloidal substances, the oil sludge contains a large amount of toxic and harmful substances such as benzene series, phenols, green onions, flowers, polychlorinated biphenyls, and dioxins; in addition, the oil sludge also contains a large number of pathogenic bacteria , parasites, if not treated reasonably and effectively, it will not only waste oil resources, but also cause serious pollution to the environment

[0003] At present, there are various technologies for treating oily sludge, and each method has its own advantages, disadvantages and scope of application. For example, solvent extraction can recover most of the oil resources in oily sludge, but at the same time, there are long processes, complicated processes, and high treatment costs. Disadvantages: The biological treatment method has no secondary pollution, but the treatment period is long; the chemical demulsification method requires additional demulsifiers and heating for heavily emulsified oil sludge, and it is also difficult to treat crude oil; the solid-liquid separation method is suitable for oily sludge with high oil content and serious pollution The recovery rate is low; the incineration method can reduce the pollution of harmful substances in the sludge to the environment, but the process is complicated, the cost and operating expenses are high, crude oil cannot be recovered, and the SO2, CO and dust produced by incineration will cause secondary pollution to the air; With the increasingly stringent and perfect environmental protection regulations, reduction, recycling and harmless treatment of oily sludge technology will become an inevitable trend in the development of oily sludge treatment technology

[0004] The commonly used oil sludge treatment system is characterized by a simple structure, but due to the working characteristics of the oil sludge treatment system, the oil sand is often deposited at the bottom of the cleaning tank, which is easy to block the pipeline, and once the pipeline is blocked, it is not easy to find, because Most of the current pipeline turns have dead angles, which are very difficult to clean up and affect the normal operation of the sludge treatment system

Images