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Oil-containing pollutant treatment method performing indirect heating using heat-conducting oil and device thereof

A pollutant treatment and treatment device technology, which is applied in the field of oily pollutant treatment, can solve the problems of difficult control of new pollution sources in soil remediation projects, insufficient understanding of different pollutants, and poor applicability of equipment, so as to avoid internal coking and solid waste. Particle and dust contamination, effect of accelerated pyrolysis

Pending Publication Date: 2018-09-14
大庆百世环保科技开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the thermal desorption technology for treating pollutants has been implemented worldwide, there are still the following problems: poor applicability of equipment, high operating costs, insufficient understanding of different pollutants, and improper use of parameters of process equipment leading to other problems. The production of by-products, the difficulty of controlling new pollution sources such as noise, dust, and dust pollution in soil remediation projects, etc.

Method used

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  • Oil-containing pollutant treatment method performing indirect heating using heat-conducting oil and device thereof
  • Oil-containing pollutant treatment method performing indirect heating using heat-conducting oil and device thereof
  • Oil-containing pollutant treatment method performing indirect heating using heat-conducting oil and device thereof

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Embodiment 1

[0019] A method for treating oily pollutants utilizing heat transfer oil indirect heating of the present invention, the steps are as follows:

[0020] a. Crushing: breaking the large oily pollutants into pieces A, and the pieces A have a particle size of 10mm or 20mm or 40mm;

[0021] b. Hot washing: Put the fragment A obtained in step a into 60°C water and stir for 10 minutes or 15 minutes or 20 minutes. The mass ratio of fragment A to water is 1:10 or 1:15 or 1:20. Oil, water and Sludge B is separated, the obtained oil is exported, and the water is returned to continue to be recycled;

[0022] c. Thermal desorption: Preheat the oil sludge B obtained in step b with heat transfer oil at 100°C or 150°C or 200°C, and then heat it to 400°C with negative pressure rotation for 1 or 2 hours, rotating at a speed of 10 rpm , the pressure is controlled at -150KPa~150KPa, and oil gas C and ash D are obtained;

[0023] d. Oil and gas treatment: After the solids are removed from the oil...

Embodiment 2

[0026] Such as figure 1As shown, a treatment device for oily pollutants using heat transfer oil indirect heating of the present invention is composed of a crusher 2, a thermal desorption device 8 and a separation device. The outlet end of the crusher 2 is connected to a screw conveyor 1, and the screw conveyor Conveyor 1 is connected to the inlet end pipeline of hot washing device 4, and the material is crushed by crusher 2 and then spirally transported to hot washing device 4. Hot washing device 4 uses high temperature to separate the oil in oily sludge for the first time. 4. It is equipped with a heating device, a stirring device and a dosing device inside. The heating device heats the raw materials to promote the separation of the oil phase; a certain amount of water is added to the tank to facilitate stirring, and then the demulsifier and flocculation are added by the dosing device After the solvent is added, the oil phase separation is further promoted, and the separated ...

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Abstract

The invention provides an oil-containing pollutant treatment method performing indirect heating using heat-conducting oil and a device thereof, and relates to the technical field of oil-containing pollutant treatment technologies. The method comprises five steps of breaking, hot washing, thermal desorption, oil-gas treating and ash treating. Breaking and hot washing are firstly conducted on oil-containing pollutants, then thermal desorption is conducted on solid pollutants on which initial oil removing is conducted, heat exchange is conducted by a thermal desorption device using the heat-conducting oil used for heating a heating furnace as a medium to heat the oil-containing pollutants in the absence of oxygen, the pollutants are volatilized or separated from pollution mediums, and the ultra-clean treatment of the oil-containing pollutants is achieved; wasted oil and residual of the device can be adopted as raw materials of the heating furnace to reduce operation cost; oil and gas treated by the thermal desorption device enter a subsequent gas treating system to further perform condensing, filtering and separating, atomizing condensing crystallizing processing is conducted on treated ashes, the ashes can be adopted as excellent raw material of construction materials such as floor bricks, hollow bricks and the like, and solid particle and dust pollution is avoided.

Description

technical field [0001] The invention relates to the technical field of treatment of oily pollutants, in particular to a method and device for treating oily pollutants indirectly heated by heat transfer oil. Background technique [0002] At present, oily pollutants are a kind of solid-liquid mixed waste rich in mineral oil produced in the process of petroleum exploration, exploitation, storage, transportation and refining. Whether oily pollutants enter the soil, oceans, or lakes, they will cause serious pollution to the ecological environment or water sources, and effective and sustainable governance is urgently needed. Although the thermal desorption technology for treating pollutants has been implemented worldwide, there are still the following problems: poor applicability of equipment, high operating costs, insufficient understanding of different pollutants, and improper use of parameters of process equipment leading to other problems. The generation of by-products, the n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G1/00C10G1/02B09B3/00
CPCC10G1/00C10G1/002C10G1/02B09B3/00C10G2300/1003C10G2300/4081C10G2300/44B09B2101/02B09B3/40
Inventor 路学喜王亚娟李海燕李琳
Owner 大庆百世环保科技开发有限公司
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