Desorption treatment method and device adopting flue gas for indirect heating

A treatment device and treatment method technology, applied in the field of oily pollutant treatment, can solve the problems of difficult control of new pollution sources in soil remediation engineering, insufficient understanding of different pollutants, and poor applicability of equipment, so as to reduce subsequent treatment equipment and avoid solid waste. Particle and dust pollution, effect of reducing input costs

Pending Publication Date: 2018-11-13
大庆百世环保科技开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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 investment costs, high energy consumption, low efficiency, insufficient understandi

Method used

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  • Desorption treatment method and device adopting flue gas for indirect heating
  • Desorption treatment method and device adopting flue gas for indirect heating
  • Desorption treatment method and device adopting flue gas for indirect heating

Examples

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Example Embodiment

[0018] Example 1

[0019] The desorption treatment method using flue gas indirect heating of the present invention has the following steps:

[0020] a. Crushing: crushing large pieces of oil-containing contaminants into fragments A, the particle size of fragment A is 10mm or 20mm or 30mm;

[0021] b. Hot washing: Put the fragments A obtained in step a into 60℃ water and stir for 10 minutes, the mass ratio of fragments A to water is 1:10 or 1:15 or 1:20, and oil, water and sludge B are separated to obtain The oil is transferred outside, and the water continues to be recycled;

[0022] c. Thermal desorption: Preheat the sludge B obtained in step b to 100°C or 150°C or 200°C, and then gradually heat it to 1000°C, with a heating rate of 260°C or 280°C or 300°C / h, to obtain oil and gas C and Ash D;

[0023] d. Oil and gas treatment: After removing solids from the oil and gas C obtained in step c, it is cooled and liquefied at 200°C or 250°C or 300°C, and then water and heavy oil are separa...

Example Embodiment

[0025] Example 2

[0026] Such as figure 1 As shown, a desorption treatment device using indirect heating by flue gas of the present invention is composed of a crusher 2, a thermal desorption device 7, and a separation device. The discharge end of the crusher 2 is connected to the screw conveyor 1. , The screw conveyor 1 is connected to the hot washing device 3, and the crusher 2 combines the functions of stirring and cutting to jointly crush the sludge; at the same time, a reciprocating screen is set at the outlet to screen debris such as stones with a particle size greater than 20mm. It is equipped with the function of self-cleaning the inner wall of the cabin. The blade is installed on the blade to clean the inner wall, so that the sludge sticking to the inner wall can be cleaned, ensuring that the motor will not be damaged due to excessive load; and the crusher 1 has a small footprint, fast processing speed and efficiency High, less affected by viscosity, and stable processin...

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Abstract

The invention provides a desorption treatment method and device adopting flue gas for indirect heating, and relates to the technical field of oily pollutant treatment. The method comprises five steps:crushing, thermal washing, thermal desorption, oil-gas treatment and ash slag treatment. A material is crushed firstly, oily pollutants are subjected to anaerobic heating by a thermal desorption device, and the pollutants can be volatilized or separated from a polluted medium; waste oil and waste residue of the device can be used as raw materials by a heating furnace for heat exchange, and the treated oil gas enters a subsequent gas treatment system, and is condensed, filtered and separated; treated ash slag is atomized, condensed and crystallized; a medium circulation pipeline of a condensing separator is provided with a power generator group; the power generator group adopts a high temperature medium for generating electricity, and can provides power to other devices while cooling the medium.

Description

technical field [0001] The invention relates to the technical field of treatment of oily pollutants, in particular to a desorption treatment method and device thereof using indirect heating of flue gas. 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 investment costs, high energy consumption, low efficiency, insufficient understanding of different pollutants, process Improper use of the parameter set of the device leads to the generati...

Claims

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Application Information

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IPC IPC(8): C10B57/04C10B57/00C10B47/00C10G1/00
CPCC10B47/00C10B57/00C10B57/045C10G1/00C10G1/002
Inventor 李继凤路学喜李海燕王亚娟
Owner 大庆百世环保科技开发有限公司
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