Efficient indirect thermal desorption device

Abstract

The invention discloses an efficient indirect thermal desorption device, and belongs to a polluted soil remediation device. The efficient indirect thermal desorption device comprises a sledge body, wherein a material feeding hopper, a material feeding air lock, an outer barrel, a material discharging air lock, a motor, a combustor, a chimney, a spraying tower, an active carbon adsorption tank, a draught fan, an oil water separator, an air cooler and a water treatment device, wherein a heat preservation shell sleeves the outer barrel; a shaftless winch is arranged in the outer barrel; a combustion pipe is inserted into the shaftless winch; the outlet of the material feeding hopper is communicated with the inlet of the material feeding air lock; the outlet of the material feeding air lock is communicated with the material inlet above the right end of the outer barrel; the material outlet below the left end of the outer barrel is communicated with the inlet of the material discharging air lock. The efficient indirect thermal desorption device has the advantages of high treatment capacity, high pollutant removal rate, high thermal efficiency, good sealing property, smaller size and convenience in transportation and mounting when treating organic polluted soil, mercury polluted soil or petroleum polluted soil.

Description

Technical field: [0001] The invention relates to a repairing device for polluted soil, in particular to a high-efficiency indirect thermal desorption device capable of treating organic polluted soil, mercury polluted soil or petroleum polluted soil with a boiling point below 600°C. Background technique: [0002] Soil is an important natural resource for human survival and an important part of the human ecological environment. With the development of society, technology and economy, people's living standards and health levels are constantly improving, which puts forward higher requirements for the realization of a green environment, and the control of environmental pollution has become an important issue in urban construction. [0003] With the adjustment of the industrial structure, many industrial enterprises in the main urban areas of many cities have closed down or relocated, leaving behind a large amount of highly polluted soil, including a large amount of organic pollut...

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Problems solved by technology

[0010] The above three patents are partial improvements made on the existing thermal desorption technology. The patent with the publication number CN103341486A uses secondary energy electricity as the energy source for heating, which has the disadvantages of high disposal cost and difficult sealing of the drum.

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