Device and system for rotary indirect thermal desorption

Abstract

The invention discloses a device and a system for rotary indirect thermal desorption. The device comprises a kiln head, a kiln tail, a rotary cylindrical shell, a combustion chamber, a feeding port, adischarging port and a chimney, the kiln head, the rotary cylindrical shell and the kiln tail are connected sequentially, the combustion chamber sleeves the rotary cylindrical shell, the chimney is arranged on the combustion chamber, the feeding port is arranged on the kiln head, the discharging port is arranged on the kiln tail, the kiln head is further provided with a gas discharging port, a plurality of combustors are arranged at the bottom of the combustion chamber, the rotary cylindrical shell is divided into zones according to the attribute change of a material along the process, and angles of welding of a plurality of lifting plates welded to the inner wall of the rotary cylindrical shell are different in different zones. The invention also discloses the system comprising the rotary indirect thermal desorption device. The device and the system have the advantages of high heating temperature, good thermal desorption effect, heat release in the combustion of non-condensable gas,and realization of the recycling of energy.

Description

technical field [0001] The invention relates to the field of soil restoration, in particular to a rotary indirect thermal desorption device and system. Background technique [0002] Due to fossil fuel combustion, oil spills, industrial sewage and sludge agricultural use, industrial and agricultural solid waste stacking, and the widespread use of pesticides, many types of organic pollutants directly or indirectly enter the soil environment, and are absorbed by soil particles and remain in the soil for a long time middle. Organic substances polluting soil are divided into natural organic substances and synthetic organic substances, usually the latter, such as phthalates, polycyclic aromatic hydrocarbons, organochlorine, organophosphorus pesticides, etc. Many of these organic substances are carcinogenic, teratogenic or carcinogenic Mutant substances remaining in the soil will not only reduce crop yields or even fail them, but also enter the food chain through animals and plant...

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies of the prior art, to provide a rotary indirect thermal desorption device and system, which is suitable for materials with low liquid content and high looseness, with large processing capacity, high heating temperature and good repair effect. Good, to achieve efficient remediation of organically polluted soil and meet the demand for energy reuse

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