Thermal desorption device for organic polluted soil

Abstract

The invention discloses a thermal desorption device for organically polluted soil, which comprises a crushing device, a conveying device, a heating device and a gas processing device, wherein the crushing device is connected with the conveying device through a blanking pipe; the conveying device is connected with the gas processing device through a plurality of groups of first connecting pipes; the heating device heats the conveying device; the crushing device is fixedly connected with the top of a base through a connecting rod; a cooling chamber is formed in the base; the heating device is arranged in the cooling chamber; the bottom of the left side and the right side of the cooling chamber are respectively connected with a drain pipe and a water inlet pipe; and the right side of the conveying device is connected with a discharge pipe; according to the invention, the soil is preheated by an electric heating block, and the soil is crushed by a crushing assembly and a crushing roller, so that the crushing effect is good, and the thermal desorption effect of the soil is better; and at the same time, cooling water can be injected into the cooling chamber through a water inlet pipe after the use is completed, so that the cooling speed of the heating device is accelerated.

Description

technical field [0001] The invention relates to the technical field of layer polluted soil treatment, in particular to a thermal desorption device for organic polluted soil. Background technique [0002] As a non-combustion technology, thermal desorption converts pollutants from one state to another by heating, so that the pollutants can be volatilized without chemical reactions such as oxidation and decomposition. The pollutants can be treated in a wide range, The soil can be reused after remediation, especially for chlorinated organic substances. The non-oxidative combustion treatment method can avoid the formation of dioxins, and is widely used in the remediation of soil contaminated by organic pollutants. The thermal desorption devices currently on the market mainly have the following disadvantages: [0003] Although the thermal desorption devices on the market will be equipped with pulverization components to pulverize the soil, the pulverization effect is relatively g...

AI Technical Summary

Problems solved by technology

[0003] Although the thermal desorption devices on the market will be equipped with pulverization components to pulverize the soil, the pulverization effect is relatively general, which often leads to thermal desorption of large pieces of soil, which takes a long time and the desorption effect is poor. , and the soil that needs to be thermally desorbed generally has a certain degree of moisture. When the soil is crushed, the soil is easy to adhere to the fractional components, causing blockage, and cleaning is very troublesome. It takes a long time to cool down after use, making it inconvenient to use

Images