Crushing and desorption treatment method and device using indirect flue gas heating
The technology of a treatment device and a treatment method is applied in the field of oil-containing pollutant treatment, which can solve the problems of high energy consumption, low efficiency and high investment cost, and achieve the effects of improving heat exchange efficiency, reducing environmental pollution and saving energy consumption.
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Embodiment 1
[0015] A method for sanding and desorption treatment utilizing flue gas indirect heating, the steps of which are as follows:
[0016] a. Crushing: breaking the large oily pollutants into pieces A, and the pieces A have a particle size of 10mm or 20mm or 30mm;
[0017] b. Thermal desorption: Heat the fragment A obtained in step a, the heating temperature is gradually increased from 100°C to 1000°C, and the heating rate is 260°C / h or 280°C / h or 300°C / h to obtain oil gas B and ash Slag C, ash C is exported;
[0018] c. Oil and gas treatment: After the solids are removed from the oil and gas B obtained in step b, it is cooled and liquefied at 200°C or 250°C or 300°C, and then the water and heavy oil are separated and exported.
Embodiment 2
[0020] like figure 1As shown, a kind of sanding desorption treatment device utilizing flue gas indirect heating of the present invention is composed of a crusher 4, a thermal desorption device 2 and a separation device. The discharge end of the crusher 4 is connected to the screw conveyor Compared with machine Ⅰ3, crusher 4 combines the functions of stirring and cutting to carry out combined crushing of sludge; at the same time, a reciprocating screen is installed at the outlet to screen debris such as stones with a particle size larger than 20mm, and it is also equipped with the function of self-cleaning the inner wall of the cabin , Install the cleaning inner knife on the blade, so that the sludge stuck on the inner wall can be cleaned, and ensure that the motor will not be damaged due to excessive load; and it occupies a small area, the processing speed is fast, the efficiency is high, the viscosity is less affected, and the processing quality Stable; the discharge end of t...
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