Oil-containing sludge self-heat-supply anaerobic pyrolysis equipment, and pyrolysis method thereof

Abstract

The invention belongs to the technical field of oil-containing sludge anaerobic pyrolysis, energy saving, consumption reducing, and deodorizing, and especially relates to an oil-containing sludge self-heat-supply anaerobic pyrolysis equipment, and a pyrolysis method thereof. The oil-containing sludge self-heat-supply anaerobic pyrolysis equipment comprises a material mixing conveyer used for conveying oil-containing wet sludge and oil residue; an outlet of the material mixing conveyer is connected with a rotary pyrolysis furnace; one outlet of the rotary pyrolysis furnace is connected with a direct combustion incinerator, and another outlet of the rotary pyrolysis furnace is connected with a sealed surge bin; an outlet of the sealed surge bunker is connected with rotary unloaders and a venturi conveyor successively; an outlet of the venturi conveyor is connected with a bag-type dust collector; the lower part of the bag-type dust collector is connected with a first rotary unloader and a second rotary unloader. According to the pyrolysis method, high temperature flue gas needed by anaerobic pyrolysis of oil-containing wet sludge in the rotary pyrolysis furnace is generated in the direct combustion incinerator via combustion of oil gas obtained via evaporation of the oil-containing wet sludge, self-supply is realized, no fuel supply is needed, and energy saving is realized.

Description

technical field [0001] The invention relates to the technical fields of anaerobic pyrolysis of oily sludge, energy saving and consumption reduction, and deodorization, in particular to a self-heating anaerobic pyrolysis equipment and a pyrolysis method for oily sludge. Background technique [0002] Oily sludge (especially sludge produced by oil production enterprises, oil refining enterprises, coking enterprises, etc.) generally contains oil ~ 50% (wt), water content ~ 5% (wt), slag ~ 45% (wt); its main physical The properties are: large volume, high viscosity, high boiling point of oil, not easy to volatilize, etc. [0003] Existing oily sludge is mostly treated with drying equipment. After drying, the tail gas with odor and high humidity at ~100 °C is mostly dusted by a cyclone separator and then discharged into a boiler for incineration and deodorization. The advantage of this process is to reduce the amount of oily sludge. , the disadvantages are: ①After the boiler inci...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the defect of non-energy-saving oily sludge treatment equipment in the prior art, the present invention provides an energy-saving and emission-reducing oily sludge self-heating anaerobic pyrolysis equipment and its pyrolysis method

Images