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Method and equipment for oily sludge pyrolysis desorption

A technology of oil sludge and attached equipment, which is applied in the field of oil sludge thermal desorption and desorption, can solve the problems of blocked pipelines and easy condensation of oil components, and achieve the effects of preventing condensation, increasing the outlet temperature, and reducing the probability of condensation

Pending Publication Date: 2020-07-03
ZHE JIANG ECO ENVIRONMENTAL TECH CO LTD
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  • Description
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Problems solved by technology

On the other hand, the temperature of the oil-containing desorption gas when it is exported from the thermal desorption and desorption furnace is about 300°C, coupled with the heat dissipation and cooling of the desorption gas pipeline, the oil is easily condensed, and the pipeline is seriously blocked.

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  • Method and equipment for oily sludge pyrolysis desorption

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Embodiment 1

[0019] Such as figure 1 As shown, the oil sludge thermal desorption and desorption equipment of the present invention includes a combustion chamber 1, a thermal desorption and desorption furnace 2, the heating flue gas is provided by the combustion chamber 1, and the thermal desorption and desorption furnace 2 is connected with a desorption gas pipeline 4 and tail gas The pipe 3 and the desorption gas pipe 4 are provided with a casing 5, and the two ends of the casing 5 are connected with the tail gas pipe 3 so that the flue gas tail gas can heat the desorption gas pipe 4. A heat exchanger 7 is arranged on the tail gas pipeline 3, and the combustion-supporting air of the combustion chamber 1 is preheated by the heat exchanger 7, and the running route of the combustion-supporting air is indicated by a dotted line in the figure. The tail gas pipeline 3 is connected with a back-mixing flue 8, and the running route of the back-mixing flue 8 is indicated by a thin solid line in the...

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Abstract

The invention belongs to the technical field of pyrolysis desorption, and specifically relates to a method and equipment for oily sludge pyrolysis desorption. The method for oily sludge pyrolysis desorption comprises the following steps: allowing heating flue gas to be provided as a heat source for a pyrolysis desorption furnace, then allowing oil-containing desorption gas to be led out from the pyrolysis desorption furnace and then enter a desorption gas pipeline, allowing heated flue gas to be led out from the pyrolysis desorption furnace to become flue gas tail gas to enter a tail gas pipeline, allowing the tail gas pipeline to communicate with a spray tower, controlling a gas inlet temperature to be 850 DEG C or above when the heated flue gas enters the pyrolysis desorption furnace, controlling a gas outlet temperature to be 600 DEG C or above when the flue gas tail gas is led out of the pyrolysis desorption furnace, heating the desorption gas pipeline through the flue gas tail gas, and carrying out spray quenching on the flue gas tail gas to 200 DEG C or below. According to the invention, the smoothness of the desorption gas pipeline is ensured; meanwhile, the treatment efficiency of the pyrolysis desorption furnace is improved; and the generation probability of dioxin is reduced.

Description

technical field [0001] The invention belongs to the technical field of thermal desorption and desorption, in particular to a method and equipment for thermal desorption and desorption of oil sludge. Background technique [0002] Thermal desorption and desorption technology is an emerging oil sludge treatment technology, which is widely used in the treatment of oil sludge. In the prior art, the heated flue gas is generally used to provide heat source for the thermal desorption furnace. The oil-containing desorption gas is exported from the thermal desorption desorption furnace and then enters the desorption gas pipeline. After being sprayed and washed to cool down, the non-condensable gas is introduced into the combustion chamber and is harmless at high temperature. After chemical treatment, the non-condensable gas after high-temperature treatment becomes part of the high-temperature heating flue gas. The heated flue gas is exported from the pyrolysis and desorption furnace ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/04C02F11/10
CPCB01D53/0438B01D2257/2064B01D2258/0283C02F11/10Y02W10/40
Inventor 杜联盟赵维维于立松高宇乐车磊
Owner ZHE JIANG ECO ENVIRONMENTAL TECH CO LTD
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