Low-temperature smouldering pyrolysis device for sludge

Abstract

The invention discloses a low-temperature smouldering pyrolysis device for sludge and belongs to the technical field of sludge treatment. The low-temperature smouldering pyrolysis device comprises a pyrolyzing furnace body, wherein a hermetic feeder is arranged at the top of the pyrolyzing furnace body, a deslagging device is arranged at the bottom of the pyrolyzing furnace body, and a carbon residue treater is arranged at a slag tap of the deslagging device; a distributor which is located just below the hermetic feeder is arranged in the pyrolyzing furnace body, a plurality of gas sucking sets are arranged at bottoms of sidewalls of the pyrolyzing furnace body around the circumferential direction, each gas sucking set comprises a gas inlet and a gas outlet, the gas inlets are located above the gas outlets, the gas inlets and the gas outlets are located on contrary side faces of the pyrolyzing furnace body, an annular gas guide pipe is arranged on the pyrolyzing furnace body, each gasoutlet communicates with the annular gas guide pipe, and control valves are arranged corresponding to each gas inlet and each gas outlet; and a ventilating pipe is connected with the annular gas guidepipe and is connected with a dedusting and cooling mechanism. The low-temperature smouldering pyrolysis device for the sludge achieves that smouldering is thorough and is high in efficiency, and thequantity of extracted smouldering afterproducts is large.

Description

technical field

[0001] The invention belongs to the technical field of sludge treatment, in particular to a low-temperature smoldering pyrolysis device for sludge. Background technique

[0002] Urban and industrial sludge must be treated in an environmentally friendly manner, and cannot be directly incinerated. The current gasifier, fluidized bed, or power plant treatment is all high-temperature treatment, which will produce harmful substances such as dioxins and cause secondary pollution. . Chinese patent document CN207797070U discloses a micro-medium pressure smoldering treatment system for oily sludge, which mainly separates the gas-liquid two-phase through the gas-liquid cyclone separator; cools the steam through the cooler to improve the gas-liquid separation efficiency; The reactor reduces the emission of harmful gases such as sulfur and nitrogen to achieve the purpose of protecting the environment. Chinese patent document CN107842855A discloses a self-sustaining smo...

Examples

Embodiment Construction

[0022] The present invention is further described below in conjunction with the accompanying drawings.

[0023] like figure 1 As shown, the present invention comprises a pyrolysis furnace body 3, an airtight feeder 1 is provided at the top of the pyrolysis furnace body 3, a slagging device 6 is provided at the bottom of the pyrolysis furnace body 3, and a slag outlet of the slagging device 6 A carbon slag processor is equipped at the place; in the pyrolysis furnace body 3, a distributor 2 located directly below the airtight feeder 1 is provided, and a plurality of suction gas groups are arranged around the circumference at the bottom of the side wall of the pyrolysis furnace body 3, so that Said suction gas group comprises an air inlet 41 and an air outlet 42, and said air inlet 41 is positioned above the air outlet 42 and the air inlet 41 and the air outlet 42 are positioned on the opposite sides of the pyrolysis furnace body 3, during pyrolysis The furnace body 3 is provide...

technical field

[0001] The invention belongs to the technical field of sludge treatment, in particular to a low-temperature smoldering pyrolysis device for sludge. Background technique

[0002] Urban and industrial sludge must be treated in an environmentally friendly manner, and cannot be directly incinerated. The current gasifier, fluidized bed, or power plant treatment is all high-temperature treatment, which will produce harmful substances such as dioxins and cause secondary pollution. . Chinese patent document CN207797070U discloses a micro-medium pressure smoldering treatment system for oily sludge, which mainly separates the gas-liquid two-phase through the gas-liquid cyclone separator; cools the steam through the cooler to improve the gas-liquid separation efficiency; The reactor reduces the emission of harmful gases such as sulfur and nitrogen to achieve the purpose of protecting the environment. Chinese patent document CN107842855A discloses a self-sustaining smo...

Examples

Embodiment Construction

[0022] The present invention is further described below in conjunction with the accompanying drawings.

[0023] like figure 1 As shown, the present invention comprises a pyrolysis furnace body 3, an airtight feeder 1 is provided at the top of the pyrolysis furnace body 3, a slagging device 6 is provided at the bottom of the pyrolysis furnace body 3, and a slag outlet of the slagging device 6 A carbon slag processor is equipped at the place; in the pyrolysis furnace body 3, a distributor 2 located directly below the airtight feeder 1 is provided, and a plurality of suction gas groups are arranged around the circumference at the bottom of the side wall of the pyrolysis furnace body 3, so that Said suction gas group comprises an air inlet 41 and an air outlet 42, and said air inlet 41 is positioned above the air outlet 42 and the air inlet 41 and the air outlet 42 are positioned on the opposite sides of the pyrolysis furnace body 3, during pyrolysis The furnace body 3 is provide...

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