Slurrying and preheating device for high-dryness sludge

Abstract

The invention discloses a slurrying and preheating device for high-dryness sludge, comprising a slurrying device body, wherein the slurrying device body comprises a plurality of horizontal-type structures with parallel stirring shafts and steam guide-in tubes, the horizontal-type structures are flatly paved in the slurrying device body, and the steam guide-in tubes are located below the horizontal-type structures; stirring paddle plates are arranged on the parallel stirring shafts of the horizontal-type structures, and the stirring paddle plates oppositely move during stirring; the sludge passes through the steam guide-in tubes, and thermal hydrolysis is performed on the sludge below the slurrying device body; and the sludge is stirred by the stirring paddle plates under the action of the thermal hydrolysis of the steam guide-in tubes to form slurryed sludge, and the slurryed sludge is moved forwards. The slurrying and preheating device for high-dryness sludge is simple in structure and convenient in slurrying process; and the sludge is stirred via the thermal hydrolysis of mass sludge, so as to obtain the adequately-slurryed sludge.

Description

technical field [0001] The invention relates to the field of sludge slurrying, in particular to a slurrying and preheating device for high dryness sludge. Background technique [0002] Existing sludge mixing systems, such as the utility model patent No. 200720069024.8, disclose a kind of sludge and garbage mixing solidification system, including a mixing tank, a material inlet, a material outlet, and a number of stirring shafts are arranged in the mixing tank. A plurality of stirring arms are fixed on the stirring shaft, at least one stirring blade is arranged at the front end of each stirring arm, and side blades having the same number as the stirring blades are arranged at the rear end of each stirring arm. [0003] This kind of sludge and garbage mixed solidification system, that is, the sludge mixing system, has the following disadvantages because there is no steam pipe installed: the quality of the high-dryness sludge is relatively poor, and the mixing equipment is eas...

AI Technical Summary

Problems solved by technology

[0003] This kind of sludge and garbage mixed solidification system, that is, the sludge mixing system, has the following disadvantages because there is no steam pipe installed: the quality of the high-dryness sludge is relatively poor, and the mixing equipment is easy to be damaged during mixing, and the mixing process It is easy to form clogging. Since there is no continuous supply of high-temperature hot water, high-dryness sludge is not easy to be slurried in the mixer. If the mixer is used for a long time, the mixing system will soon be paralyzed and damaged. The quality of the sludge slurry stirred out during the process is not very high

[0005] 1. The sludge is not fully stirred during stirring, and the lumps are more serious;

[0006] 2. The sludge cannot be completely slurried when stirring, and the stirring is not complete and not stable enough

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