A kind of dewatered sludge dry fermentation treatment equipment and method

By using a rotary diafiltration mechanism and an electric rotary stirring mechanism in the dry fermentation treatment equipment of dehydrated sludge, the problems of poor leachate recycling and poor sludge flowability are solved, efficient leachate recovery and full contact between bacterial fluid and sludge are achieved, and the fermentation effect is improved.

CN118833986BActive Publication Date: 2025-03-28CHANGSHA KAIMAI NEW ENERGY TECH CO LTD
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Patent Information

Application Number
CN202411222430.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-09-02
Publication Date
2025-03-28
Estimated Expiration
2044-09-02

AI Technical Summary

Technical Problem

In the existing dry fermentation treatment equipment for dehydrated sludge, the leachate recycling effect is not good enough, and the fixing of the leachate plate causes poor fluidity of the sludge, which is easy to block the filter holes, affecting the leachate recovery efficiency, and some bacterial fluids cannot come into contact with the sludge, affecting the fermentation effect.

Method used

A dry fermentation treatment equipment for dehydrated sludge including a fermentation tank and a bacterial culture acclimation tank is designed. The rotary diafiltration mechanism and an electric rotary stirring mechanism are used. Through the linkage rotary parts and the reciprocating limit switch mechanism, the diafiltration plate is deflected and swung in the fermentation tank, which promotes the flow of leachate and the servo motor to rotate, ensuring that the sterilization fluid and the sludge are in full contact.

Benefits of technology

The leachate recycling efficiency is improved, the risk of sludge blocking filter holes is avoided, the bacterial fluid is fully in contact with the sludge, the fermentation effect is improved, and the operation process is simplified through automated control.

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Abstract

The present invention discloses a dewatered sludge dry fermentation treatment equipment and method, and relates to the technical field of dewatered sludge dry fermentation treatment. The treatment equipment includes a fermentation tank and a strain acclimation tank, wherein the strain acclimation tank is arranged at the bottom of the fermentation tank, and further includes: a rotary percolation mechanism, an electric rotary stirring mechanism and a reciprocating limit switch mechanism, wherein the rotary percolation mechanism includes a percolation plate and a linkage rotating member, wherein the percolation plate is arranged in cooperation inside the fermentation tank, and the linkage rotating member is arranged at one end of the fermentation tank. The output spindle of the servo motor of the present invention is connected to a swivel by a sliding rod, so that the swivel drives the percolation plate in the fermentation tank to move, and under the action of two limit blocks and a forward and reverse control stroke switch, the percolation plate is continuously driven to swing back and forth within a certain range, so that the sludge falling on the percolation plate is convenient to discharge the percolation liquid, and the moving percolation plate can accelerate the falling of the percolation liquid, thereby improving the recycling efficiency of the percolation liquid.
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