A pretreatment device for acid / alkali liquid hazardous waste

By introducing a stirring mechanism and a pH meter into the hazardous waste pretreatment unit, the problem of uneven stirring was solved, and uniform mixing of acid and alkali solutions was achieved, thereby improving the efficiency and safety of the neutralization reaction.

CN224279908UActive Publication Date: 2026-05-26安徽海螺环保集团有限公司

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
安徽海螺环保集团有限公司
Filing Date
2025-05-26
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing hazardous waste pretreatment devices are unable to efficiently and fully agitate waste liquids, resulting in uneven mixing of acid and alkali solutions, prolonged neutralization time, reduced treatment efficiency, and potential safety hazards.

Method used

A pretreatment device including a stirring mechanism was designed. The stirring rod and stirring sleeve driven by a motor are used to stir in both forward and reverse directions to ensure that the acid and alkaline solutions are evenly distributed in the waste liquid. The bottom residue of the tank is cleaned by a scraper and a pH meter is equipped to monitor the pH value in real time.

Benefits of technology

This method achieves uniform distribution of acid and alkali solutions in waste liquid, improves the efficiency and uniformity of neutralization reaction, shortens treatment time, and enhances the safety and stability of the device.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a pretreatment device for acid / alkali liquid hazardous waste, relating to the field of hazardous waste pretreatment technology. It includes a treatment tank with a discharge pipe connected to its bottom and a valve on the discharge pipe. The treatment tank contains a stirring mechanism for mixing the liquid hazardous waste. By using a motor to drive a first and a second stirring blade to stir the waste liquid in both directions, the device ensures uniform distribution of the acid / alkali solution within the waste liquid, avoiding localized excessively high or low acid / alkali concentrations. This improves the efficiency and uniformity of the neutralization reaction, accelerates the neutralization process, shortens treatment time, and increases treatment efficiency.
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