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.
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
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.
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.
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.
Smart Images

Figure CN224279908U_ABST