A salinity gradient regulation device

CN122324879APending Publication Date: 2026-07-03HEFEI UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HEFEI UNIV OF TECH
Filing Date
2026-04-03
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing salinity gradient control devices are prone to salt agglomeration, low dissolution rate, and poor mixing effect during salt addition, which affects the timeliness and accuracy of the pretreatment stage and easily causes agglomeration and blockage, increasing maintenance costs.

Method used

A salinity gradient control device including a crushing chamber and a mixing chamber was designed. The crushing chamber is equipped with a crushing mechanism, and the mixing chamber is equipped with a mixing and agitation mechanism. The salt-containing agent is pre-crushed by the crushing execution unit, and the mixing effect of the agent and wastewater is enhanced by the combined motion mode of the rotating cylinder and the stirring rod in the mixing chamber.

Benefits of technology

It effectively avoids the clumping of salt-based agents, improves the dissolution rate and mixing uniformity, ensures the timeliness and accuracy of salinity adjustment, reduces the risk of clogging, lowers maintenance costs, and guarantees the stable operation of the wastewater treatment system.

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Abstract

This invention proposes a salinity gradient control device, comprising: a crushing chamber and a mixing chamber; the crushing chamber is equipped with a crushing mechanism, which includes a power mechanism and a crushing execution unit driven by the power mechanism; the crushing chamber is positioned above and communicates with the mixing chamber; the mixing chamber is equipped with a mixing and agitating mechanism, which includes a power mechanism and a rotating cylinder for performing rotational operations; several stirring rods are inserted on the circumference of the rotating cylinder, all of which can move along their own axial direction, and a ball is installed at the end of each stirring rod located inside the rotating cylinder, and a spring is fitted onto it; a mandrel is coaxially arranged inside the rotating cylinder; the outer wall of the mandrel has an inner groove. This invention improves the uniformity of reagent dissolution, ensures the stable construction of subsequent salinity gradients, effectively adapts to the salinity control requirements of high-salinity wastewater pretreatment, and provides a reliable guarantee for the efficient operation of subsequent biological or physicochemical treatment processes.
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