Concentration of suspensions

Concentration of suspensions

  • CN 102,939,141 A
  • Filed: 04/08/2011
  • Published: 02/20/2013
  • Est. Priority Date: 04/09/2010
  • Status: Active Application
First Claim
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1. one kind forms the method for second aqueous suspension (15) of solid particle by first aqueous suspension (11) of gravity sedimentation solid particle in container (13), comprises the following steps:

  • At least a organic polymer flocculant (12) is added in first aqueous suspension (14) of described solid particle, thus the suspension of formation flocculation solid (11),Described flocculation solid sedimentation and form the bed (5) of fixed solid,The exciting agent of effective dose is introduced i) in the bed (5) of fixed solid or ii) in the flocculation solid (11) of sedimentation,Forming described the second aqueous suspension (15),Wherein second aqueous suspension (15) of solid particle has the high solids content of the first aqueous suspension (14) than solid particle,And wherein said exciting agent is selected from free radical reagent and oxidising agent,Wherein said exciting agent is introduced according to being selected from following measure;

    A) rake (10) of the described exciting agent of one or more conveyings;

    B) one or more conduits that enter by the top of described container (16), described exciting agent is introduced by described conduit;

    C) one or more hole or conduits (17) in described container side wall, described exciting agent is introduced by described hole or conduit;

    D) one or more hole or conduits (18) in described container base, described exciting agent is introduced by described hole or conduit;

    E) in the feeding line by one or more beds carried fixed solid by described container base, preferably the hole between described container base and pump or conduit (19) are introduced described exciting agent;

    AndF) one or more distributors (20), described exciting agent is introduced by described distributor.

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