Jetting-stirring coupling type quantitative dispersion and mixing system for powdery flocculation medicament

Abstract

The invention relates to the field of addition of flocculation medicament in a slime water treatment technology and specifically relates to a jetting-stirring coupling type quantitative dispersion andmixing system for powdery flocculation medicament. The jetting-stirring coupling type quantitative dispersion and mixing system at least comprises an annular jetting device, and further comprises a medicament storage system, a medicament quantitative conveying and adding system, a jetting-stirring coupling type dispersion system and an PLC (Programmable Logic Controller) intelligent control system. The jetting-stirring coupling type dispersion system is a core subsystem of the jetting-stirring coupling type quantitative dispersion and mixing system and comprises the annular jetting device anda stirring and dispersion device, wherein the annular jetting device is composed of a screw pump, a pressure water pipe, an ejection air pipe, a mixing chamber, a spraying nozzle and a pressure-stabilizing throat pipe; the stirring and dispersion device comprises a stirring mechanism and a mixing and stirring bucket; the stirring mechanism is composed of a stator, a sleeve, a shaft and a double-layer impeller; a false bottom is designed at the bottom of the mixing and stirring bucket; a plurality of baffle plates are arranged on a bucket wall; a liquid level measuring device is distributed above the bucket wall. The system involved in the invention sufficiently considers addition and dissolution characteristics of the flocculation medicament and can be used for accurately and quantitatively adding powdery medicament and solution at the same time.

Description

technical field [0001] The invention relates to the field of flocculation agent addition in the coal slime water treatment process, in particular to a jet-stirring coupled powder flocculation agent quantitative dispersion and mixing system. Background technique [0002] The vast majority of coal preparation plants in my country use wet coal preparation. Coal slime water treatment is an important link in the wet coal preparation process. From the perspective of economy and environmental protection, it is required to deeply clarify the slime water and wash water in a closed circuit. Coal preparation plants usually use coagulation method to process slime water. The so-called coagulation method is to add coagulant to the slime water system to make the particles in the slime water system reunite and settle by gravity. The commonly used coagulants are organic polymer flocculants, such as polyacrylamide. Due to the characteristics of large molecular weight and long side chains, org...

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Problems solved by technology

[0003] The object of the present invention is to overcome above-mentioned deficiencies in the prior art, design jet-stirring coupling type medicament quantitative dispersing mixing system, its core subsystem is jet-stirring coupled dispersion system, comprises annular space jet device and stirring dispersing device; Other sub-systems The system also has a medicament storage system, a medicament quantitative delivery and addition system, and a PLC intelligent control system to disperse and mix quantitative powder medicaments in unit volume of liquid water to ensure that the powder medicaments are added according to the required amount, and are uniformly dispersed and rapidly distributed in the aqueous solution. Dissolution, to eliminate the deviation of dosage and powdery flocculation agent "swelling" agglomeration, difficulty in dissolution and other problems, the invention integrates storage material, quantitative screw feeding, automatic injection dosing and jet-stirring coupling dispersion and mixing, and has the advantages of The device has the advantages of reasonable structure and high degree of automation, which can eliminate the deviation caused by human factors in the process of material storage, transportation and addition, and at the same time ensure the efficient dispersion of powdered chemicals in the aqueous solution, providing good conditions for the subsequent coal slime water treatment.

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