Full-mixed-flow high-shear mixer

Abstract

The invention discloses a full-mixed-flow high-shear mixer which comprises a motor 1 and a main rotating shaft 4. The main rotating shaft 4 penetrates through a fixed disc 2 and a connecting disc 5, the fixed disc 2 is located at the upper end of the main rotating shaft 4, and the connecting disc 5 is located at the lower portion of the main rotating shaft 4; the lower end part of the main rotating shaft 4 is connected with a rotor 7; the fixed disc 2 is connected with the connecting disc 5 through a fixed rod 3; the connecting disc 5 is connected with a flange 8, the flange 8 is connected with a stator 6 through a supporting rod 9, the stator comprises a cylindrical side wall 11 and a bottom wall 10, the upper end and the lower end of the cylindrical side wall 11 are in a horn mouth shape, hole rows are formed in the side wall, and the bottom wall is composed of 1-3 layers of net plates. The full-mixed-flow high-shear mixer is used for mixing, dissolving and dispersing operations andhas the advantages of good effect, high efficiency, energy conservation, low process investment cost and easiness in operation and can reduce the production cost and improve the product quality and meets the requirements of energy conservation, emission reduction and green production.

Description

technical field [0001] The present invention is a full mixed flow high shear mixer that can be used to enhance mixing, dispersion and dissolution rates. Background technique [0002] As a new type of process intensification equipment, the high-shear mixer is composed of a high-speed rotating rotor (100-25000rpm) and a fixed stator. The high terminal linear velocity of the rotor (10-50m / s) and the narrow shear gap (0.1-2mm) between the stator and rotor determine that it has a strong shear rate and a large local energy dissipation rate. This can effectively promote energy and mass transfer, so it is widely used to enhance mixing, dissolution, emulsification, homogenization, depolymerization and reaction processes. [0003] Mixing, dispersing and dissolving operations widely exist in industrial production processes, and their efficiency and effects often have an important impact on process design and operating costs, product quality and overall benefits. For the typical exter...

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Problems solved by technology

[0005] The above-mentioned patented technology can play a better strengthening effect when used in mixing, dispersing and dissolving operations, but the rotor of the high-shear mixer in the above-mentioned patent is a straight blade or an upright blade, and the holes on the side wall of the stator do not have an inclination angle. ; Therefore, the material is pushed by the rotor to be discharged from the opening of the bottom wall of the stator or the opening of the side wall in the form of a jet, and the direction of the two jets is vertical, which makes the fluid in the area between the two jets lack sufficient driving force and the flow capacity is weak , it is easy to form a stagnation zone, making the mixing and dispersion effect not ideal

On the other hand, there are still some patents that use the coaxial combination of high-shear mixer and stirring paddle, which can properly enhance the driving force of material flow and improve the circulation capacity of material; but it lacks the connection between the fluid and the bottom wall of the stator. shearing, and at the same time there is a dead zone of up and down flow on the outer side of the stator caused by low speed, which cannot exert the shearing, crushing and mixing ability of high shear on materials, and can only increase the rotor speed to strengthen shearing, crushing and mixing, resulting in Power consumption is too high

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