High-shear emulsification pump

Abstract

The invention belongs to the emulsification pump field, and concretely relates to a high-shear emulsification pump used in the petrochemical industry and the acrylic fiber industry. The high-shear emulsification pump comprises a shearing head, the shearing head has two end surface portions arranged in parallel, the adjacent surfaces of the end surface portions are provided with protruding ring portions along the axis, the two protruding ring portions of the end surface portions are mutually coupled in an interlaced manner, a ring groove between two adjacent protruding ring portions of one of the end surface portions forms a plugging cooperation groove of the corresponding protruding ring portion on the other one of the end surface portions, and gaps are between the cooperation protruding ring portions of a rotor and a stator and form a mixed cavity channel; and the high-shear emulsification pump also comprises a primary material cavity channel and an auxiliary material cavity channel, the number of the material outlets of the auxiliary material cavity channel is above two, and the material outlets of the auxiliary material cavity channel are arranged along the circumference of the ring wall of at least one of the protruding ring portion on the shearing head, and are close to the material inlet of the mixed cavity channel or are positioned in the mixed cavity channel. The high-shear emulsification pump can effectively guarantee the uniform mixing of all phases entering the pump, and can reliably and stably work.

Description

technical field [0001] The invention belongs to the field of emulsification pumps, in particular to a high-shear emulsification pump used in the petrochemical acrylic fiber industry. Background technique [0002] Reaction and mixing operations are widely used in petrochemical and other industries, with a wide range of applications and diverse structures. High-shear emulsification pump is a new type of high-efficiency mixing equipment introduced in recent years. It can efficiently, quickly and evenly distribute one or more phases into another continuous phase, and under normal circumstances, the various phases are mutually insoluble. The shearing head of the high-shear emulsification pump, that is, the mixing part, is composed of a rotor and a stator. The radial gap between the stator and the rotor is small. In the narrow cavity of the high-shear emulsification pump, there are often multiple pairs of coupled stators and Rotor, the specific structure can be partly referred to...

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Problems solved by technology

[0003] Although the above-mentioned high-shear emulsification pump has been trusted by a large number of users because of its fast and stable working performance in the long-term use of people, its exposed shortcomings cannot be underestimated, mainly in: the current high-shear emulsification pump feed The operation still relies on the main material inlet to feed the main material into the material cavity in the pump, and relies on the external pipeline and pipeline nozzles to simultaneously spray auxiliary materials into the pump internal material cavity. On the one hand, due to the external pipeline and pipe nozzle Influenced by factors such as improper operation of the road nozzle or the diameter of the material particles, the nozzle blockage often occurs, resulting in the situation that the material cannot be fed smoothly; Then, along the circumferential arrangement of the stator and the rotor, the annular slots enter into the narrow gap between the stator and the rotor. Even if there is the suction effect of the pump body, there will still be reasons such as the particle diameter of the auxiliary material is too large, which will cause the material to flow in the air. A large amount of sedimentation in the material cavity of the pump, the above phenomena all lead to the instability and inefficiency of the emulsification pump in actual operation; more importantly, the various materials originally used for mixing are mostly insoluble in each other At present, when the auxiliary material of the high-shear emulsification pump enters the material chamber of the pump, it is directly sprayed on the main material. There is almost no interaction in the material cavity in the pump. The phenomenon that the auxiliary material in the pump material cavity is scattered in the main material and cannot be dispersed occurs from time to time. Then enter the narrow gap between the stator and the rotor for high-speed stirring, the final mixing effect is still unsatisfactory

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