Liquid phase impinging stream reactor with controllable acidity

Abstract

The invention discloses a liquid phase impinging stream reactor with controllable acidity, belonging to the field of chemical reaction technical equipment. In the reactor, 1-6 pairs of draft tubes with changeable diameters are horizontally arranged coaxially and oppositely; raw materials are introduced by feeding tubes with curved nozzles; fluid is accelerated by push-type three-blade stirrers at the entrance of the draft tubes; the rotation speed of the push-type three-blade stirrers is controlled by a controller; rotational flow is inhibited by deflection baffles; the inner diameters of the draft tubes become smaller gradually; cross-section area of a flow channel is decreased; flow speed is increased; the flow speed at the exits of the draft tubes is the maximum; two fluids impinge face to face at a high speed in the container and mixed efficiently and rapidly; the fluids flow to the entrance of the draft tubes from central impinging areas through the outer sides of the draft tubes, thus realizing circulation; motors are fixed and anti-vibrated by triangle support plates, the acidity of a reaction system is on-site monitored by a pH meter probe and displayed in real time by a pH meter display; constant acidity of the reaction system is realized by adjusting liquid inlet flow quantity; and materials in the contained are discharged from a material-discharging port after the reaction is finished. The liquid phase impinging stream reactor can be heated or cooled, and can be operated continuously, intermittently or semi-continuously.

Description

technical field [0001] The invention belongs to the field of chemical reaction technical equipment, and relates to a liquid phase impingement flow reaction device with controllable acidity. Background technique [0002] In the engineering fields of chemical engineering, materials and pharmaceuticals, the process of preparing ultrafine powder by liquid phase reaction is often involved. The problem of rapid and uniform mixing of materials in the reaction device is the bottleneck of the quality of the product prepared in this process, which directly affects the particle size and particle size distribution of the product particles. . [0003] The traditional device widely used in the liquid phase reaction process in industry is the tank-type stirred tank reactor. This kind of reactor is usually in a container whose height is slightly larger than the diameter. Mixing occurs due to relative motion. Because the relative motion between flow groups produced in this way is not stron...

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Problems solved by technology

Thirdly, the motor shaft driving the propeller is a cantilever structure. If the shaft is long or the speed is fast, it will easily cause vibration of the propeller and the motor shaft, and the deformation of the shaft will cause the motor to not work, which is not suitable for long-term operation.

In addition, there is a vortex flow in the fluid in the guide tube, and a vortex is generated in the flow, resulting in a large amount of energy loss

Finally, the bottom of the container is designed horizontally. For systems with solid particles or crystallization, it is not conducive to unloading and cleaning the container after the reaction.

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