CN204607992U - High viscosity liquid whipping appts - Google Patents

Abstract

The utility model belongs to the technical field of protein enzymolysis, in particular to a high-viscosity liquid stirring device. It includes a mixing tank, a stirring shaft and its blade I, and a driving mechanism for the stirring shaft. There are multiple stirring shafts, which are evenly distributed along the circumference of the central axis of the barrel, and the rotation direction of each stirring shaft is the same; the blades on each stirring shaft I are arranged staggered up and down, and the length of the orthographic projection of blade I on the horizontal plane is greater than half of the distance between adjacent stirring shafts, and less than or equal to the distance between the surface of the stirring shaft and the inner wall of the barrel. The high-viscosity liquid stirring device of the utility model has a small liquid stirring dead zone area, does not need to be specially equipped with a rotating scraper, and the reaction kettle and the stirring shaft do not need to make relative movements, which saves power, is stable and safe; the operation process can reduce the appearance of laminar flow state , which is conducive to the rapid dispersion of colloidal materials, improves the stirring effect, and is conducive to improving the efficiency of enzymatic hydrolysis.

Description

High viscosity liquid stirring device

technical field

The utility model relates to a stirrer, in particular to a high-viscosity liquid stirring device, which is also suitable for semi-solid stirring.

Background technique

Many polymer solutions are high-viscosity fluids, and most of them are non-Newtonian fluids. Many natural polymers also involve a variety of heterogeneous operations such as dispersion, solid dissolution, and chemical reactions during fluid stirring. The development of high-efficiency mixing equipment is of great significance to improve production efficiency and ensure stable product quality.

Protein is a biological macromolecule, and the enzymatic hydrolysis of protein is a hot spot in scientific research and industrial production. Protein enzymatic hydrolysis system is a typical example of high viscosity stirring. High-concentration proteins (such as wheat protein, soybean protein, etc.) absorb water and swell, and the viscosity of the solution increases. Some proteins form a highly viscous or partially insoluble gel colloid state after absorbing water, which is difficult to disperse evenly in aqueous solution, affecting stirring and reaction. efficiency. The traditional stirring method mainly uses a single stirring shaft and needs to be stirred quickly. There are two main problems in it. One is that the protein swells rapidly after absorbing water, or it is difficult to disperse quickly after part of the protein forms a colloid. The uneven protein dispersion system will lead to protein The enzymatic hydrolysis is uneven and the product quality is unstable; the second is that when the liquid is rotated in one direction when the uniaxial rapid stirring is easy to form a laminar flow state, it affects the uniform contact and effective reaction between the enzyme molecule and the protein. Both of the above-mentioned problems will reduce the efficiency of enzymatic hydrolysis and affect the stability of the product quality of the enzymatic hydrolysis reaction.

Contents of the invention

The technical problem to be solved by this utility model is to overcome the deficiencies of the above-mentioned prior art, and provide a kind of dispersing and mixing as a whole, which is suitable for stirring with high-viscosity protein enzymolysis system (such as wheat protein, soybean protein enzymolysis), and has A high-viscosity liquid stirring device that is beneficial to improve the efficiency of enzymatic hydrolysis and the quality stability of enzymatic hydrolysis products.

For solving the problems of the technologies described above, the technical solution of the utility model is:

Design a high-viscosity liquid stirring device, including a stirring barrel, a stirring shaft and its blade I, and a stirring shaft drive mechanism. There are multiple stirring shafts, which are evenly distributed along the circumference of the central axis of the barrel. The direction is the same; the blades I on each stirring shaft are staggered up and down, and the length of the orthographic projection of blade I on the horizontal plane is greater than half of the distance between adjacent stirring shafts, and is less than or equal to the distance between the surface of the stirring shaft and the inner wall of the barrel .

Further, a blade II is fixed on the inner wall of the barrel outside the stroke area of the blades of the adjacent stirring shaft, and the vertical positions of the blade II and each blade I are staggered.

Preferably, the blade I includes a horizontal portion connected to the surface of the stirring shaft and a bent portion at the end, wherein the angle between the bent portion and the horizontal plane ranges from 25° to 30°.

Further, there are 3 to 6 stirring shafts.

Preferably, there are 4 to 6 stirring shafts, and an auxiliary stirring shaft is provided along the central axis of the barrel body. The rotation direction of the auxiliary stirring shaft is opposite to that of other stirring shafts. The upper and lower positions of blade I are staggered.

Further, the driving mechanism includes a main motor, a driving gear and a driven gear, the driven gears are fixedly fitted on each stirring shaft, the driving gear meshes with each driven gear respectively, and the main motor is directly connected to the shaft of the driving gear.

Preferably, the driving gear shaft is arranged along the central axis of the barrel body, or arranged away from the central axis.

Further, the driving mechanism is a plurality of motors arranged corresponding to the stirring shaft and directly connected.

The beneficial effects of the technical solution of the utility model are:

1. In terms of structure, the high-viscosity liquid stirring device of the utility model adopts multi-axis stirring, and the running tracks of each stirring blade I overlap each other to form a secondary stirring, which can ensure the stirring range to the greatest extent and eliminate the dead angle in the stirring; at the same time, adjacent The material in the area between the two stirring shafts is in the opposite direction of force, and for high-viscosity liquids, it is subjected to the opposite shearing action of blades I of different stirring shafts. The operation process can reduce the appearance of laminar flow state, which is conducive to the rapid Dispersion improves the stirring effect, which in turn helps to improve the efficiency of enzymatic hydrolysis.

2. In terms of structure, the utility model is equipped with a blade II on the inner wall of the barrel, and cooperates with the blade I to stir, further ensuring the maximum stirring range and eliminating the dead angle in the stirring; the end of the blade I is inclined, and the length of the stirring blade is relatively short , can greatly reduce the resistance during start-up and stirring, and can further reduce the appearance of laminar flow state during operation, which is conducive to the rapid dispersion of colloidal materials and improves the stirring effect.

3. In terms of structure, the stirring shaft of the utility model adopts gear transmission, and the transmission is stable and reliable; through the adjustment of the installation position of the driving gear, the rotation speed of each stirring shaft is different, and one of them maintains a higher speed; or the stirring shaft The motors are directly connected to drive respectively, the structure is simple, the speed of each stirring shaft is convenient to adjust, and the use is convenient.

4. In summary, the high-viscosity liquid stirring device of the utility model has a small liquid stirring dead zone area, does not need to be specially equipped with a rotating scraper, and the reaction kettle and the stirring shaft do not need to make relative movements, which saves power, is stable and safe; the width of the paddle It can be properly reduced, and at the same time has a certain shearing effect on polymer compounds; it can also be stirred effectively at low speeds, while saving power, with low noise, and is suitable for popularization and implementation.

Description of drawings

Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is described in further detail, wherein:

Fig. 1 is the structural representation of the utility model high-viscosity liquid stirring device;

Fig. 2 is a top view structural schematic diagram shown in Fig. 1;

Fig. 3 is one of structural representations of the driving mechanism of the present utility model;

Fig. 4 is the second structural representation of the driving mechanism of the utility model;

Serial number in the figure: 1, mixing tank, 2, stirring shaft, 3, blade I, 4, blade II, 5, 5', driving gear, 6, 6', 6", driven gear, 7, bearing.

Detailed ways

Embodiment one:

Referring to Figure 1-2, in the figure, the high-viscosity liquid stirring device of the present invention includes a stirring tank 1, a stirring shaft 2 and its blade I3, and a stirring shaft driving mechanism. There are three stirring shafts, which are respectively supported by bearings 7 for rotation At the bottom of the barrel, it is evenly distributed along the circumference of the central axis of the barrel, and the rotation direction of each stirring shaft is the same; the blades Ⅰ on each stirring shaft are staggered up and down, and the length of the orthographic projection of blade Ⅰ on the horizontal plane is greater than that between adjacent stirring shafts. Half of the distance between them, and less than or equal to the distance between the surface of the stirring shaft and the inner wall of the barrel.

Blade II 4 is fixed on the barrel inner wall outside the blade stroke area of any two stirring shafts, and the upper and lower positions of blade II and each blade I are staggered. The blade I includes a horizontal portion connected to the surface of the stirring shaft and a bent portion at the end, wherein the angle between the bent portion and the horizontal plane ranges from 25° to 30°.

Referring to Fig. 3, among the figures, the drive mechanism includes a main motor, a driving gear 5 and a driven gear 6, and the driven gears are correspondingly fixedly set on each stirring shaft, the driving gears mesh with the driven gears respectively, and the main motor and the driving gear The gear shaft is directly connected. The driving gear shaft is arranged along the central axis of the barrel body.

Embodiment two:

Referring to Fig. 4, in the figure, the structure of this embodiment is similar to that of Embodiment 1, and the structurally identical parts will not be repeated here. The agitator shaft is set, and the speed ratio of the driven gear 6 "and 6' set on the agitator shaft and the other two agitator shafts will change relative to the driving gear 5', so that the rotation speed of the agitator shaft can be different, and one of them remains higher speed.

Embodiment three :

Present embodiment figure is not drawn. This embodiment is similar in structure to the first embodiment, and the structurally identical parts will not be repeated here. The difference is that the driving mechanism in this embodiment is a plurality of motors that are arranged corresponding to the stirring shaft and directly connected.

The above descriptions are only illustrative specific implementations of the present utility model, and are not intended to limit the scope of the present utility model. Any equivalent changes made by those skilled in the art without departing from the concept and principles of the present utility model are the same as Any modification should belong to the protection scope of the utility model.

Claims (8)

1. A stirring device for high-viscosity liquid, comprising a stirring barrel, a stirring shaft and blade I thereof, and a stirring shaft drive mechanism, characterized in that: the stirring shafts have a plurality of them, and are evenly distributed circumferentially along the central axis of the barrel, The direction of rotation of each stirring shaft is the same; the blades I on each stirring shaft are staggered up and down, and the length of the orthographic projection of the blade I on the horizontal plane is greater than half of the distance between adjacent stirring shafts, and less than or equal to the surface of the stirring shaft and the inside of the barrel. distance between walls. 2. The high-viscosity liquid stirring device according to claim 1, characterized in that: blade II is fixed on the inner wall of the barrel outside the stroke area of the blades of the adjacent stirring shaft, and the vertical positions of blade II and each blade I are staggered. 3. The high-viscosity liquid stirring device according to claim 1, characterized in that: the blade I includes a horizontal part connected to the surface of the stirring shaft and a bent end part, wherein the angle between the bent part and the horizontal plane is 25° ~30 degrees. 4. The stirring device for high-viscosity liquid according to claim 1, characterized in that: there are 3-6 stirring shafts. 5. The stirring device for high-viscosity liquid according to claim 4, characterized in that: there are 4 to 6 stirring shafts, and an auxiliary stirring shaft is provided along the central axis of the barrel body, and the rotation direction of the auxiliary stirring shaft is the same as that of The directions of the other stirring shafts are opposite, and the positions of the blades III on the auxiliary stirring shaft and the blades I are staggered up and down. 6. The high-viscosity liquid stirring device according to claim 1, characterized in that: the driving mechanism includes a main motor, a driving gear and a driven gear, the driven gears are correspondingly and fixedly set on each stirring shaft, and the driving gear and each The driven gears mesh respectively, and the main motor is directly connected with the driving gear shaft. 7. The high-viscosity liquid stirring device according to claim 6, characterized in that: the driving gear shaft is arranged along the central axis of the barrel body, or arranged away from the central axis. 8. The high-viscosity liquid stirring device according to claim 1, characterized in that: the driving mechanism is a plurality of motors arranged corresponding to the stirring shaft and directly connected.