CN218189182U - Shearing, stirring and mixing device - Google Patents

Abstract

The utility model discloses a shearing, stirring and mixing device, which comprises a shearing barrel, a stirring paddle, a stirring shaft, a locking piece and a motor; the shearing cylinder is a cylinder body with an opening at the upper end, the stirring paddle is in a centrifugal type, and the stirring paddle is arranged in the shearing cylinder; the shearing cylinder comprises a cylinder, a bottom plate and a flange; the stirring paddle comprises a cover plate, blades and a hub, and a plurality of auxiliary blades are uniformly distributed on the lower surface of the bottom plate; a plurality of grid holes which are communicated with the inside and the outside are formed in the lower part of the cylinder along the circumference of the cylinder wall and are used for overflowing media; the stirring paddle is sleeved on the stirring shaft and is connected with the motor through the stirring shaft, the locking piece locks the stirring paddle on the stirring shaft, and the motor is a speed reduction motor; the cylindrical part between the grid holes forms a cylindrical shear surface, and the outer circle of the blade forms a slurry shear surface. The mixing uniformity degree is high, the structure is simple, the stirring and homogenizing functions are achieved, the maintenance cost is low, and the economic benefit is high.

Description

Shearing, stirring and mixing device

Technical Field

The utility model relates to a solid-liquid mixing homogeneity field especially relates to a shear mixing stirring device.

Background

The powder-liquid mixing process is widely applied to a plurality of fields such as light industry, chemical industry and the like, and the mixing and homogenizing process has high requirements on the mixing uniformity so as to avoid influencing the production process and the quality of final products.

However, the powder-liquid mixing technology and the fluid mixing equipment in the prior art have many defects, namely, the mixing uniformity does not reach the standard or the equipment is too complex, the quality of products is affected if the mixing uniformity does not reach the standard, and the initial cost and the maintenance cost are too high if the equipment is too complex. The equipment homogeneity that stirring effect is good is relatively poor, and the production efficiency that the homogeneity is good is lower again. For example, the powder-liquid mixing process of talcum powder and water has higher requirements on stirring homogenization effect and production efficiency, and the stirring paddle of the powder-liquid mixing process is a turbine type, a propulsion type, a frame type or a twist paddle, although the stirring efficiency is higher, the average effect is poorer; if a special homogenizing device is used, although the homogenizing effect is improved, the production efficiency is reduced; if the traditional stirrer is combined with a homogenizing device, the equipment is too large, the energy consumption of the equipment is increased, the reliability is poor, and the cost is greatly increased. Therefore, the performance of the stirring and mixing equipment in the prior art cannot well meet the requirements of the production process, and the stirring and homogenizing effect and the production efficiency of the stirring and mixing equipment need to be improved.

Disclosure of Invention

In order to solve the problem, the utility model provides a shear mixing device, can fine solution prior art's stirring homogeneity effect and production efficiency unsatisfactory, the structure is complicated, a great deal of defects such as operation and maintenance cost height.

In order to realize the purpose, the utility model discloses the technical scheme who adopts is:

a shearing, stirring and mixing device comprises a shearing cylinder and a stirring paddle; the stirring shaft, the locking piece and the motor are also included; the shearing cylinder is a cylinder body with an opening at the upper end, the stirring paddle is in a centrifugal type, and the stirring paddle is arranged in the shearing cylinder; the shearing cylinder comprises a cylinder, a bottom plate arranged at the lower end of the cylinder and used for sealing, and a flange arranged at the upper end of the cylinder; the stirring paddle comprises a cover plate arranged at the lower part of the stirring paddle, centrifugal blades uniformly distributed on the cover plate along the circumference and a hub for connecting the cover plate and the blades; a plurality of grid holes which are communicated with the inside and the outside are formed in the lower part of the cylinder along the circumference of the cylinder wall and are used for overflowing media; the stirring paddle is sleeved on the stirring shaft and is connected with the motor through the stirring shaft, the locking piece locks the stirring paddle on the stirring shaft, and the motor is a speed reduction motor; the cylindrical part between the grid holes forms a cylindrical shear surface, and the outer circle of the blade forms a slurry shear surface.

As a further improvement of the utility model, the shearing cylinder is connected with a container through the flange, the container is used for containing the stirred finished medium, and the container is provided with a liquid inlet and a powder inlet; the shearing cylinder is suspended in the container.

As a further improvement of the utility model, the paddle is sweepback, and the number of the paddles is more than 2; the paddle is slightly turned backwards when viewed from top to bottom, so that the paddle generates an upward thrust when rotating, and the stirring and mixing effects are enhanced.

As a further improvement of the utility model, a plurality of auxiliary blades are uniformly distributed on the lower surface of the bottom plate along the circumference of the stirring paddle; the auxiliary blade is a straight blade; the auxiliary blade plays a role in scraping walls and assisting in shearing and stirring, and the effect of the auxiliary blade depends on the gap between the bottom plate and the end face of the auxiliary blade.

As a further improvement, the shearing effect between a shearing section of thick bamboo and the stirring rake depends on clearance between section of thick bamboo shear plane and the thick liquid shear plane, the stirring rake diameter is big more, and the clearance is the smaller then the shearing effect is better.

As a further improvement, the shearing cylinder and the stirring paddle are made of different materials, and the two materials have certain hardness difference.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the mixing uniformity degree is high: has the dual functions of stirring and homogenizing, and improves the stirring and homogenizing effects and the production efficiency.

2. Simple structure, the reliability is high: only has a simple flow passage structure, does not need maintenance, and has low maintenance cost and high economic benefit.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description, do not constitute a limitation of the invention, in which:

fig. 1 is a front sectional view of the present invention.

Fig. 2 isbase:Sub>A cross-sectional view taken along linebase:Sub>A-base:Sub>A of fig. 1.

Fig. 3 is a schematic structural view of the cutting cylinder of the present invention.

Fig. 4 is a schematic structural view of the stirring paddle of the present invention.

In the figure: 1. shearing cylinder, 2, stirring paddle, 3, stirring shaft, 4, locking part, 5, motor, 6, container, 11, bottom plate, 12 cylinders, 13, grid hole, 14, flange, 15, cylinder shearing surface, 21, cover plate, 22, blade, 23, auxiliary blade, 24, hub, 25, slurry shearing surface, 61, liquid inlet, 62 and powder inlet.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate the directions or positional relationships based on the directions or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; the mechanical connection can be welding, riveting, threaded connection, flange connection or the like; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 to 4, the utility model provides a shearing, stirring and mixing device, which comprises a shearing cylinder 1, a stirring paddle 2, a stirring shaft 3, a locking piece 4 and a motor 5. The shearing cylinder 1 is a cylinder with an opening at the upper end, and the stirring paddle 2 is centrifugal, so that the stirring flow field is more uniform and stable, and the energy is saved. The stirring paddle 2 is arranged in the shearing cylinder, and the stirring paddle and the shearing cylinder are mutually matched to realize the stirring and homogenizing functions. The cutting cylinder 1 includes a cylinder 12, a bottom plate 11 provided at a lower end of the cylinder 12 for sealing, and a flange 14 provided at an upper end of the cylinder 12. The stirring paddle 2 comprises a cover plate 21 arranged at the lower part of the stirring paddle, centrifugal blades 22 evenly distributed on the cover plate 21 along the circumference and a hub 24 connecting the cover plate 21 and the blades 22. The lower part of the cylinder 12 is provided with a plurality of grid holes 13 which are communicated with the inside and the outside along the circumference of the cylinder wall, the grid holes 13 are rectangular and used for flowing media, and the size of the grid holes 13 depends on the working flow. Stirring shaft 3 is located to 2 covers of stirring rake, and stirring rake 2 is connected with motor 5 through (mixing) shaft 3, and retaining member 4 locks stirring rake 2 in (mixing) shaft 3, and motor 5 is gear motor to reduce the rotational speed, improve the moment of torsion. The cylindrical part between the grid holes 13 forms a cylindrical shearing surface 15, the outer circle of the paddle 22 forms a slurry shearing surface 25, the intersection line of the cylindrical shearing surface 15 and the side surface of the grid holes 13 forms a cylindrical cutting edge, the intersection line of the slurry shearing surface 25 and the working surface of the paddle 22 forms a slurry cutting edge, and the cylindrical cutting edge and the slurry cutting edge play a role in shearing the powder-liquid mixture of the embodiment. The shearing cylinder 1 and the stirring paddle 2 are made of different materials, and the two materials have certain hardness difference so as to avoid occlusion when the gap between the cylinder shearing surface 15 and the slurry shearing surface 25 is small.

The shearing cylinder 1 is connected with a container 6 through a flange 14, the container 6 is used for containing a stirred finished medium, and the container 6 is provided with a liquid inlet 61 and a powder inlet 62. The shearing cylinder 1 is suspended in the container 6, and the medium in the shearing cylinder 1 becomes a homogeneous fluid and flows into the container 6 through the grid holes 13 under the stirring and shearing actions.

The blades 22 are of a sweepback type, and the number of the blades 22 is more than 2. The blades 22 are slightly turned backwards when viewed from top to bottom, so that the blades 22 generate an upward thrust when rotating, the upward thrust is raised from a place with a large radius of the blades 22, and finally the upward thrust is lowered from a place with a small radius to form a three-dimensional vortex, thereby enhancing the stirring and mixing effects.

The stirring paddle 2 is evenly distributed with a plurality of auxiliary blades 23 along the circumference on the lower surface of the bottom plate 11, the auxiliary blades 23 are straight blades, the auxiliary blades 23 play a role in scraping walls and assisting in shearing and stirring, and the effect depends on the gap between the bottom plate 11 and the end surfaces of the auxiliary blades 23.

The shearing effect between the shearing cylinder 1 and the stirring paddle 2 depends on the clearance between the cylinder shearing surface 15 and the slurry shearing surface 25, and the larger the diameter of the stirring paddle 2 is, the smaller the clearance is, the better the shearing effect is.

After powder and liquid got into shearing stirring mixing arrangement, at first mix, under the stirring effect of stirring rake 2 of high-speed rotation, powder liquid primary mixing is even, still there is the existence of less powder micelle this moment, can not satisfy the requirement of flow technology well, then under the drive effect of three-dimensional swirl, micelle and liquid mix again, then get into the less place of stirring rake 2 diameter, under the effect of stirring rake 2 centrifugal force, the micelle is stirred evenly, powder liquid mixture obtains thorough homogeneity under the shearing effect of a plurality of thick liquid cutting edges and grid hole department of stirring rake 2 excircle department at last. The homogenized powder-liquid mixture flows out of the grid hole 13 into the container 6 and enters the next process flow.

Compared with the prior art, the embodiment has the following advantages:

the mixing uniformity degree is high: has the dual functions of stirring and homogenizing, and improves the stirring and homogenizing effects and the production efficiency.

Simple structure, the reliability is high: only has a simple flow passage structure, does not need maintenance, and has low maintenance cost and high economic benefit.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (6)

1. The utility model provides a shear mixing agitating mixing apparatus which characterized in that: comprises a shearing cylinder and a stirring paddle; the stirring shaft, the locking piece and the motor are also included; the shearing cylinder is a cylinder body with an opening at the upper end, the stirring paddle is in a centrifugal type, and the stirring paddle is arranged in the shearing cylinder; the shearing cylinder comprises a cylinder, a bottom plate arranged at the lower end of the cylinder and used for sealing, and a flange arranged at the upper end of the cylinder; the stirring paddle comprises a cover plate arranged at the lower part of the stirring paddle, centrifugal blades uniformly distributed on the cover plate along the circumference and a hub for connecting the cover plate and the blades; a plurality of grid holes which are communicated internally and externally are formed in the lower part of the cylinder along the circumference of the cylinder wall and are used for overflowing media; the stirring paddle is sleeved on the stirring shaft, the stirring paddle is connected with the motor through the stirring shaft, the locking piece locks the stirring paddle on the stirring shaft, and the motor is a speed reduction motor; the cylindrical part between the grid holes forms a cylindrical shear surface, and the outer circle of the blade forms a slurry shear surface.

2. A shear mixing device according to claim 1, wherein: the shearing cylinder is connected with a container through the flange, the container is used for containing a stirred finished medium, and the container is provided with a liquid inlet and a powder inlet; the shearing cylinder is suspended in the container.

3. A shear mixing device according to claim 1, wherein: the blades are sweepback, and the number of the blades is more than 2; the paddle is slightly turned backwards when viewed from top to bottom, so that the paddle generates an upward thrust when rotating, and the stirring and mixing effects are enhanced.

4. A shear mixing device according to claim 1, wherein: a plurality of auxiliary blades are uniformly distributed on the lower surface of the bottom plate along the circumference of the stirring paddle; the auxiliary blade is a straight blade; the auxiliary blade plays a role in scraping walls and assisting in shearing and stirring, and the effect of the auxiliary blade depends on the gap between the bottom plate and the end face of the auxiliary blade.

5. A shear mixing device according to claim 1, wherein: the shearing effect between a shearing section of thick bamboo and the stirring rake depends on the clearance between section of thick bamboo shear plane and the thick liquid shear plane, the stirring rake diameter is bigger, and the clearance is less then the shearing effect is better.

6. A shear mixing device according to claim 1, wherein: the shearing cylinder and the stirring paddle are made of different materials, and the two materials have certain hardness difference.

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