CN203090793U - Simple agitator - Google Patents

Abstract

The utility model discloses a simple agitator. The simple agitator comprises a rotary shaft internally equipped with a cavity, wherein the axis of the cavity is overlapped with that of the rotary shaft, a plurality of agitating blades are mounted at the bottom of the rotary shaft, the agitating blades are fixed on the outer wall of the rotary shaft, a plurality of through holes interconnected with the cavity are formed in the outer wall of the rotary shaft and above the agitating blades, a plurality of agitating rings are arranged on the outer wall of the rotary shaft, the inner wall of each agitating ring is contacted with the outer wall of the rotary shaft, a connection plate is arranged on each agitating ring, and the agitating blades are below the agitating rings. The agitator disclosed by the utility model has the advantages that the self weight is reduced, the stress requirement in agitation can be satisfied at the same time, the energy consumption is decreased, and the production cost is reduced.

Description

A kind of simple and easy agitator

Technical field

The utility model relates to a kind of simple and easy agitator, belongs to machinery, chemical industry and medicine and other fields, is used for operation that material is stirred and spares.

Background technology

Agitated liquid makes it circulating of certain mode taken place, thereby makes the operation that mixing of materials is even or physics, chemical process are quickened.The application that is stirred in the industrial production has: the 1. dispersion of bubble in liquid, as air dispersion in zymotic fluid, to provide sweat required oxygen; 2. the dispersion of drop in liquid immiscible with it is scattered in as oil and makes emulsion in the water; 3. the suspension of solid particle in liquid is as adding pigment, with modulation coating in resin solution; 4. the mixing of mutually soluble liquids, as make solution dilution, or for the chemical reaction between component of quickening to dissolve each other etc.In addition, stirring can also be strengthened the heat transfer between liquid and the solid wall surface, and material is heated evenly.Stirring method has mechanical agitation and air-flow to stir.The motion of liquid in the tank diameter is divided into overall flow and turbulent flow pulsation from yardstick.The flow of overall flow is called internal circulating load, adds big cycle volume and helps improving the degree of mixing well (seeing mixability) that macroscopic view is mixed.Speed when the intensity of turbulent flow pulsation is left agitator with fluid is relevant, adds the strong turbulence pulsation and helps reducing to separate yardstick and separating intensity.Different processes flows to these two kinds different requirements.Drop, bubbles dispersion need strong turbulent flow pulsation; The even suspension of solid particle depends on overall flow.Energy is the major issues in the agitator design these the two kinds distribution on flowing during stirring.Mixer is that a kind of blade-carrying axle rotates in cylinder or groove, and plurality of raw materials is mixed, and makes it to become the machine of a kind of mixture or suitable denseness.Mixer has been divided into multiple, and forced mixer, single horizontal axis mixer, twin-shaft mixer or the like are arranged.When stirring the mixture, the density contrast of two-phase, viscosity and interfacial tension have a significant impact stirring operation.Density contrast and interfacial tension are more little, and system is easy to the dispersion that reaches stable more; Viscosity is big more to be unfavorable for forming good circulating and enough turbulent flow pulsation more, and consumes bigger power of agitator.Mixer is determined that by a plurality of parameters it is impossible describing a mixer with any one single parameter.The accurate number of flow of the lifting rate of blade and blade itself, the first power of blade rotating speed and the cube of diameter of propeller blade are directly proportional.The shaft power that stir to consume then with specific gravity, the power levels number of blade itself, five powers of the cube of rotating speed and diameter of propeller blade are directly proportional.Under certain power and blade form situation, impeller discharge liquid measure and pressure head can be regulated by the diameter of change blade and the coupling of rotating speed, be that the mixer that the major diameter blade is equipped with the slow-speed of revolution (guarantee shaft power constant) produces higher mobilization and lower pressure head, the minor diameter blade is equipped with high rotating speed and then produces higher pressure head and lower mobilization.In tank diameter, micelle is collided mutually, only way provides enough shear rates.From agitation mechanism, just because of the existence of fluid velocity difference, just make between each layer of fluid and mix mutually, therefore, all whipping process always relate to fluid shearing speed.Shear stress is a kind of power, is the true cause that stirs the bubble dispersion and the breakup of drop etc. in the application.It must be noted that the size of fluid each point shear rate is not consistent in the whole tank diameter.By studies show that shear rate is distributed, in a tank diameter, have four kinds of shear rate numerical value at least, with regard to the blade district, which kind of slurry type no matter, when diameter of propeller blade one regularly, maximum shear speed and average shear rate all increase with the raising of rotating speed.But when rotating speed one timing, maximum shear speed is relevant with the slurry type with the relation of diameter of propeller blade with average shear rate.When rotating speed one timing, radial mode blade maximum shear speed increases with the increase of diameter of propeller blade, and average shear rate and diameter of propeller blade size are irrelevant.When stirring, traditional rotating shaft all is solid, and Heavy Weight has expended the acting that motor rotates, and has caused the increase of production cost.

The utility model content

The purpose of this utility model is to overcome the situation of a large amount of energy of consumption that have mixing plant now, and a kind of simple and easy agitator is provided, and this agitator has reduced deadweight, can satisfy the stress requirement when stirring simultaneously, has reduced and can consume, and has reduced production cost.

The purpose of this utility model is achieved through the following technical solutions: a kind of simple and easy agitator, comprise that inside is provided with the rotating shaft of cavity, the axis of cavity and the dead in line of rotating shaft, be provided with several stirring vanes in the bottom of rotating shaft, stirring vane is fixed on the outer wall of rotating shaft, the outer wall of rotating shaft is provided with several through holes, through hole is communicated with cavity, and through hole is arranged on the top of stirring vane, the outer wall of described rotating shaft is provided with several and stirs ring, and the inwall that stirs ring contacts with the outer wall of rotating shaft, stir ring and be provided with connecting plate, and stirring vane is arranged on the below of stirring ring.

Further, the quantity of described stirring ring is two, and connecting plate is arranged on two and stirs between the ring, and connecting plate is fixing with two stirring rings simultaneously.

Further, described stirring ring is provided with retainer ring at the end away from connecting plate, and rotating shaft passes retainer ring, and an end of retainer ring is fixed with the end face that stirs ring, and retainer ring is provided with set bolt, and set bolt penetrates retainer ring and rotating shaft simultaneously.

Further, the bottom of described rotating shaft is provided with the collar, and the collar is linked on the outer wall of rotating shaft, and stirring vane is arranged on the outer wall of the collar.

Further, the quantity of described stirring vane is three, and the distance between the adjacent stirring vane is identical, and three stirring vanes are arranged on sustained height.

In sum, the beneficial effects of the utility model are: this agitator has reduced deadweight, can satisfy the stress requirement when stirring simultaneously, has reduced and can consume, and has reduced production cost.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Mark and corresponding parts title in the accompanying drawing: 1-cavity; 2-through hole; 3-rotating shaft; 4-stir and encircle; 5-retainer ring; 6-set bolt; 7-connecting plate; 8-collar; 9-stirring vane.

The specific embodiment

Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but embodiment of the present utility model is not limited only to this.

Embodiment:

As shown in Figure 1, a kind of simple and easy agitator, comprise that inside is provided with the rotating shaft 3 of cavity 1, the dead in line of the axis of cavity 1 and rotating shaft 3, be provided with several stirring vanes 9 in the bottom of rotating shaft 3, stirring vane 9 is fixed on the outer wall of rotating shaft 3, the outer wall of rotating shaft 3 is provided with several through holes 2, through hole 2 is communicated with cavity 1, and through hole 2 is arranged on the top of stirring vane 9, and the outer wall of described rotating shaft 3 is provided with several and stirs ring 4, and the inwall of stirring ring 4 contacts with the outer wall of rotating shaft 3, stir ring 4 and be provided with connecting plate 7, and stirring vane 9 is arranged on the below of stirring ring 4.In the utility model, rotating shaft 3 is for inner hollow and adopt metal material to make, and metal rotating shaft 3 moment of torsion when rotated all satisfies application conditions, distortion can not occur, and through hole 2 is that the heat in the cavity 1 is come out, the dual stirring that utilizes stirring vane 9 and stir ring 4, increase the efficient that stirs, and hollow rotating shaft 3 makes and self reduces, lighter when stirring, reduced energy consumption.

The quantity of described stirring ring 4 is two, and connecting plate 7 is arranged on two and stirs between the ring 4, and connecting plate 7 is fixing with two stirring rings 4 simultaneously.Two are stirred ring 4 is one group, many groups can be set in the utility model stir ring 4, can promote stirring efficiency more.

Described stirring ring 4 is provided with retainer ring 5 at the end away from connecting plate 7, and rotating shaft 3 passes retainer ring 5, and an end of retainer ring 5 is fixed with the end face that stirs ring 4, and retainer ring 5 is provided with set bolt 6, and set bolt 6 penetrates retainer ring 5 and rotating shaft 3 simultaneously.In the middle of two stirring rings 4 connecting plate 7 is set, constitutes one group and stir ring 4, be provided with retainer ring 5 on two stirring rings 4, to guarantee the fixing of its position, set bolt 6 is guarantee its position fixing, increases the stability of its work.

The bottom of described rotating shaft 3 is provided with the collar 8, and the collar 8 is linked on the outer wall of rotating shaft 3, and stirring vane 9 is arranged on the outer wall of the collar 8.The collar 8 is the structures that make things convenient for stirring vane 9 fixing, after making stirring vane 9 by the collar 8 be overall fixed on rotating shaft 3, stirring vane 9 whole taking-ups can be shortened the time of changing.

The quantity of described stirring vane 9 is three, and the distance between the adjacent stirring vane 9 is identical, and three stirring vanes 9 are arranged on sustained height.The quantity of stirring vane 9 does not limit, and stirs the concentration of material according to reality and selects, as long as guarantee that the distance between its adjacent stirring vane 9 is identical, stirring vane 9 is as material being stirred the parts that mix.

Take aforesaid way, just can realize the utility model preferably.

Claims (5)

1. simple and easy agitator, it is characterized in that: comprise that inside is provided with the rotating shaft of cavity (1) (3), the dead in line of the axis of cavity (1) and rotating shaft (3), be provided with several stirring vanes (9) in the bottom of rotating shaft (3), stirring vane (9) is fixed on the outer wall of rotating shaft (3), the outer wall of rotating shaft (3) is provided with several through holes (2), through hole (2) is communicated with cavity (1), and through hole (2) is arranged on the top of stirring vane (9), the outer wall of described rotating shaft (3) is provided with several and stirs ring (4), and the inwall that stirs ring (4) contacts with the outer wall of rotating shaft (3), stir ring (4) and be provided with connecting plate (7), and stirring vane (9) is arranged on the below of stirring ring (4).

2. a kind of simple and easy agitator according to claim 1 is characterized in that: the quantity of described stirring ring (4) is two, and connecting plate (7) is arranged on two and stirs between the ring (4), and connecting plate (7) is fixing with two stirring rings (4) simultaneously.

3. a kind of simple and easy agitator according to claim 1, it is characterized in that: described stirring ring (4) is provided with retainer ring (5) at the end away from connecting plate (7), rotating shaft (3) passes retainer ring (5), one end of retainer ring (5) is fixed with the end face that stirs ring (4), and retainer ring (5) is provided with set bolt (6), and set bolt (6) penetrates retainer ring (5) and rotating shaft (3) simultaneously.

4. a kind of simple and easy agitator according to claim 1 is characterized in that: the bottom of described rotating shaft (3) is provided with the collar (8), and the collar (8) is linked on the outer wall of rotating shaft (3), and stirring vane (9) is arranged on the outer wall of the collar (8).

5. according to any described a kind of simple and easy agitator in the claim 1 to 4, it is characterized in that: the quantity of described stirring vane (9) is three, and the distance between the adjacent stirring vane (9) is identical, and three stirring vanes (9) are arranged on sustained height.