CN201692779U

CN201692779U - Stirring blade of stirrer

Info

Publication number: CN201692779U
Application number: CN2010202096612U
Authority: CN
Inventors: 伊恩·雷诺兹; 田亮; 孙耀红
Original assignee: CEM (CHANGZHOU) SPECIAL EQUIPMENT Co Ltd
Current assignee: CEM (CHANGZHOU) SPECIAL EQUIPMENT Co Ltd
Priority date: 2010-05-28
Filing date: 2010-05-28
Publication date: 2011-01-05
Anticipated expiration: 2020-05-28

Abstract

The utility model discloses a stirring blade of a stirrer, which comprises at least two blades fixed and uniformly distributed all around the excircle surface of a central hub. The radial section of each blade is in a circular arc shape; the concave surface of the blade faces to the bottom of the stirrer after the blade is installed; an included angle between a connecting line of two intersection points at the outermost ends in the connection positions between the blades and the central hub and a plane perpendicular to the axis of the central hub is 55 to 65 degrees; and an included angle between the connecting line of two ends at the tops of the blades and the plane perpendicular to the axis of the central hub is 10 to 15 degrees. The stirring blade solves the problems that the energy consumption of an existing stirring blade is high, the thrust force is insufficient, turbulent flow is easy to occur and the blade is fast to be worn down.

Description

A kind of stirrer paddle of mixer

Technical field

The utility model relates to mixer manufacturing technology field, especially a kind of stirrer paddle of mixer.

Background technology

Mixer is being smelted, medicine, building, chemical industry, the mine, a plurality of different industries such as environmental protection are used widely, during mixer work, stirrer paddle drives by shaft and rotates, the blade of rotation produces downward thrust and promotes material, when material is got to mixer tank body bottom, produce a reverse active force and continue to promote material along upwards operation of inner tank wall, the material that arrives tank body top promotes and operation downwards through blade once more, go round and begin again, finally reach the purpose that material is stirred, in this process, the shape and structure of stirrer paddle, installation form is to the energy consumption size of mixer, whether service life and mixing effect meet the requirements plays crucial effects, and present used mixing arm is generally the steel plate or the foundry goods of vertical bar, press certain fixed angle on shaft, material was bigger to the bump of its generation when the blade of this structure used, cause the blade wearing and tearing very fast, blade is to the downward thrust deficiency of material, lack significantly helical effect during the blade rotation, behind blade, be easy to generate bigger turbulent phenomenon, mixing effect and mixing quality are produced adverse influence.

The utility model content

The technical problems to be solved in the utility model is: overcome the deficiency in the prior art, a kind of stirrer paddle of mixer is provided, solves that the energy consumption that at present used stirrer paddle exists is big, thrust is not enough, be easy to generate problems such as turbulent phenomenon and blade wearing and tearing are very fast.

The technical scheme that its technical problem that solves the utility model adopts is: a kind of stirrer paddle of mixer, comprise and be fixed on center hub periphery at least two uniform blades all around, the radial section of described blade is a circular arc, the inner concave that rear blade is installed is towards the mixer bottom, the line of two joinings of blade and center hub junction outermost end and be 55 °～65 ° perpendicular to the angle between the plane of center hub axis, the line between the blade tip portion two-end-point and be 10 °～15 ° perpendicular to the angle between the center hub axis plane.

Further, the line of two joinings of described blade and center hub junction outermost end and be 60 ° perpendicular to the angle between the plane of center hub axis, the line between the blade tip portion two-end-point and be 12 ° perpendicular to the angle between the plane of center hub axis.

For obtaining more uniform fltting speed and effective suction movement, the width of described blade and center hub junction is greater than the width of top ends.

The beneficial effects of the utility model are: the utility model adopts the blade of arc variable-width, can produce powerful propulsive force, obtain more uniform fltting speed and more effective suction movement, the turbulent flow that the blade of this heterotype edge structure produces in the time of material can being stirred when using is reduced to minimum point, thereby reduce the excessive wear that brings blade owing to the bump of material, prolong blade service life, use the mixer energy consumption of this stirrer paddle lower, compare approximately with common mixer and can save energy about 60%.

Description of drawings

Below in conjunction with drawings and embodiments the utility model is further specified.

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

1. center hub, 2. blades, 3. inner concaves among the figure

The specific embodiment.

In conjunction with the accompanying drawings the utility model is further described now.The schematic diagram that these accompanying drawings are simplification only illustrates basic structure of the present utility model in a schematic way, therefore only shows the formation relevant with the utility model.

The stirrer paddle of a kind of mixer as shown in Figure 1, comprise two blades 2 that are separately fixed at center hub 1 periphery both sides, the radial section of blade 2 is shaped as circular arc, after being installed on the center hub 1, the inner concave 3 of blade 2 is towards the mixer bottom, the line of two joinings of blade 2 and center hub 1 junction outermost end and be 60 ° perpendicular to the angle between the plane of center hub 1 axis, line between the blade 2 top ends two-end-points and be 12 ° perpendicular to the angle between the plane of center hub 1 axis, mid portion is to get with reference to extension naturally by 12 ° of angles of top ends with 60 ° of angles of center hub junction then, at the width of blade 2 and center hub 1 junction width greater than top ends, top ends is the narrowest, here fastest, and the width of junction is the wideest, here speed is the slowest, in the effective length scope of blade 2, can produce more uniform fltting speed like this, thereby produce more effective suction movement, reach the effect that stirs, blade 2 also can be three or four of circumference uniform distribution, even it is more, the structure blade 2 of this heterotype edge, when material is stirred, can drop to minimum point to the turbulent flow that material produces in whipping process, thereby reduce the excessive wear of the blade that bump brought 2 between material and the blade, and the material that arcuate structure can make the top ends of blade 2 be stirred with narrow and small angle incision, blade 2 promotes material movement can producing powerful thrust with the formed smooth curved surface in the junction of center hub 1, during use, blade 2 is shape rotation and produce thrust towards the mixer bottom in the shape of a spiral under the mixer main shaft drives, and material is stirred.

Stirrer paddle described in the utility model can be according to manufacturing technique requirent, adopt different whipped forms, amount of agitation and stirring grade are installed on the mixer, select different driving powers for use rationally, after the rotary speed, can produce an axial flow pattern, make the low-speed region below the shaft drop to minimum point, fast and effeciently material is stirred, simultaneously, the stirrer paddle of this structure only needs a lower moment when using, thereby compares with the conventional blade that uses, and can cut down the consumption of energy greatly, according to measuring and calculating, approximately can save energy about 60%, thereby help prolonging service life of mixer, reduce the spare part that operation needs.

With above-mentioned foundation embodiment of the present utility model is enlightenment, and by above-mentioned description, the related work personnel can carry out various change and modification fully in the scope that does not depart from the utility model technological thought.Technical scope of the present utility model is not limited to the content on the specification, must determine its technical scope according to the claim scope.

Claims

1. the stirrer paddle of a mixer, comprise and be fixed on center hub (1) periphery uniform at least two blades (2) all around, it is characterized in that: the radial section of described blade (2) is a circular arc, the inner concave (3) that rear blade (2) is installed is towards the mixer bottom, the line of two joinings of blade (2) and center hub (1) junction outermost end and be 55 °～65 ° perpendicular to the angle between center hub (1) the axis plane, the line between blade (2) the top ends two-end-point and be 10 °～15 ° perpendicular to the angle between the plane of center hub (1) axis.

2. the stirrer paddle of a kind of mixer according to claim 1 is characterized in that: described blade

(2) and the line of two joinings of center hub (1) junction outermost end and be 60 °, the line between blade (2) the top ends two-end-point and be 12 ° perpendicular to the angle between the plane of center hub (1) axis perpendicular to the angle between the plane of center hub (1) axis.

3. the stirrer paddle of a kind of mixer according to claim 1, it is characterized in that: the width of described blade and center hub (1) junction is greater than the width of top ends.