WO2006007778A1 - A Bladed Mixer - Google Patents

Abstract

The present invention discloses a bladed mixer which belongs to mixing mechanical field. A mixing drum is located in its body, and a staypole is installed on a revolution axis located in the mixing drum, and blades through fastly flow zone are fixed at the head end of the staypole through slowly flow zone to constitute a rotor. The key point is that some transitional stirring elements through the slowly flow zone is located on the rotor. The transitional stirring elements can be installed on the revolution axis directly, also can be installed on the center section of the staypole on the revolution axis, or be installed on a support less thanthe staypole length on the revolution axis. The structure of the present invention is novel, rational and simple, easily produced and not costly. The technical projects of the present invention solve the difficult problem which have baffled the development of the bladed mixer for a long term. The present invention can be applied to a monoaxial bladed mixer, also can be applied to a biaxial bladed mixer, and has favorable value of extending applications.

Description

 Paddle mixer

 The invention relates to a paddle mixer and belongs to the technical field of mixers.

Background technique

 The existing paddle mixer includes a body, a mixing drum disposed on the body, a rotating shaft disposed in the mixing drum, and a rotor is mounted on the rotating shaft through a strut to form a rotor. One end (tail end) of the strut is fixedly connected to the rotating shaft, the tail end of the strut extends out of the rotating shaft, and the other end of the strut is connected by bolts to connect the blade, and the mounting angle of the blade on the rotating shaft is at an angle with respect to the axial center of the rotating shaft. When the mixer is in operation, the mixing mixture in the mixing drum has a different flow rate, and there are a fast flow zone and a slow flow zone. The material in the blade and its vicinity forms a shearing surface under the action of the blade, and the mass or particles of each material slide and collide with each other, and the shearing force is large when mixing, forming shear mixing; meanwhile, the material is The blade leaf surface is driven to turn to the blade surface in the other direction to form convection mixing; in the above region, there is diffusion mixing between the materials; therefore, the material flows rapidly in the blade and its vicinity, forming a mixture The fast flow area of the material inside the machine; the material near the rotating shaft and its vicinity depends on the friction between the rotating shaft and the material and the rotation of the strut to drive the material. The material flow is mainly affected by convection mixing and diffusion mixing. Moreover, there is no paddle blade facing the material in this section, and the convective mixing and shear mixing are relatively small; therefore, the material flow rate is slow, forming a slow flow zone, which affects the mixing speed and mixing precision of the mixer. In order to improve the working efficiency and quality of the mixer, the research department and the production enterprise have carried out a lot of research and development. However, there is a lack of research on the mixing and stirring force of the mixer to accelerate the materials in the slow flow zone, so that the paddle mixer stirs the mixture. The quality and efficiency of the material has not increased significantly over the years.

Summary of the invention

The object of the present invention is to improve the existing paddle mixer by A paddle mixer is provided which is advantageous for accelerating the mixing speed of the slow flow zone.

The object of the present invention is achieved as follows: a paddle mixer comprising a mixing drum provided on the body, a strut mounted on a rotating shaft provided in the mixing drum, and a fixed fast flow installed at the end of the strut passing through the slow flow zone The rotor composed of the blade is characterized in that a slow flow zone transition agitating member is arranged on the rotor. The transition stirrer is directly mounted and coupled to the rotating shaft. The transition agitating member is mounted to a middle portion of the strut connected to the rotating shaft. The transition stirrer is mounted on a post attached to the rotating shaft. The transition stirrer is a sub-blade, a spiral belt or a stirring ring. The transition agitating member is a sub-blade or a stirring ring, and the auxiliary paddle or the agitating ring is directly connected to the rotating shaft. The transition agitating member is a secondary blade, and the ^j auxiliary blade is connected to a middle portion of the strut on the rotating shaft. The transition agitating member is a spiral belt, and the spiral belt is installed and connected to the middle of two adjacent struts on the rotating shaft. The transition agitating member is a sub-blade, and the auxiliary blade is mounted on a strut connected to the rotating shaft. The transition stirrer is a spiral belt, and both ends of the spiral belt are mounted on the pillars connected to the rotating shaft. The pillar is a tail rod of the rotating shaft extending in the opposite direction of the strut. The pillar is an additional column on the rotating shaft.

 The structure of the invention is novel and reasonable, simple in production and manufacture, and low in cost. The technical scheme makes the material in the slow flow zone not only be subjected to diffusion mixing during the mixing process, but also increases the shearing action of the above materials due to the addition of the transition agitating member, and also increases the effect of convection mixing. Speed up the mixing speed and improve the quality of mixing. The invention solves the problem that the development of the paddle mixer is plagued for a long time, and is suitable for the single-axis blade mixer and the application of the double-axis blade mixer, and has good popularization and application value.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view showing the structure in which a sub-blade of the present invention is directly mounted and fixed on a rotating shaft;

2 is a schematic structural view showing the stirring ring of the present invention directly mounted on a rotating shaft; 3 is a schematic view showing another structure of the auxiliary blade of the present invention directly mounted on the rotating shaft;

 Figure 4 is a schematic view showing the structure of the middle portion of the strut in which the auxiliary blade of the present invention is mounted and fixed on the rotating shaft;

 Figure 5 is a schematic view showing the structure of the struts of the auxiliary blade mounted on the rotating shaft in the opposite direction of the rotating shaft of the rotating shaft;

 Figure 6 is a schematic view showing the structure of the auxiliary blade of the present invention mounted on the additional column on the rotating shaft;

 Figure 7 is a schematic view showing the structure of the middle portion of the strut to which the spiral belt of the present invention is attached and connected to the rotating shaft;

 Figure 8 is a schematic view showing the structure of the spiral belt of the present invention attached to the tail rod of the rotating shaft which is connected to the rotating shaft in the opposite direction;

 In the figure: 1 shaft, 2 struts, 3 blades, 4 blades, 5 spiral belts, 6 pillars, 7 stirring rings.

detailed description

 Example 1: A mixing drum was attached to the body, a rotating shaft was mounted in the mixing drum 1, a strut 2 was attached to the rotating shaft 1, and a paddle 3 was attached to the strut 2. The auxiliary paddle 4 is welded to the shaft between the two struts 2 on the rotating shaft, and the axial distance between the auxiliary blade 4 and the two struts 2 is equal.

 Embodiment 2: A mixing drum is installed on the body, a rotating shaft is mounted in the mixing drum 1, a strut 2 is mounted on the rotating shaft 1, and a paddle 3 is attached to the strut end. The mixing ring 7 is welded to the shaft between the two struts 2 on the rotating shaft, and the axial distance between the stirring ring 7 and the two struts 2 is equal.

 Embodiment 3: A mixing drum is mounted on a body, a rotating shaft is mounted in the mixing drum 1, a strut 2 is attached to the rotating shaft 1, and a paddle 3 is attached to the end of the strut 2. In the middle section of the stay 2, the auxiliary blade 4 is attached by bolts, and the direction of the auxiliary blade 4 can be adjusted by the mounting bolts. The secondary blades are angled or opposite to the direction in which the blades of the same strut end are mounted.

Example 4: Install a mixing drum on the body, and install the shaft 1 in the mixing drum. The strut 2 is mounted on the rotating shaft 1, and the paddle 3 is mounted on the strut end. A spiral belt 5 is mounted between two adjacent struts 2 on the rotating shaft, and the two ends of the spiral belt 5 are connected and fixed on the adjacent two struts or the struts are extended in the opposite direction from the tail shaft of the rotating shaft. The direction of the spiral belt propelling material is at an angle or opposite to the direction of the propeller propulsion material at the end of the strut connected at both ends of the spiral belt.

 Embodiment 5: A mixing drum is mounted on a body, a rotating shaft 1 is mounted in the mixing drum, a strut 2 is mounted on the rotating shaft 1, and a paddle 3 is mounted on the strut 2. The struts are extended in the opposite direction of the struts, or the mounting struts are added to the rotating shafts. The auxiliary struts 4 are mounted on the stern or on the rotating shaft. It is also possible to mount a connecting spiral belt on two adjacent pillars 6 which are installed on the rotating shaft. The direction of the propeller material 4 or the spiral belt 5 propelling material is at an angle or opposite to the direction of the propeller propulsion material on the adjacent strut 2.

Claims

Rights request A paddle mixer comprising a mixing drum disposed on a body, a strut mounted on a rotating shaft disposed in the mixing drum, and a fixed fast flow zone paddle mounted at an end of the strut through the slow flow zone The rotor is characterized in that a slow flow zone transition agitating member is provided on the rotor.  2. A paddle mixer according to claim 1 wherein said transition agitator is mounted directly to the shaft.  3. A paddle mixer according to claim 1 wherein said transition agitating member mounts a midsection of the strut attached to the shaft.  4. A paddle mixer according to claim 1, wherein said transition agitating member is mounted on a post attached to the rotating shaft.  The paddle mixer according to any one of claims 1 to 4, wherein said transition agitating member is a sub-blade, a spiral belt or a stirring ring.  6. A paddle mixer according to claim 2, wherein said transition agitator is a secondary paddle or agitating ring, and the secondary paddle or agitating ring is directly coupled to the rotating shaft. '  7. A paddle mixer according to claims 3 and 5, wherein said transition agitator is a secondary paddle and the secondary paddle is coupled to a midsection of the strut on the shaft.  8. A paddle mixer according to claims 3 and 5, wherein said transition agitating member is a spiral band, and the spiral band is attached to the middle of two adjacent struts on the rotating shaft.  9. A paddle mixer according to claims 4 and 5, wherein said transition agitator is a secondary paddle and the secondary paddle is mounted to a strut attached to the shaft.  10. A paddle mixer according to claims 4 and 5, wherein said transition agitating member is a spiral band, and both ends of the spiral band are attached to the strut attached to the rotating shaft. 11. A paddle mixer according to claims 4 and 10, characterized in that The struts are the struts of the shaft extending in the opposite direction of the struts.  12. A paddle mixer according to claims 4 and 10, wherein said struts are additional columns on the rotating shaft.