RU29673U1 - Continuous mixer - Google Patents

Description

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CONTINUOUS MIXER

The continuous mixer belongs to the mixing devices of bulk materials, mainly grain, and can find application in animal feed, bakery, chemical and other industries.

A device for mixing components 1 is known, which has a body, a cylindrical pipe with a rotating mixing device inside, containing a vertically mounted shaft, wheels with blades mounted on the shaft with the possibility of free rotation in opposite directions.

A disadvantage of the known device is that the shaft is fixed by a press fit or fit with a gap, but with a limiter, so the shaft cannot oscillate in the vertical direction. Because of this, the mixing intensity and the smoothing efficiency of the pulsating flow of the mixed components are reduced. In order to ensure the required quality of the mixture, the known device is equipped with additional impeller wheels, therefore, its metal consumption increases and material costs increase.

The problem the utility model is aimed at and the technical result of its use is to intensify the mixing process during mixing of bulk materials, increase the smoothing efficiency of the pulsating flow and reduce the metal consumption.

The technical result is achieved by the fact that the shaft with the impellers is mounted on the crosspieces with the possibility of vertical movement by means of springs based on the hubs of the 1 crosspiece, while the casing is equipped with beams fixed to its wall.

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The pulsating grain flow moving inside the mixer excites vertical vibrations of the shaft with impeller wheels, which actively throw particles of bulk material up and intensify the process of mutual penetration of layers of mixed materials into each other. The mixer body is equipped with beats fixed internally on its wall, which also help to mix the components of the mixture.

Particles of material inside the mixer acquire a complex vibrational-rotational movement and actively dampen the pulsation of the flow of moving material. This allows you to intensify the mixing process, effectively smooth out the pulsation of the flow and, therefore, to achieve uniform loading of crushing equipment. Improves, in addition, and the quality of the finished product.

To achieve intensive mixing of materials allows the oscillating shaft with three impeller wheels, in this regard, there is no need to install additional wheels, and this, in turn, leads to lower metal consumption and saving material costs. In addition, the quality of the mixture improves. By effectively smoothing the pulsation of the flow of bulk materials, the continuous mixer can reduce the uneven loading of crushing equipment (there will be no peak load on the crusher rotor), which will ultimately increase the life of the crushing equipment and reduce the likelihood of breakdowns.

In FIG. 1 is a longitudinal sectional view of a continuous mixer; figure 2 - high element I (bearing assembly).

The mixer (Fig. 1) contains a cylindrical body 1, on top of which there are nozzles 2 for supplying the components of the mixture. In the housing 1 above and below in the crosses 3 with the hubs there is a shaft 4 with the possibility of vertical movement. The shaft 4 is mounted on springs 5, which abut against the stops 6. On the shaft 4 are fixed wheels 7, 8 and 9 with the possibility of free rotation on bearings 10, 11 and 12. The blades of wheels 7 and 9 have a right angle

tilt, and lonasty wheels 8 - the left tilt angle. Under each wheel are beats - reflectors 13, rigidly connected with the housing 1.

The mixer operates as follows. The components of the mixture from the nozzles 2 enter the housing 1 of the mixer and,

moving down under the action of gravity, they interact with the blades of the wheel 7 and rotate it. Wheel 7 with its blades cuts the flow of the components of the mixture, changes the direction of its movement and moves the layers of the mixed components relative to each other. At the same time, the flow of particles presses on the blades of the wheel 7 and compresses the springs 5, and the shaft 4 moves down. The flow of components of the mixture pulsates in time, i.e. moves in portions, changing the pressure on the blades of the wheel 7, the pressure decreases and the springs 3 push the shaft with wheels 7, 8 and 9 up. The pulsating flow of bulk material serves as the exciter of oscillations of the shaft 4 mounted on the springs. 5. The blades of the wheel 7, oscillating together with the shaft 4, discard the particles of bulk material in the opposite direction and they are embedded in the oncoming flows of the components of the mixture, creating an additional mixing effect, while effectively smoothing the pulsation of the flow of components. Further, the bulk material meets the blades of the wheel 8 and rotates it in the opposite direction, because the blades of this wheel have a left (opposite) angle of inclination. The wheel 8, secondly, cuts the flow of bulk material, as a result of which the layers of the mixed components are secondly moved and embedded into each other, the pressure of the flow of components on the blades 7 and 8 increases, the springs 5 are compressed, the shaft 4 moves downward, making vibrations. Thus, there is an additional effect of mixing during vibration. In addition, the pulsation of the flow of bulk materials is smoothed out. Then the components are likewise mixed by the impeller 9, which oscillates together with the shaft 4. The wheel 9 rotates in the opposite direction relative to the wheel 8. The beams - reflectors 13 help to mix the components on the periphery. Thus, a multiple change in the direction of movement

the flow of bulk material, the rotating wheels 7, 8 and 9, as well as their simultaneous oscillation together with the shaft 4 on the springs 5, mix the components intensively and evenly. In addition, there is an active smoothing of the pulsating flow of the mixture components.

Thus, the proposed mixer of continuous action intensifies the mixing process, smooths the pulsation of the flow of the components of the mixture and significantly reduces the metal consumption, since the number of disks with blades in it is reduced to three.

Source of information: Patent of Great Britain N 1 546 401, cl. In 1C, 1979

Claims (1)

A continuous mixer comprising a vertical cylindrical body, a shaft mounted on the crosspieces, wheels with vanes mounted on the shaft with the possibility of free rotation in opposite directions, characterized in that the shaft with paddle wheels is mounted on the crosspieces with the possibility of vertical movement by means of springs based on the hubs of the crosses, while the body is equipped with beats mounted on its wall.