SU1331546A1 - Mixer - Google Patents

Abstract

The invention relates to mixers of wet feed materials and allows for improved mixing quality. The mixer contains a horizontal case, with toroidal covers and openings for loading and unloading, in which a tapered working member is fixed to the horizontal rotating shaft by means of racks. The working body includes coaxially arranged spiral elements of larger and smaller diameters half the length of a turn with the opposite direction of winding. Spiral elements placed on opposite sides of the middle of the body, have the opposite direction of winding. The spiral elements of larger and smaller diameters nearest to the middle of the body, installed on one side of the middle of the body, are placed diametrically oppositely in relation to the shaft itself. The middle of the spiral elements of the same diameter are located with a mutual displacement of 90 and with a displacement along the axis of the shaft, equal to 1/2 of the pitch of the elements. The tool body is provided with additional half-turn-shaped spiral elements mounted on the shaft ends, placed in the cross section between the main spiral elements and winding in the same direction as the adjacent spiral elements of larger diameter. End caps are made convex. 2 hp f-ly, 5 ill. S (/) CO 00 ate 4 05

Description

The invention relates to agriculture, in particular to devices for mixing viscous and sticking feed materials to obtain uniform steamed mixtures intended for feeding pigs.

The purpose of the invention is to improve the quality of mixing.

Fig, 1 shows a schematic of the mixer, a general view; figure 2 - section aa in figure 1; on fig.Z - section BB in figure 1; 4 shows an embodiment of an additional element; Fig. 3 is a plot of the mixing inhomogeneity coefficient as a function of the distance between the middle of the elements.

The mixer contains a horizontal body 1 with end clamps 2 and 3 and openings for loading 4 and unloading 5. In the housing on a horizontal rotating shaft 6, by means of racks 7, there is fixed a belt member 8 including coaxially arranged spiral elements of larger diameter 9 and 10 and smaller diameter 11 and 12 half turns, having the opposite direction of winding. Spiral elements 9 and 10, 11 and 12, placed1 on opposite sides of the middle of the body, have the opposite direction of winding.

The spiral elements of larger and smaller diameter 9 and 11, 10 and 12, located on the same side from the center of the body, are located diametrically opposed to the shaft.

The middle of the spiral elements of the same diameter are located with an angular displacement of 90 relative to each other and displaced along the axis of the shaft, equal to 1/2 of the pitch of the elements.

The working body 8 is provided with additional spiral elements 13 and 14 installed at the shaft ends, half a turn in length, located in the cross section between the main elements. Elements 13 and 14 are wound in the same direction as the adjacent spiral elements 9 and 10 of larger diameter. The end caps 2 and 3 are filled with tight ones.

The mixer works as follows.

At the step of the material through the hole 4 include the drive of the working body 8 of the mixer. When rotating va

0

five

The la 6 (Fig. 1) viscous material under the action of coils 9 and 10 of larger diameter moves from the covers 2 and 3 to the middle of the case. Under the action of spiral elements 11 and 12 of a smaller diameter, the material moves from hole 5 to the corresponding end caps 2 and 3.

Under the action of the additional spiral element 13, the material moves both from the cover 2 parallel to the shaft, and in the diverging directions to the shaft and to the housing. The movement of material 5 is carried out briefly (pulsed), since the length of the element is about half of the turn. Similarly, the movement of the material is carried out from the additional spiral element 14.

When mounted on the shaft instead of the spiral elements 13 and 14 of the element 15, which is made divergent (Fig. 4), the material moves along the cover 2 from the shaft 6 to the periphery, where it is picked up by the elements 9 of large diameter. A similar movement and other krish1ki 3.

The moving material layer from the elements 11 flows in the opposite direction on a large diameter, where the reflected layer is picked up by the additional element 13. Due to this, a strong K | countercurrent of material with the formation of contiguous boundary layers of material at elements 11 and 9.

In addition, additional element 13 contributes to better movement with material backing from the lid to the middle of the body, and the material moves not with speeds alone, but with pulses due to the fact that the length of each element is half a turn and the middle of the elements from the middle of the body are shifted by 90, i.e. there is a gap between the adjacent elements. Due to this, the layer of material first moves with a certain speed, then stops abruptly, then abruptly begins to move, as the ends (of the snow elements lie in the same plane, and the midpoints of the elements are displaced along the shaft axis by 1/2 step. irregularity and breaks. By the middle of the body, the material flows alternately from one side

0

0

five

0

five

due to the coil of the element 9 of a larger diameter, then on the other hand at the midpoint of the coil of the element 10, where these two embedded layers meet with intensive mixing and movement towards the shaft. Due to the diametrically opposite arrangement with respect to the shaft 6 of the elements 9 and 10 closest to the middle of the body, the layer of material alternately flows from one half of the body to the other and vice versa, improving the mixing of material from different mixing areas.

The installation of the upper level sensor 16 at the end cover 3 between the extreme element 10 of the larger diameter and the additional element 14 will reduce the effect of accidental outliers of material falling on the level sensor 16. At a reduced material level, the outflow of moving material in the zone of the sensor 16 is directed from the end caps 2 and 3 at the expense of elements 9 and 10 and additional elements 13 and 14.

During the material mixing process, steam is fed from the holes 17 to steam the feed mixture intended for feeding to pigs.

Thus, the unevenness in the speed of movement with gaps in the flows, as well as movement with a better removal of material from the clamps with increasing contacting boundary layers, promotes more intensive mixing of the material. The mixing efficiency is particularly improved in high volume mixers, where the volume increases mainly due to the increase in the length of the mixer.

The proposed design of the mixer allows in comparison with the known

2. The mixer according to claim 1, about tl and h yu and and the fact that the working body is equipped with additional spiral elements installed at the ends in la, half a turn long, spaced in cross section by main spiral elements, winding in the same direction as adjacent spiral elements and devices to obtain a given high homogeneity of the mixture (Fig. 5). With a larger diameter. In addition, the discharge time is reduced3. The mixer according to claim 1, about tl and - of the material due to the backing of the material, such that the face of the covers 2 and 3 and their convexity. The ray-cover is made convex.

0

five

0

I lan

percent (cc mixing 5, the design allows the mixer energy not to increase.

Invention Formula

1. A mixer of predominantly wet feed materials, comprising a horizontal housing with end caps and openings for loading and unloading, in which a horizontal working shaft, comprising coaxially arranged spiral elements of larger and smaller diameters half a turn in length, is fixed by means of racks the opposite direction of winding, while the spiral elements located on opposite sides of the middle of the body, have the opposite direction of winding, o distinguished by the fact that, in order to improve the quality of mixing, 5 spiral and larger diameter spiral elements closest to the middle of the body, mounted on one side of the middle of the body, are diametrically opposed to the shaft, the middle of the spiral elements of the same diameter are 90 ° angularly offset from each other and with an offset along the shaft axis, equal to 1/2 of the pitch of the elements.

0

2. The mixer according to claim 1, about tl and h aa yu and the fact that the working body is equipped with additional spiral elements installed at the ends of the shaft, half a turn in length, placed in the cross section between the main spiral elements that are wound the same direction as the adjacent spiral of larger diameter. 3. The mixer according to claim 1, about tl and - is due to the fact that the end caps are made convex.

Ldn

Yuch P l

13

I / /.

i ts1 and s /

2 I d M 1 1 3 5

AT

12 8

 / (

g

Yu

YU

(rig.

{ri & .З

1/8 1b Sch 1g / H 1b 7 / (Rig.5

Editor P.Geershi

Compiled by N. Fedorov

Tehred V.Kadar Proofreader A.Zimokosov

Order 3753/6 Circulation 564 Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, st. Project, 4

Claims (3)

Claim 1. A mixer of predominantly wet feed materials, comprising a horizontal housing with end caps and openings for loading and unloading, in which a tape working body is mounted on the horizontal rotating shaft by means of racks, including coaxially arranged spiral elements of larger and smaller diameters half a revolution in length, having the opposite the direction of winding, while the spiral elements placed on opposite sides from the middle of the body have the opposite direction of winding, excellent in that, in order to improve the quality of mixing, the spiral elements of larger and smaller diameters closest to the middle of the casing, installed on one side of the middle of the casing, are diametrically opposed to the shaft, the middle of the spiral elements of the same diameter are 90 ° angular offset relative to each other friend and with an offset along the axis of the shaft equal to 1/2 the pitch of the elements. ! 2. The mixer according to claim 1, with respect to the fact that the working body is equipped with additional spiral elements installed at the ends of the shaft half the length of the coil, placed in cross section between the main spiral elements having a winding in the same direction as adjacent spiral elements of larger diameter. 3. The mixer according to claim 1, characterized in that the end caps are convex. Figure 1 FIG. 2 of FIG. H fig.Z FIG. 5