RU2622164C1 - Spiral mill - Google Patents

Abstract

FIELD: technological processes.

SUBSTANCE: spiral mill contains a hollow body mounted on the platform with a vibrator mounted horizontally beneath the platform. The body is made spiral out of the hollow tunnel with a multi-thread helical surface along the perimeter of a coiled axis 0₁-0₁ around the central rectilinear axis 0₂-0₂ spiral body, provided with screw grooves inside at an angle to its spiral axis in the form of curved pockets with centers of curvature located inside the cross section of the hollow tunnel. Herewith the body is assembled from the sections in the form of identical in shape and size rings, folded from the same diamond-shaped bands, on which trapeziums are located, the lateral sides of which are located on the sides of the diamond-shaped band, and the upper and lower trapezium bases are located at an acute angle to the axis of the diamond-shaped band symmetry 0₃-0₃, and are fold lines spaced from each other at distances equal to the length of the curved pockets along the inner surface of the hollow tunnel of the spiral body. The sections are connected to each other by the sides of the trapeziums.

EFFECT: expanding the technological possibilities of the mill, increasing its productivity.

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Description

The invention relates to techniques for grinding solid materials and can find application in the construction, chemical and metallurgical industries, as well as in agricultural production.

Known vibration mill containing an elastically mounted housing with a vibrator ("Equipment of the factories of the paint and varnish industry", Publishing house "Chemistry", Leningrad branch, 1986, p. 371).

A disadvantage of the known device is the low intensity of grinding and limited technological capabilities due to the low intensity of mixing.

Closest to the proposed invention is a vibration mill (RF patent No. 2350391, MKI, V02C 17/02, publ. 03/27/2009, bull. No. 9), containing an elastically mounted base with a vibrator mounted vertically.

A disadvantage of the known device is the limited technological capabilities due to the circular shape of the trajectory of the oscillations of the body and the small grinding performance.

The technical result is the expansion of technological capabilities, increasing the productivity of a spiral mill.

The technical result is achieved in that in a spiral mill containing a hollow body with a vibrator resiliently mounted on the platform, loading and unloading devices, the body is rigidly mounted on the platform with a vibrator mounted horizontally below the platform and made spiral from the hollow tunnel with a multi-helical surface around the perimeter , coiled along a spiral axis 0 ₁ -0 ₁ around a central rectilinear axis 0 ₂ -0 _{2 of a} spiral case, equipped with screw grooves inside at an angle to its spur of the axis in the form of pockets of curvilinear shape, with centers of curvature located inside the cross section of the hollow tunnel and assembled from sections in the form of identical rings in shape and size, rolled up from the same diamond-shaped stripes, on which trapeziums are placed, the sides of which are located on the sides diamond strip, and the upper and lower bases of the trapezoid are arranged at an acute angle to the axis of symmetry of diamond stripes 0 ₃ -0 ₃ and fold lines are held apart by distances equal to the length ka manes a curved shape along the inner surface of the hollow tunnel spiral housing, the sections in the form of rings interconnected sides of trapezoids.

According to the patent literature not found a technical solution similar to the claimed, which allows to judge the inventive step of the proposed spiral mill.

The novelty is seen in the fact that the case is made spiral with a multi-helical screw surface around the perimeter, which increases the grinding performance and expands the technological capabilities.

The novelty is due to the fact that due to the installation of a vibrator horizontally below the platform with the body, the shape of the body oscillation path is changed from circular to vertical ellipse, which provides an increase in the specific gravity of the total kinetic energy (E _p ) by 1.3-1.5 times and increases productivity.

The novelty is that the spiral case with a multi-start screw surface around the perimeter is equipped with screw grooves inside and outside at an angle to the axis of the spiral of the center of symmetry axis 0 ₁ -0 _{1 of the} hollow spiral tunnel with a central straight axis 0 ₂ -0 ₂ , which increases productivity and expands technological capabilities.

The novelty is that the helical grooves of the spiral case are made in the form of curved pockets located inside the cross section of the hollow tunnel, which expands the technological capabilities and increases productivity.

The novelty is seen in the fact that the spiral case is mounted from sections in the form of identical rings, rolled up from the same diamond-shaped strips, on which trapeziums are located on the sides of the diamond-shaped strips, and the upper and lower bases of the trapezoid are at an acute angle to the axis of symmetry of the diamond-shaped stripe 0 ₃ -0 ₃ and fold lines are held apart by distances equal to the length of the pockets of the curved shape, the sections are connected to each other sides of the trapezoid, which improves performance .

The novelty of the proposal also lies in the fact that along the entire perimeter of the spiral casing, the passage section varies not only in shape but also in area, which provides alternate compression and expansion of the crushed materials in each section of the spiral casing, which means increased productivity and expanded technological capabilities.

The novelty of the invention lies in the fact that the trapezoid of the diamond-shaped strips from which the sections are mounted are not only inclined to each other, but also to the axis of symmetry of the spiral casing, therefore, the degree of compression of particles of crushed materials increases, the process of grinding materials is intensified.

The novelty also lies in the fact that the spiral casing is made of sections, the walls of which are not only inclined to each other, but also to the direction of the rotational movement of particles of crushed materials moving under the influence of vibration in planes perpendicular to the passage section of the spiral casing, which complicates the trajectories of their movement , increases the intensity of grinding materials and expands technological capabilities.

The novelty is due to the fact that the sections from which the spiral case is assembled around the perimeter are mounted from rhomboid strips with trapeziums of different sizes and sizes marked on them, so the intensity and efficiency of grinding materials increases, and technological capabilities expand.

The novelty also lies in the fact that the spiral casing is made of sections, the walls of which are not only inclined to each other, but also to the direction of the rotational movement of the particles of the crushed material moving under the influence of vibration in planes perpendicular to the passage section of the spiral casing, which complicates the trajectory of their movement , increases the intensity of grinding and expands technological capabilities.

The invention is illustrated by drawings, where: in FIG. 1 shows a spiral mill, a general view; in FIG. 2 is a section AA in FIG. one; in FIG. 3 - a visual image of a spiral drum with pockets of a curved shape; figure 4 is a visual representation of the relative position of the spiral 0 ₁ -0 ₁ along which a hollow tunnel with a multiple helical surface is folded around a central straight axis 0 ₂ -0 ₂ ; in FIG. 5 - one of the strips of a rhomboid shape, on which trapezoids are placed, the upper and lower bases of which are located at an acute angle to the axis of symmetry of the strip 0 ₃ -0 ₃ in the form of a fold line; in FIG. 6 - a rhomboid-shaped strip bent along the fold lines of the upper and lower trapezoid bases; in FIG. 7 is a visual representation of a diamond-shaped strip rolled into a ring when connecting the upper base of the trapezoid NN ¹ , the trapezoid N M M ¹ N ¹ with the upper base RR ^{1 of the} trapezoid GRR ¹ G ¹ .

The spiral mill (Fig. 1) contains a housing 1, rigidly mounted on the platform 2, elastically mounted on the base 4 using four rubber-cord cylinders 3. On the platform 2, the loading device 5 is rigidly fixed and a vibrator 6 with a horizontal axis is also rigidly attached to the bottom 2 rotation. The spiral mill is also equipped with a discharge device 7 for receiving finished products in the form of crushed material.

The vibrator 6 is mounted horizontally under the platform 2 and therefore provides the movement of particles of bulk materials inside the housing 1 under the influence of the vibrator 6 along elliptical trajectories. The housing 1 (Fig. 1, Fig. 2, Fig. 3) is made spiral. In FIG. 4 shows a visual representation of the relative position of the axis of the spiral - the center of the axis of symmetry 0 ₁ -0 _{1 of the} hollow tunnel, spiral casing 1 (in Fig. 4 the spiral casing is shown in cross sections 13 of the hollow tunnel with a multi-helical surface) and the central straight axis 0 ₂ -0 ₂ spiral housing 1.

Thus, around the perimeter, the spiral casing 1 is made in the form of a spiral-shaped tunnel with a multi-screw helical surface around the perimeter and is provided with screw grooves inside located at an angle α to the axis of symmetry of the spiral 0 ₁ -0 _{1 of the} center of symmetry axis (Fig. 3) of the spiral tunnel, coiled in a spiral 0 ₁ -0 ₁ around the central axis 0 ₂ -0 _{2 of the} spiral housing 1.

The helical grooves of the spiral casing 1 (Fig. 7) are made in the form of pockets 14, 15, 16, 17, 18, 19 on the inner surface and pockets on the outer surface 20, 21, 22, 23, 24, 25 of the spiral-shaped tunnel (Fig. 7) in the form of pockets of curvilinear shape with centers of curvature located inside the cross section of the hollow tunnel, and assembled from the section in the form of rings 26 of the same shape and size, connected to each other by the sides 27 and 28 (Fig. 7).

The result is a hollow tunnel of the spiral casing 1 (Fig. 1, Fig. 2, Fig. 3) with the axis of the spiral - the center of the axis of symmetry 0 ₁ -0 _{1 of the} spiral casing 1, twisted around the central straight axis 0 ₂ -0 _{2 of the} spiral casing 1 diameter D _cp , with the formation of a spiral casing 1 with an outer diameter of D _max and an inner diameter of D _min (Fig. 4).

In this case, the hollow spiral casing 1 with a multiple helical surface is provided with helical grooves in the form of pockets 14, 15, 16, 17, 18, 19 and pockets 20, 21, 22, 23, 24, 25 along the outer surface of the spiral casing 1 (Fig. 4 , Fig. 7).

Thus, a hollow tunnel with its own spiral axis of symmetry 0 ₁ -0 _{1 is} rolled along this spiral 0 ₁ -0 ₁ around the central rectilinear axis 0 ₂ -0 ₂ and forms a spiral case 1 (Fig. 4, Fig. 3).

Section 26 is made in the form of a ring (Fig. 7) and is mounted from a diamond-shaped perforated strip 29.

A trapezoid 30, 31, 32, 33, 34, 35 is placed on the diamond-shaped strip 29, the lateral sides of which are located on the lateral sides of the diamond-shaped strip 29, and the upper and lower bases of these trapezoids (Fig. 5) are located at an acute angle β to the axis of symmetry of the diamond-shaped strip 0 ₃ -0 ₃ and are the fold lines (Fig. 5, Fig. 6), located from each other at distances equal to the scan length of the perimeter of the curved pockets (Fig. 7) of the spiral casing 1, made in the form of a hollow tunnel.

In FIG. 5 shows the trapezoid:

N M M ¹ N ¹ - the first trapezoid;

M FF ¹ M ¹ - the second trapezoid;

F E E ¹ F ¹ - the third trapezoid.

Moreover, NN ¹ is the smallest of all the upper bases of the trapezoid located on the diamond-shaped strip 29 below the fold line E Е ¹ and the above three trapezoid (first, second, third).

In FIG. 5 also shows the trapezoid:

E SS ¹ E ¹ - the fourth trapezoid;

SGG ¹ S ¹ - fifth trapezoid;

GRR ¹ G ¹ - the sixth trapezoid.

Moreover, RR ¹ is the smallest base of all the upper bases of the trapezoid located on the diamond-shaped strip 29 above the fold line E Е ¹ , which for all trapezoids, in turn, is the largest of all the lower bases from the fourth trapezium to the sixth trapezoid.

Thus, the fold line E E ¹ is not only the lower base of the trapezoid ESS ¹ E ¹ , but also the longest base of the trapezoid FEE ¹ F ¹ and the longest of all the lower fold lines of the diamond-shaped strip 29 and ring 26 (Fig. 7).

Moreover, the fold lines NN ¹ and RR ¹ are the shortest of all the fold lines of the diamond-shaped strip 29 and the ring 26 and NN ¹ ≡RR ¹ .

The ratio of the length of the fold line EE ¹ and NN ¹ (RR ¹ ) determines the value of step S _{1 of the} spiral 0 ₁ -0 ₁ , and therefore the step of winding the hollow tunnel around the straight axis 0 ₂ -0 _{2 of the} spiral casing 1.

For example, in FIG. 5 fold lines L ₆ <L ₅ <L ₄ <L ₃ and L ₀ <L ₁ <L ₂ <L ₃ .

The diamond-shaped strip 29 is bent along the straight fold lines, which are the base of all six trapezoids and parallel to each other (Fig. 5).

Then the diamond-shaped strip 29 is bent along the fold lines with the formation of semicircles 36 (Fig. 6) and then rolled up into a ring (Fig. 7) with pockets of curved shape 14, 15, 16, 17, 18, 19 with centers of curvature located inside the cross section rings 26.

Sections in the form of identical rings 26 are then connected to each other sequentially by the lateral sides 27 and 28 so that all fold lines are a continuation of the fold lines of the same ring of the previous ring.

As a result of such an assembly, helical lines are formed along the perimeter of the hollow spiral casing 1, shown in FIG. 3, for example, thickened lines 37-38, 39-40.

Thus, the spiral case 1 (Fig. 1, Fig. 2, Fig. 3) is made around the perimeter in the form of a multiple helical spiral surface with helical lines around the perimeter of the spiral case 1 (two of the helical lines shown in Fig. 3 with thickened lines 37, 38, 39, 40) and screw grooves inside and outside of the spiral housing 1 in the form of pockets of curved shape 14, 15, 16, 17, 18, 19 on the inner surface and screw grooves on the outer surface 21, 22, 23, 24, 25, 26 at an angle α to the spiral axis of the hollow tunnel of the spiral shape of the spiral casing 1.

Spiral mill operates as follows.

The mill operates as follows.

The perturbing force of the vibrator through the walls of the spiral casing 1 is transmitted to the particles of crushed materials inside the spiral casing 1 and entering the spiral casing 1 in a continuous stream through the loading device 5. The particles of crushed materials rotate along vertical elliptical trajectories, while the process of grinding materials occurs. In this case, the particles of the crushed materials not only intensively interact with each other, but also under the influence of vibration rotate in a plane perpendicular to the through section of the spiral casing 1. Since the spiral casing 1 has cross-sectional dimensions, shape and location as the crushed materials move from loading to unloading is changed, then the violation of the movement of particles of crushed materials, which in this case interact with pockets of curved shape of the inner walls, is aggravated piralnogo body 1, i.e. there is an increase in the intensity of the crushed materials. The presence of helical surfaces and helical lines around the perimeter of the spiral casing 1 contributes not only to the complication of the trajectories of particles of the crushed materials, but also to their movement along the bore of the spiral casing 1 towards the discharge side and to the unloading device 7.

When particles of the crushed materials move along the bore of the spiral casing 1 due to changes in the bore in shape and size, compression and rarefaction zones are formed in each section of the spiral casing 1 throughout its volume, which also intensifies the process of grinding materials and expands technological capabilities.

Technical and economic advantages arise due to the fact that the spiral case is made spiral from a hollow tunnel with a multi-start screw surface along the perimeter, coiled in a spiral, which provides increased productivity and expansion of technological capabilities, as well as due to the installation of a vibrator horizontally below the platform with a spiral case 1 that provides an increase in the specific gravity of kinetic energy by 1.3-1.5 times and increases productivity.

Claims (1)

A spiral mill containing a hollow body mounted on a platform with a vibrator, loading and unloading devices, characterized in that the body is rigidly mounted on a platform with a vibrator mounted horizontally below the platform, is made spiral from a hollow tunnel with a multi-helical surface around the perimeter of which is rolled along a spiral axis 0 ₁ -0 ₁ around a central linear axis 0 ₂ -0 ₂ volute casing provided with helical grooves in an angle to its axis in a spiral form pockets crooked frost-shaped with centers of curvature located inside the cross section of the hollow tunnel, and assembled from sections in the form of rings of the same shape and size, rolled up from the same diamond-shaped stripes, on which trapeziums are placed, the sides of which are located on the sides of the diamond-shaped strip, and the upper and the lower base of the trapezoid are arranged at an acute angle to the axis of symmetry of diamond stripes 0 ₃ -0 ₃ and fold lines are located apart by distances equal to the length of the curved shape of the pockets in morning surface of the hollow tunnel spiral housing, the sections in the form of rings interconnected sides of trapezoids.

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