JPS59120255A - Apparatus for conveying, grinding and mixing substance to beconveyed having high solid content - Google Patents

Abstract

1. A device for conveying, grinding and mixing conveying material with a high solids content, having a cylindrical housing (1) and a stub axle (9) projecting therein, an inlet port arranged opposite the latter and at least one outlet port (12) which is perpendicular, near-perpendicular or tangential to the axis of the stub axle, as well as vanes (30) or paddles (41) arranged on the stub axle to extend to the outlet port, characterized in that there are arranged on the inner surface of the housing annuli (6, 7, 43, 44) which are at least in part separated, their actual distance apart determining the degree of communication of the material to be treated, and in that the vanes or paddles (30, 41) have outer edge contours corresponding to the cross-sections of the separated annuli (6, 7, 43, 44).

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is an apparatus for conveying and pulverizing substances having a high solids content, which comprises a cylindrical housing, a shaft end I7 protruding into the housing, and a shaft end. at least one discharge 1-11 provided in the peripheral wall of the housing, located opposite the supply ``J'', at least one discharge 1-11 located at the end of said shaft, said supply
It relates to something consisting of a plate-like body (wing) that extends up to

DE 2809710.9-23 discloses such a device. The cylindrical housing of this known device has inwardly directed teeth that interlock with matching teeth on the plate. The substances to be conveyed and mixed pass through holes or slots into a 1 1/7"'1' car and are led to a discharge 11. The inner wall of the housing is
It consists of partially cylindrical annular segments separated by a wedge in the effective position.

The invention is based on the problem of improving the grinding effect and the movement (passage) of the ground conveyed material without increasing it.

This problem is solved according to the invention by providing rings on the inside, at least in part, whose mutual spacing determines the degree of comminution of the material to be conveyed, corresponding to the cross-section of the spaced rings. This problem is solved by providing a plate-shaped body with a shaped outer edge. This device is mainly suitable for conveyed substances in the form of valves containing fluid.

The inner surface of the housing is thus divided into several rings,
The substance to be transported flows out from between them. The transported material is then sent to the outlet. The ring is, for example, 2fflIl+
, possibly with a spacing of less than 111,115 mm, into the housing, and the pulverized material to be conveyed flows out not only from one point of the spacing between the rings, but evenly from all points of the spacing between the rings. The substance to be transported may consist of large and small lumps,
It may be a liquid, slurry, or dry, but must be free-flowing on the discharge side.

According to a preferred embodiment of the invention, the rings have different cross-sections, which provides the possibility of increasing the crushing effect compared to, for example, the case of interlocking tooth surfaces. . However, it does not nevertheless inhibit the movement of matter through the spacing between the links.

The rings may have different thicknesses.

According to an improved embodiment of the invention, at least one ring has radially inwardly directed projections. These inwardly directed projections have a rectangular cross-section and may be axially recessed. Also, these depressions may have different dimensions. These depressions are generally rectangular.

The at least one ring is preferably circular and has a smooth inner surface.

If two plates are provided at the end of the shaft, they extend linearly in the radial direction. These plates also extend linearly in the axial direction.

According to a preferred embodiment of the invention, the outer edge of the plate-like body has a meandering shape.

For economic reasons, only two types of rings are used. Of course, the outer edges of the plates may be at least partially tooth-shaped and the inner surfaces of the rings have a corresponding shape.

As is known per se, the inner edge of the plate and the front surface of the shaft end form a suction space, which is truncated and conically directed towards the feeder.
It extends over at least half the length of the housing, preferably two-thirds to three-quarters of the length.

Since the opposing surfaces of the individual rings and plates determine the crushing effect, these surfaces are much wider than, for example, that of a toothed housing with a corresponding inner toothed outer edge of the plate. . However, in addition to this effect, the crushed material is allowed to flow out from the spaces between the individual rings of the whole, as well as in the vicinity of the root holes of the teeth on the inner surface of the housing. Emissions are improved and improved. If, for example, four radially extending linear plates offset by 90' with respect to each other are provided, the conveying capacity of the device is greatly increased, for example if a grinding machine (a crushing device ha
ving a swash plate and a
This is about a 30% increase compared to toothing.

According to a particularly preferred embodiment of the invention, at least some of the rings are fixed to the plate and are located opposite the initial exit. What is achieved by this embodiment is that the material to be conveyed is crushed between the facing surfaces and flows out radially directly or forcefully or suctioned towards the outlet.

In addition to the ring attached to the body plate, this embodiment can be modified to have a ring located on the inner surface of the housing.

Even if, for economic reasons, it is advantageous to make the individual rings identical in shape, in the embodiment described above,
The individual rings are arranged inside the housing, e.g.
It can have different profiles on the plane extending perpendicular to the axial direction.

All rings preferably consist of at least two parts and are attached to the board by interlocking.

A spacer can be provided between the rings fixed inside the housing. The individual rings are mounted such that all rings are pressed against the cylindrical housing. Thereafter, a ring provided inside the housing is fixed. All rings, both on the plate and on the inside of the housing, are fixed to the associated parts in a torsion-free manner.

The accompanying drawings depict representative embodiments of the invention. These will be explained in more detail below.

FIG. 1 is a partial longitudinal cross-sectional view of one embodiment of the invention.

FIG. 2 is a sectional view taken along line 2-2 in FIG. 1.

FIG. 3 is a partial cross-sectional view of another embodiment.

FIG. 4 is a sectional view taken along line 4--4 in FIG. 3.

In a cylindrical housing containing a tube 1 and having an arcuate opening 2 along its circumference, nine separate rings are centered and prevented from twisting by spacers 3.4 and fixed splines 5. Retained.

There are two types of rings, 5 types of 6 and 4 types of 7, which have different inner diameters.

Between the tube 1 and the outer surface 11 of the ring there is a generally cylindrical space which widens towards the side opposite the fixed spline 5 and extends to reach the aperture 2 later on. The opening 2 connects to a tangential outlet 12 having a rectangular cross section.

As can be seen in FIG.
It has projections 14 spaced apart from each other by 3, having a circular inner surface 15 and an axially extending recess 16. This recess 16 has a generally rectangular cross section and extends over the entire width of the respective ring 6. As can be seen in FIG. 2, these recesses 16 extend axially and vary in depth within the rings of type 6.

In the illustrated embodiment, the depth can vary between 1 and 5 mm, but the width of the recesses remains the same in all.

The ring 7 has a cylindrical inner surface 20 on which are also distributed rectangular depressions 21 . These recesses 21 of the ring also extend over the width of the ring and may be rectangular, the depth of the recesses 21 also being e.g.
m.

As can be seen in Figure 1, a space 22 is provided between each of the rings 6 and 7, which, as will be explained in more detail later, forces the outflowing conveyed material into the space between the rings. through which it is discharged and led to a generally cylindrical space such as that led to the outlet 12. There are 8 spaces in total 2
The degree of size reduction (comminuted) of the conveyed material discharged from 2 is therefore determined by the dimensions of this space. These spaces are distributed over the entire housing, so that the material led to the outlet is crushed uniformly with maximum precision.

At the tip 9 of the shaft are four plate-like bodies (hereinafter simply referred to as plates) 30.
, each of which is offset by 90° and extends radially and also extends axially.

The plate 30 has an outer edge 31 with a serpentine shape corresponding to the profile of each separate ring. The inner edge 32 of the respective plate 30 opens frustoconically towards the feed opening 33, so that the substance to be conveyed entering the suction space 34 is carried away in a substantially radial direction. After being crushed, it is pushed out to the discharge port 12.

In addition to a high degree of size reduction, advantageous mixing effects are obtained and it is therefore clear that this device is also suitable for homogenizing and emulsifying certain conveyed substances with high solids content values. It is.

Once the individual rings 6.7 have been inserted, they are fixed to the housing by means of rings 8. The plate can be inserted through the axially extending groove 13' of the ring and then fixed to the shaft.

The individual rings are slid along the spacers 3 or 4 during insertion and then fixed in position by fixing splines 5.

Multiple ring profiles can be varied,
Crucially, between a plurality of individual rings there is a spacing, for example 2 or only 1 mm wide, through which the substance to be transported is transported and distributed almost over the entire cross section. The cylindrical hollow space is extruded radially everywhere.

As can be seen in FIG. 1, the ring 8 has internal teeth 36 onto which a ring 37 is pressed and a spacer ring 38 axially fixing the individual rings 6.7. The spaces 22 can be formed between the individual rings, for example by projections provided on the sides 39 of the respective rings.

In this exemplary embodiment, the outer edge of plate 30 is convex-concave, but of course may have a different profile, e.g.
It may be similar to a zigzag. It is also possible to increase the number of ring types, to increase the spacing between the individual rings, and to replace the rectangular recesses 16 and 21 with recesses of a different shape in the axial direction.

According to another embodiment, not shown, the rings 7 have a smooth inner surface, so that these rings do not have recesses 21.

The cross-section of the liner in the illustrated embodiment is generally T-shaped; of course, a rectangular profile could also be employed instead of this form of force.

In situ, the square space 22 for grinding extends over the entire thickness of the ring 7.

The embodiment described in connection with FIGS. 3 and 4 is 0.6 mm,
Alternatively, size reduction (pulverization) to 0.4 mm or less, for example about 0.2 mm, is achieved, which is particularly suitable. The apparatus described in connection with Figure 1.2 is primarily suitable for pulpy or thick fluids, and the comminution of substantially dry conveyed material is difficult, if not impossible. In contrast, the device of this embodiment is also suitable for materials to be comminuted to smaller dimensions and in a dry state.

The basic configuration of the embodiment shown in Figure 3.4 is similar to the previous embodiment, but in this case the four plates attached to the support 40 are arranged in straight lines in the axial and radial directions. It is extending. However, they can be bent in one direction or in both directions. In this embodiment two types of rings 43 and 44 are provided, ring 43 having a rectangular cross section and fixed to plate 41, for example by fitting or welding, and ring 44 twisted onto the inner wall of housing 46. Fixed in a stress-free manner.

The rings 44 each have a wide base 47 and a rectangular projection 48 similar to projection 14 in the embodiment of FIGS. However, this protrusion is a large dent (groove) extending in the axial direction.
has. 'After being coarsely pulverized by means such as a flue conveyor, the rice grains or small-sized material to be conveyed, which enters the funnel-shaped feed opening, are conveyed to the outer edge of the plate 41. The comminution of the material to be conveyed to small dimensions continues in the slots 50, 51, 52 provided between the protrusion 48 and the plate, after which the material enters the annular slot-like space 55 through the slots 53,54. , the finally pulverized material to be conveyed passes through the annular slot 60 and exits from the outlet 61.
carried to. The particle size of the discharged material is determined by the ring 43
and the radially extending walls of the ring 4 and the spaces 53 and 5
4.

The apparatus described in connection with FIGS. 3 and 4 is assembled as follows.

The individual ring units 43, 44 are arranged alternately at each shaft end 40.
It is fixed to a plate 41 and a housing 46 fixed to. ,
The ring 43 is fastened to the plate in the form of a half ring. In order to ensure that the rings 44 have the intended spacing (as much as a fraction of a millimeter), between adjacent rings 44 there are three or more strips distributed over the entire circumference of the two half-rings. A spacer 61 is provided. The spacer 61 has a thickness of approximately half the depth of the annular slot 55 and ensures a precisely defined position of the ring 43 fixed to the plate 41 between the rings 44 fixed to the inner wall of the housing. do.

The particularly large friction surfaces between the two types of rings cause a rapid and relatively high degree of comminution of the material, which is conveyed radially outwards and leaves the device through the outlet 61. If necessary, a suction pump may be provided at the outlet to increase the conveying effect.

[Brief explanation of drawings]

FIG. 1 is a partial longitudinal cross-sectional view of one embodiment of the invention. FIG. 2 is a sectional view taken along line 2-2 in FIG. 1. FIG. 3 is a partial cross-sectional view of another embodiment. FIG. 4 is a sectional view taken along line 4--4 in FIG. 3. In these drawings, 1: Housing (tube), 9: Shaft end, 33: Supply port, 2: Opening, 12: Discharge port, 30: Plate-like body, 6, 7: Ring Patent Applicant Herscheltechnik- Golator Gesellschaft Mit Beschrenchtel Haftung Agent Patent Attorney Masahiro Matsui (1 other person) 2-12

Claims (1)

[Claims] 11. a cylindrical housing for conveying and grinding and mixing a substance to be conveyed with a high solids content; a shaft end projecting into the housing; a feed opening located on the opposite side of the shaft end;
at least one discharge port provided in the peripheral wall of the housing; a plate-shaped body (wing) fixed to the shaft end and extending to the supply port;
a plurality of rings are disposed inside the housing, at least in part thereof, the spacing between each of which determines the degree of dimensional reduction of the material to be conveyed therethrough; and wherein the plate-like bodies have outer edges shaped to correspond to the cross-sections of the spaced plates. 2. Device according to claim 1, characterized in that the rings have mutually different cross sections. 3. A device according to claim 1 or 2, characterized in that the rings have different JV profiles. 4. Device according to any one of claims 1 to 3, characterized in that at least -. rings have radially inwardly directed projections. 5. Device according to claim 4, characterized in that the projection is rectangular in cross-section and has an axial recess. 6. Device according to claim 5, characterized in that the recesses of the ring are of different dimensions. ? . The device according to claim 5 or 6, wherein the recess is approximately rectangular. 8゜The device according to any one of claims 1 to 7, characterized in that at least one ring has a circular smooth inner surface, Claims 9 and 4If+i' The device according to any one of items 1 to 8, characterized in that it has at least two plate-like bodies, and the plate-like bodies extend linearly in the radial direction. . 10. In the device according to claim 9,
A plate-like device that extends linearly in the axial direction. 11. The device according to any one of claims 1 to 10, characterized in that the outer edge of the plate-like body has a meandering shape. 12. The device according to any one of claims 1 to io JJ4, wherein the outer edge of the plate-like body is at least partially tooth-shaped, and the inner surface of the rings has a corresponding shape. A device characterized by: 13. Feature 1: In the stone fitting according to any one of claims 9 to 12, the inner edge of the plate-like body (wing) and the front surface of the shaft end form a known suction space. 14.41 Claims No. 1 L m 13 Item number 1
Device according to any of the above publications, characterized in that at least part of the ring is fixed to the plate and faces opposite the ejection slot. 15. The device according to claim 14, which removes a ring placed inside the S7 singe in addition to the ring taken into the plate-like body. 16. The fabric according to claim 14 or 15, in which every ring consists of at least two parts and is assembled into a plate by assembly 1'/-. ” A device characterized by being pierced. 17. The device according to any one of claims 14 to xszz4, characterized in that a spacer is provided between the rings provided inside the housing. 18. The device according to any one of claims 14 to 17, characterized in that the plate-shaped body is pushed into the inner wall of the cylindrical housing together with all the rings. The outfit δ.