CN212820956U

CN212820956U - Screen mesh for screening hollow brick powder

Info

Publication number: CN212820956U
Application number: CN202021344917.0U
Authority: CN
Inventors: 神凤国
Original assignee: Xuzhou Hengji Weiye Building Material Co ltd
Current assignee: Xuzhou Hengji Weiye Building Material Co ltd
Priority date: 2020-07-09
Filing date: 2020-07-09
Publication date: 2021-03-30
Anticipated expiration: 2030-07-09

Abstract

The utility model discloses a screen for screening hollow brick powder, which comprises an inner screen, wherein the side wall of the inner screen is provided with a plurality of evenly distributed screen holes; an outer screen rotatably disposed on the inner screen; the side wall of the outer screen is provided with the screen holes which are in one-to-one correspondence with the inner screen; at least a part of the sieve pores of the inner sieve mesh and the sieve pores of the outer sieve mesh are overlapped to form a discharge hole; the screen openings have at least one conical tip, and when the outer screen rotates relative to the inner screen, the tips of the screen openings of the outer screen overlap the tips of the screen openings of the inner screen. This screen cloth can realize the regulation of sieve mesh size, can obtain the powder of equidimension not on the one hand, and on the other hand utilizes its changeable sieve mesh, when the jam appears, can be convenient for clear up the screen cloth through the size in regulation hole.

Description

Screen mesh for screening hollow brick powder

Technical Field

The utility model relates to an air brick screening plant technical field specifically is a screen cloth is used in screening of air brick powder.

Background

In the process of manufacturing the hollow brick, large coal gangue, shale and the like are firstly crushed and screened by a screening device to obtain powder, and the powder is mixed and stirred so as to facilitate the subsequent brick making. In the actual screening process, a screen with one specification is often used for screening, and when different particles need to be obtained, the screen needs to be replaced;

in addition, for a single-specification screen, due to the fact that the size of the screen holes of the screen is not variable, after the screen is used for a long time, a part of particles are clamped in the screen holes to affect subsequent screening, and therefore the screen needs to be cleaned regularly.

SUMMERY OF THE UTILITY MODEL

The technique that exists is not enough to the aforesaid, the utility model aims at providing a screen cloth is used in screening of hollow brick powder, and this screen cloth can realize the regulation of sieve mesh size, can obtain the powder of equidimension not on the one hand, and on the other hand utilizes its changeable sieve mesh, when the jam appears, can be through the size in regulation hole and the clearance screen cloth of being convenient for.

In order to solve the technical problem, the utility model adopts the following technical scheme:

the utility model provides a screen cloth is used in screening of hollow brick powder, include:

the inner screen is a hollow cylinder with two closed ends, the two closed ends are both provided with material ports, and the side wall of the inner screen is provided with a plurality of uniformly distributed sieve pores;

the outer screen is a hollow cylinder with openings at two ends, the outer screen is nested on the inner screen, the side wall of the outer screen is attached to the side wall of the inner screen, and the outer screen can be rotatably arranged on the inner screen; the side wall of the outer screen is provided with the screen holes which are in one-to-one correspondence with the inner screen;

at least a part of the sieve pores of the inner sieve mesh and the sieve pores of the outer sieve mesh are overlapped to form a discharge hole; the screen openings have at least one conical tip, and when the outer screen rotates relative to the inner screen, the tips of the screen openings of the outer screen overlap the tips of the screen openings of the inner screen.

Preferably, the geometric figure corresponding to the sieve pore is formed by enclosing a conical curve and a straight line, or the corresponding geometric figure is a rhombus, or the corresponding geometric figure is an equilateral triangle.

Preferably, the inner screen mesh is provided with a rotating shaft coaxial with the inner screen mesh, and the rotating shaft penetrates through the closed end of the inner screen mesh and is fixed with the closed end of the inner screen mesh.

Preferably, a flange is fixed on the peripheral wall of one end of the inner screen, the outer screen is tightly abutted to the flange, a plurality of threaded holes are respectively formed in the peripheral walls of the two ends of the outer screen, the outer screen is fixed to the inner screen through locking bolts in the threaded holes, and the locking bolts are tightly abutted to the inner screen.

Preferably, the inner screen is provided with a positioning hole for the locking bolt to abut against.

Preferably, a positioning ring groove for the locking bolt to tightly abut against is formed in the inner screen.

The beneficial effects of the utility model reside in that:

the utility model utilizes the nesting of the inner and outer screen meshes to lead the screen meshes on the two screen meshes to be overlapped, thereby obtaining the overlapping areas with different sizes according to the adjustment of the inner and outer screen meshes, further obtaining the discharge holes with different sizes, and finally obtaining different particles without changing the screen meshes;

by using the conical tips of the sieve pores, when the sieve pores of the inner and outer sieves are overlapped, the size of the overlapped area (namely, the discharge hole) can be changed in two directions, namely, the size can be changed in the x and y directions shown in fig. 2, so that the size change of the discharge hole is really realized, and if the size of the discharge hole is changed in only one direction and the size in the other direction is not changed, the particles with the three-dimensional structure cannot be discharged.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural view of a screen for screening hollow brick powder provided by an embodiment of the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is a schematic view of a sieve in hyperbolic curve;

FIG. 4 is a schematic view of a diamond-shaped mesh;

FIG. 5 is a schematic view of a mesh in an equilateral triangle;

FIG. 6 is an exploded view of the inner and outer screens;

FIG. 7 is a schematic view of an inner screen employing locating holes;

FIG. 8 is a schematic representation of an inner screen employing retaining ring grooves.

Description of reference numerals:

1-inner screen mesh, 11-material port, 12-flange, 13-positioning hole, 14-positioning ring groove, 2-outer screen mesh, 3-rotating shaft, 5-locking bolt and 6-screen hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example (b):

as shown in figure 1, the utility model provides a screen cloth for screening hollow brick powder, include:

an inner screen mesh 1, wherein the inner screen mesh 1 is a hollow cylinder with two closed ends, as shown in fig. 6, a material port 11 is arranged on each of the two closed ends, and a plurality of uniformly distributed screen meshes 6 are arranged on the side wall of the inner screen mesh 1; in the actual use process, the material opening 6 needs to be blocked, namely the material opening 6 needs to be blocked after the materials are put into the material opening so as to prevent the materials from scattering during screening, and a cover plate can be fixed at the material opening 6 through bolts in the blocking mode;

the outer screen 2 is a hollow cylinder with openings at two ends, the outer screen 2 is nested on the inner screen 1, the side wall of the outer screen 2 is attached to the side wall of the inner screen 1, and the outer screen 2 can be rotatably arranged on the inner screen 1; the side wall of the outer screen 2 is provided with screen holes 6 which are in one-to-one correspondence with the inner screen 1, namely the screen holes 6 of the inner screen and the outer screen are the same;

the screen holes 6 of the inner screen 1 and the screen holes 6 of the outer screen 2 are at least partially overlapped to form discharge holes (shown by hatching in figures 2-5), and granules are discharged through the discharge holes during screening, so that the required powder is obtained; the screen openings 6 have at least one conical tip, the tip of the screen opening 6 of the outer screen 2 overlapping the tip of the screen opening 6 of the inner screen 1 when the outer screen 2 is rotated relative to the inner screen 1; in addition, in order to prevent one of the holes 6 of the inner screen 1 from overlapping with two holes 6 of the outer screen 2, the corresponding arc length (i.e., j in fig. 1) between two adjacent holes 6 is larger than the length of the hole 6 in the circumferential direction;

specifically, as shown in fig. 2, 3, 4, and 5, the geometric figure corresponding to the sieve aperture 6 is formed by enclosing a conic curve and a straight line, or the corresponding geometric figure is a rhombus, or the corresponding geometric figure is an equilateral triangle, wherein the size change of the rhombus and the equilateral triangle in the x and y directions can enable the overlapped area to form a rhombus, that is, the length and the width of the overlapped area change in the same amount in the changing process, so that the sieve aperture 6 has a more preferable structure of rhombus and equilateral triangle in the actual use process; wherein the conic section comprises: ellipse (a special case of ellipse), hyperbola and parabola, because of the particularity of ellipse, when the sieve holes 6 are ellipse, a straight line is not needed to be used for enclosing, and the sieve holes can be directly set into a complete ellipse (namely shown in figure 2); that is, the geometrical shape has a tapered tip, and when the tapered tip is overlapped, the size of the tapered tip can be changed in both directions, that is, the size of the x and y directions in the figure can be changed, and further the size of the overlapped region (shown by hatching in the figure) can be really changed, the particle has a three-dimensional structure, and if the size of only one direction is changed, the particle cannot be sieved, for example, if one particle is a ball with an outer diameter of 1cm, and if the length of the discharge hole is 1cm and the width of the discharge hole is 1cm, the particle can be discharged, if the length of the discharge hole is 1cm and the width of the discharge hole is 0.5cm, the particle cannot be discharged, and if the length of the discharge hole is 10cm and the width of the discharge hole is 1cm, the particle cannot be discharged, so that the size change of the discharge hole can be really realized by the size change of the discharge hole in both directions, thereby enabling different particles to be obtained.

Further, to the rotation of interior screen cloth 1, be provided with the pivot 3 rather than the coaxial line on the interior screen cloth 1, pivot 3 passes the closed end of interior screen cloth 1 and rather than fixed, can utilize the rotation of pivot 3 to realize the rotation of interior screen cloth 1, and the rotation of pivot 3 then accessible motor drives, can arrange pivot 3 in on a support, set up two partial formula bearing frames on the support, arrange pivot 3 in partial formula bearing frame, can rotate through motor drive pivot 3, and outer screen cloth 2 is fixed on interior screen cloth 1, and then the rotation of the outer screen cloth of final realization produces the screening.

Further, the connection mode of inside and outside screen cloth is realized through locking bolt 5, promptly:

a flange 12 is fixed on the peripheral wall of one end of the inner screen 1, the outer screen 2 is tightly propped against the flange 12, a plurality of threaded holes are respectively formed in the peripheral walls of two ends of the outer screen 2, the outer screen 2 is fixed on the inner screen 1 through locking bolts 5 in the threaded holes, and the locking bolts 5 are tightly propped against the inner screen 1;

as shown in fig. 7, the inner screen 1 is provided with positioning holes 13 for the locking bolts 5 to abut against, that is, the inner screen 1 is provided with a plurality of positioning holes 13, and the locking bolts 5 abut against the positioning holes 13 to fix the inner screen, which can achieve fixing, but has a certain limiting effect on the adjustment of the size of the discharge hole, that is, the adjustment of the size of the discharge hole is limited, and continuous adjustment cannot be achieved;

as shown in fig. 8, the inner screen mesh 1 is provided with a positioning ring groove 14 for the locking bolt 5 to abut against, that is, the inner screen mesh 1 is provided with a circle of positioning ring groove 14, and the locking bolt 5 abuts against the positioning ring groove 14 to be fixed, which is superior to the structure shown in fig. 7 and can realize continuous adjustment of the size of the discharge hole.

When the adjustable screen cloth is used, the outer screen cloth 2 is nested on the inner screen cloth 1, the outer screen cloth 2 can be fixed by the locking bolts 5, and when the size of a discharge hole needs to be adjusted, the locking bolts 5 can be loosened, so that the outer screen cloth 2 rotates on the inner screen cloth 1, the overlapping area is changed, and adjustment is realized; a rotating shaft 3 can be fixed at the axis of the inner screen mesh 1, so that the rotation of the inner screen mesh and the outer screen mesh is realized; in order to facilitate the addition of materials, a plurality of material ports 11 can be formed in both closed ends of the inner screen mesh 1, but it is noted that the material ports 11 need to be blocked during screening so as to avoid bulk materials; in addition, in the practical use process, a part of particles are clamped on the discharge hole, and the size of the discharge hole can be increased to discharge the clamped particles, so that the screen is convenient to clean.

It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. The utility model provides a screen cloth for screening hollow brick powder which characterized in that includes:

2. The screen of claim 1, wherein the screen openings are formed by a conic section and a straight line, or are rhombohedral, or are equilateral triangles.

3. The screen of claim 1, wherein the inner screen has a shaft coaxial therewith, the shaft passing through and being fixed to the closed end of the inner screen.

4. The screen cloth of claim 1, wherein a flange is fixed on the outer peripheral wall of one end of the inner screen cloth, the outer screen cloth is tightly pressed on the flange, a plurality of threaded holes are respectively arranged on the outer peripheral walls of two ends of the outer screen cloth, the outer screen cloth is fixed on the inner screen cloth through locking bolts in the threaded holes, and the locking bolts are tightly pressed on the inner screen cloth.

5. The screen cloth of claim 4, wherein the inner screen cloth is provided with positioning holes for the locking bolts to tightly abut against.

6. The screen cloth of claim 4, wherein the inner screen cloth is provided with a positioning ring groove for the locking bolt to tightly abut against.