CN219503210U

CN219503210U - Fly ash secondary selecting device

Info

Publication number: CN219503210U
Application number: CN202320688273.4U
Authority: CN
Inventors: 任荣杰; 张欣; 赵佳; 张寻; 常天阳; 丛梦晓; 朱彩飞
Original assignee: CECEP Engineering Technology Research Institute Co Ltd
Current assignee: CECEP Engineering Technology Research Institute Co Ltd
Priority date: 2023-03-31
Filing date: 2023-03-31
Publication date: 2023-08-11
Anticipated expiration: 2033-03-31

Abstract

The utility model relates to the technical field of solid waste recycling, in particular to a fly ash secondary separation device. Including the casing, the lower part of casing is equipped with vibrating motor, the inside of casing is equipped with inferior selection mechanism, inferior selection mechanism includes the pivot, be equipped with 3 at least groups sieve tray in the axial of pivot, 3 at least groups sieve tray's sieve mesh diameter from the top down reduces in order, the middle part of sieve tray is equipped with the mounting hole, the marginal symmetry of mounting hole is equipped with the draw-in groove, the symmetry is equipped with the bead on the lateral surface of pivot, the sieve tray cup joints in the pivot, just the bead is located in the draw-in groove, adjacent all be equipped with supporting spring between the sieve tray, supporting spring cup joints in the pivot, and both ends are in tight contact with the middle part of sieve tray respectively, be equipped with rotating electrical machines on the tip of pivot. The technical scheme is used for solving the problems that in the prior art, the screen plate is fixedly arranged, so that the vibration amplitude is small, and the vibration and overturning effects of the accumulated fly ash on the screen plate are poor.

Description

Fly ash secondary selecting device

Technical Field

The utility model relates to the technical field of solid waste recycling, in particular to a fly ash secondary separation device.

Background

Fly ash is fine ash collected from flue gas after coal combustion, and is main solid waste discharged from coal-fired power plants. Because the fly ash has certain activity, the fly ash can be directly used as a cement admixture without treatment. The fly ash can be divided into primary fly ash, secondary fly ash and tertiary fly ash according to different particle sizes, the primary fly ash can directly replace cement to produce low-grade concrete, and the secondary fly ash and the tertiary fly ash can replace part of cement to be applied to the concrete, so that the functions of gelation and micro-aggregate are achieved.

Therefore, when the fly ash is used in concrete, the fly ash needs to be screened firstly, and the prior art usually screens the fly ash in a vibrating manner through a screen plate, but the mode has the following defects in the actual use process, because the screen plate is fixedly arranged (such as being fixed on a shell and can only vibrate along with the whole body), when the vibrating motor drives the fly ash to vibrate, the vibration amplitude is smaller, the vibration and overturning effects on the fly ash piled on the fly ash are poor (insufficient vibration and scattering are carried out, and the agglomerate is discharged from the screen plate instead of passing through a screen hole), so that the problem of poor fly ash sorting effect is caused.

Disclosure of Invention

Aiming at the defects of the technology, the utility model aims to provide a fly ash secondary selecting device which is used for solving the problem that the vibration amplitude of a sieve plate is smaller in the prior art due to the fixed arrangement of the sieve plate, so that the shaking and overturning effects of the accumulated fly ash on the sieve plate are poor.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the fly ash secondary selecting device comprises a shell, the lower part of the shell is provided with a vibrating motor, the inside of the shell is provided with a secondary selecting mechanism, the secondary selecting mechanism comprises a rotating shaft, at least 3 groups of sieve trays are arranged in the axial direction of the rotating shaft, the sieve diameters of the sieve trays are sequentially reduced from top to bottom, the middle part of the sieve trays is provided with a mounting hole, the edge symmetry of the mounting hole is provided with a clamping groove, the outer side surface of the rotating shaft is symmetrically provided with a convex edge, the sieve trays are sleeved on the rotating shaft, the convex edge is positioned in the clamping groove, supporting springs are arranged between every two adjacent sieve trays, the supporting springs are sleeved on the rotating shaft, the two ends of each supporting spring are respectively in tight contact with the middle part of the sieve tray, a rotating motor is arranged on one end of the rotating shaft, and the rotating motor is fixed on the shell and the output end of each rotating shaft is fixed on one end of the rotating shaft.

Further limited, the shell is provided with discharge holes corresponding to the number and the positions of the screen discs, which is beneficial in that the discharge of residual fly ash on the screen discs is facilitated.

Further limiting, the outside of vibration motor is equipped with fixed spring, and the thresh-and-search fox fixed spring circumference all lays on the bottom surface of casing, and its beneficial lies in, fixed spring can strengthen the fixed stability of casing between ground, and the spring can deform adaptation vibration motor's shake simultaneously, promotes the vibration effect of this device.

Further limited, set up in the lower part the sieve tray below is equipped with the collection bag, the one section of collection bag is fixed in on the inner wall of casing, be equipped with the passage on the other end of collection bag, the outside that the one end of passage extends to the casing, its beneficial lies in that, the fine fly ash of collection bag and passage's setting be convenient for to sieve in the lower part sieve tray is sieved is collected.

Further defined, the collection bag is tapered, which is beneficial in that the tapered arrangement promotes collection of fly ash.

Further limited, be equipped with the brush on the lower surface of sieve tray, the brush hair of brush and sieve tray in close contact, just the brush is fixed in on the medial surface of casing, and its beneficial lies in, when the sieve tray shake from top to bottom under vibrating motor's effect, the brush hair can get into inside the sieve mesh, with the inside fly ash ejection of sieve mesh, plays the effect of clear hole.

Further, the discharge hole is arranged obliquely downwards, which is beneficial in that the discharge hole can be conveniently discharged in a shaking way under the self-gravity.

Further limited, be equipped with the arc striker plate on the one end of discharge gate orientation screen tray, the one end of arc striker plate is fixed in on the medial surface of casing, the other end and the marginal in close contact of screen tray of arc striker plate, its advantage lies in, is convenient for to the fly ash direction of motion to the edge, makes it discharge through the discharge gate.

Further limited, the end of the material guiding pipe, which is positioned outside the shell, is arranged obliquely downwards, which is beneficial in that the material guiding pipe is convenient to shake and discharge under the self-gravity.

Further limited, all be equipped with supporting spring on the both ends of pivot, supporting spring's one end is fixed in the pivot, and the other end is in sieve tray close contact, and its beneficial lies in, further promotes the upper and lower vibrations effect of sieve tray in pivot both ends department.

The working principle of the technical scheme is as follows:

the vibrating motor drives the rotating shaft to vibrate through driving the shell to vibrate, the shell drives the screen disc to vibrate so as to realize classified screening of the fly ash, and the rotating motor drives the screen disc to rotate during vibration screening, so that larger fly ash particles which cannot permeate through the screen holes on the screen disc are thrown to the edge of the screen disc to be discharged from the discharge port, and the screen disc can jump up and down when the support spring is in shaking deformation due to the abutting of the support springs between the adjacent screen discs, so that the shaking amplitude of the screen disc is increased, and the stirring effect of the fly ash on the screen disc is improved.

The technical effects obtained by the technical scheme are as follows:

(1) In the technical scheme, the screen disc is limited and abutted to the rotating shaft through the supporting spring, the supporting spring deforms under the action of the vibrating motor, namely, the screen disc can shake up and down on the rotating shaft, namely, the shaking amplitude of the screen disc is increased in a connecting mode, namely, the turning effect of stacking the fly ash on the screen disc is improved, namely, the screening effect of the fly ash is improved; (2) The shaking amplitude of the screen disc is large, so that the fly ash blocked in the screen holes can be vibrated out, and the screen holes of the screen disc are prevented from being blocked by the fly ash.

Drawings

FIG. 1 is a schematic perspective view of a fly ash secondary separation device;

FIG. 2 is a schematic elevation cross-sectional view of a fly ash secondary separation device;

fig. 3 is a schematic perspective view of the interior of the fly ash secondary separation device.

Reference numerals of the drawings

The device comprises a shell 1, a discharge hole 2, a vibrating motor 3, a fixed spring 4, a material guiding pipe 5, a collecting bag 6, a screen disc 7, a supporting spring 8, a convex rib 9, a rotating shaft 10 and a rotating motor 11.

Detailed Description

The following is a further detailed description of the embodiments:

as shown in fig. 1 and 3, the fly ash secondary selecting device comprises a housing 1, a vibrating motor 3 is arranged at the lower part of the housing 1, secondary selecting mechanisms are arranged in the housing 1, each secondary selecting mechanism comprises a rotating shaft 10, at least 3 groups of screen discs 7 are arranged in the axial direction of the rotating shaft 10, the diameters of the screen holes of at least 3 groups of screen discs 7 are sequentially reduced from top to bottom, in this specific embodiment, the number of the screen discs 7 is 3, the specific number is determined according to actual use requirements, a mounting hole is arranged in the middle of the screen disc 7, clamping grooves are symmetrically arranged at the edges of the mounting hole, protruding edges 9 are symmetrically arranged on the outer side surface of the rotating shaft 10, the screen discs 7 are sleeved on the rotating shaft 10, the protruding edges 9 are located in the clamping grooves, supporting springs 8 are arranged between every two adjacent screen discs 7, each supporting spring 8 is sleeved on the rotating shaft 10, two ends of each supporting and in tight contact with the middle of the screen disc 7, a rotating motor 11 is arranged on one end of the rotating shaft 10, the rotating motor 11 is fixed on the housing 1, and the output end of each rotating shaft is fixed on one end of the rotating shaft 10, and it is easy to understand that the inner side surface of the housing 1 is in sliding contact with the edges of the screen discs 7.

The collecting bag 6 is arranged below the screen disc 7 at the lowest part, one section of the collecting bag 6 is fixed on the inner wall of the shell 1, the other end of the collecting bag 6 is provided with the material guiding pipe 5, one end of the material guiding pipe 5 extends to the outside of the shell 1, and the collecting bag 6 and the material guiding pipe 5 are convenient for collecting fine fly ash screened by the screen disc 7 at the lowest part. Preferably, the collecting bag 6 is provided in a conical shape, and the conical shape improves the collecting effect of the fly ash. One end of the material guiding pipe 5, which is positioned outside the shell 1, is arranged obliquely downwards, so that the material guiding pipe can be conveniently discharged in a shaking way under the self gravity.

The supporting springs 8 are arranged at the two ends of the rotating shaft 10, one ends of the supporting springs 8 are fixed on the rotating shaft 10, the other ends of the supporting springs are in close contact with the screen disc 7, and the up-and-down vibration effect of the screen disc 7 at the two ends of the rotating shaft 10 is further improved.

It will be understood that the shell 1 is provided with the discharge ports 2 corresponding to the number and positions of the sieve trays 7, so that the residual fly ash on the sieve trays 7 can be conveniently discharged, and most of the discharge ports 2 are positioned above the sieve trays 7 in a normal state (because the sieve trays 7 shake up and down), and each sieve tray 7 corresponds to one discharge port 2. The discharge hole 2 is arranged obliquely downwards, so that the material can be conveniently discharged in a shaking way under the self gravity. An arc-shaped baffle plate is arranged at one end of the discharge hole 2, facing the screen disc 7, one end of the arc-shaped baffle plate is fixed on the inner side surface of the shell 1, and the other end of the arc-shaped baffle plate is in close contact with the edge of the screen disc 7, so that fly ash moving to the edge is conveniently guided, and the fly ash is discharged through the discharge hole 2.

The outside of vibrations motor is equipped with fixed spring 4, and the fixed spring 4 circumference of thresh search fox all lays on the bottom surface of casing 1, and fixed spring 4 can strengthen the fixed stability of casing between ground, and the vibration effect of this device is promoted in the shake that the adaptation vibrations motor can be deformed to the spring simultaneously.

The brush is arranged on the lower surface of the screen disc 7, the brush hair of the brush is in close contact with the screen disc 7, and the brush is fixed on the inner side surface of the shell 1, when the screen disc 7 shakes up and down under the action of the vibration motor, the brush hair can enter the inside of the screen holes, and the fly ash in the inside of the screen holes is ejected out to play a role of cleaning holes.

It should be noted in advance that, in the present utility model, unless explicitly specified and limited otherwise, terms such as "mounted," "connected," "fixed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

The foregoing is merely exemplary of the present utility model, and specific structures and features that are well known in the art are not described in detail herein. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present utility model, and these should also be considered as the scope of the present utility model, which does not affect the effect of the implementation of the present utility model and the utility of the patent. The protection scope of the present utility model is subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.

Claims

1. The fly ash secondary selecting device comprises a shell, wherein the lower part of the shell is provided with a vibrating motor, and the fly ash secondary selecting device is characterized in that: the inside of casing is equipped with inferior selection mechanism, inferior selection mechanism includes the pivot, be equipped with 3 at least groups sieve tray in the axial of pivot, 3 at least groups sieve tray's sieve mesh diameter from the top down reduces in order, the middle part of sieve tray is equipped with the mounting hole, the edge symmetry of mounting hole is equipped with the draw-in groove, the symmetry is equipped with the bead on the lateral surface of pivot, the sieve tray cup joints in the pivot, just the bead is located in the draw-in groove, adjacent all be equipped with supporting spring between the sieve tray, supporting spring cup joints in the pivot, and both ends respectively with the middle part butt contact of sieve tray, be equipped with rotating electrical machines on one end of pivot, rotating electrical machines is fixed in on the casing, and its output is fixed in on the one end of pivot.

2. The fly ash secondary separation device according to claim 1, wherein: the shell is provided with discharge holes corresponding to the number and the positions of the sieve trays.

3. The fly ash secondary separation device according to claim 1, wherein: the outside of vibrating motor is equipped with fixed spring, fixed spring circumference equipartition sets up on the bottom surface of casing.

4. A fly ash secondary separation device according to claim 3, wherein: the utility model discloses a sieve tray, including the sieve tray, the collection bag is equipped with in the lower part below the sieve tray, one section of collection bag is fixed in on the inner wall of casing, be equipped with the passage on the other end of collection bag, the one end of passage extends to the outside of casing.

5. The fly ash secondary separation device according to claim 4, wherein: the collecting bag is arranged in a conical shape.

6. The fly ash secondary separation device according to claim 1, wherein: the lower surface of the screen disc is provided with a brush, bristles of the brush are in close contact with the screen disc, and the brush is fixed on the inner side surface of the shell.

7. The fly ash secondary separation device according to claim 2, wherein: the discharge hole is arranged obliquely downwards.

8. The fly ash secondary separation device of claim 7, wherein: the discharge gate is equipped with the arc striker plate towards on the one end of screen tray, the one end of arc striker plate is fixed in on the medial surface of casing, the other end of arc striker plate and the marginal in close contact of screen tray.

9. The fly ash secondary separation device according to claim 4, wherein: one end of the material guiding pipe, which is positioned outside the shell, is obliquely downwards arranged.

10. The fly ash secondary separation device according to claim 1, wherein: the two ends of the rotating shaft are respectively provided with a supporting spring, one end of each supporting spring is fixed on the rotating shaft, and the other end of each supporting spring is in close contact with the screen disc.