CN215313834U

CN215313834U - Grit sieving mechanism

Info

Publication number: CN215313834U
Application number: CN202121448848.2U
Authority: CN
Inventors: 洪传义
Original assignee: Yichang Decoration Group Co ltd
Current assignee: Yichang Decoration Group Co ltd
Priority date: 2021-06-29
Filing date: 2021-06-29
Publication date: 2021-12-28
Anticipated expiration: 2031-06-29

Abstract

The utility model discloses a sand and stone screening device which comprises a screening box and a feeding hopper, wherein the feeding hopper is fixedly connected to the upper surface of the screening box, a first screening net is fixedly connected to the inner wall of the screening box, a crushing device is arranged above the first screening net, a second screening net is arranged below the first screening net, one side of the second screening net is positioned on the side wall of the screening box and provided with a first discharge hole, and the other side of the second screening net is positioned on the side wall of the screening box and fixedly connected with a first vibrating motor; through first screening net, the second screening net, the third screening net, first vibrating motor and second vibrating motor's setting, can the layering screening grit, select the grit of different particle diameters, need not artifical screening, improve the screening efficiency, it is labour saving and time saving, the screening effect is better, through reducing mechanism and the cooperation setting of breaing up the device, can tentatively stir the grit and break up, avoid the grit to tie a knot, smash the stirring to the grit again, avoid the grit of great granule to block up first screening net.

Description

Grit sieving mechanism

Technical Field

The utility model relates to the field of sand treatment, in particular to a sand screening device.

Background

The sandstone refers to a loose mixture of sand grains and crushed stones, and geologically refers to mineral or rock particles with the particle size of 0.074-2mm as sand, and minerals or rock particles with the particle size of more than 2mm as gravel or cobble (the difference is that the crushed stones are different in degree of rounding, the terms gravel and sandstone can be seen in detail), if the crushed stones in the sandstone are mostly gravel, the sandstone is called gravel, and in daily life, the sandstone is also called sandstone. Need filter the grit when the grit uses, and current grit screening relies on artifical screening mostly, and the screening efficiency is lower, wastes time and energy, and the screening effect is relatively poor, and the screening is thorough inadequately, and the grit is agglomerated easily moreover, can not in time separate and break up.

SUMMERY OF THE UTILITY MODEL

In view of the problems in the prior art, the utility model discloses a sand and stone screening device which adopts the technical scheme that the sand and stone screening device comprises a screening box and a feeding funnel, wherein the feeding funnel is fixedly connected to the upper surface of the screening box, sand and stone can smoothly enter the screening box through the arrangement of the feeding funnel, a first screening net is fixedly connected to the inner wall of the screening box, the sand and stone can be preliminarily screened through the arrangement of the first screening net to leave large-particle sand and stone, a crushing device is arranged above the first screening net, a second screening net is arranged below the first screening net, the sand and stone after preliminary screening can be screened again through the arrangement of the second screening net to leave medium-particle sand and stone, a first discharge hole is formed in the side wall of the screening box on one side of the second screening net, and a first vibrating motor is fixedly connected to the side wall of the screening box on the other side of the second screening net, the below of second screening net is provided with the third screening net, through the setting of third screening net, can sieve the grit completely, leaves the grit of tiny granule to make the grit of superfine granule fall into screening bottom of the case portion, one side of third screening net is located the lateral wall fixedly connected with second vibrating motor of screening case, the opposite side of third screening net is located the lateral wall of screening case and has seted up the second discharge gate, feed hopper's inside is provided with the scattering device, the lower fixed surface of screening case is connected with the third discharge gate.

As a preferred technical scheme of the utility model, the crushing device comprises a first driving motor, a rotating rod and crushing sheets, the lower surface of the first screening net is fixedly connected with the first driving motor, an output shaft of the first driving motor is fixedly connected with the rotating rod, the outer surface of the rotating rod is fixedly connected with a plurality of crushing sheets, and the rotating rod can be driven to rotate by the first driving motor through the arrangement of the first driving motor, the rotating rod and the crushing sheets, so that the crushing sheets crush and stir the large-particle sandstone.

As a preferred technical scheme of the utility model, the front surface of the screening box is provided with the observation window, the lower surface of the screening box is fixedly connected with the supporting legs, the observation window is convenient for observing the screening condition in the screening box from the outside through the arrangement of the observation window and the supporting legs, and meanwhile, the supporting legs can support the whole screening box, thereby improving the stability of the screening box during working.

As a preferable technical scheme of the present invention, a valve is disposed inside the third discharge port, and the ultrafine sand particles can smoothly flow out through the third discharge port and the valve, and the outflow speed of the ultrafine sand particles can be controlled.

As a preferable technical scheme, the scattering device comprises a second driving motor and a rotating plate, the second driving motor is arranged on the front face of the feeding funnel, the rotating plate is fixedly connected to the output end of the second driving motor, and the rotating plate can be driven to rotate by the rotation of the second driving motor through the arrangement of the second driving motor and the rotating plate, so that the sand and stone in the feeding funnel can be separated and scattered, and the knotting situation is avoided.

As a preferred technical scheme of the utility model, the second screening net and the third screening net have certain inclination angles, the mesh densities of the first screening net, the second screening net and the third screening net are sequentially increased, the bottom of the screening box adopts an elliptical head, and sand and stones can be sequentially screened through the matching arrangement of the first screening net, the second screening net and the third screening net, so that sand and stones with different particle sizes can be screened.

The utility model has the beneficial effects that: according to the utility model, through the matched arrangement of the first screening net, the second screening net, the third screening net, the first vibrating motor and the second vibrating motor, the gravels added into the screening box can be screened in a layered manner, so that the gravels with different particle sizes are screened, a certain vibrating force is provided at the same time, manual screening is not needed, the screening efficiency of the gravels is greatly improved, time and labor are saved, the screening effect is better, the screening is more thorough, through the matched arrangement of the crushing device and the scattering device, the scattering device can preliminarily stir and scatter the added gravels, the knotted gravels are prevented from entering the screening box, the crushing device can crush and stir the gravels, the gravel is conveniently screened, and the situation that the first screening net is blocked by the large-particle gravels is avoided.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic front view of the present invention;

FIG. 3 is a schematic cross-sectional front view of the present invention.

In the figure: 1-screening box, 2-feeding funnel, 3-first screening net, 4-crushing device, 401-first driving motor, 402-rotating rod, 403-crushing piece, 5-second screening net, 6-first discharging port, 7-first vibrating motor, 8-third screening net, 9-second vibrating motor, 10-second discharging port, 11-scattering device, 1101-second driving motor, 1102-rotating plate, 12-observation window, 13-supporting leg, 14-third discharging port and 15-valve.

Detailed Description

Example 1

As shown in fig. 1 to 3, the utility model discloses a sand screening device, which adopts the technical scheme that the sand screening device comprises a screening box 1 and a feeding funnel 2, the feeding funnel 2 is fixedly connected to the upper surface of the screening box 1, a first screening net 3 is fixedly connected to the inner wall of the screening box 1, a crushing device 4 is arranged above the first screening net 3, sand is primarily screened by the first screening net 3 after entering the screening box 1 through the feeding funnel 2, then the larger-particle sand is crushed by the crushing device 4, the sand is prevented from blocking the first screening net 3, a second screening net 5 is arranged below the first screening net 3, one side of the second screening net 5 is positioned on the side wall of the screening box 1 and is provided with a first discharge hole 6, the other side of the second screening net 5 is positioned on the side wall of the screening box 1 and is fixedly connected with a first vibrating motor 7, the gravels fall into the second screening net 5 after primary screening, then the first vibrating motor 7 provides vibrating force, meanwhile, the gravels slide down from the upper surface of the second screening net 5 to realize secondary screening, the large-granule gravels flow out from the first discharge port 6, a third screening net 8 is arranged below the second screening net 5, one side of the third screening net 8 is fixedly connected with a second vibrating motor 9 on the side wall of the screening box 1, a second discharge hole 10 is formed in the other side of the third screening net 8, which is positioned on the side wall of the screening box 1, the sand and stone after secondary screening falls onto the third screening net 8, the second vibration motor 9 provides vibration force, the sand and stone slides from the upper surface of the third screening net 8, tertiary screening of the sand and stone is realized, small-particle sand and stone flow out from the second discharge hole 10, the inside of feed hopper 2 is provided with breaks up device 11, the lower fixed surface of screening case 1 is connected with third discharge gate 14.

As a preferred technical solution of the present invention, the crushing device 4 includes a first driving motor 401, a rotating rod 402 and crushing pieces 403, the first driving motor 401 is fixedly connected to the lower surface of the first sieving net 3, the rotating rod 402 is fixedly connected to an output shaft of the first driving motor 401, the plurality of crushing pieces 403 are fixedly connected to the outer surface of the rotating rod 402, and when sand flows into the sieving box 1 from the feeding hopper 2, the rotating rod 402 and the crushing pieces 403 are driven by the first driving motor 401 to rotate, so as to stir and crush the larger sand, thereby preventing the sand from blocking the first sieving net 3.

As a preferred technical scheme of the utility model, the front surface of the screening box 1 is provided with an observation window 12, the lower surface of the screening box 1 is fixedly connected with a supporting leg 13, the screening process of the gravel can be observed from the outside of the screening box 1 through the observation window 12 in the process of screening the gravel, and meanwhile, the supporting leg 13 supports the whole screening box 1, so that the stability of the screening box is improved.

As a preferred technical scheme of the utility model, a valve 15 is arranged in the third discharge hole 14, the sand after being completely screened has ultrafine sand, the third discharge hole 14 can conveniently discharge the ultrafine sand, and the valve 15 can control the outflow speed of the ultrafine sand.

As a preferred technical solution of the present invention, the scattering device 11 includes a second driving motor 1101 and a rotating plate 1102, the second driving motor 1101 is disposed on the front surface of the feed hopper 2, an output end of the second driving motor 1101 is fixedly connected to the rotating plate 1102, when sand flows into the feed hopper 2, the second driving motor 1101 drives the rotating plate 1102 to rotate, so as to primarily stir the sand, prevent the sand from being blocked, and separate and scatter the knotted sand.

As a preferred technical scheme of the utility model, the second screening net 5 and the third screening net 8 have certain inclination angles, the mesh densities of the first screening net 3, the second screening net 5 and the third screening net 8 are sequentially increased, the bottom of the screening box 1 adopts an elliptical seal head, and the second screening net 5 and the third screening net 8 are obliquely arranged, so that sand and stone can slide down more conveniently, and the screening efficiency is improved.

The working principle of the utility model is as follows: first driving motor 401 is started at first, second driving motor 1101, first vibrating motor 7 and second vibrating motor 9, then the grit that needs to be screened is added from feed hopper 2, break up device 11 and carry out preliminary mixing to the grit that adds, realize breaking up the separation of grit, after the grit gets into screening case 1 inside through feed hopper 2, first screening net 3 carries out preliminary screening to the grit, then reducing mechanism 4 again smashes bigger granule grit, avoid the grit to block first screening net 3, the grit falls into second screening net 5 after preliminary screening, then first vibrating motor 7 provides the vibrational force, the grit slides down from second screening net 5 upper surface simultaneously, realize secondary screening, big granule grit flows from first discharge gate 6, the grit after secondary screening falls into third screening net 8, second vibrating motor 9 provides the vibrational force, the grit slides from third screening net 8 upper surface, realizes the cubic screening to the grit, and the granule grit flows out from second discharge gate 10.

The circuit connections according to the utility model are conventional means used by the person skilled in the art and can be suggested by a limited number of tests, which are common knowledge.

Components not described in detail herein are prior art.

Although the present invention has been described in detail with reference to the specific embodiments, the present invention is not limited to the above embodiments, and various changes and modifications without inventive changes may be made within the knowledge of those skilled in the art without departing from the spirit of the present invention.

Claims

1. The utility model provides a grit sieving mechanism, includes screening case (1) and feed hopper (2), the last fixed surface of screening case (1) is connected with feed hopper (2), its characterized in that: the inner wall of the screening box (1) is fixedly connected with a first screening net (3), a crushing device (4) is arranged above the first screening net (3), a second screening net (5) is arranged below the first screening net (3), one side of the second screening net (5) is positioned on the side wall of the screening box (1) and provided with a first discharge port (6), the other side of the second screening net (5) is positioned on the side wall of the screening box (1) and fixedly connected with a first vibrating motor (7), a third screening net (8) is arranged below the second screening net (5), one side of the third screening net (8) is positioned on the side wall of the screening box (1) and fixedly connected with a second vibrating motor (9), the other side of the third screening net (8) is positioned on the side wall of the screening box (1) and provided with a second discharge port (10), and a scattering device (11) is arranged inside the feeding funnel (2), the lower surface of the screening box (1) is fixedly connected with a third discharge hole (14).

2. A sand screening apparatus according to claim 1, wherein: the crushing device (4) comprises a first driving motor (401), a rotating rod (402) and crushing sheets (403), the lower surface of the first screening net (3) is fixedly connected with the first driving motor (401), an output shaft of the first driving motor (401) is fixedly connected with the rotating rod (402), and the outer surface of the rotating rod (402) is fixedly connected with the crushing sheets (403).

3. A sand screening apparatus according to claim 1, wherein: the front of screening case (1) is provided with observation window (12), the lower fixed surface of screening case (1) is connected with landing leg (13).

4. A sand screening apparatus according to claim 1, wherein: and a valve (15) is arranged in the third discharge hole (14).

5. A sand screening apparatus according to claim 1, wherein: the scattering device (11) comprises a second driving motor (1101) and a rotating plate (1102), the second driving motor (1101) is arranged on the front face of the feeding hopper (2), and the rotating plate (1102) is fixedly connected to the output end of the second driving motor (1101).

6. A sand screening apparatus according to claim 1, wherein: second screening net (5) and third screening net (8) all have certain inclination, the mesh density of first screening net (3), second screening net (5) and third screening net (8) increases in proper order, the bottom of screening case (1) adopts oval head.