CN111167718A

CN111167718A - Grain sieving mechanism of stone grain is sieved in selection by winnowing

Info

Publication number: CN111167718A
Application number: CN201911409472.1A
Authority: CN
Inventors: 卜露露
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-05-19

Abstract

The invention provides a grain screening device for winnowing and screening stone grains, which comprises a screening tank, wherein a supporting plate is installed at the bottom of the screening tank, a first air blower is fixedly installed at the edge of the top of the supporting plate, an air outlet pipeline is installed at an air outlet of the first air blower, a plurality of spiral flow deflectors are fixedly welded on the inner wall of the air outlet pipeline in a staggered mode, second air blowers are symmetrically installed on the inner wall of the screening tank, a vibrating screen plate is arranged right below the two second air blowers, and a first vibrator is installed at the center of the bottom of the vibrating screen plate. According to the invention, shriveled grains and light impurities are screened out by the first air blower, the grain staying time in the air is prolonged by the second air blower, the screening effect is improved, the screening of the impurities such as heavy stone particles is realized by the vibrating screen plate, and the screening effect of the impurities such as heavy stone particles is improved.

Description

Grain sieving mechanism of stone grain is sieved in selection by winnowing

Technical Field

The invention mainly relates to the technical field of grain screening, in particular to a grain screening device capable of winnowing and screening stone grains.

Background

Present grain needs the sieving mechanism to filter grain before airing the bagging-off, screens out impurity such as garrulous straw, blade, soil grain and stone grain in the grain, improves the quality of grain, generally adopts the air separator to filter grain, and the air separator generally can only screen out impurity that the quality is lighter or shrivelled grain in the screening process, and is not good to the screening effect of impurity such as the stone grain that the quality is heavier. Therefore, there is a need to develop a grain screening device for winnowing and screening stone particles, which can improve the screening effect on impurities such as heavy stone particles and the like and improve the quality of grains.

Disclosure of Invention

The invention mainly provides a grain screening device for winnowing and screening stone grains, which is used for solving the technical problems in the background technology.

The technical scheme adopted by the invention for solving the technical problems is as follows:

a grain screening device for removing stone grains through winnowing screening comprises a screening tank, wherein a supporting plate is installed at the bottom of the screening tank through bolts, a first air blower is installed at the edge of the top of the supporting plate through bolt fixing, an air outlet pipeline is installed at the air outlet of the first air blower through bolts, one end, far away from the first air blower, of the air outlet pipeline penetrates through a shell of the screening tank and extends into the shell, a plurality of spiral flow deflectors are welded and fixed on the inner wall of the air outlet pipeline in a staggered mode, second air blowers are symmetrically installed on the inner wall of the screening tank through bolts, the two second air blowers are located below the air outlet pipeline, a vibrating screen plate is arranged under the two second air blowers, a plurality of elastic connecting pieces are installed on the two sides of the vibrating screen plate in a staggered mode through bolts, and one ends, far away from the vibrating screen plate, of the elastic connecting pieces are fixedly connected with the inner wall of the, and a first vibrator is arranged at the center of the bottom of the vibrating screen plate through a bolt.

Further, two all be equipped with vibration baffle directly over the second air-blower, two vibration baffle's one end all through the spherical pair with the inner wall fixed connection of screening jar, two the second vibrator is all installed through the bolt to vibration baffle's bottom, and two vibration baffle's top is all crisscross to be run through perpendicularly and is equipped with a plurality of ventilation holes.

Further, the both sides of vibration sieve bottom are passed through the crisscross fixed mounting of bolt symmetry and are had a plurality of elasticity boxes, and are a plurality of all be equipped with the elasticity ball in the cavity of elasticity box, it is a plurality of the outer wall of elasticity ball all with a plurality of the inner wall of elasticity box contacts but not fixed.

Furthermore, the top center department of screening jar is fixed with into the hopper through the bolt, the bottom center department of going into the hopper runs through the bolt and is equipped with spiral pan feeding pipe, spiral pan feeding pipe is kept away from the one end of going into the hopper runs through perpendicularly the casing of screening jar extends to its inside, the bottom of spiral pan feeding pipe is equipped with a plurality of branch material pipes through crisscross perpendicular running through of bolt.

Furthermore, one side of the screening tank opposite to the air outlet pipeline horizontally penetrates through a first sundry outlet, a sundry collecting box is mounted on the inner wall of the first sundry outlet through bolts, and a cover plate is mounted at a discharge port of the sundry collecting box through a hinge.

Furthermore, the front end of the screening tank horizontally penetrates through and is provided with a second sundry outlet, and the center of the bottom end of the screening tank vertically penetrates through and is provided with a grain outlet.

Furthermore, four apex angles of backup pad bottom install shock attenuation supporting legs subassembly one by one through the bolt.

Furthermore, the first air blower and the second air blower are provided with filter screens on the inner wall of the air inlet of the second air blower through bolts.

Compared with the prior art, the invention has the beneficial effects that:

firstly, the invention has good screening effect on impurities such as heavier stone particles and the like, in the falling process of grains, the first air blower works, the air flow generated by the first air blower forms spiral air flow through the spiral flow deflector, the grains are winnowing and screened through the spiral air flow, the second air blower works and generates air flow, the staying time of the grains in the air is prolonged, the screening effect is improved, shriveled grains and lighter impurities are screened through the first air blower, the impurities such as full grains and heavier stone particles and the like fall onto the vibrating screen plate, the vibrating screen plate works through the first vibrator, the vibrating screen plate vibrates to screen the impurities such as heavier stone particles and the like, and the screening effect on the impurities such as heavier stone particles and the like is improved;

secondly, the second vibrator works to drive the vibration baffle to vibrate, so that grains falling on the vibration baffle are scattered on the vibration sieve plate, the grains do not stay on the vibration baffle and cannot pass through the vent hole, the second air blower is protected, and the grains are prevented from falling on the second air blower;

thirdly, the grain is divided by the spiral feeding pipe and the plurality of material dividing pipes, so that the grain can fall more uniformly, and the influence on the winnowing screening effect caused by over-dense grain falling is prevented;

fourthly, the vibrating sieve plate vibrates, and the elastic balls jump under the vibration effect, so that sundries cannot remain on the vibrating sieve plate, and the sundries are prevented from blocking sieve pores of the vibrating sieve plate;

fifthly, the invention collects shrivelled grains or light impurities screened by air separation through the impurity collecting box, and can clean the collected impurities by opening the cover plate, thereby facilitating the cleaning of the impurities.

The present invention will be explained in detail below with reference to the drawings and specific embodiments.

Drawings

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

FIG. 2 is a schematic view of the internal structure of the screening tank of the present invention;

FIG. 3 is a cross-sectional view showing the internal structure of the screening can of the present invention;

FIG. 4 is a schematic view of the spiral feeding tube structure of the present invention;

FIG. 5 is a schematic view of the internal structure of the air outlet duct according to the present invention;

fig. 6 is an enlarged view of region a in fig. 2.

Reference numerals: 1. a screening tank; 11. a second sundry outlet; 12. a support plate; 13. a shock absorbing support leg assembly; 14. feeding into a hopper; 15. a spiral feeding pipe; 16. distributing pipes; 17. a first sundry outlet; 18. a grain outlet; 2. a first blower; 21. an air outlet pipeline; 211. a spiral flow deflector; 3. vibrating the sieve plate; 31. a first vibrator; 32. an elastic connecting member; 33. an elastic case; 331. an elastic ball; 4. a sundries collecting box; 41. a cover plate; 5. a second blower; 6. vibrating the baffle; 61. a second vibrator; 62. a vent hole; 7. and (4) a filter screen.

Detailed Description

In order to facilitate an understanding of the invention, the invention will now be described more fully hereinafter with reference to the accompanying drawings, in which several embodiments of the invention are shown, but which may be embodied in different forms and not limited to the embodiments described herein, but which are provided so as to provide a more thorough and complete disclosure of the invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may be present, and when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present, as the terms "vertical", "horizontal", "left", "right" and the like are used herein for descriptive purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the knowledge of the terms used herein in the specification of the present invention is for the purpose of describing particular embodiments and is not intended to limit the present invention, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Please refer to fig. 1-6, which shows that the grain screening device for winnowing and screening stone grains comprises a screening tank 1, a support plate 12 is installed at the bottom of the screening tank 1 through bolts, a first air blower 2 is fixedly installed at the top edge of the support plate 12 through bolts, an air outlet pipeline 21 is installed at the air outlet of the first air blower 2 through bolts, one end of the air outlet pipeline 21 far away from the first air blower 2 penetrates through the shell of the screening tank 1 and extends into the interior of the screening tank, a plurality of spiral guide vanes 211 are fixed on the inner wall of the air outlet pipeline 21 in a staggered welding manner, second air blowers 5 are symmetrically installed on the inner wall of the screening tank 1 through bolts, the two second air blowers 5 are positioned below the air outlet pipeline 21, a vibrating screen plate 3 is arranged under the two second air blowers 5, and a plurality of elastic connecting pieces 32 are installed on both sides of the vibrating screen plate 3 in a staggered manner through bolts, it is a plurality of elastic connecting piece 32 keeps away from the one end of vibration sieve plate 3 all through the bolt with the inner wall fixed connection of screening jar 1, just first vibrator 31 is installed through the bolt in the bottom center department of vibration sieve plate 3. In this embodiment, the vibrating screen deck 3 is arranged obliquely with a slope for transporting the impurities.

Please refer to fig. 1 again, a first sundries outlet 17 is horizontally arranged on one side of the screening tank 1 opposite to the air outlet pipeline 21 in a penetrating manner, a sundries collecting box 4 is mounted on the inner wall of the first sundries outlet 17 through bolts, a cover plate 41 is mounted at a discharge port of the sundries collecting box 4 through a hinge, a second sundries outlet 11 is horizontally arranged at the front end of the screening tank 1 in a penetrating manner, a grain outlet 18 is vertically arranged at the center of the bottom end of the screening tank 1 in a penetrating manner, and four top corners at the bottom of the support plate 12 are respectively provided with a shock absorption support leg assembly 13 through bolts. In this embodiment, collect the shriveled grain or the lighter impurity of quality that the selection by winnowing was sieved through debris collecting box 4, can clear up the impurity of collecting through opening apron 41, the clearance of the impurity of being convenient for, through the effort that shock attenuation supporting legs subassembly 13 buffer received, securing device during operation.

Please refer to fig. 1 again, the inner walls of the air inlets of the first blower 2 and the two second blowers 5 are respectively provided with a filter screen 7 by bolts. In the embodiment, the filter screen 7 prevents impurities from entering the screening tank 1 through the air inlet when the first air blower 2 and the second air blower 5 work, which results in incomplete grain screening.

Please refer to fig. 3 again, the vibration baffles 6 are disposed right above the two second air blowers 5, one ends of the two vibration baffles 6 are fixedly connected to the inner wall of the screening tank 1 through spherical pairs, the bottoms of the two vibration baffles 6 are respectively provided with a second vibrator 61 through bolts, and the top ends of the two vibration baffles 6 are respectively provided with a plurality of vent holes 62 in a staggered and perpendicular penetrating manner. In this embodiment, the second vibrator 61 works to drive the vibration baffle 6 to vibrate, so that the grains falling on the vibration baffle 6 are scattered on the vibration sieve plate 3, the grains do not stay on the vibration baffle 6, the grains cannot pass through the ventilation hole 62, the second air blower 5 is protected, the grains are prevented from falling on the second air blower 5, the air flow generated by the second air blower 5 is output through the ventilation hole 62, the stay time of the grains in the air is prolonged, and the air separation sieving effect is improved.

Please refer to fig. 3, a plurality of elastic boxes 33 are symmetrically and fixedly installed at two sides of the bottom of the vibrating screen plate 3 in a staggered manner through bolts, elastic balls 331 are respectively installed in cavities of the elastic boxes 33, and outer walls of the elastic balls 331 are respectively in contact with inner walls of the elastic boxes 33 but are not fixed. In this embodiment, the vibrating screen plate 3 vibrates, and the elastic balls 331 jump under the vibration effect, so that the vibrating screen plate 3 does not have sundries left thereon, and the sundries are prevented from blocking the screen holes of the vibrating screen plate 3.

Please refer to fig. 4 again, a feeding hopper 14 is fixed at the center of the top end of the screening tank 1 through a bolt, a spiral feeding pipe 15 is arranged at the center of the bottom of the feeding hopper 14 through a bolt, one end of the spiral feeding pipe 15 far away from the feeding hopper 14 vertically penetrates through the shell of the screening tank 1 and extends to the inside of the shell, and a plurality of distributing pipes 16 are arranged at the bottom of the spiral feeding pipe 15 through bolts in a staggered and vertical penetrating manner. In this embodiment, grain gets into through spiral pan feeding pipe 15, shunts through a plurality of branch material pipes 16, makes the comparatively even whereabouts of grain ability, prevents too intensive of grain whereabouts, influences the effect that the selection by winnowing was sieved.

The specific operation mode of the invention is as follows:

firstly, grains are poured into the vibrating screen plate from the feeding hopper 14, the grains enter through the spiral feeding pipe 15 and are divided through the plurality of material dividing pipes 16, so that the grains can fall uniformly, in the falling process of the grains, the first air blower 2 works, the air flow generated by the first air blower 2 forms spiral air flow through the spiral guide plate 211, the grains are subjected to winnowing screening through the spiral air flow, the falling time of the grains is prolonged, the screening effect is improved, at the moment, dry grains and light impurities are conveyed into the impurity collecting box 4 through the first impurity outlet 17 by the air flow, the grains are worked through the second air blower 5, the air flow generated by the second air blower 5 is output through the vent hole 62, the staying time of the grains in the air is prolonged, when the second air blower 5 works, the second vibrator 61 works, the vibrating screen plate 6 works, the grains falling on the vibrating screen plate 6 are scattered on the vibrating screen plate 3, make grain not stop on vibration damper 6, grain can't pass ventilation hole 62, second air-blower 5 has been protected, prevent that grain from dropping on second air-blower 5, impurity such as full grain and heavier stone grain falls on vibration sieve 3, through first vibrator 31 work, vibration sieve 3 vibrates and carries out the screening of impurity such as grain and heavier stone grain, grain transports from grain export 18 through the sieve mesh, impurity such as heavier stone grain transports through second debris export 11 under the effect of vibration.

The invention has been described above with reference to the accompanying drawings, it is obvious that the invention is not limited to the specific implementation in the above-described manner, and it is within the scope of the invention to adopt such insubstantial modifications of the inventive concept and solution, or to apply the inventive concept and solution directly to other applications without such modifications.

Claims

1. The utility model provides a grain sieving mechanism of stone grain is sieved in selection by winnowing, including screening jar (1), its characterized in that: the bottom of screening jar (1) is installed backup pad (12) through the bolt, there is first air-blower (2) top edge of backup pad (12) through bolt fixed mounting, air-out pipeline (21) is installed through the bolt in the air outlet department of first air-blower (2), the one end that air-out pipeline (21) kept away from first air-blower (2) runs through the casing of screening jar (1) extends to its inside, crisscross welded fastening has a plurality of spiral water conservancy diversion pieces (211) on the inner wall of air-out pipeline (21), just install second air-blower (5) through the bolt symmetry on the inner wall of screening jar (1), two second air-blower (5) are located the below of air-out pipeline (21), two be equipped with vibration sieve (3) under second air-blower (5), a plurality of elastic connection spare (32) are all installed through the bolt is crisscross to the both sides of vibration sieve (3), a plurality of elastic connecting piece (32) keep away from the one end of vibration sieve board (3) all through the bolt with the inner wall fixed connection of screening jar (1), just first vibrator (31) are installed through the bolt in the bottom center department of vibration sieve board (3).

2. The grain screening device of claim 1, wherein the grain screening device comprises: two all be equipped with vibration baffle (6), two directly over second air-blower (5) the one end of vibration baffle (6) all through spherical pair with the inner wall fixed connection of screening jar (1), two second vibrator (61), and two are all installed through the bolt in the bottom of vibration baffle (6) the top of vibration baffle (6) all crisscross perpendicular running through and are equipped with a plurality of ventilation holes (62).

3. The grain screening device of claim 1, wherein the grain screening device comprises: the both sides of vibration sieve (3) bottom have a plurality of elasticity boxes (33) through the crisscross fixed mounting of bolt symmetry, and are a plurality of all be equipped with elasticity ball (331) in the cavity of elasticity box (33), it is a plurality of the outer wall of elasticity ball (331) all with a plurality of the inner wall of elasticity box (33) contacts but not fixed.

4. The grain screening device of claim 1, wherein the grain screening device comprises: the top center department of screening jar (1) is fixed with into hopper (14) through the bolt, the bottom center department of going into hopper (14) runs through the bolt and is equipped with spiral pan feeding pipe (15), spiral pan feeding pipe (15) are kept away from the one end of going into hopper (14) runs through perpendicularly the casing of screening jar (1) extends to its inside, the bottom of spiral pan feeding pipe (15) is crossed through perpendicularly through the bolt and is equipped with a plurality of branch material pipes (16).

5. The grain screening device of claim 4, wherein the grain screening device comprises: screening jar (1) with one side level that air-out pipeline (21) is relative runs through and is equipped with first debris export (17), install debris collecting box (4) through the bolt on the inner wall of first debris export (17), there is apron (41) through hinged joint in the discharge gate of debris collecting box (4).

6. The grain screening device of claim 4, wherein the grain screening device comprises: the front end of the screening tank (1) horizontally penetrates through a second sundries outlet (11), and a grain outlet (18) vertically penetrates through the center of the bottom end of the screening tank (1).

7. The grain screening device of claim 1, wherein the grain screening device comprises: four apex angles department of backup pad (12) bottom install shock attenuation supporting legs subassembly (13) one by one through the bolt.

8. The grain screening device of claim 1, wherein the grain screening device comprises: the first air blower (2) and the second air blower (5) are provided with a filter screen (7) on the inner wall of the air inlet through bolts.