Screening device for grain processing

Abstract

The utility model discloses a screening device for grain processing, which comprises a box body, a screen fixed in the box body, a collecting box arranged on one side of the box body, a blocking net fixed in the collecting box, a centrifugal fan fixed on the outer wall of the top of the collecting box, a corrugated pipe connected between the collecting box and the box body, and an air knife fixed in the box body. An air pump is arranged on one side of the box body, an air outlet of the air pump is connected with the air knife through a hose, and a cleaning mechanism is arranged at the bottom of the blocking net. According to the grain screening device, air is blown from the bottom of the screen through the air knife, straw chippings in grains can be blown up and then sucked into the collecting box through the centrifugal fan, and therefore fine stones in the grains can be screened and removed, the effect of removing the straw chippings in the grains can be achieved, and the grain screening effect is better.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of grain processing, and particularly relates to a screening device for grain processing. BACKGROUND

[0002] Grain processing refers to an operating activity of converting raw grain into semi-finished grain, finished grain, or converting semi-finished grain into finished grain through processing. In the grain processing process, the grain needs to be screened to remove small stones in the grain. At present, when the grain is screened, the straw scraps existing in the grain are difficult to remove, thereby resulting in poor screening effect of the grain. Therefore, it is urgent to design a screening device for grain processing to solve the above problems. SUMMARY

[0003] The utility model aims at providing a screening device for grain processing to solve the above problems in the prior art.

[0004] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0005] A screening device for grain processing, comprising a box body, a screen is fixed inside the box body, a collecting box is arranged on one side of the box body, a blocking net is fixed inside the collecting box, a centrifugal fan is fixed on the top outer wall of the collecting box, a corrugated pipe is connected between the collecting box and the box body, a wind knife is fixed inside the box body, the wind knife is located at the bottom of the screen, a gas pump is arranged on one side of the box body, the gas outlet of the gas pump is connected with the wind knife through a hose, and a cleaning mechanism is arranged at the bottom of the blocking net.

[0006] Further, a bottom plate is arranged at the bottom of the box body, an elastic support assembly is fixed between the bottom plate and the box body, a vibration motor is fixed on the bottom outer wall of the box body, the bottom of the collecting box is fixed with the bottom plate, and the gas pump is fixed on the top of the bottom plate.

[0007] Further, two baffles are fixed on the top inner wall of the box body, and the baffles are located at the top of the wind knife.

[0008] Further, the cleaning mechanism comprises a brush, a drawer is inserted into the outer wall of one side of the collecting box, a slide rail is fixed inside the collecting box, an installation seat is slidably connected to the outer portion of the slide rail, the brush is fixed on the top of the installation seat, and the top of the brush is in contact with the blocking net.

[0009] Further, a feeding hopper is fixed on the top outer wall of the box body, a discharge port one is arranged on the bottom outer wall of the box body, a discharge port two matched with the screen is arranged on the outer wall of one side of the box body, and a guide plate matched with the discharge port one is fixed inside the box body.

[0010] Further, the bottom of the mounting seat is fixed with a pull rod, one end of the pull rod extends to the outside of the collecting box and is fixed with a handle.

[0011] In the above technical scheme, the grain processing screening device has the advantages that: the wind knife blows from the bottom of the screen mesh to blow up the straw scraps in the grain, and then the centrifugal fan inhales and collects the straw scraps in the collecting box, so that the screening and removal of small stones in the grain and the removal of straw scraps in the grain are realized, and the screening effect of the grain is better; the blocking net can block the straw scraps, the drawer can collect the straw scraps, the drawer is pulled out from the inside of the collecting box, and the straw scraps are conveniently cleaned; the pull rod drives the movement of the mounting seat, the brush can clean the straw scraps attached to the bottom of the blocking net, and the cleaning and maintenance of the blocking net are more convenient. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0013] Fig. 1 The front view structural schematic diagram of the grain processing screening device embodiment of the present application is provided.

[0014] Fig. 2 The internal structure schematic diagram of the grain processing screening device embodiment of the present application is provided.

[0015] Fig. 3 The collecting box structure schematic diagram of the grain processing screening device embodiment of the present application is provided.

[0016] Explanation of reference signs:

[0017] 1 box body, 2 bottom plate, 3 elastic support assembly, 4 screen mesh, 5 feeding hopper, 6 flow guide plate, 7 discharge port one, 8 vibration motor, 9 air knife, 10 air pump, 11 discharge port two, 12 baffle, 13 collecting box, 14 corrugated pipe, 15 blocking net, 16 centrifugal fan, 17 sliding rail, 18 mounting seat, 19 brush, 20 pull rod, 21 handle, 22 drawer. DETAILED DESCRIPTION

[0018] In order to make those skilled in the art better understand the technical scheme of the present application, the present application will be further described in detail with reference to the drawings.

[0019] As Figs. 1-3The utility model discloses a kind of screening devices for grain processing, as shown in the utility model embodiment, including box 1, the inside fixed screen 4 of box 1, the side of box 1 is provided with collection box 13, the inside fixed barrier net 15 of collection box 13, centrifugal fan 16 is fixed on the top outer wall of collection box 13, corrugated pipe 14 is connected between collection box 13 and box 1, the inside fixed air knife 9 of box 1, air knife 9 is located at the bottom of screen 4, the side of box 1 is provided with air pump 10, the air outlet of air pump 10 is connected with air knife 9 by hose, cleaning mechanism is provided at the bottom of barrier net 15.

[0020] Specifically, in the embodiment, including box 1, the inside fixed screen 4 of box 1, the mesh diameter of screen 4 is less than grain particle, and greater than the particle size of small stone in grain, screen 4 is used for screening small stone in grain, the side of box 1 is provided with collection box 13, collection box 13 is not in contact with box 1, the inside fixed barrier net 15 of collection box 13, barrier net 15 can block straw scrap, centrifugal fan 16 is fixed on the top outer wall of collection box 13, corrugated pipe 14 is connected between collection box 13 and box 1, centrifugal fan 16 can suck straw scrap into collection box 13, the inside fixed air knife 9 of box 1, air knife 9 is located at the bottom of screen 4, air knife 9 blows to screen 4, the side of box 1 is provided with air pump 10, air pump 10 is not in contact with box 1 either, the air outlet of air pump 10 is connected with air knife 9 by hose, so that air pump 10 can be connected into compressed air to air knife 9, cleaning mechanism is provided at the bottom of barrier net 15, and cleaning mechanism is used for barrier net 15.

[0021] The utility model provides a kind of screening devices for grain processing, air knife 9 is blown from the bottom of screen 4, so that straw scrap in grain can be blown up, then be inhaled into collection box 13 by centrifugal fan 16, so it can realize the screening removal of small stone in grain, and the effect of removing straw scrap in grain, so that the screening effect of grain is better.

[0022] The utility model provides another embodiment provided by the utility model discloses a box 1's bottom is provided with bottom plate 2, and bottom plate 2 and box 1 between fixed have elastic support subassembly 3, and elastic support subassembly 3 is prior art, and it can play the effect of elastic support to box 1, and the bottom outer wall of box 1 is fixed with vibration motor 8, and vibration motor 8 drives box 1 to produce vibration when working, and the bottom of collecting box 13 is fixed with bottom plate 2, and air pump 10 is fixed on the top of bottom plate 2, the top inner wall of box 1 is fixed with two baffle 12, and baffle 12 is located at the top of air knife 9, and the position of bellows 14 bottom is also located between two baffle 12, so that air knife 9 can blow the wind to between two baffle 12, and then make straw chaff can smoothly enter collecting box 13 from bellows 14, and the top outer wall of box 1 is fixed with feed inlet 5, and the grain needing screening is added from feed inlet 5 into box 1, and the bottom outer wall of box 1 is provided with discharge port one 7, and the screened stone flows out from discharge port one 7, and the outer wall of one side of box 1 is provided with discharge port two 11 matched with screen 4, and the grain flows out from discharge port two 11, and the inside of box 1 is fixed with guide vane 6 matched with discharge port one 7.

[0023] Another embodiment provided by the utility model, the cleaning mechanism includes brush 19, and the outer wall of one side of collecting box 13 is inserted with drawer 22, and straw chaff is collected through drawer 22, and the inside of collecting box 13 is fixed with slide rail 17, and the outside of slide rail 17 is slidably connected with mounting seat 18, and brush 19 is fixed at the top of mounting seat 18, and the top of brush 19 is in contact with blocking net 15, so that the straw chaff adhered on blocking net 15 can be cleaned when brush 19 moves, and the bottom of mounting seat 18 is fixed with pull rod 20, and one end of pull rod 20 extends to the outside of collecting box 13 and is fixed with handle 21, and handle 21 is used to conveniently pull pull rod 20, and pull rod 20 drives mounting seat 20 to move, so that brush 19 can clean the straw chaff adhered on the bottom of blocking net 15, and the cleaning and maintenance of blocking net 15 are more convenient.

[0024] Working principle: when using, the vibration motor 8 drives the box 1 to produce vibration, and makes the centrifugal fan 16 and air pump 10 work, the working of air pump 10 passes into the air knife 9 compressed air, the working of centrifugal fan 16 extracts the air in the box 1, the grain needing screening is added from the feed inlet 5 into the inside of box 1, makes the small stone pass through the screen 4, and the grain with larger particle size slides along the screen 4, when the grain passes through the top of air knife 9, the wind from the air knife 9 blows up the straw chaff in the grain, makes the straw chaff enter the inside of collecting box 13 through the bellows 14, thereby realizes the grain size particle screening and the effect of removing the straw chaff.

[0025] The above has only described certain exemplary embodiments of the present application by way of illustration, and it is needless to say that the described embodiments can be modified in various ways without departing from the spirit and scope of the present application for those skilled in the art. Therefore, the above drawings and descriptions are illustrative in nature, and should not be understood as limiting the scope of protection of the claims of the present application.

Claims

1. A screening device for grain processing, characterized in that, The device includes a housing (1), inside which a screen (4) is fixed. A collection box (13) is provided on one side of the housing (1), inside which a barrier net (15) is fixed. A centrifugal fan (16) is fixed on the top outer wall of the collection box (13). A corrugated pipe (14) connects the collection box (13) and the housing (1). An air knife (9) is fixed inside the housing (1) and is located at the bottom of the screen (4). An air pump (10) is provided on one side of the housing (1), and the air outlet of the air pump (10) is connected to the air knife (9) via a hose. A cleaning mechanism is provided at the bottom of the barrier net (15).

2. The grain processing screening device according to claim 1, characterized in that, The bottom of the box (1) is provided with a base plate (2), and an elastic support assembly (3) is fixed between the base plate (2) and the box (1). A vibration motor (8) is fixed on the bottom outer wall of the box (1). The bottom of the collection box (13) is fixed to the base plate (2), and the air pump (10) is fixed on the top of the base plate (2).

3. The grain processing screening device according to claim 1, characterized in that, Two baffles (12) are fixed to the top inner wall of the box (1), and the baffles (12) are located on the top of the air knife (9).

4. A grain processing screening device according to claim 1, characterized in that, The cleaning mechanism includes a brush (19), a drawer (22) is inserted into one side of the outer wall of the collection box (13), a slide rail (17) is fixed inside the collection box (13), a mounting base (18) is slidably connected to the outside of the slide rail (17), the brush (19) is fixed to the top of the mounting base (18), and the top of the brush (19) is in contact with the barrier net (15).

5. A grain processing screening device according to claim 1, characterized in that, The top outer wall of the box (1) is fixed with a feed hopper (5), the bottom outer wall of the box (1) is provided with a discharge port one (7), the outer wall of one side of the box (1) is provided with a discharge port two (11) adapted to the screen (4), and the inside of the box (1) is fixed with a guide plate (6) adapted to the discharge port one (7).

6. A grain processing screening device according to claim 4, characterized in that, A pull rod (20) is fixed to the bottom of the mounting base (18), and one end of the pull rod (20) extends to the outside of the collection box (13) and is fixed with a handle (21).

Images