CN205361963U - Clear grain ware of gravity flow selection by winnowing - Google Patents

Abstract

The utility model relates to an air selection type primary cleaning device in grain machinery, in particular to a self-flow type air selection grain cleaning device. The box body is a parallelogram rhombus cubic structure, the front side is a louver type air inlet, and the rear side is a bent plate structure. The J-shaped bending plates are arranged in steps, the rear end and the left and right ends are fixed on the box body, and the middle is hooked forward in a parabolic manner. The cabinet is externally connected to the suction and dust removal device through the wind bucket and the air duct. The advantage is that the grain flows from top to bottom without active power supply, and the grain is fully thrown upward under the action of the J-shaped bending plate, so that light impurities and dust can be effectively removed. The whole machine is simple in structure, small in size, easy to move and use, high in efficiency, large in output and low in cost.

Description

A kind of self-flowing air separation grain cleaning device

technical field

The utility model relates to a sorting device in grain machinery, in particular to a winnowing type grain cleaner. It is suitable for grain deep processing enterprises and primary cleaning and sorting of grain before grain storage.

Background technique

Grain sorting equipment is divided into first-level sorting, second-level sorting, and third-level sorting, among which the first-level sorting is also called primary sorting. After the grain is harvested, there are a lot of debris such as weeds, straw, rope, bricks, stones, glass fragments, etc., and these debris must be sorted and cleaned before the grain is further processed. The main function of the primary selection equipment is to remove large sundries, chaff, dust, etc. in the grain. Therefore, for primary grain selection equipment, basically every grain depot must be equipped. Screening is divided into winnowing type, screening type and gravity sorting type, and the utility model is winnowing type sorting equipment. The principle of winnowing and cleaning sieve is to absorb the dust and light impurities in the grain through the fan on the side during the free fall process of the grain, so as to achieve the purpose of primary separation.

At present, the existing winnowing-type grain primary selection equipment is generally composed of a large flat screen and winnowing equipment. The equipment is very large and complex in structure. It is very inconvenient to operate and use in different warehouses, and it is difficult to move; During the free fall process, the effect of fully flying cannot be achieved, so the sorting efficiency is low.

Contents of the invention

The technical problem to be solved by the utility model is to overcome the deficiencies of the above-mentioned prior art, and provide a self-flowing air-selected grain cleaner with simple structure, convenient use, high cleaning efficiency and low cost.

The technical solution of the utility model is to include a box body 4 and side plates 15 located on both sides, the upper end is provided with a grain inlet 1, and the lower end is provided with a grain outlet 16, and it is characterized in that: the box body 4 is a parallelogram Diamond-shaped cubic structure; the front side of the box body 4 is a louver-type air inlet structure, and the rear side of the box body 4 is a bent plate structure; The bending plates 3 are arranged in steps, the left and right ends of each J-shaped bending plate 3 are fixed on the box body 4, the front end is hooked forward and placed horizontally in the box body 4, and each J-shaped bending plate 3 There is an air suction port 12 in the gap between them; the louver type air inlet structure is formed by the gap arrangement of blades 17, and an air inlet 18 is arranged between each blade 17; There is a link mechanism that can adjust the air volume of the blade; the outer box 4 of the J-shaped bending plate 3 is connected with an air bucket 6, and the inner cavity of the box 4 is connected with the suction and dust removal device through the air bucket 6 and the air duct 7 .

The suction and dust removal device includes a brake cage 8, an air shutoff device 22, a light miscellaneous outlet 11, a blower fan 9 and an ash collection box 10, and the relevant air device 22 and light miscellaneous outlet 11 are connected in series under the brake cage 8, and the light miscellaneous outlet 11 is connected in series. The inside of the outlet 11 is provided with a screw auger 23 for conveying sundries; the top of the brake cage 8 is connected with the fan 9, and the fan 9 is provided with an ash collecting box 10.

The vanes 17 in the louver-type air inlet structure have an "L"-shaped cross section; both ends of each vane 17 are supported on the side plate 15 by screws 20 .

The cross-section of the J-shaped bending plate 3 is a three-bend structure hooked forward, the angles between the three bends are 150-170° and 160-170°, and the rear side and the middle side are long sides. The front side is the short side that hooks forward.

A filter screen 21 is sealed on the outside of the box body 4 and the J-shaped bent plate 3 .

The left and right ends of the J-shaped bent plate 3 are fixed on the box body 4 by screw nuts 5, or are directly welded on the box body 4.

The linkage mechanism that can adjust the blade air volume includes an adjustment handle 13 and a connecting rod 14, and the side plate 15 is provided with a long slot 19 that allows each screw rod 20 to swing therein; the connecting rod 14 and each blade The screw rod 20 on the 17 is associated, and can drive the screw rod 20 on each blade 17 to swing in the slotted hole 19, to adjust the size of the air inlet 18.

The inner side of the casing 4 is provided with the baffle plate 2 that can make the grain in the grain inlet 1 be sent to the J-shaped bending plate.

The light miscellaneous outlet 11 is provided with a screw auger 23 that can send light miscellaneous.

The utility model has the advantages compared with the prior art:

(1) The structure of the whole machine is simple, the box body is small and exquisite, the overall size is small, and it is very convenient to move and use;

(2) High cleaning efficiency, large output, low cost and good sorting effect;

(3) The movement mode is entirely from the grain flowing from top to bottom, without active power supply, and the sorting is carried out by the free fall of the grain, which saves energy, has low noise, and has little impact on the environment;

(4) The sieve plate of the sieve box is composed of several stepped cross-stacked J-shaped bent plates, so that the grain can be fully beaten and raised on each J-shaped bent plate during the process of gravity falling. , so that light impurities such as chaff, dust, and small straw in the grain are fully separated by air suction under the action of the fan.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a structural schematic diagram inside the box body 4;

FIG. 3 is a structural schematic diagram of the external linkage mechanism of the box 4 in FIG. 1 .

Symbols in the figure: 1-grain inlet, 2-baffle plate, 3-bending plate, 4-cabinet, 5-screw nut, 6-wind bucket, 7-air duct, 8-brake cage, 9-fan , 10-ash collection box, 11-light miscellaneous outlet, 12-suction port, 13-adjusting handle, 14-connecting rod, 15-side plate, 16-grain outlet, 17-blade, 18-air inlet, 19- Slotted hole, 20-screw rod, 21-filter screen, 22-air shutoff device, 23-screw auger.

detailed description

Below in conjunction with accompanying drawing, the utility model embodiment is described in further detail:

The embodiment of the utility model includes two parts: a screen box and a suction dust removal device.

The sieve box is a parallelogram rhombic cubic box structure, the upper end of the box body 4 is the grain inlet 1, the lower end is the grain outlet 16, the front side is a louver type air inlet structure, and the rear side is a bent plate structure , the left and right sides are side plates 15 that can support blades 17 and bent plates 3 .

The bent plate structure is composed of 3 horizontally striped bent plates arranged in steps. The cross section of the bending plate 3 is “J” shape, the left and right ends of each J-shaped bending plate 3 are respectively fixed on the side plate 15 of the box by the screw nut 5, and the front end of the J-shaped bending plate 3 hooks forward The horizontal lines are arranged in the box body 4, and there are gaps between each J-shaped bent plate 3 to leave an air suction port 12. The inner side of the casing 4 is provided with the baffle plate 2 that can make the grain in the grain inlet 1 be sent to the J-shaped bending plate. The outer side of the bent plate 3 on the rear side of the casing 4 is sealed with a filter screen 21, and is connected with an air bucket 6, so that the inner cavity of the casing 4 is connected with the air suction and dust removal device through the air bucket 6 and the air duct 7.

The louver-type air inlet structure is formed by gap arrangement of blades 17 . The blades 17 have an "L"-shaped cross section, and the left and right ends of each blade 17 are respectively supported on the side plates 15 by the screw rods 20 . An air inlet 18 is provided between each blade 17 . The side plate 15 on the outside of the box body 4 is also provided with a link mechanism that can adjust the air volume of the blades.

The linkage mechanism that can adjust the blade air volume includes an adjustment handle 13 and a connecting rod 14, and the side plate 15 is provided with a long slot 19 that allows each screw rod 20 to swing therein; the connecting rod 14 and each blade The screw rod 20 on the 17 is associated, and can drive the screw rod 20 on each blade 17 to swing in the slotted hole 19, to adjust the size of the air inlet 18.

The suction and dust removal device includes a brake cage 8, an air shutoff device 22, a light miscellaneous outlet 11, a blower fan 9 and an ash collection box 10, and the relevant air device 22 and light miscellaneous outlet 11 are connected in series under the brake cage 8, and the light miscellaneous outlet 11 is connected in series. The inside of the outlet 11 is provided with a screw auger 23 for transporting sundries; the top of the brake cage 8 is connected with the fan 9, and the fan 9 is provided with an ash collection box 10.

The cross-section of the J-shaped bending plate 3 is a three-bend structure hooked forward, the angles between the three bends are 150-170° and 160-170°, and the rear side and the middle side are long sides. The front side is the short side that hooks forward. The left and right ends of the J-shaped bending plate 3 can be fixedly connected to the box body 4 by screw nuts 5, or can be directly welded on the box body 4.

When the utility model works, the grain is sent into the box body 4 from the grain inlet 1, falls freely on the J-shaped bending plate 3 on the bottom side under the diversion of the baffle plate 2, and falls on the five-stage bending plate 3 Fully thrown up on the J-shaped steps, under the effect of gravity, it flows down from the grain inlet 1 and comes out from the grain outlet 16. When the grain passes through the air suction port 12 in the gap between the two plates of the J-shaped bending plate 3, the light impurities mixed in the grain are sucked in from the air suction port 12, the wind bucket 6, and the air duct 7 under the suction force of the fan 9. Separation is carried out in the suction and dust removal device, and the clean grain is directly discharged from the grain outlet 16 of the box body, thereby completing the winnowing and separation. To the inhaled light impurities in the suction dust removal device, in the brake cage 8 and the air shutoff device 22, the chaff and dust in the light impurities are separated again. Wherein the chaff is discharged from the light miscellaneous outlet 11, and the dust is collected by the ash collecting box 10.

The air intake in the casing 4 can be regulated by the adjusting handle 13 .

The utility model has the advantages of simple structure, small box body, high sorting efficiency, large output, low cost, low noise and less environmental pollution, and is a high-efficiency grain primary selection equipment for energy saving and emission reduction.

Claims (9)

1. A self-flowing air-selection grain cleaner, including a box body (4) and side plates (15) on both sides, with a grain inlet (1) at the upper end and a grain outlet (16) at the lower end, It is characterized in that: the box body (4) is a parallelogram diamond-shaped cube structure; the front side of the box body (4) is a louver-type air inlet structure, and the rear side of the box body (4) is a bent plate structure; the said The bent plate structure is composed of "J"-shaped cross-section, horizontal strip-shaped bent plates (3) arranged in steps, and the left and right ends of each J-shaped bent plate (3) are fixed on the box body (4 ), the front end is hooked forward and placed horizontally in the box body (4), and there is an air suction port (12) in the gap between each J-shaped bending plate (3); the louver-type air inlet structure is composed of blades (17) Arranged in gaps, each blade (17) is provided with an air inlet (18); the side plate (15) on one side of the box (4) is provided with a connecting rod that can adjust the air volume of the blades Mechanism; the outer box (4) of the J-shaped bending plate (3) is connected with an air bucket (6), and the inner cavity of the box (4) is connected with the air suction and dust removal device through the air bucket (6) and the air duct (7) connected. 2. A self-flowing air-selection grain cleaner as claimed in claim 1, characterized in that: the suction and dust removal device includes a brake cage (8), an air lock (22), a light miscellaneous outlet (11 ), blower fan (9) and ash collection box (10), the relevant wind device (22) and light miscellaneous outlet (11) are connected in series under the brake cage (8), and the light miscellaneous outlet (11) is provided with transporting sundries Spiral auger (23); the top of the brake cage (8) is connected with the blower fan (9), and the blower fan (9) is provided with an ash collection box (10). 3. A self-flowing air-selection grain cleaner as claimed in claim 1, characterized in that: the blades (17) in the louver-type air inlet structure have an "L"-shaped cross section; each blade (17 ) are respectively supported by screw rods (20) on the side plates (15). 4. A self-flowing air-selection grain cleaner as claimed in claim 1, characterized in that: the J-shaped bending plate (3) has a cross-section of a three-fold bending structure hooked forward, three The angles between the bends are 150-170o and 160-170o, with the back and middle sides being the long side and the front side being the short side hooked forward. 5. A self-flowing air-selection grain cleaner as claimed in claim 1, characterized in that: a layer of filter net (21) is sealed on the box body (4) and outside the J-shaped bending plate (3) . 6. A self-flowing air-selection grain cleaner as claimed in claim 1, characterized in that: the left and right ends of the J-shaped bending plate (3) are fixed on the box body (4) by screw nuts (5), Or directly welded on the box body (4). 7. A self-flowing wind-selected grain cleaner as claimed in claim 1 or 3, characterized in that: the linkage mechanism that can adjust the air volume of the blades includes an adjustment handle (13) and a connecting rod (14) , the side plate (15) is provided with a slotted hole (19) in which each screw (20) can swing; the connecting rod (14) is associated with the screw (20) on each blade (17), and The screw rod (20) on each blade (17) can be driven to swing in the slotted hole (19) to adjust the size of the air inlet (18). 8. A self-flowing air-selection grain cleaner as claimed in claim 1, characterized in that: the inner side of the box body (4) is provided so that the grains in the grain inlet (1) can be sent to the J-shaped bending plate ( 3) on the bezel (2). 9. A self-flowing air-selection grain cleaner as claimed in claim 1 or 2, characterized in that: the light miscellaneous outlet (11) is provided with a screw auger (23) that can send out light miscellaneous.