CN203018304U

CN203018304U - Duplex cleaning screen

Info

Publication number: CN203018304U
Application number: CN 201220645051
Authority: CN
Inventors: 刘章杰; 张德喜; 张涛; 孙风国
Original assignee: SHANDONG YIKAI STORAGE ENGINEERING Co Ltd
Current assignee: Liaoning Yang Yang Storage Engineering Co.,Ltd.; Liaoning Yi Kai Storage Engineering Co.,Ltd.
Priority date: 2012-11-29
Filing date: 2012-11-29
Publication date: 2013-06-26
Anticipated expiration: 2022-11-29

Abstract

The utility model belongs to the field of unprocessed grain cleaning equipment, and particularly relates to a duplex cleaning screen. The duplex cleaning screen comprises a machine case and a screen body, and the screen body is installed in the machine case in an inclined mode. The screen body comprises an outer screen drum, a middle screen drum and an inner screen drum, wherein the outer screen drum, the middle screen drum and the inner screen drum are coaxially arranged, and are fixedly connected through connection rods from inside to outside. The lengths of the outer screen drum, the middle screen drum and the inner screen drum are lengthened in sequence, the diameters of the screen holes of the outer screen drum, the middle screen drum and the inner screen drum are enlarged in sequence, the front end of the inner screen drum is connected with a feeding port, the rear end of the inner screen drum is connected with a driving motor through a transmission mechanism, and the front end of the inner screen drum is higher than the rear end of the inner screen drum. A first baffle and a second baffle are arranged inside the machine case, the first baffle is arranged between the rear ends of the outer screen drum and the middle screen drum, and the second baffle is arranged between rear ends of the middle screen drum and the inner screen drum. A small impurity hopper is correspondingly arranged below the outer screen drum, and a clean wheat hopper, a clean corn hopper and a big impurity hopper are respectively and correspondingly arranged below the rear ends of the outer screen drum, the middle screen drum and the inner screen drum. Through the duplex cleaning screen, the screening of corns and wheat can be achieved without replacing screens, one machine can be used for multiple purposes, and equipment cost is greatly reduced.

Description

Compound cleaning sieve

Technical field

The utility model relates to a kind of compound cleaning sieve, belongs to raw grain cleaning equipment field, is used for the feed processing industry.

Background technology

owing to existing various large impurity (as straw in raw grain, corncob, fag end, the fresh kidney beans bar, the fresh kidney beans skin, wood particle, masonry, clod etc.), small impurities is (as sandstone, clod etc.) and partly gently mix (as the wheat hair, the wheat skin, the corn hair, maize peel, dust etc.), therefore need to impurity be removed with raw grain cleaning equipments such as cylindrical sieves, at present, the cylindrical sieve of domestic production mostly is individual layer screen drum or double-deck screen drum, it in use, restriction because of screen cloth, an equipment can only be cleared up a kind of material, in the time will clearing up two kinds of materials, just must change compass screen surface, or sieve with two cleanings, so just increased manpower, financial resources, use inconvenient, the power of cleaning sieve is built-in, because dust in sieve nest is many, has potential safety hazard, the lower assorted angle that struggles against of the cleaning sieve that each producer's making is at present produced is little, and it is many that impurity accumulates, and the cleaning frequency is high, labor intensive.

The utility model content

According to above deficiency of the prior art, the technical problems to be solved in the utility model is: provide a kind of simple and reasonable, can realize a tractor serves several purposes, reduce the compound cleaning sieve of equipment cost.

compound cleaning sieve described in the utility model, comprise casing and sieve nest, sieve nest is oblique to be arranged in casing, charging aperture is set on casing, the small impurities hopper, large impurity hopper, the clean grain hopper of wheat and the clean grain hopper of corn, sieve nest comprises the outer screen drum of coaxial setting, middle screen drum and interior screen drum, the three is fixedly connected with by the connecting rod ecto-entad, outer screen drum, middle screen drum, the length of interior screen drum increases successively, screen-aperture increases successively, interior screen drum front end connects charging aperture, the rear end connects drive motors by transmission mechanism, the front end of interior screen drum is higher than the rear end, casing inside arranges baffle plate one, two road baffle plates, outside one baffle plate is positioned at, between middle screen drum rear end, two road baffle plates are arranged in, between interior screen drum rear end, correspondence arranges the small impurities hopper and is positioned at below outer screen drum, outward, in, the below of interior screen drum rear end correspondence respectively arranges the clean grain hopper of wheat, the clean grain hopper of corn, large impurity hopper.

This compound cleaning sieve mainly utilizes the difference of corn, wheat, impurity particle size to reach the purpose of cleaning impurity.By three layers of screen drum are set, need not to change the screening that screen cloth can be realized corn, two kinds of materials of wheat, realized a tractor serves several purposes of cleaning sieve, reduced equipment cost.

Described drive motors is positioned at the outside of casing, prevents that the dust in sieve nest from entering in drive motors, has guaranteed compound cleaning sieve security and stability in use.

Headwall and the horizontal plane angle of described small impurities hopper, large impurity hopper are 55 ° ~ 65 °, facilitate impurity to flow automatically, and prevent from impurity accumulating in a large number in hopper from having saved manpower.

Described sieve nest comprises bracing frame and compass screen surface, and compass screen surface is fixed on bracing frame by securing member, when compass screen surface need to be changed, its dismounting is got final product, and is easy to maintenance.

Described casing top arranges the inlet scoop, the inlet scoop connects the pulse dirt catcher by aspiration channel, the pulse dirt catcher is connected with blower fan, remove dust and the light impurity that is mixed in grain by pulse dirt catcher, blower fan, prevent the discharge of a large amount of dusts, ensure normal working environment, be conducive to the healthy of staff.

The beneficial effect that the utility model compared with prior art has is:

This compound cleaning sieve structure is reasonable, by three layers of screen drum are set, utilize the difference of corn, wheat, impurity particle size to reach the purpose of clearing up impurity, need not to change the screening that screen cloth can be realized corn, two kinds of materials of wheat, realize a tractor serves several purposes, greatly reduced equipment cost; Drive motors is external, can prevent that the dust in sieve nest from entering, and guarantees the normal operation of equipment; Headwall and the horizontal plane angle of small impurities hopper, large impurity hopper are designed to 55 ° ~ 65 °, can facilitate the impurity gravity flow, prevent that impurity from accumulating, and saved manpower.

Description of drawings

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

In figure: 1, casing; 2, charging aperture; 3, inlet scoop; 4, aspiration channel; 5, outer screen drum; 6, middle screen drum; 7, interior screen drum; 8, one baffle plate; 9, two road baffle plates; 10, transmission mechanism; 11, pulse dirt catcher; 12, blower fan; 13, drive motors; 14, large impurity hopper; 15, the clean grain hopper of corn; 16, the clean grain hopper of wheat; 17, small impurities hopper.

The specific embodiment

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

as shown in Figure 1, this compound cleaning sieve comprises casing 1 and sieve nest, sieve nest is oblique to be arranged in casing 1, charging aperture 2 is set on casing 1, small impurities hopper 17, large impurity hopper 14, the clean grain hopper 16 of wheat and the clean grain hopper 15 of corn, sieve nest comprises the outer screen drum 5 of coaxial setting, middle screen drum 6 and interior screen drum 7, the three is fixedly connected with by the connecting rod ecto-entad, outer screen drum 5, middle screen drum 6, the length of interior screen drum 7 increases successively, screen-aperture increases successively, interior screen drum 7 front ends connect charging aperture 2, the rear end connects drive motors 13 by transmission mechanism 10, the front end of interior screen drum 7 is higher than the rear end, casing 1 inside arranges baffle plate 8 one, two road baffle plates 9, one baffle plate 8 is positioned at outer screen drum 5 rear ends, between middle screen drum 6 rear ends, two road baffle plates 9 are arranged in screen drum 6 rear ends, between interior screen drum 7 rear ends, correspondence arranges small impurities hopper 17 and is positioned at outer screen drum 5 belows, outward, in, the below of interior screen drum 7 rear ends correspondence respectively arranges the clean grain hopper 16 of wheat, the clean grain hopper 15 of corn, large impurity hopper 14.

Wherein: drive motors 13 is positioned at the outside of casing 1; Outer wall and the horizontal plane angle of small impurities hopper 17, large impurity hopper 14 are 55 ° ~ 65 °; Sieve nest comprises bracing frame and compass screen surface, and compass screen surface is fixed on bracing frame by securing member; Casing 1 top arranges inlet scoop 3, and inlet scoop 3 connects pulse dirt catcher 11 by aspiration channel 4, and pulse dirt catcher 11 is connected with blower fan 12, selects different blower fan 12 and pulse dirt catcher 11 according to the difference of output, and air quantity is controlled by butterfly valve.

Its course of work is as follows:

1, material is corn: need the corn of cleaning to be flowed in the interior screen drum 7 of sieve nest by charging aperture 2, rotation by sieve nest, material carries out continuous screen in sieve nest, fall in screen drum 6 thereby make material and pass sieve aperture less than the impurity of interior screen drum 7 sieve apertures, fall into large impurity hopper 14 and stay to advance forward in interior screen drum 7 greater than the large impurity of interior screen drum 7 sieve apertures, unsaturated grain and small impurities less than middle screen drum 6 sieve apertures pass middle screen drum 6 and outer screen drum 5 sieve apertures inflow small impurities hopper 17 and the clean grain hoppers 16 of wheat, staying materials in middle screen drum 6 pushes ahead and falls into the clean grain hopper 15 of corn, light assorted and dust through the air channel by blower fan 12 sucking-offs.

2, material is wheat: need the wheat of cleaning to be flowed in the interior screen drum 7 of sieve nest by charging aperture 2, rotation by sieve nest, material carries out continuous screen in sieve nest, fall in screen drum 6 thereby make material and pass sieve aperture less than the impurity of interior screen drum 7 sieve apertures, fall into large impurity hopper 14 and stay to advance forward in interior screen drum 7 greater than the large impurity of interior screen drum 7 sieve apertures, material and small impurities less than middle screen drum 6 sieve apertures pass in the middle screen drum 6 outer screen drums 5 of sieve apertures inflow, fall into the clean grain hopper 15 of corn and stay to advance forward in middle screen drum 6 greater than the partial impurities of middle screen drum 6 sieve apertures, small impurities less than outer screen drum 5 sieve apertures passes outer screen drum 5 sieve apertures inflow small impurities hoppers 17, staying materials in outer screen drum 5 pushes ahead and falls into the clean grain hopper 16 of wheat, light assorted and dust through the air channel by blower fan 12 sucking-offs.

Claims

1. a compound cleaning sieve, comprise casing (1) and sieve nest, and sieve nest is oblique to be arranged in casing (1), it is characterized in that: charging aperture (2) is set on casing (1), small impurities hopper (17), large impurity hopper (14), the clean grain hopper of the clean grain hopper of wheat (16) and corn (15), sieve nest comprise the outer screen drum (5) of coaxial setting, middle screen drum (6) and interior screen drum (7), the three is fixedly connected with by the connecting rod ecto-entad, and is outer, in, the length of interior screen drum increases successively, screen-aperture increases successively, and interior screen drum (7) front end connects charging aperture (2), and the rear end connects drive motors (13) by transmission mechanism (10), the front end of interior screen drum (7) is higher than the rear end, and casing (1) inside arranges one baffle plate (8), two road baffle plates (9) are outside one baffle plate (8) is positioned at, between middle screen drum rear end, two road baffle plates (9) are arranged in, between interior screen drum rear end, correspondence arranges small impurities hopper (17) and is positioned at below outer screen drum (5), and is outer, in, the below of interior screen drum rear end correspondence respectively arranges the clean grain hopper of wheat (16), the clean grain hopper of corn (15), large impurity hopper (14).

2. compound cleaning according to claim 1 is sieved, and it is characterized in that: described drive motors (13) is positioned at the outside of casing (1).

3. compound cleaning according to claim 1 is sieved, and it is characterized in that: headwall and the horizontal plane angle of described small impurities hopper (17), large impurity hopper (14) are 55 ° ~ 65 °.

4. compound cleaning according to claim 1 is sieved, and it is characterized in that: described sieve nest comprises bracing frame and compass screen surface, and compass screen surface is fixed on bracing frame by securing member.

5. compound cleaning according to claim 1 is sieved, it is characterized in that: described casing (1) top arranges inlet scoop (3), inlet scoop (3) connects pulse dirt catcher (11) by aspiration channel (4), and pulse dirt catcher (11) is connected with blower fan (12).