CN108580297B

CN108580297B - Multiple combined impurity removing system

Info

Publication number: CN108580297B
Application number: CN201810374061.2A
Authority: CN
Inventors: 沈一青; 徐锦章; 陈丽
Original assignee: Wujiang Foodstuff Machinery Co Ltd
Current assignee: Wujiang Foodstuff Machinery Co Ltd
Priority date: 2018-04-24
Filing date: 2018-04-24
Publication date: 2023-07-28
Anticipated expiration: 2038-04-24
Also published as: CN108580297A

Abstract

The invention discloses a multiple combined impurity removal system, relates to the field of impurity removal systems, and aims to solve the problem that the conventional impurity remover cannot effectively remove various impurities in grains, so that the purity of the grains is low. The technical scheme is characterized by comprising a feeding device, wherein a first heavy impurity removing device for removing large impurities is arranged below the feeding device; the device is characterized in that a discharge hopper is arranged below the first heavy impurity removing device, and a second heavy impurity removing device for removing fine impurities and a third heavy impurity removing device for removing light impurities are arranged on the discharge hopper. The invention can effectively remove various impurities in grains, thereby improving the purity of the grains.

Description

Multiple combined impurity removing system

Technical Field

The invention relates to the field of impurity removal systems, in particular to a multiple combined impurity removal system.

Background

After the grains are collected from the field, the grains contain sundries such as leaves, roots, chaff, dust, sand and stones, shrunken grains and the like. These impurities can be classified into large impurities, fine impurities and light impurities compared with the volume of the grain. Leaves and roots are large impurities, bran hulls, shrunken grains and sand are fine impurities, and dust is light impurities. Before the grain is put in storage, a impurity remover is needed to remove the impurities.

The prior Chinese patent with the publication number of CN206444880U discloses a grain winnowing impurity remover, which comprises an impurity remover body, wherein an opening is formed in the impurity remover body, and an axial flow fan is arranged at one side opposite to the opening; the impurity removing machine is internally provided with a feeding baffle plate, a handle plate I, an inner baffle plate, a handle plate II and a discharge hole from top to bottom in sequence.

However, the grain winnowing impurity remover can only remove light impurities and light impurities with light specific gravity in grains, and cannot effectively remove large impurities and light impurities with heavy specific gravity, so that the purity of grains is low, and the problem is needed to be solved.

Disclosure of Invention

Aiming at the defects existing in the prior art, the invention aims to provide a multiple combined impurity removal system which has the advantages of effectively removing various impurities in grains and further improving the purity of the grains.

In order to achieve the above purpose, the present invention provides the following technical solutions:

the multiple combined impurity removal system comprises a feeding device, wherein a first heavy impurity removal device for removing large impurities is arranged below the feeding device; the device is characterized in that a discharge hopper is arranged below the first heavy impurity removing device, and a second heavy impurity removing device for removing fine impurities and a third heavy impurity removing device for removing light impurities are arranged on the discharge hopper.

By adopting the technical scheme, the first heavy impurity removing device can remove large impurities in grains, the second heavy impurity removing device can remove fine impurities in the grains after the grains enter the discharge hopper, and the third heavy impurity removing device can remove light impurities in the grains; the first heavy impurity removing device, the second heavy impurity removing device and the third heavy impurity removing device are matched for use, so that various impurities in grains can be effectively removed, and the purity of the grains is improved.

Further, the first heavy impurity removing device comprises a plurality of impurity removing screen cylinders positioned above the discharge hopper, and separation spirals are arranged in the impurity removing screen cylinders; one end of the impurity removal screen cylinder is connected with the feeding device, and the bottom wall of the other end of the impurity removal screen cylinder is provided with an impurity removal pipe; a first spiral impurity discharging cylinder is arranged below the impurity discharging pipe.

By adopting the technical scheme, grains can pass through the impurity removal sieve cylinder to enter the discharge hopper, and large impurities can be remained in the impurity removal sieve cylinder; in the process of pushing grains to move by the separation screw, large impurities are pushed to the impurity discharging pipe; big miscellaneous in getting into first spiral trash can through trash extraction pipe, can conveniently concentrate the processing.

Further, the impurity removal screen drum comprises a substrate, and a first screen hole area, a second screen hole area, a third screen hole area and a fourth screen hole area with gradually smaller apertures are sequentially arranged on the substrate along the direction from the feeding device to the impurity removal pipe.

Through adopting above-mentioned technical scheme, the aperture in first sieve mesh district, second sieve mesh district, third sieve mesh district and fourth sieve mesh district diminishes gradually, and the grain in first sieve mesh district, second sieve mesh district, third sieve mesh district and fourth sieve mesh district department is the trend of diminishing also, and then can prevent that big miscellaneous broken back of separating from passing the base plate and getting into in the row hopper to can effectively get rid of big miscellaneous in the grain.

Further, feed arrangement includes the feeder hopper, the feeder hopper below is provided with the average material device of being connected with a plurality of edulcoration screen cylinder.

Through adopting above-mentioned technical scheme, grain gets into from the feeder hopper, and the homoenergetic device can be with grain evenly distributed to a plurality of edulcoration screen cylinder in, and then can improve the edulcoration efficiency to big miscellaneous to improve the purity of grain.

Further, the second impurity removing device comprises a fine impurity sieve plate and a fine impurity hopper connected with the fine impurity sieve plate, and the fine impurity sieve plate is connected with the side wall of the discharge hopper, which is close to the feeding device.

By adopting the technical scheme, grains entering the discharge hopper are contacted with the fine impurity sieve plate firstly, and the grains cannot pass through the fine impurity sieve plate, so that fine impurities in the grains can pass through the fine impurity sieve plate, and the fine impurities in the grains are filtered; fine impurities passing through the fine impurity sieve plate enter the fine impurity hopper, so that the fine impurities can be conveniently concentrated.

Further, the third impurity removing device comprises a light impurity branch pipe, and the light impurity branch pipe is connected with the side wall of the discharge hopper far away from the feeding device; the light impurity branch pipe is communicated with the lower part of the discharge hopper, a grain cleaning discharge pipe is arranged, and a plurality of air inlets are formed in the side wall, far away from the light impurity branch pipe, of the grain cleaning discharge pipe.

By adopting the technical scheme, grains in the discharge hopper are discharged through the grain cleaning discharge pipe, and the air pressure in the grain cleaning discharge pipe is reduced in the discharging process, so that air outside the grain cleaning discharge pipe enters the grain cleaning discharge pipe through the air inlet; light impurities in the grains can enter the light impurity branch pipe under the action of air, so that the light impurities in the grains can be removed.

Further, one end of the light sundry branch pipe, which is far away from the grain cleaning calandria, is provided with a light sundry hopper, and the bottom of the light sundry hopper is provided with a second spiral sundry discharging cylinder.

By adopting the technical scheme, the space of the light impurity hopper is larger than that of the light impurity branch pipe, so that the air flow rate can be reduced when air enters the light impurity hopper from the light impurity branch pipe; at this time, part of light impurities in the air can be deposited and fall into the second spiral impurity discharging cylinder, so that the light impurities can be conveniently concentrated.

Further, an air draft device is arranged at one end of the light impurity hopper, which is far away from the light impurity branch pipe.

Through adopting above-mentioned technical scheme, updraft ventilator can increase the air velocity to can improve third edulcoration device and to the removal effect of light miscellaneous.

Further, the exhaust device is connected with an exhaust pipe, and the exhaust pipe is connected with the side wall of the grain cleaning calandria, which is provided with an air inlet.

Through adopting above-mentioned technical scheme, updraft ventilator passes through exhaust pipe and clean grain calandria intercommunication, forms closed cycle, on the one hand can improve the removal effect to light miscellaneous, on the other hand can prevent light miscellaneous entering air in, influences air quality.

Further, the exhaust device is connected with the exhaust pipe through a dust removing cloth pipe.

By adopting the technical scheme, the dust removing cloth pipe plays a role in ventilation on one hand, and forms closed cycle; on the other hand, the filter effect can be achieved on light impurities in the air, so that the light impurities are prevented from entering the air, and the air quality is prevented from being influenced.

In summary, the invention has the following beneficial effects:

1. the first heavy impurity removing device, the second heavy impurity removing device and the third heavy impurity removing device are adopted, so that various impurities in grains can be effectively removed, and the purity of the grains is improved;

2. an air draft device is adopted, so that the effect of removing light impurities in grains can be improved;

3. the dust removing cloth pipe and the exhaust pipe are adopted, so that the effect of removing light impurities in grains can be improved, and the air quality can be improved.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a multiple combined impurity removal system according to an embodiment;

FIG. 2 is an enlarged schematic view of portion A of FIG. 1;

FIG. 3 is a schematic diagram of a partial structure of a multiple combination impurity removal system according to an embodiment;

FIG. 4 is a schematic top view of a multiple combined impurity removal system according to an embodiment;

FIG. 5 is a schematic view showing an expanded structure of a substrate in an embodiment;

FIG. 6 is a schematic diagram of the structure of a separation helix in the embodiment;

FIG. 7 is an enlarged schematic view of portion B of FIG. 6;

fig. 8 is a schematic view showing a partial structure of a separation helix in the embodiment.

In the figure: 1. a first frame; 2. a feeding device; 21. a feed hopper; 22. a material homogenizing device; 3. a first heavy impurity removal device; 31. a impurity removal screen drum; 311. a substrate; 3111. a first screen area; 3112. a second screen area; 3113. a third screen area; 3114. a fourth screen area; 32. separating the spiral; 321. a screw rod; 322. a helical blade; 3221. a first material homogenizing plate; 3222. a second material homogenizing plate; 3223. a flexible scraper; 3224. a spiral flexible sheet; 33. a trash discharging pipe; 34. a first spiral impurity removing cylinder; 341. a first impurity removing branch pipe; 35. a cover plate; 351. a second viewing window; 4. a second impurity removing device; 41. fine impurity sieve plates; 42. a fine impurity hopper; 5. a third impurity removing device; 51. a light impurity branch pipe; 52. a grain cleaning calandria; 521. an air inlet hole; 53. a light impurity hopper; 531. a first viewing window; 54. a second spiral impurity discharging cylinder; 541. a second impurity removing branch pipe; 55. a material guide plate; 551. a second branch hole; 56. a material guide support plate; 6. an air draft device; 61. a light impurity deposition box; 611. a first door panel; 612. a first branch pipe; 613. a second branch pipe; 62. a first light sundry support; 621. a third branch pipe; 63. a second light sundry support; 631. a fourth branch pipe; 64. a light impurity collecting box; 641. a second door panel; 65. an axial flow fan; 651. a fifth branch pipe; 652. a sixth branch pipe; 66. an exhaust pipe; 68. a second frame; 7. a discharge hopper; 71. a first branch hole.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The present embodiment is only for explanation of the present invention and is not to be construed as limiting the present invention, and modifications to the present embodiment, which may not creatively contribute to the present invention as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present invention.

Examples:

referring to fig. 1, a multiple combined impurity removal system comprises a first frame 1, wherein a first heavy impurity removal device 3 for removing large impurities is arranged on the first frame 1, and a feeding device 2 is arranged on the first heavy impurity removal device 3; a discharge hopper 7 connected with the first frame 1 is arranged below the first heavy impurity removing device 3, and a second heavy impurity removing device 4 for removing fine impurities and a third heavy impurity removing device 5 for removing light impurities are arranged on the discharge hopper 7.

Referring to fig. 1, the first heavy impurity removing device 3 includes a plurality of impurity removing sieve drums 31, and the number of impurity removing sieve drums 31 in the present embodiment is five; the feeding device 2 comprises a feeding hopper 21, a material homogenizing device 22 is arranged below the feeding hopper 21, and the material homogenizing device 22 is simultaneously connected with five impurity removal screen drums 31 and is positioned at the end parts of the impurity removal screen drums 31; the top wall of the impurity removal screen drum 31 in the embodiment is provided with the cover plate 35, so that light impurities in grains can be prevented from entering the air, and the air quality is prevented from being influenced.

Referring to fig. 1, a separation screw 32 is provided in a impurity removal sieve drum 31, and an impurity removal pipe 33 is provided at one end of the bottom wall of the impurity removal sieve drum 31 away from the feeding device 2; a first spiral impurity discharging cylinder 34 connected with the first frame 1 is arranged below the impurity discharging pipe 33.

Referring to fig. 1, the second impurity re-removing unit 4 includes a fine impurity screen 41, and a fine impurity hopper 42 connected to the fine impurity screen 41; the fine impurity sieve plate 41 is connected with the side wall of the discharge hopper 7 close to the feeding device 2, and the fine impurity sieve plate 41 is embedded in the discharge hopper 7; fine impurities in the grains can pass through the fine impurity screen 41 into the fine impurity hopper 42, and the grains cannot pass through the fine impurity screen 41.

Referring to fig. 1, the third impurity-removing device 5 includes a light impurity branch pipe 51, and the light impurity branch pipe 51 is connected with a side wall of the discharge hopper 7 away from the feeding device 2; the light impurity branch pipe 51 is connected with a light impurity hopper 53, and a second spiral impurity discharging cylinder 54 is arranged below the light impurity hopper 53; in this embodiment, the light impurity hopper 53 is provided with the first observation window 531, so that the situation in the light impurity hopper 53 can be observed conveniently.

Referring to fig. 1, an air extracting device 6 is connected to one end of the light impurity hopper 53 away from the light impurity branch pipe 51; the air draft device 6 comprises a light impurity deposition box 61 connected with a light impurity hopper 53, and a first door plate 611 which can be conveniently opened or closed is arranged at the bottom of the light impurity deposition box 61; after the air containing the light impurities enters the light impurity depositing box 61, the air flow rate is reduced, and a part of the light impurities falls into the light impurity depositing box 61.

Referring to fig. 1, two first branch pipes 612 and two second branch pipes 613 are symmetrically provided on the light impurity deposition box 61, respectively; the first branch pipe 612 is connected to the third branch pipe 621, and the second branch pipe 613 is connected to the fourth branch pipe 631; one end of the third branch pipe 621 is connected with a first light sundry branch bucket 62, and the other end is connected with a fifth branch pipe 651; one end of the fourth branch pipe 631 is connected to the second light sundry branch hopper 63, and the other end is connected to the fifth branch pipe 651.

Referring to fig. 1, a light impurity collecting box 64 is arranged at the bottom of the first light impurity bucket 62 and the second light impurity bucket 63; the light impurity collecting box 64 is provided on the second frame 68, and a second door 641 which can be opened or closed is provided on the light impurity collecting box 64; the fifth branch pipe 651 is connected to an axial flow fan 65.

Referring to fig. 2, a light sundry branch pipe 51 and the bottom of the discharge hopper 7 are provided with a clean grain discharge pipe 52; the side wall of the grain cleaning calandria 52 far away from the light impurity branch pipe 51 is uniformly provided with a plurality of air inlets 521, and the side wall of the grain cleaning calandria 52 provided with the air inlets 521 is communicated with an exhaust pipe 66; the exhaust duct 66 is connected to the axial flow fan 65 (refer to fig. 1) through a dust removing cloth duct (not shown in the drawing), and the exhaust duct 66 passes through the fine impurity hopper 42 (refer to fig. 1) in the present embodiment.

Referring to fig. 2, in this embodiment, a plurality of first support holes 71 are uniformly formed on the side wall of the discharge hopper 7 connected with the light impurity support pipe 51, so that light impurities can pass through the first support holes 71, but grains cannot pass through the first support holes; the light sundry branch pipe 51 is connected with a material guide plate 55 positioned in the grain cleaning calandria 52, and a plurality of second branch holes 551 are uniformly distributed on the material guide plate 55; light impurities can pass through the second branch holes 551, and grains cannot pass through the second branch holes 551; in the embodiment, the outlet of the discharging hopper 7 is opposite to the material guiding plate 55, and a material guiding support plate 56 matched with the material guiding plate 55 is arranged in the grain cleaning discharging pipe 52; the material guide plate 55 and the material guide support plate 56 can change the flow direction of grains and reduce the flow speed of grains, so that light impurities in the grains can be fully blown into the light impurity support pipe 51.

Referring to fig. 3, a first impurity discharging branch pipe 341 is connected to the first spiral impurity discharging cylinder 34, and a second impurity discharging branch pipe 541 offset from the first impurity discharging branch pipe 341 is connected to the second spiral impurity discharging cylinder 54.

Referring to fig. 4, five second observation windows 351 corresponding to the separation screw 32 are uniformly provided on the cover plate 35, so that the grain and large impurities can be conveniently observed; the axial flow fan 65 in this embodiment is connected to a dust collection cloth pipe (not shown in this drawing) through a sixth branch pipe 652.

Referring to fig. 5, the substrate 311 is rectangular after being unfolded and is U-shaped before being unfolded; the first, second, third and fourth mesh areas 3111, 3112, 3113 and 3114 are provided on the base plate 311 in this order along the direction from the feeder 2 (see fig. 1) to the impurity discharging pipe 33 (see fig. 1).

Referring to fig. 5, a plurality of first holes are uniformly arranged in the first hole area 3111, a plurality of second holes are uniformly arranged in the second hole area 3112, a plurality of third holes are uniformly arranged in the third hole area 3113, and a plurality of fourth holes are uniformly arranged in the fourth hole area 3114; in this embodiment, the apertures of the first, second, third and fourth sieve pores become smaller gradually, and grains can pass through the first, second, third and fourth sieve pores, but large impurities cannot pass through.

Referring to fig. 5, after the substrate 311 is unfolded, the first, second and fourth open areas 3111, 3112 and 3114 are rectangular, and the sides of the junction between the first and second open areas 3111 and 3112 are substantially the same; the third mesh space 3113 includes two portions, and a portion joined to the second mesh space 3112 is rectangular, and a portion joined to the fourth mesh space 3114 is trapezoidal; the side length of the engagement portion of the third 3113 and the second 3112 is substantially the same, the side length of the engagement portion of the third 3113 and the fourth 3114 is substantially the same, and the side of the engagement portion of the third 3113 and the fourth 3114 is the upper bottom of the trapezoid portion in the third 3113.

Referring to fig. 6, the separation screw 32 includes a screw rod 321, and a screw blade 322 is provided on the screw rod 321; in this embodiment, the spiral blade 322 is not in contact with the inner wall of the substrate 311 (see fig. 5); a plurality of first material homogenizing plates 3221 are uniformly arranged at one end of the spiral blade 322 close to the feeding device 2 (refer to fig. 1), and the number of the first material homogenizing plates 3221 in the embodiment is seven; the first material homogenizing plate 3221 can uniformly divide grains, and then can conveniently filter large impurities in the grains.

Referring to fig. 6, in the present embodiment, the pitch of the helical blade 322 is unevenly disposed, wherein the helical blade 322 is evenly disposed near the feeding device 2 (refer to fig. 1), and the rest is gradually increased along the direction from the feeding device 2 (refer to fig. 1) to the impurity discharging tube 33 (refer to fig. 1).

Referring to fig. 7, a plurality of second material homogenizing plates 3222 are disposed on the spiral blade 322, and in this embodiment, the number of the second material homogenizing plates 3222 is three and is connected to the first material homogenizing plates 3221; in this embodiment, the long side of the second material homogenizing plate 3222 is perpendicular to the long side of the first material homogenizing plate 3221; the spiral blade 322 is provided with a spiral flexible piece 3224, and the spiral flexible piece 3224 is preferably made of abrasion-resistant rubber and can contact with the inner wall of the base plate 311 (see fig. 5).

Referring to fig. 8, a flexible blade 3223 is provided on the second balancing plate 3222, and the flexible blade 3223 is preferably made of wear-resistant rubber and is capable of contacting the inner wall of the base plate 311 (refer to fig. 5).

The working principle is as follows:

grain enters from a feed hopper 21, and the grain is uniformly distributed into five impurity removal sieve cylinders 31 by a material homogenizing device 22;

the grains enter the discharge hopper 7 through the impurity removal screen drum 31, and large impurities in the grains fall into the first spiral impurity removal drum 34 through the impurity removal pipe 33 and are discharged through the first impurity removal branch pipe 341;

when grains fall into the discharge hopper 7, the grains are contacted with the fine impurity sieve plate 41, the grains continue to flow along the fine impurity sieve plate 41, and fine impurities in the grains pass through the fine impurity sieve plate 41 and enter the fine impurity hopper 42;

the grains in the discharge hopper 7 fall into the clean grain discharge pipe 52 and are discharged; air enters the grain cleaning calandria 52 from the air inlet 521 and the air exhaust pipe 66, and light impurities in the grains are blown into the light impurity branch pipe 51;

some light impurities are deposited when entering the light impurity hopper 53, some are deposited when entering the light impurity deposition box 61, some are deposited when entering the first light impurity hopper 62 and the second light impurity hopper 63, and some are deposited when entering the dust removing pipe arrangement, so that the light impurities can be prevented from entering the air, and the air quality is prevented from being influenced;

the axial flow fan 65 is connected with the exhaust pipe 66 through the sixth branch pipe 652 and the dust removing cloth pipe, so that closed circulation can be formed, energy conservation and environmental protection can be realized, and the light impurity removal effect can be improved;

the grains discharged through the grain cleaning calandria 52 are removed with large, fine and light impurities, so that the purity of the grains can be improved.

Claims

1. A multiple combination edulcoration system, its characterized in that: the device comprises a feeding device (2), wherein a first heavy impurity removing device (3) for removing large impurities is arranged below the feeding device (2); a discharge hopper (7) is arranged below the first heavy impurity removal device (3), and a second heavy impurity removal device (4) for removing fine impurities and a third heavy impurity removal device (5) for removing light impurities are arranged on the discharge hopper (7); the first heavy impurity removal device (3) comprises a plurality of impurity removal screen drums (31) positioned above the discharge hopper (7), and separation spirals (32) are arranged in the impurity removal screen drums (31); one end of the impurity removal screen cylinder (31) is connected with the feeding device (2), and the bottom wall of the other end is provided with an impurity removal pipe (33); a first spiral impurity discharging cylinder (34) is arranged below the impurity discharging pipe (33); the impurity removal screen cylinder (31) comprises a base plate (311), wherein a first screen hole area (3111), a second screen hole area (3112), a third screen hole area (3113) and a fourth screen hole area (3114) with gradually smaller apertures are sequentially arranged on the base plate (311) along the direction from the feeding device (2) to the impurity removal pipe (33); the second impurity removing device (4) comprises a fine impurity sieve plate (41) and a fine impurity hopper (42) connected with the fine impurity sieve plate (41), and the fine impurity sieve plate (41) is connected with the side wall of the discharge hopper (7) close to the feeding device (2); the third impurity-removing device (5) comprises a light impurity branch pipe (51), and the light impurity branch pipe (51) is connected with the side wall of the discharge hopper (7) far away from the feeding device (2); the light sundries branch pipe (51) is communicated with the lower part of the discharging hopper (7) and is provided with a grain cleaning calandria (52), and the side wall of the grain cleaning calandria (52) far away from the light sundries branch pipe (51) is provided with a plurality of air inlets (521).

2. The multiple combination impurity removal system of claim 1, wherein: the feeding device (2) comprises a feeding hopper (21), and a material homogenizing device (22) connected with a plurality of impurity removal screen drums (31) is arranged below the feeding hopper (21).

3. The multiple combination impurity removal system of claim 1, wherein: one end of the light impurity branch pipe (51) far away from the grain cleaning calandria (52) is provided with a light impurity hopper (53), and the bottom of the light impurity hopper (53) is provided with a second spiral impurity discharging cylinder (54).

4. The multiple combination impurity removal system of claim 3, wherein: and an air draft device (6) is arranged at one end of the light impurity hopper (53) far away from the light impurity branch pipe (51).

5. The multiple combination impurity removal system of claim 4, wherein: the exhaust device (6) is connected with an exhaust pipe (66), and the exhaust pipe (66) is connected with the side wall of the grain cleaning calandria (52) provided with an air inlet hole (521).

6. The multiple combination impurity removal system of claim 5, wherein: the air draft device (6) is connected with the exhaust pipe (66) through a dust removing cloth pipe.