CN216150387U - Combined air-screen classificator - Google Patents

Combined air-screen classificator Download PDF

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Publication number
CN216150387U
CN216150387U CN202122215894.4U CN202122215894U CN216150387U CN 216150387 U CN216150387 U CN 216150387U CN 202122215894 U CN202122215894 U CN 202122215894U CN 216150387 U CN216150387 U CN 216150387U
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Prior art keywords
air screen
screen
air
combined air
plate
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CN202122215894.4U
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Chinese (zh)
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张国红
邢建平
王健
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Shijiazhuang Sanli Grain Machinery Co ltd
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Shijiazhuang Sanli Grain Machinery Co ltd
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Abstract

The utility model relates to a combined air screen classificator, which comprises a rack, a lifting machine arranged on the rack, a combined air screen communicated with the upper discharge end of the lifting machine, and a specific gravity table arranged below the combined air screen, wherein an air channel of the combined air screen is obliquely arranged; the utility model adopts the combined air screen form of the inclined air duct, the air duct is longer under the condition of ensuring the whole height, and a better winnowing effect can be achieved, or the height of the combined air screen is lower than that of the traditional vertical air screen under the condition of the same air duct length, and the whole height of the equipment can be effectively reduced.

Description

Combined air-screen classificator
Technical Field
The utility model belongs to the field of grain screening equipment, and particularly relates to a combined air-screening and fine-sorting machine.
Background
The air sieves adopted by the classificators on the market are all in a vertical structure, the height of the air sieves is large, after the air sieves are completely assembled, the height of the whole classificators in a transportation state reaches about 3.2m, and the transportation difficulty is high. And when the screening of large output grain, because the grain layer is thick, when carrying out the selection by winnowing dust removal through the wind sieve, dust can be wrapped up in by good material and hold under the palm, and these dust can flow out in following the wind sieve along with the material, and the dust is great when leading to subsequent than reselecting, influences the screening effect. When the problems are solved in the market at present, either a double ratio reselection mode is adopted, or a classifying screen with a negative pressure function is added after air separation, so that the manufacturing cost of the whole machine is undoubtedly increased.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of providing a combined air-screen classificator, which has lower overall height compared with the existing classificator and is convenient to transport.
The technical scheme adopted by the utility model is as follows:
the combined air screen classificator comprises a rack, a lifting machine arranged on the rack, a combined air screen communicated with the upper discharge end of the lifting machine, and a specific gravity table arranged below the combined air screen, wherein an air channel of the combined air screen is obliquely arranged.
Furthermore, the combined air screen comprises an inclined air screen and a front air screen, wherein the inclined air screen is obliquely arranged, the front air screen is arranged on one side of the inclined air screen and communicated with the inclined air screen, holes are formed in the front side and the upper inclined surface of the inclined air screen, the front air screen is arranged on the inclined air screen in a riding mode, holes corresponding to the holes of the inclined air screen are formed in the front air screen, and a feeding hole is formed in the top of the inclined air screen.
Furthermore, a material homogenizing plate is arranged on the lower inclined plane of the inclined air screen, the transverse section of the material homogenizing plate is trapezoidal, and the upper side face of the material homogenizing plate and the incoming direction of the lower inclined plane of the inclined air screen are arranged in an obtuse angle.
Furthermore, an angle adjusting handle is connected to the material homogenizing plate and is installed on the outer side of the lower inclined surface of the inclined air screen.
Furthermore, preceding wind sieve includes the slope section and connects the lower vertical section at the slope section lower extreme, is equipped with the hole that communicates with the oblique wind sieve on the bottom surface of slope section, the side of lower vertical section.
Furthermore, an inner suction dust removal pipe is arranged in the lower vertical section, one end of the inner suction dust removal pipe is communicated with a dust removal device, and an air inlet hole is formed in the other end of the inner suction dust removal pipe.
Furthermore, the inner suction dust removal pipe is buckled on the side wall of the lower vertical section, the dust removal shield comprises a top plate, a vertical plate and a bottom plate, the top plate is obliquely arranged, one end of the vertical plate is connected with the top plate, the bottom plate is connected with the other end of the vertical plate, one ends of the top plate and the bottom plate are connected with the side wall of the lower vertical section, and an inner suction dust removal air pipe air inlet is formed in the bottom plate.
Further, the top plate is arranged obliquely downwards, and the bottom plate is arranged obliquely upwards.
Furthermore, a material baffle plate is arranged in the inner dust absorption and removal pipe, one end of the material baffle plate is connected with the side wall of the lower vertical section, and the other end of the material baffle plate is connected with the bottom plate.
Furthermore, a material conveying groove is arranged between the discharge end of the combined air screen and the specific gravity table, and a rear air screen is arranged at the discharge end of the material conveying groove.
The utility model has the positive effects that: the utility model adopts the combined air screen form of the inclined air duct, the air duct is longer under the condition of ensuring the whole height, and a better winnowing effect can be achieved, or the height of the combined air screen is lower than that of the traditional vertical air screen under the condition of the same air duct length, and the whole height of the equipment can be effectively reduced.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of embodiment 1 of the combined air screen of the present invention;
FIG. 3 is a schematic view of the inclined air screen of the present invention;
FIG. 4 is a schematic diagram of a refining plate structure according to the present invention;
FIG. 5 is a schematic structural view of a front air screen in accordance with example 1 of the present invention;
fig. 6 is a schematic structural view of the combined air screen of the embodiment 2 of the utility model.
Detailed Description
Example 1
As shown in figure 1, the utility model comprises a frame 12, a lifter 13, a spiral dust remover 15, a lifter material conveying pipe 14, a material conveying groove 16, a rear air screen 17, a specific gravity table 18, a grain discharging receiving hopper 19 and a combined air screen.
One end of a material conveying pipe 14 of the elevator is communicated with the upper end of the elevator 13, the lower end of the material conveying pipe is communicated with a material inlet of the combined air screen, materials which are subjected to air separation by the combined air screen fall onto a material conveying groove 16 and then enter a specific gravity table 18 for specific gravity separation, and good materials which are subjected to specific gravity separation flow out of a grain discharging receiving hopper 19. The rear air screen 17 is arranged at the discharge end position of the material conveying groove 16, and the materials are subjected to air separation and dust removal again in the process of falling from the material conveying groove 16 to the specific gravity table 18, so that the dust removal effect is further improved.
As shown in the attached drawings 2-5, the air duct of the combined air screen is obliquely arranged, and specifically comprises an oblique air screen 1 which is obliquely arranged and a front air screen 2 which rides on one side of the oblique air screen 1 and is communicated with the oblique air screen, holes are formed in the front side surface and the upper oblique surface of the oblique air screen 1, holes corresponding to the holes of the oblique air screen are formed in the front air screen 2, a feed inlet 6 is formed in the top of the oblique air screen 1, the feed inlet 6 is communicated with the lower end of a material conveying pipe 14 of a lifting machine, the upper end of the front air screen 2 is communicated with a spiral dust collector and a fan, and an air inlet 5 is formed in the outer side of the oblique air screen.
The inclined air screen 2 is characterized in that a material homogenizing plate 3 is arranged on the lower inclined surface of the inclined air screen 2 and is arranged at an obtuse angle with the incoming direction of the lower inclined surface of the inclined air screen 1, preferably, the transverse section of the material homogenizing plate 3 is trapezoidal, an angle adjusting handle 4 is connected to the material homogenizing plate 3, the angle adjusting handle 4 is installed on the outer side of the lower inclined surface of the inclined air screen 1, and one end of the angle adjusting handle is connected with the material homogenizing plate 3.
As shown in the attached figure 5, the front air screen 2 comprises an inclined section 201, a lower vertical section 202 connected to the lower end of the inclined section, and an upper vertical section 203 connected to the upper end of the inclined section, wherein the upper vertical section 203 is communicated with the spiral dust collector, and the lower vertical section 202 is a discharge port.
Preferably, the connecting plates 8 are arranged on the edges of the upper inclined plane and the front side face of the inclined air screen 1, the lower inclined plane of the inclined air screen 1 is also provided with the lower baffle 7 at the contact position with the lower vertical section 202, the connecting plates 8, the lower baffle 7 and the front air screen 2 are in sealing connection at the corresponding positions, the air leakage of the connecting plates and the lower baffle 7 at the connecting positions is avoided as much as possible, and the screening effect is improved.
Example 2
The embodiment is further improved on the basis of the embodiment 1, as shown in fig. 6, an inner absorption dust removal pipe is added in the lower vertical section 202, one end of the inner absorption dust removal pipe 9 is communicated with a dust removal device, namely a spiral dust remover and a fan, an air inlet 9 is arranged at the other end of the inner absorption dust removal pipe, and an opening is formed in the lower side of the outer wall of the inner absorption dust removal pipe and used for further removing dust of materials entering the lower vertical section 202.
Interior suction dust removal pipe is detained on the lateral wall of vertical section 202 down, including roof 11, the riser that one end and roof 11 are connected that the downward sloping set up and be connected and the bottom plate 10 of tilt up with the riser other end, the one end of roof 11 and bottom plate 10 all is connected with the lateral wall of vertical section 202 down, and it has interior suction dust removal tuber pipe air intake to open on bottom plate 10. Meanwhile, a downward-inclined striker plate 20 is arranged in the inner dust absorption and removal pipe, the striker plate 20 is located at an inclined lower position close to the inside of the inner dust absorption and removal pipe, one end of the striker plate is connected with the side wall of the lower vertical section 202, and the other end of the striker plate is connected with the bottom plate 10.
The inner suction dust removal pipe can remove dust for the second time on the materials in the lower vertical section 202, the top plate 11 which is obliquely arranged can play a role of a bulk material plate, the bulk materials are uniformly distributed on the discharged materials, and material layering is improved. The inner suction dust removal pipe can adopt an independent dust removal air net, so that the dust removal interference with the upper part in the front air screen is reduced. The material baffle 20 can guide the good material sucked into the dust removing shield by mistake, so that the good material falls down from the air inlet of the inner suction dust removing air pipe and is discharged again.
Compared with the existing vertical air screen, the air screen structure provided by the utility model effectively reduces the overall height of the air screen, has the functions of layering bulk materials and removing dust of raw materials, has a good winnowing effect, is more compact due to the adoption of an integrated structure, is small in used air volume, and does not increase the air volume loss of a fan.
Compared with the existing vertical air screen, the air screen structure provided by the utility model effectively reduces the overall height of the air screen, has the functions of layering bulk materials and removing dust of raw materials, has a good winnowing effect, is more compact due to the adoption of an integrated structure, is small in used air volume, and does not increase the air volume loss of a fan.
In actual use, a second specific gravity table can be connected behind the grain discharging receiving hopper 19 for carrying out secondary specific gravity separation on the materials to be used as a seed classificator; or a screening box is connected behind the grain discharging receiving hopper 19 to play a role in selecting commercial grains.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (10)

1. The combined air screen classificator is characterized by comprising a rack (12), a lifting machine (13) arranged on the rack (12), a combined air screen communicated with the upper discharge end of the lifting machine (13) and a specific gravity table (18) arranged below the combined air screen, wherein an air channel of the combined air screen is obliquely arranged.
2. A combined air-screen classificator according to claim 1, characterized in that the combined air screen comprises an inclined air screen (1) which is obliquely arranged and a front air screen (2) which is arranged on one side of the inclined air screen (1) and is communicated with the inclined air screen, holes are formed on the front side and the upper inclined surface of the inclined air screen (1), the front air screen (2) rides on the inclined air screen (1), holes corresponding to the holes of the inclined air screen (1) are formed in the front air screen (2), and a feeding hole (6) is formed at the top of the inclined air screen (1).
3. The combined air screen classificator according to claim 2, characterized in that a material homogenizing plate (3) is arranged on the lower inclined surface of the inclined air screen (1), the transverse section of the material homogenizing plate (3) is trapezoidal, and the upper side surface of the material homogenizing plate and the incoming direction of the lower inclined surface of the inclined air screen (1) form an obtuse angle.
4. A combined air screen concentrator as claimed in claim 3, characterised in that an angle adjustment handle (4) is connected to the spreader plate (3), the angle adjustment handle (4) being mounted on the lower inclined plane outer side of the inclined air screen (1).
5. A combined air screen concentrator according to claim 2, characterized in that the front air screen (2) comprises an inclined section (201) and a lower vertical section (202) connected to the lower end of the inclined section (201), and holes communicated with the inclined air screen (1) are arranged on the bottom surface of the inclined section (201) and the side surface of the lower vertical section (202).
6. The combined air-screen classificator according to claim 5, characterized in that an inner dust absorption and removal pipe is arranged in the lower vertical section (202), one end of the inner dust absorption and removal pipe is communicated with a dust removal device, and the other end of the inner dust absorption and removal pipe is provided with an air inlet hole (9).
7. The combined air screen classificator according to claim 6, wherein the inner dust absorption and removal pipe is fastened on the side wall of the lower vertical section (202), the dust removal shield comprises a top plate (11) which is obliquely arranged, a vertical plate with one end connected with the top plate (11), and a bottom plate (10) connected with the other end of the vertical plate, one ends of the top plate (11) and the bottom plate (10) are connected with the side wall of the lower vertical section (202), and the bottom plate (10) is provided with an inner dust absorption and removal air pipe air inlet.
8. A combined air screen concentrator according to claim 7, characterised in that the top plate (11) is disposed obliquely downwards and the bottom plate (10) is disposed obliquely upwards.
9. A combined air-screen classificator according to claim 7 or 8, characterized in that a striker plate (20) is arranged in the inner dust suction pipe, one end of the striker plate (20) is connected with the side wall of the lower vertical section (202), and the other end is connected with the bottom plate (10).
10. A combined air screen classificator according to claim 1, characterized in that a material conveying chute (16) is provided between the discharge end of the combined air screen and the specific gravity table (18), and a rear air screen (17) is provided at the position of the discharge end of the material conveying chute (16).
CN202122215894.4U 2021-09-14 2021-09-14 Combined air-screen classificator Active CN216150387U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202122215894.4U CN216150387U (en) 2021-09-14 2021-09-14 Combined air-screen classificator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202122215894.4U CN216150387U (en) 2021-09-14 2021-09-14 Combined air-screen classificator

Publications (1)

Publication Number Publication Date
CN216150387U true CN216150387U (en) 2022-04-01

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ID=80849391

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202122215894.4U Active CN216150387U (en) 2021-09-14 2021-09-14 Combined air-screen classificator

Country Status (1)

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CN (1) CN216150387U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116584210A (en) * 2023-07-17 2023-08-15 中国农业大学 Pasture seeding device and method with plasma treatment function

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116584210A (en) * 2023-07-17 2023-08-15 中国农业大学 Pasture seeding device and method with plasma treatment function
CN116584210B (en) * 2023-07-17 2023-09-22 中国农业大学 Pasture seeding device and method with plasma treatment function

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