CN214975759U

CN214975759U - Winnowing equipment

Info

Publication number: CN214975759U
Application number: CN202023138247.XU
Authority: CN
Inventors: 刘俊祥; 孔庆锋; 曹春峰; 刘强
Original assignee: Beijing Nexcin Environment Technology Co ltd
Current assignee: Beijing Nexcin Environment Technology Co ltd
Priority date: 2020-12-22
Filing date: 2020-12-22
Publication date: 2021-12-03
Anticipated expiration: 2030-12-22

Abstract

A winnowing device belongs to the technical field of sorting devices. Comprises a shell, which is provided with an air inlet part; the screening device is positioned in the shell, and an annular air separation channel for the object to be air separated to pass through is formed between the screening device and the shell; the annular air separation channel is arranged in the air inlet part, and the air inlet part is arranged at the position of the annular air separation channel. The utility model provides a treat selection by winnowing thing is through removing in annular selection by winnowing passageway to the center gathering of device is in order to filter through the sieving mechanism, and consequently it need not have the great space among the prior art in order to be used for treating the landing point that selection by winnowing thing atress flight and realization different materials correspond, consequently the utility model discloses it is littleer for the winnowing equipment area among the prior art.

Description

Winnowing equipment

Technical Field

The utility model relates to a sorting equipment technical field, concretely relates to winnowing equipment.

Background

The winnowing method is a method for removing impurities by wind power by utilizing the difference of suspension speeds between materials and impurities, is suitable for separating solid wastes with similar particle shapes and sizes, and can be used for removing light impurities and dust and removing part of heavier impurities such as stones and soil blocks after crushing and screening.

The existing winnowing equipment has two types, one type is that the winnowing equipment is arranged to provide wind power in a fixed direction for an object to be winnowed, so that the object to be winnowed flies in the air under stress, and the object to be winnowed and impurities fall at positions with different distances due to different mass and suspension speed of the object to be winnowed and the impurities, so that the separation is realized; the other way is that a winnowing impeller is arranged in the center of the equipment, and airflow is driven to generate centrifugal force through the rotation of the winnowing impeller, so that objects to be winnowed which are input from the top of the equipment are thrown out to the periphery, and the objects to be winnowed fly for a certain distance in the air under stress, and because the mass and the suspension speed of the materials and the impurities in the objects to be winnowed are different, the throwing distances of the materials and the impurities are different, and therefore, the separation is realized; therefore, the two modes are realized by enabling the object to be separated to fly for a certain distance under stress and realizing separation by different moving distances of the object and the impurities under stress. Therefore, the two modes need to have larger space so as to facilitate the object to be winnowed to fly under stress and realize that different substances have corresponding drop points, and the winnowing equipment in the prior art has the problem of larger occupied area.

SUMMERY OF THE UTILITY MODEL

Therefore, the to-be-solved technical problem of the utility model lies in overcoming the great problem of winnowing equipment area among the prior art to a winnowing equipment is provided.

The utility model provides a following technical scheme:

an air classification apparatus comprising:

a housing provided with an air inlet portion;

the screening device is positioned in the shell, and an annular air separation channel for the object to be air separated to pass through is formed between the screening device and the shell;

the annular air separation channel is arranged in the air inlet part, and the air inlet part is arranged at the position of the annular air separation channel.

Optionally, the screening device comprises:

the screen is a cylindrical structure arranged in the shell, and the annular air separation channel is formed between the screen and the shell.

Optionally, the screening apparatus further comprises:

and the cyclone dust collector is positioned in the inner cavity of the cylindrical screen.

Optionally, the air inlet of the cyclone is arranged towards the screen; and the air inlet extends in a tangential direction of the screen.

Optionally, the number of the cyclone dust collectors is plural, and the plural cyclone dust collectors are arranged along the peripheral wall of the screen.

Optionally, the screening apparatus further comprises:

the cover body is arranged at the air outlet part of the shell, and a through hole is formed in the cover body.

Optionally, the screening apparatus further comprises:

and the dust collection box is communicated with the dust outlet of the cyclone dust collector.

Optionally, the screening apparatus further comprises:

and the stopper is arranged in the annular air separation channel and used for stopping the air separation object below the stopper from moving upwards.

Optionally, the stopper is disposed at a lower end of the screen and extends toward the bottom of the housing to form a trumpet shape.

Optionally, the air outlet portion of the housing is connected with the air pump through an air suction pipeline.

Optionally, the air outlet portion is connected with the air suction pipeline through an air suction cavity, and the sectional area of the air suction cavity is between the shell and the air suction pipeline.

The utility model discloses technical scheme has following advantage:

1. the utility model provides a winnowing device, which comprises a shell and a wind inlet part, wherein the shell is provided with a wind inlet part; the screening device is positioned in the shell, and an annular air separation channel for the object to be air separated to pass through is formed between the screening device and the shell; the annular air separation channel is arranged in the air inlet part, and the air inlet part is arranged at the position of the annular air separation channel.

The utility model arranges the guiding piece at the air inlet part in the annular winnowing channel, so that the object to be winnowed and the air entering the shell from the air inlet part are guided by the guiding piece and then move along the annular winnowing channel, in the process, the heavier part of the object to be winnowed falls on the bottom of the annular winnowing channel, and when wind moves, the object to be winnowed is driven to move towards the screening device because of the obstruction of the guide piece positioned in the front of the moving direction, thereby screening by the screening device, compared with the prior art that the wind power equipment is arranged to provide wind power with fixed direction for the object to be winnowed to carry out winnowing, and the object to be winnowed is driven by the centrifugal force of the air flow to be thrown out to the periphery for winnowing, the object to be winnowed does not need to fly outwards for a certain distance in a certain fixed direction or in a diffusion way, and the separation is carried out by different forced moving distances of the materials and the impurities in the prior art. But through removing in annular selection by winnowing passageway to the center gathering of device is in order to filter through the sieving mechanism, and consequently it need not have the great space among the prior art in order to be used for treating the landing point that selection by winnowing thing atress flight and realization different materials correspond, consequently the utility model discloses it is littleer for the air classification equipment area among the prior art.

2. The utility model provides a winnowing equipment, the sieving mechanism includes the screen cloth, is setting up tubular structure in the casing, the screen cloth with form between the casing annular selection by winnowing passageway.

The utility model discloses set up the screen cloth and treat the selection by winnowing thing and filter, when making and treat that the selection by winnowing thing receives the drive of wind and remove to the device center, at first through the screen cloth, with the great material interception of volume in annular selection by winnowing passageway.

3. The utility model provides a winnowing equipment, the sieving mechanism still includes cyclone, is located the tube-shape in its inner chamber of screen cloth.

The utility model discloses a set up cyclone and remove dust to wind, for prior art, the utility model discloses can not produce the raise dust and then avoid air pollution, thereby this cyclone can produce the negative pressure in screen cloth inner chamber in addition and improve screening efficiency.

4. In the winnowing device provided by the utility model, the air inlet of the cyclone dust collector is arranged towards the screen; and the air inlet extends in a tangential direction of the screen.

The utility model discloses a cyclone's air inlet sets up towards the screen cloth to the tangential direction along the screen cloth extends, is favorable to wind to directly get into cyclone along the direction of motion, thereby can not cause the hindrance to improve screening efficiency effectively.

5. The utility model provides a winnowing equipment, cyclone's quantity is a plurality of, and is a plurality of cyclone follows the periphery wall of screen cloth is arranged.

The cyclone dust collectors are arranged in a plurality of numbers and are arranged along the peripheral wall of the screen, compared with the cyclone dust collector which is only provided with one cyclone dust collector, the utility model requires smaller wind power and smaller air quantity, and can avoid bringing larger-particle materials into the cyclone dust collectors due to overlarge wind power and air quantity; in addition, compared with the case that only one cyclone dust collector is arranged, the dust collection effect is better.

6. The utility model provides a winnowing equipment, the sieving mechanism still includes the lid, sets up the play wind position of casing, be equipped with the through-hole on the lid.

The utility model discloses a lid can prevent that the dust collected by cyclone from receiving wind-force to drive, takes out sieving mechanism from cyclone's space each other, avoids causing the raise dust.

7. The utility model provides a winnowing equipment, the sieving mechanism still includes keeps off the piece, sets up in the annular selection by winnowing passageway for block to be located keep off the selection by winnowing thing of piece below and go upward.

The utility model discloses set up in annular selection by winnowing passageway and keep off the piece for block to be located to keep off the selection by winnowing thing of piece below and go upward, avoid it to go upward to participate in once more through the screening that the sieving mechanism goes on, effectively alleviate the screening pressure of sieving mechanism, be favorable to promoting the screening effect of sieving mechanism.

8. The utility model provides a winnowing equipment, the air-out portion of casing passes through the air suction pipeline and links to each other with the air pump.

The utility model discloses a set up air suction pipeline and air pump, provide power through the removal of suction to the interior wind of casing, the wind of being convenient for drives and treats the selection by winnowing thing and remove to the sieving mechanism.

9. The utility model provides a winnowing equipment, air-out portion through induced draft the cavity with the pipeline that induced drafts links to each other, the sectional area of the cavity that induced drafts in the casing with between the pipeline that induced drafts.

The utility model discloses set up the cavity that induced drafts and adjust out the wind-force and the amount of wind portion, prevent that the wind-force and the amount of wind portion are too big, and then take the dust out of sieving mechanism, avoid causing the raise dust, the sectional area of the cavity that induced drafts is less than the casing and is to avoid it directly to absorb the selection by winnowing thing of treating in the annular selection by winnowing passageway, prevents to treat that the selection by winnowing thing directly discharges this equipment without the selection by winnowing.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention;

fig. 2 is a top view of the housing and the screening device in embodiment 1 of the present invention;

fig. 3 is a schematic view of a part of the structure of the screening device in embodiment 1 of the present invention.

Description of reference numerals:

1. a housing; 2. an air inlet part; 3. an air outlet part; 4. a screening device; 5. screening a screen; 6. a stopper; 7. a cyclone dust collector; 8. a guide member; 9. a barrel; 10. a cone; 11. a dust outlet; 12. an air outlet cylinder; 13. an air inlet; 14. a cover body; 15. a dust collection box; 16. a fixing plate; 17. an air suction chamber; 18. an air intake pipeline; 19. an air pump; 20. an air outlet; 21. an annular air separation channel.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

The present embodiment provides a winnowing apparatus, as shown in fig. 1-3, comprising a housing 1, which is provided with an air inlet portion 2 and an air outlet portion 3, the air inlet portion 2 is disposed on a side wall of the housing 1, the air inlet portion 2 of the present embodiment is an air inlet channel, the air outlet portion 3 of the present embodiment is disposed on a top of the housing 1, the air outlet portion 3 of the present embodiment is an air outlet, an air suction chamber 17 communicated with the air outlet portion 3 is disposed above the air outlet portion 3, the air suction chamber 17 is connected to an air pump 19 through an air suction pipeline 18, a cross-sectional area of the air suction chamber 17 is between the housing 1 and the air suction pipeline 18, a cross-sectional area of the air suction chamber 17 of the present embodiment is the same as that of the air inlet portion 2, air in the housing 1 is extracted by the air pump 19, external air is supplemented into the housing 1 from the air inlet portion 2 to form air for driving an object to be winnowed to move, the air extracted by the air pump 19 is discharged from the air outlet 20, the object to be winnowed is also put into the housing 1 through the air inlet portion 2, the air pump 19 of the present embodiment is a high-pressure vortex air pump.

Sieving mechanism 4 is located casing 1 to correspond 3 positions in the air-out portion, sieving mechanism 4 includes screen cloth 5, and screen cloth 5 is the tubular structure who sets up in casing 1, forms the annular selection by winnowing passageway 21 that supplies to wait to select by winnowing thing to pass through between screen cloth 5 and the casing 1, and screen cloth 5 lower extreme is provided with and is located annular selection by winnowing passageway 21 and keeps off piece 6, keeps off piece 6 and extends in order to form loudspeaker form towards casing 1 bottom for it goes upward to block to be located the selection by winnowing thing that keeps off piece 6 below. The screening device 4 further comprises a plurality of cyclone dust collectors 7 connected through a fixing plate 16, the plurality of cyclone dust collectors 7 are all located in the inner cavity of the cylindrical screen 5 and are arranged along the peripheral wall of the screen 5, the cyclone dust collectors 7 of the embodiment comprise a cylinder 9 and a cone 10 which are connected, the cylinder 9 is provided with an air inlet 13, the air inlet 13 is arranged towards the screen 5 and extends along the tangential direction of the screen 5, the side with the larger inner diameter of the cone 10 is connected with the bottom of the cylinder 9, the side with the smaller inner diameter of the cone 10 is provided with a dust outlet 11, the cyclone dust collectors 7 further comprise an air outlet cylinder 12, the air outlet cylinder 12 extends into a dust removing space formed by the cylinder 9 and the cone 10 from the top of the cylinder 9, a cover body 14 is arranged at the top of the plurality of cyclone dust collectors 7, the cover body 14 is located at the air outlet part 3, a through hole matched with the air outlet cylinder 12 is arranged on the cover body 14, a dust collecting box 15 is further arranged at the bottom of the plurality of the cyclone dust collectors 7, which is communicated with the dust outlets 11 of the plurality of cyclones 7 for collecting the substances discharged from the cyclones 7.

The guide 8, set up in annular selection by winnowing passageway 21, and be located the portion 2 position of admitting air, guide 8 sets up along the slope of an orientation of annular selection by winnowing passageway 21, be used for guiding the wind that gets into from the portion 2 of admitting air to flow along this direction, and make wind drive the thing of waiting to winnowing and get into sieving mechanism 4 through hindering simultaneously, guide 8 of this embodiment is the deflector that links to each other with casing 1 top, and the both ends of deflector link to each other with casing 1's inner wall and screen cloth 5 respectively, in other embodiments, there is the gap between the tip of deflector and corresponding casing 1 inner wall and screen cloth 5.

The winnowing equipment of this embodiment is applicable to and carries out the selection by winnowing to building rubbish, compares and need the water to remove dust when carrying out the selection by winnowing to building rubbish among the prior art, and the dust removal effect can directly be realized to this embodiment at the selection by winnowing in-process, saves the water resource, avoids causing water pollution.

When in use, the air pump 19 is started to form air flow which can drive the object to be winnowed to move in the shell 1, the object to be winnowed is put into the shell 1 from the air inlet part 2, the object to be winnowed moves in the annular winnowed channel 21 under the action of the guide piece 8 and the air flow, in the moving process, heavier materials fall on the bottom of the shell 1 and cannot go upwards under the blocking action of the blocking piece 6, meanwhile, in the moving process, the object to be winnowed is driven to move to the screening device 4 because the air flow is blocked by the guide piece 8 positioned in front of the moving direction, the materials with larger particles are screened by the screen 5 and are left in the annular winnowed channel 21, the materials with smaller particles and dust pass through the screen 5 and then enter the cyclone dust collector 7 and finally fall in the dust collecting box 15, the air in the shell 1 is discharged from the air outlet 20 by the air pump 19 through the air outlet cylinder 12, and the discharged gas can not cause dust raising.

For the mode of providing the wind-force of fixed direction with carrying out the selection by winnowing among the prior art through setting up wind power equipment to treating the selection by winnowing thing, and the centrifugal force through the air current drives and treats that the selection by winnowing thing throws out in order to carry out the selection by winnowing to all around, the selection by winnowing thing of treating of this embodiment need not outwards fly a section distance to certain fixed direction or with the mode of diffusion, and the distance that moves through material and impurity atress is different in order to select separately, but through removing in annular selection by winnowing passageway 21, and gather in order to filter through sieving mechanism 4 to the center of device, consequently it need not have the great space among the prior art in order to be used for treating that the selection by winnowing thing atress flies and realize the drop that different materials correspond, consequently area is littleer for the selection by winnowing equipment among the prior art.

The utility model discloses do not specifically prescribe a limit to the component part of sieving mechanism 4, in other embodiments, sieving mechanism 4 is the collection storehouse of setting at the central position of its inner ring of annular selection by winnowing passageway 21, and its air outlet setting of annular selection by winnowing passageway 21 is on this collection storehouse. And the collecting bin is provided with a communicating hole for communicating the collecting bin with the annular winnowing channel 21.

The material flows in annular selection by winnowing passageway 21, because the air outlet sets up on collecting the storehouse, so can produce the appeal to the interior object of annular selection by winnowing passageway 21, the material can get into through above-mentioned intercommunicating pore and collect the storehouse. Because the diameter of above-mentioned intercommunicating pore is the definite value, the great material of volume can the separation in annular selection by winnowing passageway 21, and the less material of volume can get into the collection storehouse through the intercommunicating pore to realize selecting separately the process.

The utility model discloses do not specifically prescribe a limit to the concrete structure of guide 8, in other embodiments, guide 8 is plastic film or cloth, through the 2 positions of the portion of intaking of support setting in annular selection by winnowing passageway 21 for the guide flows along this direction from the wind that portion of intaking 2 got into, and drives through hindering simultaneously and treat that the selection by winnowing thing gets into sieving mechanism 4.

The utility model discloses do not specifically limit to the concrete structure of casing 1, in other embodiments, casing 1 bottom opening, the material that falls from annular selection by winnowing passageway 21 can directly be followed opening part discharge casing 1.

The utility model discloses do not specifically limit to cyclone 7's quantity, in other embodiments, cyclone 7 also can only set up one, and this cyclone 7's air inlet 13 sets up towards guide 8, and when only setting up a cyclone 7, makes cyclone 7's barrel 9 top directly set up in air-out portion 3 department, consequently can no longer set up lid 14.

The utility model discloses do not specifically limit to the component part of winnowing equipment, in other embodiments, it only has casing 1, sieving mechanism 4 and guide 8, through let in the air current and treat the screening thing in order to carry out the selection by winnowing in the portion of admitting air 2.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims

1. An air classification apparatus, comprising:

a housing (1) provided with an air inlet part (2);

the screening device (4) is positioned in the shell (1), and an annular air separation channel (21) for allowing objects to be air-separated to pass is formed between the screening device (4) and the shell (1);

the guide piece (8) is arranged in the annular air separation channel (21) and is positioned at the air inlet part (2), and the guide piece (8) is obliquely arranged along one direction of the annular air separation channel (21) and is used for guiding the air entering from the air inlet part (2) to flow along the direction.

2. An air classification apparatus according to claim 1, characterised in that the screening device (4) comprises:

the air separation device comprises a screen (5) which is a cylindrical structure arranged in the shell (1), wherein an annular air separation channel (21) is formed between the screen (5) and the shell (1).

3. An air classification apparatus according to claim 2, characterised in that the screening device (4) further comprises:

and the cyclone dust collector (7) is positioned in the inner cavity of the cylindrical screen (5).

4. An air classification apparatus according to claim 3, characterised in that the air inlet (13) of the cyclone (7) is arranged towards the screen (5); and the air inlet (13) extends in a tangential direction of the screen (5).

5. The winnowing device according to claim 4, characterized in that the number of the cyclones (7) is plural and a plurality of the cyclones (7) are arranged along the peripheral wall of the screen (5).

6. An air classification apparatus according to claim 5, characterised in that the screening device (4) further comprises:

the cover body (14) is arranged at the position of the air outlet part (3) of the shell (1), and a through hole is formed in the cover body (14).

7. An air classification apparatus according to any one of claims 3-6, characterised in that the screening device (4) further comprises:

and the dust collection box (15) is communicated with the dust outlet (11) of the cyclone dust collector (7).

8. An air classification apparatus according to any one of claims 2-6, characterised in that the screening device (4) further comprises:

and the stopper (6) is arranged in the annular winnowing channel (21) and is used for stopping winnowing matters positioned below the stopper (6) from ascending.

9. An air classification apparatus according to claim 8, characterized in that the stopper (6) is arranged at the lower end of the screen (5) and extends towards the bottom of the housing (1) to form a trumpet.

10. Winnowing device according to any one of claims 1 to 6, characterized in that the air outlet (3) of the housing (1) is connected to an air pump (19) via an air suction line (18).

11. The air classification apparatus according to claim 10, characterized in that the air outlet portion (3) is connected to the air suction duct (18) by a suction chamber (17), the cross-sectional area of the suction chamber (17) being between the housing (1) and the air suction duct (18).