CN217289300U

CN217289300U - Winnowing machine for materials with different specific gravities

Info

Publication number: CN217289300U
Application number: CN202221185197.7U
Authority: CN
Inventors: 俞伟强
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-05-13
Filing date: 2022-05-13
Publication date: 2022-08-26
Anticipated expiration: 2032-05-13

Abstract

The utility model relates to a winnowing machine for different proportion materials, include: the winnowing cylinder is provided with a first discharge hole and a second discharge hole; the feeding device is arranged at the position of a feeding area of the winnowing cylinder and comprises a material conveying pipe; the first air inlet device is arranged at the position of a feeding area of the air separation cylinder body, and comprises a first air inlet pipe and a first air knife; the second air inlet device is arranged at the position of the low-specific-gravity material discharging area of the air separation cylinder and comprises a second air inlet pipe and a second air knife; the material dispersion device includes: an annular bushing having a seating cavity; the dispersion disc is flatly arranged in the arrangement cavity and is positioned above the first air knife; the wind shield covers the annular bushing and is provided with a material dispersing opening for discharging materials from inside to outside between the wind shield and the top of the annular bushing; the conveying pipeline of the feeding device is connected to the wind shield, and the discharge hole of the conveying pipeline faces the dispersion disc. Has the advantages that: the air separator has simple feeding structure and good material dispersion effect.

Description

Winnowing machine for materials with different specific gravities

Technical Field

The utility model relates to a winnowing machine technical field especially relates to a winnowing machine for different proportion materials.

Background

The existing winnowing technology and equipment mainly comprise a wind power shaking table, a wind power jigging, a wind power chute, a horizontal wind current separator, a Doule pulverizer and the like. Wind power shaking table, wind jigging and wind power chute imitate the loose layering principle in hydraulic ore dressing, air replaces water as the ore dressing medium, and the ascending air current loosens and suspends the raw material bed layer, thereby layering the minerals according to the specific gravity.

For example, the Chinese utility model with application number CN201620538920.3 (grant publication number: CN205851376U) discloses a pneumatic separation device for materials with different specific gravities, which comprises: the air distribution cylinder body, the positive pressure air inlet, the negative pressure air inlet, the first distribution cavity, the first blanking port, the first distribution net belt, the second distribution cavity, the second distribution net belt, the second blanking port, the first distribution motor, the second distribution motor and the feeding device. When the device is used, air flow wind enters the wind distribution cylinder from the positive pressure air inlet, the direction is from bottom to top, the first material distribution net belt and the second material distribution net belt respectively operate under the action of respective driving motors, the first material distribution net belt operates from right to left, a feeding device is arranged at the upper right part of the first material distribution net belt, the feeding device enables materials to fall onto the first material distribution net belt from the feeding device, the materials move forwards leftwards along with the first material distribution net belt and enter a part of the wind distribution cylinder, which is overlapped with the first material distribution cavity, so that the materials are subjected to the action of positive pressure wind from bottom to top in the wind distribution cylinder, the positive pressure wind pressure at the position section is preset and modulated to a required pressure value, the light materials to be screened can be blown up by the positive pressure wind, meanwhile, the heavy materials to be screened cannot be blown up, therefore, when the first material distribution net belt enters the lower end part of the wind distribution cylinder, the light materials to be screened are blown up along with the positive pressure wind, the materials enter the middle section and the upper section of the air separation cylinder body, the remaining materials with the self gravity larger than the positive pressure air pressure are not blown up, still fall on the first material separation mesh belt and are continuously conveyed leftwards along with the first material separation mesh belt until the end is reached, when the first material separation mesh belt turns to turn downwards, the materials fall to the first blanking port, and the materials of the part are collected through the first blanking port; lighter materials flowing upwards along with positive pressure air reach the second material distribution cavity, the materials at the moment are under the action of negative air suction force of a negative pressure air suction opening at the upper end of the air distribution cylinder, the materials continue to move upwards until being intercepted by the lower section net surface of the second material distribution net belt, fine air holes are formed in the second material distribution net belt, dust can flow out of the fine air holes along with air flow when the diameter of the fine air holes exceeds the diameter of the fine air holes, the remaining materials are adsorbed on the lower bottom surface of the second material distribution net belt and move along with the second material distribution net belt, and after the materials leave the inside of the air distribution cylinder, the materials lose the wind force of the positive pressure air and the suction force of the negative pressure air and fall off from the second material distribution net belt under the action of gravity, so that the materials enter two blanking ports arranged below the left end of the second material distribution net belt, and screened materials of the parts are collected through the two blanking ports, and the effect of material separation is achieved.

However, the air separation device in the above patent still has certain not enough, and first, the material feeding process is that after falling the material from the feeding device to the first material separation mesh belt, the material moves forward leftwards along with the first material separation mesh belt, and enters into the part where the air separation cylinder body and the first material separation cavity coincide, and the material feeding structure is complicated, and occupies a large space. Secondly, a conveying mesh belt is adopted for feeding, materials are always stacked on the conveying mesh belt, and therefore the dispersing effect under the action of wind power is poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that to prior art's current situation, provide a feeding simple structure, and the effectual air separator that is used for different proportion materials of material dispersion.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: a winnowing machine for materials of different specific gravities, comprising:

the winnowing cylinder is provided with a vertically arranged inner cavity, the inner cavity of the winnowing cylinder is sequentially divided into a feeding area and a low-specific-gravity material discharging area from bottom to top, the bottom of the winnowing cylinder is provided with a first discharging hole for high-specific-gravity materials to flow out, and the top of the winnowing cylinder is provided with a second discharging hole for low-specific-gravity materials to flow out;

the feeding device is arranged at the position of a feeding area of the air separation cylinder and comprises a material conveying pipe for conveying materials separated by a belt into the air separation cylinder;

the first air inlet device is arranged at the position of a feeding area of the air separation cylinder and comprises a first air inlet pipe and a first air knife, and an outlet of the first air inlet pipe is connected with the first air knife;

the second air inlet device is arranged at the position of the low-specific-gravity material discharging area of the air separation cylinder and comprises a second air inlet pipe and a second air knife, and an outlet of the second air inlet pipe is connected with the second air knife;

still including locating the material dispersion devices in feed area, material dispersion devices includes:

the annular bushing is provided with a placement cavity which is vertically arranged and is used for placing the first air knife;

the dispersion disc is flatly arranged in the placement cavity and is positioned above the first air knife, and the dispersion disc can be driven by the driving mechanism to rotate around the axis of the dispersion disc, so that materials falling onto the dispersion disc are dispersed towards the periphery under the centrifugal action;

the wind shield covers the annular bushing, and a material dispersing opening for discharging materials from inside to outside is reserved between the wind shield and the top of the annular bushing;

the conveying pipeline of the feeding device is connected to the windshield, and the discharge hole of the conveying pipeline faces the dispersion disc.

In order to facilitate blanking at the bottom and discharging at the top, the first discharging hole is an inverted cone-shaped hole with a large upper part and a small lower part, and the second discharging hole is a cone-shaped hole with a small upper part and a large lower part.

In order to ensure the uniform air outlet of the first air knife so as to ensure the material dispersion effect, the first air knife is integrally disc-shaped, and the peripheral wall of the first air knife is provided with a first annular air port arranged along the circumferential direction of the first air knife.

In order to make the dispersion impeller can be with the material to outer peripheral homodisperse, the dispersion impeller includes the disk body and locates a plurality of baffles at the top of this disk body, each the baffle is followed the circumference of disk body is interval arrangement in proper order, and every baffle all follows the radial extension of disk body.

In order to drive the dispersion impeller to rotate, the driving mechanism comprises a driving motor and a transmission shaft assembly which is in transmission connection with the driving motor, the transmission shaft assembly comprises a first transmission shaft which is transversely arranged and a second transmission shaft which is vertically arranged, the driving motor is arranged outside the air separation barrel, an output shaft of the driving motor is connected with a first end of the first transmission shaft, a second end of the first transmission shaft is in transmission connection with a lower end of the second transmission shaft, and the upper end of the second transmission shaft is connected with the bottom of the dispersion impeller body.

In order to make the structure of the material dispersing device more compact, the middle part of the first air knife is provided with a vertical through abdicating hole, and the second transmission shaft is arranged in the abdicating hole.

As an improvement, the second air knife is integrally annular, so that an overflowing flow channel of the material supply channel is defined in the middle, and a second annular air opening formed along the circumferential direction of the overflowing flow channel is formed in the inner circumferential wall of the overflowing flow channel of the second air knife.

As an improvement, the wind shield is in a conical shape with a small top and a big bottom, and the part of the material conveying pipe, which is positioned in the wind shield, extends downwards from the middle of the wind shield.

In order to form the material dispersing opening, the top of the annular bushing is provided with a plurality of supporting rods extending upwards, the supporting rods are arranged at intervals along the periphery of the annular bushing, and the wind shield is arranged at the top of each supporting rod.

As an improvement, the bottom of the winnowing cylinder body is also provided with a support frame.

Compared with the prior art, the utility model has the advantages that: the material dispersion devices that set up in the feed zone of selection by winnowing barrel can carry out the homodisperse with the material that enters into this feed zone through mutually supporting of first air knife, dispersion impeller and windshield, has improved dispersion effect, and on the other hand, place in the selection by winnowing barrel in most parts of above-mentioned material dispersion devices for the occupation space of selection by winnowing machine complete machine is less relatively, and convenient transportation and installation.

Drawings

Fig. 1 is a schematic perspective view of an embodiment of the present invention;

fig. 2 is a vertical cross-sectional view of an embodiment of the present invention;

fig. 3 is a schematic perspective view of a material dispersing device according to an embodiment of the present invention (showing a feeding pipe and a first air intake device);

fig. 4 is an exploded view of fig. 3.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

Directional terms such as "front", "rear", "upper", "lower", "left", "right", "side", "top", "bottom", and the like are used in the description and claims of the present invention to describe various example structural portions and elements of the present invention, but these terms are used herein for convenience of description only and are determined based on example orientations shown in the drawings. Because the disclosed embodiments may be arranged in different orientations, these directional terms are for illustrative purposes only and should not be construed as limiting, and for example, "upper" and "lower" are not necessarily limited to orientations opposite or consistent with the direction of gravity.

Referring to fig. 1 to 4, an air separator for materials of different specific gravities includes an air separation cylinder 10, a feeding device, a first air intake device, a second air intake device, and a material dispersing device.

Referring to fig. 2, the winnowing cylinder 10 has a vertically arranged inner cavity, and the inner cavity is divided into a feeding area 101, a separation area 102 and a low specific gravity material discharging area 103 from top to bottom. The bottom of the winnowing cylinder 10 is provided with a first discharge hole 11 for the outflow of the materials with high specific gravity, and the top is provided with a second discharge hole 12 for the outflow of the materials with low specific gravity. The first discharge port 11 is an inverted cone-shaped port with a large upper part and a small lower part, and the second discharge port 12 is a cone-shaped port with a small upper part and a large lower part, so that the high specific gravity materials separated in the winnowing cylinder 10 can conveniently fall downwards through the first discharge port 11, and the low specific gravity materials can conveniently discharge upwards through the second discharge port 12 under the action of negative pressure, specifically, the port of the second discharge port 12 is also provided with a discharge pipe 13 bent and extended towards the negative pressure aggregate area on the side part, and the discharge material is connected with an external negative pressure fan. The bottom of the winnowing cylinder 10 is also provided with a support bracket 71.

The feeding device is arranged at the position of the feeding area 101 of the air separation cylinder body 10. The feeding device comprises a material conveying pipe 20 for conveying the separated material to the air separation cylinder 10. Specifically, the material delivery pipe 20 penetrates through the wall of the air separation cylinder 10 from outside to inside and extends into the inner cavity thereof, wherein the material delivery pipe 20 further has a section extending vertically, the section of the material delivery pipe 20 extending vertically is located in the middle of the air separation cylinder 10, and the port at the bottom is the discharge port.

The first air intake device is arranged at the position of the feeding area 101 of the air separation cylinder 10. The first air inlet device comprises a first air inlet pipe 30 and a first air knife 31, wherein an inlet of the first air inlet pipe 30 can be connected with an external fan, and an outlet of the first air inlet pipe 30 is connected with the first air knife 31. The first air knife 31 is integrally disc-shaped, and the peripheral wall thereof is provided with a first annular air opening 311 arranged along the circumferential direction thereof, and after the external fan is started, the first annular air opening 311 of the first air knife 31 can uniformly supply air to the peripheral wall.

The material dispersing device is also arranged in the feed region 101 of the air separation cylinder 10. Referring to fig. 3 and 4, the material dispersing device includes a bracket 50, an annular bushing 51, a dispersing plate 52, a wind shield 53, and a driving mechanism for driving the dispersing plate 52 to rotate.

The bracket 50 is connected to the inner peripheral wall of the winnowing cylinder 10, and has a frame structure with a neutral space for placing the above-mentioned components such as the annular bushing 51, the dispersion disc 52, and the wind shield 53.

The annular bush 51 has a vertically arranged seating chamber 511 in which the first air knife 31 can be placed. The dispersion plate 52 is flatly arranged in the placing cavity and is positioned above the first air knife 31 and opposite to the discharge hole of the feed delivery pipe 20. The dispersing plate 52 can be driven by the driving mechanism to rotate around the axis thereof, so that the materials falling on the dispersing plate can be dispersed towards the periphery under the centrifugal action. Specifically, the dispersion tray 52 includes a tray body 521 and a plurality of partition plates 522 provided on the top of the tray body 521, the partition plates 522 are sequentially arranged at intervals in the circumferential direction of the tray body 521, and each partition plate 522 extends in the radial direction of the tray body 521. When the dispersion disc 52 is driven by the driving mechanism to rotate, the materials falling onto the dispersion disc 52 can be dispersed all around under the centrifugal action.

The wind shield 53 is a cone with a small upper part and a large lower part, and is covered above the annular bushing 51, and a material dispersing opening 54 for discharging the material from inside to outside is reserved between the wind shield and the top of the annular bushing 51. Specifically, the top of the annular bushing 51 has a support rod 510 extending upward, and the support rod 510 is provided in plurality and sequentially spaced in the circumferential direction of the annular bushing 51. The wind shield 53 is connected to the top of the plurality of support rods 510 such that a material dispersing opening 54 for discharging the material from the inside to the outside is formed between the wind shield 53 and the top of the annular bush 51.

The feed delivery pipe 20 of the feeding device is connected to the windshield 53, and the discharge port of the feed delivery pipe 20 faces the dispersion plate 52.

The dispersion disc 52 is rotated by a drive mechanism. The driving mechanism comprises a driving motor (not shown) and a transmission shaft component in transmission connection with the driving motor, wherein the driving motor is arranged outside the air separation cylinder body 10. The transmission shaft assembly comprises a first transmission shaft 61 transversely arranged and a second transmission shaft 62 vertically arranged, an output shaft of the driving motor is connected with a first end of the first transmission shaft 61, a second end of the first transmission shaft 61 is in transmission connection with a lower end of the second transmission shaft 62, and the upper end of the second transmission shaft 62 is connected with the bottom of the disc body 521 of the dispersion disc 52. In order to facilitate the connection between the second transmission shaft 62 and the dispersion disc 52, the middle portion of the first air knife 31 has a vertical through-going abdicating hole 310, the second transmission shaft 62 is disposed in the abdicating hole 310, and it can be understood that a bearing and other components are disposed between the second transmission shaft 62 and the peripheral wall of the abdicating hole 310 of the first air duct.

The second air inlet device is arranged at the position of the low specific gravity material discharging area 103 of the air separation cylinder body 10. The second air inlet device comprises a second air inlet pipe 40 and a second air knife 41, wherein an inlet of the second air inlet pipe 40 is connected with an external fan, and an outlet of the second air inlet pipe 40 is connected with the second air knife 41. The second air knife 41 of this embodiment is annular as a whole, the outer peripheral wall of the second air knife 41 is attached to the inner peripheral wall of the air separation cylinder 10, and defines a flow passage 410 for material passage in the middle, and the inner peripheral wall of the flow passage 410 of the second air knife 41 has a second annular air opening 411 arranged along the circumferential direction.

The working process of the winnowing machine of the embodiment is as follows:

the material to be separated is continuously conveyed into the air separation cylinder 10 through the conveying pipe 20, and at the same time, the driving mechanism drives the dispersion disc 52 to rotate, so that the material falling on the dispersion disc 52 is dispersed towards the periphery. The external fans of the first air inlet device and the second air inlet device and the negative pressure fan of the negative pressure material collecting area are started, and air is respectively fed into the air separation cylinder 10 through the first air inlet pipe 30, the first air knife 31, the second air inlet pipe 40 and the second air knife 41. The air outlet pressure of the first air knife 31 and the air outlet pressure of the second air knife 41 can be independently adjusted. Under the action of the wind force of the first wind knife 31, the materials with low specific gravity (small weight) dispersed by the dispersion disc 52 are blown up and flow upwards, and the materials with high specific gravity (large weight) are converged downwards under the action of the self gravity and flow out of the air separation cylinder 10 through the first discharge hole 11. A material separation area 102 is formed between the first air inlet device and the second air inlet device, materials with low specific gravity flowing upwards are separated again under the action of the negative pressure fan and the second air inlet device, and finally, relatively fine dust materials (materials with low specific gravity) are collected to an external negative pressure collection area through the discharge pipe 13. Through the pressure control of the first air inlet device, the second air inlet device and the negative pressure fan, materials with different specific gravities can be fully separated in the feeding area 101, the separation area 102 and the low-specific gravity material separation area 102, and the fine dust materials can be fully dispersed, atomized and separated.

Claims

1. A winnowing machine for materials of different specific gravities, comprising:

the winnowing cylinder body (10) is provided with a vertically arranged inner cavity, the inner cavity is divided into a feeding area (101) positioned below and a low specific gravity material discharging area (103) positioned above, the bottom of the winnowing cylinder body (10) is provided with a first discharging hole (11) for high specific gravity materials to flow out, and the top of the winnowing cylinder body is provided with a second discharging hole (12) for low specific gravity materials to flow out;

the feeding device is arranged at the position of a feeding area (101) of the air separation cylinder (10) and comprises a material conveying pipe (20) for conveying materials separated by a belt into the air separation cylinder (10);

the first air inlet device is arranged at the position of a feeding area (101) of the air separation cylinder body (10), and comprises a first air inlet pipe (30) and a first air knife (31), wherein the outlet of the first air inlet pipe (30) is connected with the first air knife (31);

the second air inlet device is arranged at the position of the low specific gravity material discharging area (103) of the air separation cylinder body (10), and comprises a second air inlet pipe (40) and a second air knife (41), and the outlet of the second air inlet pipe (40) is connected with the second air knife (41);

the device is characterized by further comprising a material dispersing device arranged in the feeding area (101), wherein the material dispersing device comprises:

an annular bushing (51) having a seating cavity (511) vertically arranged for the first air knife (31) to be placed therein;

the dispersion disc (52) is flatly arranged in the placement cavity and is positioned above the first air knife (31), and the dispersion disc (52) can be driven by a driving mechanism to rotate around the axis of the dispersion disc, so that materials falling onto the dispersion disc can be dispersed towards the periphery under the centrifugal action;

the wind shield cover (53) is covered above the annular bushing (51), and a material dispersing opening (54) for discharging materials from inside to outside is reserved between the wind shield cover and the top of the annular bushing (51);

the delivery pipe (20) of the feeding device is connected to the windshield (53), and the discharge hole of the delivery pipe (20) faces the dispersion disc (52).

2. The air classifier for materials of different specific gravity according to claim 1, wherein: the first discharge hole (11) is an inverted cone-shaped opening with a large upper part and a small lower part, and the second discharge hole (12) is a cone-shaped opening with a small upper part and a large lower part.

3. The air classifier for materials of different specific gravity according to claim 1, wherein: the first air knife (31) is integrally disc-shaped, and a first annular air opening (311) formed in the circumferential direction of the first air knife is formed in the outer circumferential wall of the first air knife.

4. The air classifier for materials of different specific gravity according to claim 3, wherein: the dispersion disc (52) comprises a disc body (521) and a plurality of partition plates (522) arranged at the top of the disc body (521), the partition plates (522) are sequentially arranged at intervals along the circumferential direction of the disc body (521), and each partition plate (522) extends along the radial direction of the disc body (521).

5. The air separator for materials of different specific gravities according to claim 4, wherein: actuating mechanism includes driving motor and the transmission shaft subassembly of being connected with this driving motor transmission, and this transmission shaft subassembly includes first transmission shaft (61) and the second transmission shaft (62) of vertical setting that transversely sets up, driving motor locates the outside of selection by winnowing barrel (10), its output shaft with the first end of first transmission shaft (61) is connected, the second end of first transmission shaft (61) with the lower extreme transmission of second transmission shaft (62) is connected, the upper end of second transmission shaft (62) with the bottom of disk body (521) of dispersion impeller (52) is connected.

6. The air classifier for materials of different specific gravity according to claim 5, wherein: the middle part of first air knife (31) has vertical through hole of stepping down (310), second transmission shaft (62) are located in the hole of stepping down (310).

7. The air separator for materials of different specific gravities according to claim 1, wherein: the second air knife (41) is annular as a whole, so that an overflowing flow channel (410) for a material channel is defined in the middle, and a second annular air opening (411) formed along the circumferential direction of the overflowing flow channel (410) of the second air knife (41) is formed in the inner circumferential wall of the overflowing flow channel (410).

8. The air separator for materials with different specific gravities according to any one of claims 1 to 7, characterized in that: the wind shield (53) is in a conical shape with a small top and a big bottom, and the part of the material conveying pipe (20) located in the wind shield (53) extends downwards from the middle of the wind shield (53).

9. The air separator for materials with different specific gravities according to any one of claims 1 to 7, characterized in that: the top of the annular bushing (51) is provided with a plurality of supporting rods (510) extending upwards, the supporting rods (510) are arranged at intervals along the periphery of the annular bushing (51), and the wind shield (53) is arranged at the top of each supporting rod (510).

10. The air separator for materials with different specific gravities according to any one of claims 1 to 7, characterized in that: the bottom of the winnowing cylinder body (10) is also provided with a support frame (71).