CN117548186A - High-efficient sorter of qualified material backward flow is prevented - Google Patents

High-efficient sorter of qualified material backward flow is prevented Download PDF

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Publication number
CN117548186A
CN117548186A CN202410044343.1A CN202410044343A CN117548186A CN 117548186 A CN117548186 A CN 117548186A CN 202410044343 A CN202410044343 A CN 202410044343A CN 117548186 A CN117548186 A CN 117548186A
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CN
China
Prior art keywords
cavity
sorting
wall
air
guide sleeve
Prior art date
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Granted
Application number
CN202410044343.1A
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Chinese (zh)
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CN117548186B (en
Inventor
吕勇
纪官亮
孙雪平
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Weifang Essence Equipment Technology Co ltd
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Weifang Essence Equipment Technology Co ltd
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Priority to CN202410044343.1A priority Critical patent/CN117548186B/en
Publication of CN117548186A publication Critical patent/CN117548186A/en
Application granted granted Critical
Publication of CN117548186B publication Critical patent/CN117548186B/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C13/00Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/14Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices
    • B02C13/18Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices with beaters rigidly connected to the rotor
    • B02C13/1807Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices with beaters rigidly connected to the rotor the material to be crushed being thrown against an anvil or impact plate
    • B02C13/1814Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices with beaters rigidly connected to the rotor the material to be crushed being thrown against an anvil or impact plate by means of beater or impeller elements fixed on top of a disc type rotor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C13/00Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/26Details
    • B02C13/28Shape or construction of beater elements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/18Adding fluid, other than for crushing or disintegrating by fluid energy
    • B02C23/24Passing gas through crushing or disintegrating zone
    • B02C23/32Passing gas through crushing or disintegrating zone with return of oversize material to crushing or disintegrating zone
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C13/00Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/26Details
    • B02C13/28Shape or construction of beater elements
    • B02C2013/2808Shape or construction of beater elements the beater elements are attached to disks mounted on a shaft
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/62Plastics recycling; Rubber recycling

Abstract

The invention relates to the technical field of material separation, in particular to a high-efficiency separator for preventing qualified materials from flowing back, which comprises a separation cavity, wherein a backflow preventing device and a horizontally rotating crushing disc are arranged in the separation cavity; the backflow preventing device is positioned above the crushing disc; the backflow prevention device comprises an air guide sleeve, a hollow cavity is arranged in the air guide sleeve, an air supplementing port communicated with the cavity is arranged on the air guide sleeve, and an air outlet communicated with the cavity is arranged at the lower part of the air guide sleeve; the air outlet is positioned above the edge of the crushing disc. According to the invention, by arranging the backflow preventing device in the sorting cavity, vortex formation above the edge of the crushing disc can be effectively avoided, qualified materials are timely sorted by upward movement under the drive of air flow, the backflow and overcrushing of the qualified materials are effectively avoided, the sorting efficiency of the sorting machine is improved, the granularity of the product is more concentrated, the yield of the qualified product is improved by 5% -10%, and the resource utilization rate is greatly improved.

Description

High-efficient sorter of qualified material backward flow is prevented
Technical Field
The invention relates to the technical field of material separation, in particular to a high-efficiency separator for preventing qualified materials from flowing back.
Background
A classifier is a device that performs a hierarchical screening of products. The materials enter the sorting cavity and are scattered and crushed, the qualified materials with small particle sizes after crushing rise under the action of negative pressure, the qualified materials are sorted out through the sorting impeller, and the unqualified large-particle materials return to the sorting cavity again under the action of gravity and are crushed again.
In the prior art, the linear speed of the hammer head at the edge of the crushing disc exceeds 100 m/s when the crushing disc rotates due to the high rotating speed of the crushing disc during operation. When the hammer rotates, a negative pressure area is formed at the rear side of the hammer, and the negative pressure value is very high. Under the action of negative pressure, the air above the hammer head drives the fine powder to move downwards, and the negative pressure area is backfilled. Therefore, vortex can be formed above the hammer head in the sorting cavity during operation of the sorting machine, and part of qualified materials with small particle sizes can be mixed in the vortex to circularly move in the sorting cavity, so that the qualified materials cannot be timely taken away by negative pressure air flow to be sorted, and the qualified materials are repeatedly crushed at the position to cause excessive crushing of the materials. The sorting efficiency and the yield of the sorting machine are reduced, the granularity of the sorted products is not concentrated, and the quality of the products is seriously affected. For example: the negative electrode material graphite of the new energy battery can seriously affect the performance and quality of the new energy battery if the granularity of the graphite product is not concentrated.
Therefore, designing a high-efficiency separator for preventing backflow of qualified materials is a technical problem to be solved by those skilled in the art.
Disclosure of Invention
Aiming at the defects, the invention provides the efficient separator for preventing the backflow of the qualified materials, which can effectively prevent the backflow of the qualified materials, improve the separation efficiency of the separator and has the advantages of more concentrated granularity of the product, high utilization rate of resources and the like.
In order to solve the problems, the invention adopts the following technical scheme:
the efficient sorting machine for preventing qualified material from flowing back comprises a sorting cavity, wherein a backflow preventing device and a horizontally rotating crushing disc are arranged in the sorting cavity; the backflow preventing device is positioned above the crushing disc; the backflow prevention device comprises an air guide sleeve, a hollow cavity is arranged in the air guide sleeve, an air supplementing port communicated with the cavity is arranged on the air guide sleeve, and an air outlet communicated with the cavity is arranged at the lower part of the air guide sleeve; the air outlet is positioned above the edge of the crushing disc.
As an improvement, the cavity is an annular cavity, and a plurality of air outlets are formed in the bottom of the cavity.
As an improvement, the air guide sleeve comprises an inner wall and an outer wall which are sequentially arranged from inside to outside, and further comprises a bottom wall, wherein the inner wall, the outer wall and the bottom wall jointly encircle to form the cavity.
As an improvement, the outer wall is of a cylindrical structure, the air supply port is arranged on the outer wall, and the inner wall is of a funnel-shaped structure with a large upper end and a small lower end; the upper end of the outer wall is fixedly connected with the upper end of the inner wall.
As an improvement, a plurality of fixing plates which are arranged at intervals are arranged on the air guide sleeve.
As an improvement, the backflow preventing device is fixedly arranged in the sorting cavity through the fixing plate, and the air supplementing port extends to the outside of the sorting cavity.
As an improvement, a sorting impeller assembly which is horizontally and rotatably arranged is arranged in the sorting cavity, and the sorting impeller assembly is arranged at the top of the sorting cavity; the top of the sorting cavity is connected with a discharge port which is communicated with the inside of the sorting cavity through a sorting impeller assembly.
As an improvement, the edge of the crushing disc is fixedly provided with a plurality of hammers which are arranged at intervals, and the position on the inner wall of the sorting cavity corresponding to the hammers is provided with a wear-resistant lining plate.
As an improvement, a feed inlet is arranged on the side wall of the sorting cavity, and the feed inlet is positioned above the crushing disc; the bottom of the sorting cavity is provided with an air inlet.
Compared with the prior art, the invention has the following advantages:
according to the invention, by arranging the backflow preventing device in the sorting cavity, vortex formation above the edge of the crushing disc can be effectively avoided, qualified materials are timely sorted by upward movement under the drive of air flow, the backflow and overcrushing of the qualified materials are effectively avoided, the sorting efficiency of the sorting machine is improved, the granularity of the product is more concentrated, the yield of the qualified product is improved by 5% -10%, and the resource utilization rate is greatly improved.
The invention will now be described in detail with reference to the drawings and examples.
Drawings
FIG. 1 is a schematic diagram of a high-efficiency separator for preventing backflow of qualified materials in an embodiment of the invention;
FIG. 2 is a schematic view of the anti-reflux apparatus of FIG. 1;
FIG. 3 is a top view of FIG. 2;
FIG. 4 is a schematic view of the shredder plate of FIG. 1;
FIG. 5 is a top view of FIG. 4;
wherein: the device comprises a sorting chamber 1, an air inlet 2, a power rotating shaft 3, a connecting sleeve 4, a feeding inlet 5, a smashing disc 6, a hammer head 7, a wear-resistant lining plate 8, a sorting impeller assembly 9, a discharging outlet 10, an air supplementing port 11, an air guiding sleeve 12, a fixing plate 13, an air outlet 14, a cavity 15, an inner wall 16, an outer wall 17, a bottom wall 18, an upper cavity 19, an impeller rotating shaft 20, a conical surface 21, a first mounting hole 22, a second mounting hole 23, a third mounting hole 24 and a mounting groove 25.
Detailed Description
Examples
As shown in fig. 1, the efficient sorting machine for preventing qualified materials from flowing back comprises a sorting cavity 1, wherein a feed inlet 5 is formed in the side wall of the sorting cavity 1, and an air inlet 2 is formed in the bottom of the sorting cavity 1.
As shown in fig. 1, a horizontally rotatably arranged pulverizing disc 6 is arranged in the sorting chamber 1. Specifically, a power rotating shaft 3 which is vertically arranged in a rotating manner is arranged in the sorting cavity 1, a connecting sleeve 4 is fixed at the upper end of the power rotating shaft 3, and a crushing disc 6 is fixedly arranged on the connecting sleeve 4. The lower end of the power rotating shaft 3 extends to the outside of the sorting chamber 1 and is connected with a power device in a transmission way. When the power rotating shaft 3 rotates, the crushing disc 6 is driven to horizontally rotate.
As shown collectively in fig. 1, 4 and 5, the shredder plate 6 includes a disk-shaped plate body having a thick middle portion and a thin rim. The upper side of the tray body is provided with a conical surface 21, and the conical surface 21 extends from the middle part of the tray body to the edge of the tray body. The included angle between the conical surface 21 and the plane of the tray body is alpha, and alpha is more than or equal to 1 degree and less than or equal to 30 degrees. In this embodiment, α=3° is preferable.
The middle part of the tray body is provided with a first through mounting hole 22, and the edge of the tray body is provided with a plurality of uniformly distributed mounting grooves 25; the mounting groove 25 is located on the upper side of the tray body. In the present embodiment, the number of the mounting grooves 25 is preferably twelve. The bottom of the mounting groove 25 is provided with a second mounting hole 23 vertically penetrating the tray body. Six through third mounting holes 24 are uniformly distributed on the periphery of the first mounting hole 22. The grating disk 6 is fixedly mounted on the connecting sleeve 4 by means of a third mounting hole 24 and a fastening piece.
The crushing disc 6 is positioned at the lower part of the sorting chamber 1, and the feeding hole 5 is positioned above the crushing disc 6. The edge of the crushing disc 6 is fixedly provided with a plurality of hammerheads 7 which are arranged at intervals, and the hammerheads 7 are detachably arranged in the mounting groove 25 of the crushing disc 6 through the second mounting holes 23 and the fasteners. The inner wall of the sorting cavity 1 is provided with a wear-resistant lining plate 8 at a position corresponding to the hammer 7. When the crushing disc 6 horizontally rotates, the hammer 7 and the wear-resistant lining plate 8 can crush materials.
Because the disk body middle part of crushing dish 6 is thick, the edge is thin, and the disk body surface layer is equipped with conical surface 21 for when crushing dish 6 is rotatory, centrifugal force effect down the material move to the edge of crushing dish 6, can obviously reduce the resistance that the material received, both reduced the wearing and tearing of crushing dish 6, prolonged the life of crushing dish 6 again. The life of the shredder plate 6 is increased from 1 year to 3 years, reducing the cost of use and maintenance of the equipment.
A sorting impeller assembly 9 which is horizontally and rotatably arranged is arranged in the sorting cavity 1, and the sorting impeller assembly 9 is arranged at the top of the sorting cavity 1. The sorting impeller assembly 9 is a conventional component on a sorting machine, and belongs to the prior art, and will not be described in detail here. The top of the sorting cavity 1 is connected with a discharge hole 10, and the discharge hole 10 is communicated with the inside of the sorting cavity 1 through a sorting impeller assembly 9. Specifically, the top of the sorting chamber 1 is provided with an upper chamber 19, and the upper chamber 19 is communicated with the interior of the sorting chamber 1. The discharge opening 10 is provided in the upper chamber 19. The upper chamber 19 is internally provided with an impeller rotating shaft 20 which is rotatably arranged, and the upper end of the impeller rotating shaft 20 extends to the outside of the upper chamber 19 and is in transmission connection with a power device. The lower end of the impeller rotating shaft 20 extends into the sorting cavity 1, and the sorting impeller assembly 9 is mounted at the lower end of the impeller rotating shaft 20. When the impeller rotating shaft 20 rotates, the sorting impeller assembly 9 is driven to rotate. The upper chamber 19 communicates with the interior of the sorting chamber 1 via the sorting impeller assembly 9.
As shown in fig. 1, 2 and 3, a backflow preventing device is fixed in the sorting chamber 1. The backflow prevention device comprises an air guide sleeve 12, a hollow cavity 15 is arranged in the air guide sleeve 12, an air supplementing port 11 communicated with the cavity 15 is arranged on the air guide sleeve 12, and an air outlet 14 communicated with the cavity 15 is arranged at the lower part of the air guide sleeve 12. The cavity 15 is an annular cavity, and a plurality of air outlets 14 are formed in the bottom of the cavity 15.
The air guide sleeve 12 comprises an inner wall 16 and an outer wall 17 which are sequentially arranged from inside to outside, and further comprises a bottom wall 18, wherein the inner wall 16, the outer wall 17 and the bottom wall 18 jointly enclose the cavity 15. The outer wall 17 is of a cylindrical structure, the air supply port 11 is arranged on the outer wall 17, and the inner wall 16 is of a funnel-shaped structure with a large upper end and a small lower end; the upper end of the outer wall 17 is fixedly connected with the upper end of the inner wall 16. The air outlet 14 is provided in the bottom wall 18. The air outlet 14 is located above the edge of the shredder plate 6.
The air guide sleeve 12 is provided with a plurality of fixing plates 13 which are arranged at intervals. In this embodiment, the number of fixing plates 13 is preferably four. The four fixing plates 13 are uniformly distributed on the air guide sleeve 12. The anti-reflux device is fixedly arranged in the sorting cavity 1 through the fixing plate 13, the anti-reflux device is positioned above the crushing disc 6, and the air outlet 14 is positioned above the edge of the crushing disc 6. The air supply port 11 extends to the outside of the sorting chamber 1.
During operation, the crushing disc 6 and the sorting impeller assembly 9 rotate, the crushing disc 6 drives the hammer 7 to rotate at a high speed, the discharge port 10 is always in a negative pressure state, gas is input into the sorting cavity 1 through the air inlet 2, and air flow flowing from the air inlet 2 to the discharge port 10 is formed in the sorting cavity. First, the material enters the sorting chamber 1 through the feed opening 5, and the material entering the sorting chamber 1 first falls onto the pulverizing disc 6. Because the crushing disc 6 drives the hammer 7 to rotate at a high speed, the materials are thrown out to the hammer 7 and the wear-resistant lining plate 8 for crushing treatment under the action of centrifugal force, the crushed materials move upwards under the action of air flow, qualified materials enter the upper chamber 19 through the sorting of the sorting impeller assembly 9 and are discharged from the discharge port 10 when passing through the sorting impeller assembly 9, and unqualified large-particle materials fall onto the crushing disc 6 under the action of gravity and are crushed again.
The separation cavity 1 is internally fixed with the backflow preventing device, the cavity 15 is supplemented with air through the air supplementing port 11, the air is blown to the hammer 7 through the air outlets 14 on the bottom wall 18, and the negative pressure area at the rear side of the hammer 7 is filled, so that vortex formation at the hammer 7 can be effectively avoided, and qualified materials are prevented from being influenced by the vortex to circulate at the hammer 7, so that the materials are excessively crushed. The qualified materials with small particle size are driven by the air flow from bottom to top, can smoothly move upwards, are separated by the separation impeller assembly 9 and then are collected by the discharge port 10, so that the particle size of the product is more concentrated, and the separation efficiency and quality of the product are improved.
In summary, according to the efficient sorting machine for preventing the qualified materials from flowing back, the backflow preventing device is arranged in the sorting cavity, so that vortex can be effectively prevented from being formed above the edge of the crushing disc, the qualified materials are driven by air flow to move upwards to timely sort, the qualified materials are effectively prevented from flowing back and being excessively crushed, the sorting efficiency of the sorting machine is improved, the granularity of the products is more concentrated, the yield of the qualified products is improved by 5% -10%, and the resource utilization rate is greatly improved.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (9)

1. The utility model provides a prevent high-efficient sorter of qualified material backward flow, includes separation chamber (1), its characterized in that: a backflow preventing device and a horizontally rotating crushing disc (6) are arranged in the sorting cavity (1); the backflow prevention device is positioned above the crushing disc (6); the backflow prevention device comprises an air guide sleeve (12), a hollow cavity (15) is arranged in the air guide sleeve (12), an air supplementing port (11) communicated with the cavity (15) is arranged on the air guide sleeve (12), and an air outlet (14) communicated with the cavity (15) is arranged at the lower part of the air guide sleeve (12); the air outlet (14) is positioned above the edge of the crushing disc (6).
2. The high efficiency separator for preventing backflow of acceptable materials according to claim 1, wherein: the cavity (15) is an annular cavity, and a plurality of air outlets (14) are formed in the bottom of the cavity (15).
3. The high efficiency separator for preventing backflow of acceptable materials according to claim 1, wherein: the air guide sleeve (12) comprises an inner wall (16) and an outer wall (17) which are sequentially arranged from inside to outside, and further comprises a bottom wall (18), wherein the inner wall (16), the outer wall (17) and the bottom wall (18) jointly encircle to form the cavity (15).
4. A high efficiency classifier for preventing backflow of acceptable materials as defined in claim 3, wherein: the outer wall (17) is of a cylindrical structure, the air compensating port (11) is arranged on the outer wall (17), and the inner wall (16) is of a funnel-shaped structure with a large upper end and a small lower end; the upper end of the outer wall (17) is fixedly connected with the upper end of the inner wall (16).
5. A high efficiency classifier for preventing backflow of acceptable materials as defined in claim 3, wherein: a plurality of fixing plates (13) which are arranged at intervals are arranged on the air guide sleeve (12).
6. The high-efficiency separator for preventing backflow of qualified materials according to claim 5, wherein: the backflow prevention device is fixedly arranged in the separation cavity (1) through the fixing plate (13), and the air supplementing port (11) extends to the outside of the separation cavity (1).
7. The high-efficiency separator for preventing backflow of qualified materials according to claim 6, wherein: a sorting impeller assembly (9) which is horizontally and rotatably arranged is arranged in the sorting cavity (1), and the sorting impeller assembly (9) is arranged at the top of the sorting cavity (1); the top of the sorting cavity (1) is connected with a discharge hole (10), and the discharge hole (10) is communicated with the inside of the sorting cavity (1) through a sorting impeller assembly (9).
8. The high-efficiency separator for preventing backflow of qualified materials according to claim 6, wherein: the edge of the crushing disc (6) is fixedly provided with a plurality of hammers (7) which are arranged at intervals, and the positions, corresponding to the hammers (7), on the inner wall of the sorting cavity (1) are provided with wear-resistant lining plates (8).
9. The high-efficiency separator for preventing backflow of qualified materials according to claim 6, wherein: a feed inlet (5) is arranged on the side wall of the sorting cavity (1), and the feed inlet (5) is positioned above the crushing disc (6); the bottom of the sorting cavity (1) is provided with an air inlet (2).
CN202410044343.1A 2024-01-12 2024-01-12 High-efficient sorter of qualified material backward flow is prevented Active CN117548186B (en)

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GB522339A (en) * 1939-01-09 1940-06-14 Ernst August Julius Koch Improvements relating to impact mills for grinding and classifying material into fine particles
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US20220168747A1 (en) * 2020-11-30 2022-06-02 Inter-Source Recovery Systems Chip separator for separating clusters of chips
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