CN219540502U - Screening device for separating granular impurities in electric dust by ball mill - Google Patents
Screening device for separating granular impurities in electric dust by ball mill Download PDFInfo
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- CN219540502U CN219540502U CN202320773805.4U CN202320773805U CN219540502U CN 219540502 U CN219540502 U CN 219540502U CN 202320773805 U CN202320773805 U CN 202320773805U CN 219540502 U CN219540502 U CN 219540502U
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- cylindrical screen
- ball mill
- electric dust
- chute
- screening device
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
- Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
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Abstract
The utility model discloses a screening device for separating granular impurities in electric dust by a ball mill, belongs to the technical field of electric dust recycling devices in steel plants, and solves the technical problem that hard granular impurities mixed in the electric dust cause blockage of a pulp suction pump. The screening device comprises a cylindrical screen coaxially arranged at a discharge port of an overflow ball mill, and is characterized in that: the cylindrical screen is used for filtering electric dust removal slurry overflowed from the overflow ball mill; a circular ring baffle is arranged in the discharge hole of the cylindrical screen, the circular ring baffle and the cylindrical screen are coaxially arranged, and the plane of the circular ring baffle is parallel to the cross section of the cylindrical screen; an opening is formed in the circular ring baffle plate and used for flowing out the granular electric dust in the cylindrical screen.
Description
Technical Field
The utility model belongs to the technical field of electric precipitation ash recycling devices in steel plants, and particularly relates to a screening device for separating granular impurities in electric precipitation ash by a ball mill.
Background
The electric dust is dust collected by the flue gas electric dust collector of the sintering machine head in the sintering process of the iron ore, has higher content of elements such as iron, potassium, carbon and the like, and has higher recycling value.
In the process of extracting potassium element in the electric precipitation ash, the potassium element is often required to be ground by a ball mill and then flows into a stirring tank for stirring; then the electric dust-removing slurry in the stirring pool is pumped by a slurry suction pump to carry out the next working procedure; in the grinding process, hard granular impurities are mixed in the electric precipitation ash, and the slurry suction pump is blocked without being screened out, so that the machine is required to be stopped for maintenance, the labor intensity of workers is increased, and the working efficiency is reduced.
Disclosure of Invention
The utility model aims to provide a screening device for separating granular impurities in electric dust by a ball mill, so as to solve the technical problem that hard granular impurities mixed in the electric dust cause blockage of a pulp suction pump.
The utility model adopts the following technical scheme: the screening device for separating granular impurities in the electric precipitation ash of the ball mill comprises a cylindrical screen coaxially arranged at a discharge port of the overflow type ball mill, wherein the cylindrical screen is used for filtering electric precipitation slurry overflowed from the overflow type ball mill;
a circular ring baffle is arranged in the discharge hole of the cylindrical screen, the circular ring baffle and the cylindrical screen are coaxially arranged, and the plane of the circular ring baffle is parallel to the cross section of the cylindrical screen;
an opening is formed in the circular ring baffle plate and used for flowing out the granular electric dust in the cylindrical screen.
Further, an inclined chute is arranged below the cylindrical screen along the axis direction of the cylindrical screen, one end of the chute, which is close to the discharge port of the overflow ball mill, is an upper end, the other end of the chute is a lower end, and the lower end of the chute is communicated with the stirring pool.
Further, an inclined slag chute is arranged at the discharge hole of the cylindrical screen, and the slag chute is positioned above the chute.
Further, wedge-shaped supporting blocks are arranged on two edges of the chute, two U-shaped fixing seats are arranged on the wedge-shaped supporting blocks, openings of the U-shaped fixing seats face to the cylindrical screen, clamping grooves are symmetrically formed in two parallel sections of the U-shaped fixing seats, and slag sliding grooves are formed in the two clamping grooves.
Further, the lower end of the slag chute is provided with a collecting box, and the collecting box is used for collecting granular electric dust falling down through the slag chute.
Further, a water spraying pipe is arranged above the cylindrical screen in the axial direction of the cylindrical screen, and the water spraying pipe is used for flushing electric dust removing mortar liquid adsorbed on the cylindrical screen.
The beneficial effects of the utility model are as follows: the granular electric dust in the electric dust slurry is screened through the cylindrical screen, so that the granular electric dust is prevented from entering the stirring tank, the blockage of the granular electric dust to the slurry suction pump is avoided, the labor intensity of workers is reduced, and the working efficiency is improved.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present utility model.
Wherein: 1. overflow ball mill; 2. a cylindrical screen; 3. a chute; 4. wedge-shaped supporting blocks; 5.U fixing base; 6. a slag chute; 7. a collection box; 8. a circular ring baffle; 9. a water inlet pipe.
Detailed Description
In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Referring to fig. 1, a screening device for separating granular impurities in electric dust by a ball mill comprises a cylindrical screen 2 coaxially arranged at a discharge hole of an overflow ball mill 1, wherein the cylindrical screen 2 is used for filtering electric dust removing mortar liquid overflowed by the overflow ball mill 1, the overflow ball mill 1 rotates to drive the cylindrical screen 2 to synchronously rotate, centrifugal force is generated in the rotating process of the cylindrical screen 2, the generated centrifugal force enables the granular electric dust to be remained in the cylindrical screen 2, and the electric dust removing mortar liquid flows out through the cylindrical screen 2 to separate the granular electric dust from the electric dust removing mortar liquid;
a circular ring baffle 8 is arranged in the discharge hole of the cylindrical screen 2, the circular ring baffle 8 and the cylindrical screen 2 are coaxially arranged, the plane of the circular ring baffle 8 is parallel to the cross section of the cylindrical screen 2, and the circular ring baffle 8 is used for preventing electric dust slurry from flowing out of the discharge hole of the cylindrical screen 2;
the circular ring baffle 8 is provided with an opening for the granular electric dust in the cylindrical screen 2 to flow out.
The granular electric dust in the electric dust slurry is screened through the cylindrical screen 2, so that the granular electric dust is prevented from entering the stirring tank, the blockage of the slurry suction pump by the granular electric dust is avoided, the labor intensity of workers is reduced, and the working efficiency is improved.
The lower part of the cylindrical screen 2 is provided with an inclined chute 3 along the axial direction, one end of the chute 3, which is close to the discharge port of the overflow ball mill 1, is the upper end, the other end is the lower end, the lower end of the chute 3 is communicated with the stirring pool, and the chute 3 is used for guiding the electric precipitation mortar liquid filtered by the cylindrical screen 2 so as to flow into the stirring pool.
An inclined slag chute 6 is arranged at the discharge port of the cylindrical screen 2, the slag chute 6 is positioned above the chute 3, and granular electric dust discharged from the discharge port of the cylindrical screen 2 enters the slag chute 6.
Wedge-shaped supporting blocks 4 are arranged on two edges of the chute 3, the same U-shaped fixing seat 5 is arranged on the two wedge-shaped supporting blocks 4, the opening of the U-shaped fixing seat 5 faces to the cylindrical screen 2, clamping grooves are symmetrically formed in two parallel sections of the U-shaped fixing seat 5, the slag chute 6 is arranged in the two clamping grooves, the U-shaped fixing seat 5 is used for installing the slag chute 6, and meanwhile splashing of granular electric dust is avoided.
The lower end of the slag chute 6 is provided with a collecting box 7, and the collecting box 7 is used for collecting the granular electric dust falling down through the slag chute 6.
The spray pipe 9 is arranged above the cylindrical screen 2 along the axial direction of the cylindrical screen, and the spray pipe 9 is used for flushing electric dust-removing mortar liquid adsorbed on the cylindrical screen 2, so that the surface of the cylindrical screen 2 is kept moist, and blockage is avoided.
The working principle of the utility model is as follows: when electric dust is required to be ground, starting the overflow ball mill 1, and adding water into the overflow ball mill 1 through a water adding pipe, wherein the overflow ball mill 1 rotates to drive the cylindrical screen 2 to synchronously rotate;
the feeding mechanism sends the electric dust into the overflow ball mill 1 for grinding, and when the overflow ball mill 1 rotates, part of electric dust slurry in the overflow ball mill overflows through a discharge port and enters the cylindrical screen 2 for screening out granular electric dust therein, and electric dust slurry for screening out the granular electric dust enters the chute 3 through the cylindrical screen 2 so as to enter the stirring tank; centrifugal force is generated in the rotating process of the cylindrical screen 2, so that the screened granular electric dust is left in the cylindrical screen 2, falls on the slag chute 6 through the opening in the rotating process, and slides into the collecting box 7.
According to the utility model, the granular electric dust in the electric dust slurry is screened through the cylindrical screen 2, and the screened granular electric dust is separated from the electric dust slurry through the slag chute 6, so that the granular electric dust is prevented from entering the stirring tank, the blockage of the slurry suction pump by the granular electric dust is avoided, the labor intensity of workers is reduced, and the working efficiency is improved.
The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.
Claims (6)
1. The screening device for separating granular impurities in the electric precipitation ash of the ball mill is characterized by comprising a cylindrical screen (2) coaxially arranged at a discharge hole of the overflow type ball mill (1), wherein the cylindrical screen (2) is used for filtering electric precipitation slurry overflowed from the overflow type ball mill (1);
a circular ring baffle (8) is arranged in a discharge hole of the cylindrical screen (2), the circular ring baffle (8) and the cylindrical screen (2) are coaxially arranged, and the plane of the circular ring baffle (8) is parallel to the cross section of the cylindrical screen (2);
an opening is formed in the circular ring baffle (8) and is used for flowing out the granular electric dust in the cylindrical screen (2).
2. A screening device for separating particulate impurities from electric dust by a ball mill according to claim 1, characterized in that an inclined chute (3) is arranged below the cylindrical screen (2) along the axial direction of the cylindrical screen, one end of the chute (3) close to a discharge port of the overflow ball mill (1) is an upper end, the other end is a lower end, and the lower end of the chute (3) is communicated with a stirring tank.
3. A screening device for separating particulate impurities from electric precipitator dust in a ball mill according to claim 2, characterised in that the discharge opening of said cylindrical screen (2) is provided with an inclined slag chute (6), said slag chute (6) being located above said chute (3).
4. A screening device for separating granular impurities from electric dust by a ball mill according to claim 3, characterized in that wedge-shaped supporting blocks (4) are arranged on two edges of the chute (3), the same U-shaped fixing seat (5) is arranged on two wedge-shaped supporting blocks (4), the opening of the U-shaped fixing seat (5) faces to the cylindrical screen (2), clamping grooves are symmetrically formed in two parallel sections of the U-shaped fixing seat (5), and the slag chute (6) is arranged in the two clamping grooves.
5. A screening device for separating particulate impurities from electric precipitator dust in a ball mill according to claim 3 or 4, characterised in that the lower end of the slag chute (6) is provided with a collecting box (7), said collecting box (7) being adapted to collect particulate electric precipitator dust which has slipped down through the slag chute (6).
6. A screening device for separating particulate impurities from electric dust by means of a ball mill according to claim 2 or 3, characterized in that the cylindrical screen (2) is provided with a water spray pipe (9) above it in the axial direction, said water spray pipe (9) being intended for flushing the electric dust-removing slurry adsorbed on the cylindrical screen (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320773805.4U CN219540502U (en) | 2023-04-10 | 2023-04-10 | Screening device for separating granular impurities in electric dust by ball mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320773805.4U CN219540502U (en) | 2023-04-10 | 2023-04-10 | Screening device for separating granular impurities in electric dust by ball mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219540502U true CN219540502U (en) | 2023-08-18 |
Family
ID=87737724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320773805.4U Active CN219540502U (en) | 2023-04-10 | 2023-04-10 | Screening device for separating granular impurities in electric dust by ball mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219540502U (en) |
-
2023
- 2023-04-10 CN CN202320773805.4U patent/CN219540502U/en active Active
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