CN212263183U - Scraper device for pelletizer and disc pelletizer with same - Google Patents
Scraper device for pelletizer and disc pelletizer with same Download PDFInfo
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- CN212263183U CN212263183U CN202020782078.4U CN202020782078U CN212263183U CN 212263183 U CN212263183 U CN 212263183U CN 202020782078 U CN202020782078 U CN 202020782078U CN 212263183 U CN212263183 U CN 212263183U
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- pelletizer
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Abstract
The utility model provides a balling machine is with scraper device and disc balling machine that has device, includes frame (2) of being connected with balling machine frame (1), at least one set transmission reduction gears (3) of being connected with frame (2), scraper mounting bracket (4) of being connected with transmission reduction gears (3) lower extreme, stick formula scraper (5) that a plurality of sets are connected with scraper mounting bracket (4), stick formula scraper (5) including stick pole (501) of being connected with mounting bracket (4), with sheath (502), ceramic head (503) in embedding sheath (502) that stick pole (501) lower extreme is connected, the surface of sheath (502) has wearing layer (504). The utility model provides a technical scheme can prevent that ceramic intercrystalline from peeling off, avoiding producing the crackle, and sheath (502) prevent that the material from producing impact, shearing to ceramic head, has improved the fracture toughness of stick formula scraper (5), and ceramic head plays the guard action to the bottom of sheath (502), improves the bottom wearability of scraper, increase of service life.
Description
Technical Field
The utility model belongs to the technical field of pelletizer technique and specifically relates to a disc pelletizer that is used for disc pelletizer's scraper device and has this scraper device is related to.
Background
The disk pelletizer is equipment for making fine-grained powder into spherical material whose grain size meets the requirements of next procedure, and can be extensively used in the steel-iron pelletizing industry and cement industry. The scraper is used as an important part of the disc pelletizer, and the performance of the scraper directly influences the pelletizing quality and yield of the disc pelletizer.
The disk body of the disk pelletizer consists of a bottom plate and side plates, wherein the bottom plate is circular, the side plates are cylindrical, and lining plates are arranged on the upper surface and the inner surface of the bottom plate to isolate the disk body from materials. In the process of pelletizing, only the materials rolling relative to the disc can be pelletized. A large amount of materials can be deposited and adhered to the bottom of the plate body in the pelletizing process, pelletizing is influenced to continue, and the materials need to be scraped from the bottom of the plate by a scraper. When the scraper scrapes the deposited material from the tray bottom, in order to prevent the scraper from scratching the lining board, a material layer with a certain thickness is usually reserved between the scraper and the lining board as an isolating layer. The isolating layer covers the surface of the lining plate and has great abrasion effect on the bottom of the scraper.
The scraper in the related technology is generally made of common carbon steel, the scraping capability of the scraper made of the common carbon steel is reduced due to serious abrasion, so that the problems of increased energy consumption, reduced balling rate and balling quality and the like are caused, and the scraper is frequently replaced due to the serious abrasion, so that the balling efficiency is reduced. 110975752A discloses a scraper component for a disk pelletizer and the disk pelletizer with the same, in particular discloses that the scraper is an alloy ceramic piece. The ceramic has the characteristic of good wear resistance. However, when the ceramic is applied, the intergranular exfoliation of the ceramic is very serious, and the fracture toughness is not enough. When the ceramic scraper is used as a scraper, the failure is not caused by abrasion, but is caused by intercrystalline spalling and low fracture toughness, specifically, transverse cracks or flaky falling are generated on the surface of the ceramic, and when the ceramic scraper does not reach the abrasion service life, the scraper fails because of the cracks and the flaky falling, so that the service life of the scraper is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving the defect that exists among the prior art. Therefore, one of the technical problems to be solved by the utility model is to provide a scraper device for a disc pelletizer, which has good wear resistance, less maintenance, stable operation, long service life, high pelletizing quality and output; the second technical problem of the present invention is to provide a disc pelletizer having the above scraper device.
In order to solve the technical problem, on the one hand, the utility model provides a scraper device for pelletizer, include the frame of being connected with the pelletizer frame, at least one set with the transmission reduction gears that the frame is connected, with the scraper mounting bracket that transmission reduction gears lower extreme is connected, a plurality of sets with the excellent formula scraper that the scraper mounting bracket is connected, excellent formula scraper include with the mounting bracket be connected excellent pole, with sheath, embedding that excellent pole lower extreme is connected ceramic head in the sheath, the surface of sheath has the wearing layer.
Further improve technical scheme, the utility model provides a pelletizer is with scraper device, transmission reduction gears includes the motor, with the speed reducer that motor drive connects, the bearing box of being connected with the frame, the pivot of scraper mounting bracket is passed through the bearing and is connected with the bearing box, and the pivot of scraper mounting bracket is passed through the shaft joint and is connected with the speed reducer transmission.
Further improve technical scheme, the utility model provides a scraper device for pelletizer, transmission reduction gears and mounting bracket are two at least sets, and adjacent transmission reduction gears is located two sides of frame respectively.
In order to solve the above technical problem, on the other hand, the utility model provides a pelletizer disc has the scraper device for pelletizer in aforementioned arbitrary.
Generally when ceramics are used as blades, the failure is not due to wear, but to intergranular spalling and low fracture toughness, which is manifested by transverse cracks or flaking on the ceramic surface, i.e. the blade has been destroyed by cracks and flaking before the ceramic blade has reached its wear life. The utility model provides a technical scheme can prevent that ceramic intercrystalline from peeling off, avoiding producing the crackle, extension product life. During operation, the sheath is crowded the material and is opened, prevents that the material from producing impact, shearing to ceramic head, and the sheath has improved the fracture toughness of stick formula scraper, and the basal surface and the contact of material isolation layer of ceramic head scrape the material, and ceramic head plays the guard action to the bottom of sheath, improves the bottom wearability of stick formula scraper, increase of service life.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this application, illustrating embodiments of the invention and description thereof for the purpose of explanation and are not intended to constitute an undue limitation on the invention. In the drawings:
FIG. 1 is a schematic structural diagram of a scraper device for a pelletizer according to an embodiment;
FIG. 2 is a schematic structural view of a transmission speed reducing mechanism of the scraper device for the pelletizer according to the embodiment;
fig. 3 is a schematic structural diagram of a rod type scraper of the scraper device for the pelletizer according to the embodiment.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
The disc pelletizer and the scraper device thereof shown in fig. 1 comprise a frame 2 connected with a pelletizer base 1, three sets of transmission reducing mechanisms 3 connected with the frame 2, scraper mounting frames 4 respectively connected with the lower ends of the transmission reducing mechanisms 3, and a plurality of sets of rod type scrapers 5 connected with the scraper mounting frames 4. The transmission speed reducing mechanisms 3 are connected with one end of the frame 2, the adjacent transmission speed reducing mechanisms 3 are respectively positioned at two sides of the frame 2 and are arranged in a staggered mode, the transmission speed reducing mechanisms are connected with one end of the frame, and the covering length of the rod type scraper 5 is not less than the radius of the disc body of the disc pelletizer.
As shown in fig. 3, the rod type scraper 5 comprises a rod 501 connected with the mounting frame 4, a sheath 502 connected with the lower end of the rod 501, and a ceramic head 503 embedded in the sheath 502, wherein the outer surface of the sheath 502 is provided with a wear-resistant layer 504.
As shown in fig. 2, in the pelletizer and the scraper device thereof, the transmission speed reduction mechanism 3 includes a motor 301, a speed reducer 302 in transmission connection with the motor 301, and a bearing box 304 in connection with the frame 2, the rotating shaft of the scraper mounting frame 4 is connected with the bearing box 304 through a bearing, and the rotating shaft of the scraper mounting frame 4 is in transmission connection with the speed reducer 302 through a coupling 303.
In the pelletizing process, materials can be deposited and pasted at the bottom of the plate body, the pelletizing is influenced to continue, and the materials need to be scraped from the bottom of the plate by a scraper. The transmission speed reducing mechanism 3 drives the scraper mounting rack 4 and the rod type scraper 5 to rotate, the disc body of the disc pelletizer also rotates, and the rod type scraper 5 and the material deposition layer generate relative motion to scrape deposited materials.
Adopt the technical scheme that this practicality provides, when stick scraper 5 scrapes sedimentary material from the bottom, in order to prevent 5 scratch welts of stick scraper, remain certain clearance during the installation between stick scraper 5 and the disk body welt, make and form the material isolation layer between stick scraper 5 and the disk body welt. The isolating layer will always cover the surface of the lining plate, which has a good wear resistance to the abrasion effect generated at the bottom of the rod type scraper 5 and when the ceramic is used as the main material of the scraper. The sheath 502 protects the ceramic head 503 from intergranular spalling or fracture of the ceramic head 503 leading to failure of the rod blade 5.
Generally when ceramics are used as blades, the failure is not due to wear, but to intergranular spalling and low fracture toughness, which is manifested by transverse cracks or flaking on the ceramic surface, i.e. the blade has been destroyed by cracks and flaking before the ceramic blade has reached its wear life. The utility model provides a technical scheme can prevent that ceramic intercrystalline from peeling off, avoiding producing the crackle, extension product life. The surface of sheath 502 has wearing layer 504, wearing layer 504 accessible build-up welding wear-resistant material forms, also can be through quenching to the sheath 502 surface, the carburization forms, in operation, sheath 502 squeezes the material open, prevent that the material from producing impact, the shearing to ceramic head 503, sheath 502 has improved the fracture toughness of bar scraper 5, the bottom surface and the contact of material isolation layer of ceramic head 503, scrape the material, ceramic head 503 plays the guard action to the bottom of sheath 502, improve the wearability of 5 bottoms of bar scraper, the increase of service life thereof.
The present invention is not limited to the above preferred embodiments, and various changes and modifications can be made within the spirit of the present invention defined by the claims and the description, and the same technical problems can be solved and the intended technical effects can be obtained, so that the description thereof is not repeated. All solutions which can be directly or conceivably obtained by a person skilled in the art from the disclosure of the present invention also belong to the scope of protection of the present invention, as long as they are within the spirit of the present invention as defined by the appended claims.
Claims (4)
1. The utility model provides a scraper device for pelletizer, includes frame (2) of being connected with pelletizer frame (1), at least one set with transmission reduction gears (3) that frame (2) are connected, with scraper mounting bracket (4) that transmission reduction gears (3) lower extreme is connected, a plurality of sets with excellent formula scraper (5) that scraper mounting bracket (4) are connected, its characterized in that, excellent formula scraper (5) including be connected with mounting bracket (4) stick pole (501), with sheath (502), the embedding that stick pole (501) lower extreme is connected ceramic head (503) in sheath (502), the surface of sheath (502) has wearing layer (504).
2. The scraper device for the pelletizer according to claim 1, wherein the transmission speed reduction mechanism (3) comprises a motor (301), a speed reducer (302) in transmission connection with the motor (301), and a bearing box (304) connected with the frame (2), wherein a rotating shaft of the scraper mounting frame (4) is connected with the bearing box (304) through a bearing, and the rotating shaft of the scraper mounting frame (4) is in transmission connection with the speed reducer (302) through a coupling (303).
3. The scraper device for the pelletizer according to claim 1, wherein the transmission reduction mechanism (3) and the mounting frame (4) are at least two sets, and adjacent transmission reduction mechanisms (3) are respectively located on two sides of the frame (2).
4. A disk pelletizer characterized by comprising the pelletizer scraper device according to any one of claims 1 to 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020782078.4U CN212263183U (en) | 2020-05-13 | 2020-05-13 | Scraper device for pelletizer and disc pelletizer with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020782078.4U CN212263183U (en) | 2020-05-13 | 2020-05-13 | Scraper device for pelletizer and disc pelletizer with same |
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| Publication Number | Publication Date |
|---|---|
| CN212263183U true CN212263183U (en) | 2021-01-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020782078.4U Active CN212263183U (en) | 2020-05-13 | 2020-05-13 | Scraper device for pelletizer and disc pelletizer with same |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114412927A (en) * | 2021-12-10 | 2022-04-29 | 萍乡市众邦冶金有限公司 | Locating bearing seat for movable scraper of disc pelletizer |
-
2020
- 2020-05-13 CN CN202020782078.4U patent/CN212263183U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114412927A (en) * | 2021-12-10 | 2022-04-29 | 萍乡市众邦冶金有限公司 | Locating bearing seat for movable scraper of disc pelletizer |
| CN114412927B (en) * | 2021-12-10 | 2024-05-28 | 萍乡市众邦冶金有限公司 | Movable scraper positioning bearing seat of disc pelletizer |
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