CN215917828U - Detachable spiral scraper of vertical scraper discharge centrifuge - Google Patents
Detachable spiral scraper of vertical scraper discharge centrifuge Download PDFInfo
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- CN215917828U CN215917828U CN202121258800.5U CN202121258800U CN215917828U CN 215917828 U CN215917828 U CN 215917828U CN 202121258800 U CN202121258800 U CN 202121258800U CN 215917828 U CN215917828 U CN 215917828U
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Abstract
The utility model provides a but vertical scraper discharge centrifuge's split spiral scraper, belongs to vertical scraper discharge centrifuge equipment technical field for convenient maintenance and reduce cost. The technical scheme is as follows: the scraper main part and the scraper are respectively provided with a cylinder with the same taper, the scraper is sleeved on the upper part of the scraper main part, the top surface center of the scraper main part and the top surface center of the scraper is respectively provided with a shaft hole, the inner wall of the shaft hole is respectively provided with a key groove, the periphery of the shaft hole is respectively provided with a plurality of corresponding through holes, the periphery of the scraper main part and the scraper is respectively welded with a plurality of scraper blades with the same inclination angle, and the upper end of the lower scraper blade of the scraper main part is respectively opposite to the lower end of the upper scraper blade of the scraper. The scraper upper sleeve and the scraper blade are only required to be replaced independently after being worn, so that resource waste is reduced, cost is reduced, and maintenance time is saved.
Description
Technical Field
The utility model relates to a spiral scraper of a vertical scraper discharge centrifuge, belonging to the technical field of vertical scraper discharge centrifuge equipment.
Background
A vertical scraper discharge centrifuge is a main device for dewatering clean coal and coarse coal slime in the coal washing and selecting process. The vertical scraper discharge centrifuge is widely applied in production enterprises due to the advantages of simple and practical structure, reliable operation, strong adaptability and the like. The vertical scraper discharge centrifuge has the defects of multiple wearing parts and high use cost, particularly the abrasion of the scraper is particularly prominent, and analysis shows that the abrasion degrees of different parts of the scraper are different: after the materials enter the centrifuge, a part of the materials pass through the material distribution cone and obtain enough initial speed, and are thrown to the side surface of the upper end of the scraper blade, so that the relative speed is higher, and the part of the scraper blade is seriously eroded and abraded; the other part of the material with insufficient initial speed falls on the front surface of the upper end of the scraper blade to cause erosion and abrasion, so that the upper end of the scraper blade is seriously abraded. Besides the two parts are seriously worn, the materials are attached to the inner surface of the screen basket to be dewatered under the action of centrifugal force, the rotating speed of the scraper is slower than that of the screen basket, the materials attached to the inner surface of the screen basket are scraped by the back surfaces of the scraper blades, the materials and the back surfaces of the scraper blades generate relatively fast relative sliding, and the parts have relatively low speed and are less worn.
Present vertical scraper centrifuge of unloading's spiral scraper is mostly scraper cone and scraper blade welded structure, the cone material is mostly ZG35, the scraper blade material is mostly 45 steel, the wearability of scraper blade is poor, it is low-lived, the side and the front wearing and tearing of scraper blade upper end are great in the use, need in time change, but because cone and scraper blade adopt welded structure, consequently must wholly change the scraper after the wearing and tearing of scraper blade upper end, and other parts of scraper blade are still relatively intact, cause wasting of resources and use cost to increase.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of providing a detachable spiral scraper of a vertical scraper discharging centrifuge, which can independently replace an easily-worn part at the upper end of a scraper blade so as to reduce the use cost and reduce the resource waste.
The technical scheme for solving the technical problems is as follows:
a detachable spiral scraper of a vertical scraper discharging centrifuge comprises a scraper main body, a scraper upper sleeve, a lower scraper blade and an upper scraper blade, wherein the scraper main body and the scraper upper sleeve are respectively cylinders with tapers, the tapers of the cylinders of the scraper main body and the scraper upper sleeve are the same, the height of the cylinder of the scraper upper sleeve is half to one third of the height of the cylinder of the scraper main body, the upper ends of the cylinders of the scraper main body and the scraper upper sleeve are respectively sealed by the top surface of the scraper main body and the top surface of the scraper upper sleeve, the cylinder of the scraper upper sleeve is sleeved on the upper part of the cylinder of the scraper main body, the top surface of the scraper upper sleeve and the top surface of the scraper main body are overlapped and opposite, the centers of the top surface of the scraper upper sleeve and the top surface of the scraper main body are respectively provided with shaft holes, the diameter of the shaft holes is matched with the diameter of a differential screw shaft, and the inner walls of the shaft holes of the top surface of the scraper upper sleeve and the scraper main body are respectively provided with corresponding key grooves for installing the differential screw shaft, the shaft hole periphery of scraper upper cover top surface and scraper main part top surface has a plurality of through-holes that correspond respectively, a plurality of through-holes match relatively with the connecting bolt of differential mechanism screw axis respectively, the outer wall circumference welding of the cylinder of scraper upper cover has a plurality of last scraper blades that have inclination, weld a plurality of lower scraper blades that have inclination on the outer wall circumference that the lower part of the barrel of scraper main part circle does not covered by the scraper upper cover, go up scraper blade and lower scraper blade and encircle scraper upper cover and scraper main part circumference equipartition respectively, go up scraper blade and lower scraper blade's inclination the same, the lower extreme of scraper blade is relative with a plurality of lower scraper blades's of scraper main part upper cover respectively on a plurality of scraper upper covers.
Above-mentioned but split spiral scraper of vertical scraper centrifuge of unloading, the circumference outer wall that the cylinder lower part of scraper main part was not covered by the scraper upper cover is outside protruding, the cylinder wall thickness phase-match of bellied thickness and scraper upper cover, and bellied surface is the same with the cylinder tapering of scraper main part, and a plurality of scraper blade welding down of scraper main part are at bellied surface.
Above-mentioned but vertical scraper centrifuge of unloading's split spiral scraper, main part flange and upper cover flange are connected respectively at scraper main part top surface center and scraper upper cover top surface center, and main part flange is relative with upper cover flange, and shaft hole, keyway and the through-hole on scraper main part top surface and the scraper upper cover top surface are located main part flange and upper cover flange respectively, and main part flange and upper cover flange's shaft hole, keyway and through-hole are connected with the differential mechanism screw axis relatively.
According to the detachable spiral scraper of the vertical scraper discharge centrifuge, the upper surface of the upper cover of the scraper, which is connected with the periphery of the flange, is uniformly provided with the plurality of screw holes, and the plurality of screw holes are respectively opposite to the connecting holes of the material distribution cone.
The utility model has the beneficial effects that:
the spiral scraper adopts a split structure, and the upper part of the scraper main body is sleeved with the upper sleeve of the scraper, so that the scraper can be separated and is convenient to maintain and replace; the top surface of the scraper main body and the top surface of the scraper upper sleeve are respectively connected with the differential screw shaft through the opposite shaft hole, the key groove and the through hole, so that the firm connection is ensured; the scraper main part and the scraper upper sleeve periphery have corresponding scraper blade, can carry out normal operation, and the last scraper blade of scraper upper sleeve can be changed with the scraper upper sleeve together after taking place wearing and tearing.
The scraper main body and the upper scraper sleeve are detachably connected, the easily worn parts are mainly concentrated on the upper scraper blade of the upper scraper sleeve, only the upper scraper sleeve and the upper scraper blade need to be replaced independently after the scraper is worn, the scraper main body and the lower scraper blade can be continuously used, the whole scraper does not need to be replaced, resource waste is greatly reduced, the use cost is reduced, and the maintenance time is saved.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the exploded structure of FIG. 1;
FIG. 3 is a schematic view of the construction of the doctor body;
FIG. 4 is a schematic view of the construction of the doctor blade upper jacket;
fig. 5 is a schematic cross-sectional view of fig. 1.
The figures are labeled as follows: the scraper comprises a scraper main body 1, a scraper upper sleeve 2, a scraper main body top surface 3, a scraper upper sleeve top surface 4, a lower scraper blade 5, an upper scraper blade 6, a protrusion 7, a main body connecting flange 8, an upper sleeve connecting flange 9, a shaft hole 10, a key groove 11, a through hole 12 and a screw hole 13.
Detailed Description
The scraper changes the prior scraper into a detachable structure, the parts which are easy to wear are mainly concentrated on the detachable upper part, and only need to be replaced independently after being worn, thereby achieving the purposes of reducing resource waste and lowering use cost.
The figure shows that the utility model consists of a doctor body 1 and a doctor upper cover 2. Scraper main part 1 and scraper upper cover 2 are tapered cylinder respectively, the cylinder tapering of scraper main part 1 and scraper upper cover 2 is the same, the cylinder height of scraper upper cover 2 is the half of the cylinder height of scraper main part 1, the cylinder upper end of scraper main part 1 and scraper upper cover 2 is sealed by scraper main part top surface 3 and scraper upper cover top surface 4 respectively, the cylinder cover of scraper upper cover 2 is on the cylinder upper portion of scraper main part 1, scraper upper cover top surface 4 and 3 overlap relatively of scraper main part top surface.
The center of the top surface 4 of the upper scraper sleeve and the center of the top surface 3 of the main scraper body are respectively provided with a shaft hole 10, the diameter of the shaft hole 10 is matched with the diameter of a differential screw shaft, the inner walls of the shaft holes 10 of the top surface 4 of the upper scraper sleeve and the top surface 3 of the main scraper body are respectively provided with a corresponding key groove 11 for installing the differential screw shaft, the peripheries of the shaft holes of the top surface 4 of the upper scraper sleeve and the top surface 3 of the main scraper body are respectively provided with a plurality of corresponding through holes 12, and the through holes 12 are respectively matched and opposite to connecting bolts of the differential screw shaft. When the differential mechanism is installed, the differential mechanism spiral shaft is installed in the shaft hole 10, the differential mechanism spiral shaft is fixed by the connecting key, and the spiral scraper is connected with the differential mechanism by the connecting bolt through the through hole 12.
The figure shows that the lower part of the cylinder of the scraper main body 1 is not covered by the outer wall of the circumference of the scraper upper sleeve 2 to form an outward bulge 7, the thickness of the bulge 7 is matched with the wall thickness of the cylinder of the scraper upper sleeve 2, and the outer surface of the bulge 7 has the same taper as that of the cylinder of the scraper main body 1.
The drawing shows that the outer wall circumference welding of the cylinder of scraper upper cover 2 has a plurality of last scraper blade 6 that have inclination, weld a plurality of lower scraper blade 5 that have inclination on the bellied surface in cylinder lower part of scraper main part 1, go up scraper blade 6 and lower scraper blade 5 and encircle the circumference equipartition of scraper upper cover 2 and scraper main part 1 respectively, it is the same with lower scraper blade 5's inclination to go up scraper blade 6, the complete scraper is relatively constituteed respectively with a plurality of lower scraper blade 5's of scraper main part 1 upper end to a plurality of 6 lower extremes of last scraper blade of scraper upper cover 2. The upper scraper blade 6 of the upper scraper sleeve 2 can be replaced together with the upper scraper sleeve 2 after being worn, and the scraper main body 1 and the lower scraper blade 5 can be continuously used without replacing the whole scraper.
The center of the top surface 3 of the scraper main body and the center of the top surface 4 of the upper sleeve of the scraper are respectively provided with a main body connecting flange 8 and an upper sleeve connecting flange 9, the main body connecting flange 8 and the upper sleeve connecting flange 9 are respectively of an integral casting structure on the top surface 3 of the scraper main body and the top surface 4 of the upper sleeve of the scraper, the main body connecting flange 8 is opposite to the upper sleeve connecting flange 9, the shaft holes 10, the key grooves 11 and the through holes 12 on the top surfaces 3 and 4 of the scraper main body and the upper sleeve of the scraper are respectively positioned on the main body connecting flange 8 and the upper sleeve connecting flange 9, and the shaft holes 10, the key grooves 11 and the through holes 12 of the main body connecting flange 8 and the upper sleeve connecting flange 9 are oppositely connected with a differential screw shaft.
The figure shows that a plurality of screw holes 13 are uniformly distributed on the circumference of the upper surface of the top surface 4 of the upper scraper sleeve, which is connected with the periphery of the flange 9, and the screw holes 13 are respectively opposite to the connecting holes of the material distributing cone.
The using process of the utility model is as follows:
sleeving a scraper upper sleeve 2 on the upper part of a scraper main body 1, overlapping and oppositely arranging a scraper upper sleeve top surface 4 and a scraper main body top surface 3, rotating the scraper upper sleeve 2 to enable the upper ends of a plurality of lower scraper blades 5 of the scraper main body 1 to be respectively opposite to the lower ends of a plurality of upper scraper blades 6 of the scraper upper sleeve 2, and enabling shaft holes 10, key grooves 11 and through holes 12 of the scraper main body 1 and the scraper upper sleeve 2 to be opposite one to one;
connecting the well-sleeved scraper main body 1 and the scraper upper sleeve 2 with a differential screw shaft, wherein the screw shaft penetrates through opposite shaft holes 10 of a main body connecting flange 8 and an upper sleeve connecting flange 9, a C-shaped key is inserted into a key groove 11, and the scraper main body 1 and the scraper upper sleeve 2 are fastened on the differential screw shaft by a connecting bolt through a through hole 12;
the screw hole 13 on the top surface 4 of the upper scraper sleeve is connected with the connecting hole of the material distributing cone through a bolt;
in use, the last scraper blade 6 of 2 circumference on the scraper upper cover is the easy wearing and tearing part, after the degree of wear reaches the degree that needs to be changed, hang out scraper upper cover 6 after tearing connecting bolt open, change scraper upper cover 6 alone, scraper main part 1 can continue to use with lower scraper blade 5, need not to dismantle whole spiral scraper, and need not to change whole spiral scraper, the manufacturing cost of wearing parts has been reduced, the wasting of resources has been reduced, the operation cost of coal washery has been reduced, the overhaul of the equipments time has been practiced thrift.
One embodiment of the utility model is as follows:
the diameter of the lower bottom surface of the scraper main body 1 is 900mm, the diameter of the top surface 3 of the scraper main body is 360mm, and the height is 430 mm;
the diameter of the lower bottom surface of the main body connecting flange 8 is 240mm, the diameter of the upper bottom surface is 360mm, and the height is 55 mm;
the diameter of the lower bottom surface of the upper scraper sleeve 2 is 360mm, the diameter of the top surface 4 of the upper scraper sleeve is 380mm, and the height is 25 mm;
the diameter of the lower bottom surface of the upper sleeve connecting flange 9 is 268mm, the diameter of the upper bottom surface is 242mm, and the height is 20 mm;
the diameter of the shaft hole 10 is 122 mm;
the width of the key groove 11 is 36mm, and the depth is 100 mm;
the diameter of the through hole 12 is 24 mm;
the screw hole 13 is M16;
the thickness of the lower scraper blade 5 is 20mm, the length is 615mm, and the width of the upper end is 126 mm;
the upper blade 6 had a thickness of 20mm, a length of 406mm and an upper end width of 126 mm.
Claims (4)
1. The utility model provides a but vertical scraper discharge centrifuge's split spiral scraper which characterized in that: the scraper comprises a scraper main body (1), a scraper upper sleeve (2), lower scraper blades (5) and upper scraper blades (6), wherein the scraper main body (1) and the scraper upper sleeve (2) are respectively cylinders with tapers, the tapers of the cylinders of the scraper main body (1) and the scraper upper sleeve (2) are the same, the height of the cylinder of the scraper upper sleeve (2) is one half to one third of the height of the cylinder of the scraper main body (1), the upper ends of the cylinders of the scraper main body (1) and the scraper upper sleeve (2) are respectively sealed by a scraper main body top surface (3) and a scraper upper sleeve top surface (4), the cylinder of the scraper upper sleeve (2) is sleeved on the upper part of the cylinder of the scraper main body (1), the scraper upper sleeve top surface (4) and the scraper main body top surface (3) are overlapped and opposite, the centers of the scraper upper sleeve top surface (4) and the scraper main body top surface (3) are respectively provided with a shaft hole (10), and the diameter of the shaft hole is matched with the diameter of a spiral shaft, the inner walls of shaft holes of the top surface (4) of the upper scraper sleeve and the top surface (3) of the main scraper body are respectively provided with a corresponding key groove (11) for mounting a differential screw shaft, the peripheries of the shaft holes (10) of the top surface (4) of the upper scraper sleeve and the top surface (3) of the main scraper body are respectively provided with a plurality of corresponding through holes (12), the through holes (12) are respectively matched and opposite to connecting bolts of the differential screw shaft, the circumference of the outer wall of the cylinder of the upper scraper sleeve (2) is welded with a plurality of upper scraper blades (6) with inclined angles, the circumference of the outer wall of the lower part of the cylinder of the main scraper body (1) which is not covered by the upper scraper sleeve (2) is welded with a plurality of lower scraper blades (5) with inclined angles, the upper scraper blades (6) and the lower scraper blades (5) are respectively uniformly distributed around the circumferences of the upper scraper sleeve (2) and the main scraper body (1), and the inclined angles of the upper scraper blades (6) and the lower scraper blades (5) are the same, the lower ends of a plurality of upper scraper blades (6) of the scraper upper sleeve (2) are respectively opposite to the upper ends of a plurality of lower scraper blades (5) of the scraper main body (1).
2. The detachable spiral scraper blade of a vertical scraper discharge centrifuge according to claim 1, wherein: the circumference outer wall that the cylinder lower part of scraper main part (1) was not covered by scraper upper cover (2) is outside arch (7), and the thickness of arch (7) and the cylinder wall thickness phase-match of scraper upper cover (2), and the surface of arch (7) is the same with the cylinder tapering of scraper main part (1), and a plurality of scraper blade (5) welding down of scraper main part (1) are at the surface of arch (7).
3. The detachable spiral scraper blade of a vertical scraper discharge centrifuge according to claim 1, wherein: the scraper main body top surface center and the scraper upper cover top surface center have main part flange (8) and upper cover flange (9) respectively, main part flange (8) and upper cover flange (9) are relative, shaft hole (10) on scraper main body top surface (3) and the scraper upper cover top surface (4), keyway (11) and through-hole (12) are located main part flange (8) and upper cover flange (9) respectively, shaft hole (10) of main part flange (8) and upper cover flange (9), keyway (11) and through-hole (12) are connected with the differential mechanism screw axis relatively.
4. The detachable spiral scraper blade of vertical scraper discharge centrifuge of claim 3, wherein: the upper sleeve is connected with the periphery of the flange (9), a plurality of screw holes (13) are uniformly distributed on the circumference of the upper surface of the upper sleeve top surface (4) of the scraper, and the screw holes (13) are respectively opposite to the connecting holes of the material distributing cone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121258800.5U CN215917828U (en) | 2021-06-07 | 2021-06-07 | Detachable spiral scraper of vertical scraper discharge centrifuge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121258800.5U CN215917828U (en) | 2021-06-07 | 2021-06-07 | Detachable spiral scraper of vertical scraper discharge centrifuge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215917828U true CN215917828U (en) | 2022-03-01 |
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ID=80402288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121258800.5U Active CN215917828U (en) | 2021-06-07 | 2021-06-07 | Detachable spiral scraper of vertical scraper discharge centrifuge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215917828U (en) |
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2021
- 2021-06-07 CN CN202121258800.5U patent/CN215917828U/en active Active
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