CN110665647A - Scraper centrifuge - Google Patents
Scraper centrifuge Download PDFInfo
- Publication number
- CN110665647A CN110665647A CN201911015599.5A CN201911015599A CN110665647A CN 110665647 A CN110665647 A CN 110665647A CN 201911015599 A CN201911015599 A CN 201911015599A CN 110665647 A CN110665647 A CN 110665647A
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- Prior art keywords
- bearing
- assembly
- scraper
- cover
- joint
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- 238000007599 discharging Methods 0.000 claims abstract description 16
- 238000001914 filtration Methods 0.000 claims abstract description 7
- 238000005406 washing Methods 0.000 claims description 11
- 125000006850 spacer group Chemical group 0.000 claims description 10
- 239000004744 fabric Substances 0.000 claims description 6
- 230000001050 lubricating effect Effects 0.000 claims description 3
- 230000035939 shock Effects 0.000 claims description 3
- 239000003921 oil Substances 0.000 claims 6
- 239000010687 lubricating oil Substances 0.000 claims 1
- 238000013461 design Methods 0.000 abstract description 9
- 238000000926 separation method Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 9
- 239000007788 liquid Substances 0.000 description 8
- 239000012065 filter cake Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000007790 solid phase Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000007665 sagging Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B1/00—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B11/00—Feeding, charging, or discharging bowls
- B04B11/04—Periodical feeding or discharging; Control arrangements therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B11/00—Feeding, charging, or discharging bowls
- B04B11/08—Skimmers or scrapers for discharging ; Regulating thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B7/00—Elements of centrifuges
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
- F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
- F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B11/00—Feeding, charging, or discharging bowls
- B04B11/08—Skimmers or scrapers for discharging ; Regulating thereof
- B04B2011/088—Skimmers or scrapers for discharging ; Regulating thereof with angularly and axially offset scrapers
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Centrifugal Separators (AREA)
Abstract
The invention discloses a scraper centrifuge, which comprises a base assembly, wherein the base assembly is connected with a bearing assembly, the bearing assembly is arranged in a filtering assembly, and the upper end of the filtering assembly is provided with a cover assembly; the bearing assembly comprises a main shaft and a bearing frame, a first bearing, a second bearing and a third bearing are respectively arranged between the main shaft and the bearing frame from top to bottom, a gap groove is formed in a bearing outer ring of the third bearing, a lower cover is arranged at the lower end of the third bearing, a positioning pin is arranged on the lower cover, the other end of the positioning pin is arranged in the gap groove, and the lower cover is movably connected with the bearing frame; the cover assembly comprises a discharging assembly, the cover assembly comprises a stand column, an oil cylinder is arranged at the other end of the stand column, a joint is arranged at the other end of the oil cylinder, a rotating arm is movably arranged in the joint, the rotating arm is movably provided with the upper end of a scraper frame, a scraper blade is movably arranged on the scraper frame, and the length of the scraper blade is matched with the height of an inner arm of the rotary drum. The invention has the advantages of ingenious design, convenient use and maintenance, good separation effect and high efficiency, and reduces the subsequent cost for enterprises.
Description
Technical Field
The invention relates to the field of manufacturing and application of centrifuges, in particular to a scraper centrifuge.
Background
The working principle of the scraper centrifuge is that a motor drives a rotary drum to rotate, when the feeding speed state is reached, materials to be separated enter the rotary drum rotating at a high speed through a feeding pipe, the feeding stops after reaching a preset volume, the materials are lifted to high-speed separation, the materials are filtered through a filter cloth (filter screen) under the action of centrifugal force, a liquid phase passes through a filter layer rotary drum hole and is thrown to a cavity to be discharged through a liquid outlet pipe, a solid phase is intercepted in the rotary drum to form a barrel-shaped filter cake, then the filter cake can be washed, after the separation requirement is reached, the rotating speed is reduced to the unloading speed state, a scraper device acts to scrape the filter cake from the inner wall of the rotary drum and discharge the filter. It is suitable for solid-liquid separation of suspension containing fine-grained and medium-grained solid phases, and also for solid-liquid separation of fibrous materials.
Current centrifuges include a cover, a base, a filter assembly, and a bearing assembly. The stabilization of the bearing assembly directly affects the dewatering effect of the drum assembly in the filter device, and thus the stability of the whole equipment. The existing centrifuge main shaft is generally fixed by adopting the upper end and the lower end of three bearings, wherein one bearing on the upper part bears radial force, one bearing on the lower part bears radial force, and the other bearing bears bearing force, the three bearings are simultaneously used for fixing an inner ring and an outer ring through a bearing seat and a main shaft, the requirement on the processing precision of the bearing seat and the main shaft is higher, and meanwhile, the phenomenon of over-positioning exists in the positioning mode of the three bearings. The existing discharging device of the vertical centrifuge adopts a narrow scraper mode, so that the discharging efficiency is low and the structure is complex.
Disclosure of Invention
The scraper centrifuge is ingenious in design, convenient to use and maintain, good in separation effect and high in efficiency, and reduces subsequent cost for enterprises.
In order to realize the purpose, the invention adopts the technical scheme that: the filter assembly comprises a base assembly, wherein the base assembly is connected with a bearing assembly, the bearing assembly is arranged in a filter assembly, and the upper end of the filter assembly is provided with a cover assembly; the bearing assembly comprises a main shaft and a bearing frame, a first bearing, a second bearing and a third bearing are respectively arranged between the main shaft and the bearing frame from top to bottom, the third bearing is a four-point angular contact ball bearing, a bearing outer ring of the third bearing is provided with a notch groove, the lower end of the third bearing is provided with a lower cover, the lower cover is connected with the main shaft through a lower wear-resisting ring, a positioning pin is arranged on the lower cover, the other end of the positioning pin is arranged in the notch groove, and the lower cover is movably connected with the bearing frame; the cover assembly comprises an unloading assembly which is arranged on the cover, the unloading assembly comprises a stand column, the other end of the stand column is provided with an oil cylinder, the other end of the oil cylinder is provided with a joint, a rotating arm is arranged in the joint in an movable mode, the rotating arm is movably provided with the upper end of a scraper frame, the scraper frame is movably inserted into the cover through a supporting seat, a scraper blade is movably arranged on the scraper frame, and the length of the scraper blade is matched with the height of an inner arm of the rotary drum.
Furthermore, 2 notch grooves are formed, and the cross section of each notch groove is triangular.
Further, a first oil seal is arranged between the lower cover and the lower wear-resistant ring; the circumference of the lower cover is provided with a connecting hole movably connected with the bearing frame, and a bolt is arranged in the connecting hole; the upper end and the lower end of the first bearing are respectively provided with an upper cover and an upper bushing; the upper cover is connected with the main shaft through an upper wear-resistant ring; the upper cover is provided with a second oil seal through the upper wear-resistant ring, and the second oil seal is provided with an oil seal cover plate.
Further, a bearing inner spacer ring is arranged between the second bearing and the third bearing, a bearing outer spacer ring is arranged on the periphery of the bearing inner spacer ring, and a lower bushing is arranged at the upper end of the second bearing.
Further, the upper end of the main shaft is respectively connected with a round nut and a hydraulic nut, and a nut cover is arranged on the round nut; the lower extreme of main shaft is provided with first belt pulley, is provided with the clamp plate between main shaft and the belt pulley.
Furthermore, the joint is U-shaped, a rotating arm is inserted in the joint, a joint shaft is inserted in the rotating arm through a first bearing, a bearing cover is arranged at the upper end of the first bearing, the joint shaft is movably arranged at the side end of the joint, the bearing cover is connected with the rotating arm through a first screw, and the joint shaft is connected with the joint through a second screw.
Further, the scraper support comprises a scraper shaft, a scraper shaft sleeve is arranged at the lower middle end of the scraper shaft, an upper inner supporting rod and a lower inner supporting rod are respectively arranged at the other end of the scraper shaft, and the upper inner supporting rod and the lower inner supporting rod are respectively connected with the scraper blade fixing plate through an upper outer supporting rod and a lower outer supporting rod; an upper shaft sleeve and a lower shaft sleeve are arranged between the scraper shaft and the supporting seat, a fifth bearing is arranged at the upper end of the upper shaft sleeve, and a bushing is arranged at the upper end of the fifth bearing; the scraper blade is connected with the scraper blade fixing plate through a bolt; the knife point of the scraper blade forms a certain included angle.
Further, the base assembly comprises a motor arranged on the bottom plate shell assembly, and the motor is connected with a first belt pulley of the bearing assembly through a second belt pulley and a V belt; belt shields are arranged on the first belt pulley and the second belt pulley; the upper end and the lower end of the bottom plate shell assembly are respectively provided with a hanging ring and a shock isolator; a lubrication tube assembly is provided on the bottom plate housing assembly for lubricating the bearing assembly.
Furthermore, the filtering component comprises a rotary drum, a tensioning ring is arranged at the upper end of the rotary drum, and filtering cloth and a supporting lining net are arranged on the inner side of the rotary drum through a self-locking binding belt.
Further, the machine cover comprises a cylinder body, the upper end of the cylinder body is respectively provided with a cover plate, a manhole is arranged on the cover plate, the cylinder body is provided with a feeding pipe, and the feeding pipe is divided into a long feeding pipe and a short feeding pipe; the barrel is also provided with a rotary drum washing pipe, a washing pipe and a side washing pipe respectively.
The invention has the beneficial effects that:
1. the scraper centrifuge provided by the invention is ingenious in design, and due to the design of the bearing assembly and the discharging assembly, the whole device is stable and firm in structure, convenient to use and maintain, good in separating effect, quick in discharging and high in efficiency, and the subsequent cost of an enterprise is reduced.
2. The bearing assembly is ingenious in design and simple in structure, the notch groove is formed in the outer ring of the bearing, the outer ring of the bearing is effectively prevented from not rotating through positioning of the positioning pin, the spindle and the rotary drum can be prevented from sagging, the use and the maintenance are convenient, and the inventiveness is strong; the design of breach groove is 2, and the cross sectional shape in breach groove is triangle-shaped, and such structural design not only the location is accurate, and processing is also convenient, has improved production efficiency.
3. The joint in the discharging assembly is in a U shape, the rotating arm is inserted in the joint, the joint shaft is inserted in the rotating arm through the first bearing, the bearing cover is arranged at the upper end of the first bearing, and the joint shaft is movably arranged at the side end of the joint.
4. The scraper support in the discharging assembly comprises a scraper shaft, a scraper shaft sleeve is arranged at the lower middle end of the scraper shaft, an upper inner supporting rod and a lower inner supporting rod are respectively arranged at the other end of the scraper shaft, and the upper inner supporting rod and the lower inner supporting rod are respectively connected with the scraper blade fixing plate through the upper outer supporting rod and the lower outer supporting rod.
5. The oil cylinder in the discharging assembly is not connected with an oil supply station, compressed air is pressed into the piston of the conversion device, the piston applies force generated by the compressed air to liquid oil, so that the force of the liquid oil is amplified, and the liquid oil is conveyed into the oil cylinder in the discharging assembly, so that gas-liquid conversion is achieved.
6. The feeding pipes in the invention enable the materials in the rotary drum to be fully distributed, the films and the materials are overflowed by means of overflow, and the feeding pipes are arranged above and below the feeding pipes to be more uniform.
Drawings
Fig. 1 is a front view of the structure of the present invention.
FIG. 2 is a top view of the structure of the present invention.
FIG. 3 is a schematic view of a bearing assembly of the present invention.
Fig. 4 is an enlarged schematic view of C in fig. 3.
Figure 5 is a front view of the discharge assembly of the present invention.
Figure 6 is a top view of the discharge assembly of the present invention.
Fig. 7 is a schematic structural view of a scraper holder of the discharge assembly of the present invention.
Fig. 8 is a schematic structural view of a scraper of the discharging assembly in the invention.
Fig. 9 is a front view of the base assembly of the present invention.
Fig. 10 is a top view of the base assembly of the present invention.
Fig. 11 is a front view of a filter assembly of the present invention.
Fig. 12 is a cross-sectional view taken at X-X in fig. 11.
The text labels in the figures are represented as: 1. a bearing assembly; 1-1, nut cover; 1-2, round nuts; 1-3, hydraulic nuts; 1-4, a main shaft; 1-5, wear-resistant ring; 1-6, oil seal cover plate; 1-7, an upper cover; 1-8, a bearing frame; 1-9, an upper bushing; 1-10, lower liner; 1-11 parts of a bearing inner spacer; 1-12, bearing outer space ring; 1-13, a lower cover; 1-14, a lower wear ring; 1-15, a first belt pulley; 1-16, pressing plate; 1-17, a first oil seal; 1-18, positioning pins; 1-19, a third bearing; 1-19-1, a notch groove; 1-20, a second bearing; 1-21, a first bearing; 1-22, a second oil seal; 2. a stand assembly; 2-1, a motor; 2-2, V band; 2-3, a second belt pulley; 2-4, a hanging ring; 2-5, a belt shield; 2-6, an oil pipe assembly; 2-7, a vibration isolator; 2-8, a bottom plate enclosure assembly; 3. a filter assembly; 3-1, a tension ring; 3-2, supporting and lining net; 3-3, filtering cloth; 3-4, rotating the drum; 3-5, self-locking ribbon; 4. a cover assembly; 4-1, a machine cover; 4-1-1, short feeding pipe; 4-1-2, long feed pipe; 4-1-3, drum flushing pipe; 4-1-4, washing pipe; 4-1-5, a manhole; 4-1-6, cover plate; 4-1-7, side washing tube; 4-1-8, cylinder; 4-2, a discharging component; 4-2-1, upright column; 4-2-2, rib plates; 4-2-3, a fifth bearing; 4-2-4, an upper shaft sleeve; 4-2-5, a supporting seat; 4-2-6, oil cylinder; 4-2-7, a linker; 4-2-8, a first screw; 4-2-9, a second screw; 4-2-10 and a fourth bearing; 4-2-11, joint axis; 4-2-12, a retainer ring for a shaft; 4-2-13, bearing cap; 4-2-14, a scraper frame; 4-2-15, a doctor blade; 4-2-16, a rotating arm; 4-2-17, a liner; 4-2-18, lower shaft sleeve; 4-2-14-1, a scraper shaft; 4-2-14-2, scraper shaft sleeve; 4-2-14-3, an upper inner support rod; 4-2-14-4, lower inner supporting rod; 4-2-14-5, upper outer supporting rods; 4-2-14-6, lower outer support rods; 4-2-14-7 and a scraper blade fixing plate.
Detailed Description
The following detailed description of the present invention is given for the purpose of better understanding technical solutions of the present invention by those skilled in the art, and the present description is only exemplary and explanatory and should not be construed as limiting the scope of the present invention in any way.
As shown in fig. 1 to 12, the specific structure of the present invention is: the filter assembly comprises a base assembly 2, wherein the base assembly 2 is connected with a bearing assembly 1, the bearing assembly 1 is arranged in a filter assembly 3, and a cover assembly 4 is arranged at the upper end of the filter assembly 3; the bearing assembly 1 comprises main shafts 1-4 and bearing frames 1-8, first bearings 1-21, second bearings 1-20 and third bearings 1-19 are respectively arranged between the main shafts 1-4 and the bearing frames 1-8 from top to bottom, the third bearings 1-19 are four-point angular contact ball bearings, the outer rings of the third bearings 1-19 are provided with notch grooves 1-19-1, the lower ends of the third bearings 1-19 are provided with lower covers 1-13, the lower covers 1-13 are connected with the main shafts 1-4 through lower wear-resistant rings 1-14, the lower covers 1-13 are provided with positioning pins 1-18, the other ends of the positioning pins 1-18 are arranged in the notch grooves 1-19-1, and the lower covers 1-13 are movably connected with the bearing frames 1-8; the cover assembly 4 comprises a discharging assembly 4-2 arranged on a cover 4-1, the discharging assembly 4-2 comprises an upright post 4-2-1, a rib plate 4-2-2 is arranged between the upright post 4-2-1 and the cover 4-1, an oil cylinder 4-2-6 is arranged at the other end of the upright post 4-2-1, a joint 4-2-7 is arranged at the other end of the oil cylinder 4-2-6, a rotating arm 4-2-16 is movably arranged in the joint 4-2-7, the rotating arm 4-2-16 is movably provided with the upper end of a scraper frame 4-2-14, the scraper frame 4-2-14 is movably inserted in the cover 4-1 through a supporting seat 4-2-5, a scraper blade 4-2-15 is movably arranged on the scraper frame 4-2-14, the length of the doctor blades 4-2-15 is adapted to the height of the inner arms of the drum.
As shown in fig. 3 to 4, 2 notch grooves 1-19-1 are provided, and the cross-sectional shape of the notch grooves 1-19-1 is triangular.
As shown in fig. 3, a first oil seal 1-17 is arranged between the lower cover 1-13 and the lower wear-resistant ring 1-14; the circumference of the lower cover 1-13 is provided with a connecting hole which is movably connected with the bearing frame 1-8, and a bolt is arranged in the connecting hole; the upper end and the lower end of the first bearing 1-21 are respectively provided with an upper cover 1-7 and an upper bushing 1-9; the upper cover 1-7 is connected with the main shaft 1-4 through an upper wear-resistant ring 1-5; the upper cover 1-7 is provided with a second oil seal 1-22 through the upper wear-resistant ring 1-5, and the second oil seal 1-22 is provided with an oil seal cover plate 1-6.
As shown in figure 3, a bearing inner spacer ring 1-11 is arranged between the second bearing 1-20 and the third bearing 1-19, a bearing outer spacer ring 1-12 is arranged on the periphery of the bearing inner spacer ring 1-11, and a lower bushing 1-10 is arranged at the upper end of the second bearing 1-20.
As shown in fig. 3-4, the upper end of the main shaft 1-4 is respectively connected with a round nut 1-2 and a hydraulic nut 1-3, and the round nut 1-2 is provided with a nut cover 1-1; the lower end of the main shaft 1-4 is provided with a first belt pulley 1-15, and a pressure plate 1-16 is arranged between the main shaft 1-4 and the first belt pulley 1-15.
As shown in fig. 5-8, the joint 4-2-7 is in a U shape, the swivel arm 4-2-16 is inserted into the joint 4-2-7, the joint shaft 4-2-11 is inserted into the swivel arm 4-2-16 through the fourth bearing 4-2-10, the upper end of the fourth bearing 4-2-10 is provided with a bearing cap 4-2-13, the joint shaft 4-2-11 is movably arranged at the side end of the joint 4-2-7, the bearing cap 4-2-13 is connected with the swivel arm 4-2-16 through the first screw 4-2-8, and the joint shaft 4-2-11 is connected with the joint 4-2-7 through the second screw 4-2-9.
As shown in fig. 7-8, the scraper frame 4-2-14 includes a scraper shaft 4-2-14-1, a scraper shaft sleeve 4-2-14-2 is disposed at the lower middle end of the scraper shaft 4-2-14-1, an upper inner support bar 4-2-14-3 and a lower inner support bar 4-2-14-4 are disposed at the other end of the scraper shaft 4-2-14-1, and the upper inner support bar 4-2-14-3 and the lower inner support bar 4-2-14-4 are connected to the scraper fixing plate 4-2-14-7 through an upper outer support bar 4-2-14-5 and a lower outer support bar 4-2-14-6, respectively; an upper shaft sleeve 4-2-4 and a lower shaft sleeve 4-2-18 are arranged between the scraper shaft 4-2-14-1 and the supporting seat 4-2-5, a fifth bearing 4-2-3 is arranged at the upper end of the upper shaft sleeve 4-2-4, and a bushing 4-2-17 is arranged at the upper end of the fifth bearing 4-2-3; the scraper blade 4-2-15 is connected with a scraper blade fixing plate 4-2-14-7 through a bolt; the knife tip of the scraper blade 4-2-15 forms an included angle of 35 degrees, so that the structure design structure is firm, the manufacturing process is simple, and the production cost is reduced.
As shown in fig. 9-10, the base assembly 2 includes a motor 2-1 disposed on the bottom chassis assembly 2-8, the motor 2-1 being connected to a first pulley 1-15 of the bearing assembly 1 via a second pulley 2-3, a V-belt 2-2; belt shields 2-5 are arranged on the first belt pulley 1-15 and the second belt pulley 2-3; the upper end and the lower end of the bottom plate shell component 2-8 are respectively provided with a lifting ring 2-4 and a shock isolator 2-7; the bottom plate housing assembly 2-8 is provided with a lubrication pipe assembly 2-6 for lubricating the bearing assembly 1.
As shown in figures 11-12, the filter assembly 3 comprises a rotary drum 3-4, the upper end of the rotary drum 3-4 is provided with a tension ring 3-1, and the inner side of the rotary drum 3-4 is provided with a filter cloth 3-3 and a supporting lining net 3-2 through a self-locking binding belt 3-5.
As shown in fig. 13-14, the cover 4-1 comprises a cylinder 4-1-8, the upper ends of the cylinder 4-1-8 are respectively provided with a cover plate 4-1-6, the cover plate 4-1-6 is provided with a manhole 4-1-5, the cylinder 4-1-8 is provided with a feeding pipe, and the feeding pipe is divided into a long feeding pipe 4-1-2 and a short feeding pipe 4-1-1; the barrel 4-1-8 is also respectively provided with a rotary drum washing pipe 4-1-3, a washing pipe 4-1-4 and a side washing pipe 4-1-7.
The working principle is as follows: materials enter the rotary drum 3-4 from the long feeding pipe 4-1-2 and the short feeding pipe 4-1-1 on the cover component 4, the rotary drum 3-4 is driven by the motor 2-1 to rotate, when the feeding rotating speed state is reached, the material to be separated enters the high-speed rotating drum through the feeding pipe, the feeding is stopped after the feeding reaches the preset volume, the material is lifted to high-speed separation, under the action of centrifugal force, the materials are filtered through the filter cloth on the rotary drum 3-4, the liquid phase passes through the holes on the filter layer rotary drum 3-4 and is thrown to the cavity to be discharged through the liquid outlet pipe, the solid phase is intercepted in the rotary drum 3-4 to form a cylindrical filter cake, then the filter cake can be washed to meet the separation requirement, when the rotating speed is reduced to the unloading rotating speed state, the scraper blade 4-2-15 device in the unloading assembly 4-2 acts to scrape the filter cake from the inner wall of the rotary drum 3-4 and discharge the filter cake through a discharge hole at the lower part of the centrifuge.
The working principle of the discharging assembly 4-2 is as follows: by starting the oil cylinder 4-2-6, when the oil cylinder 4-2-6 is extended or shortened, the angle of the rotating arm 4-2-16 is changed, and the length of the scraper blade 4-2-15 is matched with the height of the inner arm of the rotary drum, so that the quick cleaning structure of the substances remained in the rotary drum is simple and compact, the use is convenient and fast, the substances remained in the rotary drum are quickly cleaned by the angle change of the scraper blade 4-2-15, the labor intensity is greatly reduced, the working efficiency is improved, the separation effect is good, and the quality of the separated substances is improved.
The third bearings 1-19 in the bearing assembly 1 mainly bear axial force, the outer rings of the third bearings 1-19 are provided with the notch grooves 1-19-1, and the positioning pins 1-18 are arranged at the positions of the notch grooves 1-19-1, so that the outer rings of the bearings can be prevented from rotating, the spindle and the rotary drum can be prevented from sagging, and the stability of the whole machine equipment is improved. 2 notch grooves 1-19-1 are arranged, and the cross section of the notch grooves 1-19-1 is triangular, so that the structural design is accurate in positioning and convenient to process, and the production efficiency is improved.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts of the present invention. The foregoing is only a preferred embodiment of the present invention, and it should be noted that there are objectively infinite specific structures due to the limited character expressions, and it will be apparent to those skilled in the art that a plurality of modifications, decorations or changes may be made without departing from the principle of the present invention, and the technical features described above may be combined in a suitable manner; such modifications, variations, combinations, or adaptations of the invention using its spirit and scope, as defined by the claims, may be directed to other uses and embodiments.
Claims (10)
1. A scraper centrifuge comprises a base assembly (2), and is characterized in that the base assembly (2) is connected with a bearing assembly (1), the bearing assembly (1) is arranged in a filtering assembly (3), and the upper end of the filtering assembly (3) is provided with a cover assembly (4); the bearing assembly (1) comprises a main shaft (1-4) and a bearing frame (1-8), and is characterized in that a first bearing (1-21), a second bearing (1-20) and a third bearing (1-19) are respectively arranged between the main shaft (1-4) and the bearing frame (1-8) from top to bottom, the third bearing (1-19) is a four-point angular contact ball bearing, a notched groove (1-19-1) is arranged on the outer ring of the bearing of the third bearing (1-19), a lower cover (1-13) is arranged at the lower end of the third bearing (1-19), the lower cover (1-13) is connected with the main shaft (1-4) through a lower wear-resistant ring (1-14), a positioning pin (1-18) is arranged on the lower cover (1-13), the other end of the positioning pin (1-18) is arranged in the notched groove (1-19-1), the lower cover (1-13) is movably connected with the bearing frame (1-8); the cover assembly (4) comprises a discharging assembly (4-2) arranged on the cover (4-1), the discharging assembly (4-2) comprises an upright post (4-2-1), an oil cylinder (4-2-6) is arranged at the other end of the upright post (4-2-1), a joint (4-2-7) is arranged at the other end of the oil cylinder (4-2-6), a rotating arm (4-2-16) is movably arranged in the joint (4-2-7), the rotating arm (4-2-16) is movably provided with the upper end of a scraper frame (4-2-14), the scraper frame (4-2-14) is movably inserted in the cover (4-1) through a supporting seat (4-2-5), a scraper blade (4-2-15) is movably arranged on the scraper frame (4-2-14), the length of the scraper blade (4-2-15) is adapted to the height of the inner arm of the drum.
2. A scraper centrifuge according to claim 1, characterized in that there are 2 of the relief grooves (1-19-1), the relief grooves (1-19-1) having a triangular cross-sectional shape.
3. A scraper centrifuge according to claim 1, characterized in that a first oil seal (1-17) is provided between the lower cover (1-13) and the lower wear ring (1-14); the circumference of the lower cover (1-13) is provided with a connecting hole which is movably connected with the bearing frame (1-8), and a bolt is arranged in the connecting hole; the upper end and the lower end of the first bearing (1-21) are respectively provided with an upper cover (1-7) and an upper bushing (1-9); the upper cover (1-7) is connected with the main shaft (1-4) through an upper wear-resistant ring (1-5); the upper cover (1-7) is provided with a second oil seal (1-22) through the upper wear-resistant ring (1-5), and the second oil seal (1-22) is provided with an oil seal cover plate (1-6).
4. A scraper centrifuge according to claim 1, characterized in that an inner bearing spacer (1-11) is arranged between the second bearing (1-20) and the third bearing (1-19), that an outer bearing spacer (1-12) is arranged on the outer circumference of the inner bearing spacer (1-11), and that the upper end of the second bearing (1-20) is provided with a lower bushing (1-10).
5. The scraper centrifuge as claimed in claim 1, wherein the upper end of the main shaft (1-4) is connected with a round nut (1-2) and a hydraulic nut (1-3), respectively, and a nut cover (1-1) is arranged on the round nut (1-2); the lower end of the main shaft (1-4) is provided with a first belt pulley (1-15), and a pressure plate (1-16) is arranged between the main shaft (1-4) and the first belt pulley (1-15).
6. A scraper centrifuge according to claim 1, characterized in that the joint (4-2-7) is arranged in a U-shape, the rotating arm (4-2-16) is inserted in the joint (4-2-7), the joint shaft (4-2-11) is inserted in the rotating arm (4-2-16) through the fourth bearing (4-2-10), the upper end of the fourth bearing (4-2-10) is provided with a bearing cap (4-2-13), the joint shaft (4-2-11) is movably arranged at the side end of the joint (4-2-7), the bearing cap (4-2-13) is connected with the rotating arm (4-2-16) through the first screw (4-2-8), and the joint shaft (4-2-11) and the joint (4-2-7) are connected through the second screw (4-2-) 9) And (4) connecting.
7. A scraper centrifuge according to claim 1, characterized in that the scraper holder (4-2-14) comprises a scraper shaft (4-2-14-1), the lower middle end of the scraper shaft (4-2-14-1) is provided with a scraper shaft sleeve (4-2-14-2), the other end of the scraper shaft (4-2-14-1) is provided with an upper inner support bar (4-2-14-3) and a lower inner support bar (4-2-14-4) respectively, the upper inner supporting rod (4-2-14-3) and the lower inner supporting rod (4-2-14-4) are respectively connected with the scraper blade fixing plate (4-2-14-7) through the upper outer supporting rod (4-2-14-5) and the lower outer supporting rod (4-2-14-6); an upper shaft sleeve (4-2-4) and a lower shaft sleeve (4-2-18) are arranged between the scraper shaft (4-2-14-1) and the supporting seat (4-2-5), a fifth bearing (4-2-3) is arranged at the upper end of the upper shaft sleeve (4-2-4), and a bushing (4-2-17) is arranged at the upper end of the fifth bearing (4-2-3); the scraper blade (4-2-15) is connected with a scraper blade fixing plate (4-2-14-7) through a bolt; the knife point of the scraper blade (4-2-15) forms an included angle of 35 degrees.
8. A scraper centrifuge according to claim 5, characterized in that the frame assembly (2) comprises a motor (2-1) arranged on the bottom casing assembly (2-8), the motor (2-1) being connected to the first belt pulley (1-15) of the bearing assembly (1) via the second belt pulley (2-3), the V-belt (2-2); belt shields (2-5) are arranged on the first belt pulley (1-15) and the second belt pulley (2-3); the upper end and the lower end of the bottom plate shell assembly (2-8) are respectively provided with a lifting ring (2-4) and a shock isolator (2-7); the bottom plate shell assembly (2-8) is provided with a lubricating oil pipe assembly (2-6) used for lubricating the bearing assembly (1).
9. A scraper centrifuge according to claim 1, characterized in that the filter assembly (3) comprises a rotating drum (3-4), the upper end of the rotating drum (3-4) is provided with a tension ring (3-1), and the inside of the rotating drum (3-4) is provided with filter cloth (3-3) and a supporting backing net (3-2) by means of self-locking bands (3-5).
10. The scraper centrifuge as claimed in claim 1, wherein the cover (4-1) comprises a cylinder (4-1-8), the upper end of the cylinder (4-1-8) is provided with a cover plate (4-1-6) respectively, the cover plate (4-1-6) is provided with a manhole (4-1-5), the cylinder (4-1-8) is provided with a feeding pipe, and the feeding pipe is divided into a long feeding pipe (4-1-2) and a short feeding pipe (4-1-1); the barrel (4-1-8) is also provided with a drum washing pipe (4-1-3), a washing pipe (4-1-4) and a side washing pipe (4-1-7) respectively.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911015599.5A CN110665647B (en) | 2019-10-24 | 2019-10-24 | Scraper centrifuge |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911015599.5A CN110665647B (en) | 2019-10-24 | 2019-10-24 | Scraper centrifuge |
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| CN110665647A true CN110665647A (en) | 2020-01-10 |
| CN110665647B CN110665647B (en) | 2024-05-07 |
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| JP2000140704A (en) * | 1998-11-16 | 2000-05-23 | Ameroido Nippon Service Sha:Kk | Centrifugal separator |
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| US20100230241A1 (en) * | 2009-03-16 | 2010-09-16 | Felton Jarrod J | Belt scraper tensioning assembly |
| CN201632334U (en) * | 2009-12-28 | 2010-11-17 | 广西盛誉糖机制造有限责任公司 | Top suspension centrifuge supporting device |
| CN202570422U (en) * | 2012-05-03 | 2012-12-05 | 江苏赛德力制药机械制造有限公司 | Lower discharge centrifugal machine with vertical scrapper capable of removing residual filter cakes |
| CN104138809A (en) * | 2014-07-11 | 2014-11-12 | 江苏华大离心机股份有限公司 | Top suspension centrifuge |
| CN204841964U (en) * | 2015-06-08 | 2015-12-09 | 江苏赛德力制药机械制造有限公司 | Vertically subside discharge centrifuge under type scraper |
| CN210753236U (en) * | 2019-10-24 | 2020-06-16 | 湘潭惠博离心机有限公司 | Scraper centrifuge |
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2019
- 2019-10-24 CN CN201911015599.5A patent/CN110665647B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000140704A (en) * | 1998-11-16 | 2000-05-23 | Ameroido Nippon Service Sha:Kk | Centrifugal separator |
| CN2593911Y (en) * | 2002-12-13 | 2003-12-24 | 黄晓军 | Vertical scraper discharging centrifuge with liftable rotary cover |
| US20100230241A1 (en) * | 2009-03-16 | 2010-09-16 | Felton Jarrod J | Belt scraper tensioning assembly |
| CN201632334U (en) * | 2009-12-28 | 2010-11-17 | 广西盛誉糖机制造有限责任公司 | Top suspension centrifuge supporting device |
| CN202570422U (en) * | 2012-05-03 | 2012-12-05 | 江苏赛德力制药机械制造有限公司 | Lower discharge centrifugal machine with vertical scrapper capable of removing residual filter cakes |
| CN104138809A (en) * | 2014-07-11 | 2014-11-12 | 江苏华大离心机股份有限公司 | Top suspension centrifuge |
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| CN210753236U (en) * | 2019-10-24 | 2020-06-16 | 湘潭惠博离心机有限公司 | Scraper centrifuge |
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| CN110665647B (en) | 2024-05-07 |
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