CN111729763A - Centrifuge rotor structure - Google Patents
Centrifuge rotor structure Download PDFInfo
- Publication number
- CN111729763A CN111729763A CN202010732125.9A CN202010732125A CN111729763A CN 111729763 A CN111729763 A CN 111729763A CN 202010732125 A CN202010732125 A CN 202010732125A CN 111729763 A CN111729763 A CN 111729763A
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- Prior art keywords
- blade
- blades
- rotor structure
- arc
- centrifuge rotor
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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
- B04B1/20—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles discharging solid particles from the bowl by a conveying screw coaxial with the bowl axis and rotating relatively to the bowl
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- 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
- B04B11/02—Continuous feeding or discharging; Control arrangements therefor
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- Centrifugal Separators (AREA)
Abstract
The invention relates to the technical field of centrifuges, in particular to a rotor structure of a centrifuge. The spiral blade is connected with the rotary drum through a support blade, and the fixing direction of the support blade is opposite to the fixing direction of the spiral blade. In the centrifuge rotor structure, when the rotary drum rotates at high speed, the rotary directions of the rotary drum and the spiral blades are consistent and opposite to the rotary direction of the supporting blades. At the moment, a pump pressure is formed in the high-speed rotation, and a part of light liquid (water) is discharged in the reverse direction, so that the working treatment capacity is increased, and the material dryness is correspondingly improved. Under the condition of the same type and the same material property, the centrifuge rotor structure can ensure that the material handling capacity of the equipment is increased by at least 2-3m per hour3The dryness of the material is improved by at least 3 percent.
Description
Technical Field
The invention relates to the technical field of centrifuges, in particular to a rotor structure of a centrifuge.
Background
The horizontal spiral sedimentation centrifuge is a machine which makes a mud-water mixture enter a rotary drum through a feeding pipe and a spiral discharge port, under the action of centrifugal force generated by high-speed rotation of a host, solid-phase particles with large specific gravity are deposited on the inner wall of the rotary drum, spiral blades which move relative to the rotary drum continuously scrape the solid-phase particles deposited on the inner wall of the rotary drum and push the solid-phase particles out of a slag discharge port, and separated clear liquid flows out of the rotary drum through a weir plate opening. The horizontal spiral sedimentation centrifuge has the advantages of high automation degree, low labor cost and the like. The method is widely applied to the fields of food processing, petrochemical industry, environmental protection and the like. However, the existing horizontal spiral sedimentation centrifuge has the defects of low dehydration dryness of materials and general productivity in the using process.
The existing method for improving the dehydration dryness of the materials can increase the separation factor by improving the rotating speed of the rotary drum, but the power consumption is inevitably increased by improving the rotating speed, and the noise is increased. In addition, the service life of wearing parts such as a bearing belt is shortened, higher requirements are provided for a rotary drum material, the efficiency of the flocculating agent is reduced at high rotating speed, and the dosing amount is increased. Therefore, it is now urgently needed to develop a novel centrifuge structure which can improve the dryness of the material dehydration by carrying out the structural design on the basis of the existing centrifuge structure, and the production capacity is also improved.
Disclosure of Invention
In order to solve the defects in the prior art, the invention provides a centrifuge rotor structure which can improve the dehydration dryness of materials and has high yield in a centrifuge.
The technical scheme of the invention is as follows:
a rotor structure of a centrifuge comprises a rotating drum and helical blades arranged on the rotating drum, wherein the helical blades close to the straight end of the rotor are connected with the rotating drum through supporting blades, and the fixing direction of the supporting blades is opposite to the fixing direction of the helical blades.
Further, the helical blade is arranged as a helical blade with a first and/or a second pitch from the straight end of the rotor.
Furthermore, the supporting blades and the cross section of the straight end of the rotor form an included angle of 9.5 degrees.
Furthermore, the supporting blades are arranged to be evenly distributed on the spiral circumference matched with the spiral blades.
Furthermore, the number of the supporting blades is uniformly distributed on the spiral circumference by 6.
Further, the supporting blades are welded and fixed with the rotary drum and the spiral blades.
Further, the support blade comprises a first arc-shaped welding surface, a second arc-shaped welding surface and a support blade body of an arc-shaped structure, wherein the first arc-shaped welding surface and the second arc-shaped welding surface are connected, the first arc-shaped welding surface is fixedly connected with the whole rotary drum in a laminating mode, and the second arc-shaped welding surface is fixedly connected with the local spiral blade in a laminating mode.
Furthermore, the center position of the second arc-shaped welding surface is fixedly connected with the helical blade.
Further, the width of the supporting blade body is equal to the width of the helical blade.
Further, the helical blade which is not close to the straight end of the rotor is connected with the rotating drum through a supporting column.
The invention achieves the following beneficial effects:
in the centrifuge rotor structure, when the rotary drum rotates at high speed, the rotary directions of the rotary drum and the spiral blades are consistent and opposite to the rotary direction of the supporting blades. At the moment, a pump pressure is formed in the high-speed rotation, and a part of light liquid (water) is discharged in the reverse direction, so that the working treatment capacity is increased, and the material dryness is correspondingly improved. Under the condition of the same type and the same material property, the centrifuge rotor structure can ensure that the material handling capacity of the equipment is increased by at least 2-3m per hour3The dryness of the material is improved by at least 3 percent.
The support blades in the rotor structure of the centrifuge can be obtained from the leftovers of the spiral blades, so that the overall production cost is reduced.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
FIG. 2 is a schematic view of the support blade structure of the present invention.
Wherein, 1, the straight end of the rotor; 2. a helical blade; 3. supporting the blades; 31. a first arcuate weld face; 32. supporting the blade body; 33. a second arcuate weld face; 4. a support pillar; 5. a rotating drum.
Detailed Description
To facilitate an understanding of the present invention by those skilled in the art, specific embodiments thereof are described below with reference to the accompanying drawings.
As shown in fig. 1-2, a centrifuge rotor structure includes a bowl 5 and a helical blade 2 provided on the bowl 5. The helical blade 2 near the straight end 1 of the rotor is connected to the rotor drum 5 by means of a support blade 3, the fixing direction of said support blade 3 being opposite to the fixing direction of the helical blade 2.
Specifically, the helical blade 2 is set as the helical blade 2 with the first and/or second pitch from the straight end 1 of the rotor. The helical blades 2 in this embodiment are arranged within the first pitch of the straight end 1 of the rotor. The supporting blades 3 and the cross section of the straight end 1 of the rotor form an included angle of 9.5 degrees. The supporting blades 3 are uniformly distributed on the spiral circumference matched with the spiral blades 2. In this embodiment, the number of the support blades 3 is 6 on the spiral circumference.
The supporting blade 3 is welded and fixed with the rotary drum 5 and the helical blade 2. Specifically, the support blade 3 includes a first arc-shaped welding surface 31, a second arc-shaped welding surface 33, and a support blade body 32 having an arc-shaped structure connecting the first arc-shaped welding surface 31 and the second arc-shaped welding surface 33. The first arc-shaped welding surface 31 is fixedly connected with the whole rotary drum 5 in an attaching mode, and the second arc-shaped welding surface 33 is fixedly connected with the local helical blade 2 in an attaching mode. The center position of the second arc-shaped welding surface 33 is fixedly connected with the helical blade 2. The width of the support blade body 32 is equal to the width of the helical blade 2. Specifically, the width of the support blade 3 is 200 mm. The helical blade 2 which is not close to the straight end 1 of the rotor is welded and fixed with the rotary drum 5 through a support column 4.
In actual use, when the rotary drum 5 rotates at a high speed, the rotary drum 5 and the helical blades 2 rotate in the same direction, and materials are pushed forwards. At this time, the support blade 3 rotates in the opposite direction to the spiral blade 2. At this time, a pump pressure is formed in the high-speed rotation, and a part of light liquid (water) is discharged in the reverse direction, so that the working treatment capacity is increased, and the dryness of the material is correspondingly improved (as shown in table 1).
TABLE 1 treatment effect table of equipment caused by new and old rotor structures of the same model
As shown in Table 1, under the condition of the same model and the same material property, the rotor structure of the invention can improve the material handling capacity of equipment by 2-3m per hour3And h, the dryness of the material is improved by 3 percent.
The above-described embodiments of the present invention do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (10)
1. A centrifuge rotor structure, includes the rotary drum and sets up the helical blade on the rotary drum, its characterized in that: the helical blade near the straight end of the rotor is connected with the rotating drum through a supporting blade, and the fixing direction of the supporting blade is opposite to that of the helical blade.
2. A centrifuge rotor structure according to claim 1, wherein: the helical blades are arranged as helical blades of a first and/or a second pitch starting from the straight end of the rotor.
3. A centrifuge rotor structure according to claim 1, wherein: the supporting blades and the cross section of the straight end of the rotor form an included angle of 9.5 degrees.
4. A centrifuge rotor structure according to claim 1, wherein: the supporting blades are arranged to be evenly distributed on the spiral circumference matched with the spiral blades.
5. A centrifuge rotor structure according to claim 4, wherein: the number of the supporting blades is 6 on the spiral circumference.
6. A centrifuge rotor structure according to claim 1, wherein: and the supporting blades are welded and fixed with the rotary drum and the spiral blades.
7. A centrifuge rotor structure according to any of claims 1-6, wherein: the support blade comprises a first arc-shaped welding surface, a second arc-shaped welding surface and a support blade body of an arc-shaped structure, wherein the first arc-shaped welding surface and the second arc-shaped welding surface are connected, the first arc-shaped welding surface is fixedly connected with the whole rotary drum in a laminating manner, and the second arc-shaped welding surface is fixedly connected with the local spiral blade in a laminating manner.
8. A centrifuge rotor structure according to claim 7, wherein: the center position of the second arc-shaped welding surface is fixedly connected with the helical blade.
9. A centrifuge rotor structure according to claim 7, wherein: the width of the supporting blade body is equal to the width of the spiral blade.
10. A centrifuge rotor structure according to claim 1, wherein: the helical blades not near the straight end of the rotor are connected with the rotating drum through supporting columns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010732125.9A CN111729763A (en) | 2020-07-27 | 2020-07-27 | Centrifuge rotor structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010732125.9A CN111729763A (en) | 2020-07-27 | 2020-07-27 | Centrifuge rotor structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111729763A true CN111729763A (en) | 2020-10-02 |
Family
ID=72657938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010732125.9A Pending CN111729763A (en) | 2020-07-27 | 2020-07-27 | Centrifuge rotor structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111729763A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114226076A (en) * | 2021-11-25 | 2022-03-25 | 苏州瑞威离心分离技术有限公司 | Horizontal screw centrifuge and production process of rice protein |
| CN115338043A (en) * | 2022-09-01 | 2022-11-15 | 杭州正和纳米科技有限公司 | High-efficiency centrifugal dehydration process and dehydrator for superfine calcium carbonate slurry |
-
2020
- 2020-07-27 CN CN202010732125.9A patent/CN111729763A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114226076A (en) * | 2021-11-25 | 2022-03-25 | 苏州瑞威离心分离技术有限公司 | Horizontal screw centrifuge and production process of rice protein |
| CN114226076B (en) * | 2021-11-25 | 2023-08-25 | 苏州瑞威离心分离技术有限公司 | Horizontal decanter centrifuge and rice protein production process |
| CN115338043A (en) * | 2022-09-01 | 2022-11-15 | 杭州正和纳米科技有限公司 | High-efficiency centrifugal dehydration process and dehydrator for superfine calcium carbonate slurry |
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