CN113695094B - Liquid skimming device, liquid skimming method and centrifugal machine - Google Patents
Liquid skimming device, liquid skimming method and centrifugal machine Download PDFInfo
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- CN113695094B CN113695094B CN202111082776.9A CN202111082776A CN113695094B CN 113695094 B CN113695094 B CN 113695094B CN 202111082776 A CN202111082776 A CN 202111082776A CN 113695094 B CN113695094 B CN 113695094B
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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
- B04B11/08—Skimmers or scrapers for discharging ; Regulating thereof
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Abstract
The utility model relates to the technical field of wheat deep processing, in particular to a liquid skimming device, a liquid skimming method and a centrifuge, which comprise the following steps: the mounting seat is arranged on the cover of the centrifugal machine; the rotating shaft is rotatably connected to the inner wall of the mounting seat; and the driving part is arranged on the mounting seat and can drive the rotating shaft to rotate. According to the utility model, the scraper is arranged to be elastically contacted with the surface of the solid-phase material in a rotating manner, when the scraper rotates to be gradually close to the surface of the solid-phase material, the side surface of the scraper is contacted with the solid-phase material, the reasonable contact area is arranged, so that the pressure of the solid-phase material to the side surface of the scraper is larger than the torsion of the spring, the pressure of the viscous material to the side surface of the scraper is smaller than the torsion of the spring, the scraper just invades the viscous material layer to scrape the material, the scraper plays the role of automatic limiting and the role of scraping and throwing the viscous material, and automatic skimming is realized.
Description
Technical Field
The utility model relates to the technical field of wheat deep processing, in particular to a liquid skimming device, a liquid skimming method and a centrifugal machine.
Background
Starch is mainly composed of amylopectin and amylose. The ratio of amylose to amylopectin determines the structure of starch grains and thus affects the quality, function and field of application of the starch. The straight/branch ratio of wheat A-, B-type starch varies greatly, and the gelatinization characteristics of the wheat A-, B-type starch vary significantly. The A-type starch granules have high amylose content, and the B-type starch granules have higher gelatinization temperature, lower peak viscosity, lower relaxation value and lower rebound value. Therefore, the ideal combination can be recombined by adjusting the proportion of starch with different grain sizes in the starch, the wheat starch can have wider application value by subdividing the grain sizes of the wheat starch, and the economic benefit of the wheat is improved.
The traditional starch production is to use flour as raw materials to produce 62% wheat starch and 13.5% wheat gluten, the comprehensive utilization rate only reaches 75.5%, and the rest 24.5% is used for raising pigs by farmers, most of the wheat starch is discharged with water in white, and meanwhile, a great difficulty is caused to enterprises in sewage treatment. The separation of A-type and B-type starch is started along with the appearance of a precise particle size analyzer, but the separation of A-type starch is applied in a plurality of fields, such as the A-type starch is one of raw materials for producing the duplicating paper, and the B-type starch can be used as a filler of film, and the B-type starch granule can be used in space materials due to the ultra-fine type starch granule, so that the separation has high economic and technological values.
In the prior art, for the dehydration separation of the wheat A, B starch, the skimming separation is usually carried out manually, the thickness of the solid phase material is not easy to distinguish, the separation time is inaccurate, the single separation amount is small, and the process of skimming and liquid supplementing is required to be repeated, so that the continuity and the production efficiency of the starch separation operation are low.
Prior art literature:
patent document 1: separation and purification process of CN101418048A wheat flour starch particles
Patent document 2: CN109530098A flat plate sedimentation centrifuge capable of automatic skimming
Disclosure of Invention
The utility model aims to provide a skimming device, which comprises:
the mounting seat is arranged on the cover of the centrifugal machine;
the rotating shaft is rotatably connected to the inner wall of the mounting seat;
the driving part is arranged on the mounting seat and can drive the rotating shaft to rotate;
the sleeve is sleeved on the outer wall of the rotating shaft and is positioned in the centrifugal barrel;
wherein the outer wall of the sleeve is provided with a scraper which is configured to have a slope inclined around the outer wall of the sleeve and extending upwards, the bottom end of the slope has a first edge, the top end has a second edge, the first edge is inclined upwards relative to the horizontal plane, the second edge is inclined downwards relative to the horizontal plane, the side edge of the slope has a third edge, and the third edge is configured to be a spiral upward curve;
the scraper can be driven by the driving component to move from a first position to a second position, when in the second position, a part of the third edge of the inclined surface is in contact with the solid-phase material to form a contact area, the inclined surface comprises a first area immersed in the viscous material layer and a second area positioned outside the viscous material layer, and the second area extends into the inner edge of the liquid baffle of the centrifugal cylinder in the radial direction;
the sleeve is elastically connected with the rotating shaft through a torsion spring, so that the scraper rotates anticlockwise when the contact area contacts with the solid-phase material.
Preferably, the scraper is arranged at the upper part of the sleeve and below the liquid baffle of the centrifugal barrel.
Preferably, the contact area is 100-120mm 2 。
Preferably, the first edge is located at the anticlockwise direction of the second edge, and when the sleeve rotates clockwise relative to the rotating shaft, the torsion spring provides elasticity to the sleeve, so that the scraper rotates clockwise when touching the solid-phase material and has a tendency to rebound anticlockwise.
Preferably, the inclined plane forms an included angle of 45 degrees with the horizontal plane, and the inclined plane inclines upwards, so that the viscous material scraped by the first area moves upwards to the second area and is thrown out.
Preferably, three scrapers distributed at equal intervals along the axial direction are arranged on the sleeve, and the three scrapers are all positioned on the upper half part of the centrifugal barrel.
Preferably, the driving part comprises a cylinder, and the driving end of the cylinder is in transmission connection with the rotating shaft through a connecting rod or a gear.
The utility model provides another technical scheme, a skimming method, which uses the skimming device, and comprises the following steps:
and 3, driving the rotating shaft to rotate clockwise by the driving component so that the scraper moves from the second position to the first position.
Preferably, in step 1, the scraper is retracted to a position within the inner diameter of the liquid baffle of the centrifugal barrel at a first position, the second position is determined by the thickness layer of the solid phase material detected by the solid phase material detection device, and the second position is at a circumferential position where the solid phase material layer is located.
The utility model provides another technical scheme, namely the centrifugal machine comprises the skimming device in the scheme, and further comprises a shell and a centrifugal barrel, wherein the automatic skimming device is mounted on the shell and extends to the inner side of the centrifugal barrel.
Compared with the prior art, the utility model has the advantages that:
according to the utility model, the scraper is arranged to be elastically contacted with the surface of the solid-phase material in a rotating manner, when the scraper rotates to be gradually close to the surface of the solid-phase material, the side surface of the scraper is contacted with the solid-phase material, the reasonable contact area is arranged, so that the pressure of the solid-phase material to the side surface of the scraper is larger than the torsion of the spring, the pressure of the viscous material to the side surface of the scraper is smaller than the torsion of the spring, the scraper just invades into the viscous material layer to scrape the material, and the scraper plays a role of automatic limiting and plays a role of scraping and throwing the viscous material.
The automatic scraping device can automatically adjust the scraping thickness according to the thickness of the sticky material, so that the sticky material on the surface of the solid-phase material is scraped, automatic skimming is realized, the quality of the remained solid-phase material is kept to be good, the sticky material on the inner wall is remained, and the automatic starch separation operation is completed by matching with a centrifuge, so that the automatic scraping device can be suitable for large-yield and high-quality automatic production.
It should be understood that all combinations of the foregoing concepts, as well as additional concepts described in more detail below, may be considered a part of the inventive subject matter of the present disclosure as long as such concepts are not mutually inconsistent. In addition, all combinations of claimed subject matter are considered part of the disclosed inventive subject matter.
The foregoing and other aspects, embodiments, and features of the present teachings will be more fully understood from the following description, taken together with the accompanying drawings. Other additional aspects of the utility model, such as features and/or advantages of the exemplary embodiments, will be apparent from the description which follows, or may be learned by practice of the embodiments according to the teachings of the utility model.
Drawings
The drawings are not intended to be drawn to scale. In the drawings, each identical or nearly identical component that is illustrated in various figures may be represented by a like numeral. For purposes of clarity, not every component may be labeled in every drawing. Embodiments of various aspects of the utility model will now be described, by way of example, with reference to the accompanying drawings, in which:
FIG. 1 is a schematic illustration of the position of the skimming device of the present utility model in a centrifuge;
FIG. 2 is a schematic view of the construction of the skimming device according to the present utility model;
FIG. 3 is a top view of the doctor blade of the utility model;
Detailed Description
For a better understanding of the technical content of the present utility model, specific examples are set forth below, along with the accompanying drawings.
Aspects of the utility model are described in this disclosure with reference to the drawings, in which are shown a number of illustrative embodiments. The embodiments of the present disclosure are not necessarily intended to include all aspects of the utility model. It should be understood that the various concepts and embodiments described above, as well as those described in more detail below, may be implemented in any skimming device and centrifuge in a number of ways, as the disclosed concepts and embodiments are not limited to any implementation. Additionally, some aspects of the disclosure may be used alone or in any suitable combination with other aspects of the disclosure.
In connection with fig. 1, after the liquid supplementing, as some impurities exist in the solid phase material, the surface of the material needs to be cleaned, and the inner wall of the washed solid phase material is provided with a viscous material layer, the material layer needs to be scraped, otherwise, in the subsequent scraping step, moist adhesion particles exist in the finished starch.
Therefore, the automatic skimming device 9 is required to scrape the viscous material layer of the inner layer of the solid phase material, and the automatic skimming device 9 includes a mounting seat 911, a rotating shaft 92, a driving part 91, a sleeve 93 and a scraper 94 as shown in fig. 2.
The mounting base 911 is provided on the cover 31 of the centrifuge; the rotating shaft 92 is rotatably connected to the inner wall of the mounting seat 911; the driving part 91 is arranged on the mounting seat 911 and can drive the rotating shaft 92 to rotate; the sleeve 93 is sleeved on the outer wall of the rotating shaft 92 and is positioned inside the centrifugal barrel 93.
As shown in connection with fig. 3, wherein the outer wall of the sleeve 93 is provided with a scraper 94 (the skimming tool comprises the sleeve 93 and the scraper 94), the scraper 94 is configured to have a slope inclined around the outer wall of the sleeve 93 and extending upwards, the bottom end of the slope having a first edge 941, the top end having a second edge 942, the first edge 941 being inclined upwards relative to the horizontal plane, the second edge 942 being inclined downwards relative to the horizontal plane, the side edge of the slope having a third edge 943, the third edge 943 being configured as a spiral upwards curve. The inclined plane and the horizontal plane have an included angle of 45 degrees and incline upwards.
Further, the sleeve 93 and the shaft 92 are elastically connected by a torsion spring 95.
Referring to fig. 1, the sleeve 93 is driven by the driving device to rotate relative to the housing 3, and reciprocates between a first position and a second position, wherein the scraper 94 is close to the joint surface of the solid-phase material and the liquid-phase material detected by the second level indicator 6.
In the second position, a portion of the third edge 943 of the ramp is in contact with the solid phase material, forming a contact area, the ramp comprising a first area immersed in the viscous material layer and a second area located outside the viscous material layer, the second area extending in a radial direction into the inner edge of the liquid barrier 22 of the centrifuge bowl 2.
Thus, as shown in connection with fig. 1, when skimming is performed, the shaft 92 is driven by the driving member 91 to rotate counterclockwise, the sleeve 93 rotates counterclockwise, and when the scraper 94 rotates to contact with the viscous material on the surface of the solid material, the shaft continues to rotate inward until the shaft rotates to an angle exceeding the surface of the solid material, and when the scraper 94 contacts the surface of the solid material, the scraper 94 is prevented from continuously invading inward due to the contact surface between the third edge 943 and the solid material, and the torsion spring 95 between the shaft 92 and the sleeve 93 provides elastic connection to rotate relatively, so that the third edge 943 only contacts the surface of the solid material, but does not invading, and the viscous material is guided and scraped obliquely, so that the viscous material is discharged from the opening 201 on the inner edge of the liquid baffle 22.
In the radial direction, the first edge 941 is at least partially within the coverage area of the liquid baffle 22, and the second edge 942 is outside the coverage area of the liquid baffle 22, so that the inclined surface portion is within the coverage area of the liquid baffle 22, that is, the portion contacting with the viscous material in the inner layer of the solid phase material, and is aimed at scraping the viscous material onto the inclined surface, and the portion where the inclined surface continues to extend has a guiding effect on the material, and at the end of the inclined surface, the inclined surface is located outside the coverage area of the liquid baffle 22, and when the material slides down the end of the inclined surface, i.e. flies upwards, slides between the centrifugal barrel 2 and the casing 3.
As shown in fig. 1, the scraper 94 is disposed on the upper portion of the sleeve 93 and below the liquid baffle 22 of the centrifuge bowl 2, and the material is thrown upward during rotation of the centrifuge bowl 2, so that the material thrown upward is scraped off the centrifuge bowl 2 when passing through the scraper 94.
In a preferred example, the third edge 943 has a contact area with the solid phase material of 100-120mm 2 。
Further, as shown in fig. 3, the first edge 941 is located at the counterclockwise direction of the second edge 942, and when the sleeve 93 rotates clockwise relative to the rotating shaft 92, the torsion spring 95 provides an elastic force to the sleeve 93, so that the scraper 94 rotates clockwise and has a tendency to rebound counterclockwise when touching the solid material.
Thus, when the third edge 943 contacts the solid-phase material, the contact pressure of the solid-phase material is applied and the torsion force of the spring is larger than that of the spring, and at this time, the third edge 943 is not in rigid contact with the solid-phase material, so that the third edge 943 can be kept from being immersed in the solid-phase material, and the solid-phase material layer is prevented from being peeled off.
Preferably, three blades 94 are disposed on the sleeve 93 at equal intervals in the axial direction, and the three blades 94 are located on the upper half of the centrifugal barrel, so that the skimming range and skimming efficiency can be increased by the three blades 94.
In an alternative embodiment, the driving part 91 comprises a cylinder, and the driving end of the cylinder is in transmission connection with the rotating shaft 92 through a connecting rod or a gear.
The utility model provides another technical scheme, a skimming method, which uses the skimming device, and comprises the following steps:
Preferably, in step 1, the scraper 94 is retracted within the inner diameter of the liquid baffle 22 of the centrifuge bowl 2 in a first position, the second position being defined by the thickness layer of the solid phase material detected by the solid phase material detection means, the second position being at a circumferential position of the solid phase material layer.
The utility model provides another technical scheme, namely the centrifugal machine comprises the skimming device in the scheme, and further comprises a shell and a centrifugal barrel, wherein the automatic skimming device is mounted on the shell and extends to the inner side of the centrifugal barrel.
By combining the above embodiments, the utility model can be automatically driven to move to the bonding surface of the solid-phase material and the sticky material, and can automatically adjust the scraping thickness according to the thickness of the sticky material, so that the sticky material on the surface of the solid-phase material is scraped, automatic skimming is realized, the quality of the remained solid-phase material is kept good, the sticky material on the inner wall is remained, and the automatic starch separation operation is completed by matching with a centrifuge, thereby being suitable for large-yield and high-quality automatic production.
While the utility model has been described with reference to preferred embodiments, it is not intended to be limiting. Those skilled in the art will appreciate that various modifications and adaptations can be made without departing from the spirit and scope of the present utility model. Accordingly, the scope of the utility model is defined by the appended claims.
While the utility model has been described with reference to preferred embodiments, it is not intended to be limiting. Those skilled in the art will appreciate that various modifications and adaptations can be made without departing from the spirit and scope of the present utility model. Accordingly, the scope of the utility model is defined by the appended claims.
Claims (10)
1. A skimming device, comprising:
the mounting seat is arranged on the cover of the centrifugal machine;
the rotating shaft is rotatably connected to the inner wall of the mounting seat;
the driving part is arranged on the mounting seat and can drive the rotating shaft to rotate;
the sleeve is sleeved on the outer wall of the rotating shaft and positioned in the centrifugal barrel;
wherein the outer wall of the sleeve is provided with a scraper which is configured to have a slope inclined around the outer wall of the sleeve and extending upwards, the bottom end of the slope has a first edge, the top end has a second edge, the first edge is inclined upwards relative to the horizontal plane, the second edge is inclined downwards relative to the horizontal plane, the side edge of the slope has a third edge, and the third edge is configured to be a spiral upward curve;
the scraper can be driven by the driving component to move from a first position to a second position, when in the second position, a part of the third edge of the inclined surface is in contact with the solid-phase material to form a contact area, the inclined surface comprises a first area immersed in the viscous material layer and a second area positioned outside the viscous material layer, and the second area extends into the inner edge of the liquid baffle of the centrifugal cylinder in the radial direction;
the sleeve is elastically connected with the rotating shaft through a torsion spring, so that the scraper rotates anticlockwise when the contact area is contacted with the solid-phase material.
2. Skimming device according to claim 1, characterized in that the scraper is arranged in the upper part of the sleeve below the liquid baffle of the centrifuge barrel.
3. Skimming device according to claim 1, characterized in that the contact area is 100-120mm 2 。
4. The skimming device according to claim 1, wherein said first edge is located at a counterclockwise direction of said second edge, said torsion spring providing a spring force against said sleeve when said sleeve is rotated clockwise relative to said shaft to rotate clockwise and have a tendency to rebound counterclockwise when said scraper contacts solid material.
5. Skimming device according to claim 1, characterized in that the angle of the inclined surface is 45 ° to the horizontal and is inclined upwards so that the viscous material scraped off by the first zone is thrown out after moving upwards to the second zone.
6. Skimming device according to claim 1, characterized in that said sleeve is provided with three said blades equally spaced in axial direction, all three said blades being located in the upper half of the centrifuge barrel.
7. Skimming device according to claim 1, characterized in that the driving means comprise a cylinder, the driving end of which is in driving connection with the spindle via a connecting rod or a gear.
8. A skimming method, characterized in that a skimming device according to any of claims 1-7 is used, comprising the steps of:
step 1, a driving part drives a rotating shaft to rotate anticlockwise, so that a scraper moves from a first position to a second position;
step 2, a scraper invades a viscous material layer on the inner wall of the solid-phase material and is elastically attached to the surface of the solid-phase material layer, so that the viscous material layer is guided by an inclined slope and scraped off and thrown out of the centrifugal barrel along the inclined slope;
and 3, driving the rotating shaft to rotate clockwise by the driving component so that the scraper moves from the second position to the first position.
9. The skimming method according to claim 8, characterized in that; in the step 1, when the scraper is at the first position, the scraper is contracted to be within the inner diameter of the liquid baffle of the centrifugal barrel, the second position is determined by the thickness layer of the solid phase material detected by the solid phase material detection device, and the second position is at the circumferential position of the solid phase material layer.
10. A centrifuge comprising the skimming device according to any one of claims 1-7, further comprising a housing and a centrifuge bowl, said skimming device being mounted to said housing and extending to the inside of said centrifuge bowl.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111082776.9A CN113695094B (en) | 2021-09-15 | 2021-09-15 | Liquid skimming device, liquid skimming method and centrifugal machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111082776.9A CN113695094B (en) | 2021-09-15 | 2021-09-15 | Liquid skimming device, liquid skimming method and centrifugal machine |
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| Publication Number | Publication Date |
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| CN113695094A CN113695094A (en) | 2021-11-26 |
| CN113695094B true CN113695094B (en) | 2023-05-02 |
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| CN202111082776.9A Active CN113695094B (en) | 2021-09-15 | 2021-09-15 | Liquid skimming device, liquid skimming method and centrifugal machine |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112871468B (en) * | 2020-12-23 | 2023-01-31 | 河北化工医药职业技术学院 | Material layer controller of centrifugal machine |
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| CN106669986A (en) * | 2016-08-29 | 2017-05-17 | 江苏圣力离心机制造有限公司 | Fully-automatic settling centrifuge for discharging materials under scrapers |
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| GB430385A (en) * | 1934-06-29 | 1935-06-18 | Hugo Koch | Improvements relating to discharge apparatus of centrifugal machines |
| CN2696720Y (en) * | 2004-04-01 | 2005-05-04 | 孙富一 | Concentration centrifuger |
| CN201921741U (en) * | 2010-10-21 | 2011-08-10 | 江苏牡丹离心机制造有限公司 | Horizontal type siphon centrifuge |
| CN202212270U (en) * | 2011-07-16 | 2012-05-09 | 江苏赛德力制药机械制造有限公司 | Siphon scraper discharging centrifuge siphon |
| CN102974476A (en) * | 2012-12-30 | 2013-03-20 | 张家港市轻工设备厂 | Scraper assembly for centrifugal machine |
| CN103008118A (en) * | 2012-12-30 | 2013-04-03 | 张家港市轻工设备厂 | Centrifugal machine special for starch |
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| CN109530098A (en) * | 2018-12-23 | 2019-03-29 | 辽阳中联制药机械有限公司 | The plate sedimentation-type centrifuge of liquid can be skimmed automatically |
| CN209438822U (en) * | 2018-12-23 | 2019-09-27 | 辽阳中联制药机械有限公司 | The plate sedimentation-type centrifuge of liquid can be skimmed automatically |
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| CN204429505U (en) * | 2015-02-06 | 2015-07-01 | 江苏牡丹离心机制造有限公司 | There is the vertical flat plate sedimentation centrifuge of automatic discharging function |
| CN106669986A (en) * | 2016-08-29 | 2017-05-17 | 江苏圣力离心机制造有限公司 | Fully-automatic settling centrifuge for discharging materials under scrapers |
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| CN113695094A (en) | 2021-11-26 |
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