CN115138240A - Strong efficient kneading cylinder - Google Patents
Strong efficient kneading cylinder Download PDFInfo
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- CN115138240A CN115138240A CN202210877358.7A CN202210877358A CN115138240A CN 115138240 A CN115138240 A CN 115138240A CN 202210877358 A CN202210877358 A CN 202210877358A CN 115138240 A CN115138240 A CN 115138240A
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- arc section
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- stirring
- cylinder body
- kneading
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- 238000004898 kneading Methods 0.000 title claims description 57
- 238000003756 stirring Methods 0.000 claims abstract description 59
- 238000001125 extrusion Methods 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims description 8
- 230000000694 effects Effects 0.000 abstract description 22
- 239000000463 material Substances 0.000 description 18
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 14
- 229910052799 carbon Inorganic materials 0.000 description 14
- 238000004519 manufacturing process Methods 0.000 description 12
- 239000003575 carbonaceous material Substances 0.000 description 10
- 230000006872 improvement Effects 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 238000002474 experimental method Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
- B01F27/70—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles, blades or arms
- B01F27/701—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles, blades or arms comprising two or more shafts, e.g. in consecutive mixing chambers
- B01F27/706—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles, blades or arms comprising two or more shafts, e.g. in consecutive mixing chambers with all the shafts in the same receptacle
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The invention discloses a powerful and efficient mixing cylinder, wherein a left stirring knife and a right stirring knife which are arranged side by side are arranged in an inner cavity of the cylinder, and the axes of the stirring knives move forwards and backwards; the cross section profile of the inner wall of the cylinder body comprises two lower extrusion sections which are in one-to-one correspondence with the stirring knives and are positioned below the stirring knives, and also comprises two vertical sections which are in one-to-one correspondence with the stirring knives; the lower extrusion section comprises an inward concave lower arc section; the cross section profile of the inner wall of the cylinder body also comprises two side arc sections which are in one-to-one correspondence with the stirring knives, and the circle centers of the side arc sections are positioned at the inner side of the cylinder body; the outer end of each lower arc section is tangent and connected with the lower end of the corresponding side arc section, and the upper end of the side arc section is connected with the lower end of the corresponding vertical section. According to the invention, by prolonging the squeezing stroke, the mixing effect and the mixing efficiency are greatly improved on the premise of considering both the mixing effect and the driving force requirement.
Description
Technical Field
The invention relates to a carbon material kneading cylinder body.
Background
With the proposal of a double-carbon target, new development opportunities and challenges are met in the field of new energy such as solar photovoltaic and new energy automobiles. The carbon material is a material mainly composed of an element 'carbon', presents different structures, forms and performances along with the bonding mode and the combination form of carbon atoms, is one of important basic materials of new energy industries such as photovoltaics, new energy automobiles and the like, and is one of core processes of carbon material production by kneading. The development of related industries is greatly promoted by the double-carbon target and the industrial policy thereof, so that new higher requirements are provided for the product quality and the production efficiency of the industrial production of the carbon material, and further new higher requirements are provided for the technical level and the production efficiency of the kneading process.
The structure of the carbon kneading cylinder in the prior art mostly adopts the scheme recorded in the Chinese patent application "accurate temperature measuring device of carbon kneading equipment" with the publication number of CN 104155013A: two concave lower arc sections are arranged at the bottom of the cylinder body, the axes of the lower arc sections correspond to the axes of the two stirring knives one by one and are superposed, and a gap for squeezing and kneading the materials is reserved between the stirring knives and the lower arc sections; the outer end of the lower arc section is tangent to the lower end of the vertical side wall, and the two side walls and the top cover form a spacious mixing space above the stirring knife. The materials move along the inner wall of the cylinder body under the action of the stirring knife, and when the materials are positioned between the stirring knife and the arc section and are strongly squeezed and pinched by the stirring knife and move to the position above the stirring knife, the materials are fully mixed with each other. The drawbacks of this structure are: the squeezing stroke is very limited, the kneading effect is poor and the efficiency is low.
In order to improve the kneading effect and efficiency, the Chinese patent application 'carbon powerful kneading cylinder' with the publication number of CN106731975A provides a novel kneading cylinder structure, two upper arc sections are added above a stirring knife, and the gap between the upper arc section and the stirring knife is larger than the gap between the lower arc section and the stirring knife (or vice versa). The material is squeezed and pinched except in the arc section down, can also be squeezed and pinched when moving to the arc section, and the effect and the efficiency of kneading and pinching obtain obviously promoting. However, in order to leave a space for sufficient mixing of the materials, the gap between the upper arc section and the stirring knife cannot be too small, otherwise insufficient mixing can be caused, the quality requirement cannot be met, and the required driving power can be greatly improved. According to the patent scheme, when the range of k, which is the ratio of the height of the transition section of the side face to the radius of the rotating excircle of the stirring knife, is more than or equal to 0.4 and less than or equal to 0.6, the requirements of kneading effect, kneading efficiency and proper driving force matching can be met. However, the kneading effect and the production efficiency of the scheme are improved, and compared with new higher requirements for the kneading process of carbon material production, which are provided by the high-speed development of the current new energy industry, the scheme has a more obvious gap. Taking the carbon material fine particle high density special graphite for producing the solar photovoltaic industry as an example, the product quality standard is divided into 3 grades, 2 grades and 1 grades from low to high, the patent scheme is adopted for production, the proportion of the produced product reaching the 3 grade quality standard is 61%, and the stability of the product quality needs to be greatly improved; the proportion of the produced product reaching the grade 1 quality standard is 12 percent, and the product can not meet the requirement of the market on high-quality carbon materials. Meanwhile, the time for single batch kneading is 180-240 minutes, so that the improvement of the productivity is greatly limited, and the market demand for rapid growth is difficult to meet. If this problem is solved by adding kneading equipment, the supply of the production land is limited under the background of scarce land resources, and the equipment investment is required to be greatly increased.
Therefore, in order to meet the requirement of high-speed development of new energy industry, it is urgently needed to develop a high-quality and high-efficiency carbon material kneading technology so as to greatly improve the kneading quality and the production efficiency.
Disclosure of Invention
The invention provides a strong and efficient kneading cylinder body, which aims to: further improving the kneading quality and production efficiency of the carbon material production kneading process.
The technical scheme of the invention is as follows:
a powerful and efficient mixing cylinder body is characterized in that an inner cavity of the cylinder body is used for mounting a left stirring knife and a right stirring knife which are arranged side by side, and the axes of the stirring knives are in a front-back direction; the cross section profile of the inner wall of the cylinder body comprises two lower extrusion sections which are in one-to-one correspondence with the stirring knives and are positioned below the stirring knives, and also comprises two vertical sections which are in one-to-one correspondence with the stirring knives; the lower extrusion section comprises an inwards concave lower arc section;
the cross-sectional profile of the inner wall of the cylinder body also comprises two side arc sections which correspond to the stirring knives one by one, and the circle center of each side arc section is positioned at the inner side of the cylinder body;
the outer end of each lower arc section is tangent and connected with the lower end of the corresponding side arc section, and the upper end of the side arc section is connected with the lower end of the corresponding vertical section.
As a further improvement of the powerful and efficient kneading cylinder: the circle center of the lower arc section is coincided with the circle center of the side arc section, and the inner diameter of the lower arc section is equal to that of the side arc section; the upper end of the lower arc section has the same height as the axis of the stirring knife.
As a further improvement of the powerful and efficient kneading cylinder: the arc angle alpha of the side arc section is more than or equal to 10 degrees and less than or equal to 80 degrees.
As a further improvement of the powerful and efficient kneading cylinder: the arc angle of the side arc section is more than or equal to 40 degrees and less than or equal to 50 degrees.
As a further improvement of the powerful and efficient kneading cylinder: the axis of the stirring knife is coincided with the circle center of the corresponding lower arc section.
Compared with the prior art, the invention has the following beneficial effects: (1) The added side arc section is used as the extension of the lower arc section, so that the stroke of the squeezing function can be obviously increased, the kneading effect is improved, the kneading time is reduced, and the production efficiency is improved; (2) Compared with the structural scheme of an upper arc section and a lower arc section provided by the Chinese patent of powerful carbon kneading cylinder with the publication number of CN106731975A, the side arc section and the lower arc section are connected into a whole, so that the long stroke and continuous kneading of materials are realized, the kneading effect is better, and the effect is more sufficient; (3) Furthermore, when the stirring knife, the lower arc section and the side arc section are concentric and the diameters of the lower arc section and the side arc section are equal, the gap between the arc squeezing section consisting of the lower arc section and the side arc section and the stirring knife is consistent, so that not only is continuous squeezing realized, but also the squeezing effect is improved more remarkably because the extended part gap is smaller than the gap of the upper half part in the carbon strong mixing cylinder body; (4) The invention relates to a carbon strong kneading cylinder, wherein the upper half part of the carbon strong kneading cylinder is used for mixing and kneading simultaneously, in an extremely limited stroke, the size of a gap is both the mixing effect and the kneading effect, and the influence on driving force is also considered, the improvement range of the kneading effect is limited by various factors, the invention fully utilizes the space in the cylinder to separate the kneading region from the mixing region, the gap between an extended side arc section and a stirring knife is smaller and only used for kneading, the kneading effect can be improved more directly, the space between two vertical sections is used for full mixing, the mixing effect can be fully ensured due to wide space, the increase of the driving force can be controlled in a very small range, and particularly, when the angle of the side arc section is in the range of 40-50 degrees, the kneading effect and the kneading efficiency can be greatly improved on the premise of considering the mixing effect and the driving force requirements.
Drawings
Fig. 1 is a schematic cross-sectional structure of the present invention.
Detailed Description
The technical scheme of the invention is explained in detail in the following with the accompanying drawings:
referring to fig. 1, the cylinder inner cavity is used for mounting a left stirring blade 4 and a right stirring blade 4 (the dotted line in the figure is the outer edge profile of the stirring blades) which are arranged side by side, and the axial line of the stirring blades 4 is in the front-back direction. The cross section profile of the inner wall of the cylinder body comprises two lower extrusion sections which are in one-to-one correspondence with the stirring blades 4 and are positioned below the stirring blades 4 and two vertical sections 1 which are in one-to-one correspondence with the stirring blades 4, except for the two sealing plates at the front end and the rear end. Specifically, the lower extrusion section comprises a concave lower arc section 3, and the two lower arc sections 3 can be directly intersected at a position below the axes of the stirring blades 4 or connected through the arc sections, or can be tangent at the middle position between the axes of the two stirring blades 4.
The cross-sectional profile of the inner wall of the cylinder body further comprises two side arc sections 2 which are in one-to-one correspondence with the stirring knives 4, and the circle centers of the side arc sections 2 are located on the inner side of the cylinder body.
The outer end of each lower arc section 3 is connected with the lower end of the corresponding side arc section 2, preferably, the outer end of the lower arc section 3 is tangent with the lower end of the side arc section 2 at the joint. Alternatively, the two may not be tangent.
In this embodiment, the center of a circle of the lower arc section 3 coincides with the center of a circle of the side arc section 2, the inner diameter of the lower arc section 3 is equal to the inner diameter of the side arc section 2, the axis of the stirring blade 4 coincides with the center of a circle of the corresponding lower arc section 3, that is, the gap between the arc pinching section formed by the lower arc section 3 and the side arc section 2 and the stirring blade 4 is fixed. Meanwhile, the upper end of the lower arc section 3 is equal to the axis of the stirring knife 4 in height, namely the horizontal plane where the axis is located divides the lower arc section 3 and the side arc section 2.
As other alternative embodiments, the lower arc segment 3 and the side arc segment 2 may also be tangent under the condition that the centers of the circles are not coincident, and the inner diameters of the two arc segments are also different, and at this time, the gap between the stirring blade 4 and the arc pinching segment is continuously changed along with the circumferential direction.
The upper end of the side arc section 2 is connected with the lower end of the corresponding vertical section 1, and the area between the two groups of vertical sections 1 provides enough space for the mixing of materials.
When processing, the lower arc section 3, the side arc section 2 and the vertical section 1 are processed respectively and finally connected into a whole in a fixed connection mode.
When the material stirring device works, materials do circular motion in the cylinder body along with the rotation of the stirring knife 4, and when the materials move to a position between the stirring knife 4 and the circular arc squeezing section (formed by connecting the lower circular arc section 3 and the side circular arc section 2). The material is fully squeezed and pinched, and when the material moves between the two vertical sections 1, the material is fully mixed under the action of the stirring knife 4. Because the stroke of pinching is showing the extension, and the interval of pinching is clearly divided with the mixing interval simultaneously, consequently is giving consideration to on the premise of kneading effect and drive power demand, and the effect of kneading and efficiency of kneading are promoted by a wide margin.
The improvement effect of the invention is illustrated by experimental comparison as follows:
Experiment group 5, adopting the scheme of the embodiment, the arc angle of the side arc section 2 is 80 degrees.
The comparison group 1 adopts the scheme recorded in the Chinese invention patent 'accurate temperature measuring device of carbon kneading equipment' with the publication number of CN 104155013A.
In the control group 2, the parameter k =0.5 was set according to the protocol described in the chinese patent "carbon intensive kneading cylinder" with publication No. CN 106731975A.
The diameters of the stirring knives 4 and the diameters of the lower arc sections 3 of all the experimental groups and the comparison groups are equal to the mass of the materials put in the cylinder bodies, and the used raw materials and other process technologies are completely the same.
Taking the quality standard of the fed material reaching the kneading process as the finishing standard of kneading work (namely the finished product standard of a kneaded paste), the kneading time and the power consumption required by an experimental group and a control group and the quality grades (the product quality standard is divided into 3 grades, 2 grades and 1 grade from low to high) according to the quality standard of the carbon material fine-particle high-density special graphite for the solar photovoltaic industry are as follows:
| [0001]group of | [0002]Time (min) | [0003]Power consumption (kW.h) | [0004]Quality grade and ratio |
| [0005]Experimental group 1 | [0006] 180 | [0007] 18 | [0008] |
| [0009]Experimental group 2 | [0010] 160 | [0011] 18.1 | [0012] |
| [0013]Experimental group 3 | [0014] 120 | [0015] 18.2 | [0016] |
| [0017]Experimental group 4 | [0018] 115 | [0019] 18.5 | [0020] |
| [0021]Experimental group 5 | [0022] 112 | [0023] 18.6 | [0024] |
| [0025]Control group 1 | [0026] 300 | [0027] 16 | [0028] |
| [0029]Control group 2 | [0030] 210 | [0031] 17 | [0032] |
Therefore, the scheme of the invention has obvious advantages in kneading quality and production efficiency by adopting the same raw materials and matched processes thereof, and the power consumption is basically unchanged.
In addition, the quality inspection data of the carbon products kneaded in the above groups are compared, so that the carbon products kneaded in the experimental groups 2, 3 and 4 are obviously superior to other groups in the quality indexes such as density, strength, resistivity, thermal expansion coefficient and the like.
In conclusion, the kneading effect and efficiency of the scheme of the invention are obviously superior to those of the prior art, and the increased angle of the side arc section 2 of 45 degrees is the best implementation scheme.
Claims (5)
1. A powerful and efficient mixing cylinder body is characterized in that an inner cavity of the cylinder body is used for mounting a left stirring knife (4) and a right stirring knife (4) which are arranged side by side, and the axis of each stirring knife (4) moves forwards and backwards; the cross section profile of the inner wall of the cylinder body comprises two lower extrusion sections which are in one-to-one correspondence with the stirring knives (4) and are positioned below the stirring knives (4), and also comprises two vertical sections (1) which are in one-to-one correspondence with the stirring knives (4); the lower extrusion section comprises an inwards concave lower arc section (3); the method is characterized in that:
the cross-sectional profile of the inner wall of the cylinder body also comprises two side arc sections (2) which correspond to the stirring knives (4) one by one, and the circle center of each side arc section (2) is positioned at the inner side of the cylinder body;
the outer end of each lower arc section (3) is tangent and connected with the lower end of the corresponding side arc section (2), and the upper end of the side arc section (2) is connected with the lower end of the corresponding vertical section (1).
2. A powerful, high-efficiency kneading cylinder according to claim 1, characterized in that: the circle center of the lower arc section (3) is coincident with the circle center of the side arc section (2), and the inner diameter of the lower arc section (3) is equal to that of the side arc section (2); the upper end of the lower arc section (3) is equal to the axis of the stirring knife (4) in height.
3. A powerful, high-efficiency kneading cylinder according to claim 2, characterized in that: the arc angle alpha of the side arc section (2) is more than or equal to 10 degrees and less than or equal to 80 degrees.
4. A powerful, high-efficiency kneading cylinder according to claim 3, characterized in that: the arc angle of the side arc section (2) is more than or equal to 40 degrees and less than or equal to 50 degrees.
5. The powerful, high-efficiency kneading cylinder according to any one of claims 1 to 4, characterized in that: the axis of the stirring knife (4) coincides with the circle center of the corresponding lower arc section (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210877358.7A CN115138240A (en) | 2022-07-25 | 2022-07-25 | Strong efficient kneading cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210877358.7A CN115138240A (en) | 2022-07-25 | 2022-07-25 | Strong efficient kneading cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115138240A true CN115138240A (en) | 2022-10-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210877358.7A Withdrawn CN115138240A (en) | 2022-07-25 | 2022-07-25 | Strong efficient kneading cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115138240A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010125661A (en) * | 2008-11-26 | 2010-06-10 | Moriyama:Kk | Kneading machine and kneading method using the same |
| CN203484070U (en) * | 2013-09-11 | 2014-03-19 | 天津开发区四达科工贸发展有限公司 | Double-shaft paddle mixer |
| CN203876067U (en) * | 2014-04-18 | 2014-10-15 | 黄运权 | Cold-hot mixing chamber |
| CN204307541U (en) * | 2014-11-17 | 2015-05-06 | 大理东道农业产业有限公司 | A kind of feed double-shaft paddle mixer |
| CN205164550U (en) * | 2015-12-07 | 2016-04-20 | 周凤举 | Circular arc helicoid blade differential kneading machine |
| CN206778231U (en) * | 2017-06-02 | 2017-12-22 | 索通发展股份有限公司 | Kneading pot with stopper |
| CN111497188A (en) * | 2020-04-30 | 2020-08-07 | 桂林理工大学 | Plasticizing device of rubber extruder |
| CN211462986U (en) * | 2019-12-09 | 2020-09-11 | 河北捷虹颜料化工有限公司 | Kneading machine |
| CN113039047A (en) * | 2018-12-28 | 2021-06-25 | 株式会社神户制钢所 | Kneading device |
| CN217698773U (en) * | 2022-07-25 | 2022-11-01 | 山东华鹏精机股份有限公司 | Strong efficient kneading cylinder |
-
2022
- 2022-07-25 CN CN202210877358.7A patent/CN115138240A/en not_active Withdrawn
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010125661A (en) * | 2008-11-26 | 2010-06-10 | Moriyama:Kk | Kneading machine and kneading method using the same |
| CN203484070U (en) * | 2013-09-11 | 2014-03-19 | 天津开发区四达科工贸发展有限公司 | Double-shaft paddle mixer |
| CN203876067U (en) * | 2014-04-18 | 2014-10-15 | 黄运权 | Cold-hot mixing chamber |
| CN204307541U (en) * | 2014-11-17 | 2015-05-06 | 大理东道农业产业有限公司 | A kind of feed double-shaft paddle mixer |
| CN205164550U (en) * | 2015-12-07 | 2016-04-20 | 周凤举 | Circular arc helicoid blade differential kneading machine |
| CN206778231U (en) * | 2017-06-02 | 2017-12-22 | 索通发展股份有限公司 | Kneading pot with stopper |
| CN113039047A (en) * | 2018-12-28 | 2021-06-25 | 株式会社神户制钢所 | Kneading device |
| CN211462986U (en) * | 2019-12-09 | 2020-09-11 | 河北捷虹颜料化工有限公司 | Kneading machine |
| CN111497188A (en) * | 2020-04-30 | 2020-08-07 | 桂林理工大学 | Plasticizing device of rubber extruder |
| CN217698773U (en) * | 2022-07-25 | 2022-11-01 | 山东华鹏精机股份有限公司 | Strong efficient kneading cylinder |
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Application publication date: 20221004 |