CN112169910A - Quick radiating ceramic mill device - Google Patents

Quick radiating ceramic mill device Download PDF

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Publication number
CN112169910A
CN112169910A CN201910596910.3A CN201910596910A CN112169910A CN 112169910 A CN112169910 A CN 112169910A CN 201910596910 A CN201910596910 A CN 201910596910A CN 112169910 A CN112169910 A CN 112169910A
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CN
China
Prior art keywords
millstone
disc
slip ring
disc device
abrasive disc
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910596910.3A
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Chinese (zh)
Inventor
朱德恩
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Guli Intelligent Equipment Co ltd
Original Assignee
Shanghai Guli Intelligent Equipment Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shanghai Guli Intelligent Equipment Co ltd filed Critical Shanghai Guli Intelligent Equipment Co ltd
Priority to CN201910596910.3A priority Critical patent/CN112169910A/en
Publication of CN112169910A publication Critical patent/CN112169910A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C7/00Crushing or disintegrating by disc mills
    • B02C7/11Details
    • B02C7/12Shape or construction of discs
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C7/00Crushing or disintegrating by disc mills
    • B02C7/11Details
    • B02C7/17Cooling or heating of discs

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)

Abstract

An aluminium alloy casing is arranged on the back of metal or ceramic silicon carbide grinding disc, the casing is hollow, cooling liquid is led in from the center and thrown out along spiral rotation, and the contact surface of the bottom of the grinding disc is treated by fluororesin. The center is magnetic fluid seal or slip ring mechanical seal, because the cooling liquid and the millstone are fully contacted for heat convection, turbulence beads (liquid drops are condensed) are continuously superposed, thereby realizing the purposes of rapid cooling and rapid heat dissipation.

Description

Quick radiating ceramic mill device
Technical Field
The invention relates to the field of food mills, in particular to the technical fields of small and medium-sized food mills, such as food low-temperature grinding of tea-making mills, flour mills, herbal mills and the like.
Background
Many granular powder materials are sensitive, high temperature is generated in grinding, the materials are rapidly oxidized and deteriorated, and cooling measures must be additionally arranged. The tradition sets up the cooling of jacket water-cooling at machine shell, but speed is slow, and the effect is poor, and the shape is with the nominal, reason:
1. the jacket is not directly contacted with the grinding disc, and a large amount of air resistance is arranged in the middle;
2. the heat conductivity coefficient of the grinding disc material is lower than 40W/m.k;
3. the heat-dissipating medium has insufficient specific heat capacity.
Disclosure of Invention
High heat conduction: alpha polycrystalline silicon carbide is sintered under no pressure, nano silicon carbide whiskers are toughened, the porosity is less than or equal to 1%, the heat conduction is 120-130W/m.k, and the hardness is 2600.
The method comprises the following steps of 440 ℃ stainless steel hot forging forming, turning, vacuum spraying titanium-plated nano-diamond 20-30 mu m on the surface, vacuum thermal diffusion at 1010 and 1070 ℃ under the condition of hot static pressure of 20-50MPa, and after nano-diamond enhancement treatment, the hardness of quenching heat treatment reaches: HRC65, heat conductivity coefficient 45W/m.k, self-lubrication, grinding disc thickness of 15mm, boundary layer of 2mm, super-hydrophobic treatment, heat exchange is greatly enhanced.
The water pan is 6061-6063T6, and the surface of the aluminum alloy is subjected to hard oxidation hole sealing treatment.
The cooling liquid enters from the axle center and exits from the edge.
The contact part of the grinding disc and the cooling liquid is treated by vortex threads, so that the heat exchange area is increased.
The contact surface of the grinding disc adopts a fluororesin PTFE coating with the thickness of 0.05-0.5 μm to form bead-shaped condensation, and the contact angle of non-stick water is 115 degrees and the contact angle (degree) of rest.
The wall surface can not be wetted by the condensate containing water or oil, the condensate forms small liquid drops on the wall surface, after the liquid drops grow up, the liquid drops continuously carry other liquid drops along the way to flow down along the wall surface under the action of gravity, meanwhile, the new liquid drops regenerate in the original path, and the phase change heat released by condensation can be directly transferred to the wall surface. The prerequisite of the dropwise condensation is that the condensate does not wet the wall surface, the contact angle is large, and the surface energy of the condensate wall material is low.
Drawings
In the figure: 1. a rotor (a rotary water containing disc) 2, a drain hole 3, a water inlet hole 4, a slip ring main body 5, a water outlet pipe 6 and a balance weight pipe;
FIGS. 1-4 are schematic structural views of the present invention;
FIG. 5 is a front view;
FIG. 6 is a side view;
FIG. 7 is a schematic view of a silicon carbide abrasive disc;
FIG. 8 is a bottom view of a silicon carbide disk;
fig. 9 is an aluminum alloy enclosure.
Detailed Description
And (3) carrying out dry pressing on the alpha polycrystalline silicon carbide by using the die, carrying out pressureless sintering, or carrying out isostatic pressing, and turning.
The bottom of the grinding disc is provided with a spiral-toothed impeller, so that the heat exchange area is increased, and turbulent heat exchange is enhanced.
The water containing disc is made of 6063T6, the surface is hard and oxidized, and the inner diameter of the disc opening is slightly smaller than the diameter of the grinding disc by 50-60 mu m.
Heating the aluminum alloy disc to 150 ℃ for heat preservation, pressing the grinding disc into the step by using a rubber hammer, and brazing and sealing.
The aluminum alloy plays the dual role of containing cooling liquid and reinforcing the ceramic grinding disc.
The grinding disc is in a spline structure and is fixed with the main shaft.
The cooling liquid is pumped into the grinding disc from the shaft center and is scattered by the three-stage impeller to form turbulent heat exchange.
Spraying PTFE-D emulsion aqueous dispersion (structural formula is-CF) with average particle diameter of 0.15-0.35 μm and concentration of 60 mass% on the bottom surface of the grinding disc2-CF2-)n) The nano diamond with 5 to 7 percent of molecular weight is strengthened to improve the strength and have excellent wear resistance.
Suspension resin (fine powder with the particle size of 20-50 μ M, the apparent density of 0.2-0.5g/mL, the average particle size of M-18 of 40 μ M, the density of 0.45g/mL, high-frequency resonance mixing with nano zirconia micro powder, hot isostatic pressing at 380-.
The rotary joint is used for water circulation of a mechanical hard sealing slip ring.

Claims (11)

1. A grinding disc device capable of dissipating heat at the highest speed is characterized in that alpha polycrystal is carbonized, pressureless sintered or isostatic pressed.
2. The disc assembly of claim 1 wherein the disc serrations are one dry press formed, two sanded, surface rasped serrations.
3. The millstone device of claim 1, wherein the millstone is made of 440 ℃ stainless steel by hot forging, secondary turning, 30-50 μm titanium-plated nano-diamond by surface spraying, vacuum thermal diffusion of nano-diamond at 1010 and 1070 ℃ under the condition of hot static pressure of 20-50MPa, and processing and quenching heat treatment.
4. The abrasive disc device according to claim 1, characterized in that the disc thickness is 15mm, the boundary layer is 2mm, and the surface layer nano-diamond dispersion enhanced PTFE (aqueous polytetrafluoroethylene solution) is treated with a fixed telephone at 350 ℃.
5. The millstone device of claim 1, wherein the millstone bottom is provided with double-section spiral insections to enhance turbulent heat exchange.
6. The disc refiner apparatus of claim 1 wherein the feed is provided by a hollow slip ring, the slip ring being journaled on the drive shaft.
7. The abrasive disc device of claim 1 wherein the coolant enters the center of the shaft and exits at the edge.
8. The abrasive disc device of claim 1 wherein the upper water tray is integral with the slip ring.
9. The millstone device of claim 1, characterized in that the machine is an integrated structure, and the millstone, the water containing disc and the multi-channel slip ring are integrally designed.
10. The abrasive disc device of claim 1 wherein the present machine employs turbulent heat exchange.
11. The abrasive disc device of claim 1 wherein the present machine employs droplet condensation technology.
CN201910596910.3A 2019-07-03 2019-07-03 Quick radiating ceramic mill device Pending CN112169910A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910596910.3A CN112169910A (en) 2019-07-03 2019-07-03 Quick radiating ceramic mill device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910596910.3A CN112169910A (en) 2019-07-03 2019-07-03 Quick radiating ceramic mill device

Publications (1)

Publication Number Publication Date
CN112169910A true CN112169910A (en) 2021-01-05

Family

ID=73915674

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910596910.3A Pending CN112169910A (en) 2019-07-03 2019-07-03 Quick radiating ceramic mill device

Country Status (1)

Country Link
CN (1) CN112169910A (en)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT504006A1 (en) * 2006-08-14 2008-02-15 Rho Best Coating Hartstoffbesc TOOLS WITH CARBON COATINGS AND METHOD FOR THE PRODUCTION THEREOF
CN101734931A (en) * 2009-12-15 2010-06-16 昌乐鑫源碳化硅微粉有限公司 Silicon carbide micropowder for pressureless-sintered silicon carbide products and production method thereof
CN102753323A (en) * 2009-12-22 2012-10-24 因诺沃特投资有限公司 Method and apparatus for rubber grinding and reclaiming
US20150290771A1 (en) * 2012-03-27 2015-10-15 Yundong Li Abrasive article and method for making the same
CN205413170U (en) * 2015-12-14 2016-08-03 丽江丰源生物科技开发有限公司 Peppery wooden leaf rubbing crusher
CN106607322A (en) * 2016-11-28 2017-05-03 东北石油大学 Long-time super-hydrophobic wear resistant ceramic coating
CN107824321A (en) * 2017-12-08 2018-03-23 韶关市超微磨机设备有限公司 A kind of liquid clasfficiator for colloid mill
CN208288117U (en) * 2018-04-17 2018-12-28 苏州兮然工业设备有限公司 Mill for the grinding of superfinishing powder
CN109622140A (en) * 2019-01-04 2019-04-16 王新民 A kind of electronic cornmill

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT504006A1 (en) * 2006-08-14 2008-02-15 Rho Best Coating Hartstoffbesc TOOLS WITH CARBON COATINGS AND METHOD FOR THE PRODUCTION THEREOF
CN101734931A (en) * 2009-12-15 2010-06-16 昌乐鑫源碳化硅微粉有限公司 Silicon carbide micropowder for pressureless-sintered silicon carbide products and production method thereof
CN102753323A (en) * 2009-12-22 2012-10-24 因诺沃特投资有限公司 Method and apparatus for rubber grinding and reclaiming
US20150290771A1 (en) * 2012-03-27 2015-10-15 Yundong Li Abrasive article and method for making the same
CN205413170U (en) * 2015-12-14 2016-08-03 丽江丰源生物科技开发有限公司 Peppery wooden leaf rubbing crusher
CN106607322A (en) * 2016-11-28 2017-05-03 东北石油大学 Long-time super-hydrophobic wear resistant ceramic coating
CN107824321A (en) * 2017-12-08 2018-03-23 韶关市超微磨机设备有限公司 A kind of liquid clasfficiator for colloid mill
CN208288117U (en) * 2018-04-17 2018-12-28 苏州兮然工业设备有限公司 Mill for the grinding of superfinishing powder
CN109622140A (en) * 2019-01-04 2019-04-16 王新民 A kind of electronic cornmill

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