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Technology for granulating powder

A powder and system technology, applied in the direction of granulation of special binders, etc., can solve the problems of high mechanical performance requirements, poor surface finish, and low sphericity of particles, and achieve low equipment requirements, smooth surface, and high ball formation rate. Effect

Active Publication Date: 2011-06-29
SUNRESIN NEW METERIALS CO LTD XIAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The current methods for producing fine particles are complicated processes requiring expensive machinery or long periods of time. However this new technology can produce finer sizes without these drawbacks.

Problems solved by technology

This patent describes various ways to enhance the functionality of powders when mixed together without causing them to lose their effectiveness due to factors like moisture content, temperature fluctuations, impact forces caused by windings, vibrating noises, and impurities introduced during manufacturing processes. To address these issues, this patented solution involves combining multiple techniques including sintering grinding, press pellet formation, thermal compression bonding, spay fusion, water injection, and others.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Weigh 3g of hydroxyethyl cellulose, heat to dissolve in 240mL deionized water, add 80g of acrylamide and 16g of N,N-methylenebisacrylamide to dissolve completely, then add 100g of zirconium dioxide powder to make the powder The solid was dispersed evenly in the solution, and finally 0.4 g of ammonium persulfate was added and stirred evenly. Add 1200mL of chlorobenzene and 36g of Span-40 into a clean 3000mL three-necked glass reactor, and stir to dissolve the Span-40 completely. Slowly pour the above-mentioned water phase containing zirconia powder into the three-port reaction kettle, adjust the stirring speed so that the particle size of the balls is between 0.3mm-1mm, then control the speed unchanged, slowly raise the temperature to 60°C and keep it for 3 hours to make the balls The beads were solidified, and then the temperature was raised to 90°C for 3 hours to complete the reaction. After extraction and sieving, 250 g of spherical particles with a qualified particl...

Embodiment 2

[0025] Weigh 2.4g of carboxymethylcellulose, heat to dissolve in 240mL of deionized water, add 200g of acrylamide and 40g of N,N-methylenebisacrylamide to dissolve completely, then add 360g of zirconium dioxide powder to make The powder is evenly dispersed in the solution, and finally 4.8 g of ammonium persulfate is added and stirred evenly. Add 1200mL chlorobenzene and 120g Span-40 into a clean 3000mL three-necked glass reactor, stir to dissolve the Span-40 completely. Slowly pour the above-mentioned water phase containing zirconia powder into the three-port reaction kettle, adjust the stirring speed so that the particle size of the balls is between 0.3mm-1mm, then control the speed unchanged, slowly raise the temperature to 60°C and keep it for 3 hours to make the balls The beads were solidified, and then the temperature was raised to 80° C. for 5 hours to complete the reaction. After extraction and sieving, 600 g of spherical particles with a qualified particle size were o...

Embodiment 3

[0027] Weigh 0.6g of hydroxyethyl cellulose, heat to dissolve in 120mL of deionized water, add 10g of acrylamide and 2g of N,N-methylenebisacrylamide to dissolve completely, then add 6g of zirconium dioxide powder to make The powder is evenly dispersed in the solution, and finally 0.3 g of ammonium persulfate is added and stirred evenly. Add 1200mL of chlorobenzene and 36g of Span-40 into a clean 3000mL three-necked glass reactor, and stir to dissolve the Span-40 completely. Slowly pour the above-mentioned water phase containing zirconia powder into the three-port reaction kettle, adjust the stirring speed so that the particle size of the balls is between 0.3mm-1mm, then control the speed unchanged, slowly raise the temperature to 60°C and keep it for 3 hours to make the balls The beads were solidified, and then the temperature was raised to 90°C for 3 hours to complete the reaction. After extraction and sieving, 25 g of spherical particles with a qualified particle size were...

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Abstract

The invention relates to a technology for granulating powder. The technology comprises the following steps of: uniformly dispersing the powder into a liquid phase consisting of an adhesive, a tackifier and a dispersion medium to obtain a dispersion phase; selecting a system which is incompatible with the dispersion medium as a continuous phase; and suspending the dispersion phase into the continuous phase to form spherical particles, and curing the spherical particles to obtain the spherical particles of the powder. The used powder is an organic matter, an inorganic matter or a multielement mixture; the powder is prepared into the spherical particles, so the size range of the spherical particles can be changed from the micron level to the millimeter level as required; the prepared spherical particles still can keep the property of the original powder; the spherical particles are formed under the action of a shearing force and a surface tension; and the preparation of the spherical particles can be performed in glass, enamel or stainless steel reaction kettle with a stirring function and special granulation equipment is not needed.

Description

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Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Owner SUNRESIN NEW METERIALS CO LTD XIAN
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