Internal stress self explosion auxiliary crushing method

A technology of internal stress and self-explosion, which is applied in the fields of powder transportation, pharmaceutical formulations, medical preparations containing active ingredients, etc., can solve difficult problems such as pearl nano-crushing, achieve pollution-free low-cost production, simple operation, and realize nano effect

Inactive Publication Date: 2007-04-11
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, the special structure of pearl organic-inorganic layered hybrid makes it have extraordinary strength and toughness, and the fracture form and mechanism are complex and special, and its fracture work is pure CaCO 3 It is difficult to use the existing crushing equipment to directly and pollution-free realize the nano crushing of pearls

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0050] Example 1: Carrying out nano-crushing under the assistance of internal stress self-explosion and self-cracking of pearls

[0051] 1. Coarse crushing: the raw pearls are subjected to strong shearing on the coarse crushing machine, and the pearls are crushed into pearl powder with a particle size of about 50 mesh;

[0052] 2. Cold shock treatment: quench the pearl powder with liquid nitrogen for 10 minutes;

[0053] 3. Nano-crushing treatment: further nano-crushing treatment on ultra-fine crushing equipment;

[0054] 4. Drying treatment: drying on drying equipment;

[0055] 5. Sterilized packaging.

Embodiment 2

[0056] Embodiment 2: Carrying out nano-crushing under the assistance of internal stress self-explosion and self-cracking of pearls

[0057] 1. Coarse crushing: the raw pearls are subjected to strong shearing on the coarse crushing machine, and the pearls are crushed into pearl powder with a particle size of about 50 mesh;

[0058] 2. Immersion water treatment: soak the pearl powder treated in the previous step in 80°C water for 6 hours, and apply ultrasonic oscillation;

[0059] 3. Cold shock treatment: quickly filter out the external moisture of the pearl powder processed in the previous step (note that the internal moisture of the pearl powder should be retained as much as possible), and immediately perform liquid nitrogen quenching treatment on it for 20 minutes;

[0060] 4. Beating: Mix the pearl powder treated in the previous step with deionized water in a beater to make a slurry;

[0061] 5. Nano crushing treatment: carry out nano crushing in the high-pressure homogeniz...

Embodiment 3

[0064] Embodiment 3: Carrying out nano-crushing under the assistance of internal stress self-explosion and self-cracking of pearls

[0065] 1. Coarse crushing: the raw pearls are subjected to strong shearing on the coarse crushing machine, and the pearls are crushed into pearl powder with a particle size of about 100 mesh;

[0066] 2. Immersion water treatment: soak the pearl powder processed in the previous step in 80°C water for 6 hours (the mass ratio of pearl powder to water is 1:3), and apply ultrasonic oscillation;

[0067] 3. Freezing and icing treatment: Use a rigid container to pressurize and seal the above impregnated water slurry, and then freeze it to below 0°C on a refrigeration device to freeze it for 30 minutes;

[0068] 4. Beating: Mix the pearl powder treated in the previous step with deionized water in a beater to make a slurry;

[0069] 5. Nano-crushing treatment: Nano-crushing is carried out in the high-pressure homogenizer, and other patented methods can ...

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Abstract

The present invention relates to crushing technology for mineralized biomass and is internal stress explosion aided crushing method. Based on the differences between the organic matter and inorganic matter inside the mineralized biomass in thermal expansion coefficient and water immersion capacity, the mineralized biomass is applied with thermal shock and water soaking, so as produce great internal stress and thus spontaneous explosion and cracking. The present invention may be used in the pre-treatment of superfine crushing mineralized biomass, such as pearl, and has the advantages of simple operation, no pollution, low cost and other advantages.

Description

technical field [0001] The invention belongs to the technical field of crushing of biomineralization products, and in particular relates to a method for assisting crushing of biomineralization products by internal stress self-explosion by comprehensively utilizing cold shock, heat shock treatment and the thermal shrinkage and cold expansion of ice water. Background technique [0002] Natural organic and inorganic mineralization products, including pearls, mussel shells, bones, corals, ivory, horns, etc., are widely used in pharmaceuticals, beauty, health care and other fields. In order to improve the absorption and utilization rate of the human body, these mineralization products are generally used in the form of powder in practical applications, and as the particle size of the powder decreases, the utilization rate can be significantly improved. Therefore, the ultrafine pulverization or even nano-crushing of biomineralization products is the long-term goal of people's unrem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B02C19/18A61K35/56A61K9/14B02C19/06A61K35/618
Inventor 申玉田朱静
Owner TSINGHUA UNIV
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