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Technology for crushing medium material by using high speed airflow

A technology of high-speed airflow pulverization and high-speed airflow, which is used in the field of material pulverization to achieve the effect of narrow particle size distribution, good quality of culture medium and fine particle size of materials

Inactive Publication Date: 2014-10-22
上海源培生物科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the existing problems, the present invention aims to provide a process for crushing culture medium materials using high-speed airflow

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0008] Embodiment 1, using high-speed air flow to pulverize amino acids. The particle size range of the amino acid is 0.020-200.000 μm; the particle refractive index is 1.530; the particle absorption rate is 0.1; the shading degree is 3.62%; the following steps are included:

[0009] Step 1: Add the amino acid material into the crushing chamber of the jet mill, and set the particle size requirements;

[0010] Step 2: The high-speed airflow generated by several nozzles in the airflow pulverization chamber impacts the amino acid material, and the airflow speed is 2m / s; the amino acid material collides with each other under the action of the high-speed airflow, rubs against each other to break, and realizes ultrafine pulverization;

[0011] Step 3: Through the classification of the classifier, the amino acid materials that meet the particle size requirements are discharged and collected with the airflow; the coarse particles are returned to the crushing chamber and continue to be...

Embodiment 2

[0014] In the second embodiment, the amino acid in the first embodiment is also subjected to high-speed jet milling. The particle size range of the amino acid is 0.020-200.000 μm; the particle refractive index is 1.530; the particle absorption rate is 0.1; the shading degree is 3.62%; the following steps are included:

[0015] Step 1: Add the amino acid material into the crushing chamber of the jet mill, and set the particle size requirements;

[0016] Step 2: The high-speed airflow generated by several nozzles in the airflow pulverization chamber impacts the amino acid material, and the airflow speed is 2m / s; the amino acid material collides with each other under the action of the high-speed airflow, rubs against each other to break, and realizes ultrafine pulverization;

[0017] Step 3: Through the classification of the classifier, the amino acid materials that meet the particle size requirements are discharged and collected with the airflow; the coarse particles are returne...

Embodiment 3

[0020] In the third embodiment, the amino acid in the first embodiment is also subjected to high-speed jet milling. The particle size range of the amino acid is 0.020-200.000 μm; the particle refractive index is 1.530; the particle absorption rate is 0.1; the shading degree is 3.62%; the following steps are included:

[0021] Step 1: Add the amino acid material into the crushing chamber of the jet mill, and set the particle size requirements;

[0022] Step 2: The high-speed airflow generated by several nozzles in the airflow pulverization chamber impacts the amino acid material, and the airflow speed is 2m / s; the amino acid material collides with each other under the action of the high-speed airflow, rubs against each other to break, and realizes ultrafine pulverization;

[0023] Step 3: Through the classification of the classifier, the amino acid materials that meet the particle size requirements are discharged and collected with the airflow; the coarse particles are returned...

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Abstract

The invention relates to a technology for crushing a medium material by using high speed airflow. The technology comprises the following steps: 1, adding the medium material into an airflow crusher crushing chamber, and setting a granularity requirement; 2, impacting the medium material by high speed airflows generated by a plurality of nozzles of the airflow crushing chamber to make the medium material mutually bumped and rubbed under the action of the high speed airflows and crushed in order to realize micronization; and 3, separating through a grader, discharging and collecting the medium material with qualified granularity with airflow, returning coarse grains to the crushing chamber, and continuously crushing until the preset granularity requirement is met. Compared with the prior art, the technology has the advantages of fine granularity and narrow and uniform particle size distribution of the crushed material, and no influences on the activity of temperature-sensitive components due to the crushing temperature not exceeding 40DEG C. The particles are fine, so the prepared medium has good dissolvability and good quality. A totally closed self bump crushing mode adopted in the invention reduces the pollution possibility.

Description

technical field [0001] The invention relates to a process for crushing materials, in particular to a process for crushing culture medium materials by high-speed air flow. Background technique [0002] When making the culture medium, at present, the ball milling method is basically used to pulverize the material. The ball milling method has the advantages of large output and simple process, but it also has the disadvantages of relatively large particle size and unevenness of the crushed material. And heat will be generated during the crushing process. This heat can affect the activity of certain heat-sensitive components, thereby affecting the quality of the medium. Now part of the use of screen method or high-speed physical grinding method to pulverize the medium material, the pulverization process will also generate heat, and there are also problems such as instability of heat-sensitive products and coarser particles of the finished product. [0003] The high-speed jet p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B02C19/06
Inventor 孙奇威
Owner 上海源培生物科技股份有限公司
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