A high-speed mixer is a device that uses a high-speed rotating stirring blade or rotor to achieve uniform mixing, dispersion, emulsification, dissolution, and other operations of materials in a short period of time. It is widely used in various industries such as chemical, food, pharmaceutical, building materials, plastics, coatings, and new energy. Its core function revolves around "efficient mixing" and has multiple extension functions. The following is a detailed analysis:
1、 Core function: Efficient mixing and dispersion
uniformly mixed
Principle: By using high-speed rotating stirring blades (such as serrated or turbine type) to generate strong shear forces and convection, different components of materials (such as solid solid, solid liquid, liquid liquid) can be uniformly mixed at the molecular or microscopic level in a short period of time.
Application Scenario:
Chemical industry: mixing of pigments and resins, dispersion of catalysts and carriers.
Food industry: mixing of flour and additives, uniform distribution of milk powder and sugar powder.
Pharmaceutical industry: mixing of active ingredients and excipients, preparation of granules.
Quickly dispersing
Principle: The shear force of high-speed stirring blades can break material aggregates (such as powder clumps, liquid droplets), dispersing them into small particles or droplets, increasing the contact area.
Application Scenario:
Coatings industry: dispersion of titanium dioxide in resin, preparation of latex paint.
Plastic industry: dispersion of masterbatch and plastic particles, uniform distribution of fillers (such as calcium carbonate).
New energy industry: dispersion of positive and negative electrode materials (such as graphite, lithium iron phosphate).
2、 Extended functions: emulsification, dissolution, and reaction promotion
Emulsification function
Principle: Two immiscible liquids (such as oil and water) are broken into tiny droplets by high-speed stirring, and the structure of lotion is stabilized by emulsifier.
Application Scenario:
Food industry: preparation of salad dressing and mayonnaise.
Cosmetics industry: emulsification of lotion and face cream.
Chemical industry: emulsification of lubricating oil and cutting fluid.
Dissolving function
Principle: High speed stirring accelerates the diffusion and dissolution process of solutes in solvents, shortening the dissolution time.
Application Scenario:
Pharmaceutical industry: dissolution of pharmaceutical raw materials in solvents.
Food industry: dissolution of sugar and salt in liquids.
Chemical industry: dissolution of polymers in organic solvents.
Reaction promotion
Principle: By enhancing mass and heat transfer processes through mixing, the reaction rate and uniformity are improved, making it suitable for systems that require rapid reactions.
Application Scenario:
Chemical industry: polymerization reaction, neutralization reaction.
Food industry: Enzymatic hydrolysis reaction, mixing of materials before fermentation.
New energy industry: rapid reactions in battery material synthesis.
3、 Special function: degassing and modification
Degassing function
Principle: During high-speed mixing, bubbles in the material are broken and expelled due to shear force, and the vacuum system can further extract gas to reduce the air content in the material.
Application Scenario:
Plastic industry: eliminate bubbles in plastic particles, improve product density and strength.
Food industry: Remove bubbles from jam and honey to prevent spillage during packaging.
Chemical industry: Preparation of bubble free adhesives and sealants.
Material modification
Principle: The physical properties of materials, such as particle size, specific surface area, and flowability, are altered through high-speed mixing mechanical actions such as shear and friction.
Application Scenario:
Building materials industry: changing the particle distribution of cement and gypsum to improve construction performance.
Plastic industry: Improving plastic strength through filling modification (such as adding fiberglass).
New energy industry: Optimize the particle size distribution of battery materials to enhance electrochemical performance.
4、 Structural advantages support multifunctional implementation
The multifunctionality of high-speed mixers depends on their core structural design:
High speed agitator blade
Serrated, turbine or blade design, providing strong shear force and convection to meet the mixing needs of different materials.
Example: The paint industry commonly uses serrated blades to break pigment aggregates.
Adjustable speed control
Adjust the mixing speed (usually 500-3000rpm) through a frequency converter to match the mixing process requirements of different materials.
Example: Low speed mixing of solid powders, high-speed dispersion of liquid additives.
Sealing and Vacuum System
Mechanical or magnetic seals prevent material leakage, and the vacuum system supports degassing function.
Example: The plastic industry uses vacuum mixers to eliminate bubbles.
Heating/cooling jacket
Adjust the temperature of the material through thermal oil or steam to control the reaction rate or dissolution process.
Example: The chemical industry accelerates polymerization reactions under heating conditions.
5、 Industry application cases
chemical industry
Scenario: Mixing pigments and resins to prepare colorants.
Function: High speed dispersion of pigment aggregates to ensure uniformity and stability of the color paste.
food industry
Scenario: Mixing milk powder with probiotics.
Function: Low temperature and high-speed mixing to prevent the inactivation of probiotics and achieve uniform distribution of active ingredients.
new energy industry
Scenario: Preparation of positive electrode materials for lithium-ion batteries.
Function: High speed mixing of lithium iron phosphate and conductive agent, optimizing particle size distribution and conductivity.
building materials industry
Scenario: Mixing of dry mortar.
Function: Uniformly mix cement, sand, and additives to improve construction performance and strength.