Laboratory low-temperature ultrafine grinder

Jinan Dawei Machinery Co., Ltd. is a new technology enterprise specializing in the research and development, design, production, and sales of advanced cellular level ultrafine grinding equipment.

The company specializes in micro (nano) Rice noodles technology, process, equipment and technical services, and undertakes the research of related topics of the Chinese medicine pharmaceutical powder engineering department. The vibrating ultrafine crusher was successfully developed in 1996, and technical engineers from the company's R&D department participated in the design and development of the vibrating ultrafine crusher. Until now, we have been committed to the research and development, design, updating and improvement of ultrafine grinding equipment and cell wall breaking equipment. From the single XDW-6 series and XDW-F (L) 100 series models and specifications, it has developed into the current XDW-2 series, XDW-6 series, XDW-9 series, XDW-15 series, XDW-30, XDW-40 series, XDW-70 series, XDW-F100 series, XDW-L100 series, XDW-L200 series, XDW-L400 series and other models and specifications for users to choose from. From the original pharmaceutical grade stainless steel material, a new ceramic series equipment with zero metal mixing has been developed to meet the requirements of customers' products; Known as "green ultrafine grinding equipment and technology".

Laboratory low-temperature ultrafine grinderBelonging to the fourth generation vibration mill, it has the characteristics of high crushing efficiency, high wall breaking rate, low crushing temperature (temperature controllable), crushing, no residue residue, fully enclosed operation, and low material loss. The particle size of the powder can reach 1-0.1 μ m, and the cell wall (membrane) breaking rate is over 98%. Nowadays, Dawei ultrafine grinding and cell wall breaking technology have been widely used in industries related to powder applications, such as pharmaceuticals (including veterinary drugs and pesticides), food (food), cosmetics, chemical building materials, metallurgical energy, electronic environmental protection, and resources, and have gained a wide range of users' recognition and reputation.

Laboratory low-temperature ultrafine grinderThe working principle is to fill the grinding medium, such as hard material balls, rods or columns, in the grinding cylinder (crushing chamber), and the grinding cylinder produces circular vibrations in the clockwise and counterclockwise directions as shown in Figure 1 under the action of external excitation force. The strong vibration of the grinding cylinder causes the medium inside the grinding cylinder to undergo a throwing motion. Under the action of this throwing motion, each medium produces a rotation in the same direction as the circular vibration. At the same time, the medium group also produces 3-5 low-frequency rotations opposite to the circular vibration. So the medium sometimes disperses and sometimes collides with each other, producing a positive impact force p and a lateral shear force L on the material as shown in Figure 2. The material is finely ground, broken, and crushed under the impact, compression, and shear forces of P and L.

Laboratory low-temperature ultrafine grinderThe series of devices have the following characteristics

The parts in contact with the material are all polished stainless steel, which is a universal material for medical and food machinery (can also be changed to other metal materials according to user requirements), to avoid the mixing of heavy metals such as arsenic, cadmium, mercury, lead, copper, etc.

2. Cleanliness and hygiene: Smooth inner and outer surfaces, versatile use of one machine, reduced pollution, and reduced cleaning workload; The crushing process is fully enclosed without dust spillage, fully improving the working environment, and effective ingredients are not lost.

3. Adopting a composite (transparent) soundproof cover greatly reduces noise.

4. Easy to disassemble (assemble), easy to clean, and easy to change materials. Can be cleaned and disinfected with water, compressed air, alcohol, steam, etc.

5. Easy to operate: Capacity adaptation, ensuring material discharge, easy operation and material replacement.

6. Easy maintenance: compact structure, small footprint, and convenient maintenance.

7. Improving the environment: Fully enclosed operations with dust spillage, no loss of active ingredients, and no generation of drug residues can improve the working environment.

8. Efficiency: Crushing, no residue left. The bidirectional effect of high-speed impact force and shear force shortens the crushing time and improves the crushing efficiency.

9. Broad spectrum adaptation: Suitable for any fibrous, high toughness, high hardness, or moisture content material. Materials that require breaking of cell walls, such as pollen and other spore materials, have a breaking rate of over 98%. Adapt to both dry and wet crushing simultaneously. Water, alcohol, or other liquids can be added during wet crushing.

10. Temperature controllable: Through configuration, micro crushing can be carried out at high temperature, room temperature, and low temperature, which can maintain the original physicochemical properties and active ingredients of the material. Inject cold water into the jacket on the outer wall of the grinding cylinder. The crushing temperature can be controlled by adjusting the temperature and flow rate of the cooling water. Low temperature crushing, the freezing system can reach a low temperature of minus 35 ℃ (low-temperature configuration).