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Powder surface modification machine
Application scope: Non metallic mineral fillers or pigments such as plastics, rubber, binders, etc. Materials: kaolin, talc, wollastonite, quartz powd
Product details
Product Features
There are many types of powder surface modification equipment, such as high-speed mixers, internal mixers, open mixers, single screw extruders, twin-screw extruders, etc., but most of these equipment are borrowed from chemical machinery. There are many serious problems, and in recent years, many improvements and progress have been made to address these issues. Due to the different types and properties of mixtures, the quality indicators required for mixing, dispersion, and surface modification are also different, resulting in various modification equipment with different properties. Powder surface modification machine is an inevitable product of modern high-tech and new material development, widely used in non-metallic mineral fillers or pigments such as plastics, rubber, adhesives and other modern polymer materials, polymer based composite materials, functional materials and coatings. After modification, mineral powder can not only greatly improve the compatibility between inorganic mineral fillers and organic polymer, enhance the interfacial bonding force, enhance the mechanical strength and comprehensive performance of materials, but also significantly increase the filling amount of powder fillers, reduce production costs, and endow certain special physical and chemical properties of products.
Performance advantages
Performance characteristics of powder surface modification machine
1. This unit is capable of continuous operation and production, with a large processing capacity, suitable for industrial production of various scales.
2. The utilization rate of modified agents is high, the dosage is small, the powder coating rate and activation index are high, and the energy consumption is low.
3. The equipment has both modification and dispersion functions, suitable for materials of various fineness, and has a unique modification and activation effect on materials with low false density and high density ratio, such as white carbon black, mica powder, talc powder, etc.
4. The high-speed gas-solid phase vortex mixing operation of powder and agent has high modification efficiency and basically does not damage the original particle shape of the powder.
5. Material negative pressure operation, good sealing, no dust leakage, basically no pollution, good operating environment, low labor intensity.
6. Heating and cooling are completed in one machine, without the need for separate heating and cooling systems, simplifying operation.
7. Independent fluid and non fluid dosing systems, continuous, stable, and uniform.
Structural composition
Structural composition of powder surface modification machine
1. Hopper: The material enters the hopper directly from the material warehouse, and the moisture content of the material should be less than 0.5%.
2. Feeding device: using twin-screw feeding, adjustable speed, can ensure the stability of material flow.
3. Temperature control dosing system: temperature self-control, can set the melting temperature of the drug arbitrarily, suitable for various solid and liquid forms of modified drugs.
4. Modified host: The modified host consists of three T-shaped modified cylinders, with a compact structure, high modification efficiency, and stable and reliable operation.
Precautions to be taken during the operation of the modification machine
1. The influence of impurities, non-metallic powder impurities are mainly the original impurities of raw materials and impurities generated during processing. While controlling the composition of raw material impurities, the pollution and impurity removal issues of processing equipment should also be considered.
2. The selection of surface modifiers for modification machines is crucial in the surface modification of non-metallic powders.
Working principle
The working principle of the modification machine
The powder raw material is sent to the atomization chamber above the host through the feeding and conveying system. During the conveying process, the powder is heated and dried by a specially designed heating device on the feeding conveyor. At the same time, the solid modifier is also heated and melted to a liquid state in a dedicated heating container, and then sent to the atomization chamber through the conveying pipeline.
There are two sets of nozzles in the atomization chamber, one of which has four nozzles distributed in different positions on the wall of the atomization chamber. Its function is to blow the powder material sent by the conveying system into a mist. At this point, the raw materials and modifier form a mist. Due to the effect of two sets of nozzles spraying airflow from different directions, it can be fully mixed and enter the main engine.
The host is composed of a high-speed rotating spindle, stirring rod, impact hammer, etc. The atomized material entering the host is subjected to impact, friction, shear and other effects under the high-speed stirring of the stirring rod, which enables the powder particles to fully contact and mix with the modifier. At this time, the powder material is fully coated and modified.
Technical Parameter
| Model number | Main motor power | Powder machine power | Spindle speed | production | weight | External dimensions |
|---|---|---|---|---|---|---|
| CLG-200D | 3*4 | 2.2 | 5700 | 40-150 | 1 | 3200*600*2200 |
| CLG-3/300D | 3*18.5 | 5.5 | 4500 | 500-1500 | 3 | 5800*1800*5600 |
| CLG-3/600D | 3*37 | 15-22 | 2700 | 2000-4000 | 10 | 11200*3100*6200 |
| CLG-3/900D | 3*75 | 45 | 2000 | 4000-7000 | 20 | 21000*3800*6500 |
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