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Powder surface coating 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
The powder surface coating machine is an inevitable product of modern high-tech and new material development. In industry, it is commonly referred to as a wrapping machine. Powder surface coating machines are 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 powders can not only greatly improve the compatibility between inorganic mineral fillers and organic polymer materials, increase interfacial bonding strength, 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. However, most ordinary non-metallic mineral materials have different interfacial properties and poor compatibility with organic polymer matrices. Direct or extensive filling can lead to a decrease in some mechanical properties of the material. Therefore, surface modification of inorganic mineral fillers is very important. The unique modification chamber design of the modifier combines modification and depolymerization functions, suitable for the modification of various materials such as heavy and light calcium carbonate, various kaolin, talc, wollastonite, quartz powder, mica, white carbon black, titanium dioxide, zinc oxide, aluminum oxide, magnesium hydroxide, barium sulfate, illite, pyrophyllite, tremolite, etc., all of which have good surface modification effects.
Performance advantages
Performance characteristics of powder surface coating 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
Structure composition of powder surface coating 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
Working principle of powder surface coating machine
The material enters the modifier through the feeding system, and the modifier is added by the metering pump. The materials and chemicals are subjected to several high-speed mixing processes within the modification machine, while utilizing the heat generated by the high-speed movement of the equipment and materials to complete the surface coating modification of the powder by the chemicals. The finished product is collected by the negative pressure collection system at the rear end. 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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