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Horizontal Vertical Vacuum Calciner for Chemical Fiber Cleaning - China Suppliers & Factory Quality Equipment

The vacuum calciner is a state-of-the-art piece of equipment designed for the efficient cleaning of chemical fiber components and filter elements. This advanced machine is ideal for the cleaning of both standard and specialized spinnerets used in the production of polyester, nylon, and polypropylene fibers. Additionally, it is well-suited for cleaning fine and ultrafine denier spinneret assembly housings and filter elements, making it a superior option compared to traditional methods such as calcination, fluidized bed cleaning, TEG alcoholysis cleaning, and salt bath cleaning, Manufactured by leading suppliers in China, this vacuum calciner addresses the limitations associated with open flames, excessive temperatures, and indoor pollution in cleaning chambers. It operates within a sealed chamber where a vacuum is created with minimal fresh air supply, enabling the chemical fiber polymers to crack and coke effectively under low oxygen levels. The chamber maintains a consistent temperature within the designated process range, ensuring optimal cleaning results, Components cleaned with the vacuum calciner boast a pristine surface and smooth spinneret holes, leading to enhanced performance. Notably, the pressure applied during the vacuum cleaning process is significantly lower than that of TEG alcoholysis methods, resulting in filter elements that enjoy an extended service life. Furthermore, the low oxygen content within the vacuum chamber protects the metallographic structure of the workpieces, preserving their original metallic luster, As a trusted factory for vacuum calciner production, we offer customizable cleaning procedures tailored to meet specific process requirements, ensuring our clients receive the highest quality solutions for their cleaning needs
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    Technical Parameters

    Vacuum Calciner Working Principles

    The vacuum calcining furnace utilizes the characteristics of chemical fiber polymers that can melt at around 300℃, crack and coke when isolated from air above 300℃, and produce a variety of cracking products. Above 400℃, in the presence of a small amount of oxygen and a certain vacuum condition, they can be completely oxidized.

    1. Melting Phase (~300℃)

    The workpiece is first heated to around 300℃, so that the large amount of polymer on the workpiece surface melts and flows into the waste collection tank at the bottom, leaving only a small amount of polymer and ash in the micropores on the workpiece surface.

    2. Oxidation Phase (400-500℃)

    At this time, the furnace temperature is raised to 400-500℃ (the temperature can be set according to process requirements), and the vacuum pump is turned on and a small amount of air is introduced to fully oxidize the remaining polymer to produce carbon dioxide and water.

    3. Washing & Discharge

    The ash and water vapor floating in the furnace are sprayed and washed by the vacuum pump through a water spray scrubber and then pumped out of the furnace and carried away by water. The entire working process does not emit any polluting gas.

    Frequently Asked Questions

    FAQ How does the vacuum calcining furnace clean polymers?

    It utilizes the characteristics of chemical fiber polymers that melt at around 300℃, crack and coke when isolated from air above 300℃, and oxidize completely above 400℃ under vacuum and low oxygen conditions.

    FAQ What happens to the polymer at the initial heating stage of 300℃?

    During this stage, the majority of the polymer on the workpiece surface melts and flows into the waste collection tank at the bottom, leaving only a minor amount of polymer and ash inside the surface micropores.

    FAQ How is the remaining polymer in the micropores completely removed?

    The furnace temperature is raised to 400-500℃, the vacuum pump is turned on, and a small amount of air is introduced to fully oxidize the remaining polymer, turning it into carbon dioxide and water.

    FAQ How are ash and water vapor discharged from the furnace?

    The floating ash and water vapor are sprayed and washed by the vacuum pump through a water spray scrubber, and are then pumped out of the furnace to be carried away by water.

    FAQ Does the vacuum calciner emit polluting gases?

    No, the entire working process does not emit any polluting gas. The smoke and ash are washed and discharged outdoors, releasing only a small amount of carbon dioxide, and the ash carried away by the water is very minimal.