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China Vacuum Calciner Suppliers: Advanced Horizontal Vertical Cabinet for Clean Chemical Fiber Components and Filter Elements

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Introducing the vacuum calciner, the cutting-edge equipment designed for cleaning chemical fiber components and filter elements, proudly made in China. This innovative device is particularly effective for cleaning standard and shaped spinnerets used in the production of polyester, nylon, and polypropylene fibers, as well as for fine and ultrafine denier spinneret assembly housings. As a leading supplier in the industry, our vacuum calciner stands out as a more advanced solution compared to traditional methods such as calcination, fluidized bed cleaning, TEG alcoholysis cleaning, and salt bath cleaning. It effectively addresses the common issues associated with open flames, excessive temperatures, and indoor pollution typically found in cleaning chambers, The vacuum calciner operates within a sealed chamber, creating a controlled vacuum atmosphere with limited fresh air. This unique environment allows chemical fiber polymers to crack and coke efficiently under low oxygen conditions. The chamber temperature is precisely maintained within the designated processing range, ensuring that cleaned components retain a spotless surface and smooth spinneret holes, Moreover, the pressure applied during vacuum cleaning of filter elements is significantly lower than that utilized in TEG alcoholysis cleaning methods, leading to an extended service life for the cleaned filter elements. The low oxygen levels in the vacuum chamber also effectively prevent damage and oxidation to the metallographic structure of the workpieces, preserving their original metallic luster. As manufacturers, we understand the importance of customization; therefore, users can select various cleaning procedures tailored to their specific process requirements. Trust our factory for reliable solutions that enhance your operations and maintain high-quality standards.

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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. Taking advantage of this characteristic, 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. 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. 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, and the smoke and ash are discharged outdoors. Even if discharged outdoors, only a small amount of carbon dioxide is discharged, and the ash carried away by the water is also very small.

    Frequently Asked Questions

    What is the core working principle of a vacuum calcining furnace?

    The furnace utilizes the thermal properties of chemical fiber polymers. These polymers melt at approximately 300℃, crack and coke above 300℃ when isolated from air, and undergo complete oxidation at temperatures exceeding 400℃ under vacuum and low-oxygen conditions.

    How is the bulk polymer removed from the workpiece surface?

    The workpiece is heated to around 300℃. At this stage, the majority of the polymer on the surface melts and flows directly into a waste collection tank located at the bottom of the furnace, leaving only a minor amount of residue in the workpiece's micropores.

    How does the final oxidation process take place?

    The furnace temperature is raised to 400-500℃. The vacuum pump is then turned on and a small amount of air is introduced. This combination fully oxidizes the remaining polymer in the micropores, converting it into carbon dioxide and water.

    What happens to the ash and water vapor generated during calcination?

    Ash and water vapor floating inside the furnace are sprayed and washed by a water spray scrubber system. They are then successfully pumped out of the furnace and carried away by the washing water.

    Is the vacuum calcination process environmentally friendly?

    Yes, the entire working process does not emit polluting gases. Only a minimal amount of carbon dioxide is discharged outdoors, and the quantity of ash carried away by the scrubbing water is also extremely small.