continuous process tanner rotary drum Interview Questions and Answers

0
100 Continuous Process Tanner Rotary Drum Interview Questions & Answers

  1. What is a continuous process tanner rotary drum?

    • Answer: A continuous process tanner rotary drum is a large, rotating cylinder used in leather tanning. It allows for the continuous processing of hides through various tanning solutions, offering increased efficiency and throughput compared to batch processing.

  2. Describe the typical construction of a rotary drum.

    • Answer: Typically constructed from stainless steel for corrosion resistance, it features a cylindrical shell with perforated walls for solution penetration. It rotates on a central axis, driven by a motor, and includes loading and unloading mechanisms.

  3. What are the advantages of using a continuous process over batch processing?

    • Answer: Continuous processing offers higher throughput, reduced labor costs, better process control (consistency), and potentially lower chemical usage per unit of leather produced.

  4. How is the rotation speed of the drum controlled, and why is this important?

    • Answer: Rotation speed is controlled by a variable frequency drive (VFD) allowing for precise adjustment. This is crucial for optimizing chemical penetration, preventing damage to hides, and ensuring even tanning.

  5. Explain the role of drum perforation in the tanning process.

    • Answer: Perforations allow for the even distribution of tanning liquors throughout the hide. The size and distribution of these holes is critical to efficiency and evenness of the tanning.

  6. What types of chemicals are commonly used in a continuous tanning drum?

    • Answer: Common chemicals include tanning agents (chromium salts, vegetable tannins), auxiliary chemicals (pH adjusters, wetting agents, fatliquors), and other processing chemicals.

  7. How is the temperature controlled within the drum?

    • Answer: Temperature is typically controlled through jacketed drums with heating/cooling systems circulating water or other heat transfer fluids.

  8. What are some common maintenance tasks for a continuous tanning drum?

    • Answer: Regular inspections for wear and tear, cleaning of the drum interior, lubrication of bearings, and checking the functionality of the drive system and temperature control.

  9. Describe the process of loading and unloading hides into the drum.

    • Answer: Hides are typically loaded via a chute or loading mechanism at one end and unloaded at the opposite end, often using a discharge system that minimizes damage to the processed hides.

Thank you for reading our blog post on 'continuous process tanner rotary drum Interview Questions and Answers'.We hope you found it informative and useful.Stay tuned for more insightful content!