Changsha One Star SZK Tunnel type Far Infrared Sterilization and Drying Machine: Technical Principles and Multidimensional Application Analysis
1、 Working principle: three-stage precise thermal control
1. Gradient heating in preheating zone
After entering the tunnel through the conveyor belt, the surface moisture evaporates rapidly under the radiation of 2-15 μ m far-infrared band, and the temperature gradient increases to 80-100 ℃ (adjustable according to the characteristics of the material), avoiding physical damage caused by thermal shock.
2. Penetrating sterilization in high-temperature sterilization zone
The main heating zone adopts a quartz tube array emitter, which instantly heats up to 200-300 ℃ and achieves synchronous sterilization of materials inside and outside through molecular resonance effect. Experimental data shows that the bacterial killing rate of glass containers such as penicillin bottles is 99.99%, and the heat penetration time is reduced by 60% compared to traditional steam sterilization.
3. Inert gas protection in cooling zone
The nitrogen replacement system quickly cools down to below 50 ℃ to prevent material oxidation and deformation. In the case of lithium battery electrode drying, this design stabilizes the porosity of the electrode material within ± 2%.
2、 Core Advantage: Breakthrough in Four Dimensional Efficiency
1. Excellent energy efficiency ratio
The direct conversion rate of far-infrared reaches 92%, which is 40% more energy-efficient than hot air drying. According to the application of a certain traditional Chinese medicine enterprise, the energy consumption cost of drying Angelica sinensis has decreased from 0.8 yuan/kg to 0.48 yuan/kg.
2. Intelligent process adaptability
The PLC system supports 16 sets of temperature curve storage and can switch between drug sterilization (200 ℃/15min) and food dehydration (120 ℃/45min) modes with one click, with a switching time of ≤ 3 minutes.
3. Clean production guarantee
The whole machine complies with GMP standards, and the laminar flow purification module ensures that the number of dust particles in the working area is ≤ 3520/m ³ (≥ 0.5 μ m), meeting the sterile requirements of the pharmaceutical industry.
4. Cross scenario compatible design
The modular structure supports the expansion of vacuum (-0.095MPa) or microwave (2450MHz) units, such as in PCB ink curing scenarios where VOCs emissions are only 1/5 of traditional equipment.
3、 Industry Applications: Empirical Studies in Three Major Fields
1. Pharmaceutical manufacturing
The sterilization capacity of penicillin bottles reaches 12000 bottles/hour, and the residual detection value of damp heat destructive protein is less than 0.1EU/mg, which meets the requirements of the Chinese Pharmacopoeia 2025 edition.
2. Food processing
It only takes 25 minutes for the moisture content of nuts to decrease from 18% to 5% during continuous drying. The increase in peroxide value is controlled below 0.02 meq/kg, and the shelf life is extended by 30%.
3. New energy materials
The drying speed of the polarizer has been increased to 8m/min, and the coating peel strength retention rate is>95%, which helps to increase the annual production capacity of BYD factory in Qinghai by 12%.