Shijiazhuang Hongtao Technology Co., Ltd., located in Zhengding, Hebei Province, is a high-tech enterprise specializing in the R&D and manufacturing of industrial microwave equipment. Its **microwave drying equipment** adopts industrial 2.45GHz microwave technology, featuring high efficiency, energy saving, uniform heating and intelligent control, and is widely used in food, medicine, chemical industry, ceramics, wood, environmental protection and other industries. ## I. Working Principle - The polar water molecules inside materials vibrate rapidly under a high-frequency electromagnetic field, generating heat through friction, so that the materials are heated **inside and outside simultaneously**. - Moisture evaporates quickly without heat conduction lag, effectively avoiding cracking, deformation, scorching on the outside and dampness inside. - It also has non-thermal effects such as sterilization, enzyme inactivation and insect egg killing at low temperatures. ## II. Equipment Structure (Modular & Customizable) 1. **Furnace Body**   - Shell: 304/316 stainless steel, corrosion-resistant and easy to clean.   - Lining: High-purity alumina fiber or aluminum silicate insulation material with low heat loss.   - Structure: Composed of feeding section, microwave drying section and cooling/discharging section, with customizable length from 6 to 30 meters. 2. **Microwave System**   - Frequency: 2.45GHz (industrial standard).   - Power: 10–120kW, adjustable in multiple zones.   - Magnetrons: Water-cooled industrial grade, service life ≥ 8000 hours.   - Energy feeding: Uniform distribution from top, bottom and surrounding ports to ensure even temperature field. 3. **Conveying System**   - Types: Mesh belt, roller, chain plate or tray conveyor.   - Materials: Food-grade stainless steel, high-alumina ceramics, Teflon.   - Speed: 0.1–5m/h, adjustable by frequency converter. 4. **Control System**   - Multi-zone independent PID temperature control with precision ≤ ±3℃.   - PLC + touch screen, supporting programmable drying curves.   - Dual temperature detection: infrared sensor and thermocouple, with alarms for over-temperature, water shortage and overload.   - Automatic feeding, discharging, fault diagnosis and remote monitoring. 5. **Moisture Removal & Cooling**   - Variable-frequency exhaust fan for rapid dehumidification.   - Air cooling / water cooling, discharging temperature ≤ 50℃.   - Strict anti-leakage design in compliance with national microwave safety standards. ## III. Main Technical Features - Working temperature: 40–200℃ - Moisture reduction: from 80% down to below 5% - Energy saving: 50–70% lower than hot air drying, 40–60% lower than steam drying - Temperature uniformity: ≤ ±3℃ - Noise level: ≤ 75dB ## IV. Core Advantages 1. **High-speed drying**   Drying speed is 10–30 times faster than traditional hot air drying, shortening processing time by 70–90%. 2. **Excellent product quality**   Uniform heating inside and outside, no cracking, no deformation, no dark cores. Low-temperature drying preserves nutrition, flavor and appearance. 3. **High energy efficiency**   Microwave directly heats materials with almost no heat storage or radiation loss, greatly reducing operating costs. 4. **Green and environmentally friendly**   No waste gas, smoke or nitrogen oxides, clean and hygienic, easy to maintain. 5. **Stable and intelligent**   Fully automatic operation, simple maintenance, long service life of core components. - **Wood**: boards, wooden crafts (anti-cracking, anti-deformation) - **Environmental Protection**: municipal sludge, industrial sludge drying and reduction ## VI. Company Service Hongtao Technology provides full-process services including customized design, manufacturing, installation, commissioning, training and after-sales support. Equipment can be tailored according to material characteristics, capacity requirements, site conditions and explosion-proof demands.