Herb drying machine with mature technology

The drying of traditional Chinese medicinal materials affects their appearance, color, taste, and efficacy components. Therefore, when using a new air energy-saving drying room for Chinese medicinal materials, it is crucial to select an appropriate drying machine and adjust the optimal drying process parameters. Air energy-saving drying machines for Chinese medicinal materials can effectively control temperature and humidity, and on-site installation by manufacturers can enhance the drying quality of the materials.

Using an air energy herbal medicine drying machine, as the hot air flows evenly and steadily over the surface of the herbal medicine, a heat transfer driving force is formed between the hot air of higher temperature and the herbal medicine of lower temperature. The air then transfers the heat to the herbal medicine to be dried by convection, causing the moisture inside the herbal medicine to vaporize and be carried away. This is the moisture removal process of the air energy heat pump for drying herbal medicine. Since each herb has a different initial moisture content, the amount of moisture removed during the drying process is also required. For example, in the drying of goji berries, the fresh fruit has a moisture content of up to 80%, but moisture removal is not allowed during the initial warming stage. However, when the temperature reaches 45°C, a large amount of moisture needs to be removed, followed by a slight reduction in moisture removal until uniform moisture removal is achieved. This process involves four stages of different temperature and humidity settings, totaling approximately 25 hours, to produce a batch of high-quality goji berries, with a large drying capacity and energy savings. Moisture control in the herbal medicine drying room.

Among tens of thousands of Chinese herbal medicines, herbal medicines account for the majority. As natural plants, the majority of them require immediate drying and processing after harvesting to ensure longer storage. Depending on the specific parts of the herbal Chinese medicinal materials, different drying and processing methods are employed.

Here are a few examples: Construction of sulfur-free Chinese herb drying rooms, for flower-based herbs, after harvesting, they should be spread out in a well-ventilated area for air drying or quickly dried at low temperatures to prevent the loss of active ingredients and maintain a rich aroma. Examples include safflower, honeysuckle, rose, and chrysanthemum.

For coarse and thick root-like herbs like lettuce root, they should be sliced fresh before drying; for herbs that are difficult to peel after drying, such as Platycodon grandiflorus, the bark should be scraped off fresh. For herbs rich in starch and juice like Gastrodia elata, Rehmannia glutinosa, Polygonatum sibiricum, Polygonatum odorum, and Polygonum multiflorum, they should be steamed fresh before slicing and drying. Some types, like Radix adenosae and Radix Cynanchi atrati, should be briefly scalded in boiling water first, then peeled, washed, and dried; for Salvia miltiorrhiza and芍药, they must be boiled in boiling water, then repeatedly sweating to ensure complete drying.

The drying process is a highly energy-consuming one. During this process, the drying of traditional Chinese medicinal materials after harvest is a primary processing step. Therefore, under the conditions of the drying technology, the level of automation, production costs, and overall utilization rate of the herb drying machine are also important factors to consider for users.

The air-source heat pump herb drying machine offers moderate investment costs, lower energy consumption, no environmental pressure, and better drying quality for thermosensitive materials like herbs. It can meet the drying process requirements of different types of herbs with high levels of intelligence and automation, eliminating the need for constant supervision and saving labor costs. The drying process is gentle, with a temperature range of 10°C to 75°C that can be freely set, effectively preserving the active ingredients in the herbs. Through drying tests and practical applications, the average energy efficiency ratio of the air-source heat pump herb drying machine can exceed 4.0, making it highly energy-saving. Versatile in use, it is suitable for drying most herbs and has also been applied in food, agricultural products, and chemical products.

What are the performance characteristics of the herb drying machine equipment?

1. This dryer boasts high thermal efficiency and even heat dissipation, leading to energy savings. By using thermal oil as the heat source, the oil temperature in the dryer can be raised to 200-400 degrees Celsius with minimal fuel, and the cooling rate of the oil is slow, resulting in less heat loss. This not only saves energy but also reduces energy consumption and improves the dryer's thermal efficiency.

2. Uniformly heats dry materials, achieving excellent drying results. The oil channels on the finned tube of the heat-conducting oil are in an S-shape, thus minimizing the temperature difference at the head and tail of the finned tube. As a result, the materials are heated uniformly, leading to superior drying performance.

3. The dryer utilizes a flip-type drying chain. Materials are transported to the unloading area, where the damper moves along the unloading track. The material on the damper is poured into the lower drying chain row, increasing the drying distance from the original 2 layers to 4 layers (i.e., from 2 to 4), thereby extending the drying time, saving material handling time, reducing heat loss, and improving the material drying speed.

4. The reversing chain is made of round-hole heat-resistant steel, featuring high strength, resistance to deformation, and good breathability.

The chain is driven by a worm gear reducer, featuring a compact mechanical structure, low noise, stable operation, high transmission efficiency, and long service life.

6. Equipped with an automatic slag removal system at the bottom, the slag remover automatically outputs material particles, achieving automation and saving labor.

7. The heat source is inside the Chinese herb drying machine, allowing for air circulation without the need for a high-power fan.

8. The induced draft fan draws in and recycles hot air. On one hand, it accelerates the circulation of hot air for enhanced drying efficiency. On the other hand, it can be recycled to save energy and reduce energy consumption.

9. Heat transfer oil circulates within the finned tubes without direct contact with the material, maintaining the material dry and clean. It prevents the possibility of sparks being carried into the dryer by the heating of the hot air furnace.

10. The temperature digital display unit is installed inside the traditional Chinese medicine turning and drying machine, facilitating the control and monitoring of the internal temperature.

11. The dryer is equipped with an automatic tensioning device, ensuring smooth operation of the turntable chain, which can rotate freely, thus solving issues such as chain dropping, jamming, and misalignment.

12. The exterior walls are constructed with new thermal insulation materials, offering excellent thermal performance, energy-saving, and a long service life.

Each part of the body is equipped with observation doors for easy observation and maintenance.

14. The Chinese medicine drying equipment ensures the color and shape of the herbs.

Advantages of Traditional Chinese Medicine Drying Machines

1. Utilizes clean energy, high level of automation; no manual labor required. Dry medium is pollution-free, completely eliminating safety hazards, and energy-saving and environmentally friendly.

2. Pulsed airflow technology significantly enhances drying uniformity and shortens the drying cycle.

3. Utilizes medium and low-temperature drying method, resulting in dried materials with good color, minimal deformation, low nutrient loss, no pollution, excellent quality, and good moisture replenishment, fully meeting the hygiene requirements for food and pharmaceutical products.

4. Automatic control allows for the setting of different drying process curves based on the drying requirements of various materials, ensuring high-quality drying results.

5. Traditional drying processes integrated with automation technology, fully absorbing the advantages of traditional hot air drying, achieving high-quality drying operations.

1. Delay in purification, tendering, and selection of superior seedlings has led to inconsistent quality of Chinese medicinal materials.

2. Excessive pesticide residues and harmful heavy metal content in traditional Chinese herbs

3. Unreasonable exploitation and development; rapid depletion of wild resources