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Analysis of heat pump application in the tobacco industry

Views: 259     Author: Lydia     Publish Time: 2023-11-10      Origin: Site


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Analysis of heat pump application in the tobacco industry

Heat pump drying technology has the advantages of energy saving and consumption reduction, high drying quality, environment friendliness and high degree of automation, and has been widely used and developed in the field of industrial and agricultural drying.

Tobacco, as a common item in people's lives, its production process is unknown. Today, we will unveil the mystery of tobacco, introduce the production process of tobacco, and explore the importance of heat pump dryers in tobacco drying.

The use of air energy heat pump heating method to dry tobacco leaves has a high heat efficiency ratio

In addition, with the hot air circulation, not only does the system have a high heat utilization rate, but also the temperature and humidity inside the tobacco room are uniform, with smooth ventilation and moisture removal, which is beneficial for the tobacco leaves to turn yellow more fully before turning into fixed color, improving the quality of the tobacco leaves. Moreover, by keeping the box sealed, the CO2 released from the tobacco leaves increases the content of CO2 in the box, which is conducive to the yellowing of the tobacco leaves and the formation of aroma substances, thereby improving the internal and external quality of the cured tobacco leaves and improving the aroma quality of the tobacco leaves!

We recommend using a heat pump dryer for tobacco leaves.

The heat pump mentioned here is essentially a heat boosting device. The high-temperature heat pump dryer unit uses the inverse Carnot principle to absorb heat from the surrounding environment and transfer it to the heated object (object with higher temperature). Its working principle is opposite to the refrigeration mechanism principle, and both operate according to the inverse Carnot cycle principle. The former increases the temperature while the latter decreases the temperature. Heat pump drying first has an environmental protection effect, and secondly, the energy efficiency ratio can reach 1:3, which means that the output of one degree of electricity can generate three degrees of electricity.

The operation of drying is not complicated, and now the main drying systems used are the pot furnace drying system and the heat pump drying system. The drying system of the boiler burns natural gas and coal, which can pollute the environment and does not meet a national standard. Recommending the use of solar or air powered drying systems for energy conservation and environmental protection is also a sign that caters to this era of energy conservation and environmental protection. Tobacco leaf baking is a complex physiological and biochemical process that is accompanied by physical changes.


Among them, physical changes refer to the continuous vaporization of water inside tobacco leaves and the discharge of tissue, causing the tobacco leaves to gradually dry; Physiological and biochemical changes are the most fundamental and important changes, and they are extremely complex. They include the entire process of decomposition, transformation, and consumption of tobacco leaf contents by fresh tobacco leaf tissue cells under the action of respiratory enzymes, hydrolases, oxidoreductases, etc. The principle of baking is to study the basic laws of this process, in order to develop artificial control measures, so that various changes in tobacco leaves can develop in the direction that is most conducive to industrial usability, that is, to achieve ripening, yellowing, and aroma. The use of air powered tobacco leaf dryers has become the upgrading direction of traditional coal-fired tobacco stoves.

Compared with the conventional drying mode, the heat pump agricultural products drying has the following characteristics:

1.High energy utilization rate, low operating cost;

2.Low temperature drying can effectively reduce oxidation and chemical decomposition and other phenomena, especially adapt to thermal sensitive agricultural and sideline products drying, drying products of high quality;

3.Dry conditions can be adjustable, suitable for drying a variety of agricultural products;

4.The dehumidification efficiency of the evaporator in the heat pump system is high, compared with the traditional drying time can be shortened by 1 / 3;

5.When the closed-circuit heat pump drying system is adopted, the drying process is not affected by the external environment and climate, the drying process is stable, and there is no environmental pollution problem.

At present, heat pump drying technology has been widely used in wood, food, grain, seeds, fruits and vegetables, tobacco and other industries, in the process of agricultural products outstanding heat pump drying effect, with considerable economic and environmental benefits, has become the key field and development direction of agricultural modernization.

Tobacco leaf is an important cash crop in all countries, and it is also the basis for the survival and development of the tobacco industry.

The sustainability of tobacco leaf production is related to the overall development of the industry. Tobacco curing is an important link of tobacco production, which can determine the quality, availability and economy of tobacco leaves.

Traditional tobacco curing mostly takes loose coal as energy, the production technology is backward, the labor cost is high, the baking temperature is difficult to control, the baking quality is difficult to guarantee, the large amount of loose coal consumption and low altitude direct combustion directly, not only low economic benefit, but also has a serious impact on the environmental quality.

Heat pump flue-cured tobacco is completely controlled by the computer program, accurate control of temperature and humidity, automatic heating, fire reduction, humidity discharge, zero pollution in the baking process, baked tobacco leaves have good color, good quality, greatly improving the baking efficiency and tobacco quality, and achieve the effect of energy saving, emission reduction, green and environmental protection. According to the experimental results, the oil content and color of the heat pump drying chamber room are obviously better than that of the coal-fired oven.

In terms of energy saving benefit, the energy cost of the dry tobacco heat pump baking room is 0.15 yuan compared with the coal curing room, the heat pump drying room has realized real automatic control, and 2 roasters can watch 20 baking rooms.

Our company

JIMU is established since 2002 year, specializing in technology developing, manufacturing and marketing of heat pump dryers. With more than 20 years professional experience, our CEO and technical team provide excellent drying solution design and customized services. So far, we get CE, FDA and many other certifications. Compared with traditional drying equipment, JIMU heat pump dryer will dry the material gently to keep color, smell and shape perfect. Meanwhile saving around 75% energy consumption.


It’s JIMU’s target. Easy model selection, easy transportation, easy installation, easy operation, moreover, easy in the cost. Choose JIMU heat pump dryer, choose an easier drying way. JIMU’s unique negative pressure air distribution design to ensure the even drying effect for almost all drying materials. JIMU’s closed drying system will steady work in any ambient condition. One piece design drying room will be perfectly suitable for container loading, you don’t need installation, but just connect to power supply to start drying by JIMU machine. Compact structure reduces the cost of machine observably, let the whole drying solution economic.

Let us know information of the material, also your question or confusion of drying process, JIMU will provide a tailor made solution for you immediately. JIMU Dryera heat pump dryer, MAKE YOUR DRYING EASY.

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