Steam puffing treatment method of tobacco material

Abstract

The steam puffing treatment process of tobacco material includes the steps of: steaming inside saturated steam at 60-100 deg.c in a steam puffing tank for 1-5 min; introducing high pressure air of 1.0-1.5 MPa into the tank and maintaining the pressure for 2-3 min; fast relieving the pressure of the tank while spraying the tobacco material into one normal pressure container and drying to obtain steam puffing treated tobacco material. The treated tobacco material can be shredded tobacco, tobacco stem, shredded tobacco stem or their mixture. The medium of the present invention is air or steam, so it can degrade the harmful components in tobacco, prevent the loss of fragrant matter.

Description

technical field [0001] The invention belongs to the field of tobacco processing, and in particular relates to a steam explosion puffing treatment method for tobacco raw materials. Background technique [0002] The research on tobacco puffing technology began in the late 1960s, and developed countries began to apply it to production in the 1970s. Since tobacco puffing can reduce the amount of tobacco raw materials and reduce the tar content of cigarettes, it is of great significance for improving the safety of cigarettes. In recent years, my country is vigorously developing, introducing and promoting tobacco raw material puffing technology. [0003] Tobacco puffing technology is divided into online puffing technology and off-line puffing technology. The off-line puffing technology mainly uses a special medium as an puffing agent to impregnate the tobacco, and then heats it to volatilize the medium to drive the moisture inside the tobacco to achieve the purpose of puffing. ...

AI Technical Summary

Problems solved by technology

(1) The cost of medium raw materials is high and it is difficult to recycle; (2) The treatment temperature is low, it is not easy to control, and the harmful components cannot be effectively degraded; (3) The treatment intensity is low, and it has little impact on lignin and hemicellulose in tobacco raw materials. It can only process high-grade shredded tobacco, and is not suitable for puffing of low-grade tobacco raw materials, such as tobacco stems, etc.; (4) The required equipment is expensive and the investment is high

The on-line puffing technology is mainly developed by the British LEGG company, the German HAUNI company and the Italian COMAS company; they use high-temperature water as the medium for high-temperature cooking, and then quickly dry and puff the cooked tobacco, and there is also a complete set of equipment investment. Large size, complex process, high energy consumption, high operating cost, etc.

[0004] Although the technology of expanding tobacco with double sets of pressure vessels has also appeared at present, there are also large investment (decompression tanks not only need to be pressure-resistant equipment, but also several times or even ten times that of pressure tanks), high costs (need vacuum equipment), unsafe operation (decompression tank is not normal pressure) and complicated operation (only 20 kg for one charge)

In short, due to the problems existing in the current tobacco puffing technology, the improvement of the economic benefits of the tobacco industry and the wide application of puffing technology are greatly limited.