Demonstraction Of Shanghai Tobacco (Group) Corp Expanded Tobacco Thread Project

This is a feasibility demonstration of scheduled "Expanded Tobacco Thread Project" of Shanghai Tobacco (Group) Corp.Importance of the project: The tar content is reduced and the safety ensurence is enhanced. Implementation of expanded tobacco technique is of vital importance for reduction of tar content in tobacco products; Filling extent should be enhanced and tobacco leaf consumption should be reduced to which the expanded tobacco technique helps a lot. By fully taking advantage of the tobacco resource and preparing a decent formula, we reduced the cost making no concession on quality requirements. The structure component of products is optimized and the quality standard of tobacco is improved while the impure aroma caused by unfully baked tobacco is restrained and the taste is also promoted. The technique brought us a market and makes the tobacco industry more competitive.Introduction of process techniques: After being immersed in liquidized CO₂, tobacco threads bringing certain amount of CO₂ are sent in expansion system, where CO₂ is evaporated that promotes the structural expansion of tobacco.Economical benefit: Economical analyze shows that single-box tobacco thread consumption is 32kg off, That is to say, 75 million yuan can be saved per year based on 1.5 million boxes annual production capability of Shanghai tobacco (group) Corp. while the investment can be returned in 1.84 year. So we can say that the project is of high beneficiary.Social benefit: Tar content is reduced which is good for smokers' health and the Freon-free technique is also environment friendly.Technological plan: Low price for original workshops' rebuilding and high success rate of mature processSelection of facilities: Link facilities with original parts and introduce vital major facilities which reduce the cost and ensure the quality and output.Consumption of the raw material: 12700 ton of CO₂ and 1.8 million m3 gas.Problems must be concerned in the project: Strengthen the CO₂ intensity inspection in workshops, ventilation and emergency ventilation measures so that safety production can be ensured. All above, plus energy consumption and workshop layout, are conducted under our investigation on certain companies and under relevant data.The conclusion we have drawn is: The project is of high economical benefit and social benefit. And it is very beneficial for the "Eleventh Five-Year" technology upgrade, reasonable layout modification, improvement of products' quality, energy consumption reduction, protection of the environment and the tar content reduction in tobacco.In all, this demonstration provides very beneficial proof for "Eleventh Five-Year" technology upgrade and is of operational importance.