Expansion equipment of tobacco raw materials

Abstract

The invention provides expansion equipment of tobacco raw materials, which consists of a soaking expansion system, a solvent purification and recovery system, a vacuum system (3), a heat exchange system and a compressor (7), wherein the soaking expansion system comprises a communicated storage tank (1) and a processing tank (2), a heat exchange clamping sleeve is arranged outside the processing tank (2), the solvent purification and recovery system comprises a condenser (4), an absorption purification device (6), a washing device (8) and a vaporization tank (9) which are communicated, a heat exchange jacket is arranged outside the condenser (4), the condenser is respectively communicated with the processing tank and the absorption purification device, the washing device is respectively communicated with the absorption purification device and the vaporization tank, the absorption purification device is communicated with the vaporization tank, the processing tank, the condenser, the absorption purification device and the washing device are communicated with the vacuum system, the heat exchange system comprises a circulation water tank and a circulation water pump (12), the circulation water pump is respectively communicated with the processing tank, the condenser, the absorption purification device, the washing device and the heat exchange clamping sleeve of the vaporization tank, and the compressor is respectively communicated with the processing tank, the absorption purification device, the washing device and the vaporization tank. The invention has the advantages of high production safety and good tobacco expansion effect, can reduce the loss of scorched and burned flavor and the fragrance of the tobacco, and can reduce the pulverization.

Description

technical field [0001] The invention belongs to a device for processing tobacco raw materials, in particular to a device for expanding tobacco raw materials. Background technique [0002] Expanded shredded tobacco, expanded stems, and expanded stem particles are used as one of the raw materials of cigarette formulations, which not only save raw materials, but also improve the combustion status of cigarettes. The most important thing is that they can reduce the tar and carbon monoxide of cigarettes without reducing the aroma. There are many methods for expanding tobacco raw materials, and Freon expansion has not been well resolved due to its solvent residue and ozone layer destruction, and this method has been eliminated. At present, processes such as carbon dioxide and nitrogen expansion are commonly used in the world. The liquefaction pressure of the carbon dioxide expansion process is high, and the tobacco raw material freezes into blocks after impregnation and decompres...

AI Technical Summary

Problems solved by technology

The liquefaction pressure of the carbon dioxide expansion process is high, and the tobacco raw material freezes into blocks after impregnation and decompression, which determines the complexity and high cost of the process, and the carbon dioxide expansion technology has a large loss, high equipment repair and maintenance costs, and the tobacco raw material Large loss of aroma, heavy coke gas, dry smoke, high crushing rate

Although the expansion temperature of nitrogen expansion is low, no pollution, no residue, but the expansion rate is not high, because the pressure is too high, the requirements for the pressure resistance and safety of the equipment are also high

In addition, U.S. Patent US5669397 and Chinese Patent CN1099587A use propane as an expansion agent, but its smell will affect the taste of cigarettes

Chinese patents CN1210449A and CN1099587A provide a method for expanding tobacco under high-pressure impregnation conditions, and the expansion agent used isopentane has low toxicity and low safety

However, there has been a lack of equipment systems that can better implement these methods

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