Moisture regaining method and apparatus for tobacco, Chinese herbal medicine and its products

Abstract

The invention discloses a moisture-regaining method for tobacco, Chinese herbal medicines and products thereof and a moisture-regaining device thereof, and relates to a material moisture-regaining method and a moisture-regaining device thereof in tobacco industry. The moisture-regaining method comprises the following steps that: materials are delivered forward at a certain speed and blown by moist-hot wind coming from low part or side lower part to be in a suspended state in falling space to fully contact the moist-heat wind and absorb moist and heat to regain moisture. An entrance of a chamber of the device is provided with a conveyer, and the front lower part of the conveyer is at least provided with a common conveyer belt or a mesh belt; and a circular fan and a heat exchanger, or a circular hot-air pipeline which is arranged outside a moisture-regaining chamber are communicated with the moisture-regaining chamber through a moist-heat air pipe. The moisture-regaining method has the advantages that: 1. the method is suitable for high-grade materials; 2. the method is particularly suitable for small-batch single material; 3. the method produces less crumbs to the materials; and 4. the method can achieve balance in shorter time. The device has the advantages of special and reasonable design, simple structure, easy implementation and convenient operation.

Description

technical field [0001] The invention relates to a material rehydration method and device for the tobacco industry, in particular to a method and device for rehydrating herbal materials such as tobacco, Chinese herbal medicine, and their products. Background technique [0002] In the prior art, there are mainly three methods and equipment for moisture regaining in the tobacco industry. One is the vacuum moisture regain method and device, which can only be carried out offline and statically, and cannot be used for continuous production; due to the high temperature of the steam, it will The color of high-grade materials will be darkened, the aroma will be lost, the drug effect will be reduced, and the sensory quality will be reduced; moreover, the vacuum resurfacing equipment has complex structure, difficult maintenance, and high cost, which is not suitable for the treatment of small batches and single-variety materials. [0003] The second is the drum rehydration method and de...

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Problems solved by technology

[0002] In the prior art, there are three main methods and equipment for moisture regaining in the tobacco industry. One is the vacuum moisture regain method and device, which can only be carried out offline and statically, and cannot be used for continuous production; due to the high temperature of the steam, it will The color of high-grade materials will be darkened, the aroma will be lost, the drug effect will be reduced, and the sensory quality will be reduced; moreover, the vacuum resurfacing equipment has complex structure, difficult maintenance and high cost, and is not suitable for the treatment of small batches and single-variety materials.

[0003] The second is the drum rehydration method and device. The material moves violently in the drum and is prone to breakage; the device needs a certain adjustment time to achieve the required temperature and moisture when it is running. Therefore, small batches of materials cannot be achieved. Process requirements

Due to the high temperature of this device, it is easy to make the color of high-grade materials darken, which affects the internal quality of the materials. The materials will also adhere to the tank and the upper cover. When changing the variety, the cleaning work is heavy, which affects the production efficiency.

[0005] With the promotion of refined processing and classification processing technology, some small batches and single-variety materials need to be re-moisturized separately. The above-mentioned three re-moisture methods and equipment cannot solve the moisture resurgence of small-batch and single-species materials well.

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