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Device and method for microwave heating and concentratimg of tobacco extract

A technology of tobacco extract and microwave heating, applied in separation methods, chemical instruments and methods, evaporators heated by serpentine tubes, etc., can solve the problems of low concentration efficiency, high membrane price and maintenance cost, and improve heating efficiency. , The effect of inhibiting the growth of bacteria and avoiding scaling

Inactive Publication Date: 2019-11-26
CHINA HAISUM ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Patent CN102823935 B discloses a method for concentrating tobacco extract, which has problems such as high membrane price and maintenance cost, and low concentration efficiency

Method used

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  • Device and method for microwave heating and concentratimg of tobacco extract
  • Device and method for microwave heating and concentratimg of tobacco extract

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A method for concentrating tobacco extract by microwave heating:

[0029] First start forced circulation pump 3, microwave heater 1, vacuum pump 6, tobacco extract (solid content is 8%, temperature is 45 ℃, flow is 500kg / h) enters the serpentine shape of microwave heater 1 by forced circulation pump 3 In the pipeline 11, after being heated to the set temperature of 58°C, it is sprayed into the evaporation tank 2 at a speed of 1.5m / s, falls on the upper baffle 25, and then continues to flow to the lower baffle 25 and then flows Extending to the evaporation chamber below it, the set negative pressure of the tobacco extract in the evaporation tank due to the control of the suction of the vacuum pump 6 is 0.185kgf / cm 2 Boiling at low temperature, the steam generated by boiling enters the gas-liquid separator 4 through the steam outlet 22, and the water droplets in the steam meet the water baffle 43 and flow to the bottom drain port 42 to return to the evaporation tank 2; th...

Embodiment 2

[0034] A method for concentrating tobacco extract by microwave heating:

[0035]First start forced circulation pump 3, microwave heater 1, vacuum pump 6, tobacco extract (solid content is 7.5%, temperature is 47 ℃, flow is 500kg / h) enters the serpentine shape of microwave heater 1 by forced circulation pump 3 In the pipeline 11, after being heated to a set temperature of 60°C, it sprays into the evaporation tank 2 at a speed of 1.3m / s, falls on the upper baffle 25, and then continues to flow to the lower baffle 25 and then flows Extending to the evaporation chamber below it, the set negative pressure generated by controlling the suction of the vacuum pump 6 in the evaporation tank of the tobacco extract is 0.203kgf / cm 2 Boiling at low temperature, the steam generated by boiling enters the gas-liquid separator 4 through the steam outlet 22, and the water droplets in the steam meet the water baffle 43 and flow to the bottom drain port 42 to return to the evaporation tank 2; the ...

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Abstract

The invention discloses a device and a method for a microwave heating and concentrating of a tobacco extract. The device comprises a microwave heater used for heating the tobacco extract, an evaporating tank used for collecting the heated tobacco extract, a vapor-liquid separator used for collecting vapor generated in the evaporating tank and carrying out vapor-liquid separation on the vapor, a condenser used for condensing the vapor generated at the vapor outlet of the vapor-liquid separator, and the like. The concentrating method comprises the following steps: a forced circulation pump, themicrowave heater and the vacuum pump are turned on, the tobacco extract enters the microwave heater through the forced circulation pump, and is heated to a preset temperature, the heated tobacco extract enters the evaporating tank, the vapor generated in the evaporating tank enters the vapor-liquid separator, and vapor free from water drops enters the condenser. The tobacco extract is heated and then evaporated in the evaporating tank under a vacuum condition at a low temperature through microwave energy, the structure is simple, and the concentrating temperature is low, so scaling of the tobacco extract is greatly reduced, growth of bacteria is inhibited through microwaves, and the product quality is improved.

Description

technical field [0001] The invention relates to the field of tobacco production, in particular to a microwave heating evaporation concentration device for tobacco extract and a concentration method thereof. Background technique [0002] In the process of preparing cigarettes, tobacco sheets are usually added to improve the utilization rate of tobacco leaf raw materials, reduce production costs and increase output. Domestic tobacco flakes are usually prepared by papermaking. The process is to soak and extract tobacco raw materials (tobacco stems, tobacco powder, etc.) to obtain extracts and solids, beat the solids, make paper into a sheet base, concentrate the extracts, Spray it on the film base after adding spices and other treatments, and finally dry and shape it to make tobacco sheets. Among them, the concentration of the extract is a key process that affects the quality of the tobacco sheet. [0003] At present, in the paper-making reconstituted tobacco industry, the co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D1/00B01D1/02B01D1/16B01D1/30
CPCB01D1/0017B01D1/0082B01D1/0094B01D1/02B01D1/16B01D1/30
Inventor 张园园唐婷婷张佳琳黄德飞吴立群
Owner CHINA HAISUM ENG
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