Incremental hot air countercurrent drying device and method

A drying device and drying method technology, applied in the direction of progressive dryer, drying gas arrangement, tobacco drying, etc., can solve the problems of poor dehydration ability of the device, affect the processing quality of tobacco sheets, and poor drying efficiency, and shorten the drying time , Improve the moisture absorption capacity and improve the processing quality

Pending Publication Date: 2019-03-01
昆明烟机集团三机有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The drying efficiency is poor, and the dehydration ability of the device is not good, which affects the processing quality of tobacco sheets

Method used

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  • Incremental hot air countercurrent drying device and method
  • Incremental hot air countercurrent drying device and method
  • Incremental hot air countercurrent drying device and method

Examples

Experimental program
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Effect test

Embodiment 1

[0024] Such as image 3 As shown, the incremental hot air countercurrent drying device for drying tobacco flakes in this embodiment includes a conveyor belt 1, an existing heating device is evenly arranged below the conveyor belt 1, and a ventilation tunnel 4 is arranged above the conveyor belt 1, and the ventilation tunnel 4 is provided with 4 vents, and the air supply duct 5 communicates with the 4 vents, and hot air enters the ventilation tunnel 4 from each vent. The four ventilation openings are arranged in steps, the first ventilation opening 8 is arranged close to the air supply duct 5, and is closest to the conveyor belt 1, the second ventilation opening 9, the third ventilation opening 10 and the fourth ventilation opening 11 are connected to the conveyor belt 1. As the distance increases gradually, the cross-sectional area of ​​the ventilation tunnel increases gradually along the wind direction.

[0025] The other end of the ventilation tunnel 4 is provided with an a...

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PUM

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Abstract

The invention relates to an incremental hot air countercurrent drying device and method. The incremental hot air countercurrent drying device comprises a conveying belt, a ventilation tunnel is arranged above the conveying belt, the air direction of the ventilation tunnel is opposite to the direction of the conveying belt, a plurality of ventilation holes are formed in the ventilation tunnel, eachventilation opening is not located on the same horizontal plane, so that the sectional area of the ventilation tunnel is different or changes along the wind direction in a certain rule, the hot air enters the ventilation tunnel from each ventilation opening at the same time, and the air volume in the ventilation tunnel is gradually increased relative to the material countercurrent direction. According to the incremental hot air countercurrent drying device, the surface moisture of the material can be accelerated to diffuse into hot air, so that the drying and dewatering energy efficiency of the device is improved.

Description

technical field [0001] The invention relates to a drying device, especially an incremental hot air countercurrent drying device, and also relates to a drying method thereof. Background technique [0002] The traditional tunnel-type new tobacco material drying and processing equipment uses the heating method of the lower part of the conveyor belt to make the water in the size film spread on the conveyor belt evaporate and overflow into the upper ventilation tunnel due to heating, and then reuse and transport the size film. The hot air in the opposite direction (countercurrent) takes the evaporated water out of the equipment to achieve the purpose of the dehydration process, such as figure 1 As shown, the hot air 3 enters the ventilation tunnel 4 from the air supply duct 5, and then is discharged from the air outlet 6, and the serous film 2 on the conveyor belt 1 is reversely dried by the hot air 3 in the ventilation tunnel 4. [0003] When using the traditional hot air count...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F26B15/18F26B21/12F26B21/10F26B21/08
CPCF26B15/18F26B21/08F26B21/10F26B21/12F26B2200/22
Inventor 马金技张春富蒋更普方星龙张庭荣
Owner 昆明烟机集团三机有限公司
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