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A hot air circulation drying oven with uniform flow field and its method for uniformity

A technology of hot air circulation drying and drying oven, which is applied in the direction of static material dryers, drying gas arrangement, local agitation dryers, etc., which can solve problems such as uneven drying, reduce drying costs, facilitate operation, and improve high energy consumption Effect

Active Publication Date: 2017-12-22
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the phenomenon of uneven drying in the drying process of agricultural and sideline products in the existing drying equipment, the invention provides a hot air circulation drying box with a new type of air distribution device and a uniform flow field

Method used

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  • A hot air circulation drying oven with uniform flow field and its method for uniformity
  • A hot air circulation drying oven with uniform flow field and its method for uniformity
  • A hot air circulation drying oven with uniform flow field and its method for uniformity

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment 1: as figure 1 , 2As shown, the hot air circulation drying box with a uniform flow field includes a drying box 1, an air inlet channel 7, an air outlet channel 9, an upper main air channel 12, an upper distribution air channel 3, a lower general air channel 6, and a lower distribution air channel 5 , the upper air distribution device 2, the lower air distribution device 4, the lower air distribution device 4 is arranged on the lower part of the drying box 1, the upper air distribution device 2 is arranged on the upper part of the drying box 1, and the air inlet channel 7 passes through the lower total air channel 6 and is arranged on the lower part of the drying box. The downwind duct 5 below the air distribution device 4 is connected, and the upper air distribution channel 3 arranged above the upper air distribution device 2 is connected to the air outlet channel 9 through the upper main air channel 12, and the air outlet channel 9 is connected to the air in...

Embodiment 2

[0026] Embodiment 2: as figure 1 , 3 As shown, the structure of the hot air circulation drying box with a uniform flow field is the same as in Embodiment 1, except that the structure of the upper air distribution device 2 and the lower air distribution device 4 is the same, and the structure includes 6 blades 19, a transmission mechanism, an adjustment button 13, 6 rotating shafts 20, the two ends of the rotating shaft 20 are installed on the front and rear inner walls of the drying box through bearings, and the blades 19 are fixed on the rotating shaft 20; 16. The driving gear 16 is arranged on one end of the transmission rack 15 and meshes with it. The transmission rack 15 is arranged in the drying box and meshes with a terminal transmission member formed by a transmission gear 17 located in the middle of the transmission rack 15. The transmission gear 17 is connected to the One end of one rotating shaft 20 is coaxially connected, and the blade 19 arranged on the rotating s...

Embodiment 3

[0029] Embodiment 3: as figure 1 , 4 As shown, the structure of the hot air circulation drying box with a uniform flow field is the same as in Embodiment 1, except that the structure of the upper air distribution device 2 and the lower air distribution device 4 is the same, and the structure includes 10 blades 19, a transmission mechanism, an adjustment button 13, 10 rotating shafts 20, the two ends of the rotating shaft 20 are installed on the front and rear inner walls of the drying box through bearings, and the blades 19 are fixed on the rotating shaft 20; The terminal transmission part is two transmission pulleys 22, and the belt pulley 23 is connected with the transmission pulley 22 through the transmission belt 21, and the transmission pulley 22 is coaxially connected with one end of the rotating shaft 20, and the blade 19 arranged on the rotating shaft 20 is connected to the The other blades are connected as a whole; the connecting rod 18 is a high-strength angle steel...

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Abstract

The invention discloses a hot air circulation drying box with an even flow field and a homogenizing method for the hot air circulation drying box. The device comprises a drying box body, an air inlet flue, an air outlet flue, an upper total air flue, an upper air distribution flue, a lower total air flue, a lower air distribution flue, an upper air distribution device and a lower air distribution device; and the upper air distribution device and the lower air distribution device are the same in structure, and the structure comprises more than three blades, a transmission mechanism, an adjusting button and more than one rotating shaft. According to the device, the rotating directions of the blades are controlled in a staged manner by rotating the blades, so that the air speeds and the air directions at the air inlet position and the air outlet position are changed, and the problems that the energy consumption is high due to the fact that drying of agricultural and sideline products is uneven, and products at the high-humidity positions for a long time are low in quality can be effectively solved.

Description

technical field [0001] The invention relates to a drying device, in particular to a hot air circulation drying device and a drying homogenization method thereof. Background technique [0002] Drying equipment is one of the important equipment in the drying process of crops. Different drying objects have different drying methods, among which hot air drying is the most common drying method in current practical applications. However, there will be many problems such as low drying efficiency, reduced quality of dried products, and increased drying energy consumption due to uneven air distribution in the drying room where hot air flows through. A series of experimental studies have been carried out on household common hot air through-flow drying equipment consisting of hot blast stove, exhaust fan, reversing mechanism, air duct and drying box. The mechanism allows the hot air to enter the drying box alternately up and down. The drying oven is a cube, with 14 layers of drying tr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F26B9/06F26B21/00
CPCF26B9/06F26B21/004
Inventor 别玉郑思铭陈飞孙俊刚毛文元朱孝钦
Owner KUNMING UNIV OF SCI & TECH