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Air distribution structure of low-temperature rotational-flow rotary-disc material drying machine

A drying machine and air distribution technology, which is applied in the direction of drying machines, drying solid materials, and drying gas layout, etc., can solve the problems of single hot air direction, increase hot air volume, and reduce production efficiency, so as to increase the contact area and strengthen Effect of heat transfer and reduction of hot air volume

Pending Publication Date: 2019-02-01
北京水木益华环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. Low production efficiency: Since the materials in the drying room are laid flat on the mesh belt, the hot air can only dry the surface of the materials. In order to ensure the drying effect, it is necessary to wait for the moisture inside the materials to migrate to the surface. The process is slow, which leads to the production of the drying process. Extended cycle times reduce productivity and negatively impact drying quality and cost
[0005] 2. Large energy consumption: the direction of the hot air in the drying chamber is single and fixed, which is not conducive to the full contact with the hot air on the surface of the material to distribute moisture, the drying effect is poor, and the heat utilization rate is low. In order to ensure the drying effect, the hot air volume needs to be increased, resulting in high energy consumption

Method used

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  • Air distribution structure of low-temperature rotational-flow rotary-disc material drying machine
  • Air distribution structure of low-temperature rotational-flow rotary-disc material drying machine
  • Air distribution structure of low-temperature rotational-flow rotary-disc material drying machine

Examples

Experimental program
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Effect test

Embodiment 1

[0031] like Figure 1a As shown, the material drying machine of the present invention includes a drying chamber 1, a heat pump 2, a blower 3, an air supply duct 4, an air distribution duct 5 and a return air duct 6, wherein the drying chamber 1 is surrounded by a large material tray 7 and a small material The tray 9 is divided into a multi-layer structure. The large tray 7 is provided with a large tray air ring 10 along the inner wall of the drying chamber 1 above the large tray 7. The small tray 9 is provided along the inner wall of the drying chamber 1. A small tray air ring 15 , the air distribution ring 10 of the large material plate and the air distribution ring 15 of the small material plate are respectively communicated with the air outlet of the heat pump 2 through the air supply pipe 4 and the air distribution pipe 5 . The large pan air ducts 11 extending into the drying chamber 1 are evenly distributed on the large pan air distribution ring 10 . The air distribution ...

Embodiment 2

[0044] like Figure 1b As shown in the figure, the difference between this embodiment and Embodiment 1 is that the feeding trays arranged step by step in the drying chamber 1 are divided into an upper feeding tray and a lower feeding tray, and the upper feeding tray is connected to the reheating work heated by the reheating circuit. The gas purges the upper wet material to compensate for the problem that the gas temperature in the upper tray is too low. Specifically, it includes a heat pump reheater 32 , a reheat return air pipe 19 , a reheat air supply pipe 22 , a reheat air distribution ring 33 , a reheat air distribution pipe 34 , and a reheat air distribution port 35 . The heat pump reheater 32 can be integrated in the heat pump 2 or independent of the heat pump 2. The air inlet of the reheat return air pipe 19 is arranged between the upper and lower material pans, and the air outlet is connected to the heat pump reheater. 32 air inlets.

[0045] One end of the reheat ai...

Embodiment 3

[0048] The difference between this embodiment and Embodiments 1 and 2 is that the first rake arm 23 and the inner push rake teeth 24 and between the second rake arm 25 and the outer expansion rake teeth 26 can be relatively movable, that is, the rake teeth are sleeved on the On the rake arm, it is not stuck and can swing freely along the rake arm, and the angles of the rake teeth on the two adjacent layers of material trays are opposite.

[0049] At the same time, the first rake arm 23 and the second rake arm 25 are hollow structures, and the first rake arm 23 and the second rake arm 25 are respectively connected with the air distribution ring 10 of the large material tray and the air distribution ring 15 of the small material tray. Where the arm 23 faces the large feeding tray 7 is provided with the large feeding tray tuyere 12 , and the second rake arm 25 faces the small feeding tray 9 is provided with the small feeding tray tuyere 17 .

[0050] In this embodiment, preferabl...

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Abstract

The invention discloses an air distribution structure of a low-temperature rotational-flow rotary-disc material drying machine. The air distribution structure of the low-temperature rotational-flow rotary-disc material drying machine comprises a drying chamber and a heat pump; large material discs and small material discs are disposed in a staggered mode along a center shaft in the drying chamber;and the large material discs and the small material discs rotate synchronously with the center shaft. The air distribution structure of the low-temperature rotational-flow rotary-disc material dryingmachine is characterized in that air distribution rings are disposed in the positions, corresponding to the upper portions of the large material discs and the small material discs, on the inner wallof the drying chamber correspondingly; the air distribution rings communicate with an air outlet of the heat pump; air distribution mechanisms are disposed on the air distribution rings; and downwardair distribution openings are formed in the air distribution mechanisms. Hot air directly blows wet materials through air distribution pipes by means of the air distribution rings in the drying chamber, and accurate demand control over the hot air quantity and hot air speed can be performed according to the humidity; and the hot air and the wet materials of the certain layers are subjected to heatexchange, and then the hot air enters the positions between the large material discs and the small material discs of the next groups from through holes of the large material discs or gaps between thesmall material discs and the side wall of the drying chamber.

Description

technical field [0001] The invention relates to the field of low-temperature drying of materials, in particular to an air distribution structure of a low-temperature swirling turntable material drying machine. Background technique [0002] At present, there are more and more scenarios that require hot air drying in the market, such as tobacco drying, grain drying, medicinal material drying, fruit and vegetable drying and other processing processes, and the reduction and harmless treatment of sludge and other wastes. . The material dryer is the main equipment for drying operations, and the hot air circulation system in the dryer is the key to improving drying efficiency, saving energy and ensuring product quality. [0003] Among the existing drying technologies, the low-temperature drying method is often used at this stage. The "box-type mesh belt machine" is generally used for low-temperature drying, which mainly adopts the method of overall air distribution or uniform air ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F26B11/18F26B21/04F26B25/04F26B25/18
CPCF26B11/18F26B21/04F26B25/04F26B25/18
Inventor 袁方丁红玉麻宝刚
Owner 北京水木益华环保科技有限公司
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