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Drying device

A drying device and drying technology, applied in the direction of heating devices, progressive dryers, drying solid materials, etc., can solve the problems of time increase and drying treatment efficiency reduction, and achieve the effects of reducing floor area, simple structure, and suppressing deviation

Inactive Publication Date: 2010-03-03
DAIKIN IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the problem is solved by prolonging the irradiation time of microwaves, the time required for drying the object will increase and the efficiency of the drying process will decrease.

Method used

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Experimental program
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Effect test

no. 1 approach

[0052] The first embodiment of the present invention will be described. The manufacturing apparatus 1 in the present embodiment is an apparatus for drying wet PTFE powder in order to manufacture dry PTFE powder as a final product in the manufacturing process of PTFE powder. In addition, "right", "left", "front", "rear", "near", and "inside" used in the following description are all directions defined when the manufacturing apparatus 1 is viewed from the front side.

[0053] Here, PTFE powder is produced by means of polymerization in water. Therefore, in order to obtain a dry PTFE powder, it is necessary to dry the wet PTFE powder produced by the polymerization reaction. In addition, PTFE powder is sometimes used as a raw material for extruding PTFE products. It is required that the extrusion pressure of the PTFE powder used in this application is almost constant during extrusion molding. In order to meet this requirement, heat treatment of PTFE powder is required. Therefor...

no. 2 approach

[0130] A second embodiment of the present invention will be described. This embodiment is obtained by modifying the structure of the manufacturing apparatus 1 of the above-mentioned first embodiment. Here, differences between the manufacturing apparatus 1 of the present embodiment and the manufacturing apparatus 1 of the first embodiment described above will be described. In addition, "right", "left", "front", "rear", "near", and "inside" used in the following description are all directions defined when the manufacturing apparatus 1 is viewed from the front side.

[0131] As shown in FIG. 8 , in this embodiment, eight conveyance trays 14 are provided in one tray unit 10 . The tray rack 11 of the tray unit 10 includes eight frame members 12 arranged at predetermined intervals in the vertical direction.

[0132] In the front-stage unit 20 of this embodiment, the length in the left-right direction of the housing 21 is about half that of the first embodiment. On the other hand,...

no. 3 approach

[0165] A third embodiment of the present invention will be described. Here, differences between the manufacturing apparatus 1 of the present embodiment and the manufacturing apparatus 1 of the first embodiment described above will be described. In addition, "right", "left", "front", "rear", "near", and "inside" used in the following description are all directions defined when the manufacturing apparatus 1 is viewed from the front side.

[0166] Such as Figure 9 As shown, the manufacturing device 1 of this embodiment includes four front-stage units 20 and one rear-stage unit 60 . Four pre-stage units 20 are stacked up and down.

[0167]As shown in FIG. 10 , the casing 21 of each front-stage unit 20 is formed in a hollow rectangular parallelepiped shape. The inner space of the casing 21 constitutes an irradiation area 30 .

[0168] The housing 21 is large enough to accommodate four transport trays 14 in a state where the four transport trays 14 are vertically arranged at a ...

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Abstract

The present invention discloses a drying device. In a pre-stage unit (20) as a drying device, a large-size body casing (21) is poditioned, and four irradiation zones (31-34) are formed in the body casing (21). One tray unit (10) is received in each irradiation zone (31-34). Four conveyance metal trays (14) are vertically arranged in each tray unit (10), spacing between the conveyance metal trays (14) is set bigger than half of the wavelengh of microwave (lambada / 2). Wet PTFE powder is placed on each conveyance tray (14). In the irradiation zones (31-34), each conveyance tray (14) of the trayunit (10) is irradiated with microwaves from the lateral from the first irradiation zone (31) to the fourth irradiation zone (34) in sequence along with the tray unit (10).

Description

technical field [0001] The present invention relates to a drying device for drying an object by irradiating microwaves. Background technique [0002] Conventionally, drying apparatuses are known that irradiate microwaves to an object containing water to evaporate the water contained in the object. For example, Patent Document 1 discloses a drying device. In this drying device, powdered PTFE (polytetrafluoroethylene) is used as an object, and the wet PTFE powder is irradiated with microwaves to dry the PTFE powder. In this drying device, the wet PTFE powder is placed on a tray, and the PTFE powder in the tray is irradiated with microwaves from above. Patent Document 2 also discloses a drying device. In this drying device, fried food is used as an object, and the food is irradiated with microwaves to dry the food. In this drying device, the target food is conveyed on a belt conveyor, and microwaves are irradiated to the food moving horizontally from above. [0003] Patent...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F26B3/347B29B13/06F26B23/08B29K27/12
CPCF26B25/001F26B15/10B29B13/08B29B13/065B29C35/08B29K2027/18F26B15/143F26B3/347
Inventor 小林真一郎菊野智教木户照雄内海靖浩田中孝之德野敏
Owner DAIKIN IND LTD