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Filament microwave heating device

A microwave heating device and filament technology, which is applied in microwave heating, electric heating devices, connecting devices, etc., can solve the problems of unable to achieve rapid production, unable to heat wet filaments, and unable to heat filaments

Active Publication Date: 2021-07-06
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, in the heating of filaments, especially for the heating of filaments with extremely thin diameters, the energy of microwaves cannot be concentrated on the filaments due to the diameter of the filaments is too small. When using ordinary microwave heating methods, it cannot be effectively Even if the filament is heated for a long time, the wet filament cannot be heated evenly, and the purpose of rapid production cannot be achieved

Method used

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  • Filament microwave heating device
  • Filament microwave heating device
  • Filament microwave heating device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] In this embodiment, the spandex filament is heated as an example. The diameter of the spandex filament is 1 mm, and the spandex filament enters the filament microwave heating device at a speed of 0.1 m / s from the filament inlet 10 .

[0037] A filament microwave heating device, which includes a waveguide compression converter, a waveguide turning joint and a filament heating section 11. Such as figure 1 Shown is a schematic diagram of the structure of the waveguide compression converter, including a standard waveguide inlet 1 and a ridge waveguide inlet 2. The standard waveguide inlet 1 is square, and the standard waveguide inlet 1 is connected to the emission source, and microwaves are emitted from the emission source ; From the standard waveguide inlet 1 to the ridge waveguide outlet 2, several step surfaces are arranged, and the area surrounded by several of the step surfaces becomes smaller gradually, that is, the inner diameter of the waveguide compression converte...

Embodiment 2

[0042] The difference from the above embodiment is that the waveguide compression converter, the vertical ridge waveguide 7 and the horizontal ridge waveguide 8 in this embodiment, and the filament heating section 11 are all single-ridge waveguides, and the power of the microwave source is adjusted to 300W , can make the heating temperature of the ridge waveguide in the filament heating section 11 reach 140°C. After the filaments are heated by the filament heating section 11, the effect of rapid and uniform drying can be completely achieved, which meets the requirements of production and processing.

Embodiment 3

[0044] The difference with the above-described embodiment is that in the present embodiment, a hot-blast inlet 12 is also provided beside the filament inlet 10, and the hot-blast inlet 12 is connected with the hot-blast device, and the hot-blast device can adopt an existing hot-blast device to blow out hot blast, This is the prior art and will not be repeated. The hot air can be directly blown into the filament heating section 11 from the hot air inlet 12 by the hot air device. By continuously blowing in the hot air, on the one hand, the microwave can be used to heat the filament. On the one hand, the moisture generated after heating can be taken out of the filament heating section 11 along with the hot air, so that the filament heating section 11 remains dry, and the heating capacity of the filament in the filament heating section 11 is further improved.

[0045] More preferably, described hot-blast blowing port 12 can be set to two, and two hot-blast blowing ports 12 are symm...

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Abstract

The invention discloses a filament microwave heating device which comprises a waveguide compression converter and a waveguide turning joint, the waveguide compression converter is arranged in the upper side of the waveguide turning joint, the size of a ridge waveguide exit port is equivalent to that of a vertical ridge waveguide entrance port, a filament inlet is formed in the waveguide turning joint, the filament inlet and the horizontal ridge waveguide are communicated and are located on the same straight line; an exit port of the horizontal ridge waveguide is communicated with the filament heating section, and a ridge waveguide with the same size as the horizontal ridge waveguide is arranged in the filament heating section. By compressing and converting a standard waveguide into a double-ridge waveguide, the energy density can be increased to more than 80 times, and filaments with extremely small diameters can be heated.

Description

technical field [0001] The invention relates to the field of microwave heating, in particular to a filament microwave heating device. Background technique [0002] Microwave heating is the process of heating objects by using the energy characteristics of microwaves. It has the characteristics of fast heating speed, small heat loss, and convenient operation. It can not only shorten the process time, increase productivity, reduce costs, but also improve product quality; and Compared with traditional heating methods, microwave heating can make heating more uniform and faster. [0003] However, in the heating of filaments, especially for the heating of filaments with extremely thin diameters, the energy of microwaves cannot be concentrated on the filaments due to the diameter of the filaments is too small. When using ordinary microwave heating methods, it cannot be effectively Even if the filaments are heated for a long heating time, the wet filaments cannot be heated evenly, a...

Claims

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Application Information

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IPC IPC(8): H01P5/08H01P1/02H05B6/70
CPCH01P1/02H01P5/08H05B6/704
Inventor 朱铧丞杨阳
Owner SICHUAN UNIV