Tunnel type drying device

Abstract

The invention discloses a tunnel type drying device, which comprises a furnace body, a hot air supply system, a hot air supply pipeline, a dehumidifying fan and a dehumidifying pipeline, wherein a first drying cavity and a second drying cavity are formed in the furnace body; the first drying cavity is positioned over the second drying cavity; a suspension interlayer is formed between a bottom plate of the first drying cavity and a top plate of the second drying cavity; a vertical hot air channel is formed between the side walls of the first drying cavity and the second drying cavity and the side wall of the furnace body; the vertical hot air channel is communicated with the suspension interlayer; horizontal hot air channels are formed between a top plate of the first drying cavity and a top plate of the furnace body as well as between a bottom plate of the second drying cavity and a bottom plate of the furnace body; the horizontal hot air channels are communicated with the vertical hot air channel; the hot air outlet of the hot air supply pipeline is formed in the suspension interlayer; and hot air is output from the hot air outlet. By adopting the drying device, hot air can flow better in the drying process, and the drying efficiency is increased on the premise of lowering the hot energy consumption.

Description

Technical field [0001] The invention relates to the technical field of glass fiber drying, more specifically to a tunnel drying device. Background technique [0002] Glass fiber is an inorganic non-metallic material with excellent performance. It is made from glass balls or waste glass through processes such as high temperature melting and wire drawing. Glass fiber has the advantages of good insulation, high heat resistance and corrosion resistance, and is widely used in various fields. [0003] In the process of making glass fibers, some sizing agent emulsions are used. In order to make the sizing agent solidify into a film and to remove excessive moisture in the drawn glass fiber, the drawn glass fiber needs to be dried. In the existing single-layer tunnel drying furnace for drying glass fibers, a drying chamber is built in the furnace body of the drying furnace, and the bottom of the drying chamber is provided with a yarn cart track, which carries glass fiber yarn The car ente...

AI Technical Summary

Problems solved by technology

Because the hot air mixes with the cold air in the hot air channel at the top of the drying chamber before entering the drying chamber, a large amount of heat will be dissipated to the outside air through the top plate of the furnace body, which will affect the heat utilization rate of the drying furnace. , the drying effect is poor

At the same time, due to the narrow space of the cavity of the existing tunnel-type drying furnace, the hot air cannot flow well in the cavity of the drying furnace after the hot air is introduced, and it needs to consume more heat and time to complete the glass drying process. The drying of fibers further affects the heat utilization rate and drying efficiency

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