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Drying device of coating complex machine

A technology of drying device and compound machine, which is applied to devices for coating liquid on surfaces, coatings, pretreatment surfaces, etc., can solve the problems of easy explosion, waste heat, cause danger, etc., and achieve the effect of ensuring production safety.

Active Publication Date: 2012-09-19
GUANGDONG JINMING MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] When the drying device heats and dries various substrates such as cardboard and film coated with coating materials, the temperature of the exhaust gas discharged from the air outlet of the oven is very high. If the high-temperature exhaust gas is directly discharged from the oven without adding Recycling will waste a lot of waste heat; if the internal circulation is used to directly input the high-temperature waste gas into the oven, although the waste heat of the high-temperature waste gas can be fully utilized, when the drying device is used for those coating materials containing organic solvents When heating and drying, the exhaust gas discharged from the oven contains a certain amount of volatile solvent, which will increase the concentration of volatile solvent in the gas in the oven. When the concentration of volatile solvent in the gas in the oven exceeds the minimum of volatile solvent gas When the concentration of the lower explosion limit is LEL, it is easy to explode and cause danger.

Method used

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  • Drying device of coating complex machine
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  • Drying device of coating complex machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Such as Figure 1 to Figure 4 As shown, the drying device of the coating compound machine in this preferred embodiment includes an oven 1, a hot air generating device 2 and an exhaust gas waste heat recovery device 3;

[0042] The above-mentioned oven 1 includes drying areas A, B, C, D, and E. The above-mentioned drying areas A and B are drying areas with high concentrations of volatile solvent gases, and the above-mentioned drying areas C, D, and E are drying areas containing volatile solvents. In the drying area with low concentration of solvent gas, the concentration of volatile solvent in the above-mentioned drying areas A, B, C, D, and E gradually decreases in turn, and the above-mentioned drying areas A, B, C, D, and E are all An air inlet 11 and an air outlet 12 are provided, and a hot air generating device 2 is provided on the air inlet 11 of each drying zone A, B, C, D, E, and the air outlets of the above-mentioned drying zone A and drying zone B 12 is respect...

Embodiment 2

[0053] Embodiment 2 is basically the same as Embodiment 1, the difference between the two is:

[0054] Such as Figure 5 As shown, each of the air outlets 12 of drying zone C, drying zone D, and drying zone E in Example 2 is connected with an exhaust gas waste heat recovery device 3;

[0055] The exhaust gas waste heat recovery device 3 on the air outlet 12 of the drying area C, its exhaust gas channel 31 communicates with the electric heating air channel 21 of the hot air generating device 2 on the drying area A and drying area B, so that the exhaust gas can be used for internal circulation and waste heat utilization In the same way, the waste gas heat recovery device 3 on the drying area C, the drying area D air outlet 12, its waste gas channel 31 is also communicated with the electric heating air channel 21 of the hot air generating device 2 on the drying area A, drying area B . Apparently, the air outlets of the waste gas channel 31 of the waste gas waste heat recovery d...

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Abstract

The invention relates to a drying device of a coating complex machine, which comprises a drying oven and a hot air generation device; the drying device is characterized in that the drying oven comprises at least one drying area containing high-concentration volatile solvent gas and at least one drying area containing low-concentration volatile solvent gas, and the drying area containing high-concentration volatile solvent gas and the dry area containing low-concentration volatile solvent gas are sequentially arranged according to the transportation direction of base materials; each drying area is provided with an air inlet and an air outlet; the air inlet of each drying area is provided with one hot air generation device; the air outlet(s) of the drying area containing high-concentration volatile solvent gas and / or the drying area containing low-concentration volatile solvent gas is / are connected with a waste gas residual heat recovery device; the waste air passage inlet of the waste gas residual heat recovery device is communicated with the air outlet of the drying area; and a fresh air passage outlet of the waste gas residual heat recovery device is communicated with the an electric hot air passage of the hot air generation device. The drying device can safely and effectively use the drying oven to remove the residual heat of high-temperature waste gas.

Description

technical field [0001] The invention relates to a drying device, more specifically, to a drying device of a coating compound machine. Background technique [0002] Existing coating compound machines generally include components such as unwinding device, coating device, compounding device, drying device and winding device, wherein the drying device is one of the important components of the coating compound machine. [0003] The existing drying device generally includes a hot air generating device and an oven, the above oven is provided with an air inlet and an air outlet; the air outlet of the hot air generating device communicates with the air inlet of the oven. [0004] The above-mentioned hot air generating device includes an electric heating air channel, an electric heater and a fan. The air outlet of the above-mentioned electric heating air channel is connected with the air inlet of the fan, and the air outlet of the above-mentioned fan is connected with the air inlet of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B05D3/04
CPCY02P70/10
Inventor 熊鸿刘英亮
Owner GUANGDONG JINMING MACHINERY