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Rapid preheating device

A preheating device and fast technology, which is applied in the direction of surface coating liquid device, pretreatment surface, non-electric variable control, etc., can solve the problems of low heating efficiency and large equipment footprint

Active Publication Date: 2019-12-20
CRRC YANGTZE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main disadvantage of this method is that it uses hot air convection to transfer heat, the heating efficiency is low, and the equipment occupies a large area.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0075] As an optional implementation, the device also includes:

[0076] A heat dissipation system, arranged on the preheating cover, for dissipating heat from the preheating cover;

[0077] The controller system is electrically connected to the heat dissipation system, and is used to control the heat dissipation system to dissipate heat from the preheating shield when the temperature in the preheating shield exceeds a preset temperature value.

[0078] Specifically, see figure 1 and 2 , the side of the preheating cover is provided with a ventilation structure; specifically, a movable door 41, which is also convenient for observing working conditions and daily maintenance.

[0079] The cooling system includes:

[0080] The blower fan 7 is arranged on the top of the preheating hood, and is used for exhausting air from the inside of the preheating hood to dissipate heat.

[0081] Concretely, fan 7 is the mode of forced exhaust of axial flow fan 7, and louver 42 can also be s...

Embodiment 1

[0086] Take the preheating of 10mm thick steel plate 6 as an example. The steel plate 6 is conveyed forward through the roller table 61 of the production line, and the conveying speed is 6m / min. When the first detection device 8 senses that the steel plate 6 is about to pass, the control system detects the temperature outside the preheating hood, and selects to automatically start the infrared lamp according to the temperature parameters. Tube heating: when the temperature is higher than 15°C, the heating will not start; when the temperature is between 10°C and 15°C, choose to automatically start a group of infrared lamps 3 for heating; when the temperature is lower than 10°C, choose to automatically start all two groups of infrared lamps 3 heat. The preheating time of steel plate 6 is about 20s.

[0087] When the first detection device 8 does not sense the passage of the steel plate for a long time (such as when it is set to 20s), the control system will automatically turn o...

Embodiment 2

[0091] When the 3mm thick steel plate 6 is preheated, the conveying speed of the roller table 61 in Example 1 can be increased to 10m / min, and the preheating time of the steel plate 6 is about 12s. Other procedures are the same as in Example 1.

[0092] The above-mentioned technical solutions in the embodiments of the present application have at least the following technical effects or advantages:

[0093]The device of the present invention is used to preheat the steel plate 6 in the pretreatment process of the steel plate 6, and includes a preheating cover, an infrared heating system and a control system; wherein, the infrared heating system includes a The infrared lamp tubes 3 on the upper and lower sides are used to heat the steel plate 6 passing through the infrared heating system from the upper and lower sides; the preheating cover covers the infrared heating system from the upper and lower sides to form a heat gathering space; The control system is electrically connecte...

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PUM

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Abstract

The invention discloses a rapid preheating device which is used for preheating a steel plate in a steel plate pretreatment process. The rapid preheating device comprises a preheating cover, an infrared heating system and a control system, wherein the infrared heating system comprises infrared lamp tubes arranged on the upper side and the lower side of the steel plate and used for heating the steelplate penetrating through the infrared heating system from the upper side and the lower side; the preheating cover covers the infrared heating system from the upper side and the lower side to form aheat collecting space; the control system is electrically connected with the infrared heating system and used for starting the infrared heating system to preheat the steel plate when detecting that the distance between the steel plate and an inlet of the preheating cover is smaller than a preset distance value, so that the temperature of the steel plate meets a preset temperature condition after the steel plate passes through the infrared heating system; and the problems that existing hot air preheating equipment is large and the heating efficiency is low can be solved, and the size of the device is reduced.

Description

technical field [0001] The invention relates to the technical field of paint coating, in particular to a rapid preheating device. Background technique [0002] The steel pretreatment line is a production line used for steel blanking, shot blasting and rust removal before processing, and spraying temporary protective pre-coating primer (also known as shop primer), which is widely used in the steel product processing and manufacturing industry. Some steel pretreatment lines are equipped with a preheating device. Its function is mainly to preheat the steel before painting when the temperature is low in winter, so as to avoid the temperature of the steel plate being too low to affect the drying speed of the paint, and it also has the dehumidification effect on the surface of the steel plate. When the temperature is high and does not affect the drying speed of the paint, the preheating device is generally not used. [0003] At present, preheating devices used in industry general...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05D3/02G05D23/20
CPCB05D3/0227G05D23/20
Inventor 陈强肖艳陶加法周增光刘华学陈文兴刘军祥石忠华
Owner CRRC YANGTZE CO LTD