Automatic adjusting mechanism and adjusting method for internal and external air of combustor

Abstract

The invention discloses an automatic adjusting mechanism and an adjusting method for internal and external air of a combustor. The adjusting mechanism enables a traditional combustor manual adjustingmode to be mechanically modified into a mixed adjusting mode of two modes of common motor driving and servo motor driving, and the adjustment amount is output through a 4-20 mA signal to realize the remote adjustment through a DCS. The automatic adjusting mechanism and the adjusting method for the internal and external air of the combustor have the advantages that an electric adjusting mechanism is used for replacing an original manual adjusting mechanism, so that the labor amount of the manual adjustment process is reduced, adjustment and fire observation are synchronously carried out, the original situations that adjustment is firstly carried out, then fire observation is carried out, next, adjustment is carried out again and then fire observation is carried out again are thoroughly avoided, and the desired flame shape can be quickly achieved in the dynamic adjustment process; and by means of the DCS remote adjustment digitalization mode, the adjustment can be more flexible and quicker, moreover, an intelligent control system can be connected, so that the industrial intelligent real-time online fine adjustment is realized, and the adjustment effect is enabled to reach the optimalstate.

Description

technical field [0001] The invention relates to the technical field of combustion equipment, in particular to an automatic adjustment mechanism and an adjustment method for internal and external air of a burner. Background technique [0002] The burner is the core combustion equipment widely used in boilers, calciners, heating furnaces, rotary kilns and other industrial kilns. Fully release heat under combustion. [0003] Since the burner has been used in the firing of the cement industry, the adjustment of the air volume and the cross-sectional area (angle) of the air duct of the burner are all manually adjusted, with poor adjustment lag and flexibility. Because the adjustment needs to be done manually on site, and the adjustment result needs to be determined by watching the fire on site and matching the cylinder temperature scanning curve in the central control room far away from the site. If the result is not satisfactory, it needs to be adjusted and observed again. [...

AI Technical Summary

Problems solved by technology

[0003] Since the burner was used in the cement industry, the air volume adjustment and the cross-sectional area (angle) adjustment of the burner are all manually adjusted, with poor adjustment lag and flexibility.

Because the adjustment needs to be done manually on site, and the adjustment result needs to be determined by watching the fire on site and cooperating with the cylinder temperature scanning curve in the central control room far away from the site. If the result is not satisfactory, it needs to be adjusted and observed again.

[0004] The original adjustment mode mainly requires the cement process engineer (or a special, professional adjustment personnel) to complete the adjustment and process tracking by one person based on the adjustment experience and the experience of watching the fire. The method is rough and the fineness is poor.

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