burner

Abstract

The invention relates to a burner, and relates to the technical field of mechanical equipment. The main purpose is to monitor the wind speed of the air inlet pipe of the burner in real time, so as to facilitate the real-time control of the wind speed in the air inlet pipe, so that the burner is in the best position. working status. The main technical solutions are: burner, including air inlet pipe, pressure measuring device, pressure transmitter, processing unit and display unit; pressure measuring device is used to measure the air duct pressure in the air inlet pipe; pressure transmitter and The pressure measuring device is connected, and the pressure transmitter is used to convert the measured air duct pressure into an electrical signal output; the processing unit is connected to the pressure transmitter; the display unit is connected to the processing unit, and the display unit is used to display the wind speed in the air inlet duct information. The invention is mainly used for measuring and displaying the wind speed of the pulverized coal burner of the cement rotary kiln in real time.

Description

technical field [0001] The invention relates to the technical field of mechanical equipment, in particular to a burner. Background technique [0002] The cement rotary kiln is the main equipment of the cement clinker production line. The fuel consumption of the cement rotary kiln and the flame shape of the kiln head have a significant impact on the firing of cement clinker. [0003] The burner is a device that properly mixes fuel and air to make the fuel ignite stably and burn completely. A typical cement rotary kiln burner includes clean air ducts (including axial flow air ducts and swirl air ducts), coal air ducts and central air ducts. The shape and size of the flame are determined by the wind speed, pressure and coal delivery volume of each air channel of the burner of the cement rotary kiln. [0004] At present, the wind speed and pressure of each air duct of the cement rotary kiln burner in the cement plant are controlled by manual valves, and the measurement can onl...

AI Technical Summary

Problems solved by technology

[0004] At present, the wind speed and pressure of each air duct of the cement rotary kiln burner in the cement plant are controlled by manual valves, and the measurement can only be made by opening holes in each pipe and inserting a pitot tube for one-time measurement, and real-time online monitoring cannot be achieved. The wind speed in the air inlet duct cannot be controlled in real time

When the wind speed of the net wind (axial flow wind and swirling wind) is low, or the ratio of the wind speed of the net wind to the pulverized coal delivery volume is not appropriate, the clean wind cannot disperse the pulverized coal, and the pulverized coal falls into the In the clinker, the result is that the loss on ignition of the clinker out of the kiln is relatively high (the loss on ignition of the clinker is less than 0.5% under normal circumstances, and the loss on ignition of the clinker mixed with unburned coal powder can reach up to 1.5%), which affects the cement. clinker strength

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