Low-pass filtering steady current shaping type temperature warming system for carbon roasting furnace

Abstract

The invention discloses a low-pass filtering steady current shaping type temperature warming system for a carbon roasting furnace. The system mainly consists of a processor, an A / D conversion module and a displayer both connected with the processor, and a temperature sensor connected with the A / D conversion module. The system is characterized in that the processor is connected with a low-pass filtering warning circuit; the low-pass filtering warning circuit is connected with a steady current shaping circuit; and the low-pass filtering warning circuit consists of a trigger circuit connected with the processor, a low-pass filtering circuit connected with the trigger circuit and a warning circuit connected with the low-pass filtering circuit. The system is simple in structure and low in cost, can immediately give an alarm through the low-pass filtering warning circuit when the smoke temperature is overhigh, and can timely treat dangers to prevent the combustion and caused fire or even the explosion risk due to overheated smoke, so that the production safety is guaranteed, and the system is suitable for promotion and application.

Description

technical field [0001] The invention relates to an alarm system, in particular to a temperature alarm system in the form of low-pass filtering, steady flow and rectification for a carbon roaster. Background technique [0002] Carbon roasting furnaces usually use petroleum coke and pitch as raw materials. Under high temperature conditions, the roasting workshop completes the roasting of vibration-shaped raw carbon blocks into qualified cooked carbon blocks. The temperature of raw carbon block is 200-1200°C during the roasting process, and a large amount of roasting flue gas is released during this process. The main components of the roasting furnace flue gas are asphalt fume, tar and various combustible dust, and the flue gas outlet temperature is as high as 900°C. At high temperature, these flue gases must be discharged from the flue in time, otherwise it is easy to overheat and burn, and even cause an explosion. In order to facilitate the detection of hidden situations, it...

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Problems solved by technology

[0003] The purpose of the present invention is to overcome the defects of low sensitivity and unresponsiveness of the alarm system currently used in carbon roasting furnaces, which cannot immediately detect dangerous situations, and provide an alarm system that is not only simple in structure, but also low in cost, and can immediately detect super high flue gas temperature. Hidden dangers, in order to deal with dangerous situations in time

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