Burner system capable of automatically cleaning tar and method for treating burner tar using the system

Abstract

The invention discloses a burner nozzle system capable of automatically clearing tar and a burner nozzle tar treatment method adopting the burner nozzle system. The burner nozzle system comprises a fuel inlet pipe, an air inlet pipe and a burner nozzle jet pipe which is simultaneously communicated with the fuel inlet pipe and the air inlet pipe. The burner nozzle system further comprises automatic clearing devices and time sequence control devices for periodically controlling the automatic clearing devices to be started and stopped, wherein each automatic clearing device comprises a medium rinsing channel which is communicated with the burner nozzle jet pipe, and a rinsing medium source, and a control valve is arranged on each medium rinsing channel and connected with each time sequence control device. The burner nozzle tar treatment method comprises the steps that each burner nozzle burner corresponds to one automatic clearing device, and each time sequence device is used for periodically controlling each automatic clearing device to periodically start and execute an instruction of clearing each burner nozzle. The burner nozzle system and the burner nozzle tar treatment method have the advantages of high automation degree, capabilities of monitoring the tar blocking condition in real time, removing tar in the burner nozzles in the first time, improving the ignition quality of each burner nozzle and improving the operation efficiency of an ignition furnace, and the like.

Description

technical field [0001] The invention mainly relates to the field of sintering process equipment, in particular to a burner system capable of automatically cleaning tar and a burner tar treatment method using the system. Background technique [0002] In the modern sintering process, the ignition furnace is used to provide a high-temperature ribbon flame to the surface of the mixture, so that the solid fuel in it is ignited and burned, and the surface mixture is sintered under the heat release of the high-temperature flue gas of the ignition furnace and the solid fuel combustion. At the same time, sufficient oxygen is provided by the exhaust fan to transfer the heat accumulated in the surface layer to the next layer of mixture, so that the solid fuel in the next layer continues to burn, so that the sintering process proceeds rapidly downwards and completes the sintering process. [0003] The burner is a common name for the combustion device used on the ignition furnace, which ...

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Problems solved by technology

[0007] 1. The gas quality is poor and contains a lot of tar: Generally, large iron and steel factories have filters at the outlet of the gas pressurization station, which can filter the gas coming out of the pressurization station, but individual small and medium-sized enterprises often cancel the filter in order to save costs. Filter, which results in the low quality of the gas sent to the ignition furnace, with a high proportion of impurities, water and tar in the interior, which causes the burner to be blocked by tar

[0008] 2. There is no tar detection system in the ignition furnace, and the burner cannot be cleaned in time: tar clogging the burner is not a short-term formation, but a long-term accumulation of tar in the burner, and the final consequence is

Because there is no method to effectively detect the amount of tar in the burner, there is no tar detection device in the traditional ignition furnace burner system, which leads to the operator having to closely monitor the combustion state of the burner flame during the production process of the ignition furnace , when the burner is found to be burning abnormally, such as the flame is weak, the outer wall of the burner turns red, etc., the burner must be cleaned of tar immediately

If the operator cannot detect the accumulation of tar in the burner in time, it is too late to stop production for maintenance when the burner cannot spray flame or the flame burns back into the fuel pipeline

[0009] 3. There is no automatic tar removal device: the traditional ignition furnace burner system is not equipped with an automatic tar removal device. When the operator cleans the tar in the burner, he needs to close the valves on the gas and air pipes connected to the burner first, and then put the The large nut at the end of the burner is unscrewed, and a long steel drill is often used to penetrate from the upper part of the burner. This primitive method is used to drive the tar out of the burner, which not only damages the internal structure of the burner, but also At this time, the burner has been blocked by tar, and the gas cannot enter the furnace. Workers are likely to be suffocated by the residual gas in the burner during operation, and the safety factor is extremely low.

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