Waste gas burning device of nitriding furnace

Abstract

The invention discloses a waste gas burning device of a nitriding furnace, which comprises a first fire ring arranged below a waste gas discharge opening of a waste gas discharge pipeline of the nitriding furnace, a first fire ring gas supply pipeline communicating with the first fire ring, a second fire ring arranged below the first fire ring, a second fire ring gas supply pipeline communicating with the second fire ring, a burner nearby the first fire ring and a second fire ring, and a burner gas supply pipeline communicating with the burner, wherein the burner can light the first fire ring and the second fire ring simultaneously. Compared with the prior art, the waste gas burning device of the nitriding furnace, provided by the invention, has the advantage that the two fire rings arranged up and down can ensure that flammable gas in discharged waste gas burns sufficiently, thereby reducing waste gas pollution to the workshop environment and potential safety hazards.

Description

technical field [0001] The invention relates to the field of waste gas treatment equipment manufacturing, in particular to a nitriding furnace waste gas combustion device. Background technique [0002] In the UNB nitriding furnace production line, the waste gas (including ammonia, nitrogen, water vapor, hydrogen and some other trace gases) generated during the nitriding process is mainly ignited through the burner installed at the waste gas discharge port of the nitriding furnace waste gas discharge pipe. back out. [0003] The existing nitriding furnace exhaust gas combustion device is only equipped with one burner, which has the following defects: 1. The combustion capacity of a single burner is limited, it is difficult to burn the combustible gas in the exhaust gas, and the unburned exhaust gas is scattered to the workshop inside, causing pollution to the workshop environment. Once the burner is accidentally extinguished (by wind or igniter failure, etc.), a large amoun...

AI Technical Summary

Problems solved by technology

[0003] The existing nitriding furnace exhaust gas combustion device is only equipped with one burner, which has the following defects: 1. The combustion capacity of a single burner is limited, it is difficult to burn the combustible gas in the exhaust gas, and the unburned exhaust gas is scattered to the workshop inside, causing pollution to the workshop environment

Once the burner is accidentally extinguished (by wind or igniter failure, etc.), a large amount of combustible exhaust gas will accumulate in the workshop, which may cause an explosion

2. After the nitriding of the product is completed, the furnace door needs to be opened to cause negative pressure in the furnace. If the exhaust gas cannot be ignited and discharged in time, it will be sucked into the furnace under the action of negative pressure, which is prone to safety accidents

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