A tail gas treatment method for degreasing and sintering continuous furnace

Abstract

The invention discloses a tail gas treatment method of a degreasing and sintering continuous furnace. S1. Collection: collect the tail gas of the degreasing furnace in the tail gas chamber to ensure the sealing of the tail gas chamber; S2. Cool down: use heat-absorbing equipment to absorb the tail gas in the tail gas chamber and store the absorbed heat; S3. Dust removal: the tail gas removes the large particles under the action of the water curtain spray formed by the water curtain water system; then the tail gas passes through the filter and dust removal module, and is discharged in the electrostatically charged chemical fiber Under the action of electrostatic adsorption and fiber mesh filtration, the fine particles and oil mist can be efficiently filtered out. Compared with the prior art, the degreasing furnace tail gas treatment equipment provided by the present invention can conveniently and efficiently remove particles and toxic gases in the degreasing furnace tail gas, overcome the problem that the existing degreasing furnace tail gas has a lot of smoke and dust and endanger health, and has a high Environmental benefits, and low cost, easy to use.

Description

technical field [0001] The invention relates to a continuous degreasing and sintering furnace, and more specifically relates to a tail gas treatment method of a continuous degreasing and sintering furnace. Background technique [0002] The combustion type degreasing furnace is a mechanical device that uses heating to volatilize and burn the grease on the surface of the workpiece. Combustion degreasing furnace can be combined with carburizing furnace (or nitriding furnace), etc., and the combustible tail gas discharged from carburizing furnace is used as the heat source of degreasing furnace. The workpiece enters the carburizing furnace after the degreasing furnace to clean the surface and increase the carburizing capacity. [0003] However, when the degreasing and sintering continuous furnace is used, a large amount of tail gas will be generated, which will pollute the environment. The existing method for removing tail gas is expensive, and the effect of tail gas treatment ...

AI Technical Summary

Problems solved by technology

[0003] However, when the degreasing and sintering continuous furnace is used, a large amount of tail gas will be produced, which will pollute the environment. The existing method for removing tail gas is expensive, and the effect on tail gas treatment is not obvious, and the tail gas is not cleaned thoroughly, causing environmental damage. Pollution. At present, in the aspect of metal powder injection molding, the tail gas often contains toxic gases such as formaldehyde. The continuous furnace that is often used in the heat treatment is degreasing after the tail gas treatment.

When the heat treatment furnace performs heat treatment, in order to release the binder and metal dust as much as possible, it is often achieved by increasing the supply flow rate of the atmosphere gas, which will lead to an increase in the emission of waste gas with binder, and the exhaust gas The treatment is only the pre-filtering treatment, which has a negative impact on the subsequent firing treatment, and cannot meet the consistency and mass production, the production cycle is long, and there is smoke.