A sealing cover for a rotary kiln

Abstract

A seal cover of a rotary furnace comprises a rotary drum body, a movable seal and double seal bins. The double seal bins comprise a middle bin and a seal bin. The movable seal is installed at the inlet end of the rotary drum body. The front end of the middle bin is connected with the movable seal. The back end of the middle bin is connected with the seal bin. The middle bin is provided with exhaust ports capable of being sealed. The seal bin is arranged at the outlet end of the rotary drum body and used for sealing an outlet of the rotary drum body. Meanwhile, a cover seal ring is arranged between the seal bin and the middle bin. The seal cover of the rotary furnace is of a double bin type structure, when air does not need to be fed in the rotary furnace, the middle bin is sealed. When the rotary furnace needs air, the middle bin is opened, and materials are not prone to entering the movable seal. In this way, the seal performance of the movable seal is guaranteed, and the phenomenon that when air is fed into the rotary furnace, the movable seal gets stuck can also be avoided; and the seal cover of the rotary furnace is simple in structure and high in practicability.

Description

technical field [0001] The invention relates to the technical field of sealing devices, in particular to a sealing cover of a rotary kiln. Background technique [0002] Chinese Patent: Publication No.: CN103603955A discloses a dynamic sealing connection device for a rotary furnace, which can well solve the problem that the rotary furnace cannot be fed with air such as roasting blue tungsten and violet tungsten during actual use. For example, when roasting yellow tungsten, the common practice of operators is to open the viewing hole on the discharge hood, but when opening the viewing hole, due to the high temperature inside the rotary furnace, the air outside the furnace will supplement and enter, which will form an airflow, which will cause the rotary furnace Dust appears in the furnace tube, and even materials enter the dynamic seal of the rotary kiln, causing the dynamic seal to be stuck. Contents of the invention [0003] The technical problem solved by the present inv...

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Problems solved by technology

[0002] Chinese Patent: Publication No.: CN103603955A discloses a dynamic sealing connection device for a rotary furnace, which can well solve the problem that the rotary furnace cannot be fed with air such as roasting blue tungsten and violet tungsten during actual use. For example, when roasting yellow tungsten, the common practice of operators is to open the viewing hole on the discharge hood, but when opening the viewing hole, due to the high temperature inside the rotary furnace, the air outside the furnace will supplement and enter, which will form an airflow, which will cause the rotary furnace There is dust in the furnace tube, and even the material enters the dynamic seal of the rotary kiln, causing the dynamic seal to be stuck

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