Inlet and outlet sealing device for annealing furnace
A sealing device and outlet sealing technology, used in furnaces, heat treatment furnaces, furnace types, etc., can solve problems such as the inability to effectively block the atmosphere in the furnace and the atmosphere outside the furnace, the influence of strip steel, and the poor sealing effect. Air enters the furnace, reducing heat loss and good sealing effect
Inactive Publication Date: 2013-12-25
WISDRI WUHAN WIS IND FURNACE
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Problems solved by technology
At the inlet end of the inlet sealing chamber and the outlet end of the outlet sealing chamber, a single sealing roller is used to isolate the atmosphere inside and outside the furnace. However, the sealing effect of the sealing device with this structure is not very good, and it cannot effectively block the atmosphere in the furnace. and the atmosphere outside the furnace, and will have an adverse effect on the strip
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[0016] The present invention will be further described below in conjunction with accompanying drawing.
[0017] Such as figure 1 , 2 As shown, an annealing furnace inlet and outlet sealing device includes a frame 12, an upper furnace door and a lower furnace door are correspondingly arranged on the upper and lower sides of the frame 12, and the upper furnace door includes an upper furnace door shell 1, an upper bracket 5, an upper bracket The frame bracket 6 is filled with castables 11 in the upper furnace door shell 1, and the upper bracket 5 is supported on the inner side of the upper furnace door shell 1, and the upper bracket bracket 6 is set at both ends of the upper bracket 5, and fixed by bolts The upper furnace door shell 1; the lower furnace door includes the lower furnace door shell 2, the lower bracket 7, and the lower bracket bracket 8, the lower furnace door shell 2 is filled with castables 11, and the inner side of the lower furnace door shell 2 is provided with...
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The invention discloses an inlet and output sealing device for an annealing furnace. The inlet and outlet sealing device for the annealing furnace is characterized by comprising a frame. The upper side and the lower side of the frame are correspondingly provided with an upper furnace door and a lower furnace door. An upper sealing roller located in the upper furnace door is arranged on the frame, and a lower sealing roller located in the lower furnace door is arranged on the frame. When strip steel penetrates between the upper sealing roller and the lower sealing roller in an inserted mode, the space defined by the upper furnace door and the lower furnace door is divided into inlet sealing space and outlet sealing space by the two sealing rollers. Nitrogen pipelines are arranged in the upper furnace door and the lower furnace door respectively and communicated with the inlet sealing space and the outlet sealing space. According to the inlet and outlet sealing device for the annealing furnace, by arranging the double sealing rollers, the strip steel passes between the double sealing rollers, by introducing nitrogen into the upper furnace door and the lower furnace door, certain air pressure is kept in the inlet space and the outlet space of the strip steel, and therefore air is prevented from entering the furnace. The sealing effect is good, in addition, atmosphere in the furnace and atmosphere outside the furnace are effectively isolated, and the air is prevented from entering the furnace.
Description
technical field [0001] The invention relates to a sealing device for an inlet and outlet of an annealing furnace. Background technique [0002] The silicon steel annealing furnace is filled with a nitrogen-hydrogen protective atmosphere. In order to isolate the atmosphere in the furnace from the air outside the furnace and maintain a constant furnace pressure, an inlet and outlet sealed chamber is set up before and after the annealing furnace. A single sealing roller is set at the inlet end of the inlet sealing chamber and the outlet end of the outlet sealing chamber to isolate the atmosphere inside and outside the furnace. However, the sealing effect of the sealing device with this structure is not very good, and it cannot effectively block the atmosphere in the furnace. and the atmosphere outside the furnace, and will have an adverse effect on the strip. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a sealin...
Claims
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IPC IPC(8): C21D9/54C21D1/26
Inventor 曹萍张成
Owner WISDRI WUHAN WIS IND FURNACE