Annular sealing device and sealing method of bogie hearth type industrial furnace

Abstract

The invention discloses an annular sealing device of a bogie hearth type industrial furnace. The annular sealing device of the bogie hearth type industrial furnace comprises a sealing groove, a furnace body sealing cutter, a furnace door sealing cutter, a bogie hearth sealing cutter and a lifting driving device, wherein the sealing groove is formed around a bogie hearth for a circle; the furnace body sealing cutter which is arranged at the bottom of a furnace body is corresponding to the sealing groove; the furnace door sealing cutter which is arranged at the bottom of a furnace door is corresponding to the sealing groove; the bogie hearth sealing cutter is annularly arranged around the periphery of the bogie hearth; and liquid sealing mediums are filled in the sealing groove. According to the annular sealing device of the bogie hearth type industrial furnace, an annular sealing groove structure is utilized and the sealing effects of the connecting portions of the sealing cutters which are arranged on the lateral wall of the furnace body, the furnace door and the bogie hearth are improved, so that the sealing performance between the furnace body and the bogie hearth is enhanced and the adverse effect and harm caused by furnace heat and atmosphere overflow are eliminated. In addition, the invention also provides an annular sealing method of the bogie hearth type industrial furnace. According to the annular sealing method of the bogie hearth type industrial furnace, an annular communicated sealing mode is utilized, so that the sealing performance between the furnace body and the bogie hearth is guaranteed, the operation is simple and convenient, the control is easy, and the safety is high.

Description

technical field [0001] The invention belongs to the field of trolley furnaces, and relates to an annular sealing device and a sealing method for a trolley-type industrial furnace. Background technique [0002] The structure of the traditional trolley industrial furnace includes a fixed furnace body, a movable trolley inside the furnace, a trolley traction mechanism, a furnace door, a furnace door mechanism device, a sealing device between the furnace body and the platform workshop, and a heating system, temperature control system, Exhaust system. [0003] In the prior art, the sealing between the fixed furnace body and the mobile trolley of an industrial furnace often adopts a fixed sand sealing structure or a movable flexible sealing structure to realize the sealing effect between the furnace body and the trolley workshop. [0004] The fixed sand seal seal adopts the structure of setting a fixed sand seal groove (or sand seal knife) and a movable sand seal knife (or sand s...

AI Technical Summary

Problems solved by technology

However, because the flexible sealing mechanism is a segmented structure, there is relative movement between each segment, so sealing treatment is also required between each sealing block to ensure the overall sealing effect; in addition, the sealing structure of the furnace side, the sealing structure of the furnace tail and the furnace The sealing structure of the head is set independently, and the sealing of the connecting parts is difficult, so that the complete sealing effect cannot be achieved

For occasions with strict requirements on the furnace pressure and atmosphere in the furnace, the performance of this structure is difficult to meet

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