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Device and method for automatically sealing and opening furnace cover of smelting furnace for magnesium liquid positive pressure transfer

An automatic sealing and smelting furnace technology, which is applied in the direction of furnaces, crucible furnaces, furnace components, etc., can solve the problems of high labor intensity, hidden safety hazards, and low automation, and achieve good sealing and transmission functions, good heat insulation and heat preservation The effect of characteristics and simple structure

Pending Publication Date: 2022-04-29
NORTHEASTERN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems that the sealing and opening of the furnace cover of the current magnesium alloy semi-continuous casting smelting furnace requires manual operation, low degree of automation, high labor intensity, and potential safety hazards, the invention provides an automatic smelting furnace cover for magnesium liquid positive pressure transfer. Device and method for sealing and opening

Method used

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  • Device and method for automatically sealing and opening furnace cover of smelting furnace for magnesium liquid positive pressure transfer
  • Device and method for automatically sealing and opening furnace cover of smelting furnace for magnesium liquid positive pressure transfer
  • Device and method for automatically sealing and opening furnace cover of smelting furnace for magnesium liquid positive pressure transfer

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Effect test

Embodiment 1

[0051] The structure of a device for automatic sealing and opening of a smelting furnace cover used in positive pressure transfer of molten magnesium used in the embodiment of the present invention is as follows: figure 1 As shown, the top view is figure 2 , the structure diagram of the furnace cover is image 3 , Schematic diagram of the structure of the grasping device, see Figure 4 .

[0052] In an embodiment of the present invention, a device for automatically sealing and opening the furnace cover of a smelting furnace for positive pressure transfer of magnesium liquid includes a furnace cover, a grasping device 3, a liquid guide integration device 4 and a control system. The furnace cover includes a bottom plate 1 and a heat preservation cover 2. The bottom plate 1 is a circular steel plate. On the eccentric position of the bottom plate of the furnace cover, a liquid guide flange 14, a pressure gauge 7, a safety valve 14 and a temperature measuring device 5 are arrang...

Embodiment 2

[0068] A device for automatically sealing and opening the furnace cover of a smelting furnace for positive pressure transfer of magnesium liquid, including a furnace cover, a liquid guiding flange arranged on the furnace cover, a pressure gauge, a safety valve and a temperature measuring device; it also includes a plurality of grasping devices , Integrated liquid guiding device and control system;

[0069] The furnace cover includes a bottom plate and a heat preservation cover. The heat preservation cover is funnel-shaped. The material of the heat preservation cover is high-temperature resistant stainless steel, and the thickness is preferably 5-10mm. Circular reinforcing ribs and multiple strip-shaped reinforcing ribs evenly distributed on the outer periphery of the circular reinforcing ribs prevent the furnace cover from being deformed at high temperature; the liquid guiding flange, pressure gauge and safety valve are all arranged in the area of ​​the circular reinforcing rib...

Embodiment 3

[0090] The device for automatically sealing and opening the furnace cover of a smelting furnace for positive pressure transfer of molten magnesium in this embodiment is different from that of Embodiment 1 in that: when the diameter of the furnace cover is 4m, the thickness of the cover is 60mm, and the number of grasping devices is 20 indivual.

[0091] In the grasping device that present embodiment adopts, adopt pneumatic expansion and contraction.

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Abstract

The invention discloses a device and a method for automatically sealing and opening a furnace cover of a smelting furnace for magnesium liquid positive pressure transfer, and belongs to the technical field of casting. The device for automatically sealing and opening the furnace cover of the smelting furnace for magnesium liquid positive pressure transfer comprises the furnace cover, a liquid guide flange arranged on the furnace cover, a pressure gauge, a safety valve and a temperature measuring device, a heat preservation cover in the furnace cover is funnel-shaped, and the heat preservation cover and the bottom plate are matched to form a heat preservation space; reinforcing ribs are arranged on the bottom plate; the multiple grasping devices are evenly distributed in the circumferential direction of the furnace cover, and the liquid guiding integrated device is provided with a furnace pressure control pipeline, a protective gas conveying pipeline, a magnesium liquid high-temperature melt conveying pipeline and a liquid guiding integrated device flange. The furnace cover is compact and simple in structure, reasonable in arrangement and low in cost, the grasping device is arranged to achieve sealing and uncovering of a furnace through the mechanical furnace cover, and the safety degree in the semi-continuous casting process is improved; the grasping device achieves mechanical sealing outside the furnace, shielding gas achieves dynamic pressure maintaining sealing inside the furnace, and the internal and external dual-sealing effect is achieved.

Description

technical field [0001] The invention belongs to the technical field of casting, and in particular relates to a device and method for automatically sealing and opening a furnace cover of a smelting furnace for positive pressure transfer of molten magnesium. Background technique [0002] Magnesium has high chemical activity. On the one hand, its melt easily reacts with oxygen, nitrogen, water, etc., and even burns and explodes. The purification level directly affects the corrosion resistance of wrought magnesium alloy ingots or castings. Therefore, in the refining and casting process of magnesium alloys, seamless stainless steel tubes must generally be used as the flow channel for melt transfer, in which sealed pressure is used as the driving force to realize positive pressure transfer of magnesium liquid, which is the current semi-continuous casting of magnesium alloys. The most commonly used technical method, the specific method is to cover and seal the magnesium alloy melt...

Claims

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Application Information

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IPC IPC(8): F27B14/08F27B14/04F27D1/18
CPCF27B14/08F27B14/04F27D1/1808F27D2001/1825F27B2014/045Y02P10/20
Inventor 乐启炽闫家仕蒋燕超王彤贾永辉赵大志宝磊廖启宇
Owner NORTHEASTERN UNIV
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