Honeycomb reinforced furnace cover

Abstract

The utility model discloses a honeycomb reinforced furnace cover, belongs to the field of industrial kilns, and is particularly suitable for the technical field of magnesium reduction furnaces. The cover plate is formed by splicing a plurality of cover plate single bodies (1), each cover plate single body (1) comprises a working lining (6), groove areas are formed in the surface of each working lining (6) at intervals through rib plates (2), the groove areas comprise first groove areas (3) or / and second groove areas (7), the first groove areas (3) are of independent closed structures defined by the rib plates (2), and the second groove areas (7) are located at the edges of the cover plate single bodies (1). The second groove areas (7) at the edges of every two adjacent cover plate single bodies (1) are spliced to form a closed structure. According to the honeycomb reinforced furnace cover, the surface is of a honeycomb structure through the groove areas and the concave parts formed by the rib plates at intervals, so that the effect of reducing the weight of the furnace cover is achieved, the structural stability and integrity of the furnace cover are improved through the honeycomb structure, particularly the breaking strength of the furnace cover is improved, and the safety of the furnace cover is greatly improved.

Description

Technical Field

[0001] The invention discloses a honeycomb reinforced furnace cover, belonging to the field of industrial furnaces, and particularly suitable for the technical field of reduction furnaces for producing metal magnesium. Background Art

[0002] In industry, magnesium smelting technology mainly refers to thermal reduction methods represented by the Pidgeon process. The traditional Pidgeon process uses a horizontal tank reduction furnace, but the automation and continuity of horizontal tank production are extremely poor, and the production capacity is low. In recent years, vertical tank reduction furnaces have begun to be used in production to solve the problems existing in the above-mentioned horizontal tank reduction furnaces.

[0003] In the process of producing magnesium metal using a vertical tank reduction furnace, the structural stability of the reduction furnace cover plays a key role in production safety. Traditional furnace covers generally have the following problems: the span of the traditional furnace cover exceeds 2000mm, the upper part of the furnace cover must be covered with insulation materials, and the furnace cover also has its own weight, and the furnace cover bears a huge load. This requires the furnace cover to have high bending resistance. During the production process, the insertion and removal of the reduction tank are prone to bumping against the furnace cover, causing mechanical damage. At the same time, there is a temperature gradient around the tank body, which produces large thermal stress and easily causes the furnace cover to break.

[0004] The commonly used structure at present is that the working lining is a curved surface structure. The entire furnace cover is composed of multiple furnace cover plates, and a rib plate with a width of about 150 mm is added to the working surface of the cover plate. Although this structure can greatly improve the bending resistance of the furnace cover, the bending resistance of the circular hole in and out of the tank body is poor, and it is easy to crack during the production process. Since the vertical thickness at this position is small, once a fracture occurs, it is easy to cause a collapse accident. Utility Model Content

[0005] The technical problem to be solved by the utility model is: to overcome the shortcomings of the prior art and provide a groove area formed by rib plates so that the surface has a honeycomb structure, thereby reducing the weight of the furnace cover, and the honeycomb structure improves the stability and integrity of the furnace cover structure, especially the honeycomb reinforced furnace cover with improved flexural strength.

[0006] The technical solution adopted by the utility model to solve its technical problems is: the honeycomb reinforced furnace cover is characterized in that: it is spliced ​​together by a number of cover plate monomers, each cover plate monomer includes a working lining, a rib plate is protrudingly provided on the surface of the working lining, and a groove area is formed on the surface of each working lining by the rib plates. The groove area includes a first groove area and / or a second groove area, wherein the first groove area is an independent closed structure formed by surrounding the rib plate, and the second groove area is located at the edge of the cover plate monomer, and the second groove areas at the edges of two adjacent cover plate monomers are spliced ​​into a closed structure.

[0007] Preferably, the working lining is an arc-shaped plate; on the surface of each working lining, rib plates are arranged at both side edges in the length direction of the working lining.

[0008] Preferably, transition portions are arranged at the joint between the bottom of the rib plate and the working lining, as well as at the bending portion of the rib plate.

[0009] Preferably, several cover plate monomers are an integrated structure, and the working lining and the rib plate in each cover plate monomer are an integrated structure.

[0010] Preferably, a hollow portion is provided in the cover plate unit.

[0011] Preferably, the hollow portion includes an independent cover plate hollow hole formed on the surface of the cover plate unit surrounded by the rib plate.

[0012] Preferably, the hollow portion includes a hollow hole formed by splicing the notches at the edges of two adjacent cover plate monomers.

[0013] Preferably, the hollow portion includes a rib plate hollow hole opened on the rib plate side wall.

[0014] Preferably, the thickness of the working lining is 40 mm to 400 mm.

[0015] Preferably, the thickness of the rib plate is 50 mm to 300 mm, and the height of the rib plate in the vertical direction of the working lining surface is 60 mm to 1500 mm.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] On the surface of the honeycomb enhanced furnace cover, the groove area formed by the ribs makes the surface present a honeycomb structure, thereby reducing the weight of the furnace cover, and the honeycomb structure improves the structural stability and integrity of the furnace cover, especially the bending strength of the furnace cover. The safety of the furnace cover is greatly improved. At the same time, the honeycomb structure makes the honeycomb enhanced furnace cover have excellent characteristics of relieving various stresses. Even if cracks appear in the tank body, due to the increase in vertical thickness and lateral extrusion, the honeycomb enhanced furnace cover will not collapse, which greatly improves the integrity and safety of the furnace cover.

[0018] Transition parts are arranged at the joints between the bottom of the rib plate and the working lining, as well as at the bending parts of the rib plate. The transition parts act as reinforcing ribs, further improving the connection strength between the rib plate and the working lining, and further improving the overall strength of the honeycomb enhanced furnace cover.

[0019] Each independent closed groove area or each closed groove area formed by docking is filled with a heat-insulating material to improve the heat-insulating property of the honeycomb enhanced furnace cover.

[0020] Independent or spliced ​​hollow holes are arranged in the cover plate monomer, which reduces the weight of the cover plate monomer. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the local structure embodiment 1 of the honeycomb enhanced furnace cover.

[0022] Figure 2 This is an axonometric view of the honeycomb enhanced furnace cover plate monomer embodiment 1.

[0023] Figure 3 It is a top view of the honeycomb enhanced furnace cover plate monomer embodiment 1.

[0024] Figure 4 for Figure 3 Bottom view of .

[0025] Figure 5 for Figure 3 Right view of .

[0026] Figure 6 for Figure 3 AA section view.

[0027] Figures 7 to 12 The honeycomb reinforced furnace cover embodiment 2 corresponds to Figure 3 Schematic diagram of the AA section view.

[0028] Fig.13 It is a schematic diagram of the local structure embodiment 3 of the honeycomb enhanced furnace cover.

[0029] Fig.14 This is an axonometric view of Example 3 of a reinforced furnace cover plate monomer for a tank reduction furnace.

[0030] Fig.15 It is a top view of the honeycomb enhanced furnace cover plate monomer embodiment 4.

[0031] Among them: 1, cover plate monomer 2, rib plate 3, first groove area 4, arc-shaped mouth 5, transition part 6, working lining 7, second groove area 8, rib plate hollow hole 9, cover plate hollow hole 10, closed area. DETAILED DESCRIPTION

[0032] Figures 1 to 6 It is the best embodiment of the utility model, and the following Figures 1 to 15 The utility model is further described.

[0033] Embodiment 1:

[0034] like Figure 1 As shown, a honeycomb reinforced furnace cover is composed of a plurality of cover plate monomers 1 arranged in sequence to form a whole, and all the cover plate monomers 1 are cast into an integrated structure.

[0035] like Figures 2~6 As shown, the cover plate monomer 1 includes a working lining 6, which is an arc-shaped plate body. Two arc-shaped openings 4 are respectively opened at the two edges in the length direction of the working lining 6. When the cover plate monomer 1 is used to form the entire furnace cover, after two adjacent cover plate monomers 1 are butt-jointed, the corresponding two arc-shaped openings 4 are butt-jointed to form a cylindrical hollow hole. The thickness of the working lining 6 is 40mm~400mm. The hollow hole formed by the arc-shaped openings 4 on the side of the cover plate monomer 1 has the effect of reducing the weight of the furnace cover.

[0036] A rib plate 2 is formed on the upper surface of the cover plate monomer 1 along the radial direction of the working lining 6, and the rib plate 2 protrudes from the upper surface of the working lining 6. The rib plates 2 are respectively located at two edges in the length direction of the working lining 6, and the contour of the rib plate 2 is the same as the contour at the edge of the working lining 6. The thickness of the rib plate 2 is 50mm~300mm, and the height of the rib plate 2 in the vertical direction of the surface of the working lining 6 is 60mm~1500mm.

[0037] Transition portions 5 are arranged at the joint between the bottom of the rib plate 2 and the working lining 6, as well as at the bending portion of the rib plate 2. The transition portions 5 act as reinforcing ribs, further improving the connection strength between the rib plate 2 and the working lining 6, and further improving the overall strength of the honeycomb enhanced furnace cover.

[0038] The ribs 2 on both sides are combined into one in the middle of the working lining 6, and a first groove area 3 is formed in the upper part of the center of the working lining 6. The bottom of the first groove area 3 is the top surface of the working lining 6. On the upper surface of the working lining 6, the two ends in the length direction are separated by the ribs 2 to form a second groove area 7. The second groove area 7 is open. When the furnace cover is formed as a whole by the cover plate monomer 1, after the adjacent two cover plate monomers 1 are docked, the corresponding two second groove areas 7 are docked to form a closed concave part with the same opening shape as the first groove area 3. Insulating materials are filled in each closed first groove area 3 and the closed second groove area 7 formed by docking, so as to improve the insulation properties of the honeycomb enhanced furnace cover. Refractory materials can be filled in the first groove area 3 and the second groove area 7.

[0039] The surface of the honeycomb enhanced furnace cover has an independently closed first groove area 3 and a second groove area 7 that is connected to form a closed groove, so that the surface of the honeycomb enhanced furnace cover has a honeycomb structure, and the honeycomb structure improves the structural stability and integrity of the furnace cover, especially the bending strength of the furnace cover. The safety of the furnace cover is greatly improved. At the same time, the honeycomb structure makes the honeycomb enhanced furnace cover have excellent characteristics of relieving various stresses. Even if cracks appear in the tank body, due to the increase in vertical thickness and lateral extrusion, the honeycomb enhanced furnace cover will not collapse, which greatly improves the integrity and safety of the furnace cover.

[0040] Embodiment 2:

[0041] The difference between this embodiment and the first embodiment is that in this embodiment, the position of the opening in the cover plate monomer 1 is changed or increased so as to retain or further reduce the weight of the cover plate monomer 1. Specifically:

[0042] like Figure 7 As shown, a plurality of circular rib plate hollow holes 8 are respectively opened on both sides and the middle of the rib plate 2 .

[0043] like Figure 8 As shown, only a number of circular rib plate hollow holes 8 are opened in the middle of the rib plate 2 .

[0044] like Fig. 9 As shown, only a number of circular rib plate hollow holes 8 are opened on both sides of the rib plate 2.

[0045] like Fig.10 As shown, a plurality of elliptical rib plate hollow holes 8 are respectively opened on both sides and the middle of the rib plate 2 .

[0046] like Fig.11 As shown, a number of elliptical rib plate hollow holes 8 are formed only in the middle of the rib plate 2 .

[0047] like Fig.12 As shown, only a number of elliptical rib plate hollow holes 8 are opened on both sides of the rib plate 2.

[0048] Embodiment 3:

[0049] The difference between this embodiment and embodiment 1 is that the structure of the cover plate unit 1 is different from that of embodiment 1. Figures 13 and 14 As shown, in this embodiment, the middle of the cover plate unit 1 is surrounded by the rib plate 2 to form an independent cover plate hollow hole 9.

[0050] The hollow holes in the cover plate unit 1 may be arranged in any arrangement and combination of the schemes in Embodiments 1 to 3.

[0051] Embodiment 4:

[0052] The difference between this embodiment and the first embodiment is that a closed area 10 is provided at the arc-shaped opening 4 on the side of the cover plate monomer 1 of the first embodiment. When the honeycomb enhanced furnace cover is formed by the cover plate monomer 1, the honeycomb enhanced furnace cover becomes a closed structure as a whole. Fig.15 shown.

[0053] Embodiment 5:

[0054] The difference between this embodiment and embodiment 3 is that the cover plate hollow hole 9 in the middle of the cover plate monomer 1 of the structure of embodiment 3 is set as a closed structure, and when the honeycomb enhanced furnace cover is formed by the cover plate monomer 1, the honeycomb enhanced furnace cover as a whole becomes a closed structure.

[0055] The specific implementation scheme of the honeycomb enhanced furnace cover can be any arrangement and combination of the schemes described in the above embodiments.

[0056] The honeycomb reinforced furnace cover can also be used for other types of furnace bodies, such as tunnel kilns.

[0057] The above is only the preferred embodiment of the utility model, and does not limit the utility model in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the technical solution of the utility model still belongs to the protection scope of the technical solution of the utility model.

Claims

1. A honeycomb reinforced furnace cover, characterized in that: The invention is formed by splicing a plurality of cover plate monomers (1), each of which comprises a working lining (6), a rib plate (2) being protrudingly provided on the surface of the working lining (6), and a groove area being formed on the surface of each working lining (6) by spacing the rib plates (2), the groove area comprising a first groove area (3) and / or a second groove area (7), wherein the first groove area (3) is an independent closed structure formed by being surrounded by the rib plates (2); the second groove area (7) is located at the edge of the cover plate monomer (1), and the second groove areas (7) at the edges of two adjacent cover plate monomers (1) are spliced ​​to form a closed structure.

2. The honeycomb reinforced furnace cover according to claim 1, characterized in that: The working lining (6) is an arc-shaped plate; on the surface of each working lining (6), rib plates (2) are arranged at the edges on both sides of the working lining (6) in the length direction.

3. The honeycomb reinforced furnace cover according to claim 1, characterized in that: A transition portion (5) is arranged at the joint between the bottom of the rib plate (2) and the working lining (6), as well as at the bending portion of the rib plate (2).

4. The honeycomb reinforced furnace cover according to claim 1, characterized in that: The plurality of cover plate monomers (1) are an integrated structure, and the working lining (6) and the rib plate (2) in each cover plate monomer (1) are an integrated structure.

5. The honeycomb reinforced furnace cover according to claim 1, characterized in that: A hollow portion is provided in the cover plate unit (1).

6. The honeycomb reinforced furnace cover according to claim 5, characterized in that: The hollowed-out portion comprises an independent cover plate hollowed-out hole (9) formed on the surface of the cover plate unit (1) and surrounded by the rib plate (2).

7. The honeycomb reinforced furnace cover according to claim 5, characterized in that: The hollow portion comprises a hollow hole formed by splicing the notches at the edges of two adjacent cover plate monomers (1).

8. The honeycomb reinforced furnace cover according to claim 5, characterized in that: The hollowed-out portion comprises a rib plate hollowed-out hole (8) formed on a side wall of the rib plate (2).

9. The honeycomb reinforced furnace cover according to claim 1, characterized in that: The thickness of the working lining (6) is 40 mm to 400 mm.

10. The honeycomb reinforced furnace cover according to claim 1, characterized in that: The thickness of the rib plate (2) is 50 mm to 300 mm, and the height of the rib plate (2) in the vertical direction of the surface of the working lining (6) is 60 mm to 1500 mm.

Images