Mortise and tenon joint structure metal frame on periphery of smelting furnace

Abstract

The utility model discloses a smelting furnace periphery mortise and tenon joint structure metal frame, which relates to the field of metallurgy and is characterized in that a smelting furnace is a square body, a furnace door is arranged at the front end of the square body, a combustion chamber air inlet and a flue are arranged on two sides of the square body, and the smelting furnace periphery metal frame is sleeved on a smelting furnace periphery wall body. The smelting furnace peripheral metal frame is formed by connecting steel beams through a mortise and tenon joint structure, the steel beams are fixed to the smelting furnace peripheral wall through rivets, and the smelting furnace peripheral metal frame has the advantages that the furnace body peripheral metal frame is assembled through the mortise and tenon joint structure, firmness is enhanced, labor cost and construction cost of construction of the furnace body peripheral metal frame are greatly reduced, and the construction period of the furnace body peripheral metal frame is greatly shortened; the furnace body peripheral metal frame constructed by adopting the tenon-and-mortise structure is easy to disassemble and assemble, so that the later period is convenient, and the smelting furnace peripheral metal frame is convenient to disassemble when the smelting furnace body is maintained.

Description

Technical Field

[0001] The utility model relates to the field of metallurgy, in particular to a metal frame with a mortise and tenon structure around a smelting furnace. Background Art

[0002] Traditionally, the outer metal shell of the melting furnace is a metal frame of a steel structure, and the specific steel structure metal frame is actually a metal frame composed of I-beams welded to each other in an interlaced manner, which has sufficient strength on the surface to enhance the strength of the melting furnace body.

[0003] However, since such a steel structure metal frame of a melting furnace is essentially formed by welding I-beams in an interlaced manner, the steel will inevitably be deformed by high temperature during welding, which greatly affects the firmness of the steel structure metal frame; on the other hand, the construction of the outer steel structure metal frame of the melting furnace itself relies on welding technology, which is time-consuming and labor-intensive, has a long construction period, and requires the use of a large amount of welding materials, which increases the production cost of the steel structure metal frame; at the same time, in the actual long-term operation of the melting furnace, when the partial furnace body of the melting furnace needs maintenance, it is necessary to partially replace the outer steel structure metal frame of the furnace body, and it is also very troublesome to dismantle the steel structure metal frame using welding technology.

[0004] Therefore, there is an urgent need for a new type of smelting furnace peripheral steel structure metal frame structure, whose specific steel structure does not adopt welding technology, but can ensure the firmness of the smelting furnace peripheral steel structure metal frame, and is convenient for disassembly of the smelting furnace peripheral steel structure metal frame when maintaining the smelting furnace body. Utility Model Content

[0005] The utility model aims to provide a smelting furnace peripheral mortise and tenon structure metal frame to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A metal frame with a mortise and tenon structure around the periphery of a smelting furnace, wherein the smelting furnace is a square body, a furnace door is arranged on the front side of the square body, and air inlets and flues for combustion chambers are arranged on both sides of the square body, and the metal frame around the smelting furnace is formed by connecting steel beams through mortise and tenon structures, and the steel beams are fixed to the periphery of the furnace body of the smelting furnace through rivets, and the specific mortise and tenon structures include mortise and tenon structures at the intersection of the steel beams arranged in the horizontal direction and the steel beams arranged in the up-down direction on the left and right side surfaces and the front and rear side surfaces of the smelting furnace; and mortise and tenon structures at the intersection of the steel beams arranged in the front-rear direction on the upper and lower end surfaces of the smelting furnace and the steel beams arranged in the left and right directions; and intersections of the two ends of the steel beams arranged in the left and right directions on the upper and lower end surfaces of the smelting furnace and the two ends of the steel beams arranged in the up-down direction on the left and right side surfaces of the smelting furnace, or intersections of the steel beams arranged in the front-rear direction on the left and right side surfaces of the smelting furnace facing the bottom ends of the furnace body periphery walls, or intersections of the mortise and tenon structures at the intersections of the steel beams in the up-down direction and in the front-rear direction on the left and right side surfaces of the smelting furnace facing the side periphery of the furnace body; and the mortise and tenon structures at the intersections of the steel beams in the up-down direction and in the front-rear direction on the left and right side surfaces of the smelting furnace The intersection of the two ends of the steel beams arranged horizontally on the upper front and rear edges of the end surfaces and the two ends of the steel beams arranged in the up-down direction on the front and rear sides of the smelting furnace, or the intersection of the bottom ends of the steel beams arranged in the left-right direction on the front and rear sides of the smelting furnace facing the outer wall of the furnace body, or the mortise and tenon structure at the intersection of the steel beams in the up-down direction and the steel beams in the left-right direction on the front and rear sides of the smelting furnace facing the outer wall of the furnace body; and the intersection of the two ends of the steel beams arranged horizontally on the front and rear edges of the left and right sides of the smelting furnace and the two ends of the steel beams arranged in the left-right direction on the front and rear sides of the smelting furnace, or the bottom ends of the steel beams arranged in the up-down direction on the left and right sides of the smelting furnace facing the outer wall of the furnace body, or the mortise and tenon structure at the intersection of the steel beams in the up-down direction and the steel beams in the left-right direction on the left and right sides of the smelting furnace facing the outer wall of the furnace body; the mortise and tenon structure at the intersection of the lower end of the steel beam arranged in the left-right direction on the wall below the furnace door frame of the front end of the melting furnace and the upper end of the steel beam arranged in the up-down direction.

[0008] The steel beam is essentially an I-beam, and the mortise and tenon structure includes mortise and tenon structure one, mortise and tenon structure two, and mortise and tenon structure three; wherein, on the left and right side surfaces and the front and rear side surfaces of the smelting furnace, the ends of the I-beams arranged in the horizontal direction are intersected and connected with the two sides of the I-beams arranged in the up-down direction through the mortise and tenon structure one, and the ends of the I-beams arranged in the front-to-back direction on the upper and lower end surfaces of the smelting furnace are intersected and connected with the two sides of the I-beams arranged in the left-to-right direction through the mortise and tenon structure one, and the side surfaces of the ends of the I-beams arranged in the left-to-right direction on the upper end surfaces of the smelting furnace are connected with the upper ends of the I-beams arranged in the up-to-down direction on the left and right side surfaces of the smelting furnace through the mortise and tenon structure two, and the side surfaces of the ends of the I-beams arranged in the front-to-back direction on the upper end surfaces of the smelting furnace are connected with the upper ends of the I-beams arranged in the up-to-down direction on the front and rear sides of the smelting furnace through the mortise and tenon structure two; and the upper edge of the lower end surface of the smelting furnace The two ends of the I-beam arranged in the left and right directions are connected to the mortise and tenon structure one at the intersection of the I-beam in the up and down directions and the I-beam in the front and back directions on the left and right sides of the smelting furnace, which faces the side of the outer wall of the furnace body through the mortise and tenon structure three; and the two ends of the I-beam arranged on the front and back of the lower end surface of the smelting furnace are connected to the mortise and tenon structure one at the intersection of the I-beam in the up and down directions and the I-beam in the left and right directions on the front and back sides of the smelting furnace, which faces the side of the outer wall of the furnace body through the mortise and tenon structure three; and the end sides of the two ends of the I-beam 2 arranged on the left and right sides of the smelting furnace along the front and back directions are connected to the end of the I-beam arranged on the left and right sides of the smelting furnace along the water direction through the mortise and tenon structure two; the outer wall of the furnace body is located at the mortise and tenon structure one at the intersection of the lower end of the I-beam arranged on the wall below the furnace door frame at the front end of the melting furnace and the upper end of the I-beam arranged along the up and down directions.

[0009] The mortise and tenon structure is a structure in which an end of an I-beam intersects perpendicularly with the side of another I-beam, wherein grooves provided on the upper and lower sides of the side of one I-beam itself are connected with tongues provided on the upper and lower sides of the end of the other I-beam. The L-shaped fixing bracket itself is composed of an end of a folded edge along the upper and lower directions intersecting with an end of a folded edge along the horizontal direction. The side surfaces of the two vertically intersecting I-beams are perpendicular to each other and are respectively tightly attached to the outer sides of the two folded edges of the L-shaped fixing bracket itself. The two folded edges of the L-shaped fixing bracket are fixed to the side surfaces of the I-beam by a bolt structure.

[0010] The two folded edges of the L-shaped fixing bracket in the mortise and tenon structure are fixed to the side of the I-beam by a bolt structure. The specific bolt structure is that both sides of the end of the I-beam are perpendicularly intersected with the same side of the other I-beam, and the two perpendicular I-beam sides are respectively tightly attached to the outer sides of the two folded edges of the L-fixing bracket itself. A threaded hole is provided on each folded edge of the L-shaped fixing bracket itself, and the position of the threaded hole is aligned with the position of the threaded hole provided on the side of the I-beam with a groove. At the same time, a threaded hole is provided on the other folded edge of the L-shaped fixing bracket itself, and the position of the threaded hole is aligned with the position of the threaded hole provided on the side of the I-beam with a tongue; a bolt passes through the threaded hole on the L-shaped folded edge and the threaded hole on the side of the I-beam with the tongue, and is inserted into the threaded hole on the folded edge of the L-shaped fixing bracket on the other side of the I-beam with the tongue, and is fixed by a nut; a bolt passes through the threaded hole on the L-shaped folded edge and the threaded hole on the side of the I-beam with a groove, and is inserted into the threaded hole on the folded edge of the L-shaped fixing bracket on the other side of the I-beam with the groove, and is fixed by a nut.

[0011] The two folded edges of the L-shaped fixing bracket in the mortise and tenon structure are fixed to the side of the I-beam by a bolt structure. The specific bolt structure is that both sides of the end of the I-beam are perpendicularly intersected with the same side of the other I-beam, and the two perpendicular I-beam sides are respectively tightly attached to the outer sides of the two folded edges of the L-fixing bracket itself. A threaded hole is provided on each folded edge of the L-shaped fixing bracket itself, and the position of the threaded hole is aligned with the position of the threaded hole provided on the side of the I-beam with a groove. At the same time, a threaded hole is provided on the other folded edge of the L-shaped fixing bracket itself, and the position of the threaded hole is aligned with the position of the threaded hole provided on the side of the I-beam with a tongue; a bolt passes through the threaded hole on the L-shaped folded edge and the threaded hole on the side of the I-beam with a tongue, and is inserted into the threaded hole on the folded edge of the L-shaped fixing bracket on the other side of the I-beam with a tongue, and is fixed by a nut; a bolt is inserted into the threaded hole on the L-shaped folded edge and the threaded hole on the side of the I-beam with a groove, and then extends out from the threaded hole on the other side of the I-beam with the groove and is fixed by a nut.

[0012] The groove and tongue in the mortise and tenon structure are of the same shape, the size of the groove is 0.5-1mm larger than the size of the tongue, and the shape of the groove and the tongue can be semicircular, square or equilateral trapezoidal; each folded edge of the L-shaped fixing bracket itself is provided with one or more threaded holes, and each threaded hole is aligned with the threaded hole provided on the side, upper end face or lower end face of the I-beam.

[0013] The second mortise and tenon structure is an I-beam end intersecting perpendicularly with the side of another I-beam end, and a tongue provided in the middle of the I-beam end extends into a groove provided on the side of the other I-beam; at the same time, the side surfaces of the two I-beam ends are also perpendicular to each other, and the L-shaped fixing bracket itself is composed of the lower end of the folded edge along the up and down directions and the intersection of the folded edge end along the horizontal direction, and the two folded edges of the L-shaped fixing bracket itself are respectively tightly attached to the side of one I-beam end and the side of the other I-beam end and are fixed by a bolt structure.

[0014] The mortise and tenon structure three includes a structure where the lower end of the I-beam arranged on the left and right sides of the smelting furnace in the up-down direction, and the mortise and tenon structure two or the upper end of the mortise and tenon structure one intersects with the I-beam arranged on the edge of the bottom end face of the smelting furnace in the left-right direction and the I-beam arranged on the front-back direction of the bottom end of the smelting furnace, or a structure where the lower end of the I-beam arranged on the front and back sides of the smelting furnace in the up-down direction, and the mortise and tenon structure two or the upper end of the mortise and tenon structure one intersects with the I-beam arranged on the edge of the bottom end face of the smelting furnace in the front-back direction and the I-beam arranged on the left-right direction of the bottom end of the smelting furnace; wherein, the left and right sides of the smelting furnace A protruding block is provided on the lower end surface of the I-beam arranged in the up-down direction on both side surfaces, away from the outer wall of the furnace body, and the lower end of the protruding block is inserted into the upper end opening of the I-beam arranged in the left-right direction on the edge of the bottom end surface of the smelting furnace in the mortise and tenon structure 2 or the mortise and tenon structure 1, and is fixed by a bolt structure; a protruding block is provided on the lower end surface of the I-beam arranged in the up-down direction on the front and rear side surfaces of the smelting furnace, away from the outer wall of the furnace body, and the lower end of the protruding block is inserted into the upper end opening of the I-beam arranged in the front-to-back direction on the edge of the bottom end surface of the smelting furnace in the mortise and tenon structure 2 or the mortise and tenon structure 1, and is fixed by a bolt structure.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] In the utility model, a smelting furnace peripheral mortise and tenon structure metal frame is provided, wherein the specific metal frame structure adopts the mortise and tenon structure, and bolts and screws are used for anchoring in the specific structure to ensure firmness, thereby avoiding deformation of the furnace body peripheral metal frame caused by using a traditional welding process; at the same time, since the furnace body peripheral metal frame is assembled by adopting the mortise and tenon structure, the labor cost, construction cost and construction period of the furnace body peripheral metal frame are greatly reduced; at the same time, since the furnace body peripheral metal frame constructed by adopting the mortise and tenon structure is easy to disassemble and assemble, it is convenient to disassemble the smelting furnace peripheral metal frame when maintaining the smelting furnace body at a later time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the metal frame structure of the upper and lower ends of the mortise and tenon structure metal frame of the outer periphery of a smelting furnace of the utility model;

[0018] Figure 2 It is a schematic diagram of the structure of the left and right side metal frames of the mortise and tenon structure metal frame of the outer periphery of a smelting furnace of the utility model;

[0019] Figure 3 It is a structural schematic diagram of a mortise and tenon structure 1 in a metal frame of a mortise and tenon structure of the periphery of a smelting furnace according to the utility model;

[0020] Figure 4It is a structural schematic diagram of the second mortise and tenon structure in the metal frame of the mortise and tenon structure of the outer periphery of a smelting furnace according to the utility model;

[0021] Figure 5 It is a structural schematic diagram of the mortise and tenon structure three in the mortise and tenon structure metal frame of the outer periphery of a smelting furnace according to the utility model;

[0022] In the figure: 1 mortise and tenon structure three; 2 I-beams arranged along the front-to-back direction; 3 I-beams arranged along the left-right direction; 4 mortise and tenon structure one; 5 I-beams arranged along the up-down direction; 6 combustion chamber air inlet and flue; 7 mortise and tenon structure two; 8 tongue; 9 groove; 10 raised block; 11 opening. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model; In the description of the utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "up and down", "top", "bottom", "inside", "outside", "left and right", "front and back", "bottom end" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the utility model.

[0024] Please refer to the legend. In the embodiment of the utility model, a mortise and tenon structure metal frame of the outer periphery of a smelting furnace is provided. The smelting furnace is a square body. A furnace door is provided on the front side of the square body. The air inlet and flue 6 of the combustion chamber are provided on both sides of the square body. The outer periphery metal frame of the smelting furnace is formed by connecting steel beams through mortise and tenon structures. The steel beams are fixed to the outer periphery wall of the smelting furnace body by rivets. The steel beams are essentially I-beams. The mortise and tenon structure includes a mortise and tenon structure 1 4, a mortise and tenon structure 2 7, and a mortise and tenon structure 3 1. In which, on the left and right sides and the front and rear sides of the smelting furnace, along the horizontal direction The ends of the I-beams arranged at the upper and lower ends of the smelting furnace are intersected and connected with the two sides of the I-beams 5 arranged along the up-down direction through a mortise and tenon structure 1, and the ends of the I-beams 2 arranged on the upper and lower end surfaces of the smelting furnace along the front-back direction are intersected and connected with the two sides of the I-beams 3 arranged along the left-right direction through a mortise and tenon structure 1, and the side surfaces of the ends of the I-beams 3 arranged on the upper and lower end surfaces of the smelting furnace along the left-right direction are connected with the upper ends of the I-beams 5 arranged on the left-right side surfaces of the smelting furnace along the up-down direction through a mortise and tenon structure 2 7, and the ends of the I-beams 2 arranged on the upper and lower end surfaces of the smelting furnace along the front-back direction are connected with the upper ends of the I-beams 5 arranged on the left-right side surfaces of the smelting furnace along the up-down direction through a mortise and tenon structure 2 The end sides of the I-beam 2 are connected to the upper ends of the I-beams 5 arranged on the front and rear sides of the smelting furnace in the up-down direction through a mortise and tenon structure 2; and the ends of the I-beam 3 arranged on the left and right sides of the lower end surface of the smelting furnace are connected to the mortise and tenon structure 1 4 at the intersection of the I-beams on the left and right sides of the smelting furnace and the I-beams along the front and rear directions, which face the outer wall of the furnace body; and the ends of the I-beam 2 arranged on the front and rear sides of the upper end surface of the lower end surface of the smelting furnace are connected to the mortise and tenon structure 1 1 at the intersection of the I-beams on the left and right sides of the smelting furnace and the I-beams along the front and rear directions. The mortise and tenon structure 1 at the intersection of the I-beam and the I-beam along the left and right directions faces the intersection of one side of the outer wall of the furnace body and is connected by the mortise and tenon structure 3 1; and the side surfaces of the ends of the I-beam 2 arranged on the left and right sides of the melting furnace along the front and back directions are connected to the ends of the I-beam 3 arranged on the front and back sides of the melting furnace along the left and right water directions through the mortise and tenon structure 2 1; the outer wall of the furnace body is located at the intersection of the lower end of the I-beam 3 arranged on the wall below the furnace door frame at the front end of the melting furnace along the left and right directions and the upper end of the I-beam 5 arranged along the up and down directions.

[0025] The mortise and tenon structure 4 is a vertical intersection between an end of an I-beam and the side of another I-beam, wherein grooves 9 provided on the upper and lower sides of the side of one I-beam itself are connected with tongues 8 provided on the upper and lower sides of the end of the other I-beam. The L-shaped fixing bracket itself is composed of the intersection of the lower end of the folded edge along the up and down directions and the end of the folded edge along the horizontal direction. The two vertically intersecting I-beam side surfaces are perpendicular to each other and are respectively tightly attached to the outer sides of the two folded edges of the L-shaped fixing bracket itself. The two folded edges of the L-shaped fixing bracket are fixed to the side of the I-beam by a bolt structure.

[0026] The two folded edges of the L-shaped fixing bracket in the mortise and tenon structure 14 are fixed to the side of the I-beam by a bolt structure. The specific bolt structure is that both sides of the end of the I-beam are perpendicularly intersected with the same side of the other I-beam, and the two perpendicular I-beam sides are respectively tightly attached to the outer sides of the two folded edges of the L-shaped fixing bracket itself. A threaded hole is provided on each folded edge of the L-shaped fixing bracket itself, and the position of the threaded hole is aligned with the position of the threaded hole provided on the side of the I-beam with a groove 9. At the same time, a threaded hole is provided on the other folded edge of the L-shaped fixing bracket itself, and the position of the threaded hole is aligned with the position of the threaded hole provided on the side of the I-beam with a tongue 8; a bolt passes through the threaded hole on the L-shaped folded edge and the threaded hole on the side of the I-beam with the tongue 8, and is inserted into the threaded hole on the folded edge of the L-shaped fixing bracket on the other side of the I-beam with the tongue 8, and is fixed by a nut; a bolt passes through the threaded hole on the L-shaped folded edge and the threaded hole on the side of the I-beam with the groove 9, and is inserted into the threaded hole on the folded edge of the L-shaped fixing bracket on the other side of the I-beam with the groove 9, and is fixed by a nut.

[0027] The two folded edges of the L-shaped fixing bracket in the mortise and tenon structure 4 are fixed to the side of the I-beam by a bolt structure. The specific bolt structure is that both sides of the end of the I-beam are perpendicularly intersected with the same side of the other I-beam, and the two perpendicular I-beam sides are respectively tightly attached to the outer sides of the two folded edges of the L-shaped fixing bracket itself. A threaded hole is provided on each folded edge of the L-shaped fixing bracket itself, and the position of the threaded hole is aligned with the position of the threaded hole provided on the side of the I-beam with a groove 9. At the same time, a threaded hole is provided on the other folded edge of the L-shaped fixing bracket itself, and the position of the threaded hole is aligned with the position of the threaded hole provided on the side of the I-beam with a tongue 8; a bolt passes through the threaded hole on the L-shaped folded edge and the threaded hole on the side of the I-beam with the tongue 8, and is inserted into the threaded hole on the folded edge of the L-shaped fixing bracket on the other side of the I-beam with the tongue 8, and is fixed by a nut; a bolt is inserted into the threaded hole on the L-shaped folded edge and the threaded hole on the side of the I-beam with the groove 9, and then extends out from the threaded hole on the other side of the I-beam with the groove 9 and is fixed by a nut.

[0028] The groove 9 and the tongue 8 in the mortise and tenon structure 4 have the same shape, the size of the groove 9 is 0.05-0.01mm larger than the size of the tongue 8, and the shapes of the groove 9 and the tongue 8 can be semicircular, square, or trapezoidal; each folded edge of the L-shaped fixing bracket itself is provided with one or more threaded holes, and each threaded hole is aligned with the threaded hole provided on the side, upper end face, or lower end face of the I-beam.

[0029] The mortise and tenon structure 2 7 is an I-beam end intersecting perpendicularly with the side of another I-beam end, and a tongue 8 provided in the middle of the I-beam end extends into a groove 9 provided on the side of the other I-beam; at the same time, the sides of the two I-beam ends are also perpendicular to each other, and the L-shaped fixing bracket itself is composed of the lower end of the folded edge along the up and down directions and the intersection of the folded edge end along the horizontal direction. The two folded edges of the L-shaped fixing bracket itself are respectively tightly attached to the side of one I-beam end and the side of the other I-beam end and are fixed by a bolt structure.

[0030] The mortise and tenon structure three 1 includes a structure where the lower end of the I-beam 5 arranged on the upper and lower sides of the left and right sides of the smelting furnace intersects with the mortise and tenon structure two 7 or the upper end of the mortise and tenon structure one 4 at the intersection of the I-beam 3 arranged on the upper edge of the end face of the bottom end of the smelting furnace in the left and right direction and the I-beam 2 arranged on the upper edge of the front and rear direction of the bottom end of the smelting furnace, or a structure where the lower end of the I-beam 5 arranged on the upper and lower sides of the front and rear sides of the smelting furnace intersects with the I-beam 2 arranged on the upper edge of the end face of the bottom end of the smelting furnace in the front and rear direction and the I-beam 3 arranged on the upper edge of the left and right sides of the smelting furnace at the intersection of the mortise and tenon structure two 7; wherein, the upper and lower edges of the left and right sides of the smelting furnace A protruding block 10 is provided on the lower end face of the I-beam 5 arranged in the direction away from the outer wall of the furnace body, and the lower end of the protruding block 10 is inserted into the upper end opening 11 of the I-beam 3 arranged in the left and right direction on the edge of the bottom end face of the smelting furnace in the mortise and tenon structure 27 or the mortise and tenon structure 14, and is fixed by a bolt structure; a protruding block 10 is provided on the lower end face of the I-beam 5 arranged in the up and down direction on the side faces of the front and rear sides of the smelting furnace away from the outer wall of the furnace body, and the lower end of the protruding block 10 is inserted into the upper end opening 11 of the I-beam 2 arranged in the front and back direction on the edge of the bottom end face of the smelting furnace in the mortise and tenon structure 27 or the mortise and tenon structure 14, and is fixed by a bolt structure.

[0031] The working principle of the utility model is:

[0032] The mortise and tenon structure refers to a connection method that bites two or more pieces of wood together to form an overall structure. The mortise and tenon structure of steel is achieved by cutting and processing the ends of two steel pieces so that they can bite and hold each other, thereby achieving the purpose of structural connection. Compared with traditional welding methods, the mortise and tenon structure has better earthquake resistance and stability, and is therefore favored in some important engineering applications.

[0033] Specifically speaking, the advantages of the mortise and tenon structure are:

[0034] 1. Strong earthquake resistance. The mortise and tenon structure has a tight connection, which can firmly fix the various parts of the structure together and enhance the overall earthquake resistance.

[0035] 2. Environmentally friendly construction. During the construction of mortise and tenon structures, no welding connection process is required, which can reduce pollution and energy waste.

[0036] 3. Low maintenance cost. The mortise and tenon structure requires less materials and has low maintenance and replacement costs.

[0037] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A metal frame with a mortise and tenon structure around a smelting furnace, wherein the smelting furnace is a square, a furnace door is provided on the front side of the square, and a combustion chamber air inlet and a flue are provided on both sides of the square, characterized in that: The outer metal frame of the smelting furnace is formed by connecting steel beams through mortise and tenon structures, and the steel beams are fixed to the outer wall of the smelting furnace body by rivets. The specific mortise and tenon structures include the mortise and tenon structures at the intersection of the steel beams arranged in the horizontal direction and the steel beams arranged in the up-down direction on the left and right side surfaces and the front and rear side surfaces of the smelting furnace; and the mortise and tenon structures at the intersection of the steel beams arranged in the front and rear directions on the upper and lower end surfaces of the smelting furnace and the steel beams arranged in the left and right directions; and the intersection of the two ends of the steel beams arranged in the left and right directions on the upper and lower end surfaces of the smelting furnace and the two ends of the steel beams arranged in the up-down direction on the left and right side surfaces of the smelting furnace, or the intersection of the steel beams arranged in the front and rear directions on the left and right side surfaces of the smelting furnace facing the bottom end of the outer wall of the furnace body, or the mortise and tenon structures at the intersection of the steel beams in the up-down direction and the front-rear direction on the left and right side surfaces of the smelting furnace facing the side of the outer wall of the furnace body; and the two ends of the steel beams arranged horizontally on the upper front and rear of the upper end surfaces of the upper and lower ends of the smelting furnace and the front and rear side surfaces of the smelting furnace The intersection of the two ends of the steel beams arranged in the up-down direction on the surface, or the intersection of the bottom ends of the steel beams arranged in the left-right direction on the front and rear sides of the smelting furnace facing the outer wall of the furnace body, or the mortise and tenon structure at the intersection of the steel beams in the up-down direction and the steel beams in the left-right direction on the front and rear sides of the smelting furnace itself facing the outer wall of the furnace body; and the intersection of the two ends of the steel beams arranged horizontally on the front and back sides of the left and right sides of the smelting furnace and the two ends of the steel beams arranged in the left-right direction on the front and back sides of the smelting furnace, or the intersection of the bottom ends of the steel beams arranged in the up-down direction on the left and right sides of the smelting furnace itself facing the outer wall of the furnace body, or the mortise and tenon structure at the intersection of the steel beams in the up-down direction and the steel beams in the left-right direction on the left and right sides of the smelting furnace itself facing the outer wall of the furnace body; the mortise and tenon structure at the intersection of the lower end of the steel beam arranged in the left-right direction on the wall below the furnace door frame of the front end of the melting furnace and the upper end of the steel beam arranged in the up-down direction.

2. According to claim 1, a smelting furnace peripheral mortise and tenon structure metal frame is characterized in that: The steel beam is specifically an I-beam, and the mortise and tenon structure includes a mortise and tenon structure one, a mortise and tenon structure two, and a mortise and tenon structure three; wherein, on the left and right side surfaces and the front and rear side surfaces of the smelting furnace, the ends of the I-beams arranged in the horizontal direction are intersected and connected with the two sides of the I-beams arranged in the up-down direction through the mortise and tenon structure one, and the ends of the I-beams arranged in the front-to-back direction on the upper and lower end surfaces of the smelting furnace are intersected and connected with the two sides of the I-beams arranged in the left-to-right direction through the mortise and tenon structure one, and the side surfaces of the ends of the I-beams arranged in the left-to-right direction on the upper end surfaces of the smelting furnace are connected with the upper ends of the I-beams arranged in the up-to-down direction on the left and right side surfaces of the smelting furnace through the mortise and tenon structure two, and the side surfaces of the ends of the I-beams arranged in the front-to-back direction on the upper end surfaces of the smelting furnace are connected with the upper ends of the I-beams arranged in the up-to-down direction on the front and rear sides of the smelting furnace through the mortise and tenon structure two; and the left upper side of the lower end surface of the smelting furnace The two ends of the I-beam arranged in the right direction are connected to the mortise and tenon structure one at the intersection of the I-beam in the up-down direction and the I-beam in the front-back direction on the left and right sides of the smelting furnace, which faces the side of the outer wall of the furnace body through the mortise and tenon structure three; and the two ends of the I-beam arranged on the front and back of the lower end surface of the smelting furnace are connected to the mortise and tenon structure one at the intersection of the I-beam in the up-down direction and the I-beam in the left-right direction on the front and back sides of the smelting furnace, which faces the side of the outer wall of the furnace body through the mortise and tenon structure three; and the end sides of the two ends of the I-beam 2 arranged on the left and right sides of the smelting furnace along the front and back directions are connected to the ends of the I-beams arranged on the left and right sides of the smelting furnace through the mortise and tenon structure two; the outer wall of the furnace body is located at the mortise and tenon structure one at the intersection of the lower end of the I-beam arranged on the wall below the furnace door frame at the front end of the melting furnace and the upper end of the I-beam arranged along the up-down direction.

3. According to claim 2, a smelting furnace peripheral mortise and tenon structure metal frame is characterized in that: The first mortise and tenon structure is that one end of an I-beam intersects perpendicularly with the side of another I-beam, wherein grooves provided on the upper and lower sides of the side of one I-beam itself are connected with tongues provided on the upper and lower sides of the end of the other I-beam. The L-shaped fixing bracket itself is composed of the intersection of the lower end of the folded edge along the up and down directions and the end of the folded edge along the horizontal direction. The side surfaces of the two vertically intersecting I-beams are perpendicular to each other and are respectively tightly attached to the outer sides of the two folded edges of the L-shaped fixing bracket itself. The two folded edges of the L-shaped fixing bracket are fixed to the side surfaces of the I-beam by a bolt structure.

4. According to claim 3, a smelting furnace peripheral mortise and tenon structure metal frame is characterized in that: The two folded edges of the L-shaped fixing bracket in the mortise and tenon structure 1 are fixed to the side of the I-beam by a bolt structure. The specific bolt structure is that both sides of the end of the I-beam are perpendicularly intersected with the same side of the other I-beam, and the two perpendicular I-beam sides are respectively tightly attached to the outer sides of the two folded edges of the L-shaped fixing bracket itself. One or more threaded holes are provided on each folded edge of the L-shaped fixing bracket itself, and the position of the threaded hole is aligned with the position of the threaded hole provided on the side of the I-beam with a groove. At the same time, a threaded hole is provided on the other folded edge of the L-shaped fixing bracket itself, and the position of the threaded hole is aligned with the position of the threaded hole provided on the side of the I-beam with a tongue; a bolt passes through the threaded hole on the L-shaped folded edge and the threaded hole on the side of the I-beam with a tongue, and is inserted into the threaded hole on the folded edge of the L-shaped fixing bracket on the other side of the I-beam with a tongue, and is fixed by a nut; a bolt passes through the threaded hole on the L-shaped folded edge and the threaded hole on the side of the I-beam with a groove, and is inserted into the threaded hole on the folded edge of the L-shaped fixing bracket on the other side of the I-beam with a groove, and is fixed by a nut.

5. According to claim 3, a smelting furnace outer mortise and tenon structure metal frame is characterized in that: The two folded edges of the L-shaped fixing bracket in the mortise and tenon structure 1 are fixed to the side of the I-beam by a bolt structure. The specific bolt structure is that both sides of the end of the I-beam are perpendicularly intersected with the same side of the other I-beam, and the two perpendicular I-beam sides are respectively tightly attached to the outer sides of the two folded edges of the L-shaped fixing bracket itself. One or more threaded holes are provided on each folded edge of the L-shaped fixing bracket itself, and the position of the threaded hole is aligned with the position of the threaded hole provided on the side of the I-beam with a groove. At the same time, a threaded hole is provided on the other folded edge of the L-shaped fixing bracket itself, and the position of the threaded hole is aligned with the position of the threaded hole provided on the side of the I-beam with a tongue; a bolt passes through the threaded hole on the L-shaped folded edge and the threaded hole on the side of the I-beam with a tongue, and is inserted into the threaded hole on the folded edge of the L-shaped fixing bracket on the other side of the I-beam with a tongue, and is fixed by a nut; a bolt is inserted into the threaded hole on the L-shaped folded edge and the threaded hole on the side of the I-beam with a groove, and then extends out from the threaded hole on the other side of the I-beam with a groove and is fixed by a nut.

6. According to claim 3, a smelting furnace peripheral mortise and tenon structure metal frame is characterized in that: The groove and tongue in the mortise and tenon structure are of the same shape, the groove size is 0.5-1mm larger than the tongue size, and the groove and tongue shape can be semicircular, square or equilateral trapezoidal; each folded edge of the L-shaped fixing bracket itself is provided with one or more threaded holes, and each threaded hole is aligned with the threaded hole provided on the side, upper end face or lower end face of the I-beam.

7. According to claim 2, a smelting furnace peripheral mortise and tenon structure metal frame is characterized in that: The second mortise and tenon structure is that one end of an I-beam intersects perpendicularly with the side of another end of an I-beam, and a tongue provided in the middle of the end of the I-beam extends into a groove provided on the side of the other I-beam; at the same time, the sides of the two I-beam ends are also perpendicular to each other, and the L-shaped fixing bracket itself is composed of the lower end of the folded edge along the up and down directions and the intersection of the folded edge end along the horizontal direction. The two folded edges of the L-shaped fixing bracket itself are respectively tightly attached to the side of one I-beam end and the side of the other I-beam end and are fixed by a bolt structure.

8. According to claim 1, a smelting furnace peripheral mortise and tenon structure metal frame is characterized in that: The mortise and tenon structure three includes a structure where the lower end of the I-beam arranged on the left and right sides of the smelting furnace in the up-down direction, and the mortise and tenon structure two or the upper end of the mortise and tenon structure one intersects with the I-beam arranged on the edge of the bottom end face of the smelting furnace in the left-right direction and the I-beam arranged on the front-back direction of the bottom end of the smelting furnace, or a structure where the lower end of the I-beam arranged on the front and back sides of the smelting furnace in the up-down direction, and the mortise and tenon structure two or the upper end of the mortise and tenon structure one intersects with the I-beam arranged on the edge of the bottom end face of the smelting furnace in the front-back direction and the I-beam arranged on the left-right direction of the bottom end of the smelting furnace; wherein, the left and right sides of the smelting furnace A protruding block is provided on the lower end surface of the I-beam arranged in the up-down direction on both side surfaces, away from the outer wall of the furnace body, and the lower end of the protruding block is inserted into the upper end opening of the I-beam arranged in the left-right direction on the edge of the bottom end surface of the smelting furnace in the mortise and tenon structure 2 or the mortise and tenon structure 1, and is fixed by a bolt structure; a protruding block is provided on the lower end surface of the I-beam arranged in the up-down direction on the front and rear side surfaces of the smelting furnace, away from the outer wall of the furnace body, and the lower end of the protruding block is inserted into the upper end opening of the I-beam arranged in the front-to-back direction on the edge of the bottom end surface of the smelting furnace in the mortise and tenon structure 2 or the mortise and tenon structure 1, and is fixed by a bolt structure.

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