Straight furnace wall elastic framework and flash furnace

Abstract

The utility model discloses a straight furnace wall elastic framework and a flash furnace. The straight furnace wall elastic framework comprises a plurality of frame assemblies and a traction assembly, the frame assemblies are arranged in the circumferential direction of the furnace body, and the frame assemblies abut against the outer wall face of the furnace body; the two oppositely-arranged frame assemblies are connected through a traction assembly so as to clamp the furnace body. The traction assembly is provided with an elastic piece, the compression amount of the elastic piece is adjusted so as to adjust the clamping force of the two oppositely-arranged frame assemblies to the furnace body, and the elastic piece can stretch out and draw back along with expansion and contraction of the furnace body. According to the straight furnace wall elastic framework, the clamping force on the side wall of the furnace body can be guaranteed, the stability of the elastic framework is improved, and uniform expansion of the furnace body is maintained.

Description

Technical Field

[0001] The utility model belongs to the technical field of metal smelting, and particularly relates to an elastic framework for a direct furnace wall and a flash furnace. Background Art

[0002] Flash furnaces are mainly used for smelting metal sulfide ores such as copper and nickel and for blowing copper matte particles. With the continuous optimization and improvement of flash furnaces, the single-unit production capacity has increased from several ten thousand tons initially to 400,000 - 500,000 tons currently. With the increase in production capacity, flash furnaces are also developing towards larger scales, posing higher requirements for the overall structure of flash furnaces. Content of the Utility Model

[0003] The utility model is made based on the inventor's discovery and recognition of the following facts and problems:

[0004] The inventor realizes that the outer support structure of the direct furnace wall flash furnace in the related art bears both weight and tensile force, and the stress situation is relatively complex. The structural members themselves are prone to deformation and cannot ensure the uniformity of furnace body expansion. Especially after the furnace body has been in operation for some time and undergoes a major overhaul, when starting the furnace again, it is easy to cause one side of the furnace body to expand more and the other side to expand less, which will seriously affect the overall safety of the furnace body.

[0005] The utility model aims to solve at least one of the technical problems in the related art to a certain extent.

[0006] For this reason, an embodiment of the utility model proposes an elastic framework for a direct furnace wall that can improve the overall safety performance of the furnace body.

[0007] An embodiment of the utility model also proposes a flash furnace.

[0008] The elastic framework for a direct furnace wall in the embodiment of the utility model includes:

[0009] A framework assembly, the number of the framework assemblies is multiple, the multiple framework assemblies are arranged along the circumferential direction of the furnace body, and the framework assemblies are in contact with the outer wall surface of the furnace body;

[0010] A pulling assembly, two relatively arranged framework assemblies are connected by the pulling assembly to clamp the furnace body;

[0011] The pulling assembly has an elastic member, the compression amount of the elastic member is adjusted to adjust the clamping force of two relatively arranged framework assemblies on the furnace body, and the elastic member can expand and contract as the furnace body expands and contracts.

[0012] The elastic framework for a direct furnace wall in the embodiment of the utility model can ensure the clamping force on the side wall of the furnace body, improve the stability of the elastic framework, and maintain the uniform expansion of the furnace body.

[0013] In some embodiments, the frame assembly includes a frame body, an upper beam body, and a lower beam body. The upper beam body and the lower beam body extend in the horizontal direction, and the upper beam body and the lower beam body are arranged at intervals in the vertical direction. The upper beam body and the lower beam body abut against one side of the frame body away from the furnace body;

[0014] A plurality of the pulling assemblies are provided between two relatively arranged frame assemblies. Some of the pulling assemblies are connected between the two upper beam bodies on opposite sides of the furnace body, and the other pulling assemblies are connected between the two lower beam bodies on opposite sides of the furnace body.

[0015] In some embodiments, the frame body includes:

[0016] A plurality of columns, the columns extend in the vertical direction, and the plurality of columns are arranged at intervals and in parallel in the horizontal direction;

[0017] A plurality of ring beams, the ring beams extend in the horizontal direction, and the plurality of ring beams are arranged at intervals and in parallel in the vertical direction. Adjacent columns are connected by the ring beams, the ring beams abut against the side wall surface of the furnace body, and the columns are located on one side of the ring beams away from the furnace body.

[0018] In some embodiments, a support is provided on one side of the column close to the furnace body, and the ring beam is connected to the support;

[0019] And / or, there are four frame assemblies, two of which are relatively arranged along the length direction of the furnace body, and the other two frame assemblies are relatively arranged along the width direction of the furnace body;

[0020] And / or, the elastic member is a conical scroll spring.

[0021] In some embodiments, the pulling assembly includes a pull rod member and a fastener. The pull rod member is connected between two relatively arranged frame assemblies, and the end of the pull rod member is located on one side of the corresponding frame assembly away from the furnace body. The fastener and the elastic member are connected to the end of the pull rod member. One end of the elastic member abuts against the fastener, and the other end abuts against the frame assembly.

[0022] In some embodiments, the pull rod member in at least part of the pulling assemblies is an integral rod; and / or

[0023] The pull rod member in at least part of the pulling assemblies includes a pull beam and a first rod. One or more first rods are connected to both ends of the pull beam in the length direction, and the elastic member and the fastener are provided on each first rod.

[0024] In some embodiments, it further includes a bottom beam, the bottom beam abuts against the bottom of the furnace body, the number of the bottom beams is multiple, and the multiple bottom beams are arranged in parallel and at intervals along the length direction of the furnace body.

[0025] The flash furnace according to the embodiment of the present utility model includes a furnace body and the straight furnace wall elastic skeleton as described in any one of the above embodiments, and the straight furnace wall elastic skeleton abuts against the outside of the furnace body.

[0026] In some embodiments, the furnace body includes a sedimentation tank, a reaction tower and a rising flue. The sedimentation tank has a furnace shell, a water jacket and a lining arranged in sequence from outside to inside;

[0027] The straight furnace wall elastic skeleton abuts against the outside of the furnace shell of the sedimentation tank.

[0028] In some embodiments, the flash furnace is a flash smelting furnace. The diameter of the reaction tower of the flash smelting furnace is greater than or equal to 7.2 m, and the height is greater than or equal to 9.3 m. The length of the sedimentation tank of the flash smelting furnace is greater than or equal to 26.35 m, and the width is greater than or equal to 10 m. The length of the outlet of the rising flue of the flash smelting furnace is greater than or equal to 5 m, and the width is greater than or equal to 3.5 m;

[0029] Or, the flash furnace is a flash converting furnace. The diameter of the reaction tower of the flash converting furnace is greater than or equal to 5.2 m, and the height is greater than or equal to 7.87 m. The length of the sedimentation tank of the flash converting furnace is greater than or equal to 23 m, and the width is greater than or equal to 8 m. The length of the outlet of the rising flue of the flash converting furnace is greater than or equal to 3.5 m, and the width is greater than or equal to 3 m;

[0030] Or, the width of the water jacket is 500 mm to 800 mm, and the overlapping width between two adjacent water jackets is 20 mm to 60 mm;

[0031] Or, a plurality of viewing windows are provided on the furnace shell, and the viewing windows correspond to the overlapping parts of two adjacent water jackets;

[0032] Or, it further includes a connecting rod assembly. The connecting rod assembly is connected between the straight furnace wall elastic skeleton and the water jacket at the top of the sedimentation tank. The connecting rod assembly extends in the vertical direction, and the length of the connecting rod assembly is adjustable so that the direction of the acting force of the connecting rod assembly on the water jacket is vertically upward or the direction of the acting force of the connecting rod assembly on the water jacket is vertically downward. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 is a front view structural schematic diagram of the straight furnace wall elastic skeleton according to the embodiment of the present utility model.

[0034] Figure 2 is a top view structural schematic diagram of the straight furnace wall elastic skeleton according to the embodiment of the present utility model.

[0035] Figure 3 It is a schematic side view structure of the straight furnace wall elastic skeleton of the embodiment of the present utility model.

[0036] Figure 4 It is Figure 3 An enlarged structure schematic diagram of part A in

[0037] Figure 5 It is a force curve graph of the elastic member of the embodiment of the present utility model.

[0038] Figure 6 It is a schematic layout structure diagram of the water jacket and the viewing window in the furnace body of the embodiment of the present utility model.

[0039] Figure 7 It is Figure 6 A schematic top view structure diagram of

[0040] Figure 8 It is Figure 6 A schematic side view structure diagram of

[0041] Figure 9 It is a schematic layout structure diagram of the connecting rod assembly of the embodiment of the present utility model.

[0042] Figure 10 It is a schematic structure diagram of the flash smelting furnace of the embodiment of the present utility model.

[0043] Figure 11 It is Figure 10 A schematic structure diagram in the B-B direction in

[0044] Figure 12 It is a schematic structure diagram of the flash converting furnace of the embodiment of the present utility model.

[0045] Figure 13 It is Figure 12 A schematic structure diagram in the C-C direction in

[0046] Reference numerals:

[0047] 100, straight furnace wall elastic skeleton; 200, flash furnace;

[0048] 1, frame assembly; 11, frame body; 111, column; 112, ring beam; 113, support; 12, upper beam body; 13, lower beam body;

[0049] 2, pulling assembly; 21, pull rod component; 211, pull beam; 212, first rod; 22, elastic member; 23, fastener;

[0050] 3, furnace body; 31, sedimentation tank; 311, furnace shell; 312, water jacket; 313, inner lining; 32, reaction tower; 33, rising flue;

[0051] 4. Window

[0052] 5. Connecting rod assembly

[0053] 6. Bottom beam Specific implementation manner

[0054] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present utility model, and should not be construed as a limitation to the present utility model.

[0055] The following will be combined with Figures 1 - 13 to describe in detail the structure of the straight furnace wall elastic skeleton and the flash furnace in the embodiments of the present utility model.

[0056] As Figures 1 to 3 shown, the straight furnace wall elastic skeleton 100 of the embodiment of the present utility model includes a frame assembly 1 and a pulling assembly 2. The number of the frame assemblies 1 is multiple, and the multiple frame assemblies 1 are arranged along the circumferential direction of the furnace body 3, and the frame assemblies 1 are in contact with the outer wall surface of the furnace body 3; two relatively arranged frame assemblies 1 are connected by the pulling assembly 2 to clamp the furnace body 3; the pulling assembly 2 has an elastic member 22, and the compression amount of the elastic member 22 is adjusted to adjust the clamping force of the two relatively arranged frame assemblies 1 on the furnace body 3, and the elastic member 22 can be telescopic as the furnace body 3 expands and contracts.

[0057] It should be understood that the cross-section of the furnace body 3 is generally approximately rectangular. The furnace body 3 has multiple pairs of relatively arranged outer wall surfaces. A frame assembly 1 is arranged on each outer wall surface. Two frame assemblies 1 relatively arranged on both sides of the furnace body 3 are a group, and the frame assemblies 1 are in pairs. For example, when the cross-section of the furnace body 3 is approximately rectangular, the number of the frame assemblies 1 is four and is divided into two groups.

[0058] The pulling assembly 2 is arranged between two relatively arranged frame assemblies 1. The pulling assembly 2 can provide a pulling force between the two frame assemblies 1, so that the two frame assemblies 1 clamp the furnace body 3. At the same time, the pulling assembly 2 has an elastic member 22. By adjusting the compression amount of the elastic member 22, the clamping force of the two frame assemblies 1 on the furnace body 3 can be adjusted. Then, during the operation of the furnace body 3, the compression amount of the elastic member 22 can be adjusted by detecting the pulling force of the pulling assembly 2, the expansion condition of the furnace body 3, etc., so as to reasonably optimize the clamping force on the furnace body 3 and ensure the stable force of the furnace body 3.

[0059] In addition, when the temperature of the furnace body 3 changes and expands or contracts, the external support of the furnace body 3 is elastically adjustable, and the elastic member 22 can be telescopic synchronously, so that the forces on the opposite sides of the furnace body 3 are uniform, the furnace body 3 can expand uniformly, and the safety performance of the furnace body 3 is improved.

[0060] The elastic framework 100 of the straight furnace wall in the embodiment of the utility model can ensure the clamping force on the side wall of the furnace body 3, improve the stability of the elastic framework, and maintain the uniform expansion of the furnace body 3.

[0061] In some embodiments, the frame assembly 1 includes a frame body 11, an upper beam body 12, and a lower beam body 13. The upper beam body 12 and the lower beam body 13 extend in the horizontal direction, and the upper beam body 12 and the lower beam body 13 are arranged at intervals in the vertical direction. The upper beam body 12 and the lower beam body 13 are abutted against the side of the frame body 11 away from the furnace body 3.

[0062] A plurality of pulling assemblies 2 are provided between two relatively arranged frame assemblies 1. Some of the pulling assemblies 2 are connected between the two upper beam bodies 12 on the opposite sides of the furnace body 3, and the other pulling assemblies 2 are connected between the two lower beam bodies 13 on the opposite sides of the furnace body 3.

[0063] By arranging the upper beam body 12 and the lower beam body 13 at intervals in the vertical direction of the frame body 11, some of the pulling assemblies 2 are arranged between the two relatively arranged upper beam bodies 12, and the other pulling assemblies 2 are arranged between the two relatively arranged lower beam bodies 13, so that the forces acting on the frame body 11 are dispersed, avoiding local stress on the frame body 11, improving the structural stability of the frame body 11. At the same time, the clamping force acting on the furnace body 3 can be dispersed, making the forces on the opposite outer wall surfaces of the furnace body 3 uniform. When uniform expansion occurs between adjacent water jackets 312 in the furnace body 3, and the furnace body 3 can be effectively supported by the frame body 11.

[0064] In the embodiment of the utility model, the forces acting between the two upper beam bodies 12 and between the two lower beam bodies 13 are first dispersed in the transverse direction, and then dispersed to the outer wall surface of the furnace body 3 through the frame body 11, which can improve the structural stability of the frame body 11, avoid deformation of the frame body 11, facilitate the arrangement of the pulling assemblies 2, and avoid interference between the pulling assemblies 2 and the furnace body 3.

[0065] The outer wall surface of the furnace body 3 includes two side surfaces arranged in the width direction and two end surfaces arranged in the length direction. Since the length of the furnace body 3 is relatively long, the areas of the two side surfaces of the furnace body 3 are large, and at the same time, the forces on the side surfaces of the furnace body 3 are relatively large. If the pulling assemblies 2 are only arranged at the ends of the upper beam body 12 and the lower beam body 13 corresponding to the side surfaces, it will easily cause the middle parts of the upper beam body 12 and the lower beam body 13 to bend and cannot be effectively attached to the frame body 11. Therefore, the pulling assemblies 2 arranged between the two side surfaces of the furnace body 3 are arranged at intervals along the length direction of the upper beam body 12 and the lower beam body 13 on the premise of not interfering with the furnace body 3. At this time, in the vertical direction, the height of the upper beam body 12 is higher than the height of at least part of the sections of the furnace body 3, and the height of the lower beam body 13 is lower than the height of at least part of the sections of the furnace body 3.

[0066] For example, the furnace body 3 is a sedimentation tank 31. Since a reaction tower 32 and an upcomer 33 are provided above the sedimentation tank 31, the height of the upper beam body 12 is higher than at least part of the height of the sedimentation tank 31 of the furnace body 3, and the height of the lower beam body 13 is lower than at least part of the height of the sedimentation tank 31 of the furnace body 3. A plurality of pulling assemblies 2 on the lower beam body 13 are arranged at intervals along the length direction of the lower beam body 13, and the interval distance between two adjacent pulling assemblies 2 is substantially equal. The plurality of pulling assemblies 2 arranged on the upper beam body 12 are staggered from the reaction tower 32 and the upcomer 33, and the interval distance between two adjacent pulling assemblies 2 is also substantially equal.

[0067] The width dimension of the furnace body 3 is smaller than the length dimension of the furnace body 3. Due to the influence of the reaction tower 32 and the upcomer 33 in the furnace body 3, the pulling assemblies 2 cannot be evenly arranged on the upper beam body 12 and the lower beam body 13 corresponding to the end faces. At this time, the pulling assemblies 2 can be arranged at both ends of the upper beam body 12 and the lower beam body 13 corresponding to the end faces. Since the width dimension of the furnace body 3 is relatively small, when both ends of the upper beam body 12 and the lower beam body 13 are pulled, the middle part is not easily bent. In addition, the structural strength can be improved by strengthening the middle parts of the upper beam body 12 and the lower beam body 13. For example, reinforcing rib plates are provided in the middle parts of the upper beam body 12 and the lower beam body 13 corresponding to the end faces of the furnace body 3, or the thickness of the middle parts is increased.

[0068] In some embodiments, the frame body 11 includes a plurality of columns 111 and a plurality of ring beams 112. The columns 111 extend in the vertical direction, and the plurality of columns 111 are arranged at intervals and parallel to each other in the horizontal direction; the ring beams 112 extend in the horizontal direction, and the plurality of ring beams 112 are arranged at intervals and parallel to each other in the vertical direction. The adjacent columns 111 are connected by the ring beams 112. The ring beams 112 are in contact with the side wall surface of the furnace body 3, and the columns 111 are located on the side of the ring beams 112 away from the furnace body 3.

[0069] In order to further optimize the acting force of the frame body 11 on the furnace body 3, in the embodiments of the present invention, by arranging the columns 111 and the ring beams 112, the plurality of columns 111 and the plurality of ring beams 112 are arranged in a cross-grid shape. The acting force of the pulling assemblies 2 on the frame assembly 1 is first dispersed to the plurality of columns 111 through the upper beam body 12 and the lower beam body 13, and then dispersed to the plurality of ring beams 112 through the plurality of columns 111, so that the furnace body 3 is directly supported by the plurality of ring beams 112.

[0070] In the embodiments of the present invention, the plurality of ring beams 112 are arranged at intervals in the vertical direction, and the ring beams 112 extend in the horizontal direction. Therefore, the force on the furnace body 3 at the same height can be made stable and consistent, and each water jacket 312 in the furnace body 3 can be supported by the plurality of ring beams 112, thereby ensuring the structural stability of the furnace body 3.

[0071] The column 111 in the embodiment of the present utility model is a vertical structural member, and the upper beam body 12 and the lower beam body 13 are horizontal structural members that span outside the column 111. The upper beam body 12 and the lower beam body 13 evenly transfer the load of the tension component 2 to the column 111. The ring beam 112 is also a horizontal structural member, located between the furnace shell 311 and the column 111, connecting adjacent columns 111 into an integral frame structure and transferring the load from the column 111.

[0072] The tension component 2 in the embodiment of the present utility model is distributed in the upper and lower parts of the furnace body 3 and is an important component in the overall elastic skeleton, which can ensure reasonable pressure on each part of the furnace body 3, control reasonable deformation of the furnace body 3, ensure the safe operation of the furnace body 3, and extend the service life.

[0073] Optionally, the column 111 is an H-shaped steel, the ring beam 112 is a channel steel, and both the upper beam body 12 and the lower beam body 13 are H-shaped steels.

[0074] Further, each ring beam 112 is composed of two channel steels with their openings facing each other to ensure the force-bearing performance of the ring beam 112.

[0075] The upper beam body 12 and the lower beam body 13 can be one H-shaped steel or composed of two H-shaped steels arranged side by side in parallel. Or, the steel structure can be customized according to the force-bearing performance of the upper beam body 12 and the lower beam body 13, or a reinforcement structure can be added.

[0076] In some embodiments, a support 113 is provided on the side of the column 111 close to the furnace body 3, and the ring beam 112 is connected to the support 113. By providing the support 113, the ring beam 112 can be supported on the side of the column 111 close to the furnace body 3, preventing the ring beam 112 from displacing in the vertical direction, ensuring the structural stability of the frame body 11 formed by the column 111 and the ring beam 112, making the force acting on the outer wall surface of the furnace body 3 more evenly distributed, and ensuring the uniform expansion of the furnace body 3.

[0077] Optionally, the ring beam 112 and the support 113 are fixed by welding or connected and fixed by connectors such as bolts.

[0078] In some embodiments, there are four frame assemblies 1, two of which are arranged opposite to each other along the length direction of the furnace body 3, and the other two frame assemblies 1 are arranged opposite to each other along the width direction of the furnace body 3. It should be understood that the cross-section of the furnace body 3 is rectangular, the furnace body 3 has a length direction and a width direction, and the furnace body 3 has four outer wall surfaces that are arranged in pairs opposite to each other. Therefore, there are four frame assemblies 1, which are respectively in contact with the four outer wall surfaces.

[0079] Such as Figure 4 and Figure 5As shown, in some embodiments, the elastic member 22 is a conical scroll spring. By designing and calculating the force curve of the spring, it is ensured that it can meet the requirements of the clamping force of the furnace body 3, so that the spring can effectively clamp the furnace body 3 during both the active adjustment and the passive deformation processes.

[0080] In the embodiments of the present utility model, the use of a conical scroll spring enables it to have a relatively strong load-bearing capacity and be able to bear a large load. The stiffness of the spring increases with the increase of the compression amount, providing a stable supporting force under different loads, and its force curve can better adapt to the requirements of the clamping force during the expansion and contraction of the furnace body 3.

[0081] In some embodiments, the pulling assembly 2 includes a pull rod member 21 and a fastener 23. The pull rod member 21 is connected between two relatively arranged frame assemblies 1, and the end of the pull rod member 21 is located on the side of the corresponding frame assembly 1 away from the furnace body 3. The fastener 23 and the elastic member 22 are connected to the end of the pull rod member 21, with one end of the elastic member 22 abutting against the fastener 23 and the other end abutting against the frame assembly 1.

[0082] The pull rod member 21 is connected between two corresponding upper beam bodies 12 or between two corresponding lower beam bodies 13. When the conical scroll spring is sleeved on the end of the pull rod member 21 and the adjustment is completed by tightening with the fastener 23, the two upper beam bodies 12 or the two lower beam bodies 13 can be pulled.

[0083] Among them, conical scroll springs and fasteners 23 are arranged at both ends of the pull rod assembly.

[0084] The fastener 23 can be a nut. In order to improve the abutting effect with the conical scroll spring, a backing plate can be provided between the nut and the conical scroll spring to ensure the stable force of the conical scroll spring.

[0085] Furthermore, at least part of the pull rod member 21 in the pulling assembly 2 is an integral rod.

[0086] For example, the pull rod member 21 is a cylindrical rod with a constant diameter throughout its length, and a threaded section is provided at the end of the cylindrical rod for arranging the fastener 23.

[0087] According to the magnitude of the force on the corresponding pull rod member 21, the outer diameter size and material of the cylindrical rod can be adjusted.

[0088] For example, a cylindrical rod is provided between two upper beam bodies 12 or two lower beam bodies 13 corresponding to the end face of the furnace body 3.

[0089] In some embodiments, at least a part of the pull rod member 21 in the pulling assembly 2 includes a pull beam 211 and a first rod 212. One or more first rods 212 are connected to both ends of the pull beam 211 in the length direction thereof, and an elastic member 22 and a fastener 23 are provided on each of the first rods 212.

[0090] It should be understood that in order to improve the structural stability of the pull rod member 21 and the tensile force it can withstand, by arranging the pull beam 211 and arranging multiple first rods 212 at both ends of the pull beam 211, the pull rod member 21 can withstand a greater tensile force.

[0091] The pull beam 211 can be an H-shaped steel. Optionally, 2-4 first rods 212 are arranged at each end of the pull beam 211. The first rods 212 are cylindrical rods. At this time, a threaded section is provided on each of the first rods 212, and a conical scroll spring and a fastener 23 are arranged on each of them. Therefore, 2-4 conical scroll springs are arranged at each end of the pull rod member 21, so as to ensure the elastic performance of its skeleton.

[0092] For example, a pull rod member 21 including a pull beam 211 and a first rod 212 is arranged between two upper beam bodies 12 corresponding to the side surface of the furnace body 3 or between two lower beam bodies 13, so as to meet the clamping force acting between the two side surfaces of the furnace body 3.

[0093] The utility model selects different pull rod members 21 according to the magnitude of the clamping force between different outer wall surfaces of the furnace body 3, so as to ensure the structural stability, make the skeleton elastic and ensure sufficient clamping force on the outer wall surface.

[0094] In some embodiments, the straight furnace wall elastic skeleton 100 further includes a bottom beam 6. The bottom beam 6 abuts against the bottom of the furnace body 3. The number of the bottom beams 6 is multiple, and the multiple bottom beams 6 are arranged in parallel and at intervals along the length direction of the furnace body 3.

[0095] The bottom beam 6 is used to support the bottom of the furnace body 3. There are multiple bottom beams 6. The bottom beams 6 extend along the width direction of the furnace body 3, and the multiple bottom beams 6 are arranged at intervals along the length direction of the furnace body 3.

[0096] The bottom beam 6 can be an H-shaped steel.

[0097] Furthermore, a frame can be arranged between the bottom beam 6 and the bottom of the furnace body 3 to ensure uniform stress on the bottom of the furnace body 3.

[0098] The embodiment of the utility model can provide flash smelting furnaces and flash converting furnaces with greater single-unit production capacity and ensure the structural stability thereof.

[0099] The springs in the embodiment of the utility model are optimized and force calculated, and conical scroll springs are selected. Their force curves can meet the requirements of the clamping force of the furnace body 3 and the measurement of the clamping force.

[0100] The overall elastic framework of the embodiment of the utility model can effectively maintain the overall stability and synchronous expansion of the furnace body 3, ensuring both the safe operation of the furnace body 3 and the extension of its service life.

[0101] In the elastic framework of the embodiment of the utility model, components such as beams and columns at various positions bear relatively single and evenly balanced pressures, with good stress conditions, avoiding deformation or stress concentration caused by the beams and columns bearing multiple acting forces in different directions, and improving the stability of the elastic framework.

[0102] The embodiment of the utility model enables the internal expansion force of the furnace body 3 to be evenly transmitted to the furnace shell 311, and is balanced and transmitted to the ring beam 112 and the column 111 through the furnace shell 311, making the furnace wall structure more stable.

[0103] As Figures 6 - 13 shown, the flash furnace 200 of the embodiment of the utility model includes a furnace body 3 and a straight furnace wall elastic framework 100 as described in any one of the above embodiments. The straight furnace wall elastic framework 100 abuts against the outside of the furnace body 3, providing a clamping force to the outer wall surface of the furnace body 3. The clamping force on the outer wall surface of the furnace body 3 can be optimized by actively adjusting the expansion and contraction amount of the elastic member 22. When the temperature of the furnace body 3 rises or falls, the elastic member 22 synchronously expands and contracts to adjust the clamping force on the outer wall surface of the furnace body 3, improving the structural stability of the furnace body 3.

[0104] In some embodiments, the furnace body 3 includes a sedimentation tank 31, a reaction tower 32, and a rising flue 33. The sedimentation tank 31 has a furnace shell 311, a water jacket 312, and a lining 313 arranged in sequence from outside to inside; the straight furnace wall elastic framework 100 abuts against the outside of the furnace shell 311 of the sedimentation tank 31.

[0105] During operation, the flash furnace 200 is mainly used for the smelting of metal sulfide ores such as copper and nickel and the blowing of copper matte particles. After the sulfide is dried, it is sprayed into the reaction tower 32 at a high speed together with oxygen-enriched air through the concentrate nozzle. Under the action of high temperature, oxidation desulfurization, melting, slag formation and other reactions occur rapidly using the huge surface energy of the fine concentrate particles. The formed melt falls into the sedimentation tank 31 and further completes the slag formation process, and is separated into enriched metal products and slag, and the generated flue gas is discharged from the rising flue 33.

[0106] Therefore, optimizing and improving the structural stability of the sedimentation tank 31 can further improve the performance of the flash furnace 200, contribute to the further improvement of the production capacity of the flash furnace 200, and ensure the structural stability of the flash furnace 200.

[0107] As Figure 10 and Figure 11As shown, in some embodiments, the flash furnace 200 is a flash smelting furnace. The diameter L2 of the reaction tower 32 of the flash smelting furnace is greater than or equal to 7.2 m, and the height L3 is greater than or equal to 9.3 m. The length L1 of the settling tank 31 of the flash smelting furnace is greater than or equal to 26.35 m, the width L5 is greater than or equal to 10 m. The length L6 of the outlet of the upcomer 33 of the flash smelting furnace is greater than or equal to 5 m, and the width L4 is greater than or equal to 3.5 m.

[0108] Alternatively, as Figure 12 and Figure 13 shown, the flash furnace 200 is a flash converting furnace. The diameter L8 of the reaction tower 32 of the flash converting furnace is greater than or equal to 5.2 m, and the height L9 is greater than or equal to 7.87 m. The length L7 of the settling tank 31 of the flash converting furnace is greater than or equal to 23 m, the width L11 is greater than or equal to 8 m. The length L12 of the outlet of the upcomer 33 of the flash converting furnace is greater than or equal to 3.5 m, and the width L10 is greater than or equal to 3 m.

[0109] The cross-section of the reaction tower 32 in the flash furnace 200 is cylindrical, the cross-section of the settling tank 31 is rectangular, and the outlet cross-section of the upcomer 33 is rectangular. The dimensions of the components in the above embodiments are the dimensions of the inner cavity.

[0110] The diameter and height of the reaction tower 32 are important indicators of production capacity. The size of the settling tank 31 affects the separation efficiency of slag and metal. The upcomer 33 affects the discharge efficiency of flue gas and carried dust, as well as the subsequent flue gas treatment and waste heat recovery capacity.

[0111] The embodiments of the present utility model can further improve the production capacity of the flash smelting furnace, which is one order of magnitude higher than that of the related art. The maximum production capacity in the related art is 400,000 - 500,000 tons, and the embodiments of the present utility model can reach more than 600,000 tons through the flash furnace 200, while ensuring the structural stability of the furnace body 3.

[0112] After the dimensions of the components of the flash furnace 200 in the embodiments of the present utility model meet the above requirements, the straight furnace wall elastic skeleton 100 of the embodiments of the present utility model can ensure its structural stability, enabling it to operate normally and stably.

[0113] Of course, when the present utility model is applied to a flash furnace 200 with dimensions smaller than the above, it can also achieve a good support effect and ensure the structural stability of the furnace body 3.

[0114] In some embodiments, the width of the water jacket 312 is 500 mm to 800 mm, and the overlapping width between two adjacent water jackets 312 is 20 mm to 60 mm. The embodiments of the present utility model can reduce the size of the water jacket 312 in each area, making it more convenient to replace, easier to adjust the cooling intensity, and ensuring the stable force of each water jacket 312.

[0115] For example, the width L of the water jacket 312 is 500 mm, 600 mm, 635 mm, 660 mm, 768 mm, or 800 mm.

[0116] When the width of the water jacket 312 is too small, it is easy to cause unstable stress on part of the water jacket 312. When expanding, it cannot ensure that each water jacket 312 is in effective contact with the elastic framework. When the water jacket 312 is larger than 800 mm, it is easy to cause difficulties in replacement and inflexible temperature regulation.

[0117] Compared with the size of the water jacket 312 in the prior art, the size of the water jacket 312 in the related art is generally larger, mostly above 800 mm, to ensure the structural stability of the furnace body 3. The elastic framework in the embodiment of the present utility model can ensure the stable stress on the outer wall surface of the furnace body 3, so that the size of the water jacket 312 can be reduced, with better temperature regulation ability and convenient replacement.

[0118] Again, for example, the overlapping width S between adjacent water jackets 312 is 20 mm, 26 mm, 33 mm, 46 mm, 57 mm, or 60 mm. The increased overlapping allowance between the water jackets 312 can ensure that the melt does not leak out to the maximum extent under the condition of adapting to expansion.

[0119] In the related art, the furnace body 3 cannot achieve uniform expansion, with concentrated internal stress after being stressed, poor structural stability, small expansion adjustment range, and small overlapping width, making the furnace body 3 unable to expand uniformly. The elastic framework in the embodiment of the present utility model can make the furnace body 3 expand uniformly and improve its structural stability.

[0120] Furthermore, a plurality of viewing windows 4 are provided on the furnace shell 311 in the embodiment of the present utility model, and the viewing windows 4 correspond to the overlapping parts of two adjacent water jackets 312. A viewing window 4 is opened on the furnace shell 311 at the overlapping part of two water jackets 312, which can not only observe the expansion situation inside the furnace, but also directly detect the temperature of the water jacket 312 separately, and can timely feedback the loss situation of the refractory material inside the furnace, improving the practicability.

[0121] Furthermore, the flash furnace 200 in the embodiment of the present utility model further includes a connecting rod assembly 5. The connecting rod assembly 5 is connected between the elastic framework 100 of the straight furnace wall and the water jacket 312 at the top of the sedimentation tank. The connecting rod assembly 5 extends in the vertical direction, and the length of the connecting rod assembly 5 is adjustable, so that the direction of the acting force of the connecting rod assembly 5 on the water jacket 312 is vertically upward, or the direction of the acting force of the connecting rod assembly 5 on the water jacket 312 is vertically downward.

[0122] That is to say, by adjusting the length of the connecting rod assembly 5, the connecting rod assembly 5 can provide a vertically upward pulling force for the water jacket 312 at the top of the sedimentation tank to hang the water jacket at the top of the sedimentation tank, or provide a vertically downward pushing force for the water jacket 312 at the top of the sedimentation tank to realize the thrust prevention of the water jacket at the top of the sedimentation tank.

[0123] For example, the connecting rod assembly 5 includes a right-handed screw, a left-handed screw, and an adjusting sleeve. The adjusting sleeve is connected between the right-handed screw and the left-handed screw. By rotating the adjusting sleeve, the total length of the connecting assembly can be adjusted, so that the hanging or thrust of the water jacket 312 can be realized.

[0124] Optionally, a tension beam 211 is provided on the pull rod member 21 in the partial pulling assembly 2. One end of the connecting assembly is arranged on the tension beam 211 of the straight furnace wall elastic skeleton 100. When there is a deviation in position from the water jacket 312, the position deviation between the tension beam 211 and the water jacket 312 can be adjusted by fixing a hanging beam on the tension beam 211 to ensure that the connecting assembly is in a vertical state.

[0125] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It 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 should not be construed as a limitation to the present invention.

[0126] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0127] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection, or communicable with each other; it can be directly connected, or indirectly connected through an intermediate medium, and can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0128] In the present utility model, unless otherwise clearly specified or limited, the first feature being "on" or "under" the second feature may mean that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "below" and "beneath" the second feature may mean that the first feature is directly below or obliquely below the second feature, or merely indicates that the horizontal height of the first feature is less than that of the second feature.

[0129] In the present utility model, the terms "an embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0130] Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present utility model. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present utility model.

Claims

1. An elastic framework for a straight furnace wall, characterized in that, Comprising: Frame components, the number of the frame components being multiple, the multiple frame components being arranged along the circumferential direction of the furnace body, and the frame components being in contact with the outer wall surface of the furnace body; Tension components, two relatively arranged frame components being connected by the tension components to clamp the furnace body; The tension component has an elastic member, the compression amount of the elastic member is adjusted to adjust the clamping force of two relatively arranged frame components on the furnace body, and the elastic member is telescopic as the furnace body expands and contracts.

2. The elastic framework of the straight furnace wall according to claim 1, wherein The frame component includes a frame body, an upper beam body and a lower beam body, the upper beam body and the lower beam body extending in the horizontal direction, the upper beam body and the lower beam body being arranged at intervals in the vertical direction, and the upper beam body and the lower beam body being in contact with the side of the frame body away from the furnace body; A plurality of the tension components are provided between two relatively arranged frame components, some of the tension components being connected between the two upper beam bodies on the opposite sides of the furnace body, and the other tension components being connected between the two lower beam bodies on the opposite sides of the furnace body.

3. The elastic framework of the straight furnace wall according to claim 2, characterized in that, The frame body includes: A plurality of columns, the columns extending in the vertical direction, the plurality of columns being arranged at intervals and parallel to each other in the horizontal direction; A plurality of ring beams, the ring beams extending in the horizontal direction, the plurality of ring beams being arranged at intervals and parallel to each other in the vertical direction, adjacent columns being connected by the ring beams, the ring beams being in contact with the side wall surface of the furnace body, and the columns being located on the side of the ring beams away from the furnace body.

4. The elastic framework of the straight furnace wall according to claim 3, characterized in that, A support is provided on the side of the column close to the furnace body, and the ring beam is connected to the support; And / or, the number of the frame components is four, two of the frame components being relatively arranged along the length direction of the furnace body, and the other two frame components being relatively arranged along the width direction of the furnace body; And / or, the elastic member is a conical scroll spring.

5. The elastic framework of the straight furnace wall according to any one of claims 1 to 4, characterized in that The tension component includes a pull rod member and a fastener, the pull rod member being connected between two relatively arranged frame components, and the end of the pull rod member being located on the side of the corresponding frame component away from the furnace body, the fastener and the elastic member being connected to the end of the pull rod member, one end of the elastic member being in contact with the fastener and the other end being in contact with the frame component.

6. The elastic framework of the straight furnace wall according to claim 5, wherein At least part of the pull rod members in the tension components are integral bars; and / or At least part of the pull rod members in the tension components include a pull beam and a first rod, one or more first rods being connected to both ends of the pull beam in the length direction, and the elastic member and the fastener being provided on each first rod.

7. The elastic framework of the straight furnace wall according to claim 1, wherein It further includes a bottom beam, the bottom beam being supported against the bottom of the furnace body, the number of the bottom beams being multiple, the multiple bottom beams being arranged parallel to each other and at intervals along the length direction of the furnace body.

8. A flash smelting furnace, characterized in that, Comprising a furnace body and a straight furnace wall elastic skeleton according to any one of claims 1 to 7, the straight furnace wall elastic skeleton being in contact with the outside of the furnace body.

9. The flash furnace according to claim 8, characterized in that, The furnace body includes a sedimentation tank, a reaction tower and a rising flue, the sedimentation tank having a furnace shell, a water jacket and a lining arranged in sequence from outside to inside; The straight furnace wall elastic skeleton is in contact with the outside of the furnace shell of the sedimentation tank.

10. The flash furnace according to claim 9, characterized in that, The flash furnace is a flash smelting furnace. The diameter of the reaction tower of the flash smelting furnace is greater than or equal to 7.2 m, and the height is greater than or equal to 9.3 m. The length of the settling pond of the flash smelting furnace is greater than or equal to 26.35 m, and the width is greater than or equal to 10 m. The length of the outlet of the upcomer of the flash smelting furnace is greater than or equal to 5 m, and the width is greater than or equal to 3.5 m. Or, the flash furnace is a flash converting furnace. The diameter of the reaction tower of the flash converting furnace is greater than or equal to 5.2 m, and the height is greater than or equal to 7.87 m. The length of the settling pond of the flash converting furnace is greater than or equal to 23 m, and the width is greater than or equal to 8 m. The length of the outlet of the upcomer of the flash converting furnace is greater than or equal to 3.5 m, and the width is greater than or equal to 3 m. Or, the width of the water jacket is 500 mm to 800 mm, and the overlapping width between two adjacent water jackets is 20 mm to 60 mm. Or, a plurality of viewing windows are provided on the furnace shell, and the viewing windows correspond to the overlapping parts of two adjacent water jackets. Or, a connecting rod assembly is further included. The connecting rod assembly is connected between the straight furnace wall elastic skeleton and the water jacket at the top of the settling pond. The connecting rod assembly extends in the vertical direction, and the length of the connecting rod assembly is adjustable so that the direction of the force exerted by the connecting rod assembly on the water jacket is vertically upward or the direction of the force exerted by the connecting rod assembly on the water jacket is vertically downward.

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