Novel corner module for shaft furnace
By increasing the connection length between the corner module and the cardboard and improving the fixing method, the problem of corner modules being disconnected and fall off at high temperature in the prior art is solved, and the stable fixation and high temperature stability of the corner module are achieved.
Patent Information
- Application Number
- CN202420893463.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-26
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-04-26
AI Technical Summary
The existing vertical furnace corner modules are prone to cause the upper and lower brackets to be disconnected under high temperature conditions, and the spring pull rod bolts are heated and broken, causing the corner module to fall off and block the material.
A new corner module was designed. By increasing the connection length of the upper clamp plate, the first connecting part and the lower clamp plate and the connecting groove, the corner module was used to directly connect to the upper clamp plate and the lower clamp plate, and fixing it with bolts, adding Insulated components to prevent the bolts from being heated, use a tortoise shell mesh and anchor hook to prevent the knot from falling off, ensuring a firm fixation of the corner module.
Effectively prevent the corner module from falling out of groove and falling off during use, ensuring that the corner module does not detach after being heated and expands, improving the stability and service life of the corner module.
Smart Images
Figure CN222211188U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of vertical furnace equipment, in particular to a novel corner module for a vertical furnace. Background Art
[0002] A vertical furnace is a metallurgical equipment used for roasting metallurgical pellets. The vertical furnace structure includes a storage platform, an inner cylindrical sleeve, an outer cylindrical sleeve, a smoke hood, a corner cooling system, a combustion system, a discharge hopper, a cooling system, a hot material tank and a weighing system, a material level detector, and a steel structure frame. Figure 1 It is a schematic diagram of the connection structure of the material storage platform 1, the inner cylindrical sleeve 2, the outer cylindrical sleeve 3, the smoke hood 4, and the corner cooling system 5. The roasting chamber 6 is located above the material storage platform. The cooling wind from the outside enters the interior of the vertical furnace from the lower part of the vertical furnace. The cooling wind cools the high-temperature finished pellets accumulated at the lower part of the vertical furnace, and at the same time exchanges heat with the high-temperature finished pellets to reduce the discharge temperature of the finished pellets. The temperature of the cooling wind gradually increases during the rising process, and after the fuel is burned, it is further heated to become roasting wind. The roasting wind preheats and roasts the pellets in the furnace.
[0003] The installation position of the corner module is located at the corner connection between the bottom of the inner cylindrical sleeve 2 and the top plate of the roasting chamber 6, such as Figure 2 The structure of the existing corner module is as follows Figure 3 As shown, the corner module 7 includes a first corner portion 71 having an L-shaped structure, a second corner portion 72 is arranged at the short side of the first corner portion, the first corner portion and the second corner portion are integrally formed, an upper groove 711 is provided on the side of the first corner portion 71, the upper groove width is 19mm, the depth is 15mm, the upper groove is connected to the upper card plate 8 located at the inner cylindrical sleeve, and a lower groove 721 is provided on the side of the second corner portion 72, the lower groove is embedded in the lower card plate 9 located at the top plate of the roasting chamber 6, and the lower groove overlaps the lower card plate by 15mm. In addition, the corner module is fixed to the top cover of the corner cooling air duct by a spring 73 and a pull rod bolt 74. The corner module is divided into a male corner module and a female corner module, and the male corner module and the female corner module are connected by a "Z"-shaped overlap, and the overlap length is 20mm.
[0004] The corners are resistant to high temperature wear: they can withstand the high temperature of 1150 degrees Celsius in the roasting chamber; when the storage platform adjusts the eccentricity (0-39.6mm) and the pellet surface exceeds 625.7mm, the discharging platform drives the pellets and the outer cylindrical sleeve to rotate in the same direction relative to the inner cylindrical sleeve (including the corner module), and friction occurs between the pellets and the corner module.
[0005] Due to the high temperature conditions in the furnace, the connection between the upper and lower slots of the corner module and the upper and lower card plates is too small. After the corner module is heated and expanded and deformed, the upper and lower card plates are easily out of the slots. In addition, springs and pull rod bolts are used to fix the corner module in the prior art. However, when the corner module is heated and expanded, hot air enters the cooling air duct and directly heats the bolts, causing them to stretch, deform and break. This may also cause the upper and lower card plates to slide out of the slots, causing the corner module to fall off and cause blockage. Utility Model Content
[0006] The technical problem to be solved by the utility model is to provide a novel corner module for a vertical furnace, which can solve the problems that the corner module is easily out of the groove with the upper and lower clamping plates, and the spring pull rod bolts are broken due to heat, resulting in the overlapping and falling off.
[0007] The utility model is achieved in this way:
[0008] The utility model provides a novel corner module for a vertical furnace, comprising a plurality of corner units, each of the corner units comprising a corner body, the corner body having a long side and a short side, the short side being arranged at the lower end of the long side; a first connecting portion is arranged at the top of the long side, a protrusion is arranged at the side wall of the long side, a spacing is left between the protrusion and the connecting portion, the spacing forms a card slot matching an upper clamping plate, and the end face of the first connecting portion and the end face of the protrusion do not overlap in the vertical direction, a second connecting portion is arranged on the top face of the short side, a connecting groove matching with a lower clamping plate is arranged on the side face of the second connecting portion, the length of the connecting groove is at least 75 mm, a first bolt hole is provided in the first connecting portion and the connecting groove, the upper clamping plate and the lower clamping plate are provided with a second bolt hole corresponding to the first bolt hole, and a bolt for fixing the corner unit is connected with a nut after passing through the first bolt hole and the second bolt hole.
[0009] Furthermore, the plurality of corner units are divided into male corner units and female corner units, the male corner unit is provided with a first connecting surface on the side facing away from the protrusion, and the female corner unit is provided with a second connecting surface on the side close to the protrusion, the male corner unit and the female corner unit are connected by bolts, and during installation, the first connecting surface and the second connecting surface are in contact with each other.
[0010] Furthermore, ribs are connected between the long side and the short side.
[0011] Furthermore, the distance from the end surface of the first connecting portion to the end surface of the protrusion is at least 65 mm.
[0012] Furthermore, the length of the connecting groove is at least 75 mm.
[0013] Furthermore, a heat-insulating component for preventing the bolts from being heated is provided at the bottom of the top plate of the roasting chamber, the heat-insulating component includes a first anchor hook with a U-shaped cross section, first extensions are provided at both ends of the first anchor hook, the first anchor hook is connected to a tortoise shell net, the bottom of the tortoise shell net is in contact with the top of the first extension, the short side extends to the tortoise shell net, and knotting materials are respectively provided on the side wall of the inner cylindrical sleeve and between the tortoise shell net and the top plate of the roasting chamber;
[0014] The side wall of the inner cylindrical sleeve is provided with a second anchor hook for preventing the knotted material from falling off, the second anchor hook is in a U-shaped structure, and second extension parts are provided at both ends of the second anchor hook.
[0015] Furthermore, triangular plates are provided between the upper clamping plate and the side wall of the inner cylindrical sleeve and between the lower clamping plate and the top plate of the roasting chamber.
[0016] The advantages of the utility model are: the length of the connection position between the lower clamping plate and the connecting groove and the length of the connection position between the upper clamping plate and the first connecting part is increased in the present application, and the spring and pull rod bolts for fixing the corner module in the prior art are replaced with the corner module being directly connected to the upper clamping plate and the lower clamping plate, so that the corner module is fixed more firmly, and the corner module will not be out of the groove or fall off during use.
[0017] Furthermore, after the overlap length between the male corner unit and the female corner unit is lengthened and bolt connections are provided at the overlap positions, no separation occurs between the corner modules after thermal expansion. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] The present invention will be further described below in conjunction with the embodiments with reference to the accompanying drawings.
[0019] Figure 1 It is a schematic diagram of the connection structure of the material storage platform, the inner cylindrical sleeve, the outer cylindrical sleeve, the smoke guide hood, and the corner cooling system in the prior art.
[0020] Figure 2 for Figure 1 A partial enlarged view of point A in the middle.
[0021] Figure 3 It is a schematic diagram of the structure of a male corner module and a female corner module in the prior art.
[0022] Figure 4 It is a schematic diagram of a male corner unit of the utility model.
[0023] Figure 5 It is a schematic diagram of the female corner unit of the utility model.
[0024] Figure 6 It is a side view of the corner unit of the utility model.
[0025] Figure 7 It is a structural schematic diagram of the corner unit of the utility model installed at the corner connection between the bottom of the inner cylindrical sleeve and the top plate of the roasting chamber.
[0026] Description of the numbers in the figure:
[0027] 10. Corner unit; 101. Corner body; 1011. Long side; 1012. Short side; 102. First connecting part; 103. Protrusion; 104. Slot; 105. Second connecting part; 106. Connecting slot; 107. First bolt hole; 20. Bolt; 30. Nut; 40. First connecting surface; 50. Second connecting surface; 60. Rib; 70. Thermal insulation component; 701. First anchor hook; 7011. First extension part; 702. Tortoise shell mesh; 703. Knotting material; 80. Triangle plate; 90. Countersunk bolt. DETAILED DESCRIPTION
[0028] See also Figures 4 to 7 The utility model provides a new corner module for a vertical furnace, including a plurality of corner units 10, each of which includes a corner body 101, wherein the corner body 101 has a long side 1011 and a short side 1012, wherein the short side 1012 is arranged at the lower end of the long side 1011, and the angle between the short side 1012 and the long side 1011 is less than 90°; a first connecting portion 102 is arranged on the top of the long side 1011, and a protrusion 103 is arranged on the side wall of the long side 1011, wherein a spacing is left between the protrusion 103 and the connecting portion, and the spacing forms a card slot 104 matching with an upper card plate, and when installed, the upper card plate is inserted into the card slot 104, and the end face of the first connecting portion 102 does not overlap with the end face of the protrusion 103 in the vertical direction, such as Figure 6 As shown, the first connection part 102 extends to a position closer to the second connection part 105, so that the overlapping area of the first connection part 102 and the upper card plate is increased, and the distance from the end face of the first connection part 102 to the end face of the protrusion 103 is at least 65 mm. After the corner unit 10 is heated and expanded, even if the upper card plate slides out of the slot 104, the upper card plate is still in contact with the first connection part 102, which can prevent the corner unit 10 from being completely separated from the upper card plate. The top surface of the short side portion 1012 is provided with a second connection part 105, and the side surface of the second connection part 105 is provided with a connecting groove 106 that fits with the lower card plate, and the length of the connecting groove 106 is at least 75 mm. The first connection part 102 and the connecting groove 106 are both provided with a first bolt hole 107, and the upper card plate and the lower card plate are provided with a second bolt hole corresponding to the first bolt hole 107. The bolt 20 for fixing the corner unit 10 passes through the first bolt hole 107 and the second bolt hole and is connected with a nut 30.
[0029] Specifically, the plurality of corner units 10 are divided into male corner units and female corner units. When in use, the male corner units and the female corner units are used in combination. The male corner unit is provided with a first connecting surface 40 on the side away from the protrusion 103, and the female corner unit is provided with a second connecting surface 50 on the side close to the protrusion 103. In the prior art, the overlap between the corner modules is too small, and there is no fixed connection at the overlap, which causes detachment after thermal expansion and deformation. For this reason, in the present application, the lateral length of the first connecting surface 40 and the second connecting surface 50 is set to 50 mm, and a through hole is opened at the first connecting surface 40, and a countersunk through hole 501 is opened at the second connecting surface 50. The male corner unit 10 and the female corner unit 10 are connected by a countersunk bolt 90, and during installation, the first connecting surface 40 and the second connecting surface 50 are in contact with each other.
[0030] Specifically, a rib 60 is connected between the long side 1011 and the short side 1012. The long side 1011, the short side 1012, the first connection part 102, the protrusion 103, the second connection part 105 and the rib 60 are all integrally formed.
[0031] Specifically, a heat-insulating component 70 for preventing the bolts from being heated is provided at the bottom of the roasting chamber top plate, and the heat-insulating component 70 includes a first anchor hook 701 with a U-shaped cross-section, and the first anchor hook 701 is fixed to the corresponding bottom of the roasting chamber top plate and the side of the inner cylindrical sleeve, and first extension portions 7011 are provided at both ends of the first anchor hook 701, and the first extension portion 7011 is perpendicular to the side wall of the first anchor hook 701, and the first anchor hook 701 is connected to a tortoise shell net 702, and the bottom of the tortoise shell net 702 is in contact with the top of the first extension portion 7011, and the short side portion 1012 extends to the tortoise shell net 702, and the first anchor hook 701, the first extension portion 7011 and the tortoise shell net can prevent the knotted material from falling off, and the short side portion 1012 extends to the position of the tortoise shell net 702, which can more effectively support the knotted material 703. The side wall of the inner cylindrical sleeve and between the tortoise shell net 702 and the top plate of the roasting chamber are respectively provided with knotting materials 703, which can prevent the bolts fixing the corner module from being damaged due to high temperature. The side wall of the inner cylindrical sleeve is provided with a second anchor hook 21 for preventing the knotting material from falling off. The second anchor hook 21 is a U-shaped structure, and the two ends of the second anchor hook 21 are provided with a second extension part 211. The second extension part 211 is perpendicular to the side wall of the second anchor hook 21. The second anchor hook and the extension part effectively knot the knotting material with the side wall of the inner cylindrical sleeve to prevent the knotting material from falling off.
[0032] Specifically, a triangular plate 80 is provided between the upper clamping plate and the side wall of the inner cylindrical sleeve, and between the lower clamping plate and the top plate of the roasting chamber. The triangular plate 80 can ensure the effective connection between the upper clamping plate and the inner cylindrical sleeve, and between the lower clamping plate and the top plate of the roasting chamber, and ensure the horizontality and thermal deformation of the upper clamping plate, as well as the verticality and thermal deformation of the lower clamping plate. The second anchor hook on the side wall of the inner cylindrical sleeve, the upper clamping plate, the upper triangular plate, and the connecting bolts of the corner module and the upper clamping plate are all knotted and protected with knotting material (casting material).
[0033] In the present application, the length of the connection position between the lower card plate and the connecting groove and the upper card plate and the first connecting part is increased, and the spring and pull rod bolts for fixing the corner module in the prior art are replaced with the corner module directly connected to the upper card plate and the lower card plate, so that the corner module is fixed more firmly, and the corner module will not be out of the groove or fall off during use.
[0034] Furthermore, after the overlap length between the male corner unit and the female corner unit is lengthened and bolt connections are provided at the overlap positions, no separation occurs between the corner modules after thermal expansion.
[0035] Although the specific implementation methods of the present invention are described above, those skilled in the art should understand that the specific embodiments described are only illustrative and are not intended to limit the scope of the present invention. Equivalent modifications and changes made by those skilled in the art in accordance with the spirit of the present invention should be included in the scope of protection of the claims of the present invention.
Claims
1. A new type of corner module for vertical furnace, Features: A plurality of corner units are included, each of which includes a corner body, the corner body having a long side and a short side, the short side being arranged at the lower end of the long side; a first connecting portion is provided on the top of the long side, a protrusion is provided on the side wall of the long side, a spacing is left between the protrusion and the connecting portion, the spacing forms a card slot matching the upper card plate, and the end face of the first connecting portion and the end face of the protrusion do not overlap in the vertical direction, a second connecting portion is provided on the top face of the short side, a connecting groove matching the lower card plate is provided on the side face of the second connecting portion, the length of the connecting groove is at least 75 mm, a first bolt hole is provided in the first connecting portion and the connecting groove, the upper card plate and the lower card plate are provided with a second bolt hole corresponding to the first bolt hole, and the bolts for fixing the corner unit are connected with nuts after passing through the first bolt hole and the second bolt hole.
2. A novel corner module for a vertical furnace as claimed in claim 1, Features: The plurality of corner units are divided into male corner units and female corner units. The male corner unit is provided with a first connecting surface on the side facing away from the protrusion, and the female corner unit is provided with a second connecting surface on the side close to the protrusion. The male corner unit and the female corner unit are connected by bolts, and during installation, the first connecting surface and the second connecting surface are in contact with each other.
3. A novel corner module for a vertical furnace as claimed in claim 1, Features: A rib is connected between the long side and the short side.
4. A novel corner module for a vertical furnace as claimed in claim 1, Features: The distance from the end surface of the first connecting portion to the end surface of the protrusion is at least 65 mm.
5. A novel corner module for a vertical furnace as claimed in claim 1, Features: A heat-insulating component for preventing the bolts from being heated is arranged at the bottom of the top plate of the roasting chamber, the heat-insulating component includes a first anchor hook with a U-shaped cross section, first extension parts are arranged at both ends of the first anchor hook, the first anchor hook is connected to a tortoise shell net, the bottom of the tortoise shell net is in contact with the top of the first extension part, the short side part extends to the tortoise shell net, and knotting materials are arranged on the side wall of the inner cylindrical sleeve and between the tortoise shell net and the top plate of the roasting chamber respectively; The side wall of the inner cylindrical sleeve is provided with a second anchor hook for preventing the knotted material from falling off, the second anchor hook is in a U-shaped structure, and second extension parts are provided at both ends of the second anchor hook.
6. A novel corner module for a vertical furnace as claimed in claim 1, Features: Triangular plates are arranged between the upper clamping plate and the side wall of the inner cylindrical sleeve, and between the lower clamping plate and the top plate of the roasting chamber.