CN116222227A - Furnace cover structure of circular furnace - Google Patents

Furnace cover structure of circular furnace Download PDF

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Publication number
CN116222227A
CN116222227A CN202310251525.1A CN202310251525A CN116222227A CN 116222227 A CN116222227 A CN 116222227A CN 202310251525 A CN202310251525 A CN 202310251525A CN 116222227 A CN116222227 A CN 116222227A
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CN
China
Prior art keywords
heat insulation
insulation material
furnace
plates
fiber
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Pending
Application number
CN202310251525.1A
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Chinese (zh)
Inventor
李海鹏
徐江云
陆勇
朱咸中
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Suzhou Longray Thermal Technology Co Ltd
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Suzhou Longray Thermal Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Suzhou Longray Thermal Technology Co Ltd filed Critical Suzhou Longray Thermal Technology Co Ltd
Priority to CN202310251525.1A priority Critical patent/CN116222227A/en
Publication of CN116222227A publication Critical patent/CN116222227A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D1/18—Door frames; Doors, lids, removable covers
    • F27D1/1808—Removable covers
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/26—Methods of annealing
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/0006—Details, accessories not peculiar to any of the following furnaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27M—INDEXING SCHEME RELATING TO ASPECTS OF THE CHARGES OR FURNACES, KILNS, OVENS OR RETORTS
    • F27M2003/00—Type of treatment of the charge
    • F27M2003/01—Annealing

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)

Abstract

The invention relates to the technical field of furnace covers, in particular to a furnace cover structure of a circular furnace. According to the invention, the heat insulation groove is divided into the heat insulation cavities by sequentially connecting the transverse plate and the vertical plate, the heat insulation material is hung on the cover body through the connecting mechanism for filling the heat insulation groove, the circular furnace can be temporarily or long-term used as a furnace cover, the structure is simple, the installation is convenient, the heat insulation cavities divided by the transverse plate and the vertical plate are stable and reliable, the transverse plate and the vertical plate can support and buffer the heat insulation material when the heat insulation material is heated and expanded, the heat insulation material is effectively prevented from being heated and expanded, and the heat insulation material has higher thermal shock resistance, so that the heat insulation material has longer service life.

Description

Furnace cover structure of circular furnace
Technical Field
The invention relates to the technical field of furnace covers, in particular to a furnace cover structure of a circular furnace.
Background
Annealing is a common process in aluminum processing, and is also performed by softening a cast, forged, welded, or machined material or workpiece, improving plasticity and toughness, homogenizing chemical components, removing residual stress, or obtaining desired physical properties. The annealing furnace is an indispensable processing device in annealing processing, and is usually that firstly, a furnace liner in the annealing furnace is taken out from a hearth of the annealing furnace, a workpiece is put into the furnace liner, then the furnace liner is put into the hearth, the furnace liner is withdrawn from the hearth of the annealing furnace after being heated to a preset temperature and kept for a certain time, and then the workpiece is taken out from the furnace liner.
The bell that current circular annealing stove adopted is generally spherical bell, and spherical bell has good performance in the heated environment, but when overhauling it, needs to overturn it and makes to overhaul inconvenient, installs the special-shaped brick of laminating its spherical face on the spherical bell simultaneously, and not only the maintenance degree of difficulty is big, influences the maintenance time limit, has still greatly increased use cost.
Disclosure of Invention
The invention aims to solve the technical problem of providing the circular furnace cover structure which has the advantages of temporary or long-term furnace cover use, simple structure, stability, reliability and longer service life.
In order to solve the technical problems, the technical scheme adopted by the invention for solving the technical problems is as follows:
a circular furnace lid structure comprising:
the cover body is provided with a heat insulation groove and is of a circular structure;
the baffle plate mechanism is arranged on the heat insulation groove and comprises a plurality of transverse plates and a plurality of vertical plates, and the transverse plates and the vertical plates are sequentially connected to divide the heat insulation groove into a plurality of heat insulation cavities;
the heat insulation material is arranged in the heat insulation cavity, and the heat insulation groove is filled by the heat insulation material;
the connecting mechanism is arranged on the heat insulation material, and the heat insulation material is hung on the cover body through the connecting mechanism.
Further, the cross plates and the vertical plates are fiber plates, the height of the fiber plates is the same as the thickness of the heat insulation material, and the heat insulation material fills expansion allowance generated by compression of the fiber plates between adjacent heat insulation cavities when being heated and expanded, so that the heat insulation material is prevented from being heated and expanded.
Further, the fiberboard comprises two vertical plates, the two vertical plates are arranged in a staggered mode, the two vertical plates are connected through a sloping plate, a Z-shaped structure is formed between the sloping plate and the two vertical plates, the vertical plates and the sloping plate are of an integrated structure, and the sloping plate is inclined in the direction of the cover body.
Further, the fiber board is formed by sequentially laminating a plurality of layers of fiber sheets, and the thickness of the fiber sheets is 1-3mm.
Further, the heat insulation material comprises a refractory castable, wherein a main fiber felt is arranged on the refractory castable, and a heat insulation castable is arranged on the main fiber felt.
Further, a side fiber felt is arranged between the refractory castable and the inner side wall of the heat insulation groove, and the thickness of the side fiber felt is 30-50mm.
Further, the connecting mechanism comprises an anchor, the anchor is embedded in the heat insulation material, a connecting plate is arranged on the cover body, the connecting plate is connected with the anchor through a fixing clamp, and the heat insulation material is hung on the connecting plate through a fixing frame on the anchor.
Further, the anchoring piece is an anchoring brick, a plurality of positioning protrusions are arranged on the outer side face of the anchoring brick, the positioning protrusions are clamped on the heat insulation material, a fixing groove matched with the fixing clamp is formed in the free end of the anchoring brick, and the fixing end of the fixing clamp is clamped on the fixing groove.
Further, the anchoring piece is coated with an auxiliary fiber felt, and the auxiliary fiber felt is respectively connected with the refractory castable, the main fiber felt and the heat-insulating castable.
Further, the fixation clamp includes two clamp bodies, clamp body one end is provided with the pothook, and the other end is provided with the lifting hook, the pothook card is established on the anchor assembly, the lifting hook hoist and mount on the draw-in groove of connecting plate, two clamp bodies are X type structure setting, and the middle part of two clamp bodies is connected through the steel wire, through pothook and the lifting hook on two clamp bodies to the anchor assembly with the connecting plate is connected.
The invention has the beneficial effects that:
according to the invention, the heat insulation groove is divided into the heat insulation cavities by sequentially connecting the transverse plate and the vertical plate, the heat insulation material is hung on the cover body through the connecting mechanism for filling the heat insulation groove, the circular furnace can be temporarily or long-term used as a furnace cover, the structure is simple, the installation is convenient, the heat insulation cavities divided by the transverse plate and the vertical plate are stable and reliable, the transverse plate and the vertical plate can support and buffer the heat insulation material when the heat insulation material is heated and expanded, the heat insulation material is effectively prevented from being heated and expanded, and the heat insulation material has higher thermal shock resistance, so that the heat insulation material has longer service life.
Drawings
FIG. 1 is a schematic view of a furnace cover structure of a circular furnace according to the present invention.
Fig. 2 is a schematic view of the connection mechanism of the present invention.
Figure 3 is a schematic view of an insulated tank of the present invention.
FIG. 4 is a schematic view of a baffle mechanism of the present invention.
The reference numerals in the figures illustrate: 1. a cover body; 11. hoisting the component; 12. a connecting frame; 13. a heat insulation tank; 14. a heat insulating chamber; 2. a heat insulating material; 21. refractory castable; 22. a primary fiber mat; 23. preserving heat of the castable; 24. a circular cylinder; 25. a side fibrous mat; 3. a partition plate mechanism; 31. a cross plate; 311. a vertical plate; 312. a sloping plate; 32. a riser; 33. anchoring the brick; 34. positioning the bulge; 35. an auxiliary fiber mat; 36. a fixing groove; 4. a connecting mechanism; 41. a connecting plate; 42. a clamp body; 43. a lifting hook; 44. a clamping groove; 45. a steel wire; 5. h-shaped steel; 51. i-steel.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific examples, which are not intended to be limiting, so that those skilled in the art will better understand the invention and practice it.
Referring to fig. 1-4, a circular furnace cover structure comprising:
the cover body 1 is provided with a heat insulation groove 13, and the cover body 1 has a circular structure;
the baffle mechanism 3 is arranged on the heat insulation groove 13, the baffle mechanism 3 comprises a plurality of transverse plates 31 and a plurality of vertical plates 32, and the transverse plates 31 and the vertical plates 32 are sequentially connected to divide the heat insulation groove 13 into a plurality of heat insulation cavities 14;
a heat insulating material 2 provided in the heat insulating chamber 14, and the heat insulating groove 13 is filled with the heat insulating material 2;
and the connecting mechanism 4 is arranged on the heat insulation material 2, and the heat insulation material 2 is hung on the cover body 1 through the connecting mechanism 4.
According to the invention, the heat insulation groove 13 is divided into the plurality of heat insulation cavities 14 through the transverse plate 31 and the vertical plate 32 which are sequentially connected, the heat insulation material 2 is hung on the cover body 1 through the connecting mechanism 4 to fill the heat insulation groove 13, the round furnace can be temporarily or long-term used as a furnace cover, the structure is simple, the installation is convenient, the heat insulation groove is stable and reliable, the transverse plate 31 and the vertical plate 32 are divided into the heat insulation cavities 14, when the heat insulation material 2 is heated and expanded, the transverse plate 31 and the vertical plate 32 support and buffer the heat insulation material, the heat insulation material 2 is effectively prevented from being heated and expanded, and the heat insulation material 2 has higher thermal shock resistance, so that the heat insulation material has longer service life.
The furnace cover comprises a supporting frame and a round cylinder 24, wherein the supporting frame is of a frame structure formed by continuously welding a plurality of H-shaped steels 5 and I-shaped steels 51, the supporting frame is arranged on the round cylinder 24, the edge of the supporting frame is fixedly connected with the round cylinder 24, a plurality of hoisting components 11 are arranged on the supporting frame, the round furnace cover is in driving connection with hoisting equipment through the hoisting components 11, and the round furnace cover is driven to move through the hoisting equipment.
Further, the cross plates 31 and the vertical plates 32 are fiber plates, the height of the fiber plates is the same as the thickness of the heat insulation material 2, and the heat insulation material 2 fills the expansion allowance generated by compressing the fiber plates between the adjacent heat insulation cavities 14 when being heated and expanded, so as to avoid the heat insulation material 2 from being heated and expanded.
Specifically, the heat-resistant castable in the heat-insulating material 2 is arranged at the bottom of the furnace cover, so that the heat-resistant castable is heated with the high temperature of the circular furnace inevitably, the heat-resistant material in the heat-insulating material 2 is divided by the fiber boards, a certain expansion allowance can be generated by compressing the fiber boards, when the fiber boards are heated and expanded, the heat-resistant materials on two sides of the fiber boards are expanded to fill the expansion allowance, the heat-insulating material 2 is effectively prevented from being heated and expanded, the furnace cover is stable and reliable, the installation is convenient, and the high thermal shock resistance is realized, so that the furnace cover has long service life, and the fiber boards can also play a long-term and effective caulking role.
Further, the fiber board comprises two vertical plates 311, the two vertical plates 311 are arranged in a staggered manner, the two vertical plates 311 are connected through an inclined plate 312, a Z-shaped structure is formed between the inclined plate 312 and the two vertical plates 311, the vertical plates 311 and the inclined plate 312 are of an integrated structure, and the inclined plate 312 is inclined in the direction of the cover body 1.
Specifically, a zigzag structure is formed between the inclined plate 312 and the two vertical plates 311, so that the heat insulation materials 2 on two sides of the fiber plate are staggered and separated along with the rise and fall of temperature in the use process, and the expansion areas of the heat insulation materials 2 can resist cracking or peeling or even chipping caused by thermal stress to a certain extent, so that the structural strength of the heat insulation materials 2 is high in the use process.
Further, the fiber board is formed by sequentially laminating a plurality of layers of fiber sheets, and the thickness of the fiber sheets is 1-3mm.
Specifically, the fiberboard is formed by sequentially laminating a plurality of layers of fiber sheets, so that the processing cost of the fiberboard can be reduced, and the thickness of the fiberboard can be effectively controlled, so that the thickness of the fiberboard can be changed according to the temperatures in different circular furnaces, and the application range is wide.
Further, the heat insulation material 2 comprises a refractory castable 21, a main fiber mat 22 is arranged on the refractory castable 21, and a heat preservation castable 23 is arranged on the main fiber mat 22.
Specifically, the fiber blanket, the heat-insulating castable 23 and the fiber plate are arranged on the fiber blanket, the heat-insulating castable and the fiber plate, so that shrinkage stress of the castable caused by sintering can be reduced, and the generation of larger cracks is reduced, so that the rapid cooling and rapid heating resistance and the impact toughness of the castable are improved.
Further, the thickness of the side fiber felt 25 between the refractory castable 21 and the inner side wall of the heat insulation groove 13 is 30-50mm.
Specifically, the side fiber felt 25 between the refractory castable 21 and the inner side wall of the heat insulation groove 13, the side fiber felt 25 can be connected with the refractory castable 21 and the heat insulation groove 13, so that the heat insulation material 2 is effectively prevented from being heated to be expanded, the heat insulation groove is stable and reliable, the installation is convenient, and the side fiber board can also play a longer-term effective caulking role.
Further, the connecting mechanism 4 comprises an anchor, the anchor is embedded in the heat insulation material 2, a frame is arranged on the cover body 1, a connecting plate 41 is arranged on the connecting frame 12, the connecting plate 41 is connected with the anchor through a fixing clamp, and the heat insulation material 2 is hung on the connecting plate 41 through a fixing frame on the anchor.
Specifically, the heat insulation material 2 is hung on the connecting plate 41 through the fixing frame on the anchoring piece, the furnace cover is convenient to detach, easy to maintain, good in sealing effect and more convenient to use; has the advantages of simple structure, convenient maintenance, low processing cost and the like.
Further, the anchoring member is an anchoring brick 33, a plurality of positioning protrusions 34 are arranged on the outer side face of the anchoring brick 33, the positioning protrusions 34 are clamped on the heat insulation material 2, a fixing groove 36 matched with the fixing clamp is arranged on the free end of the anchoring brick 33, and the fixing end of the fixing clamp is clamped on the fixing groove 36.
Further, the anchoring piece is coated with an auxiliary fiber felt 35, and the auxiliary fiber felt 35 is respectively connected with the refractory castable 21, the main fiber felt 22 and the heat insulation castable 23.
Specifically, the anchoring piece is coated by the auxiliary fiber felt 35, so that the extrusion of the refractory castable 21, the main fiber felt 22 and the heat-insulating castable 23 to the anchoring piece due to the heated expansion is effectively avoided, and the service life of the anchoring piece is ensured.
Further, the fixing clamp comprises two clamp bodies 42, one end of each clamp body 42 is provided with a clamping hook, the other end of each clamp body 42 is provided with a lifting hook 43, the clamping hooks are clamped on the anchoring pieces, the lifting hooks 43 are lifted on clamping grooves 44 of the connecting plates 41, the two clamp bodies 42 are arranged in an X-shaped structure, the middle parts of the two clamp bodies 42 are connected through steel wires 45, and the anchoring pieces are connected with the connecting plates 41 through the clamping hooks and the lifting hooks 43 on the two clamp bodies 42.
Specifically, the anchoring piece is connected with the connecting plate 41 through the clamping hooks and the lifting hooks 43 on the two clamping bodies 42, so that the occupied space of the assembled furnace cover is small, and the assembled furnace cover is suitable for being applied to a working environment with a small space and relatively concentrated equipment installation; 2. the automatic control can be used for accurately operating, and the two clamp bodies 42 are used for integrally assembling the heat insulation material 2, so that collision to the heat insulation groove 13 in the hoisting process is effectively avoided; the working intensity of operators is effectively reduced, accidental injuries of the operators in the process of carrying the furnace heat insulation material 2 are reduced, and safety accidents are reduced.
The above-described embodiments are merely preferred embodiments for fully explaining the present invention, and the scope of the present invention is not limited thereto. Equivalent substitutions and modifications will occur to those skilled in the art based on the present invention, and are intended to be within the scope of the present invention. The protection scope of the invention is subject to the claims.

Claims (10)

1. A circular furnace lid structure, comprising:
the cover body is provided with a heat insulation groove and is of a circular structure;
the baffle plate mechanism is arranged on the heat insulation groove and comprises a plurality of transverse plates and a plurality of vertical plates, and the transverse plates and the vertical plates are sequentially connected to divide the heat insulation groove into a plurality of heat insulation cavities;
the heat insulation material is arranged in the heat insulation cavity, and the heat insulation groove is filled by the heat insulation material;
the connecting mechanism is arranged on the heat insulation material, and the heat insulation material is hung on the cover body through the connecting mechanism.
2. The furnace cover structure of claim 1, wherein the cross plates and the vertical plates are fiber plates, the fiber plates have the same thickness as the heat insulation material, and the heat insulation material fills expansion allowance generated by compression of the fiber plates between adjacent heat insulation cavities when being heated and expanded, so as to avoid thermal expansion of the heat insulation material.
3. The furnace cover structure of a circular furnace according to claim 2, wherein the fiber plate comprises two vertical plates, the two vertical plates are arranged in a staggered manner and are connected through a sloping plate, a Z-shaped structure is formed between the sloping plate and the two vertical plates, the vertical plates and the sloping plate are of an integrated structure, and the sloping plate is inclined to the direction of the cover body.
4. The furnace cover structure of claim 2, wherein the fiber sheet is formed by sequentially laminating a plurality of fiber sheets, and the thickness of the fiber sheets is 1-3mm.
5. The circular furnace cover structure according to claim 1, wherein the heat insulating material comprises a refractory castable material, a main fiber mat is provided on the refractory castable material, and a heat insulating castable material is provided on the main fiber mat.
6. The furnace cover structure of claim 5, wherein the refractory castable and the side fiber mat between the inner side walls of the heat insulation trough have a thickness of 30-50mm.
7. The furnace cover structure of the circular furnace according to claim 5, wherein the connecting mechanism comprises an anchor piece, the anchor piece is embedded in the heat insulation material, the cover body is provided with a connecting plate, the connecting plate is connected with the anchor piece through a fixing clamp, and the heat insulation material is hung on the connecting plate through a fixing frame on the anchor piece.
8. The furnace cover structure of a circular furnace according to claim 7, wherein the anchoring piece is an anchoring brick, a plurality of positioning protrusions are arranged on the outer side face of the anchoring brick, the positioning protrusions are clamped on the heat insulation material, a fixing groove matched with the fixing clamp is arranged on the free end of the anchoring brick, and the fixing end of the fixing clamp is clamped on the fixing groove.
9. The furnace cover structure of claim 7, wherein the anchoring member is coated with an auxiliary fiber mat, and the auxiliary fiber mat is respectively connected with the refractory castable, the main fiber mat and the heat-insulating castable.
10. The furnace cover structure of a circular furnace according to claim 7, wherein the fixing clamp comprises two clamp bodies, one end of each clamp body is provided with a clamping hook, the other end of each clamp body is provided with a lifting hook, the clamping hooks are clamped on the anchoring pieces, the lifting hooks are lifted on clamping grooves of the connecting plates, the two clamp bodies are arranged in an X-shaped structure, the middle parts of the two clamp bodies are connected through steel wires, and the anchoring pieces are connected with the connecting plates through the clamping hooks and the lifting hooks on the two clamp bodies.
CN202310251525.1A 2023-03-16 2023-03-16 Furnace cover structure of circular furnace Pending CN116222227A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310251525.1A CN116222227A (en) 2023-03-16 2023-03-16 Furnace cover structure of circular furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310251525.1A CN116222227A (en) 2023-03-16 2023-03-16 Furnace cover structure of circular furnace

Publications (1)

Publication Number Publication Date
CN116222227A true CN116222227A (en) 2023-06-06

Family

ID=86587283

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310251525.1A Pending CN116222227A (en) 2023-03-16 2023-03-16 Furnace cover structure of circular furnace

Country Status (1)

Country Link
CN (1) CN116222227A (en)

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