CN214950621U - Heating furnace with silicon carbide-based composite ceramic refractory material lining - Google Patents
Heating furnace with silicon carbide-based composite ceramic refractory material lining Download PDFInfo
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- CN214950621U CN214950621U CN202121724775.5U CN202121724775U CN214950621U CN 214950621 U CN214950621 U CN 214950621U CN 202121724775 U CN202121724775 U CN 202121724775U CN 214950621 U CN214950621 U CN 214950621U
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Abstract
The utility model relates to a heating furnace technical field discloses a silicon carbide based composite ceramic refractory material lined heating furnace, including heating furnace casing, first anchor nail, second anchor nail and refractory lining, refractory lining passes through first anchor nail with second anchor nail with heating furnace shell connects, first anchor nail one end with heating furnace shell fixed connection, the other end stretches into refractory lining, second anchor nail one end is inlayed and is established in the heating furnace shell and with first anchor nail fixed connection, the second anchor nail other end stretches into refractory lining. The utility model provides a heating furnace with silicon carbide based composite ceramic refractory material lining, the anchor effect is showing, and the heating furnace casing is connected safe and reliable with refractory lining, effectively improves heating furnace refractory lining's high temperature mechanical strength, avoids refractory lining fracture that drops.
Description
Technical Field
The utility model relates to a heating furnace technical field, in particular to heating furnace with carborundum based composite ceramic refractory material lining.
Background
The heating furnace is a device for heating materials or workpieces to a rolling forging temperature, and is applied to various industries such as petroleum, chemical industry, metallurgy, machinery, heat treatment, surface treatment, building materials, electronics, materials, light industry, daily chemicals, pharmacy and the like. The heating furnace is operated at a high temperature, a lining is usually coated on the wall of the heating furnace, the heating furnace has the effect of heat insulation and high temperature resistance, and the heat insulation performance of the heating furnace is excellent according to the quality of the lining.
The four sides of the heating furnace main body are enclosed into a hearth by furnace walls up to, the furnace walls are made of I-shaped steel and other steel frames on which steel plates are laid, anchoring nails are distributed and welded on the steel plates, and heat-insulating and wear-resistant materials or heat-insulating module linings are poured between the anchoring nails. However, the existing anchoring nail is easy to break, so that the surface of the lining falls off, the temperature of the wall of the heating furnace rises, and the energy consumption is increased; in order to improve the high temperature resistance of the heating furnace lining, the existing heating furnace lining is mainly made of ceramic materials, but the existing single-phase ceramic material lining has large brittleness, poor toughness and low strength in high-temperature operation.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a defect in prior art is aimed at overcoming, provides a heating furnace with carborundum based composite ceramic refractory material lining, and the anchor effect is showing, and the heating furnace casing is connected safe and reliable with refractory lining, effectively improves heating furnace refractory lining's high temperature mechanical strength, avoids refractory lining fracture of coming off.
The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides a carborundum based composite ceramic refractory material lined heating furnace, includes heating furnace casing, first anchor nail, second anchor nail and refractory lining, refractory lining passes through first anchor nail with the second anchor nail with heating furnace casing connects, first anchor nail one end with heating furnace casing fixed connection, the other end stretches into refractory lining, second anchor nail one end is inlayed and is established in the heating furnace casing and with first anchor nail fixed connection, the second anchor nail other end stretches into refractory lining.
Through adopting above-mentioned technical scheme, the refractory lining is connected with heating furnace shell through first anchor nail and second anchor nail, simple structure, the construction of being convenient for, first anchor nail and second anchor nail all are connected with heating furnace shell and refractory lining, and first anchor nail and second anchor nail fixed connection for the anchor structural connection safe and reliable of refractory lining, the refractory lining combines inseparabler with heating furnace shell simultaneously, prevents that the refractory lining from droing.
As a further setting of the utility model, first anchor nail is "L" type, the horizontal part of first anchor nail with heating furnace shell fixed connection, the vertical portion of first anchor nail stretches into the refractory lining.
As a further setting of the utility model, second anchor nail includes dead lever and branch pole, the dead lever is located one end level in the heating furnace casing is provided with the connecting rod, the connecting rod with dead lever integrated into one piece, the connecting rod is inserted and is established fixedly in the through-hole of first anchor nail lower part, the dead lever stretches into the one end of refractory lining is provided with rings, branch pole is "V" type and middle part and passes rings.
As a further setting of the utility model, the branch pole about the extension line symmetry setting of dead lever, the branch pole shape is the wave.
As a further setting of the utility model, still include anchor assembly, anchor assembly is the door frame shape, anchor assembly is including hanging section and two anchor sections, the anchor section with hang one side fixed connection of section, hang the opposite side of section with heating furnace shell fixed connection, the anchor section stretches into refractory lining.
As a further setting of the utility model, the side of anchor section evenly is provided with a plurality of boss, the shape of boss is isosceles trapezoid.
As a further arrangement of the present invention, the refractory lining is doped with La2O3The cordierite-bonded silicon carbide ceramic refractory lining.
The utility model has the advantages that:
1. the fire-resistant lining is connected with the heating furnace shell through the first anchoring nail and the second anchoring nail, and is simple in structure and convenient to construct, the first anchoring nail and the second anchoring nail are connected with the heating furnace shell and the fire-resistant lining, and the first anchoring nail and the second anchoring nail are fixedly connected, so that the anchoring structure of the fire-resistant lining is connected safely and reliably, meanwhile, the fire-resistant lining is combined with the heating furnace shell more tightly, and the fire-resistant lining is prevented from falling off.
2. The first anchoring nail is fixedly connected with the heating furnace shell through the horizontal part, so that the contact area is increased, the connection between the first anchoring nail and the heating furnace shell is firmer, the connecting rod of the second anchoring nail is in clearance fit with the through hole at the lower part of the first anchoring nail, the connecting rod of the second anchoring nail is conveniently inserted and fixed in the through hole of the first anchoring nail, the structure is simple, the fracture and the separation are not easy to occur, the connection between the first anchoring nail and the second anchoring nail is more stable, and the connection firmness between the refractory lining and the heating furnace shell is increased; through setting up rings, make the branch pole middle part pass rings and the dead lever is constituteed a whole, do not have the welding point, solved traditional anchor nail solder joint fracture problem under the high temperature condition, ensure anchor nail sound construction, avoid refractory lining to drop.
3. The branch rods are symmetrically arranged relative to the extension line of the fixed rod, so that the overall structural strength of the anchoring nail is improved, and the branch rods are wavy, so that the occlusion area and the friction force between the branch rods and the refractory lining can be increased, and the suspension and support effects on the refractory lining are improved; the boss increases the contact area and the friction force between the anchoring section and the refractory lining, so that the refractory lining and the anchoring piece are combined more tightly, and the refractory lining is prevented from falling off.
4. Cordierite as a stable compound in a silicate system and prepared into a composite ceramic substrate with silicon carbide by utilizing the high-temperature stability of the cordierite, can effectively improve the high-temperature mechanical strength of the refractory material lining of the heating furnace, and La2O3As a close-packed hexagonal lanthanide rare earth element, the rare earth element can effectively inhibit the generation of cristobalite, promote the low-temperature synthesis of cordierite phase and greatly relieve the short plate with low toughness of the ceramic substrate.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural view of a furnace with a silicon carbide-based composite ceramic refractory lining according to the present invention;
FIG. 2 is a schematic view of the first and second anchoring nails and anchoring member of a furnace lined with silicon carbide-based composite ceramic refractory according to the present invention;
fig. 3 is a left side view schematic structure diagram of the second anchoring nail of the heating furnace with the silicon carbide-based composite ceramic refractory lining of the utility model.
In the figure, 1, a furnace shell; 2. a refractory lining; 3. a first anchor nail; 4. a second anchoring nail 41, a fixed rod 42, a branch rod 43, a connecting rod 44 and a hanging ring; 5. anchor member 51, hanging section 52, anchoring section 53, boss.
Detailed Description
The technical solution of the present invention will be clearly and completely described below with reference to the specific embodiments. It is obvious that the described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1 and 2, a silicon carbide-based composite ceramic refractory lining's heating furnace, including heating furnace housing 1, first anchor nail 3, second anchor nail 4 and refractory lining 2, refractory lining 2 is connected with heating furnace housing 1 through first anchor nail 3 and second anchor nail 4, 3 one end of first anchor nail and heating furnace housing 1 fixed connection, the other end stretches into refractory lining 2, 4 one ends of second anchor nail are inlayed and are established in heating furnace housing 1 and with 3 fixed connection of first anchor nail, the 4 other ends of second anchor nail stretch into refractory lining 2. Refractory lining 2 is connected with heating furnace casing 1 through first anchor nail 3 and second anchor nail 4, simple structure, the construction of being convenient for, first anchor nail 3 and second anchor nail 4 all are connected with heating furnace casing 1 and refractory lining 2, and first anchor nail 3 and 4 fixed connection of second anchor nail for the anchor structural connection safe and reliable of refractory lining 2, refractory lining 2 combines inseparabler with heating furnace casing 1 simultaneously, prevents that refractory lining 2 from droing.
Specifically, first anchor nail 3 is "L" type, and the horizontal part and the heating furnace housing 1 fixed connection of first anchor nail 3, the vertical portion of first anchor nail 3 stretches into refractory lining 2. First anchor nail 3 has increased area of contact through horizontal part and heating furnace casing 1 fixed connection for be connected more firmly between first anchor nail 3 and the heating furnace casing 1.
Referring to fig. 2, the second anchoring nail 4 includes a fixing rod 41 and a branch rod 42, a connecting rod 43 is horizontally disposed at one end of the fixing rod 41 located in the heating furnace casing 1, the connecting rod 43 and the fixing rod 41 are integrally formed, the connecting rod 43 is inserted and fixed in a through hole at the lower portion of the first anchoring nail 3, a hanging ring 44 is disposed at one end of the fixing rod 41 extending into the refractory lining 2, and the branch rod 42 is V-shaped and the middle portion thereof passes through the hanging ring 44. The connecting rod 43 of the second anchoring nail 4 is in clearance fit with the through hole at the lower part of the first anchoring nail 3, so that the connecting rod 43 of the second anchoring nail 4 is conveniently inserted and fixed in the through hole of the first anchoring nail 3, the structure is simple, and the fracture and the separation are not easy to occur, so that the connection between the first anchoring nail 3 and the second anchoring nail 4 is more stable, and the connection firmness between the refractory lining 2 and the heating furnace shell 1 is improved; through setting up rings 44, make branch 42 middle part pass rings 44 and constitute a whole with dead lever 41, do not have the welding point, solved traditional anchor nail welding point fracture problem under the high temperature condition, ensure anchor nail sound construction, avoid refractory lining 2 to drop.
Specifically, the branch bars 42 are symmetrically arranged about an extension line of the fixing bar 41, and the branch bars 42 are wave-shaped. The structural design of the branch supporting rod 42 improves the integral structural strength of the anchoring nail, and the branch supporting rod 42 is wavy, so that the engagement area and the friction force between the branch supporting rod 42 and the refractory lining 2 can be increased, and the suspension and support effects on the refractory lining 2 are improved.
Referring to fig. 2, the heat insulation structure further comprises an anchoring part 5, wherein the anchoring part 5 is in a shape of a door frame, the anchoring part 5 comprises a hanging section 51 and two anchoring sections 52, the anchoring sections 52 are fixedly connected with one side of the hanging section 51, the other side of the hanging section 51 is fixedly connected with the heating furnace shell 1, the anchoring sections 52 extend into the refractory lining 2, a plurality of bosses 53 are uniformly arranged on the side surfaces of the anchoring sections 52, and the bosses 53 are in an isosceles trapezoid shape. The arrangement of the anchoring piece 5 further increases the safety and reliability of the connection between the heating furnace shell 1 and the fire-resistant lining 2, and under the combined action of the first anchoring nail 3 and the second anchoring nail 4, the connection between the fire-resistant lining 2 and the heating furnace shell 1 is ensured to be tighter, the arrangement of the boss 53 increases the contact area and the friction force between the anchoring section 52 and the fire-resistant lining 2, so that the combination of the fire-resistant lining 2 and the anchoring piece 5 is tighter, and the falling of the fire-resistant lining 2 is prevented.
In particular, the refractory lining 2 is doped with La2O3The cordierite-bonded silicon carbide ceramic refractory lining. Cordierite as a stable compound in a silicate system and prepared into a composite ceramic substrate with silicon carbide by utilizing the high-temperature stability of the cordierite, can effectively improve the high-temperature mechanical strength of the refractory material lining of the heating furnace, and La2O3As a close-packed hexagonal lanthanide rare earth element, the rare earth element can effectively inhibit the generation of cristobalite, promote the low-temperature synthesis of cordierite phase and greatly relieve the short plate with low toughness of the ceramic substrate.
Claims (7)
1. A silicon carbide-based composite ceramic refractory material lining heating furnace is characterized in that: including heating furnace casing (1), first anchor nail (3), second anchor nail (4) and refractory lining (2), refractory lining (2) are passed through first anchor nail (3) with second anchor nail (4) with heating furnace casing (1) is connected, first anchor nail (3) one end with heating furnace casing (1) fixed connection, the other end stretches into refractory lining (2), second anchor nail (4) one end is inlayed and is established in heating furnace casing (1) and with first anchor nail (3) fixed connection, second anchor nail (4) other end stretches into refractory lining (2).
2. The silicon carbide-based composite ceramic refractory-lined heating furnace according to claim 1, wherein: the first anchoring nails (3) are L-shaped, the horizontal parts of the first anchoring nails (3) are fixedly connected with the heating furnace shell (1), and the vertical parts of the first anchoring nails (3) extend into the refractory lining (2).
3. The silicon carbide-based composite ceramic refractory-lined heating furnace according to claim 2, wherein: second anchor nail (4) are including dead lever (41) and branch pole (42), dead lever (41) are located one end level in heating furnace casing (1) is provided with connecting rod (43), connecting rod (43) with dead lever (41) integrated into one piece, connecting rod (43) are inserted and are established fixedly in the through-hole of first anchor nail (3) lower part, dead lever (41) stretch into the one end of refractory lining (2) is provided with rings (44), divide branch pole (42) to be "V" type and middle part to pass rings (44).
4. The silicon carbide-based composite ceramic refractory-lined heating furnace according to claim 3, wherein: the branch supporting rods (42) are symmetrically arranged relative to the extension line of the fixing rod (41), and the branch supporting rods (42) are wavy.
5. The silicon carbide-based composite ceramic refractory-lined heating furnace according to claim 1, wherein: still include anchor assembly (5), anchor assembly (5) are the door frame shape, anchor assembly (5) are including hanging section (51) and two anchor sections (52), anchor section (52) with hang one side fixed connection of section (51), hang the opposite side of section (51) with heating furnace casing (1) fixed connection, anchor section (52) stretch into refractory lining (2).
6. The silicon carbide-based composite ceramic refractory-lined heating furnace according to claim 5, wherein: the side of anchor section (52) evenly is provided with a plurality of boss (53), the shape of boss (53) is isosceles trapezoid.
7. The silicon carbide-based composite ceramic refractory-lined heating furnace according to any one of claims 1 to 6, wherein: the refractory lining (2) is doped with La2O3The cordierite-bonded silicon carbide ceramic refractory lining.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121724775.5U CN214950621U (en) | 2021-07-27 | 2021-07-27 | Heating furnace with silicon carbide-based composite ceramic refractory material lining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121724775.5U CN214950621U (en) | 2021-07-27 | 2021-07-27 | Heating furnace with silicon carbide-based composite ceramic refractory material lining |
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| Publication Number | Publication Date |
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| CN214950621U true CN214950621U (en) | 2021-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121724775.5U Active CN214950621U (en) | 2021-07-27 | 2021-07-27 | Heating furnace with silicon carbide-based composite ceramic refractory material lining |
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| CN (1) | CN214950621U (en) |
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2021
- 2021-07-27 CN CN202121724775.5U patent/CN214950621U/en active Active
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