CN111439994B - Slag runner for iron works and high-strength ceramic wear-resistant castable working lining thereof - Google Patents
Slag runner for iron works and high-strength ceramic wear-resistant castable working lining thereof Download PDFInfo
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- CN111439994B CN111439994B CN202010427318.3A CN202010427318A CN111439994B CN 111439994 B CN111439994 B CN 111439994B CN 202010427318 A CN202010427318 A CN 202010427318A CN 111439994 B CN111439994 B CN 111439994B
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/10—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminium oxide
- C04B35/101—Refractories from grain sized mixtures
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3217—Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
- C04B2235/3222—Aluminates other than alumino-silicates, e.g. spinel (MgAl2O4)
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3418—Silicon oxide, silicic acids, or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/42—Non metallic elements added as constituents or additives, e.g. sulfur, phosphor, selenium or tellurium
- C04B2235/428—Silicon
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
- C04B2235/52—Constituents or additives characterised by their shapes
- C04B2235/5208—Fibers
- C04B2235/5216—Inorganic
- C04B2235/524—Non-oxidic, e.g. borides, carbides, silicides or nitrides
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
- C04B2235/9607—Thermal properties, e.g. thermal expansion coefficient
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
- C04B2235/9607—Thermal properties, e.g. thermal expansion coefficient
- C04B2235/9615—Linear firing shrinkage
Abstract
The invention relates to the field of refractory material application, in particular to a slag runner for iron works and a high-strength ceramic wear-resistant castable working lining thereof, which comprises a steel shell, wherein the steel shell is internally provided with the high-strength ceramic wear-resistant castable working lining, a launder is arranged in the middle of the upper end of the high-strength ceramic wear-resistant castable working lining, the inner wall of the steel shell is uniformly provided with a plurality of anchoring hooks, the cross section of the steel shell is U-shaped, the upper ends of two wings of the steel shell are provided with outward bending parts, the inner side wall of the steel shell is provided with a cooling pipe, and the cooling pipe penetrates through the steel shell to be connected with a refrigerant circulating device.
Description
Technical Field
The invention relates to the application field of refractory materials, in particular to a slag runner for iron works and a high-strength ceramic wear-resistant castable working lining thereof.
Background
With the progress of the iron making process, the tapping capacity efficiency of the blast furnace is continuously improved, and the requirements on the service performance of refractory materials for a cast house are also higher and higher. In order to meet the on-site use requirements of the water granulated slag ditch, the original heat-resistant concrete and cement castable are developed into various construction forms of products such as the existing low cement castable, quick-drying castable and the like. Along with the optimization and improvement of refractory materials for the tapping channel and the slag channel, the construction and maintenance of the tapping channel and the slag channel are safer and more convenient, and the service life is longer. According to the rapid development of steel smelting technology, the requirements on refractory materials of blast furnace casting houses and slag runner working linings are higher, and the problems that the slag runner working linings are influenced by high-temperature slag thermal shock and water cooling, are fast in loss, long in maintenance period and influence on normal production of the blast furnace and the overall service life of the slag runner are particularly needed to be solved. Under such circumstances, development of a product having high bonding strength, excellent thermal shock stability, excellent wear resistance, convenient construction and long life has been eagerly demanded.
The existing refractory technology for the water slag ditch is provided with a castable with high thermal stability, which is mainly prepared from superfine high-alumina clinker, brown corundum, silicon carbide, compact corundum, alumina hollow spheres and the like, is a high-alumina ceramic material, and has high thermal stability but poor wear resistance; the fiber reinforced castable is mainly prepared from superfine high-alumina clinker, brown corundum, silicon carbide, long and short carbon fibers and the like, can effectively improve the wear resistance, and has shorter service life.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide the slag runner for the iron works and the high-strength ceramic wear-resistant castable working lining thereof, which have the advantages of simple structure, easiness in implementation and high working stability.
The invention is realized by the following technical scheme: the utility model provides an iron works grain slag ditch, includes the steel shell, be provided with the wear-resisting castable work lining of high strength pottery in the steel shell, wear-resisting castable work lining upper end intermediate position of high strength pottery is provided with the chute, the steel shell inner wall evenly is provided with a plurality of anchor hooks, the steel shell cross section is the U type, steel shell both wings upper end is provided with outside kink, the steel shell inside wall is provided with the cooling tube, the cooling tube passes the steel shell and is connected with refrigerant circulating device.
Further, a plurality of anchor hooks are arranged in rows and columns, each anchor hook comprises a mounting disc, each mounting disc is a circular disc, 3-4 groups of anchor rods are uniformly arranged at the edge positions of each mounting disc, any one group of anchor rods comprises two anchor rod bodies, the lower ends of the anchor rod bodies are fixedly welded with the mounting discs, positioning holes corresponding to the anchor rod bodies are formed in the mounting discs, and the lower ends of the anchor rod bodies are bent and inserted into the positioning holes.
Further, the upper ends of the two anchor rods are crossed to form an inclined branch.
Further, the cooling tube is connected with the anchor rod body, the anchor rod body comprises a supporting anchor rod body for supporting the cooling tube and a pressing anchor rod body for fixing the cooling tube, the upper ends of the corresponding pressing anchor rod bodies are connected through connecting rods, a cooling tube channel is formed between the connecting rods and the pressing anchor rod body as well as between the connecting rods and the supporting anchor rod body, and the cooling tube penetrates through the cooling tube channel.
Further, a plurality of anchor hooks are arranged in rows and columns, each anchor hook comprises a mounting plate, an inward anchor plate is arranged on each mounting plate, through holes are formed in each anchor plate, and the cooling pipes penetrate through the through holes.
A high-strength ceramic wear-resistant castable working lining for a slag runner of an iron-mill is prepared from the following materials, by weight, 30-45 parts of superfine alumina clinker particles, 20-35 parts of brown alumina particles, 10-20 parts of alpha-alumina micropowder, 8-15 parts of fused white corundum powder, 5-10 parts of silica micropowder, 10-25 parts of aluminate cement, 1-3 parts of steel fibers, 0.5-1.5 parts of a composite dispersing agent and 25-30 parts of a silica sol binder
Further, the composite dispersing agent consists of sodium tripolyphosphate and sodium hexametaphosphate, and the weight ratio of the sodium tripolyphosphate to the sodium hexametaphosphate is 3-5:5-7.
Further, the granularity of the special-grade bauxite chamotte particles is 3-5 mm, and the content of alumina in the special-grade bauxite chamotte particles is more than or equal to 88 percent.
Further, the granularity of the alpha-alumina micropowder is less than 2 mu m, and the content of the alpha-alumina micropowder alumina is more than or equal to 99 percent.
The invention has the beneficial effects that: the steel shell is internally provided with a working lining, the middle position of the upper end of the working lining is provided with a launder, the inner wall of the steel shell is uniformly provided with a plurality of anchoring hooks, the working lining can be shaped through the steel shell, the working lining is convenient to pour, the anchoring hooks are arranged, the steel shell and the working lining can be positioned, separation between the steel shell and the working lining can be avoided, the working stability of the water slag ditch is high, the overall working stability is high, a cooling pipe is arranged, and the steel shell can be effectively protected; the cooling pipe is supported by the anchoring hooks, so that the installation is convenient.
Drawings
FIG. 1 is a schematic diagram of a water slag ditch structure of an iron mill;
FIG. 2 is a schematic illustration of the connection of the anchoring hooks to the steel shell of example 1;
FIG. 3 is a schematic view showing the construction of the mounting plate in examples 1-3;
FIG. 4 is a schematic illustration of the connection of the anchor body to the mounting plate of example 1;
FIG. 5 is a schematic view of a temperature detection device installation position;
FIG. 6 is a schematic cross-sectional view of the connection between the temperature measuring plate and the steel shell;
FIG. 7 is a schematic illustration of the connection of a temperature measurement plate to a platen;
FIG. 8 is a schematic view showing the connection relationship between the anchor body and the cooling tube in example 2;
FIG. 9 is a schematic view showing the connection relationship between the anchor body and the cooling tube in example 3;
FIG. 10 is a schematic view showing the connection relationship between the anchoring hooks and the steel shell, and the cooling tube in example 4;
FIG. 11 is an enlarged view of a part of the connection relationship between the anchoring hooks and the steel shell, and the cooling tube in example 4;
wherein: the high-strength ceramic wear-resistant casting material comprises a 1-steel shell, a 2-bent plate, a 3-high-strength ceramic wear-resistant casting material working lining, a 4-launder, a 5-lifting lug, a 6-anchoring hook, a 601-mounting plate, a 602-locating hole, a 603-anchor rod body, a 604-supporting anchor rod body, a 605-compacting anchor rod body, a 606-connecting rod, a 607-anchoring plate, a 608-through hole, a 7-pressing plate, an 8-stud, a 9-cable, a 10-detecting plate, a 11-groove, a 12-thermocouple and a 13-cooling pipe.
Detailed Description
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the following description of the various embodiments of the present invention,
the steel shell is made of a high-temperature-resistant steel plate with the thickness of 20-30mm, and the specific brand is 0Cr25Ni20;
the anchoring hook is made of 45# steel;
the composite dispersing agent consists of sodium tripolyphosphate and sodium hexametaphosphate, and the weight ratio of the sodium tripolyphosphate to the sodium hexametaphosphate is 3-5:5-7;
the granularity of the special-grade bauxite chamotte particles is 3-5 mm, the content of alumina in the special-grade bauxite chamotte particles is more than or equal to 88 percent, the special-grade bauxite chamotte particles are characterized in that the special-grade bauxite chamotte particles are adopted as large particles, the characteristics of high thermal shock stability and toughness strength of the special-grade bauxite chamotte are brought into play, the stability of the skeleton structure of the product is improved, and the standard YB/T5179-2005, the brand GL-88A of Shanxi spring certain factories are adopted;
the granularity of the alpha-alumina micropowder is less than 2 mu m, the content of the alpha-alumina micropowder alumina is more than or equal to 99 percent, and the alpha-alumina micropowder is active alumina micropowder produced in China, and has the characteristics of high purity, stable high-temperature performance, good dispersion and flow performance, and sintering strength promotion, and adopts standard YS/T89-1995 (2005) with the mark of AN-03;
the granularity of the fused white corundum powder is less than 0.044mm, the total content of alumina in the fused white corundum powder is more than or equal to 99 percent, and the high-temperature bonding strength of the product is improved and the service life is prolonged due to the high purity and less impurities, and the product is produced in China by adopting the standard GB/T2479-2008;
the granularity of the silicon micro powder is less than 0.5 mu m, the silicon dioxide content in the silicon micro powder is more than or equal to 95 percent, and the silicon micro powder has the characteristics of excellent dispersion performance and fluidity, improves the construction rheological property of casting materials, improves the bonding strength of products, and adopts standard GB/T21236-2007 and domestic products;
the granularity of the aluminate cement is less than 0.045mm, the total content of alumina in the aluminate cement is more than or equal to 70 percent, the total content of silicon oxide is less than or equal to 1 percent, the total content of ferric oxide is less than or equal to 0.7 percent, the initial setting time is not earlier than 30 minutes, and the final setting time is not later than 6 hours; standard GB201-2000, brand CA-70;
the steel drill is 466# heat-resistant steel with the length of 30-35 mm;
the silica sol binder is liquid and consists of nano-scale raw materials with granularity less than 0.1 mu m, the content of silicon oxide is more than or equal to 30%, the pH value is 9-9.5, the brand is TS-30, the viscosity is less than or equal to 6 (25 ℃/Pa.s), and the density is 1.15-1.17 (25 ℃);
the granularity of brown corundum comprises two types of 1mm to 3mm and 0.1mm to 1mm, the alumina content in the brown corundum is more than or equal to 95%, the middle and small particles are combined, the advantages of high filling and density of the brown corundum, good wear resistance, excellent anti-scouring property and the like are utilized, and the standard GB/T2478-2008 is adopted, and domestic products are adopted;
in examples 5-8, the preparation method of the high-strength ceramic wear-resistant castable working lining for the water slag ditch of the iron works is as follows,
weighing raw materials, firstly mixing superfine bauxite chamotte particle raw materials, brown corundum particle raw materials, alpha-alumina micro powder, electric smelting white corundum powder and silicon micro powder, sequentially adding aluminate cement, steel fibers and a composite dispersing agent mixture into a high-speed mixer, stirring for 5 minutes, uniformly mixing the materials to obtain a wear-resistant self-flowing material product A, weighing, filling into a moisture-proof packaging bag, sealing, storing in a dry place for later use; the silica sol binder is hermetically packaged by a plastic barrel for 30 kg/barrel, and is hermetically stored in a dry place for later use, and when the silica sol binder is used, the wear-resistant self-flowing material product A and the silica sol binder are mixed and poured, so that the silica sol binder is convenient to use, can promote the rapid coagulation of materials, is high in strength and wear resistance, has strong slag resistance and thermal scouring resistance, is good in thermal shock resistance stability, is quick in site construction, and can effectively prolong the service life of a working lining by more than 30%.
Example 1
As shown in fig. 1-7, an iron works water slag ditch, including steel casing 1, the steel casing cross section is the U type, steel casing both sides wall outwards inclines 15, steel casing upper end integrated into one piece has outside bending plate 2, bending plate is horizontal, can play fine supporting role to the steel casing both wings, and then avoid the steel casing to warp, can also provide the plane at the in-process of weaving the mould, after pouring the working lining, can also protect temperature detection component through the bending plate direction strickle, the lug hole has been processed on the bending plate, conveniently install lug 5, install temperature detection component on the steel casing outer wall, the temperature detection component includes a plurality of pick-up plates 10 of installing along steel casing length direction, the interval between the adjacent pick-up plates is 300mm, the pick-up plate is aluminum plate, the pick-up plate is outer to be attached with clamp plate 7, the clamp plate is the steel sheet, the welding has outside double-screw bolt 8 on the steel casing outer wall, the last processing of steel sheet has the bolt hole with stud matched with, in the surface of clamp plate is attached with 12, the thermocouple matched with recess 11, the cable 9 of thermocouple is worn out outwards through the clamp plate bottom, when can carry out temperature detection to the temperature detection plate, and the temperature detection plate is high-efficient, and the temperature detection plate is in the steel casing, and the thermal coupling is high-efficient, the temperature detection plate is attached to the steel casing.
The steel shell is internally paved with a high-strength ceramic wear-resistant castable working lining 3, a material with national standard number JC/T499-92 (96) is selected, launder 4 is integrally formed at the middle position of the upper end of the high-strength ceramic wear-resistant castable working lining, a plurality of anchoring hooks 6 are uniformly arranged on the inner wall of the steel shell, the anchoring hooks are distributed in rows and columns, each anchoring hook comprises a mounting plate 601, the mounting plate is a circular plate, 4 groups of anchor rods are uniformly arranged at the edge positions of the mounting plate, any one group of anchor rods comprises two anchor rod bodies 603, the lower ends of the anchor rod bodies are fixedly welded with the mounting plate, positioning holes 602 corresponding to the anchor rod bodies are formed in the mounting plate, the lower ends of the anchor rod bodies are bent and inserted in the positioning holes, the mounting plate is convenient to install and high in connection stability, the upper ends of the two anchor rod bodies are crossed to form oblique branches, the anchor rod bodies extend into the high-strength ceramic wear-resistant castable working lining, the inner wall is effectively prevented from sliding due to the fact that the water slag channel is in the working process, the produced friction force pushes the working lining, the inner side wall of the cooling water channel is used for cooling water channel, the inner wall of the cooling water channel is provided with a cooling water circulating cooling water channel, the cooling water channel is connected with a cooling water cooling channel through a cooling tube circulation device, and a cooling water cooling tube is connected with the cooling tube through a cooling tube circulation tube, and a cooling tube is used for cooling water cooling tube is used for cooling the cooling tube, and a cooling tube is connected with the cooling tube, and a cooling tube is in a cooling tube is used for cooling the cooling device.
Example 2
As shown in fig. 8, in an iron works water slag ditch, unlike embodiment 1, the cooling pipe is connected with the anchor rod body, the anchor rod body comprises a support anchor rod body 604 for supporting the cooling pipe and a compression anchor rod body 605 for fixing the cooling pipe, the upper ends of the corresponding compression anchor rod bodies are connected through arc-shaped connecting rods 606, cooling pipe channels are formed between the connecting rods and the compression anchor rod bodies and between the connecting rods and the support anchor rod bodies, the cooling pipe passes through the cooling pipe channels, in this embodiment, the connecting rods and the compression anchor rod bodies are integrally formed, the manufacture is convenient, two groups of opposite anchor rods are support anchor rod bodies, the outer anchor rod bodies in the other two groups of anchor rods are compression anchor rod bodies, the cooling pipe can be conveniently fixed, and meanwhile, the cooling pipe is supported, so that the cooling pipe is wrapped when the high-strength ceramic wear-resistant castable working lining is laid.
Example 3
As shown in fig. 9, unlike embodiment 2, the inner anchor rod body in each group of anchor rods is a supporting anchor rod body 604, the outer anchor rod body is a compressing anchor rod body 605, two adjacent compressing anchor rod bodies are connected through an arc connecting rod 606, the compressing anchor rod bodies and the arc connecting rod are integrally formed, the anchoring hook provided in this embodiment comprises two connecting rods, and can be used for fixing a cooling tube more stably, which has the disadvantages of increased diameter of the mounting disc and increased material.
Example 4
As shown in fig. 10-11, unlike the embodiments 1-3, the mounting plate is provided with an inward anchor plate 607, the anchor plate is provided with a through hole 608, the cooling pipe passes through the through hole, for convenience in manufacturing, the anchor hook is cut by a rectangular pipe, one side surface of the anchor hook is welded with the steel shell to form the mounting plate, two opposite side walls form the anchor plate, the through hole is processed, the last side wall forms the reinforcing plate, and compared with the embodiments 1-3, the processing is more convenient, the connection stability is higher, and the high-strength ceramic wear-resistant castable working liner is filled in the anchor hook.
Example 5
The iron works water slag runner, unlike other examples, is made of the following raw materials, special alumina clinker particle 40Kg, brown alumina particle 28Kg, alpha-alumina micropowder 13Kg, electric smelting white corundum powder 11Kg, silica micropowder 8Kg, aluminate cement 21Kg, steel fiber 2.4Kg, composite dispersant 0.9Kg, silica sol binder 27Kg.
Example 6
The iron works water slag runner, unlike other examples, is made of the following raw materials, special alumina clinker particle 33Kg, brown alumina particle 32Kg, alpha-alumina micropowder 17Kg, electric smelting white corundum powder 13.5Kg, silica micropowder 5Kg, aluminate cement 15Kg, steel fiber 1.5Kg, composite dispersant 1.2Kg, silica sol binder 26Kg.
Example 7
The iron works water slag runner, unlike other examples, is made of the following raw materials, special alumina clinker particle 45Kg, brown alumina particle 22Kg, alpha-alumina micropowder 18Kg, electric smelting white corundum powder 15Kg, silica micropowder 10Kg, aluminate cement 25Kg, steel fiber 3Kg, composite dispersant 1.5Kg, silica sol binder 30Kg.
Example 8
The iron works water slag runner, unlike other examples, is made of the following raw materials, special alumina clinker particle 30Kg, brown alumina particle 35Kg, alpha-alumina micropowder 20Kg, electric smelting white corundum powder 8Kg, silica micropowder 10Kg, aluminate cement 25Kg, steel fiber 1Kg, composite dispersant 0.5Kg, silica sol binder 28Kg.
The performance detection parameters of the high-strength ceramic wear-resistant castable working liners obtained in the examples 1 and 5-8 are shown in the attached table 1.
Table 1
In the attached table 1, the first compressive strength and the first flexural strength are measured values at normal temperature after drying at 110 ℃ for 24 hours; the second compressive strength and the second flexural strength are detection values at normal temperature after being burned for 3 hours at 1100 ℃; the change rate of the permanent line after heating is 1100 ℃ multiplied by 3 h; the thermal shock resistance is 1100 ℃ water cooling times, and the detection standard is the corresponding national standard or industry standard of the refractory material.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present invention, and although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present invention.
Claims (5)
1. The utility model provides an iron works water slag ditch, its characterized in that includes the steel shell, be provided with the wear-resisting castable work lining of high strength pottery in the steel shell, wear-resisting castable work lining upper end intermediate position of high strength pottery is provided with the chute, the steel shell inner wall evenly is provided with a plurality of anchor hooks, the steel shell cross section is U-shaped, steel shell both wings upper end is provided with outside kink, the steel shell inside wall is provided with the cooling tube, the cooling tube is connected with refrigerant circulating device through the steel shell, a plurality of anchor hooks are listed as the setting in a row, the anchor hook includes the mounting disc, the mounting disc is the circular disc, mounting disc border position evenly is provided with 3-4 anchor bars, and arbitrary anchor bar of group includes two stock bodies, stock body lower extreme and mounting disc welded fastening are provided with the locating hole that corresponds with the stock body, stock body lower extreme kink and cartridge are in the locating hole, the cooling tube is connected with the body, the stock body is including the support anchor body that is used for supporting the cooling tube, and is used for fixing the cooling tube's the stock body, and is connected through the connecting rod body compression between the corresponding cooling tube compression joint rod body, compression joint rod passes between the cooling tube compression joint rod,
the high-strength ceramic wear-resistant castable working lining is prepared from the following materials, by weight, 30-45 parts of superfine alumina clinker particles, 20-35 parts of brown alumina particles, 10-20 parts of alpha-alumina micropowder, 8-15 parts of fused white corundum powder, 5-10 parts of silica micropowder, 10-25 parts of aluminate cement, 1-3 parts of steel fibers, 0.5-1.5 parts of a composite dispersing agent and 25-30 parts of silica sol bonding agent.
2. The iron works water slag runner according to claim 1, wherein a plurality of anchoring hooks are arranged in a row and column, the anchoring hooks comprising a mounting plate on which an inward anchoring plate is provided, through holes being provided on the anchoring plate, the cooling pipes passing through the through holes.
3. The iron works water slag runner according to claim 1, wherein the composite dispersant consists of sodium tripolyphosphate and sodium hexametaphosphate in a weight ratio of 3-5:5-7.
4. The iron works water slag runner according to claim 1, wherein the particle size of the superfine bauxite clinker particles is 3-5 mm, and the content of alumina in the superfine bauxite clinker particles is not less than 88%.
5. Iron works water slag runner according to claim 1, characterized in that the particle size of the alpha-alumina micropowder is < 2 μm, the content of alpha-alumina micropowder alumina being greater than or equal to 99%.
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| CN202010427318.3A CN111439994B (en) | 2020-05-19 | 2020-05-19 | Slag runner for iron works and high-strength ceramic wear-resistant castable working lining thereof |
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| CN208532839U (en) * | 2018-06-10 | 2019-02-22 | 鞍钢股份有限公司 | A kind of roughing runner head water cooling mouth |
| CN212532788U (en) * | 2020-05-19 | 2021-02-12 | 河北昊兴耐火炉料有限公司 | Water slag channel with high-strength ceramic wear-resistant castable working lining for iron-making plant |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH08246014A (en) * | 1995-03-07 | 1996-09-24 | Nippon Steel Corp | Water-cooled molten slag trough for blast furnace |
| CN203076574U (en) * | 2013-02-27 | 2013-07-24 | 孙志红 | Steel ladle pouring slag line underlayer |
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| CN208532839U (en) * | 2018-06-10 | 2019-02-22 | 鞍钢股份有限公司 | A kind of roughing runner head water cooling mouth |
| CN212532788U (en) * | 2020-05-19 | 2021-02-12 | 河北昊兴耐火炉料有限公司 | Water slag channel with high-strength ceramic wear-resistant castable working lining for iron-making plant |
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| CN111439994A (en) | 2020-07-24 |
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