CN113860858A - Preheater inner cylinder ceramic hanging piece convenient to assemble and assembling method thereof - Google Patents
Preheater inner cylinder ceramic hanging piece convenient to assemble and assembling method thereof Download PDFInfo
- Publication number
- CN113860858A CN113860858A CN202111211271.8A CN202111211271A CN113860858A CN 113860858 A CN113860858 A CN 113860858A CN 202111211271 A CN202111211271 A CN 202111211271A CN 113860858 A CN113860858 A CN 113860858A
- Authority
- CN
- China
- Prior art keywords
- parts
- ceramic
- preheater
- hoop
- sheet body
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
Images
Classifications
-
- 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
- C04B35/71—Ceramic products containing macroscopic reinforcing agents
- C04B35/78—Ceramic products containing macroscopic reinforcing agents containing non-metallic materials
- C04B35/80—Fibres, filaments, whiskers, platelets, or the like
-
- 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
-
- 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
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
-
- 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
- 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
- C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
- C04B2235/3208—Calcium oxide or oxide-forming salts thereof, e.g. lime
-
- 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
- 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
- C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
- C04B2235/3244—Zirconium oxides, zirconates, hafnium oxides, hafnates, or oxide-forming salts thereof
-
- 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
- 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
-
- 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
- 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
- C04B2235/40—Metallic constituents or additives not added as binding phase
- C04B2235/404—Refractory metals
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
- C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
- C04B2235/6567—Treatment time
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Compositions Of Oxide Ceramics (AREA)
Abstract
The invention belongs to the technical field of preheater cyclones, and particularly relates to a preheater inner cylinder ceramic hanging piece convenient to assemble and an assembling method thereof. The invention uses the inner and outer supporting hoops with adjustable tightness as the limiting supports to replace the scheme that the ceramic hanging pieces in the traditional inner cylinder are mutually embedded, effectively avoids the problem that the embedded parts are easy to damage, can quickly disassemble and replace the ceramic hanging pieces, and greatly reduces the downtime.
Description
Technical Field
The invention belongs to the technical field of preheater cyclones, and particularly relates to a preheater inner cylinder ceramic hanging piece convenient to assemble and an assembling method thereof.
Background
For a long time, the inner cylinder of the preheater cyclone cylinder applied in the dry cement production line at home and abroad is mainly made of nickel-chromium heat-resistant alloy steel, and the outstanding defects exist in two aspects: firstly, the price of steel is expensive, and each ton of steel is usually more than one hundred thousand yuan, so that the manufacturing cost of the inner cylinder of the preheater cyclone can reach dozens of ten thousand yuan; secondly, the service life is short, the acid and alkali corrosion resistance of the alloy steel is poor, and the service life is only 10-14 months on average in a normal state. Because of the shutdown maintenance replacement inner barrel that causes, seriously influenced the production time of enterprise, caused the burden for enterprise manufacturing cost. How to manufacture an inner cylinder with high strength, corrosion resistance and wear resistance to replace the existing alloy steel, control the production cost and improve the practical life at the same time, is a technical problem concerned by the cement production industry. In the prior art, an inner cylinder of a preheater cyclone is manufactured by adopting a ceramic component with low cost, corrosion resistance and better wear resistance.
The patent specification with publication number CN201293559Y discloses a full ceramic preheater inner tube, and its wear-resisting ceramic subassembly is including the wear-resisting ceramic post and the arc ceramic connecting plate of concatenation equipment, and wear-resisting ceramic post splices each other, and the concatenation side is through letter butt joint mouth concatenation, and the wear-resisting ceramic post upper and lower extreme is equipped with the connector with the connecting plate respectively, connects through bolt and nut. The splicing mode is simple in structure and convenient to splice, but the inner cylinder is only provided with one layer of ceramic column, the length of the ceramic column is too long, the processing difficulty of high-temperature-resistant ceramic is high, the cost is high, and meanwhile, due to expansion with heat and contraction with cold under temperature difference, the inner arc-shaped connecting plate and the outer arc-shaped connecting plate are loosened after deformation of the ceramic column, cannot be tightly connected, and the service life is not long.
The patent specification with the publication number of CN102183151B discloses a preheater cyclone inner cylinder, which comprises an inner cylinder body connected with a cyclone fixing seat, wherein the inner cylinder body is formed by mutually matching and connecting a plurality of ceramic hanging pieces and ceramic connecting plates; each ceramic hanging piece is of a square plate structure, the left side surface and the right side surface of each ceramic hanging piece are respectively provided with reversely symmetrical embedded steps, every two ceramic hanging pieces are embedded left and right and are tightly arranged along the circumferential direction to form a cylindrical body, the upper end part and the lower end part of the front surface and the rear surface of each ceramic hanging piece are respectively provided with a through hole penetrating through the front surface and the rear surface, and the upper end of each ceramic hanging piece on the upper part of the cylindrical body is connected with the fixed seat; the ceramic connecting plate is a strip plate, and through holes which are corresponding to the through holes and penetrate through the front surface and the rear surface of the ceramic connecting plate are arranged on the strip plate. The inner cylinder of the preheater cyclone cylinder still has defects when in use, the ceramic hanging pieces have poor wear resistance, when one of the ceramic hanging pieces is damaged, the whole inner cylinder needs to be disassembled due to embedding blocking, and the assembly operation is very complicated.
Therefore, there is a need for improved preheater internal cylinder ceramic hanging pieces to improve the assembly efficiency of the preheater cyclone for replacing components during use.
Disclosure of Invention
The invention aims to overcome the problems in the prior art and provides a preheater inner cylinder ceramic hanging piece convenient to assemble and an assembling method thereof.
In order to achieve the technical purpose and achieve the technical effect, the invention is realized by the following technical scheme:
the utility model provides a pre-heater inner tube ceramic lacing film convenient to assembly, this ceramic lacing film can form the inner tube that is located the pre-heater shell through the concatenation, the ceramic lacing film includes the lamellar body, the inside and outside lateral surface of lamellar body is the arcwall face, all the other sides of lamellar body are the plane, at least one deck and inner support hoop complex inner support groove have been seted up to the medial surface of lamellar body, at least one deck and outer support hoop complex outer support groove have been seted up to the lateral surface of lamellar body, the position of inner support groove, outer support groove staggers each other, the cylindricality portion inner wall of pre-heater shell is equipped with a plurality of perpendicular deep floor along circumference, the lateral surface of lamellar body is seted up and is erected deep floor complex positioning groove, erect deep floor and set up the perforation of being convenient for wearing to establish outer support hoop.
Furthermore, in the preheater inner cylinder ceramic hanging piece convenient to assemble, the radians of the inner side surface and the outer side surface of the piece body are equal, and the radians are 5-10 degrees; and the included angle of the circle centers between two adjacent vertical reinforcing rib plates is equal to the radian of the inner side surface or the outer side surface of the sheet body.
Furthermore, in the preheater inner cylinder ceramic hanging piece convenient to assemble, the inner side surface of the piece body is provided with two layers of inner positioning grooves matched with the inner support hoop, and the outer side surface of the piece body is provided with two layers of outer positioning grooves matched with the outer support hoop.
Furthermore, in the preheater inner cylinder ceramic hanging piece convenient to assemble, the piece body is a solid piece body, the thickness of the solid piece body is 0.5-2cm, and the length of the piece body along the axial direction of the inner cylinder is 5-20 cm.
Further, in the preheater inner tube ceramic lacing film convenient to assemble, the inner wall of the cylindrical part of the preheater shell is provided with the upper annular limiting rib plate and the lower annular limiting rib plate which are hollowed out, after the inner tube is installed, the upper end face of the inner tube abuts against the upper annular limiting rib plate, and the lower end face of the inner tube abuts against the lower annular limiting rib plate.
Further, in the preheater inner cylinder ceramic hanger piece convenient to assemble, the cross sections of the inner support groove and the outer support groove are both semicircular, the inner support hoop and the outer support hoop are both wire hoops, and the wire body of each wire hoop is made of steel materials.
Further, in the above-mentioned pre-heater inner tube ceramic lacing film convenient to assemble, install the elasticity regulator that is used for adjusting the elasticity on the interior support hoop, the outer support hoop, and the elasticity regulator of interior support hoop sets up towards the inboard region of keeping away from the lamellar body, and the elasticity regulator of outer support hoop sets up towards the outside region of keeping away from the lamellar body.
Further, in the preheater inner cylinder ceramic hanging piece convenient to assemble, the ceramic hanging piece is prepared from the following components in parts by weight: 50-70 parts of nano aluminum oxide, 20-30 parts of nano zirconium oxide, 6-8 parts of nano silicon dioxide, 3-5 parts of calcium carbonate whisker, 3-5 parts of calcite and 1-3 parts of molybdenum.
Further, in the preheater inner cylinder ceramic hanging piece convenient to assemble, the preparation method of the ceramic hanging piece comprises the following steps:
1) weighing 50-70 parts of nano alumina, 20-30 parts of nano zirconia, 6-8 parts of nano silicon dioxide, 3-5 parts of calcium carbonate whisker, 3-5 parts of calcite and 1-3 parts of molybdenum according to the weight part ratio; uniformly mixing the components, adding 50-60 parts of water, carrying out ball milling for 12-24 hours, and filtering by using a mud filter to obtain mud;
2) putting the obtained pug into vacuum for pugging for 40-50 minutes and homogenizing, wherein the vacuum degree is 0.35 MP; after vacuum homogenization, placing the mixture in a vacuum forming machine for forming to obtain a formed product;
3) drying the obtained molded product at the temperature of 53-57 ℃ and the humidity of 30-36% to obtain a dried blank;
4) and after the obtained dried blank is trimmed, the blank is placed in a kiln chamber, dried at the temperature of 150-170 ℃ for 4-6 hours, placed in a kiln field, kept at the temperature of 1600-1700 ℃ for 2-4 hours after 36-16 hours, cooled to 50-70 ℃ and taken out of the kiln, and the ceramic inner cylinder hanging piece is obtained.
A method for assembling a ceramic hanging piece of an inner cylinder of a preheater, which is convenient to assemble, comprises the following steps:
1) an outer support hoop is arranged in a vertical reinforcing rib plate of the shell of the preheater in a penetrating way;
2) mounting ceramic hanging pieces on the vertical reinforcing rib plate and the outer support hoop, wherein a positioning clamping groove of the ceramic hanging pieces is clamped outside the vertical reinforcing rib plate during mounting, and meanwhile, the outer support groove is clamped outside the outer support hoop;
3) mounting inner support hoops on the inner sides of the ceramic hanging pieces which are arranged in a ring shape, and enabling the inner support hoops to be clamped into the inner support grooves of the ceramic hanging pieces;
4) and sequentially stacking the ceramic hanging pieces on each layer, wherein the adjacent two layers of ceramic hanging pieces are mutually abutted.
The invention has the beneficial effects that:
1. the ceramic hanging piece has reasonable structural design, the inner and outer supporting hoops with adjustable tightness are used as limiting supports to replace the scheme that the ceramic hanging pieces in the traditional inner barrel are mutually embedded, the problem that the embedded part is easy to damage is effectively avoided, the mutual interference of the adjacent ceramic hanging pieces is also avoided, when the ceramic hanging piece needs to be replaced, the ceramic hanging piece can be quickly detached and replaced only by adjusting the tightness of the inner and outer supporting hoops at the corresponding position, and the downtime is greatly reduced.
2. The ceramic hanging piece has scientific formula design, and the prepared ceramic hanging piece has higher wear resistance and better toughness, thereby meeting the use requirement of the ceramic hanging piece as an inner cylinder part.
Of course, it is not necessary for any one product that embodies the invention to achieve all of the above advantages simultaneously.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced 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 that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is an assembly schematic of the present invention;
FIG. 2 is a schematic view of the inner barrel of the present invention;
FIG. 3 is a schematic view showing the internal structure of the cylindrical portion of the preheater housing in accordance with the present invention;
FIG. 4 is a schematic view of an angle of the ceramic mounting plate of the present invention;
FIG. 5 is a schematic view of another angle of the ceramic hanging piece of the present invention;
in the figure: 1-ceramic hanging piece, 101-piece body, 102-inner supporting groove, 103-outer supporting groove, 104-positioning clamping groove, 2-preheater shell, 3-vertical reinforcing plate, 4-inner supporting hoop and 5-outer supporting hoop.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 5, the invention provides a preheater inner cylinder ceramic hanging piece convenient to assemble, the ceramic hanging piece 1 can form an inner cylinder positioned in a preheater shell 2 through splicing, the ceramic hanging piece 1 comprises a piece body 101, the inner side surface and the outer side surface of the piece body 101 are both arc surfaces, and the other side surfaces of the piece body 101 are both planes. The inner side surface of the sheet body 101 is provided with two layers of inner supporting grooves 102 matched with the inner supporting hoops 4, the outer side surface of the sheet body 101 is provided with two layers of outer supporting grooves 103 matched with the outer supporting hoops 5, and the positions of the inner supporting grooves 102 and the outer supporting grooves 103 are staggered. The inner wall of the cylindrical part of the preheater shell 2 is provided with a plurality of vertical reinforcing rib plates 3 along the circumferential direction, the outer side surface of the sheet body 101 is provided with a positioning clamping groove 104 matched with the vertical reinforcing rib plates 3, and the vertical reinforcing rib plates 3 are provided with through holes convenient for penetrating through the outer support hoop 5.
In the invention, the radian of the inner side surface and the radian of the outer side surface of the sheet body 101 are equal, and the radian is 5-10 degrees; the included angle of the circle centers between two adjacent vertical reinforcing rib plates 3 is equal to the radian of the inner side surface or the outer side surface of the sheet body 101.
In the invention, the sheet body 101 is a solid sheet body, the thickness of the sheet body is 0.5-2cm, and the length of the sheet body 101 along the axial direction of the inner cylinder is 5-20 cm.
According to the invention, the inner wall of the cylindrical part of the preheater shell 2 is provided with the upper annular limiting rib plate and the lower annular limiting rib plate which are hollowed out, after the inner barrel is installed, the upper end surface of the inner barrel abuts against the upper annular limiting rib plate, and the lower end surface of the inner barrel abuts against the lower annular limiting rib plate.
In the invention, the cross sections of the inner supporting groove 102 and the outer supporting groove 103 are semicircular, the inner supporting hoop 4 and the outer supporting hoop 5 are wire hoops, and the wire body of the wire hoop is made of steel material. The inner supporting hoop 4 and the outer supporting hoop 5 are provided with tightness regulators for regulating the tightness of the wire body, the tightness regulators of the inner supporting hoop 4 are arranged towards the inner side area far away from the sheet body 101, and the tightness regulators of the outer supporting hoop 5 are arranged towards the outer side area far away from the sheet body 101.
In this embodiment, the ceramic hanging piece 1 is made of the following components in parts by weight: 50-70 parts of nano aluminum oxide, 20-30 parts of nano zirconium oxide, 6-8 parts of nano silicon dioxide, 3-5 parts of calcium carbonate whisker, 3-5 parts of calcite and 1-3 parts of molybdenum.
The preparation method of the ceramic hanging piece 1 comprises the following steps:
1) weighing 50-70 parts of nano alumina, 20-30 parts of nano zirconia, 6-8 parts of nano silicon dioxide, 3-5 parts of calcium carbonate whisker, 3-5 parts of calcite and 1-3 parts of molybdenum according to the weight part ratio; uniformly mixing the components, adding 50-60 parts of water, carrying out ball milling for 12-24 hours, and filtering by using a mud filter to obtain mud;
2) putting the obtained pug into vacuum for pugging for 40-50 minutes and homogenizing, wherein the vacuum degree is 0.35 MP; after vacuum homogenization, placing the mixture in a vacuum forming machine for forming to obtain a formed product;
3) drying the obtained molded product at the temperature of 53-57 ℃ and the humidity of 30-36% to obtain a dried blank;
4) and after the obtained dried blank is trimmed, the blank is placed in a kiln chamber, dried at the temperature of 150-170 ℃ for 4-6 hours, placed in a kiln field, kept at the temperature of 1600-1700 ℃ for 2-4 hours after 36-16 hours, cooled to 50-70 ℃ and taken out of the kiln, and the ceramic inner cylinder hanging piece is obtained.
The invention also provides an assembly method of the ceramic hanging piece of the inner cylinder of the preheater, which comprises the following steps:
1) an outer support hoop is arranged in a vertical reinforcing rib plate of the shell of the preheater in a penetrating way;
2) mounting ceramic hanging pieces on the vertical reinforcing rib plate and the outer support hoop, wherein a positioning clamping groove of the ceramic hanging pieces is clamped outside the vertical reinforcing rib plate during mounting, and meanwhile, the outer support groove is clamped outside the outer support hoop;
3) mounting inner support hoops on the inner sides of the ceramic hanging pieces which are arranged in a ring shape, and enabling the inner support hoops to be clamped into the inner support grooves of the ceramic hanging pieces;
4) and sequentially stacking the ceramic hanging pieces on each layer, wherein the adjacent two layers of ceramic hanging pieces are mutually abutted.
The following embodiments are relevant to the present invention:
example one
In this embodiment, the ceramic hanging piece is made of the following components in parts by weight: 50 parts of nano aluminum oxide, 30 parts of nano zirconium oxide, 6 parts of nano silicon dioxide, 5 parts of calcium carbonate whisker, 3 parts of calcite and 3 parts of molybdenum.
The preparation method of the ceramic hanging piece comprises the following steps:
1) weighing 50 parts of nano alumina, 30 parts of nano zirconia, 6 parts of nano silicon dioxide, 5 parts of calcium carbonate whisker, 3 parts of calcite and 3 parts of molybdenum according to the weight part ratio; uniformly mixing all the components, adding 50 parts of water, carrying out ball milling for 12 hours, and filtering by using a mud filter to obtain mud;
2) putting the obtained pug in vacuum for pugging for 50 minutes and homogenizing, wherein the vacuum degree is 0.35 MP; after vacuum homogenization, placing the mixture in a vacuum forming machine for forming to obtain a formed product;
3) drying the obtained molded product at the temperature of 53 ℃ and the humidity of 30% to obtain a dried blank;
4) and (3) after the obtained dried green body is subjected to blank trimming, placing the green body into a kiln chamber, drying the green body at the temperature of 150 ℃ for 6 hours, placing the green body in a kiln field, keeping the temperature for 4 hours when the temperature reaches 1600 ℃, cooling the green body to 70 ℃ for 14 hours, and discharging the green body out of the kiln to obtain the ceramic inner cylinder hanging piece.
Example two
In this embodiment, the ceramic hanging piece is made of the following components in parts by weight: 55 parts of nano-alumina, 28 parts of nano-zirconia, 7 parts of nano-silica, 4 parts of calcium carbonate whisker, 4 parts of calcite and 2 parts of molybdenum.
The preparation method of the ceramic hanging piece comprises the following steps:
1) weighing 55 parts of nano alumina, 28 parts of nano zirconia, 7 parts of nano silicon dioxide, 4 parts of calcium carbonate whisker, 4 parts of calcite and 2 parts of molybdenum according to the weight part ratio; uniformly mixing all the components, adding 52 parts of water, carrying out ball milling for 16 hours, and filtering by using a mud filter to obtain mud;
2) putting the obtained pug in vacuum for pugging for 48 minutes and homogenizing, wherein the vacuum degree is 0.35 MP; after vacuum homogenization, placing the mixture in a vacuum forming machine for forming to obtain a formed product;
3) drying the obtained molded product at the temperature of 54 ℃ and the humidity of 32% to obtain a dried blank;
4) and (3) after the obtained dried blank is subjected to blank trimming, placing the blank into a kiln chamber, drying the blank at the temperature of 155 ℃ for 5 hours, placing the blank in a kiln field, preserving the heat for 3 hours until the temperature reaches 1620 ℃ after 36 hours, cooling the blank to 60 ℃ after 15 hours, and discharging the blank out of the kiln to obtain the ceramic inner cylinder hanging piece.
EXAMPLE III
In this embodiment, the ceramic hanging piece is made of the following components in parts by weight: 60 parts of nano aluminum oxide, 24 parts of nano zirconium oxide, 7 parts of nano silicon dioxide, 4 parts of calcium carbonate whisker, 4 parts of calcite and 2 parts of molybdenum.
The preparation method of the ceramic hanging piece comprises the following steps:
1) weighing 60 parts of nano alumina, 24 parts of nano zirconia, 7 parts of nano silicon dioxide, 4 parts of calcium carbonate whisker, 4 parts of calcite and 2 parts of molybdenum according to the weight part ratio; uniformly mixing all the components, adding 54 parts of water, carrying out ball milling for 20 hours, and filtering by using a mud filter to obtain mud;
2) putting the obtained pug in vacuum for pugging for 46 minutes and homogenizing, wherein the vacuum degree is 0.35 MP; after vacuum homogenization, placing the mixture in a vacuum forming machine for forming to obtain a formed product;
3) drying the obtained molded product at the temperature of 55 ℃ and the humidity of 33 percent to obtain a dried blank;
4) and (3) after the obtained dried blank is subjected to blank trimming, placing the blank into a kiln chamber, drying the blank at the temperature of 160 ℃ for 5 hours, placing the blank into a kiln field, preserving the heat for 3 hours after the temperature reaches 1650 ℃ for 36 hours, cooling the blank to 60 ℃ for 15 hours, and discharging the blank out of the kiln to obtain the ceramic inner cylinder hanging piece.
Example four
In this embodiment, the ceramic hanging piece is made of the following components in parts by weight: 65 parts of nano aluminum oxide, 22 parts of nano zirconium oxide, 7 parts of nano silicon dioxide, 4 parts of calcium carbonate whisker, 4 parts of calcite and 2 parts of molybdenum.
The preparation method of the ceramic hanging piece comprises the following steps:
1) weighing 65 parts of nano alumina, 22 parts of nano zirconia, 7 parts of nano silicon dioxide, 4 parts of calcium carbonate whisker, 4 parts of calcite and 2 parts of molybdenum according to the weight part ratio; uniformly mixing the components, adding 56 parts of water, carrying out ball milling for 22 hours, and filtering by using a mud filter to obtain mud;
2) putting the obtained pug in vacuum for pugging for 42 minutes and homogenizing, wherein the vacuum degree is 0.35 MP; after vacuum homogenization, placing the mixture in a vacuum forming machine for forming to obtain a formed product;
3) drying the obtained molded product at the temperature of 56 ℃ and the humidity of 34% to obtain a dried blank;
4) and (3) after the obtained dried blank is subjected to blank trimming, placing the blank into a kiln chamber, drying the blank at the temperature of 165 ℃ for 5 hours, placing the blank into a kiln field, preserving the heat for 3 hours at the temperature of 1670 ℃ after 36 hours, cooling the blank to 60 ℃ after 15 hours, and discharging the blank out of the kiln to obtain the ceramic inner cylinder hanging piece.
EXAMPLE five
In this embodiment, the ceramic hanging piece is made of the following components in parts by weight: 70 parts of nano aluminum oxide, 20 parts of nano zirconium oxide, 8 parts of nano silicon dioxide, 3 parts of calcium carbonate whisker, 5 parts of calcite and 1 part of molybdenum.
The preparation method of the ceramic hanging piece comprises the following steps:
1) weighing 70 parts of nano alumina, 20 parts of nano zirconia, 8 parts of nano silicon dioxide, 3 parts of calcium carbonate whisker, 5 parts of calcite and 1 part of molybdenum according to the weight part ratio; uniformly mixing the components, adding 60 parts of water, carrying out ball milling for 24 hours, and filtering by using a mud filter to obtain mud;
2) putting the obtained pug in vacuum for pugging for 40 minutes and homogenizing, wherein the vacuum degree is 0.35 MP; after vacuum homogenization, placing the mixture in a vacuum forming machine for forming to obtain a formed product;
3) drying the obtained molded product at the temperature of 57 ℃ and the humidity of 36 percent to obtain a dried blank;
4) and (3) after the obtained dried blank is subjected to blank trimming, placing the blank into a kiln chamber, drying the blank at the temperature of 170 ℃ for 4 hours, placing the blank in a kiln field, preserving the heat for 2 hours at the temperature of 1700 ℃ for 36 hours, cooling the blank to 50 ℃ for 16 hours, and discharging the blank out of the kiln to obtain the ceramic inner cylinder hanging piece.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (10)
1. The utility model provides a ceramic lacing film of pre-heater inner tube convenient to assembly, this ceramic lacing film can form the inner tube that is located the pre-heater shell through the concatenation, its characterized in that: the ceramic hanging piece comprises a piece body, the inner side surface and the outer side surface of the piece body are arc surfaces, the other side surfaces of the piece body are planes, at least one layer of inner support groove matched with an inner support hoop is formed in the inner side surface of the piece body, at least one layer of outer support groove matched with an outer support hoop is formed in the outer side surface of the piece body, the positions of the inner support groove and the outer support groove are staggered, a plurality of vertical reinforcing rib plates are arranged on the inner wall of the cylindrical portion of the shell of the preheater along the circumferential direction, positioning clamping grooves matched with the vertical reinforcing rib plates are formed in the outer side surface of the piece body, and through holes convenient for the outer support hoop to penetrate through are formed in the vertical reinforcing rib plates.
2. A preheater inner tube ceramic hanger facilitating assembly as set forth in claim 1, wherein: the radians of the inner side surface and the outer side surface of the sheet body are equal, and the radians are 5-10 degrees; and the included angle of the circle centers between two adjacent vertical reinforcing rib plates is equal to the radian of the inner side surface or the outer side surface of the sheet body.
3. A preheater inner tube ceramic hanger facilitating assembly as set forth in claim 1, wherein: the inner side surface of the sheet body is provided with two layers of inner positioning grooves matched with the inner support hoop, and the outer side surface of the sheet body is provided with two layers of outer positioning grooves matched with the outer support hoop.
4. A preheater inner tube ceramic hanger facilitating assembly as set forth in claim 1, wherein: the sheet body is a solid sheet body, the thickness of the sheet body is 0.5-2cm, and the length of the sheet body along the axial direction of the inner cylinder is 5-20 cm.
5. A preheater inner tube ceramic hanger facilitating assembly as set forth in claim 1, wherein: the inner wall of the cylindrical part of the shell of the preheater is provided with a hollow upper annular limiting rib plate and a hollow lower annular limiting rib plate, after the inner barrel is installed, the upper end face of the inner barrel abuts against the upper annular limiting rib plate, and the lower end face of the inner barrel abuts against the lower annular limiting rib plate.
6. A preheater inner tube ceramic hanger facilitating assembly as set forth in claim 1, wherein: the cross sections of the inner supporting groove and the outer supporting groove are semicircular, the inner supporting hoop and the outer supporting hoop are wire hoops, and wire bodies of the wire hoops are made of steel materials.
7. A preheater inner tube ceramic hanger facilitating assembly as set forth in claim 1, wherein: the elastic adjusting devices used for adjusting the tightness are mounted on the inner supporting hoop and the outer supporting hoop, the elastic adjusting devices of the inner supporting hoop are arranged towards the inner side area far away from the sheet body, and the elastic adjusting devices of the outer supporting hoop are arranged towards the outer side area far away from the sheet body.
8. The pre-heater inner barrel ceramic hanging piece convenient to assemble of any one of claims 1 to 7, wherein the ceramic hanging piece is prepared from the following components in parts by weight: 50-70 parts of nano aluminum oxide, 20-30 parts of nano zirconium oxide, 6-8 parts of nano silicon dioxide, 3-5 parts of calcium carbonate whisker, 3-5 parts of calcite and 1-3 parts of molybdenum.
9. The easy-to-assemble preheater inner tube ceramic hanger of claim 8, wherein the preparation method of the ceramic hanger comprises the following steps:
1) weighing 50-70 parts of nano alumina, 20-30 parts of nano zirconia, 6-8 parts of nano silicon dioxide, 3-5 parts of calcium carbonate whisker, 3-5 parts of calcite and 1-3 parts of molybdenum according to the weight part ratio; uniformly mixing the components, adding 50-60 parts of water, carrying out ball milling for 12-24 hours, and filtering by using a mud filter to obtain mud;
2) putting the obtained pug into vacuum for pugging for 40-50 minutes and homogenizing, wherein the vacuum degree is 0.35 MP; after vacuum homogenization, placing the mixture in a vacuum forming machine for forming to obtain a formed product;
3) drying the obtained molded product at the temperature of 53-57 ℃ and the humidity of 30-36% to obtain a dried blank;
4) and after the obtained dried blank is trimmed, the blank is placed in a kiln chamber, dried at the temperature of 150-170 ℃ for 4-6 hours, placed in a kiln field, kept at the temperature of 1600-1700 ℃ for 2-4 hours after 36-16 hours, cooled to 50-70 ℃ and taken out of the kiln, and the ceramic inner cylinder hanging piece is obtained.
10. A method of assembling ceramic hanging pieces on an inner tube of a preheater as claimed in any one of claims 1 to 7, wherein the method comprises the steps of:
1) an outer support hoop is arranged in a vertical reinforcing rib plate of the shell of the preheater in a penetrating way;
2) mounting ceramic hanging pieces on the vertical reinforcing rib plate and the outer support hoop, wherein a positioning clamping groove of the ceramic hanging pieces is clamped outside the vertical reinforcing rib plate during mounting, and meanwhile, the outer support groove is clamped outside the outer support hoop;
3) mounting inner support hoops on the inner sides of the ceramic hanging pieces which are arranged in a ring shape, and enabling the inner support hoops to be clamped into the inner support grooves of the ceramic hanging pieces;
4) and sequentially stacking the ceramic hanging pieces on each layer, wherein the adjacent two layers of ceramic hanging pieces are mutually abutted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111211271.8A CN113860858B (en) | 2021-10-18 | 2021-10-18 | Preheater inner barrel ceramic hanging piece convenient to assemble and assembling method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111211271.8A CN113860858B (en) | 2021-10-18 | 2021-10-18 | Preheater inner barrel ceramic hanging piece convenient to assemble and assembling method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113860858A true CN113860858A (en) | 2021-12-31 |
| CN113860858B CN113860858B (en) | 2022-10-28 |
Family
ID=79000120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111211271.8A Active CN113860858B (en) | 2021-10-18 | 2021-10-18 | Preheater inner barrel ceramic hanging piece convenient to assemble and assembling method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113860858B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6575738B1 (en) * | 2002-08-16 | 2003-06-10 | Carole S. Nguyen | Composite refractory insulating tile |
| CN102381883A (en) * | 2011-07-29 | 2012-03-21 | 兴化市华伦达铸钢有限公司 | Method for preparing ceramic inner cylinder hanging tile |
| CN106187127A (en) * | 2016-07-08 | 2016-12-07 | 青岛海蓝海洋复合功能材料科技有限公司 | A kind of high-performance electronic pottery |
| CN210773427U (en) * | 2019-11-15 | 2020-06-16 | 河北飞天石化集团有限公司 | Decompression stove with thermal-insulated function |
| CN211400815U (en) * | 2019-12-31 | 2020-09-01 | 泰州水冶新材料科技有限公司 | Cement preheater inner tube |
| CN213235331U (en) * | 2020-08-26 | 2021-05-18 | 大丰锦辉风电设备有限公司 | Glass fiber reinforced plastic fan fairing shell |
-
2021
- 2021-10-18 CN CN202111211271.8A patent/CN113860858B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6575738B1 (en) * | 2002-08-16 | 2003-06-10 | Carole S. Nguyen | Composite refractory insulating tile |
| CN102381883A (en) * | 2011-07-29 | 2012-03-21 | 兴化市华伦达铸钢有限公司 | Method for preparing ceramic inner cylinder hanging tile |
| CN106187127A (en) * | 2016-07-08 | 2016-12-07 | 青岛海蓝海洋复合功能材料科技有限公司 | A kind of high-performance electronic pottery |
| CN210773427U (en) * | 2019-11-15 | 2020-06-16 | 河北飞天石化集团有限公司 | Decompression stove with thermal-insulated function |
| CN211400815U (en) * | 2019-12-31 | 2020-09-01 | 泰州水冶新材料科技有限公司 | Cement preheater inner tube |
| CN213235331U (en) * | 2020-08-26 | 2021-05-18 | 大丰锦辉风电设备有限公司 | Glass fiber reinforced plastic fan fairing shell |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113860858B (en) | 2022-10-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20050035591A1 (en) | Monolithic tube sheet and method of manufacture | |
| CN113860858B (en) | Preheater inner barrel ceramic hanging piece convenient to assemble and assembling method thereof | |
| US20070051220A1 (en) | Positioning method and device for columnar structure | |
| CN211400815U (en) | Cement preheater inner tube | |
| CN102183151B (en) | Internal cylinder for pre-heater cyclone, preparation method and special ceramic hanging pieces thereof | |
| CN113800797B (en) | Special ceramic hanging piece for inner cylinder of preheater and preparation method thereof | |
| CN112304100A (en) | Special stand column for reaction sintering silicon carbide kiln and preparation method thereof | |
| CN210595077U (en) | Old kiln elevating gear | |
| CN217574153U (en) | Seamless drum plate for tire body and tire body drum | |
| CN210452581U (en) | Bushing positioning tool for splayed coupling | |
| CN217877144U (en) | High-strength ceramic inner cylinder of cyclone preheater | |
| CN207081353U (en) | Single-tube floating tube-type graphite heat exchanger | |
| CN213090499U (en) | Novel smoke chamber supporting plate for cement kiln | |
| CN215491044U (en) | Electric heating furnace body structure of tubular kiln | |
| CN109909668A (en) | A kind of water-cooling wall assembly tool and water-cooling wall assembly method | |
| CN216239072U (en) | Mounting structure of composite insulation board | |
| CN220035836U (en) | Curtain wall connecting mechanism and curtain wall | |
| CN106017100A (en) | Wide-section high-temperature furnace fiberboard ceiling structure | |
| CN218666394U (en) | Heat preservation cylinder structure | |
| CN210387027U (en) | Support core tube | |
| CN110767396B (en) | Suspension type super-hydrophobic insulator forming die | |
| CN217651348U (en) | Heat shield guide cylinder for single crystal furnace | |
| CN215176988U (en) | Upper and lower lacing film mosaic structure, lacing film and pre-heater inner tube | |
| JPH027436Y2 (en) | ||
| CN220062513U (en) | Efficient cement rotary kiln device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |