CN108863377A - Light-weight ceramic tile - Google Patents

Light-weight ceramic tile Download PDF

Info

Publication number
CN108863377A
CN108863377A CN201710317104.9A CN201710317104A CN108863377A CN 108863377 A CN108863377 A CN 108863377A CN 201710317104 A CN201710317104 A CN 201710317104A CN 108863377 A CN108863377 A CN 108863377A
Authority
CN
China
Prior art keywords
ceramic
heat
exchange
silica
leakage
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.)
Withdrawn
Application number
CN201710317104.9A
Other languages
Chinese (zh)
Inventor
黎淑娟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Foshan Gaoming Technology Co Ltd
Original Assignee
Foshan Gaoming Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Foshan Gaoming Technology Co Ltd filed Critical Foshan Gaoming Technology Co Ltd
Priority to CN201710317104.9A priority Critical patent/CN108863377A/en
Publication of CN108863377A publication Critical patent/CN108863377A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
    • B01D3/14—Fractional distillation or use of a fractionation or rectification column
    • B01D3/32—Other features of fractionating columns ; Constructional details of fractionating columns not provided for in groups B01D3/16 - B01D3/30
    • B01D3/322—Reboiler specifications
    • 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
    • C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/56—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides
    • C04B35/565—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides based on silicon carbide
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/04—Constructions of heat-exchange apparatus characterised by the selection of particular materials of ceramic; of concrete; of natural stone
    • 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
    • C04B2235/34—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
    • C04B2235/349—Clays, e.g. bentonites, smectites such as montmorillonite, vermiculites or kaolines, e.g. illite, talc or sepiolite
    • 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
    • C04B2235/42—Non metallic elements added as constituents or additives, e.g. sulfur, phosphor, selenium or tellurium
    • C04B2235/428—Silicon
    • 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
    • C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
    • C04B2235/602—Making the green bodies or pre-forms by moulding
    • C04B2235/6021—Extrusion moulding
    • 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
    • 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
    • C04B2235/70—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
    • C04B2235/9669—Resistance against chemicals, e.g. against molten glass or molten salts

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Ceramic Products (AREA)

Abstract

The invention discloses a kind of ceramic material, heat-exchange ceramic and preparation method thereof, ceramic reboiler, which includes the component of following mass percent：Metallic silicon 5%~10%, silicon carbide 60%~70%, silica 1 0%~15%, bonding clay 10%~15%, lignin 0.2%~1%.Heat-exchange ceramic of the invention, room temperature compression strength are 35~50MPa, 300 DEG C of following temperature, have under the working condition that is flowed in pipe of heating oil can 0.7~0.9MPa of pressure resistance, be not in leakage scenarios；Corrosion resistance is strong, has good corrosion resistance to the high cryogenic gas such as hydrochloric acid, sulfuric acid, liquid；Glaze layer is formed using silica and seals stomata, solves the problems, such as common SiC material leakage；The heat-exchange ceramic has the advantages that high temperature resistant, thermally conductive fast, corrosion-resistant, anti-leakage, durable in various environment, long service life are suitble to promote and apply.

Description

Light-weight ceramic tile
Technical field
The invention belongs to technical field of heat exchange equipment, and in particular to a kind of ceramic material also relates to a kind of ceramics and changes Heat pipe and preparation method thereof, and the ceramic reboiler using the heat-exchange ceramic.
Background technique
Reboiler (also referred to as reboiler) is that one kind can exchange heat, while the special heat exchanger of gasifying liquid.Reboiler It is mostly shared with fractionating column, material expanded by heating in reboiler even vaporizes, and density becomes smaller, to leave vaporization space, smoothly Return to tower；The vehicle repair major of tower is returned to, gas phase falls on tower bottom upwardly through tower tray, liquid phase, to complete to be fractionated.
Currently, the reboiler used is mostly metal reboiler, heat exchanger tube and tube sheet are ordinary metallic material, chemical industry, It in the production process of the industries such as pharmacy, washed away, cavitate and the corrosion of microchemistry medium by material, there are biggish leakages Risk；Certain heat exchanger tubes and tube sheet material are more corrosion-resistant, such as plastics, graphite, but the reboiler of the industries such as chemical industry, pharmacy Higher using temperature, high temperature high corrosion environment still can not normal use；Such as stainless steel material, it is resistant to 500~600 DEG C of height Temperature, but cannot be used for a long time under the operating condition of deep-etching；If SiC is thermally conductive preferable resistant material, but SiC product The porosity is high, and there are serious leakage problems under high steam effect, can not under the industries high pressure operating condition such as chemical industry, pharmacy Normal use.For these reasons, there is short-term badly damaged not yet solve in the reboiler under heavy corrosion operating condition Certainly, burn into temperature, high pressure, the thermally conductive contradiction with material lead to that existing reboiler service life is short, replacement frequency is high, seriously Influence normally to produce goes on smoothly, while equipment cost and maintenance cost being caused to be significantly increased, and causes greatly to pass through to enterprise Ji loss.
Summary of the invention
The object of the present invention is to provide a kind of ceramic materials, caused by solving reboiler because of heat exchanger tube and tube sheet corrosion leakage The problem that service life is short, replacement frequency is high.
A second object of the present invention is to provide a kind of heat-exchange ceramics.
Third object of the present invention is to provide a kind of preparation methods of heat-exchange ceramic.
Fourth object of the present invention is to provide a kind of ceramic reboiler using above-mentioned heat-exchange ceramic.
In order to achieve the goal above, the technical scheme adopted by the invention is that：
A kind of ceramic material, the component comprising following mass percent：Metallic silicon 5%~10%, silicon carbide 60%~70%, Silica 1 0%~15%, bonding clay 10%~15%, lignin 0.2%~1%.
A kind of heat-exchange ceramic is mainly made of the raw material of following mass percent：Metallic silicon 5%~10%, silicon carbide 60%~70%, silica 1 0%~15%, bonding clay 10%~15%, lignin 0.2%~1%.
The metallic silicon, silicon carbide, silica, bonding clay are powder particle；The granularity of the metallic silicon is 800 ~1000 mesh；The granularity of the silicon carbide is 800~1000 mesh；The granularity of the silica is 325 mesh；The combination is viscous The granularity of soil is 160~180 mesh.
A kind of preparation method of above-mentioned heat-exchange ceramic, includes the following steps：
1) metallic silicon, silicon carbide, silica, the bonding clay for taking formula ratio, add water mixed grinding, obtain mixed slurry；
2) mixed slurry obtained by step 1) is taken, moisture is filtered out, obtains the mud cake that water content is 16%~18%；
3) lignin for taking formula ratio after mixing with mud cake obtained by step 2), is kneaded and aging, obtains aging material；
4) after being kneaded aging material obtained by step 3), extrusion molding and drying obtain the blank that water content is 0.2%~0.8%；
5) blank obtained by step 4) is sintered 20 under the conditions of 1400~1450 DEG C~for 24 hours to get.
In step 1), add water quality be metallic silicon, silicon carbide, silica and bonding clay gross mass 30%~ 35%.
In step 1), the time of the grinding is 10~12h.
In step 3), the aging time is 15~20 days.
In step 4), the drying temperature is 40~70 DEG C, and drying time is 20~30h.
A kind of ceramics reboiler, including shell are equipped with two tube sheets in the shell, by enclosure interior be divided into feed cavity, Heat exchanging chamber and discharging chamber；It is folded with heat-exchange ceramic, the feed cavity and discharging chamber between two tube sheet and passes through ceramics heat exchange Pipe is connected；The shell side import being connected with the heat exchanging chamber and shell-side outlet are equipped with close to heat exchanging chamber on the shell；It is described The feed inlet being connected with feed cavity is equipped on shell close to feed cavity, is gone out close to discharging chamber equipped with what is be connected with discharging chamber Material mouth.
The shell includes first shell and second shell, and the first shell and second shell are connected in by expansion bend Together；The expansion bend is set in the outside of the heat-exchange ceramic.
The shell and expansion bend are stainless steel material；
The tube sheet is ceramic joining plate.
The ceramic joining plate is made of above-mentioned ceramic material.
The same heat-exchange ceramic of preparation method of the ceramic joining plate, the difference is that according to institute when molding in step 4) Tube sheet shape is needed to adopt to be molded with a mold blank is made.
Baffle plate is additionally provided in the heat exchanging chamber.
Heat-exchange ceramic of the invention, using metallic silicon, silicon carbide, silica, bonding clay, lignin compounding system At in this complex material, metallic silicon can reduce the oxidation of silicon carbide during the sintering process, and silica is in sintering process In, glass phase is formed on surface and generates glaze layer, stomata is sealed, to effectively avoid leaking；Heat-exchange ceramic of the invention is normal Warm compression strength is 35~50MPa, can pressure resistance under 300 DEG C of following temperature, the working condition for having heating oil to flow in pipe 0.7~0.9MPa is not in leakage scenarios；Heat-exchange ceramic of the invention, corrosion resistance is strong, to the height such as hydrochloric acid, sulfuric acid Wet body, liquid have good tolerance；Glaze layer is formed using silica and seals stomata, is solved common SiC material and is seeped The problem of leakage；The heat-exchange ceramic has the advantages that high temperature resistant, thermally conductive fast, corrosion-resistant, anti-leakage, prolonged in various environment Durable, long service life is suitble to promote and apply.
Ceramic reboiler of the invention has the advantages that high temperature resistant, thermally conductive fast, corrosion-resistant, anti-leakage pottery using above-mentioned Porcelain heat exchanger tube, corrosion resistance is strong, has good tolerance to the high cryogenic gas such as hydrochloric acid, sulfuric acid, liquid, solves tradition Stainless steel material in particular circumstances severe corrosion damage, repair replace frequent problem in a short time；Equipment cost is low, makes It is long with the service life, 5~10 years reachable, market prospects with good economic efficiency.
The present invention is further illustrated With reference to embodiment.
Embodiment 1
The ceramic material of the present embodiment, consists of the following mass percentage components：Metallic silicon 5%, silicon carbide 70%, dioxy SiClx 14%, bonding clay 10%, lignin 1%.
The heat-exchange ceramic of the present embodiment is mainly made of the raw material of following mass percent：The metallic silicon power of 800 mesh 5%, the carborundum powder 70% of 800 mesh, the silicon dioxide powder 14% of 325 mesh, the bonding clay 10% of 160 mesh, lignin 1%.
The preparation method of the heat-exchange ceramic of the present embodiment, includes the following steps：
1) it takes metallic silicon power, carborundum powder, silicon dioxide powder, the bonding clay of formula ratio to be added in ball mill, above-mentioned powder is added Expect that the water of (metallic silicon power, carborundum powder, silicon dioxide powder and bonding clay) gross mass 30%, mixed grinding 10h must mix It is spare to be put into stock tank stirring for slurry；
2) it takes mixed slurry obtained by step 1) to be pumped into mud press, filters out moisture, obtain the mud cake that water content is 16%；
3) lignin and step 2) gained mud cake for taking formula ratio, are added stirring in blender and are placed in pugging to after mixing It is kneaded in machine twice, enters ageing silo afterwards aging 15 days, obtain aging material；
4) aging material obtained by step 3) is placed in pug mill after being kneaded, the model and specification designed as requested is squeezed with hydraulic Machine extrusion molding out obtains molding mass, and molding mass is placed in drying room, and dry 30h under the conditions of 40 DEG C, obtaining water content is 0.2% blank；
5) by blank obtained by step 4) be sintered under the conditions of 1400 for 24 hours to get.

Claims (2)

1. a kind of ceramic material, it is characterised in that：Component comprising following mass percent：Metallic silicon 5%~10%, silicon carbide 60%~70%, silica 1 0%~15%, bonding clay 10%~15%, lignin 0.2%~1%.
2. a kind of ceramic material, it is characterised in that：It is made of the raw material of following mass percent：Metallic silicon 5%~10%, carbon SiClx 60%~70%, silica 1 0%~15%, bonding clay 10%~15%, lignin 0.2%~1%.
CN201710317104.9A 2017-05-08 2017-05-08 Light-weight ceramic tile Withdrawn CN108863377A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710317104.9A CN108863377A (en) 2017-05-08 2017-05-08 Light-weight ceramic tile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710317104.9A CN108863377A (en) 2017-05-08 2017-05-08 Light-weight ceramic tile

Publications (1)

Publication Number Publication Date
CN108863377A true CN108863377A (en) 2018-11-23

Family

ID=64287753

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710317104.9A Withdrawn CN108863377A (en) 2017-05-08 2017-05-08 Light-weight ceramic tile

Country Status (1)

Country Link
CN (1) CN108863377A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112723857A (en) * 2020-12-04 2021-04-30 重庆耐得久新材料科技有限公司 Method for manufacturing microcrystalline plate

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112723857A (en) * 2020-12-04 2021-04-30 重庆耐得久新材料科技有限公司 Method for manufacturing microcrystalline plate

Similar Documents

Publication Publication Date Title
CN104529463B (en) A kind of ceramic material, heat-exchange ceramic and preparation method thereof, pottery reboiler
CN101935230B (en) Method for producing machining type impregnated graphite tube
CN102249237A (en) Graphite crucible
CN105712727A (en) Silicon carbide composite ceramic heat exchanger tube with high heat shock resistance and method for manufacturing silicon carbide composite ceramic heat exchanger tube
CN109678515A (en) Silicon carbide ceramics continuous flow reactor/condenser and its manufacturing method
CN109574639A (en) High thermal shock resistance corundum-mullite brick and preparation method thereof
CN108863377A (en) Light-weight ceramic tile
CN104136875A (en) Regenerator
CN101412615A (en) Dentiform porcelain column and preparation
CN108863381A (en) A kind of ceramic material
CN108863374A (en) The production technology of foamed ceramics
CN108863388A (en) A kind of ceramics dedicated ceramic glaze
CN108863389A (en) A kind of anti-bacteria ceramic
CN108863380A (en) ceramic composition
CN108863387A (en) A kind of cermet
CN108863382A (en) Cermet material
CN108863385A (en) New ceramics fiber
CN108863378A (en) A kind of conductivity ceramics
CN108863376A (en) The additive of ceramic glaze
CN108863383A (en) A kind of ceramic powders
CN108863375A (en) A kind of ceramic packing
CN108863379A (en) Magnesia insulating ceramics
CN108863384A (en) Health antibacterial ceramic glaze
CN117776731A (en) Pressureless sintering silicon carbide heat exchange tube and preparation method thereof
CN104529533A (en) Preparation method for graphite tube for heat exchanger

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
WW01 Invention patent application withdrawn after publication

Application publication date: 20181123

WW01 Invention patent application withdrawn after publication