CN108793964A - It is a kind of to prepare ancient architecture ceramics and preparation method thereof using municipal sludge - Google Patents
It is a kind of to prepare ancient architecture ceramics and preparation method thereof using municipal sludge Download PDFInfo
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- CN108793964A CN108793964A CN201811020511.4A CN201811020511A CN108793964A CN 108793964 A CN108793964 A CN 108793964A CN 201811020511 A CN201811020511 A CN 201811020511A CN 108793964 A CN108793964 A CN 108793964A
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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
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
- C04B33/132—Waste materials; Refuse; Residues
- C04B33/1321—Waste slurries, e.g. harbour sludge, industrial muds
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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
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/04—Clay; Kaolin
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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
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
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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
- 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
- C04B2235/3427—Silicates other than clay, e.g. water glass
- C04B2235/3463—Alumino-silicates other than clay, e.g. mullite
- C04B2235/3472—Alkali metal alumino-silicates other than clay, e.g. spodumene, alkali feldspars such as albite or orthoclase, micas such as muscovite, zeolites such as natrolite
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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
- 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
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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
- 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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/60—Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes
Abstract
Ancient architecture ceramics and preparation method thereof being prepared using municipal sludge the invention discloses a kind of, prepare the raw material that raw material includes following parts by weight：5~10 parts of 25~45 parts of kaolin, 10~25 parts of modification infusorial earth, 10~25 parts of municipal sludge, 5~10 parts of potassium feldspar, 5~10 parts of albite, 5~10 parts of montmorillonite and green coke.After municipal sludge is added in Production of Ceramics, the shortcomings that municipal sludge can be made up with adjusting process formula, make the raw material containing municipal sludge meet production ceramic tile and its watt technological requirement, the product of production is up to state standards, it can turn waste into wealth, waste utilization reduces production cost, reduces the pollution to environment.
Description
Technical field
The present invention relates to technical field of ceramic material, and more particularly to it is a kind of using municipal sludge prepare ancient architecture ceramics and its
Preparation method.
Background technology
Municipal sludge is the inevitable outcome of sewage treatment plant and sewage disposal.It is fast with Chinese society economy and urbanization
Speed development, the discharge capacity of China's municipal sludge are consequently increased.Because municipal sludge contains, there are many dangerous pathogens, a toxic huge sum of moneys
The harmful substances such as category, incretion interferent, so after entering environment without the sludge appropriately handled, it can be directly to water body and air
Secondary pollution is brought, not only reduces the effective processing capacity of sewage disposal system, and to the activity of ecological environment and the mankind
Constitute serious threat.Therefore, how rationally, effectively processing sludge has become a very urgent problem.
Currently, processing municipal sludge method have landfill method and burning method because landfill method be difficult to find that it is any suitable
Refuse landfill so that burning method becomes one of the important method of processing sludge.
But municipal sludge is handled using the method for burning, investment is big and equipment running cost is high, and when burning also will produce
The extremely toxic substances such as bioxin generate serious pollution to air.In addition to this, the processing method of above-mentioned sludge cannot all recycle
Using valuable substance in sludge, sludge cannot be made to get utilization.Currently come, the recycling of municipal sludge and
Recovery energy is the important directions of domestic sludge industry development.Therefore, substance useful in municipal sludge how is recycled
And the harm how effectively disposed and reduce to environment using municipal sludge becomes urgent important.
Invention content
The purpose of the present invention is to provide a kind of ancient architecture ceramics and preparation method thereof, this method gram are prepared using municipal sludge
The deficiency for taking existing preparation method, provide a kind of higher efficiency, more energy efficient, safer environmental protection production ancient architecture ceramics method.
The present invention solves its technical problem using following technical scheme to realize.
The present invention propose it is a kind of using municipal sludge prepare ancient architecture ceramics and preparation method thereof, including following parts by weight
Raw material：25~45 parts of kaolin, 10~25 parts of modification infusorial earth, 10~25 parts of municipal sludge, 5~10 parts of potassium feldspar, albite 5
~10 parts, 5~10 parts of 5~10 parts of montmorillonite and green coke.
The present invention also proposes a kind of preparation method preparing ancient architecture ceramics using municipal sludge, by each raw material through batch mixing, ball
It grinds, pulverize and sieve, half dry-pressing formed, drying and calcining obtain ancient architecture ceramics.
The beneficial effects of the invention are as follows：
Present invention offer is a kind of to prepare ancient architecture ceramics and preparation method thereof using municipal sludge, and this method passes through city dirt
Mud is mixed together with other raw materials, as fire raw material, the ceramic brick product obtained after calcining flexural strength, shrinking percentage,
The aspect of performance such as flatness are better than ceramic brick product currently on the market.
Specific implementation mode
It in order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below will be in the embodiment of the present invention
Technical solution be clearly and completely described.The person that is not specified actual conditions in embodiment, builds according to normal condition or manufacturer
The condition of view carries out.Reagents or instruments used without specified manufacturer is the conventional production that can be obtained by commercially available purchase
Product.
Below to it is provided in an embodiment of the present invention it is a kind of using municipal sludge prepare ancient architecture ceramics and preparation method thereof carry out
It illustrates.
Municipal sludge is the deposit that municipal sewage plant generates during treated sewage.Municipal sludge is aqueous
Rate is high, contains a large amount of organic matters, germ, parasite and heavy metal etc..If unprocessed random discharge, sludge is by rainwater
It corrodes and leaks, secondary pollution easily is caused to underground water, soil etc., directly endangers the health of the mankind.For a long time, I
The specific resistance to filtration of state is all relatively simple, and especially in some urban wastewater treatment firms, biochemical sludge is often unprocessed just to be transported
It is sent to farmland, or is directly thrown aside.
Currently, during preparing architectural pottery or ceramic tile using municipal sludge, municipal sludge and its are directly utilized
He carries out mixed sintering by raw material, since municipal sludge moisture content is high, and containing other organic matters, is unfavorable for directly utilizing system
Standby ceramics, therefore be badly in need of seeking a kind of method for efficiently using municipal sludge and preparing ancient building ceramics.
Present invention offer is a kind of to prepare ancient architecture ceramics and preparation method thereof using municipal sludge, and this method passes through city dirt
Mud is mixed together with other raw materials, fired to obtain a kind of ancient architecture ceramics as firing raw material.
A kind of utilization municipal sludge provided by the present invention prepares ancient architecture ceramics, includes the raw material of following parts by weight：Kaolinite
25~45 parts of soil, 10~25 parts of modification infusorial earth, 10~25 parts of municipal sludge, 5~15 parts of potassium feldspar, 5~15 parts of albite cover
5~15 parts of 5~15 parts of de- stone and green coke.
Ancient architecture ceramics and preparation method thereof being prepared using municipal sludge an embodiment of the present invention provides a kind of, raw material includes
Kaolin, modification infusorial earth, municipal sludge, potassium feldspar, albite, montmorillonite, green coke, wherein modification infusorial earth, montmorillonite and
Green coke all has strong suction-operated, can effectively be adsorbed the impurity in municipal sewage, since municipal sludge contains
Water rate is high, is mainly made of microbial bacteria micelle, is in paste, and water therein is with free state water, physical combination water (such as capillary
Guan Shui, Interstitial Water, colloid surface adsorb water) and chemically in conjunction with water (such as molecular water, intracellular water).Free state water can lead to
It crosses gravity or mechanical removal, physical combination water and water is chemically combined by heat and chemical bond removal need to be broken.We
Method is that potassium feldspar and albite are added into municipal sludge, potassium feldspar and free state water in albite absorption sludge and physical
In conjunction with water, hydration reaction occurs, releases heat, destroys the micelle structure of sludge, sludge is made to desertify, and evaporate part water in sludge
Point, reduce the moisture content of sludge.And high alkalinity solution environmental is formed after hydration reaction in sludge, keeps microbial bacteria micelle thin
The moisture of intracellular oozes out, and intracellular is chemically transformed into free state water in conjunction with water, and microorganism is dead in alkaline environment, to
Reach the sterilizing, deodorization, dehydrating effect of sludge.By treated municipal sludge, moisture content can be reduced to 35%, volume
It reduces to original 1/4 or so, no longer generates stench, organic species therein, heavy oil component in alternative haydite production is used
In the foaming agent and auxiliary fuel of production haydite, haydite calcination temperature is reduced, the haydite stomata of calcining is uniform, functional.
In some embodiments, a kind of to prepare ancient architecture ceramics using municipal sludge, include the raw material of following parts by weight：It is high
35~45 parts of ridge soil, 15~25 parts of modification infusorial earth, 15~25 parts of municipal sludge, 5~10 parts of potassium feldspar, 5~10 parts of albite,
5~10 parts of 5~10 parts of montmorillonite and green coke.
In some embodiments, a kind of to prepare ancient architecture ceramics using municipal sludge, include the raw material of following parts by weight：It is high
35~40 parts of ridge soil, 15~20 parts of modification infusorial earth, 15~20 parts of municipal sludge, 5~8 parts of potassium feldspar, 5~8 parts of albite cover
5~8 parts of 5~8 parts of de- stone and green coke.
The present invention also provides a kind of preparation methods preparing ancient architecture ceramics using municipal sludge, by each raw material through batch mixing, ball
It grinds, pulverize and sieve, half dry-pressing formed, dry and calcining, obtaining ancient architecture ceramics.
It will develop skillful Situ of Ceramics coagulation forming technology in advanced ceramic field in the embodiment of the present invention to be introduced into
In the moulding process of architectural pottery, traditional architecture ceramic molding thinking is broken through, using macromolecule polysaccharide as gelling agent, adjustment
Consolidation in-situ forming technological parameter has been prepared with >=90wt% environment-friendly type ancient building ceramic bodies, the pottery obtained after calcining
Tile product is in aspect of performance such as flexural strength, shrinking percentage, flatness better than ceramic brick product currently on the market.
In some embodiments, it in batch mixing, is previously added hydrochloric acid or nitric acid is handled.
In the embodiment of the present invention before batch mixing, it is previously added nitric acid or hydrochloric acid is handled, due to containing in municipal sludge
Have the alkaline heavy metal that part is toxic, after being reacted with acid, heavy metal is changed into corresponding salt, and salt be it is nontoxic, not only
The pollution for environment is reduced, and the ceramics prepared are enviroment protective ceramic.
In some embodiments, in mechanical milling process, add water as decentralized medium, increase molecular polysaccharide as gelling agent,
Ball-milling Time is 30~60min.
In some embodiments, ball material is milled to granularity in 150 mesh hereinafter, through ball milling and then powder through the ball milling
20 mesh of broken mistake sieves.
In some embodiments, half dry-pressing formed pressing pressure is 20~28MPa, pressurize 20 in pressing process~
60s。
In the embodiment of the present invention by various raw materials through dispensing, grind, pulverize and sieve after carry out it is half dry-pressing formed, due to city
Moisture content among city's sludge is higher, still also has a small amount of moisture after material matching mixing, and mixed material is carried out half
Dry-pressing formed, pressing pressure is 20~28MPa, 20~60s of pressurize in pressing process, the pressure preferably suppressed is 22~
25MPa, 30~50s of pressurize in pressing process, when being less than above-mentioned pressing pressure, molding is bad, influence subsequent calcining molding with
The shape of ceramics, when being higher than above-mentioned pressing pressure, the stress inside mixed material is larger, goes out during subsequent calcining
Existing slight crack, influences the aesthetics of product.
In some embodiments, dry temperature is 50~70 DEG C, and the time is 1~2h.
In some embodiments, calcination temperature is 800~1000 DEG C, and calcination time is 80~100min, calcined gas
For air, and using the gas collected in municipal sludge processing procedure as combustion adjuvant.
In the embodiment of the present invention prepare ceramics during, calcination temperature be 800~1000 DEG C, calcination time be 80~
The gas of 100min, calcining are air, and using the gas collected in municipal sludge processing procedure as combustion adjuvant, due to city
Containing noxious materials such as bioxin in the gas being discharged in processing procedure in city's sludge, after collection, in calcination process
Combustion adjuvant, after calcining, noxious material is changed into non-toxic components in combustion adjuvant, reduces the pollution for environment.
Make full use of the sludge of city domestic sewage treatment plant as raw material in the embodiment of the present invention, compared to traditional architecture
The production cost of ceramics can be greatly lowered in ceramic raw material；The green compact and ripe base of ceramics of the invention are all compared to traditional ceramics
With better mechanical property, sintering temperature flexural strength at 800~1000 DEG C reaches 122.5MPa~160MPa, reaches state
3.5 times~4.5 times of family standard 35MPa, while there is lower shrinking percentage；Present invention utilizes municipal sludges, solve city
City's sludge is stacked and problem of environmental pollution.
The feature and performance of the present invention are described in further detail with reference to embodiments.
Embodiment 1
It is a kind of to prepare ancient architecture ceramics using municipal sludge：
Include the raw material of following parts by weight：35 parts of kaolin, 20 parts of modification infusorial earth, 25 parts of municipal sludge, potassium feldspar 5
5 parts of part, 5 parts of albite, 5 parts of montmorillonite and green coke.
Preparation process is as follows：
Each raw material addition nitric acid is handled, batch mixing is then carried out, adds water as decentralized medium, macromolecule polysaccharide conduct
Gelling agent, ball milling 30min, it is 150 mesh to make the granularity after ball milling, pulverizes and sieves, makes material grain size in 20 mesh hereinafter, pressing pressure
For 20MPa, then pressurize 20s in pressing process is 50 DEG C in temperature, the time is 1h dry solidifications, and temperature is 800 DEG C, the time
It is calcined for 80min, obtains a kind of ancient architecture ceramics prepared using municipal sludge.
Embodiment 2
It is a kind of to prepare ancient architecture ceramics using municipal sludge：
Include the raw material of following parts by weight：36 parts of kaolin, 20 parts of modification infusorial earth, 20 parts of municipal sludge, potassium feldspar 6
6 parts of part, 6 parts of albite, 6 parts of montmorillonite and green coke.
Preparation process is as follows：
Each raw material addition nitric acid is handled, batch mixing is then carried out, adds water as decentralized medium, macromolecule polysaccharide conduct
Gelling agent, ball milling 40min, it is 150 mesh to make the granularity after ball milling, pulverizes and sieves, makes material grain size in 20 mesh hereinafter, pressing pressure
For 24MPa, then pressurize 40s in pressing process is 60 DEG C in temperature, the time is 1h dry solidifications, and temperature is 900 DEG C, the time
It is calcined for 90min, obtains a kind of ancient architecture ceramics prepared using municipal sludge.
Embodiment 3
It is a kind of to prepare ancient architecture ceramics using municipal sludge：
Include the raw material of following parts by weight：25 parts of kaolin, 25 parts of modification infusorial earth, 18 parts of municipal sludge, potassium feldspar 8
8 parts of part, 8 parts of albite, 8 parts of montmorillonite and green coke.
Preparation process is as follows：
Each raw material addition hydrochloric acid is handled, batch mixing is then carried out, adds water as decentralized medium, macromolecule polysaccharide conduct
Gelling agent, ball milling 50min, it is 150 mesh to make the granularity after ball milling, pulverizes and sieves, makes material grain size in 20 mesh hereinafter, pressing pressure
For 26MPa, then pressurize 50s in pressing process is 70 DEG C in temperature, the time is 1.5h dry solidifications, and temperature is 900 DEG C, when
Between calcined for 90min, it is ceramic to obtain a kind of ancient architecture for being prepared using municipal sludge.
Embodiment 4
It is a kind of to prepare ancient architecture ceramics using municipal sludge：
Include the raw material of following parts by weight：25 parts of kaolin, 10 parts of modification infusorial earth, 15 parts of municipal sludge, potassium feldspar 15
10 parts of part, 15 parts of albite, 10 parts of montmorillonite and green coke.
Preparation process is as follows：
Each raw material addition hydrochloric acid is handled, batch mixing is then carried out, adds water as decentralized medium, macromolecule polysaccharide conduct
Gelling agent, ball milling 60min, it is 150 mesh to make the granularity after ball milling, pulverizes and sieves, makes material grain size in 20 mesh hereinafter, pressing pressure
For 28MPa, then pressurize 60s in pressing process is 70 DEG C in temperature, the time is 2h dry solidifications, and temperature is 1000 DEG C, the time
It is calcined for 100min, obtains a kind of ancient architecture ceramics prepared using municipal sludge.
Comparative example 1
It is a kind of to prepare ancient architecture ceramics using municipal sludge：
Include the raw material of following parts by weight：35~45 parts of kaolin, 15~25 parts of modification infusorial earth and municipal sludge 10
~20 parts.
Preparation process is as follows：
By each raw material through batch mixing, add water as decentralized medium, ball milling 30min, temperature is 1000 DEG C, and the time forges for 100min
Burn, obtain it is a kind of using municipal sludge prepare ancient architecture ceramics.
For sintering temperature at 1000 DEG C, the flexural strength of obtained ceramics reaches 75MPa, and ceramic surface is not in comparative example 1
It is smooth, it may be possible to due to moisture content excessively high in municipal sludge, to make the volatilization of large quantity of moisture in calcination process is uneven to cause.
It is the test result of the ceramics in 1-4 of the embodiment of the present invention and comparative example 1 below：
1 test result of table
It can be seen that by above-mentioned table 1：The ceramics prepared in 1-4 of the embodiment of the present invention are in flexural strength, shrinking percentage peace
Weighing apparatus degree etc. in the embodiment of the present invention, is matched by raw material, can be prepared with mechanical property due to the ceramics in comparative example 1
The ceramic material of can be good the features such as, all ceramics obtained of testing have high intensity, the superior function of low water absorption, anti-folding strong
Angle value is more than 35MPa, under preferably matching, ceramic material flexural strength value is more than 100MPa, and shrinking percentage value is less than 7%.So
Municipal sludge can be used to produce the raw material of common building ceramics/ceramic post sintering brick and high strength industrial ceramic material.As it can be seen that
Municipal sludge can not only be efficiently used in the embodiment of the present invention, reduce sludge, and the ceramics prepared have beneficial performance.
To sum up, ancient architecture ceramics and preparation method thereof being prepared using municipal sludge the present invention provides a kind of, prepares raw material packet
Include the raw material of following parts by weight：25~45 parts of kaolin, 10~25 parts of modification infusorial earth, 10~25 parts of municipal sludge, potassium feldspar 5
~10 parts, 5~10 parts of albite, 5~10 parts of 5~10 parts of montmorillonite and green coke.After municipal sludge is added in Production of Ceramics,
The shortcomings that municipal sludge can be made up with adjusting process formula, make the raw material containing municipal sludge meet production ceramic tile and its watt work
Skill requirement, the product of production are up to state standards, can turn waste into wealth, and waste utilization reduces production cost, reduces the dirt to environment
Dye.
The beneficial effects of the invention are as follows：
The present invention is equipped with kaolin using the recycling of municipal sludge as breach, modification infusorial earth, municipal sludge, and potassium is long
Stone, albite, montmorillonite and green coke, are prepared ancient architecture ceramic material, gained ceramics brick product flexural strength, shrinking percentage,
The aspect of performance such as flatness are better than ceramic brick product currently on the market.Preparation process of the present invention is simple, and raw material is easy to get, and reduces
Sintering temperature, energy consumption cost is low, has very high use value, and be conducive to the realization of industrialization.The present invention not only saves
The use of production cost and ceramic raw material in short supply, and land resource and regenerated resources are taken full advantage of, it is municipal sludge etc.
The utilization of waste material resource provides new technical thought and scheme, is of great significance simultaneously for environmental improvement and protection.
Embodiments described above is a part of the embodiment of the present invention, instead of all the embodiments.The reality of the present invention
The detailed description for applying example is not intended to limit the range of claimed invention, but is merely representative of the selected implementation of the present invention
Example.Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without creative efforts
Every other embodiment, shall fall within the protection scope of the present invention.
Claims (10)
1. a kind of preparing ancient architecture ceramics using municipal sludge, which is characterized in that include the raw material of following parts by weight：Kaolin 25~
45 parts, 10~25 parts of modification infusorial earth, 10~25 parts of municipal sludge, 5~15 parts of potassium feldspar, 5~15 parts of albite, montmorillonite 5
~15 parts and 5~15 parts of green coke.
2. ancient architecture ceramics according to claim 1, which is characterized in that include the raw material of following parts by weight：Kaolin 35~
45 parts, 15~25 parts of modification infusorial earth, 15~25 parts of municipal sludge, 5~10 parts of potassium feldspar, 5~10 parts of albite, montmorillonite 5
~10 parts and 5~10 parts of green coke.
3. ancient architecture ceramics according to claim 1, which is characterized in that include the raw material of following parts by weight：Kaolin 35~
40 parts, 15~20 parts of modification infusorial earth, 15~20 parts of municipal sludge, 5~8 parts of potassium feldspar, 5~8 parts of albite, montmorillonite 5~8
5~8 parts of part and green coke.
4. a kind of according to any one of claims 1 to 3 method for preparing ancient architecture ceramics using municipal sludge, feature exists
In, by each raw material through batch mixing, ball milling, pulverize and sieve, half dry-pressing formed, dry and calcining, obtain the ancient architecture ceramics.
5. according to the method described in claim 4, it is characterized in that, in the batch mixing, it is previously added at hydrochloric acid or nitric acid
Reason.
6. according to the method described in claim 4, it is characterized in that, in the mechanical milling process, adds water as decentralized medium, increase
For molecular polysaccharide as gelling agent, Ball-milling Time is 30~60min.
7. according to the method described in claim 4, it is characterized in that, material through the ball milling be milled to granularity in 150 mesh hereinafter, through
The ball milling and then crushed 20 mesh sieve.
8. according to the method described in claim 4, it is characterized in that, described half dry-pressing formed pressing pressure be 20~28MPa,
The dwell time is 20~60s in pressing process.
9. according to the method described in claim 4, it is characterized in that, the temperature of the drying be 50~70 DEG C, the time be 1~
2h。
10. according to the method described in claim 4, it is characterized in that, the calcination temperature be 800~1000 DEG C, calcination time
For 80~100min, the calcined gas is air, and using the gas collected in municipal sludge processing procedure as combustion-supporting
Agent.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111875351A (en) * | 2020-07-31 | 2020-11-03 | 电子科技大学 | Method for firing ceramic based on sludge and capable of reducing energy consumption |
| CN112696693A (en) * | 2021-01-26 | 2021-04-23 | 贵州欧玛陶瓷有限责任公司 | Sludge calcining system |
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| CN107285742A (en) * | 2017-06-22 | 2017-10-24 | 合肥永泰新型建材有限公司 | A kind of construction material of utilization sludged waste material and preparation method thereof |
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| CN112696693A (en) * | 2021-01-26 | 2021-04-23 | 贵州欧玛陶瓷有限责任公司 | Sludge calcining system |
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| CN108793964B (en) | 2020-06-16 |
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