CN107459305A - A kind of curing agent that municipal sludge is processed into haydite - Google Patents

A kind of curing agent that municipal sludge is processed into haydite Download PDF

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Publication number
CN107459305A
CN107459305A CN201710662340.4A CN201710662340A CN107459305A CN 107459305 A CN107459305 A CN 107459305A CN 201710662340 A CN201710662340 A CN 201710662340A CN 107459305 A CN107459305 A CN 107459305A
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parts
component
municipal sludge
haydite
curing agent
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CN201710662340.4A
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陈建康
梅丰
陆伟
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Fujian Harbour Geotechnical Engineering Group Co Ltd
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Fujian Harbour Geotechnical Engineering Group Co Ltd
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Priority to CN201710662340.4A priority Critical patent/CN107459305A/en
Publication of CN107459305A publication Critical patent/CN107459305A/en
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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
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • C04B28/04—Portland cements
    • 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
    • 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
    • C04B33/32—Burning methods
    • 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
    • C04B2235/3217—Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
    • 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
    • C04B2235/3409—Boron oxide, borates, boric acids, or oxide forming salts thereof, e.g. borax
    • 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
    • C04B2235/38—Non-oxide ceramic constituents or additives
    • C04B2235/3817—Carbides
    • C04B2235/3826—Silicon carbides
    • 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
    • C04B2235/422—Carbon
    • 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
    • C04B2235/44—Metal salt constituents or additives chosen for the nature of the anions, e.g. hydrides or acetylacetonate
    • C04B2235/448—Sulphates or sulphites
    • 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
    • C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
    • C04B2235/52—Constituents or additives characterised by their shapes
    • C04B2235/5276—Whiskers, spindles, needles or pins
    • 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
    • C04B2235/6562—Heating rate
    • C—CHEMISTRY; METALLURGY
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    • 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
    • C04B2235/74—Physical characteristics
    • C04B2235/77—Density
    • 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
    • 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

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Treatment Of Sludge (AREA)

Abstract

The invention belongs to the preparation field of sludge curing agent, and in particular to a kind of curing agent that municipal sludge is processed into haydite.The curing agent is made up of component A and B component, and component A accounts for the 15wt% of municipal sludge weight 8, the 10wt% of municipal sludge weight 5 that B component is accounted for after component A solidifies.Component A is made up of the raw material of following parts by weight：20 35 parts of P.O42.5 Portland cements, 40 60 parts of S95 granulated blast-furnace slags, 35 50 parts of C.II flyash, 18 25 parts of quick lime, 13 parts of sulphate activation agent；B component is made up of the raw material of following parts by weight：57 parts of coke, 10 15 parts of sulfate fluxing agent, 23 34 parts of alpha alumina whisker, 20 42 parts of silicon carbide whisker, 15 26 parts of aluminium borate whisker.The curing agent of the present invention contains haydite, alumina whisker, silicon carbide whisker and aluminium borate whisker, when handling mud, can dramatically increase the tensile strength of curing materials, make the toughness of curing materials more preferable.

Description

A kind of curing agent that municipal sludge is processed into haydite
Technical field
The invention belongs to the preparation field of sludge curing agent, and in particular to a kind of solidification that municipal sludge is processed into haydite Agent.
Background technology
As the sharp increase of urban population, society, economic fast development, a large amount of undressed production waste water, life are dirty Water is discharged into inland lake, month after month, in riverbed and the thick layer bed mud of lake bed deposits one throughout the year.Cause external source in city seriously polluted, water Body eutrophication is constantly aggravated, deteriorating water quality, significantly impacts the ecological environment and resident living environment in city.The alluvial in river course The contradictions such as problem, environmental problem.Riverway sludge how is disposed, finds practicable most effective solution route, it is real The comprehensive utilization of existing resource, gives full play to audit immunization, it has also become the problem of social concerns.
Sludge caused by one city typically has 4 kinds：Construction slurry, riverway sludge, cloaca mud and sludge of sewage treatment plant. Compared with construction slurry, other 3 kinds of mud are due to containing the organic of pathogen, parasite (ovum), heavy metal and some difficult degradations Poisonous substance, if mishandling, easily cause secondary pollution.
The method handled at present mud destroys microbial cell knot in sludge to add curing agent into sludge Structure, promote the release of intracellular water, and pass through a series of complicated physical-chemical reaction（Such as hydration reaction）, have poisonous Harmful material is fixed in the network chain being formed by curing, and the very big solid of similar soil or cementing strength is converted it into, so as to drop The retentiveness of low sludge, accelerate the dehydration of sludge.
Municipal sludge has the characteristics of low-density, high-moisture percentage, is unfavorable for constructing and transports, therefore invents a kind of scene and be When handle municipal sludge curing technology, it appears it is particularly important.
The content of the invention
In view of the above-mentioned deficiencies in the prior art, it is an object of the present invention to provide a kind of solidification that municipal sludge is processed into haydite Agent.Some changes occur for the curing sludge treated by curing agent component A, its chemical constituent, then by being mixed into B component After type, porous material can be formed by calcining.
To realize the purpose of the present invention, adopt the following technical scheme that：
A kind of curing agent that municipal sludge is processed into haydite, is made up of component A and B component, and component A accounts for municipal sludge weight 8- 15wt%, the municipal sludge weight 5-10wt% that B component is accounted for after component A solidifies；Component A is made up of the raw material of following parts by weight： P.O42.5 Portland cement 20-35 parts, S95 granulated blast-furnace slag 40-60 parts, C.II flyash 35-50 parts, quick lime 18-25 parts, sulphate activation agent 1-3 parts；B component is made up of the raw material of following parts by weight：Coke 5-7 parts, sulfate fluxing agent 10-15 parts, Alpha-alumina whisker 23-34 parts, silicon carbide whisker 20-42 parts, aluminium borate whisker 15-26 parts.
The described curing agent that municipal sludge is processed into haydite, is made up of, component A accounts for municipal sludge component A and B component Weight 10wt%, the municipal sludge weight 8wt% that B component is accounted for after component A solidifies；Component A is made up of the raw material of following parts by weight： 30 parts of P.O42.5 Portland cements, 50 parts of S95 granulated blast-furnace slags, 45 parts of C.II flyash, 20 parts of quick lime, sulfuric acid 2 parts of salt exciting agent；B component is made up of the raw material of following parts by weight：6 parts of coke, 12 parts of sulfate fluxing agent, Alpha-alumina whisker 30 parts, 30 parts of silicon carbide whisker, 20 parts of aluminium borate whisker.
Described sulphate activation agent is that calcium sulfate and sodium sulphate are 3 in molar ratio:1 mixes.
Described sulfate fluxing agent is that magnesium sulfate, calcium sulfate are 5 in molar ratio:3 mix.
As above a kind of application method of the curing agent that municipal sludge is processed into haydite described in any one：In municipal sludge The middle component A for adding curing agent, solidifies municipal sludge, reduces moisture content and improves it and transports outward intensity；Then by after solidification Municipal sludge is transported to stock ground, adds the B component of curing agent, after mixed-forming, is stacked one day, is calcined and haydite is made.
Described calcining is that the material of shaping is heated into 100 ~ 110 DEG C with 1 ~ 2 DEG C per minute, is incubated 1h, it is ensured that aqueous Rate is down to below 10wt%；Then dried particle is sent into pyrogenation and carbonization stove, 800 DEG C is heated to 5 DEG C/min speed, Reverse fire is heated, and aerating mode is top air inlet bottom outlet mode, is incubated 30min so that the abundant pyrogenation and carbonization of particle； Finally particle is added in the rotary kiln that rotating speed is 1.5r/min and is calcined, is risen to 2 DEG C/min programming rate from 800 DEG C 1050 DEG C, and constant temperature 60min, haydite is made.
The present invention has advantages below compared with the prior art：
1）Municipal sludge has the reasons such as high-moisture percentage, low-density, high organic, is easily constructing and is transporting if untreated During form secondary pollution, by add curing agent component A change mud physical property and chemical constituent, possess it and apply Work and the intensity of outward transport；Again by with after B component mixed-forming, porous material-haydite can be formed by calcining；
2）In general haydite is compared to, its hole of haydite produced by the present invention is more, and the water-permeable brick of preparation its permeable effect is more It is good.For in general haydite, the increase in space is it is meant that the reduction of haydite intensity, it is easier to destroy, and it is this by solid The haydite of change, the addition of whisker can effectively improve its toughness while the increase of its space after calcining, increase its intensity.
Embodiment
For the further open rather than limitation present invention, below in conjunction with example, the present invention is described in further detail.
A kind of curing agent that municipal sludge is processed into haydite：It is made up of component A and B component, component A accounts for mud weight 8-15wt%, B component account for curing sludge weight 5-10wt%；Component A is made up of the raw material of following parts by weight：P.O42.5 ordinary silicons Acid salt cement 20-35 parts, S95 granulated blast-furnace slag 40-60 parts, C.II flyash 35-50 parts, quick lime 18-25 parts, sulfate Exciting agent 1-3 parts；B component is made up of the raw material of following parts by weight：Coke 5-7 parts, sulfate fluxing agent 10-15 parts, alpha-oxidation Al whisker 23-34 parts, silicon carbide whisker 20-42 parts, aluminium borate whisker 15-26 parts.
Embodiment 1
The present embodiment use main mud type for：Low-water-content（w%<80%）River lacustrine facies powder cement mud.
Municipal sludge is processed into the curing agent of haydite, is made up of component A and B component, component A accounts for municipal sludge weight 10wt%, the municipal sludge weight 8wt% that B component is accounted for after component A solidifies；Component A is made up of the raw material of following parts by weight： 30 parts of P.O42.5 Portland cements, 50 parts of S95 granulated blast-furnace slags, 45 parts of C.II flyash, 20 parts of quick lime, sulfuric acid 2 parts of salt exciting agent；B component is made up of the raw material of following parts by weight：6 parts of coke, 12 parts of sulfate fluxing agent, Alpha-alumina whisker 30 parts, 30 parts of silicon carbide whisker, 20 parts of aluminium borate whisker.
The component A of curing agent is added in municipal sludge, solidifies municipal sludge, moisture content is reduced and its outward transport of raising is strong Degree；Then the municipal sludge after solidification is transported to stock ground, adds the B component of curing agent, after mixed-forming, stacked one day, forge Fire to obtain haydite.
Described calcining is that the material of shaping is heated into 105 DEG C with 1 DEG C per minute, is incubated 1h, it is ensured that moisture content is down to Below 10wt%；Then dried particle is sent into pyrogenation and carbonization stove, 800 DEG C is heated to 5 DEG C/min speed, reversely fire Heated, aerating mode is top air inlet bottom outlet mode, is incubated 30min so that the abundant pyrogenation and carbonization of particle；Finally will Particle is added in the rotary kiln that rotating speed is 1.5r/min and is calcined, and 1050 are risen to from 800 DEG C with 2 DEG C/min programming rate DEG C, and constant temperature 60min, haydite is made.
Embodiment 2
The present embodiment use main mud type for：Low-water-content（w%<80%）River lacustrine facies powder cement mud.
A kind of curing agent that municipal sludge is processed into haydite, is made up of component A and B component, and component A accounts for municipal sludge weight Measure 8wt%, the municipal sludge weight 10wt% that B component is accounted for after component A solidifies；Component A is made up of the raw material of following parts by weight： 20 parts of P.O42.5 Portland cements, 60 parts of S95 granulated blast-furnace slags, 35 parts of C.II flyash, 25 parts of quick lime, sulfuric acid 1 part of salt exciting agent；B component is made up of the raw material of following parts by weight：7 parts of coke, 10 parts of sulfate fluxing agent, Alpha-alumina whisker 34 parts, 20 parts of silicon carbide whisker, 26 parts of aluminium borate whisker.
The component A of curing agent is added in municipal sludge, solidifies municipal sludge, moisture content is reduced and its outward transport of raising is strong Degree；Then the municipal sludge after solidification is transported to stock ground, adds the B component of curing agent, after mixed-forming, stacked one day, forge Fire to obtain haydite.
Described calcining is that the material of shaping is heated into 110 DEG C with 2 DEG C per minute, is incubated 1h, it is ensured that moisture content is down to Below 10wt%；Then dried particle is sent into pyrogenation and carbonization stove, 800 DEG C is heated to 5 DEG C/min speed, reversely fire Heated, aerating mode is top air inlet bottom outlet mode, is incubated 30min so that the abundant pyrogenation and carbonization of particle；Finally will Particle is added in the rotary kiln that rotating speed is 1.5r/min and is calcined, and 1050 are risen to from 800 DEG C with 2 DEG C/min programming rate DEG C, and constant temperature 60min, haydite is made.
Embodiment 3
The present embodiment use main mud type for：Low-water-content（w%<80%）River lacustrine facies powder cement mud.
A kind of curing agent that municipal sludge is processed into haydite, is made up of component A and B component, and component A accounts for municipal sludge weight Measure 15wt%, the municipal sludge weight 5wt% that B component is accounted for after component A solidifies；Component A is made up of the raw material of following parts by weight： 35 parts of P.O42.5 Portland cements, 40 parts of S95 granulated blast-furnace slags, 50 parts of C.II flyash, 18 parts of quick lime, sulfuric acid 3 parts of salt exciting agent；B component is made up of the raw material of following parts by weight：5 parts of coke, 15 parts of sulfate fluxing agent, Alpha-alumina whisker 23 parts, 42 parts of silicon carbide whisker, 15 parts of aluminium borate whisker.
The component A of curing agent is added in municipal sludge, solidifies municipal sludge, moisture content is reduced and its outward transport of raising is strong Degree；Then the municipal sludge after solidification is transported to stock ground, adds the B component of curing agent, after mixed-forming, stacked one day, forge Fire to obtain haydite.
Described calcining is that the material of shaping is heated into 100 DEG C with 1 DEG C per minute, is incubated 1h, it is ensured that moisture content is down to Below 10wt%；Then dried particle is sent into pyrogenation and carbonization stove, 800 DEG C is heated to 5 DEG C/min speed, reversely fire Heated, aerating mode is top air inlet bottom outlet mode, is incubated 30min so that the abundant pyrogenation and carbonization of particle；Finally will Particle is added in the rotary kiln that rotating speed is 1.5r/min and is calcined, and 1050 are risen to from 800 DEG C with 2 DEG C/min programming rate DEG C, and constant temperature 60min, haydite is made.
The foregoing is only presently preferred embodiments of the present invention, all equivalent changes done according to scope of the present invention patent with Modification, it should all belong to the covering scope of the present invention.

Claims (6)

  1. A kind of 1. curing agent that municipal sludge is processed into haydite, it is characterised in that：It is made up of component A and B component, component A accounts for Municipal sludge weight 8-15wt%, the municipal sludge weight 5-10wt% that B component is accounted for after component A solidifies；Component A is by following weight The raw material composition of part：P.O42.5 Portland cement 20-35 parts, S95 granulated blast-furnace slag 40-60 parts, C.II flyash 35-50 parts, quick lime 18-25 parts, sulphate activation agent 1-3 parts；B component is made up of the raw material of following parts by weight：Coke 5-7 Part, sulfate fluxing agent 10-15 parts, Alpha-alumina whisker 23-34 parts, silicon carbide whisker 20-42 parts, aluminium borate whisker 15-26 Part.
  2. 2. the curing agent according to claim 1 that municipal sludge is processed into haydite, it is characterised in that：By component A and B groups It is grouped into, component A accounts for municipal sludge weight 10wt%, the municipal sludge weight 8wt% that B component is accounted for after component A solidifies；Component A It is made up of the raw material of following parts by weight：30 parts of P.O42.5 Portland cements, 50 parts of S95 granulated blast-furnace slags, C.II fine coal 45 parts of ash, 20 parts of quick lime, 2 parts of sulphate activation agent；B component is made up of the raw material of following parts by weight：6 parts of coke, sulfate 12 parts of fluxing agent, 30 parts of Alpha-alumina whisker, 30 parts of silicon carbide whisker, 20 parts of aluminium borate whisker.
  3. 3. the curing agent according to claim 1 or 2 that municipal sludge is processed into haydite, it is characterised in that：Described sulphur Hydrochlorate exciting agent is that calcium sulfate and sodium sulphate are 3 in molar ratio:1 mixes.
  4. 4. the curing agent according to claim 1 or 2 that municipal sludge is processed into haydite, it is characterised in that：Described sulphur Hydrochlorate fluxing agent is that magnesium sulfate, calcium sulfate are 5 in molar ratio:3 mix.
  5. 5. a kind of application method of curing agent that municipal sludge is processed into haydite as described in claim any one of 1-2, its It is characterised by：The component A of curing agent is added in municipal sludge, solidifies municipal sludge；Then by the municipal sludge after solidification Transport adds the B component of curing agent to stock ground, after mixed-forming, stacks one day, calcines and haydite is made.
  6. 6. the application method of the curing agent according to claim 5 that municipal sludge is processed into haydite, it is characterised in that：Institute The calcining stated is that the material of shaping is heated into 100 ~ 110 DEG C with 1 ~ 2 DEG C per minute, is incubated 1h, it is ensured that moisture content is down to 10wt% Below；Then dried particle is sent into pyrogenation and carbonization stove, is heated to 800 DEG C with 5 DEG C/min speed, reverse fire is added Heat, aerating mode are top air inlet bottom outlet mode, are incubated 30min so that the abundant pyrogenation and carbonization of particle；Finally particle is added Enter into the rotary kiln that rotating speed is 1.5r/min and be calcined, 1050 DEG C are risen to from 800 DEG C with 2 DEG C/min programming rate, and it is permanent Warm 60min, haydite is made.
CN201710662340.4A 2017-08-04 2017-08-04 A kind of curing agent that municipal sludge is processed into haydite Pending CN107459305A (en)

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Cited By (2)

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Publication number Priority date Publication date Assignee Title
CN110015879A (en) * 2019-05-23 2019-07-16 唐山工业职业技术学院 A kind of groundwork firming agent for soft soil and preparation method thereof
CN110835247A (en) * 2018-08-16 2020-02-25 扬州大学 Emulsified asphalt and cement composite cementing material solidified sludge non-fired ceramsite

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EP0417705A1 (en) * 1989-09-11 1991-03-20 Onoda Cement Company, Ltd. Method and system for aqueous sewage sludge disposal
CN102381868A (en) * 2011-07-27 2012-03-21 浙江大学 Method for rapidly preparing ceramsite by utilizing mudflat sludge
CN103420666A (en) * 2013-07-26 2013-12-04 和县明生环保材料有限责任公司 Ore tailings ceramsite air brick and preparation method thereof
CN106836186A (en) * 2016-12-26 2017-06-13 福建港湾岩土工程集团有限公司 A kind of construction technology of utilizing solidified earth from sludge

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EP0417705A1 (en) * 1989-09-11 1991-03-20 Onoda Cement Company, Ltd. Method and system for aqueous sewage sludge disposal
CN102381868A (en) * 2011-07-27 2012-03-21 浙江大学 Method for rapidly preparing ceramsite by utilizing mudflat sludge
CN103420666A (en) * 2013-07-26 2013-12-04 和县明生环保材料有限责任公司 Ore tailings ceramsite air brick and preparation method thereof
CN106836186A (en) * 2016-12-26 2017-06-13 福建港湾岩土工程集团有限公司 A kind of construction technology of utilizing solidified earth from sludge

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110835247A (en) * 2018-08-16 2020-02-25 扬州大学 Emulsified asphalt and cement composite cementing material solidified sludge non-fired ceramsite
CN110835247B (en) * 2018-08-16 2021-11-09 扬州大学 Emulsified asphalt and cement composite cementing material solidified sludge non-fired ceramsite
CN110015879A (en) * 2019-05-23 2019-07-16 唐山工业职业技术学院 A kind of groundwork firming agent for soft soil and preparation method thereof
CN110015879B (en) * 2019-05-23 2022-07-29 唐山工业职业技术学院 Soft soil foundation curing agent and preparation method thereof

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