CN110511040A - A kind of environment-friendly type haydite and preparation method thereof - Google Patents
A kind of environment-friendly type haydite and preparation method thereof Download PDFInfo
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- CN110511040A CN110511040A CN201910922803.5A CN201910922803A CN110511040A CN 110511040 A CN110511040 A CN 110511040A CN 201910922803 A CN201910922803 A CN 201910922803A CN 110511040 A CN110511040 A CN 110511040A
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- 238000002360 preparation method Methods 0.000 title claims abstract description 23
- 238000012545 processing Methods 0.000 claims abstract description 55
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 47
- 239000010802 sludge Substances 0.000 claims abstract description 47
- 239000002994 raw material Substances 0.000 claims abstract description 34
- 238000004519 manufacturing process Methods 0.000 claims abstract description 29
- 239000002245 particle Substances 0.000 claims abstract description 24
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 19
- 239000010813 municipal solid waste Substances 0.000 claims abstract description 18
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 18
- 239000010881 fly ash Substances 0.000 claims abstract description 17
- 238000000746 purification Methods 0.000 claims abstract description 13
- 230000008961 swelling Effects 0.000 claims abstract description 13
- 239000004927 clay Substances 0.000 claims abstract description 11
- 239000006184 cosolvent Substances 0.000 claims abstract description 11
- 239000010842 industrial wastewater Substances 0.000 claims abstract description 11
- -1 gangue Substances 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims abstract description 9
- 239000003500 flue dust Substances 0.000 claims abstract description 7
- 239000010801 sewage sludge Substances 0.000 claims abstract description 7
- 239000000498 cooling water Substances 0.000 claims abstract description 6
- 230000008569 process Effects 0.000 claims abstract description 4
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 56
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 33
- 239000010865 sewage Substances 0.000 claims description 31
- 239000000292 calcium oxide Substances 0.000 claims description 28
- 235000012255 calcium oxide Nutrition 0.000 claims description 28
- 238000002156 mixing Methods 0.000 claims description 27
- 238000001354 calcination Methods 0.000 claims description 24
- 238000004382 potting Methods 0.000 claims description 21
- 238000001035 drying Methods 0.000 claims description 20
- 239000000047 product Substances 0.000 claims description 12
- 229910052799 carbon Inorganic materials 0.000 claims description 11
- 238000000465 moulding Methods 0.000 claims description 11
- 239000004576 sand Substances 0.000 claims description 11
- 239000011265 semifinished product Substances 0.000 claims description 11
- 238000004659 sterilization and disinfection Methods 0.000 claims description 11
- 229910052570 clay Inorganic materials 0.000 claims description 10
- 238000010304 firing Methods 0.000 claims description 10
- 238000001816 cooling Methods 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 239000000843 powder Substances 0.000 claims description 8
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 7
- 239000000428 dust Substances 0.000 claims description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 230000008030 elimination Effects 0.000 claims description 6
- 238000003379 elimination reaction Methods 0.000 claims description 6
- 239000008213 purified water Substances 0.000 claims description 6
- 230000001954 sterilising effect Effects 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 6
- 229910052717 sulfur Inorganic materials 0.000 claims description 6
- 239000011593 sulfur Substances 0.000 claims description 6
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 5
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 5
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 5
- 239000011469 building brick Substances 0.000 claims description 5
- 229910052681 coesite Inorganic materials 0.000 claims description 5
- 239000004567 concrete Substances 0.000 claims description 5
- 229910052593 corundum Inorganic materials 0.000 claims description 5
- 229910052906 cristobalite Inorganic materials 0.000 claims description 5
- 238000004332 deodorization Methods 0.000 claims description 5
- 230000003009 desulfurizing effect Effects 0.000 claims description 5
- 239000008187 granular material Substances 0.000 claims description 5
- 239000004615 ingredient Substances 0.000 claims description 5
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 5
- 239000004571 lime Substances 0.000 claims description 5
- 239000004579 marble Substances 0.000 claims description 5
- 235000012054 meals Nutrition 0.000 claims description 5
- 238000003801 milling Methods 0.000 claims description 5
- 230000001376 precipitating effect Effects 0.000 claims description 5
- 239000004071 soot Substances 0.000 claims description 5
- 239000007921 spray Substances 0.000 claims description 5
- 229910052682 stishovite Inorganic materials 0.000 claims description 5
- 238000003860 storage Methods 0.000 claims description 5
- 229910052905 tridymite Inorganic materials 0.000 claims description 5
- 229910001845 yogo sapphire Inorganic materials 0.000 claims description 5
- 239000005864 Sulphur Substances 0.000 claims 1
- 238000000498 ball milling Methods 0.000 claims 1
- 239000007788 liquid Substances 0.000 claims 1
- 239000002574 poison Substances 0.000 claims 1
- 231100000614 poison Toxicity 0.000 claims 1
- 230000007613 environmental effect Effects 0.000 abstract description 9
- 239000002699 waste material Substances 0.000 abstract description 7
- 239000011230 binding agent Substances 0.000 abstract description 4
- 238000011161 development Methods 0.000 abstract description 4
- HGUFODBRKLSHSI-UHFFFAOYSA-N 2,3,7,8-tetrachloro-dibenzo-p-dioxin Chemical compound O1C2=CC(Cl)=C(Cl)C=C2OC2=C1C=C(Cl)C(Cl)=C2 HGUFODBRKLSHSI-UHFFFAOYSA-N 0.000 abstract description 3
- 238000004134 energy conservation Methods 0.000 abstract description 3
- 239000002910 solid waste Substances 0.000 abstract description 3
- DNJIEGIFACGWOD-UHFFFAOYSA-N ethanethiol Chemical compound CCS DNJIEGIFACGWOD-UHFFFAOYSA-N 0.000 abstract description 2
- 238000003913 materials processing Methods 0.000 abstract description 2
- 238000006477 desulfuration reaction Methods 0.000 abstract 1
- 230000023556 desulfurization Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 40
- 238000010521 absorption reaction Methods 0.000 description 8
- 241000894006 Bacteria Species 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000010413 gardening Methods 0.000 description 1
- 238000003837 high-temperature calcination Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/06—Spray cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/54—Nitrogen compounds
- B01D53/56—Nitrogen oxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/68—Halogens or halogen compounds
- B01D53/70—Organic halogen compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- 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
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/02—Agglomerated materials, e.g. artificial aggregates
- C04B18/027—Lightweight materials
-
- 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
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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- 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
- C04B35/62204—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products using waste materials or refuse
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- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/02—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by adding chemical blowing agents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/20—Halogens or halogen compounds
- B01D2257/206—Organic halogen compounds
- B01D2257/2064—Chlorine
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3418—Silicon oxide, silicic acids or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
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- 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
- C04B2235/606—Drying
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- 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
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- 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
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Abstract
The invention discloses a kind of environment-friendly type haydites and preparation method thereof, more particularly to environment-friendly materials processing technique field, including processing sludge, gangue, flyash, rubbish particle, silica, swelling agent and cosolvent, the processing sludge includes domestic sewage sludge, industrial wastewater sludge and bed-silt.By the present invention in that with processing sludge, gangue, flyash and rubbish particle do main production raw material, convenient for obtaining, production cost is low, gangue replaces clay as binder as Coal-solid-waste, reduce environmental disruption, garbage waste is produced into product for building, energy conservation and environmental protection, convenient for adjusting the coefficient of expansion, the haydite of production is light, intensity is high, quality is good, make exhaust gas temperature effective temperature-reducing using cooler and the cooperation of multiple stage circulation cooling water tank, and desulfurization, denitration process, eliminate dioxin, stench and flue dust, production waste purification is precipitated and is recycled, it economizes on resources, protect environment, it is advantageously implemented sustainable development.
Description
Technical field
The present invention relates to environment-friendly materials processing technique field, it is more particularly related to a kind of environment-friendly type haydite and
Preparation method.
Background technique
Haydite is a kind of lightweight aggregate of production foamed in rotary kiln.It has spherical shape, and surface is smooth and hard
Firmly, internal is in honeycomb, has excellent performance, if density is low, cylindrical compress strength is high, porosity is high, coefficient of softing height, frost resistance
Well, alkali resistant aggregate reaction is excellent etc., is widely applied and building materials, gardening, food and drink, flame-proof thermal insulation material, chemical industry, petroleum
Equal departments, application field is more and more wider, but dioxin toxic gas can be generated in the traditional handicraft of haydite, and there are serious pollutions
Environmental problem.
The patent of invention of 104163617 B of patent application publication CN disclose a kind of haydite production method and haydite and
The application of haydite, including flyash, waterworks sludge, clay are raw material, and oyster shell is the haydite preparation method of main additive
And the purposes of this haydite.The pore structure that haydite is improved by addition oyster shell, increases adsorption capacity and exchange capacity, makes
It has more excellent good water correction effect.Sewerage disposing haydite raw material of the present invention mainly use waste-flyash and
Sludge, it is the treatment of wastes with processes of wastes against one another, low in cost, be conducive to environment sustainable development.This haydite is that a kind of good functional water processing is filled out
Material.Due into haydite rough surface there is bigger serface to be easy to bio-film colonization effect by high-temperature calcination, and it is light strong
Degree height can bear high load capacity hydraulic blow with stability for a long time, and there is bio-film colonization to carry out denitrification dephosphorization function, be a kind of water
The excellent filler of process performance, can be used for the water treatment technologies such as biofilter, artificial swamp.
But the haydite production method and haydite that provide in above-mentioned technical proposal and haydite are applied in practice still
Need a large amount of clays as binder, excavating clay still will cause environmental disruption, the haydite internal void mistake of production technology production
Greatly, and its coefficient of expansion is not easy to adjust.
Summary of the invention
In order to overcome the drawbacks described above of the prior art, the embodiment of the present invention provides a kind of environment-friendly type haydite and its preparation side
Method does main production raw material by using processing sludge, gangue, flyash and rubbish particle, convenient for obtaining, production cost
Low, gangue replaces clay as binder as Coal-solid-waste, reduces environmental disruption, garbage waste is produced into building
With product, it is beneficial to energy conservation environmental protection, silica is added and improves silicone content, improves the refractoriness of haydite, quick lime is quenched to powder, drop
Its low fusing point, and swelling agent is added, the adjusting coefficient of expansion is convenient for make ball using drying-molding roasting technique of preheating-expansion-
Grain raw material can even inflation, molecule reaction slowly stablizes, improves the porosity of haydite, keep its lighter, and intensity is high, quality
It is good.
To achieve the above object, the invention provides the following technical scheme: a kind of environment-friendly type haydite, wherein used in major ingredient
It by weight include: sludge 45-55 parts, 20-30 parts of gangue, 8-12 parts of flyash, 8-12 parts of rubbish particle, silica 1- of processing
5 parts, 8-10 parts of swelling agent and 1-5 parts of cosolvent.
Preferably, the processing sludge includes domestic sewage sludge, industrial wastewater sludge and bed-silt, and the processing is dirty
The moisture content of mud is 9-15%.
Preferably, the cosolvent is specially quick lime, and the molar ratio of the quick lime and raw materials for production is set as 1-6:
200。
Preferably, the haydite is for making building brick, water purification filter or environmentally friendly planting cultivation.
A kind of preparation method of environment-friendly type haydite, concrete operation step are as follows:
Step 1: processing sludge, gangue, flyash, rubbish particle, silica and swelling agent are taken in proportion, is respectively put into
Milling, is added quick lime and water for powder obtained after evenly mixing in ball mill, obtains potting mixing after reacting sufficiently;
Step 2: the potting mixing that step 1 is obtained is dried, and when potting mixing moisture content in 20-30%, is made
It is granulated with disc type marble forming machine, obtains spherolite raw material;
Step 3: being dried spherolite raw material made from step 2, and the spherolite raw material after drying are put into preheating in rotary kiln
Processing, then improves rotary kiln firing temperature and carries out thermostatic expansion calcining, and it is permanent finally to promote the progress of rotary kiln firing temperature again
Temperature molding calcining, obtains ceramsite sand semi-finished product;
Step 4: the ceramsite sand semi-finished product fired in step 3 are put into cylinder cooler and slowly cool to 300-400
It DEG C takes out and to stand, it is sieved when being cooled to room temperature, obtains finished product haydite, it is broken that the particle and bulk that screen out return to raw material
It re-works;
Finished product haydite: being packed and is transported storage by step 5, completes the production preparation of haydite;
Step 6: the exhaust gas generated in step 4 is collected and is handled, at the beginning of the exhaust gas of collection is first passed through cooler
Cooling processing is walked, the exhaust gas utilization multiple stage circulation cooling water tank reducing temperature twice after cooling, extends flue length, realization is repeatedly changed
Heat, so that exhaust gas temperature be made to be down to 200 DEG C hereinafter, dedusting and desulfurizing tower is passed through again, at sulfur elimination and denitrfying agent preparation exhaust gas
Manage solution, by exhaust-gas treatment solution boils and by atomizer to exhaust gas spray mix, bond soot dust granule, to exhaust gas into
The processing of row desulphurization and denitration, flue dust are fallen with water droplet, and final purification exhaust gas is discharged from chimney;
Step 7: being collected and handle to the sewage generated in manufacturing process, and sewage is passed through sewage purifier precipitating,
Active carbon, clay and quick lime and sewage mixed processing is added, is adsorbed the polluter in sewage, decoloration, deodorization are simultaneously killed
Bacterium disinfection, purified water is recycled later.
Preferably, sludge is handled in the step 1 to be added by domestic sewage sludge, industrial wastewater sludge and bed-silt
Lime reaction sterilization, and handle to obtain using solar energy sludge drying device, the main chemical compositions of potting mixing are Al2O3:
16-21%, SiO2: 35-45%, Fe2O3: 5.5-10.5%, CaO:5-15% and C:15-25%.
Preferably, drying temperature is set as 100-120 DEG C in the step 2, and spherolite raw meal particulate is dimensioned to 8-
15mm。
Preferably, drying temperature is 70-80 DEG C, drying time 1-2h, preheating temperature 400-600 in the step 3
DEG C, preheating time 20-30min, thermostatic expansion calcination temperature is 800-1000 DEG C, and thermostatic expansion calcination time is 40-
60min, constant-temperature molding calcination temperature are 1200-1300 DEG C, and constant-temperature molding calcination time is 10-30min.
Technical effect and advantage of the invention:
1, main production raw material is done by using processing sludge, gangue, flyash and rubbish particle, it is raw convenient for obtaining
Produce it is at low cost, gangue as Coal-solid-waste replace clay be used as binder, reduction environmental disruption, garbage waste is produced
At product for building, it is beneficial to energy conservation environmental protection, silica is added and improves silicone content, improves the refractoriness of haydite, quick lime is to powder
It is quenched, its fusing point is reduced, and swelling agent is added convenient for adjusting the coefficient of expansion, uses the molding roasting work of drying-preheating-expansion-
Skill enables spherolite raw material even inflation, and molecule reaction slowly stablizes, improves the porosity of haydite, keep its lighter, intensity
Height, quality are good;
2, by preparing potting mixing, preparing spherolite raw material, prepare ceramsite sand semi-finished product and be packed and stored five steps lifes
The haydite of processing is produced, formula rate is moderate, controls by processing temperature and time, can effectively ensure that the porosity of haydite and resistance to
Compressive Strength increases its structural stability, can be improved waterproof, the humidity resistance of construction wall applied to building field, in haydite
Portion's pore structure is conducive to sound-insulating and heat-insulating, and heat insulation effect is good, additionally it is possible to and it is applied to field of purification and environment protection field, is widely used,
Facilitate popularization;
3, cold using cooler and multiple stage circulation by being collected processing to the exhaust gas and sewage that generate in production process
But exhaust gas temperature is down to 200 DEG C hereinafter, prepare exhaust-gas treatment solution using sulfur elimination and denitrfying agent by water tank cooperation, to exhaust gas into
The processing of row desulphurization and denitration, eliminates dioxin, stench and flue dust, sewage purification is precipitated, and active carbon, clay and quick lime is added
Absorption, sterilization and disinfection, are recycled purified water, are conducive to economize on resources, and protect environment, realize sustainable development.
Specific embodiment
It is clearly and completely described below in conjunction with the technical solution of the embodiment of the present invention, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
Embodiment 1:
The present invention provides a kind of environment-friendly type haydites, wherein used in major ingredient by weight include: processing 45 parts of sludge,
20 parts of gangue, 8 parts of flyash, 8 parts of rubbish particle, 1 part of silica, 8 parts of swelling agent and 1 part of cosolvent;
Further, the processing sludge includes domestic sewage sludge, industrial wastewater sludge and bed-silt, the processing
The moisture content of sludge is 9%;
Further, the cosolvent is specially quick lime, and the molar ratio of the quick lime and raw materials for production is set as 1:
200;
Further, the haydite is for making building brick, water purification filter or environmentally friendly planting cultivation.
A kind of preparation method of environment-friendly type haydite, concrete operation step are as follows:
Step 1: processing sludge, gangue, flyash, rubbish particle, silica and swelling agent, sanitary sewage are taken in proportion
Lime reaction sterilization is added in sludge, industrial wastewater sludge and bed-silt, and dry using solar energy sludge drying device, will be former
Material is respectively put into milling in ball mill, and quick lime and water is added in powder obtained after evenly mixing, obtains after reacting sufficiently
Potting mixing, the main chemical compositions of potting mixing are Al2O3: 16%, SiO2: 35%, Fe2O3: 5.5%, CaO:5% and C:
15%;
Step 2: the potting mixing that step 1 is obtained is dried, and drying temperature is set as 100 DEG C, to potting mixing
Moisture content is granulated at 20% using disc type marble forming machine, and spherolite raw material are obtained, and spherolite raw meal particulate is dimensioned to 8mm;
Step 3: being dried spherolite raw material made from step 2, and drying temperature is 70 DEG C, drying time 1h, does
Spherolite raw material after dry are put into preheating in rotary kiln processing, and preheating temperature is 400 DEG C, preheating time 20min, then improve revolution
Kiln firing temperature carries out thermostatic expansion calcining, and 800 DEG C of calcining at constant temperature 40min finally promote rotary kiln firing temperature again and carry out
Constant-temperature molding calcining, 1200 DEG C of calcining at constant temperature 10min obtain ceramsite sand semi-finished product;
Step 4: the ceramsite sand semi-finished product fired in step 3 are put into cylinder cooler and slowly cools to 300 DEG C and takes
It stands, it is sieved out when being cooled to room temperature, obtain finished product haydite, it is broken again that the particle and bulk screened out returns to raw material
Processing;
Finished product haydite: being packed and is transported storage by step 5, completes the production preparation of haydite;
Step 6: the exhaust gas generated in step 4 is collected and is handled, at the beginning of the exhaust gas of collection is first passed through cooler
Cooling processing is walked, the exhaust gas utilization multiple stage circulation cooling water tank reducing temperature twice after cooling, extends flue length, realization is repeatedly changed
Heat, so that exhaust gas temperature be made to be down to 200 DEG C hereinafter, dedusting and desulfurizing tower is passed through again, at sulfur elimination and denitrfying agent preparation exhaust gas
Manage solution, by exhaust-gas treatment solution boils and by atomizer to exhaust gas spray mix, bond soot dust granule, to exhaust gas into
The processing of row desulphurization and denitration, flue dust are fallen with water droplet, and final purification exhaust gas is discharged from chimney;
Step 7: being collected and handle to the sewage generated in manufacturing process, and sewage is passed through sewage purifier precipitating,
Active carbon, clay and quick lime and sewage mixed processing is added, is adsorbed the polluter in sewage, decoloration, deodorization are simultaneously killed
Bacterium disinfection, purified water is recycled later.
The haydite prepared in the present embodiment, size particles uniformly, rule it is mellow and full, be smooth to the touch, without dust, without strong thorn
Swash property smell, in addition in the present embodiment to the performance indicators such as the bulk density of haydite, cylindrical compress strength, 1h water absorption rate and porosity into
Row measurement, as the result is shown: bulk density 830kg/m3, density rating be 800 grades, cylindrical compress strength 5.1Mpa, 1h water absorption rate
For 4.8%, porosity 66%, but exist and slightly burn life, color is dim, and intensity is undesirable.
Embodiment 2:
The present invention provides a kind of environment-friendly type haydites, wherein used in major ingredient by weight include: processing 50 parts of sludge,
25 parts of gangue, 15 parts of flyash, 15 parts of rubbish particle, 3 parts of silica, 9 parts of swelling agent and 3 parts of cosolvent;
Further, the processing sludge includes domestic sewage sludge, industrial wastewater sludge and bed-silt, the processing
The moisture content of sludge is 12%;
Further, the cosolvent is specially quick lime, and the molar ratio of the quick lime and raw materials for production is set as 3:
200;
Further, the haydite is for making building brick, water purification filter or environmentally friendly planting cultivation.
A kind of preparation method of environment-friendly type haydite, concrete operation step are as follows:
Step 1: processing sludge, gangue, flyash, rubbish particle, silica and swelling agent, sanitary sewage are taken in proportion
Lime reaction sterilization is added in sludge, industrial wastewater sludge and bed-silt, and dry using solar energy sludge drying device, will be former
Material is respectively put into milling in ball mill, and quick lime and water is added in powder obtained after evenly mixing, obtains after reacting sufficiently
Potting mixing, the main chemical compositions of potting mixing are Al2O3: 18%, SiO2: 40%, Fe2O3: 8%, CaO:10% and C:
20%;
Step 2: the potting mixing that step 1 is obtained is dried, and drying temperature is set as 110 DEG C, to potting mixing
Moisture content is granulated at 25% using disc type marble forming machine, and spherolite raw material are obtained, and spherolite raw meal particulate is dimensioned to 12mm;
Step 3: being dried spherolite raw material made from step 2, and drying temperature is 75 DEG C, drying time 1.5h,
Spherolite raw material after drying are put into preheating in rotary kiln processing, and preheating temperature is 500 DEG C, then preheating time 25min is improved back
Rotary kiln firing temperature carry out thermostatic expansion calcining, 900 DEG C of calcining at constant temperature 50min, finally again promoted rotary kiln firing temperature into
The calcining of row constant-temperature molding, 1250 DEG C of calcining at constant temperature 20min obtain ceramsite sand semi-finished product;
Step 4: the ceramsite sand semi-finished product fired in step 3 are put into cylinder cooler and slowly cools to 350 DEG C and takes
It stands, it is sieved out when being cooled to room temperature, obtain finished product haydite, it is broken again that the particle and bulk screened out returns to raw material
Processing;
Finished product haydite: being packed and is transported storage by step 5, completes the production preparation of haydite;
Step 6: the exhaust gas generated in step 4 is collected and is handled, at the beginning of the exhaust gas of collection is first passed through cooler
Cooling processing is walked, the exhaust gas utilization multiple stage circulation cooling water tank reducing temperature twice after cooling, extends flue length, realization is repeatedly changed
Heat, so that exhaust gas temperature be made to be down to 200 DEG C hereinafter, dedusting and desulfurizing tower is passed through again, at sulfur elimination and denitrfying agent preparation exhaust gas
Manage solution, by exhaust-gas treatment solution boils and by atomizer to exhaust gas spray mix, bond soot dust granule, to exhaust gas into
The processing of row desulphurization and denitration, flue dust are fallen with water droplet, and final purification exhaust gas is discharged from chimney;
Step 7: being collected and handle to the sewage generated in manufacturing process, and sewage is passed through sewage purifier precipitating,
Active carbon, clay and quick lime and sewage mixed processing is added, is adsorbed the polluter in sewage, decoloration, deodorization are simultaneously killed
Bacterium disinfection, purified water is recycled later.
Comparative example 1, the haydite prepared in the present embodiment, size particles are uniformly, rule is mellow and full, are smooth to the touch, without powder
Dirt, without strong pungent smell, in addition to the bulk density of haydite, cylindrical compress strength, 1h water absorption rate and hole in the present embodiment
The performance indicators such as rate measure, as the result is shown: bulk density 770kg/m3, density rating be 700 grades, cylindrical compress strength is
6.2Mpa, 1h water absorption rate is 4.2%, porosity 74%, bright in colour, and uniformity, intensity is high, stable structure.
Embodiment 3:
The present invention provides a kind of environment-friendly type haydites, wherein used in major ingredient by weight include: processing 55 parts of sludge,
30 parts of gangue, 12 parts of flyash, 12 parts of rubbish particle, 5 parts of silica, 10 parts of swelling agent and 5 parts of cosolvent;
Further, the processing sludge includes domestic sewage sludge, industrial wastewater sludge and bed-silt, the processing
The moisture content of sludge is 15%;
Further, the cosolvent is specially quick lime, and the molar ratio of the quick lime and raw materials for production is set as 3:
100;
Further, the haydite is for making building brick, water purification filter or environmentally friendly planting cultivation.
A kind of preparation method of environment-friendly type haydite, concrete operation step are as follows:
Step 1: processing sludge, gangue, flyash, rubbish particle, silica and swelling agent, sanitary sewage are taken in proportion
Lime reaction sterilization is added in sludge, industrial wastewater sludge and bed-silt, and dry using solar energy sludge drying device, will be former
Material is respectively put into milling in ball mill, and quick lime and water is added in powder obtained after evenly mixing, obtains after reacting sufficiently
Potting mixing, the main chemical compositions of potting mixing are Al2O3: 21%, SiO2: 45%, Fe2O3: 10.5%, CaO:15% and C:
25%;
Step 2: the potting mixing that step 1 is obtained is dried, and drying temperature is set as 120 DEG C, to potting mixing
Moisture content is granulated at 30% using disc type marble forming machine, and spherolite raw material are obtained, and spherolite raw meal particulate is dimensioned to 15mm;
Step 3: being dried spherolite raw material made from step 2, and drying temperature is 80 DEG C, drying time 2h, does
Spherolite raw material after dry are put into preheating in rotary kiln processing, and preheating temperature is 600 DEG C, preheating time 30min, then improve revolution
Kiln firing temperature carries out thermostatic expansion calcining, and 1000 DEG C of calcining at constant temperature 60min finally promote rotary kiln firing temperature again and carry out
Constant-temperature molding calcining, 1300 DEG C of calcining at constant temperature 30min obtain ceramsite sand semi-finished product;
Step 4: the ceramsite sand semi-finished product fired in step 3 are put into cylinder cooler and slowly cools to 400 DEG C and takes
It stands, it is sieved out when being cooled to room temperature, obtain finished product haydite, it is broken again that the particle and bulk screened out returns to raw material
Processing;
Finished product haydite: being packed and is transported storage by step 5, completes the production preparation of haydite;
Step 6: the exhaust gas generated in step 4 is collected and is handled, at the beginning of the exhaust gas of collection is first passed through cooler
Cooling processing is walked, the exhaust gas utilization multiple stage circulation cooling water tank reducing temperature twice after cooling, extends flue length, realization is repeatedly changed
Heat, so that exhaust gas temperature be made to be down to 200 DEG C hereinafter, dedusting and desulfurizing tower is passed through again, at sulfur elimination and denitrfying agent preparation exhaust gas
Manage solution, by exhaust-gas treatment solution boils and by atomizer to exhaust gas spray mix, bond soot dust granule, to exhaust gas into
The processing of row desulphurization and denitration, flue dust are fallen with water droplet, and final purification exhaust gas is discharged from chimney;
Step 7: being collected and handle to the sewage generated in manufacturing process, and sewage is passed through sewage purifier precipitating,
Active carbon, clay and quick lime and sewage mixed processing is added, is adsorbed the polluter in sewage, decoloration, deodorization are simultaneously killed
Bacterium disinfection, purified water is recycled later.
Comparative example 1 and 2, the haydite prepared in the present embodiment, size particles are uniformly, rule is mellow and full, are smooth to the touch, nothing
Strong pungent smell, in addition to property such as the bulk density of haydite, cylindrical compress strength, 1h water absorption rate and porositys in the present embodiment
Energy index measures, as the result is shown: bulk density 720kg/m3, density rating be 700 grades, cylindrical compress strength 5.3Mpa,
1h water absorption rate is 4.6%, porosity 79%, but there is dust on slightly scorification, haydite surface.
Following table is obtained according to embodiment 1-3:
As seen from the above table, 2 chinese raw materials ratio of embodiment is moderate, and processing temperature and time are moderate, and dirty using processing
50 parts of mud, 25 parts of gangue, 15 parts of flyash and 15 parts of rubbish particle, reduce production cost, have obtained waste effectively
It utilizes, meets environmental protection concept and the Scientific Outlook on Development, obtained haydite size particles are uniformly, rule is mellow and full, are smooth to the touch, without strong
Penetrating odor, the performance indicators such as bulk density, cylindrical compress strength, 1h water absorption rate and porosity are optimal level, haydite
Quality is high, easy to produce and popularization.
Finally, it should be noted that the foregoing is only a preferred embodiment of the present invention, it is not intended to restrict the invention,
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (8)
1. a kind of environment-friendly type haydite, it is characterised in that: wherein used in major ingredient by weight include: processing sludge 45-55 parts,
20-30 parts of gangue, 8-12 parts of flyash, 8-12 parts of rubbish particle, 1-5 parts of silica, 8-10 parts of swelling agent and cosolvent 1-5
Part.
2. a kind of environment-friendly type haydite according to claim 1, it is characterised in that: the processing sludge includes sanitary sewage dirt
The moisture content of mud, industrial wastewater sludge and bed-silt, the processing sludge is 9-15%.
3. a kind of environment-friendly type haydite according to claim 1, it is characterised in that: the cosolvent is specially quick lime, institute
The molar ratio for stating quick lime and raw materials for production is set as 1-6: 200.
4. a kind of environment-friendly type haydite according to claim 1, it is characterised in that: the haydite for make building brick,
Water purification filter or environmentally friendly planting cultivation.
5. a kind of preparation method of environment-friendly type haydite, it is characterised in that: concrete operation step are as follows:
Step 1: processing sludge, gangue, flyash, rubbish particle, silica and swelling agent are taken in proportion, is respectively put into ball milling
Milling, is added quick lime and water for powder obtained after evenly mixing in machine, obtains potting mixing after reacting sufficiently;
Step 2: the potting mixing that step 1 is obtained is dried, and when potting mixing moisture content in 20-30%, uses disk
Formula marble forming machine is granulated, and obtains spherolite raw material;
Step 3: being dried spherolite raw material made from step 2, and the spherolite raw material after drying are put into preheating in rotary kiln processing,
Then it improves rotary kiln firing temperature and carries out thermostatic expansion calcining, finally promote rotary kiln firing temperature again and carry out constant-temperature molding
Calcining, obtains ceramsite sand semi-finished product;
Step 4: the ceramsite sand semi-finished product fired in step 3 are put into and slowly cools to 300-400 DEG C in cylinder cooler and takes
It stands, it is sieved out when being cooled to room temperature, obtain finished product haydite, it is broken again that the particle and bulk screened out returns to raw material
Processing;
Finished product haydite: being packed and is transported storage by step 5, completes the production preparation of haydite;
Step 6: being collected and handle to the exhaust gas generated in step 4, and the exhaust gas of collection is first passed through cooler and is tentatively dropped
Exhaust gas utilization multiple stage circulation cooling water tank reducing temperature twice after cooling is extended flue length by temperature processing, realizes repeatedly heat exchange,
To make exhaust gas temperature be down to 200 DEG C hereinafter, being passed through dedusting and desulfurizing tower again, it is molten to prepare exhaust-gas treatment using sulfur elimination and denitrfying agent
Liquid sprays mixing to exhaust gas by exhaust-gas treatment solution boils and by atomizer, bonds soot dust granule, take off to exhaust gas
Sulphur, denitration process, flue dust are fallen with water droplet, and final purification exhaust gas is discharged from chimney;
Step 7: being collected and handle to the sewage generated in manufacturing process, and sewage is passed through sewage purifier precipitating, is added
Active carbon, clay and quick lime and sewage mixed processing, are adsorbed the polluter in sewage, and decoloration, deodorization and sterilization disappear
Purified water is recycled later for poison.
6. a kind of preparation method of environment-friendly type haydite according to claim 5, it is characterised in that: handled in the step 1
Lime reaction sterilization is added by domestic sewage sludge, industrial wastewater sludge and bed-silt in sludge, and dry using solar energy sludge
Change equipment to handle to obtain, the main chemical compositions of potting mixing are Al2O3: 16-21%, SiO2: 35-45%, Fe203: 5.5-
10.5%, CaO:5-15% and C:15-25%.
7. a kind of preparation method of environment-friendly type haydite according to claim 5, it is characterised in that: dry in the step 2
Temperature setting is 100-120 DEG C, and spherolite raw meal particulate is dimensioned to 8-15mm.
8. a kind of preparation method of environment-friendly type haydite according to claim 5, it is characterised in that: dried in the step 3
Temperature is 70-80 DEG C, drying time 1-2h, and preheating temperature is 400-600 DEG C, preheating time 20-30min, thermostatic expansion
Calcination temperature is 800-1000 DEG C, and thermostatic expansion calcination time is 40-60min, and constant-temperature molding calcination temperature is 1200-1300
DEG C, constant-temperature molding calcination time is 10-30min.
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CN111847938A (en) * | 2020-07-06 | 2020-10-30 | 上海大学 | Method for producing environment-friendly ceramsite by utilizing biogas residue hydrothermal carbon |
CN113499754A (en) * | 2021-06-23 | 2021-10-15 | 国家煤化工产品质量监督检验中心(安徽)(淮南市产品质量监督检验所) | Composite adsorption material based on coal gangue and coal ash and preparation process thereof |
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