CN1150975C - Spherical porous light haydite for treating waste water and its production method - Google Patents
Spherical porous light haydite for treating waste water and its production method Download PDFInfo
- Publication number
- CN1150975C CN1150975C CNB021127557A CN02112755A CN1150975C CN 1150975 C CN1150975 C CN 1150975C CN B021127557 A CNB021127557 A CN B021127557A CN 02112755 A CN02112755 A CN 02112755A CN 1150975 C CN1150975 C CN 1150975C
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- China
- Prior art keywords
- haydite
- spherical porous
- porous light
- minute
- red mud
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- 239000002351 wastewater Substances 0.000 title description 5
- 239000000463 material Substances 0.000 claims abstract description 22
- 239000002994 raw material Substances 0.000 claims abstract description 21
- 239000010881 fly ash Substances 0.000 claims abstract description 17
- 239000011148 porous material Substances 0.000 claims abstract description 16
- 239000004927 clay Substances 0.000 claims abstract description 15
- 238000005245 sintering Methods 0.000 claims abstract description 10
- 239000011230 binding agent Substances 0.000 claims abstract 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 14
- 239000000843 powder Substances 0.000 claims description 14
- 229910052799 carbon Inorganic materials 0.000 claims description 13
- 238000009628 steelmaking Methods 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 11
- 239000000428 dust Substances 0.000 claims description 10
- 239000010445 mica Substances 0.000 claims description 5
- 229910052618 mica group Inorganic materials 0.000 claims description 5
- 238000004065 wastewater treatment Methods 0.000 claims description 5
- 238000001354 calcination Methods 0.000 claims description 4
- 239000003610 charcoal Substances 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 4
- 238000005469 granulation Methods 0.000 claims description 4
- 230000003179 granulation Effects 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 3
- 239000011707 mineral Substances 0.000 claims description 3
- 239000008188 pellet Substances 0.000 claims description 3
- 239000002699 waste material Substances 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 239000002817 coal dust Substances 0.000 claims description 2
- 238000010348 incorporation Methods 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 239000004033 plastic Substances 0.000 claims description 2
- 229920003023 plastic Polymers 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 239000011499 joint compound Substances 0.000 claims 3
- 238000010304 firing Methods 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 10
- 239000002689 soil Substances 0.000 abstract description 2
- 238000003723 Smelting Methods 0.000 abstract 1
- 239000004568 cement Substances 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 238000001914 filtration Methods 0.000 abstract 1
- 239000002440 industrial waste Substances 0.000 abstract 1
- 239000002893 slag Substances 0.000 abstract 1
- 238000005273 aeration Methods 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 3
- 230000015271 coagulation Effects 0.000 description 3
- 238000005345 coagulation Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 239000010865 sewage Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000003463 adsorbent Substances 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000002894 chemical waste Substances 0.000 description 1
- 239000010883 coal ash Substances 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Abstract
The present invention relates to spherical porous light haydite and a manufacturing method thereof, and the haydite is produced by high-temperature sintering in the way that industrial waste slag steel-smelting red mud and fly ash are used as principal raw materials, and clay soil is used as binding agents; moderate amounts of pore forming agents are added. The produced haydite is especially used for water treatment filtering materials, and the performance index of the produced haydite accords with requirements for environment protecting water treatment. Haydite products have the following quality: 4 to 10 m<2>/g of specific surface areas, 50 to 250 mu m of average pore sizes, 1.40 to 1.80 g/cm<3> of apparent density and 30 to 40% of porosity. The present invention has the characteristics of wide sources of raw materials, simple production technology, low cost, etc., and simultaneously, the light porous haydite can be produced by utilizing production devices and technology of the existing cement plants.
Description
Technical field:
The invention belongs to technical field of waste water processing, being specifically related to a kind of is that primary raw material is produced spherical porous light haydite and manufacture method thereof through high temperature sintering with industrial residue steel-making red mud, flyash.
Background technology:
At present the method that industry and city domestic sewage are administered is a lot, as the employing coagulation improvement dyeing waste water that combines with chemical oxidation; Adopt the coagulation improvement city domestic sewage that combines with bio-aeration; Adopt combine with charcoal absorption deep treatment coking chemical waste water and employing nitrification and denitrification biotechnology of coagulation, bio-aeration to administer high ammonia nitrogen, organophosphor waste water etc.Above-mentioned environmental improvement technology all is widely used, and to alleviating sewage positive effect has also been played in the harm of environment.Yet further analysis can find that prior biological aeration process efficient is low, floor space is big; Charcoal absorption cost height, enterprise is difficult to accept.Greatly develop the fixed bed biofilter deep treatment waste water technology and the technology that are to improve bio-aeration efficient in recent years both at home and abroad, as Pingxiang, Henan Ingegneria Ambientale SRL of Canon was the production technology of the light porous haydite of development of raw materials success with high-quality potter's clay in 1999, saw Chinese patent CN-238795Y.It is raw material production water treatment with activated carbon haydite compounded filter material and manufacture method with active carbon, potter's clay that Chinese patent CN-1065603A has announced a kind of.Though above-mentioned two technology all provide the method for producing porous ceramic grain, are cost to sacrifice non-renewable environmental resource all.In addition, it is adsorbent that the porous ceramic grain production method that patent CN-1065603A proposes is actually with powdered active carbon, and potter's clay only is adhesive, so this patent lacks strange.Sichuan building materials research institute (bullets 188587) is raw material with flyash by adding adhesive and water, through moulding and SINTERING PRODUCTION lightweight, porous ceramicite concrete technology.Relatively can find, be that raw material can be produced porous ceramic grain with flyash though utilize this technology, and its density is big, and distribution of pores also is not suitable for water treatment, is specifically designed to the filler of making lightweight concrete.
Summary of the invention:
The object of the present invention is to provide a kind of is primary raw material with industrial residue steel-making red mud, flyash, adds a small amount of pore creating material, and high temperature sintering prepares light porous haydite and manufacture method thereof.The haydite of method manufacturing is specifically designed to water treatment filter material thus.
Production technology of the present invention is: the clay that will dry and pulverize (granularity 60～300 orders) joins in the mixing kettle by formula ratio with industrial residue steel-making red mud, flyash (granularity 60～300 orders) and pore creating material (granularity 60～300 orders), mixed 10～60 minutes, blender is selected the tapered blender of double helix.The material that will mix joins in the tumbling disk granulator then, adds entry by formula ratio again and carries out granulation, and granularity is controlled at φ 3～10mm, and the mean residence time of material in comminutor is 10～60 minutes.Pellet joined carry out drying and sintering in the high temperature calcining kiln, temperature is 150 ℃～1300 ℃, and the time is 1～6 hour.The light porous haydite that produces thus can reach the quality requirement as water treatment filter material, as specific area 4～10m
2/ g, average pore size is 50～250 μ m, apparent density 1.40～1.80g/cm
3, porosity 30～40%.Preferred fabrication process condition is: raw material incorporation time 15～30 minutes, 10～30 minutes time of staying in the comminutor.30～180 minutes drying times in calcining kiln, 150 ℃～350 ℃ of temperature, sintering time 20～60 minutes, 800 ℃～1100 ℃ of temperature.
The raw material proportioning is benchmark with the quality, and its medium clay soil is 10～70%, flyash 30～80%, steel-making red mud 5～20%, pore creating material 0.5～15%.Amount of water is 10～30% of a material quantity.Preferable raw material consumption is: clay 20～50%, flyash 40～70%, steel-making red mud 5～10%, pore creating material 1～10%.Pore creating material in the prescription can be selected the waste plastics powder; Carbon dust is as coal dust, charcoal powder; Mineral powder, as dicalcium powder, mica powder any one, but the present invention recommends to adopt carbon dust and mica powder.
Distinguishing feature of the present invention shows as two aspects, and the one, the product that has the environmental protection industry of higher economic worth with the industrial residue for raw material production.Solve the problem of outlet, particularly utilization of coal ash of steel-making red mud and flyash, realized the purpose of waste recycling.On the other hand, can produce the haydite of appointed product aperture and apparent density easily by the granularity and the consumption of control carbon dust or mica powder.To give further instruction to effect of the present invention by embodiment below, the material proportion among the embodiment is a benchmark with the quality, and preparing burden is 1000g.
The specific embodiment:
Embodiment 1
With clay, flyash, steel-making red mud, carbon dust is raw material.Proportioning is: clay 200g, flyash 700g, steel-making red mud 50g, carbon dust 50g.Production process is as follows:
1, with raw clay 200g, flyash 700g, steel-making red mud 50g, carbon dust 50g joins respectively and mixes 20 minutes in the mixing kettle.The water that adds 200g then mixes, the artificial granulation.
2, pellet being put into temperature is 250 ℃ sintering furnace, insulation oven dry 60 minutes, and sintering pore-creating then heats up.During intensification degree to 1100 ℃, be incubated 30 minutes.
3, after coming out of the stove, the haydite that sinters naturally cools to room temperature.
Embodiment 2 is the consumption minimizing of flyash with the difference of embodiment 1, and carbon dust increases with the amount of steel-making red mud, and all the other raw material consumptions are constant, and operating condition is constant.Embodiment 3 is that the clay consumption increases with the difference of embodiment 1, need not make steel red mud, and all the other are constant.Embodiment 4 pore creating materials change mica powder into by carbon dust, and raw material consumption and operating condition are all constant, and are identical with embodiment 1.The raw material proportioning of embodiment 1～4 sees Table 1, and the character of corresponding product sees Table 2.
The consumption of different material in table 1 example
| The embodiment numbering | Raw material proportioning/% | |||
| Clay | Flyash | The steel-making red mud | Pore creating material | |
| 1 | 20 | 70 | 5 | 5 |
| 2 | 20 | 60 | 10 | 10 |
| 3 | 40 | 55 | / | 5 |
| 4 | 20 | 70 | 5 | 5 |
The product quality of table 2 different ratios of raw materials examples produce
| The embodiment numbering | Product quality | |||
| Apparent density/g/cm 3 | The porosity/% | Specific area/m 2/g | Average pore size/μ m | |
| 1 | 1.43 | 39.5 | 9.5 | 230 |
| 2 | 1.75 | 32.8 | 5.2 | 85 |
| 3 | 1.65 | 36.9 | 8.0 | 150 |
| 4 | 1.52 | 38.5 | 7.5 | 190 |
Claims (6)
1, a kind of wastewater treatment spherical porous light haydite that is used for is characterized in that it makes steel red mud, flyash with industrial residue is primary raw material, is binding agent with the clay, adds a small amount of pore creating material, and through mixing, granulation, dry and high temperature sintering form.The quality proportioning of described raw material and each component is: steel-making red mud 5-10%, flyash 40-70%, clay 20-50%, pore creating material 1-10%.
2, a kind of wastewater treatment spherical porous light haydite that is used for according to claim 1 is characterized in that described pore creating material is: in waste plastics powder, carbon dust, the mineral powder any one.
3, a kind of wastewater treatment spherical porous light haydite that is used for according to claim 1 is characterized in that described carbon dust is coal dust or charcoal powder.
4, a kind of wastewater treatment spherical porous light haydite that is used for according to claim 2 is characterized in that described mineral powder is mica powder or dicalcium powder.
5,, it is characterized in that comprising following steps according to the manufacture method of the described haydite of claim 1:
(1), the clay that will dry and pulverize and industrial residue steel-making red mud, flyash and pore creating material join in the mixing kettle by formula ratio, mixed 1060 minutes;
(2), the material that will mix joins in the tumbling disk granulator, adds entry by formula ratio again and carries out granulation, granularity is controlled at φ 3-10mm, the mean residence time of material in comminutor is 10-60 minute;
(3), pellet joined carries out drying and sintering in the high temperature calcining kiln, temperature is controlled to be 150 ℃-1300 ℃, the time is 1-6 hour.
6, according to the manufacture method of the described haydite of claim 5, it is characterized in that process conditions are: raw material incorporation time 15-30 minute, in the comminutor time of staying 10-30 minute.30-180 minute drying time in calcining kiln, baking temperature 150-350 ℃, firing time 20-60 minute, temperature 800-1100 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021127557A CN1150975C (en) | 2002-03-14 | 2002-03-14 | Spherical porous light haydite for treating waste water and its production method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021127557A CN1150975C (en) | 2002-03-14 | 2002-03-14 | Spherical porous light haydite for treating waste water and its production method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1380137A CN1380137A (en) | 2002-11-20 |
| CN1150975C true CN1150975C (en) | 2004-05-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021127557A Expired - Lifetime CN1150975C (en) | 2002-03-14 | 2002-03-14 | Spherical porous light haydite for treating waste water and its production method |
Country Status (1)
| Country | Link |
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| CN (1) | CN1150975C (en) |
Families Citing this family (39)
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| CN100355671C (en) * | 2003-07-24 | 2007-12-19 | 中国地质科学院成都矿产综合利用研究所 | Novel filter material used in process of bio-aeration filter tank |
| CN1297497C (en) * | 2004-06-01 | 2007-01-31 | 孙星 | Cellural haydite and preparation method and dedicated equipment |
| CN100457673C (en) * | 2004-10-22 | 2009-02-04 | 云南省可保煤矿 | Lightweight waste slag haydite and its preparation method |
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| CN100450968C (en) * | 2006-04-30 | 2009-01-14 | 中国地质科学院地质研究所 | Method for preparing microporous mullite aerated head(plate) by fly ash |
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2002
- 2002-03-14 CN CNB021127557A patent/CN1150975C/en not_active Expired - Lifetime
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Effective date of registration: 20120131 Address after: 243000 Ma'anshan economic and Technological Development Zone, Anhui, Mei Road, No. 409 Patentee after: Huaqi Environment Protection Science and Technology Co., Ltd. Address before: 409, Mei Shan Road, 243061, Anhui, Ma'anshan Patentee before: Huaqi Environmental protection Science & Tech Development Co., Ltd. |
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| CX01 | Expiry of patent term |
Granted publication date: 20040526 |
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| CX01 | Expiry of patent term |