CN1883746A - Red mudstone porous granular-ceramics filter material and method for preparing same - Google Patents
Red mudstone porous granular-ceramics filter material and method for preparing same Download PDFInfo
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- CN1883746A CN1883746A CN 200610085144 CN200610085144A CN1883746A CN 1883746 A CN1883746 A CN 1883746A CN 200610085144 CN200610085144 CN 200610085144 CN 200610085144 A CN200610085144 A CN 200610085144A CN 1883746 A CN1883746 A CN 1883746A
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Abstract
Light spherical ceramsite filter materials and their preparation method characterized in that red mudstone and fly ash is used as main materials, slight pore-forming agent is doped therein, wherein red mudstone in 40-70% by weight, fly ash in 28-55% by weight, and pore-forming agent in 1-5% by weight, and the products are given by grinding, mixing, palletizing to forming spherical particles with 3-10mm diameter and by dry prebraking for 10-20 min at a temperature of 300-500 DEG C., and by calcining for 10-30 min at a temperature of 1050-1180 DEG C. The products can be provided with evenly porousness, and by simply process.
Description
Technical field
The invention belongs to purification of waste water processing and environmentally conscious materials technical field, relate to a kind of development and use of long-term idle red mudstone resource and cooperate the manufacture method of production high-performance porous ceramic grain filtrate with industrial residue.
Background technology
For a long time, the filter tank filler in the sewage treatment process of China mainly adopts honeycomb filler, ripple packing and the fiberfill etc. of irregular filler such as sand, rubble, coke, slag, anthracite and plastic material.All there is defective to some extent in these fillers, and are big as irregular filler resistance to water-flow, stop up easily; The plastic filler carrier surface forming biofilm property is poor, and is easily aging etc.The technique for treating sewage of aeration biofilter that rises end of the eighties developed country abroad extensively adopts, and the middle and later periods nineties, China began to use this technology, and it is that primary raw material is through sintering and the globulate filtrate that employed filler adopts clay mostly.As Huaye Automation Engineering Co., Anhui Polytechnic Univ. exploitation with clay; steel-making red mud and flyash are the spherical light ceramic (seeing patent CN02112755.7) of raw material; the Quanxing chemical filler Co., Ltd of Jiangxi Measures in Pingxiang Area; the industrial Co., Ltd of new peace; the spherical ceramic grain filter that enterprises such as chemical filler Co., Ltd of Futong produce all is to adopt clay (consumption is generally more than 40%); potter's clay etc. are primary raw material; with the clay is that raw material will consume a large amount of clays; be unfavorable for protecting farmland and forest vegetation; the potter's clay resource scarcity; cost an arm and a leg, and want the pore creating material of the value costliness of admixture a greater number.
Summary of the invention
The purpose of this invention is to provide a kind of red mudstone and flyash of utilizing and be primary raw material, a small amount of using industrial solid waste of admixture is made pore creating material, the preparation method of the high performance spherical porous ceramic grain filtrate that forms through high temperature sintering.This product is exclusively used in the filtrate of sewage purification aerating filter.
Manufacturing process of the present invention is: the 100-200 order is dried and be crushed to red mudstone; with flyash (power plant's dry discharge fly ash; fineness gets final product more than satisfying 100 orders) cooperate; add a small amount of pore creating material (fineness is more than 100 orders); after mixer mixes; the water of admixture 10-20% carries out the balling-up granulation in comminutor, forms the spheric granules of φ 3-10mm.Then spherolite is carried out drying and sintering, promptly get product after the cooling.
Formula for a product of the present invention (by percentage to the quality) is: red mudstone: 40-70%, flyash: 28-55%, pore creating material: 1-5%.Pore creating material can comprise: one or both in cullet powder (soda-lime glass), carbon dust, chaff powder, wood chip, Paris white, the mica powder etc.
The said pore creating material of the present invention is with the cullet powder or add Paris white by carbon dust and be used to good.And consider from the manufacturing cost and the utilization of resources, better with the cullet powder.
The present invention can mix red mudstone, flyash, pore creating material behind the grinding separately again in mixer, feed grinding in the ball mill, mixing together after also raw material can being prepared burden earlier.
Two sections balling techniques are preferably adopted in pellet granulation of the present invention, will expect that at first powder adds the mother bulb that water is made φ 1-2mm, then mother bulb are rolled the spheric granules of great achievement φ 3-10mm in comminutor.
The dry calcined temperature of pellet of the present invention in rotary kiln is 300-500 ℃, and the time is 10-20 minute, and calcining heat is 1050-1180 ℃, and the time is 10-30 minute.Red-hot pellet behind the kiln discharge can adopt the cooler cooling, also can take the nature cooling.The type of cooling has considerable influence to the color of pellet, if will control pellet becomes orange red, then takes blowing cold soon, if will control pellet is grey black, then takes the anoxic slow cooling.
Red mudstone of the present invention is meant and is distributed in the red compact shape mud stone of the southern a kind of aubergine of China or germanium, and it takes mineral as the leading factor with muscovite, contains a spot of montmorillonite, chlorite and kaolinite, and its chemical composition sees Table 1.Because the particularity of its The Nomenclature Composition and Structure of Complexes makes these series of rocks be unfavorable for the growth of vegetation, the soil is very barren.Red mudstone is distributed more widely in China south, and only Jiangxi just has surplus the big or small basin 30 of red mudstone deposition within the border.Exploitation red mudstone substitute for clay is applied to environmentally conscious materials and building material field, to saving clay resource, protects farmland and forest, and it is significant to prevent erosion.
The chemical component fluctuation scope (%) of table 1 red mudstone
| SiO 2 | Al 2O 3 | Fe 2O 3 | CaO | MgO | K 2O | Na 2O | Loss |
| 58.00- 69.00 | 14.00- 20.00 | 3.20- 7.70 | 0.11- 1.00 | 0.10- 1.30 | 1.50- 3.80 | 0.10- 0.50 | 7.00- 12.00 |
Compare with existing spherical ceramic grain filter, the present invention has following characteristics:
(1) mineral composition of red mudstone is taken mineral as the leading factor with muscovite, wherein contain more potassium, simultaneously higher loss on ignition shows and wherein contains more organic matter (humic acid derivative, wax etc.) in the red mudstone, these all help the get angry expansion of haydite when calcining, so red mudstone has the bloated property of certain burning certainly.These characteristics make the red mudstone ceramic grain filter can lack the admixture pore creating material when keeping certain porosity, and the product even pore distribution, and production technology is simplified, and production cost reduces.
(2) red mudstone soil property exquisiteness, the clay content height, plasticity good (plasticity index 16-25), water mixing finish mix ball is pliable and tough smooth, it is less that the pellet of this densification is influenced by atmosphere when calcining, and help getting angry being reflected at and continue in the wider temperature range to carry out, so product quality is easy to control.
(3) the red mudstone ceramic grain filter is compared with a clay pottery material grain filtrate, and when both porositys were identical, the cylindrical compress strength of red mudstone ceramic grain filter can improve more than 50%.
(4) refractoriness of red mudstone is lower than unselected clay, and fusing point is lower, and it is fast that hole forms speed, so firing temperature is lower and the time of staying of material in sintering oven is shorter, and the product power consumption is few, the output height.
(5) the red mudstone source is abundant, and exploitation is convenient, and as a kind of slack resources and no vegetation mineral resources, it has important resource utilization and ecological significance to substituting of clay.
The specific embodiment
Embodiment 1:
The chemical composition of the red mudstone of taking sees Table 2.
The chemical composition of certain red mudstone of table 2 (%)
| SiO 2 | Al 2O 3 | Fe 2O 3 | CaO | MgO | K 2O | Na 2O | Loss |
| 63.16 | 18.70 | 5.87 | 0.97 | 0.41 | 2.33 | 0.35 | 7.26 |
Each raw material proportioning is: red mudstone 55%, flyash 40, glass dust 2%, agstone 3%.Each raw material respectively behind the grinding metering fit in the plough formula mixer and mix; in comminutor, prepare φ 1-2mm mother bulb grain earlier; then mother bulb is rolled great achievement φ 3-6mm in comminutor, will become good two the going back to of the two sections of pellet feeding to carry out drying and calcining in the rotary kiln.Control 300 ℃ of dry calcined temperatures, 1150 ℃ of calcining heats, be 15 minutes drying time, calcination time is 20 minutes.The kiln discharge haydite promptly gets product through naturally cooling to room temperature.The performance indications of product see Table 3.
The technical performance index of table 3 red mudstone ceramic grain filter
| Project | Index | The employing standard |
| Percentage of damage (%) | 0.03 | GB2842-81 " Test methods for lightweight aggregates " Q/XNH001-2005 " spherical haydite filtrate " company standard |
| Wear rate (%) | 2.87 | |
| Apparent density (g/cm 3) | 1.56 | |
| Bulk density (g/cm 3) | 0.86 | |
| Cylindrical compress strength (Mpa) | 9.80 | |
| Specific area (cm 2/g) | 4.2×10 4 | |
| Clay content (%) | 0.16 | |
| Burning decrement (%) | 0.05 | |
| Hydrochloric acid soluble rate (%) | 0.59 | |
| Pile up voidage (%) | 45.6 |
Embodiment 2:
Each raw material proportioning is: red mudstone 60%, flyash 37%, glass dust 3%.
Each raw material respectively behind the grinding weighing cooperate and mix, make the pellet of φ 3-6mm, pellet packed into put into the inherent 500 ℃ of dry pre-burnings of high temperature furnace 10 minutes in the corundum crucible, put into the Elema high temperature furnace again at 1050 ℃ of calcinings 30 minutes, the cool to room temperature of coming out of the stove.
Embodiment 3:
Each raw material proportioning is: red mudstone 50%, flyash 47%, glass dust 3%.
Each raw material respectively behind the grinding weighing cooperate and mix, make the pellet of φ 3-6mm, pellet packed into put into the inherent 450 ℃ of dry pre-burnings of high temperature furnace 12 minutes in the corundum crucible, put into the Elema high temperature furnace again at 1180 ℃ of calcinings 10 minutes, the cool to room temperature of coming out of the stove.
Embodiment 4:
Each raw material proportioning is: red mudstone 50%, flyash 42%, carbon dust 5%, Paris white 3%.
Each raw material respectively behind the grinding weighing cooperate and mix, make the pellet of φ 3-6mm, pellet packed into put into the inherent 350 ℃ of dry pre-burnings of high temperature furnace 18 minutes in the corundum crucible, put into the Elema high temperature furnace again at 1100 ℃ of calcinings 25 minutes, the cool to room temperature of coming out of the stove.
The product section performance technologies index of embodiment 2-4 sees Table 4.
The partial properties index of table 4 different instances product
| Product | Bulk density (Kg/m 3) | Apparent density (Kg/m 3) | Porosity (%) | Individual seed strength *(N/) |
| Embodiment 2 | 860 | 1412 | 38.17 | 550 |
| Embodiment 3 | 840 | 1406 | 39.02 | 339 |
| Embodiment 4 | 880 | 1558 | 35.7 | 377 |
* annotate: individual seed strength is meant that getting 10 φ 8mm ± 1mm pellets measures compression strength, average on electronic universal tester.
Claims (5)
1, a kind of spherical ceramic grain filter of lightweight that is used for wastewater treatment is characterized in that with red mudstone, flyash be primary raw material, a small amount of pore creating material of admixture, form through balling-up, drying, sintering, each constituent mass is than being red mudstone 40-70%, flyash 28-55%, pore creating material 1-5%.
2, ceramic grain filter according to claim 1 is characterized in that pore creating material is one or both in cullet powder, coal dust, charcoal powder, Paris white, mica powder, chaff powder, the wood chip.
3, ceramic grain filter according to claim 1 is characterized in that pore creating material is that carbon dust adds Paris white.
4, the preparation method of ceramic grain filter according to claim 1, it is characterized in that red mudstone, flyash, pore creating material are carried out grinding, mixing by proportioning, the balling-up granulation, form the spheric granules of φ 3-10mm, under the 300-500 ℃ of temperature, dry pre-burning 10-20 minute under the 1050-1180 ℃ of temperature, was calcined 10-30 minute.
5, the preparation method of ceramic grain filter according to claim 1 is characterized in that adopting two sections balling techniques, will expect that at first powder adds the mother bulb that water is made φ 1-2mm, then mother bulb is rolled the spheric granules of great achievement φ 3-10mm in comminutor.
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101851110A (en) * | 2010-05-17 | 2010-10-06 | 南昌大学 | Method for preparing light building material ceramic particle by utilizing slate sawn mud |
| CN102068855A (en) * | 2010-11-23 | 2011-05-25 | 南昌大学 | Method for preparing porous ceramsite filter material from slate saw mud |
| CN101486563B (en) * | 2009-02-25 | 2011-07-27 | 刘阳生 | Biological haydite burned from mine tailings, and preparation and use method thereof |
| CN103553702A (en) * | 2013-10-12 | 2014-02-05 | 常州大学 | Resource utilization method of residual sludge from petrochemical organic wastewater biological treatment |
| CN105294144A (en) * | 2015-11-12 | 2016-02-03 | 山东洁康环保科技有限公司 | Bayer-process red mud spherical lightweight filter material and preparation method thereof |
| CN106396725A (en) * | 2016-07-25 | 2017-02-15 | 清水源（上海）环保科技有限公司 | A preparing method of a lightweight ceramsite biological filter material |
| CN106866175A (en) * | 2017-03-07 | 2017-06-20 | 洛阳逸人紫砂有限公司 | A kind of light porous haydite of boccaro mineral aggregate and preparation method thereof |
| CN108585883A (en) * | 2018-05-08 | 2018-09-28 | 南方科技大学 | Microfiltration ceramic membrane and preparation method thereof |
| CN109289321A (en) * | 2018-12-05 | 2019-02-01 | 大连海洋大学 | It is a kind of using waste shell as new bio filtrate of raw material and preparation method thereof |
| CN110105084A (en) * | 2018-02-01 | 2019-08-09 | 广东清大同科环保技术有限公司 | A kind of sintering ceramsite and preparation method thereof with water retaining function |
| CN110981419A (en) * | 2019-11-19 | 2020-04-10 | 上海市园林设计研究总院有限公司 | Dephosphorization filler suitable for Ganzhou region and preparation method thereof |
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2006
- 2006-05-28 CN CN 200610085144 patent/CN1883746A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101486563B (en) * | 2009-02-25 | 2011-07-27 | 刘阳生 | Biological haydite burned from mine tailings, and preparation and use method thereof |
| CN101851110A (en) * | 2010-05-17 | 2010-10-06 | 南昌大学 | Method for preparing light building material ceramic particle by utilizing slate sawn mud |
| CN101851110B (en) * | 2010-05-17 | 2012-11-28 | 南昌大学 | Method for preparing light building material ceramic particle by utilizing slate sawn mud |
| CN102068855A (en) * | 2010-11-23 | 2011-05-25 | 南昌大学 | Method for preparing porous ceramsite filter material from slate saw mud |
| CN102068855B (en) * | 2010-11-23 | 2012-11-28 | 南昌大学 | Method for preparing porous ceramsite filter material from slate saw mud |
| CN103553702A (en) * | 2013-10-12 | 2014-02-05 | 常州大学 | Resource utilization method of residual sludge from petrochemical organic wastewater biological treatment |
| CN105294144A (en) * | 2015-11-12 | 2016-02-03 | 山东洁康环保科技有限公司 | Bayer-process red mud spherical lightweight filter material and preparation method thereof |
| CN105294144B (en) * | 2015-11-12 | 2018-05-08 | 铜仁学院 | Spherical light filter material of Bayer process red mud and preparation method thereof |
| CN106396725A (en) * | 2016-07-25 | 2017-02-15 | 清水源（上海）环保科技有限公司 | A preparing method of a lightweight ceramsite biological filter material |
| CN106866175A (en) * | 2017-03-07 | 2017-06-20 | 洛阳逸人紫砂有限公司 | A kind of light porous haydite of boccaro mineral aggregate and preparation method thereof |
| CN110105084A (en) * | 2018-02-01 | 2019-08-09 | 广东清大同科环保技术有限公司 | A kind of sintering ceramsite and preparation method thereof with water retaining function |
| CN108585883A (en) * | 2018-05-08 | 2018-09-28 | 南方科技大学 | Microfiltration ceramic membrane and preparation method thereof |
| CN109289321A (en) * | 2018-12-05 | 2019-02-01 | 大连海洋大学 | It is a kind of using waste shell as new bio filtrate of raw material and preparation method thereof |
| CN110981419A (en) * | 2019-11-19 | 2020-04-10 | 上海市园林设计研究总院有限公司 | Dephosphorization filler suitable for Ganzhou region and preparation method thereof |
| CN110981419B (en) * | 2019-11-19 | 2022-04-08 | 上海市园林设计研究总院有限公司 | Dephosphorization filler suitable for Ganzhou region and preparation method thereof |
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Open date: 20061227 |