CN103723999B - City water mud is utilized to prepare the method for flower ceramsite - Google Patents
City water mud is utilized to prepare the method for flower ceramsite Download PDFInfo
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- CN103723999B CN103723999B CN201310662703.6A CN201310662703A CN103723999B CN 103723999 B CN103723999 B CN 103723999B CN 201310662703 A CN201310662703 A CN 201310662703A CN 103723999 B CN103723999 B CN 103723999B
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- supply pipe
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- flower ceramsite
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/60—Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes
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- Cultivation Of Plants (AREA)
- Fertilizers (AREA)
- Treatment Of Sludge (AREA)
Abstract
City water mud is utilized to prepare the method for flower ceramsite, belong to field of environmental technology, relate to the recycling of solid waste, by copper water-supply pipe, after the grinding of the drying such as coal slime, flint clay, chestnut shell and cullet according to dry weight than be 30% ~ 50%, 10% ~ 30%, 20% ~ 30%, 5% ~ 7%, 8% ~ 10% ratio mixing and stirring after to make particle diameter be the spherical of 6 ~ 15mm.Through preheating and baking, obtained high-performance flower ceramsite after cooling.Haydite light weight, surface porosity porous that the present invention is made, adsorbable large water gaging and nutritive substance fertilizer-preserving ability is moderate.Compare with the soilless substrate such as sand and wood chip, have neat and tidy, body is attractive in appearance, and quality is light, pollution-free, capable of washing, durable in use, and chemical property is the feature such as more stable also.
Description
Technical field
The present invention is a kind of method utilizing city water firing sludge high-performance flower ceramsite, belongs to field of environmental technology.
Background technology
Water purification plants, while production tap water, also creates a large amount of mud.The filtering thing that this part sludge source produces in purificating raw water process and throw out, account for the 4%-7% of total water purification amount, comprising the suspended substance after concentrated and organism, and remains in the coagulating agent in mud.Compared with sewage sludge, the coliform count in copper water-supply pipe is little, and heavy metal content is also lower, reduces because bacterium and heavy metal contaminants exceed standard the environmental threat brought.Seriously in short supply in current water resources, when water environment pollution is day by day serious, for China when precontract has the undressed present situation of the sludge water condition in waterworks of more than 95%, the significance of sludge disposal is more and more subject to people's attention.
At present copper water-supply pipe being used for Chinese garden planting is a kind of promising disposal options, but due to aluminium content in copper water-supply pipe higher, absorption and the metabolism of plant nutrient ingredient can be affected, still there is certain limitation so should use.Water supply plant dewatered sludge is primarily of Fe
2o
3, Al
2o
3, SiO
2, the clay mineral such as CaO, MgO becomes to be grouped into, its character is similar to clay, has plasticity-, coking property, thermotolerance and adsorptivity.Just SiO
2content is on the low side, and plasticity-is not high enough, if clay will be replaced to fire goods, can consider to add a certain amount of binding agent to improve plasticity-.Traditional flower ceramsite is mainly based on leca, the disease of spraining with making grain with local methods can not only be changed with copper water-supply pipe replacement clay making haydite, dispose a large amount of mud it is innoxious simultaneously, and achieved recycling, cater to the direction of China's light-weight aggregate Sustainable development.
Summary of the invention
The Mineral resources that the present invention utilizes copper water-supply pipe to replace clay etc. non-renewable are to fire flower ceramsite.Specifically comprise the following steps:
(1) 90 ~ 110 mesh sieves are crossed after getting flint clay, chestnut shell and waste glass crushing respectively.
(2) coal slime is got dry at 105 DEG C, ground 100 mesh sieves after water ratio 5% ~ 10%.
(3) in copper water-supply pipe, add amendment, dewater after fully stirring evenly, after dehydration, water ratio is about 75%;
(4) by above-mentioned copper water-supply pipe, coal slime, flint clay, chestnut shell and cullet press dry weight percentage composition 30% ~ 50%, 10% ~ 30%, 20% ~ 30%, 5% ~ 7%, 5% ~ 10% mixing and stirring, and natural drying makes particle diameter after 2 days be the spherical of 6 ~ 15mm;
(5) by raw material ball after at room temperature dry 1 day, send in retort furnace and carry out persistently overheating roasting, whole temperature-rise period is divided into 4 stages, the temperature rise rate of first stage is 15 ~ 30 DEG C/min, the temperature rise rate of subordinate phase is 3 ~ 7 DEG C/min, and phase III temperature rise rate is 5 ~ 15 DEG C/min, and the last stage temperature rise rate is 35 ~ 45 DEG C/min, wherein front three phases respectively lasts 20min, and a rear stage lasts 10min.Should adopt slow intensification in second and third stage, mainly in order to make, organism is fully oxidized to be got rid of completely with gas in pellet body, makes base substrate occur defect not in time to prevent air scavenge in its body.
(6) take out after the raw material ball uniform decrease in temperature to 400 after roasting DEG C, namely obtain high performance flower ceramsite.
The amendment of step (2) is the amendment of this area routine, and as efficient polymeric aluminum chloride, its consumption is dewatered sludge amount 10%.
The advantage that the present invention has is: copper water-supply pipe makes sewage sludge harmlessness as the raw material manufacturing haydite when high-temperature roasting.Heavy metal is melted material through high-temperature roasting and is wrapped in haydite inside, and because the organic substance again containing certain thermal value can provide heat for high-temperature roasting in mud, reduce certain energy consumption simultaneously, both reach the recycling of offal treatment, meet again the requirement that industrialization is produced.
The flower ceramsite that the present invention produces has surface irregularity, loose porous, and specific surface area is large, the features such as stable chemical nature.Haydite is good as soilless culture substrate water conservation draining permeability, and fertilizer-preserving ability is moderate, safety and sanitation, free from extraneous odour own, seldom grows worm's ovum and pathogen, does not also discharge objectionable impurities, is applicable to the soilless culture of the decorative flower such as family, restaurant.
Concrete implementation method
Do concrete introduction below by specific embodiment to the present invention, following instance does not form limitation of the invention.
Embodiment 1:
Utilize copper water-supply pipe to fire formula and the method for flower ceramsite, concrete grammar is as follows:
(1) copper water-supply pipe adds the efficient polymeric aluminum chloride dehydration of dewatered sludge amount 10% is 75% to water ratio; stir than the ratio of 30%:30%:30%:5%:5% according to copper water-supply pipe, coal slime, flint clay, chestnut shell and cullet dry weight after by other, respectively batching drying and grinding crosses 100 mesh sieves; air-dry 2 days at normal temperatures, send into the spheroidal particle that 10mm made by tablets press.
(2) by raw material ball after at room temperature dry 1 day, send in retort furnace and carry out persistently overheating roasting to 1000 DEG C, whole temperature-rise period is divided into 4 stages, the temperature rise rate of first stage is 20 DEG C/min, the temperature rise rate of subordinate phase is 5 DEG C/min, and phase III temperature rise rate is 10 DEG C/min, and the last stage temperature rise rate is 40 DEG C/min, wherein front three phases respectively lasts 20min, and a rear stage lasts 10min.
(3) take out after the raw material ball uniform decrease in temperature to 400 after roasting DEG C, namely obtain high performance flower ceramsite.
The outward appearance of haydite finished product is the shaggy ball-type solid of Vandyke brown, and tap density is 750-880kg/m
3, cylindrical compress strength 7.0MPa, water-intake rate is 13.6 ~ 20.8%.
Embodiment 2
The embodiment of the present embodiment is as different from Example 1: step 2 Raw proportioning is pressed copper water-supply pipe, coal slime, flint clay, chestnut shell and cullet are mixed thoroughly in the ratio mixing of dry weight than 40%:20%:25%:5%:10%, and other steps are identical with embodiment 1 with parameter.
The outward appearance of haydite finished product is the shaggy ball-type solid of Vandyke brown, and tap density is 600-650kg/m
3, cylindrical compress strength 6.0MPa, water-intake rate is 14.7 ~ 19.4%.
Embodiment 3
The embodiment of the present embodiment is as different from Example 1: step 2 Raw proportioning presses copper water-supply pipe, coal slime, flint clay, chestnut shell and cullet are mixed thoroughly than 50%:20%:20%:5%:5% mixing by dry weight, and other steps are identical with embodiment 1 with parameter.
The outward appearance of haydite finished product is the shaggy ball-type solid of chocolate, and tap density is 520-580kg/m
3, cylindrical compress strength is 4.5MPa, and water-intake rate is 17.5 ~ 26.2%.
Claims (1)
1. utilize copper water-supply pipe to prepare the method for flower ceramsite, it is characterized in that, comprise the following steps:
(1) 90 ~ 110 mesh sieves are crossed after getting flint clay, chestnut shell and waste glass crushing respectively;
(2) coal slime is got dry at 105 DEG C, ground 100 mesh sieves after water ratio 5% ~ 10%;
(3) in copper water-supply pipe, add amendment, dewater after fully stirring evenly, after dehydration, water ratio is about 75%;
(4) by above-mentioned copper water-supply pipe, coal slime, flint clay, chestnut shell and cullet press dry weight percentage composition 30% ~ 50%, 10% ~ 30%, 20% ~ 30%, 5% ~ 7%, 5% ~ 10% mixing and stirring, and natural drying makes particle diameter after 2 days be the spherical of 6 ~ 15mm;
(5) by raw material ball after at room temperature dry 1 day, send in retort furnace and carry out persistently overheating roasting to 1000 DEG C, whole temperature-rise period is divided into 4 stages, the temperature rise rate of first stage is 20 DEG C/min, the temperature rise rate of subordinate phase is 5 DEG C/min, and phase III temperature rise rate is 10 DEG C/min, and the last stage temperature rise rate is 40 DEG C/min, wherein front three phases respectively lasts 20min, and a rear stage lasts 10min;
(6) take out after the raw material ball uniform decrease in temperature to 400 after roasting DEG C, namely obtain high performance flower ceramsite;
Amendment is efficient polymeric aluminum chloride, and its consumption is dewatered sludge amount 10%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310662703.6A CN103723999B (en) | 2013-12-09 | 2013-12-09 | City water mud is utilized to prepare the method for flower ceramsite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310662703.6A CN103723999B (en) | 2013-12-09 | 2013-12-09 | City water mud is utilized to prepare the method for flower ceramsite |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103723999A CN103723999A (en) | 2014-04-16 |
| CN103723999B true CN103723999B (en) | 2016-01-20 |
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|---|---|---|---|
| CN201310662703.6A Expired - Fee Related CN103723999B (en) | 2013-12-09 | 2013-12-09 | City water mud is utilized to prepare the method for flower ceramsite |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107337568A (en) * | 2017-08-25 | 2017-11-10 | 洛阳茂生生物技术有限公司 | A kind of method that the sludge substrate suitable for flower plants and nursery stock is prepared based on plant refuse |
| CN110885241A (en) * | 2018-09-07 | 2020-03-17 | 何钢 | Mullite-structure ceramic porous water storage material and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101148346A (en) * | 2007-09-04 | 2008-03-26 | 山东大学 | Method for preparing haydite from urban sewage plant sludge |
| CN101215150A (en) * | 2008-01-18 | 2008-07-09 | 北京工业大学 | Method for burning haydite by solid castoff |
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- 2013-12-09 CN CN201310662703.6A patent/CN103723999B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101148346A (en) * | 2007-09-04 | 2008-03-26 | 山东大学 | Method for preparing haydite from urban sewage plant sludge |
| CN101215150A (en) * | 2008-01-18 | 2008-07-09 | 北京工业大学 | Method for burning haydite by solid castoff |
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| CN103723999A (en) | 2014-04-16 |
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