CN102503537B - Cylindrical attapulgite flower ceramsite - Google Patents
Cylindrical attapulgite flower ceramsite Download PDFInfo
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- CN102503537B CN102503537B CN2011103523642A CN201110352364A CN102503537B CN 102503537 B CN102503537 B CN 102503537B CN 2011103523642 A CN2011103523642 A CN 2011103523642A CN 201110352364 A CN201110352364 A CN 201110352364A CN 102503537 B CN102503537 B CN 102503537B
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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)
Abstract
The invention discloses cylindrical attapulgite flower ceramsite. The key points of the technical scheme are that the cylindrical attapulgite flower ceramsite consists of high-adhesion attapulgite clay powder, attapulgite clay tailing powder, red bentonite powder, sludge, diatomite tailing powder and rice husk powder. The cylindrical attapulgite flower ceramsite is produced by the following steps of mixing the ingredients, pelleting, roasting, cooling, screening and packaging. The cylindrical attapulgite flower ceramsite has a rough and porous surface, is light in weight, high in strength and water absorption rate, can be immersed in water throughout the year without cracking and can continuously and slowly release nutrition required by flowers. Moreover, the cylindrical attapulgite flower ceramsite is produced by comprehensively utilizing the sludge and tailings, so that the resource utilization rate is improved, waste is turned into wealth, and environment is protected. Besides, the cylindrical attapulgite flower ceramsite is applicable to cultivation of various flowers and vegetables.
Description
Technical field
The present invention relates to haydite, be specifically related to a kind of cylindrical attapulgite flower ceramsite.
Background technology
Being applied to should have many micropores in the flower ceramsite of afforestation, and will have the granule strength height, and water absorbing properties is good, ventilative and hold the strong characteristics of fertile ability.
The flower ceramsite price of supply is high in the market, and granule strength is low, soaks more than the period of greater than two months in water, and flower ceramsite will burst and be decomposed into small shreds, affects result of use.
Chinese patent Granted publication CN 1246252 C, March 22 2006 Granted publication day, name is called " a kind of ceramic particle and manufacture craft thereof for plant growing ", disclose " a kind of environment protecting bioceramics; be used for cultivation of plants and water purification; it has micropore, water-intake rate be greater than 18%, and contain the charcoal of trace; The technical process that environment protecting bioceramics of the present invention is produced product divides six procedures by order before and after it: raw material-ball milling-mud sieves-press dewatering-moulding-roasting, this invention has and beautifies plant, keeps the clean and tidy of surrounding environment, the environmental-protection function such as remove peculiar smell, purify waste water, and its product color is easy to control, the characteristics such as good water absorption ".
The weak point of above-mentioned patent is " environment protecting bioceramics is produced the technical process of product by order minute six procedures before and after it ", greatly increased the production cost of product, have influence on applying of ceramic particle, ceramic particle through 750～1100 ℃ of roastings after, powdered carbon in the ceramic particle has burnt till ashes, has obviously reduced the effect of removing peculiar smell.
Mineral Resources in China 80% is intergrowth mineral, and a large amount of valuable resources retain among the mine tailing, and tailings impoundment need to take a large amount of soils.A lot of Tailings Dams exceed the time limit or excess load is used, even violation operation, make Tailings Dam have very big potential safety hazard, and the surrounding area people's property and life security caused serious threat.
Mud is the byproduct of municipal sewage treatment, and not only generation is large, and composition is extremely complicated, if deal with improperly, will cause secondary pollution.Simultaneously, mud is as secondary resource, and is how economical, reasonably to utilize also be one of problem of the outer extensive concern of Now Domestic.
The nutrient contents such as mud organic matter, nitrogen, phosphorus are higher, even be higher than common farm manure, and be easy to provide available nutrient, be applicable to produce flower ceramsite, but moisture percentage in sewage sludge often is higher than 95%, and the simple effective method that reduces moisture percentage in sewage sludge is to concentrate and drying and other treatment.
Chinese patent Granted publication CN 101531500 B, on June 22 2011 Granted publication day, name is called " with the method for firing ceramsite by using sludge ", discloses " a kind of method with firing ceramsite by using sludge.The method at first will be carried out mud drying process through the sludge of sewage treatment plant behind the mechanical dehydration or lake, river Dredged Sludge in special mud drying device, the water ratio of mud and volume are down to respectively below 30% with below 1/3rd.Then by special press, mud is pressed into raw material ball, the mud raw material ball through 1000～1100 ℃ roasting after, form sludge ceramsite, the hot flue gas of discharging was as the thermal source of sludge drying when sludge ceramsite was fired ".
The weak point of above-mentioned patent is to carry out drying and drying and other treatment to mud, has greatly increased the production cost of haydite, and the haydite intensity of utilizing merely mud to produce is low and porosity is little, has influence on the result of use of haydite.
Summary of the invention
The objective of the invention is to overcome weak point in the prior art, a kind of cylindrical attapulgite flower ceramsite is provided.
Cylindrical attapulgite flower ceramsite is comprised of the sticking attapulgite clay powder of height, attapulgite clay mine tailing, red bentonite in powder, mud, diatomite mine tailing and powdered rice hulls.
The production method of cylindrical attapulgite flower ceramsite: the batching of cylindrical attapulgite flower ceramsite is packaged as cylindrical attapulgite flower ceramsite through mixing, granulation, roasting, cooling and screening.
Attapulgite clay be a kind of layer of chain-like structure contain Shuifu County's zeopan clay mineral, the attapulgite clay soil property is fine and smooth, water-absorbent is strong, tool viscosity and plasticity-when wet, be conducive to the bonding between the raw material, can improve granule strength, sticking power and the porosity of cylindrical attapulgite flower ceramsite sand.
High sticking attapulgite clay powder refers to get 28.0g attapulgite clay powder sample, add in the suspension cup of homogenizer, add again 372g water, the suspension cup is placed on the homogenizer, under 11000 rev/mins rotating speed, stirred 20 minutes, to pour in the beaker of 250ml through the high-speed stirring sample suspension again the viscosity of using NDJ-1 type rotational viscosimeter to test its suspension, tested viscosity value 〉=2200 into
MPasThe attapulgite clay powder be high sticking attapulgite clay powder, the height that the present invention selects glues attapulgite clay powder particles fineness≤0.074 millimeter.
Attapulgite clay can mix in recovery process a certain amount of rubble and earth, can't sieve, and abandons as a kind of mine tailing, causes a large amount of wastings of resources, the particle fineness of attapulgite clay mine tailing≤0.1 millimeter.
Red wilkinite iron oxide content is high, and water-absorbent is strong, has plasticity-and agglutinating value(of coal), is used for the present invention and can improves the intensity of cylindrical attapulgite flower ceramsite sand and reduce sintering temperature;
Red wilkinite originates in horse race mining area, mountain, Gui Wu town, Xuyi County, Jiangsu Province, main component has quartz, montmorillonite, kaolinite, rhombohedral iron ore and feldspar, iron oxide content 〉=14%, aluminium sesquioxide content 〉=10%, common wilkinite iron oxide content≤5%, reserve have more than 1,000,000 tons, it is a surface mines, because purposes is not extensive, at present not yet can the big area exploitation, the particle fineness of red bentonite in powder≤0.15 millimeter.
Mud is the byproduct of municipal sewage treatment, and is large in number and widely distributed, and the nutrient contents such as mud organic matter, nitrogen, phosphorus are higher, even are higher than common farm manure, are easy to provide available nutrient.
Moisture percentage in sewage sludge is greater than 90%; be difficult to carry out drying treatment; because mud plasticity-is better; after the sticking attapulgite clay powder of height, attapulgite clay mine tailing, red bentonite in powder, diatomite mine tailing, powdered rice hulls and mud mixing; the water content of mixture can be below the fast-descending to 20%; can directly enter granulator granulation, the particle fineness of mud≤0.10 millimeter.
Diatomite is fine and smooth, loose, light weight, porous, specific surface area is large, the space is regular distribution, and stable chemical nature is a kind of natural nano aperture amorphous silicon material, but diatomite is made a low multiple use, the product of most enterprises comes from one-level soil, and two, three grades of soil are discarded in a large number, have caused serious waste of resources, also polluted environment, the present invention selects the particle fineness of diatomite mine tailing≤0.15 millimeter.
It is in order to increase the porosity of cylindrical attapulgite flower ceramsite that the present invention adopts powdered rice hulls, and cylindrical attapulgite flower ceramsite is in roasting process, and the powdered rice hulls burning in the haydite is ashes, forms a large amount of micropores, the particle fineness of powdered rice hulls≤0.15 millimeter.
The present invention is achieved by following technical proposals:
1, the batching of cylindrical attapulgite flower ceramsite is comprised of following component by weight percentage: high sticking attapulgite clay powder 1～10%, attapulgite clay mine tailing 5～25%, red bentonite in powder 5～20%, mud 45～65%, diatomite mine tailing 5～20% and powdered rice hulls 1～10%.
2, input the Squeezinggranulator granulation after the batching adding stirrer for mixing of the production method of cylindrical attapulgite flower ceramsite: ⑴ with cylindrical attapulgite flower ceramsite, particle diameter is controlled at 3～20 millimeters, and particle length is controlled at 10～40 millimeters; ⑵ the particle input internally heated type revolution roasting in kilns after with granulation, maturing temperature is controlled at 550～850 ℃, and roasting time is controlled at 1～6 hour; ⑶ cool off in the particle input rotary cooler after with roasting, after overcooling and screening, be packaged as cylindrical attapulgite flower ceramsite.
Screening is chip and the ashes that produce in roasting process in order to remove cylindrical attapulgite flower ceramsite.
The present invention does not need mud is concentrated and drying and other treatment, greatly reduces the production cost of haydite.
Because the granule strength after the granulation of the present invention is higher, when adopting the internally heated type rotary kiln to carry out roasting, maturing temperature is controlled at 550～850 ℃, and it is low to have sintering temperature, reduces energy consumption, the characteristics of the fast and low production cost of speed of cooling.
Cylindrical attapulgite flower ceramsite is cylindrical, the epidermis rough porous, be a kind of lightweight, intensity is large, water-intake rate is high flower ceramsite, cylindrical attapulgite flower ceramsite can be immersed in can not produce in the water throughout the year and burst apart, and constantly slowly discharges the needed nutrition of flowers.
The present invention fully utilizes mud and mine tailing is produced cylindrical attapulgite flower ceramsite, not only is conducive to improve resource utilization, turns waste into wealth, and can also reduce land occupation, and protection of the environment and environment purification are to achieve many things at one stroke.
Cylindrical attapulgite flower ceramsite is applicable to plant various flowers and vegetables.
Embodiment
The invention will be further described below in conjunction with embodiment:
1, the batching of cylindrical attapulgite flower ceramsite is comprised of following component by weight percentage: high sticking attapulgite clay powder 4%, attapulgite clay mine tailing 18%, red bentonite in powder 12%, mud 52%, diatomite mine tailing 10% and powdered rice hulls 4%.
2, input the Squeezinggranulator granulation after the batching adding stirrer for mixing of the production method of cylindrical attapulgite flower ceramsite: ⑴ with cylindrical attapulgite flower ceramsite, particle diameter is controlled at 6 millimeters, and particle length is controlled at 15～20 millimeters; ⑵ the particle input internally heated type revolution roasting in kilns after with granulation, maturing temperature is controlled at 750～800 ℃, and roasting time is controlled at 3 hours; ⑶ cool off in the particle input rotary cooler after with roasting, after overcooling and screening, be packaged as cylindrical attapulgite flower ceramsite.
Claims (1)
1. cylindrical attapulgite flower ceramsite, it is characterized in that the batching of cylindrical attapulgite flower ceramsite is comprised of following component by weight percentage: high sticking attapulgite clay powder 1～10%, attapulgite clay mine tailing 5～25%, red bentonite in powder 5～20%, mud 45～65%, diatomite mine tailing 5～20% and powdered rice hulls 1～10%;
Input the Squeezinggranulator granulation after the batching adding stirrer for mixing of the production method of described cylindrical attapulgite flower ceramsite: ⑴ with cylindrical attapulgite flower ceramsite, particle diameter is controlled at 3～20 millimeters, and particle length is controlled at 10～40 millimeters; ⑵ the particle input internally heated type revolution roasting in kilns after with granulation, maturing temperature is controlled at 550～850 ℃, and roasting time is controlled at 1～6 hour; ⑶ cool off in the particle input rotary cooler after with roasting, after overcooling and screening, be packaged as cylindrical attapulgite flower ceramsite;
The sticking attapulgite clay powder of described height refers to get 28.0g attapulgite clay powder sample, add in the suspension cup of homogenizer, add again 372g water, the suspension cup is placed on the homogenizer, under 11000 rev/mins rotating speed, stirred 20 minutes, to pour in the beaker of 250ml through the high-speed stirring sample suspension again the viscosity of using NDJ-1 type rotational viscosimeter to test its suspension, tested viscosity value 〉=2200 into
MPasThe attapulgite clay powder be high sticking attapulgite clay powder.
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| CN2011103523642A CN102503537B (en) | 2011-11-10 | 2011-11-10 | Cylindrical attapulgite flower ceramsite |
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| CN2011103523642A CN102503537B (en) | 2011-11-10 | 2011-11-10 | Cylindrical attapulgite flower ceramsite |
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| CN102503537A CN102503537A (en) | 2012-06-20 |
| CN102503537B true CN102503537B (en) | 2013-04-17 |
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| CN102503537A (en) | 2012-06-20 |
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Effective date of registration: 20190705 Address after: 211700 Yulan Avenue 38-2, Xuyi County Economic Development Zone, Huaian City, Jiangsu Province Patentee after: Jiangsu Shiao Nonmetallic Application Technology Co., Ltd. Address before: No. 40 Shiqiao Road, Xucheng Town, Xuyi County, Huaian City, Jiangsu Province, 211700 Patentee before: Xu Qinghua |
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