CN101638312B - Method for preparing light ceramsite by adopting DSD acid industrial sludge - Google Patents
Method for preparing light ceramsite by adopting DSD acid industrial sludge Download PDFInfo
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- CN101638312B CN101638312B CN2009100180060A CN200910018006A CN101638312B CN 101638312 B CN101638312 B CN 101638312B CN 2009100180060 A CN2009100180060 A CN 2009100180060A CN 200910018006 A CN200910018006 A CN 200910018006A CN 101638312 B CN101638312 B CN 101638312B
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- dsd acid
- dsd
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- sludge
- mud
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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
Abstract
The invention provides a method for preparing light ceramsite by adopting DSD acid industrial sludge, which is characterized in that the following raw materials are utilized in the method: DSD acid sludge, binders, fluxing agents and expanding agents. The method comprises the following steps: (1) respectively grinding the dried DSD acid sludge and the binders and sieving the substances with 100-mesh sieves; (2) sieving the fluxing agents and the expanding agents with 300-mesh sieves; (3) weighing the binders, the fluxing agents, the expanding agents and the dried DSD acid sludge in a weight ratio of 3-5:0.5:0.5:4-6 and pelletizing the substances in a drum-type pelletizer with water as an adhesive to prepare raw pellets with the diameter being about 5mm; (4) drying the raw pellets at normal temperature; (5) placing the raw pellets into box-type resistance furnaces, transferring the raw pellets into tube-type resistance furnaces to be fired after preheating and cooling the ceramsite at room temperature, thus obtaining the DSD acid sludge light ceramsite. The method lowers the cost on sludge treatment, avoids environmental pollution and features simple preparation process. The prepared DSD acid sludge light ceramsite has the characteristics of light weight, low water absorption, large specific surface area and the like.
Description
Technical field
The present invention relates to a kind of DSD acid (4,4-diaminobenzil-disulfonic acid) industrial sludge of using and fire the method for light ceramic, belong to the environmental technology field.
Background technology
DSD acid production process comprises sulfonation, oxidation and reduction three phases.Can produce a kind of organic waste water of difficult degradation in reduction process, handling this waste water is to adopt the method for sample Fenton oxidation+flocculation and produced a large amount of mud in flocculation process.Because the Decomposition of oxidation stage mostly is hardly degraded organic substance in the mud.Present most of enterprise selects mud is directly piled up discharging, not only takies a large amount of soils, and the hardly degraded organic substance in the mud can remain in the environment always, causes secondary pollution.
Summary of the invention
The present invention is directed to the problem of the treatment technology existence of output mud in the existing DSD acid production process, provide a kind of technology to utilize the DSD acid industrial sludge to prepare the method for light ceramic simply and easily, the light ceramic of preparation has characteristics such as tap density is little, pellet density is little, water-intake rate is little, specific surface area is big.
The DSD of utilization acid industrial sludge of the present invention prepares the method for light ceramic, employed raw material is a DSD acid mud (the output mud of DSD acid producing waste water), binding agent, fusing assistant and swelling agent, binding agent adopts clay (preferably meager clay), fusing assistant is formulated according to 1: 1 mixed of mass ratio by the bessemer furnace slag that aluminum oxide industry red mud after handling through rinsing and Steel industry produce, swelling agent is formulated according to 1: 1 ratio of mass ratio by dewatered sludge and agricultural crop straw (as maize straw) that municipal sewage plant's second pond produces, and concrete preparation process may further comprise the steps:
(1) DSD after drying and other treatment acid mud warp and binding agent is broken respectively, and sieve with 100 mesh sieves and (to make particle diameter≤0.15mm);
(2) fusing assistant and swelling agent sieve processing with 300 mesh sieves and (make particle diameter≤0.05mm);
(3) with weight ratio 3-5: 0.5: 0.5: the ratio of 4-6 takes by weighing binding agent, fusing assistant, swelling agent and mummification DSD acid mud, is that cakingagent carries out granulation with water in the drum-type tablets press, makes the raw material ball of the about 5mm of diameter;
(4) raw material ball is placed under the normal temperature dry 10 hours-20 hours;
(5) raw material ball is put into 350 ℃ of-400 ℃ of chamber type electric resistance furnaces, preheating 15 minutes-20 minutes is transferred to rapidly in 1080 ℃-1130 ℃ the tube type resistance furnace and was fired 10 minutes-15 minutes, and haydite is placed the room temperature cooling, can obtain DSD acid mud light ceramic.
The present invention utilizes the output mud of DSD acid producing waste water to prepare light ceramic, not only can eliminate secondary pollution, and can reduce the expense of handling mud greatly, has avoided environmental pollution.The technology of preparation light ceramic is simple, and the DSD acid mud light ceramic outward appearance of preparation is brown or the coarse globular solids of yellow surfaces, and tap density is 500-800kg/m
3, pellet density is 1100-1700kg/m
3, water-intake rate is 5-12%, has characteristics such as lightweight, water-intake rate is little, specific surface area is big.The light ceramic of the present invention's preparation can be directly used in bio-chemical fluidized bed and filler BAF, also can be used to produce light ceramic tile, light ceramsite concrete building block, light weight concrete, insulating board, lagging material, lagging material etc.
Description of drawings
Fig. 1 is the light ceramic outside drawing that the present invention prepares.
Embodiment
Embodiment 1
(1) DSD acid mud is through drying and other treatment, with two kinds of raw material crushings, sieves (particle diameter≤0.15mm) with 100 mesh sieves after the clay oven dry is handled;
(2) fusing assistant and swelling agent sieve processing (particle diameter≤0.05mm) with 300 mesh sieves;
(3) with weight ratio 5: 0.5: 0.5: 4 ratio takes by weighing binding agent, fusing assistant, swelling agent and mummification DSD acid mud, is that cakingagent carries out granulation with water in the drum-type tablets press, makes the raw material ball of the about 5mm of diameter;
(4) raw material ball is placed under the normal temperature dry 10 hours;
(5) raw material ball is put into 350 ℃ of chamber type electric resistance furnaces, transferred to rapidly in 1080 ℃ the tube type resistance furnace and fired 10 minutes 15 minutes warm up time, haydite is placed the room temperature cooling, can obtain DSD acid mud light ceramic.
The light ceramic outward appearance of preparation is the coarse globular solids of yellow surfaces, and tap density is 524kg/m
3, pellet density is 1176kg/m
3, water-intake rate is 11.8%.The light ceramic sample of preparation is shown in one basket of the rightmost among Fig. 1.
Embodiment 2
(1) DSD acid mud is through drying and other treatment, with two kinds of raw material crushings, sieves (particle diameter≤0.15mm) with 100 mesh sieves after the clay oven dry is handled
(2) fusing assistant and swelling agent sieve processing (particle diameter≤0.05mm) with 300 mesh sieves;
(3) with weight ratio 5: 0.5: 0.5: 5 ratio takes by weighing binding agent, fusing assistant, swelling agent and mummification DSD acid mud, is that cakingagent carries out granulation with water in the drum-type tablets press, makes the raw material ball of the about 5mm of diameter;
(4) raw material ball is placed under the normal temperature dry 13 hours;
(5) raw material ball is put into 365 ℃ of chamber type electric resistance furnaces, transferred to rapidly in 1100 ℃ the tube type resistance furnace and fired 12 minutes 16 minutes warm up time, haydite is placed the room temperature cooling, can obtain DSD acid mud light ceramic.
The light ceramic outward appearance of preparation is the coarse globular solids of yellow surfaces, and tap density is 638kg/m
3, pellet density is 1397kg/m
3, water-intake rate is 9.6%.The light ceramic sample of preparation is shown in left several the 3rd baskets among Fig. 1.
Embodiment 3
(1) DSD acid mud is through drying and other treatment, with two kinds of raw material crushings, sieves (particle diameter≤0.15mm) with 100 mesh sieves after the clay oven dry is handled
(2) fusing assistant and swelling agent sieve processing (particle diameter≤0.05mm) with 300 mesh sieves;
(3) with weight ratio 4: 0.5: 0.5: 5 ratio takes by weighing binding agent, fusing assistant, swelling agent and mummification DSD acid mud, is that cakingagent carries out granulation with water in the drum-type tablets press, makes the raw material ball of the about 5mm of diameter;
(4) raw material ball is placed under the normal temperature dry 15 hours;
(5) raw material ball is put into 385 ℃ of chamber type electric resistance furnaces, transferred to rapidly in 1110 ℃ the tube type resistance furnace and fired 14 minutes 18 minutes warm up time, haydite is placed the room temperature cooling, can obtain DSD acid mud light ceramic.
The light ceramic outward appearance of preparation is the coarse globular solids of yellow surfaces, and tap density is 706kg/m
3, pellet density is 1405kg/m
3, water-intake rate is 7.4%.The light ceramic sample of preparation is shown in left several second baskets among Fig. 1.
Embodiment 4
(1) DSD acid mud is through drying and other treatment, with two kinds of raw material crushings, sieves (particle diameter≤0.15mm) with 100 mesh sieves after the clay oven dry is handled
(2) fusing assistant and swelling agent sieve processing (particle diameter≤0.05mm) with 300 mesh sieves;
(3) with weight ratio 3: 0.5: 0.5: 6 ratio takes by weighing binding agent, fusing assistant, swelling agent and mummification DSD acid mud, is that cakingagent carries out granulation with water in the drum-type tablets press, makes the raw material ball of the about 5mm of diameter;
(4) raw material ball is placed under the normal temperature dry 20 hours;
(5) raw material ball is put into 400 ℃ of chamber type electric resistance furnaces, transferred to rapidly in 1130 ℃ the tube type resistance furnace and fired 15 minutes 20 minutes warm up time, haydite is placed the room temperature cooling, can obtain DSD acid mud light ceramic.
The light ceramic outward appearance of preparation is the coarse globular solids of yellow surfaces, and tap density is 784kg/m
3, pellet density is 1680kg/m
3, water-intake rate is 5.0%.The light ceramic sample of preparation is shown in one hurdle of the Far Left among Fig. 1.
Claims (1)
1. method of utilizing the DSD acid industrial sludge to prepare light ceramic, it is characterized in that: employed raw material is DSD acid mud, binding agent, fusing assistant and swelling agent, binding agent adopts clay, fusing assistant is formulated according to 1: 1 mixed of mass ratio by the bessemer furnace slag that aluminum oxide industry red mud after handling through rinsing and Steel industry produce, swelling agent is formulated according to 1: 1 ratio of mass ratio by dewatered sludge and agricultural crop straw that municipal sewage plant's second pond produces, and concrete preparation process may further comprise the steps:
(1) sieves with acid mud warp of the DSD after the drying and other treatment and binding agent fragmentation respectively, and with 100 mesh sieves;
(2) fusing assistant and swelling agent sieve processing with 300 mesh sieves;
(3) with weight ratio 3-5: 0.5: 0.5: the ratio of 4-6 takes by weighing binding agent, fusing assistant, swelling agent and mummification DSD acid mud, is that cakingagent carries out granulation with water in the drum-type tablets press, makes the raw material ball of diameter 5mm;
(4) raw material ball is placed under the normal temperature dry 10 hours-20 hours;
(5) raw material ball is put into 350 ℃ of-400 ℃ of chamber type electric resistance furnaces, preheating 15 minutes-20 minutes is transferred to rapidly in 1080 ℃-1130 ℃ the tube type resistance furnace and was fired 10 minutes-15 minutes, and haydite is placed the room temperature cooling, can obtain DSD acid mud light ceramic.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009100180060A CN101638312B (en) | 2009-08-18 | 2009-08-18 | Method for preparing light ceramsite by adopting DSD acid industrial sludge |
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| CN101638312B true CN101638312B (en) | 2011-08-10 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102010225A (en) * | 2010-10-28 | 2011-04-13 | 山东大学 | Method for preparing ceramic granules with lake sediment |
| CN106365608A (en) * | 2016-08-28 | 2017-02-01 | 梁乔保 | Building material |
| CN106587840B (en) * | 2016-12-15 | 2018-07-10 | 武汉钢铁有限公司 | The preparation method of converter slag baking-free ceramicite |
| CN106810204B (en) * | 2016-12-26 | 2020-09-25 | 山东大学 | Fenton iron mud cathode and anode integrated ceramsite and method for preparing ceramsite by utilizing Fenton iron mud |
| CN106892617A (en) * | 2017-01-24 | 2017-06-27 | 内蒙古科韵环保材料股份公司 | A kind of environmentally friendly seepage brick and its manufacture method |
| CN107344847A (en) * | 2017-07-04 | 2017-11-14 | 伟泰科技（无锡）有限公司 | The biologic packing material and preparation technology prepared using mud desiccation blue-green algae |
| CN113354222A (en) * | 2021-05-20 | 2021-09-07 | 广州大学 | Road building slag using municipal sludge as raw material and preparation method and application thereof |
| CN113651588B (en) * | 2021-07-21 | 2022-09-13 | 湖南省环境保护科学研究院 | Efficient phosphorus-removing baking-free ceramsite and preparation method and application thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1380137A (en) * | 2002-03-14 | 2002-11-20 | 安徽工业大学华冶自动化工程公司 | Spherical porous light haydite for treating waste water and its production method |
| CN1440953A (en) * | 2003-04-13 | 2003-09-10 | 林生明 | Light stone powder-sea sludge haydite and its production process |
| CN1644565A (en) * | 2004-12-14 | 2005-07-27 | 南开大学 | Method for producing light ceramic particles from mud in water supply plant and sewage treating plant |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1380137A (en) * | 2002-03-14 | 2002-11-20 | 安徽工业大学华冶自动化工程公司 | Spherical porous light haydite for treating waste water and its production method |
| CN1440953A (en) * | 2003-04-13 | 2003-09-10 | 林生明 | Light stone powder-sea sludge haydite and its production process |
| CN1644565A (en) * | 2004-12-14 | 2005-07-27 | 南开大学 | Method for producing light ceramic particles from mud in water supply plant and sewage treating plant |
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