CN102173745A - Method for baking ceramsite by using town sludge, loess and iron ore powder - Google Patents
Method for baking ceramsite by using town sludge, loess and iron ore powder Download PDFInfo
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- CN102173745A CN102173745A CN2010106209440A CN201010620944A CN102173745A CN 102173745 A CN102173745 A CN 102173745A CN 2010106209440 A CN2010106209440 A CN 2010106209440A CN 201010620944 A CN201010620944 A CN 201010620944A CN 102173745 A CN102173745 A CN 102173745A
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- haydite
- kiln
- iron ore
- loess
- rotary kiln
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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 discloses a method for baking ceramsite by using town sludge, loess and iron ore powder. The method comprises the following steps of: milling 1 to 36 weight percent of original sludge, 45 to 50 weight percent of loess and 16 to 22 weight percent of iron ore powder by wheels, mixing and stirring to homogenize the materials; and ageing, pelleting, screening, sintering and expanding, and performing air cooling. The bulk density of the obtained ceramsite is 300 to 500Kg/m<3>, the compression strength is 1 to 3.0Mpa, one-hour water absorption is 8 to 10 percent, and the grain size of the product is 1 to 26mm; and the original sludge, the loess and the iron ore powder are used as the raw materials, the ceramsite is directly baked by taking cavings as fuel, the treatment capacity of the sludge is large, the production cost is low, secondary pollution in the production process is avoided, and the performance of the obtained ceramsite product meets the standard requirement of GB/T17431.1-1998.
Description
Technical field:
The present invention relates to a kind of production ceramsite sintering method, relate in particular to the method for the mud, loess and the powdered iron ore baking ceramsite that produce with sewage works such as town sewage plant, woollen mill, printing and dyeing mill, paper mills.
Background technology:
According to incompletely statistics, the day output of national sewage is about 300,000,000 m
3, urban wastewater treatment firm is disposed of sewage, and what stay to the end will be mud, it is the extremely complicated heterogeneous body that a kind of organic relic, bacterium thalline, the inorganic particle that contains heavy metal, colloid etc. are formed.Main characteristic is to contain the moisture height, and the organic content height is degenerated smellyly easily, and particle is thinner, is gluey liquid, and it is the concentrated thing between liquid and solid, can't carry out solid-liquid separation by precipitation.Because the many pollutents of mud enrichment of city dirt, wastewater treatment output, processing costs is very high, at will abandon and to cause secondary pollution, also can cause sequela, it has become the technical bottleneck of restriction town sewage treatment industry development, also is the social enviroment protection problem that the whole society extremely pays close attention to, payes attention to.At present, the dispose of sewage mud of output of most urban wastewater treatment firms adopts usually simply with producing with the fortune mode, mud transported to topple in the countryside or landfill, like this, not only mud does not obtain basic solution, and take a large amount of soils, also can pollute, seriously jeopardize contaminate environment and HUMAN HEALTH ground surface environment and groundwater quality.
City sludge is turned waste into wealth, and existing both at home and abroad technology and the realization that utilizes city sludge to prepare haydite used.Shandong University disclosed a kind of method for preparing haydite with municipal sewage treatment mud on September 4th, 2007 in CN101148346A, it is a raw material with mud, the flyash of power plant, the clay of municipal wastewater treatment plant, and the ratio of weight and number between the dewatered sludge, flyash, clay is 15～25: 25～35: 10～15.
The first step adds water and stirs up to being thick, makes raw material ball then;
Second step was put into the electric heating constant temperature air dry oven in 105 ℃ of dryings 1 hour with raw material ball;
The 3rd step put into raw material ball cabinet-type electric furnace again and is warmed up to 200 ℃, o'clock 10 minute warm up time, continue in Pang formula stove, to be warming up to 1100 ℃, and roasting 5 minutes naturally cools to room temperature, makes haydite.Make the globular solids that haydite is yellow or brown, loose volume weight (tap density) is 650～750kg/m
3, particle unit weight (apparent density) is 1050～1150kg/m
3, the 1h water-intake rate is 5.8%%, the table specific area is 2.29～5.56m
2/ g.In this invention, indicated the chemical ingredients and the content thereof of each raw material.
South China Science ﹠ Engineering University disclosed a kind of method of utilizing the biological sludge of sewage treatment plant baking clay ceramsite on March 7th, 2002 in CN1367156A, its main raw material and weight percent are: clay 71%～89%, sewage work's dewatered sludge 6～21%, Wingdale 3～8%, iron powder 2～6%.Each raw material is all had strict composition requirement, and specific as follows: the loss on ignition 28～62 of dewatered sludge contains sio
27～45, Al
2o
33～13, Fe
2o
32～15, Cao1～3, Mgo1～2, K
2O1～3, Na
2O1～2, P
2o
54～8;
The loss on ignition 5～12 of clay contains sio
256～63, Al
2o
313～21, Fe
2o
33～11, Cao1～3, Mgo1～3;
The loss on ignition 35～40 of Wingdale contains sio
24～8, Al
2o
31～3, Fe
2o
30.5～2, Cao41～51, Mgo1～3;
The loss on ignition 5～15 of flyash contains sio
27～18, Al
2o
35～15, Fe
2o
330～62, Cao1～4, Mgo1～3;
Though the existing method of utilizing mud or riverway sludge baking ceramsite in the prior art, but existing method can only single utilization dewatered sludge or riverway sludge, and former raw sludge must carry out dewatered drying earlier, add other raw materials such as flyash, Wingdale, clay then and fire, what have also will increase ceramsite propping agent and just can fire.The dewatered drying of mud handles that not only cost is very high, and in the sludge dehydrating and drying process, the sewage smell volatilization in the mud can cause handling the secondary pollution of ground air, produces SO
2, directly influence people's orthobiosis and healthy, in the process of mixing, also to increase cleaning water, should consume a large amount of heat energy consumptions, consume a large amount of water again, the cost of ceramsite sintering is too high, very uneconomical, the ability of handling mud is also limited, therefore is difficult to apply.
Summary of the invention:
The invention provides a kind of method of utilizing city sludge, loess and powdered iron ore baking ceramsite, adopt this method directly to dispose primary sludge in environmental protection ground, do not need mud is dried processing, more can not cause secondary pollution to environment, it is more economical more energy-conservation to utilize cavings to act as a fuel, and utilizes city sludge, loess and powdered iron ore to burn out light ceramic.
The described method of utilizing mud, loess and powdered iron ore baking ceramsite comprises the steps:
The first step, raw material is equipped with
1. city sludge, it is the urban wastewater treatment firm primary sludge that the primary sludge of output or woollen mill, printing and dyeing mill, paper mill produce of disposing of sewage, water ratio is 70%～85%.
2. loess, the loess of getting the deserted mountain is through mummification, the removal of impurity, carry out dispersion and fining after, guarantee particle≤1.5mm, water content is controlled at 4%～6%; Mummification adopt and to dry or airing or utilize is produced the waste heat that haydite produces and dried;
3. powdered iron ore, powdered iron ore is a kind of ore deposit soil on the mountain, is commonly called as breeze, the powdered iron ore that will take from the mountain is through dehydration and drying, and water ratio is controlled at 2%～3%, then dispersion and fining, fineness≤80 orders, the mummification employing of powdered iron ore are dried or the waste heat of airing or the generation of utilization production haydite is dried;
In second step, rolling mixes homogenizing
Material is got mud 31%～36% by weight ratio, loess 45%～50%, and powdered iron ore 16%～22% enters the rolling mixing equipment and carries out rolling and mix, and makes matter homogenizing.
In the 3rd step, stack ageing in the canopy
Second step was obtained material at indoor stacking ageing 24h～48h, make material self organic substance composition produce fermentative action, again material is entered biaxial rneader and mix, make big blocky material loosening, the moisture humidity is even.
The 4th step, mechanical pelleting
Use pair roller to squeeze the grain machine the 3rd material that goes on foot acquisition is carried out the pair roller granulation, particle diameter is controlled between 10mm～14mm.
The 5th step, the screening of grain base
The particulate materials that the 4th step the was obtained screening of rolling, usefulness is produced in the underproof reclaiming of undersized meal in small, broken bits and oversize granule, and a base that screens qualifiedly enters in the haydite preheating in rotary kiln kiln.
The 6th step, the preheating oven dry
The 5th step was obtained a qualified grain embryo to be sent in the haydite rotary kiln and carries out preheating in the pre-heating kiln and dry; the thermograde of preheating drying belt is 150 ℃～650 ℃; the preheating oven dry is carried out in progressive intensification; the moisture of haydite grain embryo is thoroughly dried, and a grain embryo enters in the rotary kiln preheating and dries the progressive time and need 20～25 minutes approximately.
The 7th step, high-temperature roasting, sintering grow
The grain embryo is after the preheating oven dry of the 6th step, the grain embryo is progressive thermal zone to rotary kiln, thermal zone thermograde is 650 ℃～1200 ℃, wherein high-temperature roasting sintering grow district thermograde is 1130 ℃～1200 ℃, it is the top temperature band, highest temperature band is about 3.5 meters long, roasting time is 4～6 minutes, and the grain embryo forms light ceramic in the sintering grow of high-temperature roasting band, between former grain embryo 10mm～14mm, through high-temperature roasting, haydite swelling, the coefficient of expansion is at 2～3 times, there is part grain embryo quick-fried broken, becomes small-particle at roasting process, the ceramic product of output becomes continuous grading, and particle diameter is 1mm～26mm; The progressive time course of high temperature is 20～25 minutes.
The 8th step, the cooling classification
The haydite kiln discharge enters in the revolution cooling kiln through rotary kiln discharge port pipeline, enter on the haydite body of revolution in the cooling kiln temperature about 800～900 ℃, the revolution cooling kiln cools off with the natural wind rolling revolving, the haydite temperature is descended gradually, the haydite sorting equipment equipment of cooled ceramic product on cooling kiln carries out sieving and grading, obtain the finished product haydite of corresponding specification, finished product grain size is 1mm～26mm; What be classified as 1mm～5mm is fine aggregate-Tao sand, and 6mm～26mm's is coarse aggregate-haydite.
Further
In the 6th step and the 7th step, described rotary kiln is fuel with the cavings, the fineness of cavings is 0.5mm～1.2mm, the hot blast that elegance produces with 800～900 ℃ of haydites of cooling kiln cooling partly is incorporated into gas blower and directly cavings and hot blast is mixed the spray mode and spray into the rotary kiln internal combustion, and the straying quatity of cavings is 2.2m
3/ h～2.8m
3(about 1T/h～1.13T/h), secondary air utilizes the interior remaining hot blast of haydite cooling kiln to enter in the rotary kiln by the discharge port pipeline to/h, satisfies the needs of rotary kiln secondary air oxygenation.
The technical parameter of gained ceramic product is as follows:
1. tap density: 300～500kg/m
32. apparent density: 510～800kg/m
3
3. cylindrical compress strength: 1Mpa～3MPa; 4. product cut size: 1mm～26mm;
5. 1h water-intake rate :≤10%; 6. thermal conductivity :≤0.12w/mk.
Product meets light-weight aggregate (haydite) standard GB/T17431.1-1998 requirement, and product detects through quality testing department, and its quality product reaches premium grads.
Because primary sludge, loess and powdered iron ore that the present invention directly utilizes town sewage to handle are raw material, utilize very cheap cavings to be fuel, loess and powdered iron ore directly enter rolling mixing whipping device and carry out rolling, mixing, stirring through adding primary sludge by proportioning behind the dispersion and fining, make matter homogenizing, pass through ageing, granulation again, enter the preheating in rotary kiln kiln at last and carry out the preheating oven dry, carry out the high-temperature roasting sintering grow again.Neither need in process of production mud is carried out drying, do not need to increase other propping agent yet, whipping agent, the contained moisture of mud and mud itself can both make full use of, in the process of mixing, need not to increase water, primary sludge can be directly as the raw material of producing haydite, can not cause secondary pollution in the production process to the grown place air, mud shared proportional quantity in various materials is higher, treatment capacity is big, adopt the present invention can make mud text-processing difficulty big, the problem that expense cost is high is resolved, and has realized the utilization of waste comprehensive resource, and really having reached turns waste into wealth.In producing sintering procedure, be combustion fuel with the cavings, replaced traditional with coal, gas, Electric heating, not only more economically, and rice hull ash has solved in the ceramsite sintering process because of the high-temperature roasting haydite, the difficult problem of the softening sticking kiln of sintering grow, ring formation, stablize production, improved the output of haydite.Warm air in cavings and the cooling kiln mixes the spray combustion system, secondary air is utilized the residue hot blast in the cooling kiln, enter in the rotary kiln by the discharge port pipeline, not only heat energy is fully used, improve the utilising efficiency of heat, reduced the consumption of ceramsite sintering thermal energy significantly, reduced production cost, make gained haydite performance more stable simultaneously, the ceramic product of making meets light-weight aggregate (haydite) standard GB/T17431.1-1998 requirement.Enter in the preheating oven dry rotary kiln from haydite grain embryo and to burn till kiln discharge to cooling kiln to haydite, about 40～50 minutes of whole process.It is higher to dispose city sludge production haydite efficient with the present invention, and economic benefit is better.
Embodiment:
Illustrate the specific embodiment of the present invention below:
The first step, raw material is equipped with
1. city sludge, it is the urban wastewater treatment firm primary sludge that the primary sludge of output or woollen mill, printing and dyeing mill, paper mill produce of disposing of sewage, water ratio is 70%～85%.
2. loess, the loess of getting the deserted mountain is through mummification, the removal of impurity, carry out dispersion and fining after, guarantee particle≤1.5mm, water content is controlled at 4%～6%; Mummification adopt and to dry or airing or utilize is produced the waste heat that haydite produces and dried;
3. powdered iron ore, powdered iron ore is a kind of ore deposit soil on the mountain, is commonly called as breeze, the powdered iron ore that will take from the mountain is through dehydration and drying, and water ratio is controlled at 2%～3%, then dispersion and fining, fineness≤80 orders, the mummification employing of powdered iron ore are dried or the waste heat of airing or the generation of utilization production haydite is dried;
In second step, rolling mixes homogenizing
Material is got mud 31%～36% by weight ratio, loess 45%～50%, and powdered iron ore 16%～22% enters the rolling mixing equipment and carries out rolling and mix, and makes matter homogenizing.
In the 3rd step, stack ageing in the canopy
Second step was obtained material at indoor stacking ageing 24h～48h, make material self organic substance composition produce fermentative action, again material is entered biaxial rneader and mix, make big blocky material loosening, the moisture humidity is even.
The 4th step, mechanical pelleting
Use pair roller to squeeze the grain machine the 3rd material that goes on foot acquisition is carried out the pair roller granulation, particle diameter is controlled between 10mm～14mm.
The 5th step, the screening of grain base
The particulate materials that the 4th step the was obtained screening of rolling, usefulness is produced in the underproof reclaiming of undersized meal in small, broken bits and oversize granule, and a base that screens qualifiedly enters in the haydite preheating in rotary kiln kiln.
The 6th step, the preheating oven dry
The 5th step was obtained a qualified grain embryo to be sent in the haydite rotary kiln and carries out preheating in the pre-heating kiln and dry; the thermograde of preheating drying belt is 150 ℃～650 ℃; the preheating oven dry is carried out in progressive intensification; the moisture of haydite grain embryo is thoroughly dried, and a grain embryo enters in the rotary kiln preheating and dries the progressive time and need 20～25 minutes approximately.
The 7th step, high-temperature roasting, sintering grow
The grain embryo is after the preheating oven dry of the 6th step, the grain embryo is progressive thermal zone to rotary kiln, thermal zone thermograde is 650 ℃～1200 ℃, wherein high-temperature roasting sintering grow district thermograde is 1130 ℃～1200 ℃, it is the top temperature band, highest temperature band is about 3.5 meters long, roasting time is 4～6 minutes, the grain embryo forms light ceramic in the sintering grow of high-temperature roasting band, and former grain embryo forms haydite through the high-temperature roasting after, and the coefficient of expansion is 2～3 times, there is part grain embryo quick-fried broken at roasting process, become small-particle, the ceramic product of output becomes continuous grading, and particle diameter is 1mm～26mm; The progressive time course of high temperature is 20～25 minutes;
The 8th step, the cooling classification
The haydite kiln discharge enters in the revolution cooling kiln through rotary kiln discharge port pipeline, enter on the haydite body of revolution in the cooling kiln temperature about 800～900 ℃, the revolution cooling kiln cools off with the natural wind rolling revolving, the haydite temperature is descended gradually, the haydite sorting equipment equipment of cooled ceramic product on cooling kiln carries out sieving and grading, obtain the finished product haydite of corresponding specification, finished product grain size is 1mm～26mm; What be classified as 1mm～5mm is fine aggregate-Tao sand, and 6mm～26mm's is coarse aggregate-haydite.
In the 6th step and the 7th step, described rotary kiln is fuel with the cavings, the fineness of cavings is 0.5mm～1.2mm, the hot blast that elegance produces with 800～900 ℃ of haydites of cooling kiln cooling partly is incorporated into gas blower and directly cavings and hot blast is mixed the spray mode and spray into the rotary kiln internal combustion, and the straying quatity of cavings is 2.2m
3/ h～2.8m
3(about 1T/h～1.13T/h), secondary air utilizes the interior remaining hot blast of haydite cooling kiln to enter in the rotary kiln by the discharge port pipeline to/h, satisfies the needs of rotary kiln secondary air oxygenation.
The technical parameter of gained ceramic product is as follows:
1., tap density: 300～500kg/m
32., apparent density: 510～800kg/m
3
3., cylindrical compress strength: 1Mpa～3MPa; 4., product cut size: 1mm～26mm;
5., 1h water-intake rate :≤10%; 6., thermal conductivity :≤0.12w/mk.
Product meets light-weight aggregate (haydite) standard GB/T17431.1-1998 requirement, and product detects through quality testing department, and its quality product reaches premium grads.
Claims (2)
1. utilize the method for city sludge, loess and powdered iron ore baking ceramsite, comprise the steps: the first step, raw material is equipped with
1. city sludge, it is the urban wastewater treatment firm primary sludge that the primary sludge of output or woollen mill, printing and dyeing mill, paper mill produce of disposing of sewage, water ratio is 70%～85%.
2. loess, the loess of getting the deserted mountain is through mummification, the removal of impurity, carry out dispersion and fining after, guarantee particle≤1.5mm, water content is controlled at 4%～6%; Mummification adopt and to dry or airing or utilize is produced the waste heat that haydite produces and dried;
3. powdered iron ore, powdered iron ore is a kind of ore deposit soil on the mountain, is commonly called as breeze, the powdered iron ore that will take from the mountain is through dehydration and drying, and water ratio is controlled at 2%～3%, then dispersion and fining, fineness≤80 orders, the mummification employing of powdered iron ore are dried or the waste heat of airing or the generation of utilization production haydite is dried;
In second step, rolling mixes homogenizing
Material is got mud 31%～36% by weight ratio, loess 45%～50%, and powdered iron ore 16%～22% enters the rolling mixing equipment and carries out rolling and mix, and makes matter homogenizing.
In the 3rd step, stack ageing in the canopy
Second step was obtained material at indoor stacking ageing 24h～48h, make material self organic substance composition produce fermentative action, again material is entered biaxial rneader and mix, make big blocky material loosening, the moisture humidity is even.
The 4th step, mechanical pelleting
Use pair roller to squeeze the grain machine the 3rd material that goes on foot acquisition is carried out the pair roller granulation, particle diameter is controlled between 10mm～14mm.
The 5th step, the screening of grain base
The particulate materials that the 4th step the was obtained screening of rolling, usefulness is produced in the underproof reclaiming of undersized meal in small, broken bits and oversize granule, and a base that screens qualifiedly enters in the haydite preheating in rotary kiln kiln.
The 6th step, the preheating oven dry
The 5th step was obtained a qualified grain embryo to be sent in the haydite rotary kiln and carries out preheating in the pre-heating kiln and dry; the thermograde of preheating drying belt is 150 ℃～650 ℃; the preheating oven dry is carried out in progressive intensification; the moisture of haydite grain embryo is thoroughly dried, and a grain embryo enters in the rotary kiln preheating and dries the progressive time and need 20～25 minutes approximately.
The 7th step, high-temperature roasting, sintering grow
The grain embryo is after the preheating oven dry of the 6th step, the grain embryo is progressive thermal zone to rotary kiln, thermal zone thermograde is 650 ℃～1200 ℃, wherein high-temperature roasting sintering grow district thermograde is 1130 ℃～1200 ℃, it is the top temperature band, highest temperature band is about 3.5 meters long, roasting time is 4～6 minutes, and the grain embryo forms light ceramic in the sintering grow of high-temperature roasting band, between former grain embryo 10mm～14mm, through high-temperature roasting, haydite swelling, the coefficient of expansion is at 2～3 times, there is part grain embryo quick-fried broken, becomes small-particle at roasting process, the ceramic product of output becomes continuous grading, and particle diameter is 1mm～26mm; The progressive time course of high temperature is 20～25 minutes.
The 8th step, the cooling classification
The haydite kiln discharge enters in the revolution cooling kiln through rotary kiln discharge port pipeline, enter on the haydite body of revolution in the cooling kiln temperature about 800～900 ℃, the revolution cooling kiln cools off with the natural wind rolling revolving, the haydite temperature is descended gradually, the haydite sorting equipment equipment of cooled ceramic product on cooling kiln carries out sieving and grading, obtain the finished product haydite of corresponding specification, finished product grain size is 1mm～26mm; What be classified as 1mm～5mm is fine aggregate-Tao sand, and 6mm～26mm's is coarse aggregate-haydite.
2. according to the described method of utilizing city sludge, loess and powdered iron ore baking ceramsite of claim 1, it is characterized in that: in the 6th step and the 7th step, described rotary kiln is fuel with the cavings, the fineness of cavings is 0.5mm～1.2mm, the hot blast that elegance produces with 800～900 ℃ of haydites of cooling kiln cooling partly is incorporated into gas blower and directly cavings and hot blast is mixed the spray mode and spray into the rotary kiln internal combustion, and the straying quatity of cavings is 2.2m
3/ h～2.8m
3/ h, secondary air utilizes the interior remaining hot blast of haydite cooling kiln to enter in the rotary kiln by the discharge port pipeline, satisfies the needs of rotary kiln secondary air oxygenation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106209440A CN102173745A (en) | 2010-12-29 | 2010-12-29 | Method for baking ceramsite by using town sludge, loess and iron ore powder |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106209440A CN102173745A (en) | 2010-12-29 | 2010-12-29 | Method for baking ceramsite by using town sludge, loess and iron ore powder |
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ID=44517043
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102786319A (en) * | 2012-08-15 | 2012-11-21 | 彭尹华 | Novel sludge ceramic aggregate production method |
| CN102826832A (en) * | 2012-09-24 | 2012-12-19 | 东莞市利鹏建材有限公司 | Environment-friendly ceramsite for building |
| CN105126962A (en) * | 2015-09-01 | 2015-12-09 | 安东新材料（遂宁）有限公司 | Ceramsite separating system |
| CN107382279A (en) * | 2017-08-25 | 2017-11-24 | 重庆升上源环境治理有限公司 | A kind of haydite burning process |
| CN109503123A (en) * | 2018-12-27 | 2019-03-22 | 上海市建筑科学研究院 | Utilize the light ceramic and preparation method thereof of municipal sludge preparation |
| CN110642637A (en) * | 2019-11-20 | 2020-01-03 | 浙江寰龙环境科技有限公司 | Ceramsite prepared from sand washing sludge and municipal sludge and preparation method thereof |
| CN110723960A (en) * | 2019-09-19 | 2020-01-24 | 浙江正洁环境科技有限公司 | Method for manufacturing ceramsite by using printing sludge and chemical iron sludge |
| CN113181836A (en) * | 2021-04-28 | 2021-07-30 | 福建省南安市海特机械有限公司 | High-strength environment-friendly sludge ceramsite intelligent manufacturing device and method |
| CN116947523A (en) * | 2023-08-02 | 2023-10-27 | 鸿生再生资源(福州)有限公司 | Energy-saving environment-friendly ceramsite processed by waste materials and preparation method thereof |
-
2010
- 2010-12-29 CN CN2010106209440A patent/CN102173745A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102786319A (en) * | 2012-08-15 | 2012-11-21 | 彭尹华 | Novel sludge ceramic aggregate production method |
| CN102826832A (en) * | 2012-09-24 | 2012-12-19 | 东莞市利鹏建材有限公司 | Environment-friendly ceramsite for building |
| CN105126962A (en) * | 2015-09-01 | 2015-12-09 | 安东新材料（遂宁）有限公司 | Ceramsite separating system |
| CN107382279A (en) * | 2017-08-25 | 2017-11-24 | 重庆升上源环境治理有限公司 | A kind of haydite burning process |
| CN109503123A (en) * | 2018-12-27 | 2019-03-22 | 上海市建筑科学研究院 | Utilize the light ceramic and preparation method thereof of municipal sludge preparation |
| CN110723960A (en) * | 2019-09-19 | 2020-01-24 | 浙江正洁环境科技有限公司 | Method for manufacturing ceramsite by using printing sludge and chemical iron sludge |
| CN110642637A (en) * | 2019-11-20 | 2020-01-03 | 浙江寰龙环境科技有限公司 | Ceramsite prepared from sand washing sludge and municipal sludge and preparation method thereof |
| CN113181836A (en) * | 2021-04-28 | 2021-07-30 | 福建省南安市海特机械有限公司 | High-strength environment-friendly sludge ceramsite intelligent manufacturing device and method |
| CN116947523A (en) * | 2023-08-02 | 2023-10-27 | 鸿生再生资源(福州)有限公司 | Energy-saving environment-friendly ceramsite processed by waste materials and preparation method thereof |
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Application publication date: 20110907 |