CN103396095A - Lake sludge brick-making technology - Google Patents
Lake sludge brick-making technology Download PDFInfo
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- CN103396095A CN103396095A CN2013103251276A CN201310325127A CN103396095A CN 103396095 A CN103396095 A CN 103396095A CN 2013103251276 A CN2013103251276 A CN 2013103251276A CN 201310325127 A CN201310325127 A CN 201310325127A CN 103396095 A CN103396095 A CN 103396095A
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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 relates to a lake sludge brick-making technology. The lake sludge brick-making technology comprises the following steps of: a, sludge dewatering; b, aging; c, extrusion forming; d, drying; e, pre-burning; f, roasting; and g, cooling. The lake sludge brick-making technology has the beneficial effects that firstly, lake sludge is fully utilized for brick making, waste is changed into valuable, and the environmental benefit is obvious; secondly, the raw materials are excavated nearby and are readily available, and the supply is guaranteed; thirdly, the raw materials are fully homogenized through deep treatment, so that the product performance is stable, and the rate of finished products is high; fourthly, the technological process is advanced, the technology is mature, and the energy utilization rate is high by virtue of an advanced waste-heat utilization system; fifthly, with high automation, the production efficiency is greatly improved while man power is liberated; and sixthly, the product hole rate is high, the heat conductivity is low, and the sound insulation and heat preservation effects are obvious.
Description
Technical field
The present invention relates to a kind of lake silt brickmaking technology.
Background technology
China lake, rivers are numerous, contain abundant mud, and lake silt is take the mixture of hydrous alumino silicates as main various mineral, has the characteristics such as fine particles, sand content is few, plasticity-is high, bonding force is strong, is the precious resources of producing hollow brick.Utilize lake silt to produce hollow brick, the advantages such as existing raw material sources are wide, easily exploitation, product light weight, intensity are high, energy-conservation material-saving, do not damage again the superiority such as arable lands, reduction riverbed, minimizing floods, and development prospect is wide.
Vitrified brick production technique once code is burnt and the dividing of quadratic code burning.Once code burning process refers to that the wet base that part forms out becomes buttress by artificial or mechanical stacking on kiln car, sends into kiln through running device dry to wet base, directly enters the tunnel furnace roasting and becomes the technique of product brick.It is to wet base at dry time-code once that quadratic code burns, and dry body at the roasting time-code once, is called the quadratic code firing technique therefore be total to a code secondary.,, even a small amount of use quadratic code firing technique is arranged, also there are a lot of problems in the vitrified brick of the most domestic long production technique that all adopts semi-stiff extrusion process.Domestic brick-tile industry uses the quadratic code firing technique to produce most employing of the producer of brick and tile and manually connects base, code base or simple and mechanical mode and produce the brick and tile product, and the shortcoming such as yield poorly, kind is few, labor strength is large is fettering the development of brick-tile industry.
Summary of the invention
The technical problem to be solved in the present invention is:, based on the problems referred to above, the invention provides a kind of lake silt brickmaking technology.
The present invention solves the technical scheme that its technical problem adopts: a kind of lake silt brickmaking technology comprises following step:
1. lake silt brickmaking technology comprises following step:
A, sludge dewatering: with the mud airing to water ratio＜15%(wet basis), put in storage standby;
B, ageing: standby mud is broken, be delivered to material distributing machine, the material distributing machine cloth carries out ageing to the ageing pond, and digestion time is at least one week;
C, extrusion molding: the mud after ageing is delivered to vacuum extruder by travelling belt carry out extrusion molding;
D, drying: the adobe of forming on the kiln car of dry kiln, is sent into the dry kiln drying through layering code after the cutting machine cutting, and drying temperature is 80～90 ℃, and be 6 hours time of drying;
E, pre-burning: the adobe after drying is piled up on the kiln car of roasting kiln, enter preheating kiln and carry out pre-burning, preheating temperature is 250～300 ℃, and be 10～12 hours warm up time;
F, roasting: the kiln car that goes out preheating kiln is delivered to roasting kiln through ferry bus, is incubated 200～240 minutes after maximum sintering temperature reaches 900～950 ℃;
G, cooling: the adobe after roasting, through cooling kiln discharge after cooling zone, is obtained finished product.
Further, being broken in step b first is crushed to particle diameter＜20mm through toothed roll crusher, then through the twin rollers roll-in to particle diameter＜5mm.
Further, the mode of subregion ageing is adopted in the ageing pond in step b, minute five district's clothes, feeding.
Further, the material in step b after ageing is delivered to smart roller machine and stirring mixer roll-in, is stirred to material particular diameter＜1.5mm after being delivered to the feeding machine metering by automatic material fetching machine.
Further, the vacuum tightness in step c is-0.09～-0.08MPa, forming pressure is 2～2.5MPa.
Further, with induced draft fan, waste heat is extracted out in step g, by recovery tubes, introduced dry kiln and preheating kiln.
The invention has the beneficial effects as follows: 1. take full advantage of lake silt brickmaking, turn waste into wealth, obvious environment benefit; 2. starting material are excavated nearby, and source is wide, is supplied with guarantee; 3. starting material, through the processing of the degree of depth, obtain abundant homogenizing, and product performance are stable, and yield rate is high; 4. technical process is advanced, and technology maturation adopts advanced bootstrap system, and energy utilization rate is high; 5. the automatization of height, in the time of the liberation manpower, greatly improved production efficiency; 6. the product hole ratio is high, and thermal conductivity is low, and sound insulation, heat insulation effect are remarkable.
Embodiment
The invention will be further described in conjunction with specific embodiments now, and following examples are intended to illustrate the present invention rather than limitation of the invention further.
A kind of lake silt brickmaking technology comprises following step:
A, sludge dewatering: with the mud airing to water ratio＜15%(wet basis), put in storage standby.Raw material will carry out the tests such as oxide content, plasticity index, divides to store up according to the difference of its various character and puts, so that production control and batching.
B, ageing:, owing to containing larger particle in starting material, for making it reach production requirement, must carry out to it processing such as fragmentation at different levels, pair roller, so that it obtains good grain composition and good plasticity.First standby mud first is crushed to particle diameter＜20mm through toothed roll crusher, then through the twin rollers roll-in to particle diameter＜5mm, be delivered to material distributing machine, the material distributing machine cloth carries out ageing to the ageing pond, digestion time was at least for 1 week.The mode of subregion ageing is adopted in the ageing pond, minute 5 district's clothes, feeding, independent cloth and feeding between each district, collaborative work.The feeding mode adopts the bridge type reclaimer feeding, in different position feedings, has realized that horizontal paving is perpendicular to get, and grain composition is relatively more reasonable.Material after ageing is delivered to smart roller machine and stirring mixer roll-in, is stirred to material particular diameter＜1.5mm after being delivered to feeding machine metering by automatic material fetching machine, makes the material after advanced treatment have more plasticity, flexibility.
C, extrusion molding: the mud after ageing to be delivered to vacuum extruder carry out moulding, vacuum tightness is-0.09～-0.08MPa, forming pressure is 2～2.5MPa.
D, drying: the adobe after forming on the kiln car of dry kiln, is then sent into the dry kiln drying through layering code after the cutting machine cutting, and drying temperature is 80～90 ℃, and be 6 hours time of drying.The waste heat of dry kiln, from roasting kiln and preheating kiln, wherein is provided with 9 dry kiln tracks, but is provided with the fan of bidirectional rotation between different tracks, guarantee inner airflow, and being provided with a plurality of temperature sense points, the temperature of Real-Time Monitoring different zones, arrive stricter control.
E, pre-burning: adobe has obtained enough intensity and extremely low water ratio after super-dry, by automatic setting machine, the adobe after drying is unloaded from the kiln car of dry kiln, and pile up on the kiln car of roasting kiln, enter preheating kiln and carry out pre-burning, preheating temperature is 250～300 ℃, and be 10～12 hours warm up time.Preheating kiln is exactly the extended type of preheating zone in fact, is that the design of traditional tunnel furnace is not available, not only can make whole sintering curve more steady, and can effectively utilize the waste heat of sintering process.
F, roasting: the kiln car that goes out preheating kiln is delivered to roasting kiln through ferry bus, is incubated 200～240 minutes after maximum sintering temperature reaches 900～950 ℃.Adopt the fuel gas tunnel kiln production line of two 4.1m * 150m, maximum sintering temperature is at 900～1000 ℃.Tunnel furnace adopts Sweet natural gas as the roasting thermal source,, so that kiln temperature is uniformly distributed, has guaranteed output and the quality of sintering, and has had advantages of environmental protection, economical and practical, safe and reliable.
G, cooling: the adobe after roasting, through cooling kiln discharge after cooling zone, is obtained finished product.With induced draft fan, waste heat is extracted out, by recovery tubes, introduced dry kiln and preheating kiln.
After kiln discharge, finished product is delivered to and is unloaded a yard baling equipment by ferry bus, and product is discharged to pallet quality inspection before row packing, and salable product roll off the production line after by automatic packing, by fork truck, are transported to stockyard or direct entrucking.
Raw material has obtained sufficient homogenizing through the processing of above working procedures, has improved the performances such as cohesiveness, has farthest improved the success ratio of product, guarantees the qualification rate of product more than 98%, the improvement power consumption, and energy utilization rate is greatly improved.
Take above-mentioned foundation desirable embodiment of the present invention as enlightenment, by above-mentioned description, the relevant staff can in the scope that does not depart from this invention technological thought, carry out various change and modification fully.The technical scope of this invention is not limited to the content on specification sheets, must determine its technical scope according to the claim scope.
Claims (6)
1. lake silt brickmaking technology comprises following step:
A, sludge dewatering: with the mud airing to water ratio＜15%(wet basis), put in storage standby;
B, ageing: standby mud is broken, be delivered to material distributing machine, the material distributing machine cloth carries out ageing to the ageing pond, and digestion time is at least one week;
C, extrusion molding: the mud after ageing is delivered to vacuum extruder by travelling belt carry out extrusion molding;
D, drying: the adobe of forming on the kiln car of dry kiln, is sent into the dry kiln drying through layering code after the cutting machine cutting, and drying temperature is 80～90 ℃, and be 6 hours time of drying;
E, pre-burning: the adobe after drying is piled up on the kiln car of roasting kiln, enter preheating kiln and carry out pre-burning, preheating temperature is 250～300 ℃, and be 10～12 hours warm up time;
F, roasting: the kiln car that goes out preheating kiln is delivered to roasting kiln through ferry bus, is incubated 200～240 minutes after maximum sintering temperature reaches 900～950 ℃;
G, cooling: the adobe after roasting, through cooling kiln discharge after cooling zone, is obtained finished product.
2. the lake silt brickmaking technology described according to claim 1, it is characterized in that: being broken in described step b first is crushed to particle diameter＜20mm through toothed roll crusher, then through the twin rollers roll-in to particle diameter＜5mm.
3. the lake silt brickmaking technology described according to claim 1, it is characterized in that: the mode of subregion ageing is adopted in the ageing pond in described step b, minute five district's clothes, feeding.
4. the lake silt brickmaking technology described according to claim 1, it is characterized in that: the material in described step b after ageing is delivered to smart roller machine and stirring mixer roll-in, is stirred to material particular diameter＜1.5mm after being delivered to the feeding machine metering by automatic material fetching machine.
5. the lake silt brickmaking technology described according to claim 1 is characterized in that: the vacuum tightness in described step c is-0.09～-0.08MPa, forming pressure is 2～2.5MPa.
6. the lake silt brickmaking technology described according to claim 1, is characterized in that: with induced draft fan, waste heat is extracted out in described step g, by recovery tubes, introduced dry kiln and preheating kiln.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103251276A CN103396095A (en) | 2013-07-30 | 2013-07-30 | Lake sludge brick-making technology |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103251276A CN103396095A (en) | 2013-07-30 | 2013-07-30 | Lake sludge brick-making technology |
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| CN103396095A true CN103396095A (en) | 2013-11-20 |
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| CN2013103251276A Pending CN103396095A (en) | 2013-07-30 | 2013-07-30 | Lake sludge brick-making technology |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106396635A (en) * | 2016-09-14 | 2017-02-15 | 铜仁学院 | Sludge sintered bricks, and preparation method thereof |
| CN106431188A (en) * | 2016-11-01 | 2017-02-22 | 南宁马瑞娜装饰工程有限公司 | Modified iron lake clay building material and preparation method thereof |
| CN107235707A (en) * | 2017-06-29 | 2017-10-10 | 铜仁学院 | A kind of silt sintering brick and preparation method thereof |
Citations (5)
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| CN101172841A (en) * | 2007-07-21 | 2008-05-07 | 陆振富 | Process for manufacturing mud environment protection brick |
| CN201193217Y (en) * | 2008-03-17 | 2009-02-11 | 彭强 | Device for producing sludge sintered bricks |
| CN102311240A (en) * | 2011-05-16 | 2012-01-11 | 南京鑫翔新型建筑材料有限责任公司 | Technology for manufacturing brick by using dried sludge |
| CN202284912U (en) * | 2011-10-21 | 2012-06-27 | 浙江大东吴集团建设新材料有限公司 | Novel preheating kiln |
| CN102826827A (en) * | 2012-07-16 | 2012-12-19 | 广州大学 | Sintering pitchers brick with ceramics polishing slag serving as main material and production method of sintering pitchers brick |
-
2013
- 2013-07-30 CN CN2013103251276A patent/CN103396095A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101172841A (en) * | 2007-07-21 | 2008-05-07 | 陆振富 | Process for manufacturing mud environment protection brick |
| CN201193217Y (en) * | 2008-03-17 | 2009-02-11 | 彭强 | Device for producing sludge sintered bricks |
| CN102311240A (en) * | 2011-05-16 | 2012-01-11 | 南京鑫翔新型建筑材料有限责任公司 | Technology for manufacturing brick by using dried sludge |
| CN202284912U (en) * | 2011-10-21 | 2012-06-27 | 浙江大东吴集团建设新材料有限公司 | Novel preheating kiln |
| CN102826827A (en) * | 2012-07-16 | 2012-12-19 | 广州大学 | Sintering pitchers brick with ceramics polishing slag serving as main material and production method of sintering pitchers brick |
Non-Patent Citations (3)
| Title |
|---|
| 凌霄: "《坑塘河道改造》", 31 March 2010, 中国建筑工业出版社 * |
| 岳增利等: "烧结砖一次与二次码烧工艺的选择", 《砖瓦》 * |
| 蔡辉等: "高掺量粉煤灰烧结砖工艺及设备的研究", 《砖瓦》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106396635A (en) * | 2016-09-14 | 2017-02-15 | 铜仁学院 | Sludge sintered bricks, and preparation method thereof |
| CN106431188A (en) * | 2016-11-01 | 2017-02-22 | 南宁马瑞娜装饰工程有限公司 | Modified iron lake clay building material and preparation method thereof |
| CN106431188B (en) * | 2016-11-01 | 2018-12-28 | 台州风达机器人科技有限公司 | A kind of modified irony lake mud building materials and preparation method |
| CN107235707A (en) * | 2017-06-29 | 2017-10-10 | 铜仁学院 | A kind of silt sintering brick and preparation method thereof |
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Application publication date: 20131120 |