CN105272156A - Heat-preservation sintered brick prepared from municipal sludge and production process of heat-preservation sintered brick - Google Patents
Heat-preservation sintered brick prepared from municipal sludge and production process of heat-preservation sintered brick Download PDFInfo
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- CN105272156A CN105272156A CN201510773692.8A CN201510773692A CN105272156A CN 105272156 A CN105272156 A CN 105272156A CN 201510773692 A CN201510773692 A CN 201510773692A CN 105272156 A CN105272156 A CN 105272156A
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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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Abstract
The invention discloses a heat-preservation sintered brick prepared from municipal sludge and a production process of the heat-preservation sintered brick. The heat-preservation sintered brick is prepared from, by weight, 100-150 parts of sludge, 30-50 parts of mineral wool, 6-10 parts of redispersible powder, 2-4 parts of rosin resin and 2-4 parts of diboron trioxide. Municipal sludge waste is comprehensively utilized, environment pollution is reduced, clay resource consumption is lowered, and the produced sintered brick has the advantages of being high in strength, low in water absorption rate, good in heat preservation and thermal insulation effect, wide in raw material source, low in cost and the like.
Description
Technical field
The invention belongs to New Building Materials technical field, especially a kind of utilize municipal sludge to make heat-preserving sintered brick and production technique.
Background technology
Municipal sludge refers to the waste of dispose of sewage produced solid-state, semi-solid state and liquid state, mud contains nutrition, heavy metal and pathogenic bacterium and the pathogenic bacteria etc. such as a large amount of organism, abundant nitrogen phosphorus, sludge pollution thing has long term toxicity and non-biodegradable, if do not add any discharge of process and jettison and can cause serious pollution to environment.The main Environmental Problems that mud exists is as follows: moisture percentage in sewage sludge is high.Non-dewatered sludge water ratio is greater than 90%, and preliminary hydro-extraction moisture percentage in sewage sludge, also up to 80%, causes the problems such as transportation cost is high, stacking area is large, pressing waste landfill yard storage capacity, blocking percolate pipe; Sludge is placed on and outdoorly gives out foul smell and peculiar smell, and Exposure to Sunlight wind blows, and contaminant particle can cause topsoil; Not only cause visual pollution, and provide place etc. for growing of other harmful organisms.China's urban wastewater treatment firm produces dewatered sludge about 1,800,000 t/, estimates, in the coming five years, will produce dewatered sludge 5,400,000 t every year.Therefore, how to fully utilize municipal sludge in recent years and obtain the very large attention of country.Along with the fast development of China's capital construction, the demand of building brick is also increasing, and therefore, the mud produced by municipal wastewater treatment plant is one of effect approach of comprehensive utilization of mud for the manufacture of brick.
For a long time, the vitrified brick that China extensively adopts take still clay as main raw material, and this not only destroys arable land, and this vitrified brick also exists the deficiencies such as production power consumption is high, high insulating efficiency is poor, brick body heavy, production efficiency is low.In the last few years, shale, coal gangue, flyash, red mud, mud etc. had become the raw material preparing vitrified brick, but the plasticity-of these raw materials is difficult to the requirement meeting base, so usually still need to add a certain amount of clay when utilizing it to manufacture vitrified brick.And generally all also there is the problems such as intensity is lower, density is higher, heat insulation effect is poor, effect of heat insulation is poor in existing vitrified brick.Therefore, research and utilization solid waste replaces the resource raw material such as clay to prepare high performance sintered brick being very important.
Summary of the invention
The object of the invention is cannot to be fully used and vitrified brick Problems existing for existing sludged waste material, provide a kind of utilize municipal sludge to make heat-preserving sintered brick and production technique.The present invention not only achieves the recycle of municipal sludge solid waste, reduce problem of environmental pollution and the use reducing clay resource, the vitrified brick of preparation has the advantages such as intensity is high, water-intake rate is low, insulation, good heat-insulation effect, raw material sources are extensive, cost is low, preparation technology is simple.
In order to realize above object, the technical solution used in the present invention is as follows:
Utilize the heat-preserving sintered brick that municipal sludge is made, comprise the raw material of following weight part:
Mud 100-150 part, rock wool 30-50 part, redispersable latex powder 6-10 part, Gum Rosin 2-4 part and boron trioxide 2-4 part.
Preferably, above-described mud is that sewage work dehydrates through routine the mud obtained after process, and its water content is 50-60%.
Preferably, above-described mineral wool comprises rock wool or glass wool.
Preferably, the particle diameter of above-described redispersable latex powder and boron trioxide is 20-40 order.
Preferably, utilize the heat-preserving sintered brick that municipal sludge is made, comprise the raw material of following weight part: 120 parts, mud, rock wool 40 parts, redispersable latex powder 10 parts, Gum Rosin 3 parts and 3 parts.
The production technique of above-described a kind of heat-preserving sintered brick utilizing municipal sludge to make, comprises the following steps:
S1: take following raw material respectively by weight: rock wool 30-50 part and Gum Rosin 2-4 part, be crushed to 2-3mm respectively by each material, obtain thin raw material;
S2: the thin raw material obtained by step S1 adds stirrer, then add mud 100-150 part, redispersable latex powder 6-10 part and boron trioxide 2-4 part, under rotating speed is 100-150r/min, stirs 15-20min, obtains mixture;
S3: said mixture material is sent into brick press, makes base substrate;
S4: the base substrate obtained by step S3 dries 60-80min at temperature is 60-80 DEG C, obtains dry base substrate;
S5: above-mentioned dry base substrate is sent into kiln, and roasting 2-3h at temperature is 1000-1200 DEG C, after naturally cooling, can obtain heat-preserving sintered brick.
Compared with prior art, beneficial effect of the present invention:
1, the present invention makes full use of the mud production vitrified brick that sewage work produces, comprehensive utilization for mud provides effective approach, reduce the use of problem of environmental pollution and reduction clay resource simultaneously, there is good social benefit, ecological benefits and economic benefit.
The Gum Rosin added in the formula of 2, vitrified brick of the present invention, has good cohesiveness, can improve the plasticity of mud, and then improves the ratio of briquetting of blank and improve the intensity of vitrified brick, solves the problem that sludge hot plasticity is low, difficult forming, intensity are low; Gum Rosin also has good water resistance, can reduce the water-intake rate of vitrified brick.
The redispersable latex powder added in the formula of 3, vitrified brick of the present invention, can improve the cohesiveness of vitrified brick, ratio of briquetting, ultimate compression strength, water-repellancy, plasticity-, wear resisting property etc.
The boron trioxide added in the formula of 4, vitrified brick of the present invention, can be used as good sintering agent, reduces sintering temperature, diffusion and sintering velocity is increased, and then reduces energy consumption and enhance productivity.
5, contain mineral wool in the present invention's formula, make vitrified brick have good insulation, heat insulation, soundproof effect, the density of vitrified brick can also be reduced simultaneously.
6, the present invention adopts mud, mineral wool, redispersable latex powder, Gum Rosin and boron trioxide to be raw material, formula rationally, check according to national standard: ultimate compression strength is 30-38MPa, water-intake rate is 8-10%, density is 1250-1290kg/m by the vitrified brick made
3be 0.086-0.094W/ (mk) with thermal conductivity, its product performance are excellent, and every quality index is better than national standard.
7, vitrified brick of the present invention has that intensity is high, water-intake rate is low, density is lower, insulation, good heat-insulation effect, raw material sources are extensive, cost is low, preparation technology is simple, consume energy the advantage such as low, has good market outlook.
Embodiment
Below in conjunction with specific embodiment, the present invention is further described, but scope is not limited to following examples.
Mud described in following examples is that sewage work dehydrates through routine the mud obtained after process, and its water content is 50-60%; Commercially, its granularity is all less than 1mm for described redispersable latex powder and boron trioxide, therefore does not need to pulverize in production vitrified brick process again; Described mineral wool and Gum Rosin also all have market to buy, but due to granularity comparatively large, then also need in production process to be crushed to 2-3mm.
embodiment 1
Utilize the heat-preserving sintered brick that municipal sludge is made, comprise the raw material of following weight part: 100 parts, mud, rock wool 40 parts, redispersable latex powder 8 parts, Gum Rosin 2 parts and boron trioxide 2 parts.
The production technique of vitrified brick, comprises the following steps:
S1: take following raw material respectively by weight: rock wool 40 parts and Gum Rosin 2 parts, be crushed to 2mm respectively by each material, obtain thin raw material;
S2: the thin raw material obtained by step S1 adds stirrer, then add 100 parts, mud, redispersable latex powder 8 parts and boron trioxide 2 parts, under rotating speed is 100r/min, stirs 20min, obtains mixture;
S3: said mixture material is sent into brick press, makes base substrate;
S4: the base substrate obtained by step S3 dries 60min at temperature is 70 DEG C, obtains dry base substrate;
S5: above-mentioned dry base substrate is sent into kiln, and roasting 3h at temperature is 1000 DEG C, after naturally cooling, can obtain heat-preserving sintered brick.
embodiment 2
Utilize the heat-preserving sintered brick that municipal sludge is made, comprise the raw material of following weight part: 120 parts, mud, glass wool 30 parts, redispersable latex powder 6 parts, Gum Rosin 3 parts and boron trioxide 3 parts.
The production technique of vitrified brick, comprises the following steps:
S1: take following raw material respectively by weight: glass wool 30 parts and Gum Rosin 3 parts, be crushed to 3mm respectively by each material, obtain thin raw material;
S2: the thin raw material obtained by step S1 adds stirrer, then add 120 parts, mud, redispersable latex powder 6 parts and boron trioxide 3 parts, under rotating speed is 120r/min, stirs 20min, obtains mixture;
S3: said mixture material is sent into brick press, makes base substrate;
S4: the base substrate obtained by step S3 dries 80min at temperature is 60 DEG C, obtains dry base substrate;
S5: above-mentioned dry base substrate is sent into kiln, and roasting 2.5h at temperature is 1100 DEG C, after naturally cooling, can obtain heat-preserving sintered brick.
embodiment 3
Utilize the heat-preserving sintered brick that municipal sludge is made, comprise the raw material of following weight part: 120 parts, mud, rock wool 40 parts, redispersable latex powder 10 parts, Gum Rosin 3 parts and boron trioxide 3 parts.
The production technique of vitrified brick, comprises the following steps:
S1: take following raw material respectively by weight: rock wool 40 parts and Gum Rosin 3 parts, be crushed to 2mm respectively by each material, obtain thin raw material;
S2: the thin raw material obtained by step S1 adds stirrer, then add 120 parts, mud, redispersable latex powder 10 parts and boron trioxide 3 parts, under rotating speed is 150r/min, stirs 15min, obtains mixture;
S3: said mixture material is sent into brick press, makes base substrate;
S4: the base substrate obtained by step S3 dries 60min at temperature is 80 DEG C, obtains dry base substrate;
S5: above-mentioned dry base substrate is sent into kiln, and roasting 2.5h at temperature is 1100 DEG C, after naturally cooling, can obtain heat-preserving sintered brick.
embodiment 4
Utilize the heat-preserving sintered brick that municipal sludge is made, comprise the raw material of following weight part: 150 parts, mud, glass wool 50 parts, redispersable latex powder 8 parts, Gum Rosin 4 parts and boron trioxide 4 parts.
The production technique of vitrified brick, comprises the following steps:
S1: take following raw material respectively by weight: glass wool 50 parts and Gum Rosin 4 parts, be crushed to 2mm respectively by each material, obtain thin raw material;
S2: the thin raw material obtained by step S1 adds stirrer, then add 150 parts, mud, redispersable latex powder 8 parts and boron trioxide 4 parts, under rotating speed is 150r/min, stirs 20min, obtains mixture;
S3: said mixture material is sent into brick press, makes base substrate;
S4: the base substrate obtained by step S3 dries 80min at temperature is 70 DEG C, obtains dry base substrate;
S5: above-mentioned dry base substrate is sent into kiln, and roasting 2h at temperature is 1200 DEG C, after naturally cooling, can obtain heat-preserving sintered brick.
The heat-preserving sintered brick that the embodiment of the present invention prepares, through detecting, its product performance are as shown in table 1.
The product performance of the vitrified brick that table 1. embodiment of the present invention obtains
| Ultimate compression strength (MPa) | Water-intake rate (%) | Density (kg/m 3) | Thermal conductivity (W/ (mk) | |
| Embodiment 1 | 32.29 | 9.24 | 1263 | 0.092 |
| Embodiment 2 | 30.67 | 9.97 | 1290 | 0.094 |
| Embodiment 3 | 34.58 | 8.25 | 1252 | 0.087 |
| Embodiment 4 | 38.16 | 8.81 | 1282 | 0.086 |
Can find out from above-mentioned detected result, vitrified brick of the present invention also has good resistance to compression, insulation, heat insulation, water resistance, and all technical is all better than national standard, has good market outlook.
Claims (5)
1. the heat-preserving sintered brick utilizing municipal sludge to make, is characterized in that, comprises the raw material of following weight part:
Mud 100-150 part, mineral wool 30-50 part, redispersable latex powder 6-10 part, Gum Rosin 2-4 part and boron trioxide 2-4 part.
2. the heat-preserving sintered brick utilizing municipal sludge to make according to claim 1, is characterized in that: described mud is the mud that sewage work obtains after dehydrating process, and its water content is 50-60%.
3. the heat-preserving sintered brick utilizing municipal sludge to make according to claim 1, is characterized in that: described mineral wool comprises rock wool or glass wool.
4. the heat-preserving sintered brick utilizing municipal sludge to make according to any one of claim 1-3, is characterized in that: the raw material comprising following weight part:
120 parts, mud, rock wool 40 parts, redispersable latex powder 10 parts, Gum Rosin 3 parts and boron trioxide 3 parts.
5. the production technique of a kind of heat-preserving sintered brick utilizing municipal sludge to make as claimed in claim 1, is characterized in that, comprise the following steps:
S1: take following raw material respectively by weight: rock wool 30-50 part and Gum Rosin 2-4 part, be crushed to 2-3mm respectively by each material, obtain thin raw material;
S2: the thin raw material obtained by step S1 adds stirrer, then add mud 100-150 part, redispersable latex powder 6-10 part and boron trioxide 2-4 part, under rotating speed is 100-150r/min, stirs 15-20min, obtains mixture;
S3: said mixture material is sent into brick press, makes base substrate;
S4: the base substrate obtained by step S3 dries 60-80min at temperature is 60-80 DEG C, obtains dry base substrate;
S5: above-mentioned dry base substrate is sent into kiln, and roasting 2-3h at temperature is 1000-1200 DEG C, after naturally cooling, can obtain heat-preserving sintered brick.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510773692.8A CN105272156B (en) | 2015-11-13 | 2015-11-13 | Heat-preserving sintered brick and its production technology that a kind of utilization municipal sludge is made |
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| CN201510773692.8A CN105272156B (en) | 2015-11-13 | 2015-11-13 | Heat-preserving sintered brick and its production technology that a kind of utilization municipal sludge is made |
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| CN105272156A true CN105272156A (en) | 2016-01-27 |
| CN105272156B CN105272156B (en) | 2017-11-03 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107698244A (en) * | 2017-09-30 | 2018-02-16 | 望江县中山新型建材有限公司 | A kind of method that heat-preserving sintered brick is prepared using waste mud |
| CN109721334A (en) * | 2019-02-27 | 2019-05-07 | 北京科技大学 | A method of foamed ceramics is prepared using inorganic building waste |
| CN111943646A (en) * | 2020-08-13 | 2020-11-17 | 海盐达贝尔新型建材有限公司 | Sewage sludge sintering permeable pavement brick processing production line and production process |
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| DE102005038032A1 (en) * | 2004-08-09 | 2006-02-23 | Deutsche Rockwool Mineralwoll Gmbh + Co Ohg | Process for producing a mineral melt and shaped stone |
| CN101219887A (en) * | 2008-01-30 | 2008-07-16 | 李华兵 | City sewage sludge brick and process for producing city sewage sludge brick |
| CN102051943A (en) * | 2009-11-09 | 2011-05-11 | 广东绿由环保科技股份有限公司 | Sintered light environmental-friendly brick produced by using municipal sludge and manufacture method thereof |
| CN104119031A (en) * | 2014-06-27 | 2014-10-29 | 合肥日新高温技术有限公司 | An energy-saving thermally insulating brick |
| CN104860586A (en) * | 2015-04-30 | 2015-08-26 | 广西富林景观建设有限公司 | Stone pavement anti-efflorescence method |
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2015
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005038032A1 (en) * | 2004-08-09 | 2006-02-23 | Deutsche Rockwool Mineralwoll Gmbh + Co Ohg | Process for producing a mineral melt and shaped stone |
| CN101219887A (en) * | 2008-01-30 | 2008-07-16 | 李华兵 | City sewage sludge brick and process for producing city sewage sludge brick |
| CN102051943A (en) * | 2009-11-09 | 2011-05-11 | 广东绿由环保科技股份有限公司 | Sintered light environmental-friendly brick produced by using municipal sludge and manufacture method thereof |
| CN104119031A (en) * | 2014-06-27 | 2014-10-29 | 合肥日新高温技术有限公司 | An energy-saving thermally insulating brick |
| CN104860586A (en) * | 2015-04-30 | 2015-08-26 | 广西富林景观建设有限公司 | Stone pavement anti-efflorescence method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107698244A (en) * | 2017-09-30 | 2018-02-16 | 望江县中山新型建材有限公司 | A kind of method that heat-preserving sintered brick is prepared using waste mud |
| CN109721334A (en) * | 2019-02-27 | 2019-05-07 | 北京科技大学 | A method of foamed ceramics is prepared using inorganic building waste |
| CN111943646A (en) * | 2020-08-13 | 2020-11-17 | 海盐达贝尔新型建材有限公司 | Sewage sludge sintering permeable pavement brick processing production line and production process |
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Address after: 530022 Nanning, the Guangxi Zhuang Autonomous Region, Qingxiu District, South Lake two Li 6 Patentee after: Guangxi Academy of Building Materials Scientific Research and Design Co., Ltd. Address before: No.6 Nanerli Road, Xinghu Road, Nanning City, Nanning City, Guangxi Zhuang Autonomous Region, 530022 Patentee before: Building Material Science Research & Design Academy, Guangxi Zhuang Nationality |
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