CN100509691C - Method for mfg. energy-saving building brick using paper making mud - Google Patents

Method for mfg. energy-saving building brick using paper making mud Download PDF

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Publication number
CN100509691C
CN100509691C CNB2005100505280A CN200510050528A CN100509691C CN 100509691 C CN100509691 C CN 100509691C CN B2005100505280 A CNB2005100505280 A CN B2005100505280A CN 200510050528 A CN200510050528 A CN 200510050528A CN 100509691 C CN100509691 C CN 100509691C
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paper mill
energy
mill sludge
building brick
saving building
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CN1724451A (en
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董晓峰
沈光银
池跃章
蔡小兵
吴子荣
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Zhejiang Zhongyue Environmental Protection New Material Co., Ltd.
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Hangzhou Green Water Environment Protection Co Ltd
ZHEJIANG PROV BUILDING MATERIAL SAI&TECH
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/91Use of waste materials as fillers for mortars or concrete

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  • Treatment Of Sludge (AREA)

Abstract

A technology for making energy-saving brick from paper-making mud includes such steps as proportionally mixing said mud with clay, shaping by brick maker, drying and calcining at 900-1050 deg. C. Its advantages are low energy consumption and high insulating performance of brick.

Description

A kind of method of utilizing paper mill sludge to make energy-saving building brick
Technical field
The invention belongs to building material technical field, be specifically related to the method that a kind of paper mill sludge that utilizes papermaking sewage to handle and produce is made energy-saving building brick.
Background technology
Continuous development along with China's economic construction; the sewage that the paper mill produces is more and more serious to the influence of ecotope; national government department is to the raising day by day of environment protection attention degree in recent years; various places government strengthens the input of building sewage treatment project; in the hope of the improvement condition, realize the target of Sustainable development.Yet in the treating processes of papermaking wastewater, can produce a large amount of mud again, China mainly still is to burn and landfill to the processing of mud at present, adopt burning method to handle that not only one-time investment is huge and running cost is high, and still have the part slag to handle, and, then can take a large amount of stockyards, but also there is the potentially dangerous that underground water is polluted if adopt underground landfill disposal, therefore, how to handle the environmental issue that paper mill sludge has become needs urgent solution.
Because people require more and more higher to the comfort level of inhabitation, Working environment, heating and air conditioner refrigerating zone constantly enlarge, the total amount of building energy consumption improves year by year with the ratio that accounts for the energy consumption total amount, become the maximum industry of power consumption, the building high energy consumption has become one of city disease of the refractory of China, is having a strong impact on Sustainatle Development of Cities in China.In the building of more than 400 hundred million square metres in China, all belong to the high energy consumption building more than 95%, unit surface heating is equivalent to 3 times of the close developed country of weather condition, the hot comfort of China is poorer than them on the contrary, because China's building maintenance structure thermal and insulating performance is poor, heating has wasted with 2/3 of energy.In addition, China is in the peak period of building construction, and prediction also will be built up about 20,000,000,000 square metres house at 15 years of future, can be higher than under the situation of common material in the energy-saving material price, and still having more than 90% in the new building at present is the high energy consumption building.China does not cause electricity consumption of resident to increase sharply owing to do not note building energy conservation, many places, the energy consumption on particular season heating and air-conditioning at present, uses the electrical height anxiety, and power cuts to limit consumption is frequent.Whether the formation of building is energy-conservation, to a great extent, still will see developer's selection implementation status.Guarantee that new from now on building meets energy conservation standard, these had both needed a large amount of fund inputs, more need energy-saving material to obtain market approval more widely.Making smooth advances of building energy conservation also depends on the advanced and mature technology that can bear economically, and the support of the product up-to-standard, that quantity is enough, and this needs technological development and innovation area constantly to make progress.
Application for a patent for invention prospectus CN1408675 discloses a kind of method of utilizing paper mill sludge to prepare vitrified brick, this method comprises that paper mill sludge is handled the back with sterilant to be mixed with clay and cinder, mixture is extruded into the base bar, cuts into adobe, dry back is at 600~700 ℃ of sintering.The paper mill sludge incorporation is low in this manufacture method, and about 10~25%, moisture 40~50%, can not effectively handle mud.In addition, the sintering temperature of this manufacture method only is 600~700 ℃, and the sintering degree is relatively poor, and durability of product is also relatively poor.
Summary of the invention
For overcoming problems of the prior art, the present invention aims to provide a kind of method of utilizing paper mill sludge to make energy-saving building brick, and this invention can be disposed paper mill sludge effectively, and can produce a kind of energy-saving insulating brick of excellent property simultaneously, and production cost is low, and technology is simple.
Described a kind of method of utilizing paper mill sludge to make energy-saving building brick may further comprise the steps:
(1) takes off column weight amount proportion raw material: 20~40 parts of paper mill sludges, 60~80 parts of clayey raw materials;
(2) paper mill sludge and the clayey raw material with weight proportion described in the step (1) is mixed into pug;
(3) with the pug brick press extrusion moulding of gained in the step (2), cut into adobe, after drying, become finished product at 900~1050 ℃ sintering temperatures.
Described a kind of method of utilizing paper mill sludge to make energy-saving building brick, the feedstock optimization weight proportion in the step (1) is: 25~30 parts of paper mill sludges, 70~75 parts of clayey raw materials.
Described a kind of method of utilizing paper mill sludge to make energy-saving building brick is mixed with biaxial rneader and stirring forcing machine in the step (2).
Described a kind of method of utilizing paper mill sludge to make energy-saving building brick, the sintering temperature of step (3) is 975~1025 ℃.
Described a kind of method of utilizing paper mill sludge to make energy-saving building brick adopts natural air drying or carries out drying with tunnel drying oven cut into adobe in step (3) after, can also carry out drying with the cell-type dry kiln.
Describedly a kind ofly utilize the clayey raw material in the method that paper mill sludge makes energy-saving building brick to be clay, shale or purple mud.
The water ratio about 70% of described paper mill sludge, for conventional paper waste handle in by sewage treatment equipment, as pressure filter etc., the mud mud cake of generation.Weight proportion in the present patent application calculates with butt.
Described a kind of method of utilizing paper mill sludge to make energy-saving building brick, this method is used to manufacture light energy saving brick, and furring tile.
This method technology is simple, need not to add other raw material, produces the energy-saving building brick that obtains, ultimate compression strength 〉=5MPa, unit weight≤900kg/m 3, the energy-conservation brick wall body heat transferring COEFFICIENT K≤1.5W/m of 240mm thickness 2K reaches " Xia Redong cryogenic region energy Saving Design of Residential Buildings standard " and goes along with sb. to guard him the exterior wall requirement.Solved the handling problems of paper mill sludge, realized innoxious, dissolving processing entirely, turned waste into wealth, saved clay resource simultaneously, production cost is low, helps the protection of ecotope.And wood fibre is uniform distribution in adobe, forms micropore after high-temperature roasting, thereby reduces the energy-saving building brick density of being produced, and improves heat-insulating property, has reduced the use energy consumption of buildings, further reaches energy-conservation effect.
Embodiment
Now describe specific embodiments of the invention in detail.
Described a kind of method of utilizing paper mill sludge to make energy-saving building brick may further comprise the steps:
(1) takes off column weight amount proportion raw material: 25~30 parts of paper mill sludges, 70~75 parts in shale;
(2) paper mill sludge and the shale with weight proportion described in the step (1) is mixed into pug with biaxial rneader and stirring forcing machine;
(3) with the pug brick press extrusion moulding of gained in the step (2), cut into adobe, then, with described adobe through natural air drying, perhaps carry out drying, perhaps carry out drying, become dry body with the cell-type dry kiln with tunnel drying oven, at last, under 975~1025 ℃ temperature, be fired into finished product with tunnel furnace or annular kiln.
Described a kind of method of utilizing paper mill sludge to make energy-saving building brick, the mud of " paper mill sludge " that is utilized for being produced in the production waste treating processes of paper mill, main component is wood fibre and part papermaking filler, the about 10000KJ/kg of its calorific value, in roasting process, can obtain utilizing to reduce production energy consumption
The described method of utilizing paper mill sludge to make energy-saving building brick is the raw material production energy-saving building brick with paper mill sludge and shale etc., both can curb environmental pollution, and reduces the stockyard and takes up an area of, again can save energy and clay.In 6,000 ten thousand (signature brick)/annual production enterprises, can handle paper mill sludge 250~350 ton per days (in water ratio 70%) at low cost, the product heat-insulating property is good, can satisfy and build the energy saving building requirement, is one of optimal path that solves the paper mill sludge secondary pollution.

Claims (3)

1. method of utilizing paper mill sludge to make energy-saving building brick is characterized in that this method may further comprise the steps:
(1) take off column weight amount proportion raw material: 25~30 parts of paper mill sludges, 70~75 parts of clayey raw materials, described clayey raw material are shale or purple mud;
(2) paper mill sludge and the clayey raw material with weight proportion described in the step (1) is mixed into pug;
(3) with the pug brick press extrusion moulding of gained in the step (2), cut into adobe, after drying, become finished product at 975~1025 ℃ sintering temperatures.
2. a kind of method of utilizing paper mill sludge to make energy-saving building brick as claimed in claim 1 is characterized in that mixing with biaxial rneader and stirring forcing machine in the step (2).
3. a kind of method of utilizing paper mill sludge to make energy-saving building brick as claimed in claim 1 after it is characterized in that cutting into adobe in the step (3), adopts natural air drying, perhaps carries out drying with tunnel like or cell-type dry kiln.
CNB2005100505280A 2005-06-30 2005-06-30 Method for mfg. energy-saving building brick using paper making mud Active CN100509691C (en)

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CN100509691C true CN100509691C (en) 2009-07-08

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Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102329110B (en) * 2011-06-21 2012-12-05 东莞市保源达房地产开发有限公司 Lightweight brick manufactured by utilizing paper mill sludge and manufacturing method thereof
CN102503369A (en) * 2011-10-15 2012-06-20 何家珠 Method for manufacturing brick from papermaking sludge
CN102672801B (en) * 2012-03-23 2014-03-05 福建省卓越鸿昌建材装备股份有限公司 Guide pillar mounting structure of brick molding machine capable of automatically stacking bricks after forming
CN102672804B (en) * 2012-05-28 2014-08-13 李光尚 Integrated control system of tile brick making machine
CN106116670A (en) * 2016-06-17 2016-11-16 福建工程学院 A kind of method utilizing mud and subway shoveling sintering self-insulating brick
CN106316361A (en) * 2016-08-28 2017-01-11 梁乔保 Heat preservation building material
CN109053143A (en) * 2018-09-19 2018-12-21 南京胜仁市政建设有限公司 It is a kind of to use making brick from sludge technique

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1168869A (en) * 1996-06-17 1997-12-31 袁孝友 Brick made from black liquor of paper mill
CN1287984A (en) * 2000-10-27 2001-03-21 翟冠杰 Method for producing fly-ash backed brick by using paper mill waste water to increase fly-ash percentage
CN1299790A (en) * 2000-05-11 2001-06-20 徐千里 Brick-making process utilizing papermaking waste material
CN1408675A (en) * 2001-09-28 2003-04-09 韩晓伟 Sintered brick produced by using paper-making sludge of waste paper and its preparing method
CN1587569A (en) * 2004-10-08 2005-03-02 黄松 Method for preparing full internal combustion light brick

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1168869A (en) * 1996-06-17 1997-12-31 袁孝友 Brick made from black liquor of paper mill
CN1299790A (en) * 2000-05-11 2001-06-20 徐千里 Brick-making process utilizing papermaking waste material
CN1287984A (en) * 2000-10-27 2001-03-21 翟冠杰 Method for producing fly-ash backed brick by using paper mill waste water to increase fly-ash percentage
CN1408675A (en) * 2001-09-28 2003-04-09 韩晓伟 Sintered brick produced by using paper-making sludge of waste paper and its preparing method
CN1587569A (en) * 2004-10-08 2005-03-02 黄松 Method for preparing full internal combustion light brick

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Patentee before: Pinghu Guanglun Novel Building Materials Co., Ltd.