CN105036705A - Sintered brick prepared by utilizing paper mill sludge and preparation method thereof - Google Patents
Sintered brick prepared by utilizing paper mill sludge and preparation method thereof Download PDFInfo
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- CN105036705A CN105036705A CN201510369304.XA CN201510369304A CN105036705A CN 105036705 A CN105036705 A CN 105036705A CN 201510369304 A CN201510369304 A CN 201510369304A CN 105036705 A CN105036705 A CN 105036705A
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- paper mill
- clay
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- coal gangue
- mill sludge
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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 sintered brick prepared by utilizing paper mill sludge and a preparation method thereof. The sintered brick is formed by the following components in part by weight: 7 parts of clay, 2 parts of coal gangue and 1 part of sludge. The preparation method comprises the following steps of (1) crushing and filtering the coal gangue, and feeding into a coal gangue feeder; (2) crushing and filtering the clay, and feeding into a clay feeder; (3) fully mixing the sludge, the processed coal gangue and the processed clay through a distributor according to a fixed proportion to prepare a raw material, and blank forming, drying and sintering the mixed raw material to prepare a finished product. The applicant finally discovered the mixed proportion of 7 to 2 to 1 through a number of research experiments and trial production and continuous compressive strength detection of bricks, so that the compressive strength of the bricks meets the national standard, the product quality is high, some products reach the level of products of the same kind in advanced countries, the market is broadened, and the application surface is gradually enlarged. Not only is the difficult problem of sludge treatment of a paper mill solved, but also the consumption of the clay and the coal gangue caused by traditional sintered bricks is avoided.
Description
Technical field
The present invention relates to the reutilization technology of paper mill sludge, be specifically related to a kind of vitrified brick utilizing paper mill sludge to prepare and preparation method thereof.
Background technology
Along with the development of papermaking industry and the construction of Pollution treatment installation, the mud that paper waste produces after treatment facility process becomes new source of pollution.Mud is except part obtains comprehensive utilization, and all the other are sanitary landfill process, need a large amount of soil of landfill every year, both waste land resources, also can produce secondary pollution.Paper mill sludge belongs to biosolids waste, and it is both containing plant nutrients such as a large amount of cellulose families organic matter and nitrogen, phosphorus, potassium, again containing micro heavy and pathogenic bacteria.According to this characteristic, paper mill sludge can be become Agricultural Fertilizer.Its agricultural methods is divided into: directly use as soil improvement agent after sludge air drying; Use as soil improvement agent after sludge composting; Sludge composting secondary processing becomes compoiste fertilizer to use.Above-mentioned method for sludge treatment needs the various compositions of mud inside to be effectively separated, and cost is higher, is not suitable for all regions and promotes.
The production of common brick and use, in existing more than the 3000 year history of China.Now, in the materials for wall used in construction project, common brick is still occupied an leading position.Although there is many deficiencies in common brick, but due to cheap, technique is simple, design and construction technique is ripe and the reason such as the use inertia of people, common brick, within considerable time from now on, particularly in rural area, remains one of main materials for wall.
Summary of the invention
In order to solve the deficiencies in the prior art, the invention provides a kind of vitrified brick utilizing paper mill sludge to prepare and preparation method thereof.
Technical scheme of the present invention is: a kind of vitrified brick utilizing paper mill sludge to prepare, and described vitrified brick is by weight by 7 parts of clays, and 2 parts of coal gangues and 1 part of mud form.
Further improvement of the present invention comprises:
It is of a size of 240mm × 115mm × 53mm.
Described mud is the mud that paper mill produces after water treatment from the waste water that production system is discharged.
Another object of the present invention is to, a kind of method utilizing paper mill sludge to prepare vitrified brick is provided, comprises the following steps: after 1, coal gangue fragmentation being filtered, send into coal gangue feeding machine; 2, clay feeding machine is sent into after clay being pulverized filtration; 3, mud is fully mixed obtained raw material by fixed proportion with coal gangue after described process and clay by distributor, mixed raw material is carried out base, drying, sintering obtained finished product afterwards.
As the preferred embodiment of the present invention, specifically also comprise:
Described coal gangue feeding machine is box-type feeder, and described clay is pulverized through fine cracking double roller machine.
Described maturing temperature is 900-1100 DEG C.
The ultimate compression strength of described vitrified brick is not less than 33MPa.
Applicant is through a large amount of research experiments and trial production, and constantly detect the ultimate compression strength of brick, finally mix with the ratio of 7:2:1, the ultimate compression strength of brick meets national standard.The existing certain intensity of the present invention, have again heat insulation, sound insulation property preferably, winter, indoor wall there will not be dew condensation phenomenon, and cheap.Quality product progressively improves, and portioned product reaches the level of advanced country's like product, and market is constantly widened, and application surface expands gradually.To not only solve the sludge treatment difficult problem in paper mill, also solve the consumption of conventional sintering brick to clay and coal gangue simultaneously.
Accompanying drawing explanation
Fig. 1 is that the present invention utilizes paper mill sludge to prepare the process flow sheet of vitrified brick.
Embodiment
Below in conjunction with accompanying drawing, the present invention is elaborated.
A kind of vitrified brick utilizing paper mill sludge to prepare of the present invention, described vitrified brick is by weight by 7 parts of clays, and 2 parts of coal gangues and 1 part of mud form.It is of a size of 240mm × 115mm × 53mm.Described mud is the mud that paper mill produces after water treatment from the waste water that production system is discharged.
As shown in Figure 1, another object of the present invention is to, a kind of method utilizing paper mill sludge to prepare vitrified brick is provided, comprises the following steps: after 1, coal gangue fragmentation being filtered, send into coal gangue feeding machine; 2, clay feeding machine is sent into after clay being pulverized filtration; 3, mud is fully mixed obtained raw material by fixed proportion with coal gangue after described process and clay by distributor, mixed raw material is carried out base, drying, sintering obtained finished product afterwards.
Described coal gangue feeding machine is box-type feeder, and described clay is pulverized through fine cracking double roller machine.Described maturing temperature is 900-1100 DEG C.The ultimate compression strength of described vitrified brick is not less than 33MPa.
Proportioning raw materials: clay: coal gangue: mud=70:20:10, mixing must evenly, process of must sieving.Maturing temperature: 900-1100 DEG C
Geomery: common brick is rectangular parallelepiped, and its standard size is 240mm × 115mm × 53mm, add the thickness of building by laying bricks or stones with mortar joint, then 4 pieces of bricks are long, and 8 pieces of bricks are wide, and 16 pieces of thick difference of brick are 1m just, therefore each cubic metre of brick structures need use brick 512 pieces.
Strength grade: the strength grade of common brick divides according to the ultimate compression strength mean value of 10 pieces of bricks, standard value or minimum value, be divided into MU30, MU25, MU20, MU15, MU10 five grades, when assessment intensity grade, if during strength variable coefficient δ≤0.21, adopt mean value---standard value method; If during strength variable coefficient δ >0.21, then adopt mean value---minimum value method.The strength criterion of each grade should meet following table prescribed value.
Its specific requirement is as shown in the table.
Vitrified brick of the present invention: physical dimension: 240mm × 115.1mm × 53.2mm;
Ultimate compression strength: >=33MPa
Lime blowing: bring CaO into if carry secretly in raw material in lime or fuel (flyash, slag), generates the lime that overdoes in high-temperature melting process.Overdo lime water-swelling in brick body, and cause brick volumetric expansion to destroy, this phenomenon is called lime blowing.GB/T5101-1998 specifies, premium grads does not allow to occur that maximal destruction size is greater than the explosion region of 2mm; Acceptable end product does not allow to occur that maximal destruction size is greater than the explosion region of 10mm; The explosion district often organizing brick sample 2 ~ 15mm in salable product must not be greater than 15 places, wherein no more than 7 places, the region of more than 10mm, and must not occur the explosion district being greater than 15mm.Vitrified brick of the present invention: after testing without lime blowing phenomenon.
Scum: refer to that in brick, solubility salt is in the use procedure of brick, separate out one deck bloom in the surface of brick gradually.The white powder thing of these crystallizations not only affects the outward appearance of buildings, and the volumetric expansion of crystallization also can cause the loose of brick top layer, destroys the bonding between brick and screed simultaneously.
GB/T5101-1998 also specifies, premium grads has not allowed scum phenomenon, does not allow to occur serious scum in salable product, and must not be mingled with under-burned brick, crisp brick and spiricle brick.Vitrified brick of the present invention: after testing without scum phenomenon, reaches premium grads grade.
Applicant is through a large amount of research experiments and trial production, and constantly detect the ultimate compression strength of brick, finally mix with the ratio of 7:2:1, the ultimate compression strength of brick meets national standard.The existing certain intensity of the present invention, have again heat insulation, sound insulation property preferably, winter, indoor wall there will not be dew condensation phenomenon, and cheap.Quality product progressively improves, and portioned product reaches the level of advanced country's like product, and market is constantly widened, and application surface expands gradually.To not only solve the sludge treatment difficult problem in paper mill, also solve the consumption of conventional sintering brick to clay and coal gangue simultaneously.
More than show and describe ultimate principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification sheets just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (7)
1. the vitrified brick utilizing paper mill sludge to prepare, is characterized in that, described vitrified brick is by weight by 7 parts of clays, and 2 parts of coal gangues and 1 part of mud form.
2. a kind of vitrified brick utilizing paper mill sludge to prepare according to claim 1, it is characterized in that, it is of a size of 240mm × 115mm × 53mm.
3. a kind of vitrified brick utilizing paper mill sludge to prepare according to claim 1, is characterized in that, described mud is the mud that paper mill produces after water treatment from the waste water that production system is discharged.
4. utilize paper mill sludge to prepare a method for vitrified brick, it is characterized in that, comprise the following steps: after 1, coal gangue fragmentation being filtered, send into coal gangue feeding machine; 2, clay feeding machine is sent into after clay being pulverized filtration; 3, mud is fully mixed obtained raw material by fixed proportion with coal gangue after described process and clay by distributor, mixed raw material is carried out base, drying, sintering obtained finished product afterwards.
5. a kind of method utilizing paper mill sludge to prepare vitrified brick according to claim 4, it is characterized in that, described coal gangue feeding machine is box-type feeder, and described clay is pulverized through fine cracking double roller machine.
6. a kind of method utilizing paper mill sludge to prepare vitrified brick according to claim 4, it is characterized in that, described maturing temperature is 900-1100 DEG C.
7. a kind of method utilizing paper mill sludge to prepare vitrified brick according to claim 4, it is characterized in that, the ultimate compression strength of described vitrified brick is not less than 33MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510369304.XA CN105036705A (en) | 2015-06-29 | 2015-06-29 | Sintered brick prepared by utilizing paper mill sludge and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510369304.XA CN105036705A (en) | 2015-06-29 | 2015-06-29 | Sintered brick prepared by utilizing paper mill sludge and preparation method thereof |
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| CN105036705A true CN105036705A (en) | 2015-11-11 |
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| CN201510369304.XA Pending CN105036705A (en) | 2015-06-29 | 2015-06-29 | Sintered brick prepared by utilizing paper mill sludge and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107285732A (en) * | 2016-04-05 | 2017-10-24 | 李心海 | Making brick from sludge technology |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN101314541A (en) * | 2007-06-01 | 2008-12-03 | 赵德智 | Red brick burning process |
| CN101337793A (en) * | 2008-01-17 | 2009-01-07 | 蒋伟 | Method for producing energy-saving bricks by comprehensive utilization of paper making sludge and fly ash |
| CN101941808A (en) * | 2010-08-20 | 2011-01-12 | 李国典 | Method of using black mud discharged by paper mill for producing shale baked bricks |
| CN103467068A (en) * | 2013-08-29 | 2013-12-25 | 郑州鹏泰高新建材制品有限公司 | Production method of gangue shale sintered brick |
-
2015
- 2015-06-29 CN CN201510369304.XA patent/CN105036705A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN101314541A (en) * | 2007-06-01 | 2008-12-03 | 赵德智 | Red brick burning process |
| CN101337793A (en) * | 2008-01-17 | 2009-01-07 | 蒋伟 | Method for producing energy-saving bricks by comprehensive utilization of paper making sludge and fly ash |
| CN101941808A (en) * | 2010-08-20 | 2011-01-12 | 李国典 | Method of using black mud discharged by paper mill for producing shale baked bricks |
| CN103467068A (en) * | 2013-08-29 | 2013-12-25 | 郑州鹏泰高新建材制品有限公司 | Production method of gangue shale sintered brick |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107285732A (en) * | 2016-04-05 | 2017-10-24 | 李心海 | Making brick from sludge technology |
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Application publication date: 20151111 |