CN106396635A - Sludge sintered bricks, and preparation method thereof - Google Patents
Sludge sintered bricks, and preparation method thereof Download PDFInfo
- Publication number
- CN106396635A CN106396635A CN201610819268.7A CN201610819268A CN106396635A CN 106396635 A CN106396635 A CN 106396635A CN 201610819268 A CN201610819268 A CN 201610819268A CN 106396635 A CN106396635 A CN 106396635A
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- CN
- China
- Prior art keywords
- mud
- sludge
- slag
- manganese
- brick
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
- C04B33/132—Waste materials; Refuse; Residues
- C04B33/138—Waste materials; Refuse; Residues from metallurgical processes, e.g. slag, furnace dust, galvanic waste
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
- C04B33/132—Waste materials; Refuse; Residues
- C04B33/1321—Waste slurries, e.g. harbour sludge, industrial muds
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
- C04B33/132—Waste materials; Refuse; Residues
- C04B33/1328—Waste materials; Refuse; Residues without additional clay
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/74—Physical characteristics
- C04B2235/77—Density
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Dispersion Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Treatment Of Sludge (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a preparation method of sludge sintered bricks. 100% of the sludge sintered bricks is prepared from, by mass, 85 to 95% of sludge, 5 to 15% of electrolytic manganese residue. The preparation method comprises following steps: sludge and electrolytic manganese residue are mixed, and are subjected to pressing moulding; and sintering heat preservation is carried out for 3h at 1140 DEG C, and natural cooling in the furnace is carried out so as to obtain the sludge sintered bricks. The rupture strength of the sludge sintered bricks ranges from 5.4 to 5.9MPa, compressive strength ranges from 26 to 28.6MPa, volume weight ranges from 2170 to 2240kg/m3, and strength performance is capable of satisfying requirements in sintered brick national standard MU25. According to the preparation method, electrolytic manganese residue is added into river sludge, and the maximum adding amount of electrolytic manganese residue is as high as 15%, so that effective utilization of river sludge obtained in dredging and industrial solid waste electrolytic manganese residue is realized, a novel through is provided for resource recycling of river sludge and electrolytic manganese residue, and a novel source of sintered brick raw materials is provided.
Description
Technical field
The invention belongs to trade waste comprehensive utilization and building material technical field are and in particular to a kind of silt sintering brick
And preparation method thereof.
Background technology
With the increase year by year of economic fast development and population, the environmental problem that industrial wastewater and sanitary sewage bring
Increasingly severe, the pollution of city river is also increasing.The pollution situation of water silt is the key factor comprehensively weighing water quality.
Rapidly solid phase is switched to by aqueous phase under the most of effect in physical sedimentation and chemisorbed etc. of heavy metal including water body, be deposited on river
In road mud, may again be discharged when environment changes so that the heavy metal concentration of water body increases, be occurred two
Secondary pollution.Contain as the plurality of heavy metal harmful substance such as Ge, Al in mud, except this also contain the solid particles such as plant and animal residues and
Its floccule condensing, leads to water body to black, smelly.
Electrolytic manganese metal slag is to add sulfuric acid solution to produce during producing electrolytic manganese metal in manganese carbonate breeze
Filter acid sludge, wherein contain a large amount of harmful substance such as heavy metal.Electrolytic manganese as a kind of important metallurgy, chemical raw material, closely
In the past few years, with the fast development of China's electrolytic manganese industry, bring to us and while huge interests, also bring substantial amounts of manganese
Slag.But current, due to reasons such as economy, technology, China to the process of electrolytic manganese residues generally in a large number outdoor accumulation, fill out
Bury, wet method of building a dam is stored up.
Because mud and manganese slag are piled up for a long time, floor space is big, surrounding enviroment are affected with big, especially pollution of Mn dregs earth's surface
Water, underground water and soil, have had resulted in serious environmental pollution, cause serious danger to the healthy of the people around
Evil.So the pollution problem how effectively handling electrolytic manganese residues and mud well also become current we to manganese slag resource profit
With a great problem with sludge pollution environment.
Content of the invention
In view of this, the present invention be directed to Jin Jiang River river course dredging produced by mud and Tongren City electrolytic manganese residues resource again
A kind of Utilizing question, there is provided silt sintering brick and preparation method thereof.
In order to solve above-mentioned technical problem, the invention discloses a kind of silt sintering brick, by mass percentage by following former
Material composition：Mud 85～95%, manganese slag 5～15%, above constituent mass percentage sum is 100%.
The preparation method of above-mentioned silt sintering brick, specifically implements according to following steps：
Step 1, first-selection pre-processes to mud and manganese slag, shines dry doubling in small, broken bits after removal microlith grain therein, field trash
Process, at 80～90 DEG C, 24～26h is then dried to remove Free water in raw material to constant weight, carries out mistake after ball milling respectively
120 mesh sieves, obtain mud powder or manganese ground-slag；
Step 2, weighs mud powder 85～95%, manganese ground-slag 5～15%, above constituent mass hundred by mass percentage respectively
Dividing than sum is 100%；
Compressing after step 3, the mud powder that weigh step 2 and the mixing of manganese ground-slag, then burn at a temperature of 1140 DEG C
Knot insulation obtained silt sintering brick with stove natural cooling after 3 hours.
Wherein, in step 3, compressing compacting pressure is 15～20MPa, dwell time 60s.
Wherein, the sintering in step 3 with the heating rate of 5 DEG C/min first from 20 DEG C be warming up to 100 DEG C and be incubated 30min,
It is warming up to 500 DEG C again and is incubated 30min, is warming up to 800 DEG C again and is incubated 60min, then heat to 1000 DEG C and be incubated
60min, is finally warming up to 1140 DEG C and is incubated 180min, hereafter obtain silt sintering brick with stove natural cooling.
Compared with prior art, the present invention can obtain including following technique effect：
The present invention, by sintering mud and the mixing of manganese slag into fired brick that building material field is commonly used, disclosure satisfy that burning
The intensity of knot brick uses standard, has reached the fired brick national standard of MU25, in the present invention utilization of mud up to 85% with
On, the utilization highest of manganese slag is also up to 15%, thus a kind of new thinking is provided to the recycling of mud and manganese slag,
Also provide a kind of new sources for the raw material of fired brick simultaneously.
Certainly, the arbitrary product implementing the present invention it is not absolutely required to reach all the above technique effect simultaneously.
Specific embodiment
To describe embodiments of the present invention below in conjunction with embodiment in detail, thereby to the present invention how application technology hand
Section is solving technical problem and to reach realizing process and fully understanding and implement according to this of technology effect.
Sample appearance after the present invention is sintered is in yellowish red color bit brownish, rough surface it is seen that significantly tiny hole,
Tarnish, quality is hard.Due to the organic matter in green compact sample, carbonate, the crystallization water heat up during produced gas
Body escapes, and added trace manganese slag melts at high temperature in addition, therefore with the generation of liquid phase in sample, has filled up hole, shape
Reticulate structure, solidification effect is served to the product of burning till, so that its quality is hard, intensity is larger, meet the country of fired brick
Standard is it is adaptable to building material field.
Embodiment 1：
The method that the present embodiment 1 prepares fired brick using mud, specifically implements according to following steps：
Step 1：First-selection pre-processes to mud and manganese slag, shines dry doubling in small, broken bits after removal microlith grain therein, field trash
Process, be then dried at 80～90 DEG C, cross 120 mesh sieves after carrying out ball milling respectively, obtain mud powder, manganese ground-slag；
Step 2：Weigh mud powder 3.04kg (95%), manganese ground-slag 0.16kg (5%) by mass percentage respectively, this two kinds
Constituent mass percentage sum is 100%, and gross mass sum is 3.2kg；
Step 3：The mud powder that weigh step 2 and the mixing of manganese ground-slag, are then suppressed under 15～20MPa pressure,
Dwell time 60s, being pressed into profile is the standby burning of right angle hexahedron green briquette, its long 240mm, wide 115mm, high 53mm；
Step 4：Will be naturally cold with stove after the green briquette suppressed in step 3 sintered heat insulating 3 hours at a temperature of 1140 DEG C
But obtain silt sintering brick.
Wherein, sintering by the slow heating of 5 DEG C/min speed, interrupted in the way of carry out, be first warming up to 100 DEG C from 20 DEG C
And be incubated 30min, be warming up to 500 DEG C again and be incubated 30min, be warming up to 800 DEG C again and be incubated 60min, then heat to 1000
DEG C and be incubated 60min, be finally warming up to 1140 DEG C and be incubated 180min, hereafter obtain silt sintering brick with stove natural cooling.
After tested, the rupture strength of this silt sintering brick is 5.38MPa, and compression strength is 26.2MPa, and bulk density is
2240kg/m3, strength character reached fired brick national standard MU25 grade, can apply in Building wood as fired brick completely
Material field.
Embodiment 2：
The method that the present embodiment 2 prepares fired brick using mud, specifically implements according to following steps：
Step 1：First-selection pre-processes to mud and manganese slag, shines dry doubling in small, broken bits after removal microlith grain therein, field trash
Process, be then dried at 80～90 DEG C, cross 120 mesh sieves after carrying out ball milling respectively, obtain mud powder or manganese ground-slag；
Step 2：Weigh mud powder 2.88kg (90%), manganese ground-slag 0.32kg (10%) by mass percentage respectively, this two
Planting constituent mass percentage sum is 100%, and gross mass sum is 3.2kg；
Step 3：The mud powder that weigh step 2 and the mixing of manganese ground-slag, are then suppressed under 15～20MPa pressure,
Dwell time 60s, being pressed into profile is the standby burning of right angle hexahedron green briquette, its long 240mm, wide 115mm, high 53mm；
Step 4：Will be naturally cold with stove after the green briquette suppressed in step 3 sintered heat insulating 3 hours at a temperature of 1140 DEG C
But obtain silt sintering brick.
Wherein, sintering by the slow heating of 5 DEG C/min speed, interrupted in the way of carry out, be first warming up to 100 DEG C from 20 DEG C
And be incubated 30min, be warming up to 500 DEG C again and be incubated 30min, be warming up to 800 DEG C again and be incubated 60min, then heat to 1000
DEG C and be incubated 60min, be finally warming up to 1140 DEG C and be incubated 180min, hereafter obtain silt sintering brick with stove natural cooling.
After tested, the rupture strength of this silt sintering brick is 5.91MPa, and compression strength is 28.6MPa, and bulk density is
2190kg/m3, strength character reached fired brick national standard MU25 grade, can apply in Building wood as fired brick completely
Material field.
Embodiment 3：
The method that the present embodiment 3 prepares fired brick using mud, specifically implements according to following steps：
Step 1：First-selection pre-processes to mud and manganese slag, shines dry doubling in small, broken bits after removal microlith grain therein, field trash
Process, be then dried at 80～90 DEG C, cross 120 mesh sieves after carrying out ball milling respectively, obtain mud powder or manganese ground-slag；
Step 2：Weigh mud powder 2.72kg (85%), manganese ground-slag 0.48kg (15%) by mass percentage respectively, this two
Planting constituent mass percentage sum is 100%, and gross mass sum is 3.2kg；
Step 3：The mud powder that weigh step 2 and the mixing of manganese ground-slag, are then suppressed under 15～20MPa pressure,
Dwell time 60s, being pressed into profile is the standby burning of right angle hexahedron green briquette, its long 240mm, wide 115mm, high 53mm；
Step 4：Will be naturally cold with stove after the green briquette suppressed in step 3 sintered heat insulating 3 hours at a temperature of 1140 DEG C
But obtain silt sintering brick.
Wherein, sintering by the slow heating of 5 DEG C/min speed, interrupted in the way of carry out, be first warming up to 100 DEG C from 20 DEG C
And be incubated 30min, be warming up to 500 DEG C again and be incubated 30min, be warming up to 800 DEG C again and be incubated 60min, then heat to 1000
DEG C and be incubated 60min, be finally warming up to 1140 DEG C and be incubated 180min, hereafter obtain silt sintering brick with stove natural cooling.
After tested, the rupture strength of this silt sintering brick is 5.74MPa, and compression strength is 27.5MPa, and bulk density is
2170kg/m3, strength character reached fired brick national standard MU25 grade, can apply in Building wood as fired brick completely
Material field.
Described above illustrate and describes some preferred embodiments of invention, but as previously mentioned it should be understood that inventing not
It is confined to form disclosed herein, be not to be taken as the exclusion to other embodiment, and can be used for various other combinations, modification
And environment, and can be carried out by the technology or knowledge of above-mentioned teaching or association area in invention contemplated scope described herein
Change.And the change that those skilled in the art are carried out and change without departing from the spirit and scope of invention, then all should weighed appended by invention
In the protection domain that profit requires.
Claims (6)
1. a kind of silt sintering brick is it is characterised in that be made up of following raw material by mass percentage：Mud 85～95%, manganese slag 5
～15%, above constituent mass percentage sum is 100%.
2. silt sintering brick as claimed in claim 1 is it is characterised in that composed of the following components by mass percentage：Mud
95%th, manganese slag 5%.
3. silt sintering brick as claimed in claim 1 is it is characterised in that composed of the following components by mass percentage：Mud
90%th, manganese slag 10%.
4. silt sintering brick as claimed in claim 1 is it is characterised in that composed of the following components by mass percentage：Mud
85%th, manganese slag 15%.
5. the preparation method of described silt sintering brick as arbitrary in Claims 1 to 4 is it is characterised in that specifically according to following step
Rapid enforcement：
Step 1, first-selection pre-processes to mud and manganese slag, shines dry doubling process in small, broken bits after removal microlith grain therein, field trash,
Then the Free water in dry 24～26h removal raw material at 80～90 DEG C, to constant weight, crosses 120 mesh sieves after carrying out ball milling respectively,
Obtain mud powder or manganese ground-slag；
Step 2, weighs mud and manganese slag respectively according to the arbitrary described proportioning of Claims 1 to 4；
Compressing under 15～20MPa pressure after step 3, the mud powder that weigh step 2 and the mixing of manganese ground-slag, it is then passed through
Sintering, obtains silt sintering brick.
6. silt sintering brick as claimed in claim 5 preparation method it is characterised in that：Sintering is with the intensification speed of 5 DEG C/min
Take the lead in being warming up to 100 DEG C and being incubated 30min, be warming up to 500 DEG C again and be incubated 30min, be warming up to 800 DEG C again and be incubated from 20 DEG C
60min, then heats to 1000 DEG C and is incubated 60min, is finally warming up to 1140 DEG C and is incubated 180min, hereafter naturally cold with stove
But obtain silt sintering brick.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610819268.7A CN106396635A (en) | 2016-09-14 | 2016-09-14 | Sludge sintered bricks, and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610819268.7A CN106396635A (en) | 2016-09-14 | 2016-09-14 | Sludge sintered bricks, and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106396635A true CN106396635A (en) | 2017-02-15 |
Family
ID=57999201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610819268.7A Pending CN106396635A (en) | 2016-09-14 | 2016-09-14 | Sludge sintered bricks, and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107235707A (en) * | 2017-06-29 | 2017-10-10 | 铜仁学院 | A kind of silt sintering brick and preparation method thereof |
| CN114920518A (en) * | 2022-05-26 | 2022-08-19 | 湘潭大学 | Riverway sludge and electrolytic manganese slag double-doped baking-free brick and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101767978A (en) * | 2010-01-21 | 2010-07-07 | 中南大学 | Manganese slag-solid waste mixed sintering brick making method |
| CN101775868A (en) * | 2010-01-21 | 2010-07-14 | 中南大学 | Method for sintering and curing industrial waste residue |
| CN103396095A (en) * | 2013-07-30 | 2013-11-20 | 江苏宝能建筑材料有限公司 | Lake sludge brick-making technology |
-
2016
- 2016-09-14 CN CN201610819268.7A patent/CN106396635A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101767978A (en) * | 2010-01-21 | 2010-07-07 | 中南大学 | Manganese slag-solid waste mixed sintering brick making method |
| CN101775868A (en) * | 2010-01-21 | 2010-07-14 | 中南大学 | Method for sintering and curing industrial waste residue |
| CN103396095A (en) * | 2013-07-30 | 2013-11-20 | 江苏宝能建筑材料有限公司 | Lake sludge brick-making technology |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107235707A (en) * | 2017-06-29 | 2017-10-10 | 铜仁学院 | A kind of silt sintering brick and preparation method thereof |
| CN114920518A (en) * | 2022-05-26 | 2022-08-19 | 湘潭大学 | Riverway sludge and electrolytic manganese slag double-doped baking-free brick and preparation method thereof |
| CN114920518B (en) * | 2022-05-26 | 2023-07-21 | 湘潭大学 | Riverway sludge and electrolytic manganese slag double-doped baking-free brick and preparation method thereof |
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