CN108147664A - A kind of method that glass water-permeable brick is prepared using tailing - Google Patents
A kind of method that glass water-permeable brick is prepared using tailing Download PDFInfo
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- CN108147664A CN108147664A CN201711483936.4A CN201711483936A CN108147664A CN 108147664 A CN108147664 A CN 108147664A CN 201711483936 A CN201711483936 A CN 201711483936A CN 108147664 A CN108147664 A CN 108147664A
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- tailing
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- permeable brick
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C1/00—Ingredients generally applicable to manufacture of glasses, glazes, or vitreous enamels
- C03C1/002—Use of waste materials, e.g. slags
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B19/00—Other methods of shaping glass
- C03B19/06—Other methods of shaping glass by sintering, e.g. by cold isostatic pressing of powders and subsequent sintering, by hot pressing of powders, by sintering slurries or dispersions not undergoing a liquid phase reaction
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- Chemical Kinetics & Catalysis (AREA)
- Geochemistry & Mineralogy (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Dispersion Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Ceramic Products (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Glass Compositions (AREA)
Abstract
The present invention provides a kind of method that glass water-permeable brick is prepared using tailing, and step is as follows：Component meter by weight, weighs golden 7.5~8.5 parts of tailing, 0.1~0.2 part of quartz sand, 0.6~1.6 part of lime, 0.2~0.4 part of aluminium oxide, and 0.35~0.55 part of boric acid is put into heating furnace heats after mixing, keeps the temperature, obtains mixed melting object；The mixed melting object is quickly poured into water, obtains glass blocks；The glass blocks is crushed, obtains glass particle；Then fireproof die is placed in heating furnace and is heated to certain temperature according to certain heating rate on fireproof die by the glass particle is evenly laid out, kept the temperature, then furnace cooling；Fireproof die is sloughed, obtains glass water-permeable brick.The present invention prepares glass water-permeable brick by primary raw material of tailing, and tailing dosage accounts for more than 70% raw material gross mass, effectively increases the cyclic utilization rate of tailing；Preparation method provided by the invention is simple for process, at low cost, has extensive industrial application value.
Description
Technical field
The present invention relates to resource of tailings comprehensive utilization and water-permeable brick technical fields more particularly to a kind of utilization tailing to prepare glass
The method of glass water-permeable brick.
Background technology
Exploitation of mineral resources can generate a large amount of tailings, and tailing accumulating amount is excessive not only to pollute environment, land occupation resource, together
When there is also very big security risks.It is an effective way for solving the problems, such as tailing accumulation using materials such as tailing production water-permeable bricks
Diameter.At present water-permeable brick be mostly will the raw materials such as aggregate, binding agent mix compacting after under certain condition maintenance or high temperature sintering
It forms.These water-permeable bricks have obtained relatively broad application, play a significant role in urban construction.But from tailings comprehensive profit
From the point of view of angle, the prior art is generally relatively low to the utilization rate of tailing.
Chinese patent CN103204698B discloses a kind of method that environment protection type water permeable brick is prepared using iron tailings, with iron tail
Ore deposit, waste broken glass bits, feldspar, clay, silicon carbide is raw material, through broken, ball milling, dispensing, wet mixing, drying, molding, firing
Water-permeable brick is made, tailing dosage is 30%-40%, and water-permeable brick makes brick body be mutually communicated in sintering process by foaming agent
Hole so that generate permeable effect, and the hole of this perforation is more, and the compression strength of brick body will reduce so that permeability rate
There are contradictions with compression strength.
Chinese patent CN105777065A discloses a kind of preparation method of gold tailings water-permeable brick, based on gold tailings
Want raw material, pre-processed through tailing, oil drilling waste liquid dipping, the aging, granulating and forming of raw material mixing, sintering, be made
Water brick, raw materials used other than gold tailings, also 20 kinds of materials such as gangue, clay, gold tailings proportion are 40%-
60%, pretreatment of raw material process is more, and proportioning is relatively complicated, and Mine Tailings Utilization is relatively low.
In addition to this, water-permeable brick made from the prior art also there are brick body rough surface, appearance is dull, compression strength is low and
The shortcomings that wearing no resistance.
Invention content
In view of this, the present invention provides a kind of profits that can be effectively improved Mine Tailings Utilization, improve water-permeable brick mechanical property
The method that glass water-permeable brick is prepared with tailing.
The present invention provides a kind of method that glass water-permeable brick is prepared using tailing, includes the following steps：
S101, by weight component meter weigh golden 7.5~8.5 parts of tailing, 0.1~0.2 part of quartz sand, lime 0.6~1.6
Part, 0.2~0.4 part of aluminium oxide, 0.35~0.55 part of boric acid is put into heating furnace heats after mixing, keeps the temperature, is mixed
Fusant；
The mixed melting object is quickly poured into water, obtains glass blocks by S102；
S103 crushes the glass blocks, obtains glass particle；
S104, the glass particle is evenly laid out on fireproof die, then by fireproof die be placed in heating furnace by
Certain temperature is heated to according to certain heating rate, is kept the temperature, then furnace cooling；
S105 sloughs fireproof die, obtains glass water-permeable brick.
Further, in step S101, component meter by weight weighs golden 7.5 parts of tailing, 0.2 part of quartz sand, lime 1.35
Part, 0.4 part of aluminium oxide, 0.55 part of boric acid.
Further, in step S101, component meter by weight weighs golden 8.5 parts of tailing, 0.1 part of quartz sand, lime 0.85
Part, 0.2 part of aluminium oxide, 0.35 part of boric acid.
Further, in step S101, component meter by weight weighs golden 8 parts of tailing, 0.15 part of quartz sand, lime 1.1
Part, 0.3 part of aluminium oxide, 0.45 part of boric acid.
Further, in step S101, the gold tailing, quartz sand, lime, aluminium oxide and boric acid grain size be not more than
Heating furnace is warming up to 1200 DEG C from 25 DEG C by 0.074mm with the rate of 5~6 DEG C/min, and heating furnace is kept the temperature after being warming up to 1200 DEG C
2h。
Further, when the grain size of the glass particle is 0.7~2.5mm or 2.5~15mm, fireproof die is placed in and is added
Heating furnace is warming up to 720~910 DEG C from 25 DEG C with the rate of 3 DEG C/min in hot stove, the temperature of heating furnace reaches maximum temperature
After keep the temperature 1h.
Further, when the grain size of the glass particle is 0.08~0.63mm, fireproof die is placed in heating furnace, with
Heating furnace is warming up to 680~870 DEG C from 25 DEG C by the rate of 3 DEG C/min, and the temperature of heating furnace keeps the temperature 1h after reaching maximum temperature.
Further, the compression strength of glass water-permeable brick obtained is 30~40MPa, and coefficient of permeability is 1~8mm/s.
Compared with prior art, the present invention prepares glass water-permeable brick by primary raw material of tailing, and it is total that tailing dosage accounts for raw material
More than 70% quality effectively increases the cyclic utilization rate of tailing；The glass obtained using preparation method provided by the invention
Water-permeable brick surface is mellow and full graininess, has glassy lustre, and appearance is beautiful, good water permeability, anti-skid wearable, compression strength for 30~
40MPa, coefficient of permeability are 1~8mm/s；Preparation method provided by the invention is simple for process, at low cost, has extensive industry should
With value.
Description of the drawings
Fig. 1 is a kind of flow diagram for the method that glass water-permeable brick is prepared using tailing of the present invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention
Formula is further described.
Please refer to Fig.1, the embodiment provides a kind of method that glass water-permeable brick is prepared using tailing, including with
Lower step：
Step S101, by weight component meter, weigh golden 7.5~8.5 parts of tailing, 0.1~0.2 part of quartz sand, and lime 0.6~
1.6 parts, 0.2~0.4 part of aluminium oxide, 0.35~0.55 part of boric acid is put into heating furnace heats after mixing, with 5~6 DEG C/
The rate of min makes heating furnace be warming up to 1200 DEG C from 25 DEG C, and the temperature of heating furnace keeps the temperature 2h after reaching 1200 DEG C, and it is molten to obtain mixing
Melt object, mixed melting object is the bath of glass of liquid, in raw material, golden tailing, quartz sand, lime, aluminium oxide and boric acid grain size
No more than 0.074mm, silica 85.98wt%, magnesia 0.64wt%, calcium oxide 1.7wt%, oxidation are contained in golden tailing
Aluminium 3.06wt%, iron oxide 5.34wt% and other impurities.
Mixed melting object is quickly poured into water by step S102, and under the influence of water temperature, the temperature of mixed melting object is drastically
Decline, form glass blocks.
Step S103, glass blocks is crushed, and obtains glass particle.
Step S104, glass particle is evenly laid out on fireproof die, then by fireproof die be placed in heating furnace by
Certain temperature is heated to according to certain heating rate, is kept the temperature, then furnace cooling；When glass particle grain size for 0.7~2.5mm or
During 2.5~15mm, fireproof die is placed in heating furnace, heating furnace is warming up to 720~910 from 25 DEG C with the rate of 3 DEG C/min
DEG C, the temperature of heating furnace keeps the temperature 1h after reaching maximum temperature；When the grain size of glass particle is 0.08~0.63mm, by fire resisting mould
Tool is placed in heating furnace, heating furnace is warming up to 680~870 DEG C from 25 DEG C with the rate of 3 DEG C/min, the temperature of heating furnace reaches
1h is kept the temperature after maximum temperature.
Step S105, sloughs fireproof die, obtains the glass that compression strength is 30~40MPa, coefficient of permeability is 1~8mm/s
Glass water-permeable brick.
Several embodiments of the preparation method of the glass water-permeable brick of the present invention are given below, in conjunction with the embodiments to above-mentioned preparation
Method is illustrated.
Embodiment 1：
Component meter by weight weighs golden 7.5 parts of tailing, 0.2 part of quartz sand, 1.35 parts of lime, 0.4 part of aluminium oxide, boric acid
It 0.55 part, is put into heating furnace heats after mixing, heating furnace is warming up to 1200 DEG C from 25 DEG C with the rate of 5 DEG C/min,
And 2h is kept the temperature under the conditions of 1200 DEG C, obtain mixed melting object；Mixed melting object is quickly poured into water, obtains glass blocks；It will
Glass blocks crushes, and obtains glass particle；The glass particle that grain size is 0.7~2.5mm is filtered out, it is evenly laid out in fireproof die
On, then fireproof die is placed in heating furnace and heating furnace is heated up from 25 DEG C with the rate of 3 DEG C/min by laying depth 30mm
To 750 DEG C, and 1h is kept the temperature under the conditions of 750 DEG C, then furnace cooling；Fireproof die is removed, is cut, it is permeable to obtain glass
Brick.
There is glassy lustre, anti-skid wearable, thickness 26mm using the glass water-permeable brick that embodiment 1 obtains, color is shallow
Brown, surface are mellow and full graininess, and the compression strength that glass water-permeable brick is measured through experiment is 38.5MPa, and coefficient of permeability is
3mm/s。
Embodiment 2：
Component meter by weight weighs golden 8 parts of tailing, 0.15 part of quartz sand, 1.1 parts of lime, 0.3 part of aluminium oxide, boric acid
It 0.45 part, is put into heating furnace heats after mixing, heating furnace is warming up to 1200 DEG C from 25 DEG C with the rate of 5 DEG C/min,
And 2h is kept the temperature under the conditions of 1200 DEG C, obtain mixed melting object；Mixed melting object is quickly poured into water, obtains glass blocks；It will
Glass blocks crushes, and obtains glass particle；The glass particle that grain size is 2.5~15mm is filtered out, it is evenly laid out on fireproof die,
Laying depth is 30mm, and then fireproof die is placed in heating furnace and is warming up to heating furnace from 25 DEG C with the rate of 3 DEG C/min
800 DEG C, and 1h is kept the temperature under the conditions of 800 DEG C, then furnace cooling；Fireproof die is removed, is cut, it is permeable to obtain glass
Brick.
There is glassy lustre, anti-skid wearable, thickness 28mm using the glass water-permeable brick that embodiment 2 obtains, color is deep
Brown, surface are mellow and full graininess, and the compression strength that glass water-permeable brick is measured through experiment is 35MPa, coefficient of permeability 6mm/
s。
Embodiment 3：
Component meter by weight weighs golden 8.5 parts of tailing, 0.1 part of quartz sand, 0.85 part of lime, 0.2 part of aluminium oxide, boric acid
It 0.35 part, is put into heating furnace heats after mixing, heating furnace is warming up to 1200 DEG C from 25 DEG C with the rate of 6 DEG C/min,
And 2h is kept the temperature under the conditions of 1200 DEG C, obtain mixed melting object；Mixed melting object is quickly poured into water, obtains glass blocks；It will
Glass blocks crushes, and obtains glass particle；The glass particle that grain size is 0.08~0.63mm is filtered out, it is evenly laid out in fireproof die
On, then fireproof die is placed in heating furnace and heating furnace is heated up from 25 DEG C with the rate of 3 DEG C/min by laying depth 30mm
To 720 DEG C, and 1h is kept the temperature under the conditions of 720 DEG C, then furnace cooling；Fireproof die is removed, is cut, it is permeable to obtain glass
Brick.
There is glassy lustre, anti-skid wearable, thickness 24mm using the glass water-permeable brick that embodiment 3 obtains, color is ash
Color, surface are mellow and full graininess, and the compression strength that glass water-permeable brick is measured through experiment is 40MPa, coefficient of permeability 5mm/s.
Compared with prior art, the present invention prepares glass water-permeable brick by primary raw material of tailing, and it is total that tailing dosage accounts for raw material
More than 70% quality effectively increases the cyclic utilization rate of tailing；The glass obtained using preparation method provided by the invention
Water-permeable brick surface is mellow and full graininess, has glassy lustre, and appearance is beautiful, good water permeability, anti-skid wearable, compression strength for 30~
40MPa, coefficient of permeability are 1~8mm/s；Preparation method provided by the invention is simple for process, at low cost, has extensive industry should
With value.
In the absence of conflict, the feature in embodiment and embodiment herein-above set forth can be combined with each other.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.
Claims (8)
- A kind of 1. method that glass water-permeable brick is prepared using tailing, which is characterized in that include the following steps：S101, by weight component meter weigh golden 7.5~8.5 parts of tailing, 0.1~0.2 part of quartz sand, 0.6~1.6 part of lime, oxygen Change 0.2~0.4 part of aluminium, 0.35~0.55 part of boric acid is put into heating furnace heats after mixing, keeps the temperature, obtains mixed melting Object；The mixed melting object is quickly poured into water, obtains glass blocks by S102；S103 crushes the glass blocks, obtains glass particle；S104, the glass particle is evenly laid out on fireproof die, then fireproof die is placed in heating furnace according to one Determine heating rate and be heated to certain temperature, keep the temperature, then furnace cooling；S105 sloughs fireproof die, obtains glass water-permeable brick.
- 2. the method for preparing glass water-permeable brick using tailing as described in claim 1, which is characterized in that in step S101, press Components by weight percent meter weighs golden 7.5 parts of tailing, 0.2 part of quartz sand, 1.35 parts of lime, 0.4 part of aluminium oxide, 0.55 part of boric acid.
- 3. the method for preparing glass water-permeable brick using tailing as described in claim 1, which is characterized in that in step S101, press Components by weight percent meter weighs golden 8.5 parts of tailing, 0.1 part of quartz sand, 0.85 part of lime, 0.2 part of aluminium oxide, 0.35 part of boric acid.
- 4. the method for preparing glass water-permeable brick using tailing as described in claim 1, which is characterized in that in step S101, press Components by weight percent meter weighs golden 8 parts of tailing, 0.15 part of quartz sand, 1.1 parts of lime, 0.3 part of aluminium oxide, 0.45 part of boric acid.
- 5. the method for preparing glass water-permeable brick using tailing as described in claim 1, which is characterized in that in step S101, institute The grain size of golden tailing, quartz sand, lime, aluminium oxide and boric acid is stated no more than 0.074mm, will be heated with the rate of 5~6 DEG C/min Stove is warming up to 1200 DEG C from 25 DEG C, and heating furnace keeps the temperature 2h after being warming up to 1200 DEG C.
- 6. the method for preparing glass water-permeable brick using tailing as described in claim 1, which is characterized in that the glass particle Grain size be 0.7~2.5mm or 2.5~15mm when, by fireproof die be placed in heating furnace with the rate of 3 DEG C/min by heating furnace from 25 DEG C are warming up to 720~910 DEG C, and the temperature of heating furnace keeps the temperature 1h after reaching maximum temperature.
- 7. the method for preparing glass water-permeable brick using tailing as described in claim 1, which is characterized in that the glass particle When grain size is 0.08~0.63mm, fireproof die is placed in heating furnace, heating furnace is heated up from 25 DEG C with the rate of 3 DEG C/min To 680~870 DEG C, the temperature of heating furnace keeps the temperature 1h after reaching maximum temperature.
- 8. the method for preparing glass water-permeable brick using tailing as described in claim 1, which is characterized in that obtained glass is permeable The compression strength of brick is 30~40MPa, and coefficient of permeability is 1~8mm/s.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109942198A (en) * | 2019-05-05 | 2019-06-28 | 商洛学院 | The method for using hot pressing sintering method to prepare glass water-permeable brick as raw material using Pb-Zn tailings |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1040356A (en) * | 1989-08-15 | 1990-03-14 | 山东招远玻璃厂 | Handle gold and belong to the method that CHARACTERISTICS OF TAILINGS SAND is manufactured glass object |
| CN1117029A (en) * | 1994-08-13 | 1996-02-21 | 山东建材工业学院分院科研生产处科技开发中心 | Method for producing nucleated glass product with golden tailings |
| CN101696087A (en) * | 2009-11-12 | 2010-04-21 | 君达（凤县）环保资源无害化过程科技有限公司 | Black micro-crystalline glass plate made of gold ore tailings and manufacturing method thereof |
| CN105776870A (en) * | 2016-02-02 | 2016-07-20 | 大连地拓重工有限公司 | Gold ore tailing manufactured ceramic glass board and manufacturing method thereof |
| CN105967526A (en) * | 2016-05-06 | 2016-09-28 | 东莞市银特丰光学玻璃科技有限公司 | Formula of glass-ceramic plate and preparation technology |
| CN106986526A (en) * | 2017-05-23 | 2017-07-28 | 商洛学院 | A kind of glass water-permeable brick and preparation method thereof |
-
2017
- 2017-12-29 CN CN201711483936.4A patent/CN108147664A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1040356A (en) * | 1989-08-15 | 1990-03-14 | 山东招远玻璃厂 | Handle gold and belong to the method that CHARACTERISTICS OF TAILINGS SAND is manufactured glass object |
| CN1117029A (en) * | 1994-08-13 | 1996-02-21 | 山东建材工业学院分院科研生产处科技开发中心 | Method for producing nucleated glass product with golden tailings |
| CN101696087A (en) * | 2009-11-12 | 2010-04-21 | 君达（凤县）环保资源无害化过程科技有限公司 | Black micro-crystalline glass plate made of gold ore tailings and manufacturing method thereof |
| CN105776870A (en) * | 2016-02-02 | 2016-07-20 | 大连地拓重工有限公司 | Gold ore tailing manufactured ceramic glass board and manufacturing method thereof |
| CN105967526A (en) * | 2016-05-06 | 2016-09-28 | 东莞市银特丰光学玻璃科技有限公司 | Formula of glass-ceramic plate and preparation technology |
| CN106986526A (en) * | 2017-05-23 | 2017-07-28 | 商洛学院 | A kind of glass water-permeable brick and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109942198A (en) * | 2019-05-05 | 2019-06-28 | 商洛学院 | The method for using hot pressing sintering method to prepare glass water-permeable brick as raw material using Pb-Zn tailings |
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