CN106045448A - Production process for phosphogypsum baking-free brick - Google Patents
Production process for phosphogypsum baking-free brick Download PDFInfo
- Publication number
- CN106045448A CN106045448A CN201610672690.4A CN201610672690A CN106045448A CN 106045448 A CN106045448 A CN 106045448A CN 201610672690 A CN201610672690 A CN 201610672690A CN 106045448 A CN106045448 A CN 106045448A
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- CN
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- Prior art keywords
- baking
- ardealite
- free
- brick
- ardealite brick
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Classifications
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- 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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/14—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
- C04B28/142—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements containing synthetic or waste calcium sulfate cements
- C04B28/143—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements containing synthetic or waste calcium sulfate cements the synthetic calcium sulfate being phosphogypsum
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a production process for a phosphogypsum baking-free brick; with use of a hydration recrystallization process, the production operation is simple and convenient, the energy consumption can be greatly reduced, actual production operation is easy, the produced baking-free brick has high compressive strength, on the other hand, with production and utilization of solid waste phosphogypsum, a large number of industrial solid waste phosphogypsum is facilitated to be digested and stored, and the resource comprehensive utilization rate of the phosphogypsum is improved, so as to solve the problem of environmental pollution caused by the phosphogypsum. The baking-free brick produced by the production process has the advantages of high compressive strength and bending strength and good freeze-thaw performance, and has huge market potential and broad prospects.
Description
Technical field
The invention belongs to non-burning brick production field, it is more particularly related to the life of a kind of baking-free ardealite brick
Production. art.
Background technology
Ardealite is the industrial solid castoff that phosphoric acid by wet process technology produces process phosphoric acid Cao discharge, also exists environment sternly
The pollution of weight and harm.Ardealite comprehensive utilization of resources, main application concentrates on following four aspect: construction material, cement
Industry, chemical industry and agricultural.Due to clay brick from great, volume is little, production efficiency is low, energy consumption is high and destroy plough
Ground, pollution environment, energy waste greatly, have become as national economy and continue, stablize obstacle big be good for into development one, it would be highly desirable to needs
A kind of method solving ardealite and fired brick.
Summary of the invention
Problem to be solved by this invention is to provide the production technology of a kind of baking-free ardealite brick.
To achieve these goals, the technical scheme that the present invention takes is:
The production technology of a kind of baking-free ardealite brick, comprises the steps:
(1) ageing is neutralized
Ardealite is prepared with the ratio of 40:1-60:1 with Calx, is then placed in blender Cao stirring mixing, then will stir
Mixing uniform material and carry out ageing disposal, form ardealite, the time of described stirring is 2-4h, and the time of described ageing is 26-
30h；
(2) preparation material
Ardealite and yellow sand and the cement of ageing will be neutralized, and carry out weighing preparation by mixed proportion, form compound；
(3) mix and blend
The compound that will prepare, is stirred mixing in being placed in agitator, the water being subsequently adding 3-5% is stirred again, makes thing
Material stirs with moisture, prepares mixed material, and the time of described mix and blend is 20-40min；
(4) compressing
Mixed material is distributed in mould, then mould is placed under hydraulic press compressing, prepare baking-free ardealite brick base, institute
The pressure stating hydraulic press is 20-40MPa；
(5) wet type maintenance
Being placed in curing field by baking-free ardealite brick base and carry out wet curing, the frequency of described water spray is 2-4h/ time；
(6) drying and dehydrating
By the baking-free ardealite brick base after wet type maintenance, it is placed in drying baker, at a temperature of 120-180 DEG C, is dried de-
Water 4-6h, prepares baking-free ardealite brick dry body；
(7) immersion aquation recrystallization
By baking-free ardealite brick dry body, it is immersed in room temperature pond, soaks 0.5-1.5h, prepare water suction baking-free ardealite brick base
Body；
(8) natural curing
To be absorbed water baking-free ardealite brick base substrate, and under field conditions (factors), natural curing is dried 27-29d, obtains aquation recrystallization phosphorus stone
Cream is non-burning brick.
Preferably, in described step (1), the moisture content of ardealite is 8-12%.
Preferably, in described step (2), the ratio of ardealite and yellow sand and cement is 7:1:2-6:1:3.
Preferably, before mixed material being distributed in mould by described step (4), mould is carried out washing 2-4 time.
Preferably, in described step (5), the time of wet type maintenance is 20-28h, and the temperature of described wet type maintenance is 20-28
℃。
Preferably, described step (5) carries out natural drying 1-3d after wet type maintenance.
Beneficial effect: the invention provides the production technology of a kind of baking-free ardealite brick, utilizes aquation recrystallizing technology, raw
Produce easy and simple to handle, the loss of energy can be reduced significantly, it is easy to actual production operation, and non-burning brick the resisting produced
Compressive Strength is high, on the other hand Commercial cultivation solid waste ardealite, and be conducive to dissolving in a large number industrial solid wastes ardealite, improves
Ardealite comprehensive utilization of resources rate, thus solve the problem of environmental pollution that ardealite causes.This kind of production technology is used to produce
Out non-burning brick has resistance to compression and High anti bending strength and the good advantage of freeze thawing, and market potential is huge, has a extensive future.
Detailed description of the invention
Embodiment 1:
The production technology of a kind of baking-free ardealite brick, comprises the steps:
(1) ageing is neutralized
Ardealite is prepared with the ratio of 40:1 with Calx, is then placed in blender Cao stirring mixing, then by equal for stirring
Even material carries out ageing to be disposed, and forms ardealite, and the time of described stirring is 2h, and the time of described ageing is 26h, described phosphorus
The moisture content of Gypsum Fibrosum is 8%；
(2) preparation material
Ardealite and yellow sand and the cement of ageing will be neutralized, and carry out weighing preparation by mixed proportion, form compound, described phosphorus stone
Cream is 7:1:2 with the ratio of yellow sand and cement；
(3) mix and blend
The compound that will prepare, is stirred mixing in being placed in agitator, be subsequently adding the water of 3% and be stirred, make material
Stirring with moisture, prepare mixed material, the time of described mix and blend is 20min；
(4) compressing
Carry out washing 2 times by mould, then mixed material is distributed in mould, then mould is placed under hydraulic press and is pressed into
Type, prepares baking-free ardealite brick base, and the pressure of described hydraulic press is 20MPa,；
(5) wet type maintenance
Baking-free ardealite brick base is placed in curing field and carries out wet curing, after wet type maintenance, carry out natural drying 1d, described spray
The frequency of water is 2h/ time, and the time of described wet type maintenance is 20h, and the temperature of described wet type maintenance is 20 DEG C；
(6) drying and dehydrating
By the baking-free ardealite brick base after wet type maintenance, it is placed in drying baker, at a temperature of 120 DEG C, is dried dehydration 4h,
Prepare baking-free ardealite brick dry body；
(7) immersion aquation recrystallization
By baking-free ardealite brick dry body, it is immersed in room temperature pond, soaks 0.5h, prepare water suction baking-free ardealite brick base substrate；
(8) natural curing
To be absorbed water baking-free ardealite brick base substrate, and under field conditions (factors), natural curing is dried 27d, obtains aquation recrystallization ardealite
Non-burning brick.
Embodiment 2:
The production technology of a kind of baking-free ardealite brick, comprises the steps:
(1) ageing is neutralized
Ardealite is prepared with the ratio of 50:1 with Calx, is then placed in blender Cao stirring mixing, then by equal for stirring
Even material carries out ageing to be disposed, and forms ardealite, and the time of described stirring is 3h, and the time of described ageing is 28h, described phosphorus
The moisture content of Gypsum Fibrosum is 10%；
(2) preparation material
Ardealite and yellow sand and the cement of ageing will be neutralized, and carry out weighing preparation by mixed proportion, form compound, described phosphorus stone
Cream is 6.5:1:2.5 with the ratio of yellow sand and cement；
(3) mix and blend
The compound that will prepare, is stirred mixing in being placed in agitator, be subsequently adding the water of 4% and be stirred, make material
Stirring with moisture, prepare mixed material, the time of described mix and blend is 30min；
(4) compressing
Carry out washing 3 times by mould, then mixed material is distributed in mould, then mould is placed under hydraulic press and is pressed into
Type, prepares baking-free ardealite brick base, and the pressure of described hydraulic press is 30MPa,；
(5) wet type maintenance
Baking-free ardealite brick base is placed in curing field and carries out wet curing, after wet type maintenance, carry out natural drying 2d, described spray
The frequency of water is 3/ time, and the time of described wet type maintenance is 24h, and the temperature of described wet type maintenance is 24 DEG C；
(6) drying and dehydrating
By the baking-free ardealite brick base after wet type maintenance, it is placed in drying baker, at a temperature of 150 DEG C, is dried dehydration 5h,
Prepare baking-free ardealite brick dry body；
(7) immersion aquation recrystallization
By baking-free ardealite brick dry body, it is immersed in room temperature pond, soaks 1.0h, prepare water suction baking-free ardealite brick base substrate；
(8) natural curing
To be absorbed water baking-free ardealite brick base substrate, and under field conditions (factors), natural curing is dried 28d, obtains aquation recrystallization ardealite
Non-burning brick.
Embodiment 3
The production technology of a kind of baking-free ardealite brick, comprises the steps:
(1) ageing is neutralized
Ardealite is prepared with the ratio of 60:1 with Calx, is then placed in blender Cao stirring mixing, then by equal for stirring
Even material carries out ageing to be disposed, and forms ardealite, and the time of described stirring is 4h, and the time of described ageing is 30h, described phosphorus
The moisture content of Gypsum Fibrosum is 12%；
(2) preparation material
Ardealite and yellow sand and the cement of ageing will be neutralized, and carry out weighing preparation by mixed proportion, form compound, described phosphorus stone
Cream is 6:1:3 with the ratio of yellow sand and cement；
(3) mix and blend
The compound that will prepare, is stirred mixing in being placed in agitator, be subsequently adding the water of 5% and be stirred, make material
Stirring with moisture, prepare mixed material, the time of described mix and blend is 40min；
(4) compressing
Carry out washing 4 times by mould, then mixed material is distributed in mould, then mould is placed under hydraulic press and is pressed into
Type, prepares baking-free ardealite brick base, and the pressure of described hydraulic press is 40MPa,；
(5) wet type maintenance
Baking-free ardealite brick base is placed in curing field and carries out wet curing, after wet type maintenance, carry out natural drying 3d, described spray
The frequency of water is 4h/ time, and the time of described wet type maintenance is 28h, and the temperature of described wet type maintenance is 28 DEG C；
(6) drying and dehydrating
By the baking-free ardealite brick base after wet type maintenance, it is placed in drying baker, at a temperature of 180 DEG C, is dried dehydration 6h,
Prepare baking-free ardealite brick dry body；
(7) immersion aquation recrystallization
By baking-free ardealite brick dry body, it is immersed in room temperature pond, soaks 1.5h, prepare water suction baking-free ardealite brick base substrate；
(8) natural curing
To be absorbed water baking-free ardealite brick base substrate, and under field conditions (factors), natural curing is dried 29d, obtains aquation recrystallization ardealite
Non-burning brick.
After above method, taking out sample respectively, measurement result is as follows:
| Detection project | Embodiment 1 | Embodiment 2 | Embodiment 3 | Existing index |
| Comprcssive strength (MPa) | 21.4 | 25.8 | 23.2 | 15.8 |
| Rupture strength (MPa) | 5.9 | 6.1 | 5.8 | 3.2 |
| Resistance to water (MPa) | 13.9 | 15.6 | 14.1 | 13.3 |
Can draw according to above table data, when embodiment 2 parameter produce after non-burning brick than prior art produce after
Non-burning brick comprcssive strength is high, and rupture strength and resistance to water also increased, and are now more beneficial for non-burning brick production.
The invention provides the production technology of a kind of baking-free ardealite brick, utilize aquation recrystallizing technology, production operation letter
Just, the loss of energy can be reduced significantly, it is easy to actual production operation, and the non-burning brick comprcssive strength produced
Height, on the other hand Commercial cultivation solid waste ardealite, be conducive to dissolving in a large number industrial solid wastes ardealite, improves ardealite
Comprehensive utilization of resources rate, thus solve the problem of environmental pollution that ardealite causes.This kind of production technology is used to produce
Non-burning brick have resistance to compression and High anti bending strength and the good advantage of freeze thawing, and market potential is huge, has a extensive future.
Above-described is only the preferred embodiment of the present invention, it is noted that for those of ordinary skill in the art
For, without departing from the concept of the premise of the invention, it is also possible to make some deformation and improvement, these broadly fall into the present invention
Protection domain.
Claims (6)
1. the production technology of a baking-free ardealite brick, it is characterised in that comprise the steps:
(1) ageing is neutralized
Ardealite is prepared with the ratio of 40:1-60:1 with Calx, is then placed in blender Cao stirring mixing, then will stir
Mixing uniform material and carry out ageing disposal, form ardealite, the time of described stirring is 2-4h, and the time of described ageing is 26-
30h；
(2) preparation material
Ardealite and yellow sand and the cement of ageing will be neutralized, and carry out weighing preparation by mixed proportion, form compound；
(3) mix and blend
The compound that will prepare, is stirred mixing in being placed in agitator, the water being subsequently adding 3-5% is stirred again, makes thing
Material stirs with moisture, prepares mixed material, and the time of described mix and blend is 20-40min；
(4) compressing
Mixed material is distributed in mould, then mould is placed under hydraulic press compressing, prepare baking-free ardealite brick base, institute
The pressure stating hydraulic press is 20-40MPa；
(5) wet type maintenance
Being placed in curing field by baking-free ardealite brick base and carry out wet curing, the frequency of described water spray is 2-4h/ time；
(6) drying and dehydrating
By the baking-free ardealite brick base after wet type maintenance, it is placed in drying baker, at a temperature of 120-180 DEG C, is dried de-
Water 4-6h, prepares baking-free ardealite brick dry body；
(7) immersion aquation recrystallization
By baking-free ardealite brick dry body, it is immersed in room temperature pond, soaks 0.5-1.5h, prepare water suction baking-free ardealite brick base
Body；
(8) natural curing
To be absorbed water baking-free ardealite brick base substrate, and under field conditions (factors), natural curing is dried 27-29d, obtains aquation recrystallization phosphorus stone
Cream is non-burning brick.
2. according to the production technology of a kind of baking-free ardealite brick described in claim 1, it is characterised in that: in described step (1)
The moisture content of ardealite is 8-12%.
3. according to the production technology of a kind of baking-free ardealite brick described in claim 1, it is characterised in that: in described step (2)
Ardealite is 7:1:2-6:1:3 with the ratio of yellow sand and cement.
4. according to the production technology of a kind of baking-free ardealite brick described in claim 1, it is characterised in that: in described step (4)
Before mixed material is distributed in mould, mould is carried out washing 2-4 time.
5. according to the production technology of a kind of baking-free ardealite brick described in claim 1, it is characterised in that: in described step (5)
The time of wet type maintenance is 20-28h, and the temperature of described wet type maintenance is 20-28 DEG C.
6. according to the production technology of a kind of baking-free ardealite brick described in claim 1, it is characterised in that: in described step (5)
Natural drying 1-3d is carried out after wet type maintenance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610672690.4A CN106045448A (en) | 2016-08-16 | 2016-08-16 | Production process for phosphogypsum baking-free brick |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610672690.4A CN106045448A (en) | 2016-08-16 | 2016-08-16 | Production process for phosphogypsum baking-free brick |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106045448A true CN106045448A (en) | 2016-10-26 |
Family
ID=57482030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610672690.4A Pending CN106045448A (en) | 2016-08-16 | 2016-08-16 | Production process for phosphogypsum baking-free brick |
Country Status (1)
| Country | Link |
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| CN (1) | CN106045448A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110482989A (en) * | 2019-09-19 | 2019-11-22 | 四川建筑职业技术学院 | A kind of concrete mixing plant waste water waste pulp and ardealite prepare non-burning brick technique |
| CN112125581A (en) * | 2020-08-18 | 2020-12-25 | 福泉市盛源新型建材有限公司 | High-phosphorus-content building gypsum pavement brick and preparation method thereof |
-
2016
- 2016-08-16 CN CN201610672690.4A patent/CN106045448A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110482989A (en) * | 2019-09-19 | 2019-11-22 | 四川建筑职业技术学院 | A kind of concrete mixing plant waste water waste pulp and ardealite prepare non-burning brick technique |
| CN112125581A (en) * | 2020-08-18 | 2020-12-25 | 福泉市盛源新型建材有限公司 | High-phosphorus-content building gypsum pavement brick and preparation method thereof |
| CN112125581B (en) * | 2020-08-18 | 2022-05-24 | 福泉市盛源新型建材有限公司 | High-phosphorus-doped building gypsum pavement brick and preparation method thereof |
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Application publication date: 20161026 |
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| WD01 | Invention patent application deemed withdrawn after publication |