CN111302711A - Dry powder mortar production process - Google Patents
Dry powder mortar production process Download PDFInfo
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- CN111302711A CN111302711A CN202010138181.XA CN202010138181A CN111302711A CN 111302711 A CN111302711 A CN 111302711A CN 202010138181 A CN202010138181 A CN 202010138181A CN 111302711 A CN111302711 A CN 111302711A
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- production process
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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
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- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a dry powder mortar production process, relates to the field of building materials, and aims to solve the problem of how to prepare mortar by using industrial wastewater and waste residues, and the technical scheme key points are as follows: a dry powder mortar production process is characterized in that: the method comprises the following steps: 1) pretreatment: taking waste water discharged from a paper machine, and adding clear water for mixing; 2) flocculation: adding a flocculating agent into the pretreated liquid, and stirring to react to obtain flocculated fibers; 3) cleaning: discharging excessive water in the flocculated fibers and then cleaning with clear water; 4) proportioning mixed liquid: adding clear water and flocculating fiber into a barrel for mixing; 5) pulping: adding steel slag powder, fly ash, cement ash, gypsum and quartz sand, and mixing and stirring uniformly. The dry powder mortar production process combines the waste water and the industrial waste residue generated in paper making, thereby preparing the mortar with strong ageing resistance.
Description
Technical Field
The invention relates to the field of building materials, in particular to a dry powder mortar production process.
Background
Along with the improvement of living standard, the requirements of people on the living environment of the people are greatly increased day by day, and in the building process of a house, heat preservation, heat insulation and silencing measures are adopted, and a heat insulation layer is additionally arranged on the surface of a main engineering. The initial material is a polyphenyl board heat insulation layer, and a heat insulation mortar layer is arranged behind the polyphenyl board heat insulation layer, and the principle of the heat insulation mortar layer is that a plurality of tiny vacuum bubbles form a thin film to achieve the effects of heat insulation, heat insulation and silence. However, the polystyrene board has extremely poor high temperature resistance and undesirable fire-proof effect, and once the fire is on the ground such as Shanghai and Shenyang, the use of the polystyrene board is forcibly prohibited by the nation. The inorganic vitrified micro bubble thermal mortar is relatively safe due to the composition of non-combustible inorganic materials, but the cost is high, which can cause the total cost of engineering to rise. The search for a mortar with low brittleness, high tensile strength, heat preservation, energy conservation and low cost is a research hotspot in the building material industry.
In the prior art, a chinese patent with a public number of CN103265258B introduces a dry powder mortar prepared from industrial waste slag, wherein the mixture ratio of fly ash, steel slag powder, cement, gypsum, quartz sand and water reducing agent is adjusted so as to mix vitrified micro bubbles into the mortar, thereby improving the fluidity of concrete, having a heat insulation effect, and reducing the temperature of the surface heat balance of an object. However, in the practical application process, after the material is applied to a wall body, the glass beads are lost along with wind and sunshine, so that the aging phenomenon of the wall body is serious, therefore, the invention assumes that substances which can be applied and are obtained from industrial wastewater can act on the glass beads, so that the service life of the wall body is prolonged, and therefore, the process for preparing the dry powder mortar by combining the industrial wastewater is provided.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a dry powder mortar production process, which combines industrial waste residues and papermaking wastewater to prepare the dry powder mortar, so that the ageing resistance life of the dry powder mortar is greatly prolonged.
The technical purpose of the invention is realized by the following technical scheme: a dry powder mortar production process comprises the following steps: 1) Pretreatment: taking waste water discharged from a paper machine, and adding clear water for mixing; 2) Flocculation: adding a flocculating agent into the pretreated liquid, and stirring to react to obtain flocculated fibers; 3) Cleaning: discharging excessive water in the flocculated fibers and then cleaning with clear water; 4) Proportioning mixed liquid: adding clear water and flocculating fiber into a barrel for mixing; 6) Pulping: adding steel slag powder, fly ash, cement ash, gypsum and quartz sand, and mixing and stirring uniformly.
The invention is further configured to: and adding a coagulant aid in the flocculation process in the second step.
The invention is further configured to: the coagulant aid adopts strong cationic polyacrylamide.
The invention is further configured to: the coagulant aid adopts polyaluminium chloride.
The invention is further configured to: and drying by using a drying machine after the step three cleaning.
The invention is further configured to: and step four, after the mixture is matched, scattering is carried out.
The invention is further configured to: the step of breaking up includes breaking up the flocs by stirring in a vat using a stirring device.
The invention is further configured to: the gypsum is desulfurized gypsum.
In conclusion, the invention has the following beneficial effects: the method comprises the steps of recycling waste water discharged by a paper machine in a paper mill, flocculating the waste water to obtain flocculated fibers, and mixing and stirring the flocculated fibers with steel slag powder, cement ash, gypsum powder and quartz sand to obtain dry powder mortar, so that the dry powder mortar is limited by the fibers on vitrified micro bubbles, the loss of the vitrified micro bubbles is avoided, the ageing resistance of a wall body is prolonged, cracks in the wall body can be avoided, and the service life of the wall body is prolonged better.
Detailed Description
The present invention will be described in detail with reference to examples.
A process for preparing the dry-mixed mortar includes such steps as providing raw materials including powdered coal ash, steel slag powder, cement ash, gypsum powder, desulfurized gypsum, quartz sand and white water.
Firstly, pretreatment: adding the obtained white water into clear water for dilution and mixing, and simultaneously cleaning.
And a second step of flocculation: adding a flocculating agent into the diluted white water, wherein the flocculating agent preferentially adopts strong cationic polyacrylamide to perform flocculation reaction, and combining fiber tissues in the white water to obtain flocculated fibers; certainly, in order to obtain the flocculated fibers with higher efficiency, a coagulant aid can be added into the white water, and the coagulant aid adopts polyaluminium chloride, so that the reaction quality is improved, and the fibers are better separated out.
Then, cleaning: discharging the flocculated excessive water mixed with other impurities, and then adding clean water again for cleaning again.
And fourthly, spin-drying: and (4) fishing out the flocculated fibers, and then putting the flocculated fibers into a drying machine for drying in the sun, so that most of water is thrown out.
The fifth step is to mix the liquid: and adding clear water into the spun-dried flocculation fibers for mixing, stirring and scattering by adopting a stirrer in the mixing process, wherein the stirring blade of the stirrer is provided with a cutting edge and is used for scattering the flocculation fibers into a dispersion state.
Then pulping: namely, adding steel slag powder, fly ash, cement ash, gypsum and quartz sand, mixing and stirring uniformly to obtain dry powder mortar.
Through the process steps, the waste water generated by papermaking, the steel slag powder generated in the industrial production process and the coal slag powder can be reasonably recycled, the conventional cement ash, gypsum and quartz sand are mixed and stirred to obtain dry powder mortar, and the dry powder mortar is internally provided with the vitrified micro bubbles mixed in the steel slag powder, so that the fluidity of concrete can be effectively improved, the heat insulation effect is realized, and the surface heat balance temperature of an object is reduced; meanwhile, the vitrified micro bubbles can be wrapped by fiber tissues and are not easy to lose, so that the vitrified micro bubbles have longer service life, and meanwhile, the fiber tissues can play better tensile strength for the wall body, so that the wall body is prevented from cracking, the wall body is effectively protected, and the vitrified micro bubbles have better ageing resistance and longer service life.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (8)
1. A dry powder mortar production process is characterized in that: the method comprises the following steps: 1) Pretreatment: taking waste water discharged from a paper machine, and adding clear water for mixing; 2) Flocculation: adding a flocculating agent into the pretreated liquid, and stirring to react to obtain flocculated fibers; 3) Cleaning: discharging excessive water in the flocculated fibers and then cleaning with clear water; 4) Proportioning mixed liquid: adding clear water and flocculating fiber into a barrel for mixing; 5) Pulping: adding steel slag powder, fly ash, cement ash, gypsum and quartz sand, and mixing and stirring uniformly.
2. The dry-mixed mortar production process according to claim 1, characterized in that: and adding a coagulant aid in the flocculation process in the second step.
3. The dry-mixed mortar production process according to claim 2, characterized in that: the coagulant aid adopts strong cationic polyacrylamide.
4. The dry-mixed mortar production process according to claim 3, characterized in that: the coagulant aid adopts polyaluminium chloride.
5. The dry-mixed mortar production process according to claim 1, characterized in that: and drying by using a drying machine after the step three cleaning.
6. The dry-mixed mortar production process according to claim 1, characterized in that: and step four, after the mixture is matched, scattering is carried out.
7. The dry-mixed mortar production process according to claim 6, characterized in that: the step of breaking up includes breaking up the flocs by stirring in a vat using a stirring device.
8. The dry-mixed mortar production process according to claim 1, characterized in that: the gypsum is desulfurized gypsum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010138181.XA CN111302711A (en) | 2020-03-03 | 2020-03-03 | Dry powder mortar production process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010138181.XA CN111302711A (en) | 2020-03-03 | 2020-03-03 | Dry powder mortar production process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111302711A true CN111302711A (en) | 2020-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010138181.XA Pending CN111302711A (en) | 2020-03-03 | 2020-03-03 | Dry powder mortar production process |
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| CN (1) | CN111302711A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE821726A (en) * | 1973-11-02 | 1975-02-17 | Improving sag-resistance of dry-set portland cement mortars - by adding clay and copolymer of acrylamide | |
| CN103265258A (en) * | 2012-10-28 | 2013-08-28 | 甘肃立之林建材有限公司 | Dry powder mortar prepared from industrial residues |
| CN104402138A (en) * | 2014-10-24 | 2015-03-11 | 无锡伊佩克科技有限公司 | Papermaking wastewater treatment method |
| CN107673709A (en) * | 2017-10-27 | 2018-02-09 | 济南大学 | It is a kind of to use insulation material of paper mill sludge type photocatalysis coating and preparation method thereof |
| CN208327596U (en) * | 2018-02-27 | 2019-01-04 | 中国轻工业成都设计工程有限公司 | A kind of sewage disposal system of pulping and paper-making |
-
2020
- 2020-03-03 CN CN202010138181.XA patent/CN111302711A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE821726A (en) * | 1973-11-02 | 1975-02-17 | Improving sag-resistance of dry-set portland cement mortars - by adding clay and copolymer of acrylamide | |
| CN103265258A (en) * | 2012-10-28 | 2013-08-28 | 甘肃立之林建材有限公司 | Dry powder mortar prepared from industrial residues |
| CN104402138A (en) * | 2014-10-24 | 2015-03-11 | 无锡伊佩克科技有限公司 | Papermaking wastewater treatment method |
| CN107673709A (en) * | 2017-10-27 | 2018-02-09 | 济南大学 | It is a kind of to use insulation material of paper mill sludge type photocatalysis coating and preparation method thereof |
| CN208327596U (en) * | 2018-02-27 | 2019-01-04 | 中国轻工业成都设计工程有限公司 | A kind of sewage disposal system of pulping and paper-making |
Non-Patent Citations (1)
| Title |
|---|
| 郭亚丹等: "《水处理工程设计指南及案例》", 30 April 2017, 冶金工业出版社 * |
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Application publication date: 20200619 |
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| RJ01 | Rejection of invention patent application after publication |