CN101492275A - Method for producing high-admixture water resistant phosphogypsum product - Google Patents

Method for producing high-admixture water resistant phosphogypsum product Download PDF

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Publication number
CN101492275A
CN101492275A CNA2009101024572A CN200910102457A CN101492275A CN 101492275 A CN101492275 A CN 101492275A CN A2009101024572 A CNA2009101024572 A CN A2009101024572A CN 200910102457 A CN200910102457 A CN 200910102457A CN 101492275 A CN101492275 A CN 101492275A
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CN
China
Prior art keywords
maintenance
water
water resistant
phosphogypsum
ardealite
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.)
Pending
Application number
CNA2009101024572A
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Chinese (zh)
Inventor
杨三可
曹建新
解田
杨林
周泳波
胡宏
刘佳
田仁道
桂华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wengfu Group Co Ltd
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Wengfu Group Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Wengfu Group Co Ltd filed Critical Wengfu Group Co Ltd
Priority to CNA2009101024572A priority Critical patent/CN101492275A/en
Publication of CN101492275A publication Critical patent/CN101492275A/en
Pending legal-status Critical Current

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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
    • 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
    • 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
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20—Resistance against chemical, physical or biological attack
    • C04B2111/27—Water resistance, i.e. waterproof or water-repellent materials
    • 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
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

Abstract

The invention discloses a method for producing high addition-amount water-resistant ardealite building material. The method comprises the following steps that: ardealite accounting for 70 to 80 percent of the total weight, hydraulic cementing material accounting for 20 to 30 percent of the total weight and alkaline exciting agent accounting for 1 to 10 percent of the total weight are taken as raw materials and well mixed at a water-ash ratio (mass ratio) of between 0.18 and 0.22 so as to give a mixed material; a die is filled with the mixed material; the mixed material is molded under the pressure of between 10 and 20 MPa so as to prepare blank; the prepared blank is maintained for 1 to 3 days at normal temperature under normal pressure and then put into an autoclave for maintenance; and a medium of steaming-pressing maintenance is water vapor, wherein the steaming-pressing temperature is between 180 and 220 DEG C, and the heat preservation time is between 8 and 12 hours; the mixed material is discharged from the autoclave; and a high addition-amount water-resistant ardealite product can be obtained. The method has the advantages of raising the addition amount of ardealite and remarkably improving the water resistance of the gypsum product.

Description

The production method of high-admixture water resistant phosphogypsum product
Technical field
The invention belongs to chemical technology field, specifically relate to a kind of production method of phosphogypsum product.
Background technology
Phosphogypsum is a kind of industrial residue that discharges when producing phosphoric acid, and every production 1t phosphoric acid discharges the 5t phosphogypsum approximately.Its discharging not only takies a large amount of soils, also since phosphogypsum through the rainwater long period of soaking, solubility P wherein 2O 5With objectionable impuritiess such as fluorochemical can be by water body to the environment transmission, thereby cause soil, water system, atmospheric severe contamination.Therefore, the phosphogypsum comprehensive utilization of resources is extremely urgent.
At present existing phosphogypsum is produced the bibliographical information of building material mades such as plasterboard, gypsum block, gypsum brick, but after making moist, this class gypsum building material product moisture absorption easily deforms, cause soft, the mashed root of construction wall, influence its use properties, thereby greatly hindered its development and use.
Have about the patent application that solves plastering water tolerance technology at present: Chinese patent publication number CN1631835 disclose " a kind of production formula of high-strength and waterproofing plastering ", Chinese patent publication number CN1502582 and discloses " a kind of preparation method of moistureproof gypsum block ", Chinese patent publication number CN1884183 on 06 09th, 2004 and December 27 disclosed " high-strength waterproof gypsum brick and preparation method thereof " etc. in 2006.. on 06 29th, 2005, can reduce following three aspects to the approach of gypsum waterproof with the measure of taking according to these patents:
(1) plastering surface-coated or dipping hydrophobic substance.This method advantage is simple.Shortcoming is in case defective appears in coated plastering surface or part, and the gypsum that exposes will reduce water resistance by water-soluble erosion when running into water.And there is hydrophobic substance on the plastering surface, and the surperficial building operation of carrying out plastering is very inconvenient, and the cost of this plastering is more expensive.
(2) admixture slag, active pozzolans material etc. in the gypsum.This method advantage is that gypsum mixes with active mixed material, after the aquation, the hydrated products such as having generated the aquation calcium sulphoaluminate that reacts to each other has improved water resistance.Shortcoming be the active mixed material volume more after a little while, coefficient of softening has only about 0.6, does not reach the requirement of water resistance; If volume improves, then coefficient of softening increases, but the consumption of gypsum just significantly descends.
(3) admixture water-latex type or water miscible hydrophobic substance in the gypsum improve its water resistance.This method advantage is to keep the plastering decorative effect, can reach the purpose of waterproof again.Shortcoming is that intensity is relatively poor, is difficult to satisfy the minimum intensity requirement of some materials for walls.And the cost of this plastering is more expensive.
Summary of the invention
A kind of production method that had both improved the phosphogypsum volume, significantly improved the water-proof high-admixture water resistant phosphogypsum product of plastering that the objective of the invention is to overcome above-mentioned shortcoming and provide.
The production method of a kind of high-admixture water resistant phosphogypsum building materials of the present invention may further comprise the steps:
(1) material homogenizer:
Press phosphogypsum 70～80%, hydraulic cementing materials 20～30%, alkali-activator 1～10%, water cement ratio (mass ratio) 0.18～0.22 mixes raw material, gets mixture;
(2) moulding:
The said mixture material is filled in the mould,, makes blank at 10～20MPa pressure compacted under;
(3) maintenance:
Blank maintenance 1～3d under normal temperature and pressure with making goes into maintenance in the autoclave, and the medium of steam press maintenance is a water vapor, and wherein steaming the pressure temperature is 180～220 ℃, and soaking time is 8～12h, goes out still and obtains high-admixture water resistant phosphogypsum product.
The production method of above-mentioned high-admixture water resistant phosphogypsum building materials; wherein: hydraulic cementing materials is meant a kind of in yellow phosphorus furnace slag, granulated blast-furnace slag, flyash, silicon ash, silicate cement, high-alumina cement, the sulfurous iron ore slag or the combination more than two kinds and two kinds.
Alkali-activator is meant the combination of a kind of in lime, the carbide slag or two kinds.
The present invention compares with prior art, and present method utilizes gypsum to have three kinds of crystalline phases, is respectively terra alba, calcium sulphate hemihydrate and anhydrous calciumsulphate, and their dissolution rate there are differences.Present method can control that gypsum distributes mutually in the goods, makes it have the less relatively gypsum phase of a certain amount of dissolution rate.In goods, form certain hydraulicity material and mutual paraplasia simultaneously in the microtexture of the less relatively gypsum phase of dissolution rate, thereby both improved gypsum addition, significantly improve the plastering water tolerance again.And prescription and technology are simple, and production cost is low.Can effectively extenuate the pollution of phosphogypsum to environment.Be applicable to the phosphatic fertilizer company of a large amount of discharging phosphogypsums, better marketing prospect is arranged.
Embodiment
Embodiment 1:
Adopt phosphogypsum 1.6kg, yellow phosphorus furnace slag 0.4kg, lime 0.06kg, water consumption 0.40kg, after mixing, it is filled in the standard brick mould (in 240 * 115 * 53mm), under the condition of moulding pressure 10MPa, material is pressed into adobe, under the normal temperature and pressure behind the maintenance 1d, go into maintenance in the autoclave, steam and press 220 ℃ of temperature, soaking time 8h.Promptly get high-admixture water resistant phosphogypsum product after going out still.
Embodiment 2
Adopt phosphogypsum 1.6kg, yellow phosphorus furnace slag 0.4kg, lime 0.06kg, water consumption 0.40kg, after mixing, it is filled in the standard brick mould (in 240 * 115 * 53mm), under the condition of moulding pressure 15MPa, material is pressed into adobe, under the normal temperature and pressure behind the maintenance 1d, maintenance in autoclave, wherein steam-cured temperature is 180 ℃, soaking time is 8h.Promptly get high-admixture water resistant phosphogypsum product after going out still.
Embodiment 3
Adopt phosphogypsum 1.4kg, flyash 0.3kg, silicon ash 0.2kg, lime 0.16kg, water consumption 0.42kg after mixing, is filled in the standard brick mould (in 240 * 115 * 53mm) with it, under the condition of moulding pressure 10MPa, material is pressed into adobe, under the normal temperature and pressure behind the maintenance 3d, maintenance in autoclave, wherein steam-cured temperature is 200 ℃, and soaking time is 10h.Promptly get the high-admixture water resistant phosphogypsum brick after going out still.
Embodiment 4
Adopt phosphogypsum 1.4kg, silicate cement 0.4kg, high-alumina cement 0.2kg, carbide slag 0.06kg, water consumption 0.44kg after mixing, is filled in the standard brick mould (in 240 * 115 * 53mm) with it, under the condition of moulding pressure 20MPa, material is pressed into adobe, under the normal temperature and pressure behind the maintenance 3d, maintenance in autoclave, wherein steam-cured temperature is 200 ℃, and soaking time is 12h.Promptly get the high-admixture water resistant phosphogypsum brick after going out still.
Embodiment 5
Adopt phosphogypsum 1.4kg, granulated blast-furnace slag 0.3kg, silicon ash 0.2kg; sulfurous iron ore slag 0.1kg, carbide slag 0.02kg, lime 0.04kg; water consumption 0.45kg after mixing, is filled in the standard brick mould (in 240 * 115 * 53mm) with it; under the condition of moulding pressure 20MPa; material is pressed into adobe, under the normal temperature and pressure behind the maintenance 3d, maintenance in autoclave; wherein steam-cured temperature is 200 ℃, and soaking time is 10h.Promptly get the high-admixture water resistant phosphogypsum brick after going out still.
According to proportioning raw materials, preparation method and processing condition in the above-described embodiments, can be made into the high-admixture water resistant phosphogypsum product of other shapes such as hollow brick, Brick with blind hole with different moulds.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, any technical solution of the present invention content that do not break away from,, all still belong in the scope of technical solution of the present invention any simple modification, equivalent variations and modification that above embodiment did according to technical spirit of the present invention.

Claims (3)

1, a kind of production method of high-admixture water resistant phosphogypsum building materials may further comprise the steps:
(1) material homogenizer:
Press phosphogypsum 70～80%, hydraulic cementing materials 20～30%, alkali-activator 1～10%, water cement ratio (mass ratio) 0.18～0.22 mixes raw material, gets mixture;
(2) moulding:
The said mixture material is filled in the mould,, makes blank at 10～20MPa pressure compacted under;
(3) maintenance:
Blank maintenance 1～3d under normal temperature and pressure with making goes into maintenance in the autoclave, and the medium of steam press maintenance is a water vapor, and wherein steaming the pressure temperature is 180～220 ℃, and soaking time is 8～12h, goes out still and obtains high-admixture water resistant phosphogypsum product.
2, the production method of high-admixture water resistant phosphogypsum product as claimed in claim 1; it is characterized in that: hydraulic cementing materials is meant a kind of in yellow phosphorus furnace slag, granulated blast-furnace slag, flyash, silicon ash, silicate cement, high-alumina cement, the sulfurous iron ore slag or the combination more than two kinds and two kinds.
3, the production method of high-admixture water resistant phosphogypsum product as claimed in claim 1 or 2 is characterized in that: alkali-activator is meant the combination of a kind of in lime, the carbide slag or two kinds.
CNA2009101024572A 2009-03-06 2009-03-06 Method for producing high-admixture water resistant phosphogypsum product Pending CN101492275A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNA2009101024572A CN101492275A (en) 2009-03-06 2009-03-06 Method for producing high-admixture water resistant phosphogypsum product

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNA2009101024572A CN101492275A (en) 2009-03-06 2009-03-06 Method for producing high-admixture water resistant phosphogypsum product

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Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102531668A (en) * 2012-01-09 2012-07-04 武汉理工大学 Phosphogypsum-carbide slag system aerated concrete and preparation method thereof
CN103626462A (en) * 2013-11-01 2014-03-12 贵州开磷（集团）有限责任公司 Autoclaved yellow phosphorus slag pavement brick and making method thereof
CN104496390A (en) * 2015-01-14 2015-04-08 贵州友仁建材科技开发有限公司 Ardealite modified and strengthened damp-proof gypsum block
CN104710150A (en) * 2015-02-04 2015-06-17 贵州开磷集团股份有限公司 Imitation wood grain decorative plate and preparation method thereof
CN104725013A (en) * 2015-02-04 2015-06-24 贵州开磷集团股份有限公司 Phosphogypsum base material marble-imitated floor tile and preparation method thereof
CN104725014A (en) * 2015-02-04 2015-06-24 贵州开磷集团股份有限公司 Hemihydrate gypsum substrate simulated granite wall brick and preparation method thereof
CN104725011A (en) * 2015-02-04 2015-06-24 贵州开磷集团股份有限公司 Ardealite-based imitation pinewood structure building material and preparation method thereof
CN104725016A (en) * 2015-02-04 2015-06-24 贵州开磷集团股份有限公司 Phosphogypsum substrate porcelain-imitated ceiling material and preparation method thereof
CN104725007A (en) * 2015-02-04 2015-06-24 贵州开磷集团股份有限公司 Phosphogypsum-based stone-like structure building material and preparation method thereof
CN104725006A (en) * 2015-02-04 2015-06-24 贵州开磷集团股份有限公司 Phosphogypsum-based stone-like structure building material and preparation method thereof
CN104725009A (en) * 2015-02-04 2015-06-24 贵州开磷集团股份有限公司 Modified phosphor-gypsum synthetic wood plate material and preparation method thereof
CN104725018A (en) * 2015-02-04 2015-06-24 贵州开磷集团股份有限公司 Pine-like decorative material and preparation method thereof
CN104725017A (en) * 2015-02-04 2015-06-24 贵州开磷集团股份有限公司 Phosphogypsum substrate simulated wood floor and preparation method thereof
CN104725012A (en) * 2015-02-04 2015-06-24 贵州开磷集团股份有限公司 Phosphogypsum-based marble-imitated structure building material and preparation method thereof
CN104761226A (en) * 2015-02-04 2015-07-08 贵州开磷集团股份有限公司 Marble-texture-imitation decorative board and preparation method thereof
CN104761222A (en) * 2015-02-04 2015-07-08 贵州开磷集团股份有限公司 Phosphogypsum base material marble-imitation floor and preparation method thereof
CN104761221A (en) * 2015-02-04 2015-07-08 贵州开磷集团股份有限公司 Phosphogypsum-based imitation wood-floor-structured building material and preparation method thereof
CN104761218A (en) * 2015-02-04 2015-07-08 贵州开磷集团股份有限公司 Phosphogypsum-based imitation platycladus orientalis-structured building material and preparation method thereof
CN104891918A (en) * 2015-02-04 2015-09-09 贵州开磷集团股份有限公司 Phosphogypsum-based imitated granite structure building material and preparation method thereof
CN104891919A (en) * 2015-02-04 2015-09-09 贵州开磷集团股份有限公司 Phosphogypsum-based imitated cedar structure building material and preparation method thereof
CN104909688A (en) * 2015-02-04 2015-09-16 贵州开磷集团股份有限公司 Phosphogypsum-based metal-like decoration material and preparation method thereof
CN106145854A (en) * 2016-07-01 2016-11-23 马振义 Water-fast desulfurated plaster mould conjunction and preparation method thereof
CN106145853A (en) * 2016-07-01 2016-11-23 马振义 Water-fast ardealite mould conjunction and preparation method thereof
CN106278104A (en) * 2016-08-19 2017-01-04 中盐安徽红四方新型建材科技有限公司 Autoclaved lime-sand brick and preparation method thereof
CN106348706A (en) * 2016-08-19 2017-01-25 中盐安徽红四方新型建材科技有限公司 Autoclave plaster block capable of inhibiting efflorescence and preparation method thereof
CN106747174A (en) * 2016-11-21 2017-05-31 同济大学 Water-resistant type air-entrained concrete building block prepared by a kind of utilization ardealite hydraulicity composite gel material
CN111823633A (en) * 2020-07-26 2020-10-27 广东绿富域资源再生科技有限公司 Domestic garbage incinerator slag brick making mold mechanism and control method

Cited By (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102531668A (en) * 2012-01-09 2012-07-04 武汉理工大学 Phosphogypsum-carbide slag system aerated concrete and preparation method thereof
CN102531668B (en) * 2012-01-09 2014-05-14 武汉理工大学 Phosphogypsum-carbide slag system aerated concrete and preparation method thereof
CN103626462A (en) * 2013-11-01 2014-03-12 贵州开磷（集团）有限责任公司 Autoclaved yellow phosphorus slag pavement brick and making method thereof
CN103626462B (en) * 2013-11-01 2015-05-20 贵州开磷（集团）有限责任公司 Autoclaved yellow phosphorus slag pavement brick and making method thereof
CN104496390A (en) * 2015-01-14 2015-04-08 贵州友仁建材科技开发有限公司 Ardealite modified and strengthened damp-proof gypsum block
CN104761226A (en) * 2015-02-04 2015-07-08 贵州开磷集团股份有限公司 Marble-texture-imitation decorative board and preparation method thereof
CN104891918A (en) * 2015-02-04 2015-09-09 贵州开磷集团股份有限公司 Phosphogypsum-based imitated granite structure building material and preparation method thereof
CN104725014A (en) * 2015-02-04 2015-06-24 贵州开磷集团股份有限公司 Hemihydrate gypsum substrate simulated granite wall brick and preparation method thereof
CN104725011A (en) * 2015-02-04 2015-06-24 贵州开磷集团股份有限公司 Ardealite-based imitation pinewood structure building material and preparation method thereof
CN104725016A (en) * 2015-02-04 2015-06-24 贵州开磷集团股份有限公司 Phosphogypsum substrate porcelain-imitated ceiling material and preparation method thereof
CN104725007A (en) * 2015-02-04 2015-06-24 贵州开磷集团股份有限公司 Phosphogypsum-based stone-like structure building material and preparation method thereof
CN104725006A (en) * 2015-02-04 2015-06-24 贵州开磷集团股份有限公司 Phosphogypsum-based stone-like structure building material and preparation method thereof
CN104725009A (en) * 2015-02-04 2015-06-24 贵州开磷集团股份有限公司 Modified phosphor-gypsum synthetic wood plate material and preparation method thereof
CN104725018A (en) * 2015-02-04 2015-06-24 贵州开磷集团股份有限公司 Pine-like decorative material and preparation method thereof
CN104725017A (en) * 2015-02-04 2015-06-24 贵州开磷集团股份有限公司 Phosphogypsum substrate simulated wood floor and preparation method thereof
CN104725012A (en) * 2015-02-04 2015-06-24 贵州开磷集团股份有限公司 Phosphogypsum-based marble-imitated structure building material and preparation method thereof
CN104710150A (en) * 2015-02-04 2015-06-17 贵州开磷集团股份有限公司 Imitation wood grain decorative plate and preparation method thereof
CN104761222A (en) * 2015-02-04 2015-07-08 贵州开磷集团股份有限公司 Phosphogypsum base material marble-imitation floor and preparation method thereof
CN104761221A (en) * 2015-02-04 2015-07-08 贵州开磷集团股份有限公司 Phosphogypsum-based imitation wood-floor-structured building material and preparation method thereof
CN104761218A (en) * 2015-02-04 2015-07-08 贵州开磷集团股份有限公司 Phosphogypsum-based imitation platycladus orientalis-structured building material and preparation method thereof
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CN104891919A (en) * 2015-02-04 2015-09-09 贵州开磷集团股份有限公司 Phosphogypsum-based imitated cedar structure building material and preparation method thereof
CN104909688A (en) * 2015-02-04 2015-09-16 贵州开磷集团股份有限公司 Phosphogypsum-based metal-like decoration material and preparation method thereof
CN104725018B (en) * 2015-02-04 2016-09-07 贵州开磷集团股份有限公司 A kind of imitative pine ornament materials and preparation method thereof
CN104761222B (en) * 2015-02-04 2017-01-18 贵州开磷磷石膏综合利用有限公司 Phosphogypsum base material marble-imitation floor and preparation method thereof
CN104725013B (en) * 2015-02-04 2017-01-11 贵州开磷磷石膏综合利用有限公司 Phosphogypsum base material marble-imitated floor tile and preparation method thereof
CN106145853A (en) * 2016-07-01 2016-11-23 马振义 Water-fast ardealite mould conjunction and preparation method thereof
CN106145854A (en) * 2016-07-01 2016-11-23 马振义 Water-fast desulfurated plaster mould conjunction and preparation method thereof
CN106278104A (en) * 2016-08-19 2017-01-04 中盐安徽红四方新型建材科技有限公司 Autoclaved lime-sand brick and preparation method thereof
CN106348706A (en) * 2016-08-19 2017-01-25 中盐安徽红四方新型建材科技有限公司 Autoclave plaster block capable of inhibiting efflorescence and preparation method thereof
CN106348706B (en) * 2016-08-19 2018-12-28 中盐安徽红四方新型建材科技有限公司 Inhibit the autoclave plaster building block and preparation method of scum
CN106747174A (en) * 2016-11-21 2017-05-31 同济大学 Water-resistant type air-entrained concrete building block prepared by a kind of utilization ardealite hydraulicity composite gel material
CN111823633A (en) * 2020-07-26 2020-10-27 广东绿富域资源再生科技有限公司 Domestic garbage incinerator slag brick making mold mechanism and control method
CN111823633B (en) * 2020-07-26 2022-04-01 广东绿富域资源再生科技有限公司 Domestic garbage incinerator slag brick making mold mechanism and control method

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Application publication date: 20090729