CN103626462A - Autoclaved yellow phosphorus slag pavement brick and making method thereof - Google Patents

Autoclaved yellow phosphorus slag pavement brick and making method thereof Download PDF

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Publication number
CN103626462A
CN103626462A CN201310533643.8A CN201310533643A CN103626462A CN 103626462 A CN103626462 A CN 103626462A CN 201310533643 A CN201310533643 A CN 201310533643A CN 103626462 A CN103626462 A CN 103626462A
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yellow phosphorus
phosphorus furnace
slag
furnace slag
phosphogypsum
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CN201310533643.8A
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CN103626462B (en
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杨永彬
杨步雷
徐韦洪
向前勇
刘敏
刘小成
邹国军
宋维相
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贵州开磷(集团)有限责任公司
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Abstract

The invention discloses an autoclaved yellow phosphorus slag pavement brick and a making method thereof. The autoclaved yellow phosphorus slag pavement brick is made of yellow phosphorus slag powder, granular yellow phosphorus slag, quicklime powder and phosphogypsum. The making method comprises the steps of: grinding the dried yellow phosphorus slag into powder; then mixing the granular yellow phosphorus slag with the quicklime powder and the phosphogypsum, adding water, stirring and uniformly mixing; making a brick blank body; autoclaving to make the autoclaved yellow phosphorus slag pavement brick. The autoclaved yellow phosphorus slag pavement brick disclosed by the invention is superior to a common pavement brick product, and is simple in ingredients so that the input of types of raw materials is reduced; yellow phosphorus slag with different finenesses is matched to be used as a compound exciting agent, thus an unexpected effect is achieved; in a making process, a better exciting condition is provided, the production process is easy to control, and the product quality is more stable; in a case where no cement is used, the strength is enabled to reach the use requirement of the pavement brick, the production cost is lowered, and the yellow phosphorus slag resources are effectively utilized; although the consumption of the phosphogypsum is reduced, the problem that an autoclaved phosphorus slag brick is not suitable for pavement building is solved.

Description

A kind of steam pressure yellow phosphorus furnace slag pavior brick and preparation method thereof
Technical field
The present invention relates to building material field, relate in particular to a kind of steam pressure yellow phosphorus furnace slag pavior brick and preparation method thereof.
Background technology
As the intermediates of thermal phosphoric acid, the demand of yellow phosphorus grows with each passing day.Accordingly, the yellow phosphorus furnace slag producing in phosphorus production process also increases thereupon.Yellow Phosphorous Slag be in phosphorus production process by phosphatic rock, quartz, coke in electric arc furnace, with 1600 ℃ of left and right high melts, there is following reaction and the waste residue of discharging, its chief component is CasiO 3:
2Ca 3(PO 4) 2+6SiO 2+10C→6CasiO 3+10CO↑+P 4
At present, domestic every production 1t yellow phosphorus will produce 8~10t yellow phosphorus furnace slag.Due to discharging without controlling of yellow phosphorus furnace slag, very easily the atmosphere of periphery, water, soil and ecotope are caused to expendable pollution.At present domestic very low to the effective rate of utilization of yellow phosphorus furnace slag.
According to incompletely statistics, more than the every annual emissions of the phosphogypsum slag of China has reached 4,000 ten thousand t, and utilization ratio is only 4.1%-4.5%.At present, domestic phosphorous chemical industry enterprise has produced a large amount of phosphogypsums in Wet-process Phosphoric Acid Production process, and environment has been caused to detrimentally affect.How effectively to process phosphogypsum slag and become the difficult problem that phosphorous chemical industry enterprise faces.
Pavior brick, refers to a kind of pavement, is mainly with cement, stone, sand is done raw material, through processing, vibration pressurization or other moulding processs, makes, for laying the concrete road surface of urban road walkway, city square etc. and the piece of ground surface works, plate etc., higher to the requirement of strength of brick.In the prior art, common pavior brick is to take the concrete road pavement brick that cement is main raw material, because pavior brick consumption is very large, and higher to requirement of strength, so its production cost is higher.Yet, in the prior art, although it is lower to take the autoclaved brick cost that phosphogypsum and/or phosphorus slag make as main raw material, is all unsuitable for road surface and builds by laying bricks or stones.
As disclosed a kind of autoclaved phosphogypsum brick of CN101684675B and preparation method thereof, it is to be obtained by the raw material preparation of following weight part: phosphogypsum 60-80 part, in and properties-correcting agent 3.9-7.8 part, active admixture 15-30 part, cementing aggregate 1-2 part, exciting agent 0.1-0.2 part, water 10-15 part, in described, be carbide slag or lime mud with properties-correcting agent, described active fusion material is that zinc is smelted any one or a few in grain slag, the coal-fired slag of fluidizing furnace, the coal-fired slag of chain grate furnace, described cementing aggregate is building sand, and described exciting agent is saltcake or Sodium sulfate anhydrous.min(99).The weak point of this scheme is, adopts phosphogypsum as main raw material, fluorochemical wherein, free phosphoric acid, P 2o 5, the impurity such as phosphoric acid salt easily causes environmental pollution; Adopt saltcake or Sodium sulfate anhydrous.min(99) as exciting agent, stimulation effect is not ideal enough, and has improved production cost; The autoclaved phosphogypsum brick intensity making only reaches 15~30MPa, cannot meet the actual use needs of pavior brick.Disclosed autoclaved phosphogypsum brick of CN101519896B and preparation method thereof and for example, by weight proportion, be dihydrate gypsum 40-70%, phosphorus slag powder or cement 15-45%, lime 2-6%, the material of aggregate 10-25% adds water and is stirred to moisture 8~10%, make blank and send into the mould of automatic hydraulic brick molding press and be pressed into adobe, through the saturation steam maintenance of 0.8~1.3MPA, form; Described consolidating material is phosphorus slag powder or cement; Described aggregate is that particle is at 1~5mm, containing SiO 2the sand of >40%, aggregate chips or slag.The deficiency of this technical scheme is, dihydrate gypsum proportion in raw material is larger, be suitable for building wall and be unsuitable for road surface building by laying bricks or stones, because its ultimate compression strength is not high enough and water content can change and produces larger volume change, for road surface, build by laying bricks or stones and may cause pavement cracking.Visible, steam pressure phosphorus slag brick is not suitable for road surface and builds by laying bricks or stones.
Summary of the invention
The object of the present invention is to provide a kind of steam pressure yellow phosphorus furnace slag pavior brick and preparation method thereof, solved yellow phosphorus furnace slag effective rate of utilization problem low, big for environment pollution in prior art, and common phosphorus slag brick intensity is not high, cost is high, be unsuitable for the problem that build by laying bricks or stones on road surface.
A steam pressure yellow phosphorus furnace slag pavior brick, is made by yellow phosphorus furnace slag powder or granule yellow phosphorus furnace slag, calcium lime powder, phosphogypsum, and the mass percent of described raw material is:
Yellow phosphorus furnace ground-slag 30%~60%;
Granular yellow phosphorus furnace slag 20%~55%;
Calcium lime powder 0.5%~5%;
Phosphogypsum 5%~20%.
Further, the mass percent of described raw material is:
Yellow phosphorus furnace ground-slag 40%~50%;
Granular yellow phosphorus furnace slag 30%~45%;
Calcium lime powder 2%~5%;
Phosphogypsum 10%~15%.
Further, the mass percent of described raw material is:
Yellow phosphorus furnace ground-slag 45%;
Granular yellow phosphorus furnace slag 40%;
Calcium lime powder 3%;
Phosphogypsum 12%.
Described yellow phosphorus furnace slag is Water Quenching Slag, its P 2o 5content≤4.5%.
The fineness of described Yellow phosphorus furnace ground-slag is 200 orders, sieving rate >=90%.
The fineness of described granular yellow phosphorus furnace slag is at 1.0~5.0mm.
Effective CaO content >=50% of described calcium lime powder, fineness is 200 orders, sieving rate >=75%.
P in described phosphogypsum 2o 5content≤3.5%, water content is 10~12%.
The making method of above-mentioned steam pressure yellow phosphorus furnace slag pavior brick, is characterized in that: by yellow phosphorus furnace slag powder or granule yellow phosphorus furnace slag, calcium lime powder, phosphogypsum, made in accordance with the following methods:
(1) dry yellow phosphorus furnace slag is ground to form to powder, obtain Yellow phosphorus furnace ground-slag;
(2) Yellow phosphorus furnace ground-slag step (1) being obtained and granular yellow phosphorus furnace slag and calcium lime powder and phosphogypsum are prepared burden by mass percentage, obtain mixed dry material;
(3), after mixed dry material step (2) being obtained adds water and is uniformly mixed, obtain water content and be 7%~10% mixture;
(4) utilize brick press that step (3) is obtained to mixture and make adobe body;
(5) by the maintenance of 1.55~1.65MPa saturation steam, make finished product.
Beneficial effect of the present invention:
Compared with prior art, steam pressure yellow phosphorus furnace slag pavior brick of the present invention is better than common pavior brick product, and its composition is simple, has reduced the input of raw material type, adopts the yellow phosphorus furnace slag collocation of different fineness to be used as compound activator, has obtained beyond thought effect; In making processes, by the arrangement of making step, provide good shooting conditions, and production process is easy to control, quality product is comparatively stable; In the situation that not using cement, both proof strength had reached the service requirements of pavior brick, had reduced production cost, had effectively utilized again yellow phosphorus furnace slag resource, had avoided the disadvantageous effect of yellow phosphorus furnace slag to ecotope; Although reduced the consumption of phosphogypsum, solved common steam pressure phosphorus slag brick and be unsuitable for the problem as pavior brick simultaneously.The pavior brick that adopts the present invention to produce, ultimate compression strength can reach 30~65MPa, and folding strength is at 7.0~20.0MPa, fastness to rubbing >=1.2, water-intake rate≤10%, is applicable to main construction and decorative engineering in highway engineering and public works.
The main component of yellow phosphorus furnace slag is CaO and SiO 2, both total contents, on average more than 90%, also have a small amount of TiO in addition 2, Fe 2o 3, P 2o 5, MgO, F, K 2o and Na 2o etc.Applicant after years of research and found that, the Yellow phosphorus furnace ground-slag of powdery and granular yellow phosphorus furnace slag have potential activator effect, and meaning is the effect that yellow phosphorus furnace slag that fineness acquires a certain degree can play exciting agent.The present invention's yellow phosphorus furnace slag used is Water Quenching Slag, its P 2o 5content≤4.5%, the fineness of Yellow phosphorus furnace ground-slag is 200 order sieving rate>=90%; The fineness of granular yellow phosphorus furnace slag is at 1.0~5.0mm; Effective CaO content>=50% of calcium lime powder, fineness is 200 orders, sieving rate>=75%; P in phosphogypsum 2o 5content≤3.5%, water content are 10~12%.For making the pavior brick of high compressive strength, established basic substance.
Embodiment
Below in conjunction with specific embodiment, technical scheme of the present invention is described.The following stated is preferred embodiment of the present invention, can be used for explaining and supporting the present invention, but the present invention is not done to any pro forma restriction, any technical solution of the present invention content that do not depart from, and according to simple modification, equivalent variations and modification that technical spirit of the present invention is done following examples, all still belong in the scope of technical solution of the present invention.
Embodiment 1
By 2000 bulge test amounts, carry out raw material preparation, Yellow phosphorus furnace ground-slag 3600kg, granular yellow phosphorus furnace slag 1200kg, calcium lime powder 180kg, phosphogypsum 1020kg.
First dry yellow phosphorus furnace slag is ground to form to powdery; Again Yellow phosphorus furnace ground-slag and granular yellow phosphorus furnace slag and calcium lime powder and phosphogypsum are carried out to even batching in proportion; Add again water and be uniformly mixed, control its water content 7%; Utilize brick press to make adobe body; By the maintenance of 1.55MPa saturation steam, make finished product.
Finished product detection result:
Ultimate compression strength: 64.7MPa;
Folding strength: 20.8MPa;
Fastness to rubbing: 1.5;
Water-intake rate: 6.9%.
Embodiment 2
By 2000 bulge test amounts, carry out raw material preparation, Yellow phosphorus furnace ground-slag 1800kg, granular yellow phosphorus furnace slag 3300kg, calcium lime powder 130kg, phosphogypsum 770kg.
First dry yellow phosphorus furnace slag is ground to form to powdery; Again Yellow phosphorus furnace ground-slag and granular yellow phosphorus furnace slag and calcium lime powder and phosphogypsum are carried out to even batching in proportion; Add again water and be uniformly mixed, control its water content 8%; Utilize brick press to make adobe body; By the maintenance of 1.60MPa saturation steam, make finished product.
Finished product detection result:
Ultimate compression strength: 55.3MPa;
Folding strength: 17.8MPa;
Fastness to rubbing: 1.2;
Water-intake rate: 6.9%.
Embodiment 3
By 2000 bulge test amounts, carry out raw material preparation, Yellow phosphorus furnace ground-slag 2400kg, granular yellow phosphorus furnace slag 3000kg, calcium lime powder 100kg, phosphogypsum 500kg.
First dry yellow phosphorus furnace slag is ground to form to powdery; Again Yellow phosphorus furnace ground-slag and granular yellow phosphorus furnace slag and calcium lime powder and phosphogypsum are carried out to even batching in proportion; Add again water and be uniformly mixed, control its water content 10%; Utilize brick press to make adobe body; By the maintenance of 1.55MPa saturation steam, make finished product.
Finished product detection result:
Ultimate compression strength: 53.9MPa;
Folding strength: 9.2MPa;
Fastness to rubbing: 1.3;
Water-intake rate: 9.7%.
Embodiment 4
Take raw material, the mass percent of described raw material is: Yellow phosphorus furnace ground-slag 30%; Granular yellow phosphorus furnace slag 55%; Calcium lime powder 5%; Phosphogypsum 10%.Yellow phosphorus furnace slag is Water Quenching Slag, its P 2o 5content≤4.5%.The fineness of Yellow phosphorus furnace ground-slag is 200 orders, sieving rate >=90%.The fineness of granular yellow phosphorus furnace slag is 1.0.Effective CaO content >=50% of calcium lime powder, fineness is 200 orders, sieving rate >=75%.P in phosphogypsum 2o 5content≤3.5%, water content is 10%.Method for making is as follows:
(1) dry yellow phosphorus furnace slag is ground to form to powder, obtain Yellow phosphorus furnace ground-slag;
(2) Yellow phosphorus furnace ground-slag step (1) being obtained and granular yellow phosphorus furnace slag and calcium lime powder and phosphogypsum are prepared burden by mass percentage, obtain mixed dry material;
(3), after mixed dry material step (2) being obtained adds water and is uniformly mixed, obtain water content and be 9% mixture;
(4) utilize brick press that step (3) is obtained to mixture and make adobe body;
(5) by the maintenance of 1.65MPa saturation steam, make finished product.
Embodiment 5
Take raw material, the mass percent of described raw material is: Yellow phosphorus furnace ground-slag 60%; Granular yellow phosphorus furnace slag 20%; Calcium lime powder 0.5%; Phosphogypsum 19.5%.Yellow phosphorus furnace slag is Water Quenching Slag, its P 2o 5content≤4.5%.The fineness of Yellow phosphorus furnace ground-slag is 200 orders, sieving rate >=90%.The fineness of granular yellow phosphorus furnace slag is at 2.0mm.Effective CaO content >=50% of calcium lime powder, fineness is 200 orders, sieving rate >=75%.P in phosphogypsum 2o 5content≤3.5%, water content is 11%.Method for making is as follows:
(1) dry yellow phosphorus furnace slag is ground to form to powder, obtain Yellow phosphorus furnace ground-slag;
(2) Yellow phosphorus furnace ground-slag step (1) being obtained and granular yellow phosphorus furnace slag and calcium lime powder and phosphogypsum are prepared burden by mass percentage, obtain mixed dry material;
(3), after mixed dry material step (2) being obtained adds water and is uniformly mixed, obtain water content and be 8% mixture;
(4) utilize brick press that step (3) is obtained to mixture and make adobe body;
(5) by the maintenance of 1.60MPa saturation steam, make finished product.
Embodiment 6
Take raw material, the mass percent of described raw material is: Yellow phosphorus furnace ground-slag 60%; Granular yellow phosphorus furnace slag 30%; Calcium lime powder 5%; Phosphogypsum 5%.Yellow phosphorus furnace slag is Water Quenching Slag, its P 2o 5content≤4.5%.The fineness of Yellow phosphorus furnace ground-slag is 200 orders, sieving rate >=90%.The fineness of granular yellow phosphorus furnace slag is at 3.0mm.Effective CaO content >=50% of calcium lime powder, fineness is 200 orders, sieving rate >=75%.P in phosphogypsum 2o 5content≤3.5%, water content is 12%.Method for making is as follows:
(1) dry yellow phosphorus furnace slag is ground to form to powder, obtain Yellow phosphorus furnace ground-slag;
(2) Yellow phosphorus furnace ground-slag step (1) being obtained and granular yellow phosphorus furnace slag and calcium lime powder and phosphogypsum are prepared burden by mass percentage, obtain mixed dry material;
(3), after mixed dry material step (2) being obtained adds water and is uniformly mixed, obtain water content and be 7% mixture;
(4) utilize brick press that step (3) is obtained to mixture and make adobe body;
(5) by the maintenance of 1.55MPa saturation steam, make finished product.
Embodiment 7
Take raw material, the mass percent of described raw material is: Yellow phosphorus furnace ground-slag 40%; Granular yellow phosphorus furnace slag 45%; Calcium lime powder 2%; Phosphogypsum 13%.Yellow phosphorus furnace slag is Water Quenching Slag, its P 2o 5content≤4.5%.The fineness of Yellow phosphorus furnace ground-slag is 200 orders, sieving rate >=90%.The fineness of granular yellow phosphorus furnace slag is at 4.0mm.Effective CaO content >=50% of calcium lime powder, fineness is 200 orders, sieving rate >=75%.P in phosphogypsum 2o 5content≤3.5%, water content is 10.5%.Method for making is as follows:
(1) dry yellow phosphorus furnace slag is ground to form to powder, obtain Yellow phosphorus furnace ground-slag;
(2) Yellow phosphorus furnace ground-slag step (1) being obtained and granular yellow phosphorus furnace slag and calcium lime powder and phosphogypsum are prepared burden by mass percentage, obtain mixed dry material;
(3), after mixed dry material step (2) being obtained adds water and is uniformly mixed, obtain water content and be 10% mixture;
(4) utilize brick press that step (3) is obtained to mixture and make adobe body;
(5) by the maintenance of 1.60MPa saturation steam, make finished product.
Embodiment 8
Take raw material, the mass percent of described raw material is: Yellow phosphorus furnace ground-slag 50%; Granular yellow phosphorus furnace slag 30%; Calcium lime powder 5%; Phosphogypsum 15%.Yellow phosphorus furnace slag is Water Quenching Slag, its P 2o 5content≤4.5%.The fineness of Yellow phosphorus furnace ground-slag is 200 orders, sieving rate >=90%.The fineness of granular yellow phosphorus furnace slag is at 5.0mm.Effective CaO content >=50% of calcium lime powder, fineness is 200 orders, sieving rate >=75%.P in phosphogypsum 2o 5content≤3.5%, water content is 11.5%.Method for making is as follows:
(1) dry yellow phosphorus furnace slag is ground to form to powder, obtain Yellow phosphorus furnace ground-slag;
(2) Yellow phosphorus furnace ground-slag step (1) being obtained and granular yellow phosphorus furnace slag and calcium lime powder and phosphogypsum are prepared burden by mass percentage, obtain mixed dry material;
(3), after mixed dry material step (2) being obtained adds water and is uniformly mixed, obtain water content and be 8% mixture;
(4) utilize brick press that step (3) is obtained to mixture and make adobe body;
(5) by the maintenance of 1.55MPa saturation steam, make finished product.
Embodiment 9
Take raw material, the mass percent of described raw material is: Yellow phosphorus furnace ground-slag 40%; Granular yellow phosphorus furnace slag 45%; Calcium lime powder 5%; Phosphogypsum 10%.Yellow phosphorus furnace slag is Water Quenching Slag, its P 2o 5content≤4.5%.The fineness of Yellow phosphorus furnace ground-slag is 200 orders, sieving rate >=90%.The fineness of granular yellow phosphorus furnace slag is at 3.0mm.Effective CaO content >=50% of calcium lime powder, fineness is 200 orders, sieving rate >=75%.P in phosphogypsum 2o 5content≤3.5%, water content is 10%.Method for making is as follows:
(1) dry yellow phosphorus furnace slag is ground to form to powder, obtain Yellow phosphorus furnace ground-slag;
(2) Yellow phosphorus furnace ground-slag step (1) being obtained and granular yellow phosphorus furnace slag and calcium lime powder and phosphogypsum are prepared burden by mass percentage, obtain mixed dry material;
(3), after mixed dry material step (2) being obtained adds water and is uniformly mixed, obtain water content and be 9% mixture;
(4) utilize brick press that step (3) is obtained to mixture and make adobe body;
(5) by the maintenance of 1.60MPa saturation steam, make finished product.
Embodiment 10
Take raw material, the mass percent of described raw material is: Yellow phosphorus furnace ground-slag 45%; Granular yellow phosphorus furnace slag 40%; Calcium lime powder 3%; Phosphogypsum 12%.Yellow phosphorus furnace slag is Water Quenching Slag, its P 2o 5content≤4.5%.The fineness of Yellow phosphorus furnace ground-slag is 200 orders, sieving rate >=90%.The fineness of granular yellow phosphorus furnace slag is at 2.0mm.Effective CaO content >=50% of calcium lime powder, fineness is 200 orders, sieving rate >=75%.P in phosphogypsum 2o 5content≤3.5%, water content is 12%.Method for making is as follows:
(1) dry yellow phosphorus furnace slag is ground to form to powder, obtain Yellow phosphorus furnace ground-slag;
(2) Yellow phosphorus furnace ground-slag step (1) being obtained and granular yellow phosphorus furnace slag and calcium lime powder and phosphogypsum are prepared burden by mass percentage, obtain mixed dry material;
(3), after mixed dry material step (2) being obtained adds water and is uniformly mixed, obtain water content and be 10% mixture;
(4) utilize brick press that step (3) is obtained to mixture and make adobe body;
(5) by the maintenance of 1.55MPa saturation steam, make finished product.
Randomly draw the made steam pressure yellow phosphorus furnace slag pavior brick of embodiment 1,2,3 as sample, detect respectively.The check of ultimate compression strength, folding strength, tests by the regulation of building material industry standard JC466 " appendix A " and " appendix B " (refilling member) respectively.Cut resistance test is carried out according to the regulation of the inorganic earth material cut resistance test of GB/T12988 < < method > >.The moisture content test, carries out according to requirements such as the equipment of JC446 standard code, test specimen quantity, testing sequence and result calculating.Detected result is as shown in table 1.
The detected result of table 1 steam pressure yellow phosphorus furnace slag of the present invention pavior brick

Claims (9)

1. a steam pressure yellow phosphorus furnace slag pavior brick, is characterized in that: by yellow phosphorus furnace slag powder or granule yellow phosphorus furnace slag, calcium lime powder, phosphogypsum, made, the mass percent of described raw material is:
Yellow phosphorus furnace ground-slag 30%~60%;
Granular yellow phosphorus furnace slag 20%~55%;
Calcium lime powder 0.5%~5%;
Phosphogypsum 5%~20%.
2. a kind of steam pressure yellow phosphorus furnace slag pavior brick according to claim 1, is characterized in that: the mass percent of described raw material is:
Yellow phosphorus furnace ground-slag 40%~50%;
Granular yellow phosphorus furnace slag 30%~45%;
Calcium lime powder 2%~5%;
Phosphogypsum 10%~15%.
3. a kind of steam pressure yellow phosphorus furnace slag pavior brick according to claim 1, is characterized in that: the mass percent of described raw material is:
Yellow phosphorus furnace ground-slag 45%;
Granular yellow phosphorus furnace slag 40%;
Calcium lime powder 3%;
Phosphogypsum 12%.
4. a kind of steam pressure yellow phosphorus furnace slag pavior brick according to claim 1, is characterized in that: described yellow phosphorus furnace slag is Water Quenching Slag, its P 2o 5content≤4.5%.
5. a kind of steam pressure yellow phosphorus furnace slag pavior brick according to claim 1, is characterized in that: the fineness of described Yellow phosphorus furnace ground-slag is 200 orders, sieving rate >=90%.
6. a kind of steam pressure yellow phosphorus furnace slag pavior brick according to claim 1, is characterized in that: the fineness of described granular yellow phosphorus furnace slag is at 1.0~5.0mm.
7. a kind of steam pressure yellow phosphorus furnace slag pavior brick according to claim 1, is characterized in that: effective CaO content >=50% of described calcium lime powder, fineness is 200 orders, sieving rate >=75%.
8. a kind of steam pressure yellow phosphorus furnace slag pavior brick according to claim 1, is characterized in that: the P in described phosphogypsum 2o 5content≤3.5%, water content is 10~12%.
9. according to the making method of the arbitrary described a kind of steam pressure yellow phosphorus furnace slag pavior brick of claim 1~9, it is characterized in that: by yellow phosphorus furnace slag powder or granule yellow phosphorus furnace slag, calcium lime powder, phosphogypsum, made in accordance with the following methods:
(1) dry yellow phosphorus furnace slag is ground to form to powder, obtain Yellow phosphorus furnace ground-slag;
(2) Yellow phosphorus furnace ground-slag step (1) being obtained and granular yellow phosphorus furnace slag and calcium lime powder and phosphogypsum are prepared burden by mass percentage, obtain mixed dry material;
(3), after mixed dry material step (2) being obtained adds water and is uniformly mixed, obtain water content and be 7%~10% mixture;
(4) utilize brick press that step (3) is obtained to mixture and make adobe body;
(5) by the maintenance of 1.55~1.65MPa saturation steam, make finished product.
CN201310533643.8A 2013-11-01 2013-11-01 Autoclaved yellow phosphorus slag pavement brick and making method thereof CN103626462B (en)

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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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CN107056208A (en) * 2017-03-29 2017-08-18 合肥天沃能源科技有限公司 One kind energy-conservation pavior brick and preparation method thereof
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CN104086149A (en) * 2014-07-16 2014-10-08 云南常青树化工有限公司 Preparation method for phosphogypsum baking-free brick
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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
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CN107056208A (en) * 2017-03-29 2017-08-18 合肥天沃能源科技有限公司 One kind energy-conservation pavior brick and preparation method thereof
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