CN104529399B - A kind of cinder - Google Patents
A kind of cinder Download PDFInfo
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- CN104529399B CN104529399B CN201410770008.6A CN201410770008A CN104529399B CN 104529399 B CN104529399 B CN 104529399B CN 201410770008 A CN201410770008 A CN 201410770008A CN 104529399 B CN104529399 B CN 104529399B
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/60—Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes
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Abstract
The invention discloses a kind of cinder, it is made up of following component: SiO2 50‑65%、Al2O3 17‑24%、CaO 5‑7%、Fe2O30.01‑0.5%、SO3 0.01‑3.5%、K2O 1‑3%、TiO2 0.01‑0.4%、MgO 0.5‑4.0%、Na2O 0.5‑3.5%、P2O5 0.3‑1%、BaO 0.1‑0.3%、F 0.1‑0.3%、V2O5 0.1‑0.05%、MnO 0.1‑0.3%、SrO 0.01‑0.3%、Cr2O3 0.01‑0.05%、ZrO2 0.01‑0.1%、NiO 0.01‑0.05%、CuO0.01‑0.03%、ZnO0.01‑0.03%、As2O30.01‑0.03%、Rb2O0.005‑0.01%.When this cinder uses as the raw material of Imitation Rock Porcelain Tiles processed, consumption can account for 60 70%, and the Imitation Rock Porcelain Tiles whiteness prepared is high, High anti bending strength.
Description
Technical field
The present invention relates to building material technical field, particularly to the cinder that a kind of Imitation Rock Porcelain Tiles processed is special.
Background technology
China's building trade is the hugest to the demand of Imitation Rock Porcelain Tiles, and conventional Imitation Rock Porcelain Tiles needs sand class non-plastic raw material, sand class non-plastic raw material to be all to obtain from mountain mostly, need to divest epidermis vegetation and massif top layer viscosity loess, effect on environment is very big, damages National Forest, causes soil erosion simultaneously.
On the other hand, industry cinder yield is the biggest, although some environmental protection recycling approach, such as: being added into processing cement, system municipal administration brick etc., but addition is few, usage amount is few, far from can digest the cinder amount produced every day, and value-added content of product is low.
The most useful cinder introduces and uses as Imitation Rock Porcelain Tiles raw material, but the quality of product is low, the regular quality detection project of Imitation Rock Porcelain Tiles product: the various aspects of performance such as whiteness, rupture strength, water absorption rate, does not all reach the index request of existing product.And, the usage amount of cinder is less, the highest to the recovery utilization rate of cinder.
Specifically, CN101875555B is disclosed " energy-saving sintering heat-reserving brick ", and including the cinder of 5-20%, described cinder is Boiler Cinder Surveying.The usage amount of cinder is less, the highest to the recovery utilization rate of cinder.
In terms of cinder process: prior art is all that cinder and other mud, sand class raw material are added ball mill, carry out except ferrum after ball milling pulping, owing to slurry containing mud, slurry fluidity is poor, and viscosity is big, so except ferrum is the most thorough, cause last finished product whiteness out the lowest, and owing to there being the existence of mud, grinding efficiency is low, expend more electricity.Further, the universal calcium content of existing cinder the highest (calcium content reaches about 5-6%), hard-to-sinter, the porosity causing brick finished product after burning till is high, thus causing the finished product water absorption rate higher (water absorption rate reaches about 0.5%) burnt till, rupture strength is than relatively low (rupture strength only has about 1400N).
Such as: patent CN1223545C disclosed " fired brick utilizing regenerated papermaking mud to prepare and preparation method thereof ", the method comprises the following steps: a) with antibacterial, regenerated papermaking mud is carried out pretreatment；B) mixing 70-85 parts by weight clay, 10-25 weight portion pretreated regenerated papermaking mud and 5-10 weight portion cinder；C) gained mixture is extruded into billet, cuts into adobe, after drying, with the sintering temperature of 600-700 DEG C, adobe is sintered.Clay, in preparation process, is first utilized antibacterial to carry out pretreatment, but cinder is not carried out pretreatment, cause: 1, fired brick product whiteness is relatively low by above-mentioned fired brick；2, the rupture strength of fired brick product is relatively low, and meansigma methods is 2.26 Mpa, monolithic minima 1.28Mpa；3, the process power consumption of mixed clay, mud and cinder is big, relatively costly.Additionally, the usage amount of cinder is less, only account for the weight portion of 5-10, the highest to the recovery utilization rate of cinder.
Summary of the invention
The technical problem to be solved is, it is provided that a kind of cinder, and its Imitation Rock Porcelain Tiles whiteness prepared is high, High anti bending strength, and recovery utilization rate is high, save the energy, reduces cost.
For reaching above-mentioned technique effect, the invention provides a kind of cinder, be exclusively used in Imitation Rock Porcelain Tiles, it is made up of following component by weight percentage:
SiO2 50-65%、Al2O3
17-24 %、CaO 5-7
%、Fe2O30.01-0.5%、SO3 0.01-3.5%、K2O
1-3 %、TiO2 0.01-0.4 %、MgO 0.5-4.0 %、Na2O 0.5-3.5 %、P2O50.3-1%、BaO
0.1-0.3%、F 0.1-0.3%、V2O50.1-0.05%、MnO0.1-0.3%、SrO 0.01-0.3%、Cr2O3 0.01-0.05%、ZrO2 0.01-0.1%、NiO 0.01-0.05%、CuO0.01-0.03%、ZnO0.01-0.03%、As2O30.01-0.03%、Rb2O0.005-0.01%。
As the improvement of such scheme, cinder is made up of following component by weight percentage:
SiO2 60-64%、Al2O3
22-24 %、CaO 5-7
%、Fe2O30.01-0.4%、SO3 2-3.5%、K2O
1-3 %、TiO2 0.01-0.1 %、MgO 0.5-1.5 %、Na2O 0.5-1.5 %、P2O50.3-1%、BaO
0.1-0.3%、F 0.1-0.3%、V2O50.1-0.05%、MnO0.1-0.3%、SrO 0.1-0.3%、Cr2O3 0.01-0.05%、ZrO2 0.01-0.05%、NiO 0.01-0.05%、CuO0.01-0.03%、ZnO0.01-0.03%、As2O30.01-0.03%、Rb2O0.005-0.01%。
As the improvement of such scheme, described cinder includes through the pretreatment of following steps, described step:
(1) cinder raw material is sieved；
(2) cinder after sieving carries out ferrum recovery by magnetic plant；
(3) cinder after magnetic separation being added water, and through ball-milling treatment, obtain the first mixed material, wherein, cinder is 1.8-2.2:0.8-1.2 with the amount ratio of water, and the proportion of the first mixed material is 1.0-2.0, water content is 25-45%, flow velocity is 10-20s；
(4) cinder after ball milling is initially charged water, carry out iron powder recovery by equipment for removing ferric ion again, obtain the second mixed material, wherein, cinder is 1.5-2.5:0.8-1.2 with the amount ratio of water, and the proportion of the second mixed material is 1.0-2.0, water content is 25-50%, flow velocity is 8-20s；
(5) by adding bleach except the cinder after ferrum, carrying out settling and bleaching by Sedimentation tank, wherein, cinder is 1:0.0005-0.02 with the amount ratio of bleach；
(6) cinder after sedimentation is carried out filter pressing process by pressure filter；
(7) cinder after filter pressing is dried, obtains cinder finished product；
The TiO of described cinder finished product2Content ＜ 0.5%, V2O5Content ＜ 0.05%, Fe content ＜ 0.5%.
As the improvement of such scheme, in step (1), described cinder raw material passes through 6-10 mesh sieve.
In step (3), the proportion of described first mixed material is 1.4-1.6, flow velocity is 10-25s, fineness is that 80-120 mesh sieve tails over 0-10G.
In step (5), except the bleaching time of the cinder after ferrum is 10-60 minute, the Fe content ＜ 0.5% of the cinder after bleaching.Described bleach selects the mixture of 0.05-2% soda and 0.05-2% sodium hydrosulfite, or the sulphuric acid of 0.05-2%, and the concentration of sulphuric acid is 10-30%.
In step (6), through the water content ＜ 50% of the cinder that filter pressing processes.
In step (7), through the water content ＜ 20% of the cinder of dried.
As the improvement of such scheme, described ball-milling treatment process is additionally added raw Talcum, and the addition of described raw Talcum is 1-20%.Or, described finished product is additionally added raw Talcum, and the addition of described raw Talcum is 1-20%.
Enforcement there is advantages that
The present invention provides a kind of cinder, and when this cinder uses as the raw material of Imitation Rock Porcelain Tiles processed, consumption can account for 60-70%, reaches highly to utilize the purpose of recovery cinder.Wherein, the TiO of cinder2Content ＜ 0.5%, V2O5Content ＜ 0.05%, Fe content ＜ 0.5%, can be greatly improved whiteness and the rupture strength of finished product.
Above-mentioned cinder obtains through pretreatment, specifically before brickmaking, first cinder is carried out single ball milling, ball milling reduces or removes the metals such as ferrum, titanium, vanadium after certain fineness individually, owing to being the cinder individually burnt, slurry does not has between granule viscosity, so pulp flow performance is good, metal can be removed the most thoroughly, be greatly improved the whiteness of finished product.And owing to slurry is not have sticking, can greatly improve grinding efficiency, reduce power consumption, reduce cost.
The present invention adds raw Talcum during ball-milling treatment or in finished product, and raw MgO contained by Talcum can form special microcosmic crystal structure with Al, the Si in the CaO in cinder and pottery convenient source so that Imitation Rock Porcelain Tiles finished product forms a kind of new CaO-MgO-Al2O3-SiO2Structure, thus improve the various aspects of performance index of Imitation Rock Porcelain Tiles finished product.This CaO-MgO-Al2O3-SiO2Structure overcomes calcium content height and causes the problem of the porosity, improves the whiteness of finished product, reduces the water absorption rate of finished product, improves rupture strength.
It is also possible to the metals such as the ferrum of removing, titanium, vanadium are reclaimed, economize on resources；Whole processing procedure, without solid discharge, meets the requirement of environmental protection and energy saving.
Accompanying drawing explanation
Fig. 1 is the flow chart of the pretreatment process of cinder of the present invention；
Fig. 2 is the schematic diagram of the pretreatment system of cinder of the present invention.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing, the present invention is described in further detail.
Existing cinder contains substantial amounts of metal, the present invention seeks to reduce or remove the harmful components such as metallic element therein, and on the one hand the presence of which can be substantially reduced the whiteness of product, can cause substantial amounts of bubble simultaneously.
To this end, the invention provides a kind of cinder, described cinder is made up of following component by weight percentage:
SiO2 50-65%、Al2O3
17-24 %、CaO 5-7
%、Fe2O30.01-0.5%、SO3 0.01-3.5%、K2O
1-3 %、TiO2 0.01-0.4 %、MgO 0.5-4.0 %、Na2O 0.5-3.5 %、P2O50.3-1%、BaO
0.1-0.3%、F 0.1-0.3%、V2O50.1-0.05%、MnO0.1-0.3%、SrO 0.01-0.3%、Cr2O3 0.01-0.05%、ZrO2 0.01-0.1%、NiO 0.01-0.05%、CuO0.01-0.03%、ZnO0.01-0.03%、As2O30.01-0.03%、Rb2O0.005-0.01%。
More preferably, described cinder is made up of following component by weight percentage:
SiO2 60-64%、Al2O3
22-24 %、CaO 5-7
%、Fe2O30.01-0.4%、SO3 2-3.5%、K2O
1-3 %、TiO2 0.01-0.1 %、MgO 0.5-1.5 %、Na2O 0.5-1.5 %、P2O50.3-1%、BaO
0.1-0.3%、F 0.1-0.3%、V2O50.1-0.05%、MnO0.1-0.3%、SrO 0.1-0.3%、Cr2O3 0.01-0.05%、ZrO2 0.01-0.05%、NiO 0.01-0.05%、CuO0.01-0.03%、ZnO0.01-0.03%、As2O30.01-0.03%、Rb2O0.005-0.01%。
When this cinder uses as the raw material of Imitation Rock Porcelain Tiles processed, consumption can account for 60-70%, reaches highly to utilize the purpose reclaiming cinder.Wherein, the TiO of cinder2Content ＜ 0.5%, V2O5Content ＜ 0.05%, Fe content ＜ 0.5%, can be greatly improved whiteness and the rupture strength of finished product.
As depicted in figs. 1 and 2, described cinder includes through the pretreatment of following steps, described step:
S101, cinder raw material is sieved.
Described cinder raw material is preferably by 6-10 mesh sieve.More preferably, described cinder raw material passes through 8 mesh sieve.
Sieving, 8 mesh cinders enter next process magnetic plant, and 8 mesh cinders are crushed by disintegrating machine, then enter back into next process magnetic plant.
Due in cinder more than 80% particle size distribution below 8 mesh, so by 8 mesh sieve, ball milling is carried out after the coarse fodder accounted on least a portion of sieve is individually crushed, can be in next ball milling operation, reduce the ratio of major diameter ball milling stone, increase the specific surface area ground, thus it is greatly improved grinding efficiency, reduce the loss of ball milling stone simultaneously.
S102, will sieve after cinder carry out ferrum recovery by magnetic plant.
Cinder after sieving first carries out preliminary ferrum by magnetic plant and reclaims.Magnetic plant, according to the magnetic characteristic of material, will contain magnetic material (ferrum) and separate from other materials.
S103, the cinder after magnetic separation being added water, and through ball-milling treatment, obtain the first mixed material, wherein, cinder is 1.8-2.2:0.8-1.2 with the amount ratio of water.Going out the material index that ball milling operation need to detect is: the proportion of the first mixed material is 1.0-2.0, water content is 25-45%, flow velocity is 10-20s.
Preferably, cinder is 2-2.1:1-1.1 with the amount ratio of water, and the proportion of the first mixed material is 1.4-1.6, flow velocity is 10-25s, fineness is that 80-120 mesh sieve tails over 0-10G.
More preferably, cinder is 2:1 with the amount ratio of water, and the proportion of the first mixed material is 1.5, flow velocity is 15-20s, fineness is that 100 mesh sieves tail over 0-10G.
In mechanical milling process, needing to ensure that cinder is 1.8-2.2:0.8-1.2 with the amount ratio of water, this water yield mainly ensures that mechanical milling process obtains higher grinding efficiency.Water is too many, and the probability of ball milling stone grinding material diminishes；Very little, the viscosity between material is too big, causes ball milling stone to diminish with the grinding probability of material equally for water.
S104, the cinder after ball milling is initially charged water, iron powder recovery is carried out again by equipment for removing ferric ion, obtain the second mixed material, wherein, the amount ratio of cinder and water is 1.5-2.5:0.8-1.2, goes out the material index that iron removal step need to detect and is: the proportion of the second mixed material is 1.0-2.0, water content is 25-50%, flow velocity is 8-20s.
Preferably, the amount ratio of cinder and water is 1.8-2.2:1-1.1, goes out the material index that iron removal step need to detect and is: the proportion of the second mixed material is 1.2-1.8, water content is 30-40%, flow velocity is 10-15s.
More preferably, the amount ratio of cinder and water is 1.9-2.0:1-1.1, goes out the material index that iron removal step need to detect and is: the proportion of the second mixed material is 1.4-1.6, water content is 30-40%, flow velocity is 10-15s.
The present invention needs to add water before except ferrum, and cinder is 1.5-2.5:0.8-1.2 with the amount ratio of water, it is ensured that slurry has enough mobility, it is simple to the later stage removes ferrum.If it is too many to add water, slurry fluidity is not enough, and de-ferrous effect is bad；Add water too many, increase again the difficulty of later stage dewatering process.
S105, will except after ferrum cinder add bleach, carrying out settling and bleaching by Sedimentation tank, wherein, cinder is 1:0.0005-0.02 with the amount ratio of bleach, except the bleaching time of the cinder after ferrum is 10-60 minute, the Fe content ＜ 0.5% of the cinder after bleaching.
Preferably, cinder is 1:0.001-0.01 with the amount ratio of bleach.More preferably, cinder is 1:0.001,1:0.002,1:0.003,1:0.004,1:0.005,1:0.006,1:0.007,1:0.008,1:0.009,1:0.01 with the amount ratio of bleach, but is not limited to this.
Described bleach preferably selects the mixture of 0.05-2% soda and 0.05-2% sodium hydrosulfite, or the sulphuric acid of 0.05-2%, and the concentration of sulphuric acid is 10-30%.More preferably, described bleach preferably selects the mixture of 0.1-1% soda and 0.1-1% sodium hydrosulfite, or the sulphuric acid of 0.1-1%, and the concentration of sulphuric acid is 15-25%.
It should be noted that the amount ratio of cinder and bleach refers to the amount ratio of cinder siccative and bleach, say, that the consumption of bleach is the 0.05-2% of cinder siccative.
The scheme of existing use dilute sulfuric acid pickling mainly can use when Kaolin etc Raw material processing, and does not the most use in feldspar Raw material processing of the present invention.The present invention adds dilute sulfuric acid innovatively, and the reactive metal oxide being not dissolved in water in cinder mainly becomes the sulfate being dissolved in water, and above-mentioned metal departs from cinder along with water, reaches to remove further the purpose of metallic element in cinder.
The bleaching regimen of existing use sodium hydrosulfite, mainly can use in printing and dyeing industry, and the most not use in feldspar Raw material processing of the present invention.The present invention adds the mixture of soda and sodium hydrosulfite innovatively, mainly by the strong reducing property of sodium hydrosulfite, become to be dissolved in the lower valency metal ion of water by the reducing metal ions of high-valence state water-fast in cinder slurry, above-mentioned metal departs from cinder along with water, thus reaches to remove further the purpose of metallic element in cinder.
S106, the cinder after sedimentation is carried out filter pressing process by pressure filter, through the water content ＜ 50% of cinder of filter pressing process.
Cinder processes through filter pressing, removes excessive moisture.Above-mentioned excessive moisture can be stored by tank carry out further with, water can add in ball milling operation, it is also possible to before except ferrum add.So, the water recycling of whole preprocessing process, environmental protection and energy saving.
S107, the cinder after filter pressing is dried, through the water content ＜ 20% of the cinder of dried, obtains cinder finished product.The TiO of described cinder finished product2Content ＜ 0.5%, V2O5Content ＜ 0.05%, Fe content ＜ 0.5%.
Above-mentioned whole preprocessing process, without solid discharge, meets the requirement of environmental protection and energy saving.
Further, described ball-milling treatment process is additionally added raw Talcum, and the addition of described raw Talcum is 1-20%.Raw MgO contained by Talcum can form special microcosmic crystal structure with Al, the Si in the CaO in cinder and pottery convenient source so that Imitation Rock Porcelain Tiles finished product forms a kind of new CaO-MgO-Al2O3-SiO2Structure, thus improve the various aspects of performance index of Imitation Rock Porcelain Tiles finished product.This CaO-MgO-Al2O3-SiO2Structure overcomes calcium content height and causes the problem of the porosity, improves the whiteness of finished product, reduces the water absorption rate of finished product, improves rupture strength.
It should be noted that raw Talcum can also add in finished product, the addition of described raw Talcum is 1-20%.
The present invention is expanded on further below with specific embodiment
Embodiment 1
130g cinder raw material is crossed 8 mesh sieves；The 8 mesh cinders of 107g enter magnetic plant and carry out ferrum recovery, and the 8 mesh cinders of 23g are crushed by disintegrating machine, then enter back into magnetic plant and carry out ferrum recovery, and the ferrum of recovery is 30g；Cinder after 100g magnetic separation adds 50g water, through ball-milling treatment, obtain proportion be 1.0, water content be 25%, flow velocity be first mixed material of 10s；First mixed material of 150g is initially charged 80g water, then carries out iron powder recovery by equipment for removing ferric ion, obtain proportion be 1.0, water content be 25%, flow velocity be second mixed material of 8s, the iron powder of recovery is 5g；225g is added the mixture of 1g soda and 1g sodium hydrosulfite except the second mixed material after ferrum, carries out settling and bleaching by Sedimentation tank, overflow 48g water；Cinder after being settled by 179g carries out filter pressing process, filter pressing moisture content 40g by pressure filter；Finally being dried by the cinder of 139g, evaporate moisture content 28g, obtain 111g cinder finished product, the component composition of cinder finished product refers to table one.
Embodiment 2
130g cinder raw material is crossed 8 mesh sieves；The 8 mesh cinders of 107g enter magnetic plant and carry out ferrum recovery, and the 8 mesh cinders of 23g are crushed by disintegrating machine, then enter back into magnetic plant and carry out ferrum recovery, and the ferrum of recovery is 30g；Cinder after 100g magnetic separation adds 50g water, through ball-milling treatment, obtain proportion be 1.2, water content be 30%, flow velocity be first mixed material of 12s；First mixed material of 150g is initially charged 80g water, then carries out iron powder recovery by equipment for removing ferric ion, obtain proportion be 1.2, water content be 30%, flow velocity be second mixed material of 10s, the iron powder of recovery is 5g；Except the second mixed material after ferrum, 225g is added the sulphuric acid of 3g, and the concentration of sulphuric acid is 20%, carries out settling and bleaching by Sedimentation tank, overflow 48g water；Cinder after being settled by 180g carries out filter pressing process, filter pressing moisture content 40g by pressure filter；Finally being dried by the cinder of 140g, evaporate moisture content 28g, obtain 112g cinder finished product, the component composition of cinder finished product refers to table one.
Embodiment 3
130g cinder raw material is crossed 8 mesh sieves；The 8 mesh cinders of 107g enter magnetic plant and carry out ferrum recovery, and the 8 mesh cinders of 23g are crushed by disintegrating machine, then enter back into magnetic plant and carry out ferrum recovery, and the ferrum of recovery is 30g；Cinder after 100g magnetic separation adds 50g water and the raw Talcum of 10g, through ball-milling treatment, obtain proportion be 1.5, water content be 35%, flow velocity be first mixed material of 15s；First mixed material of 160g is initially charged 80g water, then carries out iron powder recovery by equipment for removing ferric ion, obtain proportion be 1.5, water content be 40%, flow velocity be second mixed material of 12s, the iron powder of recovery is 5g；235g is added the mixture of 1g soda and 2g sodium hydrosulfite except the second mixed material after ferrum, carries out settling and bleaching by Sedimentation tank, overflow 48g water；Cinder after being settled by 190g carries out filter pressing process, filter pressing moisture content 40g by pressure filter；Finally being dried by the cinder of 150g, evaporate moisture content 35g, obtain 115g cinder finished product, the component composition of cinder finished product refers to table one.
Embodiment 4
130g cinder raw material is crossed 8 mesh sieves；The 8 mesh cinders of 107g enter magnetic plant and carry out ferrum recovery, and the 8 mesh cinders of 23g are crushed by disintegrating machine, then enter back into magnetic plant and carry out ferrum recovery, and the ferrum of recovery is 30g；Cinder after 100g magnetic separation adds 50g water, through ball-milling treatment, obtain proportion be 1.8, water content be 40%, flow velocity be first mixed material of 16s；First mixed material of 150g is initially charged 80g water, then carries out iron powder recovery by equipment for removing ferric ion, obtain proportion be 1.6, water content be 42%, flow velocity be second mixed material of 15s, the iron powder of recovery is 5g；225g is added the mixture of 1g soda and 1g sodium hydrosulfite except the second mixed material after ferrum, carries out settling and bleaching by Sedimentation tank, overflow 48g water；Cinder after being settled by 179g carries out filter pressing process, filter pressing moisture content 40g by pressure filter；Finally being dried by the cinder of 139g, evaporate moisture content 28g, obtain 111g cinder finished product, the component composition of cinder finished product refers to table one.
Embodiment 5
130g cinder raw material is crossed 8 mesh sieves；The 8 mesh cinders of 107g enter magnetic plant and carry out ferrum recovery, and the 8 mesh cinders of 23g are crushed by disintegrating machine, then enter back into magnetic plant and carry out ferrum recovery, and the ferrum of recovery is 30g；Cinder after 100g magnetic separation adds 50g water, through ball-milling treatment, obtain proportion be 1.8, water content be 40%, flow velocity be first mixed material of 15s；First mixed material of 150g is initially charged 80g water, then carries out iron powder recovery by equipment for removing ferric ion, obtain proportion be 1.8, water content be 45%, flow velocity be second mixed material of 15s, the iron powder of recovery is 5g；Except the second mixed material after ferrum, 225g is added the sulphuric acid of 3g, and the concentration of sulphuric acid is 20%, carries out settling and bleaching by Sedimentation tank, overflow 48g water；Cinder after being settled by 180g carries out filter pressing process, filter pressing moisture content 40g by pressure filter；Finally being dried by the cinder of 140g, evaporate moisture content 28g, obtain 112g cinder finished product, the component composition of cinder finished product refers to table one.
Embodiment 6
130g cinder raw material is crossed 8 mesh sieves；The 8 mesh cinders of 107g enter magnetic plant and carry out ferrum recovery, and the 8 mesh cinders of 23g are crushed by disintegrating machine, then enter back into magnetic plant and carry out ferrum recovery, and the ferrum of recovery is 30g；Cinder after 100g magnetic separation adds 50g water and the raw Talcum of 10g, through ball-milling treatment, obtain proportion be 2.0, water content be 45%, flow velocity be first mixed material of 20s；First mixed material of 160g is initially charged 80g water, then carries out iron powder recovery by equipment for removing ferric ion, obtain proportion be 2.0, water content be 50%, flow velocity be second mixed material of 8-20s, the iron powder of recovery is 5g；235g is added the mixture of 1g soda and 2g sodium hydrosulfite except the second mixed material after ferrum, carries out settling and bleaching by Sedimentation tank, overflow 48g water；Cinder after being settled by 190g carries out filter pressing process, filter pressing moisture content 40g by pressure filter；Finally being dried by the cinder of 150g, evaporate moisture content 35g, obtain 115g cinder finished product, the component composition of cinder finished product refers to table one.
Reference examples 1
Undressed cinder waste material
Below the reference examples 1 of embodiment of the present invention 1-6 with prior art is analyzed, specific as follows:
(1) the cinder finished product, by embodiment 1-6 obtained does component analysis, result as shown in Table 1:
| Project | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Embodiment 6 |
| SiO2 | 63.0215 | 62.9827 | 62.4512 | 60.0000 | 63.9100 | 53.5412 |
| Al2O3 | 23.1122 | 22.9523 | 22.8473 | 22.1122 | 23.0000 | 23.8473 |
| CaO | 5.5247 | 5.7563 | 5.9565 | 4.0247 | 5.0783 | 6.9565 |
| Fe2O3 | 0.3000 | 0.2590 | 0.1592 | 0.0100 | 0.2280 | 0.3592 |
| SO3 | 2.5392 | 2.8944 | 3.0244 | 3.3392 | 2.6924 | 3.4244 |
| K2O | 1.9052 | 1.8028 | 1.9255 | 2.9052 | 1.8028 | 2.9255 |
| TiO2 | 0.0144 | 0.0153 | 0.0165 | 0.0124 | 0.0153 | 0.0165 |
| MgO | 1.1258 | 1.1082 | 1.2421 | 3.1258 | 1.1056 | 3.7421 |
| Na2O | 0.8821 | 0.7513 | 0.8475 | 2.8821 | 0.7527 | 3.3475 |
| P2O5 | 0.5938 | 0.5822 | 0.6241 | 0.6493 | 0.5425 | 0.6241 |
| BaO | 0.2566 | 0.2687 | 0.2752 | 0.2566 | 0.2687 | 0.2752 |
| F | 0.2247 | 0.2195 | 0.2056 | 0.2247 | 0.1899 | 0.2056 |
| V2O5 | 0.0495 | 0.0314 | 0.0404 | 0.0195 | 0.0314 | 0.0404 |
| MnO | 0.1591 | 0.1221 | 0.1358 | 0.1591 | 0.1221 | 0.1358 |
| SrO | 0.1284 | 0.1147 | 0.1059 | 0.1284 | 0.1247 | 0.3000 |
| Cr2O3 | 0.0425 | 0.0358 | 0.0249 | 0.0425 | 0.0358 | 0.0249 |
| ZrO2 | 0.0320 | 0.0314 | 0.0304 | 0.0320 | 0.0314 | 0.1000 |
| NiO | 0.0238 | 0.0216 | 0.0203 | 0.0238 | 0.0196 | 0.0403 |
| CuO | 0.0247 | 0.0159 | 0.0178 | 0.0127 | 0.0148 | 0.0278 |
| ZnO | 0.0195 | 0.0158 | 0.0182 | 0.0195 | 0.0125 | 0.0282 |
| As2O3 | 0.0133 | 0.0117 | 0.0247 | 0.0133 | 0.0120 | 0.0247 |
| Rb2O | 0.0070 | 0.0069 | 0.0065 | 0.0070 | 0.0095 | 0.0128 |
| Add up to | 100.0000 | 100.0000 | 100.0000 | 100.0000 | 100.0000 | 100.0000 |
The present invention can substantially reduce or remove the metals such as ferrum, titanium, vanadium, and non-ferrous metal content balance process before and after be presented herein below:
| TiO2% | V2O5% | Fe% | |
| Existing cinder | 1.0% | 0.15% | 5-7% |
| Cinder of the present invention | ＜ 0.5% | ＜ 0.05% | ＜ 0.5% |
(2) the Imitation Rock Porcelain Tiles finished product that the cinder of Imitation Rock Porcelain Tiles finished product and reference examples 1 that the cinder, by embodiment 1-6 obtained prepares is made does technical parameter detection, obtains result as follows:
| Project | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Embodiment 6 | Reference examples 1 |
| Whiteness | 46 | 45 | 48 | 47 | 48 | 46 | 12 |
| Water absorption rate | 0.1% | 0.1% | 0.1% | 0.1% | 0.1% | 0.1% | 0.5% |
| Rupture strength | 1652N | 1687N | 1715N | 1735 N | 1672 N | 1707 N | 1400N |
In sum, the present invention provides a kind of cinder, and when this cinder uses as the raw material of Imitation Rock Porcelain Tiles processed, consumption can account for 60-70%, reaches highly to utilize the purpose of recovery cinder.Wherein, the TiO of cinder2Content ＜ 0.5%, V2O5Content ＜ 0.05%, Fe content ＜ 0.5%, can be greatly improved whiteness and the rupture strength of finished product.
Above-mentioned cinder obtains through pretreatment, specifically before brickmaking, first cinder is carried out single ball milling, ball milling reduces or removes the metals such as ferrum, titanium, vanadium after certain fineness individually, owing to being the cinder individually burnt, slurry does not has between granule viscosity, so pulp flow performance is good, metal can be removed the most thoroughly, be greatly improved the whiteness of finished product.And owing to slurry is not have sticking, can greatly improve grinding efficiency, reduce power consumption, reduce cost.
The present invention adds raw Talcum during ball-milling treatment or in finished product, and raw MgO contained by Talcum can form special microcosmic crystal structure with Al, the Si in the CaO in cinder and pottery convenient source so that Imitation Rock Porcelain Tiles finished product forms a kind of new CaO-MgO-Al2O3-SiO2Structure, thus improve the various aspects of performance index of Imitation Rock Porcelain Tiles finished product.This CaO-MgO-Al2O3-SiO2Structure overcomes calcium content height and causes the problem of the porosity, improves the whiteness of finished product, reduces the water absorption rate of finished product, improves rupture strength.
It is also possible to the metals such as the ferrum of removing, titanium, vanadium are reclaimed, economize on resources；Whole processing procedure, without solid discharge, meets the requirement of environmental protection and energy saving.
The above is the preferred embodiment of the present invention, should be understood that, although the present invention only gives above example, but also provide many possible variants needing not move through creative work and draw, though still cannot be exhaustive, but those skilled in the art are after reading over this specification, in conjunction with common knowledge, more detailed description of the invention should be able to be associated, the spirit of the most unconventional the claims in the present invention of this type of detailed description of the invention, any type of equivalent or some improvements and modifications are regarded as the embodiment being included by the present invention, belong to protection scope of the present invention.
Claims (9)
1. a cinder, is exclusively used in Imitation Rock Porcelain Tiles, it is characterised in that it is made up of following component by weight percentage:
SiO2 50-65%、Al2O3 17-24 %、CaO 5-7 %、Fe2O30.01-0.5%、SO3 0.01-3.5%、K2O 1-3 %、TiO2 0.01-0.4 %、MgO 0.5-4.0 %、Na2O 0.5-3.5 %、P2O5 0.3-1%、BaO 0.1-0.3%、F 0.1-0.3%、V2O5 0.1-0.05%、MnO0.1-0.3%、SrO 0.01-0.3%、Cr2O3 0.01-0.05%、ZrO2 0.01-0.1%、NiO 0.01-0.05%、CuO0.01-0.03%、ZnO0.01-0.03%、As2O30.01-0.03%、Rb2O0.005-0.01%；
Said components sum is 100%.
2. cinder as claimed in claim 1, it is characterised in that it is made up of following component by weight percentage:
SiO2 60-64%、Al2O3 22-24 %、CaO 5-7 %、Fe2O30.01-0.4%、SO3 2-3.5%、K2O 1-3 %、TiO2 0.01-0.1 %、MgO 0.5-1.5 %、Na2O 0.5-1.5 %、P2O5 0.3-1%、BaO 0.1-0.3%、F 0.1-0.3%、V2O5 0.1-0.05%、MnO0.1-0.3%、SrO 0.1-0.3%、Cr2O3 0.01-0.05%、ZrO2 0.01-0.05%、NiO 0.01-0.05%、CuO0.01-0.03%、ZnO0.01-0.03%、As2O30.01-0.03%、Rb2O0.005-0.01%；
Said components sum is 100%.
3. cinder as claimed in claim 1 or 2, it is characterised in that described cinder includes through the pretreatment of following steps, described step:
(1) cinder raw material is sieved；
(2) cinder after sieving carries out ferrum recovery by magnetic plant；
(3) cinder after magnetic separation being added water, and through ball-milling treatment, obtain the first mixed material, wherein, cinder is 1.8-2.2:0.8-1.2 with the amount ratio of water, and the proportion of the first mixed material is 1.0-2.0, water content is 25-45%, flow velocity is 10-20s；
(4) cinder after ball milling is initially charged water, carry out iron powder recovery by equipment for removing ferric ion again, obtain the second mixed material, wherein, cinder is 1.5-2.5:0.8-1.2 with the amount ratio of water, and the proportion of the second mixed material is 1.0-2.0, water content is 25-50%, flow velocity is 8-20s；
(5) by adding bleach except the cinder after ferrum, carrying out settling and bleaching by Sedimentation tank, wherein, cinder is 1:0.0005-0.02 with the amount ratio of bleach；
(6) cinder after sedimentation is carried out filter pressing process by pressure filter；
(7) cinder after filter pressing is dried, obtains cinder finished product；
In step (1), described cinder raw material passes through 6-10 mesh sieve.
4. cinder as claimed in claim 3, it is characterised in that in step (3), the proportion of described first mixed material is 1.4-1.6, flow velocity is 15-20s, fineness is that 80-120 mesh sieve tails over 0-10g.
5. cinder as claimed in claim 3, it is characterised in that in step (5), except the bleaching time of the cinder after ferrum is 10-60 minute, the Fe content ＜ 0.5% of the cinder after bleaching.
6. cinder as claimed in claim 3, it is characterised in that described bleach selects the mixture of 0.05-2% soda and 0.05-2% sodium hydrosulfite, or the sulphuric acid of 0.05-2%, and the concentration of sulphuric acid is 10-30%.
7. cinder as claimed in claim 3, it is characterised in that in step (6), through the water content ＜ 50% of the cinder that filter pressing processes.
8. cinder as claimed in claim 3, it is characterised in that in step (7), through the water content ＜ 20% of the cinder of dried.
9. cinder as claimed in claim 3, it is characterised in that described mechanical milling process is additionally added raw Talcum, and the addition of described raw Talcum is 1-20%；
Described cinder finished product is additionally added raw Talcum, and the addition of described raw Talcum is 1-20%.
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| CN102491724B (en) * | 2011-11-11 | 2013-04-03 | 上海鑫晶山建材开发有限公司 | Iron ore slag sintered brick and a preparation technology of same |
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