EP1558532A1 - Verfahren zur herstellung einer mineralischen schmelze - Google Patents
Verfahren zur herstellung einer mineralischen schmelzeInfo
- Publication number
- EP1558532A1 EP1558532A1 EP03810444A EP03810444A EP1558532A1 EP 1558532 A1 EP1558532 A1 EP 1558532A1 EP 03810444 A EP03810444 A EP 03810444A EP 03810444 A EP03810444 A EP 03810444A EP 1558532 A1 EP1558532 A1 EP 1558532A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- residues
- mineral
- combustion
- production
- mass
- 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.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims abstract description 27
- 229910052500 inorganic mineral Inorganic materials 0.000 title claims abstract description 20
- 239000011707 mineral Substances 0.000 title claims abstract description 19
- 238000002485 combustion reaction Methods 0.000 claims abstract description 36
- 238000004519 manufacturing process Methods 0.000 claims abstract description 34
- 239000002956 ash Substances 0.000 claims abstract description 26
- 239000000203 mixture Substances 0.000 claims abstract description 22
- 239000002893 slag Substances 0.000 claims abstract description 19
- 235000002918 Fraxinus excelsior Nutrition 0.000 claims abstract description 17
- 238000002844 melting Methods 0.000 claims abstract description 17
- 230000008018 melting Effects 0.000 claims abstract description 17
- 239000000835 fiber Substances 0.000 claims abstract description 9
- 239000011490 mineral wool Substances 0.000 claims abstract description 8
- 239000002023 wood Substances 0.000 claims abstract description 8
- 239000002817 coal dust Substances 0.000 claims abstract description 6
- 239000003077 lignite Substances 0.000 claims abstract description 6
- 239000000758 substrate Substances 0.000 claims abstract description 6
- 239000002989 correction material Substances 0.000 claims abstract description 5
- 238000001914 filtration Methods 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims abstract description 4
- 239000000126 substance Substances 0.000 claims description 26
- 239000004575 stone Substances 0.000 claims description 22
- 239000011230 binding agent Substances 0.000 claims description 20
- 239000002557 mineral fiber Substances 0.000 claims description 19
- 238000012937 correction Methods 0.000 claims description 17
- 239000004568 cement Substances 0.000 claims description 12
- 239000000155 melt Substances 0.000 claims description 11
- 239000010802 sludge Substances 0.000 claims description 7
- 239000000470 constituent Substances 0.000 claims description 5
- 239000012774 insulation material Substances 0.000 claims description 5
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 4
- 239000003546 flue gas Substances 0.000 claims description 4
- 239000011521 glass Substances 0.000 claims description 3
- 239000012783 reinforcing fiber Substances 0.000 claims description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 2
- 230000002950 deficient Effects 0.000 claims description 2
- 238000006477 desulfuration reaction Methods 0.000 claims description 2
- 230000023556 desulfurization Effects 0.000 claims description 2
- LIKBJVNGSGBSGK-UHFFFAOYSA-N iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Fe+3].[Fe+3] LIKBJVNGSGBSGK-UHFFFAOYSA-N 0.000 claims description 2
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims description 2
- 238000003976 plant breeding Methods 0.000 claims description 2
- 229910052595 hematite Inorganic materials 0.000 claims 1
- 239000011019 hematite Substances 0.000 claims 1
- 238000005272 metallurgy Methods 0.000 claims 1
- 150000003839 salts Chemical class 0.000 claims 1
- 238000009413 insulation Methods 0.000 abstract description 3
- 239000007767 bonding agent Substances 0.000 abstract 1
- 239000010893 paper waste Substances 0.000 abstract 1
- 238000002360 preparation method Methods 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 230000002787 reinforcement Effects 0.000 abstract 1
- 235000010755 mineral Nutrition 0.000 description 12
- 239000000047 product Substances 0.000 description 12
- 230000000694 effects Effects 0.000 description 9
- 239000002994 raw material Substances 0.000 description 6
- 239000000446 fuel Substances 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 229910001570 bauxite Inorganic materials 0.000 description 4
- 239000008187 granular material Substances 0.000 description 4
- 238000010309 melting process Methods 0.000 description 4
- 238000003860 storage Methods 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 235000019738 Limestone Nutrition 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000000969 carrier Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 239000006028 limestone Substances 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- 210000002268 wool Anatomy 0.000 description 3
- 239000011398 Portland cement Substances 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 2
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 2
- -1 alkaline earth metal sulfates Chemical class 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000010459 dolomite Substances 0.000 description 2
- 229910000514 dolomite Inorganic materials 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000011068 loading method Methods 0.000 description 2
- 239000001095 magnesium carbonate Substances 0.000 description 2
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 2
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 2
- 235000014380 magnesium carbonate Nutrition 0.000 description 2
- 230000008092 positive effect Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 229910052810 boron oxide Inorganic materials 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 230000003009 desulfurizing effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 150000002222 fluorine compounds Chemical class 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000007496 glass forming Methods 0.000 description 1
- 239000011491 glass wool Substances 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 235000021190 leftovers Nutrition 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 235000012054 meals Nutrition 0.000 description 1
- 238000010327 methods by industry Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- MOWNZPNSYMGTMD-UHFFFAOYSA-N oxidoboron Chemical class O=[B] MOWNZPNSYMGTMD-UHFFFAOYSA-N 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 239000011049 pearl Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000010801 sewage sludge Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002594 sorbent Substances 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C13/00—Fibre or filament compositions
- C03C13/06—Mineral fibres, e.g. slag wool, mineral wool, rock wool
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B1/00—Preparing the batches
- C03B1/02—Compacting the glass batches, e.g. pelletising
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C1/00—Ingredients generally applicable to manufacture of glasses, glazes, or vitreous enamels
- C03C1/002—Use of waste materials, e.g. slags
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C1/00—Ingredients generally applicable to manufacture of glasses, glazes, or vitreous enamels
- C03C1/02—Pretreated ingredients
- C03C1/026—Pelletisation or prereacting of powdered raw materials
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C3/00—Glass compositions
- C03C3/04—Glass compositions containing silica
- C03C3/062—Glass compositions containing silica with less than 40% silica by weight
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C3/00—Glass compositions
- C03C3/04—Glass compositions containing silica
- C03C3/062—Glass compositions containing silica with less than 40% silica by weight
- C03C3/064—Glass compositions containing silica with less than 40% silica by weight containing boron
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C3/00—Glass compositions
- C03C3/04—Glass compositions containing silica
- C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
- C03C3/097—Glass compositions containing silica with 40% to 90% silica, by weight containing phosphorus, niobium or tantalum
Definitions
- the invention relates to a method for producing a mineral melt for the production of mineral fibers, in particular rock wool for thermal and / or acoustic insulation and for fire protection, substrates for plant breeding, reinforcing fibers and fibers for filtration purposes, in which at least from Production-derived residues as well as correction materials for setting the required composition and viscosity of the melt are crushed and pressed with a binder to form stones and the stones are fed to a melting unit.
- Stone wool insulation materials are used for heat, sound and / or fire protection. Stone wool products are also used to breed plants or to strengthen e.g. Coating materials or other products or also used as fibers for filtration purposes. In the following, the rock wool products listed as examples are collectively referred to as mineral fiber products.
- glass wool is commonly distinguished from rock wool.
- Stone wool is mainly produced from mixtures of broken effusion stones, such as basalt or diabase, and small amounts of limestone, dolomite and magnesite as supplements, as well as from broken effusion stones and coarse blast furnace slags and, if necessary, additional small quantities of limestone, dolomite and magnesite.
- These supplements can be added to the batches individually or in different mixtures with one another.
- the broken raw materials are increasingly being replaced by artificially manufactured bodies of the appropriate size, shape and strength, which are composed of various raw and residual materials as well as suitable binders. These bodies are referred to below as shaped stones.
- the shaped stones can contain fine-grained, broken natural stones.
- Production-related residues are added as additional components, for example the coarser constituents that inevitably arise during the manufacturing process, such as melting pearls, the solidified melt resulting from the regular emptying of the melting furnaces together with the partially melted rock remnants and parts of the furnace lining made of refractory building materials as well as the insulation materials or substrates. that occur when trimming an endlessly produced fiber web.
- Other production-related residues are leftovers, defective products or used insulation materials or substrates to be melted.
- the production-related residues are prepared for the production of shaped blocks, ie crushed, ground and then mixed with correction substances. With the help of these correction substances, the required composition of the batch is achieved, which causes a uniform and rapid melting in the melting unit. At the same time, the temperature and viscosity of the resulting melt are influenced to such an extent that the most efficient, evenly running defibration process is achieved.
- Correction materials are, for example, slags from the steel industry such as converter or ladle slags or melting chamber granules from coal-fired power plants. Substances containing aluminum in oxidic and / or metallic form are also considered to be essential correction substances here. Suitable carriers are raw bauxite or calcined bauxite, as well as alumina cement, which of course can also function as a binder.
- DE 101 02 615 A1 discloses the use in this regard of catalysts which are no longer usable from the petroleum industry.
- Correction substances which contain both Al 2 O 3 and metallic aluminum are the slags described in WO 99/28252 A1 which occur when aluminum is recovered from Al scrap. These slags also contain small amounts of Na sulfates and Na fluorides.
- correction substances are ores, such as hematite (Fe 2 O 3 ) or magnetite (Fe 3 O 4 ).
- the granular and fibrous components, the internal residues and the correction substances are predominantly mixed with inorganic binders, mostly with the addition of water, and then pressed into shaped bodies.
- inorganic binders are to be understood to mean hydraulically setting cements such as standardized Portland cements, but also all types of special cements, as well as the alumina melt cements already mentioned.
- the proportions of the binders in the shaped blocks are approximately 9 to 15% by mass.
- the conveying and loading in general the shape stones reach a minimum compressive strength of approx. 3-5 MPa after 3 days, for example, they are added to the melting unit together with the other raw materials or alone, but always together with the lumpy fuels required for the melting process. This is where the melt required for fiber formation is produced, which is then fed to the defibration unit.
- the defibration unit usually consists of several rollers rotating at high rotational speeds and staggered one above the other.
- the temperature and the viscosity of the mineral melt have a considerable influence on the processability on the respective defibration unit.
- the optimal processing range of the melt can therefore be specifically influenced by the choice of raw materials.
- the chemical composition of the melt and the mineral fibers made from it affect their biosolubility, i.e. the dwell time in the human organism. Biosolubility results to a decisive degree from the proportions of the oxides and compounds of silicon, aluminum, titanium, sodium, magnesium, potassium, calcium, iron and their relationships to one another. For example, the levels of boron oxides are also important for bio-solubility.
- a typical composition of a mineral melt for the production of commercially available, bio-soluble rock wool essentially consists of the following:
- the invention is based on the task of developing a generic method for producing a mineral melt for the production of rockwool in such a way that, on the one hand, the costs for the raw materials are reduced, but at the same time the properties of the mineral fiber products to be produced be improved if possible.
- the solution to this problem provides that constituents of the shaped blocks, in particular the correction substances and / or other batch constituents, are at least partially replaced by granular combustion residues, in particular ash or slag, from the combustion of preferably lignite and / or hard coal dust, paper sludge or wood chips ,
- the correction substances mixed with the residues originating from the production for the production of the shaped blocks are partially substituted by combustion residues.
- compositions of the ashes and slags usually vary within certain limits.
- waste materials are burned in a fluidized bed at a temperature> 800 ° C.
- Fuels are mixed in for the combustion of low calorific value waste materials.
- the fluidized bed is created by adding fluidizing air through a nozzle bottom.
- Fuel and / or the waste materials can be conveyed from above onto the fluidized bed by means of throwing feeders or also directly into the fluidized bed by means of screw conveyors.
- the degassing and gasification of the fuel and the burning of the solid carbon take place in the fluidized bed.
- Volatile components can be re-burned or the heat can be recovered using heat exchangers.
- the process-related intensive mixing and combustion, the good heat transfer in the fluidized bed, as well as the residence time of the hot flue gases leave with regard to the moisture and chemical, mineralogical and granulometric composition of fluidized bed ash, which are highly uniform.
- Such filter ash can now not only substitute a part of the correction substances in the production of molded blocks because of their chemical composition, but surprisingly also influence the development of strength of the molded blocks in a very favorable manner. This effect is due on the one hand to the latent hydraulic properties of some of the ashes mentioned, and / or to the reaction-accelerating effect on the binders used, and ultimately also to their particle sizes.
- both the early strength and the final strength surprisingly increase. The final strength has no practical meaning here.
- the CaO content in such ashes can be increased to 70% and the SO 3 content to 20%. This reduces the percentage of the other components accordingly.
- the strength requirements can be reduced, which is usually done by reducing the proportion of binder. Saving potentials of, for example, approximately 5 to approximately 15 mass% of the binder contents normally used are possible.
- the combustion residues described above in particular ashes and / or slags, preferably filter ashes, have chemical compositions which are particularly suitable for correcting the compositions of mineral melts for the production of mineral fibers.
- the combustion residues reduce the viscosity of the mineral melt at the usual processing temperatures. This makes it possible, for example, to produce evenly finer mineral fibers, which in turn have a favorable influence on the performance properties of the mineral fibers and the mineral fiber products made from them. At the same time, such a melt has a material-saving effect on the defibration unit.
- the relatively high proportion of Al 2 O 3 in some of the combustion residues enables the substitution of other alumina carriers.
- the aluminum oxide itself promotes the bio-solubility of the mineral fibers.
- ashes from the combustion of lignite and hard coal dust as well as paper sludge and wood chips have proven to be particularly suitable.
- the method according to the invention also has the advantage that the combustion residues that are otherwise to be disposed of in the landfill can now be recycled.
- the ingredients of the combustion residues have a glass-forming effect, otherwise they change glass. It is very important that actually undesirable components of the combustion residues are incorporated into the glasses in a poorly soluble form through the controlled manufacturing process.
- this form of recycling also significantly reduces the burden on the environment. This applies even if the mineral fibers are not recycled again after the end of their use phase, but are instead disposed of.
- combustion residues in particular filter ash from, for example, fluidized bed combustion processes, which result from the combustion of lignite and hard coal dust, paper sludge or wood chips, have advantageous properties with regard to the strength formation of the shaped stones due to their high fineness and their chemical composition for the production of shaped stones , At the same time, they have a positive effect on the melting behavior of these shaped stones when producing a mineral melt and offer the possibility of a targeted viscosity Control of the mineral melt. Finally, these combustion residues make a positive contribution to improving the biosolubility of the mineral fiber products made from these mineral melts.
- shaped stones are pressed which are made from 38 to 64% by mass of production-related residues, 5 to 20% by mass of melting chamber granulate, 0 to 11% by weight of converter slag, 0 to 14% by weight of ladle slag as correction substances , 10 to 25% by mass of Al 2 O 3 carriers, for example bauxite, 9 to 12% by mass of cements and 1 to 5% by mass of ashes from the combustion of paper sludge.
- the proportion of converter slag and ladle slag as well as cement is reduced in comparison to a corresponding composition of shaped blocks according to the prior art. Accordingly, in this exemplary embodiment there is a substantial reduction in the proportion of cement, which results in a substantial reduction in the production costs of the shaped blocks.
- the correction substances are contained in the composition of the shaped blocks as follows:
- another exemplary embodiment provides that production-related residues in a proportion of 38 to 64% by mass with a proportion of melting chamber granules of 0 to 15% by mass, converter slag 0 to 15% by mass and ladle slag 0 to 18% by mass % as correction substances and an Al 2 0 3 carrier, for example bauxite, in a proportion of 5 to 20 mass% together with 1 1 to 13 mass% cements and a proportion of 5 to 25 mass% ash from the Braun - / Coal combustion can be mixed.
- an Al 2 0 3 carrier for example bauxite
- the correction substances are at least partially substituted by granular combustion residues, namely ashes from the brown / hard coal combustion, the sewage sludge combustion, the wood combustion or from the paper production. This results in a reduction in the cement requirement, namely the cost-intensive binder, and improved viscosity control.
Landscapes
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Geochemistry & Mineralogy (AREA)
- General Chemical & Material Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Ceramic Engineering (AREA)
- Glass Compositions (AREA)
- Processing Of Solid Wastes (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP03810444A EP1558532A1 (de) | 2002-11-06 | 2003-11-06 | Verfahren zur herstellung einer mineralischen schmelze |
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10252000 | 2002-11-06 | ||
| DE10252000 | 2002-11-06 | ||
| EP03253600 | 2003-06-06 | ||
| EP03253600 | 2003-06-06 | ||
| PCT/EP2003/012393 WO2004041734A1 (de) | 2002-11-06 | 2003-11-06 | Verfahren zur herstellung einer mineralischen schmelze |
| EP03810444A EP1558532A1 (de) | 2002-11-06 | 2003-11-06 | Verfahren zur herstellung einer mineralischen schmelze |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1558532A1 true EP1558532A1 (de) | 2005-08-03 |
Family
ID=32313546
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP03810444A Withdrawn EP1558532A1 (de) | 2002-11-06 | 2003-11-06 | Verfahren zur herstellung einer mineralischen schmelze |
| EP03775307.6A Expired - Lifetime EP1558533B1 (de) | 2002-11-06 | 2003-11-06 | Verfahren zur herstellung von mineralfasern |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP03775307.6A Expired - Lifetime EP1558533B1 (de) | 2002-11-06 | 2003-11-06 | Verfahren zur herstellung von mineralfasern |
Country Status (9)
| Country | Link |
|---|---|
| US (2) | US20060042319A1 (de) |
| EP (2) | EP1558532A1 (de) |
| AU (2) | AU2003283361A1 (de) |
| CA (2) | CA2504598C (de) |
| HR (2) | HRP20050459A2 (de) |
| PL (2) | PL212681B1 (de) |
| RU (2) | RU2370461C2 (de) |
| SI (1) | SI1558533T1 (de) |
| WO (2) | WO2004041734A1 (de) |
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006015846A1 (de) * | 2004-08-09 | 2006-02-16 | Deutsche Rockwool Mineralwoll Gmbh & Co. Ohg | Verfahren zur herstellung einer mineralischen schmelze sowie formstein |
| WO2006015647A1 (de) * | 2004-08-09 | 2006-02-16 | Deutsche Rockwool Mineralwoll Gmbh & Co. Ohg | Verfahren zur herstellung einer mineralischen schmelze sowie formstein |
| EP1799620A1 (de) * | 2004-10-13 | 2007-06-27 | Rockwool International A/S | Behandlung von schlamm |
| EP1838638B1 (de) * | 2004-11-11 | 2016-10-19 | Rockwool International A/S | Verfahren zur herstellung von dämmstoffen aus mineralfasern und füllung für ein schmelzaggregat zur herstellung einer mineralischen schmelze |
| WO2008095329A1 (en) * | 2007-01-31 | 2008-08-14 | Institute Of Process Engineering, Chinese Academy Of Sciences | An anti-oxidation coating for steel and method of protecting steel from oxidation |
| EP2454210B1 (de) * | 2009-07-13 | 2016-09-14 | Rockwool International A/S | Mineralfasern und ihre Verwendung |
| RU2397876C1 (ru) * | 2009-10-19 | 2010-08-27 | Юлия Алексеевна Щепочкина | Способ получения материала, имитирующего синий коралл |
| RU2446113C1 (ru) * | 2010-11-09 | 2012-03-27 | Юлия Алексеевна Щепочкина | Шихта для получения стекла (варианты) |
| DK2697178T3 (da) | 2011-04-13 | 2019-12-09 | Rockwool Int | Fremgangsmåder til dannelse af syntetiske glasfibre |
| CN104003613A (zh) * | 2012-08-06 | 2014-08-27 | 上海榕新实业有限公司 | 一种利用城市污泥和冶炼矿渣制备无机纤维的方法 |
| ES2881540T5 (en) * | 2012-11-12 | 2025-06-23 | V&L Chem S L | Briquette for the production of rock wool and method for the production of said briquette |
| FR3000056B1 (fr) * | 2012-12-21 | 2016-03-25 | Saint Gobain Isover | Procede de fabrication de verre par fusion electrique |
| CN104909554A (zh) * | 2015-05-21 | 2015-09-16 | 南京敬邺达新型建筑材料有限公司 | 一种热熔矿渣再生岩棉及其生产方法 |
| FR3043399B1 (fr) * | 2015-11-09 | 2018-01-05 | Eco'ring | Procede de production de laine de roche et de fonte valorisable |
| CH715010B1 (de) * | 2018-05-22 | 2021-12-30 | Sager Ag | Mineralfaserzusammensetzung. |
| GB2574206B (en) * | 2018-05-29 | 2023-01-04 | Knauf Insulation Sprl | Briquettes |
| CN110079894A (zh) * | 2019-04-22 | 2019-08-02 | 李科 | 一种利用油泥提取纤维的工艺方法 |
| CN110183143A (zh) * | 2019-04-29 | 2019-08-30 | 柳州柳晶环保科技有限公司 | 一种高抗压透水砖及其制作方法 |
| FI3994102T3 (fi) * | 2019-07-05 | 2023-07-04 | Sumitomo SHI FW Energia Oy | Järjestely ja menetelmä mineraalivillajätteen kierrättämiseksi |
| CN117185641B (zh) * | 2022-06-01 | 2025-08-01 | 中石化石油工程技术服务有限公司 | 一种基于钻屑的岩棉及其制备方法和应用 |
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2003
- 2003-11-06 EP EP03810444A patent/EP1558532A1/de not_active Withdrawn
- 2003-11-06 CA CA2504598A patent/CA2504598C/en not_active Expired - Fee Related
- 2003-11-06 PL PL377167A patent/PL212681B1/pl unknown
- 2003-11-06 US US10/534,009 patent/US20060042319A1/en not_active Abandoned
- 2003-11-06 AU AU2003283361A patent/AU2003283361A1/en not_active Abandoned
- 2003-11-06 SI SI200332567T patent/SI1558533T1/en unknown
- 2003-11-06 AU AU2003301849A patent/AU2003301849A1/en not_active Abandoned
- 2003-11-06 HR HR20050459A patent/HRP20050459A2/xx not_active Application Discontinuation
- 2003-11-06 WO PCT/EP2003/012393 patent/WO2004041734A1/de not_active Ceased
- 2003-11-06 PL PL377198A patent/PL377198A1/pl not_active Application Discontinuation
- 2003-11-06 WO PCT/EP2003/012373 patent/WO2004041735A1/en not_active Ceased
- 2003-11-06 HR HR20050490A patent/HRP20050490A2/xx not_active Application Discontinuation
- 2003-11-06 CA CA2506769A patent/CA2506769C/en not_active Expired - Fee Related
- 2003-11-06 RU RU2005117358/03A patent/RU2370461C2/ru active
- 2003-11-06 RU RU2005117362/03A patent/RU2358917C2/ru not_active IP Right Cessation
- 2003-11-06 US US10/533,689 patent/US20060162391A1/en not_active Abandoned
- 2003-11-06 EP EP03775307.6A patent/EP1558533B1/de not_active Expired - Lifetime
Non-Patent Citations (2)
| Title |
|---|
| None * |
| See also references of WO2004041734A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2504598C (en) | 2015-01-06 |
| HRP20050490A2 (en) | 2006-02-28 |
| EP1558533B1 (de) | 2018-01-10 |
| AU2003283361A8 (en) | 2004-06-07 |
| CA2506769A1 (en) | 2004-05-21 |
| PL377167A1 (pl) | 2006-01-23 |
| PL212681B1 (pl) | 2012-11-30 |
| AU2003283361A1 (en) | 2004-06-07 |
| AU2003301849A1 (en) | 2004-06-07 |
| CA2504598A1 (en) | 2004-05-21 |
| US20060162391A1 (en) | 2006-07-27 |
| RU2005117362A (ru) | 2006-01-20 |
| PL377198A1 (pl) | 2006-01-23 |
| RU2005117358A (ru) | 2006-01-20 |
| WO2004041735A8 (en) | 2004-07-01 |
| EP1558533A2 (de) | 2005-08-03 |
| SI1558533T1 (en) | 2018-06-29 |
| US20060042319A1 (en) | 2006-03-02 |
| RU2370461C2 (ru) | 2009-10-20 |
| WO2004041735A1 (en) | 2004-05-21 |
| HRP20050459A2 (en) | 2005-08-31 |
| WO2004041734A1 (de) | 2004-05-21 |
| RU2358917C2 (ru) | 2009-06-20 |
| CA2506769C (en) | 2012-02-28 |
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