CN101541692A - Method and facility for the production of soluble glass using heat recovery - Google Patents
Method and facility for the production of soluble glass using heat recovery Download PDFInfo
- Publication number
- CN101541692A CN101541692A CNA2007800440762A CN200780044076A CN101541692A CN 101541692 A CN101541692 A CN 101541692A CN A2007800440762 A CNA2007800440762 A CN A2007800440762A CN 200780044076 A CN200780044076 A CN 200780044076A CN 101541692 A CN101541692 A CN 101541692A
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- CN
- China
- Prior art keywords
- interchanger
- glass
- heat
- water
- prepared
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- 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.)
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B3/00—Charging the melting furnaces
- C03B3/02—Charging the melting furnaces combined with preheating, premelting or pretreating the glass-making ingredients, pellets or cullet
- C03B3/023—Preheating
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/20—Silicates
- C01B33/32—Alkali metal silicates
-
- 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
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
-
- 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
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
-
- 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
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
-
- 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
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Glass Melting And Manufacturing (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The method for the production of a product by means of melting a supplied material and letting it harden, preferably a method for the production of types of glass, in particular soluble glass, in a furnace, preferably in a tank furnace, using heat recovery, is characterized in that at least one part of the heat given off by the product produced is used for preheating the supplied material. Thereby energy is saved, the capacity of the tank furnace is increased, the occupational safety is improved, and less water for cooling the conveyor belt is used for the melted glass produced.
Description
The present invention relates in using the smelting furnace of recovery of heat, preferred tank furnace by fused raw material and make its method of solidifying preparing product, be preferably the method for preparing glass, particularly water glass,
The summary of preparation water glass can be referring to " Henkel-Referaten " the 34,1998, the 7th～13 page.
Prepare water glass industrial according to three kinds of methods: the melting method in traditional tank furnace, melting method and the hydrothermal method in the rotary kiln.
Alkalimetal silicate common in most of industry is by traditional melting method preparation.The soda method (Sodaverfahren) that is used to prepare solid-state sodium silicate is a pyroprocess, and wherein the mixture of sand and soda (compound) resolves into water glass at the tank furnace of Siemens-Martin-regenerative furnace type or at the rotary kiln neutral and alkali under 1300～1500 ℃ temperature.Be used for the incendiary air and import the accumulation of heat chamber, and be preheating to about 1200 ℃ through ventilation installation and reversing system.
Under this high temperature, alkaline soda and quartz sand reaction form water glass.Fused water glass will from smelting furnace, be continuously removed, cool off and send into the warehouse or directly send into the dissolution equipment group (
).The preparation of the water-soluble glass in tank furnace is referring to Fig. 1.
When in rotary kiln, being prepared, ready prepd compound is fed into the furnace side that is positioned at eminence, and it is transported to high-temperature area from low-temperature region by the smelting furnace of rotational circle tubular.Continuously form stable new surface thus.By wheel gearing, rolling transmission mechanism or worm gear, inclination 3-7 ° smelting furnace is around the rotation very slowly of its axle.Begin heating from following end with oil or gas.The end discharging that glass melting thing (Glasschmelz) is lower in the position is also sent into following process.
Solid sodium silicate by tank furnace or rotary kiln preparation is not as solid material, but almost only uses as the aqueous solution, and concentration is 35% usually.In order to carry out this preparation, will obtain from melting process, be cooled to 300 ℃ solid glass piece and be dissolved in the water of the pressure-pot between 100 ℃ and 150 ℃ of the normal pressures.According to required type, continue the described solution of processing, promptly filter, concentrate and when needing with inorganic additives or organic additive modification.
With Hydrothermal Preparation water glass the time, in a working routine, decompose at last and dissolution process.In this process, avoid pyroprocess, in about 200 ℃ and about 20 crust highly compressed autoclaves, directly obtain alkalimetal silicate as liquid glass from sand and sodium hydroxide solution.
Except sodium silicate, also use a spot of potash water glass.Because potassium silicate is the price high product, use potassium silicate so only have under the interferential situation at sodium.
Melting process in the industrial smelting furnace (for example melting process of glass and metal) is being carried out under the high-temperature very much, therefore consumes big energy.After the smelting furnace outflow, pass through the heat that so-called cooling zone (K ü hlband) is derived melts usually.The derivation of common this heat is necessary for follow-up procedure of processing.Therefore, the thermal capacity of described melts shows as thermosteresis.
In general production method, usually the used heat that produces because of subsequently crystallization does not have at all or does not obtain in other respects effectively using.Up to the present, also do not know from the utilization of the melting heat of smelting furnace generation.
In the equipment of routine, the heat that melts discharges has heated the space of cooling zone.So, this pyritous envrionment temperature makes near the operation the smelting furnace become difficult, and the usefulness of infringement equipment operator.
In addition, in German federal Environmental Protection Agency (Umweltbundesamt) report in June calendar year 2001 " large volume solid inorganic chemical, water glass ", the heat recovery equipment when the preparation water glass in the prior art is disclosed at length.When being prepared in rotary kiln, available two kinds of production decisions reclaim heat.First kind is, is the material that the end of high temperature off-air preheating on rotary kiln adds by waste gas.This point is feasible, because in the smelting furnace rotation, sand and soda lead with the flow direction opposite with the waste gas guiding.Another kind is, after waste gas was discharged from rotary kiln, its amount of residual heat will fed recuperator with the required combustion air that heats up, and waste gas is cooled to 200～250 ℃ from about 600 ℃ in recuperator.Simultaneously extraneous air is raised to 350～400 ℃, and then arrives the burner (brennfackel) that is positioned at end below the rotary kiln.
As illustrated in the 10th page of lower part of above-mentioned report, based on the method for preparation process in the different tank furnaces, feed intake and waste gas can not have convection current to.Therefore, also do not exist in the prior art as in rotary kiln to the preheating of raw material.Knownly in this method only be the combustion air of needs to be carried out preheating by being used alternatingly more exhaust gases passes (Rauchgasz ü ge).Herein, the passage of hot flue gas through having built discharged, and brick masonary has obtained heating like this.After certain hour, this flue gas is discharged through another passage.Then, the still cold combustion air heated passage of flowing through has heated combustion air.Regular conversion by each passage has realized quasi-continuous operation.
The object of the invention is, when this paper begins in the described method, realize conserve energy simultaneously, improve tank furnace throughput, improve labour protection and for the melten glass consumption of producing water coolant still less in order to cooling conveyer belt.Here, described water is sprayed on the cooling zone and evaporation when cooling.
According to the present invention, the purpose when this paper begins in the described method is achieved by following method: at least a portion in the heat that prepared product (particularly when it solidifies) discharges is used for the preheating of raw material.
According to the present invention, reclaim and utilize again the thermal capacity, particularly its solidification heat of the still fused water glass of just having prepared at least in part.The utilization of unknown this heat does not fully have simultaneously this utilization yet in rotary kiln technology in the prior art.Known up till now only is the heat of retrieving from waste gas or off-air.
Mentioned favourable design related to the present invention in the dependent claims.
The invention still further relates to the relevant device of claim 8 and 9.
Around the cooling zone that described first interchanger moves upward with being arranged on continuous tilt and above cooling zone, wherein fused water glass drips to or flows on the cooling zone from tank furnace, thereby solidifies on cooling zone and cooling.Cooling zone to bottom angled when returning, water sprays cooling zone and cooling by this way.The shell that tilts equally and be arranged on cooling zone top has been strengthened the airflow between shell and the cooling zone, thereby has improved the convection section that takes the heat transfer of shell (being first interchanger simultaneously) from melten glass or high temperature cooling to.(verlaufende) pipeline that is parallel to the cooling zone trend preferably is set in shell, and thermal barrier, particularly water are wherein under high pressure flowing.It is shocking that the cold water in the time of will flowing into by this way (20～30 ℃) is heated at least about 140 ℃.
Herein, heat transfer is mainly undertaken by radiation.Yet in favourable design of the present invention, can also be by the additional exhaust chimney that on shell, is provided with, it is drawn vertically upward and causes suction function to strengthen, thereby makes gas velocity be increased to about 2m/s from about 1m/s.The result is that owing to obviously improved heat transfer, temperature improves about 10%.
Among the described below embodiment, described first interchanger, promptly shell is being worked to the concurrent of the fusion water glass of top conveying from the bottom with same.But also can be convection current cooling, this in addition perhaps be particularly advantageous.
By reclaiming the thermal capacity of high-temperature molten, the present invention causes for example generation of steam.The steam that produces through the melts transport point can be used for for example heating raw.Can save energy by heating raw on the one hand.Can improve the throughput of smelting furnace on the other hand by preheating material, more because time per unit can be produced.In addition, because mounting heat exchanger is with the shielding high-temperature product, so job security is improved.
In addition, the present invention also has following advantage:
Save energy by preheating material
By being used for dissolution process, the high temperature condensation product saves energy
Further utilize energy to be used for for example producing steam
Increase throughput by preheating material
Working conditions when having improved operation, this is because the reduction of envrionment temperature
Improved job security
Especially, the invention reside in, reclaim at present as calorific loss and dispersed heat, and reflux and continue on for processing through the interchanger of cooling zone by new installation.Can use this heat to produce for example superheated or saturated steam.
Can sell or be used for others by whole steam or most of steam that interchanger produced.The steam that produces in first interchanger of a part for example can feed in another suitable interchanger with preheating material.Thus, saved energy and increased the throughput of smelting furnace.
Can be used for other process from the effusive vapour stream of second interchanger as condensation product.When this condensation product that comes out is directly used in other processes, can correspondingly reduce essential energy expenditure from second interchanger.
Describe embodiments of the invention, also accompanying drawings prior art in detail below in conjunction with accompanying drawing.
Fig. 1 is according to the synoptic diagram of prior art for preparing water glass,
Fig. 2 according to the synoptic diagram of the inventive method and the present device of embodiment (accurately do not illustrate shell 16 around zone) and
Zone around Fig. 3 shell 16
Identical symbol has identical implication in institute's drawings attached, therefore as might only explaining once.
Among Fig. 1 schematic presentation according to the preparation of prior art.Through belt scale 1 and helical mixer 2 (Misch-Schnecke) sand and soda are sent into smelting furnace 3, add hot melting furnace 3 with oil-firing burner or air burner 4.But perhaps electricity consumption or be used in combination described heating means and heat.Fresh air imports smelting furnace 3 through gas blower 5 and accumulation of heat chamber 6.Waste gas 7 from smelting furnace come out through the second accumulation of heat chamber 8, gaseous effluent cooler 9 and electrofilter (Elektrofilter) 10.
Fused water glass drips on the cooling zone 11, here solidifies and from sending as block glass 12 here.Only otherwise store and sell block glass 12, it will arrive so-called dissolver 13.In this container, described block glass 12 dissolves the final like this liquid glass 14 that obtained under the situation that feeds water and pressurization.
The examples show that the inventive method and our exposed installation are equipped with is in Fig. 2 and 3.Refining smelting furnace material also is that fused water glass flows on the cooling zone 11 from smelting furnace 3, and cooling zone 11 moves upward according to the mode of escalator.Fused water glass 15 is positioned on this " escalator " " step ".In the time of above arriving at stair, the water glass that solidifies is dished out from step, and is collected as so-called block glass 12., spray by water below and to cool off described " step " when facing down the face reversion at step.
According to the present invention, cooling zone 11 is surrounded by the shell 16 from bottom opening, is provided with the pipeline 17 that is parallel to the cooling zone trend in the inboard of shell 16.Fresh water is the end below pump 18 usefulness overvoltages (about 20 crust) import pipe, and heats up in pipeline because of the high temperature of cooling zone and about 1000 ℃ melts of cooling zone lower zone (also being charging place of fusion water glass).In outlet, also be cooling zone top, only also have an appointment 300 ℃ temperature of water glass and cooling zone.Water through condenser 19 in the excessive rolling pump around circuit.Produced the steam of 4 crust by 4 crust that reduce pressure at valve 25 places.Obtained the saturation steam of 4 crust and 163 ℃ in the upper end of pipeline 17.The part of steam is sent as external steam and to be used for other purposes through managing 20, and is not used in production water glass.The steam that another part produced flows into second interchanger 22 through managing 21, promptly is used for the flat plate heat exchanger of loose material (Sch ü ttgut), and it is that the mixture of sand and soda is preheating to about 125 ℃ with raw material.The preheating of raw material has realized higher turnout in smelting furnace 3, wherein the raw material of preheating is admitted to smelting furnace 3.After discharging heat, steam flows into condenser 23.The pyritous condensation product imports dissolver 13 through pump 24, and condensation product plays the effect of minimizing from 4 crust steam of outside input in dissolver 13.
The method of being advised for example is very suitable for the thermal capacity that when preparation glass (seeing Fig. 2 and 3) effectively utilizes melts.According to the present invention, by suitable tubular heat exchanger (
), the thermal capacity of melts can be used to produce steam.Can use all heat exchangers conducts well known by persons skilled in the art interchanger in the present invention.In addition, can pass through technical measures, improve heat transfer as shell, gas blower etc. are installed.In addition, can improve heat transfer by the surface properties (as color, coating, roughness) of optimizing pipeline or interchanger.
Under cooling zone can suitable transportation or operational conditions in interchanger, product per ton produced 0.4 ton 4 crust steam in 1 hour.Shell (seeing Fig. 2 and 3) is formed and had to described interchanger by tube bank, with by suction function with the raising air velocity.This structure itself has following advantage:
Improve convective mass transfer
Reduce envrionment temperature by discharging warm air
By the shielding high-temperature molten, improved job security
Inside plants can be sold or be used for to the major part of the steam that produces from first interchanger (shell 16).Steam that at least a portion produces in first interchanger (shell 16) for example flows in another suitable interchanger, the raw material of being made up of sand and soda with the preheating according to the present invention.This mixture is heated to about 125 ℃ in second interchanger.Basically can use the interchanger of all common configuration herein.Flat plate heat exchanger and particularly shake interchanger and be particularly suitable for the preheating solid material is as employed sand or sand and soda.Under suitable operational conditions, the humidity of raw material and method are irrelevant.
Because of the raw material of preheating, the throughput of smelting furnace is improved, and can save energy.Leave the vapour stream of second interchanger 22 as condensation product, can be used for other process.According to the present invention, when described condensation product from second interchanger 22 is directly used in dissolution process, can correspondingly reduce essential energy expenditure.
But the gained energy also can be used for this process and other process arbitrarily.
The method of novelty as herein described has following advantage for this application:
Produce the steam of 4 crust
Preheating of mixed material
When dissolution process, save 4 crust steam
The raising of smelting furnace throughput
The raising of job security and more comfortable working conditions
The reduction of dissolution process energy expenditure
According to the present invention, cooling zone 11 mainly cools off through first interchanger 16.As up to the present, water carries out all the other coolings, and wherein water is above the bottom is sprayed onto the band of transporting back from the top down.The water that is not vaporized thus equally also can be used for dissolver.
Shell 16 setting structurally to make can be from the outside cleanser conduit well.
The related symbol tabulation
1 belt scale
2 ribbon mixers
3 smelting furnaces
4 oil/air burner
5 gas blowers
6 accumulation of heat chambeies
7 waste gas
8 accumulation of heat chambeies
9 gaseous effluent coolers
10 electric separators
11 cooling zones
12 block glass
13 dissolver
14 liquid glasses, aqueous
15 fused water glass
16 shells, first interchanger
17 pipelines
18 pumps
19 condensers
20 transfer limes
21 transfer limes
22 second interchanger, flat plate heat exchanger
23 condensers
24 pumps
25 valves
Claims (9)
- In using the smelting furnace of recovery of heat, preferred tank furnace by fused raw material and make its method of solidifying preparing product, be preferably and prepare the particularly method of water glass of glass, it is characterized in that,With the heat of at least a portion from prepared product, particularly the heat that is produced when it solidifies is used for the preheating of raw material.
- 2. according to the method for claim 1, it is characterized by,Prepared glass is gone up release of heat at first interchanger (16), and described first interchanger (16) is passed to second interchanger (22) with heat, described second interchanger (22) preheating material.
- 3. according to the method for claim 2, it is characterized by,Described first interchanger (16) is built into shell (16), its be installed in be loaded with prepared glass one or more cooling zones (11) on every side, particularly mounted thereto.
- 4. according to the method for claim 2 or 3, it is characterized by,Described second interchanger (22) is built into the flat plate heat exchanger that is used for loose material.
- 5. according to each method in the aforementioned claim, it is characterized by,At least a portion heat that prepared glass is discharged when it solidifies is used for the heat supply of the described glass that solidifies (solid glass) (12) when soluble in water.
- 6. according to the method for claim 5, it is characterized by,Make water as the thermal barrier that receives the heat that discharges from prepared solid glass (12), and in importing this thermal barrier through heating of at least a portion in order to the container (dissolver) (13) that fuses described solid glass.
- 7. according to the method for claim 6, it is characterized by,The described condensation product that discharges from second interchanger (22) imports the dissolver (13).
- 8. prepare the particularly equipment of water glass of glass, it comprises smelting furnace, particularly tank furnace (3), and is provided with the refrigerating unit (11) that is used for prepared still fused glass, it is characterized by,To be arranged on as the shell (16) that first interchanger makes up refrigerating unit (11) around, preferably only be arranged on refrigerating unit (11) above, and second interchanger (22) is set, and supply the thermal barrier that discharges from first interchanger (16) through heating to described second interchanger (22) in order to preheating material.
- 9. equipment according to Claim 8 is characterized by,Be provided with the container (dissolver) (13) that solid glass (12) is dissolved in the water, and the inlet of dissolver (13) is connected with the condensation product outlet of second interchanger (22).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102006055786.7 | 2006-11-27 | ||
| DE102006055786A DE102006055786B4 (en) | 2006-11-27 | 2006-11-27 | Method and plant for producing water glass with heat recovery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101541692A true CN101541692A (en) | 2009-09-23 |
Family
ID=38982665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007800440762A Pending CN101541692A (en) | 2006-11-27 | 2007-11-17 | Method and facility for the production of soluble glass using heat recovery |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP2086893A1 (en) |
| CN (1) | CN101541692A (en) |
| BR (1) | BRPI0719311A2 (en) |
| CA (1) | CA2673495A1 (en) |
| DE (1) | DE102006055786B4 (en) |
| WO (1) | WO2008064790A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102730707A (en) * | 2011-04-02 | 2012-10-17 | 青岛东岳泡花碱有限公司 | System for recycling heat energy from sodium silicate production technology |
| CN108946779A (en) * | 2018-09-30 | 2018-12-07 | 上海高桥大同净水材料有限公司 | A kind of production method and production system of high-purity Polyaluminium Sulfate Chloride |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016205845A1 (en) * | 2016-04-07 | 2017-10-12 | Tu Bergakademie Freiberg | Process for the production of glass, control equipment, equipment for the production of glass |
| FR3066810B1 (en) | 2017-05-23 | 2019-06-14 | Arc France | COMBINED OVEN |
| FR3068347B1 (en) | 2017-06-30 | 2020-08-28 | Arc France | GLASS MANUFACTURING PREPARATION AND GLASS FURNITURE |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2371213A (en) * | 1939-06-17 | 1945-03-13 | George W Batchell | Apparatus for forming batch bodies |
| US3645712A (en) * | 1970-05-06 | 1972-02-29 | Corning Glass Works | Radiation target structure and use to cool molten glass |
| JPS54123118A (en) * | 1978-03-16 | 1979-09-25 | Nippon Sheet Glass Co Ltd | Granulation of glass raw material |
| DE3121669A1 (en) * | 1981-05-30 | 1982-12-16 | Henkel KGaA, 4000 Düsseldorf | CONTINUOUS PROCESS FOR REACTION OF COMPONENTS EXISTING IN LIQUID PHASE WITH COMPONENTS EXISTING IN GRINNED FORM |
| JPS589829A (en) * | 1981-07-07 | 1983-01-20 | Asahi Glass Co Ltd | Improvement in heat recovery of glass smelting furnace |
| DE3423945A1 (en) * | 1984-06-29 | 1986-01-09 | Henkel KGaA, 4000 Düsseldorf | METHOD AND DEVICE FOR THE CONTINUOUS HYDROTHERMAL PRODUCTION OF SODIUM SILICATE SOLUTIONS |
| DE4141625A1 (en) * | 1991-12-17 | 1993-06-24 | Gruenzweig & Hartmann | METHOD FOR MELTING SILICATIC RAW MATERIALS, ESPECIALLY FOR THE PRODUCTION OF MINERAL WOOL, AND DEVICE FOR PREHEATING THE RAW MATERIAL BLOCK |
| US5785940A (en) * | 1996-03-18 | 1998-07-28 | Pq Corporation | Silicate reactor with submerged burners |
| FR2816529B1 (en) * | 2000-11-13 | 2003-09-05 | Rech S De Traitement Des Deche | PROCESS FOR TREATING INCINERATION RESIDUES AND INSTALLATION FOR CARRYING OUT SUCH A PROCESS |
| AT411363B (en) * | 2002-02-21 | 2003-12-29 | Tribovent Verfahrensentwicklg | DEVICE FOR MELTING DUST |
-
2006
- 2006-11-27 DE DE102006055786A patent/DE102006055786B4/en not_active Expired - Fee Related
-
2007
- 2007-11-17 EP EP07846653A patent/EP2086893A1/en not_active Withdrawn
- 2007-11-17 CN CNA2007800440762A patent/CN101541692A/en active Pending
- 2007-11-17 CA CA002673495A patent/CA2673495A1/en not_active Abandoned
- 2007-11-17 BR BRPI0719311-4A2A patent/BRPI0719311A2/en not_active Application Discontinuation
- 2007-11-17 WO PCT/EP2007/009964 patent/WO2008064790A1/en active Application Filing
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102730707A (en) * | 2011-04-02 | 2012-10-17 | 青岛东岳泡花碱有限公司 | System for recycling heat energy from sodium silicate production technology |
| CN108946779A (en) * | 2018-09-30 | 2018-12-07 | 上海高桥大同净水材料有限公司 | A kind of production method and production system of high-purity Polyaluminium Sulfate Chloride |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2008064790A1 (en) | 2008-06-05 |
| DE102006055786B4 (en) | 2010-03-18 |
| BRPI0719311A2 (en) | 2014-02-04 |
| CA2673495A1 (en) | 2008-06-05 |
| DE102006055786A1 (en) | 2008-06-05 |
| EP2086893A1 (en) | 2009-08-12 |
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