DE2929974A1 - Incinerator and cupola furnace gases purification - in pre-absorber, cyclones, venturi scrubber and oxidation basin for dust and toxic gas removal - Google Patents
Incinerator and cupola furnace gases purification - in pre-absorber, cyclones, venturi scrubber and oxidation basin for dust and toxic gas removalInfo
- Publication number
- DE2929974A1 DE2929974A1 DE19792929974 DE2929974A DE2929974A1 DE 2929974 A1 DE2929974 A1 DE 2929974A1 DE 19792929974 DE19792929974 DE 19792929974 DE 2929974 A DE2929974 A DE 2929974A DE 2929974 A1 DE2929974 A1 DE 2929974A1
- Authority
- DE
- Germany
- Prior art keywords
- dust
- exhaust gas
- ash
- washing
- gases
- 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.)
- Granted
Links
- 239000000428 dust Substances 0.000 title claims abstract description 14
- 239000007789 gas Substances 0.000 title claims description 30
- 230000003647 oxidation Effects 0.000 title abstract 2
- 238000007254 oxidation reaction Methods 0.000 title abstract 2
- JTJMJGYZQZDUJJ-UHFFFAOYSA-N phencyclidine Chemical class C1CCCCN1C1(C=2C=CC=CC=2)CCCCC1 JTJMJGYZQZDUJJ-UHFFFAOYSA-N 0.000 title abstract 2
- 239000002341 toxic gas Substances 0.000 title abstract 2
- 239000006096 absorbing agent Substances 0.000 title 1
- 238000000746 purification Methods 0.000 title 1
- 238000005406 washing Methods 0.000 claims abstract description 14
- 239000010802 sludge Substances 0.000 claims abstract description 12
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 8
- 239000001257 hydrogen Substances 0.000 claims abstract description 8
- -1 hydrogen halides Chemical class 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims description 19
- 239000007788 liquid Substances 0.000 claims description 10
- 238000010521 absorption reaction Methods 0.000 claims description 6
- 238000006386 neutralization reaction Methods 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000005201 scrubbing Methods 0.000 claims description 4
- 239000002699 waste material Substances 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 3
- 239000013505 freshwater Substances 0.000 claims description 3
- 150000003839 salts Chemical class 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 238000004056 waste incineration Methods 0.000 claims description 3
- 210000005053 lamin Anatomy 0.000 claims 1
- 239000002912 waste gas Substances 0.000 abstract description 3
- 235000011116 calcium hydroxide Nutrition 0.000 abstract description 2
- 239000000920 calcium hydroxide Substances 0.000 abstract description 2
- 239000000203 mixture Substances 0.000 abstract 1
- 230000003134 recirculating effect Effects 0.000 abstract 1
- 238000005507 spraying Methods 0.000 abstract 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 4
- 235000011941 Tilia x europaea Nutrition 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 4
- 239000004571 lime Substances 0.000 description 4
- 229910000039 hydrogen halide Inorganic materials 0.000 description 3
- 239000012433 hydrogen halide Substances 0.000 description 3
- 239000008267 milk Substances 0.000 description 3
- 210000004080 milk Anatomy 0.000 description 3
- 235000013336 milk Nutrition 0.000 description 3
- 230000003472 neutralizing effect Effects 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000012266 salt solution Substances 0.000 description 2
- 241000065675 Cyclops Species 0.000 description 1
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 239000003929 acidic solution Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 239000012717 electrostatic precipitator Substances 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000000643 oven drying Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 229910052711 selenium Inorganic materials 0.000 description 1
- 239000011669 selenium Substances 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000001694 spray drying Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/38—Removal of waste gases or dust
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
- F23J15/04—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material using washing fluids
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Treating Waste Gases (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren zur Entstaubung undThe invention relates to a method for dedusting and
Schadgasabsorption, insbesondere Absorption von Halogenwasserstoffen von Abgasen aus Abfallverbrennungsanlagen.Absorption of harmful gases, in particular absorption of hydrogen halides of waste gases from waste incineration plants.
Die Reinigllng der Abgase aus Verbrennungsanlagen mit Halogenwasserstoffimissionen erfolgt in der Regel auf trockenem Wege für die Schwebstoffe, d.h. hierzu werden Heißelektrofiler oder Heißgewebefilter verwendet. Anschließend findet zur selektiven Absorntion der Halogenwasserstoffe eine Gassättigung und Gaswäsche mit verdünnter Säure statt, deren Konzentration durch Frischwasserzugabe geregelt wird. Hierdurch wird die Endreinheit der Abgase bestimmt. Das außerdem im Abgas enthaltene SO2 wird heute im allgemeinen noch nicht absorbiert, sondern verbleibt im Abgas. Die bei der Halogenwasserstoffabsorption entstehende ä':irelösung wird getrennt neutralisiert und es fällt eine heiße neutrale Selzldslmg als Abfall an, die zu ganz erheblicht Abwasserproblemen führt, da sie die Salzfracht der Vorfluter (sofern eine einleitung erfolgt) erhöht.The cleaning of the exhaust gases from incineration plants with hydrogen halide emissions usually takes place in a dry way for the suspended solids, i.e. for this purpose Hot electrostatic precipitator or hot tissue filter used. Then takes place for selective Absorption of the hydrogen halides, gas saturation and gas scrubbing with diluted Acid instead, the concentration of which is regulated by adding fresh water. Through this the final purity of the exhaust gases is determined. The SO2 also contained in the exhaust gas is generally not yet absorbed today, but remains in the exhaust gas. The at The solution resulting from the absorption of hydrogen halide is neutralized separately and a hot, neutral selenium is produced as waste, which is too much Wastewater problems leads to it, as it carries the salt load of the receiving waters (if a discharge takes place) increased.
Soll auch der im Abgas enthaltene S02-Gehalt absorbiert werden, so erhöht sich der Verbrauch von Neutralisationsmittel entsprechend und es fällt außer Salzlösung auch Salzschlamm an, der vor der Ableitung des Abwassers abzutrennen ist. Die Trocknung von Salzlösungen im direkten Kontakt mit heißen Gasen bereitet wegen der notwendigen Kristallisation erhebliche Probleme.If the SO2 content contained in the exhaust gas is also to be absorbed, see above the consumption of neutralizing agent increases accordingly and it is excluded Saline solution also includes salt sludge, which must be separated off before the sewage is discharged is. The drying of salt solutions in direct contact with hot gases prepares considerable problems because of the necessary crystallization.
Pifgabe der Erfindung ist es, unter Ausnutzung des Verfahrens wie es aus der Hauptanmeldung für die Entstaubung und Reinigung von Gichtgas bekannt ist, eine Möglichkeit zu schaffen, Halogenwasserstoffe und ggf. zusätzlich S02 aus dem Abgas zu entfernen.The object of the invention is to make use of the method such as it is known from the main application for the dedusting and cleaning of furnace gas is to create a way of eliminating hydrogen halides and possibly also S02 to remove the exhaust gas.
Gelöst wird diese Aufgabe unter Übernahme der Verfahrensschritte 1 bis C Her Hauptanmeldung dsHllrch, daß d-. !aschflüssigkeit hei der Neutralistion oier vor der Feinstverteilllng des Waschwassers zur Abkühlung und Sch arnmtrocknung Asche zur Erhöhung der Gesamtfeststoffmenge zugesetzt wird, wobei die Zusatzmenge von dem Gehalt an Staub im Abgas abhängt.This task is solved by taking process steps 1 to C Her main application dsHllrch that d-. Ash liquid is called neutralization oier before the finest distribution of the washing water for cooling and oven drying Ash is added to increase the total solids, with the added amount depends on the level of dust in the exhaust gas.
Bei diesem Verfahren wird im Wäscher rit einer schwach sauren Waschflüssigkeit gearbeitet, aber es ist auch nach einer weiteren Ausgestaltung der Erfindung möglich, durch Riickführung der Waschflüssigkeit nach der Neutralisation in den Wäscher zusätzlich zur Entfernung der Halogenwasserstoffe in diesem Verfahrensschritt 502 zu entfernen.In this process, a weakly acidic washing liquid is used in the washer worked, but it is also possible according to a further embodiment of the invention, by returning the washing liquid to the scrubber after neutralization to remove the hydrogen halides in this process step 502.
Als Asche kann gemäß der Erfindung der Rückstand aus den üblicherweise der Verbrennungsanlage nachgeschalteten, bzw.According to the invention, the residue from the usually downstream of the incineration plant or
dem erfindungsgemäßen Verfahren vorgeschalteten E-Filtern verwendet werden.E-filters upstream of the process according to the invention are used will.
Das Verfahren soll anschließend anhand zweier Flußdiagramme näher erläutert werden.The method will then be described in more detail using two flow charts explained.
In der Figur 1 ist ein Flußdiagramm dargestellt, das nahezu vollständig mit dem Diagramm der Hauptanmeldung übereinstimmt. Lediglich erfolgt im Unterschied zu der Reinigung und Entstaubung von Gichtgas bei dem vorliegenden Verfshren im ersten Verfahrensschritt nur eine Vorentstaubung und keine Abkühlung. Im einzelnen ist in dem Diagramm der Staubsack mit 1 bezeichnet und der anschließende Trockner, bzw.A flow chart is shown in FIG. 1 which is almost complete corresponds to the diagram of the main application. The only difference is made on the cleaning and dedusting of furnace gas in the present process in first process step only a pre-dedusting and no cooling. In detail the dust bag is denoted by 1 in the diagram and the subsequent dryer, respectively.
Kühler mit 2. Das aus dem Staubsack austretende vorentstaubte heiße Abgas gelangt in den Trockner bzw. Kühler, wo von oben feinstverteiltes schlammhaltiges Kreislaufwaschwasser zur Abkühlung und Schlammtrocknung eingegeben wird. Das Gas gelangt daen in Zyklope 3, wo eine Abscheidung des Hauptteiles des im Gas zurückgebliebener Staubes erfolgt. Möglich ist auch daß der gesamte abgezogene trockene Rückstand (Schlamm) den Zvklonen zugeführt wird. Von den Zykonen wird das Gas dem Wäscher 4 zugeleitet, wobei hier in einer erster @tufe des Waschverfahrens mit Frischwasser eine @bkühlung bis zum Sättigumgspunkt erfolgt und danach in einer Feinwäsche die Reststaubanteile entfernt werden, sowie bei der in Figur 1 dargestellten Anlage die Halogenwasserstoffe und SO2. Das gereinigte Abgas steht dann zur weiteren Verwendung am Ab 1 bereit. Ein Abzugsgebläse ist hier mit Q angedeutet.Cooler with 2. The pre-dedusted hot one emerging from the dust bag Exhaust gas gets into the dryer or cooler, where finely distributed sludge from above Circuit wash water is entered for cooling and sludge drying. The gas got daen in Cyclops 3, where a separation of the main part of the in the gas remaining dust takes place. It is also possible that the entire withdrawn dry residue (sludge) is fed to the Zvklonen. Of the Zykonen it will Gas fed to the scrubber 4, here in a first stage of the washing process Fresh water is used to cool down to the saturation point and then in one Delicates the residual dust can be removed, as well as in the one shown in Figure 1 Plant the hydrogen halides and SO2. The cleaned exhaust gas is then available for further use Ready to use on from 1. An exhaust fan is indicated by Q here.
Im Wäscher 4 ist ein Kalksilo 5 sowie eine Kalkmilchvorlage 6 zugeordnet und das Waschwasser gelangt aus dem Wäscher in ein bpcken 7, wo Gleich?eitig aus der Kalkmilchvorlage 6 das Neutralisationsmittel eingeleitet wird. Das abgezogene Schlammwasser wird dem Trockner bzw.In the scrubber 4, a lime silo 5 and a lime milk reservoir 6 are assigned and the washing water comes out of the washer in a pool 7, where equality from the lime milk reservoir 6, the neutralizing agent is introduced. The withdrawn Sludge water is fed to the dryer or
Kühler 2 zugeleitet, während die geklärte Waschflüssigkeit wieder in den Wäscher 4 eingeleitet wird. Je nach dem Staubanteil im as ist es notwendig r Frzeugung einer Schlamm-Menge Asche zuzusetzen. Bei dem in Figur 1 dergestellten Verfahren erfolgt die Aschezugabe in die kalkmilchvorlage 6 aus dem Silo 10. Möglich ist aber auch die Zugabe ven Asche vor Einleitung in den Trockner bzw.Cooler 2 fed while the clarified washing liquid again is introduced into the scrubber 4. Depending on the amount of dust in the as, it is necessary To produce a sludge quantity of ash to be added. In the one shown in FIG In the process, the ash is added to the lime milk storage tank 6 from the silo 10. Possible but it is also possible to add ash before it is fed into the dryer or
Kühler 2. Die Asche kann aus einem L-Filter stammen, der üblicherweise der Verbrennungsanlage nachgeschaltet ist, d.b. der vorlieenden in der Figur 1 dargestellten Anlage dann vorgeschaltet wäre. Sollte keine Asche zur Verfügung stehen, so kann auch ohne wieteres beispielsweise gand (@uarzsand) als schlammerzeugendes Mittel zugesetzt werden.Cooler 2. The ash can come from an L-filter, which is usually downstream of the incinerator, d.b. the present one shown in FIG System would then be connected upstream. If there is no ash available, so can even without another, for example, gand (@uarzsand) as a sludge-producing agent can be added.
Aus der Eigur 2 ist ein geringfügig ahgewandeltes Verfahren zu ersehen, und zwar wird hier im Wäscher mit. einer schwach sauren Lösung gearbeitet und es erfolgt keine Rückleitung der geklärten Waschflüssigkeit aus Neutralisationsbecken 7 in den Wäscher 4. Bei dieser Verfahrensweise wird dann nur Halogenwasserstoff nicht aber SO2 abgeschieden.A slightly modified procedure is taken from Eigur 2 to see, and that is here in the washer. a weakly acidic solution worked and there is no return of the clarified washing liquid from the neutralization basin 7 in the scrubber 4. With this procedure, only hydrogen halide is produced but not SO2 deposited.
Per besondere Vorteil des erfindungsgemäßen Verfahrens ist, daß bei der gemeinsamen Zerstäubungstrocknung vor Salzlösungen mit geeigneten Zuschlagstoffen wie beispielsweise Asche, ein rieselfähiges, deponierfähiges, trockenes Produkt enfällt, das keine Probleme bei der Abfallbeseitigung, wie sie bei saurem Abfallschlamm entstehen, bereitet.The particular advantage of the method according to the invention is that at the common spray drying before salt solutions with suitable additives such as ash, a free-flowing, landfillable, dry product no problems in the disposal of waste, as they are with acid waste sludge arise, prepare.
Pas erfindungsgemäße Verfahren kann - wie sich aus den obigen Ausführungen ergiht - die Gesamtreinigung des Gases von Schadstoffen aber auch von Schwebestoffen vornehmen, d.h. es kann auch auf die bei den ietzigen Verbrernungsanlagen vorhandenen Abscheider z.B. F-Filter verzichtet werden, wobei dann der "Zuschlagsstoff" noch im Abgas enthalten ist und zwingend bei der Wäsche zu der gewünschten Schlammbildung führt.The method according to the invention can - as can be seen from the statements above Result - the total cleaning of the gas from pollutants but also from suspended matter make, i.e. it can also use the existing incineration plants Separator e.g. F-filter can be dispensed with, whereby then the "aggregate" still is contained in the exhaust gas and is essential for the desired sludge formation during washing leads.
rs sei roch darauf hingewiesen, daß die neutralisation im Becken 7 mit Kalkmilch (wie angegeben) oder alloh einem anderen neutralisationsmittel erfolgen kann.rs should be noted that the neutralization in the basin 7 with milk of lime (as indicated) or with another neutralizing agent can.
LeerseiteBlank page
Claims (3)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19792929974 DE2929974A1 (en) | 1979-07-20 | 1979-07-20 | Incinerator and cupola furnace gases purification - in pre-absorber, cyclones, venturi scrubber and oxidation basin for dust and toxic gas removal |
| PCT/DE1979/000128 WO1980000797A1 (en) | 1978-10-23 | 1979-10-23 | Process and equipment for dust removing and absorption of harmful gases issuing from incinerators and hot air ovens |
| US06/194,292 US4317806A (en) | 1978-10-23 | 1980-06-23 | Method and apparatus for dedusting and absorption of contaminating gases being the exhaust gases of waste-incinerating devices and hot-air cupola furnaces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19792929974 DE2929974A1 (en) | 1979-07-20 | 1979-07-20 | Incinerator and cupola furnace gases purification - in pre-absorber, cyclones, venturi scrubber and oxidation basin for dust and toxic gas removal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE2929974A1 true DE2929974A1 (en) | 1981-02-12 |
| DE2929974C2 DE2929974C2 (en) | 1988-08-04 |
Family
ID=6076640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19792929974 Granted DE2929974A1 (en) | 1978-10-23 | 1979-07-20 | Incinerator and cupola furnace gases purification - in pre-absorber, cyclones, venturi scrubber and oxidation basin for dust and toxic gas removal |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE2929974A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106582217B (en) * | 2016-10-31 | 2019-10-22 | 武汉船用机械有限责任公司 | A flue gas scrubbing device and system suitable for crude oil tankers |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2448413A1 (en) * | 1973-10-10 | 1975-04-24 | Du Pont | PROCESS FOR CLEANING HOT GAS FLOWS FROM UNWANTED COMPONENTS |
| DE2408815A1 (en) * | 1974-02-23 | 1975-09-04 | Bischoff Gasreinigung | Removal of corrosive gases from incinerator smoke - by water washing in tower with pressure regulating system maintaining pressure in furnace |
| DE2431130B2 (en) * | 1974-06-28 | 1978-06-29 | Walther & Cie Ag, 5000 Koeln | Process for removing acidic components from exhaust gases |
| DE2847047A1 (en) * | 1977-10-31 | 1979-05-10 | William M Nelms | PROCESS FOR DESULFURIZATION OF SULFUR-CONTAINING PROCESS GASES |
| DE2749886A1 (en) * | 1977-11-08 | 1979-05-10 | Saarberg Hoelter | Salt load disposal in flue gas desulphurisation plant - by spraying saturated wash water upstream of electrofilter |
| DE2849607A1 (en) * | 1977-11-17 | 1979-05-23 | Ciba Geigy Ag | PROCESS FOR CLEANING THE EXHAUST GAS FROM INDUSTRIAL STOVES, IN PARTICULAR FROM WASTE INCINERATION PLANTS |
| DE2846457C2 (en) * | 1978-10-23 | 1986-09-25 | Leisegang Umwelttechnik KG, 1000 Berlin | Process and system for furnace gas dedusting and harmful gas absorption for a hot blast cupola furnace |
-
1979
- 1979-07-20 DE DE19792929974 patent/DE2929974A1/en active Granted
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2448413A1 (en) * | 1973-10-10 | 1975-04-24 | Du Pont | PROCESS FOR CLEANING HOT GAS FLOWS FROM UNWANTED COMPONENTS |
| DE2408815A1 (en) * | 1974-02-23 | 1975-09-04 | Bischoff Gasreinigung | Removal of corrosive gases from incinerator smoke - by water washing in tower with pressure regulating system maintaining pressure in furnace |
| DE2431130B2 (en) * | 1974-06-28 | 1978-06-29 | Walther & Cie Ag, 5000 Koeln | Process for removing acidic components from exhaust gases |
| DE2847047A1 (en) * | 1977-10-31 | 1979-05-10 | William M Nelms | PROCESS FOR DESULFURIZATION OF SULFUR-CONTAINING PROCESS GASES |
| DE2749886A1 (en) * | 1977-11-08 | 1979-05-10 | Saarberg Hoelter | Salt load disposal in flue gas desulphurisation plant - by spraying saturated wash water upstream of electrofilter |
| DE2849607A1 (en) * | 1977-11-17 | 1979-05-23 | Ciba Geigy Ag | PROCESS FOR CLEANING THE EXHAUST GAS FROM INDUSTRIAL STOVES, IN PARTICULAR FROM WASTE INCINERATION PLANTS |
| DE2846457C2 (en) * | 1978-10-23 | 1986-09-25 | Leisegang Umwelttechnik KG, 1000 Berlin | Process and system for furnace gas dedusting and harmful gas absorption for a hot blast cupola furnace |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2929974C2 (en) | 1988-08-04 |
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