EP0079081A2 - Atomizing nozzles, SO2 reactors and flue gas cleaning plants - Google Patents
Atomizing nozzles, SO2 reactors and flue gas cleaning plants Download PDFInfo
- Publication number
- EP0079081A2 EP0079081A2 EP82110320A EP82110320A EP0079081A2 EP 0079081 A2 EP0079081 A2 EP 0079081A2 EP 82110320 A EP82110320 A EP 82110320A EP 82110320 A EP82110320 A EP 82110320A EP 0079081 A2 EP0079081 A2 EP 0079081A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- gas
- liquid
- nozzle
- orifice
- atomizing
- 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
Images
Classifications
-
- 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
- F23J15/003—Arrangements of devices for treating smoke or fumes for supplying chemicals to fumes, e.g. using injection devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/02—Spray pistols; Apparatus for discharge
- B05B7/04—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
- B05B7/0416—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid
- B05B7/0441—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid with one inner conduit of liquid surrounded by an external conduit of gas upstream the mixing chamber
- B05B7/0475—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid with one inner conduit of liquid surrounded by an external conduit of gas upstream the mixing chamber with means for deflecting the peripheral gas flow towards the central liquid flow
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/02—Spray pistols; Apparatus for discharge
- B05B7/08—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point
- B05B7/0892—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point the outlet orifices for jets constituted by a liquid or a mixture containing a liquid being disposed on a circle
Definitions
- the present invention relates to a nozzle for the atomization of a liquid in accordance with the preamble of patent claim 1, to an SO 2 reactor and to a flue gas cleaning plant.
- Nozzles of different types are used to atomize liquids.
- One class of nozzles that are used to create a very finely dispersed liquid mist are so-called two-phase nozzles.
- a pressurized gas is used to bring about atomization, which takes place when the gas, which has been accelerated under expansion, acts on a liquid surface that is travelling at a velocity that differs greatly from that of the gas.
- Two-phase nozzles can be divided into two types, which differ with respect to whether the two phases meet inside or outside the nozzle. In the technical literature, these two types are termed internal-mix and external-mix nozzles, respectively.
- Two-phase nozzles of the internal-mix type, to which category the present invention can be assigned are also characterized by the fact that, given otherwise uniform conditions, a more finely dispersed mist is produced in a nozzle in which the linear dimensions of the atomization zone are of a given size than is the case in a geometrically identical nozzle of larger dimensions.
- nozzles with small passages are often used to, for example, atomize pure water in connection with the evaporative cooling of a gas, or in connection with the spray-drying of a solution.
- nozzles designed with a view towards the wear that would occur if these nozzles were to be used for the atomizing of liquids with more abrasive properties, e.g. suspensions containing hard, solid particles.
- a number of nozzles are often incorporated in a bank of nozzles, consisting of a large number of nozzles each of which is supplied with liquid and atomizing gas.
- Such a bank of nozzles has the disadvantage that if the relatively narrow passages in one nozzle become clogged, this contributes relatively greatly towards increasing the flow resistance over the nozzle in question and thereby to an uneven distribution of atomized liquid in the chamber in which the bank of nozzles is located.
- two-phase nozzles of the conventional type are not very well suited for the atomizing of large quantities of suspensions containing relatively large solid particles, as in connection with the scrubbing of flue gases to remove sulphur dioxide according to the so-called dry scrubbing method, which method is described in greater detail below.
- the purpose of the present invention is to specify a nozzle that possesses such qualities that the aforementioned drawbacks are eliminated.
- the nozzle according to the invention possesses such characteristics that the distribution of the liquid sprayed through the different mist orifices during operation is particularly uniform, even when a large number of units are supplied through parallel connection to common mains for the supply of both liquid and atomizing gas. For the uninitiated, this might appear to be a somewhat trivial characteristic, but this is not the case. In general, it is extremely difficult to obtain a very uniform distribution of liquid by connecting a number of nozzles in parallel. Furthermore, the risk of clogging of the nozzle has been reduced, which is of very great importance when a suspension of solid particles in a liquid is to be atomized.
- 1 is a nozzle consisting of a symmetric central body 2 with a cavity 3 into which a central liquid main feeds.
- the nozzle is equipped with three symmetrically arranged mist orifices 5, two of which are shown in the figure.
- the number of mist orifices can, however, be varied between three and ten depending upon the application.
- Each mist orifice consists of a tubular housing 6 provided at its outer end with an outlet opening 9 which is circular and has a diameter of between 1 and 10 mm. Inside the mist orifice is an atomizing zone 11 with a radially symmetric shape.
- a tubular gas orifice 12 is arranged upstream of the outlet opening 9.
- the ratio between the diameter of the outlet opening 9 and the inside diameter of the gas orifice 12 is between 0.1 and 0.5.
- the longitudinal axis 7 of the mist orifice coincides with the longitudinal axis of both the atomizing zone and the gas orifice, these together thereby forming a symmetric configuration.
- the imaginary extension of the longitudinal axis of every mist orifice emanates from the same point on the longitudinal axis 8 of the central body and forms an angle v - with this axis of between 20 and 90 0.
- the cavity 3 forms an integral volume together with the liquid main 4 , which volume envelops the gas orifices 12 and their atomizing zones 11.
- the gas orifices 12 are further connected to a common gas distribution line 15, which is concentrically arranged around the liquid main 4.
- the function of the nozzle is as follows: When liquid is supplied through the central liquid main 4, the cavity 3 inside the central body 2 is filled, as are the cavities in the mist orifices.
- the liquid is supplied at a pressure of between 2 and 12 bar.
- atomizing gas of sufficiently high pressure between 2 and 12 bar, but higher than the pressure of the liquid
- an atomizing zone 11 is formed in front of each gas orifice.
- a two-phase flow will therefore exist in the narrowest section of the mist orifice, i.e. at its outlet opening 9. If the pressure inside the mist orifice is sufficiently high, the flow through this section, i.e. in the entire atomizing zone 11, will also be of a critical character.
- the invention is distinguished by, among other things, the fact that the risk of clogging has been eliminated through the relatively large size of all liquid passages.
- the zone in which the flow velocity is high is designed so that surrounding boundary surfaces form a small angle to the flow direction, which contributes towards a low wear rate.
- the area exposed to the greatest wear has further been designed in such a manner that a ceramic insert mounted there as a wear protection liner 14, arranged on a seat 13, exists in a more or less ; stressless state, which permits the use of material of low tensile strength as a wear protection liner.
- the nozzle is designed for the atomizing of a liquid flow of between 0 and . 20 000 kg/n2s figured over the area of the outlet opening 9, and the gas flow over the same area is between 500 and 2 500 kg/m 2 s.
- FIG 2 shows a flue gas cleaning plant 20 for the cleaning of flue gases from a coal-fired power and/or heating plant (not shown).
- the flue gases are first conducted to an electrostatic precipitator 21, which separates about 90% of the dust formed by combustion.
- the still hot and sulphur-dioxide- bearing flue gases are then conducted to an S0 2 reactor 22 in which a finely dispersed lime slurry is sprayed into the flue gases. This is done with the aid of the nozzles 1 mounted in the reactor inlet, which are supplied with lime slurry prepared in a feed tank 23 and pumped at high pressure via a liquid line 24- to the central liquid mains 4 for the nozzles 1 (figure 1).
- the lime reacts with the sulphur dioxide and binds it.
- the amount of water and the temperature are adjusted so that all the water evaporates before the lime reaches the bottom, which results in dry residual products and greatly facilitates their handling.
- Some sulphur- bearing lime sinks to the bottom, where it is taken out, while the remainder continues to a fabric filter 25, where most of the remaining flue gas particles adhere to the filter material.
- the filter bags are blown clean by short pulses of compressed air. The dust that is dislodged falls to the bottom and is discharged.
- the flue gases - now cleaned from dust, ash and sulphur dioxide - are then discharged via the flue gas fan 26 into the atmosphere through the stack 27.
- the flue gases can be cleaned so efficiently - via this dry scrubbing method, where the nozzles according to the invention are employed to provide an effective dispersion of the supplied absorbent suspension - that the leaving sulphur concentration is max. 0.1 grams of sulphur per megajoule of supplied fuel, which is equivalent to a collection efficiency of 70-85%, depending upon the sulphur content of the coal.
- the distribution of the liquid flow from each mist orifice was studied in the following manner.
- the liquid suspension used in the test consisted of a mixture of 60% water, 30% fly ash from powdered coal firing and 10% of a mixture of calcium sulphite and calcium hydroxide (all percentages by weight).
- the liquid flow from each of the mist orifices was then measured as the aggregate liquid flow was varied between 1 500 kg/h and 12 000 kg/h.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Nozzles (AREA)
- Treating Waste Gases (AREA)
- Gas Separation By Absorption (AREA)
- Seasonings (AREA)
- Photoreceptors In Electrophotography (AREA)
- Luminescent Compositions (AREA)
Abstract
Description
- The present invention relates to a nozzle for the atomization of a liquid in accordance with the preamble of patent claim 1, to an SO2 reactor and to a flue gas cleaning plant.
- Nozzles of different types are used to atomize liquids. One class of nozzles that are used to create a very finely dispersed liquid mist are so-called two-phase nozzles..In these devices, a pressurized gas is used to bring about atomization, which takes place when the gas, which has been accelerated under expansion, acts on a liquid surface that is travelling at a velocity that differs greatly from that of the gas. Two-phase nozzles can be divided into two types, which differ with respect to whether the two phases meet inside or outside the nozzle. In the technical literature, these two types are termed internal-mix and external-mix nozzles, respectively.
- Two-phase nozzles of the internal-mix type, to which category the present invention can be assigned, are also characterized by the fact that, given otherwise uniform conditions, a more finely dispersed mist is produced in a nozzle in which the linear dimensions of the atomization zone are of a given size than is the case in a geometrically identical nozzle of larger dimensions. In view of this circumstance, among others, nozzles with small passages are often used to, for example, atomize pure water in connection with the evaporative cooling of a gas, or in connection with the spray-drying of a solution. Nor are such nozzles designed with a view towards the wear that would occur if these nozzles were to be used for the atomizing of liquids with more abrasive properties, e.g. suspensions containing hard, solid particles. When . large quantities of gas are to be cooled evaporatively, for example, a number of nozzles are often incorporated in a bank of nozzles, consisting of a large number of nozzles each of which is supplied with liquid and atomizing gas. Such a bank of nozzles has the disadvantage that if the relatively narrow passages in one nozzle become clogged, this contributes relatively greatly towards increasing the flow resistance over the nozzle in question and thereby to an uneven distribution of atomized liquid in the chamber in which the bank of nozzles is located. Thus, two-phase nozzles of the conventional type are not very well suited for the atomizing of large quantities of suspensions containing relatively large solid particles, as in connection with the scrubbing of flue gases to remove sulphur dioxide according to the so-called dry scrubbing method, which method is described in greater detail below.
- The purpose of the present invention is to specify a nozzle that possesses such qualities that the aforementioned drawbacks are eliminated.
- This is realized with a nozzle that exhibits the characteristics stated in the following patent claims. It has surprisingly emerged that the nozzle according to the invention possesses such characteristics that the distribution of the liquid sprayed through the different mist orifices during operation is particularly uniform, even when a large number of units are supplied through parallel connection to common mains for the supply of both liquid and atomizing gas. For the uninitiated, this might appear to be a somewhat trivial characteristic, but this is not the case. In general, it is extremely difficult to obtain a very uniform distribution of liquid by connecting a number of nozzles in parallel. Furthermore, the risk of clogging of the nozzle has been reduced, which is of very great importance when a suspension of solid particles in a liquid is to be atomized.
- The invention will now be described in greater detail with reference to the appended figures, where
- figure 1 shows a schematic cross-section of a nozzle according to the invention; and
- figure 2 shows the nozzle installed in a flue gas cleaning plant.
- In figure 1, 1 is a nozzle consisting of a symmetric central body 2 with a
cavity 3 into which a central liquid main feeds. In the version shown, the nozzle is equipped with three symmetrically arrangedmist orifices 5, two of which are shown in the figure. The number of mist orifices can, however, be varied between three and ten depending upon the application. Each mist orifice consists of a tubular housing 6 provided at its outer end with an outlet opening 9 which is circular and has a diameter of between 1 and 10 mm. Inside the mist orifice is an atomizingzone 11 with a radially symmetric shape. Atubular gas orifice 12 is arranged upstream of the outlet opening 9. The ratio between the diameter of the outlet opening 9 and the inside diameter of thegas orifice 12 is between 0.1 and 0.5. The longitudinal axis 7 of the mist orifice coincides with the longitudinal axis of both the atomizing zone and the gas orifice, these together thereby forming a symmetric configuration. Furthermore, the imaginary extension of the longitudinal axis of every mist orifice emanates from the same point on the longitudinal axis 8 of the central body and forms an angle v - with this axis of between 20 and 900. Thecavity 3 forms an integral volume together with the liquid main 4, which volume envelops thegas orifices 12 and their atomizingzones 11. Thegas orifices 12 are further connected to a commongas distribution line 15, which is concentrically arranged around the liquid main 4. - In brief, the function of the nozzle is as follows: When liquid is supplied through the central liquid main 4, the
cavity 3 inside the central body 2 is filled, as are the cavities in the mist orifices. The liquid is supplied at a pressure of between 2 and 12 bar. When atomizing gas of sufficiently high pressure (between 2 and 12 bar, but higher than the pressure of the liquid) is supplied through thegas orifices 12, an atomizingzone 11 is formed in front of each gas orifice. A two-phase flow will therefore exist in the narrowest section of the mist orifice, i.e. at its outlet opening 9. If the pressure inside the mist orifice is sufficiently high, the flow through this section, i.e. in the entireatomizing zone 11, will also be of a critical character. As is evident from the above description, the invention is distinguished by, among other things, the fact that the risk of clogging has been eliminated through the relatively large size of all liquid passages. The zone in which the flow velocity is high is designed so that surrounding boundary surfaces form a small angle to the flow direction, which contributes towards a low wear rate. The area exposed to the greatest wear has further been designed in such a manner that a ceramic insert mounted there as awear protection liner 14, arranged on a seat 13, exists in a more or less ; stressless state, which permits the use of material of low tensile strength as a wear protection liner. The nozzle is designed for the atomizing of a liquid flow of between 0 and . 20 000 kg/n2s figured over the area of the outlet opening 9, and the gas flow over the same area is between 500 and 2 500 kg/m2s. - Figure 2 shows a flue
gas cleaning plant 20 for the cleaning of flue gases from a coal-fired power and/or heating plant (not shown). The flue gases are first conducted to anelectrostatic precipitator 21, which separates about 90% of the dust formed by combustion. The still hot and sulphur-dioxide- bearing flue gases are then conducted to an S02 reactor 22 in which a finely dispersed lime slurry is sprayed into the flue gases. This is done with the aid of the nozzles 1 mounted in the reactor inlet, which are supplied with lime slurry prepared in afeed tank 23 and pumped at high pressure via a liquid line 24- to the central liquid mains 4 for the nozzles 1 (figure 1). The lime reacts with the sulphur dioxide and binds it. The amount of water and the temperature are adjusted so that all the water evaporates before the lime reaches the bottom, which results in dry residual products and greatly facilitates their handling. Some sulphur- bearing lime sinks to the bottom, where it is taken out, while the remainder continues to afabric filter 25, where most of the remaining flue gas particles adhere to the filter material. At regular intervals, the filter bags are blown clean by short pulses of compressed air. The dust that is dislodged falls to the bottom and is discharged. The flue gases - now cleaned from dust, ash and sulphur dioxide - are then discharged via theflue gas fan 26 into the atmosphere through thestack 27. In the plant described here, the flue gases can be cleaned so efficiently - via this dry scrubbing method, where the nozzles according to the invention are employed to provide an effective dispersion of the supplied absorbent suspension - that the leaving sulphur concentration is max. 0.1 grams of sulphur per megajoule of supplied fuel, which is equivalent to a collection efficiency of 70-85%, depending upon the sulphur content of the coal. - The technical effect obtained with a nozzle according to the invention can be further illustrated by the following example, which relates to the dry scrubbing method described above.
- The distribution of the liquid flow from each mist orifice was studied in the following manner. Four nozzles designed according to the invention, each equipped with five mist orifices with a minimum opening diameter of 4.0'mm, were supplied with compressed air from a common compressor and with a liquid suspension from a common pump. The liquid suspension used in the test consisted of a mixture of 60% water, 30% fly ash from powdered coal firing and 10% of a mixture of calcium sulphite and calcium hydroxide (all percentages by weight). The liquid flow from each of the mist orifices was then measured as the aggregate liquid flow was varied between 1 500 kg/h and 12 000 kg/h. The range of variation in the results, consisting of the liquid flow measured from each of the 20 mist orifices for each aggregate flow, was determined, with the following results:
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT82110320T ATE29974T1 (en) | 1981-11-09 | 1982-11-09 | NOZZLE FOR SO2 REACTORS IN FLUE GAS CLEANING INSTALLATIONS. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8106637A SE449057B (en) | 1981-11-09 | 1981-11-09 | NOZE FOR ATOMIZING A LIQUID MEDIUM |
SE8106637 | 1981-11-09 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0079081A2 true EP0079081A2 (en) | 1983-05-18 |
EP0079081A3 EP0079081A3 (en) | 1984-05-30 |
EP0079081B1 EP0079081B1 (en) | 1987-09-30 |
Family
ID=20344997
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP82110320A Expired EP0079081B1 (en) | 1981-11-09 | 1982-11-09 | Atomizing nozzles, so2 reactors and flue gas cleaning plants |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP0079081B1 (en) |
AT (1) | ATE29974T1 (en) |
CA (1) | CA1207821A (en) |
DE (2) | DE3277403D1 (en) |
DK (1) | DK157332C (en) |
FI (1) | FI73149C (en) |
NO (1) | NO158567C (en) |
SE (1) | SE449057B (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0185630A1 (en) * | 1984-12-04 | 1986-06-25 | Fläkt Aktiebolag | Media mixing nozzle assembly and a process using said assembly |
EP0198810B1 (en) * | 1985-04-16 | 1990-03-07 | Fläkt Aktiebolag | Arrangement in a contact reactor |
US5641124A (en) * | 1992-10-08 | 1997-06-24 | Abb Flakt Ab | Apparatus for cleaning gas |
WO2020025381A1 (en) * | 2018-08-03 | 2020-02-06 | Rs Rittel Gmbh | Spray lance, combustion plant and method for treating waste gas |
US11110394B2 (en) | 2017-02-03 | 2021-09-07 | Rs Rittel Gmbh | Nozzle lance, combustion plant and method for exhaust gas treatment |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2547084A (en) * | 1950-04-15 | 1951-04-03 | West Disinfecting Co | Spraying device |
FR1239405A (en) * | 1959-07-16 | 1960-08-26 | Sprinkler improvements | |
US3110444A (en) * | 1960-12-06 | 1963-11-12 | J S & W R Eakins Inc | Spray drying process and apparatus |
FR1428682A (en) * | 1964-03-10 | 1966-02-18 | Ici Ltd | Method and apparatus for spraying particulate solids and liquids |
FR2152815A1 (en) * | 1971-09-10 | 1973-04-27 | Hitachi Ltd |
-
1981
- 1981-11-09 SE SE8106637A patent/SE449057B/en unknown
-
1982
- 1982-11-08 CA CA000415112A patent/CA1207821A/en not_active Expired
- 1982-11-08 DK DK496482A patent/DK157332C/en not_active IP Right Cessation
- 1982-11-08 NO NO823705A patent/NO158567C/en not_active IP Right Cessation
- 1982-11-09 DE DE8282110320T patent/DE3277403D1/en not_active Expired
- 1982-11-09 DE DE198282110320T patent/DE79081T1/en active Pending
- 1982-11-09 EP EP82110320A patent/EP0079081B1/en not_active Expired
- 1982-11-09 AT AT82110320T patent/ATE29974T1/en active
- 1982-11-09 FI FI823845A patent/FI73149C/en not_active IP Right Cessation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2547084A (en) * | 1950-04-15 | 1951-04-03 | West Disinfecting Co | Spraying device |
FR1239405A (en) * | 1959-07-16 | 1960-08-26 | Sprinkler improvements | |
US3110444A (en) * | 1960-12-06 | 1963-11-12 | J S & W R Eakins Inc | Spray drying process and apparatus |
FR1428682A (en) * | 1964-03-10 | 1966-02-18 | Ici Ltd | Method and apparatus for spraying particulate solids and liquids |
FR2152815A1 (en) * | 1971-09-10 | 1973-04-27 | Hitachi Ltd |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0185630A1 (en) * | 1984-12-04 | 1986-06-25 | Fläkt Aktiebolag | Media mixing nozzle assembly and a process using said assembly |
US4690333A (en) * | 1984-12-04 | 1987-09-01 | Flakt Ab | Media mixing nozzle assembly |
EP0198810B1 (en) * | 1985-04-16 | 1990-03-07 | Fläkt Aktiebolag | Arrangement in a contact reactor |
US4963330A (en) * | 1985-04-16 | 1990-10-16 | Flakt Ab | Method and apparatus for treating contaminated gases |
US5641124A (en) * | 1992-10-08 | 1997-06-24 | Abb Flakt Ab | Apparatus for cleaning gas |
US11110394B2 (en) | 2017-02-03 | 2021-09-07 | Rs Rittel Gmbh | Nozzle lance, combustion plant and method for exhaust gas treatment |
WO2020025381A1 (en) * | 2018-08-03 | 2020-02-06 | Rs Rittel Gmbh | Spray lance, combustion plant and method for treating waste gas |
CN112543672A (en) * | 2018-08-03 | 2021-03-23 | Rs里特尔有限公司 | Spray gun, combustion device and method for treating exhaust gas |
US20210308701A1 (en) * | 2018-08-03 | 2021-10-07 | Rs Rittel Gmbh | Nozzle lance, combustion plant and method for exhaust gas treatment |
CN112543672B (en) * | 2018-08-03 | 2024-03-08 | Rs里特尔有限公司 | Spray gun, combustion device and method for treating exhaust gas |
Also Published As
Publication number | Publication date |
---|---|
DK496482A (en) | 1983-05-10 |
ATE29974T1 (en) | 1987-10-15 |
NO158567C (en) | 1988-10-05 |
EP0079081A3 (en) | 1984-05-30 |
DE79081T1 (en) | 1984-11-08 |
SE449057B (en) | 1987-04-06 |
CA1207821A (en) | 1986-07-15 |
FI823845A0 (en) | 1982-11-09 |
DK157332B (en) | 1989-12-18 |
DK157332C (en) | 1990-05-14 |
DE3277403D1 (en) | 1987-11-05 |
FI73149B (en) | 1987-05-29 |
EP0079081B1 (en) | 1987-09-30 |
FI73149C (en) | 1987-09-10 |
SE8106637L (en) | 1983-05-10 |
NO158567B (en) | 1988-06-27 |
NO823705L (en) | 1983-05-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
TW304895B (en) | ||
US4272499A (en) | Process and apparatus for the removal of particulate matter and reactive or water soluble gases from carrier gases | |
US2935375A (en) | Method of purifying a gaseous current containing an aerosol | |
US4819878A (en) | Dual fluid atomizer | |
US3212235A (en) | Method of and apparatus for the recovery of heat and chemicals from hot dust laden gas | |
US4483805A (en) | Process for injection of fluid, e.g. slurry in e.g. flue gases and a nozzle device for the accomplishment of the process | |
US6656250B1 (en) | Method and device for liquid purification of crude gas flows | |
US3495384A (en) | Noxious residue eliminator for smelting plant | |
US4208192A (en) | Sonic spray of H2 SD4 in a swirling heated air stream | |
US3599398A (en) | Method and apparatus for separating foreign matter from gases | |
EP0079081B1 (en) | Atomizing nozzles, so2 reactors and flue gas cleaning plants | |
KR100321375B1 (en) | Venturi scrubber dust collection system using steam injection and condensing effect | |
FI82389B (en) | MEDIABLANDANDE DYSA. | |
US2804171A (en) | Combination reverse flow vortical whirl separator and classifier | |
EP0013431A1 (en) | Rod scrubber | |
US3651620A (en) | Gas scrubber | |
US5641124A (en) | Apparatus for cleaning gas | |
RU2027526C1 (en) | Method of gas cleaning from dust | |
RU2413571C1 (en) | Ventury scrubber | |
RU2323396C1 (en) | Spraying drier | |
RU2114682C1 (en) | Plant for gas cleaning from impurities | |
SU1248635A1 (en) | Dust trap | |
RU2659051C1 (en) | Scrubber | |
Khummongkol et al. | Removal of dust by impingement of gas on a water surface | |
RU2029634C1 (en) | Liquid atomization device |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Designated state(s): AT BE CH DE FR GB IT LI NL SE |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Designated state(s): AT BE CH DE FR GB IT LI NL SE |
|
TCAT | At: translation of patent claims filed | ||
17P | Request for examination filed |
Effective date: 19840718 |
|
TCNL | Nl: translation of patent claims filed | ||
DET | De: translation of patent claims | ||
EL | Fr: translation of claims filed | ||
ITF | It: translation for a ep patent filed |
Owner name: BARZANO' E ZANARDO MILANO S.P.A. |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE CH DE FR GB IT LI NL SE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Effective date: 19870930 |
|
REF | Corresponds to: |
Ref document number: 29974 Country of ref document: AT Date of ref document: 19871015 Kind code of ref document: T |
|
REF | Corresponds to: |
Ref document number: 3277403 Country of ref document: DE Date of ref document: 19871105 |
|
ET | Fr: translation filed | ||
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed | ||
ITTA | It: last paid annual fee | ||
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 19971031 Year of fee payment: 16 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: AT Payment date: 19971113 Year of fee payment: 16 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: CH Payment date: 19971126 Year of fee payment: 16 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: NL Payment date: 19971130 Year of fee payment: 16 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19981109 Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19981109 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19981130 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19981130 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19990601 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 19981109 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
NLV4 | Nl: lapsed or anulled due to non-payment of the annual fee |
Effective date: 19990601 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20001030 Year of fee payment: 19 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20001110 Year of fee payment: 19 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: BE Payment date: 20010123 Year of fee payment: 19 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20011130 |
|
BERE | Be: lapsed |
Owner name: FLAKT A.B. Effective date: 20011130 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20020702 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20020730 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |