WO2012134405A2 - Dispositif de nettoyage de gaz d'échappement de processus de combustion - Google Patents

Dispositif de nettoyage de gaz d'échappement de processus de combustion Download PDF

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Publication number
WO2012134405A2
WO2012134405A2 PCT/SK2012/050003 SK2012050003W WO2012134405A2 WO 2012134405 A2 WO2012134405 A2 WO 2012134405A2 SK 2012050003 W SK2012050003 W SK 2012050003W WO 2012134405 A2 WO2012134405 A2 WO 2012134405A2
Authority
WO
WIPO (PCT)
Prior art keywords
exhaust gas
combustion process
cleaning device
cleaning
cleaning material
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.)
Ceased
Application number
PCT/SK2012/050003
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English (en)
Other versions
WO2012134405A3 (fr
Inventor
Jan SESTINA
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
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Publication date
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=46147009&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2012134405(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Priority to DE212012000080U priority Critical patent/DE212012000080U1/de
Publication of WO2012134405A2 publication Critical patent/WO2012134405A2/fr
Publication of WO2012134405A3 publication Critical patent/WO2012134405A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
    • F23J15/022—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow
    • F23J15/025—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow using filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/81—Solid phase processes
    • B01D53/83—Solid phase processes with moving reactants
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/02—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
    • F23G5/04—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment drying
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2258/00—Sources of waste gases
    • B01D2258/02—Other waste gases
    • B01D2258/0283—Flue gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2217/00—Intercepting solids
    • F23J2217/10—Intercepting solids by filters
    • F23J2217/105—Granular bed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2217/00—Intercepting solids
    • F23J2217/30—Intercepting solids by screens
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2217/00—Intercepting solids
    • F23J2217/50—Intercepting solids by cleaning fluids (washers or scrubbers)

Definitions

  • the invention relates to cleaning of combustion process exhaust gases, especially in the energy sector and all industries in which there is a need for exhaust gas cleaning.
  • Disposal and cleaning of combustion exhaust gases is the subject of numerous technical solutions designed to clean the exhaust gases of particulate matter such as electric filters, sleeve filters, jet filters, cyclones, water filters, etc.
  • Electric filters - electrostatic separators are systems for separating particulates from gases, essentially electric traps. They are used mainly in large stationary installations such as power plants.
  • the disadvantage of electrostatic filters is their insufficient reliability. In the event of a high voltage failure, such an electric filter suffers from irregular operation, resulting in a release of large quantities of pollutants.
  • sleeve filters are used in industrial applications. These are filters with wire baskets in stabilised rows with vertically suspended filtering sleeves the cylindrical surface of which accumulates dust and forms so called filter cake. Depending on the degree of contamination the filter cake needs to be removed at appropriate times using a variety of technological operations. Dust falling off the filtering sleeves is collected in silos and then added as an ingredient to various materials, such as fuels or cement.
  • Reverse sleeve filters are also used - in which the exhaust gas being cleaned flows in the direction opposite to that of sleeve filters. Under normal conditions exhaust gases enter into sleeves and pass through the sleeve interior with dust particles contained in the exhaust gasses being deposited at the inner wall of the sleeve. Compared to sleeve filters, reverse sleeve filters have the same space requirements and similar technological cleaning elements, but their maintenance requirements are higher.
  • Reverse jet sleeves are used in a similar fashion - they use a connected sequential digital timer controlled by a solenoid valve to feed air to the filter pipe.
  • Other facilities used include cyclones and multi-cyclones using cyclone filters in which the exhaust gases are acted upon by the centrifugal force which is used to separate dust particles from the gas stream.
  • Disadvantages of the described solutions include mainly their high operating costs and underutilization of existing energy potential of the exhaust gas and/or insufficient efficiency.
  • an device of the invention the principle of which is that it forms an enclosed space fitted with a cleaning material inlet port, combustion gas inlet port connected to the exhaust of the combustion process and a cleaned exhaust gas outlet port.
  • the device is further equipped with an endless belt conveyor for the cleaning material with a conveyor belt made of air permeable material, located in the area between the exhaust gas inlet and cleaned exhaust gas outlet ports with this endless conveyor being equipped with a variable drive.
  • the enclosed space is also equipped with a used cleaning material outlet port.
  • the movement of exhaust gases inside the device is ensured by a discharge fan fitted to the exhaust gas inlet port and/or a suction fan fitted to the cleaned exhaust gas outlet port and the endless belt conveyor is preferably fitted with conveyor belt cleaning means enabling entrance of cleaning media for endless belt conveyor cleaning at its undesired fouling, and tensioning means.
  • the tensioning means may be, for example, rollers, runners, balls, and such like installed in one of the ways well known to those skilled in the art.
  • the cleaning material is preferably selected from the group of materials including coal, lignite, biomass, sludge from water treatment plants, processed industrial waste and municipal waste or a combination thereof, with this cleaning material being carried on the belt in a single or multiple layers.
  • the belt material is air permeable and is preferably selected from a group of materials including metal, plastic, glass, ceramic and/or textile fibres or mixtures thereof, and the belt material itself may be the cleaning material.
  • the external shape and dimensions of the device of the invention, as well as the shaping of its interior space may be variable depending on the specific conditions of its use. Also for the structural material used the critical factor is only the exhaust gas inlet temperature.
  • Contaminated combustion exhaust gas containing ⁇ , SO 3 ⁇ 4 CO, TOC, carbon compounds and PM (particulate matter) are fed into the treatment area and on their way they pass through a cleaning material carried on the belt, resulting in a highly efficient separation of PM and parts of the pollutants.
  • Contingent quality improvement of the cleaning material may enhance the cleaning process and qualitative properties of the cleaned exiting exhaust gas.
  • the output products include not only cleaned exhaust gas but also modified cleaning material, that might also be dried up and enriched with PM and unburned parts of solids from the exhaust gas.
  • the exhaust gas should be preferably cleaned by removing large mechanical impurities and sparks. Technologies and equipment suitable for this purpose are well known to those skilled in the art.
  • the cleaning material has high moisture content, it can also be used to scrub the exhaust gas being cleaned.
  • the device of the invention should preferably be incorporated as a component of the combustion equipment logistic system.
  • Fig. 1 in the attached drawing shows a schematic cross-section and top view of the device of the invention.
  • the device of the invention is an enclosed space fitted with a cleaning material inlet port 11, exhaust gas inlet 21 connected to the exhaust from the combustion process, an endless conveyor belt 3 with a layer of the cleaning material spatially separating the exhaust gas inlet 21 from the exhaust gas outlet through the outlet port 22.
  • the endless belt conveyor 3 is equipped with a variable drive (not shown), tensioning means 312 and cleaning means 311 of the belt 31.
  • the outlet through the cleaned exhaust gas outlet port 22 is connected to a suction fan (not shown).
  • the device is connected to the gas exhaust of the biomass burning boiler and it was cleaning exhaust gases in the volume of 250,000 Nm 3 /h, with the content of 2500 mg/m3 PM and the temperature of 150 °C. Biomass chips with 50% moisture content were used as a cleaning material. After the exhaust gases have passed through a layer of biomass wood chips carried on the belt, PM was reduced to 10 mg/m3 and 8 tons of water was evaporated from the wood chips, which ultimately represents about 4% reduction in fuel consumption if the chips are then used in the
  • the device of the invention is built into power plant's logistic system and its enclosed space is fitted with a cleaning material inlet port 11, exhaust gas inlet 21 connected to the exhaust from the combustion process, an endless belt conveyor 3 with a layer of the cleaning material spatially separating the exhaust gas inlet 21 from the exhaust gas outlet through the outlet port 22.
  • the endless belt conveyor 3 is equipped with a variable drive (not shown), tensioning means 312 and cleaning means 311 of the belt 31.
  • the exhaust gas flow is driven by a discharge fan at the inlet port 11.
  • the device is connected to the gas exhaust, where the exhaust gases in the volume of 500,000 Nm 3 /h with the content of 3200 mg/m3 PM and the temperature of 185 °C are coming from a coal burning boiler.
  • the cleaning material was coal dust with the moisture content of 26% carried by the conveyor belt 311 of the endless belt conveyor 31. After the exhaust gases have passed through a coal dust layer, the temperature of exhaust gases dropped by 140 degrees and the fuel moisture content was reduced by 20 tons of water per hour. The cleaned exhaust gases were driven by a suction fan (not shown) to the power plant chimney and then released into the atmosphere. In the cleaning process the PM content was reduced to 18 mg/m3.
  • the device was arranged as in Example 1.
  • the device was connected to the gas exhaust, wherein the exhaust gases in the volume of 50,000 Nm 3 /h with the PM content of 3000 mg/m3 and the temperature of 195 °C were brought to the cleaning process from a combustion device.
  • the cleaning material was sludge applied on a biomass backing layer made of wood sawdust. After the exhaust gases have passed through the fuel layer, the temperature of exhaust gases dropped by 145 °C and the cleaning material moisture content was reduced by 1.8 tons of water per hour. Exhaust gases were driven by a suction fan (not shown) to the combustion equipment chimney and then released into the atmosphere. Through the cleaning process the PM content was reduced to 9 mg/m3.
  • Example 4 Example 4
  • the device of the invention was arranged as in Example 1.
  • the device was connected to the gas exhaust, where the exhaust gases in the volume of 50,000 Nm 3 /h, with the PM content of 3500 mg/m3 and the temperature of 180 °C were brought from a combustion device.
  • the cleaning material was crushed rape straw placed on a layer of wood chips with the bottom layer formed by pulverized coal. After the exhaust gases have passed through such treated layered cleaning material, the temperature of exhaust gases dropped to 60 °C and the cleaning material moisture content was reduced by 1.7 tons of water per hour. Cleaned exhaust gases were driven by a suction fan to the combustion equipment chimney and then released into the atmosphere. Through the cleaning process the PM content was reduced to 9 mg/m3.
  • the device of the invention was arranged as in Example 1.
  • the device was connected to the gas exhaust, where the exhaust gases in the volume of 50,000 Nm 3 /h, with the PM content of 4200 mg/m3 and the temperature of 180 °C were brought from a combustion device.
  • the cleaning material was cut and crushed straw placed on a layer of wood chips. Such layered cleaning material was in the final stage of the cleaning process enriched with micronized limestone.
  • the temperature of exhaust gases dropped to 70 °C and the cleaning material moisture content was reduced by 1.5 tons of water per hour.
  • Exhaust gases were driven by a suction fan to the combustion equipment chimney and then released into the atmosphere. Through the cleaning process the PM content was reduced to 14 mg/m3. At the same time, through this process the ash melting temperature of the cleaning material was increased by 160 degrees.
  • the device of the invention is intended primarily for power plants, heating plants but also for industrial companies having their own combustion devices.
  • a good example are sugar refineries, pulp producing plants, paper mills and plants for wood processing and particle board manufacture.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Processing Of Solid Wastes (AREA)
  • Treating Waste Gases (AREA)
  • Paper (AREA)

Abstract

La présente invention concerne un dispositif de nettoyage de gaz d'échappement de processus de combustion qui forme un espace fermé avec un orifice d'entrée de substance de nettoyage (11), une entrée de gaz d'échappement (21) raccordée à l'échappement d'un processus de combustion et un orifice de sortie de gaz d'échappement nettoyé (22), ainsi qu'une bande transporteuse continue de substance de nettoyage (3) comportant une bande transporteuse (31) en matériau perméable à l'air et située dans l'espace entre l'entrée de gaz d'échappement (21) et l'orifice de sortie de gaz d'échappement nettoyé (22), ladite bande transporteuse continue (3) étant de plus équipée d'un entraînement à vitesse variable et ledit espace fermé étant de plus équipé de la sortie de substance de nettoyage usée (12). Le dispositif augmente le rendement global de l'équipement de production d'énergie de 1 % à 8 % en moyenne. Il est destiné principalement aux centrales électriques, aux centrales de chauffage, mais aussi aux entreprises industrielles ayant leurs propres dispositifs de combustion. Les raffineries de sucre, les usines de production de pâte à papier, les usines à papier et les usines de traitement du bois et de production de panneaux de particules constituent de bons exemples d'application.
PCT/SK2012/050003 2011-03-31 2012-03-26 Dispositif de nettoyage de gaz d'échappement de processus de combustion Ceased WO2012134405A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE212012000080U DE212012000080U1 (de) 2011-03-31 2012-03-26 Abgasreinigungsanlage vom Verbrennungsprozess

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SK5018-2011A SK50182011A3 (sk) 2011-03-31 2011-03-31 A device for cleaning gases from combustion process
SKPP5018-2011 2011-03-31

Publications (2)

Publication Number Publication Date
WO2012134405A2 true WO2012134405A2 (fr) 2012-10-04
WO2012134405A3 WO2012134405A3 (fr) 2013-02-21

Family

ID=46147009

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SK2012/050003 Ceased WO2012134405A2 (fr) 2011-03-31 2012-03-26 Dispositif de nettoyage de gaz d'échappement de processus de combustion

Country Status (4)

Country Link
CZ (1) CZ27165U1 (fr)
DE (1) DE212012000080U1 (fr)
SK (1) SK50182011A3 (fr)
WO (1) WO2012134405A2 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT513889A1 (de) * 2013-02-15 2014-08-15 Peter Dipl Ing Fh Sandor-Guggi Filteraufsatz
DE102023111191A1 (de) * 2023-05-02 2024-11-07 Welter's Co., Ltd. Umwälzfilter-Abgasreinigungssystem zum Schutz vor Luftverschmnutzung
FI20236241A1 (en) * 2023-11-06 2025-05-07 Valmet Technologies Oy Duct system, uses of a duct system and method for purifying flue gas

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2639780A (en) * 1950-02-14 1953-05-26 Gordon W Hardy Chaff separator and furnace
US4098200A (en) * 1976-12-09 1978-07-04 Dauvergne Hector A Low pollution solid waste burner
US4167909A (en) * 1976-12-09 1979-09-18 Dauvergne Hector A Solid fuel burner
US4539916A (en) * 1983-08-11 1985-09-10 Paoluccio John A Apparatus for cleaning flue gases and other gases
DE3522820A1 (de) * 1985-06-26 1987-01-02 Duras Herbert Verfahren und einrichtung zur reduzierung der schadstoffemissionen von verbrennungsanlagen
DE3644381A1 (de) * 1986-12-24 1988-07-07 Berlin Consult Gmbh Verfahren und anlage zur minimierung von schadstoff-emissionen aus verbrennungsanlagen
DE4140612C1 (fr) * 1991-12-10 1993-06-17 Fa. Carl Freudenberg, 6940 Weinheim, De
US7708803B2 (en) * 2006-11-03 2010-05-04 Electric Power Research Institute, Inc. Method and apparatus for the enhanced removal of aerosols from a gas stream

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT513889A1 (de) * 2013-02-15 2014-08-15 Peter Dipl Ing Fh Sandor-Guggi Filteraufsatz
DE102023111191A1 (de) * 2023-05-02 2024-11-07 Welter's Co., Ltd. Umwälzfilter-Abgasreinigungssystem zum Schutz vor Luftverschmnutzung
FI20236241A1 (en) * 2023-11-06 2025-05-07 Valmet Technologies Oy Duct system, uses of a duct system and method for purifying flue gas
FI131765B1 (en) * 2023-11-06 2025-11-18 Valmet Technologies Oy Duct system, uses of a duct system and method for purifying flue gas

Also Published As

Publication number Publication date
DE212012000080U1 (de) 2013-11-20
CZ27165U1 (cs) 2014-07-14
WO2012134405A3 (fr) 2013-02-21
SK50182011A3 (sk) 2012-10-02

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