EA200900334A1 - SYSTEM OF REMOVAL AND AIR / WATER COOLING OF BIG AMERICA DENSE ASH - Google Patents

SYSTEM OF REMOVAL AND AIR / WATER COOLING OF BIG AMERICA DENSE ASH

Info

Publication number
EA200900334A1
EA200900334A1 EA200900334A EA200900334A EA200900334A1 EA 200900334 A1 EA200900334 A1 EA 200900334A1 EA 200900334 A EA200900334 A EA 200900334A EA 200900334 A EA200900334 A EA 200900334A EA 200900334 A1 EA200900334 A1 EA 200900334A1
Authority
EA
Eurasian Patent Office
Prior art keywords
ash
air
cooling
flow
water
Prior art date
Application number
EA200900334A
Other languages
Russian (ru)
Other versions
EA015721B1 (en
Inventor
Марио Магальди
Original Assignee
Магальди Пауэр С.П.А.
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.)
Filing date
Publication date
Application filed by Магальди Пауэр С.П.А. filed Critical Магальди Пауэр С.П.А.
Publication of EA200900334A1 publication Critical patent/EA200900334A1/en
Publication of EA015721B1 publication Critical patent/EA015721B1/en

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 
    • F23J1/00—Removing ash, clinker, or slag from combustion chambers
    • F23J1/02—Apparatus for removing ash, clinker, or slag from ash-pits, e.g. by employing trucks or conveyors, by employing suction devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2700/00—Ash removal, handling and treatment means; Ash and slag handling in pulverulent fuel furnaces; Ash removal means for incinerators
    • F23J2700/001—Ash removal, handling and treatment means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2900/00—Special arrangements for conducting or purifying combustion fumes; Treatment of fumes or ashes
    • F23J2900/01002—Cooling of ashes from the combustion chamber by indirect heat exchangers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2900/00—Special arrangements for conducting or purifying combustion fumes; Treatment of fumes or ashes
    • F23J2900/01003—Ash crushing means associated with ash removal means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2900/00—Special arrangements for conducting or purifying combustion fumes; Treatment of fumes or ashes
    • F23J2900/01005—Mixing water to ash
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2900/00—Special arrangements for conducting or purifying combustion fumes; Treatment of fumes or ashes
    • F23J2900/01006—Airlock sealing associated with ash removal means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L2900/00—Special arrangements for supplying or treating air or oxidant for combustion; Injecting inert gas, water or steam into the combustion chamber
    • F23L2900/15041—Preheating combustion air by recuperating heat from ashes

Abstract

Настоящее изобретение относится к системе удаления и воздушному/водяному охлаждению, и восстановлению энергии из больших потоков плотной золы, получаемых в твердотопливных бойлерах, которая позволяет уменьшить конечную температуру удаляемой золы, без увеличения потока воздуха, подаваемого в горловину бойлера, количество которого обычно фиксировано конструкторами бойлера на значении, приблизительно 1,5 %, от общего воздуха, требуемого для сгорания. Когда поток воздуха, требуемый в процессе охлаждения, превышает максимальный разрешенный поток подачи в бойлер, система позволяет подавать избыточный воздух и, возможно, пар в дымоход, в наиболее соответствующую точку, благодаря разделению среды охлаждения, обеспечиваемой самой золой. Разделение сред системы охлаждения осуществляется автоматически на основе сигнала температуры золы на выходе системы. Если количество охлаждающего воздуха не достаточно для охлаждения золы, эффективность охлаждения может быть повышена путем добавления распыляемой воды. Поток добавляемой воды обычно дозируют на основе потока золы и температуры для гарантирования полного испарения впрыскиваемой воды для получения на выходе, если необходимо, сухой золы, пригодной для измельчения и пневматической транспортировки с возможностью смешения с более легкой золой. Вода обладает значительным преимуществом по сравнению с воздухом и обеспечивает эффективное охлаждение самой золы при значительно меньшем весовом количестве (в соотношении, приблизительно 1:100 при рассматриваемых здесь рабочих условиях) и, таким образом, обеспечивает возможность значительного уменьшения потока воздуха, подаваемогоThe present invention relates to a system for removing and air / water cooling, and energy recovery from large flows of dense ash produced in solid fuel boilers, which allows you to reduce the final temperature of the removed ash, without increasing the flow of air supplied to the boiler neck, the amount of which is usually fixed by the boiler designers. at a value of approximately 1.5% of the total air required for combustion. When the air flow required during the cooling process exceeds the maximum allowed boiler feed flow, the system allows excess air and possibly steam to be fed into the chimney at the most appropriate point by separating the cooling medium provided by the ash itself. The separation of the media of the cooling system is carried out automatically based on the signal of the ash temperature at the outlet of the system. If the amount of cooling air is not sufficient to cool the ash, the cooling efficiency can be increased by adding spray water. The flow of added water is usually metered on the basis of ash flow and temperature to ensure complete evaporation of the injected water to yield, if necessary, dry ash suitable for grinding and pneumatic transport with the possibility of mixing with lighter ash. Water has a significant advantage over air and provides efficient cooling of the ash itself at a much lower weight ratio (in a ratio of approximately 1: 100 under the operating conditions considered here) and thus allows a significant reduction in the air flow supplied

EA200900334A 2006-08-22 2006-08-22 Extraction and air/water cooling system for large quantities of heavy ashes EA015721B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IT2006/000625 WO2008023393A1 (en) 2006-08-22 2006-08-22 Extraction and air/water cooling system for large quantities of heavy ashes

Publications (2)

Publication Number Publication Date
EA200900334A1 true EA200900334A1 (en) 2009-06-30
EA015721B1 EA015721B1 (en) 2011-10-31

Family

ID=37907420

Family Applications (1)

Application Number Title Priority Date Filing Date
EA200900334A EA015721B1 (en) 2006-08-22 2006-08-22 Extraction and air/water cooling system for large quantities of heavy ashes

Country Status (10)

Country Link
US (1) US20100294457A1 (en)
EP (1) EP2057414A1 (en)
JP (1) JP2010501821A (en)
CN (1) CN101506580A (en)
AU (1) AU2006347454A1 (en)
BR (1) BRPI0621950A2 (en)
CA (1) CA2661591A1 (en)
EA (1) EA015721B1 (en)
MX (1) MX2009001889A (en)
WO (1) WO2008023393A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107741021A (en) * 2017-10-31 2018-02-27 史震伟 A kind of air-cooled slag drying machine clinker sensible heat reclaiming system

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DE102008044709A1 (en) * 2008-08-28 2010-03-04 Clyde Bergemann Drycon Gmbh Method and device for conveying combustion residues
DE102008052085B4 (en) 2008-10-17 2020-06-18 Clyde Bergemann Dryc0N Gmbh System with a conveyor for combustion boilers
IT1392240B1 (en) * 2008-12-12 2012-02-22 Magaldi Ind Srl EXTRACTION AND COOLING SYSTEM FOR LARGE RANGE OF HEAVY ASHES WITH EFFICIENCY INCREASE.
CN101660760B (en) * 2009-05-20 2013-04-03 北京国电富通科技发展有限责任公司 Dry-type slag-conveying device
IT1405071B1 (en) * 2011-01-21 2013-12-16 Magaldi Power Spa PLANT AND METHOD OF EXTRACTION AND COOLING OF ASH WITH INCREASE OF THE TOTAL EFFICIENCY OF THE BOILER.
US20120226089A1 (en) * 2011-03-03 2012-09-06 Covanta Energy Corporation Dry ash collector
DE102011101390A1 (en) * 2011-05-13 2012-11-15 Clyde Bergemann Drycon Gmbh Method and device for operating a conveyor for a consumable product
US11135547B1 (en) * 2012-11-09 2021-10-05 Arkansas State University—Jonesboro Air cooled condensing heat exchanger system with acid condensate neutralizer
CN105783006A (en) * 2014-12-26 2016-07-20 青岛松灵电力环保设备有限公司 Pulverized coal boiler ash slag cooling-conveying method and system
CN108225477A (en) * 2018-01-12 2018-06-29 邯郸市邯钢集团信达科技有限公司 A kind of method for measuring Gas Cleaning With Bag House cylinder ash position

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107741021A (en) * 2017-10-31 2018-02-27 史震伟 A kind of air-cooled slag drying machine clinker sensible heat reclaiming system
CN107741021B (en) * 2017-10-31 2019-07-23 史震伟 A kind of air-cooled slag drying machine clinker sensible heat reclaiming system

Also Published As

Publication number Publication date
AU2006347454A1 (en) 2008-02-28
CN101506580A (en) 2009-08-12
EA015721B1 (en) 2011-10-31
BRPI0621950A2 (en) 2011-10-18
US20100294457A1 (en) 2010-11-25
JP2010501821A (en) 2010-01-21
EP2057414A1 (en) 2009-05-13
WO2008023393A1 (en) 2008-02-28
CA2661591A1 (en) 2008-02-28
MX2009001889A (en) 2009-06-08

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Legal Events

Date Code Title Description
MM4A Lapse of a eurasian patent due to non-payment of renewal fees within the time limit in the following designated state(s)

Designated state(s): AM AZ BY KZ KG MD TJ TM RU