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US20110039220A1 - Horizontal type high-temperature hot-blast stove - Google Patents

Horizontal type high-temperature hot-blast stove Download PDF

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Publication number
US20110039220A1
US20110039220A1 US12/988,516 US98851608A US2011039220A1 US 20110039220 A1 US20110039220 A1 US 20110039220A1 US 98851608 A US98851608 A US 98851608A US 2011039220 A1 US2011039220 A1 US 2011039220A1
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US
United States
Prior art keywords
furnace body
air opening
hot
blast stove
ball bed
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.)
Abandoned
Application number
US12/988,516
Inventor
Jiule Zhou
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
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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.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of US20110039220A1 publication Critical patent/US20110039220A1/en
Abandoned legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B9/00—Stoves for heating the blast in blast furnaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
    • F27D17/20—Arrangements for treatment or cleaning of waste gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D7/00—Forming, maintaining or circulating atmospheres in heating chambers
    • F27D7/06—Forming or maintaining special atmospheres or vacuum within heating chambers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D17/00—Regenerative heat-exchange apparatus in which a stationary intermediate heat-transfer medium or body is contacted successively by each heat-exchange medium, e.g. using granular particles
    • F28D17/02—Regenerative heat-exchange apparatus in which a stationary intermediate heat-transfer medium or body is contacted successively by each heat-exchange medium, e.g. using granular particles using rigid bodies, e.g. of porous material

Definitions

  • This invention relates to a kind of horizontal type high-temperature hot-blast stove, a heat exchanger with super high air temperature achieved through high frequency heat exchange among coal gas, steam, air and other gas.
  • Traditional hot-blast stove is usually installed with gas heat exchangers such as duplicate stove or ball stove. These stoves have lower efficiency, lower hot air (highest to 1250° C.), large size and high one-time investment. They are usually installed with low heat blast furnace consuming coal gas, and are hard to achieve high air temperature.
  • This horizontal type high-temperature hot-blast stove is invented to further save energy, reduce the emission of carbon dioxide and other greenhouse gases. Especially, it is invented to meet the requirement of blast furnace and gas furnace technology which need high efficiency heat exchange among steam, coal gas, air and other gas.
  • the solution for this invention includes:
  • a horizontal type high-temperature hot-blast stove comprises of a furnace body, a ball bed, a cold air opening and a hot air opening.
  • Combustion chambers are respectively set on the left side and right side in the furnace body.
  • several burner guns are set on the bottom of the furnace body which locates on the lower part of the combustion chambers.
  • the cold air opening is set on the left side of the furnace body, and the hot air opening is set on the right side of the furnace body, and the cold air opening and the hot air opening are respectively communicated with the combustion chambers which are set on the left side and right side in the furnace body.
  • the ball bed is set in the middle part of the furnace body.
  • the two sides of the ball bed is configured with checker bricks, while the middle of the ball bed is filled with alumina balls with a diameter of 10-60 mm, and a manhole is set on the top of the furnace body.
  • the hot-blast stove in this invention not only can preheat air, but also can preheat coal gas or water vapor. It also can be used to preheat and reform other combustible gas.
  • the hot-blast stove in this invention can provide higher preheating temperature (1250-1450° C.).
  • the hot-blast stove in this invention is installed with smaller alumina balls with a diameter of 10-20 mm, so their volume and weight is 60-66% of those installed in traditional hot-blast stove, but the same heat exchange area is achieved. This reduced the size of furnace body, so the manufacturing cost of hot-blast stove is reduced.
  • This invention provides simple structure, low investment and high heat transfer efficiency. With this invention, it is easy to achieve high heat temperature using coal gas of low calorific value. The heat transfer efficiency can reach to 80%.
  • FIG. 1 is the structure diagram of one embodiment of this invention
  • a horizontal type high-temperature hot-blast stove it includes a furnace body ( 6 ), a ball bed ( 4 ), a cold air opening ( 1 ) and a hot air opening ( 9 ).
  • Combustion chambers ( 2 ) are respectively set on the left side and right side in the square furnace body ( 6 ).
  • several square burner guns ( 3 ) are set on the bottom of the furnace body ( 6 ) which locates on the lower part of the combustion chambers ( 2 ).
  • the cold air opening ( 1 ) is set on the left side of the furnace body ( 6 ), and the hot air opening ( 9 ) is set on the right side of the furnace body ( 6 ).
  • the ball bed ( 4 ) consists of checker brick partition ( 8 ) and alumina balls ( 7 ) with a diameter of 10-20 mm.
  • a manhole ( 5 ) is set on the top of the furnace body.
  • the checker brick partition ( 8 ) and alumina balls ( 7 ) in the ball bed ( 4 ) are preheated to 1500-1550° C.
  • the cold air is supplied to the ball bed ( 4 ) from the cold air opening. the cold air is preheated to 1250-1450° C., and then is transferred to reactor through hot air opening ( 9 ).

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Dispersion Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Thermal Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Air Supply (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)

Abstract

A kind of horizontal type high-temperature hot-blast stove, it includes a furnace body (6), a ball bed (4), a cold air opening (1) and a hot air opening (9). Combustion chambers (2) are respectively set on the left side and right side in the furnace body (6). And several burner guns (3) are set on the bottom of the furnace body (6) which locates on the lower part of the combustion chambers (2). The cold air opening (1) is set on the left side of the furnace body (6), and the hot air opening (9) is set on the right side of the furnace body (6), and the cold air opening (1) and the hot air opening (9) are respectively communicated with the combustion chambers (2) which are set on the left side and right side in the furnace body (6). The ball bed (4) is set in the middle part of the furnace body (6). The configuration of the two sides of the ball bed (4) is a checker brick configuration, and a manhole (5) is set on the top of the furnace body (6).

Description

    BACKGROUND OF THE INVENTION
  • This invention relates to a kind of horizontal type high-temperature hot-blast stove, a heat exchanger with super high air temperature achieved through high frequency heat exchange among coal gas, steam, air and other gas.
  • Traditional hot-blast stove is usually installed with gas heat exchangers such as duplicate stove or ball stove. These stoves have lower efficiency, lower hot air (highest to 1250° C.), large size and high one-time investment. They are usually installed with low heat blast furnace consuming coal gas, and are hard to achieve high air temperature.
    • BRIEF SUMMARY OF THE INVENTION
  • This horizontal type high-temperature hot-blast stove is invented to further save energy, reduce the emission of carbon dioxide and other greenhouse gases. Especially, it is invented to meet the requirement of blast furnace and gas furnace technology which need high efficiency heat exchange among steam, coal gas, air and other gas.
  • The solution for this invention includes:
  • A horizontal type high-temperature hot-blast stove comprises of a furnace body, a ball bed, a cold air opening and a hot air opening. Combustion chambers are respectively set on the left side and right side in the furnace body. And several burner guns are set on the bottom of the furnace body which locates on the lower part of the combustion chambers. The cold air opening is set on the left side of the furnace body, and the hot air opening is set on the right side of the furnace body, and the cold air opening and the hot air opening are respectively communicated with the combustion chambers which are set on the left side and right side in the furnace body. The ball bed is set in the middle part of the furnace body. The two sides of the ball bed is configured with checker bricks, while the middle of the ball bed is filled with alumina balls with a diameter of 10-60 mm, and a manhole is set on the top of the furnace body.
  • The operation principle of the horizontal type high-temperature hot-blast stove in this invention:
  • Supplying coal gas and air to burners, heating the ball bed to a contain temperature, breaking off heating and supplying cold gas from cold air opening. The cold gas will be heated by the ball bed and flow out of the hot-blast stove through hot air opening. When the temperature of the ball bed is not higher than the temperature of heat exchange, stop supplying cold air and heat the ball bed again.
  • The advantages of this invention
  • 1. Square burner guns are used for heating, which keeps the emission temperature of dust under 150° C., reduced fuel consumption and improved energy utilization.
  • 2. The hot-blast stove in this invention not only can preheat air, but also can preheat coal gas or water vapor. It also can be used to preheat and reform other combustible gas.
  • 3. The hot-blast stove in this invention can provide higher preheating temperature (1250-1450° C.).
  • 4. The hot-blast stove in this invention is installed with smaller alumina balls with a diameter of 10-20 mm, so their volume and weight is 60-66% of those installed in traditional hot-blast stove, but the same heat exchange area is achieved. This reduced the size of furnace body, so the manufacturing cost of hot-blast stove is reduced.
  • 5. This invention provides simple structure, low investment and high heat transfer efficiency. With this invention, it is easy to achieve high heat temperature using coal gas of low calorific value. The heat transfer efficiency can reach to 80%.
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 is the structure diagram of one embodiment of this invention
    •  DETAILED DESCRIPTION OF THE INVENTION Embodiment 1
  • A horizontal type high-temperature hot-blast stove, it includes a furnace body (6), a ball bed (4), a cold air opening (1) and a hot air opening (9). Combustion chambers (2) are respectively set on the left side and right side in the square furnace body (6). And several square burner guns (3) are set on the bottom of the furnace body (6) which locates on the lower part of the combustion chambers (2). The cold air opening (1) is set on the left side of the furnace body (6), and the hot air opening (9) is set on the right side of the furnace body (6). The ball bed (4) consists of checker brick partition (8) and alumina balls (7) with a diameter of 10-20 mm. A manhole (5) is set on the top of the furnace body. The checker brick partition (8) and alumina balls (7) in the ball bed (4) are preheated to 1500-1550° C. The cold air is supplied to the ball bed (4) from the cold air opening. the cold air is preheated to 1250-1450° C., and then is transferred to reactor through hot air opening (9).

Claims (1)

1. A kind of horizontal type high-temperature hot-blast stove, it includes a furnace body, a ball bed, a cold air opening and a hot air opening; combustion chambers are respectively set on the left side and right side in the furnace body; and several burner guns are set on the bottom of the furnace body which locates on the lower part of the combustion chambers; the cold air opening is set on the left side of the furnace body, and the hot air opening is set on the right side of the furnace body, and the cold air opening and the hot air opening are respectively communicated with the combustion chambers which are set on the left side and right side in the furnace body; the ball bed is set in the middle part of the furnace body; the two sides of the ball bed is configured with checker bricks, while the middle of the ball bed is filled with alumina ball s with a diameter of 10-60 mm, and a manhole is set on the top of the furnace body.
US12/988,516 2008-04-24 2008-10-16 Horizontal type high-temperature hot-blast stove Abandoned US20110039220A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CNA2008100111742A CN101566389A (en) 2008-04-24 2008-04-24 Horizontal-type high temperature hot-blast furnace
CN200810011174.2 2008-04-24
PCT/CN2008/072719 WO2009129679A1 (en) 2008-04-24 2008-10-16 Horizontal type high-temperature hot-blast stove

Publications (1)

Publication Number Publication Date
US20110039220A1 true US20110039220A1 (en) 2011-02-17

Family

ID=41216403

Family Applications (1)

Application Number Title Priority Date Filing Date
US12/988,516 Abandoned US20110039220A1 (en) 2008-04-24 2008-10-16 Horizontal type high-temperature hot-blast stove

Country Status (5)

Country Link
US (1) US20110039220A1 (en)
CN (1) CN101566389A (en)
AU (1) AU2008355449A1 (en)
DE (1) DE212008000117U1 (en)
WO (1) WO2009129679A1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110236924A1 (en) * 2008-12-19 2011-09-29 Halverson Kurt J System and method for processing samples
WO2013003309A1 (en) 2011-06-30 2013-01-03 3M Innovative Properties Company Systems and methods for detecting an analyte of interest in a sample using filters and microstructured surfaces
US8535945B2 (en) 2008-12-19 2013-09-17 3M Innovative Properties Company System and method for concentrating samples
US9488563B2 (en) 2011-06-30 2016-11-08 3M Innovative Properties Company Systems and methods for detecting an analyte of interest in a sample using microstructured surfaces
US10639628B2 (en) 2013-12-20 2020-05-05 3M Innovative Properties Company Systems and methods for sample concentration and detection
US10639629B2 (en) 2013-12-20 2020-05-05 3M Innovative Properties Company Systems and methods for sample concentration and detection using a separation liquid
CN111718736A (en) * 2020-07-01 2020-09-29 苏州可之亚能源科技有限公司 A horizontal biomass continuous carbonization furnace

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105485901B (en) * 2016-01-05 2018-08-17 合肥工业大学 A kind of grain-drying hot-air furnace

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100798065B1 (en) * 2001-11-16 2008-01-28 주식회사 포스코 Automatic collection device of infiltration of coolant in the blast furnace
CN1624159B (en) * 2003-12-05 2010-11-03 山东省冶金设计院 Hot-blast stove heating from dual-end of air pipe of heat storage device set
CN1296495C (en) * 2004-05-10 2007-01-24 四川大学 High wind temperature obtaining method using pure blast furnace gas combustion
CN100339337C (en) * 2006-02-10 2007-09-26 刘宗合 Preparation method of high-strength high-alumina refractory ball for smelt
CN2863795Y (en) * 2006-02-22 2007-01-31 沈阳东方钢铁有限公司 Heat accumulation coke oven

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110236924A1 (en) * 2008-12-19 2011-09-29 Halverson Kurt J System and method for processing samples
US8535945B2 (en) 2008-12-19 2013-09-17 3M Innovative Properties Company System and method for concentrating samples
US8647508B2 (en) 2008-12-19 2014-02-11 3M Innovative Properties Company System and method for processing samples
US9388448B2 (en) 2008-12-19 2016-07-12 3M Innovative Properties Company System and method for processing samples
WO2013003309A1 (en) 2011-06-30 2013-01-03 3M Innovative Properties Company Systems and methods for detecting an analyte of interest in a sample using filters and microstructured surfaces
US9470612B2 (en) 2011-06-30 2016-10-18 3M Innovative Properties Company Systems and methods for detecting an analyte of interest in a sample using filters and microstructured surfaces
US9488563B2 (en) 2011-06-30 2016-11-08 3M Innovative Properties Company Systems and methods for detecting an analyte of interest in a sample using microstructured surfaces
US9909969B2 (en) 2011-06-30 2018-03-06 3M Innovative Properties Company Systems and methods for detecting an analyte of interest in a sample using microstructured surfaces
US10639628B2 (en) 2013-12-20 2020-05-05 3M Innovative Properties Company Systems and methods for sample concentration and detection
US10639629B2 (en) 2013-12-20 2020-05-05 3M Innovative Properties Company Systems and methods for sample concentration and detection using a separation liquid
CN111718736A (en) * 2020-07-01 2020-09-29 苏州可之亚能源科技有限公司 A horizontal biomass continuous carbonization furnace

Also Published As

Publication number Publication date
WO2009129679A1 (en) 2009-10-29
DE212008000117U1 (en) 2011-01-20
CN101566389A (en) 2009-10-28
AU2008355449A1 (en) 2009-10-29

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