CN105571338B - A kind of system for the tail gas for handling rock wool board assembly line furnace cupola - Google Patents

A kind of system for the tail gas for handling rock wool board assembly line furnace cupola Download PDF

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Publication number
CN105571338B
CN105571338B CN201610078260.XA CN201610078260A CN105571338B CN 105571338 B CN105571338 B CN 105571338B CN 201610078260 A CN201610078260 A CN 201610078260A CN 105571338 B CN105571338 B CN 105571338B
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CN
China
Prior art keywords
air
combustion chamber
heat exchanger
gas
tail gas
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Application number
CN201610078260.XA
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Chinese (zh)
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CN105571338A (en
Inventor
于阔沛
潘文杰
隋成富
宁常飞
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QINGDAO QINGLI ENVIRONMENT PROTECTION EQUIPMENTS CO Ltd
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QINGDAO QINGLI ENVIRONMENT PROTECTION EQUIPMENTS CO Ltd
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Priority to CN201610078260.XA priority Critical patent/CN105571338B/en
Publication of CN105571338A publication Critical patent/CN105571338A/en
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Classifications

    • 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
    • F27D17/004—Systems for reclaiming waste heat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
    • B01D46/023—Pockets filters, i.e. multiple bag filters mounted on a common frame
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
    • F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
    • 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
    • F23L15/00—Heating of air supplied for combustion
    • 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
    • F27D17/008—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases cleaning gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2206/00—Waste heat recuperation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2209/00—Specific waste
    • F23G2209/14—Gaseous waste or fumes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

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  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Air Supply (AREA)

Abstract

The present invention relates to field of environment protection, especially a kind of system for the tail gas for handling rock wool board assembly line furnace cupola.It includes：Curing oven, the first combustion chamber, first-class heat exchanger, secondary heat exchanger, bag filter and multiple-pipe water cooler, first combustion chamber, first-class heat exchanger, secondary heat exchanger, multiple-pipe water cooler and bag filter are sequentially connected in series, the air outlet slit of first-class heat exchanger is connected with the air inlet of furnace cupola, the air outlet slit of secondary heat exchanger and each second combustion chamber of curing oven.It had not only solved the problems, such as the secondary use of heat in Cupola tail gas, but also solved the problems, such as automatic Air Adjusting, ensure that combustor working stability, few without extra increase wind turbine, energy consumption.

Description

A kind of system for the tail gas for handling rock wool board assembly line furnace cupola
Technical field
The present invention relates to field of environment protection, especially a kind of system for the tail gas for handling rock wool board assembly line furnace cupola.
Background technology
In existing rock wool board assembly line, the vent gas treatment mode of furnace cupola is generally soaring furnace exhaust gas and is fired into combustion chamber Burn, the air subsequently into heat exchanger heating into furnace cupola, cools down into multitube cooler, enter back into bag filter afterwards Filter it is out of dust, finally by air-introduced machine, chimney emptying.The problem of such a situation be from heat exchanger come out high-temperature flue gas still Containing amount of heat, into bag filter before need to be cooled to less than 200 DEG C, wasted the energy.
The content of the invention
Present invention seek to address that the above problem, there is provided it is a kind of handle rock wool board assembly line furnace cupola tail gas be System, it had not only solved the problems, such as the secondary use of heat in Cupola tail gas, but also solved the problems, such as automatic Air Adjusting, ensure that Combustor working stability, without extra increase wind turbine, energy consumption is few, and the technical solution that it is used is as follows：
A kind of system for the tail gas for handling rock wool board assembly line furnace cupola, it is characterised in that including：Curing oven, first Combustion chamber, the first-class heat exchanger for that will be heated by the tail gas that the first combustion chamber is discharged to the air for entering furnace cupola, use Changed in pre-warmed two level will be carried out to the air for entering each second combustion chamber of curing oven by the tail gas that first-class heat exchanger is discharged Hot device, for filtering the bag filter of fine dusts in tail gas and for cooling down to entering the tail gas in bag filter Multiple-pipe water cooler, the first combustion chamber, first-class heat exchanger, secondary heat exchanger, multiple-pipe water cooler and the bag filter It is sequentially connected in series, the air outlet slit of the first-class heat exchanger is connected with the air inlet of furnace cupola, the air of the secondary heat exchanger Outlet and each second combustion chamber of curing oven.
On the basis of above-mentioned technical proposal, the second air-introduced machine is connected with each second combustion chamber of the curing oven, it is described First air port of the second air-introduced machine is connected with the bellows of curing oven, and second combustion chamber has the first gas port, the second gas port With the 3rd gas port, the first gas port of second combustion chamber is connected with the bellows of curing oven, and the second of second combustion chamber Gas port is connected with the second air port of the second air-introduced machine, and the 3rd gas port of second combustion chamber and the air of secondary heat exchanger go out Mouth is connected.
On the basis of above-mentioned technical proposal, the gas that second air-introduced machine is extracted in the second combustion chamber inner cavity makes each second It is subnormal ambient in the inner cavity of combustion chamber.
On the basis of above-mentioned technical proposal, the first air-introduced machine and desulfurizing tower are further included, the tail gas discharged by bag filter It is introduced into by the first air-introduced machine in desulfurizing tower.
The invention has the advantages that：Not only solved the problems, such as the secondary use of heat in Cupola tail gas, but also solved The problem of automatic Air Adjusting, it ensure that combustor working stability, it is few without extra increase wind turbine, energy consumption.
Brief description of the drawings
Fig. 1：The conventional use of curing oven；
Fig. 2：Structure diagram after curing oven coordinates with secondary heat exchanger under conventional thinking；
Fig. 3：The structure diagram (eliminating curing oven) of the present invention；
Fig. 4：The curing oven of the present invention and the structure diagram after secondary heat exchanger cooperation；
Embodiment
The invention will be further described with example below in conjunction with the accompanying drawings：
As shown in Figure 3 and Figure 4, a kind of system for the tail gas for handling rock wool board assembly line furnace cupola, it is characterised in that bag Include：Curing oven 7, the first combustion chamber 2, for will by the tail gas that the first combustion chamber 2 is discharged to enter furnace cupola 1 air add The first-class heat exchanger 3 of heat, for by by the tail gas that first-class heat exchanger 3 is discharged to entering each second combustion chamber 7-1 of curing oven 7 Air carries out pre-warmed secondary heat exchanger 4, the bag filter 6 for filtering fine dusts in tail gas and for into cloth The multiple-pipe water cooler 5 that tail gas in bag dust collector 6 cools down, first combustion chamber 2, first-class heat exchanger 3, secondary heat exchange Device 4, multiple-pipe water cooler 5 and bag filter 6 are sequentially connected in series, the air outlet slit of the first-class heat exchanger 3 and furnace cupola 1 into Gas port is connected, and the air outlet slit of the secondary heat exchanger 4 is connected with each second combustion chamber 7-1 of curing oven 7.
Preferably, the second air-introduced machine 8, second air-introduced machine are connected with each second combustion chamber 7-1 of the curing oven 7 8 the first air port 8a is connected with the bellows of curing oven 7, and the second combustion chamber 7-1 has the first gas port 7a, the second gas port 7b It is connected with the 3rd gas port 7c, the first gas port 7a of the second combustion chamber 7-1 with the bellows of curing oven 7, second burning The second gas port 7b of room 7-1 is connected with the second air port 8b of the second air-introduced machine 8, the 3rd gas port of the second combustion chamber 7-1 7c is connected with the air outlet slit of secondary heat exchanger 4, parallel with one another between each second combustion chamber 7-1, in the sky of secondary heat exchanger 4 Gas entrance is not provided with air blower.
Preferably, the gas that second air-introduced machine 8 is extracted in the second combustion chamber 7-1 inner cavities makes each second combustion chamber 7-1 It is subnormal ambient in inner cavity, the first air-flow enters the by the bellows of curing oven 7 by the first gas port 7a of the second combustion chamber 7-1 In two combustion chamber 7-1, due to being subnormal ambient in the second combustion chamber 7-1 inner cavities, the second air-flow (air) is passed through successively by the external world The air intlet of secondary heat exchanger 4, the air outlet slit of secondary heat exchanger 4, the 3rd gas port 7c of the second combustion chamber 7-1 enter second In the 7-1 of combustion chamber, by the second gas port 7b of the second combustion chamber 7-1 successively by drawing after the first air-flow and the second air-flow mixed combustion The second air port 8b, the first air port 8a of wind turbine 8 enter in the bellows of curing oven 7.Due to being negative pressure in the second combustion chamber 7-1, because Air blower need not be increased at the air intlet of this secondary heat exchanger, outside air can be automatically flowed into the second combustion chamber 7-1, can The combustion case of adaptive each second combustion chamber, air distribution, combustor work are automatically performed according to the combustion case of each second combustion chamber Work is stablized, and gas consumption is greatly reduced, and power consumption also reduces.
Herein it is to be noted that：Conventional thinking is to make in the second combustion chamber inner cavity to be positive pressure ring in the art Border, because curing oven is conventional using secondary heat exchanger is not connected to, as shown in Figure 1, air blower 20 extracts the wind of curing oven 7 Gas in case blasts to be made to be positive pressure environment in the second combustion chamber 7-1 in the second combustion chamber 7-1, the gas in the second combustion chamber 7-1 A body part is entered in the bellows of curing oven 7 by the first gas port 7a of the second combustion chamber 7-1, and another part is by the second combustion chamber 7- 1 the 3rd gas port 7c discharges are extraneous, because of the problem of air distribution is not present, therefore combustor working stability.
And if curing oven is connected into thinking still routinely after secondary heat exchanger, make to be positive pressure in the second combustion chamber inner cavity Environment, as shown in Fig. 2, then needing to increase by a Fans 30 at the air intlet of secondary heat exchanger 4, the air of room temperature is blasted With entering back into each second combustion chamber 7-1 after high-temp waste gas heat exchange in secondary heat exchanger, air blower 20 then extracts the wind of curing oven 7 Gas in case is blasted in the second combustion chamber 7-1, and air in the second combustion chamber 7-1 is blasted with being roused by air blower 20 by wind turbine 30 Enter the bellows for entering curing oven 7 after the gas mixing in the second combustion chamber 7-1 is burnt by the first gas port 7a of the second combustion chamber 7-1 In.But the result of this scheme actual motion is unsatisfactory, first, power will be increased by adding wind turbine 30, and second, because wind turbine 30 blast air in the second combustion chamber 7-1, therefore the wind pressure of increased wind turbine needs the wind of the air blower 20 more than curing oven Pressure could use, and the wind pressure of the air blower 20 of curing oven is larger, and the wind pressure of wind turbine 30 then needs bigger, and the 3rd, air blower Air can be blasted this process in the second combustion chamber 7-1 to wind turbine 30 and form one by 20 gases blasted in the second combustion chamber 7-1 Hinder that this can cause the distribution wind unfair of the second combustion chamber even (because airflow direction is inconsistent) calmly, often cause combustor to extinguish, Do not work etc. as a result, effect is unsatisfactory.
And the technical solution of the application had not only solved the problems, such as the secondary use of heat in Cupola tail gas, but also solve The problem of automatic Air Adjusting, guarantee combustor working stability, generate synergistic effect.Without additionally increasing wind turbine, energy consumption is few.
Further, the first air-introduced machine 9 and desulfurizing tower 10 are further included, by the tail gas that bag filter 6 is discharged by the first air inducing Machine 9 is introduced into desulfurizing tower 10.
Air by the heating of secondary heat exchanger 4 into curing oven, can greatly save the consumption of natural gas, pass through The actual measuring and calculating of our multiple users, average asbestos product per ton can save at least 17.5m3Natural gas, annual every production Line at least produces 20000 tons of asbestos products, can save 350000m3Natural gas, industrial natural gas price are 4 yuan/m3, therefore one Year, one production line only natural gas one can save 1,400,000 yuan, and effects of energy saving and emission reduction is clearly.
The present invention is described by way of example above, but the invention is not restricted to above-mentioned specific embodiment, it is all to be based on Any changes or modifications that the present invention is done belong to the scope of protection of present invention.

Claims (2)

  1. A kind of 1. system for the tail gas for handling rock wool board assembly line furnace cupola, it is characterised in that including：Curing oven, the first combustion Burn room, for by by the tail gas that the first combustion chamber discharge to entrance furnace cupola air heated first-class heat exchanger, be used for Pre-warmed secondary heat exchange will be carried out to the air for entering each second combustion chamber of curing oven by the tail gas that first-class heat exchanger is discharged Device, for filtering the bag filter of fine dusts in tail gas and for cooling down to entering the tail gas in bag filter Multiple-pipe water cooler, the first combustion chamber, first-class heat exchanger, secondary heat exchanger, multiple-pipe water cooler and the bag filter according to Secondary series connection, the air outlet slit of the first-class heat exchanger are connected with the air inlet of furnace cupola, and the air of the secondary heat exchanger goes out Mouthful and curing oven each second combustion chamber, be connected with the second air-introduced machine, institute on each second combustion chamber of the curing oven The first air port for stating the second air-introduced machine is connected with the bellows of curing oven, and second combustion chamber has the first gas port, the second gas Mouthful and the 3rd gas port, the first gas port of second combustion chamber is connected with the bellows of curing oven, the of second combustion chamber Two gas ports are connected with the second air port of the second air-introduced machine, the 3rd gas port of second combustion chamber and the air of secondary heat exchanger Outlet is connected；The gas that second air-introduced machine is extracted in the second combustion chamber inner cavity makes in the inner cavity of each second combustion chamber to be negative Pressure ring border, air blower is not provided with the air intlet of secondary heat exchanger (4).
  2. A kind of 2. system of tail gas for handling rock wool board assembly line furnace cupola according to claim 1, it is characterised in that： The first air-introduced machine and desulfurizing tower are further included, the tail gas discharged by bag filter is introduced into desulfurizing tower by the first air-introduced machine.
CN201610078260.XA 2016-01-29 2016-01-29 A kind of system for the tail gas for handling rock wool board assembly line furnace cupola Active CN105571338B (en)

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Application Number Priority Date Filing Date Title
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CN105571338B true CN105571338B (en) 2018-05-01

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Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106679402A (en) * 2017-01-16 2017-05-17 苏州市润达机械制造有限公司 Energy-saving environment-friendly efficient hot blast cupola
CN107421340A (en) * 2017-09-08 2017-12-01 晋城市科裕达铸造有限公司 A kind of residual heat collection utilizes device
CN108398031B (en) * 2018-01-30 2024-02-09 佛山高砂工业窑炉有限公司 Parallel tail gas combustion treatment device for lithium battery material firing furnace
CN110252048A (en) * 2019-06-28 2019-09-20 徐娜娜 A kind of blast furnace tail gas processing unit
CN112915731A (en) * 2021-01-26 2021-06-08 天津理工大学 Calcining furnace tail gas purification treatment device and process

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4365790A (en) * 1981-05-19 1982-12-28 Mag Maschinen Und Apparatebau Gesellschaft Mbh Plant for producing enameled wire using an inline process
CN101498453A (en) * 2009-03-03 2009-08-05 北京星和众工设备技术股份有限公司 Security heating method for color-coating line paint curing oven
CN102607285A (en) * 2012-03-06 2012-07-25 景泰县诺克保温建材有限公司 Device for supplying heat sources for rock wool curing by waste gas of cupola
CN103601363A (en) * 2013-11-11 2014-02-26 山东建筑大学 Method for gradient utilization of heat of fuel gas cupola producing rock wool
CN203719372U (en) * 2014-03-03 2014-07-16 景泰县诺克保温建材有限责任公司 Device using waste gas of cupola furnace to supply heat for curing furnace

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4365790A (en) * 1981-05-19 1982-12-28 Mag Maschinen Und Apparatebau Gesellschaft Mbh Plant for producing enameled wire using an inline process
CN101498453A (en) * 2009-03-03 2009-08-05 北京星和众工设备技术股份有限公司 Security heating method for color-coating line paint curing oven
CN102607285A (en) * 2012-03-06 2012-07-25 景泰县诺克保温建材有限公司 Device for supplying heat sources for rock wool curing by waste gas of cupola
CN103601363A (en) * 2013-11-11 2014-02-26 山东建筑大学 Method for gradient utilization of heat of fuel gas cupola producing rock wool
CN203719372U (en) * 2014-03-03 2014-07-16 景泰县诺克保温建材有限责任公司 Device using waste gas of cupola furnace to supply heat for curing furnace

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