CN105536374A - Cupola tail gas treatment system - Google Patents

Cupola tail gas treatment system Download PDF

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Publication number
CN105536374A
CN105536374A CN201610078259.7A CN201610078259A CN105536374A CN 105536374 A CN105536374 A CN 105536374A CN 201610078259 A CN201610078259 A CN 201610078259A CN 105536374 A CN105536374 A CN 105536374A
Authority
CN
China
Prior art keywords
tail gas
heat exchanger
cupola
combustion chamber
water cooler
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.)
Pending
Application number
CN201610078259.7A
Other languages
Chinese (zh)
Inventor
于阔沛
潘文杰
隋成富
宁常飞
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.)
QINGDAO QINGLI ENVIRONMENT PROTECTION EQUIPMENTS CO Ltd
Original Assignee
QINGDAO QINGLI ENVIRONMENT PROTECTION EQUIPMENTS CO Ltd
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 QINGDAO QINGLI ENVIRONMENT PROTECTION EQUIPMENTS CO Ltd filed Critical QINGDAO QINGLI ENVIRONMENT PROTECTION EQUIPMENTS CO Ltd
Priority to CN201610078259.7A priority Critical patent/CN105536374A/en
Publication of CN105536374A publication Critical patent/CN105536374A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D51/00Auxiliary pretreatment of gases or vapours to be cleaned
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/02Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
    • B01D46/023Pockets filters, i.e. multiple bag filters mounted on a common frame
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G7/00Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
    • F23G7/06Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23LSUPPLYING 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
    • F23L15/00Heating of air supplied for combustion
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27DDETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D17/00Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
    • F27D17/004Systems for reclaiming waste heat
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27DDETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D17/00Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
    • F27D17/008Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases cleaning gases
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2258/00Sources of waste gases
    • B01D2258/02Other waste gases
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2258/00Sources of waste gases
    • B01D2258/06Polluted air
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27DDETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D17/00Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
    • F27D17/004Systems for reclaiming waste heat
    • F27D2017/005Systems for reclaiming waste heat including pyrolising the waste gases
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00Combustion technologies with mitigation potential
    • Y02E20/34Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/10Reduction of greenhouse gas [GHG] emissions
    • Y02P10/143Reduction of greenhouse gas [GHG] emissions of methane [CH4]
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/25Process efficiency

Abstract

The invention relates to the field of environmental protection and particularly relates to a cupola tail gas treatment system. The cupola tail gas treatment system comprises a multi-pipe water cooler, a bag-type dust collector, a first combustion chamber and a heat exchanger which are sequentially connected in series, wherein the multi-pipe water cooler is used for reducing the temperature of cupola tail gas; the bag-type dust collector is used for filtering small dust in tail gas; the heat exchanger is used for heating the air entering the cupola by using the tail gas led out of the first combustion chamber; and the tail gas led out of the cupola sequentially goes through the multi-pipe water cooler, the bag-type dust collector, the first combustion chamber and the heat exchanger and is finally discharged out of a tail gas outlet of the heat exchanger. The transformation cost is low; the problems of reduction of heat exchange efficiency, increase of clearing cost and increase of shutdown maintenance time caused by a large quantity of dust in the tail gas entering the heat exchanger and adhered to the tube wall of the heat exchanger can be avoided, the production efficiency is improved, and the production cost is reduced; the sparks in the tail gas are effectively extinguished to prevent the sparks from entering the bag-type dust collector and burning out the bag; and moreover, natural gas consumption of the second combustion chamber of a curing furnace can be effectively reduced.

Description

A kind for the treatment of system of furnace cupola tail gas
Technical field
The present invention relates to field of Environment Protection, especially a kind for the treatment of system of furnace cupola tail gas.
Background technology
As shown in Figure 1, in existing rock cotton board production line, the tail gas that the vent gas treatment mode of furnace cupola is generally containing a large amount of dust enters the first combustion chambers burn by furnace cupola, fuel gas is wherein burnt, then enter heat exchanger to heat the air entering furnace cupola, enter multitube cooler cooling afterwards, then enter sack cleaner and filter out dust, finally by air-introduced machine, chimney is emptying.The problem of this kind of situation is that the tail gas containing a large amount of dust enters in heat exchanger, can be attached in exchanger tube wall, reduce heat exchanger effectiveness, have impact on heat transfer effect.After blow-on a couple of days, the temperature of hot blast has been down to less than 300 DEG C, does not reach the standard of outer hot stove hot blast.
Summary of the invention
The present invention is intended to solve the problem, provide a kind for the treatment of system of furnace cupola tail gas, its improvement cost is low, on the one hand a large amount of dust in tail gas can be avoided to enter in heat exchanger being attached to exchanger tube wall is brought: the reduction of heat exchanger effectiveness, the increase of disposal costs, the growth of servicing down times, enhance productivity, reduce production cost, effectively put out the Mars in tail gas on the one hand, avoid Mars to enter in sack cleaner and burn out cloth bag, effectively can reduce the gas consumption of curing oven second combustion chamber more on the one hand, its technical scheme adopted is as follows:
A kind for the treatment of system of furnace cupola tail gas, it is characterized in that, comprise: the multiple-pipe water cooler for reducing furnace cupola exhaust temperature of connecting successively, for filtering the sack cleaner of fine dusts in tail gas, the first combustion chamber and the heat exchanger for being heated the air entering furnace cupola by the tail gas of being derived by the first combustion chamber, the tail gas of being derived by furnace cupola is finally discharged by the offgas outlet of heat exchanger through multiple-pipe water cooler, sack cleaner, the first combustion chamber and heat exchanger successively.
On technique scheme basis, the treatment system of this furnace cupola tail gas also comprises curing oven and air-introduced machine, and the tail gas that the offgas outlet of described heat exchanger is discharged is introduced in each second combustion chamber of curing oven by air-introduced machine.
On technique scheme basis, described multiple-pipe water cooler is at least one, and during for two or more, they are connected mutually.
On technique scheme basis, described multiple-pipe water cooler is two.
Tool of the present invention has the following advantages: improvement cost is low; on the one hand a large amount of dust in tail gas can be avoided to enter in heat exchanger being attached to exchanger tube wall is brought: the growth of the reduction of heat exchanger effectiveness, the increase of disposal costs, servicing down times; enhance productivity; reduce production cost; effectively put out the Mars in tail gas on the one hand; avoid Mars to enter in sack cleaner and burn out cloth bag, more effectively can reduce the gas consumption of curing oven second combustion chamber on the one hand.
Accompanying drawing explanation
Fig. 1: a kind of structural representation of the treatment system of existing furnace cupola tail gas;
Fig. 2: structural representation of the present invention;
Detailed description of the invention
Below in conjunction with accompanying drawing and example, the invention will be further described:
As shown in Figure 2, a kind for the treatment of system of furnace cupola tail gas, it is characterized in that, comprise: the multiple-pipe water cooler 2 for reducing furnace cupola exhaust temperature of connecting successively, for filtering sack cleaner 3, first combustion chamber 4 of fine dusts in tail gas and the heat exchanger 5 for being heated the air entering furnace cupola 1 by the tail gas of being derived by the first combustion chamber 4, the tail gas of being derived by furnace cupola is finally discharged by the offgas outlet of heat exchanger through multiple-pipe water cooler, sack cleaner, the first combustion chamber and heat exchanger successively.The tail gas outlet of furnace cupola 1, multiple-pipe water cooler 2, sack cleaner 3, first combustion chamber 4, heat exchanger 5 are connected by pipeline, and the air outlet slit of described heat exchanger 5 is connected by pipeline with the air inlet of furnace cupola 1.During use, multiple-pipe water cooler 2 first reduces the temperature of tail gas; because bags in bag-type dust remover has certain requirement to the temperature that it tolerates; then filter out fine dusts in tail gas by sack cleaner, thus a large amount of dust avoided in tail gas to enter in heat exchanger 5 to be attached to exchanger tube wall are brought: the growth of the reduction of heat exchanger effectiveness, the increase of disposal costs, servicing down times.Improve production efficiency, reduce production cost.Clean tail gas enters into the first combustion chamber 4 and burns, then the air that heat exchanger 5 heating enters furnace cupola is entered, stable heat exchange efficiency can be ensured, after tested: hot blast (entering the air of furnace cupola) temperature continuous more than 30 days > 400 DEG C.
Will be understood that: heat exchanger has an air outlet slit and the air intlet that be communicated with corresponding to it, it also has an offgas outlet and the inlet exhaust gas that be communicated with corresponding to it simultaneously.
Will be understood that: the tail gas that the offgas outlet of heat exchanger 5 is discharged can introduce desulfurizing tower 6 by air-introduced machine.
As shown in Figure 2, in order to further utilize the tail gas of being discharged by heat exchanger 5, preferably, the treatment system of this furnace cupola tail gas also comprises curing oven (not shown) and air-introduced machine 7, the tail gas that the offgas outlet of described heat exchanger 5 is discharged is introduced in each second combustion chamber of curing oven by air-introduced machine 7, can reduce the gas consumption of curing oven second combustion chamber greatly.
Preferably, described multiple-pipe water cooler 2 is two, and they are connected mutually.Multiple-pipe water cooler 2 one aspect of mutual series connection can reduce the temperature of tail gas, can make tail gas in multiple-pipe water cooler, do the flowing of S shape on the other hand, thus effectively put out the Mars in tail gas, avoid Mars to enter in sack cleaner 3 and burn out cloth bag.It is negative pressure state in the treatment system of furnace cupola tail gas, because the treatment system of traditional furnace cupola tail gas cannot solve Mars problem well, in other words because the problem of Mars is difficult to effectively be solved always, and once Mars enters sack cleaner, to burn cloth bag, cause the shut-down of whole production line, the dimension multiple cycle is long, cost is too large, therefore the conventional thinking that result in the art personnel is to a certain extent the upstream (as shown in Figure 1) the first combustion chamber and heat exchanger being arranged at multiple-pipe water cooler and sack cleaner, utilize the fuel gas in the first combustion chambers burn tail gas, then heat exchanger and multiple-pipe water cooler is utilized to reduce the temperature of tail gas thus avoid Mars to enter in sack cleaner, the application has carried out effective solution by another approach to it.
Describe the present invention by way of example above, but the invention is not restricted to above-mentioned specific embodiment, all any changes of doing based on the present invention or modification all belong to the scope of protection of present invention.

Claims (3)

1. the treatment system of a furnace cupola tail gas, it is characterized in that, comprise: the multiple-pipe water cooler for reducing furnace cupola exhaust temperature of connecting successively, for filtering the sack cleaner of fine dusts in tail gas, first combustion chamber and the heat exchanger for the tail gas of being derived by the first combustion chamber is heated the air entering furnace cupola, the tail gas of being derived by furnace cupola is successively through multiple-pipe water cooler, sack cleaner, first combustion chamber and heat exchanger are finally discharged by the offgas outlet of heat exchanger, preferably, described multiple-pipe water cooler is at least one, during for two or more, they are connected mutually.
2. the treatment system of a kind of furnace cupola tail gas according to claim 1, is characterized in that: also comprise curing oven and air-introduced machine, and the tail gas that the offgas outlet of described heat exchanger is discharged is introduced in each second combustion chamber of curing oven by air-introduced machine.
3. the treatment system of a kind of furnace cupola tail gas according to claim 1, is characterized in that: described multiple-pipe water cooler is two.
CN201610078259.7A 2016-01-29 2016-01-29 Cupola tail gas treatment system Pending CN105536374A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610078259.7A CN105536374A (en) 2016-01-29 2016-01-29 Cupola tail gas treatment system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610078259.7A CN105536374A (en) 2016-01-29 2016-01-29 Cupola tail gas treatment system

Publications (1)

Publication Number Publication Date
CN105536374A true CN105536374A (en) 2016-05-04

Family

ID=55816224

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610078259.7A Pending CN105536374A (en) 2016-01-29 2016-01-29 Cupola tail gas treatment system

Country Status (1)

Country Link
CN (1) CN105536374A (en)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10337432A (en) * 1997-06-09 1998-12-22 Chiyoda Eng Kk Exhaust gas treatment and device therefor
CN1814547A (en) * 2006-03-06 2006-08-09 云南阳光基业能源科技有限公司 Electric furnace method yellow phosphorus tail gas residual heat comprehensive balance utilizing system
CN101441034A (en) * 2008-12-01 2009-05-27 合肥合意环保科技工程有限公司 Method and device for purifying enclosed calcium carbide furnace gas
CN101539369A (en) * 2009-04-23 2009-09-23 上海宝钢工程技术有限公司 Flue gas waste heat recovery and negative energy consumption dust-removal system for electric stove
CN103031431A (en) * 2011-09-30 2013-04-10 中国科学院过程工程研究所 System for oxidizing roasting-reducing roasting of titaniferous iron concentrate and roasting process
CN103145328A (en) * 2013-03-13 2013-06-12 青岛青力环保设备有限公司 Method for comprehensively utilizing basalt blast furnace slag in preparation of rock wool board
CN203024566U (en) * 2012-12-19 2013-06-26 朱瑞辉 Energy-saving and environment-protecting high wind temperature cupola system device
CN103468847A (en) * 2013-08-14 2013-12-25 北京首钢国际工程技术有限公司 Iron bath method high temperature gas waste heat and waste energy utilization and dry method dedusting technology
CN205461458U (en) * 2016-01-29 2016-08-17 青岛青力环保设备有限公司 Processing system of furnace cupola tail gas

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10337432A (en) * 1997-06-09 1998-12-22 Chiyoda Eng Kk Exhaust gas treatment and device therefor
CN1814547A (en) * 2006-03-06 2006-08-09 云南阳光基业能源科技有限公司 Electric furnace method yellow phosphorus tail gas residual heat comprehensive balance utilizing system
CN101441034A (en) * 2008-12-01 2009-05-27 合肥合意环保科技工程有限公司 Method and device for purifying enclosed calcium carbide furnace gas
CN101539369A (en) * 2009-04-23 2009-09-23 上海宝钢工程技术有限公司 Flue gas waste heat recovery and negative energy consumption dust-removal system for electric stove
CN103031431A (en) * 2011-09-30 2013-04-10 中国科学院过程工程研究所 System for oxidizing roasting-reducing roasting of titaniferous iron concentrate and roasting process
CN203024566U (en) * 2012-12-19 2013-06-26 朱瑞辉 Energy-saving and environment-protecting high wind temperature cupola system device
CN103145328A (en) * 2013-03-13 2013-06-12 青岛青力环保设备有限公司 Method for comprehensively utilizing basalt blast furnace slag in preparation of rock wool board
CN103468847A (en) * 2013-08-14 2013-12-25 北京首钢国际工程技术有限公司 Iron bath method high temperature gas waste heat and waste energy utilization and dry method dedusting technology
CN205461458U (en) * 2016-01-29 2016-08-17 青岛青力环保设备有限公司 Processing system of furnace cupola tail gas

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C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
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Application publication date: 20160504