CN104880090B - Furnace cupola fuel gas long-distance sand transport reuse means - Google Patents
Furnace cupola fuel gas long-distance sand transport reuse means Download PDFInfo
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- CN104880090B CN104880090B CN201510295018.3A CN201510295018A CN104880090B CN 104880090 B CN104880090 B CN 104880090B CN 201510295018 A CN201510295018 A CN 201510295018A CN 104880090 B CN104880090 B CN 104880090B
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- China
- Prior art keywords
- fuel gas
- gas
- furnace cupola
- reaction vessel
- sand transport
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- 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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- 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
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Abstract
The present invention relates to casting field, specifically a kind of furnace cupola fuel gas long-distance sand transport reuse means solves furnace cupola fuel gas and has not been able to long-distance sand transport Utilizing question.The device includes combustible gas collecting device（1）, gas pipeline（5）, and gas pipeline（5）On the fuel gas dust arrester that sets gradually（2）, fuel gas purifying plant（3）, air-introduced machine（4）；The combustible gas collecting device（1）It is arranged at cupola charging mouthful below, and is set against charge door, is fixedly connected with furnace cupola, the air-introduced machine（4）By gas pipeline（5）It is connected using equipment with the fuel gas such as boiler.Using this fuel gas long-distance sand transport reuse means, the fuel gas based on CO gases that can in process of production discharge furnace cupola, remote conveying is sent to the equipment such as boiler and obtains fully effectively recycling, and realizes the purpose of industry energy conservation emission reduction.
Description
Technical field
The present invention relates to casting field, specifically a kind of furnace cupola fuel gas long-distance sand transport reuse means.
Background technology
Existing Some Enterprises are utilized in device in blast-heating cupola burner gas residual heat, utilize what CO gases in furnace gas burnt
Design, but actual utilizing status are not obvious.《Heilungkiang is metallurgical》In publication page 20 and page 21 of the 3rd phase in 2001, publication
Jixi sky dragon ductile iron pipe Co., Ltd, author：Wang Chunxing, written by " top formula blast-heating cupola centrifugal ductile cast tube production in
Application " as soon as in text, there is again burn discussion of the formula blast-heating cupola in top using CO in furnace gas.But the profit of burning again of this kind of CO
With there are two kinds of defects, one is the top that top formula blast-heating cupola is arranged on charge door, because CO gas densities are slightly less than air
Density, the CO gases in furnace cupola can be scattered an equal part from charge door naturally when by charge door；Two is because adding
The air of material mouth enters, and can more reduce CO gas concentrations.Under regular situation, CO gas concentrations stabilization exists at cupola charging mouthful
15-18%, such as CO gas concentrations are down to less than 12.5%, will not realize burning again.
In the prior art, there is not yet the fuel gas based on CO gases that furnace cupola is discharged in process of production（CO、
CH4、H2Deng）The report that long-distance sand transport is recycled.
In sum, in the prior art, the fuel gas based on CO gases that furnace cupola is discharged in process of production
（CO、CH4、H2Deng）Without can effectively utilize, long-distance sand transport recycling is more not carried out, is unfavorable for industry energy conservation emission reduction.
The content of the invention
The fuel gas that the present invention is discharged in process of production in order to solve existing furnace cupola has not been able at a distance effectively again
A kind of problem for utilizing, there is provided furnace cupola fuel gas long-distance sand transport reuse means.
The present invention adopts the following technical scheme that realization：Furnace cupola fuel gas long-distance sand transport reuse means, bag
Include fuel gas dust arrester, the fuel gas set gradually on combustible gas collecting device, gas pipeline and gas pipeline
Purifying plant, air-introduced machine；The combustible gas collecting device is arranged at cupola charging mouthful below, and is set against charge door,
It is fixedly connected with furnace cupola；The air-introduced machine utilizes equipment by gas pipeline and fuel gas（For example：Boiler etc.）It is connected.
Combustible gas collecting device of the present invention be cylinder loop configuration, including be coaxially disposed inner cylinder, outer barrel and
Close off and formed between the ring-type flat deck roof and ring-type flat underside at the top and bottom of inside and outside cylinder, inside and outside cylinder annular collection headroom,
The diameter of its inner cylinder and outer barrel is identical with the inside and outside footpath of furnace cupola respectively, about 1 meter of height, and inner cylinder bottom uniformly offers some
Fuel gas access aperture, outer barrel top is provided with fuel gas delivery outlet, and fuel gas delivery outlet is connected with gas pipeline.
As the improvement of combustible gas collecting device of the present invention, between the inside and outside cylinder of the combustible gas collecting device
The space separating tube being coaxially disposed with inside and outside cylinder is additionally provided with, the bottom of space separating tube is fixedly connected with ring-type flat underside, it is empty
Between the uniform height position for offering the fuel gas tap opened up on fuel gas tap, and space separating tube on separating tube
Put consistent with the fuel gas access aperture height and position that inner cylinder bottom uniformly opens up；Fuel gas access aperture opens up height on inner cylinder
Degree position is below the separating tube height of space；Spark is filled between space separating tube and inner cylinder air inlet to catch and thick grit stop
Material, such as stainless steel turning material, slag and the corrosion-resistant fine-structure mesh of resistance to rusted metal.
In the presence of system air-introduced machine, furnace cupola fuel gas etc. mix furnace gas enter collection device when, due to
Caught and thick grit barrier material equipped with spark between the collection device inner cylinder air inlet and space separating tube, can effectively prevent punching
The entrance of spark and thick grit in its stove, can purify into gas in collection device, and can prevent because of the combustible gas that spark triggers
Body explosion danger.
As the further improvement of combustible gas collecting device of the present invention, the outer barrel of the combustible gas collecting device
Top is provided with inspection socket, and is equipped with Explosion-proof cap.
Inspection socket is used to check and change spark in collection device and catches and thick grit barrier material, is configured on inspection socket
Explosion-proof cap can further prevent to cause the explosion danger of fuel gas because system operatio is improper.
Fuel gas purifying plant of the present invention is that bottom holds in the cylindrical confined reaction in inverted conical, middle and upper part
Device, is provided with fuel gas air inlet pipe and escaping pipe, the air inlet of air inlet pipe and the gas outlet of escaping pipe at the top of reaction vessel
It is connected with gas pipeline respectively；Fuel gas air inlet pipe is stretched into reaction vessel, and the gas outlet of air inlet pipe is located at reaction vessel
Middle and lower part；The lime aqueous solution for flooding fuel gas air inlet pipe gas outlet, the bottom of reaction vessel are perfused with reaction vessel
Breast hole is provided with, and is equipped with opening and closing gate valve；Reaction vessel upper lateral part is provided with observation panel to be opened/closed.The observation panel can rise
Enter with limewash to toward furnace gases such as fuel gas in addition limewash in reaction vessel or lime and water, and observing response container
Row chemical reaction situation.CO in the furnace gases such as fuel gas2Chemical reaction is carried out for common knowledge with limewash.
Setting fuel gas purifying plant can effectively improve the concentration of system fuel gas so that system equipment is using flammable
The effect of gas is more preferable.
Fuel gas dust arrester of the present invention is cyclone dust collectors or sack cleaner（Deduster is common knowledge）,
The dust that fuel gas dust arrester can be removed preferably in fuel gas and furnace gas mixed gas is set, makes fuel gas more clear
It is clean.
It is defeated that air-introduced machine of the present invention plays fuel gas in furnace cupola fuel gas long-distance sand transport reuse means
Send the effect of power.
The present invention is rational in infrastructure, succinct easy.Using this fuel gas long-distance sand transport reuse means, can will be soaring
The fuel gas based on CO gases that stove is discharged in process of production, remote conveying is sent to the equipment such as boiler and obtains fully effectively
Recycle, realize the purpose of industry energy conservation emission reduction.
Brief description of the drawings
It is structural representation of the invention that Fig. 1 is；
Fig. 2 is the structural representation of combustible gas collecting device；
Fig. 3 is the B-B sectional views of Fig. 2；
Fig. 4 is fuel gas purifying plant structural representation；
In figure：1- collection devices, 2- dust arresters, 3- purifying plants, 4- air-introduced machines, 5- gas pipelines, 1-1 inner cylinders, 1-2
Outer barrel, 1-3 spaces separating tube, 1-4 inner cylinder air inlets, 1-5 spaces separating tube gas outlet, 1-6 outer barrels gas outlet, 1-7 ring-shaped flats
Annular collection headroom between top cover, 1-8 ring-type flat undersides, 1-9 inner/outer tubes, 1-10 spark capture materials, 1-11 inspection sockets, 1-12 prevents
Quick-fried lid, 3-1 air inlet pipe, 3-2 escaping pipes, 3-3 lime aqueous solutions, 3-4 slag-drip openings, 3-5 opening and closing gate valves, 3-6 observation panels.
Specific embodiment
It is as shown in figure 1, furnace cupola fuel gas long-distance sand transport reuse means including combustible gas collecting device 1, defeated
Fuel gas dust arrester 2, fuel gas purifying plant 3, the air-introduced machine 4 set gradually in feed channel 5 and gas pipeline 5；
The combustible gas collecting device 1 is arranged at cupola charging mouthful below, and is set against charge door, is fixed with furnace cupola and connected
Connect；The air-introduced machine 4 is connected with fuel gas by gas pipeline 5 using equipment.
As shown in Figure 2,3, the combustible gas collecting device 1 is cylinder loop configuration, including the inner cylinder 1- being coaxially disposed
1st, outer barrel 1-2, and close off ring-type flat deck roof 1-7 and ring-type flat underside 1-8 at the top and bottom of inside and outside cylinder, inside and outside cylinder
Between formed annular collection headroom 1-9；And inside and outside footpath of the diameter of inside and outside cylinder respectively with furnace cupola is identical；Inner cylinder 1-1 bottoms are equal
It is even to offer some fuel gas access aperture 1-4；Outer barrel top is provided with fuel gas delivery outlet 1-6, fuel gas delivery outlet
1-6 is connected with gas pipeline 5.It is additionally provided between the inside and outside cylinder of the combustible gas collecting device 1 and is coaxially set with inside and outside cylinder
The space separating tube 1-3 for putting, space separating tube 1-3 bottoms are fixedly connected with ring-type flat underside 1-8, on space separating tube 1-3
It is even to offer fuel gas tap 1-5, and the fuel gas tap 1-5 opened up on space separating tube 1-3 height and position
It is consistent with the fuel gas access aperture 1-4 height and positions that inner cylinder 1-1 bottoms uniformly open up；Space separating tube 1-3 and inner cylinder 1-1 it
Between fill spark and catch and thick grit barrier material 1-10；The height and position that opens up of fuel gas access aperture 1-4 exists on inner cylinder 1-1
Below the separating tube 1-3 height of space.The outer barrel 1-2 tops of the combustible gas collecting device 1 are provided with inspection socket 1-11, and match somebody with somebody
It is provided with Explosion-proof cap 1-12.
As shown in figure 4, the fuel gas purifying plant 3 is bottom in cylindrical closed in inverted conical, middle and upper part
Reaction vessel, is provided with fuel gas air inlet pipe 3-1 and escaping pipe 3-2 at the top of reaction vessel, the air inlet of air inlet pipe 3-1 and
The gas outlet of escaping pipe 3-2 is connected with gas pipeline 5 respectively；Fuel gas air inlet pipe 3-1 is stretched into reaction vessel, air inlet pipe 3-
1 gas outlet is located at the middle and lower part of reaction vessel；It is perfused with reaction vessel and flooded fuel gas air inlet pipe 3-1 gas outlets
Lime aqueous solution 3-3；The bottom of reaction vessel is provided with breast hole 3-4, and is equipped with opening and closing gate valve 3-5；Reaction vessel top
Side wall is provided with observation panel 3-6 to be opened/closed.
During specific implementation, the combustible gas collecting device（1）By inner cylinder heat-resisting steel sheet and plate, remaining is welded with general steel plate
It is made, below furnace cupola top-feed mouthful, is set against charge door, upper top surface and bottom surface is fixed with furnace binding respectively
Connection, fuel gas and furnace gas mixed gas are in system air-introduced machine（4）In the presence of, from collection device（1）Inner cylinder（1-1）Bottom
The porous air inlet being uniformly arranged enters collection device（1）.Fuel gas and furnace gas mixed gas are entering collection device（1）
When, due to inner cylinder（1-1）With space separating tube（1-3）Between fill barrier material effect, on the one hand block thick grit
Entrance, the spark in furnace gas on the other hand can be enable to put out.
Fuel gas passes through collection device with furnace gas mixed gas（1）, through collection device（1）Outer barrel（1-2）Upper lateral part sets
The gas outlet put（1-6）Output, by gas pipeline（5）It is delivered to dust arrester（2）.Gas pipeline（5）From appropriate bore
Steel pipe；Dust arrester（2）It is steel structure, outsourcing or self-control using cyclone dust collectors or sack cleaner.
Fuel gas passes through dust arrester with furnace gas mixed gas（2）After purification, then by gas pipeline（5）Into flammable
Gas purifying device（3）.Purifying plant（3）Also it is steel construction, in purifying plant（3）Needed deployed limewash before operation first
Solution is added in the closed reaction vessel of the device, after starting system operation, the fuel gas entered into reaction vessel
Can fully be chemically reacted with lime aqueous solution Deng furnace gas, a large amount of CO in furnace gas2It is absorbed（The chemical reaction is known
General knowledge）, the CaCO generated after reaction3Pulp water is available for furnace cupola slag making to use after being dried through slag-drip opening discharge precipitation.
The furnace gases such as fuel gas pass through fuel gas purifying plant（3）Afterwards, the fuel gas that concentration is accordingly improved, warp
System conveys power air-introduced machine（4）Effect, by connecting pipe be delivered to the equipment such as boiler recycle.
Embodiment
Furnace cupola fuel gas long-distance sand transport reuse means of the present invention should on 5 tons of internal heat type blast-heating cupolas
With and its advantage analyze.
Working condition：The present embodiment is two 5 tons of internal heat type blast-heating cupola rotations maintenance productions, while being a centrifugation
Cast tube production line and a lost foam process pipe fitting production line supply iron liquid, this lost foam process pipe fitting line configuration have one
2 tons of boiler supplying steam of seat.2 tons of boiler per tour of the seat need to consume raw coal 800-1000 ㎏, apart from about 100 meters of furnace cupola.
Specific implementation：1st, processing and manufacturing combustible gas collecting device, fuel gas dust arrester, fuel gas purification respectively
Device and purchase gas transmission pipe and air-introduced machine；2nd, combustible gas collecting device, fuel gas dust arrester, fuel gas are carried
Pure device and the gas transmission purchased carry out installation and debugging with steel pipe and air-introduced machine according to scene and furnace cupola, and get quick lime etc. ready
Auxiliary material and apparatus, connect the preparation such as water source；3rd, by the CO discharged in 5 tons of internal heat types blast-heating cupola fusion process
It is defeated after the fuel gas such as combustible gas collecting device, dust arrester, purifying plant, air-introduced machine utilize system Deng fuel gas
2 tons of boilers are delivered to use.
Beneficial effect is analyzed：It is equal that 5 tons of furnace cupola per tour of this produce the fuel gas produced during about 50 tons of iron liquids
In the energy of about 1000 ㎏ raw coal（CO gases are calculated in now only pressing fuel gas, and cast iron per ton can be produced in fusion process
30-50 ㎏ CO gases, 50 tons is 1500-2500 ㎏ CO gases, and calorific capacity is calculated by about 2000 ㎏ CO gases, and calorific capacity is about
4500 kilocalories, add other fuel gas CH4And H2Deng calorific value, the calorific capacity of 1000 ㎏ raw coal is about as much as）, just it is this
2 tons of boilers of seat provide the energy.After 2 tons of boilers of the seat substitute raw coal combustion using fuel gas in furnace cupola, per tour can save original
The ㎏ of coal about 1000, it is possible to decrease 200-260 yuan/ton of evaporative pattern castings production cost（It is 1 ton, valency that the ㎏ of raw coal about 1000 is saved in per tour
Value：600-780 yuan/ton, per tour is calculated by 3 tons of pipe fitting finished products, and ton reduces production cost 200-260 units）, can reduce by about 20 ㎏
SO2, 260 ㎏ lime-ash, 440 ㎏ CO2And the waste gas waste sludge discharge such as 300-500 ㎏ CO, add 5 tons of furnace cupola per tour burning
The fuel gas produced during 6.25 tons of raw coal blocks is utilized, and can reduce by about 2750 ㎏ CO2 The waste gas such as about 2500 ㎏ CO（Root
20 ㎏ SO are discharged according to 1 ton of raw coal combustion of relevant information2, 260 ㎏ lime-ash, 440 ㎏ CO2And 300-500 ㎏ CODeng waste gas）, it is economical
With environmental benefit clearly.
Claims (4)
1. a kind of furnace cupola fuel gas long-distance sand transport reuse means, including combustible gas collecting device（1）, gas pipeline
（5）And gas pipeline（5）On the fuel gas dust arrester that sets gradually（2）, fuel gas purifying plant（3）, air-introduced machine
（4）；The combustible gas collecting device（1）It is arranged at cupola charging mouthful below, and is set against charge door, it is solid with furnace cupola
Fixed connection；The air-introduced machine（4）By gas pipeline（5）It is connected using equipment with fuel gas, it is characterised in that：It is described can
Combustion gas collector（1）It is cylinder loop configuration, including the inner cylinder being coaxially disposed（1-1）, outer barrel（1-2）, and seal respectively
The ring-type flat deck roof closed at the top and bottom of inside and outside cylinder（1-7）With ring-type flat underside（1-8）, annular gas collection is formed between inside and outside cylinder empty
Between（1-9）；And inside and outside footpath of the diameter of inside and outside cylinder respectively with furnace cupola is identical；Inner cylinder（1-1）Bottom uniformly offers some
Fuel gas access aperture（1-4）；Outer barrel top is provided with fuel gas delivery outlet（1-6）, fuel gas delivery outlet（1-6）With it is defeated
Feed channel（5）It is connected.
2. furnace cupola fuel gas long-distance sand transport reuse means according to claim 1, it is characterised in that：It is described
Combustible gas collecting device（1）Inside and outside cylinder between be additionally provided with the space separating tube being coaxially disposed with inside and outside cylinder（1-3）, space
Separating tube（1-3）Bottom and ring-type flat underside（1-8）It is fixedly connected, space separating tube（1-3）On uniformly offer fuel gas
Tap（1-5）, and space separating tube（1-3）On the fuel gas tap that opens up（1-5）Height and position and inner cylinder（1-1）
The fuel gas access aperture that bottom uniformly opens up（1-4）Height and position is consistent；Space separating tube（1-3）With inner cylinder（1-1）Between
Filling spark catches and thick grit barrier material（1-10）；Inner cylinder（1-1）Upper fuel gas access aperture（1-4）Open up height position
Put in space separating tube（1-3）Below height.
3. furnace cupola fuel gas long-distance sand transport reuse means according to claim 1 and 2, it is characterised in that：Institute
State combustible gas collecting device（1）Outer barrel（1-2）Top is provided with inspection socket（1-11）, and it is equipped with Explosion-proof cap（1-12）.
4. furnace cupola fuel gas long-distance sand transport reuse means according to claim 1, it is characterised in that：It is described can
Combustion gas purifying device（3）It is bottom in the cylindrical closed reaction vessel in inverted conical, middle and upper part, the top of reaction vessel
It is provided with fuel gas air inlet pipe（3-1）And escaping pipe（3-2）, air inlet pipe（3-1）Air inlet and escaping pipe（3-2）Outlet
Mouth respectively with gas pipeline（5）Connection；Fuel gas air inlet pipe（3-1）Stretch into reaction vessel, air inlet pipe（3-1）Gas outlet
Positioned at the middle and lower part of reaction vessel；It is perfused with reaction vessel and flooded fuel gas air inlet pipe（3-1）The limewash of gas outlet
Solution（3-3）；The bottom of reaction vessel is provided with breast hole（3-4）, and it is equipped with opening and closing gate valve（3-5）；Reaction vessel top
Side wall is provided with observation panel to be opened/closed（3-6）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510295018.3A CN104880090B (en) | 2015-06-02 | 2015-06-02 | Furnace cupola fuel gas long-distance sand transport reuse means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510295018.3A CN104880090B (en) | 2015-06-02 | 2015-06-02 | Furnace cupola fuel gas long-distance sand transport reuse means |
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| Publication Number | Publication Date |
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| CN104880090A CN104880090A (en) | 2015-09-02 |
| CN104880090B true CN104880090B (en) | 2017-06-13 |
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| US5988080A (en) * | 1995-10-03 | 1999-11-23 | Ebara Corporation | Waste heat recovery system and power generation system with dust filtration |
| CN101942538A (en) * | 2010-06-24 | 2011-01-12 | 北京国华新兴节能环保科技有限公司 | Process and equipment for dust collection and heat recovery by converter gas dry method |
| CN102278875A (en) * | 2011-08-31 | 2011-12-14 | 王洪旗 | Energy-saving and environment-friendly cupola furnace |
| CN202139252U (en) * | 2011-06-24 | 2012-02-08 | 北京首钢国际工程技术有限公司 | Spark collecting type cloth-bag purifying and recycling device using converter coal gas dry method |
| CN204694088U (en) * | 2015-06-02 | 2015-10-07 | 阳城县华王通用离心铸管厂 | Furnace cupola fuel gas long-distance sand transport re-use device |
-
2015
- 2015-06-02 CN CN201510295018.3A patent/CN104880090B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5988080A (en) * | 1995-10-03 | 1999-11-23 | Ebara Corporation | Waste heat recovery system and power generation system with dust filtration |
| CN101942538A (en) * | 2010-06-24 | 2011-01-12 | 北京国华新兴节能环保科技有限公司 | Process and equipment for dust collection and heat recovery by converter gas dry method |
| CN202139252U (en) * | 2011-06-24 | 2012-02-08 | 北京首钢国际工程技术有限公司 | Spark collecting type cloth-bag purifying and recycling device using converter coal gas dry method |
| CN102278875A (en) * | 2011-08-31 | 2011-12-14 | 王洪旗 | Energy-saving and environment-friendly cupola furnace |
| CN204694088U (en) * | 2015-06-02 | 2015-10-07 | 阳城县华王通用离心铸管厂 | Furnace cupola fuel gas long-distance sand transport re-use device |
Non-Patent Citations (1)
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| 《冲天炉炉气净化与余热回用综述》;王守忠;《铸造设备研究》;19840229(第02期);第38页第3部分 * |
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