CN106678857B - A kind of bone coal spontaneous combustion ore body thermal energy comprehensive recovery system - Google Patents

A kind of bone coal spontaneous combustion ore body thermal energy comprehensive recovery system Download PDF

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Publication number
CN106678857B
CN106678857B CN201710038379.9A CN201710038379A CN106678857B CN 106678857 B CN106678857 B CN 106678857B CN 201710038379 A CN201710038379 A CN 201710038379A CN 106678857 B CN106678857 B CN 106678857B
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thermal energy
heat exchange
heat
bone coal
spontaneous combustion
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CN201710038379.9A
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CN106678857A (en
Inventor
徐忠理
田学达
王云土
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Hangzhou Flaming Mountains Hot Spring Resort Co Ltd
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Hangzhou Flaming Mountains Hot Spring Resort Co Ltd
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23JREMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00Arrangements of devices for treating smoke or fumes
    • F23J15/06Arrangements of devices for treating smoke or fumes of coolers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/14Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
    • B01D53/1456Removing acid components
    • B01D53/1481Removing sulfur dioxide or sulfur trioxide
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23JREMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00Arrangements of devices for treating smoke or fumes
    • F23J15/02Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23JREMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00Arrangements of devices for treating smoke or fumes
    • F23J15/02Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
    • F23J15/04Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material using washing fluids
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2258/00Sources of waste gases
    • B01D2258/02Other waste gases
    • B01D2258/0283Flue gases
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23JREMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2215/00Preventing emissions
    • F23J2215/20Sulfur; Compounds thereof
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23JREMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2215/00Preventing emissions
    • F23J2215/40Carbon monoxide
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23JREMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2215/00Preventing emissions
    • F23J2215/50Carbon dioxide
    • 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
    • Y02E20/30Technologies for a more efficient combustion or heat usage

Abstract

The invention discloses a kind of bone coal spontaneous combustion ore body thermal energy comprehensive recovery systems, including:Collect the thermal energy recovery tube for the tail gas that stone coal combustion generates;The heat exchange unit of heat exchange can be carried out with thermal energy recovery tube;Tail gas for being generated to stone coal combustion carries out the clean unit of purified treatment.The smog tail gas that bone coal spontaneous combustion generates can be carried out heat exchange recycling by the present invention, and it will produce the pernicious gases such as a large amount of sulfur dioxide, carbon dioxide, carbon monoxide after bone coal spontaneous combustion, environmental pollution is caused in order to prevent, the present invention has also carried out purified treatment to tail gas, passes through clean unit purified treatment.Therefore the present invention not only makes full use of the smog exhaust heat-energy that bone coal spontaneous combustion generates, and can also carry out purified treatment to tail gas, substantially increase the utilization rate of resource.

Description

A kind of bone coal spontaneous combustion ore body thermal energy comprehensive recovery system
Technical field
The invention belongs to ecological, environmental protective technical fields, and in particular to a kind of bone coal spontaneous combustion ore body thermal energy comprehensive recovery system.
Background technology
Bone coal is formed in a kind of caustobiolith of deposition of Promyelocytic leukemia and Eopaleozoic.In black or black gray expandable.Greatly Have the characteristics that high ash, high-sulfur, lower calorific value and hardness are big more.Bone coal is a kind of high rotten sapropelic coal or algal coal.Its ingredient In addition to containing organic carbon, silica, calcium oxide and a small amount of iron oxide, aluminium oxide and magnesia etc. are gone back.Bone coal has various differences Classification.By ash content and calorific value, general bone coal and high-quality bone coal can be divided into:General stone pit ash is 40%~90%, hair Heat is at 16.7 thousand Js/g or less;High-quality stone pit ash is 20%~40%, and calorific value is 16.7~27.1 thousand Js/g.It presses Structure, construction can be divided into lump stone coal, granular bone coal, flakey bone coal and powdery bone coal.By the master of bone coal Minerals impurity It is secondary, it is divided into siliceous bone coal, calcareous bone coal etc..
Bone coal is the abundantest with south Qingling area reserves extensively in distribution in China.Bone coal can make fuel, and the clinker after burning can The construction materials such as charing brick, cement are made, the metallic elements such as vanadium, uranium, molybdenum, nickel, copper, cobalt can be also extracted from bone coal.Phosphorus content Higher high-quality bone coal is in black, has half light pool, impurity few;The less bone coal of phosphorus content is in inclined grey, intensely dark, It is mingled with more pyrite, quartz vein and phosphorus, calcareous concretion.The calorific value of bone coal is not high, generally on 800 kilocalories/kilogram left side The right side is a kind of low calorie fuels.
China is a few one of country for possessing bone coal resource in the world, is mainly distributed on the lake of the middle and lower reach of Yangtze River South, Hubei, Anhui, Jiangxi, the Zhejiang provinces Deng Quemei.China's bone coal spreads all over more than 20, China provinces and regions, only one, Zhejiang to Guangxi It is about more than 1600 kilometers of stone coal mine band, just contains 100,000,000 tons or more of vanadic anhydride.Wherein Zhejiang Linan flame hill is for I The bone coal mine of state's unique spontaneous combustion decades.
Mining area with bone coal is typically easy to since coalfield self-energy is gathered and is nowhere discharged so that bone coal occurs certainly Combustion, eventually leads to coal burning.And it is harmful to will produce a large amount of sulfur dioxide, carbon dioxide, carbon monoxide after bone coal spontaneous combustion etc. Gas can also weaken soil fertility in addition to smell is hurted sb.'s feelings, and endanger crops, form Acid Rain Effect water quality.But the sulphur iron simultaneously in bone coal Mine, phosphorite nodule ingredient are higher, and the heat that they are discharged in oxidation process is high, it is generally the case that the heat that bone coal spontaneous combustion generates Amount cannot be effectively utilized, and lead to the waste of resource.
Invention content
To solve the above-mentioned problems, the present invention provides a kind of bone coal spontaneous combustion ore body thermal energy comprehensive recovery systems, fully profit The heat generated with bone coal spontaneous combustion, improves the utilization rate of resource.
The technical scheme is that:A kind of bone coal spontaneous combustion ore body thermal energy comprehensive recovery system, including:
Collect the thermal energy recovery tube for the tail gas that stone coal combustion generates;
The heat exchange unit of heat exchange can be carried out with thermal energy recovery tube;
Tail gas for being generated to stone coal combustion carries out the clean unit of purified treatment.
The smog tail gas that bone coal spontaneous combustion generates enters in thermal energy recovery tube, and smog tail gas and the thermal energy recovery tube of high heat are sent out Heat exchanges, then heat exchange occurs by thermal energy recovery tube and heat exchange unit, transfers heat to heat exchange unit, then pass through Heat exchange unit carries out the utilization of thermal energy.Will produce a large amount of sulfur dioxide, carbon dioxide, carbon monoxide etc. after bone coal spontaneous combustion has Evil gas, causes environmental pollution, the present invention also to carry out purified treatment to tail gas, at clean unit purification in order to prevent Reason.
In the present invention there are many structure types of heat exchange unit, preferably, the heat exchange unit includes the first heat Crosspoint and the second heat exchange unit, first heat exchange unit include the internal heat exchange for being connected with heat exchange medium Pipe, the heat-exchange tube are wound in thermal energy recycling pipe outer wall.
With thermal energy recovery tube heat exchange occurs for heat-exchange tube, and then heat-exchange tube is the heat exchange being located in heat-exchange tube Medium carries out heat exchange, preferably, the heat exchange medium is water.
Preferably, second heat exchange unit includes the heat exchange jacket being set in outside thermal energy recovery tube, the heat It exchanges and forms the gas compartment being passed through for air between set inner wall and thermal energy recycling pipe outer wall, the side of the heat exchange jacket offers Enter the air inlet inside heat exchange jacket for air, the side opposite with air inlet offers the exhaust outlet being discharged for air, institute It states heat exchange jacket inner wall and is equipped with heat-exchange fin.
External air enters from air inlet in gas compartment, by heat-exchange fin so that heat in thermal energy recovery tube with Heat exchange occurs for air, and the air for carrying out heat exchange is discharged from exhaust outlet again.
The pernicious gases such as a large amount of sulfur dioxide, carbon dioxide, carbon monoxide are will produce after bone coal spontaneous combustion, in order to reduce ring Border is polluted, preferably, the clean unit includes the combustion chamber being connected with the thermal energy recovery tube, is set on the combustion chamber It is useful for the exhaust pipe of the tail gas discharge after burning.The gas such as carbon monoxide are removed into the exhaust combustion in combustion chamber 31 Body.
It will produce a large amount of heat when combustion chambers burn, in order to make full use of the thermal energy of generation, reduce disappearing for the energy Consumption, preferably, the thermal energy recovery tube between first heat exchange unit and the second heat exchange unit is equipped with and combustion chamber The heat circulation pipe that is connected of exhaust pipe.
Preferably, the clean unit further includes the absorption cell equipped with the solution that can dissolve sulfur dioxide gas, it is described The exhaust end of exhaust pipe extends in absorption cell, and the top of the absorption cell is equipped with exhaust outlet.It can be absorbed by absorption cell 32 Remove the sulfur dioxide in tail gas.
The present invention can be as needed, and control tail gas enters the air inflow in absorption cell, is conveniently adjusted decontamination process, Preferably, being equipped with the pipe-expanding machine for adjusting exhaust pipe exhaust end port caliber size at exhaust pipe exhaust end port Structure.
Preferably, the flaring mechanism includes:
The connecting tube being set in exhaust pipe, the connecting tube include with the linkage section that is fixedly connected of exhaust inside pipe wall and The flared section hingedly coordinated with linkage section;
Sliding is set in the sliding sleeve of flared section outer wall;
Driving mechanism in axial sliding is carried out in the flared section for driving to slide over;
It is set to the annular resetting spring of flared section inner wall.
The present invention can drive sliding sleeve sliding, meeting compression flare section when sliding sleeve slides so that flared section by driving mechanism Bore change, to realize adjusting to exhaust pipe exhaust end bore, so adjust tail gas enter in absorption cell into Tolerance is conducive to the absorption of sulfur dioxide to regulate and control purification process.
Preferably, the annular resetting spring is multiple to be axially arranged along flared section.Annular resets in the present invention The quantity of spring is arranged, and can play the position-limiting action for regulating and controlling size to flared section bore, therefore the present invention can be as needed The quantity of annular resetting spring is set.
Preferably, the driving mechanism is motor, the motor shaft of the motor is fixedly connected with the sliding sleeve.
Preferably, the motor is stepper motor.
Compared with prior art, beneficial effects of the present invention are embodied in:
The smog tail gas that bone coal spontaneous combustion generates can be carried out heat exchange recycling, and meeting after bone coal spontaneous combustion by the present invention The pernicious gases such as a large amount of sulfur dioxide, carbon dioxide, carbon monoxide are generated, cause environmental pollution in order to prevent, the present invention is also Purified treatment has been carried out to tail gas, has passed through clean unit purified treatment.Therefore the present invention not only makes full use of bone coal spontaneous combustion to generate Smog exhaust heat-energy, can also to tail gas carry out purified treatment, substantially increase the utilization rate of resource.
Description of the drawings
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the process flow chart of exhaust-gas treatment of the present invention.
Fig. 3 is the structural schematic diagram of the second heat exchange unit in the present invention.
Fig. 4 is the structural schematic diagram of flaring mechanism in the present invention.
Specific implementation mode
As depicted in figs. 1 and 2, the present invention includes:Collect the thermal energy recovery tube 1 for the tail gas that stone coal combustion generates;It can be with heat Energy recovery tube carries out the heat exchange unit 2 of heat exchange;Tail gas for being generated to stone coal combustion carries out the purification list of purified treatment Member 3.The smog tail gas that bone coal spontaneous combustion generates enters in thermal energy recovery tube 1, and smog tail gas and the thermal energy recovery tube 1 of high heat occur Heat exchange, then heat exchange is occurred by thermal energy recovery tube 1 and heat exchange unit 2, heat exchange unit 2 is transferred heat to, then lead to Cross the utilization that heat exchange unit 2 carries out thermal energy.It will produce a large amount of sulfur dioxide, carbon dioxide, carbon monoxide after bone coal spontaneous combustion Equal pernicious gases, cause environmental pollution, the present invention also to carry out purified treatment to tail gas, are purified by clean unit in order to prevent Processing.
As shown in FIG. 1 to 3, in the present invention there are many structure types of heat exchange unit, heat exchange unit 2 includes first Heat exchange unit 21 and the second heat exchange unit 22, the first heat exchange unit 21 include the heat friendship that inside is connected with heat exchange medium Pipe 211 is changed, heat-exchange tube 211 is wound in 1 outer wall of thermal energy recovery tube.With thermal energy recovery tube 1 heat exchange occurs for heat-exchange tube 211, Then heat-exchange tube 211 is that the heat exchange medium being located in heat-exchange tube 211 carries out heat exchange, preferably, the heat is handed over It is water to change medium.Second heat exchange unit 22 includes the heat exchange jacket 221 being set in outside thermal energy recovery tube 1, heat exchange jacket 221 The gas compartment 222 being passed through for air is formed between 1 outer wall of inner wall and thermal energy recovery tube, the side of heat exchange jacket 221 offers confession Air enters the air inlet 223 inside heat exchange jacket 221, and the side opposite with air inlet 223 offers the row being discharged for air Gas port 224,221 inner wall of heat exchange jacket are equipped with heat-exchange fin 225.
As shown in FIG. 1 to 3, external air enters from air inlet 223 in gas compartment 222, passes through heat-exchange fin 225 So that with air heat exchange occurs for the heat in thermal energy recovery tube 1, the air for carrying out heat exchange is discharged from exhaust outlet 224 again.
As depicted in figs. 1 and 2, it is harmful that a large amount of sulfur dioxide, carbon dioxide, carbon monoxide etc. are will produce after bone coal spontaneous combustion Gas, in order to reduce environmental pollution, clean unit 3 includes the combustion chamber 31 being connected with the thermal energy recovery tube 1, is fired on room 31 Equipped with the exhaust pipe 311 for the tail gas discharge after burning.Carbon monoxide is removed into the exhaust combustion in combustion chamber 31 Equal gases.
Combustion chamber 31 will produce a large amount of heat when burning, and in order to make full use of the thermal energy of generation, reduce the energy Consumption, the thermal energy recovery tube 1 between the first heat exchange unit 21 and the second heat exchange unit 22 are equipped with the row with combustion chamber 31 The heat circulation pipe that tracheae 311 is connected.Clean unit 3 further includes the absorption cell equipped with the solution that can dissolve sulfur dioxide gas 32, the exhaust end of exhaust pipe 311 extends in absorption cell 32, and the top of absorption cell 32 is equipped with exhaust outlet 321.Pass through absorption cell 32 The sulfur dioxide removed in tail gas can be absorbed.
As shown in figure 4, the present invention can be as needed, control tail gas enters the air inflow in absorption cell, is conveniently adjusted net Change processing procedure, the flaring for adjusting 311 exhaust end port caliber size of exhaust pipe is equipped at 311 exhaust end port of exhaust pipe Mechanism 4.Flaring mechanism 4 includes:The connecting tube 41 being set in exhaust pipe 311, connecting tube 41 include solid with 311 inner wall of exhaust pipe Surely the linkage section 411 connected and the flared section 412 hingedly coordinated with linkage section 411;Sliding is set in 412 outer wall of flared section Sliding sleeve 42;For driving sliding sleeve 42 to carry out driving mechanism (being not drawn into attached drawing) in axial sliding in the flared section 412;If It is placed in the annular resetting spring 44 of 412 inner wall of flared section.
As shown in figure 4, the present invention can drive sliding sleeve 42 to slide by driving mechanism, it can compression flare section when sliding sleeve slides 412 so that the bore of flared section 412 changes, and to realize the adjusting to 311 exhaust end bore of exhaust pipe, and then adjusts Tail gas enters the air inflow in absorption cell, to regulate and control purification process, is conducive to the absorption of sulfur dioxide.Annular resetting spring 44 is Axially it is arranged along flared section 412 multiple.The quantity setting of annular resetting spring, can play to flared section mouth in the present invention Diameter regulates and controls the position-limiting action of size, therefore the present invention can be arranged as required to the quantity of annular resetting spring 44.In the present invention Driving mechanism is motor, and the motor shaft of motor is fixedly connected with sliding sleeve 42.Motor is stepper motor.

Claims (7)

1. a kind of bone coal spontaneous combustion ore body thermal energy comprehensive recovery system, which is characterized in that including:
Collect the thermal energy recovery tube (1) for the tail gas that stone coal combustion generates;
The heat exchange unit (2) of heat exchange can be carried out with thermal energy recovery tube;
Tail gas for being generated to stone coal combustion carries out the clean unit (3) of purified treatment;
The clean unit (3) includes the combustion chamber (31) being connected with the thermal energy recovery tube (1), on the combustion chamber (31) Equipped with the exhaust pipe (311) for the tail gas discharge after burning, it is equipped with and is used at exhaust pipe (311) the exhaust end port The flaring mechanism (4) of exhaust pipe (311) exhaust end port caliber size is adjusted, the flaring mechanism (4) includes:
The connecting tube (41) being set in exhaust pipe (311), the connecting tube (41) include fixing to connect with exhaust pipe (311) inner wall The linkage section (411) connect and the flared section (412) hingedly coordinated with linkage section (411);
Sliding is set in the sliding sleeve (42) of flared section (412) outer wall;
For driving sliding sleeve (42) to carry out driving mechanism in axial sliding in the flared section (412);
It is set to the annular resetting spring (44) of flared section (412) inner wall.
2. a kind of bone coal spontaneous combustion ore body thermal energy comprehensive recovery system as described in claim 1, which is characterized in that the heat exchange Unit (2) includes the first heat exchange unit (21) and the second heat exchange unit (22), the first heat exchange unit (21) packet The internal heat-exchange tube (211) for being connected with heat exchange medium is included, the heat-exchange tube (211) is wound in thermal energy recovery tube (1) outer wall.
3. a kind of bone coal spontaneous combustion ore body thermal energy comprehensive recovery system as claimed in claim 2, which is characterized in that second heat Crosspoint (22) includes being set in the external heat exchange jacket (221) of thermal energy recovery tube (1), heat exchange jacket (221) inner wall The gas compartment (222) being passed through for air is formed between thermal energy recovery tube (1) outer wall, the side of the heat exchange jacket (221) is opened Equipped with the internal air inlet (223) of heat exchange jacket (221) is entered for air, opposite side offers confession with air inlet (223) The exhaust outlet (224) of air discharge, heat exchange jacket (221) inner wall are equipped with heat-exchange fin (225).
4. a kind of bone coal spontaneous combustion ore body thermal energy comprehensive recovery system as claimed in claim 2, which is characterized in that first heat Thermal energy recovery tube (1) between crosspoint (21) and the second heat exchange unit (22) is equipped with the exhaust pipe with combustion chamber (31) (311) the heat circulation pipe being connected.
5. a kind of bone coal spontaneous combustion ore body thermal energy comprehensive recovery system as described in claim 1, which is characterized in that the purification is single First (3) further include the absorption cell (32) equipped with the solution that can dissolve sulfur dioxide gas, and the exhaust end of the exhaust pipe (311) prolongs It extends in absorption cell (32), the top of the absorption cell (32) is equipped with exhaust outlet (321).
6. a kind of bone coal spontaneous combustion ore body thermal energy comprehensive recovery system as described in claim 1, which is characterized in that the annular is multiple Position spring (44) is multiple to be axially arranged along flared section (412).
7. a kind of bone coal spontaneous combustion ore body thermal energy comprehensive recovery system as claimed in claim 6, which is characterized in that the driving machine Structure is motor, and the motor shaft of the motor is fixedly connected with the sliding sleeve (42).
CN201710038379.9A 2017-01-18 2017-01-18 A kind of bone coal spontaneous combustion ore body thermal energy comprehensive recovery system Active CN106678857B (en)

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CN107118785B (en) * 2017-04-21 2019-08-16 太原理工大学 The self-heating of low-order coal-spontaneous combustion process energy utilization method

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EP1346759A3 (en) * 1998-02-23 2004-08-04 Mitsubishi Heavy Industries, Ltd. Flue gas treating process
CN2849579Y (en) * 2005-08-24 2006-12-20 孙启明 Waste gas waste heat recoverer for gas water heater
DE102007011640A1 (en) * 2007-03-09 2008-09-11 Esterka, Elke Plant for recovering heat energy and cleaning flue gases from firing systems
CN102309919B (en) * 2010-07-07 2014-04-16 中国石油化工股份有限公司 Combined treatment method for waste gas containing sulfur compounds
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CN204756975U (en) * 2015-05-25 2015-11-11 福建鸿丰纳米科技有限公司 Nano calcium carbonate production is with tail gas waste heat utilization equipment of hot -blast furnace
CN205331505U (en) * 2016-01-13 2016-06-22 卢璐 Novel hot -and -cold water mixer
CN206488298U (en) * 2017-01-18 2017-09-12 杭州火焰山温泉度假有限公司 Bone coal spontaneous combustion ore body heat energy comprehensive recovery system

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