CN206683421U - A kind of hot blast dynamical type is granulated metallurgical liquid slag residual neat recovering system - Google Patents
A kind of hot blast dynamical type is granulated metallurgical liquid slag residual neat recovering system Download PDFInfo
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- CN206683421U CN206683421U CN201720406217.1U CN201720406217U CN206683421U CN 206683421 U CN206683421 U CN 206683421U CN 201720406217 U CN201720406217 U CN 201720406217U CN 206683421 U CN206683421 U CN 206683421U
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- 239000007788 liquid Substances 0.000 title claims abstract description 51
- 239000002893 slag Substances 0.000 title claims abstract description 44
- 230000005540 biological transmission Effects 0.000 claims abstract description 25
- 230000009466 transformation Effects 0.000 claims abstract description 14
- 238000003860 storage Methods 0.000 claims description 11
- 230000008676 import Effects 0.000 claims description 7
- 230000005484 gravity Effects 0.000 claims description 2
- 239000007789 gas Substances 0.000 abstract description 52
- 238000011084 recovery Methods 0.000 abstract description 12
- 239000002918 waste heat Substances 0.000 abstract description 11
- 238000011161 development Methods 0.000 abstract description 7
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 238000013461 design Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 12
- 239000002245 particle Substances 0.000 description 10
- 239000007787 solid Substances 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000011229 interlayer Substances 0.000 description 4
- 239000010865 sewage Substances 0.000 description 4
- 239000010802 sludge Substances 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000003507 refrigerant Substances 0.000 description 3
- 238000007711 solidification Methods 0.000 description 3
- 230000008023 solidification Effects 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005272 metallurgy Methods 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000010977 jade Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000010310 metallurgical process Methods 0.000 description 1
- 238000009856 non-ferrous metallurgy Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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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
- Y02P10/20—Recycling
-
- 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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Abstract
It the utility model is related to a kind of hot blast dynamical type and be granulated metallurgical liquid slag residual neat recovering system, including lime-ash heat exchange pond, lime-ash phase transformation bed and heat transmission equipment, lime-ash heat exchange is provided with heat exchanger tube in pond, lime-ash phase transformation bed includes seal cavity, internal-mixing nozzle is provided with the top of seal cavity, the mixing chamber of internal-mixing nozzle respectively with lime-ash exchange heat pond, heat exchanger tube connects, the bottom of seal cavity has the first cold air inlet and the first slag-drip opening, the top of seal cavity also has the first heat outlet, one end of heat transmission equipment is hot gas inlet, the other end is cold air outlet, hot gas inlet is connected with separator, separator is connected with the first heat outlet, cold air outlet connects the first high pressure positive blower, first high pressure positive blower connects the second high pressure positive blower and the first cold air inlet respectively, second high pressure positive blower connects heat exchanger tube.The utility model advantage is ingenious in design, and cost is low, waste heat recovery efficiency high, energy-conserving and environment-protective, advantageously reduces smelter energy consumption, promotes smelter sustainable development.
Description
Technical field
It the utility model is related to a kind of hot blast dynamical type and be granulated metallurgical liquid slag residual neat recovering system, belong to high-temperature material and return
Receipts utilize technical field.
Background technology
The energy is the important substance basis that the mankind depend on for existence and development, and the height of energy use efficiency turns into a portion
Door, an industry or even the important symbol of a National Technical progress.With China's economy fast development and population it is continuous
Increase, the contradiction of energy relative deficiency has become increasingly conspicuous, and seeks the new energy or regenerative resource, and rational comprehensive profit
It is the key point how China will ensure sustainable economic development from now on the existing valuable energy.In recent years, China's metallurgy work
Industry achieves the fast development to attract people's attention, and wherein output of steel ranks first in the world for years.Metallurgical industry is as money
Source, energy-intensive industries, it is big power consumer.Wherein steel industry energy consumption accounts for 16% or so of national energy input, but ton steel is comparable
Observable index advanced country is high by 20% or so.Energy problem has become the main restriction of China's metallurgical industry sustainable health development
One of bottleneck.
The utilization of secondary energy sources have caused people greatly to pay close attention to.The many countries of Abroad in Recent Years are to more than metallurgical slag
Recuperation of heat achieves certain achievement using substantial amounts of research work has been done.The main technique of metallurgical slag processing at present has：Grain
Change method, wind quenching method, tubular type cooling method and Merotec methods.Although the above method can solve some problems, each have their own to lack
Point.Shotting is to use a kind of equipment for granulation of slag that the FOX factory of plum one is on probation in French rope earliest, and critical piece is one straight
Footpath is 90 millimeters, long 1800 millimeters fluted roller, and rotating speed is about 300 revs/min, and its general principle is by the liquid of 1450 DEG C of temperature
Body clinker flows to a water cooling water spray platform, to carry out primary crushing, then bits is thrown in atmosphere and are granulated glomeration, grain
Degree is distributed as 0.3~15 millimeter, then accelerates to cool down with atomized water（The cooling capacity of every equipment is 100 ton hours）, then
The energy of slag particle is reclaimed with the higher thermal efficiency with Bed heat exchanger.What the equipment for handling 60 tons of clinkers per hour was made
Primary Study shows that this device can produce 7500 kilograms of the hot-air of 500~600 DEG C of temperature per hour.Therefore, this stage
The gross efficiency of recovery is 25~30%.These heat can be used for steam generating or pre- hot product.However, shotting waste heat recovery is imitated
Rate is low, can waste substantial amounts of water, and large amount of sewage, the sludge of formation are difficult to handle.
Wind quenching method is by NKK and Mitsubishi joint invention.This method uses in Fushan factory, at the moon
Reason amount is 10000 tons or so, and its liquid slag temperature is l500~1600 DEG C.Air blower uses a kind of special in the equipment of this method
Nozzle, liquid molten slag is fractured into particle of the diameter less than 3 millimeters and cooled and solidified quickly after F.D, after solidification
Slag particle temperature still have 1200~1300 DEG C, it is used for boiler, makes heat transfer to boiler water tube.This equipment can reclaim
40% waste heat, can produce 200 tons of steams daily, and the equipment also can be used for recovery waste heat in nonferrous metallurgy blast furnace and converter.So
Then, air blower nozzle easily blocks, it is difficult to clears up, and waste heat recovery efficiency is low.
Tubular type cooling method is the method that Nippon Steel's fine jade iron studies application.The flow of this method is that clinker is injected into tubular type
In 90 × 500 millimeters of cooler φ (150 millimeters of external diameter φ) pipe, the heat transfer of clinker to pipe outside cooling water, obtain 25
Kilogram/cm2The steam of pressure, the cover plate below pipe is opened, the bits of solidification can be discharged, as long as and being processed in pipe good
It is good, 30% gradient is kept, also solidified slag can smoothly be discharged even if 3.2 meters of long pipes.But, lime-ash is easily adhered
On tube wall, it is difficult to clear up, waste heat recovery efficiency is low.
Merotec methods are that Sweden have studied a kind of new method of Merotec techniques recovery blast furnace slag heat, and this method is handle
1350 DEG C of liquid slag and circulation slag enter pelletizer through destroyer, and then to cooler, the slag temperature into cooler is 700~
800 DEG C, air or water are passed to using pipeline in cooler, to obtain 500 DEG C of hot-air or 250 DEG C, 210ata water
Steam, the slag particle after heat exchange enter separator through cooler, will be greater than 3 millimeters of slag particle and are used for building materials, less than 3 millimeters be used as
Circulate slag.Blast furnace slag heat is such as used for dry purpose, its effect is reachable by the efficiency of technique recovery slag heat up to 60~75%
80%.But this method is complex, cost of investment is high.
In recent years, numerous studies work has been made in recycling of many countries to metallurgical slag waste heat.Metallurgical production process
In put into the substantial amounts of energy, primarily to pyroreaction and the bar of deformation are created and maintained in the production of metal product
Part, most of energy are changed into secondary energy sources and largely discharged.Secondary energy sources in effective recycling metallurgical process, it is metallurgical
Enterprise reduces the important channel of energy consumption.Wherein, caused high-temperature ash has huge energy in metallurgy, and how effective waste heat returns
The energy in lime-ash is received, is the key for reducing smelter observable index.Existing high-temperature ash heat recovery technology uses mostly
Cooling water is cooled down, and not only wastes substantial amounts of water resource, also forms the reluctant material such as substantial amounts of sewage, sludge,
And technological process is grown, high energy consumption, environmental pollution is serious.
Utility model content
The purpose of this utility model is：For above-mentioned the shortcomings of the prior art, a kind of hot blast dynamical type grain is proposed
Change metallurgical liquid slag residual neat recovering system, premixed using hot gas and liquid lime-ash, it is smaller, evenly that particle diameter can not only be obtained
Liquid slag, guide functions are also acted as, while avoid the water resource caused by water cooling liquid slag from largely wasting and be difficult to handle
Sewage, sludge produce, realize the high efficiente callback of metallurgical liquid slag waste heat recovery.
In order to reach object above, the technical solution of the utility model is as follows：A kind of hot blast dynamical type is granulated metallurgical liquid
Slag residual neat recovering system, including lime-ash heat exchange pond, lime-ash phase transformation bed and heat transmission equipment, lime-ash heat exchange are provided with heat exchanger tube in pond,
Lime-ash heat exchange is mounted with liquid lime-ash in pond；Lime-ash phase transformation bed includes seal cavity, and internal-mixing is provided with the top of seal cavity
Nozzle, internal-mixing nozzle have mixing chamber, and mixing chamber is connected with lime-ash heat exchange pond, heat exchanger tube by the road respectively, seal cavity
Bottom has the first cold air inlet and the first slag-drip opening, and the top of seal cavity also has the first heat outlet；Heat transmission equipment
One end is hot gas inlet, and the other end is cold air outlet, and hot gas inlet is connected by the gas outlet of pipeline and separator, separator
Air inlet is connected by pipeline with the first heat outlet, and cold air outlet connects the first high pressure positive blower, the first high pressure positive blower by the road
Connect the second high pressure positive blower and the first cold air inlet by the road respectively, the second high pressure positive blower connects heat exchanger tube by the road.
The utility model uses internal-mixing nozzle, and liquid lime-ash enters the hot gas with being preheated through high pressure after the mixing chamber of nozzle
Body（Gas of the gas after heat transmission equipment waste heat recovery）Mixed, hot high pressure gas has transport to liquid lime-ash and led
Stream act on, and make liquid ash slag particle footpath become evenly, it is smaller, liquid lime-ash passes through collision rift in mixing chamber, is arranged by nozzle
Go out, into lime-ash phase transformation bed, and exchanged heat in lime-ash phase transformation bed with the cold air blasted, cold air is by the heat band of lime-ash
Go out, heated gas is recycled by heat transmission equipment again, and liquid lime-ash is frozen into solid ash and arranged by the first slag-drip opening
Go out.
The structure that the utility model further refines is as follows：
Further, heat exchanger tube has the second cold air inlet and the second heat outlet, and the second cold air inlet connects through pipeline
Second high pressure positive blower, the second heat outlet connect through the mixing chamber of pipeline and internal-mixing nozzle.
Liquid lime-ash is premixed using the hot gas of heat exchanger tube conveying in said structure, passed through in internal-mixing nozzle
High temperature and high pressure gas drive liquid lime-ash to be flowed radially outward along nozzle, and liquid lime-ash is collided by high temperature and high pressure gas, crush simultaneously
It is atomized into droplet.The utility model can obtain the ash of different-grain diameter by changing the flow-rate ratio of high-temperature gas and liquid lime-ash
Slag, make grey solid impurity particle more uniformly, particle diameter it is smaller, and then make the heat exchange of liquid lime-ash and cold air more thorough.It is further, since hot
The temperature of gas is more than the fusing point of liquid lime-ash, causes the lime-ash in nozzle to keep liquid, will not block.
Further, it is additionally provided with gas-to-gas heat exchanger between the second cold air inlet and the second high pressure positive blower of heat exchanger tube, gas-
Gas heat exchanger includes the heat-exchanging tube bundle of housing and setting in the housing, and one end import of housing connects with the second high pressure positive blower by the road
Connect, other end outlet is connected with heat exchanger tube by the road.
Further, the air inlet of heat-exchanging tube bundle is located at the pipeline behind separator gas outlet, air inlet by air inlet pipe connection
Pipe is provided with first flow control valve, and the gas outlet of heat-exchanging tube bundle is located at the pipe before heat transmission equipment hot gas inlet by escape pipe connection
Road, escape pipe are provided with the 3rd high pressure positive blower.
It is to be preheated to cold air that gas-gas heat exchanger tube is used in said structure, prevents from entering lime-ash heat exchange pond
Cold air temperature is too low, causes liquid lime-ash to be solidified in lime-ash exchanges heat pond.
Further, the pipeline between the first high pressure positive blower and the second high pressure positive blower is provided with second flow control valve.
First flow control valve is used for the amount for being adjusted into the hot gas of gas-to-gas heat exchanger, into the heat of gas-to-gas heat exchanger
The amount of gas is a small amount of, the cold air before entering heat exchanger tube is preheated using a small amount of hot gas, a small amount of gas after preheating
Return in the pipeline after being located at separator, because gas flow is less, do not interfere with the use of heat transmission equipment below.Second flow control
Valve processed is used for the amount for being adjusted into the cold air of heat exchanger tube, and then adjusts the flow-rate ratio of hot high pressure gas and liquid lime-ash below.
Further, the heat exchanger tube is coiled heat exchanger tube.
Further, the bottom of separator has the second slag-drip opening.
Further, lime-ash heat exchange pond connects through pipeline with lime-ash storage pool, and the lime-ash storage pool is built with liquid ash
Slag, there is lime-ash import at the top of lime-ash storage pool.
Further, heat transmission equipment has heat exchanging interlayer, and heat exchanging interlayer has refrigerant inlet and heating agent outlet, hot and cold matchmaker
For water.Heat transmission equipment is gas preheater, swinging gas-to-gas heat exchanger, finned tube exchanger, light pipe heat exchanger, heat pipe heat exchanging
One or more in device, coil heat exchanger, plate type heat exchanger.
Further, separator is the one or more in gravity separator, inertia separator, cyclone separator.
The utility model has the advantages that ingenious in design, technique is simple, and cost is low, waste heat recovery efficiency high, and energy-saving ring
Protect, avoid producing substantial amounts of sewage, sludge, advantageously reduce the energy consumption of smelter, promote smelter sustainable development, tool
There are good reference and promotional value.
Brief description of the drawings
The utility model will be further described below in conjunction with the accompanying drawings.
Fig. 1 is the structural representation of the utility model one embodiment.
Embodiment
A kind of hot blast dynamical type of the present embodiment is granulated metallurgical liquid slag residual neat recovering system, and its structure is as shown in figure 1, bag
Lime-ash heat exchange pond 4, lime-ash phase transformation bed 9 and heat transmission equipment 13 are included, lime-ash heat exchange pond 4 connects through pipeline with lime-ash storage pool 2, lime-ash
Storage pool 2 has lime-ash import 1, lime-ash storage pool 2, lime-ash heat exchange at the top of lime-ash storage pool 2 built with liquid lime-ash 3
Pond 4 is the cylindrical shape or other shapes of sealing.Heat exchanger tube 5 is provided with lime-ash heat exchange pond 4, lime-ash heat exchange is also arranged in pond 4
There is liquid lime-ash 3, heat exchanger tube 5 has the second cold air inlet and the second heat outlet, and the second cold air inlet connects second through pipeline
High pressure positive blower 10, the second heat outlet are connected through pipeline with the mixing chamber of internal-mixing nozzle 6.Lime-ash phase transformation bed 9 includes annular seal space
Body, is provided with internal-mixing nozzle 6 at the top of seal cavity, and internal-mixing nozzle 6 has a mixing chamber, mixing chamber by catheter 15 with
The lime-ash heat exchange inner chamber of pond 4 connection, catheter 15 are provided with the 3rd flow control valve, at the same mixing chamber also by the road with heat exchanger tube 5
Second heat outlet connects, and the bottom of seal cavity has the first cold air inlet 7 and the first slag-drip opening 8, the top of seal cavity
Also there is the first heat outlet.One end of heat transmission equipment 13 is hot gas inlet, and the other end is cold air outlet, the heat of heat transmission equipment 13
Gas entrance is connected by pipeline with the gas outlet of separator 11, and the air inlet of separator 11 is connected by pipeline and the first heat outlet
Connect, the cold air outlet of heat transmission equipment 13 connects the first high pressure positive blower 18 by the road, and the first high pressure positive blower 18 connects by the road respectively
Second high pressure positive blower 10 and the first cold air inlet 7, pipeline between the first high pressure positive blower 18 and the second high pressure positive blower 10 are provided with the
Two flow control valves 19, the second high pressure positive blower 10 connect the second cold air inlet of heat exchanger tube 5 by the road.Heat transmission equipment 13 also has
Heat exchanging interlayer, heat exchanging interlayer have refrigerant inlet and heating agent outlet, and hot and cold matchmaker is water.Pipeline（Pipeline）On be equipped with valve.
In addition, gas-to-gas heat exchanger 14 is additionally provided between the second cold air inlet of heat exchanger tube 5 and the second high pressure positive blower 10, gas-
Gas heat exchanger 14 includes housing and sets heat-exchanging tube bundle in the housing, one end import of housing by the road with the second high pressure positive blower
10 connections, other end outlet are connected with the second cold air inlet of heat exchanger tube 5 by the road.The air inlet of heat-exchanging tube bundle passes through air inlet pipe
Connection is located at the pipeline behind the gas outlet of separator 11, and air inlet pipe is provided with first flow control valve 17, and the gas outlet of heat-exchanging tube bundle leads to
Cross escape pipe connection and be located at the pipeline before the hot gas inlet of heat transmission equipment 13, escape pipe is provided with the 3rd high pressure positive blower 16.First high pressure
Blower fan 18, the second high pressure positive blower 10, the 3rd high pressure positive blower 16 are air-introduced machine.
Heat exchanger tube 5 is coiled heat exchanger tube.The bottom of separator 11 has the second slag-drip opening 12.Separator 11 can attach most importance to
One or more combination in power separator, inertia separator, cyclone separator.
Heat transmission equipment 13 is gas preheater, swinging gas-to-gas heat exchanger, finned tube exchanger, light pipe heat exchanger, heat pipe
One or more combination in heat exchanger, coil heat exchanger, plate type heat exchanger.Heat transmission equipment uses resistant to elevated temperatures material system of laying bricks
Make.
A kind of hot blast dynamical type of the present embodiment is granulated metallurgical liquid slag exhaust heat recovering method, comprises the following steps：
After the first step, lime-ash storage pool 2 are 1500~1600 DEG C of liquid lime-ash to the lime-ash heat exchange delivery temperature of pond 4, the
One high pressure positive blower 18, the second high pressure positive blower 10 start, and are that 150~300 DEG C of cold air is delivered to and is arranged at lime-ash and changes by temperature
Heat exchanger tube 5 in hot pond 4, cold air are exchanged heat in heat exchanger tube 5 with the liquid lime-ash in lime-ash heat exchange pond 4, obtain temperature
For 1300~1400 DEG C of hot high pressure gas.
Second step, 1500~1600 DEG C of liquid lime-ash enter the mixing chamber of internal-mixing nozzle 6 through catheter 15, exchange heat simultaneously
1300~1400 DEG C of hot high pressure gases afterwards also by pipeline to mixing chamber, hot high pressure gas have to liquid lime-ash conveying and
The effect of water conservancy diversion, the two mixing chamber is interior to obtain mixed ash after colliding, mixing, and mixed ash is through on internal-mixing nozzle 6
Spray orifice sprays.Catheter 15 and pipeline are provided with valve, and height is adjusted by second flow control valve 19, the 3rd flow control valve
The flow-rate ratio of hot gas and liquid lime-ash is pressed, and then obtains the lime-ash of different-grain diameter.
3rd step, the cold air that temperature is 150~300 DEG C are under the effect of the first high pressure positive blower 18 from the bottom of lime-ash phase transformation bed 9
Portion enters its seal cavity, and the inside of lime-ash phase transformation bed 9 keeps tiny structure, and cold air is first with being located at lime-ash phase transformation in seal cavity
The lime-ash of the solidification of 9 bottoms of bed is exchanged heat, then the mixed ash with being ejected by internal-mixing nozzle 6（1500~1600 DEG C）Enter
Row heat exchange, liquid lime-ash freezes into solid lime-ash of the particle diameter in 1mm or so after heat exchange（100~125 DEG C of temperature）, solid ash
Slag is discharged through the first slag-drip opening 8, and cold air is heated to form 800~1200 DEG C of hot gas；Go to the 4th step；
4th step, hot gas isolate the solid lime-ash of hot gas carrying after the discharge of lime-ash phase transformation bed 9 through separator 11,
The hot gas that separator 11 comes out, most of to be exchanged heat into heat transmission equipment 13, small part exchanges heat through air inlet pipe into gas-gas
Device 14 preheats to the cold air from the second high pressure positive blower 10, and hot gas exchanges heat to obtain temperature in heat transmission equipment 13 with refrigerant
The cold air for 150~300 DEG C is spent, cold air is discharged from the cold air outlet of heat transmission equipment 13, in drawing for the first high pressure positive blower 18
Lower most of import in lime-ash phase transformation bed 9 of wind effect is recycled, and fraction is led under the air inducing effect of the second high pressure positive blower 10
Enter heat exchanger tube 5 to recycle.
In addition to the implementation, the utility model can also have other embodiment.It is all to use equivalent substitution or equivalent change
The technical scheme to be formed is changed, all falls within the protection domain of the requires of the utility model.
Claims (10)
1. a kind of hot blast dynamical type is granulated metallurgical liquid slag residual neat recovering system, it is characterized in that, including lime-ash heat exchange pond（4）, ash
Slag phase becomes bed（9）And heat transmission equipment（13）, the lime-ash heat exchange pond（4）Inside it is provided with heat exchanger tube（5）, the lime-ash heat exchange pond
（4）Inside it is mounted with liquid lime-ash（3）；The lime-ash phase transformation bed（9）Including seal cavity, it is provided with the top of the seal cavity
Internal-mixing nozzle（6）, the internal-mixing nozzle（6）With mixing chamber, the mixing chamber distinguishes the pond that exchanged heat by the road with lime-ash
（4）, heat exchanger tube（5）Connection, the bottom of the seal cavity has the first cold air inlet（7）With the first slag-drip opening（8）, it is described close
The top of envelope cavity also has the first heat outlet；The heat transmission equipment（13）One end be hot gas inlet, the other end is cold air
Outlet, the hot gas inlet pass through pipeline and separator（11）Gas outlet connection, the separator（11）Air inlet pass through
Pipeline is connected with the first heat outlet, and the cold air outlet connects the first high pressure positive blower by the road（18）, first high-pressure blast
Machine（18）Connect the second high pressure positive blower by the road respectively（10）With the first cold air inlet（7）, second high pressure positive blower（10）Through
Pipeline connects heat exchanger tube（5）.
2. a kind of hot blast dynamical type is granulated metallurgical liquid slag residual neat recovering system according to claim 1, it is characterized in that, it is described
Heat exchanger tube（5）With the second cold air inlet and the second heat outlet, second cold air inlet connects the second high-pressure blast through pipeline
Machine（10）, second heat outlet is through pipeline and internal-mixing nozzle（6）Mixing chamber connection.
3. a kind of hot blast dynamical type is granulated metallurgical liquid slag residual neat recovering system according to claim 2, it is characterized in that, it is described
Heat exchanger tube（5）The second cold air inlet and the second high pressure positive blower（10）Between be additionally provided with gas-to-gas heat exchanger（14）, the gas-gas
Heat exchanger（14）Including housing and setting heat-exchanging tube bundle in the housing, one end import of the housing by the road with the second high pressure
Blower fan（10）Connection, the other end outlet by the road with heat exchanger tube（5）Connection.
4. a kind of hot blast dynamical type is granulated metallurgical liquid slag residual neat recovering system according to claim 3, it is characterized in that, it is described
The air inlet of heat-exchanging tube bundle is located at the pipeline behind separator gas outlet by air inlet pipe connection, and the air inlet pipe is provided with first flow
Control valve（17）, the gas outlet of the heat-exchanging tube bundle is located at the pipeline before heat transmission equipment hot gas inlet, institute by escape pipe connection
State escape pipe and be provided with the 3rd high pressure positive blower（16）.
5. a kind of hot blast dynamical type is granulated metallurgical liquid slag residual neat recovering system according to claim 4, it is characterized in that, it is described
First high pressure positive blower（18）With the second high pressure positive blower（10）Between pipeline be provided with second flow control valve（19）.
6. a kind of hot blast dynamical type is granulated metallurgical liquid slag residual neat recovering system according to claim 2, it is characterized in that, it is described
Heat exchanger tube is coiled heat exchanger tube.
7. a kind of hot blast dynamical type is granulated metallurgical liquid slag residual neat recovering system according to claim 1, it is characterized in that, it is described
Separator（11）Bottom there is the second slag-drip opening（12）.
8. a kind of hot blast dynamical type is granulated metallurgical liquid slag residual neat recovering system according to claim 1, it is characterized in that, it is described
Lime-ash heat exchange pond（4）Through pipeline and lime-ash storage pool（2）Connection, the lime-ash storage pool（2）Built with liquid lime-ash（3）,
The lime-ash storage pool（2）Top there is lime-ash import（1）.
9. a kind of hot blast dynamical type is granulated metallurgical liquid slag residual neat recovering system according to claim 1, it is characterized in that, it is described
Heat transmission equipment（13）For gas preheater, swinging gas-to-gas heat exchanger, finned tube exchanger, light pipe heat exchanger, heat pipe heat exchanging
One or more in device, coil heat exchanger, plate type heat exchanger.
10. a kind of hot blast dynamical type is granulated metallurgical liquid slag residual neat recovering system according to claim 1, it is characterized in that, institute
State separator（11）For the one or more in gravity separator, inertia separator, cyclone separator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720406217.1U CN206683421U (en) | 2017-04-18 | 2017-04-18 | A kind of hot blast dynamical type is granulated metallurgical liquid slag residual neat recovering system |
Applications Claiming Priority (1)
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| CN106989608A (en) * | 2017-04-18 | 2017-07-28 | 南京工业大学 | A kind of metallurgical liquid slag residual neat recovering system of hot blast dynamical type granulation and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106989608A (en) * | 2017-04-18 | 2017-07-28 | 南京工业大学 | A kind of metallurgical liquid slag residual neat recovering system of hot blast dynamical type granulation and method |
| CN106989608B (en) * | 2017-04-18 | 2023-04-28 | 南京工业大学 | Hot air power type granulating metallurgical liquid slag waste heat recovery system and method |
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