CN104946828B - Blast furnace slag flushing water waste heat recovery device and waste heat recovery system - Google Patents
Blast furnace slag flushing water waste heat recovery device and waste heat recovery system Download PDFInfo
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- CN104946828B CN104946828B CN201510392053.7A CN201510392053A CN104946828B CN 104946828 B CN104946828 B CN 104946828B CN 201510392053 A CN201510392053 A CN 201510392053A CN 104946828 B CN104946828 B CN 104946828B
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- heat recovery
- blast furnace
- furnace slag
- recovery device
- heat
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 101
- 239000002893 slag Substances 0.000 title claims abstract description 95
- 238000011010 flushing procedure Methods 0.000 title claims abstract description 52
- 238000011084 recovery Methods 0.000 title claims abstract description 51
- 239000002918 waste heat Substances 0.000 title claims abstract description 51
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 11
- 238000010791 quenching Methods 0.000 claims description 41
- 230000000171 quenching effect Effects 0.000 claims description 41
- 239000003818 cinder Substances 0.000 claims description 32
- 238000005406 washing Methods 0.000 claims description 29
- 238000001914 filtration Methods 0.000 claims description 23
- 238000003860 storage Methods 0.000 claims description 16
- 238000005265 energy consumption Methods 0.000 claims description 15
- 239000002245 particle Substances 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 9
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical group [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 claims description 8
- 238000009628 steelmaking Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 13
- 239000004576 sand Substances 0.000 description 20
- 239000011435 rock Substances 0.000 description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 239000012530 fluid Substances 0.000 description 7
- 239000004575 stone Substances 0.000 description 7
- 238000004140 cleaning Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000004080 punching Methods 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 206010021036 Hyponatraemia Diseases 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 229910052571 earthenware Inorganic materials 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000005439 thermosphere Substances 0.000 description 1
Classifications
-
- 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
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention aims to provide a waste heat recovery device for blast furnace slag flushing water, which is used for solving the technical problem that the waste heat recovery ratio of the existing slag flushing water is low. The method comprises the following steps: the slag flushing tank comprises an inlet and an outlet, at least two filter layers are sequentially arranged between the inlet and the outlet in the slag flushing tank from upstream to downstream along the flow direction of slag flushing water; the filter also comprises at least two groups of heat exchangers which are arranged in different filter layers and used for exchanging heat with the slag flushing water flowing through the different filter layers. Through setting up multistage filter layer and multistage heat exchanger, can carry out waste heat recovery to the sluicing water of different temperatures, fully improve waste heat utilization. The invention also provides a waste heat recovery system adopting the blast furnace slag flushing water waste heat recovery device.
Description
Technical field
The present invention relates to industrial afterheat recovery field, and in particular to a kind of blast furnace slag quenching water waste-heat recovery device, further relates to
A kind of waste heat recovery system of blast furnace slag quenching water.
Background technology
Current blast furnace slag quenching water waste heat heat exchange mode is usually that washing slag water is directly entered heat exchanger or in flushing cinder pond
The modes such as pipe-polishing heat exchanger are set.Because blast furnace slag quenching water has stronger corrosivity, and easily fouling, so being directly entered
The mode of heat exchanger is higher to the performance requirement of equipment, not easy care；And consider in washing slag water the bottom of through after method enters storage cistern and set
The method of pipe-polishing heat exchanger, recovery heat ratio is smaller and recuperation of heat temperature is relatively low, fails fully to reclaim the Gao Pin in flushing cinder pond
Position heat.
The content of the invention
In view of this, present invention offer is a kind of can carry the waste-heat recovery device of blast furnace slag quenching water heat recovery rate.
For up to this purpose, the present invention uses following technical scheme：
The blast furnace slag quenching water waste-heat recovery device of the present invention, including flushing cinder pond, the flushing cinder pond are included an inlet and an outlet,
It is located in the flushing cinder pond between the entrance and exit, has been sequentially arranged at least along washing slag water flow direction from upstream to downstream
Two filter layers；Also include at least two groups heat exchangers, the heat exchanger is arranged in different filter layers, for flowing through difference
The washing slag water of filter layer carries out heat exchange.
It is preferred that, in foregoing blast furnace slag quenching water waste-heat recovery device, at least two filter layers have different chis
Very little filtering particle.
It is preferred that, in the foregoing blast furnace slag quenching water waste-heat recovery device, positioned at the filtering particle of the filter layer of upstream
Size is more than the size of the filtering particle of the filter layer positioned at downstream.
It is preferred that, in foregoing blast furnace slag quenching water waste-heat recovery device, every layer of filter layer is provided with the heat exchanger.
It is preferred that, in foregoing blast furnace slag quenching water waste-heat recovery device, the heat exchanger be arranged in filter layer and/or
It is arranged on the downstream of filter layer.
It is preferred that, in foregoing blast furnace slag quenching water waste-heat recovery device, the flushing cinder water inlet is arranged on flushing cinder pond
Top, the filter layer is arranged along the vertical direction in flushing cinder pond.
It is preferred that, in foregoing blast furnace slag quenching water waste-heat recovery device, in addition at least two grids, the filter layer
It is separately positioned on grid.
It is preferred that, in foregoing blast furnace slag quenching water waste-heat recovery device, in addition to air flushing device, for filtering
Layer, heat exchanger and/or grid are backwashed.
It is preferred that, in foregoing blast furnace slag quenching water waste-heat recovery device, in addition to storage cistern, the storage cistern with it is described
Outlet is connected.
It is preferred that, in foregoing blast furnace slag quenching water waste-heat recovery device, the flushing cinder pond is provided with to be connected with the storage cistern
Logical overfall.
It is a further object of the present invention to provide a kind of preheating that can reclaim washing slag water and for different demands energy consumption equipment
The waste heat recovery system of blast furnace slag quenching water of energy is provided.
For up to this purpose, the present invention uses following technical scheme：
A kind of waste heat recovery system of blast furnace slag quenching water, including energy consumption equipment, in addition to foregoing blast furnace slag quenching water waste heat are returned
Receiving apparatus, the heat exchanger of the blast furnace slag quenching water waste-heat recovery device exports the heat transferring medium of different temperatures, the different temperatures
Heat transferring medium be used for provide energy for energy consumption equipment.
It is preferred that, in foregoing waste heat recovery system of blast furnace slag quenching water, the energy consumption equipment includes heating equipment, economic benefits and social benefits
Lithium bromide chiller, mono-potency lithium bromide unit and/or steel making equipment.
The beneficial effects of the invention are as follows：
1st, tradition throws pipe heat exchanger and is only capable of reclaiming the 20% of blast furnace slag quenching water heat, and the solution of the present invention heat recovery
Ratio is high, and more than the 60% of recyclable blast furnace slag quenching water heat.
2nd, tradition throws pipe heat exchanger recuperation of heat leaving water temperature below 70 DEG C, and the present invention program can realize blast furnace slag flushing
The step of water waste heat is recycled, and can meet that central heating, source pump thermal source, production technology water etc. are a variety of to use heat demand.
3rd, compared with Conventional plate-type heat exchanger, shell and tube exchanger, the recuperation of heat heat-exchange system of the present invention program has resistance to
The characteristics such as burn into good antiscale property, service life is long, stable, it is easy to safeguard.
Brief description of the drawings
By description referring to the drawings to the embodiment of the present invention, above-mentioned and other purpose of the invention, feature and
Advantage will be apparent from, in the accompanying drawings：
Fig. 1 is the composition structural representation of the blast furnace slag quenching water waste-heat recovery device of the present invention；
Fig. 2 is the structure chart of the heat exchanger of the present invention.
Fig. 3 is the enlarged drawing of Fig. 1 of present invention location A.
In figure：1st, blast furnace 2, slag ditch 3, grain slag 4, coarse sand rock layers 5, middle sand stone layer 6, fine sand rock layers 7, high temperature are changed
Thermosphere grid 8, middle temperature heat exchange layer grid 9, low-temperature heat exchange layer grid 10, high temperature heat exchange layer air flushing device 11, middle temperature
Heat exchange layer air flushing device 12, low-temperature heat exchange layer of air flusher 13, high temperature heat exchange coil 14, middle temperature heat exchange coil
15th, low-temperature heat exchange coil pipe 16, washing slag water delivery port 17, overfall 18, flushing cinder pond 19, storage cistern 20, storage slag storehouse.
Embodiment
Below based on embodiment, present invention is described, but the present invention is not restricted to these embodiments.Under
Text is detailed to describe some specific detail sections in the detailed description of the present invention.Do not have for a person skilled in the art
The description of these detail sections can also understand the present invention completely.In order to avoid obscuring the essence of the present invention, known method, mistake
Journey, flow, element do not have detailed narration.
So that the concrete structure of the blast furnace slag quenching water waste-heat recovery device of embodiment one to be introduced shown in Fig. 1：
The blast furnace slag flushing waste-heat recovery device includes flushing cinder pond 18.Flushing cinder pond 18 includes entrance (not shown), flushing cinder
Water delivery port 16, entrance is relative with the slag ditch 2 of blast furnace 1.Three-stage filtration layer is provided with the bottom filter tank in flushing cinder pond, is located at respectively
The upper, middle and lower in pond are considered at bottom, and it is coarse sand rock layers 4 at the middle and upper levels, and middle level is that middle sand stone layer 5, lower floor are fine sand rock layers 6.
Coarse sand rock layers 4, middle sand stone layer 5, fine sand rock layers 6 pass through high temperature heat exchange layer grid, middle temperature heat exchange layer grid, low-temperature heat exchange layer respectively
Grill bearing can leave a certain distance in the filter tank of bottom between grid.Inside coarse sand rock layers 4, middle sand stone layer 5, fine sand rock layers 6
High temperature heat exchange coil 13, middle temperature heat exchange coil 14, low-temperature heat exchange coil pipe 15 are respectively equipped with, is respectively used to flowing through grit layer 4,
Middle sand stone layer 5, the washing slag water of fine sand rock layers 6 are exchanged heat.
Although using three layer filtration layer in the present embodiment, and it is respectively provided with every layer of filter layer the side of heat exchange coil
Formula, but aforesaid way is only a kind of preferably embodiment, and technical scheme is not limited to aforesaid way.Filter layer
Quantity can be more than two any amounts, such as four, five.The quantity of heat exchange coil group can be with filter layer
Quantity is equal, i.e., heat exchange coil group is respectively provided with every layer of filter layer；Also it can be existed using the selectivity in multiple filter layers
Some filter layers are provided with heat exchanger, and other are not provided with heat exchanger, and now the quantity of heat exchange coil group is less than the number of filter layer
Amount.Each heat exchange coil group may include one or more heat exchange coils.
Filter layer, which is preferably provided with different filtration grades, such as the present embodiment, uses thick effect filter layer, medium air filtration
The mode of layer and high efficiency filter layer, so that the size of the eyelet of filter layer formation is different and then can pass through each filter layer
The size of impurity is different, realizes with different levels filtering.It can specifically use but be not limited to set not on each filter layer
With the mode of the filtering particle of size, the mistake positioned at downstream is such as more than using the size of the filtering particle of the filter layer positioned at upstream
Filtering layer filtering particle size mode, from upstream to downstream can using coarse granule filter layer, middle particle filter layer, thin
The mode of grain filter layer, can reach the effect of classified filtering well to washing slag water.The arrangement of filter layer is along washing slag water
Flow direction arranges, can using but be not limited to above-below direction, it is horizontally arranged, tiltedly arrange by the way of upper tiltedly lower or its combination.
In the present invention, so-called upstream refers to the position that direction of flow is on the flowing stream of flow of fluid, when flow of fluid
When flowing stream is compared to river, upstream of the so-called upstream equivalent to river；So-called downstream refers to the flowing stream in flow of fluid
Upper to be in the position for going to flow direction, when the flowing stream of flow of fluid is compared to river, so-called downstream is equivalent under river
Trip.From the time, what fluid was first reached is located at upstream, and what is reached after fluid is located at downstream.
The effect of grid is to provide supporting to filter layer and heat exchanger.Can be in flushing cinder pond along the setting of washing slag water flow direction
Multilayer grid, filter layer is separately positioned on different grids, can be spaced apart between grid and grid.It can so prevent
Only the long-term accumulation of impurity causes the blocking of filter layer, is also beneficial to periodically clear up filter layer.
Heat exchange coil can be using the corrosion resistance pipeline such as corrosion resistant metal pipe, polyethylene PE pipe, earthenware, and according to being
Unite required heat-exchange temperature, select the tubing of various heat exchange performance.Intraductal heat exchange medium can be water, other fluid media (medium)s or phase
Become medium etc..
In order to prevent the direct impingement heat transfer device heat exchanging device of washing slag water from causing to damage or corrode, filter layer can be put in arrangement
Put can the position suitably protected of heat exchanging device, i.e., heat exchanger is arranged in the inside of filter layer or is arranged in filter layer
Downstream, for example heat exchanger is arranged between filter layer and grid, or heat exchanger be arranged on grid downstream be also can be with
's.Washing slag water carries out heat exchange with heat exchanger again after buffering and filter through filter layer, effectively protects heat exchanger, improves device
Service life.The presence of filter layer reduces the flowing velocity of washing slag water simultaneously, extends the heat friendship of washing slag water and heat exchanger
The time is changed, contributes to heat exchanger fully to carry out exchanging for heat with washing slag water, improves waste heat recovery rate.Exchanging heat implement body can be with
Using the various ways such as heat exchange coil, plate type heat exchanger and case tube heat exchanger or its combination.
In order to prevent that the chemical substance under long-term use state in washing slag water from exchanging hot coil and grid causes corrosion, Ying Ding
Phase exchanges hot coil and grid is cleaned.As a kind of preferably embodiment, air flushing device is set in layers, such as
High temperature heat exchange layer air flushing device 10, middle temperature heat exchange layer air flushing device 11, the punching of low-temperature heat exchange layer of air shown in Fig. 1
Cleaning device 12, as shown in Figure 3, air cleaning device is arranged between grid and heat exchange coil, or is arranged in the bottom of grid
Portion, is periodically backwashed to each filter layer, and so-called backwash refers to that air-flow edge is opposite with washing slag water current flow direction
Direction filter layer is rinsed, can effectively prevent the corrosion and fouling of heat exchange coil and grid.
As a kind of preferably embodiment, washing slag water delivery port 16, overfall are also provided with flushing cinder pond 18
17, washing slag water delivery port 16, overfall 17 are connected with storage cistern 19.Washing slag water delivery port 16 is arranged on the bottom in flushing cinder pond 18
Portion, the washing slag water after filtering and heat exchange is entered in storage cistern 19 by washing slag water delivery port 16.Overfall 17 is arranged on punching
The top of slag bath 18, when the flushing cinder dilutional hyponatremia in flushing cinder pond 18, can enter storage cistern 19 by overfall 17, prevent flushing cinder
Water overflows from flushing cinder pond 18.
As a kind of preferably embodiment, the side in flushing cinder pond 18 is additionally provided with storage slag storehouse 20, flushing cinder pond through filtering
The bits left afterwards, which are placed into after cleaning equipment or manual cleaning in storage slag storehouse, to be used to store bits temporarily periodically to carry out
Cleaning.
In specific application, in heat exchange coil medium store heat can as other energy consumption equipments thermal source, due to
Blast furnace slag quenching water waste-heat recovery device positioned at different filter layers heat exchange coil export heat transferring medium temperature be it is different,
A variety of different energy consumption equipments can be connected, the different demands of different energy consumption equipments are met.
The blast furnace formed after being connected further below to the blast furnace slag flushing waste-heat recovery device of embodiment one with energy consumption equipment
The operating type of flushing cinder residual neat recovering system is described：
The advantage of this blast furnace slag flushing residual neat recovering system is that the various heat exchange device being arranged in different filter layers can be with defeated
Go out the heat transferring medium of different temperatures, the heat transferring medium of the different temperatures can be met as the thermal source of the energy consumption equipment of different demands
A variety of needs of energy consumption equipment.Illustrated below by taking the blast furnace slag flushing residual neat recovering system of preferred embodiment as an example.With
Under description in, all illustrated by heat transferring medium in the way of water.
High temperature furnace slag flow to flushing cinder pond 18 from blast furnace 1 by slag ditch 2, becomes grain slag 3, part blast furnace slag Jing after Shui temper
Heat is changed into the gasification latent heat of washing slag water, and after-heat makes 80 DEG C -90 DEG C of high temperature then as the sensible heat of washing slag water
Hot water.
After the filtering of high-temperature-hot-water and grain slag by coarse sand rock layers 4, realize that pulp water is separated, simultaneously flow through in coarse sand rock layers 4
The high temperature heat exchange coil 13 of setting, internal heat transferring medium is exchanged heat with it, and heat transferring medium is heated to 80-65 DEG C of model
Enclose, such as 75 DEG C or so.Middle warm water is subsequently becomed, middle temperature heat exchange layer is flowed into by high temperature heat exchange layer grid 7.High temperature is carried out to change
75 DEG C or so of the high-temperature-hot-water that hot coil 13 is reclaimed, can be connected with heating equipment and be directly used in central heating, can also make
For the thermal source of mono-potency lithium bromide unit, or it is connected to steel making equipment and meets process for producing steel and iron and use hot water demand.
After filtering of the middle warm water by middle sand stone layer 5, partial impurities are gone in worry, simultaneously flow through what is set in middle sand stone layer 5
Middle temperature heat exchange coil 14, internal heat transferring medium is exchanged heat with it, and heat transferring medium is heated into 65-45 DEG C or so, such as 55
DEG C or so, low-temperature water heating is subsequently becomed, low-temperature heat exchange layer is flowed into by middle temperature heat exchange layer grid 8.Middle temperature heat exchange coil 14 is returned
Receive 55 DEG C or so of middle warm water, can as double-effect lithium bromide unit thermal source, or be connected to steel making equipment satisfaction
Process for producing steel and iron uses hot water demand.
After filtering of the low-temperature water heating by fine sand rock layers 6, partial impurities are gone in worry, simultaneously flow through what is set in fine sand rock layers 6
Low-temperature heat exchange coil pipe 15, internal heat transferring medium is exchanged heat with it, and medium is heated into 45-25 DEG C or so, a such as 35 DEG C left sides
The right side, then by low-temperature heat exchange layer grid 9 and washing slag water delivery port 16, flows into storage cistern 19.Low-temperature heat exchange coil pipe 15 is reclaimed
35 DEG C or so of low-temperature water heating, can as mono-potency lithium bromide unit thermal source, or be connected to steel making equipment and meet steel
Process for making iron uses hot water demand.
Low-temperature water heating in storage cistern 19 also carries out further heat using Conventional plate-type heat exchanger and case tube heat exchanger
Recovery is used, can as compression type heat pump assembly thermal source, or meet process for producing steel and iron and use hot water demand.Then again
Once as blast furnace slag quenching water, recycled.
By setting multistage filtering layer and heat exchange coil in flushing cinder pond, classification recovery can be carried out to the waste heat of washing slag water,
And different energy consumption equipments are connected according to different dielectric film filter temperature, the different demands of different energy consumption equipments are met, punching is realized
Pulp water waste heat energy makes full use of, technical ability environmental protection, reduces the production cost of enterprise.
In addition, it should be understood by one skilled in the art that provided herein accompanying drawing be provided to explanation purpose, and
What accompanying drawing was not necessarily drawn to scale.
It will also be appreciated that example embodiment is provided, so that the disclosure is comprehensive, and its scope is fully passed on
To those skilled in the art.Many specific details (such as examples of particular elements, apparatus and method) are presented to provide to this
Disclosed comprehensive understanding.It will be apparent to one skilled in the art that specific detail need not be used, example embodiment can be with much not
Same form is carried out, and example embodiment is understood not to limit the scope of the present disclosure.In some example embodiments,
Well-known technique, well-known device structure and widely-known technique are not described in.
Term as used herein is only used for describing the purpose of particular example embodiment, is not intended to be restricted.Such as exist
What this was used, " one " of singulative, " one " and " described " also may be intended to include plural form, unless context is with other
Mode is explicitly pointed out.Term " comprising ", "comprising", " containing " and " having " for inclusive and therefore clearly state the spy
Levy, entirety, step, operation, the presence of element and/or part, but do not preclude the presence or addition of one or more further features,
Entirety, step, operation, element, part and/or its combination.Method and step described here, technique and operation will be not understood to
They are performed inevitable requirement with the particular order for discussing or illustrating, and are unless expressly stated the order of execution.It will also be appreciated that
Can be using other or the step of substitute.
When an element or layer be mentioned as another element or layer " on ", " being engaged to ", " being connected to " or " coupled
To " another element or layer when, it directly can be engaged on another element or layer, directly, be connected or coupled to another element or
Layer, or intermediary element or layer may be present.By contrast, when an element be mentioned as " direct " another element or layer " on ",
When " being bonded directly to ", " being directly coupled to " or " being directly coupled to " another element or layer, intermediary element can be not present
Or layer.Should be explained in a similar manner for describing other words of relation between element (for example, " between " with " directly existing
Between ", " neighbouring " and " being directly adjacent to " etc.).As used herein, term "and/or" includes the listed of one or more associations
Any or all combinations in project.
Although term first, second, third, etc. can be used for describing each element, part, region, floor and/or area herein
Section, but these elements, part, region, layer and/or section should not be limited by these terms.These terms can be only used for by
One element, part, region, layer or section are distinguished with another element, region, layer or section.Such as " first ", " second "
Term and other numerical value terms do not mean that order or order when used herein, unless clearly indicated by the context.Thus, below
The first element, part, region, layer or the section discussed is referred to alternatively as the second element, part, region, layer or section, without departing from
The teaching of example embodiment.In addition, in the description of the invention, unless otherwise indicated, " multiple " are meant that two or two
More than.
For ease of explanation, such as " interior ", " outer ", " under ", " lower section ", " bottom ", " top ", the space on " top " etc.
Relational language is used for the element illustrated in description figure or feature and another element or the relation of feature at this.It will be understood that
It is that space correlation term may be intended to comprising the different sides in addition to the orientation described in figure equipment in use or operation
Position.For example, if the equipment in figure is reversed, be described as be in other elements or feature " lower section " or " under " element in
It is that will be positioned in other elements or feature " top ".Thus, exemplary term " lower section " can include above and below side
Both positions.Equipment can otherwise be directed (be rotated by 90 ° or at other orientations), and space phase as used herein
Closing descriptor should be interpreted accordingly.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for those skilled in the art
For, the present invention can have various changes and change.It is all any modifications made within spirit and principles of the present invention, equivalent
Replace, improve etc., it should be included in the scope of the protection.
Claims (12)
1. a kind of blast furnace slag quenching water waste-heat recovery device, including：Flushing cinder pond (18), the flushing cinder pond is included an inlet and an outlet, its
It is characterised by：In the flushing cinder pond be located at the entrance and exit between, along washing slag water flow direction from upstream to downstream according to
It is secondary to be disposed with least two filter layers (4,5,6)；Also include at least two groups heat exchangers (13,14,15), the heat exchanger (13,
14th, 15) it is arranged in different filter layers, the washing slag water for filter layers different from flowing through carries out heat exchange.
2. blast furnace slag quenching water waste-heat recovery device as claimed in claim 1, it is characterised in that：At least two filter layers tool
There is various sizes of filtering particle.
3. blast furnace slag quenching water waste-heat recovery device as claimed in claim 2, it is characterised in that：Positioned at the mistake of the filter layer of upstream
The size for filtering particle is more than the size for filtering particle of the filter layer positioned at downstream.
4. blast furnace slag quenching water waste-heat recovery device as claimed in claim 1, it is characterised in that：Every layer of filter layer is respectively provided with
State heat exchanger.
5. the blast furnace slag quenching water waste-heat recovery device as described in claim 1 or 4, it is characterised in that：The heat exchanger is arranged on
Filter layer is interior and/or is arranged on the downstream of filter layer.
6. the blast furnace slag quenching water waste-heat recovery device as any one of claim 1-4, it is characterised in that：The washing slag water
Entrance is arranged on the top of flushing cinder pond (18), and the filter layer (4,5,6) is arranged along the vertical direction in flushing cinder pond.
7. blast furnace slag quenching water waste-heat recovery device as claimed in claim 6, it is characterised in that：Also include at least two grids
(7,8,9), the filter layer is separately positioned on grid.
8. blast furnace slag quenching water waste-heat recovery device as claimed in claim 7, it is characterised in that：Also include air flushing device
(10,11,12), for being backwashed to filter layer, heat exchanger and/or grid.
9. blast furnace slag quenching water waste-heat recovery device as claimed in claim 1, it is characterised in that：Also include storage cistern (19), institute
Storage cistern is stated with the outlet to be connected.
10. blast furnace slag quenching water waste-heat recovery device as claimed in claim 9, it is characterised in that：The flushing cinder pond (18) is provided with
The overfall connected with the storage cistern (19).
11. a kind of waste heat recovery system of blast furnace slag quenching water, including energy consumption equipment, it is characterised in that also including such as claim 1-10
Any one of blast furnace slag quenching water waste-heat recovery device, the blast furnace slag quenching water waste-heat recovery device heat exchanger (13,
14th, the heat transferring medium of different temperatures 15) is exported, the heat transferring medium of the different temperatures is used to provide energy for energy consumption equipment.
12. waste heat recovery system of blast furnace slag quenching water as claimed in claim 11, it is characterised in that：The energy consumption equipment includes supplying
Heating equipment, double-effect lithium bromide unit, mono-potency lithium bromide unit and/or steel making equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510392053.7A CN104946828B (en) | 2015-07-03 | 2015-07-03 | Blast furnace slag flushing water waste heat recovery device and waste heat recovery system |
Applications Claiming Priority (1)
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| CN113842683B (en) * | 2021-09-27 | 2023-05-26 | 中冶赛迪工程技术股份有限公司 | System for back flushing water slag filter layer by gas-liquid two-phase flow and back flushing method thereof |
| CN114053768B (en) * | 2021-11-24 | 2022-12-20 | 中冶京诚工程技术有限公司 | Method for preventing hardening of filter material of blast furnace water slag bottom filtering system |
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| CN201901674U (en) * | 2010-12-08 | 2011-07-20 | 中冶赛迪上海工程技术有限公司 | Waste heat utilizing system for slag quenching water from blast furnace |
| CN102492796A (en) * | 2011-12-20 | 2012-06-13 | 青岛理工大学 | Waste heat heating system and method for filtering blast furnace slag flushing water by using bottom filter |
| CN102676711A (en) * | 2012-05-04 | 2012-09-19 | 北京亿玮坤节能科技有限公司 | Method and system for recovering waste heat from INBA slag washing water of blast furnace |
| CN203602635U (en) * | 2013-12-20 | 2014-05-21 | 山东四化环保节能工程有限公司 | Device for using waste heat of blast furnace slag flushing water |
| CN204803334U (en) * | 2015-07-03 | 2015-11-25 | 珠海格力电器股份有限公司 | Blast furnace slag flushing water waste heat recovery device and waste heat recovery system |
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