CN110241282A - A kind of direct reduced iron cooling device - Google Patents
A kind of direct reduced iron cooling device Download PDFInfo
- Publication number
- CN110241282A CN110241282A CN201910544323.XA CN201910544323A CN110241282A CN 110241282 A CN110241282 A CN 110241282A CN 201910544323 A CN201910544323 A CN 201910544323A CN 110241282 A CN110241282 A CN 110241282A
- Authority
- CN
- China
- Prior art keywords
- cylinder
- reduced iron
- cooling device
- direct reduced
- cooling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 49
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 238000007599 discharging Methods 0.000 claims abstract description 6
- 239000007921 spray Substances 0.000 claims description 14
- 238000000889 atomisation Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000007664 blowing Methods 0.000 abstract 1
- 239000000428 dust Substances 0.000 abstract 1
- 230000008676 import Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 239000000498 cooling water Substances 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 238000005192 partition Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 208000011580 syndromic disease Diseases 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D15/00—Handling or treating discharged material; Supports or receiving chambers therefor
- F27D15/02—Cooling
- F27D15/0206—Cooling with means to convey the charge
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
-
- 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
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
- Furnace Details (AREA)
Abstract
The invention belongs to comprehensive utilization of resources fields, are related to a kind of direct reduced iron cooling device, and the high temperature DRI being discharged from rotary hearth furnace imports cylinder by feed pipe, and using the type of cooling of air-cooled joint water cooling, DRI temperature is cooled to 200 DEG C or less by 1100 DEG C.Wherein, air-cooled part is carried out air-cooled using the structure type of the kiln body blower of collet cooperation fixed setting, is converged with the cold air of discharging chute sucking, is discharged by the hot air duct being arranged on cylinder；After cyclone dust collectors dedusting, 350-450 DEG C of hot blast temperature, dried for green-ball；Water cooling part is using the structure of circulation blowing on the outside of cylinder, and DRI temperature is lower than 200 DEG C after guarantee is cooling；The present invention cools down DRI in such a way that double sections are cooling, can effectively improve cooling efficiency, promotes cooling quality, improves working environment.
Description
Technical field
The invention belongs to comprehensive utilization of resources fields, are related to a kind of direct reduced iron cooling device.
Background technique
Steel mill's dedusting ash containing zinc with rotary hearth furnace reduction roast generate direct reduced iron (DRI) generally use cylinder spray water into
Row cooling, converting heat after cooling are the steam and hot water of uncontrollable discharge, and work on the spot environment is poor, and heat cannot achieve
Recycling.
Summary of the invention
Changed in view of this, the purpose of the present invention is to provide a kind of direct reduced iron cooling devices with improving cooling effect
Kind work on the spot environment.
In order to achieve the above objectives, the invention provides the following technical scheme:
A kind of direct reduced iron cooling device including hollow cylinder and is arranged in the feed pipe of cylinder two sides and goes out
Expect that chute, the cylinder are equipped with collet close to the side of feed pipe, the collet is equipped with far from the side of the cylinder
Kiln body blower, the kiln body blower are equipped with the air-cooled nozzle for communicating therewith and being set on inner barrel through cylinder and folder；
The cylinder is equipped with water cooling spray head close to the side of discharging chute.
Optionally, the cylinder is equipped on the side of feed pipe and is additionally provided with hot air duct, is used for hot wind in cylinder
It draws and recycles.
Optionally, deduster is additionally provided on the hot air duct.
Optionally, the water cooling spray head is atomizer.
It optionally, further include the cooling pond that water is sprayed for collecting water cooling spray head.
Optionally, high temperature blanket is equipped with outside the feed pipe.
Optionally, the high temperature blanket is the double-deck high temperature blanket.
Optionally, the air-cooled nozzle is circumferentially positioned at inner barrel in array.
Optionally, the air-cooled nozzle is equipped with 12, is circular layout in 3, includes 4 air-cooled nozzles in each annular.
Optionally, the collet is double-jacket.
The beneficial effects of the present invention are:
1, the present invention cools down DRI in such a way that double sections are cooling, can effectively improve cooling efficiency, promotes cooling
Quality, improve working environment not only ensure that the sealing of system, also reduces cylinder by the kiln body blower of fixed setting
Operating temperature；Using atomization cold water as supplement heat rejecter means, it is ensured that cooling temperature；Using the structure type of the double-deck high temperature blanket
Realize the air flow partition of cylinder material and rotary hearth furnace.
2, the present invention draws hot wind in cylinder using hot air duct, can carry out the secondary use of hot wind, can provide
The heat source of green-ball drying.
Other advantages, target and feature of the invention will be illustrated in the following description to a certain extent, and
And to a certain extent, based on will be apparent to those skilled in the art to investigating hereafter, Huo Zheke
To be instructed from the practice of the present invention.Target of the invention and other advantages can be realized by following specification and
It obtains.
Detailed description of the invention
To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention is made below in conjunction with attached drawing excellent
The detailed description of choosing, in which:
Fig. 1 is overall structure diagram of the invention.
Specific embodiment
Illustrate embodiments of the present invention below by way of specific specific example, those skilled in the art can be by this specification
Other advantages and efficacy of the present invention can be easily understood for disclosed content.The present invention can also pass through in addition different specific realities
The mode of applying is embodied or practiced, the various details in this specification can also based on different viewpoints and application, without departing from
Various modifications or alterations are carried out under spirit of the invention.It should be noted that diagram provided in following embodiment is only to show
Meaning mode illustrates basic conception of the invention, and in the absence of conflict, the feature in following embodiment and embodiment can phase
Mutually combination.
Wherein, the drawings are for illustrative purposes only and are merely schematic diagrams, rather than pictorial diagram, should not be understood as to this
The limitation of invention；Embodiment in order to better illustrate the present invention, the certain components of attached drawing have omission, zoom in or out, not
Represent the size of actual product；It will be understood by those skilled in the art that certain known features and its explanation may be omitted and be in attached drawing
It is understood that.
The same or similar label correspond to the same or similar components in the attached drawing of the embodiment of the present invention；It is retouched in of the invention
In stating, it is to be understood that if there is the orientation or positional relationship of the instructions such as term " on ", "lower", "left", "right", "front", "rear"
To be based on the orientation or positional relationship shown in the drawings, be merely for convenience of description of the present invention and simplification of the description, rather than indicate or
It implies that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore is described in attached drawing
The term of positional relationship only for illustration, is not considered as limiting the invention, for the ordinary skill of this field
For personnel, the concrete meaning of above-mentioned term can be understood as the case may be.
Referring to Fig. 1, the element numbers in attached drawing respectively indicate: cylinder 1, kiln body blower 3, water cooling spray head 4, goes out collet 2
Expect chute 5, cooling pond 6, air-cooled nozzle 7, feed pipe 8, high temperature blanket 9, hot air duct 10, deduster 11.
The present invention relates to a kind of direct reduced iron cooling devices, and including hollow cylinder 1 and 1 two sides of cylinder are arranged in
Feed pipe 8 and discharging chute 5, the cylinder 1 are equipped with collet 2 close to the side of feed pipe 8, and the collet 2 is far from institute
The side for stating cylinder 1 is equipped with kiln body blower 3, and the kiln body blower 3, which is equipped with, to be communicated therewith and set through cylinder 1 and collet 2
Set the air-cooled nozzle 7 inside cylinder 1；The cylinder 1 is equipped with water cooling spray head 4 close to the side of discharging chute 5.
Optionally, the cylinder 1 is equipped on the side of feed pipe 8 and is additionally provided with hot air duct 10, and being used for will be in cylinder 1
Hot wind, which is drawn, to be recycled；It is additionally provided with deduster 11 on the hot air duct 10,350-450 DEG C of the hot wind after dedusting passes through high temperature
Air inducing machine travel and go out, can be used for green-ball drying；The water cooling spray head 4 is atomizer；It further include for collecting water cooling spray head 4
Spray the cooling pond 6 of water；High temperature blanket 9 is equipped with outside the feed pipe 8；The high temperature blanket 9 is the double-deck high temperature blanket 9；Institute
Air-cooled nozzle 7 is stated to be circumferentially positioned inside cylinder 1 in array；The air-cooled nozzle 7 is equipped with 12, is circular layout in 3, often
It include 4 air-cooled nozzles 7 in a annular；The collet 2 is double-jacket 2.
In the present embodiment by taking 200,000 t/a rotary hearth furnace of annual amount for the treatment of as an example.
1) DRI 18t/h feeds 1100 DEG C of temperature section, discharges 200 DEG C.
2) cylinder 1 is having a size of 3 × 30m, high temperature section (being laid with 2 sections of collet) 20m, low-temperature zone (arrangement water-cooled nozzle section) 7m,
In addition 3m is the supporting section that is driven and discharges.
3) DRI heat release 16.2GJ/h, high temperature section DRI temperature are down to 300 DEG C by 1100 DEG C, and low-temperature zone DRI is reduced to by 300 DEG C
200℃。
4) cooling wind goes out after collet 2 200 DEG C of wind-warm syndrome, void tower flow velocity 1.0Nm/s in cylinder 1,2.5 ten thousand Nm3/h of air quantity, heat exchange
Efficiency 85%, 270 DEG C of temperature rise of hot wind, 470 DEG C of hot blast temperature, sirocco reclamation DRI heat 9.2GJ/h
5) 5 DEG C of cooling water temperature rise, heat exchange efficiency 90%, cooling water take heat 1.62GJ/h, cooling water inflow 77t/h out of.
The present invention cools down DRI in such a way that double sections are cooling, can effectively improve cooling efficiency, promotes heat-eliminating medium
Amount, improve working environment not only ensure that the sealing of system, also reduces cylinder 1 by the kiln body blower 3 of fixed setting
Operating temperature；Using atomization cold water as supplement heat rejecter means, it is ensured that cooling temperature；Using the structure shape of the double-deck high temperature blanket 9
Formula realizes the air flow partition of cylinder 1 material and rotary hearth furnace；Hot wind in cylinder 1 is drawn using hot air duct 10, can be carried out
The secondary use of hot wind can provide the heat source of green-ball drying.
Finally, it is stated that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although referring to compared with
Good embodiment describes the invention in detail, those skilled in the art should understand that, it can be to skill of the invention
Art scheme is modified or replaced equivalently, and without departing from the objective and range of the technical program, should all be covered in the present invention
Scope of the claims in.
Claims (10)
1. a kind of direct reduced iron cooling device, it is characterised in that: including hollow cylinder and be arranged in cylinder two sides into
Pipe material and discharging chute, the cylinder are equipped with collet close to the side of feed pipe, and the collet is far from the cylinder
Side is equipped with kiln body blower, and the kiln body blower, which is equipped with, to be communicated therewith and be set on inner barrel through cylinder and folder
Air-cooled nozzle；The cylinder is equipped with water cooling spray head close to the side of discharging chute.
2. direct reduced iron cooling device as described in claim 1, it is characterised in that: the cylinder is equipped with feed pipe
Side on be additionally provided with hot air duct, for by cylinder hot wind draw recycle.
3. direct reduced iron cooling device as described in claim 2, it is characterised in that: be additionally provided with and remove on the hot air duct
Dirt device.
4. direct reduced iron cooling device as described in claim 1, it is characterised in that: the water cooling spray head is atomization spray
Mouth.
5. direct reduced iron cooling device as described in claim 1, it is characterised in that: further include for collecting water cooling spray head
Spray the cooling pond of water.
6. direct reduced iron cooling device as described in claim 1, it is characterised in that: be equipped with outside the feed pipe
High temperature blanket.
7. direct reduced iron cooling device as described in claim 6, it is characterised in that: the high temperature blanket is the double-deck high temperature
Blanket.
8. direct reduced iron cooling device as described in claim 1, it is characterised in that: the air-cooled nozzle is in array ring
Around setting in inner barrel.
9. direct reduced iron cooling device as described in claim 8, it is characterised in that: the air-cooled nozzle is equipped with 12,
It is circular layout in 3, includes 4 air-cooled nozzles in each annular.
10. direct reduced iron cooling device as described in claim 1, it is characterised in that: the collet is double-jacket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910544323.XA CN110241282A (en) | 2019-06-21 | 2019-06-21 | A kind of direct reduced iron cooling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910544323.XA CN110241282A (en) | 2019-06-21 | 2019-06-21 | A kind of direct reduced iron cooling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110241282A true CN110241282A (en) | 2019-09-17 |
Family
ID=67888839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910544323.XA Pending CN110241282A (en) | 2019-06-21 | 2019-06-21 | A kind of direct reduced iron cooling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110241282A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011122184A (en) * | 2009-12-08 | 2011-06-23 | Nippon Steel Corp | Apparatus and method for producing reduced iron pellet using rotary hearth type reducing furnace |
| CN202072720U (en) * | 2011-05-16 | 2011-12-14 | 重庆赛迪工业炉有限公司 | High-temperature direct reduced iron cooling system |
| CN107557509A (en) * | 2016-06-30 | 2018-01-09 | 中冶长天国际工程有限责任公司 | A kind of vertical cooling device and its application method |
| CN108123177A (en) * | 2018-01-31 | 2018-06-05 | 河南国能电池有限公司 | Pole piece cooling device |
| CN207662214U (en) * | 2018-03-14 | 2018-07-27 | 铜川恒晟科技材料有限公司 | A kind of ceramsite sand cooling device |
| CN109163342A (en) * | 2018-11-05 | 2019-01-08 | 湖南水口山有色金属集团有限公司 | A kind of furnace body floss hole flue gas leakage device |
| CN210481426U (en) * | 2019-06-21 | 2020-05-08 | 重庆赛迪热工环保工程技术有限公司 | Direct reduced iron cooling device |
-
2019
- 2019-06-21 CN CN201910544323.XA patent/CN110241282A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011122184A (en) * | 2009-12-08 | 2011-06-23 | Nippon Steel Corp | Apparatus and method for producing reduced iron pellet using rotary hearth type reducing furnace |
| CN202072720U (en) * | 2011-05-16 | 2011-12-14 | 重庆赛迪工业炉有限公司 | High-temperature direct reduced iron cooling system |
| CN107557509A (en) * | 2016-06-30 | 2018-01-09 | 中冶长天国际工程有限责任公司 | A kind of vertical cooling device and its application method |
| CN108123177A (en) * | 2018-01-31 | 2018-06-05 | 河南国能电池有限公司 | Pole piece cooling device |
| CN207662214U (en) * | 2018-03-14 | 2018-07-27 | 铜川恒晟科技材料有限公司 | A kind of ceramsite sand cooling device |
| CN109163342A (en) * | 2018-11-05 | 2019-01-08 | 湖南水口山有色金属集团有限公司 | A kind of furnace body floss hole flue gas leakage device |
| CN210481426U (en) * | 2019-06-21 | 2020-05-08 | 重庆赛迪热工环保工程技术有限公司 | Direct reduced iron cooling device |
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