CN207713761U - A kind of direct reduced iron cooling device - Google Patents
A kind of direct reduced iron cooling device Download PDFInfo
- Publication number
- CN207713761U CN207713761U CN201721798697.7U CN201721798697U CN207713761U CN 207713761 U CN207713761 U CN 207713761U CN 201721798697 U CN201721798697 U CN 201721798697U CN 207713761 U CN207713761 U CN 207713761U
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- Prior art keywords
- cooling
- reduced iron
- direct reduced
- cooling air
- air
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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
Abstract
The utility model discloses a kind of direct reduced iron cooling devices, including sequentially connected cooling device ontology, dust-extraction unit, heat recovering device, cooling air circulator, cooling device ontology includes feed inlet, cooling cylinder, discharge port, cooling gas outlet, cooling air import；Feed inlet and cooling gas outlet are located at the head of cooling cylinder；Discharge port and the cooling gas outlet are located at the tail portion of cooling cylinder；Cooling air circulator includes sequentially connected wind turbine, chimney, circulating air pipeline；Cooling gas outlet is connect with dust-extraction unit, and circulating air pipeline is connect with cooling air import.The direct reduced iron cooling device of the utility model, it is simple in structure, it is easy to use, industrial fresh water is not consumed, cooling gas recycles in production process, a large amount of ash-laden gas will not be produced, working environment is good, improves the sensible heat utilization rate of direct reduced iron, is suitable for the cooling of high-temperature direct reduced iron, direct reduced iron secondary oxidation is avoided, while being capable of recovered flue gas sensible heat.
Description
Technical field
The utility model belongs to metallurgy industry energy-saving field, and in particular to a kind of direct reduced iron cooling device.
Background technology
Direct-reduction is a kind of widely used non-blast furnace ironmaking technology, is divided into gas base directly reducing and coal base directly also
It is former.For gas-based reduction device mainly based on gas-based shaft kiln, coal base reduction device has rotary kiln, rotary hearth furnace, tunnel oven etc..Directly also
The product of original production is direct reduced iron, is commonly called as DRI, 700~100 DEG C of drop temperature.High-temperature direct reduced iron (DRI) at present
Cooling major way there is cylinder to cool down indirectly, water quenching etc..Cylinder is indirectly cooling to have intensity of cooling weak, and huge wait of equipment lacks
Point.Water quenching cooling needs to consume a large amount of cooling water, while producing a large amount of water vapour, etching apparatus, and work on the spot environment is poor.
Prior art DRI sensible heats can not recycle simultaneously.
Utility model content
Purpose of utility model：In order to overcome the deficiencies in the prior art, the utility model to provide a kind of direct-reduction
Iron cooling device, by inert nitrogen gas and the directly cooling DRI of high temperature DRI counter current contactings, heating postcooling gas sequentially enters
Dust-extraction unit, heat recovering device, cooling air circulator recycle after recycling sensible heat.The utility model intensity of cooling is big,
The secondary oxidation of high temperature DRI can be avoided, while recycling DRI sensible heats.
Technical solution：In order to solve the above technical problems, a kind of direct reduced iron cooling device of the utility model, including according to
The cooling device ontology of secondary connection, dust-extraction unit, heat recovering device, cooling air circulator, the cooling device ontology packet
Include feed inlet, cooling cylinder, discharge port, cooling gas outlet, cooling air import；The feed inlet and cooling gas outlet are located at cooling
The head of cylinder；The discharge port and the cooling gas outlet are located at the tail portion of cooling cylinder；The cooling air circulator packet
Include sequentially connected wind turbine, chimney, circulating air pipeline；The cooling gas outlet is connect with dust-extraction unit, the circulating air pipeline
It is connect with cooling air import.
Preferably, the dust-extraction unit is in multi-tube dust cleaner, cyclone dust collectors or heat safe bag filter
It is a kind of.
Wherein, the heat recovering device is heat exchanger or produces the waste heat boiler of steam.
When the heat recovering device is waste heat boiler, it is provided with water inlet on the heat recovering device and steam goes out
Mouthful.Cooling air after dust separation enters heat recovering device, and water enters from water inlet, the steam generated after being heated by gas
It is flowed out from steam (vapor) outlet, the steam that heat recovering device generates is supplied as outside product.
Preferably, the cooling cylinder body bottom is provided with support device and transmission device.It is cold that support device plays support
But the effect of cylinder, actuator drives cool down cylinder rotation, so that direct reduced iron is cooled down by rotation more thorough.
Preferably, the cooling air circulator includes that chimney is connect with wind turbine.When needing maintenance, cooling air passes through
Chimney empties.
It is connect with cooling air import preferably, the cooling air circulator includes circulating air making-up air device.Circulating air
Making-up air device supplements cooling air in system.
Preferably, the cooling air is inert nitrogen gas.
Operation principle：High temperature DRI enters cooling cylinder from feed inlet when cooling device works, and it is cold that support device plays support
But the effect of cylinder, actuator drives cool down cylinder rotation, and cooling air is that inert nitrogen gas enters from cooling air import, high
Warm DRI is gradually cooled down with cooling air counter current contacting, and DRI after cooling is flowed out from discharge port, and the cooling air heated is from cooling air
Outlet outflow sequentially enters dust-extraction unit, and heat recovering device, cooling gas recovering device recycle；Wherein, through dust-extraction unit
Cooling air after dust separation enters heat recovering device, and water enters from water inlet, and the steam generated after being heated by gas is from steaming
Vapor outlet flows out, and the steam that heat recovering device generates is supplied as outside product；It recycles the cooling air after sensible heat and passes through wind turbine, cycle
Feed channel reenters cooling cylinder；When needing maintenance, cooling air is emptied by chimney；Circulating air making-up air device is in system
Cooling air is supplemented.
Advantageous effect：The direct reduced iron cooling device of the utility model, it is simple in structure, it is easy to use, do not consume industry
New water, cooling gas recycles in production process, will not produce a large amount of ash-laden gas, working environment is good, improves DRI's
Sensible heat utilization rate.The utility model is suitable for the cooling of high-temperature direct reduced iron, and cooling air is inert gas, avoids DRI bis-
Secondary oxidation, while being capable of recovered flue gas sensible heat.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model.
Specific implementation mode
Below in conjunction with drawings and examples, the utility model is described in further detail.
As shown in Figure 1, a kind of direct reduced iron cooling device, a kind of direct reduced iron cooling device, including be sequentially connected
Cooling device ontology 1, dust-extraction unit 2, heat recovering device 3, cooling air circulator；Cooling device ontology 1 includes charging
Mouth 1-1, cooling cylinder 1-2, discharge port 1-3, cooling gas outlet 1-4, cooling air import 1-5, support device 1-6 and transmission device
1-7；Feed inlet 1-1 and cooling gas outlet 1-4 is located at the head of cooling cylinder 1-2；The discharge port 1-3 and cooling gas outlet 1-
5 are located at the tail portion of cooling cylinder 1-2；Support device 1-6 and transmission device 1-7 is located at the bottoms cooling cylinder 1-2.Cooling air recycles
Device includes sequentially connected wind turbine 4-1, circulating air pipeline 4-2, and cooling air circulator further includes chimney 4-3 and wind turbine 4-1
Connection, circulating air making-up air device 4-4 and cooling air import 1-5；Cooling gas outlet 1-4 is connect with dust-extraction unit 2, circulating air pipeline
4-2 is connect with cooling air import 1-5.
Dust-extraction unit 2 is multi-tube dust cleaner, cyclone dust collectors or heat safe bag filter, usually selects cyclone dust removal
Device；Heat recovering device 3 is heat exchanger or produces the waste heat boiler of steam, usually selects waste heat boiler, and fill in Exposure degree
It sets and is provided with water inlet 3-1 and steam (vapor) outlet 3-2 on 3.
High temperature DRI enters cooling cylinder 1-2 from from feed inlet 1-1 when cooling device works, and it is cold that support device plays support
But the effect of cylinder, actuator drives cool down cylinder rotation, cooling air be inert nitrogen gas from cooling air import 1-5 into
Enter, high temperature DRI and cooling air inert nitrogen counter current contacting gradually cool down DRI.DRI after cooling is discharged from discharge port 1-3, quilt
The cooling air of heating sequentially enters dust-extraction unit 2 from cooling gas outlet 1-4 outflows, and heat recovering device 3 recycles cold after sensible heat
But gas enters back into the wind turbine 4-1 of cooling gas recovering device, circulating air pipeline 4-3, reenters in cooling cylinder 1-2, recycling
It uses.Wherein, the cooling air after 2 dust separation of dust-extraction unit enters heat recovering device 3, at this time water from water inlet 3-1 into
Enter, the steam generated after being heated by gas from steam (vapor) outlet 3-2 flow out, heat recovering device 3 generate steam as product outside
For.When needing maintenance, cooling air is emptied by chimney 4-2, and circulating air making-up air device 4-4 carries out cooling air in whole device
Supplement.
Claims (8)
1. a kind of direct reduced iron cooling device, which is characterized in that filled including sequentially connected cooling device ontology (1), dedusting
(2), heat recovering device (3), cooling air circulator are set, the cooling device ontology (1) includes feed inlet (1-1), cooling
Cylinder (1-2), discharge port (1-3), cooling gas outlet (1-4), cooling air import (1-5)；The feed inlet (1-1) and cooling air
Export the head that (1-4) is located at cooling cylinder (1-2)；The discharge port (1-3) and the cooling air import (1-5) are located at cooling
The tail portion of cylinder (1-2)；The cooling air circulator includes sequentially connected wind turbine (4-1), circulating air pipeline (4-2)；Institute
It states cooling gas outlet (1-4) to connect with dust-extraction unit (2), the circulating air pipeline (4-2) connect with cooling air import (1-5).
2. direct reduced iron cooling device according to claim 1, which is characterized in that the dust-extraction unit (2) is multitube
One kind in deduster, cyclone dust collectors or heat safe bag filter.
3. direct reduced iron cooling device according to claim 1, which is characterized in that the heat recovering device (3) is
Heat exchanger or the waste heat boiler for producing steam.
4. direct reduced iron cooling device according to claim 3, which is characterized in that the heat recovering device (3) is
When waste heat boiler, water inlet (3-1) and steam (vapor) outlet (3-2) are provided on the heat recovering device (3).
5. direct reduced iron cooling device according to claim 1, which is characterized in that cooling cylinder (1-2) bottom
It is provided with support device (1-6) and transmission device (1-7).
6. direct reduced iron cooling device according to claim 1, which is characterized in that the cooling air circulator includes
Chimney (4-3) is connect with wind turbine (4-1).
7. direct reduced iron cooling device according to claim 1, which is characterized in that the cooling air circulator includes
Circulating air making-up air device (4-4) is connect with cooling air import (1-5).
8. direct reduced iron cooling device according to claim 1, the cooling air is inert nitrogen gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721798697.7U CN207713761U (en) | 2017-12-21 | 2017-12-21 | A kind of direct reduced iron cooling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721798697.7U CN207713761U (en) | 2017-12-21 | 2017-12-21 | A kind of direct reduced iron cooling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207713761U true CN207713761U (en) | 2018-08-10 |
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ID=63056663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721798697.7U Active CN207713761U (en) | 2017-12-21 | 2017-12-21 | A kind of direct reduced iron cooling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207713761U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113893620A (en) * | 2021-11-18 | 2022-01-07 | 中钢设备有限公司 | Finished product dust removal method and device for direct reduced iron |
-
2017
- 2017-12-21 CN CN201721798697.7U patent/CN207713761U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113893620A (en) * | 2021-11-18 | 2022-01-07 | 中钢设备有限公司 | Finished product dust removal method and device for direct reduced iron |
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| GR01 | Patent grant | ||
| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20190102 Granted publication date: 20180810 |
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| PD01 | Discharge of preservation of patent | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20220102 Granted publication date: 20180810 |
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| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20220102 Granted publication date: 20180810 |