CN207391472U - A kind of fusion reducing furnace - Google Patents
A kind of fusion reducing furnace Download PDFInfo
- Publication number
- CN207391472U CN207391472U CN201721077214.4U CN201721077214U CN207391472U CN 207391472 U CN207391472 U CN 207391472U CN 201721077214 U CN201721077214 U CN 201721077214U CN 207391472 U CN207391472 U CN 207391472U
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- CN
- China
- Prior art keywords
- furnace body
- furnace
- section
- babinet
- refractory masses
- 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.)
- Expired - Fee Related
Links
- 230000004927 fusion Effects 0.000 title claims abstract description 16
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 38
- 229910052742 iron Inorganic materials 0.000 claims abstract description 19
- 238000002844 melting Methods 0.000 claims abstract description 14
- 230000008018 melting Effects 0.000 claims abstract description 14
- 238000001816 cooling Methods 0.000 claims abstract description 12
- 239000003245 coal Substances 0.000 claims abstract description 10
- 238000001727 in vivo Methods 0.000 claims abstract description 8
- 239000003034 coal gas Substances 0.000 claims abstract description 7
- 238000006213 oxygenation reaction Methods 0.000 claims abstract description 7
- 239000007788 liquid Substances 0.000 claims abstract description 5
- 238000010079 rubber tapping Methods 0.000 claims abstract description 5
- 239000011449 brick Substances 0.000 claims abstract description 4
- 210000000038 chest Anatomy 0.000 claims description 3
- 239000011819 refractory material Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 description 10
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 3
- 239000002893 slag Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005453 pelletization Methods 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 241001062472 Stokellia anisodon Species 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011946 reduction process Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Vertical, Hearth, Or Arc Furnaces (AREA)
Abstract
Fusion reducing furnace is related to a kind of fusion reducing furnace.It is mainly of high cost to solve existing fusion reducing furnace, it is complicated for operation the problems such as and design.It includes babinet, track conveyor, feeder, and the feed inlet of furnace body is connected with the feed opening of babinet, on the basis of furnace body is fixed on, automatically controlled net is set below the in vivo furnace bottom of stove, initial stage preheating reduction section includes furnace wall, coal-gas recovering mouth is provided on furnace body；There are refractory masses in the furnace body of high temperature prereduction section and melting and reducing section, magnetic energy circle is set in refractory masses；Being built in the furnace body of whole reduction section has refractory brick, and tile exterior has automatically controlled net, there is refractory masses outside automatically controlled net, has cooling ring outside refractory masses, refractory masses are set outside cooling ring；There is molten iron outlet on the furnace body of whole reduction section, have tapping machine on the furnace body in molten iron exit.There are coal rifle, oxygenation rifle, temperature sensor, liquid level control sensor on the furnace body of whole reduction section.Advantage be it is at low cost, it is easy to operate.
Description
Technical field：
The utility model is related to a kind of fusion reducing furnaces.
Background technology：
Smelting reduction technology is one of several forward position new and high technologies of steel and iron industry, is a kind of common coal and general iron
Ore deposit produces the new process of molten iron.Due to the spies such as the method uses no or little coke, environmental protection is good, low energy consumption, transformation ability is fast
Point, thus paid close attention to be subject to countries in the world.
There are following shortcomings for existing fusion reducing furnace：Of high cost, investment is big, and raw material are required with height, and operation is multiple
It is miscellaneous, in whole reduction phase it sometimes appear that the situation of molten iron leakage, causes danger.It is extremely difficult to industrialized production.
The content of the invention：
The technical problem to be solved by the utility model is to provide a kind of meltings at low cost, easy to operate, safe to use
Reduction furnace.
Fusion reducing furnace described in the utility model includes crawler belt babinet, and it is defeated that the in vivo bottom of L-box is equipped with crawler belt
Machine is sent, the rear portion of crawler belt babinet is equipped with feed inlet, further includes feeder, the upper end of feeder is opposite with the feed inlet of crawler belt babinet
Should, the crawler belt babinet in front of track conveyor is equipped with feed opening, and crawler belt babinet front end is exported equipped with coal-gas recovering dedusting；
Furnace body is further included, there is feed inlet at the top of furnace body, the feed inlet at the top of furnace body is connected with the feed opening of babinet, furnace body
On the basis of being fixed on, the in vivo bottom of stove is equipped with furnace bottom, and the lower section of furnace bottom is equipped with automatically controlled net, is burner hearth in furnace body, the furnace body
Initial stage preheating reduction section, high temperature prereduction section, melting and reducing section, whole reduction section are followed successively by from top to bottom；
The initial stage preheating reduction section includes the furnace wall made by refractory material, and the furnace wall connects with inboard wall of furnace body
It touches, the coal-gas recovering mouth being connected with burner hearth is provided on furnace body；In the high temperature prereduction section and the furnace body of melting and reducing section
Refractory masses are all lined with, magnetic energy circle is equipped in refractory masses；Being built in the furnace body of whole reduction section has refractory brick, tile exterior
The automatically controlled net of a circle is surrounded with, refractory masses are equipped with outside automatically controlled net, cooling ring, cooling ring outside are equipped with outside refractory masses
Equipped with refractory masses, the refractory masses outside cooling ring are contacted with inboard wall of furnace body；It is provided on the furnace body of whole reduction section and stove
The molten iron that thorax is connected exports, and tapping machine is equipped on the furnace body in molten iron exit.
Several the coal rifle, oxygenation rifle, temperature sensor, the liquid that are connected with burner hearth is installed on the furnace body of whole reduction section
Position control sensor.
The furnace body of whole reduction section is equipped with observation panel and overflow port.
Coal rifle and the oxygenation rifle that several are connected with burner hearth are also installed on the furnace body of melting and reducing section.
Air curtain is equipped with above track conveyor, is fixed at the top of the air curtain on crawler belt babinet, track conveyor both sides
Equipped with striker plate.There is closing door in L-box body, closing door is located at the rear of air curtain, rail is set below track conveyor, when
When track conveyor disables, inlet can be moved to, then closes closing door.
The utility model has the advantages that：Due to being provided with automatically controlled net in whole reduction section, when molten iron leaks, protection can be played
Effect.Due to being provided with cooling ring in whole reduction section, the service life that can extend furnace wall is cooled down to furnace body.Using this melting
Reduction furnace can reduce discharge, and environmental pollution is small, at low cost, easy to operate.
Description of the drawings：
Fig. 1 is the structure diagram of the utility model.
Specific embodiment：
With reference to Fig. 1, fusion reducing furnace described in the utility model includes crawler belt babinet 1, the in vivo bottom of L-box
Equipped with track conveyor 2, the rear portion of crawler belt babinet is equipped with feed inlet, further includes feeder 3, upper end and the crawler belt babinet of feeder
Feed inlet it is corresponding, crawler belt babinet in front of track conveyor is equipped with feed opening 6, and crawler belt babinet front end is equipped with coal-gas recovering
Dedusting outlet 7；
Furnace body 8 is further included, there is feed inlet at the top of furnace body, the feed inlet at the top of furnace body is connected with the feed opening of babinet, stove
Body is fixed on basis 9, and the in vivo bottom of stove is equipped with furnace bottom 10, and the lower section of furnace bottom is equipped with automatically controlled net 11, is burner hearth 12 in furnace body,
The furnace body is followed successively by initial stage preheating reduction section, high temperature prereduction section, melting and reducing section, whole reduction section from top to bottom；
The initial stage preheating reduction section includes the furnace wall 26 made by refractory material, and the furnace wall connects with inboard wall of furnace body
It touches, the coal-gas recovering mouth 13 being connected with burner hearth is provided on furnace body；The high temperature prereduction section and the furnace body of melting and reducing section
Refractory masses 14 are inside all lined with, magnetic energy circle 15 is equipped in refractory masses；Being built in the furnace body of whole reduction section has refractory brick 16, resistance to
The automatically controlled net of a circle is surrounded with outside firebrick, refractory masses 17 are equipped with outside automatically controlled net, cooling ring is equipped with outside refractory masses
18, it is equipped with refractory masses outside cooling ring, the refractory masses outside cooling ring are contacted with inboard wall of furnace body；The stove of whole reduction section
The molten iron outlet 19 being connected with burner hearth is provided on body, tapping machine 20 is installed on the furnace body in molten iron exit.
The coal rifle 21, oxygenation rifle 22, temperature sensing that several are connected with burner hearth are installed on the furnace body of whole reduction section
Device 23, liquid level control sensor 24.
The furnace body of whole reduction section is equipped with observation panel and overflow port 25.
Coal rifle and the oxygenation rifle that several are connected with burner hearth are also installed on the furnace body of melting and reducing section.
Air curtain 4 is equipped with above track conveyor, is fixed at the top of the air curtain on crawler belt babinet, track conveyor both sides
Equipped with striker plate 5.There is closing door 27 in L-box body, closing door is located at the rear of air curtain, rail is set below track conveyor,
When track conveyor disables, inlet can be moved to, then closes closing door.
Smelting reduction process of the present invention：Carbonaceous pelletizing and shearing steel scrap, broken material, slag, granulated iron and some are broken
The initial stage preheating reduction section that steel enter multilayer reduction section fusion reducing furnace through feeder, track conveyor together is preheated
Reduction, the temperature of initial stage preheating reduction section are room temperature to 700 DEG C, then material（Carbonaceous pelletizing and steel scrap, broken material, slag, grain
Iron and some broken materials）High temperature prereduction section is entered, the temperature of high temperature prereduction section is 700-1000 DEG C, and then material enters
To melting and reducing section, the temperature of melting and reducing section is 1000-1450 DEG C, and then material enters whole reduction section, whole reduction section
Temperature is 1450-1700 DEG C, at this time according to the reduction situation of material by coal rifle add in a certain amount of coal as reducing agent and
Fuel is heated, is needed to match blowing oxygen quantity according to the temperature reduced eventually, when molten iron reaches highest liquid level, opens tapping machine, discharge
Then molten iron outlet obstruction is continued to smelt by the waste residues such as molten iron and silica, gangue with clay gun.Described contains carbon ball
Group and shearing steel scrap, broken material, slag, granulated iron, the weight ratio of broken steel are 5-95: 95—5.It can be according to the requirement of material
It is adjusted ratio.In blanking, if feed blocking is at the feed inlet of furnace body, guide bar can be used to be stirred down
Material.The mouth stretched out for guide bar is set on babinet.
Claims (6)
1. a kind of fusion reducing furnace, including crawler belt babinet（1）, it is characterized in that：The in vivo bottom of L-box is equipped with track conveyor
（2）, the rear portion of crawler belt babinet is equipped with feed inlet, further includes feeder（3）, the upper end of feeder and the feed inlet phase of crawler belt babinet
Corresponding, the crawler belt babinet in front of track conveyor is equipped with feed opening（6）, crawler belt babinet front end is exported equipped with coal-gas recovering dedusting
（7）；
Further include furnace body（8）, have feed inlet at the top of furnace body, the feed inlet at the top of furnace body is connected with the feed opening of babinet, furnace body
It is fixed on basis（9）On, the in vivo bottom of stove is equipped with furnace bottom（10）, the lower section of furnace bottom is equipped with automatically controlled net（11）, it is stove in furnace body
Thorax（12）, the furnace body is followed successively by initial stage preheating reduction section, high temperature prereduction section, melting and reducing section, whole reduction section from top to bottom；
The initial stage preheating reduction section includes the furnace wall made by refractory material（26）, the furnace wall connects with inboard wall of furnace body
It touches, the coal-gas recovering mouth being connected with burner hearth is provided on furnace body（13）；The high temperature prereduction section and the stove of melting and reducing section
It is all lined with refractory masses in vivo（14）, magnetic energy circle is equipped in refractory masses（15）；Being built in the furnace body of whole reduction section has fire resisting
Brick（16）, tile exterior is surrounded with the automatically controlled net of a circle, refractory masses is equipped with outside automatically controlled net（17）, refractory masses outside
Equipped with cooling ring（18）, it is equipped with refractory masses outside cooling ring, the refractory masses outside cooling ring are contacted with inboard wall of furnace body；
The molten iron outlet being connected with burner hearth is provided on the furnace body of whole reduction section（19）, tapping machine is installed on the furnace body in molten iron exit
（20）.
2. fusion reducing furnace described in accordance with the claim 1, it is characterized in that：Several and stove are installed on the furnace body of whole reduction section
The coal rifle that thorax is connected（21）, oxygenation rifle（22）, temperature sensor（23）, liquid level control sensor（24）.
3. according to the fusion reducing furnace described in claim 1 or 2, it is characterized in that：The furnace body of whole reduction section be equipped with observation panel and
Overflow port（25）.
4. according to the fusion reducing furnace described in claim 1 or 2, it is characterized in that：If it is also equipped on the furnace body of melting and reducing section
Dry the coal rifle being connected with burner hearth and oxygenation rifle.
5. according to the fusion reducing furnace described in claim 1 or 2, it is characterized in that：Air curtain is equipped with above track conveyor（4）, institute
It states and is fixed at the top of air curtain on crawler belt babinet, track conveyor both sides are equipped with striker plate（5）.
6. according to the fusion reducing furnace described in claim 1 or 2, it is characterized in that：There is closing door in L-box body（27）, closing door
Positioned at the rear of air curtain.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720854308 | 2017-07-14 | ||
| CN2017208543081 | 2017-07-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207391472U true CN207391472U (en) | 2018-05-22 |
Family
ID=62419340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721077214.4U Expired - Fee Related CN207391472U (en) | 2017-07-14 | 2017-08-26 | A kind of fusion reducing furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207391472U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107400748A (en) * | 2017-07-14 | 2017-11-28 | 蔡连举 | A kind of fusion reducing furnace and smelting reduction process |
-
2017
- 2017-08-26 CN CN201721077214.4U patent/CN207391472U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107400748A (en) * | 2017-07-14 | 2017-11-28 | 蔡连举 | A kind of fusion reducing furnace and smelting reduction process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180522 |