CN105331830A - Furnace for smelting ferro-nickel - Google Patents
Furnace for smelting ferro-nickel Download PDFInfo
- Publication number
- CN105331830A CN105331830A CN201510849256.4A CN201510849256A CN105331830A CN 105331830 A CN105331830 A CN 105331830A CN 201510849256 A CN201510849256 A CN 201510849256A CN 105331830 A CN105331830 A CN 105331830A
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- CN
- China
- Prior art keywords
- heater
- nickel
- blast pipe
- interchanger
- stove
- 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
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B23/00—Obtaining nickel or cobalt
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a furnace for smelting ferro-nickel. The furnace comprises a furnace body. A feed inlet and a hot air outlet are formed in the top of the furnace body, air inlet pipes, a slag discharging outlet and a ferro-nickel discharging outlet are sequentially arranged on the side wall of the furnace body from top to bottom, and the air inlet pipes are led into the furnace body obliquely downwards. Air blown in from air inlets is downward along the horizontal plane, the air which is blown in can blow down molten nickel and molten iron adhering to slag, nickel and iron are separated from the slag, and therefore the nickel yield is greatly increased.
Description
Technical field
The present invention relates to Metal smelting technical field, especially relate to a kind of stove for smelting ferronickel.
Background technology
The method of existing nickel-iron smelting mainly contains three kinds: blast-furnace smelting, electrosmelting and chemistry are smelted, and conventional is blast-furnace smelting at present.The blast furnace of now conventional smelting ferronickel is all the blast furnace directly adopting original ironmaking.But the smelting process of ferronickel ore and iron ore smelting process make a big difference, general iron ore iron level is very high, and this metal of iron has very high mobility, therefore the iron being reduced out can flow to bottom blast furnace in the blown state automatically, but the nickel of ferronickel mineral and the content of iron are not very high, and the mobility of this metal of nickel is very bad, so after ferronickel is reduced out, easily be bonded in the blown state on slag, this just causes a large amount of ferronickel metal to be discharged together along with slag, causes waste.
Summary of the invention
The present invention is directed to deficiency of the prior art, provide a kind of stove for smelting ferronickel, greatly can improve the ore removal rate of nickel.
In order to solve the problems of the technologies described above, the present invention is solved by following technical proposals: a kind of stove for smelting ferronickel, comprise body of heater, the top of described body of heater is provided with opening for feed and hot air outlet, the sidewall of described body of heater is disposed with from top to bottom blast pipe, slag discharge port and ferronickel discharge port, described blast pipe is tilted to down and passes in described body of heater.Described blast pipe passes in described body of heater obliquely, and nickel and ferrous components by the liquid of the nickel that sticks on slag and iron toward blowing down, can be separated from slag, therefore greatly can improve the ore removal rate of nickel by the air be blown into.
In technique scheme, the angle between preferred described blast pipe and horizontal plane is 5 ° to 15 °.
In technique scheme, preferred described blast pipe has 18 to 20, and described blast pipe is uniformly distributed along the sidewall circumference of described body of heater.
In technique scheme, the arranged outside of preferred described body of heater has thermal insulation layer.
In technique scheme, preferably also comprise an interchanger, pilot chamber is provided with in described interchanger, the water-gas that described hot air outlet is discharged passes into be lighted in pilot chamber, described interchanger is also provided with induced draft fan, air is blown in described interchanger by described induced draft fan, and air is heated to 400 to 500 DEG C and then be admitted in described blast pipe in described interchanger.
In technique scheme, preferably also comprise a dust separator, the water-gas of discharging from described body of heater is sent in interchanger after described dust separator dedusting.
Compared with prior art, the invention has the beneficial effects as follows: the angle that blast inlet is blown into along horizontal plane down, nickel and ferrous components by the liquid of the nickel that sticks on slag and iron toward blowing down, can be separated from slag, therefore greatly can improve the ore removal rate of nickel by the air be blown into.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the embodiment of the present invention.
Schematic diagram when Fig. 2 is embodiment of the present invention use.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail.
See Fig. 1, a kind of stove for smelting ferronickel, comprise body of heater 1, dust separator 3 and interchanger 4, the top of described body of heater 1 is provided with opening for feed 11 and hot air outlet 12, the sidewall of described body of heater 1 is disposed with from top to bottom blast pipe 13, slag discharge port 14 and ferronickel discharge port 15, blast pipe 13 is tilted to down and passes in body of heater 1, and the angle between blast pipe 13 and horizontal plane is between 5 ° to 15 °.Blast pipe has 18 to 20, and blast pipe 18 is uniformly distributed along the sidewall circumference of body of heater 1.The arranged outside of described body of heater 1 has thermal insulation layer 16.
The hot air outlet 12 of body of heater 1 is connected with dust separator, and the water-gas of discharging from described body of heater 1 is sent in interchanger 4 after dust separator 3 dedusting.
Pilot chamber 41 is provided with in described interchanger 4, the water-gas that described hot air outlet is discharged passes into be lighted in pilot chamber, described interchanger is also provided with induced draft fan, air is blown in described interchanger by described induced draft fan, and air is heated to 400 to 500 DEG C and then be admitted in described blast pipe in described interchanger.In order to be that the energy can make full use of, the top of pilot chamber can also arrange a boiler, for generating.
See Fig. 2, during actual use, the present invention coordinates a set of feed mechanism 2 to use together, described feed mechanism 2 comprises feeding track 21, dolly 22 and the driving mechanism 23 driving dolly 22 to move on described feeding track 21, feeding track is obliquely installed, one end of feeding track 21 locates below ground level, the other end is positioned at the over top of body of heater 1, during use, at set intervals, as long as by coke, the furnace charge that ore and flux are combined into according to a certain percentage drops in dolly, furnace charge just can be delivered to the opening for feed place at body of heater top by driving mechanism automatically, in this position, dolly automatic turning, furnace charge is poured in body of heater.Whole process realizes automatization completely, not high to the level requirement of site operation personnel.
Claims (6)
1. the stove for smelting ferronickel, comprise body of heater, the top of described body of heater is provided with opening for feed and hot air outlet, the sidewall of described body of heater is disposed with from top to bottom blast pipe, slag discharge port and ferronickel discharge port, it is characterized in that: described blast pipe is tilted to down and passes in described body of heater.
2. a kind of stove for smelting ferronickel according to claim 1, is characterized in that: the angle between described blast pipe and horizontal plane is 5 ° to 15 °.
3. a kind of stove for smelting ferronickel according to claim 1 and 2, is characterized in that: described blast pipe has 18 to 20, and described blast pipe is uniformly distributed along the sidewall circumference of described body of heater.
4. a kind of stove for smelting ferronickel according to claim 1, is characterized in that: the arranged outside of described body of heater has thermal insulation layer.
5. a kind of stove for smelting ferronickel according to claim 1, it is characterized in that: also comprise an interchanger, pilot chamber is provided with in described interchanger, the water-gas that described hot air outlet is discharged passes into be lighted in pilot chamber, described interchanger is also provided with induced draft fan, air is blown in described interchanger by described induced draft fan, and air is heated to 400 to 500 DEG C and then be admitted in described blast pipe in described interchanger.
6. a kind of stove for smelting ferronickel according to claim 5, it is characterized in that: also comprise a dust separator, the water-gas of discharging from described body of heater is sent in interchanger after described dust separator dedusting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510849256.4A CN105331830A (en) | 2015-11-30 | 2015-11-30 | Furnace for smelting ferro-nickel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510849256.4A CN105331830A (en) | 2015-11-30 | 2015-11-30 | Furnace for smelting ferro-nickel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105331830A true CN105331830A (en) | 2016-02-17 |
Family
ID=55282588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510849256.4A Pending CN105331830A (en) | 2015-11-30 | 2015-11-30 | Furnace for smelting ferro-nickel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105331830A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3634064A (en) * | 1969-03-21 | 1972-01-11 | Hanna Mining Co | Process for the recovery of nickel from nickeliferous lateritic ores |
| CN101144135A (en) * | 2007-10-19 | 2008-03-19 | 深圳市格林美高新技术股份有限公司 | Technique for producing environment-friendly nickel/cobalt/iron alloy and system thereof |
| CN101358809A (en) * | 2008-07-16 | 2009-02-04 | 朝阳昊天有色金属有限公司 | Blast furnace |
| CN204325457U (en) * | 2014-10-23 | 2015-05-13 | 陈宗毓 | A kind of nickel minerals smelting furnace |
| CN105002364A (en) * | 2014-04-15 | 2015-10-28 | 中国瑞林工程技术有限公司 | Nickel slag side-blowing reduction technology |
-
2015
- 2015-11-30 CN CN201510849256.4A patent/CN105331830A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3634064A (en) * | 1969-03-21 | 1972-01-11 | Hanna Mining Co | Process for the recovery of nickel from nickeliferous lateritic ores |
| CN101144135A (en) * | 2007-10-19 | 2008-03-19 | 深圳市格林美高新技术股份有限公司 | Technique for producing environment-friendly nickel/cobalt/iron alloy and system thereof |
| CN101358809A (en) * | 2008-07-16 | 2009-02-04 | 朝阳昊天有色金属有限公司 | Blast furnace |
| CN105002364A (en) * | 2014-04-15 | 2015-10-28 | 中国瑞林工程技术有限公司 | Nickel slag side-blowing reduction technology |
| CN204325457U (en) * | 2014-10-23 | 2015-05-13 | 陈宗毓 | A kind of nickel minerals smelting furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160217 |
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| RJ01 | Rejection of invention patent application after publication |