CN207176035U - A kind of lateritic nickel ore dry method suspension sintering equipment - Google Patents
A kind of lateritic nickel ore dry method suspension sintering equipment Download PDFInfo
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- CN207176035U CN207176035U CN201720991309.0U CN201720991309U CN207176035U CN 207176035 U CN207176035 U CN 207176035U CN 201720991309 U CN201720991309 U CN 201720991309U CN 207176035 U CN207176035 U CN 207176035U
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- suspension
- prereduction
- nickel ore
- sintering furnace
- sintering
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Abstract
A kind of lateritic nickel ore dry method suspension sintering equipment, belongs to smelting laterite-nickel ores device.Lateritic nickel ore dry method suspension sintering equipment, including：Feeder, suspension prereduction device, sintering furnace, surge bunker and suspension cooling device；The output end of feeder is connected with the feeding end of suspension prereduction device, the discharge end of suspension prereduction device and the feeding end of sintering furnace connect, the discharge end of sintering furnace is connected with the feeding end of suspension cooling device, and the discharge end of suspension cooling device and the feeding end of surge bunker connect.Lateritic nickel ore granular material is sent into suspension prereduction device by feeder, preheats step by step, is sintered reduction into sintering furnace, material enters suspension cooling device, and material cools down step by step, into surge bunker.With flow direction of material on the contrary, suspension cooling device discharge gas sequentially enters sintering furnace, suspension prereduction device, waste gas is purified, discharged for gas flow.The present apparatus realizes suspend cooling, suspension prereduction, UTILIZATION OF VESIDUAL HEAT IN, the advanced technology of exhaust-gas treatment.
Description
Technical field
It the utility model is related to a kind of smelting laterite-nickel ores device, and in particular to a kind of lateritic nickel ore dry method, which suspends, sinters dress
Put.
Background technology
With the extensive use of global stainless steel and special steel, the main element one of smelting stainless steel and special steel is caused
Nickel metal short supply, causes rapid rise of price.Traditional nickel Metal Production is mainly extracted from nickel sulfide ore.Although production technology
Maturation, but continuously exploited by last 100 yearses, content deficiency, resource are fewer and fewer at present.Force people big to accounting for earth nickel resources
Nickel metal is extracted in partial nickel ore and gives more attention.
Laterite-type nickel ore can produce the intermediate products such as nickel oxide, sulphur nickel, iron nickel, the method for laterite nickel ore and producing ferronickel
There are hydrometallurgy and pyrometallurgy, but the large-scale production of technics comparing maturation is still based on pyrometallurgy.Due to Chinese Enterprises
Main ferronickel production technology is blast furnace process and mine heat furnace smelting (RKEF), as Environmental Protection in China policy requirements improve, high consumption
Energy, high pollution industry will be closed, and this technique of blast furnace process will all eliminate in recent years, and mine heat furnace smelting (RKEF) is same
Highly energy-consuming, high pollution situation be present.
Utility model content
The defects of to overcome in the prior art, the utility model, which provides one kind, can reduce energy consumption, the laterite of clean manufacturing
Nickel minerals dry method suspension sintering equipment.
In order to solve problem of the prior art, the utility model adopts the following technical scheme that：
Dry method suspension sintering equipment includes：Feeder, suspension prereduction device, sintering furnace, surge bunker and the cooling dress that suspends
Put；The output end of feeder is connected with the feeding end of suspension prereduction device, the discharge end and sintering furnace of suspension prereduction device
Feeding end connection, the discharge end of sintering furnace is connected with the feeding end of suspension cooling device, the discharge end of suspension cooling device and
The feeding end connection of surge bunker.
Described suspension prereduction device is multistage, is interconnected to constitute by levitation device；Previous stage input is input
End, the output end of previous stage and the input of rear stage connect, and the output end of rear stage is output end；Or previous stage is multiple
It is in parallel multiple with rear stage in parallel to be in series.
Described suspension cooling device is also interconnected to constitute by multiple levitation devices, and connected mode is mostly to connect.
Levitation device structure in per one-level is identical, including：Cyclone separator, inner cylinder, heat exchange pipeline and tremie pipe；Revolving
Wind separator is connected with inner cylinder in upper end, and inner cylinder is stretched in cyclone separator；Blanking is connected with the lower end of cyclone separator
Pipe；Heat exchanger tube is connected with the side on the top of cyclone separator, the arrival end of heat exchanger tube in the lower section of cyclone separator, and with
The air-flow increase in pipeline of next stage is connected；Upper level tremie pipe, the pan feeding of upper level tremie pipe are also associated with heat exchanger tube
End disposes from the top down.
Beneficial effect, by adopting the above-described technical solution, lateritic nickel ore granular material is sent into pre- go back that suspend through feeder
The first order of original device, the material fallen in suspension prereduction device meet with sintering furnace waste heat waste gas, and material absorbs heat and entered
Row preheating, material oxide and CO, H in flue gas2Deploy reduction reaction, lateritic nickel ore material preheats step by step and prereduction, suspends
The afterbody material of prereduction enters sintering furnace, and sintering and reducing reaction occurs, and material enters the cooling dress that suspends after sintering and reducing
Put, material from the suspension cooling device first order enter, with cold air mixed heat transfer, cool down step by step, suspension cooling device it is last
One-level enters surge bunker（Smelting link is transported to after being measured by surge bunker bottom）；Cold air enters the first of suspension cooling device
Level, is discharged into sintering furnace with the afterbody of suspension cooling device after thermal material mixed heat transfer, smelts the flash fire grate of link
Go out heat smoke and also enter sintering furnace, from sintering furnace discharge hot waste gas enter suspension prereduction device afterbody, waste gas by
Level cools, CO, H in waste gas2Amount is reduced step by step, the purified rear discharge of first order cooling waste gas of suspension prereduction device.
Dry method suspension sintering equipment and Flash Smelting Furnace combination ferronickel smelting proces, using suspension prereduction, suspension sintering and reducing,
Suspension cooling technique, reducing the problem such as the high energy consumption of generally existing, high pollution in existing smelting process has realistic meaning.
Advantage：
1）The waste heat flue gas for smelting the discharge of link Flash Smelting Furnace and the cooling heel row that suspends are hanged except hot gas uses dry method
In floating sintering equipment, the amount of heat in waste heat waste gas is reclaimed, UTILIZATION OF VESIDUAL HEAT IN, has greatly reduced energy loss.
2）Smelt in the heat smoke of link Flash Smelting Furnace discharge and contain CO, H2, make use of CO, H in flue gas2For prereduction, sintering
The reducing agent of reduction, the peak use rate of raw material is realized, save raw material.
3）The device belongs to closing production, and the purified rear discharge up to standard of flue gas, environment-friendly after cooling step by step.
Brief description of the drawings
Fig. 1 is lateritic nickel ore dry method suspension sintering equipment structural representation of the present utility model.
Fig. 2 is the new levitation device structural representation of this practicality.
In figure, 1, feeder；2nd, suspension prereduction device；3rd, sintering furnace；4th, surge bunker；5th, suspension cooling device；10th, it is interior
Cylinder；11st, cyclone separator；12nd, tremie pipe；13rd, heat exchange pipeline；14th, upper level blanking pipe；15th, next stage blanking pipe.
Embodiment
Dry method suspension sintering equipment includes：Feeder 1, suspension prereduction device 2, sintering furnace 3, surge bunker 4 and suspension are cold
But device 5；The output end of feeder 1 is connected with the feeding end of suspension prereduction device 2, the discharge end of suspension prereduction device 2
It is connected with the feeding end of sintering furnace 3, the discharge end of sintering furnace 3 is connected with the feeding end of suspension cooling device 5, suspension cooling device
5 discharge end is connected with the feeding end of surge bunker 4.
Described suspension prereduction device is multistage, is interconnected to constitute by levitation device；Previous stage input is input
End, the output end of previous stage and the input of rear stage connect, and the output end of rear stage is output end；Or previous stage is multiple
It is in parallel multiple with rear stage in parallel to be in series.
Described suspension cooling device is also interconnected to constitute by multiple levitation devices, and connected mode is mostly to connect.
Levitation device structure in per one-level is identical, including：Cyclone separator 11, inner cylinder 10, heat exchange pipeline 13 and blanking
Pipe 12；Inner cylinder 10 is connected with the upper end of cyclone separator 11, inner cylinder 10 is stretched in cyclone separator 11；In cyclone separator
11 lower end is connected with tremie pipe 12；Heat exchanger tube 13 is connected with the side on the top of cyclone separator 11, heat exchanger tube 13 enters
Mouth end is connected in the lower section of cyclone separator 11, and with next stage blanking pipe 15；One is also associated with heat exchanger tube 13
Level tremie pipe 14, the feeding end of upper level tremie pipe 14 dispose from the top down.
Dry method suspension sintering method：Lateritic nickel ore granular material is sent into the first order of suspension prereduction device through feeder,
The material fallen in suspension prereduction device meets with sintering furnace waste heat waste gas, and material absorbs heat and preheated, material oxidation
Thing and CO, H in flue gas2Deploy reduction reaction, lateritic nickel ore material preheats step by step and prereduction, the afterbody of suspension prereduction
Material enters sintering furnace, and sintering and reducing reaction occurs, and material enters suspension cooling device after sintering and reducing, and material cools down from suspending
The device first order enters, and with cold air mixed heat transfer, cools down step by step, the afterbody of suspension cooling device enters surge bunker（It is logical
Smelting link is transported to after crossing the metering of buffering orlop portion）；Cold air enters the first order of suspension cooling device, mixes and changes with thermal material
The afterbody of suspension cooling device is discharged into sintering furnace after heat, and the Flash Smelting Furnace discharge heat smoke for smelting link also enters sintering
Stove, the afterbody of suspension prereduction device is entered from sintering furnace discharge hot waste gas, waste gas cools step by step, CO, H in waste gas2
Amount is reduced step by step, the purified rear discharge of first order cooling waste gas of suspension prereduction device.
Embodiment of the present utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning
Same or similar element is represented to same or similar label eventually or there is the element of same or like function.Below by ginseng
The embodiment for examining accompanying drawing description is exemplary, it is intended to for explaining the utility model, and it is not intended that to the utility model
Limitation.
Embodiment 1：The device of the utility model embodiment is described in detail below：
Lateritic nickel ore dry method suspension sintering equipment, including feeder, suspension prereduction device, sintering furnace, suspension cooling dress
Put, surge bunker.
Levitation device includes cyclone separator, and cyclone separator is provided with tremie pipe, increase in pipeline, heat exchanger tube, inner cylinder.Specifically
As shown in Fig. 2 the material that upper level is fallen meets with the air-flow risen in heat exchange pipeline, material is dispelled by air-flow, fully dispersed
Gas-solid heat exchange is completed, material is carried along into cyclone separator completion material by air-flow and separated with air-flow, and material enters under lower section
Expects pipe mouth, and air-flow enters increase in pipeline from top.
It is further described with reference to embodiment.Accompanying drawing 1 is to implement schematic diagram, in the present embodiment, suspension prereduction dress
Put and be divided into three-level, lateritic nickel ore granular material is sent into the first order C1A and C1B of suspension prereduction device through feeder, enters successively
Enter second level C2A and C2B, the third level C3A and C3B, material preheats step by step and prereduction, and the material of third level suspension prereduction enters
Enter sintering furnace, occur sintering and reducing reaction, material sequentially enters the first order CL1 of suspension cooling device, the after sintering and reducing
Two level CL2, third level CL3 are cooled down, and material enters surge bunker from the third level after cooling（It is defeated after being measured by surge bunker bottom
Toward smelting link）.Cold air enters from the third level CL3 of suspension cooling device, successively by second level CL2 and first order CL1,
Cold air from the suspension cooling device first order after thermal material heat exchange with being discharged into sintering furnace, the Flash Smelting Furnace heat smoke of melting link
With also entering sintering furnace, suspension prereduction device third level C3A and C3B, the second level are sequentially entered from sintering furnace discharge hot waste gas
C2A and C2B, the first order C1A and C1B, air is discharged into from the gas of first order levitation device discharge is purified.
Claims (4)
1. lateritic nickel ore dry method suspension sintering equipment, it is characterised in that：Including feeder, suspension prereduction device, sintering furnace, slow
Rush storehouse, suspension cooling device；The output end of feeder is connected with the feeding end of suspension prereduction device, suspension prereduction device
The feeding end of discharge end and sintering furnace is connected, and the discharge end of sintering furnace is connected with the feeding end of suspension cooling device, and suspend cooling
The discharge end of device and the feeding end of surge bunker connect.
2. the lateritic nickel ore dry method suspension sintering equipment according to claims 1, it is characterised in that：Suspension prereduction device
For multistage, it is interconnected to constitute by levitation device；Previous stage input is input, the output end of previous stage and rear stage it is defeated
Enter end connection, the output end of rear stage is output end；Or previous stage in parallel multiple with rear stage in parallel is in series to be multiple.
3. the lateritic nickel ore dry method suspension sintering equipment according to claims 1, it is characterised in that：Suspension cooling device
It is interconnected to constitute by multiple levitation devices, connected mode is mostly to connect.
4. the lateritic nickel ore dry method suspension sintering equipment according to claims 2 or 3, it is characterised in that：In per one-level
Levitation device structure is identical, including：Cyclone separator, inner cylinder, heat exchange pipeline, tremie pipe increase in pipeline；On cyclone separator
Inner cylinder is connected with end, inner cylinder is stretched in cyclone separator；Tremie pipe is connected with the lower end of cyclone separator；In whirlwind point
Side from the top of device is connected with heat exchanger tube, the arrival end of heat exchanger tube in the lower section of cyclone separator, and with the gas of next stage
Stream increase in pipeline is connected；It is also associated with the tremie pipe of upper level on heat exchanger tube, the feeding end of the tremie pipe of upper level is from upper
Placement downwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720991309.0U CN207176035U (en) | 2017-08-09 | 2017-08-09 | A kind of lateritic nickel ore dry method suspension sintering equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720991309.0U CN207176035U (en) | 2017-08-09 | 2017-08-09 | A kind of lateritic nickel ore dry method suspension sintering equipment |
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| CN207176035U true CN207176035U (en) | 2018-04-03 |
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| CN201720991309.0U Expired - Fee Related CN207176035U (en) | 2017-08-09 | 2017-08-09 | A kind of lateritic nickel ore dry method suspension sintering equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110527848A (en) * | 2019-09-30 | 2019-12-03 | 青岛中资中程集团股份有限公司 | A kind of method of lateritic nickel ore Flash Smelting Furnace reduction melting production ferronickel |
-
2017
- 2017-08-09 CN CN201720991309.0U patent/CN207176035U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110527848A (en) * | 2019-09-30 | 2019-12-03 | 青岛中资中程集团股份有限公司 | A kind of method of lateritic nickel ore Flash Smelting Furnace reduction melting production ferronickel |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180403 Termination date: 20210809 |
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| CF01 | Termination of patent right due to non-payment of annual fee |