CN207091450U - A kind of energy comprehensive utilization system of smelting in rotary kiln sponge iron - Google Patents
A kind of energy comprehensive utilization system of smelting in rotary kiln sponge iron Download PDFInfo
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- CN207091450U CN207091450U CN201720389156.2U CN201720389156U CN207091450U CN 207091450 U CN207091450 U CN 207091450U CN 201720389156 U CN201720389156 U CN 201720389156U CN 207091450 U CN207091450 U CN 207091450U
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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
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Abstract
The utility model is a kind of energy comprehensive utilization system of smelting in rotary kiln sponge iron, and system includes feeding system, reduces and use rotary kiln, crushing-magnetic selection system, dust pelletizing system and WHRS with rotary kiln, central burner system, cooling.The air hose of the reduction rotary kiln has 8 and is distributed on the kiln of the reduction rotary kiln, the air hose of the reduction rotary kiln is furnished with single blowing device, air nozzle is connected with air pipe outlets, the reduction is in charge of with the kiln hood of rotary kiln provided with duff, the reduction has rough coal to be in charge of to stretching inside kiln body with the kiln hood of rotary kiln, and the rough coal is in charge of 30% 60% that the length stretched into accounts for kiln body length.The utility model reduction is more uniform with kiln temperature distribution, is not easy ring formation, and reaction is more steady controllable；In order to improve energy utilization rate, energy consumption is reduced, has increased WHRS, energy-conserving and environment-protective newly.
Description
Technical field
It the utility model is related to smelting in rotary kiln sponge iron field, more particularly to a kind of energy of smelting in rotary kiln sponge iron
Utilization system.
Background technology
Sponge iron is also known as DRI, can use lump ore, pellet, fine ore, its iron ore grade can as little as 42% or so,
Using principle of oxidation and reduction, in rotary kiln, shaft furnace or other reactors, with coal, coke, natural gas or hydrogen, make iron
Ore or iron ore pellets carry out low-temperature reduction under conditions of less than material melting temperature, the cellular product become.Sponge
The objectionable impurities such as sulphur, phosphorus and non-ferrous metal content are low in iron, are mainly used in the raw material of electric furnace steel making, especially as high-quality steel,
The raw material of clean steel.
The country's 8 production lines of built Dr Kiln.Using rotary kiln technology, mechanization degree is higher, work
Intensity is relatively low.But in production process, the structure of rotary kiln is more single, and coal feed point is only defined at kiln hood, enters coal mode excessively
It is single, it can thus be prone to ring formation failure, product quality is not high, division in product rate is high so as to causing, production efficiency is relatively low,
The shortcomings such as the thermal efficiency is low, at the same in technical process caused useless dirt and used heat secondary use it is inefficient.Overwhelming majority production
Therefore line is substantially at end-of-life state.
The content of the invention
The utility model aims to solve the problem that the deficiencies in the prior art, and provides a kind of Integrated Energy of smelting in rotary kiln sponge iron
Utilize system.
The utility model to achieve the above object, using following technical scheme：
A kind of energy comprehensive utilization system of smelting in rotary kiln sponge iron, including feeding system, reduction rotary kiln, center
Rotary kiln, crushing-magnetic selection system, dust pelletizing system and WHRS, the feeding system and institute are used in buner system, cooling
State reduction with the loading hopper of the kiln tail of rotary kiln to be connected, the discharge bucket of the reduction rotary kiln and the cooling rotary kiln
Feeding mouth is connected, and reduction rotary kiln includes using close to the preheating zone of kiln tail and close to the reducing zone of kiln hood, the reduction
8 air hoses are laid with rotary kiln, air nozzle is provided with the air pipe outlets, the reduction rotary kiln
Air hose is furnished with single blowing device, and the blowing device is fixed on the kiln of the reduction rotary kiln, the center
Buner system is connected with igniting pipeline, and the igniting pipeline is located at reduction with rotary kiln end, the reduction rotary kiln
It is in charge of at kiln hood provided with duff, the reduction has rough coal to be in charge of to stretching inside kiln body with the kiln hood of rotary kiln, and the rough coal is in charge of
The length stretched into accounts for the 30%-60% of kiln body length, waste gas outlet and the dust pelletizing system of the reduction rotary kiln
It is connected, the air outlet of the dust pelletizing system is connected with the WHRS, the discharging opening of the cooling rotary kiln and institute
State crushing-magnetic selection system to be connected, the cooling is exported with the cooling water of rotary kiln to be connected with the WHRS.
The feeding system includes three groups of warehouses, three Sets of Measurement pneumatic conveyors and blending bunker, three groups of warehouses respectively and
Three Sets of Measurement pneumatic conveyors are connected, and three Sets of Measurement pneumatic conveyors are connected with the blending bunker, the blending bunker with
The reduction is connected with the loading hopper of rotary kiln.
The crushing-magnetic selection system is roused using permanent magnetism, a diameter of 900mm, a width of 1600mm, and inside is equipped with ceramic permanent-magnet body；
The dust pelletizing system includes ash fall room, the ash fall room and the waste gas outlet phase of the reduction rotary kiln
Even, the ash fall room is connected with scrapper conveyor.
The WHRS includes waste heat boiler and turbogenerator, and the waste heat boiler includes three passages, the
One passage only has membranous wall, and there is second channel membranous wall, superheater and evaporator beam, third channel to have membranous wall and economizer
Beam；The steam (vapor) outlet of the waste heat boiler is connected with the turbogenerator.
The beneficial effects of the utility model are：The utility model device is simple, and easily operation, has higher economic benefit,
With stronger competitiveness.And reduction is more uniform with kiln temperature distribution, ring formation is not easy, reaction is more steady controllable；
In order to improve energy utilization rate, energy consumption is reduced, has increased WHRS, energy-conserving and environment-protective newly.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the detail drawing of reduction rotary kiln overhead duct portion；
In figure：1- reduction rotary kilns；2- central burner systems；3- cooling rotary kilns；4- crushing-magnetic selection systems；5-
Warehouse；6- measures pneumatic conveyor；7- blending bunkers；8- blowing devices；9- air nozzles；10- rough coals are in charge of；11- duffs point
Pipe；12- ash falls room；13- scrapper conveyors；14- waste heat boilers；15- turbogenerators；16- air hoses；
It is described in detail referring to the drawings below with reference to embodiment of the present utility model.
Embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples：
Specific embodiment 1：
As depicted in figs. 1 and 2, a kind of energy comprehensive utilization system of smelting in rotary kiln sponge iron, including feeding system, also
Rotary kiln 3, crushing-magnetic selection system 4, dust pelletizing system and Waste Heat Recovery system are used in original rotary kiln 1, central burner system 2, cooling
System, the feeding system are connected with the reduction with the loading hopper of the kiln tail of rotary kiln 1, the discharging of the reduction rotary kiln 1
Bucket is connected with the cooling with the feeding mouth of rotary kiln 3, and reduction rotary kiln 1 includes the preheating zone of close kiln tail and close
The reducing zone of kiln hood, the kiln of reduction rotary kiln 1 are laid with 8 air hoses 16 with it, and the exit of air hose 16 is set
There is air nozzle 9, the reduction is furnished with single blowing device 8 with the air hose 16 of rotary kiln 1, and the blowing device 8 is fixed
With kiln of the reduction with rotary kiln 1, the central burner system 2 is connected with igniting pipeline, and the igniting pipeline is located at
Reduction is with the kiln hood of rotary kiln 1, and the reduction is in charge of 11 with the kiln hood of rotary kiln 1 provided with duff, and rotary kiln 1 is used in the reduction
Kiln hood there is rough coal to be in charge of 10 to stretching inside kiln body, the rough coal is in charge of 10 length stretched into and accounts for the 30% of kiln body length, described
Reduction is connected with the waste gas outlet of the kiln tail of rotary kiln 1 with the dust pelletizing system, the air outlet of the dust pelletizing system and the used heat
Recovery system is connected, and the cooling is connected with the discharging opening of rotary kiln 3 with the crushing-magnetic selection system 4, the cooling revolution
The cooling water outlet of kiln 3 is connected with the WHRS.
The feeding system includes three groups of warehouses 5, three Sets of Measurement pneumatic conveyors 6 and blending bunker 7, and three groups of warehouses 5 divide
It is not connected with three Sets of Measurement pneumatic conveyors 6, three Sets of Measurement pneumatic conveyors 6 are connected with the blending bunker 7, described mixed
Feed bin 7 is connected with the reduction with the loading hopper of the kiln tail of rotary kiln 1.
The crushing-magnetic selection system 4 is roused using permanent magnetism, a diameter of 900mm, a width of 1600mm, and inside is equipped with ceramic permanent-magnet
Body；The dust pelletizing system includes ash fall room 12, the ash fall room 12 and the waste gas of the reduction kiln tail of rotary kiln 1
Outlet is connected, and the ash fall room 12 is connected with scrapper conveyor 13.
The WHRS includes waste heat boiler 14 and turbogenerator 15, and the waste heat boiler 14 includes three and led to
Road, first passage only have membranous wall, and there is second channel membranous wall, superheater and evaporator beam, third channel to have membranous wall and province
Coal device beam；The steam (vapor) outlet of the waste heat boiler 14 is connected with the turbogenerator 15.
Using the production technology of the energy comprehensive utilization system of above-mentioned smelting in rotary kiln sponge iron, concretely comprise the following steps：
A, the iron ore concentrate from stock ground, dolomite, coal, the three Sets of Measurement pneumatic conveyors 6 into feeding system are carried out
Metering, iron ore concentrate, dolomite and 50% coal measured fully enter blending bunker 7 and are sufficiently mixed；
B, the compound after blending bunker 7 is sufficiently mixed enters from the loading hopper of the kiln tail of reduction rotary kiln 1, remains simultaneously
50% remaining coal is added also by reduction with the kiln hood of rotary kiln 1, and the rough coal that wherein rough coal passes through at kiln hood is in charge of 10 and entered
Enter reduction with combustion heat supplying is carried out at the 30% of the kiln body of rotary kiln 1, duff is in charge of 11 by duff and burnt at kiln hood
Heat supply, igniting pipeline of the central burner system 2 at kiln hood only when running beginning, with combustion gas and air burning, play a little
The effect of fire；
Compound initially enters the preheating zone of reduction rotary kiln 1, is heated to reaction temperature, moisture, white clouds in material
CO in stone2With the volatile component in coal, the upper space into reduction with rotary kiln 1, reducing atmosphere is formed, is then mixed
Material is reduced into the reducing zone of reduction rotary kiln 1, iron ore concentrate by CO, forms iron simple substance；During air by reduction use back
The air hose 16 and air nozzle 9 of rotary kiln 1 enter, and heat is provided to reaction；
C, the high temperature material after reduction is reduced with rotary kiln 1 is cooled down into cooling with rotary kiln 3, and the type of cooling is adopted
With external-cooling type, ensure that water is kept completely separate with sponge iron；Sponge iron is screened into crushing-magnetic selection system 4, obtains qualified sea
Continuous iron is simultaneously stored in product warehouse；
D, reduction waste gas caused by rotary kiln 1 is introduced into ash fall room 12, and dust is by sedimentation finally by scrapper conveyor
13 discharges；
E, waste gas enters the progress second-time burning of waste heat boiler 14 after handling, and cooling is supplied to the cooling water of rotary kiln 3
Moisture needed for waste heat boiler 14, steam caused by waste heat boiler 14 are generated electricity into turbogenerator 15.
Specific embodiment 2：
As depicted in figs. 1 and 2, a kind of energy comprehensive utilization system of smelting in rotary kiln sponge iron, including feeding system, also
Rotary kiln 3, crushing-magnetic selection system 4, dust pelletizing system and Waste Heat Recovery system are used in original rotary kiln 1, central burner system 2, cooling
System, the feeding system are connected with the reduction with the loading hopper of the kiln tail of rotary kiln 1, the discharging of the reduction rotary kiln 1
Bucket is connected with the cooling with the feeding mouth of rotary kiln 3, and reduction rotary kiln 1 includes the preheating zone of close kiln tail and close
The reducing zone of kiln hood, the kiln of reduction rotary kiln 1 are laid with 8 air hoses 16 with it, and the exit of air hose 16 is set
There is air nozzle 9, the reduction is furnished with single blowing device 8 with the air hose 16 of rotary kiln 1, and the blowing device 8 is fixed
With kiln of the reduction with rotary kiln 1, the central burner system 2 is connected with igniting pipeline, and the igniting pipeline is located at
Reduction is with the kiln hood of rotary kiln 1, and the reduction is in charge of 11 with the kiln hood of rotary kiln 1 provided with duff, and rotary kiln 1 is used in the reduction
Kiln hood there is rough coal to be in charge of 10 to stretching inside kiln body, the rough coal is in charge of 10 length stretched into and accounts for the 60% of kiln body length, described
Reduction is connected with the waste gas outlet of the kiln tail of rotary kiln 1 with the dust pelletizing system, the air outlet of the dust pelletizing system and the used heat
Recovery system is connected, and the cooling is connected with the discharging opening of rotary kiln 3 with the crushing-magnetic selection system 4, the cooling revolution
The cooling water outlet of kiln 3 is connected with the WHRS.
The crushing-magnetic selection system 4 is roused using permanent magnetism, a diameter of 900mm, a width of 1600mm, and inside is equipped with ceramic permanent-magnet
Body；The dust pelletizing system includes ash fall room 12, the ash fall room 12 and the waste gas of the reduction kiln tail of rotary kiln 1
Outlet is connected, and the ash fall room 12 is connected with scrapper conveyor 13.
The WHRS includes waste heat boiler 14 and turbogenerator 15, and the waste heat boiler 14 includes three and led to
Road, first passage only have membranous wall, and there is second channel membranous wall, superheater and evaporator beam, third channel to have membranous wall and province
Coal device beam；The steam (vapor) outlet of the waste heat boiler 14 is connected with the turbogenerator 15.
Using the production technology of the energy comprehensive utilization system of above-mentioned smelting in rotary kiln sponge iron, concretely comprise the following steps：
A, the iron ore concentrate from stock ground, dolomite, coal, the three Sets of Measurement pneumatic conveyors 6 into feeding system are carried out
Metering, iron ore concentrate, dolomite and 70% coal measured fully enter blending bunker 7 and are sufficiently mixed；
B, the compound after blending bunker 7 is sufficiently mixed enters from the loading hopper of the kiln tail of reduction rotary kiln 1, remains simultaneously
30% remaining coal is added also by reduction with the kiln hood of rotary kiln 1, and the rough coal that wherein rough coal passes through at kiln hood is in charge of 10 and entered
Enter reduction with combustion heat supplying is carried out at the 60% of the kiln body of rotary kiln 1, duff is in charge of 11 by duff and burnt at kiln hood
Heat supply, igniting pipeline of the central burner system 2 at kiln hood only when running beginning, with combustion gas and air burning, play a little
The effect of fire；
Compound initially enters the preheating zone of reduction rotary kiln 1, is heated to reaction temperature, moisture, white clouds in material
CO in stone2With the volatile component in coal, the upper space into reduction with rotary kiln 1, reducing atmosphere is formed, is then mixed
Material is reduced into the reducing zone of reduction rotary kiln 1, iron ore concentrate by CO, forms iron simple substance；During air by reduction use back
The air hose 16 and air nozzle 9 of rotary kiln 1 enter, and heat is provided to reaction；
C, the high temperature material after reduction is reduced with rotary kiln 1 is cooled down into cooling with rotary kiln 3, and the type of cooling is adopted
With external-cooling type, ensure that water is kept completely separate with sponge iron；Sponge iron is screened into crushing-magnetic selection system 4, obtains qualified sea
Continuous iron is simultaneously stored in product warehouse；
D, reduction waste gas caused by rotary kiln 1 is introduced into ash fall room 12, and dust is by sedimentation finally by scrapper conveyor
13 discharges；
E, waste gas enters the progress second-time burning of waste heat boiler 14 after handling, and cooling is supplied to the cooling water of rotary kiln 3
Moisture needed for waste heat boiler 14, steam caused by waste heat boiler 14 are generated electricity into turbogenerator 15.
Specific embodiment 3：
As depicted in figs. 1 and 2, a kind of energy comprehensive utilization system of smelting in rotary kiln sponge iron, including feeding system, also
Rotary kiln 3, crushing-magnetic selection system 4, dust pelletizing system and Waste Heat Recovery system are used in original rotary kiln 1, central burner system 2, cooling
System, the feeding system are connected with the reduction with the loading hopper of the kiln tail of rotary kiln 1, the discharging of the reduction rotary kiln 1
Bucket is connected with the cooling with the feeding mouth of rotary kiln 3, and reduction rotary kiln 1 includes the preheating zone of close kiln tail and close
The reducing zone of kiln hood, the kiln of reduction rotary kiln 1 are laid with 8 air hoses 16 with it, and the exit of air hose 16 is set
There is air nozzle 9, the reduction is furnished with single blowing device 8 with the air hose 16 of rotary kiln 1, and the blowing device 8 is fixed
With kiln of the reduction with rotary kiln 1, the central burner system 2 is connected with igniting pipeline, and the igniting pipeline is located at
Reduction is with the kiln hood of rotary kiln 1, and the reduction is in charge of 11 with the kiln hood of rotary kiln 1 provided with duff, and rotary kiln 1 is used in the reduction
Kiln hood there is rough coal to be in charge of 10 to stretching inside kiln body, the rough coal is in charge of 10 length stretched into and accounts for the 50% of kiln body length, described
Reduction is connected with the waste gas outlet of the kiln tail of rotary kiln 1 with the dust pelletizing system, the air outlet of the dust pelletizing system and the used heat
Recovery system is connected, and the cooling is connected with the discharging opening of rotary kiln 3 with the crushing-magnetic selection system 4, the cooling revolution
The cooling water outlet of kiln 3 is connected with the WHRS.
The feeding system includes three groups of warehouses 5, three Sets of Measurement pneumatic conveyors 6 and blending bunker 7, and three groups of warehouses 5 divide
It is not connected with three Sets of Measurement pneumatic conveyors 6, three Sets of Measurement pneumatic conveyors 6 are connected with the blending bunker 7, described mixed
Feed bin 7 is connected with the reduction with the loading hopper of the kiln tail of rotary kiln 1.
The crushing-magnetic selection system 4 is roused using permanent magnetism, a diameter of 900mm, a width of 1600mm, and inside is equipped with ceramic permanent-magnet
Body；The dust pelletizing system includes ash fall room 12, the ash fall room 12 and the waste gas of the reduction kiln tail of rotary kiln 1
Outlet is connected, and the ash fall room 12 is connected with scrapper conveyor 13.
The WHRS includes waste heat boiler 14 and turbogenerator 15, and the waste heat boiler 14 includes three and led to
Road, first passage only have membranous wall, and there is second channel membranous wall, superheater and evaporator beam, third channel to have membranous wall and province
Coal device beam；The steam (vapor) outlet of the waste heat boiler 14 is connected with the turbogenerator 15.
Using the production technology of the energy comprehensive utilization system of above-mentioned smelting in rotary kiln sponge iron, concretely comprise the following steps：
A, the iron ore concentrate from stock ground, dolomite, coal, the three Sets of Measurement pneumatic conveyors 6 into feeding system are carried out
Metering, iron ore concentrate, dolomite and 60% coal measured fully enter blending bunker 7 and are sufficiently mixed；
B, the compound after blending bunker 7 is sufficiently mixed enters from the loading hopper of the kiln tail of reduction rotary kiln 1, remains simultaneously
40% remaining coal is added also by reduction with the kiln hood of rotary kiln 1, and the rough coal that wherein rough coal passes through at kiln hood is in charge of 10 and entered
Enter reduction with combustion heat supplying is carried out at the 50% of the kiln body of rotary kiln 1, duff is in charge of 11 by duff and burnt at kiln hood
Heat supply, igniting pipeline of the central burner system 2 at kiln hood only when running beginning, with combustion gas and air burning, play a little
The effect of fire
Compound initially enters the preheating zone of reduction rotary kiln 1, is heated to reaction temperature, moisture, white clouds in material
CO in stone2With the volatile component in coal, the upper space into reduction with rotary kiln 1, reducing atmosphere is formed, is then mixed
Material is reduced into the reducing zone of reduction rotary kiln 1, iron ore concentrate by CO, forms iron simple substance；During air by reduction use back
The air hose 16 and air nozzle 9 of rotary kiln 1 enter, and heat is provided to reaction；
C, the high temperature material after reduction is reduced with rotary kiln 1 is cooled down into cooling with rotary kiln 3, and the type of cooling is adopted
With external-cooling type, ensure that water is kept completely separate with sponge iron；Sponge iron is screened into crushing-magnetic selection system 4, obtains qualified sea
Continuous iron is simultaneously stored in product warehouse；
D, reduction waste gas caused by rotary kiln 1 is introduced into ash fall room 12, and dust is by sedimentation finally by scrapper conveyor
13 discharges；
E, waste gas enters the progress second-time burning of waste heat boiler 14 after handling, and cooling is supplied to the cooling water of rotary kiln 3
Moisture needed for waste heat boiler 14, steam caused by waste heat boiler 14 are generated electricity into turbogenerator 15.
The utility model improves the setting of the charging aperture of coal in reduction rotary kiln 1, sets up rough coal in kiln hood and is in charge of 10
Be in charge of 11 with duff, original 100% coal added in kiln hood, be changed to 50-70% coal through kiln tail by the pattern of batch mixing with
Smart iron ore, dolomite are added together, and remaining 30-50% coal is added by kiln hood, and the rough coal in this part coal is by rough coal point
10 are in charge of 11 by duff and are entered at kiln hood into reduction with combustion heat supplying, duff is carried out at the 30%-60% of rotary kiln body
Row combustion heat supplying；Air nozzle 9 is used together with air hose 16, improves the control to burning.Air hose 16 is mended as burning
Device of air, it is evenly arranged along kiln body, has reached the control to being burnt in kiln, while every air hose 16 is set equipped with individually air-supply
Standby 8, cocurrent is carried out with the atmosphere in kiln, forms eddy currents.Pass through the change to reduction with the energy input port of rotary kiln 1, solution
Determine kiln temperature skewness, the problems such as easily causing ring formation, the temperature in whole kiln is realized multiple spot controllable, uniformly point
Cloth.In order to improve energy utilization rate, energy consumption is reduced, has increased WHRS, energy-conserving and environment-protective newly.
The utility model is exemplarily described above in conjunction with accompanying drawing, it is clear that the utility model specific implementation not by
The limitation of aforesaid way, if the various improvement that methodology and technical scheme of the present utility model are carried out are employed, or without
Improvement directly applies to other occasions, within the scope of protection of the utility model.
Claims (4)
1. a kind of energy comprehensive utilization system of smelting in rotary kiln sponge iron, including feeding system, reduction rotary kiln (1), in
Rotary kiln (3), crushing-magnetic selection system (4), dust pelletizing system and WHRS, its feature are used in heart buner system (2), cooling
It is, the feeding system is connected with the reduction with the loading hopper of the kiln tail of rotary kiln (1), and rotary kiln (1) is used in the reduction
Discharge bucket be connected with the cooling with the feeding mouth of rotary kiln (3), reduction rotary kiln (1) includes the pre- of close kiln tail
Hot-zone and the reducing zone of close kiln hood, reduction rotary kiln (1) kiln are laid with 8 air hoses (16), the sky with it
Tracheae (16) exit is provided with air nozzle (9), and the air hose (16) of the reduction rotary kiln (1) is set equipped with individually air-supply
Standby (8), the blowing device (8) are fixed on the kiln of the reduction rotary kiln (1), the central burner system (2)
It is connected with igniting pipeline, the igniting pipeline be located at reduction with rotary kiln (1) kiln hood, the reduction kiln hood of rotary kiln (1)
Place is in charge of (11) provided with duff, and the reduction has rough coal to be in charge of (10) to stretching inside kiln body with the kiln hood of rotary kiln (1), it is described slightly
Coal is in charge of the 30%-60% that the length (10) stretched into accounts for kiln body length, the reduction with the waste gas outlet of rotary kiln (1) kiln tail with
The dust pelletizing system is connected, and the air outlet of the dust pelletizing system is connected with the WHRS, the cooling rotary kiln
(3) discharging opening is connected with the crushing-magnetic selection system (4), the cooling with the outlet of the cooling water of rotary kiln (3) with it is described
WHRS is connected.
A kind of 2. energy comprehensive utilization system of smelting in rotary kiln sponge iron according to claim 1, it is characterised in that institute
Stating feeding system includes three groups of warehouses (5), three Sets of Measurement pneumatic conveyors (6) and blending bunker (7), and three groups of warehouses (5) are respectively
It is connected with three Sets of Measurement pneumatic conveyors (6), three Sets of Measurement pneumatic conveyors (6) are connected with the blending bunker (7), institute
Blending bunker (7) is stated with the reduction with the loading hopper of rotary kiln (1) kiln tail to be connected.
A kind of 3. energy comprehensive utilization system of smelting in rotary kiln sponge iron according to claim 2, it is characterised in that institute
State crushing-magnetic selection system (4) to rouse using permanent magnetism, a diameter of 900mm, a width of 1600mm, inside are equipped with ceramic permanent-magnet body；It is described to remove
Dirt system includes ash fall room (12), and the ash fall room (12) and the waste gas of reduction rotary kiln (1) kiln tail go out
Mouth is connected, and the ash fall room (12) is connected with scrapper conveyor (13).
A kind of 4. energy comprehensive utilization system of smelting in rotary kiln sponge iron according to claim 3, it is characterised in that institute
Stating WHRS includes waste heat boiler (14) and turbogenerator (15), and the waste heat boiler (14) includes three passages,
First passage only has membranous wall, and there is second channel membranous wall, superheater and evaporator beam, third channel to have membranous wall and economizer
Beam；The steam (vapor) outlet of the waste heat boiler (14) is connected with the turbogenerator (15).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720389156.2U CN207091450U (en) | 2017-04-14 | 2017-04-14 | A kind of energy comprehensive utilization system of smelting in rotary kiln sponge iron |
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| CN201720389156.2U CN207091450U (en) | 2017-04-14 | 2017-04-14 | A kind of energy comprehensive utilization system of smelting in rotary kiln sponge iron |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107201420A (en) * | 2017-04-14 | 2017-09-26 | 爱润森德（天津）能源科技有限公司 | The energy comprehensive utilization system and its production technology of a kind of smelting in rotary kiln sponge iron |
| CN110000396A (en) * | 2019-04-09 | 2019-07-12 | 兰州有色冶金设计研究院有限公司 | A kind of reduction apparatus and method of fine iron breeze production reduced iron powder |
| CN118310325A (en) * | 2024-06-07 | 2024-07-09 | 沈阳铝镁设计研究院有限公司 | System and method for recovering heat of calcined high-temperature material of rotary kiln |
-
2017
- 2017-04-14 CN CN201720389156.2U patent/CN207091450U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107201420A (en) * | 2017-04-14 | 2017-09-26 | 爱润森德（天津）能源科技有限公司 | The energy comprehensive utilization system and its production technology of a kind of smelting in rotary kiln sponge iron |
| CN110000396A (en) * | 2019-04-09 | 2019-07-12 | 兰州有色冶金设计研究院有限公司 | A kind of reduction apparatus and method of fine iron breeze production reduced iron powder |
| CN118310325A (en) * | 2024-06-07 | 2024-07-09 | 沈阳铝镁设计研究院有限公司 | System and method for recovering heat of calcined high-temperature material of rotary kiln |
| CN118310325B (en) * | 2024-06-07 | 2024-09-06 | 沈阳铝镁设计研究院有限公司 | Method for recovering heat of calcined high-temperature material of rotary kiln |
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