CN205980817U - System is used multipurposely to vertical cooling of sintering and pelletizing and sintering waste heat - Google Patents
System is used multipurposely to vertical cooling of sintering and pelletizing and sintering waste heat Download PDFInfo
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- CN205980817U CN205980817U CN201621012233.4U CN201621012233U CN205980817U CN 205980817 U CN205980817 U CN 205980817U CN 201621012233 U CN201621012233 U CN 201621012233U CN 205980817 U CN205980817 U CN 205980817U
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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
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Abstract
The utility model discloses a system is used multipurposely to vertical cooling of sintering and pelletizing and sintering waste heat, including the upright radiator, cooling blower, circulating fan, exhaust -heat boiler, turbine unit or generating set, cyclone, upright radiator upper portion is equipped with feed arrangement, the upright radiator middle part is equipped with the primary cooling section, the upright radiator lower part is equipped with the secondary cooling section, primary cooling section upper end is equipped with one section air outlet, primary cooling section lower extreme is equipped with one section air -supply line, secondary cooling section upper portion is equipped with the two -stage process air outlet, secondary cooling section lower part is equipped with the two -stage process air -supply line, secondary cooling section lower extreme is equipped with the discharge opening, one section air outlet is through connecting gradually exhaust -heat boiler, cyclone, circulating fan, one section air -supply line, exhaust -heat boiler passes through pipe connection turbine unit or generating set, cooling blower is connected to the two -stage process air -supply line, the sintering soaking zone of sintering machine is connected to the two -stage process air outlet. The utility model discloses cooling efficiency is high, the energy resource consumption is few, equipment operating stability is good.
Description
Technical field
This utility model is related to agglomerates of sintered pellets cooling device and sintering waste heat technical field of comprehensive utilization, more particularly, to a kind of
The vertical cooling of agglomerates of sintered pellets and sintering waste heat utilization system.
Background technology
Steel works sintering scale progressively expands, and leads to the yield of sintering deposit to increase sharply, and sintering system is to provide for blast furnace
The main equipment of quality raw materials, wherein, the cooling of sintering finished ores is the maximum bottleneck of impact sintering cost again.In steel market
In the case of weakness, energy-saving, high-efficiency environment friendly is the overriding concern of each steel mill.Research shows, Main Gas Flue of Sintering Machine cigarette
Gas waste heat accounts for the 13%～23% about of sintering circuit energy consumption, cooling machine waste gas waste heat account for sintering circuit energy consumption 19%～
35%, both sums are up to 50%, and the yield of theoretical secondary energy sources is 1.61GJ/ ton.It can be seen that, sintering plant waste heat recovery potentiality
Huge, the emphasis of recovery should be useless (cigarette) the gas waste heat of sintering and sintering mine sensible heat reclaims.
Cooling is one of important step of SINTERING PRODUCTION technique, for cool down sintered machine roasting and through single roll crusher break
Broken sintering mineral aggregate.At present, the cooling device of the commonly used sintering deposit of each big sintering plant is mainly blowing-type straight line cooler
With blowing-type circular cooler.No matter being belt cooling or ring type cooling in prior art, it is all that air blast is cold due to adopt
But, therefore, the utilization ratio of the air sent into by aerator directly affects the cooling effectiveness of cooler, in order to ensure cold air
Service efficiency, it is desirable to the space between pallet bottom and bellows is effectively sealed, prevents air from spilling from space between the two,
But the sealing effectiveness in the space between existing cooler pallet bottom and bellows is difficult to ensure that, there is air leak rate of air curtain height, wind
The amount problem that proportioning is big, power consumption is high；On the other hand, if the cooling effect that will have reached, the range ability of chassis wants long enough,
If chassis range ability is too short, mineral aggregate possibly cannot cool down completely, and the floor space of therefore belt or circular cooler is usual
Larger, not only manufacturing cost is high, and maintenance cost is also big.And existing cooler is high due to air leak rate of air curtain, in waste heat recovery process
In lead to waste heat supply temperature low, the thermal efficiency is low, and the electric energy of generation is few, cost of electricity-generating increase.Even some enterprises are cold by cooler
But low-temperature space gives up, and wind is directly outer to be arranged, and does not only result in poor working environment, also can pollute the disastrous effect of environment.
In order to overcome the defect of existing ring type or straight line cooler presence, market occurs in that vertical cooling device.As Shen
Please number for 201310419503.8, a kind of invention entitled Chinese invention patent application of vertical cooling kiln disclose a kind of vertical
Cooling kiln, its using air inlet mode centered on to wind and edge to wind facies combination by the way of to kiln body in blow, which by
Air channel and blast cap to be passed through in air intake, so windage is big, and air force cannot be adjusted, and will form the air channel close to air inlet
Air quantity is big, and the air channel volume away from air inlet is little, the heat displacement of final impact sintering deposit；Likewise, air outlet is vertical
The top one side of kiln, single air outlet, also form local air output greatly, local air output is little, leads to diverse location cooling effect
Have differences.Meanwhile, the making of air channel and blast cap and maintenance cost are high, and operating cost is high, and maintenance workload is big, and kiln age is short, no
Stable operation beneficial to sintering machine.
Patent No. 200910187381.8, the perpendicular pot type retracting device of invention entitled waste heat resources in sintering process and profit
Also disclose that a kind of vertical cooling tank body with the Chinese invention patent of mode, it is also adopted by the mode of center air intake, by air channel
With blast cap air intake, equally exist windage greatly and air force cannot be adjusted, air outlet local air output is different, cooling effect differs
The problem causing.And due to air inlet air channel no volume adjusting apparatus, intake cannot be adjusted, duct outlet one side air-out,
Easily form distinguished and admirable short circuit, cause Local cooling effect poor.And due to the accumulation of material at air channel, easily produce pressure measurement,
Air channel is damaged by pressure, and impact produces.Manufacturing cost is big, and difficult in maintenance, furnace life is short.
Application No. 201410280340.4, the invention entitled vertical helical distributary for sintering waste heat generating system are cold
But the Chinese invention patent application of heat-exchanger rig and its method discloses a kind of vertical cooling heat exchange device, and it is designed with the section that prestores
And cooling section, and discharging opening is slipped down to using material from focusing on by helical duct on helicoid, during gliding, due to
The frictional resistance of sintered material is big, easily causes the damage of spiral slide, and the blocking of material, once there is such situation, will
Systemic breakdown can be caused；Inlet and outlet is also the one side in this device, and air quantity cannot be adjusted, in the feelings that material charging quantity is not enough
Under condition, easily form the distinguished and admirable short circuit in local, be directly entered return air inlet, so causing blower fan electric current to increase, power consumption increases, cooling
The reduction of effect.Center air intake tube edges air outlet quantity is many, forms the weak link of air-out house steward, and air outlet easily enters little thing
Material, and increase the impact failure to caliber for the material.Cost of manufacture is big, and maintenance cost is high, is unfavorable for long-term operation.
Content of the invention
Goal of the invention：For prior art problem, this utility model purpose is to provide a kind of cooling effectiveness height, energy resource consumption
Less, the vertical cooling of the good agglomerates of sintered pellets of stable equipment operation and sintering waste heat utilization system.
To achieve these goals, this utility model employs following technical scheme：A kind of vertical cooling of agglomerates of sintered pellets
And sintering waste heat utilization system, including upright radiator, cooling blower, circulating fan, waste heat boiler, Steam Turbine or send out
Group of motors, cyclone dust extractor, upright radiator top is provided with feed arrangement, is provided with a cooling section in the middle part of upright radiator, stands
Formula cooler bottom is provided with cooling twice section, and a cooling section upper end is provided with one section of air outlet, and one time cooling section lower end is provided with one
Section blast pipe, cooling twice section top is provided with two-stage nitration air outlet, and cooling twice pars infrasegmentalis is provided with two-stage nitration blast pipe, cooling twice section
Lower end is provided with discharge port, and one section of air outlet is sequentially connected waste heat boiler, cyclone dust extractor, circulating fan, one section of blast pipe, waste heat
Boiler connects Steam Turbine or generating set by pipeline, and two-stage nitration blast pipe connects cooling blower, and two-stage nitration air outlet connects sintering
The sintered heat insulating section of machine.
Further, the connecting line of described one section of air outlet and waste heat boiler has been also respectively connected with diffuse channel, special
Pipeline A, pipe special A connect sintering ignition gas stove and air preheating system, described cyclone dust extractor and the circulation of sintering machine
The connecting line of blower fan is also associated with pipe special B, and air-cooler is converted in pipe special B connection.
Further, described feed arrangement includes inlet valve, and inlet valve upper end connects cooler charging aperture, inlet valve lower end
Connect bell.
Further, described feed arrangement connects feeding cart system.
Further, the lower section setting vibrosieve of described discharge port or star-shaped feeding machine, vibrosieve or star-shaped feeding machine
Lower section setting belt conveyor；The dust outlet of described cyclone dust extractor is provided with belt conveyor.
Further, described two-stage nitration blast pipe and the connecting line of cooling blower are provided with control valve A, and described one section is entered
The air outlet of airduct is provided with control valve B, and described diffuse channel is provided with control valve C, and described pipe special A is provided with regulation
Valve, described one section of air outlet is provided with control valve E, described cyclone dust extractor and circulated air with the connecting line of waste heat boiler
The connecting line of machine is provided with control valve F, and described pipe special B is provided with control valve G.
Beneficial effect：Upright radiator of the present utility model adopts upper feeding, the mode of bottom discharge, charging aperture setting material
Clock it is ensured that in charging process system air-tight state, simultaneously when sintering hot ore deposit and falling, glide along bell outer surface, sintering
Expect unlikely breakage；Due to its good airproof performance, no outer entrance of leaking out, make cooling air quantity in the case of minimizing air feed, high heating value
Maximize, be conducive to the greatest benefit of cogeneration；Cooling section air outlet can two-way or even multidirectional air-out, realize waste heat uniform
Reclaim, be conducive to sintering waste heat is made full use of；Discharge port quantity can change adjustment according to the size of sintering output, enters one
Step reduces the reliability of chiller whole height and discharge；This utility model vertical type cooling tower total system adopts lost pressure cooling,
Non-pollutant discharge, is conducive to environmental protection.
Brief description
Fig. 1 is the structural representation of this utility model embodiment one；
Fig. 2 is A-A profile in Fig. 1；
Fig. 3 is B-B profile in Fig. 1；
Fig. 4 is the structural representation of this utility model embodiment two；
In figure：1- upright radiator, mono- section of blast pipe of 1-1-, 1-2- two-stage nitration blast pipe, 1-3- discharge port, 1-4- feeds
Valve, 1-5- bell, mono- section of air outlet of 1-6-, 1-7- two-stage nitration air outlet, 1-8- cooler charging aperture, 1-9- feed arrangement, 1-10-
Cooling section, 1-11- cooling twice section, 2- cooling blower, 3- circulating fan, 4- waste heat boiler, 5- Steam Turbine or generating
Unit, 6- cyclone dust extractor, 7- pipeline, 8-1- control valve A, 8-2- control valve B, 8-3- control valve C, 8-4- regulating valve
Door D, 8-5- control valve E, 8-6- control valve F, 8-7- control valve G, 9- feeding cart system, 10- vibrosieve or star-like
Batcher, 11- belt conveyor, the sintered heat insulating section of 12- sintering machine, the sintering ignition gas stove of 13- sintering machine and air preheat
System, 14-1- pipe special A, 14-2- pipe special B, 15- convert air-cooler, and 16- diffuses pipeline.
Specific embodiment：
Below in conjunction with the accompanying drawings this utility model is done and further explain.
Embodiment one
As shown in Figures 1 to 3, a kind of agglomerates of sintered pellets of the present utility model is vertical cools down and sintering waste heat utilization system,
Including upright radiator 1, cooling blower 2, circulating fan 3, waste heat boiler 4, Steam Turbine or generating set 5, cyclone dust extractor
6.
Upright radiator 1 top is provided with feed arrangement 1-9, is provided with a cooling section 1-10 in the middle part of upright radiator 1, vertical
Cooler 1 bottom is provided with cooling twice section 1-11.Described feed arrangement 1-9 includes inlet valve 1-4, and inlet valve 1-4 upper end connects
Cooler charging aperture 1-8, inlet valve 1-4 lower end connects bell 1-5.One time cooling section 1-10 upper end is provided with one section of air outlet 1-6,
One time cooling section 1-10 lower end is provided with one section of blast pipe 1-1.Cooling twice section 1-11 top is provided with two-stage nitration air outlet 1-7, secondary
Cooling section 1-11 bottom is provided with two-stage nitration blast pipe 1-2, and cooling twice section 1-11 lower end is provided with discharge port 1-3.One section of air outlet 1-6
It is sequentially connected waste heat boiler 4, cyclone dust extractor 6,3, one section of blast pipe 1-1 of circulating fan, waste heat boiler 4 is connected by pipeline 7
Steam Turbine or generating set 5, two-stage nitration blast pipe 1-2 connects cooling blower 2, and two-stage nitration air outlet 1-7 connects the sintering of sintering machine
Soaking zone 12.
Described one section of air outlet 1-6 has been also respectively connected with diffuse channel 16, pipe special with the connecting line of waste heat boiler 4
A14-1, pipe special A14-1 connect sintering ignition gas stove and the air preheating system 13 of sintering machine, described cyclone dust extractor 6
It is also associated with pipe special B14-2 with the connecting line of circulating fan 3, air-cooler 15 is converted in pipe special B14-2 connection.
Described two-stage nitration blast pipe 1-2 is provided with control valve A8-1, described one section of air intake with the connecting line of cooling blower 2
The air outlet of pipe 1-1 is provided with control valve B8-2, and described diffuse channel 16 is provided with control valve C8-3, described pipe special
A14-1 is provided with control valve 8-4, and described one section of air outlet 1-6 is provided with control valve with the connecting line of waste heat boiler 4
E8-5, described cyclone dust extractor 6 is provided with control valve F8-6, described pipe special B14-2 with the connecting line of circulating fan 3
It is provided with control valve G8-7.
The material of system cooling passes through inlet valve, bell enters upright radiator, and material moves from top to bottom, passes sequentially through
One time cooling section, cooling twice section carry out heat exchange, and the cooling wind of two cooling sections all moves, after the completion of cooling from bottom to top
Material is discharged from discharge port.
The effect of cyclone dust extractor is the service life of protection circulating fan, reduces the loss of equipment.The going out of two-step cooling
Air port is connected with the sintered heat insulating section of sintering machine, carries out air quantity recovery using sintering the main exhauster of itself, such benefit is
Save the setting of cleaner unit, save cost of investment and the maintenance cost of sintering machine equipment again.Diffuse pipeline to be used for preventing
Waste heat boiler emergency maintenance.The effect of pipe special A is to provide thermal source to the igniting producer gas of sintering machine and air preheating system,
So both save coal gas, air preheat cost, provide the release of part energy again.
The steam of described waste heat boiler output is connected with generating set or steam turbine, and steam is connected steam with generating set
Heat energy is converted into electric energy, and steam is connected with steam turbine and for steam thermal energy to be converted into mechanical energy, and such energy-conservation saves self energy
Consume, efficiency of energy utilization can be improved again.
The pipeline that cyclone dust extractor is connected with circulating fan passes through pipe special B connection and converts air-cooler, is used for blasting in right amount
Cold wind and mix with high-temperature flue gas, prevent refrigerant material temperature from spending height, reach in advance cool down material purpose.
In order to reduce the reliability of chiller whole height and discharge further, the bottom of upright radiator is provided with 2
And above discharge port, discharge port quantity can change adjustment according to the size of sintering output, and the present embodiment only provides this knot of 2x2
Configuration formula, is also not necessarily limited to this form certainly.The benefit arranging multiple discharge ports is to be changed to original one-to-one excessive pattern
Multipair multi-mode, shortens the distance of changeover portion.
Taking sintering machine hourly output 420t/h as a example, temperature of charge is 650～700 DEG C, material requirement is cooled to 100～
150 DEG C, flue-gas temperature meets the requirement of the heat-exchange apparatus such as waste heat boiler, and according to the requirement of technique and yield, the present embodiment exists
One section of air inlet puts into the room temperature air quantity of 450,000 m3/h, and material is cooled to 200～250 DEG C, and the pathogenic wind-warm of generation is 380～500 DEG C
High-temperature flue gas, high-temperature flue gas meet the requirement of the heat-exchange apparatus such as waste heat boiler.Put into the normal of 110,000 m3/h in two-stage nitration air inlet
Warm air amount, material is cooled to 100～150 DEG C, and low-temperature material meets process equipment requirement.
Embodiment two
As shown in figure 4, embodiment two is with the difference of embodiment one, described feed arrangement 1-9 connects feeding cart system
System 9.In addition, the lower section setting vibrosieve of described discharge port 1-3 or star-shaped feeding machine 10, under vibrosieve or star-shaped feeding machine 10
Side's setting belt conveyor 11；The dust outlet of described cyclone dust extractor 6 is provided with belt conveyor 11.
By feeding cart system, material is sent into the cooler charging aperture of feed arrangement from ground, simultaneously under discharge port
Side's setting vibrosieve or star-shaped feeding machine, for controlling the discharge of materials after cooling, the lower section of vibrosieve or star-shaped feeding machine sets
Put belt conveyor, to meet the various demands of technique conveying.
The above is only preferred implementation of the present utility model it is noted that common skill for the art
For art personnel, on the premise of without departing from this utility model principle, some improvements and modifications can also be made, these improve and
Retouching also should be regarded as protection domain of the present utility model.
Claims (6)
1. a kind of vertical cooling of agglomerates of sintered pellets and sintering waste heat utilization system it is characterised in that：Including upright radiator
(1), cooling blower (2), circulating fan (3), waste heat boiler (4), Steam Turbine or generating set (5), cyclone dust extractor (6),
Upright radiator (1) top is provided with feed arrangement (1-9), is provided with a cooling section (1-10) in the middle part of upright radiator (1), vertical
Cooler (1) bottom is provided with cooling twice section (1-11), and cooling section (1-10) upper end is provided with one section of air outlet (1-6), and one
Secondary cooling section (1-10) lower end is provided with one section of blast pipe (1-1), and cooling twice section (1-11) top is provided with two-stage nitration air outlet (1-
7), cooling twice section (1-11) bottom is provided with two-stage nitration blast pipe (1-2), and cooling twice section (1-11) lower end is provided with discharge port (1-
3), one section of air outlet (1-6) is sequentially connected waste heat boiler (4), cyclone dust extractor (6), circulating fan (3), one section of blast pipe (1-
1), waste heat boiler (4) connects Steam Turbine or generating set (5) by pipeline (7), and two-stage nitration blast pipe (1-2) connects cooling wind
Machine (2), two-stage nitration air outlet (1-7) connects the sintered heat insulating section (12) of sintering machine.
2. a kind of agglomerates of sintered pellets according to claim 1 is vertical cools down and sintering waste heat utilization system, and its feature exists
In：Described one section of air outlet (1-6) has been also respectively connected with diffuse channel (16), dedicated pipe with the connecting line of waste heat boiler (4)
Road A (14-1), pipe special A (14-1) connect sintering ignition gas stove and the air preheating system (13) of sintering machine, described rotation
Wind cleaner unit (6) is also associated with pipe special B (14-2) with the connecting line of circulating fan (3), and pipe special B (14-2) connects
Convert air-cooler (15).
3. a kind of agglomerates of sintered pellets according to claim 2 is vertical cools down and sintering waste heat utilization system, and its feature exists
In：Described feed arrangement (1-9) includes inlet valve (1-4), and inlet valve (1-4) upper end connects cooler charging aperture (1-8), charging
Valve (1-4) lower end connects bell (1-5).
4. a kind of agglomerates of sintered pellets according to claim 3 is vertical cools down and sintering waste heat utilization system, and its feature exists
In：Described feed arrangement (1-9) connects feeding cart system (9).
5. a kind of agglomerates of sintered pellets according to claim 4 is vertical cools down and sintering waste heat utilization system, and its feature exists
In：The lower section setting vibrosieve of described discharge port (1-3) or star-shaped feeding machine (10), under vibrosieve or star-shaped feeding machine (10)
Side's setting belt conveyor (11)；The dust outlet of described cyclone dust extractor (6) is provided with belt conveyor (11).
6. a kind of agglomerates of sintered pellets according to claim 5 is vertical cools down and sintering waste heat utilization system, and its feature exists
In：Described two-stage nitration blast pipe (1-2) is provided with control valve A (8-1) with the connecting line of cooling blower (2), and described one section is entered
The air outlet of airduct (1-1) is provided with control valve B (8-2), and described diffuse channel (16) is provided with control valve C (8-3), described
Pipe special A (14-1) is provided with control valve (8-4), the connecting line of described one section of air outlet (1-6) and waste heat boiler (4)
It is provided with control valve E (8-5), described cyclone dust extractor (6) is provided with control valve F with the connecting line of circulating fan (3)
(8-6), described pipe special B (14-2) is provided with control valve G (8-7).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621012233.4U CN205980817U (en) | 2016-08-29 | 2016-08-29 | System is used multipurposely to vertical cooling of sintering and pelletizing and sintering waste heat |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621012233.4U CN205980817U (en) | 2016-08-29 | 2016-08-29 | System is used multipurposely to vertical cooling of sintering and pelletizing and sintering waste heat |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106225487A (en) * | 2016-08-29 | 2016-12-14 | 大峘集团有限公司 | A kind of vertical cooling of agglomerates of sintered pellets and sintering waste heat utilization system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106225487A (en) * | 2016-08-29 | 2016-12-14 | 大峘集团有限公司 | A kind of vertical cooling of agglomerates of sintered pellets and sintering waste heat utilization system |
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