CN109341350A - A method of improving exhausting system of sintering machine stability - Google Patents
A method of improving exhausting system of sintering machine stability Download PDFInfo
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- CN109341350A CN109341350A CN201811174628.8A CN201811174628A CN109341350A CN 109341350 A CN109341350 A CN 109341350A CN 201811174628 A CN201811174628 A CN 201811174628A CN 109341350 A CN109341350 A CN 109341350A
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- exhaust fan
- exhausting system
- sintering
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- large flue
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B21/00—Open or uncovered sintering apparatus; Other heat-treatment apparatus of like construction
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D19/00—Arrangements of controlling devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D19/00—Arrangements of controlling devices
- F27D2019/0006—Monitoring the characteristics (composition, quantities, temperature, pressure) of at least one of the gases of the kiln atmosphere and using it as a controlling value
- F27D2019/0009—Monitoring the pressure in an enclosure or kiln zone
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27M—INDEXING SCHEME RELATING TO ASPECTS OF THE CHARGES OR FURNACES, KILNS, OVENS OR RETORTS
- F27M2003/00—Type of treatment of the charge
- F27M2003/04—Sintering
Abstract
A method of improving exhausting system of sintering machine stability, the exemplary position of sintering machine wind box temperature change is obtained by measure and calculation, in this position, setting buffler realizes that exhausting system is segmented independent control, in the independent induced draft fans of the corresponding optimal setting of different phase, it is to reduce frame head and tail for the ease of needing to control sintering negative pressure according to sintering reaction process and put influence of the ash to sintering process；Tail stack gases temperature is improved, is utilized again convenient for high-temp waste gas；Reduction is answered and is shut down caused by exhaust fan failure, and the stability of sintering exhausting system is improved.Compared with prior art, the beneficial effects of the present invention are: reducing frame head and tail 1) convenient for needing to control sintering negative pressure according to sintering reaction process and putting influence of the ash to sintering process.2) tail stack gases temperature can be improved, utilized again convenient for high-temp waste gas；It reduces because being shut down caused by exhaust fan failure, improves the stability of sintering exhausting system.
Description
Technical field
The invention belongs to ironmaking production technical fields, are related to sintering production technology more particularly to a kind of raising sintering machine
The method of exhausting system stability.
Background technique
Sintering is that mixture is taped against pallet by distributing device, and then exhausting is lighted a fire, sintering of igniting from top to bottom
The fuel in the bed of material is mixed, carries out agglomeration mineralizing process constantly, the finished product sinter being finally burnt into.The dirt that sintering process generates
90% or more object of dye concentrates in the flue gas of sintering large flue, but in large flue other than pollutant, also has containing part
There is a high-temperature flue gas of higher utility value, 500 DEG C of maximum temperature or more, oxygen content 19% or so.Most of producers will at present
This part high-temperature flue gas outlet after the processing such as dedusting, desulfurization, out of stock, causes the waste of resource.
After sintering machine is gone into operation, the air quantity regulative mode of main exhauster is that blower passes through air door in the case where power frequency operation
Aperture is adjusted.When exhaust fan, which starts, to be rotated, gas enters from two sides air inlet, rotates with impeller, under the action of the centrifugal force,
It is thrown toward edge from impeller center, spiral case is flowed into higher speed, and flowed out from spiral case water conservancy diversion to exhaust outlet, at this time in blower
Air inlet form certain vacuum degree (i.e. negative pressure), make air through the charge level on trolley, bellows, conduit, large flue (depositing dust
Pipe), electric precipitator enter air port.Due to the continuous rotation of impeller, the flue gas of air inlet constantly passes through interlobate runner, spiral case
It is flowed out to exhaust outlet, carries out down draft sintering process uninterruptedly.When flue gas passes through impeller, due to the phase interaction of impeller and gas
With impeller transfers energy to flue gas, increases the pressure of flue gas and kinetic energy.
Sintering production require sintering machine machine speed keep stablize, sintering process cause vertical sintering speed fluctuate factor compared with
More, this need to control vertical sintering speed by changing blower exhausting air quantity, to guarantee vertical sintering speed and sintering
The lasting matching of machine speed, so that sintering end point is finally reached continually and steadily in second-to-last bellows, to obtain High-quality Sinters.
Main exhauster of sintering revolving speed is operated and is adjusted by artificial experience at present, and the uncertainty of Heuristics, limitation, individual difference
The factors such as different can bring blindness and uncertainty to production control, and the control ability of process is relatively inaccessible to desirable level, causes
It is poor to be sintered exhausting system stability.
Exhausting system of sintering machine is removed by the facilities such as bellows, wind box branch pipe, large flue, gravitational precipitator and ash-removing valve door and electricity
Dirt device, exhaust fan (centrifugal blower), adjusting control valve door, chimney composition.Exhaust fan is exhausting system or even entire sintering system
One of main corollary equipment, directly affect the yield and quality and energy consumption of sintering machine, be sintering production " heart ", it is main
It is that exhausting is carried out by flue, generates negative pressure, makes the good fire of sintering feed millet cake, the solid fuel full combustion in sintering feed, to burn
Knot supply energy, while the various gases generated in sintering process being discharged after being purified by electric precipitator by chimney by flue.
Exhausting system of sintering machine generally acts on entire sintering process by an exhaust fan at present, this kind list blower exhausting system is easy to make
It is unstable at sintering process, such as fan trouble causes sintering machine to stop production；Sintering device handpiece, which puts ash, causes entire sintering system negative
Pressure fluctuation, influences bed permeability；Entire flue perforation, makes the reduction of rear of sintering machine exhaust temperature, is unfavorable for the benefit of its waste heat
With；On the other hand a fan action is also unfavorable for being sintered the sectional-regulated of negative pressure in entire sintering process.
Summary of the invention
The present invention provides a kind of methods for improving exhausting system of sintering machine stability, divide sintering machine suction pressure
Section control is to need to control according to sintering reaction process and burn in the independent induced draft fans of the corresponding optimal setting of different phase
Negative pressure is tied, frame head and tail is reduced and puts influence of the ash to sintering process；Tail stack gases temperature is improved, again convenient for high-temp waste gas
It utilizes；Reduction is answered and is shut down caused by exhaust fan failure, and the stability of sintering exhausting system is improved.
In order to achieve the above object, the present invention is implemented with the following technical solutions:
A method of exhausting system of sintering machine stability is improved, sintering machine wind box temperature change is obtained by measure and calculation
Temperature rise sharply a little, at this point setting buffler realize exhausting system be segmented independent control, it is specific as follows:
1)A bellows, n are sintering machine wind box number and are even number orA bellows, n are to burn
Knot machine bellows number and be odd number, 4~6 thermocouples is installed in each sintering machine wind box, with being averaged for thermocouple measuring temperature
Value is used as corresponding bellows flue-gas temperature；To the scatter plot that bellows are constituted away from head distance and corresponding box temperature, carry out more
Item formula fitting obtains bellows away from the matched curve between head distance and corresponding box temperature；It is fast to find out curve upper bellows temperature
Fast rising point and its distance away from head, are set as exhaust gas temperature herein and rise sharply a little；
2) it is punished in the poly- corresponding large flue in point position that rises of second bellows of ignition of sintering process device out and exhaust gas temperature
Not She Zhi large flue barrier valve M and large flue barrier valve N, large flue barrier valve M and large flue barrier valve N large flue is divided into 3
Section, corresponding exhausting system of sintering machine are divided into independent 3 part, respectively head exhausting system, initial reaction exhausting system and
Vigorous reaction exhausting system；Head exhausting system is equipped with independent exhaust fan A, and initial reaction exhausting system is equipped with independent exhausting
Machine B, vigorous reaction exhausting system are equipped with independent exhaust fan C；Exhaust fan A is identical with exhaust fan C power, and two exhaust fans are simultaneously
The formed suction pressure that works, which is able to satisfy needed for whole sintering machine, is sintered negative pressure；Exhaust fan B power is greater than exhaust fan A and exhaust fan
The formed suction pressure of C, exhaust fan B itself work, which is able to satisfy needed for whole sintering machine, is sintered negative pressure；
3) when exhaust fan A failure, large flue barrier valve M is opened, exhaust fan B increases power and meets head and initial reaction
Exhausting system, which corresponds to, is sintered negative pressure needed for the bed of material；When exhaust fan B failure, large flue barrier valve M and large flue barrier valve are opened
N, exhaust fan A and exhaust fan C increase power simultaneously, and two exhaust fans work at the same time formed suction pressure and meet whole sintering machine
Suction pressure needed for the bed of material；When exhaust fan C failure, large flue barrier valve N is opened, it is initial anti-that exhaust fan B increases power satisfaction
It answers exhausting system and vigorous reaction exhausting system to correspond to and is sintered negative pressure needed for the bed of material；As exhaust fan A and exhaust fan C simultaneous faults,
It opens large flue barrier valve M and large flue barrier valve N, exhaust fan B increases power and meet, formed suction pressure meets whole burning
Suction pressure needed for the knot machine bed of material.
The head exhausting system, initial reaction exhausting system and vigorous reaction exhausting system are equipped with independent dedusting and put ash
System, each exhausting system ash discharge do not influence other exhausting systems.
Compared with prior art, the beneficial effects of the present invention are:
1) present invention carries out Discrete control to sintering machine suction pressure, in the independent exhausting of the corresponding optimal setting of different phase
Blower reduces frame head and tail and puts influence of the ash to sintering process convenient for needing to control sintering negative pressure according to sintering reaction process.
2) present invention carries out Discrete control to sintering machine suction pressure, in the independent exhausting of the corresponding optimal setting of different phase
Blower can be improved tail stack gases temperature, utilize again convenient for high-temp waste gas；It reduces because stopping caused by exhaust fan failure
Machine improves the stability of sintering exhausting system.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention.
Fig. 2 is the bellows distance and flue-gas temperature relational graph of embodiment 1.
Fig. 3 is the bellows distance and flue-gas temperature relational graph of embodiment 2.
In figure: 1- cloth system, 2- ignition system, 3- deduster, 4- exhaust fan A, 5- air draft pipe, 6- exhaust fan B, 7-
Exhaust fan C, 8- pallet, 9- star-wheel, 10- bellows, 11- large flue, 12- electric-controlled switch, 13- large flue barrier valve N, 14-
Ash system, 15- large flue barrier valve M are put in dedusting.
Specific embodiment
Below with reference to embodiment, specific embodiments of the present invention will be further explained:
See Fig. 1, a method of exhausting system of sintering machine stability is improved, sintering machine wind box 10 is obtained by measure and calculation
The temperature of temperature change rises sharply a little, and at this, point setting buffler realizes that exhausting system is segmented independent control, specific as follows:
1)A bellows, n are sintering machine wind box number and are even number orA bellows, n are to burn
Knot machine bellows number and be odd number, installs 4~6 thermocouples in each sintering machine wind box 10, with the flat of thermocouple measuring temperature
Mean value is as corresponding 10 flue-gas temperature of bellows；Scatter plot to bellows away from head distance and corresponding box temperature composition, into
Row fitting of a polynomial obtains bellows away from the matched curve between head distance and corresponding box temperature；Find out curve windward box temperature
Rapid increase point and its distance away from head are spent, exhaust gas temperature is set as herein and rises sharply a little；
2) it is punished in the poly- corresponding large flue in point position that rises of second bellows of ignition of sintering process device out and exhaust gas temperature
Not She Zhi large flue barrier valve M15 and large flue barrier valve N13, large flue barrier valve M15 and large flue barrier valve N13 by automatically controlled
The control of switch 12 opens and closes；Large flue is divided into 3 sections by large flue barrier valve M15 and large flue barrier valve N13, corresponding to be sintered
Machine exhausting system is divided into independent 3 part, respectively head exhausting system, initial reaction exhausting system and vigorous reaction exhausting
System；Head exhausting system is equipped with independent exhaust fan A4, and initial reaction exhausting system is equipped with independent exhaust fan B6, acutely anti-
Exhausting system is answered to be equipped with independent exhaust fan C7；Exhaust fan A4 is identical with exhaust fan C7 power, and two exhaust fans work at the same time institute
It forms suction pressure and is able to satisfy sintering negative pressure needed for whole sintering machine；Exhaust fan B6 power is greater than exhaust fan A4 and exhaust fan C7,
The formed suction pressure of exhaust fan B6 itself work, which is able to satisfy needed for whole sintering machine, is sintered negative pressure；
3) when exhaust fan A4 failure, large flue barrier valve M15 is opened, exhaust fan B6 increases power and meets head and initial
Reaction exhausting system, which corresponds to, is sintered negative pressure needed for the bed of material；When exhaust fan B6 failure, large flue barrier valve M15 and large flue are opened
Barrier valve N13, exhaust fan A4 and exhaust fan C7 increase power simultaneously, and two exhaust fans work at the same time formed suction pressure and meet
Suction pressure needed for the whole sintering machine bed of material；When exhaust fan C7 failure, large flue barrier valve N13 is opened, exhaust fan B6 is increased
Power meets initial reaction exhausting system and vigorous reaction exhausting system corresponds to and is sintered negative pressure needed for the bed of material；When exhaust fan A4 and pumping
Blower C7 simultaneous faults, opens large flue barrier valve M15 and large flue barrier valve N13, exhaust fan B6 increase power and meet, institute's shape
Suction pressure needed for meeting the whole sintering machine bed of material at suction pressure.
The head exhausting system, initial reaction exhausting system and vigorous reaction exhausting system are equipped with independent dedusting and put ash
System 14, each exhausting system ash discharge do not influence other exhausting systems.
Exhaust fan A4, work predominantly meet required tiny structure in sintering negative pressure and ignition furnace needed for head section；Institute
Exhaust fan B6 is stated, work, which predominantly meets, is sintered negative pressure needed for sintering machine bed of material initial reaction；The exhaust fan C7, work
Predominantly meet sintering negative pressure and tail large flue high-temp waste gas needed for sintering machine bed of material vigorous reaction and recycles required negative pressure.
Embodiment 1:
The method for improving exhausting system of sintering machine stability carries out Discrete control to exhausting system of sintering machine, and sintering machine is total
Length 96m has 22 bellows 10；In 12~22 sintering machine wind boxes, each bellows install 4 thermocouples, wherein bellows top
One, portion thermocouple, 2 thermocouples in bellows middle part, the thermocouple of bellows bottom one are made with the average value of thermocouple measuring temperature
For the flue-gas temperature of corresponding bellows, as shown in table 1.
1 bellows flue-gas temperature of table/DEG C
To the scatter plot that bellows are constituted away from head distance and corresponding box temperature, as shown in Figure 2；Scatter plot is carried out more
Item formula fitting obtains bellows away from the matched curve between head distance and corresponding box temperature:
Y=3421.6-147.01221 × X+2.06747 × X2-0.00904×X3(R2=0.99202) (1)
Wherein R is relative index in (1) formula, and finding out exhaust gas temperature on curve and rising sharply a little is (75.82,209.44), i.e.,
At head 75.82m sintered discharge gas temperature rise sharply；In second bellows of ignition of sintering process device out and apart from head 75.82m
Large flue barrier valve M15 and large flue barrier valve N13, large flue barrier valve M15 and opium are respectively set at corresponding large flue
Road barrier valve N13 is made by electric-controlled switch control 12 and is opened and closed；Large flue barrier valve M15 and large flue barrier valve N13 is by opium
Road is divided into 3 sections, and corresponding exhausting system of sintering machine is divided into independent 3 part, respectively head exhausting system, initial reaction exhausting
System and vigorous reaction exhausting system.Head exhausting system is equipped with independent exhaust fan A4, and initial reaction exhausting system is equipped with only
Vertical exhaust fan B6, vigorous reaction exhausting system are equipped with independent exhaust fan C7；Exhaust fan A4 is identical with exhaust fan C7 power, and two
Platform exhaust fan works at the same time formed suction pressure and is able to satisfy sintering negative pressure needed for whole sintering machine；Exhaust fan B6 power, which is greater than, to be taken out
Blower A4 and exhaust fan C7, its own formed suction pressure that works, which is able to satisfy needed for whole sintering machine, is sintered negative pressure.
When exhaust fan A4 failure, large flue barrier valve M15 is opened, exhaust fan B6 increases power and meets head and initial anti-
It answers exhausting system to correspond to and is sintered negative pressure needed for the bed of material；When exhaust fan B6 failure, open large flue barrier valve M15 and large flue every
Plate valve N13, exhaust fan A4 and exhaust fan C7 increase power simultaneously, and two exhaust fans, which work at the same time formed exhausting and bear, meets whole
Suction pressure needed for the sintering machine bed of material；When exhaust fan C7 failure, large flue barrier valve N13 is opened, exhaust fan B6 increases power
Meet initial reaction exhausting system and vigorous reaction exhausting system corresponds to and is sintered negative pressure needed for the bed of material；When exhaust fan A4 and exhaust fan
C7 simultaneous faults, opens large flue barrier valve M15 and large flue barrier valve N13, exhaust fan B6 increase power and meet, and forms pumping
Wind is negative meet the whole sintering machine bed of material needed for suction pressure.
After present invention application, sintering machine operating rate improves 99.8% by 97.1%, and gas consumption in ignition is dropped by 0.058GJ/t
As low as 0.042GJ/t, usage factor is sintered by 1.315t/h.m2It is increased to 1.412t/h.m2, sintered ore rotary drum strength by
79.2% is increased to 87.6%.
Embodiment 2:
The method for improving exhausting system of sintering machine stability carries out Discrete control to exhausting system of sintering machine, and sintering machine is total
Length 108m has 23 bellows 10；In 12~23 sintering machine wind boxes, each bellows install 5 thermocouples, are surveyed with thermocouple
Determine flue-gas temperature of the average value of temperature as corresponding bellows, as shown in table 2.
2 bellows flue-gas temperature of table/DEG C
To the scatter plot that the bellows are constituted away from head distance and corresponding box temperature, as shown in Figure 3；To scatter plot into
Row fitting of a polynomial obtains bellows away from the matched curve between head distance and corresponding box temperature:
Y=4905.7028-186.63474 × X+2.31232 × X2-0.00901×X3(R2=0.99607) (2)
Wherein R is relative index in (2) formula, and finding out exhaust gas temperature on curve and rising sharply a little is (85.46,206.19), i.e.,
At head 85.46m sintered discharge gas temperature rise sharply；In second bellows of ignition of sintering process device out and apart from head 85.46m
Large flue barrier valve M15 and large flue barrier valve N13, large flue barrier valve M15 and opium are respectively set at corresponding large flue
Road barrier valve N13 is controlled by electric-controlled switch 12 and is opened and closed；Large flue barrier valve M15 and large flue barrier valve N13 is by opium
Road is divided into 3 sections, and corresponding exhausting system of sintering machine is divided into independent 3 part, respectively head exhausting system, initial reaction exhausting
System and vigorous reaction exhausting system.Head exhausting system is equipped with independent exhaust fan A4, and initial reaction exhausting system is equipped with only
Vertical exhaust fan B6, vigorous reaction exhausting system are equipped with independent exhaust fan C7；Exhaust fan A4 is identical with exhaust fan C7 power, and two
Platform exhaust fan works at the same time formed suction pressure and is able to satisfy sintering negative pressure needed for whole sintering machine；Exhaust fan B6 power, which is greater than, to be taken out
Blower A4 and exhaust fan C7, its own formed suction pressure that works, which is able to satisfy needed for whole sintering machine, is sintered negative pressure.
When exhaust fan A4 failure, large flue barrier valve M15 is opened, exhaust fan B6 increases power and meets head and initial anti-
It answers exhausting system to correspond to and is sintered negative pressure needed for the bed of material；When exhaust fan B6 failure, open large flue barrier valve M15 and large flue every
Plate valve N13, exhaust fan A4 and exhaust fan C7 increase power simultaneously, and two exhaust fans, which work at the same time formed exhausting and bear, meets whole
Suction pressure needed for the sintering machine bed of material；When exhaust fan C7 failure, large flue barrier valve N13 is opened, exhaust fan B6 increases power
Meet initial reaction exhausting system and vigorous reaction exhausting system corresponds to and is sintered negative pressure needed for the bed of material；When exhaust fan A4 and exhaust fan
C7 simultaneous faults, opens large flue barrier valve M15 and large flue barrier valve N13, exhaust fan B6 increase power and meet, and forms pumping
Wind is negative meet the whole sintering machine bed of material needed for suction pressure.
After present invention application, sintering machine operating rate improves 99.6% by 97.8%, and gas consumption in ignition is dropped by 0.064GJ/t
As low as 0.045GJ/t, usage factor is sintered by 1.365t/h.m2It is increased to 1.482t/h.m2, sintered ore rotary drum strength by
80.2% is increased to 87.6%.
Claims (2)
1. a kind of method for improving exhausting system of sintering machine stability, which is characterized in that obtain sintering machine wind by measure and calculation
The temperature of case temperature change rises sharply a little, and at this, point setting buffler realizes that exhausting system is segmented independent control, specific as follows:
1)A bellows, n are sintering machine wind box number and are even number orA bellows, n are sintering machine
Bellows number and be odd number, 4~6 thermocouples are installed in each sintering machine wind box, are made with the average value of thermocouple measuring temperature
For corresponding bellows flue-gas temperature；To the scatter plot that bellows are constituted away from head distance and corresponding box temperature, multinomial is carried out
Fitting obtains bellows away from the matched curve between head distance and corresponding box temperature；Find out curve upper bellows temperature it is quick on
Point and its distance away from head are risen, exhaust gas temperature is set as herein and rises sharply a little；
2) it is set respectively at the corresponding large flue in point position in second bellows of ignition of sintering process device out and exhaust gas temperature poly- rise
It sets large flue barrier valve M and large flue barrier valve N, large flue barrier valve M and large flue barrier valve N and large flue is divided into 3 sections, phase
Exhausting system of sintering machine is answered to be divided into independent 3 part, respectively head exhausting system, initial reaction exhausting system and acutely anti-
Answer exhausting system；Head exhausting system is equipped with independent exhaust fan A, and initial reaction exhausting system is equipped with independent exhaust fan B, acute
Strong reaction exhausting system is equipped with independent exhaust fan C；Exhaust fan A is identical with exhaust fan C power, and two exhaust fans work at the same time institute
It forms suction pressure and is able to satisfy sintering negative pressure needed for whole sintering machine；Exhaust fan B power is greater than exhaust fan A and exhaust fan C, exhausting
The formed suction pressure of machine B itself work, which is able to satisfy needed for whole sintering machine, is sintered negative pressure；
3) when exhaust fan A failure, large flue barrier valve M is opened, exhaust fan B increases power and meets head and initial reaction exhausting
System, which corresponds to, is sintered negative pressure needed for the bed of material；When exhaust fan B failure, large flue barrier valve M and large flue barrier valve N is opened, is taken out
Blower A and exhaust fan C increases power simultaneously, and two exhaust fans work at the same time formed suction pressure and meet the whole sintering machine bed of material
Required suction pressure；When exhaust fan C failure, large flue barrier valve N is opened, exhaust fan B increases power and meets initial reaction pumping
Wind system and vigorous reaction exhausting system, which correspond to, is sintered negative pressure needed for the bed of material；As exhaust fan A and exhaust fan C simultaneous faults, open
Large flue barrier valve M and large flue barrier valve N, exhaust fan B increase power and meet, and formed suction pressure meets whole sintering machine
Suction pressure needed for the bed of material.
2. a kind of method for improving exhausting system of sintering machine stability according to claim 1, which is characterized in that the machine
Head exhausting system, initial reaction exhausting system and vigorous reaction exhausting system are equipped with independent dedusting and put ash system, each exhausting
System ash discharge does not influence other exhausting systems.
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| CN103292605A (en) * | 2013-04-23 | 2013-09-11 | 孙慕文 | Flue gas waste heat recovery system of sintering machine tail |
| CN206683423U (en) * | 2017-04-27 | 2017-11-28 | 重庆钢铁(集团)有限责任公司 | A kind of sintering circular-cooler flue gas waste heat utilization device |
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2018
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| CN101424484A (en) * | 2008-11-12 | 2009-05-06 | 昆明阳光基业股份有限公司 | Control method for stabilizing and enhancing sintered ring cooling wind temperature while smelting steel |
| CN101655319A (en) * | 2009-04-13 | 2010-02-24 | 浙江西子联合工程有限公司 | System for regulating and optimizing smoke by power generation and recycle of residual heat of sintering ring cold machine |
| CN103157356A (en) * | 2011-12-14 | 2013-06-19 | 鞍钢股份有限公司 | Sintering denitrification system and nitrogen oxide removal method thereof |
| CN103292605A (en) * | 2013-04-23 | 2013-09-11 | 孙慕文 | Flue gas waste heat recovery system of sintering machine tail |
| CN206683423U (en) * | 2017-04-27 | 2017-11-28 | 重庆钢铁(集团)有限责任公司 | A kind of sintering circular-cooler flue gas waste heat utilization device |
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