CN106152802A - Sintering device flue gas EGR and control method - Google Patents
Sintering device flue gas EGR and control method Download PDFInfo
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- CN106152802A CN106152802A CN201510206866.2A CN201510206866A CN106152802A CN 106152802 A CN106152802 A CN 106152802A CN 201510206866 A CN201510206866 A CN 201510206866A CN 106152802 A CN106152802 A CN 106152802A
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Abstract
The invention discloses a kind of sintering device flue gas EGR and control method, including sintering machine, central cooler, the sintering device flue gas circulatory system, central cooler smoke circulating system, mixed flue gas system.Sintering machine includes many arms and unloads ash sealing-tape machine, and many arms are connected to unload ash sealing-tape machine.Sintering machine connects central cooler, and sintering machine connects the sintering device flue gas circulatory system, and central cooler connects the entrance of central cooler smoke circulating system, and is provided with electric butterfly valve between sintering machine and the sintering device flue gas circulatory system.Mixed flue gas system connects the sintering device flue gas circulatory system and the outlet of central cooler smoke circulating system respectively.The sintering device flue gas EGR of the present invention and control method utilize sintering circuit to produce the high-temp waste gas of part, it directly supplies pallet and plays hot gas sintering effect, on the one hand can reduce coke ratio, on the other hand improve sintering deposit yield rate.
Description
Technical field
The present invention relates to a kind of flue gas device and control method, more particularly, it relates to sintering device flue gas EGR and control method.
Background technology
Sintering circuit is energy consumption and the disposal of pollutants rich and influential family of steel industry.In the residual heat resources being not yet utilized effectively, sintering low temperature waste heat is wherein main one.According to sintering thermal equilibrium analysis, the physical thermal that sintered discharge gas and sinter cake are taken away closely accounts for about the 50～60% of whole sintering process energy consumption.But, sintering low temperature waste heat resource also could not all be recycled by domestic steel production enterprise effectively.
Large quantity of exhaust gas to be produced in iron ore sintering production process, the exhausted air quantity that general 130 square metres of sintering machines discharge per hour is up to 600,000 m3/h.Additionally, the environmental contaminants containing Various Complex in sintered discharge gas, such as dust, SO2, NOX, dioxin persistence organic pollutant (POPs) etc..In addition to improving dust emission control standard, new " steel and iron industry atmosphere pollutants emission standards " has clearly added the emission control standard of the pollutant such as SO2, NOX and dioxin in sintering flue gas.
External research and industrial practice show, sintered discharge gas low temperature exhaust heat recycles and not only can substantially reduce waste gas total emission volumn and the pollutant discharge amount that sintering process produces, and can low temperature exhaust heat in recovered flue gas, save sintering process energy consumption, there are great energy-saving and emission-reduction and be worth.
As it is shown in figure 1, sintering circuit creates waste heat amount maximum in steel manufacture process, sintering waste heat recycling work should come the first place of whole iron and steel enterprise heat recovery.Existing China sintering circuit UTILIZATION OF VESIDUAL HEAT IN is only limitted to cooling machine waste gas waste heat, is mainly used in hot gas sintering, hot wind ignition, hot blast insulation, steam boiler, and domestic also beyond example for Main Gas Flue of Sintering Machine flue gas heat recovery.For the hot waste gas that sinter cooler produces, removing outside the hot blast used such as hot gas sintering, hot wind ignition, hot blast insulation, hot blast also has a large amount of residue, and also the cooling waste gas of a large amount of 100～300 DEG C could not be obtained by.
Content of the invention
For the problem of sintering process energy waste present in prior art, it is an object of the invention to provide sintering device flue gas EGR and control method.
For achieving the above object, the present invention adopts the following technical scheme that
A kind of sintering device flue gas EGR, including sintering machine, central cooler, the sintering device flue gas circulatory system, central cooler smoke circulating system, mixed flue gas system.Sintering machine includes many arms and unloads ash sealing-tape machine, and many arms are connected to unload ash sealing-tape machine.Sintering machine connects central cooler, and sintering machine connects the sintering device flue gas circulatory system, and central cooler connects the entrance of central cooler smoke circulating system, and is provided with electric butterfly valve between sintering machine and the sintering device flue gas circulatory system.Mixed flue gas system connects the sintering device flue gas circulatory system and the outlet of central cooler smoke circulating system respectively.
According to one embodiment of the invention, the sintering device flue gas circulatory system includes wind box branch pipe, sintering machine deduster, sintering device flue gas circulating fan, sintering machine inlet baffle, sintering machine outlet damper.Wind box branch pipe connects sintering machine deduster, and sintering machine deduster connects sintering machine inlet baffle, and sintering machine inlet baffle connects sintering device flue gas circulating fan, and sintering device flue gas circulating fan connects sintering machine outlet damper.
According to one embodiment of the invention, central cooler smoke circulating system includes central cooler deduster, central cooler flue gas recirculation blower fan, central cooler inlet baffle, central cooler outlet damper.Central cooler connects central cooler deduster, and central cooler deduster connects central cooler inlet baffle, and central cooler inlet baffle connects central cooler flue gas recirculation blower fan, and central cooler flue gas recirculation blower fan connects central cooler outlet damper.
According to one embodiment of the invention, mixed flue gas system includes blending bin, accident baffle door, circulating flue gas fan housing.Blending bin connects sintering machine outlet damper, central cooler outlet damper and accident baffle door respectively, connects blending bin and sintering machine in circulating flue gas fan housing.
According to one embodiment of the invention, the first pressure transmitter and first-class gauge are set between wind box branch pipe and sintering machine deduster, the second pressure transmitter is set between sintering machine deduster and sintering device flue gas circulating fan.
According to one embodiment of the invention, the 4th pressure transmitter and the 4th flowmeter are set between central cooler and central cooler deduster, the 5th pressure transmitter is set between central cooler deduster and central cooler inlet baffle.
According to one embodiment of the invention, the 3rd pressure transmitter and the first temperature sensor are set between blending bin and sintering machine outlet damper, the 6th pressure transmitter and the second temperature sensor are set between blending bin and central cooler outlet damper.
For achieving the above object, the present invention also adopts the following technical scheme that
A kind of sintering device flue gas circulation controlling means, comprises the following steps: open the valve of wind box branch pipe, selects switching direction according to flue gas recirculation result of calculation；Central cooler valve closing；Accident baffle door remains off；The flue gas of the sintering device flue gas circulatory system is sent into circulating flue gas fan housing, and sends sintering machine further back to.
According to one embodiment of the invention, in the case of fault, maintenance, by the valve transfer of wind box branch pipe to sintering machine, and central cooler valve opening.
In technique scheme, the sintering device flue gas EGR of the present invention and control method utilize sintering circuit to produce the high-temp waste gas of part, it is directly supplied pallet and plays hot gas sintering effect, on the one hand can reduce coke ratio, on the other hand improve sintering deposit yield rate.
Brief description
Fig. 1 is existing sintering machine process schematic flow sheet；
Fig. 2 is the structural representation of the sintering device flue gas circulatory system of the present invention；
Fig. 3 is the structural representation of central cooler smoke circulating system of the present invention；
Fig. 4 is the structural representation of mixed flue gas system of the present invention.
Detailed description of the invention
Further illustrate technical scheme with embodiment below in conjunction with the accompanying drawings.
As shown in Figure 2, Figure 3 and Figure 4, the sintering device flue gas EGR of the present invention mainly includes sintering machine, central cooler, the sintering device flue gas circulatory system, central cooler smoke circulating system, mixed flue gas system etc..
The general structure of the present invention is: sintering machine includes many arms and unloads ash sealing-tape machine, and many arms are connected to unload ash sealing-tape machine.Sintering machine connects central cooler, and sintering machine connects the sintering device flue gas circulatory system, and central cooler connects the entrance of central cooler smoke circulating system, and is provided with electric butterfly valve between sintering machine and the sintering device flue gas circulatory system.Mixed flue gas system connects the sintering device flue gas circulatory system and the outlet of central cooler smoke circulating system respectively.
Come to further illustrate respectively the sintering device flue gas circulatory system, central cooler smoke circulating system, the concrete structure of mixed flue gas system below.
As in figure 2 it is shown, the sintering device flue gas circulatory system mainly includes wind box branch pipe, sintering machine deduster the 1st, sintering device flue gas circulating fan the 3rd, sintering machine inlet baffle the 2nd, sintering machine outlet damper 4.Wind box branch pipe connects sintering machine deduster 1, and sintering machine deduster 1 connects sintering machine inlet baffle 2, and sintering machine inlet baffle 2 connects sintering device flue gas circulating fan 3, and sintering device flue gas circulating fan 3 connects sintering machine outlet damper 4.
Specifically, flue gas takes from 1#, 14#, 15# wind box branch pipe below sintering machine (each bellows has 2 arms), it is respectively provided with electric butterfly valve at original arm and newly-increased taking on tracheae, in order to switch flue gas flow direction, the electric operator of butterfly valve is connected with valve by long valve rod, it is placed on newly-increased platform, it is to avoid contact with high-temperature flue.
Respectively take tracheae flue gas (about 11～170,000 m3/h, temperature about 195～202 DEG C) converge after enter newly-increased multi-tube dust cleaner, deduster entrance concentration about 6g/Nm3, outlet dust about 600mg/Nm3, efficiency of dust collection >=90%, this multi-tube dust cleaner inner eddy flow is alloy-steel casting, can tolerate high temperature and abrasion.
Flue gas after dedusting is delivered to mixed flue gas system by sintering device flue gas circulating fan 3 and is mixed with central cooler flue gas.
First pressure transmitter and first-class gauge are set between wind box branch pipe and sintering machine deduster 1, second pressure transmitter is set between sintering machine deduster 1 and sintering device flue gas circulating fan 3, the 3rd pressure transmitter and the first temperature sensor are set between blending bin 5 and sintering machine outlet damper 4.Specifically, for ensureing security of system stable operation, installing flowmeter FT1, pressure transmitter PT1 respectively taking on the flue after tracheae converges, monitoring enters the smoke condition of the sintering device flue gas circulatory system；Pressure transmitter PT2 is set at house outlet, monitors deduster pressure drop；And pressure transmitter PT3 and thermometer AT1, the sintering smoke condition before monitoring entrance hybrid system are set on booster fan exhaust pass.Adjust sinter machine bellows branch line baffle door on off state and the aperture of sintering device flue gas circulating fan 3 import and export baffle door according to these detection data.
Flue arranges manhole and ash-unloading tube by section, in order to clean dust stratification in flue.The ash that deduster is collected will deliver to former sintering defeated ash belt by drag conveyor.
As it is shown on figure 3, central cooler smoke circulating system includes central cooler deduster the 6th, central cooler flue gas recirculation blower fan the 8th, central cooler inlet baffle the 7th, central cooler outlet damper 9.Central cooler connects central cooler deduster 6, and central cooler deduster 6 connects central cooler inlet baffle 7, and central cooler inlet baffle 7 connects central cooler flue gas recirculation blower fan 8, and central cooler flue gas recirculation blower fan 8 connects central cooler outlet damper 9.
Specifically, partial fume (about 15～200,000 m3/h are extracted at the exhaust chimney of central cooler high temperature section petticoat pipe, temperature about 235 DEG C), baffle door set up by original exhaust chimney, in order to switch flue gas flow direction, the flue gas extracted out enters newly-increased multi-tube dust cleaner, deduster entrance concentration about 6g/Nm3, exports dust about 600mg/Nm3, efficiency of dust collection >=90%, this multi-tube dust cleaner inner eddy flow is alloy-steel casting, can tolerate high temperature and abrasion.
Flue gas after dedusting is delivered to mixed flue gas system by central cooler flue gas recirculation blower fan 8 and is mixed with sintering device flue gas.
4th pressure transmitter and the 4th flowmeter are set between central cooler and central cooler deduster 6,5th pressure transmitter is set between central cooler deduster 6 and central cooler inlet baffle 7, the 6th pressure transmitter and the second temperature sensor are set between blending bin 5 and central cooler outlet damper 9.Specifically, it is ensured that security of system stable operation, taking installation flowmeter FT4, pressure transmitter PT4 on gas flue, monitoring enters the smoke condition of central cooler smoke circulating system；Pressure transmitter PT5 is set at house outlet, monitors deduster pressure drop；And pressure transmitter PT6 and thermometer TA2, the ring cold flue gas situation before monitoring entrance hybrid system are set on central cooler flue gas recirculation blower fan 8 exhaust pass.Carry out the aperture of adjustment ring cold flue gas recirculation blower fan 8 import and export baffle door according to these detection data.
Flue arranges manhole and ash-unloading tube by section, in order to clean dust stratification in flue.The ash that deduster is collected will deliver to former sintering defeated ash belt by drag conveyor.
As shown in Figure 4, mixed flue gas system includes blending bin the 5th, accident baffle door the 10th, circulating flue gas fan housing.Blending bin 5 connects sintering machine outlet damper the 4th, central cooler outlet damper 9 and accident baffle door 10 respectively, connects blending bin 5 and sintering machine in circulating flue gas fan housing.
Specifically, mixed flue gas system is entered after sintering machine circulating flue gas and central cooler circulating flue gas converge, after two strands of flue gases are sufficiently mixed in vertical flue gas blender, it is admitted in circulating flue gas fan housing, reach pallet, as combustion air, enter sinter bed.
Mixed flue gas system separately sets an accident baffle door 10, when breaking down in order to the sintering device flue gas circulatory system or central cooler smoke circulating system, is that sintering machine supplements air in time, produces in order to avoid impact is normal.
Mixing flue arranges the measuring instruments such as flowmeter FT7, pressure transmitter PT7, thermometer TA3, hygrometer, CO measuring instrument, O2 measuring instrument, adjust sinter machine bellows branch line baffle door on off state according to these detection data, the aperture of sintering device flue gas circulating fan 3 import and export baffle door and the aperture of central cooler flue gas recirculation blower fan 8 import and export baffle door, necessary in the case of also can the aperture of the baffle door of adjustment accident accordingly 10.
On the other hand, the invention also discloses and utilize the sintering device flue gas circulation controlling means of said apparatus, put it briefly, it may comprise steps of:
S1: open the valve of wind box branch pipe, selects switching direction according to flue gas recirculation result of calculation；
S2: central cooler valve closing；
S3: accident baffle door 10 remains off；
S4: the flue gas of the sintering device flue gas circulatory system is sent into circulating flue gas fan housing, and sends sintering machine further back to；
S5: in the case of fault, maintenance, by the valve transfer of wind box branch pipe to sintering machine, and central cooler valve opening.
It is distributed detailed description each step above-mentioned below.
The process system of the present invention is made up of switch valve, flue, sintering machine circulating flue gas deduster, sintering machine circulating fan, central cooler circulating flue gas deduster, central cooler circulating fan, fan housing, embedded scraper transporter and monitoring device etc..
When smoke circulating system is properly functioning, the arm valve (totally 6) of bellows 1#, 14#, 15# selects corresponding switching direction according to flue gas recirculation result of calculation, central cooler chimney valve is closed, circulating flue gas accident baffle door 10 (wild air-valve) is closed, the flue gas being chosen to enter smoke circulating system is admitted in circulating flue gas fan housing after cyclone dust collectors process, reach pallet, as combustion air, reenter sinter bed.The dust that cyclone dust collectors are collected will deliver to fume recovery system below sintering machine by embedded scraper transporter, re-use.
Flue gas recirculation fault, occur unintended emergency shut down or maintenance when; bellows 1#, 14#, 15#, arm valve all switch to main sintering system; sintering flue gas passes through smoke stack emission after entering electric precipitation by sintering flue collector; central cooler chimney valve is opened; ring cold flue gas is by this smoke stack emission, it is ensured that does not affect sintering machine and normally produces.
System, when linkage starts or shuts down, needs in a certain order, and is required to certain interlock connection and start-stop time interval between each neighbouring device.
1. properly functioning
Properly functioning more than the 5h of sintering machine；
Bellows 1#, 14#, 15# switching valve reaches sinter flue collector；
The valve plate that ring cold flue gas enters the ring cold flue gas circulatory system is closed (i.e. ring cold flue gas fully enters the discharge of ring cold smoke chimney)；
Sintering machine circulating fan is closed with central cooler circulating fan entry and exit valve；
Circulating flue gas accident baffle door 10 (wild air-valve) is closed；
Deduster star-shaped dust-discharging valve and induction system are closed.
Divide three pieces of function: a, only ring cold flue gas circular flows；B, only sintering bellows flue gas recirculation run；C, ring are cold and sintering flue gas mixing circulation is run；
1.1 only ring cold flue gas are run when circulating
1) start conveyer, open ring cold deduster ash discharging system
2) ring SAPMAC method blower fan plate washer door is opened
3) ring SAPMAC method fan starting
4) ring SAPMAC method air door of fan aperture is transferred to 10%
5) circulating flue gas accident baffle door 10 (wild air-valve) is closed
6) it is gradually increased ring SAPMAC method air door of fan aperture
7) ring cold flue gas circulatory system stable operation
8) valve of central cooler chimney is closed
1.2 run when only sintering flue gas recirculation
1) start conveyer, open sintering smoke duster ash discharging system
2) sintering circulating fan outlet plate washer door is opened
3) sintering circulating fan is started
4) circulating fan throttle opening is transferred to 10%
5) circulating flue gas accident baffle door 10 (wild air-valve) is closed
6) suitable 1# bellows cycle flue of opening switches valve
7) smoke circulating system stable operation 30min
8) circulating fan throttle opening is tuned up
9) suitable 14# bellows cycle flue of opening switches valve
10) smoke circulating system stable operation 30min
11) circulating fan throttle opening is tuned up
12) suitable 15# bellows cycle flue of opening switches valve
13) smoke circulating system stable operation.
1.3 rings are cold and sintering flue gas mixing circulation is run
The first open loop cold flue gas circulatory system, then open sintering smoke circulating system.
1) start conveyer, open ring cold deduster ash discharging system
2) ring SAPMAC method blower fan plate washer door is opened
3) ring SAPMAC method fan starting
4. ring SAPMAC method air door of fan aperture is transferred to 10%
5) circulating flue gas accident baffle door 10 (wild air-valve) is closed
6) it is gradually increased ring SAPMAC method air door of fan aperture
7) ring cold flue gas circulatory system stable operation
8) central cooler chimney valve is closed
9) start conveyer, open sintering smoke duster ash discharging system
10) sintering circulating fan outlet plate washer door is opened
11) sintering circulating fan is started
12) circulating fan throttle opening is transferred to 10%
13) suitable 1# bellows cycle flue of opening switches valve
14) smoke circulating system stable operation 30min
15) circulating fan throttle opening is tuned up
16) suitable 14# bellows cycle flue of opening switches valve
17) smoke circulating system stable operation 30min
18) circulating fan throttle opening is tuned up
19) suitable 15# bellows cycle flue of opening switches valve
20) smoke circulating system stable operation
2 suitable sequences of stopping:
Point three pieces: a, only ring cold flue gas circulation is stopped transport；B, only sintering bellows flue gas recirculation are stopped transport；C, ring are cold and sintering flue gas mixing circulation is stopped transport；
2.1 rings are cold and sintering flue gas mixing circulation is stopped transport
First stop to sinter smoke circulating system, then stop the ring cold flue gas circulatory system.
1) along pass 15# bellows cycle flue switching valve
2) circulating fan throttle opening is reduced
3) along pass 14# bellows cycle flue switching valve
4) circulating fan throttle opening is reduced
5) along pass 1# bellows cycle flue switching valve
6) sintering circulating fan is stopped
7) circulating fan inlet vane is closed
8) circulating fan outlet damper door is closed
9) ring cold flue gas is opened to chimney baffle door
10) ring SAPMAC method blower fan is stopped
11) closed loop SAPMAC method fans entrance air door is closed
12) circulating fan exit catch plate valve is closed
13) circulating flue gas accident baffle door 10 (wild air-valve) is opened
Those of ordinary skill in the art will be appreciated that, above embodiment is intended merely to the present invention is described, and it is not used as limitation of the invention, as long as in the spirit of the present invention, change, the modification of embodiment described above all will be fallen in the range of claims of the present invention.
Claims (9)
1. a sintering device flue gas EGR, it is characterised in that include:
Sintering machine, central cooler, the sintering device flue gas circulatory system, central cooler smoke circulating system, mixing
Flue gas system；
Described sintering machine includes many arms and unloads ash sealing-tape machine, and described many arms are connected to described
Unload ash sealing-tape machine；
Described sintering machine connects described central cooler, and described sintering machine connects described sintering device flue gas cyclic system
System, described central cooler connects the entrance of described central cooler smoke circulating system, and described sintering machine and institute
State and be provided with electric butterfly valve between the sintering device flue gas circulatory system.
Described mixed flue gas system connects the described sintering device flue gas circulatory system respectively and central cooler flue gas follows
The outlet of loop systems.
2. a kind of sintering device flue gas EGR as claimed in claim 1, it is characterised in that:
The described sintering device flue gas circulatory system includes wind box branch pipe, sintering machine deduster, sintering device flue gas
Circulating fan, sintering machine inlet baffle, sintering machine outlet damper；
Described wind box branch pipe connects described sintering machine deduster, and described sintering machine deduster connects described burning
Knot machine inlet baffle, described sintering machine inlet baffle connects described sintering device flue gas circulating fan, described
Sintering device flue gas circulating fan connects described sintering machine outlet damper.
3. a kind of sintering device flue gas EGR as claimed in claim 2, it is characterised in that:
Described central cooler smoke circulating system include central cooler deduster, central cooler flue gas recirculation blower fan,
Central cooler inlet baffle, central cooler outlet damper；
Described central cooler connects central cooler deduster, and it is cold that described central cooler deduster connects described ring
Machine inlet baffle, described central cooler inlet baffle connects described central cooler flue gas recirculation blower fan, described ring
Cold flue gas recirculation blower fan connects described central cooler outlet damper.
4. a kind of sintering device flue gas EGR as claimed in claim 3, it is characterised in that:
Described mixed flue gas system includes blending bin, accident baffle door, circulating flue gas fan housing；
Described blending bin connects described sintering machine outlet damper, central cooler outlet damper and described thing respectively
Therefore baffle door；
Described blending bin and described sintering machine is connected in described circulating flue gas fan housing.
5. a kind of sintering device flue gas EGR as claimed in claim 2, it is characterised in that:
First pressure transmitter and first flow are set between described wind box branch pipe and sintering machine deduster
Meter, arranges the second pressure transmitter between described sintering machine deduster and sintering device flue gas circulating fan.
6. a kind of sintering device flue gas EGR as claimed in claim 3, it is characterised in that:
Between described central cooler and described central cooler deduster, the 4th pressure transmitter and the 4th flow are set
Meter, arranges the 5th pressure transmitter between described central cooler deduster and described central cooler inlet baffle.
7. a kind of sintering device flue gas EGR as claimed in claim 4, it is characterised in that:
3rd pressure transmitter and the first temperature are set between described blending bin and described sintering machine outlet damper
Degree sensor, arrange between described blending bin and described central cooler outlet damper the 6th pressure transmitter and
Second temperature sensor.
8. a sintering device flue gas circulation controlling means, it is characterised in that comprise the following steps:
Open the valve of wind box branch pipe, select switching direction according to flue gas recirculation result of calculation；
Central cooler valve closing；
Accident baffle door remains off；
The flue gas of the sintering device flue gas circulatory system is sent into circulating flue gas fan housing, and sends sintering further back to
Machine.
9. sintering device flue gas circulation controlling means as claimed in claim 8, it is characterised in that:
In the case of fault, maintenance, by the valve transfer of wind box branch pipe to sintering machine, and central cooler
Valve opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510206866.2A CN106152802A (en) | 2015-04-27 | 2015-04-27 | Sintering device flue gas EGR and control method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510206866.2A CN106152802A (en) | 2015-04-27 | 2015-04-27 | Sintering device flue gas EGR and control method |
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| CN106152802A true CN106152802A (en) | 2016-11-23 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106594709A (en) * | 2016-12-09 | 2017-04-26 | 陈彦羽 | Smoke removing type vertical boiler equipment with biomass as energy fuel |
| CN111765758A (en) * | 2020-07-07 | 2020-10-13 | 中冶北方（大连）工程技术有限公司 | System and method for controlling pressure in flue gas hood of sintering machine |
| CN112815731A (en) * | 2021-03-03 | 2021-05-18 | 焦作市迈科冶金机械有限公司 | Sintering machine hot flue gas circulation structure |
| CN113805623A (en) * | 2021-08-23 | 2021-12-17 | 马鞍山钢铁股份有限公司 | Temperature-stabilizing regulation control model of air self-convection box-type partition plate device and application method |
-
2015
- 2015-04-27 CN CN201510206866.2A patent/CN106152802A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106594709A (en) * | 2016-12-09 | 2017-04-26 | 陈彦羽 | Smoke removing type vertical boiler equipment with biomass as energy fuel |
| CN106594709B (en) * | 2016-12-09 | 2018-08-24 | 赣州市怡辰新能源开发有限公司 | A kind of smoke abatement type vertical boiler equipment using biomass as energy fuel |
| CN111765758A (en) * | 2020-07-07 | 2020-10-13 | 中冶北方（大连）工程技术有限公司 | System and method for controlling pressure in flue gas hood of sintering machine |
| CN111765758B (en) * | 2020-07-07 | 2024-06-11 | 中冶北方（大连）工程技术有限公司 | System and method for controlling pressure in flue gas hood of sintering machine |
| CN112815731A (en) * | 2021-03-03 | 2021-05-18 | 焦作市迈科冶金机械有限公司 | Sintering machine hot flue gas circulation structure |
| CN113805623A (en) * | 2021-08-23 | 2021-12-17 | 马鞍山钢铁股份有限公司 | Temperature-stabilizing regulation control model of air self-convection box-type partition plate device and application method |
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Application publication date: 20161123 |