CN209147748U - Energy-saving and emission-reducing is sintered cooling system - Google Patents
Energy-saving and emission-reducing is sintered cooling system Download PDFInfo
- Publication number
- CN209147748U CN209147748U CN201822009514.XU CN201822009514U CN209147748U CN 209147748 U CN209147748 U CN 209147748U CN 201822009514 U CN201822009514 U CN 201822009514U CN 209147748 U CN209147748 U CN 209147748U
- Authority
- CN
- China
- Prior art keywords
- cooling
- upper cover
- section
- flue gas
- sintering
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The utility model belongs to ferrous metallurgical industry technical field, cooling system is sintered more particularly, to a kind of energy-saving and emission-reducing, including sintering machine, the rotary forced-air cooler being connected with this sintering machine, it is characterized in that being equipped with air bells cap above sintering machine, air bells cap leading portion is connected with cooling waste gas circulation blower by cooling exhaust gas branch pipe, air bells cap back segment is connected with sintering flue gas recycling device by circulating flue gas branch pipe, I section of upper cover is equipped on rotary forced-air cooler top, II section of upper cover, III section and IV section of upper cover of upper cover, cooling blower I is connected with the bellows of rotary forced-air cooler leading portion, cooling blower II is connected with the bellows in middle section, cooling blower III is connected with the bellows of back segment.The utility model is used to eliminate the uncontrollable discharge source of the cooling link of heat sinter, the waste heat of sintering ore cooling waste gas is made full use of, system heat loss is reduced, reduces energy consumption, it is circulating flue gas supplemental oxygen using cooling exhaust gas, improves the effect that sintering flue gas recycles.
Description
Technical field
The utility model belongs to ferrous metallurgical industry technical field, is sintered cooling system more particularly, to a kind of energy-saving and emission-reducing
System.
Background technique
Sintering is always that one of the process of most serious is polluted in iron and steel enterprise, and in recent years, the high speed of end-of-pipe control technology is sent out
Exhibition, the particulate matter for discharging sintering plant, sulfur dioxide, nitrogen oxides are administered to a certain extent, but sintering plant is cold
But link still has the problem of dust-laden hot waste gas uncontrollable discharge.
Currently, some sintering plants use novel rotary forced-air cooler, the air leak rate of air curtain of cooling system is significantly reduced,
It substantially avoided pollution caused by carrying dust of leaking out, post environment made obviously to be improved.Using novel blast circular
Cooler makes it possible that upper hood of annular cooling machine is hermetically sealed, still, in addition to ring cold machine front takes the cooling hot waste gas of hot arc to recycle benefit
Except, remaining hot waste gas is still being diffused into ambient enviroment by various modes, belongs to uncontrollable discharge, this part
Waste gas residual heat is not utilized, and particulate matter therein is not also governed.If traditionally, needed dust-laden exhaust gas
It collects, qualified discharge after being purified by efficient deduster, will cause the increase of disposable investment and operating cost in this way.
In addition, the application practice of sintering flue gas circulating technology proves, when oxygen content is too low in circulating flue gas, to sintering production
The influence of process cannot be ignored, to guarantee to enter the oxygen content gas of sintering charge level, it usually needs be blended into a certain amount of normal
The gas of oxygen content avoids affecting sintering production process to improve the oxygen content of circulating flue gas.
Summary of the invention
The purpose of the utility model is to provide a kind of energy-saving and emission-reducings to be sintered cooling system, cooling for eliminating heat sinter
The uncontrollable discharge source of link, makes full use of the waste heat of sintering ore cooling waste gas, reduces system heat loss, reduces energy
Consumption；Meanwhile using exhaust gas is cooled down as circulating flue gas supplemental oxygen, improve the effect that sintering flue gas recycles.
The purpose of this utility model is realized by following technical proposals:
The energy-saving and emission-reducing of the utility model is sintered cooling system, including sintering machine, the air blast being connected with this sintering machine
Circular cooler, it is characterised in that air bells cap is equipped with above the sintering machine, the air bells cap is separated into hot wind by partition
Cover leading portion and air bells cap back segment, the air bells cap leading portion are connected with cooling waste gas circulation blower by cooling exhaust gas branch pipe,
The air bells cap back segment is connected with sintering flue gas recycling device by circulating flue gas branch pipe,
It is equipped with I section of upper cover, II section of upper cover, III section of upper cover and IV section of upper cover on the rotary forced-air cooler top, with
The bellows of the rotary forced-air cooler leading portion are connected with cooling blower I, connect with the bellows in the rotary forced-air cooler middle section
It is connected to cooling blower II, is connected with cooling blower III with the bellows of the rotary forced-air cooler back segment,
Described I section of upper cover is connected by heat exchanger I with the cooling blower I, and described II section of upper cover by changing
Hot device II is connected with the cooling blower I, and described III section of upper cover passes through deduster I and cooling waste gas circulation blower and institute
The air bells cap stated is connected, and described IV section of upper cover is connected by deduster II with the cooling blower II.
A part of the cooling exhaust gas branch pipe is connected directly between on the air bells cap leading portion, another part be connected to it is logical
To on the circulating flue gas branch pipe of the air bells cap back segment, the cooling exhaust gas branch pipe being connected on the circulating flue gas branch pipe is equipped with
Regulating valve II.
I section of the upper cover, II section of upper cover, III section of upper cover and IV section of upper cover are the totally-enclosed knot of rotary forced-air cooler
Structure upper cover.
The advantages of the utility model:
(1) energy-saving and emission-reducing of the utility model is sintered cooling system, and rotary forced-air cooler exhaust gas is passed through respectively and is followed
Ring by, introduce sintering process, be used in the way of three kinds of cooling wind, the inorganization of the cooling link of heat sinter can be eliminated
Emission source realizes cooling zero waste gas emission, saves the investment and operating cost of the portion end treatment；
(2) energy-saving and emission-reducing of the utility model is sintered cooling system, the sinter that will be lost to originally in ambient enviroment
Cooling waste gas residual heat directly utilizes, and the Exposure degree utilization rate of heat sinter can be improved, and reduces energy consumption；
(3) energy-saving and emission-reducing of the utility model is sintered cooling system, and the cooling hot waste gas of a part is blended into circulating flue gas,
The oxygen content of mixed gas can be improved under the early period for not reducing temperature, avoid circulating flue gas oxygen content too low to sintering production
The influence of process improves sintering flue gas and recycles effect；
(4) energy-saving and emission-reducing of the utility model is sintered cooling system, can create for realization sintering plant minimum discharge advantageous
Condition can be applied on sintering machine create and original, is worthy of popularization.
Detailed description of the invention
Fig. 1 is the process flow chart of the utility model.
Fig. 2 is the process flow chart that the utility model another kind sintering flue gas recycles mode.
Specific embodiment
Specific embodiment of the present utility model is further illustrated with reference to the accompanying drawing.
As shown in Figure 1, 2, the energy-saving and emission-reducing of the utility model is sintered cooling system, including sintering machine 1, with this sintering machine
1 rotary forced-air cooler 2 being connected, it is characterised in that air bells cap 8, the air bells cap 8 are equipped with above the sintering machine 1
Air bells cap leading portion and air bells cap back segment are separated by partition, the air bells cap leading portion passes through cold with cooling waste gas circulation blower 7
But exhaust gas branch pipe 27 is connected, and the air bells cap back segment passes through 28 phase of circulating flue gas branch pipe with sintering flue gas recycling device
Connection,
I section 23 of upper cover, II section 24 of upper cover, III section 25 of upper cover and upper cover are equipped on 2 top of rotary forced-air cooler
IV section 26, it is connected with cooling blower I 5 with the bellows of 2 leading portion of rotary forced-air cooler, with the rotary forced-air cooler 2
The bellows in middle section are connected with cooling blower II 10, are connected with cooling blower III with the bellows of 2 back segment of rotary forced-air cooler
11,
Described I section 23 of upper cover is connected by heat exchanger I 3 with the cooling blower I 5, II section 24 of the upper cover
It is connected by heat exchanger II 4 with the cooling blower I 5, described III section 25 of upper cover passes through deduster I 6 and cooling exhaust gas
Circulating fan 7 is connected with the air bells cap 8, and described IV section 26 of upper cover passes through deduster II 9 and the cooling blower
II 10 are connected.
A part of the cooling exhaust gas branch pipe 27 is connected directly between on the air bells cap leading portion, another part is connected to
Lead on the circulating flue gas branch pipe 28 of the air bells cap back segment, the cooling exhaust gas branch pipe being connected on the circulating flue gas branch pipe 28
27 are equipped with regulating valve II 19.
I section 23 of the upper cover, II section 24 of upper cover, III section 25 of upper cover and IV section 26 of upper cover are rotary forced-air cooler
Full-closed structure upper cover.
The first form of sintering flue gas recycling device: including the head bellows that are connected with the sintering machine 1 and
Tail bellows, the device for reducing dust II 13 being connected with the head bellows by wind box branch pipe pass through wind with the tail bellows
The flap valve 16 on the wind box branch pipe is arranged in the device for reducing dust I 12 that case branch pipe is connected, and is arranged in the device for reducing dust I
Throttle valve 17 and regulating valve I 18 between 12 and device for reducing dust II 13 in connecting tube are connected with the device for reducing dust II 13
Multi-tube dust cleaner 14, the sintering flue gas circulating fan 15 being connect with the multi-tube dust cleaner 14, with the middle part wind box branch pipe phase
The flue gas general pipeline of connection, the flue gas discharging system being connected with this flue gas general pipeline.After sintering flue gas circulating fan 15 and air bells cap 8
Section is connected by circulating flue gas branch pipe 28.Flue gas discharging system includes the main electric precipitator being connected with the flue gas general pipeline
20, the main exhaust fan 21 being connected with this main electric precipitator 20, the flue gas purification device 22 being connected with this main exhaust fan 21.
Second of form of the sintering flue gas recycling device: including the bellows being connected with the sintering machine 1, with
The flue gas general pipeline that the wind box branch pipe of the bellows is connected, the main electric precipitator 20 being connected with this flue gas general pipeline, with the master
The main exhaust fan 21 that electric precipitator 20 connects, the three-way pipeline connecting with the main exhaust fan 21 are connected with this three-way pipeline
Flue gas purification device 22, the sintering flue gas circulating fan 15 being connected with this three-way pipeline, sintering flue gas circulating fan 15 with
8 back segment of air bells cap is connected by circulating flue gas branch pipe 28.
Energy-saving and emission-reducing is sintered cooling procedure, includes the following steps:
(1) the cooling exhaust gas of rotary forced-air cooler 2 is segmented and is utilized, I section 23 of upper cover and II section 24 of upper cover of hot waste gas
2 leading portion bellows of rotary forced-air cooler are returned after heat exchanger respectively as cooling wind；
(2) III section 25 of upper cover of hot waste gas returns to sintering charge level and uses for sintering process, and III section 25 of a portion upper cover
Hot waste gas is blended into the sintering flue gas recycled in proportion；
(3) IV section 26 of upper cover of hot waste gas returns to 2 middle section bellows of rotary forced-air cooler as cooling wind；
(4) sintering flue gas is recycled including two kinds of concrete forms: one is directly take to recycle from sintering machine wind box
Flue gas, 1 head bellows of sintering machine, tail bellows flue gas after device for reducing dust collects, via multi-tube dust cleaner 14, sintering cigarette
Gas circulating fan 15 is sent to 8 back segment of air bells cap on sintering machine 1, and the flue gas of remaining bellows enters flue gas discharging system, via master
Electric precipitator 20, main exhaust fan 21 go to flue gas purification device 22, and purified flue gas is discharged into atmosphere；Another kind is whole bellows
Flue gas after the pooling via main electric precipitator 20, main exhaust fan 21 be discharged, from main exhaust fan 21 be discharged flue gas in take one
Flue gas recirculation is divided to utilize, circulating flue gas enters 8 back segment of air bells cap on sintering machine 1 through sintering flue gas circulating fan 15, from main row
Remaining flue gas that blower 21 is discharged is discharged into atmosphere after the purification of flue gas purification device 22.
The utility model eliminates the rain-proof cover structure of traditional ring cold machine, will using the cooler upper cover of full-closed structure
Upper cover is divided into four sections, and partition wall is set between two sections of adjacent upper covers, and the hot waste gas in each section of upper cover is collected to be connect with upper cover
In hot air duct, the features such as according to the temperature of each section of exhaust gas, dustiness, it is used after being handled respectively by corresponding mode,
Not only the waste heat of cooling exhaust gas had been taken full advantage of, but also has cut off the channel for making cooling exhaust gas spill into ambient enviroment.
The energy-saving and emission-reducing of the utility model is sintered cooling system, change traditional ring cold machine multistage is cooling, air blast bellows with
Upper cover is segmented corresponding mode and is correspondingly arranged cooling blower I three sections before, during and after being divided into the bellows of rotary forced-air cooler 2
5, cooling blower II 10, cooling blower III 11, bellows segmentation and upper cover segmentation be not corresponding, is derived from 2 upper cover I of rotary forced-air cooler
Section 23, II section 24 of upper cover of hot waste gas collect after heat exchanger I 3, heat exchanger II 4 respectively, are sent to drum by cooling blower I 5
2 leading portion bellows of wind circular cooler are as cooling wind；I section 23 of upper cover, the heatrejection of II section 24 of upper cover are higher, pass through heat exchange
Recycling for exhaust gas further improves exhaust gas temperature afterwards, can utilize its waste heat for generating steam, and the approach of steam utilization has
Power generation, driven equipment, heating etc..
The energy-saving and emission-reducing of the utility model is sintered cooling system, and the cooling wind of 2 back segment of rotary forced-air cooler is to come from
The surrounding air of cooling blower III 11, the hot waste gas that IV section 26 of upper cover are introduced into deduster II 9, the hot waste gas after dedusting by
Cooling blower II 10 is sent to 2 middle section bellows of rotary forced-air cooler as cooling wind, and the hot waste gas that III section 25 of upper cover, which is introduced into, to be removed
Dirt device I 6, the hot waste gas after dedusting are sent to sintering air bells cap 8 by cooling down waste gas circulation blower 7, improve in this way
The exhaust gas temperature of sintering machine 1 is gone to, hot gas sintering effect is strengthened.
The utility model is arranged air bells cap 8 above sintering machine 1, air bells cap 8 be divided to two sections, two sections of front and back and between set every
Plate, 8 leading portion of air bells cap are connect with cooling waste gas circulation blower 7, and a part of hot waste gas is directly entered 8 leading portion of air bells cap, remaining
Part is blended into the sintering flue gas recycled by a certain percentage；Regulating valve II 19 is set on cooling exhaust gas branch pipe 27, for adjusting
The ratio that cooling exhaust gas is blended into, cooling exhaust gas and circulating flue gas enter 8 back segment of air bells cap after mixing；In this way, can
It makes full use of waste gas residual heat to carry out hot gas sintering, and the oxygen content of circulating flue gas can be improved, improve what sintering flue gas recycled
Effect.
Embodiment 1
As shown in Figure 1, the upper cover of rotary forced-air cooler 2 is divided into four sections by the utility model, in two sections of adjacent upper covers
Between set partition wall, the hot waste gas in each section of upper cover is collected to be connect in hot air duct with upper cover, according to the temperature of each section of exhaust gas,
The features such as dustiness, is used after being handled respectively by corresponding mode.
Three sections before, during and after the bellows of rotary forced-air cooler 2 are divided into, it is correspondingly arranged cooling blower I 5, cooling blower II
10, cooling blower III 11, bellows segmentation and upper cover segmentation be not corresponding, is derived from I section 23 of 2 upper cover of rotary forced-air cooler, upper cover II
The hot waste gas of section 24 collects after heat exchanger I 3, heat exchanger II 4 respectively, is sent to rotary forced-air cooler by cooling blower I 5
2 leading portion bellows are as cooling wind.
The cooling wind of 2 back segment of rotary forced-air cooler is the surrounding air from cooling blower III 11, IV section 26 of upper cover
Hot waste gas is introduced into deduster II 9, and the hot waste gas after dedusting is sent to 2 middle section of rotary forced-air cooler by cooling blower II 10
Bellows are as cooling wind.The hot waste gas that III section 25 of 2 upper cover of rotary forced-air cooler is introduced into deduster I 6, the heat after dedusting
Exhaust gas is sent to sintering air bells cap 8 by cooling down waste gas circulation blower 7.
Air bells cap 8 is set above sintering machine 1, and air bells cap 8 is for collecting the cooling exhaust gas recycled and sintering flue gas.
Air bells cap 8, which is divided between two sections, two sections of front and back, sets partition, and 8 leading portion of air bells cap and cooling waste gas circulation blower 7 pass through cooling exhaust gas branch
Pipe is connected, and 8 back segment of air bells cap is connected with sintering flue gas circulating fan 15 by circulating flue gas branch pipe 28.
The cooling exhaust gas branch pipe of a part is connected directly between air bells cap 8 between cooling waste gas circulation blower 7 and the air bells cap 8
On leading portion；The cooling exhaust gas branch pipe 27 of another part is connected on circulating flue gas branch pipe 28, leads to 8 back segment of air bells cap, this part is cold
But exhaust gas branch pipe 27 is equipped with regulating valve II 19, and the ratio being blended into for adjusting cooling exhaust gas, cooling exhaust gas and circulating flue gas are mixed
Enter 8 back segment of air bells cap after even.
Sintering flue gas is recycled including two kinds of concrete forms, and present embodiment is directly from 1 head bellows of sintering machine, machine
A tail wind case takes the flue gas recycled, and the flue gas of tail bellows enters device for reducing dust I 12, and the flue gas of head bellows enters depositing dust dress
Set II 13, head bellows, tail bellows branch pipe not only connected device for reducing dust but also connected flue gas general pipeline, turnover panel is set on wind box branch pipe
Valve 16, the connecting tube by the trend of the open and close control flue gas of flap valve 16, among device for reducing dust I 12 and device for reducing dust II 13
Throttle valve 17 and regulating valve I 18 are set on road, for adjusting the ratio of flue gas end to end.Circulating flue gas converges in device for reducing dust II 13
After collection, 8 back segment of sintering flue gas cover is sent to via multi-tube dust cleaner 14, sintering flue gas circulating fan 15.The flue gas of remaining bellows passes through
Flue gas purification device 22 is gone to by main electric precipitator 20, main exhaust fan 21, purified flue gas is discharged into atmosphere.
Embodiment 2
As shown in Fig. 2, other are the same as embodiment 1 in addition to the embodiment that sintering flue gas recycles is different.
The another embodiment mode that sintering flue gas recycles is that it is total that the flue gas of all bellows is collected to flue gas
Pipe, all flue gases are derived from main exhaust fan 21 and flue gas purification device through main electric precipitator 20,21 outlet of main exhaust fan, circulating flue gas
Three-way pipeline between 22, in the flue gas that main exhaust fan 21 is discharged, a part through sintering flue gas circulating fan 15 is sent to sintering cigarette
8 back segment of gas hood, rest part go to flue gas purification device 22, and purified flue gas is discharged into atmosphere.
The energy-saving and emission-reducing of the utility model is sintered cooling system, and rotary forced-air cooler exhaust gas is passed through to circulation benefit respectively
It uses, introduce sintering process, be used as three kinds of modes of cooling wind, the uncontrollable discharge of the cooling link of heat sinter can be eliminated
Source realizes cooling zero waste gas emission, saves the investment and operating cost of the portion end treatment；The utility model will
The sintering ore cooling waste gas waste heat being originally lost in ambient enviroment directly utilizes, and the Exposure degree that heat sinter can be improved utilizes
Rate reduces energy consumption；The cooling hot waste gas of a part is blended into circulating flue gas by the utility model, can under the early period for not reducing temperature,
The oxygen content for improving mixed gas avoids the too low influence to sintering production process of circulating flue gas oxygen content, improves sintering flue gas
Recycle effect；The utility model can be to realize that sintering plant minimum discharge creates favorable conditions, in burning create and original
It can apply, be worthy of popularization on knot machine.
Claims (3)
1. a kind of energy-saving and emission-reducing sintering cooling system, including sintering machine, the rotary forced-air cooler being connected with this sintering machine,
It is characterized in that being equipped with air bells cap above the sintering machine, the air bells cap is separated into air bells cap leading portion and hot wind by partition
Cover back segment, the air bells cap leading portion are connected with cooling waste gas circulation blower by cooling exhaust gas branch pipe, the air bells cap
Back segment is connected with sintering flue gas recycling device by circulating flue gas branch pipe,
It is equipped with I section of upper cover, II section of upper cover, III section of upper cover and IV section of upper cover on the rotary forced-air cooler top, and it is described
The bellows of rotary forced-air cooler leading portion are connected with cooling blower I, are connected with the bellows in the rotary forced-air cooler middle section
Cooling blower II is connected with cooling blower III with the bellows of the rotary forced-air cooler back segment,
Described I section of upper cover is connected by heat exchanger I with the cooling blower I, and described II section of upper cover passes through heat exchanger
II is connected with the cooling blower I, described III section of upper cover by deduster I and cooling waste gas circulation blower with it is described
Air bells cap is connected, and described IV section of upper cover is connected by deduster II with the cooling blower II.
2. energy-saving and emission-reducing according to claim 1 is sintered cooling system, it is characterised in that the cooling exhaust gas branch pipe
A part be connected directly between on the air bells cap leading portion, another part is connected to the circulating flue gas for leading to the air bells cap back segment
On branch pipe, the cooling exhaust gas branch pipe being connected on the circulating flue gas branch pipe is equipped with regulating valve II.
3. energy-saving and emission-reducing according to claim 1 is sintered cooling system, it is characterised in that I section of the upper cover, upper cover
II section, III section of upper cover and IV section of upper cover are the full-closed structure upper cover of rotary forced-air cooler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822009514.XU CN209147748U (en) | 2018-12-03 | 2018-12-03 | Energy-saving and emission-reducing is sintered cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822009514.XU CN209147748U (en) | 2018-12-03 | 2018-12-03 | Energy-saving and emission-reducing is sintered cooling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209147748U true CN209147748U (en) | 2019-07-23 |
Family
ID=67288622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822009514.XU Active CN209147748U (en) | 2018-12-03 | 2018-12-03 | Energy-saving and emission-reducing is sintered cooling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209147748U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109373771A (en) * | 2018-12-03 | 2019-02-22 | 中冶北方（大连）工程技术有限公司 | Energy-saving and emission-reducing is sintered cooling system |
| CN111678351A (en) * | 2020-06-03 | 2020-09-18 | 首钢集团有限公司 | Device and method for cooling sintered ore by waste gas of circular cooler |
| CN109373771B (en) * | 2018-12-03 | 2024-04-19 | 中冶北方（大连）工程技术有限公司 | Energy-saving emission-reducing sintering cooling system |
-
2018
- 2018-12-03 CN CN201822009514.XU patent/CN209147748U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109373771A (en) * | 2018-12-03 | 2019-02-22 | 中冶北方（大连）工程技术有限公司 | Energy-saving and emission-reducing is sintered cooling system |
| CN109373771B (en) * | 2018-12-03 | 2024-04-19 | 中冶北方（大连）工程技术有限公司 | Energy-saving emission-reducing sintering cooling system |
| CN111678351A (en) * | 2020-06-03 | 2020-09-18 | 首钢集团有限公司 | Device and method for cooling sintered ore by waste gas of circular cooler |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104034175B (en) | A kind of energy-saving and emission-reducing sintering process | |
| CN101024143A (en) | Sinter-smoke circulation collected desulfurizing method and apparatus | |
| CN110592398A (en) | Ferronickel production facility | |
| CN209147748U (en) | Energy-saving and emission-reducing is sintered cooling system | |
| CN110068224A (en) | The off-gas recovery of grate down-draft drying zone and preheating section utilizes and exhaust system | |
| CN206683423U (en) | A kind of sintering circular-cooler flue gas waste heat utilization device | |
| CN207331009U (en) | A kind of quick lime feed opening dust-extraction unit | |
| CN203518640U (en) | Smoke collection and prevention and dust removal device for AOD smelting furnace and medium frequency smelting furnace | |
| CN210036270U (en) | Flue gas recycling and discharging system for air draft drying section and preheating section of chain grate machine | |
| CN108507293B (en) | A kind of energy-saving biomass drying equipment | |
| CN109373771A (en) | Energy-saving and emission-reducing is sintered cooling system | |
| CN109373771B (en) | Energy-saving emission-reducing sintering cooling system | |
| CN105885877A (en) | Method and system for reducing nitric oxide in coke-oven exhaust gas | |
| CN210886172U (en) | Ferronickel production facility | |
| CN207936647U (en) | A kind of bag-type dust removal system for drying coke using hot-blast stove low-temperature flue gas waste heat | |
| CN2532319Y (en) | Blowing rate distribution regulating valve | |
| CN207913437U (en) | The cooling down of a kind of dust-removing waste gas cools down and utilizes device | |
| CN216925176U (en) | Sintering flue gas internal circulation system | |
| CN209588666U (en) | A kind of limekiln kiln hood dust-extraction unit | |
| CN219014946U (en) | Flue gas recycling system of belt roasting machine | |
| CN207570317U (en) | A kind of sintering machine Novel air-extracting manifold system | |
| CN215725074U (en) | Hot air recycling system of chain grate machine-circular cooler | |
| CN207805904U (en) | VOCs processing units suitable for accurate coating apparatus | |
| CN2295178Y (en) | Electric-oven smoke collecting hood | |
| CN209726840U (en) | A kind of device of more sintering flue gases cycle sharing circulating fan |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |