CN207351230U - A kind of flue gas tandem recycles ring cold machine - Google Patents
A kind of flue gas tandem recycles ring cold machine Download PDFInfo
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- CN207351230U CN207351230U CN201721351708.7U CN201721351708U CN207351230U CN 207351230 U CN207351230 U CN 207351230U CN 201721351708 U CN201721351708 U CN 201721351708U CN 207351230 U CN207351230 U CN 207351230U
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Abstract
The utility model discloses a kind of flue gas tandem to recycle ring cold machine, including：The cold cover of the first ring being arranged on ring cold machine high-temperature region, the first heat absorption air hose of the cold cover of first ring and high-temperature flue gas heat reclaim unit is connected, connects the high-temperature flue gas heat reclaim unit and ring cold machine high-temperature region cooling air channel and/or the first backheat air hose of ring cold machine high-temperature region cooling blower；The cold cover of the second ring being arranged in ring cold machine middle warm area, connects the second heat absorption air hose of the cold cover of second ring and medium temperature fuel gas heat recycling device, and connect the medium temperature fuel gas heat recycling device and the sintering device flue gas circulatory system send hot blast pipe；The exhaust tube being arranged on ring cold machine low-temperature space, the exhaust tube are connected to ring cold machine middle warm area cooling blower and/or ring cold machine low-temperature space cooling blower.The ring cold machine can not only effectively improve the temperature of ring cold machine discharge flue gas, improve the efficiency that flue gas recycles, moreover, the exhausted air quantity externally discharged can be reduced further, achieve the purpose that environmental protection.
Description
Technical field
Field of iron and steel smelting is the utility model is related to, more particularly to a kind of flue gas tandem recycles ring cold machine.
Background technology
In smelting iron and steel, ring cold machine is used for the material for cooling down sintering.Ring cold machine generally circular ring shape, the material of sintering lead to
Cross trolley to run in ring cold machine one week, complete cooling and discharging.During work, the material for completing sintering is laid in the comb of trolley
On plate, trolley surrounds the uniform rotation of ring cold machine center.Meanwhile cold (or heat) wind that is blown into of air blower from bottom to top through grate plate into
Enter trolley, after carrying out sufficient heat exchange with the material in grate plate, discharged as heat smoke from exhaust pipe.
High-temperature region, middle warm area, low-temperature space and non-cooled area can be divided into inside ring cold machine, the material that sintering machine completes sintering exists
High-temperature region is transported on the trolley of ring cold machine, and at this time, temperature of charge is between 700 DEG C -800 DEG C, and the cooling wind of room temperature is at this
Discharged with after material sufficient heat exchange, becoming the flue gas for having certain temperature from exhaust pipe high-temperature region.
Trolley is in the flue-gas temperature that high-temperature region is discharged between 350~500 DEG C；Operation is to middle warm area, through the cold of high-temperature region
But, temperature of charge decreases, in the flue-gas temperature that middle warm area is discharged between 200 DEG C -350 DEG C；After middle warm area, trolley
Operation is to low-temperature space, and temperature of charge is further relatively low at this time, and the temperature of low-temperature space discharge flue gas is generally below 200 DEG C.Through low temperature
Qu Hou, temperature of charge are down to less than 150 DEG C, and subsequent processing is admitted in non-cooled area, complete material cooling.
In material cooling procedure, have substantial amounts of heat smoke and be directly discharged into air, not only cause atmosphere pollution, also result in
The waste of the energy.For environmental protection and energy saving, part iron enterprise is recycled the heat smoke of high-temperature region, is sent out using the thermal energy of high-temperature flue gas
Electricity, producing steam.The utilization rate of high-temperature flue gas thermal energy and the temperature close relation of flue gas, flue-gas temperature is higher, heat utilization
Efficiency is higher, therefore, how to improve the temperature of ring cold machine discharge flue gas, is of great significance to the recycling of flue gas.
Applicant proposed a kind of ring cold machine flue gas reuse method and system and ring cold machine, it includes being arranged on ring cold
Be used to collect the cold cover of ring of flue gas in machine middle warm area, be respectively communicated with the cold cover of ring and ring cold machine high-temperature region cooling air channel rear air hose and
Preceding air hose, circulating fan is set between rear air hose and preceding air hose, the medium temperature flue gas discharged by collecting ring cold machine middle warm area, by this
Cooling wind of the part medium temperature flue gas as ring cold machine high-temperature region.In this way, itself has the medium temperature flue gas and high temperature substrate of certain temperature
The temperature for the high-temperature flue gas discharged after material heat exchange, is discharged after directly utilizing cold front heavy rain material relative to former ring cold machine high-temperature region
The temperature of heat smoke will be higher by very much, regathered the part high-temperature flue gas and generated electricity, heated up water etc. and recycle, and effectively improve hot profit
Efficiency.
But this ring cold machine flue gas reuse method and system and ring cold machine are merely with the cigarette of ring cold machine high-temperature region
The flue gas of gas, ring cold machine middle warm area and low-temperature space can still be discharged into air, and ring cold machine, which still has, causes atmosphere pollution and thermal energy
The problem of waste.
Utility model content
The purpose of this utility model is to provide a kind of flue gas tandem and recycles ring cold machine.The ring cold machine can not only be effective
Improve the temperature of ring cold machine discharge flue gas, improve the efficiency that flue gas recycles, moreover, can further reduce externally discharge it is useless
Tolerance, achievees the purpose that environmental protection.
To achieve the above object, the utility model provides a kind of flue gas tandem and recycles ring cold machine, including：
It is arranged on and is used for the cold cover of the first ring for collecting flue gas on ring cold machine high-temperature region, connects the cold cover of first ring and high temperature
First heat absorption air hose of fuel gas heat recycling device, connects the high-temperature flue gas heat reclaim unit and is cooled down with ring cold machine high-temperature region
Air passage and/or the first backheat air hose of ring cold machine high-temperature region cooling blower；
It is arranged on and is used for the cold cover of the second ring for collecting flue gas in ring cold machine middle warm area, connects the cold cover of second ring and medium temperature
Second heat absorption air hose of fuel gas heat recycling device, connects the medium temperature fuel gas heat recycling device and sintering device flue gas cyclic system
System send hot blast pipe；
The exhaust tube for being used for collecting and convey flue gas on ring cold machine low-temperature space is arranged on, the exhaust tube is connected to ring cold machine
Middle warm area cooling blower and/or ring cold machine low-temperature space cooling blower.
Preferably, further include the cold cover of connection first ring and/or the cold cover of the second ring is inhaled with the 3rd of ignition furnace of sintering machine
Hot blast pipe.
Preferably, the high-temperature flue gas heat reclaim unit is that can recycle the thermal energy of high-temperature flue gas to produce more than steam
Heat boiler.
Preferably, the medium temperature fuel gas heat recycling device is low with what is generated electricity for that can recycle the thermal energy of medium temperature flue gas
Temperature cogeneration system.
Preferably, the sintering device flue gas circulatory system includes being arranged on flue gas cover on sintering pallet face, and described
The flue gas recirculation air hose of flue gas cover connection and the flue gas recirculation blower fan arranged on the flue gas recirculation air hose, it is described to send hot blast pipe to connect
Pass to the flue gas recirculation blower fan.
Preferably, further include and be arranged on ring cold machine by, discharging except being used to flue gas being delivered to sinter machine discharge end dedusting system at dirt pits
The 4th heat absorption air hose.
Preferably, the sinter machine discharge end dedusting system is provided with bag filter.
Preferably, the ring cold machine, which is equipped with high-temperature region at least three, is used to collecting the cold cover of the first ring of flue gas, and described the
The radial end face of the cold cover of one ring is door type, and circumferential length is suitable with the length of ring cold machine high-temperature region, the cold cover cover of the first ring
In the high-temperature area of ring cold machine, higher than trolley position, its top end surface is equipped with the smoke evacuation of connection high-temperature flue gas heat reclaim unit
Mouthful.
Preferably, the ring cold machine is equipped with least two in middle warm area is used to collecting the cold cover of the second ring of flue gas, and described the
The radial end face of the cold cover of two rings is door type, and circumferential length is suitable with the length of ring cold machine middle warm area, the cold cover cover of the second ring
In the medium temperature region of ring cold machine, higher than trolley position, its top end surface is equipped with the smoke evacuation of connection medium temperature fuel gas heat recycling device
Mouthful.
Preferably, the exhaust tube is circular empty barrel structure, circumferential length and the ring cold machine low-temperature space of institute's coverage area
Length is suitable.
Preferably, between exhaust tube and ring cold machine middle warm area cooling blower and/or ring cold machine the low-temperature space cooling blower
Equipped with tee pipe fitting, exhaust tube described in the first communication of the tee pipe fitting, the alternate path of the tee pipe fitting is normal
Warm air entrance, the third path connection ring cold machine middle warm area cooling blower and/or ring cold machine low-temperature space of the tee pipe fitting are cold
But wind turbine,
Preferably, the first path of the tee pipe fitting is equipped with expand with heat and contract with cold compensator and the first electrically operated valve, described
The alternate path of tee pipe fitting is equipped with the second electrically operated valve.
Ring cold machine provided by the utility model is equipped with the cold cover of the first ring corresponding to high-temperature region, corresponding to the of middle warm area
The cold cover of two rings and the exhaust tube corresponding to low-temperature space, wherein, the high-temperature flue gas collected by the cold cover of the first ring can be inhaled by first
Hot blast pipe is delivered to high-temperature flue gas heat reclaim unit, and after its heat is partially recovered, the flue gas that temperature reduces can be by the
One backheat air hose returns to high-temperature region cooling air channel and/or high-temperature region cooling blower, material is carried out after being mixed with normal temperature air cold
But, realization recycles；The medium temperature flue gas collected by the cold cover of the second ring can be delivered to medium temperature flue gas heat by the second heat absorption air hose
Retracting device is measured, after its heat is partially recovered, the flue gas that temperature reduces is by sending hot blast pipe to be delivered to the flue gas of sintering machine
The circulatory system, is recycled in sintering machine；The low-temperature flue gas collected by exhaust tube is delivered to the cooling of ring cold machine middle warm area
Wind turbine and/or ring cold machine low-temperature space cooling blower, recycle low-temperature flue gas tandem, so as to fulfill the not outer row of exhaust gas.In this way,
All flue gases of the high, medium and low warm area discharge of ring cold machine can be collected, and it is a pair of using these flue gases as different purposes, one
Respective system should be entered, the temperature of ring cold machine discharge flue gas can not only be effectively improved, improve the efficiency that flue gas recycles, and
And the exhausted air quantity externally discharged can be further reduced, achieve the purpose that environmental protection.
Brief description of the drawings
Fig. 1 is a kind of radial cross-section of the low-temperature space of ring cold machine disclosed in the utility model embodiment；
Fig. 2 is the integral planar schematic diagram of ring cold machine shown in Fig. 1；
Fig. 3 is that the hot waste gas of ring cold machine shown in Fig. 1 utilizes flow chart.
In figure：
1. 2. grate plate of trolley, 3. cooling blower, 4. first rings, 5. high-temperature flue gas heat reclaim units 6. first of cold cover are inhaled
Hot blast pipe 7. first backheat air hose, 8. second rings cold cover 9. medium temperature fuel gas heat recycling devices 10. second heat absorption air hose 11.
12. exhaust tube 13. the 4th of hot blast pipe heat absorption 14. muffler 15. of air hose is sent to expand with heat and contract with cold 16. profiled tee joint pipe of compensator
Part
A. high-temperature flue gas takes air port B. medium temperature flue gases to take air port C. low-temperature flue gas to take air port D. backheat duct collars center
Embodiment
In order to make those skilled in the art more fully understand the utility model, below in conjunction with the accompanying drawings and it is embodied
The utility model is described in further detail for mode.
Herein, the term such as " upper and lower, inside and outside " is the establishment based on position relationship shown in the drawings, with reference to the accompanying drawings
Difference, corresponding position relationship is also possible to change therewith, therefore, can not be understood as to the exhausted of protection domain
To limiting；Moreover, the relational terms of such as " first " and " second " or the like are used merely to one with another with identical
The component of title distinguishes, without necessarily requiring or implying between these components there are any this actual relation or
Sequentially.
Ring cold machine provided in this embodiment generally circular ring shape, the material of sintering run one by trolley in ring cold machine
In week, complete cooling and discharging.
Please refer to Fig.1, be that radially (direction ring cold machine center) sectional view, the material for completing sintering are laid in platform to ring cold machine
In the grate plate 2 of car 1, trolley 1 surrounds the uniform rotation of ring cold machine center, meanwhile, cold (or heat) wind that cooling blower 3 is blown into from it is lower to
On through grate plate 2 enter trolley 1, with grate plate 2 on material carry out sufficient heat exchange after, as heat smoke from exhaust pipe discharge.
Please also refer to Fig. 2, for the integral planar schematic diagram of ring cold machine, ring cold machine is divided into high-temperature region, middle warm area, low-temperature space
With non-cooled area, the material that sintering machine (not shown) completes sintering is transported in high-temperature region on the trolley 1 of ring cold machine, this
When, temperature of charge is between 700 DEG C -800 DEG C, and behind the high-temperature region and material sufficient heat exchange, become has the cooling wind of room temperature
The flue gas of certain temperature, is discharged from exhaust pipe.
The flue-gas temperature that trolley 1 is discharged in high-temperature region is between 350~500 DEG C；Operation is to middle warm area, through the cold of high-temperature region
But, temperature of charge decreases, in the flue-gas temperature that middle warm area is discharged between 200 DEG C -350 DEG C；After middle warm area, trolley
2 operations are to low-temperature space, and temperature of charge is further relatively low at this time, and the temperature of low-temperature space discharge flue gas is generally below 200 DEG C.Through low temperature
Qu Hou, temperature of charge are down to less than 150 DEG C, and subsequent processing is admitted in non-cooled area, complete material cooling.
Ring cold machine is equipped with the cold cover 4 of the first ring above high-temperature region, for collecting high-temperature flue gas, while equipped with the first ring is cold
The first heat absorption air hoses 6 that cover 4 connect with high-temperature flue gas heat reclaim unit 5, and be equipped with high-temperature flue gas heat reclaim unit 5 and
Ring cold machine high-temperature region cooling air channel and/or the first backheat air hose 7 of ring cold machine high-temperature region cooling blower connection.By the cold cover of the first ring
4 high-temperature flue gas collected can be delivered to high-temperature flue gas heat reclaim unit 5 by the first heat absorption air hose 6, its heat is returned by part
After receipts, the flue gas that temperature reduces high-temperature region cooling air channel can be returned to by the first backheat air hose 7 and/or high-temperature region cools down wind
Machine, cools down material after being mixed with normal temperature air, and realization recycles.
Itself there is the return flue gas and the temperature for the high-temperature flue gas discharged after high-temperature material heat exchange of certain temperature, relatively
The temperature of heat smoke is discharged after former ring cold machine high-temperature region is directly using cold front heavy rain material will be higher by very much, regather the part
The recyclings such as high-temperature flue gas is generated electricity, producing steam, can effectively improve the efficiency of flue gas recycling.
High-temperature flue gas heat reclaim unit 5 can recycle the thermal energy of high-temperature flue gas to produce the device of steam, example
Such as direct connection bonnet formula waste heat boiler.
Ring cold machine is equipped with the cold cover 8 of the second ring above middle warm area, for collecting medium temperature flue gas, while equipped with the second ring is cold
The second heat absorption air hose 10 that cover 8 is connected with medium temperature fuel gas heat recycling device 9, and be equipped with medium temperature fuel gas heat recycling device 9
What is connected with the sintering device flue gas circulatory system send hot blast pipe 11.The medium temperature flue gas collected by the cold cover 8 of the second ring can be inhaled by second
Hot blast pipe 10 is delivered to medium temperature fuel gas heat recycling device 9, and after its heat is partially recovered, the flue gas that temperature reduces is by sending
Hot blast pipe 11 is delivered to the smoke circulating system of sintering machine, is recycled in sintering machine.
The sintering device flue gas circulatory system includes the flue gas cover being arranged on sintering pallet face, the flue gas connected with flue gas cover
Air hose and the flue gas recirculation blower fan arranged on flue gas recirculation air hose are circulated, send hot blast pipe to be connected to flue gas recirculation blower fan.
Medium temperature fuel gas heat recycling device 9 can be the thermal energy that can recycle medium temperature flue gas with the device to generate electricity, example
Such as low-temperature waste heat power generation system.
Ring cold machine is equipped with the exhaust tube 12 for being used for collecting and convey flue gas above low-temperature space, and it is cold that exhaust tube 12 is connected to ring
Machine middle warm area cooling blower and/or ring cold machine low-temperature space cooling blower.It is cold that the low-temperature flue gas collected by exhaust tube 12 is delivered to ring
Machine middle warm area cooling blower and/or ring cold machine low-temperature space cooling blower, recycle low-temperature flue gas tandem, so as to fulfill exhaust gas
Not outer row.
In addition, ring cold machine is additionally provided with the cold cover of the first ring of connection and/or the cold cover of the second ring is inhaled with the 3rd of ignition furnace of sintering machine
Hot blast pipe (not shown), and ring cold machine is arranged on by, discharging except being used to flue gas being delivered to sinter machine discharge end dedusting system at dirt pits
4th heat absorption air hose 13 of system, sinter machine discharge end dedusting system are provided with bag filter.
Specifically, ring cold machine is equipped with high-temperature region is used for the cold cover 4 of the first ring for collecting flue gas, the cold cover of the first ring at least three
4 radial end face is door type, and circumferential length is suitable with the length of ring cold machine high-temperature region, and the cold cover 4 of the first ring covers on ring cold machine
High-temperature area, higher than the position of trolley 4, its top end surface is equipped with the smoke outlet of connection high-temperature flue gas heat reclaim unit 5, utilizes
The cold cover of ring collects flue gas, and flue gas can be avoided to be reduced with temperature after air contact, ensure flue-gas temperature.
After the utilization of direct connection bonnet formula waste heat boiler, 150 DEG C or so of part hot wind returns in annular main air duct flue gas.
Ring cold machine is equipped with the cold cover 8 of the second ring for being used for collecting flue gas at least two, the radial direction of the cold cover 8 of the second ring in middle warm area
End face is door type, and circumferential length is suitable with the length of ring cold machine middle warm area, and the cold cover 8 of the second ring covers on the middle warm area of ring cold machine
Domain, higher than the position of trolley 1, its top end surface is equipped with the smoke outlet of connection medium temperature fuel gas heat recycling device 9, utilizes the cold cover of ring
Flue gas is collected, flue gas can be avoided to be reduced with temperature after air contact, ensures flue-gas temperature.
For flue gas after low temperature exhaust heat ORC gas-to electricities, flue gas enters the smoke circulating system of sintering machine, carries out circulation profit
With.
Exhaust tube 12 is circular empty barrel structure, and the circumferential length of institute's coverage area is suitable with the length of ring cold machine low-temperature space.
Abnormal shape three is equipped between exhaust tube 12 and ring cold machine middle warm area cooling blower and/or ring cold machine low-temperature space cooling blower
Way pipe fitting 16, the first communication exhaust tube 12 of Spcial three-way pipe 16, the alternate path of Spcial three-way pipe 16 is room temperature
Air intake, the third path connection ring cold machine middle warm area cooling blower and/or ring cold machine low-temperature space of Spcial three-way pipe 16 are cold
But wind turbine 3, heat smoke are introduced into 3 entrance of cooling blower, blast annular flue collector from the outlet of cooling blower 3, this partial fume is not
Externally discharge.
Since cooling blower 3 is equipped with normal temperature air entrance, the first path of Spcial three-way pipe 16 is equipped with first
Electrically operated valve, the alternate path of Spcial three-way pipe 16 are equipped with the second electrically operated valve, pass through the first electrically operated valve and the second electricity
Movable valve can adjust the ratio and flow of low-temperature flue gas and normal temperature air respectively, so as to be controlled to the temperature of mixed airflow.
In addition, the valve at its horizontal segment is used to balance the pressure into the two-way branch pipe of cooling blower.
, can be on normal temperature air inlet setting muffler 14, the first path of Spcial three-way pipe 16 to abate the noise
Equipped with the compensator 15 that expands with heat and contract with cold, by the compensator 15 that expands with heat and contract with cold exhaust tube and tee pipe fitting can be avoided to make in the heating of flue gas
Deform under and the building block that other are attached thereto is impacted.
Please refer to Fig.3, Fig. 3 is that the hot waste gas of ring cold machine shown in Fig. 1 utilizes flow chart.
As shown in the figure, ring cold machine is equipped with six cooling blowers below grate plate 2, it is respectively No.1 wind turbine, No. two wind turbines, three
Number wind turbine, No. four wind turbines, No. five wind turbines and No. six wind turbines, these wind turbines are all that can suck cold heat wind, and are blasted and cooled down
Circulating fan in air passage.
The utilization of the cold and hot exhaust gas of ring is utilized by waste heat boiler producing steam, igniting combustion supporting, low temperature exhaust heat ORC power generations, tandem altogether
Four parts form.
Part I, the heat of ring cold machine high temperature section hot waste gas is using the recycling thermal energy production of direct connection bonnet formula waste heat boiler technology
Raw steam, returns to ring cold machine flue after flue gas heat recycling or cold No. two wind turbines of ring re-use.
Part II, the ignition furnace that about 350 DEG C of part high-temperature flue gas of ring cold machine high temperature section can lead to sintering machine are used to light a fire
The insulation of combustion-supporting or hot wind.
Part III, the heat of low-temperature zone hot waste gas is remaining using low temperature exhaust heat ORC generation technologies recycling thermal energy in ring cold machine
Exhaust gas after recuperation of heat enters flue gas recirculation sintering system, and sintering machine is sent to after converging the flue gas of sintering cycle flue by wind turbine
In flue gas cover on trolley face.
Part IV, ring cold machine low-temperature zone exhaust gas, utilizes technology by exhaust gas as cooling wind by ring cold machine wind turbine tandem
Secondary use.
In addition, ring cold machine by, discharging except dirt pits exhaust gas enters sinter machine discharge end dedusting system, and to set bag filter to handle surplus
Under flue gas, make the not outer row of the cold exhaust gas of ring.
The utility model collects the flue gas of ring cold machine high-temperature region discharge, and partly the flue gas with certain temperature is as ring cold machine phase
The cooling wind of humidity province is answered, itself there is the flue gas of certain temperature with after the scorching hot material sufficient heat exchange in each humidity province, becoming
Heat smoke with higher temperature, regathers that the part high-temperature flue gas is generated electricity, producing steam etc. recycles, and effectively improves flue gas
The efficiency of recycling.
Meanwhile the utility model also collects the flue gas that low-temperature space discharges in ring cold machine final stage exhaust tube, passes through bypass
System enters above No. four, No. five two cooling blowers, recycles low-temperature flue gas tandem, is arranged so as to fulfill exhaust gas is not outer,
The exhausted air quantity externally discharged can be further reduced, achievees the purpose that environmental protection.
Above-described embodiment is only the preferred solution of the utility model, is specifically not limited thereto, on this basis can basis
Actual needs is made with targetedly adjusting, so as to obtain different embodiments.For example, heat absorption air hose and backheat air hose
Quantity can be multiple, in circumferentially-spaced distribution of ring cold machine, etc..Since mode in the cards is more, here just no longer
Illustrate one by one.
Under normal circumstances, the high-temperature flue-gas scope of ring cold machine high-temperature region discharge is 350 DEG C -500 DEG C, the utility model
High-temperature flue gas of this part higher than 350 DEG C -500 DEG C is collected using the cold cover 4 of the first ring set in ring cold machine high-temperature region, by returning
Heating flue is sent into the ring cold air duct of high-temperature region, then is up to 700 DEG C -800 by the temperature that annular passage is sent on trolley, with trolley
DEG C material carry out heat exchange after.This part high-temperature flue gas is communicated to may remain in about 150 DEG C or so using rear flue-gas temperature
Scope, in this way, itself having the high-temperature flue gas and the temperature for the high-temperature flue gas discharged after high-temperature material heat exchange of certain temperature, phase
Directly to be higher by much using the temperature that heat smoke is discharged after cold front heavy rain material for former ring cold machine high-temperature region.It is sharp again in flue gas
Used time, when flue gas reaches certain temperature (such as 350 DEG C), flue-gas temperature often improves, and the extracted amount of smoke heat energy will increase
Add many.Therefore, after circulation, the efficiency of flue gas recycling can be effectively improved in the high-temperature flue gas that ring cold machine high-temperature region is collected.
The utility model same method collects the medium temperature flue gas of ring cold machine middle warm area discharge by the cold cover 8 of the second ring, will
The part medium temperature flue gas is utilized as low temperature exhaust heat ORC power generations, and the heat smoke after heat exchange is entering the heat smoke of sintering machine
The circulatory system, is sent on sintering machine (not shown) charge level.
The utility model also at the same time collect ring cold machine low-temperature space discharge flue gas, by the partial fume be sent into above two it is cold
But wind turbine, then annular main air duct is blasted, tandem utilization is carried out, exhaust gas is reduced and externally discharges, protect environment.
Ring cold machine provided by the utility model is described in detail above.Specific case used herein is to this
The principle and embodiment of utility model are set forth, and the explanation of above example is only intended to help to understand the utility model
Core concept.It should be pointed out that for those skilled in the art, the utility model principle is not being departed from
Under the premise of, some improvement and modification can also be carried out to the utility model, these are improved and modification also falls into the utility model power
In the protection domain that profit requires.
Claims (12)
1. a kind of flue gas tandem recycles ring cold machine, it is characterised in that including：
It is arranged on and is used for the cold cover of the first ring for collecting flue gas on ring cold machine high-temperature region, connects the cold cover of first ring and high-temperature flue gas
First heat absorption air hose of heat reclaim unit, connects the high-temperature flue gas heat reclaim unit and ring cold machine high-temperature region cooling air channel
And/or the first backheat air hose of ring cold machine high-temperature region cooling blower；
It is arranged on and is used for the cold cover of the second ring for collecting flue gas in ring cold machine middle warm area, connects the cold cover of second ring and medium temperature flue gas
Second heat absorption air hose of heat reclaim unit, connects the medium temperature fuel gas heat recycling device and the sintering device flue gas circulatory system
Send hot blast pipe；
The exhaust tube for being used for collecting and convey flue gas on ring cold machine low-temperature space is arranged on, the exhaust tube is connected to ring cold machine medium temperature
Area's cooling blower and/or ring cold machine low-temperature space cooling blower.
2. flue gas tandem according to claim 1 recycles ring cold machine, it is characterised in that further includes connection described first
3rd heat absorption air hose of the cold cover of ring and/or the cold cover of the second ring and ignition furnace of sintering machine.
3. flue gas tandem according to claim 1 recycles ring cold machine, it is characterised in that the high-temperature flue gas heat returns
Receiving apparatus is that can recycle the thermal energy of high-temperature flue gas to produce the waste heat boiler of steam.
4. flue gas tandem according to claim 1 recycles ring cold machine, it is characterised in that the medium temperature flue gas heat is returned
Receiving apparatus is the low-temperature waste heat power generation system that can recycle the thermal energy of medium temperature flue gas to generate electricity.
5. flue gas tandem according to claim 1 recycles ring cold machine, it is characterised in that the sintering device flue gas circulation
System includes being arranged on flue gas cover on sintering pallet face, the flue gas recirculation air hose connected with the flue gas cover and arranged on institute
The flue gas recirculation blower fan of flue gas recirculation air hose is stated, it is described to send hot blast pipe to be connected to the flue gas recirculation blower fan.
6. flue gas tandem according to claim 1 recycles ring cold machine, it is characterised in that further includes and is arranged on ring cold machine
By, discharging except the 4th heat absorption air hose for being used to for flue gas to be delivered to sinter machine discharge end dedusting system at dirt pits.
7. flue gas tandem according to claim 6 recycles ring cold machine, it is characterised in that the sinter machine discharge end dedusting system is set
It is equipped with bag filter.
8. flue gas tandem according to any one of claims 1 to 7 recycles ring cold machine, it is characterised in that the ring is cold
Machine is equipped with the cold cover of the first ring for being used to collect flue gas at least three in high-temperature region, and the radial end face of the cold cover of the first ring is door word
Type, circumferential length is suitable with the length of ring cold machine high-temperature region, the cold high-temperature area for covering on ring cold machine of the first ring, higher than platform
Truck position, its top end surface are equipped with the smoke outlet of connection high-temperature flue gas heat reclaim unit.
9. flue gas tandem according to any one of claims 1 to 7 recycles ring cold machine, it is characterised in that the ring is cold
Machine is equipped with middle warm area is used for the cold cover of the second ring for collecting flue gas at least two, the radial end face of the cold cover of the second ring is door word
Type, circumferential length is suitable with the length of ring cold machine middle warm area, the cold medium temperature region for covering on ring cold machine of second ring, higher than platform
Truck position, its top end surface are equipped with the smoke outlet of connection medium temperature fuel gas heat recycling device.
10. flue gas tandem according to claim 1 recycles ring cold machine, it is characterised in that the exhaust tube is circle
Empty barrel structure, the circumferential length of institute's coverage area are suitable with the length of ring cold machine low-temperature space.
11. flue gas tandem according to claim 10 recycles ring cold machine, it is characterised in that the exhaust tube and ring are cold
It is equipped with tee pipe fitting between machine middle warm area cooling blower and/or ring cold machine low-temperature space cooling blower, the first of the tee pipe fitting
Exhaust tube described in communication, the alternate path of the tee pipe fitting are normal temperature air entrance, the threeway of the tee pipe fitting
Road connects ring cold machine middle warm area cooling blower and/or ring cold machine low-temperature space cooling blower.
12. flue gas tandem according to claim 11 recycles ring cold machine, it is characterised in that the of the tee pipe fitting
One path is equipped with expand with heat and contract with cold compensator and the first electrically operated valve, and the alternate path of the tee pipe fitting is electronic equipped with second
Valve.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721351708.7U CN207351230U (en) | 2017-10-19 | 2017-10-19 | A kind of flue gas tandem recycles ring cold machine |
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| CN201721351708.7U CN207351230U (en) | 2017-10-19 | 2017-10-19 | A kind of flue gas tandem recycles ring cold machine |
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| CN207351230U true CN207351230U (en) | 2018-05-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116294642A (en) * | 2023-04-28 | 2023-06-23 | 秦皇岛新特科技有限公司 | Pollution-free externally-discharged energy-saving cooling machine |
-
2017
- 2017-10-19 CN CN201721351708.7U patent/CN207351230U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116294642A (en) * | 2023-04-28 | 2023-06-23 | 秦皇岛新特科技有限公司 | Pollution-free externally-discharged energy-saving cooling machine |
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