CN205619776U - Cold quick -witted unorganized emission exhaust gas collecting device of ring and comprehensive utilization device - Google Patents

Cold quick -witted unorganized emission exhaust gas collecting device of ring and comprehensive utilization device Download PDF

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Publication number
CN205619776U
CN205619776U CN201521131895.9U CN201521131895U CN205619776U CN 205619776 U CN205619776 U CN 205619776U CN 201521131895 U CN201521131895 U CN 201521131895U CN 205619776 U CN205619776 U CN 205619776U
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backwind tube
central cooler
temperature
low
high temperature
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周志安
李洁
李康
李继淦
杨正伟
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Zhongye Changtian International Engineering Co Ltd
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Zhongye Changtian International Engineering Co Ltd
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Abstract

The utility model provides an unorganized emission exhaust gas collecting device, the device includes: that cold quick -witted unorganized emission exhaust gas collecting device of ring and comprehensive utilization device, the cold machine in its zhonghuan (1) the cold quick -witted low temperature section unorganized emission's of ring chimney (103), first high temperature butterfly valve V1 in the nearly exit end setting of chimney (103), the trompil (103a) that chimney (103) lateral wall was opened below this first high temperature butterfly valve V1, 106 (La) of first backwind tube through this trompil (103a) installation, the other end of this first backwind tube 106 (La) is connected to 107 (Lb) of second backwind tube and 108 (Lc) of third backwind tube, the other end of this second backwind tube 107 (Lb) is connected with the blower inlet of the higher temperature of the cold machine of ring section, the other end of third backwind tube 108 (Lc) is connected with the blower inlet of another higher temperature section of the cold machine of ring. Return from the waste gas that discharges than the back end of the low temperature section of the cold machine of ring the cold machine of ring the low temperature section be used for cooling off the sintering deposit than the anterior segment, low temperature exhaust gas cyclic utilization reduces and discharges.

Description

A kind of central cooler uncontrollable discharge waste gas collection device and comprehensive utilization device
Technical field
This utility model relates to a kind of central cooler uncontrollable discharge collection device, relates to steel sintering plant technical field and exhaust gas utilization, mainly solves the waste gas of row outside central cooler inorganization and causes problem of environmental pollution, belongs to field of environment protection.
Background technology
In steel and iron industry, the cemented iron mineral aggregate in sintering machine is fed on cooler and cools down.Sinter cooler includes feed stage, cooling section and unloading part and is positioned at the bellows below cooler and described cooling section is further divided into high-temperature region, middle warm area and low-temperature space.
The EGT of steel enterprise sintering cooler is distributed as high-temperature region, and EGT is between 250 DEG C to 450 DEG C；Middle warm area, EGT is between 190 DEG C to 250 DEG C；And low-temperature space, EGT is between 120 DEG C to 190 DEG C.Sinter cooler waste gas actually hot-air, dust content is at 300-80mg/Nm3Between.
At present, the waste gas heat utilization of domestic iron and steel enterprises sinter cooler, major part only make use of the waste gas of sinter cooler high-temperature region, general employing is installed on double pressure waste heat boilers that the outside ground of sinter cooler has longer flue to carry waste gas, produces the low pressure steam of more than 300 DEG C for generating or production and application.In sinter cooler the waste gas of warm area and low-temperature space due to temperature low, utilize difficulty big, utilize cost high, major part enterprise is not added on utilization, air is drained into outside directly, in addition to causing the waste of waste gas residual heat resource, the thermal pollution and the particulate matter that also result in environment are the most up to standard, and granular material discharged standard value is 50mg/Nm3。
The vapor (steam) temperature that in prior art, the waste gas of high-temperature region can produce is the highest, and the thermal efficiency is the highest, and in, low temperature waste gas waste heat be not utilized, the discharge of waste gas is also a serious problem.
At present in steel industry, often using sintering deposit is main ironmaking, and its temperature is at about 800 DEG C after tail unloads for the sintering deposit that sintered machine burning is crossed, and temperature is higher, needs to be cooled to less than 120 DEG C, and major part sintering plant uses central cooler to cool down sintering deposit.Owing to central cooler is, by aerator, through the chassis entrance heat sinter bed of material and cold air is carried out heat exchange through airduct therewith, heat sinter is made gradually to be cooled down.The most just produce a large amount of central cooler waste gas, and it is the most single to the utilization of this central cooler waste gas, part high temperature section waste gas can be used for igniting combustion supporting by indivedual sintering plants, and remaining major part waste gas falls with regard to uncontrollable discharge substantially, this will result in thermal waste and the pollution to environment, so needing central cooler waste gas is comprehensively utilized, especially to be collected utilizing to the waste gas of row outside inorganization, it is achieved zero-emission.
Utility model content
The purpose of this utility model is that offer is to provide a kind of central cooler uncontrollable discharge waste gas collection device, to reach to recycle the gas sampling of central cooler uncontrollable discharge, reduces the pollution to environment, it is achieved zero-emission.
In this application, " waste gas " and " flue gas " have identical implication.
nullAccording to first embodiment of the present utility model，The uncontrollable discharge waste gas collection device of central cooler (1) is provided，Wherein according to EGT in the exhaust hood of central cooler (1) central cooler (1) is divided into high temperature section (A) and low-temperature zone (B) and this low-temperature zone (B) is divided into relatively leading portion (b1) and relatively back segment (b2)，This device includes: be positioned at central cooler low-temperature zone uncontrollable discharge chimney (103) of relatively back segment (b2)，At the first high temperature butterfly valve (V1) that the nearly port of export of chimney (103) is arranged，In the perforate (103a) that this first high temperature butterfly valve (V1) lower section chimney (103) sidewall is opened，The first backwind tube (106) (or La) installed by this perforate (103a)，The other end of this first backwind tube (106) (or La) is respectively connecting to the second backwind tube (107) (or Lb) and the 3rd backwind tube (108) (or Lc) by a tee T，The other end of this second backwind tube (107) (or Lb) is connected with the blower inlet of the relatively leading portion (b1) (or referred to as higher temperatures section b1) of central cooler (1)，And it is provided with the second high temperature butterfly valve (V2) and third high temperature butterfly valve (V3)；The other end of the 3rd backwind tube (108) (or Lc) is connected with another blower inlet of the relatively leading portion (b1) of central cooler, and is provided with the 4th high temperature butterfly valve (V4) and the 5th high temperature butterfly valve (V5).
Central cooler (1) has the circumference along central cooler and makees multiple chassis of gyration, or central cooler has or includes the chassis of multiple connection adjacent one another are.It addition, central cooler (1) has or includes that central cooler is by shots (101), unloading place of circular cooler shots dust removal port (102), chimney (103) (it is positioned in b2 section), chassis driving means (104) and multiple aerator (105) of central cooler low-temperature zone uncontrollable discharge.
In general, the first backwind tube (106) (La), the second backwind tube (107) (Lb), the 3rd backwind tube (108) (Lc) the outer waste air air quantity flow rate of diameter and central cooler inorganization relevant.
It addition, for being initiateed girth until unloading place of circular cooler shots dust removal port (102) till from central cooler by shots (101) along chassis gyratory directions, successively include or be divided into high temperature section (A) and low-temperature zone (B).
Additionally, high temperature section (A) and low-temperature zone (B) can divide according to the temperature of fan housing (or referred to as flue gas cover or exhaust hood) interior waste gas.Such as, in the exhaust hood of high temperature section (A), the interval of EGT is that the interval of EGT is to terminal temperature T3 being between 150 DEG C-180 DEG C from T2 in initial temperature T1 being between 300 DEG C-400 DEG C to terminal temperature T2 being between 250 DEG C-300 DEG C, the exhaust hood of low-temperature zone (B).
That is, the temperature range of high temperature section is to T2 from T1 (temperature of such as feeding point), and the temperature range of low-temperature zone is from greater than or equal to T2 to T3.
Typically, according to EGT in the exhaust hood of central cooler (1) central cooler (1) is divided into high temperature section (A) and low-temperature zone (B) and this low-temperature zone (B) is divided into relatively leading portion (b1) (i.e. relatively-high temperature section or higher temperatures section) and relatively back segment (b2) (i.e. relative low temperature section).
Below the first high temperature butterfly valve V1, chimney jambs opens the perforate (103a) of an a diameter of 3-5m (such as 4m).The diameter of the first backwind tube 106 (La) is identical with the diameter of described perforate (103a).The diameter of the second backwind tube 107 (Lb) and the 3rd backwind tube 108 (Lc) is the 60-85% of diameter, the preferred 70-80% of the first backwind tube 106 (La), as 75%, i.e. and 3m.
Wherein it is respectively equipped with the measuring instrument of the temperature of waste gas (or flue gas), flow, pressure at the chimney (103) of central cooler low-temperature zone with the aerator waste gas air inlet of the first backwind tube (106) (La) junction and central cooler relatively leading portion (b1).These measuring instruments are respectively connecting in computer show record.
nullAccording to second embodiment of the present utility model，It is additionally provided in and includes central cooler waste gas comprehensive utilization device in the system of sintering machine and central cooler (1)，Wherein according to EGT in the exhaust hood of central cooler (1) central cooler (1) is divided into high temperature section (A) and low-temperature zone (B) and this low-temperature zone (B) is divided into relatively leading portion (b1) (i.e. relatively-high temperature section or higher temperatures section) and relatively back segment (b2) (i.e. relative low temperature section)，This device includes: central cooler (1)，Central cooler fan housing (2)，High-temperature residual heat TRT (3)，The hot wind ignition device (i.e. igniting combustion supporting and hot blast attemperator) (4) of sintering machine，(carrying out hot gas sintering) sintering pallet (5)，Low temperature exhaust heat ORC (Organic Rankine Cycle，Organic rankie cycle) generating equipment (6) (or referred to as low-temperature waste heat power generation equipment (6))，Uncontrollable discharge waste gas collection device (7) (or referred to as low temperature waste gas tandem utilizes device (7)) with central cooler (1)，And it is distributed in the high temperature section (A) of central cooler and multiple aerators (105) of low-temperature zone (B).
Typically, for being initiateed girth until unloading place of circular cooler shots dust removal port (102) till from central cooler by shots (101) along chassis gyratory directions, the temperature (i.e. flue gas in flue gas cover (or referred to as exhaust hood) or EGT) of the waste gas (or flue gas) according to discharge divides, and successively includes or be divided into high temperature section (A) and low-temperature zone (B).Central cooler (1) includes the chassis of multiple priority connection adjacent one another are.In operation, these chassis turn round along revolution circumference (or revolution girth).The revolution girth of the chassis of central cooler is generally 100-350 rice, preferably 150-320 rice, and more preferably 200-290 rice, such as 250 meters.
In addition, the fan housing (2) of the high temperature section (A) of central cooler (1) is communicated to the hot wind ignition device of sintering machine (i.e. igniting combustion supporting and hot blast attemperator) (4) via pipeline (L2) and is communicated to the air inlet of direct connection bonnet formula waste heat boiler of (having direct connection bonnet formula waste heat boiler) high-temperature residual heat TRT (3) via pipeline (L1), and the air outlet of direct connection bonnet formula waste heat boiler is communicated to the aerator (105) of high temperature section A of central cooler via pipeline (L3).
Additionally, the fan housing (2) of the relatively leading portion (b1) of the low-temperature zone (B) of central cooler (1) is communicated to the steam boiler air inlet of (having heat-exchange apparatus) low temperature exhaust heat ORC power generation plant (6) via pipeline (L5), and the heat-exchange apparatus air outlet of low temperature exhaust heat ORC power generation plant (6) is communicated to the fan housing of sintering pallet (5) via pipeline (L6) or is communicated to aerator (105) air inlet of relatively leading portion (b1) of low-temperature zone (B) of central cooler (1) via pipeline (L7).
Further, the fan housing (2) of the relatively leading portion (b1) of the low-temperature zone (B) of central cooler (1) is communicated to the fan housing of sintering pallet (5) via pipeline (L4).
The fan housing (2) of the relatively back segment (b2) of the low-temperature zone (B) of central cooler (1) is communicated to the uncontrollable discharge waste gas collection device (7) of central cooler (1) via pipeline (L8), and the latter is communicated to aerator (105) air inlet of the relatively leading portion (b1) of the low-temperature zone (B) of central cooler (1) via pipeline (L9) [the i.e. first backwind tube 106 (La)].
Typically, in above-mentioned waste gas comprehensive utilization device, in the exhaust hood of high temperature section (A), the interval of EGT is that the interval of EGT is to terminal temperature T3 being between 150 DEG C-180 DEG C from T2 in initial temperature T1 being between 300 DEG C-400 DEG C to terminal temperature T2 being between 250 DEG C-300 DEG C, the exhaust hood of low-temperature zone (B).
nullIn above-mentioned waste gas comprehensive utilization device，The uncontrollable discharge waste gas collection device (7) of central cooler (1) including: is positioned at central cooler low-temperature zone uncontrollable discharge chimney (103) of relatively back segment (b2)，At the first high temperature butterfly valve (V1) that the nearly port of export of chimney (103) is arranged，In the perforate (103a) that this first high temperature butterfly valve (V1) lower section chimney (103) sidewall is opened，The first backwind tube (106) (or La) installed by this perforate (103a)，The other end of this first backwind tube (106) (or La) is respectively connecting to the second backwind tube (107) (or Lb) and the 3rd backwind tube (108) (or Lc) by a tee T，The other end of this second backwind tube (107) (or Lb) is connected with the blower inlet of the relatively leading portion (b1) (or referred to as higher temperatures section b1) of central cooler (1)，And it is provided with the second high temperature butterfly valve (V2) and third high temperature butterfly valve (V3)；The other end of the 3rd backwind tube (108) (or Lc) is connected with another blower inlet of the relatively leading portion (b1) of central cooler, and is provided with the 4th high temperature butterfly valve (V4) and the 5th high temperature butterfly valve (V5).
In above-mentioned waste gas comprehensive utilization device, central cooler (1) has or includes that central cooler is by shots (101), unloading place of circular cooler shots dust removal port (102), the chimney (103) of central cooler low-temperature zone uncontrollable discharge, chassis driving means (104) and multiple aerator (105).
According to the 3rd embodiment of the present utility model, the operational approach of above-mentioned central cooler waste gas comprehensive utilization device is provided, the i.e. method of central cooler waste gas comprehensive utilization in the system including sintering machine and central cooler (1), wherein according to EGT in the exhaust hood of central cooler (1), central cooler divides (1) be high temperature section (A) and low-temperature zone (B) and this low-temperature zone (B) is divided into relatively leading portion (b1) (i.e. relatively-high temperature section or higher temperatures section) and relatively back segment (b2) (i.e. relative low temperature section), the method to include:
1) the hot wind ignition device (i.e. igniting combustion supporting and hot blast attemperator) (4) that a part of high-temp waste gas G1 exported from the high temperature section (A) of central cooler (1) is delivered to sintering machine via pipeline (L2) is used for the hot wind ignition of sintering machine；
2) to reclaim heat energy in the direct connection bonnet formula waste heat boiler of this device and producing steam and be used for generating electricity by the steam of generation another part high-temp waste gas G1 exported from the high temperature section (A) of central cooler (1) is delivered to (having direct connection bonnet formula waste heat boiler) high-temperature residual heat TRT (3) via pipeline (L1), the low temperature waste gas from waste heat boiler discharge having been used to boiler heating generation steam is connect away via pipeline (L3) aerator (105) of the high temperature section (A) being back to central cooler (1) simultaneously again, the sintering deposit on central cooler (1) is cooled down；
3) a part of low temperature waste gas G2 exported from the low-temperature zone (B) of central cooler (1) is delivered to low temperature exhaust heat ORC power generation plant (6) reclaim heat energy via pipeline (L5), by heat exchange for low-temperature electricity-generating, to utilize the waste heat of low-temperature zone, and the waste gas after low-temperature cogeneration has utilized is transported to sintering pallet (5) via pipeline (L6) to be further used for hot gas sintering or being cooled down sintering deposit by the aerator (105) being delivered back into low-temperature zone B of central cooler (1) via pipeline (L8)；With
4) another part low temperature waste gas G2 exported from the low-temperature zone (B) of central cooler (1) is transported to sintering pallet (5) to be further used for hot gas sintering via pipeline (L4).
In general, in the exhaust hood of high temperature section (A), the interval of EGT is that the interval of EGT is to terminal temperature T3 being between 150 DEG C-180 DEG C from T2 in initial temperature T1 being between 300 DEG C-400 DEG C to terminal temperature T2 being between 250 DEG C-300 DEG C, the exhaust hood of low-temperature zone (B).
Preferably, said method also includes: 5) the more low temperature waste gas exported from the relatively back segment (b2) of the low-temperature zone (B) of central cooler (1) is collected by the uncontrollable discharge waste gas collection device (7) of central cooler (1) via pipeline (L9), and relatively leading portion (b1) (the i.e. relatively-high temperature section) aerator returning the low-temperature zone (B) of central cooler (1) via pipeline (L10) is used for cooling down the sintering deposit on central cooler (1).
nullPreferably，In the above-mentioned methods，The uncontrollable discharge waste gas collection device (7) of central cooler (1) including: is positioned at the chimney (103) of the central cooler low-temperature zone uncontrollable discharge of relatively back segment (b2)，At the first high temperature butterfly valve (V1) that the nearly port of export of chimney (103) is arranged，In the perforate (103a) that this first high temperature butterfly valve (V1) lower section chimney (103) sidewall is opened，The first backwind tube (106) (La) installed by this perforate (103a)，The other end of this first backwind tube (106) (La) is respectively connecting to the second backwind tube (107) (Lb) and the 3rd backwind tube (108) (Lc) by a tee T，The other end of this second backwind tube (107) (Lb) is connected with the blower inlet of the relatively leading portion (b1) (or referred to as higher temperatures section b1) of central cooler，And it is provided with the second high temperature butterfly valve (V2) and third high temperature butterfly valve (V3)；The other end of the 3rd backwind tube (108) (Lc) is connected with another blower inlet of the relatively leading portion (b1) of central cooler, and is provided with the 4th high temperature butterfly valve (V4) and the 5th high temperature butterfly valve (V5).
Typically, central cooler (1) has or includes that central cooler is by shots (101), unloading place of circular cooler shots dust removal port (102), the chimney (103) of central cooler low-temperature zone uncontrollable discharge, chassis driving means (104) and multiple aerator (105).
That is, this utility model provides the operational approach of above-mentioned central cooler waste gas comprehensive utilization device, a kind of method of central cooler waste gas comprehensive utilization, central cooler is, by aerator, through the chassis entrance heat sinter bed of material and cold air is carried out heat exchange through airduct therewith, heat sinter is made gradually to be cooled down, according to the central cooler cooling process to sintering deposit, central cooler waste gas is divided into two large divisions by temperature by us: high temperature section and low-temperature zone, the waste gas of high temperature section can be used for igniting combustion supporting and cogeneration, the waste gas of low temperature section can be used for low-temperature cogeneration, hot gas sintering, low temperature waste gas tandem utilizes.The central cooler waste gas that hot wind ignition utilizes is used for consumption of lighting a fire, waste gas after cogeneration, low-temperature electricity-generating and low temperature waste gas tandem utilize returns central cooler re-using, the waste gas that hot gas sintering utilizes enters sintering pallet, and whole waste gas circulation uses and realizes zero-emission.As shown in Figure 3.
The concrete operational approach of central cooler waste gas comprehensive utilization device is as follows:
Hot wind ignition: the high-temp waste gas produced in the cooling of central cooler high temperature section, its temperature about 300 DEG C, by siphunculus, this portion connect away and hot blast combustion-supporting for ignition of sintering process and be incubated.
High-temperature residual heat generates electricity: the high-temp waste gas produced in the cooling of central cooler high temperature section, by siphunculus, this portion is connect away, use direct connection bonnet formula waste heat boiler technology to reclaim heat energy and produce steam, it is used for generating electricity by the steam of generation, low temperature waste gas after heated steam is connect away return central cooler aerator with pipeline more simultaneously, sintering deposit is cooled down.
Low-temperature cogeneration: the low-temperature zone waste gas produced in the cooling of ensuing central cooler, this section of EGT is between 150-220 DEG C, by siphunculus, this portion is connect away, low temperature exhaust heat ORC generation technology is used to reclaim heat energy, by heat exchange for low-temperature electricity-generating, to utilize low-temperature zone waste heat, improving residual heat resources utilization ratio, the waste gas after low-temperature cogeneration has utilized can be used for hot gas sintering or returns again to central cooler aerator and cool down sintering deposit.
Hot gas sintering: the low temperature waste gas produced by central cooler or the waste gas after low-temperature cogeneration has utilized, or both mixing, this EGT at about 100 DEG C, returns sintering pallet, provides hot gas sintering to sintering machine.
Low temperature waste gas tandem utilizes: the more low temperature waste gas produced compared with back segment at central cooler, this portion is collected by central cooler uncontrollable discharge waste gas collection device, return central cooler relatively-high temperature section aerator sintering deposit is cooled down, thus accomplished zero-emission, decreased environmental pollution.In this tandem utilizes, need to use central cooler uncontrollable discharge waste gas collection device, as depicted in figs. 1 and 2, central cooler (1) includes that central cooler is by shots (101), unloading place of circular cooler shots dust removal port (102), the chimney (103) of central cooler low-temperature zone uncontrollable discharge, chassis driving means (104) and multiple aerator (105).This uncontrollable discharge waste gas collection device is, the nearly port of export of chimney at central cooler uncontrollable discharge arranges the first high temperature butterfly valve (V1), a perforate (103a) is opened at this first high temperature butterfly valve (V1) lower section chimney jambs, by this perforate, the first backwind tube (106) (La) is installed, the other end of the first backwind tube (106) (La) connects the second backwind tube (107) (Lb) and the 3rd backwind tube (108) (Lc) by a threeway, first backwind tube (106) (La), second backwind tube (107) (Lb), the diameter of the 3rd backwind tube (108) (Lc) waste air air quantity flow rate outer to central cooler inorganization is relevant.The other end of the second backwind tube (107) (Lb) is connected with the blower inlet of the relatively leading portion (b1) (or referred to as higher temperatures section b1) of central cooler, and is provided with the second high temperature butterfly valve (V2) and third high temperature butterfly valve (V3)；The other end of the 3rd backwind tube (108) (Lc) is connected with another blower inlet of the relatively leading portion (b1) of central cooler, and is provided with the 4th high temperature butterfly valve (V4) and the 5th high temperature butterfly valve (V5).
It addition, as an alternative, when the exhaust gas utilization of central cooler high temperature section, can first select igniting combustion supporting, then select waste heat boiler producing steam, both order adjustable, it is possible to select together；When the exhaust gas utilization of low-temperature zone, can first select low temperature exhaust heat ORC to generate electricity, then select hot gas sintering, both order adjustable, it is possible to select together, also can go again for hot gas sintering after low-temperature cogeneration；And low temperature waste gas tandem utilizes and all can use at any uncontrollable discharge of low-temperature zone.Above-mentioned various mode can be selected entirely, it is possible to selects the most several, can do selection flexibly for concrete central cooler, and the purpose that the exhaust-gas efficient environmental protection after reaching cooling sintering deposit uses reduces energy consumption, cost-effective, reduces the pollution to environment, it is achieved zero-emission.
The operational approach of device of the present utility model is exemplified below:
With 700m2As a example by central cooler, the EGT at central cooler low-temperature zone uncontrollable discharge is about 100 DEG C, and air quantity is about 1,120,000 Nm3/ h, flow velocity is about 33.86m/s, below the first high temperature butterfly valve V1, chimney jambs opens the perforate (103a) of an a diameter of 4m, the diameter of the first backwind tube 106 (La) is identical with the diameter of described perforate (103a) is also 4m, close the first high temperature butterfly valve V1, enter the first backwind tube 106 (La) air quantity and be about 1,120,000 Nm3/ h, wind velocity in pipes is about 33.86m/s, second backwind tube 107 (Lb) and a diameter of 3m of the 3rd backwind tube 108 (Lc), the most also the second high temperature butterfly valve V2, the 4th high temperature butterfly valve V4 are opened, third high temperature butterfly valve V3, the 5th high temperature butterfly valve V5 being closed, now the second backwind tube 107 (Lb) and the 3rd backwind tube 108 (Lc) air quantity are probably respectively 560,000 Nm3/ h, wind velocity in pipes is about 30.1m/s, and EGT is about 100 DEG C, and then waste gas enters the second backwind tube 107 (Lb) and the 3rd each self-corresponding blower inlet of backwind tube 108 (Lc) carries out waste gas circulation.
When central cooler uncontrollable discharge waste gas collection device runs, if the aerator being connected with the second backwind tube 107 (Lb) breaks down, then the first high temperature butterfly valve V1, the second high temperature butterfly valve V2, third high temperature butterfly valve V3, the 5th high temperature butterfly valve V5 close, 4th high temperature butterfly valve V4 opens, waste gas enters the first backwind tube 106 (La), the 3rd backwind tube 108 (Lc) is entered, so waste gas enters the blower inlet corresponding with the 3rd backwind tube 108 (Lc) by the 4th high temperature butterfly valve V4 opened again carries out waste gas circulation through threeway.
When central cooler uncontrollable discharge waste gas collection device runs, if the aerator being connected with the 3rd backwind tube 108 (Lc) breaks down, then the first high temperature butterfly valve V1, the 4th high temperature butterfly valve V4, third high temperature butterfly valve V3, the 5th high temperature butterfly valve V5 close, second high temperature butterfly valve V2 opens, waste gas enters the first backwind tube 106 (La), the second backwind tube 107 (Lb) is entered, so waste gas enters the blower inlet corresponding with the second backwind tube 107 (Lb) by the second high temperature butterfly valve V2 opened again carries out waste gas circulation through threeway.
When central cooler uncontrollable discharge waste gas collection device fault, first high temperature butterfly valve V1, third high temperature butterfly valve V3, the 5th high temperature butterfly valve V5 open, second high temperature butterfly valve V2, the 4th high temperature butterfly valve V4 close, waste gas is by chimney directly outer row, uncontrollable discharge waste gas collection device, by the third high temperature butterfly valve V3 opened, the 5th high temperature butterfly valve V5 convulsion from air, is then safeguarded by aerator accordingly.
During whole gas sampling recycles, also will be by the chimney (103) of central cooler low-temperature zone and the first backwind tube (106) (La) junction, the temperature of the aerator waste gas air inlet waste gas of central cooler relatively leading portion (b1) (higher temperatures section), flow, pressure detects in real time, then Computer display record is delivered to by signal, if relatively leading portion (b1) (higher temperatures section) the aerator waste gas air inlet exhaust gas flow pressure gap at central cooler two is more than 20%, second high temperature butterfly valve (V2) of the corresponding return air arm flow of regulation, the aperture of the 4th high temperature butterfly valve (V4), make each return air arm flow in a basic balance.
Advantage of the present utility model or Advantageous Effects
1, the flue gas discharged from the relatively back segment (b2) of the low-temperature zone of central cooler or waste gas (i.e. last low temperature waste gas) again return to the relatively leading portion (b1) (i.e. the higher temperatures section of low-temperature zone) of the low-temperature zone of central cooler and are used for cooling down sintering deposit, allow low temperature waste gas recycle, reduce discharge.
2, the uncontrollable discharge waste gas collection device of central cooler (1) is applied in the waste gas method of comprehensive utilization of central cooler, by modes such as igniting combustion supporting, waste heat boiler producing steam, low temperature exhaust heat ORC generating, low temperature waste gas tandem utilizations, the especially design of the waste gas collection device that tandem uses when utilizing, the purpose that exhaust-gas efficient environmental protection after reaching cooling sintering deposit uses, reduce energy consumption, cost-effective, reduce the pollution to environment, it is achieved zero-emission.
Various Land use systems are not fixed, and can entirely select, it is possible to selecting the most several, its sequencing is not fixed, and can do for concrete central cooler and select flexibly and arrange.
3, compared with prior art, in this utility model, central cooler exhaust gas utilization rate is high, recycles effective, reduces energy consumption, cost-effective, reduces the pollution to environment, it is achieved zero-emission.
Accompanying drawing explanation
Fig. 1 is the floor map of waste gas collection device in this utility model.
Fig. 2 is the II-II sectional drawing of waste gas collection device in Fig. 2.
Fig. 3 is the flow chart of the operational approach of central cooler waste gas comprehensive utilization device in the system including sintering machine and central cooler (1).
Reference:
1, central cooler；101, central cooler is by shots；102, unloading place of circular cooler shots dust removal port；103, chimney；103a, chimney jambs hole or perforate；104, chassis driving means；105, aerator；106, the first backwind tube (La)；107, the second backwind tube (Lb)；108, the 3rd backwind tube (Lc)；V1, the first high temperature butterfly valve；V2, the second high temperature butterfly valve；V3, third high temperature butterfly valve；V4, the 4th high temperature butterfly valve；V5, the 5th high temperature butterfly valve.
2, central cooler fan housing；3, high-temperature residual heat TRT；4, the hot wind ignition device (i.e. igniting combustion supporting and hot blast attemperator) of sintering machine；5, the sintering pallet that (carries out hot gas sintering)；6, low temperature exhaust heat ORC power generation plant (or referred to as low-temperature waste heat power generation equipment)；7, the uncontrollable discharge waste gas collection device (or referred to as low temperature waste gas tandem utilizes device) of central cooler (1)；8, sintering deposit cooling trend.
A, high temperature section；B, low-temperature zone；B1, the relatively leading portion (i.e. relatively-high temperature section) of low-temperature zone B；B2, the relatively back segment b2 (i.e. relative low temperature section) of low-temperature zone B.L1-L9, flue or exhaust piping.Wherein 106 is same pipeline with L9.
G1, high-temp waste gas (or low-temperature flue gas)；G2, low temperature waste gas (low-temperature flue gas)；G3, more low temperature waste gas (or flue gas).
Detailed description of the invention
Central cooler cooling waste gas can be divided into high temperature section waste gas and low-temperature zone waste gas according to the cooling procedure of sintering deposit, high temperature section waste gas can be utilized for igniting combustion supporting and the cogeneration of sintering machine, and low-temperature zone waste gas can be collected recycling by central cooler uncontrollable discharge waste gas collection device.As depicted in figs. 1 and 2, central cooler (1) includes that central cooler is by shots (101), unloading place of circular cooler shots dust removal port (102), the chimney (103) of central cooler low-temperature zone uncontrollable discharge, chassis driving means (104) and multiple aerator (105).This uncontrollable discharge waste gas collection device is, the nearly port of export of chimney at central cooler uncontrollable discharge arranges the first high temperature butterfly valve V1, below this first high temperature butterfly valve V1, chimney jambs opens a perforate (103a), by this hole, the first backwind tube 106 (La) is installed, the other end of the first backwind tube 106 (La) connects the second backwind tube 107 (Lb) and the 3rd backwind tube 108 (Lc) by a threeway, first backwind tube 106 (La), second backwind tube 107 (Lb), the diameter of the 3rd backwind tube 108 (Lc) waste air air quantity flow rate outer to central cooler inorganization is relevant.The other end of the second backwind tube 107 (Lb) is connected with the blower inlet of the relatively leading portion (b1) of central cooler, and is provided with the second high temperature butterfly valve V2 and third high temperature butterfly valve V3；The other end of the 3rd backwind tube 108 (Lc) is connected with another blower inlet of the relatively leading portion (b1) of central cooler, and is provided with the 4th high temperature butterfly valve V4 and the 5th high temperature butterfly valve V5.
Embodiment 1
700m2Central cooler, the EGT at central cooler low-temperature zone uncontrollable discharge is about 100 DEG C, and air quantity is about 1,120,000 Nm3/ h, flow velocity is about 33.86m/s.
Below the first high temperature butterfly valve V1, chimney jambs opens the perforate (103a) of an a diameter of 4m, the diameter of the first backwind tube 106 (La) is identical with the diameter of described perforate (103a) is also 4m, close the first high temperature butterfly valve V1, enter the first backwind tube 106 (La) air quantity and be about 1,120,000 Nm3/ h, wind velocity in pipes is about 33.86m/s, second backwind tube 107 (Lb) and a diameter of 3m of the 3rd backwind tube 108 (Lc), the most also the second high temperature butterfly valve V2, the 4th high temperature butterfly valve V4 are opened, third high temperature butterfly valve V3, the 5th high temperature butterfly valve V5 being closed, now the second backwind tube 107 (Lb) and the 3rd backwind tube 108 (Lc) air quantity are probably respectively 560,000 Nm3/ h, wind velocity in pipes is about 30.1m/s, and EGT is about 100 DEG C, and then waste gas enters the second backwind tube 107 (Lb) and the 3rd each self-corresponding blower inlet of backwind tube 108 (Lc) carries out waste gas circulation.
When central cooler uncontrollable discharge waste gas collection device runs, if the aerator being connected with the second backwind tube 107 (Lb) breaks down, then the first high temperature butterfly valve V1, the second high temperature butterfly valve V2, third high temperature butterfly valve V3, the 5th high temperature butterfly valve V5 close, 4th high temperature butterfly valve V4 opens, waste gas enters the first backwind tube 106 (La), the 3rd backwind tube 108 (Lc) is entered, so waste gas enters the blower inlet corresponding with the 3rd backwind tube 108 (Lc) by the 4th high temperature butterfly valve V4 opened again carries out waste gas circulation through threeway.
When central cooler uncontrollable discharge waste gas collection device runs, if the aerator being connected with the 3rd backwind tube 108 (Lc) breaks down, then the first high temperature butterfly valve V1, the 4th high temperature butterfly valve V4, third high temperature butterfly valve V3, the 5th high temperature butterfly valve V5 close, second high temperature butterfly valve V2 opens, waste gas enters the first backwind tube 106 (La), the second backwind tube 107 (Lb) is entered, so waste gas enters the blower inlet corresponding with the second backwind tube 107 (Lb) by the second high temperature butterfly valve V2 opened again carries out waste gas circulation through threeway.
When central cooler uncontrollable discharge waste gas collection device fault, first high temperature butterfly valve V1, third high temperature butterfly valve V3, the 5th high temperature butterfly valve V5 open, second high temperature butterfly valve V2, the 4th high temperature butterfly valve V4 close, waste gas is by chimney directly outer row, uncontrollable discharge waste gas collection device, by the third high temperature butterfly valve V3 opened, the 5th high temperature butterfly valve V5 convulsion from air, is then safeguarded by aerator accordingly.
During whole gas sampling recycles, also the chimney of central cooler low-temperature zone and the first backwind tube 106 (La) junction, the temperature of aerator waste gas air inlet waste gas of central cooler relatively leading portion (higher temperatures section), flow, pressure are detected in real time, then Computer display record is delivered to by signal, if the relatively leading portion aerator waste gas air inlet exhaust gas flow pressure gap at central cooler two is more than 20%, regulation corresponding second high temperature butterfly valve V2 of arm flow, the aperture of the 4th high temperature butterfly valve V4, make each arm flow in a basic balance.
This utility model, the nearly port of export of chimney at central cooler uncontrollable discharge arranges the first high temperature butterfly valve V1, below this first high temperature butterfly valve V1, chimney jambs opens a perforate (103a), by this hole, the first backwind tube 106 (La) is installed, the other end of the first backwind tube 106 (La) connects the second backwind tube 107 (Lb) and the 3rd backwind tube 108 (Lc) by a threeway, the first backwind tube 106 (La), the second backwind tube 107 (Lb), the 3rd backwind tube 108 (Lc) diameter waste air air quantity flow rate outer to central cooler inorganization relevant.The other end of the second backwind tube 107 (Lb) is connected with the blower inlet of the relatively leading portion (b1) of central cooler, and is provided with the second high temperature butterfly valve V2 and the second high temperature butterfly valve V3；The other end of the 3rd backwind tube 108 (Lc) is connected with another blower inlet of the relatively leading portion (b1) of central cooler, and is provided with the 4th high temperature butterfly valve V4 and the 5th high temperature butterfly valve V5.
Embodiment 2
With 700m2As a example by central cooler, at the high-temp waste gas that the cooling of central cooler high temperature section produces, its temperature about 300 DEG C, this portion amount is about 12.84 ten thousand Nm3/ h, connects away this portion and hot blast combustion-supporting for ignition of sintering process by siphunculus and is incubated；The high-temp waste gas produced in the cooling of central cooler high temperature section also has about 1,080,000 Nm3/ h, this portion is connect away by this portion by siphunculus, generates electricity for high-temperature residual heat, and cogeneration uses direct connection bonnet formula waste heat boiler technology to reclaim heat energy generation steam, 1,080,000 Nm3The exhausted air quantity of/h can make this waste heat boiler generation quantity of steam be about 1.8MPa, superheated steam 65t/h and 0.5MPa of 280 DEG C, the superheated steam 15t/h of 180 DEG C, it is used for generating electricity by the steam of generation, low temperature waste gas after heated steam is connect away return central cooler aerator with pipeline more simultaneously, sintering deposit is cooled down；At the low-temperature zone waste gas that the cooling of ensuing central cooler produces, this section of EGT is between 150-220 DEG C, and this portion amount is about 1,200,000 Nm3/ h, by siphunculus, this portion is connect away, for low-temperature cogeneration, low temperature exhaust heat ORC generation technology is used to reclaim heat energy, by heat exchange for low-temperature electricity-generating, to utilize low-temperature zone waste heat, improving residual heat resources utilization ratio, the waste gas after low-temperature cogeneration has utilized can be used for hot gas sintering or returns again to central cooler aerator and cool down sintering deposit；The low temperature waste gas produced by central cooler or the waste gas after low-temperature cogeneration has utilized, or both mixing, EGT at about 100 DEG C, returns sintering pallet, provides hot gas sintering to sintering machine；At the more low temperature waste gas that central cooler produces compared with back segment, this portion air quantity is about 1,120,000 Nm3/h, EGT is about 100 DEG C, flow velocity is about 33.86m/s, below the first high temperature butterfly valve V1, chimney jambs opens the perforate (103a) of an a diameter of 4m, the diameter of the first backwind tube 106 (La) is identical with the diameter of described perforate (103a) is also 4m, close the first high temperature butterfly valve V1, enter the first backwind tube 106 (La) air quantity and be about 1,120,000 Nm3/ h, wind velocity in pipes is about 33.86m/s, second backwind tube 107 (Lb) and a diameter of 3m of the 3rd backwind tube 108 (Lc), the most also the second high temperature butterfly valve V2, the 4th high temperature butterfly valve V4 are opened, third high temperature butterfly valve V3, the 5th high temperature butterfly valve V5 being closed, now the second backwind tube 107 (Lb) and the 3rd backwind tube 108 (Lc) air quantity are probably respectively 560,000 Nm3/ h, wind velocity in pipes is about 30.1m/s, and EGT is about 100 DEG C, and then waste gas enters the second backwind tube 107 (Lb) and the 3rd each self-corresponding blower inlet of backwind tube 108 (Lc) carries out waste gas circulation.Thus accomplish zero-emission, decrease environmental pollution.
When central cooler uncontrollable discharge waste gas collection device runs, if the aerator being connected with the second backwind tube 107 (Lb) breaks down, then the first high temperature butterfly valve V1, the second high temperature butterfly valve V2, third high temperature butterfly valve V3, the 5th high temperature butterfly valve V5 close, 4th high temperature butterfly valve V4 opens, waste gas enters the first backwind tube 106 (La), the 3rd backwind tube 108 (Lc) is entered, so waste gas enters the blower inlet corresponding with the 3rd backwind tube 108 (Lc) by the 4th high temperature butterfly valve V4 opened again carries out waste gas circulation through threeway.
When central cooler uncontrollable discharge waste gas collection device runs, if the aerator being connected with the 3rd backwind tube 108 (Lc) breaks down, then the first high temperature butterfly valve V1, the 4th high temperature butterfly valve V4, third high temperature butterfly valve V3, the 5th high temperature butterfly valve V5 close, second high temperature butterfly valve V2 opens, waste gas enters the first backwind tube 106 (La), the second backwind tube 107 (Lb) is entered, so waste gas enters the blower inlet corresponding with the second backwind tube 107 (Lb) by the second high temperature butterfly valve V2 opened again carries out waste gas circulation through threeway.
When central cooler uncontrollable discharge waste gas collection device fault, first high temperature butterfly valve V1, third high temperature butterfly valve V3, the 5th high temperature butterfly valve V5 open, second high temperature butterfly valve V2, the 4th high temperature butterfly valve V4 close, waste gas is by chimney directly outer row, uncontrollable discharge waste gas collection device, by the third high temperature butterfly valve V3 opened, the 5th high temperature butterfly valve V5 convulsion from air, is then safeguarded by aerator accordingly.
During whole gas sampling recycles, also the chimney of central cooler low-temperature zone and the first backwind tube 106 (La) junction, the temperature of aerator waste gas air inlet waste gas of central cooler relatively leading portion (higher temperatures section), flow, pressure are detected in real time, then Computer display record is delivered to by signal, if the relatively leading portion aerator waste gas air inlet exhaust gas flow pressure gap at central cooler two is more than 20%, regulation corresponding second high temperature butterfly valve V2 of arm flow, the aperture of the 4th high temperature butterfly valve V4, make each arm flow in a basic balance.

Claims (17)

  1. null1. the uncontrollable discharge waste gas collection device (7) of central cooler (1)，Wherein according to EGT in the exhaust hood of central cooler (1) central cooler (1) is divided into high temperature section (A) and low-temperature zone (B) and this low-temperature zone (B) is divided into relatively leading portion (b1) and relatively back segment (b2)，This device includes: be positioned at central cooler low-temperature zone uncontrollable discharge chimney (103) of relatively back segment (b2)，At the first high temperature butterfly valve (V1) that the nearly port of export of chimney (103) is arranged，A perforate (103a) is had at this first high temperature butterfly valve (V1) lower section chimney (103) sidewall，The first backwind tube (106) installed by this perforate (103a)，The other end of this first backwind tube (106) is respectively connecting to the second backwind tube (107) and the 3rd backwind tube (108) by a tee T，The other end of this second backwind tube (107) is connected with the blower inlet of central cooler relatively leading portion (b1)，And it is provided with the second high temperature butterfly valve (V2) and third high temperature butterfly valve (V3)；The other end of the 3rd backwind tube (108) is connected with another blower inlet of the relatively leading portion (b1) of central cooler, and is provided with the 4th high temperature butterfly valve (V4) and the 5th high temperature butterfly valve (V5).
  2. Device the most according to claim 1, wherein central cooler (1) has or includes that central cooler is by shots (101), unloading place of circular cooler shots dust removal port (102), the chimney (103) of central cooler low-temperature zone uncontrollable discharge, chassis driving means (104) and multiple aerator (105).
  3. Device the most according to claim 1 and 2, wherein the first backwind tube (106), the second backwind tube (107), the 3rd backwind tube (108) the outer waste air air quantity flow rate of diameter and central cooler inorganization relevant.
  4. Device the most according to claim 1 and 2, wherein for being initiateed girth until unloading place of circular cooler shots dust removal port (102) till from central cooler by shots (101) along chassis gyratory directions, successively include or be divided into high temperature section and low-temperature zone.
  5. Device the most according to claim 3, wherein for being initiateed girth until unloading place of circular cooler shots dust removal port (102) till from central cooler by shots (101) along chassis gyratory directions, successively includes or is divided into high temperature section and low-temperature zone.
  6. 6. according to the device in any of the one of claim 1,2 or 5, wherein in the exhaust hood of high temperature section (A), the interval of EGT is that the interval of EGT is to terminal temperature T3 being between 150 DEG C-180 DEG C from T2 in initial temperature T1 being between 300 DEG C-400 DEG C to terminal temperature T2 being between 250 DEG C-300 DEG C, the exhaust hood of low-temperature zone (B).
  7. Device the most according to claim 3, wherein in the exhaust hood of high temperature section (A), the interval of EGT is that the interval of EGT is to terminal temperature T3 being between 150 DEG C-180 DEG C from T2 in initial temperature T1 being between 300 DEG C-400 DEG C to terminal temperature T2 being between 250 DEG C-300 DEG C, the exhaust hood of low-temperature zone (B).
  8. Device the most according to claim 4, wherein in the exhaust hood of high temperature section (A), the interval of EGT is that the interval of EGT is to terminal temperature T3 being between 150 DEG C-180 DEG C from T2 in initial temperature T1 being between 300 DEG C-400 DEG C to terminal temperature T2 being between 250 DEG C-300 DEG C, the exhaust hood of low-temperature zone (B).
  9. 9. according to the device in any of the one of claim 1,2,5,7 or 8, the perforate (103a) of an a diameter of 3-5m is wherein opened at the first high temperature butterfly valve (V1) lower section chimney jambs, identical with the diameter of described perforate (103a) with the diameter of the first backwind tube (106), the diameter of the second backwind tube (107) and the 3rd backwind tube (108) is the 60-85% of the diameter of the first backwind tube (106)；And/or
    Wherein the diameter of the second backwind tube (107) and the 3rd backwind tube (108) is the 70-80% of diameter of the first backwind tube (106)；And/or
    Wherein it is respectively equipped with the measuring instrument of the temperature of waste gas, flow, pressure at the chimney (103) of central cooler low-temperature zone with the aerator waste gas air inlet of the first backwind tube (106) (La) junction and central cooler relatively leading portion (b1).
  10. Device the most according to claim 3, the perforate (103a) of an a diameter of 3-5m is wherein opened at the first high temperature butterfly valve (V1) lower section chimney jambs, identical with the diameter of described perforate (103a) with the diameter of the first backwind tube (106), the diameter of the second backwind tube (107) and the 3rd backwind tube (108) is the 60-85% of the diameter of the first backwind tube (106)；And/or
    Wherein the diameter of the second backwind tube (107) and the 3rd backwind tube (108) is the 70-80% of diameter of the first backwind tube (106)；And/or
    Wherein it is respectively equipped with the measuring instrument of the temperature of waste gas, flow, pressure at the chimney (103) of central cooler low-temperature zone with the aerator waste gas air inlet of the first backwind tube (106) (La) junction and central cooler relatively leading portion (b1).
  11. 11. devices according to claim 4, the perforate (103a) of an a diameter of 3-5m is wherein opened at the first high temperature butterfly valve (V1) lower section chimney jambs, identical with the diameter of described perforate (103a) with the diameter of the first backwind tube (106), the diameter of the second backwind tube (107) and the 3rd backwind tube (108) is the 60-85% of the diameter of the first backwind tube (106)；And/or
    Wherein the diameter of the second backwind tube (107) and the 3rd backwind tube (108) is the 70-80% of diameter of the first backwind tube (106)；And/or
    Wherein it is respectively equipped with the measuring instrument of the temperature of waste gas, flow, pressure at the chimney (103) of central cooler low-temperature zone with the aerator waste gas air inlet of the first backwind tube (106) (La) junction and central cooler relatively leading portion (b1).
  12. 12. devices according to claim 6, the perforate (103a) of an a diameter of 3-5m is wherein opened at the first high temperature butterfly valve (V1) lower section chimney jambs, identical with the diameter of described perforate (103a) with the diameter of the first backwind tube (106), the diameter of the second backwind tube (107) and the 3rd backwind tube (108) is the 60-85% of the diameter of the first backwind tube (106)；And/or
    Wherein the diameter of the second backwind tube (107) and the 3rd backwind tube (108) is the 70-80% of diameter of the first backwind tube (106)；And/or
    Wherein it is respectively equipped with the measuring instrument of the temperature of waste gas, flow, pressure at the chimney (103) of central cooler low-temperature zone with the aerator waste gas air inlet of the first backwind tube (106) (La) junction and central cooler relatively leading portion (b1).
  13. 13. 1 kinds of central cooler waste gas comprehensive utilization device, uncontrollable discharge waste gas collection device (7) including the central cooler (1) according to any one of claim 1-12, sintering machine, this utilizes device also to include: central cooler (1), central cooler fan housing (2), high-temperature residual heat TRT (3), the hot wind ignition device (4) of sintering machine, sintering pallet (5), low temperature exhaust heat ORC power generation plant (6), and it is distributed in the high temperature section (A) of central cooler and multiple aerators (105) of low-temperature zone (B), the revolution girth of the chassis of central cooler (1) is generally 100-350 rice.
  14. 14. devices according to claim 13, wherein, the fan housing (2) of the high temperature section (A) of central cooler (1) is communicated to the hot wind ignition device (4) of sintering machine via pipeline (L2) and is communicated to the air inlet of direct connection bonnet formula waste heat boiler of high-temperature residual heat TRT (3) via pipeline (L1), and the air outlet of direct connection bonnet formula waste heat boiler is communicated to the aerator (105) of high temperature section (A) of central cooler via pipeline (L3)；And/or
    The fan housing (2) of the relatively leading portion (b1) of the low-temperature zone (B) of central cooler (1) is communicated to the heat-exchange apparatus air inlet of low temperature exhaust heat ORC power generation plant (6) via pipeline (L5), and the heat-exchange apparatus air outlet of low temperature exhaust heat ORC power generation plant (6) is communicated to the fan housing of sintering pallet (5) via pipeline (L6) or is communicated to aerator (105) air inlet of relatively leading portion (b1) of low-temperature zone (B) of central cooler (1) via pipeline (L7)；And/or
    The fan housing (2) of the relatively leading portion (b1) of the low-temperature zone (B) of central cooler (1) is communicated to the fan housing of sintering pallet (5) via pipeline (L4)；And/or
    The fan housing (2) of the relatively back segment (b2) of the low-temperature zone (B) of central cooler (1) is communicated to the uncontrollable discharge waste gas collection device (7) of central cooler (1) via pipeline (L8), the latter is via pipeline (L9), i.e. first backwind tube (106), is communicated to aerator (105) air inlet of the relatively leading portion (b1) of the low-temperature zone (B) of central cooler (1).
  15. 15. according to the device described in claim 13 or 14, wherein in the exhaust hood of high temperature section (A), the interval of EGT is that the interval of EGT is to terminal temperature T3 being between 150 DEG C-180 DEG C from T2 in initial temperature T1 being between 300 DEG C-400 DEG C to terminal temperature T2 being between 250 DEG C-300 DEG C, the exhaust hood of low-temperature zone (B).
  16. 16. according to the device described in claim 13 or 14, and wherein central cooler (1) has or includes that central cooler is by shots (101), unloading place of circular cooler shots dust removal port (102), the chimney (103) of central cooler low-temperature zone uncontrollable discharge, chassis driving means (104) and multiple aerator (105).
  17. 17. devices according to claim 15, wherein central cooler (1) has or includes that central cooler is by shots (101), unloading place of circular cooler shots dust removal port (102), the chimney (103) of central cooler low-temperature zone uncontrollable discharge, chassis driving means (104) and multiple aerator (105).
CN201521131895.9U 2015-12-30 2015-12-30 Cold quick -witted unorganized emission exhaust gas collecting device of ring and comprehensive utilization device Active CN205619776U (en)

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CN201521131895.9U CN205619776U (en) 2015-12-30 2015-12-30 Cold quick -witted unorganized emission exhaust gas collecting device of ring and comprehensive utilization device

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