CN208008842U - System for coupling top pressure-equalizing gas recovery and blast furnace gas dry dust removal - Google Patents
System for coupling top pressure-equalizing gas recovery and blast furnace gas dry dust removal Download PDFInfo
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- CN208008842U CN208008842U CN201820328593.8U CN201820328593U CN208008842U CN 208008842 U CN208008842 U CN 208008842U CN 201820328593 U CN201820328593 U CN 201820328593U CN 208008842 U CN208008842 U CN 208008842U
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- 239000000428 dust Substances 0.000 title claims abstract description 197
- 238000010168 coupling process Methods 0.000 title claims abstract description 36
- 230000008878 coupling Effects 0.000 title claims abstract description 35
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 35
- 238000011084 recovery Methods 0.000 title claims abstract description 22
- 239000003034 coal gas Substances 0.000 claims abstract description 126
- 238000007599 discharging Methods 0.000 claims abstract description 28
- 239000007789 gas Substances 0.000 claims description 331
- 239000003245 coal Substances 0.000 claims description 115
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 79
- 229910052757 nitrogen Inorganic materials 0.000 claims description 38
- 238000007664 blowing Methods 0.000 claims description 36
- 238000004064 recycling Methods 0.000 claims description 26
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 3
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- 238000004140 cleaning Methods 0.000 description 14
- 238000001914 filtration Methods 0.000 description 11
- 238000010926 purge Methods 0.000 description 10
- 238000000746 purification Methods 0.000 description 9
- 238000010276 construction Methods 0.000 description 6
- 238000005453 pelletization Methods 0.000 description 5
- 238000011144 upstream manufacturing Methods 0.000 description 5
- 230000006837 decompression Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000004744 fabric Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
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- 238000000605 extraction Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241000549548 Fraxinus uhdei Species 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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- Blast Furnaces (AREA)
Abstract
The utility model provides a system for coupling recovery of furnace top pressure-equalizing coal gas and dry-type dust removal of blast furnace gas, include: the top pressure equalizing gas recoverer has the inlet connected to the material tank, the outlet connected to the gas pipe network, the ash discharging port in the lower end and the ash conveying port in the side wall; the inlet of the blast furnace gas dry dust remover is connected with the blast furnace, the outlet of the blast furnace gas dry dust remover is connected with a gas pipe network through a TRT, the lower end of the blast furnace gas dry dust remover is provided with an ash discharge port, the ash discharge port of the blast furnace gas dry dust remover is connected with an ash conveying port through an ash conveying pipe, and the outlet of the blast furnace gas dry dust remover is connected with the ash conveying pipe through an ash conveying purified gas pipe. The utility model can couple the top pressure-equalizing gas recoverer of the blast furnace and the blast furnace gas dry dust collector into a whole, saves resources and has low cost.
Description
Technical field
The utility model is related to blast furnace field of engineering technology, specifically a kind of coupling furnace top even pressure coal-gas recovering and blast furnace coal
The system of gas dry dust removal, more specifically a kind of coupling furnace top even pressure coal-gas recovering and blast furnace gas purification dry bag-type dedusting
System.
Background technology
In current blast furnace engineering construction project, the furnace top even pressure gas recovery system and blast furnace gas purification of blast furnace are dry
Formula bag-type dust removal system is two independent systems.The furnace top even pressure gas recovery system of blast furnace is the feeding batch can of blast furnace system
One auxiliary system of subsystem, the coal gas being served only in filtering batch can, that is, collect pressure coal gas when feeding to batch can, so
After be dusted recycling, wherein it uses control system and storage independently of blast furnace gas purification dry dust removal system
Ash system.And blast furnace gas purification dry bag-type dust pelletizing system is to be listed in the dust pelletizing system of blast furnace system, is used only for locating
Half purified gas of blast furnace that furnace roof is drawn is managed, to reach the dustiness requirement of subsequent technique needs.
The furnace top even pressure gas recovery system of existing blast furnace is to purify the crude gas in batch can, because purified
Clean coal atmospheric pressure is low, so gaspipe network can only be fed directly to, ash-transmission system is using independent nitrogen ash-transmission system, i.e.,
The system for using nitrogen as carrier gas medium conveying ashes, and the blast furnace ash for filtering batch can coal gas is sent into blast furnace roof and presses coal
The big ash cellar of gas recovery system, then pulled away with haulage vehicle.And existing blast furnace gas purification dry bag-type dust pelletizing system be by
The blast furnace gas of blast furnace roof is filtered, because purified purified gas still has an overbottom pressure, therefore by its fed downstream TRT (Blast
Furnace Top Gas Recovery Turbine Unit, i.e. blast-furnace top gas recovery turbine generator), through under TRT pressure
Gaspipe network is re-fed into after drop, ash-transmission system uses independent nitrogen ash-transmission system, and blast furnace ash feeding blast furnace gas purification is done
The big ash cellar of formula bag-type dust removal system, then pulled away with haulage vehicle.Existing furnace top even pressure gas recovery system and blast furnace gas
The existing contact of purification dry bag-type dust pelletizing system is only in that the terminal of final purification coal gas is all gaspipe network.
But there is following deficiency in the above-mentioned prior art：(1) position of the two systems is mutual indepedent, space availability ratio
It is low, it takes up a large area；(2) the technique rank of the two systems is different, and functional independence, can not be spare each other, construction investment and
Running cost is big；(3) the rear end pressure of blast furnace gas purification dry bag-type dust pelletizing system is very high, cannot directly be sent into purified gas
Gaspipe network, and it needs to rely on the defeated ash of nitrogen, causes the nitrogen wasting of resources.
Utility model content
The purpose of this utility model is to provide a kind of coupling furnace top even pressure coal-gas recovering and blast furnace gas dry dust removal is
The furnace top even pressure coal-gas recovering device of blast furnace and blast furnace gas dry dust removal apparatus are coupled as an entirety, economized on resources by system,
It is at low cost.
Following technical proposal can be used to realize in the above-mentioned purpose of the utility model：
The utility model provides a kind of system of coupling furnace top even pressure coal-gas recovering and blast furnace gas dry dust removal, packet
It includes：Furnace top even pressure coal-gas recovering device, the entrance of the upper end are connected with batch can, and the outlet of the upper end is connected with gaspipe network, under
End is equipped with cinder-discharging port, and side wall is equipped with defeated grey mouth；Blast furnace gas dry dust removal apparatus, entrance with below the batch can
Blast furnace is connected, and outlet is connected through blast-furnace top gas recovery turbine generator with the gaspipe network, and lower end is equipped with cinder-discharging port,
The defeated grey mouth phase that the cinder-discharging port of the blast furnace gas dry dust removal apparatus passes through ash pipeline and the furnace top even pressure coal-gas recovering device
Even, the outlet of the blast furnace gas dry dust removal apparatus is connected with clean coal tracheae with the ash pipeline by defeated ash.
Preferably, the outlet of the blast furnace gas dry dust removal apparatus passes through recoil clean coal tracheae and the furnace top even pressure
The outlet of coal-gas recovering device is connected.
Preferably, the outlet of the blast furnace gas dry dust removal apparatus passes through feeding tank clean coal tracheae and the batch can phase
Even.
Preferably, the coupling furnace top even pressure coal-gas recovering and the system of blast furnace gas dry dust removal further include nitrogen tonifying Qi
Device, the nitrogen making-up air device are connected with the batch can.
Preferably, the coupling furnace top even pressure coal-gas recovering and the system of blast furnace gas dry dust removal further include gas conveying
Device and back-blowing dust removing device, the back-blowing dust removing device are set to the side wall of the blast furnace gas dry dust removal apparatus, the gas
Body conveying device is connected with the back-blowing dust removing device and the ash pipeline respectively, the air transporting arrangement and the ash pipeline
Between be equipped with explosion-proof ball valve and non-return valve.
Preferably, the entrance of the air transporting arrangement is connected with nitrogen gas tank, and the back-blowing dust removing device can be by the gas
The nitrogen of body conveying device output is blown into the blast furnace gas dry dust removal apparatus.
Preferably, the entrance of the air transporting arrangement is connected with the outlet of the blast furnace gas dry dust removal apparatus, institute
It states and is equipped with high-temperature solenoid valve between the outlet of air transporting arrangement and the back-blowing dust removing device, the back-blowing dust removing device can incite somebody to action
The purified gas of the air transporting arrangement output is blown into the blast furnace gas dry dust removal apparatus.
Preferably, the defeated ash is equipped with explosion-proof ball valve and non-return valve, the furnace top even pressure coal-gas recovering with clean coal tracheae
The cinder-discharging port of the cinder-discharging port of device and the blast furnace gas dry dust removal apparatus is equipped with unloading valve.
Preferably, the outlet of the furnace top even pressure coal-gas recovering device is by recycling clean coal tracheae and the gaspipe network phase
Even, deduster, the deduster and the blast furnace gas are equipped between the blast furnace and the blast furnace gas dry dust removal apparatus
Half clean coal tracheae is equipped between the entrance of dry dust removal apparatus, the outlet of the blast furnace gas dry dust removal apparatus is equipped with purified gas
It is responsible for, one end of outlet of the purified gas supervisor far from the blast furnace gas dry dust removal apparatus is respectively with the defeated ash with only
Gas pipe, recoil clean coal tracheae, feeding tank are connected with clean coal tracheae with the blast-furnace top gas recovery turbine generator.
Preferably, the endotracheal pressure of half clean coal is more than the pressure in purified gas supervisor, the purified gas master
Pressure in pipe is more than the defeated endotracheal pressure of ash clean coal, and the defeated endotracheal pressure of ash clean coal is equal to described anti-
The endotracheal pressure of punching clean coal, the endotracheal pressure of recoil clean coal are more than the endotracheal pressure of the recycling clean coal,
The recycling endotracheal pressure of clean coal is more than the pressure of the gaspipe network.
Preferably, the blast furnace gas dry dust removal apparatus includes the bag filter of multiple parallel connections, multiple cloth bags
The entrance of deduster collects the entrance to form the blast furnace gas dry dust removal apparatus, and the outlet of multiple bag filters converges
Collection forms the outlet of the blast furnace gas dry dust removal apparatus, and the cinder-discharging port of the lower end of multiple bag filters collects to be formed
The cinder-discharging port of the blast furnace gas dry dust removal apparatus.
The characteristics of the utility model coupling furnace top even pressure coal-gas recovering and the system of blast furnace gas dry dust removal and advantage are：
1, the coal gas that blast furnace is drawn is formed half purified gas by the utility model after deduster filters, and half purified gas is introduced into
It is filtered in blast furnace gas dry dust removal apparatus, filtered purified gas is divided into four after entering purified gas supervisor from outlet
Point, a part of purified gas enters gaspipe network after blast-furnace top gas recovery turbine generator (i.e. TRT) decompression, so that user makes
With another part purified gas enters ash pipeline through defeated ash clean coal tracheae, to convey unloading from blast furnace gas dry dust removal apparatus
Grey mouth is fallen into the ashes of ash pipeline, so that defeated grey mouth of those ashes through furnace top even pressure coal-gas recovering device is delivered to furnace roof equal
It presses in the ash cellar in coal-gas recovering device, realizes the function of conveying ashes, and using the ash cellar of furnace top even pressure coal-gas recovering device as height
The storage ash structure of producer gas dry dust removal apparatus, another part purified gas is through recoil clean coal tracheae, recycling clean coal tracheae and stove
The outlet of top pressure coal-gas recovering device enters furnace top even pressure coal-gas recovering device, clear to carry out blowback to furnace top even pressure coal-gas recovering device
Ash saves the investment using nitrogen blowback equipment, and another part purified gas enters batch can through feeding tank clean coal tracheae, to maintain
Expect pressure inside the tank, ensure feeding, in addition, the outlet of purified gas supervisor can also set quintafurcation again, blast furnace gas dry type is removed
The filtered purified gas of dirt device returns blast furnace coal by air transporting arrangement, high-temperature solenoid valve and back-blowing dust removing device, then blowback
In gas dry dust removal apparatus, reverse gas cleaning is carried out.
2, the utility model also sets up spare nitrogen making-up air device, to be sent from blast furnace gas dry dust removal apparatus entrance
Batch can uses when cannot be satisfied batch can demand with the purified gas of clean coal tracheae, to ensure the pressure of batch can normal work, meanwhile, this
Utility model also sets up air transporting arrangement and back-blowing dust removing device, with defeated into back-blowing dust removing device by air transporting arrangement
It send purge gas, and then conveys into blast furnace gas dry dust removal apparatus by back-blowing dust removing device purge gas to carry out blowback clear
Ash uses moreover, air transporting arrangement can also be cannot be satisfied with the purified gas of clean coal tracheae when defeated ash needs in defeated ash, ensures high
In the ashes energy smooth delivery of power that producer gas dry dust removal apparatus is fallen to the ash cellar of furnace top even pressure coal-gas recovering device, defeated ash work is steady
It is fixed reliable.
3, the utility model is removed furnace top even pressure coal-gas recovering and blast furnace gas dry type by the defeated ash of coal gas blowback and coal gas
Dirt efficient coupling merges into a system, realizes integration, reduces repeated construction investment cost, realizing will be relatively cheap
Coal gas of high temperature replace nitrogen at room to carry out the function of defeated ash, both saved construction and production and operation cost, and also ensured furnace roof
Higher temperature can be maintained by pressing in coal-gas recovering device, saved the use of tracing steam, avoided filter bag local cooling and generate analysis
Go out mechanical water and cause ashes hardened phenomenon, while furnace roof is also saved by the purified gas blowback of blast furnace gas dry dust removal apparatus
The nitrogen back-blowing device of coal-gas recovering device is pressed, it is cost-effective, and integrated system high degree of automation, reduce artificial input.
Description of the drawings
The following drawings is only intended in doing schematical explanation and illustration to the utility model, not new to limit this practicality
The range of type.
Fig. 1 is the structural representation that the utility model couples furnace top even pressure coal-gas recovering and the system of blast furnace gas dry dust removal
Figure.
Fig. 2 is the structural schematic diagram of the utility model furnace top even pressure coal-gas recovering device.
Fig. 3 is the structural representation of the jacking ejecting type bag filter of the utility model blast furnace gas dry dust removal apparatus
Figure.
Fig. 4 be the utility model blast furnace gas dry dust removal apparatus side into ejecting type bag filter structural representation
Figure.
Fig. 5 is that the side of the utility model blast furnace gas dry dust removal apparatus goes out the structural representation of formula bag filter into side
Figure.
Fig. 6 is the network cloth of multiple jacking ejecting type bag filters of the utility model blast furnace gas dry dust removal apparatus
Set structural schematic diagram.
Fig. 7 be the utility model blast furnace gas dry dust removal apparatus multiple sides into ejecting type bag filter network cloth
Set structural schematic diagram.
Fig. 8 is that multiple sides of the utility model blast furnace gas dry dust removal apparatus go out the network cloth of formula bag filter into side
Set structural schematic diagram.
Drawing reference numeral explanation：
1, skip car；2, batch can；3, blast furnace；4, nitrogen making-up air device；5, cyclone dust collectors；6, raw coke oven gas pipe；7, furnace roof
Press coal-gas recovering device；8, defeated grey vehicle；9, deduster；10, half clean coal tracheae；11, blast furnace gas dry dust removal apparatus；12, net
Coal gas is responsible for；13, defeated ash clean coal tracheae；14, explosion-proof ball valve；15, non-return valve；16, blowback is responsible for；17, air transporting arrangement；
18, back-blowing dust removing device；19, ash pipeline；20, recoil clean coal tracheae；21, blast-furnace top gas recovery turbine generator；22, coal
Gas pipe network；23, feeding tank clean coal tracheae；24, clean coal tracheae is recycled；
V1, half clean coal air valve；V2, clean coal air valve；V4, raw coke oven gas valve；V7, recycling clean coal air valve；V8, clean coal
Gas recoil valve；V9, purified gas feeding tank valve；V10, batch can outlet valve；
P1, first pressure sensor；P2, second pressure sensor；P3, third pressure sensor；P4, the 4th pressure sensing
Device；P5, the 5th pressure sensor；P6, the 6th pressure sensor；T1, the first temperature sensor；T2, second temperature sensor；
T3, third temperature sensor；T4, the 4th temperature sensor；T5, the 5th temperature sensor；T6, the 6th temperature sensor；F1,
One flow sensor；F2, second flow sensor；F3, third flow sensor；F4, the 4th flow sensor；F5, the 5th stream
Quantity sensor；F6, the 6th flow sensor.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
In addition to non-individual defines the direction pointed out, the upper and lower equal directions being referred to herein are with the utility model
Shown in subject to upper and lower equal directions in Fig. 1, illustrate in this together.
As shown in Figures 1 to 8, a kind of coupling furnace top even pressure coal-gas recovering of the utility model offer is removed with blast furnace gas dry type
The system of dirt comprising：The entrance of furnace top even pressure coal-gas recovering device 7, the upper end is connected with batch can 2, the outlet of the upper end and coal
Gas pipe network 22 is connected, and lower end is equipped with cinder-discharging port, and side wall is equipped with defeated grey mouth；Blast furnace gas dry dust removal apparatus 11, entrance
It is connected with the blast furnace 3 positioned at 2 lower section of the batch can, exports through blast-furnace top gas recovery turbine generator 21 (i.e. TRT) and institute
It states gaspipe network 22 to be connected, lower end is equipped with cinder-discharging port, and the cinder-discharging port of the blast furnace gas dry dust removal apparatus 11 passes through defeated ash
Pipe 19 (i.e. Ash Conveying Pipe, ACP) is connected with the defeated grey mouth of the furnace top even pressure coal-gas recovering device 7, the blast furnace
The outlet of coal gas dry dust removal apparatus 11 is connected with clean coal tracheae 13 with the ash pipeline 19 by defeated ash.
The system namely furnace top even pressure of coupling the furnace top even pressure coal-gas recovering and blast furnace gas dry dust removal of the utility model
Coupled system (the i.e. Interstage Coupling System in Hybrid of coal-gas recovering and blast furnace gas dry dust removal
Of Equalizing gas recovery and Networks of blast furnace gas dedusters), referred to as
I-CHEN, 11 (i.e. Networks of blast furnace gas of blast furnace gas dry dust removal apparatus therein
Dedusters, abbreviation N-BFG-D) be and furnace top even pressure coal-gas recovering device 7 (i.e. Equalizing gas recovery, abbreviation
EGR the Blast Furnace of the level-one belonging to) is arranged side by side, therefore the utility model is really coal-gas recovering and the interstage coupling system of dedusting
(i.e. Interstage Coupling System).
The upper end of the batch can 2 of the utility model is equipped with import, and to receive the material of skip car 1, the lower end of batch can 2 is equipped with out
Mouthful, to unload material into the blast furnace 3 set on 2 lower section of batch can, in blast furnace normal course of operation, every time by the object in batch can 2
It before material is packed into blast furnace 3, is both needed to carry out pressurising operation, makes the pressure in batch can 2 and Top of BF pressure balance, 2 lower section of batch can
Lower sealing valve could open realization feed into blast furnace 3, wait after feeding, need to by the raw coke oven gas in batch can 2 be discharged ability
The upper sealing valve for opening 2 top of batch can, with the feeding into batch can 2.
The furnace top even pressure coal-gas recovering device 7 of the utility model is the cleaner (as shown in Figure 2) of jacking ejection, and furnace roof is equal
The entrance and outlet stagger setting for pressing 7 upper end of coal-gas recovering device, set between batch can 2 and the entrance of furnace top even pressure coal-gas recovering device 7
There are cyclone dust collectors 5 (cyclone dust collectors 5 are structure well known in the prior art), is carried out with the raw coke oven gas come out to batch can 2 thick
Filter, between batch can 2 and cyclone dust collectors 5 be equipped with escape pipe, escape pipe be equipped with batch can outlet valve V10, cyclone dust collectors 5 with
Raw coke oven gas pipe 6 is equipped between the entrance of furnace top even pressure coal-gas recovering device 7, raw coke oven gas pipe 6 is equipped with raw coke oven gas valve V4, and furnace roof is equal
The outlet of pressure coal-gas recovering device 7 is connected by recycling clean coal tracheae 24 with gaspipe network 22, so that purified purified gas enters
Gaspipe network 22, for users to use, recycling clean coal tracheae 24 are equipped with recycling clean coal air valve V7, it is preferred that recycling purified gas
Valve V7 is blank-plate valve.
Each bag filter of the blast furnace gas dry dust removal apparatus 11 of the utility model can be that the dedusting of jacking ejection is set
Standby (as shown in Figure 3) is subtracted with realizing that furnace top even pressure coal-gas recovering device 7 is built with the unified of blast furnace gas dry dust removal apparatus 11
Few lectotype selection, can be spare each other, i.e. the entrance and exit of blast furnace gas dry dust removal apparatus 11 is provided thereon on end face, high
The entrance of 11 upper end of producer gas dry dust removal apparatus and outlet stagger setting, blast furnace 3 and blast furnace gas dry dust removal apparatus 11
It is equipped with deduster 9 between entrance, deduster 9, deduster 9 and height are equipped between blast furnace 3 and blast furnace gas dry dust removal apparatus 11
Half clean coal tracheae 10 is equipped between the entrance of producer gas dry dust removal apparatus 11, half clean coal tracheae 10 is equipped with half clean coal air valve
V1, the outlet of blast furnace gas dry dust removal apparatus 11 are equipped with purified gas and are responsible for 12, and the middle part of purified gas supervisor 12 is equipped with purified gas
Valve V2, purified gas be responsible for 12 outlets far from blast furnace gas dry dust removal apparatus 11 one end respectively with it is defeated ash use clean coal tracheae
13, recoil clean coal tracheae 20, feeding tank are connected with clean coal tracheae 23 with blast-furnace top gas recovery turbine generator 21, will be net
Coal gas is divided into four parts, wherein the part after being depressured by blast-furnace top gas recovery turbine generator 21 is directly entered gas pipe
Net 22, with for users to use, certainly, each bag filter of blast furnace gas dry dust removal apparatus 11 is alternatively side removing into ejection
Dirt equipment (as shown in Figure 4), the i.e. entrance of blast furnace gas dry dust removal apparatus 11 are set to its side wall, and export and be provided thereon end face
On, alternatively, each bag filter of blast furnace gas dry dust removal apparatus 11 is alternatively cleaner that side goes out into side (such as Fig. 5 institutes
Show), i.e., the entrance and exit interval of blast furnace gas dry dust removal apparatus 11 be set to its side wall.
Further, as shown in Figure 1, the outlet of the blast furnace gas dry dust removal apparatus 11 passes through recoil clean coal tracheae
20 are connected with the outlet of the furnace top even pressure coal-gas recovering device 7, specifically, recoil clean coal tracheae 20 is connected to purified gas supervisor
Between 12 and recycling clean coal tracheae 24, and recoils and be located at recycling purified gas with the contact for recycling clean coal tracheae 24 with clean coal tracheae 20
The upstream (i.e. lower section shown in Fig. 1) of valve V7, to pass through 11 purified purified gas pair of blast furnace gas dry dust removal apparatus
Furnace top even pressure coal-gas recovering device 7 carries out recoil cleaning, avoids in additional nitrogen blowback is arranged on furnace top even pressure coal-gas recovering device 7
Equipment saves equipment investment and nitrogen resource, meanwhile, recoil clean coal tracheae 20 and recycling purified gas are connected by three-port structure
Pipe 24 makes purge gas share the outlet of furnace top even pressure coal-gas recovering device 7 with the purified gas for being sent to gaspipe network 22, reduces system
Complexity reduces equipment investment, and recoil clean coal tracheae 20 is equipped with purified gas recoil valve V8, to control recoil cleaning
Keying, it is preferred that recoil valve V8 of purified gas is blank-plate valve, in blowback, the clean coal of blast furnace gas dry dust removal apparatus 11
Gas supervisor 12 by recoil with clean coal tracheae 20 reverse gas cleaning into furnace top even pressure coal-gas recovering device 7, because being deposited between blowback twice
In time interval, namely and it is discrete, therefore high-voltage pulse purified gas is formed, with this by the filter of furnace top even pressure coal-gas recovering device 7
The dust of bag attachment shakes off, and certainly, can also retain nitrogen back-blowing dust removing device (such as Fig. 2 of 7 side wall of furnace top even pressure coal-gas recovering device
It is shown), with alternately.
Further, as shown in Figure 1, the outlet of the blast furnace gas dry dust removal apparatus 11 passes through feeding tank purified gas
Pipe 23 is connected with the batch can 2, is removed with batch can 2 and whirlwind specifically, feeding tank is set to purified gas supervisor 12 with clean coal tracheae 23
Between escape pipe between dirt device 5, and feeding tank clean coal tracheae 23 and the contact of escape pipe are located at batch can outlet valve V10's
Upstream (i.e. left side shown in Fig. 1), to be filled to batch can 2 by 11 purified purified gas of blast furnace gas dry dust removal apparatus
Pressure ensures smoothly feeding and to feed into blast furnace 3 into batch can 2, saves equipment investment and nitrogen resource, feeding tank purified gas
Pipe 23 is equipped with purified gas feeding tank valve V9, to control the keying that purified gas supervisor 12 works to 2 pressurising of batch can, worked
Cheng Zhong, every 5 minutes blast furnace gas dry dust removal apparatus, 11 purified purified gas is primary to 2 pressurising of batch can, and each pressurising amount is
80Nm3, batch can 2 can be also vented once by escape pipe and raw coke oven gas pipe 6 to furnace top even pressure coal-gas recovering device 7 for every 5 minutes, and height
11 purified purified gas of producer gas dry dust removal apparatus can also utilize 5 minutes gaps, right with clean coal tracheae 20 by recoil
Furnace top even pressure coal-gas recovering device 7 carries out reverse gas cleaning, because reverse gas cleaning control is coming in gas interval time section so that it can be dropped
The pressure fluctuations amplitude of the gaspipe network 22 of low pressure.
Further, as shown in Figure 1, it is described coupling furnace top even pressure coal-gas recovering and blast furnace gas dry dust removal system also
Including nitrogen making-up air device 4, the nitrogen making-up air device 4 is connected with the batch can 2, with by nitrogen making-up air device 4 to batch can 2
Pressurising tonifying Qi, it is preferred that the escape pipe between nitrogen making-up air device 4 and batch can 2 and cyclone dust collectors 5 passes through tonifying Qi pipeline phase
Even, the contact between tonifying Qi pipeline and escape pipe is located at the upstream (i.e. left side shown in Fig. 1) of batch can outlet valve V10, and
Blowdown pipe road is equipped with explosion-proof ball valve and non-return valve, wherein nitrogen making-up air device 4 can simultaneously be set with feeding tank with clean coal tracheae 23
Set, also can independently be arranged, i.e., the utility model can only with nitrogen tonifying Qi into batch can 2, also can only with purified gas to
Combination tonifying Qi into batch can 2 of nitrogen and purified gas can also be used in tonifying Qi in batch can 2, when the two, which combines, to be arranged, nitrogen tonifying Qi
The conduct of device 4 is spare, when feeding tank cannot be satisfied the pressurising requirement of batch can 2 with the purified gas that clean coal tracheae 23 conveys, can adopt
With the pressurising into batch can 2 of nitrogen making-up air device 4, wherein nitrogen making-up air device 4 is structure well known in the prior art.
Further, as shown in Figure 1, it is described coupling furnace top even pressure coal-gas recovering and blast furnace gas dry dust removal system also
Including air transporting arrangement 17 and back-blowing dust removing device 18, the back-blowing dust removing device 18 is set to the blast furnace gas dry dust removal
The side wall of device 11, the air transporting arrangement 17 are connected with the back-blowing dust removing device 18 and the ash pipeline 19 respectively, tool
Body, the outlet of air transporting arrangement 17 is equipped with blowback and is responsible for 16, and it is two branched pipes that blowback, which is responsible for 16 points, to utilize first point
Branch pipe is connected with back-blowing dust removing device 18, and to provide purge gas for back-blowing dust removing device 18, realization removes blast furnace gas dry type
The blowback of dirt device 11 is cleaned, simultaneously, moreover it is possible to when the purified gas in defeated ash clean coal tracheae 13 can not complete ashes conveying, profit
It is connected to ash pipeline 19 with second branched pipe, the ashes which unloads is delivered to furnace top even pressure coal gas along ash pipeline 19
In ash cellar in recover 7, i.e., air transporting arrangement 17 and its second branched pipe are the standby of blast furnace gas dry dust removal apparatus 11
With ash handing pipeline namely its be the pipeline in parallel with defeated ash clean coal tracheae 13, wherein air transporting arrangement 17 and reverse gas cleaning
Device 18 is structure well known in the prior art, and explosion-proof ball is equipped between the air transporting arrangement 17 and the ash pipeline 19
Valve and non-return valve, preferably, the explosion-proof ball valve and non-return valve are set to the of the blowback supervisor 16 of the outlet of air transporting arrangement 17
On two branched pipes.
In one embodiment, the entrance of the air transporting arrangement 17 is connected with nitrogen gas tank, the back-blowing dust removing device
The nitrogen that the air transporting arrangement 17 exports can be blown into the blast furnace gas dry dust removal apparatus 11 by 18, so that nitrogen is through anti-
The first branched pipe for blowing supervisor 16 enters air transporting arrangement 17, so by nitrogen to blast furnace gas dry dust removal apparatus 11 into
Row recoil deashing；In another embodiment, the entrance of the air transporting arrangement 17 is filled with the blast furnace gas dry dust removal
The 11 connected (not shown) in outlet is set, such as 12 can be responsible in the purified gas of the outlet of blast furnace gas dry dust removal apparatus 11
On set a quintafurcation again, between the outlet of the air transporting arrangement 17 and the back-blowing dust removing device 18 be equipped with high-temperature electromagnetic
Valve (is not shown in figure, wherein high-temperature solenoid valve is structure well known in the prior art), and the back-blowing dust removing device 18 can be by institute
The purified gas for stating the output of air transporting arrangement 17 is blown into the blast furnace gas dry dust removal apparatus 11, to utilize blast furnace gas dry type
The filtered purified gas of dust-extraction unit 11 oneself is returned through air transporting arrangement 17, high-temperature solenoid valve and back-blowing dust removing device 18
Reverse gas cleaning is carried out in blast furnace gas dry dust removal apparatus 11, saves resource, reduces operation cost.
Further, as shown in Figure 1, the defeated ash is equipped with explosion-proof ball valve 14 and non-return valve 15, institute with clean coal tracheae 13
The cinder-discharging port of the cinder-discharging port and the blast furnace gas dry dust removal apparatus 11 of stating furnace top even pressure coal-gas recovering device 7, which is equipped with, unloads ash
Valve unloads the keying of ash work with control.
The half clean coal tracheae 10 of the utility model is equipped with the first pressure for detecting, showing and fed back to controller and passes
Sensor P1, the first temperature sensor T1 and first flow sensor F1, first pressure sensor P1, the first temperature sensor T1 and
First flow sensor F1 is set to the upstream of half clean coal air valve V1 on half clean coal tracheae 10；Purified gas supervisor 12, which is equipped with, to be used
In detection, display and second pressure sensor P2, second temperature sensor T2 and the second flow sensor fed back to controller
F2, second pressure sensor P2, second temperature sensor T2 and second flow sensor F2 are set to the clean coal of purified gas supervisor 12
Between air valve V2 and downstream end；Gaspipe network 22 is equipped with the third pressure for detecting, showing and fed back to controller
Sensor P3, third temperature sensor T3 and third flow sensor F3；Raw coke oven gas pipe 6 be equipped with for detect, show and to
The 4th pressure sensor P4, the 4th temperature sensor T4 and the 4th flow sensor F4 of controller feedback, the 4th pressure sensing
Device P4, the 4th temperature sensor T4 and the 4th flow sensor F4 are set to raw coke oven gas valve V4 and the cyclone dust removal of raw coke oven gas pipe 6
Between device 5；Defeated ash clean coal tracheae 13 be equipped with the 5th pressure sensor P5 for detecting, showing and fed back to controller,
5th temperature sensor T5 and the 5th flow sensor F5, the 5th pressure sensor P5, the 5th temperature sensor T5 and the 5th stream
Quantity sensor F5 is set to the upstream of the explosion-proof ball valve 14 on defeated ash clean coal tracheae 13；Blowback supervisor 16 be equipped with for detecting,
Display and the 6th pressure sensor P6, the 6th temperature sensor T6 and the 6th flow sensor F6 fed back to controller, the 6th
Pressure sensor P6, the 6th temperature sensor T6 and the 6th flow sensor F6 are located at the upper of two branched pipes of blowback supervisor 16
Trip.
Further, as shown in Figure 1, the pressure in half clean coal tracheae 10 is approximately equal to the pressure in raw coke oven gas pipe 6, half clean coal
Pressure in tracheae 10 is more than the pressure in purified gas supervisor 12, and the pressure in purified gas supervisor 12 is more than defeated ash clean coal tracheae
Pressure in 13, defeated ash use the pressure in clean coal tracheae 13 to be equal to the pressure in recoil clean coal tracheae 20, recoil purified gas
Pressure in pipe 20 is more than the pressure in recycling clean coal tracheae 24, and the pressure in recycling clean coal tracheae 24 is more than gaspipe network 22
Pressure, in a preferred embodiment, the pressure in purified gas supervisor 12 are 0.2Mpa, the pressure position in defeated ash clean coal tracheae 13
0.19Mpa, recoil are 0.19Mpa with the pressure in clean coal tracheae 20, and the pressure of gaspipe network 22 is 0.013MPa.
Further, blast furnace gas dry dust removal apparatus 11 includes the bag filter of multiple parallel connections, such as Fig. 6 to Fig. 8 institutes
Show, to form multiple bag filters of network type, the entrance of multiple bag filters collects to form blast furnace gas dry dust removal
The entrance of device 11, enables half purified gas to come from blast furnace 3 to enter each bag filter, and the outlet of multiple bag filters converges
Collection forms the outlet of blast furnace gas dry dust removal apparatus 11, enables to enter purified gas through the purified purified gas of each bag filter
Supervisor 12, the cinder-discharging port of the lower end of multiple bag filters collects the cinder-discharging port to form blast furnace gas dry dust removal apparatus 11, makes
The ashes of each bag filter discharge can enter ash pipeline 19.
The coupling process packet of the coupling furnace top even pressure coal-gas recovering of the utility model and the system of blast furnace gas dry dust removal
Include following steps：
Step a：Raw coke oven gas in batch can 2 is recycled to filtering in furnace top even pressure coal-gas recovering device 7, and will be filtered net
Coal gas is fed directly to gaspipe network 22, filtering in the coal-gas recovering that blast furnace 3 is discharged to blast furnace gas dry dust removal apparatus 11,
And filtered a part of purified gas is delivered to the gaspipe network after the decompression of blast-furnace top gas recovery turbine generator 21
22；
Step b：Through 11 filtered another part purified gas of the blast furnace gas dry dust removal apparatus through defeated ash clean coal
Tracheae 13 enters ash pipeline 19, the ashes that the cinder-discharging port of the blast furnace gas dry dust removal apparatus 11 unloads is delivered to described
In furnace top even pressure coal-gas recovering device 7；
Step c：Another part purified gas is delivered to gaspipe network after the furnace top even pressure coal-gas recovering device 7 filtering
22, with for users to use, the ashes in the furnace top even pressure coal-gas recovering device 7 are unloaded through cinder-discharging port down toward defeated grey vehicle 8, and by defeated
Grey vehicle 8 pulls away.
Specifically, in step a, the batch can outlet valve V10 on escape pipe, the raw coke oven gas valve on raw coke oven gas pipe 6 are opened
Recycling clean coal air valve V7 on door V4 and recycling clean coal tracheae 24, furnace top even pressure coal is recycled to by the raw coke oven gas in batch can 2
Filtering in gas recover 7, and filtered purified gas is fed directly to gaspipe network 22；Meanwhile opening half clean coal tracheae 10
On half clean coal air valve V1 and purified gas supervisor 12 on clean coal air valve V2, the crude gas that blast furnace 3 is discharged is through dedusting
Half purified gas is formed after device 9, half purified gas is recycled to filtering in blast furnace gas dry dust removal apparatus 11, and by filtered one
Purified gas is divided to be delivered to the gaspipe network 22 after the decompression of blast-furnace top gas recovery turbine generator 21；In stepb, it opens
The unloading valve of blast furnace gas dry dust removal apparatus 11 makes another part purified gas enter ash pipeline through defeated ash clean coal tracheae 13
19, the ashes that the cinder-discharging port of blast furnace gas dry dust removal apparatus 11 unloads are delivered in furnace top even pressure coal-gas recovering device 7；
In step c, the unloading valve of furnace top even pressure coal-gas recovering device 7 is opened, ashes are unloaded through cinder-discharging port and are pulled away down toward defeated grey vehicle 8.
Further, right by the cyclone dust collectors 5 between batch can 2 and furnace top even pressure coal-gas recovering device 7 in step a
The raw coke oven gas that batch can 2 is discharged carries out coarse filtration, and the raw coke oven gas after coarse filtration is recycled in furnace top even pressure coal-gas recovering device 7, because of stove
The outlet of top pressure coal-gas recovering device 7 is connected to the gaspipe network 22 of low pressure, enables the raw coke oven gas that batch can 2 is discharged in subnormal ambient
Under be inhaled into furnace top even pressure coal-gas recovering device 7, meanwhile, pass through removing between blast furnace 3 and blast furnace gas dry dust removal apparatus 11
Dirt device carries out coarse filtration to form half purified gas to the coal gas that blast furnace 3 is discharged.
Further, net through the filtered another part of the blast furnace gas dry dust removal apparatus 11 in the step b
Coal gas can enter recoil clean coal tracheae 20, and the outlet through the furnace top even pressure coal-gas recovering device 7 enters the furnace top even pressure
Reverse gas cleaning is carried out in coal-gas recovering device 7, because the outlet of furnace top even pressure coal-gas recovering device 7 is connected to the gaspipe network 22 of low pressure,
Recoil is set to be inhaled into furnace top even pressure coal-gas recovering device 7 under subnormal ambient with the purified gas in clean coal tracheae 20, specifically,
When the filter bag of furnace top even pressure coal-gas recovering device 7 needs to carry out recoil deashing using the dust accumulation that certain time has comparison thick, first
The raw coke oven gas valve V4 on batch can outlet valve V10 and raw coke oven gas pipe 6 on escape pipe is closed, is opened on recycling clean coal tracheae 24
Recycling clean coal air valve V7, make the pressure reduction of furnace top even pressure coal-gas recovering device 7 to the pressure of the gaspipe network 22 of low pressure, so
The recycling clean coal air valve V7 on recycling clean coal tracheae 24 is closed afterwards, then opens the purified gas recoil on recoil clean coal tracheae 20
Valve V8, it is attached to shake off to impact the filter bag in furnace top even pressure coal-gas recovering device 7 by the pulse purified gas with certain pressure
The dust accumulation on filter bag.
Further, net through the filtered part again of the blast furnace gas dry dust removal apparatus 11 in the step b
Coal gas enters the batch can 2 through feeding tank clean coal tracheae 23,2 institute of batch can when ensureing 2 feeding of batch can and feed into blast furnace 3
Pressure is needed, specifically, closing the batch can outlet valve V10 on escape pipe, opening purified gas of the feeding tank on clean coal tracheae 23
Feeding tank valve V9 enables the purified gas in purified gas supervisor 12 to enter escape pipe through feeding tank clean coal tracheae 23, and is expecting
It is supplemented in batch can 2 under the action of low pressure in tank 2.
Further, further include step d after step c, air transporting arrangement 17 is by purge gas (nitrogen or purified gas)
It is delivered in back-blowing dust removing device 18, to carry out reverse gas cleaning to the blast furnace gas dry dust removal apparatus 11, wherein gas is defeated
The pressure for the purge gas that device 17 is delivered in back-blowing dust removing device 18 is sent to be more than in blast furnace gas dry dust removal apparatus 11
Pressure realizes reverse gas cleaning, the air transporting arrangement 17 can also be defeated by purge gas to ensure the smooth delivery of power of purge gas
It send to the ash pipeline 19, the ashes that the cinder-discharging port of the blast furnace gas dry dust removal apparatus 11 unloads is delivered to described
It is the alternative as the defeated ash of purified gas in defeated ash clean coal tracheae 13 in furnace top even pressure coal-gas recovering device 7, ensures defeated
Ash is stable and reliable in work.
The utility model it is a kind of coupling furnace top even pressure coal-gas recovering and blast furnace gas dry dust removal system the characteristics of and it is excellent
Putting is：
1, the coal gas that blast furnace 3 is drawn is formed half purified gas by the utility model after the filtering of deduster 9, and half purified gas is drawn
Enter and be filtered in blast furnace gas dry dust removal apparatus 11, filtered purified gas is divided after entering purified gas supervisor 12 from outlet
At four parts, a part of purified gas enters gaspipe network 22 after blast-furnace top gas recovery turbine generator 21 (i.e. TRT) decompression,
With for users to use, another part purified gas enters ash pipeline 19 through defeated ash clean coal tracheae 13, to convey from blast-furnace gas dry
The cinder-discharging port of formula dust-extraction unit 11 is fallen into the ashes of ash pipeline 19, makes those ashes through furnace top even pressure coal-gas recovering device 7
Defeated grey mouth be delivered in the ash cellar in furnace top even pressure coal-gas recovering device 7, realize the function of conveying ashes, and by furnace top even pressure coal
Storage ash structure of the ash cellar of gas recover 7 as blast furnace gas dry dust removal apparatus 11, another part purified gas is through recoil with only
The outlet of gas pipe 20, recycling clean coal tracheae 24 and furnace top even pressure coal-gas recovering device 7 enters furnace top even pressure coal-gas recovering device 7, with
Reverse gas cleaning is carried out to furnace top even pressure coal-gas recovering device 7, saves the investment using nitrogen blowback equipment, another part purified gas warp
Feeding tank enters batch can 2 with clean coal tracheae 23, to maintain pressure in batch can 2, ensures feeding, in addition, purified gas supervisor's 12 goes out
Mouth can also set quintafurcation again, and 11 filtered purified gas of blast furnace gas dry dust removal apparatus is passed through air transporting arrangement
17, high-temperature solenoid valve and back-blowing dust removing device 18, then blowback are returned in blast furnace gas dry dust removal apparatus 11, and reverse gas cleaning is carried out.
2, the utility model also sets up spare nitrogen making-up air device 4, with from blast furnace gas dry dust removal apparatus 11 into
Enter when feeding tank cannot be satisfied 2 demand of batch can with the purified gas of clean coal tracheae 23 and use, to ensure the pressure of the normal work of batch can 2
Power, meanwhile, the utility model also sets up air transporting arrangement 17 and back-blowing dust removing device 18, with by air transporting arrangement 17 to
Purge gas is conveyed in back-blowing dust removing device 18, and then by back-blowing dust removing device 18 into blast furnace gas dry dust removal apparatus 11
Convey purge gas carry out reverse gas cleaning, moreover, air transporting arrangement 17 can also defeated ash clean coal tracheae 13 purified gas without
Method, which meets when defeated ash needs, to be used, the ashes energy smooth delivery of power that guarantee blast furnace gas dry dust removal apparatus 11 is fallen to furnace top even pressure
In the ash cellar of coal-gas recovering device 7, defeated ash is stable and reliable in work.
3, the utility model is removed furnace top even pressure coal-gas recovering and blast furnace gas dry type by the defeated ash of coal gas blowback and coal gas
Dirt efficient coupling merges into a system, realizes integration, reduces repeated construction investment cost, realizing will be relatively cheap
Coal gas of high temperature replace nitrogen at room to carry out the function of defeated ash, both saved construction and production and operation cost, and also ensured furnace roof
Higher temperature can be maintained in pressure coal-gas recovering device 7, the use of tracing steam is saved, avoids filter bag local cooling and generate analysis
Go out mechanical water and cause ashes hardened phenomenon, while stove is also saved by the purified gas blowback of blast furnace gas dry dust removal apparatus 11
The nitrogen back-blowing device of top pressure coal-gas recovering device 7, it is cost-effective, and integrated system high degree of automation, reduce artificial throwing
Enter.
The above is only the preferred embodiment of the utility model, is not done in any form to the utility model
Limitation is not limited to the utility model although the utility model has been disclosed with preferred embodiment as above, any affiliated
Has usually intellectual in technical field, in the range of not departing from technical solutions of the utility model, when using the disclosure above
Technology contents make a little change or be modified to the equivalent embodiments of equivalent variations, as long as being without departing from the utility model technology
The content of scheme, it is made by the above technical examples according to the technical essence of the present invention it is any it is simple modification, equivalent variations with
Modification, is still within the scope of the technical solutions of the present invention.
Claims (11)
1. a kind of system of coupling furnace top even pressure coal-gas recovering and blast furnace gas dry dust removal, which is characterized in that the coupling stove
It pushes up pressure coal-gas recovering and the system of blast furnace gas dry dust removal includes：
Furnace top even pressure coal-gas recovering device, the entrance of the upper end are connected with batch can, and the outlet of the upper end is connected with gaspipe network, under
End is equipped with cinder-discharging port, and side wall is equipped with defeated grey mouth；
Blast furnace gas dry dust removal apparatus, entrance are connected with the blast furnace below the batch can, export through blast furnace gas
Waste pressure turbine power generator is connected with the gaspipe network, and lower end is equipped with cinder-discharging port, the blast furnace gas dry dust removal apparatus
Cinder-discharging port be connected by the defeated grey mouth of ash pipeline and the furnace top even pressure coal-gas recovering device, the blast furnace gas dry dust removal fills
The outlet set is connected by defeated ash clean coal tracheae with the ash pipeline.
2. the system of coupling furnace top even pressure coal-gas recovering and blast furnace gas dry dust removal according to claim 1, feature
It is, the outlet of the blast furnace gas dry dust removal apparatus passes through recoil clean coal tracheae and the furnace top even pressure coal-gas recovering device
Outlet be connected.
3. the system of coupling furnace top even pressure coal-gas recovering and blast furnace gas dry dust removal according to claim 1, feature
It is, the outlet of the blast furnace gas dry dust removal apparatus is connected with clean coal tracheae with the batch can by feeding tank.
4. coupling furnace top even pressure coal-gas recovering according to any one of claim 1 to 3 and blast furnace gas dry dust removal
System, which is characterized in that the furnace top even pressure coal-gas recovering and the system of blast furnace gas dry dust removal of coupling further includes that nitrogen is mended
Device of air, the nitrogen making-up air device are connected with the batch can.
5. coupling furnace top even pressure coal-gas recovering according to any one of claim 1 to 3 and blast furnace gas dry dust removal
System, which is characterized in that the furnace top even pressure coal-gas recovering and the system of blast furnace gas dry dust removal of coupling further includes that gas is defeated
Device and back-blowing dust removing device are sent, the back-blowing dust removing device is set to the side wall of the blast furnace gas dry dust removal apparatus, described
The outlet of air transporting arrangement is connected with the back-blowing dust removing device and the ash pipeline respectively, the air transporting arrangement and institute
It states and is equipped with explosion-proof ball valve and non-return valve between ash pipeline.
6. the system of coupling furnace top even pressure coal-gas recovering and blast furnace gas dry dust removal according to claim 5, feature
It is, the entrance of the air transporting arrangement is connected with nitrogen gas tank, and the back-blowing dust removing device can be by the air transporting arrangement
The nitrogen of output is blown into the blast furnace gas dry dust removal apparatus.
7. the system of coupling furnace top even pressure coal-gas recovering and blast furnace gas dry dust removal according to claim 5, feature
It is, the entrance of the air transporting arrangement is connected with the outlet of the blast furnace gas dry dust removal apparatus, the gas conveying
High-temperature solenoid valve is equipped between the outlet of device and the back-blowing dust removing device, the back-blowing dust removing device can be defeated by the gas
The purified gas that device exports is sent to be blown into the blast furnace gas dry dust removal apparatus.
8. the system of coupling furnace top even pressure coal-gas recovering and blast furnace gas dry dust removal according to claim 1, feature
It is, the defeated ash is equipped with explosion-proof ball valve and non-return valve, the cinder-discharging port of the furnace top even pressure coal-gas recovering device with clean coal tracheae
It is equipped with unloading valve with the cinder-discharging port of the blast furnace gas dry dust removal apparatus.
9. the system of coupling furnace top even pressure coal-gas recovering and blast furnace gas dry dust removal according to claim 1, feature
It is, the outlet of the furnace top even pressure coal-gas recovering device is connected by recycling clean coal tracheae with the gaspipe network, the blast furnace
Deduster, the deduster and the blast furnace gas dry dust removal apparatus are equipped between the blast furnace gas dry dust removal apparatus
Entrance between be equipped with half clean coal tracheae, the outlet of the blast furnace gas dry dust removal apparatus is equipped with purified gas and is responsible for, it is described only
Coal gas supervisor far from the blast furnace gas dry dust removal apparatus outlet one end respectively with it is described it is defeated ash with clean coal tracheae, recoil
It is connected with the blast-furnace top gas recovery turbine generator with clean coal tracheae, feeding tank clean coal tracheae.
10. the system of coupling furnace top even pressure coal-gas recovering and blast furnace gas dry dust removal according to claim 9, feature
It is, the endotracheal pressure of half clean coal is more than the pressure in purified gas supervisor, the pressure in the purified gas supervisor
More than the defeated endotracheal pressure of ash clean coal, the defeated ash is equal to the recoil purified gas with the endotracheal pressure of clean coal
Pressure in pipe, the endotracheal pressure of recoil clean coal are more than the endotracheal pressure of the recycling clean coal, and the recycling is net
Pressure in gas pipe is more than the pressure of the gaspipe network.
11. the system of coupling furnace top even pressure coal-gas recovering and blast furnace gas dry dust removal according to claim 1, feature
It is, the blast furnace gas dry dust removal apparatus includes the bag filter of multiple parallel connections, and multiple bag filters enter
Mouth collects the entrance to form the blast furnace gas dry dust removal apparatus, the outlet of multiple bag filters collect to be formed it is described
The cinder-discharging port of the outlet of blast furnace gas dry dust removal apparatus, the lower end of multiple bag filters collects to form the blast furnace coal
The cinder-discharging port of gas dry dust removal apparatus.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108165693A (en) * | 2018-03-09 | 2018-06-15 | 中冶京诚工程技术有限公司 | Coupling method and system for charging bucket pressure-equalizing gas recovery and blast furnace gas dry dust removal |
| CN111020081A (en) * | 2019-11-20 | 2020-04-17 | 张家港宏昌钢板有限公司 | Automatic optimization control structure and control method for mutual redundancy of multiple systems of blast furnace |
-
2018
- 2018-03-09 CN CN201820328593.8U patent/CN208008842U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108165693A (en) * | 2018-03-09 | 2018-06-15 | 中冶京诚工程技术有限公司 | Coupling method and system for charging bucket pressure-equalizing gas recovery and blast furnace gas dry dust removal |
| CN108165693B (en) * | 2018-03-09 | 2023-04-25 | 中冶京诚工程技术有限公司 | Coupling method and system for equalizing gas recovery of charging bucket and dry dust removal of blast furnace gas |
| CN111020081A (en) * | 2019-11-20 | 2020-04-17 | 张家港宏昌钢板有限公司 | Automatic optimization control structure and control method for mutual redundancy of multiple systems of blast furnace |
| CN111020081B (en) * | 2019-11-20 | 2021-11-02 | 张家港宏昌钢板有限公司 | Automatic optimization control structure and control method for mutual redundancy of multiple systems of blast furnace |
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