CN109913614A - A kind of minimum discharge cleaning treatment system of dry method dust release flue gas of converter - Google Patents
A kind of minimum discharge cleaning treatment system of dry method dust release flue gas of converter Download PDFInfo
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- CN109913614A CN109913614A CN201910104322.3A CN201910104322A CN109913614A CN 109913614 A CN109913614 A CN 109913614A CN 201910104322 A CN201910104322 A CN 201910104322A CN 109913614 A CN109913614 A CN 109913614A
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- flue gas
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- dry method
- blower
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 73
- 239000003546 flue gas Substances 0.000 title claims abstract description 70
- 239000000428 dust Substances 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000004140 cleaning Methods 0.000 title claims abstract description 17
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 64
- 239000007789 gas Substances 0.000 claims abstract description 41
- 239000004744 fabric Substances 0.000 claims abstract description 32
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 32
- 238000004880 explosion Methods 0.000 claims abstract description 18
- 239000012717 electrostatic precipitator Substances 0.000 claims abstract description 17
- 238000013022 venting Methods 0.000 claims abstract description 13
- 238000002347 injection Methods 0.000 claims abstract description 12
- 239000007924 injection Substances 0.000 claims abstract description 12
- 238000009434 installation Methods 0.000 claims abstract description 5
- 238000007664 blowing Methods 0.000 claims description 4
- 238000001704 evaporation Methods 0.000 claims description 4
- 230000008020 evaporation Effects 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 3
- 210000001367 artery Anatomy 0.000 claims description 2
- 210000003462 vein Anatomy 0.000 claims description 2
- 239000003500 flue dust Substances 0.000 abstract description 2
- 238000001816 cooling Methods 0.000 description 11
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 8
- 239000001301 oxygen Substances 0.000 description 8
- 229910052760 oxygen Inorganic materials 0.000 description 8
- 239000003034 coal gas Substances 0.000 description 6
- 239000003517 fume Substances 0.000 description 6
- 230000005684 electric field Effects 0.000 description 5
- 239000001257 hydrogen Substances 0.000 description 5
- 229910052739 hydrogen Inorganic materials 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 229910002091 carbon monoxide Inorganic materials 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000011261 inert gas Substances 0.000 description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 238000002309 gasification Methods 0.000 description 2
- 150000002431 hydrogen Chemical class 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005453 pelletization Methods 0.000 description 2
- 239000012716 precipitator Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005108 dry cleaning Methods 0.000 description 1
- 230000005685 electric field effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 238000010606 normalization Methods 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 230000026676 system process Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
Abstract
The present invention relates to a kind of minimum discharge cleaning treatment systems of dry method dust release flue gas of converter, including devaporizer, electrostatic precipitator, the first blower, switching station, gas cooler, heat exchanger, pulsed jet cloth filter, the second blower, diffusing chimney, nitrogen heater and pneumatic transporting ash sending device；Devaporizer, electrostatic precipitator, the first blower, switching station and gas cooler are sequentially connected；Deduster air inlet valve group, heat exchanger, the second blower and deduster air outlet valve group are sequentially connected；The injection entrance of switching station, pulsed jet cloth filter and diffusing chimney is sequentially connected；Pneumatic ash conveying sending device is installed below pulsed jet cloth filter；Nitrogen heater is connected with pulsed jet cloth filter and pneumatic transporting ash sending device respectively；Diffuse flue installation tracing thermal-insulating device and the first explosion venting valve.The flue dust ultra-low concentration discharge in release stage can be achieved in the present invention, achievees the purpose that high temperature resistant and explosion-proof.
Description
Technical field
The present invention relates to environment protection field, in particular to a kind of minimum discharge purification of dry method dust release flue gas of converter
Processing system.
Background technique
Existing once dust collection of converter dry cleaning and recovery system process flow: the high temperature that oxygen converter steelmaking technique generates
Flue gas (1400 DEG C~1600 DEG C) is after gasification cooling flue is cooling, and temperature is reduced to 800 DEG C~1000 DEG C, and flue gas is using evaporation
Cooler is cooling, and temperature is down to 300 DEG C~400 DEG C, and cooling while has carried out modifier treatment to flue gas, and in addition flue gas is by steaming
The coarse powder dirt for sending out cooler about 30%~40% is intercepted.Flue gas after cooling and quenched enters electric precipitator fume amount drop
To 15mg/Nm3Left and right.
There are most important problems in existing dry method system is exactly: when exhaust gas components do not meet recycling condition, by flue dust
Concentration 15mg/Nm3Flue gas or coal gas without processing, direct emission is in atmosphere.Secondly, most of dry method systems are all original
The transformation and upgrade carried out on the place of wet method system, or even there is the case where reusing to the equipment component of original wet method system, than
Such as original control room, Ventilator Room, chimney, pond.Newly-built dry method equipment arrangement be substantially all it is compact, in this way dry
It is transformed before genealogy of law system switching station just extremely difficult.
Summary of the invention
In view of the deficiencies of the prior art, the invention discloses a kind of minimum discharges of dry method dust release flue gas of converter
Cleaning treatment system.
The technical solution adopted in the present invention is as follows:
A kind of minimum discharge cleaning treatment system of dry method dust release flue gas of converter, including it is devaporizer, quiet
Electric precipitator, the first blower, switching station, gas cooler, heat exchanger, pulsed jet cloth filter, the second blower, release cigarette
Chimney, nitrogen heater and pneumatic transporting ash sending device；Pass through coal between the outlet of devaporizer and the entrance of electrostatic precipitator
Feed channel links together；It is linked together between the outlet of electrostatic precipitator and the entrance of the first blower by gas piping；
It is linked together between the outlet of first blower and the entrance of switching station by gas piping；The first outlet and coal gas of switching station
It links together between the entrance of cooler；Deduster air inlet valve group is arranged in the dust and gas inlet of pulsed jet cloth filter；Arteries and veins
Rush the net gas outlet setting deduster air outlet valve group of bag filter；Deduster air inlet valve group, heat exchanger, the second wind
Hot wind internal circulation system air hose is passed sequentially through between machine and deduster air outlet valve group to link together；The second outlet of switching station
It is linked together between the dust and gas entrance of pulsed jet cloth filter by diffusing flue；The net gas of pulsed jet cloth filter
It is linked together between outlet and the injection entrance of diffusing chimney by the first air hose；Below the ash discharging hole of pulsed jet cloth filter
Pneumatic ash conveying sending device is installed；The pipeline of the first outlet of nitrogen heater is connected with release flue；Nitrogen heater
Second outlet and pulsed jet cloth filter blowing entrance between linked together by the second air hose；Also, nitrogen heats
The second outlet of device is connected with Pneumatic ash conveying sending device；Diffuse flue installation tracing thermal-insulating device and the first explosion venting valve.
Its further technical characteristic are as follows: the second explosion venting valve is installed on the cabinet of the pulsed jet cloth filter.
Its further technical characteristic are as follows: cyclic system in the hot wind between the deduster air inlet valve group and heat exchanger
The first temperature transmitter is installed on system air hose.
Its further technical characteristic are as follows: the deduster air inlet valve group and the deduster air outlet valve group are truncated
Valve and by-passing valve.
Its further technical characteristic are as follows: the release flue also successively installs second temperature transmitter, flue gas contains
O2Amount determining device and flue gas contain H2Amount determining device.
Its further technical characteristic are as follows: between the pipeline and release flue of the first outlet of the nitrogen heater
Compressed nitrogen emergency injection apparatus is installed.
Its further technical characteristic are as follows: ash is delivered to grey library using positive pressure by the Pneumatic ash conveying sending device.
Its further technical characteristic are as follows: the minimum discharge purified treatment system of dry method dust release flue gas of the converter
System is controlled by automatic control device.
Beneficial effects of the present invention are as follows:
1, release stage, that is, smoke stack emission dust concentration is maintained at 2mg/Nm for a long time3~5mg/Nm3Minimum discharge it is dense
Degree.
2, the dust pelletizing system for increasing pulsed jet cloth filter newly can be shared with former dry method system gas cooler water system, be not necessarily to
It is newly-built.Improvement cost is saved, while not increasing water consumption, power savings are significant.
3, the characteristics of compressed nitrogen device using nitrogen is inert gas controls and reduces carbon monoxide, the oxygen in flue gas
The volume ratio of gas and hydrogen, keeps it under explosion limit, achievees the purpose that high temperature resistant, explosion-proof.
Detailed description of the invention
Fig. 1 is schematic diagram of the invention.
Fig. 2 is the enlarged diagram of Pneumatic ash conveying sending device in Fig. 1.
In figure: 1, devaporizer；2, electrostatic precipitator；3, the first blower；4, switching station；5, gas cooler；6, hot
Exchanger；7, pulsed jet cloth filter；8, the second blower；9, diffusing chimney；10, nitrogen heater；11, Pneumatic ash conveying sends dress
It sets；12, flue is diffused；13, the first air hose；14, the second air hose；15, tracing thermal-insulating device；16, the first explosion venting valve；17,
Deduster air inlet valve group；18, deduster air outlet valve group；19, hot wind internal circulation system air hose；20, the first temperature transmitter；
21, second temperature transmitter；22, flue gas contains O2Amount determining device；23, flue gas contains H2Amount determining device；24, compressed nitrogen is met an urgent need
Injection apparatus；25, the second explosion venting valve；26, inlet valve；27, intake valve；28, exhaust valve；29, outlet valve.
Specific embodiment
With reference to the accompanying drawing, illustrate the specific embodiment of the present embodiment.
Fig. 1 is schematic diagram of the invention.As shown in Figure 1, a kind of minimum discharge of dry method dust release flue gas of converter
Cleaning treatment system, including devaporizer 1, electrostatic precipitator 2, the first blower 3, switching station 4, gas cooler 5, heat exchange
Device 6, pulsed jet cloth filter 7, the second blower 8, diffusing chimney 9, nitrogen heater 10 and pneumatic transporting ash sending device 11.Converter
The minimum discharge cleaning treatment system of dry method dust release flue gas is controlled by automatic control device.
It is linked together between the outlet of devaporizer 1 and the entrance of electrostatic precipitator 2 by gas piping.Electrostatic removes
It is linked together between the outlet of dirt device 2 and the entrance of the first blower 3 by gas piping.The outlet and switching of first blower 3
Stand 4 entrance between linked together by gas piping.Between the first outlet of switching station 4 and the entrance of gas cooler 5
It links together.
Devaporizer 1 is made of 15CrMo or 20g material in the present embodiment.Devaporizer 1 includes cabinet, condensation
Coil pipe and heat exchanger fin, be using coil pipe outside spray water section evaporation when absorption coil in high temperature liquid refrigerant heat and make
Refrigerant in pipe is gradually cooled to a kind of equipment of liquid by gaseous state.Electrostatic precipitator 2 includes shell, cathod system and sun
Electrode systems.The electric field quantity of electrostatic precipitator 2 is three.Electrostatic precipitator 2 ionizes flue gas using high voltage electric field, air-flow
In dust charged separated under electric field action with air-flow, achieve the purpose that dedusting.
First blower 3 conveys flue gas using axial flow blower, makes flue gas directly by being delivered to switching station 4.First blower 3 is adopted
It, can be according to different operation operating condition regulating system exhausting amounts with frequency converter timing.Preferably, the total pressure of the first blower 3 is
8200Pa, power of motor 1000kw, maximum (top) speed 2100r.m.p.
The working principle of gas cooler 5 is direct cooling, i.e., heating gas is entered by the lower part of gas cooler 5, cooling
Coal gas afterwards is left by the top of gas cooler 5.Gas cooler 5 is the water supply of cooling water between the requirement water treatment vehicle
Temperature is 35 DEG C ± 3 DEG C, and cooling water drainage coolant-temperature gage is 65 DEG C ± 3 DEG C, solid content 0.2g/l in draining.
Switching station 4 includes recovery cup valve, release cup valve and hydraulic device.Hydraulic device is used for the recovery cup valve of switching station 4
With the driving of release cup valve, it can be realized flue gas and be quickly converted and from what release operation was operated to coal-gas recovering without pressure wave
It is dynamic.
Deduster air inlet valve group 17 is arranged in the dust and gas inlet of pulsed jet cloth filter 7.Pulsed jet cloth filter 7 it is net
Deduster air outlet valve group 18 is arranged in gas outlet.Deduster air inlet valve group 17, heat exchanger 6, the second blower 8 and deduster
Hot wind internal circulation system air hose 19 is passed sequentially through between air outlet valve group 18 to link together.Preferably, the second blower 8 follows for heat
Ring blower.First temperature is installed on hot wind internal circulation system air hose 19 between deduster air inlet valve group 17 and heat exchanger 6
Transmitter 20.Deduster air inlet valve group 17 and the equal block valve of deduster air outlet valve group 18 and by-passing valve in the present embodiment.If
Set block valve and by-passing valve be in order not to allow the flue gas of high temperature enter cold conditions 7 inside of pulsed jet cloth filter when flue gas cool-down
Moisture condensation.First temperature transmitter 20 includes thermocouple and thermal resistance, and it is defeated temperature variable can be converted to transmittable standardization
The instrument of signal out.
Connected between the second outlet of switching station 4 and the dust and gas entrance of pulsed jet cloth filter 7 by release flue 12
It is connected together.The net gas of pulsed jet cloth filter 7, which is exported, to be connected between the injection entrance of diffusing chimney 9 by the first air hose 13
Together.Diffusing chimney 9 is monomer chimney, is furnished with venturi-type eductors, is furnished with igniter on top, puts for coal gas ignition
It dissipates.
Pneumatic ash conveying sending device 11 is installed below the ash discharging hole of pulsed jet cloth filter 7.The first of nitrogen heater 10
The pipeline of outlet is connected with release flue 12.The pipeline of the first outlet of nitrogen heater 10 and release flue 12 it
Between installation compressed nitrogen meet an urgent need injection apparatus 24.Nitrogen is inert gas, reduces flue gas in the way of incorporation inert gas
In carbon monoxide, oxygen and hydrogen volume ratio, make its be no more than explosion limit value.The second outlet of nitrogen heater 10 with
It is linked together between the blowing entrance of pulsed jet cloth filter 7 by the second air hose 14.In accident, venturi injection
Device flue gas in system can be all discharged by nitrogen injection.Also, the second outlet and Pneumatic ash conveying of nitrogen heater 10
Sending device 11 is connected.Ash is delivered to grey library using positive pressure by Pneumatic ash conveying sending device 11.
Fig. 2 is the enlarged diagram of Pneumatic ash conveying sending device in Fig. 1.As shown in Fig. 2, Pneumatic ash conveying sending device 11 wraps
Include inlet valve 26, intake valve 27, exhaust valve 28 and outlet valve 29.To grey library delivery phase, inlet valve 26 and exhaust valve 28 are closed,
Open intake valve 27 and outlet valve 29.
Diffuse the flue gas pipeline section that the especially one section of U-bend of setting of flue 12 is rolled over.Tracing thermal-insulating is installed in this flue gas pipeline section
Device 15 and the first explosion venting valve 16.Tracing thermal-insulating device 15 is resistance heating wire in the present embodiment, is wound in this fume pipe section.
First explosion venting valve 16 is mounted at the closure of the flue gas pipeline section of U-bend folding.Release flue 12 also successively installs second temperature
Transmitter 21, flue gas contain O2Amount determining device 22 and flue gas contain H2Amount determining device 23.Second temperature transmitter 21 in the present embodiment
Including thermocouple and thermal resistance, temperature variable can be converted to the instrument of transmittable normalization output signal.Flue gas contains O2
Amount determining device 22 can carry out analysis oxygen content to diffuse in flue 12 using the insertion of the instrument of zirconium oxide material.Flue gas
Containing H2Amount determining device 23 is flue gas analyzer, and flue gas contains H2It is analyzed in the insertion release flue 12 of amount determining device 23
Hydrogeneous tolerance.Flue gas analyzer is that measurement is continuously analyzed using electrochemical sensor containing H2Amount.
Use principle of the invention is as follows:
A kind of minimum discharge cleaning treatment system of dry method dust release flue gas of converter includes reclaimer operation and release
Operate two working stages.
The working stage of reclaimer operation is specific as follows: taking out the flue gas come by gasification cooling flue from converter and cools down from evaporation
The entrance of device 1 enters, and the inlet flue-gas temperature of devaporizer 1 is 800 DEG C~1000 DEG C, and flue gas passes through devaporizer 1
It is quenched to carry out cooling, rough dedusting, humidification, the exit flue-gas temperature of devaporizer 1 is 300 DEG C~400 DEG C.Then, flue gas
Into electrostatic precipitator 2, electrostatic precipitator 2 ionizes flue gas using high voltage electric field, and the dust charged in air-flow is in electric field
Effect is lower to be separated with air-flow, achievees the purpose that dedusting.Flue gas passes through the cooling of devaporizer 1 and the purification of electrostatic precipitator 2,
The fume amount of flue gas is down to 15mg/Nm3.First blower 3 is quick by the flue gas after separation, is fed directly to switching station 4.Switching station
Fume amount is less than or equal to 5mg/Nm by 43Qualified flue gas be delivered to gas cooler 5.Gas cooler 5 is removed to from electrostatic
The flue gas of dirt device 2 carries out washing cooling, and by water-spraying control, flue gas cool-down is to entering gas chamber after≤70 DEG C.
In the dust removal process of electrostatic precipitator 2, there are two the limit of flue gas explosion is usual: first is that the volume of carbon monoxide
Content is greater than 9%, and oxygen content is greater than 6%；Second is that hydrogen volume content is greater than 3%, and oxygen content is greater than 4%.When
Ingredient in flue gas has been more than explosion limit, will be exploded by the arc ignition in electric field, expand gas volume rapidly,
Once venting of dust explosion phenomenon will occur more than the pressure set points of the first explosion venting valve 16 or the second explosion venting valve 25 itself.If venting of dust explosion
Phenomenon is serious, will cause the damage of equipment in dust pelletizing system.Therefore setting flue gas contains O2Amount determining device 22 and flue gas contain H2It measures
Determine device 23 and detect oxygen content and hydrogen content, compressed nitrogen emergency injection apparatus 24 is introduced from nitrogen heater 10 from initial
The characteristics of nitrogen of air themperature required for temperature is heated to using nitrogen is inert gas controls and reduces in flue gas
The volume ratio of carbon monoxide, oxygen and hydrogen, keeps it under explosion limit, achievees the purpose that explosion-proof.
The working stage for diffusing operation is specific as follows: fume amount is higher than 15mg/Nm by switching station 43, do not meet discharge standard
Flue gas be delivered to pulsed jet cloth filter 7 further purify.Specifically, the temperature of the first temperature transmitter 20 detection flue gas,
The block valve of deduster air inlet valve group 17 and the block valve of deduster air outlet valve group 18 are closed, deduster air inlet valve is opened
The by-passing valve of group 17 and the by-passing valve of deduster air outlet valve group 18, start inside 8 unbalanced pulse bag filter 7 of the second blower
The working condition of thermal cycle heating.When 7 internal temperature of pulsed jet cloth filter rises to certain value, the second blower 8 is closed,
The block valve of deduster air inlet valve group 17 and the block valve of deduster air outlet valve group 18 are opened, deduster air inlet valve is closed
The by-passing valve of group 17 and the by-passing valve of deduster air outlet valve group 18.It is purified by pulsed jet cloth filter 7, reaches discharge standard
And fume amount is greater than 5mg/Nm3And it is less than or equal to 10mg/Nm3Super low concentration flue gas by open deduster air outlet valve group 18
It is delivered to the injection entrance of diffusing chimney 9.Light the gas igniter of diffusing chimney 9, coal gas ignition release.Unbalanced pulse cloth bag
The pulse valve of deduster 7 carries out pulse jetting deashing with compressed nitrogen, cuts off deduster air inlet valve group 17 and deduster outlet air
Mouthful 18 shut-in time of valve group is enough to ensure that the ash of the dust settling removed from filter bag after blowing to pulsed jet cloth filter 7
Bucket.Pneumatic ash conveying sending device 11 closes inlet valve 26 and exhaust valve 28 using compressed nitrogen as pumped (conveying) medium, opens intake valve 27
With outlet valve 29, the flying dust in the ash bucket of pulsed jet cloth filter 7 is piped to grey library.
Above description is explanation of the invention, is not intended to limit the invention, and limited range of the present invention is referring to right
It is required that the present invention can make any type of modification without prejudice to basic structure of the invention.
Claims (8)
1. a kind of minimum discharge cleaning treatment system of dry method dust release flue gas of converter, it is characterised in that: including evaporation
Cooler (1), electrostatic precipitator (2), the first blower (3), switching station (4), gas cooler (5), heat exchanger (6), pulse
Bag filter (7), the second blower (8), diffusing chimney (9), nitrogen heater (10) and pneumatic transporting ash sending device (11)；It steams
It sends out and is linked together between the outlet of cooler (1) and the entrance of electrostatic precipitator (2) by gas piping；Electrostatic precipitator
(2) it is linked together between the entrance of outlet and the first blower (3) by gas piping；The outlet of first blower (3) with cut
It changes between the entrance of station (4) and is linked together by gas piping；The first outlet of switching station (4) and gas cooler (5)
It links together between entrance；Deduster air inlet valve group (17) are arranged in the dust and gas inlet of pulsed jet cloth filter (7)；Pulse
Deduster air outlet valve group (18) are arranged in the net gas outlet of bag filter (7)；Deduster air inlet valve group (17), heat exchange
Hot wind internal circulation system air hose (19) connection is passed sequentially through between device (6), the second blower (8) and deduster air outlet valve group (18)
Together；Pass through release flue between the second outlet of switching station (4) and the dust and gas entrance of pulsed jet cloth filter (7)
(12) it links together；The net gas of pulsed jet cloth filter (7) is exported passes through first between the injection entrance of diffusing chimney (9)
Air hose (13) links together；Pneumatic ash conveying sending device (11) are installed below the ash discharging hole of pulsed jet cloth filter (7)；Nitrogen
The pipeline of the first outlet of heater (10) is connected with release flue (12)；The second outlet and arteries and veins of nitrogen heater (10)
It rushes between the blowing entrance of bag filter (7) and is linked together by the second air hose (14)；Also, nitrogen heater (10)
Second outlet is connected with Pneumatic ash conveying sending device (11)；Diffuse flue (12) installation tracing thermal-insulating device (15) and first
Explosion venting valve (16).
2. the minimum discharge cleaning treatment system of dry method dust release flue gas of converter according to claim 1, special
Sign is: installing the second explosion venting valve (25) on the cabinet of the pulsed jet cloth filter (7).
3. the minimum discharge cleaning treatment system of dry method dust release flue gas of converter according to claim 1, special
Sign is: pacifying on the hot wind internal circulation system air hose (19) between the deduster air inlet valve group (17) and heat exchanger (6)
Fill the first temperature transmitter (20).
4. the minimum discharge cleaning treatment system of dry method dust release flue gas of converter according to claim 1, special
Sign is: the deduster air inlet valve group (17) and the deduster air outlet valve group (18) are including block valve and bypass
Valve.
5. the minimum discharge cleaning treatment system of dry method dust release flue gas of converter according to claim 1, special
Sign is: the release flue (12) also successively installs second temperature transmitter (21), flue gas contains O2Amount determining device
(22) and flue gas contains H2Amount determining device (23).
6. the minimum discharge cleaning treatment system of dry method dust release flue gas of converter according to claim 1, special
Sign is: installation compressed nitrogen is answered between the pipeline and release flue (12) of the first outlet of the nitrogen heater (10)
Anxious injection apparatus (24).
7. the minimum discharge cleaning treatment system of dry method dust release flue gas of converter according to claim 1, special
Sign is: ash is delivered to grey library using positive pressure by the Pneumatic ash conveying sending device (11).
8. the minimum discharge cleaning treatment system of dry method dust release flue gas of converter according to claim 1, special
Sign is: the minimum discharge cleaning treatment system of dry method dust release flue gas of the converter passes through automatic control device control
System.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910104322.3A CN109913614B (en) | 2019-02-01 | 2019-02-01 | Ultralow emission purifying treatment system for converter primary dry dedusting and diffusing flue gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910104322.3A CN109913614B (en) | 2019-02-01 | 2019-02-01 | Ultralow emission purifying treatment system for converter primary dry dedusting and diffusing flue gas |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109913614A true CN109913614A (en) | 2019-06-21 |
| CN109913614B CN109913614B (en) | 2023-11-07 |
Family
ID=66961338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910104322.3A Active CN109913614B (en) | 2019-02-01 | 2019-02-01 | Ultralow emission purifying treatment system for converter primary dry dedusting and diffusing flue gas |
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| CN (1) | CN109913614B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110184409A (en) * | 2019-07-18 | 2019-08-30 | 无锡红旗除尘设备有限公司 | The dry method electricity bag that plume is eliminated in flue gas minimum discharge of converter combines dust pelletizing system |
| CN110184410A (en) * | 2019-07-18 | 2019-08-30 | 无锡红旗除尘设备有限公司 | Flue gas minimum discharge of converter and the dry-dedusting system for eliminating plume |
| CN110184411A (en) * | 2019-07-18 | 2019-08-30 | 无锡红旗除尘设备有限公司 | The full dry cloth-bag dusting system of the energy-efficient ultra-clean discharge of flue gas of converter |
| CN112957840A (en) * | 2021-01-26 | 2021-06-15 | 日照钢铁控股集团有限公司 | Method for realizing ultralow discharge of 120-ton converter by LT + metal filter bag dust remover and system used for method |
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| CN110184409A (en) * | 2019-07-18 | 2019-08-30 | 无锡红旗除尘设备有限公司 | The dry method electricity bag that plume is eliminated in flue gas minimum discharge of converter combines dust pelletizing system |
| CN110184410A (en) * | 2019-07-18 | 2019-08-30 | 无锡红旗除尘设备有限公司 | Flue gas minimum discharge of converter and the dry-dedusting system for eliminating plume |
| CN110184411A (en) * | 2019-07-18 | 2019-08-30 | 无锡红旗除尘设备有限公司 | The full dry cloth-bag dusting system of the energy-efficient ultra-clean discharge of flue gas of converter |
| CN110184409B (en) * | 2019-07-18 | 2023-12-05 | 无锡红旗除尘设备有限公司 | Dry-method electric bag combined dust removal system for eliminating smoke plume by ultralow emission of primary flue gas of converter |
| CN110184410B (en) * | 2019-07-18 | 2023-12-05 | 无锡红旗除尘设备有限公司 | Dry dust removal system for ultralow emission of primary flue gas and smoke plume elimination of converter |
| CN110184411B (en) * | 2019-07-18 | 2023-12-05 | 无锡红旗除尘设备有限公司 | Full-dry dedusting system for converter primary flue gas high-efficiency energy-saving ultra-clean emission |
| CN112957840A (en) * | 2021-01-26 | 2021-06-15 | 日照钢铁控股集团有限公司 | Method for realizing ultralow discharge of 120-ton converter by LT + metal filter bag dust remover and system used for method |
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