CN203754745U - Blast furnace coal gas gravity dust collector with cooling effect - Google Patents
Blast furnace coal gas gravity dust collector with cooling effect Download PDFInfo
- Publication number
- CN203754745U CN203754745U CN201420095105.5U CN201420095105U CN203754745U CN 203754745 U CN203754745 U CN 203754745U CN 201420095105 U CN201420095105 U CN 201420095105U CN 203754745 U CN203754745 U CN 203754745U
- Authority
- CN
- China
- Prior art keywords
- cooling water
- blast furnace
- cylindrical shell
- gas
- dust collector
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000000428 dust Substances 0.000 title claims abstract description 51
- 230000000694 effects Effects 0.000 title claims abstract description 26
- 230000005484 gravity Effects 0.000 title claims abstract description 21
- 239000003034 coal gas Substances 0.000 title claims abstract description 20
- 238000001816 cooling Methods 0.000 title claims abstract description 20
- 239000000498 cooling water Substances 0.000 claims abstract description 40
- 239000007921 spray Substances 0.000 claims abstract description 20
- 239000010881 fly ash Substances 0.000 claims description 34
- 210000003101 oviduct Anatomy 0.000 claims description 14
- 238000007599 discharging Methods 0.000 claims description 7
- 239000012530 fluid Substances 0.000 claims description 4
- 239000003973 paint Substances 0.000 claims description 4
- 238000005507 spraying Methods 0.000 abstract description 4
- 239000000571 coke Substances 0.000 abstract 3
- 238000001035 drying Methods 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 238000004064 recycling Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 16
- 230000002349 favourable effect Effects 0.000 description 5
- 239000002956 ash Substances 0.000 description 4
- 238000004062 sedimentation Methods 0.000 description 4
- 239000000446 fuel Substances 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 238000000889 atomisation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000011068 loading method Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000012716 precipitator Substances 0.000 description 2
- 239000004071 soot Substances 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 239000003082 abrasive agent Substances 0.000 description 1
- 239000003818 cinder Substances 0.000 description 1
- 239000011362 coarse particle Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Blast Furnaces (AREA)
Abstract
The utility model provides a blast furnace coal gas gravity dust collector with a cooling effect. The blast furnace coal gas gravity dust collector comprises a raw coke oven gas inlet tube, a dust collector barrel body, a central horn tube, a half-cleaned coal gas outlet tube and a plurality of cooling water spray nozzles, wherein the raw coke oven gas inlet tube is arranged at the upper end of the dust collector barrel body; the half-cleaned coal gas outlet tube is arranged at the lower end of the dust collector barrel body; the central horn tube is connected with the raw coke oven gas inlet tube and arranged in the dust collector barrel body; the cooling water spray nozzles are arranged between the dust collector barrel body and the central horn tube; a spraying direction of the cooling water spray nozzles is vertically downward, and reverse to the coal gas gas-flow direction in the dust collector barrel body. The cooling water spray nozzles are arranged between the dust collector barrel body and the central horn tube, the spraying direction of the cooling water spray nozzles is vertically downward and reverse to the coal gas gas-flow direction in the dust collector barrel body, so that a heat exchange effect between liquid drops and the coal gas is facilitated, and therefore, a temperature of the coal gas at an inlet of a follow-up dry-process bag dust collecting system is lowered within a proper range, and normal recycling work of the blast furnace coal gas is guaranteed.
Description
Technical field
The utility model relates to a kind of gas gravity dust arrester for blast furnace, relates in particular to a kind of gas gravity dust arrester for blast furnace with cooling effect, belongs to metallurgical ironmaking or energy environment protection technical field.
Background technology
At present, blast furnace gas purification recovery process is: dust-laden raw gas first enters the dedusting of dry-method bag-type dust collecting device essence after the thick dedusting of gravitational precipitator again, send TRT device to generate electricity after making blast furnace gas dust content drop to 5～10mg/m3.Novel blast-furnace iron-smelting process adopts former, fuel hot-loading and hot-conveying technique, and to utilize, blast furnace ironmaking is former, the sensible heat of fuel, and reaching effective save energy, minimizing CO2 and PM2.5 discharge is the object of environmental protection.
Blast furnace ironmaking adopts after former, fuel hot-loading and hot-conveying technique, blast furnace roof temperature of exit gas will reach 400～700 DEG C, and the filter bag of dry-method bag-type dust collecting tolerance gas temperature is no more than 280 DEG C, therefore for ensureing the normal work of dry-method bag-type dust collecting system, must make the gas temperature before dry-method bag-type dust collecting drop in suitable scope.Therefore be necessary to design a kind of new gas gravity dust arrester for blast furnace with cooling effect, to overcome the problems referred to above.
Utility model content
The purpose of this utility model is to overcome the defect of prior art; a kind of gas gravity dust arrester for blast furnace with cooling effect is provided; follow-up dry-method bag-type dust collecting system entry gas temperature is dropped in proper range, ensure the normal recovery operation of blast furnace gas.
The utility model is achieved in that
The utility model provides a kind of gas gravity dust arrester for blast furnace with cooling effect, comprise raw gas inlet tube, fly-ash separator cylindrical shell, center oviduct, half purified gas outlet pipe and multiple cooling water nozzle, described raw gas inlet tube is located at the upper end of described fly-ash separator cylindrical shell, described half purified gas outlet pipe is located at the lower end of described fly-ash separator cylindrical shell, described center oviduct connects described raw gas inlet tube, and is positioned at described fly-ash separator cylindrical shell; Described cooling water nozzle is located between described fly-ash separator cylindrical shell and described center oviduct, and the spray direction of described cooling water nozzle is for straight down, with the reverse setting of coal gas air flow line in described fly-ash separator cylindrical shell; Also comprise a cinder-discharging port, described cinder-discharging port is located on described fly-ash separator cylindrical shell, and is positioned at the top of described cooling water nozzle.
Further, described cooling water nozzle is evenly arranged in the hoop direction of described fly-ash separator cylindrical shell.
Further, the quantity of described cooling water nozzle is 6 to 20.
Further, connect a supporting rod on described cooling water nozzle, described supporting rod is fixed on described fly-ash separator cylindrical shell.
Further, the surface of described cooling water nozzle and described supporting rod all scribbles wear-resistant paint.
Further, described cooling water nozzle adopts efficient two-fluid spray nozzle, and its atomizing droplet diameter is not more than 450 μ m.
Further, less one end of described center oviduct connects described raw gas inlet tube, and larger one end is positioned at described fly-ash separator cylindrical shell.
The utlity model has following beneficial effect:
Described cooling water nozzle is located between described fly-ash separator cylindrical shell and described center oviduct, the spray direction of described cooling water nozzle is for straight down, with the reverse setting of coal gas air flow line, heat transfer effect between favourable drop and coal gas, follow-up dry-method bag-type dust collecting system entry gas temperature is dropped in proper range, ensure the normal recovery operation of blast furnace gas; And the sedimentation direction of drop spray direction and soot particle is in the same way, described in can improving, there is the efficiency of dust collection of the gas gravity dust arrester for blast furnace of cooling effect, the ash amount of follow-up dry-method bag-type dust collecting system is reduced, favourable dry method dust work.
Brief description of the drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The structural representation of the gas gravity dust arrester for blast furnace with cooling effect that Fig. 1 provides for the utility model embodiment;
The structural representation that Fig. 2 arranges for the cooling water nozzle hoop that the utility model embodiment provides.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making all other embodiment that obtain under creative work prerequisite, all belong to the scope of the utility model protection.
As Fig. 1-Fig. 2, the utility model embodiment provides a kind of gas gravity dust arrester for blast furnace with cooling effect, comprises raw gas inlet tube 1, fly-ash separator cylindrical shell 2, center oviduct 3, half purified gas outlet pipe 5 and multiple cooling water nozzle 6.Described raw gas inlet tube 1 is located at the upper end of described fly-ash separator cylindrical shell 2, and described half purified gas outlet pipe 5 is located at the lower end of described fly-ash separator cylindrical shell 2.Less one end of described center oviduct 3 connects described raw gas inlet tube 1, and larger one end is positioned at described fly-ash separator cylindrical shell 2.
As Fig. 1-Fig. 2, and the diameter of described fly-ash separator cylindrical shell 2 and the size of straight section height only need to meet following requirement: guarantee that on the one hand gas speed is no more than 0.5-1.0 meter per second, the coal gas residence time and is not less than 14-15 second; The spray droplet of guaranteeing on the other hand described cooling water nozzle 6 evaporates completely, and the wall that can not wet, can not wet at the end.
As Fig. 1-Fig. 2, described cooling water nozzle 6 is located between described fly-ash separator cylindrical shell 2 and described center oviduct 3, and the spray direction of described cooling water nozzle 6 is for straight down, with the reverse setting of coal gas air flow line.In this preferred embodiment, described cooling water nozzle 6 is evenly arranged in the hoop direction of described fly-ash separator cylindrical shell 2, the quantity of described cooling water nozzle 6 is 6 to 20, thereby has ensured that the whole air ring of spraying area covering, to cross section, reaches the effect of overall uniform decrease in temperature.On described cooling water nozzle 6, connect a supporting rod (illustrating, not label), described supporting rod is fixed on described fly-ash separator cylindrical shell 2, and the surface of described cooling water nozzle 6 and described supporting rod all scribbles wear-resistant paint, prevents that it from being worn and torn by air-flow and dust.In this preferred embodiment, described cooling water nozzle 6 adopts efficient two-fluid spray nozzle, and its atomizing droplet diameter is not more than 450 μ m, can fully ensure the effect of atomization.
As Fig. 1-Fig. 2, described in there is cooling effect gas gravity dust arrester for blast furnace also comprise a cinder-discharging port 4, described cinder-discharging port 4 is located on described fly-ash separator cylindrical shell 2, and is positioned at the top of described cooling water nozzle 6, for passing through through cooled air-flow.
As Fig. 1-Fig. 2; blast furnace dust-laden raw gas is through raw gas inlet tube 1; flow out from described center oviduct 3; enter the large space of described fly-ash separator cylindrical shell 2; then upwards flow out outside described fly-ash separator cylindrical shell 2 through described cinder-discharging port 4; air-flow in this course, produces and expands suddenly, slows down and 180 degree turnovers, makes the numerous and confused sedimentation of coarse particles dust.And described cooling water nozzle 6 is arranged in the space between fly-ash separator cylindrical shell 2 and center oviduct 3, spray droplet and air flow line are reverse on the one hand, greatly increased the heat-transfer effect between drop and air-flow, drop evaporates completely, has reduced the temperature of coal gas, and to make steam in coal gas be undersaturated condition, ensure the normal work of follow-up sack cleaner, filter bag neither can burning bag (gas temperature is too high), and (gas temperature is too low also can not stick with paste bag, vapo(u)rous, has Drop Condensation to separate out).Spray droplet and ash fall opposite direction on the other hand, fine drop also has the effect of trap dust, increase the rate of descent of dust, thereby described in having improved, there is the efficiency of dust collection of the gas gravity dust arrester for blast furnace of cooling effect, the ash amount of follow-up dry-method bag-type dust collecting system is reduced, favourable dry method dust work.
As Fig. 1-Fig. 2, large space top after described cooling water nozzle 6 is arranged on to air-flow and turns back, cinder dirt has obtained effective sedimentation on the one hand, on the other hand gas velocity be reduced to～below 1.0m/s, thereby the erosive wear that makes described cooling water nozzle 6 and supporting rod thereof be subject to air-flow and dust alleviates greatly, only need to adopt better anti-abrasive material or at surface spraying wear-resistant paint.
The utlity model has following beneficial effect: 1, in fly-ash separator inner barrel, efficient double fluid atomization nozzle is set, the complete evaporation endothermic of spray droplet, fast reducing gas temperature, ensures the normal work of follow-up dry-method bag-type dust collecting system.
2, adopt spray evaporation process for cooling, utilize the latent heat of vaporization of water, greatly reduce consumption of cooling-water.
3, drop spray direction and coal gas air flow line are reverse, the heat transfer effect between favourable drop and coal gas; Drop spray direction and soot particle sedimentation direction in the same way, improve the efficiency of dust collection of gravitational precipitator, sack cleaner ash amount are reduced, favourable dry method dust work.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (7)
1. one kind has the gas gravity dust arrester for blast furnace of cooling effect, it is characterized in that, comprise raw gas inlet tube, fly-ash separator cylindrical shell, center oviduct, half purified gas outlet pipe and multiple cooling water nozzle, described raw gas inlet tube is located at the upper end of described fly-ash separator cylindrical shell, described half purified gas outlet pipe is located at the lower end of described fly-ash separator cylindrical shell, described center oviduct connects described raw gas inlet tube, and is positioned at described fly-ash separator cylindrical shell; Described cooling water nozzle is located between described fly-ash separator cylindrical shell and described center oviduct, and the spray direction of described cooling water nozzle is for straight down, with the reverse setting of coal gas air flow line in described fly-ash separator cylindrical shell; Also comprise a cinder-discharging port, described cinder-discharging port is located on described fly-ash separator cylindrical shell, and is positioned at the top of described cooling water nozzle.
2. the gas gravity dust arrester for blast furnace with cooling effect as claimed in claim 1, is characterized in that: described cooling water nozzle is evenly arranged in the hoop direction of described fly-ash separator cylindrical shell.
3. the gas gravity dust arrester for blast furnace with cooling effect as claimed in claim 1 or 2, is characterized in that: the quantity of described cooling water nozzle is 6 to 20.
4. the gas gravity dust arrester for blast furnace with cooling effect as claimed in claim 1 or 2, is characterized in that: on described cooling water nozzle, connect a supporting rod, described supporting rod is fixed on described fly-ash separator cylindrical shell.
5. the gas gravity dust arrester for blast furnace with cooling effect as claimed in claim 4, is characterized in that: the surface of described cooling water nozzle and described supporting rod all scribbles wear-resistant paint.
6. the gas gravity dust arrester for blast furnace with cooling effect as claimed in claim 1, is characterized in that: described cooling water nozzle adopts efficient two-fluid spray nozzle, its atomizing droplet diameter is not more than 450 μ m.
7. the gas gravity dust arrester for blast furnace with cooling effect as claimed in claim 1, is characterized in that: less one end of described center oviduct connects described raw gas inlet tube, and larger one end is positioned at described fly-ash separator cylindrical shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420095105.5U CN203754745U (en) | 2014-03-04 | 2014-03-04 | Blast furnace coal gas gravity dust collector with cooling effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420095105.5U CN203754745U (en) | 2014-03-04 | 2014-03-04 | Blast furnace coal gas gravity dust collector with cooling effect |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203754745U true CN203754745U (en) | 2014-08-06 |
Family
ID=51250044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420095105.5U Expired - Lifetime CN203754745U (en) | 2014-03-04 | 2014-03-04 | Blast furnace coal gas gravity dust collector with cooling effect |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203754745U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103866067A (en) * | 2014-03-04 | 2014-06-18 | 中冶南方工程技术有限公司 | Blast furnace coal gas gravitational dust collector with cooling effect |
| CN106906331A (en) * | 2017-03-30 | 2017-06-30 | 河北华奥节能科技有限公司 | A kind of dry-method dust-removal device and method for reclaiming converter gas waste heat |
-
2014
- 2014-03-04 CN CN201420095105.5U patent/CN203754745U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103866067A (en) * | 2014-03-04 | 2014-06-18 | 中冶南方工程技术有限公司 | Blast furnace coal gas gravitational dust collector with cooling effect |
| CN106906331A (en) * | 2017-03-30 | 2017-06-30 | 河北华奥节能科技有限公司 | A kind of dry-method dust-removal device and method for reclaiming converter gas waste heat |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103866067A (en) | Blast furnace coal gas gravitational dust collector with cooling effect | |
| CN102766706B (en) | Coal gasification system for waste heat of blast furnace slag | |
| CN106964217B (en) | A kind of adjustable continuous filtration system of moving bed stratum granulosum of thickness of filter bed | |
| CN205328788U (en) | Wet flue gas desulfurization of thermal power plant waste water zero release processing system | |
| CN102445085A (en) | High-temperature flue gas and dust dry purification and waste heat recovery process for ore furnace | |
| CN107511009A (en) | A kind of high-temperature dust-containing flue gas moving granular bed purification and residual neat recovering system | |
| CN102302985A (en) | Hybrid gas internal and external duplex-cyclone heat-exchange dust-removal equipment | |
| CN207061912U (en) | A kind of inert carrier fluidized system applied to waste water salt manufacturing | |
| CN107297113B (en) | A kind of recycling of waste gas residual heat and pollutant total system | |
| CN203754745U (en) | Blast furnace coal gas gravity dust collector with cooling effect | |
| CN203782080U (en) | Carbon black production system | |
| CN206168143U (en) | Wet classification dust collector | |
| CN210495757U (en) | Cooling, dedusting and dewatering integrated tower | |
| CN202316145U (en) | Air-cooled type cyclone dust collector | |
| CN208436542U (en) | Sublimed sulfur dust-filtering recyclable device | |
| CN106377961B (en) | A kind of wet classification dust-extraction unit and application | |
| CN105964405A (en) | Device and method for promoting wet-type electrostatic precipitator to remove PM2.5 | |
| CN206666575U (en) | A kind of dry-method dust-removal device for reclaiming converter gas waste heat | |
| CN105062574A (en) | Efficient combined dusty syngas washing dust removal device and method thereof | |
| CN202376875U (en) | Coal-fired flue gas foam dust collection device | |
| CN204958841U (en) | Efficient combination formula dust -laden synthetic gas washing dust collector | |
| CN108465337A (en) | A kind of double vertical channel formula ash-laden gas washing controlling device | |
| CN103611368A (en) | Denitrification hot air dust removal device and method | |
| CN211713030U (en) | Venturi cooling scrubber | |
| CN203777817U (en) | Hot-air dust removing device for denitration |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140806 |
|
| CX01 | Expiry of patent term |