CN208577758U - Coal gas of converter electrostatic precipitator - Google Patents
Coal gas of converter electrostatic precipitator Download PDFInfo
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- CN208577758U CN208577758U CN201821115553.1U CN201821115553U CN208577758U CN 208577758 U CN208577758 U CN 208577758U CN 201821115553 U CN201821115553 U CN 201821115553U CN 208577758 U CN208577758 U CN 208577758U
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- electric field
- electrostatic precipitator
- coal gas
- gas
- converter
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Abstract
The utility model discloses a kind of coal gas of converter electrostatic precipitator, including cylindrical shell and the first electric field, the second electric field, third electric field and the 4th electric field in shell, the explosion venting valve for being connected to explosion venting device is provided on shell, spraying device is provided in front of third electric field, third electric field and the 4th electric field are wet type pole plate, spraying device makes to form water membrane on the pole plate of third electric field and the 4th electric field, the dust for making to be attached to above flows into collecting-tank by the effect of water flow and gravity, does not generate reentrainment of dust.The utility model proposes coal gas of converter electrostatic precipitator, electrostatic precipitator outlet dust content of gas can be reduced, while controlling amount of water sprayed and achieving the purpose that coal gas is cooling, make coal gas that can enter gas chamber without further cooling.
Description
Technical field
The utility model relates to flue gas ash removal technical field more particularly to a kind of coal gas of converter electrostatic precipitator.
Background technique
Converter generates coal gas of converter, main component CO, CO in steelmaking process2、O2、N2With Ar etc., Yi Jiqi
FeO, Fe that body carries2O3、CaO、SiO2Equal dust, total dustiness are 80 ~ 150g/Nm3Must by dedusting can just be subject to benefit
With 80 ~ 120Nm of coal gas of converter of concentration containing CO 60% can be recycled in the one ton of steel that blows3, it is the important secondary energy sources of steel plant.Converter
Dry-method dust removal of coal gas technology all has apparent advantage compared with other dedusting technologies on economical and environmentally friendly: first is that efficiency of dust collection
It is high；Second is that system resistance damage is small, power consumption is reduced；Third is that sludge and sewage disposal system is not present in dry-dedusting system, save
Operating cost.
Currently, converter gas dry-dedusting system using dry electrostatic cleaner (usually there are four electric field be connected in series) as
Refined dedusting device, in actual moving process, due to the periodicity that coal gas of converter is smelted, gas composition and dustiness fluctuation are very big, especially
It is in the frequent discharge breakdown of electric field and during third, the 4th electric field shaking and cleaning, and electrostatic precipitator exports coal gas
Dustiness is easily exceeded.
Utility model content
The main purpose of the utility model is to provide a kind of coal gas of converter electrostatic precipitator, it is intended to reduce electrostatic precipitator
Dust content of gas is exported, while controlling amount of water sprayed and achieving the purpose that coal gas is cooling, makes coal gas that can enter coal without further cooling
Gas holder.
To achieve the above object, the utility model provides a kind of coal gas of converter electrostatic precipitator, including cylindrical shell
And the first electric field, the second electric field, third electric field and the 4th electric field in shell, it is provided on shell and is used for and venting of dust explosion
The explosion venting valve of device connection, spraying device is provided in front of the third electric field, and third electric field and the 4th electric field are wet type pole
Plate, spraying device make to form water membrane on the pole plate of third electric field and the 4th electric field, and the dust for making to be attached to above passes through water
The effect of stream and gravity flows into collecting-tank, does not generate reentrainment of dust.
Preferably, distance is 8-10cm between the pole plate of the 4th electric field.
Preferably, the spraying device uses nitrogen atomization double flowing nozzle.
Preferably, the spraying device carries out Multi-layers distributing according to electrostatic precipitator size, along flow of gas direction court
It is spraying to third electric field.
Preferably, the coal gas of converter electrostatic precipitator includes the control device for controlling spraying device amount of water sprayed, quiet
The arrival end of electric precipitator is equipped with temperature sensor and gas volume monitoring device, temperature sensor and gas volume monitoring device with
Control device electrical connection, according to gas volume and its amount of water sprayed of temperature control spraying device.
The utility model proposes coal gas of converter electrostatic precipitator, third electric field, the 4th electric field are changed to wet electrostatic and removed
Dirt forms water membrane on pole plate of dust remover, and the dust for making to be attached to above is catchmented by the effect inflow of water flow and gravity
Pond does not generate reentrainment of dust, improves the efficiency of dust collection of electrostatic precipitator, consistently achieves the standard of ultra-clean discharge.Meanwhile may be used also
Solution causes whole system to be removed because the fluctuation of coal gas and dust specific resistance causes electric field frequently to puncture with the 4th electric field shaking and cleaning
The problem of dirt efficiency declines.In addition, being sprayed water while guaranteeing electrostatic precipitator efficiency of dust collection and dedusting stability by control
Amount achievees the purpose that coal gas is cooling, makes coal gas that can enter gas chamber without further cooling, can cancel existing converter gas dry method
The gas cooler of dust pelletizing system simplifies system.
Detailed description of the invention
Fig. 1 is the utility model coal gas of converter electrostatic precipitator for the structural representation in converter gas dry-dedusting system
Figure；
Fig. 2 is the structural schematic diagram of the utility model coal gas of converter electrostatic precipitator.
In figure, 8- fine ash storehouse；9- electrostatic precipitator；91- pole plate；92- polar curve；93- explosion venting valve；94- collecting-tank；95-
One water pump；The second water pump of 96-；97- third water pump；98- cooling tower；99- spraying device.
The embodiments will be further described with reference to the accompanying drawings for the realization, functional characteristics and advantage of the utility model aim.
Specific embodiment
It should be appreciated that specific embodiment described herein is only used to explain the utility model, it is not used to limit this
Utility model.
It should be noted that in the description of the present invention, term " transverse direction ", " longitudinal direction ", "upper", "lower", " preceding ",
The orientation or positional relationship of the instructions such as " rear ", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" be based on
Orientation or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, and is not instruction or dark
Show that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as pair
The limitation of the utility model.In addition, term " first ", " second " etc. are used for description purposes only, and it should not be understood as instruction or dark
Show relative importance.
Referring to Figures 1 and 2, in this preferred embodiment, a kind of coal gas of converter electrostatic precipitator, including cylindrical shell with
And the first electric field, the second electric field, third electric field and the 4th electric field in shell, it is provided with for being filled with venting of dust explosion on shell
The explosion venting valve of connection is set, spraying device 99 is provided in front of third electric field, third electric field and the 4th electric field are wet type pole plate, spray
Mist device 99 makes to form water membrane on the pole plate of third electric field and the 4th electric field, make to be attached to dust above by water flow and
The effect of gravity flows into collecting-tank, does not generate reentrainment of dust.
Spraying device 99 can not only realize that dust removes, and it is cooling to be also beneficial to coal gas.Specifically, described in the present embodiment
Distance is 8-10cm between the pole plate of 4th electric field.
This electrostatic precipitator is cylindrical shell, while being additionally provided with explosion venting valve and connecting with explosion venting device, therefore, can
Suitable for coal gas of converter.
Spraying device 99 uses nitrogen atomization double flowing nozzle.Water can be made to be atomized into very little well using high pressure nitrogen
Water droplet, this is conducive to exchange heat between water and coal gas, and the water mist of very little also can make small dust polymerization at big dust particles, thus
Preferably removed with electrostatic precipitator.
Spraying device 99 carries out Multi-layers distributing according to electrostatic precipitator size, along flow of gas direction towards third electric field
It is spraying.
Further, this coal gas of converter electrostatic precipitator further includes filling for controlling the control of 99 amount of water sprayed of spraying device
It sets, the arrival end of electrostatic precipitator is equipped with temperature sensor and gas volume monitoring device, temperature sensor and gas volume monitoring
Device is electrically connected with control device, according to gas volume and its amount of water sprayed of temperature control spraying device 99.
In the present embodiment, by the way that control device is arranged, to realize the automatic control of 99 amount of water sprayed of spraying device.Spraying dress
Gas volume and its temperature dynamic control that 99 amount of water sprayed is generated with converter are set, guarantees that the gas temperature of electrostatic precipitator out exists
75-85℃.It is not spraying when converter does not generate coal gas.
The control method of this coal gas of converter electrostatic precipitator is as follows.
According to the gas volume and temperature of electrostatic precipitator arrival end, the amount of water sprayed of spraying device is controlled, makes the CO in coal gas2
It reacts under the action of water with the CaO in coal gas and generates CaHCO3, to avoid carbonate in pole plate polar curve upper plate knot.
In addition, by the amount of water sprayed of control spraying device to control the gas temperature of electrostatic precipitator outlet end lower than 85
℃.Gas temperature due to entering blower reduces, and can make Fan Energy-saving；Assuming that original 150 DEG C of gas temperature, when cooling to 85
After DEG C, blower can save energy about 15%.
This coal gas of converter electrostatic precipitator has dedusting and cooling effect concurrently.
Gas cooler system (reducing gas cooler) can not only be simplified using above-mentioned control method, it is often more important that
It can guarantee reentrainment of dust does not occur that (when deashing reentrainment of dust occurs for dry type electric field, leads to dry method electrostatic precipitator
Dust content of gas is unstable, whens some operating conditions is not achieved discharge standard and pollutes environment), secondary raise will not occur for Wet type electric field
Dirt can guarantee that coal gas of converter consistently achieves ultra-clean discharge.
The utility model proposes coal gas of converter electrostatic precipitator, third electric field, the 4th electric field are changed to wet electrostatic and removed
Dirt forms water membrane on pole plate of dust remover, and the dust for making to be attached to above is catchmented by the effect inflow of water flow and gravity
Pond does not generate reentrainment of dust, improves the efficiency of dust collection of electrostatic precipitator, consistently achieves the standard of ultra-clean discharge.Meanwhile may be used also
Solution causes whole system to be removed because the fluctuation of coal gas and dust specific resistance causes electric field frequently to puncture with the 4th electric field shaking and cleaning
The problem of dirt efficiency declines.In addition, being sprayed water while guaranteeing electrostatic precipitator efficiency of dust collection and dedusting stability by control
Amount achievees the purpose that coal gas is cooling, makes coal gas that can enter gas chamber without further cooling, can cancel existing converter gas dry method
The gas cooler of dust pelletizing system simplifies system.
The above is only the preferred embodiments of the utility model, and therefore it does not limit the scope of the patent of the utility model, all
Equivalent structure transformation made based on the specification and figures of the utility model, it is relevant to be applied directly or indirectly in other
Technical field is also included in the patent protection scope of the utility model.
Claims (5)
1. a kind of coal gas of converter electrostatic precipitator, the first electric field, the second electricity including cylindrical shell and in shell
, third electric field and the 4th electric field, the explosion venting valve for being connected to explosion venting device is provided on shell, which is characterized in that institute
It states and is provided with spraying device in front of third electric field, third electric field and the 4th electric field are wet type pole plate, and spraying device keeps third electric
Water membrane is formed on the pole plate of field and the 4th electric field, the dust for making to be attached to above flows into collection by the effect of water flow and gravity
Pond does not generate reentrainment of dust.
2. coal gas of converter electrostatic precipitator as described in claim 1, which is characterized in that the spacing of the pole plate of the 4th electric field
From for 8-10cm.
3. coal gas of converter electrostatic precipitator as described in claim 1, which is characterized in that the spraying device uses nitrogen atomization
Double flowing nozzle.
4. coal gas of converter electrostatic precipitator as described in claim 1, which is characterized in that the spraying device is according to electrostatic precipitation
Device size carries out Multi-layers distributing, spraying towards third electric field along flow of gas direction.
5. the coal gas of converter electrostatic precipitator as described in any one of Claims 1-4, which is characterized in that further include being used for
The control device of spraying device amount of water sprayed is controlled, the arrival end of electrostatic precipitator is equipped with temperature sensor and gas volume monitoring dress
It sets, temperature sensor and gas volume monitoring device are electrically connected with control device, control spraying device according to gas volume and its temperature
Amount of water sprayed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821115553.1U CN208577758U (en) | 2018-07-13 | 2018-07-13 | Coal gas of converter electrostatic precipitator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821115553.1U CN208577758U (en) | 2018-07-13 | 2018-07-13 | Coal gas of converter electrostatic precipitator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208577758U true CN208577758U (en) | 2019-03-05 |
Family
ID=65510492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821115553.1U Expired - Fee Related CN208577758U (en) | 2018-07-13 | 2018-07-13 | Coal gas of converter electrostatic precipitator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208577758U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108531682A (en) * | 2018-07-13 | 2018-09-14 | 武汉工程大学 | Coal gas of converter electrostatic precipitator and its control method |
-
2018
- 2018-07-13 CN CN201821115553.1U patent/CN208577758U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108531682A (en) * | 2018-07-13 | 2018-09-14 | 武汉工程大学 | Coal gas of converter electrostatic precipitator and its control method |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190305 Termination date: 20210713 |