CN206580848U - Energy-saving gravitational precipitator - Google Patents
Energy-saving gravitational precipitator Download PDFInfo
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- CN206580848U CN206580848U CN201720186623.1U CN201720186623U CN206580848U CN 206580848 U CN206580848 U CN 206580848U CN 201720186623 U CN201720186623 U CN 201720186623U CN 206580848 U CN206580848 U CN 206580848U
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- Prior art keywords
- dedusting cabin
- saving
- energy
- oviduct
- heat exchange
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The utility model discloses a kind of energy-saving gravitational precipitator, the problem of heat of coal gas of high temperature can not being reclaimed mainly for existing deduster, propose a kind of energy-saving gravitational precipitator for being capable of gas recovery heat, including dedusting cabin, an oviduct is provided with the dedusting cabin, the top of the dedusting cabin is passed at the top of the oviduct and with being tightly connected at the top of the dedusting cabin, the miner diameter end of the oviduct is upward；The top of the dedusting cabin is provided with a gas outlet；On the oviduct or the inner surface setting of the dedusting cabin has heat exchange pipeline, the heat exchange pipeline includes a C-shaped pipes or at least one circle helical pipe, and the inlet and outlet of the heat exchange pipeline passes the side wall of the dedusting cabin and is tightly connected with the side wall of the dedusting cabin.The utility model is not on the premise of dust removing effects are influenceed, additionally it is possible to the heat of gas recovery, realizes energy-saving.
Description
Technical field
The utility model is related to a kind of energy-saving gravitational precipitator.
Background technology
Gravitational precipitator is that modern blast furnace smelts iron one of indispensable facility, and its major function is the famine produced to blast furnace
Coal gas carries out rough dusting, that is, removes the dust of bulky grain in raw coke oven gas, is dry-method bag-type dust collecting or wet method in subsequent technique
Dedusting lightens the load.The raw coke oven gas of high-speed and high-temperature is entered after deduster by changing gas piping, and its speed progressively slows down, until entering
Enter in gravitational precipitator cylinder, the design current velocity ＜ 1.0m/s under its operating mode, now, the bulky grain dust in raw coke oven gas will be certainly
Under body Action of Gravity Field, overcome raw coke oven gas rise resistance and under drop down onto the bottom ash bucket of gravitational precipitator, reach the purpose of dedusting.By
This is visible, and the function of traditional gravitational precipitator is single, only removes the bulky grain dust in raw coke oven gas.
At present, the attention with iron and steel enterprise to " energy-saving ", is produced into by " energy-saving " reduction iron and steel enterprise
This turns into the emphasis technological transformation direction of iron and steel enterprise, to accomplish that this point will take measures on customs clearance from source, and gravitational precipitator
If being what is do not had any effect to " energy-saving " as just the single equipment of function, also do not find at present or existing
Multi-functional gravitational precipitator.Meanwhile, each iron and steel enterprise is particularly at the iron and steel enterprise of cold district, because low environment
Temperature, many medium gas (vapour) bodies can not be used directly, it is necessary to heated, or steam tracing or electric tracing etc. are, it is necessary to consume
Certain external fuel or the energy, this " energy-saving " to whole iron and steel enterprise is very unfavorable.
Utility model content
In view of the above-mentioned problems, the utility model provide it is a kind of can utilize deduster in blast furnace gas heat it is energy-saving
Gravitational precipitator.
Set to reach in above-mentioned purpose, the energy-saving gravitational precipitator of the utility model, including dedusting cabin, the dedusting cabin
There is top that the dedusting cabin is passed at the top of an oviduct, the oviduct and with being tightly connected at the top of the dedusting cabin,
The miner diameter end of the oviduct is upward；The top of the dedusting cabin is provided with a gas outlet；
On the oviduct or the inner surface setting of the dedusting cabin has a heat exchange pipeline, the heat exchange pipeline includes a C
Shape pipe or at least one circle helical pipe, the inlet and outlet of the heat exchange pipeline pass the side wall of the dedusting cabin and with it is described
The side wall of dedusting cabin is tightly connected.
Further, the dedusting cabin includes conical section, direct tube section and the back taper section being sequentially connected from top to bottom；It is described
Gas outlet is arranged on the conical section.
Further, it is provided with heat-insulation layer on the inwall of the dedusting cabin.
Further, the heat exchange pipeline overhead height is not higher than the lower edge of the gas outlet, the heat exchange pipeline bottom
Portion is highly not less than the height of the oviduct lower end.
Further, a connecting pipe in parallel with the heat exchange pipeline is provided with the outside of the dedusting cabin, it is described to change
The inlet and outlet of hot channel is respectively arranged with imported valve and outlet valve, the connecting pipe and is provided with a communicating valve
Door.
Further, the top vertical of the dedusting cabin be provided with a coal gas diffusion pipe, the dedusting cabin be provided with to
A few manhole.
Further, the oviduct outlet diameter for the direct tube section diameter 0.55~times.
The advantage that the utility model is protruded is can to make full use of the hot environment inside gravitational precipitator, preheating or heating
Gas (vapour) body medium, reduces the consumption of extra power medium, is one of the measure of " energy-saving ".In addition, for middle overhaul
For blast furnace, the utility model is simple and easy to apply in transformation, and the cycle is short, and cost is low, with very strong operability.
Brief description of the drawings
Fig. 1 is the facade structures schematic diagram of the energy-saving gravitational precipitator embodiment 1 of the utility model；
Fig. 2 is the planar structure schematic diagram of the energy-saving gravitational precipitator embodiment 1 of the utility model；
Fig. 3 is the planar structure schematic diagram of the energy-saving gravitational precipitator embodiment 2 of the utility model.
Embodiment
The utility model is further described with reference to Figure of description.
Embodiment 1
As shown in Figure 1-2, the present embodiment provides a kind of energy-saving gravitational precipitator, and its primary structure includes inside and outside two
Point, wherein：
Described external structure includes steel superstructure cone 1a, middle part steel construction straight barrel 1b and bottom steel construction back taper
Body 1c.
Described steel superstructure cone, is additionally provided with coal gas diffusion pipe thereon, is coal gas diffusion road 5；
Described bottom steel construction reverse taper, its bottom is provided with the discharge port of dedusting ash, and the gravitational dust collection ash in it passes through
It is arranged on ash-discharging device the discharging the gas ash periodically or non-periodically below outlet, it is ensured that the dedusting function of gravitational precipitator
Reliability；
Described bottom steel construction reverse taper, is additionally provided with the temperature detecting point up and down no less than two layers, passes through temperature thereon
Change monitoring gravitational precipitator in dedusting ash position.
Described internal structure includes the loudspeaker section 2 of blast furnace gas entrance, preheated with the guarantor on endless tube 4 and dedusting inwall
Adiabator 3.
The circulating line of described inside pre- hot gas (vapour) body medium, the gas for being preheated or heating (vapour) body medium passes through this
Heat exchange is carried out with the coal gas of high temperature in it during pipeline, the purpose of preheating gas medium is reached, while not influenceing gravitational precipitator
Dedusting function；
Described coal gas enters the loudspeaker section passage of gravity, make the Gas Flow of high speed when entering gravitational precipitator speed by
Decrescence delay, its outlet diameter d set scope for gravitational precipitator barrel diameter Φ 0.55~o.7 times.
The insulation material of described dedusting wall, the hot environment for making the maintenance in gravitational precipitator stable, ensures simultaneously
The temperature of gravitational precipitator outer wall is in lower temperature, is conducive to safety in production.
When blast furnace is normally produced, coal gas of high temperature is filled with gravitational precipitator, and air velocity is slower, operating mode
Under speed it is general in 2m/s (loudspeaker section periphery) below, and the speed following in the outlet of loudspeaker section is then no more than 1m/s, this
Aspect ensure that the dust removing effects of gravitational precipitator, and the high-temperature coal air-flow of another aspect low speed, which is conducive to being located on blast furnace gas, to be gone out
Cryogenic gas medium above mouthful in preheating pipe carries out heat exchange, so as to heat gas (vapour) body in preheating pipe.
In the design, it is necessary to consider residence time t (in Fig. 1 end of loudspeaker section 2 of the blast furnace gas in gravitational dust collection in it
It is blast furnace coal to the ratio of the mean flow rate of coal gas in H1 values and gravitational precipitator between blast furnace gas center line of discharge
Residence time t) of the gas in gravitational precipitator is not less than 15s, on the one hand ensures that the bulky grain dust in blast furnace gas can fill
Divide sedimentation, the opposing party is conducive to the heat exchange of coal gas of high temperature and pre- thermal medium.
For the transformation of middle overhaul, the transformation of gravitational precipitator is fairly simple, and preheating only need to be set up in gravitational precipitator
Endless tube 4, external agency can be connected or being directly welded to connect with the endless tube using flange.
Embodiment 2
On the basis of above-described embodiment, as shown in figure 3, the security to ensure the pre-heating system, the dedusting cabin
Outside is provided with a connecting pipe in parallel with the heat exchange pipeline, the inlet and outlet of the heat exchange pipeline be respectively arranged with into
A connection valve is provided with mouth valve and outlet valve, the connecting pipe.When medium need not be preheated or internal preheating ring
When pipe occurs damaged, the valve 6a and 6b of import and export can be closed immediately, and opens the UNICOM valve 6c of import and export simultaneously, cut off
Pre-heating system, it is ensured that the security of pre-heating system.
Embodiment 3
This implementation and the difference of Examples 1 and 2 are：The heat exchange pipeline of the present embodiment uses helical pipe, also,
The heat exchange pipeline overhead height is not higher than the lower edge of the gas outlet, and the heat exchange pipeline bottom level is not less than the loudspeaker
The height of pipe lower end, rather than the C-shaped pipes road in embodiment 1 and embodiment 2, helical pipe can make heat exchange pipeline and coal gas
Contact area it is bigger, further, it is possible to make heat transferring medium residence time in heat exchange pipeline longer, thus, it is possible to make heat exchange
The heat of Absorption of Medium is more.
Embodiment 4
It is bonded or welds on the basis of above-described embodiment, on the inwall of the oviduct in the present embodiment or riveting has erosion control
Brush protective layer.Due to the air velocity in oviduct quickly, also, in the coal gas in oviduct more particulate matter is contained.When
When coal gas containing more particulate matter is flowed fast through, easily oviduct formation is washed away and causes oviduct to be damaged.This reality
The scour protection layer for connecting and being made by high-abrasive material on the inwall of oviduct in example is applied, oviduct can be effectively protected.
More than, preferred embodiment only of the present utility model, but protection domain of the present utility model is not limited thereto, and appoints
What those familiar with the art the change that can readily occur in or replaces in the technical scope that the utility model is disclosed
Change, should all cover within protection domain of the present utility model.Therefore, protection domain of the present utility model should be with claim
The protection domain defined is defined.
Claims (8)
1. a kind of energy-saving gravitational precipitator, it is characterised in that：Including dedusting cabin, an oviduct is provided with the dedusting cabin,
The top of the dedusting cabin is passed at the top of the oviduct and with being tightly connected at the top of the dedusting cabin, the oviduct
Miner diameter end is upward；The top of the dedusting cabin is provided with a gas outlet；
On the oviduct or the inner surface setting of the dedusting cabin has a heat exchange pipeline, the heat exchange pipeline includes a C-shaped pipes
Or at least one circle helical pipe, the inlet and outlet of the heat exchange pipeline pass the side wall of the dedusting cabin and with the dedusting
The side wall in storehouse is tightly connected.
2. energy-saving gravitational precipitator as claimed in claim 1, it is characterised in that：The dedusting cabin includes successively connecting from top to bottom
Conical section, direct tube section and the back taper section connect；The gas outlet is arranged on the conical section.
3. energy-saving gravitational precipitator as claimed in claim 1, it is characterised in that：Insulation is provided with the inwall of the dedusting cabin
Layer.
4. energy-saving gravitational precipitator as claimed in claim 1, it is characterised in that：The heat exchange pipeline overhead height is not higher than institute
The lower edge of gas outlet is stated, the heat exchange pipeline bottom level is not less than the height of the oviduct lower end.
5. energy-saving gravitational precipitator as claimed in claim 1, it is characterised in that：One and institute are provided with the outside of the dedusting cabin
Heat exchange pipeline connecting pipe in parallel is stated, the inlet and outlet of the heat exchange pipeline is respectively arranged with imported valve and outlet valve
A connection valve is provided with door, the connecting pipe.
6. energy-saving gravitational precipitator as claimed in claim 1, it is characterised in that：The top vertical of the dedusting cabin is provided with one
At least one, which is provided with, on coal gas diffusion pipe, the dedusting cabin enters hole.
7. energy-saving gravitational precipitator as claimed in claim 2, it is characterised in that：The oviduct outlet diameter is the straight tube
The 0.55 of section diameter~times.
8. energy-saving gravitational precipitator as claimed in claim 1, it is characterised in that：Protection against erosion is provided with the inside of the oviduct
Protection sleeve pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720186623.1U CN206580848U (en) | 2017-02-28 | 2017-02-28 | Energy-saving gravitational precipitator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720186623.1U CN206580848U (en) | 2017-02-28 | 2017-02-28 | Energy-saving gravitational precipitator |
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| CN206580848U true CN206580848U (en) | 2017-10-24 |
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ID=60091587
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| CN201720186623.1U Active CN206580848U (en) | 2017-02-28 | 2017-02-28 | Energy-saving gravitational precipitator |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111057587A (en) * | 2020-01-20 | 2020-04-24 | 临沂玫德庚辰金属材料有限公司 | Automatic water-separating dust-settling device for blast furnace gas |
| CN113551534A (en) * | 2021-07-20 | 2021-10-26 | 成都易态科技有限公司 | Air inlet channel, gravity dust remover, pre-dust removing method and dust removing system |
-
2017
- 2017-02-28 CN CN201720186623.1U patent/CN206580848U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111057587A (en) * | 2020-01-20 | 2020-04-24 | 临沂玫德庚辰金属材料有限公司 | Automatic water-separating dust-settling device for blast furnace gas |
| CN113551534A (en) * | 2021-07-20 | 2021-10-26 | 成都易态科技有限公司 | Air inlet channel, gravity dust remover, pre-dust removing method and dust removing system |
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