CN208505045U - Semi-closed submerged arc furnace dust pelletizing system - Google Patents
Semi-closed submerged arc furnace dust pelletizing system Download PDFInfo
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- CN208505045U CN208505045U CN201821120704.2U CN201821120704U CN208505045U CN 208505045 U CN208505045 U CN 208505045U CN 201821120704 U CN201821120704 U CN 201821120704U CN 208505045 U CN208505045 U CN 208505045U
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- submerged arc
- arc furnace
- closed submerged
- pelletizing system
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Abstract
The utility model relates to flue gases purification fields, in particular to semi-closed submerged arc furnace dust pelletizing system, including semi-closed submerged arc furnace, smoke temperature reducer, dust-extraction unit；Semi-closed submerged arc furnace is provided with the operation door for adjusting air intake；Smoke temperature reducer, for cooling down to flue gas, air inlet is connect by pipeline with the gas outlet of semi-hermetic thermal mineral furnace；Dust-extraction unit, includes the filter element of temperature-resistant material, which is resistance to≤650 DEG C of filter element；The air inlet of dust-extraction unit is connected by the gas outlet of pipeline and smoke temperature reducer.The aperture of control operation door, makes to enter raw coke oven gas completely burned in the enough furnaces of air capacity in furnace, to reduce smoke yields；Dust-extraction unit with high-temperature resistant filter element is set, avoids flue-gas temperature from increasing the scaling loss for causing filter element suddenly, improves the service life of dust pelletizing system.
Description
Technical field
The utility model relates to flue gases purification fields, in particular to semi-closed submerged arc furnace dust pelletizing system.
Background technique
Semi-closed submerged arc furnace (i.e. low hood furnace) is enclosed fire door with petticoat pipe, only opens up operation door in petticoat pipe side,
Charging system and smoke discharging dust removing system are not subject to strict control, large quantity of air into the air capacity in furnace such as closed submerged furnace
Into in furnace, furnace gas completely burned simultaneously enters flue gas dust collecting system after mixing with air.Select cloth bag to flue gas in traditional handicraft
Purified treatment is carried out, since the material ontology heatproof of cloth bag is low, is needed the flue gas after burning by being mixed into the method for cold air
260 DEG C of cloth bag tolerable temperature are reduced the temperature to hereinafter, just can enter bag-type dust removal system.Flue-gas temperature drop after being mixed into cold air
Low, the exhaust gas volumn into dust pelletizing system increases, and the unstable temperature fluctuation (such as unexpected heating) of flue gas can also destroy dedusting system
System, increases the investment (including dust removal assembly, equipment, occupied area, steel construction etc.) of dust pelletizing system, and operating cost increases.
Utility model content
The purpose of this utility model is to provide a kind of preferable semi-closed submerged arc furnace dust pelletizing systems.
To achieve the goals above, semi-closed submerged arc furnace dust pelletizing system according to the present utility model, which is characterized in that packet
It includes:
Semi-closed submerged arc furnace is provided with the operation door for adjusting air intake；
Smoke temperature reducer, for cooling down to flue gas, air inlet passes through the outlet of pipeline and semi-hermetic thermal mineral furnace
Mouth connection；
Dust-extraction unit, includes the filter element of temperature-resistant material, which is resistance to≤650 DEG C of filter element；Institute
The air inlet for stating dust-extraction unit is connected by the gas outlet of pipeline and smoke temperature reducer.
Dust-extraction unit with high-temperature resistant filter element is set, flue-gas temperature is avoided to increase the burning for causing filter element suddenly
Damage is used cooperatively with the operation door control aperture on semi-closed submerged arc furnace, makes, raising dedusting more safe and reliable to dust pelletizing system
The service life of system.
Be further, above-mentioned filter element be intermetallic compound film, sintering diamond bit filter core, filtering it is stainless
Any one in steel sintered fiber filter felt porous material filter core, sintered metal mesh porous material filter core or any a variety of group
It closes.
It is further that the gas outlet of above-mentioned semi-closed submerged arc furnace is provided with regulating valve, for controlling semi-closed submerged arc furnace
Flue gas output quantity.Setting regulating valve in this way is further to control the exhaust gas volumn being dusted.
It is further that the air inlet of above-mentioned smoke temperature reducer is provided with temperature sensor, which passes through
Control module and smoke temperature reducer, which are formed, to be interlocked.
It is further that the gas outlet of above-mentioned smoke temperature reducer is provided with temperature sensor, which passes through
Control module and smoke temperature reducer, which are formed, to be interlocked.
It is further to be provided with cigarette between the gas outlet of above-mentioned semi-closed submerged arc furnace and the air inlet of smoke temperature reducer
Air-flow meter, for monitoring the flue gas flow of semi-closed submerged arc furnace discharge.
It is further that above-mentioned smoke temperature reducer is inter cooler.Smoke temperature reducer is set before dust-extraction unit, it is cold
Flue-gas temperature is dropped to suitable low temperature (more than flue gas dew point temperature), reduces exhaust gas volumn to the greatest extent by device or waste heat boiler.
It is further that above-mentioned smoke temperature reducer is inter cooler or waste heat boiler.
It is further that above-mentioned filter element is resistance to≤450 DEG C of filter element.
The utility model is described further with reference to the accompanying drawings and detailed description.The utility model is additional
Aspect and advantage will be set forth in part in the description, and partially will become apparent from the description below.Or it is practical by this
Novel practice is recognized.
Detailed description of the invention
The attached drawing for constituting a part of the utility model is used to assist understanding to the utility model, provided in attached drawing
Content and its related explanation can be used for explaining the utility model in the present invention, but is not constituted to the utility model not
Work as restriction.In the accompanying drawings:
Fig. 1 is a kind of schematic diagram of semi-closed submerged arc furnace dust pelletizing system of the utility model；
Fig. 2 is the shutter door front view for illustrating a kind of semi-closed submerged arc furnace dust pelletizing system of the utility model；
Fig. 3 is the vertical view from closing to unlatching for illustrating a kind of semi-closed submerged arc furnace dust pelletizing system of the utility model
Figure；
Marked in the figure: 1- semi-closed submerged arc furnace, 2- smoke temperature reducer, 3- dust-extraction unit, 4- operation door, 5- regulating valve,
6- temperature sensor, 7- flue gas flow meter, 8- control module.
Specific embodiment
Clear, complete explanation is carried out to the utility model with reference to the accompanying drawing.Those of ordinary skill in the art are being based on
The utility model will be realized in the case where these explanations.Before being illustrated in conjunction with attached drawing to the utility model, spy is needed
It is not pointed out that:
The technical solution provided in each section including following the description and technical characteristic in the utility model,
In the case where not conflicting, these technical solutions and technical characteristic be can be combined with each other.
In addition, the embodiments of the present invention being related in following the description are generally only the reality of one branch of the utility model
Example is applied, instead of all the embodiments.Therefore, based on the embodiments of the present invention, those of ordinary skill in the art are not having
Every other embodiment obtained under the premise of creative work is made, the model of the utility model protection all should belong to
It encloses.
About term in the utility model and unit.The specification and claims of the utility model and related part
In term " includes " and its any deformation, it is intended that cover and non-exclusive include.
Such as Fig. 1~3, embodiment one: semi-closed submerged arc furnace dust pelletizing system, comprising:
Semi-closed submerged arc furnace 1 is provided with the operation door 4 for adjusting air intake；Operation door 4 is mounted on semi-hermetic mine
On the petticoat pipe side of hot stove.
Smoke temperature reducer 2, for cooling down to flue gas, air inlet passes through the outlet of pipeline and semi-hermetic thermal mineral furnace
Mouth connection；
Dust-extraction unit 3, includes the filter element of temperature-resistant material, which is intermetallic compound film or sintered gold
Genus polyporus material filter element is resistant to 650 DEG C using the filter element highest of filter material above-mentioned；The air inlet of above-mentioned dust-extraction unit 3 is logical
Piping is connect with the gas outlet of smoke temperature reducer 2.
Operate door 4, control and adjust its aperture, make enter furnace in the enough furnaces of air capacity in raw coke oven gas completely burned i.e.
Can, to reduce smoke yields；Flue-gas temperature is reduced by using smoke temperature reducer 2, without the use of mixing cold air measure,
To reduce into 3 exhaust gas volumn of dust-extraction unit.
The aperture of above-mentioned operation door 4 calculates smelting furnace gas and fires completely according to 1 actual operation parameters of semi-closed submerged arc furnace
The air capacity needed is burnt, the aperture of operation door 4 is controlled according to the air capacity.
The aperture control that dust-extraction unit 3 and the operation door 4 with high-temperature resistant filter element is arranged cooperates, and avoids flue-gas temperature
The scaling loss for causing filter element is increased suddenly, improves the service life of dust pelletizing system.
In use, successively guiding flue gas into smoke temperature reducer from semi-closed submerged arc furnace 1 by blower (not shown)
2, dust-extraction unit 3, dust-extraction unit 3, which is introduced into before flue gas or is introduced into, adjusts above-mentioned operation door 4 in flue gas, controls flue gas output.
Such as Fig. 2,3, such as: operation door 4 here can control motor, motor is by pulley and leads using automatically controlling
Messenger pulls, puts down operation door, traction rope one end attended operation outer side of door, and the other end is connected on machine shaft；Operate door door
L meters long, it is Q (m into the air capacity in semi-closed submerged arc furnace furnace that H meters high, operation door open angle, which is a,3/ h), flow velocity is fixed
Value V (m/s), m are the distance for operating door closed position movable end to open position movable end, and h is the activity of operation door closed position
Hold the shortest distance of open position
Then
× V × 3600 Q=(m × H+L × h)
It is obtained by above formula
Above-mentioned filter element is that intermetallic compound film or sintering diamond bit filter core or filtering stainless steel sintering are fine
Dimension filter felt porous material filter core or sintered metal mesh porous material filter core any one or any a variety of combination.
Above-mentioned smoke temperature reducer 2 is inter cooler or waste heat boiler.Smoke temperature reducer 2 is set before dust-extraction unit 3,
Flue-gas temperature is dropped to suitable low temperature (more than flue gas dew point temperature), reduces exhaust gas volumn to the greatest extent by cooler or waste heat boiler.
Embodiment two: on the basis of example 1, the gas outlet of above-mentioned semi-closed submerged arc furnace 1 is provided with regulating valve 5, uses
In the flue gas output quantity of control semi-closed submerged arc furnace 1, i.e. regulating valve 5 is used cooperatively with operation door 4.
Embodiment three: on the basis of embodiment one or two, the air inlet of above-mentioned smoke temperature reducer 2 is provided with temperature biography
Sensor 6, the temperature sensor 6 are formed by control module 8 and smoke temperature reducer 2 and are interlocked.It can be by default in control module 8
Threshold value, when temperature reaches threshold value, control module 8 controls smoke temperature reducer 2.
Example IV: on the basis of one to three any one of embodiment, the gas outlet of above-mentioned smoke temperature reducer 2 is arranged
There is temperature sensor 6, which is formed by control module 8 and smoke temperature reducer 2 and interlocked.
Embodiment five: on the basis of one to four any one of embodiment, the gas outlet of above-mentioned semi-closed submerged arc furnace 1 and cigarette
Flue gas flow meter 7 is provided between the air inlet of gas cooling device 2, for monitoring the flue gas flow of the discharge of semi-closed submerged arc furnace 1,
With while controlling flue gas flow, real-time monitoring reduces the yield of flue gas to carry out compounding practice with operation door 4.
Embodiment six: on the basis of one to five any one of embodiment, above-mentioned filter element is resistance to≤450 DEG C of filtering
Element, specifically can be using stainless steel sintered fiber filter felt porous material filter core or sintered metal mesh porous material filter core.
It specifically can be the above related content to the utility model to be illustrated.Those of ordinary skill in the art are in base
The utility model will be realized in the case where these explanations.Above content based on the utility model, the common skill in this field
Art personnel every other embodiment obtained without making creative work, all should belong to the utility model
The range of protection.
Claims (9)
1. semi-closed submerged arc furnace dust pelletizing system characterized by comprising
Semi-closed submerged arc furnace (1) is provided with the operation door (4) for adjusting air intake；
Smoke temperature reducer (2), for cooling down to flue gas, air inlet passes through the gas outlet of pipeline and semi-hermetic thermal mineral furnace
Connection；
Dust-extraction unit (3), includes the filter element of temperature-resistant material, which is resistance to≤650 DEG C of filter element；It is described
The air inlet of dust-extraction unit (3) is connect by pipeline with the gas outlet of smoke temperature reducer (2).
2. semi-closed submerged arc furnace dust pelletizing system as described in claim 1, which is characterized in that the filter element is changed between metal
Compound film, sintering diamond bit filter core, filtering stainless steel sintered fiber filter felt porous material filter core, sintered metal mesh are more
Any one in Porous materials filter core or any a variety of combination.
3. semi-closed submerged arc furnace dust pelletizing system as described in claim 1, which is characterized in that the semi-closed submerged arc furnace (1)
Gas outlet is provided with regulating valve (5), for controlling the flue gas output quantity of semi-closed submerged arc furnace (1).
4. semi-closed submerged arc furnace dust pelletizing system as described in claim 1, which is characterized in that the smoke temperature reducer (2)
Air inlet is provided with temperature sensor (6), which is formed by control module (8) and smoke temperature reducer (2)
Interlocking.
5. semi-closed submerged arc furnace dust pelletizing system as described in claim 1, which is characterized in that the smoke temperature reducer (2)
Gas outlet is provided with temperature sensor (6), which is formed by control module (8) and smoke temperature reducer (2)
Interlocking.
6. semi-closed submerged arc furnace dust pelletizing system as described in claim 1, which is characterized in that the smoke temperature reducer (2) is
Inter cooler.
7. semi-closed submerged arc furnace dust pelletizing system as described in claim 1, which is characterized in that the smoke temperature reducer (2) is
Waste heat boiler.
8. semi-closed submerged arc furnace dust pelletizing system as described in claim 1, which is characterized in that the outlet of semi-closed submerged arc furnace (1)
Flue gas flow meter (7) are provided between mouth and the air inlet of smoke temperature reducer (2).
9. semi-closed submerged arc furnace dust pelletizing system as claimed in claim 1 or 8, which is characterized in that the filter element be it is resistance to≤
450 DEG C of filter element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821120704.2U CN208505045U (en) | 2018-07-11 | 2018-07-11 | Semi-closed submerged arc furnace dust pelletizing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821120704.2U CN208505045U (en) | 2018-07-11 | 2018-07-11 | Semi-closed submerged arc furnace dust pelletizing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208505045U true CN208505045U (en) | 2019-02-15 |
Family
ID=65284791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821120704.2U Active CN208505045U (en) | 2018-07-11 | 2018-07-11 | Semi-closed submerged arc furnace dust pelletizing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208505045U (en) |
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2018
- 2018-07-11 CN CN201821120704.2U patent/CN208505045U/en active Active
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