CN209530417U - A kind of smelting furnace tails dedusting system - Google Patents
A kind of smelting furnace tails dedusting system Download PDFInfo
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- CN209530417U CN209530417U CN201821960007.8U CN201821960007U CN209530417U CN 209530417 U CN209530417 U CN 209530417U CN 201821960007 U CN201821960007 U CN 201821960007U CN 209530417 U CN209530417 U CN 209530417U
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- smelting furnace
- tail gas
- exhaust pipe
- tapping hole
- dedusting system
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Abstract
The utility model discloses a kind of smelting furnace tails dedusting system, including smelting furnace, the smelting furnace includes outlet flue and tapping hole, the outlet flue and tail gas piping connection, the tapping hole is provided with exhaust pipe, the exhaust pipe and tail gas piping connection, the exhaust pipe are equipped with negative-pressure air fan, and the negative-pressure air fan is used in the air sucking exhaust pipe by tapping hole；The offgas duct road is successively arranged primary dust removing equipment and two-stage dust removal equipment.The exhaust pipe for being provided with negative-pressure air fan is arranged in tapping hole, the negative pressure formed using pumping blower will be in the tail gas sucking exhaust pipe of tapping hole, to not to tapping hole be sealed including in the case where most of tail gas is directed in dust-extraction unit, reduce the excessive of untreated tail gas, improves dedusting environment friendly effect.
Description
Technical field
The utility model relates to industrial waste gas process fields, and in particular to a kind of smelting furnace tails dedusting system.
Background technique
In high carbon chromium iron furnace smelting process, the tail gas discharge for carrying a large amount of high-temperature smoke is had.From environmental protection
Angle is set out, and tail gas needs to carry out certain processing before being discharged into the atmosphere, the flue dust of the inside is retained down, to subtract
Few air pollution.
Smelting furnace carries out tapping after completing to smelt other than there is the outlet flue of combustion chamber relatively stable tail gas to generate
When, can also escape a large amount of tail gas from tapping hole, if to tapping hole evolution tail gas without processing, entire dedusting system
The operational effect of system will give a discount.
Problem is, if the tail gas of tapping hole is incorporated in exhaust gas processing device, tapping hole needs to reserve the logical of tapping
Road can not pass through the fully wrapped around flow direction to guide tail gas of housing.
Utility model content
In view of this, the application provides a kind of smelting furnace tails dedusting system, the exhaust pipe for being provided with negative-pressure air fan is set
It sets in tapping hole, is sucked the tail gas of tapping hole in exhaust pipe using the negative pressure that pumping blower is formed, thus not to tapping
Mouth, which is sealed, is directed to most of tail gas in dust-extraction unit including in the case where, reduces the excessive of untreated tail gas, mentions
Dedusting environment friendly effect is risen.
In order to solve the above technical problems, technical solution provided by the utility model is a kind of smelting furnace tails dedusting system,
Including smelting furnace, the smelting furnace includes outlet flue and tapping hole, and the outlet flue and tail gas piping connection, the tapping hole are set
It is equipped with exhaust pipe, the exhaust pipe and tail gas piping connection, the exhaust pipe is equipped with negative-pressure air fan, the negative pressure wind
Machine is used in the air sucking exhaust pipe by tapping hole；The offgas duct road is successively arranged primary dust removing equipment and second level is removed
Dirt equipment.
Preferably, the offgas duct road is additionally provided with cooling tower, and the cooling tower setting is removed in exhaust pipe and level-one
Between dirt equipment.
Preferably, the cooling tower inner disc is provided around cooling line, and the cooling line outer wall is equipped with thermally conductive sheet；Institute
Cooling line is stated equipped with refrigeration machine.
Preferably, the primary dust removing equipment includes the centrifugal chamber of cone, level in the upper portion side wall of the centrifugal chamber
It is provided with air inlet pipe, the centrifugal chamber top is equipped with escape pipe, the axis weight of the escape pipe extending direction and the centrifugal chamber
It closes；The air inlet pipe and an air outlet pipe with tail gas piping connection.
Preferably, the two-stage dust removal equipment is bag filter.
Preferably, speedup blower is provided with before the two-stage dust removal equipment.
Preferably, the primary dust removing equipment and two-stage dust removal equipment pass through dust removal pipeline and are connected with bulk cement storage tank, described
Dust removal pipeline is equipped with conveying fan, is equipped with ash screen in the bulk cement storage tank.
The application compared with prior art, it has the advantage that:
Negative-pressure air fan makes to form negative pressure in exhaust pipe, and the tail gas flue dust of tapping hole is sucked and is oriented to tail gas by exhaust pipe
In pipeline, so that the tail gas of tapping hole has also been carried out collection processing, reduce leaking for untreated tail gas.
Using negative-pressure air fan constantly to exhaust pipe air blast, keep the gas flow rate in exhaust pipe and tail gas pipeline
Constant, in tapping hole tapping, the ingredient of tail gas changes, but the air flow condition in pipeline keeps relative stability, to avoid
Airflow fluctuation, which generates impact vibration and influences cleaner, to run well.
Cooling tower is set before dust-extraction unit, and the dust temperature in tail gas just enters cleaner after obtaining certain decline
In, the component on high-temperature dust damage cleaner is avoided, dust removing effects are influenced.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model smelting furnace tails dedusting system；
Fig. 2 is the structural schematic diagram of the cooling tower of the utility model smelting furnace tails dedusting system；
Fig. 3 is the utility model smelting furnace tails dedusting system and cleaner structural schematic diagram.
Appended drawing reference: smelting furnace 1, outlet flue 11, tapping hole 12, tail gas pipeline 2, exhaust pipe 21, negative-pressure air fan 211,
Cooling tower 3, cooling line 31, thermally conductive sheet 32, refrigeration machine 33, primary dust removing equipment 41, centrifugal chamber 411, air inlet pipe 412, outlet
Pipe 413, two-stage dust removal equipment 42, speedup blower 5, conveying fan 61, dust removal pipeline 62, bulk cement storage tank 63.
Specific embodiment
In order to make those skilled in the art more fully understand the technical solution of the utility model, with reference to the accompanying drawing and have
The utility model is described in further detail for body embodiment.
Referring to FIG. 1, the utility model embodiment provides a kind of smelting furnace tails dedusting system, including smelting furnace 1, smelt
Furnace 1 includes outlet flue 11 and tapping hole 12, and outlet flue 11 is connect with tail gas pipeline 2, and tapping hole 12 is provided with exhaust pipe 21, is taken out
Air pipe 21 is connect with tail gas pipeline 2, and exhaust pipe 21 is equipped with negative-pressure air fan 211, and negative-pressure air fan 211 is used for tapping hole 12
Air sucking exhaust pipe 21 in；Cooling tower 3, primary dust removing equipment 41,5 and of speedup blower are successively arranged on tail gas pipeline 2
Two-stage dust removal equipment 42.
Referring to FIG. 2,3 inner disc of cooling tower is provided around cooling line 31,31 outer wall of cooling line is equipped with thermally conductive sheet 32；
Cooling line 31 is equipped with refrigeration machine 33.
Primary dust removing equipment 41 includes the centrifugal chamber 411 of cone, be horizontally disposed in the upper portion side wall of centrifugal chamber 411 have into
412,411 centrifugal chamber top of tracheae is equipped with escape pipe 413, and 413 extending direction of escape pipe is overlapped with the axis of centrifugal chamber 411；Into
Tracheae 412 and escape pipe 413 are connect with tail gas pipeline 2.Two-stage dust removal equipment 42 is bag filter.Primary dust removing equipment 41
Bulk cement storage tank 63 is connected with by dust removal pipeline 62 with two-stage dust removal equipment 42, dust removal pipeline 62 is equipped with conveying fan 61.
When smelting furnace tails dedusting system provided in this embodiment works, the tail gas pipeline 2 being connected to outlet flue 11 is stablized
Ground exports the flue gas generated in smelting furnace 1.The running of negative-pressure air fan 211 simultaneously makes exhaust pipe 21 constantly converge from tapping hole 12
Collection air is simultaneously transported in tail gas pipeline 2.When tapping hole 12 starts tapping, floated into the gas in exhaust pipe 21
Dust content increases, but total gas flow rate keeps stablizing, therefore will not cause to impact to the follow-up equipment in tail gas pipeline 2.Due to
The exhaust temperature that smelting furnace 1 is discharged is higher, cooling tower 3 is arranged before dust-extraction unit, tail gas cools down, can effectively prevent
Only high temperature, which is divided into, damages filter device.The operation of refrigeration machine 33 makes the refrigerant of low temperature recycle stream in cooling line 31
Dynamic, the thermally conductive sheet 32 being arranged on cooling line 31 is contacted with tail gas pipeline 2.Because having biggish specific surface area, thermally conductive sheet
32 more efficiently can sufficiently dissipate the cooling capacity of refrigerant, carry out heat exchange with tail gas, reduce the temperature of tail gas.
As shown in figure 3, when the tail gas by cooling is entered in the centrifugal chamber 411 of primary dust removing equipment, the gas containing dust
Stream is blown into centrifugal chamber 411 by horizontally disposed air inlet pipe 412, and air-flow switchs under the guidance of 411 conical structure of centrifugal chamber
Circular motion.By gravity while the air-flow of rotation is rotated along 411 side wall of centrifugal chamber, thus twist downwardly toward circle
Bore endwall flow.Dust is rotated with air-flow, is thrown toward cavity wall under the influence of centrifugal force, and dust is once contacted with side wall
Just inertia force is lost, falls and enters in dust removal pipeline 62 along wall surface.The outer rotational gas flow a for rotating decline, during decline constantly
It is shunted to the central part of separator, forms centripetal radial air flow, guidance and gas of this fraction in 411 structure of centrifugal chamber
Under the action of distribution density, is constituted in the shaft core position of cyclone separator 31 and rotate upward inward eddy b.Outer rotational gas flow a and
The direction of rotation of interior rotational airflow b is identical.It is fallen after striking 411 side wall of centrifugal chamber due to a large amount of dust, it is finally only a small amount of
Dust rises with interior rotational airflow b, is discharged in subsequent tail gas pipeline 2 through escape pipe 413.
Dust enters after primary dust removing equipment 41 in the cloth bag separator of two-stage dust removal equipment 42.Exhaust gas flow is in cloth
Between bag-shaped filter fiber detour across when, dust particles because inertia force effect strike fiber collision due to be intercepted, thus under
It falls in dust removal pipeline 62.With the increase of tail gas transport distance, the flow velocity of gas gradually slows down, before two-stage dust removal equipment 42
Speedup blower 5 is set, the flow velocity of tail gas is promoted, so as to avoid dust siltation in tail gas pipeline 2, has ensured the unimpeded stream of tail gas
Out.
Tail gas successively passes through primary dust removing equipment 41 and two-stage dust removal equipment 42, respectively by the biggish dust of particle and particle
Lesser dust is purged, to ensure that the accurate division of labor of each cleaner, improves efficiency of dust collection.From primary dust removing
Equipment 41 and two-stage dust removal equipment 42 filter out the dust to get off and fall in dust removal pipeline 62, and conveying fan 61, setting are removing ash pipe
The conveying fan 61 of 62 end of road dries to dedusting pipeline 62, dust is transported in bulk cement storage tank 63, in the leaching of bulk cement storage tank 63
Under the blocking of net, finally falls and be deposited in bulk cement storage tank 63, the subsequent cleaning being convenient for.
Above are merely preferred embodiments of the utility model, it is noted that above-mentioned preferred embodiment should not regard
For limitations of the present invention, the protection scope of the utility model should be defined by the scope defined by the claims..For
For those skilled in the art, without departing from the spirit and scope of the utility model, it can also make several
Improvements and modifications, these improvements and modifications also should be regarded as the protection scope of the utility model.
Claims (7)
1. a kind of smelting furnace tails dedusting system, including smelting furnace, which is characterized in that the smelting furnace includes outlet flue and tapping
Mouthful, the outlet flue and tail gas piping connection, the tapping hole are provided with exhaust pipe, and the exhaust pipe and tail gas pipeline connect
It connects, the exhaust pipe is equipped with negative-pressure air fan, and the negative-pressure air fan is used in the air sucking exhaust pipe by tapping hole；Institute
It states offgas duct road and is successively arranged primary dust removing equipment and two-stage dust removal equipment.
2. smelting furnace tails dedusting system as described in claim 1, which is characterized in that the offgas duct road is additionally provided with cold
But tower, the cooling tower are arranged between exhaust pipe and primary dust removing equipment.
3. smelting furnace tails dedusting system as claimed in claim 2, which is characterized in that the cooling tower inner disc is provided around cold
But pipeline, the cooling line outer wall are equipped with thermally conductive sheet；The cooling line is equipped with refrigeration machine.
4. smelting furnace tails dedusting system as described in claim 1, which is characterized in that the primary dust removing equipment includes circular cone
The centrifugal chamber of shape, being horizontally disposed in the upper portion side wall of the centrifugal chamber has air inlet pipe, and the centrifugal chamber top is equipped with escape pipe, institute
Escape pipe extending direction is stated to be overlapped with the axis of the centrifugal chamber；The air inlet pipe and an air outlet pipe with tail gas piping connection.
5. smelting furnace tails dedusting system as described in claim 1, which is characterized in that the two-stage dust removal equipment is removed for cloth bag
Dirt device.
6. smelting furnace tails dedusting system as claimed in claim 5, which is characterized in that be provided with before the two-stage dust removal equipment
Speedup blower.
7. smelting furnace tails dedusting system as described in claim 1, which is characterized in that the primary dust removing equipment and second level are removed
Dirt equipment passes through dust removal pipeline and is connected with bulk cement storage tank, and the dust removal pipeline is equipped with conveying fan, is equipped in the bulk cement storage tank
Ash screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821960007.8U CN209530417U (en) | 2018-11-27 | 2018-11-27 | A kind of smelting furnace tails dedusting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821960007.8U CN209530417U (en) | 2018-11-27 | 2018-11-27 | A kind of smelting furnace tails dedusting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209530417U true CN209530417U (en) | 2019-10-25 |
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ID=68262154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821960007.8U Active CN209530417U (en) | 2018-11-27 | 2018-11-27 | A kind of smelting furnace tails dedusting system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114452755A (en) * | 2022-03-03 | 2022-05-10 | 安徽省金鸿再生资源科技有限公司 | Waste gas cooling and dust removing equipment for alloy smelting |
-
2018
- 2018-11-27 CN CN201821960007.8U patent/CN209530417U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114452755A (en) * | 2022-03-03 | 2022-05-10 | 安徽省金鸿再生资源科技有限公司 | Waste gas cooling and dust removing equipment for alloy smelting |
| CN114452755B (en) * | 2022-03-03 | 2023-09-12 | 安徽省金鸿再生资源科技有限公司 | Alloy is smelted and is used waste gas cooling dust collecting equipment |
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