CN207871801U - The dust pelletizing system of the tangential cyclone dust collectors of multi-pipeline and the combination of dry-method bag-type dust collecting device - Google Patents
The dust pelletizing system of the tangential cyclone dust collectors of multi-pipeline and the combination of dry-method bag-type dust collecting device Download PDFInfo
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- CN207871801U CN207871801U CN201721238573.3U CN201721238573U CN207871801U CN 207871801 U CN207871801 U CN 207871801U CN 201721238573 U CN201721238573 U CN 201721238573U CN 207871801 U CN207871801 U CN 207871801U
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Abstract
The utility model is related to the dust pelletizing systems that a kind of tangential cyclone dust collectors of multi-pipeline and dry-method bag-type dust collecting device combine,Include for the tangential cyclone dust collectors of multi-pipeline of primary dedusting and for the dry-method bag-type dust collecting device of final dusting,The tangential cyclone dust collectors of multi-pipeline include cylinder,Cylinder top center is communicated with exhaust pipe,Bottom is collection ash cellar,Exhaust pipe is connected to dry-method bag-type dust collecting device gas feed,Cylinder top is communicated at least three uniformly distributed air inlet pipe,Air inlet pipe is tangent with cylinder outer circle and is connected to blast furnace crude gas outlet,Lower part is equipped with the reflector and reflector coaxial with cylinder in cylinder,Reflector is up-narrow and down-wide cone or cone column combination body,Reflector is wide at the top and narrow at the bottom,Both ends open,The circular cone cover that reflector is surrounded,Annular mortar joint is formed between the conical surface of reflector and the conical surface of reflector,Reflector is fixed along cylinder inboard wall,Reflector is mounted on by support element on reflector or on cylinder.The system dust removing is efficient, simple in structure, does not interfere with arrangement.
Description
Technical field
The utility model belongs to blast furnace crude gas dedusting technology field, and in particular to a kind of tangential cyclone dust collectors of multi-pipeline
With the dust pelletizing system of dry-method bag-type dust collecting device combination.
Background technology
Currently, blast furnace crude gas dedusting mainly passes through primary dedusting equipment and final dusting equipment mechanical and hydraulic combined dust, wherein one
There are mainly three types of schemes for secondary cleaner：1) gravitational precipitator；2) axis stream cyclone dust collectors；3) gravitational precipitator+tangential whirlwind
Deduster.
But scheme 1) efficiency of dust collection it is relatively low, only 40%~50%, easily increase final dusting equipment dedusting pressure
Power reduces working efficiency, will be present in the zinc in little particle and more stayed in gas secondary dust pelletizing system, be unfavorable for zinc
Recovery processing is not easy to recycle Fe, C in dry gas ash；Scheme 2) deflector structure is complicated, installation is inconvenient,
It easily ground away, blow off by the Gas Flow of high speed, often force blast furnace staying；Scheme 3) investment height, it takes up a large area, total figure is arranged
It is more demanding, by investing and Ground arrangement is influenced, is not suitable for the iron-smelter that scale of investment is small, place is limited, changes in blast furnace
It is also only limited to repair existing gravitational precipitator or after gravitational precipitator increase cyclone dust collectors, equipment profit when making
Low with rate, efficiency of dust collection is difficult to be improved or investment is caused to increase.
Utility model content
The purpose of this utility model is to provide a kind of tangential cyclone dust collectors of multi-pipeline and the combination of dry-method bag-type dust collecting device
Dust pelletizing system, the system dust removing is efficient, simple in structure, easy for installation, is not had an impact to total figure arrangement.
Technical solution used by the utility model is：
A kind of dust pelletizing system of multi-pipeline tangential cyclone dust collectors and the combination of dry-method bag-type dust collecting device, including be used to once remove
The tangential cyclone dust collectors of multi-pipeline of dirt and the dry-method bag-type dust collecting device for final dusting, the tangential cyclone dust collectors packet of multi-pipeline
Closed vertical cylinder is included, cylinder top center is communicated with exhaust pipe, bottom is collection ash cellar, and exhaust pipe is connected to dry cloth bag and removes
Dirt device gas feed, cylinder top are communicated at least three uniformly distributed air inlet pipe, and air inlet pipe is tangent with cylinder outer circle and is connected to
It is exported to blast furnace crude gas, lower part is equipped with the reflector and reflector coaxial with cylinder in cylinder, and reflector is up-narrow and down-wide
Cone or cone column combination body, the circular cone cover that reflector surrounds for wide at the top and narrow at the bottom, both ends open, by reflector, the cone of reflector
Annular mortar joint is formed between face and the conical surface of reflector, reflector is fixed along cylinder inboard wall, reflector is mounted on by support element
On reflector or on cylinder.
Further, the tangential cyclone dust collectors of multi-pipeline are newly-built, and cylinder is cylindric.
Further, the tangential cyclone dust collectors of multi-pipeline are reconstructed by having gravitational precipitator, include gravitational dust collection after reconstruction
The shell of device and the center ingress pipe for stretching into shell, the top center of center ingress pipe is equipped with exhaust pipe, top is equipped with one
The air inlet pipe of a incision outer circle, bottom are equipped with reflector and reflector, and cylinder is made of shell and center ingress pipe, shell
Bottom is as collection ash cellar.
Further, shell includes being sequentially connected and epicone lid, cylinder and lower cone bottom, the center ingress pipe being connected to stretch into
It bores in lid and is fixed on epicone and cover, lower cone bottom shape is at collection ash cellar.
Further, cylinder is equipped with inspection manhole, and reflector is equipped with access path, and access path connects with inspection manhole
It connects and extends at annular mortar joint.
Further, when reflector bottom end is located at below reflector bottom opening, reflector is adjustable by support element height
Be connected on cylinder, cylinder outer circle is equipped with adjusting channel for adjusting reflector height.
Further, when reflector bottom end is located above reflector bottom opening, reflector is connected and fixed by support element
On reflector.
Further, the angle between the conical surface of reflector and the conical surface of reflector is 50~60 °, the gap of annular mortar joint
For 350~800mm.
Further, it is cavity inside reflector.
Further, air inlet pipe is rectangular tube.
The utility model has the beneficial effects that：
When work, raw gas is in air inlet pipe incision cylinder, and raw gas is moved along cylinder inboard wall downward spiral, anti-
It penetrates under the reflex of cover and alters course to axe movement, and changed course forms upper rotational gas flow, upper rotation gas under the reflex of reflector
Stream is discharged into dry-method bag-type dust collecting device after rising in the middle part of cylinder by exhaust pipe, the blast furnace not declined nearby with cylinder inboard wall
Raw gas conflict carries out final dusting by dry-method bag-type dust collecting device later, meanwhile, during altering course twice, grit is in gravity
Effect is lower to enter collection ash cellar by annular mortar joint；The dust pelletizing system for single-pipeline, the tangential cyclone dust collectors of dual circuit compared with handling
Flow rates are wide, with stable eddy flow center；The primary dedusting that the dust pelletizing system carries out blast furnace crude gas, efficiency of dust collection
>=80%, it is higher than the 40%~50% of gravitational precipitator, gravitational precipitator can be replaced, can concentrates and isolate grain size more than 5 μm
Grit will be present in the zinc in little particle and stay in gas secondary dedusting ash, convenient for recycle the Fe in dry gas ash,
C, gas secondary dedusting are more conducive to the recovery processing of zinc, sludge treating system, concentrator system, the Shui Chu of dry-method bag-type dust collecting device
Reason system job rate is greatly reduced, and power consumption and maintenance load also accordingly decline, and effectively mitigate follow-up gas secondary dust pelletizing system
Load；The dust pelletizing system connects blast furnace crude gas outlet by pipeline, simple in structure, easy for installation；The dust pelletizing system is taken up an area
Area is small, is not had an impact to total figure arrangement, is not limited, can be reduced investment outlay by landform；Support element makes reflector structure stablize,
Do not occur to swing under the impact of air-flow, shake.
Description of the drawings
Fig. 1 is the schematic diagram of the tangential cyclone dust collectors of multi-pipeline created in the utility model embodiment one.
Fig. 2 is in the utility model embodiment two by having the tangential cyclone dust collectors of multi-pipeline of gravitational precipitator reconstruction
Schematic diagram.
In figure：1- air inlet pipe；2- exhaust pipes；3- cylinders；4- reflectors；5- reflectors；6- collection ash cellars；7- shells；In 8-
Heart ingress pipe.
Specific implementation mode
The utility model is further described with reference to the accompanying drawings and examples.
As depicted in figs. 1 and 2, in embodiment one and embodiment two, the tangential cyclone dust collectors of multi-pipeline and dry cloth bag
The dust pelletizing system of deduster combination includes for the tangential cyclone dust collectors of multi-pipeline of primary dedusting and for the dry of final dusting
Method bag filter, the tangential cyclone dust collectors of multi-pipeline include closed vertical cylinder 3, and 3 top center of cylinder is communicated with exhaust
Pipe 2, bottom are collection ash cellar 6, and exhaust pipe 2 is connected to dry-method bag-type dust collecting device gas feed, and 3 top of cylinder is communicated at least three
Uniformly distributed air inlet pipe 1, air inlet pipe 1 it is tangent with 3 outer circle of cylinder and be connected to blast furnace crude gas outlet (air inlet pipe 1 successively with change
Diameter pipe is connected to down-comer, and reducer pipe is gradually narrowed to cylinder 3, and blast furnace crude gas outlet is generally connected with delivery line and rising
Pipe, down-comer passes through tedge and blast furnace crude gas outlet), lower part is equipped with the reflector 4 coaxial with cylinder 3 in cylinder 3
With reflector 5, reflector 4 is up-narrow and down-wide cone or cone column combination body, reflector 5 be wide at the top and narrow at the bottom, both ends open, general
The circular cone cover that reflector 4 surrounds forms annular mortar joint between the conical surface and the conical surface of reflector 5 of reflector 4, reflector 5 is along cylinder
3 inner wall of body is fixed, reflector 4 is mounted on by support element on reflector 5 or on cylinder 3.
When work, raw gas is cut along air inlet pipe 1 in cylinder 3, and raw gas is moved downward along 3 spiral inner wall of cylinder,
It is altered course under the reflex of reflector 5 to axe movement, and changed course forms upper rotational gas flow under the reflex of reflector 4,
Upper rotational gas flow by exhaust pipe 2 is discharged into dry-method bag-type dust collecting device after rising from the middle part of cylinder 3, not near 3 inner wall of cylinder
The blast furnace crude gas conflict of decline carries out final dusting by dry-method bag-type dust collecting device later, meanwhile, during altering course twice,
Grit enters collection ash cellar 6 by annular mortar joint under the effect of gravity；The dust pelletizing system is compared with single-pipeline, the tangential cyclone dust removal of dual circuit
Handled for device flow rates it is wide, with stable eddy flow center；The dust pelletizing system is once removed to what blast furnace crude gas carried out
Dirt, efficiency of dust collection >=80% are higher than the 40%~50% of gravitational precipitator, can replace gravitational precipitator, can concentrate and isolate grain
Diameter is more than 5 μm of grit, will be present in the zinc in little particle and stays in gas secondary dedusting ash, convenient for recycling dry watt
Fe, C in this ash, gas secondary dedusting are more conducive to the recovery processing of zinc, the sludge treating system of dry-method bag-type dust collecting device, concentration
Machine system, water treatment system operating rate are greatly reduced, and power consumption and maintenance load also accordingly decline, and effectively mitigate follow-up coal gas two
The load of secondary dust pelletizing system；The dust pelletizing system connects blast furnace crude gas outlet by pipeline, simple in structure, easy for installation；This is removed
Dirt system footprint area is small, is not had an impact to total figure arrangement, is not limited, can be reduced investment outlay by landform；Support element to reflect
4 stable structure of body does not occur to swing under the impact of air-flow, shake.
As shown in Figure 1, in embodiment one, the tangential cyclone dust collectors of multi-pipeline are newly-built, and cylinder 3 is cylindric.
As shown in Fig. 2, in embodiment two, the tangential cyclone dust collectors of multi-pipeline are reconstructed by having gravitational precipitator, reconstruction
The shell 7 comprising gravitational precipitator and the center ingress pipe 8 for stretching into shell 7, the top center of center ingress pipe 8 are equipped with row afterwards
Tracheae 2, there are one the air inlet pipe 1 of incision outer circle, bottoms to be equipped with reflector 4 and reflector 5 for top installation, and cylinder 3 is by shell 7
It is formed with center ingress pipe 8, shell 7 includes being sequentially connected and epicone lid, cylinder and lower cone bottom, the center ingress pipe 8 being connected to are stretched
Enter in epicone lid and be fixed on epicone to cover, for lower cone bottom shape at collection ash cellar 6, this reconstruction can be with investment reduction, and not to total figure
Arrangement has an impact.
In embodiment one and embodiment two, cylinder 3 is equipped with inspection manhole, and (inspection manhole is one or more, maintenance
The a little higher than reflector of manhole 5), reflector 5 is equipped with access path (access path is linear or annular), access path and inspection
It repaiies manhole connection and extends at annular mortar joint.Work and dust removing effects are influenced to avoid annular mortar joint from being blocked by gas ash, if
Inspection manhole and access path are set, artificial raked joint is carried out.
In embodiment one and embodiment two, when 4 bottom end of reflector is located at below 5 bottom opening of reflector, reflector 4
It is connected on cylinder 3 by the way that support element is adjustable for height, it is logical that 3 outer circle of cylinder is equipped with the adjusting for adjusting 4 height of reflector
Road improves the blocked situation of annular mortar joint by adjusting 4 height of reflector to adjust the size of annular mortar joint.
In embodiment one and embodiment two, when 4 bottom end of reflector is located at reflector 5 bottom opening top, reflector 4
It is fastened on reflector 5 by support element.
In embodiment one and embodiment two, according to practical dedusting needs and blast furnace crude gas dust-laden situation, design is anti-
Angle between the conical surface and the conical surface of reflector 5 of beam 4 is 50~60 °, and the gap of annular mortar joint is 350~800mm, reachable
Pass through to best reflected gas stream and convenient for gas ash.
In embodiment one and embodiment two, 4 inside of reflector is cavity, reduces 4 weight of reflector.
As depicted in figs. 1 and 2, in embodiment one and embodiment two, air inlet pipe 1 is rectangular tube, makes it preferably along interior
Wall is rotated down.
It should be understood that for those of ordinary skills, it can be modified or changed according to the above description,
And all these modifications and variations should all belong to the protection domain of the appended claims for the utility model.
Claims (7)
1. a kind of dust pelletizing system of multi-pipeline tangential cyclone dust collectors and the combination of dry-method bag-type dust collecting device, it is characterised in that：Including
The tangential cyclone dust collectors of multi-pipeline for primary dedusting and the dry-method bag-type dust collecting device for final dusting, multi-pipeline tangentially revolve
Wind deduster includes closed vertical cylinder, and cylinder top center is communicated with exhaust pipe, bottom is collection ash cellar, and exhaust pipe is connected to
Dry-method bag-type dust collecting device gas feed, cylinder top are communicated at least three uniformly distributed air inlet pipe, air inlet pipe with cylinder outer circle
Tangent and be connected to blast furnace crude gas outlet, lower part is equipped with the reflector and reflector coaxial with cylinder in cylinder, and reflector is
Up-narrow and down-wide cone or cone column combination body, the circular cone cover that reflector surrounds for wide at the top and narrow at the bottom, both ends open, by reflector,
Annular mortar joint is formed between the conical surface of reflector and the conical surface of reflector, reflector is fixed along cylinder inboard wall, reflector passes through branch
Support member is mounted on reflector or on cylinder；
The tangential cyclone dust collectors of multi-pipeline are newly-built, and cylinder is cylindric.
2. the dust pelletizing system of multi-pipeline tangential cyclone dust collectors and the combination of dry-method bag-type dust collecting device as described in claim 1,
It is characterized in that：Cylinder is equipped with inspection manhole, and reflector is equipped with access path, and access path connect and extends with inspection manhole
To annular mortar joint.
3. the dust pelletizing system of multi-pipeline tangential cyclone dust collectors and the combination of dry-method bag-type dust collecting device as described in claim 1,
It is characterized in that：When reflector bottom end is located at below reflector bottom opening, reflector is connected to by the way that support element is adjustable for height
On cylinder, cylinder outer circle is equipped with the adjusting channel for adjusting reflector height.
4. the dust pelletizing system of multi-pipeline tangential cyclone dust collectors and the combination of dry-method bag-type dust collecting device as described in claim 1,
It is characterized in that：When reflector bottom end is located above reflector bottom opening, reflector is fastened on reflector by support element
On.
5. the dust pelletizing system of multi-pipeline tangential cyclone dust collectors and the combination of dry-method bag-type dust collecting device as described in claim 1,
It is characterized in that：Angle between the conical surface of reflector and the conical surface of reflector is 50~60 °, the gap of annular mortar joint is 350~
800mm。
6. the dust pelletizing system of multi-pipeline tangential cyclone dust collectors and the combination of dry-method bag-type dust collecting device as described in claim 1,
It is characterized in that：It is cavity inside reflector.
7. the dust pelletizing system of multi-pipeline tangential cyclone dust collectors and the combination of dry-method bag-type dust collecting device as described in claim 1,
It is characterized in that：Air inlet pipe is rectangular tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721238573.3U CN207871801U (en) | 2017-09-26 | 2017-09-26 | The dust pelletizing system of the tangential cyclone dust collectors of multi-pipeline and the combination of dry-method bag-type dust collecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721238573.3U CN207871801U (en) | 2017-09-26 | 2017-09-26 | The dust pelletizing system of the tangential cyclone dust collectors of multi-pipeline and the combination of dry-method bag-type dust collecting device |
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| Publication Number | Publication Date |
|---|---|
| CN207871801U true CN207871801U (en) | 2018-09-18 |
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ID=63499491
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721238573.3U Active CN207871801U (en) | 2017-09-26 | 2017-09-26 | The dust pelletizing system of the tangential cyclone dust collectors of multi-pipeline and the combination of dry-method bag-type dust collecting device |
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| Country | Link |
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| CN (1) | CN207871801U (en) |
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2017
- 2017-09-26 CN CN201721238573.3U patent/CN207871801U/en active Active
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