CN203315950U - Efficient pretreatment device for smoke gas of industrial silicon '75 ferrosilicon' ore smelting furnace - Google Patents
Efficient pretreatment device for smoke gas of industrial silicon '75 ferrosilicon' ore smelting furnace Download PDFInfo
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- CN203315950U CN203315950U CN2013202823644U CN201320282364U CN203315950U CN 203315950 U CN203315950 U CN 203315950U CN 2013202823644 U CN2013202823644 U CN 2013202823644U CN 201320282364 U CN201320282364 U CN 201320282364U CN 203315950 U CN203315950 U CN 203315950U
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Abstract
The utility model discloses an efficient pretreatment device for a smoke gas of an industrial silicon '75 ferrosilicon' ore smelting furnace. The efficient pretreatment device comprises a rectangular smoke gas inlet, a concentrated volute, fixed guide vanes, a concentrated shunt access, a cyclone separator, a cyclone separator vent, a cyclone separator outlet volute, a rectangular elbow, an air outlet exhaust riser, an air outlet and an ash outlet, and also comprises an upper end plate and a lower end plate of the concentrated volute, a cyclone cone, and cyclone ash hopper and ash bin, wherein the fixed guide vanes are arranged inside the concentrated volute. The pretreatment device adopts combination of inertial dust collection and cyclone dust removal, and is high in dust removal efficiency (can achieve over 90% in general), small in pressure loss (800-900Pa), reasonable in structure and low in energy consumption.
Description
Technical field
The utility model belongs to the flue dust waste reclamation field of ferroalloy smelting stove, relates to specifically a kind of flue dust pretreatment unit that adopts high efficient separation technology.Flue dust is carried out to pretreatment, reduce the filtration burden of bag-type dust, reduce the deashing frequency of bag-type dust, the service life of improving cloth bag, the flue dust " SILICA FUME " reclaimed is had to the purification effect simultaneously, make the treatment facility of the flue dust waste reclamation of ferroalloy smelting to the high-quality conversion.
Background technology
Ferroalloy industry silicon " 75 silicon " will produce a large amount of flue gases while smelting; if do not administered; to destroy atmospheric environment; and bring serious consequence, generally administer flue gas system and all adopt the big cloth dedustion collector with positive pressure device, if flue dust is not carried out to pretreatment; in flue dust, coarse granule can produce serious wearing and tearing to blower fan; also can increase the weight of burden and the clear meeting frequency of filter bag to the wearing and tearing of filter bag, reduce the life-span of filter bag.So, solve the wearing and tearing of flue dust to blower fan and filter bag, adopting efficient pretreatment unit is preferred approach.
In order to improve the stable and efficiency of dust pelletizing system, some manufacturer has taked to set up the measures such as cyclone dust collectors and twin-stage spiral, and its these measures of setting up do not comply with one's wishes, and are perplexing dust pelletizing system equipment always and are further developing.
The utility model content
The purpose of this utility model is the deficiency that overcomes said apparatus, provides that a kind of structure is closed, processing and manufacturing is easy, the dual combination pretreatment unit that efficiency is high, effective.
The solution of the utility model technical problem is a kind of industrial silicon " 75 ferrosilicon " smelting mine heat furnace dust highly effective pretreatment apparatus, comprise that the import of dust square type, concentrated spiral case, fixed guide vane, concentrated shunting road junction, cyclone separator, cyclone separator exhaust outlet, cyclone separator outlet volute, square type elbow, exhaust outlet air-out standpipe, air outlet, ash discharging hole, concentrated spiral case upper head plate, bottom plate, whirlwind cone, whirlwind ash bucket ash silo form, and is characterized in that: in concentrated spiral case, be furnished with fixed guide vane.Pretreatment unit is the device of inertial dust collection and cyclone dust collectors combination.Its efficiency of dust collection is high, and the pressure loss is little, and dusty gas enters concentrated spiral case 2 with the speed of 18 ~ 25m/s from square type import 1, and dusty gas forms strong rotatablely moving in concentrated spiral case, and at centrifugal force, (hypergravity refers to than terrestrial gravitation acceleration " 9.8m/s grit
2" under much bigger environment, the power that material is suffered) effect under to shell wall, separate, enter cyclone dust collectors through the dust of concentrating and separating at diffluence pass 4 places; 3 pairs of dust-contained airflows of fixed blade have guide effect, have reduced resistance, are also one group of louvered dedusters simultaneously.Dusty gas is the surface due to the effect impact blades of inertia force at grit when the fixed guide vane 3, and rebounded out and separated to the spiral case wall, the centrifugal force that most of grit produces by the break-in of air-flow separates, and purified gas is discharged through the fixed guide vane gap and entered exhaust air-out standpipe 9. and discharged by air-introduced machine through outlet 10.Account for 10% ~ 30% the ash-laden gas scale of construction with the grit that is concentrated separation, enter cyclone separator 5 through diffluence pass 4 and carry out gas, the solid separation.The import of cyclone separator 5 is comprised of diffluence pass 4.While from the dust-contained airflow of diffluence pass, with l2～23m/S speed, entering cyclone separator, air-flow will become circular motion by rectilinear motion.The overwhelming majority of swirling eddy is downward twist from cylinder along wall, towards cone, flows.Usually claim that this is outer rotational gas flow.Dusty gas produces centrifugal force " hypergravity " in rotary course, and the grit that density is greater than to gas gets rid of to wall.Once grit contacts with wall, just lose inertia force and fall along wall by the momentum of entrance velocity and downward gravity, enter ash bucket 15.The outer rotational gas flow that rotation descends is when arriving cone, because conical contraction is drawn close to the separator center.According to " spin moment " invariance principle, its tangential velocity improves constantly.When air-flow arrives a certain position, cone lower end, with same eddy flow direction from the separator middle part, the shape of from bottom to top continuing to spin is flowed, in rotational gas flow.Final purification gas is through cyclone separator blast pipe 6, cyclone separator outlet volute 7, square type elbow 8, remittance exhaust air-out standpipe 9.Pretreatment unit is the device of inertial dust collection and cyclone dust collectors combination.Its efficiency of dust collection is high, and the pressure loss is little.
Fixed guide vane (3) is comprised of several blades with arc and forms the louvered structure.
Cyclone separator (5), cyclone separator blast pipe (6), blast pipe adopt and shrink shape, and the blast pipe diameter dwindles gradually, form and shrink the shape blast pipe.
Outlet volute (7) on cyclone separator blast pipe (6) is discharged with the volute shape guiding in the outlet of its discharge pipe end.
Cyclone separator (5) is connected with cone (14) and whirlwind ash bucket (15).
Operation principle: pretreatment unit forms (seeing Fig. 2) by concentrated spiral case, fixed guide vane and cyclone dust collectors.The speed that dusty gas is sentenced l8～25m/S in concentrated volute inlet tangentially enters, and in concentrated spiral case, forms strong rotatablely moving, and at centrifugal force, (hypergravity refers to than terrestrial gravitation acceleration " 9.8m/s grit
2" under much bigger environment, the power that material is suffered) effect under to shell wall, separate, through the dust of concentrating and separating, exist: the diffluence pass place enters cyclone dust collectors.Fixed guide vane, to gas flow guiding, reduces resistance, is also one group of blinds inertial dust separator simultaneously.Dusty gas is the surface due to the effect impact blades of inertia force at grit when the fixed guide vane, and rebounded out and separated to the spiral case wall, the centrifugal force that most of grit produces by the break-in of air-flow separates, and purified gas is discharged through the fixed guide vane gap.Account for 10%～20% the ash-laden gas scale of construction with the grit that is concentrated separation, through diffluence pass, enter cyclone dust collectors.Cyclone dust collectors are the centrifugal force " hypergravity " that the dusty gas of utilization rotation produces, the fixedly separated device of a kind of dry type gas one that dust is separated from air-flow.
The beneficial effects of the utility model be obviously improved dust pelletizing system efficiency, reduce the energy consumption of deashing, increased life of bag filter, reduced operating cost.
The accompanying drawing explanation
Figure l is the utility model highly effective pretreatment apparatus schematic diagram:
Fig. 2 is the utility model highly effective pretreatment apparatus cutaway view, work schematic diagram;
1 one dust square type imports in figure; 2 one concentrated spiral cases; 3 one fixed guide vanes; 4 one concentrated shunting road junctions; 5-cyclone separator; 6-cyclone separator blast pipe; 7 one cyclone separators go out | mouthful spiral case; 8 one square type elbows; 9 one exhaust outlet air-out standpipes; 10 one air outlets; 11 1 ash discharging holes; 12 one concentrated spiral case upper head plates; L3 mono-bottom plate; 14 1 whirlwind ash bucket cones; L5 mono-whirlwind ash bucket.
The specific embodiment
Below with reference to accompanying drawing, the utility model is described in detail.
As shown in the figure; Flue dust accesses highly effective pretreatment apparatus import 1 flue dust by carrier pipe and enters strong the rotatablely moving of formation in concentrated spiral case of concentrated spiral case 2, dusty gas, and at centrifugal force, (hypergravity refers to than terrestrial gravitation acceleration " 9.8m/s grit
2" under much bigger environment, the power that material is suffered) effect under to a shell ancient piece of jade, round, flat and with a hole in its centre, separate, enter cyclone dust collectors through the dust of concentrating and separating at diffluence pass 4 places.The fixed blade 3, the fixed blade that in concentrated spiral case, are furnished with arc have guide effect to dust-contained airflow, have reduced resistance, are also one group of louvered dedusters simultaneously.Dusty gas is the surface due to the effect impact blades of inertia force at grit when the fixed guide vane, and rebounded out and separated to the spiral case wall, the centrifugal force that most of grit " coarse granule " produces by the break-in of air-flow has carried out separating and has been concentrated to the spiral case surface, under follow-up air-flow promotes to diffluence pass 4 diffluences.Micronic dust after remaining discharges, enters exhaust air-out standpipe 9 and outlet l 0 through the fixed guide vane gap with gas, export and connect air-introduced machine negative pressure end, air-introduced machine malleation termination sack cleaner, through the purified gas of sack cleaner, enters atmosphere.Thereby diffluence pass enters the dense dirt air-flow of cyclone dust collectors while with 18～23m/S speed, by air inlet pipe, entering cyclone separator, and air-flow will become circular motion by rectilinear motion.The overwhelming majority of swirling eddy is downward twist from cylinder along wall, towards cone, flows.Usually claim that this is outer rotational gas flow.Gas containing SILICA FUME produces centrifugal force in rotary course, and the grit that density is greater than to gas gets rid of to wall.Once grit contacts with wall, just lose inertia force and fall along wall by the momentum of entrance velocity and downward gravity, enter ash discharge storehouse, mouth.The outer rotational gas flow that rotation descends is when arriving cone, because conical self-constriction is drawn close to the separator center.According to " whirlwind square " invariance principle, its tangential velocity improves constantly.When air-flow arrives a certain position, cone lower end,, with same direction of rotation cyclone separator middle part, the shape of from bottom to top continuing to spin is flowed, i.e. interior rotational gas flow.Final purification gas is through cyclone separator blast pipe 6, cyclone separator outlet volute 7, square type elbow 8, finally import exhaust air-out standpipe 9.The grit of part collection at large is also escaped to lose in the exhaust air-out standpipe of auto levelizer thus, is fed in the lump sack cleaner.
Claims (5)
1. an industrial silicon " 75 ferrosilicon " smelting mine heat furnace dust highly effective pretreatment apparatus, comprise dust square type import (5), concentrated spiral case (2), fixed guide vane (3), concentrated shunting road junction (4), cyclone separator (5), cyclone separator exhaust outlet (6), cyclone separator outlet volute (7), square type elbow (8), exhaust outlet air-out standpipe (9), air outlet (10), ash discharging hole (11), concentrated spiral case upper head plate (12), bottom plate (13), whirlwind cone (14), whirlwind ash bucket (15) forms, it is characterized in that: in concentrated spiral case (2), be furnished with fixedly flow deflector (3).
2. a kind of industrial silicon according to claim 1 " 75 ferrosilicon " smelting mine heat furnace dust highly effective pretreatment apparatus is characterized in that: fixed guide vane (3) is comprised of several blades with arc and forms the louvered structure.
3. a kind of industrial silicon according to claim 1 " 75 ferrosilicon " smelting mine heat furnace dust highly effective pretreatment apparatus, it is characterized in that: cyclone separator (5), cyclone separator blast pipe (6), blast pipe adopt and shrink shape, the blast pipe diameter dwindles gradually, forms and shrinks the shape blast pipe.
4. a kind of industrial silicon according to claim 1 " 75 ferrosilicon " smelting mine heat furnace dust highly effective pretreatment apparatus is characterized in that: the volute shape guiding for the outlet of its discharge pipe end of the outlet volute (7) on cyclone separator blast pipe (6) is discharged.
5. a kind of industrial silicon according to claim 1 " 75 ferrosilicon " smelting mine heat furnace dust highly effective pretreatment apparatus, it is characterized in that: cyclone separator (5) is connected with cone (14) and whirlwind ash bucket (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202823644U CN203315950U (en) | 2013-05-22 | 2013-05-22 | Efficient pretreatment device for smoke gas of industrial silicon '75 ferrosilicon' ore smelting furnace |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013202823644U CN203315950U (en) | 2013-05-22 | 2013-05-22 | Efficient pretreatment device for smoke gas of industrial silicon '75 ferrosilicon' ore smelting furnace |
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| CN203315950U true CN203315950U (en) | 2013-12-04 |
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| CN2013202823644U Expired - Fee Related CN203315950U (en) | 2013-05-22 | 2013-05-22 | Efficient pretreatment device for smoke gas of industrial silicon '75 ferrosilicon' ore smelting furnace |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108310883A (en) * | 2018-02-28 | 2018-07-24 | 宁夏贺兰山冶金有限公司 | Smoke gas treatment system in mineral hot furnace production and casting process |
| CN110270189A (en) * | 2019-07-17 | 2019-09-24 | 西华大学 | A kind of guide-vane high pressure cyclone separator |
| CN110270184A (en) * | 2018-03-14 | 2019-09-24 | 陈妙生 | Whirlwind suction type dust removal dehumidifier with rotary shaft |
-
2013
- 2013-05-22 CN CN2013202823644U patent/CN203315950U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108310883A (en) * | 2018-02-28 | 2018-07-24 | 宁夏贺兰山冶金有限公司 | Smoke gas treatment system in mineral hot furnace production and casting process |
| CN110270184A (en) * | 2018-03-14 | 2019-09-24 | 陈妙生 | Whirlwind suction type dust removal dehumidifier with rotary shaft |
| CN110270184B (en) * | 2018-03-14 | 2024-03-29 | 陈妙生 | Cyclone negative pressure type dust removing dehumidifier with rotating shaft |
| CN110270189A (en) * | 2019-07-17 | 2019-09-24 | 西华大学 | A kind of guide-vane high pressure cyclone separator |
| CN110270189B (en) * | 2019-07-17 | 2023-12-29 | 西华大学 | Guide vane type high-pressure cyclone separator |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131204 Termination date: 20140522 |