CN102974172A - Rotary pulse bag type dust remover for blast furnace gas - Google Patents
Rotary pulse bag type dust remover for blast furnace gas Download PDFInfo
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- CN102974172A CN102974172A CN2012105695582A CN201210569558A CN102974172A CN 102974172 A CN102974172 A CN 102974172A CN 2012105695582 A CN2012105695582 A CN 2012105695582A CN 201210569558 A CN201210569558 A CN 201210569558A CN 102974172 A CN102974172 A CN 102974172A
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Abstract
The invention relates to a rotary pulse bag type dust remover for blast furnace gas. According to the technical scheme, a dispersing pipe port and a pure gas outlet are formed in an upper cylinder body; a coke-oven gas inlet is formed in a middle cylinder body; and a nitrogen unblocking device, a bag taking device, a nitrogen inflating pipe, a dust discharging opening and a heating device are arranged on a lower cylinder body. A pattern card is arranged inside the upper cylinder body; filter bag holes are densely distributed on the pattern board; a filter bag is mounted under the filter bag holes; and a set of an injection device is mounted at the upper part of the pattern card. A pulse air pocket bracket and a pulse air pocket are sequentially mounted at the top of the upper cylinder body; a twisted-pair wire pulse airflow output pipe is arranged inside the pulse air pocket; and one end of the twisted-pair wire pulse airflow output pipe is connected with a pulse valve, and the other end of the twisted-pair wire pulse airflow output pipe passes through the pulse air pocket and the pulse air pocket bracket, extends into the cylinder bodies, and are fixedly connected with a positioning device I. The rotary pulse bag type dust remover provided by the invention is simple in structure; dust cleaning operation can be completed by only arranging one pulse valve, so that the dust removing efficiency can be improved; and meanwhile, the quantity of the cylinder bodies in different processes can be reduced.
Description
Technical field
The invention belongs to pulse bag-type dust-removing device technique field.
Background technology
Be applicable at present normal temperature and the purification of high-temperature dusty gas and the pipe draining spray pulse bag type dust collector that particulate dust reclaims in metallurgy, chemical industry and other fields, structure is very complicated, pulse valve and injection tube are with man-to-man form design, pulse valve quantity is many, consumable accessory is many, and the manufacturing of equipment and maintenance all exist problems.In addition, also have two kinds of comparatively novel sack cleaners, a kind of by driven by motor rotating shaft rotation, filter bag is turned round jetting deashing.Another kind of by cylinder driven rotary device, filter bag is turned round jetting deashing.More than two kinds of injection pipe of dedusters to arrange one to one the form design of filter bag, the number of times school that rotates under the identical process conditions is many, filter bag on the unit are arranges that quantity is few.Therefore say that used deduster structure still haves much room for improvement at present.
Summary of the invention
The purpose of the invention provides a kind of simple in structure, with the pulse bag type dust collector of winding-up positioner, to improve the weak point of existing equipment.
The technical scheme that the invention is adopted is: blast-furnace gas rotary pulse bag type dust collector, and upper shell, middle cylinder body and lower shell are integrally formed structure, and upper shell is provided with exhaust stack interface and purified gas outlet; Middle cylinder body is provided with the raw coke oven gas import; Lower shell is provided with nitrogen blockage-clearing device, bag taking device, nitrogen blanketing valve, cinder-discharging port and heater.
Be provided with card in upper shell, the filtering bag holes that gathers on the card is installed a filter bag under each filtering bag holes, and a cover blowing device is installed on the top of card, and the positioner I is fixed on the center of card; The outside corresponding card of upper shell place is provided with differential pressure transmitter.
At the top of upper shell pulse air bag support and pulse gas bag are installed successively, pulse air is wrapped and is provided with pulse valve and pressure transmitter, be provided with twisted-pair cable air pulse efferent duct in the pulse gas bag, twisted-pair cable air pulse efferent duct one end is connected with pulse valve, the other end passes pulse gas bag and pulse air bag support, stretch in the upper shell, fix with the positioner I, twisted-pair cable air pulse efferent duct between upper shell and pulse gas bag is provided with pneumatic ball valve, sealing device I, positioner II and sealing device II, and the positioner I is connected with pneumatic rotary device.
The two ends of oblique pull frame connect blowing device and twisted-pair cable air pulse efferent duct, and part flow arrangement is with blowing device and turn round the connection of line air pulse efferent duct.
Above-mentioned blast-furnace gas rotary pulse bag type dust collector, described blowing device is made of some injection tubes, and the winding-up mouth of injection tube is corresponding with the filtering bag holes on the card, and injection tube is communicated with part flow arrangement.
Above-mentioned blast-furnace gas rotary pulse bag type dust collector, the porch of raw coke oven gas import is provided with the raw coke oven gas distribution apparatus.
Above-mentioned blast-furnace gas rotary pulse bag type dust collector, the filtering bag holes on the card are oval.
Above-mentioned blast-furnace gas rotary pulse bag type dust collector respectively is provided with cover explosion venting valve and a manhole on upper shell and the middle cylinder body.
Above-mentioned blast-furnace gas rotary pulse bag type dust collector, cylindrical shell outside are provided with filter bag room temperature transmitter, and lower shell is provided with the ash bucket temperature transmitter.
The beneficial effect of the invention is:
1, simple in structure, reasonable in design, a pulse valve only is set can finishes deashing work.Arranging of filter bag is not subjected to the restriction of pulse valve appearance and size, and under the equal area, fan-shaped injection tube is rotary pulsed to increase 10% than common rotation sack cleaner filter area.Increase 30% than pulse tube row spray pulse bag type dust collector filter area.One-time investment is few, and operating cost is low, and is easy to maintenance, but and paired pulses valve duty carry out remote monitoring.
2, single injection tube is fan-shaped, mutually arranges to be that star structure, single injection tube can cover many row's filter bags, have saved floor space greatly.
3, ellipsoidal structure is adopted in the filter bag of dust collector hole, easy for installation, overcome round bag to the high requirement of winding-up mouthful relative positional accuracy and the leakage problem between filter bag and card, not only improved efficiency of dust collection, reduced simultaneously the quantity of deduster cylindrical shell under the same process.
Used nitrogen when 4, the pulse gas bag in the invention be used for to store deashing.Pneumatic ball valve is to cut off nitrogen for when maintenance to be connected with coal gas, overhauls under the deduster normal operation guaranteeing.The positioner I is to guarantee that each rotary part vertical direction is concentric.
Description of drawings
Fig. 1 is the structural representation of the invention.
Fig. 2 is the structural representation of card and blowing device.
The specific embodiment
As depicted in figs. 1 and 2, blast-furnace gas rotary pulse bag type dust collector: upper shell (10), middle cylinder body (20) and lower shell (21) are welded to each other and are integrally formed structure.
Upper shell (10) is provided with exhaust stack interface (25) and purified gas outlet (26); Middle cylinder body (20) is provided with raw coke oven gas import (29), and the porch of raw coke oven gas import (29) is provided with raw coke oven gas distribution apparatus (28); Lower shell (21) is provided with nitrogen blockage-clearing device (22), bag taking device (23), nitrogen blanketing valve (24), cinder-discharging port (32) and heater (31).
In upper shell (10), card (16) is circular, be directly welded on the upper shell inwall, the upper filtering bag holes (16-1) that gathers of card (16), filtering bag holes (16-1) is oval, a filter bag (17) is installed under each filtering bag holes, a cover blowing device (14) is installed on the top of card (16).Blowing device (14) is comprised of 3 injection tubes (14-1), single injection tube is fan-shaped, mutually arranging is star structure, and the winding-up mouth of injection tube (14-1) is corresponding with the filtering bag holes on the card (16), and injection tube (14-1) is communicated with part flow arrangement (12).Positioner I (13) is fixed on the center of card (16); The outside corresponding card of upper shell (10) (16) locates to be provided with differential pressure transmitter (15).
Pulse air bag support (5) and pulse gas bag (2) are installed successively at the top of upper shell (10), pulse gas bag (2) is provided with pulse valve (1) and pressure transmitter (3), be provided with twisted-pair cable air pulse efferent duct (4) in the pulse gas bag (2), twisted-pair cable air pulse efferent duct (4) one ends and pulse valve (1), the other end passes pulse gas bag (2) and pulse air bag support (5), stretch in the upper shell (10), fixing with positioner I (13), twisted-pair cable air pulse efferent duct (4) between upper shell (10) and pulse gas bag (2) is provided with pneumatic ball valve (6), sealing device I (7), positioner II (33) and sealing device II (9), positioner I (33) is connected with pneumatic rotary device (8).
The two ends of oblique pull frame (11) are connected blowing device (14) and twisted-pair cable air pulse efferent duct (4) by journal stirrup with eyelet bolt, part flow arrangement (12) is with blowing device (14) and turn round line air pulse efferent duct (4) connection.
Above-mentioned blast-furnace gas rotary pulse bag type dust collector respectively is provided with cover explosion venting valve (27) and a manhole (19) on upper shell (10) and the middle cylinder body (20).
Above-mentioned blast-furnace gas rotary pulse bag type dust collector, middle cylinder body (20) outside is provided with filter bag room temperature transmitter (18), and lower shell (21) is provided with ash bucket temperature transmitter (30).
The operation principle of the invention is: in actual job, be responsible for the raw coke oven gas of sending here by raw coke oven gas, enter in the deduster through raw coke oven gas import (29), after machinery separates, raw coke oven gas is operation upwards, filters through filter bag, and the fine dust in the raw coke oven gas is attached to the filter bag outer surface, purified gas is pooled to upper shell by filter bag, then uses by purified gas outlet output.After operation a period of time, the filter bag surface dust is cumulative, and dust remover resistance rises, and when resistance rose to certain value, differential pressure transmitter (15) sent the deashing signal, and the pulse jet system starts working.At first close exit butterfly valve, pneumatic rotary device (8) band dynamic positioning system II (33) and twisted-pair cable air pulse efferent duct (4) rotation, thereby drive the blowing device rotation, the injection tube rotation, after arriving assigned address, positioner II (33) is accurately located, and guarantees injection tube under static state, winding-up mouth on the injection tube and filtering bag holes (16-1) central alignment, pulse valve is opened.Nitrogen enters twisted-pair cable air pulse efferent duct from pulse gas bag output through pulse valve, sprays nitrogen through the winding-up mouth of part flow arrangement by injection tube in filter bag again.By the expulsion pressure of nitrogen, the dust of filter bag outer surface is impacted.After finishing filter bag ash removal, pneumatic rotary device (8) continue to promote the blowing device rotation, arrive next assigned address after, positioner II (33) is accurately located again, then again the filter bag in this scope is carried out deashing.Repeatedly carry out, until whole filter bag ash removals are complete.The dust that is fallen clearly falls into lower shell, discharges from cinder-discharging port again.After deashing was complete, rotating pulse spraying equipment quit work, and the outlet stool butterfly valve is opened.Deduster enters the normal filtration state.The present invention is simple in structure, and is reasonable in design.Owing to adopt rotating pulse spraying equipment, make whole deduster that a pulse valve need only be set and to finish the deashing operation.In addition, because injection tube is sector structure, an injection tube can cover many row's filter bags, the quantity of filter bag increases 8-10% than existing version in the deduster body of identical appearance, not only reduced the number of times of rotary blowing, having reduced simultaneously floor space is a kind of very good sack cleaner.
Claims (6)
1. blast-furnace gas rotary pulse bag type dust collector, it is characterized in that: upper shell (10), middle cylinder body (20) and lower shell (21) are integrally formed structure, and upper shell (10) is provided with exhaust stack interface (25) and purified gas outlet (26); Middle cylinder body (20) is provided with raw coke oven gas import (29); Lower shell (21) is provided with nitrogen blockage-clearing device (22), bag taking device (23), nitrogen blanketing valve (24), cinder-discharging port (32) and heater (31);
In upper shell (10), be provided with card (16), the upper filtering bag holes (16-1) that gathers of card (16), a filter bag (17) is installed under each filtering bag holes, a cover blowing device (14) is installed on the top of card (16), positioner I (13) is fixed on the center of card (16); The outside corresponding card of upper shell (10) (16) locates to be provided with differential pressure transmitter (15);
Pulse air bag support (5) and pulse gas bag (2) are installed successively at the top of upper shell (10), pulse gas bag (2) is provided with pulse valve (1) and pressure transmitter (3), be provided with twisted-pair cable air pulse efferent duct (4) in the pulse gas bag (2), twisted-pair cable air pulse efferent duct (4) one ends and pulse valve (1), the other end passes pulse gas bag (2) and pulse air bag support (5), stretch in the upper shell (10), fixing with positioner I (13), twisted-pair cable air pulse efferent duct (4) between upper shell (10) and pulse gas bag (2) is provided with pneumatic ball valve (6), sealing device I (7), positioner II (33) and sealing device II (9), positioner I (33) is connected with pneumatic rotary device (8);
The two ends of oblique pull frame (11) connect blowing device (14) and twisted-pair cable air pulse efferent duct (4), and part flow arrangement (12) is with blowing device (14) and turn round line air pulse efferent duct (4) connection.
2. blast-furnace gas rotary pulse bag type dust collector as claimed in claim 1, it is characterized in that: described blowing device (14) is made of some injection tubes (14-1), the winding-up mouth of injection tube (14-1) is corresponding with the filtering bag holes on the card (16), and injection tube (14-1) is communicated with part flow arrangement (12).
3. blast-furnace gas rotary pulse bag type dust collector as claimed in claim 1, it is characterized in that: the porch of raw coke oven gas import (29) is provided with raw coke oven gas distribution apparatus (28).
4. blast-furnace gas rotary pulse bag type dust collector as claimed in claim 1 is characterized in that: the filtering bag holes (16-1) on the card (16) is for oval.
5. such as claim 1,2,3 or 4 described blast-furnace gas rotary pulse bag type dust collectors, it is characterized in that: respectively be provided with cover explosion venting valve (27) and a manhole (19) on upper shell (10) and the middle cylinder body (20).
6. blast-furnace gas rotary pulse bag type dust collector as claimed in claim 5, it is characterized in that: middle cylinder body (20) outside is provided with filter bag room temperature transmitter (18), and lower shell (21) is provided with ash bucket temperature transmitter (30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105695582A CN102974172A (en) | 2012-12-25 | 2012-12-25 | Rotary pulse bag type dust remover for blast furnace gas |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105695582A CN102974172A (en) | 2012-12-25 | 2012-12-25 | Rotary pulse bag type dust remover for blast furnace gas |
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| CN102974172A true CN102974172A (en) | 2013-03-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012105695582A Pending CN102974172A (en) | 2012-12-25 | 2012-12-25 | Rotary pulse bag type dust remover for blast furnace gas |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103521006A (en) * | 2013-10-25 | 2014-01-22 | 苏州宇洋环保设备制造有限公司 | Spraying-blowing device of bag-type dust remover used for isolating corrosive dust |
| CN113274813A (en) * | 2021-05-31 | 2021-08-20 | 宋振钰 | Sack cleaner of intermittent type formula clearance sack |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04298278A (en) * | 1991-03-27 | 1992-10-22 | Kawasaki Steel Corp | Treatment of blast furnace dust |
| CN2155267Y (en) * | 1992-11-12 | 1994-02-09 | 武汉钢铁公司 | Pulse bag dust precipitator |
| CN2383844Y (en) * | 1999-04-14 | 2000-06-21 | 北京市科林环保工程技术研究所 | Pulse bag-type duster for gas from blast furnace |
| CN2813058Y (en) * | 2005-08-18 | 2006-09-06 | 大石桥市环宇净化工程设备制造有限责任公司 | Blast-furnace gas rotary pulse bag type dust collector |
| CN201442957U (en) * | 2009-06-04 | 2010-04-28 | 鞍钢集团设计研究院 | Dry-type rotary pulse dedusting device for blast furnace gas |
| CN203030129U (en) * | 2012-12-25 | 2013-07-03 | 辽宁环宇环保技术有限公司 | Rotating pulse bag type dust collector for blast furnace gas |
-
2012
- 2012-12-25 CN CN2012105695582A patent/CN102974172A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04298278A (en) * | 1991-03-27 | 1992-10-22 | Kawasaki Steel Corp | Treatment of blast furnace dust |
| CN2155267Y (en) * | 1992-11-12 | 1994-02-09 | 武汉钢铁公司 | Pulse bag dust precipitator |
| CN2383844Y (en) * | 1999-04-14 | 2000-06-21 | 北京市科林环保工程技术研究所 | Pulse bag-type duster for gas from blast furnace |
| CN2813058Y (en) * | 2005-08-18 | 2006-09-06 | 大石桥市环宇净化工程设备制造有限责任公司 | Blast-furnace gas rotary pulse bag type dust collector |
| CN201442957U (en) * | 2009-06-04 | 2010-04-28 | 鞍钢集团设计研究院 | Dry-type rotary pulse dedusting device for blast furnace gas |
| CN203030129U (en) * | 2012-12-25 | 2013-07-03 | 辽宁环宇环保技术有限公司 | Rotating pulse bag type dust collector for blast furnace gas |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103521006A (en) * | 2013-10-25 | 2014-01-22 | 苏州宇洋环保设备制造有限公司 | Spraying-blowing device of bag-type dust remover used for isolating corrosive dust |
| CN113274813A (en) * | 2021-05-31 | 2021-08-20 | 宋振钰 | Sack cleaner of intermittent type formula clearance sack |
| CN113274813B (en) * | 2021-05-31 | 2022-07-26 | 府谷县佳民特种合金有限公司 | Sack cleaner of intermittent type formula clearance sack |
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Application publication date: 20130320 |