CN203373375U - Primary smoke dry method dedusting cinder pneumatic transmission system of revolving furnace - Google Patents

Primary smoke dry method dedusting cinder pneumatic transmission system of revolving furnace Download PDF

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Publication number
CN203373375U
CN203373375U CN201320381933.0U CN201320381933U CN203373375U CN 203373375 U CN203373375 U CN 203373375U CN 201320381933 U CN201320381933 U CN 201320381933U CN 203373375 U CN203373375 U CN 203373375U
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CN
China
Prior art keywords
cinder
storehouse
ash
tube
cooling tower
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Withdrawn - After Issue
Application number
CN201320381933.0U
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Chinese (zh)
Inventor
葛雷
胡世平
王亮
王勇纲
纪世昌
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Wisdri Engineering and Research Incorporation Ltd
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Wisdri Engineering and Research Incorporation Ltd
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Priority to CN201320381933.0U priority Critical patent/CN203373375U/en
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Abstract

The utility model relates to a primary smoke dry method dedusting cinder pneumatic transmission system of a revolving furnace. The primary smoke dry method dedusting cinder pneumatic transmission system comprises an evaporation cooling tower (1), an ash discharging pipe (4), a bin pump (10), a pneumatic transmission pipe (17) and a cinder bin (18) which are connected in sequence, wherein the evaporation cooling tower (1) is internally provided with a rapping apparatus (2) and a charge level indicator (3); the pneumatic transmission pipe (17) is connected with an air storage tank (14), the inlet of the air storage tank (14) is connected with a first nitrogen pipe (13), and the inlet of the first nitrogen pipe (13) is connected with a nitrogen main pipe; the bin pump (10) and the cinder bin (18) are connected with the pneumatic transmission pipe (17). The primary smoke dry method dedusting cinder pneumatic transmission system provided by the utility model adopts a common ash transporting vehicle to transport ash, the investment is greatly reduced, the cost is saved, meanwhile, the quantity of equipment and maintenance of equipment are reduced, a problem that the height of the evaporation cooling tower is limited when a dry method is utilized to dedust and remould is solved, the primary smoke dry method dedusting cinder pneumatic transmission system is particularly suitable for a project that a primary smoke wet method is replaced by dry method dedusting, and the application prospect is wide.

Description

Dry fume dedusting cinder air-transport system of a kind of converter
Technical field
The utility model relates to the environmental protection equipment field, more particularly, relates to dry fume dedusting cinder air-transport system of a kind of converter.
Background technology
Along with the continuous reinforcement of environmental consciousness, flue gas of converter newly-built and reconstruction mostly adopts dry method dust.The cinder that wet cooling tower below banana-bends is collected is delivered to the cinder storehouse in the converter power house by built-in chain conveyor, pneumatic gate valve and pneumatic double-layer flap valve under action of gravity, and cinder is directly transported outward comprehensive utilization by the vacuum suction and discharge tank car.
The problem that dry fume dedusting cinder delivery system of existing converter mainly exists: the one, built-in chain conveyor failure rate is high, and often the card ash, have a strong impact on converter and normally produce; The 2nd, the cinder storehouse is located in the converter power house, often is subject to the restriction of process for making arrangement condition, consider the fortune ash passage of automobile turnover, has taken a large amount of interior spaces; The 3rd, each price of vacuum suction and discharge tank car, 1,000,000 yuan of left and right, is invested higher.
The utility model content
The technical problems to be solved in the utility model is, for the above-mentioned defect of prior art, provides a kind of converter a dry fume dedusting cinder air-transport system.
The utility model solves the technical scheme that its technical problem adopts: construct dry fume dedusting cinder air-transport system of a kind of converter, comprise the wet cooling tower, ash-unloading tube, storehouse pump, pneumatic carrier and the cinder storehouse that connect successively;
The lower cone bucket of described transpiration cooling tower bottom, for trapping the cinder of raw gas, is provided with rapping apparatus and level gage in wet cooling tower; Described storehouse pump is arranged on the below of described wet cooling tower, and the cinder-discharging port of the lower cone bucket of described wet cooling tower is connected by described ash-unloading tube with the storehouse pump intake, and described ash-unloading tube is provided with pneumatic gate valve and the first Pneumatic double gate valve; Pump top, described storehouse is provided with the first vacuum pressure relief valve;
Described pneumatic carrier is connected with gas-holder, and the entrance of described gas-holder is connected with the first nitrogen tube, and the entrance of described the first nitrogen tube is connected with nitrogen header pipe; Described storehouse pump is connected by pneumatic carrier with the cinder storehouse, and described pneumatic carrier is provided with the second Pneumatic double gate valve, and pump bottom in described storehouse is provided with the first class device;
The nitrogen tube of described gas-holder outlet is divided into two-way, and a road is connected with described first class device, and another road is connected with described pneumatic carrier, between described gas-holder and storehouse pump, is provided with pneumatic ball valve;
Sack cleaner and the second vacuum pressure relief valve are established in top, described cinder storehouse, be provided with the second gasifying device in the cone bucket under described cinder storehouse, the cinder-discharging port of the lower cone bucket of bottom, described cinder storehouse is connected with the second hand operated gate valve entrance, and described the second hand operated gate valve outlet is connected with the dust humidifying agitator entrance; The outlet of described dust humidifying agitator is connected by ash releasing tube with the canvas hose entrance;
Described nitrogen header pipe also is connected with the second nitrogen tube entrance, and described the second nitrogen tube outlet is divided into two-way, and a road is connected with the second gasifying device, and another Lu Yucang top sack cleaner connects;
Establish relief valve and magnetic valve between the second nitrogen tube and second gasifying device.
In dry fume dedusting cinder air-transport system of converter described in the utility model, under described wet cooling tower, the cone bucket is provided with the first accident ash-unloading tube, and described the first accident ash-unloading tube is provided with the first hand operated gate valve.
In dry fume dedusting cinder air-transport system of converter described in the utility model, between described ash-unloading tube and the first accident ash-unloading tube, be provided with pipe connecting.
In dry fume dedusting cinder air-transport system of converter described in the utility model, under described cinder storehouse, the cone bucket is provided with the second accident ash-unloading tube, and described the second accident ash-unloading tube is provided with the 3rd hand operated gate valve.
In dry fume dedusting cinder air-transport system of converter described in the utility model, described wet cooling tower is provided with manhole.
In dry fume dedusting cinder air-transport system of converter described in the utility model, pump bottom in described storehouse is provided with water shoot.
Implement dry fume dedusting cinder air-transport system of converter of the present utility model, there is following beneficial effect:
1, number of devices and maintenance of the equipment amount have been reduced.Dismountable cover banana-bends and built-in chain conveyor, solved the problem of built-in chain conveyor card ash, reduced equipment failure rate, ensured that converter normally produces.
2, the cinder storehouse both can be placed in the converter power house, also can be placed on outside the converter power house, and storage ash and fortune ash are not subject to the restriction of place and distance.
3, after the utility model adopts dust humidifying agitator, can adopt common bulk cement truck fortune ash, greatly reduce investment, cost-saving.
The height-limited problem of wet cooling tower when 4, the utility model has solved the dry method dust transformation, especially be applicable to flue-gas wet dust removal of converter and change the dry method dust project, has a extensive future.
The accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:
Fig. 1 is the structural representation of a dry fume dedusting cinder air-transport system of the utility model converter.
Embodiment
Understand for technical characterictic of the present utility model, purpose and effect being had more clearly, now contrast accompanying drawing and describe embodiment of the present utility model in detail.
As shown in Figure 1, dry fume dedusting cinder air-transport system of converter of the present utility model comprises wet cooling tower 1, ash-unloading tube 4, storehouse pump 10, pneumatic carrier 17 and the cinder storehouse 18 connected successively.
The lower cone bucket of wet cooling tower 1, for trapping the cinder of raw gas, is provided with level gage 3 and rapping apparatus 2 in wet cooling tower 1.Can detect the cinder amount in wet cooling tower 1 by level gage 3, by rapping apparatus 2, can guarantee that cinder can fall in ash-unloading tube 4 smoothly, prevent from stopping up.Storehouse pump 10 is arranged on the below of wet cooling tower 1, and the cinder-discharging port of the lower cone bucket of wet cooling tower 1 is connected by ash-unloading tube 4 with storehouse pump 10 entrances, and ash-unloading tube 4 is provided with pneumatic gate valve 5 and the first Pneumatic double gate valve 6.When pneumatic gate valve 5 and the first Pneumatic double gate valve 6 are opened, the cinder of wet cooling tower 1 inside falls in storehouse pump 10 by ash-unloading tube 4.The top of storehouse pump 10 is provided with the first vacuum pressure relief valve 12, prevents that pump 10 internal pressures in storehouse are excessive.
Pneumatic carrier 17 is connected with gas-holder 14, and the entrance of gas-holder 14 is connected with the first nitrogen tube 13, and the entrance of the first nitrogen tube 13 is connected with nitrogen header pipe.Storehouse pump 10 is connected by pneumatic carrier 17 with cinder storehouse 18, and pneumatic carrier 17 is provided with the second Pneumatic double gate valve 16, and pump 10 bottoms in storehouse are provided with the first class device.
The nitrogen tube of gas-holder 14 outlets is divided into two-way, and a road is connected with the first class device, and another road is connected with pneumatic carrier 17, between gas-holder 14 and storehouse pump 10, is provided with pneumatic ball valve 15.
18 tops, cinder storehouse are provided with top, storehouse sack cleaner 19 and the second vacuum pressure relief valve 20.Top, storehouse sack cleaner 19 is for collecting the dust at 18 tops, cinder storehouse.The second vacuum pressure relief valve 20 is excessive for preventing cinder storehouse 18 internal pressures.Be provided with second gasifying device 30 in the cone bucket of 18 times, cinder storehouse, the cinder-discharging port of the 18 times cone buckets in cinder storehouse is connected with the second hand operated gate valve 21 entrances, the second hand operated gate valve 21 outlets are connected with dust humidifying agitator 22 entrances, and the outlet of dust humidifying agitator 22 is connected by ash releasing tube 23 with canvas hose 24 entrances.
Nitrogen header pipe also is connected with the second nitrogen tube 27 entrances, and the second nitrogen tube 27 outlets are divided into two-way, and a road is connected with second gasifying device 30, and another Lu Yucang top sack cleaner 19 connects.Establish relief valve 28 and magnetic valve 29 between the second nitrogen tube 27 and second gasifying device 30.
In the utility model, dry fume dedusting cinder air-transport system of converter carries the technical process of cinder as follows:
1 time cone bucket cinder-discharging port → ash-unloading tube 4 → pneumatic gate valve 5 → the first Pneumatic double gate valve 6 → storehouse pump 10 → the second Pneumatic double gate valve 16 → pneumatic carrier 17 → cinder storehouse 18 → the second hand operated gate valve 21 → dust humidifying agitator 22 → ash releasing tube 23 → canvas hose 24 of wet cooling tower.
The dust-laden raw gas is during by wet cooling tower 1 time cone bucket, and owing to flowing to the variation occurred more than 90 °, under the effect of gravity and centrifugal force, 25%~35% is generally 30% crude particle dust is captured at lower cone bucket place; The crude particle dust temperature is 200~300 ℃ and is generally 250 ℃; Crude particle dust tap density 1.8~2.6t/m 3; Crude particle dust water ratio 3%~5%.
Level gage 3 detects when 1 time interior cinder of cone bucket of wet cooling tower reaches upper limit and sends signal, starts to unload ash to storehouse pump 10, and rapping apparatus 2 is started working simultaneously.Cinder enters storehouse pump 10 through wet cooling tower 1 time cone bucket cinder-discharging port, ash-unloading tube 4, pneumatic gate valve 5 and the first Pneumatic double gate valve 6, after pump 10 material in storehouse are full, after first class device fluidisation, by pneumatic carrier 17, delivers to cinder storehouse 18.Also level gage can be set in storehouse pump 10, by level gage, detect the cinder amount in storehouse pump 10.While opening magnetic valve 29, second gasifying device 30 spray low-pressure nitrogens, can reduce the temperature of cinder storehouse 18 interior cinders, also can the fluidisation cinder, be convenient to unload ash.The cinder that top, storehouse sack cleaner 19 is collected is delivered to 18 bottoms, cinder storehouse by the second nitrogen tube 27, guarantees the cinder discharging fully fast in cinder storehouse 18, reduces residual.Can regulate the intake of nitrogen by relief valve 28.Unload ash and adopt common bulk cement truck fortune ash, cinder, after dust humidifying agitator 22 humidifications, joins in bulk cement truck by ash releasing tube 23 and canvas hose 24.
Level gage 3 in wet cooling tower 1 detects when 1 time interior cinder of cone bucket of wet cooling tower unloads to lower limit and sends signal, stops unloading ash to storehouse pump 10, and rapping apparatus 2 quits work simultaneously.Ash envelope in 1 time cone bucket of wet cooling tower can prevent that coal gas is excessive, ash envelope height 800~1000mm.
Further, 1 time cone bucket of wet cooling tower is provided with the first accident ash-unloading tube 7, the first accident ash-unloading tubes 7 and is provided with the first hand operated gate valve 9.During 10 maintenance of storehouse pump, cinder is discharged through wet cooling tower 1 time cone bucket accident cinder-discharging port, the first accident ash-unloading tube 7 and the first hand operated gate valve 9.Be provided with pipe connecting 8 between ash-unloading tube 4 and the first accident ash-unloading tube 7, be mainly used to get rid of the accident ponding in 1 time cone bucket of wet cooling tower.Pump 10 bottoms in storehouse also can arrange water shoot 11, for discharging the ponding in storehouse pump 10.
Further, 18 times, cinder storehouse cone bucket is provided with the second accident ash-unloading tube 25, the second accident ash-unloading tubes 25 and is provided with the 3rd hand operated gate valve 26.When overhaul in cinder storehouse 18, cinder 18 times through the cinder storehouse cone bucket accident cinder-discharging ports, the second accident ash-unloading tube 25 and the 3rd hand operated gate valves 26 are discharged.
Further, wet cooling tower 1 is provided with manhole, easy access.
Further, pump 10 materials in storehouse are 16MnR or Q235B or spheroidal graphite cast iron or stainless steel.Storehouse pump 10 capacity: 1.0~10m 3; Storehouse pump 10 quantity>=1, can a plurality ofly be used in combination.Pneumatic carrier 17 adopts containing the manganese weldless steel tube, elbow, threeway wear-resistant ceramic of lining material, and pipe bending radius >=10 times pipe diameter, pipeline has choke preventing function.
Storehouse pump 10 adopts and is interrupted the mode of carrying, and cinder of every conveying, be a working cycle, and each circulation is divided into 4 steps:
1, charging: pneumatic gate valve 5 and the first Pneumatic double gate valve 6 are opened condition, pneumatic ball valve 15 and the second Pneumatic double gate valve 16 are closed, 1 time cone bucket of storehouse pump 10 and wet cooling tower is communicated with, rapping apparatus 2 work, cinder enters storehouse pump 10 under action of gravity, when level gage 3 that storehouse pump 10 carries detect material full after, send signal and pass through the PLC time variable control, automatically close the first Pneumatic double gate valve 6, fill process finishes, and rapping apparatus 2 quits work.
2, fluidisation: pneumatic ball valve 15 is opened, nitrogen enters the first class device in storehouse pump 10 from gas-holder 14, the abundant fluidisation of cinder in storehouse pump 10, pressure constantly raises, when pressure rises to the setting operating pressure, by the PLC time variable control, automatically open second Pneumatic double gate valve 16 at storehouse pump 10 sidepiece discharge port places, fluid mapper process finishes, and enters course of conveying.
3, carry: after the second Pneumatic double gate valve 16 is opened, the uniform gas ash of fluidisation mixture is delivered to cinder storehouse 18 by pneumatic carrier 17, and now the pressure in storehouse pump 10 keeps stable.After gas ash mixture in storehouse pump 10 has been carried, the resistance of pneumatic carrier 17 descends, the pressure of pneumatic carrier 17 starts to reduce, when being reduced to the threshold pression of setting, course of conveying finishes, enter purge, now pneumatic ball valve 15 and the second Pneumatic double gate valve 16 still remain on opened condition.
4, purge: nitrogen continues purge bin pump 10 and pneumatic carrier 17, now storehouse pump 10 is interior without flying dust, gas ash mixture in pneumatic carrier 17 reduces gradually, all almost finally nitrogen, systemic resistance continues to descend and after a period of stabilisation, purge finishes, and closes pneumatic ball valve 15 and the second Pneumatic double gate valve 16, then open the first Pneumatic double gate valve 6, storehouse pump 10 recovers feed state.So far, comprise that a delivery cycle of step finishes, restart next circulation.
Converter in dry fume dedusting cinder air-transport system of the utility model converter is defined as: decarburization converter or dephosphorization converter or lava homogenizing furnace or stainless steel.Air-transport system of the present utility model is applicable to the conveying of 80t~300t converter one time dry fume dedusting cinder.The about 300m of its fed distance, the about 30m of climb altitude.Its delivery medium adopts low-pressure nitrogen, nitrogen pressure >=0.6MPa.
The above is described embodiment of the present utility model by reference to the accompanying drawings; but the utility model is not limited to above-mentioned embodiment; above-mentioned embodiment is only schematic; rather than restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; not breaking away from the scope situation that the utility model aim and claim protect, also can make a lot of forms, within these all belong to protection of the present utility model.

Claims (6)

1. dry fume dedusting cinder air-transport system of a converter, is characterized in that, comprises successively the wet cooling tower (1) that connects, ash-unloading tube (4), storehouse pump (10), pneumatic carrier (17) and cinder storehouse (18);
The lower cone bucket of described wet cooling tower (1) bottom, for trapping the cinder of raw gas, is provided with rapping apparatus (2) and level gage (3) in wet cooling tower (1); Described storehouse pump (10) is arranged on the below of described wet cooling tower (1), the cinder-discharging port of the lower cone bucket of described wet cooling tower (1) is connected by described ash-unloading tube (4) with storehouse pump (10) entrance, and described ash-unloading tube (4) is provided with pneumatic gate valve (5) and the first Pneumatic double gate valve (6); Described storehouse pump (10) top is provided with the first vacuum pressure relief valve (12);
Described pneumatic carrier (17) is connected with gas-holder (14), and the entrance of described gas-holder (14) is connected with the first nitrogen tube (13), and the entrance of described the first nitrogen tube (13) is connected with nitrogen header pipe; Described storehouse pump (10) is connected by pneumatic carrier (17) with cinder storehouse (18), and described pneumatic carrier (17) is provided with the second Pneumatic double gate valve (16), and described storehouse pump (10) bottom is provided with the first class device;
The nitrogen tube of described gas-holder (14) outlet is divided into two-way, and a road is connected with described first class device, and another road is connected with described pneumatic carrier (17), between described gas-holder (14) and storehouse pump (10), is provided with pneumatic ball valve (15);
Top, described cinder storehouse (18) is provided with top, storehouse sack cleaner (19) and the second vacuum pressure relief valve (20), be provided with second gasifying device (30) in the lower cone bucket in described cinder storehouse (18), the cinder-discharging port of the lower cone bucket of bottom, described cinder storehouse (18) is connected with the second hand operated gate valve (21) entrance, and described the second hand operated gate valve (21) outlet is connected with dust humidifying agitator (22) entrance; The outlet of described dust humidifying agitator (22) is connected by ash releasing tube (23) with canvas hose (24) entrance;
Described nitrogen header pipe also is connected with the second nitrogen tube (27) entrance, and described the second nitrogen tube (27) outlet is divided into two-way, and a road is connected with second gasifying device (30), and another Lu Yucang top sack cleaner (19) connects;
Establish relief valve (28) and magnetic valve (29) between the second nitrogen tube (27) and second gasifying device (30).
2. dry fume dedusting cinder air-transport system of converter according to claim 1, it is characterized in that, the lower cone bucket of described wet cooling tower (1) is provided with the first accident ash-unloading tube (7), and described the first accident ash-unloading tube (7) is provided with the first hand operated gate valve (9).
3. dry fume dedusting cinder air-transport system of converter according to claim 2, is characterized in that, between described ash-unloading tube (4) and the first accident ash-unloading tube (7), is provided with pipe connecting (8).
4. dry fume dedusting cinder air-transport system of converter according to claim 1, it is characterized in that, the lower cone bucket in described cinder storehouse (18) is provided with the second accident ash-unloading tube (25), and described the second accident ash-unloading tube (25) is provided with the 3rd hand operated gate valve (26).
5. dry fume dedusting cinder air-transport system of converter according to claim 1, is characterized in that, described wet cooling tower (1) is provided with manhole.
6. dry fume dedusting cinder air-transport system of converter according to claim 1, is characterized in that, described storehouse pump (10) bottom is provided with water shoot (11).
CN201320381933.0U 2013-06-28 2013-06-28 Primary smoke dry method dedusting cinder pneumatic transmission system of revolving furnace Withdrawn - After Issue CN203373375U (en)

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Application Number Priority Date Filing Date Title
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103333983A (en) * 2013-06-28 2013-10-02 中冶南方工程技术有限公司 Converter primary flue gas dry dedusting and cinder pneumatic transmission system
CN104401735A (en) * 2014-10-20 2015-03-11 无锡泓成环境科技有限公司 Pneumatic cinder conveying system of convertor once dry-method dedusting evaporative cooling tower under full working condition
CN104401734A (en) * 2014-10-20 2015-03-11 无锡泓成环境科技有限公司 Pneumatic cinder conveying system of convertor once dry-method dedusting evaporative cooling tower under full working condition

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103333983A (en) * 2013-06-28 2013-10-02 中冶南方工程技术有限公司 Converter primary flue gas dry dedusting and cinder pneumatic transmission system
CN103333983B (en) * 2013-06-28 2015-01-28 中冶南方工程技术有限公司 Converter primary flue gas dry dedusting and cinder pneumatic transmission system
CN104401735A (en) * 2014-10-20 2015-03-11 无锡泓成环境科技有限公司 Pneumatic cinder conveying system of convertor once dry-method dedusting evaporative cooling tower under full working condition
CN104401734A (en) * 2014-10-20 2015-03-11 无锡泓成环境科技有限公司 Pneumatic cinder conveying system of convertor once dry-method dedusting evaporative cooling tower under full working condition
CN104401735B (en) * 2014-10-20 2018-08-14 山东鲁南渤瑞危险废物集中处置有限公司 A kind of converter dry method dust wet cooling tower cinder air-transport system under full working scope
CN104401734B (en) * 2014-10-20 2018-09-21 嘉兴智慧园区营运管理有限公司 A kind of converter dry method dust wet cooling tower cinder air-transport system under full working scope

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