CN204080006U - A kind of wet type converter gas purification cleaning apparatus - Google Patents

A kind of wet type converter gas purification cleaning apparatus Download PDF

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Publication number
CN204080006U
CN204080006U CN201420588505.XU CN201420588505U CN204080006U CN 204080006 U CN204080006 U CN 204080006U CN 201420588505 U CN201420588505 U CN 201420588505U CN 204080006 U CN204080006 U CN 204080006U
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CN
China
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cooling
eddy flow
tower
cleaning apparatus
gas purification
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Expired - Fee Related
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CN201420588505.XU
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Chinese (zh)
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赵本军
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Individual
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/25Process efficiency

Abstract

The utility model discloses a kind of wet type converter gas purification cleaning apparatus, comprise high-temperature resistant fabric loop expansion pipe, cooling, purifying tower and eddy flow dehydration tower, the upper end of high-temperature resistant fabric loop expansion pipe is connected with the gasification cooling flue of process for making, and lower end is connected with cooling, purifying tower; Cooling, purifying tower is connected by connecting tube with eddy flow dehydration tower; Separate swash plate to be arranged in cooling, purifying tower and cooling, purifying tower inner chamber is divided into upper part and lower part, be provided with one group of waterworks in upper part layering from top to bottom, washing tower uses solid spiral nozzle or nitrogen atomization spray gun and solid spiral nozzle to combinationally use.Separation swash plate is provided with circular seam type adjustable throat inlet; Above eddy flow arc plate, be provided with cleaning spraying device, the upper end of eddy flow dehydration tower communicates with exhanst gas outlet.The utility model is applicable to converter dust-removing field of purification, good dedusting effect, and water loss is low, and the workload of maintenance is little.

Description

A kind of wet type converter gas purification cleaning apparatus
Technical field
The utility model relates to metallurgy industry steel-making top-blown oxygen converter flue gas wet purification facility, specifically a kind of wet type converter gas purification cleaning apparatus.
Background technology
Converter current gas cleaning dust-removal system major part adopts system for wet purification, and high temperature converter gas is tentatively cooled to about 900 DEG C to enter Wet smoke purification system through gasification cooling flue, discharges or reclaim after purification.
The typical purification process of Wet smoke purification system is: converter gas → gasification cooling flue → mono-literary composition (overflow Venturi meter) → gravity dewatering apparatus → upcast → 180 ° elbow → bis-literary composition (adjustable throat inlet Venturi meter) → 90 ° of elbow separator → baffle plate water traps or other water trap combine → go gas blower → diffuse or discharge.
Principle is: flue gas enters that a literary composition carries out saturatedly cooling, thick dedusting, then flue gas enters two literary compositions (rectangle linear adjustable throat inlet Venturi meter or circular seam type adjustable throat inlet Venturi meter) carry out smart dedusting through upcast, 180 ° of elbow after gravity dewatering apparatus dehydration, and the flue gas band elbow separator dehydration going out two literary compositions, the water trap entering baffle plate dehydration or other type are again purified after dewatering.There is following problem in above Wet smoke purification system:
1) composition of system is complicated, and resistance is large.
2) elliptic plate type adjustable throat inlet Venturi meter (R.D type aditus laryngis) purification system effect is poor, and after purification, dust contained flue gas concentration is generally greater than 100mg/m 3.
3) original system water loss is large.
4) system device often blocks dust stratification, and system overhaul workload is large.
Summary of the invention
In order to overcome above-mentioned defect, the purpose of this utility model is to provide a kind of wet type converter gas cleaning cleaning apparatus, this device purification efficiency is high, system simplification, water saving.
The purpose of this utility model is achieved through the following technical solutions:
A kind of wet type converter gas purification cleaning apparatus, it is characterized in that: this device comprises high-temperature resistant fabric loop expansion pipe, cooling, purifying tower and eddy flow dehydration tower, the upper end of high-temperature resistant fabric loop expansion pipe is connected with the gasification cooling flue of process for making, and lower end is connected with cooling, purifying tower; Cooling, purifying tower is connected by connecting tube with eddy flow dehydration tower; The separation swash plate tilted to be arranged in cooling, purifying tower and cooling, purifying tower inner chamber is divided into upper part and lower part, one group of waterworks is provided with in upper part layering from top to bottom, separation swash plate is provided with circular seam type adjustable throat inlet, above circular seam type adjustable throat inlet, be provided with circular seam type adjustable throat inlet waterworks, be provided with upper strata water port in upper part bottom; The lower end of circular seam type adjustable throat inlet is connected with drive unit, and drive unit to be arranged on lower floor's inclined bottom plate and to be tightly connected with lower floor inclined bottom plate, is provided with lower floor's water port in the bottom of lower floor's inclined bottom plate; Connecting tube one end communicates with the lower part of cooling, purifying tower, and the other end communicates with the eddy flow arc plate being arranged on eddy flow dehydration tower bottom; Above eddy flow arc plate, be provided with cleaning spraying device, the upper end of eddy flow dehydration tower communicates with exhanst gas outlet.
In the utility model, one group of waterworks is atomizing lance or solid spiral nozzle.One group of waterworks arranges 4 ~ 8 layers; The first layer uses nitrogen atomization spray gun or solid spiral nozzle from top to bottom, and all the other each layers use spray gun and nozzle independent assortment.The water spraying direction of atomizing lance and solid spiral nozzle is independent assortment up or down, sprays water up and down the while of every layer.
The baffle for separating of the interior inclination of cooling, purifying tower is upper and lower two portions, and the double installation doing circular seam type adjustable throat inlet of dividing plate supports.Umbrella shape protective guard is provided with above circular seam type adjustable throat inlet.
Circular seam type adjustable throat inlet is lower drive-type, and drive unit is made up of coupling shaft, sealing axle sleeve, driving oil cylinder.Drive oil cylinder that Electrohydraulic push rod, electric pushrod can be used to substitute.The drive unit of circular seam type adjustable throat inlet is positioned at cooling, purifying tower bottom, and circular seam type adjustable throat inlet flue gas flows from top to bottom, and water spray adopts single spiral solid nozzle or multiple aditus laryngis top that is combined in spray downwards.
Separate swash plate top and the bottom in cooling, purifying tower and be provided separately water port, draining enters the drainage by suction water seal that flue gas in system and air can be separated.Upper strata water port is double water-discharging outlets self-conductance formula, and water port size is not less than DN300 to prevent water drainage hole plug.
Below the separation swash plate of inner inclination, a high position is provided with exhanst gas outlet, with connecting tube access eddy flow dehydration tower.Nitrogen atomization spray gun is provided with above eddy flow arc plate.The accelerated spiral board that flows through of flue gas from bottom to top forms rotation.
Be provided with spiral board water trap in the upper end of eddy flow dehydration tower, water trap swash plate is made up of the flow deflector of one group of oblique arrangement.Spiral board water trap place is provided with pumping equipment.
Water lute drainer is equipped with bottom cooling, purifying tower and eddy flow dehydration tower.
The efficiency of wet dedusting depends primarily on the efficiency of dust collection of adjustable Venturi meter, and the efficiency of dust collection approach that will improve adjustable Venturi meter has 2:
L selects efficient adjustable Venturi meter
Traditional RD aditus laryngis limit due to structure, and efficiency of dust collection is difficult to improve again, uses the dust contained flue gas concentration after the system purification of RD aditus laryngis all can not be less than 100mg/Nm 3.The another one disadvantage of RD aditus laryngis is water jet blocking, needs to arrange nitrogen and discloses pin cleaning water jet, and nitrogen to disclose the failure rate of pin own high.The efficiency of dust collection of circular seam type adjustable throat inlet is higher than RD aditus laryngis, and water spray uses bigbore spiral nozzle, and can not block, maintenance management workload is little.
L improves the gas velocity of Venturi meter
Wet smoke purification system uses Venturi meter to regulate flue gas flow rate, makes to be entered in water by the particle dust in flue gas in water and flue gas mixing flow at high speed process, and in follow-up dehydration facility, deviate from sewage and be purified.
In order to improve efficiency of dust collection, the speed that raising flue gas and atomized water pass through aditus laryngis is most important, and the larger efficiency of dust collection of speed is higher, and aditus laryngis resistance is also higher.From aditus laryngis drag data, when the running resistance of circular seam type adjustable throat inlet reaches 1400 ~ 2200Pa, efficiency of dust collection just can meet current environment protection emission requirement.
Because the power of Wet smoke purification system is provided by air blower for coal gas to converter, blower press general is at present fixing, is generally 26000 ~ 28000Pa.The resistance that aditus laryngis resistance just must reduce all the other facilities will be improved when total head is fixed.
In the utility model, the flow process of flue gas is simplified:
Converter gas → gasification cooling flue → high temperature fabric compensator → cooling, purifying tower → connecting tube → eddy flow dehydration tower (wet revolve water trap, spiral board water trap) → go gas blower → diffuse or discharge.
Compared with prior art, the utility model simple flow and device structure, the drag losses that the system that significantly reduces is unnecessary, the fan pressure head saved all is used for the travelling speed of enlarged link seam adjustable throat inlet, has increased substantially efficiency of dust collection.The converter gas dust content purified through this system and device can reach the up-to-date 50mg/Nm of country 3emission standard.The utility model purification efficiency is high, system simplification, water saving.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1-waterworks, 3-umbrella shape protective guard, 4-circular seam type adjustable throat inlet waterworks, 5-separates swash plate, 6-upper strata water port, 7-circular seam type adjustable throat inlet, 8-coupling shaft, 9-sealing axle sleeve, 10-drives oil cylinder, 11-lower floor inclined bottom plate, 12-lower floor water port, 13-cooling, purifying tower flue gas exports, 14-eddy flow dehydration tower water port, 15-eddy flow arc plate, 16-cleaning spraying device, 17-nitrogen atomization spray gun, 18-water trap swash plate, 19-pumping equipment, 20-gasification cooling flue, 21-high-temperature resistant fabric loop expansion pipe, 22-cooling, purifying tower, 23-eddy flow dehydration tower, 24-connecting tube, 25-spiral board water trap, 26-water lute drainer.
Embodiment
A kind of wet type converter gas purification cleaning apparatus, comprise high-temperature resistant fabric loop expansion pipe 21, cooling, purifying tower 22 and eddy flow dehydration tower 23, the upper end of high-temperature resistant fabric loop expansion pipe is connected with the gasification cooling flue 20 of process for making, and lower end is connected with cooling, purifying tower; Cooling, purifying tower is connected by connecting tube 24 with eddy flow dehydration tower; The separation swash plate 5 tilted to be arranged in cooling, purifying tower and cooling, purifying tower inner chamber is divided into upper part and lower part, one group of waterworks is provided with in upper part layering from top to bottom, separation swash plate is provided with circular seam type adjustable throat inlet, above circular seam type adjustable throat inlet, be provided with circular seam type adjustable throat inlet waterworks, be provided with upper strata water port in upper part bottom; The lower end of circular seam type adjustable throat inlet is connected with drive unit, and drive unit to be arranged on lower floor's inclined bottom plate and to be tightly connected with lower floor inclined bottom plate, is provided with lower floor's water port in the bottom of lower floor's inclined bottom plate; Connecting tube one end communicates with the lower part of cooling, purifying tower, and the other end communicates with the eddy flow arc plate being arranged on eddy flow dehydration tower bottom; Above eddy flow arc plate, be provided with cleaning spraying device, the upper end of eddy flow dehydration tower communicates with exhanst gas outlet.
Be provided with spiral board water trap in the upper end of eddy flow dehydration tower, water trap swash plate is made up of the flow deflector of one group of oblique arrangement.Spiral board water trap place is provided with pumping equipment.Water lute drainer is equipped with bottom cooling, purifying tower and eddy flow dehydration tower.
Cooling, purifying tower the 1st layer of waterworks, this layer of waterworks can adopt nitrogen atomization spray gun or spray gun combination, and also can adopt solid spiral nozzle or nozzles combine, water spraying direction can combine up and down.The 2nd layer, cooling, purifying tower is to n-th layer waterworks, and usual n is less than 7, determines according to installing space and design calculation.This waterworks can be single or combine solid spiral nozzle, and water spraying direction can combine up and down.
Umbrella shape protective guard 3 effectively can be eliminated gasification cooling flue and fall the infringement to aditus laryngis that slag causes, and extends the aditus laryngis life-span.The system little for accumulated slag in gasification cooling flue can not be established.
Circular seam type adjustable throat inlet waterworks 4, single-nozzle or multiple combination, water spraying direction is downward.
The separation swash plate 5 of cooling, purifying tower, the double circular seam type adjustable throat inlet that does installs support, simultaneously as upper strata drainage slope.
Cooling, purifying tower upper strata water port 6, caliber is not less than 350mm, adopts double-layer drainage anti-blockage structure.
Circular seam type adjustable throat inlet 7, drive unit is lower drive-type, and drive unit is made up of coupling shaft 8, sealing axle sleeve 9, driving oil cylinder 10.Drive oil cylinder 10 that Electrohydraulic push rod, electric pushrod can be used to substitute.
Cooling, purifying tower lower floor inclined bottom plate 11, doublely does tightness system erecting stage, and simultaneously as lower floor's drainage slope, bottom is provided with water port 12.
Cooling, purifying tower flue gas outlet 13, is positioned at cooling, purifying tower and separates below swash plate 5 high-order.
The bottom of eddy flow dehydration tower is wet revolves water trap water port 14.The bottom of eddy flow dehydration tower is wet revolves water trap inner eddy flow arc plate 15.
The bottom of eddy flow dehydration tower is wet revolves water trap inner eddy flow arc plate cleaning spraying device 16 and is formed by multiple nozzles combine.Optional nitrogen atomization spray gun 17, single, direction is downward.
The utility model simple flow and device structure, the drag losses that the system that significantly reduces is unnecessary, the fan pressure head saved all is used for the travelling speed of enlarged link seam adjustable throat inlet, has increased substantially efficiency of dust collection.The converter gas dust content purified through this system and device can reach the up-to-date 50mg/Nm of country 3emission standard.

Claims (10)

1. a wet type converter gas purification cleaning apparatus, it is characterized in that: this device comprises high-temperature resistant fabric loop expansion pipe (21), cooling, purifying tower (22) and eddy flow dehydration tower (23), the upper end of high-temperature resistant fabric loop expansion pipe (21) is connected with the gasification cooling flue (20) of process for making, and lower end is connected with cooling, purifying tower (22); Cooling, purifying tower (22) is connected by connecting tube (24) with eddy flow dehydration tower (23); The separation swash plate (5) tilted to be arranged in cooling, purifying tower (22) and cooling, purifying tower (22) inner chamber is divided into upper part and lower part, one group of waterworks (1) is provided with in upper part layering from top to bottom, separation swash plate (5) is provided with circular seam type adjustable throat inlet (7), be provided with circular seam type adjustable throat inlet waterworks (4) in circular seam type adjustable throat inlet (7) top, be provided with upper strata water port (6) in upper part bottom; The lower end of circular seam type adjustable throat inlet (7) is connected with drive unit, and drive unit is arranged on lower floor's inclined bottom plate (11) and goes up and be tightly connected with lower floor's inclined bottom plate (11), is provided with lower floor's water port (12) in the bottom of lower floor's inclined bottom plate (11); Connecting tube (24) and one end communicate with the lower part of cooling, purifying tower (22), and the other end communicates with the eddy flow arc plate (15) being arranged on eddy flow dehydration tower (23) bottom; Be provided with cleaning spraying device (16) in eddy flow arc plate (15) top, the upper end of eddy flow dehydration tower (23) communicates with exhanst gas outlet.
2. wet type converter gas purification cleaning apparatus according to claim 1, is characterized in that: one group of waterworks (1) is atomizing lance or solid spiral nozzle.
3. wet type converter gas purification cleaning apparatus according to claim 2, is characterized in that: one group of waterworks (1) arranges 4 ~ 8 layers; The first layer uses nitrogen atomization spray gun or solid spiral nozzle from top to bottom, and all the other each layers use spray gun and nozzle independent assortment.
4. wet type converter gas purification cleaning apparatus according to claim 2, is characterized in that: the water spraying direction of atomizing lance and solid spiral nozzle is independent assortment up or down, sprays water up and down the while of every layer.
5. wet type converter gas purification cleaning apparatus according to claim 1, is characterized in that: be provided with umbrella shape protective guard (3) in circular seam type adjustable throat inlet (7) top.
6. wet type converter gas purification cleaning apparatus according to claim 1, is characterized in that: be provided with nitrogen atomization spray gun (17) in eddy flow arc plate (15) top.
7. wet type converter gas purification cleaning apparatus according to claim 1, it is characterized in that: be provided with spiral board water trap (25) in the upper end of eddy flow dehydration tower (23), water trap swash plate (18) is made up of the flow deflector of one group of oblique arrangement.
8. wet type converter gas purification cleaning apparatus according to claim 7, is characterized in that: spiral board water trap (25) place is provided with pumping equipment (19).
9. wet type converter gas purification cleaning apparatus according to claim 1, is characterized in that: the type of drive of circular seam type adjustable throat inlet (7) is lower drive-type, and drive unit is made up of coupling shaft (8), sealing axle sleeve (9), driving oil cylinder (10).
10. wet type converter gas purification cleaning apparatus according to claim 1, is characterized in that: be equipped with water lute drainer (26) at cooling, purifying tower (22) and eddy flow dehydration tower (23) bottom.
CN201420588505.XU 2014-10-13 2014-10-13 A kind of wet type converter gas purification cleaning apparatus Expired - Fee Related CN204080006U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420588505.XU CN204080006U (en) 2014-10-13 2014-10-13 A kind of wet type converter gas purification cleaning apparatus

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Application Number Priority Date Filing Date Title
CN201420588505.XU CN204080006U (en) 2014-10-13 2014-10-13 A kind of wet type converter gas purification cleaning apparatus

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CN204080006U true CN204080006U (en) 2015-01-07

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105238904A (en) * 2015-09-04 2016-01-13 江苏博际喷雾系统有限公司 Low-energy-consumption semidry-method dust removal system based on evaporative cooling for primary flue gas of converter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105238904A (en) * 2015-09-04 2016-01-13 江苏博际喷雾系统有限公司 Low-energy-consumption semidry-method dust removal system based on evaporative cooling for primary flue gas of converter

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150107

Termination date: 20151013

EXPY Termination of patent right or utility model