CN202164342U - Impact type atomized spray wet-process dust-collecting device for zinc oxide volatilized dust - Google Patents

Impact type atomized spray wet-process dust-collecting device for zinc oxide volatilized dust Download PDF

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Publication number
CN202164342U
CN202164342U CN2011202327594U CN201120232759U CN202164342U CN 202164342 U CN202164342 U CN 202164342U CN 2011202327594 U CN2011202327594 U CN 2011202327594U CN 201120232759 U CN201120232759 U CN 201120232759U CN 202164342 U CN202164342 U CN 202164342U
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China
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impact type
spray
dust
zinc oxide
tower
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Expired - Fee Related
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CN2011202327594U
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Chinese (zh)
Inventor
陈均宁
黄金莲
吴傲雪
黄进文
黄卫华
雷伟明
赵瀚文
黄澳
古莉
白盈盈
韦京汝
黄荣满
李福学
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GUANGXI RESEARCH INSTITUTE OF METALLURGY
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GUANGXI RESEARCH INSTITUTE OF METALLURGY
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Abstract

An impact type atomized spray wet-process dust-collecting device for zinc oxide volatilized dust is characterized by comprising four levels of series-connected spray towers, and a 2# horizontal spray tower is arranged between a 1# vertical spray tower and a 3# vertical spray tower. A spray head and an impact type atomizer are arranged in each spray tower, and the 1# vertical spray tower, the 3# vertical spray tower and a 4# vertical spray tower are all provided with negative pressure baffles. An outlet of the dust-collecting device is provided with a sieve plate and an exhaust fan. The impact type atomized spray wet-process dust-collecting device for the zinc oxide volatilized dust has the advantages of saving a large amount of construction investment and occupied land, achieving even distribution of sprayed liquid, greatly improving operation environment, being diversified in functions, advanced in index, especially high in fluorine (F) and chlorine (C1) removing efficiency, energy-saving, environment-friendly, strong in practical applicability, convenient and simple in operation, capable of continuously operating and efficiently achieving integration of dust collection, cooling, fluoride-chlorine removing and desulfuration and easy to operate and control automatically. Simultaneously, labor intensity of workers is relieved, and production efficiency is improved.

Description

The impact type atomizing foam wet dust collector device of zinc oxide volatilization dirt
Technical field
The utility model includes the non-ferrous metal technical field of smelting, especially relates to a kind of impact type atomizing foam wet dust collector device of zinc oxide volatilization dirt.
Background technology
The domestic technical process of generally using at low grade zinc materials such as handling volatile oxidized ore, leached mud is: high temperature reduction oxidation → surface cool → bag collection → alkali cleaning defluorinate chlorine; Wherein the sulfur dioxide flue gas behind the bag collection need use liming to absorb separately.There is following shortcoming in this technology:
(1) operation is discrete, and production efficiency is low.
(2) severe operational environment, labour intensity are big, work under high dust atmosphere for a long time, and the operator is prone to send out the occupational illness of respiratory system.
(3) alkaline cleaning procedure defluorinate chlorine inefficiency, the fluorine-containing chloride wastewater amount of generation is huge, is difficult to reclaim, and water resources has been caused significant wastage; Cause secondary pollution easily.
(4) running cost is high, and facility investment is bigger.
(5) engineering machinery is prone to contained the damage of acid gas burn into, and maintenance cost is high.
This shows that above-mentioned technology can not adapt to country to aspect requirements such as environmental protection, the energy, health, suddenly waits to improve.Not enough for solving existing technology; The applicant applied for the patent of invention (patent No. is 200910114251.1) of " a kind of cleaning collecting method and device thereof of the zinc oxide that volatilizees " and authorized on July 23rd, 2009, disclose in this patent of invention a kind ofly will cool off, gather dust, technology and equipment that fluorine and chlorine removal and desulfurization are integrated into the one procedure completion.
Above-mentioned Chinese patent discloses a kind of spray-cloth bag tower apparatus, and the volatilization flue gas gets into spray-cloth bag tower through oxidizing chamber and surface cooler, and the zinc oxide in the flue gas is collected, and fluorine, chlorine get in the spray solution, and sulfurous gas forms ZnSO 3Get into the secondary zinc oxide slurries, the secondary zinc oxide slurries are after press filtration separates, and filtrating is returned and recycled, and filter residue is the secondary zinc oxide product.
But owing to be provided with cloth bag in the device, and very high by the flue gas water cut after the spray wet processing, easily cloth bag is being resulted in blockage through in the cloth bag, shorten the work-ing life of cloth bag.
In addition, the smoke catching in the spray column mainly is to rely on shower nozzle and spiral spray thrower to realize being uniformly distributed with spray, and the atomizing effect of spray liquid is limited, and shower nozzle part obstruction easily, and liquid-gas ratio will reach 1.52 (L/m 3) just can reach target dust collection rate 99.6%, liquid-gas ratio and spray liquid consumption remain in very big decline space.
For this reason, be necessary to research and develop the impact type atomizing foam wet dust collector device of novel texture.
The utility model content
The technical problem that the utility model will solve provides a kind of practicality, reliable, saving, environmental protection, can realize efficiently gathering dust, the impact type atomizing foam wet dust collector device of cooling, fluorine and chlorine removal and desulfurization integrated zinc oxide volatilization dirt.
The utility model solves the problems of the technologies described above with following technical scheme:
The impact type atomizing foam wet dust collector device of the zinc oxide volatilization dirt of the utility model has the placed in-line spray column of level Four, is a 2# Horizental showering tower between 1# and 3# vertical spray tower; Each spray column inside all is equipped with shower nozzle and impact type spraying gun, and 1#, 3# and 4# vertical spray tower are equipped with the negative pressure baffle plate; The outlet of dust arrester installation is provided with sieve plate and vacuum fan.
The impact type spraying gun is a cylinder-shaped device, and flabellum and sector wheels are positioned at air duct, and phonomoter is located at outside the air duct; The air duct housing of impact type spraying gun directly is welded in the spray column tower body, and is concentric with tower body.
In spray column, shower nozzle be arranged on the impact type spraying gun on/front end.
In the vertical spray tower, the negative pressure baffle plate is positioned at the bottom of spray column, than slurries reception tank pond face eminence slightly; The spray column lower end is a hatch frame, in the slurries of the slurries reception tank that submerges, form fluid-tight.
Be provided with over-pass between slurries reception tank and slurries transition pond.
The spray liquid composition is Na 2CO 3Solution.
The beneficial effect of the utility model is:
1. practice thrift investment: with multiple hearth furnace defluorinate chlorine or bag collection-alkali cleaning defluorinate chlorine system or with the dynamic wave systematic comparison, saved multiple hearth furnace, table is cold and bag collection system or direct substitution caustic washing system device; Because of having saved cold, independent alkali cleaning of most table and independent desulfurization process, a large amount of initial costs and land occupation have been practiced thrift.
2. functional diversities: directly remove F in the process of gathering dust -, Cl -, reclaim the low SO that measures 2, make the environment protection standard discharging.
3. index is advanced, particularly removes F -, Cl -Efficient is high: because flue dust contacts defluorinate chlorine reaction moment completion, fluorine removing rate 94.2%, dechlorination efficient 92.5%, sulfur removal effectiveness 88.5%, zinc recovery 98.9%, dust-collecting efficiency 99.78% down with spray liquid at high temperature (300~400 ℃).
4. energy-conserving and environment-protective:
(1) compares with multiple hearth furnace, saved powerful vacuum fan and the fuel that is used for material reaction; Compare with bag collection-alkali cleaning defluorinate chlorine system, saved the power consumption of Boiler Steam heating, alkali cleaning stirring and pressure-filtering process.
(2) owing to defluorinate chlorine effect moment completion, spray liquid can use repeatedly, practiced thrift water consumption greatly, water consumption is 1/5 of a conventional wet fluorine and chlorine removal water consumption, and fluorine-containing chloride wastewater can focus on.
(3) the impact type spraying gun can fully atomize spray liquid, has strengthened the capture effect of flue dust greatly, and the spray liquid usage quantity reduces 1/2.
(4) because the impact type spraying gun itself has suction function, thus the impact type of zinc oxide volatilization dirt atomizing foam wet dust collector device join the exhausting motor power (output) be reduced to original half the below, saved a large amount of electric energy.
5. can adapt to various Special Circumstances, use flexibly.This device is set to level Four series connection, wherein the 3rd, the main effect of the fourth stage normal operation that is when I and II breaks down, to keep whole device.
6. realize that spray liquid is uniformly distributed with.The impact type spraying gun can fully atomize spray liquid, has overcome because after shower nozzle partly stops up the shortcoming that spray liquid can't be realized being uniformly distributed with, collection efficiency is low.
7. practical.Composition through changing spray liquid or equipment done simple the modification, can be used for all smelting processes gather dust and tail gas absorbs.
8. convenient and simple for operation, do not need Special Training, and safety and sanitation, improved operating environment greatly.
9. can continuous production, work continuously, be easy to control automatically, can realize efficiently gathering dust, cooling, fluorine and chlorine removal and desulfurization integrated; Alleviate staff labor intensity simultaneously, improved production efficiency.
Description of drawings
Fig. 1 is the impact type atomizing foam wet dust collector apparatus structure synoptic diagram of zinc oxide volatilization dirt.
Fig. 2 is the structural representation of impact type spraying gun.
Among the figure: the 1-1# spray column; The 2-1# shower nozzle; 3-1# impact type spraying gun; 4-1# negative pressure baffle plate; The 5-2# spray column; The 6-2# shower nozzle; 7-2# impact type spraying gun; 8-3# impact type spraying gun; The 9-3# spray column; The 10-3# shower nozzle; The 11-4# shower nozzle; The 12-4# spray column; 13-4# impact type spraying gun; The 14-screen cloth; The 15-blower fan; The 16-blower fan is used motor; 17-slurries lift pump; The 18-pressure filter; 19-spray liquid lift pump; 20-slurries reception tank; The 21-over-pass; 22-slurries transition pond; 23-spray liquid/filtrating transition pond; The flabellum of 24-impact type spraying gun; The sector wheels of 25-impact type spraying gun; The phonomoter of 26-impact type spraying gun; 27-impact type spraying gun air duct; The 28-chimney; The import of 29-Reaktionsofen flue dust; 30-absorbs the rear slurry pipe; The 31-sludge outlet; The 32-filtrate output tube, 33-2# negative pressure baffle plate; 34-3# negative pressure baffle plate;
Embodiment
For the moist flue dust easy blocking cloth bag that exists in the cleaning dust arrester installation that overcomes existing volatilization zinc oxide, shorten cloth bag work-ing life shower nozzle be prone to that part is stopped up, atomizing effect is limited; Deficiencies such as liquid-gas ratio is still high, the spray liquid usage quantity is big, the applicant has designed the impact type atomizing foam wet dust collector device of the zinc oxide volatilization dirt of the utility model.Nucleus equipment in the dust arrester installation of the utility model is the impact type spraying gun; Its groundwork principle is: the flabellum that impact type spraying gun high speed is rotated is broken up spray liquid; Fully atomizing; Make it to mix with air-flow, dependence mainly be the inertial impaction between atomizing droplet and the grit, grit is captured.
The impact type atomizing foam wet dust collector device of the zinc oxide volatilization dirt of the utility model; The placed in-line spray column of level Four is arranged; Be respectively 1# vertical spray tower 1,2# Horizental showering tower 5,3# vertical spray tower 9 and 4# vertical spray tower 12,2# Horizental showering tower is installed between 1# vertical spray tower and the 3# vertical spray tower; Each spray column inside has been installed 1# shower nozzle 2,2# shower nozzle 6,3 # shower nozzle 10 and 4# shower nozzle 11 respectively, and 1# impact type spraying gun 3,2# impact type spraying gun 7,3# impact type spraying gun 8 and 4# impact type spraying gun 13 have been installed respectively simultaneously; Wherein be respectively equipped with negative pressure baffle plate 4, negative pressure baffle plate 33, negative pressure baffle plate 34 in 1# vertical spray tower 1,3# vertical spray tower 9 and the 4# vertical spray tower 12; The outlet of dust arrester installation is provided with sieve plate 14 and vacuum fan 15.
The impact type spraying gun is a cylinder-shaped device, and the two ends diameter of air duct 27 is greater than the centre, and the sector wheels 25 that are positioned at air duct 27 centers drive two groups of flabellums 24 and rotate, and flabellum 24 is concentric with air duct 27, and phonomoter 26 is located at outside the air duct.
The air duct housing of impact type spraying gun directly is welded in the spray column tower body, and is concentric with tower body.
In spray column, shower nozzle be arranged on the impact type spraying gun on/front end.
In the vertical spray tower, the negative pressure baffle plate is in the bottom of spray column, than slurries reception tank 20 pond faces eminence slightly; The spray column lower end is a hatch frame, in the slurries of the slurries reception tank 20 that submerges, form fluid-tight.
Slurries reception tank 20 and 22 in slurries transition pond are provided with over-pass 21.
The spray liquid composition is Na 2CO 3Solution.
The impact type atomizing foam wet dust collector device of the zinc oxide volatilization dirt of the utility model is designed to the level Four cascaded structure; Wherein the main effect of 3# vertical spray tower 9 and 4# vertical spray tower 12 is removed and is captured outside remaining few part flue dust the normal operation that most importantly keeps whole device at 1# vertical spray tower 1,2# Horizental showering tower 5 when breaking down.
Below be the principle of work of example explanation impact type spraying gun with 1# impact type spraying gun 3: after the phonomoter 26 of impact type spraying gun starts; Because the rotation rapidly of flabellum 24 can form local decompression in 1# impact type spraying gun 3 bottoms, flue dust and spray liquid are sucked in the 1# impact type spraying gun 3 by the 1# spray column; Because the variation of air duct 27 internal diameters; Air-flow is quickened by preliminary, and along with the vigorous stirring of 1# impact type spraying gun flabellum 24, spray liquid and flue dust air-flow are all by further acceleration and mixing; The spray liquid drop diminishes, is fully atomized, and has improved the trapping ability of soot dust granule greatly and has absorbed SO in the flue gas 2Ability; And, be in the F on liquid-solid border in the moment that soot dust granule contacts with drop -, Cl -Ion has been dissolved in the absorption liquid rapidly.
After blower fan 15 starts; Can form very high negative pressure in the whole spray column because the spray column lower openings submerges below 20 liquid levels of slurries pond, for fear of slurries by suck-back; In vertical 1# spray column 1,3 # spray column 9 and 4# spray column 12, be equipped with the negative pressure baffle plate, prevent the slurries suck-back.
In terminal screen cloth 14 main purposes that are provided with of dust arrester installation is that liquid gas separates, and not settled small droplets in the flue gas is finally caught, and realizes the dehydration of flue gas.
Over-pass 21 main effects in slurries reception tank 20 and 22 settings in slurries transition pond are height of slurries liquid level in the control slurries reception tank 20; When slurries lift pump 17 with slurries transition pond 22 in slurries when detaching; Be unlikely to have influence on the liquid level of slurries reception tank 20, cause liquid level to be crossed and low can't form fluid-tight.
The following operation process of the impact type atomizing foam wet dust collector device of the zinc oxide volatilization dirt of explanation the utility model: open blower fan with motor 16,1# impact type spraying gun 3,2# impact type spraying gun 7,3# impact type spraying gun 8 and 4# impact type spraying gun 13; Make whole device inside be in negative pressure state; The Reaktionsofen flue dust is inhaled into 1# spray column 1 from Reaktionsofen flue dust import 29; Contact in the same way with the spray liquid of 1# shower nozzle 2 ejections; Spray droplet and flue dust impact in 1# impact type spraying gun 3 and mix, and bigger on a small quantity soot dust granule has been captured; Part spray liquid is because centrifugation; Directly got rid of on the inwall of 1# spray column 1; Along the dirty formation liquid film of inwall; Another part spray liquid is further atomized by 1# impact type spraying gun 3 and since droplet size sharply reduce with the increase of speed, greatly to have strengthened to the short grained capture effect of flue dust; Behind the air duct 27 through 1# impact type spraying gun 3; It is big that the internal diameter of device becomes; The speed of drop descends to some extent; Drop has flow in the slurries reception tank 20 along negative pressure baffle plate 4 because action of gravity is deposited to 1# spray column 1 bottom after the bigger capture of part volume ratio, has accomplished capture, the SO of most flue dust 2Preliminary absorption and defluorinate chlorine.The less drop of the flue dust of collection at large and volume gets into 2# spray column 5; Similar with 1# spray column 1 mechanism; Capture rear slurry and get into reception tank 20 from 3# spray column 9 lower ends, the less drop of the flue dust of collection at large and volume is inhaled into 3# impact type spraying gun 8 from the bottom to top, air-flow and reverse contact of spray liquid that is sprayed by 3# shower nozzle 10; Spray liquid is directly broken up by 3# impact type spraying gun 8; Most of rear slurry that captures directly flows down 3# spray column 9 inwalls and gets into slurries reception tank 20, and flue dust that 3# spray column 9 and 4# spray column 12 capture and tiny drop receive stopping of the U-shaped structure that links to each other with 4# spray column 12 when arriving 3# spray column 9 tops; Air-flow turns to for 180 °, thereby makes gas-liquid realize the separation of part.The few part flue dust that gets into 4# spray column 12 at last contacts with spray liquid once more, repeats capture and absorption process in 1# spray column 1; 3# spray column 9 all flows into slurries reception tank 20 along negative pressure baffle plate 33 and negative pressure baffle plate 34 respectively with the drop that 4# spray column 12 captures.Since then, the capture of flue dust, SO 2Absorption and this completion of defluorinate chloro, flue dust, SO 2Almost all enter into slurries with the fluorine cl ions; Contain a large amount of steam in the flue gas and remove through the screen cloth 14 that is installed in the device outlet, current overfall liquid reception tank 20, flue gas can be directly from chimney 28 emptyings.When the slurries after absorbing are accumulated to full pond; Unlatching slurries lift pump 17 transports the absorption rear slurry in the slurries transition pond 22 to pressure filter 18 through absorption rear slurry pipe 30 and carries out solid-liquid separation; Filter residue directly send the leaching operation of producing electrolytic zinc from sludge outlet 31; Filtrating enters spray liquid/filtrating transition pond 23 through filtrate output tube 32; Again the pH that adds solute adjusting spray liquid is to target value, and spray liquid lift pump 19 is sent spray liquid back to 1# spray column 1,2# spray column 5,3# spray column 9 and 4# spray column 12, recycles.

Claims (6)

1. the impact type atomizing foam wet dust collector device of a zinc oxide volatilization dirt is characterized in that having the placed in-line spray column of level Four, is a 2# Horizental showering tower between 1# vertical spray tower and 3# vertical spray tower; Each spray column inside all is equipped with shower nozzle and impact type spraying gun, and 1# vertical spray tower, 3# vertical spray tower and 4# vertical spray tower are equipped with the negative pressure baffle plate; The outlet of dust arrester installation is provided with sieve plate and vacuum fan.
2. the impact type atomizing foam wet dust collector device of zinc oxide volatilization dirt as claimed in claim 1 is characterized in that the impact type spraying gun is a cylinder-shaped device, and flabellum and sector wheels are positioned at air duct, and phonomoter is located at outside the air duct; The air duct housing of impact type spraying gun directly is welded in the spray column tower body, and is concentric with tower body.
3. according to claim 1 or claim 2 the impact type atomizing foam wet dust collector device of zinc oxide volatilization dirt is characterized in that in spray column, shower nozzle be arranged on the impact type spraying gun on/front end.
4. the impact type atomizing foam wet dust collector device of zinc oxide as claimed in claim 3 volatilization dirt is characterized in that in the vertical spray tower, and the negative pressure baffle plate is in the bottom of spray column, than slurries reception tank pond face eminence slightly; The spray column lower end is a hatch frame, in the slurries of the slurries reception tank that submerges, form fluid-tight.
5. the impact type atomizing foam wet dust collector device of zinc oxide volatilization dirt as claimed in claim 4 is characterized in that being provided with over-pass between slurries reception tank and slurries transition pond.
6. the impact type atomizing foam wet dust collector device of zinc oxide volatilization dirt as claimed in claim 1 is characterized in that the spray liquid composition is Na 2CO 3Solution.
CN2011202327594U 2011-07-04 2011-07-04 Impact type atomized spray wet-process dust-collecting device for zinc oxide volatilized dust Expired - Fee Related CN202164342U (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104208966A (en) * 2014-08-15 2014-12-17 杭州中环化工设备有限公司 Technology for processing selenium-containing flue gas in alloy converting furnace
CN104630469A (en) * 2015-03-01 2015-05-20 云南驰宏锌锗股份有限公司 Method and device for jointly removing organic matters and magnesium ions in zinc sulfate solution
CN104988537A (en) * 2015-06-12 2015-10-21 江西金铂铼资源循环新技术有限公司 Wet process dust collecting and leaching electrodeposition integrated technology for zinc-contained solid waste disposal
CN110075694A (en) * 2019-05-30 2019-08-02 江苏新聚环保科技有限公司 Emission-control equipment
CN112938912A (en) * 2021-04-07 2021-06-11 浙江三美化工股份有限公司 Preparation method of lithium bis (fluorosulfonyl) imide
CN115287452A (en) * 2022-08-25 2022-11-04 上海逢石科技有限公司 Auxiliary cooling process for reducing calcine of high-temperature powdery iron ore

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104208966A (en) * 2014-08-15 2014-12-17 杭州中环化工设备有限公司 Technology for processing selenium-containing flue gas in alloy converting furnace
CN104208966B (en) * 2014-08-15 2016-01-20 杭州中环化工设备有限公司 Process alloy converting furnace is containing the technique of selenium flue gas
CN104630469A (en) * 2015-03-01 2015-05-20 云南驰宏锌锗股份有限公司 Method and device for jointly removing organic matters and magnesium ions in zinc sulfate solution
CN104988537A (en) * 2015-06-12 2015-10-21 江西金铂铼资源循环新技术有限公司 Wet process dust collecting and leaching electrodeposition integrated technology for zinc-contained solid waste disposal
CN104988537B (en) * 2015-06-12 2017-12-12 江西金铂铼资源循环新技术有限公司 The wet dust collector and leaching electrodeposition integral process of a kind of solidification disposal of waste containing zinc
CN110075694A (en) * 2019-05-30 2019-08-02 江苏新聚环保科技有限公司 Emission-control equipment
CN112938912A (en) * 2021-04-07 2021-06-11 浙江三美化工股份有限公司 Preparation method of lithium bis (fluorosulfonyl) imide
CN112938912B (en) * 2021-04-07 2022-06-03 浙江三美化工股份有限公司 Preparation method of lithium bis (fluorosulfonyl) imide
CN115287452A (en) * 2022-08-25 2022-11-04 上海逢石科技有限公司 Auxiliary cooling process for reducing calcine of high-temperature powdery iron ore

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