CN201454362U - Purification wet-process metallurgy waste gas leaching equipment - Google Patents
Purification wet-process metallurgy waste gas leaching equipment Download PDFInfo
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- CN201454362U CN201454362U CN2009201116688U CN200920111668U CN201454362U CN 201454362 U CN201454362 U CN 201454362U CN 2009201116688 U CN2009201116688 U CN 2009201116688U CN 200920111668 U CN200920111668 U CN 200920111668U CN 201454362 U CN201454362 U CN 201454362U
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Abstract
The utility model relates to purification wet-process metallurgy waste gas leaching equipment which belongs to the technical field of environment protective equipment, and comprises a spray tower, an overflow pipe, a circulating water pool and a circulating water pipe with a circulating water pump; in the spray tower, a waste gas inlet is arranged above a sprinkler head or at the same height of the sprinkler head and an exhaust port is arranged below the sprinkler head; the exhaust port is communicated with an exhaust pipe with a draft fan; a venturi is below the sprinkler head; the space below the venturi is a collecting tank; and the collecting tank is communicated with the water inlet of the circulating water pool through the overflow pipe. The leached waste gas moves in the same direction with the spray water in the spray tower and must be sprayed and washed by the venturi, and be fully covered, so as to greatly improve the purification effect of harmful component absorption; the spraying of the venturi produces negative pressure in the spray tower together with the draft fan, so that the leached waste gas is not easy to overflow out of a leaching tank and harm the operation of a worker; because the spraying moves in the same direction with the leached waste gas, the resistance is smaller compared with the prior equipment moving in the reverse direction, the power consumed by the draft fan is greatly reduced; and the spray tower can receive the leached waste gas of a plurality of the leaching tanks simultaneously.
Description
Technical field
The utility model is the used environmental protection equipment of hydrometallurgy.
Background technology
Is one of main means in the hydrometallurgy with acid or alkali leaching the raw mineral materials or the regenerative raw materials that contain various elemental compositions more than 60 ℃.Certainly lead to waste gas and water vapour in the leaching process.Traditional method is to add a cover (being generally conical lid) above leaching equipment, and is connected the nature discharging with the anti-corrosion chimney of exhaust or discharges with air-introduced machine.Though the waste gas and the water vapour amount that leach to produce are little, often contain acid mist, alkali mist and such as H
3As, H
2S, NO, NO
2Etc. harmful components or unpleasant gas, degradation manipulation environment, atmosphere pollution.Leaching more than 95 ℃, the waste gas generation increases, and still contains harmful ingredients after being condensed into drop.Particularly use nitric acid, hydrochloric acid, when ammoniacal liquor leached, the pernicious gas of generation was many, when chimney nature discharge capacity is not enough, and pernicious gas meeting overflow workshop, the harm workman is healthy.Adopt airtight pressurization leaching equipment, though workshop condition is necessarily improved, but still noxious gas emission is arranged, atmosphere pollution.
Discharge the pollution problem that brings to environment in order to solve nature, people use and purify the special equipment that leaches waste gas, its structure is seen Fig. 1: a spray column 1 top is provided with exhaust outlet 2, exhaust outlet 2 is communicated with the blast pipe 4 of band air-introduced machine 3, the shower nozzle 5 that is communicated with shower is established in spray column 1 interior exhaust outlet 2 belows, the exhaust gas inlet 6 of spray column 1 is established in shower nozzle 5 belows, spray column 1 by overflow pipe 7 is communicated with the water inlet of circulating water pool 8, the delivery port of circulating water pool 8 circulating water pipe 10 by being with water circulating pump 9 and spray column 1 interior shower is communicated with.During use, the waste gas in the leaching tanks 12 is introduced in the spray column 1 by exhaust gas inlet 6 by waste gas duct 11.The shortcoming of existing equipment: though waste gas and spray liquid are reverse movement, spray water mist can not cover fully has suffered spray column, thereby the waste gas purification degree is still limited.This equipment needs the above air-introduced machine of 7kw in addition, so spray water mist can produce with waste gas and depart from, and has reduced the waste gas purification effect, and the while has also increased energy consumption.Arrow is represented the flow direction of gas and liquid among Fig. 1.
The utility model content
The purpose of this utility model is to overcome the shortcoming of existing equipment, and a kind of equipment that hydrometallurgy leaches waste gas that purifies is provided, and its waste gas purification is effective, energy consumption is little.
The utility model equipment comprises the circulating water pipe of spray column, overflow pipe, circulating water pool, band water circulating pump, it is characterized in that: in the spray column in the shower nozzle top or equal height establish exhaust gas inlet and exhaust outlet is established in the below, exhaust outlet is communicated with the blast pipe of band air-introduced machine, the shower nozzle below is Venturi tube, 100～150 millimeters of the back cut diameters of Venturi tube, 60～80 millimeters of throat pipe diameter, 170～250 millimeters of lower port diameters, high 1200～1500 millimeters, the space of Venturi tube below is a collecting tank, and collecting tank is communicated with the water inlet of circulating water pool by overflow pipe.Preferably a Venturi tube is established in each shower nozzle below, and the quantity of Venturi tube is preferably 2～3.
During the utility model work, by waste gas duct the waste gas in the leaching tanks is introduced spray column by exhaust gas inlet, through spray with after passing Venturi tube, the waste water that enters collecting tank flows into circulating water pool by overflow pipe, return spray column again after sinking clearly, waste gas after the purification passes through emission by exhaust pipe because Venturi tube and the produced simultaneously suction function of air-introduced machine enter hydrops groove top.
The utlity model has following good effect: 1. leach waste gas and move in the same way and must cover fully by the Venturi tube spray washing with shower water in spray column, the clean-up effect that absorbs harmful components improves greatly; 2. Venturi tube spray and the air-introduced machine common negative pressure that produces in spray column makes leaching waste gas be difficult for overflowing leaching tanks harm workman operation; 3. because spray moves in the same way with leaching waste gas, and resistance is little than the existing equipment of reverse movement, air-introduced machine institute wasted work rate reduces greatly; 4. because negative pressure is big, resistance is little, spray column can receive the leaching waste gas of a plurality of leaching tanks simultaneously.
Description of drawings
Fig. 1 looks cross-sectional view for the master of existing equipment.
Fig. 2 looks cross-sectional view for the master of embodiment.
The specific embodiment
Embodiment: see Fig. 2.Establish exhaust gas inlet 19 in two anti-corrosion shower nozzle 13 tops in the spray column 14, exhaust outlet 15 is established in the below, exhaust outlet 15 is communicated with the blast pipe 17 of band 3KW air-introduced machine 16, a Venturi tube 18 is respectively established, 120 millimeters of the back cut diameters of Venturi tube 18,67 millimeters of throat pipe diameter, 220 millimeters of lower port diameters, high 1400 millimeters in each shower nozzle 13 below.The space of Venturi tube 18 belows is a collecting tank 20, and collecting tank 20 is communicated with the water inlet of circulating water pool 22 by overflow pipe 21.12 is leaching tanks, and 11 is waste gas duct, and arrow is represented the flow direction of gas and liquid.Used shower water is the above alkaline water of PH7,
Below be the use-case of present embodiment equipment:
Use-case 1: the sulfuric acid with 10～20% leaches under 85-95 ℃ of condition and contains Zn40～50%, Pb20～25%, and As 0.5%, the oxide powder and zinc of S 2.5%, extraction time 180 minutes.Leach waste gas and handle by embodiment device, the PH6.5 that scavenges, collecting tank PH1, As 2mg/l, in the circulating water pool lime and PH8-9, As 0.001mg/l.
Use-case 2: (120～150g/l) hydrochloric acid are at 90～95 ℃, and leaching contains In0.5～2%, and Pb 20%, Fe10%, Zn16%, the oxidation lead skim of As 0.1%, the eventually sour 50～60g/l of leaching, extraction time 150 minutes with 6～8N.Leach waste gas and handle by embodiment device, the leaching tanks surrounding space does not have obvious waste gas and overflows, blast pipe waste gas PH5.5-6.5, and below the collecting tank PH0.5, circulating water pool PH8..As0.001mg/l。
Use-case 3: the ammoniacal liquor with 30% leaches the carbonic acid zinc ore that contains Zn 25%, MgO10%, 60～65 ℃ of temperature, 120 minutes time.The leaching tanks surrounding space has little ammonia flavor, PH8-9, and blast pipe waste gas PH7～8, more than the collecting tank PH12, circulating water pool is with the dilute sulfuric acid PH6.5 that neutralizes.
Claims (3)
1. one kind purifies the equipment that hydrometallurgy leaches waste gas, comprise spray column, overflow pipe, circulating water pool, the circulating water pipe of band water circulating pump, it is characterized in that: in the spray column in the shower nozzle top or equal height establish exhaust gas inlet and exhaust outlet is established in the below, exhaust outlet is communicated with the blast pipe of band air-introduced machine, the shower nozzle below is a Venturi tube, 100～150 millimeters of the back cut diameters of Venturi tube, 60～80 millimeters of throat pipe diameter, 170～250 millimeters of lower port diameters, high 1200～1500 millimeters, the space of Venturi tube below is a collecting tank, and collecting tank is communicated with the water inlet of circulating water pool by overflow pipe.
2. as the said equipment of claim 1, it is characterized in that: a Venturi tube is established in each shower nozzle below.
3. as the said equipment of claim 2, it is characterized in that: the quantity of Venturi tube is 2～3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201116688U CN201454362U (en) | 2009-07-14 | 2009-07-14 | Purification wet-process metallurgy waste gas leaching equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201116688U CN201454362U (en) | 2009-07-14 | 2009-07-14 | Purification wet-process metallurgy waste gas leaching equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201454362U true CN201454362U (en) | 2010-05-12 |
Family
ID=42381706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201116688U Expired - Fee Related CN201454362U (en) | 2009-07-14 | 2009-07-14 | Purification wet-process metallurgy waste gas leaching equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201454362U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103566684A (en) * | 2013-10-23 | 2014-02-12 | 江苏晨力环保科技有限公司 | Processing system for combining and slurrying waste gas by using electrolytic manganese |
| CN111921306A (en) * | 2020-07-31 | 2020-11-13 | 常州多单微电子设备有限公司 | Oil smoke waste gas effluent disposal system |
-
2009
- 2009-07-14 CN CN2009201116688U patent/CN201454362U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103566684A (en) * | 2013-10-23 | 2014-02-12 | 江苏晨力环保科技有限公司 | Processing system for combining and slurrying waste gas by using electrolytic manganese |
| CN111921306A (en) * | 2020-07-31 | 2020-11-13 | 常州多单微电子设备有限公司 | Oil smoke waste gas effluent disposal system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100512 Termination date: 20180714 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |