CN103801185A - Metal flue gas processing and purifying system - Google Patents
Metal flue gas processing and purifying system Download PDFInfo
- Publication number
- CN103801185A CN103801185A CN201210441386.0A CN201210441386A CN103801185A CN 103801185 A CN103801185 A CN 103801185A CN 201210441386 A CN201210441386 A CN 201210441386A CN 103801185 A CN103801185 A CN 103801185A
- Authority
- CN
- China
- Prior art keywords
- tower
- pipeline
- condenser
- circulating slot
- spray absorber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Treating Waste Gases (AREA)
Abstract
The invention belongs to the field of flue gas purification, and provides a metal flue gas processing and purifying system used for controlling environmental pollution. The metal flue gas processing and purifying system comprises a condenser, a spray absorption tower, and a washing tower which are connected via pipelines; a plurality of spiral spray nozzles are arranged in the spray absorption tower; a first circulating groove is arranged outside the spray absorption tower; the first circulating groove is filled with a calcium hydrate solution; the lower part of the spray absorption tower is connected with a side part of the first circulating groove via a first pipeline; a pipeline communicated with the spiral spray nozzles is communicated with the side part of the first circulating groove via a second pipeline; the second pipeline is provided with a first circulating liquid pump; the top part of the spray absorption tower is connected with the washing tower via a third pipeline; the washing tower is provided with a filling material layer; a three-dimensional demister is arranged above the filling material layer; the top part of the washing tower is provided with a clean gas outlet, and clean gas can be discharged into aerosphere via a draught fan; a second circulating groove is arranged outside the washing tower; the second circulating groove is filled with a sodium hydroxide solution; a pipeline communicated with the three-dimensional demister is inserted into the second circulating groove via a fourth pipeline; and the fourth pipeline is provided with a second circulating liquid pump.
Description
Technical field
The present invention relates to filed of flue gas purification, relate in particular to a kind of metallic fume treatment and purification system, for the pollution that controls environment.
Background technology
Non-ferrous metal metallurgy smoke components complexity, pernicious gas is (as sulphur, chlorine, mercury, cadmium, aluminium or arsenic) flue gas, smoke components is slightly soluble in water, process high-temperature oxydation in smelting process, the high plug for outlet temperature of flue gas temperature is at 900 ℃, volatilization or other materials react to each other and enter atmosphere with gas carrier (air), they can swim in air the long period, or fall when rainfall, finally be deposited on plant or soil surface, absorbed by crops and the mankind, very big to human health risk, pollution on the environment is seemingly destructive, at China's non-ferrous metal metallurgy smoke processing system utmost point imperfection.
For the processing of non-ferrous metal metallurgy flue gas, the processing method of domestic frequent employing: 1. adopt NaOH
2secondary purification method, due to other material of the high reaction of temperature, there is the harmful substances such as mist dragon entrained particles in aiutage, after adopting charcoal absorption to purify, gold heavily belongs to element and is difficult to absorption, easily arrive saturated, cost is high.2. adopt the methods such as electron beam irradiation collimation method and impulse electric corona, exhaust gas volumn large, cannot be oxidized heavy metal composition, be difficult to purify requirement.
Summary of the invention
For solving the problems of the technologies described above, the invention provides that a kind of equipment is reliable, stable, operating cost low simple to operate, easy to maintenance, smelting non-ferrous metal class flue gas is applicable to the metallic fume treatment and purification system that uses.
Metallic fume treatment and purification system of the present invention, comprise the condenser linking together by pipeline, spray absorber tower and scrubbing tower, the bottom of described condenser is provided with cooling water inlet and coolant outlet, in condenser, be provided with coil pipe, gas approach is connected with one end of condenser, the other end of condenser is connected with spray absorber tower, in described spray absorber tower, be provided with multiple spiral nozzles, the outside of spray absorber tower is provided with the first circulating slot, in the first circulating slot, aqua calcis is housed, the lower end of spray absorber tower is communicated with the sidepiece of the first circulating slot by the first pipeline, the pipeline communicating with spiral nozzle is also communicated with the sidepiece of the first circulating slot by the second pipeline, the second pipeline is provided with the first recycle liquid pump, the top of described spray absorber tower is connected with described scrubbing tower by the 3rd pipeline, in described scrubbing tower, be provided with packing layer, the top of packing layer is provided with three-dimension type demister, the top of scrubbing tower is provided with clean gas floss hole, be discharged into atmosphere by fan action power, the outside of scrubbing tower is provided with the second circulating slot, in the second circulating slot, sodium hydroxide solution is housed, the pipeline communicating with three-dimension type demister extend in the second circulating slot by the 4th pipeline, the 4th pipeline is provided with the second recycle liquid pump.
Further, described condenser is shell-and-tube cooler, and flue gas is by transmitting outside temperature, coil pipe side and cooling water heat exchange in condenser coil, and temperature is controlled at 120 ℃;
Further, described spray absorber Ta Tanei wind speed is 1.2m/s, the sprinkle density 8-12m of spray absorber Ta Tanei
3/ m
2.h, the sprinkle density in scrubbing tower is 6-8m
3/ m
2.h.
Further, the concentration of described lime water is 20%, and to be controlled at 50 ℃, the concentration of caustic lye of soda be 10% to temperature in tower, and in tower, to be controlled at 30 ℃, the pH value of caustic lye of soda be 9-10 to temperature.
Further, described spray tower air inlet pipeline material is that carbon steel, spraying tower body are composite steel lining plastic or fiberglass, and scrubbing tower tower body material is fiberglass FRp.
Compared with prior art, beneficial effect of the present invention is: non-ferrous metal metallurgy smoke processing system of the present invention is reliable, stable through equipment, operating cost low simple to operate, easy to maintenance, to smelting non-ferrous metal class flue gas be applicable to use.
My company, in areas such as Chengdu, Sichuan, Chongqing, Yunnan, Shaanxi, processes result of use to non-ferrous metal flue gas good, detects data heavy metal 0.25mg/nm
3, SO
2isoconcentration 25mg/nm
3, air reaches secondary discharge standard.
Accompanying drawing explanation
Fig. 1 is the structural representation of metallic fume treatment and purification system of the present invention.
The specific embodiment
Below the specific embodiment of the present invention is described in further detail; Following examples are used for illustrating the present invention, but are not used for limiting the scope of the invention.
Shown in Figure 1, metallic fume treatment and purification system of the present invention, comprise the condenser 10 linking together by pipeline, spray absorber tower 20 and scrubbing tower 30, the bottom of described condenser 1 is provided with cooling water inlet 101 and coolant outlet 102, in condenser 10, be provided with coil pipe, gas approach is connected with one end of condenser 10, the other end of condenser 10 is connected with spray absorber tower 20, in described spray absorber tower 20, be provided with multiple spiral nozzles 201, the outside of spray absorber tower 20 is provided with the first circulating slot 40, in the first circulating slot 40, aqua calcis is housed, the lower end of spray absorber tower 20 is communicated with the sidepiece of the first circulating slot 40 by the first pipeline 50, the pipeline communicating with spiral nozzle is also communicated with the sidepiece of the first circulating slot 40 by the second pipeline 60, the second pipeline 60 is provided with the first recycle liquid pump 202, the top of described spray absorber tower 20 is connected with described scrubbing tower 30 by the 3rd pipeline 70, in described scrubbing tower 30, be provided with packing layer 301, the top of packing layer 301 is provided with three-dimension type demister 302, the top of scrubbing tower 30 is provided with clean gas floss hole 304, be discharged into atmosphere by fan action power, the outside of scrubbing tower 30 is provided with the second circulating slot 80, in the second circulating slot 80, sodium hydroxide solution is housed, the pipeline communicating with three-dimension type demister 302 extend in the second circulating slot 80 by the 4th pipeline 90, the 4th pipeline 90 is provided with the second recycle liquid pump 303.
In spray absorber tower 20 towers, wind speed is 1.2m/s, the sprinkle density 8-12m in spray absorber tower 20 towers
3/ m
2.h, temperature 50 C in tower, sprinkle density in scrubbing tower 30 are 6-8m
3/ m
2.h.In tower, 30 ℃ of temperature, tower internal pressure are negative 650Pa.
The concentration of lime water is 20%, and the concentration of caustic lye of soda is 10%, and the pH value of caustic lye of soda is 9-10.
Described spray tower air inlet pipeline material is that carbon steel, spraying tower body are composite steel lining plastic or fiberglass, and scrubbing tower 30 tower body materials are fiberglass FRp.
The course of work of metallic fume treatment and purification system of the present invention is as follows:
Combustion gas furnace inner outlet enters in gas skirt, exhanst gas outlet temperature has relation with gas skirt height, under blower fan driving effect, lower the temperature through shell-and-tube cooler, by transmitting in coil pipe, temperature, coil pipe side are outer is controlled at 120 ℃ with cooling water heat exchange, temperature to flue gas, and technological process is to spray tower, the interior wind speed 1.2m/s of spray tower tower, spray tower absorbent is the aqua calcis of concentration 20%, sprinkle density 8-12m
3/ m
2.h, flue gas effective temperature-reducing to 50 ℃ in spray tower, under blower fan driving effect, in tower, produce fine mist that negative pressure, nozzle produce make gas reach capacity hypersaturated state, fine mist and gas collisions effectively absorption heavy metal finely ground particle substance coalescence, become larger condensate and settle down, flue gas particle concentration 800mg/m
3be down to 40mg/m
3receive solid SS particle noxious material coagulating sedimentation slag in flue gas at lime white absorbent, with SO
2carry out neutralization reaction, temperature is in the time of 50 ℃, and it can improve the pH value of absorbent slurry, reduces liquid slurry viscosity, improves slurries working condition and atomizing effect.In fact be cured in invasion slag liquid, eliminated a large amount of harmful smokes, wet cleaning after a period of time, in circulation fluid calcium sulfate containing can be cumulative large, have that crystal is separated out, slag liquid after filtration, dewater, concentrate, pack buried or send water treatment station processing.
Preorder produces aerosol after aqua calcis is processed, and tail gas mist is carried the harmful SO of trace secretly after coagulation
2deng gas, adopt two stage treatment, be recycled to scrubbing tower, absorbent is 10% NaOH solvent, solution pH value is 9-10, and waste gas is pressed in scrubbing tower, and the sprinkle density in scrubbing tower is 6-8m
3/ m
2.h, temperature is controlled at 30 ℃, it can improve and in absorption reaction, scrubbing tower, take gas-liquid conversed upper absorption pattern processing, be liquid from tower top spray with vaporific (or little water droplet) downwards and under, the pressurization of scrubbing tower solution makes it to form in tower vaporific, with solvent NaOH in neutralization reaction, reach purification requirement, concentration is 20mg/m
3meet national qualified discharge.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the technology of the present invention principle; can also make some improvement and modification, these improve and modification also should be considered as protection scope of the present invention.
Claims (5)
1. a metallic fume treatment and purification system, it is characterized in that: comprise the condenser linking together by pipeline, spray absorber tower and scrubbing tower, the bottom of described condenser is provided with cooling water inlet and coolant outlet, in condenser, be provided with coil pipe, gas approach is connected with one end of condenser, the other end of condenser is connected with spray absorber tower, in described spray absorber tower, be provided with multiple spiral nozzles, the outside of spray absorber tower is provided with the first circulating slot, in the first circulating slot, aqua calcis is housed, the lower end of spray absorber tower is communicated with the sidepiece of the first circulating slot by the first pipeline, the pipeline communicating with spiral nozzle is also communicated with the sidepiece of the first circulating slot by the second pipeline, the second pipeline is provided with the first recycle liquid pump, the top of described spray absorber tower is connected with described scrubbing tower by the 3rd pipeline, in described scrubbing tower, be provided with packing layer, the top of packing layer is provided with three-dimension type demister, the top of scrubbing tower is provided with clean gas floss hole, the outside of scrubbing tower is provided with the second circulating slot, in the second circulating slot, sodium hydroxide solution is housed, the pipeline communicating with three-dimension type demister extend in the second circulating slot by the 4th pipeline, the 4th pipeline is provided with the second recycle liquid pump.
2. metallic fume treatment and purification system according to claim 1, is characterized in that: described condenser is shell-and-tube cooler, and flue gas is by transmitting temperature in condenser coil, and coil pipe side is outer to be exchanged with cooling water heat, and temperature is controlled at 120 ℃.
3. metallic fume treatment and purification system according to claim 1, is characterized in that: described spray absorber Ta Tanei wind speed is 1.2m/s, the sprinkle density 8-12m of spray absorber Ta Tanei
3/ m
2.h the sprinkle density that, temperature is controlled in 50 ℃, scrubbing tower in tower is 6-8m
3/ m
2.h, temperature is controlled at 30 ℃, tower internal pressure at negative 650Pa in tower.
4. metallic fume treatment and purification system according to claim 1, is characterized in that: the concentration of described lime water is 20%, and the concentration of caustic lye of soda is 10%, and the pH value of caustic lye of soda is 9-10.
5. metallic fume treatment and purification system according to claim 1, is characterized in that: described spray tower air inlet pipeline material is that carbon steel, spraying tower body are that composite steel lining plastic or fiberglass, scrubbing tower tower body material are fiberglass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210441386.0A CN103801185B (en) | 2012-11-08 | 2012-11-08 | Metallic fume treatment and purification system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210441386.0A CN103801185B (en) | 2012-11-08 | 2012-11-08 | Metallic fume treatment and purification system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103801185A true CN103801185A (en) | 2014-05-21 |
| CN103801185B CN103801185B (en) | 2016-12-21 |
Family
ID=50698863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210441386.0A Expired - Fee Related CN103801185B (en) | 2012-11-08 | 2012-11-08 | Metallic fume treatment and purification system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103801185B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106766964A (en) * | 2017-01-18 | 2017-05-31 | 绵阳易简环保科技有限公司 | Energy-saving metal electric melting furnace cleaner |
| CN109224799A (en) * | 2018-11-02 | 2019-01-18 | 辽宁新瑞碳材料科技有限公司 | A kind of purification system of high temperature furnace sulfur-containing tail gas |
| CN109224819A (en) * | 2018-11-02 | 2019-01-18 | 辽宁新瑞碳材料科技有限公司 | A kind of purification method of high temperature furnace sulfur-containing tail gas |
| CN109708481A (en) * | 2019-01-14 | 2019-05-03 | 王康 | A kind of efficient and environment-friendly type converter |
| CN112077275A (en) * | 2020-09-26 | 2020-12-15 | 李万生 | Die casting machine for machining |
| CN115608064A (en) * | 2022-10-09 | 2023-01-17 | 南昌大学 | A dust removal system and control method for preventing dust from sticking and clogging filter material |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3839849A (en) * | 1971-08-24 | 1974-10-08 | G Maniya | Wet type desulfurization system for flue gas |
| CN1165051A (en) * | 1997-02-25 | 1997-11-19 | 沈阳环境科学研究所 | High efficiency flue gas desulfurization technology |
| CN101485957A (en) * | 2009-01-08 | 2009-07-22 | 浙江大学 | Device and method of simultaneous desulfuration and denitration for flue gas using ozone oxygenation combined with double-tower washing |
| CN101653694A (en) * | 2008-08-22 | 2010-02-24 | 邱吉康 | High-efficiency desulfurizing and dedusting device and desulfurizing and dedusting method thereof |
| JP2011255370A (en) * | 2010-05-13 | 2011-12-22 | Toda Kogyo Corp | Wet type flue gas desulfurization apparatus using three-way spray nozzle |
| CN102698582A (en) * | 2012-05-30 | 2012-10-03 | 艾淑艳 | Ammonium bicarbonate desulfurization process and ammonium bicarbonate desulfurization process system |
-
2012
- 2012-11-08 CN CN201210441386.0A patent/CN103801185B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3839849A (en) * | 1971-08-24 | 1974-10-08 | G Maniya | Wet type desulfurization system for flue gas |
| CN1165051A (en) * | 1997-02-25 | 1997-11-19 | 沈阳环境科学研究所 | High efficiency flue gas desulfurization technology |
| CN101653694A (en) * | 2008-08-22 | 2010-02-24 | 邱吉康 | High-efficiency desulfurizing and dedusting device and desulfurizing and dedusting method thereof |
| CN101485957A (en) * | 2009-01-08 | 2009-07-22 | 浙江大学 | Device and method of simultaneous desulfuration and denitration for flue gas using ozone oxygenation combined with double-tower washing |
| JP2011255370A (en) * | 2010-05-13 | 2011-12-22 | Toda Kogyo Corp | Wet type flue gas desulfurization apparatus using three-way spray nozzle |
| CN102698582A (en) * | 2012-05-30 | 2012-10-03 | 艾淑艳 | Ammonium bicarbonate desulfurization process and ammonium bicarbonate desulfurization process system |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106766964A (en) * | 2017-01-18 | 2017-05-31 | 绵阳易简环保科技有限公司 | Energy-saving metal electric melting furnace cleaner |
| CN109224799A (en) * | 2018-11-02 | 2019-01-18 | 辽宁新瑞碳材料科技有限公司 | A kind of purification system of high temperature furnace sulfur-containing tail gas |
| CN109224819A (en) * | 2018-11-02 | 2019-01-18 | 辽宁新瑞碳材料科技有限公司 | A kind of purification method of high temperature furnace sulfur-containing tail gas |
| CN109708481A (en) * | 2019-01-14 | 2019-05-03 | 王康 | A kind of efficient and environment-friendly type converter |
| CN112077275A (en) * | 2020-09-26 | 2020-12-15 | 李万生 | Die casting machine for machining |
| CN115608064A (en) * | 2022-10-09 | 2023-01-17 | 南昌大学 | A dust removal system and control method for preventing dust from sticking and clogging filter material |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103801185B (en) | 2016-12-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110280125B (en) | A dry purification method for smelting flue gas containing arsenic and SO3 | |
| CN108970367A (en) | A kind of flue gas multiple pollutant cooperative control system and its receive hydraulic art | |
| CN103801185B (en) | Metallic fume treatment and purification system | |
| WO2016192273A1 (en) | Ozone-based flue gas treatment system and method | |
| WO2016192274A1 (en) | Flue gas treatment device and method | |
| CN201324593Y (en) | Wet ammonia flue gas desulphurization device | |
| CN103058435A (en) | Method for circularly processing hot boiler flue gas and desulfurization wastewater | |
| CN108671723A (en) | A kind of supersonic wave synchronism desulphurization and dust removal integrated device | |
| CN105536475B (en) | A kind of receipts arsenic technique of the flue gas during smelting containing sulfur trioxide | |
| CN107774082A (en) | A kind of method and device of flue gas desulfurization | |
| CN104096462A (en) | Novel technology for yellow phosphorus tail gas purification | |
| CN203437026U (en) | Fume purification system for garbage burning | |
| CN203944281U (en) | Flue gas desulfur device | |
| CN204973575U (en) | Garbage incineration flue gas purification system | |
| CN110465178B (en) | Flue gas desulfurization device | |
| CN114377535B (en) | Method and device for dedusting waste heat of boiler flue gas | |
| CN212523615U (en) | Water-saving and white-removing device for sulfur dioxide in zinc oxide removal flue gas | |
| CN205796820U (en) | A kind of desulfurating dust-removing equipment | |
| CN109351143A (en) | A kind of Industrial Boiler with can waste heat recycling Refining Equipmeut for Desulfuration in Gas | |
| CN208943818U (en) | A kind of zero water consume wet desulphurization device | |
| CN104803416B (en) | A method for collecting arsenic from flue gas containing arsenic | |
| CN103657375B (en) | Method and system for removing trace SO2 in tail gas by gas phase oxidation | |
| CN204073750U (en) | Multifunctional coal-fired flue purifier of boiler | |
| CN105268307B (en) | It is a kind of to carry out low concentration SO using alkaline waste liquor2The device and method of flue gas desulfurization | |
| CN202715331U (en) | Venturi washing dust catcher |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: JIANGSU JIASHIDA ENVIRONMENTAL PROTECTION ENGINEERING Co.,Ltd. Person in charge of patents Document name: payment instructions |
|
| DD01 | Delivery of document by public notice | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161221 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |