CN103868077A - Method and system for incinerating iodine-containing organic waste liquor, purifying and treating tail gas - Google Patents
Method and system for incinerating iodine-containing organic waste liquor, purifying and treating tail gas Download PDFInfo
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- CN103868077A CN103868077A CN201210530245.6A CN201210530245A CN103868077A CN 103868077 A CN103868077 A CN 103868077A CN 201210530245 A CN201210530245 A CN 201210530245A CN 103868077 A CN103868077 A CN 103868077A
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Abstract
The invention belongs to the technical field of organic waste liquor and specifically relates to a method for incinerating iodine-containing organic waste liquor, purifying and treating tail gas and a system thereof. The purpose of the invention is to disclose a method for harmlessly treating organic waste liquor and a system thereof, in order to reach the national emission standard. The technical solution of the invention is that the system for incinerating iodine-containing organic waste liquor, purifying and treating tail gas comprises a waste liquor incinerating system, an flue gas cooling system, a tail gas purifying system and a tail gas emission system, wherein the flue gas cooling system is arranged on the lower part of the waste liquor incinerating system and connected with the tail gas purifying system through an flue gas pipeline; the tail gas purifying system is connected with the tail gas emission system through the flue gas pipeline. The method and the system have the beneficial effects that efficiency is high, energy is saved, circulation solution evaporation is adopted to absorb heat so that the flue gas can be quickly cooled, and quenching spray liquor is recycled to save resources and energy in maximum. According to the tail gas purifying system, iodine from combustion flue gas is recycled so that the tail gas is environmentally friendly and emitted on standard.
Description
Technical field
The invention belongs to organic liquid waste processing technology field, be specifically related to a kind of containing iodine organic waste liquid burning and tail gas clean-up processing method and system.
Background technology
The so-called iodine organic liquid waste that contains refers to, the organic wastewater that contains iodine compound or iodide ion producing in chemical process, and this class waste liquid feature is that calorific value is high, COD is high, toxicity is large.If not treated direct discharge, this class waste liquid can cause very big harm to environment.
Conventional Physical, chemical method, biochemical process or oxidizing process, for this class waste liquid inapplicable.Biochemical treatment process is not ideal enough to this class liquid waste processing effect.Mostly there is stronger toxicity containing iodine waste liquid, can the growth of Microbial Communities in Activated Sludge even be survived and be threatened, directly affect treatment effect.It is economical not that deep oxidation method is processed this class waste liquid, because the consumption of oxidant increases along with the increase of pollutant levels, and the intermediate product producing in oxidizing process and oxidation product may cause larger harm to environment.
Burning method is processed organic liquid waste, simply efficient, at high temperature can realize organic exhaustive oxidation and decompose.For making flue gas realize qualified discharge, cooling, absorption equipment need to be set after incinerator, set up the cleaning system of tail gas.
In tail gas, I, under different Redox Conditions and pH value, can present different valence states.I-, in the aqueous solution, can oxidation by air generate I2 and gradual change yellow, and reaction is as shown in (formula 1):
4I-+O2+2H2O=2I2+4OH-(formula 1)
The I2 generating can not be in the aqueous solution in the time of pH>9.37 stable existence, will there is the disproportionated reaction as (formula 2):
3I2+6OH-=5I-+IO3-+3H2O (formula 2)
Exhaust gas purification system need to be considered the conversion characteristic of iodine between different valence state, realizes the purification to tail gas, also needs to consider in addition the etching characteristic of HI.
Summary of the invention
Objects of the present invention are, a kind of method and system of harmless treatment organic liquid waste are provided, and realize tail gas qualified discharge.
The technical solution adopted in the present invention is:
A kind of containing iodine organic waste liquid burning and tail gas clean-up treatment system, wherein, comprise liquid waste incineration system, flue-gas-cooling system, exhaust gas purification system and tail gas discharge system, wherein, liquid waste incineration system below is provided with flue-gas-cooling system, flue-gas-cooling system joins by flue gas pipeline and exhaust gas purification system, and exhaust gas purification system joins by flue gas pipeline and tail gas discharge system.
One as above is containing iodine organic waste liquid burning and tail gas clean-up treatment system, wherein, described liquid waste incineration system comprises waste liquid tank, waste drains pump, combustion fan, cooling blower and incinerator, wherein waste liquid tank is provided with waste drains pump, waste drains pump is connected with incinerator combustion chamber top board by waste liquid supply line, combustion fan is connected with incinerator combustion chamber top board by combustion air pipeline, and cooling blower is connected with incinerator temperature adjustment sidewall by cooling-air pipeline.
One as above is containing iodine organic waste liquid burning and tail gas clean-up treatment system, wherein, described flue-gas-cooling system comprises quench tower, recirculated cooling water watering pipeline, cooling water return pipeline, quench circulation liquid storage tank, quench circulation pump, wherein quench tower top is connected with incinerator, recirculated cooling water watering pipeline is connected with the tower body chuck of being located on quench tower with cooling water return pipeline, described quench tower is connected with quench circulation liquid storage tank and quench circulation pump by pipeline, between quench circulation liquid storage tank and quench circulation pump, be connected by pipeline.
One as above is containing iodine organic waste liquid burning and tail gas clean-up treatment system, wherein, described exhaust gas purification system comprises spray scrubber (11), Sprayer Circulation liquid storage tank (12), Sprayer Circulation pump (13), wherein, quench tower (6) outlet at bottom is connected with spray scrubber (11) sidewall gas approach by flue gas pipeline, Sprayer Circulation liquid storage tank (12) is connected with spray scrubber (11) by pipeline, Sprayer Circulation pump (13) is connected with spray scrubber (11) by pipeline, Sprayer Circulation liquid storage tank (12) is connected with Sprayer Circulation pump (13) by pipeline.
5. one according to claim 1 is containing iodine organic waste liquid burning and tail gas clean-up treatment system, it is characterized in that: described tail gas discharge system comprises air-introduced machine (14), chimney (15), wherein air-introduced machine (14) import goes out flue gas pipeline with spray scrubber (11) top and is connected, and air-introduced machine (14) outlet is connected with chimney (15).
6. one according to claim 1, containing iodine organic waste liquid burning and tail gas clean-up processing method, is characterized in that, comprises the steps:
Step 1, depositing in waste liquid tank (1) containing iodine organic liquid waste of producing from factory technics device is pending, and waste liquid is delivered to incinerator (5) top burner by waste drains pump (2); Combustion fan (3) provides combustion air to incinerator; Entering incinerator containing iodine organic liquid waste and combustion air from incinerator (5) top, is 1000 ~ 1200 ℃ by regulating combustion air volume control incinerator (5) combustion chamber interior reaction temperature; Flue gas enters incinerator 5 tempering rooms by incinerator (5) combustion chamber, and cooling blower 4 is to blending cooling-air in flue gas, and flue-gas temperature is down to below 400 ℃ at incinerator 5 afterbodys;
Step 2, the flue gas that step (1) produces enters quench tower (6), when the inherent driving of quench circulation liquid storage tank (9), injects industry water, and as quench circulation liquid, displacement in every 8 ~ 24 hours is once; Quench circulation liquid to the interior atomizing spray of quench tower (6), after contacting, flow back into quench circulation liquid storage tank (9) by quench circulation pump (10) with flue gas certainly; After the cooling of flue gas chilling, be down to below 70 ℃ in quench tower (6) outlet at bottom temperature;
Step 3, the flue gas that step (2) produces enters spray scrubber (11), when the inherent driving of Sprayer Circulation liquid storage tank (12), injects KOH weak solution, and as Sprayer Circulation liquid, displacement in every 15 ~ 30 days is once; Sprayer Circulation liquid to the interior atomizing spray of spray scrubber (11), after contacting, flow back into Sprayer Circulation liquid storage tank (12) by Sprayer Circulation pump (13) with flue gas certainly;
Step 4, through step (3) tail gas after treatment, by air-introduced machine (14), enters chimney (15) by spray scrubber (11), directly enters atmosphere.。
The invention has the beneficial effects as follows:
1. liquid waste incineration system of the present invention has realized containing the high-temperature oxydation of iodine organic liquid waste and having decomposed, and in the high-temperature flue gas of generation, organic iodine is all converted into inorganic iodine, so that follow-up exhaust gas purification system is realized the absorbing and removing to iodine in flue gas.
2. liquid waste incineration system of the present invention has realized the harmless treatment to high concentrated organic waste liquid, and does not need to use auxiliary fuel, is a kind of energy-efficient processing method;
3. flue-gas-cooling system of the present invention makes full use of circulation fluid evaporation endothermic, has realized the rapid cooling of flue gas, to recycling of chilling spray liquid, realizes the maximum saving to energy resource;
4. exhaust gas purification system of the present invention has been realized the recovery to iodine in combustion product gases, makes the discharge of tail gas environment protection standard;
5. the present invention is applicable to the harmless treatment containing iodine organic liquid waste that various chemical processes and relevant industries produce, and has overcome traditional wastewater processing method in the limitation containing in iodine organic liquid waste processing procedure, has that feasibility is strong, an environmental protection, the feature such as efficient.
Accompanying drawing explanation
Fig. 1 is containing iodine organic waste liquid burning and tail gas clean-up treatment system schematic diagram;
In figure: 1. waste liquid tank, 2. waste drains pump, 3. combustion fan, 4. cooling blower, 5. incinerator, 6. quench tower, 7. recirculated cooling water watering pipeline, 8. cooling water return pipeline, 9. quench circulation liquid storage tank, 10. quench circulation pump, 11. spray scrubbers, 12. Sprayer Circulation liquid storage tanks, 13. Sprayer Circulation pumps, 14. air-introduced machines, 15. chimneys.
The specific embodiment
Below in conjunction with drawings and Examples, one provided by the invention is introduced containing iodine organic waste liquid burning and tail gas clean-up treatment system:
As shown in Figure 1, a kind of containing iodine organic waste liquid burning and tail gas clean-up treatment system, it is characterized in that: comprise liquid waste incineration system, flue-gas-cooling system, exhaust gas purification system and tail gas discharge system, wherein, liquid waste incineration system below is provided with flue-gas-cooling system, flue-gas-cooling system joins by flue gas pipeline and exhaust gas purification system, and exhaust gas purification system joins by flue gas pipeline and tail gas discharge system.
One as above is containing iodine organic waste liquid burning and tail gas clean-up treatment system, described liquid waste incineration system comprises waste liquid tank 1, waste drains pump 2, combustion fan 3, cooling blower 4 and incinerator 5, wherein waste liquid tank 1 is provided with waste drains pump 2, waste drains pump 2 is connected with incinerator 5 combustion chamber top boards by waste liquid supply line, combustion fan 3 is connected with incinerator 5 combustion chamber top boards by combustion air pipeline, and cooling blower 4 is connected with incinerator 5 temperature adjustment sidewalls by cooling-air pipeline.
Described flue-gas-cooling system comprises quench tower 6, recirculated cooling water watering pipeline 7, cooling water return pipeline 8, quench circulation liquid storage tank 9, quench circulation pump 10, wherein quench tower 6 tops are connected with incinerator 5, recirculated cooling water watering pipeline 7 is connected with the tower body chuck of being located on quench tower 6 with cooling water return pipeline 8, described quench tower 6 is connected with quench circulation liquid storage tank 9 and quench circulation pump 10 by pipeline, between quench circulation liquid storage tank 9 and quench circulation pump 10, is connected by pipeline.
4. one according to claim 1 is containing iodine organic waste liquid burning and tail gas clean-up treatment system, it is characterized in that: described exhaust gas purification system comprises spray scrubber 11, Sprayer Circulation liquid storage tank 12, Sprayer Circulation pump 13, wherein, quench tower 6 outlet at bottoms are connected with spray scrubber 11 sidewall gas approach by flue gas pipeline, Sprayer Circulation liquid storage tank 12 is connected with spray scrubber 11 by pipeline, Sprayer Circulation pump 13 is connected with spray scrubber 11 by pipeline, and Sprayer Circulation liquid storage tank 12 is connected with Sprayer Circulation pump 13 by pipeline.
Described tail gas discharge system comprises air-introduced machine 14, chimney 15, and wherein air-introduced machine 14 imports go out flue gas pipeline with spray scrubber 11 tops and are connected, and air-introduced machine 14 outlets are connected with chimney 15.
A kind of containing iodine organic waste liquid burning and tail gas clean-up processing method, comprise the steps:
Step 1, depositing in waste liquid tank 1 containing iodine organic liquid waste of producing from factory technics device is pending, and waste liquid is delivered to incinerator 5 top burner by waste drains pump 2; Combustion fan 3 provides combustion air to incinerator; Entering incinerator containing iodine organic liquid waste and combustion air from incinerator 5 tops, is 1000 ~ 1200 ℃ by regulating combustion air volume control incinerator 5 combustion chamber interior reaction temperatures; Under oxygen existence condition, in waste liquid, organic matter high-temperature oxydation decomposes, and contains organic/inorganic substance KI in the flue gas of generation; Flue gas enters incinerator 5 tempering rooms by incinerator 5 combustion chambers, and cooling blower 4 is to blending cooling-air in flue gas, and flue-gas temperature is down to below 400 ℃ at incinerator 5 afterbodys;
Step 2, the flue gas that step 1 produces enters quench tower 6, when the 9 inherent driving of quench circulation liquid storage tank, injects industry water, and as quench circulation liquid, displacement in every 8 ~ 24 hours is once; Quench circulation liquid to the interior atomizing spray of quench tower 6, after contacting, flow back into quench circulation liquid storage tank 9 by quench circulation pump 10 with flue gas certainly; After the cooling of flue gas chilling, be down to below 70 ℃ in quench tower 6 outlet at bottom temperature; The heat that chilling is replaced is taken away by recirculated cooling water.In flue gas, part KI is dissolved to quench circulation liquid.
Step 3, the flue gas that step 2 produces enters spray scrubber 11, when the 12 inherent driving of Sprayer Circulation liquid storage tank, injects KOH weak solution, and as Sprayer Circulation liquid, displacement in every 15 ~ 30 days is once; Sprayer Circulation liquid to the interior atomizing spray of spray scrubber 11, after contacting, flow back into Sprayer Circulation liquid storage tank 12 by Sprayer Circulation pump 13 with flue gas certainly; In flue gas, remain whole KI and be dissolved to Sprayer Circulation liquid, keep pH value to be greater than 9, the I2 in Sprayer Circulation liquid cannot stable existence, generation disproportionated reaction, and iodine mainly exists with I-form.In the Sprayer Circulation liquid of displacement, do not contain organic pollution, can simple process, recycling or discharge.
Step 4, through step 3 tail gas after treatment, by air-introduced machine 14, enters chimney 15 by spray scrubber 11, directly enters atmosphere and meets GB16297-1996 " discharge standard of air pollutants ".
Claims (6)
1. one kind contains iodine organic waste liquid burning and tail gas clean-up treatment system, it is characterized in that: comprise liquid waste incineration system, flue-gas-cooling system, exhaust gas purification system and tail gas discharge system, wherein, liquid waste incineration system below is provided with flue-gas-cooling system, flue-gas-cooling system joins by flue gas pipeline and exhaust gas purification system, and exhaust gas purification system joins by flue gas pipeline and tail gas discharge system.
2. one according to claim 1 is containing iodine organic waste liquid burning and tail gas clean-up treatment system, it is characterized in that: described liquid waste incineration system comprises waste liquid tank (1), waste drains pump (2), combustion fan (3), cooling blower (4) and incinerator (5), wherein waste liquid tank (1) is provided with waste drains pump (2), waste drains pump (2) is connected with incinerator (5) combustion chamber top board by waste liquid supply line, combustion fan (3) is connected with incinerator (5) combustion chamber top board by combustion air pipeline, cooling blower (4) is connected with incinerator (5) temperature adjustment sidewall by cooling-air pipeline.
3. one according to claim 1 is containing iodine organic waste liquid burning and tail gas clean-up treatment system, it is characterized in that: described flue-gas-cooling system comprises quench tower (6), recirculated cooling water watering pipeline (7), cooling water return pipeline (8), quench circulation liquid storage tank (9), quench circulation pump (10), wherein quench tower (6) top is connected with incinerator (5), recirculated cooling water watering pipeline (7) is connected with the tower body chuck of being located on quench tower (6) with cooling water return pipeline (8), described quench tower (6) is connected with quench circulation liquid storage tank (9) and quench circulation pump (10) by pipeline, between quench circulation liquid storage tank (9) and quench circulation pump (10), be connected by pipeline.
4. one according to claim 1 is containing iodine organic waste liquid burning and tail gas clean-up treatment system, it is characterized in that: described exhaust gas purification system comprises spray scrubber (11), Sprayer Circulation liquid storage tank (12), Sprayer Circulation pump (13), wherein, quench tower (6) outlet at bottom is connected with spray scrubber (11) sidewall gas approach by flue gas pipeline, Sprayer Circulation liquid storage tank (12) is connected with spray scrubber (11) by pipeline, Sprayer Circulation pump (13) is connected with spray scrubber (11) by pipeline, Sprayer Circulation liquid storage tank (12) is connected with Sprayer Circulation pump (13) by pipeline.
5. one according to claim 1 is containing iodine organic waste liquid burning and tail gas clean-up treatment system, it is characterized in that: described tail gas discharge system comprises air-introduced machine (14), chimney (15), wherein air-introduced machine (14) import goes out flue gas pipeline with spray scrubber (11) top and is connected, and air-introduced machine (14) outlet is connected with chimney (15).
6. one according to claim 1, containing iodine organic waste liquid burning and tail gas clean-up processing method, is characterized in that, comprises the steps:
Step 1, depositing in waste liquid tank (1) containing iodine organic liquid waste of producing from factory technics device is pending, and waste liquid is delivered to incinerator (5) top burner by waste drains pump (2); Combustion fan (3) provides combustion air to incinerator; Entering incinerator containing iodine organic liquid waste and combustion air from incinerator (5) top, is 1000 ~ 1200 ℃ by regulating combustion air volume control incinerator (5) combustion chamber interior reaction temperature; Flue gas enters incinerator 5 tempering rooms by incinerator (5) combustion chamber, and cooling blower 4 is to blending cooling-air in flue gas, and flue-gas temperature is down to below 400 ℃ at incinerator 5 afterbodys;
Step 2, the flue gas that step (1) produces enters quench tower (6), when the inherent driving of quench circulation liquid storage tank (9), injects industry water, and as quench circulation liquid, displacement in every 8 ~ 24 hours is once; Quench circulation liquid to the interior atomizing spray of quench tower (6), after contacting, flow back into quench circulation liquid storage tank (9) by quench circulation pump (10) with flue gas certainly; After the cooling of flue gas chilling, be down to below 70 ℃ in quench tower (6) outlet at bottom temperature;
Step 3, the flue gas that step (2) produces enters spray scrubber (11), when the inherent driving of Sprayer Circulation liquid storage tank (12), injects KOH weak solution, and as Sprayer Circulation liquid, displacement in every 15 ~ 30 days is once; Sprayer Circulation liquid to the interior atomizing spray of spray scrubber (11), after contacting, flow back into Sprayer Circulation liquid storage tank (12) by Sprayer Circulation pump (13) with flue gas certainly;
Step 4, through step (3) tail gas after treatment, by air-introduced machine (14), enters chimney (15) by spray scrubber (11), directly enters atmosphere.
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| CN201210530245.6A CN103868077A (en) | 2012-12-10 | 2012-12-10 | Method and system for incinerating iodine-containing organic waste liquor, purifying and treating tail gas |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105387470A (en) * | 2015-11-30 | 2016-03-09 | 江苏立宇环境科技有限公司 | Precious metal recovery device for waste liquid incineration |
| CN105953239A (en) * | 2016-05-16 | 2016-09-21 | 北京航天动力研究所 | Stripping, evaporating, reducing, burning and quenching device and method for acrylic acid wastewater |
| CN106287752A (en) * | 2016-08-12 | 2017-01-04 | 北京煜境科技有限公司 | A kind of high-temperature roasting device and processing method thereof |
| CN106594760A (en) * | 2016-12-15 | 2017-04-26 | 中国船舶重工集团公司第七0五研究所 | Combustor suitable for waste liquid treatment |
| CN110906751A (en) * | 2019-12-05 | 2020-03-24 | 中冶华天南京工程技术有限公司 | Electric furnace flue gas quenching device |
| CN111076196A (en) * | 2019-12-27 | 2020-04-28 | 合肥恒力装备有限公司 | Fluorine-containing organic waste gas treatment and wastewater zero discharge system and method |
| CN112944371A (en) * | 2021-04-16 | 2021-06-11 | 重庆贯通生物科技有限公司 | Organic waste liquid harmless treatment method and treatment equipment |
| CN114383143A (en) * | 2021-11-30 | 2022-04-22 | 西安航天动力试验技术研究所 | Kerosene waste liquid burns and purification treatment system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110906751A (en) * | 2019-12-05 | 2020-03-24 | 中冶华天南京工程技术有限公司 | Electric furnace flue gas quenching device |
| CN111076196A (en) * | 2019-12-27 | 2020-04-28 | 合肥恒力装备有限公司 | Fluorine-containing organic waste gas treatment and wastewater zero discharge system and method |
| CN112944371A (en) * | 2021-04-16 | 2021-06-11 | 重庆贯通生物科技有限公司 | Organic waste liquid harmless treatment method and treatment equipment |
| CN114383143A (en) * | 2021-11-30 | 2022-04-22 | 西安航天动力试验技术研究所 | Kerosene waste liquid burns and purification treatment system |
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Application publication date: 20140618 |