CN103239968A - High-efficiency dry-method desulphurization, denitration and flue gas purification device - Google Patents
High-efficiency dry-method desulphurization, denitration and flue gas purification device Download PDFInfo
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- CN103239968A CN103239968A CN 201210026357 CN201210026357A CN103239968A CN 103239968 A CN103239968 A CN 103239968A CN 201210026357 CN201210026357 CN 201210026357 CN 201210026357 A CN201210026357 A CN 201210026357A CN 103239968 A CN103239968 A CN 103239968A
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Abstract
The invention discloses a High-efficiency dry-method desulphurization, denitration and flue gas purification device, which is composed of an upper adsorption reaction chamber 3, a lower adsorption reaction chamber 13, a flue gas upper collection chamber 7, a flue gas lower collection chamber 11 and a flue gas channel 1. By utilizing a principle that adsorbent active coke is capable of adsorbing and desorbing pollutants SO2 and NOx in flue gases, the active coke is used for dynamically adsorbing SO2 in the flue gas lower collection chamber, and dynamically adsorbing NOx in the flue gas upper collection chamber. For raising a denitration effect, a reaction device of denitration agent ammonia gas with flue gases with NOx is added, to obtain good desulphurization and denitration effects, wherein the desulphurization effect reaches more than 95%, and the denitration effect reaches more than 80%, thereby raising flue gas purifying quality. In the invention, the adsorbent active coke is regenerated by a heating regeneration technology, adsorptivity of regenerated active coke is recovered, and the adsorbent active coke can be repeatedly regenerated and recycled without secondary pollution.
Description
Technical field
The present invention and a kind of smoke eliminator, particularly a kind of smoke eliminator of realizing efficient dry desulfurization denitration simultaneously.
Background technology
Along with economic development and progress of social civilization,, environmental protection has been proposed more requirement, the environmental protection problem is to concern the key subjects of national economy.Existing desulphurization denitration technical point wet method and dry method two big classes, though there are many problems in the Wet technique comparative maturity, (1) water consumption is big, a large amount of waste water resources; (2) form secondary pollution, wet-treating is handled pollutants such as airborne sulphur, nitre in the treatment fluid, and contaminated liquid is without after-treatment, if directly discharging can cause secondary pollution; (3) processed sulfuric acid can not regeneration, causes the waste of industrial sulphuric acid resource.The dry desulfurization denitration, though solved many shortcomings of wet desulphurization denitration, but still be in the exploratory stage in China, more existing producers are with dry desulfurization denitration one processing simultaneously, consequently desulfurized effect still can, the denitration effect deficiency also has certain gap apart from solving the desulphurization denitration problem comprehensively, simultaneously.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, a kind of efficient dry desulfurization denitration waste gas purification apparatus is provided, can reach good desulfurization and denitration effect simultaneously.
The technical solution adopted for the present invention to solve the technical problems is as follows:
A kind of efficient dry desulfurization denitration waste gas purification apparatus is made up of flue gas collection chamber, adsorption reaction chamber and exhaust gases passes.Described flue gas collection chamber is made up of collection chamber and flue gas next part chamber on the flue gas, on the flue gas both sides of collection chamber and flue gas next part chamber through the smoke filtration screen with about the adsorption reaction chamber be communicated with, the opposite side of collection chamber is provided with flue gas discharge opening on the flue gas, the bottom is provided with collection chamber clean-out door on the flue gas, the opposite side of flue gas next part chamber is provided with the flue gas inlet port, and the bottom is provided with flue gas next part chamber clean-out door.Described adsorption reaction chamber is made up of last adsorption reaction chamber and following adsorption reaction chamber, a last adsorption reaction chamber side relative with flue gas collection chamber with following adsorption reaction chamber is communicated with exhaust gases passes through the smoke filtration screen, the top of last adsorption reaction chamber is provided with adsorbent intake channel and electric control valve, the bottom of last adsorption reaction chamber goes out stand in channel with following adsorption reaction chamber by adsorbent and is communicated with, and the bottom of following adsorption reaction chamber is provided with adsorbent passing away and electric control valve.One side of described exhaust gases passes is communicated with the adsorption reaction chamber through the smoke filtration screen, and the top is provided with denitrfying agent input and air jet system, and the bottom is provided with the exhaust gases passes clean-out door.
Described smoke filtration screen is made up of framework and filter plate, and the installation of filter plate is directive, has both guaranteed that flue gas passes through smoothly, guarantees that again activated coke do not leak down.
Described adsorbent is activated coke.
Described denitrfying agent is ammonia.
The operation principle of the efficient dry desulfurization denitration of the present invention waste gas purification apparatus is: activated coke goes out under the control of stand in channel at electric control valve and adsorbent, enters adsorption reaction chamber and following adsorption reaction chamber from the adsorbent intake channel.Flue gas enters flue gas next part chamber from the flue gas inlet port, passes the following adsorption reaction chamber that the smoke filtration screen enters the left and right sides, the SO in the flue gas
2Adsorbed by activated coke, finish desulfurization.Flue gas continues to scurry the exhaust gases passes that the smoke filtration screen enters both sides, with the input of denitrfying agent ammonia and air jet system ejection ammonia hybrid reaction, form denitration gas, the denitration gas of this moment enters the adsorption reaction chamber by the smoke filtration screen, adsorbed by the activated coke in the last adsorption chamber, remove the nitre in the flue gas, remove flue gas behind the nitre and pass the smoke filtration screen and enter and collect the chamber on the flue gas, discharge from flue gas discharge opening.Activated coke goes out under the control of stand in channel at electric control valve and adsorbent, import from last adsorption reaction chamber dynamically, from adsorption reaction chamber discharge down, the activated coke of discharging enters into regenerating tank through conveyance conduit and carries out hot reactivation technology, its adsorptivity of activated coke after the regeneration is restored, and can repeat regeneration cycle and use.Be respectively equipped with flue gas collection chamber clean-out door, flue gas next part chamber clean-out door and exhaust gases passes clean-out door, the deposit of easy cleaning collection chamber and passage in flue gas upper and lower collection chamber and exhaust gases passes.
Beneficial effect of the present invention
1, the present invention utilizes adsorbent activity Jiao to the pollutant SO in the flue gas
2, NOx can adsorb and the principle of desorption, has designed efficient dry desulfurization denitration waste gas purification apparatus, make adsorbent activity Jiao in dynamically respectively at flue gas next part chamber absorption SO
2, in flue gas collection chamber NOx adsorption, be to improve denitration effect, increased the denitrfying agent ammonia with the reaction unit that contains the NOx flue gas, make desulphurization denitration all obtain good effect, desulfurized effect reaches more than 95%, and denitration effect reaches more than 80%, has improved the quality of gas cleaning.
2, desulphurization denitration adsorbent of the present invention adopts activated coke, and activated coke is that carbon back is granular, has high strength, non-caked, renewable, advantage such as raw material is extensive, to the pollutant SO in the flue gas
2, NOx and other heavy metal have very strong adsorptivity.Adsorbent activity Jiao that discharge the absorption back enters into regenerating tank through conveyance conduit, and through hot reactivation technology, its adsorptivity of the activated coke after the regeneration is restored, and can repeat regeneration cycle and use, and does not cause secondary pollution.
Description of drawings
Fig. 1 is the structural representation of efficient dry desulfurization denitration waste gas purification apparatus.
Fig. 2 is the cut-away view of Fig. 1.
Indicate among the figure: 1, exhaust gases passes, 2, the smoke filtration screen, 3, go up the adsorption reaction chamber, 4, ammonia input and air jet system, 5, electric control valve, 6, the adsorbent admission passage, 7, collect the chamber on the flue gas, 8, flue gas discharge opening, 9, collection chamber clean-out door on the flue gas, 10, flue gas inlet port, 11, flue gas next part chamber, 12, the exhaust gases passes clean-out door, 13, following adsorption reaction chamber, 14, adsorbent passing away, 15, flue gas next part chamber clean-out door, 16, adsorbent goes out stand in channel.
The specific embodiment
Below in conjunction with accompanying drawing efficient dry desulfurization denitration waste gas purification apparatus of the present invention is described further.
Efficient dry desulfurization denitration waste gas purification apparatus of the present invention is made up of collection chamber 7, flue gas next part chamber 11 and exhaust gases passes 1 on last adsorption reaction chamber 3, following adsorption reaction chamber 13, the flue gas.One side of last adsorption reaction chamber 3 and following adsorption reaction chamber 13 collects chamber 7 and flue gas next part chamber 11 on smoke filtration screen 2 and flue gas a side is communicated with, the opposite side of last adsorption reaction chamber 3 and following adsorption reaction chamber 13 is communicated with exhaust gases passes 1 through smoke filtration screen 2, the top of last adsorption reaction chamber 3 is provided with adsorbent intake channel 6 and electric control valve 5, the bottom of last adsorption reaction chamber 3 goes out stand in channel 16 with following adsorption reaction chamber 13 by adsorbent and is communicated with, and the bottom of following adsorption reaction chamber 13 is provided with adsorbent passing away 14 and electric control valve 5.A side of collection chamber 7 is provided with flue gas discharge opening 8 on the flue gas, and the bottom is provided with collection chamber clean-out door 9 on the flue gas, and a side of flue gas next part chamber 11 is provided with flue gas inlet port 10, and the bottom is provided with flue gas next part chamber clean-out door 15.The top of exhaust gases passes 1 is provided with ammonia input and air jet system 4, and the bottom is provided with exhaust gases passes clean-out door 12.Smoke filtration screen 2 is made up of framework and filter plate, and the installation of filter plate is directive, has both guaranteed that flue gas passes through smoothly, guarantees that again activated coke do not leak down.Adsorbent is activated coke.
During work, activated coke goes out under the control of stand in channel 16 at electric control valve 5 and adsorbent, enter adsorption reaction chamber 3 and following adsorption reaction chamber 13 from adsorbent intake channel 6, last adsorption reaction chamber 3 and following adsorption reaction chamber 13 in Fig. 1 be two parallel connections, four reative cells independently up and down, in practical operation, can make a plurality of reative cells in parallel according to the design of actual size needs.Flue gas enters flue gas next part chamber 11 from flue gas inlet port 10, passes the following adsorption reaction chamber 13 that smoke filtration screen 2 enters both sides, passes the activated coke in the vertical drop adsorption reaction chamber 3, at this moment the SO in the flue gas
2Adsorbed by activated coke, finish desulfurization.Flue gas continues across the exhaust gases passes 1 that smoke filtration screen 2 enters both sides, many ammonia inputs and air jet system 4 are housed in exhaust gases passes 1, from this device, spray ammonia, with the flue gas hybrid reaction in the passage, form denitration gas, the denitration gas of this moment enters adsorption reaction chamber 3 by smoke filtration screen 2, by the absorption of the activated coke in the last adsorption chamber, removes the nitre in the flue gas.Remove flue gas behind the nitre and pass smoke filtration screen 2 and enter collection chamber 7 on the flue gas, enter chimney from flue gas discharge opening 8.Activated coke after saturated through absorption is discharged from adsorbent passing away 14, and the activated coke of discharge enters into regenerating tank through conveyance conduit and carries out hot reactivation technology, and its adsorptivity of the activated coke after the regeneration is restored, and can repeat regeneration cycle and use.Be respectively equipped with flue gas collection chamber clean-out door 9, flue gas next part chamber clean-out door 15 and exhaust gases passes clean-out door 12, the deposit of easy cleaning collection chamber and passage in flue gas upper and lower collection chamber and exhaust gases passes 1.
The activated coke absorption affinity of the following adsorption reaction chamber 13 of the activated coke of last adsorption reaction chamber 3 of the present invention is strong, in actual use, according to the content of discharging with flue gas of stressing of desulphurization denitration, gas approach 10 and exhanst gas outlet 8 can be exchanged use, to obtain satisfactory result.
Claims (6)
1. efficient dry desulfurization denitration waste gas purification apparatus, it is characterized in that, by flue gas collection chamber, adsorption reaction chamber and exhaust gases passes are formed, described flue gas collection chamber is by collecting chamber (7) on the flue gas and flue gas next part chamber (11) is formed, the both sides that collect chamber (7) and flue gas next part chamber (11) on the flue gas through smoke filtration screen (2) with about the adsorption reaction chamber be communicated with, the opposite side that collects chamber (7) on the flue gas is provided with flue gas discharge opening (8), the opposite side of flue gas next part chamber (11) is provided with flue gas inlet port (10), described adsorption reaction chamber is made up of last adsorption reaction chamber (3) and following adsorption reaction chamber (13), last adsorption reaction chamber (a 3) side relative with flue gas collection chamber with following adsorption reaction chamber (13) is communicated with exhaust gases passes (1) through smoke filtration screen (2), the top of last adsorption reaction chamber (3) is provided with adsorbent intake channel (6) and electric control valve (5), the bottom of last adsorption reaction chamber (3) goes out stand in channel (16) with following adsorption reaction chamber (13) by adsorbent and is communicated with, the bottom of following adsorption reaction chamber (13) is provided with adsorbent passing away (14) and electric control valve (5), one side of described exhaust gases passes (1) is communicated with the adsorption reaction chamber through smoke filtration screen (2), and the top is provided with denitrfying agent input and air jet system (4).
2. efficient dry desulfurization denitration waste gas purification apparatus according to claim 1 is characterized in that described smoke filtration screen (2) is made up of framework and filter plate, and the setting of filter plate has above-below direction.
3. efficient dry desulfurization denitration waste gas purification apparatus according to claim 1 is characterized in that, the bottom that collects chamber (7) on the described flue gas is provided with collection chamber clean-out door (9) on the flue gas.
4. efficient dry desulfurization denitration waste gas purification apparatus according to claim 1 is characterized in that the bottom of described flue gas next part chamber (11) is provided with flue gas next part chamber clean-out door (15).
5. efficient dry desulfurization denitration waste gas purification apparatus according to claim 1 is characterized in that described adsorbent is activated coke.
6. efficient dry desulfurization denitration waste gas purification apparatus according to claim 1 is characterized in that described denitrfying agent is ammonia.
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| CN 201210026357 CN103239968A (en) | 2012-02-07 | 2012-02-07 | High-efficiency dry-method desulphurization, denitration and flue gas purification device |
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| CN 201210026357 CN103239968A (en) | 2012-02-07 | 2012-02-07 | High-efficiency dry-method desulphurization, denitration and flue gas purification device |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104548809A (en) * | 2014-12-11 | 2015-04-29 | 南京工业大学 | Active coke desulfurization and denitrification and membrane separation dust removal integrated system and treatment method |
| CN106039926A (en) * | 2016-07-18 | 2016-10-26 | 重集团大连工程建设有限公司 | Flue gas low-resistance desulfurization and denitrification device and desulfurization and denitrification method |
| CN107469600A (en) * | 2017-09-27 | 2017-12-15 | 重集团大连工程建设有限公司 | A kind of composite bed purifying column |
| CN108607346A (en) * | 2018-05-21 | 2018-10-02 | 中冶华天工程技术有限公司 | Parallel active coke dry-method desulfuration denitrating system |
| CN111495138A (en) * | 2020-04-26 | 2020-08-07 | 安徽顺达环保科技股份有限公司 | Desulfurization and denitrification equipment and process capable of circularly accelerating flue gas cracking catalysis |
| CN111569650A (en) * | 2020-06-03 | 2020-08-25 | 中冶焦耐(大连)工程技术有限公司 | Active coke desulfurization and denitrification flue gas purification, adsorption and desorption integrated device and method |
| CN112812857A (en) * | 2021-03-10 | 2021-05-18 | 中冶华天南京工程技术有限公司 | Novel horizontal desulfurizing tower of blast furnace gas dry process |
| CN113477027A (en) * | 2021-08-04 | 2021-10-08 | 中冶赛迪技术研究中心有限公司 | Integrated device and method for desulfurization, adsorption, regeneration, cooling and recovery of blast furnace gas |
-
2012
- 2012-02-07 CN CN 201210026357 patent/CN103239968A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104548809A (en) * | 2014-12-11 | 2015-04-29 | 南京工业大学 | Active coke desulfurization and denitrification and membrane separation dust removal integrated system and treatment method |
| CN106039926A (en) * | 2016-07-18 | 2016-10-26 | 重集团大连工程建设有限公司 | Flue gas low-resistance desulfurization and denitrification device and desulfurization and denitrification method |
| CN107469600A (en) * | 2017-09-27 | 2017-12-15 | 重集团大连工程建设有限公司 | A kind of composite bed purifying column |
| CN108607346A (en) * | 2018-05-21 | 2018-10-02 | 中冶华天工程技术有限公司 | Parallel active coke dry-method desulfuration denitrating system |
| CN111495138A (en) * | 2020-04-26 | 2020-08-07 | 安徽顺达环保科技股份有限公司 | Desulfurization and denitrification equipment and process capable of circularly accelerating flue gas cracking catalysis |
| CN111495138B (en) * | 2020-04-26 | 2022-05-06 | 安徽顺达环保科技股份有限公司 | Desulfurization and denitrification equipment and process capable of circularly accelerating flue gas cracking catalysis |
| CN111569650A (en) * | 2020-06-03 | 2020-08-25 | 中冶焦耐(大连)工程技术有限公司 | Active coke desulfurization and denitrification flue gas purification, adsorption and desorption integrated device and method |
| CN112812857A (en) * | 2021-03-10 | 2021-05-18 | 中冶华天南京工程技术有限公司 | Novel horizontal desulfurizing tower of blast furnace gas dry process |
| CN113477027A (en) * | 2021-08-04 | 2021-10-08 | 中冶赛迪技术研究中心有限公司 | Integrated device and method for desulfurization, adsorption, regeneration, cooling and recovery of blast furnace gas |
| CN113477027B (en) * | 2021-08-04 | 2023-01-31 | 中冶赛迪技术研究中心有限公司 | Integrated device and method for desulfurization, adsorption, regeneration, cooling and recovery of blast furnace gas |
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Application publication date: 20130814 |