CN102824809B - Adsorption tower - Google Patents
Adsorption tower Download PDFInfo
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- CN102824809B CN102824809B CN201210355168.5A CN201210355168A CN102824809B CN 102824809 B CN102824809 B CN 102824809B CN 201210355168 A CN201210355168 A CN 201210355168A CN 102824809 B CN102824809 B CN 102824809B
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Abstract
The invention provides an adsorption tower, comprising a feeding bin and a tower body communicated with the feeding bin by virtue of a distributor pipe, wherein the inner cavity of the tower body is provided with an air inlet chamber, an air outlet chamber as well as a desulphurization chamber and a denitration chamber which are arranged between the air inlet chamber and the air outlet chamber and are communicated; the desulphurization chamber is communicated with the air inlet chamber by virtue of an inlet blind window; and the desulphurization chamber is communicated with the air outlet chamber by virtue of an outlet grid. The adsorption tower also comprises an ammonia introducing channel which is arranged at the air inlet side of the desulphurization chamber, wherein the spray hole of the ammonia introducing channel faces toward the direction of the air outlet chamber. The adsorption tower disclosed by the invention guarantees desulphurization and denitration, consumption of ammonia is reduced, and cost of desulphurization and denitration is further reduced.
Description
Technical field
The present invention relates to active carbon desulfurization technical field, more particularly, relate to a kind of adsorption tower realizing desulfurization and denitrification integral.
Background technology
In order to solve metallurgy sintered pelletizing smoke pollution problem and the efficiency utilization realizing resource, and then promote environmental protection economical society and social sustainable development, adopting active carbon to carry out process to flue gas is one of current state-of-the-art settling mode.
Active carbon flue gases purification is using active carbon as catalyst, removes the pernicious gases such as S02, the NOx in flue gas, and then reduces flue gas to the pollution of air, realizes the recycling of sulphur simultaneously.Process for purifying mainly comprises sulphur absorption, thiolysis is analysed and sulfur recovery three processing procedures.Concrete technology is as follows: flue gas enters adsorption tower through booster fan, harmful components in adsorption tower in flue gas issue raw physical-chemical reaction in the effect of active carbon, the sulfate adsorption of dust, bioxin and generation is in the hole of active carbon, NOx resolves into harmless N2, finally achieves removing of the pernicious gas such as S02, NOx in flue gas.
We know that the absorption of active carbon to harmful substance has certain saturation degree, adsorb saturated after active carbon discharge bottom adsorption tower, the top of Analytic Tower is transported to through conveyer, Analytic Tower is injected by the top of Analytic Tower, in Analytic Tower, the harmful substance of charcoal absorption is at high temperature decomposed, high concentration SO 2 gas is released to be recycled, and recaptures active active carbon and discharged by the bottom of Analytic Tower and after vibratory sieve removing fine particle, be transported to adsorption tower top by conveyer refill in adsorption tower and recycle.
Please refer to accompanying drawing 1, the figure shows the structure of the adsorption tower of a kind of desulphurization denitration of prior art.This equipment is in the process of work, flue gas enters two adsorption towers 02 of series connection mutually, active carbon 03 enters in adsorption tower 02 by charging gear 01, after flue gas sloughs sulphur by first adsorption tower, pass in second adsorption tower again, the pipe of logical ammonia is provided with between two adsorption towers, flue gas after ammonia mixing desulfurization enters into the second adsorption tower and carries out denitration to flue gas, the active carbon realizing desulphurization denitration is discharged through drawing mechanism 04, but need in the desulphurization denitration process of this kind of mode to set up two adsorption towers, increase taking up room of equipment, two tower bodies are set simultaneously and add production cost.
In order to solve the problem, please refer to accompanying drawing 2, the figure shows another kind of adsorption tower structure of the prior art, active carbon 003 enters in the tower body 002 of adsorption tower by charging gear 001, while passing into flue gas to adsorption tower, also pass into ammonia in the course of work, realize desulphurization denitration and carry out simultaneously, final active carbon is by drawing mechanism 004, this kind of adsorption tower reduces cost, taking up room of the equipment simultaneously reduced.But passing in the process of ammonia and flue gas in adsorption tower, ammonia can react with the oxysulfide in flue gas, finally causes consuming a large amount of ammonias, result in desulphurization denitration process and consume a large amount of ammonias, and then improve the cost of desulphurization denitration.
In sum, the flue gas carrying out while how solving existing desulphurization denitration causing, to a large amount of consumption problem of ammonia, is current those skilled in the art's problem demanding prompt solution.
Summary of the invention
In view of this, the invention provides a kind of adsorption tower, reduce the consumption of ammonia while ensure that single tower desulphurization denitration, and then reduce the cost of desulphurization denitration.
In order to achieve the above object, the invention provides following technical scheme:
A kind of adsorption tower, comprise tower body, wherein: described tower body inner chamber has inlet plenum and discharge chamber and is positioned between the two, and the desulfurization chamber communicated and denitration chamber, described desulfurization chamber is connected with described inlet plenum by entrance shutter, described denitration chamber is connected with described discharge chamber by outlet grid, and this adsorption tower also comprises the logical ammonia pipeline of the air inlet side being arranged on described denitration chamber, and the fumarole of described logical ammonia pipeline is towards the direction of described discharge chamber.
Preferably, in above-mentioned adsorption tower, described inlet plenum is positioned at the center of described tower body, and described desulfurization chamber and denitration chamber are two, and is all arranged symmetrically in the both sides of described inlet plenum.
Preferably, in above-mentioned adsorption tower, described desulfurization chamber is at least divided into along the multilayer active carbon desulfurization layer on flue gas direction by apertured partition, and described denitration chamber is also at least divided into along the multilayer active carbon denitration layer on flue gas direction by apertured partition.
Preferably, in above-mentioned adsorption tower, the quantity of described active carbon desulfurization layer is 2 layers or 3 layers, and the quantity of described active carbon denitration layer is 2 layers or 3 layers.
Preferably, in above-mentioned adsorption tower, described tower body has two charging apertures, and is distributed in the both sides of described inlet plenum respectively; Described tower body has two discharging taper buckets, be respectively the first discharging taper bucket and the second discharging taper bucket, described first discharging taper bucket is communicated with the desulfurization chamber of described inlet plenum both sides, described second discharging taper bucket is communicated with the denitration chamber of inlet plenum both sides, and the discharging opening of described first discharging taper bucket and the second discharging taper bucket is provided with the adjustable material roller of rotating speed.
Preferably, in above-mentioned adsorption tower, also comprise the feed hopper by distributor pipe and described tower body intracavity inter-connection.
Preferably, in above-mentioned adsorption tower, described feed hopper comprises warehouse and the first conical flow guiding block relative with the charging aperture of described warehouse, the inwall of described warehouse is provided with many chutes extended spirally to bottom from the top of described warehouse, the flow guiding slit relative with the import of described chute is formed between described first conical flow guiding block and the inwall of warehouse, the bottom of described warehouse is provided with multiple for being connected with the distributor pipe of described adsorption tower, and the discharge opening be connected mutually with the outlet of described chute.
Preferably, in above-mentioned adsorption tower, also comprise the second conical flow guiding block that the larger one end of cross-sectional area is positioned at the bottom of described warehouse, described discharge opening distributes along the bottom margin of described second conical flow guiding block.
Preferably, in above-mentioned adsorption tower, the guide face of described first conical flow guiding block is provided with guiding gutter, and described guiding gutter is connected with the import of described chute.
Preferably, in above-mentioned adsorption tower, it is protruding that described warehouse has the conical flow guiding formed by bottom indent, and the vertex of a cone of described conical flow guiding projection is relative with described first conical flow guiding block, and described discharge opening distributes along the bottom margin of described conical flow guiding projection.
Adsorption tower provided by the invention is in the process of work, active carbon enters in tower body, flue gas enters in tower body by inlet plenum, enter into desulfurization chamber by entrance shutter and carry out desulfurization, after oxysulfide in flue gas is desulfurized the charcoal absorption in room, flue gas enters into denitration chamber, ammonia is passed into by the logical ammonia pipeline of denitration chamber air inlet side, ammonia is removed the nitrogen oxide in flue gas in conjunction with the active carbon in denitration chamber, desulphurization denitration is combined in a tower body and removes by this patent, under ensure that the prerequisite of desulphurization denitration, avoid prior art sulphur oxide to the impact passing into ammonia, reduce the consumption of ammonia, and then reduce the cost of desulphurization denitration.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The structural representation of the adsorption tower of a kind of desulphurization denitration that Fig. 1 provides for prior art;
The structural representation of the adsorption tower of the another kind of desulphurization denitration that Fig. 2 provides for prior art;
The structural representation of the adsorption tower that Fig. 3 provides for the embodiment of the present invention;
A kind of internal structure schematic diagram of the tower body of the adsorption tower that Fig. 4 provides for the embodiment of the present invention;
The another kind of internal structure schematic diagram of the tower body of the adsorption tower that Fig. 5 provides for the embodiment of the present invention;
Fig. 6 is that the A-A of Fig. 5 is to sectional view;
The structural representation of the feed hopper of the adsorption tower that Fig. 7 embodiment of the present invention provides.
In upper Fig. 1-Fig. 7:
Feed arrangement 01, adsorption tower 02, active carbon 03, drawing mechanism 04;
Feed arrangement 001, adsorption tower 002, active carbon 003, drawing mechanism 004;
First conveyer 1, first tilting section 2, second tilting section 3, feed hopper 4, tower body 5, exhanst gas outlet 6, gas approach 7, discharging opening 8, second conveyer 9, distributor pipe 10;
Feed arrangement 21, logical ammonia pipeline 22, fumarole 221, apertured partition 23, entrance shutter 24, outlet grid 25, active carbon denitration layer 26, active carbon desulfurization layer 27, inlet plenum 28, discharging opening 29, discharging opening 210, discharge chamber 101.
Feed arrangement 11, logical ammonia pipeline 12, fumarole 121, apertured partition 13, entrance shutter 14, outlet grid 15, active carbon denitration layer 16, active carbon desulfurization layer 17, inlet plenum 18, discharging opening 19, discharging opening 110, discharge chamber 111;
Charging aperture 41, warehouse 42, chute 43, second conical flow guiding block 44, first conical flow guiding block 45, discharge opening 46.
Detailed description of the invention
The invention provides a kind of adsorption tower, while ensure that desulphurization denitration, reduce the consumption of ammonia, and then reduce the cost of desulphurization denitration.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Please refer to accompanying drawing 3, embodiments provide a kind of adsorption tower, comprise feed chute, feed hopper 4, distributor pipe 10, tower body 5 and frame, wherein:
Feed chute is the active carbon input port of whole adsorption tower, be connected with the feed hopper of adsorption tower, active carbon is poured in feed chute by the first conveyer 1, active carbon is transported in feed hopper 4 by feed chute, in fill process, damage is fallen in order to reduce active carbon, above-mentioned feed chute comprises the first tilting section 2 and the second tilting section 3, directly will fall and carry the slip that makes into along tilting section, the first concrete tilting section 2 and the angle of inclination of the second tilting section 3 and incline direction those skilled in the art between the two can design according to actual conditions;
Feed hopper 4 is active carbon memory spaces of whole adsorption tower, be connected with tower body 5 by distributor pipe 10, active carbon enters in tower body 5 by distributor pipe 10, in like manner in the course of conveying of distributor pipe 10, fall damage in order to reducing active carbon, above-mentioned distributor pipe 10 is also for being obliquely installed, concrete can be many, tower body 5 is main body section of whole adsorption tower, flue gas enters into the inlet plenum of tower body 5 by the gas approach 7 on tower body 5, then each activated carbon chamber entering into tower body 5 successively realizes absorption, active carbon finally after absorption is discharged by exhanst gas outlet 6, above-mentioned every bar distributor pipe 10 all specifically can realize the conveying of active carbon to a corresponding activated carbon chamber, active carbon is discharged eventually through discharging opening 8, frame is the installation foundation of all parts in whole adsorption tower, for steel construction piece is welded when general,
Please refer to accompanying drawing 4, tower body 5 is as the main part of whole adsorption tower, its inner chamber has inlet plenum 28 and discharge chamber 101 and is positioned between the two, and the desulfurization chamber communicated and denitration chamber, the logical ammonia pipeline 22 of the air inlet side being positioned at denitration chamber is provided with in the inner chamber of tower body 5, lead to the direction of fumarole 221 towards discharge chamber 101 of ammonia pipeline 22, desulfurization chamber is connected with inlet plenum 28 by entrance shutter 24, denitration chamber is connected with discharge chamber 101 by outlet grid 25, in the course of work of reality, flue gas enters into inlet plenum 28 by gas approach 7, and carry out desulfurization by desulfurization chamber successively, further by denitration chamber, the ammonia that logical ammonia pipeline 22 in denitration chamber passes into achieves denitration under the effect of active carbon, flue gas after desulphurization denitration enters into discharge chamber 101 and discharges eventually through exhanst gas outlet 6, active carbon enters in tower body by feed arrangement 21, the active carbon absorbing the sulfur and nitrogen oxides in flue gas is discharged on the second conveyer 9 eventually through the discharging opening of tower body 5 and is transferred away, with the operation that is for further processing.Concrete, desulfurization chamber in this structure is at least divided into along the multilayer active carbon desulfurization layer 27 on flue gas direction by apertured partition 23, denitration chamber is at least divided into along the multilayer active carbon denitration layer 26 on flue gas direction by apertured partition 23, above-mentioned desulfurization chamber and denitration chamber are separated into multiple active carbon layer, flue gas passes through layer by layer, improves the efficiency of desulphurization denitration.Concrete, the active carbon in above-mentioned desulfurization chamber realizes discharge by discharging opening 210, and the active carbon in denitration chamber realizes discharge by discharging opening 29.
Please refer to accompanying drawing 5, the figure shows the another kind of cut-away view of tower body 5, concrete, the inside center of tower body 5 is provided with inlet plenum 18, be positioned at the discharge chamber 111 of the both sides of tower body 5, between inlet plenum 18 and discharge chamber 111, there is the desulfurization chamber be connected and denitration chamber, the logical ammonia pipeline 12 of the air inlet side being positioned at denitration chamber is provided with in the inner chamber of tower body 5, lead to the direction of fumarole 121 towards discharge chamber 111 of ammonia pipeline 12, desulfurization chamber is connected with inlet plenum by entrance shutter 14, denitration chamber is connected with discharge chamber 111 by outlet grid 15, in the course of work of reality, flue gas enters into inlet plenum 18 by gas approach 7, and carry out desulfurization by the desulfurization chamber of inlet plenum 18 both sides successively, by the active carbon denitration layer 16 of denitration chamber, the ammonia that logical ammonia pipeline 12 in denitration chamber passes into achieves denitration under the effect of active carbon, active carbon enters in tower body by feed arrangement 11, flue gas after desulphurization denitration enters into discharge chamber 111 and discharges eventually through exhanst gas outlet 6, active carbon is discharged on the second conveyer 9 eventually through the discharging opening 8 of tower body and is transferred away.Concrete, in the tower body of this structure, desulfurization chamber is at least divided into along the multilayer active carbon desulfurization layer 17 on flue gas direction by apertured partition 13, and denitration chamber is at least divided into multiple active carbon layer by apertured partition 23, and flue gas passes through layer by layer, improves the efficiency of desulphurization denitration.Concrete, the active carbon in above-mentioned desulfurization chamber is by discharging opening 110, and the active carbon in denitration chamber realizes discharge by discharging opening 19.
Please continue to refer to accompanying drawing 5, in the structure shown here, tower body 5 can have two feed arrangements 11, and respectively in the both sides of inlet plenum, tower body 5 has two discharging taper buckets, be respectively the first discharging taper bucket and the second discharging taper bucket, first discharging taper bucket is communicated with the desulfurization chamber of the both sides of inlet plenum, first discharging taper bucket is by discharging opening 110 discharging, second discharging taper bucket realizes discharging by discharging opening 19, active carbon after this kind of discharge method makes desulfurization and the active carbon after denitration eject respectively, the active carbon circulation rate of desulfurization chamber and denitration chamber can be controlled respectively.
In tower body in the embodiment of the present invention, active carbon desulfurization layer is two-layer or three layers, and active carbon denitration layer is two-layer or three layers, as shown in Fig. 5 or Fig. 6.Those skilled in the art carry out suitable adjustment according to the effect of the production scale of reality and desulphurization denitration, and this patent is not specifically limited active carbon desulfurization layer and active carbon denitration layer.
The discharge gate position of the various situations provided in the embodiment of the present invention is provided with the adjustable material roller of rotating speed, is regulated the discharge velocity of active carbon, finally realize the circulation rate of active carbon by the rotating speed changing material roller.
Can be drawn by the above-mentioned description to two kinds of housing structures, the position that tower body 5 has active carbon is divided into desulfurization chamber and denitration chamber, and the air inlet side of denitration chamber is provided with logical ammonia pipeline, flue gas carries out desulfurization process at desulfurization chamber, enter into denitration chamber, ammonia is passed into by the logical ammonia pipeline of denitration chamber air inlet side, ammonia is removed the nitrogen oxide in flue gas in conjunction with the active carbon in denitration chamber, desulphurization denitration is combined in a tower body and removes by this patent, under ensure that the prerequisite of desulphurization denitration, avoid prior art sulphur oxide to the impact passing into ammonia, reduce the consumption of ammonia, and then reduce the cost of desulphurization denitration.
In addition, in the adsorption process of reality, active carbon in feed hopper 4 is all transported in tower body 5 and carries out absorption work, active carbon in this process in feed hopper 4 is all discharged, first conveyer 1 is to conveying in feed hopper 4, material drops into the bottom of feed hopper 4 until feed hopper 4 fills up from the charging aperture 41 of feed hopper 4, in this process, the drop of active carbon is larger, fall and damage seriously, in order to solve the problem, the feed hopper 4 of the adsorption tower that the embodiment of the present invention provides has done improvement, concrete feed hopper 4 comprises warehouse 42 and the first conical flow guiding block 45 relative with the charging aperture 41 of warehouse, wherein, the inwall of warehouse 42 is provided with many chutes 43 extended spirally to bottom from the top of warehouse, the flow guiding slit relative with the import of chute 43 is formed between first conical flow guiding block 45 and the inwall of warehouse 42, the bottom of warehouse 42 is provided with multiple for being connected with the distributor pipe 10 of adsorption tower, and the discharge opening 46 be connected mutually with the outlet of chute 43, under the guide functions of the first conical flow guiding block 45, chute 43 is entered into by flow guiding slit after active carbon material is entered by charging aperture 41, bottom is slipped to from the top of feed hopper by chute, and enter into eventually through discharge opening 46 conveying that distributor pipe 10 realizes active carbon material.In order to realize guiding better active carbon stream, the guide face of above-mentioned first conical flow guiding block 45 is provided with guiding gutter, and guiding gutter is connected with the import of chute, improves the accuracy of water conservancy diversion.
Certainly, usually feed hopper 4 is tubular structure, bottom is flat, in order to ensure that all active carbon materials in feed hopper 4 are all transported in tower body 5 by distributor pipe 10, concrete, this feed bin of above-mentioned adsorption tower also comprises the second conical flow guiding block, and one end that this baffle cross-sectional area is larger is positioned at the bottom of warehouse, and discharge opening 46 distributes along the bottom margin of the second conical flow guiding block 44.Certainly in order to ensure that active carbon material is all discharged by distributor pipe 10, can also be realized by the polycrystalline substance changing warehouse 42, concrete, it is protruding that described warehouse 42 has the conical flow guiding formed by bottom indent, the vertex of a cone of described conical flow guiding projection is relative with described first conical flow guiding block 45, and described discharge opening 46 distributes along the bottom margin of described conical flow guiding projection.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (8)
1. an adsorption tower, comprise tower body, wherein: described tower body inner chamber has inlet plenum and discharge chamber and is positioned between the two, and the desulfurization chamber communicated and denitration chamber, it is characterized in that, described inlet plenum is positioned at the center of described tower body, described desulfurization chamber and denitration chamber are two, and be all arranged symmetrically in the both sides of described inlet plenum, described desulfurization chamber is at least divided into along the multilayer active carbon desulfurization layer on flue gas direction by apertured partition, described denitration chamber is also at least divided into along the multilayer active carbon denitration layer on flue gas direction by apertured partition, described desulfurization chamber is connected with described inlet plenum by entrance shutter, described denitration chamber is connected with described discharge chamber by outlet grid, this adsorption tower also comprises the logical ammonia pipeline of the air inlet side being arranged on described denitration chamber, the fumarole of described logical ammonia pipeline is towards the direction of described discharge chamber.
2. adsorption tower according to claim 1, is characterized in that, the quantity of described active carbon desulfurization layer is 2 layers or 3 layers, and the quantity of described active carbon denitration layer is 2 layers or 3 layers.
3. adsorption tower according to claim 1, is characterized in that, described tower body has two charging apertures, and is distributed in the both sides of described inlet plenum respectively; Described tower body has two discharging taper buckets, be respectively the first discharging taper bucket and the second discharging taper bucket, described first discharging taper bucket is communicated with the desulfurization chamber of described inlet plenum both sides, described second discharging taper bucket is communicated with the denitration chamber of inlet plenum both sides, and the discharging opening of described first discharging taper bucket and the second discharging taper bucket is provided with the adjustable material roller of rotating speed.
4. adsorption tower according to claim 1, is characterized in that, also comprise the feed hopper by distributor pipe and described tower body intracavity inter-connection, this feed hopper is the active carbon memory space of whole adsorption tower.
5. adsorption tower according to claim 4, it is characterized in that, described feed hopper comprises warehouse and the first conical flow guiding block relative with the charging aperture of described warehouse, the inwall of described warehouse is provided with many chutes extended spirally to bottom from the top of described warehouse, the flow guiding slit relative with the import of described chute is formed between described first conical flow guiding block and the inwall of warehouse, the bottom of described warehouse is provided with multiple for being connected with the distributor pipe of described adsorption tower, and the discharge opening be connected mutually with the outlet of described chute.
6. adsorption tower according to claim 5, is characterized in that, also comprises the second conical flow guiding block that the larger one end of cross-sectional area is positioned at the bottom of described warehouse, and described discharge opening distributes along the bottom margin of described second conical flow guiding block.
7. adsorption tower according to claim 5, is characterized in that, the guide face of described first conical flow guiding block is provided with guiding gutter, and described guiding gutter is connected with the import of described chute.
8. adsorption tower according to claim 5, it is characterized in that, it is protruding that described warehouse has the conical flow guiding formed by bottom indent, and the vertex of a cone of described conical flow guiding projection is relative with described first conical flow guiding block, and described discharge opening distributes along the bottom margin of described conical flow guiding projection.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103405982B (en) * | 2013-07-02 | 2015-04-22 | 香港诺曼泰壹环保科技有限公司 | Smoke purification device |
| CN103585868B (en) * | 2013-11-27 | 2016-06-08 | 张博 | The flue gas processing device of the de-mercury dedusting of a kind of synchronized desulfuring and denitrifying and method |
| CN104857854B (en) * | 2015-05-18 | 2017-07-21 | 南京泽众环保科技有限公司 | A kind of reverse-flow smoke eliminator and its clean unit |
| CN108371872B (en) * | 2018-04-08 | 2023-07-25 | 中冶长天国际工程有限责任公司 | Desulfurization and denitrification device for high-efficiency denitrification |
| CN109092008B (en) * | 2018-08-02 | 2020-08-18 | 中南大学 | High-efficiency purification process for sintering flue gas activated carbon |
| CN109865414B (en) * | 2019-03-18 | 2021-09-10 | 河北航天环境工程有限公司 | Activated carbon desulfurization and denitrification device |
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