CN108371872A

CN108371872A - The desulfuring and denitrifying apparatus of NO_x Reduction by Effective

Info

Publication number: CN108371872A
Application number: CN201810305906.2A
Authority: CN
Inventors: 魏进超; 李俊杰; 杨本涛
Original assignee: Zhongye Changtian International Engineering Co Ltd
Current assignee: Zhongye Changtian International Engineering Co Ltd
Priority date: 2018-04-08
Filing date: 2018-04-08
Publication date: 2018-08-07
Anticipated expiration: 2038-04-08
Also published as: WO2019196486A1; KR20200104404A; KR102422222B1; RU2760553C1; CN108371872B; PH12020551257A1; BR112020016922A2

Abstract

A kind of desulfuring and denitrifying apparatus of NO_x Reduction by Effective, the device include：Adsorption tower (1), Analytic Tower (2), gas mixer (3), first activated carbon conveyer (4), second activated carbon conveyer (5) and the activated carbon feed bin (AC) being arranged in the top of adsorption tower (1), wherein adsorption tower (1) has smoke inlet (A) in one side, there is exhanst gas outlet (B) in its other side, the first gas pipeline (L1) wherein drawn from the gas outlet of gas mixer (3) is connected to the air inlet of activated carbon feed bin (AC), the second gas pipeline (L2) drawn from the gas outlet of gas mixer (3) is connected to smoke inlet (A), the third gas pipeline (L3) drawn from the gas outlet of activated carbon feed bin (AC) converges with second gas pipeline (L2).The application takes the advance absorbed portion ammonia of activated carbon；Meanwhile in order to enhance denitration effect, part ammonia is sprayed into again at the middle part of adsorption tower.

Description

The desulfuring and denitrifying apparatus of NO_x Reduction by Effective

Technical field

The present invention relates to activated carbon method smoke eliminator, which belongs to a kind of activity suitable for air contaminant treatment Charcoal method smoke eliminator is related to field of environment protection particularly for the NO_x Reduction by Effective ammonia-gas spraying device of the purification of sintering flue gas.

Background technology

For industrial smoke, the especially sintering device flue gas of steel and iron industry, using including activated carbon adsorber and parsing The desulphurization and denitration device and technique of tower are more satisfactory.De- including activated carbon adsorber and Analytic Tower (or regenerator) In sulphur, denitrification apparatus, activated carbon adsorber is used for from sintering flue gas or exhaust gas (the especially sintering cigarette of the sintering machine of steel and iron industry Gas) absorption includes oxysulfide, nitrogen oxides He pollutant including bioxin, and hot recycling of the Analytic Tower for activated carbon.

Activated carbon desulfurization has desulfurization degree height, denitration can be achieved at the same time, Tuo bioxin, dedusting, do not generate waste water and dregs The advantages that, it is extremely promising flue gas purifying method.Activated carbon can regenerate at high temperature, when temperature is higher than 350 DEG C, absorption (sulfur dioxide is solved for the pollutants such as oxysulfide, nitrogen oxides, bioxin on the activated carbon generation fast resolving or decomposition Analysis, nitrogen oxides is He bioxin is decomposed).And with the raising of temperature, the reproduction speed of activated carbon is further speeded up, regeneration Time shortens, and preferably regenerating active carbon temperature is approximately equal to 430 DEG C in general control Analytic Tower, therefore, ideal parsing temperature It is for example in 390-450 DEG C of range, more preferably in 400-440 DEG C of range to spend (or regeneration temperature).

Traditional active carbon desulfurization technique is as shown in fig. 1.Flue gas introduces adsorption tower by booster fan, is sprayed into entering tower mouth The mixed gas of ammonia and air, to improve NO_XRemoval efficiency, purified flue gas enters the main smoke stack emission of sintering.Activity Charcoal is added to by tower top in adsorption tower, and is moved down under the action of gravity and bottom of tower drawing mechanism.The work that Analytic Tower comes out Property charcoal adsorption tower is delivered to by 2# activated carbon conveyers, the activated carbon after adsorption tower absorption pollutant saturation is discharged by bottom, is arranged The activated carbon gone out is delivered to Analytic Tower by 1# activated carbon conveyers, carries out regenerating active carbon.

The effect of Analytic Tower is by the SO of activated carbon adsorption₂It releases, while in 400 DEG C or more of temperature and centainly 80% or more , bioxin decomposable asymmetric choice net under residence time, activated carbon recycles again after cooling, screening.The SO released₂It can Sulphuric acid etc., the communicated device of activated carbon after parsing are sent to adsorption tower and are re-used to absorption SO₂And NO_XDeng.

The NO in adsorption tower and Analytic Tower_XSCR, SNCR etc. occurs with ammonia to react, to remove NO_X.Dust is passing through absorption It is tightly held by activated carbon when tower, the vibrating screen in Analytic Tower bottom end is detached, and is that active carbon powder sends to ash cellar under sieving.

Current activated carbon method flue gas purifying technique is generally injected directly into ammonia using smoke inlet, in order to increase denitration Rate usually increases smoke inlet ammonia spraying amount, but it is more serious to also result in outlet the escaping of ammonia.

In addition, dust is tightly held by activated carbon when passing through adsorption tower, the vibrating screen in Analytic Tower bottom end is detached, under sieving Ash cellar is sent to for active carbon powder, the qualified activated carbon that is considered as staying in sieve top recycles.Currently used mesh form For square hole, length of side a requires to determine according to screening, generally 1.2mm or so.However, being for similarly sized The activated carbon of drug sheet is sieved using this sieve, also will be regarded as certified products.The wear-resisting compressive resistance of tablet shaped activated carbon is equal It is very low, into flue gas purification system after readily become fragment, on the one hand cause flue gas purification system due to active carbon bed by Cause resistance big in powder, to increase system operation expense more；On the other hand active carbon high-temp burning risk is also increased, Dust is mainly stylish by active carbon bed by the part fine particle and flue gas that are carried in raw flue gas in exiting flue gas simultaneously The activated carbon powdered carbon of entrainment forms, and active carbon bed powder also results in the increase of exhanst gas outlet dust more, influences surrounding enviroment, makes At atmosphere pollution.

In addition, the activated carbon discharge device of the prior art includes round roller batcher and feed rotary valve, as shown in Figure 8.

For round roller batcher, in the work course, activated carbon acts on round roller feed by gravity It moves down under the control of machine, the different rotating speed of round roller batcher determines the movement speed of activated carbon, the discharge of round roller batcher Activated carbon, which enters to enter in conveying equipment after rotatory feeder valve discharging, to be recycled, and the main function of rotatory feeder valve is in discharge While keep adsorption tower sealing, so that the pernicious gas in adsorption tower is not leaked into air.

Due to containing certain vapor and dust in flue gas, activated carbon will produce a small amount of bond now in adsorption process As forming block feed opening being blocked, as shown in Figure 9.If feed opening block it is serious, activated carbon can not continuous moving, cause Activated carbon adsorption is saturated and loses clean-up effect, or even since activated carbon accumulation of heat leads to active carbon bed high temperature, there are larger Security risk.The method handled at present be system-down after manually remove block.In addition, round roller batcher is in process of production Failure happens occasionally, such as：Material the problems such as being unable to control when material leakage situation when flue gas pressures change, parking.In addition round roller The quantity more (as long as there are one breaking down, entire large-scale plant must stop work) of batcher, cost is high, Maintenance and Repair are difficult, Therefore certain limitation is brought to the development of activated carbon technology.

Secondly, it for the feed rotary valve of the prior art, has the following problems：It is this kind of for desulphurization denitration activated carbon On the other hand the conveying of friable particle realizes the lossless fortune of material using rotary valve on the one hand in order to ensure the air-tightness of tower body It is defeated, but if the rotation due to blade in rotary valve transmission process causes pumped (conveying) medium to be sheared, referring to attached drawing 8, can cause The increase of system operation expense.Shearing phenomenon simultaneously can cause valve body wear, air-tightness to be deteriorated, and service life reduces.Especially In feed inlet heap full with substance, rotational valve core, blade and valve casing are more obvious to the shear action of pumped (conveying) medium.For usually having For the large-scale adsorption tower for having 20 meters or so height, round roller batcher or rotary valve break down in process of production, for work Continuously running for skill causes huge loss, because having loaded several tons of activated carbon in adsorption tower, manual demolition is with repair or again Newly install it is extremely difficult, caused by shut-down influence and loss be difficult to imagine.

Invention content

In order to avoid ammonia is excessively escaped, the application takes the advance absorbed portion ammonia of activated carbon；Meanwhile in order to enhance denitration effect Fruit sprays into part ammonia again at the middle part of adsorption tower.

According to the first of the application embodiment, a kind of desulfuring and denitrifying apparatus of NO_x Reduction by Effective is provided, which includes： Adsorption tower, Analytic Tower, gas mixer, the first activated carbon conveyer and are set the second activated carbon conveyer above adsorption tower The activated carbon feed bin set,

Wherein adsorption tower one side have smoke inlet and respectively in the flue top of smoke inlet unicom, flue Portion and flue lower part and its other side have exhanst gas outlet, and

The first gas pipeline wherein drawn from the gas outlet of gas mixer is connected to air inlet (it of activated carbon feed bin Positioned at the middle part or lower part of feed bin), the second gas pipeline drawn from the gas outlet of gas mixer be connected in the middle part of flue and It is optionally additionally coupled to and (connects or be not attached to) flue top, (it is located in feed bin from the gas outlet of activated carbon feed bin Portion or top) draw third gas pipeline converge with second gas pipeline.

Generally, the flue in smoke inlet downstream is divided into three layers, i.e. flue top, flue middle part and flue lower part；Accordingly Adsorption tower is equally divided into top, middle part, lower part by ground.It dilutes penetrating point of the ammonia in flue and is located at (preferably position in the middle part of flue In its front end).

In this application, " optionally " indicate be with or without, indicate carry out or without.

Generally, two rotary valves are set on the activated carbon conveyance conduit of the top of activated carbon feed bin.It is preferred that at the two It is connected with nitrogen delivery pipe between rotary valve, for nitrogen-sealed, prevents smoke spillage.

It is preferred that being respectively provided with first gas valve V and second in the front end of first gas pipeline and second gas pipeline Gas valve V.

Generally, the first activated carbon conveyer collects activated carbon being discharged from the bottom of adsorption tower, having adsorbed flue gas Material is then delivered to the top of Analytic Tower.

Second activated carbon conveyer collects the regenerated activated carbon of analytically tower discharge, is then delivered to adsorption tower In the feed bin of top.

Generally, it is connected with nitrogen delivery pipe between two rotary valves on the top feed pipe of Analytic Tower, and parsed It is connected with nitrogen delivery pipe between two rotary valves on the lower section discharge duct of tower, these are used for nitrogen-sealed, prevent flue gas from letting out Leakage.

Ammonia is through Dilution air to NH in gas mixer₃Become to dilute ammonia after concentration≤5vol%, the first via is dilute It releases ammonia and is passed through feed bin at the top of adsorption tower through first gas valve V and first gas pipeline, dilution ammonia is by feed bin Activated carbon adsorb in advance.Another way or the second tunnel dilution ammonia are through second gas valve V and second gas pipeline to flue Middle part and optionally it is transported to flue top.The mixed gas being discharged from activated carbon feed bin via third gas pipeline and Converge with another way or the second tunnel dilution ammonia, sprays into flue.Flue points three layers, equally by adsorption tower be divided into top, middle part, under Portion, diluted ammonia gas blowout access point are located in the middle part of flue.Ammonia leaks to conveyer in feed bin in order to prevent, feed bin and conveyer it Between Double layer rotating valve is set, and be passed through sealing gas (such as nitrogen or inert gas).AC adsorbs NH in feed bin₃Afterwards, in gravity Under effect, it is transferred to adsorption tower top, and smoke contacts realize desulphurization denitration, also result in the ammonia of activated carbon adsorption gradually quilt Reaction of nitrogen oxides falls, but activated carbon still has stronger catalytic activity at this time, in order to strengthen denitration effect, therefore in adsorption column inlet Part ammonia is added in the middle part of flue；By the activated carbon in the middle part of adsorption tower, photocatalytic active carbon is very poor, in order to avoid ammonia Waste, in flue lower part without spraying into ammonia.

In above-mentioned first embodiment, ammonia can be avoided excessively to escape.Take the advance absorbed portion ammonia of activated carbon；Together When, in order to enhance denitration effect, part ammonia is sprayed into again at the middle part of adsorption tower.

According to the second of the application embodiment, a kind of desulfuring and denitrifying apparatus of NO_x Reduction by Effective is provided, which includes： Adsorption tower, Analytic Tower, gas mixer, the first activated carbon conveyer and are set the second activated carbon conveyer above adsorption tower The activated carbon feed bin set,

Wherein adsorption tower one side have smoke inlet and respectively in the flue top of smoke inlet unicom, flue Portion and flue lower part and its other side have exhanst gas outlet,

Wherein Analytic Tower is furnished with nitrogen delivery pipe, and there are four branch i.e. the first nitrogen branch, second for nitrogen delivery pipe tool Nitrogen branch, third nitrogen branch and the 4th nitrogen branch, the first nitrogen branch are connected to the lower part cooling section of Analytic Tower, The second nitrogen branch is connected to the top heated zones of Analytic Tower, which is connected to the top charging of Analytic Tower Between two rotary valves on pipe, the 4th nitrogen branch be connected to two rotary valves on the lower section discharge duct of Analytic Tower it Between；With

Wherein ammonia delivery pipe is divided into two-way i.e. first gas pipeline and second gas pipeline, which connects It is connected to the first nitrogen branch, second gas pipeline is connected to the ammonia imports of gas mixer, from the gaseous mixture of gas mixer The third gas pipeline that body outlet is drawn is connected in the middle part of the flue of adsorption tower and (preferably, sprays ammonia point and be located at its front end).

Generally, the top heated zones of Analytic Tower are package heat exchange structure, and wherein heat gas walks shell side, and activated carbon is walked Tube side.Lower part cooling section is also package heat exchange structure, and wherein cooling gas walks shell side, and activated carbon walks tube side.

The first nitrogen branch supplying nitrogen enters in the tube side of lower part cooling section.The second nitrogen branch delivery of nitrogen Gas enters in the tube side of top heated zones.

Generally, two rotary valves are set on the activated carbon conveyance conduit of the top of the activated carbon feed bin of adsorption tower.It is preferred that It is connected with nitrogen delivery pipe between the two rotary valves, for nitrogen-sealed, prevents smoke spillage.

The main function of nitrogen is passed through in Analytic Tower：When sealing, second is that as SO₂Carrier gas.Generally point four tunnels are passed through Analytic Tower cools down the nitrogen all the way of pars infrasegmentalis including Analytic Tower.A certain amount of ammonia is via first gas valve and first Gas pipeline and enter Analytic Tower cooling pars infrasegmentalis nitrogen pipeline in, connect with regenerated carbon after cooling after nitrogen dilutes It touches, ammonia is adsorbed in advance by activated carbon.The ammonia of another part in gas mixer ammonia through Dilution air to NH₃Concentration Become to dilute ammonia after≤5vol%, sprays into flue.Three layers of flue point, is equally divided into top, middle part, lower part by adsorption tower, dilute It releases ammonia and sprays into point in the middle part of flue.Analytic Tower cools down pars infrasegmentalis AC and adsorbs NH₃Afterwards, adsorption tower top is moved to through conveyer, With smoke contacts, desulphurization denitration is realized, the ammonia for also resulting in activated carbon adsorption is gradually consumed by the reaction, but activated carbon is still at this time There is stronger catalytic activity, in order to strengthen denitration effect, dilution ammonia is added in the middle part of adsorption column inlet flue；By in adsorption tower The activated carbon in portion, photocatalytic active carbon is very poor, in order to avoid the waste of ammonia, in flue lower part without spraying into ammonia.

In above-mentioned second embodiment, ammonia can be avoided excessively to escape.Activated carbon is taken to cool down pars infrasegmentalis in Analytic Tower Advance absorbed portion ammonia；In order to enhance denitration effect, part ammonia is sprayed into again in the middle part of adsorption tower.

Preferably, adsorption tower has 3 activated carbon material rooms, and according to the sequence of the flow direction of flue gas, the first material room is (i.e. Cup), the thickness of the second material room (i.e. in room) and third material room (i.e. rear chamber) distinguish 90-350mm (preferably 100-250mm, 110- 230mm, such as 120,150,200 or 220mm), 360-2000mm (preferably 380-1800mm, preferably 400-1600mm, such as 450, 600,700,800,900,1200,1500,1700mm) and 420-2200mm (preferably 432-2200mm, preferably 450-2050mm, Such as 500,600,700,800,900,1000,1100mm, 1400mm, 1600mm, 1800mm or 2000mm).

Preferably, in the bottom of each material room of adsorption tower tool, there are one discharge round rollers.

Preferably, there are one or more blowdown rotary valves in the blanking bin of adsorption tower or Lower Hold.

In all system for desulfuration and denitration of the application, generally, adopted in the lower section of the bottom discharge mouth of Analytic Tower or downstream With the vibrating screen equipped with sieve.

In order to avoid retention of the activated carbon on sieve of drug sheet, the application is designed with rectangle sieve pore or strip The sieve of shape sieve pore.The sieve can install the active carbon particle for filtering out the needs for meeting desulfuring and denitrifying apparatus on the vibrating.

It is preferred, therefore, that a kind of sieve with rectangle sieve pore or strip sieve pore is provided, the rectangle sieve pore Length L >=3D, the width a=0.65h-0.95h (preferably 0.7h-0.9h, more preferable 0.73h-0.85h) of rectangle sieve pore, Middle D is the diameter of the circular cross section for the activated carbon cylinder to be retained on sieve, and h is to be retained on sieve The minimum value of granular active carbon cylinder length.

In particular, in order to overcome the prior art problem encountered in desulfuring and denitrifying apparatus, activated carbon cylinder is generally required The minimum value h of length is 1.5mm-7mm.Such as h=2,4 or 6mm.

D (or) depend on desulfuring and denitrifying apparatus specific requirement.Generally,It is preferred that 5-9mm, more It is preferred that 5.5-8.5mm, more preferable 6-8mm, such as 6.5mm, 7mm or 7.5mm.

Adsorption tower generally has at least two activated carbon material room.

Preferably, in the bottom of each activated carbon material room of adsorption tower tool, there are one round roller batcher or discharge round rollers (G).For discharge round roller (G) described here, the discharge round roller of the prior art can be used.It is preferable, however, that replacing circle Roller batcher or discharge round roller (G), a kind of novel star wheel type activated carbon discharge device (G) that can be used, it includes：Activity The front apron and rear baffle of charcoal material room lower part, and positioned at by activated carbon material room lower part front apron and rear baffle and two side plate institutes Star wheel type activated carbon material roller below the discharge gate of composition；Wherein star wheel type activated carbon material roller includes round roller and along round roller Circumference be angularly distributed or multiple blades of basic spaced at equal angles around.More specifically, by activated carbon material room lower part A kind of novel star wheel type activated carbon material roller is used below the discharge gate that front apron and rear baffle and two side plates are constituted.

From the cross section of star wheel type activated carbon material roller, star wheel type configuration or shape is presented.

Star wheel type activated carbon blanking device is mainly by the front apron of activated carbon discharge gate, rear baffle and two side plates and blade It is formed with round roller.Front apron and rear baffle fixed setting, there are activated carbon blanking channels, i.e. discharge between front apron and rear baffle Mouthful, which is made of front apron, rear baffle and two side plates.The lower end in front apron and rear baffle, blade is arranged in round roller It is uniformly fixed in round roller, round roller does rotary motion by motor drive, and gyratory directions are from rear baffle to front apron direction.Blade it Between angle or spacing cannot be excessive, the angle theta between blade is typically designed as being less than 64 °, such as 12-64 °, preferably 15- 60 °, preferably 20-55 °, more preferable 25-50 °, more preferable 30-45 °.A gap or spacing are designed between blade and rear baffle bottom end s.The s generally takes 0.5-5mm, preferably 0.7-3mm, preferably 1-2mm.

The peripheral radius (or periphery radius of turn of the blade in round roller) of star wheel type activated carbon material roller is r.R is round roller The width of radius+blade of the cross section (circle) of (106a).

Generally, the radius of the cross section (circle) of round roller is 30-120mm, preferably 50-100mm, and the width of blade is 40- 130mm, preferably 60-100mm.

The distance between round roller center and front apron lower end are h, and h is generally greater than r+ (12-30) mm, but is less than r/ It sin58 °, not only can guarantee that activated carbon blanking was smooth in this way, but also can guarantee that activated carbon does not slide voluntarily when round roller is motionless.

Generally, in this application, the cross section of the discharge gate of star wheel type activated carbon discharge device is square or rectangle, Preferably length is more than the rectangle (or rectangle) of width.That is, length is more than the rectangle (or rectangle) of width.

Preferably, there are one or more blowdown rotary valves in the blanking bin of adsorption tower or Lower Hold (H).

For rotary valve described here, the rotary valve of the prior art can be used.It is preferable, however, that using a kind of Novel rotary valve, it includes：Upper feed inlet, spool, blade, valve casing, lower part discharge port, the top for being located at the inner cavity of valve are empty Between buffering area, peaceful flitch；Wherein buffering area is adjacent and communicating together with the lower space of feed inlet, and buffering area is in level side The length of upward cross section is more than the length of the cross section of feed inlet in the horizontal direction；Wherein flat flitch is set to buffering area Interior, the upper end of flat flitch is fixed on the top of buffering area, and " V " shape is presented in the cross section of flat flitch in the horizontal direction.

It is preferred that the cross section of upper feed inlet is rectangle or rectangle, and the cross section of buffering area is rectangle or rectangle.

It is preferred that the length of the cross section of buffering area is less than the length of the cross section of blade in the horizontal direction.

It is preferred that flat flitch is to be formed by two panels veneer splicing or flat flitch is to be bent into two plate faces by a sheet.

It is preferred that 2 α≤120 ° of two panels veneer or the angle of two plate faces, preferably 2 α≤90 °.Therefore, α≤60 °, preferably α≤ 45°。。

It is preferred that angle Φ >=30 ° between each veneer or each plate face and the length direction of buffering area, it is preferable that >=45 °, it is further preferred that the angle of friction of Φ >=activated carbon material.

It is preferred that the respective bottom of two panels veneer or two respective bottoms of plate face all present it is arc-shaped.

It is preferred that the length of the center line segment between two panels veneer or two plate faces is equal to or less than buffering area in the horizontal direction On cross section width.

Obviously ,+Φ=90 ° α.

Generally, in this application, the cross section of the discharge gate of rotary valve is square or rectangle, preferably length are more than The rectangle (or rectangle) of width.That is, length is more than the rectangle (or rectangle) of width.

Generally, the height of the agent structure of adsorption tower is 10-60m (rice), and preferably 12-55m (rice), preferably 14-50m are excellent Select 16-45m, 18-40m, preferably 20-35m, preferably 22-30m.The height of the agent structure of adsorption tower refers to from adsorption tower (main body Structure) import to outlet between height.The tower height of adsorption tower refers to exporting to absorption tower top from absorption tower bottom activated carbon The height of portion's activated carbon entrance, the i.e. height of the agent structure of tower.

Analytic Tower or regenerator usually have 8-45 meters, preferably 10-40 meters, more preferable 12-35 meters of tower height.Analytic Tower Usually there are 6-100 meters², preferably 8-50 meters², it is 10-30 meters more preferable², it is 15-20 meters further preferred²Body cross-section product.

In addition, in this application, flue gas includes in a broad sense：Conventional industrial smoke or industrial waste gas.

Activated carbon chamber expects that the thickness of room refers to the activated carbon chamber or expects the distance between two porous barriers of room Or spacing.

Advantages of the present invention or advantageous effects

1, by allowing activated carbon to adsorb a certain amount of ammonia in advance, enhance the effect of denitration, on the basis of existing technology Improve 40% or more denitration effect.

2, reduce ammonia escape.

3, it eliminates tablet activated carbon using the sieve with rectangle sieve pore in vibrating screen and arch formation, sieve occurs Under eliminate the very low tablet shaped activated carbon of wear-resisting compressive resistance, avoid generating fragment and dust in desulfuring and denitrifying apparatus, Reduce activated carbon moving resistance, reduce in adsorption tower active carbon high-temp and burn risk, allow high intensity activated carbon in a device Recycling.

4, using special discharge device, the discharging failure of activated carbon is reduced, package unit shut-down (breakdown) mainteance is substantially reduced Frequency.

Description of the drawings

Fig. 1 is desulfuring and denitrifying apparatus and the technological process for including activated carbon adsorber and regenerating active carbon tower of the prior art Schematic diagram.

Fig. 2 is the denitration denitrification apparatus and process flow diagram of the present invention.

Fig. 3 is another denitration denitrification apparatus and process flow diagram of the present invention.

Fig. 4 is the structural schematic diagram of the sieve of the prior art.

Fig. 5 is the structural schematic diagram of the sieve of the application.

Fig. 6 is the schematic diagram of tablet shaped activated carbon.

Fig. 7 is the schematic diagram of strip activated carbon.

Fig. 8 and 9 is the schematic diagram of the activated carbon discharge device (round roller batcher) of the prior art.

Figure 10 is the schematic diagram of the star wheel type activated carbon discharge device of the application.

The schematic diagram of the rotary valve F of Figure 11 present invention.

Figure 12 and Figure 13 is the structural schematic diagram along the cross section of the M-M lines of Figure 11.

Figure 14 is the structural schematic diagram of flat flitch (F07).

Reference numeral：

1：Activated carbon adsorber；101：Flue top；102：In the middle part of flue；103：Flue lower part；A：Smoke inlet；B：Cigarette Gas exports；AC：Activated carbon feed bin；2：Analytic Tower；201：Heating zone (section)；202：Cooling zone (section)；3：Gas mixer；4：The One activated carbon conveyer, 5：Second activated carbon conveyer；Sc:Vibrating screen；

V1：First gas valve；V2：Second gas valve；Vr：Activated carbon rotary valve；

L1：First gas pipeline, L2：Second gas pipeline；L3：Third gas pipeline.

L4：Nitrogen delivery pipe；L4a：First nitrogen branch pipe；L4b：Second nitrogen branch pipe；L4c：Third nitrogen branch pipe；L4d： 4th nitrogen branch pipe.

AC-c：Activated carbon material room；H：Lower hopper or Lower Hold；AC：Activated carbon；AC-1：Activated carbon block (or aggregation)； F：Rotary valve；

G：Round roller batcher or star wheel type activated carbon discharge device or star wheel type activated carbon material roller；G01：Round roller；G02： Blade；AC-I：Front apron；AC-II：Rear baffle；

h：The distance between the axis center of round roller G01 and the lower ends front apron AC-I；S：Between blade and rear baffle bottom end (gap) spacing；θ：Angle on round roller G01 between adjacent blades G02；r：Between the outer rim and the axis center of round roller G01 of blade Distance (i.e. radius of the blade for the center of round roller G01, abbreviation radius)；

F：It is fed rotary valve；F01：Spool；F02：Blade；F03：Valve casing；F04：Upper feed inlet；F05：Lower part discharges Mouthful；F06:Positioned at the buffering area of the upper space of the inner cavity of valve；F07：Flat flitch；F0701 or F0702：The two panels of flat flitch F07 Two plate faces of veneer or flat flitch F07.

α：The 1/2 of two panels veneer (F0701, F0702) or the angle of two plate faces (F0701, F0702).

Φ：Each veneer (F0701 or F0702) or each plate face (F0701 or F0702) and buffering area (F06) Angle between length direction.

L1：The length of cross sections of the feed inlet F04 on horizontal plane direction；L2：Flat flitch F07 is on horizontal plane direction The length of cross section.

Specific implementation mode

Sintering flue gas to be treated is the sintering device flue gas from steel and iron industry in embodiment.

As shown in Figure 2, a kind of desulfuring and denitrifying apparatus of NO_x Reduction by Effective is provided, which includes：Adsorption tower 1, Analytic Tower 2, gas mixer 3, the first activated carbon conveyer 4, the second activated carbon conveyer 5 and adsorption tower 1 top be arranged activity Charcoal feed bin AC,

Wherein adsorption tower 1 one side have smoke inlet A and respectively with the flue top 101 of smoke inlet A unicom, 102 and flue lower part 103 and there is exhanst gas outlet B in its other side in the middle part of flue, and

The first gas pipeline L1 wherein drawn from the gas outlet of gas mixer 3 is connected to the air inlet of activated carbon feed bin AC Mouth (it is located at the middle part or lower part of feed bin AC), the second gas pipeline L2 drawn from the gas outlet of gas mixer 3 are connected to 102 and flue top 101 is optionally additionally coupled to and (connects or be not attached to) in the middle part of flue, from the outlet of activated carbon feed bin AC The third gas pipeline L3 and second gas pipeline L2 that mouth (it is located at the middle part or top of feed bin AC) is drawn converges.

Generally, the flue in smoke inlet downstream is divided into three layers, i.e. flue top 101, flue middle part 102 and flue lower part 103；Correspondingly, equally adsorption tower 1 is divided for top, middle part, lower part.Penetrating point of the ammonia in flue is diluted to be located in flue Portion 102 (front end for being preferably placed at it).

Generally, two rotary valve Vr are set on the activated carbon conveyance conduit of the top of activated carbon feed bin AC.It is preferred that at this It is connected with nitrogen delivery pipe between two rotary valve Vr, for nitrogen-sealed, prevents smoke spillage.

It is preferred that the front end of first gas pipeline L1 and second gas pipeline L2 be respectively provided with first gas valve V1 and Second gas valve V2.

Generally, the first activated carbon conveyer 4 collects activity being discharged from the bottom of adsorption tower 1, having adsorbed flue gas Charcoal material is then delivered to the top of Analytic Tower.

Second activated carbon conveyer 5 collects the regenerated activated carbon that analytically tower 2 is discharged, and is then delivered to adsorption tower In 1 top feed bin 3.

Generally, it is connected with nitrogen delivery pipe between two rotary valve Vr on the top feed pipe of Analytic Tower 2, and solved It is connected with nitrogen delivery pipe between two rotary valve Vr on the lower section discharge duct of analysis tower 2, these are used for nitrogen-sealed, prevent cigarette Gas leakage.

Ammonia is through Dilution air to NH in gas mixer 3₃Become to dilute ammonia after concentration≤5vol%, the first via is dilute It releases ammonia and is passed through feed bin at the top of adsorption tower through first gas valve V1 and first gas pipeline L1, dilution ammonia is by feed bin Interior activated carbon adsorbs in advance.Another way or the second tunnel dilution ammonia are transported to through second gas valve V2 and second gas pipeline L2 102 and flue top 101 is optionally transported in the middle part of flue.The mixed gas being discharged from activated carbon feed bin AC is via third gas Body pipeline L3 is conveyed and is converged with another way or the second tunnel dilution ammonia, sprays into flue.Three layers of flue point, equally by adsorption tower point For top, middle part, lower part, diluted ammonia gas blowout access point is located in the middle part of flue.Ammonia leaks to conveyer in feed bin in order to prevent, Double layer rotating valve Vr is set between feed bin and conveyer, and is passed through sealing gas (such as nitrogen or inert gas).AC in feed bin Adsorb NH₃Afterwards, under the effect of gravity, it is transferred to adsorption tower top, with smoke contacts, desulphurization denitration is realized, also results in activity The ammonia of charcoal absorption is gradually fallen by reaction of nitrogen oxides, but activated carbon still has stronger catalytic activity at this time, in order to strengthen denitration effect, Therefore part ammonia is added in the middle part of adsorption column inlet flue；By the activated carbon in the middle part of adsorption tower, photocatalytic active carbon is very Difference, in order to avoid the waste of ammonia, in flue lower part without spraying into ammonia.

As shown in Figure 3, a kind of desulfuring and denitrifying apparatus of NO_x Reduction by Effective is provided, which includes：Adsorption tower 1, Analytic Tower 2, gas mixer 3, the first activated carbon conveyer 4, the second activated carbon conveyer 5 and adsorption tower 1 top be arranged activity Charcoal feed bin AC,

Wherein adsorption tower 1 one side have smoke inlet A and respectively with the flue top 101 of smoke inlet A unicom, 102 and flue lower part 103 and there is exhanst gas outlet B in its other side in the middle part of flue,

Wherein Analytic Tower 2 is furnished with nitrogen delivery pipe L4, and there are four branch i.e. the first nitrogen branches for nitrogen delivery pipe L4 tools L4a, the second nitrogen branch L4b, third nitrogen branch L4c and the 4th nitrogen branch L4d, the first nitrogen branch L4a are connected to The lower part cooling section 202 of Analytic Tower 2, the second nitrogen branch L4b are connected to the top heated zones 201 of Analytic Tower 2, this Three nitrogen branch L4c are connected between two rotary valve Vr on the top feed pipe of Analytic Tower 2, the 4th nitrogen branch L4d It is connected between two rotary valve Vr on the lower section discharge duct of Analytic Tower 2；With

Wherein ammonia delivery pipe is divided into two-way i.e. first gas pipeline L1 and second gas pipeline L2, the first gas pipe Road L1 is connected to the first nitrogen branch L4a, and second gas pipeline L2 is connected to the ammonia imports of gas mixer 3, mixed from gas The third gas pipeline L3 that the mixed gas outlet of clutch 3 is drawn, which is connected to 102 in the middle part of the flue of adsorption tower 1, (preferably, sprays ammonia point Positioned at its front end).

Generally, the top heated zones 201 of Analytic Tower 2 are package heat exchange structure, and wherein heat gas walks shell side, and active Charcoal walks tube side.Lower part cooling section 202 is also package heat exchange structure, and wherein cooling gas walks shell side, and activated carbon walks tube side.

The first nitrogen branch L4a supplying nitrogens enter in the tube side of lower part cooling section 202.The second nitrogen branch L4b supplying nitrogens enter in the tube side of top heated zones 201.

Generally, two rotary valve Vr are set on the activated carbon conveyance conduit of the top of the activated carbon feed bin AC of adsorption tower 1. It is preferred that being connected with nitrogen delivery pipe between the two rotary valves Vr, for nitrogen-sealed, smoke spillage is prevented.

The main function of nitrogen is passed through in Analytic Tower 2：When sealing, second is that as SO₂Carrier gas.Generally point four tunnels (L4a, L4b, L4c or L4d) is passed through Analytic Tower, and the nitrogen L4a all the way of pars infrasegmentalis is cooled down including Analytic Tower.A certain amount of ammonia Gas enters via first gas valve and first gas pipeline in the nitrogen pipeline L4a of Analytic Tower cooling pars infrasegmentalis, through nitrogen It is contacted with regenerated carbon after cooling after dilution, ammonia is adsorbed in advance by activated carbon.The ammonia of another part is mixed in gas Ammonia is through Dilution air to NH in clutch 3₃Become to dilute ammonia after concentration≤5vol%, sprays into flue.Three layers of flue point, equally Adsorption tower is divided into top, middle part, lower part, diluted ammonia gas blowout access point is located in the middle part of flue.Analytic Tower cools down pars infrasegmentalis AC absorption NH₃Afterwards, move to adsorption tower top through conveyer, and smoke contacts realize desulphurization denitration, also result in the ammonia of activated carbon adsorption by It is gradually consumed by the reaction, but activated carbon still has stronger catalytic activity at this time, in order to strengthen denitration effect, in adsorption column inlet flue Dilution ammonia is added in middle part；By the activated carbon in the middle part of adsorption tower, photocatalytic active carbon is very poor, in order to avoid the wave of ammonia Take, in flue lower part without spraying into ammonia.

D (or) depend on desulfuring and denitrifying apparatus specific requirement.Generally,It is preferred that 5-9mm, More preferable 5.5-8.5mm, more preferable 6-8mm, such as 6.5mm, 7mm or 7.5mm.

Embodiment A

As shown in Figure 5, the size (sieve retention size) of the finished activated charcoal recycled in desulfuring and denitrifying apparatus It is required that beingA kind of sieve is then designed in one layer of sieve of vibrating screen 3, The width a and length L of wherein rectangle sieve pore be：5mm (width a) × 27mm (length L).Wherein D is cut on sieve The diameter of the circular cross section of the activated carbon cylinder stayed, h are that the granular active carbon cylinder to be retained on sieve is long The minimum value of degree.A=0.833h.

Embodiment B

As shown in Figure 5, the size (sieve retention size) of the finished activated charcoal recycled in desulfuring and denitrifying apparatus It is required that beingA kind of sieve is then designed in one layer of sieve of vibrating screen 3, The width a and length L of wherein rectangle sieve pore be：3mm (width a) × 27mm (length L).Wherein D is cut on sieve The diameter of the circular cross section of the granular active carbon cylinder stayed.A=0.75h.During the sieve of the screen size is for retaining The activated carbon of equal grain sizes.

Embodiment C

As shown in Figure 5, the size (sieve retention size) of the finished activated charcoal recycled in desulfuring and denitrifying apparatus It is required that beingThen design one layer of sieve that a kind of sieve is used for vibrating screen 3 In, the width a and length L of wherein rectangle sieve pore are：1.6mm (width a) × 16mm (length L).Wherein D is the institute on sieve The diameter of the circular cross section for the granular active carbon cylinder to be retained.A=0.75h.

Adsorption tower generally has at least two activated carbon material room.

Preferably, in the bottom of each activated carbon material room AC-c of adsorption tower tool, there are one round roller batcher or discharges Round roller G.Generally, adsorption tower has at least two activated carbon material room AC-c.

For round roller batcher described here or discharge round roller G, can use round roller batcher in the prior art or Discharge round roller G, as shown in figs.It is preferable, however, that instead of round roller batcher or discharge round roller G, one kind can be used Novel star wheel type activated carbon discharge device G, as shown in Figure 10.Novel star wheel type activated carbon discharge device G includes：Activity The front apron AC-I and rear baffle AC-II of charcoal material room lower part, and kept off with rear positioned at the front apron AC-I by activated carbon material room lower part Star wheel type activated carbon material roller G below the discharge gate that plate AC-II and two side plates are constituted；Wherein star wheel type activated carbon discharge Roller G includes round roller G01 and is angularly distributed along the circumference of round roller or multiple blade G02 of basic spaced at equal angles around.More It says to body, under the discharge gate being made of the front apron AC-I of activated carbon material room lower part and rear baffle AC-II and two side plates Side uses a kind of novel star wheel type activated carbon material roller G.That is, lower part active-carbon bed layer segment (A) it is each The bottom of a material room is constituted by the front apron (AC-I) of activated carbon material room lower part and rear baffle (AC-II) and two side plates Discharge gate below, be equipped with star wheel type activated carbon material roller (G).

From the cross section of star wheel type activated carbon material roller G, star wheel type configuration or shape is presented.

In addition.Novel star wheel type activated carbon discharge device can also abbreviation star wheel type activated carbon material roller G, or both can It is used interchangeably.

Star wheel type activated carbon blanking device is mainly by the front apron AC-I of activated carbon discharge gate, rear baffle AC-II and two Side plate is formed with blade G02 and round roller G01.Front apron and rear baffle fixed setting, there are activity between front apron and rear baffle Charcoal blanking channel, i.e. discharge gate, the discharge gate are made of front apron AC-I, rear baffle AC-II and two side plates.Round roller setting exists The lower end of front apron AC-I and rear baffle AC-II, blade G02 are uniformly fixed on round roller G01, and round roller G01 is done by motor drive Rotary motion, gyratory directions are from rear baffle AC-II to the directions front apron AC-I.Angle or spacing between blade G02 cannot mistakes Greatly, the angle theta between blade is typically designed as less than 64 °, such as 12-64 °, preferably 15-60 °, preferably 20-55 °, more preferably 25-50 °, more preferable 30-45 °.A gap or distance s are designed between blade and rear baffle bottom end.The s generally takes 0.5-5mm, excellent Select 0.7-3mm, preferably 1-2mm.

The peripheral radius (or periphery radius of turn of the blade in round roller) of star wheel type activated carbon material roller G is r.R is round The width of radius+blade G02 of the cross section (circle) of roller G01.

Generally, the radius of the cross section (circle) of round roller G01 is 30-120mm, and the width of blade G02 is 40-130mm.

Preferably, there are one or more blowdown rotary valve F in the blanking bin of adsorption tower or Lower Hold 107.

For rotary valve F described here, the rotary valve of the prior art can be used, as shown in Figure 8.However, it is preferred to , using a kind of novel rotary valve F, as illustrated in figs. 11-14.Novel rotary valve F includes：Upper feed inlet F04, spool F01, blade F02, valve casing F03, lower part discharge port F05 are located at the buffering area F06 of the upper space of the inner cavity of valve, peaceful flitch F07；Wherein buffering area F06 is adjacent and communicating together with the lower space of feed inlet F04, and buffering area F06 is in the horizontal direction The length of cross section is more than the length of the cross sections of feed inlet F04 in the horizontal direction；Wherein flat flitch is set to buffering area F06 Interior, the upper end of flat flitch F07 is fixed on the top of buffering area F06, and " V " is presented in the cross sections of flat flitch F07 in the horizontal direction Shape.

It is preferred that the cross section of upper feed inlet F04 is rectangle or rectangle, and the cross section of buffering area F06 is rectangle Or rectangle.

It is preferred that the length of the cross section of buffering area F06 is less than the length of the cross sections of blade F02 in the horizontal direction.

It is preferred that flat flitch F07 is to be spliced by two panels veneer (F0701, F0702) or flat flitch F07 is by a piece of Plate is bent into two plate faces (F0701, F0702).

It is preferred that 2 α≤120 ° of angle of two panels veneer (F0701, F0702) or two plate faces (F0701, F0702), preferably 2 α≤90°.Therefore, α≤60 °, preferably α≤45 °.

It is preferred that each veneer (F0701 or F0702) or each plate face (F0701 or F0702) are with buffering area F06's Angle Φ >=30 ° between length direction, it is preferable that >=45 °, it is further preferred that the angle of friction of Φ >=activated carbon material.

It is preferred that the respective bottom of two panels veneer (F0701, F0702) or two respective bottoms of plate face (F0701, F0702) It all presents arc-shaped.

It is preferred that the length of the center line segment between two panels veneer (F0701, F0702) or two plate faces (F0701, F0702) Equal to or less than the width of the cross sections of buffering area F06 in the horizontal direction.

Obviously ,+Φ=90 ° α.

Generally, in this application, the cross section of the discharge gate F05 of novel rotary valve F is square or rectangle, preferably It is more than the rectangle (or rectangle) of width for length.That is, length is more than the rectangle (or rectangle) of width.

Embodiment 1

A kind of desulfuring and denitrifying apparatus of NO_x Reduction by Effective, the device include：Adsorption tower 1, Analytic Tower 2, gas mixer 3, the One activated carbon conveyer 4, the second activated carbon conveyer 5 and the activated carbon feed bin AC being arranged in the top of adsorption tower 1,

Wherein adsorption tower 1 has smoke inlet A in one side, has exhanst gas outlet B in its other side, and

The first gas pipeline L1 wherein drawn from the gas outlet of gas mixer 3 is connected to the air inlet of activated carbon feed bin AC Mouthful, the second gas pipeline L2 drawn from the gas outlet of gas mixer 3 is connected to smoke inlet A, from activated carbon feed bin AC's The third gas pipeline L3 and second gas pipeline L2 that gas outlet is drawn converges.

There are two activated carbon material room AC-c for the tool of adsorption tower 1, as shown in Figure 8.The discharge port of each material room AC-c is equipped with circle Roller batcher G.The discharge port of lower hopper or Lower Hold H are equipped with rotary valve F.Preferably, the lower section of 2 discharge gate of Analytic Tower is equipped with and shakes Dynamic sieve Sc, wherein vibrating screen Sc is equipped with the sieve of embodiment A, referring to Fig. 2.

Embodiment 2

Embodiment 1 is repeated, only smoke inlet downstream is flue, and the flue in smoke inlet downstream is divided into three layers, respectively For in the middle part of flue top 101, flue 102 and flue lower part 103, the second gas pipe drawn from the gas outlet of gas mixer 3 Road L2 is connected to 102 in the middle part of smoke inlet A flues.

Embodiment 3

Embodiment 2 is repeated, two rotary valves are only set on the activated carbon conveyance conduit of the top of activated carbon feed bin AC Vr；It is preferred that being connected with nitrogen delivery pipe between the two rotary valves Vr, for nitrogen-sealed, smoke spillage is prevented.First The front end of gas pipeline L1 and second gas pipeline L2 are respectively provided with first gas valve V1 and second gas valve V2.

Embodiment 4

Repeat embodiment 3, only set on the top feed pipe of Analytic Tower 2 there are two rotary valve Vr, the top of Analytic Tower 2 into It is connected with nitrogen delivery pipe between two rotary valve Vr in expects pipe；Two rotations that the lower section discharge duct of Analytic Tower 2 is equipped with It is connected with nitrogen delivery pipe between valve Vr, two rotary valve Vr on the lower section discharge duct of Analytic Tower 2.

Embodiment 5

Wherein adsorption tower 1 has smoke inlet A in one side, has exhanst gas outlet B in its other side,

Wherein ammonia delivery pipe is divided into two-way i.e. first gas pipeline L1 and second gas pipeline L2, the first gas pipe Road L1 is connected to the first nitrogen branch L4a, and second gas pipeline L2 is connected to the ammonia imports of gas mixer 3, mixed from gas The third gas pipeline L3 that the mixed gas outlet of clutch 3 is drawn is connected to the smoke inlet A of adsorption tower 1.

Embodiment 6

Embodiment 5 is repeated, only the downstreams smoke inlet A are flue, and the flue in the downstreams smoke inlet A is divided into three layers, point Not Wei flue top 101,102 and flue lower part 103 in the middle part of flue, the second gas drawn from the gas outlet of gas mixer 3 Pipeline L2 is connected to smoke inlet A flues middle part 102 and is connected to flue top 101.

Embodiment 7

Embodiment 6 is repeated, only the top heated zones 201 of Analytic Tower 2 are package heat exchange structure, and wherein heat gas is walked Shell side, and activated carbon walks tube side, lower part cooling section 202 is also package heat exchange structure, and wherein cooling gas walks shell side, and active Charcoal walks tube side；

The first nitrogen branch L4a supplying nitrogens enter in the tube side of lower part cooling section 202.The second nitrogen branch L4b supplying nitrogens enter in the tube side of top heated zones 201；

Two rotary valve Vr are set on the activated carbon conveyance conduit of the top of the activated carbon feed bin AC of adsorption tower 1；It is preferred that It is connected with nitrogen delivery pipe between the two rotary valves Vr, for nitrogen-sealed, prevents smoke spillage.

Embodiment 8

Embodiment 7 is repeated, is only respectively provided with first in the front end of first gas pipeline L1 and second gas pipeline L2 Gas valve V1 and second gas valve V2；Set on the top feed pipe of Analytic Tower 2 there are two rotary valve Vr, Analytic Tower 2 it is upper It is connected with nitrogen delivery pipe between two rotary valve Vr on square feed pipe.

In the above-described embodiments, it is replaced under 2 discharge gate of Analytic Tower by using the vibrating screen equipped with specific sieve The common vibrating screen of side eliminates tablet activated carbon and arch formation occurs, the very low medicine of wear-resisting compressive resistance is eliminated under sieve Piece shaped activated carbon avoids generating fragment and dust in desulfuring and denitrifying apparatus, reduces activated carbon moving resistance, reduce adsorption tower Interior active carbon high-temp burns risk, allow high intensity activated carbon recycling in a device, reduce Vibration Screen blanking and reduction Operating cost.

Embodiment 9

Embodiment 1 is repeated, only instead of discharge round roller G, and uses a kind of novel star wheel type activated carbon discharge device, such as Shown in Figure 10.In the bottom of an activated carbon material room, 1 discharge gate is set.Discharge gate is by front apron AC-I and rear baffle AC-II It is constituted with two side plate (not shown)s.

The height of the agent structure of adsorption tower is 21m (rice).Adsorption tower 1 has 2 activated carbon material rooms.Wherein it is in the left side The thickness of the first material room be 180mm.The thickness of the second material room in the right is 900mm.

Star wheel type activated carbon discharge device includes：The front apron AC-I and rear baffle AC-II of activated carbon material room lower part and position Star-wheel below the discharge gate being made of the front apron AC-I of activated carbon material room lower part and rear baffle AC-II and two side plates Formula activated carbon material roller G；Wherein star wheel type activated carbon material roller G include round roller G01 and along round roller circumference angularly (θ= 30 °) distribution 12 blade G02.

From the cross section of star wheel type activated carbon material roller G, star wheel type configuration is presented.

The discharge gate is made of front apron AC-I, rear baffle AC-II and two side plates.Round roller setting front apron AC-I with The lower end of rear baffle AC-II, blade G02 are uniformly fixed on round roller G01, and round roller G01 does rotary motion by motor drive, turns round Direction is from rear baffle AC-II to the directions front apron AC-I.Angle theta between blade G02 is 30 °.Blade and rear baffle bottom end it Between design a gap or distance s.The s takes 2mm.

The radius of the cross section (circle) of round roller G01 is 60mm, and the width of blade G02 is 100mm.

Embodiment 10

Embodiment 2 is repeated, only instead of discharge round roller G, and uses a kind of novel star wheel type activated carbon discharge device, such as Shown in Figure 10.In the bottom of an activated carbon material room, 1 discharge gate is set.Discharge gate is by front apron AC-I and rear baffle AC-II It is constituted with two side plate (not shown)s.

The height of the agent structure of adsorption tower is 21m (rice).The thickness of the first material room on the left side is 160mm.The of the right The thickness of two material rooms is 1000mm.

Star wheel type activated carbon discharge device includes：The front apron AC-I and rear baffle AC-II of activated carbon material room lower part and position Star-wheel below the discharge gate being made of the front apron AC-I of activated carbon material room lower part and rear baffle AC-II and two side plates Formula activated carbon material roller G；Wherein star wheel type activated carbon material roller G include round roller G01 and along round roller circumference angularly (θ= 45 °) distribution 8 blade G02.

The discharge gate is made of front apron AC-I, rear baffle AC-II and two side plates.Round roller setting front apron AC-I with The lower end of rear baffle AC-II, blade G02 are uniformly fixed on round roller G01, and round roller G01 does rotary motion by motor drive, turns round Direction is from rear baffle AC-II to the directions front apron AC-I.Angle theta between blade G02 is 45 °.Blade and rear baffle bottom end it Between design a gap or distance s.The s takes 1mm.

The peripheral radius of star wheel type activated carbon material roller G is r.R is radius+blade G02 of the cross section (circle) of round roller G01 Width.

The radius of the cross section (circle) of round roller G01 is 90mm, and the width of blade G02 is 70mm.

Embodiment 11

Embodiment 2 is repeated, only instead of common blowdown rotary valve F, and uses a kind of novel blowdown rotary valve F, such as Shown in Figure 11-14.

Novel rotary valve F includes：Upper feed inlet F04, spool F01, blade F02, valve casing F03, lower part discharge port F05 is located at the buffering area F06, peaceful flitch F07 of the upper space of the inner cavity of valve.Wherein buffering area F06 and feed inlet F04's Lower space is adjacent and communicating together, and the length of the cross sections of buffering area F06 in the horizontal direction is more than feed inlet F04 in level The length of cross section on direction；Wherein flat flitch is set in buffering area F06, and the upper end of flat flitch F07 is fixed on buffering area " V " shape is presented in the top of F06, the cross sections of flat flitch F07 in the horizontal direction.

The cross section of upper feed inlet F04 is rectangle, and the cross section of buffering area F06 is also rectangle.

The length of the cross section of buffering area F06 is less than the length of the cross sections of blade F02 in the horizontal direction.

Flat flitch F07 is spliced by two panels veneer (F0701, F0702).

2 α of angle of two panels veneer (F0701, F0702) is 90 °.

It is preferred that each veneer (F0701 or F0702) or each plate face (F0701 or F0702) are with buffering area F06's Angle Φ between length direction is 30 °.Ensure that Φ is more than the angle of friction of activated carbon material.

The respective bottom two panels veneer (F0701, F0702) all presents arc-shaped.

The length of center line segment between two panels veneer (F0701, F0702) or two plate faces (F0701, F0702) is slightly smaller Width in the cross sections of buffering area F06 in the horizontal direction.

+ Φ=90 ° α.

The periphery radius of turn of the blade of rotary valve is r.R is radius+blade F02 of the cross section (circle) of spool F01 Width.

Spool F01) the radius of cross section (circle) be 30mm, the width of blade F02 is 100mm.That is, r is 130mm.

The length of blade F02 is 380mm.

Embodiment 12

Embodiment 10 is repeated, only instead of common blowdown rotary valve F, and uses a kind of novel blowdown rotary valve F, such as Shown in Figure 11-14.

Rotary valve F includes：Upper feed inlet F04, spool F01, blade F02, valve casing F03, lower part discharge port F05 are located at The buffering area F06, peaceful flitch F07 of the upper space of the inner cavity of valve.The wherein lower space of buffering area F06 and feed inlet F04 Adjacent and communicating together, the length of the cross sections of buffering area F06 in the horizontal direction is more than feed inlet F04 in the horizontal direction The length of cross section；Wherein flat flitch is set in buffering area F06, and the upper end of flat flitch F07 is fixed on the top of buffering area F06 " V " shape is presented in portion, the cross sections of flat flitch F07 in the horizontal direction.

Flat flitch F07 is spliced by two panels veneer (F0701, F0702).

2 α of angle of two panels veneer (F0701, F0702) is 90 °.

The respective bottom two panels veneer (F0701, F0702) all presents arc-shaped.

+ Φ=90 ° α.

The length of blade F02 is 380mm.

Claims

1. a kind of desulfuring and denitrifying apparatus of NO_x Reduction by Effective, the device include：Adsorption tower (1), Analytic Tower (2), gas mixer (3), the first activated carbon conveyer (4), the second activated carbon conveyer (5) and the activated carbon material being arranged in the top of adsorption tower (1) Storehouse (AC),

Wherein adsorption tower (1) has smoke inlet (A) in one side, has exhanst gas outlet (B) in its other side, and

Wherein from the gas outlet of gas mixer (3) draw first gas pipeline (L1) be connected to activated carbon feed bin (AC) into Gas port, the second gas pipeline (L2) drawn from the gas outlet of gas mixer (3) is connected to smoke inlet (A), from activated carbon The third gas pipeline (L3) that the gas outlet of feed bin (AC) is drawn converges with second gas pipeline (L2).

2. the apparatus according to claim 1, it is characterised in that：Smoke inlet downstream is flue, in smoke inlet downstream Flue is divided into three layers, respectively flue top (101), flue middle part (102) and flue lower part (103), from gas mixer (3) The second gas pipeline (L2) drawn of gas outlet be connected to (102) in the middle part of smoke inlet (A) flue and be optionally additionally coupled to Flue top (101).

3. device according to claim 1 or 2, it is characterised in that：Activated carbon in the top of activated carbon feed bin (AC) is defeated Send two rotary valves (Vr) of setting on pipeline；It is preferred that being connected with nitrogen delivery pipe between the two rotary valves (Vr), it to be used for nitrogen Hermetic seal prevents smoke spillage.

4. device according to any one of claim 1-3, it is characterised in that：In first gas pipeline (L1) and the second gas The front end of body pipeline (L2) is respectively provided with first gas valve (V1) and second gas valve (V2).

5. according to the device described in any one of claim 1-4, it is characterised in that：It is set on the top feed pipe of Analytic Tower (2) There are two rotary valve (Vr), nitrogen delivery pipe is connected between two rotary valves (Vr) on the top feed pipe of Analytic Tower (2)； And/or

Two rotary valves (Vr) that the lower section discharge duct of Analytic Tower (2) is equipped with, two on the lower section discharge duct of Analytic Tower (2) It is connected with nitrogen delivery pipe between a rotary valve (Vr).

6. a kind of desulfuring and denitrifying apparatus of NO_x Reduction by Effective, the device include：Adsorption tower (1), Analytic Tower (2), gas mixer (3), the first activated carbon conveyer (4), the second activated carbon conveyer (5) and the activated carbon material being arranged in the top of adsorption tower (1) Storehouse (AC),

Wherein adsorption tower (1) has smoke inlet (A) in one side, has exhanst gas outlet (B) in its other side,

Wherein Analytic Tower (2) is furnished with nitrogen delivery pipe (L4), and there are four branch i.e. the first nitrogen branch for the nitrogen delivery pipe (L4) tool Road (L4a), the second nitrogen branch (L4b), third nitrogen branch (L4c) and the 4th nitrogen branch (L4d), the first nitrogen branch (L4a) it is connected to the lower part cooling section (202) of Analytic Tower (2), which is connected to Analytic Tower (2) Top heated zones (201), the third nitrogen branch (L4c) are connected to two rotations on the top feed pipe of Analytic Tower (2) Between valve (Vr), the 4th nitrogen branch (L4d) be connected to two rotary valves (Vr) on the lower section discharge duct of Analytic Tower (2) it Between；With

Wherein ammonia delivery pipe is divided into two-way i.e. first gas pipeline (L1) and second gas pipeline (L2), the first gas pipe Road (L1) is connected to the first nitrogen branch (L4a), and second gas pipeline (L2) is connected to the ammonia imports of gas mixer (3), The third gas pipeline (L3) drawn from the mixed gas outlet of gas mixer (3) is connected to the smoke inlet of adsorption tower (1) (A)。

7. device according to claim 6, it is characterised in that：The downstream smoke inlet (A) is flue, at smoke inlet (A) The flue in downstream is divided into three layers, respectively flue top (101), flue middle part (102) and flue lower part (103), mixed from gas The second gas pipeline (L2) that the gas outlet of clutch (3) is drawn is connected to (102) in the middle part of smoke inlet (A) flue and optionally goes back It is connected to flue top (101).

8. the device described according to claim 6 or 7, it is characterised in that：The top heated zones (201) of Analytic Tower (2) are shell Pipe heat exchange structure, wherein heat gas walk shell side, and activated carbon walks tube side, and lower part cooling section (202) is also package heat exchange knot Structure, wherein cooling gas walk shell side, and activated carbon walks tube side；

First nitrogen branch (L4a) supplying nitrogen enters in the tube side of lower part cooling section (202).The second nitrogen branch (L4b) supplying nitrogen enters in the tube side of top heated zones (201).

9. according to the device described in any one of claim 6-8, it is characterised in that：In the activated carbon feed bin of adsorption tower (1) (AC) two rotary valves (Vr) are set on the activated carbon conveyance conduit of top；It is preferred that being connected between the two rotary valves (Vr) There is nitrogen delivery pipe, for nitrogen-sealed, prevents smoke spillage.

10. according to the device described in any one of claim 6-9, it is characterised in that：In first gas pipeline (L1) and second The front end of gas pipeline (L2) is respectively provided with first gas valve (V1) and second gas valve (V2)；And/or

It is set on the top feed pipe of Analytic Tower (2) there are two rotary valve (Vr), two rotations on the top feed pipe of Analytic Tower (2) It is connected with nitrogen delivery pipe between rotary valve (Vr).

11. according to the device described in any one of claim 1-10, wherein the lower section of the bottom discharge mouth in Analytic Tower (2) Or downstream uses and a kind of vibrating screen of the sieve with rectangle sieve pore, length L >=3D of the rectangle sieve pore, rectangle is housed The width a=0.65h-0.95h (preferably 0.7h-0.9h, more preferable 0.73h-0.85h) of sieve pore, wherein D is wanted on sieve The diameter of the circular cross section of the activated carbon cylinder of retention, h are the granular active carbon cylinders to be retained on sieve The minimum value of length, it is preferred that h=1.5mm-7mm；It is further preferred that the diameter of the circular cross section of activated carbon cylinderFor 4.5-9.5mm, preferably 5-9mm.

12. according to the device described in any one of claim 1-11, wherein adsorption tower (1) has at least two activated carbon material Room (AC-c), and in the bottom of each activated carbon material room (AC-c) or in the front apron (AC-I) by activated carbon material room lower part Below the discharge gate constituted with rear baffle (AC-II) and two side plates, star wheel type activated carbon material roller (G), the star-wheel are housed Formula activated carbon material roller (G) includes round roller (G01) and is angularly distributed along the circumference of round roller or basic spaced at equal angles around Multiple blades (G02).

13. device according to claim 12, wherein round roller (G01) are arranged in front apron (AC-I) and rear baffle (AC- II lower end), the angle theta between the blade being distributed on the circumference of round roller (G01) (G02) is 12-64 °, preferably 15-60 °, more It is preferred that 20-55 °, more preferable 25-50 °, more preferable 30-45 °.

14. the distance s between device according to claim 13, wherein blade (G02) and rear baffle bottom end are 0.5- 5mm, preferably 0.7-3mm, preferably 1-2mm；And/or

The radius of the cross section (circumference) of round roller (G01) is 30-120mm, and the width of blade (G02) is 40-130mm；And/or

The distance between round roller center and front apron lower end h are greater than r+ (12-30) mm, but are less than r/sin58 °.

15. according to the device described in any one of claim 1-14, wherein have in the blanking bin or Lower Hold (H) of adsorption tower There are one or multiple blowdown rotary valves (F), the rotary valve (F) include：Upper feed inlet (F04), spool (F01), blade (F02), valve casing (F03), lower part discharge port (F05) are located at the buffering area (F06) of the upper space of the inner cavity of valve, peaceful flitch (F07)；Wherein buffering area (F06) and the lower space of feed inlet (F04) is adjacent and communicating together, and buffering area (F06) is in level The length of cross section on direction is more than the length of the cross section of feed inlet (F04) in the horizontal direction；Wherein flat flitch setting In buffering area (F06), the upper end of flat flitch (F07) is fixed on the top of buffering area (F06), and flat flitch (F07) is in level side " V " shape is presented in upward cross section.

16. device according to claim 15, wherein the cross section of upper feed inlet (F04) is rectangle or rectangle, and The cross section of buffering area (F06) is rectangle or rectangle；And/or

The length of the cross section of buffering area (F06) is less than the length of the cross section of blade (F02) in the horizontal direction.

17. system according to claim 15 or 16, wherein flat flitch (F07) is by two panels veneer (F0701, F0702) It is spliced or flat flitch (F07) is to be bent into two plate faces (F0701, F0702) by a sheet, two panels veneer (F0701, F0702) or 2 α≤120 ° of angle of two plate faces (F0701, F0702), that is, α≤60 °.

18. according to the system described in any one of claim 15-17, wherein each veneer (F0701 or F0702) or Angle Φ >=30 ° between each plate face (F0701 or F0702) and the length direction of buffering area (F06), it is further preferred that The angle of friction of Φ >=activated carbon material；And/or

The wherein respective bottom of two panels veneer (F0701, F0702) or two respective bottoms of plate face (F0701, F0702) is all in It is existing arc-shaped.