CN104941445B - A kind of catalytic bed smoke eliminator and its clean unit - Google Patents
A kind of catalytic bed smoke eliminator and its clean unit Download PDFInfo
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- CN104941445B CN104941445B CN201510251701.7A CN201510251701A CN104941445B CN 104941445 B CN104941445 B CN 104941445B CN 201510251701 A CN201510251701 A CN 201510251701A CN 104941445 B CN104941445 B CN 104941445B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/06—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with moving adsorbents, e.g. rotating beds
- B01D53/08—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with moving adsorbents, e.g. rotating beds according to the "moving bed" method
Abstract
The invention discloses a kind of catalytic bed smoke eliminator and its clean unit, catalytic bed smoke eliminator includes at least two clean units arranged vertically, clean unit includes purifying column body, ammonia compartment system and the beds above ammonia compartment system are provided with purifying column body, the top of purifying column body is provided with activated carbon cloth system, cloth system includes tilting down the cloth supervisor of setting, cloth supervisor is provided with the cloth branch pipe that Open Side Down, the opening of each cloth branch pipe is on same horizontal line, vertical tremie pipe is provided between each purifying column body cloth supervisor, cloth supervisor's discharge end of top clean unit and cloth supervisor's feed end of remaining clean unit are both connected on tremie pipe, the bottom of purifying column body is provided with discharge system, discharge system bag discharge cone bucket and the aggregate bin being arranged on below discharge cone bucket, the bottom of a upper clean unit aggregate bin is connected with the discharge nozzle being passed into next clean unit aggregate bin.
Description
Technical field
The present invention relates to a kind of flue gas purification system, specifically a kind of catalytic bed cigarette of utilization active carbon desulfurization denitration
Air purifying apparatus and its clean unit, belong to atmosphere pollution purification technology field.
Background technology
With China SO2And NOxDischarge capacity gradually increases, the standard of fume emission also more and more higher.Current gas cleaning neck
Wet technique is used in domain mostly, wet desulfurizing process not only consumes great lot of water resources, and the desulfurated plaster produced can also be right
Surrounding enviroment cause secondary pollution.
Activated carbon flue gases purification is a kind of dry FGD process technology of resourcebility, in 80 ~ 150 DEG C of temperature
Under, by the adsoption catalysis of activated carbon, the SO in flue gas2Micropore of the sulfuric acid absorption in activated carbon is converted into water, oxygen reaction
In, realize desulfurizing and purifying；At such a temperature, when adding ammonia, the NO in flue gasxSelective catalysis can be carried out on the activated carbon
Reduction reaction, generation nitrogen and water.Activated carbon flue gases purification can remove SO simultaneously2And multiple pollutant, it is applicable very much
Multiple pollutant in removing sintering flue gas and flue gas of refuse burning.Small, the accessory substance using active carbon purifying flue gas water consumption
Environmental pollution can not be resulted in recycling.
Publication No. CN1363413A, publication date are August in 2002 14 days, entitled " integrated counter-current is purified
The application for a patent for invention of device " discloses a kind of smoke eliminator, and the device is filled by cloth storage cabin, adsorbent equipment, desorption
Put, sorting unit order arrangement from top to bottom is formed by connecting, the lower end of hoisting mechanism is connected with sorting unit, flue gas discharge chamber
The top of each adsorbent equipment is connect respectively, and gas approach connects the bottom of each adsorbent equipment respectively.
Notification number be CN203264529U, the day for announcing be on November 6th, 2013, a kind of entitled " mistake-convection current gas cleaning
The patent of invention of adsorption tower " discloses a kind of gas cleaning adsorption tower, and it includes feed hopper, the cloth being sequentially communicated from top to bottom
It is middle flue gas collection chamber inside device, active carbon bed, dump skip, active carbon bed, active carbon bed bottom is unloaded provided with bilayer
Hopper, outside is divided into the neat stress collection chamber on top and the former flue gas cloth air chamber of bottom, neat stress collection by double-deck toroidal membrane
Air chamber top is provided with exhaust pass, and former flue gas cloth air chamber bottom is provided with the former flue gas inlet plenum flue connected with it, active-carbon bed
Layer, middle flue gas collection chamber, former flue gas cloth air chamber, the cross section of neat stress collection chamber and whole tower body are annular.
But, smoke eliminator has following deficiency in above-mentioned patent application：For the situation of big exhaust gas volumn, purification
The section of tower is too big, and flue gas contacts uneven with activated carbon, influences gas cleaning effect；Floor space is big, for transformation project
Deng the situation that place is limited, it be able to not may arrange；Bottom discharging is uneven, and activated carbon material can not realize overall flow；Top
Portion's apparatus for distributing is complicated, and space availability ratio is relatively low, and activated carbon material can not be uniformly distributed；Bottom cone bucket quantity is too many, fault rate
Height, in the case of nonserviceabling, empties the activated carbon in purifying column, turnaround of unit is extremely difficult without sufficient space；It is living
Property charcoal be used for remove NOxEffect is undesirable, and apparatus cost is high.
The content of the invention
It is used for that flue gas desulfurization and denitrification is more economical, efficient catalytic bed gas cleaning it is an object of the invention to provide one kind
Device, the problems such as to solve in prior art smoke eliminator activated carbon distribution, uneven discharge and big floor space.Together
When, the present invention also provides the clean unit in a kind of catalytic bed smoke eliminator.
The catalytic bed smoke eliminator of the present invention is adopted the following technical scheme that：A kind of catalytic bed smoke eliminator, bag
At least two clean units are included, clean unit includes purifying column body, and purifying column body goes out provided with flue gas inlet plenum and flue gas
Air chamber, purifying column body interior is provided with ammonia compartment system, and each clean unit is arranged vertically successively, the purifying column body
It is interior to remove NO in flue gas provided with being used for above ammonia compartment systemxBeds, each purifying column body
Top is respectively equipped with activated carbon cloth system, and the cloth system includes tilting down on the cloth supervisor of setting, cloth supervisor
Provided with the cloth branch pipe that Open Side Down, the opening of each cloth branch pipe is on same horizontal line, the top of top clean unit
Provided with storage bin, the top of storage bin is provided with feeding mechanism, and the cloth supervisor of top clean unit is arranged under storage bin
Vertical tremie pipe, cloth supervisor's discharging of top clean unit are provided between side, each purifying column body cloth supervisor
Cloth supervisor's feed end of end and remaining clean unit is both connected on tremie pipe, and the bottom of each purifying column body is set respectively
There is discharge system, the discharge system includes discharge cone bucket and the aggregate bin being arranged on below discharge cone bucket, and a upper purification is single
The bottom of first aggregate bin is connected with the discharge nozzle being passed into next clean unit aggregate bin, bottommost clean unit aggregate bin
Bottom be provided with discharging mechanism.
Cloth supervisor left and right arrangement in each clean unit, storage bin bottom centre position is fixedly connected with cloth
Expect house steward, the end of cloth house steward is extend into top clean unit, the folder between each cloth supervisor and horizontal plane
Angle is more than 35 °, and each cloth branch pipe is each perpendicular to the cloth master that left and right is set in horizontal plane, the top clean unit
Pipe upper end is moved closer to and is connected on cloth house steward, and the cloth supervisor lower end that left and right is set in remaining clean unit is gradually leaned on
Closely.
Each discharge cone bucket, which includes having on the marker board that left and right two is moved closer to diagonally downward, marker board respectively, to be supplied
Gap or hole that gas passes through, the flue gas inlet plenum are arranged on purifying column body between two adjacent discharge cone buckets
Position.
The fiaring cone set upward provided with tip in the discharge cone bucket, fiaring cone includes left and right two and tilted upward gradually
Gap or hole that supplied gas passes through are offered on close cowling panel, cowling panel.
Aggregate bin is one in the bottommost clean unit, and aggregate bin is front and rear adjacent two in remaining clean unit
Aggregate bin, the bottom of each discharge cone bucket is respectively equipped with discharging channel, and the end of each discharging channel, which is respectively equipped with, to be located at
Cutting agency in aggregate bin, each side wall of aggregate bin is respectively provided with more than 35 ° of angle with horizontal plane, and aggregate bin side wall is provided with
Anti- material washes away component.
The catalytic bed gas cleaning unit of the present invention is adopted the following technical scheme that：A kind of catalytic bed gas cleaning unit, bag
Purifying column body is included, purifying column body is provided with flue gas inlet plenum and flue gas discharge chamber, and purifying column body interior is provided with ammonia point
The beds being located above ammonia compartment system are provided with distribution system, the purifying column body, the purifying column body
Top is provided with activated carbon cloth system, and the cloth system includes tilting down the cloth supervisor of setting, and cloth supervisor is upper uniform
Provided with the cloth branch pipe that Open Side Down, the opening of each cloth branch pipe is on same horizontal line, the bottom of the purifying column body
Provided with discharge system, the discharge system includes discharge cone bucket.
The cloth supervisor left and right arrangement, the angle between the cloth supervisor and horizontal plane is more than 35 °, the cloth
The branch pipe cloth that left and right is set in horizontal plane, clean unit supervisor lower end or upper end are moved closer to.
Each discharge cone bucket, which includes having on the marker board that left and right two is moved closer to diagonally downward, marker board respectively, to be supplied
Gap or hole that gas passes through, the flue gas inlet plenum are arranged on purifying column body between two adjacent discharge cone buckets
Position.
The fiaring cone set upward provided with tip in the discharge cone bucket, fiaring cone includes left and right two and tilted upward gradually
Gap or hole that supplied gas passes through are offered on close cowling panel, cowling panel.
The aggregate bin of pyramid shape is provided with below the discharge cone bucket, the bottom of each discharge cone bucket is respectively equipped with discharge
Passage, the end of each discharging channel is respectively equipped with the cutting agency in aggregate bin, each side wall of aggregate bin and horizontal plane
More than 35 ° of angle is respectively provided with, aggregate bin side wall washes away component provided with anti-material.
The beneficial effects of the invention are as follows：In the use of the present invention, fresh activity is provided into purifying column using storage bin
Carbon feedstock, it would be desirable to which the flue gas of purification is from flue gas inlet plenum is incorporated into clean unit.Activated carbon material is entered downwards by storage bin
Enter into the activated carbon cloth system of each clean unit, activated carbon material enters the cloth master of first clean unit first
Pipe and cloth branch pipe in, material again through tremie pipe downwardly into next clean unit cloth supervisor and cloth branch pipe in,
Final material can be evenly distributed in each purifying column body.Cloth supervisor in each clean unit is connected by the way of in parallel
On tremie pipe, it is ensured that fresh activated carbon material can be added in each purifying column body, it is ensured that each purifying column sheet
Body does not lack material, the upper equally distributed cloth branch pipe of cloth supervisor ensure that activated carbon material full of whole purifying column body and
It is evenly distributed in purifying column body, equally distributed multiple cloth branch pipes can also reduce the height of activated carbon solid accumulation, from
And reduce cloth height.In purifying column body, the SO in flue gas2Sulfuric acid absorption is converted into activated carbon with water, oxygen reaction
Micropore in, realize desulfurizing and purifying；In beds under the catalytic action of catalyst, the NO in flue gasxWith the ammonia being passed through
Gas carries out selective catalytic reduction reaction, and reaction produces N2And water, realize that denitration is purified.Finally, the flue gas up to standard after purification from
Discharged in flue gas discharge chamber in each clean unit.Activated carbon material in each clean unit falls on discharge cone finally down
In bucket, multiple discharge cone buckets can be set to realize the height that uniform discharge, reduction discharge need.Drop into discharge cone bucket
Activated carbon material is entered in aggregate bin, and the intrinsic material of a upper purifying column is drained into down by the discharge nozzle of aggregate bin bottom
In the aggregate bin of one purifying column body, the activated carbon material in all clean units can so discharged.Segmented discharges
The problem of pipe can avoid overall long tube easily by the blocking of material, while being easy to the regulation between each clean unit.The present invention is adopted
With multiple clean units form in parallel, the situation of big exhaust gas volumn can be handled by increasing the quantity of clean unit, due to each
Individual clean unit is vertically arranged, and will not increase the sectional area of purifying column, and floor space is small, is particularly suitable for use in transformation project etc.
The limited situation in place；Flue gas contacts uniform abundant with activated carbon, improves gas cleaning effect；Clean unit bottom discharging is equal
Even, activated carbon material can realize overall flow；Clean unit top cloth system space availability ratio is high, and activated carbon material can be with
It is uniformly distributed.The present invention solves in prior art smoke eliminator that activated carbon distribution, discharge be uneven and floor space
Big the problems such as；Flue gas contacts uniform abundant with activated carbon and low-temperature denitration catalyst, and activated carbon adds catalyst combination to be used for desulfurization
Denitration is more economically efficient, using active carbon desulfurization and catalyst denitration, has played the respective advantage of two kinds of catalyst, and device is thrown
Money is more saved, and operating cost is lower, and effect is more preferable.
Further, cloth supervisor has more than 35 ° of angle with horizontal plane, is so conducive to activated carbon raw material uniform
Downwardly into clean unit.
Further, the gap and hole on the marker board of discharge cone bucket can supplied gas pass through, so former flue gas can be from row
Expect at cone bucket even into in purifying column body, activated carbon and flue gas is fully contacted, improve purification efficiency, it is effective to solve
The problem of flue gas and activated carbon respectively flow and mixed.
Further, fiaring cone is set to realize substantially in addition to very short one section of fiaring cone top, only in discharge cone bucket
Change that the activated carbon in activated carbon remaining clean unit in unit is overall, stably move down, and then reach activated carbon net
The residence time changed in unit is basically identical, improves clean unit utilization rate, makes the uniform effect of activated carbon more preferable.Fiaring cone
Gap and hole on cowling panel can supplied gas pass through so that increasing flue gas passes through section, improve flue gas even distribution effect, reduce flue gas
The resistance flowed up.
Further, bottommost clean unit is using an aggregate bin, and the aggregate bin is sufficiently bulky, can improve space profit
With efficiency, surge bunker when can be overhauled as each clean-up stage.Remaining clean unit can be reduced using two aggregate bins to gather materials
Highly.Clean unit bottom aggregate bin quantity of the present invention is few, volume big, in the case of nonserviceabling, and the space for having abundance makes only
The activated carbon changed in tower is emptied, and reduces turnaround of unit difficulty.In addition, cutting agency can be such that material is smoothly arranged from discharge cone bucket
Enter into aggregate bin；Anti- material, which washes away component, can reduce material to aggregate bin side wall scouring intensity, reduce aggregate bin side wall
The abrasion in face.
Brief description of the drawings
Fig. 1 is a kind of structural representation of embodiment of invention catalytic bed smoke eliminator；
Fig. 2 is Fig. 1 right view；
Fig. 3 is the structural representation of the clean unit of centre in Fig. 1；
Fig. 4 is Fig. 3 right view；
Fig. 5 is Fig. 3 B-B direction sectional view；
Fig. 6 is Fig. 3 C-C to sectional view；
Fig. 7 is the structural representation of ammonia compartment system；
Fig. 8 is Fig. 7 B-B direction sectional view；
Fig. 9 is the structural representation of cutting agency.
Embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
As shown in Figures 1 to 6, the present embodiment is urged for the structure of embodiment of catalytic bed smoke eliminator of the present invention a kind of
Changing bed smoke eliminator includes three clean units arranged vertically successively, and the top of top clean unit, which is provided with, to be used to store up
The storage bin 5 of viability carbon feedstock, the top of storage bin 5 is provided with feeding mechanism 4, and feeding mechanism 4 uses the star-like charging of double spool
Inert gas seal is used between device 401, two valve elements, the charging of activated carbon is realized, completely cuts off air, prevents flue gas from leaking.
Each clean unit includes purifying column body 1 respectively, and purifying column body 1 goes out provided with flue gas inlet plenum 101 and flue gas
Air chamber 102, the inside of purifying column body 1 is provided with to be provided with ammonia compartment system 8, the purifying column body 1 is distributed system positioned at ammonia
The beds 7 of the top of system 8, the top of each purifying column body 1 is respectively equipped with activated carbon cloth system 2, the cloth
The cloth supervisor 201 that system 2 includes same clean unit in the cloth supervisor 201 tilted down, the present embodiment is that left and right is right
Claim to be uniformly provided with downwardly open cloth branch pipe 202 on distribution, cloth supervisor 201, the opening of each cloth branch pipe 202 is same
On bar horizontal line.The cloth supervisor 202 of top clean unit is arranged on the lower section of storage bin 5, each purifying column body cloth
Vertical tremie pipe 203, cloth supervisor's discharge end of top clean unit and remaining clean unit are provided between material supervisor 202
Cloth supervisor feed end be both connected on tremie pipe 203.The bottom centre position of storage bin 5 is fixedly connected with cloth house steward
204, the end of cloth house steward 204 is extend into top clean unit, and each cloth supervisor 201 is respectively provided with horizontal plane
More than 35 ° of angle, the cloth branch pipe 202 is each perpendicular to be symmetrical set in horizontal plane, the top clean unit
Cloth be responsible for 201 upper ends move closer to and be connected on cloth house steward 204, the cloth being symmetrical set in remaining clean unit
201 lower ends of material supervisor are moved closer to, and cloth is responsible for 201 lower ending openings and corresponding cloth branch pipe in remaining clean unit
202 openings are concordant.
The bottom of each purifying column body 1 is respectively equipped with discharge system 3, and the discharge system 3 includes discharge cone bucket 301
With the aggregate bin 302 for being arranged on the lower section of discharge cone bucket 301, the discharge cone bucket 301 in each purifying column unit is multiple and left and right
It is disposed adjacent, each discharge cone bucket 301 includes the marker board 301a that left and right two is moved closer to diagonally downward, each discharge respectively
Plate 301a extends along the longitudinal direction, and the gap or hole that there is supplied gas to pass through on marker board 301a, the flue gas inlet plenum 101 are set
Put the position between two adjacent discharge cone buckets 301 on purifying column body 1.Provided with point in the discharge cone bucket 301
The fiaring cone 304 set upward is held, fiaring cone 304 includes left and right two and tilts upward the cowling panel moved closer to, each cowling panel
Extend along the longitudinal direction, gap or hole that supplied gas passes through are offered on cowling panel.The cone of fiaring cone 304 can be located at discharge
Inside cone bucket 301, the upper plane higher than discharge cone bucket 301 can also be.
The bottom of each discharge cone bucket 301 is respectively equipped with discharging channel 301b, the end of each discharging channel 301b
It is respectively equipped with the cutting agency 9 in aggregate bin 302.Aggregate bin 302 is one in the bottommost clean unit, and remaining is net
It is front and rear two adjacent aggregate bins to change aggregate bin 302 in unit, and each aggregate bin 302 is rectangular pyramid structure, each side of aggregate bin
Wall is respectively provided with more than 35 ° of angle with horizontal plane, and aggregate bin side wall washes away component provided with anti-material（Do not show in accompanying drawing
Show）, anti-material washes away component can be using the shaped steel being welded on aggregate bin private side wall.A upper clean unit aggregate bin
Bottom be connected with the discharge nozzle 303 being passed into next clean unit aggregate bin.
The bottom of aggregate bin 302 of bottommost clean unit is provided with discharging mechanism 6, and discharging mechanism 6 is unloaded using double spool is star-like
Inert gas seal is used between glassware 601, two valve elements, realizes that the discharge, control activated carbon discharge velocity, isolation of activated carbon are empty
Gas, prevent leaking for flue gas.
The catalytic bed smoke eliminator of the present embodiment when in use, provides fresh using storage bin 5 to purifying column body
Activated carbon raw material, it is ensured that do not lack material in purifying column, moreover it is possible to the maintenance for avoiding flue gas from walking short circuit, protect level-sensing device, facilitate level-sensing device.
Activated carbon material is by storage bin 5 downwardly into activated carbon cloth system 2, and activated carbon material first enters first
In the cloth house steward 204 of individual clean unit, then enter in cloth house steward 204 the cloth supervisor of top clean unit
In 201 and top purifying column in, then by cloth supervisor 201 in enter in cloth branch pipe 202, material is again through tremie pipe 203
It is responsible for downwardly into the cloth of next clean unit in 201 and cloth branch pipe 202, final material can be evenly distributed to each
In purifying column body.Cloth supervisor 201 in each clean unit is connected on tremie pipe 203 by the way of in parallel, Ke Yibao
Fresh activated carbon material can be added to by demonstrate,proving in each purifying column body, it is ensured that each clean-up stage does not lack material, cloth supervisor 201
Upper equally distributed cloth branch pipe 202 ensure that activated carbon material full of whole purifying column body and be evenly distributed on purifying column
In body, equally distributed multiple cloth branch pipes can also reduce the height of activated carbon solid accumulation, so as to reduce cloth height.
Beds in the present embodiment use the form of fixed bed, can be full low-temperature catalyzed in beds filling
Agent, the uniform mixing of flue gas and ammonia is realized using ammonia compartment system, completes low-temperature denitration.Beds can be arranged on only
Change the intrinsic optional position of tower, as long as being provided in flue gas after desulfurization downstream.In purifying column body 1, in flue gas
SO2Sulfuric acid absorption is converted into the micropore of activated carbon with water, oxygen reaction, realizes desulfurizing and purifying；In activated carbon and catalyst
In bed under the catalytic action of low temperature catalyst, the NO in flue gasxSelectivity is carried out with the ammonia that ammonia compartment system 8 sprays to urge
Change reduction reaction, reaction produces N2And water, realize that denitration is purified.Finally, the flue gas up to standard after purification is from each clean unit
Flue gas discharge chamber in discharge.
Activated carbon material in each clean unit is fallen in discharge cone bucket 301 finally down, and multiple left and right are disposed adjacent
Discharge cone bucket 301 can realize uniform discharge, reduction discharge need height.Seam on the marker board 301a of discharge cone bucket 301
Gap and hole can supplied gas pass through, so former flue gas can make work at discharge cone bucket 301 even into in purifying column body 1
Property charcoal and flue gas fully contact, improve purification efficiency, effectively solve the problem of flue gas and activated carbon flow and mixed respectively.
Fiaring cone 304 in discharge cone bucket 301 can reduce piling height of the activated carbon material in discharge cone bucket 301, make activated carbon
Uniform effect it is more preferable.Gap and hole on the cowling panel of fiaring cone 304 can supplied gas pass through so that increase flue gas by cutting
Face, improves flue gas even distribution effect, the resistance that reduction flue gas is flowed up.
The activated carbon material dropped into discharge cone bucket 301 is entered by the discharging channel 301b of discharge cone bucket bottom to gather materials
In bucket 302, cutting agency can be such that material is smoothly drained into from discharge cone bucket in aggregate bin, and a upper purifying column is intrinsic
Material is drained into the aggregate bin of next purifying column body by the discharge nozzle 303 of aggregate bin bottom, so all clean units
Interior activated carbon material can be discharged smoothly.Anti- material, which washes away component, can reduce material aggregate bin side wall is washed away by force
Degree, reduces the abrasion of aggregate bin side wall.Segmented discharge nozzle 303 can avoid overall long tube easily asking by the blocking of material
Topic, while being easy to the regulation between each clean unit.Bottommost clean unit is using an aggregate bin 302, the aggregate bin volume
It is very big, space efficiency utilization can be improved, surge bunker when can be overhauled as each clean-up stage.Remaining clean unit uses two
Aggregate bin can reduce height of gathering materials.
The present embodiment can increase clean unit using multiple clean units form in parallel for the situation of big exhaust gas volumn
Quantity, because each clean unit is vertically arranged, the sectional area of purifying column will not be increased, floor space is small, especially fit
The situation limited for places such as transformation projects；Flue gas contacts uniform abundant with activated carbon, improves gas cleaning effect；Flue gas with
Activated carbon and low-temperature denitration catalyst contact are uniform abundant, and it is more economically high that activated carbon adds catalyst combination to be used for desulphurization denitration
Effect, using active carbon desulfurization and catalyst denitration, has played the respective advantage of two kinds of catalyst, plant investment is more saved, running cost
With lower, effect is more preferable.Clean unit bottom discharging is uniform, and activated carbon material can realize overall flow；Clean unit top
Cloth system space availability ratio is high, and activated carbon material can be uniformly distributed.And clean unit bottom aggregate bin quantity is few, volume
Greatly, in the case of nonserviceabling, the space for having abundance empties the activated carbon in purifying column, reduces turnaround of unit difficulty.
In the present embodiment, each clean unit can handle 80,000 Nm3Flue gas within/h, in actual use, according to item
The size of mesh exhaust gas volumn, can use any number of clean unit, can also be arranged in parallel at one using multiple purifiers
The form risen.
In actual use, the marker board of discharge cone bucket can use flase floor, also can use and use punched-plate, can also adopt
Use aperture plate；Equally, the cowling panel of fiaring cone can use flase floor, also can use and use punched-plate, can also use aperture plate.
Ammonia compartment system in the present invention can be using structure as shown in Figure 7 and Figure 8, and the ammonia compartment system is by more
Root gas distribution pipe 801 is constituted（Four are only shown in accompanying drawing）, each level of gas distribution pipe 801 and interval setting, in the every gas distribution pipe
801 both sides interval is connected with Angle connection part 802, and the side of adjacent two gas distribution pipes 801 connects through Angle connection part 802
Together；The notch of the Angle connection part 802 downwards, is located under corresponding angles shape connector 802 on the gas distribution pipe 801
Side is provided with qi-emitting hole 803.The Angle connection part 802 uses angle steel.The number of described qi-emitting hole 803 can be according to reality
Adjustment is needed, at least one qi-emitting hole 803 is typically set in the lower section of every Angle connection part 802.Certainly, when actual use,
The ammonia compartment system of multilayer up and down can also be used.
When clean unit is run, ammonia enters the notch of angular connector from the qi-emitting hole of gas distribution pipe, then from notch both sides
Overflow, realize multiple spot gas distribution, the uniform effect of ammonia is good, can in a short time rapidly with containing NOxFlue gas is well mixed.Will
The ammonia compartment system is used in activated carbon flue gases purification, realizes in activated carbon blanking region ammonification, reduces mixing
Required height, and the activated carbon fallen will not form dead angle at the top of Angle connection part, it is ensured that activated carbon and ammonia
Make full use of.
The present invention sets cutting agency 9 in the discharging channel 301b bottoms of discharge cone bucket 301, can be made using the cutting agency
Material can be entered smoothly in aggregate bin from discharge cone bucket, and the structure of cutting agency is as shown in Figure 9.Discharging channel
301b, is that the cross section vertically set up is square material channel, it includes long side wall and broad side walls, discharging channel square-section
Length-width ratio is more than 1.5 times, such as 6m × 0.3m.
The cutting agency of the present embodiment uses pneumatic cutting agency, and it includes being located at discharging channel 301b lower ending openings
Oblique bottom plate 902, the mutually close connection of the upper end of the bottom plate 902 and the one of discharging channel long side wall, bottom plate 902 is along to row
Expect that the direction of another long sidewall slope of passage is set, the lower end of bottom plate 902 and the long side wall of corresponding discharging channel and two rows
Material passage broad side walls collectively form the discharging opening 931.In another scheme, bottom plate 902 can be directly by the one of discharging channel
Individual sidewall slope is constituted, the angularly disposed composition bottom plate in direction from a such as part for discharging channel lower sides to corresponding side wall
902, the upper end of the bottom plate is located in discharging channel 301b and closely is connected with discharging channel side wall 911, the lower end of the bottom plate and
The lower end of corresponding discharging channel side wall 921 collectively forms a discharging opening 931.
It is provided with adjustable plate 906 on the discharging channel side wall at discharging opening 931, the bottom of the adjustable plate 906 is from row
The lower end of material channel side wall 921 is stretched out and is located at the top of the material stock plate 903.Adjustable plate 906 can be fixed by regulating bolt
It on the wall of discharging channel side, can also be movably connected on the wall of discharging channel side, be adjusted using regulation can be passed through when being flexibly connected
The upper and lower displacement of plate 906 adjusts the lower end of adjustable plate 906 the distance between to material stock plate 903, so as to adjust discharging size.
Plate washer 904 is provided with the lower section of bottom plate 902, gap is left between plate washer 904 and bottom plate 903, the width in the gap
For 4~8mm, the both sides in the gap are closed the gas passage 907 constituted from the upper end of plate washer to lower section by discharging channel side wall；
The lower end of plate washer 904 is provided with level or slightly inclined material stock plate 903, and the material stock plate 903 is located at the lower section of the discharging opening 931；
Angle between material stock plate 903 and horizontal plane is general to use less than 10 ° below 20 °（It can be 0 °）.
The lower ending opening of gas passage 907 passes to the upper surface of material stock plate 903, the upper end open and gas of gas passage 907
Dynamic component 905 is connected.Pneumatic members 905 include the air chamber 909 being fixedly connected on outside discharging channel 301b, the air chamber 909
Lateral length is consistent with discharging channel 301b lateral length；Compressed gas entrance 910, air chamber and gas are provided with air chamber 909
The upper end open of body passage 907 is connected.
Operationally, the solid particle material of activated carbon class is imported and to moving down mechanism from discharging channel 301b tops
It is dynamic, retread and moved to the direction of discharging opening 931 at bottom plate 902 to be displaced downwardly to.The position of regulation adjustable plate 906 makes solid particle material
Discharge quantity reach suitable size.Compressed gas is passed through into air chamber 909 by compressed gas entrance 910, compressed gas via
Gas passage 907 is uniformly blown on material stock plate 903, and the solid particle material on material stock plate 903 is blown out into material stock plate 903 makes material
The slow and smooth blanking in the case where not touching.
When this pneumatic cutting agency can be such that the frangible solid particulates material of activated carbon class is moved down in discharging channel,
Discharging opening first is shifted to through bottom plate barrier, is deposited in discharge outlet on material stock plate and self-assembling formation has the cone of certain stocking angle
Face；By controlling height between material stock plate and discharging channel side wall or by controlling to adjust the height between plate and material stock plate
Carry out the amount of control material via solid accumulation angle；Compressed gas is outwards blown out by compressed gas outlet or gas passage lower ending opening again
Body, blows material and slowly removes material stock plate, the process operation power consumption is low, mechanical rotating part under the effect of air multiplication principle
Contacted with material, make material slow in the case of not broken material and successfully remove pneumatic cutting agency；Mechanism structure
Simply, it is easy to process, fault-free, non-maintaining, has a wide range of application.
In other embodiments of the invention, cutting agency can also use mechanical cutting agency.
Above-described embodiment is the preferred embodiment of the invention, when specifically used, the quantity of the aggregate bin below discharge cone bucket
It can select according to actual needs.In addition, in same clean unit, can be responsible for using the cloth of asymmetric setting,
What the angle of inclination of cloth supervisor can also be adjusted flexibly according to actual blanking situation.
As shown in Figures 3 to 6, the present embodiment is urged for the structure of embodiment of catalytic bed gas cleaning unit of the present invention a kind of
Changing bed gas cleaning unit includes purifying column body 1, and purifying column body is provided with flue gas inlet plenum 101 and flue gas discharge chamber 102,
Purifying column body interior, which is provided with to be provided with ammonia compartment system 8, the purifying column body 1, is located at the top of ammonia compartment system 8
Beds 7.The top of the purifying column body 1 is provided with activated carbon cloth system 2, and the cloth system 2 includes dipping down
Cloth supervisor 201 is uniformly provided with downwards on symmetrical distribution, cloth supervisor 201 in oblique cloth supervisor 201, the present embodiment
The cloth branch pipe 202 of opening, the opening of each cloth branch pipe 202 is on same horizontal line.The cloth supervisor 201 and level
Face has more than 35 ° of angle, and the cloth branch pipe 202 is symmetrical in horizontal plane, the present embodiment clean unit to be set
The cloth put is responsible for 201 lower ends and moved closer to.The bottom of the purifying column body 1 is provided with discharge system 3, the discharge system 3
The discharge cone bucket 301 being disposed adjacent including left and right, each discharge cone bucket 301 includes left and right two and gradually leaned on diagonally downward respectively
Near marker board 301a, each marker board 301a extend along the longitudinal direction, have on marker board 301a gap that supplied gas passes through or
Hole, the flue gas inlet plenum 101 is arranged on the position between two adjacent discharge cone buckets 301 on purifying column body 1.Institute
The fiaring cone 304 set upward provided with tip in discharge cone bucket 301 is stated, fiaring cone 304 includes left and right two and tilted upward gradually
Close cowling panel, each cowling panel extends along the longitudinal direction, and the gap or hole passed through for material is offered on cowling panel.Fiaring cone
304 cone can be located inside discharge cone bucket, can also be the upper plane higher than discharge cone bucket.Discharge cone bucket in the present embodiment
301 lower section is provided with the aggregate bin 302 of pyramid shape adjacent before and after two, and each discharging channel 301b end is respectively equipped with position
In the cutting agency 9 in aggregate bin 302, each side wall of aggregate bin is respectively provided with more than 35 ° of angle, aggregate bin side wall with horizontal plane
Component is washed away in face provided with anti-material（Do not shown in accompanying drawing）, when it is implemented, anti-material wash away component can be using being welded on
Shaped steel on aggregate bin private side wall.
The gas cleaning unit of the present embodiment is when in use, it would be desirable to which the flue gas of purification is incorporated into purification from flue gas inlet plenum
In tower body, the cloth branch pipe that activated carbon material is responsible for by cloth is evenly distributed in purifying column body, and cloth supervisor is upper equal
The cloth branch pipe of even distribution ensure that activated carbon material is full of whole purifying column body and is evenly distributed in purifying column body,
Equally distributed multiple cloth branch pipes can also reduce the height of activated carbon solid accumulation, so as to reduce cloth height.The present embodiment
In beds use the form of fixed bed, can be distributed using ammonia in the full low temperature catalyst of beds filling and be
System realizes the uniform mixing of flue gas and ammonia, completes low-temperature denitration.In purifying column body, the SO in flue gas2It is anti-with water, oxygen
Sulfuric acid absorption should be converted into the micropore of activated carbon, desulfurizing and purifying is realized；It is low-temperature catalyzed in activated carbon and beds
Under the catalytic action of agent, the NO in flue gasxWith the ammonia progress selective catalytic reduction reaction being passed through, reaction produces N2And water, it is real
Existing denitration purification.Finally, the flue gas up to standard after purification is discharged from the flue gas discharge chamber in each clean unit.Each purification is single
Activated carbon material in member is fallen in discharge cone bucket finally down, and the discharge cone bucket that multiple left and right are disposed adjacent can realize uniform row
The height that material, reduction discharge need.Cutting agency can be such that material is smoothly drained into from discharge cone bucket in aggregate bin, anti-material
Material can be reduced to aggregate bin side wall scouring intensity by washing away component, reduce the abrasion of aggregate bin side wall.
Claims (10)
1. a kind of catalytic bed smoke eliminator, including at least two clean units, clean unit include purifying column body（1）,
Purifying column body（1）It is provided with flue gas inlet plenum（101）With flue gas discharge chamber（102）, purifying column body（1）Inside is provided with ammonia
Compartment system（8）, it is characterised in that：Each clean unit arranges vertically successively, the purifying column body（1）Interior be provided with is located at
Ammonia compartment system（8）The beds of top（7）, each purifying column（1）The top of body is respectively equipped with active carbon cloth
Material system（2）, the cloth system（2）Cloth including tilting down setting is responsible for（201）, cloth supervisor（201）It is provided with
The cloth branch pipe that Open Side Down（202）, each cloth branch pipe（202）Opening on same horizontal line, top clean unit
Top be provided with storage bin（5）, storage bin（5）Top be provided with feeding mechanism（4）, the cloth supervisor of top clean unit
（201）It is arranged on storage bin（5）Lower section, each purifying column body cloth supervisor（201）Between be provided with vertical tremie pipe
（203）, the cloth supervisor of top clean unit（201）The cloth of discharge end and remaining clean unit is responsible for（201）Feed end
It is both connected to tremie pipe（203）On, each purifying column body（1）Bottom be respectively equipped with discharge system（3）, the discharge system
System（3）Including discharge cone bucket（301）Be arranged on discharge cone bucket（301）The aggregate bin of lower section（302）, a upper clean unit collection
Hopper（302）Bottom be connected with and be passed into next clean unit aggregate bin（302）Interior discharge nozzle（303）, bottommost is net
Change unit aggregate bin（302）Bottom be provided with discharging mechanism（6）, the flue gas inlet plenum（101）It is arranged on purifying column body bottom
Portion position, flue gas discharge chamber（102）It is arranged on the position of purifying column bodies top, the ammonia compartment system（8）It is arranged on cloth
Expect branch pipe（202）The top position of opening, each discharge cone bucket（301）Bottom be respectively equipped with discharging channel（301b）, institute
State each discharging channel（301b）End be respectively equipped with positioned at aggregate bin（302）Interior cutting agency（9）, cutting agency（9）Bag
Include and be located at discharging channel（301b）Oblique bottom plate at lower ending opening（902）, the bottom plate（902）Upper end and discharging channel
The mutually close connection, bottom plate of one long side wall（902）Set along to the direction of another long sidewall slope of discharging channel, bottom plate
（902）Lower end collectively form discharging opening with the corresponding long side wall of discharging channel and two discharging channel broad side walls（931）,
Positioned at discharging opening（931）The discharging channel side wall at place is provided with adjustable plate（906）, the adjustable plate（906）Bottom it is logical from discharge
Road side wall（921）Lower end stretch out and be located at material stock plate（903）Top, in bottom plate（902）Lower section be provided with plate washer（904）,
Plate washer（904）With bottom plate（902）Between leave gap, the both sides in the gap are constituted from the upper of plate washer by the closing of discharging channel side wall
Hold to the gas passage of lower section（907）；In plate washer（904）Lower end be provided with level or slightly inclined material stock plate（903）, the material stock
Plate（903）Positioned at the discharging opening（931）Lower section；Gas passage（907）Lower ending opening pass to material stock plate（903）Upper table
Face, gas passage（907）Upper end open and pneumatic members（905）It is connected, pneumatic members（905）Including the row of being fixedly connected on
Expect passage（301b）Outer air chamber（909）, the air chamber（909）Lateral length and discharging channel（301b）Lateral length one
Cause；In air chamber（909）It is provided with compressed gas entrance（910）, air chamber and gas passage（907）Upper end open be connected.
2. catalytic bed smoke eliminator according to claim 1, it is characterised in that：Cloth in each clean unit
Supervisor（201）Left and right arrangement, the storage bin（5）Bottom centre position is fixedly connected with cloth house steward（204）, cloth house steward
（204）End extend into top clean unit, each cloth supervisor（201）Angle between horizontal plane is at 35 °
More than, each cloth branch pipe（202）It is each perpendicular to the cloth supervisor that left and right is set in horizontal plane, the top clean unit
（201）Upper end moves closer to and is connected to cloth house steward（204）On, the cloth supervisor that left and right is set in remaining clean unit
（201）Lower end is moved closer to.
3. catalytic bed smoke eliminator according to claim 1 or 2, it is characterised in that：Each discharge cone bucket（301）
Include the marker board that left and right two is moved closer to diagonally downward respectively（301a）, marker board（301a）It is upper to have what supplied gas passed through
Gap or hole, the flue gas inlet plenum（101）It is arranged on purifying column body close to two adjacent discharge cone buckets（301）Between
Position.
4. catalytic bed smoke eliminator according to claim 1 or 2, it is characterised in that：The discharge cone bucket（301）It is interior
The fiaring cone set upward provided with tip（304）, fiaring cone（304）Including left and right, two tilt upward the rectification moved closer to
Gap or hole that supplied gas passes through are offered on plate, cowling panel.
5. catalytic bed smoke eliminator according to claim 1 or 2, it is characterised in that：The bottommost clean unit
Middle aggregate bin（302）For one, aggregate bin in remaining clean unit（302）For front and rear two adjacent aggregate bins, aggregate bin
（302）Each side wall is respectively provided with more than 35 ° of angle, aggregate bin with horizontal plane（302）Side wall washes away structure provided with anti-material
Part.
6. a kind of catalytic bed gas cleaning unit, including purifying column body, purifying column body（1）It is provided with flue gas inlet plenum
（101）With flue gas discharge chamber（102）, purifying column body（1）Inside is provided with ammonia compartment system（8）, it is characterised in that：It is described net
Change tower body（1）Interior be provided with is located at ammonia compartment system（8）The beds of top（7）, the purifying column body（1）It is upper
Portion is provided with activated carbon cloth system（2）, the cloth system（2）Cloth including tilting down setting is responsible for（201）, cloth master
Pipe（201）Provided with the cloth branch pipe that Open Side Down（202）, each cloth branch pipe（202）Opening on same horizontal line, institute
State purifying column body（1）Bottom be provided with discharge system（3）, the discharge system（3）Including discharge cone bucket（301）, the cigarette
Gas inlet plenum（101）It is arranged on purifying column body bottom portion position, flue gas discharge chamber（102）It is arranged on the position of purifying column bodies top
Put, the ammonia compartment system（8）It is arranged on cloth branch pipe（202）The top position of opening, each discharge cone bucket（301）'s
Bottom is respectively equipped with discharging channel（301b）, each discharging channel（301b）End be respectively equipped with positioned at aggregate bin（302）
Interior cutting agency（9）, cutting agency（9）Including being located at discharging channel（301b）Oblique bottom plate at lower ending opening（902）,
The bottom plate（902）Upper end and discharging channel the mutually close connection, bottom plate of one long side wall（902）Along another to discharging channel
The direction of long sidewall slope is set, bottom plate（902）Lower end and the corresponding long side wall of discharging channel and two discharging channels it is wide
Side wall collectively forms discharging opening（931）, positioned at discharging opening（931）The discharging channel side wall at place is provided with adjustable plate（906）, should
Adjustable plate（906）Bottom from discharging channel side wall（921）Lower end stretch out and be located at material stock plate（903）Top, in bottom plate
（902）Lower section be provided with plate washer（904）, plate washer（904）With bottom plate（902）Between leave gap, the both sides in the gap are by discharge
Channel side wall closing constitutes the gas passage from the upper end of plate washer to lower section（907）；In plate washer（904）Lower end provided with level or
Slightly inclined material stock plate（903）, the material stock plate（903）Positioned at the discharging opening（931）Lower section；Gas passage（907）Under
End opening passes to material stock plate（903）Upper surface, gas passage（907）Upper end open and pneumatic members（905）It is connected, gas
Dynamic component（905）Including being fixedly connected on discharging channel（301b）Outer air chamber（909）, the air chamber（909）Lateral length with
Discharging channel（301b）Lateral length it is consistent；In air chamber（909）It is provided with compressed gas entrance（910）, air chamber and gas lead to
Road（907）Upper end open be connected.
7. catalytic bed gas cleaning unit according to claim 6, it is characterised in that：The cloth supervisor（201）Left and right
Arrangement, the cloth supervisor（201）Angle between horizontal plane is more than 35 °, the cloth branch pipe（202）Perpendicular to level
The cloth supervisor that left and right is set in face, clean unit（201）Lower end or upper end are moved closer to.
8. the catalytic bed gas cleaning unit according to claim 6 or 7, it is characterised in that：Each discharge cone bucket（301）
Include the marker board that left and right two is moved closer to diagonally downward respectively（301a）, marker board（301a）It is upper to have what supplied gas passed through
Gap or hole, the flue gas inlet plenum（101）It is arranged on purifying column body（1）Upper close two adjacent discharge cone buckets（301）
Between position.
9. the catalytic bed gas cleaning unit according to claim 6 or 7, it is characterised in that：The discharge cone bucket（301）It is interior
The fiaring cone set upward provided with tip（304）, fiaring cone（304）Including left and right, two tilt upward the rectification moved closer to
Gap or hole that supplied gas passes through are offered on plate, cowling panel.
10. the catalytic bed gas cleaning unit according to claim 6 or 7, it is characterised in that：The discharge cone bucket（301）
Lower section is provided with the aggregate bin of pyramid shape（302）, aggregate bin（302）Each side wall is respectively provided with more than 35 ° of angle with horizontal plane,
Aggregate bin（302）Side wall washes away component provided with anti-material.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510251701.7A CN104941445B (en) | 2015-05-18 | 2015-05-18 | A kind of catalytic bed smoke eliminator and its clean unit |
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| CN201510251701.7A CN104941445B (en) | 2015-05-18 | 2015-05-18 | A kind of catalytic bed smoke eliminator and its clean unit |
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| CN104941445B true CN104941445B (en) | 2017-10-13 |
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| CN109827787B (en) * | 2017-11-23 | 2021-04-20 | 中冶长天国际工程有限责任公司 | Activated carbon flue gas purification system and method for measuring discharge efficiency of roller feeder thereof |
| CN109827622B (en) * | 2017-11-23 | 2021-07-20 | 中冶长天国际工程有限责任公司 | Activated carbon flue gas purification system and discharge flow measuring method of roller feeder thereof |
| CN109827685B (en) * | 2017-11-23 | 2021-04-20 | 中冶长天国际工程有限责任公司 | Activated carbon flue gas purification system and roller feeder discharging efficiency measuring method |
| CN109821344A (en) * | 2017-11-23 | 2019-05-31 | 中冶长天国际工程有限责任公司 | Active carbon flue gas purification system, roll feeder discharge flow measurement method |
| CN216457869U (en) * | 2021-11-05 | 2022-05-10 | 霍斯特·格罗霍夫斯基 | Device for purifying exhaust gases of a combustion process |
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| DE950121C (en) * | 1949-10-01 | 1956-10-04 | Metallgesellschaft Ag | Process for the recovery of valuable substances from gaseous media by adsorbents |
| DE3732424A1 (en) * | 1987-09-25 | 1989-04-06 | Steag Ag | REACTOR PLANT FOR TREATING GASES AND SOLID MATERIAL IN THE COUNTERFLOW |
| DE4004911C2 (en) * | 1990-02-16 | 1999-09-23 | Horst Grochowski | Method and device for treating at least one fluid by means of a solid present in bulk in a moving bed reactor |
| WO2008071215A1 (en) * | 2006-12-14 | 2008-06-19 | Horst Grochowski | Method and device for scrubbing effluent gases from a sintering process for ores or other metal-containing materials in metal production |
| CN204746100U (en) * | 2015-05-18 | 2015-11-11 | 吴友琴 | Catalysis bed gas cleaning device and purification unit thereof |
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Effective date of registration: 20170922 Address after: 210012 room 801-9, building, No. 106, Yuhuatai Road, Nanjing, Jiangsu Patentee after: Nanjing Public Environmental Protection Technology Co., Ltd. Address before: 210032 Jiangsu Province, Nanjing high tech Zone of Pukou City, New Road No. 5 Patentee before: Wu Youqin |
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