CN108295617A - A kind of high-temperature flue gas purification absorption tower and apply its flue gas processing method - Google Patents
A kind of high-temperature flue gas purification absorption tower and apply its flue gas processing method Download PDFInfo
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- CN108295617A CN108295617A CN201810134403.3A CN201810134403A CN108295617A CN 108295617 A CN108295617 A CN 108295617A CN 201810134403 A CN201810134403 A CN 201810134403A CN 108295617 A CN108295617 A CN 108295617A
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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
- B01D53/04—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 stationary adsorbents
- B01D53/0407—Constructional details of adsorbing systems
- B01D53/0423—Beds in columns
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D49/00—Separating dispersed particles from gases, air or vapours by other methods
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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
- B01D53/04—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 stationary adsorbents
- B01D53/0407—Constructional details of adsorbing systems
- B01D53/0438—Cooling or heating systems
-
- 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
- B01D53/04—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 stationary adsorbents
- B01D53/0454—Controlling adsorption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/30—Sulfur compounds
- B01D2257/302—Sulfur oxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/40—Nitrogen compounds
- B01D2257/404—Nitrogen oxides other than dinitrogen oxide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
Abstract
A kind of high-temperature flue gas purification absorption tower and apply its high-temperature flue gas processing method.Longitudinal adsorbent layer surrounded by partition board and tower body inner wall is provided in the tower body on high-temperature flue gas purification absorption tower.Flue is formed between the partition board of adsorbent layer and the inner wall of tower body.Filled with the adsorbent for fume treatment in adsorbent layer.Tower body is provided with air inlet, gas outlet, adsorbent feed inlet, adsorbent discharge port.Air inlet is set to the lower part or middle part of tower body, and gas outlet is set to the middle part or top of tower body.Feed inlet is set to the top of tower body, and is being externally connected to an adsorbent surge bunker.Discharge port is set to the bottom of tower body.High-temperature flue gas purification absorption tower is additionally provided with a cooling pipe network, and cooling pipe network is interted inside adsorbent layer, cooling medium is passed through adsorbent layer, so that adsorbent layer cools down.
Description
Technical field
The present invention relates to fume treatment technology, more particularly to a kind of high-temperature flue gas purification absorption tower and apply its flue gas
Processing method.
Background technology
For the high-temperature flue gas generated in industrial production, current purified treatment method can be divided mainly into wet method and dry method
Two kinds.Wet desulphurization early mature application and the industries such as steel, coking, but generate waste water in the process, after waste residue is brought
Process problem is increasingly difficult to solve.Dry desulfurization is the preferentially selectively method of desulfurization from now on since it is less to generate waste.It is de-
It is SCR catalysis methods that nitre, which is mainly concentrated,.SCR catalyst includes high temperature, medium temperature, low temperature three types, according to different production technologies
Different flue gas characteristics selects suitable catalyst.Activated carbon method gas cleaning be it is a kind of can simultaneous SO_2 and NO removal technology, mesh
The preceding technique using more mature, can not only remove the SO in flue gas simultaneously in steel industry2And NOx, also have and do not consume
Water, non-secondary pollution, the dust in effective removing flue gas and heavy metal (such as mercury) pollutant can pass through adsorbent reactivation time
The advantages that receiving Sulphur ressource can be very good the gas cleaning for being applied to the fields such as coke oven, cement, glass, waste incineration.
Longevity for handling the excessively high adsorbent that can influence fume treatment of temperature in high temperature high-temperature flue gas purification absorbing tower
Life, long-time service can seriously affect sorbent life or even adsorbent direct oxidation is made to inactivate, more serious tower body to be made to accelerate
Aged deterioration causes production accident.In the design of the prior art generally by the way of advance flue gas cool-down, but place can be increased
Manage equipment and technological process.Therefore then need one kind that can regulate and control absorption tower on the absorption tower of high-temperature flue gas integrated treatment
The design of tower body temperature reduces the operation risk of technique to ensure the safety coefficient of tower body.
Invention content
For the above-mentioned prior art the problem of, the present invention provide a kind of high-temperature flue gas purification absorption tower, for height
The integrated treatment of warm flue gas can regulate and control tower body temperature, and tower body temperature is made to be maintained at safe and efficient level.
The present invention provides a kind of high-temperature flue gas purification absorption tower, is applied to high-temperature flue gas purification and absorbs.The high-temperature flue gas
It purifies and is provided with longitudinal adsorbent layer surrounded by porous barrier and tower body inner wall in the tower body on absorption tower.It is described it is porous every
Flue is formed between plate and the inner wall of the tower body.Filled with the adsorbent for fume treatment in the adsorbent layer.The tower
Body is provided with air inlet, gas outlet, adsorbent feed inlet, adsorbent discharge port.The air inlet is set under the tower body
Portion or middle part, the gas outlet are set to the top portion or middle part of the tower body.The feed inlet is set to the top of the tower body
Portion, and it is being externally connected to an adsorbent surge bunker.The discharge port is set to the bottom of the tower body.The high-temperature flue gas
Purification absorption tower is additionally provided with a cooling pipe network, and the cooling pipe network is interted inside the adsorbent layer, and cooling medium is led to
Enter the adsorbent layer, so that adsorbent layer cools down.The tower body on high-temperature flue gas purification absorption tower is internally provided with temp measuring system,
To monitor tower vivo environment temperature.
In one aspect of the invention, cooling pipe network includes main line and secondary pipes.The main line is arranged described
Outside tower body, there is at least one branch in the vertical direction, flow valve is provided in each branch, and indulged after flow valve
There are multiple secondary pipes upwards, intert into the tower body.Multiple secondary pipes intert inside the adsorbent layer,
And the branch pipe with horizontal direction, cooling medium is passed through the adsorbent layer.
In one aspect of the invention, sealing welding at the secondary pipes end, interts away from the secondary pipes into the suction
The inner wall 30-150cm of the tower body of the other side of attached oxidant layer.Intert the portion into the adsorbent layer on the secondary pipes
Divide and be evenly distributed with aperture, hole diameter is less than adsorbent minimum diameter.
In one aspect of the invention, hole separation is distributed, and radially adjacent two small pitch of holes of pipeline is 10cm-30cm,
The circumferentially upper adjacent two aperture orientation of pipeline is radially staggered 45 °.
In one aspect of the invention, at a distance of 30cm-150cm, multiple secondary pipes between multiple secondary pipes
At a distance of 30cm-150cm between road, between the tube wall and the tower body inner wall for surrounding adsorbent layer of multiple secondary pipes it is horizontal apart
30cm-150cm。
In one aspect of the invention, air inlet and the gas outlet are located at the opposite sides of the tower body, and institute
It states air inlet and the gas outlet may be contained within the middle part of the tower body；Or the air inlet and the gas outlet are positioned at described
The homonymy of tower body, the air inlet are located at the lower part of the tower body, and the gas outlet is located at the top of the tower body.
In one aspect of the invention, adsorbent layer is divided into multilayer, the feed inlet and the discharge port by porous barrier
It is also equipped with multiple, each individual adsorbent layer being separated out corresponds to a feed inlet and a discharge port respectively.
In one aspect of the invention, the aperture of porous barrier is less than the aperture of adsorbent；The aperture of the porous barrier
Less than 6mm；The percent opening of the porous barrier is 35%-45%.
In one aspect of the invention, tower body is cube；The tower body length is 2m-9m, width 3m-6m, height
For 8m-25m.
The present invention also provides a kind of high-temperature flue gas purification processing methods, are absorbed using high-temperature flue gas purification as described above
Tower.Step includes：Pending flue gas enters the absorption tower from the air inlet, is handled through the adsorbent layer described in absorbing
SO in pending flue gas2And NOxIt is discharged afterwards by the gas outlet.Adsorbent in the adsorbent layer from the feed inlet into
Enter the adsorbent layer, the tower body is discharged from the discharge port.When the tower body temperature is higher than preset temperature, cooling tube
Cooling medium is passed through in the tower body by net, reduces tower body temperature, and tower body temperature is made to be maintained at the preferable of adsorbent work
Temperature.
The beneficial effects of the present invention are by the setting of cooling pipe network, enable cooling medium to be passed directly into tower body
Portion reduces the temperature in tower body.So that tower body temperature is maintained in the section of a stabilization, effectively extends the use of adsorbent
Service life has ensured the safety coefficient of tower body, reduces the operation risk of technique.
Description of the drawings
Fig. 1 is the structural schematic diagram of one embodiment of the present of invention；
Fig. 2 is the pipeline configuration schematic diagram of the secondary pipes of one embodiment of the present of invention；
Fig. 3 is the structural schematic diagram of the cooling pipe network side of one embodiment of the present of invention；
Fig. 4 is the structural schematic diagram of an alternative embodiment of the invention；
Fig. 5 is the structural schematic diagram of another embodiment of the present invention.
Wherein, the reference numerals are as follows：
1 air inlet
2 gas outlets
3 feed inlets
4 discharge ports
5 adsorbent surge bunkers
6 porous barriers
7 adsorbent layers
8 cooling pipe networks
81 main lines
82 secondary pipes
9 baffles
Specific implementation mode
Below with reference to attached drawing, specific embodiment through the invention carries out in detail technical solution provided by the present invention
Describe in detail it is bright, so that those skilled in the art carry out more specific understanding to the present invention.It should be noted that following embodiment institute
The technical solution and Figure of description of offer are only used for the present invention will be described, are not intended to limit the present invention.
In following embodiment and attached drawing, has been omitted from and be not shown with the indirect relevant element of the present invention, step；And it is each in attached drawing
The size relationship of interelement is only to ask and be readily understood by, non-limiting actual ratio.
One embodiment of the invention is described in detailed below, to be carried out specifically to technical solution provided by the present invention
It is bright, so that those skilled in the art carry out more specific understanding to the present invention.
It is the structure on the high-temperature flue gas purification absorption tower that a preferred embodiment of the present invention provides referring to Fig. 1-Fig. 3, Fig. 1
Schematic diagram；Fig. 2 is the pipeline configuration schematic diagram of the secondary pipes of one embodiment of the present of invention；Fig. 3 is the reality of the present invention
Apply the structural schematic diagram (not showing flue) of the cooling pipe network side of example.In a preferred embodiment of the invention, high temperature cigarette
It is provided with longitudinal adsorbent layer 7 surrounded by porous barrier 6 and tower body inner wall in the tower body on gas purification absorption tower.It is porous every
Flue is formed between 6 partition board of plate and the inner wall of the tower body on high-temperature flue gas purification absorption tower.It is filled, is inhaled by adsorbent in adsorbent layer 7
The attached dose of feed inlet 3 from the top of tower body enters, and is moved downward along tower body adsorbent layer 7 by given pace by gravity, from
Tower body is discharged in the discharge port 4 of tower body bottom.Adsorbent first prestores in adsorbent surge bunker 5 before entering tower body, to reduce
Adsorbent enters the rate of tower body, in case adsorbent itself reduces service efficiency because excessive velocities occur to be crushed with tower body collision,
Also it avoids that tower body is caused to damage.The tower body on high-temperature flue gas purification absorption tower is provided with air inlet 1 and gas outlet 2.Porous barrier
On be evenly distributed with aperture, the aperture of aperture is less than the aperture of adsorbent.In the present embodiment, air inlet 1 is set to tower body
Lower part, gas outlet 2 are set to the top of tower body, and air inlet and gas outlet are located at the homonymy of tower body.In some other embodiment
In, air inlet and gas outlet can also be located at opposite sides, those skilled in the art can basis positioned at the homonymy of tower body
Actual needs is selected.In the present embodiment, it is additionally provided with a baffle 9 in the flue of air inlet connection, is led with carrying out flue gas
Stream, enables the flue gas being passed through to be directly entered adsorbent layer 7.It is both provided at the top and bottom of each flue and in working space
Airflow uniform distribution device (not shown) ensures the flow field homogeneity and mixing uniformity of flue gas and ammonia.High-temperature flue gas purification
The tower body on absorption tower is internally provided with temp measuring system, to monitor tower vivo environment temperature.Typically, temp measuring system includes point
Multiple temperature probes of the cloth inside tower body and the data collection process equipment being arranged outside tower body and warning device, with
For monitoring tower body temperature, and alarm is sent out when tower body temperature is higher than preset temperature, in order to start cooling step, control
Tower body temperature processed.
As shown in figures 1 and 3, the high-temperature flue gas purification absorption tower is additionally provided with a cooling pipe network 8, in tower body
Inside cooling medium, which is passed through in adsorbent layer 7, when the temperature is excessively high makes the reduction of tower body temperature.Cooling pipe network 8 includes main pipeline 81
With secondary pipes 82.In the present embodiment, main line 81 is arranged outside tower body, there is multiple branches in the vertical direction, each
Flow valve is provided in branch.After flow valve, each branch continues branch in the vertical direction, forms multiple secondary pipes
82, secondary pipes 82 intert the tower body into high-temperature flue gas purification absorption tower, into adsorbent layer 7.The secondary pipes of different height
Road 82 is additionally provided with multiple branch pipes in the horizontal direction, to expand the contact surface of pipeline and space in adsorbent layer 7.It is each high
The pipeline end welding of the secondary pipes 82 of degree is shut, away from corresponding tower body inner wall 30cm-150cm.Between each secondary pipes 82
Distance 30cm-150cm；Horizontal distance 30cm-150cm between each secondary pipes 82 and the tower body inner wall for surrounding adsorbent layer.It is more
A secondary pipes 82 intert into being evenly distributed with aperture (as shown in Figure 2), aperture on the part of adsorbent layer 7 and its branch pipe
Diameter is less than adsorbent minimum diameter.Adjacent apertures are staggered 45 ° along pipeline axial direction in circumferential direction.
In practical application, pending flue gas enters absorption tower from air inlet 1, is handled through adsorbent layer 7 and absorbs pending cigarette
SO in gas2And NOxIt is discharged afterwards by gas outlet 2.In the present embodiment, pending flue gas by after an adsorbent layer 7 along right
The flue in face direction rises to tower top, because under the impetus of tower top top plate and lower section air-flow, then passes through an adsorbent layer 7
It is discharged again by gas outlet 2 afterwards.Adsorbent in adsorbent layer 7 enters adsorbent layer from feed inlet 3, and tower is discharged from discharge port 4
Body.When tower body temperature is higher than preset temperature, cooling medium is passed through in tower body by cooling pipe network 8, is reduced tower body temperature, is made
Tower body temperature is maintained at the preferred temperature of adsorbent work.
In above-described embodiment,
The percent opening of porous barrier 6 is 35%-45%, such as can be selected as 35%, 38%, 40%, 42%, 44%
Or 45%.On porous barrier 6 aperture of aperture be preferably 6mm hereinafter, can for example be selected as 6mm, 5.5mm, 5mm, 4.5mm,
4mm, 3.5mm, 3mm, 2.5mm or 2mm.
The pipeline end of the secondary pipes 82 of each height is away from corresponding tower body inner wall distance 30cm-150cm.Such as it can
Think 30cm, 40cm, 50cm, 60cm, 70cm, 80cm, 90cm, 100cm, 110cm, 120cm, 130cm, 140cm or 150cm.
Distance 30cm-150cm between each secondary pipes 82 and between pipeline and the tower body inner wall for crossing adsorbent layer,
For example, spacing can be 30cm, 40cm, 50cm, 60cm, 70cm, 80cm,
90cm, 100cm, 110cm, 120cm, 130cm, 140cm or 150cm.
On the pipeline of each secondary pipes 82 between adjacent apertures spacing distance in 10cm-30cm, as 10cm, 15cm, 20cm,
25cm or 30cm.
The thickness of adsorbent layer is 1.5m-2.5m, preferably 2m.
The tower body on high-temperature flue gas purification absorption tower is preferably cube.Preferably, the length of tower body is 2m-9m, for example,
2m, 3m, 4m, 5m, 6m, 7m, 8m or 9m.Width is 3m-6m, for example, 3m, 3.5m, 4m, 4.5m, 5m, 5.5m or 6m.Highly
For 8m-25m, for example, 8m, 10m, 12m, 14m, 16m, 18m, 20m, 22m, 24m or 25m.
The selection of the above numerical value is only the numerical value of some currently preferred embodiments of the present invention, and those skilled in the art can basis
Actual needs chooses other numerical value in preferred scope, and the present invention is not limited thereto.
Some the other embodiment of the present invention introduced below, in order to which those skilled in the art are better understood from the present invention.
The structural schematic diagram of another embodiment of the present invention is shown referring to Fig. 4, Fig. 4.Portion wherein same as the previously described embodiments
Point it will not go into details.Unlike the embodiments above, air inlet 1 is located at the opposite sides of tower body with gas outlet 2, has certain
Difference in height, but the position among all relatively close tower body, and (the cooling pipe network part figure of baffle 9 is not provided at air inlet
In be not shown).It is provided with cushion space between flue and air inlet, flue and gas outlet.Pending flue gas from air inlet 1 into
Cushion space is introduced into after entering, it is uniformly distributed in cushion space, flue is entered back into, enters adsorbent layer 7 later.Because gas only leads to
An adsorbent layer 7 is crossed, therefore being provided with cushion space keeps gas more uniformly distributed in space, then by adsorbent layer 7,
So that adsorbent layer 7 contacts gas to greatest extent, the case where not reaching gas close to tower top or tower body part is avoided.
The structural schematic diagram of further embodiment of this invention is shown referring to Fig. 5, Fig. 5.In the present embodiment, with the implementation of Fig. 1
Difference lies in adsorbent layer 7 is divided into two layers example by porous barrier 6, and every layer be separated out corresponds to 3 He of feed inlet respectively
One discharge port 4.And two layers of thickness differs.Can realize different absorption purposes successively, such as successively realize dust-removal and desulfurizing and
Desulphurization denitration (at this time because level is less, sweetening process has generation in two parts, without specific boundary).The present invention's
In some other embodiment, adsorbent layer 7 can be divided into it is multiple, such as 2 of the present embodiment or 3 or more.As separated
When being 3 layers, can respectively successively realize dedusting, desulphurization and denitration purpose.Those skilled in the art can select according to actual needs
The number of plies of separation, the present invention is not limited thereto.
In the present invention, each adsorbent thickness can be different, overall thickness and can be 1.5m-2.5m, for example, 1.5m,
1.8m, 2m, 2.2m or 2.5m.Preferably, adsorbent layer summation is 2m.Each layer thickness can be divided into such as 20cm, 80cm and
Two layers of three layers of 100cm or 50cm and 150cm.Those skilled in the art can also select other thick according to actual needs
Degree.
The high-temperature flue gas purification absorption tower provided according to the present invention, the present invention also provides a kind of high-temperature flue gas processing methods：
Including：Pending flue gas enters absorption tower from air inlet 1, and the SO absorbed in pending flue gas is handled through adsorbent layer 72And NOx
It is discharged afterwards by gas outlet 2.Adsorbent in adsorbent layer 7 enters adsorbent layer from feed inlet 3, and tower body is discharged from discharge port 4,
Across displacement is formed, so that the unused adsorbent in adsorbent layer is maintained at certain ratio.The adsorbent that tower body is discharged can
It is delivered to regenerative system and carries out desorption and regeneration.When tower body temperature is higher than preset temperature, cooling pipe network 8 leads to cooling medium
Enter in tower body, reduce tower body temperature, tower body temperature is made to be maintained at the preferred temperature of adsorbent work.
Selected adsorbent in the present invention, it includes but not limited to activated carbon, activated coke, roundlet column solid that can be
Catalyst or large grained solid catalyst, it is typical but be non-limiting combination and have：The combination of activated carbon and activated coke, it is living
The combination of property charcoal and roundlet column solid catalyst, the combination of activated coke and large grained solid catalyst, activated carbon, activity
Burnt and roundlet column solid catalyst combination etc., preferably activated carbon.
The beneficial effects of the present invention are：It provides a kind of high-temperature flue gas purification absorption tower and applies its high-temperature flue gas
Processing method.High-temperature flue gas purification absorption tower can purified treatment flue gas flow be 4000-70000Nm3/ h, each pollutant
Removal efficiency be respectively 50% (dedusting and heavy metal), 98% (desulfurization) and 80% (denitration) or more.Cooling proposed by the present invention
Pipe network can effectively reduce the temperature in absorption tower when tower body internal temperature is higher, control the temperature on absorption tower, to protect
It demonstrate,proves production safety to carry out, ensures the purification efficiency on absorption tower, efficiently complete adsorbing and removing process.
It is the absorption tower provided by the present invention for fume treatment and some using its smoke processing system above
Embodiment passes through the explanation of embodiment, it is believed that those skilled in the art can understand technical scheme of the present invention and its running is former
Reason.However these are only the preferred embodiment of the present invention, not the present invention is limited.Those skilled in the art can basis
Actual demand is appropriately modified technical solution provided by the present invention, makes an amendment and equivalent transformation is all without departing from the present invention
Range claimed.Present invention interest field claimed, when being subject to appended claims.
Claims (10)
1. a kind of high-temperature flue gas purification absorption tower, wherein：
Longitudinal absorption surrounded by porous barrier and tower body inner wall is provided in the tower body on the high-temperature flue gas purification absorption tower
Oxidant layer；Flue is formed between the porous barrier and the inner wall of the tower body；Filled with for fume treatment in the adsorbent layer
Adsorbent；The tower body is provided with air inlet, gas outlet, adsorbent feed inlet, adsorbent discharge port；The air inlet setting
In the lower part or middle part of the tower body, the gas outlet is set to the top portion or middle part of the tower body；The feed inlet setting
In the top of the tower body, and it is being externally connected to an adsorbent surge bunker；The discharge port is set to the bottom of the tower body；
The high-temperature flue gas purification absorption tower is additionally provided with a cooling pipe network, and the cooling pipe network is interted in the adsorbent layer
Cooling medium is passed through the adsorbent layer, so that adsorbent layer cools down by portion；
The tower body on the high-temperature flue gas purification absorption tower is internally provided with temp measuring system, to monitor tower vivo environment temperature.
2. a kind of high-temperature flue gas purification absorption tower as described in claim 1, wherein the cooling pipe network include main line and time
Grade pipeline；
The main line is arranged outside the tower body, has at least one branch in the vertical direction, is arranged in each branch
There is flow valve, and continue branch on vertical direction after flow valve, form multiple secondary pipes, interts into the tower body；It is multiple
The secondary pipes intert inside the adsorbent layer, and the branch pipe with horizontal direction, will cool down medium be passed through it is described
Adsorbent layer.
3. a kind of high-temperature flue gas purification absorption tower as claimed in claim 2, wherein sealing welding at the secondary pipes end
It connects, the inner wall 30-150cm of the tower body of the other side into the adsorbent layer side is interted away from the secondary pipes；It is described
The pipe surface interted on secondary pipes into the part of the adsorbent layer is evenly distributed with aperture, and the hole diameter, which is less than, to be inhaled
Attached dose of minimum diameter.
4. a kind of high-temperature flue gas purification absorption tower as claimed in claim 3, wherein the hole separation distribution, pipeline are axial
Upper adjacent two small pitch of holes is 10cm-30cm, and circumferentially upper adjacent two aperture of pipeline is staggered 45 ° along pipeline axial direction.
5. a kind of high-temperature flue gas purification absorption tower as claimed in claim 2, wherein between multiple secondary pipes apart
30cm-150cm, between the tube wall and the tower body inner wall for surrounding the adsorbent layer of multiple secondary pipes it is horizontal apart
30cm-150cm。
6. a kind of high-temperature flue gas purification absorption tower as described in claim 1, wherein the air inlet and gas outlet difference
Positioned at the opposite sides of the tower body, and the air inlet and the gas outlet may be contained within the middle part of the tower body；Or it is described
Air inlet and the gas outlet are located at the homonymy of the tower body, and the air inlet is located at the lower part of the tower body, the gas outlet
Positioned at the top of the tower body.
7. a kind of high-temperature flue gas purification absorption tower as described in claim 1, wherein the adsorbent layer is divided by porous barrier
Multilayer, the feed inlet and the discharge port are also equipped with multiple, and each individual adsorbent layer being separated out is right respectively
Answer a feed inlet and a discharge port.
8. a kind of high-temperature flue gas purification absorption tower as claimed in claim 7, wherein the aperture of the porous barrier is less than absorption
The aperture of agent；The aperture of the porous barrier is less than 6mm；The percent opening of the porous barrier is 35%-45%.
9. a kind of high-temperature flue gas purification absorption tower as described in any one of claim 1-8, wherein the tower body is cube
Body；The tower body length is 2m-9m, width 3m-6m, is highly 8m-25m.
10. a kind of high-temperature flue gas purification processing method, which is characterized in that use high-temperature flue gas purification as described in claim 1
Absorption tower；
Step includes：
Pending flue gas enters the absorption tower from the air inlet, is handled through the adsorbent layer and absorbs the pending flue gas
In SO2And NOxIt is discharged afterwards by the gas outlet；
Adsorbent in the adsorbent layer enters the adsorbent layer from the feed inlet, and the tower is discharged from the discharge port
Body；
When the tower body temperature is higher than preset temperature, cooling medium is passed through in the tower body by cooling pipe network, is reduced in tower body
Temperature makes tower body temperature be maintained at the preferred temperature of adsorbent work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810134403.3A CN108295617A (en) | 2018-02-09 | 2018-02-09 | A kind of high-temperature flue gas purification absorption tower and apply its flue gas processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810134403.3A CN108295617A (en) | 2018-02-09 | 2018-02-09 | A kind of high-temperature flue gas purification absorption tower and apply its flue gas processing method |
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| Publication Number | Publication Date |
|---|---|
| CN108295617A true CN108295617A (en) | 2018-07-20 |
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| CN201810134403.3A Pending CN108295617A (en) | 2018-02-09 | 2018-02-09 | A kind of high-temperature flue gas purification absorption tower and apply its flue gas processing method |
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| CN117101337A (en) * | 2023-10-20 | 2023-11-24 | 中国华能集团清洁能源技术研究院有限公司 | Cooling low-temperature adsorption combined purifying device |
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