CN202315658U - Waste gas treatment device - Google Patents
Waste gas treatment device Download PDFInfo
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- CN202315658U CN202315658U CN2011204390338U CN201120439033U CN202315658U CN 202315658 U CN202315658 U CN 202315658U CN 2011204390338 U CN2011204390338 U CN 2011204390338U CN 201120439033 U CN201120439033 U CN 201120439033U CN 202315658 U CN202315658 U CN 202315658U
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- outlet
- tower
- distributor
- emission
- control equipment
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Abstract
The utility model discloses a waste gas treatment device, which can be used for carrying out two-section denitration treatment and dispensing adsorbents (such as activated carbon). The waste gas treatment device comprises desulfuration and denitration towers, denitration towers, a regeneration tower, a first conveying mechanism used for conveying the adsorbent from the regeneration tower to the denitration tower, a second conveying mechanism used for conveying the adsorbent from the denitration tower to the desulfuration and denitration tower, a third conveying mechanism used for conveying the desulfuration and denitration tower to the regeneration tower, and a dispenser used for dispensing the adsorbent to the desulfuration and denitration tower and the denitration tower, wherein the dispenser is connected between the regeneration tower and the first conveying mechanism as well as the second conveying mechanism and is provided with an inlet, a first discharge hole and a second discharge hole, the inlet of the dispenser is communicated with an outlet of the regeneration tower, the first discharge hole is communicated with the first conveying mechanism, and the second discharge hole is communicated with the second conveying mechanism.
Description
Technical field
The utility model relates to a kind of emission-control equipment, relates in particular to a kind of emission-control equipment that has that two sections denitrations are handled and can distribute the amount of adsorbent.
Background technology
Usually, the waste gas that adopts emission-control equipment that make charcoal boiler or sintering machine are produced carries out desulphurization denitration to be handled, and its adsorbent generally uses carbonaceous sorbents (following general designation active carbon) such as active carbon, activated charcoal.The general desulphurization denitration handling procedure of active carbon that uses roughly is divided into two kinds, is respectively one section denitration operation and two sections denitration operations.As shown in Figure 1, summarily illustrate one section denitration operation.The waste gas that boiler or sintering machine produce of making charcoal is sent into desulphurization denitration tower 1 and is carried out desulphurization denitration and handle, and the waste gas that will pass through then after desulphurization denitration is handled is discharged through chimney 3.In the waste gas of boiler and sintering machine of making charcoal, not only contain NO
xAlso contain SO
xFor efficient denitration, adopt NH usually
3, denitration reaction is suc as formula shown in (1):
Denitration reaction: NO+NH
3+ 1/4O
2→ N
2+ 3/2H
2O (1)
But, also contain SO in the waste gas
x, shown in (2)-(4), SO
xBe fixed in the active carbon pore as sulfuric acid, be easy to and NH
3React, that is: NH
3Also do not have and NO
xReaction is with regard to elder generation and H
2SO
4Reacted, thereby can't realize the denitration processing.
Desulphurization reaction: SO
2+ 1/2O
2+ H
2O → H
2SO
4(sulfuric acid) (2)
NH
3+ H
2SO
4→ NH
4HSO
4(sour sulfur ammonium) (3)
NH
3+ NH
4HSO
4→ (NH
4)
2SO
4(sulphur ammonium) (4)
To this, prior art adopts two sections denitration operations usually, and is as shown in Figure 2, and the waste gas that make charcoal boiler or sintering machine produce is at first sent into desulphurization denitration tower 1 absorption SO
x, will hang down SO then
xThe waste gas of concentration imports and carries out the denitration processing in the denitrating tower 2, thereby reaches high denitration performance.(referring to patent documentation 1)
More than from the waste gas angle denitration operation is illustrated, the circulatory system angle of the active carbon of denitration performance describes the denitration operation from the left and right sides below.Is that 4 towers, denitrating tower are that 4 towers describe for example at this with the desulphurization denitration tower.
What Fig. 3 showed is one section active carbon cyclic program in the denitrating system.The active carbon of SO2 is discharged from each desulphurization denitration tower bottom in the absorption waste gas, is transported to regenerator through methods such as conveyer belts.With the temperature thermal regeneration more than 360 ℃, after the cooling, circulation gets into the desulphurization denitration tower to active carbon, reuses in regenerator.Two sections denitration operations comprise two kinds of active carbon cyclic programs.A kind of active carbon cyclic program of two sections denitration operations is as shown in Figure 4; To all send into denitrating tower from the active carbon that regenerator is discharged through conveyer belt; The active carbon that to discharge from denitrating tower through conveyer belt then all transfers the desulphurization denitration tower, and will send into from the active carbon that the desulphurization denitration tower is discharged through conveyer belt and to carry out Regeneration Treatment the regenerator.In this example, can not change the feeding amount of the active carbon of denitrating tower and desulphurization denitration tower individually.The another kind of active carbon cyclic program of two sections denitration operations is as shown in Figure 5; Directly supply with the active carbon of discharging through conveyer belt, and will send into regenerator from the active carbon of denitrating tower and the discharge of desulphurization denitration tower through conveyer belt and carry out Regeneration Treatment from regenerator to denitrating tower and desulphurization denitration tower.So, can the individual settings desulfurizing tower and the active carbon feeding amount of desulphurization denitration tower.But, if the feeding amount of desulphurization denitration tower will obtain same desulfurization performance, just become identical setting, with the instance comparison of Fig. 4, in this example, the active carbon feeding amount has increased.
From to SO
xWith NO
xElimination reaction consider.On the one hand, SO
xThrough adsorption reaction, be fixed in the active carbon pore, passing in time, adsorbance increases, and adsorption rate reduces.Therefore, for obtaining certain desulfurization performance, the holdup time of active carbon in the desulphurization denitration tower is crucial.On the other hand, NO
xThrough with NH
3Reduction reaction, active carbon plays catalyst action, the decrease speed of the catalytic activity of active carbon compares SO
xThe decline of adsorption rate is wanted slowly therefore, even make the holdup time of active carbon in the denitrating tower more of a specified duration than the holdup time of active carbon in the desulphurization denitration tower, also can keep the desulphurization denitration performance of expection.In instance shown in Figure 4, the holdup time that is used to keep desulfurization performance in the desulphurization denitration tower becomes constraint, and the holdup time in the denitrating tower can not change.Because move unnecessary active carbon, will cause the active carbon loss to increase, corresponding increment increases thereupon, and the increment increase causes operation cost to increase.In instance shown in Figure 5, though can change both holdup times respectively, the result causes the activated carbon feeding amount to increase, and waste also increases thereupon, causes increment to increase.Therefore, the same with instance shown in Figure 4, the increment increase causes operation cost to increase.
[patent documentation 1] Japanese patent application " spy opens flat 11-165034 communique "
Summary of the invention
In order to overcome the above problems, the utility model provides a kind of emission-control equipment, and it has two sections denitration treatment process and can distribute the amount of adsorbent (for example active carbon).
According to the utility model embodiment; A kind of emission-control equipment comprise the out of stock tower of desulfurization, denitrating tower, regenerator, with adsorbent from said regenerator be transported to said denitrating tower first conveying mechanism, adsorbent is transported to second conveying mechanism of said desulphurization denitration tower, adsorbent is transported to the 3rd conveying mechanism of said regenerator from said desulphurization denitration tower from said denitrating tower; Wherein
Said emission-control equipment comprises the distributor that is used for to said desulphurization denitration tower and said denitrating tower distribution adsorbent, and this distributor is connected between said regenerator and said first conveying mechanism and second conveying mechanism.Wherein, said distributor has inlet, first outlet and second outlet, and its inlet is communicated with the outlet of said regenerator, and first outlet is communicated with said first conveying mechanism, and second outlet is communicated with said second conveying mechanism.
In a kind of embodiment of the utility model, said distributor comprises the roller feed machine, and said roller feed machine is arranged on said first outlet and second outlet one or both of.
In the another kind of embodiment of the utility model, said distributor comprises table feeder, and said table feeder is arranged on said first outlet and second outlet one or both of.
In another embodiment of the utility model, said distributor comprises rotary valve, and said rotary valve is arranged on said first outlet and second outlet one or both of.
In other embodiments of the utility model, said distributor comprises the ball valve or the family of power and influence, and the said ball valve or the family of power and influence are arranged on said first outlet and second outlet one or both of.
In other embodiments of the utility model, said distributor is steering gear.First outlet in said steering gear and the bifurcation of second outlet are provided with can be according to the butterfly of Preset Time rotation.Perhaps, the bifurcation of first outlet in said steering gear and second outlet is set with the space bar of dispense aperture portion ratio.
From the above; The utility model a kind of has emission-control equipment that two sections denitrations handle and through distributor is set the amount by the active carbon of regenerator discharge that will be admitted to desulphurization denitration tower and denitrating tower distributed; Can distribute active carbon neatly according to desulphurization denitration tower and the required separately amounts of activated carbon of denitrating tower; Reduced the feeding amount of active carbon; Correspondingly reduce the active carbon waste that produces in the handover process, reduced the increment of active carbon thereupon, avoided the increase of operation cost.Owing to reduced the waste of active carbon, correspondingly improved the utilization rate of active carbon, to a certain extent, reduced operation cost.
Description of drawings
Fig. 1 is the synoptic diagram of one section denitration operation of diagram;
Fig. 2 is the synoptic diagram of two sections denitration operations of diagram;
Fig. 3 is the synoptic diagram of one section active carbon cyclic program in the denitrating system;
Fig. 4 is the synoptic diagram of active carbon cyclic program one example in existing two sections denitrating systems;
Fig. 5 is another the routine synoptic diagram of active carbon cyclic program in existing two sections denitrating systems;
Fig. 6 is the structural representation according to a kind of emission-control equipment of the utility model embodiment;
Fig. 7 A illustrates the embodiment 1 of the distributor among Fig. 6;
Fig. 7 B illustrates the embodiment 2 of the distributor among Fig. 6;
Fig. 8 A illustrates the embodiment 3 of the distributor among Fig. 6;
Fig. 8 B illustrates the embodiment 4 of the distributor among Fig. 6;
Fig. 9 A illustrates the embodiment 5 of the distributor among Fig. 6;
Fig. 9 B illustrates the embodiment 6 of the distributor among Fig. 6;
Figure 10 A illustrates the embodiment 7 of the distributor among Fig. 6;
Figure 10 B illustrates the embodiment 8 of the distributor among Fig. 6;
Figure 10 C illustrates the embodiment 9 of the distributor among Fig. 6;
Figure 11 illustrates the embodiment 10 of the distributor among Fig. 6.
The specific embodiment
Below in conjunction with accompanying drawing being elaborated to the embodiment of the utility model.
Referring to Fig. 6, briefly show structure according to a kind of emission-control equipment of the utility model embodiment.Said emission-control equipment comprise the out of stock tower of desulfurization, denitrating tower, regenerator, with active carbon from said regenerator be transported to said denitrating tower first conveying mechanism 4, active carbon is transported to second conveying mechanism 5 of said desulphurization denitration tower, active carbon is transported to the 3rd conveying mechanism 6 of said regenerator from said desulphurization denitration tower from said denitrating tower; Wherein, Said emission-control equipment comprises the distributor 9 that is used for to said desulphurization denitration tower and said denitrating tower distribution active carbon; This distributor 9 is connected between said regenerator and said first conveying mechanism 4 and second conveying mechanism 5; Particularly; Can be arranged on the exit of regenerator, also can be arranged on any position between first conveying mechanism 4 and second conveying mechanism 5 that exports to of regenerator, first conveying mechanism 4 and second conveying mechanism 5 are linked up.Wherein, Shown in Figure 11 like Fig. 7 A-, distributor 9 has inlet 91, first outlet 92 and second outlet 93, and its inlet is communicated with the outlet of said regenerator; First outlet is communicated with said first conveying mechanism, and second outlet is communicated with said second conveying mechanism.
Referring to Fig. 7 A, illustrate the embodiment 1 of distributor 9.In embodiment 1, said distributor comprises roller feed machine 10, and this roller feed machine 10 is arranged on first outlet, 92 places.Roller feed machine 10 can be roller feed machine well known in the art, and it has roller, and through the rotation of roller, active carbon is discharged between the slit, and can quantitatively distribute active carbon to denitrating tower through the rotation number of roller.The utility model is not limited to this, and said roller feed machine 10 can also be arranged on second outlet, 93 places, thereby quantitatively quantitatively distributes active carbon to the desulphurization denitration tower.In addition, shown in Fig. 7 B, in embodiment 2, said roller feed machine all is set, thereby can quantitatively distributes active carbon to denitrating tower and desulphurization denitration tower simultaneously at first outlet and second outlet.
Referring to Fig. 8 A, illustrate the embodiment 3 of distributor 9.In embodiment 3, said distributor comprises table feeder 11, and this table feeder 11 is arranged on first outlet, 92 places.Table feeder 11 can be table feeder well known in the art, and it has disk, and through the rotation of disk, active carbon is discharged between the slit, and can quantitatively distribute active carbon to denitrating tower through the rotation number of disk.The utility model is not limited to this, and said table feeder 11 can also be arranged on second outlet, 93 places, thereby quantitatively quantitatively distributes active carbon to the desulphurization denitration tower.In addition, shown in Fig. 8 B, in embodiment 4, be provided with said table feeder, thereby can quantitatively distribute active carbon to denitrating tower and desulphurization denitration tower simultaneously at first outlet and second outlet.
Referring to Fig. 9 A, illustrate the embodiment 5 of distributor 9.In embodiment 5, said distributor comprises rotary valve 12, and this rotary valve 12 is arranged on first outlet, 92 places.Rotary valve 12 can be rotary valve well known in the art, can be quantitatively to denitrating tower distribution active carbon through the rotation number of control roller.The utility model is not limited to this, and said rotary valve 12 can also be arranged on second outlet, 93 places, thereby quantitatively quantitatively distributes active carbon to the desulphurization denitration tower.In addition, shown in Fig. 9 B, in embodiment 6, be provided with said rotary valve, thereby can quantitatively distribute active carbon to denitrating tower and desulphurization denitration tower simultaneously at first outlet and second outlet.
Referring to Figure 10 A, illustrate the embodiment 7 of distributor 9.In embodiment 7, said distributor is steering gear.First outlet 92 in said steering gear and the bifurcation of second outlet 93 are provided with can be according to the butterfly 13 of Preset Time rotation, through time switch conversion butterfly 13, particularly; As shown in the figure; In first period, butterfly 13 cuts off second outlet 93 and inlet 91 in (among the figure shown in the solid line), and first outlet 92 and inlet 91 are connected; In second period; Butterfly 13 cuts off first outlet 92 and inlet 91 in (among the figure shown in the dotted line), second outlet 93 and inlet 91 connected, and through quantitative distribution active carbon control conversion time.Wherein, pivot point is arranged on the mid portion of butterfly 13.In other embodiments of the utility model, pivot point also can be arranged on other positions of butterfly 13, for example; In the embodiment 8 of the distributor shown in Figure 10 B 9; Pivot point is arranged on the end of butterfly 14, and its function mode is identical with embodiment 7, no longer repeats at this.
Referring to Figure 10 C, illustrate the embodiment 9 of distributor 9.In embodiment 9, said distributor is steering gear.First outlet 92 in said steering gear and the bifurcation of second outlet 93 are set with the space bar 15 of dispense aperture portion ratio, come quantitatively to distribute active carbon through the angle of regulating steering gear.。
Referring to Figure 11, illustrate the embodiment 10 of distributor 9.In embodiment 10, said distributor comprises the ball valve or the family of power and influence 16, and this ball valve or the family of power and influence 16 are arranged on said first outlet 92 and second outlet, 93 places, quantitatively distributes active carbon to denitrating tower and desulphurization denitration tower through control ball valve or the family of power and influence's the switching time.Certainly, in other embodiments of the utility model, the said ball valve or the family of power and influence 16 can be arranged at one of said first outlet 92 and second outlet 93, with a certain amount of distribution active carbon to denitrating tower and desulphurization denitration tower.
In waste gas treatment process, activated carbon because drop impact and broken or and the contact friction of metal covering and the friction between active carbon particle, grain refined, efflorescence take place, produce activated carbon grain or powder.If these activated carbon grains or powder are stayed in the system, can cause the problems such as crushing rising of desulphurization denitration tower and denitrating tower, therefore must remove activated carbon grain or powder.After the removal, activated carbon produces loss, often the supply waste.The key of the amount of reducing the wastage is to reduce the feeding amount of activated carbon.Identical feeding amount is short more good more through the path.The amount of movement that particularly reduces desulphurization denitration tower, denitrating tower inside has remarkable result for the amount of reducing the wastage.Therefore,, need not to consider the arrangement of desulphurization denitration tower, denitrating tower, just can realize that activated carbon is transferred effectively through using the distribution method shown in the embodiment.
Need to prove; In other embodiments of the utility model; First outlet of said distributor also can be provided with different feed mechanisms respectively with second outlet; For example, first outlet is provided with the roller feed machine, and second outlet is provided with table feeder or rotary valve or the ball valve or the family of power and influence etc.
More than combine specific embodiment that the utility model is illustrated; These specific embodiments only are exemplary; Can not limit the protection domain of the utility model with this, those skilled in the art can carry out various modifications, variation or replacement under the prerequisite that does not break away from the utility model essence.Therefore, the various equivalent variations according to the utility model is done still belong to the scope that the utility model is contained.
Claims (11)
1. emission-control equipment; This emission-control equipment comprise the out of stock tower of desulfurization, denitrating tower, regenerator, with adsorbent from said regenerator be transported to said denitrating tower first conveying mechanism, adsorbent is transported to second conveying mechanism of said desulphurization denitration tower, adsorbent is transported to the 3rd conveying mechanism of said regenerator from said desulphurization denitration tower from said denitrating tower; It is characterized in that
Said emission-control equipment comprises the distributor that is used for to said desulphurization denitration tower and said denitrating tower distribution adsorbent, and this distributor is connected between said regenerator and said first conveying mechanism and second conveying mechanism.
2. emission-control equipment according to claim 1 is characterized in that, said distributor has inlet, first outlet and second outlet.
3. emission-control equipment according to claim 2; It is characterized in that; The inlet of said distributor is communicated with the outlet of said regenerator, and first outlet of said distributor is communicated with said first conveying mechanism, and second outlet of said distributor is communicated with said second conveying mechanism.
4. emission-control equipment according to claim 2 is characterized in that, said distributor comprises continuously the separately feeder of adsorbent, and said feeder is arranged on said first outlet and second outlet one or both of.
5. emission-control equipment according to claim 4 is characterized in that, said distributor is the roller feed machine.
6. emission-control equipment according to claim 4 is characterized in that, said distributor is a table feeder.
7. emission-control equipment according to claim 2 is characterized in that said distributor comprises rotary valve, and said rotary valve is arranged on said first outlet and second outlet one or both of.
8. emission-control equipment according to claim 2 is characterized in that said distributor comprises the ball valve or the family of power and influence, and the said ball valve or the family of power and influence are arranged on said first outlet and second outlet one or both of.
9. emission-control equipment according to claim 2 is characterized in that, said distributor is steering gear.
10. emission-control equipment according to claim 9 is characterized in that, first outlet in said steering gear and the bifurcation of second outlet are provided with can be according to the butterfly of Preset Time rotation.
11. emission-control equipment according to claim 9 is characterized in that, first outlet in said steering gear and the bifurcation of second outlet are set with the space bar of dispense aperture portion ratio.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204390338U CN202315658U (en) | 2011-11-08 | 2011-11-08 | Waste gas treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204390338U CN202315658U (en) | 2011-11-08 | 2011-11-08 | Waste gas treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202315658U true CN202315658U (en) | 2012-07-11 |
Family
ID=46427660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204390338U Expired - Lifetime CN202315658U (en) | 2011-11-08 | 2011-11-08 | Waste gas treatment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202315658U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105276999A (en) * | 2014-05-30 | 2016-01-27 | 宝山钢铁股份有限公司 | Sintering flue gas waste heat utilization and deep purification method and system thereof |
| WO2019214272A1 (en) * | 2018-05-10 | 2019-11-14 | 中冶长天国际工程有限责任公司 | Centralized and independent multi-working condition flue gas purifying treatment system and control method therefor |
-
2011
- 2011-11-08 CN CN2011204390338U patent/CN202315658U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105276999A (en) * | 2014-05-30 | 2016-01-27 | 宝山钢铁股份有限公司 | Sintering flue gas waste heat utilization and deep purification method and system thereof |
| WO2019214272A1 (en) * | 2018-05-10 | 2019-11-14 | 中冶长天国际工程有限责任公司 | Centralized and independent multi-working condition flue gas purifying treatment system and control method therefor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180705 Address after: Tokyo, Japan, Japan Patentee after: Nippon Steel Eng Co., Ltd. Address before: Tokyo, Japan, Japan Patentee before: Sumitomo Heavy Machinary Industries Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120711 |
|
| CX01 | Expiry of patent term |