CN204073848U - A kind of filter cylinder with denitration function - Google Patents
A kind of filter cylinder with denitration function Download PDFInfo
- Publication number
- CN204073848U CN204073848U CN201420465256.5U CN201420465256U CN204073848U CN 204073848 U CN204073848 U CN 204073848U CN 201420465256 U CN201420465256 U CN 201420465256U CN 204073848 U CN204073848 U CN 204073848U
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- filter cylinder
- cavity
- filtrate
- gas
- intranet
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Abstract
The utility model discloses a kind of filter cylinder with denitration function, comprise annular upper cover and bottom, the top of described upper cover is provided with sealing ring, tubular pleat shape filtrate is provided with between described upper cover and bottom, be provided with Intranet inside described filtrate, between described filtrate and described Intranet, form a cavity, in described cavity, be provided with denitrating catalyst, the upper end of described cavity is connected with gas-adding pipe, and described gas-adding pipe is connected with air accumulator.Denitrating catalyst is provided with in the utility model cavity, ammonia is passed in this cavity by gas-adding pipe, under the effect of high temperature and denitrating catalyst, the nitrogen oxide generation chemical reaction in ammonia and flue gas, generate nitrogen and the water of environmental sound, thus denitration is carried out to flue gas.
Description
Technical field
The utility model relates to a kind of filter cylinder, particularly relates to a kind of filter cylinder with denitration function, belongs to cleaner field.
Background technology
Deduster is a kind of common cleaner, is widely used in the fields such as cement, iron and steel, electric power, food, metallurgy.Filter cylinder is the element that deduster is conventional, and general filter cylinder is made up of filtrate, net, upper and lower covers, sealing ring, bandage etc., and in common dedusting environment, such filter cylinder can play a role completely.But containing nitrogen oxide (NO
x), SO
2deng gas carry out dedusting time, require that filtrate possesses the function of desulphurization and denitration, and at present filter cylinder does not also possess such function, can only by improving the structure of filter cylinder.SCR (SCR) denitration technology is under the effect of catalyst, and reducing agent (liquefied ammonia, ammoniacal liquor or urea) reacts with the NOx in flue gas and generates harmless nitrogen and water, thus removes the NOx in flue gas.Consider in reaction and have SO
2with reducing agent (liquefied ammonia, ammoniacal liquor), side reaction occurs, product can affect service life and the corrosion reaction device of catalyst, therefore, carries out denitration again after generally first carrying out dust removal by filtration and desulfurization to flue gas.
Utility model content
For the deficiencies in the prior art, the purpose of this utility model is, provide a kind of filter cylinder with denitration function, denitration effect is obvious.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of filter cylinder with denitration function, comprise annular upper cover and bottom, the top of described upper cover is provided with sealing ring, is provided with tubular pleat shape filtrate, is provided with Intranet inside described filtrate between described upper cover and bottom, it is characterized in that: between described filtrate and described Intranet, form a cavity, be provided with denitrating catalyst in described cavity, the upper end of described cavity is connected with gas-adding pipe, and described gas-adding pipe is connected with air accumulator.
Aforesaid a kind of filter cylinder with denitration function, is characterized in that: described gas-adding pipe is provided with control valve and gas meter.
Aforesaid a kind of filter cylinder with denitration function, it is characterized in that: be covered with a cannelure on described, described sealing ring is arranged in described cannelure.
Aforesaid a kind of filter cylinder with denitration function, is characterized in that: the upper end of described filtrate and Intranet is arranged in described upper cover.
Aforesaid a kind of filter cylinder with denitration function, is characterized in that: the lower end of described filtrate and Intranet is arranged in described bottom.
Aforesaid a kind of filter cylinder with denitration function, is characterized in that: be provided with bandage outside described filtrate.
Aforesaid a kind of filter cylinder with denitration function, is characterized in that: described cavity bottom is provided with collection of products device.
Aforesaid a kind of filter cylinder with denitration function, is characterized in that: the material of described Intranet is metal.
The beneficial effects of the utility model are: by improving common cartridge structure, a cavity is formed between filtrate and Intranet, denitrating catalyst is provided with in cavity, ammonia can be passed into by gas-adding pipe in this cavity, under the effect of high temperature and denitrating catalyst, the nitrogen oxide NO in ammonia and flue gas
xthere is chemical reaction in (mainly NO), generates nitrogen and the water of environmental sound, thus carry out denitration to flue gas.Cavity upper end is provided with gas-adding pipe, and gas-adding pipe is connected with air accumulator, and gas-adding pipe is provided with control valve and gas meter, and what can control ammonia passes into speed, and therefore this device can well control reaction condition, plays good denitration effect.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is internal cross section figure of the present utility model.
Detailed description of the invention
For disclosing the technical solution of the utility model further, embodiment of the present utility model is described in detail: a kind of filter cylinder with denitration function below in conjunction with accompanying drawing, its structure as shown in Figure 1, comprise annular upper cover 1 and bottom 2, the top of described upper cover 1 is provided with sealing ring 3, and described upper cover 1 is provided with a cannelure, and described sealing ring 3 is arranged in described cannelure, sealing ring 3 plays the effect of sealing, stops that dust enters in filter cylinder from upper cover 1 and machine joint.
Be provided with tubular pleat shape filtrate 4 between described upper cover 1 and bottom 2, play the effect of Chalk-dust filtering, the size according to dust granules selects suitable filter material.
Be provided with Intranet 5 inside described filtrate 4, the material of described Intranet 5 is metal, serves supporting role.Filtrate 4 is filling in upper cover 1 by glue with the upper end of Intranet 5, and lower end is filling in lower cover 2 by glue.
Be provided with bandage 6 outside described filtrate 4, play the effect of fixing filtrate and reinforcing.
As shown in Figure 2, form a cavity 7 between described filtrate 4 and described Intranet 5, be provided with denitrating catalyst 8 in described cavity 7, this catalyst is alveolate texture.The upper end of cavity 7 is also provided with gas-adding pipe 9, and described gas-adding pipe 9 is connected with air accumulator 10, and described gas-adding pipe 9 is provided with control valve 11 and gas meter 12, can control the speed passing into ammonia.Described cavity bottom is provided with collection of products device 13, collects the water that reaction produces.
Using method:
First a kind of denitrating catalyst with alveolate texture is prepared, by TiO
2, V
2o
5, WO
3by ceramics extrusion equipment, make catalyst element, be then assembled into module.After desulfurized step, temperature is the flue gas of 120 DEG C, and the filter cylinder filtrate 4 through deduster filters, and enters the cavity 7 between filtrate 4 and Intranet 5, and the speed passing into flue gas is 2m/s, NO
xconcentration is 400mg/Nm
3, in catalyst 8, pass into ammonia by gas-adding pipe 9, the speed that passes into of ammonia is 3m/s, and its concentration is 260 mg/Nm
3, now, main nitrogen oxide and NO and ammonia react, and its reaction equation is: 6NO+4NH
3=5N
2+ 6H
2o, wherein product N
2discharge with other gases, water is collected by collection of products device 13.The flue gas inspection result of discharge shows, denitration rate can reach 85%.
More than by description of listed embodiment, basic conception of the present utility model and general principle are set forth.But the utility model is never limited to above-mentioned listed embodiment, every equivalent variations, the improvement done based on the technical solution of the utility model and deliberately become of inferior quality behavior, all should belong to protection domain of the present utility model.
Claims (8)
1. one kind has the filter cylinder of denitration function, comprise annular upper cover and bottom, the top of described upper cover is provided with sealing ring, tubular pleat shape filtrate is provided with between described upper cover and bottom, be provided with Intranet inside described filtrate, it is characterized in that: between described filtrate and described Intranet, form a cavity, in described cavity, be provided with denitrating catalyst, the upper end of described cavity is connected with gas-adding pipe, and described gas-adding pipe is connected with air accumulator.
2. a kind of filter cylinder with denitration function according to claim 1, is characterized in that: described gas-adding pipe is provided with control valve and gas meter.
3. a kind of filter cylinder with denitration function according to claim 1, it is characterized in that: be covered with a cannelure on described, described sealing ring is arranged in described cannelure.
4. a kind of filter cylinder with denitration function according to claim 1, is characterized in that: the upper end of described filtrate and Intranet is arranged in described upper cover.
5. a kind of filter cylinder with denitration function according to claim 1, is characterized in that: the lower end of described filtrate and Intranet is arranged in described bottom.
6. a kind of filter cylinder with denitration function according to claim 1, is characterized in that: be provided with bandage outside described filtrate.
7. a kind of filter cylinder with denitration function according to claim 1, is characterized in that: described cavity bottom is provided with collection of products device.
8. a kind of filter cylinder with denitration function according to claim 1, is characterized in that: the material of described Intranet is metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420465256.5U CN204073848U (en) | 2014-08-18 | 2014-08-18 | A kind of filter cylinder with denitration function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420465256.5U CN204073848U (en) | 2014-08-18 | 2014-08-18 | A kind of filter cylinder with denitration function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204073848U true CN204073848U (en) | 2015-01-07 |
Family
ID=52166614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420465256.5U Active CN204073848U (en) | 2014-08-18 | 2014-08-18 | A kind of filter cylinder with denitration function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204073848U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105771340A (en) * | 2016-05-04 | 2016-07-20 | 李章文 | Filter material net partition and water purifier using same |
-
2014
- 2014-08-18 CN CN201420465256.5U patent/CN204073848U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105771340A (en) * | 2016-05-04 | 2016-07-20 | 李章文 | Filter material net partition and water purifier using same |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |