CN202263606U - Corrugated plate type styrene chloroprene rubber (SCR) denitration catalyst structure - Google Patents
Corrugated plate type styrene chloroprene rubber (SCR) denitration catalyst structure Download PDFInfo
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- CN202263606U CN202263606U CN2011204024365U CN201120402436U CN202263606U CN 202263606 U CN202263606 U CN 202263606U CN 2011204024365 U CN2011204024365 U CN 2011204024365U CN 201120402436 U CN201120402436 U CN 201120402436U CN 202263606 U CN202263606 U CN 202263606U
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Abstract
The utility model belongs to the field of environmental engineering and relates to a corrugated plate type styrene chloroprene rubber (SCR) denitration catalyst structure. The catalyst has a corrugated plate structure and belongs to a heterogeneous catalyst. The catalyst has a framework of a 316L stainless steel plate, a 316L stainless steel mesh, a titanium plate or a titanium mesh; the 316L stainless steel plate, the 316L stainless steel mesh, the titanium plate or the titanium mesh has the thickness of 0.2 to 1mm; the stainless steel mesh or the titanium mesh has the granularity of 200 to 600 meshes; the stainless steel plate, the stainless steel mesh, the titanium plate or the titanium mesh is pressed into a corrugated plate; and corrugations are spliced by upper and lower semi-circles with the diameter of 2 to 30mm. The stainless steel plate or the titanium plate serves as the framework of the catalyst, and the problems that the framework of the conventional catalyst has too heavy weight and a base frame cannot bear the weight are solved. Moreover, by adopting a design of a large-aperture channel, the problem that ash easily deposits in the conventional catalyst when the dust load is high is solved.
Description
Technical field
The utility model belongs to field of environment engineering, relates to a kind of corrugated plate dst SCR denitrating catalyst structure.
Background technology
On April 13rd, 2011, national environmental protection portion has issued " thermal power plant's atmosphere pollutants emission standards " (exposure draft for the second time).Aspect the discharge capacity restriction of flue dust, sulfur dioxide and three major pollutants of nitrogen oxide, new standard has all been made more strict regulation.Aspect denitration, new standard has stipulated that all fired power generating unit in 2015 all will carry out discharged nitrous oxides concentration and not be higher than 200mg/m in the key area
3, non-key area 400mg/m
3Limit value.The newly-increased unit of key area came into effect 200mg/m from 2010
3Emission limit.
According to national requirements, built at present with newly-built fired power generating unit and will list denitrating system in construction plan gradually.From the scale of the newly-built generating set of domestic thermal power generation industry of present stage, to 2010, domestic thermal power generation industry was at least about there being 200,000,000 kilowatts installed capacity need build the denitrating flue gas facility.Add newly-increased fired power generating unit during " 12 ", suppose that the newly-increased fired power generating unit installed capacity 2.63 hundred million kilowatts (according to expectations of middle Electricity Federation) of the five-year all needs denitration, has 4.63 hundred million kilowatts fired power generating unit denitration demand nearly so during " 12 ".
The SCR denitration technology is to use gas denitrifying technology the most widely at present in the world; In most of power plant of countries and regions such as Japan, Europe, the U.S., basically all use this technology, it does not have accessory substance, does not form secondary pollution; Apparatus structure is simple; And denitration efficiency high (can reach more than 90%), reliable, be convenient to safeguard.Catalyst is the main part of SCR denitrating system; The SCR catalyst has cellular, tabular, corrugated at present, and difform catalyst is suitable for different occasions, and the corrugated plate dst catalyst belongs to heterogeneous catalyst; Be with catalyst-coated on glass mat; The anti-flue gas impact capacity of corrugated plate dst catalyst is strong, is not easy dust stratification, is suitable for the high flue gas desulfurization environment of dustiness.But present corrugated plate dst catalyst exists catalyst weight too big; The load-bearing of catalyst bracket excess load; Therefore easy dust stratification when dust content is big, shortcoming such as perishable develop that specific area is big, catalyst weight is relatively light, be difficult for dust stratification, uncorruptible corrugated plate dst catalyst is significant.
Summary of the invention
The purpose of the utility model is in order to solve problems such as present corrugated plate dst denitrating catalyst is perishable, weight is big, and a kind of corrugated plate dst denitrating catalyst structure of invention.
A kind of corrugated plate dst SCR denitrating catalyst structure, it is characterized in that: catalyst structure is a corrugated plate dst, belongs to heterogeneous catalyst; Said catalyst backbone is 316L corrosion resistant plate, 316L stainless (steel) wire, titanium plate or titanium net; Catalyst is contained in the 316L stainless steel shell, constitutes a catalyst module, and stainless steel casing is of a size of: long 50-500mm; Wide 50-500mm, high 50-500mm.
Corrosion resistant plate, stainless (steel) wire, titanium plate or titanium net have the 10-50 layer; Stainless (steel) wire or titanium net are the 200-600 order.
Said corrosion resistant plate, stainless (steel) wire, titanium plate or titanium net thickness are 0.2-1mm.
Said corrosion resistant plate, stainless (steel) wire, titanium plate or titanium net are long to be 50-500mm, and wide is 50-500mm.
Said corrosion resistant plate, stainless (steel) wire, titanium plate or titanium net are pressed into corrugated, and ripple is that the semicircle of diameter 2-30mm joins up and down and forms.
This corrugated plate dst denitrating catalyst structure specific area is big, is not easy to stop up, and is not perishable, in light weight, easy mounting and replacement.This corrugated plate dst denitrating catalyst skeleton is selected titanium plate or the 316L corrosion resistant plate of 0.1-3mm for use, and corrosion resistance is strong, and skeleton can recycle, and especially the titanium plate can unlimitedly reclaim, and meets national circular economy concept.The corrugated plate dst catalyst structure is selected different big or small ripples for use according to flue gas condition, under the prerequisite that guarantees contact area and denitration efficiency, enlarges the diameter of ripple as far as possible, to reduce the possibility of dust stratification.
The corrugated plate dst catalyst structure of the utility model is a skeleton with corrosion resistant plate, stainless (steel) wire, titanium plate or titanium net; Catalyst is uniformly attached to the skeleton surface; Wherein corrosion resistant plate or titanium plate are before catalyst adheres to; Carry out surface treatment earlier, its surface area is increased, and easier and catalyst combination; Stainless (steel) wire or titanium net are because its surface is very thin mesh, so specific area is very big, and also relatively easy with the combination of catalyst, and therefore unnecessary doing handled early stage.Titanium plate or corrosion resistant plate surface treatment at first are pressed into corrugated with skeleton after accomplishing, then with catalyst carrier (titanium dioxide) attached to corrosion resistant plate, stainless (steel) wire, titanium plate or the online face of titanium, after the drying, again the catalyst activity composition is adhered on it.The catalyst activity composition is dispersed in above the skeleton by the high-specific surface area of titanium dioxide uniformly.Undulatory catalyst structure specific area is big, and anti-flue gas impact capacity is strong, is not easy dust stratification.Because skeleton adopts corrosion resistant plate, stainless (steel) wire, titanium plate or titanium net, so corrosion resistance is strong.The skeleton that the utility model adopted is because thickness is little, so the skeleton overall weight is lighter relatively, has not only reduced weighing of catalyst bracket, and the skeleton of titanium plate or titanium net can unlimitedly reuse, and practiced thrift cost.The utility model is that the corrugated catalyst is contained in the stainless steel shell, becomes an independently modular unit, comprises 10-50 layer corrosion resistant plate, stainless (steel) wire, titanium plate or titanium net in each catalyst module.The catalyst integral installation is in Benitration reactor, and the nitrogen-containing oxide flue gas with after catalyst fully contacts, reaches denitration effect during through Benitration reactor; The utility model catalyst is installed simple; In case certain module catalyst has damage, it is convenient to change, and has saved the catalyst cost.And the utility model specific surface area of catalyst is big, and intensity is high, and therefore under the prerequisite that guarantees denitration effect, the resistance to corrosion of the utility model catalyst, anti-flue gas impact capacity etc. all is better than conventional catalysts.
Description of drawings
Shown in Figure 1 is the structural representation of the utility model.
The specific embodiment
Below in conjunction with embodiment the utility model is described further, its purpose is better to understand the content of the utility model, but the embodiment of the utility model is not limited thereto.
Embodiment
Present embodiment adopts 25 layers of titanium net, and the titanium net is 400 orders, and titanium net thickness is 0.2mm, and the titanium net is of a size of: 500 * 500mm.The corrugated plate dst ripple size is: internal diameter is 19mm, and external diameter is 20mm, and promptly wall thickness is 1mm.By on can know, at 1m
3Volumetric spaces in, have 8 corrugated plate dst catalyst modules, surface area is 157m
2Because the used skeleton of the utility model is 400 order titanium nets, the specific area of therefore calculating gained has not had reference significance, and the actual specific surface area is higher than 157m far away
2Present embodiment catalyst system therefor weight is 0.07t/m
3Well below catalyst of the same type in the market, present business-like corrugated plate dst catalyst weight is about 0.4t/m
3
Can know that from above embodiment under the equal volume, the utility model specific surface area of catalyst is big; The weight ratio commercial catalyst is light, when satisfying denitration efficiency, has alleviated catalyst pedestal load-bearing burden; And catalyst backbone titanium net can 100% reclaims unlimited recycling.
Claims (4)
1. a corrugated plate dst SCR denitrating catalyst structure is characterized in that catalyst structure is a corrugated plate dst; Belong to heterogeneous catalyst, said catalyst backbone is 316L corrosion resistant plate, 316L stainless (steel) wire, titanium plate or titanium net, and catalyst is contained in the 316L stainless steel shell; Constitute a catalyst module; Stainless steel casing is of a size of: long 50-500mm, wide 50-500mm, high 50-500mm.
2. a kind of corrugated plate dst SCR denitrating catalyst structure according to claim 1 is characterized in that described 316L corrosion resistant plate, 316L stainless (steel) wire, titanium plate or titanium net thickness are 0.2-1mm; Stainless (steel) wire or titanium net are the 200-600 order; Corrosion resistant plate, stainless (steel) wire, titanium plate or titanium net are pressed into corrugated, and ripple is that the semicircle of diameter 2-30mm joins up and down and forms.
3. a kind of corrugated plate dst SCR denitrating catalyst structure according to claim 2 is characterized in that the long 50-500mm of being of described corrosion resistant plate, stainless (steel) wire, titanium plate or titanium net, and wide is 50-500mm.
4. a kind of corrugated plate dst SCR denitrating catalyst structure according to claim 1 is characterized in that: 10-50 layer corrugated plate dst catalyst is housed in the described catalyst module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204024365U CN202263606U (en) | 2011-10-20 | 2011-10-20 | Corrugated plate type styrene chloroprene rubber (SCR) denitration catalyst structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204024365U CN202263606U (en) | 2011-10-20 | 2011-10-20 | Corrugated plate type styrene chloroprene rubber (SCR) denitration catalyst structure |
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| Publication Number | Publication Date |
|---|---|
| CN202263606U true CN202263606U (en) | 2012-06-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204024365U Expired - Lifetime CN202263606U (en) | 2011-10-20 | 2011-10-20 | Corrugated plate type styrene chloroprene rubber (SCR) denitration catalyst structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106732709A (en) * | 2016-11-15 | 2017-05-31 | 河南康宁特环保科技股份有限公司 | A kind of preparation technology of corrugated plate dst denitrating catalyst |
-
2011
- 2011-10-20 CN CN2011204024365U patent/CN202263606U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106732709A (en) * | 2016-11-15 | 2017-05-31 | 河南康宁特环保科技股份有限公司 | A kind of preparation technology of corrugated plate dst denitrating catalyst |
| CN106732709B (en) * | 2016-11-15 | 2019-06-25 | 河南康宁特环保科技股份有限公司 | A kind of preparation process of corrugated plate dst denitrating catalyst |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120606 |