SCR (Selective Catalytic Reduction) high specific surface plate catalyst and profiling device thereof

Abstract

The invention discloses an SCR (Selective Catalytic Reduction) high specific surface plate catalyst which is reasonable in structure and wide in application, and a profiling device thereof. The platecatalyst comprises a plurality of first catalysis layers and a plurality of second catalysis layers which are arranged inside a frame in an alternative manner. The profiling device comprises a fed material conveying unit, a molding unit and a discharged material conveying unit, wherein the fed material conveying unit is used for conveying a base plate and is arranged at a use field; the molding unit is used for profiling and molding the base plate conveyed by the fed material conveying unit, is arranged at the use field and is arranged adjacent to the fed material conveying unit; the discharged material conveying unit is used for further conveying the base plate which is profiled and molded, is arranged at the use field and is arranged adjacent to the profiling unit. The SCR high specificsurface plate catalyst which is reasonable in structure and wide in application, and the profiling device thereof, which are disclosed by the invention, are reasonable in structure, the specific surface area of the plate catalyst is increased, and the application range of the plate catalyst can be widened.

Description

technical field [0001] The invention relates to the field of profiling equipment, in particular to an SCR high specific surface area plate catalyst and a profiling device thereof. Background technique [0002] Among the denitrification technologies, the selective catalytic reduction (SCR) method is currently the main denitrification technology due to its high denitrification efficiency, good selectivity, and mature technology. In addition to coal-fired power stations, it is also used in various furnaces for steel and cement. and other fields; [0003] Catalyst is the key part of SCR denitrification system. At present, SCR denitrification catalyst mainly has three types: honeycomb type, flat plate type and corrugated plate type. The main components of the three types of catalysts are the same as the principle of catalytic reaction, but the structure is different; more common The most popular are honeycomb and plate catalysts. [0004] The honeycomb catalyst is generally int...

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Problems solved by technology

[0008] The flat-plate catalyst has the characteristics of small specific surface area and large gap, which is especially suitable for high-ash flue gas conditions; under low-ash or ash-free flue gas conditions, due to the small specific surface area of ​​the flat-plate catalyst, the flat-plate catalyst is better than the honeycomb type. A large amount of catalyst is used, which leads to an increase in the cost of flat-plate catalysts and equipment construction costs, and in some fields, such as denitrification of diesel engines or gas engine denitrification, the installation space is limited, such as the use of flat-plate catalysts will make it impossible to install; The specific surface area of ​​the flat catalyst reduces the volume of the flat catalyst and expands its application range, which is of great significance for the market application of the flat catalyst

[0009] In the production process of the flat-plate SCR denitration catalyst, one of the key links is pressing to make the catalyst have a specific corrugated structure; the existing pressing equipment is stamped and formed by multiple molds, and the made is intermittent corrugated plate, the corrugated size The precision is low, the molding speed is slow, the corrugated rebound amount is large, and the size is not easy to control;

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