Membrane delivery mechanism for membrane sealing device of catalyst body

Abstract

The invention relates to a membrane delivery mechanism for a membrane sealing device of a catalyst body. The mechanism comprises a transmission belt and a first delivery roller arranged above the transmission belt, second delivery rollers are arranged below the transmission belt, two second delivery rollers are located on the two sides below the first delivery roller and the roller cores of the second delivery rollers are parallel to the roller core of the first delivery roller, a tensioning ropes are arranged on the two sides below the first delivery roller, a delivery clamping plane which islarge at the top and small at the bottom is formed on the plane where the ropes are located, to-be-delivered membranes pass through the clamping port between the two second delivery rollers, a thirddelivery roller is parallel arranged below the two second delivery rollers, the other side of the transmission belt is provided with a fourth delivery roller parallel to the third delivery roller, anda material collecting roller is parallel arranged above the fourth delivery roller. The mechanism has the advantages that it is ensured that when membranes are delivered to the material collecting roller, the membranes are in a free holding state, and therefore the membranes can be ensured that the membranes are in a spreading state.

Description

technical field [0001] The invention relates to the technical field of catalyst production, in particular to a film guiding mechanism used for a film sealing device of a catalyst body. Background technique [0002] At present, the general and effective method for removing nitrogen oxides in flue gas in various countries in the world is to use selective catalytic reduction (SCR) technology. The selective catalytic reduction method is to use ammonia (NH3) to reduce NOx, and under the condition of 320-400 ° C, use the catalyst to reduce NOx to N2 and water that have no impact on the atmosphere. "Selectivity" means that ammonia is selectively reduced, and here only NOx is selected for reduction. Catalyst is the core of SCR technology, and its quality and performance are directly related to the denitrification efficiency. [0003] The production process of the denitrification catalyst roughly includes the following steps: mixing and stirring→rough pressing→extrusion molding→cut...

AI Technical Summary

Problems solved by technology

In the above step of packaging into modules, outside air or water vapor enters from both ends of the denitration catalyst body, which will reduce the catalytic performance of the denitration catalyst body, thereby reducing the quality of the denitration catalyst. In this regard, in order to avoid the entry of air or water vapor, Generally, polyethylene plastic film is packaged at both ends of the denitrification catalyst body. The above-mentioned polyethylene plastic film is extremely thin and similar to the fresh-keeping film used in daily life. The general packaging mechanism can easily cause the polyethylene plastic film to fold when packaging. In this way, the packaging effect on both ends of the denitration catalyst body is not ideal, and the quality of the denitration catalyst body cannot be guaranteed

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