Batch recovery equipment for fuel cell catalyst slurry

Abstract

The invention discloses batch recovery equipment for fuel cell catalyst slurry, and the method comprises a dipping box capable of realizing batch dipping of carriers, and in the dipping process; a mixed solution enters the dipping box through a pipeline connecting system and a solution storage box and can be recycled; through the arrangement of a water tank and a spray head, the cleaning work of a containing cavity can be achieved, and meanwhile cleaning water can be filtered and recycled through a pipeline connecting system; then the soaked carriers are placed on a platform in batches, the catalyst slurry on the carriers is scraped in batches through batch pressing of a pressing plate and batch displacement control of aluminum alloy blades, and finally the catalyst slurry is stored in a material collecting barrel through an auxiliary material collecting mechanism; and according to the equipment, a series of processes of soaking, scraping and recycling can be realized, batch dipping and intelligent scraping can be realized, and the equipment has higher efficiency.

Description

technical field [0001] The invention relates to the field of fuel cells, in particular to a batch recovery device for fuel cell catalyst slurry. Background technique [0002] Proton Exchange Membrane Fuel Cells (PEMFC), as a new type of clean energy, has attracted worldwide attention due to its low pollution or even no pollution. The core component of PEMFC, the membrane electrode (Membrane Electrode Assembly, MEA), is the main place where the fuel cell redox occurs, and it is also the focus of researchers' research. The GDL method is to coat the catalyst on the proton exchange membrane to form CCM (catalyst coated membrane, which refers to the catalyst / proton exchange membrane assembly prepared by coating the catalyst on both sides of the proton exchange membrane in the fuel cell), and then combine the three by hot pressing technology together form a membrane electrode. In the GDL method, most of them are prepared by pneumatic spraying method and ultrasonic spraying metho...

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Problems solved by technology

Therefore, it will cause waste of catalyst slurry, especially during the long-term spraying process, a large amount of catalyst will be deposited around the auxiliary fixture. If these catalysts are directly scrubbed off, the cost will undoubtedly be higher, and there will be certain pollution to the environment

[0004] At present, there is a gap in the equipment that can complete the recovery process of catalyst slurry in batches on the market. Currently, researchers can only rely on the method of sequentially processing artificial sheet carriers to collect catalyst slurry, which leads to a serious loss of efficiency in this recovery method, which in turn causes The recycling process of slurry cannot be popularized and used in the field of fuel cells, which affects the pace of progress in the field of fuel cells in my country

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