Looking for recommendations for crushing equipment
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Hello everyone, I need to crush 1.5–2 kg of catalysts for fuel cells (containing platinum). I am currently looking for suitable equipment that meets the following three conditions: 1. The crushing process must take place under nitrogen protection, 2. The material after crushing should be able to pass through a 0.15 mm sieve, and 3. The equipment should have a function for collecting the material. I was wondering if any of you have experience with such equipment, or if you know anyone in this field Thank you in advance!
It is recommended to choose ball mills or high-energy ball mills equipped with nitrogen protection systems; these devices allow grinding to take place in a sealed environment under a nitrogen atmosphere, effectively preventing oxidation. They can also be fitted with 0.15 mm screens and a material collection system. Contact a crusher equipment supplier; they will provide more specific model details and technical specifications. I hope this can help you! .
I have indeed considered ball mills. However, the zirconium beads in the machine still need to be sifted, and the beads themselves will also pick up some material
Indeed, when using a ball mill, zirconia balls may adsorb some of the material, which leads to certain losses. You may consider using a ball mill with a special separation system, which allows for the easy recovery of zirconium balls after grinding, while reducing material loss. Additionally, an air jet mill can also be considered; it uses high-speed air streams to impact and crush the material, thereby avoiding the need for media and related issues. Air jet mills can also be equipped with nitrogen protection and fineness classification systems to meet your requirements. It is recommended to consult the equipment supplier in detail to obtain a solution that best meets your needs. .
Do you have the contact information for the relevant manufacturers?
Can you provide the physical property data of the materials? Also, what is your throughput (per hour), and what is the particle size of the raw material? I’ll help you check if a jet mill can be used.
Platinum-containing catalysts using carbon powder as a carrier typically amount to around 2 kg per batch, which is not a large quantity. It’s usually about the size of half a fingernail – isn’t using a pneumatic grinder an overkill?
Indeed, you can give a lab-grade vibration mill a try.
Thank you for the reply! Currently, a company that uses ultrasound plus zirconium bead vibration screening has been found; let’s see the results of the tests
For this particle size, I generally recommend roller grinding, and for the sieve used afterward, I suggest one with adjustable tension. Because of the small particle size, it’s very easy to clog the pores
I saw that the replies from above were quite professional. An air jet mill may not be able to grind the material in question. We have handled several cases where customers provided samples of metal powders and requested the use of an air jet mill; the usual outcome is merely the shaping of the particle surfaces, that is, rounding the surface of the metal particles, with the grinding effect being rather limited