Hi everyone ,
Update on the so called tungsten carbide i put into my gasifier way back in early September , as i mentioned a few weeks ago we are in spring and so running only a few days of the week , that was until last week we had a rain and cloud for days so decided to get out and charge up my batteries , no way could i get engine started and or flare ,and as i couldnt see an orange glow from my reflective bowl of water on the floor under the air inlet , i decided that my nozzle had finally bitten the dust as they say .
So i tried mounting that new BIG silicone nozzle onto my pipe work , but because of this having a 1 inch bore and a outside dia of about 1 1/4 i could not find anything to hand that would reduce the size and keep it air tight , so i decided to revert back to casting the nozzle on top of a 1 inch adapter that would screw right onto my old fitting , and i thought that at least that way it will help protect the nozzle a bit better, seeings as this tungsten carbide one had not lasted any longer that all my other ones .
3 days later and refractory is all cured and nice and hard i screwed it onto fitting in the bottom of my barrel and started to refill drum , after a few mins i i felt something solid in the charcoal , now when i emptied the drum i could not find the old nozzle and decided it must have burned away i got to admit it was kinda dusty so thats my excuse for missing this hidden in the charcoal
As you can see the top of the volcano is pure glass and trust me it was a tough to break in the end hammering was not breaking it off to well so i put it on the vise and that did a much better job , you can see the normal soft brittle slag around the base that came away easily in my hand , after 5 mins of breaking bits off with the vice i got to this
few more mins of chipping away and then …
That is as much of the slag i dare take off at the moment , but you can clearly see the the nozzle tip is totally unchanged from when it was new, and no oxidation what so ever at all ! so i am putting this particular nozzle the so called tungsten carbide one a roaring success , and remember there has been no water drip or egr on this test run at all , so if anyone wants the link to the company i bought these off then let me know and i will try digging it out from memory it was $24.00 with free shipping