This picture has nothing to do with the device that you have described, if for no other reason than the device pictured is machined and with compression fittings and your device had some designations for pipe thread. It looks like equipment from a bio fab lab or from a wafer fab diffusion area.
I was not able to view your original drawing with my browser, but your specs are excessively complex.
Moreover, great doubt is cast upon the extent of your technical expertise in that of your silly use of Ammonium Nitrate, as if the use of a nitrate would give you more ammonia, which, of course, it does not. It is difficult to get and is of no additional benifit over the use of something very cheap and plentiful, like ammonium sulfate at $3.00 for 20 pounds.
The overall sense that is evinced is that you have no idea what you are talking about, you have never done this reaction and that you know no chemistry whatsoever, no even the most basic inorganic reactions. You probably have never even been in an undergraduate lab.
Moreover, you reaction conditions are absurd and foolish. Your temp and preassure conditions are idiotic, preasures above ten or 20 pounds are more than enough and anything above that is evidence of a faulty generator and or dryer design.
And most seriously, your lack of academic or practical knowledge, combined with your foolsh setup and conditions could get someone killed, quite a disservice.