what is inside of a Rear projection TV ?!
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- Опубликовано: 13 сен 2024
- In this video i take a part rear projection tv for some precious metals and lenses and other interesting components
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• DIY Solder pot Tin bat...
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Hi doctor, your films are very, very good. Thank you for your efforts. Thank you very much. We used them a lot. Just one thing, doctor. You
Thanks mate.
🙏
I did an old tv like this too kept the lens as well and was fun taking apart hope you didn’t forget the small pcb on plastic lens 👍🏽
I always process all CRT glass tubes; they yield an average of 22% pure Lead, and a little Barium. The front panel glass contains a nice amount of Barium, and some Lead. The flourecent layer on the inside of the front panel glass yields REEs (Rare Earth Elements).
The thick glass lenses you took out contains various REEs; so do camera lenses, scope- and/or binocular lenses, and some lenses inside electronics.
Internal metal parts in the CRT tube are nickel steel, which is processed for Nickel recovery.
Any type of PCBs are processed for solder recovery. First in 6.5% HCl for the tin, then, after rinsing with distilled water, in 9% HNO3 for the lead; both steps at 80 C in water bath. Wet electrolytic capacitors are pyrolyzed in a heavy thick walled stainless steel vessel (they explode when heated) and yields a lot of aluminium. Electronic components are sorted and processed according to each type. Every value is extracted.
The bare boards are treated for Bromine recovery, pyrolyzed, and ends up on the shaker table where the copper layers are separated out.
That was awesome explanation of full recovery process. All interesting , I've never known about bromine recovery from PCB'S
@@PickyPlans. Never heat a PCB! At 180 C it gives off HBr, and lots of other hazardous fumes from the epoxy. All PCBs contains anywhere from 1 to 15% Bromine.
Be careful when you encounter oil in electronics. Having scrapped many old oscilloscopes I'm always aware that the oil is in fact highly carcinogenic Polychlorinated Biphenyl ("PCB"); same goes for things like Fluorescent Light Ballasts and Wet Electrolytic Capacitors, usually those pre 1979, though "PCB" was not fully banned until 2001. Whether all Chinese manufacturers have eliminated "PCB" in their products is an open question!
Have you seen my comment (3 parts) on this video: ruclips.net/video/UugorCcXEYw/видео.html .?
@@PickyPlans. Hot HBr, and also Cl gas (when making free HCl acid from plastic) eats almost everything. If you wanna build an apparatus capable of withstanding HBr, Cl, and even F, you should take a look at the different Monel Alloys.
I have 4 pyrolysis units, all constructed with individual modules. Same fire chamber, but different separate pyrolysis vessels. One is made entirely of stainless steel for handling corrosive material.
As a scrapper I have a steady supply of discarded brand new stainless steel cut offs from productions. Whenever fx. a pipe shows sign of corrosion I just cut it out and weld in a new piece. Maintenance at no cost! Seals are ceramic fiber cord which lasts for the full pyrolysis run, and must be replaced before the next run anyway.
Elementary Bromine is notoriously difficult to store. It disappear out of bottles through the tiniest microscopic gap under the lid of bottles. It even escapes through the walls of plastic bottles, except PFTE bottles. Glass bottles are perfect as long as they are completely sealed. I pour 2 kg of elemental Bromine into old 3/4 liter wine bottles. With a homemade circular gas burner the neck is heated until the glass becomes soft, it's then twisted to seal the bottle completely. This leaves a thin sharp tip of glass on the top of the bottle neck as part of the upper neck disconnects during sealing. Immediate reheating and gentle taps with a water soaked wooden pin flattens out the very top of the shortened bottle neck. Just as a side note, the latest sale of Bromine was 40 kg.
There are several ways to extract Bromine from e-waste. Common is whatever way you choose it's always a multi step process. Which way to go depends on whether your raw material is waste plastic with added Bromine Fire Retardants, or bare Printed Circuit Boards. It also depends on whether your aim is HBr acid, NaBr, or elemental Bromine.
During the past 12 years I've spent more than $100.000 travelling around the world visiting lots of recycling companies and commercial metal refiners. I've seen it all, so I don't travel much anymore. My latest trip a couple of years ago was to Brasil. I spent a month passing by both small and big companies to study the Brazilian recycling industry. Very impressive.
Scientific research is steadily revealing new results, so I'll continue to buy scientific papers showing the lastest research reports.
After having spent a fortune and virtually thousands of hours during the years to gather the knowledge I now have, I'm more than reluctant to show everything on a public forum for free. It seems a bit unfair to me after having paid lots and lots of money for information, just to give it away for free. Anybody can then copy the procedures without having contributed with a single dime or penny; or any useful information in exchange. In fact I considered for several days before deciding to reveal the full process of solder recovery from PCBs.
Be aware that some processes are covered by patents and cannot be used without paying for a license to the owner; something people in certain countries don't give a damn about. I don't want to get into trouble.
Additionally, a few processes was shown to me solely against a promise of never revealing anything to anybody. They are actually in house developed processes highly guarded as business secrets. This category will definitely not be disclosed no matter what, as I'll never break a promise.
I could make hundreds of videos on YT showing virtually all profitable aspects of scrapping/metal extraction/refining, but I don't have time for it. Ad revenue would cover some of the costs for having obtained all precious information; however, I can still earn a better income by doing backyard scrapping. No scrapping videos goes viral with millions of views; they're too specialized.
Countries like India, Pakistan, Indonesia and the entire Middle East, among others, are full of people who are pleading for complete tutorials on various subjects so they can make a lot of money. They doesn't do anything themselves, and still expect to have everything served for free on a silver plate. I'm seriously tired of all those annoying beggars.
I don't exactly need money for providing useful information. I make $250.000/year in highly effective streamlined backyard scrapping, that's a sufficient income. It's just that the deprived morale of some people is disgusting and unforgivable.
Not that I don't want to help people in general, but in this case it'll be limited to those who show initiative and at least try to solve technical obstructions by themselves. If someone is stuck with a problem I'll gladly advise to find a way out.
Nice! Do you have a vid on the solder bath? Looks like it works well? Keep up your great and interesting work.
I love scrap break downs. Sorry cannot advise on chip other than open it up and see whats inside.
That big ic things are called amplifiers.Did you got dlp chip?I heard that fhd projection TVs got them.
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sooo big tv😂