12 INCH TROMMEL BUILD

63bkpkr

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Aug 9, 2007
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AzViper,
Your work/equipment/projects are always top notch!

An observation: It looks like the pulley is quite close to the gas tank. Is there any need or way to keep the pulley from walking over and contacting the tank? I'm a cautious type when it comes to flames and explosions and as long as I am in control of them then they are more fun.

Adding an improved muffler system for reduced db's seems like a wise thing to me. Muffling the sound should reduce the possibility of some anti-noise types from ruining a good prospecting trip.

Have fun....................63bkpkr
 

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AzViper

AzViper

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AzViper,
Your work/equipment/projects are always top notch!

An observation: It looks like the pulley is quite close to the gas tank. Is there any need or way to keep the pulley from walking over and contacting the tank? I'm a cautious type when it comes to flames and explosions and as long as I am in control of them then they are more fun.

Adding an improved muffler system for reduced db's seems like a wise thing to me. Muffling the sound should reduce the possibility of some anti-noise types from ruining a good prospecting trip.

Have fun....................63bkpkr

The pulley is a good 1.0" from the gas tank. The pulley is much closer to the air cleaner box. The pulley is keyed and set screwed. In the photo the pulleys appears to be closer than it really is.

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AzViper

AzViper

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Was out welding and to my suprise Fedex left a package at the door. My Sluice box arrived. I want to thank Chris at Fabrication Specialist for his quotes on a two piece Sluice. Chris's craftsmanship is second to none but I wanted to go with a one piece sluice. Chris was going to add a few extra bends on the top edge to add strength to the box that I did not get with this sluice I purchased but I am going to add (3) aluminum tubes evenely space along the top to secure the sides and can use as handles.

The Sluice box is 60" x 12" x 4" x .080. Its slightly under 12" of which is great as the Gold Hog Mats are 36" so I will be able to get 3 peices cut from each mat. Going to build a frame with adjustable legs to support the sluice. Had thought of hanging the back of the sluice from the bottom of the trommel but decided there would be to much vibration from the engine. The Gold Hog Mat will be here next week so that I can get the mats installed.

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AzViper

AzViper

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With water being a premium in Arizona my trommel will recirculate the water. Having not used a trommel I have no clue how much water is lost out the discharge end of the trommel. From those who have a trommel would it be wise to build a chute to return any water back to the sluice box after the rocks have exited the trommel? The bottom of the chute would be perforated with 1/8" holes.

Chute.png
 

Goodyguy

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I do not get any water out the end of the drum only tailings.
All the water goes through the classifier and into the sluice.

If any more water is going out with the tailings other than because they are still wet then you could be loosing gold.
* No need to drill holes in the central spray bar past the classifier.

GG~
 

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AzViper

AzViper

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I do not get any water out the end of the drum only tailings. All the water goes through the classifier and into the sluice. If any more water is going out with the tailings other than because they are still wet then you could be loosing gold. * No need to drill holes in the central spray bar past the classifier. GG~

Thanks Buddy... Just what I needed to know...
 

Doitlaynstyle

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Hey AZ. I have been wondering ever since you started this thing how long your tube is. And what made you decide to go with that length?
 

KevinInColorado

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Hey AZ. I have been wondering ever since you started this thing how long your tube is. And what made you decide to go with that length?
Ok, that's just a funny question. Sorry, my mind went there.
 

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AzViper

AzViper

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Hey AZ. I have been wondering ever since you started this thing how long is the cylinder on the trommel :thumbsup: And what made you decide to go with that length?

My tube :icon_scratch: is 48.5" long. I went with that length due to once the hopper is installed I wanted to make sure it fit in the bed of my Toyota Tundra. It's a common length for the 12" trommel. Also at the time I did not have a clue of all the clay we are digging. I may wished I had made it longer but time will tell. The classifying area is going to be around 12" with the the remainder of the tube being the wash down area.
 

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AzViper

AzViper

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Found time this afternoon to get the pulley installed with the spring. Even with the tension on the pulley the engine will start with one pull. With the reduction in the sprockets and pulleys I can not stop the rotation by grabbing the cylinder when the engine is idling with the spring load on the pulley.

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Doitlaynstyle

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Found time this afternoon to get the pulley installed with the spring. Even with the tension on the pulley the engine will start with one pull. With the reduction in the sprockets and pulleys I can not stop the rotation by grabbing the cylinder when the engine is idling with the spring load on the pulley.

<img src="http://www.treasurenet.com/forums/attachment.php?attachmentid=869413"/> <img src="http://www.treasurenet.com/forums/attachment.php?attachmentid=869414"/> <img src="http://www.treasurenet.com/forums/attachment.php?attachmentid=869415"/> <img src="http://www.treasurenet.com/forums/attachment.php?attachmentid=869416"/>

It's that a trampoline spring? Lol it looks like one. Should be plenty tough for the job. How are you going to disengage for starting?
 

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AzViper

AzViper

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It's that a trampoline spring? Lol it looks like one. Should be plenty tough for the job. How are you going to disengage for starting?

LOL, that is exactly what the spring is. The engine with the belt engaged starts on the first pull. No need to disengage it.
 

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AzViper

AzViper

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I am putting prospecting on hold for a while. Received word that my brother is not doing well after being diagnosed with throat cancer and going through Chemo and Radiation. In reading about throat cancer its one tough cancer to beat. My brother is in stage 4 where the cancer has spread to his Lymph Nodes.
 

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KevinInColorado

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Same here, all the best to you and him both.
 

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AzViper

AzViper

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Thanks Hefty1, Doitlynstyle, and KevenInColorado. I am happy to say that my brother was able to eat solid food today, not much but its a good sign that two weeks after his last radiation treatment that he was able to swallow food. Prognosis will not be known until he has a Position Emission Tomography (PET) scan in about 2 months. This scan will reveal if the tumors responded or if more treatments will be needed.
 

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AzViper

AzViper

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In drilling holes in the spray bar I used Blue Tape to locate the center of the pipe allowing a slight view of the galvanize pipe to show through. Using a square along the side of the pipe I drew a line every inch along the pipe. Next I center punch where I would drill. Using a 5/64 drill bit I drilled 36 holes down the center of the pipe. I then removed the Blue Tape and taped two more rows off center from the first holes I drilled. Rotating the pipe so that the tape edge is center I drilled angled holes. In all I drilled 106 holes.

Each end of the pipe will have a scheduled 80 PVC threaded Tee fitting so that I can install plugs on the ends of the Tee’s of which can be used for cleaning the inside of the pipe. The other threaded fitting of the Tee’s will be ball valves install so that I can control the water flow from either end of the pipe. The two ends of the pipe will come together with another Tee fitting that the water line from the pump will attach. This will allow me to have equal pressure within the pipe controlled by the ball valves.

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KevinInColorado

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WW, this is hard core cool. Nice work!
 

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