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Anonymous Poster #1

Bed Material

05/21/2017 2:57 PM

Dear Sir,

Is there any easy way to fill Bed Material inside the AFBC boiler furnace? (Time saving)

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#1

Re: Bed material

05/21/2017 3:02 PM

There are many suppliers of shredding machines across the world. Once the beds have been ground down to a suitable size, feeding the shredded beds into the furnace should be pretty straightforward.

Contact shredding machine suppliers directly. They can shred cars these days, so shredding beds shouldn't be a significant problem.

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#3
In reply to #1

Re: Bed material

05/21/2017 3:24 PM

Shredding is also a method of disposal of cast iron baths, according to recent reports.

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#5
In reply to #3

Re: Bed material

05/21/2017 5:35 PM

LOL. But I thought the tool of choice was a big hammer. But whatever, I have seen videos of shredders that will shred anything.

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#6
In reply to #5

Re: Bed material

05/22/2017 1:26 AM

Including another shredder? Franklin Miller vs. Muffin Monster®?

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#12
In reply to #6

Re: Bed material

05/22/2017 7:47 PM

I was actually picturing this, this, and this.

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#14
In reply to #12

Re: Bed material

06/05/2017 10:45 AM

That, that, and that, are the primary reasons why 1000 years in the future, archaeologists digging up our "civilization" will be extremely frustrated trying to find clues as to what we had, used, or did with resources, and will severely underestimate the general rate of resource material use we undertook.

Basically the last employee at the last plant (before he turns off the lights after clocking out for the last time) will be at the shredder plant, destroying the last vestige of American consumerism to be found. Good bye, history, we are shredding ours faster than you can say "scat"!

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#15
In reply to #14

Re: Bed material

06/05/2017 11:41 AM

Sounds like the Shoe Event Horizon.

As the archaeologist digs down, they find layers of ancient cities and cultures, capped off on top by a layer of compressed shoe stone, above which there are no traces of civilization

Something similar was described in "Motels of Mystery".

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#16
In reply to #15

Re: Bed material

06/05/2017 1:54 PM

Well, then one would have to be careful with the contents of the I.C.E. jars. I liked the part where Carson was found making incantations into the great white receptacle, while wearing the ceremonial head plate and ring.

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#2

Re: Bed material

05/21/2017 3:21 PM

Remember to specify some form of magnetic separator to get the shredded bedsprings out of the shredded mattress material.

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#4

Re: Bed material

05/21/2017 4:31 PM

Might be something here you can use....

http://www.dtic.mil/dtic/tr/fulltext/u2/a262952.pdf

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#7

Re: Bed material

05/22/2017 7:51 AM

Dear All,

All replies seems to be not related to AFBC Boiler. I asking about during AFBC Boiler initial starting, Bed Material fillingtime and its easiest procedures.

Thanks.

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Guru
United Kingdom - Member - Indeterminate Engineering Fields - Control Engineering - New Member

Join Date: Jan 2007
Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain, and now disconnecting as Little England and Wales (not too sure about Wales bit, either). Kettle's on.
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#8
In reply to #7

Re: Bed material

05/22/2017 8:05 AM

Unless, of course, the manufacturer's literature is available. And why on earth would it not be in today's interconnected world where there are twice as many telephone numbers as there are people thereon (rhetorical question - NNTR)?

The original post fails to give anything in the way of numerical information nor any indication as to why current procedures, which have also not been shared with the forum, are in any way insufficient to achieve the <...time saving...> required. Which leaves the forum with little option other than to carry out "20 Questions" games to establish any of the above. Most subscribers here simply refuse to play those sorts of games these days.

If there were some idea available as to how to go about solving this particular issue that would help subscribers to help Anonymous Poster #1, who does post in these columns rather a lot, then the original post was indeed the best place to share it...

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Anonymous Poster #2
#9

Re: Bed Material

05/22/2017 9:39 AM
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#10

Re: Bed Material

05/22/2017 1:45 PM

You need:

(1) coal or other solid fuel

(2) means of pulverizing the fuel to suitable size range

(3) conveyance system for fuel to discharge through an air lock, otherwise, the combustion products will back-flow and start a fire in the conveying system.

(4) sufficient atmospheric air flow to maintain a constantly moving fluidized combustion zone (bed).

(5) down stream equipment to handle combustion gases that are polluting, in other words, control of carbon monoxide, and NOx, and possibly SOx.

(6) Heat recovery system to convert heat to steam (HRSG).

(7) means of steam utilization that is efficient, convenient, and reliable.

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Guru
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Join Date: Jan 2007
Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain, and now disconnecting as Little England and Wales (not too sure about Wales bit, either). Kettle's on.
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#11
In reply to #10

Re: Bed Material

05/22/2017 5:22 PM

Coal? For beds? That does sound an uncomfortable sort of place to get some sleep.

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#13

Re: Bed Material

05/23/2017 11:50 AM

I think the thread took an immediate wrong turn and assumed that the issue was shredding beds rather than the actual question.

I suspect the original question was what to use as an easy repair to the refractory liner on the bed of a furnace. Google "ram in place refractory" and it will pop up a long list of castable, ram in place, or gunnable refractories that should do the job. For high wear situations, we used ram in place around hard ceramic fire brick, which also Googles up nicely.

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