Gypsum/Plaster Factory
Gypsum/Plaster Factory
(OP)
I have been working in this factory for a few months now. I am a fresh graduate. so by all means I do not have any authority what so ever. The factory produces about 30k sqm of boards per day. what really irritates me is that the "superior" people here are using sqm/minute.
I have never seen this in my time studying. I have never seen area flow rate. please guide me as I do not really have much experience.
Feel free to ask any questions, and if you really would like to help me we could communicate further into the problem.
I have never seen this in my time studying. I have never seen area flow rate. please guide me as I do not really have much experience.
Feel free to ask any questions, and if you really would like to help me we could communicate further into the problem.





RE: Gypsum/Plaster Factory
Are all of the boards the same width, or are various width boards made from time to time?
Good luck,
Latexman
Technically, the glass is always full - 1/2 air and 1/2 water.
RE: Gypsum/Plaster Factory
they only increase some of the additives which are introduced to the mixer manually. the mixer is set only at 9.5 tons per hour and cannot be increased further.
what I think I should be doing is redo the calculations on a volumeteric flow rate, as in cubic meter per minute.
RE: Gypsum/Plaster Factory
What problem are you solving, and how will it make the owners more money?
Matt
RE: Gypsum/Plaster Factory
Good luck,
Latexman
Technically, the glass is always full - 1/2 air and 1/2 water.
RE: Gypsum/Plaster Factory
Good luck,
Latexman
Technically, the glass is always full - 1/2 air and 1/2 water.
RE: Gypsum/Plaster Factory
@Latexman the slurry density does vary from 1.15-1.22 kg/m3(I'm not sure if it's the right unit they use). I doubt that they do this precisely. they are using a plastic cup, then weight it, then divide the weight over the plastic cup's capacity. it may sound experimentally fine but the percentage of error here I have to say is between 5% to 15%(human error, cup not properly handled, etc)
RE: Gypsum/Plaster Factory
Good luck,
Latexman
Technically, the glass is always full - 1/2 air and 1/2 water.
RE: Gypsum/Plaster Factory
A simple spreadsheet program can easily convert the production capacity of square meters per minutes to determine the raw materials requirements in units of kg/sec.
RE: Gypsum/Plaster Factory
@bimr fair enough, but different compositions have different effects on the board. let's say the moisture level, the bonding of the board, the flexural strength. lots of factors can get affected due to variation of the consituents, is it not?
they are not sold on a unit basis of sqm. they are sold on a unit basis of number of boards or stack. each stack has 62 boards. so it does not matter if the production units is sqm or kg/sec.
if, for example we were producing papers. then the sqm/min does not bother me. but the boards have a certain thickness and it varies from board to board.
RE: Gypsum/Plaster Factory
If there is a shortcoming of the current method - perhaps a fraction get the wrong amount of additives, or you can't easily measure margin because you don't know the volume of raw materials - then the shortcoming that you are trying to rectify should tell you the what measurement you should be using.
Matt
RE: Gypsum/Plaster Factory
for example, consider a bottling machine in a food plant. Production rating = bottles per minute.
http://www.google.com/url?sa=t&rct=j&q=&am...
Food machinery is rated in bottle per minute despite the fact that the food content varies with production run and the product is delivered in case or pallet loads.
Your plant is making gypsum board in M2 quantities. Rating production in cases per year, pallets, stacks etc. does not make any sense when each pallet may contain different quantities, each board may be a different size, width etc.
The common denominator in production capacity is the M2 produced.
http://calculatelca.com/wp-content/themes/athena/i...