Showing posts with label rotary drum dryer. Show all posts
Showing posts with label rotary drum dryer. Show all posts
6,000,000 KCal/Hr HGG
Yes this one is huge, capable of combusting 2 ton per hour of rice husk. This unit were use to supply hot gas to a ball mill in a cement plant in the Philippines.
6,000,000 KCal/Hr HGG
It is equip with sensors and inverters for control from a DCS which is 50 meter away. Only one person are posted on site and monitoring and control are carried out from the control room.
Key Features of the HGG
- 18 inch furnace wall with extra outer insulation for very low heat loss
- Automatic Deashing
- Automatic Feeding
- Inverter for FD and ID Fan
- PLC built in
- Ash Auto Mix to Ball Mill
- Over Temperature Release Vent
- and many more
PLC control in DCS
Maximum Savings of RM4,000 per hour is possible when compared to the use of fuel oil for combustion.
One of the plant we sold have a more advance furnace which reduce manpower and also ease of operation .
As pelleting need very accurate moisture content , the Hot Gas Generator help tremendously especially for big scale operation and also for less experience operator .
The Moisture Content of dust was constantly within ± 1% MC after exiting the dryer . This eliminates one of the most important varible in pelleting , in my previous post I mentioned that MC consistency are very important for good pelleting .
To explain a bit why the Hot Gas Generator helps a lot and normal furnace have it's pertinent issues . Normal furnace feeding of fuel is by hand , worker tend to overfeed the furnace which have small grate , by doing so the worker will have longer time to sit , by doing so too the temperature of the furnace will fluctuate through very wide range which cause drying inconsistency . Hot Gas Generator feed fuel automatically at set parameter and flame in furnace can be control by fan , this will give consistent flame in furnace continuously thus consistent Moisture Content of the sawdust output from dryer .
The last 6 months was hectic, nevertheless installing and commissioning them successfully was most satisfying.
Much improvement have been added to these plant which makes pelleting success a breeze, not many can claim good pelleting within few days of commissioning .
4 pellet mill
2 pellet mill
1 pellet mill in operation
If you notice the pellet quality , there is little dust and pellet was just nicely compact ( not black ) and the length is what was set by the knife ( not short or broken ). I believe those who produce this kind of pellet will have very low electricity consumption and low wear and tear on parts .
As for us , our motto is finding the " SWEETEST SPOT " . Achieving this will automatically reduce tremendous cost thus higher profit per ton .
Maybe I am not convincing enough in my statement that PELLETING is very difficult .
My records and visits to many pelleting plant , be it Wood or EFB Pellet , till todate the failure is nearly approaching 20 plant , big and small included . Definitely the number is much higher than this figure .
Potential Investor must understand the reason behind it to figure out why so many failure in this industries .
I append the major factor for the failure :
1 ) Wrong Machineries
Pelleting process need very high pressure to bind the dust back into pellet , many machineries are not able to cope with the HIGH PRESSURE and thus will be damage before it even start to really produce pellet .Talking about pressure , do you know how it work ?
Pelleting need dry dust , dryer are needed to do the job , that is why American Dryer price are in the range of USD1 Million and above , the reason is you need consistent Moisture Dust to be able to produce consistently good grade pellet , otherwise there will be no pellet at all . I doubt many understand the science of drying !!
Small Pellet Mill smaller than 500 kg / hour are a definite no no unless you are willing to put your money to burn , go calculate the returns !!!
Go look at my video on Wood Pellet Manufacturing again , look at the rate of output and then compare the price of machineries . Then go visit the supplier and look at their output to be convince .
The above are only 20% of the main factor , if you do not know about the above , please do not invest , do your homework again , don't waste the precious cash for FAILURE .
2 ) Service and Training
I did mentioned earlier about this . The machineries from China is cheap because they do not provide proper Service and Training , this cost will easily increase their pricing by at least 20% . Low price act as an inducement for potential investor , so many will jump in but end up without anyone to turn to when failure stare at them
Supplier of machineries are just supplier , I am convince many are great Marketeer , they have never run a pelleting plant before . So when the going gets tough the supplier do not get going , they just ignore you .... , sounds familiar I guess .
Supplier are from China , they are not locals , they cannot stay long to guide and train local staff , so you can guess what will happen if problems start to crop up , who you gonna call !!
3 ) Experience and Skill
Ask yourself , how much you know about Biomass and Manufacturing , I would say , if you are going to invest based on the so many inquiries you get from the market , please keep your cash in the Bank , at least it earn interest . If you do not have over few years on Material experience and few years in manufacturing it is a definite no no to invest
Do you have an enquiring and analytical mind ? Every action will have a reaction , when something happen there must be REASONS why it happen , it cannot happen just out of nothing . There is a Chinese saying , Die also don't know because of what !! I am saying this because this will happen many many times and you will need your skill and experience to overcome it
Mark my word , go check around before you really decide to invest in this industry . There are too many failure which is not good for this industry overall .
At last we have arrive at the Ultimate Pellet Burner with European Standard Capability .
When we say European Standard , we mean it , in terms of many facet . It run 24/7 , for many weeks without intervention , just fill up tank , set correct temperature , light up , walaaaaaa . No hassle , no worker ( " go to sleep if you like " ) , consistent heat output , no smoke , no cleaning and many many more .
BUT MOST IMPORTANT , PLENTY OF SAVINGS .
BSR500
This picture shows a flame of 8 feet height and 4 feet length . The power of this Burner is 500,000 KCal / hour .
BSR500 Burner features :
1 ) Multi Pellet Fuel
2 ) Automatic Function just like Diesel or Gas Burner
3 ) Fuel savings of over 50% compared to Diesel or Gas
4 ) Over 80% Efficiency of energy conversion from Pellet to Heat
5 ) Robustly Build with minimum maintenance ( no burning chamber to repair )
6 ) No operator needed , just fill the tank and run
7 ) Quick startup time of less than 5 minute to peak capacity
8 ) Size can be made to order depending on your furnace , minimal modification needed
9 ) High power fuel use lesser storage space , Only option for SME with small factory space
10 ) Very Very clean , no smoke , no pollution
and many many more reason for you to change to RENEWABLE ENERGY
If you are doubtful about this burner and supply of pellet fuel , we can supply the burner with fuel and charge based on your usage or fixed monthly rate , we guarantee savings before taking up the replacement of your current burning method .
Currently we have a unit running in Kelantan , firing into furnace . The heat are used to dry sawdust in a drum dryer at rate of 2 ton per hour output . Previously the furnace use wood offcut to the tune of 4 ton per shift of 8 hours , currently with the new burner , the furnace consume wood pellet of less than 1 ton / shift .
Some pictures of the Burner in position firing into the furnace .
We are touching this topic specifically due to it's importance to make good wood pellet unless your sawdust is already dried to 15% Moisture Content ( MC ) .
If you have gone through our earlier writings , the cost of drum dryer are significant for a Whole Line Wood Pellet Plant . The High price are due to it's big structure and complication in maintaining stable MC sawdust output . Sawdust comes in various MC from 12% to 60% , therefore it is important to control the MC for optimum pelleting otherwise you would not get high standard wood pellet and high production efficiency .
We will now study a typical drying process base on the following conditions :
1 ) Input Sawdust MC 35%
2 ) Output Sawdust MC 12%
3 ) Drying Rate 2 Ton Per Hour Output
To reduce MC from 35% to 12% you would need to evaporate 20% of water , based on 2,000 kg per hour output , water that need to be removed is 600kg and the input sawdust is 2,600 kg/hr .
To remove 600kg of water you will need 640kw ( 550,000 kCal/hour ) of energy which is equivalent to burning 200kg/hour of wood offcut . In short 100kg/hour need to be combusted to dry 1 TPH ( output ) sawdust . Cost of drying would be about RM5 / ton sawdust if your offcut cost is RM50 / ton .
The Calculation Chart below is from ASPENTECH software and reconfirm by manual calculation which I did not show here due to it's tediousness of calculation , suffice to say the input data , output data and design of the dryer are correct .
Drum Dryer selection are important , many factor affect the cost of the dryer , in this case we believe Drum Dryer Size of Diameter 1.5 meter X Length 9 meter should be enough to dry 2 TPH of sawdust .
Cost of this dryer should be around RM200,000 landed in Malaysia c/w stove , electrical panel and cyclone .
We hope to use this Dryer and the Pellet Mill to make EFB Pellet once we have started Wood Pellet Production probably in August 2011 .
Drum Dryer selection are important , many factor affect the cost of the dryer , in this case we believe Drum Dryer Size of Diameter 1.5 meter X Length 9 meter should be enough to dry 2 TPH of sawdust .
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