Product Description
Product Description
Energy-efficient Production Lines for Lignite Drying, Burning, Upgrading and Its Safe Operation
lignite drying process requirements
1.We need explosion protection system in lignite crushing system, conveying systems, warehousing systems or going into the rotary dryer.
2.We should keep the outside air from the lignite rotary dryer and seal the burner,rotary dryer tightly.
3.Lignite drying system process should use fully automatic production line process line and be installed explosive alarm system in every explosive point.
Target:
1.Lignite drying capacity: first moisture 30% ~40%, final moisture 8%~15%.
2.Lignite heat (heat value): from 3400 ~ 3700Kcal / kg to 5000 ~ 5500 Kcal / kg or more, making lignite the burning for thermal power plants or other industrial coal furnace.
Technical requirements for combustion systems and safe operation in lignite drying:
1.Basic principles for lignite combustion:
Burning off rate: 99%.
Slag content: 1%. (yellow-white and non-toxic).
Flame covers 95% of furnace,( clear and transparent).
Chamber temperature:700 °C ~ 1200 °C.
PLC control system and DCS control systems aside the furnace.
Heating capacity : 5000Kcal / kg or more.
Basic principles for lignite combustion
1.Ensure the combustion time of pulverized lignite in the furnace;
2.Ensure the temperature of the combustion process;
3.Ensure the best mixture of wind and coal in the furnace
Safety measures for lignite drying process
(1)Finished coal warehouse.
(2)Using energy-efficient diffusion-type coal furnace.
The furnace must have the following functions:
1.Provide qualified air temperature and air volume, meet the heating capacity.
2.The furnace temperature is stable, and the furnace is filled with orange and transparent flame. The flue gas oxygen content is below 4%.
3.The burning off rate of the furnace reach 98%, with reasonable wind distribution, which will not produce coking phenomenon. Hot air furnace will not use manually slag discharging, while using mechanical automatic bottom slag discharging.
4.It will not have large amount of heating elimination with a good insulation system. The outside temperature will be less than 50 °C.
5.The furnace is equiped with automatic diesel ignition system. It can begin production once there is some burning pulverized coal in the pulverized coal warehouse.
6.It achieve fully automated unattended operation (except meter worker and cleaner).
(3)Using specialized lignite feeding chute.
(4)Using energy-efficient lignite specialized rotary dryer.
Its key technology is
1.Wide-angle screw feeding plate and trap cut lifting plate.
2.According to the initial moisture, we can adjust the speed of the dryer to ensure the yield and quality of the dryer.
3.Install a liquid CO2 injection device at the end of the dryer.
(5)Explosion-proof measures for the bag dust removal
Packaging & Shipping
We have developed long and good relationship with many shipping agents.
Ocean freight partners are: APL, COSCO, OOCL, CSCL, MSC, etc. and train shipping is also available.
The perfect shipping way and best service with lowest price are always provided for customers.
Our Project
Our Services
1)Pre-sale services: enthusiasm
Provide you the prophase plan, process flow design and manufacturer equipment according to your special demand.
2)Sale services: servant
Send technicians to the jobsite for guiding the installation and adjustment, training operators and finishing the check and accept together with you.
3)After-sale services: faithfulness
To establish long term friendship, we will regularly pay return visit to customers.
Service Commitment
The product has a warranty period of one year since the date of sale, during which, our company will repair the fault caused by product quality for free, while, faults caused by incorrect operation, improper maintenance, as well as fire wear and tear are beyond the scope of warranty.
Users need to submit product information to our after-sale service department within the fixed time after purchasing our products, for us to establish customer archives. We have recorded all our products that have been sold, so users need to properly record the products brand and number indicated in certifications, for us to do the follow-up service.
We provide a life-long maintenance service for all products sold by our company
FAQ
1.Why us?
We provide professional industrial furnace and industrial design as customer order.
2.How is the quality of your products?
Our products are manufactured strictly according to national and international standard, and we take a test on every grinder before delivery.
3.Guaranteed?
If products' quality is not consistent with the description as we described or the promise before you place order, we promise 100% refund.
4.How about price?
Yes, we are factory and be able to give you the lowest price than market one, and we have a policy that " for saving time and absolutely honest business attitude,we quote as low as possible for any customer, and discount can be given according to quantity".
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