Nickel Slag Grinding Plant
| Annual Output | 0.2 --1.5 million tons |
| Blaine Fineness | 4200-4500 cm²/g |
| Power Consumption | 35-45 kWh/t |
| Matching equipment | Feed belt +Vibrating screen+Nickel slag vertical mill+hot blast stove+dust collector+warehouse |
CHAENG (Great Wall Machinery) can undertake 20 tons --1.5 million tons of Nickel slag grinding plant EPC projects.We can provide EPC- turnkey service including raw material testing, engineering design, equipment manufacturing, installation & commissioning, operation training and finally achieves the designing capacity and production standard. Our company can provide the service from the proposal designing to the plant running to meet your integrated purchase requirement. Select the CHAENG, to provide you with one-stop service that truly allows you to save time and effort!
Process Description
Forklift will transfer the nickel slag from the slag pile to the weighting silo.
During the transportation, the slag will be magnetized and sieved to remove the iron parts.
The pre-processed slag then will be fed to the vertical mill by the elevator for grinding.
After grinding, the slag will be classified and dried by the hot air generator.
The required nickel powder then will be collected by the dust collector and transferred to the final product ware house by air delivery chute and elevator.
Technical Parameters
| Number | Name | Amount | Remark |
|---|---|---|---|
| 1 | Rod brake | According to customer production and the number ofthe feed hopper | |
| 2 | Feeding machine | 1 set | |
| 3 | Belt converyors | According to customer sites and nickel slag quality, a different number converor | |
| 4 | Vertical roller mill | 1 set | Host computer |
| 5 | Precipitator collector | 1 set | |
| 6 | Fan machine | ||
| 7 | Air delivery chute | Pressure roller and tray liner wear after repair | |
| 8 | Roaster | 1 set | Altemativaly coal, gas, natural gas, biomass and other new fuel bumer |
| 9 | Air compressor | ||
| 10 | Cooling Tower | 1 set | |
| 11 | High and low voltage cabinet | ||
| 12 | Control system | 1 set |
Project Case
CHAENG signed the turn-key project of 300,000 tons annual nickel slag grinding production line with Growth Steel Group (Indonesia) on November 2015. This production line is the modified turnkey project with version 2.0 with GRMSS33.31 vertical mill. Currently, this project has finished design, foundation construction and equipment manufacturing,
and soon we will finish the installation, commissioning and this project supposed to start running on July, 2016.
Grinding Advantages
1.Reduce the investment cost with intelligent control
Vertical mill integrated with crushing, drying, grinding, classifying and transporting function with tense structure can save 50% land area compared with ball mill. The vertical mill can be placed outdoor to lower the investment cost. The vertical mill is equipped with PLC/DCS automatic controlling system.
2.Adjustable fineness
The classifier with high efficiency cage shape rotor can adjust the BET within the range of 400-550㎡to meet the customer’s requirement.
3.Power consumption no more than 30kwh
The horizontal mill stone and cone shape roller can guarantee the fed material form able layer to reduce energy consumption. It can save 30-40% energy consumption compared with ball mill.
4.Environment friendly and Easy to maintain
The vertical mill is in negative-pressure while working, thus there is no powder leakage and meets the requirement of environment protection. The overhaul cylinder and the flip rocker make it easy to replace the roller sleeve and liners.
5.Original fittings for the after sales service
After-sales service Fittings like rollers, rockers etc are all manufactured by our company, the quality of which is assured and we solve after-sales problems.
6.Iron parts recycle profit for one ton slag: CNY360
Our specially designed magnetic parts can make the iron parts recycle reach to the percentage of 0.2-0.3%, which can gain profit from the recycled iron parts at CNY360 for processing one ton of slag. Besides it can extend the wearing parts’ service span.
Investment return
Analysis of slag grinding line investment
Taking our 600,000 t/a GGBFS production line as an example, the total investment of this project is RMB 50 million. it has been taken into production on April, 2011. Within 2 years, all the investments has returned and now is benefits. The investment details list as below:
| roject | Indicator | Practical operation |
|---|---|---|
| Start date | Date of start running | April 2011 |
| Investment calculations | Total inverstment | 50 million |
| Cost calculation | Raw material cost | ￥70T |
| Production costs (including salaries, electricity, coal, and maintenance management fees, sales charges, and so on) | ￥50 | |
| Profit calculation | Market sales prices | ￥160T |
| Tons of profits | ￥40T | |
| Annual profit | 40 * 600,000 = 24 million | |
| Economic benefits | Within 2 years, all the investments returned (currently in a State of pure profit) | |
| Slag powder quality | Fineness | 500 m²/kg |
| 7d Activity index | About 100% | |
| Activity index | Pass GB S95 | |
Service support
The world's first strategy of "1 vertical mill, 8 services" - let you have no worries all the way.
