Thermal power generation is still the main mode of power generation, and most thermal power plants use coal as primary energy. With the increase of electricity consumption in summer, the use of coal is also rises, and how to make full use of energy is a common problem in the thermal power industry.
In order to contribute better powder and process to the field of thermal power plant, KEFID Heavy Industry has overcome many difficulties to improve grinding mill relying on more than 30 years of market experience. By integrating advanced technology and innovative design, the grinding mill and prepare process used for clean coal powder emerged as the times require. It is suitable for anthracite, bituminous coal and lignite. It not only improves the explosion-proof performance, but also makes the adjustment of pulverized coal more precise, especially for large-scale coal grinding projects in thermal power plants.
Vertical grinding mill is a product introduced by the company in view of market demand. It adopts advanced technology and absorbs 30 years of manufacturing experience about grinding mill. Vertical coal mill integrates drying and pulverizing at the same time, which can grind materials while drying. And the system is safe and stable.
MTW European type grinding mill is a kind of grinding equipment with many national patents, such as bevel gear integral transmission, internal thin oil lubrication system, arc duct, etc. It takes advantages of mature concept, reliable technology, high capacity and low energy consumption, and can meet customers' production demand for 1.6-0.045mm fine powder.
Lignite coal production line consists of jaw crusher (or hammer crusher), bucket elevator, electromagnetic vibrating feeder, MTW trapezoidal mill and other supporting facilities, compact structure, reasonable application, mainly used for processing lignite coal.
Jaw crusher is an indispensable equipment for crushing lignite coal. It can effectively crush materials with a compressive strength of less than 320 MPa. It not only has the characteristics of large crushing ratio, but also has the following advantages:
1. Even final size,
2. Simple structure,
3. Reliable working condition,
4. Easy maintenance,
5. Low operating cost.
MTW European Trapezium Mill has a large market share in the lignite coal mill industry. Whether bevel gear overall drive, inner automatic thin-oil lubricating system or arc air channel, these proprietary technologies makes machine advanced, humanized and green.
1. Efficient
Bevel gear overall drive reduces noise and increases drive efficiency and capacity.Inner automatic thin-oil lubricating system makes better lubrication for bearings
2. Economical
Edge-replaceable shovel saves you money and frequency-control separator and cyclone powder collector ensure high capacity
3. Advanced
Arc air channel reduces energy consumption and intelligent control ensures better operation
4. Environmentally friendly
Unique air recycling system and dust collector make clean environment
The raw coal is screened from the raw coal yard through the grid screen, then it will fall on the belt conveyor with large angle. After the iron removal of iron, the belt conveyor sends the coal into the original coal bin for storage.
After starting the pulverizing system, you can open the bar valve at the bottom of the raw coal bunker. Start the sealed metering adhesive belt coal feeder, and the raw coal enters coal mill for drying and grinding.
The hot air or production line waste gas from the hot air furnace will go into coal mill by the suction of the system fan. Then it will exchange with the grinding raw coal in the mill, and the pulverized coal is sorted at the separator. Unqualified coarse coal powder will fall onto the grinder, and the qualified coal powder enters the explosion proof with the air flow. The gas box pulse dust collector collects powder and sends them to pulverized coal bunker.
The impurities in raw coal, such as some gangue and metal blocks, are discharged from the coal mill through the air ring and slag discharge port.
As we all know, the outlet size of coal pulverizer will influence final products, but people often ignore assembly gap which will influence outlet and size of final products. In the production line, assembly gap often keeps big to prevent oil temperature from rising. And the gap will be bigger because of nylon jacket substituting for copper sleeve. Particularly, we hardly adjust gap when changing wear parts, so the actual assembly gap is larger than rated value in general.
Appropriately increase coal supply can increase the capacity of coal pulverizer and reduce energy consumption of crushing products. Besides, filling rate of coal in crushing chamber will be increased which can strengthen squashing effect, and the output size will be finer finally. Uniform coal supply is the most important prerequisite for increasing amount of coal supplied.
Due to the uneven distribution of coal, it will cause partial load and overload in the crushing chamber, and even cause unilateral storage and serious fluctuation and overcurrent. In this situation, not only is coal consumption increased, but also the outlet of coal is forced to enlarge, which affects the improvement of coal crusher production and product fineness.
As winter is approaching, heating companies are preparing for heating. At present, there are at least about 2000000 coal-fired boilers waiting for reformed in China. How to improve the performance of coal-fired boilers and improve these efficiency of heating have become a hot topic in the heating industry. After the renovation of the new type boiler, the combustion efficiency of the pulverized coal boiler increases and the discharge of pollutants decreases. The desulphurizing device, denitrification device and dust separation plant can be installed in an integrated way. At this time, coal mill will go to the stage.
KEFID Heavy Industry's coal mill has been launched to market for many years. From the original Raymond mill, high-pressure grinding mill, and then to the patented super pressure trapezium grinding mill, vertical mill and European type grinding mill, high-quality equipment and high standards service become the secret of KEFID Heavy Industry why is popular in customers. Stable operation, large capacity and easy replacement of damaged parts are all advantages of LIMING product, and the company is recognized by more and more customers.
As a new kind of high efficiency and energy-saving grinding equipment, this coal slag mill can prepare quality coal very conveniently, and it will be further developed and popularized. If you want to buy reassuring coal mill, just come to KEFID Heavy Industry.
If you are interested in thethe configurations of lignite coal production line, you can click on the online customer service for a detailed consultation.
For more details, you can contact us online or send email to sales@kefidinc.com now.
