Coal water slurry equipment

Introduction to Coal Water Slurry

Coal water slurry is a low pollution, high-efficiency, and pipeline transportable alternative coal based fluid fuel obtained through physical processing of approximately 65% coal, 34% water, and 1% additives. It has changed the traditional combustion method of coal and demonstrated significant environmental and energy-saving advantages. Especially in recent years, after adopting the technology route of waste resource utilization, the successful development of environmentally friendly coal water slurry can greatly improve the environmental benefits of coal water slurry without increasing costs. Under the guarantee of abundant coal resources in our country, coal water slurry has also become an economical and clean energy substitute for oil, gas and other energy sources.

Advantages of coal water slurry

1. Economy: Coal water slurry belongs to coal based clean fuels, and China's energy structure determines that the price increase of coal is lower than that of fuel and gas. Compared to fuel oil, 1 ton of heavy oil in coal water slurry can save about 1000 yuan.
2. Safety: Coal water slurry is a non flammable fluid, and its safety is greatly improved compared to the flammable and explosive properties of oil, gas, and coal powder.
3. Universality: Coal water slurry is suitable for various boilers.
4. Efficiency: High combustion rate of coal water slurry, saving fuel. The combustion efficiency is over 98%.
5. Environmental friendliness: Coal water slurry is a deep clean coal technology that meets environmental standards. The raw material for coal water slurry is washed clean coal with low ash and sulfur content; The combustion temperature of coal water slurry is 100-200 ° C lower than that of coal and fuel oil, greatly reducing the generation of SO2 and NOX, and reducing pollution emissions. At the same time, the coal water slurry is stored in a sealed manner with a small footprint, and there is no secondary dust pollution from coal and ash sites.

Introduction to Coal Water Slurry Production Line

The coal water slurry production line is a technology that converts traditional solid coal fuel into liquid fuel to obtain coal water slurry. It uses coal as the main material and water as an auxiliary to grind and refine it into a uniform and flowable liquid. Coal water slurry is an ideal substitute for oil and coal as a clean fuel, which can be widely used in industrial boilers, industrial kilns, and power plant boilers. Coal water slurry technology is a suitable oil substitution, environmental protection, and energy-saving technology for the current stage in China. Therefore, it is listed as a key high-tech development technology in the clean coal plan. It has significant strategic importance in China's energy development plan.

Process flow diagram of coal water slurry production line

The production of coal water slurry can be divided into dry and wet methods. Dry method slurry production includes raw coal crushing dry grinding (dry coal water slurry ball mill) kneading (water dispersant) stirring (stabilizer) stirring filtering slurry coal water slurry finished product. Disadvantage: 1. The moisture requirement for the feed coal is high, less than 5%. 2. High energy consumption, with a 30% increase in energy consumption compared to wet pulping. 3. Dry grinding is not safe, and the particle size effect of the pulp is not good.
Wet pulping includes high concentration grinding pulping, medium concentration grinding pulping, high and medium concentration grinding grade preparation pulping, and high concentration wet pulping: raw coal crushing high concentration grinding (wet coal water slurry ball mill, water, dispersant) - (stabilizer) stirring filtration pulping water coal slurry finished product. Medium concentration grinding and pulping: raw coal crushing high concentration grinding (water, dispersant) fine grinding (high fine coal water slurry ball mill) filtration kneading (water dispersant) stirring (stabilizer) stirring filtration slurry coal water slurry finished product. More related processes and equipment for coal water slurry ball mill pulping can be directly inspected and purchased at our company.

How to prepare coal for coal water slurry production line

The coal water slurry should be made from washed coal or selected from low sulfur and low ash coal slurry. Coal can be washed to remove 30% -40% sulfur (60% -80% sulfur from pyrite); Removing 50% -80% of ash content (such as coal gangue) reduces the amount of original smoke and ash, resulting in lower sulfur content and ash content in the slurry. What is the purpose of coal selection? Different coal water slurry and user requirements have different coal usage. The purpose of coal selection is to meet the user's requirements for ash content, sulfur content, and calorific value of coal water slurry.
1. Ordinary coal water slurry is prepared using conventional coal selection methods before pulping, and the ash content of the raw coal used for pulping is generally around 9%.
2. Fine coal water slurry generally needs to go through two coal preparation processes. The first is the conventional coal preparation method, which reduces the ash content to about 9%. Then, it is finely ground to fully separate the minerals and combustibles in the coal. Finally, a special method is used to reduce the ash content of the coal to about 1%.
3. High ash coal water slurry, the raw material of the slurry itself is washed tail coal, which does not need to be washed.

Introduction to Coal Water Slurry Equipment

The production process of coal water slurry generally includes coal selection, crushing, grinding (special ball mill for coal water slurry), stirring and shearing, as well as filtering slurry to remove super particles and impurities from the final product. The cost of selecting crushing, grinding, and mixing equipment is relatively high. Users should be cautious when choosing equipment. The necessary crushing and grinding equipment in production generally includes coal water slurry ball mills (commonly used), Raymond mills, medium speed mills, fan mills, rod mills, vibration mills, and mixing mills. The selection of crushing equipment is generally based on the size of the selected coal. The water coal slurry production equipment produced by Gongyi Hongtong Machinery includes professional raw coal crushers, impact hammer crushers, vertical crushers, two-stage crushers, energy-saving water coal slurry ball mills, high-precision water coal slurry ball mills, water coal slurry coal mills, water coal slurry storage tanks, water coal slurry boilers, and water coal slurry control systems, which are specialized equipment for water coal slurry production. Other related auxiliary equipment includes: mixing drum, slurry filter, kneading machine, medication measuring tank, water measuring tank, dispensing tank and other products.

Technical parameters of coal water slurry ball mill

Note: The equipment model parameters are constantly being improved. If you cannot find the required model in the parameter table, you can contact us directly. Our technicians will configure the equipment that best suits your production needs and site requirements according to your requirements.