What are the problems associated with the use of Guoning vaporizers?

The Ningmei furnace is now called the Shenning furnace; I have never heard of the so-called Guoning powder gasification furnace you mentioned. Pressurized coal gasification furnaces: What is currently very popular in China is the Aerospace coal gasification furnace, as well as the Shenning furnace (a gasification technology that was developed through technical innovation by Shenhua Ningmei based on the GSP furnace technology). Powdered coal gasification abroad: Shell, COREX

Potential problems that may arise during the use of Guoning gasifiers include: system blockages, low gasification efficiency, severe equipment wear, difficulty in temperature control, and high maintenance costs. These issues may affect the proper operation of the gasifier and its production efficiency. It is recommended to thoroughly understand the product’s performance before purchasing and using it, and to carry out regular maintenance and inspections. .

During operation, the Guoning pulverized coal gasifier may encounter the following problems: 1. Slagging and ash deposition. Slagging: The high temperature inside the furnace causes coal ash to melt and adhere to the furnace walls, thereby reducing heat transfer efficiency; in severe cases, it may even block the furnace chamber. Dust accumulation: Coal ash builds up inside the furnace, reducing heat exchange efficiency and increasing the frequency of cleaning. 2. Wear and corrosion: Wear: High-speed air currents and coal dust particles cause wear on the equipment inside the furnace, especially the nozzles and furnace walls. Corrosion: High temperatures and chemicals such as sulfides can corrode equipment, reducing its service life. 3. Low combustion efficiency and incomplete combustion: Improper operation or poor quality of coal can lead to inadequate combustion, reducing efficiency and increasing pollutant emissions. Heat loss: Poor insulation of the furnace or improper operation can lead to heat loss, thereby reducing overall efficiency. 4. Pollutant emissions: Gas emissions: Harmful gases such as SO₂ and NOx may be generated during the combustion process, necessitating the use of desulfurization and denitrification equipment. Dust emission: Coal powder combustion generates large amounts of dust, requiring efficient dust removal equipment. 5. Complex operation and high automation requirements: The vaporization furnace requires precise control of parameters such as temperature and pressure, making the operation complex and demanding high levels of automation. High maintenance difficulty: The equipment has a complex structure, making maintenance and repair challenging. 6. High requirements for coal quality. Impact of coal quality: Different coal qualities have a significant effect on combustion efficiency and slag formation; therefore, strict control over coal quality is necessary. Pre-treatment requirements: Coal powder must undergo pre-treatments such as drying and crushing, which increases costs and complexity. 7. Safety hazards: Explosion risk: Coal dust is flammable and explosive, and improper handling may lead to explosions. High temperature and pressure: The high-temperature and high-pressure environment inside the furnace poses safety risks such as burns and explosions. 8. Cost-effectiveness: High initial investment: The costs of purchasing and installing equipment are relatively high. High operating costs: Fuel, maintenance, and the operation of environmental protection equipment all result in high costs. In summary, the Guoning coal gasification furnace faces challenges in terms of slag formation, wear, combustion efficiency, pollutant emissions, operational complexity, coal quality requirements, safety, and cost-effectiveness; its performance and safety need to be improved through optimized design, operation, and maintenance.