On December 13, 2020, Gao'an Jimin's "centralized gas supply" clean energy project officially began a trial operation of gas supply to 36 ceramic companies in Gao'an Ceramics Construction Base. During the gas supply trial operation, some companies said that "many problems such as large air pressure fluctuations, unstable calorific value, increased energy consumption, product deformation, color difference, pinholes, etc." The local government attaches great importance to this, inviting experts and third-party testing agencies to conduct on-site sampling, and holding multiple technical seminars to find solutions.
In order to promote the safe and stable operation of centralized gas supply projects and truly meet the standards of energy saving and consumption reduction, centralized gas supply not only realizes clean production in Gao'an production areas, but also serves as a step towards high-quality and sustainable development of Gao'an ceramics industry. important promoter. In 2021, the Jiangxi Ceramics Base Management Committee specially hired a technical team of more than 20 people from Jingdezhen Ceramics University. This technical team is led by Professor Feng Qing and involves doctoral and graduate students in thermal engineering, materials, machinery and other professional fields. We conducted technical diagnosis on the gas testing production line and stayed at the base for 6 months to effectively solve the pain points and difficulties in centralized gas supply.
Xi Yongchun, Secretary of the Management Committee of Jiangxi Ceramics Industry Base, said: “Based on the on-site analysis of gas kilns used by 33 ceramic companies in the base by professors from Tao University, we followed the instructions provided by the experts on changing guns, changing sets, and inspecting the kilns. Through technical operations and other related solutions after atmosphere detection, the gas cost of enterprises can be reduced by about 20% compared with last year during the centralized gas supply trial operation. ”
Gas cost can be reduced by 20%
The pain points of gas supply are expected to be solved
As the first large-scale "centralized gas supply" project in the construction and ceramics industry, Gao'an Ceramics' centralized gas supply has attracted great attention in the industry from its inception to its trial operation last year.
On February 19 (the eighth day of the first lunar month), Feng Qing, a professor and doctoral supervisor at Jingdezhen Ceramics University, led professors from thermal engineering, machinery and other related disciplines to conduct an on-site visit to understand the gas kilns used by 33 companies in the Gaoan Ceramics Base. An analysis was conducted on related problems such as unstable air pressure, insufficient calorific value, color difference in products, and excessive energy consumption when the enterprise used gas in December last year, and a set of solutions was proposed.
On the afternoon of February 22, the Jiangxi Ceramics Industry Base Management Committee organized a technical exchange with the directors, technical department managers, kiln supervisors and other personnel of the ceramics enterprises in the base. Professor Feng Qing of Jingdezhen Ceramics University made a presentation on the use of gas by enterprises. Relevant issues, as well as data and information analysis collected by experts on-site, conduct technical exchanges with relevant production personnel of the enterprise, and provide corresponding solutions.
At the exchange meeting, Professor Feng Qing said: "Regarding the use of gas, problems such as color difference and deformation of products fired from kilns are caused byIt is caused by many factors, but the uneven temperature of the kiln will definitely cause color difference. How to make the temperature of the kiln uniform requires the operating techniques and skills of the kiln workers. At present, the burner must be replaced. At the same time, the kiln must be inspected. Monitor and analyze the atmosphere and adopt effective operating procedures. Excessive energy consumption is also closely related to the operating methods of kiln workers. The air pressure fluctuates greatly, and the key is the stability of the gas source. Jimin Credible Clean Gas Company must ensure that the air pressure is stable when leaving the factory. ”
Xi Yongchun said at the exchange meeting: "The technical team of Jingdezhen Ceramics University will stay at the Gao'an Ceramics Construction Base for 6 months to follow up on the various technologies and production processes that have emerged in the centralized gas supply of ceramics enterprises. Conduct technical analysis and exchanges on other issues to ensure the smooth progress of centralized gas supply.”
With the ignition and gas production of the Jimin Credible Clean Energy Project, a graduate team composed of Jingdezhen Ceramics University will be stationed in each factory to guide the company's kiln and production technicians on-site to standardize operations and quickly improve the company's technical level. Ensure kiln firing is stable.
It is understood that if improvements can be made according to experts’ technical and operational methods on related issues, Gaoan centralized gas supply can reduce costs by 20% based on last year’s gas supply trial operation.
In 2020, most ceramic production areas across the country that implemented the "coal-to-gas" transition have experienced problems such as insufficient natural gas supply and "gas outages." Gao'an, as the second largest ceramic production area in the country, has concentrated production capacity and large scale, and must achieve cleanliness In production, the implementation of centralized gas supply is a must-answer question.
Xi Yongchun emphasized at the meeting that through last year’s trial operation, the gas source of the centralized gas supply was very good and clean. The current task is to ensure the safety and stability of gas consumption. In addition to ensuring stable gas supply every minute, 24 hours a day, 330 days Under the premise and improved according to the requirements and methods of experts, the gas consumption of enterprises will be safe and stable.
“Centralized gas supply must not only make gas available to all enterprises, but also make it affordable. The first phase of the project will supply 9 billion cubic meters of gas, and the second phase of the project will supply 12 billion cubic meters of gas. The park The gas consumption pressure is 70 kPa. Therefore, enterprises must carry out transformation according to the standards and solutions proposed by experts. Later, the base will also hold relevant technical exchange meetings from time to time and operate according to the plans proposed by experts and professors. I believe these problems will be solved. There are improvements.”
Ceramic enterprise completes clean energy transformation
You can receive up to 400,000 yuan in subsidies
According to "Ceramic Information", in order to further increase the pace of optimization and upgrading of the Gao'an ceramics industry, we will accelerate the progress of the centralized supply of clean gas at the Gaoan ceramics base and ensure the steady advancement of clean production in the Gaoan ceramics industry.
On February 19 (the eighth day of the first lunar month), the Gaoan Municipal People's Government Office issued the document "Notice on the Management of Special Reward and Subsidy Funds for Technical Transformation of Clean Gas Centralized Supply Gas Enterprises in the Ceramics Base": Used within the Ceramics Base Jimin Trustworthy Clean Gas Ceramics Manufacturing Enterprises, each enterprise supports a production line that has undergone technical transformation and passed the acceptance inspection for rewards and subsidies (enterprises using natural gas outside the base shall follow the same implementation).
1. Ceramic production enterprises that complete technical transformation and pass the acceptance inspection before 24:00 on March 5, 2021 will receive a one-time reward of 400,000 yuan;
2. Ceramic manufacturers that complete technical transformation and pass the acceptance inspection before 24:00 on March 20, 2021 will receive a one-time reward of 200,000 yuan;
3. Ceramic production enterprises that have not completed technical transformation before 24:00 on March 20, 2021, or have carried out technical transformation but failed to pass the acceptance inspection, will not be rewarded and will be forced to stop production. Production will not resume until the technical transformation is completed and the acceptance is passed.
"Ceramic Information" visited Gao'an ceramic enterprises and learned that the centralized air supply source is very clean, but the key problem is that the cost is too high. According to the owner of a ceramics company in Gao'an, if the fuel cost increase is controlled below 30%, the company can still bear it. However, through last year's gas test evaluation, most companies' fuel costs have increased by 50%-70%. This time, Tao University professors visited For some guidance, if we can reduce costs by 20% and solve a series of quality problems that arise in production, it will still be feasible in the long run. After all, using natural gas is not realistic for the production capacity scale of high-security production areas.
Xi Yongchun said at the exchange meeting that in order to promote the centralized gas supply project safely, steadily and smoothly, the Gao'an Municipal Government specially hired a top expert team from Jingdezhen Ceramics University to provide technical services, with the purpose of promoting clean production in the building ceramics industry. , safely and steadily promote the Jimin Credible Centralized Gas Supply Project, truly solve the company's environmental protection issues, and achieve sustainable development of the company.
On the other hand, in order to support the transformation of clean production kilns of enterprises, the Gao'an Municipal Government has issued documents to provide financial subsidies for the clean transformation of enterprises. Through the introduction of plans, government funding subsidies and technical services from expert teams, enterprises can achieve safe and stable gas use, while further achieving the goals of energy conservation and consumption reduction.
(The article is reproduced from Ceramic Information)
