Text/Hong Xiaochun
Recently, the "Third Brother" who has stopped work and production next door due to the epidemic has made many jokes about the ecological environment. India's Central Pollution Control Board said that PM10 air pollution levels in Delhi dropped by 44% on the first day of the "lockdown"; a few weeks after the "lockdown", the clarity of the Ganges River water changed from "unsuitable for bathing" to "drinkable" ; Due to reduced air pollution, residents of northern India were able to see the Himalayas (a full 200 kilometers away) for the first time in 30 years. In this regard, everyone has to admire that India is really a magical country, and environmental improvement relies entirely on "self-healing".
▲ Residents of northern India photographed the landscape of the Himalayas
On the other hand, the domestic situation is not so "optimistic". Over the years, the rectification of industrial pollution has relied entirely on the diligence and dedication of the environmental protection departments. The issue of "coal-to-gas" in the construction and ceramics industry alone has caused a stir. . No, at the beginning of the year, various places are rushing to launch plans/plans for 2020, and environmental protection policies for the production of ceramics are overwhelming. Among them, the ceramics production areas headed by Guangdong have sent out a signal: It is imperative to eliminate backward kilns.
Qingyuan, Guangdong: With both soft and hard measures, the great cause of "coal-to-gas" will be completed in 2020
This year Qingyuan continues to advance the deployment of the battle against pollution, and has also issued an ultimatum to local ceramic enterprises: fully implement the "coal-to-gas" transition this year. ThatIt is mentioned in the report that the construction of denitrification facilities for all ceramic production lines must be completed by the end of June to ensure that the nitrogen oxide emission concentration is not higher than 100mg/m³ and the sulfur dioxide emission concentration is not higher than 30mg/m³; by the end of September, the scope of the no-burning zone will be eliminated All coal-fired facilities in the country will be resolutely eliminated and withdrawn from the ceramic enterprises that have not been modified or "modified without use". According to statistics, the current progress of "coal-to-gas" conversion of Qingyuan City's ceramics production is close to 90%. Of the existing 169 ceramics production lines, more than 19 have been dismantled. or shut down.
On April 7, the Qingyuan City Qingxin District People’s Government Office successively issued “reward” notices, which mentioned that in the Guangzhou Huadu (Qingxin) Industrial Transfer Industrial Park, Ceramic enterprises that use natural gas to resume production before April 15 and dismantle gas generating stations before September 1 will be given a one-time reward of 500,000 yuan. Not to mention how much investment is required for equipment modification, how long can this 500,000 subsidy be used for natural gas for a production line? The local government's implementation of this strategy of both carrot and stick is probably just to allow the "coal-to-gas" project to end "honestly" at the last hurdle.
Zhaoqing, Guangdong: “One enterprise, one policy”, “tax reduction and fee reduction”, “refund for persuading withdrawal” Millions"
The emissions of sulfur dioxide, nitrogen oxides, particulate matter and other pollutants produced by building ceramics account for more than 40% of Zhaoqing's industrial emissions. On March 2, Zhaoqing, Guangdong issued the "Order on the City's Decisive Fight to Win the Battle of Pollution Prevention and Control", deciding to fight a decisive battle to prevent and control pollution from March 2 to December 31, 2020. We will improve the digital management and control of VOCs emitting enterprises, and continue to carry out the "one enterprise, one policy" comprehensive rectification of key regulated enterprises. For ceramic enterprises facing pressures such as high costs and shortage of funds, highThe taxation bureaus in key districts have issued tax reduction and fee reduction policies such as "six taxes and two fees" and opened a "green special window" for environmental protection tax declaration. Among them, the Samit Ceramics production line has all completed the "coal-to-gas" equipment transformation, and currently enjoys an environmental protection tax exemption of more than 500,000 yuan.
In 2020, Zhaoqing required ceramic companies to switch to natural gas before starting construction. Before the end of 2020, the issuance of pollution discharge permits for all stationary pollution sources will be completed. According to statistics in 2018, Zhaoqing City has 65 ceramic companies and 268 production lines (partially suspended or bankrupt). Currently, there are only 32 normally operating ceramic companies. The main reason is that the local government adopts incentive measures to reward the exit of ceramic companies, and those who voluntarily withdraw before the end of 2020 Each production line of ceramic enterprises is subsidized by the city with 1 million yuan. It can be seen that in order to win this tough battle of pollution prevention and control, Zhaoqing has not only worked hard but also spent a lot of money. I hope this sincerity will not be wrong.
▲Huanglong Environmental Protection’s waste gas solution exhibited at the 2019 Guangzhou Ceramics Industry Exhibition
Guangdong Enping: Assess social stability risks to avoid wage arrears by ceramic companies
On February 25, Enping Vice Mayor Cen Anlin convened a working meeting with heads of Enping Municipal Public Security Bureau, Enping Municipal Transportation Bureau, Municipal Ecological Environment Bureau Enping Branch, Shahu Town Government, Hengpi Town Government and other departments to conduct special research Coal-to-gas conversion in the ceramic industry. The meeting emphasized that this year we should accelerate the "coal-to-gas" work to ensure that the 2020 air quality improvement goals are achieved.
The meeting required that all relevant departments must improve their ideological understanding, pay attention to the "coal-to-gas" work, and ensure that the task is completed on schedule; at the same time, they must promptly transform the ventilation pipe network in the factory area, pay attention to the safety of natural gas transportation, and determine the in-plant selection of natural gas tanks as soon as possible. sites and gas suppliers;The most important point is that the meeting required that the "coal-to-gas" work must conduct a social stability risk assessment in advance, and understand the ceramic enterprisesThe minimum amount of work materials, wages, etc. can be avoided to avoid problems such as wage arrears. Watching it day and night, the problem of unpaid wages and unemployment caused by the collapse of ceramic companies is the most difficult to prevent.
Jiangmen, Guangdong: 23 ceramic companies and 83 furnaces need C to B
Recently, the Ecological Environment Bureau of Jiangmen City, Guangdong Province issued the "Jiangmen City Industrial Furnace Air Pollution Comprehensive Control Plan", proposing to fully complete the clean energy transformation of the building ceramics production line by the end of September 2020. Before the end of 2020, the city's industrial furnaces, including ceramic production, need to complete the transformation from Class C to Class B.
According to the "Jiangmen City Industrial Furnace and Kiln Graded Control List", there are 86 kilns from 24 ceramic companies in Jiangmen City on the graded control list. Among them, only 3 kilns at the Enping Jiajun Ceramics Production Base are Class B. < span style="color:#008080">The remaining 23 ceramic companies and 83 furnaces are all Grade C, and the compliance rate of ceramic production furnaces is only 3.4%. It can be foreseen that Jiangmen ceramics enterprises have a long way to go in renovating their furnaces this year. According to statistics, the affected production capacity in this production area reaches 299 million square meters.
Jincheng, Shanxi: Yangcheng Ceramics Park was intensively renovated, and the facilities of 21 ceramic companies were renovated< /span>
On March 18, the Office of the People's Government of Jincheng City, Shanxi Province issued the "2020 Decisive Plan for Winning the Blue Sky Defense Battle in Jincheng City", which mentioned that Before the end of June, Yangcheng 21 architectural ceramic enterprises in the county have canceled desulfurization and denitrification flue gas bypasses or set up backup desulfurization and denitrification facilities; before the end of September, the centralized rectification of industrial enterprises in the Yangcheng County Architectural Ceramics Park will be completed; Before the end of October , exiting enterprises that fail to meet the control standards of the Ministry of Ecology and Environment's "Guiding Opinions on Strengthening Response to Heavy Pollution Weather and Consolidating Emergency Emission Reduction Measures" in urban built-up areas.
▲The double-layer kiln in the high-speed rail era exhibited by Zhongpeng Thermal Energy at the 2019 Guangzhou Ceramic Industry Exhibition
Shanxi Shuozhou: All fuel-based gas generators with a furnace diameter of less than 3 meters have been eliminated< /span>
Recently, Shanxi Shuozhou released the "2020 Decisive Plan for Shuozhou City to Win the Blue Sky Defense War", which mentioned that in accordance with the principle of "eliminating a batch, replacing a batch, and regulating a batch", the focus will be on roasting (calcining) furnaces (kiln), drying furnace (kiln), gas generator furnace, submerged arc furnace, refining furnace, aluminum electrolytic cell, calcium carbide furnace, induction furnace, electric arc furnace, tunnel kiln, rotary kiln and other furnaces for comprehensive management. Before the end of June, complete the replacement and transformation of existing industrial furnaces using coal and other fuels with clean and low-carbon fuels, technology and equipment, and use coal gas as fuel with a furnace diameter of less than 3 meters. All generators will be eliminated; before the end of March, the assessment of the comprehensive treatment status of VOCs emissions in key industries, including construction and ceramics, will be completed, and targeted rectification will be completed by the end of June.
Shenyang and Chaoyang, Liaoning: Fuel gas generators with furnace diameters below 3 meters have been withdrawn< /span>
On February 21, the Liaoning Provincial Department of Ecology and Environment jointly issued the "Implementation Plan for Comprehensive Control of Air Pollution from Industrial Kilns in Liaoning Province" with five departments. The plan mentions that by the end of 2020, a comprehensive management system for the air pollution control of industrial furnaces will be basically established; at the same time, comprehensive rectification of industrial parks and industrial clusters (Shenyang, Chaoyang) involving ceramics and other industrial furnaces will be carried out based on the production and emission of air pollutants and furnaces. Number of kilns. Accelerate the withdrawal of gas generators in key industries such as ceramics. Among them, fuel gas generators with a furnace diameter of less than 3 meters will be withdrawn in an orderly manner. To ensure that industrial furnace emissions fully meet standards by the end of 2020.
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The above is the green production policy for the ceramics industry launched by some regions this year compiled by the author. Nine out of ten are related to the renovation and elimination of kilns in the ceramics production line. Regarding the emissions of flue gas (sulfur dioxide, nitrogen oxides) and other air pollution particles (chloride, fluoride, lead, cadmium and nickel compounds) produced during the operation of ceramic industrial kilns, Switching to clean energy is indeed an effective treatment method, but it does not mean that eliminating outdated kilns will complete the pollution prevention and control work in one fell swoop. In the production process, enterprises also need to achieve true energy conservation and environmental protection by controlling the content of raw material components, optimizing the firing system, recycling exhaust heat energy and other aspects.
For current production lines where some roller kilns still use gas generators and spray drying tower hot blast furnaces use coal-water slurry, experts suggest that before transitioning to the use of clean energy, preventive technologies such as fuel-based high-temperature sulfur fixation and low-nitrogen combustion can be used, and SNCR denitrification, wet desulfurization (lime + gypsum/sodium-alkali method), combined with flue gas bag dust removal and other treatment solutions, achieve pollutant emission standards.
Green production is the guarantee of people's health and safety, and the transformation and upgrading of the manufacturing industry is the driving force for national rejuvenation, which requires the attention of all parties and industries. As a ceramics manufacturer, we should look for “curative prescriptions” and never resort to shutdowns to complete environmental rectification. That would be too much like the approach of the “third brother” next door.
