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  • 锦州天晟重工
  • 锦州天晟重工
  • 锦州天晟重工

Add:Tienan Industrial Park, Goubangzi, Jinzhou City, Liaoning Province
Tel:(86)0416-6241777   6241888
Fax:(86)0416-6688600
Postcode:121308
E-mail:
jztszg@163.com

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  • The environmental protection requirements of the calcium carbide industry are increasing, and calcium carbide preheating furnace technology may become an important magic weapon to alleviate the predicament of the calcium carbide industry

    2020-03-27

    In the next few years, the state will gradually impose a carbon dioxide emission tax (carbon tax) on industrial enterprises. Calcium carbide, as a high energy consumption and high pollution industry, will be severely affected by carbon taxes. According to calculations calculated by the Technology Department of the Calcium Carbide Industry Association, the current average carbon dioxide emissions per ton of calcium carbide produced in the calcium carbide industry is about 3.7 tons. In 2014, the 26 million tons of calcium carbide produced 96.2 million tons of carbon dioxide. The carbon tax standard will be gradually increased from 10 yuan/ton to 100 yuan/ton, and the future carbon tax alone will be as high as 9.6 billion yuan, which will swallow all the profits of the calcium carbide industry.    In 2014, in order to promote the upgrading of the calcium carbide industry, reduce energy consumption and reduce air pollution, the Ministry of Industry and Information Technology issued the "Access Conditions for Calcium Carbide Industry (2014 Revised Edition)". The main contents are as follows: Newly built or expanded calcium carbide production equipment must enter the industrial park and have corresponding downstream industries to support it; existing calcium carbide production enterprises must enter the industrial park by the end of 2020, and form a close relationship with the nearby downstream industries to enable calcium carbide production The generated pollutants, by-products, residues, etc. can be comprehensively treated and utilized.   Implement total control of calcium carbide production capacity. In principle, it is forbidden to build new calcium carbide projects. New calcium carbide production capacity must be replaced by equal or reduced quantities, and the replaced capacity must be dismantled before the new capacity is built. Strengthen technological progress and accelerate the elimination of backward production capacity.    Newly built or rebuilt or expanded calcium carbide production equipment must use advanced closed calcium carbide furnaces, the capacity of a single furnace is not less than 40,000 kVA, and the total construction capacity (built at one time) must be greater than 150,000 kVA.   To build or renovate and expand the calcium carbide production equipment per ton of calcium carbide (300 liters/kg equivalent) electric furnace power consumption ≤ 3200 kWh, comprehensive energy consumption ≤ 1.0 ton of standard coal. The existing calcium carbide production equipment must meet the above standards by the end of 2015. After the implementation of the new national standard "Energy Consumption Quota per Product of Calcium Carbide", it shall be implemented in accordance with the new national standard.    Calcium carbide furnace gas must be 100% recycled and comprehensively utilized to encourage use in the production of high value-added chemical products. From the above conditions, we can see the country's determination to control the overcapacity of calcium carbide, save energy consumption of calcium carbide, and reduce air pollution. New energy consumption standards and regulations such as 100% recycling of calcium carbide furnace gas have raised the entry barrier for new furnaces, and will eliminate a batch of technologically backward calcium carbide furnaces. In the future, new technologies such as closed calcium carbide furnaces and tail gas recovery technologies will become The rigid requirements of the new furnace project.   The calcium carbide preheating furnace technology can effectively alleviate the predicament of the calcium carbide industry The new calcium carbide preheating furnace technology is a supporting technology for calcium carbide production independently developed by Shenwu Industrial Furnace. This technology integrates regenerative radiant tube heating technology and annular preheating furnace device. It is based on the "new calcium carbide preheating" developed by Shenwu Industrial Furnace. Furnace system" forms a new process for calcium carbide production.    Shenwu calcium carbide preheating furnace technology advantages Compared with the traditional coal chemical process, low-cost acetylene, synthesis gas, natural gas, artificial petroleum, etc. produced by the Shenwu new calcium carbide acetylene process are used as raw materials to synthesize methanol, gasoline and diesel, olefins, aromatics, and For important energy chemical products such as natural gas and ethylene glycol, the investment per unit product can be reduced by more than 70%, energy conversion efficiency can be increased by more than 20% to 30%, carbon dioxide emissions can be reduced by more than 20%, and water consumption by more than 50%. The overall production cost of the company can be reduced by about 30%.    At present, the average price of calcium carbide in the country is about 2,460 yuan/ton, while the production cost of calcium carbide under the traditional calcium carbide process is ab

  • Lessons from the flash explosion accident of calcium carbide furnace, pay close attention to post-holiday safety production-china coal (coal mine) news network

    2020-03-27

    Shaanxi Coal Shenmu Coal Chemical Energy Company held a special meeting to earnestly learn from the lessons of the space flash explosion accident in the calcium carbide furnace No. 5 of the calcium carbide division of Xinjiang Yihua Chemical Co., Ltd., Changji Prefecture, Xinjiang Autonomous Region, and pay close attention to safety after the holiday. To At the meeting, the Safety Production and Environmental Protection Department of Shaanxi Coal and Shenmu Coal Chemical Energy Company first notified the cause and course of the accident and the serious consequences that caused 2 deaths, 3 serious injuries, and 5 minor injuries on the spot, and required all branches to hold special meetings. To earnestly learn from accident experience and lessons, we must always tighten the string of safety production, be highly vigilant, learn from one another, seize the weak links, further carry out safety production inspections, effectively enhance the red line awareness, resolutely curb accidents, and protect the lives of employees . One is to earnestly organize the study of accident notifications to further learn the lessons of accidents. In particular, the electrochemical branch should use the time of the pre-class meeting to organize all employees to study accident notifications, raise awareness, recognize the situation, perform due diligence, and earnestly do the current safety production work. The second is to carry out a solid production safety inspection. Each branch company should attach great importance to safety inspections, strengthen organization and leadership, and hold special meetings to study safety production inspections. On the basis of carrying out safety inspections, mobilize, deploy and arrange again. The party and government leaders of each branch company must personally lead the team, and the management personnel of each department, workshop, team will go to the site to push the safety production inspection work in depth. The focus is on the safety and environmental protection department of each branch company and the company's production safety and environmental protection department to do a good job of safety production Inspection, supervision and management. In particular, the Electrochemical Branch must carefully inspect every link of the production process and carry out risk analysis activities in real time. The hidden dangers identified must be rectified immediately, and the equipment will never be allowed to operate with diseases. The third is to strengthen the rectification of hidden dangers. Each branch company earnestly strengthened the organization and leadership of the rectification of hidden accidents, strictly in accordance with the requirements of the "five implementation" of rectification of hidden accidents, clarified responsibilities, guaranteed funds, formulated plans, implemented measures, and rectified within a specified time. It is strictly forbidden to organize production before the rectification of major hidden dangers is completed. The fourth is to further strengthen the safety management of the first-phase desulfurization construction and trial run. Clean Energy Power Generation Branch's first phase of desulfurization enters the construction and trial production period. It must strictly implement the main person in charge and professional and technical personnel follow-up and shift system, keep abreast of process changes and equipment operation conditions, and deal with abnormal situations in time. Drive. The safety of the installation of the 1# desulfurization tower is the responsibility of the engineering department in conjunction with the supervision company and Jiangnan Environmental Protection. The trial production safety of the desulfurization 2# tower is the responsibility of the clean energy power generation branch and the company’s production and environmental protection department. The fifth is to strengthen employee safety education during special periods. Although the season has entered spring, the weather is still cold, which has a certain impact on personnel operations. In order to reduce the working time in cold weather, some employees often confirm that the work is not in place and the quality of work cannot be guaranteed, which may lead to accidents. happened. In addition, when the Spring Festival holiday was just taken, there are some friendships between employees and relatives and friends. Some employees may go to work after drinking, get tired, or get together with relatives and friends to bring about ideological fluctuations, which affects their attention at work. At the same time, every year after the Spring Festival, there is a period of frequent personnel turnover, which has a certain impact on the attention of personnel at work. Therefore, in addition to strengthening daily safety production education, more attention should be paid to safety production training for returning to work after the holiday, promptly reminding employees to take care of

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