The environmental protection requirements of the calcium carbide industry are increasing day by day, and the calcium carbide preheating furnace technology may become an important magic weapon to alleviate the plight of the calcium carbide industry.
Release time:
2020-03-27
In the next few years, the state will gradually impose a tax on carbon dioxide emissions (carbon tax) on industrial enterprises. As a high energy consumption and high pollution industry, calcium carbide will be seriously affected by carbon tax. According to the calculation of the technical department of the calcium carbide industry association, the current calcium carbide industry emits an average of about 3.7 tons of carbon dioxide per ton of calcium carbide produced, and 96.2 million tons of carbon dioxide per 26 million tons of calcium carbide produced in 2014. The carbon tax standard will gradually increase from 10 yuan/ton to 100 yuan/ton, and the carbon tax alone will be as high as 9.6 billion yuan in the future, which will eat up all the profits of the calcium carbide industry.
In 2014, in order to promote the upgrading of the calcium carbide industry structure, reduce energy consumption, and reduce air pollution, the Ministry of Industry and Information Technology issued the "Access Conditions for the calcium carbide industry (2014 Revised Edition)". The main contents are as follows:
The newly-built or expanded calcium carbide production equipment must enter the industrial park and have corresponding downstream industries to support it. The existing calcium carbide production enterprises should enter the industrial park before the end of 2020 and form a close relationship with the downstream industries nearby, so that the pollutants, by-products and residues produced by calcium carbide production can be comprehensively treated and utilized.
The total amount of calcium carbide production capacity is controlled. In principle, new calcium carbide projects are prohibited, new calcium carbide production capacity must be replaced in equal or reduced amounts, and the replaced capacity must be removed before the new capacity is completed. Strengthen technological progress and accelerate the elimination of backward production capacity.
New construction or expansion of calcium carbide production equipment must use advanced closed calcium carbide furnace, a single furnace capacity of not less than 40000 kVA, the total construction capacity (one-time construction) to be greater than 150000 kVA.
When the power consumption of electric furnace with tons of calcium carbide (converted gas output 300 liters/kg) of newly built or expanded calcium carbide production plant is less than or equal to 3200 kW, the comprehensive energy consumption is less than or equal to 1.0 tons 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, the energy consumption quota per unit product of calcium carbide shall be implemented in accordance with the new national standard.
100 percent of the calcium carbide furnace gas must be recycled and comprehensively utilized to encourage the production of high value-added chemical products. From the above conditions, we can see the determination of the state to control the overcapacity of calcium carbide, save energy consumption of calcium carbide and reduce air pollution. The new energy consumption standard and 100 percent recycling of calcium carbide furnace gas have raised the entry threshold for new furnaces and will eliminate a number of technologically backward calcium carbide furnaces, and new processes such as closed calcium carbide furnaces and tail gas recovery technology will become mandatory requirements for new furnace projects in the future.
The calcium carbide preheating furnace technology can effectively alleviate the dilemma of the calcium carbide industry.
The new calcium carbide preheating furnace technology is a supporting technology for the calcium carbide production process independently developed by Shenwu Industrial Furnace. The technology integrates the regenerative radiant tube heating technology and the ring preheating furnace device, and relies on the "new calcium carbide preheating furnace system" developed by Shenwu Industrial Furnace to form a new process for calcium carbide production.
Shenwu calcium carbide preheating furnace technical advantages
Compared with the traditional coal chemical process, the low-cost acetylene, syngas, natural gas, man-made oil, etc. produced by the new calcium carbide acetylene process of Shenwu are used as raw materials to synthesize methanol, gasoline and diesel, olefins, aromatics, natural gas, ethylene glycol and other important energy and chemical products in the downstream of modern coal chemical industry, 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%, water consumption can be reduced by more than 50%, and the comprehensive production cost per unit product can be reduced by about 30%.
At present, the national average price of calcium carbide is about 2460 yuan/ton, while the production cost of calcium carbide under the traditional calcium carbide process is about 2500 yuan/ton, and most calcium carbide enterprises are in a state of meager profit or even loss. Shenwu calcium carbide preheating furnace technology can reduce the cost of calcium carbide by 500 to 800 yuan per ton by reducing the cost of raw materials, reducing electricity consumption and producing high value-added oil and gas products, and significantly improve the overall profit of calcium carbide enterprises. Even if the price of crude oil hovers at a low level in the future, the use of calcium carbide preheating furnace technology of calcium carbide PVC still has a cost advantage over ethylene PVC, and in energy saving, emission reduction, reuse in line with national standards. The promotion of this technology can effectively alleviate the current difficulties faced by calcium carbide enterprises in China.
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After more than three years of meticulous construction, the construction of China Industrial Furnace Industrial Base in Tienan Industrial Park, Goubangzi Economic Development Zone, Beizhen City has achieved remarkable results. A large-scale industrial cluster integrating industrial furnace R & D, production, and parts manufacturing has become an important support for the economic development of Beizhen City. As a leading enterprise in the industrial furnace industry in Beizhen City, Jinzhou Tiansheng Heavy Industry Co., Ltd. has the international leading core technology of industrial furnace production, in Shanxi, Shaanxi, Yunnan and Inner Mongolia Autonomous Region, etc.
More than 300 employees, more than 100 senior professional and technical personnel; nearly 10 million yuan of scientific research funding each year, with a number of independent intellectual property rights; to build electric furnace "aircraft carrier", striving for international first-class, products are exported to Kazakhstan, Iran and other countries; the industry's only unit with civil and steel structure construction capacity ...... into the Goubangzi Provincial Economic Development Zone, the provincial May 1 labor award unit Jinzhou Tiansheng Heavy Industry Co, discuss with the person in charge of the enterprise, communicate with ordinary employees, and feel the strong innovation atmosphere of the enterprise. Here, scientific and technological innovation has become the consensus of everyone and the driving force for the development of enterprises.
In the next few years, the state will gradually impose a tax on carbon dioxide emissions (carbon tax) on industrial enterprises. As a high energy consumption and high pollution industry, calcium carbide will be seriously affected by carbon tax. According to the calculation of the technical department of the calcium carbide industry association, the current calcium carbide industry emits an average of about 3.7 tons of carbon dioxide per ton of calcium carbide produced, and 96.2 million tons of carbon dioxide per 26 million tons of calcium carbide produced in 2014. The carbon tax standard will gradually increase from 10 yuan/ton to 100 yuan/ton, and the carbon tax alone will be as high as 9.6 billion yuan in the future, which will eat up all the profits of the calcium carbide industry. In 2014, in order to promote the upgrading of the calcium carbide industry structure, reduce energy
Shaanxi Coal Shenmu Coal Chemical Energy Company held a special meeting to earnestly learn the lessons of the space flash explosion accident that occurred when the No. 5 calcium carbide furnace of Xinjiang Yihua Chemical Co., Ltd., Changji Prefecture, Xinjiang Autonomous Region, handled the material surface, and paid close attention to the safe production after the festival. At the meeting, the safety production and environmental protection department of Shaanxi coal Shenmu coal chemical energy company first reported the cause of the accident, the process and the serious consequences of 2 deaths, 3 serious injuries and 5 minor injuries on the spot. All branches were required to hold special meetings to learn from the accident experience and lessons. We must always tighten the string of safety production, be highly vigilant, draw inferences from one instance, grasp the weak links, and further carry out the safety production inspection, effectively enhance the awareness of the red line, resolutely curb the occurrence of accidents, to protect the safety of employees. The first is to earnestly organize and study the accident report, and further learn the lessons of the accident. In particular, the electric branch should use the time of the pre-shift meeting to organize all employees to study the accident report, raise awareness, recognize the situation, perform their duties, and do a good job in the current safety production. The second is to carry out a solid inspection of production safety. All branches should attach great importance to safety inspection, strengthen organization and leadership, and hold special meetings to study the work of safety production inspection. On the basis of carrying out safety inspection, they should mobilize, deploy and arrange again. The party and government leaders of each branch should personally lead the team, and the management personnel of each department, workshop and team should go deep into the site to push the safety production inspection work in depth. The key point is that the safety and environment department of each branch and the safety and environmental protection department of the company should do a good job in safety production inspection, supervision and management. In particular, the electric branch should carefully check every link of the production process and carry out risk analysis activities in real time. The hidden dangers found out shall be rectified immediately, and the equipment shall not be allowed to operate with diseases. The third is to strengthen the rectification of hidden dangers. Each branch effectively strengthens the organization and leadership of the rectification of hidden dangers of accidents, and strictly follows the requirements of the "five implementations" of the rectification of hidden dangers of accidents, clarifies responsibilities, guarantees funds, formulates plans, implements measures, and rectifies within a time limit. It is strictly prohibited 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 of desulfurization construction and commissioning. During the cross-operation period of phase I desulfurization of Jieneng Power Generation Branch into construction and trial production, the system of main responsible persons and professional and technical personnel following and taking shifts must be strictly implemented, changes in technology and equipment operation must be kept abreast of, abnormal situations found should be handled in time, and forced driving is strictly prohibited. The engineering department, together with the supervision company and Jiangnan environmental protection, is responsible for the safety of the installation of 1# desulfurization tower, and the trial production safety of 2# desulfurization tower is responsible for by the clean energy power generation branch company and the company's safety production and environmental protection department. Five is to strengthen the special period of employee safety education. 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 fail to confirm their work safely, and the quality of work cannot be guaranteed, which may lead to accidents. Occurrence. In addition, just after the Spring Festival holiday, there are some human contacts between employees and relatives and friends. Some employees take up their posts after drinking, are tired or meet with relatives and friends, which brings about ideological fluctuations and affects their attention at work. At the same time, every year after the Spring Festival, there is a frequent flow of personnel, 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, and employees should be reminded to do a good job of taking care of themselves after the holiday, so as to prevent employees from being careless after the holiday and return to normal work as soon as possible. Safe production has only a starting point and no end. At present, cadres at all levels of Shaanxi coal Shenmu coal chemical energy, in combination with the actual situation, earnestly study the spirit of the group company and Shenmu coal chemical industry company's workers' congress, 2017 work meeting and safety work meeting, strictly implement the main responsibility of the enterprise, do not discount, leave no dead corner, do not go through the motions, highlight the safe and stable operation of the device, strive to achieve production and efficiency, improve quality and efficiency, so as to achieve real business results, and ensure the smooth completion of all tasks throughout the year.
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