Survival is unsustainable and "being laid off" becomes inevitable.
According to the analysis of insiders, at present, China's small and medium-sized cement enterprises {TodayHot} are mainly composed of three types: one is a shaft kiln enterprise with backward production technology, high pollution and high energy consumption, and it is a cement enterprise that the state has explicitly eliminated within a time limit. Second, modern shaft kiln enterprises with certain energy conservation and environmental protection. The production capacity of such enterprises is limited, with an annual output of about 300,000 to 500,000 tons. It is an enterprise that can coexist with the new dry method in a certain period of time. Third, a compound enterprise with vertical kiln and new dry kiln production lines is expected to merge with the new dry kiln. It is said that there are only a few such enterprises in China, about 200. {HotTag}
It is understood that China's economic development has entered a period of high-cost growth, and a large number of small and medium-sized cement enterprises are facing the constraints and influences of cost-raising factors closely related to enterprise management (the rising prices of coal, electricity, gas, oil and transportation). Most small and medium-sized cement enterprises are struggling under the pressure of high cost because of their inherent insufficient production capacity.
On the other hand, the continuous implementation of the national policy of restricting the elimination of industries has also given a timetable for the life cycle of small and medium-sized cement enterprises. According to the guiding ideology and adjustment target of the structural adjustment of cement industry put forward in the newly issued Opinions on Accelerating the Structural Adjustment of Cement Industry, by 20 10, the expected output of cement will be10.25 billion tons, of which: the proportion of new dry cement will be increased to 70%, and the bulk cement rate will reach 60%; Accumulated elimination of backward production capacity of 250 million tons. The average production scale of enterprises increased from 200,000 tons in 2005 to about 400,000 tons, and the number of enterprises decreased to about 3,500. As far as more than 5,000 cement enterprises are concerned, it means that 1500 small and medium-sized cement enterprises will be eliminated in the next five years.
What is "unemployment" and how to "re-employment"
It is understood that while vigorously developing new dry methods, small and medium-sized cement enterprises all over the country are also in full swing. In this process, all localities are actively and steadily exploring the market exit mechanism of small and medium-sized cement enterprises.
The first is to dismantle the kiln and transform the industry. It is understood that Jiangshan Shelley Cement Co., Ltd. took the lead in investing in the transformation of the vertical kiln production line and built a 300,000-ton grinding station, which made the enterprise "reborn" in the painful choice. Jiangshan Hushan Group has demolished three mechanical shaft kilns, and the mechanical shaft kilns originally planned to be demolished in 2007 were also demolished ahead of schedule last year. The demolition of mechanical shaft kiln has made the enterprise change rapidly. From June to September last year, the cement output of the Group increased by 54% year-on-year.
It is reported that in the central and eastern regions of China, the government and industry have taken compensation measures for demolition, so that the kiln demolition and transformation can be carried out smoothly.
All localities have also transferred idle factories and land to other industrial projects by attracting investment.
Secondly, increase the development and utilization of environmentally friendly cement products. Some insiders pointed out that the production and development of bricks, blocks, aggregates, mixed materials and concrete needed for urban housing construction is also an important way for small and medium-sized cement enterprises to "re-employment".
The insiders believe that small and medium-sized cement enterprises should try not to move equipment and invest a lot, focusing on the needs of saving resources and protecting the environment. The existing cement plant equipment can be used as environmental protection equipment. Its characteristics are: comprehensive utilization of low-grade raw materials and fuels, production of cement with low energy consumption, and transformation of cement plant into an environmental protection industry, which can not only improve output and quality, reduce energy consumption and cost, but also improve social environmental protection function, create conditions for long-term development, and speed up local economic development.
The insiders suggest that small and medium-sized cement enterprises can increase the output of masonry cement. Active admixture is needed to make bricks with masonry cement. According to analysis, the slag discharge in 2003 was 65.438+0.7 billion tons, and it is expected to reach 200 million tons in recent years. The annual emission of fly ash is about 200 million tons. In order to meet the needs of cement in many aspects, the variety and quantity of existing mixed materials; Can't keep up with the development needs. In addition to developing boiling slag, calcium-enriched liquid slag and natural rock ore, producing active admixture can completely solve this problem. The production of active admixture is a necessary means to replace part of clinker, adjust performance and produce high performance concrete in technology, and it is worth developing in economy. For many vertical kiln factories with high coal consumption, ready to use rotary kiln clinker and lacking active admixtures such as slag, coal gangue and fly ash, they can be used to produce active admixtures or even early strength admixtures. Early strength agent can improve the early strength and greatly increase the dosage of natural admixture. It is very beneficial to the production of masonry cement, reducing the cracking of blocks and concrete and reducing the cost.
Production of cement products (including dry-mixed mortar, block, concrete, etc. ) need to masonry cement, block binder, etc. And the energy consumption is more than 50% lower than that of brick burning, and more than 50% of its components are industrial waste residue. In addition to additives, cement products also need aggregates and ceramsite, especially ceramsite which can be used as lightweight concrete aggregate. There are two kinds of ceramsite production by using the existing equipment of vertical kiln factory: fired and unfired. For areas lacking sand and gravel, if the transportation cost (actually fuel consumption) is higher than the coal consumption of vertical kiln firing, it is worth studying and producing. Because inferior coal and even coal gangue can be calcined in vertical kiln, it actually reduces the consumption of oil. For wet kiln factories along the Yangtze River, high-strength aggregate can be produced from river mud sand containing heavy metals, and combined with the treatment and utilization of river mud sand.
Increase investment in technological transformation and coexist with new dry-process enterprises
At present, the process and technology of most small and medium-sized cement enterprises in China do not meet the requirements of the eleventh five-year plan. To this end, insiders pointed out that in order to survive, qualified small and medium-sized cement enterprises must use 20 practical new technologies to transform their enterprises according to their own actual conditions, strive to meet the requirements of national environmental protection and energy conservation, and strive to coexist with new dry methods in limited time and space, paving the way for enterprise transformation.
It is understood that the vertical kiln discharge grate machine, new ball mill and large diameter vertical kiln of Nanjing Vertical Kiln Research Institute, K-type classifier and big bag dust collector of Jiangsu Kehang Company, multifunctional calorimeter of Zhang Hong Research Institute of China University of Mining and Technology, microcomputer batching control system of Shanghai Fufeng Company, superfine crusher of Tangshan Hongsheng Company and grinding equipment of Wuxi Hushan Energy Saving Company provide technical support for 20 new technologies, which will improve the cement output and quality of small and medium-sized cement enterprises in China.