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Reflections on the principles of revision of the cement industry policy system


Release time:

Sep 15,2014

In May of this year, the leading comrades of the central government emphasized during an inspection in Henan that my country's development is still in a period of important strategic opportunities. We must increase our confidence, proceed from the current stage characteristics of my country's economic development, adapt to the new normal, and maintain a normal strategic mentality and tactics. Aggressive. The "new normal" refers to the slow and painful process of economic recovery after the crisis, which is used in the macroeconomic field. Under the current situation, how should the cement industry create a "new state" and adapt to the new needs of the "new normal" economic and social development? Since the "Twelfth Five-Year Plan", China's cement industry has developed rapidly and made great achievements, but it is still facing

In May of this year, the leading comrades of the central government emphasized during an inspection in Henan that my country's development is still in a period of important strategic opportunities. We must increase our confidence, proceed from the current stage characteristics of my country's economic development, adapt to the new normal, and maintain a normal strategic mentality and tactics. Aggressive.

The "new normal" refers to the slow and painful process of economic recovery after the crisis, which is used in the macroeconomic field. Under the current situation, how should the cement industry create a "new state" and adapt to the new needs of the "new normal" economic and social development?

Since the "Twelfth Five-Year Plan", China's cement industry has developed rapidly and made great achievements, but it still faces many new problems and new issues that need to be resolved urgently. The author thinks about the current cement industry policy revision work, and discusses with the industry to further clarify the development ideas and promote the sustainable and healthy development of the cement industry.

The basic principles of industrial policy (revision).

China's cement production technology, equipment and physical quality have reached the international advanced level. However, the scientific and systematic nature of the current industrial policy and evaluation system needs to be improved.

The outstanding problems are: the equipment specification, type, scale and production process are used as the precondition or even the only condition for evaluating the advanced and elimination of cement enterprises; the coherence and operability of industrial policies are not strong, and some policies require that there are contradictions and even serious opposition between relevant government departments. Such as a year two departments on the same equipment specifications are diametrically opposed. For example, the relevant norms and industrial policy specific requirements or specify the type of equipment. Such as the use of electric dust collection of its dust emission concentration can fully meet the standards, and artificial restrictions are not allowed to use, obviously unfair and scientific principles. Conch cement encountered this problem and strongly called for a solution as soon as possible. The company has long used electricity to collect dust. After testing by the environmental protection department, its dust emission concentration is only about 10 mg per standard cubic meter, which is far lower than the national emission standard of 30 mg. Due to the regulations that only cloth bags can be used for dust collection, the promotion and implementation of the cement kiln collaborative disposal of municipal solid waste project is seriously restricted, which directly causes all related projects to be put on hold.

Scientific, objective and operational industrial technology policies should be formulated from the aspects of energy consumption, environmental protection (including emission reduction), quality and safety. The same is true for the formulation and revision of international standards, technical regulations and WTO rules and the practice of science and technology at home and abroad. It is against the law of science to determine whether a certain process and specification is advanced and backward, which will lead to unfair competition and even violate relevant laws. The survival of the fittest can only be determined by the market rather than by the size, type and size of equipment. For example, the total population of many counties and cities in Hunan Province is only about 200000. Due to the underdeveloped economy, the annual cement consumption is about 200000 tons. A grinding enterprise Ф a 2.6m tube mill with a high-efficiency powder separator, and its comparable electricity energy consumption per ton of cement fully meets the standard limit requirements, which is a more economical and practical reasonable allocation. However, the policy requires that a mill larger than 3m Ф be replaced and a roller press be added. Generally, a Ф 3.2m mill is often selected. On the contrary, the overall analysis increases energy consumption and emissions. The steel and processing required for the replacement mill and roller press will consume energy. Due to the low operation rate, the actual production will increase power consumption and other costs. After the transformation, the energy saving is far less than the overall new energy consumption and input cost.

The proportion of backward vertical kilns and Ф mills below 3m is very low. Through market mechanism, quality, environmental protection and other regulatory measures, the survival of the fittest can be realized, and backward production capacity such as inefficient dry production lines below 1500 tons per day will be eliminated without excessive worry. If a cement mill is to be transformed, it must be approved by the provincial people's government or the national investment management department, not to mention that it is difficult to operate or even inoperable, and it is not consistent with the central government's policies.

Many experts point out that some improper government regulation and intervention have led to market distortion and increased risks, and then administrative means are used to govern, resulting in more distortion of the market mechanism. Some functions of the government and relevant departments are unclear and their roles are not accurate. The government should reduce or even withdraw from the practice of direct allocation of resources, give full play to the role of the market, strengthen the function of market supervision, and prevent abuse of market power and encroachment on the interests of the weak. Recently, Dong Mingzhu, chairman of Gree Electric Appliances, called out: Gree Electric Appliances does not need the support of industrial policies, but only needs the government to improve and maintain a fair competition environment. With the establishment and improvement of China's legal system and regulatory system, to adjust the industrial structure and even the product structure, we must believe in and strengthen the market's correction and adjustment, repair function and the decisive role of the market. The market and users are very smart. Users will eventually choose products or process equipment with high quality, credit, good service and high cost performance. In order to ensure their own interests, users will focus on the acceptance of quality, environmental protection, energy consumption and other indicators.

Scientific and standardized statistics of cement production capacity, output and overcapacity

How to scientifically and standardize the statistics and division of clinker and cement production capacity and production and overcapacity is still very chaotic at present, there are all kinds of chaos, which is not standardized and unified. For example, some places (provinces, cities and counties) or departments report the aggregate cement grinding capacity as local cement capacity. The author received a telephone call. What is very puzzling is that when the cement production capacity is summarized and counted, after the vertical kiln factory is changed to a grinding station, the production capacity of the raw mill that has not been dismantled and the mill that is used to prepare mixed powder or mineral powder will be summarized and reported as the cement production capacity. A comprehensive department leader asked vividly and profoundly: where can cement be without clinker?

From the actual situation analysis, even the new dry production line clinker and cement capacity calculation method is still not clear and unified. For example, when calculating the annual clinker production capacity or design capacity of the 5000-ton line per day, some use 5000 times the number of days of operation to 300 or 310 or 320, and many times the 1.2 or 1.1 factor. The reason is that the new dry line reaches production and has strong excess capacity. As for the calculation and summary of cement production capacity in various places, the focus is on the determination of how much cement is produced by 1 ton of clinker, I .e. the conversion factor or coefficient, which varies greatly from 1.3 to 2.0. There is a general department director to write materials, from the Internet found that 1 ton of clinker can produce 3 tons of cement! The author suggests that according to the following caliber or method of statistics, now take a province as an example. The operation time is calculated by 310 days but no longer by 1.1 or 1.2 overproduction coefficient. The early 2500-ton clinker production line is calculated by the design capacity of 2500 tons per day, and the later (near) 2500 line is calculated by 3000 tons per day. The total production capacity of new dry clinker in the province is 71.57 million tons/year. 52.5, 42.5 and 32.5 cement in the province account for 2.0, 33.0 and 65.0 respectively. The clinker consumption of 1 ton of 52.5 and 42.5 cement in dry line is 0.95 and 0.80 tons respectively. The average clinker consumption of 1 ton of 32.5 cement is 0.63 (in fact, enterprises with high quality positioning or limited by mixed materials such as Huaxin and Conch are about 0.7), the average clinker consumption of one ton of 32.5 cement in the grinding station is calculated as 0.55 (according to the mixed material resources and other conditions in the province, if the average clinker consumption is less than 0.55, the 28-day strength is likely to be not rich or substandard). Among them, the 32.5 cement produced by the grinding station accounts for about 20% according to the high statistics, and the 32.5 produced by the dry process plant accounts for about 80%, so the average clinker consumption of one ton of 32.5 cement is about 0.614. Then the average consumption of clinker for one ton of cement in the province is 0.614 × 0.65+0.80 × 0.33+0.95 × 0.02=0.6821, I .e. one ton of clinker produces 1.466 tons of cement on average. Based on the average proportion of each label, the aggregate converted cement production capacity is 7157 × 1.466=104.92 million tons/year, and the comparable cement production capacity is 89.46 million tons/year, which is converted into 42.5 cement production capacity, taking into account the following conversion factors.

Cement overcapacity is the overcapacity of clinker, which has no connection with the current product standards and the actual share of the varieties, grades and varieties. In the case of a certain clinker output or overcapacity, the proportion of cement at all levels of grinding processing is determined by market demand. Besides, cement is a semi-finished product. The commercial mixing station and the construction party use 42.5 cement to prepare concrete below C40 (inclusive) and are mixed with a large amount of fly ash, mineral powder, limestone powder and other admixtures. For example, C30 concrete with the largest amount of 42.5 cement preparation is generally mixed with about 140kg of admixtures to reduce costs, improve concrete construction performance and meet engineering quality requirements. Therefore, the use of cement production capacity or grinding capacity as a statistical indicator of cement capacity is not standardized, unscientific.

It is suggested that the relevant departments should improve and formulate a unified statistical caliber and calculation method of relevant indicators or data as soon as possible. The production capacity of cement enterprises is calculated according to the comprehensive clinker production capacity of the kiln system. In fact, many departments and cement enterprises have already reported their production capacity according to this statistics. The corrected value is introduced into statistics of cement output and summarized according to comparable output statistics. It is suggested that the corrected value of 42.5 general cement should be 1,52.5 general cement should be 1.15,32.5 cement should be 0.85 (Huaxin Group currently evaluates the cement output of each member enterprise according to the above corrected value) or 0.80,42.5 the corrected value of medium and low heat Portland cement should be 1.2 and 1.30 respectively, and the corrected value of 32.5 and 42.5 white Portland cement should be 1.6 and 1.75 respectively, sulfur (iron) aluminate cement is 2.0, and other special cement varieties are calculated to determine the correction value respectively. The revised value of cement output was used in some fields as early as the late 1980 s by the former State Building Materials Administration.