Machine Translated by Google Electricity Consumption Accounting Measures for Cement Enterprises 1. Definition, Statistical Scope and Calculation Method This method is based on the "Energy Consumption Limit of Cement Unit Product" (GB16780), "Testing and Calculation Method of Electric Energy Efficiency in Cement Production" (GB/T27977), "General Formulated with Portland Cement Standard (GB175). (1) Definition 1. Comprehensive power consumption of clinker Comprehensive electricity consumption per ton of clinker produced during the statistical period, including clinker production The power consumption of each production process and the power consumption of the auxiliary process of clinker production. 2. Comparable clinker comprehensive power consumption The comprehensive power consumption of clinker is corrected to 52.5 according to the 28d compressive strength grade of clinker The comprehensive power consumption obtained after the level and altitude are uniformly corrected. 3. Comprehensive power consumption of cement Comprehensive electricity consumption per ton of cement produced during the statistical period, including cement raw materials The power consumption of each process and the power consumption of auxiliary processes of cement production (including in-plant wiring) losses and consumption of lighting in workshop offices, warehouses, etc.). 4. Comparable cement comprehensive power consumption The comprehensive power consumption of cement is corrected to the ex-factory 28d compressive strength grade of cement. 42.5 Comprehensive power consumption after the unified correction of grade and altitude. (2) Statistical scope 1. Statistical scope of comprehensive power consumption of clinker 1 Machine Translated by Google From the entry of raw materials into the production plant (excluding the mine part), to the water The electricity consumed in the whole clinker production process when the mud clinker leaves the factory, excluding the electricity used for base The electricity consumed by the construction, technological transformation and other projects. Co-processing of solids with cement kilns The electricity consumption of wastes and so on should be counted separately and not included in the comprehensive electricity consumption of clinker Inside. Cement kiln co-processing solid waste refers to the use of cement kiln co-processing of hazardous waste waste, household waste (including waste plastic, waste rubber, waste paper, waste tires, etc.), Municipal and industrial sewage sludge, animal and plant processing waste, contaminated soil, Solid waste such as emergency waste, including liquid waste (wastewater discharged into water bodies except). 2. Statistical scope of comprehensive power consumption of cement From the entry of raw materials into the production plant, to the entire cement production process The electricity consumed in the production process does not include consumption for infrastructure, technological transformation and other projects. power consumption. The electricity consumed by the co-processing of solid waste in cement kilns should be Independent statistics, not included in the comprehensive power consumption of cement. 3. Statistical scope of comprehensive power consumption of cement grinding station From cement clinker, gypsum and mixed materials entering the production plant to cement leaving the factory electricity consumed in the entire cement production process, excluding those used for infrastructure construction, technical renovation, etc. Electricity consumed by the project construction. (3) Calculation method 1. Comparable clinker comprehensive power consumption QKCL ÿ aKQ CL where: 2 Machine Translated by Google QKCL — —Comparable clinker comprehensive electricity consumption, in kilowatt-hours per ton (kW·h/t); QCL——Comprehensive electricity consumption of clinker during the statistical period, the unit is kWh per ton (kW·h/t); a——the correction factor of clinker strength grade; K - Altitude correction factor. 2. Comprehensive power consumption of cement qfmQÿpqpqpq CL cl ÿ mmgg ÿÿ fz QS ÿ PC where: QS——The comprehensive power consumption of cement, in kilowatt-hours per ton (kW·h/t); qfm——The power consumption of cement grinding and packaging process during the statistical period, the unit is thousand Watt-hour (kW h); QCL——Comprehensive electricity consumption of clinker during the statistical period, the unit is kWh per ton (kW·h/t). pcl ——The consumption of clinker during the statistical period, the unit is ton (t); qm——The average power consumption per ton of mixed material pretreatment during the statistical period, the unit is kilowatt-hour per ton (kW·h/t); pm——The consumption of mixed materials during the statistical period, the unit is ton (t); qg ——The average power consumption per ton of gypsum pretreatment during the statistical period, in thousands Watt hours per ton (kW h/t); pg ——The consumption of gypsum during the statistical period, the unit is ton (t); 3 Machine Translated by Google qfz ——Auxiliary electricity consumption to be apportioned during the statistical period, in kilowatt-hours (kW h); PC——The total output of cement during the statistical period, the unit is ton (t). When an enterprise purchases part of the clinker to produce cement, the amount of the purchased clinker in the above formula is QCL Calculated uniformly at 65 kWh per ton; for cement grinding stations, that is, all the When using purchased clinker to produce cement, the amount of purchased clinker in the above formula is QCLCalculated by zero. When the enterprise sells some clinker for takeout, the calculation of the comprehensive electricity time of cement is in the above formula pcl The amount of clinker for takeaway is not included. 3. Comparable cement comprehensive power consumption QKSÿ dKQ S where: QKS — —Comparable cement comprehensive electricity consumption, in kilowatt-hours per ton (kW·h/t). QS——The comprehensive power consumption of cement, in kilowatt-hours per ton (kW·h/t); d - Cement strength grade correction factor; K - Altitude correction factor. 4. Correction factor (1) Correction coefficient of clinker strength grade 52.5 aÿ 4 A where: a——the correction factor of clinker strength grade; 4 Machine Translated by Google A ——The average 28d compressive strength of clinker during the statistical period, according to the "Cement Unit" Calculated according to the provisions of Appendix A of Product Energy Consumption Limit (GB16780), the unit is Megapascal (MPa); 52.5——The average compressive strength of clinker during the statistical period is corrected to 52.5MPa. (2) Altitude correction factor When the altitude of the location of the cement enterprise exceeds 1000m, the altitude shall be corrected. Calculation formula of altitude correction factor PH K ÿ P0 where: K - altitude correction factor; P0 - ambient atmospheric pressure at sea level, 101325 Pa (Pa); PH——The local ambient atmospheric pressure, in Pascals (Pa). (3) Cement strength grade correction factor 42.5 dÿ 4 B where: d - Cement strength grade correction factor; B - weighted average strength of cement during the statistical period, in megapascals (MPa); 42.5—The average strength of cement during the statistical period is revised to 42.5MPa. 2. Requirements for verification work (1) Verification agency The provincial industrial and information technology department is responsible for organizing the power consumption verification of cement enterprises. 5 Machine Translated by Google The energy conservation supervision agency can be entrusted as the verification agency. The verification body is responsible for the nuclear Preparation and implementation of inspections and submission of inspection reports. The verification agency shall follow these measures The specified verification requires that the verification be carried out objectively and impartially. The verification body should have the relevant It can rely on industry professional institutions to provide technical support, carry out training training. (2) Preparation for verification 1. The verification agency should carefully formulate the verification work plan and complete the work as required. make a plan. 2. The verification agency shall notify the enterprise in writing more than 5 days in advance. Checked on site In the process, in principle, the enterprise should be in a normal production state. 3. According to the scale of the enterprise, the verification agency shall appropriately arrange the verification personnel to verify Groups are generally not less than 3 people. (3) Implementation of verification 1. The inspection team shall conduct on-site inspections according to the planned time. 2. The base period for statistics and verification of various data is from January 1 to the end of the previous year. Until December 31st. 3. The verification team should check the relevant original forms on the spot, check the relevant ledgers, Check all levels of power meters/online monitoring systems, and count the output and power consumption, verify the comprehensive power consumption of comparable unit products, draw on-site verification conclusions, and It shall be signed and confirmed by the person in charge of the enterprise and the person in charge of the inspection team. For the statistical base period For enterprises that have completed energy audit and energy management system certification, the verification team may The results serve as an important reference. 6 Machine Translated by Google 4. The verification team fills in the verification materials carefully according to the requirements, and forms a verification report. It mainly includes verification work and verification conclusions. 5. In the absence of corporate complaints or complaints, the verification agency shall The investigation report shall be submitted to the provincial competent department of industry and information technology within 20 days. 6. For those who cannot provide the original vouchers, records and ledger materials required for verification Enterprises that make it impossible to verify, or have fraudulent, falsified data, etc., The highest order of the tiered electricity price shall be implemented. 3. Supervision and inspection The Ministry of Industry and Information Technology, the National Development and Reform Commission, and the National Energy Administration will organize Carry out necessary supervision and spot checks. Attached table: 1. Basic information table of the enterprise 2. Cement enterprise production line situation table 3. Main electrical equipment table 4. Enterprise power consumption statistics table 7 Machine Translated by Google Schedule 1 Enterprise basic information table 1. Basic information of the company Company Name Organization Code post code Address legal representative Legal representative contact number contact department contact contact number fax cell phone E-mail type of enterprise Domestic capital (ÿ state-owned ÿ collective ÿ private) ÿ Sino-foreign joint venture ÿ Hong Kong, Macao and Taiwan ÿ wholly foreign-owned Business registration time Production line 1 production time Production line 2 ... 2. Basic indicators of the enterprise (statistical scope and calculation methods are implemented in accordance with the "Measures for Accounting of Electricity Consumption of Cement Enterprises") Enterprise design capacity of clinker (10,000 tons) Enterprise design capacity of cement (10,000 tons) Enterprise's clinker output in the previous year (ton) Enterprise Clinker sales volume in the previous year (tons) Cement clinker purchased by the company in the previous year (tons) The total annual electricity consumption (kWh) The company's product power consumption index in Comparable clinker comprehensive electricity consumption (kWh/ton) the previous year (weighted average of production lines) Comparable cement comprehensive electricity consumption (kWh/ton) other instructions: Content authenticity statement: 8 Machine Translated by Google Schedule 2 Cement enterprise production line situation table (1) Clinker production line (enterprises without cement products) Scale host equipment day) (ton/model Comparable clinker comprehensive Production Annual design capacity Production in the serial number electricity consumption (kWh/ton clinker) line name (10,000 tons) previous year (tons) 1 Line 1 2 Line 2 … (2) Complete cement production line (including clinker production, cement grinding and packaging) Scale Comparable cement comprehensive Production Host device Annual design capacity Production in the serial number (tons/ electricity consumption (kWh/ton cement) line name model (10,000 tons) previous year (10,000 tons) day) 1 Line 1 2 Line 2 … (3) Cement Grinding Station Mill Comparable cement comprehensive Production Scale Annual design capacity Production in the serial number electricity consumption (kWh/ton cement) line name (tons/day) (10,000 tons) previous year (10,000 tons) equipment model 1 Line 1 2 Line 1 … Note: 1. The abnormal shutdown in the previous year should be explained; 2. If the enterprise has multiple production lines, the evaluation level shall be based on the weighted average of the comparable comprehensive power consumption per unit product of each production line of the enterprise. Elevator price increase standard; 3. For enterprises with both cement clinker production and cement grinding, the price increase standard shall be determined according to the comprehensive power consumption of comparable cement. 9 Machine Translated by Google Schedule 3 Main electrical equipment table Serial number Device name Specification Matching Matching Quantity Annual Run Remarks on the process model motor model motor Time (hours) power (kW) 1 Crushing equipment ... 2 Calcination equipment ... 3 Grinding equipment ... 4 fans ... ÿ… ÿ 10 Machine Translated by Google Schedule 4 Enterprise power consumption statistics table Total output Pcl (tons) Self-produced clinker consumed in cement production (tons) clinker Product volume Outsourcing (tons) Inventory (tons): (end-beginning) Total cement production Pc (tons) Among them, the amount of purchased clinker (tons) Production process and auxiliary production Total power consumption of the enterprise (kWh) Total electricity consumption produced (kWh) Power consumption of raw meal section (kWh) Electricity consumption of firing section (kWh) Auxiliary production electricity consumption (kWh) Co-processing power consumption of cement kiln (kWh) Other electricity consumption (kWh) Power generation capacity of waste heat generator set (kWh) clinker Self-consumption of waste heat generator set (kWh) Power supply of waste heat generator set (kWh) Comprehensive power consumption of clinker Qcl (kWh/ton) Product power consumption Power consumption qfm in cement grinding and packaging process (thousands Average power consumption qm per ton of mixed material pretreatment (kWh/ton) watt hour) Mixed material consumption pm (tons) Average power consumption per ton of gypsum qg (kWh/ton) cement Gypsum consumption pg (ton) Auxiliary production electricity consumption qfz (kWh) to be apportioned Other electricity consumption (kWh) Total electricity consumption for cement production (kWh) Comprehensive cement power consumption Qs (kWh/ton) Qs = (qfm+ Q pcl cl+mmgg qp + qp + q )/P fz C 11 Machine Translated by Google Enterprise Electricity Consumption Statistics (Continued) PH Local ambient atmospheric pressure PH (Pa) Correction factor K ÿ P0 52.5 Average 28d compressive strength A (MPa) of clinker during the statistical period Correction factor 4 aÿ A Correction value 42.5 Cement weighted average strength B (MPa) during the statistical period Correction factor 4 dÿ B Comprehensive proportion of clinker in cement (%) Comparable clinker comprehensive electricity consumption Qkcl (kWh/ton) QKCL ÿ aKQ CL Comparable unit product comprehensive electricity consume Comparable cement comprehensive electricity consumption Qks (kWh/ton) QKSÿ dKQ S 12