In May 2005, Sanmenxia Aluminum Company started the construction of the first 400,000-ton alumina production line, and in March 2006, it was put into operation. At present, it has reached a production capacity of 2.5 million tons/year, and its products are exported to Qinghai, Gansu, Ningxia, Shaanxi, Shanxi, Inner Mongolia and other places in addition to local sales in Henan. Production and operation status: At present, Sanmenxia Aluminum has formed 2.5 million tons / year alumina production capacity, the total investment of about 7 billion yuan, than the same industry and the same size of the enterprise construction cost is reduced by about 1 billion yuan, to solve the local employment of more than 1,300 people. 2009, the production of 1.54 million tons of alumina, the output value of 2.4 billion yuan, sales income of 3 billion yuan, profit of 600 million yuan, profits and taxes of 620 million yuan. 2010, from 1 to 5 months, the company *** counted the production capacity of the company. From January to May, 2010, the company **** the production of 920,000 tons of alumina, sales of 940,000 tons, sales revenue of 2.243 billion yuan, profit of 592 million yuan, profits and taxes of 763 million yuan. Production and operation advantages: (a) investment province:
In terms of construction investment, the company adheres to the "both good, fast, but also save" investment philosophy. This is mainly due to our company dared to take the lead in the use of domestic equipment, a breakthrough in the long history of key equipment to be imported from abroad, so that both powerful support for the development of national industry, but also saves the equipment manufacturing cycle for the construction of the project has won valuable time. The company's domestic equipment utilization rate of more than 90%, compared with the same industry enterprises of the same size, saving investment costs of about 70%. The short construction cycle and low investment in the project have laid a good foundation for our company to improve market competitiveness.
(2) Low production energy consumption:
The company adheres to the management concept of "saving, high efficiency and innovation". The company through the implementation of lean management, pay close attention to energy saving and consumption, to eliminate the "running, leakage", improve the comprehensive utilization rate of resources and other measures, the pursuit of everything, the rationalization of the little by little, and constantly improve and enhance the production management standards. At present, the company's economic and technical indicators have exceeded the advanced level of the domestic industry, the average ton of alumina power consumption of 238.55Kwh; water consumption of 3.6 tons; steam consumption of 1.45 tons; ore consumption of 2.06 tons; alkali consumption of 120 kg.
(3) Build internal industrial chain, save energy and reduce production cost.
The company adheres to the principle of striving for excellence and continuous improvement, and constantly carries out technological innovation, energy saving and emission reduction, and new recycling projects, which reduces the production cost while actively responding to the call of the state. At present, the company has implemented projects are:
1, water-saving technology transformation project
In order to achieve zero discharge of production wastewater and recycling, reduce water energy consumption, the company invested 154 million yuan in January 2009 to build the alumina production system to save 8 million tons of water/year technology transformation project, the project was completed, the amount of wastewater treatment of 20,000 tons per day, can be entered into the water reuse 20,000 tons, will make the company's new water consumption from the implementation of the project. Will make the company's new water consumption from 6 tons before the implementation of 4 tons, annual savings of 4 million tons of fresh water, reduce the discharge of 4 million tons of water/year, reduce COD150 tons/year. The implementation of this project will enable the company's alumina production of wastewater produced by all be purified and recycled, to achieve zero discharge, and effectively alleviate the situation of regional water resources.
At present, this project has been completed and put into operation.
2, energy-saving transformation projects:
The company invested 160 million yuan to focus on the following five energy-saving emission reduction projects: (1) the construction of the spent steam recovery system: the use of dissolution and thickening technology to recover high-pressure dissolved spent steam, the use of evaporation and forced recovery of high-pressure spent steam, the use of dissolved spent steam in the desilication tank to heat up the original ore slurry. (2) Construction of waste heat utilization system project: use the seeding mother liquor to recover the excess heat in the circulating mother liquor, and renovate the roasting flat plate system: use the principle of increasing the filtration and vacuum area so as to reduce the moisture, and reduce the water content of aluminum hydroxide filter cake and roasting energy consumption. (3) Renovation of casing heater and pressure cooker to reduce energy consumption: increase the diameter and length of the pipe, increase the preheating area, improve the utilization rate of heat energy, and reduce the amount of high-pressure steam. (4) Gas station waste heat steam utilization project: use the excess steam generated by the gas station as the heating source of hot water for finished product washing. (5) Electricity saving in material transportation system and electric system renovation: renovation of red mud return pump, renovation of heat pipe network, renovation of high-pressure dissolution pipe bundle, etc. Through the implementation of the above five projects, the 2008 energy saving and emission reduction targets are realized by reducing steam unit consumption by more than 20%; reducing electricity unit consumption by more than 15%; reducing new water unit consumption by more than 25%; and reducing comprehensive energy consumption by more than 20%. Through technological transformation, the company further optimizes the energy system, and the utilization rate of waste heat and pressure reaches a high level, saving 171,831 tons of standard coal for the whole year, and reducing the alumina production from the current more than 500 Kg-standard coal/t-AO to more than 400 Kg-standard coal/t-AO;
The energy-saving renovation project of the alumina production system has been included in the first batch list of the 2008 National Financial Incentive Project Implementation Plan.
The alumina production system energy-saving renovation project was included in the 2008 national financial incentives to implement the project in the first batch of the list, in accordance with the Ministry of Finance, the Development and Reform Commission, "energy-saving technology renovation interim measures for the management of financial funds" incentive standard of 300 yuan / ton (the central 250 yuan / ton of standard coal, the local 50 yuan / ton of standard coal), can be rewarded with financial incentives for more than 51 million yuan. It is the largest energy-saving unit among 109 projects in Henan Province, and the unit with the largest amount of national incentive funds.