Solution | ENN Power helps the ceramic industry save energy and reduce emissions
On May 31, 2021, the National Development and Reform Commission was inGuiding Opinions on Strengthening the Prevention and Control of the Ecological Environment at the Source of High Energy Consuming and High-Emission Construction ProjectsIt is clear that the "two high" projects are temporarily counted according to six industry categories such as coal power, petrochemical, chemical, iron and steel, non-ferrous metal smelting, and building materials, as an important part of the large building materials industry.The ceramic industry has also officially enteredThe list of "two highs"。With the introduction of policies such as "double carbon", "dual control" of energy consumption, and "coal to gas", in the environment of general rise in fuel and raw materials, controlling costs and improving efficiency has become a pain point for all ceramic manufacturers.
Efficient and environmentally friendly are the current ceramic industryThe core demand for drying technology
The above picture shows the typical production process of ceramics, the raw materials are made into mud through the ball milling mechanism, and then dried into powder by the spray drying tower, the powder is formed by the press, the glaze is fired by the roller kiln, and finally polished to form a finished product.Among them, drying is one of the very important processes in the ceramic production process, which is not only related to the quality of ceramic products, but also affects the energy consumption and emissions of ceramic enterprises, so the environmental protection and energy conservation of the drying process are major matters related to the production and development of enterprises.
Traditional drying has two processes: coal-fired hot air drying and gas hot air drying, among which coal-fired hot air drying has the disadvantages of soaring coal prices, serious pollution, cumbersome coal transportation and procurement, etc., while gas hot air drying directly converts gas into heat energy, with high operating costs and unscientific utilization. The industry urgently needs an energy-saving solution for the utilization of the whole value chain of energy from the energy input end to the output end.
gas turbine cogeneration solution,Realize energy cascade utilization, energy conservation and emission reduction
ENN Power put forward around the two major energy needs of ceramic enterprises of "heat + electricity"Overall solution for combined heat and power system with gas turbine as the core deviceThe thermal energy is used for drying the powder of the drying tower, and the electrical energy supports the operation of electrical equipment such as ball mills, presses, and fans, and realizes the overall utilization of system energy in accordance with the principle of cascade utilization.
●Efficient, with a comprehensive energy efficiency of more than 85%
The gas turbine adopts advanced technologies such as high-efficiency centrifugal compressor, high-efficiency axial flow turbine, and high-speed motor, and the waste heat can be directly applied to the spray drying tower without the need for secondary energy conversion equipment, ensuring that the system has high comprehensive energy efficiency, effectively reducing the drying cost of ceramic enterprises, and supplementing customer electricity. Taking the E2100 gas turbine (simple cycle) as an example, the rated power generation is 2090kWh and the natural gas consumption is 1078Nm3/h (15°C, 101.325kPa environment without inlet and exhaust pressure loss, the calorific value of natural gas is 34MJ/Nm3), the heating temperature is 611°C (the temperature can be adjusted with supplementary ignition), and the drying heat is equivalent to 825Nm3natural gas, saving 4.92 million yuan in energy costs (calculated according to the electricity price of 0.68 yuan and gas price of 2.8 yuan).
●Environmental, CO2Emissions are reduced by more than 20%
The gas turbine controls the total emission of nitrogen oxides (NOx) within 25ppm through high-efficiency and low-emission combustion technology, which can effectively reduce the pollutant emissions of the drying tower. Taking the E2100 gas turbine as an example, compared with the coal-fired hot blast furnace, it can reduce carbon dioxide emissions by 13,000 tons, sulfur dioxide by 124 tons, nitrogen oxides by 36 tons, and dust by 52 tons.
(Note: 0.3414 kg of standard coal/kWh for electricity, 1.1609 kg of standard coal/Nm³, CO for fuel.)2Emission index 2600 kg/t standard coal and SO2Emission index 24 kg/t standard coal, NOx emission index 7 kg/t standard coal, dust emission index 10 kg/t standard coal)
●Fast, reach full load in 2.5 minutes
The use of one-button start-stop control technology can realize the rapid start and stop of gas turbines, effectively reduce manual control operations, shorten the time of starting and stopping each process system of the unit, and improve the operating efficiency. Taking the E2100 gas turbine as an example, the self-designed gas turbine control system is adopted, ignition to the rated speed of about 5 minutes, and 2.5 minutes to reach full load (2100kW), to achieve rapid response of the gas turbine, and the response time can be adjusted according to the actual needs.
●Professional, providing full life cycle technical services
ENN Power has been carrying out a complete set of gas turbine business for a long time, cultivating a professional and efficient technical service team, the service system is user-centric, relying on the digital operation and maintenance mode, professional technical support and perfect gas turbine ecosystem, has established a gas turbine service system with rapid response capabilities, which can realize emergency services for domestic users within 24 hours, and has the ability to provide users with one-stop comprehensive energy solutions for scheme design, spare parts management, installation and commissioning, technical training, operation and maintenance services and maintenance services.
As a domestic technology enterprise for the development of micro and small gas turbines, ENN Power has more than ten years of technical precipitation and experience.Its pan-energy solutions with gas turbines as the core equipment have changed many industries, including ceramics and textiles, and have become an important way for enterprises to develop a circular economy.In the future, ENN Power will stick to its original intention and is committed to providing users with efficient and low-carbon pan-energy solutions, helping enterprises embark on the road of differentiated transformation and injecting new impetus into the low-carbon and green development of the industry.
