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What are the preconditions of air pollution control project?
Teaching outline of air pollution control engineering

First, the nature and tasks of the course.

1. Course nature: Air pollution control engineering is an important course for chemical engineering and technology specialty. On the basis of systematically and concisely expounding the basic principles and knowledge of air pollution, this course also discusses the basic theoretical knowledge, working principle, design and calculation of various control technologies of air pollution meteorology, atmospheric diffusion mode, particulate pollutants and gaseous pollutants such as SO2 and NOX, so that students can master the concept, atmospheric diffusion and common use of air pollution.

2. Course task: Through teaching activities, students can master the basic concepts, theories and calculation methods of air pollution control engineering, improve their ability to analyze and solve problems, and lay a good foundation for professional work, scientific research and environmental management.

Second, the basic requirements of course teaching

The teaching links of this course include: classroom teaching, students' self-study, exercises, answers and final exams. Through the above links, students are required to master the key technologies of air pollution control, understand the basic theory of pollution control engineering of particulate pollutants and gaseous pollutants such as SO2 and NOX, the basic knowledge of air pollution meteorology, the calculation method of diffusion concentration of air pollutants, and the control technology and technology of main pollutants. This course lasts for 32 hours (depending on the teaching plan of the year), and the assessment methods can be closed-book examination, open-book examination and writing course papers.

Total score: 90% in the exam and 10% in the homework.

Third, the course teaching content

(1) Introduction 1. air pollution

2. The main contents of air pollution control. Teaching requirements for comprehensive prevention and control of air pollution:

1, which requires a deep understanding and mastery of the concept of air pollution, the common classification and forms of air pollutants. 2. It is required to know the present situation of air pollution and waste gas control in China and master the comprehensive prevention and control measures of air pollution.

Clean combustion technology 1. Type of fuel. Combustion process of fuel

3. Formation mechanism of main pollutants during combustion.

4. Clean combustion technology

5. Teaching requirements of pollutant emission calculation in combustion process:

1. Grasp the essence of fuel combustion, the main factors affecting fuel combustion, the representation method of coal composition and related calculations.

2. Understand the formation and control of pollutants such as SOX and particulate matter during combustion. 3. Master the calculation of theoretical air volume and flue gas volume required in the combustion process.

(3) The flue gas emission is 1. Factors affecting flue gas diffusion. Estimation of pollutant concentration. Teaching requirements of flue gas lifting height;

Understand the structure of the atmosphere, the meaning and expression of main meteorological elements such as temperature, humidity, air pressure and wind, and the change of atmospheric boundary layer wind with height.

2. Master the concepts of direct temperature drop rate and atmospheric stability, their relationship and their influence on atmospheric diffusion. 3. Understand the definition and types of inversion and its relationship with air pollution. 4. Master Gaussian diffusion model and point source concentration estimation. 5, master the design and calculation of chimney. 6. Know the location.

7. Understand the diffusion modes under special meteorological conditions, the diffusion modes in cities and mountainous areas, and the diffusion modes of line sources and non-point sources.

Particulate matter pollution control technology foundation 1. Fundamentals of dust removal technology II. Inertial dust collector 3. Wet dust collector 4. Filter the dust collector 5. Electrostatic precipitator 6. Teaching requirements for the selection of dust removal devices;

1, to understand the definition of granularity and its physical properties.

2. Master the definition and expression method of dust particle size distribution and the expression method and calculation of technical performance of purification device. 3. Understand the force and movement of particles when they are subjected to various external forces (resistance, gravity, centrifugal force, electric field force, etc.). ).

4. Master the working principle, performance, design and calculation of gravity settling chamber.

5. Master the working principle, performance, design calculation and selection of cyclone dust collector, as well as the working principle, structure, dust removal process, driving speed and collection efficiency calculation formula and design of electrostatic dust collector.

6. Understand the working principle and structure of inertial dust collector.

7. Master the dust removal mechanism of wet dust collector, the design of Venturi scrubber and the working principle, performance and design of filter dust collector.

Gas pollutant control technology 1. Purification method of gas pollutants. Flue gas desulfurization technology

3. Purification technology of nitrogen oxides in flue gas. Purification technology of fluorine-containing waste gas

5. Waste gas purification technology containing volatile organic compounds. Teaching requirements for other waste gas purification technologies:

1. Master the methods of purifying gaseous pollutants, the principles and process equipment of absorption, adsorption, catalytic conversion and combustion. 2. Master the dry and wet purification technology of sulfur dioxide in flue gas. Master the purification technology of nitrogen oxides in flue gas. Master volatile organic compound waste gas purification technology 5. Understand other waste gas purification technologies.

Industrial ventilation technology 1. Overview of ventilation technology II. Gas collecting hood

3. The tuyere in the ventilation system 4. Ventilation pipes and ventilation equipment. Teaching requirements of purification system protection:

1. Understand the basic concepts of industrial ventilation and exhaust. 2. Understand the basic types and design principles of gas hood. 3, master the protection of purification system.