Development of an automated set of technical means for controlling the technological process of ammonium nitrate production

The purpose of this course work is to develop an automated set of technical means for controlling the technological process of ammonium nitrate production to improve product quality, increase volume and reduce energy consumption. To achieve this goal, it is necessary to solve the following problems: 

• To study the technology of neutralization of nitric acid with gaseous ammonia;
• To carry out a description of the functional scheme of the technological process;
• Make a choice of automation tools;
• Calculate the narrowing device for measuring the flow rate.

Content

INTRODUCTION. 4

Chapter 1. Analysis of the technological process for the production of ammonium nitrate..  6

1.1. Technology of production of ammonium nitrate..  6

1.2. Analysis of the functional scheme of automation. 12

Chapter 2. Selection of automation tools. 16

2.1. Temperature measurement..  16

2.2. Flow measurement. 17

2.3. Level measurement. 21

2.4. Quality control of substances. 24

2.5. Regulatory Authorities..  27

2.6. Programmable logic controller. 28

Chapter 3. The choice of the calculation method of the narrowing device for measuring the flow rate of nitric acid.  31

3.1. Analysis of methods for calculating narrowing devices. 31

3.2. Calculation of the narrowing device. 40

CONCLUSION. 44

REFERENCES..  45