Dependence on Foreign High-End Products and Challenges in Uzbekistan's Industrialization Process

Uzbekistan is located in Central Asia and boasts rich mineral resources, among which gypsum stands out. It has one of the largest gypsum reserves globally. The gypsum manufacturing industry in Uzbekistan enjoys high international recognition, attracting numerous enterprises.

However, during the transportation of Uzbekistani gypsum powder, dust problems are prominent. Gypsum powder is fine and light, easily becoming airborne during transportation, resulting in dust pollution. This not only harms the environment but also poses health risks to workers and nearby residents. To address this issue, effective dust control measures must be implemented, such as installing dust removal equipment and adopting sealed transportation methods.

# Automatic Control Strategy for Pneumatic Conveying Pump of Gypsum Powder

## I. Introduction

In the production process of gypsum powder, the pneumatic conveying pump is a crucial piece of equipment. Its stable and efficient operation is essential to ensure the continuous production and quality control of gypsum powder. The automatic control strategy for the pneumatic conveying pump of gypsum powder aims to achieve precise control over the conveying process through advanced automation technology, improving production efficiency, reducing energy consumption, and ensuring product quality. This article will discuss in detail the design principles, specific implementation methods, and application effects of the automatic control strategy for the pneumatic conveying pump of gypsum powder.

## II. Design Principles of the Automatic Control Strategy

### 1. Accuracy and Stability

The automatic control system needs to accurately control the flow rate and conveying speed of gypsum powder to meet the requirements of different production processes. At the same time, it should maintain stable operation under various working conditions to avoid fluctuations in the conveying amount and ensure uniform product quality.

### 2. Real-Time Monitoring and Feedback

By installing sensors such as flow meters and pressure sensors on the pneumatic conveying pump, real-time monitoring of key parameters during the conveying process can be achieved. The control system can adjust the operating parameters of the pump in real-time based on the feedback signals to ensure that the system always operates within the optimal state.

### 3. Energy Efficiency and Environmental Protection

Considering energy conservation and environmental protection requirements, the automatic control strategy should optimize the operating mode of the pneumatic conveying pump, reduce energy waste, and minimize dust emissions during the conveying process to create a green production environment.

## III. Specific Implementation Methods of the Automatic Control Strategy

### 1. Flow Control

- **Variable Frequency Adjustment**: By installing a frequency converter on the motor driving the pneumatic conveying pump, the rotation speed of the motor can be adjusted according to the actual production demand. As the rotation speed changes, the conveying capacity of the pump also changes accordingly, thereby achieving precise control of the gypsum powder flow rate. For example, when the production demand is low, the frequency converter can reduce the motor speed to decrease the conveying capacity; when the production demand increases, it can increase the motor speed to improve the conveying capacity.

- **PID Control Algorithm**: A proportional-integral-derivative (PID) controller can be introduced to further enhance the accuracy and stability of flow control. The PID controller can automatically adjust the output signal based on the deviation between the actual flow rate and the set value, so that the actual flow rate quickly approaches and remains stable at the set value.

### 2. Pressure Control

- **Pressure Sensor Installation**: Install pressure sensors at appropriate positions on the pneumatic conveying pipeline to monitor the pressure changes in the pipeline in real-time. When the pressure exceeds or falls below the set range, the control system can adjust the air supply volume or exhaust valve opening of the pneumatic conveying pump to maintain the pressure in the pipeline within a reasonable range.

- **Pressure Protection Mechanism**: Set upper and lower pressure limit values in the control system. When the pressure reaches the upper limit, the system will automatically reduce the air supply volume or increase the exhaust valve opening to prevent excessive pressure from damaging the equipment; when the pressure drops below the lower limit, the system will take corresponding measures to increase the pressure to ensure normal conveying.

### 3. Remote Monitoring and Data Analysis

- **SCADA System**: Establish a Supervisory Control and Data Acquisition (SCADA) system to realize remote monitoring of the operating status of the pneumatic conveying pump. Through the SCADA system, operators can view real-time data such as flow rate, pressure, temperature, and motor operating status on the central control room computer, and promptly discover and handle abnormal situations.

- **Data Analysis and Optimization**: Collect and store historical operating data of the pneumatic conveying pump, and use data analysis tools to analyze the data. Based on the analysis results, optimize the operating parameters of the pump, such as adjusting the best air supply pressure and flow rate, to improve production efficiency and equipment lifespan.

## IV. Application Effects of the Automatic Control Strategy

### 1. Improved Production Efficiency

Through precise control over the flow rate and conveying speed of gypsum powder, the automatic control strategy can ensure that raw materials are supplied to subsequent production processes in a timely and accurate manner, avoiding production delays caused by uneven material supply or excess supply. At the same time, the optimized operating mode of the pneumatic conveying pump shortens the preparation time and adjustment time for each production batch, thereby improving overall production efficiency.

### 2. Enhanced Product Quality

The stability of the automatic control strategy ensures that the conveying amount and proportion of gypsum powder remain consistent during production, which is beneficial for controlling the quality of the final product. In addition, real-time monitoring and adjustment of key parameters such as pressure and temperature help reduce product defects and waste caused by unstable factors, thereby enhancing product quality and market competitiveness.

### 3. Energy Saving and Emission Reduction

The automatic control strategy optimizes the operating mode of the pneumatic conveying pump, reducing unnecessary energy consumption. For example, by adjusting the motor speed according to actual production demand, energy waste caused by overloading operation can be avoided; meanwhile, precise control of pressure can reduce energy consumption in air compression and exhaust processes. In addition, effective dust collection and treatment measures during the conveying process reduce dust emissions, protecting the environment and meeting increasingly stringent environmental requirements.

In conclusion, the automatic control strategy for the pneumatic conveying pump of gypsum powder plays an important role in improving production efficiency, ensuring product quality, and saving energy and reducing emissions. With the continuous development of automation technology, this control strategy will be further improved and applied in broader fields, providing strong support for the high-quality development of the gypsum powder industry.

Overall the application of powder material pneumatic conveying pump in the short distance transportation industry of gypsum powder in Uzbekistan is of great significance. It can not only improve the production efficiency and quality of gypsum powder related enterprises reduce production costs but also promote the development of the industry. However there are also some problems in the application of powder material pneumatic conveying pump in the gypsum powder transportation industry which need further research and solution. In the future with the progress of science and technology the performance of powder material pneumatic conveying pump will be further improved and its application in the gypsum powder industry will be more extensive. Following the beat of progress and forging ahead with dreams! Joining hands together we wish ZHONGYUAN customers of powder material pneumatic conveying pump in Uzbekistan: Thank you for the trust and support from friends in the gypsum powder powder material pneumatic conveying pump transportation industry in Uzbekistan. We hope our cooperation will be closer and create brilliance together.