The batching control system includes raw material storage, transportation, weighing and batching, dust removal, material mixing, packaging and filling, etc., involving many kinds of materials such as powder, granule, block, sheet and liquid; Among them, the weighing and Batching system can reasonably select a variety of metering methods such as single material batching, multi-material sequential accumulation, weight reduction batching, weightless scale batching, belt/screw scale, bulk scale and so on according to industry characteristics and process requirements.

Automatic batching system is a very important process in the process of fine production, and the quality of batching process plays an important role in the quality of the whole product. The automatic batching control process is a multi-input and multi-output system. All batching production lines are strictly coordinated and controlled, and the material level and flow rate are monitored and adjusted timely and accurately. The system consists of a programmable controller and an Electronic scale, which form a two-level computer control network, and is connected with field instruments, control computers, PLC, frequency converters and other devices with high intelligence and fast processing speed through field buses. In the process of automatic batching production, the main materials and auxiliary materials are matched in a certain proportion, and the transported materials are measured by electronic scales. PLC is mainly responsible for real-time control of conveying equipment and weighing process, and completes system fault detection, display and alarm.

The negative pressure pneumatic conveying system is one of the commonly used conveying equipment for conveying granular, powdery and massive materials, which is easy to take materials and can be used for online consultation of product details from low .... System Brief Introduction The negative pressure dilute phase pneumatic conveying system is one of the common conveying equipment for conveying granular, powdery and massive materials. It is easy to take materials, and can be used in places where materials are taken from low places, deep places, narrow feeding points and centralized feeding from multiple places, and it is suitable for places where materials are taken without dust. Shandong has many years of experience in negative pressure dilute phase pneumatic conveying industry, and can make accurate conveying parameters determination and pipeline optimization design for specific pneumatic conveying projects to reduce the influence of various pneumatic conveying factors in pneumatic conveying. According to the principle of negative pressure suction pneumatic conveying system, a multi-component suction weighing scale is developed to meet the needs of different customers.

principle of operation

The negative pressure pneumatic conveying system is mainly taken out by pneumatic conveying fan, material taking device, Feeder, pipeline and unloading device, and its working principle is as follows:

1. The negative pressure pneumatic conveying system mainly uses roots blower or vacuum pump as the air source equipment, which is installed at the end of the system;

2. The parts of the pneumatic conveying system take-up device usually adopt a suction gun and a volume feeder;

3. After the operation of the fan, the whole system of ventilation forms negative pressure, and the air is sucked into the clinker pipe by the pressure difference between the inside and outside of the pipeline, and the material and part of it are sucked by the suction nozzle at the same time and transported to the vacuum feeder;

4. In the vacuum feeder, the material is separated from the air, and the separated material is discharged from the bottom of the vacuum feeder;

5. The fine powder particles that are not separated enter the dust remover for purification along with the conveying airflow, and the purified air is discharged into the atmosphere through the dust remover.

System advantage

1. The negative pressure dilute phase system has the characteristics of large pneumatic conveying capacity, long conveying distance and fast conveying speed;

2. The system is easy to take materials, which is suitable for taking materials from low, deep and narrow taking points, and can be used in occasions where it is required to take materials without dust, so that more materials can be fed to a centralized place. The negative pressure dilute phase pneumatic conveying system has wide adaptability and wide application, and powder and particulate matter can be conveyed smoothly;

3. The system is low in cost, low in manufacturing and maintenance requirements, stable in system operation, strong in worker operability, low in operating cost and less in pipeline material residue, and the negative pressure dilute phase pneumatic conveying system is especially suitable for conveying in general airflow drying process and conveying food materials in food industry;

4. The air source of the system is located at the end, so that lubricating oil or moisture will not be mixed into the conveyed materials, and the materials conveyed by the negative pressure dilute phase pneumatic conveying system are cleaner;

5. Because the inside of the conveying pipe of the system is negative pressure, the conveyed materials will not leak even if the pipeline of the system is worn and there is a gap. In addition, because the pressure in the negative pressure dilute phase pneumatic conveying system is lower than the atmospheric pressure, the water is easier to evaporate, so the materials with more water are easier to convey than the pressure conveying type;

6. Generally, the gas conveyed by the system is directly taken from the atmosphere, and the temperature of the gas is the ambient temperature, so the negative pressure pneumatic conveying system is especially suitable for temperature-sensitive materials;

7. The system conveying is continuous or intermittent, and there is no material accumulation in the pipeline, so the negative pressure pneumatic conveying system is used to convey materials with little environmental pollution;