Automatic powder metallurgy batching and mixing production line, In the process of equipment selection and implementation, the principle of mature technology, good versatility and high reliability is followed.
Design scheme for powder metallurgy automatic batching system:
To ensure the confidentiality of the formula, the on-site control instrument display screen is separately sealed and provided with a locking position.
The main unit of the ingredient system adopts a touch screen tablet computer. The technical department can use keyboard and mouse to operate the computer for formula related operations, while on-site operators can only use touch screen operation.
The ingredient control system starts from 11 silos, where the material is in powder form, Each silo uses a spiral feeder to feed the measuring hopper. To prevent material blockage, each silo is equipped with a mixer, and the parts in contact with the material are made of stainless steel. After the batching process is completed, the material is automatically discharged into the corresponding container, reducing dust pollution to a low limit.
Each raw material warehouse is equipped with an automatic level detection sensor, which automatically alerts when the level reaches the lower limit. This system is designed for fully automatic operation control.
After selecting the relevant formula number, the operator only needs to press the “Start” and “Unload” buttons. The batching system can automatically control the corresponding screw conveyor of the weighing batching system to input materials into the measuring hopper according to the set formula, thus completing automatic batching.
Equipment technical parameters: Instrument accuracy: 1/100000 Measurement accuracy: 3/10000 batching accuracy: <1.5/1000
· Liquid feeding system and engineering
· Powder feeding system and engineering
· Product synthesis system and engineering
· Product filling and packaging system and engineering
· Pipeline system engineering installation
· Sewage, environmental protection system and engineering
· Non-standard design of complete sets of chemical equipment and production lines
· Automation of system engineering and chemical equipment
· Kettle and pressure vessel
‘Complete equipment and System Engineering >
Solvay Powder automatic feeding system is an automatic system for real-time monitoring and management of industrial processes in which particles and powder materials are dispensed and measured according to the selected formula.
Automatic powder feeding system
Including discharge, crushing, dust treatment, screening, conveying and other links, mainly by the bag unloading device, dust treatment/particle size treatment, feeding tank, electric rotary valve, conveying device and other parts.
● Advantages:
· It can realize the conveying of powder materials under closed conditions to ensure that the materials are free from pollution;
· Can realize automatic dust-free operation and fully closed production process;
· Can help solve problems such as large dust and harsh environment during powder unloading and transportation;
· It can meet the requirements of different conveying speed and accuracy.
● Work flow:
· Unloading and crushing
● Material handling
(1) Mechanical transportation
(2) Pneumatic conveying, categories are: suction type, pressure type, mixed type.
(3) The system also includes various feeders and disloaders.
B, measuring equipment and formulation control system
When the material is transported to the storage tank by mechanical or pneumatic transport:
a) The weighing tank is equipped with a sensor and connected to the industrial computer.
b) The operator clicks the start of the batching operation process, and the system automatically controls the feeding process;
c) After the feeding process is completed and all pre-set discharge conditions are met, the automatic discharge process begins.
● Advantages:
· The opening sequence of each feed can be preset.
· The system can record the tank number, feeding amount, deviation value, and the start and end time of feeding and discharging in operation.
· Original data and statistical reports of system operation can be queried and printed.
C, powder discharge system
Powder discharge systems are used to separate air and materials.
● Advantages:
· When the pump and valve are controlled at the same time, the function of pump delay start and pump early close valve can be set;
· Handle materials with the aid of flow equipment when arching, poor fluidity, and holding pump occur;
D, material level meter, pressure detection, safety device
● Material level meter: mainly used for the level detection and control of granular materials and powder materials in powder silo.
● Pressure device: under the premise of meeting the technical requirements of the process, in line with the practical principle, we will consider various factors:
· Pressure measurement accuracy;
· The level of measured pressure;
· Requirements for additional devices;
· Properties of the measured medium;
● Pressure device type:
· Pressure relief device
· Pressure control device
· Voltage regulator.
Additional alarm, remote transmission and other devices as required.
● Safety device:
Solvay liquid and powder automatic feeding systems and engineering safety devices are designed in strict compliance with relevant laws and regulations. We consider the selection requirements for you:
a) Ensure the intrinsic safety of the process;
b) Prevent accidents during operation:
(1) Fully consider the process characteristics and select materials that meet the requirements;
(2) Set on the reaction device:
c) Pressure control device
d) Stabilizing device
e) Emergency control devices
f) Prevent the expansion of the disaster area: set up alarm devices and emergency control devices.
E, powder feeding control system
The powder feeding control system provided by Solvay is monitored by PC+PLC (DCS fieldbus). Statistical management ensures data backup, query, statistics, printing and other functions.
● Advantages: The main components use internationally renowned brand products to ensure the stability and reliability of the system; The measuring system has high precision, good stability, fast reaction speed and long service life. Solvay can provide on-site operation control boxes, MCC cabinets, PLC cabinets
● Other functions:
a) Automatic and manual switch b) parameter setting and display
c) Process dynamic display d) parameter saving
e) Fault display