BT-Online1 online laser particle size monitoring and control system
Introduction
BT-Online1 is an online particle size monitoring and control system installed on the production site, directly connected to powder production equipment, and performing particle size monitoring and control in real time. The conventional system consists of the host, autosampler, lens protection system, sample recovery system, control system and software. Special systems include explosion-proof, one-for-two, one-for-three and one-for-four.
When BT-Online1 performs particle size monitoring, powder samples are automatically extracted from the device by Venturi technology and sent to the measurement window for particle size testing. The tested samples are returned directly to the device. The entire process of sampling, testing and returning is completed in a closed state without any residue, spillage, loss and pollution. Each measurement interval can be arbitrarily set within 1-60 minutes, and the test results can be transmitted to the control center in real time. The system can automatically control when the granularity results fluctuate. This uninterrupted closed-loop monitoring and control ensures that the particle size of the product is always kept within the preset normal range, which ensures that the particle size of the powder product is stable every month, every day and every batch, thereby ensuring product quality.
In order to ensure the long-term normal operation of the precision optical system in the instrument, a double air curtain protection device is set in the system to protect the lens from dust pollution, effectively solve the problem of lens contamination that plagues the industry, and achieve continuous maintenance-free running time A record 180 days. In addition, the system also has prominent features such as automatic testing, power failure protection, abnormal pressure protection, sampling tube anti-blocking, anti-electromagnetic interference, remote data transmission, and unattended operation. Features
Real-time control function: In addition to monitoring granularity, this system also has control functions. The control method is to perform calculations on the monitored granularity data and standard granularity data, generate control signals, and transmit them to the control center to realize closed-loop control of the equipment, thereby achieving the objectives of improving quality, increasing efficiency, saving energy, and reducing consumption.
Anti-lens pollution system: a double-layer air curtain protection system designed according to the aerodynamic principle, forming a double-layered tight protective wall between the lens and the sample stream, so that the lens and light source are completely protected from sample and ambient air pollution, achieving long-term Continuous particle size monitoring and control ensures the accuracy and continuity of the monitoring data.
Reliable sampling system: The sampling system adopts the Venturi structure, which ensures the representativeness of sampling through multi-point sampling. Through "backflushing" and conical pipe design, it not only prevents the sampling tube from being blocked, but also cleans up residual powder to ensure that The real-time performance, accuracy and continuity of the test were achieved.
Comprehensive performance of the system: with power failure protection and abnormal pressure protection, the system can automatically stop operation in an orderly manner under abnormal conditions; the circuit and mechanical system are equipped with anti-interference functions to adapt to the complex electromagnetic environment at the production site; with automatic alignment Function to ensure that the measurement system is always in the best state. Technical Parameters
Measuring range: 0.1-1000μm
Measuring principle: Mie scattering theory
Repeatability error: ≤3% (national standard sample D50 deviation)
Accuracy error: ≤3% (deviation of national standard D50)
Test method: dry test, negative pressure sampling of Venturi (with anti-blocking function)
Lens protection: Double air curtain protection
Continuous running time: ≥180 days
Test interval: ≥1 minute
Laser light source: imported semiconductor laser
Operating system: WinXP / Win7 / Win8 / Win10
Data transmission: RS485, distance ≤1200m
Photodetectors: 72
Dispersion medium: compressed air
Pressure: 0.5-0.8MPa
Air demand: ≥1500L / min
Sample size: 10-30 g / time
IP protection level: IP65
Voltage: AC220V, 50 / 60Hz, 90W
Volume (host): 800 × 280 × 280mm
Weight (host): 21kg
Introduction
BT-Online1 is an online particle size monitoring and control system installed on the production site, directly connected to powder production equipment, and performing particle size monitoring and control in real time. The conventional system consists of the host, autosampler, lens protection system, sample recovery system, control system and software. Special systems include explosion-proof, one-for-two, one-for-three and one-for-four.
When BT-Online1 performs particle size monitoring, powder samples are automatically extracted from the device by Venturi technology and sent to the measurement window for particle size testing. The tested samples are returned directly to the device. The entire process of sampling, testing and returning is completed in a closed state without any residue, spillage, loss and pollution. Each measurement interval can be arbitrarily set within 1-60 minutes, and the test results can be transmitted to the control center in real time. The system can automatically control when the granularity results fluctuate. This uninterrupted closed-loop monitoring and control ensures that the particle size of the product is always kept within the preset normal range, which ensures that the particle size of the powder product is stable every month, every day and every batch, thereby ensuring product quality.
In order to ensure the long-term normal operation of the precision optical system in the instrument, a double air curtain protection device is set in the system to protect the lens from dust pollution, effectively solve the problem of lens contamination that plagues the industry, and achieve continuous maintenance-free running time A record 180 days. In addition, the system also has prominent features such as automatic testing, power failure protection, abnormal pressure protection, sampling tube anti-blocking, anti-electromagnetic interference, remote data transmission, and unattended operation.
