BT-2002 Laser Particle Size Analyzer

Advantages of BT-2002 Laser Particle Size Analyzer 1. High accuracy 2. Application: CWM, coal powder 3. CE certificate

BT-2002 Intelligent Laser Particle Size Analyzer

 

BT2002, for CWM particle test,is developed by National Project Technology Center of CWM and BETTERSIZE. It utilizes the property that the CWM particles can cause laser diffraction and laser dispersion.Fast speed, easy operation and good repeatability,it is ideal particle size test instrument for CWM producer and user. It includes optical testing and signal transforming device (main engine) comprising laser generator, spatial filter, laser beam collimation and laser beam expansion system, Fourier lens, prism, multi-element photoelectric receiver and electric circuit system, etc; sample preparation device comprising disperser, stirrer, circulation pump, sample pool, sample feeding pipeline, etc; computer device comprising computer, printer, test software, etc. It gets particle diameter signal through laser dispersion created by optical testing device and sample preparation system, then transmit these signals to computer for CWM result. Besides, it can also test the particles of fairly coarse powder.

 

 

 

Specifications

 

Size Range: 1-2600 um Sample Inflow Method: (Liquid) External automatic circulating and dispersing system (Dry) External automatic dry dispersing and feeding system Repeatability: <±3% (CRM D50) Accuracy: <±3% (CRM D50) Measuring Principle: Mie scattering theory Laser: Import optical fiber semiconductor laser Operation System: Win XP/ Win 7 Connection Port: USB or RS232 Photodetector: 76 pcs Ultrasonic Power: 50W Tank Capacity: 500ml Circulating Flowrate: 500-2500ml/min Outer Dimension: 810*300*320mm

 

Applications

 

CWM(coal water mixture),coal powder. Coarse samples such as gun powder,catalyst,core,river sand,chemcal raw material,non-metallic powder etc.

 

Features

 

Precise optical alignment system formed by lens with large aperture and long focal distance works with 76 channel detectors to extend size range to 1-2600 micrometers. 3D auto alignment system.Controlled by computer,the center of the controller will automatically align with the lens center to perform background calibration automatically. Large-volume and large-flowrate peristelltic circulating and dispersing system incorporates sample dilution,ultrasonicating,electric agitating,peristeltic circulating,draining and cleaning to secure the representative of the tested samples. Using Mie Scattering theory to process acquired data.Reverse algorism includes R-R,Free1 and Free2 to meet diversified requirement from different sectors,industries and customers.

 

Technical Specification

 

 

     BT-2002 Serial test result (certain CWM test data)

 

Particle Size	D10	D16	D25	D50	D75	D84	D90	D97
Test 1(um)	5.11	8.14	13.23	32.07	65.14	87.34	110.95	171.51
Test 2(um)	5.12	8.19	13.37	32.68	67.15	89.99	114.4	178.47
Test 3(um)	5.11	8.16	13.29	32.37	66.28	88.72	112.81	175.34

 

 

 

Principle

 

 

Laser particle size analyzer measure the particle size on basis of the phenomena that laser will diffract on partilces.In case the light beam is blocked by particles,part of them will diffract ,angle θ will be formed between diffracted light and the main beam.Both diffraction theory and results from experiment show that angle θ is related to size of particle,the larger the particle is,the smaller the θ is;the smaller the particle is,the larger the angle is.Further research shows that strength of diffracted light represent number of the particles,thus particle size of the sample is obtained through measuring strength of the diffracted light at different angle.

 

BT-2002 Laser Particle Size Analyzer