Advantages of coke moisture analyzer

Advantages of coke moisture analyzer

Using 2.40GHz low-frequency microwave (which can penetrate high-density and wide belts), the attenuation and phase change caused by the transmission of this wave through the measured medium are mainly determined by the dielectric constant and dielectric loss tangent of the medium. Water is a polar molecule, and its dielectric constant and dielectric loss tangent are higher than those of ordinary media. Usually, the dielectric constant and loss tangent of an aqueous medium are mainly determined by its moisture content. Microwaves emit energy from the microwave emitting probe located below the conveyor belt, and after passing through the belt and material, the remaining microwave energy is received by the microwave receiving probe at the upper end of the belt. Based on the attenuation of microwave power and changes in phase shift, as well as the calculation of instantaneous total mass using ultrasonic quality compensation probes, the moisture content of the material is calculated using the percentage content of total energy loss and total mass.

Due to the penetration of microwaves through the tested material, all physical moisture can be measured. This applies not only to surface moisture, but also to internal moisture! This technology improves measurement accuracy and precision, and the color and surface structure of the material, as well as water vapor and dust, will not affect the measurement results.

Advantages of coke moisture analyzer

Advantages and Characteristics:

1. Not sensitive to the pH value and conductivity of the tested material.

2. The measurement is representative of the total water (the sum of external and internal water of the tested material) test results.

3. Non contact measurement: Will not wear the probe, will not adhere to materials, and will not affect the production process.

4. Provide instantaneous measurement values (real-time testing) for process control.

5. High measurement accuracy, with a uniform material accuracy of 0.1 to 0.01%.

6. Maintenance free and low operating costs.

7. Low emission energy, will not change the properties of the material, safe and reliable.

8. Not affected by environmental factors such as dust and water vapor, with anti-interference abilityStrong power.

9. Not affected by material color changes and sunlight exposure.

10. Measurement method: Microwave penetration.

11. Configuration: Energy emission probe, receiving probe, height (mass) compensation probe, microcomputer central processing system.

12. Rich in functionality, with multiple variable measurements available, such as temperature, mass flow rate, etc

parameter：

• Test principle: Non contact penetration measurement

• Moisture range: 0-80% (depending on application)

• Test accuracy: 0.1% to 0.01% (depending on the application)

• Response time:<1.5us (microseconds)

• Calculation rate: 8 * 216 pulses per second

• Pulse rise time: 250ns

• Power supply: 110-230VAC

• Weight: Approximately 18Kg

• Protection level: IP65

• Environmental temperature: 0-55C (ambient temperature)

• Microwave emission probe:CM8628E

• Microwave receiving probe: CM8628R

• Ultrasonic quality compensation probe:CM Sonic73

• Microcomputer central processing system:M-CONTRONorIndustrial computer (XP or WIN7) operating system

• Digital output (option): high moisture alarm and low moisture alarm functions

• Digital signal output: RS232 or RS485 connection to computer software function

• Universal output: 2 sets of 0-20mA or 4-20mA outputs (adjustable)Free upgrade of diagnostic cable interruption alarm function.

• Microcomputer central processing unit: bright 4-line LCD display

• Alarm signal: lithium battery buffer; Complete watchdog function.

• Digital input: Belt unloaded or stopped, instrument suspends measurement function

• Optional explosion-proof type

Comparison between coke principle and other principle moisture meters:

• Infrared, capacitance, conductivityprincipleThey all have certain limitations. radioactive sourceprincipleIt will bring a lot of maintenance work and potential hazards.

• infraredprincipleCan only measure the humidity on the surface of the material, microwaveprincipleIt can measure the humidity of all materials.

• Small changes in color can significantly affect infrared radiationprincipleThe measurement results, while microwaveprincipleNot affected by color.

• infraredprincipleThe measurement results are affected by the intensity of light, while microwaveprincipleIt will not be affected by the color of the light intensity.

• In harsh industrial environments, infraredprincipleThe accumulation of dust and soil in the measuring lens can affect the measurement, while microwaveprincipleIt will not affect the measurement.

Partial on-site cases:

Online moisture detection of ironmaking mixed coke and blast furnace coke

Online moisture detection of incoming materials before mixing and online moisture detection after mixing

Online moisture detection after mixing

Online moisture detection of pellet raw materials and online moisture detection of blue charcoal

Online moisture detection for coal transportation