DF-5753 Online Coal Ash Analyzer

The on-line coal ash meter is used for on-line and off-line detection as well as the computation and control of coal ash. It is widely applied in coal mines, coal washing plants, coal blending plants, coking plants, coal-fired power plants, steel plants and coal terminal, etc. It is especially suitable for on-line coal ash analysis on the entire belt conveyor during the coal transportation process, and support the closed-loop automatic control, then improve the producing benefit.

Measurement principle:

On the basis of double energy γ ray absorption method, the coal ash content can be calculated by processing data of the two rays after passing coal attenuation.

Performance parameters:

1.Measurement range: 5%~50%

2.Measurement accuracy:

. When the ash content is between 0 and 15%, error ≤±0.5%;

. When the ash content is between 15% and 30%, error ≤±1.0%;

. When the ash content percentage is beyond 30%,, error ≤±2.0%;

3.Measurement time: 1~3 mins to choose and inquire

4.Belt speed: less than 5m/s

5.Particle size of coal sample: less than 50mm

6.Materiel thickness: 50mm~300mm

7.Measurement requirement: continuous measurement and without lacking materiel

8.Environment temperature: -20~45℃

9.Control room temperature: 0~40℃

10.Detector temperature control accuracy: ±0.5℃

11. Analog quantity output:4-20mA

12.Power: 220V(±10%)50hz

Radiation safety: The safety of sealed sources meets the requirements of GB4075. Dose equivalent rate at 1m of instrument surface≤2.5μSv/h meets requirements of radiation protection in GBZ125-2002. It will not harm operator in regular use.

Main functions and technology characteristics:

(1) Real-time: provide real-time online measurement for the coal which move through the belt and offer the instantaneous value and average value of coal ash in any period.

(2) Representative: Measure the coal that move through the belt and get over the shortage of traditional detection which is not representative because of taking little sample to analyze.

(3) Reliable: It can measure the material by non-contact way on the principle that the signal can pass through the material. Also it can design the most optimized measurement solution and key parts to make sure that the instrument keep steady and reliable operation according to site environment.