Bag dust monitoring device

NegotiableUpdate on 02/28

Model

Nature of the Manufacturer: Producers

Product Category

Place of Origin

Online Consult

Overview

The bag dust monitoring device uses AC coupling technology, which is a modern and rigorous and stable monitoring technology, especially suitable for continuous emission recording and data accumulation. The working principle is to use the charge induction generated by the flow of dust particles around the probe to confirm the online emission amount (mg/sec) or emission concentration (mg/m3) of dust particles. Under relatively stable combustion conditions (i.e. at the same emission point, there are no significant changes in flow rate, temperature, pressure, humidity, and particulate properties), this product is directly calibrated and used for online monitoring of emission concentration.

Product Details

brand	Other brands	Price range	discuss personally
security level	Non explosion proof category	Working principle	Other methods
Origin category	domestic	application area	Environmental protection, chemical industry, geology and mining, energy, metallurgy

Bag dust monitoring deviceWorking principle

During the transportation of gas-solid two-phase fluids containing dust particles, the collision and friction between dust particles and dust particles, as well as between dust particles and the inner wall of pipelines, will cause the dust particles to carry charges and form an electrostatic field. When charged dust particles pass through the measuring electrode, positive and negative charges are induced by the measuring electrode, and the charges form a current signal during the transfer motion; The magnitude of this AC signal is directly proportional to the mass content of dust. By further amplifying and processing this electrical signal, the dust concentration (mg/m3) can be measured.

Purpose and Function

1. 24-hour real-time online monitoring, real-time grasp of changes in dust concentration inside the box

2. Replace workers for leak detection and reduce manual work intensity

3. Reduce manual leak detection and improve production efficiency

4. Timely and effective understanding of dust removal effects to ensure the service life of downstream equipment

5. Provide data diversity to help better understand and analyze the dust removal efficiency of dust collectors, ensuring production

Bag dust monitoring devicecharacteristic:

1. By using communication coupling technology, the detection sensitivity of dust is high, the linearity is good, and dust contamination of the probe does not affect the measurement sensitivity. It is maintenance free and requires no cleaning.

2. Standard two-wire 4-20mA current output, strong anti-interference ability, easy long-distance signal transmission, no special requirements for signal transmission wires, linear relationship between output current and dust concentration, convenient for subsequent PLC data processing.

3. The installation and use are completely consistent with the two-wire pressure transmitter, and on-site engineering and technical personnel can use it correctly without any special training. The installation is convenient and the operation is reliable.

4. The integrated transmitter output 4-20mA current in the junction box is electrically isolated from the dust sensing probe to achieve safe signal transmission.

3、 Product parameters

operating ambient temperature	-20 ℃~60 ℃ (electronic components)
Operating environment humidity	Non condensing 90%
Operating environment vibration	Continuous oscillation, any direction, any frequency: root mean square value 2g (20m/s2)
Operating environment electromagnetic field	At 50 Hz=60 A/m (equivalent to a magnetic field of 50 AT in a 1 meter x 1 meter square electromagnetic coil)
Protection of operating environment	Protection level: IP66/NEMA4 aluminum alloy shell, suitable for installation in non corrosive environments, stainless steel probe
Pipeline gas pressure	-0.1 – 1MPa
Pipeline gas flow rate	1m/s～30m/s
Pipeline gas temperature	0 ℃~250 ℃ (260 ℃~800 ℃ can be customized)
Pipe OD	0.1 meters to 4 meters
Probe structure	The standard probe is 16mm in diameter, with a length ranging from 100mm to 1000mm. The probe material is rare earth amorphous alloy,
Dust particle size range	The nominal range is 0.1 μ M to 200 μ M, and it can still receive signals outside the nominal range, but the signal characteristics are slightly different.
powder material	Including: dust, coal powder, flour, dust, smoke, graphite, manganese dioxide, quicklime and other various particulate matter
zero drift	(Time) Less than 1% of the range per year.
zero drift	Within the temperature range, below 1% of the measuring range.
Full-scale drift	(Time) Less than 1% of range per year
Full-scale drift	Within the temperature range, below 1% of the measuring range.
Line stability	All components of the system are made of high stability electronic assemblies.
Noise resistance	All 50 or 60 Hz audio and harmonics are filtered out before the signal is received
measuring range	0-10mg/50mg/100mg/200mg/1000mg/30g/100g/m³
Transmitter output mode	2-wire system 4-20mA (built-in isolator, explosion-proof and anti-interference)
Transmitter power supply	24V (available within the range of 15V to 32V)
measurement accuracy	±5%
Probe length selection	Please select the probe length according to the formula, that is, D/3 ≤ L ≤ 2D/3 (where D - inner diameter of the pipeline, L - probe length)

Installation precautions:

(1) The sensor base and length dimensions are provided by the manufacturer, and the base has a hole size of φ 32 ± 2mm in the pipeline.

(2) Please use 0.75mm2-1.5mm2 ordinary twisted pair cables for transmission wires (in environments with particularly strong interference, please use shielded twin core cables and ground the shielding layer well).

The GLT-F bag leak detector is widely used in various industrial applications, including steelmaking, power generation, petroleum, chemical, pharmaceutical, building materials processing, coal mining and mining, cement manufacturing and packaging industries. Typical applications include detecting damaged filter bags in bag filters, recovering powdered materials, monitoring the total amount of product transportation, or monitoring the concentration of smoke and dust emissions from boilers of various sizes and fuels.