DGC Gas Content Direct Measurement Device

DGC Gas Content Direct Measurement Device

The DGC gas content direct measurement device can be applied to predict gas emission, predict dangerous working faces and areas, evaluate the effectiveness of pre extraction of gas, and prepare gas geological maps. The DGC gas content direct measurement device directly drills coal cores at a predetermined depth underground, measures the gas desorption rate and amount of the coal cores, and uses a specific mathematical model to calculate the gas loss before the coal sample is sealed in the coal sample cylinder; The DGC gas content direct measurement device calculates the original gas content and the original desorbable gas content by measuring relevant parameters in the laboratory. The testing time for this process and equipment is short, generally less than 8 hours; The measurement of engineering quantity is less than the indirect method for measuring coal seam gas content, and the measurement cost is lower; The selection of measurement location is less affected by geological structures and can be measured at a large number of measurement points; The reliability and accuracy of the measurement are high, and the accuracy is higher than the gas content measurement value during geological exploration.

Main technical indicators of DGC gas content direct measurement device: Measurement time:<>

1. Underground coring system and underground analysis system

Core tube diameter: ￠ 73, ￠ 90

Core depth: 50m

Number of samples taken at once: 5

DGC Gas Content Direct Measurement Device Core Drilling Angle:>0 ° DGC Gas Content Direct Measurement Device

Underground desorption time required: 30 minutes

Underground drainage tube range: 800ml

Underground suction tube accuracy: 5ml

2 Ground gas desorption system

Power supply: 220V

Suction tube accuracy: 5ml

DGC gas content direct measurement device with suction tube range: 1000ml/tube, 1500ml/tube

Micro vacuum pump pumping rate: 3L/min

Micro vacuum pump vacuum degree: 65KPa

Temperature gauge: -50~0~500 ℃

Electronic pressure gauge: 977hPa to 1050hPa

3 Weighing System

Weigh 2000g

Sensitivity 0.5g

Peeling range 2000g

Stable time<>

Weighing disc diameter ￠ 130mm

Environmental temperature: 5-35 ℃

Power supply voltage 220V (+10%~-15%)

Power consumption 5W DGC gas content direct measurement device

4 Coal Sample Crushing System

Material of bowl: high manganese g

Material particle size: ≤ 26mm

Discharge particle size: 80-200 mesh

Working power supply: 380V, 50HZ

One time loading capacity: ≤ 1000g/bowl

Crushing time: 3-5 minutes

DGC gas content direct measurement device, total weight: 160Kg

Motor power: 1.5KW

5 Moisture determination system

Load: 10g

Division value: 5mg

Differential ruler reading range: 0-1g

Moisture determination accuracy: ± 0.2g%

Temperature regulation range: 75 ℃~160 ℃

Weighing disc diameter: ￠ 100mm

Power supply and power consumption: 220V 50HZ 260W

6 Gas Composition Determination System DGC Gas Content Direct Measurement Device

Main measurements: O2, N2, CH4, CO2

Type: Dual thermal conductivity, micro molecular sieve (5A)

Standard gas: one bottle, CH4 35%, CO2 1%, O2 15%, N2 49%

Carrier gas: one bottle, high-purity hydrogen gas

The specific type depends on the requirements of the demander