The DGC Gas Content Rapid Determination Equipment System is a complete set of laboratory and underground determination equipment. It consists of underground and surface determination devices, divided into an underground desorption system, surface gas desorption system, weighing system, coal sample crushing and desorption system, moisture determination system, and data processing system. This equipment is designed and manufactured in accordance with the standard GB/T23250-2009 "Direct Determination Method of Coal Seam Gas Content Underground."
Applicable conditions for the DGC Gas Content Rapid Determination Equipment System:
1. Operating ambient temperature (°C): 0～38
2. Operating relative humidity (%): ≤95
3. Atmospheric pressure (kPa): 75～134
4. Core tube: Suitable for coal seams with harder coal quality and upward angled boreholes.
5. In environments free from metal-damaging agents and interfering gases.
6. Not suitable for severely leaking boreholes, gas outburst boreholes, or gas content determination in rock cores.
Technical parameters of the DGC Direct Gas Content Determination Device:
Underground Desorption System: Core tube diameter Φ73, stainless steel sample can volume 880ml, desorption instrument range 800ml or 1000ml;
Surface Gas Desorption System: Group desorption resistance ≤10pa; vacuum pump extraction rate: 4L/min;
Coal Sample Crushing and Desorption System: Power voltage: 1.5kW, 220V; single loading capacity: approx. 1000g/bowl;
Coal Sample Weighing System: Digital display balance range: 3000g, accuracy 0.01g, with auxiliary weighing vessels;
Moisture Determination System: Maximum load: 110g, minimum division value: 5mg, moisture determination accuracy: 0.5%;
Data Processing System: User management, experimental reports for basic indicators such as W, Wa, Wc, P, Q, report output, printing, saving, help, and other functions.

Zhengzhou Aidi produces and supplies coal drill cuttings desorption instruments, deep hole sampling devices, pressure gauges, geological exploration desorption instruments, borehole flow meters, mine extraction and outburst prevention equipment, true density determinators for coal, gas content determinators, automatic determinators for initial gas emission rate, diffusion speed determinators, gas parameter instruments for coal extraction pipelines, and borehole coal powder circulation devices.Portable instruments:

Portable comprehensive gas extraction parameter determinators, intrinsically safe coal seam gas pressure determinators for mining, coal gas content determinators, gas outburst parameter instruments, coal drill cuttings gas desorption instruments, underground gas desorption instruments, coal sample cans/containers, geological exploration gas desorption instruments, multi-stage borehole flow meters
Capsule hole sealers, high negative pressure gas samplers, methane sensor calibrators, automatic negative pressure samplers, positive pressure samplers/multi-gas samplers, methane sensor calibrators, self-rescuer airtightness testers (pointer type/digital display/touch screen type)
Optical interference methane determinator calibration devices (intelligent type), optical interference methane determinator correctors (water column type), electric thermostatic drying ovens
Laboratory instruments:
Direct/automatic gas content determination devices (atmospheric desorption method), residual gas content determination devices (degassing method), deep hole rapid sampling devices, fully automatic gas adsorption constant determinators, fully automatic initial gas emission rate determinators, fully automatic true density determinators for coal, fully automatic industrial analyzers, mining gas chromatographs, ball mills, sealed sample preparation crushers, fully automatic sulfur determinators, coal dust explosion determination devices, coal spontaneous combustion tendency determinators, coal sample preparation devices, active coal seam gas pressure determinators, gas sensor calibration devices, determinators for標志氣體 and critical values of coal spontaneous combustion, borehole coal powder circulation devices