Mining drilling trajectory methane concentration measuring instrument, coal industry specific instrument

Mining intrinsically safe mobile phone

probe

stainless steelputter

n main purpose

Ø Rapid trajectory measurement of various boreholes underground in coal mines;

Ø In situ measurement of gas concentration and extraction negative pressure along the gas drainage hole;

Ø Quality and defect location detection of gas drainage hole sealing;

Ø Joint diagnosis of multiple boreholes for abnormal gas extraction in the region;

Ø Drilling depth measurement.

n Product advantages

Ø Lightweight to carry, easy and fast to measure;

Ø Wireless transmission of data;

Ø Directly display and view measurement results on underground handheld terminals;

Ø The analysis software is easy to use, has powerful functions, manages drilling groups, and can generate Word reports with just one click;

Ø Real time remote sharing on cloud platforms.

n working principle

YZGW12.8The mining drilling trajectory gas extraction detection instrument is an intelligent and multifunctional in-situ detection device for drilling trajectory gas concentration and extraction negative pressure. The instrument mainly consists of mining intrinsic safety multifunctional probe, mining smartphone, stainless steel push rod, and orifice plug. Install the orifice sealing device on the gas drainage pipe during measurementthreeOn the connector, the push rod passes through the orifice closure device and connects to the probe, pushing the probe to move inside the hole, achieving in-situ measurement of the spatial trajectory, depth, gas concentration along the borehole, and negative pressure of extraction. The measured data is saved in the probe. After the measurement is completed, the probe tube is taken out, and the mining smartphone obtains the measured data of the probe tube through wireless Bluetooth. The on-site display shows the drilling trajectory map, the gas concentration curve throughout the drilling process, and the extraction negative pressure curve.

n Technical Features

Ø Simultaneously measure the drilling trajectory and depth:The probe tube is equipped with high-precision angle sensors and depth sensors, which can accurately determine the spatial trajectory of the borehole and also accurately measure the depth of the borehole;

Ø Simultaneously measure the gas concentration and extraction negative pressure inside the borehole：The probe tube is equipped with a high-precision laser gas concentration sensor andnegative pressureSensors, real-time in-situ measurement of gas concentration at measurement points andnegative pressure；

Ø Lightweight to carry, easy and fast to measureWhen measuring, only carry the mining intrinsic safety mobile phone, probe tube, and corresponding number of carbon fiber push rods down the well. It is small in size, light in weight, and can be carried by a single person; The drilling trajectory measurement adopts offline retesting mode, without the need to connect various cables. After synchronizing the probe tube with the Bluetooth of the mobile phone, the carbon fiber push rod can be used to push the probe tube into the drilling hole for measurement. The measurement interval is selected independently according to the drilling depth,The stabilization time for each measurement only takes 3 seconds, making the measurement simple and fast;

Ø Directly view the measurement results undergroundAfter completing the measurement, the measurement results can be viewed directly on the mining smartphone, including data tables, trajectory curves, gas concentration curves, extraction negative pressure curves, as well as drilling construction quality evaluation and sealing quality evaluation;

Ø Bluetooth data exchange：probeExchange data with the mobile phone via Bluetooth, and after completing the measurement and exiting the probe, the probe will automatically connect to the mobile phone via Bluetooth without the need for a second manual connection;

Ø Drilling group continuous testing management technology:Multi hole continuous drilling and testing, unified data management, automatic intelligent judgment of drilling start and end process, automatic identification of blank zones and coal rock layers; Joint analysis of multiple boreholes to identify the causes of abnormal gas extraction in boreholes and determine the spatial location of the anomalies；

Ø The analysis software has powerful functions:

Ø Three dimensional spatial trajectory, flexible switching between two-dimensional horizontal projection curve and profile curve;

Ø The measured value curve of the measuring point is displayed through the linkage of the data table, and the deviation value is automatically calculated;

Ø The management of drilling group data is concise, with results displayed on the same screen and automatic recognition of blank areas;

Ø The results can be imported into Excel to generate chart reports, or imported into CAD for automatic graphics;

Ø One click issuance of Word report.

n Technical Specifications

YZGW12.8-T (Mining Drilling Trajectory - Gas Extraction Detector Tube)

Ø Coal Safety Mark: Intrinsic Safety Type

Ø Explosion proof mark: Exib I Ma

Ø Test tube pressure resistance: ≥ 12MPa

Ø Power supply mode: DC12.8V iron lithium polymer battery, continuous working time greater than 37 hours

Ø Controller: High performance microcontroller

Ø 3D electronic compass: inclination range: 90 °~90 °; Tilt angle accuracy of 0.1 °; Azimuth range 0 °~360 °; Azimuth accuracy of 0.5 °

Ø Gas concentration: measurement range0~100%Vol， Measurement accuracy ± 0.06% Vol, resolution0.01%Vol

Ø Pressure: Measurement Range0~120KPameasurement accuracy0.2%FS

Ø Propulsion method: stainless steel push rod manual propulsion

Ø Communication method: Bluetooth

Ø Measurement point interval: 1~60s adjustable

Ø Depth measurement range: unlimited

Ø Accuracy: ≤ 1m

Ø Size: Φ 20 × 690mm

Ø Quality: 760g

KT105A-S2 (mining intrinsically safe mobile phone)

Ø Coal Safety Mark: Intrinsic Safety Type

Ø Explosion proof mark: Exib I Mb

Ø Protection level: IP68

Ø Power supply mode: 3000mAh lithium polymer battery, continuous working time greater than 24 hours

Ø Processor: quad core 1.2GHz, 4GB RAM, 64GB ROM

Ø Sensors: gravity, light, distance sensors, electronic compass

Ø Photography: Rear 13 million pixels, front 2 million pixels, autofocus, supports 3096 × 4128 pixel photo shooting

Ø Display screen: 5.0-inch capacitive screen, multi touch, 1280 × 720 pixels

Ø Data functions: WIFI, Bluetooth Micro USB2.0

Ø Network: Full network

Ø Memory: 32GB storage card

Ø Dimensions: 158mm × 83mm × 16mm

Ø Quality: 245g

Stainless steel push rod

Ø Material: Stainless steel

Ø Dimensions: 12mm × 1000mm

Ø Quality: 120g

n Configuration List

n Display of collection software interface

Main functional interface single hole parameter configuration group hole project management

n Analysis software interface display

Parallel hole

Fan-shaped hole

Single hole measured trajectory and design trajectory shown in the same diagram

Drilling trajectory diagram

Methane concentration curve along the borehole

Negative pressure curve diagram of drilling and extraction along the way