Coal True Relative Density Tester

Function and Performance Requirements of Coal True Relative Density Tester:
The fully automatic coal true relative density tester is primarily used to determine the true relative density of coal. This equipment has the following features:
2.1 Fully automated and intelligent operation, avoiding errors caused by manual handling;
2.2 High testing accuracy, solving the problem of sample dissolution in the immersion method, with superior precision significantly better than the liquid pycnometer method;
2.3 The testing process does not alter the physical properties of the sample, and the sample remains intact after testing, allowing it to be used for other tests; *2.4 "Bottom-loading" sample cell installation method, improving the utilization of the test chamber volume and enhancing testing accuracy; 2.5 Automatic restoration to atmospheric pressure after testing to prevent sample splashing; 2.6 Clear and intuitive graphical control interface, allowing all hardware control operations on the interface; *Stability: even in the event of unexpected power outages or disconnections, current data will not be lost, and the experiment can be resumed; *2.8 Valve type: Pneumatic control valve, fundamentally eliminating changes in the reference chamber volume caused by heat from the operation of solenoid valves in similar instruments, eliminating the need for software correction; the instrument requires no preheating upon startup and can be used directly for testing; 2.9 Automatic memory of the last test settings, automatically applying the previous settings; 2.10 The instrument is equipped with chip memory function, achieving zero configuration of hardware parameters by the user; 2.11 Detailed instrument operation log, with timestamps down to the second, providing assurance for the reliable operation and after-sales service of the instrument; 2.12 Comprehensive operational help prompts; 2.13 INTERNET remote control function; *2.14 Instrument accessories: Valves and pressure sensors are fully imported.
3. Main Configuration of the Coal True Relative Density Tester (including but not limited to the following): 3.1 Test main unit: 1 unit; 3.2 Data acquisition and analysis workstation (including data acquisition and processing software): 1 unit; 3.3 Printer: 1 unit; 3.4 Electronic balance: 1 unit; 3.5 Temperature-controlled constant temperature water bath: 2 units; 3.6 Density bottles: 100 units; 3.7 Adjustable temperature electric furnace: 1 unit; 3.8 Standard gas: 1 cylinder; 3.9 Density measurement accessories: 1 set.
4. Main Technical Parameters of the Coal True Relative Density Tester: 4.1 Test main unit: (1) Testing principle: Gas expansion displacement method; (2) Testing accuracy: Better than ±0.04%, repeatability better than ±0.02%, resolution: ≤0.0001g/ml; (3) Testing volume range: 0.01~2000ml; (4) Testing speed: Single station completes the entire testing process in 1-2 minutes; (5) Number of analysis stations: Model 3H-2000TD1: 1 analysis station, testing one sample at a time; (6) Automatic repeat testing: Can automatically perform repeat tests until accuracy is achieved; (7) Applicable scope: No limitation on sample density; can test various solid samples such as powders, granules, blocks, foams, as well as slurry substances and non-volatile liquids; (8) Sample cell volume: Standard configuration includes three sample cells of different sizes (10ml, 50ml, 150ml); (9) Sample cell installation method: Bottom-loading; the sample cell directly serves as the sample testing chamber, offering high utilization of the sample testing chamber volume, thereby improving testing accuracy; the "bottom-loading bayonet" sample cell can meet the needs of large-volume sample loading to enhance testing accuracy. (10) Reference chamber: Each analysis station has one built-in reference chamber and one expansion chamber; the expansion chamber can improve testing accuracy for different sample cell volumes; the program automatically selects whether to enable the expansion chamber based on the sample cell volume; (11) Pressure equilibrium time: Three modes of pressure equilibrium time—automatic default, user selection, and user customization—to accommodate samples with different structural states; (12) Pressure range: 0-1 bar. Users can customize the maximum pressure to reduce errors caused by pressure-induced deformation of the sample; (13) Self-check process: Advanced intelligent self-check process, intelligently determining whether the sample cell is leaking and whether the instrument's air tightness is qualified, solving human operational errors; (14) Instrument dimensions: ≤610×450×550mm; (15) Instrument weight: ≤25kg.
4.2 Data acquisition and analysis workstation (including data acquisition and processing software): Mainstream brand computer, with: CPU of I5 series or above 4-core processor, memory ≥8G, hard drive ≥1T, optical drive: DVDRW, dedicated graphics card (video memory ≥G), 19-inch widescreen LCD;
4.3 Printer: Laser black and white printer, A4 size, high resolution 1200x1200dpi, with network printing capability and automatic duplex printing function; 4.4 Electronic balance: Maximum capacity: ≥110g, precision ≤0.0001g, pan size: ≥80mm, with four-level shock resistance, automatic calibration system, temperature compensation, built-in calibration weight function, and 232 or 485 interface for communication with the computer; 4.5 Temperature-controlled constant temperature water bath: ≥2 holes, temperature control range from room temperature to 100°C, temperature control accuracy ±0.5°C; 4.6 Density bottle: With ground glass capillary stopper, volume 60ml; 4.7 Adjustable temperature electric furnace: Adjustable temperature in steps, power ≤5kw; 4.8 Standard gas: 40L high-purity helium cylinder, purity ≥99.999%, with factory calibration certificate and equipped with a gas pressure reducing valve; 4.9 Density measurement accessories: 1 set of sieves (1mm square hole sieve, 10mm round hole sieve), 2 thermometers (0-100°C, graduation 0.5°C), 2 net spoons (made of 3mm×3mm mesh), 2 glass plates (300mm×300mm), 2Kg paraffin (melting point 50-60°C), 1 bottle of sodium dodecyl sulfate, 5 large pipettes (10ml, with rubber bulb), 5 small pipettes (1ml, with rubber bulb), 1 reagent bottle (2500ml); 2 glass rods; 2 evaporating dishes; 2 desiccators; 5 bottles of color-changing silica gel.

Zhengzhou Aidi produces Coal True Relative Density TesterSupplies coal drill cuttings desorption instrument, deep hole sampling device, pressure measuring instrument, geological exploration desorption instrument, borehole flow meter, mine extraction and outburst prevention equipment, coal true density measuring instrument, gas content measuring instrument, automatic gas emission initial velocity measuring instrument, diffusion velocity measuring instrument, coal extraction pipeline gas parameter instrument