Microcomputer-based Colloidal Layer Tester

Product Introduction

The microcomputer plastometer is used to determine the plastometer indices of bituminous coal and thereby describe the characteristics of coke, as well as to assess the quality of coking coal, production coal, and commercial coal. It is an essential laboratory equipment for coal preparation plants and coking plants.

Scope of Application

This specialized device is suitable for measuring the plastometer indices of bituminous coal (including three indicators: plastometer thickness Y, contraction X, and volume curve). It complies with the requirements of GB/T479 "Method for Determination of Plastometer Indices of Bituminous Coal." The JC-9 microcomputer plastometer features a user-friendly design, integrating current computer software control technology to achieve automatic measurement and automatic plotting, significantly reducing operational difficulty. With high measurement accuracy, simple and convenient operation, and stable performance, it is widely applicable in coal quality testing departments of industries such as coal, metallurgy, and coking.

Technical Parameters

1. Temperature display range: 0-999°C, resolution 0.1°C, equipped with K-type thermocouple.

2. Time display range: 0-999min, resolution 0.1min.
3. Operating environment: 5-40°C, relative humidity ≤80%.
4. Heating control: reaches 250°C in 30 minutes, and 3°C per minute between 250°C and 730°C.
5. Time display error: not more than 10 seconds within 24 hours.
6. Continuous operation time: 24 hours.
7. Cold junction compensation: 0°C - 60°C.
8. Pressure sensor: (0～20)Kg.
9. Displacement sensor: (0～200)mm.
10. Power supply voltage: 220V (±10%), 50Hz.
11. Load power: ≤5KW.
12. Automatic alarm every 10 minutes after 250°C to remind recording of plastometer data.
13. Dimensions (mm): main unit: 800×400×580mm;

Controller (L×W×H): 330×290×120mm.
14. Weight: 150kg.

Instrument Features

1. Complies with GB/T479-2000 "Method for Determination of Plastometer Indices of Bituminous Coal."

2. Two-way communication between the computer and controller for monitoring and controlling the equipment.

3. Capable of simultaneously controlling dual furnaces (front and rear furnaces) or individually controlling the front furnace.

4. Automatically plots volume curves for single or dual furnaces and temperature curves over time.

5. Uses displacement sensors to replace drum clocks, enabling real-time display of X volume curve trends and calculations on the computer screen.

6. Manual control of plastometer data, input and saved via computer, with subsequent data analysis and processing by the computer to calculate the thickness Y value of the plastic layer, automatically plotting upper and lower plastometer curves and calculating plastometer thickness.

7. Automatically records furnace temperatures every ten minutes, with alarms every 10 minutes after 250°C.

8. Automatically calculates test results and prints test records and reports.

9. Features automatic recovery function; after instantaneous power failure, the instrument resumes operation from the pre-interruption state upon power restoration.

10. High measurement accuracy; automatic compensation for cold junction temperature of thermocouples, correction for thermocouple nonlinearity, and automatic compensation for all potential error sources in the temperature measurement system, ensuring temperature display error not exceeding ±3°C.

11. Stores historical test data for query and printing.