Determination of the calorific value of industrial hazardous waste/solid waste combustion How to detect the calorific value of solid waste?

There are three methods for testing the calorific value of solids and hazardous/waste:

Solid, hazardous/waste can be directly measured using an oxygen bomb calorimeter, or calculated according to the components or elemental compositions of the waste. The specific methods are as follows:

① Instrument measurement method. Measure with calorific value testing equipment. When the waste is heated under aerobic conditions until the water temperature around the oxygen bomb no longer rises, the heat added by the fixed volume of water at this time is the heat released by the quantitative waste combustion.

② Theoretical estimation method. The calorific value of solid waste is chemically called "heat of combustion", so the HH or HL of the waste can be theoretically estimated using elemental compositions (e.g. carbon, hydrogen, oxygen, etc.).

③ Elemental composition calculation method. There are many ways to calculate the calorific value of waste using elemental composition, the most common and simple is the Dulong formula, but because the error of this method in estimating the calorific value of waste is too large, the industry often uses the Wilson formula for estimation.

The above three methods, the instrument measurement method is accurate, that is, the use of special solid waste calorific value testing equipment for detection, the results are accurate and reliable.

The following parameters of solid waste calorific value testing equipment are as follows:

The fully automatic solid waste calorific value tester adopts reliable real-color intelligent LCD display end point, micro thermal printer, full Chinese touch operation menu, and the interface is easy and intuitive to operate. The instrument has the characteristics of high measurement accuracy, easy operation and reliable use. It is mainly used for the determination of the calorific value of combustible substances such as solid waste, coal, biomass particles, petroleum, aluminum-based powder, wood, and power fuel.

Functional characteristics of solid, hazardous/waste calorific value testing equipment

1. Hastelloy anti-halogen oxygen bomb is configured for high halogen samples with strong corrosiveness, strong volatility, hot topic value and high metal salt content. The oxygen bomb has the characteristics of fast heat transfer and easy disassembly

2. With oxygen bomb automatic identification and easy operation, it automatically determines the amount of water in the inner cylinder, automatically controls the water temperature, and automatically completes the experiment, providing high stability.

3. The whole process is easy to operate. After the experiment is completed, it is not necessary to refrigerate directly and wait for the start of the next experiment.

4, divided into microcontroller and computer two control methods for customers to choose, microcontroller control using true color intelligent LCD display end point, micro thermal printer, compact structure, can print data quickly and noiseless; computer control data storage is more convenient and can achieve data and upload.

5. The temperature control device has cooling and heating functions, which can fix the water temperature of the outer cylinder and achieve 24-hour uninterrupted operation without system calibration. It is completely unaffected by the ambient temperature, and all data is true and reliable. 

6. Stainless steel vacuum inner cylinder. The stirring system adopts the bottom electromagnetic stirring system, which automatically diagnoses whether the functional components of each department are normal and clearly prompts. 

7. The test speed is fast, and the test period is less than or equal to 15 minutes (GB/T213-2008).

8. Heat capacity stability < 0.2%, precision < 0.1%, temperature resolution 0.0001K.

9, the product has good performance and precision even in harsh environments.

10. Compact in size, made using molds, with high precision.

11. The repeatability and reproducibility of the calorific value test are better than the requirements of the national standard GB/T213-2008.

12. Support two ignition methods: ignition wire and cotton thread.

13. With data processing, report statistics and printing functions, it can be networked and connected to the balance, and can be controlled by two, four, and multiple (one computer can control eight hosts).

Technical parameters:

Temperature measurement range: 0~ 40 ° C (room temperature change should be ≤ 1 ° C for each measurement), relative humidity ≤ 85%

Temperature Resolution: 0.0001K Precision: < 0.1%

Test time: 6 minutes at the beginning of ignition to balance the water temperature. 9 minutes after ignition to test the main temperature. The whole experiment time is about 15 minutes.

Outer barrel capacity: 35L Inner barrel capacity: 2.1L 

Measurement accuracy: in line with standards, ignition voltage: 24V

Instantaneous power: < 500W Power supply: 220V ± 10V 

Host size: 660mm * 420mm * 500mm