A Coal Spontaneous Combustion Tester
A tester, coal spontaneous combustion technology, applied in fuel oil testing, instruments, measuring devices, etc., can solve the problems of difficult temperature control, uneven heating of coal samples, slow heating speed, etc., to improve the cooling system and reduce the amount of coal samples And the amount of heat transfer oil, the effect of improving the heating speed
Active Publication Date: 2019-12-03
XIAN UNIV OF SCI & TECH
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Problems solved by technology
[0003] The purpose of the present invention is to provide a coal spontaneous combustion tester to solve the problems of large oil consumption, slow heating speed, difficult temperature control and uneven heating of coal samples in the prior art
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[0019] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0020] Such as Figure 1-Figure 4 As shown, the embodiment provides a coal spontaneous combustion tester, including a coal sample tank 1, an oil circuit system, a temperature control system, a gas circuit system and a cooling system. The upper and lower ends of the coal sample tank 1 are respectively provided with a coal inlet 8 and a coal outlet, the coal inlet 8 is provided with a coal inlet cover 2, and the coal outlet is provided with a coal outlet cover 19; The oil pool 3, oil circuit and oil pump 42, the oil pool 3 is coated on the periphery of the coal sample tank 1, and the top and bottom of the oil pool 3 are fixedly connected with the side wall of the coal sample tank 1 respectively; the temperature control system includes a temperature probe 29, a temperature control Instrument 30, electric heating rod 32, temperature acquisition ...
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The invention relates to a coal spontaneous combustion tester to solve the problems of large amount of oil, slow heating rate, uncontrollable temperature and uneven coal sample heating. A coal inlet and a coal outlet are respectively formed in the upper and lower end parts of a coal sample tank, and an oil path system comprises an oil pool, an oil pump and an oil path which constitute a closed loop circuit; the oil pool is coated on the periphery of the coal sample tank, and the top and bottom of the oil tank are respectively connected with the side wall of the coal sample tank; a temperature control system comprises a temperature probe, a temperature controller, an electric heating rod, a temperature acquisition template, and a computer, and the temperature probe is arranged inside the tested coal sample and connected to the temperature controller; the temperature controller is connected with the electric heating rod, and the electric heating rod is positioned in the oil pool; the temperature probe is also connected with the temperature acquisition template, and the temperature acquisition template is connected with the computer; a gas path system comprises a gas cylinder, and the gas cylinder is communicated with the coal sample tank through a gas preheating pipeline; the gas preheating pipeline is positioned in the oil pool, and the coal sample tank is also communicated with a gas chromatograph; and the gas chromatograph is controlled by the computer.
Description
technical field [0001] The invention belongs to the field of coal performance testing, in particular to a coal spontaneous combustion tester. Background technique [0002] The existing oil-bath-type temperature-programmed experimental device for coal spontaneous combustion performance testing requires more coal samples, and the coal sample tank is placed in the oil pool for heating, so the oil consumption is large and the heating speed is slow. It also makes it difficult to control the temperature of the heat transfer oil and coal sample, and the coal sample is heated unevenly. At the same time, because the coal sample tank is placed in the oil pool and the heat transfer oil is not easy to take out, the steps in the process of loading and taking the coal sample are cumbersome and time-consuming, and the cooling speed of the coal sample is slow. . Contents of the invention [0003] The object of the present invention is to provide a coal spontaneous combustion tester to so...
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IPC IPC(8): G01N33/22
CPCG01N33/222
Inventor 刘长春雷昌奎马砺邓军张志鹏尹岚
Owner XIAN UNIV OF SCI & TECH