Coal quality analysis system

Abstract

The utility model relates to the technical field of coal quality analysis, and provides a coal quality analysis system which comprises a constant temperature device, a preheating device, a first high temperature device, a second high temperature device and a sample transfer mechanism, the first preset temperature corresponds to the temperature required by coal sample moisture determination; the preheating device is suitable for being constantly kept at a second preset temperature, and the second preset temperature is higher than the first preset temperature; the first high-temperature device is suitable for being constantly kept at a third preset temperature, and the third preset temperature is higher than the second preset temperature; the second high-temperature device is suitable for being constantly kept at a fourth preset temperature, and the fourth preset temperature is higher than the third preset temperature; the sample transfer mechanism is used for transferring samples among the constant temperature device, the preheating device, the first high temperature device and the second high temperature device. According to the coal quality analysis system provided by the utility model, a new sample can be added at any time, so that the time consumed by heating and cooling can be saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to coal quality analysis technical field especially relates to a coal quality analysis system. BACKGROUND

[0002] In the coal quality analysis industry, the industrial analysis of coal generally needs to determine the moisture, ash and volatile matter in the coal sample, and the traditional measurement method needs to use a large number of manual operation steps, and the repeated weighing of the coal sample, the crucible transfer, the operation of different equipment and the processing of a large amount of data are all completed by manual operation, so that the industrial analysis work efficiency is low, the labor intensity is large, and the measurement accuracy is greatly affected by human factors.

[0003] An automatic measurement device is provided in the prior art, which comprises a moisture furnace, a constant temperature furnace, an ash high-temperature furnace and a volatile matter high-temperature furnace, the moisture furnace is used for testing the moisture in the coal sample; the constant temperature furnace is used for keeping the dryness of the coal sample to be tested; the ash high-temperature furnace is used for testing the ash in the coal sample to be tested; the volatile matter high-temperature furnace is used for testing the volatile matter in the coal sample to be tested, however, when testing the ash, the ash high-temperature furnace needs to be heated or cooled between different temperatures according to experimental requirements, and no sample can be added during the experiment, and the next experiment must be performed after the completion of the first experiment, so that the flexibility is poor, and the whole sample testing time is too long during batch experiments, which seriously affects the experimental efficiency. UTILITY MODEL CONTENT

[0004] The utility model provides a coal quality analysis system to solve the defect that the ash high-temperature furnace has poor flexibility in the prior art, by setting constant temperature device, preheating device, first high temperature device and second high temperature device, the heating device does not need to be heated or cooled between different temperatures according to experimental requirements, the experimental process between the sample in the determination and the newly added sample is independent of each other, and new samples can be added at any time during the experiment, so that the time consumed by heating and cooling can be saved.

[0005] The coal quality analysis system provided by the utility model comprises:

[0006] The constant temperature device is adapted to be constantly kept at a first preset temperature, and the first preset temperature corresponds to the temperature required for the moisture determination of the coal sample;

[0007] The preheating device is adapted to be constantly kept at a second preset temperature, and the second preset temperature is greater than the first preset temperature;

[0008] The first high temperature device is adapted to be constantly kept at a third preset temperature, and the third preset temperature is greater than the second preset temperature;

[0009] The second high temperature device is adapted to be constantly kept at a fourth preset temperature, and the fourth preset temperature is greater than the third preset temperature;

[0010] A sample transfer mechanism for transferring a sample between the constant temperature device, the preheating device, the first high temperature device, and the second high temperature device.

[0011] According to the coal quality analysis system, the constant temperature device comprises a first constant temperature furnace and a first weighing mechanism, the first constant temperature furnace is adapted to be constantly kept at a first preset temperature, and the first weighing mechanism is arranged in the first constant temperature furnace and used for weighing the sample.

[0012] According to the coal quality analysis system, the constant temperature device further comprises a first sample placing disc and a first lifting and rotating mechanism, the first sample placing disc is arranged in the first constant temperature furnace, the first lifting and rotating mechanism is connected with the first sample placing disc, and the first lifting and rotating mechanism is used for driving the first sample placing disc to rotate and / or lift.

[0013] A plurality of first mounting holes are arranged on the first sample placing disc, the first mounting holes are used for placing samples, the first weighing mechanism is arranged below the first sample placing disc and corresponds to positions of the first mounting holes, and the first weighing mechanism is adapted to lift the sample after passing through one of the first mounting holes, so as to weigh the sample.

[0014] According to the coal quality analysis system, the second high temperature device comprises a fourth constant temperature furnace and a second weighing mechanism, the fourth constant temperature furnace is adapted to be constantly kept at a fourth preset temperature, and the second weighing mechanism is arranged in the fourth constant temperature furnace and used for weighing the sample.

[0015] According to the coal quality analysis system, the preweighing device is used for preweighing the sample.

[0016] According to the coal quality analysis system, the second preset temperature is b, and the value range of the b is 200-400 DEG C.

[0017] According to the coal quality analysis system, the third preset temperature is c, and the value range of the c is 490-510 DEG C.

[0018] According to the coal quality analysis system, the fourth preset temperature is d, and the value range of the d is 805-825 DEG C.

[0019] According to the coal quality analysis system, the third high temperature device is adapted to be constantly kept at a fifth preset temperature, and the fifth preset temperature corresponds to a volatile matter determination temperature of the coal sample.

[0020] The coal quality analysis system provided by the utility model, through setting the constant temperature device, the preheating device, the first high temperature device and the second high temperature device, can disassemble each heating step in the coal quality ash determination, and the sample can be directly put into the preheating device for preheating after completing the moisture determination in the constant temperature device, so that the time consumed from the first preset temperature heating to the third preset temperature heating of the existing heating device can be saved, and the efficiency of the sample ash determination can be improved.

[0021] The coal quality analysis system provided by the utility model, through setting the constant temperature device, the preheating device, the first high temperature device and the second high temperature device, can disassemble each heating step in the coal quality ash determination, and the sample can be directly put into the preheating device for preheating after completing the moisture determination in the constant temperature device, so that the time consumed from the first preset temperature heating to the third preset temperature heating of the existing heating device can be saved, and the efficiency of the sample ash determination can be improved.

[0022] Compared with the prior art, the coal quality analysis system provided by the utility model, through setting the constant temperature device, the preheating device, the first high temperature device and the second high temperature device, so that the heating device does not need to be heated or cooled between different temperatures according to the experimental requirements in the ash determination process, the time consumed by heating and cooling can be saved, and the overall efficiency of the experiment can be greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical scheme in the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0024] Figure 1 It is the principle schematic view of the coal quality analysis system provided by the utility model embodiment.

[0025] Figure 2 It is the structure schematic view of the constant temperature device provided by the utility model embodiment.

[0026] Figure 3 It is the layout schematic view of the first mounting hole provided by the utility model embodiment.

[0027] Figure 4 is a layout schematic diagram of the furnace door.

[0028] Reference signs:

[0029] 100: constant temperature device; 110: first constant temperature furnace; 120: first weighing mechanism; 130: first lofting disc; 131: first mounting hole; 140: first lifting and rotating mechanism; 150: sample; 200: preheating device; 300: first high temperature device; 400: second high temperature device; 500: third high temperature device; 600: furnace door; 700: furnace door driving mechanism. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical scheme and advantages of the utility model clearer, the technical scheme in the utility model will be described clearly and completely below in combination with the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0031] In the description of the embodiments of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0032] In the embodiments of the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0033] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Also, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, the person skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples without contradiction.

[0034] In the coal quality analysis industry, the traditional industrial analysis of coal generally sets up a water ash testing furnace and a volatile testing furnace. The following shows the main steps of coal quality analysis in the prior art.

[0035] Moisture determination: The water ash testing furnace is used to test the moisture and ash of the sample. The sample is placed in the water ash testing furnace at room temperature, air is introduced into the instrument according to the national standard, the furnace temperature is raised to 105℃-110℃ at a rate required by the national standard, and the temperature is continuously heated for 60min at this temperature. Check the drying, weigh the hot sample every 10min, but the sample temperature should be kept at 105℃-110℃, and the weighing accuracy should be 0.0002℃. Until the sample mass change is not more than 0.0005g for 10min, or the sample mass is significantly increased, the moisture determination test is ended; in the former case, the last weighing data is used as the basis for calculation; in the latter case, the weighing data before the weight increase is used as the basis for calculation.

[0036] Ash determination: After the moisture determination is completed, oxygen is introduced, the flow rate is controlled at 30-60 times per hour, or dry air is introduced, the flow rate is controlled at 60-120 times per hour. At the same time, the furnace temperature is raised to 500℃±10℃ within not less than 30min, and kept at this temperature for 30min, then the furnace temperature is raised to 815℃±10℃ at a rate of 40-50℃ / min, and burned for 60min at this temperature. Check the burning every 10min, weigh the hot sample (either directly weigh the sample in the furnace or weigh the sample after being removed from the furnace, but the sample temperature should be kept at 100℃ or above), and the weighing accuracy should be 0.0002g, until the sample mass change is not more than 0.0005g for 10min continuously, the ash determination test is ended, and the last weighing data is used as the basis for calculation.

[0037] Volatile matter determination: the sample loaded crucible with cover is sent into 900℃±10℃ constant temperature zone, and heated accurately for 7 minutes, and then cooled in 100℃-110℃ constant temperature box, the mass of sample crucible is automatically weighed by the instrument, and the weighing is accurate to 0.0002g, when the crucible is just put in, the furnace temperature will decrease, but the furnace temperature should be recovered to 900℃±10℃ within 3 minutes, and the furnace temperature should be kept at 900℃±10℃ all the time, otherwise the test result is invalid, and the heating time includes the temperature recovery time.

[0038] The above is the test process of the traditional instrument method industrial analysis, and the method has the following problems.

[0039] 1. The water ash furnace must be heated from room temperature, whether it is a sample or multiple samples, it must be started from room temperature, and after each experiment is completed, it must be reduced to room temperature to perform the next test.

[0040] 2. Multiple samples are required to perform the experiment, and samples cannot be added during the experiment, and the test cannot be performed at any time, and the next experiment must be performed after the completion of the experiment, and the flexibility is poor, and in the batch experiment process, the test time of the whole sample is too long, and the experimental efficiency is seriously affected.

[0041] 3. The ash content test requires that the heating device is heated from 105 degrees to 500 degrees and then kept constant within 30 minutes, and the whole sample test time is relatively long.

[0042] 4. The test result of the ash content is weighed at 815℃, and the thermal weight buoyancy effect exists, which has a certain influence on the test result.

[0043] 5. The balance for weighing moisture, ash and volatile matter is different, and the reference is different, which has a certain influence on the result.

[0044] Figure 1 It is a principle schematic diagram of the coal quality analysis system provided by the embodiment of the utility model.

[0045] The embodiment of the utility model provides a coal quality analysis system, and aims at solving at least one of the above technical problems. Figure 1 The coal quality analysis system provided by the embodiment comprises a constant temperature device 100, a preheating device 200, a first high temperature device 300, a second high temperature device 400 and a sample transfer mechanism, the constant temperature device 100 is adapted to be kept at a first preset temperature, the first preset temperature corresponds to the temperature required for coal sample moisture determination, specifically, the first preset temperature is a, wherein the value range of a is 105℃-110℃, for example, the first preset temperature can be set to 105℃, 107℃, 108℃ or 110℃, and the constant temperature device 100 is used for determining the moisture of the sample 150.

[0046] The preheating device 200 is adapted to be kept at a second preset temperature which is greater than the first preset temperature, and the preheating device 200 is used for preheating the sample 150 so as to reach 500 DEG C which needs to be kept for half an hour in the ash test in a short time, and specifically, the second preset temperature is b, wherein b is in a range of 200 DEG C to 400 DEG C, for example, the second preset temperature can be set to 200 DEG C, 250 DEG C, 300 DEG C, 350 DEG C or 400 DEG C, and preferably, the second preset temperature is 300 DEG C, and the second preset temperature is set in the range, which is beneficial to preheat the sample 150 and can ensure that the organic sulfur can be released and the accuracy of the experimental results can be improved.

[0047] The first high-temperature device 300 is adapted to be kept at a third preset temperature which is greater than the second preset temperature, and specifically, the third preset temperature is c, wherein c is in a range of 490 DEG C to 510 DEG C, for example, the second preset temperature can be set to 490 DEG C, 495 DEG C, 500 DEG C, 505 DEG C or 510 DEG C, and preferably, the second preset temperature is 500 DEG C, and the third preset temperature corresponds to the temperature which needs to be kept for half an hour in the ash test process.

[0048] The second high-temperature device 400 is adapted to be kept at a fourth preset temperature which is d, wherein d is in a range of 805 DEG C to 825 DEG C, for example, the fourth preset temperature can be set to 805 DEG C, 810 DEG C, 815 DEG C, 820 DEG C or 825 DEG C, and the fourth preset temperature corresponds to the highest temperature in the ash test. The sample transfer mechanism is used for transferring the sample 150 between the constant-temperature device 100, the preset device, the first high-temperature device 300 and the second high-temperature device 400, and specifically, the sample transfer mechanism can adopt an existing mechanical arm or the like structure.

[0049] The working principle of the coal quality analysis system provided in the embodiment is shown as follows.

[0050] The sample 150 which is weighed in advance is placed in the constant-temperature device 100, and the moisture content result is tested according to the national standard; the sample 150 after the moisture content test is transferred to the preheating device 200 by the sample transfer mechanism for preheating treatment, and after the preheating treatment is completed, the sample 150 is transferred to the first high-temperature device 300 by the sample transfer mechanism, and is kept for half an hour in the first high-temperature device 300 according to the national standard, after the step is completed, the sample 150 is transferred to the second high-temperature device 400 by the sample transfer mechanism to complete the preliminary test according to the national standard, and after the test is completed, the sample 150 is weighed again, and then the ash content result is obtained.

[0051] Referring to Figure 1It can be understood that the coal quality analysis system provided by the embodiment of the utility model, through setting constant temperature device 100, preheating device 200, first high temperature device 300 and second high temperature device 400, so that each heating step in the determination of coal ash can be disassembled, sample 150 can be directly put into preheating device 200 for preheating after completing moisture determination in constant temperature device 100, the time consumed from heating from first preset temperature to third preset temperature in the prior heating device can be saved, and the efficiency of ash determination of sample 150 can be improved.

[0052] Compared with the prior art, the coal quality analysis system provided by the embodiment of the utility model, through setting constant temperature device 100, preheating device 200, first high temperature device 300 and second high temperature device 400, so that the heating device does not need to be heated or cooled between different temperatures according to experimental requirements in the ash testing process, the time consumed by heating and cooling can be saved, and the overall efficiency of the experiment can be greatly improved.

[0053] Figure 2 It is the structure schematic view of constant temperature device provided by the embodiment of the utility model.

[0054] Refer to Figure 2 In the optional embodiment of the utility model, constant temperature device 100 includes first constant temperature furnace 110 and first weighing mechanism 120, and first constant temperature furnace 110 is adapted to keep at first preset temperature, specifically, first constant temperature furnace 110 can adopt existing devices such as electric heating furnace; first weighing mechanism 120 is used for weighing sample 150, and first weighing mechanism 120 can adopt existing weighing devices such as balance.

[0055] The working principle of the coal quality analysis system provided by the embodiment is shown below.

[0056] The pre-weighed sample 150 is placed into the constant temperature device 100, and the moisture determination is carried out according to the national standard, wherein, the sample 150 can be checked and dried by the first weighing mechanism 120, and specifically, the hot sample 150 is weighed by the weighing device every 10 minutes, and the weighing is accurate to 0.0002℃. Until the mass of the sample 150 changes by not more than 0.0005g every 10 minutes, or the mass of the sample 150 is obviously increased, the moisture determination test is ended; in the former case, the last weighing data is used as the calculation basis, and in the latter case, the weighing data before the weight increase is used as the calculation basis.

[0057] After the moisture determination of the sample 150 is completed, the sample 150 is transferred to the preheating device 200 by the sample transfer mechanism for preheating treatment, and after the preheating treatment is completed, the sample 150 is transferred to the first high-temperature device 300 by the sample transfer mechanism, and is kept for half an hour in the first high-temperature device 300 according to the national standard, and after the step is completed, the sample 150 is transferred to the second high-temperature device 400 by the sample transfer mechanism, and the preliminary test is completed according to the national standard, and after the test is completed, the sample 150 is transferred to the constant temperature device 100 again, and is weighed by the first weighing mechanism 120 again, so as to obtain the ash content result.

[0058] Referring to Figure 1 and Figure 2 It can be understood that the coal quality analysis system provided by the embodiment of the utility model can ensure that the original weight of the moisture determination and the ash content determination is weighed by the same first weighing mechanism 120, and the weight of the final result is also weighed by the same first weighing mechanism 120 in the same environment, so that the error caused by different weighing mechanisms and external environmental factors can be eliminated, and the test result is more reliable. In addition, the final weighing of the ash content determination is weighed in the first constant temperature furnace 110, so that the thermal buoyancy effect can be greatly reduced, the weighing is more accurate, and the calculation result is more reliable.

[0059] Figure 3 It is the layout schematic view of the first mounting hole provided by the embodiment of the utility model.

[0060] Referring to Figure 2 and Figure 3In the optional embodiment of the utility model, the constant temperature device 100 further includes a first lofting disc 130 and a first lifting and rotating mechanism 140, the first lofting disc 130 is arranged in the first constant temperature furnace 110 and is located on the first lifting and rotating mechanism 140, the first lifting and rotating mechanism 140 is connected with the first lofting disc 130, the first lifting and rotating mechanism 140 is used to drive the first lofting disc 130 to rotate or lift, the first lifting and rotating mechanism 140 can be obtained by combining the rotating motor and telescopic cylinder in the prior art, and the design standard is met, and the utility model embodiment is not repeated in detail.

[0061] A plurality of first mounting holes 131 are arranged on the first lofting disc 130, the first mounting holes 131 are arranged around the rotation center of the first lofting disc 130, the number of the first mounting holes 131 can be adaptively set according to actual conditions, the first mounting holes 131 are used to place the sample 150, the first weighing mechanism 120 is arranged below the first lofting disc 130 and corresponds to the positions of the first mounting holes 131, and the first weighing mechanism 120 is used to lift the sample 150 after passing through one of the first mounting holes 131, so that the sample 150 is weighed.

[0062] Specifically, the first lofting disc 130 is installed on the first lifting and rotating mechanism 140 and rotates around the shaft center driven by the first lifting and rotating mechanism 140, when receiving the sample 150, one of the first mounting holes 131 of the first lofting disc 130 is rotated to the position of the furnace door 600, and the first lofting disc 130 is continuously rotated after lofting; conversely, when the sample 150 is transferred out, the first lifting and rotating mechanism 140 drives the first lofting disc 130 to send the sample 150 to be transferred out to the furnace door 600, and the sample transfer mechanism transfers the sample 150 to another specified station.

[0063] The diameter of the first mounting hole 131 matches the diameter of the container for placing the sample 150, in the weighing process, the first lifting and rotating mechanism 140 drives the first lofting disc 130 to descend, the weighing rod of the first weighing mechanism 120 is adapted to pass through one of the first mounting holes 131 and then lift the container for placing the sample 150, and the weight of the container and the sample 150 is completely transferred from the first lofting disc 130 to the first weighing mechanism 120, so that the accurate mass of the sample 150 can be obtained through the peeling weighing.

[0064] It can be understood that, in the embodiment of the utility model, through setting first lofting disc 130, and setting a plurality of first mounting hole 131 on first lofting disc 130, and through first lifting rotary mechanism 140 drive first lofting disc 130 to carry out lifting or rotary motion, in this way, on the one hand, it can facilitate the weighing of first mechanism to sample 150, on the other hand, a plurality of first mounting hole 131 do not affect each other, when needing to determine new sample 150, can open furnace door 600 at any time, add test sample, do not need to wait, can guarantee the test result in the shortest time, it is favorable to improve the efficiency of the whole experiment.

[0065] In the optional embodiment of the utility model, the preheating device 200 includes a second constant temperature furnace, a second lofting disc and a second lifting rotary mechanism; the first high temperature device 300 includes a third constant temperature furnace, a third lofting disc and a third lifting rotary mechanism; the second constant temperature furnace, the second lofting disc, the second lifting rotary mechanism, the third constant temperature furnace, the third lofting disc and the third lifting rotary mechanism are approximately set as the first constant temperature furnace 110, the first lofting disc 130 and the first lifting rotary mechanism 140, specifically, reference can be made to the foregoing, and the embodiment of the utility model will not be described here.

[0066] In the optional embodiment of the utility model, the second high temperature device 400 includes a fourth constant temperature furnace, a fourth lofting disc, a fourth lifting rotary mechanism and a second weighing mechanism, the fourth constant temperature furnace is adapted to be constantly kept at a fourth preset temperature, the second weighing mechanism is arranged in the fourth constant temperature furnace, and the second weighing mechanism is used for weighing the sample 150; the fourth constant temperature furnace, the fourth lofting disc, the fourth lifting rotary mechanism and the second weighing mechanism are approximately set as the first constant temperature furnace 110, the first lofting disc 130, the first lifting rotary mechanism 140 and the first weighing mechanism 120, specifically, reference can be made to the foregoing, and the text will not be described here.

[0067] It can be understood that, in the embodiment of the utility model, through setting the second weighing mechanism, it can facilitate the checking burning, specifically, when the sample 150 is in the fourth constant temperature furnace, the sample 150 is weighed by the second weighing mechanism every 20 minutes until the mass change after continuous two sides burning is not more than 0.0010g, and the mass after the last side burning is taken as the basis for calculation, it should be noted that when the ash content is less than 15.00%, the checking burning can not be carried out.

[0068] In the optional embodiment of the utility model, the coal quality analysis system further comprises a pre-weighing device, before the sample 150 is sent into the constant temperature device 100, the sample 150 can be pre-weighing processed through the pre-weighing device, that is, the mass of the sample 150 is weighed in advance, it can be understood that the moisture of the sample 150 will gradually lose under high temperature, in order to avoid affecting the moisture determination of the sample 150, in the prior art, the heating device needs to be cooled to normal temperature first, then the sample 150 is sent into the heating device for weighing, the pre-weighing device provided in the embodiment can weigh the mass of the sample 150 in advance, in this way, the heating device does not need to repeatedly heat or cool, based on the constant temperature device 100 arranged in the foregoing embodiment, after the first heating, the experiment can not be cooled again, the disadvantage that the water-cement experiment needs to be cooled to normal temperature each time to carry out the next experiment is completely solved, the experiment time is shortened, and the efficiency is higher. In addition, based on the cooperation of the pre-weighing device and the constant temperature device 100, the samples 150 put into the constant temperature device 100 in different time periods will not affect each other, when the sample 150 needs to be determined, the furnace door 600 can be opened at any time, the test sample is added, and waiting is not needed, the test result can be ensured to be obtained in the shortest time, and the efficiency of the overall experiment is improved.

[0069] Continuing to refer to Figure 1 In the optional embodiment of the utility model, the coal quality analysis system further comprises a third high temperature device 500, the third high temperature device 500 is adapted to be constantly kept at a fifth preset temperature, the fifth preset temperature corresponds to the temperature required for the determination of the volatile matter of the coal sample, the fifth preset temperature is e, wherein the value range of e is 890 DEG C ~ 910 DEG C, for example, the fifth preset temperature can be set to 890 DEG C, 895 DEG C, 900 DEG C, 905 DEG C or 910 DEG C, preferably, the fifth preset temperature is set to 900 DEG C.

[0070] The working principle of the third high temperature device 500 in the embodiment is shown below.

[0071] The sample 150 dried to constant mass is transferred into the third high temperature device 500 through a sample transfer mechanism, nitrogen is introduced into the third high temperature device 500 according to the national standard, so as to keep the inert atmosphere inside the third high temperature device 500, after accurate heating for 7 minutes, the sample 150 is transferred into the constant temperature device 100 through the sample transfer mechanism for weighing, it needs to be explained that when the sample 150 is placed in the third high temperature device 500, the third high temperature device 500 should be restored to 900 DEG C ± 10 DEG C within 3 minutes and kept at 900 DEG C ± 10 DEG C, otherwise the experiment is invalid.

[0072] It can be understood that the coal quality analysis system provided by the embodiment of the utility model, through setting third high temperature device 500, based on preceding constant temperature device 100 and pre-weighing device, like this can be used for volatile matter determination, in addition, with preceding moisture determination and ash determination same is, three last weighing all in constant temperature device 100, like this, can guarantee moisture, ash and volatile matter weighing original weight adopts same balance weighing, last result weight also adopts same balance same environment weighing, same base, can eliminate the error caused by different balance and external environment factor, make the test result more secure.

[0073] In the optional embodiment of the utility model, the third high temperature device 500 includes a fifth constant temperature furnace, a fifth sample placing plate and a fifth lifting mechanism, the fifth sample placing plate is arranged in the fifth constant temperature furnace, the fifth lifting rotating mechanism is connected with the fifth sample placing plate, and the fifth lifting rotating mechanism is used to drive the fifth sample placing plate to rotate or lift, and the fifth constant temperature furnace, the fifth sample placing plate and the fifth lifting mechanism are similar to the first constant temperature furnace 110, the first sample placing plate 130 and the first lifting mechanism, and specific arrangement can be referred to the preceding description.

[0074] It can be understood that, in the embodiment, by setting the fifth constant temperature furnace, the fifth sample placing plate and the fifth lifting mechanism, in the process of volatile matter determination, after the first temperature rise, the whole day experiment can not need to be cooled again, and the disadvantage that each volatile matter determination needs to be cooled to normal temperature to perform the next experiment is completely solved, the experiment time is shortened, and the efficiency is higher. In addition, the weighing data of the sample 150 for the final result is weighed in the constant temperature device 100, the thermal gravity buoyancy effect can be eliminated, and the result is more accurate.

[0075] Figure 4 It is the layout schematic diagram of the furnace door provided by the embodiment of the utility model.

[0076] In the optional embodiment of the utility model, a small furnace door 600 and a furnace door driving mechanism 700 can be arranged on each constant temperature furnace, so that when the sample 150 needs to be added, the furnace door 600 can be opened at any time, and the sample can be added without waiting, so that the test result can be ensured to be obtained in the shortest time. In addition, the small furnace door 600 can also reduce the temperature field change caused by opening the door, and the temperature control is more accurate, so that the experimental result is effectively ensured.

[0077] It should be noted that the technical solutions in the various embodiments of the utility model can be combined with each other, but the combination of the technical solutions is based on the fact that the ordinary skilled person in the art can realize it; when the combination of the technical solutions is contradictory or unachievable, it should be considered that the combination of the technical solutions does not exist, that is, it is not within the protection scope of the utility model.

[0078] It should be finally pointed out that: the above examples are only used to illustrate the technical solutions of the utility model, and not to limit them; although the utility model has been explained in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement to part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the utility model.

Claims

1. A coal quality analysis system, characterized by, The application relates to a coal sample moisture and volatile matter determination device. The device comprises: a constant temperature device (100) adapted to be constantly kept at a first preset temperature corresponding to the temperature required for coal sample moisture determination; a preheating device (200) adapted to be constantly kept at a second preset temperature greater than the first preset temperature; a first high-temperature device (300) adapted to be constantly kept at a third preset temperature greater than the second preset temperature; a second high-temperature device (400) adapted to be constantly kept at a fourth preset temperature greater than the third preset temperature; 2. The coal quality analysis system of claim 1, wherein, a sample transfer mechanism for transferring a sample (150) between the constant temperature device (100), the preheating device (200), the first high-temperature device (300) and the second high-temperature device (400).

3. The coal quality analysis system of claim 2, wherein, The constant temperature device (100) comprises a first constant temperature furnace (110) adapted to be constantly kept at a first preset temperature and a first weighing mechanism (120) arranged in the first constant temperature furnace (110) and used for weighing the sample (150). The constant temperature device (100) further comprises a first sample placing disc (130) arranged in the first constant temperature furnace (110) and a first lifting and rotating mechanism (140) connected with the first sample placing disc (130) and used for driving the first sample placing disc (130) to rotate and / or lift; 4. The coal quality analysis system of claim 1, wherein the first sample placing disc (130) is provided with a plurality of first mounting holes (131) for placing the sample (150), the first weighing mechanism (120) is arranged below the first sample placing disc (130) and corresponds to the positions of the first mounting holes (131), and the first weighing mechanism (120) is adapted to lift the sample (150) after passing through one of the first mounting holes (131) so as to weigh the sample (150).

5. The coal quality analysis system of claim 1, wherein The second high-temperature device (400) comprises a fourth constant temperature furnace adapted to be constantly kept at a fourth preset temperature and a second weighing mechanism arranged in the fourth constant temperature furnace and used for weighing the sample (150).

6. The coal quality analysis system according to any one of claims 1 to 5, characterized by, The device further comprises a pre-weighing device used for pre-weighing the sample (150).

7. The coal quality analysis system according to any one of claims 1 to 5, characterized by, The second preset temperature is b, wherein the value range of the b is 200-400 DEG C.

8. The coal quality analysis system according to any one of claims 1 to 5, characterized by, The third preset temperature is c, wherein the value range of the c is 490-510 DEG C.

9. The coal quality analysis system according to any one of claims 1 to 5, characterized by, The fourth preset temperature is d, wherein the value range of the d is 805-825 DEG C. The device further comprises a third high-temperature device (500) adapted to be constantly kept at a fifth preset temperature corresponding to the volatile matter determination temperature of the coal sample.

10. The coal quality analysis system of claim 9, wherein, The third high-temperature device (500) comprises a fifth constant-temperature furnace, a fifth laying-out disc and a fifth lifting-rotating mechanism, the fifth laying-out disc is arranged in the fifth constant-temperature furnace, the fifth lifting-rotating mechanism is connected with the fifth laying-out disc, and the fifth lifting-rotating mechanism is used for driving the fifth laying-out disc to perform rotating movement and / or lifting movement.

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