Coal quality analyzer

Abstract

The coal quality analyzer comprises a heating analysis unit and a flue gas treatment unit, the flue gas treatment unit comprises a box body, a gas inlet pipe and a fan, liquid for absorbing irritant gas in flue gas is contained in the box body, and the gas inlet pipe is communicated with the heating analysis unit and the box body; the fan is used for conveying flue gas generated by the heating analysis unit into the box body through the gas inlet pipe. According to the coal quality analyzer, the flue gas treatment unit is arranged at the tail part of the heating analysis unit, the fan enables flue gas to be conveyed to the box body through the gas inlet pipe, and liquid contained in the box body can absorb irritant gas in the flue gas, so that the irritant gas generated in the coal sample analysis process is prevented from being discharged into the environment to cause harm to the body health of operators; the environment pollution is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of coal sample analysis, and in particular to a coal quality analyzer. Background Art

[0002] To determine the moisture and volatile content of a coal sample, the sample must be heated to evaporate the moisture or fully release the volatiles. To determine the ash content, the sample must be fully incinerated. Existing coal analyzers produce black smoke and a pungent odor when measuring volatile content, while ash testing produces highly irritating gases such as sulfur dioxide.

[0003] Most of the coal quality analyzers currently sold on the market directly discharge the flue gas they generate without taking any effective environmental protection measures, which is detrimental to the health of operators and pollutes the atmospheric environment. Utility Model Content

[0004] The utility model provides a coal quality analyzer to solve the technical problem that irritating gases in the flue gas generated in the coal sample analysis process in the prior art are harmful to health and pollute the environment.

[0005] In order to achieve the above-mentioned purpose, the technical solution provided by the present utility model is as follows:

[0006] The utility model provides a coal quality analyzer, including a heating and analyzing unit and a flue gas treatment unit. The flue gas treatment unit includes a box, an air intake pipe and a fan. The box contains a liquid that absorbs irritating gases in the flue gas. The air intake pipe connects the heating and analyzing unit with the box. The fan is used to transport the flue gas generated by the heating and analyzing unit into the box through the air intake pipe.

[0007] Furthermore, the fan is installed at the exhaust port of the box.

[0008] Furthermore, the air inlet pipe includes a pipe body and an air outlet plate arranged at one end of the pipe body, and the end of the air inlet pipe where the air outlet plate is arranged extends into the liquid in the box; a plurality of air holes are formed on the air outlet plate.

[0009] Furthermore, the plurality of vent holes are evenly distributed on the vent plate.

[0010] Furthermore, the heating analysis unit includes a crucible, a sample placement plate, a heating furnace, a lifting and rotating mechanism, and a weighing mechanism. The crucible is placed in the sample placement plate, the sample placement plate is installed on the top of the lifting and rotating mechanism, and the top of the lifting and rotating mechanism extends into the heating furnace to heat the coal sample in the crucible; one end of the weighing mechanism extends into the heating furnace, and the lifting and rotating mechanism drives the crucible to move so that the bottom end surface of the crucible abuts against the weighing mechanism.

[0011] Furthermore, a plurality of through holes are formed on the sample placement plate, and the number of the crucibles is multiple, and each of the crucibles is placed in one of the through holes.

[0012] Furthermore, an air duct is provided in the heating furnace, and an outlet of the air duct is connected to the air inlet pipe.

[0013] Furthermore, the heating analysis unit also includes a ventilation ring, which is arranged at the bottom of the heating furnace to allow the experimental gas to enter.

[0014] The coal quality analyzer provided by the present invention is provided with a flue gas treatment unit at the tail end of the heating analysis unit. The fan transports the flue gas to the box through the air inlet pipe. The liquid contained therein can absorb the irritating gas in the flue gas, thereby preventing the irritating gas generated during the coal sample analysis from being discharged into the environment, causing harm to the health of the operator and avoiding environmental pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments recorded in this application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 This is a structural diagram of a flue gas treatment unit in an embodiment of the present utility model;

[0017] Figure 2 for Figure 1 Schematic diagram of the terminal structure of the middle intake pipe;

[0018] Figure 3 It is a structural schematic diagram of the coal quality analyzer in an embodiment of the present utility model.

[0019] Reference numerals:

[0020] 10. Flue gas treatment unit; 11. Box body; 12. Air inlet pipe; 121. Pipe body; 122. Air outlet plate; 123. Ventilation hole; 13. Fan;

[0021] 20. Heating and analysis unit; 21. Crucible; 22. Sample placement plate; 23. Heating furnace; 24. Lifting and rotating mechanism; 25. Weighing mechanism; 26. Air duct; 27. Ventilation ring. DETAILED DESCRIPTION

[0022] In order to help those skilled in the art better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making any creative efforts shall fall within the scope of protection of this application.

[0023] It should be noted that when an element is referred to as being “fixed on” or “set on” another element, it can be directly on the other element or indirectly set on the other element; when an element is referred to as being “connected to” another element, it can be directly connected to the other element or indirectly connected to the other element.

[0024] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. Throughout the description of this application, "plurality" or "several" means two or more, unless otherwise specifically defined.

[0026] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the efficacy and purpose that can be achieved by this application.

[0027] like Figure 1As shown, an embodiment of the present application provides a coal quality analyzer, including a heating analysis unit 20 and a flue gas treatment unit 10. The flue gas treatment unit 10 includes a box body 11, an air intake pipe 12 and a fan 13. The box body 11 is filled with a liquid for absorbing irritating gases in the flue gas. The air intake pipe 12 connects the heating analysis unit 20 and the box body 11. The fan 13 is used to transport the flue gas generated by the heating analysis unit 20 to the box body 11 through the air intake pipe 12.

[0028] In the embodiment of the present application, the position of the flue gas treatment unit 10 is not limited. It can be placed inside the heating and analysis unit 20 or outside it, but the air inlet pipe 12 must be connected to the heating and analysis unit 20. The liquid contained in the box 11 is used to absorb the irritating gas in the flue gas. It can be water, lime water or other solutions that are conducive to the absorption of sulfur dioxide. The above-mentioned fan 13 is not limited to negative pressure exhaust. It can also be set on the air inlet pipe 12. Positive pressure exhaust transports the flue gas from the heating and analysis unit 20 to the box 11 of the flue gas treatment unit 10.

[0029] The coal quality analyzer provided in the embodiment of the present application is provided with a flue gas treatment unit 10 at the tail end of the heating analysis unit 20, and the fan 13 transports the flue gas to the box 11 through the air inlet pipe 12. The liquid contained therein can absorb the irritating gas in the flue gas, thereby preventing the irritating gas generated during the coal sample analysis from being discharged into the environment, causing harm to the health of the operator and avoiding environmental pollution.

[0030] In some embodiments, the fan 13 is installed at the exhaust port of the housing 11. In the embodiment of the present application, the fan 13 provides negative pressure ventilation. Turning on the fan 13 creates a negative pressure in the housing 11, and the smoke and irritating gases generated by the heating and analyzing unit 20 are transported through the air inlet pipe 12 into the liquid in the housing 11. The sulfur dioxide is absorbed by the liquid, making the exhaust gas clean and odorless.

[0031] In some embodiments, the air inlet pipe 12 includes a tube body 121 and an air outlet plate 122 provided at one end of the tube body 121. The end of the air inlet pipe 12 provided with the air outlet plate 122 extends into the liquid in the box body 11; a plurality of air vents 123 are formed on the air outlet plate 122. In the embodiment of the present application, the air outlet plate 122 is provided at the end of the air inlet pipe 12 extending into the liquid, so that the gas enters the liquid from the plurality of air vents 123 on the air outlet plate 122. The gas is dispersed by the air vents 123 and can be better absorbed by the liquid. Furthermore, the plurality of air vents 123 are evenly distributed on the air outlet plate 122, with reference to Figure 2 .

[0032] In some embodiments, the heating analysis unit 20 includes a crucible 21, a sample placement plate 22, a heating furnace 23, a lifting and rotating mechanism 24, and a weighing mechanism 25. The crucible 21 is placed in the sample placement plate 22, and the sample placement plate 22 is installed on the top of the lifting and rotating mechanism 24. The top of the lifting and rotating mechanism 24 extends into the heating furnace 23 to heat the coal sample in the crucible 21; one end of the weighing mechanism 25 extends into the heating furnace 23, and the lifting and rotating mechanism 24 drives the crucible 21 to move so that the bottom end surface of the crucible 21 abuts against the weighing mechanism 25.

[0033] In the present application, refer to Figure 3 The sample tray 22 and the crucible 21 placed on it are located within a heating furnace 23. The heating furnace 23 is heated to meet the experimental temperature requirements and simultaneously raise the temperature of the coal sample in the crucible 21. A lifting and rotating mechanism 24 supports the sample tray 22 and drives it to move up and down and rotate, allowing the crucible 21 to abut against a weighing mechanism 25 for easy weighing.

[0034] Furthermore, a plurality of through holes are formed on the sample placement plate 22, and the number of crucibles 21 is multiple, and each crucible 21 is placed in a through hole. In the embodiment of the present application, the plurality of crucibles 21 can be moved in sequence to the weighing mechanism 25 for weighing under the action of the lifting and rotating mechanism 24. The heating furnace 23 can heat the coal samples in the plurality of crucibles 21 at the same time, analyze the plurality of coal samples at one time, and improve the analysis efficiency. In order to make the crucible 21 more stably placed in the through hole and not fall during the movement, the crucible 21 and the sample placement plate 22 can be fixed by means of a snap connection or a screw connection.

[0035] In some embodiments, an air duct 26 is provided in the heating furnace 23, and the outlet of the air duct 26 is connected to the air inlet pipe 12. In other words, the gas generated during the coal sampling experiment is discharged through the air duct 26 into the air inlet pipe 12 of the flue gas treatment unit 10, and then transported to the liquid in the box 11 for absorption.

[0036] In some embodiments, the heating analysis unit 20 further includes a vent ring 27 disposed at the bottom of the heating furnace 23 for introducing experimental gases. The vent ring 27 is used to introduce different gases, such as nitrogen, air, or oxygen, to meet the gas requirements of different experiments.

[0037] The specific implementation process of the coal quality analyzer of the embodiment of the present application is as follows: the crucibles 21 are placed one by one on the sample tray 22, and the lifting and rotating mechanism 24 is lifted and rotated to place the crucibles 21 one by one on the weighing mechanism 25 to weigh the weight of the crucible 21; then the crucible 21 is placed on the weighing mechanism 25 again by the lifting and rotating mechanism 24, and the operator starts to add samples. After the weighing is completed, the lifting and rotating mechanism 24 drives the crucible 21 to rise, and the sample tray 22 is rotated to the next crucible 21. The above steps are repeated until the addition and weighing of samples in all crucibles 21 are completed. The heating furnace 23 starts heating, the ventilation ring 27 is ventilated, and the lifting and rotating mechanism 24 drives the sample tray 22 to start rotating. During the experiment, the fan 13 in the flue gas treatment unit 10 starts working, so that a negative pressure is generated in the box 11. The smoke and irritating gases pass through the air duct 26 and the air inlet pipe 12. After being dispersed through the vent hole 123 at the bottom of the air inlet pipe 12, the sulfur dioxide in the gas is fully absorbed by the liquid, and finally the clean and odorless gas is discharged through the fan 13.

[0038] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A coal quality analyzer, characterized in that: It includes a heating and analyzing unit and a flue gas treatment unit. The flue gas treatment unit includes a box, an air inlet pipe and a fan. The box contains a liquid that absorbs irritating gases in the flue gas. The air inlet pipe connects the heating and analyzing unit with the box. The fan is used to transport the flue gas generated by the heating and analyzing unit into the box through the air inlet pipe.

2. The coal quality analyzer according to claim 1, characterized in that: The fan is installed at the exhaust port of the box.

3. The coal quality analyzer according to claim 1, characterized in that: The air inlet pipe includes a pipe body and an air outlet plate arranged at one end of the pipe body, and one end of the air inlet pipe provided with the air outlet plate extends into the liquid in the box body; a plurality of vents are formed on the air outlet plate.

4. The coal quality analyzer according to claim 3, characterized in that: The plurality of vent holes are evenly distributed on the vent plate.

5. The coal quality analyzer according to any one of claims 1 to 4, characterized in that: The heating analysis unit includes a crucible, a sample placement plate, a heating furnace, a lifting and rotating mechanism, and a weighing mechanism. The crucible is placed in the sample placement plate, the sample placement plate is installed on the top of the lifting and rotating mechanism, and the top of the lifting and rotating mechanism extends into the heating furnace to heat the coal sample in the crucible; one end of the weighing mechanism extends into the heating furnace, and the lifting and rotating mechanism drives the crucible to move so that the bottom end surface of the crucible abuts against the weighing mechanism.

6. The coal quality analyzer according to claim 5, characterized in that: A plurality of through holes are formed on the sample plate, and the number of the crucibles is multiple, and each crucible is placed in one of the through holes.

7. The coal quality analyzer according to claim 5, characterized in that: An air duct is provided in the heating furnace, and an outlet of the air duct is communicated with the air inlet pipe.

8. The coal quality analyzer according to claim 6, characterized in that: The heating analysis unit further comprises a ventilation ring, which is arranged at the bottom of the heating furnace to allow experimental gas to enter.

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