Coal heat detection equipment

Abstract

The utility model belongs to the technical field of coal heat detection equipment, and particularly relates to coal heat detection equipment, which comprises a coal combustion device, a sealing door and a detector, and further comprises a rotating plate, the rotating plate is rotatably arranged in the coal combustion device, the sealing door is rotatably arranged on the coal combustion device, the detector is fixedly arranged on the sealing door, and the rotating plate is fixedly arranged on the coal combustion device. A crushing shell is fixedly mounted at the top of the coal combustion device, and two crushing rollers are rotationally mounted in the crushing shell; the power cavity is formed in the crushing shell, one ends of the two crushing rollers penetrate through the crushing shell and extend into the power cavity, first gears are fixedly mounted at one ends of the two crushing rollers, and the two first gears are meshed; it is guaranteed that the coal heating speed is high, the coal can be completely heated, meanwhile, it is guaranteed that harmful substances in harmful gas are filtered and do not threaten the body health of a user any more, it is guaranteed that impurities cannot pollute the environment, the activated carbon filter screen can be conveniently disassembled, assembled and cleaned, and operation is easy.

Description

Technical Field

[0001] This utility model belongs to the technical field of coal calorific value detection equipment, and in particular relates to a coal calorific value detection equipment. Background Technology

[0002] The purpose of coal calorific value testing is to accurately assess its combustion performance and quality, ensure safety and environmental protection during the production process, help save production costs and improve economic efficiency, and provide a scientific basis for coal market pricing and rational utilization. It is an indispensable and important link in coal trade and application.

[0003] For example, Chinese patent CN214277976U discloses a coal quality testing device for power plants, relating to the technical field of coal testing equipment. The device includes a main body comprising a combustion chamber, a testing instrument, and an induced draft fan. The induced draft fan is fixedly installed on the upper side of the combustion chamber, and an exhaust pipe is fixedly installed on the upper side of the fan. In this invention, the motor shaft of the motor rotates a transmission sleeve connected to the internal fan of the induced draft fan via a transmission wheel and belt. This causes the internal fan of the induced draft fan to rotate, rapidly extracting smoke and heat from the combustion chamber. This prevents workers from being exposed to heat shock when opening the outer door of the combustion chamber and also avoids exposure to toxic gases. Simultaneously, the cleaning brush rotates with the rotating plate, cleaning the inner wall of the combustion chamber. This effectively ensures the combustion quality of coal within the combustion chamber, allowing the coal to release normal heat and improving the accuracy of coal quality testing.

[0004] The aforementioned patent has the following problems:

[0005] This patented device has some drawbacks in its use. For example, if the coal particles are too large, the coal may not be heated completely, thus affecting the accuracy of the coal calorific value detection. Additionally, the detection process may release harmful gases, which could pose a threat to the health of the operators. Therefore, we propose a coal calorific value detection device. Utility Model Content

[0006] The purpose of this invention is to provide a coal calorific value detection device to solve the problems mentioned in the background art.

[0007] In view of this, the present invention provides a coal calorific value detection device, including a coal combustion device, a sealing door, and a detector, and further includes:

[0008] A rotating plate is rotatably installed inside the coal combustion device. A sealing door is rotatably installed on the coal combustion device. A detector is fixedly installed on the sealing door. A crushing shell is fixedly installed on the top of the coal combustion device. Two crushing rollers are rotatably installed inside the crushing shell.

[0009] The power chamber is located inside the crushing shell. One end of each of the two crushing rollers penetrates the crushing shell and extends into the power chamber. One end of each of the two crushing rollers is fixedly mounted with a first gear, and the two first gears mesh.

[0010] A drive assembly, located on the coal combustion device, is used to drive the two crushing rollers and the rotating plate to rotate.

[0011] A filter housing is fixedly installed on the top of the coal combustion device. A fixing frame is inserted into the filter housing, and an activated carbon filter screen is fixedly installed on the fixing frame. A negative pressure fan is fixedly installed at the air outlet of the filter housing.

[0012] A fixing component, located inside the filter housing, is used to fix the position of the fixing frame.

[0013] In this technical solution, when it is necessary to detect the calorific value of coal, the coal is first placed into the crushing shell. The drive assembly drives two crushing rollers to rotate in opposite directions. The two crushing rollers can crush larger coal particles, ensuring that no large particles are produced when the coal is heated. Then, the coal enters the coal combustion device. The drive assembly drives a rotating plate to rotate, which spreads the coal evenly inside the combustion device, ensuring that the coal can be heated quickly and that it does not pile up and heat slowly. Finally, the sealing door is activated to heat the coal, and the calorific value of the coal is detected by a detector to ensure that the coal is heated quickly and completely.

[0014] When coal is heated, the negative pressure fan is activated. The negative pressure fan slowly draws harmful gases from the coal combustion device into the filter housing. At the same time, outside air slowly enters the coal combustion device through the pulverizing shell. The activated carbon filter adsorbs the harmful gases, ensuring that harmful substances in the gases are filtered out and no longer threaten the health of the users. The activated carbon filter also adsorbs impurities in the harmful gases, ensuring that impurities do not pollute the environment. When the activated carbon filter needs to be cleaned, the fixed frame can be pulled out using the fixed component, and the activated carbon filter can be removed. After cleaning the activated carbon filter, the fixed frame is reinserted into the filter housing. The fixed component can fix the position of the fixed frame, making it convenient to disassemble, install, and clean the activated carbon filter. The operation is simple.

[0015] In the above technical solution, the driving component further includes:

[0016] A first bevel gear is fixedly installed at one end of one of the first gears, and a second bevel gear is meshed on one side of the first bevel gear;

[0017] The motor is fixedly installed inside the power chamber. The output shaft of the motor and the bottom end of the second bevel gear are both fixedly installed with transmission wheels. A transmission belt is installed between the two transmission wheels. The upper end of the rotating plate passes through the coal combustion device and the crushing shell and extends into the power chamber. The upper end of the rotating plate is coaxially connected to one of the transmission wheels.

[0018] In this technical solution, when it is necessary to detect the calorific value of coal, the coal is first placed into the crushing chamber. Then, the motor is started, and the motor drives one of the transmission wheels to rotate. This transmission wheel drives a transmission belt, which in turn drives another transmission wheel to rotate. The second transmission wheel drives a second bevel gear to rotate, which in turn drives a first bevel gear meshing with it to rotate. This first bevel gear drives one of the first gears to rotate, and this first gear drives another first gear meshing with it to rotate in the opposite direction. The two first gears drive two crushing rollers to rotate in opposite directions. The two crushing rollers can crush larger coal particles, ensuring that no large particles remain during heating. Next, the coal enters the coal combustion device, and simultaneously, one of the transmission wheels drives a rotating plate to rotate. The rotating plate spreads the coal evenly within the coal combustion device, ensuring rapid heating and preventing coal from piling up and slowing down the heating process. Finally, the sealing door is activated to heat the coal, and the calorific value of the coal is detected by a detector, ensuring that the coal is heated quickly and completely.

[0019] In the above technical solution, the fixing component further includes:

[0020] A sliding groove is formed inside the filter housing and located at the top of the fixed frame. A limiting block is slidably installed inside the sliding groove. The bottom of the limiting block passes through the sliding groove and extends into the fixed frame, and the bottom of the limiting block is inserted into the fixed frame. Several springs that are fixed to the inner wall of the sliding groove are fixedly installed on the top of the limiting block. One side of the limiting block passes through the sliding groove and extends to the outside.

[0021] In this technical solution, when coal is heated, a negative pressure fan is activated. The negative pressure fan slowly draws harmful gases from the coal combustion device into the filter housing. Simultaneously, outside air slowly enters the coal combustion device through the pulverizing shell. The activated carbon filter adsorbs the harmful gases, ensuring that harmful substances are filtered out and no longer threaten the health of users. The activated carbon filter also adsorbs impurities within the harmful gases, preventing environmental pollution. When cleaning the activated carbon filter is required, first pull the limit block upwards, while several springs are subjected to… The compression and contraction mechanism works as follows: After the bottom of the limiting block detaches from the fixed frame, the fixed frame is pulled, causing the activated carbon filter to be removed. The activated carbon filter is then cleaned. Finally, the fixed frame is reinserted into the filter housing. The fixed frame will compress the inclined surface of the limiting block, causing it to slide upwards under pressure. Simultaneously, several springs are compressed and contracted. When the fixed frame is inserted into the appropriate position, it no longer compresses the limiting block. Under the rebound force of the springs, the limiting block slides downwards and inserts into the fixed frame, thus fixing the position of the fixed frame. This facilitates the disassembly, installation, and cleaning of the activated carbon filter, making the operation simple.

[0022] In the above technical solution, the two first gears, the first bevel gear, the second bevel gear, and the two transmission wheels are all rotatably connected to the power chamber, and the rotating plate is rotatably connected to the crushing shell and the power chamber.

[0023] In this technical solution, it is ensured that the two first gears, the first bevel gear, the second bevel gear, and the two transmission wheels can all rotate within the power chamber, thus ensuring that the rotating plate can rotate within the crushing shell and the power chamber.

[0024] In the above technical solution, the bottom of the limiting block is further inclined.

[0025] In this technical solution, the fixed frame is ensured to press against the inclined surface of the limiting block, and the limiting block slides upward under pressure.

[0026] In the above technical solution, both the filter shell and the crushing shell are connected to the coal combustion device.

[0027] In this technical solution, harmful gases can be discharged to the outside through the filter shell, and coal can be entered into the coal combustion device through the crushing shell.

[0028] In the above technical solution, furthermore, both sides of the rotating plate are in close contact with the inner wall of the coal combustion device.

[0029] In this technical solution, the rotating plate is designed to scrape the inner wall of the coal combustion device, ensuring that there are no impurities on the inner wall of the coal combustion device.

[0030] The beneficial effects of this utility model are:

[0031] 1. This coal calorific value detection equipment involves placing coal into a crushing chamber. A drive assembly rotates two crushing rollers in opposite directions, effectively crushing larger coal particles to prevent them from forming during heating. The coal then enters a combustion device, where another drive assembly rotates a rotating plate, spreading the coal evenly within the combustion chamber for rapid heating and preventing coal accumulation that slows down the heating process. Finally, a sealing door is activated to heat the coal, and the calorific value is measured by a detector to ensure rapid and complete heating.

[0032] 2. When the coal is heated, the negative pressure fan is started. The negative pressure fan slowly draws the harmful gases in the coal combustion device into the filter shell. At the same time, outside air slowly enters the coal combustion device through the crushing shell. The activated carbon filter will adsorb the harmful gases, ensuring that the harmful substances in the harmful gases are filtered out and no longer threaten the health of the users. At the same time, the activated carbon filter can also adsorb impurities in the harmful gases, ensuring that the impurities will not pollute the environment.

[0033] When the activated carbon filter needs to be cleaned, the fixed frame can be pulled out using the fixed component, and the activated carbon filter can then be cleaned. Finally, the fixed frame can be reinserted into the filter housing. The fixed frame can be fixed in position using the fixed component, making it easy to disassemble, install, and clean the activated carbon filter. The operation is simple. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0035] Figure 2 This is a schematic diagram of the rotating plate area structure of this utility model;

[0036] Figure 3 This is a schematic diagram of the cross-sectional structure of the crushing shell of this utility model;

[0037] Figure 4 This is the utility model Figure 3 Enlarged structural diagram at point A;

[0038] Figure 5 This is a schematic diagram of the regional structure of the coal combustion device of this utility model;

[0039] Figure 6 This is one of the schematic diagrams of the cross-sectional structure of the filter shell of this utility model;

[0040] Figure 7 This is the utility model Figure 6 Enlarged structural diagram at point B;

[0041] Figure 8 This is the second schematic diagram of the cross-sectional structure of the filter shell of this utility model;

[0042] Figure 9 This is a schematic diagram of the rotating plate structure of this utility model;

[0043] Figure 10 This is a schematic diagram of the limiting block structure of this utility model.

[0044] The markings in the diagram are as follows:

[0045] 1. Coal combustion device; 2. Sealing door; 3. Detector; 4. Rotating plate; 5. Crushing shell; 6. Crushing roller; 7. Filter shell; 8. Fixing frame; 9. Activated carbon filter screen; 10. Negative pressure fan; 11. Power chamber; 12. First gear; 13. First bevel gear; 14. Second bevel gear; 15. Motor; 16. Transmission wheel; 17. Transmission belt; 18. Sliding groove; 19. Limiting block; 20. Spring. Detailed Implementation

[0046] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0047] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items, and therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0048] It should be noted that the terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and are not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0049] It should be noted that in the description of this application, the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0050] It should be noted that, in this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0051] Example 1:

[0052] Please see Figure 1 - Figure 10 As shown, this embodiment provides a coal calorific value detection device, including a coal combustion device 1, a sealing door 2, and a detector 3, and also includes:

[0053] Rotating plate 4 is rotatably installed inside coal combustion device 1. Sealing door 2 is rotatably installed on coal combustion device 1. Detector 3 is fixedly installed on sealing door 2. Crushing shell 5 is fixedly installed on the top of coal combustion device 1. Two crushing rollers 6 are rotatably installed inside crushing shell 5.

[0054] The power chamber 11 is located inside the crushing shell 5. One end of each of the two crushing rollers 6 passes through the crushing shell 5 and extends into the power chamber 11. One end of each of the two crushing rollers 6 is fixedly installed with a first gear 12, and the two first gears 12 mesh.

[0055] The drive assembly is located on the coal combustion device 1 and is used to drive the two crushing rollers 6 to rotate and the rotating plate 4 to rotate.

[0056] The filter housing 7 is fixedly installed on the top of the coal combustion device 1. A fixing frame 8 is inserted into the filter housing 7. An activated carbon filter screen 9 is fixedly installed on the fixing frame 8. A negative pressure fan 10 is fixedly installed at the air outlet of the filter housing 7.

[0057] The fixing component is located inside the filter housing 7 and is used to fix the position of the fixing frame 8.

[0058] When it is necessary to detect the calorific value of coal, the coal is first placed into the crushing shell 5. The driving component drives two crushing rollers 6 to rotate in opposite directions. The two crushing rollers 6 can crush larger coal particles to ensure that no large particles are produced when the coal is heated. Then the coal enters the coal combustion device 1. The driving component drives the rotating plate 4 to rotate. The rotating plate 4 spreads the coal evenly in the coal combustion device 1 to ensure that the coal can be heated quickly and will not pile up and heat slowly. Finally, the sealing door 2 is activated to heat the coal. The calorific value of the coal is then detected by the detector 3 to ensure that the coal is heated quickly and completely.

[0059] When the coal is heated, the negative pressure fan 10 is started. The negative pressure fan 10 slowly draws the harmful gases from the coal combustion device 1 into the filter shell 7. At the same time, outside air slowly enters the coal combustion device 1 through the pulverizing shell 5. The activated carbon filter 9 adsorbs the harmful gases, ensuring that the harmful substances in the gases are filtered out and no longer threaten the health of the users. At the same time, the activated carbon filter 9 can also adsorb impurities in the harmful gases, ensuring that impurities do not pollute the environment. When it is necessary to clean the activated carbon filter 9, the fixing frame 8 can be pulled and the activated carbon filter 9 can be taken out through the fixed component. After cleaning the activated carbon filter 9, the fixing frame 8 is reinserted into the filter shell 7. The fixed component can fix the position of the fixing frame 8, which facilitates the disassembly, installation and cleaning of the activated carbon filter 9. The operation is simple.

[0060] In this embodiment, the driving component includes:

[0061] A first bevel gear 13 is fixedly installed at one end of one of the first gears 12, and a second bevel gear 14 is meshed on one side of the first bevel gear 13.

[0062] The motor 15 is fixedly installed in the power chamber 11. The output shaft of the motor 15 and the bottom end of the second bevel gear 14 are both fixedly installed with transmission wheels 16. A transmission belt 17 is installed between the two transmission wheels 16. The upper end of the rotating plate 4 passes through the coal combustion device 1 and the crushing shell 5 and extends into the power chamber 11. The upper end of the rotating plate 4 is coaxially connected with one of the transmission wheels 16.

[0063] When it is necessary to detect the calorific value of coal, the coal is first placed into the crushing shell 5, and then the motor 15 is started. The motor 15 is powered on and drives one of the drive wheels 16 to rotate. One of the drive wheels 16 drives the drive belt 17 to rotate, the drive belt 17 drives the other drive wheel 16 to rotate, the other drive wheel 16 drives the second bevel gear 14 to rotate, the second bevel gear 14 drives the first bevel gear 13 meshing with it to rotate, the first bevel gear 13 drives one of the first gears 12 to rotate, and the first gear 12 drives the other first gear 12 meshing with it to rotate in the opposite direction. The two first gears 12 respectively drive... Two crushing rollers 6 rotate in opposite directions, crushing larger coal particles to ensure that no large particles remain during heating. The coal then enters the coal combustion device 1, while one of the drive wheels 16 drives the rotating plate 4 to rotate, spreading the coal evenly within the combustion device 1. This ensures rapid heating and prevents coal from piling up and slowing down the heating process. Finally, the sealing door 2 is activated to heat the coal, and the heat output of the coal is measured by the detector 3 to ensure fast and complete heating.

[0064] In this embodiment, the fixing component includes:

[0065] A sliding groove 18 is formed inside the filter shell 7 and located at the top of the fixed frame 8. A limiting block 19 is slidably installed inside the sliding groove 18. The bottom of the limiting block 19 passes through the sliding groove 18 and extends into the fixed frame 8. The bottom of the limiting block 19 is inserted into the fixed frame 8. Several springs 20 fixed to the inner wall of the sliding groove 18 are fixedly installed on the top of the limiting block 19. One side of the limiting block 19 passes through the sliding groove 18 and extends to the outside.

[0066] During coal heating, the negative pressure fan 10 is activated, slowly drawing harmful gases from the coal combustion device 1 into the filter shell 7. Simultaneously, outside air slowly enters the coal combustion device 1 through the pulverizing shell 5. The activated carbon filter 9 adsorbs the harmful gases, ensuring that harmful substances are filtered out and no longer threaten the health of users. The activated carbon filter 9 also adsorbs impurities in the harmful gases, preventing environmental pollution. When cleaning the activated carbon filter 9 is required, the limit block 19 is pulled upwards, simultaneously compressing several springs 20. When the limit block is closed... After the bottom of block 19 detaches from the fixed frame 8, pull the fixed frame 8 and remove the activated carbon filter 9. Clean the activated carbon filter 9, and finally reinsert the fixed frame 8 into the filter shell 7. The fixed frame 8 will press the inclined surface of the limiting block 19, and the limiting block 19 will slide upward under the pressure. At the same time, several springs 20 will be compressed and contracted. When the fixed frame 8 is inserted into the appropriate position, the fixed frame 8 will no longer press the limiting block 19. Under the action of the rebound force of several springs 20, the limiting block 19 will slide downward and insert into the fixed frame 8, which can fix the position of the fixed frame 8, making it convenient to disassemble, install and clean the activated carbon filter 9. The operation is simple.

[0067] Example 2:

[0068] This embodiment provides a coal calorific value detection device, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0069] In this embodiment, the two first gears 12, the first bevel gear 13, the second bevel gear 14, and the two transmission wheels 16 are all rotatably connected to the power chamber 11, and the rotating plate 4 is rotatably connected to the crushing shell 5 and the power chamber 11.

[0070] Specifically, it is ensured that the two first gears 12, the first bevel gear 13, the second bevel gear 14, and the two transmission wheels 16 can all rotate within the power chamber 11, and that the rotating plate 4 can rotate within the crushing shell 5 and the power chamber 11.

[0071] Example 3:

[0072] This embodiment provides a coal calorific value detection device, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0073] In this embodiment, the bottom of the limiting block 19 is inclined.

[0074] In this process, the fixed frame 8 is ensured to press against the inclined surface of the limiting block 19, and the limiting block 19 slides upward under pressure.

[0075] Example 4:

[0076] This embodiment provides a coal calorific value detection device, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0077] In this embodiment, both the filter shell 7 and the pulverizing shell 5 are connected to the coal combustion device 1.

[0078] This ensures that harmful gases can be discharged to the outside through the filter shell 7, and that coal can enter the coal combustion device 1 through the crushing shell 5.

[0079] Example 5:

[0080] This embodiment provides a coal calorific value detection device, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0081] In this embodiment, both sides of the rotating plate 4 are in close contact with the inner wall of the coal combustion device 1.

[0082] Specifically, the rotating plate 4 is designed to scrape the inner wall of the coal combustion device 1, ensuring that there are no impurities on the inner wall of the coal combustion device 1.

[0083] It is worth noting that the structure and principle of coal heating in this embodiment are existing technologies. For details, please refer to the prior art document (publication number CN214277976U, patent name: a coal quality testing device for power plants), which will not be repeated here.

[0084] Working principle: When it is necessary to detect the calorific value of coal, the coal is first placed into the crushing chamber 5, and then the motor 15 is started. The motor 15 is powered on and drives one of the transmission wheels 16 to rotate. One of the transmission wheels 16 drives the transmission belt 17 to rotate, and the transmission belt 17 drives the other transmission wheel 16 to rotate. The other transmission wheel 16 drives the second bevel gear 14 to rotate, and the second bevel gear 14 drives the first bevel gear 13 meshing with it to rotate. The first bevel gear 13 drives one of the first gears 12 to rotate, and the first gear 12 drives the other first gear 12 meshing with it to rotate in the opposite direction. The two first gears 12 respectively... The two crushing rollers 6 rotate in opposite directions, which can crush larger coal particles to ensure that no large particles are produced when the coal is heated. Then the coal enters the coal combustion device 1. At the same time, one of the drive wheels 16 drives the rotating plate 4 to rotate. The rotating plate 4 will spread the coal evenly in the coal combustion device 1 to ensure that the coal can be heated quickly and will not pile up and heat slowly. Finally, the sealing door 2 is activated to heat the coal, and the heat of the coal is detected by the detector 3 to ensure that the coal is heated quickly and completely.

[0085] When the coal is heated, the negative pressure fan 10 is started. The negative pressure fan 10 slowly draws the harmful gases from the coal combustion device 1 into the filter shell 7. At the same time, outside air slowly enters the coal combustion device 1 through the pulverizing shell 5. The activated carbon filter 9 adsorbs the harmful gases, ensuring that the harmful substances in the gases are filtered out and no longer threaten the health of the users. At the same time, the activated carbon filter 9 can also adsorb impurities in the harmful gases, ensuring that impurities do not pollute the environment. When it is necessary to clean the activated carbon filter 9, first pull the limit block 19 upward, and at the same time, several springs 20 are compressed and contracted. After the bottom of the filter 19 detaches from the fixed frame 8, pull the fixed frame 8 and remove the activated carbon filter 9. Clean the activated carbon filter 9, and finally reinsert the fixed frame 8 into the filter housing 7. The fixed frame 8 will press the inclined surface of the limiting block 19, and the limiting block 19 will slide upward under the pressure. At the same time, several springs 20 will be compressed and contracted. When the fixed frame 8 is inserted into the appropriate position, the fixed frame 8 will no longer press the limiting block 19. Under the action of the rebound force of several springs 20, the limiting block 19 will slide downward and insert into the fixed frame 8, which can fix the position of the fixed frame 8, making it convenient to disassemble, install and clean the activated carbon filter 9. The operation is simple.

[0086] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A coal calorific value detection device, comprising a coal combustion device (1), a sealing door (2), and a detector (3), characterized in that, Also includes: Rotating plate (4), the rotating plate (4) is rotatably installed inside the coal combustion device (1), the sealing door (2) is rotatably installed on the coal combustion device (1), the detector (3) is fixedly installed on the sealing door (2), the top of the coal combustion device (1) is fixedly installed with a crushing shell (5), and two crushing rollers (6) are rotatably installed inside the crushing shell (5); The power chamber (11) is located inside the crushing shell (5). One end of each of the two crushing rollers (6) passes through the crushing shell (5) and extends into the power chamber (11). One end of each of the two crushing rollers (6) is fixedly mounted with a first gear (12), and the two first gears (12) mesh. A drive assembly located on the coal combustion device (1) and used to drive the two crushing rollers (6) to rotate and the rotating plate (4) to rotate; A filter shell (7) is fixedly installed on the top of the coal combustion device (1). A fixed frame (8) is inserted into the filter shell (7). An activated carbon filter screen (9) is fixedly installed on the fixed frame (8). A negative pressure fan (10) is fixedly installed at the air outlet of the filter shell (7). A fixing component is located inside the filter housing (7) and is used to fix the position of the fixing frame (8).

2. The coal calorific value detection device according to claim 1, characterized in that, The driving component includes: A first bevel gear (13) is fixedly mounted on one end of one of the first gears (12), and a second bevel gear (14) is meshed on one side of the first bevel gear (13). The motor (15) is fixedly installed in the power chamber (11). The output shaft of the motor (15) and the bottom end of the second bevel gear (14) are both fixedly installed with transmission wheels (16). A transmission belt (17) is installed between the two transmission wheels (16). The upper end of the rotating plate (4) passes through the coal combustion device (1) and the crushing shell (5) and extends into the power chamber (11). The upper end of the rotating plate (4) is coaxially connected to one of the transmission wheels (16).

3. The coal calorific value detection device according to claim 2, characterized in that, The fixing component includes: A sliding groove (18) is formed inside the filter shell (7) and located at the top of the fixed frame (8). A limiting block (19) is slidably installed inside the sliding groove (18). The bottom of the limiting block (19) passes through the sliding groove (18) and extends into the fixed frame (8). The bottom of the limiting block (19) is inserted into the fixed frame (8). Several springs (20) fixed to the inner wall of the sliding groove (18) are fixedly installed on the top of the limiting block (19). One side of the limiting block (19) passes through the sliding groove (18) and extends to the outside.

4. The coal calorific value detection device according to claim 2, characterized in that, The two first gears (12), the first bevel gear (13), the second bevel gear (14) and the two transmission wheels (16) are all rotatably connected to the power chamber (11), and the rotating plate (4) is rotatably connected to the crushing shell (5) and the power chamber (11).

5. The coal calorific value detection device according to claim 3, characterized in that, The bottom of the limiting block (19) is inclined.

6. The coal calorific value detection device according to claim 1, characterized in that, The filter shell (7) and the crushing shell (5) are both connected to the coal combustion device (1).

7. The coal calorific value detection device according to claim 1, characterized in that, Both sides of the rotating plate (4) are in close contact with the inner wall of the coal combustion device (1).

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