Storage and stirring device for testing fuel coal in power plant

Abstract

The utility model discloses a storage stirring device for power plant fuel coal test, the storage stirring device for power plant fuel coal test comprises a stirring tank, a first stirring piece and a second stirring piece, the stirring tank comprises a tank body and a cover body, the cover body is used for covering the tank body so as to seal the tank body, the first stirring part is arranged in the stirring tank, extends in the vertical direction and can rotate around the vertical direction relative to the tank body, so that materials in the tank body are stirred by the first stirring part, and the second stirring part is arranged in the tank body, extends in the vertical direction and can rotate around the vertical direction relative to the tank body; therefore, the second stirring piece stirs the materials in the tank body. The storing and stirring device for testing the fuel coal in the power plant has the advantages of simple structure, good sealing performance and the like.

Description

Technical Field

[0001] This utility model relates to the field of fuel processing, specifically to a storage and stirring device for testing and processing coal used in power plants. Background Technology

[0002] The most commonly used fuel in thermal power plants is coal. Before using coal to generate electricity, the composition of the coal needs to be tested to determine whether it meets the standards. In order to improve the accuracy of the test results and ensure that the coal is fully burned, the coal needs to be stirred using a storage and stirring device before testing.

[0003] In related technologies, storage and mixing devices mainly consist of a tank shell with a feed pipe that can store coal fuel and a mixing frame powered by an electric motor to mix the coal fuel. When using the storage and mixing device, coal fuel is added to the tank shell, and then the mixing frame mixes the coal fuel. After mixing, the coal fuel is poured out for testing. The tank shell can also store coal fuel that has not yet been tested. However, during the mixing process, a large amount of coal dust is generated inside the tank shell. This dust can easily diffuse into the surrounding air through the feed pipe, causing air pollution. It is also inconvenient for personnel to conduct testing operations around the storage and mixing device. Furthermore, existing storage and mixing devices for coal testing have a single mixing method, resulting in low mixing efficiency. Utility Model Content

[0004] This utility model aims to at least partially solve one of the technical problems in the related art.

[0005] Therefore, embodiments of this utility model propose a storage and stirring device for power plant fuel coal testing that has high stirring efficiency and prevents dust from escaping.

[0006] The power plant fuel coal chemical testing and storage mixing device according to an embodiment of the present invention includes: a mixing tank, the mixing tank including a tank body and a cover, the cover being used to cover the tank body to seal the tank body; a first mixing member, the first mixing member being disposed inside the mixing tank and extending in a vertical direction, the first mixing member being rotatable relative to the tank body in a vertical direction to mix the material inside the tank body; and a second mixing member, the second mixing member being disposed inside the tank body and extending in a vertical direction, the second mixing member being rotatable relative to the tank body in a vertical direction to mix the material inside the tank body.

[0007] This utility model discloses a storage and stirring device for power plant fuel coal testing, which includes a tank, a cover, a first stirring element, and a second stirring element. This effectively prevents external contamination, ensures the accuracy of test results, prevents fuel coal leakage, protects the surrounding environment, and guarantees the purity of the internal materials.

[0008] In some embodiments, there are multiple second stirring elements, each of which is rotatably disposed within the tank and spaced circumferentially around the first stirring element.

[0009] In some embodiments, the first stirring element includes a first rotating shaft and a plurality of first stirring blades. The first rotating shaft is rotatably disposed in the tank, and the plurality of first stirring blades are disposed on the first rotating shaft and spaced apart circumferentially around the first rotating shaft. The first stirring blades extend in the vertical direction.

[0010] In some embodiments, the second stirring element includes a second rotating shaft and a plurality of second stirring blades. The second rotating shaft is disposed in the tank body, and the plurality of second stirring blades are arranged in multiple rows along the circumference of the second rotating shaft. Each row includes a plurality of second stirring blades spaced apart in the vertical direction.

[0011] In some embodiments, a first driving component is further included, which is connected to the first stirring element and the second stirring element respectively, so that the first driving component drives the first stirring element and the second stirring element to rotate synchronously.

[0012] In some embodiments, the first driving assembly includes: a gear ring disposed below the tank body, the gear ring having a first tooth and a second tooth respectively on its inner and outer circumferential surfaces; a first gear disposed within the gear ring and meshing with the first tooth, the lower end of the second stirring member passing through the tank body and connected to the first gear, so that the first gear drives the second stirring member to rotate; a drive shaft and a first motor, the first motor being connected to the drive shaft so that the first motor drives the drive shaft to rotate, the drive shaft being disposed on one side of the tank body and rotatable relative to the tank body in a vertical direction, the lower end of the drive shaft having a second gear meshing with the second tooth, so that the drive shaft drives the gear ring to rotate via the second gear; and a meshing third gear and a fourth gear, the third gear being disposed at the upper end of the drive shaft, the upper end of the first stirring member passing through the cover body and connected to the fourth gear, so that the drive shaft drives the first stirring member to rotate via the third gear and the fourth gear.

[0013] In some embodiments, the power plant fuel coal testing and storage stirring device further includes a second drive assembly connected to the cover body, so that the second drive assembly drives the cover body to move in the up-down direction.

[0014] In some embodiments, the second drive assembly includes: a housing extending in a vertical direction; a threaded rod rotatably disposed within the housing and rotatable relative to the housing in a vertical direction; a movable frame, one end of which passes through the housing and engages with the threaded rod so that rotation of the threaded rod drives the movable frame to move vertically, and the other end of the movable frame is connected to the cover so that the movable frame drives the cover to move; and a second motor disposed on the housing and connected to the threaded rod so that the second motor drives the threaded rod to rotate.

[0015] In some embodiments, the power plant fuel coal testing and storage stirring device further includes a sealing ring disposed between the tank and the cover to seal the gap between the tank and the cover.

[0016] In some embodiments, the power plant fuel coal chemical testing storage and stirring device further includes an electromagnetic discharge valve, which is located at the bottom of the tank and communicates with the tank so that the fuel in the tank can be discharged through the electromagnetic discharge valve. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a storage and stirring device for power plant fuel coal testing according to an embodiment of this utility model.

[0018] Figure 2 This is an internal schematic diagram of the storage and stirring device for power plant fuel coal testing according to an embodiment of this utility model.

[0019] Figure 3 yes Figure 1 A magnified view of part A in the image.

[0020] Figure 4 yes Figure 2 A magnified view of part B in the image.

[0021] 100m³ power plant fuel coal testing and storage mixing device;

[0022] Mixing tank 1; tank body 11; cover 12; chute 13;

[0023] First stirring component 2; First rotating shaft 21; First stirring blade 22;

[0024] Second stirring component 3; Second rotating shaft 31; Second stirring blade 32;

[0025] First drive assembly 4; gear ring 41; first gear 42; drive shaft 43; first motor 44; third gear 45; fourth gear 46; second gear 47; connecting rod 48; fifth gear 49; sixth gear 40;

[0026] Second drive assembly 5; housing 51; second motor 52; movable frame 53;

[0027] 6. Sealing ring; 7. Electromagnetic discharge valve; 8. Base plate; 9. Fixing block; 10. Slide groove. Detailed Implementation

[0028] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0029] The following description, with reference to the accompanying drawings, describes a storage and stirring apparatus for power plant fuel coal testing according to an embodiment of the present invention.

[0030] like Figure 1-4 As shown, the power plant fuel coal chemical testing storage and stirring device 100 according to an embodiment of the present utility model includes a stirring tank 1, a first stirring element 2, and a second stirring element 3.

[0031] The mixing tank 1 includes a tank body 11 and a cover 12, the cover 12 being used to cover the tank body 11 to seal the tank body 11, specifically, as shown in the figure. Figure 1-2 As shown, the tank 11 is a cylindrical tank without a top surface. The tank 11 serves as the main container for storing fuel coal. The tank 11 has sufficient capacity to hold the fuel coal sample to be tested. The cover 12 is used to cover the top of the tank 11 to seal the tank 11, prevent external impurities from entering and maintain a stable internal environment. The cooperation between the cover 12 and the tank 11 ensures the good airtightness of the mixing tank 1, preventing the fuel from diffusing into the surrounding air during the mixing process.

[0032] The first agitator 2 is disposed inside the mixing tank 1 and extends vertically. The first agitator 2 is rotatable relative to the tank body 11 in the vertical direction so that the first agitator 2 agitates the material inside the tank 1. Specifically, as shown... Figure 1-2 As shown, the first stirring element 2 is located inside the tank 11 and the axis of the first stirring element 2 coincides with the axis of the tank 11. The first stirring rod can rotate in the tank 11, thereby causing the first stirring element 2 to stir the material inside the tank 1 and promote the full mixing between the fuel coal particles.

[0033] The second agitator 3 is disposed inside the tank body 11 and extends vertically. The second agitator 3 is located on one side of the first agitator 2, and the second agitator 3 is rotatable relative to the tank body 11 in the vertical direction, so that the second agitator 3 agitates the material inside the tank body 11. Specifically, as shown... Figure 1-2 As shown, the second agitator 3 is located inside the tank 11, situated to one side of the first agitator 2. The second agitator 3 can rotate within the tank 11, thereby agitating the material. With the rotation of the first agitator 2 and the second agitator 3, the fuel coal is continuously tumbled and stirred within the tank 11, achieving uniform distribution. The presence of the first agitator 2 and the second agitator 3 not only increases the stirring force but also creates cross-flow, helping to break up agglomeration, making the sample more uniform, and further improving the material mixing effect.

[0034] The storage and stirring device 100 for power plant fuel coal testing according to this embodiment of the utility model is equipped with a tank 11 and a cover 12, which effectively prevents external contamination and ensures the accuracy of test results. In particular, during the stirring process, the good airtightness prevents fuel coal leakage, protects the surrounding environment, and ensures the purity of the internal materials. In addition, through the synergistic action of the first stirring element 2 and the second stirring element 3, the material mixing efficiency is significantly improved. The first stirring element 2 is responsible for large-area material agitation, while the second stirring element 3 provides localized enhanced stirring. The combination of the two achieves a rapid and uniform mixing effect, reduces the pre-testing time, ensures sufficient contact between fuel coal particles, and improves stirring efficiency.

[0035] In some embodiments, there are multiple second stirring elements 3, and each of the multiple second stirring elements 3 is rotatably disposed within the tank 11 and spaced apart circumferentially around the first stirring element 2. Specifically, as shown in... Figure 2 As shown, the number of the second stirring element 3 is three (e.g., Figure 1 As shown in the diagram, the three second stirring elements 3 are all located inside the tank 11 and are spaced apart around the first stirring element 2. The first stirring element 2 is located between the three second stirring elements 3, and the three second stirring elements 3 rotate within the tank 11. Thus, the surrounding arrangement of the three second stirring elements 3 ensures sufficient contact between the fuel coal particles and improves the mixing efficiency of the material.

[0036] In some embodiments, the first stirring element 2 includes a first rotating shaft 21 and a plurality of first stirring blades 22. The first rotating shaft 21 is rotatably disposed within the tank body 11, and the plurality of first stirring blades 22 are disposed on the first rotating shaft 21 and spaced circumferentially around the first rotating shaft 21. The first stirring blades 22 extend in the vertical direction. Specifically, as shown... Figure 3 As shown, the first rotating shaft 21 is rotatably disposed inside the tank 11 and the rotation center of the first rotating shaft 21 coincides with the center of the tank 11. The first rotating shaft 21 can rotate within the tank 11. The first stirring blade 22 is a rectangular blade extending in the vertical direction. Multiple first stirring blades 22 are equally spaced along the circumference of the first rotating shaft 21. Thus, the first rotating shaft 21 drives the material in the tank 1 of the multiple first stirring blades 22, thereby improving the stirring efficiency of the first stirring element 2.

[0037] In some embodiments, the second stirring element 3 includes a second rotating shaft 31 and a plurality of second stirring blades 32. The second rotating shaft 31 is disposed inside the tank body 11, and the plurality of second stirring blades 32 are arranged in multiple rows along the circumference of the second rotating shaft 31. Each row includes a plurality of second stirring blades 32 spaced apart in the vertical direction. Specifically, as shown... Figure 3 As shown, the second rotating shaft 31 is located inside the tank 11 and on one side of the first rotating shaft 21. The second rotating shaft 31 can rotate inside the tank 11. The second stirring blade 32 is a vertical rectangular blade. Multiple second stirring blades 32 are evenly distributed on the second rotating shaft 31. Thus, the stirring efficiency is further improved by stirring the material inside the tank 1 through the second stirring element 3.

[0038] In some embodiments, the power plant fuel coal testing and storage stirring device 100 further includes a first drive assembly 4, which is connected to a first stirring element 2 and a second stirring element 3, respectively, so that the first drive assembly 4 drives the first stirring element 2 and the second stirring element 3 to rotate synchronously. Specifically, as shown in the figure... Figure 1 and Figure 2 As shown, the first drive assembly 4 is located outside the tank 11. The first drive assembly 4 is connected to the first stirring element 2 and the second stirring element 3 respectively, so that the first drive assembly 4 drives the first stirring element 2 and the second stirring element 3 to rotate respectively.

[0039] In some embodiments, the first drive assembly 4 includes a gear ring 41, a first gear 42, a drive shaft 43, a first motor 44, a third gear 45 and a fourth gear 46 meshing with each other.

[0040] A toothed ring 41 is located below the tank body 11, and the inner and outer circumferential surfaces of the toothed ring 41 are respectively provided with a first tooth and a second tooth. Specifically, as shown... Figures 1-4 As shown, the toothed ring 41 is annular and the inner circumferential surface of the toothed ring 41 is provided with first teeth evenly distributed on the inner circumferential surface of the toothed ring 41, and the outer circumferential surface of the toothed ring 41 is provided with second teeth evenly distributed on the outer circumferential surface of the toothed ring 41. The lower end face of the tank body 11 is provided with a sliding groove 13, and the toothed ring 41 is connected to the sliding groove 1313 through a sliding rod, so that the toothed ring 14 is located below the tank body 11.

[0041] The first gear 42 is disposed within the gear ring 41 and meshes with the first gear teeth. The lower end of the second stirring element 3 passes through the tank body 11 and is connected to the first gear 42, so that the first gear 42 drives the second stirring element 3 to rotate. Specifically, as shown in the figure... Figures 1-4 As shown, there are multiple first gears 42, and the number of first gears 42 is equal to the number of second stirring elements 3. The second rotating shaft 31 of the second stirring element 3 passes through the bottom of the tank 11 and is mounted on the first gear 42. The first outlet is disposed in the gear ring 41 and meshes with the first tooth, so that the gear ring 41 drives the first gear 42 to rotate, and the first gear 42 drives the second stirring element 3 to rotate.

[0042] The first motor 44 is connected to the drive shaft 43 so that the first motor 44 drives the drive shaft 43 to rotate. The drive shaft is located on one side of the tank 11 and can rotate vertically relative to the tank 11. The lower end of the drive shaft 43 is provided with a second gear 47, which meshes with a second tooth so that the drive shaft 43 drives the gear ring 41 to rotate via the second gear 47. Specifically, as shown... Figures 1-4 As shown, the first motor 44 and the transmission shaft 43 are both located on one side of the tank body 11. The transmission shaft 43 is a vertical shaft extending in the up-down direction. The first motor 44 is located below the transmission shaft 43 and connected to the transmission shaft 43, so that the first motor 44 drives the transmission shaft 43 to rotate. The lower end of the transmission shaft 43 is equipped with a second gear 47. The second gear 47 is located on one side of the gear ring 41 and meshes with the second tooth of the gear ring 41, so that the motor drives the second tooth to rotate through the transmission shaft 43.

[0043] The third gear 45 is located at the upper end of the drive shaft 43. The upper end of the first stirring element 2 extends out of the cover 12 and is connected to the fourth gear 46, so that the drive shaft 43 drives the first stirring element 2 to rotate through the third gear 45 and the fourth gear 46. Specifically, as shown... Figures 1-4 As shown, the third gear 45 passes through the upper end of the transmission shaft 43, and the upper end of the first rotating shaft 21 of the first stirring element 2 passes through the cover 12 and is provided with the first gear 42, so that the transmission shaft 43 drives the first stirring element 2 to rotate through the meshing of the third gear 45 and the fourth gear 46. Thus, the first motor 44 drives the first stirring element 2 and the second stirring element 3 to rotate synchronously through the meshing of the transmission shaft 43 and the gears.

[0044] In some embodiments, such as Figure 3 As shown, the first driving component also includes a connecting rod 48, a fifth gear 49, and a sixth gear 40. The connecting rod 48 is a vertical rod extending in the left-right direction and is rotatably mounted on the cover 12. The fifth gear 49 and the sixth gear 40 are respectively disposed on the left and right sides of the connecting rod 48, and the fifth gear 49 meshes with the third gear 45, and the sixth gear 40 meshes with the fourth gear 46, so that the third gear 45 and the fourth gear 46 mesh through the connecting rod 48, the fifth gear 49, and the sixth gear 40.

[0045] In some embodiments, the power plant fuel coal testing and storage stirring device 100 further includes a second drive assembly 5, which is connected to the cover 12 so that the second drive assembly 5 drives the cover 12 to move in the vertical direction. Specifically, as Figure 1 and Figure 2As shown, the second driving component is located on one side of the tank 11 and connected to the cover 12. The second driving component can drive the cover 12 to move up and down. When it is necessary to add material to the tank 11, the second driving component can drive the cover 12 to move upward so that the cover 12 and the tank 11 are separated. When the material is stirred, the second driving component drives the cover 12 to move downward so that the cover 12 closes the tank 11 and prevents the material from drifting outside the tank 11.

[0046] In some embodiments, the second drive assembly 5 includes a housing 51, a threaded rod (not shown), a movable frame 53, and a second motor 52.

[0047] The shell 51 extends in the vertical direction. Specifically, as shown... Figure 1 As shown, the shell 51 is a rectangular shell extending in the vertical direction, and the shell 51 is disposed on one side of the tank 11.

[0048] The threaded rod is rotatably disposed within the housing 51 and is rotatable relative to the housing 51 in the vertical direction. Specifically, as shown... Figure 1 As shown. The threaded rod is a vertical rod extending in the up-down direction. The threaded rod is set inside the housing 51 and rotates within the housing 51.

[0049] One end of the movable frame 53 passes through the housing 51 and engages with a threaded rod, so that the threaded rod rotates to drive the movable frame 53 to move up and down. The other end of the movable frame 53 is connected to the cover 12, so that the movable frame 53 drives the cover 12 to move. Specifically, as shown... Figure 1 As shown, the movable frame 53 includes a first section, a second section, and a third section connected in sequence. The second section is a vertical section extending in the up-down direction. The first section is located at the upper end of the second section and extends in the left-right direction. The first section is connected to the cover 12. The third section is located at the lower end of the second section and extends in the left-right direction. The third section passes through the threaded rod and is threadedly engaged with the threaded rod. Thus, when the threaded rod rotates, it can drive the third section to move up and down, thereby driving the cover 12 to move up and down through the movable frame 53.

[0050] The second motor 52 is mounted on the housing 51 and connected to the threaded rod, so that the second motor 52 drives the threaded rod to rotate. Thus, the second motor 52 drives the threaded rod to rotate within the housing, thereby providing power to the threaded rod.

[0051] In some embodiments, the storage and stirring device for plant fuel coal testing further includes a sealing ring 6, which is disposed between the tank body 11 and the cover 12 to seal the gap between the tank body 11 and the cover 12. Specifically, as Figure 1 As shown, the sealing ring 6 is fitted at the opening of the tank body 11. When the cover 12 covers the tank body 11, the sealing ring 6 is located between the tank body 11 and the cover 12, so that the sealing ring 6 seals the gap between the tank body 11 and the cover 12, preventing the material from escaping into the air during stirring.

[0052] In some embodiments, the power plant fuel coal testing and storage stirring device 100 further includes an electromagnetic discharge valve 7, which is located at the bottom of the tank 11 and communicates with the tank 11, so that the fuel in the tank 11 can be discharged through the electromagnetic discharge valve 7. Specifically, as Figure 2 As shown, the bottom of the tank 11 is provided with a discharge port, and the electromagnetic discharge valve 7 is located at the bottom of the tank 11 and is connected to the discharge port. When the material in the tank 11 is mixed evenly, the electromagnetic discharge valve 7 is opened to allow the material to be discharged from the electromagnetic discharge valve 7.

[0053] The following is based on Figures 1-4 This invention describes a storage and stirring device 100 for power plant fuel coal analysis according to an embodiment of the present invention. The device includes a base plate 8, with a stirring tank 1 fixedly connected to the top of the base plate 8 via a bracket. An electromagnetic discharge valve 7 is connected to the bottom of the stirring tank 1. Three second stirring elements 3 are movably connected inside the stirring tank 1, arranged in a ring-like pattern. The bottom of each second stirring element 3 extends to the bottom of the stirring tank 1 and is fixedly connected to a first gear 42. A groove 13 is provided at the bottom of the stirring tank 1, and a gear ring 41 is movably connected inside the groove 13. The gear ring 41 has first teeth and second teeth on its inner and outer sides, respectively. The first gear 42 meshes with the gear ring 41. A fixing block 9 is fixedly connected to the surface of the stirring tank 1, and a drive shaft 43 is movably connected inside the fixing block 9. A second gear 47 is fixedly connected to the bottom of the drive shaft 43, meshing with the gear ring 41. A [missing information - likely a device name] is fixedly connected to the top of the drive shaft 43. The third gear 45, the top of the base plate 8 is fixedly connected to the housing 51, the inside of the housing 51 is movably connected to the threaded rod, the surface of the threaded rod is threadedly connected to the movable frame 53, the movable frame 53 is in contact with the inner wall of the housing 51, the top of the housing 51 is fixedly connected to the second motor 52, the output end of the second motor 52 is fixedly connected to the threaded rod, the surface of the movable frame 53 is fixedly connected to the cover 12, the bottom of the cover 12 is fixedly connected to the sealing ring 6, the sealing ring 6 is in contact with the mixing tank 1, the inside of the cover 12 is movably connected to the first stirring element 2, the top of the first stirring element 2 is fixedly connected to the fourth gear 46, the top of the cover 12 is fixedly connected to the fixing block 9, the inside of the fixing block 9 is movably connected to the connecting rod 48, the left and right ends of the connecting rod 48 are fixedly connected to the fifth gear 49 and the sixth gear 40 respectively, the fifth gear 49 and the sixth gear 40 mesh with the third gear 45 and the fourth gear 46 respectively, the top of the base plate 8 is fixedly connected to the first motor 44, the output end of the first motor 44 is fixedly connected to the second gear 47.

[0054] The working process of the power plant fuel coal chemical testing and storage stirring device 100 in this embodiment of the utility model is as follows:

[0055] In use, the operator can start the second motor 52 to rotate, driving the threaded rod to rotate, which in turn moves the movable frame 53 and the cover 12 upward. Then, the operator puts the material to be mixed into the mixing tank 1, and then starts the second motor 52 to rotate in the opposite direction, causing the cover 12 and the first stirring component 2 to move downward, so that the sealing ring 6 is tightly attached to the mixing tank 1, thereby preventing coal dust from spreading to the outside of the mixing tank 1. The downward movement of the cover 12 will also cause the support block, connecting rod 48, fifth gear 49 and sixth gear 40 to move downward, so that the fifth gear 49 meshes with the third gear 45. Then, the operator starts the first motor 44 to rotate, which drives the second gear 47 to rotate, which in turn drives the gear ring 41 to rotate, which in turn drives the first gear 42 to rotate, which in turn drives the three second stirring components 3 to rotate synchronously. When the second gear 47 rotates, it drives the transmission shaft 43 and the third gear 45 to rotate, which in turn drives the sixth gear 40 and the connecting rod 48 to rotate, which in turn drives the fourth gear 46 and the first stirring component 2 to rotate. The second stirring component 3 and the first stirring component 2 rotate synchronously, which in turn rapidly stirs the material in the mixing tank 1, thereby improving the stirring efficiency.

[0056] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to 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 of this utility model.

[0057] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0058] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0059] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0060] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0061] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A storage and stirring device for testing and processing fuel coal in power plants, characterized in that, include: A mixing tank, comprising a tank body and a lid, the lid being used to cover the tank body to close the tank body; A first agitator is disposed inside the mixing tank and extends vertically. The first agitator is rotatable relative to the tank body in the vertical direction so as to agitate the material inside the tank. A second agitator is disposed inside the tank and extends vertically. The second agitator is rotatable relative to the tank body in the vertical direction so as to agitate the material inside the tank.

2. The power plant fuel coal testing and storage mixing device according to claim 1, characterized in that, There are multiple second stirring elements, and each of the multiple second stirring elements is rotatably disposed in the tank and spaced apart around the first stirring element in the circumferential direction.

3. The power plant fuel coal testing and storage stirring device according to claim 1, characterized in that, The first stirring component includes a first rotating shaft and a plurality of first stirring blades. The first rotating shaft is rotatably disposed in the tank body, and the plurality of first stirring blades are disposed on the first rotating shaft and spaced apart circumferentially around the first rotating shaft. The first stirring blades extend in the vertical direction.

4. The storage and stirring device for power plant fuel coal testing according to claim 1, characterized in that, The second stirring component includes a second rotating shaft and a plurality of second stirring blades. The second rotating shaft is disposed in the tank body, and the plurality of second stirring blades are arranged in multiple rows along the circumference of the second rotating shaft. Each row includes a plurality of second stirring blades spaced apart in the vertical direction.

5. The storage and stirring device for power plant fuel coal testing according to claim 1, characterized in that, It also includes a first drive assembly, which is connected to the first stirring element and the second stirring element respectively, so that the first drive assembly drives the first stirring element and the second stirring element to rotate synchronously.

6. The power plant fuel coal testing and storage stirring device according to claim 5, characterized in that, The first driving component includes: A toothed ring, wherein the toothed ring is disposed below the tank body and the inner and outer circumferential surfaces of the toothed ring are respectively provided with a first tooth and a second tooth; The first gear is disposed inside the gear ring and meshes with the first tooth. The lower end of the second stirring element passes through the tank and is connected to the first gear so that the first gear drives the second stirring element to rotate. A drive shaft and a first motor are provided. The first motor is connected to the drive shaft so that the first motor drives the drive shaft to rotate. The drive shaft is located on one side of the tank and can rotate about vertically relative to the tank. A second gear is provided at the lower end of the drive shaft. The second gear meshes with the second tooth so that the drive shaft drives the gear ring to rotate through the second gear. A third gear and a fourth gear mesh with each other. The third gear is located at the upper end of the transmission shaft. The upper end of the first stirring element extends out of the cover and is connected to the fourth gear, so that the transmission shaft drives the first stirring element to rotate through the third gear and the fourth gear.

7. The storage and stirring device for power plant fuel coal testing according to claim 1, characterized in that, It also includes a second drive assembly connected to the cover body, so that the second drive assembly drives the cover body to move in the up-down direction.

8. The power plant fuel coal testing and storage stirring device according to claim 7, characterized in that, The second driving component includes: A housing that extends vertically; A threaded rod, which is rotatably disposed within the housing and rotatable relative to the housing about the vertical direction; A movable frame, one end of which passes through the housing and engages with the threaded rod, so that the threaded rod can rotate to drive the movable frame to move up and down; the other end of the movable frame is connected to the cover so that the movable frame can drive the cover to move. A second motor is mounted on the housing and connected to the threaded rod so that the second motor drives the threaded rod to rotate.

9. The power plant fuel coal testing and storage stirring device according to claim 1, characterized in that, It also includes a sealing ring disposed between the can body and the cover body to seal the gap between the can body and the cover body.

10. The power plant fuel coal testing and storage stirring device according to claim 1, characterized in that, It also includes an electromagnetic discharge valve, which is located at the bottom of the tank and communicates with the tank so that the fuel in the tank can be discharged through the electromagnetic discharge valve.

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