Uniform material distributing device for coal sample air-through drying machine

Abstract

The utility model discloses a kind of even material distribution devices for coal sample air permeation dryer, including connecting cover and the air cylinder connected in the bottom of connecting cover, the connecting cover is provided with feed inlet, the air cylinder is provided with discharge port, the connecting cover is connected with the smoothing mechanism for coal sample smoothing, the smoothing mechanism includes motor, rotating shaft, two smoothing plates, the motor is used to drive rotating shaft rotation, the rotating shaft is connected with two smoothing plates, and rotating shaft is connected with the drive mechanism for driving smoothing plate lifting. The utility model carries out scraping treatment to the distributed coal sample, ensures that the thickness of material layer is consistent, reaches good uniform distribution effect, makes subsequent coal sample drying uniform, further, rotating handle drives driving tooth to rotate, realizes the synchronous lifting operation of two smoothing plates, is convenient for to smoothing plate position adjustment, satisfies the coal sample of containing different volume and carries out scraping treatment, flexible and convenient operation, strong applicability.

Description

Technical Field

[0001] This utility model relates to the field of coal sample air-drying technology, specifically a uniform material distribution device for a coal sample air-drying machine. Background Technology

[0002] A coal sample air-drying dryer is a specialized piece of equipment for the rapid and uniform drying of coal samples. It uses a built-in high-efficiency fan to drive a large volume of room-temperature or low-temperature hot air through the coal sample layer, forcibly accelerating the evaporation of moisture. After air-drying, the coal sample has a stable moisture content, providing an accurate and reliable basis for subsequent experiments such as pulverization, industrial analysis, elemental determination, and calorific value calculation. This is a crucial prerequisite for ensuring the accuracy of coal quality testing data.

[0003] When drying coal samples, if the samples are piled up in the air vent of the dryer, the top of the coal sample will be uneven. This means that the air velocity is high in the thin layer of coal sample, which may be over-dried, while the air velocity is low in the thick layer, which may even form a "short circuit" and fail to dry completely. This uneven drying will result in inconsistent moisture content in the final sample, affecting the accuracy and representativeness of the test results. Utility Model Content

[0004] The purpose of this invention is to provide a uniform material distribution device for a coal sample air-drying machine, which ensures consistent material layer thickness, achieves good uniform distribution, and makes subsequent coal sample drying uniform, thus solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a uniform material distribution device for a coal sample air-drying machine, comprising a connecting cover and an air-permeable cylinder connected to the bottom of the connecting cover. The connecting cover is provided with a feed inlet, and the air-permeable cylinder is provided with a discharge outlet. The connecting cover is connected to a smoothing mechanism for smoothing the coal sample. The smoothing mechanism includes a motor, a rotating shaft, and two smoothing plates. The motor is used to drive the rotating shaft to rotate. The rotating shaft is connected to the two smoothing plates, and the rotating shaft is connected to a drive mechanism for driving the smoothing plates to lift and lower.

[0006] Preferably, the smoothing mechanism further includes two inclined surfaces disposed on the smoothing plate.

[0007] Preferably, the motor is connected to the top of the connecting cover, and the power output end of the motor is connected to the rotating shaft.

[0008] Preferably, a uniform plate is connected inside the connecting cover, the rotating shaft passes through the uniform plate, and the rotating shaft is rotatably connected to the uniform plate.

[0009] Preferably, the driving mechanism includes a handle, a connecting rod, a connecting shaft, a driving tooth, a driven tooth, a guide interface, a guide groove, a screw, a threaded groove, and a lifting rod. The handle is used to drive the connecting shaft and the driving tooth to rotate synchronously. The driving tooth is connected to the driven tooth, and the driven tooth is connected to the top of the screw. The guide interface is used to guide the screw. The lifting rod is slidably connected to the guide groove, which is located inside the rotating shaft. The screw matches the threaded groove and is used to drive the lifting rod to move up and down. The two ends of the connecting rod are connected to the lifting rod and the flat plate.

[0010] Preferably, the two ends of the connecting shaft are connected to the handle and the drive teeth, and the connecting shaft is rotatably connected to the rotating shaft, and the drive teeth are meshed with the driven teeth.

[0011] Preferably, the guide interface is connected inside the rotating shaft, and the screw is rotatably connected to the guide interface.

[0012] Preferably, the threaded groove is disposed inside the lifting rod, and the screw is threadedly connected to the threaded groove.

[0013] Preferably, the inlet and outlet are detachably connected to a sealing door.

[0014] Compared with existing technologies, the beneficial effects of this utility model are as follows: This utility model, by setting up a leveling mechanism and a driving mechanism, uses a motor to drive the rotating shaft to rotate, which synchronously drives the connecting rod and two leveling plates to rotate, thus leveling the distributed coal sample, ensuring a consistent material layer thickness, achieving a good uniform distribution effect, and making the subsequent coal sample dry evenly. Furthermore, rotating the handle drives the driving gear to rotate, which in turn drives the driven gear to rotate, thereby realizing the rotation of the screw. The screw cooperates with the lifting rod to achieve synchronous lifting and lowering of the two leveling plates, facilitating the adjustment of the leveling plate position, meeting the requirements for accommodating coal samples of different volumes for leveling, making operation flexible and convenient, and highly applicable. Attached Figure Description

[0015] Figure 1 This is a perspective view of the present utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0017] Figure 3 This is a schematic diagram of the connection structure between the rotating shaft and the flat plate of this utility model;

[0018] Figure 4 This is a schematic diagram of the connection structure between the drive mechanism and the flat plate of this utility model.

[0019] In the diagram: 1. Ventilation cylinder; 2. Connecting cover; 3. Motor; 4. Air supply pipe; 5. Sealing door; 6. Rotating shaft; 7. Equalizing plate; 8. Handle; 9. Connecting rod; 10. Inclined surface; 11. Smoothing plate; 12. Feed inlet; 13. Discharge outlet; 14. Connecting shaft; 15. Drive gear; 16. Driven gear; 17. Guide interface; 18. Guide groove; 19. Screw; 20. Threaded groove; 21. Lifting rod. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1 to 4 This utility model provides a uniform material distribution device for a coal sample air-drying machine, including a connecting cover 2 and an air-permeable cylinder 1 connected to the bottom of the connecting cover 2. The connecting cover 2 is provided with a feed inlet 12, and the air-permeable cylinder 1 is provided with a discharge outlet 13. The connecting cover 2 is connected to a smoothing mechanism for smoothing the coal sample. The smoothing mechanism includes a motor 3, a rotating shaft 6, and two smoothing plates 11. The ends of the smoothing plates 11 are as close as possible to the inner wall of the air-permeable cylinder 1 to achieve large-area top smoothing treatment of the coal sample. The motor 3 is used to drive the rotating shaft 6 to rotate. The rotating shaft 6 is connected to the two smoothing plates 11, and the rotating shaft 6 is connected to a drive mechanism for driving the smoothing plates 11 to rise and fall.

[0022] The top of the connecting cover 2 is connected to a gas supply pipe 4 for conveying hot gas, and the bottom of the ventilator 1 is evenly provided with vent holes. The gas supply pipe 4 delivers hot gas to the connecting cover 2 and the ventilator 1. The hot gas passes through the coal sample and is discharged from the vent holes, forcibly accelerating the evaporation of moisture and improving the drying effect.

[0023] After the coal sample is placed into the ventilation cylinder 1, the motor 3 drives the rotating shaft 6 to rotate. The rotating shaft 6 drives the connecting rod 9 and the two smoothing plates 11 to rotate, which scrapes the distributed coal sample to ensure that the material layer thickness is consistent and achieves a good uniform distribution effect, so that the subsequent coal sample dries evenly.

[0024] The leveling mechanism also includes two inclined planes 10, which are set on the leveling plate 11. The inclined planes 10 are smooth surfaces that will "guide" excess coal samples to the front instead of pushing them out, making the leveling operation easier.

[0025] Motor 3 is connected to the top of connecting cover 2, and the power output end of motor 3 is connected to rotating shaft 6.

[0026] A uniform plate 7 is connected inside the connecting cover 2, and a rotating shaft 6 passes through the uniform plate 7, with the rotating shaft 6 rotatably connected to the uniform plate 7. The uniform plate 7 stabilizes the rotation of the rotating shaft 6, thereby stabilizing the rotation of the two smoothing plates 11. The uniform plate 7 has multiple evenly distributed through holes, which effectively guide the hot air, transforming the airflow from turbulent to a uniform and stable laminar flow before it passes through the coal sample layer. This ensures that the coal sample at each location is penetrated by an equal amount of airflow at the same rate, avoiding the problem of excessively rapid drying in certain areas or insufficient drying in certain corners.

[0027] The drive mechanism includes a handle 8, a connecting rod 9, a connecting shaft 14, a drive gear 15, a driven gear 16, a guide interface 17, a guide groove 18, a screw 19, a threaded groove 20, and a lifting rod 21. The handle 8 is used to drive the connecting shaft 14 and the drive gear 15 to rotate synchronously. The drive gear 15 is connected to the driven gear 16, and the driven gear 16 is connected to the top of the screw 19. The guide interface 17 is used to guide the screw 19. The lifting rod 21 is slidably connected to the guide groove 18, which is located inside the rotating shaft 6. The screw 19 is matched with the threaded groove 20, and the screw 19 is used to drive the lifting rod 21 to rise and fall. The two ends of the connecting rod 9 are connected to the lifting rod 21 and the flat plate 11.

[0028] The manual rotation of the handle 8 drives the connecting shaft 14 and the drive gear 15 to rotate. The drive gear 15 drives the driven gear 16 to rotate, which in turn drives the screw 19 to rotate. The screw 19 cooperates with the threaded groove 20 to realize the lifting action of the lifting rod 21, which in turn drives the connecting rod 9 and the two smoothing plates 11 to move up and down synchronously, changing the position of the smoothing plates 11 to accommodate coal samples of different volumes for leveling. The operation is flexible and convenient.

[0029] Both ends of the connecting shaft 14 are connected to the handle 8 and the drive gear 15, and the connecting shaft 14 is rotatably connected to the rotating shaft 6, making the drive gear 15 rotate stably. The guide interface 17 also serves to guide the driven gear 16, thereby ensuring the transmission effect between the driven gear 16 and the drive gear 15. The drive gear 15 and the driven gear 16 mesh with each other, resulting in high transmission efficiency and ensuring a constant instantaneous transmission ratio.

[0030] The guide interface 17 is connected inside the rotating shaft 6, and the screw 19 is rotatably connected to the guide interface 17.

[0031] The threaded groove 20 is provided inside the lifting rod 21, and the screw 19 is threadedly connected to the threaded groove 20.

[0032] The feed inlet 12 and the discharge outlet 13 are detachably connected to sealing doors 5. Opening the upper sealing door 5 allows coal samples to be placed into the ventilation cylinder 1 for drying. After drying is complete, opening the lower sealing door 5 allows the dried coal sample to be removed.

[0033] Furthermore, when adjusting the position of the flat plate 11, the upper sealing door 5 is opened, and the handle 8 is easily operated through the feed inlet 12.

[0034] Working principle: Coal samples are fed into the ventilation cylinder 1 through the feed inlet 12, and then the sealing door 5 is closed. Motor 3 drives the rotating shaft 6 to rotate in the following direction: Figure 2 The arrow points to the center, synchronously rotating the connecting rod 9 and the two smoothing plates 11. The smoothing plates 11 level the coal sample, ensuring a consistent material layer thickness and achieving good uniform distribution, thus ensuring even drying of the coal sample later. Hot air enters the connecting hood 2 through the gas delivery pipe 4 and moves from top to bottom. The hot air passes through the uniform plate 7, which guides the airflow, allowing it to penetrate the coal sample at the same rate. Furthermore, when different amounts of coal sample are added, the handle 8 can be rotated to drive the connecting shaft 14 and the drive gear 15 to rotate. The drive gear 15 drives the driven gear 16 to rotate, which in turn drives the screw 19 to rotate. The screw 19 drives the lifting rod 21 to rise and fall. The lifting rod 21 synchronously moves the connecting rod 9 and the two smoothing plates 11 up and down, changing the position of the two smoothing plates 11, thus accommodating coal samples of different volumes for leveling. The operation is flexible, convenient, and highly practical.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A uniform material distribution device for a coal sample air-drying machine, comprising a connecting cover (2) and an air-permeable cylinder (1) connected to the bottom of the connecting cover (2), wherein the connecting cover (2) is provided with a feed inlet (12) and the air-permeable cylinder (1) is provided with a discharge outlet (13), characterized in that, The connecting cover (2) is connected to a smoothing mechanism for smoothing coal samples. The smoothing mechanism includes a motor (3), a rotating shaft (6), and two smoothing plates (11). The motor (3) is used to drive the rotating shaft (6) to rotate. The rotating shaft (6) is connected to the two smoothing plates (11), and the rotating shaft (6) is connected to a drive mechanism for driving the smoothing plates (11) to rise and fall.

2. The uniform material distribution device for a coal sample air-drying machine according to claim 1, characterized in that, The smoothing mechanism also includes two inclined surfaces (10) disposed on the smoothing plate (11).

3. The uniform material distribution device for a coal sample air-drying machine according to claim 1, characterized in that, The motor (3) is connected to the top of the connecting cover (2), and the power output end of the motor (3) is connected to the rotating shaft (6).

4. The uniform material distribution device for a coal sample air-drying machine according to claim 3, characterized in that, The connecting cover (2) is connected to a uniform plate (7), and the rotating shaft (6) passes through the uniform plate (7) and is rotatably connected to the uniform plate (7).

5. A uniform material distribution device for a coal sample air-drying machine according to claim 1, characterized in that, The driving mechanism includes a handle (8), a connecting rod (9), a connecting shaft (14), a driving tooth (15), a driven tooth (16), a guide interface (17), a guide groove (18), a screw (19), a threaded groove (20), and a lifting rod (21). The handle (8) is used to drive the connecting shaft (14) and the driving tooth (15) to rotate synchronously. The driving tooth (15) is connected to the driven tooth (16). The driven tooth (16) is connected to the top of the screw (19). The guide interface (17) is used to guide the screw (19). The lifting rod (21) is slidably connected to the guide groove (18). The guide groove (18) is set in the rotating shaft (6). The screw (19) is matched with the threaded groove (20), and the screw (19) is used to drive the lifting rod (21) to rise and fall. The two ends of the connecting rod (9) are connected to the lifting rod (21) and the flat plate (11).

6. The uniform material distribution device for a coal sample air-drying machine according to claim 5, characterized in that, The two ends of the connecting shaft (14) are connected to the handle (8) and the drive gear (15), and the connecting shaft (14) is rotatably connected to the rotating shaft (6). The drive gear (15) is meshed with the driven gear (16).

7. A uniform material distribution device for a coal sample air-drying machine according to claim 5, characterized in that, The guide interface (17) is connected inside the rotating shaft (6), and the screw (19) is rotatably connected to the guide interface (17).

8. A uniform material distribution device for a coal sample air-drying machine according to claim 5, characterized in that, The threaded groove (20) is provided inside the lifting rod (21), and the screw (19) is threadedly connected to the threaded groove (20).

9. A uniform material distribution device for a coal sample air-drying machine according to claim 1, characterized in that, The feed inlet (12) and the discharge outlet (13) are detachably connected to a sealing door (5).

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