Pulverized coal drying device

Abstract

The utility model provides a pulverized coal drying device, and relates to the technical field of pulverized coal drying, the pulverized coal drying device comprises a rotating shaft, the rotating shaft is rotatably connected to the inner bottom surface of a drying box, an annular placing box is fixedly installed at a port of one end of the rotating shaft, and a gear is fixedly installed on the surface of the outer wall of the rotating shaft; a U-shaped rod is fixedly installed on the surface of the bottom of the drying box, a sliding plate is slidably connected to the surface of the outer wall of the U-shaped rod, a rack is fixedly installed on the side face of the sliding plate, a supporting plate is fixedly installed on the surface of the bottom of the drying box, and an electric telescopic rod is fixedly installed on the surface of the supporting plate. And the gear drives the rotating shaft to rotate, the rotating shaft drives the annular containing box to rotate, the annular containing box rotates to achieve rotation of the pulverized coal, and the pulverized coal in the annular containing box can be dried more evenly by making continuous contact with the high-temperature area of the heater.

Description

Technical Field

[0001] This utility model relates to the field of coal powder drying technology, and in particular to a coal powder drying device. Background Technology

[0002] Powdered coal is a powdery material produced by processing coal. The reason for making it into powder is to improve the combustion rate of coal and avoid waste of resources. Before coal is made into powder, it usually needs to be dried after being pre-crushed into small coal pieces to facilitate subsequent fine grinding. Drying equipment is essential for this purpose.

[0003] Existing coal powder drying equipment mostly uses only heating to dry small coal pieces, which results in excessively long drying times and a dry outer layer but a damp inner layer. Utility Model Content

[0004] The purpose of this invention is to address the problem that existing coal powder drying devices mostly rely solely on heating when drying small coal pieces, resulting in excessively long drying times and a dry outer layer while the inner layer remains damp. This invention provides a coal powder drying device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a coal powder drying device, comprising a drying box, two support legs fixedly installed on both sides of the drying box, a door connected to the surface of the drying box via hinges, a heater fixedly installed on the inner wall surface of the drying box, a rotating device provided on the inner bottom surface of the drying box, the rotating device comprising a rotating shaft rotatably connected to the inner bottom surface of the drying box, an annular placement box fixedly installed at one end of the rotating shaft, a gear fixedly installed on the outer wall surface of the rotating shaft, a U-shaped rod fixedly installed on the bottom surface of the drying box, a sliding plate slidably connected to the outer wall surface of the U-shaped rod, a rack fixedly installed on the side of the sliding plate, a support plate fixedly installed on the bottom surface of the drying box, and an electric telescopic rod fixedly installed on the surface of the support plate.

[0006] The effect achieved by the above components is as follows: the gear drives the rotating shaft to rotate, the rotating shaft drives the annular placement box to rotate, and the rotation of the annular placement box causes the coal powder to rotate, so that the coal powder can be dried more evenly by continuously contacting the high temperature area of ​​the heater.

[0007] Preferably, the output end of the electric telescopic rod is fixedly connected to the slide plate, and the slide plate is fixedly connected to the U-shaped rod via the electric telescopic rod.

[0008] The effect achieved by the above components is that the electric telescopic rod enables the slide to move on the surface of the U-shaped rod.

[0009] Preferably, the gear and rack mesh with each other, and the rotating shaft is rotatably connected to the inner bottom surface of the drying chamber via the gear.

[0010] The effect achieved by the above components is that the gears drive the shaft to rotate.

[0011] Preferably, the inner wall surfaces on both sides of the drying oven are provided with a dispersing device, the dispersing device includes a vertical groove, the vertical groove is opened on the inner wall surfaces on both sides of the drying oven, and a horizontal bar is slidably connected between the two vertical grooves.

[0012] The effect achieved by the above components is that the vertical grooves allow the horizontal strips to move.

[0013] Preferably, a short rod is fixedly installed on the bottom surface of the crossbar, a motor is fixedly installed at the end of the short rod away from the crossbar, a rotating rod is fixedly installed at the output end of the motor, and multiple dispersing rods are distributed in a ring on the outer wall surface of the rotating rod.

[0014] The effect achieved by the above-mentioned components is that the dispersing rod disperses the coal powder inside the annular placement box.

[0015] Preferably, a sealing sleeve is fixedly installed on the top surface of the drying oven, and a long rod is fixedly installed on the surface of the crossbar away from the short rod, with the long rod and the sealing sleeve being slidably connected.

[0016] The effect achieved by the above components is that the long rods drive the horizontal bars to move inside the vertical grooves.

[0017] Preferably, the top surface of the drying oven has a groove, a movable plate is slidably connected inside the groove, a rod is fixedly installed on the surface of the movable plate, and multiple insertion holes are evenly formed on the outer wall surface of the rod.

[0018] The effect achieved by the above components is that the design of the insertion rod and the insertion hole restricts the position of the long rod.

[0019] Preferably, a rectangular plate is fixedly installed on the top surface of the drying oven, and a spring is fixedly installed between the rectangular plate and the movable plate.

[0020] The effect achieved by the above components is that the spring restricts the position of the moving plate inside the groove.

[0021] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0022] In this invention, a rotating device is set up, which drives the rotating shaft to rotate through a gear. The rotating shaft drives the annular placement box to rotate, and the rotation of the annular placement box causes the coal powder to rotate. This allows the coal powder to continuously contact the high-temperature area of ​​the heater, making the coal powder inside the annular placement box dry more evenly. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0024] Figure 2 This utility model Figure 1 A schematic diagram of the structure viewed from below;

[0025] Figure 3 This is a schematic diagram of the internal structure of the drying oven of this utility model;

[0026] Figure 4 This utility model Figure 1 A schematic diagram of the three-dimensional structure at point A in the middle.

[0027] Legend: 1. Drying oven; 2. Support legs; 3. Door; 4. Rotating device; 41. Rotating shaft; 42. Annular placement box; 43. Gear; 44. U-shaped rod; 45. Slide plate; 46. Rack; 47. Support plate; 48. Electric telescopic rod; 5. Dispersing device; 501. Vertical groove; 502. Horizontal bar; 503. Short rod; 504. Motor; 505. Rotating rod; 506. Dispersing rod; 507. Long rod; 508. Sealing sleeve; 509. Groove; 510. Moving plate; 511. Insert rod; 512. Insertion hole; 513. Rectangular plate; 514. Spring; 6. Heater. Detailed Implementation

[0028] Example 1, as Figure 2-3As shown, a coal powder drying device includes a drying box 1. Two support legs 2 are fixedly installed on both sides of the drying box 1. A door 3 is connected to the surface of the drying box 1 via a hinge. A heater 6 is fixedly installed on the inner wall surface of the drying box 1. A rotating device 4 is provided on the inner bottom surface of the drying box 1. The rotating device 4 includes a rotating shaft 41, which is rotatably connected to the inner bottom surface of the drying box 1. An annular placement box 42 is fixedly installed at one end of the rotating shaft 41. A gear 43 is fixedly installed on the outer wall surface of the rotating shaft 41. A U-shaped rod 44 is fixedly installed on the bottom surface of the drying box 1. A sliding plate 45 is slidably connected to the outer wall surface of the U-shaped rod 44. A rack 46 is fixedly installed on the side of the sliding plate 45. A support plate 47 is fixedly installed on the bottom surface of the drying box 1. An electric telescopic rod 48 is fixedly installed on the surface of the support plate 47. The gear 43 drives the rotating shaft 41 to rotate, which in turn drives the annular placement box 42 to rotate. The rotation of the annular placement box 42 causes the coal powder to rotate, so that the coal powder can be dried more evenly by continuously contacting the high-temperature area of ​​the heater 6.

[0029] Reference Figure 2-3 As shown in this embodiment: the output end of the electric telescopic rod 48 is fixedly connected to the slide plate 45, and the slide plate 45 is fixedly connected to the U-shaped rod 44 by means of the electric telescopic rod 48. The electric telescopic rod 48 is designed to drive the slide plate 45 to move on the surface of the U-shaped rod 44.

[0030] Reference Figure 2-3 As shown in this embodiment: the gear 43 and the rack 46 mesh with each other, and the rotating shaft 41 is rotatably connected to the inner bottom surface of the drying box 1 by means of the gear 43. The gear 43 is designed to drive the rotating shaft 41 to rotate.

[0031] Reference Figure 3-4As shown in this embodiment: Dispersing devices 5 are provided on both inner wall surfaces of the drying chamber 1. Each dispersing device 5 includes a vertical groove 501, which is formed on both inner wall surfaces of the drying chamber 1. A horizontal bar 502 is slidably connected between two vertical grooves 501. The vertical grooves 501 allow the horizontal bar 502 to move. A short rod 503 is fixedly installed on the bottom surface of the horizontal bar 502. A motor 504 is fixedly installed at the end of the short rod 503 away from the horizontal bar 502. A rotating rod 505 is fixedly installed at the output end of the motor 504. Multiple dispersing rods 506 are distributed in a ring on the outer wall surface of the rotating rod 505. The dispersing rods 506 disperse the coal powder inside the annular placement box 42. A sealing sleeve 508 is fixedly installed on the top surface of the drying chamber 1. The horizontal bar 502 is located away from the horizontal bar 502. A long rod 507 is fixedly installed on one end of the short rod 503. The long rod 507 and the sealing sleeve 508 are slidably connected. The long rod 507 drives the horizontal bar 502 to move inside the vertical groove 501. A groove 509 is opened on the top surface of the drying box 1. A moving plate 510 is slidably connected inside the groove 509. An insert rod 511 is fixedly installed on the surface of the moving plate 510. Multiple insertion holes 512 are evenly opened on the outer wall surface of the long rod 507. The insertion rod 511 and the insertion holes 512 limit the position of the long rod 507. A rectangular plate 513 is fixedly installed on the top surface of the drying box 1. A spring 514 is fixedly installed between the rectangular plate 513 and the moving plate 510. The spring 514 limits the position of the moving plate 510 inside the groove 509.

[0032] Working principle: When the device is needed, first open the box door 3, then place the pulverized coal inside the annular placement box 42, then start the heater 6, then close the box door 3, and then start the electric telescopic rod 48. The start of the electric telescopic rod 48 drives the sliding plate 45 to move on the surface of the U-shaped rod 44. The movement of the sliding plate 45 on the surface of the U-shaped rod 44 drives the rack 46 to move. The movement of the rack 46 meshes with the gear 43, thereby causing the gear 43 to rotate. The rotation of the gear 43 drives the rotating shaft 41 to rotate, and the rotation of the rotating shaft 41 drives the annular placement box 42 to rotate. 2. The rotation of the annular placement box 42 causes the coal powder to rotate, allowing it to continuously contact the high-temperature area of ​​the heater 6, thus making the coal powder inside the annular placement box 42 dry more evenly. When it is necessary to improve the drying efficiency of the coal powder, the sliding plate 510 can be slid before the coal powder is dried, so that the sliding plate 510 moves inside the groove 509. The movement of the sliding plate 510 inside the groove 509 will compress the spring 514, causing the spring 514 to be compressed. At the same time, the movement of the sliding plate 510 inside the groove 509 also... The movable insertion rod 511 moves, causing it to move out of the insertion hole 512. The separation of the insertion rod 511 and the insertion hole 512 causes the long rod 507 to lose its limit. At this point, the long rod 507 can be pressed downwards. The downward movement of the long rod 507 causes the horizontal bar 502 to move downwards inside the vertical groove 501. The downward movement of the horizontal bar 502 inside the vertical groove 501 causes the short rod 503 to move downwards. The downward movement of the short rod 503 causes the motor 504, the rotating rod 505, and the dispersing rod 506 to move downwards. When the dispersing rod 506 moves downwards... After moving into the annular placement box 42, the moving plate 510 is released, and the spring force of the spring 514 causes the insertion rod 511 to be reinserted into the corresponding insertion hole 512, thereby limiting the position of the long rod 507. Then, the motor 504 is started, which drives the rotating rod 505 to rotate. The rotation of the rotating rod 505 drives the dispersing rod 506 to rotate, thereby dispersing the coal powder inside the annular placement box 42, so that the coal powder can fully contact the high-temperature air inside the drying chamber 1, thereby achieving the effect of accelerating the drying efficiency.

[0033] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may use the disclosed technical content to make changes or modifications to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model, without departing from the scope of the utility model's technical solution, still fall within the protection scope of this utility model's technical solution. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood through specific circumstances.

Claims

1. A coal powder drying device, comprising a drying box (1), wherein two support legs (2) are fixedly installed on both sides of the drying box (1), a door (3) is connected to the surface of the drying box (1) by a hinge, and a heater (6) is fixedly installed on the inner wall surface of the drying box (1), characterized in that: The drying box (1) is provided with a rotating device (4) on the inner bottom surface. The rotating device (4) includes a rotating shaft (41). The rotating shaft (41) is rotatably connected to the inner bottom surface of the drying box (1). A ring-shaped placement box (42) is fixedly installed at one end of the rotating shaft (41). A gear (43) is fixedly installed on the outer wall surface of the rotating shaft (41). A U-shaped rod (44) is fixedly installed on the bottom surface of the drying box (1). A sliding plate (45) is slidably connected to the outer wall surface of the U-shaped rod (44). A rack (46) is fixedly installed on the side of the sliding plate (45). A support plate (47) is fixedly installed on the bottom surface of the drying box (1). An electric telescopic rod (48) is fixedly installed on the surface of the support plate (47).

2. The pulverized coal drying device according to claim 1, characterized in that: The output end of the electric telescopic rod (48) is fixedly connected to the slide plate (45), and the slide plate (45) is fixedly connected to the U-shaped rod (44) by means of the electric telescopic rod (48).

3. The pulverized coal drying device according to claim 2, characterized in that: The gear (43) and rack (46) mesh with each other, and the shaft (41) is rotatably connected to the bottom of the drying box (1) by means of the gear (43).

4. The pulverized coal drying device according to claim 3, characterized in that: The drying box (1) is provided with a dispersing device (5) on both sides of the inner wall surface. The dispersing device (5) includes a vertical groove (501). The vertical groove (501) is opened on both sides of the inner wall surface of the drying box (1). A horizontal strip (502) is slidably connected between the two vertical grooves (501).

5. A pulverized coal drying device according to claim 4, characterized in that: A short rod (503) is fixedly installed on the bottom surface of the horizontal bar (502). A motor (504) is fixedly installed at the end of the short rod (503) away from the horizontal bar (502). A rotating rod (505) is fixedly installed at the output end of the motor (504). Multiple dispersing rods (506) are distributed in a ring on the outer wall surface of the rotating rod (505).

6. A pulverized coal drying device according to claim 5, characterized in that: A sealing sleeve (508) is fixedly installed on the top surface of the drying box (1), and a long rod (507) is fixedly installed on the end surface of the horizontal bar (502) away from the short rod (503). The long rod (507) and the sealing sleeve (508) are slidably connected.

7. A pulverized coal drying device according to claim 6, characterized in that: The top surface of the drying box (1) is provided with a groove (509), and a movable plate (510) is slidably connected inside the groove (509). A plug rod (511) is fixedly installed on the surface of the movable plate (510), and multiple plug holes (512) are evenly provided on the outer wall surface of the long rod (507).

8. A pulverized coal drying device according to claim 7, characterized in that: A rectangular plate (513) is fixedly installed on the top surface of the drying box (1), and a spring (514) is fixedly installed between the rectangular plate (513) and the movable plate (510).

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