A gypsum powder drying machine

Abstract

The present application provides a gypsum powder dryer, which belongs to the technical field of drying devices, including a bracket and a drying drum, the drying drum is horizontally installed on the bracket, a powder inlet and outlet is opened on the side wall of one end of the drying drum, a driving part for driving the drying drum to rotate is installed on the bracket, a curved plate and a flipping plate are provided on the inner wall of the drying drum, the curved plate is used to drive the powder to move, and the flipping plate is used to drive the powder to fall from the top wall of the drying drum, an inner cylinder is connected to the drying drum for rotation, a rotating shaft is provided on the inner cylinder, the drying drum, the inner cylinder and the rotating shaft are coaxially arranged, an auger blade for driving the powder to move is installed on the rotating shaft, a perforation is opened on the inner cylinder, and a crushing assembly is installed on the rotating shaft; the present application can drive the powder to roll and lift up through the curved plate and the flipping plate to prevent powder accumulation, and can make the powder fluid through the drying drum, the inner cylinder and the auger blade, thereby accelerating the working efficiency of the powder drying.

Description

Technical Field

[0001] The present application relates to the technical field of drying devices, and in particular to a gypsum powder drying machine. Background Art

[0002] Gypsum powder, a finely processed product of gypsum, appears as a delicate white or colorless powder. It boasts lightweight, high strength, and excellent hygroscopicity. It plays an indispensable role in a wide range of fields. A gypsum powder dryer is a device specifically designed for drying gypsum powder. It heats the powder, evaporating the moisture within.

[0003] Referring to the Chinese patent document with publication number CN219531488U, entitled "A High-Efficiency Powder Dryer," the device comprises a drying drum, a drive member, a stirring plate, and a crushing group. The drive member is fixedly connected to the outer wall of the drying drum, and its rotating shaft is rotatably connected to the drying drum. A plurality of stirring plates are arranged in an array on the rotating shaft, which is used to move the powder. A crushing group is installed inside the drying drum to crush agglomerated powder. During use, the drive member drives the rotating shaft and the stirring plate to rotate synchronously, the stirring plate causes the powder to be lifted up, and the crushing group crushes the agglomerated powder into small particles, which are easier to dry.

[0004] Referring to the above technical solution, lump powders of different sizes and unagglomerated powders enter the drying drum together. The powders are lifted up during the continuous rotation of the stirring plate. As the stirring plate rotates continuously, some of the powders are easily accumulated at the end of the drying drum. The stirring plate is difficult to contact the powders at the edge, and the accumulated powders are difficult to fully contact the heat source. Some of the unaccumulated powders can be dried in a short time, while the powders accumulated at the end of the drying drum require a longer drying time to complete drying, which will affect the overall drying efficiency of the powders. Summary of the Invention

[0005] In view of this, the present application provides a gypsum powder dryer, which is mainly used to solve the problem of powder accumulation being difficult to dry.

[0006] In order to solve the above technical problems, the present application provides a gypsum powder dryer, including a bracket and a drying drum. The drying drum is horizontally installed on the bracket, and a powder inlet and outlet are opened on the side wall of one end of the drying drum. A driving member for driving the drying drum to rotate is installed on the bracket, and a curved plate and a flipping plate are provided on the inner wall of the drying drum. The curved plate is used to drive the powder to move, and the flipping plate is used to drive the powder to fall from the top wall of the drying drum. An inner cylinder is connected to the drying drum for rotation, and a rotating shaft is provided on the inner cylinder. The drying drum, the inner cylinder and the rotating shaft are coaxially arranged, and an auger blade for driving the powder to move is installed on the rotating shaft. The inner cylinder is provided with a through hole, and a crushing assembly is installed on the rotating shaft.

[0007] By adopting the above technical solution, the driving part can drive the drying drum to rotate around its own axis, driving the powder to tumble in the drying drum. When the drying drum rotates clockwise, the curved plate can drive the powder away from the powder inlet and outlet and slowly move toward the other end of the drying drum. The flipping plate can drive the powder to rotate synchronously with the drying drum. When the powder rotates to the top of the inner cylinder, the powder falls from the top opening of the inner cylinder into the interior of the inner cylinder. The auger blades can drive the powder in the inner cylinder to move while rotating. The crushing component can crush the block powder, and the crushed powder can flow directly from the perforation to the inside of the drying drum again, so that the powder has fluidity during the drying process and prevents powder accumulation.

[0008] Optionally, a limiting support rod passing through the powder inlet and outlet is fixedly mounted on the bracket, one end of the limiting support rod is fixedly connected to the bracket, and the other end is fixedly connected to the inner cylinder.

[0009] By adopting the above technical solution, the limiting support rod can limit the inner drum while supporting the inner drum. Since the inner drum and the drying drum are connected in rotation, the inner drum is limited to prevent the inner drum from rotating, and the rotation of the drying drum can be realized at the same time.

[0010] Optionally, the crushing assembly includes a plurality of crushing hammers fixedly mounted on the rotating shaft, and the crushing hammers are used to crush large-particle powder into small-particle powder.

[0011] By adopting the above technical solution, the breaker hammer rotates synchronously with the rotating shaft. The breaker hammer can lift the block powder along the inner wall of the inner cylinder. After the block powder loses balance due to gravity and falls, some granular powder is broken from large particles into small particles.

[0012] Optionally, the crushing assembly further includes a first crushing frame group and a second crushing frame group arranged on the rotating shaft, and the first crushing frame group and the second crushing frame group are both provided in two. The first crushing frame group is equipped with a knocking column, and the second crushing frame group is connected to a pressure roller via an axial rotation.

[0013] By adopting the above technical solution, the first crushing frame group and the second crushing frame group are both set to two, which can speed up the crushing and kneading of block powder. At the moment when the knocking column contacts the granular powder, the granular powder can be knocked and broken into smaller particles under the action of the impact force. The contact between the pressure roller and the inner wall of the inner cylinder can knead the small particles of powder.

[0014] Optionally, an exhaust fan corresponding to the powder inlet and outlet is provided on the bracket, and the exhaust fan is used to extract the moist air inside the drying drum.

[0015] By adopting the above technical solution, the indirect use of the exhaust fan can extract the moist air inside the drying drum.

[0016] Optionally, a feed port and a discharge port formed by plates are fixedly mounted on the bracket, and the feed port is located directly above the discharge port.

[0017] By adopting the above technical solution, the powder enters from the feed port, and when the drying drum rotates clockwise, the curved plate can drive the powder to slowly move away from the feed port to prevent the powder from falling; when the drying drum rotates counterclockwise, the curved plate can drive the powder to slowly approach the discharge port, causing the powder to fall from the discharge port.

[0018] Optionally, a first motor for driving the rotating shaft to rotate is installed on the bracket.

[0019] By adopting the above technical solution, the driving source of the first motor drives the rotating shaft to rotate, and at the same time drives the auger blades and the crushing assembly to rotate.

[0020] Optionally, the driving member includes a second motor fixedly mounted on the second bracket, a driving gear is mounted on the output shaft of the second motor, a driven gear is fixedly mounted on the drying drum, and the driving gear is meshed with the driven gear.

[0021] By adopting the above technical solution, the output shaft of the second motor drives the driving gear to rotate, and the driving gear drives the driven gear to rotate, thereby causing the drying drum to rotate synchronously.

[0022] In summary, compared with the prior art, this application has at least one of the following beneficial technical effects:

[0023] 1. The inner cylinder can make the powder flow between the drying drum and the inner cylinder multiple times, which can promote the fluidity of the powder during the drying process, increase the heating area of ​​the powder and make it heated evenly, thereby accelerating the drying speed of the powder.

[0024] 2. Through the crushing component, large particles of powder can be crushed and kneaded into small particles of powder, which is convenient for subsequent drying of the powder.

[0025] 3. Through the cleverly designed curved plate, when the drum rotates clockwise, the powder can be kept away from the feed port and can drive the powder to roll. When the drum rotates counterclockwise, the curved plate can drive the powder to gradually approach the discharge port. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a structural diagram of a gypsum powder drying machine for this application;

[0027] Figure 2 This is a schematic diagram of the structure of the drying drum and exhaust fan for this application;

[0028] Figure 3 This is a cross-sectional view of the interior of the drying drum for this application;

[0029] Figure 4 This is a schematic diagram of the structure of the inner tube of this application;

[0030] Figure 5 This is a schematic diagram of the structure of the flow components of this application;

[0031] Figure 6 This is a schematic diagram of the structure of the crushing component of this application;

[0032] Figure 7 This is a structural diagram of the curved panel and flip plate of this application.

[0033] Explanation of the accompanying reference numerals: 1. Bracket; 11. Exhaust fan; 12. Feed port; 13. Discharge port; 2. Drying drum; 3. Flow assembly; 31. Curved plate; 32. Turning plate; 33. Inner cylinder; 34. Rotating shaft; 35. Auger blade; 36. Perforation; 37. Limiting support rod; 38. First motor; 4. Crushing assembly; 41. Breaking hammer; 42. First crushing frame group; 43. Second crushing frame group; 44. Knocking column; 45. Pressing roller; 5. Driving member; 51. Second motor; 52. Driven gear. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the following will be combined with the embodiments of the present application Figure 1-Figure 7 , clearly and completely describes the technical solutions of the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of them. Based on the described embodiments of this application, all other embodiments obtained by ordinary technicians in this field fall within the scope of protection of this application.

[0035] Reference Figure 1 、 Figure 2 and Figure 5 This embodiment provides a gypsum powder dryer, comprising a support 1, a drying drum 2, a flow assembly 3, a crushing assembly 4, and a drive member 5. The drying drum 2 is rotatably connected to the support 1 and driven by the drive member 5 mounted on the support 1. The drying drum 2 is mounted horizontally and rotates about its central axis. A powder inlet and outlet are mounted on one sidewall of the drying drum 2, comprising a feed port 12 and a discharge port 13. The flow assembly 3 is mounted within the drying drum 2 for moving the powder, and the crushing assembly 4 is mounted on the flow assembly 3 for crushing and kneading the granular powder.

[0036] Reference Figure 1 、 Figure 2 and Figure 3The bracket 1 is equipped with an exhaust fan 11, a feed port 12, and a discharge port 13. The feed port 12 and the discharge port 13 are both composed of plates mounted on the bracket 1. The feed port 12 is located directly above the discharge port 13 and extends to the powder inlet and outlet of the drying drum 2. The exhaust fan 11 is located on one side of the powder inlet and outlet and is used to extract the moist air inside the drying drum 2.

[0037] Reference Figure 7 The flow assembly 3 includes a curved plate 31 and a flip plate 32. Each of the curved plates 31 and flip plates 32 is provided in a ring array and is mounted on the inner wall of the drying drum 2. The flip plate 32 is composed of a vertical plate and a folding plate. The vertical plate is fixedly connected to the inner wall of the drying drum 2. The folding plate is fixedly connected to the vertical plate. One side of the vertical plate and the folding plate is fixedly connected to the flat inner wall of the drying drum 2. When the drying drum 2 rotates clockwise, the space formed by the angle between the vertical plate and the folding plate allows the powder to remain on the flip plate 32. When the flip plate 32 rotates to the upper part of the inner wall of the drying drum 2, the powder loses support and falls off the flip plate 32. A curved plate 31 is fixedly mounted on the inner wall of the drying drum 2 between the two flip plates 32. The curved plates 31 are arranged in a smooth arc-shaped surface. When the drying drum 2 rotates slowly clockwise, the curved plate 31 causes the powder to slowly roll away from the powder inlet and outlet. When the drying drum 2 rotates slowly counterclockwise, the curved plate 31 causes the powder to move closer to the powder inlet and outlet.

[0038] When in use, first start the driving part 5 to drive the drying drum 2 to rotate, and add the moist block powder and powder powder into the drying drum 2 from the feed port 12. A part of the powder contacts the curved plate 31 that rotates to the bottom and slowly rolls under the drive of the curved plate 31. The other part of the powder contacts the flipping plate 32 that rotates to the bottom, and the powder rotates synchronously with the flipping plate 32 until the flipping plate 32 rotates to the upper part of the inner wall of the drying drum 2. The powder loses support and falls from the flipping plate 32, and the powder is lifted up.

[0039] Reference Figure 3 、 Figure 4 and Figure 5The flow assembly 3 further includes an inner cylinder 33, a rotating shaft 34, auger blades 35, a through-hole 36, a limit support rod 37, and a first motor 38. The inner cylinder 33 is rotatably connected to the drying drum 2. A limit support rod 37 is fixedly mounted on the bracket 1 and passes through the powder inlet and outlet. The limit support rod 37 is used to support and limit the inner cylinder 33. When the drying drum 2 rotates, the inner cylinder 33 is prevented from rotating synchronously. A U-shaped arc opening is formed at the top of the inner cylinder 33 for allowing powder to enter the inner cylinder 33. The rotating shaft 34 is mounted on the inner cylinder 33. The drying drum 2, the inner cylinder 33, and the rotating shaft 34 are coaxially arranged. A first motor 38 is mounted on the bracket 1 for driving the rotating shaft 34 to rotate. The rotating shaft 34 is mounted on the auger blades 35. The inner cylinder 33 is provided with a through-hole 36 for allowing powder to fall from the inner cylinder 33 to the drying drum 2.

[0040] When in use, the first motor 38 is started, and the output shaft of the first motor 38 drives the rotating shaft 34 to rotate, and then the auger blades 35 on the rotating shaft 34 rotate, and the powder on the flip plate falls onto the inner cylinder 33, and the auger blades 35 drive the granular powder to approach the crushing component 4, and the powder directly falls onto the inner wall of the drying drum 2 through the perforation 36. When the powder is floating, the middle position between the drying drum 2 and the bracket 1 is heated to dry the powder inside the drying drum 2.

[0041] Reference Figure 6 The crushing assembly 4 includes a breaker hammer 41, a first breaker frame group 42, a second breaker frame group 43, a knock column 44 and a pressure roller 45. The breaker hammer 41 is fixedly mounted on the rotating shaft 34. The breaker hammer 41 is arranged in a plurality and distributed in a linear array. The breaker hammer 41 can crush large particles of powder into small particles. The first breaker frame group 42 and the second breaker frame group 43 are fixedly mounted on the end of the rotating shaft 34 near the powder inlet and outlet. The first breaker frame group 42 and the second breaker frame group 43 are each provided with two breaker frames and the two breaker frames are distributed 180 degrees. The first breaker frame group 42 is equipped with a knock column 44, which is used to crush small particles of powder into even smaller particles. The second breaker frame group 43 is equipped with a pressure roller 45, which can knead the small particles of powder into powder.

[0042] During use, the rotating shaft 34 rotates while synchronously driving the breaker hammer 41, the first crushing frame group 42 and the second crushing frame group 43 to rotate. In the process of the auger blade 35 driving the granular powder to move, the breaker hammer 41 contacts the granular powder and drives the granular powder to move along the inner wall of the inner cylinder 33, so that the granular powder is squeezed and crushed into small particles by the outside. When the granular powder moves to the first crushing frame group 42 and the second crushing frame group 43, the first crushing frame group 42 drives the knocking column 44 to collide with the granular powder while rotating, and the granular powder is further crushed. The second crushing frame group 43 drives the pressing roller 45 to crush the granular powder while rotating, crushing the granular powder into powder, and the powder flows out from the perforation 36.

[0043] Reference Figure 1 The driving member 5 includes a second motor 51, a driving gear, and a driven gear 52. The second motor 51 is fixedly mounted on the bracket 1. The driving gear is fixedly mounted on the output shaft of the second motor 51. The driven gear 52 is fixedly mounted on the drying drum 2. When the second motor 51 drives the driving gear to rotate, the driven gear 52 meshing with the driving gear also rotates, causing the drying drum 2 to rotate synchronously.

[0044] The implementation principle of a gypsum powder drying machine in the embodiment of the present application is as follows:

[0045] When using the device, first start the driving part 5 to drive the drying drum 2 to rotate slowly clockwise, the curved plate 31 and the turning plate 32 rotate synchronously with the drying drum 2, start the first motor 38 to drive the rotating shaft 34 to rotate, and then the auger blade 35, the breaker hammer 41, the first breaker frame group 42 and the second breaker frame group 43 rotate synchronously.

[0046] The powdered material is then fed into the drying drum 2 through the feed port 12 , and the curved plate 31 drives the powdered material to tumble and move, preventing the powdered material from falling from the powder inlet and outlet. When the turning plate 32 drives part of the powdered material to rotate to the upper portion of the inner wall of the drying drum 2 , the powdered material falls onto the inner drum 33 , and the auger blades 35 drive the powdered material to move toward one end of the inner drum 33 . The crushing hammer 41 contacts the granular powdered material and drives the granular powdered material to move along the inner wall of the inner drum 33 , so that the granular powdered material is squeezed and crushed into small particles by the external pressure. When the granular powdered material moves to the first crushing frame group 42 and the second crushing frame group 43 , the first crushing frame group 42 drives the knocking column 44 to collide with the granular powdered material, further crushing the granular powdered material, and the second crushing frame group 43 drives the pressing roller 45 to crush the granular powdered material, crushing and kneading the granular powdered material into powdered material, and the powdered material flows out from the perforation 36 , and the granular powdered material that is not completely crushed continues to be crushed and kneaded by the knocking column 44 and the pressing roller 45 .

[0047] Furthermore, it should be noted that, in the description of this application, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0048] The above is a preferred embodiment of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles described in the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A gypsum powder drying machine, comprising a support (1) and a drying drum (2), wherein the drying drum (2) is transversely mounted on the support (1), a powder inlet and outlet is provided on a side wall at one end of the drying drum (2), and a driving member (5) for driving the drying drum (2) to rotate is mounted on the support (1), characterized in that: The inner wall of the drying drum (2) is provided with a curved plate (31) and a turning plate (32), the curved plate (31) is used to drive the powder to move, and the turning plate (32) is used to drive the powder to fall from the top wall of the drying drum (2), an inner cylinder (33) is rotatably connected in the drying drum (2), a rotating shaft (34) is provided on the inner cylinder (33), the drying drum (2), the inner cylinder (33) and the rotating shaft (34) are coaxially arranged, an auger blade (35) for driving the powder to move is installed on the rotating shaft (34), a perforation (36) is opened on the inner cylinder (33), and a crushing assembly (4) is installed on the rotating shaft (34); A U-shaped arc opening is provided at the top of the inner cylinder (33) for allowing powder to enter the inner cylinder (33); The turning plate (32) is composed of a vertical plate and a folding plate, the vertical plate is fixedly connected to the inner wall of the drying drum (2), the folding plate is fixedly connected to the vertical plate, and one side of the vertical plate and the folding plate is fixedly connected to the plane inner wall of the drying drum (2); The curved plate (31) is provided with a smooth arc-shaped curved surface. When in use, the drying drum (2) rotates so that the curved plate (31) drives the powder to roll in a direction away from the perforation (36), and the auger blade (35) can drive the powder to move in a direction close to the perforation (36) when rotating, thereby realizing the movement of the powder in two directions in the drying drum (2).

2. A gypsum powder drying machine according to claim 1, characterized in that: A limiting support rod (37) passing through the powder inlet and outlet is fixedly mounted on the bracket (1); one end of the limiting support rod (37) is fixedly connected to the bracket (1), and the other end is fixedly connected to the inner cylinder (33).

3. A gypsum powder drying machine according to claim 1, characterized in that: The crushing assembly (4) comprises a plurality of crushing hammers (41) fixedly mounted on a rotating shaft (34), wherein the crushing hammers (41) are used to crush large-particle powder into small-particle powder.

4. A gypsum powder drying machine according to claim 3, characterized in that: The crushing assembly (4) further comprises a first crushing frame group (42) and a second crushing frame group (43) arranged on the rotating shaft (34), wherein the first crushing frame group (42) and the second crushing frame group (43) are both provided in pairs, a knocking column (44) is installed on the first crushing frame group (42), and a pressure roller (45) is rotatably connected to the second crushing frame group (43) via an axis.

5. A gypsum powder drying machine according to claim 1, characterized in that: The bracket (1) is provided with an exhaust fan (11) corresponding to the powder inlet and outlet, and the exhaust fan (11) is used to extract the moist air inside the drying drum (2).

6. A gypsum powder drying machine according to claim 1, characterized in that: A feed port (12) and a discharge port (13) formed by plates are fixedly mounted on the bracket (1).

7. A gypsum powder drying machine according to claim 1, characterized in that: A first motor (38) for driving the rotating shaft (34) to rotate is mounted on the bracket (1).

8. The gypsum powder drying machine according to claim 1, characterized in that: The driving member (5) comprises a second motor (51) fixedly mounted on the second bracket (1); a driving gear is mounted on the output shaft of the second motor (51); a driven gear (52) is fixedly mounted on the drying drum (2); and the driving gear and the driven gear (52) are meshed.

Images