Gypsum powder drying machine

Abstract

The invention provides a gypsum powder dryer, and belongs to the technical field of drying devices, the gypsum powder dryer comprises a support and a drying roller, the drying roller is transversely mounted on the support, a powder inlet and outlet is formed in the side wall of one end of the drying roller, a driving part for driving the drying roller to rotate is mounted on the support, and a curved plate and a turning plate are arranged on the inner wall of the drying roller; the curved plate is used for driving powder to move, the material turning plate is used for driving the powder to fall down from the top wall of the drying roller, an inner barrel is rotationally connected into the drying roller, a rotating shaft is arranged on the inner barrel, the drying roller, the inner barrel and the rotating shaft are coaxially arranged, auger blades for driving the powder to move are installed on the rotating shaft, penetrating holes are formed in the inner barrel, and a smashing assembly is installed on the rotating shaft; according to the powder drying device, powder can be driven to roll and raise through the curved plate and the material turning plate, powder accumulation is prevented, the powder can have fluidity through the drying roller, the inner barrel and the auger blade, and the working efficiency of powder drying is improved.

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, as a product of fine processing of gypsum, is a fine white or colorless powder with the characteristics of light weight, high strength and good hygroscopicity. It plays an indispensable role in many fields. Gypsum powder dryer is a kind of equipment specially used for drying gypsum powder. It can heat the gypsum powder to evaporate the water in the gypsum powder, so as to achieve the purpose of drying.

[0003] Referring to the Chinese patent document with the announcement number CN219531488U and the name of a high-efficiency powder dryer, it includes a drying cylinder, a driving member, a stirring plate and a crushing group. The driving member is fixedly connected to the outer wall of the drying cylinder, the rotating shaft of the driving member is rotatably connected to the drying cylinder, and a plurality of stirring plates are arranged in an array on the rotating shaft, and the stirring plates are used to drive the powder to move. A crushing group is installed inside the drying cylinder, and the crushing group is used to crush the agglomerated powder. When in use, the driving member drives the rotating shaft and the stirring plate to rotate synchronously, the stirring plate drives the powder to be lifted, and the crushing group crushes the agglomerated powder into small-particle powder, and the small-particle powder is easier to be dried.

[0004] Referring to the above technical scheme, lump powders of different sizes enter the drying drum together with unagglomerated powders. The stirring plate drives the powders to be lifted up during continuous rotation. As the stirring plate rotates continuously, part 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 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, thus affecting the overall drying efficiency of the powders. Summary of the invention

[0005] In view of this, the present application provides a gypsum powder drying machine, which is mainly used to solve the problem that powder accumulation is 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 at 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 arranged 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 rotatably connected inside the drying drum, and a rotating shaft is arranged 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 scheme, the driving part can drive the drying drum to rotate around its own axis, and drive 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 to the other end of the drying drum. The turning 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 to the inside 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 directly flow from the perforation to the inside of the drying drum again, so that the powder has fluidity during the drying process to prevent powder accumulation.

[0008] Optionally, a limit support rod passing through the powder inlet and outlet is fixedly mounted on the bracket, one end of the limit 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 rotatably connected, the inner drum is limited to prevent the inner drum from rotating, and the drying drum can be rotated 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, and the breaker hammer can lift the block powder along the inner wall of the inner cylinder. After the block powder loses its balance due to gravity and falls, some granular powder is broken from large particles into small particles.

[0012] Optionally, the crushing assembly also includes a first crushing frame group and a second crushing frame group arranged on the rotating shaft, the first crushing frame group and the second crushing frame group are each provided with two, a knocking column is installed on the first crushing frame group, and a pressure roller is connected to the second crushing frame group through 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 pressure roller contacts the inner wall of the inner cylinder to 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 humid 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 inlet and a discharge port formed by a plate are fixedly mounted on the bracket, and the feed inlet 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, the present application includes at least one of the following beneficial technical effects: 1. The inner cylinder can make the powder flow between the drying drum and the inner cylinder for many 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, which can speed up the drying speed of the powder.

[0023] 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.

[0024] 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

[0025] Figure 1 A structural schematic diagram of a gypsum powder drying machine for this application; Figure 2 This is a schematic diagram of the structure of the drying drum and exhaust fan for this application; Figure 3 This is an internal cross-sectional view of the drying drum of the present application; Figure 4 This is a schematic diagram of the structure of the inner tube of this application; Figure 5This is a schematic diagram of the structure of the flow assembly of this application; Figure 6 This is a schematic diagram of the structure of the crushing assembly of this application; Figure 7 This is a schematic diagram of the structure of the curved panel and the flip plate of this application.

[0026] Explanation of the reference numerals: 1. bracket; 11. exhaust fan; 12. feed port; 13. discharge port; 2. drying drum; 3. flow component; 31. curved plate; 32. flipping plate; 33. inner cylinder; 34. rotating shaft; 35. auger blade; 36. perforation; 37. limit support rod; 38. first motor; 4. crushing component; 41. breaker; 42. first crushing frame group; 43. second crushing frame group; 44. knocking column; 45. pressure roller; 5. driving member; 51. second motor; 52. driven gear. DETAILED DESCRIPTION

[0027] 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 , the technical scheme of the embodiment of the present application is clearly and completely described. Obviously, the described embodiment is a part of the embodiment of the present application, not all of the embodiments. Based on the described embodiment of the present application, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of this application.

[0028] Reference Figure 1 , Figure 2 and Figure 5 The present embodiment provides a gypsum powder drying machine, comprising a support 1, a drying drum 2, a flow component 3, a crushing component 4 and a driving member 5. The support 1 is rotatably connected with the drying drum 2, and the drying drum 2 is driven by the driving member 5 installed on the support 1. The drying drum 2 is installed horizontally and rotates around its own central axis. A powder inlet and outlet are installed on the side wall at one end of the drying drum 2, and the powder inlet and outlet include a feed port 12 and a discharge port 13. The drying drum 2 is installed with a flow component 3 for moving the powder, and the flow component 3 is installed with a crushing component 4 for crushing and kneading the granular powder.

[0029] Reference Figure 1 , Figure 2 and Figure 3 The bracket 1 is provided 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 a plate installed on the bracket 1. The feed port 12 is located directly above the discharge port 13. The feed port 12 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. The exhaust fan 11 is used to extract the humid air inside the drying drum 2.

[0030] Reference Figure 7, the flow component 3 includes a curved plate 31 and a flip plate 32. The curved plate 31 and the flip plate 32 are both set to three and are installed in a circular array 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 plane 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 can make the powder stay 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 from the flip plate 32. A curved plate 31 located on the inner wall of the drying drum 2 is fixedly installed between the two flip plates 32, and the curved plate 31 is distributed in a smooth arc-shaped surface; when the drying drum 2 rotates slowly clockwise, the curved plate 31 drives the powder to slowly roll and move away from the powder inlet and outlet. When the drying drum 2 rotates slowly counterclockwise, the curved plate 31 drives the powder to approach the powder inlet and outlet.

[0031] When in use, first start the driving member 5 to drive the drying drum 2 to rotate, and add the wet 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 rotating to the bottom, and slowly rolls under the drive of the curved plate 31, and the other part of the powder contacts the flipping plate 32 rotating 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, and the powder loses support and falls from the flipping plate 32, and the powder is lifted up.

[0032] Reference Figure 3 , Figure 4 and Figure 5 The flow assembly 3 further includes an inner cylinder 33, a rotating shaft 34, an auger blade 35, a perforation 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 passing through the powder inlet and outlet is fixedly installed on the bracket 1. 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 provided on the top of the inner cylinder 33 for allowing the powder to enter the inner cylinder 33. The inner cylinder 33 is provided with a rotating shaft 34. The drying drum 2, the inner cylinder 33 and the rotating shaft 34 are coaxially arranged. The bracket 1 is provided with a first motor 38 for driving the rotating shaft 34 to rotate. The rotating shaft 34 is provided with an auger blade 35. The inner cylinder 33 is provided with a perforation 36. The perforation 36 is used to allow the powder to fall from the inner cylinder 33 to the drying drum 2.

[0033] 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 flying, the middle position between the drying drum 2 and the bracket 1 is heated to dry the powder inside the drying drum 2.

[0034] Reference Figure 6 The crushing assembly 4 includes a crushing hammer 41, a first crushing frame group 42, a second crushing frame group 43, a knocking column 44 and a pressure roller 45. The crushing hammer 41 is fixedly mounted on the rotating shaft 34. The crushing hammer 41 is arranged in multiple and linear array distribution. The crushing hammer 41 can crush large particles of powder into small particles. The first crushing frame group 42 and the second crushing frame group 43 are fixedly mounted on the end of the rotating shaft 34 close to the powder inlet and outlet. The first crushing frame group 42 and the second crushing frame group 43 are both provided with two crushing frames and the two crushing frames are distributed at 180 degrees. The first crushing frame group 42 is equipped with a knocking column 44, which is used to crush small particles of powder into smaller particles of powder. The second crushing frame group 43 is equipped with a pressure roller 45, which can knead small particles of powder into powder.

[0035] When in use, the rotating shaft 34 rotates while synchronously driving the breaker 41, the first crushing frame group 42 and the second crushing frame group 43 to rotate. During the process of the auger blade 35 driving the granular powder to move, the breaker 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 externally and crushed into small particles. 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, and the granular powder is crushed and kneaded into powder, and the powder flows out from the perforation 36.

[0036] 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, and 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 rotates, so that the drying drum 2 rotates synchronously.

[0037] The implementation principle of a gypsum powder drying machine in the embodiment of the present application is: When using the device, first start the driving member 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 blades 35, the breaker hammer 41, the first breaker frame group 42 and the second breaker frame group 43 rotate synchronously.

[0038] The wet granular powder and powdered powder are then added into the drying drum 2 from the feed inlet 12, and the curved plate 31 drives the powder to tumble and move to prevent the powder from falling from the powder inlet and outlet. When the turning plate 32 drives part of the powder to rotate to the upper part of the inner wall of the drying drum 2, the powder falls on the inner cylinder 33, and the auger blade 35 drives the powder to move toward one end of the inner cylinder 33. The crushing 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, and the granular powder is further crushed. The second crushing frame group 43 drives the pressing roller 45 to crush the granular powder, and the granular powder is crushed and kneaded into powdered powder. The powdered powder flows out from the perforation 36, and the granular powder that is not completely crushed continues to be crushed and kneaded by the knocking column 44 and the pressing roller 45.

[0039] In addition, it should be noted that in the description of this application, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0040] 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 inside the drying drum (2), and 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, and 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).

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 the 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 pulverizing assembly (4) further comprises a first crushing frame group (42) and a second crushing frame group (43) arranged on the rotating shaft (34); the first crushing frame group (42) and the second crushing frame group (43) are each provided in pairs; a knocking column (44) is mounted on the first crushing frame group (42); and a pressure roller (45) is rotatably connected to the second crushing frame group (43) via a shaft.

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: The support (1) is fixedly mounted with a feed inlet (12) and a discharge outlet (13) formed by plates.

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

8. A 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 meshes with the driven gear (52).

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