Gypsum powder secondary drying device

Abstract

The utility model discloses a secondary drying device for gypsum powder, which belongs to the field of drying devices and comprises a drying box, a fixing frame is arranged on one side of the drying box, the fixing frame is inserted into the drying box and movably connected with the drying box, and an auxiliary structure is arranged on the fixing frame. A first cavity and a second cavity are formed in the drying box, two conveying structures are arranged in the drying box and located below the fixing frame, the two conveying structures are of a multi-layer conveying belt structure, and vibration perpendicular to the plane of a conveying belt is generated through work of the arranged vibration structures; the gypsum powder continuously jumps in the conveying process, the contact area of the gypsum powder and hot air is increased, the gypsum powder is prevented from being accumulated and agglomerated, the vibration frequency and amplitude can be adjusted according to the characteristics of the gypsum powder and the drying requirement, smooth conveying of materials can be guaranteed, and the drying efficiency can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the drying device field, more specifically, relate to a plaster powder secondary drying device. BACKGROUND

[0002] Gypsum powder as a kind of important raw material widely used in building, chemical industry, medicine and multiple fields, its quality plays a key role in the performance of final product.In the production process of gypsum powder, drying is an essential link, the purpose is to remove moisture, ensure the quality and stability of gypsum powder.Primary drying can preliminarily reduce the moisture content of gypsum powder, but due to the complexity of production process and strict standard requirements for the moisture content of gypsum powder, secondary drying is often needed to further accurately control the moisture content.

[0003] Chinese patent authorized announcement number:202321126156.5 patent number provides a kind of drying device for nano gypsum powder production, the inside of the conveying frame is provided with first conveyor belt, second conveyor belt, third conveyor belt, nano gypsum powder is transported by conveyor belt, and the height difference between conveyor belt is made to realize twice tumbling in the process of drying, so that it is dried more thoroughly.

[0004] But the above-mentioned patent in improvement material is prone to accumulation on conveying belt, the material is accumulated thicker in the middle part of conveying belt, and thinner in the edge part, meanwhile, material is prone to adhere to first conveyor belt, so as to affect its conveying, therefore, aiming at the above-mentioned problem, a gypsum powder secondary drying device is provided. UTILITY MODEL CONTENT

[0005] 1. Technical problem to be solved

[0006] In view of the problems existing in the prior art, the purpose of the utility model is to provide a gypsum powder secondary drying device, by setting two transmission structures, using multi-layer conveyor belt structure, and by setting vibration structure, vertical to the plane of conveyor belt, vibration is generated, so that gypsum powder jumps constantly in the conveying process, increase the contact area of gypsum powder and hot air, prevent gypsum powder from accumulating and caking, vibration frequency and amplitude can be adjusted according to the characteristics of gypsum powder and drying requirement, which can ensure smooth conveying of material and improve drying efficiency.

[0007] 2. Technical scheme

[0008] To solve the above problems, the utility model adopts the following technical scheme.

[0009] A gypsum powder secondary drying device, including a drying box, one side of the drying box is provided with a fixed frame, the fixed frame is inserted into the inside of the drying box and is movably connected with it, the fixed frame is provided with an auxiliary structure, a first cavity and a second cavity are opened on the drying box, two transmission structures are arranged inside the drying box and below the fixed frame, a plurality of vibration structures are arranged in the two transmission structures, the vibration structure includes a mounting plate, the mounting plate is fixedly connected with the drying box, two electromagnetic vibrators are inlaid on the top of the mounting plate, a vibration plate is arranged above the mounting plate, the output ends of the two electromagnetic vibrators are fixedly connected with the vibration plate, a first fixed pipe, a second fixed pipe and a third fixed pipe are fixedly installed inside the drying box.

[0010] Further, a plurality of air outlets are fixedly installed at the bottom of the first fixed pipe, the second fixed pipe and the third fixed pipe, the air outlets are respectively inserted into the interiors of the first fixed pipe, the second fixed pipe and the third fixed pipe and are communicated with them, the first fixed pipe and the second fixed pipe are inserted into the interior of the second cavity and are communicated with it, the third fixed pipe is inserted into the interior of the first cavity and is communicated with it, valves are arranged inside the drying box and on the first fixed pipe, the second fixed pipe and the third fixed pipe, two heating pipes are fixedly installed inside the first cavity and the second cavity, air inlet pipes are fixedly installed on one side of the first cavity and the second cavity outside the drying box, the air inlet pipes are respectively inserted into the interiors of the first cavity and the second cavity and are communicated with them, air suction pumps are arranged inside the drying box and on the two air inlet pipes, dustproof nets are fixedly installed inside the two air inlet pipes.

[0011] Further, the transmission structure is composed of a conveying belt, a conveying roller, a belt pulley, a synchronous belt and a driving motor, the vibration plate is movably connected with the conveying belt, side plates are fixedly installed inside the drying box and on the corresponding two sides of the transmission structure, and the side plates are slidably connected with the conveying belt.

[0012] Further, the auxiliary structure includes a servo motor, the servo motor is fixedly installed inside the fixed frame, a fixed rod is fixedly installed at the output end of the servo motor, helical blades are fixedly installed on the outer side of the fixed rod, the fixed rod is inserted into the interior of the drying box and is rotatably connected with it, a shell is movably connected with the outer side of the fixed frame, two vibration motors are inlaid at the bottom of the inner wall of the shell, and the output ends of the two vibration motors are fixedly connected with the fixed frame.

[0013] Further, the inside of the drying box and below the mounting plate is fixedly installed with a shell, the corresponding two sides of the shell and the top of the fixing plate are fixedly installed with a plurality of damping structures, the damping structure is composed of a shock absorber and a damping spring, the bottom of the shell is fixedly installed with two T-shaped auxiliary rods, and the two T-shaped auxiliary rods are inserted into the inside of the fixing plate and are movably connected with the fixing plate.

[0014] Further, the top of the fixed frame is slidably connected with a baffle, one side of the fixed frame is fixedly installed with a guide frame, one side of the drying box is inlaid with a controller, and the controller is electrically connected with the electromagnetic vibrator, the heating pipe, the servo motor, the vibration motor, the valve, the air suction pump and the driving motor.

[0015] 3. Beneficial effects

[0016] Compared with the prior art, the utility model has the advantages that:

[0017] (1) The scheme adopts a multi-layer conveying belt structure through the two transmission structures, and the vibration structure is arranged to generate vibration perpendicular to the conveying belt plane, so that the gypsum powder continuously jumps in the conveying process, the contact area of the gypsum powder and hot air is increased, the gypsum powder is prevented from accumulating and caking, the vibration frequency and amplitude can be adjusted according to the characteristics of the gypsum powder and drying requirements, the material can be smoothly conveyed, and the drying efficiency is improved.

[0018] (2) The scheme drives the fixed frame to generate high-frequency vibration through the auxiliary structure and the vibration motor, the vibration of the fixed frame is transmitted to the spiral blade through the gypsum powder, the gypsum powder continuously jumps up and down and transversely displaces in the process of advancing forward, and the gypsum powder is dried at two partition temperature adjustment temperatures, and the drying efficiency is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0020] Figure 2 It is a front cross-sectional structure schematic view of the utility model;

[0021] Figure 3 It is a three-dimensional structure schematic view of the utility model; Figure 2 It is an enlarged view of A in the utility model;

[0022] Figure 4 It is an enlarged view of B in the utility model; Figure 2

[0023] It is an enlarged view of B in the utility model; Figure 5

[0024] It is a partial structure schematic view of the utility model; Figure 6 It is a side cross-sectional structure schematic view of the utility model.

[0025] Explanation of reference numerals in the drawing: 1, drying box; 2, transmission structure; 3, fixed frame; 4, mounting plate; 5, electromagnetic vibrator; 6, vibrating plate; 7, first fixed pipe; 8, second fixed pipe; 9, third fixed pipe; 10, air outlet; 11, air inlet pipe; 12, first cavity; 13, second cavity; 14, heating pipe; 15, fixed rod; 16, helical blade; 17, servo motor; 18, guide frame; 19, fixed plate; 20, vibrating motor; 21, shock absorber; 22, shock absorbing spring; 23, side plate; 24, controller; 25, housing. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application. Embodiment:

[0027] Please refer to Figures 1-3 A gypsum powder secondary drying device, including drying box 1, one side of drying box 1 is provided with fixed frame 3, fixed frame 3 is inserted into the inside of drying box 1 and is movably connected with it, auxiliary structure is arranged on fixed frame 3, first cavity 12 and second cavity 13 are formed in drying box 1, two transmission structures 2 are arranged in the inside of drying box 1 and below fixed frame 3, a plurality of vibrating structures are arranged in the two transmission structures 2, vibrating structure includes mounting plate 4, mounting plate 4 is fixedly connected with drying box 1, two electromagnetic vibrators 5 are embedded in the top of mounting plate 4, vibrating plate 6 is arranged above mounting plate 4, the output end of two electromagnetic vibrators 5 is fixedly connected with vibrating plate 6, first fixed pipe 7, second fixed pipe 8 and third fixed pipe 9 are fixedly installed in the inside of drying box 1.

[0028] By setting two transmission structures 2 with multi-layer conveyor belt structure, the materials are sequentially transferred between different layers, the residence time of gypsum powder in the drying cavity is prolonged, and the running speed of each layer of conveyor belt can be individually adjusted as required, so that the conveying rhythm of gypsum powder can be flexibly controlled according to the characteristics of gypsum powder at different drying stages, and the drying effect is ensured, and further by setting electromagnetic vibrator 5 to act on vibrating plate 6, the gypsum powder is continuously jumping in the conveying process by the vibration of the conveyor belt, the contact area of the gypsum powder and hot air is increased, the gypsum powder is prevented from accumulating and caking, and the vibration frequency and amplitude can be adjusted according to the characteristics of the gypsum powder and the drying requirements, so that the material can be smoothly conveyed and the drying efficiency can be improved.

[0029] Meanwhile, through the auxiliary structure, the fixed rod 15 drives the spiral blade 16 to rotate through the servo motor 17, so that the gypsum powder can be stably pushed forward, and the vibration motor 20 is fixedly installed on the top of the shell 25, and the fixed frame 3 is driven to vibrate through the vibration motor 20, and the vibration of the fixed frame 3 is transmitted to the spiral blade 16 through the gypsum powder, so that the gypsum powder jumps up and down and transversely displaces in the process of pushing forward.

[0030] The bottom of the first fixed pipe 7, the second fixed pipe 8 and the third fixed pipe 9 is fixedly installed with a plurality of air outlets 10, the plurality of air outlets 10 are respectively inserted into the interiors of the first fixed pipe 7, the second fixed pipe 8 and the third fixed pipe 9 and communicate with them, the first fixed pipe 7 and the second fixed pipe 8 are inserted into the interior of the second cavity 13 and communicate with it, the third fixed pipe 9 is inserted into the interior of the first cavity 12 and communicates with it, the interior of the drying box 1 and the positions above the first fixed pipe 7, the second fixed pipe 8 and the third fixed pipe 9 are provided with valves, the interiors of the first cavity 12 and the second cavity 13 are fixedly installed with two heating pipes 14, the exterior of the drying box 1 and the positions on one side of the first cavity 12 and the second cavity 13 are fixedly installed with air inlet pipes 11, the two air inlet pipes 11 are respectively inserted into the interiors of the first cavity 12 and the second cavity 13 and communicate with them, the interior of the drying box 1 and the positions above the two air inlet pipes 11 are provided with air suction pumps, and the interiors of the two air inlet pipes 11 are fixedly installed with dustproof nets.

[0031] The gas heated by the first fixed pipe 7, the second fixed pipe 8 and the third fixed pipe 9 is transported through the air inlet pipe 11 into the interiors of the first cavity 12 and the second cavity 13, and the gas is transported through the heating pipe 14, so that the gypsum powder is dried through the air outlets 10, and the temperature output by the third fixed pipe 9, the first fixed pipe 7 and the second fixed pipe 8 can be respectively adjusted and controlled through the two heating pipes 14.

[0032] Please refer to Figures 4-6 The transmission structure 2 is composed of a conveying belt, a conveying roller, a belt pulley, a synchronous belt and a driving motor, the vibration plate 6 is movably connected with the conveying belt, the interior of the drying box 1 and the positions on the corresponding two sides of the transmission structure 2 are fixedly installed with side plates 23, and the side plates 23 are slidingly connected with the conveying belt.

[0033] The auxiliary structure includes a servo motor 17, the servo motor 17 is fixedly installed in the interior of the fixed frame 3, the output end of the servo motor 17 is fixedly installed with a fixed rod 15, the outer side of the fixed rod 15 is fixedly installed with a spiral blade 16, the fixed rod 15 is inserted into the interior of the drying box 1 and is rotatably connected with it, the outer side of the fixed frame 3 movably connects with a shell 25, the bottom of the inner wall of the shell 25 is inlaid with two vibration motors 20, and the output ends of the two vibration motors 20 are fixedly connected with the fixed frame 3.

[0034] The inside of the drying box 1 and below the shell 25 is fixedly installed with a fixed plate 19, the corresponding two sides of the shell 25 and the top of the fixed plate 19 are fixedly installed with a plurality of damping structures, the damping structures are composed of dampers 21 and damping springs 22, the bottom of the shell 25 is fixedly installed with two T-shaped auxiliary rods, and the two T-shaped auxiliary rods are inserted into the inside of the fixed plate 19 and movably connected therewith.

[0035] The top of the fixed frame 3 is slidably connected with a baffle, one side of the fixed frame 3 is fixedly installed with a guide frame 18, one side of the drying box 1 is inlaid with a controller 24, and the controller 24 is electrically connected with the electromagnetic vibrator 5, the heating pipe 14, the servo motor 17, the vibration motor 20, the valve, the air suction pump and the driving motor.

[0036] The dampers 21 and the damping springs 22 are evenly distributed between the top of the fixed plate 19 and the drying box 1 and the mounting plate 4, play a supporting and buffering role, and the T-shaped auxiliary rods are arranged to make the mounting plate 4 not separate from the fixed plate 19 when the mounting plate 4 is vibrated by the vibration motor 20, the controller 24 is arranged to control the equipment on the device, and the heat dissipation holes matched with the vibration motor 20 and the driving motor are arranged on the drying box 1.

[0037] Working principle: when the equipment is started, the spiral blade 16 arranged on the fixed rod 15 starts to rotate under the driving of the servo motor 17, the gypsum powder material enters from the feeding port arranged on the top of the fixed frame 3, and moves slowly forward along the axial direction of the servo motor 17 under the pushing of the spiral blade 16, at the same time, the vibration motor 20 starts to work, drives the fixed frame 3 to produce high-frequency vibration, and makes the vibration of the fixed frame 3 transmitted to the spiral blade 16 through the gypsum powder, so that the gypsum powder jumps up and down and transversely displaces in the process of advancing forward, and the initially heated gypsum powder falls onto the transmission structure 2 through the guide frame 18, and the running speed of the transmission structure 2 is adjusted, so that the gypsum powder has enough time to absorb heat on the upper conveying belt close to the guide frame 18, and the speed is appropriately increased on the lower conveying belt close to the discharge port, so as to avoid over-drying of the gypsum powder.

[0038] At the same time, the temperature of the heating pipe 14 in the first cavity 12 and the second cavity 13 is controlled respectively, so as to adjust the temperature of the hot air delivered through the air inlet pipe 11, and then divide the drying cavity into a preheating zone and a drying zone, in the preheating zone of the fixed frame 3, a lower temperature is used to preliminarily heat the material, so that the water evaporates slowly, and the influence of sudden temperature change on the crystal structure of the gypsum powder is avoided, and a high-temperature environment is provided on the transmission structure 2 in the drying zone to accelerate evaporation of water, so as to ensure the drying efficiency.

[0039] The conveying belts arranged on the two transmission structures 2 are driven by the driving motor to run at a set speed, and the gypsum powder is conveyed from the guide frame 18 to the discharge port formed on the bottom of one side of the drying box 1, at the same time, the vibration structure works to generate vibration perpendicular to the plane of the conveying belt, and the vibration is transmitted to the conveying belt, so that the gypsum powder on the surface of the conveying belt jumps up and down, due to the existence of the vibration, gaps are generated between the gypsum powder particles originally closely accumulated on the conveying belt, and the hot air can more smoothly penetrate the gypsum powder layer and fully contact the gypsum powder, meanwhile, the vibration also promotes the gypsum powder to generate a certain degree of transverse displacement on the conveying belt, so that the gypsum powder is prevented from forming a fixed accumulation mode on the conveying belt, and the contact area between the gypsum powder and the hot air is further increased.

[0040] The above merely describes a preferred specific embodiment of the present application; however, the protection scope of the present application is not limited to this. Any skilled person in the art, according to the technical scheme and the improved conception of the present application, should be covered in the protection scope of the present application, if the technical scheme and the improved conception of the present application are replaced or changed equivalently within the technical range disclosed by the present application.

Claims

1. A gypsum powder secondary drying device, comprising a drying box (1), characterized in that: The side of the drying box (1) is provided with a fixed frame (3), the fixed frame (3) is inserted into the inside of the drying box (1) and is movably connected with it, the fixed frame (3) is provided with an auxiliary structure, the drying box (1) is provided with a first cavity (12) and a second cavity (13), the inside of the drying box (1) and below the fixed frame (3) are provided with two transmission structures (2), a plurality of vibration structures are arranged in the two transmission structures (2), the vibration structure comprises a mounting plate (4), the mounting plate (4) is fixedly connected with the drying box (1), two electromagnetic vibrators (5) are embedded on the top of the mounting plate (4), a vibrating plate (6) is arranged above the mounting plate (4), the output ends of the two electromagnetic vibrators (5) are fixedly connected with the vibrating plate (6), and the first fixed pipe (7), the second fixed pipe (8) and the third fixed pipe (9) are fixedly installed in the inside of the drying box (1).

2. A gypsum powder secondary drying device according to claim 1, characterized in that: The first fixed pipe (7), the second fixed pipe (8) and the third fixed pipe (9) are fixedly installed with a plurality of air outlet heads (10) at the bottom, a plurality of air outlet heads (10) are respectively inserted into the inside of the first fixed pipe (7), the second fixed pipe (8) and the third fixed pipe (9) and are communicated with them, the first fixed pipe (7) and the second fixed pipe (8) are inserted into the inside of the second cavity (13) and are communicated with it, the third fixed pipe (9) is inserted into the inside of the first cavity (12) and is communicated with it, the inside of the drying box (1) and above the first fixed pipe (7), the second fixed pipe (8) and the third fixed pipe (9) are provided with valves, the inside of the first cavity (12) and the second cavity (13) is fixedly installed with two heating pipes (14), the outside of the drying box (1) and on one side of the first cavity (12) and the second cavity (13) are fixedly installed with air inlet pipes (11), two air inlet pipes (11) are respectively inserted into the inside of the first cavity (12) and the second cavity (13) and are communicated with them, air suction pumps are arranged on the inside of the drying box (1) and on the two air inlet pipes (11), and dustproof nets are fixedly installed in the two air inlet pipes (11).

3. A gypsum powder secondary drying device according to claim 1, characterized in that: The transmission structure (2) is composed of a conveyor belt, a conveyor roller, a belt pulley, a synchronous belt and a driving motor, the vibrating plate (6) is movably connected with the conveyor belt, and side plates (23) are fixedly installed on the corresponding two sides of the transmission structure (2) in the inside of the drying box (1).

4. The gypsum powder secondary drying device according to claim 1, characterized in that: The auxiliary structure includes a servo motor (17), the servo motor (17) is fixedly installed in the inside of the fixed frame (3), the output end of the servo motor (17) is fixedly installed with a fixed rod (15), the outer side of the fixed rod (15) is fixedly installed with a spiral blade (16), the fixed rod (15) is inserted into the inside of the drying box (1) and is rotationally connected with it, the outer side of the fixed frame (3) is movably connected with a shell (25), the bottom of the inner wall of the shell (25) is inlaid with two vibration motors (20), and the output ends of the two vibration motors (20) are fixedly connected with the fixed frame (3).

5. A gypsum powder secondary drying device according to claim 4, characterized in that: The inside of the drying box (1) and below the shell (25) are fixedly installed with a fixed plate (19), the corresponding two sides of the shell (25) and the top of the fixed plate (19) are fixedly installed with a plurality of damping structures, the damping structure includes a shock absorber (21) and a damping spring (22), the bottom of the shell (25) is fixedly installed with two T-shaped auxiliary rods, and the two T-shaped auxiliary rods are inserted into the inside of the fixed plate (19) and movably connected with it.

6. A gypsum powder secondary drying device according to claim 1, characterized in that: The top of the fixed frame (3) is slidably connected with a baffle, one side of the fixed frame (3) is fixedly installed with a guide frame (18), one side of the drying box (1) is inlaid with a controller (24), and the controller (24) is electrically connected with the electromagnetic vibrator (5), the heating pipe (14), the servo motor (17), the vibration motor (20), the valve, the air suction pump and the driving motor.

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