Device for improving scattering efficiency of drying machine
By designing a rotary shaft connecting assembly using a polytetrafluoro shaft sleeve and stainless steel bearing in the dryer, and installing high and low blades on the shaft body, the problem of easy deformation and damage of the dispersion device of the dryer under high temperature environment is solved, the material dispersion and drying efficiency is improved, and the product quality is ensured.
Patent Information
- Application Number
- CN202421477601.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-26
- Publication Date
- 2025-05-13
- Estimated Expiration
- 2034-06-26
AI Technical Summary
When the existing dryers operate at high speed under high temperature environments, the dispersion device is prone to deformation and damage, which affects the material to reach a fluidized boiling state, and thus affects the product quality.
A device including a dry and scattered cavity and a rotary shaft connection assembly is designed, and the original material is replaced with a PTFE bushing and stainless steel bearing, the gap between the bearing and the equipment is increased, and the high and low blades are provided on the shaft to enhance the stirring effect of the material.
It effectively avoids faults and shutdowns caused by thermal deformation, improves the breaking efficiency and drying effect of materials, and ensures the stability of product quality.
Smart Images
Figure CN222865449U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of material drying and dispersing, and in particular relates to a device for improving the dispersing efficiency of a dryer. Background Art
[0002] Fixed fluidized bed dryer is a highly efficient drying equipment. Since the solid particles are suspended in the drying medium during the drying process, the contact area between the fluid and the solid is large and the heat capacity coefficient is high.
[0003] At present, since the material after centrifugation still has a lot of moisture, some agglomerated materials will appear. It is difficult for such agglomerated materials to reach a fluidized boiling state by only relying on hot air to disperse them. In order to improve the dispersion efficiency, the existing dispersion device increases the speed from 142r / min to 284r / min. In addition, the dispersion device is very easy to deform under the high temperature environment of the dryer itself, which further damages the bearings and transmission parts. Therefore, based on the above problems, it is of great practical significance to design a new device that can improve the dispersion efficiency of the dryer. Utility Model Content
[0004] The utility model provides a device for improving the breaking efficiency of a dryer in order to solve the technical problem that high-speed operation in a high-temperature environment is very easy to deform and damage the equipment, which affects the dryer from reaching a fluidized boiling state and affects product quality.
[0005] The technical solution adopted by the utility model to solve this problem is:
[0006] A device for improving the dispersing efficiency of a dryer comprises a drying dispersing chamber and further comprises:
[0007] A drying and dispersing device, the number of which is at least one group, is rotatably arranged in the drying and dispersing chamber, the drying and dispersing device comprises a shaft body and dispersing blades arranged on the shaft body, and both ends of the shaft body are rotatably connected to the drying and dispersing chamber through a rotating shaft connection assembly;
[0008] A rotating shaft connection assembly, comprising a shaft core, a polytetrafluoroethylene sleeve, a stainless steel bearing and a polytetrafluoroethylene gasket;
[0009] The shaft body is a hollow shaft, and the shaft core is inserted and fixed at the end of the shaft body, wherein the shaft core on one side is connected to the driving motor.
[0010] In the above technical solution, the scattering blades are rod-type blades or paddle-type blades, and the scattering blades on the shaft body are divided into high blades and low blades, and the high blades and low blades are relatively arranged on both sides of the shaft body.
[0011] In the above technical solution, a transmission cavity is arranged outside the drying and breaking up cavity, a driving motor is arranged outside the transmission cavity, the motor shaft of the driving motor is connected to the shaft core through a coupling, and the shaft core, polytetrafluoroethylene sleeve, stainless steel bearing, polytetrafluoroethylene gasket and coupling are located in the transmission cavity.
[0012] In the above technical solution, the driving motor is a variable frequency motor.
[0013] In the above technical solution, the drying and breaking up device is horizontally arranged in the lower area and / or the upper area of the drying and breaking up chamber.
[0014] In the above technical solution, the drying and dispersing chamber is divided into a material-raising and drying area and a material-raising and dispersing area according to the upper and lower positions. Multiple groups of drying and dispersing devices are arranged in the material-raising and drying area and the material-raising and dispersing area, and each group of drying and dispersing devices is arranged parallel to each other.
[0015] In the above technical solution, an air blast drying device is also included, which includes:
[0016] A blast chamber, which is arranged on the front / rear wall of the drying and scattering chamber, and on which a blast assembly is installed;
[0017] A straight air blowing assembly, comprising a plurality of air blowing ports arranged on the front / rear inner wall of the drying and scattering cavity, wherein the air blowing ports are connected to the air blowing chamber through a first pipe;
[0018] The exhaust chamber is arranged on the top wall of the drying and scattering cavity, and a filter component and an exhaust component are installed on the exhaust chamber.
[0019] In the above technical solution, the blast port is located at the upper part of the material raising and drying area.
[0020] In the above technical solution, the blast drying device further includes an axial blast assembly, and the axial blast assembly includes a blast shaft and a second pipe connected between the blast shaft and the blast chamber.
[0021] In the above technical solution, the shaft body is evenly distributed with air blowing holes, the shaft core away from the driving motor is a hollow shaft, the air blowing shaft is inserted into the shaft core and the shaft body and is rotatably connected to the shaft core through a sealed bearing, and the second pipe is fixed to the outer wall of the drying and scattering cavity through a fixing device.
[0022] The advantages and positive effects of the utility model are:
[0023] 1. In the utility model, the nylon sleeve of the original equipment is replaced with a polytetrafluoroethylene sleeve, which greatly improves the heat resistance of the sleeve; at the same time, a polytetrafluoroethylene gasket is added to increase the gap between the bearing and the equipment, effectively avoiding the rotation scratches caused by thermal deformation; in addition, the original carbon steel bearing is replaced with a stainless steel bearing to enhance its corrosion resistance. The above improvements can not only avoid the shutdown caused by overheating and deformation, but also avoid the product environmental pollution caused by material deformation and melting.
[0024] 2. In the utility model, when the shaft rotates, the cooperation of the high blades and the low blades can make the material produce a lifting and falling effect of varying heights, which can make the material breaking movement more intense, and then help the material to be quickly and evenly mixed, which can greatly improve the breaking efficiency.
[0025] 3. In the utility model, the drying and dispersing chamber is divided into a material lifting and drying area and a material lifting and dispersing area according to the upper and lower positions. Multiple groups of drying and dispersing devices are arranged in the material lifting and drying area and the material lifting and dispersing area. Under the rotation of the multiple groups of drying and dispersing devices, the materials are lifted to achieve material lifting. The drying and dispersing devices in the lower area mainly play a stirring and dispersing role, which can greatly improve the dispersing and drying efficiency.
[0026] 4. In the utility model, the drying method combining straight blast and axial blast can make the hot air fully contact with the material while the material is scattered, thus greatly improving the material drying effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] The technical solution of the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments, but it should be understood that these drawings are designed only for the purpose of explanation and are not intended to limit the scope of the utility model. In addition, unless otherwise specified, these drawings are only intended to conceptually illustrate the structural configurations described herein and are not necessarily drawn to scale.
[0028] Figure 1 is a cross-sectional view of Example 1;
[0029] Figure 2 is a schematic diagram of a half-cut three-dimensional structure of Example 1;
[0030] Figure 3 is a schematic diagram of a half-cutaway three-dimensional structure of Example 2;
[0031] Figure 4 yes Figure 3 The main view of
[0032] Figure 5 yes Figure 3 A top view of
[0033] Figure 6yes Figure 3 Rear view of
[0034] Figure 7 The structure diagram of the drying and disintegrating device, the rotating shaft connecting assembly and the blast drying device in the assembled state in Example 2 is shown in FIG. Figure 1 ;
[0035] Figure 8 yes Figure 7 Exploded diagram of
[0036] Fig. 9 yes Figure 7 A top view of
[0037] Fig.10 yes Fig. 9 Exploded diagram of
[0038] Fig.11 yes Figure 7 Rear view of
[0039] Fig.12 The structure diagram of the drying and disintegrating device, the rotating shaft connecting assembly and the blast drying device in the assembled state in Example 2 is shown in FIG. Figure 2 ;
[0040] Fig.13 yes Fig.12 Exploded diagram of
[0041] In the figure: 1-drying and breaking up chamber; 2-shaft body; 3-shaft core; 4-polytetrafluoroethylene sleeve; 5-stainless steel bearing; 6-polytetrafluoroethylene gasket; 7-driving motor; 8-high blades; 9-low blades; 10-transmission chamber; 11-coupling; 12-blast chamber; 13-blast assembly; 14-blast port; 15-first pipeline; 16-exhaust chamber; 17-blast shaft; 18-second pipeline; 19-blast through hole; 20-sealed bearing; 21-fixing part. DETAILED DESCRIPTION
[0042] First of all, it should be noted that the specific structure, features and advantages of the present invention will be specifically described below by way of example, but all descriptions are only for illustration and should not be understood as limiting the present invention in any way. In addition, any single technical feature described or implied in the embodiments mentioned herein, or any single technical feature displayed or implied in the drawings, can still be combined or deleted between these technical features (or their equivalents) to obtain more other embodiments of the present invention that may not be directly mentioned in this document. In addition, in order to simplify the drawings, the same or similar technical features may be marked in only one place in the same drawing.
[0043] In the present utility model, unless otherwise clearly specified and limited, the terms "installation", "setting", "connection", "fixation", "screwing" and the like 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined, for ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances. The present utility model is described in detail below in conjunction with the accompanying drawings.
[0044] Embodiment 1:
[0045] A device for improving the scattering efficiency of a dryer comprises a drying scattering chamber 1, a drying scattering device and a rotating shaft connecting assembly, wherein:
[0046] A drying and dispersing device, the number of which is at least one group, is rotatably arranged in a drying and dispersing chamber 1, the drying and dispersing device comprises a shaft body 2 and dispersing blades arranged on the shaft body 2, and both ends of the shaft body 2 are rotatably connected to the drying and dispersing chamber 1 through a rotating shaft connection assembly;
[0047] A rotating shaft connection assembly, comprising a shaft core 3, a polytetrafluoroethylene sleeve 4, a stainless steel bearing 5 and a polytetrafluoroethylene gasket 6;
[0048] The shaft body 2 is a hollow shaft, and the shaft core 3 is inserted and fixed at the end of the shaft body 2. The shaft core 3 is rotatably connected to the side wall of the drying and scattering chamber 1 through a polytetrafluoroethylene sleeve 4, a stainless steel bearing 5 and a polytetrafluoroethylene gasket 6, and the shaft core 3 on one side is connected to a driving motor 7.
[0049] In this embodiment, Figure 1 As shown in the figure, the original nylon sleeve of the equipment is replaced with a polytetrafluoroethylene sleeve, which greatly improves the heat resistance of the sleeve; at the same time, a polytetrafluoroethylene gasket is added to increase the gap between the bearing and the equipment, effectively avoiding the rotation scratches caused by thermal deformation; in addition, the original carbon steel bearing is replaced with a stainless steel bearing to enhance its corrosion resistance. The above improvements can not only avoid the failure shutdown caused by overheating and deformation, but also avoid the product environmental pollution caused by material deformation and melting.
[0050] Furthermore, in the present embodiment, it can also be considered that the scattering blades are rod-type blades or paddle-type blades, and the scattering blades on the shaft body 2 are divided into high blades 8 and low blades 9, and the height of the high blades 8 is higher than the height of the low blades 9, and the high blades 8 and the low blades 9 are relatively arranged on both sides of the shaft body 2. When the shaft body rotates, the cooperation of the high blades 8 and the low blades 9 causes the material to be lifted and fallen at different heights, which can make the material stirring movement more intense, thereby helping the material to be quickly and evenly stirred, and the scattering efficiency can be greatly improved.
[0051] Furthermore, in this embodiment, it can also be considered that a transmission cavity 10 is arranged outside the drying and breaking up cavity 1, and a driving motor 7 is arranged outside the transmission cavity 10. The motor shaft of the driving motor 7 is connected to the shaft core 3 through a coupling 11. The shaft core 3, the polytetrafluoroethylene sleeve 4, the stainless steel bearing 5, the polytetrafluoroethylene gasket 6 and the coupling 11 are located in the transmission cavity 10, and the transmission cavity 10 protects the polytetrafluoroethylene sleeve 4, the stainless steel bearing 5, the polytetrafluoroethylene gasket 6 and the coupling 11.
[0052] Furthermore, in this embodiment, it can also be considered that the driving motor 7 is a variable frequency motor.
[0053] Furthermore, in this embodiment, it can also be considered that the drying and breaking up device is horizontally arranged in the lower area and / or upper area of the drying and breaking up chamber 1. Taking this embodiment as an example, the drying and breaking up device is horizontally arranged in the lower area of the drying and breaking up chamber 1.
[0054] Embodiment 2:
[0055] Embodiment 2 of the present invention is further improved on the basis of embodiment 1 so as to give full play to the technical advantages of the present invention, which is described below by way of example.
[0056] For example: Figure 3-13 As shown, the drying and dispersing chamber 1 is divided into a material-raising drying area and a material-raising and dispersing area according to the upper and lower positions. Multiple groups of drying and dispersing devices are arranged in both the material-raising drying area and the material-raising and dispersing area, and each group of drying and dispersing devices is arranged parallel to each other. Under the rotation of the drying and dispersing device, the material is lifted to achieve material raising, wherein the drying and dispersing device in the lower area mainly plays a stirring and dispersing role, and the drying and dispersing device in the lower area mainly plays a stirring and drying role.
[0057] Furthermore, it can also be considered in this embodiment that an air blast drying device is also included, which includes:
[0058] A blast chamber 12, which is arranged on the front / rear wall of the drying and scattering chamber 1, and on which a blast assembly 13 is installed. The blast assembly 13 can be, but is not limited to, a heater and a blower that can generate hot air;
[0059] A straight air blowing assembly, comprising a plurality of air blowing ports 14 arranged on the front / rear inner wall of the drying and scattering chamber 1, wherein the air blowing ports 14 are connected to the air blowing chamber 12 via a first pipe 15;
[0060] The exhaust chamber 16 is arranged on the top wall of the drying and scattering cavity 1, and is equipped with a filter component and an exhaust component. The filter component is used to intercept materials and only discharge the hot air after heat exchange out of the drying and scattering cavity 1.
[0061] In this embodiment, hot air enters the drying and scattering chamber 1 through the blast chamber 12, the first pipe 15 and the blast port 14, and can dry the material lifted by the drying and scattering device. This straight blast drying method can make the hot air and the material fully contact, greatly improving the material drying effect.
[0062] Furthermore, in this embodiment, it can also be considered that the blast port 14 is located at the upper part of the material raising and drying area.
[0063] Furthermore, in this embodiment, it can also be considered that the blast drying device further includes an axial blast assembly, and the axial blast assembly includes a blast shaft 17 and a second pipe 18 connected between the blast shaft 17 and the blast chamber 12 .
[0064] Furthermore, in the present embodiment, it can also be considered that the shaft body 2 is evenly distributed with air blowing holes 19, the shaft core 3 on the side away from the driving motor 7 is a hollow shaft, the air blowing shaft 17 is inserted into the shaft core 3 and the shaft body 2 and is rotatably connected to the shaft core 3 through a sealing bearing 20, and the second pipe 18 is fixed to the outer wall of the drying and scattering chamber 1 through a fixing part 21. The second pipe 18 is fixed on the outer wall of the drying and breaking up chamber 1 through a fixing member 21. The input end of the second pipe 18 is connected to the blast chamber, and the output end is divided into a plurality of branches (blast shafts 17). The number of branch pipelines is the same as the number of drying and breaking up devices and is connected one by one. Each blast shaft 17 is rotatably connected to the shaft core 3 through a sealed bearing, so that the blast shaft 17 can maintain its position when the shaft core rotates, thereby playing a role in blast transmission. The hot air enters the shaft core 3 and the shaft body 2 through the blast chamber 12, the second pipe 18 and the blast shaft 17, and then is transported to the drying and breaking up chamber through the blast through hole 19 on the shaft body 2. Through this axial drying method, the hot air can be fully in contact with the material while the material is broken up, thereby further improving the material drying effect.
[0065] The above embodiments describe the present invention in detail, but the above contents are only preferred embodiments of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of application of the present invention shall still fall within the scope of the patent coverage of the present invention.
Claims
1. A device for improving the breaking efficiency of a dryer, comprising a drying breaking chamber, characterized in that: Also includes: A drying and dispersing device, the number of which is at least one group, is rotatably arranged in the drying and dispersing chamber, the drying and dispersing device comprises a shaft body and dispersing blades arranged on the shaft body, and both ends of the shaft body are rotatably connected to the drying and dispersing chamber through a rotating shaft connection assembly; A rotating shaft connection assembly, comprising a shaft core, a polytetrafluoroethylene sleeve, a stainless steel bearing and a polytetrafluoroethylene gasket; The shaft body is a hollow shaft, and the shaft core is inserted and fixed at the end of the shaft body, wherein the shaft core on one side is connected to the driving motor.
2. A device for improving the breaking efficiency of a dryer according to claim 1, characterized in that: The scattering blades are rod-type blades or paddle-type blades, and the scattering blades on the shaft body are divided into high blades and low blades, and the high blades and the low blades are relatively arranged on both sides of the shaft body.
3. The device for improving the breaking efficiency of a dryer according to claim 1, characterized in that: A transmission cavity is arranged outside the drying and breaking up cavity, a driving motor is arranged outside the transmission cavity, a motor shaft of the driving motor is connected to the shaft core through a coupling, and the shaft core, polytetrafluoroethylene sleeve, stainless steel bearing, polytetrafluoroethylene gasket and coupling are located in the transmission cavity.
4. A device for improving the breaking efficiency of a dryer according to claim 3, characterized in that: The driving motor is a variable frequency motor.
5. The device for improving the breaking efficiency of a dryer according to claim 1, characterized in that: The drying and breaking up device is horizontally arranged in the lower area and / or the upper area of the drying and breaking up chamber.
6. The device for improving the breaking efficiency of a dryer according to claim 1, characterized in that: The drying and dispersing chamber is divided into a material-raising drying area and a material-raising dispersing area according to the upper and lower positions. Multiple groups of drying and dispersing devices are arranged in the material-raising drying area and the material-raising dispersing area, and each group of drying and dispersing devices is arranged in parallel with each other.
7. The device for improving the breaking efficiency of a dryer according to claim 6, characterized in that: Also included is an air drying device, which includes: A blast chamber, which is arranged on the front / rear wall of the drying and scattering chamber, and on which a blast assembly is installed; A straight air blowing assembly, comprising a plurality of air blowing ports arranged on the front / rear inner wall of the drying and scattering cavity, wherein the air blowing ports are connected to the air blowing chamber through a first pipe; The exhaust chamber is arranged on the top wall of the drying and scattering cavity, and a filter component and an exhaust component are installed on the exhaust chamber.
8. The device for improving the breaking efficiency of a dryer according to claim 7, characterized in that: The blast port is located at the upper part of the material raising and drying area.
9. The device for improving the breaking efficiency of a dryer according to claim 7, characterized in that: The blast drying device further comprises an axial blast assembly, wherein the axial blast assembly comprises a blast shaft and a second pipe connected between the blast shaft and the blast chamber.
10. The device for improving the breaking efficiency of a dryer according to claim 9, characterized in that: The shaft body is evenly distributed with air blowing holes, the shaft core away from the driving motor is a hollow shaft, the air blowing shaft is inserted into the shaft core and the shaft body and is rotatably connected to the shaft core through a sealed bearing, and the second pipe is fixed to the outer wall of the drying and scattering cavity through a fixing part.