Drying tower
By employing a pull-out material tray and annular support box structure in the drying tower, combined with perforated plates and air duct assemblies, the problem of uneven drying caused by hot air entering from the bottom was solved, achieving uniform material drying and consistent product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SANMING FENGRUN CHEM
- Filing Date
- 2025-05-12
- Publication Date
- 2026-04-28
AI Technical Summary
In existing drying tower structures, hot air enters from the bottom, resulting in high temperatures at the bottom and insufficient heat at the top, causing uneven drying and affecting product quality consistency.
The material tray and ring support box structure are adopted. Combined with the first and second hot air output components, the hot air is evenly distributed and replenished through the perforated plate and air duct assembly to ensure uniform drying.
It achieves uniform material drying and consistent product quality, adapts to different geographical locations and environments, reduces heat loss, and improves drying efficiency.
Smart Images
Figure CN224175482U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of drying technology, and more specifically, to a drying tower. Background Technology
[0002] A drying tower is a large piece of equipment used to dry materials. It removes moisture from materials through heating and ventilation systems to bring them to the specified moisture content standard. In the preparation of silica, whether by precipitation or gas phase method, the control of the moisture content in the product is crucial. A drying tower can reduce the moisture content of silica to a level that meets the product quality requirements.
[0003] In existing drying tower designs, the air inlet is located at the bottom of the tower, and hot air flows upward through the material layer. Perforated plates are often used to ensure that the incoming hot air is evenly distributed upwards. However, since the hot air enters from the bottom, the temperature at the bottom is relatively high in the initial stage. As the hot air flows upwards, the heat is continuously absorbed by the material, and the temperature gradually decreases. This results in overheating at the bottom and insufficient heat at the top, causing uneven drying and affecting the consistency of product quality. Summary of the Invention
[0004] The purpose of this application is to provide a drying tower that can solve the technical problem that when using existing drying towers, hot air enters from the bottom of the drying tower. Initially, the bottom temperature is high, but as the air flows upward, the heat is absorbed by the material, resulting in overheating at the bottom and insufficient heat at the top, causing uneven drying and affecting the consistency of product quality.
[0005] This application provides a drying tower, including a shell, in which multiple material trays are removably arranged, and multiple air vents are evenly distributed on the material trays. A first hot air output component is provided inside the shell, located below the material trays. An air outlet pipe is connected to the top of the shell. An annular support box is provided at the bottom of the material trays, and the annular support box is fixed inside the shell. Multiple air vents are evenly distributed on the inner ring wall of the annular support box. An air duct assembly is connected to the outside of the annular support box, and the air duct assembly is connected to a second hot air output component.
[0006] Furthermore, the first hot air output component includes a first fan, a first heat source, and a perforated plate. The perforated plate is fixed inside the housing, the first heat source is located below the perforated plate, and the first fan is fixed at the bottom of the housing.
[0007] Furthermore, the duct assembly includes a main pipe and multiple branch pipes, with the annular support box corresponding to each branch pipe. The annular support box is connected to the main pipe through the branch pipes, and the main pipe is connected to the second hot air output assembly.
[0008] Furthermore, the second hot air output component includes a hot air box, a second fan, and a second heat source. The main pipe is connected to the top of the hot air box, the second heat source is located inside the hot air box, and the second fan is fixed to the bottom of the hot air box.
[0009] Furthermore, the branch pipe is equipped with a regulating valve.
[0010] Furthermore, both the first heat source and the second heat source are electric heating tubes.
[0011] Furthermore, the air outlet duct is equipped with a retractable filter screen.
[0012] Furthermore, sealing rings are provided at the connection between the material tray and the housing, and at the connection between the filter screen and the air outlet pipe.
[0013] The beneficial effects of this utility model are:
[0014] In use, the material is placed on a retractable material tray inside the housing. The material tray has multiple evenly distributed ventilation holes. The first hot air output component generates hot air below the material tray. The hot air rises through the material tray and the material for drying. The top air outlet pipe discharges the humid hot air. As the hot air flows upward, heat is continuously absorbed by the material, and the temperature gradually decreases. The annular support box at the bottom of the material tray is connected to the second hot air output component through an air duct assembly. The hot air generated by the second hot air output component is delivered to the annular support box through the air duct assembly and blown out through the ventilation holes of the annular support box to supplement the hot air and prevent insufficient heat at the top. The first and second hot air output components work together to flexibly adjust the drying temperature, ensuring uniform drying of the material and consistent product quality. Attached Figure Description
[0015] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 These are schematic diagrams of structures in some embodiments of this application;
[0017] Figure 2 These are cross-sectional views of some embodiments of this application;
[0018] The reference numerals in the attached figures are as follows:
[0019] 1. Housing; 2. Material tray; 3. First hot air output assembly; 31. First fan; 32. First heat source; 33. Perforated plate; 4. Air outlet duct; 5. Annular support box; 6. Duct assembly; 61. Main pipe; 62. Branch pipe; 7. Second hot air output assembly; 71. Hot air box; 72. Second fan; 73. Second heat source; 8. Regulating valve; 9. Filter screen. Detailed Implementation
[0020] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0021] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.
[0022] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0023] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0024] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0025] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. Specific implementation examples:
[0027] like Figure 1 and Figure 2 As shown, this application provides a drying tower, including a shell 1. Multiple material trays 2 are removably arranged inside the shell 1, and multiple air vents are evenly distributed on the material trays 2. A first hot air output assembly 3 is provided inside the shell 1, located below the material trays 2. An air outlet pipe 4 is connected to the top of the shell 1. An annular support box 5 is provided at the bottom of the material trays 2, fixed inside the shell 1. Multiple air vents are evenly distributed on the inner ring wall of the annular support box 5. An air duct assembly 6 is connected to the outside of the annular support box 5, and the air duct assembly 6 is connected to a second hot air output assembly 7. In use, the material is placed on the removable material trays 2 inside the shell 1, and the material trays 2 are evenly distributed with multiple air vents. The first hot air... Output component 3 generates hot air below material tray 2. The hot air rises through material tray 2 and the material for drying. The top air outlet duct 4 discharges the humid hot air. As the hot air flows upward, heat is continuously absorbed by the material, and the temperature gradually decreases. The annular support box 5 at the bottom of material tray 2 is connected to the second hot air output component 7 through air duct assembly 6. The hot air generated by the second hot air output component 7 is delivered to the annular support box 5 through air duct assembly 6 and blown out through the vent of the annular support box 5 to supplement the hot air and prevent insufficient heat at the top. The first hot air output component 3 and the second hot air output component 7 work together to flexibly adjust the drying temperature, ensuring uniform drying of the material and consistent product quality.
[0028] like Figure 2 As shown, the first hot air output component 3 includes a first fan 31, a first heat source 32, and a perforated plate 33. The perforated plate 33 is fixed inside the housing 1, the first heat source 32 is located below the perforated plate 33, and the first fan 31 is fixed at the bottom of the housing 1. The perforated plate 33 can effectively disperse the hot air generated from the first heat source 32. When the first fan 31 blows the hot air from the bottom upwards, the perforated plate 33 plays the role of rectifying and uniformly distributing the concentrated hot air flow into numerous fine airflows, so that the hot air can uniformly pass upwards through the material tray 2 and thus fully contact the material.
[0029] like Figure 1 and Figure 2As shown, the duct assembly 6 includes a main pipe 61 and multiple branch pipes 62. The annular support box 5 corresponds to each branch pipe 62. The annular support box 5 is connected to the main pipe 61 through the branch pipes 62. The main pipe 61 is connected to the second hot air output assembly 7. The hot air generated by the second hot air output assembly 7 passes through the main pipe 61, then through the branch pipes 62 into the corresponding annular support box 5, and then is blown into the housing 1 through the ventilation holes of the annular support box 5.
[0030] like Figure 2 As shown, the second hot air output assembly 7 includes a hot air box 71, a second fan 72, and a second heat source 73. The main pipe 61 is connected to the top of the hot air box 71, the second heat source 73 is located inside the hot air box 71, and the second fan 72 is fixed to the bottom of the hot air box 71. The second fan 72 blows cold air into the hot air box 71, which is heated by the second heat source 73 to form hot air, and then enters the main pipe 61. The first hot air output assembly 3 and the second hot air output assembly 7 are independent of each other, which facilitates control.
[0031] like Figure 2 As shown, the branch pipe 62 is equipped with a regulating valve 8, which can individually adjust the hot air flow rate of each annular support box 5. It can control the hot air supply according to the drying needs of different positions of the material tray 2, adjust the hot air flow rate of the corresponding area, and supplement the area with insufficient hot air heat according to actual needs, so as to ensure that the material on the entire material tray 2 dries more evenly.
[0032] like Figure 2 As shown, both the first heating source 32 and the second heating source 73 are electric heating tubes. The electric heating method is not limited by fuel supply and combustion conditions, nor is it affected by external environmental factors such as insufficient gas supply or differences in fuel quality. Whether in indoor or outdoor environments, as long as there is a stable power supply, the drying tower can work normally. This makes the drying tower highly adaptable to different geographical locations and working environments.
[0033] like Figure 1 and Figure 2 As shown, the air outlet pipe 4 is equipped with a removable filter screen 9. In this embodiment, the air outlet pipe 4 is connected to the dust treatment equipment. The filter screen 9 can effectively intercept the dust particles discharged with the hot air during the drying process. The intercepted dust material can be recycled and reused, reducing material loss. The removable design makes it convenient to install, disassemble and clean the filter screen 9.
[0034] like Figure 1 and Figure 2As shown, sealing rings (not shown in the figure) are provided at the connection between the material tray 2 and the shell 1, and at the connection between the filter plate 9 and the air outlet pipe 4. These can effectively prevent hot air from leaking from the gap between the material tray 2 and the shell 1. Hot air leakage will cause heat loss and reduce drying efficiency. Through good sealing, it can be ensured that the hot air is concentrated in the area of the material tray 2 and fully exchanges heat with the material, thereby making the material drying process more efficient. In addition, an insulation layer (not shown in the figure) is provided on the outside of the shell 1 to further reduce heat loss.
[0035] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A drying tower, characterized in that: The device includes a housing, within which multiple material trays are retractably arranged, each material tray having multiple evenly distributed ventilation holes. A first hot air output assembly is located below the material trays within the housing. An air outlet pipe is connected to the top of the housing. An annular support box is located at the bottom of each material tray, fixed within the housing. Multiple ventilation holes are evenly distributed on the inner wall of the annular support box. An air duct assembly is connected to the outside of the annular support box, and the air duct assembly is connected to a second hot air output assembly.
2. The drying tower according to claim 1, characterized in that: The first hot air output component includes a first fan, a first heat source, and a perforated plate. The perforated plate is fixed inside the housing, the first heat source is located below the perforated plate, and the first fan is fixed at the bottom of the housing.
3. A drying tower according to claim 2, characterized in that: The duct assembly includes a main pipe and multiple branch pipes. The annular support box corresponds to each branch pipe. The annular support box is connected to the main pipe through the branch pipes. The main pipe is connected to the second hot air output assembly.
4. A drying tower according to claim 3, characterized in that: The second hot air output component includes a hot air box, a second fan, and a second heat source. The main pipe is connected to the top of the hot air box, the second heat source is located inside the hot air box, and the second fan is fixed to the bottom of the hot air box.
5. A drying tower according to claim 3, characterized in that: The branch pipe is equipped with a regulating valve.
6. A drying tower according to claim 4, characterized in that: Both the first heating source and the second heating source are electric heating tubes.
7. A drying tower according to claim 1, characterized in that: The air outlet duct is equipped with a retractable filter screen.
8. A drying tower according to claim 7, characterized in that: Sealing rings are provided at the connection between the material tray and the housing, and at the connection between the filter plate and the air outlet pipe.