Ceramic diaphragm material drying device

Abstract

The utility model discloses a ceramic diaphragm material drying device which comprises a shaftless screw conveyor, the shaftless screw conveyor is arranged in an inclined state, the shaftless screw conveyor comprises a machine body shell, a feeding port is formed in the upper portion of the machine body shell, a discharging port is formed in the lower portion of the machine body shell, and a discharging guide plate is arranged on the periphery of the discharging port; the third-level heating box, the second-level heating box and the first-level heating box are connected to the periphery of the shaftless spiral conveyor in a sleeving mode at equal intervals, the first-level heating box is closest to the feeding port, the third-level heating box is farthest from the feeding port, the second-level heating box is located between the third-level heating box and the first-level heating box, and the third-level heating box, the second-level heating box and the first-level heating box are the same in structure; and the third-stage heating box comprises a shell. The drying efficiency can be improved, materials are gradually heated through graded gradient heating, stress concentration caused by sudden temperature change is avoided, the drying time is shortened, and the drying efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of ceramic diaphragm material processing technology, and in particular to a ceramic diaphragm material drying device. Background Technology

[0002] In the production of ceramic membrane materials, the drying process is one of the key steps to ensure material performance and quality. Due to their unique physical and chemical properties, ceramic membrane materials (such as those used in lithium-ion batteries) require strict control of temperature and humidity during the drying process to prevent cracking, deformation, or performance degradation. However, existing drying equipment for ceramic membrane materials has many shortcomings in practical applications, limiting further improvements in production efficiency and product quality.

[0003] First, traditional ceramic diaphragm material drying equipment (such as ovens or simple conveyor dryers) typically uses a single-temperature heating method, making it difficult to achieve a temperature gradient distribution. This heating method easily leads to uneven heating of the material; areas near the heat source may overheat and crack, while areas farther from the heat source may not be completely dried, affecting overall drying efficiency and material quality. Second, ceramic diaphragm materials have a certain degree of viscosity in a wet state. Traditional equipment often uses shafted screw conveyors for material transport, but the material easily adheres to the screw shaft or blades, causing blockages during transport and affecting the continuity and stability of production. Furthermore, existing drying equipment lacks effective insulation measures, resulting in significant heat loss, high energy consumption, and increased production costs. Simultaneously, traditional equipment lacks structural stability under prolonged operation or high loads, making it prone to failure due to vibration or imbalance, affecting production efficiency and equipment lifespan. Finally, the collection and transport of dried material usually requires manual operation, resulting in low automation, increased labor intensity, and reduced production efficiency.

[0004] To address the aforementioned problems, there is an urgent need for a ceramic diaphragm material drying device capable of achieving gradient heating, reducing material adhesion, lowering energy consumption, improving stability, and increasing automation, in order to meet the demands of modern industrial production for high efficiency, stability, and energy conservation. This invention, by introducing technologies such as staged heating, shaftless screw conveying, heat preservation design, and automatic conveying, aims to overcome the shortcomings of existing technologies and provide a highly efficient, energy-saving, and stable drying solution, offering better technical support for the production of ceramic diaphragm materials. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a ceramic diaphragm material drying device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A ceramic diaphragm material drying device includes a shaftless screw conveyor, which is inclined and includes a housing. An inlet is located at the top of the housing, and a outlet is located at the bottom. A discharge guide plate surrounds the outlet. A three-stage heating box, a two-stage heating box, and a one-stage heating box are equidistantly fitted around the shaftless screw conveyor. The one-stage heating box is closest to the inlet, the three-stage heating box is furthest from the inlet, and the two-stage heating box is located between the three-stage and one-stage heating boxes. The three-stage, two-stage, and one-stage heating boxes have identical structures. The three-stage heating box includes a shell with ceramic heating elements fixed to the housing. An insulation plate is located on the outer side of the shell. A supporting shell is provided to fix the three-stage, two-stage, and one-stage heating boxes.

[0008] Preferably, the shaftless screw conveyor also includes a motor, which is connected to a reducer, which is connected to a rotating shaft. The rotating shaft rotates through the outer casing and is located inside the outer casing. The outer casing is fixed with shaftless screw blades, which are located inside the outer casing.

[0009] Preferably, the supporting shell includes a first side plate and a second side plate arranged symmetrically, the first side plate and the second side plate being fixed to the sides of the third heating box, the second heating box and the first heating box respectively, and a top cover being fixed between the top ends of the first side plate and the second side plate; it also includes supporting feet disposed on the outside of the first side plate and the second side plate.

[0010] Preferably, a conveyor is provided between the first side plate and the second side plate, the conveyor is located directly below the discharge port, and the end of the conveyor is placed outside the supporting shell.

[0011] Preferably, the tilt angle of the shaftless screw conveyor is in the range of 15°-30°.

[0012] Preferably, the surface of the shaftless helical blade is coated with a polytetrafluoroethylene coating.

[0013] This utility model has the following beneficial effects:

[0014] 1. This utility model can improve drying efficiency: graded gradient heating allows the material to gradually heat up, avoiding stress concentration caused by sudden temperature changes, shortening the drying time, and improving drying efficiency.

[0015] 2. This utility model can improve the drying quality of materials: gradient heating and precise temperature control of ceramic heating plates ensure that the materials are heated evenly during the drying process, avoiding the problems of local overheating or incomplete drying, thus improving the drying quality of ceramic diaphragm materials and reducing the risk of cracking or deformation.

[0016] 3. This utility model achieves energy reduction: the insulation board reduces heat loss, and the high thermal efficiency of the ceramic heating element further reduces energy consumption, thereby reducing the overall operating cost of the equipment.

[0017] 4. This utility model enhances the stability of equipment operation: the inclined design of the shaftless screw conveyor and the stable structure of the supporting shell ensure the stability of the equipment under high load operation and reduce the risk of vibration and failure. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the drying device;

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of the drying device;

[0020] Figure 3 This is a schematic diagram of the exploded structure of the drying device;

[0021] Figure 4 This is a schematic diagram of a three-stage heating chamber.

[0022] In the diagram: 1. Shaftless screw conveyor; 101. Machine casing; 102. Feed inlet; 103. Discharge outlet; 104. Discharge guide plate; 105. Motor; 106. Reducer; 107. Rotating shaft; 108. Shaftless screw blade; 2. Three-stage heating box; 201. Shell; 202. Ceramic heating element; 203. Insulation board; 3. Two-stage heating box; 4. One-stage heating box; 5. Supporting casing; 501. First side plate; 502. Second side plate; 503. Top cover; 504. Supporting feet; 6. Conveyor. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Reference Figure 1-4A ceramic diaphragm material drying device includes a shaftless screw conveyor 1, which is inclined and includes a housing 101. An inlet 102 is located above the housing 101, and a discharge port 103 is located below the housing 101. A discharge guide plate 104 is arranged around the discharge port 103. A three-stage heating box 2, a two-stage heating box 3, and a first-stage heating box 4 are equidistantly sleeved around the shaftless screw conveyor 1, with the first-stage heating box 4 being closest to the inlet 102. The third-stage heating box 2 is furthest from the feed inlet 102. The second-stage heating box 3 is located in the middle of the third-stage heating box 2 and the first-stage heating box 4. The third-stage heating box 2, the second-stage heating box 3 and the first-stage heating box 4 have the same structure. The third-stage heating box 2 includes a shell 201. A ceramic heating element 202 is provided on the inner side of the shell 201. The ceramic heating element 202 is fixed to the outer shell 101 of the machine body. An insulation plate 203 is provided on the outer side of the shell 201. A supporting shell 5 is used to fix the third-stage heating box 2, the second-stage heating box 3 and the first-stage heating box 4.

[0025] In this embodiment, the shaftless screw conveyor 1 serves as the core conveying component of the device. It is positioned at an angle to convey ceramic diaphragm material. The shaftless design prevents material blockage, the angled arrangement facilitates material flow, and the shaftless structure reduces adhesion and blockage, ensuring the continuity and stability of the conveying process. The outer casing 101 serves as the main structure of the shaftless screw conveyor 1, protecting internal components and providing an installation platform, enhancing the durability of the equipment, and protecting the internal shaftless screw blades 108 and materials from external interference. The inlet 102 is located above the outer casing 101 and is used to input the ceramic diaphragm material into the conveyor. The shaftless screw conveyor 1 facilitates material entry into the device, optimizing the efficiency of the feeding process; the discharge port 103, located below the outer casing 101, discharges the dried material, ensuring smooth output and preventing accumulation; the discharge guide plate 104, positioned around the discharge port 103, guides the dried material flow in a designated direction, improving material collection efficiency, reducing spillage, and enhancing automation; the tertiary heating box 2, fitted around the shaftless screw conveyor 1 and furthest from the inlet 102, is responsible for the high-temperature drying stage, providing a high-temperature environment to ensure thorough drying and improve drying quality; the secondary... Heating chamber 3 is located between the tertiary heating chamber 2 and the primary heating chamber 4, responsible for medium-temperature drying, achieving gradient heating, preventing uneven heating of materials, and optimizing the drying process; primary heating chamber 4 is located closest to the feed inlet 102, responsible for low-temperature pre-drying, gradually increasing the temperature, reducing stress concentration in the material, avoiding cracking, and improving drying uniformity; shell 201 serves as the outer shell of the heating chamber, housing the ceramic heating element 202 and fixing it to the outer shell 101, providing a stable heating environment and protecting internal components; the ceramic heating element 202 is fixed inside the shell 201 for heating the ceramic diaphragm material, with rapid heating... Uniform temperature ensures precise temperature control and improves drying efficiency. Insulation plate 203 is installed on the outside of shell 201 to reduce heat loss, lower energy consumption, enhance thermal efficiency, and extend equipment lifespan. Support shell 5 secures the tertiary heating chamber 2, secondary heating chamber 3, and primary heating chamber 4, providing overall structural support, enhancing equipment stability, reducing vibration and failure risks, and ensuring reliable long-term operation. Through the synergistic effect of these structures, this device achieves gradient drying of ceramic diaphragm materials, reduces clogging, lowers energy consumption, improves stability and automation, effectively enhancing drying efficiency and product quality.

[0026] In this embodiment, the design details of gradient heating are as follows: Gradient heating is achieved through three-stage heating boxes 2, two-stage heating boxes 3, and one-stage heating box 4, which are equidistantly nested around the shaftless screw conveyor 1. The specific structure and design details are as follows: Distribution of the staged heating boxes: One-stage heating box 4: Located closest to the inlet 102, i.e., the first heating zone after the material enters the shaftless screw conveyor 1; Two-stage heating box 3: Located between the one-stage heating box 4 and the three-stage heating box 2, serving as a transitional heating zone; Three-stage heating box 2: Located furthest from the inlet 102, close to the outlet 103, serving as the final high-temperature drying zone; Equidistant arrangement: The three heating boxes are arranged along the axis of the shaftless screw conveyor 1. The heating chambers are evenly distributed to ensure that materials gradually pass through different temperature zones during transport. The structure of the heating chambers includes: Shell 201: Each heating chamber consists of a shell 201, which is fitted around the outer casing 101 of the machine body, forming an independent heating space; Ceramic heating element 202: A ceramic heating element 202 is fixed inside the shell 201, directly contacting the outer casing 101 and heating the transported material through heat conduction; Temperature gradient design: The first-stage heating chamber 4 has the lowest temperature, the second-stage heating chamber 3 has a moderate temperature, and the third-stage heating chamber 2 has the highest temperature, forming a gradient distribution from low to high temperature; The actual temperature can be set according to the material characteristics, for example, the first-stage heating chamber 4 can be set to 50-80°C. The secondary heating box 3 is 80-120℃, and the tertiary heating box 2 is 120-150℃ (the specific temperature needs to be adjusted according to the process requirements of the ceramic diaphragm material); Insulation measures: Insulation board 203: An insulation board 203 is installed on the outside of the shell 201 to reduce heat loss, ensure the temperature stability in each heating box, and avoid interference from the external environment on the temperature gradient; Coordination of conveying and heating: Shaftless screw conveyor 1: The material enters the shaftless screw conveyor 1 through the feed port 102, and under the push of the shaftless screw blades 108, it gradually moves from the primary heating box 4 to the tertiary heating box 2, realizing continuous heating of the material in different temperature zones; II. The role of gradient heating The design of gradient heating in ceramic diaphragm materials The following key functions were employed during the material drying process: gradual heating to avoid stress concentration: Ceramic diaphragm materials have a certain moisture content in a wet state. If directly exposed to a high-temperature environment, rapid evaporation may cause significant thermal stress inside the material, leading to cracking or deformation. Through low-temperature preheating in the first-stage heating chamber 4 (lower temperatures such as 50-80℃), the surface moisture evaporates slowly, reducing thermal shock. The second-stage heating chamber 3 (moderate temperatures such as 80-120℃) further increases the temperature, accelerating moisture evaporation. The third-stage heating chamber 2 (high temperatures such as 120-150℃) completes the final drying, ensuring complete removal of moisture from the material's interior. This gradual heating process effectively reduces thermal stress and improves the drying quality of the material.Staged drying optimizes efficiency: Different temperature zones correspond to different drying stages: the first-stage heating chamber 4 primarily removes surface moisture, the second-stage heating chamber 3 de-dries internal moisture, and the third-stage heating chamber 2 ensures the material is completely dry. This staged drying method avoids the efficiency bottleneck of single-temperature drying (e.g., a single high temperature may lead to over-drying of the surface but not the interior, or a single low temperature may result in excessively long drying time), thus shortening the overall drying time. It adapts to material characteristics: Ceramic diaphragm materials are typically temperature-sensitive and require precise control of the drying process. Gradient heating, through graded temperature control, can set different temperature ranges according to material characteristics, meeting process requirements and avoiding material performance degradation due to sudden temperature changes. III. Effects of Gradient Heating: The specific effects of gradient heating design include: Improved drying efficiency: During transport, the material sequentially passes through low-temperature, moderate-temperature, and high-temperature zones, gradually removing moisture and avoiding excessively long drying times at a single temperature, significantly shortening the drying cycle; Improved drying quality: Gradual heating avoids thermal stress concentration caused by sudden temperature changes, reducing the risk of material cracking, deformation, or performance degradation, ensuring the quality of the ceramic diaphragm material. The gradient heating design of different heating chambers ensures uniform heating of the material throughout the entire conveying path, avoiding localized overheating or undried conditions and improving drying uniformity. It also reduces energy consumption by allowing appropriate temperatures at different stages, avoiding energy waste from single high-temperature heating. Combined with the insulation plate 203, it further reduces heat loss and lowers overall energy consumption. Furthermore, it extends equipment lifespan by reducing wear on heating elements (such as ceramic heating plates 202) caused by high-temperature shocks, thus extending the service life of the heating chambers. The gradient heating system, through its staged design of primary heating chamber 4, secondary heating chamber 3, and tertiary heating chamber 2, achieves a gradual temperature increase from low to high temperatures, providing an efficient, uniform, and stable drying process for ceramic diaphragm materials. Its function is to avoid stress concentration, achieve staged drying, and adapt to material characteristics, resulting in improved drying efficiency, better drying quality, enhanced uniformity, reduced energy consumption, and extended equipment lifespan. This design effectively solves the shortcomings of traditional single-temperature drying and meets the demand for high-precision drying processes in the production of ceramic diaphragm materials.

[0027] In this utility model, the shaftless screw conveyor 1 also includes a motor 105, which is connected to a reducer 106. The reducer 106 is connected to a rotating shaft 107. The rotating shaft 107 rotates through the outer shell 101 and is placed inside the outer shell 101. The outer shell 101 is fixed with shaftless screw blades 108, which are located inside the outer shell 101.

[0028] In this embodiment, the motor 105 serves as the power source for the shaftless screw conveyor 1, providing the energy required to drive the rotating shaft 107 to rotate, ensuring the continuous operation of the shaftless screw conveyor 1, driving materials to move along an inclined path, and improving conveying efficiency and production continuity. The reducer 106 is connected to the motor 105 for transmission, adjusting the motor's output speed and transmitting power to the rotating shaft 107. Through the speed adjustment function of the reducer 106, the rotational speed of the rotating shaft 107 is optimized to adapt to the specific needs of conveying ceramic diaphragm materials, reducing material damage and improving conveying stability. The rotating shaft 107 is used to rotatably penetrate the outer casing 101 and is located inside it, connected to the reducer 106 for transmission, driving the shaftless helical blades 108 to rotate. As the core component of power transmission, the rotating shaft 107 ensures that the shaftless helical blades 108 can uniformly push the material, avoiding blockage and ensuring the smoothness of the conveying process. The outer casing 101 serves as the main structure of the shaftless screw conveyor 1, housing the rotating shaft 107 and the shaftless helical blades. The screw conveyor 108, with its mounting and protective functions, and housing 101, enhances the durability of the equipment, protecting internal components from external environmental influences while providing a stable heating space for gradient heating. The shaftless helical blades 108 are fixed inside the housing 101 and, driven by the rotating shaft 107, propel the ceramic diaphragm material along an inclined direction. The shaftless design avoids the adhesion and clogging problems of traditional shafted screw conveyors. Combined with a PTFE coating, it further reduces material stickiness, ensuring smooth material transport during the drying process. Through the synergistic effect of the above structures, the shaftless screw conveyor 1, via power transmission from the motor 105, reducer 106, and rotating shaft 107, drives the shaftless helical blades 108 within the housing 101, achieving inclined transport of the ceramic diaphragm material. Its effects include improved transport efficiency, reduced clogging and adhesion, enhanced equipment stability and adaptability, and reliable material transport support for gradient heating and drying processes.

[0029] In this utility model, the supporting shell 5 includes a first side plate 501 and a second side plate 502 arranged symmetrically. The first side plate 501 and the second side plate 502 are respectively fixed to the two sides of the three-stage heating box 2, the two-stage heating box 3 and the first-stage heating box 4. A top cover 503 is fixed between the top ends of the first side plate 501 and the second side plate 502. It also includes supporting feet 504 arranged on the outside of the first side plate 501 and the second side plate 502.

[0030] In this embodiment, the supporting shell 5 serves as the external support structure for the entire device, fixing and protecting the tertiary heating chamber 2, the secondary heating chamber 3, and the primary heating chamber 4, while also supporting the shaftless screw conveyor 1. The supporting shell 5, through its robust design, enhances the structural stability of the entire device, ensuring the safety and reliability of the equipment when operating in an inclined state. The first side plate 501 is symmetrically arranged on one side of the supporting shell 5, fixed to the left side of the tertiary heating chamber 2, the secondary heating chamber 3, and the primary heating chamber 4, forming part of the support frame. The first side plate 501 provides solid support. The first side plate 501 serves to fix the position of the heating box, preventing it from shifting due to vibration or torque during material transport, thus enhancing the overall stability of the device. The second side plate 502 is symmetrically positioned on the other side of the supporting shell 5, fixed to the right side of the tertiary heating box 2, secondary heating box 3, and primary heating box 4, forming a support frame together with the first side plate 501. The second side plate 502 works in conjunction with the first side plate 501 to evenly distribute the weight and force of the device, ensuring the stability of the heating box and shaftless screw conveyor 1 during operation. The top cover 503 is used to fix the first side plate 501 and the second side plate 501 together. Between the tops of the plates 502, the top of the closed support shell 5 forms a complete protective structure. The top cover 503 protects the heating chamber and conveyor from external dust, moisture, or other debris, while also enhancing the overall rigidity of the support shell 5 and reducing the risk of equipment failure due to changes in the external environment. The support feet 504 are set on the outside of the first side plate 501 and the second side plate 502, supporting the entire device and fixing it to the ground. The support feet 504 improve the grounding stability of the device, reduce the risk of vibration and tilting during operation, and ensure the safety and reliability of the equipment under high load or long-term operation. Through the synergistic effect of the above structures, the support shell 5, through the combined design of the first side plate 501, the second side plate 502, the top cover 503, and the support feet 504, provides stable support and protection for the tertiary heating chamber 2, the secondary heating chamber 3, the primary heating chamber 4, and the shaftless screw conveyor 1. Its effect is to enhance the overall stability of the device, reduce vibration and failure risks, protect internal components from external interference, and improve the safety and reliability of the equipment during long-term operation, providing reliable structural support for the efficient drying of ceramic diaphragm materials.

[0031] In this utility model, a conveyor 6 is provided between the first side plate 501 and the second side plate 502. The conveyor 6 is located directly below the discharge port 103, and the end of the conveyor 6 is placed outside the supporting shell 5.

[0032] In this embodiment, the first side plate 501 serves as part of the supporting shell 5, forming the installation space of the conveyor 6 together with the second side plate 502, and fixing the tertiary heating box 2, the secondary heating box 3, and the primary heating box 4. The first side plate 501 provides a stable support structure for the conveyor 6, ensuring the stability of the conveyor 6 during operation and preventing material conveying from being affected by vibration or displacement. The second side plate 502 is symmetrically arranged with the first side plate 501, forming the installation frame of the conveyor 6 together, and fixing the heating boxes. The second side plate 502 and the first side plate 501 work together to enhance the overall rigidity of the installation area of ​​the conveyor 6, reduce vibration during operation, and ensure a smooth transition of material from the discharge port 103 to the conveyor 6. The conveyor 6 is located between the first side plate 501 and the second side plate 502, directly below the discharge port 103, and is used to receive and convey the dried ceramic diaphragm material discharged from the shaftless screw conveyor 1. Its end is placed outside the supporting shell 5. The conveyor 6 realizes the automatic collection and conveying of the dried material, avoiding the transmission of material. The cumbersome manual collection operations in the equipment are eliminated, improving the automation level and efficiency of the production line. The end is placed outside the supporting shell 5, which facilitates the material transportation to the next production process and optimizes the production flow. The discharge port 103 is located below the body shell 101 of the shaftless screw conveyor 1, serving as the outlet for the dried material, directly discharging the material to the conveyor 6. The discharge port 103 corresponds to the position directly below the conveyor 6, ensuring that the material can fall smoothly into the conveyor 6, reducing scattering and waste, and improving the efficiency of material collection. Through the synergistic effect of the above structures, the first side plate 501 and the second side plate 502 provide a stable mounting frame for the conveyor 6. The conveyor 6 is located directly below the discharge port 103, realizing the automatic collection and transportation of the dried material discharged from the shaftless screw conveyor 1. Its effects are to improve the degree of production automation, reduce manual intervention, avoid material scattering, optimize the production flow, and, through the design of placing the end outside the supporting shell 5, facilitate seamless connection with subsequent processes, providing reliable support for the efficient processing of ceramic diaphragm materials after drying.

[0033] In this invention, the tilt angle of the shaftless screw conveyor 1 is in the range of 15°-30°.

[0034] In this embodiment, the shaftless screw conveyor 1 serves as the core conveying component of the device. Set at an inclination angle of 15°-30°, it conveys ceramic diaphragm material from the inlet 102 to the outlet 103. Simultaneously, it works with the heating chambers to achieve the drying process. The 15°-30° inclination angle utilizes gravity to assist in the downward conveying of the material, reducing the thrust required by the shaftless screw blades 108, lowering the power consumption of the motor 105, and improving conveying efficiency. Furthermore, the inclination facilitates the gradual passage of the material through the primary heating chamber 4, the secondary heating chamber 3, and the tertiary heating chamber 2 during conveying, achieving gradient heating and drying. Through this design, the 15°-30° inclination angle of the shaftless screw conveyor 1 optimizes the smoothness of material flow, reduces energy consumption, and supports gradient heating during the conveying of ceramic diaphragm material. Its effects include improved conveying and drying efficiency, reduced operating power consumption, enhanced stability during material processing, and efficient conveying support for the drying of ceramic diaphragm material.

[0035] In this invention, the surface of the shaftless helical blade 108 is coated with a polytetrafluoroethylene coating.

[0036] In this embodiment, the shaftless helical blade 108 is fixed inside the housing 101 and serves as the core conveying component of the shaftless helical conveyor 1. Driven by the rotating shaft 107, it propels the ceramic diaphragm material along an inclined direction. The shaftless design avoids the problem of material adhering to the central shaft in traditional shafted helical conveyors, ensuring the continuity and stability of material conveying. A polytetrafluoroethylene (PTFE) coating is applied to the surface of the shaftless helical blade 108, forming a low-friction, anti-adhesion protective layer. The PTFE coating has extremely low surface tension, significantly reducing the surface tension of the ceramic diaphragm material in wet conditions. The coating on the surface of the shaftless spiral blade 108 prevents material from adhering or clogging during the conveying process, thus preventing adhesion phenomena. Simultaneously, its corrosion resistance and high-temperature resistance extend the service life of the shaftless spiral blade 108 and reduce maintenance frequency. Through the above structural design, the polytetrafluoroethylene coating on the surface of the shaftless spiral blade 108 plays a role in preventing adhesion and clogging during the drying process of the ceramic diaphragm material. Its effects include improving the smoothness of conveying, reducing equipment cleaning requirements, extending component life, and ensuring the continuity and efficiency of the production process, providing important support for the overall performance of the drying device.

[0037] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A drying device for ceramic diaphragm materials, characterized in that, The shaftless screw conveyor (1) is set in an inclined state. The shaftless screw conveyor (1) includes a machine body shell (101), an inlet (102) is provided above the machine body shell (101), a discharge port (103) is provided below the machine body shell (101), and a discharge guide plate (104) is provided around the discharge port (103). Three-stage heating boxes (2), two-stage heating boxes (3) and one-stage heating boxes (4) are equidistantly fitted around the shaftless screw conveyor (1). The one-stage heating box (4) is closest to the feed inlet (102), the three-stage heating box (2) is farthest from the feed inlet (102), and the two-stage heating box (3) is located in the middle of the three-stage heating box (2) and the one-stage heating box (4). The three-stage heating box (2), the two-stage heating box (3) and the one-stage heating box (4) have the same structure. The three-stage heating box (2) includes a shell (201). A ceramic heating plate (202) is provided on the inner side of the shell (201). The ceramic heating plate (202) is fixed to the outer shell (101). An insulation plate (203) is provided on the outer side of the shell (201). Support shell (5) for fixing the three-stage heating box (2), the two-stage heating box (3) and the one-stage heating box (4).

2. A ceramic diaphragm material drying device according to claim 1, characterized in that, The shaftless screw conveyor (1) also includes a motor (105), which is connected to a reducer (106) for transmission. The reducer (106) is connected to a rotating shaft (107) for transmission. The rotating shaft (107) rotates through the outer shell (101) and is placed inside the outer shell (101). The outer shell (101) is fixed with shaftless screw blades (108), which are located inside the outer shell (101).

3. A ceramic diaphragm material drying device according to claim 1, characterized in that, The supporting shell (5) includes a first side plate (501) and a second side plate (502) arranged symmetrically. The first side plate (501) and the second side plate (502) are fixed to the two sides of the three-stage heating box (2), the two-stage heating box (3) and the first-stage heating box (4) respectively. A top cover (503) is fixed between the top of the first side plate (501) and the second side plate (502). It also includes support feet (504) disposed on the outside of the first side plate (501) and the second side plate (502).

4. A ceramic diaphragm material drying device according to claim 3, characterized in that, A conveyor (6) is provided between the first side plate (501) and the second side plate (502). The conveyor (6) is located directly below the discharge port (103), and the end of the conveyor (6) is placed outside the supporting shell (5).

5. A ceramic diaphragm material drying device according to claim 1, characterized in that, The tilt angle of the shaftless screw conveyor (1) ranges from 15° to 30°.

6. A ceramic diaphragm material drying device according to claim 1, characterized in that, The surface of the shaftless helical blade (108) is coated with polytetrafluoroethylene.

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