A discharge structure for a solid sodium methoxide spray dryer

Abstract

The present invention relates to the field of chemical raw material drying equipment, and specifically to a discharging structure for a solid sodium methoxide spray dryer. The structure comprises a rotating tube that passes through a drying tower from top to bottom and is rotatably connected thereto. A fixed shaft is rotatably provided on the inner side of the rotating tube with a lower end fixedly connected to the spray dryer. The discharging structure further comprises a scraping unit for quickly discharging material by scraping material adhered to the lower conical surface of the drying tower, and a material guiding unit for sharing the discharging pressure of the lower conical surface of the drying tower. The present invention peels off adhered solid sodium methoxide by continuously contacting the lower conical surface of the drying tower with the outer side surface of the scraper, and simultaneously, the spiral structure design enables the scrapers in the same group to form a step-by-step advancement, thereby directionally guiding the material to the discharge port, avoiding accumulation dead corners that cannot be scraped, and not affecting the airflow in the main tower, thereby avoiding product loss and filtering burden.

Description

Technical Field

[0001] The invention relates to the field of chemical raw material drying equipment, in particular to a discharging structure for a solid sodium methoxide spray dryer. Background Art

[0002] Solid sodium methoxide, a strongly alkaline chemical raw material, is widely used in pharmaceutical synthesis, catalysts and other fields. During its production process, the sodium methoxide solution must be dehydrated and converted into a solid powder using a centrifugal spray dryer. This process uses a high-speed centrifugal atomizer to spray the solution into a high-temperature drying tower. The droplets are instantly heated to evaporate the solvent, forming dry particles. However, due to the strong corrosiveness, hygroscopicity and heat sensitivity of solid sodium methoxide, the dried powder easily adheres to the inner wall of the equipment, especially in the discharge process, which is prone to agglomeration and blockage, directly affecting production continuity and product purity.

[0003] Currently, the lower part of the tower of a centrifugal spray dryer generally adopts a conical structure, which aims to use gravity to make the dried material gather toward the center along the cone surface and finally be discharged through the bottom discharge port. This design relies on the self-flow characteristics of the material to achieve discharge, but in actual operation, the cone surface area is both a channel for material collection and a high-incidence area for adhesion and accumulation.

[0004] Due to electrostatic adsorption and surface melting characteristics, solid sodium methoxide powder easily adheres to the lower conical surface of the tower body, forming a stubborn accumulation layer. This not only hinders the subsequent material flow and reduces the discharge efficiency, but also causes the residual material to decompose under long-term heat, affecting product quality. In order to alleviate adhesion, some equipment uses a rotating jet tube to spray air onto the conical surface, accelerating the discharge of solid sodium methoxide powder by air sweeping. However, the jet airflow will destroy the uniform negative pressure distribution in the tower, interfere with the falling trajectory of the atomized droplets, and the fine powder raised by the air sweeping can easily be carried to the exhaust system by the main airflow, resulting in product loss and filtration burden. Summary of the Invention

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: a discharging structure for a solid sodium methoxide spray dryer, comprising a rotating tube that passes through a drying tower from top to bottom and is rotatably connected thereto, a fixed shaft having a lower end fixedly connected to the spray dryer is rotatably provided on the inner side of the rotating tube, the discharging structure also comprising a scraping unit for quickly discharging material by scraping material adhered to the lower conical surface of the drying tower, and a material guiding unit for sharing the discharging pressure of the lower conical surface of the drying tower.

[0006] The scraper unit includes several groups of scrapers arranged on the upper part of the rotating tube through a connecting assembly. The multiple groups of scrapers are arranged at equal intervals along the circumference of the rotating tube. Each group consists of several scrapers arranged at equal intervals up and down, and the outer side of the scraper is in contact with the conical surface at the lower part of the drying tower.

[0007] The material guiding unit includes a plurality of material receiving plates arranged on a fixed shaft through a carrying component. The material receiving plates are in a fan-shaped structure, and the upper side of the material receiving plates is in a conical structure. The plurality of material receiving plates are arranged at equal intervals along the circumference of the fixed shaft. The material guiding unit also includes a shaking component that drives the material receiving plates to shake and drop materials when the rotating tube rotates.

[0008] Preferably, the scraper has a spiral structure with one end in the same direction as its rotation direction being higher and the other end in the opposite direction of its rotation being lower, and the lower end of the scraper in the same group is located below the higher end of the scraper below it.

[0009] Preferably, the connecting assembly includes a linkage cylinder fixedly mounted on the upper end of the rotating tube, and a plurality of sliding rods are provided on the linkage cylinder for radial sliding, and the sliding rods are fixedly connected to the scrapers at corresponding positions.

[0010] Preferably, a tension spring is provided between one end of the sliding rod located inside the linkage cylinder and the inner wall of the linkage cylinder, and a linkage column is fixedly installed on the upper side of the one end of the sliding rod located inside the linkage cylinder.

[0011] Preferably, the portion of the fixed shaft located inside the linkage cylinder is provided with a plurality of push plates at equal intervals along the vertical direction, and the inner side surfaces of the push plates are gradually inclined toward the direction close to the axis of the linkage cylinder along the rotation direction of the linkage cylinder.

[0012] Preferably, each group of the push plates is composed of a plurality of push plates arranged along the circumference of the fixed shaft, and the push plates of two adjacent groups are staggered with each other along the circumference of the fixed shaft.

[0013] Preferably, the bearing assembly includes a ring plate rotatably connected to the outside of the fixed shaft through a three-claw frame, the outer side of the ring plate is attached to the inner wall of the drying tower, and the inner side of the ring plate is hinged to the receiving plate.

[0014] Preferably, the shaking assembly includes a torsion spring arranged between the fixed shaft and the three-claw frame, a conical cover is fixedly installed on the upper middle side of the three-claw frame, a plurality of moving rods sliding radially are arranged at equal intervals along the circumference of the conical cover on the lower side, and fixed blocks for pushing the moving rods are fixedly installed at equal intervals along the circumference of the linkage cylinder on the upper side.

[0015] Preferably, the fixed shaft is located on the side wall inside the conical cover and is fixedly mounted with a fixed disk, the fixed disk is provided with inclined grooves corresponding to the moving rods one by one, and the upper ends of the moving rods are slidably connected to the corresponding inclined grooves.

[0016] Preferably, the upper end of the fixed shaft is a cone structure matching the conical cover, a spring telescopic rod is hinged between the receiving plate and the ring plate, and a pull rope is fixedly connected between the cone structure of the fixed shaft and the upper side of each receiving plate.

[0017] The beneficial effects of the present invention are as follows: 1. The present invention peels off the adhered solid sodium methoxide by continuously adhering to the conical surface of the lower part of the drying tower through the outer side surface of the scraper, and at the same time, the spiral structure design enables the scrapers in the same group to form a step-by-step advancement, and directionally guides the material to the discharge port, avoiding the accumulation dead corners that cannot be scraped. The sliding rod of the connecting component cooperates with the tension spring to ensure that the scraper always presses the conical surface tightly, adapts to the wear or deformation of the conical surface, ensures the scraping efficiency, and does not affect the airflow in the main tower, avoiding product loss and filtration burden.

[0018] 2. The present invention adopts a receiving plate that is attached to the inner wall of the drying tower through the ring plate of the bearing assembly. The conical upper side of the receiving plate directly receives the falling material, sharing the solid sodium methoxide that originally falls directly on the conical surface of the lower part of the tower body, thereby reducing the pushing of the material on the conical surface of the tower body. Through the periodic contact between the moving rod and the fixed block in the shaking assembly, the receiving plate is driven to rotate back and forth intermittently, thereby increasing the sliding rate of the material on the receiving plate and reducing the risk of the material adhering to the receiving plate.

[0019] 3. The present invention uses a linkage column to periodically contact the inclined surface of the push plate, forcing the sliding rod to contract radially. After the contact is broken, the tension spring instantly causes the scraper to hit the conical surface of the lower part of the tower body. Through this intermittent knocking method, the conical surface structure of the tower body is slightly vibrated, thereby increasing the falling rate of the solid sodium methoxide adhering to the conical surface of the lower part of the tower body.

[0020] Fourth, the present invention adopts the linkage between the pull rope and the receiving plate to give the receiving plate the ability to dynamically adjust the inclination angle. When the receiving plate is pushed and rotated by the fixed block, the pull rope pulls the upper part of the receiving plate, causing the lower part of the receiving plate to deflect downward, increasing the inclination of the receiving plate, and further preventing the receiving plate from adhering to the material. At the same time, the spring telescopic rod stores energy, so that the spring telescopic rod can quickly drive the receiving plate to reset, causing the solid sodium methoxide on the receiving plate to vibrate, further increasing the falling rate of the solid sodium methoxide. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below with reference to the accompanying drawings and examples.

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention when it is arranged inside a drying tower.

[0023] Figure 2 It is a structural schematic diagram of the rotating tube and the fixed shaft in the present invention.

[0024] Figure 3 It is a partial structural diagram of the rotating tube, fixed shaft, material receiving plate and scraper in the present invention.

[0025] Figure 4 It is a partial cross-sectional view of the rotating tube, linkage cylinder, sliding rod and scraper in the present invention.

[0026] Figure 5 It is a partial structural diagram of the linkage cylinder, three-claw frame, material receiving plate and conical cover in the present invention.

[0027] Figure 6 It is a partial cross-sectional view of the linkage cylinder, movable rod, fixed block and fixed disk in the present invention.

[0028] In the figure: 1. Rotating tube; 2. Fixed shaft; 3. Scraper unit; 4. Material guide unit; 31. Connecting assembly; 32. Scraper; 33. Linkage column; 41. Carrying assembly; 42. Receiving plate; 43. Shaking assembly; 311. Linkage cylinder; 312. Sliding rod; 331. Push plate; 411. Three-claw frame; 412. Ring plate; 431. Conical cover; 432. Moving rod; 433. Fixed block; 434. Fixed plate; 435. Inclined slot; 436. Spring telescopic rod; 437. Pull rope. DETAILED DESCRIPTION

[0029] The following embodiments of the present invention are described in detail. The embodiments described below are exemplary and are only used to explain the present invention, and are not to be construed as limiting the present invention. Where specific techniques or conditions are not specified in the embodiments, the techniques or conditions described in the literature in the art or in the product specifications shall be followed.

[0030] See Figure 1 and Figure 2 A discharging structure for a solid sodium methoxide spray dryer includes a rotating tube 1 that passes through a drying tower from top to bottom and is rotatably connected thereto. A fixed shaft 2 is rotatably provided inside the rotating tube 1 at its lower end and is fixedly connected to the spray dryer. The discharging structure also includes a scraping unit 3 for quickly discharging material by scraping the material adhered to the lower conical surface of the drying tower, and a material guiding unit 4 for sharing the discharging pressure of the lower conical surface of the drying tower.

[0031] When the solid sodium methoxide needs to be discharged, the dried solid sodium methoxide falls to the conical surface at the lower part of the drying tower in the drying tower. At the same time, the material guide unit 4 shares the amount of material received on the conical surface at the lower part of the drying tower, thereby preventing the solid sodium methoxide from accumulating on the conical surface at the lower part of the drying tower. The scraping unit 3 is driven by the continuous rotation of the rotating tube 1 to continuously scrape and convey the solid sodium methoxide on the conical surface at the lower part of the drying tower, thereby improving the discharge efficiency of the solid sodium methoxide. At the same time, the material guide unit 4 can also prevent the solid sodium methoxide from adhering and accumulating on the material guide unit 4 by self-dynamic adjustment.

[0032] See Figure 1 、 Figure 3 and Figure 5The material guiding unit 4 includes a plurality of material receiving plates 42 arranged on the fixed shaft 2 through a carrying component 41. The material receiving plates 42 are fan-shaped, and the upper side of the material receiving plates 42 is a conical structure. The plurality of material receiving plates 42 are arranged at equal intervals along the circumference of the fixed shaft 2. The material guiding unit 4 also includes a shaking component 43 that drives the material receiving plates 42 to shake the blanks when the rotating tube 1 rotates.

[0033] Continue reading Figure 1 、 Figure 3 and Figure 5 The bearing assembly 41 includes a ring plate 412 rotatably connected to the outside of the fixed shaft 2 through a three-claw frame 411. The outer side of the ring plate 412 is attached to the inner wall of the drying tower. The inner side of the ring plate 412 is hinged to the receiving plate 42. A spring telescopic rod 436 is hinged between the receiving plate 42 and the ring plate 412.

[0034] In the initial state, the telescopic section of the spring telescopic rod 436 is in a fully extended state, so that the spring telescopic rod 436 pushes the lower part of the receiving plate 42 toward the direction close to the axis of the fixed shaft 2, so that the receiving plate 42 shields the conical surface of the lower part of the drying tower to a certain extent through its upper side surface, thereby causing a portion of the dried solid sodium methoxide to fall onto the upper side surface of the receiving plate 42, and the solid sodium methoxide slides downward along the upper side surface of the receiving plate 42 under the action of gravity. When the solid sodium methoxide slides out of the upper side surface of the receiving plate 42, the solid sodium methoxide can fall vertically to the bottom of the drying tower under the action of gravity and discharge the material, thereby reducing the degree of material accumulation on the conical surface of the lower part of the drying tower.

[0035] See Figure 1 、 Figure 3 and Figure 4 The scraper unit 3 includes several groups of scrapers 32 arranged on the upper part of the rotating tube 1 through a connecting component 31. The multiple groups of scrapers 32 are arranged at equal intervals along the circumference of the rotating tube 1. Each group is composed of several scrapers 32 arranged at equal intervals up and down. The outer side of the scraper 32 is attached to the conical surface of the lower part of the drying tower. The scraper 32 has a spiral structure with one end in the same direction as its rotation direction higher and the other end in the opposite direction of its rotation direction lower. The lower end of the scraper 32 in the same group is located below the high end of the scraper 32 below it.

[0036] Continue reading Figure 1 、 Figure 3 and Figure 4 The connecting assembly 31 includes a linkage cylinder 311 fixedly mounted on the upper end of the rotating tube 1, and a plurality of sliding rods 312 are provided on the linkage cylinder 311 along its radial sliding direction. The sliding rods 312 are fixedly connected to the scrapers 32 at corresponding positions. A tension spring is provided between one end of the sliding rod 312 located inside the linkage cylinder 311 and the inner wall of the linkage cylinder 311. A linkage column 33 is fixedly mounted on the upper side of one end of the sliding rod 312 located inside the linkage cylinder 311.

[0037] It should be noted that an asynchronous motor is fixedly installed on the spray dryer, and the output shaft of the asynchronous motor is connected to the rotating tube 1 through a belt.

[0038] In the initial state, the tension spring pushes the sliding rod 312 in the direction away from the axis of the linkage cylinder 311 through its own elastic force, so that the sliding rod 312 drives the outer side surface of the scraper 32 thereon to fit against the conical surface of the lower part of the drying tower, thereby facilitating the scraper 32 to scrape and transport the solid sodium methoxide adhered to the conical surface of the lower part of the drying tower.

[0039] When the sodium methoxide begins to be dried, the asynchronous motor is started to drive the rotating tube 1 to rotate, so that the rotating tube 1 drives the scraper 32 to rotate through the linkage cylinder 311 and the sliding rod 312, so that the scraper 32 scrapes the solid sodium methoxide adhered to the lower conical surface of the drying tower. The scrapers 32 arranged up and down in the same group and with overlapping scraping areas can also form a step-by-step propulsion of the solid sodium methoxide, and the solid sodium methoxide is directed to the discharge port to avoid accumulation dead corners that cannot be scraped.

[0040] See Figure 3 and Figure 4 The part of the fixed shaft 2 located inside the linkage cylinder 311 is provided with several groups of push plates 331 at equal intervals along the vertical direction. The inner side surfaces of the push plates 331 gradually tilt toward the direction close to the axis of the linkage cylinder 311 along the rotation direction of the linkage cylinder 311. Each group of push plates 331 is composed of several push plates 331 arranged along the circumference of the fixed shaft 2, and the two adjacent groups of push plates 331 are staggered with each other along the circumference of the fixed shaft 2.

[0041] When the linkage cylinder 311 drives the linkage column 33 on the sliding rod 312 to rotate until it rests against the inner side surface of the corresponding push plate 331, the linkage column 33 moves along the inner side surface of the push plate 331, so that the push plate 331 drives the sliding rod 312 to move toward the direction close to the axis of the linkage cylinder 311 by pushing the linkage column 33, and the sliding rod 312 drives the scraper 32 thereon to move until it is no longer in contact with the conical surface of the lower part of the drying tower, while stretching the tension spring.

[0042] When the linkage column 33 moves to a position where it is no longer in contact with the push plate 331 at the corresponding position, the tension spring pulls the sliding rod 312 to quickly reset through its own elastic force, so that the sliding rod 312 drives the scraper 32 to knock on the conical surface at the bottom of the drying tower, thereby micro-vibrating the conical surface structure of the tower body through intermittent knocking, thereby increasing the falling rate of the solid sodium methoxide adhering to the conical surface at the bottom of the tower body, and because the two adjacent groups of push plates 331 are staggered with each other along the circumference of the fixed axis 2, the scrapers 32 in different groups knock on the conical surface structure of the tower body at different angles and positions, thereby being able to perform full-coverage knocking vibration on the conical surface structure of the tower body, thereby ensuring the effect of shaking off the solid sodium methoxide.

[0043] See Figure 1 、 Figure 3 、 Figure 5 and Figure 6 The shaking assembly 43 includes a torsion spring arranged between the fixed shaft 2 and the three-claw frame 411. The torsion spring is not shown in the figure. A conical cover 431 is fixedly installed on the upper side of the middle part of the three-claw frame 411. A plurality of moving rods 432 that slide radially are arranged at equal intervals along the circumference of the conical cover 431 on the lower side. Fixed blocks 433 for pushing the moving rods 432 are fixedly installed at equal intervals along the circumference of the upper side of the linkage cylinder 311.

[0044] See Figure 5 and Figure 6 The fixed shaft 2 is located on the side wall inside the conical cover 431 and is fixedly installed with a fixed plate 434. The fixed plate 434 is provided with an inclined groove 435 corresponding to the moving rod 432 one by one. The upper end of the moving rod 432 is slidably connected to the corresponding inclined groove 435.

[0045] It should be noted that the inclined groove 435 is in a structure that is gradually inclined outward along the rotation direction of the fixed shaft 2 .

[0046] In the initial state, the torsion spring pushes the three-claw frame 411 through its own elastic force, so that the three-claw frame 411 drives the moving rod 432 to be located at one end of the inclined groove 435 close to the axis of the fixed shaft 2 through the conical cover 431, and makes the moving rod 432 and the fixed block 433 in the same circular trajectory, which enables the rotating linkage cylinder 311 to push the moving rod 432 through the fixed block 433.

[0047] When the rotating linkage cylinder 311 drives the fixed block 433 on it to move against the outer surface of the moving rod 432, the fixed block 433 drives the conical cover 431 to rotate synchronously by pushing the moving rod 432, and the conical cover 431 drives the receiving plate 42 to rotate synchronously through the three-claw frame 411 and the ring plate 412. While rotating, the moving rod 432 moves along the trajectory of the inclined groove 435 in the direction away from the axis of the fixed shaft 2, and at the same time accumulates force in the torsion spring.

[0048] When the moving rod 432 moves outward to the outside of the fixed block 433, the fixed block 433 no longer blocks the moving rod 432, so that the torsion spring pushes the three-claw frame 411 and the receiving plate 42 to quickly rotate and reset through its own elastic force. During this process, the receiving plate 42 shakes the solid sodium methoxide on its upper side to prevent the solid sodium methoxide from adhering to the receiving plate 42, thereby increasing the sliding rate of the material on the receiving plate 42.

[0049] See Figure 3 、 Figure 5 and Figure 6 The upper end of the fixed shaft 2 is a cone structure that matches the cone cover 431 , and a pull rope 437 is fixedly connected between the cone structure of the fixed shaft 2 and the upper side of each receiving plate 42 .

[0050] When the fixed block 433 pushes the receiving plate 42 to rotate, the receiving plate 42 drives the pull rope 437 to gradually wrap around the upper end of the fixed shaft 2, so that the pull rope 437 pulls the upper side of the receiving plate 42, thereby causing the lower part of the receiving plate 42 to deflect downward, increasing the inclination of the receiving plate 42, further preventing the receiving plate 42 from adhering to the material, and at the same time, the receiving plate 42 compresses the spring telescopic rod 436 to store energy.

[0051] When the torsion spring drives the receiving plate 42 to rotate and reset quickly, the pull rope 437 no longer pulls the upper side of the receiving plate 42, so that the spring telescopic rod 436 can quickly drive the receiving plate 42 to reset through its own elastic force, thereby causing the solid sodium methoxide on the receiving plate 42 to vibrate in the up and down directions, and further increasing the falling rate of the solid sodium methoxide by combining rotational shaking with up and down shaking.

[0052] See Figures 1 to 6 When discharging the solid sodium methoxide after drying, the present invention also includes the following steps: First, the conical surface of the lower part of the drying tower is shielded to a certain extent by the receiving plate 42, so that a portion of the solid sodium methoxide after drying falls to the upper side of the receiving plate 42, and falls directly to the bottom of the drying tower along the receiving plate 42 and is discharged.

[0053] In the second step, the asynchronous motor is started to drive the rotating tube 1 to rotate, so that the scraper 32 scrapes the solid sodium methoxide adhered to the conical surface of the lower part of the drying tower, and forms a step-by-step propulsion of the solid sodium methoxide, and the solid sodium methoxide is directed to the discharge port to avoid dead corners of accumulation that cannot be scraped.

[0054] In the third step, the linkage cylinder 311 drives the linkage column 33 to rotate until it rests against the inner side surface of the corresponding push plate 331, so that the push plate 331 drives the scraper 32 thereon to move and stretch the tension spring, and then the tension spring drives the scraper 32 to knock on the lower conical surface of the drying tower, and the conical surface structure of the tower body is micro-vibrated by intermittent knocking, thereby increasing the falling rate of the solid sodium methoxide adhering to the conical surface of the lower part of the tower body.

[0055] In the fourth step, the linkage cylinder 311 drives the fixed block 433 to push the conical cover 431 to rotate synchronously, so that the material receiving plate 42 rotates synchronously and stores force on the torsion spring. At the same time, the pull rope 437 pulls the upper side of the material receiving plate 42, so that the lower part of the material receiving plate 42 deflects downward, increasing the inclination of the material receiving plate 42, further preventing the material receiving plate 42 from adhering to the material, and at the same time, the material receiving plate 42 compresses the spring telescopic rod 436 to store energy.

[0056] In the fifth step, the torsion spring drives the receiving plate 42 to rotate and reset quickly, so that the receiving plate 42 shakes the solid sodium methoxide on its upper side to prevent the solid sodium methoxide from adhering to the receiving plate 42. The spring telescopic rod 436 quickly drives the receiving plate 42 to reset, thereby causing the solid sodium methoxide on the receiving plate 42 to vibrate in the up and down directions. The falling rate of the solid sodium methoxide is further increased by combining rotation and shaking with up and down shaking.

[0057] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention, which are still covered by the scope of protection of the present invention.

Claims

1. A discharge structure for a solid sodium methoxide spray dryer, comprising a rotating tube that passes through a drying tower and is rotatably connected thereto, characterized in that: A fixed shaft is provided on the inner side of the rotating tube, the lower end of which is fixedly connected to the spray dryer. The discharging structure also includes a scraping unit for quickly discharging the material adhering to the lower conical surface of the drying tower by scraping, and a material guiding unit for sharing the discharging pressure of the lower conical surface of the drying tower. The scraper unit includes a plurality of scraper groups arranged on the upper part of the rotating tube through a connecting assembly. The plurality of scraper groups are arranged at equal intervals along the circumference of the rotating tube. Each group is composed of a plurality of scraper groups arranged at equal intervals up and down. The outer side surfaces of the scraper groups are attached to the conical surface at the lower part of the drying tower. The material guide unit includes a plurality of receiving plates arranged on a fixed shaft through a bearing assembly. The receiving plates are fan-shaped and the upper side surfaces of the receiving plates are conical. The receiving plates are arranged at equal intervals along the circumference of the fixed shaft. The material guide unit also includes a shaking assembly that drives the receiving plates to shake and drop materials when the rotating tube rotates. The connecting assembly includes a linkage cylinder fixedly mounted on the upper end of the rotating tube, and a plurality of sliding rods are provided on the linkage cylinder for sliding along its radial direction, and the sliding rods are fixedly connected to the scrapers at corresponding positions; The bearing assembly includes a ring plate rotatably connected to the outside of the fixed shaft through a three-claw frame, the outer side of the ring plate is attached to the inner wall of the drying tower, and the inner side of the ring plate is hinged to the receiving plate; The shaking assembly includes a torsion spring arranged between a fixed shaft and a three-claw frame, a conical cover is fixedly mounted on the upper side of the middle portion of the three-claw frame, a plurality of movable rods sliding along the radial direction are arranged at equal intervals along the circumference of the conical cover on the lower side, and fixed blocks for pushing the movable rods are fixedly mounted at equal intervals along the circumference of the linkage cylinder on the upper side; The fixed shaft is located on the side wall of the conical cover and is fixedly mounted with a fixed plate. The fixed plate is provided with inclined grooves corresponding to the moving rods one by one. The upper ends of the moving rods are slidably connected to the corresponding inclined grooves. The upper end of the fixed shaft is a cone structure that matches the cone cover. A spring telescopic rod is hinged between the receiving plate and the ring plate. A pull rope is fixedly connected between the cone structure of the fixed shaft and the upper side of each receiving plate.

2. A discharging structure for a solid sodium methoxide spray dryer according to claim 1, characterized in that, The scraper has a spiral structure with one end in the same direction as its rotation direction being higher and the other end in the opposite direction of its rotation direction being lower. The lower end of the scraper in the same group is located below the higher end of the scraper below it.

3. A discharging structure for a solid sodium methoxide spray dryer according to claim 1, characterized in that, A tension spring is provided between one end of the sliding rod located inside the linkage cylinder and the inner wall of the linkage cylinder, and a linkage column is fixedly installed on the upper side of the one end of the sliding rod located inside the linkage cylinder.

4. A discharging structure for a solid sodium methoxide spray dryer according to claim 3, characterized in that, The portion of the fixed shaft located inside the linkage cylinder is provided with a plurality of push plates at equal intervals along the vertical direction, and the inner side surfaces of the push plates are gradually inclined toward the direction close to the axis of the linkage cylinder along the rotation direction of the linkage cylinder.

5. A discharging structure for a solid sodium methoxide spray dryer according to claim 4, characterized in that, Each group of push plates is composed of a plurality of push plates arranged along the circumference of the fixed shaft, and the push plates of two adjacent groups are staggered with each other along the circumference of the fixed shaft.

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