Discharging structure for solid sodium methoxide spray dryer

Abstract

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, which comprises a rotating pipe which vertically penetrates through a drying tower and is rotatably connected with the drying tower, and a fixed shaft of which the lower end is fixedly connected with the spray dryer is rotatably arranged on the inner side of the rotating pipe; the discharging structure further comprises a material scraping unit and a material guiding unit, the material scraping unit is used for rapidly discharging materials in a mode of scraping and sweeping the materials attached to the conical surface of the lower portion of the drying tower, and the material guiding unit is used for sharing the discharging pressure of the conical surface of the lower portion of the drying tower. Meanwhile, due to the design of the spiral structure, the same group of scrapers form stepped propulsion, materials are directionally guided to a discharge port, accumulation dead angles which cannot be scraped are avoided, air flow in the main tower is not influenced, and product loss and filtering burden are avoided.

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, as a strong alkaline chemical raw material, is widely used in pharmaceutical synthesis, catalysts and other fields. During its production process, the sodium methoxide solution needs to be dehydrated and converted into solid powder through 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 heated instantly to evaporate the solvent to form dry particles. However, since solid sodium methoxide is highly corrosive, hygroscopic and heat-sensitive, the dried powder is easy to adhere to the inner wall of the equipment, especially in the discharging process, it is easy to agglomerate and clog, which directly affects production continuity and product purity.

[0003] Currently, the lower part of the tower of the 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] Solid sodium methoxide powder is easy to adhere to the lower conical surface of the tower due to electrostatic adsorption and surface melting characteristics, forming a stubborn accumulation layer, which 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 the product quality. In order to alleviate the adhesion, some equipment uses a rotating jet tube to spray air to the conical surface, and accelerates 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 is easily carried to the exhaust system by the main airflow, causing 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 arranged inside the rotating tube, the discharging structure also comprising a scraping unit for quickly discharging materials by scraping materials 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 is composed of several scrapers arranged at equal intervals up and down, and the outer side of the scraper is attached to the conical surface of 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 bearing component. The material receiving plates are in a fan-shaped structure, and the upper side surface of the material receiving plate is in a conical structure. The plurality of material receiving plates are arranged at equal intervals along the circumferential direction of the fixed shaft. The material guiding unit further includes a shaking component that drives the material receiving plates to shake and discharge materials when the rotating pipe rotates.

[0008] Preferably, the scraping plate is in a spiral structure with one end higher in the same direction as its rotation direction and the other end lower in the opposite direction of its rotation direction. The lower ends of the scraping plates in the same group are located below the upper ends of the lower scraping plates.

[0009] Preferably, the connecting component includes a linkage cylinder fixedly installed at the upper end of the rotating pipe. A plurality of sliding rods are slidably arranged on the linkage cylinder along its radial direction, and the sliding rods are fixedly connected to the corresponding scraping plates.

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

[0011] Preferably, a plurality of groups of pushing plates are arranged at equal intervals in the vertical direction on the part of the fixed shaft located inside the linkage cylinder. The inner side surface of the pushing plate gradually inclines towards the direction close to the axis of the linkage cylinder along the rotation direction of the linkage cylinder.

[0012] Preferably, each group of the pushing plates is composed of a plurality of pushing plates arranged along the circumferential direction of the fixed shaft, and adjacent two groups of pushing plates are arranged in a staggered manner along the circumferential direction of the fixed shaft.

[0013] Preferably, the bearing component includes an annular plate rotatably connected to the outside of the fixed shaft through a three-jaw bracket. The outer side surface of the annular plate is attached to the inner wall of the drying tower, and the inner side surface of the annular plate is hinged to the material receiving plate.

[0014] Preferably, the shaking component includes a torsion spring arranged between the fixed shaft and the three-jaw bracket. A conical cover is fixedly installed on the upper side of the middle part of the three-jaw bracket. A plurality of moving rods sliding along its radial direction are arranged at equal intervals along the circumferential direction on the lower side of the conical cover. Fixed blocks for pushing the moving rods are fixedly installed at equal intervals along the circumferential direction on the upper side of the linkage cylinder.

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

[0016] Preferably, the upper end of the fixed shaft is in a conical structure matching the conical cover. A spring telescopic rod is hinged between the material receiving plate and the annular plate. A pull rope is fixedly connected between the conical structure of the fixed shaft and the upper sides of the respective material receiving plates.

[0017] The beneficial effects of the present invention are as follows: 1. The present invention peels off the adhered solid sodium methoxide by continuously contacting the outer side of the scraper with the conical surface of the lower part of the drying tower for rotation and scraping. At the same time, the spiral structure design enables the scrapers in the same group to form a step-by-step advancement, and guides the material to the discharge port in a direction to avoid accumulation dead corners that cannot be scraped. The sliding rod of the connecting component cooperates with the tension spring to make the scraper always press against the conical surface, adapt to the wear or deformation of the conical surface, ensure the scraping efficiency, and will not affect the airflow in the main tower, avoiding product loss and filtering burden.

[0018] 2. The present invention adopts a receiving plate which is attached to the inner wall of the drying tower through the ring plate of the bearing assembly. The conical upper side surface of the receiving plate directly receives the falling materials, and shares 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 materials 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 intermittently reciprocate, thereby increasing the sliding rate of the materials on the receiving plate and reducing the risk of the materials adhering to the receiving plate.

[0019] 3. The present invention adopts a linkage column to periodically contact the inclined surface of the push plate, forcing the sliding rod to radially contract. 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. The conical surface structure of the tower body is slightly vibrated by this intermittent knocking method, 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 dynamic inclination adjustment capability. 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, thereby 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, thereby further increasing the falling rate of the solid sodium methoxide. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[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 schematic diagram of the rotating tube, the fixed shaft, the material receiving plate and the scraper in the present invention.

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

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

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

[0028] In the figure: 1, rotating pipe; 2, fixed shaft; 3, scraping unit; 4, guiding unit; 31, connecting component; 32, scraping plate; 33, linkage column; 41, bearing component; 42, material receiving plate; 43, jitter component; 311, linkage cylinder; 312, sliding rod; 331, pushing plate; 411, three-jaw support; 412, ring plate; 431, conical cover; 432, moving rod; 433, fixed block; 434, fixed disk; 435, inclined groove; 436, spring telescopic rod; 437, pull rope. Detailed implementation manners

[0029] The embodiments of the present invention will be described in detail below. The described embodiments are exemplary and are only used to explain the present invention, and should not be construed as a limitation to the present invention. For those not specified in the embodiments regarding specific technologies or conditions, they shall be carried out according to the technologies or conditions described in the literature in the field or according to the product specifications.

[0030] Refer to Figure 1 and Figure 2 , a discharging structure for a solid sodium methoxide spray dryer, comprising a rotating pipe 1 that penetrates through the drying tower vertically and is rotatably connected thereto, a fixed shaft 2 rotatably arranged inside the rotating pipe 1 and fixedly connected to the spray dryer at the lower end. The discharging structure further includes a scraping unit 3 for quickly discharging the material adhered to the lower conical surface of the drying tower by scraping, and a guiding unit 4 for sharing the discharging pressure of the lower conical surface of the drying tower.

[0031] When discharging solid sodium methoxide is required, the dried solid sodium methoxide falls in the drying tower to the lower conical surface of the drying tower. At the same time, the guiding unit 4 shares the number of materials received on the lower conical surface of the drying tower to prevent the solid sodium methoxide from accumulating on the lower conical surface of the drying tower. And by continuously rotating the rotating pipe 1, the scraping unit 3 is driven to continuously scrape and convey the solid sodium methoxide on the lower conical surface of the drying tower downward, improving the discharging efficiency of the solid sodium methoxide. At the same time, the guiding unit 4 can also prevent the solid sodium methoxide from adhering and accumulating on the guiding unit 4 through self-dynamic adjustment.

[0032] Refer to Figure 1 , Figure 3 and Figure 5, the material guiding unit 4 includes a plurality of material receiving plates 42 arranged on the fixed shaft 2 through a bearing assembly 41. The material receiving plates 42 are in a fan-shaped structure, and the upper side surface of the material receiving plate 42 is in a conical structure. The plurality of material receiving plates 42 are arranged at equal intervals along the circumferential direction of the fixed shaft 2. The material guiding unit 4 further includes a shaking assembly 43 that drives the material receiving plates 42 to shake and discharge materials when the rotating pipe 1 rotates.

[0033] Continue to refer to Figure 1 , Figure 3 and Figure 5 , the bearing assembly 41 includes an annular plate 412 rotatably connected to the outside of the fixed shaft 2 through a three-jaw bracket 411. The outer side surface of the annular plate 412 is attached to the inner wall of the drying tower. The inner side surface of the annular plate 412 is hinged to the material receiving plate 42, and a spring telescopic rod 436 is hinged between the material receiving plate 42 and the annular 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 material receiving plate 42 to approach the axis of the fixed shaft 2, so that the material receiving plate 42 shields the conical surface at the lower part of the drying tower to a certain extent through its upper side surface. Furthermore, a part of the dried solid sodium methoxide falls onto the upper side surface of the material receiving plate 42, and the solid sodium methoxide slides downward along the upper side surface of the material receiving plate 42 under the action of gravity. When the solid sodium methoxide slides out of the upper side surface of the material receiving plate 42, the solid sodium methoxide can vertically fall to the bottom of the drying tower and be discharged under the action of gravity, thereby reducing the degree of accumulated materials on the conical surface at the lower part of the drying tower.

[0035] Refer to Figure 1 , Figure 3 and Figure 4 , the scraping unit 3 includes a plurality of groups of scraping plates 32 arranged on the upper part of the rotating pipe 1 through a connecting component 31. The multiple groups of scraping plates 32 are arranged at equal intervals along the circumferential direction of the rotating pipe 1. Each group consists of a plurality of scraping plates 32 arranged at equal intervals up and down. The outer side surface of the scraping plate 32 is attached to the conical surface at the lower part of the drying tower. The scraping plate 32 is in a spiral structure with one end higher in the same direction as its rotation direction and the other end lower in the opposite direction of its rotation direction. The low ends of the scraping plates 32 in the same group are located below the high ends of the lower scraping plates 32.

[0036] Continue to refer to Figure 1 , Figure 3 and Figure 4 , the connecting component 31 includes a linkage cylinder 311 fixedly installed at the upper end of the rotating pipe 1. A plurality of sliding rods 312 are slidably arranged on the linkage cylinder 311 along its radial direction. The sliding rods 312 are fixedly connected to the corresponding scraping plates 32. A tension spring is arranged between the 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 installed on the upper side of the 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 pipe 1 through a belt.

[0038] In the initial state, the tension spring pushes the sliding rod 312 away from the axis of the linkage cylinder 311 through its own elastic force, so that the sliding rod 312 drives the outer side of the scraper 32 on it to fit on the conical surface at the lower part of the drying tower, thus facilitating the scraping and conveying of the solid sodium methoxide adhered to the conical surface at the lower part of the drying tower by the scraper 32.

[0039] When starting to dry sodium methoxide, the asynchronous motor is started to drive the rotating pipe 1 to rotate, so that the rotating pipe 1 drives the scraper 32 to rotate through the linkage cylinder 311 and the sliding rod 312. Thus, the scraper 32 scrapes the solid sodium methoxide adhered to the conical surface at the lower part of the drying tower, and the scrapers 32 arranged vertically and with overlapping scraping areas in the same group can also form a stepped propulsion of the solid sodium methoxide, directing the solid sodium methoxide to the discharge port, avoiding the accumulation dead corners that cannot be scraped.

[0040] Refer to Figure 3 and Figure 4 As shown in [relevant figure numbers], several groups of push plates 331 are equidistantly arranged along the vertical direction on the part of the fixed shaft 2 inside the linkage cylinder 311. The inner side of the push plate 331 gradually inclines towards 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 circumferentially along the fixed shaft 2, and the adjacent two groups of push plates 331 are arranged in a staggered manner along the circumferential direction of the fixed shaft 2.

[0041] When the linkage cylinder 311 drives the linkage column 33 on the sliding rod 312 to rotate and abut against the inner side of the corresponding push plate 331, the linkage column 33 moves along the inner side of the push plate 331, so that the push plate 331 drives the sliding rod 312 to move towards the axis of the linkage cylinder 311 by driving the linkage column 33. The sliding rod 312 drives the scraper 32 on it to move out of contact with the conical surface at the lower part of the drying tower, and at the same time stretches the tension spring.

[0042] When the linkage column 33 moves out of 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 strike on the conical surface at the lower part of the drying tower. Thus, the conical surface structure of the tower body is micro-vibrated in an intermittent knocking manner, increasing the falling rate of the solid sodium methoxide adhered to the conical surface at the lower part of the tower body. And because the adjacent two groups of push plates 331 are arranged in a staggered manner along the circumferential direction of the fixed shaft 2, the angular positions of the scrapers 32 in different groups striking the conical surface structure of the tower body are different. Furthermore, the conical surface structure of the tower body can be knocked and vibrated in a full-coverage manner, ensuring the effect of vibrating and falling the solid sodium methoxide.

[0043] Refer to Figure 1 、Figure 3 , Figure 5 and Figure 6 , the jitter component 43 includes a torsion spring disposed between the fixed shaft 2 and the three-jaw holder 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-jaw holder 411. A plurality of moving rods 432 sliding radially along its circumference are equidistantly arranged on the lower side of the conical cover 431. Fixed blocks 433 for pushing the moving rods 432 are fixedly installed on the upper side of the linkage cylinder 311 at equal intervals along its circumference.

[0044] Refer to Figure 5 and Figure 6 , a fixed disk 434 is fixedly installed on the side wall of the fixed shaft 2 located inside the conical cover 431. Oblique slots 435 corresponding one-to-one to the moving rods 432 are formed on the fixed disk 434. The upper ends of the moving rods 432 are slidably connected inside the corresponding oblique slots 435.

[0045] It should be noted that the oblique slots 435 are of an inclined structure gradually outward along the rotation direction of the fixed shaft 2.

[0046] In the initial state, the torsion spring pushes the three-jaw holder 411 through its own elastic force, so that the three-jaw holder 411 drives the moving rod 432 to be located at one end of the oblique slot 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 be in the same circumferential 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 thereon to move to abut against the outer side surface of the moving rod 432, the fixed block 433 drives the conical cover 431 to rotate synchronously by pushing the moving rod 432. The conical cover 431 drives the receiving plate 42 to rotate synchronously through the three-jaw holder 411 and the ring plate 412. The moving rod 432 moves along the trajectory of the oblique slot 435 in the direction away from the axis of the fixed shaft 2 while rotating, and at the same time stores energy for the torsion spring.

[0048] When the moving rod 432 moves outwards to the outside of the fixed block 433, the fixed block 433 no longer blocks the moving rod 432, so that the torsion spring drives the three-jaw holder 411 and the receiving plate 42 to rotate and reset quickly 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 improving the sliding rate of the material on the receiving plate 42.

[0049] Refer to Figure 3 , Figure 5 and Figure 6 , the upper end of the fixed shaft 2 is of a cone structure matching the conical cover 431. A pull rope 437 is fixedly connected between the cone structure of the fixed shaft 2 and the upper sides of the respective receiving plates 42.

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

[0051] When the torsion spring drives the material receiving plate 42 to rotate quickly and reset, the pull rope 437 no longer pulls the upper side of the material receiving plate 42, enabling the spring telescopic rod 436 to quickly drive the material receiving plate 42 to reset through its own elastic force, thereby forming an up-and-down vibration of the solid sodium methoxide on the material receiving plate 42, and further increasing the falling rate of the solid sodium methoxide by combining rotation and shaking with up-and-down jolting.

[0052] Refer to Figures 1 to 6 , when the present invention discharges the dried solid sodium methoxide, the following steps are further included: First step, the material receiving plate 42 shields a certain part of the conical surface at the lower part of the drying tower, so that a part of the dried solid sodium methoxide falls onto the upper side surface of the material receiving plate 42 and directly falls to the bottom of the drying tower along the material receiving plate 42 for discharging.

[0053] Second step, start the asynchronous motor to drive the rotating pipe 1 to rotate, so that the scraper 32 scrapes the solid sodium methoxide adhering to the lower conical surface of the drying tower, and forms a stepped propulsion of the solid sodium methoxide, guiding the solid sodium methoxide to the discharge port in a directional manner to avoid the accumulation dead corners that cannot be swept.

[0054] Third step, the linkage cylinder 311 drives the linkage column 33 to rotate until it abuts against the inner side surface of the corresponding push plate 331, so that the push plate 331 drives the scraper 32 on it to move and stretch the pull spring, and then the pull spring drives the scraper 32 to knock on the lower conical surface of the drying tower, and slightly vibrates the conical surface structure of the tower body by means of intermittent knocking, increasing the falling rate of the solid sodium methoxide adhering to the lower conical surface of the tower body.

[0055] 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 winds the torsion spring, and 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 slope of the material receiving plate 42, further preventing the material receiving plate 42 from adhering to materials, and at the same time, the material receiving plate 42 compresses the spring telescopic rod 436 for energy storage.

[0056] Fifth step, the torsion spring drives the material receiving plate 42 to rotate quickly and reset, causing the material receiving plate 42 to shake the solid sodium methoxide on its upper side, preventing the solid sodium methoxide from adhering to the material receiving plate 42. The spring telescopic rod 436 quickly drives the material receiving plate 42 to reset, thereby forming a vertical vibration of the solid sodium methoxide on the material receiving plate 42. By combining rotational shaking and vertical jolting, the falling rate of the solid sodium methoxide is further increased.

[0057] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention, and still be covered by the protection scope of the present invention.

Claims

1. A discharge structure for a solid sodium methoxide spray dryer, comprising a rotating tube that penetrates through the drying tower vertically and is rotatably connected thereto, characterized in that, A fixed shaft with its lower end fixedly connected to the spray dryer is rotatably arranged on the inner side of the rotating pipe. The discharging structure further includes a scraping unit for quickly discharging materials by scraping the materials adhered to the lower conical surface of the drying tower, and a guiding unit for sharing the discharging pressure of the lower conical surface of the drying tower. The scraping unit includes several groups of scraping plates arranged on the upper part of the rotating pipe through a connecting component. The multiple groups of scraping plates are arranged at equal intervals along the circumferential direction of the rotating pipe. Each group consists of several scraping plates arranged at equal intervals up and down. The outer side of the scraping plate fits on the conical surface of the lower part of the drying tower. The guiding unit includes several receiving plates arranged on the fixed shaft through a bearing component. The receiving plates are in a fan-shaped structure, and the upper side of the receiving plate is in a conical structure. The several receiving plates are arranged at equal intervals along the circumferential direction of the fixed shaft. The guiding unit further includes a shaking component for driving the receiving plates to shake and discharge materials when the rotating pipe rotates.

2. The discharging structure for a solid sodium methoxide spray dryer according to claim 1, wherein The scraping plate is in a spiral structure with one end higher in the same direction as its rotation direction and the other end lower in the opposite direction of its rotation direction. The lower ends of the scraping plates in the same group are located below the upper ends of the lower scraping plates in the same group.

3. The discharging structure for a solid sodium methoxide spray dryer according to claim 1, characterized in that, The connecting component includes a linkage cylinder fixedly installed at the upper end of the rotating pipe. Several sliding rods are slidably arranged on the linkage cylinder along its radial direction. The sliding rods are fixedly connected to the scraping plates at corresponding positions.

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

5. The discharging structure for a solid sodium methoxide spray dryer according to claim 4, wherein, Several groups of push plates are arranged at equal intervals along the vertical direction on the part of the fixed shaft located inside the linkage cylinder. The inner side of the push plate gradually inclines towards the direction close to the axis of the linkage cylinder along the rotation direction of the linkage cylinder.

6. The discharging structure for a solid sodium methoxide spray dryer according to claim 5, wherein Each group of the push plates consists of several push plates arranged along the circumferential direction of the fixed shaft. The adjacent two groups of push plates are arranged in a staggered manner along the circumferential direction of the fixed shaft.

7. A discharge structure for a solid sodium methoxide spray dryer according to claim 3, characterized in that, The bearing component includes an annular plate rotatably connected to the outside of the fixed shaft through a three-jaw bracket. The outer side of the annular plate fits on the inner wall of the drying tower. The inner side of the annular plate is hinged to the receiving plate.

8. The discharging structure for a solid sodium methoxide spray dryer according to claim 7, wherein, The shaking component includes a torsion spring arranged between the fixed shaft and the three-jaw bracket. A conical cover is fixedly installed on the upper side of the middle part of the three-jaw bracket. Several moving rods sliding along its radial direction are arranged at equal intervals along the circumferential direction on the lower side of the conical cover. Fixed blocks for pushing the moving rods are fixedly installed at equal intervals along the circumferential direction on the upper side of the linkage cylinder.

9. The discharging structure for a solid sodium methoxide spray dryer according to claim 8, characterized in that, A fixed disk is fixedly installed on the side wall of the fixed shaft located inside the conical cover. Oblique grooves corresponding to the moving rods one by one are formed on the fixed disk. The upper ends of the moving rods are slidably connected inside the corresponding oblique grooves.

10. The discharging structure for a solid sodium methoxide spray dryer according to claim 8, characterized in that, The upper end of the fixed shaft is in a conical structure matching the conical cover. A spring telescopic rod is hinged between the receiving plate and the annular plate. A pulling rope is fixedly connected between the conical structure of the fixed shaft and the upper sides of the respective receiving plates.

Images