Packed tower for synthesizing organic lithium magnesium complex catalyst

Abstract

The packed tower comprises a tower body, the tower body is provided with a plurality of flaring openings, the flaring openings correspond to a plurality of packing layers, the flaring openings are used for taking out or filling packing of the packing layers, the tower body is provided with a plurality of sealing assemblies, the sealing assemblies correspond to the flaring openings in a one-to-one mode, and the flaring openings correspond to the packing layers in a one-to-one mode. And the sealing assembly is used for sealing the flaring. The device has the effect of improving the filler replacement speed of the packed tower.

Description

Technical Field

[0001] The present application relates to the field of chemical equipment, and in particular to a packing tower for synthesizing an organic lithium-magnesium complex catalyst. Background Art

[0002] Lithium-magnesium complex catalyst is a nucleophilic reagent that is widely used in organic synthesis. It is often used in factories to manufacture steroidal compounds such as vitamin A and cortisone. Currently, lithium-magnesium compounds are often prepared using continuous technology, in which a packed tower is required to distill and separate the mixture from the intermediate product.

[0003] During the production and use of the packed tower, the packing inside the packed tower will gradually be consumed and worn, and the packing needs to be replaced regularly. At present, the packing replacement requires opening the top of the packed tower, removing the old packing from the top of the packed tower in sequence, and then packing the packing from the top of the packed tower in sequence. Since the packing inside the packed tower has a multi-layer structure, when only one layer of packing is replaced, all the packing needs to be taken out, which makes the packing replacement of the packed tower more cumbersome and the efficiency of replacing the packing is not high. Therefore, a packed tower with replaceable single-layer packing is needed first. Utility Model Content

[0004] In order to increase the speed of replacing packing in a packed tower, the present application provides a packed tower for synthesizing an organic lithium-magnesium complex catalyst.

[0005] The present application provides a packed tower for synthesizing an organic lithium-magnesium complex catalyst, which adopts the following technical solution:

[0006] A packing tower for synthesizing an organic lithium-magnesium complex catalyst comprises a tower body, wherein the tower body is provided with a plurality of flared openings corresponding to a plurality of packing layers, the flared openings are used to take out or load packing from the packing layers, and the tower body is provided with a plurality of sealing assemblies corresponding one-to-one to the plurality of flared openings, the sealing assemblies are used to seal the flared openings.

[0007] By adopting the above technical scheme, the expansion port corresponds to the packing layer of the tower body. When the packing layer needs to be replaced, the staff can open the expansion port with the sealing component, then take the filler out of the tower body through the expansion port, and then place the new filler into the tower body through the expansion port, and then seal the expansion port with the sealing component to ensure the sealing of the tower body. Each packing layer corresponds to the expansion port, and there is no need to take the filler out from the top of the tower one by one, which greatly improves the replacement speed of the filler and the working efficiency of the packed tower.

[0008] Optionally, the sealing assembly includes a sealing door, a sealing strip and a locking piece, one end of the sealing door is rotatably connected to the side wall of the flared opening, the sealing strip is arranged on the side wall of the sealing door, a sealing groove for engaging with the sealing strip is opened on the side wall of the flared opening, and the locking piece is used to keep the sealing strip engaged with the sealing groove.

[0009] By adopting the above technical scheme, the sealing door is used to seal the flared opening, the sealing strip and the sealing groove cooperate to improve the coordination effect between the sealing door and the flared opening, and improve the sealing effect of the sealing door, the locking piece is used for the sealing door to maintain the sealed flared opening, the sealing assembly improves the sealing effect of the flared opening of the packing tower when it is working, and the sealing assembly has a simple and reliable structure.

[0010] Optionally, the locking member includes a gear, a rack, a ratchet, a pawl and a locking spring, the rack being arranged on the sealing door, the gear being rotatably connected to the outer wall of the tower body, the gear being used to mesh with the rack, the ratchet being coaxially arranged with the gear, the ratchet being arranged on one end of the gear, the pawl being rotatably connected to the outer wall of the tower body, the pawl being used to engage with the ratchet, and the locking spring being used to keep the pawl engaged with the ratchet.

[0011] By adopting the above technical solution, when the sealing door rotates toward the expansion, the sealing door drives the rack to move, and the gear rotates relative to the rack, and the gear drives the ratchet to rotate. The pawl overcomes the locking spring and disengages from the ratchet. When the sealing door seals the expansion and the sealing strip is engaged with the sealing groove, the pawl is engaged with the ratchet under the action of the locking spring. The ratchet limits the rotation of the gear, so that the rack cannot move. The ratchet pawl has a locking effect, so that the sealing door maintains a sealed expansion state. The locking piece has a simple structure and is easy for the staff to operate.

[0012] Optionally, the sealing door has a semicircular cross-section along the vertical direction, and the locking member also includes a limit block and a mounting block, the mounting block is arranged on the outer wall of the sealing door, the rack is slidably connected to the mounting block along the tangential direction of the sealing door, and the limit block is arranged on the end of the rack away from the gear.

[0013] By adopting the above technical solution, since the rack is on the sealing door and the sealing door is rotatably connected to the tower body, the rack cannot move, which will cause the rack and the gear to be improperly meshed or even stuck. The movement of the rack can first put the sealing door in a state where the sealing strip is clamped in the sealing groove. At this time, the rack and the gear remain in the same plane, and then the rack is moved. The rack will drive the gear to rotate, and the gear will drive the ratchet to rotate. The pawl overcomes the elastic force of the locking spring and moves away from the pawl until the limit block abuts against the mounting block. The rack cannot move relative to the sealing door. At this time, the pawl is clamped on the pawl under the action of the locking spring, the gear cannot rotate, the rack cannot rotate, and the sealing door maintains the flared sealing state.

[0014] Optionally, the locking member further includes a toggle bar and a rotating disk, wherein the toggle bar is arranged on the pawl, the rotating disk is arranged coaxially with the gear, and the rotating disk is arranged on the end face of the gear.

[0015] By adopting the above technical solution, when the staff needs to unlock the sealing door, the staff can hold the toggle bar, and the toggle bar drives the pawl to overcome the locking spring, and the pawl disengages from the ratchet. At this time, the ratchet is in a free state, and then the rotating disk is rotated. Then the staff drives the gear to rotate, and the gear drives the rack to move until the rack disengages from the gear. Then the sealing door is rotated to take out the filler in the flared mouth. The toggle bar and the rotating disk make it convenient for the staff to operate the pawl and the gear.

[0016] Optionally, a clamping assembly for compacting the filler in the tower body is provided on the sealing door, and the clamping assembly includes a clamping ring, a support plate and a driving member. The support plate is arranged on the inner side wall of the tower body, the clamping ring is coaxially arranged with the sealing door, the clamping ring is slidably connected to the sealing door in a vertical direction, and the driving member is used to drive the clamping ring to move.

[0017] By adopting the above technical solution, since the packing is placed in the tower body through the expansion mouth and the sealing door is closed, the staff will drive the clamping ring to move through the driving member, and the clamping ring will abut against the upper end surface of the packing. The packing will be pressed against the support plate under the action of the clamping ring. The clamping assembly is used to make the packing better contact the support plate, reduce the movement of the packing in the tower body, and improve the separation effect of the packing tower.

[0018] Optionally, the driving member includes a driving screw and a driving disk, the length direction of the driving screw is parallel to the sliding direction of the clamping ring, the driving screw is rotatably connected to the sealing door, the clamping ring is threadedly connected to the driving screw, and the driving disk is arranged on one end of the driving screw.

[0019] By adopting the above technical solution, the driving disc drives the driving screw to rotate, and the clamping ring moves toward the material under the drive of the driving screw until the material abuts against the supporting disc. The driving component has a simple structure and is easy to operate by the staff.

[0020] Optionally, the upper end of the support plate is wavy, and through holes are evenly formed on the support plate.

[0021] By adopting the above technical solution, the upper end surface of the support plate is wavy, which improves the overall strength of the support plate. The contact area between the support plate and the filler is small, which reduces the occurrence of the through hole being blocked by the filler, and the transmission effect is better.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. The tower body is provided with a number of expansion ports, which are used to take out the fillers of a single-layer filler layer, and the sealing assembly is used to seal the expansion ports;

[0024] 2. The locking piece is used to maintain the sealing expansion of the sealing door;

[0025] 3. The compression assembly reduces the movement of the packing layer relative to the tower body and improves the separation effect of the packed tower. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a packed tower used for synthesizing organic lithium magnesium complex catalysts.

[0027] Figure 2 yes Figure 1 Schematic diagram of the sealing assembly.

[0028] Figure 3 yes Figure 2 Enlarged view of point A in the middle.

[0029] Figure 4 yes Figure 2 A cross-sectional view of the middle sealing door is used to show the structural schematic diagram of the drive component.

[0030] 1. Tower body; 11. Flaring; 12. Sealing groove; 13. Mounting groove; 14. Control groove; 2. Sealing assembly; 21. Sealing door; 22. Sealing strip; 23. Locking piece; 231. Gear; 232. Rack; 233. Ratchet; 234. Pawl; 235. Locking spring; 236. Limiting block; 237. Mounting block; 238. Toggle bar; 239. Rotating disk; 3. Clamping assembly; 31. Clamping ring; 32. Support disk; 321. Through hole; 33. Driving piece; 331. Driving screw; 332. Driving disk; 4. Packing layer. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-4 This application is described in further detail.

[0032] The present application discloses a packed tower for synthesizing an organic lithium magnesium complex catalyst. Figure 1 and Figure 2 A packed tower for synthesizing an organic lithium-magnesium complex catalyst comprises a tower body 1 and three sealing components 2. The tower body 1 is cylindrical and vertically arranged. A cavity is arranged inside the tower body 1. Three packing layers 4 are distributed in the cavity along the vertical direction. Three expansion openings 11 are opened on the tower body 1. The width of the expansion opening 11 is equal to the diameter of the tower body 1. The three expansion openings 11 correspond to the three packing layers 4 one by one. The three sealing components 2 correspond to the three expansion openings 11 one by one. The sealing components 2 are used to seal the expansion openings 11.

[0033] refer to Figure 2 and Figure 3 The sealing assembly 2 includes a sealing door 21, a sealing strip 22 and a locking member 23. The sealing door 21 is vertically arranged, and the cross-section of the sealing door 21 along the vertical direction is semicircular. One end of the sealing door 21 is rotatably connected to the inner side wall of the flared opening 11 along the vertical direction. The sealing strip 22 is vertically arranged, and the sealing strip 22 is fixedly arranged on one end of the sealing door 21 away from the rotation axis of the sealing door 21. A sealing groove 12 is opened on the inner side wall of the flared opening 11 facing the sealing strip 22, and the sealing groove 12 is used for clamping and cooperating with the sealing strip 22. A handle is fixedly arranged on the outer side wall of the sealing door 21.

[0034] refer to Figure 2 and Figure 3 The locking member 23 includes a gear 231, a rack 232, a ratchet 233, a pawl 234, a locking spring 235, a limit block 236, a mounting block 237, a toggle bar 238 and a rotating disk 239. The mounting block 237 is fixedly arranged on the outer wall of the sealing door 21. The rack 232 is arranged horizontally. The length direction of the rack 232 is tangent to the outer wall of the sealing door 21. The rack 232 is slidably connected to the mounting block 237 along the tangent direction of the outer wall of the sealing door 21. The limit block 236 is fixedly arranged on the side of the rack 232 away from the sealing groove 12. The gear 231 is arranged vertically. The gear 231 is rotatably connected to the outer wall of the tower body 1. The gear 231 is used to mesh with the rack 232. The rotating disk 239 is coaxially arranged with the gear 231, and one end of the rotating disk 239 is fixedly arranged on the rotation axis of the gear 231.

[0035] refer to Figure 2 and Figure 3 The ratchet 233 is coaxially arranged with the gear 231, one end of the ratchet 233 is fixedly arranged on the end face of the gear 231, the pawl 234 is rotatably connected to the outer wall of the tower body 1, the pawl 234 is used to engage with the ratchet 233, the locking spring 235 is horizontally arranged, one end of the locking spring 235 is fixedly arranged on the outer side of the tower body 1, and the other end of the locking spring 235 is fixedly arranged on the pawl 234, the length direction of the toggle bar 238 is parallel to the radial direction of the rotation axis of the pawl 234, and one end of the toggle bar 238 is fixedly arranged on the pawl 234.

[0036] refer to Figure 2 and Figure 4A compression assembly 3 for compressing the filler is provided on the sealing door 21, and the compression assembly 3 includes a compression ring 31, a support plate 32 and a driving member 33. The support plate 32 is coaxially arranged with the tower body 1, and the support plate 32 is fixedly arranged on the inner side wall of the tower body 1. The upper end surface of the support plate 32 is wavy, and the highest point of the wavy upper end surface of the support plate 32 remains consistent. A plurality of through holes 321 for liquid and gaseous materials to pass through are evenly distributed on the support plate 32. The compression ring 31 is coaxially arranged with the sealing door 21, and the compression ring 31 abuts against the inner side wall of the sealing door 21. The compression ring 31 is slidably connected to the sealing door 21 along the vertical direction.

[0037] refer to Figure 2 and Figure 4 The driving member 33 includes a driving screw 331 and a driving disk 332. A mounting groove 13 is provided on the inner side wall of the sealing door 21. The length direction of the mounting groove 13 is parallel to the moving direction of the clamping ring 31. The mounting groove 13 extends along the radial direction of the sealing door 21. The length direction of the driving screw 331 is parallel to the length direction of the mounting groove 13. The driving screw 331 is rotatably connected in the mounting groove 13. The driving screw 331 is threadedly connected to the clamping ring 31. A control groove 14 is provided on the outer side wall of the sealing door 21. The control groove 14 extends along the radial direction of the sealing door 21. The upper end face of the driving screw 331 penetrates into the control groove 14. The driving disk 332 is located in the control groove 14. The driving disk 332 is coaxially arranged with the driving screw 331. The lower end face of the driving disk 332 is fixedly arranged on the upper end face of the driving screw 331.

[0038] The implementation principle of a packing tower for synthesizing an organic lithium-magnesium complex catalyst in an embodiment of the present application is as follows: when the tower body 1 needs to be replaced with packing, the staff will first rotate the drive disk 332, and the drive disk 332 drives the drive screw 331 to rotate, and the drive screw 331 drives the clamping ring 31 to move in a direction away from the packing layer 4. Then the staff holds the toggle bar 238, and the pawl 234 overcomes the elastic force of the locking spring 235 and moves away from the ratchet 233. Then the staff can rotate the rotating disk 239, and the rotating disk 239 drives the gear 231 to rotate, and the gear 231 drives the rack 232 to move. When the gear 231 is disengaged from the rack 232, the staff can hold the handle to rotate the sealing door 21, and then the staff can remove the packing to be cleaned and replace the new packing layer 4 onto the support disk 32.

[0039] Close the sealing door 21 until the sealing strip 22 is engaged in the sealing groove 12, then slide the rack 232, the rack 232 drives the gear 231 to rotate, the gear 231 drives the ratchet 233 to rotate, the ratchet 233 makes the pawl 234 overcome the elastic force of the locking spring 235 and rotate in the direction away from the ratchet 233, until the limit block 236 abuts against the mounting block 237, so that the sealing door 21 keeps the sealing expansion 11, then rotate the drive disk 332, the drive disk 332 drives the drive screw 331 to rotate, the drive screw 331 drives the clamping ring 31 to move toward the packing layer 4 until it abuts against the upper end surface of the packing layer 4, thereby reducing the movement of the packing layer 4 in the tower body 1.

[0040] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A packed tower for synthesizing an organic lithium magnesium complex catalyst, characterized in that: The tower body (1) comprises a tower body (1), wherein the tower body (1) is provided with a plurality of flared openings (11), the plurality of flared openings (11) corresponding to a plurality of packing layers (4), the flared openings (11) being used to take out or load packing from the packing layers (4), the tower body (1) being provided with a plurality of sealing assemblies (2), the plurality of sealing assemblies (2) corresponding one-to-one to the plurality of flared openings (11), the sealing assemblies (2) being used to seal the flared openings (11); the sealing assemblies (2) comprising a sealing door (21), a sealing strip (22) and a locking member (23), one end of the sealing door (21) being rotatably connected to a side wall of the flared opening (11), the sealing strip (22) being arranged on the side wall of the sealing door (21), the side wall of the flared opening (11) being provided with a sealing groove (12) for engaging with the sealing strip (22), the locking member (23) being used for the sealing strip (22) remains engaged with the sealing groove (12); the locking member (23) comprises a gear (231), a rack (232), a ratchet (233), a pawl (234) and a locking spring (235); the rack (232) is arranged on the sealing door (21); the gear (231) is rotatably connected to the outer wall of the tower body (1); the gear (231) is used to mesh with the rack (232); the ratchet (233) is coaxially arranged with the gear (231); the ratchet (233) is arranged on one end of the gear (231); the pawl (234) is rotatably connected to the outer wall of the tower body (1); the pawl (234) is used to engage with the ratchet (233); and the locking spring (235) is used to keep the pawl (234) engaged with the ratchet (233).

2. A packed tower for synthesizing an organic lithium magnesium complex catalyst according to claim 1, characterized in that: The sealing door (21) has a semicircular cross-section in the vertical direction. The locking member (23) further comprises a limit block (236) and a mounting block (237). The mounting block (237) is arranged on the outer wall of the sealing door (21). The rack (232) is slidably connected to the mounting block (237) along the tangential direction of the sealing door (21). The limit block (236) is arranged on an end of the rack (232) away from the gear (231).

3. A packed tower for synthesizing an organic lithium magnesium complex catalyst according to claim 2, characterized in that: The locking member (23) further comprises a toggle bar (238) and a rotating disk (239), wherein the toggle bar (238) is arranged on the pawl (234), the rotating disk (239) is coaxially arranged with the gear (231), and the rotating disk (239) is arranged on the end surface of the gear (231).

4. A packed tower for synthesizing an organic lithium magnesium complex catalyst according to claim 1, characterized in that: The sealing door (21) is provided with a compression assembly (3) for compacting the filler in the tower body (1); the compression assembly (3) comprises a compression ring (31), a support plate (32) and a drive member (33); the support plate (32) is arranged on the inner side wall of the tower body (1); the compression ring (31) is coaxially arranged with the sealing door (21); the compression ring (31) is slidably connected to the sealing door (21) in a vertical direction; and the drive member (33) is used to drive the compression ring (31) to move.

5. A packed tower for synthesizing an organic lithium magnesium complex catalyst according to claim 4, characterized in that: The driving member (33) comprises a driving screw (331) and a driving disk (332); the length direction of the driving screw (331) is parallel to the sliding direction of the clamping ring (31); the driving screw (331) is rotatably connected to the sealing door (21); the clamping ring (31) is threadedly connected to the driving screw (331); and the driving disk (332) is arranged on one end of the driving screw (331).

6. A packed tower for synthesizing an organic lithium magnesium complex catalyst according to claim 4, characterized in that: The upper end of the support plate (32) is wavy, and through holes (321) are evenly formed on the support plate (32).

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