CN217910030U - Agitating unit is used in hydroxypropyl methylcellulose production of esterifying - Google Patents

Abstract

The utility model relates to a hydroxypropyl methylcellulose is agitating unit for esterification production, including the inner tank body, be equipped with agitating unit and heat preservation device on the inner tank body, agitating unit includes drive shaft, (mixing) shaft, stirring vane, outer gear, internal gear and rotary disk, the bottom and the rotary disk fixed connection of drive shaft, the outer gear rotates and sets up the upper surface at the rotary disk, and outer gear and internal gear meshing, the top and the outer gear fixed connection of (mixing) shaft, and the bottom of (mixing) shaft runs through outer gear and rotary disk and set up in the below of rotary disk, is equipped with coupling mechanism between (mixing) shaft and the stirring vane, the utility model discloses well (mixing) shaft, stirring vane and outer gear all are provided with three groups, and all set up along the circumference equidistance interval of rotary disk, drive the drive shaft through external motor and rotate, make stirring vane rotate around the axis of (mixing) shaft on one side around the axis of drive shaft, improve stirring efficiency.

Description

Agitating unit is used in hydroxypropyl methylcellulose production of esterifying

Technical Field

The utility model relates to a agitating unit technical field specifically is an agitating unit is used in hydroxypropyl methylcellulose production of esterifying.

Background

Hydroxypropyl methylcellulose (HPMC) is a raw material for producing esterified products such as hydroxypropyl methylcellulose phthalate (HPMCP) and hydroxypropyl methylcellulose acetate succinate (HPMCAS), and HPMCAS and HPMCP are widely used in the pharmaceutical field. When HPMC and other materials are mixed to synthesize HPMCAS or HPMCP, the viscosity of the raw materials is high, the existing stirring device generally only drives a stirring blade to rotate through a stirring shaft to stir, and the phenomenon of uneven stirring exists; in addition, the stirring blades belong to wearing parts during production and need to be periodically maintained or replaced, the stirring blades of some stirring devices are not easy to take out of the tank body, and some stirring blades are not easy to detach from the stirring shaft; simultaneously, the required reaction temperature of HPMC esterification in-process is higher than indoor temperature, and the single-deck jar body is mostly chooseed for use to current agitating unit, and the heat preservation effect is poor.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

To the problem that exists among the prior art, the utility model provides a hydroxypropyl methylcellulose is agitating unit for production of esterifying to solve the current agitating unit inhomogeneous technical problem of stirring who mentions in the background art.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a hydroxypropyl methylcellulose is agitating unit for production of esterifying, includes the inner tank body, be equipped with agitating unit and heat preservation device on the inner tank body, agitating unit includes drive shaft, (mixing) shaft, stirring vane, outer gear, inner gear and rotary disk, the bottom and the rotary disk fixed connection of drive shaft, the outer gear rotates the upper surface that sets up at the rotary disk, and outer gear and internal gear meshing, the top and the outer gear fixed connection of (mixing) shaft, and the bottom of (mixing) shaft runs through outer gear and rotary disk and set up in the below of rotary disk, is equipped with coupling mechanism between (mixing) shaft and the stirring vane, heat preservation device includes the outer tank body, inlet pipe and discharging pipe, one side of the inner tank body is set up to the inlet pipe, and the inlet pipe setting is in the below of rotary disk, and the outer tank body cover is established in the inside of the jar body, and be provided with inlet pipe complex logical groove on the outer tank body, lead to the inslot and slide, discharging pipe and the bottom of the inner tank body is connected, and the discharging pipe runs through the outer tank body.

Preferably, coupling mechanism includes the connecting axle, the connecting axle sets up the upper surface at stirring vane, and the top of connecting axle slides and sets up inside the (mixing) shaft, is equipped with first through-hole on the (mixing) shaft, be provided with on the connecting axle with first through-hole complex second through-hole, first through-hole and second through-hole pass through bolted connection, are convenient for dismantle stirring vane get off and change.

In further preferred, one side of (mixing) shaft is equipped with the connection plane, and one side in addition of (mixing) shaft is equipped with the spacing groove, and the nut of being convenient for and (mixing) shaft laminating through setting up the spacing groove, the bolt rotation when preventing to twist the nut.

Preferably, the outer side of the rotating disc is sleeved with a connecting sleeve, the rotating disc is rotatably connected with the inner wall of the connecting sleeve, the outer edge of the inner gear is fixedly connected with the inner wall of the connecting sleeve, and the connecting sleeve is slidably arranged in the inner tank body, so that the stirring device can be conveniently placed into the inner tank body for stirring.

In further preferred, the connecting sleeve is provided with a cover plate above, the driving shaft is rotatably connected with the cover plate, the upper surface of the connecting sleeve is provided with a connecting plate, and the cover plate, the connecting plate and the outer tank body are detachably connected through screws, so that the cover plate, the connecting sleeve, the inner tank body and the outer tank body are conveniently connected and fixed.

It is preferred in further, all be equipped with the ring flange on inlet pipe and the discharging pipe, the bottom of the outer jar of body is equipped with the third through-hole, and the diameter of third through-hole is greater than the diameter of ring flange, and the third through-hole internal slip is equipped with to opening the cover, is provided with two to opening the cover, and the symmetrical cover is established in the outside of discharging pipe, two to opening the cover all with the lower surface of the outer jar of body pass through screw detachably and connect, can fill heat preservation thermal insulation material between the outer jar of body and the inner tank body during the use, shelter from the third through-hole through opening the cover, prevent that heat preservation thermal insulation material from falling out.

Preferably, the sliding plates are arranged on two sides of the sliding plate, sliding grooves matched with the sliding plates are formed in the outer tank body, and the sliding plates are conveniently connected and matched with the outer tank body.

(III) advantageous effects

Compared with the prior art, the utility model provides a hydroxypropyl methylcellulose is agitating unit for esterification production possesses following beneficial effect:

1. in the utility model, three groups of stirring shafts, three groups of stirring blades and three groups of outer gears are arranged at equal intervals along the circumferential direction of the rotating disc, and the external motor drives the driving shaft to rotate, so that the stirring blades rotate around the axis of the driving shaft and rotate around the axis of the stirring shaft at the same time, thereby improving the stirring efficiency;

2. the utility model discloses well (mixing) shaft and connecting axle pass through bolt detachably and connect, are convenient for dismantle stirring vane get off and change, through setting up the connection plane, are convenient for nut and (mixing) shaft laminating, through setting up the spacing groove, prevent to twist the bolt rotation when nut;

3. the utility model discloses in through including fill thermal insulation material between jar body and the outer jar body, can improve the device's thermal insulation performance, through setting up logical groove and through-hole, be convenient for the inner tank body put into the outer jar body, through setting up the slide, be convenient for shelter from logical groove department, through setting up the split cover, shelter from through-hole department, prevent that the thermal insulation material who fills from falling out.

Drawings

Fig. 1 is a schematic view of the overall structure of a stirring device for esterification production of hypromellose in the present invention;

FIG. 2 is a schematic view of the unconnected state of the inner tank and the outer tank of the present invention;

fig. 3 is a partial schematic view of the area a in fig. 2 according to the present invention;

FIG. 4 is a schematic structural view of a stirring device of the present invention;

fig. 5 is a schematic diagram of the explosion structure of fig. 4 in the present invention.

In the figure: 1. an inner tank body; 2. a drive shaft; 3. a stirring shaft; 4. a stirring blade; 5. an outer gear; 6. an internal gear; 7. rotating the disc; 8. an outer tank body; 9. a feed pipe; 10. a discharge pipe; 11. a through groove; 12. a slide plate; 13. a connecting shaft; 14. a first through hole; 15. a second through hole; 16. a connection plane; 17. a limiting groove; 18. connecting sleeves; 19. a cover plate; 20. a connecting plate; 21. a flange plate; 22. a third through hole; 23. splitting the sleeve; 24. a slide bar; 25. a chute.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1:

referring to fig. 1-5, a stirring device for hypromellose esterification production, including the inner tank body 1, be equipped with agitating unit and heat preservation device on the inner tank body 1, agitating unit includes drive shaft 2, the (mixing) shaft 3, stirring vane 4, outer gear 5, inner gear 6 and rotary disk 7, the bottom of drive shaft 2 and rotary disk 7 fixed connection, outer gear 5 rotates and sets up the upper surface at rotary disk 7, and outer gear 5 and inner gear 6 mesh, the top and outer gear 5 fixed connection of (mixing) shaft 3, and the bottom of (mixing) shaft 3 runs through outer gear 5 and rotary disk 7 and sets up in the below of rotary disk 7, be equipped with coupling mechanism between (mixing) shaft 3 and stirring vane 4, heat preservation device includes the outer tank body 8, inlet pipe 9 and discharging pipe 10, inlet pipe 9 sets up one side of the inner tank body 1, and inlet pipe 9 sets up the below rotary disk 7, the outer tank body 8 cover is established in the outside of the inner tank body 1, and be provided with through groove 11 with inlet pipe 9 sliding in the outer tank body 8, through groove 11 is equipped with slide 12, discharging pipe 10 is connected with the bottom of the inner tank body 1, and discharging pipe 10 runs through the outer tank body 8.

Referring to fig. 1, 4 and 5, the connecting mechanism includes a connecting shaft 13, the connecting shaft 13 is disposed on the upper surface of the stirring blade 4, the top of the connecting shaft 13 is slidably disposed inside the stirring shaft 3, the stirring shaft 3 is provided with a first through hole 14, the connecting shaft 13 is provided with a second through hole 15 matching with the first through hole 14, and the first through hole 14 and the second through hole 15 are connected by a bolt. One side of the stirring shaft 3 is provided with a connecting plane 16, and the other side of the stirring shaft 3 is provided with a limiting groove 17. When the stirring shaft is used, the connecting shaft 13 is inserted into the stirring shaft 3, the first through hole 14 and the second through hole 15 are aligned, the bolt is inserted into the first through hole 14 and the second through hole 15 from one side of the limiting groove 17, the head of the bolt is limited through the limiting groove 17, the bolt is prevented from rotating, the nut and the bolt are in threaded connection until the nut is attached to the connecting plane 16, and the connecting shaft 13 and the stirring shaft 3 are fixedly connected.

Referring to fig. 1, 4 and 5, a connecting sleeve 18 is sleeved outside the rotating disc 7, the rotating disc 7 is rotatably connected with the inner wall of the connecting sleeve 18, the outer edge of the internal gear 6 is fixedly connected with the inner wall of the connecting sleeve 18, and the connecting sleeve 18 is slidably arranged in the inner tank body 1. A cover plate 19 is arranged above the connecting sleeve 18, the driving shaft 2 is rotatably connected with the cover plate 19, a connecting plate 20 is arranged on the upper surface of the connecting sleeve 18, and the cover plate 19, the connecting plate 20 and the outer tank body 8 are detachably connected through screws. When the connecting sleeve is used, the connecting sleeve 18 is placed in the inner tank body 1, the connecting plate 20 is attached to the outer tank body 8 and the upper surface of the inner tank body 1, the cover plate 19 covers the connecting sleeve 18, and the cover plate 19, the connecting plate 20 and the outer tank body 8 are fixedly connected through screws.

Referring to fig. 1-3, the feed pipe 9 and the discharge pipe 10 are both provided with flanges 21, the bottom of the outer tank 8 is provided with a third through hole 22, the diameter of the third through hole 22 is larger than that of the flanges 21, two split sleeves 23 are slidably arranged in the third through hole 22, the split sleeves 23 are symmetrically sleeved on the outer side of the discharge pipe 10, and the two split sleeves 23 are detachably connected with the lower surface of the outer tank 8 through screws. The two sides of the sliding plate 12 are both provided with sliding strips 24, and the outer tank body 8 is provided with a sliding groove 25 matched with the sliding strips 24. When the novel discharging device is used, the inner tank body 1 is placed into the outer tank body 8, the feeding pipe 9 on the inner tank body 1 is matched with the through groove 11 on the outer tank body 8, the discharging pipe 10 on the inner tank body 1 penetrates through the third through hole 22 on the outer tank body 8, the two oppositely-opened sleeves 23 are sleeved on the outer side of the discharging pipe 10, the two oppositely-opened sleeves 23 are inserted into the third through hole 22, the oppositely-opened sleeves 23 and the outer tank body 8 are fixed through screw connection, and the inner tank body 1 and the outer tank body 8 are connected and fixed.

Example 2:

in summary, when the stirring shaft is used, the connecting shaft 13 is inserted into the stirring shaft 3, the first through hole 14 and the second through hole 15 are aligned, the bolt is inserted into the first through hole 14 and the second through hole 15 from one side of the limiting groove 17, the head of the bolt is limited through the limiting groove 17 to prevent the bolt from rotating, the nut and the bolt are in threaded connection until the nut is attached to the connecting plane 16, so that the connecting shaft 13 and the stirring shaft 3 are fixedly connected, the inner tank 1 is placed into the outer tank 8, the feeding pipe 9 on the inner tank 1 is matched with the through groove 11 on the outer tank 8, the discharging pipe 10 on the inner tank 1 penetrates through the third through hole 22 on the outer tank 8, the two split sleeves 23 are sleeved outside the discharging pipe 10, the two split sleeves 23 are inserted into the third through hole 22, the split sleeves 23 are fixedly connected with the outer tank 8 through the screw, so that the inner tank 1 and the outer tank 8 are fixedly connected, and in order to improve the heat insulation effect of the inner tank 1 and the outer tank 8, a heat insulation material can be filled between the inner tank 1 and the outer tank 8.

Example 3:

in summary, when in use, the connecting sleeve 18 is placed into the inner tank 1, the connecting plate 20 is fitted with the outer tank 8 and the upper surface of the inner tank 1, the cover plate 19 is covered on the connecting sleeve 18, the cover plate 19, the connecting plate 20 and the outer tank 8 are fixedly connected through screws, raw materials enter the inner tank 1 from the feeding pipe 9, three groups of external gears 5, stirring shafts 3 and stirring blades 4 are arranged and are arranged at equal intervals along the axial direction of the driving shaft 2, the driving shaft 2 is connected with an external motor, the driving shaft 2 is driven to rotate through the motor, the rotating disc 7 is driven to rotate through the driving shaft 2, the rotating disc 7 drives the three external gears 5 and the stirring shafts 3 to rotate around the driving shaft 2 together, and as the external gears 5 are meshed with the internal gears 6 and are fixedly connected with the connecting sleeve 18, when the external gears 5 rotate around the driving shaft 2, the external gears 5 are meshed with the internal gears 6 to cause the external gears 5 to rotate around their own axes, and further drive the stirring shafts 3 and the stirring blades 4 to rotate around their own axes, and finally the stirring blades 4 rotate around the axes of the driving shaft 2 while rotating around the axes of the stirring shafts 3, thereby improving the stirring efficiency.

In all the above-mentioned embodiments, the connection between two components may be selected from welding, bolt and nut fit connection, bolt or screw connection or other known connection methods according to actual situations, which are not repeated herein, and it is preferable to consider welding in the above description, although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims (7)

1. The utility model provides a hydroxypropyl methylcellulose is agitating unit for esterification production, includes the inner tank body (1), its characterized in that: the inner tank body (1) is provided with a stirring device and a heat preservation device, the stirring device comprises a driving shaft (2), a stirring shaft (3), stirring blades (4), an outer gear (5), an inner gear (6) and a rotating disk (7), the bottom of the driving shaft (2) is fixedly connected with the rotating disk (7), the outer gear (5) is rotatably arranged on the upper surface of the rotating disk (7), the outer gear (5) is meshed with the inner gear (6), the top of the stirring shaft (3) is fixedly connected with the outer gear (5), the bottom of the stirring shaft (3) penetrates through the outer gear (5) and the rotating disk (7) and is arranged below the rotating disk (7), a connecting mechanism is arranged between the stirring shaft (3) and the stirring blades (4), the heat preservation device comprises an outer tank body (8), a feeding pipe (9) and a discharging pipe (10), the feeding pipe (9) is arranged on one side of the inner tank body (1), the feeding pipe (9) is arranged below the rotating disk (7), the outer tank body (8) is sleeved on the outer tank body (8), the feeding pipe (9) is provided with the discharging pipe (9), a sliding plate (11) matched with the inner tank body (11), and the bottom of the sliding plate (11) is connected with the through groove (11), and the discharge pipe (10) penetrates through the outer tank body (8).

2. The stirring device for the esterification production of hypromellose according to claim 1, characterized in that: coupling mechanism includes connecting axle (13), connecting axle (13) set up the upper surface at stirring vane (4), and the top of connecting axle (13) slides and sets up inside (mixing) shaft (3), is equipped with first through-hole (14) on (mixing) shaft (3), is provided with on connecting axle (13) and first through-hole (14) complex second through-hole (15), and bolted connection is passed through in first through-hole (14) and second through-hole (15).

3. The stirring device for the esterification production of hypromellose according to claim 2, characterized in that: one side of the stirring shaft (3) is provided with a connecting plane (16), and the other side of the stirring shaft (3) is provided with a limiting groove (17).

4. The stirring device for the esterification production of hypromellose according to claim 1, characterized in that: the outer side cover of rotary disk (7) is equipped with adapter sleeve (18), and the inner wall of rotary disk (7) and adapter sleeve (18) rotates to be connected, the outer fringe of internal gear (6) and the inner wall fixed connection of adapter sleeve (18), and adapter sleeve (18) slide to set up in inner tank body (1).

5. The stirring device for the esterification production of hypromellose according to claim 4, wherein: the connecting device is characterized in that a cover plate (19) is arranged above the connecting sleeve (18), the driving shaft (2) is rotatably connected with the cover plate (19), a connecting plate (20) is arranged on the upper surface of the connecting sleeve (18), and the cover plate (19), the connecting plate (20) and the outer tank body (8) are detachably connected through screws.

6. The stirring device for the esterification production of hypromellose according to claim 1, characterized in that: all be equipped with ring flange (21) on inlet pipe (9) and discharging pipe (10), the bottom of the outer jar of body (8) is equipped with third through-hole (22), and the diameter of third through-hole (22) is greater than the diameter of ring flange (21), slides in third through-hole (22) and is equipped with to opening cover (23), is provided with two to opening cover (23), and the symmetry cover is established in the outside of discharging pipe (10), two to opening cover (23) all pass through screw detachably with the lower surface of the outer jar of body (8) and connect.

7. The stirring device for the esterification production of hypromellose according to claim 1, characterized in that: the two sides of the sliding plate (12) are both provided with sliding strips (24), and the outer tank body (8) is provided with a sliding groove (25) matched with the sliding strips (24).

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