CN218280585U - Distillation device is used in preparation of methyl squarate - Google Patents

Abstract

The utility model relates to a distillation plant technical field specifically is a distillation plant is used in preparation of methyl squaraine, including landing leg, heating bucket and sprue, be equipped with rabbling mechanism in the heating bucket, the rabbling mechanism includes the motor, and the motor is fixed in the bottom of heating bucket, and the motor output end is equipped with the pivot, and the pivot surface is equipped with evenly distributed's connecting rod, and the one end of connecting rod is equipped with the stirring leaf, and the stirring leaf is on a parallel with the pivot, stirring leaf and heating bucket inner wall sliding connection. This application sets up rabbling mechanism, make heat evenly spread in heating barrel, clear up the heating barrel inner wall, solved the heating barrel in the heating stage, the cold and hot distribution of inside solution is inhomogeneous, the liquid level descends and leads to the attachment to depend on the heating barrel inner wall, the heating barrel heat-conduction is obstructed, lead to the solution slow problem that heaies up, the inside thermal even diffusion of solution of heating barrel has been realized, improve the heat conduction efficiency of heating barrel, improve the heating effect of heating barrel.

Description

Distillation device is used in preparation of methyl squarate

Technical Field

The application relates to the technical field of distillation devices, in particular to a distillation device for preparing methyl squarate.

Background

The preparation of methyl squarate adopts squaric acid, methanol and methylamine alcohol solution as reaction raw materials, synthesizes a mixture by controlling reaction temperature and feeding sequence, and then separates the mixture by a distiller to extract a target product.

The distiller generally comprises a distillation barrel, a heater and a condenser, wherein the mixture solution is placed in the distillation barrel, the heater arranged on the side edge or the lower end of the distillation barrel is used for heating the solution, the generated steam separates low-boiling-point substances out of the solution, and the condenser condenses the steam to complete the extraction of the low-boiling-point substances.

In view of the above-mentioned related technologies, the inventor of the present application finds that at least the following technical problems exist in the process of implementing the technical solution of the present invention: the distiller adopts a bottom or side heating method, the cold and heat distribution in the solution is not uniform before the solution reaches the boiling point, and after the liquid level of the solution is reduced, the residual attachments on the inner wall of the distiller influence heat conduction, so that the temperature rise process of distillation is slow, the heating efficiency is low, and extra energy consumption is caused.

Disclosure of Invention

The utility model provides a distillation plant is used in preparation of squaric acid methyl methylamine has solved the distiller and has heated the cold and hot distribution of stage solution inhomogeneous, and the liquid level descends and leads to the attachment to depend on the distillation retort inner wall, influences the distillation retort heat conduction, and the slow problem of solution intensification has realized the thermal even diffusion of the inside solution of distiller, improves distiller heat conduction efficiency, improves the heating effect of distiller.

The application provides a distillation plant is used in preparation of methyl squarate, including landing leg, heating barrel and sprue, be equipped with rabbling mechanism in the heating barrel, the rabbling mechanism includes the motor, the bottom at the heating barrel is fixed to the motor, the motor output is equipped with the pivot, the pivot surface is equipped with evenly distributed's connecting rod, the one end of connecting rod is equipped with the stirring leaf, the stirring leaf is on a parallel with the pivot, stirring leaf and heating barrel inner wall sliding connection.

Further, the stirring leaf comprises connecting plate, fixture block and scraper blade, connecting plate one end is fixed on the connecting rod, the other end block of connecting plate is connected with the fixture block, fixture block one end is equipped with the scraper blade, the one end and the heating barrel inner wall sliding connection of scraper blade.

Furthermore, one end of the scraper connected with the heating barrel is Y-shaped.

Further, the upper end and the lower extreme of connecting plate all are equipped with solid fixed ring, both ends gu the fixed ring internal surface all is equipped with a plurality of branches, it is a plurality of branch all with pivot fixed connection.

Further, heating barrel upper end is equipped with condensation mechanism, condensation mechanism includes the mount, the upper end at the heating barrel is fixed to the mount, the mount upper end is equipped with the condensation bucket, condensation bucket outside lower extreme is equipped with the inlet tube, condensation bucket outside upper end is equipped with the outlet pipe, the inside condenser pipe that is equipped with of condensation bucket, condenser pipe one end is equipped with the connector, connector one end and heating barrel intercommunication.

One or more technical solutions provided by the present application have at least the following technical effects or advantages:

1. owing to adopted rabbling mechanism, stirring through the stirring leaf, make even the diffusion in the heating barrel of heat, in the stirring, utilize the sliding friction of stirring leaf and heating barrel inner wall, with heating barrel inner wall clean up, it is inhomogeneous to have solved the cold and hot distribution of distiller solution in the heating stage, the liquid level descends and leads to the attachment to depend on the distillation barrel inner wall, influence distillation barrel heat conduction, the slow problem of solution intensification, the thermal even diffusion of the inside solution of distiller has been realized, improve distiller heat conduction efficiency, improve the heating effect of distiller.

2. Due to the fact that the fixing ring is adopted, when the stirring blade rotates, the fixing ring can enable the stirring blade to stably rotate, the problem that the stirring blade shakes during rotation in the heating barrel is solved, stable rotation of the stirring blade is achieved, and working efficiency of the stirring mechanism is improved.

3. Due to the adoption of the condensation mechanism, the cooling water inlet pipe enters the condensation barrel and is discharged by the water outlet pipe, so that the heat inside the condensation barrel is layered, the problem that the pipe wall is broken due to overlarge temperature difference inside and outside the condensation pipe is solved, and the effective condensation of the condensation pipe on internal substances is realized.

Drawings

FIG. 1 is a schematic overall structure diagram in an embodiment of the present application;

FIG. 2 is a schematic structural diagram of a stirring mechanism in an embodiment of the present application;

FIG. 3 is a schematic structural diagram of a stirring vane in an embodiment of the present application;

FIG. 4 is an enlarged view at A in FIG. 2;

fig. 5 is a schematic structural diagram of a condensing mechanism in an embodiment of the present application.

In the figure: 1. a support leg; 2. heating the barrel; 3. a stirring mechanism; 31. a motor; 32. a rotating shaft; 33. a connecting rod; 34. stirring blades; 341. a connecting plate; 342. a clamping block; 343. a squeegee; 35. a fixing ring; 36. a strut; 4. a condensing mechanism; 41. a fixed mount; 42. a condensing barrel; 43. a water inlet pipe; 44. a water outlet pipe; 45. a condenser tube; 46. a connector; 5. and (4) an injection port.

Detailed Description

The application discloses distillation plant is used in preparation of methyl ester of squaric acid methylamine, set up rabbling mechanism 3, in heating bucket 2 heating solution, use stirring leaf 34 to stir solution, make the inside heat distribution of solution even, utilize the attachment of the 2 inner walls of heating bucket of scraper 343 removal on stirring leaf 34 surface, it is in the heating stage to have solved heating bucket 2, the cold and hot distribution of solution is inhomogeneous, the liquid level descends and leads to the attachment to depend on heating bucket 2 inner walls, influence 2 heat conduction of heating bucket, the slow problem of solution intensification, the thermal even diffusion of heating bucket 2 inside solutions has been realized, improve 2 heat conduction efficiency of heating bucket, improve the heating effect of heating bucket 2.

In order to better understand the technical scheme, the technical scheme is described in detail in the following with reference to the accompanying drawings 1-5 of the specification and a specific embodiment.

Referring to fig. 1, the application discloses a distillation device for preparing methyl squarate, which comprises supporting legs 1, a heating barrel 2, a stirring mechanism 3, a condensing mechanism 4 and a feeding port 5. The heating barrel 2 is fixed on the upper end of the supporting leg 1, and the edge position of the upper surface of the heating barrel 2 is provided with a filling opening 5. The condensing mechanism 4 is installed at the upper end of the heating tub 2. The stirring mechanism 3 is installed inside the heating tub 2. The heating barrel 2 heats the solution in the barrel by utilizing the built-in heater on the side surface, and in the heating process, the stirring mechanism 3 stirs the solution, so that the heat in the solution can be uniformly distributed, and the inner wall of the heating barrel 2 is cleaned while the heat conduction efficiency is ensured. Fresh reactant is added during distillation via injection port 5. The distilled low boiling point substance enters a condensing mechanism 4 for condensation and extraction.

Referring to fig. 2, 3 and 4, the stirring mechanism 3 includes a motor 31, a rotating shaft 32, a connecting rod 33, a stirring blade 34, a connecting plate 341, a fixture 342, a scraper 343, a fixing ring 35 and a strut 36. The motor 31 is fixed at the lower end of the heating barrel 2, and one end of an output shaft of the motor 31 is fixedly connected with a rotating shaft 32. The upper end of the rotating shaft 32 is inserted into the heating barrel 2, and the upper end of the rotating shaft 32 penetrates through the lower surface of the heating barrel 2. A plurality of connecting rods 33 are fixedly connected to the outer side of one end of the rotating shaft 32 extending into the heating barrel 2. A plurality of connecting rods 33 divide into two sets ofly, and a set of connecting rod 33 distributes in the upper end of pivot 32, and another group of connecting rod 33 distributes in the lower extreme of pivot 32, a plurality of stirring leaves 34 of fixedly connected with between connecting rod 33 of upper end and the connecting rod 33 of lower extreme, a plurality of stirring leaves 34 are parallel to each other with pivot 32. A plurality of stirring leaves 34 are fixedly connected on a fixed ring 35, a plurality of supporting rods 36 are fixedly connected on the inner side of the fixed ring 35, and one ends of the supporting rods 36 are fixedly connected with the rotating shaft 32. The stirring vane 34 is composed of a connecting plate 341, a block 342 and a scraper 343. One end of the connecting plate 341 is fixedly connected to the connecting rod 33, and the other end is engaged with the engaging block 342. One end of the clamping block 342 is fixedly connected with a scraping plate 343, and the scraping plate 343 is slidably connected with the inner wall of the heating barrel 2. The one end that scraper 343 and heating barrel 2 contact is the Y type, and the corotation and the reversal of scraper 343 do not all influence the clearance effect of scraper 343 to heating barrel 2 inner wall. The output shaft of the motor 31 rotates, the rotating shaft 32 rotates along with the output shaft of the motor 31, the stirring blades 34 rotate along with the rotation of the rotating shaft 32, the solution in the heating barrel 2 is heated after the heating barrel is started, and the stirring blades 34 stir the solution during heating. With the stirring of the stirring vanes 34, the heat inside the solution is uniformly distributed, enhancing the efficiency of heat conduction. Simultaneously, the liquid level of solution can reduce in distillation process, and partial attachment will depend on the inner wall at heating barrel 2, and the outside heat of separation influences the heating effect of heating barrel 2 to solution to heating barrel 2 internal conduction, and scraper blade 343 follows connecting plate 341 and slides in the inner wall department of heating barrel 2, clears away the attachment of 2 inner walls of heating barrel, improves the heat conduction efficiency of heating barrel 2, makes solution can rapid heating up.

Referring to fig. 5, the condensing mechanism 4 includes a fixing frame 41, a condensing tub 42, a water inlet pipe 43, a water outlet pipe 44, a condensing pipe 45, and a connector 46. The fixing frame 41 is installed at the upper end of the heating tub 2, and the condensing tub 42 is fixed at the upper end of the fixing frame 41. The water inlet pipe 43 is fixed at the lower end of the outer side of the condensation barrel 42, and the water outlet pipe 44 is fixed at the upper end of the outer side of the condensation barrel 42. The water inlet pipe 43 and the water outlet pipe 44 are both communicated with the condensation barrel 42. The condensed water enters the condensation barrel 42 through the water inlet pipe 43 and is discharged out of the condensation barrel 42 through the water outlet pipe 44, so that the temperature inside the condensation barrel 42 is in a low temperature state. The condensation pipe 45 is fixed inside the condensation tub 42 in a spiral shape, and the condensation pipe 45 is immersed in the condensed water. The upper end of the condensation pipe 45 penetrates through the upper surface of the condensation barrel 42, one end of the condensation pipe 45 extending out of the condensation barrel 42 is fixedly connected with a connector 46, and the condensation pipe 45 is communicated with the connector 46. The connector 46 is inserted into the heating barrel 2, and the connector 46 is communicated with the heating barrel 2. In the distillation process, the low boiling point substance in the heating barrel 2 is vaporized and enters the connector 46 and then enters the interior of the condensation pipe 45. The department of inlet tube 43 lets in the comdenstion water, and the comdenstion water is discharged by outlet pipe 44, makes the comdenstion water at condensation bucket 42 inner loop, guarantees that the comdenstion water in the condensation bucket 42 maintains at microthermal state, and near the comdenstion water of outlet pipe 44 is owing to lead the steam in the contact condenser pipe 45 first, and the temperature will be higher than near the temperature in inlet tube 43, and it is big to avoid the inside and outside difference in temperature of condenser pipe 45, leads to the condition of pipe wall fracture to take place.

The working principle of the embodiment of the application is as follows: open motor 31, motor 31 output shaft drive pivot 32 rotates, when pivot 32 rotates, be fixed in the solution of pivot 32 on stirring leaf 34 in to heating barrel 2 and stir, accelerate the inside thermal diffusion of solution, when stirring leaf 34 stirs solution, scraper blade 343 and the 2 inner walls sliding friction of heating barrel, clear away the material that 2 inner walls of heating barrel depend on, steam is inside by connector 46 entering condenser pipe 45, condensation through condenser barrel 42, the preparation of the other side's acid methylamine methyl ester is accomplished.

Although embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the application, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. The utility model provides a distillation plant is used in preparation of methyl methamidolate squarate, includes landing leg (1), heating bucket (2) and sprue (5), its characterized in that: be equipped with rabbling mechanism (3) in heating bucket (2), rabbling mechanism (3) include motor (31), the bottom at heating bucket (2) is fixed in motor (31), motor (31) output is equipped with pivot (32), pivot (32) surface is equipped with evenly distributed's connecting rod (33), the one end of connecting rod (33) is equipped with stirring leaf (34), stirring leaf (34) are on a parallel with pivot (32), stirring leaf (34) and heating bucket (2) inner wall sliding connection.

2. The distillation apparatus for preparing methylamine methyl squarate according to claim 1, wherein: the stirring blade (34) consists of a connecting plate (341), a clamping block (342) and a scraping plate (343), one end of the connecting plate (341) is fixed on the connecting rod (33), the other end of the connecting plate (341) is connected with the clamping block (342) in a clamping mode, one end of the clamping block (342) is provided with the scraping plate (343), and one end of the scraping plate (343) is connected with the inner wall of the heating barrel (2) in a sliding mode.

3. The distillation device for preparing methyl squarate according to claim 2, wherein the distillation device comprises: one end of the scraper plate (343) in contact with the heating barrel (2) is Y-shaped.

4. The distillation apparatus for preparing methylamine methyl squarate according to claim 2, wherein: the upper end and the lower extreme of connecting plate (341) all are equipped with solid fixed ring (35), both ends gu fixed ring (35) internal surface all is equipped with a plurality of branches (36), a plurality of branch (36) all with pivot (32) fixed connection.

5. The distillation device for preparing methyl squarate according to claim 1, wherein the distillation device comprises: heating bucket (2) upper end is equipped with condensation mechanism (4), condensation mechanism (4) are including mount (41), the upper end at heating bucket (2) is fixed in mount (41), mount (41) upper end is equipped with condensation bucket (42), condensation bucket (42) outside lower extreme is equipped with inlet tube (43), condensation bucket (42) outside upper end is equipped with outlet pipe (44), inside condenser pipe (45) that is equipped with of condensation bucket (42), condenser pipe (45) one end is equipped with connector (46), connector (46) one end and heating bucket (2) intercommunication.

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