CN217367509U - Multi-stage refining device for glyceryl triacetate - Google Patents

Abstract

The utility model discloses a multi-stage refining device for glyceryl triacetate, which comprises a device shell which is of a longitudinal hollow cylindrical structure as a whole, wherein a feeding pipe is arranged at the top end of the upper part of the device shell in a penetrating way, and a discharging pipe which is transversely distributed is arranged on the side surface of the bottom end of the device shell in a penetrating way; the filtering bin is arranged at the top end inside the device shell; the primary distillation bin is arranged inside the device shell below the filter bin, and the secondary distillation bin is arranged below the primary distillation bin. This multi-stage refining device of glyceryl triacetate adopts neotype structural design for the in-process that the device was using at first utilizes the filtration storehouse to filter, later distills step by step through one-level distillation storehouse and second grade distillation storehouse, finally obtains high-purity glyceryl triacetate product, and drives the clearance scraper blade through the axis of rotation and go on utilizing the filter screen to carry out filterable in-process, thereby clear up the impurity of collecting up on the surface, avoid the filter screen to appear blockking up the follow-up filter velocity and the effect of influence.

Description

Multi-stage refining device for glyceryl triacetate

Technical Field

The utility model relates to a glyceryl triacetate production technical field specifically is a glyceryl triacetate's multistage refining plant.

Background

Triacetin is a colorless, odorless oily liquid, and is used for the production of adhesives for cigarette filters, as well as in the fields of cosmetics, casting, medicine, and the like.

But in actual use, general glyceryl triacetate apparatus for producing only adopts one or twice refined flow when refined, because refined process is less, the condition that the purity is not enough can appear in the glyceryl triacetate that so produce to when utilizing the filter screen to filter impurity, thereby the mesh can be blockked up by impurity and influence subsequent filtration speed and effect.

Disclosure of Invention

An object of the utility model is to provide a multistage refining plant of glyceryl triacetate to it leads to the problem that finished product purity is not enough, filter screen blockage influences follow-up filter speed and effect less to propose the refining process in solving above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a multistage refining plant of glyceryl triacetate, is including the whole device shell that is vertical hollow cylinder structure, the device shell top is run through and is installed the inlet pipe, and the discharging pipe of installing transverse distribution is run through to the bottom side, still includes:

the filtering bin is arranged at the top end inside the device shell and is communicated with the feeding pipe; the inside one-level distillation storehouse that is provided with of device shell of crossing filter storehouse below, one-level distillation storehouse below is provided with the second grade distillation storehouse, and is provided with the cooling storehouse below the second grade distillation storehouse, the cooling storehouse with the discharging pipe intercommunication.

3 middle partition plates fixedly arranged on the inner wall of the device shell are distributed at equal intervals from top to bottom, the whole middle partition plate is of a funnel-shaped structure, the bottom of the middle partition plate is provided with a discharge hole of a hollow structure, and an electric control valve is arranged in the discharge hole; the heating devices are fixedly arranged outside the upper surfaces of the two middle clapboards below, and the temperature of the upper heating device is lower than that of the lower heating device.

A filter screen is fixedly installed in the filter bin and is located above the uppermost intermediate partition plate.

The device shell left and right sides fixed mounting has the collection pipeline, the collection pipeline top runs through inside the device shell.

Preferably, the laminating of filter screen top is provided with the clearance scraper blade that bilateral symmetry distributes, and the clearance scraper blade passes through the axis of rotation and constitutes revolution mechanic with the device shell, drives the clearance scraper blade through the axis of rotation and takes place to rotate to clear up the upper surface of filter screen.

Preferably, a driven bevel gear is coaxially and fixedly mounted at the top end of the rotating shaft, a driving bevel gear rotatably mounted on the device shell is connected to the side surface of the driven bevel gear in a meshed manner, and the driving bevel gear is driven to rotate by a motor, so that the driven bevel gear in meshed connection with the driving bevel gear drives the rotating shaft to rotate.

Preferably, two-layer about the collection pipeline bottom run through respectively has last condensing box and lower condensing box, just the collection pipeline top sets up to reverse funnel structure, utilizes the collection pipeline can collect the solution of distilling out and get into in the condensing box and the lower condensing box.

Preferably, the cleaning nozzles which are transversely distributed are fixedly installed in the device shell, and the cooling pipeline is fixedly installed in the cooling bin.

Preferably, wash the shower nozzle and constitute the connectivity with last condenser tank, just cooling tube constitutes the connectivity with lower condenser tank, and cooling tube wholly is heliciform structure, and the pure water of collecting in the last condenser tank can wash device shell inner wall through wasing the shower nozzle, and the solution of collecting in the lower condenser tank can get into the cooling tube and cool off the finished product.

Compared with the prior art, the beneficial effects of the utility model are that: this multi-stage refining device of glyceryl triacetate adopts neotype structural design for the device at first utilizes the filtration storehouse to filter at the in-process that uses, later distills step by step through one-level distillation storehouse and second grade distillation storehouse, finally obtains high-purity glyceryl triacetate product, and drive the clearance scraper blade through the axis of rotation and go on utilizing the filter screen to carry out filterable in-process, thereby clear up the impurity of collecting up on the surface, avoid the filter screen to appear blockking up the follow-up filter velocity and the effect of influence, its concrete content is as follows:

1. the cooperation between filter bin, one-level distillation storehouse, second grade distillation storehouse and the cooling bin is used and is at first utilized the inside filter screen in filter bin to filter impurity when production, utilizes the rotation of clearance scraper blade to clear up the filter screen surface this moment, avoids long-time use the condition that the filter screen blockked up to appear, later utilizes the distillation step by step in upper and lower two-layer distillation storehouse to get rid of the impurity that the inner part fuses to obtain the higher glyceryl triacetate product of purity.

2. Collect the pipeline, go up the condensing box, lower condensing box, the cooperation between washing shower nozzle and the cooling tube is used, and the moisture that distills out is through collecting the pipeline and getting into to carry out the condensation in the condensing box and be liquid water, later alright utilize to wash the shower nozzle and wash water blowout to device shell inner wall, reach the cyclic utilization of water resource to other foreign matter solution outside the play water of the inside collection of condensing tube can get into the cooling tube inner loop after the condensation and cool off the finished product down.

Drawings

Fig. 1 is a schematic view of the structure of the device housing of the present invention.

Fig. 2 is a schematic view of the top view cross-sectional structure of the device housing of the present invention.

Fig. 3 is a schematic view of the overlooking structure of the cleaning scraper of the present invention.

Fig. 4 is an enlarged schematic structural view of a portion a in fig. 1 according to the present invention.

Fig. 5 is a schematic view of the three-dimensional main view structure of the intermediate partition plate of the present invention.

In the figure: 1. a device housing; 2. a feed pipe; 3. a discharge pipe; 4. a filtering bin; 5. a primary distillation bin; 6. a secondary distillation bin; 7. a cooling bin; 8. a middle partition plate; 801. a discharge outlet; 9. a heating device; 10. a filter screen; 11. a collection pipe; 12. cleaning a scraper; 13. a rotating shaft; 14. a driven bevel gear; 15. a drive bevel gear; 16. an upper condensation tank; 17. a lower condensation tank; 18. cleaning the spray head; 19. and (6) cooling the pipeline.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.

Referring to fig. 1-5, the present invention provides a multi-stage refining apparatus for triacetin, which comprises an apparatus housing 1 having a longitudinal hollow cylindrical structure, a feeding pipe 2 installed on the top of the apparatus housing 1, and a discharging pipe 3 installed on the bottom side of the apparatus housing and having a transverse distribution, and further comprising: set up device shell 1 inside top, with the filtration storehouse 4 of inlet pipe 2 intercommunication, filter 1 inside one-level distillation storehouse 5 that is provided with of device shell of 4 below in storehouse, 5 below in one-level distillation storehouse are provided with second grade distillation storehouse 6, and 6 below in second grade distillation storehouse are provided with cooling bin 7, cooling bin 7 with discharging pipe 3 intercommunication.

3 middle partition plates 8 fixedly arranged on the inner wall of the device shell 1 are distributed at equal intervals from top to bottom, the whole middle partition plate 8 is of a funnel-shaped structure, the bottom of the middle partition plate 8 is provided with a discharge port 801 of a hollow structure, and an electric control valve is arranged in the discharge port 801; the outer parts of the upper surfaces of the lower two middle partition plates 8 are fixedly provided with heating devices 9, and the temperature of the upper heating device 9 is lower than that of the lower heating device 9.

A filter screen 10 is fixedly installed in the filter bin 4, and the filter screen 10 is positioned above the uppermost intermediate partition plate 8. The device shell 1 left and right sides fixed mounting has collection pipeline 11, collection pipeline 11 top runs through inside device shell 1.

Filter screen 10 top laminating is provided with bilateral symmetry's clearance scraper blade 12, and clearance scraper blade 12 constitutes revolution mechanic through axis of rotation 13 and device shell 1, the coaxial fixed mounting in axis of rotation 13 top has driven bevel gear 14, driven bevel gear 14 side meshing is connected with and rotates the drive bevel gear 15 of installation with device shell 1, upper and lower two-layer collection pipeline 11 bottom has last condensing box 16 and lower condensing box 17 through connection respectively, and collection pipeline 11 top sets up to reverse funnel structure, the inside fixed mounting of device shell 1 has transverse distribution's washing shower nozzle 18, and the inside fixed mounting of cooling chamber 7 has cooling tube 19, wash shower nozzle 18 and last condensing box 16 and constitute the connectivity, and cooling tube 19 constitutes the connectivity with lower condensing box 17, and cooling tube 19 wholly is the heliciform structure.

When the device is used, firstly, glyceryl triacetate to be refined is put into a shell 1 of the device from a feeding pipe 2 above, firstly, solid impurities contained in the glyceryl triacetate are filtered through a filter screen 10 in a filter bin 4, an external motor drives an internal driving bevel gear 15 to rotate while filtering, the driving bevel gear 15 drives a rotating shaft 13 to rotate by using a driven bevel gear 14 meshed with the driving bevel gear 15 while rotating, finally, a cleaning scraper 12 rotates to clean the upper surface of the filter screen 10, the blockage is avoided, the filtered solution enters a primary distillation bin 5 through an intermediate partition plate 8 and a discharge port 801, at the moment, the solution is heated by a corresponding heating device 9 at the temperature of 100 ℃, so that water in the solution is evaporated into steam, the steam enters an upper condensation box 16 through a collecting pipeline 11, the solution after the water evaporation is continuously fed into a secondary distillation bin 6 to be evaporated again, at the evaporation temperature of more than 100 ℃, the solution is used for evaporating other solutions except water, the solution evaporated by dissolving finally enters the lower condensation box 17 for storage, and a finished product obtained after the re-evaporation is finished enters the cooling bin 7 and is finally discharged from the discharge pipe 3.

The solution in the lower condensation tank 17 circulates in the cooling pipe 19 to cool the obtained finished glyceryl triacetate, and after the use of the device is finished, the purified water in the upper condensation tank 16 is sprayed out by the cleaning spray head 18 to clean the inner wall of the device shell 1.

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

Claims (6)

1. The utility model provides a multistage refining plant of glyceryl triacetate, is device shell (1) of vertical hollow cylinder structure including whole, device shell (1) top is run through and is installed inlet pipe (2), and the bottom side is run through and is installed discharging pipe (3) of transverse distribution, and its characterized in that still includes:

the filtering bin (4) is arranged at the top end inside the device shell (1) and is communicated with the feeding pipe (2); a primary distillation bin (5) is arranged in the device shell (1) below the filtering bin (4), a secondary distillation bin (6) is arranged below the primary distillation bin (5), a cooling bin (7) is arranged below the secondary distillation bin (6), and the cooling bin (7) is communicated with the discharging pipe (3);

3 middle partition plates (8) fixedly installed on the inner wall of the device shell (1) are distributed at equal intervals from top to bottom, the whole middle partition plate (8) is of a funnel-shaped structure, a discharge hole (801) which is of a hollow structure is formed in the bottom of the middle partition plate (8), and an electric control valve is installed in the discharge hole (801); the outer parts of the upper surfaces of the lower two middle partition plates (8) are fixedly provided with heating devices (9), and the temperature of the upper heating device (9) is lower than that of the lower heating device (9);

a filter screen (10) is fixedly arranged in the filter bin (4), and the filter screen (10) is positioned above the uppermost intermediate partition plate (8);

the device shell (1) left and right sides fixed mounting has collection pipeline (11), collection pipeline (11) top is run through inside device shell (1).

2. The multi-stage refining apparatus for triacetin according to claim 1, characterized in that: the cleaning scrapers (12) which are symmetrically distributed in the left and right directions are attached to the upper portion of the filter screen (10), and the cleaning scrapers (12) and the device shell (1) form a rotating structure through a rotating shaft (13).

3. The multi-stage refining apparatus for triacetin according to claim 2, characterized in that: the top end of the rotating shaft (13) is coaxially and fixedly provided with a driven bevel gear (14), and the side surface of the driven bevel gear (14) is in meshed connection with a driving bevel gear (15) rotatably arranged on the device shell (1).

4. A multistage refining apparatus for triacetin according to any one of claims 1 to 3, characterized in that: two-layer from top to bottom collection pipeline (11) bottom run through respectively and be connected with last condensing box (16) and lower condensing box (17), just collection pipeline (11) top sets up to reverse funnel structure.

5. A multistage refining apparatus for triacetin according to any one of claims 1 to 3, characterized in that: the device is characterized in that cleaning spray heads (18) which are transversely distributed are fixedly arranged in the device shell (1), and cooling pipelines (19) are fixedly arranged in the cooling bin (7).

6. The multi-stage refining apparatus for triacetin according to claim 5, characterized in that: the cleaning spray head (18) and the upper condensation box (16) form a communicating structure, the cooling pipeline (19) and the lower condensation box (17) form a communicating structure, and the cooling pipeline (19) is integrally in a spiral structure.

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