High-purity ethyl acetate purification device

Abstract

The utility model discloses a high-purity ethyl acetate purification device which comprises a purification box and a purification support, the purification box is installed on the purification support, and a stirring purification structure and a discharging structure are installed on the purification box; the utility model relates to the technical field of ethyl acetate production, through multi-section stirring and multi-angle auxiliary stirring in the horizontal direction, the stirring uniformity and efficiency are improved, and by utilizing the floating of two pairs of lifting air bags on the inner side of the purification box, the layering can be automatically carried out according to the density and components of liquid. The automatic layering mode can reduce manual intervention and improve working efficiency and accuracy.

Description

Technical Field

[0001] The utility model relates to the technical field of ethyl acetate production, in particular to a high-purity ethyl acetate purification device. Background Art

[0002] Ethyl acetate is an important chemical raw material with a boiling point of 77.1°C. It is miscible with most organic solvents such as alcohol, ether, chloroform, acetone, benzene, etc. It has excellent solubility, is less toxic, and evaporates quickly. It is one of the most widely used fatty acid esters and an important solvent in industry. In industrial applications, the product purity of ethyl acetate, especially the water content, is usually subject to higher requirements. Therefore, the refining process technology of ethyl acetate products with a water content of ≤0.5wt% is taken seriously. Because ethyl acetate will not mix with water in any ratio (ethyl acetate and water are slightly soluble), it is inevitable to have waste liquid in the industries of organic chemical industry, flavors and fragrances, paints, and medicine. No matter from the perspective of resource recovery and environmental integration, the waste liquid needs to be processed, and the purpose of extracting and separating the ethyl acetate and water mixture is used. It is not difficult to conclude that an extracting and separating device is indispensable in the implementation of the extracting and separating process.

[0003] In the process of extraction and separation, it is usually necessary to first add an extractant and fully mix it with a solvent containing ethyl acetate and then let it stand to wait for stratification. Because the density of ethyl acetate is smaller than that of water, it floats on the water surface after separation, and then the upper layer of liquid after stratification is extracted to complete the separation of ethyl acetate. However, when the extraction device mixes the solution and the extractant, the motor drives the stirring rod to rotate, and the stirring rod drives the stirring plate to rotate. The stirring trajectory is relatively monotonous, which is not conducive to the rapid and sufficient mixing of the solution and the extractant, and reduces the efficiency of extraction, dehydration and purification. In view of this, in-depth research was conducted on the above-mentioned problems, and this case was generated. Utility Model Content

[0004] To achieve the above objectives, the utility model is implemented through the following technical solutions: a high-purity ethyl acetate purification device, comprising: a purification box and a purification bracket, the purification box is installed on the purification bracket, and the purification box is installed with a stirring purification structure and a discharge structure;

[0005] The stirring and purifying structure comprises: a plurality of stirring blades, a stirring rotating disc, a stirring driving machine, a stirring driving gear, a stirring set rack, a pair of stirring sealing bearing blocks, a stirring inner shaft tube, a stirring transmission helical gear, a stirring driving helical gear, a stirring inner driving machine, a stirring inner gear box and a stirring rotating shaft;

[0006] The purification box is provided with a stirring tank, the stirring rotating disc is installed on the stirring tank through a pair of stirring sealing bearing blocks, a driving groove is provided on the stirring tank, the stirring set rack is installed on the stirring rotating disc, the stirring driving machine is installed on the purification box, the stirring driving gear is installed on the driving end of the stirring driving machine, and the stirring driving gear and the stirring set rack are gear-engaged, the stirring inner shaft tube is inserted on the stirring rotating disc through a bearing, the stirring rotating shaft is inserted on the stirring rotating disc and the purification bracket through a bearing, the stirring transmission bevel gear is installed on the stirring inner shaft tube, the stirring driving bevel gear is installed on the stirring rotating shaft, and the stirring driving bevel gear and the stirring transmission bevel gear are gear-engaged, the stirring inner gear box is sleeved on the stirring rotating shaft, the driving end of the stirring inner driving machine is connected to the stirring inner gear box, and a plurality of stirring blades are evenly installed on the stirring inner shaft tube and the stirring rotating shaft;

[0007] It should be noted that, in the above, the operation of the stirring driving machine drives the bidirectional stirring driving gear at the driving end of the stirring driving machine to rotate, and the stirring driving gear drives the stirring set rack meshing with the gear to rotate, and the stirring set rack drives the stirring rotating disc thereon, so that the stirring rotating disc rotates along the inner side of the stirring tank through a pair of stirring sealing bearing blocks, and at the same time, the stirring rotating disc drives the stirring inner shaft tube thereon to rotate, so that the stirring rotating disc rotates along the stirring rotating shaft, thereby achieving stable rotation, and at the same time, the operation of the stirring inner driving machine drives the stirring inner gear box to operate, and drives the stirring rotating shaft inside it to rotate, thereby achieving multi-stage stirring, and at the same time, the stirring inner shaft tube drives the stirring transmission bevel gear on it to mesh and rotate with the stirring drive bevel gear gear, thereby achieving multi-angle auxiliary stirring of the stirring inner shaft tube in the horizontal direction inside the purification box, thereby achieving stable multi-angle horizontal rotation stirring and mixing.

[0008] Preferably, the discharge structure comprises: a lifting support plate, two pairs of lifting airbags, a lifting drainage shaft tube, a lifting J-shaped tube, a collection box and a collection pump;

[0009] The collection box is installed on the purification bracket, the lifting support plate is movably arranged on the inner side of the purification box, two pairs of lifting airbags are installed in parallel on the lifting support plate, the lifting drainage shaft tube is installed on the lifting support plate, the lifting J-shaped tube is inserted on the purification box, and the lifting J-shaped tube is sleeved on the outer side of the lifting drainage shaft tube, and the collection pump is installed on the lifting J-shaped tube and the collection box;

[0010] It should be noted that, in the above, two pairs of lifting air bags float on the inner side of the purification box, the two pairs of lifting air bags drive the lifting support plate thereon, through the liquid stratification inside the purification box, the two pairs of lifting air bags float at the liquid stratification, and the lifting support plate drives the lifting drainage shaft tube thereon, so that the lifting drainage shaft tube is stably lifted and lowered on the inner side of the lifting J-tube, and the lifting drainage shaft tube and the liquid inside the lifting J-tube are drained to the inner side of the collection box through the collecting pump.

[0011] Preferably, the lifting and drainage shaft tube is provided with a plurality of lifting sliders, the inner side of the lifting J-shaped tube is provided with a plurality of lifting slideways, and the plurality of lifting sliders are movably inserted into the inner sides of the plurality of lifting slideways respectively.

[0012] Preferably, the purification box is provided with an electric heating rod.

[0013] Preferably, a temperature sensor is provided on the purification box.

[0014] Preferably, a pressure relief valve is provided on the purification box. Beneficial Effects

[0015] The utility model provides a high-purity ethyl acetate purification device. It has the following beneficial effects: the high-purity ethyl acetate purification device improves the uniformity and efficiency of stirring through multi-stage stirring and multi-angle auxiliary stirring in the horizontal direction, and utilizes two pairs of lifting air bags floating inside the purification box to automatically stratify according to the density and composition of the liquid. This automatic stratification method can reduce manual intervention and improve work efficiency and accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front view and cross-sectional schematic diagram of a high-purity ethyl acetate purification device described in the utility model.

[0017] Figure 2 It is a top view and cross-sectional schematic diagram of a high-purity ethyl acetate purification device described in the utility model.

[0018] Figure 3 for Figure 1 A partial enlarged view of "A".

[0019] In the figure: 1. purification box; 2. purification bracket; 3. stirring blade; 4. stirring rotating disk; 5. stirring driving machine; 6. stirring driving gear; 7. stirring set rack; 8. stirring sealing bearing block; 9. stirring inner shaft tube; 10. stirring transmission bevel gear; 11. stirring drive bevel gear; 12. stirring inner driving machine; 13. stirring inner gear box; 14. stirring rotating shaft; 15. lifting support plate; 16. lifting airbag; 17. lifting drainage shaft tube; 18. lifting J-type tube; 19. collecting box; 20. collecting pump. DETAILED DESCRIPTION

[0020] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0021] Through the personnel in this field, all the electrical components in this case are connected to their corresponding power supplies through wires, and appropriate controllers and encoders should be selected according to actual conditions to meet the control requirements. The specific connection and control sequence should refer to the following working principle, and the electrical connection between the electrical components is completed in the order of working in sequence. The detailed connection means are well-known technologies in this field. The following mainly introduces the working principles and processes, and no longer explains the electrical control. Example

[0022] The present invention is described in detail below in conjunction with the accompanying drawings. Figure 1-3As shown, the purification box 1 is installed on the purification bracket 2, and the purification box 1 is equipped with a stirring purification structure and a discharge structure; the stirring purification structure includes: a plurality of stirring blades 3, a stirring rotating disc 4, a stirring driving machine 5, a stirring driving gear 6, a stirring set rack 7, a pair of stirring sealing bearing blocks 8, a stirring inner shaft tube 9, a stirring transmission bevel gear 10, a stirring driving bevel gear 11, a stirring inner driving machine 12, a stirring inner gear box 13 and a stirring rotating shaft 14; a stirring tank is opened on the purification box 1, and the stirring rotating disc 4 is installed on the stirring tank through a pair of stirring sealing bearing blocks 8, and a driving groove is opened on the stirring tank. The stirring set rack 7 is installed on the stirring rotating disc 4, the stirring driving machine 5 is installed on the purification box 1, the stirring driving gear 6 is installed on the driving end of the stirring driving machine 5, and the stirring driving gear 6 is meshed with the stirring set rack 7, the stirring inner shaft tube 9 is inserted on the stirring rotating disc 4 through a bearing, the stirring rotating shaft 14 is inserted on the stirring rotating disc 4 and the purification bracket 2 through a bearing, the stirring transmission bevel gear 10 is installed on the stirring inner shaft tube 9, the stirring driving bevel gear 11 is installed on the stirring rotating shaft 14, and the stirring driving bevel gear 11 and the stirring transmission bevel gear 11 are connected to the stirring transmission bevel gear 11. The gears 10 are meshed with each other, the stirring internal gear box 13 is mounted on the stirring rotating shaft 14, the driving end of the stirring internal driving machine 12 is connected to the stirring internal gear box 13, and a plurality of stirring blades 3 are evenly installed on the stirring internal shaft tube 9 and the stirring rotating shaft 14; the discharge structure includes: a lifting support plate 15, two pairs of lifting air bags 16, a lifting drainage shaft tube 17, a lifting J-shaped tube 18, a collecting box 19 and a collecting pump 20; the collecting box 19 is installed on the purification bracket 2, the lifting support plate 15 is movably arranged on the inner side of the purification box 1, and the two pairs of lifting air bags 16 are installed in parallel on the lifting support The lifting and drainage shaft tube 17 is installed on the lifting support plate 15, the lifting J-tube 18 is inserted on the purification box 1, and the lifting J-tube 18 is sleeved on the outer side of the lifting and drainage shaft tube 17, and the collecting pump 20 is installed on the lifting J-tube 18 and the collecting box 19; the lifting and drainage shaft tube 17 is provided with a plurality of lifting sliders, and the inner side of the lifting J-tube 18 is provided with a plurality of lifting slides, and a plurality of the lifting sliders are movably inserted on the inner sides of a plurality of the lifting slides respectively; the purification box 1 is provided with an electric heating rod; the purification box 1 is provided with a temperature sensor; the purification box 1 is provided with a pressure relief valve.

[0023] According to the attached Figure 1-3It is concluded that the stirring driving machine 5 is operated to drive the bidirectional stirring driving gear 6 at the driving end of the stirring driving machine 5 to rotate, and the stirring driving gear 6 drives the stirring set rack 7 meshing with the gear to rotate, and the stirring set rack 7 drives the stirring rotating disc 4 thereon, so that the stirring rotating disc 4 rotates along the inner side of the stirring tank through a pair of stirring sealing bearing blocks 8, and at the same time, the stirring rotating disc 4 drives the stirring inner shaft tube 9 thereon to rotate, so that the stirring rotating disc 4 rotates along the stirring rotating shaft 14, thereby achieving stable rotation, and at the same time, the stirring inner driving machine 12 is operated to drive the stirring inner gear box 13 to operate, and drive the stirring rotating shaft 14 inside thereof to rotate, thereby achieving multi-stage stirring, and at the same time, the stirring inner shaft tube 9 drives the stirring on it The mixing transmission bevel gear 10 rotates in meshing engagement with the mixing drive bevel gear 11, thereby achieving multi-angle auxiliary mixing of the mixing inner shaft tube 9 in the horizontal direction inside the purification box 1, thereby achieving stable multi-angle horizontal rotation mixing and mixing; two pairs of lifting air bags 16 float on the inner side of the purification box 1, and the two pairs of lifting air bags 16 drive the lifting support plate 15 thereon, through the liquid stratification inside the purification box 1, the two pairs of lifting air bags 16 float at the liquid stratification, and the lifting support plate 15 drives the lifting drainage shaft tube 17 thereon, so that the lifting drainage shaft tube 17 is stably lifted and lowered on the inner side of the lifting J-tube 18, and the lifting drainage shaft tube 17 and the liquid inside the lifting J-tube 18 are drained to the inner side of the collecting box 19 through the collecting pump 20.

[0024] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-purity ethyl acetate purification device, comprising: a purification box and a purification support, characterized in that: The purification box is installed on the purification bracket, and a stirring purification structure and a discharge structure are installed on the purification box; The stirring and purifying structure comprises: a plurality of stirring blades, a stirring rotating disc, a stirring driving machine, a stirring driving gear, a stirring set rack, a pair of stirring sealing bearing blocks, a stirring inner shaft tube, a stirring transmission helical gear, a stirring driving helical gear, a stirring inner driving machine, a stirring inner gear box and a stirring rotating shaft; The purification box is provided with a stirring tank, the stirring rotating disc is installed on the stirring tank through a pair of stirring sealing bearing blocks, the stirring tank is provided with a driving tank, the stirring set rack is installed on the stirring rotating disc, the stirring driving machine is installed on the purification box, the stirring driving gear is installed on the driving end of the stirring driving machine, and the stirring driving gear and the stirring set rack are gear-engaged, the stirring inner shaft tube is inserted on the stirring rotating disc through a bearing, the stirring intermediate rotating shaft is inserted on the stirring rotating disc and the purification bracket through a bearing, the stirring transmission bevel gear is installed on the stirring inner shaft tube, the stirring driving bevel gear is installed on the stirring intermediate rotating shaft, and the stirring driving bevel gear and the stirring transmission bevel gear are gear-engaged, the stirring internal gear box is sleeved on the stirring intermediate rotating shaft, the driving end of the stirring internal driving machine is connected to the stirring internal gear box, and a plurality of stirring blades are evenly installed on the stirring inner shaft tube and the stirring intermediate rotating shaft.

2. A high-purity ethyl acetate purification device according to claim 1, characterized in that, The discharge structure comprises: a lifting support plate, two pairs of lifting air bags, a lifting drainage shaft tube, a lifting J-shaped tube, a collection box and a collection pump; The collecting box is installed on the purification bracket, the lifting support plate is movably arranged on the inner side of the purification box, two pairs of lifting airbags are installed in parallel on the lifting support plate, the lifting drainage axis tube is installed on the lifting support plate, the lifting J-tube is inserted on the purification box, and the lifting J-tube is sleeved on the outer side of the lifting drainage axis tube, and the collecting pump is installed on the lifting J-tube and the collecting box.

3. A high-purity ethyl acetate purification device according to claim 2, characterized in that, The lifting and drainage shaft tube is provided with a plurality of lifting sliders, the inner side of the lifting J-shaped tube is provided with a plurality of lifting slideways, and the plurality of lifting sliders are movably inserted into the inner sides of the plurality of lifting slideways respectively.

4. A high-purity ethyl acetate purification device according to claim 3, characterized in that, The purification box is provided with an electric heating rod.

5. A high-purity ethyl acetate purification device according to claim 4, characterized in that, The purification box is provided with a temperature sensor.

6. A high-purity ethyl acetate purification device according to claim 5, characterized in that, The purification box is provided with a pressure relief valve.

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