Environment-friendly dehydration and impurity removal device for production of hydroxystearic acid

Abstract

The utility model discloses an environment-friendly dewatering and impurity-removing device for production of hydroxystearic acid, which relates to the technical field of production of hydroxystearic acid and comprises a pickling tank and a vacuum dewatering tank, a plurality of heating plates distributed at equal intervals up and down are fixedly mounted in the vacuum dewatering tank, a rotating shaft is rotatably mounted in the vacuum dewatering tank, and the pickling tank is connected with the rotating shaft. A rotating shaft is arranged in the vacuum dewatering tank, a plurality of scraping plates which are distributed up and down at equal intervals are installed on the rotating shaft in a sliding mode, a plurality of material spraying pipes are installed on the rotating shaft at equal intervals, the material spraying pipes are communicated with the connecting pipe, and a second motor is fixedly installed at the bottom end of the vacuum dewatering tank. The rotating shaft drives the material spraying pipe to uniformly spray a solution on each heating disc, and the heating discs are used for heating the material and are matched with the vacuum dewatering tank to dewater the material, so that the purpose of uniformly paving and dewatering the material is realized, and the material is more thoroughly dewatered.

Description

Technical Field

[0001] This utility model relates to the field of hydroxystearic acid production technology, specifically to an environmentally friendly dehydration and impurity removal device for hydroxystearic acid production. Background Technology

[0002] 12-Hydroxystearic acid, also known as 12-hydroxyoctadecanoic acid, has the molecular formula C18H36O3. It is a white crystalline powder with CAS numbers 106-14-9; 78642-86-1; 8039-23-4; and 860114-96-1. It should be stored in a cool, well-ventilated warehouse, away from fire and heat sources. It should be stored separately from oxidants and strong alkalis, and should not be mixed with other substances. It should be kept away from light. It is used in the production of lubricating greases and also in organic synthesis.

[0003] In the production of 12-hydroxystearic acid, it is necessary to dehydrate and remove impurities from the material. Existing environmentally friendly dehydration and impurity removal devices for the production of hydroxystearic acid usually stack a large amount of material together for dehydration treatment, which easily leads to uneven and incomplete dehydration. In order to solve the above problems, the inventors propose an environmentally friendly dehydration and impurity removal device for the production of hydroxystearic acid. Utility Model Content

[0004] To address the problem that existing environmentally friendly dehydration and impurity removal devices for hydroxystearic acid production typically involve stacking large amounts of material together for dehydration, which can lead to uneven and incomplete dehydration, the present invention aims to provide an environmentally friendly dehydration and impurity removal device for hydroxystearic acid production.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: an environmentally friendly dehydration and impurity removal device for the production of hydroxystearic acid, comprising an acid washing tank and a vacuum dehydration tank, a conveying pipe fixedly installed between the acid washing tank and the vacuum dehydration tank, a pump fixedly installed on the conveying pipe, multiple heating plates equally spaced vertically fixedly installed inside the vacuum dehydration tank, a rotating shaft rotatably installed inside the vacuum dehydration tank, multiple scrapers equally spaced vertically slidably installed on the rotating shaft, and the scrapers contact the upper surface of the corresponding heating plates, a rotating connector fixedly installed at one end of the conveying pipe inside the vacuum dehydration tank, a connecting pipe fixedly installed inside the rotating shaft, and the top end of the connecting pipe rotatably connected to the rotating connector, multiple spray pipes equally spaced on the rotating shaft, and the spray pipes communicating with the connecting pipe, a second motor fixedly installed at the bottom of the vacuum dehydration tank, and the output end of the second motor fixedly connected to the bottom of the rotating shaft.

[0006] Preferably, a sealing cover is hinged to the top of the vacuum dehydration tank, an exhaust pipe is fixedly installed on the sealing cover, a vacuum pump is fixedly installed on the sealing cover, and the output end of the vacuum pump is connected to the exhaust pipe. Multiple equally spaced sliding grooves are opened on the rotating shaft, and one end of the scraper is slidably locked in the corresponding sliding groove. A fixing rod is fixedly installed in the multiple sliding grooves, and the fixing rod is inserted through one end of the corresponding scraper. A spring is sleeved on each of the multiple fixing rods.

[0007] Preferably, a fixed frame is slidably installed on one side of the inside of the vacuum dehydration tank, and multiple trays are fixedly installed on the fixed frame at equal intervals. Collection boxes can be detachably installed on each of the multiple trays.

[0008] Preferably, a stirring rod is rotatably installed inside the pickling tank, a first motor is fixedly installed at the top of the pickling tank, and the output end of the first motor is fixedly connected to the top of the stirring rod. A water spray pipe is fixedly installed at the top of the inside of the pickling tank, and a water inlet pipe and a feed pipe are fixedly installed at the top of the pickling tank, with the water inlet pipe connected to the water spray pipe.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0010] 1. In this utility model, a second motor drives the rotating shaft to rotate one revolution and then stop. The rotating shaft drives the spray pipe to spray the solution evenly onto each heating plate. The heating plate heats the material, and the vacuum dehydration tank dehydrates the material, thereby achieving the purpose of evenly spreading and dehydrating the material, making the material dehydrated more thoroughly.

[0011] 2. In this utility model, by setting up a fixed frame and a collection box, the material on the heating plate is scraped off by a scraper and falls into the collection box from the opening of the heating plate for collection, thereby achieving the purpose of facilitating the collection and removal of the dehydrated material. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the internal structure of the pickling tank of this utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the vacuum dehydration tank of this utility model;

[0016] Figure 4 This is a schematic diagram of the rotating shaft structure of this utility model;

[0017] Figure 5 This utility model Figure 4 Enlarged schematic diagram of the structure at point A in the middle;

[0018] Figure 6 This is a schematic diagram of the cross-sectional structure of the rotating shaft of this utility model;

[0019] Figure 7 This is a schematic diagram showing the disassembled structure of the fixing frame and the collection box of this utility model.

[0020] In the diagram: 1. Pickling tank; 2. Vacuum dehydration tank; 3. Feeding pipe; 4. Pump; 5. Water inlet pipe; 6. First motor; 7. Feed pipe; 8. Sealing cover; 9. Exhaust pipe; 10. Vacuum pump; 11. Second motor; 12. Stirring rod; 13. Water spray pipe; 14. Rotating shaft; 15. Scraper; 16. Spray pipe; 17. Rotating connector; 18. Fixing frame; 19. Collection box; 20. Fixing rod; 21. Spring; 22. Connecting pipe; 23. Support plate; 24. Heating plate. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example: Figure 1-7As shown, this utility model provides an environmentally friendly dehydration and impurity removal device for the production of hydroxystearic acid, including an acid washing tank 1 and a vacuum dehydration tank 2. A conveying pipe 3 is fixedly installed between the acid washing tank 1 and the vacuum dehydration tank 2. A pump 4 is fixedly installed on the conveying pipe 3. Multiple heating plates 24 are fixedly installed inside the vacuum dehydration tank 2, arranged vertically and vertically at equal intervals. A rotating shaft 14 is rotatably installed inside the vacuum dehydration tank 2. Multiple scrapers 15 are slidably installed on the rotating shaft 14, arranged vertically and vertically at equal intervals, and the scrapers 15 are in contact with the upper surface of the corresponding heating plates 24. A rotating connector 17 is fixedly installed at one end of the conveying pipe 3 inside the vacuum dehydration tank 2. A connecting pipe 22 is installed, and the top end of the connecting pipe 22 is rotatably connected to the rotating connector 17. Multiple spray pipes 16 are equidistantly installed on the rotating shaft 14, and the spray pipes 16 are connected to the connecting pipe 22. A second motor 11 is fixedly installed at the bottom end of the vacuum dehydration tank 2, and the output end of the second motor 11 is fixedly connected to the bottom end of the rotating shaft 14. A sealing cover 8 is hinged to the top end of the vacuum dehydration tank 2. An exhaust pipe 9 is fixedly installed on the sealing cover 8, and a vacuum pump 10 is fixedly installed on the sealing cover 8, with the output end of the vacuum pump 10 connected to the exhaust pipe 9. In the preparation process of hydroxystearic acid, the pickling tank 1 is used to remove impurities and unreacted substances generated during the reaction process. The initial materials of the reaction are pickled. Pickling typically involves treating the reaction products with an acidic solution to neutralize residual alkaline substances and other alkaline impurities, converting them into soluble salts which are then removed by hot water spray washing. The pickling solution from the pickling tank 1 is pumped into a vacuum dehydration tank 2 using a pump 4 and a feed pipe 3 for dehydration. A second motor 11 drives a rotating shaft 14 to rotate one revolution and then stop (the rotation direction of the rotating shaft 14 is with the scraper 15 in front and the spray pipe 16 behind). The rotating shaft 14 drives the spray pipe 16 to evenly spray the solution onto each heating plate 24 (the feed pipe 3 connects to the rotating connector 1). 7. The solution is transported into the connecting pipe 22 and sprayed out through the spray pipe 16. The heating plate 24 is used to heat the material, so that the water in the material turns into water vapor. At the same time, the vacuum pump 10 is used to evacuate the tank to a vacuum. When the tank is evacuated, the water in the material evaporates or permeates into the vacuum system due to the pressure difference. Then it is extracted by the vacuum pump 10 and discharged through the exhaust pipe 9. As the water decreases, the material gradually concentrates and eventually forms a solid or semi-solid state. Then, the second motor 11 drives the rotating shaft 14 to rotate one revolution again. The rotating shaft 14 drives the scraper 15 to scrape off the material on the heating plate 24 and drop it from the opening of the heating plate 24.

[0023] Multiple grooves are evenly distributed on the rotating shaft 14, and one end of the scraper 15 is slidably locked in the corresponding groove. A fixing rod 20 is fixedly installed in the multiple grooves, and the fixing rod 20 is inserted through one end of the corresponding scraper 15. A spring 21 is sleeved on each of the multiple fixing rods 20.

[0024] By adopting the above technical solution, curved plugs are fixedly installed at the opening of the heating plate 24 to prevent undehydrated materials from flowing out. When the scraper 15 contacts the curved plug, it can slide and adjust in the groove on the rotating shaft 14. The spring 21 can keep the bottom end of the scraper 15 in contact with the upper surface of the heating plate 24.

[0025] A fixed frame 18 is slidably installed on one side of the interior of the vacuum dehydration tank 2. Multiple trays 23 are fixedly installed on the fixed frame 18 at equal intervals. Collection boxes 19 can be detachably installed on each of the multiple trays 23.

[0026] By adopting the above technical solution, the scraper 15 scrapes off the material on the heating plate 24 and drops it into the collection box 19 from the opening of the heating plate 24 for collection. A square positioning block is fixedly installed at the bottom of the collection box 19, and a square positioning groove is opened on the tray 23 to facilitate the installation and disassembly of the collection box 19, and it is fixed with bolts.

[0027] A stirring rod 12 is rotatably installed inside the pickling tank 1. A first motor 6 is fixedly installed at the top of the pickling tank 1, and the output end of the first motor 6 is fixedly connected to the top of the stirring rod 12. A water spray pipe 13 is fixedly installed at the top inside the pickling tank 1. A water inlet pipe 5 and a feed pipe 7 are fixedly installed at the top of the pickling tank 1, and the water inlet pipe 5 is connected to the water spray pipe 13.

[0028] By adopting the above technical solution, the material and acidic solvent enter the pickling tank 1 through the feed pipe 7. The first motor 6 drives the stirring rod 12 to rotate and stir the material. This allows the acidic solvent to fully contact and neutralize the residual alkaline substances and other alkaline impurities in the material, thereby converting them into soluble salts. Then, hot water enters the spray pipe 13 through the water inlet pipe 5 and is sprayed out through the spray pipe 13 to remove the impurities after the reaction in the material.

[0029] Working principle: The solution after pickling and impurity removal in the pickling tank 1 is drawn into the vacuum dehydration tank 2 by the pump 4 and the conveying pipe 3 for dehydration. The second motor 11 drives the rotating shaft 14 to rotate one revolution and then stop (the rotation direction of the rotating shaft 14 is with the scraper 15 in front and the spray pipe 16 behind). The rotating shaft 14 drives the spray pipe 16 to spray the solution evenly onto each heating plate 24 (the conveying pipe 3 transports the solution to the connecting pipe 22 through the rotating connector 17 and sprays it out through the spray pipe 16). The heating plate 24 heats the material, turning the moisture in the material into water vapor. Vacuum pump 10 draws the tank into a vacuum. When the tank is in a vacuum state, the moisture in the material evaporates or permeates into the vacuum system due to the pressure difference, and is then drawn out by vacuum pump 10 and discharged through exhaust pipe 9. As the moisture decreases, the material gradually concentrates and eventually forms a solid or semi-solid state, thereby achieving the purpose of uniformly spreading and dehydrating the material, making the material dehydration more thorough. Then, the second motor 11 drives the rotating shaft 14 to rotate one revolution again. The rotating shaft 14 drives the scraper 15 to scrape off the material on the heating plate 24, which falls from the opening of the heating plate 24 into the collection box 19 for collection.

[0030] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. An environmentally friendly dehydration and impurity removal device for the production of hydroxystearic acid, comprising an acid washing tank (1) and a vacuum dehydration tank (2), characterized in that: A conveying pipe (3) is fixedly installed between the pickling tank (1) and the vacuum dehydration tank (2). A pump (4) is fixedly installed on the conveying pipe (3). Multiple heating plates (24) are fixedly installed inside the vacuum dehydration tank (2) at equal intervals. A rotating shaft (14) is rotatably installed inside the vacuum dehydration tank (2). Multiple scrapers (15) are slidably installed on the rotating shaft (14) at equal intervals, and the scrapers (15) are in contact with the upper surface of the corresponding heating plate (24). The conveying pipe (3) is located at... A rotating connector (17) is fixedly installed at one end of the vacuum dehydration tank (2). A connecting pipe (22) is fixedly installed inside the rotating shaft (14), and the top end of the connecting pipe (22) is rotatably connected to the rotating connector (17). Multiple spray pipes (16) are equidistantly installed on the rotating shaft (14), and the spray pipes (16) are connected to the connecting pipes (22). A second motor (11) is fixedly installed at the bottom end of the vacuum dehydration tank (2), and the output end of the second motor (11) is fixedly connected to the bottom end of the rotating shaft (14).

2. The environmentally friendly dehydration and impurity removal device for the production of hydroxystearic acid as described in claim 1, characterized in that, The top of the vacuum dehydration tank (2) is hinged to a sealing cover (8), and an exhaust pipe (9) is fixedly installed on the sealing cover (8).

3. The environmentally friendly dehydration and impurity removal device for the production of hydroxystearic acid as described in claim 2, characterized in that, A vacuum pump (10) is fixedly installed on the sealing cover (8), and the output end of the vacuum pump (10) is connected to the exhaust pipe (9).

4. The environmentally friendly dehydration and impurity removal device for the production of hydroxystearic acid as described in claim 1, characterized in that, The rotating shaft (14) has multiple equally spaced grooves, and one end of the scraper (15) is slidably engaged in the corresponding groove.

5. An environmentally friendly dehydration and impurity removal device for the production of hydroxystearic acid as described in claim 4, characterized in that, A fixing rod (20) is fixedly installed in each of the multiple grooves, and the fixing rod (20) is inserted through one end of the corresponding scraper (15). A spring (21) is sleeved on each of the multiple fixing rods (20).

6. The environmentally friendly dehydration and impurity removal device for the production of hydroxystearic acid as described in claim 1, characterized in that, A fixed frame (18) is slidably installed on one side of the vacuum dehydration tank (2). Multiple trays (23) are fixedly installed on the fixed frame (18) at equal intervals. Collection boxes (19) can be detachably installed on each of the multiple trays (23).

7. An environmentally friendly dehydration and impurity removal device for the production of hydroxystearic acid as described in claim 1, characterized in that, A stirring rod (12) is rotatably installed inside the pickling tank (1). A first motor (6) is fixedly installed at the top of the pickling tank (1), and the output end of the first motor (6) is fixedly connected to the top of the stirring rod (12).

8. An environmentally friendly dehydration and impurity removal device for the production of hydroxystearic acid as described in claim 1, characterized in that, The pickling tank (1) is fixedly installed with a water spray pipe (13) at the top inside. The pickling tank (1) is also fixedly installed with a water inlet pipe (5) and a feed pipe (7), and the water inlet pipe (5) is connected to the water spray pipe (13).

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