Esterification reaction device for biodiesel production

Abstract

The utility model discloses an esterification reaction device for biodiesel production, which comprises an esterification kettle, a first motor is mounted on the upper surface of the esterification kettle, a partition plate is fixedly connected to the inner wall of the esterification kettle, and first bearings are fixedly embedded in the upper surface of the partition plate and the upper surface of the esterification kettle; through the arrangement of the esterification kettle, the first motor, the partition plate, the first bearing, the rotating shaft and the first stirring rod, an added material can be premixed above the partition plate, so that an esterification reaction can be quickly completed in the follow-up process; according to the esterification kettle, materials and a catalyst can be fully stirred in the esterification reaction process, so that the reaction speed is further increased, the materials precipitated at the bottom of the esterification kettle can be continuously conveyed upwards through the arrangement of a mounting opening, a shell, a feeding opening, a discharging opening, a second motor, a second bearing and a spiral conveying shaft, so that the materials can be better reacted, and the reaction efficiency is improved. Accumulation at the bottom of the esterification kettle is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of biodiesel production, in particular to an esterification reaction device for biodiesel production. Background Art

[0002] Biodiesel refers to fatty acid methyl ester or ethyl ester formed by ester conversion of vegetable oil, animal oil, waste oil or microbial oil with methanol or ethanol. It is a typical "green energy" with good environmental performance, good engine starting performance, good fuel performance, wide source of raw materials and renewable characteristics.

[0003] After searching, the utility model patent with patent announcement number CN210906140U discloses a biodiesel glycerol esterification reactor, including a reactor body, a driving member is rotatably provided on the top surface of the reactor body, and a stirring member and an anti-sinking member are provided on one end of the driving member located in the reactor body. The utility model drives the U-shaped fixed block at the lower end of the connecting rod to rotate through the driving device, so that the U-shaped fixed block stirs the raw material deposited at the bottom of the reactor body, effectively improving the effect of the esterification reaction, and drives the telescopic rod fixed by stud bolts and nuts in the through groove of the connecting block to rotate through the rotation of the connecting rod, so that when the telescopic rod stirs the raw materials in the reactor body, it drives the elastic scraper to scrape the inner wall of the reactor body, avoiding the raw materials from adhering to the inner wall of the reactor body and causing the waste of raw materials.

[0004] However, the above design still has some shortcomings. In the above design, the raw materials settled at the bottom of the reactor are only stirred by the rotation of the U-shaped fixed block, and the precipitated materials cannot be transported upward, so that the materials can only react at the bottom of the reactor, resulting in unsatisfactory production results. Utility Model Content

[0005] The utility model aims to provide an esterification reaction device for biodiesel production to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an esterification reaction device for biodiesel production, comprising an esterification kettle, a first motor is installed on the upper surface of the esterification kettle, a partition is fixedly connected to the inner wall of the esterification kettle, the upper surface of the partition and the upper surface of the esterification kettle are both fixedly inlaid with first bearings, the inner rings of the two first bearings are commonly fixedly connected to a rotating shaft, the top end of the rotating shaft is fixedly connected to the output end of the first motor, a group of first stirring rods are fixedly connected to the outer surface of the rotating shaft, a disc is fixedly connected to the bottom end of the rotating shaft, a group of vertical rods are fixedly connected to the bottom surface of the disc, and a group of second stirring rods are fixedly connected to the outer surface of each of the vertical rods.

[0007] The bottom surface of the esterification kettle is provided with an installation opening, the inner wall of the installation opening is provided with a shell, the outer surface of the shell is provided with two feed ports and two discharge ports, a second motor is installed on the bottom surface of the shell, the inner bottom wall and the inner top wall of the shell are both fixedly inlaid with second bearings, and the inner rings of the two second bearings are fixedly connected to a screw conveying shaft.

[0008] Wherein, a circular ring is sleeved on the outer surface of the shell, and the bottom end of each vertical rod is fixedly connected to the upper surface of the circular ring.

[0009] Wherein, the outer surface of the ring and the outer surface of the disc are both fixedly connected with two cross bars, and the ends of the two groups of cross bars away from each other are both fixedly connected with special-shaped scrapers.

[0010] Wherein, an operation panel is installed on the outer surface of the esterification kettle, and a group of supporting legs are fixedly connected to the bottom surface of the esterification kettle.

[0011] Wherein, the upper surface of the esterification kettle is fixedly connected with a feed pipe, and the feed pipe is located on the right side of the first motor.

[0012] Wherein, the bottom surface of the partition is fixedly connected with a delivery pipeline, and the outer surface of the delivery pipeline is provided with a first control valve.

[0013] Wherein, the bottom surface of the esterification kettle is fixedly connected with a discharge pipe, and the outer surface of the discharge pipe is provided with a second control valve.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model can premix the added materials above the partition through the esterification kettle, the first motor, the partition, the first bearing, the rotating shaft and the first stirring rod, so as to complete the esterification reaction quickly later; the materials and the catalyst can be fully stirred during the esterification reaction through the provided disc, the vertical rod and the second stirring rod, so as to further improve the reaction speed; the materials deposited at the bottom of the esterification kettle can be continuously transported upward through the provided installation port, the shell, the feed port, the discharge port, the second motor, the second bearing and the spiral conveying shaft, so as to enable the materials to react better and avoid accumulation at the bottom of the esterification kettle. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional structural schematic diagram of an esterification reaction device for biodiesel production according to the utility model;

[0017] Figure 2 It is a three-dimensional structural schematic diagram of a front cross-sectional view of an esterification reaction device for biodiesel production of the utility model;

[0018] Figure 3It is a three-dimensional structural schematic diagram of a bottom view of an esterification kettle in an esterification reaction device for biodiesel production of the utility model;

[0019] Figure 4 This is a three-dimensional structural schematic diagram of a shell in an esterification reaction device for biodiesel production according to the utility model;

[0020] Figure 5 This is a three-dimensional structural schematic diagram of a spiral conveying shaft in an esterification reaction device for biodiesel production according to the utility model;

[0021] Figure 6 The utility model is a three-dimensional structural schematic diagram of a rotating shaft in an esterification reaction device for biodiesel production.

[0022] In the figure: 1. esterification kettle; 2. operation panel; 3. support leg; 4. discharge pipe; 5. feed pipe; 6. first motor; 7. second motor; 8. partition; 9. conveying pipeline; 10. first control valve; 11. rotating shaft; 12. shell; 13. installation port; 14. second control valve; 15. feed port; 16. discharge port; 17. second bearing; 18. spiral conveying shaft; 19. first stirring rod; 20. first bearing; 21. disc; 22. vertical rod; 23. second stirring rod; 24. ring; 25. horizontal rod; 26. special-shaped scraper. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-6 The utility model provides a technical solution: an esterification reaction device for biodiesel production, comprising an esterification kettle 1, a first motor 6 is installed on the upper surface of the esterification kettle 1, a partition 8 is fixedly connected to the inner wall of the esterification kettle 1, the upper surface of the partition 8 and the upper surface of the esterification kettle 1 are fixedly inlaid with first bearings 20, the inner rings of the two first bearings 20 are commonly fixedly connected with a rotating shaft 11, the top of the rotating shaft 11 is fixedly connected to the output end of the first motor 6, a group of first stirring rods 19 are fixedly connected to the outer surface of the rotating shaft 11, a disc 21 is fixedly connected to the bottom end of the rotating shaft 11, a group of vertical rods 22 are fixedly connected to the bottom surface of the disc 21, and a group of second stirring rods 23 are fixedly connected to the outer surface of each vertical rod 22.

[0025] The bottom surface of the esterification kettle 1 is provided with an installation opening 13, the inner wall of the installation opening 13 is provided with a shell 12, the outer surface of the shell 12 is provided with two feed ports 15 and two discharge ports 16, a second motor 7 is installed on the bottom surface of the shell 12, the inner bottom wall of the shell 12 and the inner top wall of the shell 12 are fixedly inlaid with second bearings 17, and the inner rings of the two second bearings 17 are fixedly connected with a screw conveying shaft 18.

[0026] The outer surface of the shell 12 is sleeved with a circular ring 24, and the bottom end of each vertical rod 22 is fixedly connected to the upper surface of the circular ring 24. The circular ring 24 can reinforce the vertical rod 22, making its rotation more stable and avoiding shaking.

[0027] Among them, the outer surface of the ring 24 and the outer surface of the disk 21 are fixedly connected with two cross bars 25, and the ends of the two groups of cross bars 25 away from each other are fixedly connected with special-shaped scrapers 26. The arranged cross bars 25 can drive the special-shaped scrapers 26 to rotate to scrape off the materials adhered to the inner wall of the esterification kettle 1.

[0028] An operation panel 2 is installed on the outer surface of the esterification kettle 1, and a group of supporting legs 3 are fixedly connected to the bottom surface of the esterification kettle 1. The operation panel 2 can be used by the staff to control and use the device conveniently.

[0029] The upper surface of the esterification kettle 1 is fixedly connected with a feed pipe 5, and the feed pipe 5 is located on the right side of the first motor 6. The feed pipe 5 can be used to add materials into the esterification kettle 1, which is relatively convenient.

[0030] The bottom surface of the partition 8 is fixedly connected to a delivery pipe 9, and a first control valve 10 is provided on the outer surface of the delivery pipe 9. The premixed material above the partition 8 can be transported downward for esterification through the delivery pipe 9 and the first control valve 10.

[0031] The bottom surface of the esterification kettle 1 is fixedly connected with a discharge pipe 4, and a second control valve 14 is arranged on the outer surface of the discharge pipe 4. The discharge pipe 4 and the second control valve 14 are arranged to facilitate the removal of the esterified diesel for use.

[0032] Working principle: When in use, first install the device at the use position and turn on the power supply. After starting the device, the feed pipe 5 can be used to add the production materials into the esterification kettle 1. The materials will first fall on the top of the partition 8. At this time, the first motor 6 is used to drive the rotating shaft 11, the first stirring rod 19, the disc 21, the vertical rod 22 and the second stirring rod 23 to rotate, so as to preliminarily mix the materials. Then, the conveying pipeline 9 and the first control valve 10 can be used to convey the materials above the partition 8 downward for esterification. During the esterification process, the second stirring rod 23 can continuously stir it to increase the reaction speed of the materials. At the same time, the materials precipitated at the bottom of the esterification kettle 1 can enter the shell 12 through the feed port 15. The second motor 7 is used to drive the spiral conveying shaft 18 to rotate, so as to convey the precipitated materials upward and output them outward through the discharge port 16 so that they can fully react and ensure the quality of diesel production. After completion, the produced diesel can be taken out for use using the discharge pipe 4 and the second control valve 14.

[0033] Although 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. An esterification reaction device for biodiesel production, comprising an esterification kettle (1), characterized in that: A first motor (6) is installed on the upper surface of the esterification kettle (1); a partition (8) is fixedly connected to the inner wall of the esterification kettle (1); a first bearing (20) is fixedly inlaid on the upper surface of the partition (8) and the upper surface of the esterification kettle (1); the inner rings of the two first bearings (20) are commonly fixedly connected to a rotating shaft (11); the top end of the rotating shaft (11) is fixedly connected to the output end of the first motor (6); a group of first stirring rods (19) are fixedly connected to the outer surface of the rotating shaft (11); a disc (21) is fixedly connected to the bottom end of the rotating shaft (11); a group of vertical rods (22) are fixedly connected to the bottom surface of the disc (21); and a group of second stirring rods (23) are fixedly connected to the outer surface of each of the vertical rods (22); The bottom surface of the esterification kettle (1) is provided with an installation opening (13), the inner wall of the installation opening (13) is provided with a shell (12), the outer surface of the shell (12) is provided with two feed openings (15) and two discharge openings (16), a second motor (7) is provided on the bottom surface of the shell (12), the inner bottom wall of the shell (12) and the inner top wall of the shell (12) are both fixedly inlaid with second bearings (17), and the inner rings of the two second bearings (17) are fixedly connected to a screw conveying shaft (18).

2. The esterification reaction device for biodiesel production according to claim 1, characterized in that: The outer surface of the shell (12) is sleeved with a circular ring (24), and the bottom end of each vertical rod (22) is fixedly connected to the upper surface of the circular ring (24).

3. The esterification reaction device for biodiesel production according to claim 2, characterized in that: The outer surface of the circular ring (24) and the outer surface of the circular disk (21) are both fixedly connected with two cross bars (25), and the ends of the two groups of cross bars (25) that are away from each other are both fixedly connected with special-shaped scrapers (26).

4. The esterification reaction device for biodiesel production according to claim 1, characterized in that: An operating panel (2) is installed on the outer surface of the esterification kettle (1), and a group of supporting legs (3) is fixedly connected to the bottom surface of the esterification kettle (1).

5. The esterification reaction device for biodiesel production according to claim 1, characterized in that: The upper surface of the esterification kettle (1) is fixedly connected to a feed pipe (5), and the feed pipe (5) is located on the right side of the first motor (6).

6. The esterification reaction device for biodiesel production according to claim 1, characterized in that: The bottom surface of the partition (8) is fixedly connected to a delivery pipeline (9), and the outer surface of the delivery pipeline (9) is provided with a first control valve (10).

7. The esterification reaction device for biodiesel production according to claim 1, characterized in that: The bottom surface of the esterification kettle (1) is fixedly connected to a discharge pipe (4), and the outer surface of the discharge pipe (4) is provided with a second control valve (14).

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