Esterification reaction kettle

Abstract

The utility model relates to the technical field of esterification reaction kettles, and discloses an esterification reaction kettle which comprises a supporting frame, the front side of the supporting frame is fixedly connected with a storage box, the right side of the bottom end of the storage box is in height connection with a one-way water inlet pipe, and the rear side of the one-way water inlet pipe is fixedly connected with a piston cylinder. A one-way water outlet valve is fixedly connected to the bottom end of the piston barrel, a first telescopic pipe is fixedly connected to the end, away from the piston barrel, of the one-way water outlet valve, a spring assembly is fixedly connected to the bottom of an inner cavity of the supporting frame, a reaction kettle is fixedly connected to the top end of the spring assembly, and connecting rods are fixedly connected to the left side and the right side of the reaction kettle. The weight of the reaction kettle is reduced according to the amounts of fatty acid and polyglycerol added into the inner cavity of the reaction kettle, the heavier the reaction kettle is, the more a catalyst enters the inner cavity of the reaction kettle is, and otherwise, the less the catalyst enters the inner cavity of the reaction kettle is, so that a worker does not need to recalculate the addition amount of the catalyst when facing different amounts of fatty acid and polyglycerol.

Description

Technical Field

[0001] The utility model relates to the technical field of esterification reaction kettles, and more specifically, to an esterification reaction kettle. Background Art

[0002] Polyglycerol is a complex mixture containing linear, branched, and cyclic structures, with a degree of polymerization ranging from two to twelve. Polyglycerol is generally prepared through glycerol condensation or the addition reaction of glycerol esters with glycerol. After obtaining polyglycerol, the next step is esterification. The desired fatty acid is heated to a molten state and added to an esterification reactor. The prepared polyglycerol is then added to the molten fatty acid, and an appropriate amount of catalyst (such as sodium hydroxide) is added. The esterification reactor is then heated and stirred to allow the polyglycerol and fatty acid to undergo an esterification reaction.

[0003] In the prior art, workers often add an appropriate amount of catalyst according to the amount of fatty acids and polyglycerol added to the esterification reactor. However, when esterifying a small or large amount of fatty acids and polyglycerol, workers are required to recalculate the amount of catalyst added, thereby reducing the esterification efficiency. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the utility model provides an esterification reaction kettle, which has the advantage of being able to...

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: an esterification reactor, comprising a support frame, a storage box fixedly connected to the front side of the support frame, a one-way water inlet pipe connected to the right side of the bottom end of the storage box, a piston cylinder fixedly connected to the rear side of the one-way water inlet pipe, a one-way water outlet valve fixedly connected to the bottom end of the piston cylinder, a telescopic tube fixedly connected to the end of the one-way water outlet valve away from the piston cylinder, a spring assembly fixedly connected to the bottom of the inner cavity of the support frame, a reactor fixedly connected to the top of the spring assembly, connecting rods fixedly connected to the left and right sides of the reactor, a piston plate fixedly connected to the bottom end of the connecting rod, and the piston plate movably sleeved in the inner cavity of the piston cylinder.

[0006] As an optimal technical solution of the present invention, the top end of the connecting rod is fixedly connected to a damping rod, the top end of the support frame is fixedly connected to a cylinder, the output shaft of the cylinder is fixedly sleeved with a damping plate, and the damping plate is fitted with the outer surface of the damping rod.

[0007] As a preferred technical solution of the present invention, the bottom end of the storage box is connected to the inner cavity of the piston cylinder through a one-way water inlet pipe, and the top end of the telescopic tube 1 is fixedly connected to the top end of the reactor.

[0008] As a preferred technical solution of the present invention, the piston plate is located above the connection between the one-way water inlet pipe and the piston cylinder, and a one-way discharge valve is provided inside the piston plate.

[0009] As a preferred technical solution of the present invention, the spring assembly consists of a damping telescopic rod and a spring, the damping telescopic rod is located at the center of the spring cavity, and the piston cylinder is fixedly connected to the support frame.

[0010] As an optimal technical solution of the present invention, a telescopic tube three is fixedly connected to the center of the bottom end of the reactor, a down valve is fixedly connected to the connection between the telescopic tube three and the reactor, and the bottom end of the telescopic tube three passes through the support frame and is fixedly connected to the support frame.

[0011] As a preferred technical solution of the present invention, two telescopic tubes 2 are fixedly connected to the top end of the support frame, and both of the telescopic tubes 2 are connected to the inner cavity of the reactor.

[0012] As an optimal technical solution of the present invention, a motor is fixedly connected to the top of the reactor, a stirring rod is fixedly sleeved on the output shaft of the motor, the stirring rod is located in the inner cavity of the reactor, and a heating plate is fixedly connected to the side of the reactor close to the telescopic tube.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] 1. The utility model pushes the catalyst in the inner cavity of the piston cylinder into the inner cavity of the reactor along the one-way water outlet valve and the telescopic tube through the piston plate, and contacts the fatty acids and polyglycerol in the inner cavity of the reactor, thereby driving the reactor to descend according to the amount of fatty acids and polyglycerol added to the inner cavity of the reactor. The heavier the reactor, the more catalyst enters the inner cavity of the reactor, and vice versa. Therefore, the staff no longer needs to recalculate the amount of catalyst to be added when faced with different amounts of fatty acids and polyglycerol.

[0015] 2. The utility model uses the ratio difference between fatty acid and polyglycerol and catalyst to start the cylinder to drive the damping plate to squeeze the damping rod. If the ratio difference is larger, the force of the damping plate driven by the cylinder on the damping rod is greater, and vice versa. When the force is greater, the reactor descends a shorter distance under the same weight, thereby realizing that the staff only needs to set the corresponding ratio and control the force of the damping plate on the damping rod to require more or less catalyst under the same total amount of fatty acid and polyglycerol. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the piston-cylinder connection structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the connection of the reactor structure of the utility model;

[0019] Figure 4 For this utility model Figure 3 The connection diagram at point A is enlarged;

[0020] Figure 5 This is a schematic diagram of the interior of the reactor structure of the utility model;

[0021] Figure 6 This is a flow chart of the utility model for controlling the amount of catalyst added to the cylinder.

[0022] In the figure: 1. Support frame; 2. Storage box; 3. One-way water inlet pipe; 4. Piston cylinder; 5. One-way water outlet valve; 6. Telescopic tube 1; 7. Spring assembly; 8. Reactor; 9. Connecting rod; 10. Piston plate; 11. Damping rod; 12. Cylinder; 13. Telescopic tube 2; 14. Motor; 15. Telescopic tube 3; 16. Down valve; 17. Heating plate; 18. Stirring rod; 19. Damping plate. DETAILED DESCRIPTION

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

[0024] like Figures 1 to 6 As shown, the utility model provides an esterification reactor, including a support frame 1, a storage box 2 is fixedly connected to the front side of the support frame 1, a one-way water inlet pipe 3 is connected to the right side of the bottom end of the storage box 2, a piston cylinder 4 is fixedly connected to the rear side of the one-way water inlet pipe 3, the bottom end of the piston cylinder 4 is fixedly connected to a one-way water outlet valve 5, the end of the one-way water outlet valve 5 away from the piston cylinder 4 is fixedly connected to a telescopic tube 6, the bottom of the inner cavity of the support frame 1 is fixedly connected to a spring assembly 7, the top of the spring assembly 7 is fixedly connected to a reactor 8, the left and right sides of the reactor 8 are fixedly connected to connecting rods 9, the bottom end of the connecting rod 9 is fixedly connected to a piston plate 10, and the piston plate 10 is movably sleeved in the inner cavity of the piston cylinder 4;

[0025] The catalyst passing through the inner cavity of the storage tank 2 enters the inner cavity of the piston cylinder 4 along the one-way water inlet pipe 3 under its own gravity. After the fatty acid and polyglycerol are added to the inner cavity of the reactor 8 through the telescopic tube 2 13, the reactor 8 becomes heavier and descends. The distance the reactor 8 descends is proportional to the amount of fatty acid and polyglycerol added. Then, the reactor 8 drives the piston plate 10 at the bottom end of the connecting rod 9 to descend in the inner cavity of the piston cylinder 4, passing through the connection between the one-way water inlet pipe 3 and the piston cylinder 4. The heavier the reactor 8, the longer the distance the piston plate 10 descends in the inner cavity of the piston cylinder 4. The lighter the reactor 8, the shorter the distance the piston plate 10 descends in the inner cavity of the piston cylinder 4.

[0026] Then the piston plate 10 pushes the catalyst in the inner cavity of the piston cylinder 4 into the inner cavity of the reactor 8 along the one-way water outlet valve 5 and the telescopic tube 6, and contacts with the fatty acids and polyglycerol in the inner cavity of the reactor 8, thereby driving the reactor 8 to descend under the weight according to the amount of fatty acids and polyglycerol added to the inner cavity of the reactor 8. The heavier the reactor 8 is, the more catalyst enters the inner cavity of the reactor 8, and vice versa. Therefore, the staff no longer needs to recalculate the amount of catalyst to be added when faced with different amounts of fatty acids and polyglycerol.

[0027] The top of the connecting rod 9 is fixedly connected to the damping rod 11, the top of the support frame 1 is fixedly connected to the cylinder 12, the output shaft of the cylinder 12 is fixedly sleeved with a damping plate 19, and the damping plate 19 is in contact with the outer surface of the damping rod 11;

[0028] By using the ratio difference between fatty acids and polyglycerol and the catalyst, the cylinder 12 is started to drive the damping plate 19 to squeeze the damping rod 11. If the ratio difference is larger, the cylinder 12 drives the damping plate 19 to exert a greater force on the damping rod 11, and vice versa. When the force is greater, the reactor 8 descends a shorter distance under the same weight, thereby achieving the goal that the staff only needs to set the corresponding ratio and control the force of the damping plate 19 on the damping rod 11 to control the required amount of catalyst under the same total amount of fatty acids and polyglycerol.

[0029] The bottom end of the storage box 2 is connected to the inner cavity of the piston cylinder 4 through the one-way water inlet pipe 3, and the top end of the telescopic tube 6 is fixedly connected to the top end of the reactor 8;

[0030] The bottom end of the storage box 2 is connected to the inner cavity of the piston cylinder 4 through the one-way water inlet pipe 3, so that the catalyst in the inner cavity of the storage box 2 is transported to the inner cavity of the piston cylinder 4 along the one-way water inlet pipe 3 by its own gravity, and then fixedly connected to the top of the reactor 8 through the top of the telescopic tube 6, so that the catalyst in the inner cavity of the piston cylinder 4 can be transported to the inner cavity of the reactor 8 along the one-way water outlet valve 5 and the telescopic tube 6.

[0031] Among them, the piston plate 10 is located above the connection between the one-way water inlet pipe 3 and the piston cylinder 4, and a one-way discharge valve is provided inside the piston plate 10;

[0032] The piston plate 10 is located above the connection between the one-way water inlet pipe 3 and the piston cylinder 4, so that the catalyst in the inner cavity of the storage box 2 can enter the inner cavity of the piston cylinder 4 along the one-way water inlet pipe 3. When the piston plate 10 descends, the catalyst in the inner cavity of the piston cylinder 4 can be pushed into the inner cavity of the reactor 8 through the piston plate 10, and then through the one-way discharge valve of the piston plate 10, when the piston plate 10 rises and resets in the inner cavity of the piston cylinder 4, the catalyst above the inner cavity of the piston cylinder 4 is located below the piston plate 10 through the one-way discharge valve.

[0033] The spring assembly 7 is composed of a damping telescopic rod and a spring. The damping telescopic rod is located at the center of the spring cavity. The piston cylinder 4 is fixedly connected to the support frame 1.

[0034] By setting the spring assembly 7, after the inner cavity of the reactor 8 is filled with material, the spring assembly 7 contracts and accumulates force. When the material in the inner cavity of the reactor 8 is discharged, the elasticity of the spring assembly 7 can drive the reactor 8 to rise and reset. The reactor 8 is then positioned and guided by the setting of the damping telescopic rod, and is then fixedly connected to the support frame 1 through the piston cylinder 4, so that the normal use of the reactor 8 will not be affected during the descent of the reactor 8.

[0035] Among them, the center of the bottom end of the reactor 8 is fixedly connected to a telescopic tube 3 15, and the connection between the telescopic tube 3 15 and the reactor 8 is fixedly connected to a down valve 16. The bottom end of the telescopic tube 3 15 passes through the support frame 1 and is fixedly connected to the support frame 1;

[0036] Through the telescopic tube 3 15 and the down valve 16 at the bottom end of the reactor 8, when the fatty acid and polyglycerol in the inner cavity of the reactor 8 are completely esterified, the down valve 16 is opened to discharge the material through the telescopic tube 3 15, and then pass through the bottom end of the telescopic tube 3 15 through the support frame 1, so that the normal use of the telescopic tube 3 15 is not affected when the reactor 8 is lowered.

[0037] Among them, the top of the support frame 1 is fixedly connected to two telescopic tubes 13, and the two telescopic tubes 13 are both connected to the inner cavity of the reactor 8;

[0038] By providing the two telescopic tubes 13 , fatty acids and polyglycerol can be added into the inner cavity of the reactor 8 through the two telescopic tubes 13 , respectively.

[0039] The top of the reactor 8 is fixedly connected to a motor 14, and the output shaft of the motor 14 is fixedly sleeved with a stirring rod 18, which is located in the inner cavity of the reactor 8. A heating plate 17 is fixedly connected to the side of the reactor 8 close to the telescopic tube 6;

[0040] Fatty acids and polyglycerol are added to the inner cavity of the reactor 8 for esterification through the motor 14 at the top of the reactor 8, and the heating plate 17 is started to heat the fatty acids and polyglycerol in the inner cavity of the reactor 8. The motor 14 then drives the stirring rod 18 to stir the fatty acids and polyglycerol in the inner cavity of the reactor 8, thereby completing the esterification reaction. The reaction temperature, time, vacuum degree and other conditions need to be adjusted according to the specific process requirements.

[0041] The working principle and use process of the utility model are as follows: according to the ratio between fatty acid, polyglycerol and catalyst, the cylinder 12 is started to drive the damping plate 19 to squeeze the damping rod 11. If the ratio difference is larger, it proves that more catalyst is required under the same weight, and the damping plate 19 squeezes the damping rod 11 with greater force; if the ratio difference is smaller, it proves that less catalyst is required under the same weight, and the damping plate 19 squeezes the damping rod 11 with less force;

[0042] The control method of the quantitative addition ratio of the catalyst is as follows: the total stroke of the cylinder 12 is divided into 20 equal parts, wherein the ratio of the total amount of fatty acids and polyglycerol to the amount of catalyst added in the 10th equal part is set at 1:1, wherein the corresponding ratios from the first equal part to the 20th equal part are 1:0.1, 1:0.2, 1:0.3...1:1, 1:1.1, 1:1.3...1:1.9 and 1:2 respectively. When sodium hydroxide is used as the catalyst, the addition ratio of sodium hydroxide is 1:0.2. At this time, the cylinder 12 is started, the moving stroke of the cylinder 12 is 2, and the resistance is at this time. The resistance of the damping plate 19 to the damping rod 11 is 0.2 times the total resistance, and the distance that the damping rod 11 cannot descend is 0.2 times the total descending distance. At this time, the volume of the piston cylinder 4 that can be pushed into the catalyst is 0.2 times the total volume; when potassium hydroxide is used as the catalyst, the addition ratio of potassium hydroxide is 1:0.1. At this time, the cylinder 12 is started, and the movement stroke of the cylinder 12 is 1. At this time, the resistance of the damping plate 19 to the damping rod 11 is 0.1 times the total resistance, and the distance that 11 cannot descend is 0.1 times the total descending distance. At this time, the volume of the piston cylinder 4 that can be pushed into the catalyst is 0.1 times the total volume;

[0043] First, the catalyst is added to the inner cavity of the storage tank 2. The catalyst in the inner cavity of the storage tank 2 then enters the inner cavity of the piston cylinder 4 through the one-way water inlet pipe 3, filling the inner cavity of the piston cylinder 4. The desired fatty acid is heated to a molten state and then added to the inner cavity of the reactor 8 through one of the second telescopic tubes 13. The prepared polyglycerol is then added to the inner cavity of the reactor 8 through the other second telescopic tube 13, thereby adding it to the molten fatty acid.

[0044] After the inner cavity of the reactor 8 is filled with fatty acids and polyglycerol, it becomes heavier and descends, and the descending distance is proportional to the amount of fatty acids and polyglycerol, thereby driving the connecting rod 9 to descend, and then driving the piston plate 10 at the bottom end of the connecting rod 9 to descend in the inner cavity of the piston cylinder 4, thereby pushing the catalyst in the inner cavity of the piston cylinder 4 along the one-way water outlet valve 5 and the telescopic tube 16 into the inner cavity of the reactor 8, so that the catalyst contacts the fatty acids and polyglycerol, and then starts the heating plate 17 to heat the inner cavity of the reactor 8, and then starts the motor 14 to drive the damping plate 19 to rotate, thereby stirring the material in the inner cavity of the reactor 8 through the damping plate 19 to perform an esterification reaction. After the esterification reaction is completed, start the down valve 16 to discharge the material from the telescopic tube 3 15.

[0045] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0046] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An esterification reactor, comprising a support frame (1), characterized in that: The front side of the support frame (1) is fixedly connected to a storage box (2), the right side of the bottom end of the storage box (2) is highly connected to a one-way water inlet pipe (3), the rear side of the one-way water inlet pipe (3) is fixedly connected to a piston cylinder (4), the bottom end of the piston cylinder (4) is fixedly connected to a one-way water outlet valve (5), the end of the one-way water outlet valve (5) away from the piston cylinder (4) is fixedly connected to a telescopic tube (6), the bottom of the inner cavity of the support frame (1) is fixedly connected to a spring assembly (7), the top end of the spring assembly (7) is fixedly connected to a reactor (8), the left and right sides of the reactor (8) are fixedly connected to connecting rods (9), the bottom end of the connecting rod (9) is fixedly connected to a piston plate (10), and the piston plate (10) is movably sleeved in the inner cavity of the piston cylinder (4).

2. The esterification reaction kettle according to claim 1, characterized in that: The top end of the connecting rod (9) is fixedly connected to a damping rod (11), the top end of the support frame (1) is fixedly connected to a cylinder (12), the output shaft of the cylinder (12) is fixedly sleeved with a damping plate (19), and the damping plate (19) is in contact with the outer surface of the damping rod (11).

3. The esterification reaction kettle according to claim 2, characterized in that: The bottom end of the storage box (2) is connected to the inner cavity of the piston cylinder (4) through a one-way water inlet pipe (3), and the top end of the telescopic tube (6) is fixedly connected to the top end of the reactor (8).

4. The esterification reaction kettle according to claim 3, characterized in that: The piston plate (10) is located above the connection between the one-way water inlet pipe (3) and the piston cylinder (4), and a one-way discharge valve is provided inside the piston plate (10).

5. The esterification reaction kettle according to claim 3, characterized in that: The spring assembly (7) consists of a damping telescopic rod and a spring, the damping telescopic rod is located at the center of the spring cavity, and the piston cylinder (4) is fixedly connected to the support frame (1).

6. The esterification reaction kettle according to claim 3, characterized in that: A telescopic tube three (15) is fixedly connected to the center of the bottom end of the reactor (8), and a down valve (16) is fixedly connected to the connection between the telescopic tube three (15) and the reactor (8). The bottom end of the telescopic tube three (15) passes through the support frame (1) and is fixedly connected to the support frame (1).

7. The esterification reaction kettle according to claim 6, characterized in that: The top end of the support frame (1) is fixedly connected to two telescopic tubes (13), and both of the telescopic tubes (13) are connected to the inner cavity of the reactor (8).

8. The esterification reaction kettle according to claim 6, characterized in that: The top of the reactor (8) is fixedly connected to a motor (14), the output shaft of the motor (14) is fixedly sleeved with a stirring rod (18), the stirring rod (18) is located in the inner cavity of the reactor (8), and a heating plate (17) is fixedly connected to the side of the reactor (8) close to the telescopic tube (6).

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