A reaction apparatus for producing levulinic acid

Abstract

The utility model discloses a reaction unit for leucic acid production relates to leucic acid production device technical field. Including base, the both sides top wall of base all are fixed with the stand, and the clamping cavity of two stands is provided with jar body, and the both sides wall of jar body all are fixed with hollow shaft, and two hollow shafts are rotatoryly connected between two sides'stand respectively, and the top of base is provided with the rotating lever, and the stem of rotating lever penetrates the inner chamber of jar body and the axle body of hollow shaft, and rotatoryly connected between rotating lever and the axle body inner wall of hollow shaft, and the top of base is provided with transmission mechanism. The utility model discloses through adding the reaction material for leucic acid production to jar body, and through starting motor drives the mixing rod rotation to mix and stir the material in jar body, under the action of transmission mechanism, make the mixing rod can mix and stir the reaction material in jar body all -round, avoid appearing because the reaction material deposit and cause the situation that cannot be stirred, be beneficial to the promotion mixing quality.

Description

Technical Field

[0001] This utility model relates to the technical field of levulinic acid production equipment, specifically a reaction device for levulinic acid production. Background Technology

[0002] Vylpropionic acid, also known as levulinic acid, levulinic acid, and fructose acid, is one of the important products produced by hydrolysis. It is easily soluble in water and some organic solvents. Currently, the production of levulinic acid requires the use of a reaction vessel for reaction processing.

[0003] Chinese patent CN211412011U discloses a reaction apparatus for producing levulinic acid, comprising a tank, a feed pipe fixedly connected to the top of the tank, a discharge pipe fixedly connected to the bottom of the tank, a support base fixedly connected to the top of the tank, a motor housing fixedly connected to the top of the support base, a rotary motor fixedly installed inside the motor housing, a rotary bearing fixedly installed on the top of the tank, a rotating rod movably installed inside the rotary bearing, and a support frame fixedly installed on the inner bottom wall of the tank. This reaction apparatus for producing levulinic acid, by providing a support base, motor housing, rotary motor, rotary bearing, rotating rod, support frame, and rotating column on the tank, facilitates the rotation of the rotating rod within the tank via the rotary motor and rotary bearing, and the support frame makes the rotation more stable, thereby utilizing the rotating column to stir the material inside the tank.

[0004] However, the reaction device disclosed in the above patent still has certain shortcomings in actual application. During the rotation and stirring process, due to the vertical setting of the tank, some reactants tend to settle at the bottom of the tank and are difficult to be stirred by the stirring structure, thus making it difficult to ensure the full mixing of the reactants. Utility Model Content

[0005] The purpose of this invention is to provide a reaction apparatus for the production of levulinic acid, in order to solve the problem mentioned in the background art that some reactants tend to settle at the bottom of the tank and are difficult to be stirred by the stirring structure, thus making it difficult to ensure the full mixing of the reactants.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] The reaction apparatus for producing levulinic acid includes a base, with vertical plates fixed to the top walls of both sides of the base. A tank is disposed in the cavity between the two vertical plates, and hollow shafts are fixed to the side walls of the tank. The two hollow shafts are rotatably connected to the vertical plates on both sides respectively. A rotating rod is disposed at the top of the base, with the rod penetrating the inner cavity of the tank and the shaft of the hollow shaft. The rotating rod is rotatably connected to the inner wall of the shaft of the hollow shaft via a bearing. A motor is connected to one end of the rotating rod, and a transmission mechanism is disposed at the top of the base.

[0008] Preferably, the transmission mechanism includes a gear ring, a fixing block, a gear, and a transmission rod. Two gear rings are provided, and the two gear rings are respectively fixedly installed on the outer walls of both sides of the tank. Two transmission rods are provided, and the two transmission rods are respectively located at the bottom of both sides of the tank. One end of the transmission rod passes through the plate of the adjacent vertical plate via a bearing. The fixing block is rotatably connected to the other end of the transmission rod, and the bottom wall of the fixing block is fixedly connected to the top wall of the base. The gear is fixedly installed on the surface of the transmission rod, and the gear meshes with the gear ring on the same side.

[0009] Preferably, the transmission mechanism further includes pulleys and a belt. The pulleys are fixedly installed on both ends of the rotating rod and the outer end of the transmission rod, respectively, and the belt is sleeved on two adjacent pulleys on the vertical side.

[0010] Preferably, the tank is equipped with a material guide pipe, and the top wall of the middle part of the base is provided with a discharge hole located on the same vertical axis as the material guide pipe.

[0011] Preferably, a plurality of stirring rods are uniformly fixedly installed on the surface of the rotating rod, all of which are located in the inner cavity of the tank. Two symmetrically distributed scrapers are provided in the inner cavity of the tank, with the outer wall of the scrapers fitting against the inner wall of the tank. A connecting rod is fixedly connected between the scraper and the rotating rod.

[0012] Preferably, support legs are fixedly installed at the four corners of the bottom wall of the base, and a mounting base is fixedly installed on one side of the top wall of the base, with the motor mounted on the top wall of the mounting base.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention introduces reactants for levulinic acid production into a tank via a feed pipe. A motor is started, driving a rotating rod to rotate. This rotation, in turn, drives a stirring rod to mix the materials in the tank. Driven by a pulley and belt, the rotating rod rotates, causing a transmission rod to rotate as well. The transmission rod, in turn, drives a gear. Because the gear meshes with the gear ring and the rotating rod is connected to the hollow shaft via bearings, the rotation of the gear causes the tank to rotate as well. The tank rotates in the opposite direction to the rotating rod. Since the tank is horizontally positioned, the stirring rod can perform comprehensive mixing of the reactants within the tank, preventing incomplete mixing due to reactant sedimentation and improving mixing quality. Attached Figure Description

[0015] Figure 1 This is a first-view structural schematic diagram of a reaction apparatus for producing levulinic acid according to the present invention.

[0016] Figure 2 This is a second-view structural schematic diagram of a reaction apparatus for producing levulinic acid according to the present invention.

[0017] Figure 3 This is a third-view structural diagram of a reaction apparatus for the production of levulinic acid according to the present invention.

[0018] Figure 4 This is a fourth-view partial cross-sectional structural diagram of a reaction apparatus for the production of levulinic acid according to this utility model.

[0019] In the diagram: 1. Base; 2. Support leg; 3. Mounting base; 4. Motor; 5. Vertical plate; 6. Tank body; 7. Gear ring; 8. Discharge hole; 9. Guide pipe; 10. Fixing block; 11. Gear; 12. Transmission rod; 13. Hollow shaft; 14. Rotating rod; 15. Pulley; 16. Belt; 17. Stirring rod; 18. Scraper; 19. Connecting rod. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0021] Example

[0022] Please see Figure 1 , Figure 2 , Figure 3The reaction apparatus for producing levulinic acid includes a base 1, two vertical plates 5 welded to the top walls of the left and right sides of the base 1, a tank 6 disposed in the cavity between the two vertical plates 5, hollow shafts 13 welded to the left and right sides of the tank 6, the two hollow shafts 13 being rotatably connected to the vertical plates 5 on both sides via bearings, a rotating rod 14 disposed at the top of the base 1, the rod of the rotating rod 14 penetrating the inner cavity of the tank 6 and the shaft of the hollow shaft 13, and the rotating rod 14 being rotatably connected to the inner wall of the shaft of the hollow shaft 13 via bearings, the purpose of which is to allow the rotating rod 14 and the hollow shaft 13 to rotate in opposite directions, a motor 4 being connected to the left end of the rotating rod 14 via a coupling, and a transmission mechanism disposed at the top of the base 1 for causing the rotating rod 14 and the hollow shaft 13 to rotate in opposite directions.

[0023] The transmission mechanism includes a gear ring 7, a fixing block 10, a gear 11, and a transmission rod 12. Two gear rings 7 are provided, and the two gear rings 7 are welded and sleeved on the left and right outer walls of the tank body 6 respectively. Two transmission rods 12 are provided, and the two transmission rods 12 are respectively located at the bottom of the left and right sides of the tank body 6. The outer end of the transmission rod 12 passes through the plate of the adjacent vertical plate 5 via a bearing. The end away from the center of the clamping cavity of the two transmission rods 12 is the outer end of the transmission rod 12. The fixing block 10 is rotatably connected to the other end of the transmission rod 12 via a bearing. The bottom wall of the fixing block 10 is welded to the top wall of the base 1. The gear 11 is welded to the surface of the rod of the transmission rod 12, and the gear 11 meshes with the gear ring 7 on the same side.

[0024] The transmission mechanism also includes pulleys 15 and belts 16. The pulleys 15 are welded to the left and right ends of the rotating rod 14 and the outer end of the transmission rod 12, respectively. The belts 16 are sleeved on two adjacent pulleys 15 on the vertical side. The guide pipe 9 is installed on the tank 6 for feeding and discharging materials. The discharge hole 8, which is located on the same vertical axis as the guide pipe 9, is opened on the top wall of the middle part of the base 1. Its purpose is to rotate the opening of the guide pipe 9 to align with the discharge hole 8 when discharging materials, so as to facilitate discharging.

[0025] Please see Figure 4 The rotating rod 14 has several stirring rods 17 evenly welded to its surface. All stirring rods 17 are located within the inner cavity of the tank 6. Two symmetrically distributed scrapers 18 are also located within the inner cavity of the tank 6. The outer wall of the scraper 18 is in contact with the inner wall of the tank 6. A connecting rod 19 is welded between the scraper 18 and the rotating rod 14. This connecting rod 19 allows the rotating rod 14 to rotate, driving the scraper 18 to rotate as well, thus scraping off the reactant material remaining on the inner wall of the tank 6 as the scraper 18 rotates around the rotating rod 14. Support legs 2 are welded to the four corners of the base 1's bottom wall. A mounting base 3 is welded to the top left wall of the base 1, and a motor 4 is mounted on the top wall of the mounting base 3.

[0026] The reactants for levulinic acid production are added to the tank 6 through the feed pipe 9. The motor 4 is started to drive the rotating rod 14 to rotate, which in turn drives the stirring rod 17 to mix the materials in the tank 6. Under the transmission action of the pulley 15 and the belt 16, the rotating rod 14 drives the transmission rod 12 to rotate as well. The transmission rod 12 drives the gear 11 to rotate. Since the gear 11 meshes with the gear ring 7 and the rotating rod 14 is connected to the hollow shaft 13 through a bearing, the rotation of the gear 11 will drive the tank 6 to rotate as well. The direction of rotation of the tank 6 is opposite to that of the rotating rod 14. Since the tank 6 is placed horizontally, the stirring rod 17 can mix the reactants in the tank 6 in all directions, avoiding the situation where the reactants are not mixed due to sedimentation, which is beneficial to improving the mixing quality.

[0027] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A reaction apparatus for the production of levulinic acid, comprising a base (1), characterized in that: Vertical plates (5) are fixed on both sides of the top wall of the base (1). A tank (6) is set in the cavity between the two vertical plates (5). Hollow shafts (13) are fixed on both sides of the tank (6). The two hollow shafts (13) are rotatably connected to the vertical plates (5) on both sides respectively. A rotating rod (14) is set on the top of the base (1). The rod of the rotating rod (14) passes through the inner cavity of the tank (6) and the shaft of the hollow shaft (13). The rotating rod (14) and the inner wall of the shaft of the hollow shaft (13) are rotatably connected by bearings. A motor (4) is connected to one end of the rotating rod (14). A transmission mechanism is set on the top of the base (1).

2. The reaction apparatus for producing levulinic acid according to claim 1, characterized in that: The transmission mechanism includes a gear ring (7), a fixing block (10), a gear (11), and a transmission rod (12). There are two gear rings (7), which are fixedly installed on the outer walls of both sides of the tank (6). There are two transmission rods (12), which are respectively located at the bottom of both sides of the tank (6). One end of the transmission rod (12) is inserted through the plate of the adjacent vertical plate (5) via a bearing. The fixing block (10) is rotatably connected to the other end of the transmission rod (12), and the bottom wall of the fixing block (10) is fixedly connected to the top wall of the base (1). The gear (11) is fixedly installed on the surface of the transmission rod (12), and the gear (11) meshes with the gear ring (7) on the same side.

3. The reaction apparatus for producing levulinic acid according to claim 2, characterized in that: The transmission mechanism also includes pulleys (15) and belts (16). The pulleys (15) are fixedly installed on the two ends of the rotating rod (14) and the outer end of the transmission rod (12). The belts (16) are sleeved on two adjacent pulleys (15) on the vertical side.

4. The reaction apparatus for producing levulinic acid according to claim 1, characterized in that: The tank (6) is equipped with a guide pipe (9), and the top wall of the middle part of the base (1) is provided with a discharge hole (8) located on the same vertical axis as the guide pipe (9).

5. The reaction apparatus for producing levulinic acid according to claim 1, characterized in that: The rotating rod (14) has several stirring rods (17) evenly fixedly installed on its surface. The stirring rods (17) are all located in the inner cavity of the tank (6). The inner cavity of the tank (6) is provided with two symmetrically distributed scrapers (18). The outer wall of the scraper (18) is in contact with the inner wall of the tank (6). The scraper (18) and the rotating rod (14) are fixedly connected by a connecting rod (19).

6. The reaction apparatus for producing levulinic acid according to claim 1, characterized in that: Support legs (2) are fixedly installed at the four corners of the bottom wall of the base (1), and mounting base (3) is fixedly installed on one side of the top wall of the base (1). The motor (4) is installed on the top wall of the mounting base (3).

Images