Quantitative catalyst adding device for preparing 3-methyl-2-aminobenzoic acid

Abstract

The utility model discloses a quantitative catalyst adding device for preparing 3-methyl-2-aminobenzoic acid, and relates to the technical field of catalyst adding equipment. The device comprises a platform, one side of the top of the platform is fixedly connected with a right-angle frame, and the top of the platform is fixedly connected with a support. A feeding assembly is arranged at the top of the platform and comprises a rotary disc, and the rotary disc is movably connected to an inner cavity of the platform. The motor drives the rotating rod so as to drive the driving rod at the top of the rotating disc to rotate, the driving rod is clamped with the special-shaped groove in the inner cavity of the rotating wheel, it is ensured that the driving rod can stably drive the rotating disc on the surface of the driven rod to rotate, and a catalyst in the rotating disc gradually moves to the discharging opening along with rotation of the circular groove along with rotation of the rotating disc. The catalyst is accurately and quantitatively added into the reaction equipment, smooth conveying of the catalyst is ensured, and adding errors caused by instability of manual or traditional conveying equipment are reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of catalyst adding equipment, in particular to a catalyst quantitative adding device for preparing 3-methyl-2-aminobenzoic acid. Background Art

[0002] The catalyst for 3-methyl-2-aminobenzoic acid generally refers to the catalyst used in its synthesis reaction, which is used to accelerate the reaction rate and improve the selectivity of the product. The main function of the catalyst is to increase the conversion efficiency of the reactants, control the reaction path, reduce the formation of by-products, and improve the selectivity of the product. For example, transition metal catalysts, Lewis acids, Bronsted acids and other catalysts are often used in the functionalization reaction of aromatic compounds and have high application value in the synthesis of aminobenzoic acid derivatives.

[0003] The catalyst for 3-methyl-2-aminobenzoic acid in the prior art is typically a solid powdered metal catalyst or acid catalyst. When added to the reaction equipment, it is usually added manually or by external conveying equipment. However, when the catalyst is added manually or by conveying equipment, there is a certain degree of uncertainty. The amount of catalyst added may be too much or too little, thereby affecting the normal progress of the reaction. In addition, the powdered catalyst is easily affected by temperature and humidity during storage, and is prone to agglomeration or adhesion, which can cause blockage of the catalyst addition port and thus affect the accuracy of quantitative addition.

[0004] To this end, we provide a catalyst quantitative addition device for preparing 3-methyl-2-aminobenzoic acid to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a quantitative addition device for a catalyst for preparing 3-methyl-2-aminobenzoic acid. By cooperating with a feeding component and an anti-blocking component, the utility model solves the problems in the prior art of preparing 3-methyl-2-aminobenzoic acid, such as the problem that manual addition of a catalyst easily results in an unstable addition amount and the problem that the storage area is easily blocked by agglomerated catalyst.

[0006] In order to solve the above technical problems, the present invention is achieved through the following technical solutions.

[0007] The utility model discloses a quantitative catalyst adding device for preparing 3-methyl-2-aminobenzoic acid, comprising a platform, wherein one side of the top of the platform is fixedly connected to a right-angle frame, and the top of the platform is fixedly connected to a bracket; a feeding component is provided on the top of the platform, and the feeding component comprises a turntable, which is movably connected to the inner cavity of the platform, a passive rod is fixedly connected to the top of the turntable, a rotating wheel is fixedly connected to the surface of the passive rod, a rotating rod is movably connected to the inner cavity of the bracket, one side of the surface of the rotating rod is fixedly connected to a rotating disk, and both sides of the top of the rotating disk are fixedly connected to driving rods; an anti-blocking component is provided on one side of the right-angle frame, and the anti-blocking component comprises a feeding barrel, which is fixedly connected to one side of the right-angle frame, one side of the feeding barrel is connected to an air blowing barrel, the inner cavity of the air blowing barrel is slidably connected to a piston, and one side of the piston is fixedly connected to a push rod.

[0008] The present invention is further configured such that a push plate is fixedly connected to the surface of the rotating rod, and one side of the push plate is slidably connected to one end of the push rod.

[0009] The utility model is further configured as follows: a feeding port is provided at the bottom of the feeding cylinder, a metering valve is installed on the surface of the feeding port, a circular groove is provided in the inner cavity of the turntable, and a feeding circular hole is provided on one side of the top of the platform.

[0010] The utility model is further configured such that a motor is fixedly connected to the top of the bracket, and an output end of the motor is fixedly connected to one end of the rotating rod.

[0011] The utility model is further configured such that a discharge outlet is provided at one side of the bottom of the platform, and a receiving bucket is connected to the surface of the discharge outlet.

[0012] The utility model is further configured such that a tension spring is fixedly connected to one side of the piston, and one end of the tension spring is fixedly connected to one side of the inner cavity of the blowing tube.

[0013] The present invention is further configured such that the top of the feeding cylinder is connected to a feeding pipe, and a valve is installed on the surface of the feeding pipe.

[0014] The present invention is further configured such that special-shaped grooves are formed around the inner cavity of the rotating wheel, and the surface of the driving rod is slidably connected to the inner cavity of the special-shaped groove.

[0015] The utility model has the following beneficial effects.

[0016] 1. The utility model drives the rotating rod through a motor, thereby driving the driving rod on the top of the rotating disk to rotate. The driving rod engages with the special-shaped groove in the inner cavity of the runner, ensuring that the driving rod can stably drive the turntable on the surface of the passive rod to rotate. As the turntable rotates, the catalyst in the turntable gradually moves to the discharge port as the circular groove rotates, realizing the accurate and quantitative addition of the catalyst into the reaction equipment, ensuring the smooth transportation of the catalyst and reducing the addition error caused by the instability of manual or traditional transportation equipment.

[0017] 2. The utility model can rotate the push plate by rotating the rotating rod. When the push plate rotates, it can squeeze the push rod, thereby driving the piston to move toward the inner cavity of the feeding barrel, and can blow air into the solid powder catalyst in the inner cavity of the feeding barrel to prevent the catalyst from accumulating and agglomerating, resulting in clogging of the discharge port. In addition, by using a tension spring, the piston can automatically reset after the push plate and the push rod are separated. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for describing the embodiments.

[0019] Figure 1 The present invention is a three-dimensional diagram of a catalyst quantitative addition device for preparing 3-methyl-2-aminobenzoic acid.

[0020] Figure 2 The figure is a cross-sectional view of a platform in a device for quantitatively adding a catalyst for preparing 3-methyl-2-aminobenzoic acid.

[0021] Figure 3 This is an exploded view of the internal structure of the platform in a catalyst quantitative addition device for preparing 3-methyl-2-aminobenzoic acid.

[0022] Figure 4 This is a schematic diagram of the surface structure of a support in a catalyst quantitative addition device for preparing 3-methyl-2-aminobenzoic acid.

[0023] Figure 5 This is an exploded view of the surface of the rotating rod in a catalyst quantitative addition device for preparing 3-methyl-2-aminobenzoic acid.

[0024] In the attached figure: 1. Platform; 2. Right-angle frame; 3. Bracket; 4. Turntable; 5. Passive rod; 6. Rotating wheel; 7. Rotating rod; 8. Rotating disk; 9. Driving rod; 10. Feeding cylinder; 11. Blowing cylinder; 12. Piston; 13. Push rod; 14. Push plate; 15. Metering valve; 16. Motor; 17. Receiving bucket; 18. Tension spring; 19. Feeding pipe. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described below in conjunction with the drawings in the embodiments of the present invention. The described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0026] Example 1

[0027] See also Figure 1-5The utility model is a quantitative catalyst addition device for preparing 3-methyl-2-aminobenzoic acid, comprising a platform 1, a right-angle frame 2 being fixedly connected to one side of the top of the platform 1, and a bracket 3 being fixedly connected to the top of the platform 1; a feeding assembly is provided on the top of the platform 1, and the feeding assembly comprises a turntable 4, which is movably connected to the inner cavity of the platform 1, a passive rod 5 being fixedly connected to the top of the turntable 4, a runner 6 being fixedly connected to the surface of the passive rod 5, a rotating rod 7 being movably connected to the inner cavity of the bracket 3, a rotating disk 8 being fixedly connected to one side of the surface of the rotating rod 7, and driving rods 9 being fixedly connected to both sides of the top of the rotating disk 8; an anti-blocking assembly is provided on one side of the right-angle frame 2, the anti-blocking assembly comprises a feeding cylinder 10, the feeding cylinder 10 is fixedly connected to one side of the right-angle frame 2, one side of the feeding cylinder 10 is connected to a blowing cylinder 11, a piston 12 is slidably connected to the inner cavity of the blowing cylinder 11, and a push rod 13 is fixedly connected to one side of the piston 12.

[0028] Specifically: the top and bottom of the turntable 4 rotate in close contact with the top and bottom of the inner cavity of the platform 1 to prevent the added catalyst from spilling when the turntable 4 rotates. One end of the rotating rod 7 is rotatably connected to the top of the platform 1 through a rotating shaft. One side of the blowing cylinder 11 is a through hole for air intake, and the other side is fixedly connected to a side plate for the installation of a tension spring 18. The piston 12 can automatically reset under the drive of the tension spring 18 to facilitate the subsequent secondary blowing of air into the feeding cylinder 10 to disperse the catalyst. One end of the passive rod 5 extends to the outside of the platform 1.

[0029] Example 2

[0030] See also Figure 1-5 On the basis of Example 1, a push plate 14 is fixedly connected to the surface of the rotating rod 7, and one side of the push plate 14 is slidably connected to one end of the push rod 13. A discharge port is provided at the bottom of the feeding cylinder 10, and a metering valve 15 is installed on the surface of the discharge port. A circular groove is provided in the inner cavity of the turntable 4, and a discharge circular hole is provided on the top side of the platform 1. A motor 16 is fixedly connected to the top of the bracket 3, and the output end of the motor 16 is fixedly connected to one end of the rotating rod 7. A discharge port is provided on one side of the bottom of the platform 1, and a receiving bucket 17 is connected to the surface of the discharge port. A tension spring 18 is fixedly connected to one side of the piston 12, and one end of the tension spring 18 is fixedly connected to one side of the inner cavity of the blowing cylinder 11. A feeding pipe 19 is connected to the top of the feeding cylinder 10, and a valve is installed on the surface of the feeding pipe 19. Special-shaped grooves are provided all around the inner cavity of the runner 6, and the surface of the driving rod 9 is slidably connected to the inner cavity of the special-shaped groove.

[0031] Specifically: a slope is provided on one side of the push plate 14 to facilitate the squeezing of the push rod 13. The inner cavity of the discharge port is slightly smaller than the inner cavity of the circular groove and the discharge circular hole to facilitate the introduction of the catalyst into the circular groove. There are four circular grooves distributed around the inner cavity of the turntable 4. The metering valve 15 accurately controls the flow rate of the fluid by adjusting the channel opening of the fluid to ensure that the flow of the fluid meets the required standards and requirements. A fixed amount of catalyst can be output to the reaction equipment through the discharge port and the receiving bucket 17. The main function of the tension spring 18 is to drive the piston 12 to reset. The special-shaped groove enables the drive rod 9 to drive the wheel 6 to rotate ninety degrees to facilitate the rotation of the turntable 4 to different positions.

[0032] The working principle of the present invention is as follows: when it is necessary to add a quantitative amount of catalyst for preparing 3-methyl-2-aminobenzoic acid, the catalyst is first introduced into the feeding cylinder 10 through the valve and the feeding pipe 19, and then the quantitative catalyst is introduced into the circular groove through the discharge port and the discharge circular hole through the metering valve 15.

[0033] Then the motor 16 can be started through the external controller, and the motor 16 drives the rotating rod 7 to rotate, and the rotating rod 7 drives the rotating disk 8 to rotate, and the rotating disk 8 drives the driving rod 9 to rotate. The surface of the driving rod 9 is engaged with the special-shaped groove of the runner 6, and drives the runner 6 to rotate, and the runner 6 drives the passive rod 5 to rotate, and the passive rod 5 drives the turntable 4 to rotate. When the turntable 4 rotates half a circle, the circular groove containing the quantitative catalyst can be rotated to the discharge port, and the catalyst is guided to the inside of the preparation reaction equipment through the discharge port and the receiving bucket 17, so as to complete the quantitative addition work, and at this time, the other circular groove of the turntable 4 is rotated to the discharge circular hole to facilitate the next quantitative addition of catalyst.

[0034] When the rotating rod 7 rotates, it also drives the push plate 14 to rotate. The rotation of the push plate 14 will squeeze the push rod 13, causing the push rod 13 to move toward the inner cavity of the blowing cylinder 11. The push rod 13 drives the piston 12 to move, thereby blowing air into the feeding cylinder 10, so that the powdered catalyst can be dispersed to prevent accumulation and blockage of the discharge port. After the piston 12 is pushed, the push plate 14 is separated from the push rod 13, and the elasticity of the tension spring 18 itself can automatically reset the piston 12 and the push rod 13.

[0035] The standard parts used in the present invention can all be purchased from the market, and can be customized according to the description in the specification and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology. The control method is automatically controlled by a control unit. The control circuit of the control unit can be implemented by simple programming by technicians in this field, which is common knowledge in this field. Therefore, the control method and circuit connection are no longer explained in detail in the present invention.

[0036] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the present invention to only the specific implementation methods described. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that technicians in the relevant technical field can better understand and utilize the present invention.

Claims

1. A catalyst quantitative addition device for preparing 3-methyl-2-aminobenzoic acid, comprising a platform (1), characterized in that: A right-angle frame (2) is fixedly connected to one side of the top of the platform (1), and a bracket (3) is fixedly connected to the top of the platform (1); A feeding assembly is provided on the top of the platform (1), and the feeding assembly includes a turntable (4), the turntable (4) is movably connected to the inner cavity of the platform (1), a passive rod (5) is fixedly connected to the top of the turntable (4), a rotating wheel (6) is fixedly connected to the surface of the passive rod (5), a rotating rod (7) is movably connected to the inner cavity of the bracket (3), a rotating disk (8) is fixedly connected to one side of the surface of the rotating rod (7), and driving rods (9) are fixedly connected to both sides of the top of the rotating disk (8); An anti-blocking component is provided on one side of the right-angle frame (2), and the anti-blocking component includes a feeding cylinder (10). The feeding cylinder (10) is fixedly connected to one side of the right-angle frame (2). One side of the feeding cylinder (10) is connected to a blow cylinder (11). The inner cavity of the blow cylinder (11) is slidably connected to a piston (12), and one side of the piston (12) is fixedly connected to a push rod (13).

2. A catalyst quantitative addition device for preparing 3-methyl-2-aminobenzoic acid according to claim 1, characterized in that: A push plate (14) is fixedly connected to the surface of the rotating rod (7), and one side of the push plate (14) is slidably connected to one end of the push rod (13).

3. A catalyst quantitative addition device for preparing 3-methyl-2-aminobenzoic acid according to claim 1, characterized in that: The bottom of the feeding cylinder (10) is provided with a discharge port, and a metering valve (15) is installed on the surface of the discharge port. The inner cavity of the turntable (4) is provided with a circular groove, and one side of the top of the platform (1) is provided with a discharge circular hole.

4. A catalyst quantitative addition device for preparing 3-methyl-2-aminobenzoic acid according to claim 1, characterized in that: A motor (16) is fixedly connected to the top of the bracket (3), and an output end of the motor (16) is fixedly connected to one end of the rotating rod (7).

5. A catalyst quantitative addition device for preparing 3-methyl-2-aminobenzoic acid according to claim 1, characterized in that: A discharge outlet is provided on one side of the bottom of the platform (1), and a receiving bucket (17) is connected to the surface of the discharge outlet.

6. A catalyst quantitative addition device for preparing 3-methyl-2-aminobenzoic acid according to claim 1, characterized in that: A tension spring (18) is fixedly connected to one side of the piston (12), and one end of the tension spring (18) is fixedly connected to one side of the inner cavity of the blowing cylinder (11).

7. A catalyst quantitative addition device for preparing 3-methyl-2-aminobenzoic acid according to claim 1, characterized in that: The top of the feeding cylinder (10) is connected to a feeding pipe (19), and a valve is installed on the surface of the feeding pipe (19).

8. A catalyst quantitative addition device for preparing 3-methyl-2-aminobenzoic acid according to claim 1, characterized in that: Special-shaped grooves are formed around the inner cavity of the rotating wheel (6), and the surface of the driving rod (9) is slidably connected to the inner cavity of the special-shaped grooves.

Images