Controllable feeding structure of high-purity p-aminophenol

Abstract

The controllable feeding structure comprises a reaction kettle, a cover plate, a movable pipe, an air cylinder, a motor, a feeding mechanism, a fixed plate, a clamping block and a clamping plate, during use, when p-aminophenol needs to be added into the reaction kettle, the air cylinder drives the movable pipe to move downwards, the feeding mechanism is driven by the motor to rotate, and the fixed plate and the clamping plate are clamped through the clamping block, so that the p-aminophenol is fed into the reaction kettle. The feeding end of the feeding mechanism is aligned with the moving pipe, the air cylinder drives the moving pipe to move upwards to be connected with the conveying pipe at the feeding end in a sleeved mode, feeding is conducted on the reaction kettle through the feeding port in the feeding end, after feeding is completed, the air cylinder drives the moving pipe to move downwards, the motor drives the feeding mechanism to rotate, and the connecting end of the feeding mechanism is aligned with the moving pipe. The air cylinder drives the moving pipe to move upwards to be mutually sleeved with the sealing plug on the connecting end, so that the reaction kettle is automatically sealed, the internal sealing performance of the device during reaction is ensured, and the accuracy of an experimental result is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical production equipment, in particular to a controllable feeding structure for high-purity p-aminophenol. Background Art

[0002] p-Aminophenol is a kind of fine organic chemical intermediate widely used in my country. It is used in the dye industry to synthesize weak acid yellow 6G, weak acid yellow 5G, sulfur dark blue 3R, sulfur blue CV, sulfur brilliant green GB, sulfur red brown B3R, etc. It is used in the pharmaceutical industry to synthesize paracetamol, clofibrate, etc. It can also be used to prepare developers, antioxidants and additives.

[0003] p-Nitrophenol is an important chemical widely used in high-energy materials, dyes and medicine. However, during the production process, it was found that too low ethanol content would cause the product transmittance to be very low and the content would not meet the requirements. Therefore, it was necessary to study different ethanol solutions as solvents and then gradually add p-aminophenol to test the stability of product quality and the impact of impurities on the product. During the experiment, the experimenter needed to add a certain amount of p-aminophenol powder into the reactor step by step and then seal the reactor. The above steps needed to be repeated many times, and the operation process was relatively cumbersome. Utility Model Content

[0004] The utility model aims to provide a controllable feeding structure for high-purity p-aminophenol, so as to solve the technical problem in the prior art that an experimenter needs to add a quantitative amount of p-aminophenol powder into a reactor step by step and then seal the reactor, and the above steps need to be repeated many times, resulting in a relatively cumbersome operation process.

[0005] The technical problem to be solved by the utility model can be achieved through the following technical solutions:

[0006] A controllable feeding structure for high-purity p-aminophenol, comprising:

[0007] A cover plate, a reaction kettle is arranged under the cover plate, a sleeve pipe is embedded and fixedly connected to the cover plate, a moving pipe is movably sleeved in the sleeve pipe, a cylinder for driving the moving pipe to extend and retract in the sleeve pipe is arranged on the cover plate, a motor is fixedly connected to the cover plate, and a driving shaft is fixedly connected to the driving end of the motor;

[0008] The feeding mechanism includes a rotating seat, on which a transfer end is coaxially arranged and fixedly connected, the transfer end is fixedly connected to the driving shaft, the side end of the rotating seat is symmetrically arranged with a connecting end, the side end of the rotating seat is symmetrically arranged with a feeding end, the connecting end and the feeding end are evenly distributed on the peripheral side of the rotating seat in an annular manner, the feeding end and the feeding end are alternately distributed on the peripheral side of the rotating seat, a sealing plug is fixedly connected to the connecting end, a feeding pipe is arranged on the feeding end, and a dividing mechanism is arranged on the cover plate and the driving shaft to facilitate the alignment of the connecting end and the feeding end with the moving pipe.

[0009] As a further solution of the utility model: a feed port is provided on the feeding end, the feed port is communicated with the feed pipe, and connecting rods are evenly distributed in an annular shape and fixedly connected to the circumference of the rotating seat.

[0010] As a further solution of the utility model: the connecting end and the feeding end are both fixedly connected to the connecting rod.

[0011] As a further solution of the utility model: a through groove is opened through the cover plate, the cylinder is fixedly connected in the through groove, the driving end of the cylinder is fixedly connected with a telescopic rod, the outer side wall of the moving tube is fixedly connected with a connecting plate, and the connecting plate is fixedly connected to the telescopic rod.

[0012] As a further solution of the utility model: the dividing mechanism includes a fixed plate, a clamping block and a clamping plate, the clamping block is inserted through the sleeve and fixedly connected to the driving shaft, the fixed plate is fixedly connected to the cover plate, the clamping plate is fixedly connected to the fixed plate, and the clamping plate is clamped with the clamping block.

[0013] As a further solution of the utility model: the card plate is a U-shaped card plate, and the clamping block is a square clamping block with a circular ring transition around it.

[0014] Beneficial effects of the utility model:

[0015] 1. When the utility model is in use, when it is necessary to add para-aminophenol to the reactor, the cylinder drives the moving tube to move downward, the motor drives the feeding mechanism to rotate, the feeding end of the feeding mechanism is aligned with the moving tube, the cylinder drives the moving tube to move upward and the feeding tube on the feeding end is connected with each other, and the reactor is fed through the feeding port on the feeding end. After the feeding is completed, the cylinder drives the moving tube to move downward, the motor drives the feeding mechanism to rotate, the connecting end of the feeding mechanism is aligned with the moving tube, the cylinder drives the moving tube to move upward and the sealing plug on the connecting end is connected with each other, so as to realize automatic sealing of the reactor, ensure the internal sealing of the device during reaction, and improve the accuracy of the experimental results;

[0016] 2. In the utility model, when the motor drives the driving shaft to rotate, due to the restrictions of the clamping block and the clamping plate, the clamping plate is a U-shaped clamping plate, and the clamping block is a square clamping block with smooth transitions on all sides. The motor drives the feeding mechanism to rotate 90 degrees at a time. There are four connecting rods, and two are provided at the connecting end and the feeding end. The motor drives the feeding mechanism to rotate once just to realize the precise switching from the sealing plug to the feeding pipe or from the feeding pipe to the sealing plug, and realizes the precise positioning and socket connection of the feeding pipe, the sealing plug and the moving pipe. The device has a high degree of automation and is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described below in conjunction with the accompanying drawings.

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0019] Figure 2 It is a schematic diagram of the connection relationship of the cover plate, sleeve pipe, moving pipe, cylinder, motor, feeding mechanism and indexing mechanism of the utility model;

[0020] Figure 3 This utility model Figure 2 A schematic diagram of the enlarged structure in the middle;

[0021] Figure 4 This is a schematic diagram of the three-dimensional structure of the feeding mechanism of the utility model. Figure 1 ;

[0022] Figure 5 This is a schematic diagram of the three-dimensional structure of the feeding mechanism of the utility model. Figure 2 ;

[0023] Figure 6 The utility model is a structural schematic diagram of the connection relationship among a cover plate, a sleeve pipe, a movable pipe and a cylinder.

[0024] In the figure: 1. reactor; 2. cover plate; 3. sleeve tube; 4. moving tube; 5. through groove; 6. cylinder; 7. connecting plate; 8. telescopic rod; 9. motor; 10. feeding mechanism; 101. rotating seat; 102. adapter end; 103. connecting rod; 104. connecting end; 105. sealing plug; 106. feeding end; 107. feeding pipe; 11. fixing plate; 12. driving shaft; 13. clamping block; 14. clamping plate. DETAILED DESCRIPTION

[0025] 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 of 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.

[0026] like Figure 1-Figure 6 As shown, a controllable feeding structure of high-purity p-aminophenol comprises:

[0027] A cover plate 2, a reactor 1 is arranged below the cover plate 2, a sleeve pipe 3 is embedded and fixedly connected to the cover plate 2, a moving pipe 4 is movably sleeved in the sleeve pipe 3, a cylinder 6 for driving the moving pipe 4 to extend and retract in the sleeve pipe 3 is arranged on the cover plate 2, a motor 9 is fixedly connected to the cover plate 2, and a driving shaft 12 is fixedly connected to the driving end of the motor 9;

[0028] The feeding mechanism 10 includes a rotating seat 101, on which a transfer end 102 is coaxially arranged and fixedly connected, the transfer end 102 is fixedly connected to the driving shaft 12, a connecting end 104 is symmetrically arranged on the side end of the rotating seat 101, a feeding end 106 is symmetrically arranged on the side end of the rotating seat 101, the connecting end 104 and the feeding end 106 are evenly distributed in a ring around the rotating seat 101, the feeding end 106 and the feeding end 106 are alternately distributed around the rotating seat 101, a sealing plug 105 is fixedly connected to the connecting end 104, a feeding pipe 107 is arranged on the feeding end 106, and a dividing mechanism is arranged on the cover plate 2 and the driving shaft 12 to facilitate driving the connecting end 104 and the feeding end 106 to be aligned with the moving tube 4.

[0029] A feed port is provided on the feed end 106 , and the feed port is connected to the feed pipe 107 . Connecting rods 103 are evenly distributed in an annular shape around the rotating seat 101 and fixedly connected thereto. The connecting end 104 and the feed end 106 are both fixedly connected to the connecting rod 103 .

[0030] A through slot 5 is formed through the cover plate 2, a cylinder 6 is fixedly connected in the through slot 5, a telescopic rod 8 is fixedly connected to the driving end of the cylinder 6, a connecting plate 7 is fixedly connected to the outer wall of the moving tube 4, and the connecting plate 7 is fixedly connected to the telescopic rod 8.

[0031] The dividing mechanism includes a fixed plate 11, a clamping block 13 and a clamping plate 14. The clamping block 13 is inserted through and fixedly connected to the driving shaft 12. The fixed plate 11 is fixedly connected to the cover plate 2. The clamping plate 14 is fixedly connected to the fixed plate 11. The clamping plate 14 is clamped with the clamping block 13. The clamping plate 14 is a U-shaped clamping plate, and the clamping block 13 is a square clamping block with circular rings all around.

[0032] In some specific embodiments, four connecting rods 103 are provided, two connecting ends 104 are provided, and two feeding ends 106 are provided.

[0033] In order to facilitate the understanding of the embodiments of this solution by those skilled in the art, the working principle of this solution is briefly described in combination with specific application scenarios:

[0034] During use, when it is necessary to add para-aminophenol to the reactor 1, the cylinder 6 drives the movable tube 4 to move downward, and the motor 9 drives the feeding mechanism 10 to rotate, so that the feeding end 106 of the feeding mechanism 10 is aligned with the movable tube 4, and the cylinder 6 drives the movable tube 4 to move upward and to be sleeved with the feeding pipe 107 on the feeding end 106, and the reactor 1 is fed through the feeding port on the feeding end 106. After the feeding is completed, the cylinder 6 drives the movable tube 4 to move downward, and the motor 9 drives the feeding mechanism 10 to rotate, so that the connecting end 104 of the feeding mechanism 10 is aligned with the movable tube 4, and the cylinder 6 drives the movable tube 4 to move upward and to be sleeved with the sealing plug 105 on the connecting end 104, so as to realize automatic sealing of the reactor 1 and ensure that the reaction of the device is completed. The sealing of the parts is improved, and the accuracy of the experimental results is improved. When the motor 9 drives the driving shaft 12 to rotate, due to the restrictions of the clamping block 13 and the clamping plate 14, the clamping plate 14 is a U-shaped clamping plate, and the clamping block 13 is a square clamping block with smooth transition on all sides. The motor 9 drives the feeding mechanism 10 to rotate 90 degrees at a time. There are four connecting rods 103, and two connecting ends 104 and feeding ends 106 are respectively provided. The motor 9 drives the feeding mechanism 10 to rotate once at a time to achieve accurate switching from the sealing plug 105 to the feeding pipe 107 or from the feeding pipe 107 to the sealing plug 105, and realizes the accurate positioning and socket connection of the feeding pipe 107 and the sealing plug 105 with the moving pipe 4. The device has a high degree of automation and is easy to use.

[0035] Several embodiments of the utility model are described in detail above, but the embodiments of the utility model are not limited to them and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. A controllable feeding structure for high-purity p-aminophenol, characterized in that: include: A cover plate (2), a reaction kettle (1) is arranged below the cover plate (2), a sleeve pipe (3) is embedded and fixedly connected to the cover plate (2), a moving pipe (4) is movably sleeved in the sleeve pipe (3), a cylinder (6) is arranged on the cover plate (2) for driving the moving pipe (4) to extend and retract in the sleeve pipe (3), a motor (9) is fixedly connected to the cover plate (2), and a driving shaft (12) is fixedly connected to the driving end of the motor (9); The feeding mechanism (10) comprises a rotating seat (101), a transfer end (102) is coaxially arranged on the rotating seat (101) and fixedly connected, the transfer end (102) is fixedly connected to the driving shaft (12), a connecting end (104) is symmetrically arranged on the side end of the rotating seat (101), a feeding end (106) is symmetrically arranged on the side end of the rotating seat (101), and the connecting end (104) and the feeding end (106) are evenly distributed in an annular manner on the rotating seat (101). The feed end (106) and the feed end (106) are alternately distributed on the circumferential side of the rotating seat (101), a sealing plug (105) is fixedly connected to the connecting end (104), a feeding pipe (107) is arranged on the feeding end (106), and a dividing mechanism is arranged on the cover plate (2) and the driving shaft (12) to facilitate driving the connecting end (104) and the feed end (106) to align with the moving pipe (4).

2. A controllable feeding structure for high-purity p-aminophenol according to claim 1, characterized in that: A feeding port is provided on the feeding end (106), and the feeding port is communicated with the feeding pipe (107). Connecting rods (103) are evenly distributed in an annular pattern around the rotating seat (101) and are fixedly connected thereto.

3. A controllable feeding structure for high-purity p-aminophenol according to claim 2, characterized in that: The connecting end (104) and the feeding end (106) are both fixedly connected to the connecting rod (103).

4. The controllable feeding structure of high-purity p-aminophenol according to claim 1, characterized in that: A through slot (5) is formed through the cover plate (2), a cylinder (6) is fixedly connected in the through slot (5), a telescopic rod (8) is fixedly connected to the driving end of the cylinder (6), a connecting plate (7) is fixedly connected to the outer wall of the moving tube (4), and the connecting plate (7) is fixedly connected to the telescopic rod (8).

5. A controllable feeding structure for high-purity p-aminophenol according to claim 1, characterized in that: The indexing mechanism comprises a fixed plate (11), a clamping block (13) and a clamping plate (14); the clamping block (13) is sleeved through and fixedly connected to the driving shaft (12); the fixed plate (11) is fixedly connected to the cover plate (2); the clamping plate (14) is fixedly connected to the fixed plate (11); and the clamping plate (14) is clamped to the clamping block (13).

6. A controllable feeding structure for high-purity p-aminophenol according to claim 5, characterized in that: The clamping plate (14) is a U-shaped clamping plate, and the clamping block (13) is a square clamping block with circular rings on all sides.

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