Feeding device of continuous acidolysis reactor

Abstract

The utility model belongs to the technical field of titanium dioxide chemical industry, and relates to a feeding device of a continuous acidolysis reactor, which comprises a reaction cylinder, a mixture feeding pipeline and an initiating acid feeding pipeline, the top surface of the reaction cylinder is fixedly connected with the initiating acid feeding pipeline, the mixture feeding pipeline is inserted on the initiating acid feeding pipeline, and the initiating acid feeding pipeline is connected with the reaction cylinder. A pipeline protecting and cleaning assembly is arranged at a discharging port of the mixture feeding pipeline, a stirring device is installed in the reaction cylinder, and a discharging port is formed in the edge of the bottom of an inner cavity of the reaction cylinder. According to the utility model, a sleeve feeding mode is formed by the mixture feeding pipeline and the initiating acid feeding pipeline, so that the mixture feeding pipeline and the initiating acid feeding pipeline are synergistically fed without influencing each other, and scabs formed by premature reaction of the mixture and the initiating acid in the pipelines are effectively avoided; and the pipeline protecting and cleaning assembly is used for further preventing scabbing and blocking at the outlet of the mixture feeding pipeline, so that the production efficiency of the continuous acidolysis reactor is improved, and the downtime is shortened.

Description

TECHNICAL FIELD

[0001] The utility model relates to titanium dioxide chemical technology field especially relates to a continuous acidolysis reactor feeding device. BACKGROUND

[0002] In the production process of titanium dioxide, the continuous acidolysis reactor is a commonly used equipment, which can realize the continuous reaction of mixed liquid and initiating acid, has the advantages of high production efficiency, stable reaction and the like. As an important component of the continuous acidolysis reactor, the feeding device mainly functions to continuously feed the mixed material and initiating acid participating in the reaction into the acidolysis reactor according to a predetermined ratio, so as to ensure that the reaction can be continuously and stably carried out.

[0003] However, the continuous acidolysis reactor feeding pipeline is usually located inside the reactor, and the mixed material and initiating acid prematurely react in the reactor pipeline during the conveying process, resulting in the adhesion of materials to the feeding device and the formation of scabs that are difficult to remove. These scabs not only increase the resistance of material flow, but also accelerate the wear and blockage of the pipeline, which not only affects the normal operation of the reactor and reduces the production efficiency, but also may cause safety accidents and bring unnecessary losses to chemical production. SUMMARY

[0004] In order to solve the above technical problems, the utility model provides a continuous acidolysis reactor feeding device.

[0005] The technical scheme of the utility model is implemented through the following scheme: a continuous acidolysis reactor feeding device, comprising a reaction cylinder, a mixed material feeding pipeline and an initiating acid feeding pipeline, the top surface of the reaction cylinder is fixedly connected with the initiating acid feeding pipeline, the mixed material feeding pipeline is inserted into the initiating acid feeding pipeline, a pipeline protection and cleaning assembly is arranged at the discharge port of the mixed material feeding pipeline, a stirring device is installed in the reaction cylinder, and a discharge port is formed at the edge position of the bottom of the inner cavity of the reaction cylinder.

[0006] Through the above technical scheme, the mixed material feeding pipeline and the initiating acid feeding pipeline are arranged in a sleeve feeding mode, the collaborative feeding of the two is realized without affecting each other, the scabs formed by the premature reaction of the mixed material and the initiating acid in the pipeline are effectively avoided, the scabs at the outlet of the mixed material feeding pipeline are further prevented from being blocked by the pipeline protection and cleaning assembly, the production efficiency of the continuous acidolysis reactor is improved, and the downtime is reduced.

[0007] Preferably, the pipeline protection and cleaning assembly is arranged at the center of the discharge port of the mixed material feeding pipeline through the support frame.

[0008] As preferred, the pipeline protection cleaning assembly comprises a protection shell, a rotating fan and a cleaning piece, the protection shell is internally provided with a driving motor, the driving end of the driving motor is connected with the rotating fan through a transmission roller, and the end of the rotating fan is abutted against the inner wall of the mixed material feeding pipeline through the cleaning piece.

[0009] As preferred, the driving motor driving line is externally connected with a driving power source through a motor lead pipe, and the motor lead pipe penetrates through the sidewall of the mixed material feeding pipeline.

[0010] Through the above technical scheme, the pipeline protection cleaning assembly is erected at the center position of the mixed material feeding pipeline discharge port through the support frame, so that the cleaning assembly can more effectively and uniformly clean the inner wall of the pipeline, while the stability of the structure is ensured, the motor lead pipe not only ensures the stable supply of the power source, but also avoids the safety hazards that may be caused by the exposed wires.

[0011] As preferred, the stirring device comprises a stirring motor, a stirring fan and a bottom sweeping fan, the stirring motor is embedded in the bottom of the reaction cylinder, and the driving end of the stirring motor is connected with the stirring fan and the bottom sweeping fan through transmission rollers.

[0012] As preferred, an electric valve is arranged on the discharge port.

[0013] Through the above technical scheme, the stirring device ensures that the materials in the reaction cylinder can be fully and uniformly stirred, while the bottom sweeping fan is driven to ensure that the materials at the bottom of the cylinder can also be effectively turned over, thereby avoiding the problems of material deposition and caking, and the comprehensive stirring helps the full chemical reaction, improves the reaction efficiency and product quality, and the bottom sweeping fan can also assist in discharging to ensure efficient discharging.

[0014] In summary, the utility model has the following beneficial effects:

[0015] 1. The utility model discloses a mixed material feeding pipeline and an initiation acid feeding pipeline are arranged to form a sleeve feeding mode, the collaborative feeding of the two is realized without affecting each other, the scarring formed by the early reaction of the mixed material and the initiation acid in the pipeline is effectively avoided, the pipeline protection cleaning assembly is further used to prevent the scarring and blockage at the outlet of the mixed material feeding pipeline, the production efficiency of the continuous acidolysis reactor is improved, and the downtime is reduced.

[0016] 2. The pipeline protection cleaning assembly is erected at the center position of the mixed material feeding pipeline discharge port through the support frame, so that the cleaning assembly can more effectively and uniformly clean the inner wall of the pipeline, while the stability of the structure is ensured, the motor lead pipe not only ensures the stable supply of the power source, but also avoids the safety hazards that may be caused by the exposed wires.

[0017] 3. The stirring device ensures that the materials in the reaction cylinder can be fully and uniformly stirred, and drives the bottom sweeping fan to ensure that the materials at the bottom of the cylinder can also be effectively turned over, avoiding the problems of material deposition and caking, and the overall stirring helps the full chemical reaction, improves the reaction efficiency and product quality, and the bottom sweeping fan can also assist in discharging to ensure efficient discharging. BRIEF DESCRIPTION OF DRAWINGS

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

[0019] Figure 2 is a mixed material feeding pipeline and initiator acid feeding pipeline split structure schematic diagram of the utility model;

[0020] Figure 3 is a mixed material feeding pipeline and initiator acid feeding pipeline assembly structure schematic diagram of the utility model;

[0021] Figure 4 is a mixed material feeding pipeline and initiator acid feeding pipeline split structure schematic diagram of the utility model;

[0022] Figure 5 is a three-dimensional structure schematic diagram of the pipeline protection and cleaning assembly of the utility model;

[0023] Figure 6 is a reaction cylinder internal structure schematic diagram of the utility model.

[0024] The figure mark explanation: 1, reaction cylinder;2, mixed material feeding pipeline;3, initiator acid feeding pipeline;4, pipeline protection and cleaning assembly;41, protection shell;42, rotating fan;43, cleaning piece;5, stirring device;51, stirring motor;52, stirring fan;53, bottom sweeping fan;6, discharge port;7, motor lead tube. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned purpose, features and advantages of the utility model more clearly understood, the utility model is further explained below in combination with the drawings and examples.

[0026] In the following description, many specific details are set forth in order to fully understand the utility model, but the utility model can also be implemented in other ways different from the description herein, therefore, the utility model is not limited to the specific examples disclosed in the following specification, the utility model is further explained in detail below in combination with the drawings.

[0027] A continuous acidolysis reactor feeding device, such as Figures 1-6As shown, it comprises a reaction cylinder 1, a mixed material feeding pipe 2 and an initiating acid feeding pipe 3, the top surface of the reaction cylinder 1 is fixedly connected with the initiating acid feeding pipe 3, the mixed material feeding pipe 2 is inserted on the initiating acid feeding pipe 3, the mixed material feeding pipe 2 is provided with a pipe protection and cleaning assembly 4, a stirring device 5 is installed in the reaction cylinder 1, a discharge port 6 is formed at the edge position of the inner cavity bottom of the reaction cylinder 1, the initiating acid feeding pipe 3 and the mixed material feeding pipe 2 adopt a sleeve feeding mode, the mixed material and the initiating acid are respectively fed through the sleeves, mixed at the bottom of the sleeves, and the early mixing is avoided to cause the blockage of the feeding pipe, and the mixed material feeding pipe 2 is fixed through the flange on the mixed material feeding pipe 2, the mixed material feeding pipe 2 is longer than the initiating acid feeding pipe 3, the mixed material and the initiating acid are mixed more uniformly, so that the acidolysis reaction rate is improved, and the material adhered to the inner wall of the mixed material feeding pipe 2 after the material reaction is cleaned through the pipe protection and cleaning assembly 4, so that the complexity of the maintenance work is reduced, the mixed material feeding pipe 2 can be pulled out from the initiating acid feeding pipe 3 for overall maintenance only by disassembling the flange bolt, the discharge port 6 is provided with an electric valve, the discharge port 6 is obliquely formed, so that the material can be conveniently discharged, the discharge is controlled through the electric valve, the inner diameter of the initiating acid feeding pipe 3 is slightly larger than the diameter of the mixed material feeding pipe 2, the mixed material feeding pipe 2 forms a sleeve structure after being inserted, the inlet of the initiating acid feeding pipe 3 is formed in the side wall, the mixed material feeding pipe 2 is inserted from the center position of the top surface of the initiating acid feeding pipe 3, the initiating acid feeding pipe 3 is provided with a through hole matched therefor, and a bolt hole matched with the flange of the mixed material feeding pipe 2 is formed beside the through hole, and the flange is fixed.

[0028] The pipe protection and cleaning assembly 4 is erected at the center position of the discharge port 6 of the mixed material feeding pipe 2 through a support frame, the pipe protection and cleaning assembly 4 comprises a protection shell 41, a rotating fan 42 and a cleaning piece 43, a driving motor is arranged in the protection shell 41, the driving end of the driving motor is connected with the rotating fan 42 through a transmission roller, the end of the rotating fan 42 abuts against the inner wall of the mixed material feeding pipe 2 through the cleaning piece 43, the cleaning piece 43 adopts a PP material brush plate, which has excellent heat resistance, pressure resistance and chemical corrosion resistance, and has high strength, can withstand a certain pressure, can resist the impact and friction of the mixed material in the cleaning process, prolongs the service life, the protection shell 41 covers the driving motor, and the side of the protection shell 41 facing the feeding port is provided with a 45-degree inclined chamfer, and the side of the support frame facing the feeding port is also provided with a 45-degree inclined angle, so that the material can smoothly flow when feeding, and the material is prevented from being accumulated and crushed on the protection shell 41 and the support frame when feeding, the support frame and the mixed material feeding pipe 2 are an integral structure, the number of the support frames is preferably four, and the support frames are erected in a cross shape to support the protection shell 41, the cleaning piece 43 is matched with the mixed material feeding pipe 2 in shape, and the cleaning piece 43 can closely adhere to the inner wall of the pipe, so that the cleaning effect is maximized.

[0029] The driving motor driving wire is connected with the driving power source through the motor lead pipe 7, the motor lead pipe 7 penetrates the sidewall of the mixed material feeding pipe 2, the motor lead pipe 7 and the protective shell 41 are made of aluminum alloy material, the aluminum alloy has high strength and good corrosion resistance, and is light, the motor lead pipe 7 is also provided with a chamfer to prevent material accumulation, and the whole is in the shape of "7", the vertical section is connected with the protective shell 41, the horizontal section is connected with the mixed material feeding pipe 2, and the corner is a circular chamfer, the driving motor driving wire is arranged in the motor lead pipe 7 during production, and the driving motor driving wire is arranged in the motor lead pipe 7 until the driving motor driving wire is arranged out of the outlet, the driving power source is connected with the driving motor to drive the driving motor, and the motor lead pipe 7 effectively protects the safety hidden danger caused by the exposed wire of the driving motor.

[0030] The stirring device 5 comprises a stirring motor 51, stirring fans 52 and a bottom material sweeping fan 53, the stirring motor 51 is embedded in the bottom of the reaction cylinder 1, the driving end of the stirring motor 51 is connected with the stirring fans 52 and the bottom material sweeping fan 53 through transmission rollers, the number of the stirring fans 52 is preferably two, the two stirring fans 52 and the bottom material sweeping fan 53 can accelerate the mixing and dissolution of the material, and the local concentration is avoided to be too high or too low, the bottom material sweeping fan 53 is close to the bottom of the reaction cylinder 1 and rotates synchronously with the stirring fans 52, the material attached to the bottom of the reaction cylinder 1 can be effectively scraped and mixed into the material again, the uniformity and completeness of the material mixing are ensured, and when the material is discharged, the sweeping of the bottom material sweeping fan 53 makes the material discharge efficiently.

[0031] Working principle: the initiator is fed into the reaction cylinder 1 through the initiator feeding pipe 3 along the pipe wall, the mixed material is fed into the reaction cylinder 1 through the mixed material feeding pipe 2, the length of the internal mixed material feeding pipe 2 is greater than that of the initiator feeding pipe 3, the mixed material and the initiator are fed through the sleeve respectively, the initiator enters the reaction cylinder 1 first, and then the mixed material enters the reaction cylinder 1 to react, and the driving motor is further started to drive the rotating fan 42 to rotate to clean the inner wall of the mixed material feeding pipe 2 outlet to avoid blockage;

[0032] The stirring device 5 makes the material fully mixed and dissolved, finally the electric valve is opened to discharge the material, at this time, the bottom material sweeping fan 53 assists the material discharge to realize efficient material discharge.

[0033] The above is only a preferred embodiment of the present application, and is not intended to limit the present application in other forms, any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments applied to other fields, but any simple modification, equivalent change made on the basis of the technical essence of the present application to the above embodiments still belongs to the protection scope of the technical scheme of the present application.

Claims

1. A continuous acid hydrolysis reactor feed apparatus, characterized by: Including reaction cylinder (1), mixed material feeding pipe (2) and initiation acid feeding pipe (3), the top surface of the reaction cylinder (1) is fixedly connected with the initiation acid feeding pipe (3), the mixed material feeding pipe (2) is inserted on the initiation acid feeding pipe (3), the mixed material feeding pipe (2) is provided with pipe protection cleaning assembly (4) at the discharge port (6), the reaction cylinder (1) is provided with stirring device (5), and the edge position of the bottom of the inner cavity of the reaction cylinder (1) is provided with discharge port (6).

2. A continuous acid hydrolysis reactor feed apparatus according to claim 1, wherein: The pipe protection cleaning assembly (4) is erected at the center position of the discharge port (6) of the mixed material feeding pipe (2) through the support frame.

3. A continuous acid hydrolysis reactor feed apparatus according to claim 2, wherein: The pipe protection cleaning assembly (4) includes protective shell (41), rotating fan (42) and cleaning piece (43), the protective shell (41) is provided with driving motor, the driving end of the driving motor is connected with the rotating fan (42) through transmission roller, and the end of the rotating fan (42) is abutted with the inner wall of the mixed material feeding pipe (2) through the cleaning piece (43).

4. A continuous acid hydrolysis reactor feed apparatus according to claim 3, wherein: The driving motor driving line is connected with the driving power supply through the motor lead pipe (7), and the motor lead pipe (7) penetrates through the side wall of the mixed material feeding pipe (2).

5. A continuous acid hydrolysis reactor feed apparatus as defined in claim 1, wherein: The stirring device (5) includes stirring motor (51), stirring fan (52) and bottom sweeping fan (53), the stirring motor (51) is embedded in the bottom of the reaction cylinder (1), and the driving end of the stirring motor (51) is connected with the stirring fan (52) and the bottom sweeping fan (53) through transmission roller.

6. A continuous acid hydrolysis reactor feed apparatus as defined in claim 1, wherein: The discharge port (6) is provided with an electric valve.

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