Efficient stirring reaction kettle for preparing water reducing agent

Abstract

The efficient stirring reaction kettle for preparing the water reducing agent comprises an assembly frame, a plurality of stirring barrels and a stirring device, the plurality of stirring barrels are vertically arranged in sequence and are fixed on the assembly frame; the plurality of stirring barrels are connected through pipelines; the stirring device comprises a motor, a driving shaft and a plurality of driving parts; the driving part comprises a synchronous belt wheel, a rotating shaft and a plurality of blades; the motor is arranged on the assembly frame and is positioned beside the stirring barrel; the driving shaft is vertically connected to the motor, and the motor is used for driving the driving shaft to rotate; the plurality of driving parts are arranged beside the plurality of stirring barrels in a one-to-one correspondence manner; one side of the synchronous pulley is arranged on the driving shaft and rotates along with the driving shaft; the other side of the synchronous pulley is arranged at the top of the stirring barrel, the bottom of the synchronous pulley is connected with a rotating shaft, and the other end of the rotating shaft penetrates through the top of the stirring barrel and is rotationally arranged in the stirring barrel; the blades are arranged on the rotating shaft in a surrounding mode. The problems that an existing large stirring kettle is limited in stirring efficiency, stirring requirements at different stages cannot be flexibly adjusted, the preparation period is long, and energy consumption is high are solved.

Description

Technical Field

[0001] The utility model relates to the field of water reducing agent processing, in particular to a high-efficiency stirring reactor for preparing the water reducing agent. Background Art

[0002] In the building materials industry, water reducers, as a crucial concrete additive, significantly improve concrete's strength, fluidity, and durability by reducing water usage in the concrete mix, thereby optimizing concrete performance and reducing production costs. With the continuous advancement of construction technology and the increasing demands for concrete performance, the preparation process for water reducers is facing greater technical challenges.

[0003] During the preparation of water-reducing agents, especially polycarboxylate water-reducing agents, the stirring speed is adjusted according to the different stages of the reaction. This is because the stirring speed has a significant impact on the uniform mixing of the reaction solution, heat transfer efficiency, and the properties of the final product. In the initial reaction, when the reaction solution viscosity is low and the monomers and adjuvants are just beginning to mix, a higher stirring speed, such as around 350 rpm, is required to promote interaction and reaction speed between the monomers. This ensures rapid and uniform mixing of the reaction solution, improving reaction efficiency. In the middle stage of the reaction, when the viscosity of the reaction solution gradually increases, an appropriate stirring speed is required to maintain uniformity and heat transfer in the reaction system. During this middle stage, the stirring speed should be gradually adjusted to a moderate range, such as 280-300 rpm. This speed range ensures uniform mixing while avoiding the adverse effects of excessive stirring speed on the reaction system. In the late stage of the reaction, when the viscosity of the reaction solution further increases and the polymerization reaction nears completion, it is necessary to prevent excessive stirring from damaging the already formed polymer chains. The stirring speed should be appropriately reduced in the late stage to fully utilize the stirring force to promote the completion of the polymerization reaction while avoiding damage to the polymer chains. The speed can be adjusted to 200-250 rpm or lower.

[0004] In the traditional preparation process of water reducers, a single large-scale stirring tank is usually used for mixing reactions. This method has many shortcomings: first, the stirring efficiency is limited, making it difficult to ensure that the various components of the water reducer are fully and evenly mixed, and the stirring requirements at different stages cannot be flexibly adjusted, resulting in a long preparation cycle and high energy consumption. Utility Model Content

[0005] The utility model aims to provide a high-efficiency stirred reactor for preparing water reducing agent, which solves the problems of limited stirring efficiency of existing large stirred reactors, inability to flexibly adjust stirring requirements at different stages, long preparation cycle and high energy consumption.

[0006] The embodiments of the present invention are achieved through the following technical solutions:

[0007] A high-efficiency stirred reactor for preparing a water reducing agent, comprising:

[0008] assembly rack;

[0009] A plurality of mixing barrels, wherein the mixing barrels are arranged vertically in sequence and fixed on the assembly frame; the mixing barrels are connected by pipes;

[0010] The stirring device includes a motor, a drive shaft and several driving parts; the driving parts include a synchronous pulley, a rotating shaft and several blades; the motor is arranged on the assembly frame, next to the stirring barrel; the drive shaft is vertically connected to the motor, and the motor is used to drive the drive shaft to rotate; several of the driving parts are arranged one by one next to several stirring barrels; one side of the synchronous pulley is arranged on the drive shaft and rotates accordingly; the other side of the synchronous pulley is arranged at the top of the stirring barrel, and the bottom of the synchronous pulley is also connected to the rotating shaft, the other end of the rotating shaft passes through the top of the stirring barrel and rotates inside the stirring barrel; several blades are arranged around the rotating shaft.

[0011] A feed hopper is provided on one side of the top mixing barrel; a discharge port is provided on one side of the bottom mixing barrel; and both the feed hopper and the discharge port are connected to the mixing barrel through a pipeline.

[0012] The pipelines are all provided with valves.

[0013] The assembly frame includes several fixed frames, several support columns, several limit frames, several limit rods and a placement plate; the several fixed frames are arranged vertically in sequence and are respectively arranged on the outside of the mixing barrel; the several support columns are placed vertically and are respectively connected to the fixed frames to fix them; the placement plate is horizontally arranged on one side of the lowest fixed frame; the motor is placed on the placement plate; the mixing barrel is fixed in the limit frame; the side of the limit frame is connected to the fixed frame.

[0014] The synchronous pulley includes a driving wheel, a synchronous wheel and a synchronous belt; the driving wheel is arranged on the driving shaft and rotates accordingly; the synchronous wheel is arranged on the top of the mixing barrel; the two sides of the synchronous belt are respectively wrapped around the driving wheel and the synchronous wheel.

[0015] The diameters of the driving wheels decrease from top to bottom.

[0016] The technical solution of the embodiment of the utility model has at least the following advantages and beneficial effects:

[0017] The utility model discloses a high-efficiency stirring reactor for preparing a water reducer, which is provided with multiple stirring barrels and can realize a multi-stage stirring function, so that the stirring effect is better; and the multi-stage stirring is set with different speeds to adapt to the needs of different stages in the water reducer preparation process, thereby realizing flexible adjustment of the stirring speed; and by using the same motor in conjunction with pulleys of different speeds, stirring at different speeds is realized in the multiple stirring barrels, which greatly reduces the production cost, and at the same time realizes the automation and efficiency of the water reducer preparation process and shortens the preparation cycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is attached Figure 1 Schematic diagram of the internal structure at point A in the middle.

[0020] In the figure, 101-fixed frame, 102-support column, 103-limiting frame, 104-limiting rod, 105-placing plate, 201-mixing barrel, 202-pipeline, 203-valve, 204-discharge port, 205-feed hopper, 301-motor, 302-drive shaft, 303-driving wheel, 304-synchronizing wheel, 305-synchronizing belt, 306-rotating shaft, 307-blade. DETAILED DESCRIPTION

[0021] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0023] like Figure 1 and 2As shown, a high-efficiency stirred reactor for preparing a water-reducing agent comprises an assembly frame, two mixing barrels 201 and a stirring device; the assembly frame comprises two fixed frames 101, six support columns 102, two limit frames 103, limit rods 104 and a placement plate 105; the two fixed frames 101 are arranged vertically in sequence and are respectively provided on the outsides of the two mixing barrels 201; the four support columns 102 are placed vertically and are respectively connected to the four corners of the fixed frames 101 and fixed; the placement plate 105 is horizontally provided on one side of the lowest fixed frame 101, and two support columns 102 are provided at the bottom of the two corners of the other side for supporting the placement plate 105; the motor 301 is placed on the placement plate 105; the limit frame 103 is annular, and its side is fixed to the inner wall of the fixed frame 101 by a connecting rod;

[0024] The two mixing barrels 201 are fixedly mounted in the two limiting frames 103 and arranged vertically in sequence. The two mixing barrels 201 are connected by a pipe 202. One end of the pipe 202 is connected to the bottom of the adjacent upper mixing barrel 201, and the other end is connected to the side wall of the adjacent lower mixing barrel 201. A feeding hopper 205 is also provided on one side of the uppermost mixing barrel 201 and is connected to the side wall of the mixing barrel 201 through the pipe 202. A discharge port 204 is also provided at the bottom of the lowermost mixing barrel 201 and is connected to the bottom of the mixing barrel 201 through the pipe 202.

[0025] Specifically, valves 203 are provided on each of the plurality of pipes 202 to control the flow of materials therein;

[0026] The stirring device includes a motor 301, a drive shaft 302 and two drive parts; the drive part includes a synchronous belt 305 wheel, a rotating shaft 306 and a plurality of blades 307; the motor 301 is located next to the stirring barrel 201; the drive shaft 302 is vertically connected to the motor 301, and the motor 301 is used to drive the drive shaft 302 to rotate; the two drive parts are arranged one by one on the side of the two stirring barrels 201; one side of the synchronous belt 305 wheel is arranged on the drive shaft 302 and rotates accordingly; the other side of the synchronous belt 305 wheel is arranged at the top of the stirring barrel 201, and its bottom is also connected to the rotating shaft 306, the other end of the rotating shaft 306 passes through the top of the stirring barrel 201 and rotates inside the stirring barrel 201; a plurality of the blades 307 are arranged around the rotating shaft 306.

[0027] Specifically, the synchronous belt 305 includes a driving wheel 303, a synchronous wheel 304 and a synchronous belt 305; the driving wheel 303 is arranged on the driving shaft 302 and rotates accordingly; the synchronous wheel 304 is arranged on the top of the mixing barrel 201; the two sides of the synchronous belt 305 are respectively wrapped around the driving wheel 303 and the synchronous wheel 304; the diameter of the driving wheel 303 on the driving shaft 302 decreases from top to bottom, so that the transmission ratios of the two driving parts are different.

[0028] The working principle of this embodiment is:

[0029] The utility model is a high-efficiency stirring reactor for preparing a water reducer. The materials with a good proportion can be fed from the feed hopper 205 into the uppermost stirring barrel 201. Then, the motor 301 drives the internal blades 307 to rotate to stir the materials. Then, the materials inside are transferred downward to the next stirring barrel 201 through the cooperation of the pipe 202 and the valve 203 to be stirred. The driving parts with different transmission ratios react at different stages and finally are discharged from the discharge port 204 at the bottom to complete the preparation of the water reducer.

[0030] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent replacements, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A high-efficiency stirred reactor for preparing a water reducer, characterized in that: include: assembly rack; A plurality of mixing barrels, wherein the mixing barrels are arranged vertically in sequence and fixed on the assembly frame; the mixing barrels are connected by pipes; The stirring device includes a motor, a drive shaft and several driving parts; the driving parts include a synchronous pulley, a rotating shaft and several blades; the motor is arranged on the assembly frame, next to the stirring barrel; the drive shaft is vertically connected to the motor, and the motor is used to drive the drive shaft to rotate; several of the driving parts are arranged one by one next to several stirring barrels; one side of the synchronous pulley is arranged on the drive shaft and rotates accordingly; the other side of the synchronous pulley is arranged at the top of the stirring barrel, and the bottom of the synchronous pulley is also connected to the rotating shaft, the other end of the rotating shaft passes through the top of the stirring barrel and rotates inside the stirring barrel; several blades are arranged around the rotating shaft.

2. A high-efficiency stirred reactor for preparing a water reducer according to claim 1, characterized in that: A feed hopper is provided on one side of the top mixing barrel; a discharge port is provided on one side of the bottom mixing barrel; and both the feed hopper and the discharge port are connected to the mixing barrel through a pipeline.

3. A high-efficiency stirred reactor for preparing a water reducer according to claim 2, characterized in that: The pipelines are all provided with valves.

4. The high-efficiency stirred reactor for preparing a water reducing agent according to claim 1, characterized in that: The assembly frame includes several fixed frames, several support columns, several limit frames, several limit rods and a placement plate; the several fixed frames are arranged vertically in sequence and are respectively arranged on the outside of the mixing barrel; the several support columns are placed vertically and are respectively connected to the fixed frames to fix them; the placement plate is horizontally arranged on one side of the lowest fixed frame; the motor is placed on the placement plate; the mixing barrel is fixed in the limit frame; the side of the limit frame is connected to the fixed frame.

5. The high-efficiency stirred reactor for preparing a water reducing agent according to claim 1, characterized in that: The synchronous pulley includes a driving wheel, a synchronous wheel and a synchronous belt; the driving wheel is arranged on the driving shaft and rotates accordingly; the synchronous wheel is arranged on the top of the mixing barrel; the two sides of the synchronous belt are respectively wrapped around the driving wheel and the synchronous wheel.

6. A high-efficiency stirred reactor for preparing a water reducing agent according to claim 5, characterized in that: The diameters of the driving wheels decrease from top to bottom.

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