Polymerizing kettle for polyacrylamide production
By introducing an automated feeding system and optimizing nitrogen distribution in the polymerization reactor, the problems of uneven nitrogen distribution and inaccurate manual feeding were solved, thereby improving the production efficiency and polymerization quality of the polymerization reactor and reducing costs.
Patent Information
- Application Number
- CN202422662598.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-01
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2034-11-01
AI Technical Summary
Uneven nitrogen distribution in existing polymerization reactors leads to poor polymerization, and inaccurate manual feeding results in poor polyacrylamide quality, coupled with high efficiency and low cost.
The system employs an automated feeding system and optimized nitrogen distribution design. By combining a fan and solenoid valve to control the nitrogen flow, precise feeding and nitrogen distribution are achieved. Precise dissolution is achieved through concentration sensors and stirring rods, and uniform nitrogen distribution and stirring are ensured. The combination of an inclined bottom and a vibration motor further improves reaction efficiency.
It achieves precise automatic feeding, improves the uniformity of nitrogen distribution in the polymerization reactor, enhances production efficiency and polymerization quality, and reduces manual labor intensity and costs.
Smart Images
Figure CN223628609U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of polymerizer, especially relates to a polymerizer for polyacrylamide production. BACKGROUND
[0002] Polyacrylamide is a water-soluble linear polymer polymerized by acrylamide (AM) monomer through free radical initiation, has good flocculation, and can reduce the frictional resistance between liquids. In the polymerization process, nitrogen is introduced into the polymerizer to remove oxygen in the material to facilitate product polymerization.
[0003] At present, nitrogen is introduced into the polymerizer through the conveying pipeline vertically arranged on the opposite two side walls of the polymerizer. Since the conveying pipeline forms a 90-degree angle with the side wall of the polymerizer, after the nitrogen is introduced, the nitrogen directly moves upward in the polymerizer due to its small gas density. The material below the horizontal line of the pipeline inlet often has poor polymerization due to less contact with nitrogen. Meanwhile, the traditional polymerization reactor is manually fed, which is inefficient, high in cost, and not accurate in the concentration of acrylamide (AM) solution, resulting in poor quality of the produced polyacrylamide. SUMMARY
[0004] The utility model aims at providing a polymerizer for polyacrylamide production to solve the problems in the background art.
[0005] The utility model is realized through the following technical scheme: a polymerizer for polyacrylamide production, comprising a polymerizer body and a feeding device, the other side of the top of the polymerizer body is provided with the feeding device, the feeding device comprises a dissolving chamber, a concentration sensor is arranged in the dissolving chamber, a monomer inlet and a solvent inlet are arranged on the top of the dissolving chamber, a first flow sensor is arranged at the monomer inlet, a second flow sensor is arranged at the solvent inlet, a first rotary motor is arranged on one side of the dissolving chamber, a first stirring rod is connected to the output end of the first rotary motor, a first discharge port is arranged at the bottom of the dissolving chamber, the first discharge port is connected to a first inlet on the polymerizer body, a second inlet is further arranged on one side of the top of the polymerizer body, a second rotary motor is arranged on the top of the polymerizer body, a second stirring rod is connected to the output end of the second rotary motor, and the concentration sensor, the first flow sensor, the second flow sensor, the first rotary motor, and the second rotary motor are connected to the controller signal.
[0006] Specific, a side of the polymerization kettle body is provided with a support, the support is provided with a nitrogen storage tank, the output port of the nitrogen storage tank is communicated with the inside of the polymerization kettle body through a first gas outlet pipe, and is located on the inner side wall of the polymerization kettle body, a first electromagnetic valve is arranged at the connecting position of the first gas outlet pipe and the output port of the nitrogen storage tank, a second gas outlet pipe is arranged on the other side of the polymerization kettle body, and a second electromagnetic valve is arranged on the second gas outlet pipe.
[0007] Specific, a fan is arranged in the first gas outlet pipe.
[0008] Specific, the inner bottom of the polymerization kettle body is inclined, and a second discharge port is arranged at the inclined position.
[0009] Specific, the second stirring rod is provided with stirring blades, and the stirring blades are arranged in parallel with the inner bottom of the polymerization kettle body.
[0010] Specific, the bottom end of the inner bottom of the polymerization kettle body is provided with a vibration motor.
[0011] Specific, a third electromagnetic valve is arranged at the first discharge port, and a fourth electromagnetic valve is arranged at the second discharge port.
[0012] Compared with the prior art, the polyacrylamide production polymerization kettle has the beneficial effects as follows:
[0013] The polyacrylamide production polymerization kettle can realize accurate automatic feeding, is simple and convenient to operate, simplifies the uncertainty caused by excessive human labor, guarantees the removal of oxygen in the bottom layer of the polymerization kettle body through nitrogen and a fan, guarantees an oxygen-free environment during the polymerization of polyacrylamide, and improves the quality of the produced polyacrylamide. BRIEF DESCRIPTION OF DRAWINGS
[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only preferred embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.
[0015] Figure 1 The structure diagram of the polyacrylamide production polymerization kettle is provided.
[0016] In the figure, 1 is a polymerization kettle body, 2 is a dissolving chamber, 3 is a monomer inlet, 4 is a solvent inlet, 5 is a concentration sensor, 6 is a first flow sensor, 7 is a second flow sensor, 8 is a first rotary motor, 9 is a first stirring rod, 10 is a first outlet, 11 is a first inlet, 12 is a second inlet, 13 is a second rotary motor, 14 is a second stirring rod, 15 is a bracket, 16 is a nitrogen storage tank, 17 is a first gas outlet pipe, 18 is a first electromagnetic valve, 19 is a second gas outlet pipe, 20 is a second electromagnetic valve, 21 is a fan, 22 is a second outlet, 23 is a stirring blade, 24 is a vibration motor, 25 is a third electromagnetic valve, and 26 is a fourth electromagnetic valve. DETAILED DESCRIPTION
[0017] In order to make the objectives, technical solutions, and advantages of the present application more apparent, the following will describe example embodiments according to the present application in detail with reference to the accompanying drawings. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application, and it should be understood that the present application is not limited to the example embodiments described herein. Based on the embodiments of the present application described in the present application, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present application.
[0018] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. It will be apparent, however, to one skilled in the art that the present application can be practiced without one or more of these specific details. In other instances, well-known features have not been described in detail so as not to unnecessarily obscure the present application.
[0019] It should be understood that the present application can be practiced with the elements in different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that the disclosure will be thorough and complete, and will fully convey the scope of the application to those skilled in the art.
[0020] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising", when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. As used herein the term "and / or" includes any and all combinations of one or more of the associated listed items.
[0021] For a thorough understanding of the application, refer to the following description in conjunction with the accompanying drawings, so as to illustrate the technical solutions of the application. The optional embodiments of the application are described in detail as follows. However, in addition to these detailed descriptions, the application can have other implementation manners.
[0022] Please refer to Figure 1 The utility model provides a polymerization kettle for polyacrylamide production, including polymerization kettle body 1, feeding device, one side of top of polymerization kettle body 1 is equipped with feeding device, the feeding device includes dissolving chamber 2, be equipped with concentration sensor 5 in dissolving chamber 2, the top of dissolving chamber 2 is equipped with monomer feed inlet 3, solvent feed inlet, be equipped with first flow sensor 6 at monomer feed inlet 3, be equipped with second flow sensor 7 at solvent feed inlet, one side of dissolving chamber 2 is equipped with first rotary motor 8, the output of first rotary motor 8 is connected with first stirring rod 9, the bottom of dissolving chamber 2 is equipped with first discharge gate 10, first discharge gate 10 is connected with first feed inlet 11 on polymerization kettle body 1, the top one side of polymerization kettle body 1 is also equipped with second feed inlet 12, the top of polymerization kettle body 1 is equipped with second rotary motor 13, the output of second rotary motor 13 is connected with second stirring rod 14, concentration sensor 5, first flow sensor 6, second flow sensor 7, first rotary motor 8, second rotary motor 13 are connected with controller signal.
[0023] Specifically, one side of the polymerization kettle body 1 is provided with a support 15, the support 15 is provided with a nitrogen storage tank 16, the output port of the nitrogen storage tank 16 is communicated with the inside of the polymerization kettle body 1 through a first gas outlet pipe 17, and is located on the inner side wall of the polymerization kettle body 1, a first electromagnetic valve 18 is arranged at the connection position of the first gas outlet pipe 17 and the output port of the nitrogen storage tank 16, a second gas outlet pipe 19 is arranged on the other side of the polymerization kettle body 1, and a second electromagnetic valve 20 is arranged on the second gas outlet pipe 19.
[0024] Specifically, a fan 21 is arranged in the first gas outlet pipe 17.
[0025] Specifically, the inner bottom of the polymerization kettle body 1 is arranged in an inclined manner, and a second discharge gate 22 is arranged at the inclined position.
[0026] Specifically, the second stirring rod 14 is provided with stirring blades 23, and the stirring blades 23 are arranged in parallel with the inner bottom of the polymerization kettle body 1. The stirring is reasonable and sufficient.
[0027] Specifically, a vibration motor 24 is arranged at the bottom end of the inner bottom of the polymerization kettle body 1.
[0028] Specifically, a third electromagnetic valve 25 is arranged at the first discharge gate 10, and a fourth electromagnetic valve 26 is arranged at the second discharge gate 22.
[0029] Exemplarily, the utility model provides a kind of polymerization kettle for polyacrylamide production, and its working principle is as follows:
[0030] First, open the first electromagnetic valve 18 and the second electromagnetic valve 20, nitrogen in the nitrogen storage tank 16 is entered into the inside of the polymerization kettle body 1 along with the first gas outlet pipe 17, and then the nitrogen is quickly driven by the fan 21 to drive the oxygen in the polymerization kettle body 1 to flow out from the second gas outlet pipe 19, so as to prevent the influence of oxygen on the reactant and reduce the risk of thermal polymerization.
[0031] Secondly, the acrylamide monomer is put into the monomer inlet 3 of the feeding device, the solvent is put into the solvent inlet, the first flow sensor 6 and the second flow sensor 7 are used for monitoring the flow of acrylamide monomer and the flow of solvent respectively, the addition amount of them is accurately controlled, the first stirring rod 9 of the first rotary motor 8 is used for fully dissolving, the dissolving efficiency is improved, the concentration of the prepared acrylamide solution is monitored in real time by the concentration sensor 5, the problem that the concentration of the prepared acrylamide solution is too high or insufficient is prevented, until the set concentration is reached, at this time, the third electromagnetic valve 25 is opened, the prepared acrylamide solution is entered into the polymerization kettle body 1 through the first discharge port 10, and then the solvent, initiator and the like are added through the second inlet 12, and then the second rotary motor 13 is started to stir the reaction mixture by the second stirring rod 14, so that the reactant in the polymerization process is kept uniform, and the reaction rate is improved.
[0032] When the polymerization reaction is completed, the fourth electromagnetic valve 26 is opened, the polyacrylamide solution obtained by the polymerization reaction is output through the second discharge port 22, and the bottom of the polymerization kettle body 1 is inclined to ensure the flowability of the reactant, and the vibration motor 24 is combined to help rapid discharge and increase production efficiency.
[0033] It should be noted that the controller, the concentration sensor 5, the flow sensor, the rotary motor and the electromagnetic valve used in the above embodiment are conventional electronic elements of those skilled in the art, and the specific connection circuit and how to select the specific model are known to those skilled in the art, and the above embodiment will not be described in detail.
[0034] The above only describes the preferred embodiment of the utility model, and does not limit the utility model, any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.
Claims
1. A polymerization tank for producing polyacrylamide, characterized by comprising: Including polymerization kettle body, feeding device, the other side of the top of the polymerization kettle body is equipped with the feeding device, the feeding device includes a dissolving chamber, the dissolving chamber is equipped with a concentration sensor, the top of the dissolving chamber is equipped with a monomer inlet, a solvent inlet, the monomer inlet is equipped with a first flow sensor, the solvent inlet is equipped with a second flow sensor, one side of the dissolving chamber is equipped with a first rotary motor, the output end of the first rotary motor is connected with a first stirring rod, the bottom of the dissolving chamber is equipped with a first discharge port, the first discharge port is connected with the first inlet on the polymerization kettle body, the top of the polymerization kettle body is equipped with a second inlet, the top of the polymerization kettle body is equipped with a second rotary motor, the output end of the second rotary motor is connected with a second stirring rod, the concentration sensor, the first flow sensor, the second flow sensor, the first rotary motor, the second rotary motor are connected with the controller signal.
2. The polymerization reactor for producing polyacrylamide according to claim 1, wherein The side of the polymerization kettle body is equipped with a support, the support is equipped with a nitrogen storage tank, the output port of the nitrogen storage tank is communicated with the inside of the polymerization kettle body through a first gas outlet pipe, and is located on the inner side wall of the polymerization kettle body, the first gas outlet pipe and the output port of the nitrogen storage tank are equipped with a first electromagnetic valve, the other side of the polymerization kettle body is equipped with a second gas outlet pipe, the second gas outlet pipe is equipped with a second electromagnetic valve.
3. The polymerization reactor for producing polyacrylamide according to claim 2, wherein The inside of the first gas outlet pipe is equipped with a fan.
4. The polymerization reactor for producing polyacrylamide according to claim 3, wherein The inside bottom of the polymerization kettle body is inclined, and a second discharge port is arranged at the inclined position.
5. The polymerization reactor for producing polyacrylamide according to claim 4, wherein The second stirring rod is equipped with stirring blades, and the stirring blades are arranged parallel to the inside bottom of the polymerization kettle body.
6. The polymerization reactor for producing polyacrylamide according to claim 5, wherein The bottom end of the inside bottom of the polymerization kettle body is equipped with a vibration motor.
7. The polymerization reactor for producing polyacrylamide according to claim 6, wherein The first discharge port is equipped with a third electromagnetic valve, and the second discharge port is equipped with a fourth electromagnetic valve.