Initiator adding device for polyacrylamide production

Abstract

The utility model belongs to the technical field of polyacrylamide production equipment, and particularly relates to an initiator adding device for polyacrylamide production, which comprises a mixing tank, a storage tank, a hollow shaft, a stirring component, a driving component, a conveying component, a metering component, a plurality of feeding pipes, a discharge pipe and a control panel, the storage tank is fixedly mounted at the top of the mixing tank, the hollow shaft is rotatably mounted in the middle of the inner wall of the bottom of the mixing tank in a sealed manner, the stirring assembly is arranged in the mixing tank and connected with the hollow shaft, a plurality of through holes are formed in the hollow shaft, and the driving assembly is arranged at the bottom of the mixing tank and connected with the hollow shaft. And the conveying assembly is arranged below the mixing tank and is matched with the hollow shaft. The device is reasonable in design, simple in structure and convenient to operate, the adding amount of an initiator can be accurately controlled, and meanwhile, the device has a good mixing effect, so that the production efficiency and the product quality of polyacrylamide can be effectively improved.

Description

Technical Field

[0001] This utility model relates to the technical field of polyacrylamide production equipment, and in particular to an initiator addition device for polyacrylamide production. Background Technology

[0002] Polyacrylamide is a linear polymer with wide applications in many fields such as wastewater treatment, papermaking, and oil extraction. In the production process of polyacrylamide, the addition of an initiator is crucial, as it directly affects the polymerization rate, the molecular weight of the product, and its properties.

[0003] Currently, existing initiator addition devices have several problems. Firstly, some devices have low precision in controlling the dosage, making it difficult to accurately add initiators according to production process requirements. Excessive initiator addition leads to overly vigorous reactions, broadening the molecular weight distribution of the product and affecting product quality; insufficient addition results in incomplete reactions, preventing the polymer from meeting expected performance standards. Secondly, existing devices often exhibit poor mixing between the initiator and reactants during the addition process. Polyacrylamide production typically takes place in large reaction vessels; if the initiator is not uniformly dispersed in the reactants, it can cause uneven localized reactions, affecting the quality stability of the final product.

[0004] Therefore, this invention proposes an initiator addition device for polyacrylamide production to solve the above problems.

[0005] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings mentioned in the background section by providing an initiator addition device for polyacrylamide production.

[0007] The above-mentioned technical objective of this utility model is achieved through the following technical solution: an initiator addition device for polyacrylamide production, comprising a mixing tank, a storage tank, a hollow shaft, a stirring assembly, a driving assembly, a conveying assembly, a metering assembly, multiple feed pipes, a discharge pipe, and a control panel;

[0008] The storage tank is fixedly installed on top of the mixing tank. The hollow shaft is rotatably and sealed at the bottom inner wall of the mixing tank, positioned in the center. The stirring assembly is located inside the mixing tank and connected to the hollow shaft, which has multiple through holes. The drive assembly is located at the bottom of the mixing tank and connected to the hollow shaft. The conveying assembly is located below the mixing tank and adapted to the hollow shaft. The storage tank has multiple storage spaces. The number of metering components is the same as the number of storage spaces, and the metering components are located on the storage tank and connected to the top of the mixing tank and the hollow shaft. Multiple feed pipes are fixedly installed on top of the storage tank and connected to their respective storage spaces. The discharge pipe is fixedly installed on the bottom outer side of the mixing tank and remains in communication with the mixing tank. The control panel is located on the upper outer side of the mixing tank.

[0009] Preferably, the stirring assembly includes multiple stirring rods one and multiple stirring rods two. Multiple stirring rods one are radially fixedly installed on the hollow shaft, and multiple stirring rods two are fixedly installed on the inner side wall of the mixing tank. The multiple stirring rods one and multiple stirring rods two are arranged in an alternating manner.

[0010] Preferably, the drive assembly includes a motor, a drive gear, and a driven gear. The motor is fixedly installed at the bottom of the mixing tank. The drive gear is fixedly sleeved on the output shaft of the motor, and the driven gear is fixedly sleeved on the hollow shaft. The drive gear and the driven gear mesh with each other.

[0011] Preferably, the conveying assembly includes a conveying pump, a conveying pipe, a one-way valve, and two circular blocks. Three support legs are fixedly installed at the bottom of the mixing tank. A tray is fixedly installed on the side of the two support legs on the right side that are close to each other. The conveying pump is fixedly installed on the tray. The outlet of the conveying pump is connected to the conveying pipe. A one-way valve is fixedly installed on the conveying pipe. Two circular blocks are rotatably and sealingly installed on the conveying pipe. Both circular blocks are fixedly installed on the inner wall of the hollow shaft, and the top of the conveying pipe extends to the position above the lowest through hole.

[0012] Preferably, the metering assembly includes a metering pump, a suction pipe, and a feeding pipe. Multiple metering pumps are fixedly installed on the top of the storage tank. Suction pipes are fixedly installed at the inlets of the multiple metering pumps. The ends of the multiple suction pipes away from the metering pumps extend to the corresponding storage spaces. Feeding pipes are connected to the outlets of the multiple metering pumps. The bottom ends of the multiple feeding pipes extend into the mixing tank and are fixedly installed with the same sleeve, which is sealed at the top of the hollow shaft.

[0013] Preferably, the metering pump is a plunger-type metering pump.

[0014] Preferably, a diversion pipe is fixedly installed on the feeding pipe, and the diversion pipe is fixedly connected to the mixing tank and extends to a position close to the inner wall of the bottom of the mixing tank.

[0015] Preferably, a one-way valve is fixedly installed on the feeding pipe.

[0016] Preferably, two fixing blocks are fixedly installed on the upper outer side of the mixing tank, and the same rotating rod is mounted on the two fixing blocks with damping rotation. The control panel is radially fixedly installed on the rotating rod.

[0017] Preferably, both the mixing tank and the storage tank are provided with observation windows arranged in a strip shape, and the number of observation windows on the storage tank is multiple and each is adapted to the corresponding storage space.

[0018] The beneficial effects of this utility model are:

[0019] By using a combination of a mixing tank, storage tank, hollow shaft, stirring assembly, drive assembly, conveying assembly, metering assembly, multiple feed pipes, discharge pipes, and control panel, the initiator can be quantitatively added into the mixing tank, and the mixing operation of the materials in the mixing tank can be controlled, thereby controlling the production of polyacrylamide. The conveying assembly can transport liquid materials into the mixing tank while preventing material backflow. The metering assembly utilizes the wide flow adjustment range and high metering accuracy of the plunger metering pump to effectively improve the accuracy of initiator addition. The feed pipe can guide the initiator into the hollow shaft and allow it to flow out from different through holes, thereby increasing the mixing rate to a certain extent. The diversion pipe can directly guide a portion of the initiator to the inner wall of the bottom of the mixing tank, thereby further improving the mixing efficiency. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a three-dimensional structural diagram of an initiator addition device for polyacrylamide production proposed in this utility model.

[0022] Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure;

[0023] Figure 3 This is a partial three-dimensional structural schematic diagram of the present invention;

[0024] Figure 4 This is a schematic diagram of the structure of the conveying component proposed in this utility model;

[0025] Figure 5 This is a cross-sectional structural diagram of the storage tank proposed in this utility model.

[0026] In the diagram: 1. Mixing tank; 101. Discharge pipe; 11. Hollow shaft; 12. Stirring rod one; 13. Stirring rod two; 2. Motor; 21. Drive gear; 22. Driven gear; 3. Conveying pump; 31. Conveying pipe; 311. Circular block; 32. Check valve one; 4. Storage tank; 41. Feed pipe; 5. Metering pump; 51. Suction pipe; 52. Feeding pipe; 521. Check valve two; 53. Sleeve; 6. Diverter pipe; 7. Control panel. Detailed Implementation

[0027] The technical solution of this utility model will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0028] Reference Figure 1-5 An initiator addition device for polyacrylamide production includes a mixing tank 1, a storage tank 4, a hollow shaft 11, multiple feed pipes 41, a discharge pipe 101, and a control panel 7. The storage tank 4 is fixedly installed on the top of the mixing tank 1. The hollow shaft 11 is rotatably and sealedly installed at the center of the bottom inner wall of the mixing tank 1. Multiple stirring rods 12 are radially fixedly installed on the hollow shaft 11, and multiple stirring rods 13 are fixedly installed on the inner side wall of the mixing tank 1. The multiple stirring rods 12 and multiple stirring rods 13 are staggered, which can control the multiple stirring rods 12 to perform stirring and mixing operations when the hollow shaft 11 rotates. At the same time, the stirring and mixing rate can be increased with the cooperation of the multiple stirring rods 13. A motor 2 is fixedly installed at the bottom of the mixing tank 1. A drive gear 21 is fixedly sleeved on the output shaft of the motor 2, and a driven gear 22 is fixedly sleeved on the hollow shaft 11. The drive gear 21 and the driven gear 22 mesh with each other and can provide driving force for the hollow shaft 11.

[0029] The hollow shaft 11 has multiple through holes. Three support legs are fixedly installed at the bottom of the mixing tank 1. A support plate is fixedly installed on the side of the two support legs on the right side that are close to each other. A conveying pump 3 is fixedly installed on the support plate. The outlet of the conveying pump 3 is connected to a conveying pipe 31. A one-way valve 32 is fixedly installed on the conveying pipe 31. Two circular blocks 311 are rotatably installed on the conveying pipe 31. Both circular blocks 311 are fixedly installed on the inner wall of the hollow shaft 11. The top of the conveying pipe 31 extends to the position above the bottom through hole, which can convey liquid materials into the mixing tank 1 and at the same time avoid the phenomenon of material backflow.

[0030] The storage tank 4 has multiple storage spaces. Multiple metering pumps 5 are fixedly installed on the top of the storage tank 4. Each metering pump 5 has a suction pipe 51 fixedly installed at its inlet. The ends of the suction pipes 51 away from the metering pumps 5 extend to the corresponding storage spaces. Each metering pump 5 has a feed pipe 52 connected to its outlet. The bottom ends of the feed pipes 52 extend into the mixing tank 1 and are fixedly installed with the same sleeve 53. The sleeve 53 is sealed at the top of the hollow shaft 11, which can guide the initiator in the storage space into the hollow shaft 11 and discharge it through different through holes. This can improve the mixing rate to a certain extent and achieve the effect of quantitative initiator addition. The metering pumps 5 are plunger-type metering pumps. They have the characteristics of wide flow adjustment range and high metering accuracy, which can effectively improve the accuracy of initiator addition. Multiple feed pipes 41 are fixedly installed on the top of the storage tank 4 and connected to the corresponding storage spaces, which facilitates the addition of initiator to different storage spaces.

[0031] The discharge pipe 101 is fixedly installed on the bottom outer side of the mixing tank 1 and keeps in communication with the mixing tank 1. The control panel 7 is located on the upper outer side of the mixing tank 1. In order to provide effective support for the control panel 7 and facilitate the adjustment of the orientation of the control panel 7 as needed, two fixing blocks are fixedly installed on the upper outer side of the mixing tank 1. The same rotating rod is damped and rotatably installed on the two fixing blocks. The control panel 7 is radially fixedly installed on the rotating rod.

[0032] In this embodiment, in order to directly guide some of the initiator to the bottom inner wall of the mixing tank 1 when the liquid material is delivered to the mixing tank 1 by the metering pump 5, thereby improving the mixing efficiency to a certain extent, a diversion pipe 6 is fixedly installed on the feed pipe 52, and the diversion pipe 6 is fixedly connected to the mixing tank 1 and extends to a position close to the bottom inner wall of the mixing tank 1.

[0033] In this embodiment, in order to prevent the liquid material from flowing into the storage tank 4 through the diversion pipe 6 when the liquid material is delivered to the mixing tank 1, a one-way valve 521 is fixedly installed on the feeding pipe 52.

[0034] In this embodiment, in order to facilitate observation of the liquid level in the mixing tank 1 and each storage space, both the mixing tank 1 and the storage tank 4 are provided with strip-shaped observation windows. The storage tank 4 has multiple observation windows, each adapted to the corresponding storage space.

[0035] In addition, an air exchange pipe with a valve is fixedly installed on the upper part of the outer side of the mixing tank 1 to maintain the air pressure balance inside the mixing tank 1.

[0036] The circuits, electronic components, and module mechanisms involved all employ existing technologies, which can be fully implemented by those skilled in the art, and need no further explanation. The content protected by this application does not involve any improvement to the software, circuits, or methods.

[0037] Working principle: In use, first connect the power supply, add the required initiator into different storage spaces through the feed pipe 41, and then start the delivery pump 3 and motor 2 through the control panel 7. The delivery pump 3, together with the delivery pipe 31, delivers the liquid coating to be added into the hollow shaft 11 and discharges it into the mixing tank 1 through the through hole. At the same time, the motor 2 drives the hollow shaft 11 through the drive gear 21 and the driven gear 22 to drive multiple stirring rods 12 to rotate, and achieves the stirring operation with the cooperation of multiple stirring rods 13. When the initiator needs to be added, start the corresponding metering pump 5, which can deliver it into the hollow shaft 11 under the action of the suction pipe 51 and the feed pipe 52, and then discharge it through multiple through holes. At the same time, part of the initiator is directly guided to the bottom inner wall of the mixing tank 1 through the diversion pipe 6. This dispersed addition method can effectively improve the mixing uniformity rate.

[0038] The above provides a detailed description of the initiator addition device for polyacrylamide production provided by this utility model. Specific embodiments have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that those skilled in the art can make several improvements and modifications to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. An initiator adding device for polyacrylamide production, characterized by, The utility model provides a kind of mixing tank, which comprises a mixing tank (1), a storage tank (4), a hollow shaft (11), a stirring assembly, a driving assembly, a conveying assembly, a metering assembly, a plurality of feed pipes (41), a discharge pipe (101) and a control panel (7). The storage tank (4) is fixedly installed on the top of the mixing tank (1), the hollow shaft (11) is sealingly and rotatably installed at the central position of the inner wall of the bottom of the mixing tank (1), the stirring assembly is arranged in the mixing tank (1) and connected with the hollow shaft (11), a plurality of through holes are formed in the hollow shaft (11), the driving assembly is arranged at the bottom of the mixing tank (1) and connected with the hollow shaft (11), the conveying assembly is arranged below the mixing tank (1) and matched with the hollow shaft (11), a plurality of storage spaces are formed in the storage tank (4), the number of the metering assemblies is the same as that of the storage spaces, the metering assemblies are arranged on the storage tank (4) and connected with the top end of the mixing tank (1) and the hollow shaft (11), the plurality of feed pipes (41) are fixedly installed on the top of the storage tank (4) and respectively communicated with the corresponding storage spaces, the discharge pipe (101) is fixedly installed on the outside bottom of the mixing tank (1) and kept in communication with the mixing tank (1), and the control panel (7) is arranged on the upper side of the outside of the mixing tank (1).

2. The initiator adding device for polyacrylamide production according to claim 1, characterized in that: The stirring assembly comprises a plurality of stirring rods I (12) and a plurality of stirring rods II (13), the plurality of stirring rods I (12) are fixedly installed on the hollow shaft (11) in a radial direction, the plurality of stirring rods II (13) are fixedly installed on the inner side wall of the mixing tank (1), and the plurality of stirring rods I (12) and the plurality of stirring rods II (13) are arranged in an interlaced manner.

3. The initiator adding device for polyacrylamide production according to claim 1, characterized in that: The driving assembly comprises a motor (2), a driving gear (21) and a driven gear (22), the motor (2) is fixedly installed at the bottom of the mixing tank (1), the driving gear (21) is fixedly sleeved on the output shaft of the motor (2), the driven gear (22) is fixedly sleeved on the hollow shaft (11), and the driving gear (21) and the driven gear (22) are engaged.

4. The initiator adding device for polyacrylamide production according to claim 1, characterized in that: The conveying assembly comprises a conveying pump (3), a conveying pipe (31), a one-way valve I (32) and two circular blocks (311), three supporting legs are fixedly installed at the bottom of the mixing tank (1), the two supporting legs on the right side are fixedly installed on the side close to each other, a supporting plate is fixedly installed on the two supporting legs, the conveying pump (3) is fixedly installed on the supporting plate, the water outlet of the conveying pump (3) is connected with the conveying pipe (31), the one-way valve I (32) is fixedly installed on the conveying pipe (31), the two circular blocks (311) are sealingly and rotatably installed on the conveying pipe (31), the two circular blocks (311) are fixedly installed on the inner wall of the hollow shaft (11), and the top end of the conveying pipe (31) extends to the position above the lowermost through hole.

5. The initiator adding device for polyacrylamide production according to claim 1, characterized in that: The metering assembly comprises metering pumps (5), suction pipes (51) and feeding pipes (52), a plurality of metering pumps (5) are fixedly installed on the top of the storage tank (4), the feeding inlets of the plurality of metering pumps (5) are fixedly installed with suction pipes (51), the ends of the plurality of suction pipes (51) away from the metering pumps (5) extend to the corresponding storage spaces respectively, the feeding outlets of the plurality of metering pumps (5) are connected with feeding pipes (52), the bottom ends of the plurality of feeding pipes (52) extend into the mixing tank (1) and are fixedly installed with the same sleeve (53), and the sleeve (53) is sealed on the top end of the hollow shaft (11).

6. The initiator adding device for polyacrylamide production according to claim 5, characterized in that: The metering pump (5) is a plunger type metering pump.

7. The initiator adding device for polyacrylamide production according to claim 5, characterized in that: A shunt pipe (6) is fixedly installed on the feeding pipe (52), and the shunt pipe (6) is fixedly connected with the mixing tank (1) and extends to a position close to the inner wall of the bottom of the mixing tank (1).

8. The initiator adding device for polyacrylamide production according to claim 5, characterized in that: A one-way valve (521) is fixedly installed on the feeding pipe (52).

9. The initiator adding device for polyacrylamide production according to claim 1, characterized in that: Two fixed blocks are fixedly installed on the upper side of the mixing tank (1), the same rotating rod is rotatably installed on the two fixed blocks, and the control panel (7) is radially fixedly installed on the rotating rod.

10. The initiator adding device for polyacrylamide production according to claim 1, characterized in that: The mixing tank (1) and the storage tank (4) are both provided with strip-shaped observation windows, the number of the observation windows on the storage tank (4) is multiple and is matched with the corresponding storage spaces respectively.

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