On-line viscosity monitoring device for acrylic polymer

Abstract

The utility model discloses an acrylic polymer on-line viscosity monitoring device which comprises a stirring tank, a stirring mechanism for stirring an acrylic polymer is arranged on the stirring tank, and one side of the top end of the outer wall of the stirring tank is fixedly communicated with a detection pipe orifice. According to the utility model, the viscosity value of the acrylic polymer in the stirring tank is detected through the detection component, so that the production process is continuously tracked in real time, the control of the production process is optimized, and the production efficiency is improved. Meanwhile, by monitoring the viscosity value of the reaction, the process parameters can be well adjusted, so that the molecular weight of the product is moderate, the molecular weight distribution is narrower, and the technical indexes and the application performance of the product are obviously improved.

Description

Technical Field

[0001] The utility model relates to the technical field of acrylic acid polymer production, in particular to an acrylic acid polymer online viscosity monitoring device. Background Art

[0002] Acrylic resin materials are widely used in construction, automobiles, home appliances, plastic products, etc. due to their excellent light resistance, heat resistance, weather resistance and durability. The key indicator of acrylic resin, viscosity, directly affects the leveling and sagging of the coating. Therefore, controlling the viscosity index of acrylic resin is directly related to the quality level of the product's application end.

[0003] At present, acrylic resin production mainly relies on process parameters and finished product terminal quality inspection, but the products often fail to meet high quality requirements, and there is a large fluctuation in product batches. Some measures also rely on manual on-site sampling for viscosity testing, which not only makes it difficult to achieve precise control of resin performance stability, but also increases the safety risks of process sampling. Therefore, there are still some shortcomings in the production and preparation of acrylic resin.

[0004] Therefore, based on the above technical problems, it is necessary for technicians in this field to develop an online viscosity monitoring device for acrylic polymers. Utility Model Content

[0005] The utility model aims to provide an acrylic acid polymer online viscosity monitoring device.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] The utility model discloses an online viscosity monitoring device for acrylic polymer, comprising a stirring tank, wherein a stirring mechanism for stirring acrylic polymer is arranged on the stirring tank, a detection pipe mouth is fixedly connected to one side of the top end of the outer wall of the stirring tank, a detection component for detecting the viscosity of acrylic polymer is arranged at the top end of the outer wall of the stirring tank and at a position corresponding to the detection pipe mouth, and a sampling component for sampling acrylic polymer is arranged at the top end of the inner wall of the stirring tank.

[0008] Furthermore, a feeding pipe is connected to the top of the outer wall of the stirring tank and the side away from the detection pipe mouth, and the detection component includes an electric lifting rod, and the bottom ends of the two electric lifting rods are fixed to the top of the outer wall of the stirring tank and located on both sides of the detection pipe mouth.

[0009] Furthermore, a mounting support plate is fixed to the top of the outer wall of the electric lifting rod, a viscosity detector body is arranged at the top of the outer wall of the mounting support plate, and a viscosity detection head for detecting the viscosity of the acrylic polymer is installed at the bottom end of the viscosity detector body and at a position corresponding to the detection pipe mouth.

[0010] Furthermore, top sealing plates are hinged on both sides of the top of the outer wall of the detection tube mouth, and annular grooves are opened on the outer walls of the two top sealing plates on the opposite sides and at positions corresponding to the viscosity detection head. The annular grooves are used in conjunction with the outer wall of the viscosity detection head.

[0011] Furthermore, the sampling component comprises an annular guide rail, the top end of the outer wall of the annular guide rail is fixed to the inner top of the stirring tank and located outside the stirring mechanism, and the outer wall of the annular guide rail is slidably connected to an electrically controlled slide seat.

[0012] Furthermore, a hydraulic telescopic rod a is fixedly connected to the top of the outer wall of the electric control slide, and a sampling bucket for sampling acrylic polymer is connected to one end of the hydraulic telescopic rod a away from the electric control slide.

[0013] Furthermore, the sampling hopper is arranged at the bottom end of the outer wall of the detection pipe mouth and at a position corresponding to the bottom of the viscosity detection head, and an electromagnetic discharge valve for discharging is arranged at the bottom end of the outer wall of the sampling hopper.

[0014] Furthermore, a side connecting plate is fixed to the side end of the outer wall of the sampling bucket and close to the side of the hydraulic telescopic rod a, and the bottom output end of the hydraulic telescopic rod a is fixedly connected to the top end of the outer wall of the side connecting plate.

[0015] In the above technical solution, the utility model provides an acrylic polymer online viscosity monitoring device, which has the following beneficial effects:

[0016] In the utility model, the sampling bucket can be driven to move by the electrically controlled sliding seat and the hydraulic telescopic rod a, and the sampling bucket can sample the acrylic polymer in the mixing tank, and then the viscosity detector body is controlled to move downward by the electric lifting rod so that the viscosity detection head is inserted into the interior of the sampling bucket, so that the viscosity detector body and the viscosity detection head can perform viscosity detection on the sampled acrylic polymer, so that the viscosity value of the acrylic polymer in the mixing tank can be timely known, the production process can be tracked in real time and continuously, and the production process control can be optimized. At the same time, by monitoring the viscosity value of the reaction, the process parameters can be well adjusted, so that the molecular weight of the product is moderate and the distribution is narrow, and the technical indicators and application performance of the product are significantly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1A schematic structural diagram of an acrylic polymer online viscosity monitoring device provided by an embodiment of the utility model in a front view as a whole cross-section;

[0019] Figure 2 For the utility model embodiment Figure 1 The enlarged structural diagram at A in the middle;

[0020] Figure 3 A schematic diagram of a partial cross-sectional structure of a detection nozzle in a front view direction of an acrylic polymer online viscosity monitoring device provided by an embodiment of the utility model;

[0021] Figure 4 A schematic diagram of the three-dimensional structure of a detection nozzle in a top view direction of an acrylic polymer online viscosity monitoring device provided by an embodiment of the utility model;

[0022] Figure 5 A schematic diagram of the three-dimensional structure of a sampling hopper and a side connecting plate in an online viscosity monitoring device for acrylic polymer provided in an embodiment of the utility model.

[0023] In the figure: 100, stirring tank; 200, stirring mechanism; 300, annular guide rail; 310, electric control slide; 320, hydraulic telescopic rod a; 330, sampling bucket; 331, side connecting plate; 400, electric lifting rod; 410, mounting support plate; 420, viscosity detector body; 421, viscosity detection head; 500, detection pipe mouth; 510, top sealing plate; 511, annular groove. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0025] See also Figure 1 to Figure 5 As shown;

[0026] The utility model discloses an online viscosity monitoring device for acrylic polymer, comprising a stirring tank 100, on which a stirring mechanism 200 for stirring acrylic polymer is arranged, wherein the stirring mechanism 200 comprises a stirring motor and a stirring rod, and the stirring motor drives the stirring rod to rotate, so that the stirring rod can mix and stir the acrylic polymer, a detection nozzle 500 is fixedly connected to one side of the top of the outer wall of the stirring tank 100, a feeding pipe is connected to the top of the outer wall of the stirring tank 100 and a side away from the detection nozzle 500, and top sealing plates 510 are hinged on both sides of the top of the outer wall of the detection nozzle 500. , an annular groove 511 is provided on the outer wall of the opposite side of the two top sealing plates 510 and at the position corresponding to the viscosity detection head 421, and the annular groove 511 is used in conjunction with the outer wall of the viscosity detection head 421, and the detection nozzle 500 is provided to facilitate the viscosity detection head 421 to extend into the interior of the stirring tank 100 to perform viscosity detection on the acrylic polymer, and the top sealing plate 510 is provided to be able to close the top of the detection nozzle 500 when detection is not required, and the annular groove 511 is provided to leave a margin for the long rod part of the viscosity detection head 421 to avoid the situation where the top sealing plate 510 cannot be closed;

[0027] A detection component for detecting the viscosity of the acrylic polymer is arranged at the top of the outer wall of the stirring tank 100 and at a position corresponding to the detection nozzle 500. The detection component includes an electric lifting rod 400. The bottom ends of the two electric lifting rods 400 are fixed to the top of the outer wall of the stirring tank 100 and are located on both sides of the detection nozzle 500. A mounting support plate 410 is fixed to the top of the outer wall of the electric lifting rod 400. The electric lifting rod 400 can adjust the height of the mounting support plate 410, and indirectly control whether the viscosity detection head 421 performs viscosity detection on the acrylic polymer. The top of the outer wall of the mounting support plate 410 A viscosity detector body 420 is provided, and a viscosity detection head 421 for detecting the viscosity of the acrylic polymer is installed at the bottom of the viscosity detector body 420 and at a position corresponding to the detection nozzle 500, and the mounting support plate 410 is provided to support the viscosity detector body 420, and the viscosity detector body 420 can detect the viscosity of the acrylic polymer through the viscosity detection head 421, and the viscosity detector body 420 is responsible for calculating the detected data, and while displaying the data, it is also sent to the PC of the responsible person through the data transmission device for statistics;

[0028] A sampling component for sampling acrylic polymer is arranged at the top of the inner wall of the stirring tank 100, and the sampling component includes an annular guide rail 300, and the top of the outer wall of the annular guide rail 300 is fixed to the inner top of the stirring tank 100 and located on the outside of the stirring mechanism 200, and the outer wall of the annular guide rail 300 is slidably connected to an electric control slide 310, and preferably, the electric control slide 310 can be rotated on the outer wall of the annular guide rail 300 by electric or pneumatic means, so that the sampling position of the sampling bucket 330 can be adjusted, and the top of the outer wall of the electric control slide 310 is fixedly connected to a hydraulic telescopic rod a320, and the end of the hydraulic telescopic rod a320 away from the electric control slide 310 is connected to the sampling bucket 330 for sampling acrylic polymer, and the hydraulic telescopic rod a320 is arranged to be able to adjust the sampling position of the sampling bucket 330 by telescopic means The sampling bucket 330 is controlled to move up and down so that the sampling bucket 330 can sample the acrylic polymer when moving downward. The sampling bucket 330 is arranged at the bottom end of the outer wall of the detection pipe mouth 500 and at a position corresponding to the bottom of the viscosity detection head 421. The bottom end of the outer wall of the sampling bucket 330 is provided with an electromagnetic discharge valve for discharging. When the viscosity detection is completed, the acrylic polymer solution can be discharged downward by opening the electromagnetic discharge valve, which is convenient for the next detection sampling. The side end of the outer wall of the sampling bucket 330 and one side close to the hydraulic telescopic rod a320 are fixed with a side connecting plate 331. The bottom output end of the hydraulic telescopic rod a320 is fixedly connected to the top end of the outer wall of the side connecting plate 331, and the arranged sampling bucket 330 is fixed to the bottom output end of the hydraulic telescopic rod a320 through the side connecting plate 331.

[0029] In the present invention, first, a person can add the raw material for preparing the acrylic polymer into the stirring tank 100 through the provided feeding pipe, and stir the acrylic polymer raw material through the provided stirring mechanism 200 to make it undergo a polymerization reaction to prepare the acrylic polymer;

[0030] During the preparation of acrylic polymer, when the personnel need to test the viscosity of the acrylic polymer in the mixing tank 100, they can first open the top sealing plate 510 to the outside to ensure that the viscosity detection head 421 can move up and down normally in the detection nozzle 500. Then, the personnel drive the electric control slide 310 to slide on the annular guide rail 300 through the control panel so that the sampling bucket 330 can be above the sampling point. Then, the hydraulic telescopic rod a320 controls the sampling bucket 330 to move downward so that the sampling bucket 330 samples the acrylic polymer. After the sampling is completed, the electric control slide 310 The sampling bucket 330 is driven to reset to the detection point, and then the hydraulic telescopic rod a320 is contracted to make the sampling bucket 330 move upward to the upper end, and then the electric lifting rod 400 is contracted to make the mounting support plate 410 and the viscosity detector body 420 move downward, and the viscosity detection head 421 moves downward to the inside of the sampling bucket 330, and then the viscosity detector body 420 can control the viscosity detection head 421 to perform viscosity detection on the sample in the sampling bucket 330, and the viscosity detector body 420 will display the data and send it to the PC of the responsible personnel through the data transmission device for statistics;

[0031] After the test is completed, the hydraulic telescopic rod a320 and the electric lifting rod 400 will move to separate and reset the viscosity detection head 421 and the sampling bucket 330, and then open the electromagnetic discharge valve to allow the acrylic polymer solution to be discharged downward, so that sampling and viscosity testing can be carried out next time when needed.

[0032] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An acrylic acid polymer online viscosity monitoring device, comprising a stirring tank (100), wherein the stirring tank (100) is provided with a stirring mechanism (200) for stirring the acrylic acid polymer, characterized in that: A detection pipe opening (500) is fixedly connected to one side of the top end of the outer wall of the stirring tank (100); a detection component for detecting the viscosity of the acrylic polymer is arranged at the top end of the outer wall of the stirring tank (100) and at a position corresponding to the detection pipe opening (500); and a sampling component for sampling the acrylic polymer is arranged at the top end of the inner wall of the stirring tank (100).

2. An acrylic acid polymer online viscosity monitoring device according to claim 1, characterized in that: A feeding pipe is connected to the top of the outer wall of the stirring tank (100) and the side away from the detection pipe opening (500), and the detection component includes an electric lifting rod (400), and the bottom ends of the two electric lifting rods (400) are fixed to the top of the outer wall of the stirring tank (100) and are located on both sides of the detection pipe opening (500).

3. An acrylic acid polymer online viscosity monitoring device according to claim 2, characterized in that: A mounting support plate (410) is fixed to the top of the outer wall of the electric lifting rod (400), a viscosity detector body (420) is arranged at the top of the outer wall of the mounting support plate (410), and a viscosity detection head (421) for detecting the viscosity of the acrylic polymer is installed at the bottom end of the viscosity detector body (420) and at a position corresponding to the detection pipe mouth (500).

4. An acrylic acid polymer online viscosity monitoring device according to claim 3, characterized in that: Top sealing plates (510) are hingedly connected to both sides of the top of the outer wall of the detection pipe mouth (500), and annular grooves (511) are provided on the outer walls of the two top sealing plates (510) on the opposite side and at positions corresponding to the viscosity detection head (421), and the annular grooves (511) are used in conjunction with the outer wall of the viscosity detection head (421).

5. An acrylic acid polymer online viscosity monitoring device according to claim 2, characterized in that: The sampling component comprises an annular guide rail (300), the top end of the outer wall of the annular guide rail (300) is fixed to the inner top of the stirring tank (100) and located outside the stirring mechanism (200), and the outer wall of the annular guide rail (300) is slidably connected to an electric control slide seat (310).

6. An acrylic acid polymer online viscosity monitoring device according to claim 5, characterized in that: A hydraulic telescopic rod a (320) is fixedly connected to the top of the outer wall of the electric control slide (310), and a sampling bucket (330) for sampling acrylic polymer is connected to one end of the hydraulic telescopic rod a (320) away from the electric control slide (310).

7. An acrylic acid polymer online viscosity monitoring device according to claim 6, characterized in that: The sampling hopper (330) is arranged at the bottom end of the outer wall of the detection pipe mouth (500) and at a position corresponding to the bottom of the viscosity detection head (421), and an electromagnetic discharge valve for discharging material is arranged at the bottom end of the outer wall of the sampling hopper (330).

8. An acrylic acid polymer online viscosity monitoring device according to claim 6, characterized in that: A side connecting plate (331) is fixed to the side end of the outer wall of the sampling bucket (330) and close to the hydraulic telescopic rod a (320), and the bottom output end of the hydraulic telescopic rod a (320) is fixedly connected to the top end of the outer wall of the side connecting plate (331).

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