A mixing device for polypropylene production

Abstract

This utility model discloses a mixing device for polypropylene production, including a main body and a mixing mechanism for removing impurities. The main body includes a shell; the mixing mechanism includes a screen, which is hinged to the inner wall of the shell. Multiple magnetic plates are horizontally arranged on the screen, with equal spacing between them. A screen plate is installed inside the shell, positioned below the screen. A rotating shaft rotatably connects the top of the shell to the top wall panel. This utility model, with its screen and screen plate, uses the screen and magnetic plates to sieve out small-diameter impurities from the raw material while simultaneously adsorbing metallic impurities. Then, a dispersing component on the screen plate breaks up any agglomerated raw materials, and the screen plate can intercept large-diameter impurities. The screened raw material is then mixed by a stirring component, improving product quality.

Description

Technical Field

[0001] This utility model belongs to the field of polypropylene production technology, specifically relating to a mixing device for polypropylene production. Background Technology

[0002] In the production of polypropylene, the main material, polypropylene granules, needs to be mixed evenly with auxiliary materials such as color masterbatch and antioxidants.

[0003] Existing mixing devices mostly use motor-driven stirring devices to mix raw materials. Since the raw materials often contain impurities such as metal shavings, dust, and lumps, direct mixing can lead to defects such as black spots and cracks in the final product, affecting the quality of the product.

[0004] 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

[0005] The purpose of this invention is to provide a mixing device for polypropylene production, which can solve the problem of product defects caused by impurities such as metal shavings, dust and lumps mixed in the raw materials.

[0006] To achieve the above objectives, the technical solution provided by a specific embodiment of this utility model is as follows:

[0007] A mixing device for polypropylene production includes a main body and a mixing and impurity removal mechanism. The main body includes a housing. The mixing and impurity removal mechanism includes a screen, which is hinged to the inner wall of the housing. Multiple magnetic plates are horizontally arranged on the screen and are spaced equally between each other. A screen plate is installed inside the housing and is positioned below the screen. A rotating shaft is rotatably connected between the top of the housing and the top wall panel. A dispersing component and a stirring component are installed on the side wall of the rotating shaft.

[0008] In one or more embodiments of the present invention, a feed trough is installed on the top wall panel of the housing, and a discharge port is provided at the bottom of the side wall of the housing.

[0009] In one or more embodiments of this utility model, the screen is inclined downward from the hinged end to the non-hinged end, and a gap is provided between the non-hinged end of the screen and the inner sidewall of the housing.

[0010] In one or more embodiments of the present invention, a slag guide plate is installed on the inner sidewall of the housing at the bottom of the screen, and the slag guide plate is arranged in a downward inclined manner from the non-fixed end to the fixed end.

[0011] In one or more embodiments of this utility model, the screen is provided with a movable groove, and the rotating shaft passes through the movable groove.

[0012] In one or more embodiments of this utility model, an irregularly shaped driving block is fixedly connected to the side wall of the rotating shaft, and the irregularly shaped driving block is disposed at the bottom of the screen.

[0013] In one or more embodiments of the present invention, the dispersing component includes a pair of dispersing plates, the pair of dispersing plates being fixedly connected to the side wall above the sieve plate on which the rotating shaft is located, and multiple dispersing protrusions being fixedly connected to the front and rear side walls of the pair of dispersing plates.

[0014] In one or more embodiments of the present invention, the stirring assembly includes a plurality of stirring plates, which are respectively fixedly connected to the side wall of the rotating shaft located at the bottom of the sieve plate.

[0015] In one or more embodiments of the present invention, a guide plate is fixedly connected to the inner sidewall of the top wall panel of the housing below the feed trough, and the guide plate is arranged in a downward inclined manner from right to left.

[0016] In one or more embodiments of this utility model, a first slag discharge port is provided on the side wall of the shell at a position corresponding to the hinge end of the slag guide plate, and a second slag discharge port is provided on the side wall of the shell at a position corresponding to the screen plate.

[0017] Compared with the prior art, this utility model is equipped with a screen and a screen plate. The screen and magnetic plate screen out small-diameter impurities in the raw materials and adsorb metal impurities in the raw materials. Then, the clumps of raw materials are broken up by the dispersing component on the screen plate. The screen plate can also intercept large-diameter impurities. The raw materials after impurity removal and screening are then mixed by the stirring component, which improves the quality of the product. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a perspective view of a mixing device for polypropylene production according to an embodiment of the present invention;

[0020] Figure 2 This is a cross-sectional view of a mixing device for polypropylene production according to one embodiment of the present invention.

[0021] Figure 3 This is a cross-sectional view of a mixing device for polypropylene production according to one embodiment of the present invention;

[0022] Figure 4 This utility model Figure 3 A schematic diagram at point A in the middle;

[0023] Figure 5 This is a schematic diagram of the sieve and sieve plate in this utility model.

[0024] Explanation of key figure labels:

[0025] 1-Main body mechanism, 11-Shell, 12-Feed trough, 13-Discharge port, 2-Impurity removal and mixing mechanism, 21-Screen, 22-Magnetic suction plate, 23-Slag guide plate, 24-Screen plate, 25-Rotating shaft, 26-Moving groove, 27-Irregularly shaped drive block, 28-Dispersion plate, 29-Dispersion protrusion, 210-Stirring plate, 211-Guide plate, 212-First slag discharge port, 213-Second slag discharge port, 214-Motor. Detailed Implementation

[0026] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0027] like Figures 1-5 As shown, a mixing device for polypropylene production according to one embodiment of the present invention includes a main body 1 and a mixing and impurity removal mechanism 2. The main body 1 includes a housing 11; the mixing and impurity removal mechanism 2 includes a screen 21, which is hinged to the inner wall of the housing 11. Multiple magnetic suction plates 22 are installed on the screen 21 in a horizontal arrangement, and the multiple magnetic suction plates 22 are arranged at equal intervals. A screen plate 24 is installed inside the housing 11, and the screen plate 24 is located below the screen 21. A rotating shaft 25 is rotatably connected between the top of the housing 11 and the top wall panel. A dispersing component and a stirring component are installed on the side wall of the rotating shaft 25.

[0028] When using this mixing device, the raw materials for polypropylene production are fed into the shell 11. The raw materials fall onto the screen 21, where small-diameter impurities are screened out. Simultaneously, as the raw materials flow on the screen 21, multiple magnetic plates 22 installed on the screen 21 adsorb and treat the metal impurities contained in the raw materials. This allows the raw materials containing small-diameter impurities and metal impurities to fall onto the screen plate 24 for further screening. The dispersing component breaks up any clumps of raw materials on the screen plate 24, allowing for better screening. The dispersing component also improves the screening efficiency of the screen plate 24, ensuring that the qualified raw materials fall below the screen plate 24, while large particles of impurities and raw materials are intercepted. The qualified raw materials screened by the screen plate 24 are mixed by the stirring component at the bottom of the screen plate 24 before being discharged for use. Thus, through the improvement, the raw materials are screened by sieve 21, magnetic suction plate 22 and sieve plate 24 respectively when they are mixed, so that impurities such as metal shavings, dust and lumps in the raw materials are filtered and dispersed, thereby reducing the impurities in the raw materials and improving the quality of the products produced from the raw materials.

[0029] like Figures 1-3 As shown, a feed trough 12 is installed on the top wall of the housing 11, and a discharge port 13 is provided at the bottom of the side wall of the housing 11. The raw material is added into the housing 11 through the feed trough 12, processed, and then discharged through the discharge port 13.

[0030] like Figure 3 As shown, the screen 21 is inclined downwards from the hinged end to the non-hinged end, and a gap is provided between the non-hinged end of the screen 21 and the inner wall of the housing 11. The inclined arrangement of the screen 21 allows the raw material to flow freely on the screen 21, thereby improving the screening efficiency of the screen 21. The gap between the screen 21 and the housing 11 allows the processed raw material to flow downwards through the channel formed by the gap.

[0031] like Figure 3 As shown, a guide plate 23 is installed on the inner wall of the housing 11 at the bottom of the screen 21. The guide plate 23 is arranged in a downward inclined manner from the non-fixed end to the fixed end. This allows small-diameter impurities screened out by the screen 21 to flow downward by themselves through the inclined surface of the guide plate 23, so that the guide plate 23 can separate the screened impurities from the raw materials.

[0032] like Figure 3 and Figure 4 As shown, the screen 21 has a movable groove 26, and the rotating shaft 25 passes through the movable groove 26. Under the action of the movable groove 26, the screen 21 can move up and down on the rotating shaft 25.

[0033] like Figure 3 and Figure 4As shown, a shaped drive block 27 is fixedly connected to the side wall of the rotating shaft 25, and the shaped drive block 27 is located at the bottom of the screen 21. Due to the hinged connection of the screen 21, the non-hinged end of the screen 21 can rotate up and down. When the rotating shaft 25 drives the shaped drive block 27 to rotate, the change in the shaped surface of the shaped drive block 27 can drive the non-hinged end of the screen 21 to move up and down, so that the shaped drive block 27 can drive the screen 21 to vibrate, thereby improving the screening efficiency of the screen 21 for raw materials and preventing raw materials from accumulating on the screen 21. At the same time, the shaped drive block 27 can support the lower end of the screen 21, limiting the range of motion of the screen 21.

[0034] like Figure 2 and Figure 5 As shown, the dispersing assembly includes a pair of dispersing plates 28, which are fixedly connected to the side wall above the screen plate 24 by the rotating shaft 25. Multiple dispersing protrusions 29 are fixedly connected to both the front and rear side walls of the pair of dispersing plates 28. When the rotating shaft 25 drives the pair of dispersing plates 28 above the screen plate 24 to rotate, the dispersing plates 28 can disperse the raw material on the screen plate 24. Simultaneously, the multiple dispersing protrusions 29 on the dispersing plates 28 enhance the dispersing effect on the raw material, thereby improving the screening efficiency of the screen plate 24.

[0035] like Figure 2 and Figure 3 As shown, the mixing assembly includes multiple mixing plates 210, which are respectively fixedly connected to the rotating shaft 25 and placed on the side wall at the bottom of the sieve plate 24. When the rotating shaft 25 drives the multiple mixing plates 210 to rotate, the multiple mixing plates 210 mix the raw materials after screening by the sieve plate 24.

[0036] like Figure 2 and Figure 3 As shown, a guide plate 211 is fixedly connected to the inner sidewall of the top wall panel of the housing 11 below the feed chute 12. The guide plate 211 is arranged in a downward inclined manner from right to left. The raw material entering through the feed chute 12 is guided to the upper end of the screen 21 by the guide plate 211, so as to increase the flow time of the raw material on the screen 21, thereby improving the processing effect of the screen 21 on the raw material.

[0037] like Figure 2 and Figure 3 As shown, a first slag discharge port 212 is provided on the side wall of the shell 11 at a position corresponding to the hinge end of the slag guide plate 23, so that the slag guide plate 23 discharges small-diameter impurities screened out by the screen 21 through the first slag discharge port 212. A second slag discharge port 213 is provided on the side wall of the shell 11 at a position corresponding to the screen plate 24, and large-particle impurities intercepted on the screen plate 24 are discharged through the second slag discharge port 213.

[0038] like Figures 1-3As shown, a motor 214 is installed at the upper end of the rotating shaft 25, and the rotating shaft 25 is driven to rotate by the motor 214.

[0039] In use, the motor 214 is started to drive the rotating shaft 25 to rotate. The rotating shaft 25 then drives the irregularly shaped drive block 27, the dispersing plate 28, and the stirring plate 210 to rotate. When the irregularly shaped drive block 27 rotates, it causes the screen 21 to vibrate up and down. The raw materials for polypropylene production are fed into the housing 11 through the feed chute 12. The raw materials are guided to the upper end of the screen 21 by the guide plate 211, so that the raw materials flow on the screen 21. The screen 21 can screen out small-diameter impurities in the raw materials. At the same time, multiple magnetic plates are set on the screen 21. 22 can adsorb the metal impurities contained in the raw material, so that the raw material with small particle size impurities and metal impurities falls onto the screen plate 24 for screening. The rotation of the dispersing plate 28 and the dispersing protrusions 29 disperses the clumps of raw material on the screen plate 24, so that the clumps of raw material are dispersed and screened. The qualified raw material after screening falls below the screen plate 24, while large particles of impurities and raw materials are intercepted. The qualified raw material screened by the screen plate 24 is stirred and mixed at the bottom of the screen plate 24 by the stirring plate 210 before being discharged for use.

[0040] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0041] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A compounding device for polypropylene production, characterized by, include: The main body structure includes the housing; The impurity removal and mixing mechanism includes a screen that is hinged to the inner wall of a housing. Multiple magnetic plates are horizontally arranged on the screen and are spaced equally between each other. A screen plate is installed inside the housing and is positioned below the screen. A rotating shaft is rotatably connected between the top of the housing and the top wall panel. A dispersing component and a stirring component are installed on the side wall of the rotating shaft.

2. The mixing device for polypropylene production according to claim 1, characterized in that, A feed trough is installed on the top wall panel of the housing, and a discharge port is provided at the bottom of the side wall of the housing.

3. The mixing device for polypropylene production according to claim 1, characterized in that, The screen is inclined downwards from the hinged end to the non-hinged end, and there is a gap between the non-hinged end of the screen and the inner wall of the shell.

4. A mixing device for polypropylene production according to claim 3, characterized in that, A slag guide plate is installed on the inner wall of the housing at the bottom of the screen, and the slag guide plate is arranged in a downward inclined manner from the non-fixed end to the fixed end.

5. The mixing device for polypropylene production according to claim 4, characterized in that, The screen has a movable groove, and the rotating shaft passes through the movable groove.

6. The mixing device for polypropylene production according to claim 1, characterized in that, A shaped drive block is fixedly connected to the side wall of the rotating shaft, and the shaped drive block is located at the bottom of the screen.

7. The mixing device for polypropylene production according to claim 1, characterized in that, The dispersing assembly includes a pair of dispersing plates, which are fixedly connected to the side wall above the screen plate on which the rotating shaft is located. Multiple dispersing protrusions are fixedly connected to the front and rear side walls of the pair of dispersing plates.

8. The mixing device for polypropylene production according to claim 7, characterized in that, The stirring assembly includes multiple stirring plates, which are respectively fixedly connected to the side wall of the rotating shaft located at the bottom of the sieve plate.

9. The mixing device for polypropylene production according to claim 2, characterized in that, The inner sidewall of the top wall panel of the housing is fixedly connected to a guide plate located below the feed chute, and the guide plate is arranged in a downward tilting manner from right to left.

10. The mixing device for polypropylene production according to claim 5, characterized in that, The side wall of the shell is provided with a first slag discharge port at a position corresponding to the hinge end of the slag guide plate, and the side wall of the shell is provided with a second slag discharge port at a position corresponding to the screen plate.

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