Grinding equipment with dispersed feed port

Abstract

The utility model provides grinding equipment with a dispersed feeding port. The grinding equipment comprises a grinding unit, the feeding port connected to the side wall of the grinding unit, a discharging port connected to the bottom of the grinding unit, a supporting mechanism installed at the lower end of the grinding unit and a filter screen installed in the grinding unit. The feeding port is horizontally connected with a feeding pipeline, the feeding pipeline comprises a main pipeline and a branch pipeline communicated with the main pipeline, and the branch pipeline penetrates through the feeding port and is communicated into the cavity of the grinding unit; the branch pipeline comprises a first branch pipeline and a second branch pipeline which are symmetrically arranged along the central axis of the main pipeline, and the first branch pipeline and the second branch pipeline are both communicated with the main pipeline. According to the grinding equipment with the disperse feeding port, disperse feeding can be conducted on PPTA polymers, impact on key components such as a filter screen in the grinding equipment during feeding is effectively reduced, and the maintenance cost of the grinding equipment is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of high molecular polymer grinding equipment, and in particular to a grinding equipment with a dispersed feed port. Background Art

[0002] Poly(propylene terephthalate) (PPTA) is a high-performance polymer with excellent mechanical properties, heat resistance, chemical resistance and UV resistance. It is widely used in industrial fields such as high-performance fibers, plastic products, special textiles, etc.

[0003] In the PPTA synthesis process, to achieve uniform mixing of the PPTA polymer, it must be fed into a grinding machine for grinding to produce micron-sized particles. To initially filter the PPTA polymer, a filter is installed at the feed port of the PPTA grinding machine. However, the feed port of conventional PPTA grinding machines typically utilizes a straight or curved cylinder. Due to the high hardness of PPTA, feeding can easily cause significant impact on the filter and grinding machine. This can lead to filter damage and wear of the grinding machine over long periods of operation, increasing maintenance costs. Utility Model Content

[0004] The purpose of the utility model is to provide a grinding device with a dispersed feed port, thereby reducing the impact on key components such as the filter screen in the grinding device during feeding, and reducing the maintenance cost of the grinding device.

[0005] This application is achieved through the following technical solutions, specifically:

[0006] A grinding device with a dispersed feed port comprises: a grinding unit, a feed port connected to the side wall of the grinding unit, a discharge port connected to the bottom of the grinding unit, a support mechanism installed at the lower end of the grinding unit and a filter installed in the grinding unit; characterized in that the feed port is horizontally connected to a feed pipe, the feed pipe comprises a main pipe and a branch pipe connected to the main pipe, the branch pipe passes through the feed port and is connected to the cavity of the grinding unit; the branch pipe comprises a first branch pipe and a second branch pipe symmetrically arranged along the central axis of the main pipe, and the first branch pipe and the second branch pipe are both connected to the main pipe.

[0007] In this solution, by providing a feed port connected to a feed pipeline consisting of a main pipeline and a branch pipeline, the PPTA polymer flowing at a high speed during the feeding process is evenly dispersed, thereby reducing the impact of the PPTA polymer on key components such as the filter screen in the grinding equipment due to its high hardness and fast feeding speed, reducing the wear of the grinding equipment and lowering the maintenance cost of the equipment.

[0008] As an improvement to the branch pipes in the present application, in order to further reduce the impact of the PPTA polymer on the grinding equipment, evenly distributed baffles are respectively provided in the lumens of the first branch pipe and the second branch pipe.

[0009] As an improvement to the feed pipe in the present application, in order to ensure the stability of the grinding equipment, the feed pipe also includes: a first flange fixedly connected to the outer pipe wall of the feed pipe, and the feed pipe is connected to the feed port through the first flange.

[0010] Furthermore, the first flange is provided at the connection between the main pipe and the branch pipe.

[0011] As an improvement to the feed pipe in the solution of the present application, the openings at both ends of the main pipe have different diameters, and the end with the smaller diameter is connected to the branch pipe.

[0012] The beneficial effects of this application are:

[0013] The present application provides a feed port connected to a feed pipe consisting of a main pipe and a branch pipe to uniformly disperse the PPTA polymer flowing at a high speed during the feeding process, thereby reducing the impact of the PPTA polymer on key components such as the filter screen in the grinding equipment due to its high hardness and fast feeding speed, reducing the wear of the grinding equipment and reducing the maintenance cost of the equipment.

[0014] In addition to the technical problems solved by the present invention, the technical features that constitute the technical solutions, and the advantages brought about by the technical features of these technical solutions described above, other technical problems that can be solved by the present invention, other technical features included in the technical solutions, and the advantages brought about by these technical features will be further described in detail in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Schematic diagram of the structure of a grinding device with a dispersed feed port in an embodiment of the present application;

[0016] Figure 2 Schematic diagram of the cross-sectional structure of a grinding device with a dispersed feed port in an embodiment of the present application;

[0017] Figure 3This is a schematic structural diagram of a feed pipe in an embodiment of the present application;

[0018] Figure 4 It is a schematic diagram of the cross-sectional structure of a feed pipe in an embodiment of the present application.

[0019] Description of reference numerals:

[0020] 1. Grinding unit; 11. Filter; 2. Feed port; 3. Discharge port; 4. Support mechanism; 5. Feed pipe; 51. Main pipe; 52. Branch pipe; 53. First branch pipe; 54. Second branch pipe; 55. First flange; 6. Baffle. DETAILED DESCRIPTION

[0021] The following will be combined with the Figures 1 to 4 The embodiments of the technical solution of the present application are described in detail. The following embodiments are only used to more clearly illustrate the technical solution of the present application and are therefore only examples and are not intended to limit the scope of protection of the present application. In addition, the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

[0022] In view of the problems existing in the prior art in the background technology, such as Figures 1-2 As shown, an embodiment of the present application provides a grinding device with a dispersed feed port, comprising: a grinding unit 1, a feed port 2 connected to the side wall of the grinding unit 1, a discharge port 3 connected to the bottom of the grinding unit 1, a support mechanism 4 installed at the lower end of the grinding unit 1 and a filter screen 11 installed in the grinding unit 1; it is characterized in that the feed port 2 is horizontally connected to a feed pipe 5, the feed pipe 5 includes a main pipe 51 and a branch pipe 52 connected to the main pipe 51, the branch pipe 52 passes through the feed port 2 and is connected to the cavity of the grinding unit 1; the branch pipe 52 includes a first branch pipe 53 and a second branch pipe 54 symmetrically arranged along the central axis of the main pipe 51, and the first branch pipe 53 and the second branch pipe 54 are both connected to the main pipe 51.

[0023] Specifically, the grinding unit 1 and the filter screen 11 are key components of the grinding equipment. The grinding unit 1 is used to grind the PPTA polymer input from the feed port 2 so that it reaches the particle size standard required for the preparation of PPTA. It should be noted that the grinding unit 1 can use different types of grinding components according to actual use needs, and this application does not impose any restrictions on the type and structure of the grinding unit 1. The filter screen 11 is installed at the feed port connection of the grinding unit 1 and is used to perform preliminary filtration on the PPTA polymer entering the grinding cavity to prevent large particles of impurities from entering the grinding area. A discharge port 3 for discharging the ground PPTA polymer is provided at the bottom of the grinding unit 1, and a support mechanism 4 is used to provide stable support for the grinding unit 1.

[0024] In this embodiment, the feed port 2 is connected to a feed pipe 5 consisting of a main pipe 51 and a branch pipe 52. The main pipe 51 is connected to a silo for the PPTA polymer, while the branch pipe 52 is connected to the other end of the main pipe 51 and extends through the feed port 2 into the cavity of the grinding unit 1. This allows the material to be dispersed by the branch pipe 52 before entering the grinding cavity, thereby reducing the material's direct impact on the filter 11 and the grinding unit 1. Furthermore, the first branch pipe 53 and the second branch pipe 54 are symmetrically arranged along the central axis of the main pipe 51, so that the material is evenly distributed to the first branch pipe 53 and the second branch pipe 54 upon entering the branch pipe 52. This improves the uniformity of the distribution of the PPTA polymer in the grinding unit 1 and helps improve grinding efficiency and quality.

[0025] The embodiment of the present application provides a feed port connected to a feed pipeline consisting of a main pipeline and a branch pipeline to uniformly disperse the PPTA polymer flowing at a high speed during the feeding process, thereby reducing the impact of the PPTA polymer on key components such as the filter screen in the grinding equipment due to its high hardness and fast feeding speed, reducing the wear of the grinding equipment, and reducing the maintenance cost of the equipment.

[0026] Figures 3-4 The structure diagram of a feed pipe in an embodiment of the present application is shown. Figures 3-4 As shown, in one implementation, evenly distributed baffles 6 are respectively provided in the lumens of the first branch pipe 53 and the second branch pipe 54 .

[0027] Specifically, the function of the baffle 6 is to change the flow direction of the material in the pipeline, so that the material continuously collides and mixes while moving forward, thereby accelerating its dispersion process. In this embodiment, a plurality of baffles 6 are evenly arranged on the inner pipe wall of the first branch pipe 53 and the second branch pipe 54 along the axial direction of the pipe to ensure that the material can be fully decelerated and dispersed in the branch pipe 52 before entering the grinding unit 1, which helps to reduce the wear of the filter screen and the grinding equipment. It should be noted that the parameters such as the number, shape and spacing of the baffles 6 can be adjusted according to the specific properties of the material and the design requirements of the grinding equipment. For example, for PPTA polymers with higher hardness and poorer fluidity, the number and density of the baffles 6 can be appropriately increased to enhance its dispersion effect; while for PPTA polymers with better fluidity, the number of baffles 6 can be appropriately reduced to avoid excessive energy loss.

[0028] Continue to read Figures 1 to 4 In one implementation, the feed pipe 5 further includes: a first flange 55 fixedly connected to the outer pipe wall of the feed pipe 5 , and the feed pipe 5 is connected to the feed port 2 through the first flange 55 .

[0029] Specifically, the design dimensions and specifications of the first flange 55 match the flange interface of the feed inlet 2. In this embodiment, the feed pipe 5 and the feed inlet 2 are tightly connected to the first flange 55 by bolts or other fastening devices, thereby improving the connection stability and sealing between the feed pipe 5 and the feed inlet 2, ensuring that the material can smoothly and stably enter the grinding unit 1 during the grinding process.

[0030] Based on the previous embodiment, to enhance the structural stability of the feed pipe 52, in one implementation, the first flange 55 is disposed at the connection between the main pipe 51 and the branch pipe 52. Based on the stress conditions of the feed pipe 52 during feeding, this embodiment disposes the first flange 55 at a key node for material diversion. This strengthens the connection between the main pipe 51 and the branch pipe 52, improves the durability of the feed pipe 52, and reduces equipment maintenance costs.

[0031] In one implementation, the openings at both ends of the main pipe 51 have different diameters, and the end with the smaller diameter is connected to the branch pipe 52 .

[0032] Specifically, the openings at both ends of the main conduit 51 are designed with different diameters. The smaller end is connected to the branch conduit 52, while the larger end is used to receive the PPTA polymer output from the storage device or reaction equipment. The structure of the main conduit 51 allows the material to undergo a certain degree of flow rate and pressure adjustment within the main conduit 51 before entering the branch conduit 52, thereby ensuring a smoother transition to the branch conduit 52 and reducing problems such as eddy currents, vibration, and material blockage caused by sudden changes in flow rate or pressure fluctuations.

[0033] In the description of the embodiments of this application, unless otherwise specified or limited, technical terms such as "disposed," "equipped with," "connected," and "installed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integrated connections; mechanical connections, electrical connections; and direct connections or indirect connections through an intermediate medium. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of this application based on specific circumstances.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A grinding device with a dispersed feed port, comprising: A grinding unit (1), a feed port (2) connected to a side wall of the grinding unit (1), a discharge port (3) connected to the bottom of the grinding unit (1), a support mechanism (4) installed at the lower end of the grinding unit (1), and a filter screen (11) installed in the grinding unit (1); The invention is characterized in that the feed port (2) is horizontally connected to a feed pipe (5), the feed pipe (5) comprises a main pipe (51) and a branch pipe (52) connected to the main pipe (51), and the branch pipe (52) passes through the feed port (2) and is connected to the cavity of the grinding unit (1); The branch pipe (52) comprises a first branch pipe (53) and a second branch pipe (54) symmetrically arranged along the central axis of the main pipe (51); the first branch pipe (53) and the second branch pipe (54) are both communicated with the main pipe (51).

2. The grinding device with a dispersed feed port according to claim 1, characterized in that Evenly distributed baffles (6) are respectively provided in the lumens of the first branch pipe (53) and the second branch pipe (54).

3. The grinding device with a dispersed feed port according to claim 1, characterized in that The feed pipe (5) further comprises a first flange (55) fixedly connected to the outer pipe wall of the feed pipe (5), and the feed pipe (5) is connected to the feed port (2) via the first flange (55).

4. The grinding device with a dispersed feed port according to claim 3, characterized in that The first flange (55) is provided at the connection between the main pipe (51) and the branch pipe (52).

5. The grinding device with a dispersed feed port according to claim 1, characterized in that The openings at both ends of the main pipe (51) have different diameters, and the end with the smaller diameter is connected to the branch pipe (52).

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