Mixing device for production of silane crosslinked polyethylene cable material

Abstract

The utility model discloses a material mixing device for producing silane crosslinked polyethylene cable materials, which relates to the field of polyethylene manufacturing related technologies and comprises a cabin body, a first stirring cabin is arranged on the upper portion of the cabin body, a second stirring cabin is arranged on the lower portion of the cabin body, and the first stirring cabin is connected with the second stirring cabin through a partition plate. The first stirring cabin comprises a first feeding hole, stirring blades, a first cabin bottom and a first air cylinder; the second stirring cabin comprises a feeding bifurcated pipe, a rubber cabin bottom, a second air cylinder and an electric valve, the first air cylinder pulls down the first cabin bottom to leak materials, the second air cylinder drives the rubber cabin bottom to protrude upwards or sink downwards, materials are thrown and mixed, the problem that the materials are not fully mixed and stirred in the vertical direction is solved, and the stirring efficiency is improved. And the mixing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field related to polyethylene manufacturing, in particular to a mixing device for producing silane cross-linked polyethylene cable materials. Background Art

[0002] Silane cross-linked polyethylene is often used in the production of cable materials. In the manufacturing process of cable materials, there are processes such as material proportioning, mixing, extrusion granulation, and drying. Among them, material proportioning and mixing plays an important role, and the effect of material proportioning and mixing determines the performance stability of polyethylene insulation materials. At present, most mixing devices use stirring blades or centrifugal force generated by the rotation of the bottom impeller. However, both methods can only provide horizontal rotation stirring, and cannot provide vertical stirring and mixing, resulting in insufficient material mixing. Utility Model Content

[0003] The utility model aims to provide a mixing device for producing silane cross-linked polyethylene cable materials, so as to solve the problem of insufficient mixing and stirring of materials in the vertical direction mentioned in the background technology.

[0004] The utility model adopts the following technical solutions:

[0005] The utility model discloses a mixing device for producing silane cross-linked polyethylene cable materials, comprising a cabin, wherein a first mixing cabin is arranged on the upper part of the cabin, and a second mixing cabin is arranged on the lower part of the cabin, and the first mixing cabin is connected with the second mixing cabin through a partition.

[0006] The first mixing chamber is a closed structure, with a first feed port provided at the top of the first mixing chamber, mixing blades provided in the first mixing chamber, a first bottom provided at the lower part of the first mixing chamber, a side wall of the first bottom in sealing and sliding contact with the inner wall of the chamber, the first bottom fixedly connected to the piston rod end of the first cylinder, and the first cylinder fixedly connected to the partition.

[0007] The second mixing chamber includes a feed bifurcated pipe, the head of the feed bifurcated pipe is sealingly and slidingly matched with the reserved hole of the first tank bottom, the feed bifurcated pipe is fixedly connected to the partition, the tank bottom of the second mixing chamber is set as a rubber tank bottom, and the bottom surface of the rubber tank bottom is fixedly connected to the end of the piston rod of the second cylinder.

[0008] Furthermore, the first tank bottom is funnel-shaped, and the bottom surface of the stirring blade is provided with a curved surface that matches the first tank bottom.

[0009] Furthermore, a conical material distribution block is fixedly connected to the port of the first feed port.

[0010] Furthermore, the feed bifurcated pipe includes a bifurcated pipe inlet, and the bifurcated pipe inlet is sealingly and slidingly matched with the reserved hole of the first tank bottom. The bifurcated pipe inlet is a structure with an opening arranged in a circular ring on the waist side wall of the top closed, and a leakage hole is arranged in a circular ring on the waist side wall of the bifurcated pipe inlet. A plurality of bifurcated pipe outlets are arranged at the lower end of the feed bifurcated pipe, and a conical dividing block is fixedly connected to the port of the bifurcated pipe outlet, and the bifurcated pipe outlet is fixedly connected to the partition.

[0011] Furthermore, the bifurcated pipe has at least two discharge ports.

[0012] Furthermore, an electric valve is provided in the middle of the rubber bilge.

[0013] Compared with the prior art, the beneficial technical effects of the utility model are:

[0014] The utility model is provided with the rubber bilge connected with the piston rod of the second cylinder. The piston rod moves up and down, driving the rubber bilge to deform, convex upward or concave downward. When convex upward, the material is bounced up and thrown, and the material falls in the concave rubber bilge, slides toward the center and gathers again. The rubber bilge bounces upward again, and the material bounces up again and diffuses. The process of scattering and gathering is repeated, and the bottom material can be mixed with the top material, so as to solve the problem of insufficient mixing and stirring in the vertical direction and improve the mixing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model will be further described below in conjunction with the accompanying drawings.

[0016] Figure 1 This is a front view of a mixing device for producing silane cross-linked polyethylene cable materials according to the utility model;

[0017] Figure 2 This is a schematic diagram of the first bilge structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the feed port structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the bifurcated pipe inlet structure of the utility model;

[0020] Figure 5 It is a schematic diagram of the bifurcated pipe discharge port structure of the utility model.

[0021] Explanation of the reference numerals in the accompanying drawings: 1. Cabin body; 1-1. Partition; 2. First mixing chamber; 2-1. First feed port; 2-2. Mixing blade; 2-3. First chamber bottom; 2-4. First cylinder; 3. Second mixing chamber, 3-1. Feed bifurcated pipe; 3-1-1. Bifurcated pipe feed port; 3-1-2. Leakage hole; 3-1-3. Bifurcated pipe discharge port; 3-2. Rubber chamber bottom; 3-3. Second cylinder; 3-4. Electric valve. DETAILED DESCRIPTION

[0022] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0023] like Figure 1 As shown, this embodiment discloses a mixing device for producing silane cross-linked polyethylene cable materials, including a cabin 1, a first mixing cabin 2 is arranged on the upper part of the cabin 1, a second mixing cabin 3 is arranged on the lower part of the cabin 1, and the first mixing cabin 2 and the second mixing cabin 3 are connected by a partition 1-1.

[0024] The first mixing chamber 2 is a closed structure, with a first feed port 2-1 disposed at the top of the first mixing chamber 2, a stirring blade 2-2 disposed in the first mixing chamber 2, a first tank bottom 2-3 disposed at the lower part of the first mixing chamber 2, the side wall of the first tank bottom 2-3 is in sealing sliding contact with the inner wall of the chamber body 1, the first tank bottom 2-3 is fixedly connected to the piston rod end of the first cylinder 2-4, and the first cylinder 2-4 is fixedly connected to the partition 1-1. The stirring blade 2-2 is connected to an external motor for rotation and stirring, and after the stirring is completed, the first cylinder 2-4 is started, and when the piston rod of the first cylinder 2-4 moves downward, it will pull the first tank bottom 2-3 downward.

[0025] like Figure 2 As shown, the first bottom 2-3 is funnel-shaped, and the bottom surface of the stirring blade 2-2 is provided with an arc surface that matches the first bottom 2-3. The funnel-shaped design can avoid the problem of accumulation when the material enters the second stirring chamber 3.

[0026] like Figure 3 As shown, a conical material dividing block is fixedly connected to the port of the first feed port 2-1, and when the material enters the first mixing chamber 2, the material can be dispersed under the action of the material dividing block to avoid serious accumulation.

[0027] like Figure 1 As shown, the second mixing chamber 3 includes a feed bifurcated pipe 3-1, the head of the feed bifurcated pipe 3-1 is sealingly and slidingly matched with the reserved hole of the first tank bottom 2-3, the feed bifurcated pipe 3-1 is fixedly connected to the partition 1-1, and the tank bottom of the second mixing chamber 3 is set as a rubber tank bottom 3-2, and the bottom surface of the rubber tank bottom 3-2 is fixedly connected to the end of the piston rod of the second cylinder 3-3.

[0028] In this embodiment, an electric valve 3-4 is provided at the middle position of the rubber bilge 3-2.

[0029] like Figure 1 , Figure 4 and Figure 5 As shown, the feed bifurcated pipe 3-1 includes a bifurcated pipe inlet 3-1-1, which is sealed and slidably matched with the reserved hole of the first tank bottom 2-3, the top of the bifurcated pipe inlet 3-1-1 is closed, and a leakage hole 3-1-2 is provided in a circular ring shape on the waist side wall of the bifurcated pipe inlet 3-1-1, and a plurality of bifurcated pipe outlets 3-1-3 are provided at the lower end of the feed bifurcated pipe 3-1, and a conical material dividing block is fixedly connected to the port of the bifurcated pipe outlet 3-1-3, and the bifurcated pipe outlet 3-1-3 is fixedly connected to the partition 1-1. There are at least two bifurcated pipe outlets 3-1-3. When the first tank bottom 2-3 moves downward under the drive of the first cylinder 2-4 to the point where the material can leak out of the leakage hole 3-1-2, the material will leak into the feed branch pipe 3-1 and flow out to the second mixing chamber 3 at the branch pipe outlet 3-1-3 after diversion.

[0030] The action process of the utility model is as follows:

[0031] First, the material is injected into the first feed port 2-1. Under the action of the material dividing block, the material can be dispersed to avoid the serious accumulation problem. After the feeding is completed, the external motor controls the stirring blade 2-2 to rotate and stir. After the initial stirring is completed, the first cylinder 2-4 is started, and its piston rod moves downward, thereby pulling down the first cabin bottom 2-3. When the leakage hole 3-1-2 leaks, the material will leak into the feed bifurcated pipe 3-1, and flow out to the second mixing chamber 3 through the bifurcated pipe outlet 3-1-3. The second cylinder 3-3 is started, driving the rubber cabin bottom 3-2 to deform upward or concave downward. When it is convex upward, the material is bounced up and thrown away. The material falls into the rubber cabin bottom 3-2 that is concave downward and slides toward the center and gathers again. The rubber cabin bottom 3-2 bounces up again, and the material bounces up and spreads again. The process of scattering and gathering is repeated, and the bottom material can be mixed with the top layer, which improves the mixing efficiency. After the mixing is completed, the electric valve 3-4 is opened to discharge the material.

[0032] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. A mixing device for producing silane cross-linked polyethylene cable materials, characterized in that: It comprises a cabin (1), wherein a first mixing cabin (2) is arranged at the upper part of the cabin (1), and a second mixing cabin (3) is arranged at the lower part of the cabin (1), and the first mixing cabin (2) and the second mixing cabin (3) are connected via a partition (1-1); The first mixing chamber (2) is a closed structure, a first feed port (2-1) is arranged at the top of the first mixing chamber (2), a mixing blade (2-2) is arranged in the first mixing chamber (2), a first chamber bottom (2-3) is arranged at the lower part of the first mixing chamber (2), a side wall of the first chamber bottom (2-3) is in sealing sliding contact with the inner wall of the chamber body (1), the first chamber bottom (2-3) is fixedly connected to the end of the piston rod of the first cylinder (2-4), and the first cylinder (2-4) is fixedly connected to the partition (1-1); The second mixing chamber (3) comprises a feed bifurcated pipe (3-1), the head of the feed bifurcated pipe (3-1) is sealingly and slidably matched with the reserved hole of the first tank bottom (2-3), the feed bifurcated pipe (3-1) is fixedly connected to the partition (1-1), the tank bottom of the second mixing chamber (3) is set as a rubber tank bottom (3-2), and the bottom surface of the rubber tank bottom (3-2) is fixedly connected to the end of the piston rod of the second cylinder (3-3).

2. The mixing device for producing silane cross-linked polyethylene cable material according to claim 1, characterized in that: The first tank bottom (2-3) is funnel-shaped, and the bottom surface of the stirring blade (2-2) is provided with a curved surface that matches the first tank bottom (2-3).

3. The mixing device for producing silane cross-linked polyethylene cable material according to claim 1, characterized in that: A conical material distribution block is fixedly connected to the end of the first feed port (2-1).

4. The mixing device for producing silane cross-linked polyethylene cable material according to claim 1, characterized in that: The feed branch pipe (3-1) includes a branch pipe inlet (3-1-1), the branch pipe inlet (3-1-1) is sealingly and slidingly matched with the reserved hole of the first tank bottom (2-3), the top of the branch pipe inlet (3-1-1) is closed, and the waist side wall of the branch pipe inlet (3-1-1) is provided with a leakage hole (3-1-2) in a circular ring shape, and a plurality of branch pipe outlets (3-1-3) are provided at the lower end of the feed branch pipe (3-1), and a conical branching block is fixedly connected to the port of the branch pipe outlet (3-1-3), and the branch pipe outlet (3-1-3) is fixedly connected to the partition (1-1).

5. The mixing device for producing silane cross-linked polyethylene cable material according to claim 4, characterized in that: The bifurcated pipe has at least two discharge ports (3-1-3).

6. The mixing device for producing silane cross-linked polyethylene cable material according to claim 1, characterized in that: An electric valve (3-4) is arranged in the middle of the rubber bilge (3-2).

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