Raw material mixing device for PVC corrugated pipe production

Abstract

The utility model belongs to the technical field of raw material mixing equipment, and particularly relates to a PVC corrugated pipe production raw material mixing device which comprises a mixing tank and a tank bottom at the bottom of the mixing tank, and a rotating shaft driven by a rotating motor is mounted in the mixing tank; a fixing frame is arranged in the mixing tank, the upper end of the fixing frame is fixedly connected with a rotating shaft, a plurality of stirring blades are arranged on the outer side of the rotating shaft in an up-down layering mode and fixedly connected with plate bodies on the two sides of the fixing frame, and separation nets are arranged on the inner side of the fixing frame in an up-down layering mode and located below the stirring blades; the bottom of the fixing frame is fixedly connected with a material stirring part located on the side face of the fixing frame, and the bottom of the material stirring part is attached to the inner side face of the tank bottom. According to the utility model, raw materials can be prevented from being deposited at the bottom, the raw materials are promoted to move upwards to be fully stirred and mixed, and meanwhile, part of large-particle raw materials can be isolated in the middle area of the mixing equipment and are crushed, so that the overall mixing efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of raw material mixing equipment, and in particular relates to a raw material mixing device for PVC corrugated pipe production. Background Technology

[0002] PVC corrugated pipe is a type of pipe made from polyvinyl chloride (PVC) resin as the main raw material, with the addition of plasticizers, stabilizers and other additives, through an extrusion molding process. The raw material mixing process is the first key step in PVC corrugated pipe production. It requires the physical mixing of PVC resin with various functional additives to form a uniform composite. This process directly affects the mechanical strength, weather resistance and production efficiency of the pipe.

[0003] Currently, mixing equipment uses a stirring mechanism for mixing. However, there is a certain distance between the stirring mechanism and the bottom of the mixing tank, especially when the bottom is curved or conical. This causes some materials to settle, making it impossible to effectively guarantee the mixing effect.

[0004] To address the aforementioned issues, this application proposes a raw material mixing device for PVC corrugated pipe production. Utility Model Content

[0005] The purpose of this invention is to provide a mixing device for raw materials in the production of PVC corrugated pipes, which solves the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model is a mixing device for raw materials in PVC corrugated pipe production, including a mixing tank and a tank bottom. A rotating shaft driven by a rotary motor is installed inside the mixing tank.

[0008] The mixing tank is equipped with a fixed frame inside, the upper end of which is fixedly connected to the rotating shaft. Multiple stirring blades are arranged in layers on the outer side of the rotating shaft and are fixedly connected to the plates on both sides of the fixed frame. A partition net is arranged in layers on the inner side of the fixed frame, located below the stirring blades.

[0009] The bottom of the fixing frame is fixedly connected to a material feeding part, which is located on the side of the fixing frame and its bottom is attached to the inner side of the bottom of the tank.

[0010] Furthermore, the lower end of the feeding section has a protruding scraper that rotates and scrapes the inner surface of the bottom of the tank.

[0011] Furthermore, the feeding part has an arc-shaped structure, and the opening faces the same direction as the rotation of the shaft.

[0012] Furthermore, the inner sides of the two side plates of the fixing frame are provided with connecting rods for fixing and connecting the stirring blades.

[0013] Furthermore, clamping plates are provided on the inner sides of the two side plates of the fixing frame, located on the upper and lower sides of the partition net.

[0014] Furthermore, the outer side of the mesh maintains a distance from the inner side of the mixing tank.

[0015] Furthermore, the lower end of the feeding section extends to the edge of the opening at the bottom of the tank.

[0016] This utility model has the following beneficial effects:

[0017] This invention solves the problem of some raw materials not being fully mixed by rotating a scraper that adheres to the bottom of the tank.

[0018] This invention utilizes a layered arrangement of stirring plates with a mesh screen underneath. This design intercepts some large particles of raw material in the upper area when the raw material enters the mixing tank, thereby promoting the mixing efficiency of large particles and preventing the accumulation of a large amount of raw material at the bottom. At the same time, the mesh screen filaments crush the large particles, solving the problem of large raw materials being difficult to mix.

[0019] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying 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 schematic diagram of the internal three-dimensional structure of the mixing tank of this utility model;

[0022] Figure 2 This is a schematic diagram of the internal planar structure of the mixing tank of this utility model;

[0023] Figure 3 This is a partially enlarged structural diagram of part A of this utility model;

[0024] Figure 4 This is a schematic diagram of the combined structure of the feeding part and the rotating shaft of this utility model;

[0025] The attached diagram lists the components represented by each number as follows:

[0026] In the picture:

[0027] 11. Mixing tank; 12. Tank bottom;

[0028] 13. Rotating shaft; 131. Stirring disc;

[0029] 21. Fixture; 211. Connecting rod; 212. Clamping plate;

[0030] 22. Separating net;

[0031] 23. Feeding section; 231. Scraper blade. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around" and other terms indicating orientation or positional relationship are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0034] Please see Figure 1-4 As shown, this utility model is a mixing device for raw materials in PVC corrugated pipe production, including a mixing tank 11 and a tank bottom 12 at its bottom. A rotating shaft 13 driven by a rotary motor is installed inside the mixing tank 11.

[0035] The mixing tank 11 is equipped with a fixed frame 21. The upper end of the frame is a horizontal plate that is fixedly connected to the rotating shaft 13. The two sides are vertical plates that extend downwards, forming a downward opening structure. Multiple stirring blades 131 are arranged in layers on the outer side of the rotating shaft 13 and are fixedly connected to the plates on both sides of the fixed frame 21. These blades are used to stir and mix raw materials in different areas at different heights. The inner side of the fixed frame 21 is equipped with a partition net 22 in layers below the stirring blades 131. This partition net is used to intercept large particles of raw materials, preventing them from directly sinking downwards. At the same time, the filaments inside the partition net 22 create a crushing effect on the large particles of raw materials, thereby promoting the mixing efficiency of the large particles of raw materials.

[0036] The bottom of the fixing frame 21 is fixedly connected to the feeding part 23, which is located on the side of the fixing frame 21. Its bottom is attached to the inner side of the can bottom 12. Depending on the structure of the can bottom 12, the feeding part 23 can be configured as vertical or curved, etc., to be attached to the inner side of the can bottom 12. The lower end of the feeding part 23 extends to the edge of the opening of the can bottom 12.

[0037] Preferably, the lower end of the feeding section 23 has a scraper 231 protruding from it, which rotates and scrapes the inner surface of the tank bottom 12 to scrape out the deposited raw materials, preventing them from sticking to the ground and promoting their mixing with other raw materials.

[0038] Preferably, the material feeding section 23 has an arc-shaped cross-section and the opening faces the same direction as the rotation direction of the rotating shaft 13, which is used to guide the raw material scraped out by the scraper 231 upward.

[0039] Preferably, the inner sides of the two side plates of the fixing frame 21 are provided with connecting rods 211 for fixing the stirring blade 131, so as to fix the end of the stirring blade 131, so as to maintain the stability of the structure during the mixing operation and prevent the outer end from bending or deforming due to the resistance of the raw materials.

[0040] Preferably, clamping plates 212 are provided on the inner sides of the two side plates of the fixing frame 21, located on the upper and lower sides of the partition net 22. They can be connected by bolts or by clamping to fix the partition net 22.

[0041] Preferably, the outer side of the partition 22 is kept at a distance from the inner side of the mixing tank 11 to ensure the flow of raw materials in different areas.

[0042] It is understood that this invention can prevent raw materials from settling at the bottom and promote their upward movement to receive thorough mixing. At the same time, it can also isolate some large particles of raw materials in the middle area of ​​the mixing equipment and perform crushing treatment, thereby improving the overall mixing efficiency.

[0043] A specific application of the operation process in this embodiment is as follows: During the mixing operation, the rotation of the rotating shaft 13 drives the stirring plate 131 to perform stirring and mixing operations, and at the same time drives the fixed frame 21 to rotate in the outer ring area of ​​the mixing tank 11, thereby driving the feeding part 23 fixedly connected to its bottom to rotate. During the rotation of the feeding part 23, the scraper 231 scrapes off the deposited raw material, and under the guidance of the arc structure of the feeding part 23, it enters the stirring and mixing area of ​​the stirring plate 131 for mixing. During this period, the partition 22 located below the stirring plate 131 will intercept large particles of raw material in advance, thereby preventing them from directly depositing downwards. At the same time, the filaments inside the partition 22 are used to crush the large particles of raw material, thereby promoting their decomposition into small particles and accelerating the mixing of raw materials.

[0044] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0045] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A mixing device for raw materials in PVC corrugated pipe production, characterized in that: Includes a mixing tank (11) and a tank bottom (12) at its bottom, with a rotating shaft (13) driven by a rotary motor installed inside the mixing tank (11). The mixing tank (11) is equipped with a fixed frame (21) inside, the upper end of which is fixedly connected to the rotating shaft (13). Multiple stirring blades (131) are arranged in layers on the outer side of the rotating shaft (13) and are fixedly connected to the plates on both sides of the fixed frame (21). A partition net (22) is arranged in layers on the inner side of the fixed frame (21) and is located below the stirring blades (131). The bottom of the fixed frame (21) is fixedly connected to the material feeding part (23), which is located on the side of the fixed frame (21) and its bottom is attached to the inner side of the bottom of the tank (12).

2. The PVC corrugated pipe production raw material mixing device according to claim 1, characterized in that: The lower end of the feeding part (23) has a scraper (231) that rotates and scrapes the inner surface of the bottom of the tank (12).

3. The PVC corrugated pipe production raw material mixing device according to claim 1, characterized in that: The feeding part (23) has an arc-shaped structure, and the opening faces the same direction as the rotation of the rotating shaft (13).

4. The PVC corrugated pipe production raw material mixing device according to claim 1, characterized in that: The inner sides of the two plates of the fixed frame (21) are provided with connecting rods (211) for fixing and connecting the stirring plate (131).

5. The PVC corrugated pipe production raw material mixing device according to claim 1, characterized in that: The inner sides of the two plates of the fixing frame (21) are provided with clamps (212), which are located on the upper and lower sides of the mesh (22).

6. The PVC corrugated pipe production raw material mixing device according to claim 1, characterized in that: The outer side of the mesh (22) maintains a distance from the inner side of the mixing tank (11).

7. The PVC corrugated pipe production raw material mixing device according to claim 1, characterized in that: The lower end of the feeding section (23) extends to the opening edge of the bottom of the tank (12).

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