A replaceable mixing drum with a liner

Abstract

The utility model relates to the technical field of stirring drum, disclose a kind of replaceable stirring drum of lining, including cylinder, stirring mechanism, wherein, cylinder includes cylinder cover, barrel, cylinder bottom, lining, lining is located between cylinder cover, barrel, cylinder bottom three;Lining and barrel slip connection, cylinder cover detachably connected on barrel;When cylinder cover is installed on barrel, cylinder cover and the end close to lining of lining abuts. Through the above technical scheme, the problem that the whole stirring drum is scrapped due to the corrosion of the inner wall of the stirring drum in the prior art is solved.

Description

Technical Field

[0001] This utility model relates to the field of mixing drum technology, and in particular to a mixing drum with replaceable lining. Background Technology

[0002] A mixing drum is a common mixing device used in chemical, pharmaceutical, and food industries. Its service life is usually directly related to the application field and the properties of the substances being mixed.

[0003] Especially in the chemical industry, when stirring acidic or alkaline liquids, acids (such as hydrochloric acid, sulfuric acid, and nitric acid) or bases (such as concentrated sodium hydroxide) easily generate acid or alkaline mists during stirring. These mists permeate the gas phase space of the equipment. They condense on the cylinder wall, which is cooler than the liquid (especially when there is a cooling jacket at the top), forming a highly concentrated liquid film. Concentrated acids or bases are extremely corrosive, causing the inner wall of the cylinder to be more easily corroded than the cylinder itself.

[0004] Therefore, many mixing drums are often scrapped because only the drum wall is corroded, resulting in serious economic losses. Utility Model Content

[0005] The main purpose of this invention is to provide a replaceable lining mixing drum, which aims to solve the problem in related technologies where only the inner wall of the mixing drum is corroded, resulting in the entire mixing drum being scrapped.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows:

[0007] A replaceable liner mixing drum includes a drum body and a mixing mechanism. The drum body includes a lid, a body, a bottom, and a liner. The liner is located between the lid, body, and bottom. The liner is slidably connected to the body, and the lid is detachably connected to the body. When the lid is installed on the body, the lid abuts against the end of the liner closest to it.

[0008] Furthermore, the inner liner is provided with an anti-rotation toothed ring, and the cylinder body is provided with mating toothed grooves for cooperating with the anti-rotation toothed ring.

[0009] Furthermore, the lining is provided with several lifting rings for easy lifting by an external crane, and the lifting rings are evenly distributed around the lining in a circular pattern.

[0010] Furthermore, the number of each of the described ring arrays is an even number.

[0011] Furthermore, each of the aforementioned lifting rings is formed in a groove-like structure on the lining.

[0012] Furthermore, the cylinder cover is provided with an insert groove for inserting the inner liner.

[0013] Furthermore, each of the lifting rings includes a perforated portion and a lifting rod portion, and each of the lifting rod portions has a reinforcing rib at the end close to the bottom of the cylinder, and each of the reinforcing ribs has an arc-shaped structure.

[0014] Furthermore, a sealing ring is provided at the end of the liner that is close to the bottom of the cylinder.

[0015] The working principle and beneficial effects of this utility model are as follows:

[0016] This utility model's technical solution avoids direct contact between the inner wall of the cylinder and the material being stirred by using an inner lining in the traditional cylinder body. This causes erosion and corrosion to mainly occur on the inner lining. Correspondingly, when corrosion occurs on the inner lining, only the inner lining needs to be replaced. This fundamentally solves the problem of having to scrap the entire cylinder when only part of the cylinder wall is corroded.

[0017] Specifically, the cylinder body mainly consists of a cap, a body, and a bottom. The liner is located between these three components. Specifically, the liner is slidably connected to the body, the cap is detachably connected to the body, and the bottom is fixedly connected to the body. Correspondingly, when the cap is installed on the body, it abuts against the end of the liner closest to it, thus securing the liner by the cap fixed to the body. This effectively avoids the need for additional fixing structures, facilitating the liner's fixation. When the liner needs to be replaced, simply remove the cap to replace it, effectively simplifying the disassembly and replacement of the liner. 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 of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of Example 1 or Example 2;

[0020] Figure 2 This is a partial cross-sectional view of Example 1 or Example 2;

[0021] Figure 3 for Figure 2 Enlarged view of a portion of point A in the middle;

[0022] Figure 4 This is a schematic diagram of the lining structure in Example 1 or Example 2;

[0023] Figure 5 for Figure 4 Enlarged view of section B in the middle.

[0024] Explanation of icon numbers:

[0025] 1. Cylinder body; 11. Cylinder cover; 111. Embedded groove; 12. Cylinder body; 121. Mating tooth groove; 13. Cylinder bottom; 14. Inner lining; 141. Anti-rotation toothed ring; 142. Lifting ring; 1421. Perforated part; 1422. Lifting rod part; 1423. Reinforcing rib; 143. Sealing ring; 2. Stirring mechanism.

[0026] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0028] Example 1

[0029] like Figures 1-2 As shown in the figure, this embodiment proposes a replaceable liner mixing drum, including a drum body 1 and a mixing mechanism 2. The drum body 1 includes a drum cover 11, a drum body 12, a drum bottom 13, and a liner 14. The mixing mechanism 2 mainly includes a mixing paddle and a mixing motor. The mixing paddle is rotatably connected to the drum cover 11 and is linked to the output shaft of the mixing motor. At the same time, the drum cover 11 should be provided with a motor seat for fixing the mixing motor to ensure that the mixing motor can stably provide driving force to ensure the stable operation of the mixing work.

[0030] The inner liner 14 is located between the cylinder cover 11, the cylinder body 12, and the cylinder bottom 13. In this way, the inner liner 14 can replace the inner wall of the cylinder body 1 (cylinder body 12) to contact the stirred material in the flow state, so that corrosion and erosion mainly occur on the inner liner 14.

[0031] The connection between the four components is as follows: the inner liner 14 is slidably connected to the cylinder body 12; the cylinder cover 11 is detachably connected to the cylinder body 12; and the cylinder body 12 is fixedly connected to the cylinder bottom 13. When the cylinder cover 11 is installed on the cylinder body 12, the cylinder cover 11 abuts against the end of the inner liner 14 closest to it, while the other end of the inner liner 14 abuts against the cylinder bottom 13. Specifically, when the cylinder cover 11 is installed on the cylinder body 12, the cylinder cover 11 abuts against the end of the inner liner 14 closest to it, that is, the inner liner 14 is fixed by the cylinder cover 11 fixed to the cylinder body 12, effectively avoiding the need for additional fixing structures to fix the inner liner, thus facilitating the fixing of the inner liner 14. When the inner liner 14 needs to be replaced, only the cylinder cover 11 needs to be removed to replace the inner liner 14, effectively facilitating the disassembly, assembly, and replacement of the inner liner 14. Furthermore, the replaceable liner 14 allows this embodiment to replace only the areas of high corrosion incidence (liner 14) of the cylinder 1, ensuring that this embodiment can be used normally. This fundamentally solves the problem that traditional mixing cylinders only have their cylinder walls corroded, requiring the entire cylinder to be scrapped.

[0032] Preferably, the cylinder body 12 and the cylinder bottom 13 are integrally formed to achieve a fixed connection between them, so as to ensure the airtightness between them.

[0033] Preferably, the cap 11 and the body 12 are connected by threads to achieve a detachable connection between the two, effectively ensuring the connection strength, sealing performance and ease of disassembly and assembly.

[0034] Correspondingly, the bottom 13 of the cylinder is provided with a drain valve or a connecting pipe for communicating with the drain valve. In this embodiment, it is preferred to provide a connecting pipe at the bottom 13 of the cylinder to improve the flexibility of use of this embodiment, because the connecting pipe can be used not only to install the drain valve, but also to install an extension pipe.

[0035] like Figures 2-3 As shown, in this embodiment, the inner liner 14 is provided with an anti-rotation toothed ring 141, and the cylinder body 12 is provided with a mating toothed groove 121 for cooperating with the anti-rotation toothed ring 141. That is, after the inner liner 14 is installed into the cylinder body 1, the anti-rotation toothed ring 141 on the inner liner 14 can mesh with the mating toothed groove 121 on the cylinder body 12 to form a mechanical interlock. This structure can effectively limit the circumferential rotation or relative rotation of the inner liner 14 in the cylinder body 12, and ensure that the inner liner 14 maintains a stable assembly state when subjected to torque or vibration loads from the fluid and the stirring mechanism 2, thereby improving the overall rigidity and reliability of this embodiment during operation.

[0036] Preferably, the anti-rotation toothed ring 141 and the inner liner 14 are integrally formed to ensure the connection strength and stability between the two.

[0037] Meanwhile, the inner lining 14 is provided with several lifting rings 142 for easy lifting by an external crane (when the cylinder 1 is large), which makes it convenient for workers to install the inner lining 14 with the help of off-site (such as inside the workshop) lifting equipment. Furthermore, it facilitates the disassembly and assembly work of this embodiment. The lifting rings 142 are evenly distributed around the inner lining 14, which makes it convenient for workers to insert the hook into the inner lining 14 from various angles, effectively improving the flexibility of the inner lining 14 in coordination with the external crane.

[0038] The number of each lifting ring 142 array is even. Correspondingly, when lifting the inner lining 14, at least one set of lifting rings 142 on the same straight line should be used to ensure that the inner lining 14 can be balanced under force when lifting it, so as to facilitate its placement into the cylinder 12 and improve the safety of lifting the inner lining 14.

[0039] like Figures 4-5 As shown, each lifting ring 142 is grooved on the inner liner 14, thereby ensuring that after the cylinder cover 11 is reinstalled back into the cylinder body 12, there is sufficient contact area between the cylinder cover 11 and the inner liner 14, ensuring uniform load distribution, enhancing the compression and shear resistance of the mating surface (between the cylinder cover 11 and the inner liner 14), and preventing the vibration force generated when the inner liner 14 is subjected to force during operation in this embodiment from causing each lifting ring 142 to break or fracture, thus ensuring the overall structural stability of the inner liner 14.

[0040] Specifically, in this embodiment, each lifting ring 142 includes a perforated portion 1421 and a lifting rod portion 1422. That is, by creating a perforated portion 1421 (L-shaped groove) in the inner lining 14, a residual "island" (lifting rod portion 1422) is left in the corresponding area of ​​the inner lining 14, allowing each lifting ring 142 to exist integrally with the inner lining 14, ensuring the connection strength between the two. The lifting rod portion 1422 is used for hooking by the crane hook. Simultaneously, to prevent deformation of each lifting rod portion 1422 when lifted, This causes the inner lining 14 to become unbalanced when it is being lifted. Each end of the lifting rod 1422 that is close to the bottom of the cylinder 13 is provided with a reinforcing rib 1423. Each reinforcing rib 1423 is an arc-shaped structure. That is, the presence of the reinforcing rib 1423 creates an arch-shaped structure between the perforated part 1421 and the lifting rod 1422. By utilizing the structural characteristics of the arch-shaped structure, the stress distribution can be effectively improved, the bending and torsional stiffness of the root of the lifting rod can be increased, and the deformation of the lifting rod 1422 can be prevented, thereby ensuring the balance and safety of the inner lining 14 during the lifting operation.

[0041] The cylinder cover 11 is provided with an insert groove 111 for inserting the inner liner 14. After the cylinder cover 11 is reinstalled back into the cylinder body 12, the cylinder cover 11 can cover the top of the inner liner 14, especially the area where each lifting ring 142 is located. This prevents the stirred material from splashing into the perforated part 1421 and remaining in that part when the stirred material is added into the cylinder body 1 from the feed port on the cylinder cover 11, effectively eliminating the possibility of subsequent cross-contamination.

[0042] Example 2

[0043] Based on Example 1, such as Figure 4 As shown, in this embodiment, the end of the liner 14 close to the bottom 13 of the cylinder is provided with a sealing ring 143. The sealing ring 143 is preferably made of acid and alkali resistant elastic material such as fluororubber. When the liner 14 is installed in the cylinder 1, the sealing ring 143 at its bottom can deform due to the contact relationship between the liner 14 and the bottom 13 of the cylinder, thereby blocking the gap between the two. This prevents a small amount of stirred material from entering the gap between the two during the operation of this embodiment, thereby avoiding problems such as residue, corrosion, bacterial growth or cleaning difficulties. This significantly improves the sealing reliability, hygiene level and maintenance convenience of the equipment.

[0044] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0045] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A replaceable-lined stirring drum, comprising a drum body (1) and a stirring mechanism (2), characterized in that, The cylinder (1) includes a cylinder cover (11), a cylinder body (12), a cylinder bottom (13), and an inner liner (14), wherein the inner liner (14) is located between the cylinder cover (11), the cylinder body (12), and the cylinder bottom (13); The inner liner (14) is slidably connected to the cylinder body (12), and the cylinder cover (11) is detachably connected to the cylinder body (12); When the cap (11) is installed on the cylinder body (12), the cap (11) abuts against the end of the liner (14) closest to it.

2. The replaceable-lined mixing drum according to claim 1, characterized in that, The inner liner (14) is provided with an anti-rotation toothed ring (141), and the cylinder body (12) is provided with a mating toothed groove (121) for cooperating with the anti-rotation toothed ring (141).

3. The replaceable-lined mixing drum according to claim 1, characterized in that, The inner lining (14) is provided with several lifting rings (142) for easy lifting by an external crane. The lifting rings (142) are evenly distributed around the inner lining (14).

4. The replaceable-lined mixing drum according to claim 3, characterized in that, The number of each of the described ring (142) arrays is an even number.

5. The replaceable-lined mixing drum according to claim 3, characterized in that, Each of the aforementioned lifting rings (142) is formed in a groove-like structure on the inner lining (14).

6. The replaceable-lined mixing drum according to claim 2 or 5, characterized in that, The cap (11) is provided with an insert groove (111) for inserting the inner liner (14).

7. The replaceable-lined mixing drum according to claim 5, characterized in that, Each of the lifting rings (142) includes a perforated part (1421) and a lifting rod part (1422). Each of the lifting rod parts (1422) has a reinforcing rib (1423) at one end close to the bottom of the cylinder (13). Each of the reinforcing ribs (1423) has an arc-shaped structure.

8. The replaceable-lined mixing drum according to claim 1, characterized in that, The inner lining (14) is provided with a sealing ring (143) at one end close to the bottom of the cylinder (13).

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