Corrosion-resistant rotary drum

Abstract

A rotary drum cover is installed on a rotary drum body, a disc frame is arranged in an inner cavity of the rotary drum cover and an inner cavity of the rotary drum body, and a plurality of discs are arranged on the disc frame. A first lining layer is arranged on the inner wall face of the rotary drum body, a second lining layer is arranged on the inner wall face of the rotary drum cover, and the covering range of the first lining layer and the second lining layer covers the portions, making contact with materials, in the rotary drum body and the rotary drum cover. The first lining layer and the second lining layer are made of corrosion-resistant metal materials. The hastelloy lining layers are arranged on the inner wall faces of the portions, making contact with materials, of the rotary drum body and the rotary drum cover, and the parts, making contact with the materials, in the rotary drum are made of hastelloy, so that the corrosion resistance of the rotary drum is improved, the rotary drum is prevented from being corroded by strong-corrosion materials, the strength of the rotary drum is guaranteed, and the service life of equipment is prolonged. And the safety performance of the drum is ensured.

Description

Technical Field

[0001] This utility model relates to the field of separator technology, and in particular to a corrosion-resistant rotary drum. Background Technology

[0002] Separators are widely used in the food, pharmaceutical, chemical, textile, and machinery industries. With the increasing demand for separating highly corrosive materials in the chemical and pharmaceutical industries, traditional separation equipment is prone to failure in highly corrosive environments, resulting in short equipment lifespans and high maintenance costs.

[0003] Disc separators are widely used for separating emulsions due to their simple and robust structure and ability to achieve a high separation factor (Fr≥10000), enabling liquid-liquid separation with different specific gravities. While traditional disc separators can achieve the desired separation effect when used to separate highly corrosive materials, these materials corrode the separator's drum, especially its inner wall. This reduces the drum's strength and shortens the equipment's lifespan. Since the separator is a high-speed rotating device, the drum's strength is crucial; reduced strength due to corrosion also compromises safety, potentially leading to accidents. Utility Model Content

[0004] To address the shortcomings of separators used in highly corrosive environments, the applicant provides a structurally sound corrosion-resistant drum. A highly corrosion-resistant inner lining is installed in the parts of the drum that come into contact with the material, improving the drum's corrosion resistance, preventing it from being corroded by highly corrosive materials, ensuring the drum's strength, extending the equipment's service life, and guaranteeing the drum's safety performance.

[0005] The technical solution adopted in this utility model is as follows:

[0006] A corrosion-resistant drum has a drum cover mounted on a drum body, and a disc holder with several discs mounted inside the internal cavity of both. An inner lining layer one is provided on the inner wall of the drum body, and an inner lining layer two is provided on the inner wall of the drum cover. The coverage area of ​​the inner lining layer one and the inner lining layer two covers the parts of the drum body and the drum cover that come into contact with the material. The inner lining layer one and the inner lining layer two are made of corrosion-resistant metal material.

[0007] As a further improvement to the above technical solution:

[0008] The first inner liner covers the entire inner wall of the drum body, and the outline shape of the first inner liner matches the outline shape of the inner wall of the drum body; the second inner liner covers the entire inner wall of the drum cover, and the outline shape of the second inner liner matches the outline shape of the inner wall of the drum cover.

[0009] The top of the drum body is provided with a fitting part, and the bottom of the drum cover is provided with an insertion part. The insertion part is inserted into the inside of the fitting part, and a padding part is provided between the fitting part and the insertion part. The padding part is provided on the inner lining layer one or the inner lining layer two.

[0010] A distribution plate is provided at the bottom of the disc holder. An annular groove is opened on the inner wall of the bottom side of the inner liner. The bottom of the distribution plate extends into the annular groove, and the bottom surface of the distribution plate abuts against the bottom of the annular groove.

[0011] The middle part of the flow divider plate has several flow holes one, and the bottom of the flow divider plate has several flow holes two; the groove width w of the annular groove is greater than the wall thickness t of the bottom end of the flow divider plate, and the groove depth x1 of the annular groove is less than the hole depth x2 of the flow holes two.

[0012] The drum body is connected to the main shaft through a connecting component; a convex ring is provided in the center of the inner liner corresponding to the connecting component and extending upward, and the convex ring is sleeved on the outside of the connecting component.

[0013] A groove is provided on the top surface of the convex ring, and a first sealing element is provided in the groove. A second sealing element is provided between the inner wall of the convex ring and the outer wall of the connecting component.

[0014] The disc holder, discs, and connecting parts are made of corrosion-resistant metal materials.

[0015] The corrosion-resistant metallic material is Hastelloy.

[0016] The drum body and drum cover are made of high-strength duplex stainless steel.

[0017] The beneficial effects of this utility model are as follows:

[0018] This invention features a Hastelloy alloy lining layer on the inner wall of the drum body and drum cover where they come into contact with materials. By using Hastelloy alloy for the parts inside the drum that come into contact with materials, the corrosion resistance of the drum is improved, preventing the drum from being corroded by highly corrosive materials, ensuring the strength of the drum, extending the service life of the equipment, and ensuring the safety performance of the drum. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0021] Figure 3 for Figure 1 Enlarged view of point B in the middle.

[0022] Figure 4 for Figure 1 A magnified view of point C in the middle.

[0023] In the diagram: 1. Drum body; 11. Assembly part; 2. Drum cover; 21. Insertion part; 3. Disc holder; 31. Diverter plate; 32. Flow hole one; 33. Flow hole two; 4. Disc; 5. Inner liner one; 51. Gasket part; 52. Ring groove; 53. Protruding ring; 54. Groove; 6. Inner liner two; 7. First seal; 8. Second seal; 9. Connecting part; 10. Separation chamber. Detailed Implementation

[0024] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0025] like Figure 1 As shown, the corrosion-resistant drum of this invention includes a drum body 1, a drum cover 2, a disc holder 3, and several discs 4. The drum cover 2 is inserted into the drum body 1, and the internal cavity enclosed by the two forms a separation cavity 10. The disc holder 3 is disposed in the separation cavity 10, and several discs 4 are arranged in a stacked manner from top to bottom on the disc holder 3. The drum body 1 is connected to the main shaft (not shown in the figure) through a connecting component 9. An inner lining layer 5 is provided on the inner wall surface of the drum body 1, covering the entire inner wall surface of the drum body 1, and the outline shape of the inner lining layer 5 matches the outline shape of the inner wall of the drum body 1. An inner lining layer 6 is provided on the inner wall surface of the drum cover 2, covering the entire inner wall surface of the drum cover 2, and the outline shape of the inner lining layer 6 matches the outline shape of the inner wall of the drum cover 2. The inner lining layer 5 and inner lining layer 6 are made of Hastelloy alloy, which has good corrosion resistance and meets the separation requirements of highly corrosive materials (such as acids, alkalis, organic solvents, etc.). This prevents the drum body 1 and drum cover 2 from being corroded by highly corrosive materials, ensuring the strength of the drum, extending the service life of the equipment, and ensuring the safety performance of the drum. A conical flow divider 31 is provided at the lower part of the disc holder 3. Several flow holes 32 are opened in the middle of the flow divider 31, and several flow holes 33 are opened at the bottom of the flow divider 31.

[0026] like Figure 2 As shown, the top of the drum body 1 extends upward and is provided with a fitting part 11 that mates with the drum cover 2. The bottom of the drum cover 2 extends downward and is provided with an insertion part 21, which is inserted into the inner side of the fitting part 11. The top of the inner liner 5 extends upward and covers the inner wall surface of the fitting part 11 to form a padding part 51, which is placed between the fitting part 11 and the insertion part 21. In other embodiments, the padding part 51 can also be provided on the inner liner 6, that is, the outer end of the inner liner 6 is bent and covers the outer wall surface of the insertion part 21 to form the padding part 51.

[0027] like Figure 3As shown, an annular groove 52 is formed on the inner wall of the bottom side of the inner liner 5. The bottom of the diverter plate 31 extends into the annular groove 52, and the bottom surface of the diverter plate 31 abuts against the bottom of the annular groove 52. The groove width w of the annular groove 52 is greater than the wall thickness t of the bottom end of the diverter plate 31, and the groove depth x1 of the annular groove 52 is less than the hole depth x2 of the flow hole 33.

[0028] like Figure 4 As shown, a protruding ring 53 is provided in the center of the inner lining layer 5, corresponding to the connecting component 9, and is provided on the outside of the connecting component 9. A groove 54 is provided on the top surface of the protruding ring 53, and a first sealing element 7 is provided in the groove 54. A second sealing element 8 is provided between the inner wall surface of the protruding ring 53 and the outer wall surface of the connecting component 9.

[0029] The drum body 1 and drum cover 2 are made of high-strength duplex stainless steel. The disc holder 3, disc 4, and connecting parts 9 are made of Hastelloy alloy, which improves corrosion resistance, extends the service life of the equipment, and ensures the safety performance of the drum.

[0030] This invention provides a Hastelloy alloy lining layer on the inner wall of the parts of the drum body 1 and drum cover 2 that come into contact with the material. By using Hastelloy alloy to make the parts of the drum that come into contact with the material, the corrosion resistance of the drum is improved, the drum is prevented from being corroded by highly corrosive materials, the strength of the drum is guaranteed, the service life of the equipment is extended, and the safety performance of the drum is guaranteed.

[0031] The above description is an explanation of the present utility model and not a limitation thereof. The present utility model can be modified in any form without departing from its spirit.

Claims

1. A corrosion-resistant drum, wherein a drum cover (2) is mounted on a drum body (1), and a disc holder (3) is embedded in the internal cavity of both, and a plurality of discs (4) are arranged on the disc holder (3); characterized in that: The inner wall of the drum body (1) is provided with an inner lining layer one (5), and the inner wall of the drum cover (2) is provided with an inner lining layer two (6). The coverage of the inner lining layer one (5) and the inner lining layer two (6) covers the parts of the drum body (1) and the drum cover (2) that come into contact with the material. The inner lining layer one (5) and the inner lining layer two (6) are made of corrosion-resistant metal materials.

2. The corrosion-resistant drum according to claim 1, characterized in that: The inner lining layer 1 (5) covers the entire inner wall surface of the drum body (1), and the outline shape of the inner lining layer 1 (5) matches the outline shape of the inner wall of the drum body (1); the inner lining layer 2 (6) covers the entire inner wall surface of the drum cover (2), and the outline shape of the inner lining layer 2 (6) matches the outline shape of the inner wall of the drum cover (2).

3. The corrosion-resistant drum according to claim 1, characterized in that: The top of the drum body (1) is provided with a fitting part (11), and the bottom of the drum cover (2) is provided with an insertion part (21). The insertion part (21) is inserted into the inner side of the fitting part (11), and a padding part (51) is provided between the fitting part (11) and the insertion part (21). The padding part (51) is provided on the inner lining layer one (5) or the inner lining layer two (6).

4. The corrosion-resistant drum according to claim 1, characterized in that: The disc holder (3) has a distribution plate (31) at the bottom. An annular groove (52) is provided on the inner wall of the bottom side of the inner liner (5). The bottom of the distribution plate (31) extends into the annular groove (52), and the bottom surface of the distribution plate (31) abuts against the bottom of the annular groove (52).

5. The corrosion-resistant drum according to claim 4, characterized in that: The middle part of the flow divider (31) is provided with several flow holes 1 (32), and the bottom of the flow divider (31) is provided with several flow holes 2 (33); the width w of the annular groove (52) is greater than the wall thickness t of the bottom end of the flow divider (31), and the depth x1 of the annular groove (52) is less than the depth x2 of the flow holes 2 (33).

6. The corrosion-resistant drum according to claim 1, characterized in that: The drum body (1) is connected to the main shaft through the connecting component (9); the inner liner (5) has a protruding ring (53) extending upward from the center of the connecting component (9), and the protruding ring (53) is sleeved on the outside of the connecting component (9).

7. The corrosion-resistant drum according to claim 6, characterized in that: A groove (54) is provided on the top surface of the convex ring (53), a first sealing element (7) is provided in the groove (54), and a second sealing element (8) is provided between the inner wall of the convex ring (53) and the outer wall of the connecting component (9).

8. The corrosion-resistant drum according to claim 1, characterized in that: The disc holder (3), disc (4), and connecting parts (9) are made of corrosion-resistant metal materials.

9. The corrosion-resistant drum according to claim 1 or 8, characterized in that: The corrosion-resistant metallic material is Hastelloy.

10. The corrosion-resistant drum according to claim 1, characterized in that: The drum body (1) and drum cover (2) are made of high-strength duplex stainless steel.

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