High-temperature-resistant cylindrical silicon carbide wear-resistant lining structure

Abstract

The utility model discloses a high-temperature-resistant cylindrical silicon carbide wear-resistant lining structure, which belongs to the technical field of wear-resistant liners, and comprises a first outer cylinder, a second outer cylinder, a first lining part and a second lining part, and the first outer cylinder is connected with the second outer cylinder through a flange structure. The first inner lining part is located on the inner side of the first outer cylinder, the second inner lining part is located on the inner side of the second outer cylinder, and a backing ring is arranged between the first inner lining part and the second inner lining part. And the impact on the shell cannot be directly transmitted to the lining piece, so that the lining piece is well protected.

Description

Technical Field

[0001] The utility model relates to the technical field of wear-resistant linings, and more specifically to a high-temperature resistant cylindrical silicon carbide wear-resistant lining structure. Background Art

[0002] Silicon carbide ceramic material has excellent thermal conductivity, heat resistance and wear resistance. It can be made into lining parts and installed in fluid conveying pipelines, such as sand mills, cyclones, diversion tubes, sandblasting pipelines, etc., which can protect the metal outer pipe and increase the overall service life of the pipeline.

[0003] A cylindrical silicon carbide wear-resistant lining needs to be installed inside a sand mill. However, due to the brittleness of silicon carbide ceramics, the silicon carbide ceramic lining cannot withstand extrusion, knocking, etc. during the installation process, which makes the installation steps of the silicon carbide ceramic lining complicated. In addition, when the sand mill shell is impacted, the internal silicon carbide ceramic lining is also prone to breakage. Therefore, we proposed a high-temperature resistant cylindrical silicon carbide wear-resistant lining structure to solve the above problems. Utility Model Content

[0004] 1. Technical problems to be solved

[0005] In response to the problems existing in the prior art, the purpose of the present utility model is to provide a high-temperature resistant cylindrical silicon carbide wear-resistant lining structure. It forms a gap between the lining part and the outer cylinder through a reasonably designed installation structure, so that the lining part will not be squeezed during installation, and the impact on the outer shell will not be directly transmitted to the lining part, thereby providing good protection for the lining part.

[0006] 2. Technical solution

[0007] In order to solve the above problems, the present invention adopts the following technical solutions.

[0008] A high-temperature resistant cylindrical silicon carbide wear-resistant lining structure includes an outer cylinder and an inner lining member. The outer cylinder includes: a first outer cylinder and a second outer cylinder. The first outer cylinder and the second outer cylinder are connected by a flange structure, and an annular mounting cavity is provided near the inner side of the connection between the first outer cylinder and the second outer cylinder.

[0009] The lining member includes: a first lining member and a second lining member. The first lining member is located on the inner side of the first outer cylinder, and the second lining member is located on the inner side of the second outer cylinder. A gasket is provided between the first lining member and the second lining member. An auxiliary member for pulling the first lining member and the second lining member is provided on the outer side of the gasket. The auxiliary member is located on the inner side of the annular mounting cavity.

[0010] Furthermore, both ends of the first outer cylinder are fixedly connected to first flanges, and both ends of the second outer cylinder are fixedly connected to second flanges.

[0011] Furthermore, an inner support member is fixedly connected to the inner side of the first outer cylinder.

[0012] Furthermore, the inner supporting members are provided in a plurality of groups, each group of inner supporting members has two inner supporting members, and the auxiliary member is located between the two inner supporting members in the same group.

[0013] Furthermore, the auxiliary components include:

[0014] A threaded column, wherein the threaded column is fixedly connected to the outer side of the gasket along the radial direction of the gasket;

[0015] a first protrusion, wherein the first protrusion is fixedly connected to the outer side of the first lining member;

[0016] a second protrusion, the second protrusion being fixedly connected to the outer side of the second lining member;

[0017] The fastening piece is fastened to the outside of the first protrusion and the second protrusion, and the fastening piece is fixedly installed by a nut and a threaded column.

[0018] Furthermore, it also includes: an annular stabilizing member, which is arranged between the end of the outer cylinder and the end of the lining member.

[0019] Furthermore, the cross section of the gasket is narrow inside and wide outside.

[0020] 3. Beneficial effects

[0021] Compared with the prior art, the advantages of the present invention are:

[0022] (1) This solution forms a gap between the inner lining and the outer cylinder by designing a reasonable installation structure. The inner lining is not squeezed during installation, and the impact on the outer shell is not directly transmitted to the inner lining, which plays a good protective role for the inner lining.

[0023] (2) This solution designs an auxiliary part, which uses a pulling method to axially fix the first lining part and the second lining part, and the auxiliary part can also match the annular installation cavity to limit the axial installation of the outer cylinder and the lining part. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0025] Figure 2 This is a schematic diagram of the front structure of the utility model;

[0026] Figure 3 for Figure 2 Sectional view of the section line at AA;

[0027] Figure 4 for Figure 3 A partial enlarged view of point B in the middle;

[0028] Figure 5 This is a schematic structural diagram of the first lining member and the second lining member of the present invention;

[0029] Figure 6 for Figure 5 A partial enlarged view of point C in the middle;

[0030] Figure 7 This is a structural diagram of the first outer cylinder and the first inner lining member of the present invention;

[0031] Figure 8 for Figure 7 A partial enlarged view of point D in the middle;

[0032] Figure 9 This is a structural diagram of the first outer cylinder of the present invention;

[0033] Figure 10 This is a schematic structural diagram of the annular stabilizer of the present invention.

[0034] Description of the numbers in the figure:

[0035] 1. First outer cylinder; 101. First flange; 102. Inner support member; 2. Second outer cylinder; 201. Second flange; 3. First lining member; 301. First protrusion; 4. Second lining member; 401. Second protrusion; 5. Fastener; 6. Gasket; 7. Threaded column; 8. Nut; 9. Annular stabilizer; a. Annular mounting cavity. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the specification of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0037] Example 1:

[0038] See also Figures 1-10 A high-temperature resistant cylindrical silicon carbide wear-resistant lining structure includes an outer cylinder and an inner lining. The inner lining is installed on the inner side of the outer cylinder. The inner lining is made of high-temperature resistant and wear-resistant silicon carbide ceramic material. When fluid particles impact the inner side of the inner lining, it can be considered that the inner lining plays a protective role for the outer cylinder. Of course, when the outer side of the outer cylinder is impacted by external force, it can also be considered that the outer cylinder protects the inner lining.

[0039] The outer cylinder and the inner lining are both provided with multiple sections. The number of sections of the outer cylinder is the same as that of the inner lining. For the sake of convenience, the following description is specifically provided with two sections for both the outer cylinder and the inner lining:

[0040] Specifically, the outer cylinder includes: a first outer cylinder 1 and a second outer cylinder 2. The first outer cylinder 1 and the second outer cylinder 2 are connected by a flange structure, and an annular mounting cavity a is provided near the inner side of the connection between the first outer cylinder 1 and the second outer cylinder 2; the inner lining includes: a first lining 3 and a second lining 4. The first lining 3 is located on the inner side of the first outer cylinder 1, and the second lining 4 is located on the inner side of the second outer cylinder 2. A gasket 6 is provided between the first lining 3 and the second lining 4, and an auxiliary part for pulling the first lining 3 and the second lining 4 is provided on the outer side of the gasket 6. The auxiliary part is located on the inner side of the annular mounting cavity a. The auxiliary part is restricted by the annular mounting cavity a and cannot move axially relative to the outer cylinder.

[0041] In this solution, a gasket 6 is provided between the first inner lining member 3 and the second inner lining member 4. The gasket 6 can be made of elastic material, so that the first inner lining member 3 and the second inner lining member 4 will not contact or squeeze each other, thereby avoiding the risk of the first inner lining member 3 and the second inner lining member 4 breaking during installation. In addition, since there is no direct rigid contact between the first inner lining member 3, the second inner lining member 4 and the first outer cylinder 1, the second outer cylinder 2, when the outside of the outer cylinder is impacted (collided), the outer cylinder will slow down the impact effect and transfer it to the first inner lining member 3 and the second inner lining member 4 through the auxiliary member, thereby effectively protecting the first inner lining member 3 and the second inner lining member 4.

[0042] See also Figure 3-Figure 4 In one embodiment, both ends of the first outer cylinder 1 are fixedly connected to the first flange 101, and both ends of the second outer cylinder 2 are fixedly connected to the second flange 201. The first flange 101 and the second flange 201 are fixedly connected by a set of bolts.

[0043] See also Figure 7-Figure 9 In one embodiment, an inner support member 102 is fixedly connected to the inner side of the first outer cylinder 1. The inner support member 102 is distributed along the axial direction of the first outer cylinder 1. The inner support member 102 is used to increase the structural strength of the first outer cylinder 1. On the other hand, it is also used to limit the auxiliary parts to prevent the inner lining member and the first outer cylinder 1 from rotating relative to each other.

[0044] The inner support members 102 are provided in several groups, each group of inner support members 102 has two inner support members, and the auxiliary member is located between the two inner support members 102 in the same group. This method can limit the rotation of the auxiliary member in two directions (clockwise and counterclockwise).

[0045] The structure of the second outer cylinder 2 is the same as that of the first outer cylinder 1 .

[0046] In one embodiment, the auxiliary component includes: a threaded column 7, a first protrusion 301 fixedly connected to the outer side of the first lining component 3, a second protrusion 401 fixedly connected to the outer side of the second lining component 4, a fastener 5 and a nut 8.

[0047] The threaded column 7 is fixedly connected to the outer side of the gasket 6 along the radial direction of the gasket 6 , the fastening member 5 is buckled on the outer side of the first protrusion 301 and the second protrusion 401 , and the fastening member 5 is fixedly installed with the threaded column 7 through the nut 8 .

[0048] A plurality of auxiliary parts are generally provided, and the plurality of auxiliary parts are distributed in a ring array. The plurality of auxiliary parts cooperate to fix the first lining part 3 and the second lining part 4 , and the auxiliary parts are also fixed together with the gasket 6 .

[0049] See also Figure 3 、 Figure 10 In one embodiment, it also includes: an annular stabilizer 9, which is arranged between the end of the outer cylinder and the end of the inner lining. Generally, the outer cylinder and the inner lining need to be equipped with two sets of annular stabilizers 9. The annular stabilizer 9 plays a supporting role at the end matching position of the outer cylinder and the inner lining.

[0050] See also Figure 4 The cross-section of the gasket 6 is narrow inside and wide outside. The first lining member 3 and the second lining member 4 are raised near the inner end portion, and the ends of the first lining member 3 and the second lining member 4 match the gasket 6.

[0051] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any person skilled in the art who, within the technical scope disclosed in the present invention, makes equivalent substitutions or modifications based on the technical solution and its improved concepts shall be covered by the scope of protection of the present invention.

Claims

1. A high temperature resistant cylindrical silicon carbide wear-resistant lining structure, comprising an outer cylinder and an inner lining, characterized in that: The outer cylinder comprises: a first outer cylinder (1) and a second outer cylinder (2); the first outer cylinder (1) and the second outer cylinder (2) are connected via a flange structure, and an annular mounting cavity (a) is provided near the inner side of the connection between the first outer cylinder (1) and the second outer cylinder (2); The lining member includes: a first lining member (3) and a second lining member (4), wherein the first lining member (3) is located on the inner side of the first outer cylinder (1), and the second lining member (4) is located on the inner side of the second outer cylinder (2), a gasket (6) is provided between the first lining member (3) and the second lining member (4), and an auxiliary member for pulling the first lining member (3) and the second lining member (4) together is provided on the outer side of the gasket (6), and the auxiliary member is located on the inner side of the annular mounting cavity (a).

2. A high temperature resistant cylindrical silicon carbide wear-resistant lining structure according to claim 1, characterized in that: Both ends of the first outer cylinder (1) are fixedly connected to first flanges (101), and both ends of the second outer cylinder (2) are fixedly connected to second flanges (201).

3. The high temperature resistant cylindrical silicon carbide wear-resistant lining structure according to claim 1, characterized in that: An inner support member (102) is fixedly connected to the inner side of the first outer cylinder (1).

4. A high temperature resistant cylindrical silicon carbide wear-resistant lining structure according to claim 3, characterized in that: The inner support members (102) are provided in a plurality of groups, each group of inner support members (102) has two inner support members, and the auxiliary member is located between the two inner support members (102) of the same group.

5. The high temperature resistant cylindrical silicon carbide wear-resistant lining structure according to claim 1, characterized in that: The auxiliary parts include: A threaded column (7), wherein the threaded column (7) is fixedly connected to the outer side of the gasket (6) along the radial direction of the gasket (6); A first protrusion (301), the first protrusion (301) being fixedly connected to the outer side of the first lining member (3); a second protrusion (401), the second protrusion (401) being fixedly connected to the outer side of the second lining member (4); A fastening member (5) is fastened to the outside of the first protrusion (301) and the second protrusion (401), and the fastening member (5) is fixedly installed via a nut (8) and a threaded column (7).

6. The high temperature resistant cylindrical silicon carbide wear-resistant lining structure according to claim 1, characterized in that: Also includes: An annular stabilizing member (9) is provided between the end of the outer cylinder and the end of the lining member.

7. The high temperature resistant cylindrical silicon carbide wear-resistant lining structure according to claim 1, characterized in that: The cross section of the gasket (6) is narrow inside and wide outside.

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