Flat-bottom cyclone made of high-chromium wear-resistant alloy

Abstract

The utility model discloses a high-chromium wear-resistant alloy flat-bottom cyclone, which belongs to the technical field of cyclones and comprises an upper cyclone section and a lower cyclone section. A bottom plate of the cyclone lower section is a flat bottom plate, a plurality of wear-resistant linings distributed in a circumferential array are detachably and fixedly mounted on the flat bottom plate, and all the wear-resistant linings jointly form a complete annular wear-resistant lining; the wear-resistant lining comprises a side lining and a bottom lining; the outer side of the bottom lining is fixedly connected with a flange section, a positioning hole is formed in the flange section, and the wear-resistant lining is detachably and fixedly mounted on the flange plate between the lower section of the cyclone and the sand settling nozzle through the flange section. According to the flat-bottom cyclone, the annular wear-resistant lining is mounted on the bottom plate of the lower cyclone section and can completely cover the inner bottom wall of the lower cyclone section, so that the bottom plate of the lower cyclone section can be effectively prevented from being abraded by flowing materials, and the flat-bottom cyclone is simple to disassemble and assemble, economical in cost, high in wear resistance and long in service life. And after the annular wear-resistant lining is mounted, the service life of the flat-bottom cyclone can be greatly prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of cyclones, in particular to a flat-bottom cyclone made of a high-chromium wear-resistant alloy. Background Art

[0002] A cyclone is a device that uses a centrifugal field to separate materials of different densities or particle sizes. It is commonly used in the mining industry.

[0003] Among existing patent documents, there is a patent with publication number CN 208116009 U, entitled "A Flat-Bottom Cyclone." In this patent, the ore body is subjected to long-term erosion by high-speed flow materials. Furthermore, since the bottom flow area of ​​the ore body is a flat plate, wear is more severe at this location. Without wear-resistant protection on the bottom, severe wear requires complete replacement, which significantly shortens the service life of the cyclone. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a flat-bottomed cyclone made of a high-chromium wear-resistant alloy. The flat-bottomed cyclone has an annular wear-resistant lining installed on the bottom plate of the lower section of the cyclone. The annular wear-resistant lining can completely cover the inner bottom wall of the lower section of the cyclone, effectively preventing the flow material from wearing the lower section of the cyclone bottom plate. The utility model is simple to assemble and disassemble, economical in cost, and highly wear-resistant. After installing the annular wear-resistant lining, the service life of the flat-bottomed cyclone can be greatly extended.

[0005] In order to solve the above technical problems, the technical solution of the utility model is achieved as follows:

[0006] A flat-bottomed cyclone made of a high-chromium wear-resistant alloy comprises an upper cyclone section and a lower cyclone section, which are fixedly mounted with a flange. A feed pipe is connected to one side of the upper cyclone section, and an overflow pipe is fixedly mounted on the top of the upper cyclone section via a flange. A sand settling spout is fixedly mounted on the bottom of the lower cyclone section via a flange. The bottom plate of the lower cyclone section is a flat plate, on which multiple wear-resistant liners distributed in a circumferential array are fixedly mounted in a detachable manner. All the wear-resistant liners together form a complete The annular wear-resistant lining is made of high-chromium wear-resistant alloy. The wear-resistant lining includes a side liner that fits the inner side wall of the lower section of the cyclone and a bottom liner that fits the inner bottom wall of the lower section of the cyclone. The bottom liner can completely cover the inner bottom wall of the lower section of the cyclone. A flange section is fixedly connected to the outside of the bottom liner. The flange section has multiple positioning holes. The wear-resistant lining is detachably fixed to the flange between the lower section of the cyclone and the sand settling spout through the flange section. The above detachable fixing installation adopts bolts and nuts.

[0007] By adopting the above solution, the flat-bottomed cyclone is provided with an annular wear-resistant lining installed on the bottom plate of the lower section of the cyclone. The annular wear-resistant lining can completely cover the inner bottom wall of the lower section of the cyclone, effectively preventing the flow material from abrading the bottom plate of the lower section of the cyclone. The lining is simple to assemble and disassemble, economical in cost, and highly wear-resistant. After installation, the service life of the flat-bottomed cyclone can be greatly extended.

[0008] As a preferred embodiment of a flat-bottom cyclone of a high-chromium wear-resistant alloy, the side lining and the bottom lining of the wear-resistant lining are connected as one body, and the side lining and the bottom lining are integrally stamped by a mold.

[0009] By adopting the above solution, in order to improve the strength and rigidity of the wear-resistant lining, the wear-resistant lining is integrally stamped through a mold, which makes it more reliable in application.

[0010] As a preferred embodiment of a flat-bottom cyclone made of a high-chromium wear-resistant alloy, the side lining and the bottom lining are formed with a right angle, a rounded angle or an inclined chamfer.

[0011] With the above solution, in order to meet diversified needs, a right angle can be adopted between the side lining and the bottom lining; in order to further improve the smoothness of the swirl, the right angle can be upgraded to a rounded angle or an inclined chamfer, which helps to gather impurities such as sand and gravel to the sand settling mouth in the middle.

[0012] As a preferred embodiment of a flat-bottom cyclone made of a high-chromium wear-resistant alloy, multiple evenly distributed reinforcing ribs are welded and fixed to the outer side of the fillet or chamfer.

[0013] In order to further improve the stability of the fillet or chamfer by adopting the above solution, the outer side of the fillet or chamfer is reinforced by adding reinforcing ribs.

[0014] As a preferred embodiment of a flat-bottom cyclone made of a high-chromium wear-resistant alloy, at least one vertically upward limiting pin is welded and fixed on the flange section, and the limiting pin is inserted into the flange plate at the bottom of the lower section of the cyclone.

[0015] With the above solution, in order to facilitate the fixation between the flange segment and the flange plate, the flange segment is first limited by the limit pin during installation, thereby facilitating the subsequent fixation of the flange segment.

[0016] After adopting the above technical solution, the beneficial effects of the utility model are:

[0017] 1. The flat-bottom cyclone is equipped with an annular wear-resistant lining on the bottom plate of the lower section of the cyclone. The annular wear-resistant lining can completely cover the inner bottom wall of the lower section of the cyclone, effectively preventing the flow material from wearing the bottom plate of the lower section of the cyclone. It is easy to assemble and disassemble, cost-effective, and has high wear resistance. After installing the annular wear-resistant lining, the service life of the flat-bottom cyclone can be greatly extended.

[0018] 2. In order to improve the strength and rigidity of the wear-resistant lining, the whole is stamped through a mold, which will increase its reliability in application;

[0019] 3. To meet diverse needs, a right angle can be used between the side lining and the bottom lining; to further improve the smoothness of the swirl, the right angle can be upgraded to a rounded angle or an inclined chamfer, which helps to gather sand and gravel and other impurities to the central sand spit;

[0020] 4. In order to further improve the stability of the fillet or chamfer, the outer side of the fillet or chamfer is reinforced by adding reinforcing ribs;

[0021] 5. In order to facilitate the fixation between the flange segment and the flange plate, the flange segment should be limited by the limit pin during installation, so as to facilitate the subsequent fixation of the flange segment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0023] Figure 1 It is a three-dimensional structural diagram of the utility model;

[0024] Figure 2 The wear-resistant lining in Example 1 is installed on Figure 1 The internal three-dimensional structure diagram of the rear;

[0025] Figure 3 for Figure 2 Three-dimensional structure of medium wear-resistant lining Figure 1 ;

[0026] Figure 4 for Figure 2 Three-dimensional structure of medium wear-resistant lining Figure 2 ;

[0027] Figure 5 The wear-resistant lining in Example 2 is installed on Figure 1 The internal three-dimensional structure diagram of the rear;

[0028] Figure 6 for Figure 5 Three-dimensional structure of medium wear-resistant lining Figure 1 ;

[0029] Figure 7 for Figure 5 Three-dimensional structure of medium wear-resistant lining Figure 2 ;

[0030] Figure 8 The wear-resistant lining in Example 2 is installed on Figure 1 The internal three-dimensional structure diagram of the rear;

[0031] Figure 9 for Figure 8 Three-dimensional structure of medium wear-resistant lining Figure 1 ;

[0032] Figure 10 for Figure 8 Three-dimensional structure of medium wear-resistant lining Figure 2 ;

[0033] Markings in the figure: 1-upper section of the cyclone; 2-feeding pipe; 3-overflow pipe; 4-lower section of the cyclone; 5-sand settling spout; 6-side lining; 7-bottom lining; 8-flange section; 9-positioning hole; 10-limit pin. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] Example 1, as Figures 1 to 4As shown, a flat-bottomed cyclone made of a high-chromium wear-resistant alloy comprises an upper cyclone section 1 and a lower cyclone section 4, which are fixedly mounted via a flange. A feed pipe 2 is docked on one side of the upper cyclone section 1, and an overflow pipe 3 is fixedly mounted on the top of the upper cyclone section 1 via a flange. A sand settling spout 5 is fixedly mounted on the bottom of the lower cyclone section 4 via a flange. The bottom plate of the lower cyclone section 4 is a flat plate, on which multiple wear-resistant liners are detachably mounted in a circumferential array, and all the wear-resistant liners together form a complete The annular wear-resistant lining is made of a high-chromium wear-resistant alloy; the wear-resistant lining includes a side lining 6 that fits with the inner side wall of the lower section 4 of the cyclone, and a bottom lining 7 that fits with the inner bottom wall of the lower section 4 of the cyclone. The bottom lining 7 can completely cover the inner bottom wall of the lower section 4 of the cyclone; the outer side of the bottom lining 7 is fixedly connected to a flange section 8, which has multiple positioning holes 9. The wear-resistant lining is detachably fixed to the flange plate between the lower section 4 of the cyclone and the sand settling spout 5 through the flange section 8. The above detachable fixed installation is installed with bolts and nuts. The flat-bottom cyclone is installed with an annular wear-resistant lining on the bottom plate of the lower section 4 of the cyclone. The annular wear-resistant lining can completely cover the inner bottom wall of the lower section 4 of the cyclone, effectively preventing the flow from wearing the bottom plate of the lower section 4 of the cyclone. It is simple to disassemble and assemble, cost-effective, and highly wear-resistant. After installing the annular wear-resistant lining, the service life of the flat-bottom cyclone can be greatly extended.

[0036] like Figures 3 and 4 As shown, the side lining 6 and the bottom lining 7 of the wear-resistant lining are connected as a whole, and the side lining 6 and the bottom lining 7 are stamped as a whole by a mold. In order to improve the strength and rigidity of the wear-resistant lining, the whole is stamped as a whole by a mold, which will have higher reliability in application.

[0037] like Figures 3 and 4 As shown, the side lining 6 and the bottom lining 7 form a right angle.

[0038] like Figure 4 As shown, at least one vertically upward stop pin 10 is welded to the flange section 8. This stop pin 10 is inserted into the flange plate at the bottom of the cyclone lower section 4. To facilitate the securement between the flange section 8 and the flange plate, the stop pin 10 is used to first secure the flange section 8 during installation, thereby facilitating subsequent securement of the flange section 8.

[0039] Example 2, as Figure 1 、 Figures 5 to 7 As shown, this embodiment is an upgraded version of the first embodiment. The only difference between this embodiment and the first embodiment is that the corners between the side lining 6 and the bottom lining 7 are rounded. Multiple evenly distributed reinforcement ribs are welded to the outside of the rounded corners to reinforce the outside of the rounded corners. Upgrading the right angles to rounded corners helps to collect sand and other impurities at the central sand spit 5.

[0040] Example 3, as Figure 1 、 Figures 8 to 10 As shown, this embodiment is an upgraded version of the first embodiment. The only difference between this embodiment and the first embodiment is that the chamfer between the side lining 6 and the bottom lining 7 is inclined. Multiple evenly distributed reinforcement ribs are welded to the outside of the chamfer to reinforce the outside of the chamfer. Upgrading from a right angle to a chamfer helps to collect sand and other impurities toward the central sand spit 5.

[0041] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A flat-bottomed cyclone made of a high-chromium wear-resistant alloy, comprising an upper cyclone section (1) and a lower cyclone section (4), wherein the upper cyclone section (1) and the lower cyclone section (4) are fixedly mounted via a flange; a feed pipe (2) is docked on one side of the upper cyclone section (1), an overflow pipe (3) is fixedly mounted on the top of the upper cyclone section (1) via a flange; and a sand settling spout (5) is fixedly mounted on the bottom of the lower cyclone section (4) via a flange. Its characteristics are: The bottom plate of the lower section (4) of the cyclone is a flat bottom plate, on which a plurality of wear-resistant linings distributed in a circumferential array are detachably fixedly installed, and all the wear-resistant linings together form a complete annular wear-resistant lining; The wear-resistant lining comprises a side lining (6) fitted with the inner side wall of the cyclone lower section (4) and a bottom lining (7) fitted with the inner bottom wall of the cyclone lower section (4); the bottom lining (7) can completely cover the inner bottom wall of the cyclone lower section (4); a flange section (8) is fixedly connected to the outer side of the bottom lining (7); a plurality of positioning holes (9) are provided on the flange section (8); the wear-resistant lining is detachably fixedly mounted on the flange between the cyclone lower section (4) and the sand settling spout (5) through the flange section (8).

2. The flat-bottom cyclone of high chromium wear-resistant alloy according to claim 1, characterized in that: The side lining (6) and the bottom lining (7) of the wear-resistant lining are connected as a whole, and the side lining (6) and the bottom lining (7) are integrally punched together by a mold.

3. The flat-bottom cyclone of high chromium wear-resistant alloy according to claim 2, characterized in that: The side lining (6) and the bottom lining (7) form a right angle.

4. The flat-bottom cyclone of high chromium wear-resistant alloy according to claim 2, characterized in that: There is a rounded corner or an inclined chamfer between the side lining (6) and the bottom lining (7).

5. The flat-bottomed cyclone made of high chromium wear-resistant alloy according to any one of claims 1 to 4, characterized in that: The wear-resistant lining is made of high-chromium wear-resistant alloy.

6. The flat-bottom cyclone of high chromium wear-resistant alloy according to claim 4, characterized in that: The outer sides of the fillets or chamfers are fixedly connected to a plurality of evenly distributed reinforcing ribs.

7. The flat-bottom cyclone of high chromium wear-resistant alloy according to claim 5, characterized in that: At least one vertically upward limiting pin (10) is fixedly mounted on the flange section (8), and the limiting pin (10) is plugged into the flange at the bottom of the cyclone lower section (4).

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