Hydrocyclone overflow elbow with screen pipe

Abstract

The utility model relates to the technical field of hydrocyclone equipment, in particular to a hydrocyclone overflow elbow with a screen pipe, the hydrocyclone overflow elbow is provided with a first connecting pipe, a second connecting pipe and the screen pipe, the screen pipe comprises a screen pipe body and a screen mesh support body, when ore pulp incoming materials are unstable, the fluctuation quantity is large, and ore pulp properties change sharply, the ore pulp flows to the screen pipe through the first connecting pipe, and the screen mesh support body supports the screen mesh support body; the slurry flows out through the screen upper supporting plate and the screen lower supporting plate, and the coarse-grained screen plays a role in isolation, so that part of coarse-grained particles can be effectively prevented from flowing into follow-up sorting equipment, normal and stable operation of the follow-up sorting equipment is guaranteed, the follow-up sorting equipment is prevented from being damaged, and normal production indexes on site are maintained.

Description

Technical Field

[0001] The utility model relates to the technical field of cyclone equipment, in particular to an overflow elbow pipe of a hydrocyclone with a screen pipe. Background Art

[0002] As we all know, hydrocyclone is an effective separation device that uses centrifugal field to accelerate the sedimentation of solid particles in slurry and strengthen the separation process. Its separation principle is: when the slurry is fed into the cyclone feed body, under the action of the strong centrifugal field, the coarse particles with large specific gravity are subjected to a large centrifugal force, and can move along the inner wall of the cyclone and be discharged from the bottom of the cyclone with the downward external cyclone to form the bottom flow; the particles with fine particle size and small specific gravity are subjected to a small centrifugal force and the sedimentation speed is slow. In the process of moving downward together, due to the contraction of the cyclone cone, the discharge capacity of the bottom flow port is limited, forcing them to be discharged from the overflow port at the top of the cyclone with the upward internal cyclone to form an overflow, thereby achieving the purpose of particle size classification. Hydrocyclone is widely used in major mineral selection fields due to its simple structure, small footprint, convenient operation and maintenance, large production capacity, and high separation efficiency.

[0003] In the actual production process of the concentrator, when the upstream slurry is unstable, fluctuates greatly, or the properties of the slurry change drastically, the hydrocyclone may operate abnormally or continuously operate unstably due to changes in operating conditions. This will cause the cyclone overflow to be coarse, and some coarse particles will be discharged from the cyclone overflow elbow, affecting the normal and stable operation of subsequent separation equipment (especially separation equipment with stricter particle size requirements), and may even cause equipment damage, affecting the normal production indicators of the concentrator. Summary of the invention

[0004] In order to solve the above problems, the present application provides an overflow elbow pipe of a hydrocyclone with a screen pipe, which is provided with a first connecting pipe and a second connecting pipe, a screen pipe is provided between the first connecting pipe and the second connecting pipe, the other end of the first connecting pipe is connected to the overflow port on the hydrocyclone, the screen pipe comprises a screen pipe body and a screen support body, the screen pipe body is tubular, and is opened at both ends, a screen pipe inner convex ring is provided inside the screen pipe body, and a support body positioning channel and a support body positioning groove are provided on the screen pipe inner convex ring;

[0005] The screen support body comprises a lower screen support plate and an upper screen support plate, the lower screen support plate is provided with a supporting protrusion, and the upper screen support plate is movably mounted on the lower screen support plate.

[0006] In one embodiment, the support plate below the screen and the support plate above the screen have the same structure, and the outer diameter of the support plate below the screen is equal to the inner diameter of the inner convex ring of the screen tube.

[0007] In one embodiment, the first connecting pipe is a curved pipe, and the second connecting pipe is a straight pipe.

[0008] In one embodiment, the screen pipe is connected to the first connecting pipe and the second connecting pipe by bolt connection, and the upper end of the screen pipe body is provided with an external thread, and the lower end is provided with an internal thread.

[0009] In one embodiment, the number and position of the support protrusions and the support body positioning grooves are correspondingly arranged, and there are at least two support protrusions, which are evenly distributed on the support plate under the screen.

[0010] In one embodiment, the bending angle of the first connecting tube is 180°.

[0011] The beneficial effects of the utility model are:

[0012] The present application discloses an overflow elbow pipe of a hydrocyclone with a screen tube, which is provided with a first connecting pipe, a second connecting pipe, and a screen tube. The screen tube includes a screen tube body and a screen support body. When the incoming slurry is unstable, the fluctuation is large, and the properties of the slurry change drastically, it flows to the screen tube through the first connecting pipe, and the slurry flows out through the support plate on the screen and the support plate under the screen. The coarse screen plays an isolating role, which can effectively prevent some coarse particles from flowing into the subsequent sorting equipment, thereby ensuring the normal and stable operation of the subsequent sorting equipment, preventing the subsequent sorting equipment from being damaged, and maintaining normal production indicators on site. The support plate on the screen and the support plate under the screen play a role in supporting the coarse screen, so as to avoid the screen being damaged by excessive impact of the slurry; the support plate on the screen is movably installed on the support plate under the screen, which is convenient for operators to replace the screen, improves the replacement efficiency of the coarse screen, and can replace the coarse screen with different apertures according to the production situation; the support body positioning groove and the support protrusion are provided to realize the rapid installation and disassembly of the screen support body, thereby improving efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is the front view of the utility model;

[0014] Figure 2 Schematic diagram of the sieve tube structure Figure 1 ;

[0015] Figure 3 This is the front view of the screen tube;

[0016] Figure 4 for Figure 3 Medium AA view;

[0017] Figure 5 Schematic diagram of the sieve tube structure Figure 2 ;

[0018] Figure 6 It is a front view of the screen support body;

[0019] Figure 7 is a top view of the screen support body;

[0020] Figure 8 This is a schematic diagram of the structure of the screen tube in use;

[0021] Explanation of symbols in the figure:

[0022] 1. The first connecting pipe;

[0023] 2. Second connecting pipe;

[0024] 3. Screen tube;

[0025] 31. Screen tube body; 311. Screen tube inner convex ring; 312. Support body positioning channel; 313. Support body positioning groove; 314. External thread; 315. Internal thread;

[0026] 32. Screen support body; 321. Screen lower support plate; 322. Screen upper support plate; 323. Support protrusion;

[0027] 4. Cyclone. DETAILED DESCRIPTION

[0028] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0029] It should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0030] like Figure 1-8 As shown, a hydrocyclone overflow elbow with a screen tube is provided with a first connecting tube 1 and a second connecting tube 2, a screen tube 3 is provided between the first connecting tube 1 and the second connecting tube 2, the other end of the first connecting tube 1 is connected to the overflow port on the hydrocyclone 4, the screen tube 3 includes a screen tube body 31 and a screen support body 32, the screen tube body 31 is tubular, and is opened at both ends;

[0031] A screen tube inner convex ring 311 is arranged inside the screen tube body 31, and a support body positioning channel 312 and a support body positioning groove 313 are arranged on the screen tube inner convex ring 311;

[0032] The screen support body 32 includes a lower screen support plate 321 and an upper screen support plate 322 . The lower screen support plate 321 is provided with a support protrusion 323 . The upper screen support plate 322 is movably mounted on the lower screen support plate 321 .

[0033] Specifically, the screen tube 3 is connected to the first connecting pipe 1 and the second connecting pipe 2 by bolt connection or snap connection. The screen support plate 322 can be installed on the lower support plate 321 of the screen by bolt connection or snap connection. The lower support plate 321 of the screen and the support plate 322 of the screen are both provided with slurry channels. Before use, the coarse screen is laid flat on the lower support plate 321 of the screen, and the support plate 322 of the screen is installed on the lower support plate 321 of the screen. At this time, the coarse screen is placed between the support plate 322 of the screen and the support plate 321 of the screen; the support protrusion 323 is along the support The support body positioning channel 312 moves and is stuck in the support body positioning groove 313. When the incoming slurry is unstable, the fluctuation is large, and the properties of the slurry change drastically, it flows to the screen tube 3 through the overflow port of the cyclone 4 through the first connecting pipe 1, and the slurry flows out through the support plate 322 on the screen and the support plate 321 under the screen. The coarse screen plays an isolation role, which can effectively prevent some coarse particles from flowing into the subsequent sorting equipment, thereby ensuring the normal and stable operation of the subsequent sorting equipment (especially the sorting equipment with stricter particle size requirements), preventing damage to the subsequent sorting equipment, and maintaining normal production indicators on site. The upper support plate 322 and the lower support plate 321 of the screen are provided to support the coarse screen, thereby preventing the screen from being excessively impacted by the slurry and being damaged; the upper support plate 322 is movably installed on the lower support plate 321 of the screen, thereby improving the replacement efficiency of the coarse screen, and the coarse screens of different apertures can be replaced according to production conditions; the support body positioning groove 313 and the support protrusion 323 can realize the rapid installation and disassembly of the screen support body 32, thereby improving efficiency.

[0034] like Figure 5 , 6 As shown in FIG. 7 , the lower support plate 321 of the screen and the upper support plate 322 of the screen have the same structure, and the outer diameter of the lower support plate 321 of the screen is equal to the inner diameter of the inner convex ring 311 of the screen tube.

[0035] Specifically, the lower support plate 321 of the screen is equal to the inner diameter of the inner convex ring 311 of the screen tube, so that the fit is tighter and the slurry is prevented from flowing out from around the screen support body 32 .

[0036] like Figure 1 As shown, the first connecting pipe 1 is a curved pipe, and the second connecting pipe 2 is a straight pipe.

[0037] Specifically, the bending angle of the first connecting pipe 1 is greater than 90°, and in the present embodiment, the bending angle is 180°. The slurry flows to the screen pipe 3 through the first connecting pipe 1. Under the action of the coarse screen, the coarse particles are isolated in the first connecting pipe 1. When the equipment stops running, the screen pipe 3 can be opened to clean the coarse particles remaining in the first connecting pipe 1.

[0038] like Figure 1 , 4 As shown, the screen tube 3 is connected to the first connecting tube 1 and the second connecting tube 2 by bolt connection. The upper end of the screen tube body 31 is provided with an external thread 314, and the lower end is provided with an internal thread 315.

[0039] like Figure 5 , 6 As shown, the number and position of the support protrusions 323 and the support body positioning grooves 313 are set correspondingly, and there are at least two support protrusions 323 that are evenly distributed on the lower support plate 321 of the screen.

[0040] Specifically, the supporting protrusions are evenly distributed on the lower support plate 321 of the screen to avoid force concentration.

[0041] The present application discloses an overflow elbow pipe of a hydrocyclone with a screen pipe, which is provided with a first connecting pipe 1, a second connecting pipe 2, and a screen pipe 3. The screen pipe 3 includes a screen pipe body 31 and a screen support body 32. When the incoming slurry is unstable, the fluctuation is large, and the properties of the slurry change drastically, the slurry flows to the screen pipe 3 through the first connecting pipe 1, and the slurry flows out through the upper support plate 322 of the screen and the lower support plate 321 of the screen. The coarse screen plays an isolating role, which can effectively prevent some coarse-grained particles from flowing into subsequent sorting equipment, thereby ensuring the normal and stable operation of the subsequent sorting equipment, preventing damage to the subsequent sorting equipment, and maintaining normal production indicators on site. The upper support plate 322 and the lower support plate 321 of the screen are provided to support the coarse screen, thereby preventing the screen from being excessively impacted by the slurry and being damaged; the upper support plate 322 is movably installed on the lower support plate 321 of the screen, which is convenient for operators to replace the screen, thereby improving the replacement efficiency of the coarse screen, and the coarse screen with different apertures can be replaced according to production conditions; the support body positioning groove 313 and the support protrusion 323 can realize the rapid installation and disassembly of the screen support body 32, thereby improving efficiency.

[0042] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

[0043] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A hydrocyclone overflow elbow with a screen tube, comprising a first connecting tube (1) and a second connecting tube (2), wherein a screen tube (3) is arranged between the first connecting tube (1) and the second connecting tube (2), wherein the other end of the first connecting tube (1) is connected to an overflow port on a hydrocyclone (4), wherein the screen tube (3) comprises a screen tube body (31) and a screen support body (32), wherein the screen tube body (31) is tubular and has openings at both ends, and wherein: A sieve tube inner convex ring (311) is arranged inside the sieve tube body (31), and a support body positioning channel (312) and a support body positioning groove (313) are arranged on the sieve tube inner convex ring (311); The screen support body (32) comprises a lower screen support plate (321) and an upper screen support plate (322); the lower screen support plate (321) is provided with a support protrusion (323); and the upper screen support plate (322) is movably mounted on the lower screen support plate (321).

2. The overflow elbow of a hydrocyclone with a screen tube according to claim 1, characterized in that: The lower support plate (321) of the screen mesh and the upper support plate (322) of the screen mesh have the same structure, and the outer diameter of the lower support plate (321) of the screen mesh is equal to the inner diameter of the inner convex ring (311) of the screen tube.

3. The overflow elbow of a hydrocyclone with a screen tube according to claim 1, characterized in that: The first connecting pipe (1) is a curved pipe, and the second connecting pipe (2) is a straight pipe.

4. The overflow elbow of a hydrocyclone with a screen tube according to claim 1, characterized in that: The screen tube (3) is connected to the first connecting tube (1) and the second connecting tube (2) by means of bolt connection. The upper end of the screen tube body (31) is provided with an external thread (314), and the lower end is provided with an internal thread (315).

5. The overflow elbow of a hydrocyclone with a screen tube according to claim 1, characterized in that: The number and position of the supporting protrusions (323) and the supporting body positioning grooves (313) are arranged correspondingly, and there are at least two supporting protrusions (323) which are evenly distributed on the lower support plate (321) of the screen.

6. The overflow elbow of a hydrocyclone with a screen tube according to claim 3, characterized in that: The bending angle of the first connecting pipe (1) is 180°.

Images