Sand setting pipe of swirler and swirler

Abstract

The sand setting pipe comprises a first fixing piece, a second fixing piece and a plurality of connecting pipe pieces, the first fixing piece is used for being fixedly connected with the bottom of a cone of the swirler, and a through hole is formed in the connecting position of the first fixing piece and the cone of the swirler; the second fixing piece is arranged opposite to the first fixing piece and is connected with the first fixing piece through a first connecting piece; the connecting pipe pieces abut against one another end to end in the width direction to form a cylinder, one end of the cylinder communicates with the through hole in the first fixing piece, the other end of the cylinder penetrates through the second fixing piece and extends downwards, and a gap is formed between the outer side wall of the cylinder and the second fixing piece. The tops of the multiple connecting pipe pieces are all detachably and fixedly connected with the first fixing piece, an adjusting mechanism is arranged on the outer side wall of each connecting pipe piece, and the adjusting mechanisms are all fixedly connected with the second fixing piece. According to the sand setting pipe and the swirler, the technical problem that the grading effect and the treatment effect of the swirler are poor due to the fact that the ore feeding amount of the swirler is unstable in actual production is solved.

Description

Technical Field

[0001] The invention belongs to the technical field of cyclones, and in particular relates to a sand settling tube of a cyclone and a cyclone. Background Art

[0002] The hydrocyclone is one of the commonly used equipment for solid-liquid separation. It has the advantages of simple structure, easy operation, small footprint, wide processing range, and high classification efficiency. It is widely used in mineral processing, chemical industry, metallurgy, environment and other industries. The hydrocyclone uses the difference in particle size and density between coarse and fine particles. Through centrifugal sedimentation, the coarse particles are discharged through the grit pipe at the bottom of the cone of the cyclone, and the fine particles are discharged through the overflow pipe, thereby achieving the purpose of separation and classification. When the cyclone is used, the size of the grit pipe diameter will affect the internal flow field characteristics of the cyclone when it is working, thereby affecting the classification effect of the cyclone. In general, the reasonable grit pipe diameter is calculated based on the feed rate, ore particle size, mineral processing requirements, etc., combined with empirical formulas. Therefore, the diameter of the grit pipe of the cyclone in existing production is fixed.

[0003] In actual production, due to the instability of the properties of the original ore and the feed particle size, the discharge particle size distribution of the mill will be affected, causing the circulating load of the grinding and grading closed circuit to fluctuate, and then it is necessary to increase / decrease the processing capacity of the grading operation in the grinding section. In order to adapt to these changes, the adjustment can be achieved by adjusting the feed pressure and flow of the cyclone in the grinding and grading operation, but this method will lose the grading efficiency of the cyclone. Specifically, when the feed pressure and feed flow of the cyclone increase / decrease, and the structural parameters of the cyclone are fixed, it is easy to cause the operating parameters and structural parameters to not match, thereby reducing the grading efficiency of the cyclone and increasing the load of the grinding and grading operation. In addition, when the particle size of the cyclone sand settling product is coarse, long-term use will cause the sand settling tube to wear, and the grading effect will also deteriorate, making the entire grinding and grading operation unstable. Summary of the invention

[0004] In order to solve the problems existing in the prior art, the present invention aims to provide a grit tube for a cyclone and a cyclone, wherein the grit tube can solve the technical problem of poor grading and treatment effects of the cyclone caused by unstable ore feed rate in actual production.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is:

[0006] A sand settling tube of a cyclone, the structural features of which are: comprising a first fixing member, a second fixing member and a plurality of connecting tube segments, the first fixing member being used for being fixedly connected to the bottom of the cone of the cyclone, and having a through hole at the connection; the second fixing member being arranged opposite to the first fixing member, and being connected to the first fixing member through the first connecting member; the plurality of connecting tube segments being butted end to end along the width direction to form a cylinder, one end of the cylinder being connected to the through hole on the first fixing member, and the other end extending downward through the second fixing member, and a gap being provided between the outer side wall of the cylinder and the second fixing member; the tops of the plurality of connecting tube segments are all detachably fixedly connected to the first fixing member, and an adjusting mechanism is provided on the outer side wall of each connecting tube segment, and the adjusting mechanism is fixedly connected to the second fixing member; by adjusting the adjusting mechanism, each connecting tube segment is moved in a direction away from or close to the axial center line of the cylinder.

[0007] The cylinder structure formed by connecting multiple connecting segments end to end is used as a sand settling tube, and an adjustment mechanism is set on the outer wall of the connecting segment to adjust the position of each connecting segment, so that the cross-sectional area of ​​the cylinder increases or decreases, so that the diameter of the sand settling tube can be adjusted according to the change of operating parameters in actual production. When the sand settling tube of the present application is used, the bottom of the cyclone cone is connected to the first fixing member, and the inner cavity of the cyclone is connected to the cylinder. When the cross-sectional area of ​​the cylinder needs to be adjusted, the connecting member between the top of the multiple connecting segments and the first fixing member is removed, and the adjustment mechanism is adjusted as needed so that each connecting segment moves away from or close to the axial center line of the cylinder, so that the cross-sectional area of ​​the cylinder increases or decreases. After the adjustment, the connecting segment is fixedly connected to the first fixing member. When the operating parameters of the cyclone change, the diameter of the sand settling tube of the cyclone is appropriately adjusted to increase / decrease the sand settling yield, while weakening / enhancing the pressure difference of the internal flow field of the cyclone, optimizing the classification effect of the cyclone, and achieving the classification effect while improving the processing capacity of the cyclone. In addition, when the wear of the sand settling tube of the cyclone affects the cyclone classification effect, the diameter of the sand settling tube of the cyclone can be appropriately reduced to optimize the cyclone classification effect and stabilize the grinding and classification operation.

[0008] Preferably, the adjustment mechanism comprises a first connecting plate, a first transmission rod, a second transmission rod connected to the first transmission rod, an adjustment rod arranged on the second transmission rod, and a first fixing plate, the bottom of the first fixing plate is fixedly connected to the second fixing member; a fixing plate is arranged on the outer side wall of the connecting pipe segment, and the opposite side walls of the first connecting plate are fixedly connected to the fixing plate and the first transmission rod respectively; the second transmission rod is rotatably connected to the first fixing plate, and a second connecting plate is arranged on the second transmission rod, the second connecting plate is arranged adjacent to the first fixing plate, and the second connecting plate is detachably fixedly connected to the first fixing plate. The adjustment mechanism is fixed between the side wall of the connecting pipe segment and the second fixing member. When the adjustment mechanism is working, the connecting member between the second connecting plate and the first fixing plate and the connecting member between the top of the connecting pipe segment and the first fixing member are disassembled, and the adjustment rod is rotated to rotate the second rotating rod, and the first transmission rod moves in a direction away from or close to the axial center line of the cylinder under the action of the second rotating rod, so that each connecting pipe segment moves in a direction away from or close to the axial center line of the cylinder. After adjustment, the second connecting plate and the first fixing plate and the top of the connecting pipe segment and the first fixing member are connected and fixed. The second connecting plate and the first fixing plate as well as the top of the connecting pipe segment and the first fixing member can be fixedly connected by connecting bolts, which is convenient for connection, fixing and disassembly.

[0009] Preferably, two third connecting plates are provided on the second transmission rod at intervals along the length direction, and the first transmission rod is arranged between the two third connecting plates and is rotatably connected to the two third connecting plates.

[0010] Specifically, a second fixing plate is provided on the second transmission rod, and the second fixing plate and the first fixing plate are respectively arranged on both sides of the first transmission rod; the second fixing plate is rotatably connected to the second transmission rod, and the bottom of the second fixing plate is fixedly connected to the second fixing piece.

[0011] Preferably, the first fixing plate is provided with a first connection hole, and the second connection plate is detachably fixedly connected to the first connection hole; the first fixing member is provided with a plurality of second connection holes along the circumferential direction, and the tops of the plurality of connection tube segments are detachably fixedly connected to the corresponding second connection holes, and the plurality of second connection holes correspond to the first connection holes. The first connection hole on the first fixing plate needs to correspond to the second connection hole on the first fixing member, and when the adjustment rod is rotated, the fixed position between the second connection plate and the first fixing plate changes, and the fixed position between the connection tube segment and the first fixing member also changes accordingly. The first connection hole is provided on the first fixing plate and the second connection hole is provided on the first fixing member, and the first connection hole corresponds to the second connection hole, so that when the fixed position between the second connection plate and the first connection hole changes, the connection tube segment can be connected to the corresponding position on the second connection hole.

[0012] Specifically, a connection plate is provided on the top of each of the plurality of connection pipe segments, and the connection plate is detachably fixedly connected to the second connection hole.

[0013] Preferably, the first connecting hole is an arc-shaped hole, and the second connecting hole is a linear hole.

[0014] Preferably, a circular gasket is provided at the connection between the top of the connecting pipe segment and the first fixing member, and a rectangular gasket is provided at the abutment between two adjacent connecting pipe segments. The provision of a circular gasket can effectively reduce the wear between the connecting pipe segment and the first fixing member, and the provision of a rectangular gasket can not only reduce the wear between the connected pipe segments but also play a sealing role.

[0015] Preferably, at least two connecting segments are provided, and the cross-sectional shape of the connecting segments is an arc shape. When the diameter of the sand settling tube needs to be adjusted to a larger extent, the influence between the connecting segments can be weakened by increasing the number of connecting segments.

[0016] Based on the same inventive concept, the present invention also provides a cyclone, which adopts the sand settling tube of the cyclone as described above, wherein the bottom of the cyclone cone is connected to the first fixing member, and the inner cavity of the cyclone is connected to the cylinder.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The grit tube of the hydrocyclone of the present invention uses a cylindrical structure formed by connecting a plurality of connecting segments end to end as the grit tube, and an adjustment mechanism is provided on the outer side wall of the connecting segment to adjust the position of each connecting segment, so that the cross-sectional area of ​​the cylinder increases or decreases, so that the diameter of the grit tube can be adjusted according to the change of operating parameters in actual production;

[0019] 2. The hydrocyclone of the present invention, when the hydrocyclone operating parameters change, appropriately adjusts the positions of the connecting segments, so that the hydrocyclone sand settling yield is increased / decreased, while the pressure difference of the flow field inside the hydrocyclone is weakened / enhanced, and the classification effect of the hydrocyclone is optimized, so as to achieve the classification effect while improving the processing capacity of the hydrocyclone;

[0020] 3. When the wear of the sand settling tube of the cyclone affects the grading effect of the cyclone, the diameter of the sand settling tube of the cyclone can be appropriately reduced to optimize the grading effect of the cyclone and stabilize the grinding and grading operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the connection structure between the sand settling tube and the cone of the cyclone of the present invention;

[0022] Figure 2 for Figure 1 Schematic diagram of the connection structure of each connecting pipe segment;

[0023] Figure 3 for Figure 2 Schematic diagram of the middle connecting segment structure;

[0024] Figure 4 for Figure 1 Schematic diagram of the structure of the central adjustment mechanism.

[0025] In the figure:

[0026] 1-first fixing part, 2-second fixing part, 3-connecting tube segment, 4-cylinder, 5-adjusting mechanism, 501-first connecting plate, 502-first transmission rod, 503-second transmission rod, 504-adjusting rod, 505-first fixing plate, 506-first connecting hole, 507-second connecting plate, 508-third connecting plate, 509-second fixing plate, 6-fixed plate, 7-second connecting hole, 8-connecting plate, 9-cyclone, 10-first connecting part. DETAILED DESCRIPTION

[0027] The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict. For the convenience of description, if the words "upper", "lower", "left" and "right" appear in the following, they only indicate that the upper, lower, left and right directions are consistent with the drawings themselves, and do not limit the structure.

[0028] like Figure 1 and Figure 2 As shown, the sand settling tube of the hydrocyclone of this embodiment includes a first fixing member 1, a second fixing member 2 and four connecting pipe sheets 3. The first fixing member 2 is used to be fixedly connected to the bottom of the cone of the hydrocyclone 9, and a through hole is provided at the connection. The second fixing member 2 is arranged opposite to the first fixing member 1, and is connected to the first fixing member 1 through four first connecting members 10. Figure 3 As shown, the cross-section of the connecting pipe segment 3 is in the shape of an arc, a connecting plate 8 is provided on the top of the connecting pipe segment 3, and a fixing plate 6 is provided on the outer side wall. Figure 2 As shown, four connecting segments 3 are butted end to end in the width direction to form a cylinder 4, which serves as a sand settling tube of the cyclone. A rectangular gasket is provided at the joints of two adjacent connecting segments 3. The upper end of the cylinder 4 is connected to the through hole on the first fixing member 1, and the lower end extends downward through the second fixing member 2, and a gap is provided between the outer wall of the cylinder 4 and the second fixing member 2. Eight second connecting holes 7 are provided on the first fixing member 1 along the circumferential direction, and the second connecting holes 7 are linear holes. The connecting plates 8 on the tops of the four connecting segments 3 are detachably fixed to the corresponding second connecting holes 7 by connecting bolts, and a circular gasket is provided at the connection between the connecting plate 8 and the first fixing member 1.

[0029] like Figure 1 and Figure 4As shown, an adjustment mechanism 5 is provided on the outer side wall of each connecting pipe segment 3. The adjustment mechanism 5 includes a first connecting plate 501, a first transmission rod 502, a second transmission rod 503 connected to the first transmission rod 502, an adjustment rod 504 arranged on the second transmission rod 503, a first fixing plate 505 and a second fixing plate 509. The opposite side walls of the first connecting plate 501 are fixedly connected to the fixing plate 6 and the first transmission rod 502 respectively. Two third connecting plates 508 are arranged on the second transmission rod 503 at intervals along the length direction. The outer end of the first transmission rod 502 is arranged between the two third connecting plates 508 and is rotatably connected to the two third connecting plates 508 by connecting bolts. The first fixing plate 505 and the second fixing plate 509 are respectively arranged at opposite ends of the second transmission rod 503. The second transmission rod 503 passes through the first fixing plate 505. The first fixing plate 505 and the second fixing plate 509 are both rotatably connected to the second transmission rod 503. The bottoms of the first fixing plate 505 and the second fixing plate 509 are both fixedly connected to the second fixing member 2. The adjusting rod 504 is arranged on the outer end of the second transmission rod 503, and the adjusting rod 504 and the first fixing plate 505 are located on the same side of the second transmission rod 503. The second transmission rod 503 is provided with a second connecting plate 507, and the second connecting plate 507 is arranged adjacent to the first fixing plate 505. The first fixing plate 505 is provided with a first connecting hole 506, and the second connecting plate 507 is detachably fixedly connected to the first connecting hole 506 by connecting bolts, and the first connecting hole 506 is an arc-shaped hole.

[0030] like Figure 1 As shown, this embodiment also provides a cyclone, which adopts the sand settling tube of the cyclone as described above, the bottom of the cone of the cyclone 9 is connected to the first fixing member 2, and the inner cavity of the cyclone 9 is connected to the cylinder 4.

[0031] In actual production, when the cyclone feed rate is higher / lower than the normal processing capacity of the cyclone, in addition to adjusting the cyclone feed pressure, feed concentration and other parameters, it can also be achieved by adjusting the diameter of the cyclone sand settling pipe. The specific adjustment method includes the following steps:

[0032] S1. Loosen the connecting bolts between the second connecting plate 507 and the first connecting hole 506 and between each connecting plate 8 and the corresponding second connecting hole 7;

[0033] S2. The adjusting rods 504 on the four adjusting structures 5 are rotated, and the second transmission rod 503 rotates and drives the first transmission rod 502 to move away from or close to the axial center line of the cyclone 9, so that each connecting tube segment 3 moves away from or close to the axial center line of the cyclone 9, thereby increasing or decreasing the cross-sectional area of ​​the cylinder 4;

[0034] S3. After the adjustment is completed, the connecting bolts between the second connecting plate 507 and the first connecting hole 506 and between each connecting plate 8 and the corresponding second connecting hole 7 are tightened, and finally the adjustment of the diameter of the cyclone sand settling tube is completed to achieve the regulation of the cyclone's ore processing capacity.

[0035] In this embodiment, the sand settling pipe of the cyclone is composed of a plurality of connecting pipe segments 3. When the distance that the connecting pipe segments 3 need to be adjusted is large, the influence between the connecting pipe segments 3 can be reduced by increasing the number of connecting pipe segments 3. The first connecting hole 506 is an arc-shaped hole structure within a fixed range, and the second connecting hole 7 is a linear hole structure within a fixed range, corresponding to the adjustment range of the diameter of the sand settling pipe of the cyclone, and the gears at the two places need to correspond one to one. The annular rubber gasket arranged between the connecting plate 8 and the first fixing part 1 can effectively reduce the wear between the two fixing parts. The rectangular rubber gasket arranged between the two connecting pipe segments 3 can reduce the wear between the pipe segments and play a sealing role at the same time.

[0036] The contents explained in the above embodiments should be understood as these embodiments are only used to more clearly illustrate the present invention, and are not used to limit the scope of the present invention. After reading the present invention, various equivalent forms of modifications to the embodiments made by those skilled in the art fall within the scope defined by the claims attached to the present invention.

Claims

1. A sand settling tube of a cyclone, characterized in that: It comprises a first fixing member (1), a second fixing member (2) and a plurality of connecting pipe sheets (3), wherein the first fixing member (2) is used for being fixedly connected to the bottom of the cone of the cyclone (9), and a through hole is provided at the connection point; The second fixing member (2) is arranged opposite to the first fixing member (1), and is connected to the first fixing member (1) via a first connecting member (10); A plurality of the connecting pipe sheets (3) are connected end to end in the width direction to form a cylinder (4), one end of the cylinder (4) is connected to a through hole on the first fixing member (1), and the other end passes through the second fixing member (2) and extends downward, and a gap is provided between the outer wall of the cylinder (4) and the second fixing member (2); The tops of the plurality of connecting pipe segments (3) are detachably fixedly connected to the first fixing member (1), and an adjustment mechanism (5) is provided on the outer side wall of each connecting pipe segment (3), and the adjustment mechanism (5) is fixedly connected to the second fixing member (2); By adjusting the adjustment mechanism (5), each connecting pipe segment (3) is moved in a direction away from or close to the axial center line of the cylinder (4).

2. The sand settling tube of the cyclone according to claim 1, characterized in that: The adjusting mechanism (5) comprises a first connecting plate (501), a first transmission rod (502), a second transmission rod (503) transmission-connected to the first transmission rod (502), an adjusting rod (504) arranged on the second transmission rod (503), and a first fixing plate (505), wherein the bottom of the first fixing plate (505) is fixedly connected to the second fixing member (2); a fixing plate (6) is arranged on the outer side wall of the connecting pipe segment (3), and opposite side walls of the first connecting plate (501) are respectively fixedly connected to the fixing plate (6) and the first transmission rod (502); the second transmission rod (503) is rotationally connected to the first fixing plate (505), and a second connecting plate (507) is arranged on the second transmission rod (503), wherein the second connecting plate (507) is arranged adjacent to the first fixing plate (505), and the second connecting plate (507) is detachably fixedly connected to the first fixing plate (505).

3. The sand settling tube of the cyclone according to claim 2, characterized in that: Two third connecting plates (508) are arranged on the second transmission rod (503) at intervals along the length direction, and the first transmission rod (502) is arranged between the two third connecting plates (508) and is rotatably connected to the two third connecting plates (508).

4. The sand settling tube of the cyclone according to claim 2, characterized in that: The second transmission rod (503) is provided with a second fixing plate (509), and the second fixing plate (509) and the first fixing plate (505) are respectively arranged on both sides of the first transmission rod (502); the second fixing plate (509) is rotatably connected to the second transmission rod (503), and the bottom of the second fixing plate (509) is fixedly connected to the second fixing member (2).

5. The sand settling tube of the cyclone according to claim 2, characterized in that: The first fixing plate (505) is provided with a first connection hole (506), and the second connection plate (507) is detachably fixedly connected to the first connection hole (506); a plurality of second connection holes (7) are provided on the first fixing member (1) along a circumferential direction, and the tops of the plurality of connecting pipe sheets (3) are detachably fixedly connected to corresponding second connection holes (7), and the plurality of second connection holes (7) correspond to the first connection holes (506).

6. The sand settling tube of the cyclone according to claim 5, characterized in that: A connecting plate (8) is provided on the top of each of the plurality of connecting pipe sheets (3), and the connecting plate (8) is detachably fixedly connected to the second connecting hole (7).

7. The sand settling tube of the cyclone according to claim 5, characterized in that: The first connection hole (506) is an arc-shaped hole, and the second connection hole (7) is a linear hole.

8. The sand settling tube of the cyclone according to claim 1, characterized in that: A circular gasket is provided at the connection between the top of the connecting pipe sheet (3) and the first fixing member (1), and a rectangular gasket is provided at the abutment between two adjacent connecting pipe sheets (3).

9. The sand settling tube of the cyclone according to claim 1, characterized in that: At least two connecting pipe sheets (3) are provided, and the cross-sectional shape of the connecting pipe sheets (3) is an arc shape.

10. A cyclone, characterized in that: The sand settling tube of the cyclone as claimed in any one of claims 1 to 9 is adopted, wherein the bottom of the cone of the cyclone (9) is connected to the first fixing member (2), and the inner cavity of the cyclone (9) is connected to the cylinder (4).

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