Connecting structure of pulp suction pipe of beneficiation flotation machine

Abstract

The connecting structure comprises a flotation machine main shaft, the upper end of the flotation machine main shaft is connected with a connecting pipe, the upper end of the connecting pipe is connected with a main shaft connecting rod, a slurry suction opening is formed in one side of the connecting pipe, a slurry suction pipe is inserted into the slurry suction opening in a penetrating mode, and a pipe sealing connecting piece is inserted between the slurry suction opening and the slurry suction pipe in a penetrating mode. Iron sheets are welded to the two sides of the pipe seal connecting piece, and buffering rubber sheets are arranged on the iron sheets. According to the connecting structure of the pulp suction pipe of the beneficiation flotation machine, a gap between the pulp suction opening of the connecting pipe and the pulp suction pipe is locked and sealed through the pipe sealing connecting piece, so that the problem that the suction force is low due to the gap between the pulp suction opening and the pulp suction pipe is solved, after the pulp suction opening and the pulp suction pipe are sealed, foam returns obviously smoothly, the phenomenon of overturning is reduced, and the service life of the pulp suction pipe is prolonged. And the problems of concentration reduction, large circulation amount, fine tail runaway and the like caused by increasing the foam flow rate by using a large amount of flushing water are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of ore dressing flotation machines, in particular to a connection structure of a slurry suction pipe of an ore dressing flotation machine. Background Art

[0002] In the molybdenum ore beneficiation process, the molybdenum fine sweeping operation uses a 20 cubic mechanical stirring flotation machine for beneficiation. The fine sweeping tailings are sucked into the next operation through the flotation machine, and the foam returns to the previous operation. During use, it was found that there was a phenomenon of flower turning in the fine sweeping process. At the same time, the foam fluidity of the fine sweeping second and fine sweeping third foam tanks was not good, and a large amount of flushing water was required to improve it, which affected the scraping amount. The fine sweeping operation cycle volume changed greatly, causing the fine tailings to run high.

[0003] By stopping the machine to inspect the flotation machine, it was found that there was a problem of excessive gap between the slurry suction pipe of the 20 cubic flotation machine and the main shaft of the flotation machine. The foam of the next operation was self-sucked into the first tank of the previous operation through the slurry suction pipe of the flotation machine. The slurry suction effect was not good, resulting in insufficient suction when the foam of the next operation returned, requiring a large amount of flushing water, resulting in low concentration and poor process.

[0004] And because the pipe is cast iron and cannot be fixed by welding, the cotton yarn, packing, etc. previously plugged will be washed away by the slurry. Therefore, a connection structure of the slurry suction pipe of the ore dressing flotation machine is urgently needed to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a connection structure of a slurry suction pipe of a mineral processing flotation machine to solve the problem of too large a gap between the slurry suction pipe of the flotation machine and the main shaft of the flotation machine proposed in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a connection structure of a slurry suction pipe of a mineral processing flotation machine, comprising a main shaft of a flotation machine, a connecting pipe connected to the upper end of the main shaft of the flotation machine, a main shaft connecting rod connected to the upper end of the connecting pipe, a slurry suction port opened on one side of the connecting pipe, a slurry suction pipe inserted in the slurry suction port, a pipe seal connector inserted between the slurry suction port and the slurry suction pipe, iron sheets welded on both sides of the pipe seal connector, and a buffer rubber sheet is provided on the iron sheet;

[0007] The pipe seal connector is provided with an inner sealing rubber ring on one side close to the slurry suction port, a threaded hole is provided on the inner sealing rubber ring, a through hole is provided on the pipe seal connector at a position corresponding to the threaded hole of the inner sealing rubber ring, and a first fixing flat head screw is inserted into the through hole;

[0008] An outer sealing rubber ring is provided inside the pipe seal connector near the slurry suction pipe, threaded holes are provided in the middle of both sides of the outer sealing rubber ring, and through holes are provided on both sides of the pipe seal connector corresponding to the threaded holes of the outer sealing rubber ring, and second fixing flat head screws are inserted into the through holes;

[0009] The pipe sealing connector and the outer sealing rubber ring are both provided with an annular groove, in which the first clamping iron ring and the second clamping iron ring are respectively sleeved, and the first clamping iron ring and the second clamping iron ring are both spirally provided with locking bolts.

[0010] Preferably, the slurry suction port forms an extrusion sealing structure through an inner sealing rubber ring and a pipe sealing connector, and the slurry suction pipe forms an extrusion sealing structure through an outer sealing rubber ring and a pipe sealing connector.

[0011] Preferably, the pipe seal connector is fixed to the grout suction pipe by means of a locking bolt in cooperation with the first clamp iron ring.

[0012] Preferably, the outer sealing rubber ring cooperates with the second clamp iron ring and the grout suction pipe to form a locking structure through a locking bolt.

[0013] Preferably, the outer sealing rubber ring and the inner sealing rubber ring are respectively locked and fixedly connected to the pipe sealing connector by a second fixing flat head screw and a first fixing flat head screw.

[0014] Compared with the prior art, the utility model has the following beneficial effects: the connection structure of the slurry suction pipe of the mineral processing flotation machine locks and seals the gap between the slurry suction port of the connecting pipe and the slurry suction pipe through the pipe sealing connector, thereby avoiding the gap between the slurry suction port and the slurry suction pipe, which leads to the problem of low suction, and after the slurry suction port and the slurry suction pipe are sealed, the foam return is obviously unobstructed, the frothing phenomenon is also alleviated, and the use of a large amount of flushing water to increase the foam flow rate, which causes problems such as reduced concentration, large circulation volume, and high fine tail running, is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the front connection structure of a connection structure of a slurry suction pipe of a mineral processing flotation machine according to the utility model;

[0016] Figure 2 This is a schematic diagram of the side connection structure of a connection structure of a slurry suction pipe of a mineral processing flotation machine according to the utility model;

[0017] Figure 3 This is a front structural schematic diagram of a pipe seal connector of a connection structure of a slurry suction pipe of a mineral processing flotation machine according to the utility model;

[0018] Figure 4 It is a cross-sectional schematic diagram of the connection between the slurry suction port and the slurry suction pipe of a connection structure of a slurry suction pipe of a mineral processing flotation machine according to the utility model;

[0019] Figure 5 The utility model is a connection structure of a slurry suction pipe of a mineral processing flotation machine Figure 4 Enlarged structural diagram at A in the middle.

[0020] In the figure: 1, flotation machine main shaft, 2, connecting pipe, 3, slurry suction port, 4, main shaft connecting rod, 5, slurry suction pipe, 6, pipe seal connector, 7, iron sheet, 8, buffer rubber sheet, 9, outer sealing rubber ring, 10, inner sealing rubber ring, 11, first fixing flat head screw, 12, second fixing flat head screw, 13, first clamping iron ring, 14, second clamping iron ring, 15, locking bolt. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-5 The utility model provides a technical solution: a connection structure of a slurry suction pipe of a mineral processing flotation machine, comprising a flotation machine main shaft 1, a connecting pipe 2 is connected to the upper end of the flotation machine main shaft 1, a main shaft connecting rod 4 is connected to the upper end of the connecting pipe 2, a slurry suction port 3 is opened on one side of the connecting pipe 2, a slurry suction pipe 5 is inserted in the slurry suction port 3, a pipe seal connector 6 is inserted between the slurry suction port 3 and the slurry suction pipe 5, iron sheets 7 are welded on both sides of the pipe seal connector 6, and a buffer rubber sheet 8 is provided on the iron sheet 7.

[0023] In one embodiment, the iron sheets 7 welded on both sides of the pipe seal connector 6 are convenient for hammering with a tool when the pipe seal connector 6 is installed, so as to better seal the pipe seal connector 6 with the slurry suction port 3 .

[0024] An inner sealing rubber ring 10 is provided on the side of the pipe sealing connector 6 close to the slurry suction port 3, and a threaded hole is opened on the inner sealing rubber ring 10. A through hole is opened on the pipe sealing connector 6 corresponding to the threaded hole of the inner sealing rubber ring 10, and a first fixing flat head screw 11 is inserted into the through hole.

[0025] An outer sealing rubber ring 9 is provided inside the pipe sealing connector 6 near the slurry suction pipe 5, and threaded holes are provided in the middle of both sides of the outer sealing rubber ring 9. Through holes are provided on both sides of the pipe sealing connector 6 corresponding to the threaded holes of the outer sealing rubber ring 9, and second fixing flat head screws 12 are inserted into the through holes.

[0026] Both the pipe sealing connector 6 and the outer sealing rubber ring 9 are provided with an annular groove, in which the first clamping iron ring 13 and the second clamping iron ring 14 are respectively sleeved, and the first clamping iron ring 13 and the second clamping iron ring 14 are both screwed with locking bolts 15. It should be additionally explained that: the first clamping iron ring 13 and the second clamping iron ring 14 have the same structure, and the structure of the first clamping iron ring 13 and the second clamping iron ring 14 is the same as the American throat clamp clamp of the gas tank ventilation duct, which is the prior art and will not be elaborated here.

[0027] Furthermore, the slurry suction port 3 forms an extrusion sealing structure with the pipe sealing connector 6 through the inner sealing rubber ring 10 , and the slurry suction pipe 5 forms an extrusion sealing structure with the pipe sealing connector 6 through the outer sealing rubber ring 9 .

[0028] In one embodiment, when the slurry suction pipe 5 is connected to the slurry suction port 3, the slurry suction pipe 5 is connected to the slurry suction port 3. Figure 4 First, insert the pipe seal connector 6 from the left end of the slurry suction pipe 5, so that the pipe seal connector 6 is sleeved on the slurry suction pipe 5, and then insert the slurry suction pipe 5 together with the pipe seal connector 6 into the slurry suction port 3 from the right end, so that the inner sealing rubber ring 10 of the pipe seal connector 6 is precisely fitted with the inner wall of the slurry suction port 3 to perform sealing.

[0029] Furthermore, the pipe seal connector 6 is fixed to the grout suction pipe 5 by means of a locking bolt 15 in cooperation with the first clamp iron ring 13 .

[0030] In one embodiment, after the pipe seal connector 6, the slurry suction pipe 5 and the slurry suction port 3 are tightly connected, the locking bolt 15 is screwed with a screwdriver so that the tooth groove of the bolt 15 contracts the first clamping iron ring 13 during rotation, thereby fastening the pipe seal connector 6 to the slurry suction pipe 5 through the first clamping iron ring 13.

[0031] Furthermore, the outer sealing rubber ring 9 cooperates with the second clamp iron ring 14 and the grout suction pipe 5 to form a locking structure through the locking bolt 15.

[0032] In one embodiment, after the pipe sealing connector 6 is locked and fixed by the first clamp iron ring 13, the second clamp iron ring 14 on the outer sealing rubber ring 9 is locked and fixed by a screwdriver, and the pipe sealing connector 6 and the connecting pipe 2 can be transversely tightened and connected at the upper and lower ends of the pipe sealing connector 6 by a group of clamp iron rings respectively as needed. Supplementary explanation: Two groups of transverse clamp iron rings are not shown in the accompanying drawings, and the transverse clamp iron rings are compatible with the structure of the first clamp iron ring 13, which will not be described in detail here. The use of two transverse groups of clamp iron rings can increase the connection firmness between the pipe sealing connector 6 and the connecting pipe 2, and further improve the sealing stability of the pipe sealing connector 6.

[0033] Furthermore, the outer sealing rubber ring 9 and the inner sealing rubber ring 10 are respectively locked and fixedly connected with the pipe sealing connector 6 by means of a second fixing flat head screw 12 and a first fixing flat head screw 11 .

[0034] In one embodiment, the outer sealing rubber ring 9 and the inner sealing rubber ring 10 are connected by means of detachable threads and flat head screws. When the outer sealing rubber ring 9 and the inner sealing rubber ring 10 are worn, it is convenient to disassemble and replace the outer sealing rubber ring 9 and the inner sealing rubber ring 10.

[0035] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A connection structure for a slurry suction pipe of a mineral processing flotation machine, comprising a flotation machine main shaft (1), the upper end of the flotation machine main shaft (1) is connected to a connection pipe (2), the upper end of the connection pipe (2) is connected to a main shaft connection rod (4), a slurry suction port (3) is opened on one side of the connection pipe (2), a slurry suction pipe (5) is inserted into the slurry suction port (3), and the characteristics are: A pipe seal connector (6) is inserted between the slurry suction port (3) and the slurry suction pipe (5), iron sheets (7) are welded on both sides of the pipe seal connector (6), and a buffer rubber sheet (8) is provided on the iron sheet (7); The pipe seal connector (6) is provided with an inner sealing rubber ring (10) on one side close to the slurry suction port (3), the inner sealing rubber ring (10) is provided with a threaded hole, the pipe seal connector (6) is provided with a through hole at a position corresponding to the threaded hole of the inner sealing rubber ring (10), and a first fixing flat head screw (11) is inserted into the through hole; An outer sealing rubber ring (9) is provided inside the pipe seal connector (6) on the side close to the slurry suction pipe (5), threaded holes are provided in the middle of both sides of the outer sealing rubber ring (9), and through holes are provided on both sides of the pipe seal connector (6) corresponding to the threaded holes of the outer sealing rubber ring (9), and second fixing flat head screws (12) are inserted into the through holes; The pipe sealing connector (6) and the outer sealing rubber ring (9) are both provided with an annular groove, in which a first clamping iron ring (13) and a second clamping iron ring (14) are respectively sleeved, and locking bolts (15) are screwed on the first clamping iron ring (13) and the second clamping iron ring (14).

2. The connection structure of the slurry suction pipe of the ore dressing flotation machine according to claim 1 is characterized in that: The slurry suction port (3) forms an extrusion sealing structure with the pipe sealing connector (6) through the inner sealing rubber ring (10), and the slurry suction pipe (5) forms an extrusion sealing structure with the pipe sealing connector (6) through the outer sealing rubber ring (9).

3. The connection structure of the slurry suction pipe of the ore dressing flotation machine according to claim 1 is characterized in that: The pipe seal connector (6) is fixed to the grout suction pipe (5) by means of a locking bolt (15) in cooperation with the first clamp iron ring (13).

4. The connection structure of the slurry suction pipe of the ore dressing flotation machine according to claim 1 is characterized in that: The outer sealing rubber ring (9) cooperates with the second clamping iron ring (14) and the grout suction pipe (5) to form a locking structure through a locking bolt (15).

5. The connection structure of the slurry suction pipe of the ore dressing flotation machine according to claim 1 is characterized in that: The outer sealing rubber ring (9) and the inner sealing rubber ring (10) are respectively locked and fixedly connected to the pipe sealing connector (6) via a second fixing flat-head screw (12) and a first fixing flat-head screw (11).

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