Wear-resistant mechanical inflatable flotation machine stirring shaft

Abstract

The utility model relates to the technical field of inflatable flotation machines, in particular to a wear-resistant mechanical stirring shaft of an inflatable flotation machine, which is arranged in the inflatable flotation machine, the inflatable flotation machine comprises a stirring shaft main body, a steady flow plate and an impeller, the steady flow plate and the impeller are coaxially arranged, and the stirring shaft main body penetrates through the steady flow plate and the impeller. A hexsteel is arranged on the outer side of the stirring shaft main body between the steady flow plate and the impeller in a surrounding manner, an anti-corrosion layer is arranged on the hexsteel, the anti-corrosion layer is arranged on the stirring shaft in a surrounding manner, and the hexsteel is arranged in the anti-corrosion layer. Through the arrangement of the hexsteel, the strength of the stirring shaft main body is improved, and the anti-corrosion layer is arranged on the hexsteel, so that the strength of the hexsteel and the stirring shaft main body can be further improved through the anti-corrosion layer, and under the action of the anti-corrosion layer, the anti-corrosion performance of the stirring shaft main body is improved. The conditions of fracture, deformation, eccentricity and the like caused by insufficient strength frequently occurring at the joint of the stirring shaft main body and the impeller of an existing inflatable flotation machine due to dilute acid corrosion, ore pulp scouring, accumulated ore grinding and the like can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of air-filled flotation machines, in particular to a wear-resistant mechanical air-filled flotation machine stirring shaft. Background Art

[0002] In recent years, due to the increasing market demand for sulfur concentrate with a grade of more than 48%, Yunfu Pyrite has upgraded and transformed the flotation series of the beneficiation line to produce high-quality sulfur concentrate with a grade of more than 48%. The flotation equipment uses a shallow trough overflow flotation machine with higher processing efficiency. Through the rotation of the impeller, the added air is dispersed and fully mixed with the inhaled slurry to form mineralized bubbles, separate the useful minerals, and obtain the required sulfur concentrate minerals.

[0003] However, during use, since the sulfur concentrate slurry is weakly acidic and highly corrosive, and the large-particle suspended slurry causes great wear on the equipment, especially in the gap between the flow stabilizer (stator) and the impeller, the space is narrow, and the deposited slurry particles grind the main shaft for a long time. When the flotation machine is working, the shaft is subjected to a large torque, so the connection between the main shaft and the impeller will frequently suffer from insufficient strength, breakage, deformation and eccentricity, resulting in the flotation machine being unable to work normally, high maintenance intensity, poor production continuity, and a great impact on production.

[0004] The currently used pneumatic flotation machines frequently suffer from insufficient strength and breakage, deformation and eccentricity at the connection between the main shaft and the impeller due to dilute acid corrosion, slurry scouring, ore accumulation and grinding, etc., which causes the flotation machine to be unable to work normally, requires high maintenance intensity, and has poor production continuity, causing a great impact on production. Utility Model Content

[0005] The invention purpose of the utility model is to solve the problems existing in the prior art and provide a wear-resistant mechanical pneumatic flotation machine stirring shaft.

[0006] In order to solve the problems existing in the prior art, the utility model adopts the following technical solutions:

[0007] A wear-resistant mechanical inflatable flotation machine stirring shaft is arranged in the inflatable flotation machine. The inflatable flotation machine includes a stirring shaft body, a flow stabilizer and an impeller. The flow stabilizer and the impeller are coaxially arranged. The stirring shaft body passes through the flow stabilizer and the impeller. A tortoise shell net is arranged around the outer side of the stirring shaft body between the flow stabilizer and the impeller. An anti-corrosion layer is arranged on the tortoise shell net. The anti-corrosion layer is arranged around the stirring shaft, and the tortoise shell net is arranged inside the anti-corrosion layer.

[0008] As an improvement of the technical solution of the stirring shaft of the wear-resistant mechanical inflatable flotation machine of the utility model, the distance between the outer side of the anti-corrosion layer and the outer side of the tortoise shell net is 3-7 mm.

[0009] As an improvement of the technical solution of the agitator shaft of the wear-resistant mechanical pneumatic flotation machine of the utility model, the anti-corrosion layer is a corrosion-resistant large-particle ceramic high-strength wear-resistant material layer.

[0010] As an improvement of the technical solution of the agitator shaft of the wear-resistant mechanical pneumatic flotation machine of the utility model, the pneumatic flotation machine comprises a coaxially arranged central casing, the flow stabilizing plate, the impeller, the guide pipe and the false bottom;

[0011] The bottom of the central casing is provided with the flow stabilizing plate and the impeller in sequence, and the bottom of the guide tube is provided with the false bottom; the stirring shaft body passes through the central casing, the flow stabilizing plate and the impeller, extends into the guide tube, and extends to the false bottom.

[0012] As an improvement on the technical solution of the agitator shaft of the wear-resistant mechanical inflatable flotation machine of the utility model, the agitator shaft body between the lower part of the flow stabilizer plate and the impeller is the lower part of the agitator shaft body, and the tortoise shell net and the anti-corrosion layer are arranged around the outside of the agitator shaft body.

[0013] As an improvement of the technical solution of the agitator shaft of the wear-resistant mechanical pneumatic flotation machine of the utility model, the tortoise shell mesh spot welding is arranged on the agitator shaft body.

[0014] As an improvement of the technical solution of the agitator shaft of the wear-resistant mechanical pneumatic flotation machine of the utility model, a wear-resistant layer is provided at the connection between the bottom of the flow stabilizing plate and the agitator shaft body.

[0015] As an improvement of the technical solution of the agitator shaft of the wear-resistant mechanical pneumatic flotation machine of the utility model, the wear-resistant layer is a slurry layer of large-grained ceramic high-strength wear-resistant material.

[0016] As an improvement of the technical solution of the agitator shaft of the wear-resistant mechanical pneumatic flotation machine of the utility model, the thickness of the wear-resistant layer is 3-7 mm.

[0017] Beneficial effects of the utility model:

[0018] The utility model has a simple structure, is easy to manufacture and install, and has strong practicality. It forms an anti-corrosion layer and / or a wear-resistant layer at the part where the stirring shaft of the pneumatic flotation machine is prone to fracture and deformation, thereby avoiding fracture and deformation caused by reduced strength due to corrosion, scouring, grinding, etc., greatly improving its service life, and the average service life can be extended by more than 5 times, achieving the purpose of efficient production. At the same time, it ensures the normal and stable production of the pneumatic flotation machine, extends the service life of the flotation machine stirring main shaft, thereby improving the ore dressing efficiency and reducing the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of an air-filled flotation machine;

[0020] Figure 2 It is a structural schematic diagram of the utility model.

[0021] Explanation of the reference numerals: 1 - stirring shaft body; 2 - flow stabilizing plate; 3 - impeller; 4 - tortoise shell net; 7 - center casing; 8 - flow guide pipe; 9 - false bottom. DETAILED DESCRIPTION

[0022] In order to make the invention purpose, technical scheme and beneficial effects of the utility model clearer, the technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, rather than all the embodiments.

[0023] like Figure 1 and Figure 2 As shown, a wear-resistant mechanical inflatable flotation machine stirring shaft is arranged in the inflatable flotation machine. The inflatable flotation machine includes a stirring shaft body, a flow stabilizer and an impeller. The flow stabilizer and the impeller are coaxially arranged. The stirring shaft body passes through the flow stabilizer and the impeller. A tortoise shell net is arranged around the outer side of the stirring shaft body between the flow stabilizer and the impeller. An anti-corrosion layer is arranged on the tortoise shell net. The anti-corrosion layer is arranged around the stirring shaft, and the tortoise shell net is arranged inside the anti-corrosion layer.

[0024] In the prior art, the section of the stirring shaft between the impeller and the flow stabilizer is most susceptible to fracture. Moreover, the existing aerated flotation machines frequently suffer from insufficient strength and fracture, deformation and eccentricity at the connection between the main shaft and the impeller due to dilute acid corrosion, slurry scouring, ore accumulation and grinding, etc., which causes the flotation machine to be unable to work normally, requires high maintenance intensity, and has poor production continuity, causing a great impact on production.

[0025] Based on this, in the utility model, since the stirring shaft body 1 passes through the flow stabilizer 2 and the impeller 3, a tortoise shell net 4 is arranged around the outer side of the stirring shaft body 1 between the flow stabilizer 2 and the impeller 3. The strength of the stirring shaft body 1 is increased by the arrangement of the tortoise shell net 4, and an anti-corrosion layer is arranged on the tortoise shell net 4. The anti-corrosion layer can further increase the strength of the tortoise shell net 4 and the stirring shaft body 1. Secondly, under the action of the anti-corrosion layer, the existing inflatable flotation machine can avoid the frequent occurrence of insufficient strength and breakage, deformation and eccentricity at the connection between the stirring shaft body 1 and the impeller 3 due to dilute acid corrosion, slurry scouring, ore accumulation grinding, etc., which solves the problem in the prior art that the flotation machine cannot work normally, the maintenance intensity is high, the production continuity is poor, and the production is greatly affected.

[0026] In some embodiments of the present invention, the distance between the outer side of the anti-corrosion layer and the outer side of the tortoise shell mesh 4 is 3-7 mm. Furthermore, the anti-corrosion layer is a corrosion-resistant large-grain ceramic high-strength wear-resistant material layer.

[0027] In detail, in the present invention, the tortoise shell mesh 4 is arranged around the stirring shaft body 1, and an anti-corrosion layer is arranged on the tortoise shell mesh 4. The anti-corrosion layer can be an anti-corrosion layer with an anti-corrosion function in the prior art. In the present invention, the anti-corrosion layer is preferably an anti-corrosion large-grain ceramic high-strength wear-resistant material layer, which not only has an anti-corrosion effect, but also because the distance between the outer side of the anti-corrosion layer and the outer side of the tortoise shell mesh 4 is 3-7mm, and the tortoise shell mesh 4 is arranged in the anti-corrosion layer, that is, the thickness of the anti-corrosion layer is greater than the thickness of the tortoise shell mesh 4, the anti-corrosion layer and the tortoise shell mesh 4 together increase the strength of the stirring shaft body 1, and further avoid the occurrence of the fracture of the stirring shaft body 1.

[0028] In addition, in the utility model, since the anti-corrosion layer is preferably an anti-corrosion large-grained ceramic high-strength wear-resistant material layer, when making the anti-corrosion layer, the anti-corrosion large-grained ceramic high-strength wear-resistant material can be configured into a slurry, which is filled, smeared, and compacted around the 4 layers of tortoise shell mesh. The thickness is 3-7mm higher than the end face of the tortoise shell mesh 4 to ensure that the coating surface is smooth to avoid affecting the rotation of the stirring shaft body 1.

[0029] In some embodiments of the utility model, the inflatable flotation machine includes a coaxially arranged central casing 7, a flow stabilizer 2, an impeller 3, a flow guide pipe 8 and a false bottom 9;

[0030] The bottom of the central casing 7 is provided with a flow stabilizing plate 2 and an impeller 3 in sequence, and the bottom of the guide tube 8 is provided with a false bottom 9; the stirring shaft body 1 passes through the central casing 7, the flow stabilizing plate 2 and the impeller 3, and extends into the guide tube 8 and extends to the false bottom 9.

[0031] In some embodiments of the present invention, the stirring shaft body 1 between the lower part of the flow stabilizer 2 and the impeller 3 is the lower part of the stirring shaft body 1, and the tortoise shell net 4 and the anti-corrosion layer are arranged around the outer side of the stirring shaft body 1.

[0032] In detail, since the stirring shaft body 1 passes through the central casing 7, the flow stabilizer 2 and the impeller 3, and extends into the guide pipe 8, and extends to the false bottom 9, the flow stabilizer 2 and the impeller 3 are arranged below the central casing 7, that is, the stirring shaft body 1 provided with the tortoise shell net 4 and the anti-corrosion layer is arranged between the flow stabilizer 2 and the impeller 3, that is, the stirring shaft body 1 provided with the tortoise shell net 4 and the anti-corrosion layer is the stirring shaft body 1 at the lower part of the stirring shaft of the inflatable flotation machine.

[0033] Further, the tortoise shell mesh 4 is spot welded on the stirring shaft body 1. The tortoise shell mesh 4 can be set on the stirring shaft body 1 by a conventional fixing method, preferably a spot welding connection fixing method, which can avoid the tortoise shell mesh 4 from being separated from the stirring shaft body 1. Spot welding is suitable for welding various thin metal materials, and spot welding can produce high-quality welds with excellent strength and air tightness, which can meet the needs of high-quality welding.

[0034] As an example of the present embodiment, a circle of 1.0*10*20 mm stainless steel tortoise shell mesh 4 is spot welded and fixed on the main shaft between 10 mm below the flow stabilizer 2 and the impeller 3, and is firmly fixed.

[0035] In some embodiments of the present invention, a wear-resistant layer is provided at the connection between the bottom of the flow stabilizer plate 2 and the stirring shaft body 1. Preferably, the wear-resistant layer is a slurry layer of large-grained ceramic high-strength wear-resistant material. More preferably, the thickness of the wear-resistant layer is 3-7 mm.

[0036] In detail, a 3-7mm thick large-particle ceramic high-strength wear-resistant slurry is coated on the 10mm section between the lower part of the flow stabilizer 2 and the tortoise shell net 4 to ensure that a layer of anti-corrosion and wear-resistant protective cover is formed on the flotation machine stirring shaft that is prone to fracture and deformation, avoiding fracture and deformation due to reduced strength caused by corrosion, scouring, grinding, etc., greatly improving its service life and achieving the purpose of efficient production.

[0037] Furthermore, the transition section where the wear-resistant layer contacts the tortoise shell mesh 4 is coated in a conical shape, thereby ensuring a uniform coating effect.

[0038] As an installation and use method of the utility model, the following steps are included:

[0039] 1. Clean the main shaft, flow stabilizer 2, impeller 3 and other parts of the flotation machine. Figure 1 and attached Figure 2 Line assembly;

[0040] 2. Spot weld a circle of 1.0*10*20mm stainless steel tortoise shell mesh 4 on the main shaft between 10mm below the flow stabilizer 2 and the impeller 3, and fix it firmly;

[0041] 3. Prepare the anti-corrosion large-grain ceramic high-strength wear-resistant material into slurry, fill, apply and compact it around the 4 layers of tortoise shell mesh. The thickness should be 3-7mm higher than the 4 end faces of the tortoise shell mesh to ensure the coating surface is smooth;

[0042] 4. Apply 3-7mm thick large-particle ceramic high-strength wear-resistant slurry to the 10mm section between the lower part of the flow stabilizer 2 and the tortoise shell mesh 4, and use conical coating for the transition section in contact with the tortoise shell mesh 4;

[0043] 5. After production is completed, let it dry naturally and then you can use it normally.

[0044] Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of the utility model.

Claims

1. A wear-resistant mechanical aerated flotation machine stirring shaft, arranged in an aerated flotation machine, characterized in that: The inflatable flotation machine includes a stirring shaft body, a flow stabilizing plate and an impeller, wherein the flow stabilizing plate and the impeller are coaxially arranged, and the stirring shaft body passes through the flow stabilizing plate and the impeller. A tortoise shell net is arranged around the outer side of the stirring shaft body between the flow stabilizing plate and the impeller, and an anti-corrosion layer is arranged on the tortoise shell net. The anti-corrosion layer is arranged around the stirring shaft, and the tortoise shell net is arranged inside the anti-corrosion layer.

2. The wear-resistant mechanical aerated flotation machine stirring shaft according to claim 1, characterized in that: The distance between the outer side of the anti-corrosion layer and the outer side of the tortoise shell mesh is 3-7 mm.

3. The wear-resistant mechanical aerated flotation machine stirring shaft according to claim 1, characterized in that: The anti-corrosion layer is a corrosion-resistant large-grain ceramic high-strength wear-resistant material layer.

4. The wear-resistant mechanical aerated flotation machine stirring shaft according to claim 1, characterized in that: The inflatable flotation machine comprises a coaxially arranged central casing, the flow stabilizing plate, the impeller, a flow guide pipe and a false bottom; The bottom of the central casing is provided with the flow stabilizing plate and the impeller in sequence, and the bottom of the guide tube is provided with the false bottom; the stirring shaft body passes through the central casing, the flow stabilizing plate and the impeller, extends into the guide tube, and extends to the false bottom.

5. The wear-resistant mechanical aerated flotation machine stirring shaft according to claim 1, characterized in that: The stirring shaft body between the lower part of the flow stabilizing plate and the impeller is the lower part of the stirring shaft body, and the tortoise shell net and the anti-corrosion layer are arranged around the outer side of the stirring shaft body.

6. The wear-resistant mechanical aerated flotation machine stirring shaft according to claim 5, characterized in that: The tortoise shell spot welding is arranged on the stirring shaft body.

7. The wear-resistant mechanical aerated flotation machine stirring shaft according to claim 4, characterized in that: A wear-resistant layer is provided at the connection between the bottom of the flow stabilizing plate and the stirring shaft body.

8. The wear-resistant mechanical aerated flotation machine stirring shaft according to claim 7, characterized in that: The wear-resistant layer is a large-grain ceramic high-strength wear-resistant material slurry layer.

9. The wear-resistant mechanical aerated flotation machine stirring shaft according to claim 7, characterized in that: The thickness of the wear-resistant layer is 3-7 mm.

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