Rapid switching device for ore pulp conveying pipeline

Abstract

The utility model belongs to the technical field of preparation equipment, and particularly discloses a quick switching device for ore pulp conveying pipelines. A slurry outlet hole of a slag separation machine of the device is communicated with a stirring tank through a slag separation pipe; a switching box of the switching mechanism is a hollow box, a slurry outlet I is formed in the bottom of the switching box, a slurry outlet II is formed in the middle of the side wall of the switching box, a spherical plug is arranged above the slurry outlet I, and the top of the spherical plug is connected with the lower end of a rope chain. A lifting unit is arranged on the top of the switching box and connected with the upper end of the rope chain. The slurry outlet II is communicated with the slurry inlet of the slag separator through a pipeline, and the slurry outlet of the cyclone is communicated with the slurry inlet of the switching box through a pipeline. According to the utility model, the switching mechanism is arranged, the spherical plug controlled by the lifting unit is used for replacing a traditional valve, and the ore pulp selection pipeline can be directly communicated with the stirring tank to facilitate maintenance of the slag separator, so that the switching efficiency of the ore pulp conveying pipeline can be improved, the manpower consumption and the overall cost are reduced, and meanwhile, the safety and environmental protection risks are reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of ore dressing equipment, and specifically relates to a quick switching device for a slurry conveying pipeline with simple structure, high switching efficiency, low labor intensity and cost, and safety and reliability. Background Art

[0002] Slurry refers to a liquid mixture formed by adding water and other auxiliary materials to solid raw materials such as ores and mineral soils in order to extract target elements in industrial production. In the metallurgical mining industry, most of the mining, processing, and transportation of slurry are carried out from the crushing of raw ores to grinding and classification and then to selection, and finally concentrate is produced. Before the selection process such as magnetic separation and flotation and the pipeline transportation process, the slurry needs to be ground and classified first, and can only proceed to the next step after meeting the predetermined requirements. However, the slurry after grinding and classification often contains impurities such as plastics and paper shells dropped when the equipment is damaged and auxiliary materials are added, as well as large particles of ore mixed in the previous step. If it is not filtered, it may cause blockage in the next step of magnetic separation and flotation, or even damage to the equipment, and cause blockage in the slurry pipeline transportation.

[0003] At present, after the pulp is classified, a slag separator is generally set up to filter out impurities in the pulp. However, after a period of use, if the slag separator is not cleaned in time or the debris in the pulp temporarily accumulates, it is easy to cause the slag separator to be blocked, resulting in pulp interruption and affecting the normal operation of upstream and downstream processes. In addition, in the mineral processing production process, it is often necessary to flexibly choose to filter the pulp through a slag separator or directly supply the pulp without filtering according to changes in the properties of the ore, upstream and downstream production conditions, etc. Figure 1 As shown, generally, a parallel direct supply pipeline is set on one side of the slag separator, and conventional valves are set on the pipeline input to the slag separator and the direct supply pipeline respectively, so as to switch between the slurry delivery pipelines to adjust the process. However, since the slurry contains a large amount of mineral particles, it is easy to cause rapid wear of the valves, which increases the cost of replacement and maintenance. In addition, the adjustment of conventional valves is not only time-consuming and labor-intensive, but also prone to leakage, which poses a greater safety and environmental risk.

[0004] Therefore, it is particularly important for the metallurgical mining industry to study and produce a quick switching device for slurry conveying pipelines with simple structure, high switching efficiency, low labor intensity and cost, and safe and reliable. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a quick switching device for a slurry conveying pipeline which has the advantages of simple structure, high switching efficiency, low labor intensity and cost, and safety and reliability.

[0006] The utility model is realized as follows: it comprises a cyclone, a slag separator, a stirring tank, a slag separator pipe and a straight pipe, wherein the slurry outlet hole of the slag separator is connected with the stirring tank through the slag separator pipe;

[0007] It also includes a switching mechanism, which includes a switching box, a spherical plug, a rope chain, and a pulling unit. The switching box is a hollow box with a slurry outlet hole I at the bottom and a slurry outlet hole II in the middle of the side wall. The spherical plug is arranged above the slurry outlet hole I in the switching box, and the top of the spherical plug is connected to the lower end of the rope chain. The pulling unit is arranged at the top of the switching box and connected to the upper end of the rope chain. The slurry outlet hole I is connected to the stirring tank through a straight pipe, the slurry outlet hole II is connected to the slurry inlet of the slag separator through a pipeline, and the slurry outlet hole of the cyclone is connected to the slurry inlet of the switching box through a pipeline.

[0008] Furthermore, the spherical plug is a sphere or a hemispherical structure at the bottom, the switching box is a conical structure, the slurry outlet hole I is arranged at the bottom of the conical structure of the switching box, or the slurry outlet hole I is a conical mouth, and the bottom diameter of the switching box and the conical mouth of the slurry outlet hole I is smaller than the diameter of the sphere or hemispherical body of the spherical plug, and the top diameter is larger than the diameter of the sphere or hemispherical body of the spherical plug.

[0009] Furthermore, when the slurry outlet hole I is a conical opening, a guide tube coaxial with the slurry outlet hole I and extending upward is fixedly provided at the bottom of the switching box, and the inner diameter of the guide tube is not less than the top diameter of the slurry outlet hole I.

[0010] Furthermore, the top end of the guide tube is higher than the highest moving range of the spherical plug and lower than the lowest end of the slurry outlet hole II; or a plurality of through holes are arranged at height intervals on the upper edge of the side wall of the guide tube, and the top end of the guide tube is higher than the highest moving range of the spherical plug.

[0011] Furthermore, a plurality of reinforcing ribs are fixedly arranged at intervals on the side walls and / or the bottom wall inside the switching box, and a wear-resistant protective layer covering the reinforcing ribs is also arranged on the side walls and / or the bottom wall inside the switching box.

[0012] Furthermore, the lifting unit includes a bracket and an adjusting rod, the bracket is fixedly arranged on the top of the switching box, one side of the adjusting rod is hinged to the bracket and one end of the adjusting rod is connected to the upper end of the rope chain.

[0013] Furthermore, the adjusting rod forms a lever structure, the upper end of the rope chain is connected to the shorter side of the adjusting rod, and the lifting unit also includes a limiting rod fixedly connected to the bracket and arranged below the longer side of the adjusting rod or above the shorter side of the adjusting rod, and the limiting rod is perpendicular to the extension direction of the adjusting rod.

[0014] Furthermore, a flexibly connected hook is provided on the limit rod, and a hanging ring cooperating with the hook is fixedly provided on the adjusting rod, and when the hook is connected with the hanging ring, the spherical plug is separated from the pulp outlet hole I.

[0015] Beneficial effects of the utility model:

[0016] 1. The utility model sets a switching mechanism between the slurry outlet of the cyclone and the slag separator and the straight-through pipe, and sets a spherical plug controlled by a lifting unit in the switching box of the switching mechanism to replace the traditional valve, so that under normal conditions, the slurry outlet hole I at the bottom of the switching box can be blocked by the spherical plug, and when the slurry in the switching box reaches a certain liquid level, it enters the slag separator from the slurry outlet hole II on the side wall and then flows into the mixing tank; when the slag separator fails, the spherical plug can be lifted and separated from the slurry outlet hole I by the lifting unit on the top of the switching box, so that the slurry can directly enter the mixing tank from the slurry outlet hole I through the straight-through pipe, thereby realizing the isolation and maintenance of the slag separator. When the maintenance is completed, the lifting unit is released, and the spherical plug can automatically return to its original position through the suction of the slurry at the slurry outlet hole I. Therefore, it is not only safe and reliable as a substitute for traditional valves, but also has a higher switching efficiency than traditional valves for slurry conveying pipelines, and significantly reduces the labor intensity during switching.

[0017] 2. The utility model arranges a slurry outlet hole I at the bottom of the switching box, and arranges a spherical plug connected to a pulling unit through a rope chain in the switching box. Not only is the structure simple and the cost low, but also the wear of the spherical plug and its rope chain when the slurry is output through the straight pipe is less than that of the traditional valve. Moreover, when the slurry outlet hole I and the spherical plug are not tightly matched, there will be no leakage problem. Therefore, the overall ownership and use costs are low, and the safety and environmental risks are also reduced.

[0018] 3. The utility model further sets the bottom of the switching box as a conical structure or sets the slurry outlet hole I as a conical mouth, so as to remove the slurry sediment on the side of the slurry outlet hole I to reduce or even avoid the sediment affecting the tightness of the fit between the spherical plug and the slurry outlet hole I and improve the sealing performance, and can also automatically guide the spherical plug when it descends, thereby improving the reliability of the fit between the spherical plug and the slurry outlet hole I.

[0019] 4. In the lifting unit of the utility model, the adjusting rod forms a lever structure on the bracket, so that the spherical plug below can be lifted quickly and labor-savingly, effectively improving the switching efficiency and reducing the labor intensity during operation; further, a limit rod is fixedly arranged on the bracket to limit the adjusting rod, which can avoid the problem that the spherical plug is difficult to fall into the slurry outlet hole I after falling due to being lifted too high, thereby improving the reliability of the cooperation between the spherical plug and the slurry outlet hole I; in particular, a flexibly connected hook is arranged on the limit rod, and a hanging ring cooperating with the hook is fixedly arranged on the adjusting rod, so that the hook and the hanging ring can be connected to keep the spherical plug in a continuously detached state from the slurry outlet hole I, so that the slurry can be directly and continuously discharged through the straight pipe, avoiding the problem of high labor intensity and low reliability caused by the need for manpower to continuously maintain the lifting of the spherical plug during the maintenance of the slag separator.

[0020] In summary, the utility model has the characteristics of simple structure, high switching efficiency, low labor intensity and cost, and safety and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the prior art structure;

[0022] Figure 2 This is one of the schematic diagrams of the structure of the utility model;

[0023] Figure 3 This is the second schematic diagram of the structure of the utility model (the pulp outlet hole I is closed);

[0024] Figure 4 for Figure 3 Enlarged view of the switching mechanism (the pulp outlet hole I is open);

[0025] In the figure: 1-cyclone, 2-slag separator, 3-mixing tank, 4-slag separator, 5-switching mechanism, 51-switching box, 511-slurry outlet hole I, 512-slurry outlet hole II, 52-spherical plug, 53-rope chain, 54-pulling unit, 541-bracket, 542-adjusting rod, 543-limiting rod, 544-hook, 545-hanging ring, 55-guide pipe, 56-reinforcement rib, 57-wear-resistant protective layer, 6-straight pipe, 7-tee head, 8-valve. DETAILED DESCRIPTION

[0026] The present invention is further described below in conjunction with the accompanying drawings and embodiments, but the present invention is not limited in any way. Any changes or improvements made based on the teachings of the present invention belong to the protection scope of the present invention.

[0027] like Figure 2 , 3 As shown in FIG. 4 , the utility model comprises a cyclone 1, a slag separator 2, a stirring tank 3, a slag separator pipe 4, and a straight pipe 6. The slurry outlet of the slag separator 2 is connected to the stirring tank 3 through the slag separator pipe 4;

[0028] It also includes a switching mechanism 5, which includes a switching box 51, a spherical plug 52, a rope chain 53, and a pulling unit 54. The switching box 51 is a hollow box with a slurry outlet hole I 511 at the bottom and a slurry outlet hole II 512 in the middle of the side wall. The spherical plug 52 is arranged above the slurry outlet hole I 511 in the switching box 51, and the top of the spherical plug 52 is connected to the lower end of the rope chain 53. The pulling unit 54 is arranged at the top of the switching box 51 and connected to the upper end of the rope chain 53. The slurry outlet hole I 511 is connected to the stirring tank 3 through the straight pipe 6, and the slurry outlet hole II 512 is connected to the slurry inlet of the slag separator 2 through a pipeline. The slurry outlet hole of the cyclone 1 is connected to the slurry inlet of the switching box 51 through a pipeline.

[0029] The spherical plug 52 is a sphere or a hemispherical structure at the bottom, the bottom of the switching box 51 is a conical structure, the slurry outlet hole I511 is arranged at the bottom of the conical structure of the switching box 51, or the slurry outlet hole I511 is a conical mouth, the bottom diameter of the conical structure of the switching box 51 and the conical mouth of the slurry outlet hole I511 is smaller than the sphere or hemispherical diameter of the spherical plug 52, and the top diameter is larger than the sphere or hemispherical diameter of the spherical plug 52.

[0030] When the slurry outlet hole I511 is a tapered opening, a guide tube 55 coaxial with the slurry outlet hole I511 and extending upward is fixedly provided at the bottom of the switch box 51, and the inner diameter of the guide tube 55 is not less than the top diameter of the slurry outlet hole I511. The guide tube 55 can automatically guide the sinking spherical plug 52, thereby further improving the reliability of the cooperation between the spherical plug 52 and the slurry outlet hole I511.

[0031] The top end of the guide tube 55 is higher than the highest moving range of the spherical plug 52 and lower than the lowest end of the slurry outlet hole II 512; or a plurality of through holes are arranged at height intervals on the upper edge of the side wall of the guide tube 55, and the top end of the guide tube 55 is higher than the highest moving range of the spherical plug 52.

[0032] A plurality of reinforcing ribs 56 are fixedly arranged at intervals on the side walls and / or the bottom wall inside the switching box 51 . A wear-resistant protective layer 57 covering the reinforcing ribs 56 is also arranged on the side walls and / or the bottom wall inside the switching box 51 .

[0033] The lifting unit 54 includes a bracket 541 and an adjusting rod 542 . The bracket 541 is fixedly disposed on the top of the switching box 51 . One side of the adjusting rod 542 is hinged to the bracket 541 and one end of the adjusting rod 542 is connected to the upper end of the rope chain 53 .

[0034] The adjusting rod 542 forms a lever structure, the upper end of the rope chain 53 is connected to the shorter side of the adjusting rod 542, and the lifting unit 54 also includes a limiting rod 543 fixedly connected to the bracket 541 and arranged below the longer side of the adjusting rod 542 or above the shorter side of the adjusting rod 542, and the limiting rod 543 is perpendicular to the extension direction of the adjusting rod 542.

[0035] The limiting rod 543 is provided with a flexibly connected hook 544, and the adjusting rod 542 is fixedly provided with a hanging ring 545 that cooperates with the hook 544. When the hook 544 is connected to the hanging ring 545, the spherical plug 52 is separated from the pulp outlet hole I511.

[0036] The production and working process of this utility model:

[0037] like Figure 3 and 4 As shown, the production and connection process is as follows:

[0038] 1. According to the use requirements, a 1500×1500×2500mm uncovered switching box 51 is welded with steel plates, and irregularly distributed 8mm plain round steel bars are welded at intervals on the side walls inside the switching box 51 as reinforcement ribs 56, and then ST818 large-particle wear-resistant paint is used to evenly cover the side walls of the reinforcement ribs 56 to form a 10mm thick wear-resistant protective layer 57.

[0039] 2. A slurry outlet hole I511 is opened at the center of the bottom of the switching box 51 to connect to the straight pipe 6, and a guide pipe 55 is welded at the bottom of the switching box 51 to be coaxial with the slurry outlet hole I511 and extend upward. Then, a slurry outlet hole II512 is opened in the middle of the side wall of the switching box 51 to connect to the slag separator 2 through a pipeline, so that the top end of the guide pipe 55 is higher than the highest moving range of the spherical plug 52 and lower than the lowest end of the slurry outlet hole II512. Subsequently, a slurry inlet hole is opened on the upper part of the side wall of the switching box 51 to connect to the slurry outlet of the cyclone 1 through a pipeline.

[0040] 3. A bracket 541 connected to the side wall of the switching box 51 is welded or bolted at the top of the switching box 51 to serve as a fulcrum and positioning point for the adjusting rod 542. A limit rod 543 is then set below the longer side of the bracket 542, and a flexibly connected hook 544 is set on the limit rod 543, and a hanging ring 545 that cooperates with the hook 544 is fixedly set on the adjusting rod 542.

[0041] 4. Connect an iron chain (i.e., rope chain 53) to the shorter end of the adjusting rod 542, and connect the spherical plug 52 to the lower part of the iron chain to complete the manufacture and connection of the device.

[0042] like Figure 3 and 4As shown, during operation, if the slag separator 2 needs to be maintained, the longer side of the adjusting rod 542 is pressed, and the spherical plug 52 is lifted up to disengage from the slurry outlet hole Ⅰ511 through the iron chain (i.e., rope chain 53) connected to the shorter side of the adjusting rod 542. At this time, the slurry in the switching box 51 directly enters the mixing tank 3 from the slurry outlet hole Ⅰ511 at the bottom through the straight pipe 6, thereby realizing the isolation and maintenance of the slag separator 2; then the hook 544 provided on the limit rod 543 is connected to the hanging ring 545 on the adjusting rod 542, so that the spherical plug 52 remains in a continuously detached state from the slurry outlet hole Ⅰ511, avoiding the need for manpower to continuously maintain the lifting of the spherical plug 52 during the maintenance of the slag separator 2. When the maintenance of the slag separator 2 is completed, the hook 544 is loosened from the hanging ring 545, and then the adjusting rod 542 is slowly and manually loosened. The spherical plug 52 is automatically restored to its original position through the suction of the slurry from the slurry outlet hole I511, completing the cutoff of the straight pipe 6. The slurry flows from the slurry outlet hole II512 through the pipeline into the slag separator 2, and finally enters the mixing tank 3 through the slag separator pipe 4.

[0043] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A quick switching device for a slurry conveying pipeline, comprising a cyclone (1), a slag separator (2), a stirring tank (3), a slag separator pipe (4), and a straight pipe (6), wherein the slurry outlet of the slag separator (2) is connected to the stirring tank (3) through the slag separator pipe (4); It is characterized in that The invention also comprises a switching mechanism (5), wherein the switching mechanism (5) comprises a switching box (51), a spherical plug (52), a rope chain (53), and a lifting unit (54). The switching box (51) is a hollow box body and is provided with a slurry outlet hole I (511) at the bottom and a slurry outlet hole II (512) at the middle of the side wall. The spherical plug (52) is arranged above the slurry outlet hole I (511) in the switching box (51). The top of the spherical plug (52) is connected to the lower end of the rope chain (53). The lifting unit (54) is arranged at the top of the switching box (51) and is connected to the upper end of the rope chain (53). The slurry outlet hole I (511) is connected to the stirring tank (3) through a straight pipe (6). The slurry outlet hole II (512) is connected to the slurry inlet of the slag separator (2) through a pipeline. The slurry outlet hole of the cyclone (1) is connected to the slurry inlet of the switching box (51) through a pipeline.

2. The slurry conveying pipeline quick switching device according to claim 1 is characterized in that: The spherical plug (52) is a sphere or a hemispherical structure at the bottom, the switching box (51) is a conical structure, the slurry outlet hole I (511) is arranged at the bottom end of the conical structure of the switching box (51), or the slurry outlet hole I (511) is a conical mouth, and the bottom diameter of the switching box (51) with a conical structure and the slurry outlet hole I (511) with a conical mouth is smaller than the diameter of the sphere or hemispherical body of the spherical plug (52), and the top diameter is larger than the diameter of the sphere or hemispherical body of the spherical plug (52).

3. The slurry conveying pipeline quick switching device according to claim 2 is characterized in that: When the slurry outlet hole I (511) is a conical opening, a guide tube (55) coaxial with the slurry outlet hole I (511) and extending upward is fixedly provided at the bottom of the switching box (51), and the inner diameter of the guide tube (55) is not less than the top diameter of the slurry outlet hole I (511).

4. The slurry conveying pipeline quick switching device according to claim 3 is characterized in that: The top end of the guide tube (55) is higher than the highest moving range of the spherical plug (52) and lower than the lowest end of the pulp outlet hole II (512); or a plurality of through holes are arranged at intervals along the side wall of the guide tube (55), and the top end of the guide tube (55) is higher than the highest moving range of the spherical plug (52).

5. The slurry conveying pipeline quick switching device according to claim 1 is characterized in that: A plurality of reinforcing ribs (56) are fixedly arranged at intervals on the side walls and / or the bottom wall inside the switching box (51), and a wear-resistant protective layer (57) covering the reinforcing ribs (56) is also arranged on the side walls and / or the bottom wall inside the switching box (51).

6. The slurry conveying pipeline quick switching device according to any one of claims 1 to 5, characterized in that: The lifting unit (54) comprises a bracket (541) and an adjusting rod (542); the bracket (541) is fixedly arranged on the top end of the switching box (51); one side of the adjusting rod (542) is hinged to the bracket (541) and one end of the adjusting rod (542) is connected to the upper end of the rope chain (53).

7. The slurry conveying pipeline quick switching device according to claim 6 is characterized in that: The adjusting rod (542) forms a lever structure, the upper end of the rope chain (53) is connected to the shorter side of the adjusting rod (542), and the lifting unit (54) further comprises a limiting rod (543) fixedly connected to the bracket (541) and arranged below the longer side of the adjusting rod (542) or above the shorter side of the adjusting rod (542), and the limiting rod (543) is perpendicular to the extension direction of the adjusting rod (542).

8. The slurry conveying pipeline quick switching device according to claim 7 is characterized in that: The limiting rod (543) is provided with a flexibly connected hook (544), and the adjusting rod (542) is fixedly provided with a hanging ring (545) that cooperates with the hook (544), and when the hook (544) is connected to the hanging ring (545), the spherical plug (52) is separated from the pulp outlet hole I (511).

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