Coal flotation pipe emulsification device

Abstract

The utility model discloses a coal flotation pipeline emulsifying device, it includes the pipeline of transverse arrangement, is installed with end plate respectively at the both ends of pipeline, is installed with the feed port in the middle part of an end plate, is installed with the discharge port in the middle part of another end plate, is rotatably equipped with several stirring shafts that are arranged evenly around the circumference of feed port between two end plates, is installed with the stirring vane outside stirring shaft, is provided with the drive mechanism of driving each stirring shaft rotation outside any end plate. Advantages: through setting up multiple stirring shafts in the pipeline, and setting up stirring vane on stirring shaft, make the process of the fine slime water that the slurry pretreater discharged is transported to the flotation machine realizes side stirring side transportation, and then guarantees that reagent and water are fully fused, makes reagent utilization rate to the best state, and makes good preparation for the next fine coal flotation.

Description

Technical fields:

[0001] This utility model relates to the field of coal flotation technology, and more specifically to a coal flotation pipeline emulsification device. Background technology:

[0002] In the traditional heavy media coal flotation process, the clean coal slurry is first pre-mixed with collectors and frothers in a slurry pre-processor, and then added to the flotation machine through pipelines. This causes a large amount of foam to be generated in the clean coal slurry. Due to the hydrophobic nature of clean coal, the clean coal slurry combines with the collector under the action of the collector, and at the same time, a large amount of foam is generated under the action of the frother. Due to the presence of foam, the clean coal slurry floats on the surface of the coal slurry and is carried out of the flotation cell by the action of the frothing scraper, thus completing the flotation process.

[0003] However, due to the different chemical properties of the collector and the frother, they are insoluble in water and cannot be evenly distributed in the coal slurry during the stirring process. The collector and the frother are prone to floating, resulting in uneven distribution of the collector and the frother in the coal slurry. In some areas, there is too little reagent and the coal slurry cannot be effectively floated out, resulting in waste of clean coal; while in other areas, the dosage is too large, the ash content of the selected clean coal is too high, and the product is unqualified. Utility model content:

[0004] The purpose of this invention is to provide a coal flotation pipeline emulsification device.

[0005] This utility model is implemented by the following technical solution: a coal flotation pipeline emulsification device, which includes a transversely arranged pipeline, end plates installed at both ends of the pipeline, a feed inlet installed in the middle of one end plate, and a discharge outlet installed in the middle of the other end plate; a plurality of stirring shafts are rotatably arranged between the two end plates, evenly arranged around the circumference of the feed inlet, and stirring blades are installed on the outside of the stirring shafts; a drive mechanism for driving each stirring shaft to rotate is provided on the outside of any of the end plates.

[0006] Furthermore, the stirring blades on the stirring shaft above the feed inlet are reverse spirals; the stirring blades on the stirring shaft below the feed inlet are forward spirals.

[0007] Furthermore, the drive mechanism includes a motor, a gear ring, and a driven gear. The driven gear is installed at the end of the stirring shaft. The gear ring is installed on the outside of the end plate. Both the driving gear and the driven gear mesh with the inner ring of the gear ring for transmission. The output shaft of the motor is connected to the end of any of the stirring shafts or to the gear ring for transmission.

[0008] Furthermore, a T-shaped guide vane is fixed inside the feed inlet, and the guide vane is inclined.

[0009] The advantages of this invention are: by setting multiple stirring shafts in the pipeline and setting stirring blades on the stirring shafts, the clean coal slurry discharged from the slurry preprocessor is transported to the flotation machine while being stirred, thereby ensuring that the reagents and water are fully mixed and that the reagent utilization rate is optimized, thus laying the groundwork for the next step of clean coal flotation. Attached image description:

[0010] Figure 1 This is a schematic diagram of the overall structure of this embodiment.

[0011] Figure 2 for Figure 1 The left view.

[0012] Pipeline 1, end plate 2, inlet 3, outlet 4, stirring shaft 5, stirring blades 6, drive mechanism 7, motor 71, drive gear 72, gear ring 73, driven gear 74, guide vane 8. Detailed implementation method:

[0013] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0014] like Figure 1 and 2 As shown, a coal flotation pipeline emulsification device includes a transversely arranged pipeline 1, with end plates 2 installed at both ends of the pipeline 1. A feed inlet 3 is installed in the middle of one end plate 2, and a T-shaped guide vane 8 is fixed inside the feed inlet 3, the guide vane 8 being inclined. A discharge outlet 4 is installed in the middle of the other end plate 2. A plurality of stirring shafts 5 are rotatably arranged around the circumference of the feed inlet 3 between the two end plates 2, and stirring blades 6 are installed on the outside of the stirring shafts 5. The stirring blades 6 on the stirring shafts 5 above the feed inlet 3 are reverse spirals; the stirring blades 6 on the stirring shafts 5 below the feed inlet 3 are forward spirals. By setting forward and reverse spirals, the mixing effect can be improved. A drive mechanism 7 for driving the rotation of each stirring shaft 5 is provided outside each end plate 2.

[0015] The drive mechanism 7 includes a motor 71, a gear ring 73, and a driven gear 74. The driven gear 74 is installed at the end of the stirring shaft 5. The gear ring 73 is installed on the outside of the end plate 2. Both the driving gear 72 and the driven gear 74 mesh with the inner ring of the gear ring 73 for transmission. The output shaft of the motor 71 is connected to the end of any stirring shaft 5 or to the gear ring 73 for transmission. In this embodiment, the output shaft of the motor 71 is driven by the gear meshing with the inner ring of the gear ring 73. The output shaft of the motor 71 drives the gear ring 73 to rotate through the gear. During the rotation of the gear ring 73, it drives each driven gear 74 to rotate each stirring shaft 5, thereby driving the stirring blades 6 to rotate and stir the fine coal slurry.

[0016] Working principle:

[0017] The clean coal slurry discharged from the slurry preprocessor enters the feed inlet 3 and is stirred and mixed under the guidance of the guide vanes 8, and then enters the pipe 1;

[0018] After the clean coal slurry enters the pipe 1, the stirring shaft 5 drives the stirring blades 6 to rotate, stirring and mixing the clean coal slurry in the pipe 1, so that the reagent and water are fully mixed, improving uniformity and thus ensuring the efficiency of flotation. In this embodiment, the upper stirring blades 6 are set as reverse spirals and the lower stirring blades 6 are set as forward spirals, which can achieve repeated stirring and further enhance the mixing effect.

[0019] As the clean coal slurry is poured in, the mixed clean coal slurry is finally discharged from outlet 6 into the flotation tank.

[0020] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A coal flotation pipeline emulsification device, characterized in that, It includes a horizontally arranged pipe, with end plates installed at both ends of the pipe, a feed inlet installed in the middle of one end plate, and a discharge outlet installed in the middle of the other end plate; a plurality of stirring shafts are rotatably arranged between the two end plates, evenly arranged around the circumference of the feed inlet, and stirring blades are installed on the outside of the stirring shafts; a drive mechanism for driving each stirring shaft to rotate is provided on the outside of any of the end plates. The stirring blades on the stirring shaft above the feed inlet are reverse spirals; the stirring blades on the stirring shaft below the feed inlet are forward spirals; a T-shaped guide blade is fixed inside the feed inlet, and the guide blade is inclined.

2. The coal flotation pipeline emulsification device according to claim 1, characterized in that, The drive mechanism includes a motor, a drive gear, a gear ring, and a driven gear. The driven gear is installed at the end of the stirring shaft. The gear ring is installed on the outside of the end plate. Both the drive gear and the driven gear mesh with the inner ring of the gear ring for transmission. The output shaft of the motor is connected to the end of any of the stirring shafts or to the gear ring for transmission.

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