Flocculating agent feeding tank for coal washing workshop

Abstract

The utility model relates to a flocculating agent feeding tank for a coal washing workshop, and belongs to the technical field of flocculating agent feeding tanks. Comprising a tank body and a first hollow stirring shaft, an opening in the upper surface of the tank body is fixedly connected with an upper cover, a through hole is formed in the center of the surface of the upper cover in a penetrating mode, and the first stirring shaft is rotationally connected into the through hole. According to the stirring device disclosed by the utility model, the second stirring shaft which rotates at a relatively high speed can effectively and fully stir a solution at the lower half part in the tank body through the second stirring blades on the outer side, and precipitation is prevented, so that the uniformity of the solution is kept. And the stirring shaft I which rotates at a low speed effectively stirs the solution at the upper half part in the tank body through the stirring blades I on the outer side, and meanwhile, the problem of liquid level fluctuation caused by stirring is reduced. And secondly, the flocculating agent is sprayed out through the annular pipe and the spray head, so that the flocculating agent can be uniformly and comprehensively sprayed above the solution in the tank body, and the situation that the local concentration of the flocculating agent in the tank body is too high or too low is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of flocculant dosing tanks, in particular to a flocculant dosing tank for a coal washing workshop. Background Art

[0002] When the coal washing workshop processes coal, some chemical agents need to be added to achieve better removal of impurities or improve the quality of coal. Among them, flocculants are commonly used chemical agents to help aggregate and precipitate fine particles suspended in water or media, thereby achieving separation and removal of impurities.

[0003] The existing flocculant dosing tanks in coal washing plants rely solely on a single set of agitators for stirring, which results in poor stirring effects and a large difference in density between the solution in the upper and lower parts of the tank. This difference can cause precipitation of the solution in the lower part of the tank, which has a negative impact on the subsequent flotation process production stability, thereby reducing the efficiency of coal washing. In addition, when adding flocculants to the tank, the use of a fixed-point delivery method will cause the local concentration of the flocculant in the tank to be too high or too low, thereby increasing the risk of precipitation and further affecting the stirring effect. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a flocculant dosing tank for a coal washing workshop. The technical solution of the utility model is as follows:

[0005] A flocculant dosing tank for a coal washing workshop comprises a tank body and a hollow stirring shaft 1, the upper surface opening of the tank body is fixedly connected to an upper cover, the surface center of the upper cover is penetrated by a through hole, the stirring shaft 1 is rotatably connected to the inside of the through hole, a plurality of groups of stirring blades 1 are equidistantly fixedly connected to the outside of the stirring shaft 1, and the plurality of groups of stirring blades 1 are distributed in the upper inner half of the tank body, the stirring blade 1 comprises two groups of paddle blades 1, the two groups of paddle blades 1 are respectively arranged on both sides of the stirring shaft 1 opposite to each other, a scraper plate is fixedly connected to the side of the paddle blade 1 away from the stirring shaft 1, the scraper plate is in contact with the inner wall of the tank body, a driving member 1 for driving the stirring shaft 1 to rotate is connected to the rear side of the upper surface of the upper cover, the interior of the stirring shaft 1 is rotatably connected to a rotating shaft, a stirring shaft 2 is fixedly connected to the lower surface of the rotating shaft, and the stirring shaft 2 The outer side of the tank body is equidistantly fixedly connected with multiple groups of stirring blades 2, and the multiple groups of stirring blades 2 are distributed in the lower half of the inner part of the tank body, the stirring blades 2 include two groups of paddle blades 2, and the two groups of paddle blades 2 are respectively arranged on both sides of the stirring shaft 2 opposite to each other, the lower surface of the stirring shaft 2 is fixedly connected with a scraping plate, and the lower surface of the scraping plate is in contact with the bottom wall of the tank body, the front side of the upper surface of the upper cover is connected with a driving member 2 for driving the rotating shaft to rotate, the rotation rate of the driving member 2 is greater than the rotation rate of the driving member 1, a connecting pipe is connected through the right side of the upper surface of the upper cover, the upper end of the connecting pipe is fixedly connected with a spray device, and the top of the spray device is connected with a water tank for storing flocculant, the lower end of the connecting pipe is fixedly connected with an annular pipe, the annular pipe is located inside the upper cover, and the lower surface of the annular pipe is equidistantly connected with a plurality of groups of nozzles.

[0006] Optionally, a manhole is formed through the left side of the upper surface of the upper cover, and a sealing cover is movably connected above the manhole.

[0007] Optionally, the blade one is arranged to be inclined, and the inclination angle of the blade one is between 10 degrees and 20 degrees.

[0008] Optionally, a rubber pad is bonded to the outer side of the scraper plate.

[0009] Optionally, the driving member 1 includes a fixing frame 1, which is fixedly connected to the rear side of the upper surface of the upper cover, a reduction motor 1 is fixedly connected to the inner top of the fixing frame 1, a main gear 1 is fixedly connected to the output shaft of the reduction motor 1, a sub-gear 1 is fixedly connected to the outer side of the stirring shaft 1 and located above the through hole, and the main gear 1 and the sub-gear 1 are meshed.

[0010] Optionally, the blade 2 is arranged to be inclined, and the inclination angle of the blade 2 is between 30 degrees and 45 degrees.

[0011] Optionally, a rubber pad is bonded to the outer side of the scraper bottom plate.

[0012] Optionally, the second driving member includes a second fixing frame, which is fixedly connected to the front side of the upper surface of the upper cover, and a second reduction motor is fixedly connected to the inner bottom of the second fixing frame, and a second reduction motor is fixedly connected to the output shaft of the second reduction motor, and a second sub-gear is fixedly connected to the outer side of the rotating shaft and above the through hole, and the main gear 2 is meshed with the second sub-gear.

[0013] All the above optional technical solutions can be combined arbitrarily, and the present utility model does not provide detailed descriptions of the structures after the combinations.

[0014] By means of the above scheme, the beneficial effects of the utility model are as follows:

[0015] 1. The utility model stirs the solution in the tank body in different zones by setting two groups of stirring shafts with different rotation speeds. Among them, the stirring shaft 2 with a faster rotation speed can effectively and fully stir the solution in the lower half of the tank body through the stirring blade 2 on the outside, prevent the generation of precipitation, and thus maintain the uniformity of the solution. The stirring shaft 1 with a slower rotation speed can effectively stir the solution in the upper half of the tank body through the stirring blade 1 on the outside, while reducing the problem of liquid level fluctuation caused by stirring. At the same time, since the stirring shaft 1 with a slower rotation speed adopts a lower rotation speed, it reduces energy consumption, which not only saves energy but also reduces operating costs.

[0016] 2. The flocculant is sprayed through the annular tube and nozzle, which can ensure that the flocculant is evenly and comprehensively sprayed above the solution in the tank, avoiding the situation where the local concentration of the flocculant in the tank is too high or too low, making the flocculant distribution more uniform, preventing the formation of precipitation, and thus improving the stirring effect.

[0017] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the utility model in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall appearance structure of the flocculant dosing tank for a coal washing workshop provided by the utility model;

[0019] Figure 2 A front view of a flocculant dosing tank for a coal washing workshop provided by the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the upper cover, stirring shaft 1, stirring shaft 2 and other parts in the utility model;

[0021] Figure 4It is a schematic diagram of the structure in which the stirring shaft 1, the driving member 1, the rotating shaft, the stirring shaft 2 and the driving member 2 in the utility model cooperate with each other;

[0022] Figure 5 This is a schematic diagram of the structure in which the stirring shaft 1 and the rotating shaft cooperate in the utility model;

[0023] Figure 6 It is a schematic diagram of the structure in which the upper cover and the annular tube cooperate with each other in the utility model.

[0024] Numbers in the figure: 1, tank body; 2, upper cover; 21, manhole; 22, sealing cover; 23, through hole; 3, stirring shaft one; 31, stirring blade one; 311, paddle blade one; 312, scraper plate; 4, driving member one; 41, fixing frame one; 42, reduction motor one; 43, main gear one; 44, sub gear one; 5, rotating shaft; 6, stirring shaft two; 61, stirring blade two; 611, paddle blade two; 62, scraper plate; 7, driving member two; 71, fixing frame two; 72, reduction motor two; 73, main gear two; 74, sub gear two; 8, connecting pipe; 81, spray device; 82, water tank; 83, annular pipe; 84, nozzle. DETAILED DESCRIPTION

[0025] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0026] See also Figure 1-6The utility model provides a flocculant dosing tank for a coal washing workshop, comprising a tank body 1 and a hollow stirring shaft 3, the upper surface opening of the tank body 1 is fixedly connected with an upper cover 2, a through hole 23 is penetrated and opened at the center of the surface of the upper cover 2, the stirring shaft 3 is rotatably connected to the inside of the through hole 23, a plurality of groups of stirring blades 31 are equidistantly fixedly connected to the outside of the stirring shaft 3, and the plurality of groups of stirring blades 31 are distributed in the upper inner half of the tank body 1, the stirring blade 31 comprises two groups of paddle blades 311, the two groups of paddle blades 311 are respectively arranged on both sides of the stirring shaft 3, a scraper plate 312 is fixedly connected to the side of the paddle blade 311 away from the stirring shaft 3, the scraper plate 312 is fitted with the inner wall of the tank body 1, a driving member 4 for driving the stirring shaft 3 to rotate is connected to the rear side of the upper surface of the upper cover 2, a rotating shaft 5 is rotatably connected to the inside of the stirring shaft 3, a stirring shaft 26 is fixedly connected to the lower surface of the rotating shaft 5, and the stirring A plurality of groups of stirring blades 61 are equidistantly fixedly connected to the outer side of the mixing shaft 6, and the plurality of groups of stirring blades 61 are distributed in the lower half of the interior of the tank body 1. The stirring blades 61 include two groups of paddle blades 611, and the two groups of paddle blades 611 are respectively arranged on both sides of the stirring shaft 6 opposite to each other. A scraping plate 62 is fixedly connected to the lower surface of the stirring shaft 6, and the lower surface of the scraping plate 62 is in contact with the bottom wall of the tank body 1. A driving member 7 for driving the rotating shaft 5 to rotate is connected to the front side of the upper surface of the upper cover 2. The rotation rate of the driving member 7 is greater than the rotation rate of the driving member 4. A connecting pipe 8 is connected through the right side of the upper surface of the upper cover 2. A spray device 81 is fixedly connected to the upper end of the connecting pipe 8. A water tank 82 for storing flocculants is connected above the spray device 81. An annular pipe 83 is fixedly connected to the lower end of the connecting pipe 8. The annular pipe 83 is located inside the upper cover 2, and a plurality of groups of nozzles 84 are equidistantly connected to the lower surface of the annular pipe 83.

[0027] Furthermore, a feed pipe is connected through the left side wall of the tank body 1 , and a discharge pipe is connected through the bottom of the tank body 1 .

[0028] The utility model provides two sets of stirring shafts with different rotation speeds to ensure that the solution in the entire tank body 1 is properly stirred, thereby improving the stirring efficiency and reducing the generation of precipitates. Specifically, the stirring shaft 13 can drive the stirring blade 131 to stir the solution in the upper half of the tank body 1, and the stirring shaft 26 can drive the stirring blade 261 to stir the solution in the lower half of the tank body 1. Among them, the rotation speed of the stirring shaft 26 is much greater than the rotation speed of the stirring shaft 13, which means that the stirring shaft 26 can stir the solution in the lower half of the tank body 1 faster, thereby effectively reducing the generation of precipitates. The rotation speed of the stirring shaft 13 is slow, but it is still sufficient to ensure that the solution in the upper half of the tank body 1 is effectively stirred, while avoiding excessive fluctuations in the liquid level.

[0029] The annular tube 83 is located above the tank body 1, and nozzles 84 are equidistantly arranged on its lower surface, which can ensure that the flocculant is sprayed evenly and comprehensively above the solution in the tank body 1, avoiding the situation where the local concentration of the flocculant in the tank body 1 is too high or too low, making the flocculant distribution more uniform, thereby improving the stirring effect.

[0030] The spray device 81 is a prior art and will not be described in detail herein. The function of the spray device 81 is to spray the flocculant in the water tank 82 in the form of mist.

[0031] Furthermore, a manhole 21 is provided on the left side of the upper surface of the upper cover 2, and a sealing cover 22 is movably connected above the manhole 21. The manhole 21 is provided to facilitate personnel to enter the tank body 1 for maintenance, cleaning or sampling. The sealing cover 22 above the manhole 21 can usually be opened or closed to ensure that the tank body 1 is kept sealed when not in use to prevent leakage or contamination of the solution in the tank body 1.

[0032] Furthermore, the blade 1 311 is tilted, and the tilt angle of the blade 1 311 is between 10 degrees and 20 degrees. The blade 1 311 with a smaller tilt angle only requires very little energy to maintain the stirring process while stirring effectively, thereby saving energy costs. In addition, the blade 1 311 with a smaller tilt angle can reduce the fluctuation of the liquid level during stirring, thereby maintaining the stability of the stirring process.

[0033] Furthermore, a rubber pad is bonded to the outer side of the scraper plate 312. When the blade 1 311 drives the scraper plate 312 to rotate, the rubber pad on the outer side of the scraper plate 312 always fits with the inner wall of the tank body 1, so that the scraper plate 312 can effectively scrape off the attachments on the inner wall of the tank body 1, thereby ensuring that the solution in the tank body 1 can be fully mixed. At the same time, the provision of the rubber pad reduces the direct contact between the scraper plate 312 and the tank body 1, effectively reducing the friction and wear between the two, which helps to extend the service life of the scraper plate 312, reduce the frequency of maintenance and replacement, and reduce the maintenance cost of the equipment.

[0034] Furthermore, the driving member 4 includes a fixing frame 41, which is fixedly connected to the rear side of the upper surface of the upper cover 2, and a reduction motor 42 is fixedly connected to the inner top of the fixing frame 41, and the output shaft of the reduction motor 42 is fixedly connected to the main gear 43, and the outer side of the stirring shaft 3 and above the through hole 23 is fixedly connected to the sub-gear 44, and the main gear 43 and the sub-gear 44 are meshed. The reduction motor 42 drives the main gear 43 to rotate through the output shaft, and then transmits the power to the stirring shaft 3 through the meshing of the main gear 43 and the sub-gear 44, so that the stirring blade 31 outside the stirring shaft 3 completes the stirring of the solution in the upper half of the tank body 1. This structure is simple and effective, and can achieve stable stirring operation.

[0035] Furthermore, the second blade 611 is tilted, and the tilt angle of the second blade 611 is between 30 degrees and 45 degrees. The second blade 611 with a larger tilt angle can increase the effective stirring force during the stirring process, so that the second blade 611 can more effectively transfer energy to the solution, ensuring that the flocculant in the solution is fully stirred and suspended in the solution, and preventing it from being deposited at the bottom of the tank 1.

[0036] Furthermore, a rubber pad is bonded to the outer side of the scraper plate 62. When the stirring shaft 26 drives the scraper plate 62 to rotate, the rubber pad is always in contact with the bottom wall inside the tank body 1. This close contact enables the scraper plate 62 to effectively scrape off the substances deposited at the bottom of the tank body 1. In this way, it can help keep the bottom of the tank body 1 clean and prevent the accumulation and accumulation of sediment. At the same time, the provision of the rubber pad reduces the direct contact between the scraper plate 62 and the tank body 1, effectively reducing the friction and wear between the two, which helps to extend the service life of the scraper plate 62, reduce the frequency of maintenance and replacement, and reduce the maintenance cost of the equipment.

[0037] Further, the driving member 27 comprises a fixing frame 271, which is fixedly connected to the front side of the upper surface of the upper cover 2, a reduction motor 272 is fixedly connected to the inner bottom of the fixing frame 271, a main gear 273 is fixedly connected to the output shaft of the reduction motor 272, and a sub gear 274 is fixedly connected to the outer side of the rotating shaft 5 and above the through hole 23, and the main gear 273 and the sub gear 274 are meshed. The reduction motor 272 drives the main gear 273 to rotate through the output shaft, and then transmits the power to the rotating shaft 5 and the stirring shaft 26 through the meshing of the main gear 273 and the sub gear 274, so that the stirring blade 261 on the outer side of the stirring shaft 26 completes the stirring of the solution in the lower half of the tank body 1. This structure is simple and effective, and can achieve stable stirring operation.

[0038] Working principle: In the first step, the spray device 81 sprays the flocculant in the water tank 82 evenly on the surface of the solution inside the tank body 1 through the annular tube 83 and the nozzle 84. In the second step, the reduction motor 1 42 and the reduction motor 2 72 operate synchronously, and the output shaft rotation rate of the reduction motor 1 42 is less than the output shaft rotation rate of the reduction motor 2 72. The specific process is: the output shaft of the reduction motor 1 42 drives the main gear 1 43 to rotate, thereby driving the sub-gear 1 44 meshing with it to rotate synchronously with the stirring shaft 1 3, and the stirring shaft 1 3 drives the outer stirring blade 1 31 to stir the solution in the upper half of the tank body 1. While stirring, the stirring blade 1 31 will also drive the scraper plate 312 to scrape off the attachments inside the tank body 1. The output shaft of the reduction motor 2 72 drives the main gear 2 73 to rotate, thereby driving the sub-gear 2 74 meshing with it to rotate synchronously with the rotating shaft 5, and the rotating shaft 5 drives the outer stirring blade 2 61 through the stirring shaft 2 6 to stir the solution in the lower half of the tank body 1. When the stirring shaft 2 6 rotates, it also drives the scraper plate 62 below to rotate. The scraper plate 62 can scrape up the sediment on the bottom wall of the tank body 1 to prevent it from adhering to the bottom wall of the tank body 1 for a long time, making the stirring more uniform.

[0039] It should be noted that the reduction motor 1 42 , the reduction motor 2 72 and the spray device 81 mentioned above can all be electrically connected to the control terminal, so as to realize automatic stirring of the solution inside the tank body 1 and automatic addition of flocculant.

[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the technical principle of the present invention, and these improvements and modifications should also be regarded as within the protection scope of the present invention.

Claims

1. A flocculant dosing tank for a coal washing workshop, characterized in that: The invention comprises a tank body (1) and a hollow stirring shaft (3), wherein the upper surface opening of the tank body (1) is fixedly connected to an upper cover (2), a through hole (23) is provided through the center of the surface of the upper cover (2), the stirring shaft (3) is rotatably connected to the inside of the through hole (23), a plurality of groups of stirring blades (31) are equidistantly fixedly connected to the outside of the stirring shaft (3), and the plurality of groups of stirring blades (31) are distributed in the upper inner half of the tank body (1), the stirring blades (31) include two groups of paddle blades (311), and the two groups of paddle blades (311) are connected to the inside of the through hole (23). The paddle blades (311) are respectively arranged on both sides of the stirring shaft (3); a scraper plate (312) is fixedly connected to the side of the paddle blade (311) away from the stirring shaft (3); the scraper plate (312) is in contact with the inner wall of the tank body (1); a driving member (4) for driving the stirring shaft (3) to rotate is connected to the rear side of the upper surface of the upper cover (2); a rotating shaft (5) is rotatably connected to the inside of the stirring shaft (3); a stirring shaft (6) is fixedly connected to the lower surface of the rotating shaft (5); and the outer side of the stirring shaft (6) is equidistantly fixed. A plurality of groups of stirring blades (61) are fixedly connected, and the plurality of groups of stirring blades (61) are distributed in the lower half of the interior of the tank body (1), the stirring blades (61) include two groups of paddle blades (611), and the two groups of paddle blades (611) are respectively arranged on both sides of the stirring shaft (6) facing each other, a scraping plate (62) is fixedly connected to the lower surface of the stirring shaft (6), and the lower surface of the scraping plate (62) is in contact with the bottom wall of the tank body (1), and a driving member (6) for driving the rotating shaft (5) to rotate is connected to the front side of the upper surface of the upper cover (2). (7), the rotation rate of the driving member 2 (7) is greater than the rotation rate of the driving member 1 (4), a connecting pipe (8) is connected to the right side of the upper surface of the upper cover (2), the upper end of the connecting pipe (8) is fixedly connected to a spray device (81), the upper part of the spray device (81) is connected to a water tank (82) for storing flocculants, the lower end of the connecting pipe (8) is fixedly connected to an annular pipe (83), the annular pipe (83) is located inside the upper cover (2), and the lower surface of the annular pipe (83) is equidistantly connected to a plurality of groups of spray heads (84).

2. The flocculant dosing tank for coal washing workshop according to claim 1 is characterized in that: A manhole (21) is formed through the left side of the upper surface of the upper cover (2), and a sealing cover (22) is movably connected above the manhole (21).

3. The flocculant dosing tank for coal washing workshop according to claim 1, characterized in that: The blade one (311) is arranged to be inclined, and the inclination angle of the blade one (311) is between 10 degrees and 20 degrees.

4. The flocculant dosing tank for coal washing workshop according to claim 1, characterized in that: A rubber pad is bonded to the outer side of the scraper plate (312).

5. The flocculant dosing tank for coal washing workshop according to claim 1, characterized in that: The driving member 1 (4) comprises a fixing frame 1 (41), the fixing frame 1 (41) being fixedly connected to the rear side of the upper surface of the upper cover (2), a reduction motor 1 (42) being fixedly connected to the inner top of the fixing frame 1 (41), the output shaft of the reduction motor 1 (42) being fixedly connected to a main gear 1 (43), and a sub-gear 1 (44) being fixedly connected to the outer side of the stirring shaft 1 (3) and located above the through hole (23), the main gear 1 (43) and the sub-gear 1 (44) being meshed with each other.

6. The flocculant dosing tank for coal washing workshop according to claim 1, characterized in that: The second blade (611) is arranged to be inclined, and the inclination angle of the second blade (611) is between 30 degrees and 45 degrees.

7. The flocculant dosing tank for coal washing workshop according to claim 1, characterized in that: A rubber pad is bonded to the outer side of the scraper bottom plate (62).

8. The flocculant dosing tank for coal washing workshop according to claim 1, characterized in that: The second driving member (7) comprises a second fixing frame (71), the second fixing frame (71) is fixedly connected to the front side of the upper surface of the upper cover (2), a second reduction motor (72) is fixedly connected to the inner bottom of the second fixing frame (71), the output shaft of the second reduction motor (72) is fixedly connected to a second main gear (73), and a second sub-gear (74) is fixedly connected to the outer side of the rotating shaft (5) and located above the through hole (23), and the second main gear (73) and the second sub-gear (74) are meshed.

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