Structure of vertical coal slurry pump

Abstract

The utility model relates to the technical field of coal slurry pumps, in particular to a structure of a vertical coal slurry pump, which comprises a mounting bracket, a motor mounted at the top of the mounting bracket, a rotating shaft shell mounted in the center of the bottom of the mounting bracket, an adjusting bin mounted at the bottom of the rotating shaft shell, and a coal slurry bin mounted at the bottom of the adjusting bin. A slurry outlet pipe is installed on one side of the coal slurry bin, an adjusting gear is rotationally connected to the interior of the adjusting bin, and an auxiliary gear is meshed with the exterior of the adjusting gear. According to the improved coal slurry pump, the adjusting blade for assisting rotation is arranged outside the slurry inlet to stir the coal slurry, the concentration of a coal slurry area is ensured to be constant, the coal slurry can uniformly enter the coal slurry pump, the blockage of the slurry inlet of the coal slurry pump is avoided, meanwhile, the crushing blade is arranged inside the slurry inlet to crush large particles in the coal slurry, and the crushing efficiency is improved. Large particles are prevented from blocking an overflowing channel in the coal slurry pump, smooth flowing of the coal slurry is guaranteed, and the using effect of the coal slurry pump is improved.

Description

Technical Field

[0001] This utility model relates to the field of coal slurry pump technology, specifically to the structure of a vertical coal slurry pump. Background Technology

[0002] A coal slurry pump is a pump specifically designed to transport fluid media containing coal powder particles. Internally, it typically consists of an impeller, pump casing, pump shaft, bearings, and support frame. When the impeller rotates rapidly, the blades cause the media to rotate. Under centrifugal force, the rotating media is ejected from the impeller. After the media is ejected, a vacuum zone forms in the center of the impeller. Under atmospheric pressure, the media is then forced through the pipeline into the feed pipe, thus achieving continuous feeding. During operation, because the particles in the mixed media vary in size, larger particles can easily clog the pump inlet under the pump's suction, narrowing the flow channel and hindering media flow, thus impeding the pump's operation.

[0003] During the design process of this utility model, the following problems were found in the existing technology: When the coal slurry pump is in use, larger particles in the coal slurry are prone to block the inlet of the coal slurry pump, which narrows the flow channel inside the coal slurry pump, causing poor flow of coal slurry and failing to ensure uniform feeding of coal slurry, thus affecting the use of the coal slurry pump. Utility Model Content

[0004] The purpose of this utility model is to provide a structure for a vertical coal slurry pump to solve the problem mentioned in the background art, where larger particles in the coal slurry easily clog the inlet of the coal slurry pump during use, causing the flow channel to narrow and making it impossible to ensure uniform feeding of coal slurry, thus affecting the normal use of the coal slurry pump.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a vertical coal slurry pump structure, including a mounting bracket, a motor mounted on the top of the mounting bracket, a rotating shaft housing mounted at the bottom center of the mounting bracket, an adjusting chamber mounted at the bottom of the rotating shaft housing, a coal slurry tank mounted at the bottom of the adjusting chamber, and a slurry outlet pipe mounted on one side of the coal slurry tank.

[0006] An adjusting gear is rotatably connected inside the adjusting chamber. An auxiliary gear meshes with the adjusting gear on the outside. An adjusting shaft is installed at the bottom center of the auxiliary gear, and an adjusting fan blade is installed at the bottom of the adjusting shaft.

[0007] More preferably, the bottom of the motor is driven by a drive shaft, which is rotatably connected to the inside of the shaft housing, and the bottom of the drive shaft and the top of the adjusting gear form a fixed connection structure.

[0008] More preferably, both ends of the adjusting gear are meshed with auxiliary gears, the diameter of the auxiliary gears is larger than that of the adjusting gear, and both the auxiliary gears and the adjusting gears are rotatably connected inside the adjusting chamber.

[0009] More preferably, the bottom of the coal slurry silo is provided with an external thread structure, and a filter cover is threadedly connected to the bottom of the coal slurry silo. The filter cover has multiple sets of filter holes of the same size evenly arranged inside. The adjusting fan blade is a long strip-shaped fan blade structure, and the adjusting fan blade is located below the filter cover.

[0010] More preferably, a centrifugal impeller is rotatably connected to the top of the coal slurry bin, and an impeller shaft is fixedly connected to the top of the centrifugal impeller. The impeller shaft is fixedly connected to the bottom of the adjusting gear, and sealed bearings are provided at the connection points between the impeller shaft and the adjusting shaft and the bottom of the adjusting bin.

[0011] More preferably, a crushing shaft is fixedly connected to the bottom of the centrifugal impeller, and multiple sets of inclined crushing blades are evenly arranged on the outside of the crushing shaft, and the inclination direction of the crushing blades is consistent with the rotation direction of the centrifugal impeller.

[0012] More preferably, one end of the discharge pipe is installed on one side of the centrifugal impeller, and the outer wall of the other end of the discharge pipe is embedded in one end of the mounting bracket, and a flange is installed on the other end of the discharge pipe.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: By setting an auxiliary rotating adjusting blade on the outside of the filter cover at the inlet of the coal slurry pump, the coal slurry is stirred and can be evenly entered into the coal slurry pump, preventing the inlet from being blocked due to large regional concentration differences. At the same time, the crushing blades set inside the inlet crush large particles in the incoming coal slurry, preventing large particles from blocking the flow channel inside the coal slurry pump, ensuring smooth flow of coal slurry, and thus improving the performance of the coal slurry pump. Attached Figure Description

[0014] Figure 1 This is a front view structural diagram of the present invention;

[0015] Figure 2 This is a schematic diagram of the structure of this utility model from below;

[0016] Figure 3 This is an enlarged exploded view of the internal structure of the regulating chamber of this utility model;

[0017] Figure 4 This is a magnified schematic diagram of the internal structure of the coal slurry silo of this utility model.

[0018] In the diagram: 1. Mounting bracket; 2. Motor; 201. Drive shaft; 3. Shaft housing; 4. Adjustment chamber; 401. Adjustment gear; 402. Auxiliary gear; 403. Adjustment shaft; 404. Adjustment fan blade; 5. Coal slurry chamber; 501. Filter cover; 502. Centrifugal impeller; 503. Crushing shaft; 504. Crushing blades; 6. Slurry outlet pipe. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figures 1 to 4 This utility model provides a technical solution: a structure of a vertical coal slurry pump, including a mounting bracket 1, a motor 2 mounted on the top of the mounting bracket 1, a rotating shaft housing 3 mounted at the bottom center of the mounting bracket 1, an adjusting chamber 4 mounted at the bottom of the rotating shaft housing 3, a coal slurry tank 5 mounted at the bottom of the adjusting chamber 4, and a slurry outlet pipe 6 mounted on one side of the coal slurry tank 5.

[0021] An adjusting gear 401 is rotatably connected inside the adjusting chamber 4. An auxiliary gear 402 meshes with the outside of the adjusting gear 401. An adjusting shaft 403 is installed at the bottom center of the auxiliary gear 402. An adjusting fan blade 404 is installed at the bottom of the adjusting shaft 403.

[0022] In this embodiment, as Figure 1 , Figure 2 and Figure 3 As shown, the bottom of the motor 2 is connected to a drive shaft 201, and the drive shaft 201 is rotatably connected to the inside of the shaft housing 3. The bottom of the drive shaft 201 and the top of the adjusting gear 401 form a fixed connection structure.

[0023] In this embodiment, as Figure 3 As shown, auxiliary gears 402 are meshed at both ends of the outer side of the adjusting gear 401, and the diameter of the auxiliary gear 402 is larger than that of the adjusting gear 401. Both the auxiliary gear 402 and the adjusting gear 401 are rotatably connected inside the adjusting chamber 4.

[0024] In this embodiment, as Figure 1 , Figure 2 and Figure 4As shown, the bottom of the coal slurry silo 5 is provided with an external thread structure, and the bottom of the coal slurry silo 5 is threadedly connected to a filter cover 501. The filter cover 501 is provided with multiple sets of filter holes of the same size evenly. The adjusting fan blade 404 is a long strip-shaped fan blade structure, and the adjusting fan blade 404 is located below the filter cover 501.

[0025] In this embodiment, as Figure 4 As shown, a centrifugal impeller 502 is rotatably connected to the top of the coal slurry silo 5, and an impeller shaft is fixedly connected to the top of the centrifugal impeller 502. The impeller shaft is fixedly connected to the bottom of the adjusting gear 401, and sealed bearings are provided at the connection points between the impeller shaft and the adjusting shaft 403 and the bottom of the adjusting silo 4.

[0026] In this embodiment, as Figure 4 As shown, a crushing shaft 503 is fixedly connected to the bottom of the centrifugal impeller 502, and multiple sets of inclined crushing blades 504 are evenly arranged on the outside of the crushing shaft 503, and the inclination direction of the crushing blades 504 is consistent with the rotation direction of the centrifugal impeller 502.

[0027] In this embodiment, as Figure 1 and Figure 4 As shown, one end of the discharge pipe 6 is installed on one side of the centrifugal impeller 502, and the outer wall of the other end of the discharge pipe 6 is embedded in one end of the mounting bracket 1, and a flange is installed on the other end of the discharge pipe 6.

[0028] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the structure of this vertical coal slurry pump and its working process during use are as follows:

[0029] First, immerse the coal slurry tank 5 and regulating tank 4 at the bottom of the coal slurry pump into the coal slurry to be pumped out, and fix the four corners of the top mounting bracket 1 to the top of the coal slurry pit. At the same time, connect the flange at one end of the slurry outlet pipe 6 to the corresponding pipe. After the installation is completed, start the motor 2 to drive the drive shaft 201 inside the shaft housing 3 to rotate.

[0030] Then the adjusting gear 401 at the bottom of the drive shaft 201 meshes with the auxiliary gears 402 at both ends to rotate in the adjusting chamber 4, thereby driving the adjusting shaft 403 below to rotate the adjusting fan blades 404 below the filter cover 501, stirring and guiding the coal slurry to the filter cover 501.

[0031] Next, the adjusting gear 401 drives the centrifugal impeller 502 connected to the impeller shaft to rotate in the coal slurry tank 5. The centrifugal force drives the coal slurry to enter the coal slurry tank 5 after preliminary filtration through the filter cover 501 at the bottom inlet. At the same time, the crushing shaft 503 below the centrifugal impeller 502 drives the crushing blades 504 to agitate and shear the large particles in the coal slurry, so as to avoid large particles clogging the flow channel and causing the coal slurry pump to be blocked.

[0032] Finally, under centrifugal force, the centrifugal impeller 502 drives the coal slurry to be discharged from the slurry outlet pipe 6 at one end of the coal slurry bin 5, thus completing the use of the coal slurry pump. After use, the connection between the mounting bracket 1 and the slurry outlet pipe 6 can be removed to complete the disassembly of the coal slurry pump.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A structure of a vertical coal slurry pump comprising a mounting bracket (1), characterized in that: The top of the mounting bracket (1) is provided with a motor (2), the bottom center of the mounting bracket (1) is provided with a rotating shaft shell (3), the bottom of the rotating shaft shell (3) is provided with an adjusting bin (4), the bottom of the adjusting bin (4) is provided with a coal slurry bin (5), one side of the coal slurry bin (5) is provided with a slurry outlet pipe (6); The inside of the adjusting bin (4) is rotatably connected with an adjusting gear (401), the outside of the adjusting gear (401) is engaged with an auxiliary gear (402), the bottom center of the auxiliary gear (402) is provided with an adjusting shaft (403), and the bottom of the adjusting shaft (403) is provided with an adjusting fan blade (404).

2. The vertical coal slurry pump according to claim 1, wherein: The bottom of the motor (2) is drivingly connected with a driving rotating shaft (201), and the driving rotating shaft (201) is rotatably connected to the inside of the rotating shaft shell (3), and the bottom of the driving rotating shaft (201) is fixedly connected with the top of the adjusting gear (401).

3. The vertical coal slurry pump according to claim 1, wherein: The outside of the adjusting gear (401) is engaged with an auxiliary gear (402) at both ends, the diameter of the auxiliary gear (402) is greater than that of the adjusting gear (401), and the auxiliary gear (402) and the adjusting gear (401) are both rotatably connected to the inside of the adjusting bin (4).

4. The structure of a vertical coal slurry pump according to claim 1, characterized in that: The bottom of the coal slurry bin (5) is provided with an external thread structure, the bottom of the coal slurry bin (5) is threadedly connected with a filter cover (501), the inside of the filter cover (501) is uniformly provided with a plurality of groups of filter holes with the same size, the adjusting fan blade (404) is a long strip-shaped fan blade structure, and the adjusting fan blade (404) is located below the filter cover (501).

5. The structure of a vertical coal slurry pump according to claim 1, characterized in that: The top of the coal slurry bin (5) is rotatably connected with a centrifugal impeller (502), the top of the centrifugal impeller (502) is fixedly connected with an impeller shaft, and the impeller shaft is fixedly connected with the bottom of the adjusting gear (401), and the connection between the impeller shaft and the adjusting shaft (403) and the bottom of the adjusting bin (4) is provided with a sealing bearing.

6. The structure of a vertical coal slurry pump according to claim 5, characterized in that: The bottom of the centrifugal impeller (502) is fixedly connected with a crushing shaft (503), the outside of the crushing shaft (503) is uniformly provided with a plurality of groups of inclined crushing blades (504), and the inclination direction of the crushing blades (504) is consistent with the rotation direction of the centrifugal impeller (502).

7. The structure of a vertical coal slurry pump according to claim 1, characterized in that: One end of the slurry outlet pipe (6) is mounted on one side of the centrifugal impeller (502), the other end of the slurry outlet pipe (6) is inlaid in one end of the mounting bracket (1), and the other end of the slurry outlet pipe (6) is provided with a flange plate.

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