CN212774778U - Vertical wear-resisting type sediment stuff pump - Google Patents
Vertical wear-resisting type sediment stuff pump Download PDFInfo
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- CN212774778U CN212774778U CN202021311649.2U CN202021311649U CN212774778U CN 212774778 U CN212774778 U CN 212774778U CN 202021311649 U CN202021311649 U CN 202021311649U CN 212774778 U CN212774778 U CN 212774778U
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Abstract
The utility model discloses a vertical wear-resistant slurry pump relating to the field of slurry pumps, which comprises a pump body, wherein the bottom of the pump body is provided with a liquid inlet, and a wear-resistant transition ring is arranged at the joint of the liquid inlet and the pump body; the inner diameter of the wear-resistant transition ring is gradually increased from bottom to top, and the thickness of the transition ring is gradually decreased from bottom to top; the inner wall of the pump body is provided with a first chromium carbide layer. In the utility model, the wear-resistant transition ring is arranged at the joint of the liquid inlet and the pump body, so that the wear resistance of the joint of the liquid inlet and the pump body can be improved; and the thickness of the wear-resistant transition ring is gradually increased from top to bottom, so that the service life of the wear-resistant transition ring is prolonged, and the problem that the service life of a slurry pump is short due to the fact that the connection part of the liquid inlet and the pump body is seriously abraded in the slurry suction process is solved. The inner wall of the pump body is provided with the first chromium carbide layer, the wear resistance of the inner wall of the pump body can be improved through the arrangement of the first chromium carbide layer, and then the wear resistance of the vertical wear-resistant slurry pump is improved, so that the service life is prolonged.
Description
Technical Field
The utility model belongs to sediment stuff pump field, in particular to vertical wear-resisting type sediment stuff pump.
Background
The vertical slurry pump is a single-stage and single-suction cantilever structure and is used for conveying slurry containing solid particles with certain concentration, generally immersed in a slurry pool or a pit for working, does not need any shaft seal or shaft seal water, is convenient to install, occupies a small space, does not have any leakage and the like, and is widely applied to the industries of mines, metallurgy, electric power, coal, chemical industry, building materials and the like.
When the vertical slurry pump is used for conveying slurry, the slurry is abraded, so that the vertical slurry pump can be strongly washed by medium particles during working, the slurry pump is seriously abraded, and the service life is shortened.
SUMMERY OF THE UTILITY MODEL
The utility model provides a vertical wear-resisting type sediment stuff pump can improve the wearability of sediment stuff pump, increase of service life.
The technical scheme of the utility model is realized like this:
a vertical wear-resistant slurry pump comprises a pump body, wherein a shaft penetrates through the pump body to enter the pump body and is connected with an impeller; a liquid inlet is arranged at the bottom of the pump body, a liquid outlet bent pipe is arranged at one side of the pump body, one end of the liquid outlet bent pipe is communicated with the side wall of the pump body, and a liquid outlet is arranged at the other end of the liquid outlet bent pipe; the pump is characterized in that a groove is formed at the joint of the liquid inlet and the pump body, a wear-resistant transition ring is arranged in the groove, the inner wall of one end of the wear-resistant transition ring is flush with the inner wall of the pump body, and the inner wall of the other end of the wear-resistant transition ring is flush with the inner wall of the liquid inlet;
the inner diameter of the wear-resistant transition ring is gradually increased from bottom to top, and the thickness of the transition ring is gradually decreased from bottom to top;
the inner wall of the pump body is provided with a first chromium carbide layer.
Furthermore, a first semicircular pipeline is arranged on the left side in the liquid inlet, and a second semicircular pipeline is arranged on the right side in the liquid inlet;
the openings of the first semicircular pipeline and the second semicircular pipe are opposite;
a plurality of pressure springs are uniformly distributed between the outer wall of the first semicircular pipeline and the inner wall of the water inlet and between the outer wall of the second semicircular pipeline and the inner wall of the water inlet;
the outer diameters of the first semicircular pipeline and the second semicircular pipeline are decreased progressively from bottom to top to form a circular truncated cone-shaped pipeline.
Furthermore, the material of the wear-resistant transition ring is wear-resistant ceramic.
Further, the impeller sequentially comprises a first wheel disc, a second wheel disc and a third wheel disc from top to bottom; the middle part of the third wheel disc is provided with a liquid inlet hole; a plurality of blades are uniformly distributed between the third wheel disc and the second wheel disc along the circumferential direction, and a liquid inlet channel is formed between each two adjacent blades and the liquid inlet hole; the top surface of the first wheel disc is provided with a plurality of first arc bulges, the first arc bulges are arranged on the first wheel disc along the central circular array of the first wheel disc, the bottom surface of the third wheel disc is provided with a plurality of second arc bulges, and the second arc bulges are arranged on the third wheel disc along the central circular array of the third wheel disc.
Further, the second disc is larger than the outer diameter of the first disc and equal to the outer diameter of the third disc.
Further, the number of the first arc-shaped protrusions is smaller than that of the second arc-shaped protrusions.
Furthermore, the first wheel disc, the second wheel disc, the third wheel disc, the blades, the first arc-shaped bulges and the second arc-shaped bulges are all made of hard alloy.
Furthermore, the outer surfaces of the first wheel disc, the second wheel disc, the third wheel disc, the blades, the first arc-shaped bulges and the second arc-shaped bulges are provided with second chromium carbide layers.
The utility model provides a vertical wear-resisting type sediment stuff pump has following advantage:
1) in the utility model, the wear-resistant transition ring is arranged at the joint of the liquid inlet and the pump body, so that the wear resistance of the joint of the liquid inlet and the pump body can be improved; and the thickness of the wear-resistant transition ring is gradually increased from top to bottom, so that the service life of the wear-resistant transition ring is prolonged, and the problem that the service life of a slurry pump is short due to the fact that the connection part of the liquid inlet and the pump body is seriously abraded in the slurry suction process is solved.
2) The first chromium carbide layer is arranged on the inner wall of the pump body, and the chromium carbide is used as a carbide, so that the pump body has good oxidation resistance, corrosion resistance, high hardness and good wear resistance, the wear resistance of the inner wall of the pump body can be improved by the arrangement of the first chromium carbide layer, the wear resistance of the vertical wear-resistant slurry pump is improved, and the service life of the vertical wear-resistant slurry pump is prolonged.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of a vertical wear-resistant slurry pump of the present invention;
FIG. 2 is an enlarged view of A-A in FIG. 1;
FIG. 3 is a schematic structural view of the impeller of FIG. 1;
FIG. 4 is a schematic illustration of the first wheel disc of FIG. 1;
fig. 5 is a schematic view of the third wheel disc of fig. 1.
In the figure:
1. a pump body; 2. an impeller; 21. a first wheel disc; 22. a second wheel disc; 23. a third wheel disc; 24. a blade; 25. a first arc-shaped protrusion; 26. a second arc-shaped protrusion; 3. a shaft; 4. a liquid inlet; 41. a first semi-circular conduit; 42. a second semi-circular conduit; 43. a pressure spring; 5. a liquid outlet bent pipe; 6. a wear-resistant transition ring.
Detailed Description
The following describes the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
It should be noted that, in the description of the present invention, it is to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the technical scheme, the terms "first" and "second" are only used for referring to the same or similar structures or corresponding structures with similar functions, and are not used for ranking the importance of the structures, or comparing the sizes or other meanings.
With reference to fig. 1-5, the utility model provides a vertical wear-resistant slurry pump, which comprises a pump body 1, wherein a shaft 3 passes through a through hole at the top of the pump body 1 and enters the pump body 1 to be connected with an impeller 21; a liquid inlet 4 is arranged at the bottom of the pump body 1, a liquid outlet bent pipe 5 is arranged at one side of the pump body 1, one end of the liquid outlet bent pipe 5 is communicated with the side wall of the pump body 1, and a liquid outlet is arranged at the other end; a groove is arranged at the joint of the liquid inlet 4 and the pump body 1, a wear-resistant transition ring 6 is arranged in the groove, the inner wall of one end of the wear-resistant transition ring 6 is flush with the inner wall of the pump body 1, and the inner wall of the other end of the wear-resistant transition ring is flush with the inner wall of the liquid inlet 4;
the inner diameter of the wear-resistant transition ring 6 is gradually increased from bottom to top, and the thickness of the wear-resistant transition ring 6 is gradually decreased from bottom to top;
the inner wall of the pump body 1 is provided with a first chromium carbide layer.
In the process of sucking the slurry, the joint of the liquid inlet 4 and the pump body 1 is seriously abraded, so that the abrasion-resistant transition ring 6 is arranged at the joint, so that the abrasion resistance of the joint of the liquid inlet 4 and the pump body 1 can be improved; and the thickness of the wear-resistant transition ring 6 is gradually increased from top to bottom, so that the service life of the wear-resistant transition ring 6 is prolonged.
The first chromium carbide layer is arranged on the inner wall of the pump body 1, and the chromium carbide is a carbide, so that the pump body has good oxidation resistance, corrosion resistance, high hardness and good wear resistance, the wear resistance of the inner wall of the pump body 1 can be improved by the arrangement of the first chromium carbide layer, the wear resistance of the vertical wear-resistant slurry pump is improved, and the service life of the vertical wear-resistant slurry pump is prolonged.
Wherein, the material of the wear-resistant transition ring 6 is wear-resistant ceramic.
Further, in order to reduce the impact of the slurry on the pump body 1 and slow down the abrasion of the slurry on the liquid inlet 4 of the pump body 1, a first semicircular pipeline 41 is arranged on the left side in the liquid inlet 4, and a second semicircular pipeline 42 is arranged on the right side; the first semicircular pipeline 41 is opposite to the opening of the second semicircular pipe; a plurality of pressure springs 43 are uniformly distributed between the outer wall of the first semicircular pipeline 41 and the inner wall of the water inlet and between the outer wall of the second semicircular pipeline 42 and the inner wall of the water inlet; the outer diameters of the first semicircular pipeline 41 and the second semicircular pipeline 42 are gradually decreased from bottom to top to form a circular truncated cone-shaped pipeline. Above-mentioned when the sediment thick liquid inhales, the sediment thick liquid gets into through round platform form pipeline, and when pressure was great, first semi-circular pipeline 41 and second semi-circular pipeline 42 expand through pressure spring 43 respectively, form the buffering, and then can effectively reduce the sediment thick liquid to the impact of inlet 4 with pump body 1 junction, and then reduce wearing and tearing.
It should be noted that, since the slurry directly contacts the first semicircular pipeline 41 and the second semicircular pipeline 42, in order to increase the wear resistance of the first semicircular pipeline 41 and the second semicircular pipeline 42 and prolong the service life of the first semicircular pipeline 41 and the second semicircular pipeline 42, the first semicircular pipeline 41 and the second semicircular pipeline 42 are both wear-resistant pipes.
Further, during the rotation of the impeller 21, because the pressure distribution of the slurry on the impeller 21 is asymmetric, an axial force which is gradually or instantaneously increased is generated, the existence of the axial force is easy to cause the damage of the slurry pump, and in order to reduce or offset the axial force generated during the rotation of the impeller 21, the impeller 21 sequentially comprises a first wheel disc 21, a second wheel disc 22 and a third wheel disc 23 from top to bottom; the middle part of the third wheel disc 23 is provided with a liquid inlet hole; a plurality of blades 24 are uniformly distributed between the third wheel disc 23 and the second wheel disc 22 along the circumferential direction, and a liquid inlet channel is formed between two adjacent blades 24 and the liquid inlet hole; the top surface of the first wheel disc 21 is provided with a plurality of first arc-shaped bulges 25, the first arc-shaped bulges 25 are arrayed on the first wheel disc along the central circle of the first wheel disc, and the bottom surface of the third wheel disc 23 is provided with a plurality of second arc-shaped bulges 26; a plurality of second arcuate projections 26 are provided on the third wheel disc along a central circular array of the third wheel disc. The second wheel disc 22, the blades 24 and the third wheel disc 23 form an impeller 21; the first arc-shaped protrusion 25 and the second arc-shaped protrusion 26 can counteract the axial force generated when the impeller 21 rotates.
Wherein the second disc 22 is larger than the outer diameter of the first disc 21 and equal to the outer diameter of the third disc 23.
The amount of the slurry at the top of the first wheel disc 21 is small, so that the circumferential force generated when the impeller 21 rotates can be improved, the axial force of the impeller 21 is balanced, and the number of the first arc-shaped protrusions 25 is larger than the number of the second arc-shaped protrusions 26.
In order to improve the wear resistance of the first wheel disc 21, the second wheel disc 22, the third wheel disc 23, the blades 24, the first arc-shaped protrusions 25 and the second arc-shaped protrusions 26 and prolong the service life, the first wheel disc 21, the second wheel disc 22, the third wheel disc 23, the blades 24, the first arc-shaped protrusions 25 and the second arc-shaped protrusions 26 are made of hard alloy.
Wherein, the outer surfaces of the first wheel disc 21, the second wheel disc 22, the third wheel disc 23, the blades 24, the first arc-shaped bulges 25 and the second arc-shaped bulges 26 are all provided with a second chromium carbide layer.
It is obvious that the described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Claims (8)
1. A vertical wear-resistant slurry pump comprises a pump body (1), wherein a shaft (3) penetrates through the pump body (1) to enter the pump body (1) and is connected with an impeller (2); a liquid inlet (4) is formed in the bottom of the pump body (1), a liquid outlet bent pipe (5) is arranged on one side of the pump body (1), one end of the liquid outlet bent pipe (5) is communicated with the side wall of the pump body (1), and a liquid outlet is formed in the other end of the liquid outlet bent pipe; the pump is characterized in that a groove is formed at the joint of the liquid inlet (4) and the pump body (1), a wear-resistant transition ring (6) is arranged in the groove, the inner wall of one end of the wear-resistant transition ring (6) is flush with the inner wall of the pump body (1), and the inner wall of the other end of the wear-resistant transition ring is flush with the inner wall of the liquid inlet (4);
the inner diameter of the wear-resistant transition ring (6) is gradually increased from bottom to top, and the thickness of the wear-resistant transition ring (6) is gradually decreased from bottom to top;
the inner wall of the pump body (1) is provided with a first chromium carbide layer.
2. The vertical wear-resistant slurry pump according to claim 1, wherein a first semicircular pipeline (41) is arranged at the left side in the liquid inlet (4), and a second semicircular pipeline (42) is arranged at the right side;
the first semicircular pipeline (41) is opposite to the opening of the second semicircular pipe;
a plurality of pressure springs (43) are uniformly distributed between the outer wall of the first semicircular pipeline (41) and the inner wall of the water inlet and between the outer wall of the second semicircular pipeline (42) and the inner wall of the water inlet;
the outer diameters of the first semicircular pipeline (41) and the second semicircular pipeline (42) are gradually reduced from bottom to top to form a circular truncated cone-shaped pipeline.
3. The vertical wear-resistant slurry pump according to claim 1, wherein the wear-resistant transition ring (6) is made of wear-resistant ceramic.
4. The vertical wear-resistant slurry pump according to claim 1, wherein the impeller (2) comprises a first wheel disc (21), a second wheel disc (22) and a third wheel disc (23) which are arranged from top to bottom in sequence; the middle part of the third wheel disc (23) is provided with a liquid inlet hole; a plurality of blades (24) are uniformly distributed between the third wheel disc (23) and the second wheel disc (22) along the circumferential direction, and liquid inlet channels are formed between the two adjacent blades (24) and the liquid inlet holes; the top surface of the first wheel disc (21) is provided with a plurality of first arc-shaped bulges (25), the first arc-shaped bulges (25) are arranged on the first wheel disc along the central circular array of the first wheel disc, the bottom surface of the third wheel disc (23) is provided with a plurality of second arc-shaped bulges (26), and the second arc-shaped bulges (26) are arranged on the third wheel disc along the central circular array of the third wheel disc.
5. The vertical wear-resistant slurry pump according to claim 4, wherein the second sheave (22) is larger than the outer diameter of the first sheave (21) and equal to the outer diameter of the third sheave (23).
6. The vertical wear-resistant slurry pump according to claim 4, wherein the number of the first arc-shaped projections (25) is smaller than the number of the second arc-shaped projections (26).
7. The vertical wear-resistant slurry pump according to claim 4, wherein the first wheel disc (21), the second wheel disc (22), the third wheel disc (23), the blades (24), the first arc-shaped bulge (25) and the second arc-shaped bulge (26) are all made of hard alloy.
8. The vertical wear-resistant slurry pump according to claim 7, wherein the outer surfaces of the first wheel disc (21), the second wheel disc (22), the third wheel disc (23), the blades (24), the first arc-shaped protrusion (25) and the second arc-shaped protrusion (26) are provided with a second chromium carbide layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021311649.2U CN212774778U (en) | 2020-07-07 | 2020-07-07 | Vertical wear-resisting type sediment stuff pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021311649.2U CN212774778U (en) | 2020-07-07 | 2020-07-07 | Vertical wear-resisting type sediment stuff pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212774778U true CN212774778U (en) | 2021-03-23 |
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ID=75076207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021311649.2U Active CN212774778U (en) | 2020-07-07 | 2020-07-07 | Vertical wear-resisting type sediment stuff pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212774778U (en) |
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2020
- 2020-07-07 CN CN202021311649.2U patent/CN212774778U/en active Active
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