CN106968958B - Adjustable efficient wear-resisting disc device applied to metal lining slurry pump - Google Patents
Adjustable efficient wear-resisting disc device applied to metal lining slurry pump Download PDFInfo
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- CN106968958B CN106968958B CN201710203992.1A CN201710203992A CN106968958B CN 106968958 B CN106968958 B CN 106968958B CN 201710203992 A CN201710203992 A CN 201710203992A CN 106968958 B CN106968958 B CN 106968958B
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- wear
- resistant disc
- impeller
- slurry pump
- metal lining
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D7/00—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts
- F04D7/02—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type
- F04D7/04—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being viscous or non-homogenous
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/007—Details, component parts, or accessories especially adapted for liquid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/086—Sealings especially adapted for liquid pumps
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Paper (AREA)
Abstract
The invention discloses an adjustable high-efficiency wear-resistant disc device applied to a metal lining slurry pump, and relates to the technical field of slurry pump sealing energy-saving devices. The device realizes adjusting the clearance between wear-resisting dish and the impeller at the sediment stuff pump operation in-process, has prolonged the life of impeller and front fender, has reduced the number of times of shutting down greatly, has reduced maintenance and running cost.
Description
Technical Field
The invention relates to the technical field of slurry pump sealing energy-saving devices.
Background
The centrifugal slurry pump is widely applied to industries such as mines, electric power, metallurgy, coal, environmental protection and the like, and is used for conveying slurry containing abrasive solid particles such as silt, ash, concentrate, tailings and the like. Because the operating mode is generally comparatively abominable, the wearing and tearing of sediment stuff pump overflowing parts are comparatively serious, and life is general lower, when increasing the use maintenance cost, has reduced production efficiency and economic benefits. Due to the backflow factor of the inlet end in the operation process of the slurry pump, the abrasion of the overflowing part is the most serious as the impeller and the front guard plate, and the abrasion speed is 2 to 3 times of that of other parts.
The traditional slurry pump has two outstanding problems in structural design aiming at the use condition. Firstly, the method comprises the following steps: the traditional slurry pump adopts angle type sealing between the impeller and the front guard plate, so that the sealing of approximate zero clearance can not be realized, the sealing effect is not ideal, the abrasion is serious after the pump operates for a period of time, the backflow is increased, the pump performance is reduced, the efficiency is reduced, and the power consumption is increased. Secondly, the method comprises the following steps: when the clearance between the impeller and the front guard plate needs to be adjusted, the pump is stopped firstly, the bolt for pressing the bearing assembly is loosened, and the bearing assembly is moved by adjusting the nut on the bolt to adjust the clearance. The adjustment mode has large workload, is very troublesome especially for large pumps, and stops the pumps to interrupt the whole production flow, seriously influences the production efficiency and causes economic loss.
Therefore, how to improve the sealing effect between the impeller and the front guard plate and adjust the gap between the impeller and the front guard plate without stopping the slurry pump is a great technical problem in the structural design of the slurry pump.
Disclosure of Invention
The invention aims to solve the technical problem of providing an adjustable high-efficiency wear-resistant disc device applied to a metal lining slurry pump, which realizes the adjustment of the gap between the wear-resistant disc and an impeller in the operation process of the slurry pump, prolongs the service life of the impeller and a front guard plate, greatly reduces the shutdown frequency and reduces the maintenance and operation cost.
In order to solve the problems, the technical scheme of the invention is that the adjustable high-efficiency wear-resistant disc device is applied to a metal lining slurry pump and comprises an adjustable wear-resistant disc arranged on a front guard plate, the wear-resistant disc is positioned between the front guard plate and an impeller, a cylinder is arranged on the wear-resistant disc, the cylinder is in contact with an adjusting bolt outside a pump body through a hole in the front guard plate, the wear-resistant disc is close to the impeller by means of the pushing of the adjusting bolt and is limited to be far away from the impeller by means of the fixation of a locking nut on the adjusting bolt, and a sealing mechanism is arranged at the hole in the front guard plate.
Preferably, sealing mechanism includes the seal cover, the seal cover is located between cylinder and the apron plate, the seal cover is in on the cylinder and both make up into an organic whole structure, the surface of seal cover is equipped with the annular sealing washer of multichannel, the sealing washer is along the length direction interval distribution of seal cover, the sealing washer extrusion is downthehole at the apron plate, and has suitable compression volume.
Preferably, the cylinder, the sealing sleeve and the sealing ring are combined into an integral structure through a vulcanization process of rubber.
Preferably, the material of the wear-resisting disc is high-chromium cast iron.
Preferably, the adjusting bolt is made of stainless steel.
Preferably, the sealing sleeve is made of elastic rubber.
The adjustable efficient wear-resistant disc device has the advantages that the adjustable efficient wear-resistant disc device can adjust the gap between the wear-resistant disc and the impeller in the operation process of a slurry pump, the service lives of the impeller and the front guard plate are prolonged, the shutdown times are greatly reduced, and the maintenance and operation costs are reduced. The application of the device can ensure that the slurry pump continuously operates at the designed working condition point, and the technical problem that the pump performance is seriously reduced due to the abrasion of the impeller and the front guard plate is solved. The unique sealing mode between the wear-resisting disc and the front guard plate can meet the requirement of conveniently adjusting the wear-resisting disc in the operation process and can also ensure that slag slurry in the pump cavity is not leaked in the use process.
Drawings
FIG. 1 is a schematic view of the present invention;
fig. 2 is a partial structural schematic diagram of fig. 1.
The device comprises a front guard plate 1, a wear-resistant plate 2, an impeller 3, an impeller 5, a cylinder 6, an adjusting bolt 7, a locking nut 8, a sealing sleeve 11 and a sealing ring.
Detailed Description
The invention is described in further detail below with reference to the following figures and detailed description: an adjustable high-efficiency wear-resistant disc device applied to a metal lining slurry pump as shown in fig. 1 and fig. 2 comprises an adjustable wear-resistant disc 2 arranged on a front guard plate 1, wherein the wear-resistant disc 2 is positioned between the front guard plate 1 and an impeller 3, a cylinder 5 is arranged on the wear-resistant disc 2, the cylinder 5 is in contact with an adjusting bolt 6 outside a pump body through a hole in the front guard plate 1, the wear-resistant disc 2 is close to the impeller by means of the pushing of the adjusting bolt 6 and is limited from being far away from the impeller by means of the fixing of a locking nut 7 on the adjusting bolt 6, and a sealing mechanism is arranged at the hole in the front guard plate 1.
Sealing mechanism includes seal cover 8, seal cover 8 is located between cylinder 5 and the apron plate 1, seal cover 8 with cylinder 5 structure as an organic whole, the surface of seal cover 8 is equipped with multichannel annular sealing washer 11, sealing washer 11 is along the length direction interval distribution of seal cover 8, sealing washer 11 extrudees at the downthehole of apron plate 1, and has suitable decrement.
The cylinder 5, the sealing sleeve 8 and the sealing ring 11 are combined into an integral structure through a rubber vulcanization process.
The wear-resisting disc 2 is made of high-chromium cast iron. The adjusting bolt 6 is made of stainless steel. The sealing sleeve 8 is made of elastic rubber.
The front protection plate 1 is embedded with a wear-resistant disc 2, the wear-resistant disc 2 is annular, one surface of the wear-resistant disc is provided with a plurality of uniformly distributed cylinders 5, the front protection plate 1 is provided with a plurality of corresponding holes corresponding to the cylinders 5 of the wear-resistant disc 2, each hole is internally provided with a sealing sleeve 8, the sealing sleeves 8 and the cylinders 5 on the wear-resistant disc 2 are integrated through the rubber vulcanization process, the outer side of each sealing sleeve 8 is provided with a plurality of sealing rings 11, the sealing rings 11 are extruded in the holes on the front protection plate 1 and have proper compression amount to form the sealing effect, the adjusting bolt 6 is provided with a stainless steel locking nut 7, and the inlet end of the impeller 3 is sealed with the end surface of the wear-resistant disc 2 with approximate zero clearance.
The specific use process is that after the slurry pump runs for a period of time, the impeller 3 and the wear-resistant disc 2 are both worn, the backflow at the inlet end is increased, the performance of the slurry pump is reduced, at this time, the wear-resistant disc 2 is slowly close to the impeller 3 by respectively and symmetrically screwing the adjusting bolts 6 to further push the wear-resistant disc 2, when the wear-resistant disc 2 just contacts the upper impeller 3, the adjusting bolts 6 are stopped being screwed, the adjusting bolts 6 are respectively slightly retracted and locked by the locking nuts 7, and the wear-resistant disc 2 can be close to the adjusting bolts 6 under the pressure in the pump cavity. An approximately 'zero clearance' end face seal is still maintained between the impeller 3 and the wear plate 2.
The wear-resistant disc 2 is made of high-chromium cast iron. The sealing mechanism is arranged to ensure that the slag slurry in the pump cavity can not leak when the wear-resisting disc 2 moves forwards.
The adjustable efficient wear-resistant disc device has the advantages that the adjustable efficient wear-resistant disc device can adjust the gap between the wear-resistant disc and the impeller in the operation process of a slurry pump, the service lives of the impeller and the front guard plate are prolonged, the shutdown times are greatly reduced, and the maintenance and operation costs are reduced. The application of the device can ensure that the slurry pump continuously operates at the designed working condition point, and the technical problem that the pump performance is seriously reduced due to the abrasion of the impeller and the front guard plate is solved. The unique sealing mode between the wear-resisting disc and the front guard plate can meet the requirement of conveniently adjusting the wear-resisting disc in the operation process and can also ensure that slag slurry in the pump cavity is not leaked in the use process.
Claims (5)
1. The utility model provides a be applied to high-efficient wear-resisting disc device with adjustable in metal lining sediment stuff pump which characterized by: the device comprises an adjustable wear-resistant disc (2) arranged on a front guard plate (1), wherein the wear-resistant disc (2) is positioned between the front guard plate (1) and an impeller (3), a cylinder (5) is arranged on the wear-resistant disc (2), the cylinder (5) is in contact with an adjusting bolt (6) outside a pump body through a hole in the front guard plate (1), the wear-resistant disc (2) is close to the impeller (3) by means of the pushing of the adjusting bolt (6) and is limited to be away from the impeller (3) by means of the fixation of a locking nut (7) on the adjusting bolt (6), and a sealing mechanism is arranged at the hole in the front guard plate (1); sealing mechanism includes seal cover (8), seal cover (8) are located between cylinder (5) and apron plate (1), seal cover (8) with cylinder (5) structure as an organic whole, the surface of seal cover (8) is equipped with multichannel annular sealing washer (11), sealing washer (11) are along the length direction interval distribution of seal cover (8), sealing washer (11) extrusion is downthehole at apron plate (1) in the front, and has suitable decrement.
2. The adjustable high-efficiency wear-resistant disc device applied to the metal lining slurry pump as claimed in claim 1, wherein: the cylinder (5), the sealing sleeve (8) and the sealing ring (11) are combined into an integral structure through a rubber vulcanization process.
3. The adjustable high-efficiency wear-resistant disc device applied to the metal lining slurry pump as claimed in claim 2, wherein: the wear-resistant disc (2) is made of high-chromium cast iron.
4. The adjustable high-efficiency wear-resistant disc device applied to the metal lining slurry pump as claimed in claim 3, wherein: the adjusting bolt (6) is made of stainless steel.
5. The adjustable high-efficiency wear-resistant disc device applied to the metal lining slurry pump as claimed in claim 4, wherein: the sealing sleeve (8) is made of elastic rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710203992.1A CN106968958B (en) | 2017-03-30 | 2017-03-30 | Adjustable efficient wear-resisting disc device applied to metal lining slurry pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710203992.1A CN106968958B (en) | 2017-03-30 | 2017-03-30 | Adjustable efficient wear-resisting disc device applied to metal lining slurry pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106968958A CN106968958A (en) | 2017-07-21 |
| CN106968958B true CN106968958B (en) | 2023-03-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710203992.1A Active CN106968958B (en) | 2017-03-30 | 2017-03-30 | Adjustable efficient wear-resisting disc device applied to metal lining slurry pump |
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| CN (1) | CN106968958B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2824772T3 (en) * | 2017-11-20 | 2021-05-13 | Sulzer Management Ag | Pump for a fluid |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0636791A1 (en) * | 1993-07-28 | 1995-02-01 | Lucas Industries Public Limited Company | Regenerative pump control |
| CN101664883A (en) * | 2009-08-28 | 2010-03-10 | 沈阳黎明航空发动机(集团)有限责任公司 | Fixture special for mortise of broaching disc type part |
| CN204591250U (en) * | 2015-05-05 | 2015-08-26 | 中国海洋石油总公司 | Rotary movable sealing structure and logger |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2152100Y (en) * | 1992-10-06 | 1994-01-05 | 孙培森 | Slag slurry pump |
| CN2644733Y (en) * | 2003-09-16 | 2004-09-29 | 杨长欣 | Vertical mud sand pump |
| ZA200500984B (en) * | 2004-02-12 | 2005-10-26 | Weir- Envirotech ( Pty) Ltd | Rotary pump |
| CN2802133Y (en) * | 2005-07-05 | 2006-08-02 | 宜兴市宙斯泵业有限公司 | Corrision-resisting, wear-resisting front cover of centrifugal pump |
| CN101153614A (en) * | 2006-09-29 | 2008-04-02 | 上海东方泵业(集团)有限公司 | Adjusting device for half-opened impeller wearing plate |
| CN202790595U (en) * | 2012-08-04 | 2013-03-13 | 昆明理工大学 | Water hydraulic two-way thread throttle valve |
| CA2906777C (en) * | 2013-03-15 | 2018-08-14 | Weir Slurry Group, Inc. | Seal for a centrifugal pump |
| CN206592298U (en) * | 2017-03-30 | 2017-10-27 | 河北技投机械设备有限公司 | A kind of adjustable high-efficiency abrasion-proof disk device applied in metal inner lining Pulp pump |
-
2017
- 2017-03-30 CN CN201710203992.1A patent/CN106968958B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0636791A1 (en) * | 1993-07-28 | 1995-02-01 | Lucas Industries Public Limited Company | Regenerative pump control |
| CN101664883A (en) * | 2009-08-28 | 2010-03-10 | 沈阳黎明航空发动机(集团)有限责任公司 | Fixture special for mortise of broaching disc type part |
| CN204591250U (en) * | 2015-05-05 | 2015-08-26 | 中国海洋石油总公司 | Rotary movable sealing structure and logger |
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| Publication number | Publication date |
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| CN106968958A (en) | 2017-07-21 |
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