CN212774906U

CN212774906U - Novel impeller structure of slurry pump

Info

Publication number: CN212774906U
Application number: CN202021285098.7U
Authority: CN
Inventors: 杨军
Original assignee: Hebei Tengda Pump Valve Co ltd
Current assignee: Hebei Tengda Pump Valve Co ltd
Priority date: 2020-07-04
Filing date: 2020-07-04
Publication date: 2021-03-23
Anticipated expiration: 2030-07-04

Abstract

The utility model provides a novel slurry pump impeller structure relating to the field of slurry pump equipment, which comprises an impeller main disc and an impeller auxiliary disc, wherein a connecting seat connected with a main shaft is arranged at the center of the impeller main disc, a feeding hole is arranged at the center of the impeller auxiliary disc, and a plurality of guide blades are arranged between the impeller main disc and the impeller auxiliary disc; the utility model discloses an impeller master, impeller auxiliary, guide blade can dismantle the connection, carry out spacing reinforcement to guide blade position through setting up the fixing base, make the guide blade not fragile. The detachable structure makes each guide blade all can change alone, need not to change whole impeller, convenient operation, reduce cost.

Description

Novel impeller structure of slurry pump

Technical Field

The utility model belongs to the technical field of sediment stuff pump equipment and specifically relates to a novel sediment stuff pump impeller structure.

Background

The slurry pump is a centrifugal pump which is advanced and developed in recent years due to larger material transportation particles and has higher efficiency and stronger performance. The slurry pump is a machine which increases the energy of solid-liquid mixed medium by the action of centrifugal force. The slurry pump has wide application field, and is widely suitable for conveying abrasive or corrosive slurry containing solid particles in the industries of mines, metallurgy, electric power, coal, chemical industry, building materials, flue gas desulfurization, denitration systems and the like. Such as ore pulp conveying in metallurgical ore dressing plant, hydraulic ash removal in thermal power plant, coal slurry and heavy medium conveying in coal washing plant, dredging river, etc. In the chemical industry, corrosive slurries containing crystals can also be transported. The service life of the slurry pump is a key basis for measuring the product level.

The most important component in slurry pumps is the impeller, which is a rotating body with blades that imparts energy to the liquid. The impeller of present sediment stuff pump is direct fixed as an organic whole through the rotation axis of fixing bolt and sediment stuff pump bottom, leads to big in the degree of difficulty of the dismantlement in later stage, is unfavorable for daily management and maintenance, often a blade takes place the problem and can lead to whole impeller unable use to bring great work load and increased unnecessary manufacturing cost.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a novel sediment thick liquid pump impeller structure to solve the problem that current sediment thick liquid pump impeller fragile, inconvenient maintenance.

The utility model discloses a realize like this: a novel impeller structure of a slurry pump comprises an impeller main disc and an impeller auxiliary disc, wherein a connecting seat connected with a main shaft is arranged at the center of the impeller main disc, a feeding hole is formed in the center of the impeller auxiliary disc, and a plurality of material guide blades are arranged between the impeller main disc and the impeller auxiliary disc;

the main body of the guide blade is arc-shaped sheet, a fixed block is arranged at the inner end of the guide blade and is fixedly connected with the connecting seat through the fixed block, the inner wall of the fixed block is an arc-shaped surface with the same radian as the outer wall of the connecting seat, the inner wall of the fixed block is attached to the outer wall of the connecting seat, and the fixed block is connected with the connecting seat through a bolt;

the main body of the guide blades extends outwards based on the fixing block, a fan-shaped space is formed between every two adjacent guide blades, a first threaded hole and a second threaded hole are formed in the main body of each guide blade, a third threaded hole corresponding to the first threaded hole is formed in the impeller main disc, a fourth threaded hole corresponding to the second threaded hole is formed in the impeller auxiliary disc, and the guide blades are connected with the impeller main disc and the impeller auxiliary disc through bolts respectively.

Preferably, the connecting seat is inwards sunken based on the impeller main disc, and the outer wall of the connecting seat is arc-surface-shaped.

Preferably, the inner arc-shaped surface of the material guide blade is provided with a wear-resistant structure.

Preferably, the wear-resistant structure is a wear-resistant layer sintered on the inner arc-shaped surface of the main body of the guide vane.

Preferably, the wear-resistant structure is a wear-resistant sheet fixedly arranged on the inner arc-shaped surface of the guide vane through a bolt.

Preferably, a material passing hole is formed in the main body of the material guide vane. Preferably, the outer side surfaces of the impeller main disc and the impeller auxiliary disc are both of a plane structure.

After all the guide blades are installed, the fixing blocks are spliced into a hollow ring shape wrapping the outer part of the connecting seat.

Adopt above-mentioned technical scheme, the utility model discloses an impeller master, impeller auxiliary, guide blade can dismantle the connection, carries out spacing reinforcement to guide blade position through setting up the fixing base, makes the guide blade not fragile. The detachable structure makes each guide blade all can change alone, need not to change whole impeller, convenient operation, reduce cost.

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 side view of the present invention;

fig. 2 is a schematic structural view of the impeller main disc of the present invention;

fig. 3 is a schematic structural view of the material guiding blade of the present invention.

In the figure: 1-impeller main disc, 2-impeller auxiliary disc, 3-connecting seat, 4-feed inlets, 5-guide blades, 6-fixed block, 7-arcwall face, 8-fan-shaped space, 9-first screw hole, 10-second screw hole, 11-third screw hole, 12-fourth screw hole, 13-wear-resisting structure, 14-punishment in advance hole.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in 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. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

As shown in fig. 1-3, the utility model provides a novel sediment thick liquid pump impeller structure, including impeller main disc 1, impeller auxiliary disc 2, be provided with the connecting seat 3 of being connected with the main shaft at the center of impeller main disc 1, preferably, connecting seat 3 is inwards sunken based on impeller main disc 1, and the outer wall of connecting seat 3 is the cambered surface form. A feed inlet 4 is arranged at the center of the impeller auxiliary disc 2, and a plurality of guide vanes 5 are arranged between the impeller main disc 1 and the impeller auxiliary disc 2. The slurry enters the pump body through the feed inlet 4, the impeller rotates at a high speed under the drive of the rotating shaft, the slurry is driven by the material guide blades 5, and the rotating slurry flies out of the impeller under the action of centrifugal force. After the slurry in the pump is thrown out, the central part of the impeller forms a vacuum area, and the slurry is pressed into the feeding pipe through the pipe network under the action of atmospheric pressure (or water pressure), so that continuous feeding can be realized without circulation, and the lift and flow required by process design are achieved.

The utility model discloses a main part of guide blade 5 is arc slice, and the inner of guide blade 5 is provided with fixed block 6 and through fixed block 6 and connecting seat 3 fixed connection, and the inner wall of fixed block 6 sets up to the arcwall face 7 the same with the outer wall radian of connecting seat 3, and the inner wall laminating of fixed block 6 is on the outer wall of connecting seat 3, and fixed block 6 passes through the bolt and is connected with connecting seat 3. The connected mode of common blade and connecting seat is integrated into one piece or, or mutual independence does not connect, and whole impeller, with high costs need to be changed when a blade appears damaging to the first condition. In the second situation, the blades are not in contact with the connecting seat, so that the blades are easy to displace due to stress when the blades are used for stirring slag slurry, the function of a pump is influenced, the efficiency is reduced, and the impeller is easy to damage. The utility model discloses a fixed block 6 of the inner of guide blade 5 can closely laminate and pass through bolted connection with the outer wall of connecting seat 3, and the installation of whole guide blade 5 is accomplished the back, and 6 amalgamations of its fixed block are for wrapping up in the hollow ring-type of connecting seat 3 outsides. The fixing block 6 provides sufficient supporting force for the guide blades 5, the guide blades 5 are not prone to shifting in the high-speed operation process, when one guide blade 5 is damaged, only the guide blade 5 needs to be taken down for replacement, integral replacement is not needed, and cost is saved.

The utility model discloses a main part of guide blade 5 is based on fixed block 6 is outwards extended, form fan-shaped space 8 between the adjacent guide blade 5, be provided with first screw hole 9 and second screw hole 10 in the main part of guide blade 5, be provided with the third screw hole 11 corresponding with first screw hole 9 position on impeller main disc 1, be provided with fourth screw hole 12 corresponding with second screw hole 10 position on impeller auxiliary disc 2, guide blade 5 and impeller main disc 1, impeller auxiliary disc 2 passes through bolted connection respectively. The guide blades 5 are detachably connected with the impeller main disc 1 and the impeller auxiliary disc 2, and similarly, when the guide blades are damaged, only the bolts need to be unscrewed, and the corresponding guide blades 5 are taken down, so that the whole device does not need to be replaced.

Further, the main part of guide blade includes interior arcwall face and outer arcwall face, the utility model discloses be provided with wear-resisting structure 13 on the interior arcwall face of guide blade 5, it is preferred, wear-resisting structure can be the wearing layer of sintering on the interior arcwall face of guide blade 5, for example the carborundum wearing layer. Or wear-resistant pieces fixedly arranged on the inner arc-shaped surface of the guide vanes 5 through bolts. Due to the arrangement of the wear-resistant structure, the wear of the material guide vanes 5 is reduced, and the service life of the material guide vanes 5 can be greatly prolonged.

Further, a material passing hole 14 is provided on the main body of the guide vane 5. The material passing hole 14 has the function that during the working process, the slurry can pass through the material passing hole 14, and the guide vane 5 can be prevented from being damaged due to overlarge stress.

Furthermore, the outer side surfaces of the impeller main disc 1 and the impeller auxiliary disc 2 are both of a plane structure.

The utility model discloses an impeller master, impeller auxiliary, guide blade can dismantle the connection, carry out spacing reinforcement to guide blade position through setting up the fixing base, make the guide blade not fragile. The detachable structure makes each guide blade all can change alone, need not to change whole impeller, convenient operation, reduce cost.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present invention.

Claims

1. A novel impeller structure of a slurry pump is characterized by comprising an impeller main disc and an impeller auxiliary disc, wherein a connecting seat connected with a main shaft is arranged at the center of the impeller main disc, a feeding hole is formed in the center of the impeller auxiliary disc, and a plurality of guide blades are arranged between the impeller main disc and the impeller auxiliary disc;

2. The impeller structure of a slurry pump as claimed in claim 1, wherein the connecting seat is recessed inward based on the main disk of the impeller, and the outer wall of the connecting seat is arc-shaped.

3. The impeller structure of a slurry pump as claimed in claim 2, wherein the inner arc surface of the guide vane is provided with a wear-resistant structure.

4. The impeller structure of a slurry pump as claimed in claim 3, wherein the wear-resistant structure is a wear-resistant layer sintered on the inner arc surface of the main body of the guide vane.

5. The impeller structure of the slurry pump as claimed in claim 3, wherein the wear-resistant structure is a wear-resistant plate fixed on the inner arc surface of the guide vane by a bolt.

6. The impeller structure of slurry pump as claimed in claim 1, wherein the main body of the guide vane is provided with a material passing hole.

7. The novel impeller structure of the slurry pump as claimed in claim 1, wherein the outer side surfaces of the main impeller disk and the auxiliary impeller disk are both planar structures.

8. The impeller structure of a slurry pump as claimed in claim 1, wherein after all the guide vanes are installed, the fixing blocks are spliced into a hollow ring shape wrapping the outside of the connecting base.