A self-suction pump self-stirring wheel for fiber slurry

Abstract

The utility model discloses a kind of fibre slurry self-priming pump self-stirring wheel, including shaft sleeve, at least one front blade is provided in the position of its axial earlier of the shaft sleeve, at least one rear blade is provided in the position of its axial later, the front blade is twisted shape blade, the rear blade is triangular blade shape rear blade, the front blade and rear blade are staggered and set in the circumferential direction of shaft sleeve.The utility model simple structure, reasonable in design, adopt twisted shape front blade design, for liquid inlet chamber deposition stirring and primary conveying induction;Increase liquid inlet chamber area, balance import speed.Adopt triangular blade shape rear blade structure design, leading edge is provided with blade edge, for fiber anti-winding cutting and secondary conveying induction, improve cavitation performance;It is used in the import of various self-priming pump impeller, improve import anti-blocking performance, improve self-priming capacity.

Description

Technical Field

[0001] This utility model relates to the field of self-priming pump technology, and in particular to a self-priming pump and self-stirring wheel for fiber slurry. Background Technology

[0002] In wastewater treatment in industries such as petrochemicals, power, and steel, the conveying medium often contains complex components such as high concentrations of fibers and particulate matter. Fibrous media can easily become entangled in the impeller inlet, causing blockages and reducing the mechanical performance of the pump; hard particles can easily deposit in the pump cavity, exacerbating impeller wear.

[0003] Chinese patent CN201705706U discloses a self-stirring impeller for a submersible sewage pump. Multiple blades are evenly distributed on the outer circumference of the bushing, with the thickness gradually decreasing from the rear to the front of the blades, and a cutting edge forming on the front side facing the direction of blade rotation. This application can only achieve coarse crushing and cannot optimize the flow pattern or improve self-priming capability. Summary of the Invention

[0004] The purpose of this invention is to solve the above-mentioned technical problems and provide a self-priming pump and self-stirring wheel for fiber slurry.

[0005] To achieve the above technical objectives and meet the above technical requirements, the technical solution adopted by this utility model is: a self-priming pump and self-stirring wheel for fiber slurry, including a bushing, wherein at least one front blade is provided at a forward position along the axial direction of the bushing, and at least one rear blade is provided at a rearward position along the axial direction of the bushing, wherein the front blade is a twisted blade for sedimentation and stirring in the liquid inlet chamber and primary conveying induction, and the rear blade is a triangular blade-shaped rear blade for fiber anti-entanglement cutting and secondary conveying induction, wherein the front blade and the rear blade are staggered in the circumferential direction of the bushing.

[0006] Preferably, the front blade includes a blade root fixedly connected to the bushing and a blade tip away from the bushing, and the profile of the front blade has a continuous twisting change from the blade root to the blade tip.

[0007] Preferably, the projection of the rear blade in the direction perpendicular to the rotation axis of the self-stirring wheel is a triangle, and its width gradually narrows from the root near the bushing to the tip away from the bushing.

[0008] Preferably, the rear blade has an arc-shaped cutting edge at its leading edge in the direction of rotation of the self-stirring wheel.

[0009] Preferably, the front blade and the rear blade are evenly distributed along the axial direction of the bushing.

[0010] Compared with traditional structures, this utility model offers the following advantages: It features a simple and rational design, employing a twisted front blade design for sedimentation and agitation in the inlet chamber and primary conveying induction; this increases the inlet chamber area and balances the inlet velocity. The triangular blade-shaped rear blade design, with a cutting edge at the leading edge, is used for fiber anti-entanglement cutting and secondary conveying induction, improving cavitation resistance and increasing the self-priming height by 2-4 meters. It can be widely used in wastewater treatment, slurry particle, and fiber conveying processes in industries such as petrochemicals, power, and steel; and at the impeller inlet of various self-priming pumps, enhancing inlet anti-clogging performance and improving self-priming capability. Attached Figure Description

[0011] Figure 1 This is the front view of the present utility model;

[0012] Figure 2 for Figure 1 The left view;

[0013] In the diagram: 1. Front blade, 2. Bushing, 3. Rear blade. Detailed Implementation

[0014] The present invention will be further described below.

[0015] See attached document Figure 1 A self-priming pump impeller for fiber slurry includes a bushing 2. At least one front blade 1 is provided at a forward position along the axial direction of the bushing 2, and at least one rear blade 3 is provided at a rearward position along the axial direction of the bushing 2. The front blade 1 is a twisted blade used for sedimentation and stirring in the liquid inlet chamber and primary conveying induction. The rear blade 3 is a triangular blade-shaped rear blade used for fiber anti-entanglement cutting and secondary conveying induction. The front blade 1 and the rear blade 3 are staggered in the circumferential direction of the bushing.

[0016] In this preferred embodiment, the front blade 1 includes a blade root fixedly connected to the bushing 2 and a blade tip away from the bushing 2, and the profile of the front blade 1 is continuously twisted from the blade root to the blade tip.

[0017] In this preferred embodiment, the projection of the rear blade 3 in the direction perpendicular to the rotation axis of the self-stirring wheel is a triangle, and its width gradually narrows from the root near the bushing 2 to the tip away from the bushing 2.

[0018] In this preferred embodiment, the rear blade 3 has an arc-shaped cutting edge at its leading edge in the direction of rotation of the self-stirring wheel.

[0019] In this preferred embodiment, the front blade 1 and the rear blade 3 are evenly distributed along the axial direction of the bushing 2.

[0020] In practical implementation, the twisted front blade 1 first acts on the material, using its twisted surface to suck in, initially disperse, and transport the material. The material flow processed by the front blade 1 is directly guided or entrained to the working area of ​​the rear blade 3. The triangular blade-like structure of the rear blade 3 efficiently cuts and crushes the material, reducing the risk of clogging. This two-stage conveying induction further optimizes the flow pattern, improves cavitation resistance, and increases the self-priming height by 2-4 meters. It can be widely used in wastewater treatment, slurry particle, and fiber conveying processes in industries such as petrochemicals, power, and steel. It can also be used at the impeller inlet of various self-priming pumps to improve inlet anti-clogging performance and increase self-priming height capability.

[0021] The above embodiments of this utility model are merely examples to clearly illustrate this utility model, and are not intended to limit the scope of protection of this utility model. All equivalent technical solutions also fall within the scope of this utility model, and the patent protection scope of this utility model should be defined by each claim.

Claims

1. A self-priming pump impeller for fiber slurry, comprising a bushing (2), characterized in that: The bushing (2) has at least one front blade (1) positioned forward along its axial direction and at least one rear blade (3) positioned rearward along its axial direction. The front blade (1) is a twisted blade used for sedimentation and stirring in the liquid inlet chamber and primary conveying induction. The rear blade (3) is a triangular blade-shaped rear blade used for fiber anti-entanglement cutting and secondary conveying induction. The front blade (1) and the rear blade (3) are staggered in the circumferential direction of the bushing.

2. The self-priming pump and self-stirring impeller for fiber slurry according to claim 1, characterized in that: The front blade (1) includes a blade root fixedly connected to the bushing (2) and a blade tip away from the bushing (2), and the profile of the front blade (1) is continuously twisted from the blade root to the blade tip.

3. The self-priming pump and self-stirring impeller for fiber slurry according to claim 1, characterized in that: The projection of the rear blade (3) in the direction perpendicular to the rotation axis of the self-stirring wheel is a triangle, and its width gradually narrows from the root near the bushing (2) to the tip away from the bushing (2).

4. The self-priming pump and self-stirring impeller for fiber slurry according to claim 1, characterized in that: The rear blade (3) has an arc-shaped cutting edge at the leading edge in the direction of rotation of the self-stirring wheel.

5. The self-priming pump and self-stirring impeller for fiber slurry according to claim 1, characterized in that: The front blade (1) and the rear blade (3) are evenly distributed along the axial direction of the bushing (2).

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