Efficient energy-saving dispersion type stirring paddle

Abstract

The utility model relates to the technical field of mixing equipment accessories, and disclose a kind of high-efficient energy-saving dispersion type stirring paddle, including paddle shaft, the outer surface of paddle shaft is symmetrically provided with arc upper paddle, and the arc upper paddle is arc curved sword shape.This high-efficient energy-saving dispersion type stirring paddle, by arc upper paddle, straight plate middle paddle and helical lower paddle three-layer collaborative structure, realize material whole domain dead angle stirring, arc upper paddle is formed horizontal circulation flow with arc curved sword shape to promote upper layer material, avoid surface stagnation;Straight plate middle paddle drives middle layer material up and down convection by inclination angle, promote different area material exchange;Helical lower paddle is upturned with bottom sediment material by reverse helical structure, cooperate the different layout of three, form the complete material circulation link of "upper layer circulation→middle layer mixing→lower layer upsurge", compared with traditional single paddle, dispersion uniformity improves, adapts to multi-viscosity material mixing demand.

Description

Technical Field

[0001] This utility model relates to the technical field of mixing equipment accessories, specifically a high-efficiency and energy-saving dispersing mixing blade. Background Technology

[0002] The mixing blade is the core component of the mixing equipment, and its structural design directly affects the mixing efficiency, dispersion uniformity, and energy consumption of the materials.

[0003] Existing patent document CN214182596U discloses a high-efficiency, low-energy-consumption stirring blade. The first part of this stirring blade is widened to increase the liquid discharge capacity of the root blades. The width of the blades in the second part gradually narrows, and the tilt angle gradually changes from 45° to 18°. As the rotation diameter increases, the linear velocity of the second part of the stirring blade increases while the resistance gradually decreases, resulting in uniform force distribution and liquid discharge across the entire stirring blade. This ensures uniform liquid flow within the tank, improves stirring efficiency, and reduces energy consumption.

[0004] However, existing high-efficiency and energy-saving dispersive impellers are not suitable for achieving full-area mixing and complete material circulation through a layered synergistic structure. Although existing impellers achieve uniform liquid discharge through width gradient and tilt angle adjustment, they are only single-blade structures and cannot form a synergistic effect of "horizontal circulation, vertical convection, and bottom churning" for the characteristics of the upper, middle, and lower layers of materials. It is difficult to avoid stagnation on the surface of the upper layer of materials, and it is not possible to effectively promote regional exchange of materials in the middle layer. Furthermore, it is not possible to churn the bottom sedimented materials upward, making it difficult to form a complete material circulation chain. As a result, the dispersion uniformity is insufficient, and the adaptability to materials with high viscosity is poor, failing to meet the mixing needs of materials at different depths. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] The purpose of this invention is to provide a high-efficiency and energy-saving dispersive stirring blade to solve the problem mentioned in the background art that the existing high-efficiency and energy-saving dispersive stirring blades are not convenient to achieve full-area mixing and complete material circulation through a layered collaborative structure.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency and energy-saving dispersing impeller, comprising an impeller shaft, wherein arc-shaped upper impellers are symmetrically arranged on the outer surface of the impeller shaft, the arc-shaped upper impellers are in the shape of arc-shaped scissors, and their bending direction is consistent with the rotation direction of the impeller shaft; two sets of straight plate middle impellers arranged in a cross shape are arranged on the outer surface of the impeller shaft below the arc-shaped upper impellers, the straight plate middle impellers are in the shape of inclined straight plates; and spiral lower impellers are evenly distributed circumferentially at the bottom end of the outer surface of the impeller shaft, the spiral lower impellers are in the shape of spiral fan blades, and their spiral direction is opposite to the bending direction of the arc-shaped upper impellers.

[0009] As a further improvement to the above scheme, several sets of strip-shaped guide holes are provided on the arc-shaped upper blade, and the several sets of strip-shaped guide holes are evenly arranged along the length direction of the arc-shaped upper blade.

[0010] As a further improvement to the above scheme, the surface of the blade in the straight plate is uniformly raised with several sets of cone-shaped dispersed protrusions, and the bottom edge of the lower spiral blade is fixed with a wear-resistant scraping strip.

[0011] As a further improvement to the above solution, the wear-resistant scraper strip is made of polyurethane, and the length of the wear-resistant scraper strip is consistent with the length of the lower propeller blade.

[0012] As a further improvement to the above solution, a keyway is provided at the top of the blade shaft, and a reinforcing sleeve is fitted on the top of the outer surface of the blade shaft.

[0013] As a further improvement to the above solution, two sets of weight-reducing grooves are symmetrically arranged on the outer wall of the reinforcing sleeve, and the weight-reducing grooves extend along the axial direction of the reinforcing sleeve.

[0014] As a further improvement to the above solution, the blade shaft, the arc-shaped upper blade, the straight middle blade, and the spiral lower blade are all integrally formed from stainless steel and coated with a polytetrafluoroethylene anti-stick coating.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This high-efficiency and energy-saving dispersing impeller achieves all-area mixing of materials without dead zones through a three-layer synergistic structure of an arc-shaped upper impeller, a straight middle impeller, and a spiral lower impeller. The arc-shaped upper impeller pushes the upper material in an arc-shaped blade shape to form a horizontal circulation flow, avoiding surface stagnation; the straight middle impeller drives the middle material to flow vertically through an inclined angle, promoting material exchange between different areas; the spiral lower impeller, with its reverse spiral structure, tumbles the bottom sedimented material upwards. Combined with the differentiated layout of the three, a complete material circulation chain of "upper layer circulation → middle layer mixing → lower layer tumbling" is formed. Compared with traditional single impellers, the dispersion uniformity is improved, and it is suitable for mixing materials with high viscosity.

[0017] 2. This high-efficiency and energy-saving dispersing impeller enhances mixing effect and durability through the functional design of strip-shaped guide holes, conical dispersing protrusions, and wear-resistant scraper bottom strips. The strip-shaped guide holes on the arc-shaped upper impeller reduce fluid resistance while creating local turbulence, enhancing the disturbance of upper layer materials; the conical dispersing protrusions on the straight plate middle impeller precisely break up agglomerated particles, improving the uniformity of middle layer materials; the polyurethane wear-resistant scraper bottom strip on the spiral lower impeller avoids rigid friction at the bottom, extending service life and removing residue from the bottom of the container, solving the problems of traditional impellers that easily accumulate at the bottom and are not thoroughly dispersed.

[0018] 3. This high-efficiency and energy-saving dispersing impeller achieves both energy saving and structural strengthening through structural optimization of the reinforcing sleeve and weight-reducing groove. The reinforcing sleeve enhances the connection strength at the impeller shaft connection, preventing shaft deformation during high-speed rotation. The weight-reducing groove on its outer wall reduces the overall weight while ensuring strength, thus reducing the load on the drive motor. Combined with the drag-reducing design of the strip-shaped guide hole, the overall energy consumption is lower than that of traditional impellers, taking into account both equipment stability and energy-saving requirements. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the three-dimensional structure of the arc-shaped upper blade of this utility model;

[0021] Figure 3 This is an enlarged structural diagram showing a partial detail of the blade in the straight plate of this utility model;

[0022] Figure 4 This is a schematic diagram of the three-dimensional structure of the lower spiral blade of this utility model.

[0023] In the diagram: 1. Blade shaft; 2. Arc-shaped upper blade; 3. Straight blade middle blade; 4. Spiral lower blade; 5. Strip-shaped guide hole; 6. Conical dispersion protrusion; 7. Wear-resistant scraper strip; 8. Keyway; 9. Reinforcing sleeve; 10. Weight reduction groove. Detailed Implementation

[0024] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1 - Figure 4This utility model provides a technical solution: a high-efficiency and energy-saving dispersing impeller, including an impeller shaft 1, with arc-shaped upper impellers 2 symmetrically arranged on the outer surface of the impeller shaft 1. The arc-shaped upper impellers 2 are in the shape of arc-shaped scissors, and their bending direction is consistent with the rotation direction of the impeller shaft 1. Below the arc-shaped upper impellers 2, the outer surface of the impeller shaft 1 is provided with two sets of straight plate middle impellers 3 arranged in a cross shape. The straight plate middle impellers 3 are in the shape of inclined straight plates. The bottom end of the outer surface of the impeller shaft 1 is evenly distributed with spiral lower impellers 4 along the circumference. The spiral lower impellers 4 are in the shape of spiral fan blades, and their spiral direction is opposite to the bending direction of the arc-shaped upper impellers 2.

[0026] After the drive equipment is started, the paddle shaft 1 drives the arc-shaped upper paddle 2, the straight middle paddle 3, and the spiral lower paddle 4 to rotate synchronously. The three layers of paddles work together to achieve efficient dispersion and mixing of materials: When the arc-shaped upper paddle 2 rotates with the shaft, its arc-shaped curved structure is consistent with the direction of rotation, pushing the upper material to form a horizontal circulation flow and avoiding stagnation of surface material; the straight middle paddle 3 rotates at an inclined angle in the middle layer, driving the material to generate vertical convection and promoting the exchange and mixing of upper and lower materials; the spiral lower paddle 4, with its spiral direction opposite to that of the arc-shaped upper paddle 2, tumbles the bottom sedimented material upward when rotating, and the tumbled material is pushed to the middle layer to mix with materials in other areas, achieving full-area mixing of materials without dead corners.

[0027] The upper arc-shaped blade 2 has several sets of strip-shaped guide holes 5, which are evenly arranged along the length of the upper arc-shaped blade 2. The surface of the middle blade 3 of the straight plate has several sets of cone-shaped dispersed protrusions 6 evenly raised. The bottom edge of the lower spiral blade 4 is fixed with a wear-resistant scraper strip 7, which is made of polyurethane and has the same length as the lower spiral blade 4. The top of the blade shaft 1 has a keyway 8, and the top of the outer surface of the blade shaft 1 is fitted with a reinforcing sleeve 9. The outer wall of the reinforcing sleeve 9 has two sets of weight-reducing grooves 10 symmetrically arranged, which extend along the axial direction of the reinforcing sleeve 9. The blade shaft 1, the upper arc-shaped blade 2, the middle blade 3 of the straight plate, and the lower spiral blade 4 are all integrally formed of stainless steel and coated with a polytetrafluoroethylene anti-stick coating.

[0028] When in use, the stirring impeller is connected to the drive unit via the keyway 8 at the top of the impeller shaft 1. After startup, the impeller shaft 1 drives the arc-shaped upper impeller 2, the straight middle impeller 3, and the spiral lower impeller 4 to rotate synchronously. The three layers of impellers work together to achieve efficient dispersion and mixing of materials: the strip-shaped guide holes 5 on the arc-shaped upper impeller 2 allow some materials to pass through the holes, forming local turbulence, which enhances the disturbance of the upper material while reducing fluid resistance and improving mixing efficiency. The conical dispersion protrusions 6 on the surface of the straight middle impeller 3 pierce and break up agglomerated particles in the material during rotation, further improving the dispersion uniformity of the middle material. The polyurethane wear-resistant scraper strip 7 at the bottom of the spiral lower impeller 4 scrapes off the attached material from the bottom of the mixing tank to prevent accumulation. The reinforcing sleeve 9 enhances the structural strength of the impeller shaft 1 connection and prevents deformation during high-speed rotation; the weight-reducing groove 10 on its outer wall reduces the overall weight while ensuring strength, thus reducing drive energy consumption. The one-piece stainless steel structure enhances the overall stability of the equipment, while the PTFE non-stick coating on the surface reduces the adhesion of sticky materials, making subsequent cleaning and maintenance easier.

[0029] Working Principle: During use, the stirring impeller is connected to the drive unit via the keyway 8 at the top of the impeller shaft 1. After startup, the impeller shaft 1 drives the arc-shaped upper impeller 2, the straight-plate middle impeller 3, and the spiral lower impeller 4 to rotate synchronously. The three layers of impellers work together to achieve efficient dispersion and mixing of materials: When the arc-shaped upper impeller 2 rotates with the shaft, its arc-shaped curved structure is aligned with the direction of rotation, pushing the upper layer of material to form a horizontal circulating flow, preventing surface material from stagnating; the strip-shaped guide holes 5 on the blades allow some material to pass through the holes, forming local turbulence, enhancing the disturbance of the upper layer of material while reducing fluid resistance and improving mixing efficiency. The straight-plate middle impeller 3 rotates at an inclined angle in the middle layer, driving the material to generate vertical convection, promoting the exchange and mixing of upper and lower layers of material; the conical dispersion protrusions 6 on the surface pierce and break up agglomerated particles in the material during rotation, further improving the dispersion uniformity of the middle layer of material. The lower spiral blade 4, with its spiral direction opposite to that of the upper arc-shaped blade 2, churns up the settled material at the bottom during rotation. This, combined with the wear-resistant polyurethane scraper 7 at the bottom, scrapes away adhering material from the bottom of the mixing tank, preventing accumulation. The churned material is pushed to the middle layer to mix with materials from other areas. The reinforcing sleeve 9 enhances the structural strength of the blade shaft 1 connection, preventing deformation during high-speed rotation. Its outer wall features weight-reducing grooves 10 that reduce overall weight while maintaining strength, thus reducing drive energy consumption. The one-piece stainless steel structure improves the overall stability of the equipment, and the PTFE anti-stick coating reduces the adhesion of sticky materials, facilitating subsequent cleaning and maintenance. Through the synergistic action of the three blade layers, a complete material circulation cycle is formed: "upper layer circulation → middle layer dispersion → lower layer churning," achieving comprehensive, dead-angle-free mixing of materials, improving dispersion efficiency while reducing energy consumption.

[0030] Finally, it should be noted that the above content is only used to illustrate the technical solution of this utility model, and is not intended to limit the scope of protection of this utility model. Simple modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model do not depart from the essence and scope of the technical solution of this utility model.

Claims

1. A high-efficiency, energy-saving, dispersing impeller, comprising an impeller shaft (1), characterized in that: The outer surface of the blade shaft (1) is symmetrically provided with arc-shaped upper blades (2). The arc-shaped upper blades (2) are in the shape of arc-shaped scimitars, and their bending direction is consistent with the rotation direction of the blade shaft (1). The outer surface of the blade shaft (1) is located below the arc-shaped upper blades (2), and two sets of straight blades (3) are arranged in a cross shape. The straight blades (3) are in the shape of inclined straight blades. The bottom end of the outer surface of the blade shaft (1) is evenly distributed with spiral lower blades (4) along the circumference. The spiral lower blades (4) are in the shape of spiral fan blades, and their spiral direction is opposite to the bending direction of the arc-shaped upper blades (2).

2. The high-efficiency, energy-saving, dispersing impeller according to claim 1, characterized in that: The arc-shaped upper blade (2) is provided with several sets of strip-shaped guide holes (5), and the several sets of strip-shaped guide holes (5) are evenly arranged along the length direction of the arc-shaped upper blade (2).

3. The high-efficiency, energy-saving, dispersing impeller according to claim 1, characterized in that: The surface of the blade (3) in the straight plate is uniformly raised with several sets of cone-shaped dispersed protrusions (6), and the bottom edge of the spiral blade (4) is fixed with a wear-resistant scraping strip (7).

4. The high-efficiency, energy-saving, dispersing impeller according to claim 3, characterized in that: The wear-resistant scraper (7) is made of polyurethane, and the length of the wear-resistant scraper (7) is the same as the length of the lower propeller blade (4).

5. The high-efficiency energy-saving dispersing impeller according to claim 1, characterized in that: The top end of the blade shaft (1) is provided with a keyway (8), and the top of the outer surface of the blade shaft (1) is fitted with a reinforcing sleeve (9).

6. The high-efficiency, energy-saving, dispersing impeller according to claim 5, characterized in that: The outer wall of the reinforcing sleeve (9) is symmetrically provided with two sets of weight-reducing grooves (10), which extend along the axial direction of the reinforcing sleeve (9).

7. The high-efficiency, energy-saving, dispersing impeller according to claim 1, characterized in that: The blade shaft (1), the arc-shaped upper blade (2), the straight middle blade (3) and the spiral lower blade (4) are all integrally formed of stainless steel and coated with polytetrafluoroethylene anti-stick coating.

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