Solid-liquid mixing and dispersing equipment
By adding a rotor assembly to the powder feeding path, the design of the inner rotor scraper and the outer rotor eccentric blade, combined with the stator multi-layer through-hole structure, the problems of material agglomeration and poor uniformity are solved, and a highly efficient and uniform solid-liquid mixing effect is achieved.
Patent Information
- Application Number
- CN202520006623.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-02
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2035-01-02
AI Technical Summary
In existing technologies, when venturi tubes are used as mixing devices, materials tend to clump together and have poor uniformity, resulting in poor mixing of fracturing fluid.
A rotor assembly, including an inner rotor and an outer rotor, is added to the powder feeding path. The inner rotor has scraper and dispersing blades, and the outer side has eccentric blades. Through the design of the scraper and dispersing blades and the eccentric blades, combined with the multi-layer through-hole structure on the stator, especially the design of the mixing hole, the efficient mixing of powder and liquid is achieved.
It enables timely processing and leveling of powder materials, ensuring efficient mixing of powder and liquid materials, improving mixing uniformity and quality, avoiding clumping, and outputting high-quality finished product mixtures.
Smart Images
Figure CN223747493U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to material mixing equipment technical field especially a solid liquid mixing dispersion equipment. BACKGROUND
[0002] Fracturing fluid is widely used, and is a proppant conveyed along a fracture formed by high pressure formed by ground equipment and making the ground rupture.
[0003] Fracturing fluid is a mixture with viscosity, which is made by mixing multiple materials. In the prior art, a Venturi tube is often used as a feeding part of a mixing device. However, the use effect of the Venturi structure is poor, and the mixed materials are prone to caking and have poor uniformity. SUMMARY
[0004] In view of the above-mentioned shortcomings in the prior production technology, the present application provides a solid liquid mixing dispersion equipment with a reasonable structure, which adds a rotor assembly on the powder feeding path to improve the degree of material dispersion and optimize the mixing uniformity.
[0005] The technical scheme adopted by the utility model is as follows:
[0006] A solid liquid mixing dispersion equipment includes a feeding pipe and a discharging pipe, and a motor as a stirring power source. The output shaft of the motor drives a rotor assembly, and a stator corresponding to the rotor assembly is fixed on the inner wall of a stirring cavity.
[0007] The rotor assembly includes:
[0008] An inner rotor with a material scraping and dispersing piece, the material scraping and dispersing piece facing the side of the powder feeding direction,
[0009] An outer rotor coaxially arranged with the inner rotor, the outer rotor facing the side of the liquid feeding direction,
[0010] The stator is provided with multiple layers of through holes allowing the material to pass through.
[0011] Further improvement of the above technical scheme:
[0012] The stator is provided with three layers of through holes, and the middle layer of through holes is a mixing hole.
[0013] The diameter of the mixing hole is smaller than that of the through holes of other layers.
[0014] The disc-shaped rotor body of the inner rotor is chamfered at the circumferential contour.
[0015] The chamfers on both sides of the circumferential contour of the inner rotor are symmetrically arranged.
[0016] Both chamfers are directed to the mixing hole, and the mixed powder and liquid material flow through the mixing hole.
[0017] The inner rotor is provided with blades on both sides, and the blades on the side towards the liquid inlet are eccentric blades.
[0018] The outer rotor is provided with single-sided blades.
[0019] The powder feeding pipeline is an inclined pipeline.
[0020] The discharge pipeline is located between the powder feeding path and the liquid material feeding path.
[0021] The beneficial effects of the utility model are as follows:
[0022] The utility model discloses compact structure, reasonable, convenient operation, through the feeding path of powder is additionally provided rotor assembly, and the inner rotor promptly scatters and scrapes the powder of feeding and realizes preliminary processing, and the outer rotor is provided on the feeding path of liquid material on the other side, and the eccentric blade of outer rotor and inner rotor provides negative pressure to liquid material, ensures the efficient mixing of powder and liquid material.
[0023] The utility model also provides a kind of special non-standard stator structure, by increasing through-hole, select specific through-hole as mixing hole, further optimize mixing effect, and between rotor and stator, utilize the chamfer on the rotor drainage guide, ensure that material enters mixing hole and mixes secondly after, as high-uniformity mixture output. DRAWINGS
[0024] Figure 1 It is the whole structure schematic diagram of the utility model, and the mixing part is shown in section in drawing.
[0025] Figure 2 It is the mixing principle structure diagram of the utility model.
[0026] Figure 3 It is the stator structure schematic diagram of the utility model.
[0027] Figure 4 It is the inner rotor structure schematic diagram of the utility model.
[0028] Figure 5 It is the inner rotor another visual angle schematic diagram of the utility model.
[0029] Figure 6 It is the outer rotor structure schematic diagram of the utility model.
[0030] Figure 7 It is the outer rotor another visual angle structure schematic diagram of the utility model.
[0031] Wherein: 1, feeding pipeline;2, discharge pipeline;3, rotor assembly;4, stator;
[0032] 101, powder feeding pipeline;102, liquid feeding pipeline;
[0033] 102, 301, Inner rotor; 302, Scraper and dispersing blade; 303, Eccentric blade; 304, Outer rotor; 305, Chamfer;
[0034] 401, Through hole; 402, Mixing hole. Detailed Implementation
[0035] The specific embodiments of this utility model are described below with reference to the accompanying drawings.
[0036] like Figures 1-7 As shown, the solid-liquid mixing and dispersion device of this embodiment includes a feed pipe 1 and a discharge pipe 2, as well as a motor as a stirring power source. The output shaft of the motor drives a rotor assembly 3, and a stator 4 corresponding to the rotor assembly 3 is fixed on the inner wall of the stirring chamber.
[0037] Rotor assembly 3 includes:
[0038] The inner rotor 301 has a scraper and dispersing blade 302, which faces the powder feeding direction.
[0039] The outer rotor 304 is coaxially arranged with the inner rotor 301, and the outer rotor 304 faces the side in the liquid inlet direction.
[0040] Multiple through holes 401 are provided on the stator 4 to allow material to pass through.
[0041] Three layers of through holes 401 are opened on the stator 4, and the middle layer through hole 401 is a mixing hole 402.
[0042] The diameter of the mixing hole 402 is smaller than the diameter of the through hole 401 in other layers.
[0043] The inner rotor 301 has a chamfer of 305 on the circumferential contour of its disc-shaped rotor body.
[0044] The chamfers 305 on both sides of the circumferential contour of the inner rotor 301 are symmetrically arranged.
[0045] Both chamfers 305 on both sides guide the mixing holes 402, through which the mixed powder and liquid materials flow.
[0046] The inner rotor 301 has blades on both sides, and the blade facing the liquid inlet side is an eccentric blade 303.
[0047] The external rotor 304 has only one side of blades.
[0048] Powder feed pipe 1 is an inclined pipe.
[0049] The discharge pipe 2 is located between the powder feeding path and the liquid material feeding path.
[0050] The specific structure and working principle of the utility model are as follows:
[0051] As Figure 1 Indicated, the power source of the solid-liquid mixing and dispersing equipment is a motor, the output shaft of the motor extends into the mixing cavity, and a rotor assembly 3 is installed on the output shaft, and the inner rotor 301 in the rotor assembly 3 is required to be aligned with the middle one of the mixing holes 402 of the stator 4.
[0052] The feed pipeline 1 is divided into a powder feed pipeline 101 and a liquid feed pipeline 102, and the rotor assembly 3 is located between the powder feed pipeline 1 and the liquid feed pipeline 1, and the powder and liquid materials flow into the mixing cavity respectively and are stirred and dispersed by the rotor assembly 3, and then are output from the discharge pipeline 2.
[0053] The improvement point of the scheme is that the rotor assembly 3 is specially designed to improve the dispersion efficiency and stirring uniformity.
[0054] As Figure 1 And Figure 2 Indicated, in order to improve the dispersion efficiency, the end of the powder feed pipeline 101 is used as the installation position of the rotor assembly 3. The rotor assembly 3 includes an inner rotor 301 and an outer rotor 304, and the reference Figure 4 、 Figure 5 The side of the inner rotor 301 with the material scraping and dispersing blades faces the powder feed, and when the powder enters the powder feed pipeline 101, the material scraping and dispersing blades scatter and remove the agglomerated part of the powder during the falling process, and scrape the powder ready for mixing, thereby achieving the purpose of uniform stirring.
[0055] The outer rotor 304 is installed on the back of the inner rotor 301 and faces the liquid material. The reference Figure 2 And Figure 6 、 Figure 7 The single-sided blade of the outer rotor 304 faces the liquid material, and when rotating, negative pressure is generated to suck the liquid material into the mixing cavity and mix with the powder. In order to further increase the negative pressure, the eccentric blade 303 is arranged on the side of the inner rotor 301 facing the outer rotor 304, and the diameter of the circular arc where the eccentric blade 303 is located is smaller than the diameter of the circular arc where the blade of the outer rotor 304 is located, that is, there are two circles of blades rotating to form greater negative pressure acting on the liquid material.
[0056] Another improvement point of the scheme is the structure of the stator 4. As Figure 3 Indicated, three circles of through holes 401 are formed on the circumferential wall, which is more than the conventional number of holes of the stator 4. Among them, the middle one of the circular through holes 401 has the smallest hole diameter, which is the mixing hole 402, and the mixed powder and liquid are output through the mixing hole 402.
[0057] In order to facilitate the guided flow of the mixture, the referenceFigure 4 and Figure 5 In the inner rotor 301 structure, two symmetrical chamfers 305 are arranged at the disc outer contour of the inner rotor 301, in combination with reference to Figure 2 In the inner rotor 301 structure, two symmetrical chamfers 305 are arranged at the disc outer contour of the inner rotor 301, in combination with reference to
[0058] The advantages of the scheme are that the shear force of the powder feed is increased for scattering, the negative pressure suction force of the liquid material is increased, and the high uniformity material after mixing can pass through the small mixing hole 402 to remove the impurities such as the caked particles, and the high-quality finished product mixture is output after secondary mixing.
[0059] The above description is an explanation of the utility model, not a limitation of the utility model, the range defined by the utility model is referred to the claim, and any form of modification can be made within the protection range of the utility model.
Claims
1. A solid-liquid mixing and dispersing apparatus comprising a feed pipe (1) and a discharge pipe (2), and a motor as a stirring power source, characterized in that: The motor has a rotor assembly (3) on the output shaft, and a stator (4) corresponding to the rotor assembly (3) is fixed on the inner wall of the stirring cavity, The rotor assembly (3) comprises: An inner rotor (301) with a material scraping and scattering piece (302) towards the powder feeding direction, and an outer rotor (304) coaxially arranged with the inner rotor (301) and towards the liquid feeding direction, 2. The solid-liquid mixing and dispersing apparatus according to claim 1, wherein: The stator (4) is provided with three layers of through holes (401) allowing the material to pass through.
3. The solid-liquid mixing and dispersing apparatus according to claim 2, wherein: The middle layer of the through holes (401) is a mixing hole (402).
4. The solid-liquid mixing and dispersing apparatus according to claim 2, wherein: The diameter of the mixing hole (402) is smaller than that of the through holes (401) of other layers.
5. The solid-liquid mixing and dispersing apparatus according to claim 4, wherein: The inner rotor (301) is provided with a chamfer (305) at the circumferential contour of the disc-shaped rotor body.
6. The solid-liquid mixing and dispersing apparatus according to claim 4, wherein: The chamfers (305) on both sides of the circumferential contour of the inner rotor (301) are symmetrically arranged.
7. The solid-liquid mixing and dispersing apparatus according to claim 1, wherein: Both chamfers (305) are directed to the mixing hole (402), and the mixed powder and liquid material flow through the mixing hole (402).
8. The solid-liquid mixing and dispersing apparatus according to claim 1, wherein: The inner rotor (301) is provided with blades on both sides, and the blades towards the liquid feeding side are eccentric blades (303).
9. The solid-liquid mixing and dispersing apparatus according to claim 1, wherein: The outer rotor (304) is provided with only one side of blades.
10. The solid-liquid mixing and dispersing apparatus according to claim 9, wherein: The powder feeding pipeline (1) is an inclined pipeline. The discharge pipeline (2) is located between the powder feeding path and the liquid material feeding path.