Centrifugal negative pressure type raw wool primary cleaning device
By combining negative pressure low-temperature boiling and centrifugal degassing technology, the problem of residual ultra-micro air bubbles in wool fibers is solved, improving the cleaning effect and subsequent fiber quality, and ensuring the cleaning quality and processing performance of raw wool.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XINJIANG AGRI UNIV
- Filing Date
- 2025-04-07
- Publication Date
- 2026-05-15
AI Technical Summary
During the raw wool cleaning process, the ultra-micro air bubbles remaining inside the wool fibers affect the permeability of the cleaning solution, resulting in reduced cleaning effectiveness and potentially causing quality problems in subsequent tests or processing.
Using negative pressure low-temperature boiling and centrifugal degassing technology, ultra-micro bubbles are discharged from the fibers through a centrifugal negative pressure primary cleaning device. The low-temperature boiling under negative pressure enhances the fluid shear force to break the adhesion between the bubbles and the fibers, and the bubbles are discharged by centrifugal force.
It improves the washing and degreasing rate of raw wool, ensuring the quality of subsequent tests or processing, while reducing the damage of high temperature to fibers. The device has a compact structure, making it easy to use and transport.
Smart Images
Figure CN224243300U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of raw wool cleaning technology, and in particular relates to a centrifugal negative pressure primary cleaning device for raw wool. Background Technology
[0002] During the raw wool washing process, some ultra-micro air bubbles may remain inside the wool fibers. These bubbles may originate from the following three mechanisms:
[0003] Fluid dynamics
[0004] The mechanical agitation and turbulent motion of the cleaning fluid can cause gas to be entrained into the liquid phase, forming micron-sized bubbles. As these bubbles migrate between fiber bundles, they may be trapped by the complex surface structure of the wool cuticle layer. Especially in the root region where fibers are tightly packed, bubbles are more easily mechanically trapped in the interfiber gaps.
[0005] Interface barrier effect
[0006] The inherent grease (lanolin) on the surface of wool and the impurities adhering to it form a hydrophobic interface barrier. The presence of this interface layer significantly reduces the wetting efficiency of the cleaning solution. When the contact angle θ > 90°, the liquid cannot completely replace the air in the fiber pores, thus forming a gas-liquid two-phase retention zone at the fiber-liquid interface.
[0007] Capillary reverse pressure phenomenon
[0008] The microporous structure (approximately 0.1-10 μm in diameter) inside wool fibers generates significant capillary pressure. According to the Washburn equation, the liquid permeation rate is inversely proportional to the square of the pore size. When the external pressure is insufficient to overcome capillary resistance, the gas within the micropores cannot be completely expelled, forming metastable bubbles.
[0009] If these air bubbles remain inside the fibers, they will affect the permeability of the cleaning solution, reduce the cleaning effect, and may even lead to other related technical quality problems in subsequent tests (inspection / detection / testing / identification, etc.) or processing (such as dyeing, spinning). Utility Model Content
[0010] The purpose of this invention is to provide a centrifugal negative pressure primary cleaning device for raw wool. This device uses negative pressure low-temperature boiling and centrifugal defoaming technology to remove ultra-micro bubbles hidden in the raw wool fibers, reducing the impact of bubbles on the permeability of the cleaning solution in the raw wool fibers, improving the cleaning rate of the raw wool, and also helping to improve its subsequent degreasing rate, thus ensuring the quality of subsequent raw wool testing or processing.
[0011] This application provides a centrifugal negative pressure primary cleaning device for raw wool, comprising a main body and a cover. The main body is provided with a heating baffle, which divides the inner cavity of the main body into a cleaning chamber and an electrical chamber. The cleaning chamber contains a cleaning screen, the outer diameter of which is smaller than the inner wall of the cleaning chamber, forming a liquid passage gap between them. At the same time, the cleaning chamber has a drain port near the bottom that communicates with the liquid passage gap. The electrical chamber contains a drive motor assembly, which passes through the heating baffle and is connected to the cleaning screen via a bearing seat to drive the cleaning screen to rotate. The cover can be closed on the upper end of the main body, and the cover is provided with a liquid inlet and a negative pressure suction port.
[0012] As a preferred embodiment of this application: the inner side of the cover has a double-ring structure including an outer ring and an inner ring, and a liquid inlet channel is formed between the inner ring and the outer ring; the inner ring is provided with a bearing, and the inner ring can be rotated relative to the upper end of the cleaning screen barrel to cover it, and the outer ring can be covered with the upper end of the body to seal it.
[0013] As a preferred embodiment of this application: the liquid inlet channel has a ring-shaped structure, and multiple sets of nozzles connected to the liquid inlet are arranged inside it.
[0014] As a preferred embodiment of this application, the heating partition includes heating components evenly distributed on the heating partition.
[0015] As a preferred embodiment of this application: the heating component is at least one of a resistance heater or a carbon-based heating unit, and the heating partition is provided with a sinking trough on the side near the cleaning chamber, and the heating component is encapsulated in the sinking trough.
[0016] As a preferred embodiment of this application: the outer wall of the washing screen is provided with multiple sets of holes arranged from bottom to top, and the diameter of the holes is 1.5–2.5 mm.
[0017] As a preferred embodiment of this application: the cleaning chamber is located above the electrical chamber, and the main body is provided with a heat dissipation vent at a position corresponding to the electrical chamber.
[0018] As a preferred embodiment of this application, the width of the liquid passage gap is 2-5 cm.
[0019] As a preferred embodiment of this application, the drive motor assembly includes an ABB M3BP series permanent magnet synchronous motor.
[0020] Compared to existing technologies, the advantages of this application are:
[0021] This application's solution mainly comprises a main body and a cover. The cover is used to seal the main body and has a liquid inlet and a negative pressure suction port. The liquid inlet is used to introduce cleaning fluid into the main body, and the negative pressure suction port is used to create a negative pressure environment within the main body, thereby utilizing the negative pressure low-temperature boiling effect to precipitate ultra-micro bubbles within the raw wool fibers. In addition, the main body contains a cleaning sieve and a drive motor assembly for rotating the cleaning sieve, using centrifugal force to discharge the precipitated micro bubbles with the cleaning fluid. It can be seen that this solution's device, employing negative pressure low-temperature boiling and centrifugal degassing technology, can remove ultra-micro bubbles hidden within the raw wool fibers, reducing the impact of bubbles on the permeability of the cleaning fluid in the raw wool fibers. At the same time, it also reduces the damage to the raw wool fibers caused by high temperatures, improves the washing and degreasing rates of the raw wool, and ensures the quality of subsequent raw wool testing or processing. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the main structure of the centrifugal negative pressure primary cleaning device for raw wool provided in this embodiment.
[0023] Figure 2 This is a partial cross-sectional view of the centrifugal negative pressure primary cleaning device for raw wool provided in this embodiment.
[0024] Figure 3 Provided for this embodiment Figure 2 A magnified view of a portion of point A in the middle.
[0025] Figure 4 This is a cross-sectional structural diagram of the cover provided in this embodiment.
[0026] Figure 5 This is a schematic diagram of the internal structure of the cover provided in this embodiment.
[0027] mark
[0028] 1. Body, 2. Cover, 3. Cleaning chamber, 4. Electrical chamber, 5. Liquid passage gap, 6. Drain port, 7. Drive motor assembly, 81. Heating baffle, 82. Heating component, 9. Bearing seat, 10. Liquid inlet, 11. Negative pressure suction port, 12. Outer ring, 13. Inner ring, 14. Nozzle, 15. Heat dissipation port, 16. Negative pressure system, 17. Bearing, 18. Cleaning screen, 19. Hole, 20. Barrier pad. Detailed Implementation
[0029] The present invention will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be emphasized that the following description is merely exemplary and not intended to limit the scope and application of the present invention.
[0030] In the description of this utility model, it should be understood that the terms "upper end", "bottom", "upper", "lower", "outer side", "inner side", etc., which indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or mechanism referred to must have a specific orientation, be constructed or operated in a specific orientation, and therefore should not be construed as a limitation on this utility model; at the same time, in the description of this utility model, the meaning of "at least" includes one, two, and more than two.
[0031] In this utility model, unless otherwise explicitly specified and limited, the terms "fixed", "connected", "installed", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, a relative rotatable connection, an integral connection, a direct connection, or an indirect connection through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.
[0032] like Figure 1-2As shown, this embodiment provides a centrifugal negative pressure primary cleaning device for raw wool. The device includes a main body 1 and a cover 2. In this embodiment, the main body 1 is a columnar structure with a diameter ranging from 0.8 to 1.5 m and a height ranging from 2.5 to 5.0 m. This size ensures that the raw wool remains within it for a sufficient time while preventing fiber blockage. A heating baffle 81 is provided inside the main body 1, dividing the inner cavity into a cleaning chamber 3 and an electrical chamber 4, and heating the cleaning fluid in the cleaning chamber 3. In this embodiment, the cleaning chamber 3 is located above the electrical chamber 4. The cleaning chamber 3 contains a cleaning screen 18. It is understood that the cleaning screen 18 should have multiple sets of holes 19 for the cleaning fluid to enter and exit. Preferably, in this embodiment, the outer wall of the cleaning screen 18 has multiple sets of holes 19 arranged from bottom to top, with the hole diameter ranging from 1.5 to 2.5 mm. mm; the outer diameter of the cleaning screen 18 is smaller than the inner wall of the cleaning chamber 3, forming a liquid passage gap 5 between them. The width of the liquid passage gap 5 is preferably 2-5 cm. This liquid passage gap 5 ensures the normal rotation of the cleaning screen 18 on the one hand, and facilitates the slow injection of cleaning liquid into the cleaning screen 18 through the holes 19 on the other hand, so as to improve the permeability between the cleaning liquid and the raw wool fibers, ensuring that the cleaning liquid and the raw wool fibers are in full and uniform contact. The cleaning chamber 3 is provided with a drain port 6 near the bottom, which communicates with the liquid passage gap 5. The cleaning liquid after cleaning can be discharged through the drain port 6. The electrical chamber 4 has a built-in drive motor assembly 7, which drives... The motor assembly 7 passes through the heating partition 81 and is connected to the cleaning screen 18 via the bearing seat 9 to drive the cleaning screen 18 to rotate at high speed and discharge the cleaning liquid under centrifugal force. Understandably, a sealing gasket should be provided at the point where the cleaning chamber 3 and the electrical chamber 4 pass through to prevent the cleaning liquid from leaking into the electrical chamber 4. The cover 2 can be closed on the upper end of the body 1 to seal the body 1. The cover 2 is provided with a liquid inlet 10 and a negative pressure suction port 11. The liquid inlet 10 can be connected to an external liquid supply system to provide sufficient cleaning liquid into the body 1. The negative pressure suction port 11 can be connected to an external negative pressure system 16 to create a negative pressure state inside the body 1.
[0033] Specifically, first, cover the upper part of the body 1 containing the raw wool with the cover 2 to seal the body 1, and then connect the liquid inlet 10 and the negative pressure suction port 11 to the corresponding liquid supply system and negative pressure system 16, respectively. Then, start the negative pressure system 16 to create a suitable negative pressure environment inside the body 1, for example, reduce it to 10–30. At the same time, the liquid supply system is activated to slowly inject a certain amount of cleaning liquid into the main body 1. In this embodiment, the cleaning liquid can be directly injected into the cleaning screen 18, or it can be injected into the liquid passage 5 first and slowly seep into the cleaning screen 18 through the holes 19. This embodiment prefers the latter, which is conducive to the cleaning liquid fully contacting the raw wool, and thus facilitates the cleaning liquid fully penetrating into the raw wool fibers. After all the raw wool has fully contacted the cleaning liquid, the heating baffle 81 is activated to heat the cleaning liquid. If necessary, the drive motor assembly 7 can be activated to drive the cleaning screen 18 to rotate to achieve the effect of stirring the raw wool and thus improve the uniformity of the cleaning liquid temperature distribution. As is known, under negative pressure, the cleaning liquid can reach the boiling state at a lower temperature. In the boiling state, the liquid turbulence is enhanced, and the shear force destroys the adhesion between the bubbles and the fibers. At this time, the bubbles migrate to the raw wool. Under low-temperature boiling, the ultra-microbubbles hidden within the raw wool fibers are expelled through fluid shear mechanics. Finally, the drive motor assembly 7 is activated to rotate the cleaning screen 18 vertically, generating centrifugal force. This centrifugal force simultaneously ejects the cleaning liquid and the migrated bubbles from the cleaning screen 18 through the holes 19 and discharges them through the drain port 6. As can be seen, this embodiment of the device uses negative pressure low-temperature boiling and centrifugal degassing technology to expel the ultra-microbubbles hidden within the raw wool fibers, reducing the impact of bubbles on the permeability of the cleaning liquid in the raw wool fibers. At the same time, it also reduces the damage to the raw wool fibers caused by high temperature, improves the washing rate and degreasing rate of the raw wool, and ensures the quality of subsequent tests or processing of the raw wool. In addition, this embodiment of the device has a compact structure and high integration, making it easy to use in a small space and easy to transport.
[0034] like Figure 4-5 The diagram shows the structure of the cover 2 provided in this embodiment. The inner side of the cover 2 is a double-ring structure including an outer ring 12 and an inner ring 13, and a liquid inlet channel is formed between the inner ring 13 and the outer ring 12. As shown in 4, the inner ring 13 and the outer ring 12 form liquid passage channels at the top and sides of the cover 2. That is, the design of the inner ring 13 and the outer ring 12 makes the cover 2 a sandwich structure. The inner ring 13 is provided with a bearing 17. The inner ring 13 can be rotated relative to the upper end of the cleaning screen 18 to close the cover. The outer ring 12 can be closed to the upper end of the body 1 to seal the cover.
[0035] Specifically, the inner side of the cover 2 is designed with a double-locking groove structure. The double-locking groove can seal the openings at the upper end of the main body 1 and the upper end of the cleaning screen 18 respectively. The cover 2 with this structure can seal the cleaning screen 18 to prevent the raw wool from being thrown into the liquid gap 5 during rotation. On the other hand, it can limit the position of the cleaning screen 18 to prevent the upper end of the cleaning screen 18 from swinging too much during rotation, which would damage the bearing seat 9.
[0036] As a preferred embodiment, the liquid inlet channel has an annular structure, and multiple sets of nozzles 14 connected to the liquid inlet 10 are arranged inside it. These multiple sets of nozzles 14 can directly and slowly inject the cleaning liquid into the liquid passage gap 5, ensuring that the cleaning liquid fully contacts the raw wool through the hole 19 and fully and evenly penetrates into the fiber interior, avoiding the phenomenon of uneven cleaning of raw wool and easy damage to fibers caused by directly injecting the cleaning liquid into the raw wool storage chamber in the traditional way.
[0037] In a preferred embodiment, the heating partition 81 includes heating components 82 uniformly distributed on the heating partition 81. The heating components 82 are at least one of a resistance heater or a carbon-based heating unit, both of which are designed for use under negative pressure. A recessed groove is provided on the side of the heating partition 81 near the cleaning chamber 3, and the heating components 82 are encapsulated within this recessed groove. Figure 3 As shown, a specific encapsulation method may include: installing the heating component 82 in the sinking tank, and then covering the upper port of the sinking tank, i.e., the upper part of the heating component 82, with a barrier pad 20 having water-proof and insulating properties. The barrier pad 20 seals the heating component 82 inside the heating component 82 to prevent short circuits. Of course, the above is a preferred encapsulation method in this embodiment. Other feasible and reasonable encapsulation structures are all within the protection scope of this embodiment.
[0038] Specifically, multiple heating components 82 are encapsulated on the side of the heating partition 81 near the cleaning chamber 3. These heating components 82 can heat the cleaning liquid in the cleaning chamber 3. Due to the negative pressure environment, the heating temperature can reach the boiling point of the cleaning liquid at 50-70℃. Then, the micro bubbles in the raw wool fibers are discharged by the low-temperature boiling effect of negative pressure, which solves the problem of reduced permeability of the cleaning liquid in the fibers due to residual bubbles.
[0039] As a preferred embodiment, a heat dissipation vent 15 is provided on the main body 1 at a position corresponding to the electrical compartment 4. The heat dissipation vent 15 ensures that the electrical compartment 4 is at a suitable temperature, thereby improving the service life of the drive motor assembly 7.
[0040] As a preferred embodiment, the drive motor assembly 7 includes an ABB M3BP series permanent magnet synchronous motor, which has the advantages of high efficiency and precise speed regulation, meeting the requirements of this embodiment.
[0041] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various improvements without departing from this utility model, and these improvements should also be considered within the scope of protection of this utility model. These improvements will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of the claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.
Claims
1. A centrifugal negative pressure primary cleaning device for raw wool, characterized in that: The device comprises a main body and a cover. The main body contains a heating baffle that divides its internal cavity into a cleaning chamber and an electrical chamber. The cleaning chamber contains a cleaning screen, the outer diameter of which is smaller than the inner wall of the cleaning chamber, forming a liquid-passing gap between them. The cleaning chamber also has a drain port near its bottom that communicates with this liquid-passing gap. The electrical chamber contains a drive motor assembly that passes through the heating baffle and is connected to the cleaning screen via a bearing seat to drive the screen's rotation. The cover can be fitted over the upper part of the main body and has a liquid inlet and a negative pressure suction port.
2. The centrifugal negative pressure primary cleaning device for raw wool according to claim 1, characterized in that: The inner side of the cover has a double-ring structure consisting of an outer ring and an inner ring, and a liquid inlet channel is formed between the inner ring and the outer ring; the inner ring is equipped with a bearing, and the inner ring can be rotated relative to the upper end of the cleaning screen barrel to close the cover, and the outer ring can close the cover to the upper end of the body to seal.
3. The centrifugal negative pressure primary cleaning device for raw wool according to claim 2, characterized in that: The liquid inlet channel has a ring-shaped structure, and multiple sets of nozzles connected to the liquid inlet are arranged inside it.
4. The centrifugal negative pressure primary cleaning device for raw wool according to claim 1, characterized in that: The heating partition includes heating components evenly distributed on the heating partition.
5. The centrifugal negative pressure primary cleaning device for raw wool according to claim 4, characterized in that: The heating component is at least one of a resistance heater or a carbon-based heating unit. The heating partition has a sinking trough on the side near the cleaning chamber, and the heating component is encapsulated in the sinking trough.
6. The centrifugal negative pressure primary cleaning device for raw wool according to claim 1, characterized in that: The outer wall of the washing screen barrel is provided with multiple sets of holes arranged from bottom to top, and the diameter of the holes is 1.5–2.5 mm.
7. The centrifugal negative pressure primary cleaning device for raw wool according to claim 1, characterized in that: The cleaning chamber is located above the electrical chamber, and the main body has a heat dissipation vent at a position corresponding to the electrical chamber.
8. The centrifugal negative pressure primary cleaning device for raw wool according to claim 1, characterized in that: The width of the liquid passage gap is 2-5 cm.
9. The centrifugal negative pressure primary cleaning device for raw wool according to claim 1, characterized in that: The drive motor assembly includes an ABB M3BP series permanent magnet synchronous motor.