Improved vacuum defoaming machine

Abstract

The utility model relates to the field of stirring and defoaming equipment, in particular to an improved vacuum defoaming machine which comprises a rack, a vacuum cavity and a driving motor, the vacuum cavity is fixed on the rack, the driving motor is mounted at the bottom in the rack, an output end of the driving motor is connected with a transmission shaft through a transmission belt, and the other end of the transmission shaft extends into the vacuum cavity. The end part of the transmission shaft is connected with a first rotor, the first rotor is arranged in the vacuum cavity, and the first rotor is driven by the transmission shaft to rotate so as to generate centrifugal force; one side of the vacuum cavity is connected with a feeding pipeline, the feeding pipeline is connected with a gap adjusting inlet, the gap adjusting inlet is arranged opposite to the center of the first rotor, a gap between the gap adjusting inlet and the first rotor is adjustable, and the other side of the vacuum cavity is connected with a discharging pipeline; compared with the prior art, the defoaming device can meet the requirements of different slurries and different viscosities, can effectively solve the defoaming problem of high-viscosity slurries, and can meet the application occasions with high yield requirements.

Description

Technical Field

[0001] The utility model relates to the field of stirring and defoaming equipment, and particularly to an improved vacuum defoaming machine capable of defoaming slurries with various viscosities. Background Art

[0002] At present, it has wide applications and demands in the fields of biomedicine, glue, paint, injection molding, battery industry and new materials. After the slurry is stirred, it is necessary to separate the internal bubbles before it can be finally canned or applied to subsequent production. Most of the current defoaming methods adopt a defoaming method of a sealed tank body and a motor-driven stirring paddle, and its disadvantages are low production capacity, easy secondary pollution of raw materials, and certain limitations.

[0003] Chinese Patent Publication No. CN206424637U discloses a continuous vacuum defoaming and degassing device. When defoaming a slurry with extremely high viscosity, it will form a blockage and lose its function, resulting in a decrease in defoaming efficiency.

[0004] Chinese Patent Publication No. CN220237831U discloses a vacuum defoaming machine. The slurry is extruded through a one-way valve by a small piston to make the slurry into small droplets that hit the inner wall of the vacuum chamber to form a liquid film, and at the same time, the large piston moves downward to cooperate with the vacuum pump to quickly form a vacuum for defoaming. This structure itself has certain limitations for defoaming high-viscosity slurries and is not suitable for defoaming high-viscosity slurries.

[0005] Therefore, there is a great need for a new device to solve the problem of efficient defoaming of slurries with high viscosity or a large viscosity range in multiple industries. Summary of the Utility Model

[0006] The purpose of the utility model is to solve the above-mentioned deficiencies and provide an improved vacuum defoaming machine, which can adapt to different slurries and different viscosity requirements, can effectively solve the defoaming problem of high-viscosity slurries, and can meet the application occasions with high output requirements.

[0007] To achieve the above object, an improved vacuum degassing machine is designed, which includes a frame 5, a vacuum chamber 2 and a drive motor 11. The vacuum chamber 2 is fixed on the frame 5. The drive motor 11 is installed at the inner bottom of the frame 5. The output end of the drive motor 11 is connected to a transmission shaft 8 through a transmission belt 12. The other end of the transmission shaft 8 extends into the vacuum chamber 2, and a first rotor 9 is connected to the end of the transmission shaft 8. The first rotor 9 is arranged in the vacuum chamber 2, and the first rotor 9 rotates under the drive of the transmission shaft 8 to generate centrifugal force. One side of the vacuum chamber 2 is connected to a feed pipeline 1. The feed pipeline 1 is connected to a gap adjustment inlet 14. The gap adjustment inlet 14 is arranged opposite to the center of the first rotor 9. The gap between the gap adjustment inlet 14 and the first rotor 9 is adjustable. The other side of the vacuum chamber 2 is connected to a discharge pipeline 3.

[0008] Further, the first rotor 9 is connected to a second rotor 16 by bolts. A pick-up ring 10 is arranged at the middle position between the first rotor 9 and the second rotor 16. The pick-up ring 10 is connected to the discharge pipeline 3 by bolts, so as to form a "pick-up pipe" inside the rotor to collect all degassed products and send them into the discharge pipe.

[0009] Further, a vacuum chamber cover 7 is installed at the front end of the vacuum chamber 2. A sealing strip is arranged between the vacuum chamber cover 7 and the vacuum chamber 2. The vacuum chamber cover 7 is connected to the vacuum chamber 2 by a hinge, so as to realize the sealing inside the vacuum chamber 2.

[0010] Further, a vacuum pipeline 15 is connected to the top of the vacuum chamber 2. The other end of the vacuum pipeline 15 is connected to a vacuum pump 13. A condensation cylinder 4 and a pneumatic valve are installed in the vacuum pipeline 15 between the vacuum chamber 2 and the vacuum pump 13, so as to realize the vacuum pumping effect on the vacuum chamber 2. And if there is product entering the vacuum pipeline 15, the pneumatic valve will automatically close to protect the vacuum pump 13.

[0011] Further, the condensation cylinder 4 is fixed on one side of the frame 5. The vacuum pump 13 is fixed on a fixing plate at the inner top of the frame 5. The condensation cylinder 4 and the vacuum pump 13 are connected to the vacuum pipeline 15 through joints, and finally form a more stable and reliable closed loop with the vacuum chamber 2 to achieve a better vacuum pumping effect.

[0012] Further, a feed valve 6 is installed at the front end of the feed pipeline 1. The feed valve 6 is used to adjust the feeding speed of the feed pipeline 1. A check valve is installed in the discharge pipeline 3. The check valve is used to prevent the slurry in the discharge pipeline 3 from flowing back.

[0013] Furthermore, the transmission shaft 8 is connected to the vacuum chamber 2 through bearings, and the bearings are installed on the vacuum chamber 2 by bolts; both the feed pipeline 1 and the discharge pipeline 3 are fixedly connected to the vacuum chamber 2 by bolts, and the vacuum chamber 2 is fixedly mounted on the frame 5 by bolts.

[0014] Furthermore, the distance between the outer end face of the gap adjustment inlet 14 and the center of the inner wall of the first rotor 9 is 0 - 5.1 mm, preferably 1 - 2 mm. By adjusting the size of this distance, the required product layer thickness can be achieved, so as to adapt to the material requirements of different slurries with different viscosities.

[0015] Compared with the prior art, the present utility model has the following advantages:

[0016] (1) In the present utility model, the rotor in the vacuum chamber rotates at a high speed to form a liquid film, so that the bubbles are fully exposed in the vacuum to realize the defoaming process of the slurry. By increasing the feed valve to adjust the feed speed, it provides the necessary conditions for the fast feeding of the processed material and can improve the output.

[0017] (2) In the present utility model, the motor drives the rotating shaft to rotate at a high speed, thereby driving the rotor in the vacuum chamber to rotate at a high speed to generate centrifugal force, and removing the entrained air from products with various viscosities through the principle of film rotation.

[0018] (3) In the present utility model, the required product layer thickness is achieved by adjusting the distance between the inner wall of the first rotor and the outermost end face of the gap adjustment inlet, so as to adapt to different slurries and the material requirements of different viscosities.

[0019] In summary, the vacuum defoaming machine of the present utility model can adapt to different slurries and different viscosity requirements, can meet the application occasions with high output requirements, meet the market demand for defoaming of slurries with different viscosities and relatively high viscosities, and effectively solve the defoaming problem of high-viscosity slurries. [Description of the Drawings]

[0020] Figure 1 is the front view of the present utility model;

[0021] Figure 2 is the side view of the present utility model;

[0022] Figure 3 is the top view of the present utility model;

[0023] Figure 4 is the partial structural schematic diagram of the rotor and the vacuum chamber of the present utility model;

[0024] Figure 5 is the partial structural schematic diagram of the vacuum pump and the vacuum chamber of the present utility model;

[0025] Figure 6It is a schematic diagram of the adjustable range of the gap adjustment inlet of the present utility model;

[0026] In the figure: 1. Feed pipeline; 2. Vacuum chamber; 3. Discharge pipeline; 4. Condensation cylinder; 5. Frame; 6. Feed valve; 7. Vacuum chamber cover; 8. Drive shaft; 9. First rotor; 10. Pick-up ring; 11. Drive motor; 12. Transmission belt; 13. Vacuum pump; 14. Gap adjustment inlet; 15. Vacuum pipeline; 16. Second rotor. [Specific embodiments]

[0027] As shown in the appended Figure 1 to the appended Figure 6 As shown, the present utility model provides an improved vacuum degassing machine, which can degas various viscosity slurries. The vacuum degassing machine mainly includes a frame 5, a vacuum chamber 2 and a drive motor 11. The vacuum chamber 2 is fixed on the frame 5. A drive motor 11 is installed at the inner bottom of the frame 5. The output end of the drive motor 11 is connected to a drive shaft 8 through a transmission belt 12. The other end of the drive shaft 8 extends into the vacuum chamber 2, and a first rotor 9 is connected to the end of the drive shaft 8. The first rotor 9 is arranged in the vacuum chamber 2, and the first rotor 9 rotates under the drive of the drive shaft 8 to generate centrifugal force; One side of the vacuum chamber 2 is connected with a feed pipeline 1, the feed pipeline 1 is connected with a gap adjustment inlet 14, the gap adjustment inlet 14 is arranged opposite to the center of the first rotor 9, and the gap between the gap adjustment inlet 14 and the first rotor 9 is adjustable. The other side of the vacuum chamber 2 is connected with a discharge pipeline 3; The first rotor 9 is connected to the second rotor 16 by bolts. A pick-up ring 10 is arranged at the middle position between the first rotor 9 and the second rotor 16. The pick-up ring 10 is connected to the discharge pipeline 3 by bolts, so as to form a "pick-up pipe" inside the rotor, collect all degassed products and send them into the discharge pipe.

[0028] Among them, a vacuum chamber cover 7 is installed at the front end of the vacuum chamber 2. A sealing strip is arranged between the vacuum chamber cover 7 and the vacuum chamber 2. The vacuum chamber cover 7 is connected to the vacuum chamber 2 through a hinge, so as to realize the sealing inside the vacuum chamber 2. The top of the vacuum chamber 2 is connected with a vacuum pipeline 15. The other end of the vacuum pipeline 15 is connected with a vacuum pump 13. A condensation cylinder 4 and a pneumatic valve are installed in the vacuum pipeline 15 between the vacuum chamber 2 and the vacuum pump 13, so as to realize the vacuum pumping effect on the vacuum chamber 2. And if there is product entering the vacuum pipeline 15, the pneumatic valve will automatically close to protect the vacuum pump 13; The condensation cylinder 4 is fixed on one side of the frame 5, the vacuum pump 13 is fixed on the fixing plate at the inner top of the frame 5. The condensation cylinder 4 and the vacuum pump 13 are connected in the vacuum pipeline 15 through joints, and finally form a more stable and reliable closed loop with the vacuum chamber 2 to realize a better vacuum pumping effect.

[0029] At the very front end of the feed pipeline 1, a feed valve 6 is installed, and the feed valve 6 is used to adjust the feeding speed of the feed pipeline 1; a check valve is installed in the discharge pipeline 3, and the check valve is used to prevent the slurry in the discharge pipeline 3 from flowing back. The transmission shaft 8 is connected to the vacuum chamber 2 through bearings, and the bearings are installed on the vacuum chamber 2 by bolts; both the feed pipeline 1 and the discharge pipeline 3 are fixedly connected to the vacuum chamber 2 by bolts, and the vacuum chamber 2 is fixedly mounted on the frame 5 by bolts. The distance between the outer end face of the gap adjustment inlet 14 and the center of the inner wall of the first rotor 9 is 0 - 5.1 mm, preferably 1 - 2 mm. By adjusting the size of this distance, the required product layer thickness can be achieved, so as to adapt to the material requirements of different slurries with different viscosities.

[0030] The vacuum degassing principle adopted by the present utility model can remove the entrained air from products with various viscosities through the film rotation principle. Under the action of centrifugal force, the slurry can form a liquid film and spread on the rotor, enabling the bubbles to be fully exposed in the vacuum environment. Under the action of the pressure difference between the inside of the bubbles and the vacuum environment, the bubbles burst rapidly, thus achieving efficient degassing. At the same time, the adjustable design of the liquid film thickness can adapt to the requirements of different slurries and different viscosities, and also provides a guarantee for effectively solving the degassing problem of high-viscosity slurries. The present utility model can be used for both small-scale batch production and large-scale continuous production, and its output depends on the product type, viscosity, and installed capacity.

[0031] The vacuum degassing machine of the present utility model mainly consists of a closed frame with a rotor, internal drive, bearings, a vacuum chamber, and a vacuum pump, etc. The vacuum pump creates the required vacuum environment in the vacuum chamber. The product enters the center of the rotor in the vacuum chamber through the feed pipe. The required product layer thickness on the rotor can be achieved by changing the easily adjustable inlet gap. The valve in the feed pipeline can adjust the feed amount of the product; the check valve in the product discharge pipeline can prevent the product from flowing back. Due to the centrifugal force formed by the high-speed rotation of the rotor, the product can spread on the rotor in the form of a film, thereby degassing; there is a "pick-up pipe" inside the rotor, which collects all the degassed products and sends them into the discharge pipe. A condenser and a pneumatic valve are installed in the vacuum pipeline between the vacuum chamber and the vacuum pump. If the product enters the vacuum pipeline, the pneumatic valve will automatically close to protect the vacuum pump.

[0032] The following further describes the present utility model in conjunction with the accompanying drawings and specific embodiments:

[0033] The driving motor 11 is fixed on the frame 5 and together with the transmission belt 12 and the transmission shaft 8 constitutes the transmission system of the vacuum degassing machine. The rotation of the transmission shaft 8 is powered by the driving motor of the entire vacuum degassing machine. The transmission shaft 8 is connected to the vacuum chamber 2 by bolts. The transmission belt 12 connects the driving motor 11 and the transmission shaft 8, thereby achieving a change in rotational speed. The first rotor 9 is connected to the transmission shaft 8 and is thus driven by the main shaft of the transmission shaft to rotate at a high speed, thereby providing centrifugal force. The required product layer thickness is achieved by adjusting the gap between the gap adjustment inlet 14 and the first rotor 9. The gap adjustment inlet 14 is connected to the feed pipeline 1. The feed pipeline 1 is fixed to the vacuum chamber 2 by bolts, and the vacuum chamber 2 is fixed to the frame 5 by bolts. The vacuum chamber cover 7 covers the vacuum chamber 2 through hinges, star-shaped handles and sealing strips, enabling sealing inside the chamber; the feed valve 6 is in the feed pipeline 1 and is used to adjust the feed speed of the product. The first rotor 9 and the second rotor 16 are connected by bolts. The pickup ring 10 is located in the middle position between the first rotor 9 and the second rotor 16. The pickup ring 10 is connected to the discharge pipeline 3 by bolts, and the discharge pipeline 3 is connected to the vacuum chamber 2 by bolts.

[0034] The condenser cylinder 4 is fixed on the frame 5, and the vacuum pump 13 is fixed on the fixed plate of the frame 5. The condenser cylinder 4 and the vacuum pump 13 are connected in the vacuum pipeline 15 through joints and finally form a closed loop with the vacuum chamber 2 to achieve the vacuum pumping effect on the vacuum chamber. As attached Figure 1 It can be seen that the feed valve 6 is at the very front end of the feed pipeline 1. This valve can well adjust the feeding speed and can well meet the needs of customers for quickly producing a large number of products. As attached Figure 6 shown, d1 is the distance between the inner wall of the first rotor 9 and the outermost end face of the gap adjustment inlet 14. The required product layer thickness can be achieved by adjusting the size of d1 to adapt to the requirements of different slurries and materials with different viscosities. The optional range of d1 is 0 - 5.1 mm, and the preferred value is 1 - 2 mm.

[0035] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art. The standard parts used can be purchased from the market. The special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, welding, etc. that are mature in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be elaborated here.

[0036] The present utility model is not limited by the above embodiments. Any other changes, modifications, substitutions, combinations, simplifications made without departing from the spirit and principle of the present utility model shall be equivalent replacement methods and shall be included in the protection scope of the present utility model.

Claims

1. An improved vacuum degassing machine, comprising a frame (5), a vacuum chamber (2) and a driving motor (11), characterized in that: The vacuum chamber (2) is fixed on the frame (5). A driving motor (11) is installed at the inner bottom of the frame (5). The output end of the driving motor (11) is connected to a transmission shaft (8) through a transmission belt (12). The other end of the transmission shaft (8) extends into the vacuum chamber (2), and a first rotor (9) is connected to the end of the transmission shaft (8). The first rotor (9) is arranged inside the vacuum chamber (2). The first rotor (9) rotates under the drive of the transmission shaft (8) to generate centrifugal force. One side of the vacuum chamber (2) is connected to a feed pipeline (1). The feed pipeline (1) is connected to a gap adjustment inlet (14). The gap adjustment inlet (14) is arranged opposite to the center of the first rotor (9). The gap between the gap adjustment inlet (14) and the first rotor (9) is adjustable. The other side of the vacuum chamber (2) is connected to a discharge pipeline (3).

2. The improved vacuum degassing machine according to claim 1, wherein: The first rotor (9) is connected to a second rotor (16) by bolts. A pick-up ring (10) is arranged at the middle position between the first rotor (9) and the second rotor (16). The pick-up ring (10) is connected to the discharge pipeline (3) by bolts.

3. The improved vacuum degassing machine according to claim 1, characterized in that: A vacuum chamber cover (7) is installed at the front end of the vacuum chamber (2). A sealing strip is arranged between the vacuum chamber cover (7) and the vacuum chamber (2). The vacuum chamber cover (7) is connected to the vacuum chamber (2) by a hinge.

4. The improved vacuum degassing machine according to claim 1, characterized in that: A vacuum pipeline (15) is connected to the top of the vacuum chamber (2). The other end of the vacuum pipeline (15) is connected to a vacuum pump (13). A condensation cylinder (4) and a pneumatic valve are installed in the vacuum pipeline (15) between the vacuum chamber (2) and the vacuum pump (13).

5. The improved vacuum degassing machine according to claim 4, characterized in that: The condensation cylinder (4) is fixed on one side of the frame (5). The vacuum pump (13) is fixed on a fixing plate at the inner top of the frame (5). The condensation cylinder (4) and the vacuum pump (13) are connected to the vacuum pipeline (15) through connectors.

6. The improved vacuum degassing machine according to claim 1, wherein: A feed valve (6) is installed at the front end of the feed pipeline (1). The feed valve (6) is used to adjust the feeding speed of the feed pipeline (1). A check valve is installed in the discharge pipeline (3). The check valve is used to prevent the slurry in the discharge pipeline (3) from flowing back.

7. The improved vacuum degassing machine according to claim 1, wherein: The transmission shaft (8) is connected to the vacuum chamber (2) through a bearing. The bearing is installed on the vacuum chamber (2) by bolts. Both the feed pipeline (1) and the discharge pipeline (3) are fixedly connected to the vacuum chamber (2) by bolts. The vacuum chamber (2) is fixed on the frame (5) by bolts.

8. The improved vacuum degassing machine according to any one of claims 1 to 7, characterized in that: The distance between the outer end face of the gap adjustment inlet (14) and the center of the inner wall of the first rotor (9) is 0 - 5.1 mm.

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