Centrifuge device with a spraying system and a double drain system

Abstract

The application discloses a centrifugal device with a spraying system and a double liquid discharge pipe system. The centrifugal device comprises a centrifugal cylinder with an open top end and an interior for containing a mixture, a first liquid discharge port arranged at a lower portion of a side wall of the centrifugal cylinder, and a second liquid discharge port arranged at a bottom of the centrifugal cylinder; a spraying system comprising a solvent tank, a spraying pipe in communication with the solvent tank, and a nozzle arranged at a distal end of the spraying pipe and facing an inner wall of the centrifugal cylinder, for spraying solvent to detach and wash solids adhered to the wall of the cylinder; a double liquid discharge pipe system comprising a first liquid discharge pipe connected to the first liquid discharge port and a second liquid discharge pipe connected to the second liquid discharge port; and a waste liquid tank, to which outlet ends of the first liquid discharge pipe and the second liquid discharge pipe are connected.

Description

Technical Field

[0001] This application belongs to the field of industrial production equipment, and specifically relates to a centrifuge device with a spray system and a dual drain pipe system. Background Technology

[0002] Centrifugal separation is a solid-liquid separation technology based on the principle of centrifugal force, widely used in various fields of industrial production, such as chemical, pharmaceutical, and food processing. Through the centrifugal force generated by high-speed rotation, solid particles and liquid in a mixture are separated. Solid particles, due to their higher density, are pushed towards the outer wall of the centrifuge, while the liquid remains in the central region, achieving the effect of separating solids and liquids.

[0003] However, in continuous production processes, while the powerful centrifugal force generated by the high-speed rotation of a centrifuge can achieve rapid phase separation, the solid matter often adheres to the centrifuge cylinder wall after centrifugation. Because the solid matter adheres to the wall, it cannot be completely recovered, resulting in the loss of raw materials or products, thereby reducing yield.

[0004] Hollow microspheres are a type of functional material with a unique structure, widely used in catalysis, drug delivery, artificial cells, insulating materials, and low-dielectric materials due to their distinctive loading capacity and low-density properties. In their production process, separation is a crucial step in removing excess solvent from the synthesis process to facilitate subsequent processing. Specifically, the hollow microsphere dispersion is first coarsely separated into solid and liquid phases through primary centrifugation, followed by multi-stage washing with solvents (such as water, ethanol, or alkanes) to remove impurities. Finally, high-speed centrifugation is used to dehydrate and obtain dried microspheres.

[0005] However, due to the excessive liquid content inside the hollow microspheres, a large amount of liquid remains after centrifugation. After standing for a period of time, this liquid flows out and accumulates at the bottom of the centrifuge, resulting in incomplete solid-liquid separation. Furthermore, the strong interaction between the hollow microspheres and the dispersion medium further affects the dehydration effect of the centrifuge. Utility Model Content

[0006] To overcome or mitigate the shortcomings of the existing technology, one objective of this application is to provide a centrifuge device with a spray system and a dual-drainage pipe system. The spray system effectively removes substances adhering to the cylinder wall, reducing production loss; furthermore, the spray system washes the hollow microspheres to remove impurities. The dual-drainage pipe system ensures that waste liquid is smoothly discharged through the dual drain pipes, further improving the separation effect.

[0007] To achieve the above-mentioned objectives, the present application may adopt the following technical solutions.

[0008] One embodiment of this application provides a centrifuge device with a spray system and a dual drain pipe system, comprising: a centrifuge cylinder having an opening at its top and an interior for containing a mixture, a first drain port on the lower part of the side wall of the centrifuge cylinder, and a second drain port at the bottom of the centrifuge cylinder; a spray system including a solvent tank, a spray pipe communicating with the solvent tank, and a nozzle disposed at the end of the spray pipe and facing the inner wall of the centrifuge cylinder, for spraying solvent to detach and wash solids adhering to the cylinder wall; a dual drain pipe system including a first drain pipe connected to the first drain port and a second drain pipe connected to the second drain port; and a waste liquid tank, with the outlet ends of the first drain pipe and the second drain pipe connected to the waste liquid tank.

[0009] In at least one embodiment, the outlet ends of the first drain pipe and the second drain pipe are connected in parallel via a three-way solenoid valve, and the waste liquid tank is connected to the third interface of the three-way solenoid valve via a guide pipe.

[0010] In at least one embodiment, a control system and a level gauge are also included. The level gauge is disposed on the side wall of the centrifuge cylinder and is used to monitor the liquid level in the centrifuge cylinder in real time. The control system is electrically connected to the level gauge and is signal-connected to the three-way solenoid valve, and switches the conduction state of the three-way solenoid valve according to the liquid level value in the centrifuge cylinder.

[0011] In at least one embodiment, the centrifugal cylinder is driven to rotate by a motor, and the control system is connected to the motor, controlling the speed and running time of the motor.

[0012] In at least one embodiment, the inlets of the first drain pipe and the second drain pipe are each provided with a stainless steel filter screen to prevent solids in the mixture from being discharged from the centrifugal cylinder. The stainless steel filter screen is detachably installed at the inlets of the first drain pipe and the second drain pipe.

[0013] In at least one embodiment, the second drain pipe is connected to a vacuum pump, which generates a negative pressure in the second drain pipe when it is started, for discharging the liquid from the bottom of the centrifugal cylinder.

[0014] In at least one embodiment, the centrifuge device further includes a shock-absorbing device comprising a polyurethane shock-absorbing layer having a thickness of 8-12 mm and a Shore hardness of 70-80A.

[0015] In at least one embodiment, the nozzle is a fan-shaped atomizing nozzle with a spray angle of 60-90 degrees, and the spray pipe is equipped with a flow regulating valve.

[0016] In at least one embodiment, the spraying system includes a nozzle position adjustment device connected to the nozzle for adjusting the position and / or orientation of the nozzle, thereby allowing the nozzle to spray different locations within the centrifugal cylinder.

[0017] In at least one embodiment, the spraying system includes multiple spray pipes and multiple solvent tanks for spraying different solvents onto the centrifugal cylinder.

[0018] By adopting the above technical solution, this application provides a centrifuge device with a spray system and a dual-drainage pipe system. The directional rinsing effect generated by the spray system effectively removes substances adhering to the centrifuge cylinder wall, reducing yield loss. The spray system can also wash the hollow microspheres to remove impurities. The dual-drainage pipe system design allows for more thorough separation of product and waste liquid; the separated waste liquid can be completely discharged through the dual-drainage pipe system, improving the solid-liquid separation effect. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of a centrifuge device with a spray system and a dual drain pipe system according to an embodiment of this application.

[0020] Explanation of reference numerals in the attached figures

[0021] 10. Centrifuge cylinder;

[0022] 11 First drain outlet; 12 Second drain outlet; 13 Level gauge;

[0023] 20. Sprinkler system;

[0024] 21 Solvent tank; 22 Spray pipe; 23 Nozzle;

[0025] 30. Dual-drainage system;

[0026] 31 First drain pipe; 32 Second drain pipe; 33 Three-way solenoid valve;

[0027] 40 Waste liquid tanks;

[0028] 50. Polyurethane damping layer;

[0029] 60 Vacuum Pump Detailed Implementation

[0030] Exemplary embodiments of this application are described below with reference to the accompanying drawings. It should be understood that these specific descriptions are for teaching those skilled in the art how to implement this application only, and are not intended to exhaust all possible methods of this application, nor to limit the scope of this application.

[0031] The present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] like Figure 1 As shown, an embodiment of this application provides a centrifuge device with a spray system and a dual drain pipe system, which may include a centrifuge cylinder 10, a spray system 20, a dual drain pipe system 30, a waste liquid tank 40, and a control system.

[0033] In this embodiment, as Figure 1 As shown, the centrifuge cylinder 10 can be a column with an open top, and its interior can contain the mixture to be separated. This mixture can be an aqueous dispersion of hollow microspheres, such as an aqueous dispersion of silica hollow microspheres or polystyrene hollow microspheres. Specifically, a first drain port 11 can be provided on the lower part of the side wall of the centrifuge cylinder 10, and a second drain port 12 can be provided at the bottom of the centrifuge cylinder 10. By providing the first drain port 11 and the second drain port 12, the liquid inside the centrifuge cylinder 10 can be discharged at different stages of the centrifugation process.

[0034] Furthermore, the centrifuge cylinder 10 may also be equipped with a level gauge 13. The level gauge 13 is located on the side of the centrifuge cylinder 10 and can be used to measure the liquid level inside the centrifuge cylinder 10. The centrifuge cylinder 10 may also be connected to a drive device for driving the centrifuge cylinder 10 to rotate at different speeds. The drive device may include a motor, which may be located at the bottom or side of the centrifuge cylinder 10.

[0035] like Figure 1 As shown, the spray system 20 may include a solvent tank 21, a spray pipe 22 communicating with the solvent tank 21, and a nozzle 23 located at the end of the spray pipe 22 and facing the inside of the centrifugal cylinder 10.

[0036] Preferably, the solvent stored in solvent tank 21 can be ethanol, water, or alkanes, and can be selected according to the specific solvent dispersed in the hollow microspheres.

[0037] Preferably, nozzle 23 can be a fan-shaped atomizing nozzle with a spray angle of 60-90 degrees, and a flow regulating valve can be provided on the spray pipe 22. The fan-shaped atomizing nozzle facilitates thorough rinsing of the inner wall of the centrifugal cylinder by the sprayed liquid, thereby causing solids adhering to the inner wall to detach. Simultaneously, it also facilitates thorough washing of the hollow microsphere solid products, effectively removing impurities. Furthermore, the flow regulating valve allows for flexible adjustment of the spray liquid flow rate to ensure optimal spraying and washing effects.

[0038] In this embodiment, the spray system 20 functions to desorb solids adhering to the inner wall of the centrifuge cylinder 10, thereby improving product recovery rate. Furthermore, during the drying process of the hollow microspheres, the solvent sprayed from the spray system 20 can also be used to wash the hollow microspheres to effectively remove impurities.

[0039] Optionally, the spray system 20 may further include a nozzle position adjustment device connected to the nozzle 23, which can adjust the position and / or orientation of the nozzle so that the nozzle 23 sprays different locations within the centrifugal cylinder 10. For example, by rotating the nozzle 23, the nozzle 23 can spray different locations on the side wall of the centrifugal cylinder 10.

[0040] In another example, the orientation of nozzle 23 can be adjusted manually.

[0041] In another example, the orientation of nozzle 23 can be fixed, and different circumferential (sidewall) positions of centrifugal cylinder 10 can be sprayed by nozzle 23 by rotating centrifugal cylinder 10.

[0042] In this embodiment, as Figure 1 As shown, the dual-drainage pipe system 30 may include a first drain pipe 31 connected to the first drain port 11 and a second drain pipe 32 connected to the second drain port 12. The outlet ends of the first drain pipe 31 and the second drain pipe 32 can be connected in parallel via a three-way solenoid valve 33; that is, the outlet ends of the first drain pipe 31 and the second drain pipe 32 are respectively connected to the first interface and the second interface of the three-way solenoid valve 33.

[0043] Furthermore, such as Figure 1 As shown, the centrifuge may also include a waste liquid tank 40 for collecting the liquid discharged from the centrifuge. The waste liquid tank 40 can be connected to the third port of the three-way solenoid valve 33 via a guide pipe.

[0044] The specific working process of the three-way solenoid valve 33 is as follows: during the centrifugation stage, it can connect the first drain pipe 31 and the guide pipe so that the separated liquid can be discharged through the first drain pipe 31; during the discharge termination stage, it can connect the second drain pipe 32 and the guide pipe so that the residual liquid precipitated at the bottom of the centrifuge cylinder 10 can be discharged through the second drain pipe 32.

[0045] Furthermore, in this embodiment, the second drain pipe 32 can be connected to a vacuum pump 60. When the vacuum pump 60 is started, it can generate negative pressure in the second drain pipe 32, so that the liquid at the bottom of the centrifugal cylinder 10 can be discharged through the second drain pipe 32.

[0046] In this way, the three-way solenoid valve 33 allows the first drain pipe 31 and the second drain pipe 32 to open at different stages, thereby completely draining the liquid inside the centrifuge cylinder 10. The dual drain pipe system facilitates the full drainage of liquid, allowing the solid obtained after centrifugation to be thoroughly dried.

[0047] In this embodiment, the control system can be connected to the drive device to adjust the rotational speed and time of the centrifugal cylinder 10. The control system can also be connected to the three-way solenoid valve 33 and can switch the conduction state of the three-way solenoid valve 33 according to the liquid level in the centrifugal cylinder 10. Furthermore, the control system can be connected to the spray system 20 to control the opening of the flow regulating valve or the operation of the nozzle position adjusting device.

[0048] Furthermore, the liquid level inside the centrifuge cylinder 10 can be monitored in real time by the level gauge 13, and the control system is electrically connected to the level gauge 13. It is understood that the measurement results from the level gauge 13 can be transmitted to the control system for real-time monitoring and control.

[0049] Furthermore, the control system can also be connected to the motor. Based on different centrifugation operating parameters for different mixtures, the control system can flexibly adjust the motor speed and running time to achieve the best centrifugation effect.

[0050] In this embodiment, preferably, both the inlets of the first drain pipe 31 and the second drain pipe 32 are equipped with stainless steel filter screens to prevent solids in the mixture from being discharged from the centrifuge cylinder 10. The stainless steel filter screens are detachably installed at the inlets of the first drain pipe 31 and the second drain pipe 32.

[0051] Preferably, the size of the stainless steel filter screen can be flexibly selected according to the size of the hollow microspheres.

[0052] like Figure 1 As shown in this embodiment, the centrifuge device may also include a shock-absorbing device to reduce vibration during operation.

[0053] Preferably, the damping device can be a polyurethane damping layer 50, which covers the outer wall of the centrifugal cylinder 10. Further, the thickness of the polyurethane damping layer 50 can be 8-12 mm, and its Shore hardness can be 70-80 A.

[0054] Optionally, the spray system 20 may include multiple spray pipes and multiple solvent tanks to spray different solvents onto the centrifugal cylinder 10.

[0055] Optionally, the centrifugal cylinder 10 may have an openable and closable lid, which may be integral or multi-piece. Optionally, the lid may have a slot or hole through which the spray pipe 22 passes. Optionally, the lid may have an observation hole or observation window, or at least a portion of the lid may be transparent.

[0056] The following is combined with Figure 1 This paper describes the process of solid-liquid separation of hollow microspheres using the centrifuge device with a spray system and a dual drain pipe system described in this application.

[0057] A dispersion containing hollow microspheres is introduced into a centrifuge. The centrifuge speed and centrifugation time are set via a control system. The centrifuge rotates at a specific speed and time, resulting in initial solid-liquid separation of the hollow microsphere dispersion. The separated liquid is discharged through the first drain pipe 31 via a three-way solenoid valve 33 and enters the waste liquid tank 40. The solid product is then repeatedly washed with a solvent (such as water, ethanol, or alkanes) via a spray system 20, with the flow rate and angle of the nozzles 23 set. After washing, the product is centrifuged again. The drain port of the centrifuge cylinder 10 is then connected to the first drain pipe 31 via the three-way solenoid valve 33, discharging most of the liquid into the waste liquid tank 40. After settling, the hollow microspheres precipitate their internal liquid. The second drain pipe 32 is connected via the three-way solenoid valve 33, and the vacuum pump 60 is activated, discharging the residual liquid precipitated from the hollow microspheres after settling from the bottom of the centrifuge cylinder 10 into the waste liquid tank 40, yielding the hollow microsphere solid product.

[0058] In one possible embodiment, 5 L of an aqueous dispersion of silica hollow microspheres with a solid content of 10% is introduced into a centrifuge cylinder 10 and centrifuged (4000 rpm, 10 minutes) to obtain a solid product. The separated liquid is discharged through a three-way solenoid valve 33 via a first drain pipe 31 into a waste liquid tank 40. The solid product is repeatedly washed with water and ethanol via a spray system 20, followed by another centrifugation, and the waste liquid is discharged through the first drain pipe 31. After standing for 1 minute, the residual liquid in the hollow microspheres flows to the bottom of the centrifuge cylinder 10. The second drain pipe 32 is connected via a three-way solenoid valve 33, and a vacuum pump 60 is turned on, allowing the residual liquid to be discharged through the second drain pipe 32. Through these steps, a solid product of silica hollow microspheres is obtained.

[0059] In one possible embodiment, 5 L of an aqueous dispersion of polystyrene hollow microspheres with a solid content of 10% is introduced into a centrifuge cylinder 10 and centrifuged (4000 rpm, 10 minutes) to obtain a solid product. The separated liquid is discharged through a three-way solenoid valve 33 via a first drain pipe 31 into a waste liquid tank 40. The solid product is repeatedly washed with water and ethanol via a spray system 20, followed by another centrifugation, and the waste liquid is discharged through the first drain pipe 31. After standing for 1 minute, the residual liquid in the hollow microspheres flows to the bottom of the centrifuge cylinder 10. The second drain pipe 32 is connected via a three-way solenoid valve 33, and a vacuum pump 60 is turned on, allowing the residual liquid to be discharged through the second drain pipe 32. Through these steps, a solid polystyrene hollow microsphere product is obtained.

[0060] In one possible embodiment, 5 L of an aqueous dispersion of silica hollow microspheres with a solid content of 10% is introduced into a centrifuge cylinder 10 and centrifuged (speed: 2000 rpm, time: 10 minutes) to obtain a solid product. The separated liquid is discharged through the first drain pipe 31 via a three-way solenoid valve 33 and enters a waste liquid tank 40. The solid product is repeatedly washed with water and ethanol via a spray system 20, and centrifuged again after washing. The waste liquid is discharged through the first drain pipe 31. After standing for 1 minute, the residual liquid in the hollow microspheres flows into the bottom of the centrifuge cylinder 10. The second drain pipe 32 is connected via the three-way solenoid valve 33, and the vacuum pump 60 is turned on, allowing the residual liquid to be discharged through the second drain pipe 32. Through the above steps, a silica hollow microsphere solid product is obtained.

[0061] The centrifuge device provided in this application, equipped with a spray system and a dual-drainage pipe system, effectively removes substances adhering to the centrifuge cylinder wall through the directional rinsing action of the spray system, reducing yield loss. Simultaneously, the spray system can also spray solvent to repeatedly wash the solid material after centrifugation, effectively removing impurities. Furthermore, the dual-drainage pipe system design allows waste liquid accumulated at the bottom of the centrifuge cylinder to be discharged through the dual-drainage pipe system, ensuring separation efficiency.

Claims

1. A centrifuge device having a spray system and a dual drain pipe system, characterized in that, include: A centrifuge cylinder has an opening at its top and an interior for containing a mixture. The lower part of the side wall of the centrifuge cylinder is provided with a first drain port, and the bottom of the centrifuge cylinder is provided with a second drain port. A spraying system includes a solvent tank, a spray pipe connected to the solvent tank, and a nozzle located at the end of the spray pipe and facing the inner wall of the centrifugal cylinder, for spraying solvent to detach solids adhering to the cylinder wall and wash the solids. A dual-drainage pipe system includes a first drain pipe connected to the first drain port and a second drain pipe connected to the second drain port; A waste liquid tank, with the outlet ends of the first drain pipe and the second drain pipe connected to the waste liquid tank.

2. The centrifuge device with a spray system and a dual drain pipe system according to claim 1, characterized in that, The outlet ends of the first drain pipe and the second drain pipe are connected in parallel via a three-way solenoid valve, and the waste liquid tank is connected to the third interface of the three-way solenoid valve via a guide pipe.

3. The centrifuge device with a spray system and a dual drain pipe system according to claim 2, characterized in that, It also includes a control system and a level gauge, the level gauge being installed on the side wall of the centrifuge cylinder for real-time monitoring of the liquid level inside the centrifuge cylinder, and the control system being electrically connected to the level gauge. The control system is connected to the three-way solenoid valve and switches the conduction state of the three-way solenoid valve according to the liquid level in the centrifugal cylinder.

4. The centrifuge device with a spray system and a dual drain pipe system according to claim 3, characterized in that, The centrifugal cylinder is driven to rotate by a motor, and the control system is connected to the motor to control the motor's speed and running time.

5. The centrifuge device with a spray system and a dual drain pipe system according to claim 1, characterized in that, Both the first drain pipe and the second drain pipe are equipped with stainless steel filter screens at their openings to prevent solids in the mixture from being discharged from the centrifugal cylinder. The stainless steel filter screens are detachably installed at the openings of the first drain pipe and the second drain pipe.

6. The centrifuge device with a spray system and a dual drain pipe system according to claim 1, characterized in that, The second drain pipe is connected to a vacuum pump. When the vacuum pump is started, it generates a negative pressure in the second drain pipe to discharge the liquid from the bottom of the centrifugal cylinder.

7. The centrifuge device with a spray system and a dual drain pipe system according to claim 1, characterized in that, The centrifugal device also includes a shock-absorbing device, which includes a polyurethane shock-absorbing layer with a thickness of 8-12 mm and a Shore hardness of 70-80A.

8. The centrifuge device with a spray system and a dual drain pipe system according to claim 1, characterized in that, The nozzle is a fan-shaped atomizing nozzle with a spray angle of 60-90 degrees, and the spray pipe is equipped with a flow regulating valve.

9. The centrifuge device with a spray system and a dual drain pipe system according to claim 1, characterized in that, The spraying system includes a nozzle position adjustment device connected to the nozzle for adjusting the position and / or orientation of the nozzle, thereby allowing the nozzle to spray different locations within the centrifugal cylinder.

10. The centrifuge device with a spray system and a dual drain pipe system according to claim 1, characterized in that, The spraying system includes multiple spray pipes and multiple solvent tanks to spray different solvents onto the centrifugal cylinder.

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