Horizontal centrifuge for suspension separation and control method thereof

Abstract

The invention discloses a horizontal centrifugal machine for suspension liquid separation and a control method thereof.The horizontal centrifugal machine comprises a machine shell, a rotary drum, a transmission component, a feeding component and an isolation component, and the rotary drum is arranged in the machine shell; the rotary drum is hollow and forms a centrifugal cavity, and an opening is formed in one side of the centrifugal cavity; sieve pores are formed in the annular side wall of the rotary drum and are used for carrying out solid-liquid separation on the suspension liquid; the transmission part is arranged on the machine shell. The transmission part is connected with the rotary drum and used for driving the rotary drum to rotate; the feeding part is arranged on the machine shell; one end of the feeding part extends out of the shell, and the other end of the feeding part extends into the centrifugal cavity from the opening and is used for introducing suspension liquid; the isolation component is nested on the feeding component; the isolation part is flush with the opening, and the outer edge of the isolation part is close to the inner wall of the rotary drum; and an annular gap is formed between the isolation part and the rotary drum and is used for filtering out a solid-phase product. The isolation part is arranged at the opening position of the centrifugal cavity, so that aerosol overflow is reduced, and the solid-phase and liquid-phase separation quality is improved.

Description

Technical Field

[0001] The present invention relates to the field of bioprocess technology, and particularly to a horizontal centrifuge for separating suspensions and a control method thereof. Background Art

[0002] In bioprocesses, for suspensions containing crystalline plant cells or fibrous solids, various separation methods can be used to achieve efficient solid-liquid separation, and the most commonly used one is filtration separation. The filtration centrifuge combines the dual effects of centrifugal force and a filtration medium to separate the suspension in a perforated drum centrifuge. When the suspension enters the centrifuge, under the action of centrifugal force, the filtrate is discharged through the filtration surface, while the solid particles are retained in the drum by the filtration medium to form a filter cake. The operation of the filtration centrifuge generally includes three stages: filter cake formation, filter cake compression, and filter cake drying. Through these three stages, efficient solid-liquid separation can be achieved.

[0003] However, when the existing filtration centrifuge processes materials with relatively high viscosity, liquid aerosol particles are likely to form inside the centrifuge. These aerosols are carried away by the circulating air and are likely to precipitate on the solid-phase product, thereby reducing the quality of the solid-phase product.

[0004] Therefore, the existing technology still needs to be improved and developed. Summary of the Invention

[0005] In view of the deficiencies of the above-mentioned prior art, the purpose of the present invention is to provide a horizontal centrifuge for separating suspensions and a control method thereof, aiming to solve the problems that aerosols are generated inside the existing centrifuge and overflow onto the solid-phase product, resulting in a decrease in the quality of the solid-phase product and poor solid-liquid separation effect.

[0006] The technical solution of the present invention is as follows:

[0007] A horizontal centrifuge for separating suspensions, which includes:

[0008] A housing;

[0009] A drum disposed inside the housing; the drum is hollow and forms a centrifugal chamber, and one side of the centrifugal chamber forms an opening; sieve holes are provided on the annular side wall of the drum, and the sieve holes are used for solid-liquid separation of the suspension;

[0010] A transmission component disposed in the housing; the transmission component is connected to the drum and is used to drive the drum to rotate;

[0011] A feeding component disposed in the housing; one end of the feeding component extends outside the housing, and the other end extends into the centrifugal chamber from the opening for introducing the suspension; and

[0012] The isolation component is nested on the feeding component; the isolation component is flush with the opening, and the outer edge of the isolation component is close to the inner wall of the drum;

[0013] Wherein, an annular gap is formed between the isolation component and the drum, and the annular gap is used to filter out the solid-phase product.

[0014] The horizontal centrifuge for suspension separation, wherein, the isolation component includes:

[0015] A disk, nested on the feeding component;

[0016] A flexible retaining ring, the flexible retaining ring is nested on the disk; and, an annular gap is formed between the outer edge of the flexible retaining ring and the inner wall of the drum.

[0017] The horizontal centrifuge for suspension separation, wherein, the thickness of the flexible retaining ring gradually decreases in the direction towards the annular gap.

[0018] The horizontal centrifuge for suspension separation, wherein, a number of protrusions are arranged at intervals on the disk, and a number of the protrusions are all arranged on the side of the disk facing the centrifugal chamber.

[0019] The horizontal centrifuge for suspension separation, wherein, the feeding component includes a feeding pipe, a feeding bowl and a feeding cone; the feeding pipe is arranged on the casing, one end of the feeding pipe extends outside the casing and is provided with the feeding bowl, and the other end extends into the centrifugal chamber and is provided with the feeding cone;

[0020] The isolation component includes a flushing pipe and a water pump, the flushing pipe is arranged on the outer surface of the feeding pipe and extends along the length direction of the feeding pipe; the water pump is arranged on the casing;

[0021] Wherein, one end of the flushing pipe is connected to the water pump, and the other end extends to the side of the disk facing the centrifugal chamber.

[0022] The horizontal centrifuge for suspension separation, wherein, the disk is a plastic disk; and / or, the flexible retaining ring includes any one of a rubber ring, a silica gel ring, a latex ring, a polyethylene ring, and a polyvinyl chloride ring.

[0023] The horizontal centrifuge for suspension separation, wherein, the width of the annular gap is 0 - 5 millimeters.

[0024] The horizontal centrifuge for suspension separation, wherein, a sealed liquid collection chamber is formed between the casing and the drum, and a number of leakage holes are formed at the bottom of the liquid collection chamber;

[0025] The housing at least partially extends to the outside of the opening to form a solid collection chamber, and the solid collection chamber communicates with the annular gap; moreover, a collection port is formed at the bottom of the solid collection chamber;

[0026] The horizontal centrifuge for suspension separation includes a liquid-phase collector and a solid-phase collector. The liquid-phase collector is connected to the bottom of the housing and is disposed opposite to the leakage holes; the solid-phase collector is connected to the housing and is disposed opposite to the collection port.

[0027] In the horizontal centrifuge for suspension separation, the transmission component includes a driving motor and a rotating main shaft. The rotating main shaft is inserted into the housing. One end of the rotating main shaft is connected to the driving motor, and the other end is connected to the drum; the driving motor is a variable-frequency motor.

[0028] This application also discloses a control method for a horizontal centrifuge for suspension separation, which is applied to the horizontal centrifuge for suspension separation as described in any one of the above; wherein, the control method includes:

[0029] Start the transmission component to drive the drum to rotate until the rotation speed of the drum reaches the preset working speed; wherein, the preset working speed is 400 - 1000 revolutions per minute;

[0030] Pour the suspension into the feeding component at a constant speed and continue centrifuging for 3 - 5 minutes to filter out the liquid-phase component and the solid-phase component.

[0031] Compared with the prior art, the embodiments of the present invention have the following advantages:

[0032] The horizontal centrifuge disclosed in the present invention provides power through the transmission component to drive the drum to rotate in the housing, thereby centrifugally filtering the suspension in the drum. Specifically, the feeding component extends into the drum to add the suspension into the centrifugation chamber. During centrifugation, the liquid-phase product filters out from the sieve holes, and the solid-phase product detaches from the edge of the drum, achieving the effect of solid-liquid separation. An isolation component is arranged at the opening position to form an annular gap, and the solid-phase product can pass through the annular gap and be discharged by means of the thrust generated by centrifugation. Therefore, after the annular gap is filled with the solid-phase product, the entire centrifugation chamber forms a closed environment, thereby preventing aerosol particles from overflowing. Finally, the aerosol particles can only precipitate in the centrifugation chamber and flow out from the sieve holes, achieving excellent solid-phase and liquid-phase separation effects. Description of the Drawings

[0033] To more clearly illustrate the technical solutions in the embodiments of the present invention or in the prior art, the following will briefly introduce the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some embodiments recorded in the present invention. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can also be obtained based on these drawings.

[0034] Figure 1 It is a schematic structural diagram of a horizontal centrifuge for suspension separation in the present invention;

[0035] Figure 2 For Figure 1 a partial enlarged view at position A in;

[0036] Figure 3 It is a flowchart of a control method for a horizontal centrifuge for suspension separation in the present invention.

[0037] Among them, 10, the housing; 20, the drum; 21, the centrifugal chamber; 22, the opening; 23, the sieve holes; 30, the transmission component; 31, the drive motor; 32, the rotating main shaft; 40, the feeding component; 41, the feeding pipe; 42, the feeding bowl; 43, the feeding cone; 50, the isolation component; 51, the disc; 511, the protrusion; 52, the flexible retaining ring; 53, the flushing pipe; 54, the water pump; 60, the annular gap; 70, the liquid collection chamber; 80, the leakage holes; 90, the solid collection chamber; 100, the collection port; 110, the liquid phase collector; 120, the solid phase collector. Detailed implementation manners

[0038] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0039] Due to manufacturing techniques and / or tolerances, changes in the shapes shown in the accompanying drawings may occur. Therefore, the examples described here are not limited to the specific shapes shown in the accompanying drawings, but include changes in shape that occur during manufacturing.

[0040] As used herein, the term "and / or" includes any one of the listed related items and any combination of any two or more items.

[0041] Although terms such as "first", "second", and "third" may be used herein to describe various components, parts, regions, layers, or sections, these components, parts, regions, layers, or sections are not limited by these terms. Rather, these terms are only used to distinguish one component, part, region, layer, or section from another. Thus, a first component, part, region, layer, or section as referred to in the examples described herein may also be referred to as a second component, part, region, layer, or section without departing from the teachings of the examples.

[0042] For ease of description, spatial relationship terms such as "above", "upper", "below", and "lower" may be used herein to describe the relationship of one element to another as shown in the figures. Such spatial relationship terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is flipped, an element described as "above" or "upper" relative to another element will then be "below" or "lower" relative to the other element. Thus, the term "above" includes both the orientations of "above" and "below" depending on the spatial orientation of the device. The device may be positioned in other ways as well, and the spatial relationship terms used herein will be interpreted accordingly.

[0043] The terms used herein are for the purpose of describing various examples only and are not intended to limit the disclosure. Unless the context clearly dictates otherwise, the singular forms are also intended to include the plural forms. The terms "comprises", "comprising", and "having" list the stated features, quantities, operations, components, elements, and / or combinations thereof that exist, but do not preclude the existence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof.

[0044] As Figure 1 and Figure 2As shown in the figure, in an embodiment of the present invention application, a horizontal centrifuge for suspension separation is disclosed. The horizontal centrifuge includes a housing 10, a drum 20, a transmission component 30, a feeding component 40, and a separating component 50. The drum 20 is disposed within the housing 10. The drum 20 is hollow and forms a centrifugal chamber 21. An opening 22 is formed on one side of the centrifugal chamber 21. Sieve holes 23 are provided on the annular side wall of the drum 20 for solid-liquid separation of the suspension. The transmission component 30 is disposed within the housing 10. The transmission component 30 is connected to the drum 20 and is used to drive the drum 20 to rotate. The feeding component 40 is disposed within the housing 10. One end of the feeding component 40 extends outside the housing 10, and the other end extends into the centrifugal chamber 21 from the opening 22 for introducing the suspension. The separating component 50 is nested on the feeding component 40. The separating component 50 is flush with the opening 22, and the outer edge of the separating component 50 is close to the inner wall of the drum 20. An annular gap 60 is formed between the separating component 50 and the drum 20, and the annular gap 60 is used to filter out the solid-phase product.

[0045] The horizontal centrifuge disclosed in this embodiment provides power through the transmission component 30 to drive the drum 20 to rotate within the housing 10, thereby centrifugally filtering the suspension within the drum 20. Specifically, the feeding component 40 extends into the drum 20 to add the suspension into the centrifugal chamber 21. When adding the suspension, liquid-phase aerosol particles are likely to form at the outlet of the feeding component 40.

[0046] During the centrifugation process, the liquid-phase product is filtered out from the sieve holes 23, and the solid-phase product detaches from the edge of the drum 20, achieving the effect of solid-liquid separation. By setting the separating component 50 at the position of the opening 22 to form the annular gap 60, the solid-phase product can pass through the annular gap 60 and be discharged by means of the thrust generated by centrifugation. Therefore, after the annular gap 60 is filled with the solid-phase product, the entire centrifugal chamber 21 forms a closed environment, thereby preventing the aerosol particles from overflowing. Eventually, the aerosol particles can only precipitate within the centrifugal chamber 21 and flow out from the sieve holes 23. The output quality of the solid-phase product is high, achieving an excellent solid-liquid separation effect.

[0047] As Figure 1 shown, as another embodiment of the present application, it is disclosed that the transmission component 30 includes a drive motor 31 and a rotating main shaft 32. The rotating main shaft 32 is inserted into the housing 10. One end of the rotating main shaft 32 is connected to the drive motor 31, and the other end is connected to the drum 20. The drive motor 31 is a variable-frequency motor.

[0048] The horizontal centrifuge disclosed in this embodiment can be used for solid-liquid separation of a high-viscosity suspension. The drive motor 31 is set as a variable frequency motor. By adjusting the speed of the motor, differential centrifugation can be performed to meet various centrifugation requirements in bioprocessing.

[0049] like Figure 1 and Figure 2 As shown, as another embodiment of the present application, the isolation component 50 is disclosed to include a disc 51 and a flexible baffle ring 52, wherein the disc 51 is nested on the feeding component 40; the flexible baffle ring 52 is nested on the disc 51; and the annular gap 60 is formed between the outer edge of the flexible baffle ring 52 and the inner wall of the rotating drum 20.

[0050] The disk 51 disclosed in this embodiment can be fixed on the feeding component 40 by welding, bonding, clamping, etc., and the flexible retaining ring 52 can be fixed on the outer edge of the disk 51 by bonding, welding, etc. The isolation component 50 is manufactured in a split manner, so that the disk 51 at the center provides a supporting force, so that the isolation component 50 maintains a stable shape and covers the opening 22 with a large area to prevent aerosol particles from overflowing.

[0051] At the same time, the flexible baffle ring 52 can produce a slight deformation under pressure. When the solid phase product passes through the annular gap 60, it can push the flexible baffle ring 52, causing the flexible baffle ring 52 to bend slightly, thereby increasing the width of the annular gap 60, so as to increase the discharge speed of the solid phase product and improve work efficiency. In addition, when the flexible baffle ring 52 is bent, the contact area between the solid phase product and the flexible baffle ring 52 is larger, so the annular gap 60 is filled more tightly, increasing the air tightness in the centrifugal chamber 21, further preventing the overflow of aerosol particles, and improving the output quality of the solid phase product.

[0052] Specifically, as another embodiment of the present application, it is disclosed that the disc 51 is a plastic disc 51. In this embodiment, resin materials such as polyvinyl chloride, polyethylene, and polypropylene can be used to directly produce the disc 51 through mold molding. By utilizing the advantages of plastic such as light weight, good stability, and not easy to deform, the disc 51 can play a role in blocking aerosols for a long time. In addition, the flexible baffle ring 52 disclosed in this embodiment includes any one of a rubber ring, a silicone ring, a latex ring, a polyethylene ring, and a polyvinyl chloride ring. By making the flexible baffle ring 52 from materials such as rubber, latex, silicone, polyethylene, and polyvinyl chloride, the weight of the equipment can be further reduced. In addition, the disc 51 and the flexible baffle ring 52 can be made of the same material to facilitate connection, or integral molding.

[0053] like Figure 2As shown, as another embodiment of the present application, it is disclosed that the thickness of the flexible retaining ring 52 gradually decreases in the direction towards the annular gap 60. In this embodiment, the cross-sectional shape of the flexible retaining ring 52 is set as a trapezoid or a triangle. Along the direction towards the annular gap 60, the flexible retaining ring 52 becomes thinner and thinner. Therefore, the structural rigidity decreases. When the solid-phase product moves into the annular gap 60, it is easier to push the flexible retaining ring 52 to deform, which is beneficial to reducing the resistance and enabling the solid-phase product to be discharged smoothly.

[0054] Specifically, as another embodiment of the present application, it is disclosed that the width of the annular gap 60 is 0 - 5 millimeters. The annular gap 60 disclosed in this embodiment is used for passing the solid-phase product and can be set to initially contact the inner wall of the drum 20, that is, the width is zero. In this case, the airtightness effect in the centrifugal chamber 21 is good. Only when the solid-phase product presses the flexible retaining ring 52, the annular gap 60 opens, and then the solid-phase product can be discharged. Otherwise, the opening 22 remains closed, achieving the effect of effectively preventing aerosol particles from overflowing. Of course, in the actual processing process, the centrifugal force generated by the centrifuge is small. For the convenience of discharging the solid-phase product, the width of the annular gap 60 can be set to be non-zero, but it cannot be too large. If the annular gap 60 is too wide, the solid-phase product cannot completely fill the annular gap 60, resulting in the overflow of aerosol particles. Specifically, the width of the annular gap 60 disclosed in this embodiment can be any value between 0 - 5 millimeters or the range between any two values, such as 1 millimeter, 2 millimeters, 3 millimeters, 4 millimeters, 5 millimeters, etc.

[0055] Again Figure 1 and Figure 2 As shown, as another embodiment of the present application, it is disclosed that a plurality of protrusions 511 are arranged at intervals on the disc 51, and all the plurality of protrusions 511 are arranged on one side of the disc 51 facing the centrifugal chamber 21. The isolation component 50 disclosed in this embodiment blocks aerosol particles in the centrifugal chamber 21. The concentration of the aggregated aerosol particles is large and it is easy to adhere to the disc 51, affecting the service life of the disc 51. Therefore, in this embodiment, a plurality of protrusions 511 are arranged on the surface of the disc 51 on the side facing the centrifugal chamber 21, making the surface of the disc 51 uneven, which is beneficial to liquid aggregation, thereby accelerating the confluence and dripping to the bottom of the centrifugal chamber 21 and being filtered out through the sieve holes 23, reducing the adsorption time on the surface of the disc 51.

[0056] As Figure 1 As shown, as another embodiment of the present application, it is disclosed that the feeding component 40 includes a feeding pipe 41, a feeding bowl 42, and a feeding cone 43; the feeding pipe 41 is arranged on the casing 10, one end of the feeding pipe 41 extends outside the casing 10 and is provided with the feeding bowl 42, and the other end extends into the centrifugal chamber 21 and is provided with the feeding cone 43.

[0057] The feeding component 40 disclosed in this embodiment is used to add the suspension. A feeding bowl 42 is provided to increase the cross-sectional area at the inlet, facilitating the rapid addition of the suspension and preventing side leakage. A cover plate can be provided on the feeding bowl 42, and the cover plate is covered after each feeding to avoid the backflow of the suspension.

[0058] Specifically, the feeding pipe 41 is fixed to the casing 10 by welding or clamping to maintain stability, avoid collision with the drum 20, and support the isolation component 50 at the same time. The feeding cone 43 is used to expand the outlet to facilitate the rapid outflow of the suspension. A protruding distribution cone can be synchronously provided on the inner wall of the drum 20, and the distribution cone is opposite to the feeding cone 43 to quickly guide the suspension flowing out of the feeding cone 43 to the annular side wall of the drum 20 and evenly disperse it, improving the efficiency of centrifugal filtration.

[0059] Another example Figure 1 As shown, the isolation component 50 disclosed in this embodiment includes a flushing pipe 53 and a water pump 54. The flushing pipe 53 is arranged on the outer surface of the feeding pipe 41 and extends along the length direction of the feeding pipe 41; the water pump 54 is arranged in the casing 10; one end of the flushing pipe 53 is connected to the water pump 54, and the other end extends to the side of the disc 51 facing the centrifugal chamber 21.

[0060] After each use of the drum 20 and the isolation component 50 disclosed in this embodiment, impurities will remain. Therefore, a water pump 54 and a flushing pipe 53 are provided to add water to the centrifugal chamber 21 for flushing to reduce impurity corrosion, facilitate repeated use, and extend the service life of the equipment. In addition, the flushing pipe 53 is arranged along the feeding pipe 41, which is beneficial to maintaining stability, avoiding shaking in the casing 10, facilitating rapid water injection, and avoiding affecting the collection of solid-phase products.

[0061] Specifically, in this embodiment, the flushing pipe 53 extends to the side of the disc 51 facing the centrifugal chamber 21. Therefore, the water flow rate can be controlled by the water pump 54. When the water flow rate is small, the water flows down along the surface of the disc 51, and the disc 51 can be quickly cleaned; when the water flow rate is increased, a water column is formed at the outlet of the flushing pipe 53, and the drum 20 can be flushed.

[0062] In summary, in this embodiment, the centrifugal chamber 21 is flushed by setting the flushing pipe 53 and the water pump 54, which is convenient for efficient maintenance of the equipment and beneficial to extending the service life of the equipment.

[0063] Another example Figure 1As shown in the figure, as another embodiment of the present application, it is disclosed that a sealed liquid collection chamber 70 is formed between the housing 10 and the drum 20, and a plurality of leakage holes 80 are formed at the bottom of the liquid collection chamber 70; at least a part of the housing 10 extends to the outside of the opening 22 to form a solid collection chamber 90, and the solid collection chamber 90 communicates with the annular gap 60; and a collection port 100 is formed at the bottom of the solid collection chamber 90; the horizontal centrifuge for separating suspensions includes a liquid phase collector 110 and a solid phase collector 120, the liquid phase collector 110 is connected to the bottom of the housing 10 and is disposed opposite to the leakage holes 80; the solid phase collector 120 is connected to the housing 10 and is disposed opposite to the collection port 100.

[0064] In this embodiment, a sealed space is formed between the housing 10 and the drum 20, so as to facilitate directly collecting the liquid phase product through the liquid phase collector 110. A part of the housing 10 outside the centrifugal chamber 21 blocks the opening 22 and combines with the isolation component 50 to form the solid collection chamber 90, so that the solid phase product falls into the solid phase collector 120 centrally after being discharged from the annular gap 60. Generally speaking, in this embodiment, the solid phase product and the liquid phase product are collected simultaneously, improving the working efficiency.

[0065] As Figure 3 shown in the figure, as another embodiment of the present application, a control method for a horizontal centrifuge for separating suspensions is disclosed, which is applied to the horizontal centrifuge for separating suspensions as described above; wherein, the control method includes:

[0066] S10. Start the driving component 30 to drive the drum 20 to rotate until the rotation speed of the drum 20 reaches the preset working speed; wherein, the preset working speed is 400 - 1000 revolutions per minute;

[0067] S20. Pour the suspension into the feeding component 40 at a constant speed, and continue centrifuging for 3 - 5 minutes to filter out the liquid phase component and the solid phase component.

[0068] In this embodiment, by first starting the drum 20 and then adding the suspension after reaching the preset working speed, the operation of solid - liquid separation can be quickly completed. During the entire centrifugation process, the aerosol particles in the centrifugal chamber 21 will not overflow. Finally, the aerosol particles can only precipitate in the centrifugal chamber 21 and flow out from the sieve holes 23, achieving an excellent solid - liquid separation effect.

[0069] It should be understood that each part of the present application can be implemented by hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. If implemented in hardware, as in another embodiment, any one or a combination of the following techniques well known in the art can be used: discrete logic circuits having logic gate circuits for implementing logical functions on data signals, application specific integrated circuits having appropriate combinational logic gate circuits, programmable gate arrays, field programmable gate arrays, and the like.

[0070] In addition, in each embodiment of the present application, each functional unit can be integrated in a processing module, can exist separately physically for each unit, or two or more units can be integrated in a module. The above integrated module can be implemented in the form of hardware or in the form of a software functional module. When the integrated module is implemented in the form of a software functional module and sold or used as an independent product, it can also be stored in a computer-readable storage medium.

[0071] In summary, the present application discloses a horizontal centrifuge for separating suspensions, which includes a housing 10, a drum 20, a transmission member 30, a feeding member 40, and a separating member 50. The drum 20 is disposed inside the housing 10; the drum 20 is hollow and forms a centrifugal chamber 21, and an opening 22 is formed on one side of the centrifugal chamber 21; sieve holes 23 are provided on the annular side wall of the drum 20, and the sieve holes 23 are used for solid-liquid separation of the suspension; the transmission member 30 is disposed in the housing 10; the transmission member 30 is connected to the drum 20 and is used to drive the drum 20 to rotate; the feeding member 40 is disposed in the housing 10; one end of the feeding member 40 extends out of the housing 10, and the other end extends into the centrifugal chamber 21 from the opening 22 and is used to introduce the suspension; the separating member 50 is nested on the feeding member 40; the separating member 50 is flush with the opening 22, and the outer edge of the separating member 50 is close to the inner wall of the drum 20; an annular gap 60 is formed between the separating member 50 and the drum 20, and the annular gap 60 is used to filter out the solid-phase product.

[0072] The horizontal centrifuge disclosed in this embodiment is powered by a transmission component, which drives the drum to rotate within the casing, thereby centrifugally filtering the suspension within the drum. Specifically, the feeding component extends into the drum to add the suspension into the centrifugation chamber. During centrifugation, the liquid-phase product filters out through the sieve holes, while the solid-phase product detaches from the edge of the drum, achieving the effect of solid-liquid separation. An isolation component is provided at the opening position to form an annular gap. The solid-phase product can pass through the annular gap and be discharged by virtue of the thrust generated by centrifugation. Therefore, after the annular gap is filled with the solid-phase product, the entire centrifugation chamber forms a closed environment, which can prevent aerosol particles from overflowing. Eventually, the aerosol particles can only precipitate within the centrifugation chamber and flow out through the sieve holes, achieving an excellent solid-liquid separation effect.

[0073] It should be noted that, without conflict, the embodiments in this application and the features in the embodiments can be combined with each other.

[0074] It should be noted that the present invention takes the horizontal centrifuge for suspension separation and its control method as an example to introduce the specific structure and working principle of the present invention. However, the application of the present invention is not limited to the horizontal centrifuge for suspension separation and its control method, and can also be applied to the production and use of other similar workpieces.

[0075] It should be understood that the present invention is not limited to the precise structure already described and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present invention is only limited by the appended claims.

[0076] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A horizontal centrifuge for suspension separation, characterized in that, Comprising: A casing; A rotating drum, disposed within the casing; the rotating drum is hollow, forming a centrifugal chamber, and an opening is formed on one side of the centrifugal chamber; Sieve holes are provided on the annular side wall of the rotating drum, and the sieve holes are used for solid-liquid separation of the suspension; A transmission component, disposed within the casing; the transmission component is connected to the rotating drum and is used to drive the rotating drum to rotate; A feeding component, disposed within the casing; one end of the feeding component extends outside the casing, and the other end extends into the centrifugal chamber from the opening and is used to introduce the suspension; And An isolation component, nested on the feeding component; the isolation component is flush with the opening, and the outer edge of the isolation component is close to the inner wall of the rotating drum; Wherein, an annular gap is formed between the isolation component and the rotating drum, and the annular gap is used to filter out the solid-phase product.

2. The horizontal centrifuge for suspension separation according to claim 1, characterized in that, The isolation component includes: A disc, nested on the feeding component; A flexible retaining ring, the flexible retaining ring is nested on the disc; and, the annular gap is formed between the outer edge of the flexible retaining ring and the inner wall of the rotating drum.

3. The horizontal centrifuge for suspension separation according to claim 2, wherein, The thickness of the flexible retaining ring gradually decreases in the direction towards the annular gap.

4. The horizontal centrifuge for suspension separation according to claim 2, characterized in that, A number of protrusions are spaced apart on the disc, and all of the a number of protrusions are provided on the side of the disc facing the centrifugal chamber.

5. The horizontal centrifuge for suspension separation according to claim 2, wherein, The feeding component includes a feeding pipe, a feeding bowl and a feeding cone; the feeding pipe is disposed on the casing, one end of the feeding pipe extends outside the casing and is provided with the feeding bowl, and the other end extends into the centrifugal chamber and is provided with the feeding cone; The isolation component includes a flushing pipe and a water pump, the flushing pipe is disposed on the outer surface of the feeding pipe and extends along the length direction of the feeding pipe; the water pump is disposed within the casing; Wherein, one end of the flushing pipe is connected to the water pump, and the other end extends to the side of the disc facing the centrifugal chamber.

6. The horizontal centrifuge for suspension separation according to claim 2, characterized in that, The disc is a plastic disc; and / or, the flexible retaining ring includes any one of a rubber ring, a silica gel ring, a latex ring, a polyethylene ring, and a polyvinyl chloride ring.

7. The horizontal centrifuge for suspension separation according to any one of claims 1 to 6, characterized in that, The width of the annular gap is 0 - 5 millimeters.

8. The horizontal centrifuge for suspension separation according to any one of claims 1 to 6, characterized in that, A sealed liquid collection chamber is formed between the casing and the rotating drum, and a number of leakage holes are formed at the bottom of the liquid collection chamber; At least a part of the casing extends to the outside of the opening to form a solid collection chamber, the solid collection chamber is communicated with the annular gap; and, a collection port is formed at the bottom of the solid collection chamber; The horizontal centrifuge for separating the suspension includes a liquid-phase collector and a solid-phase collector, the liquid-phase collector is connected to the bottom of the casing and is disposed opposite to the leakage holes; the solid-phase collector is connected to the casing and is disposed opposite to the collection port.

9. The horizontal centrifuge for suspension separation according to claim 1, characterized in that, The transmission component includes a driving motor and a rotating main shaft, the rotating main shaft is inserted on the casing, one end of the rotating main shaft is connected to the driving motor, and the other end is connected to the rotating drum; the driving motor is a variable-frequency motor.

10. A control method for a horizontal centrifuge used for suspension separation, applied to the horizontal centrifuge for suspension separation according to any one of claims 1 to 9; characterized in that, The control method includes: Starting the transmission component to drive the rotating drum to rotate until the rotational speed of the rotating drum reaches a preset working rotational speed; wherein, the preset working rotational speed is 400 - 1000 revolutions per minute; Pour the suspension into the feeding component at a uniform speed and centrifuge for 3 - 5 minutes continuously to filter out the liquid phase component and the solid phase component.

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