A filtering device for the production of fruit clear juice beverages

Abstract

The present application relates to the technical field of beverage production, and in particular to a filtering device for fruit juice beverage production, which realizes technical breakthrough through multi-stage cooperative filtering and dynamic self-cleaning mechanism. The device adopts a three-stage progressive structure; the input end of the front-stage separation shell is connected with a funnel-shaped feed hopper, the inside of which has a metal grid front-stage separation barrier to intercept large impurities, and a multi-layer filtering medium front-stage filtering module to realize preliminary multi-stage filtering. The output end of the front-stage filtering module is connected with a secondary filtering unit, which is inclined and has a detachable secondary filtering bottom cabin to facilitate interception of small particles. The output end is connected with a three-stage fine filtering unit through the front-stage filtering module, and is connected with a split conveying assembly. The three-stage fine filtering unit is a sealed cavity, and the split conveying assembly contains branch pipelines or flow guides to uniformly distribute the juice to a terminal fine filtering mechanism using nanoscale filter membranes to complete the final filtering and realize efficient filtering of fruit juice beverage.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of beverage production, in particular to a filtering device for fruit juice beverage production. BACKGROUND

[0002] In the fruit juice beverage production process, the filtering link is the key step to remove the pulp residue, fiber and other impurities in the juice, and its efficiency directly affects the product quality. The filtering link has a decisive influence on the clarity of the product, the control of microorganisms and the shelf life. The fruit juice filtering device in the prior art generally adopts a static filter membrane structure, impurities accumulate on the membrane surface to form an irreversible pollution layer, the flux decay rate is as high as 50% / cycle, and at the same time, it also lacks the ability of fluid dynamic regulation, uneven shunting causes local membrane pressure overload, which shortens the service life of the filter element and causes quality fluctuations. SUMMARY

[0003] The purpose of the present application is to provide a filtering device for fruit juice beverage production to solve the problems raised in the background.

[0004] To achieve the above purpose, the present application provides the following technical scheme:

[0005] A filtering device for fruit juice beverage production, comprising a base mounting plate, a front-stage separation shell, a secondary filtering unit and a tertiary fine filtering unit are mounted on the base mounting plate;

[0006] The input end of the front-stage separation shell is provided with a feeding hopper, and the box body of the front-stage separation shell is provided with a front-stage separation grid and a front-stage filtering module at the tail end, and the output end of the front-stage filtering module is in fluid communication with the secondary filtering unit;

[0007] The secondary filtering unit is inclined, and a secondary filtering bottom cabin is arranged in the secondary filtering unit, and the output end of the secondary filtering bottom cabin is provided with a front-stage filtering module and connected to the box body of the tertiary fine filtering unit;

[0008] The tertiary fine filtering unit is provided with a shunt conveying assembly, and the output end of the secondary filtering unit is connected to the input end of the shunt conveying assembly.

[0009] As a further scheme of the present application, the feeding hopper comprises a main feeding channel and a flow guide upper cover, the main feeding channel is fixedly installed on the top of the front-stage separation shell through a support structure, and the flow guide upper cover is hingedly installed on the input port of the top of the front-stage separation shell;

[0010] The main feeding channel is provided with a supporting plate along the side, and the supporting plate is provided with a pushing actuator for driving the opening and closing of the flow guide upper cover.

[0011] As a further scheme of the present application: the front-stage separation shell comprises a tangential cyclone cavity, a top cover support plate is fixed on the top of the tangential cyclone cavity, and the bottom is supported on the base mounting plate through a support member;

[0012] The front-stage separation partition grid separates the inner cavity of the front-stage separation shell into a tangential cyclone cavity and a liquid phase compartment;

[0013] The output end of the front-stage separation shell is provided with a discharge interface, the discharge interface is communicated with the liquid phase compartment through an embedded pipeline, and the input end of the front-stage filtration module is docked.

[0014] As a further scheme of the present application: the front-stage filtration module comprises a flow guide cavity, a flow guide channel and a discharge pump body are arranged in the flow guide cavity;

[0015] A plurality of filtration assemblies are arranged in the flow guide channel along the path thereof, and a filter medium sheet is arranged on each filtration assembly;

[0016] Positioning protrusions are arranged on the two inner side walls of the flow guide channel, and the filter medium sheet is detachably mounted on the positioning protrusions.

[0017] As a further scheme of the present application: the secondary filtration unit comprises a double-cavity frame and an embedded support plate fixedly arranged in the inside thereof, and a liquid collecting tank is arranged at the input end of the double-cavity frame;

[0018] The secondary filtration bottom cabin comprises a filtrate collecting box, the filtrate collecting box is arranged at the bottom of the double-cavity frame, and the top thereof is spaced from the embedded support plate through a porous support plate;

[0019] The end of the liquid collecting tank is overlapped on the surface of the porous support plate, and a filter core combination is arranged on the porous support plate.

[0020] As a further scheme of the present application: the filter core combination comprises a skeleton support net and a separation membrane layer wrapped on the surface thereof;

[0021] A driving mechanism is arranged at the center line position of the skeleton support net, the driving end of the driving mechanism extends into the inner cavity of the filtrate collecting box and drives a plurality of helical propellers arranged at equal angles in a spiral shape.

[0022] As a further scheme of the present application: the shunt conveying assembly comprises a liquid distributor shell and a plurality of conveying pipe bodies, the input end of the liquid distributor shell is docked with the output port of the filtrate collecting box;

[0023] The box body of the tertiary precision filtration unit is provided with a precision filtration cavity frame, the bottom plate of the precision filtration cavity frame is provided with a filter membrane plate layer, and the filtered filtrate is output to the collecting device at the bottom of the box body.

[0024] As a further scheme of the present application: a plurality of isolation partitions are arranged inside the fine filtering cavity frame along the lengthwise centerline direction of the frame, and the isolation partitions divide the inner cavity of the fine filtering cavity frame into a plurality of filtering sub-cavities.

[0025] A vertically arranged filtering partition of a curved structure is arranged in each filtering sub-cavity, and the vertically arranged filtering partition divides the corresponding filtering sub-cavity into an inner filtrate area and an outer peripheral flow guiding area.

[0026] As a further scheme of the present application: the input end of the conveying pipe body is swingably inserted and mounted in the distributor housing, and the output end of the conveying pipe body is connected to the frame wall of the vertically arranged filtering partition through a swing connecting rod.

[0027] The conveying pipe body is connected to the frame wall of the vertically arranged filtering partition through a swing connecting rod.

[0028] Fastening pieces are arranged between adjacent conveying pipe bodies.

[0029] As a further scheme of the present application: a stroke adjuster is mounted on the distributor housing, and the driving end of the stroke adjuster is connected to the top of the conveying pipe body through a linkage support.

[0030] A base plate and a support plate are arranged at the bottom of the three-stage fine filtering unit, the fine filtering cavity frame fixing frame is arranged on the base plate, and the support plate supports the base plate through vibration isolation springs.

[0031] A counterweight balance rod is further arranged on the fine filtering cavity frame, and high-frequency excitation devices are arranged at the two ends of the counterweight balance rod.

[0032] Compared with the prior art, the present application has the following beneficial effects:

[0033] The present application constructs a fruit juice fine filtering system integrating multi-stage progressive filtering and dynamic self-cleaning mechanism, and breaks through the technical bottleneck of low efficiency and easy clogging of the traditional filtering device. The front end realizes efficient solid-liquid separation through a multi-stage collaborative filtering architecture, greatly reducing the subsequent filtering load; the secondary filtering stage introduces a dynamic spiral propulsion mechanism to form a persistent mechanical disturbance on the surface of the filter membrane, synchronously driving the filter liquid permeation and impurity separation, solving the problem of flux decay caused by impurity accumulation in the traditional static filtering; the three-stage fine filtering unit adopts a partition isolation and curved filtering partition design, combined with the horizontal oscillation shear force generated by the high-frequency excitation device, effectively destroying the pollution layer on the surface of the filter membrane, and significantly improving the effective utilization rate and service life of the molecular sieve filter membrane.

[0034] Secondly, in terms of fluid dynamic regulation, the linkage structure of the swingable conveying pipe body and the stroke adjuster is unique, which adjusts the flow distribution angle and liquid distribution path in real time according to the viscosity of the fruit juice, ensures the flow balance of each filtering sub-cavity, and avoids local overload; at the same time, the design of the distributor housing and the multi-pipe parallel conveying realizes zero pressure loss flow distribution, and the double-layer vibration isolation bottom plate absorbs high-frequency vibration energy, so that the system maintains stable operation at low energy consumption.

[0035] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application, as claimed. BRIEF DESCRIPTION OF DRAWINGS

[0036] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and serve to explain the principles of the application. Together with the general description of the application given above, the drawings serve to explain principles of the application. The drawings and text are not intended to limit the scope of the application in any way.

[0037] Figure 1 The overall structure schematic diagram of the filtering device for fruit clear juice beverage production provided by the embodiment of the application.

[0038] Figure 2 The top view schematic diagram of the filtering device for fruit clear juice beverage production provided by the embodiment of the application.

[0039] Figure 3 The structure schematic diagram of the front-stage separation shell and the feed hopper provided by the embodiment of the application.

[0040] Figure 4 The structure schematic diagram of the front-stage filtering module provided by the embodiment of the application.

[0041] Figure 5 The structure schematic diagram of the secondary filtering unit provided by the embodiment of the application.

[0042] Figure 6 The structure schematic diagram of the shunt conveying assembly provided by the embodiment of the application.

[0043] Figure 7 The internal structure schematic diagram of the tertiary fine filtering unit provided by the embodiment of the application.

[0044] In the figure: 1, base mounting plate; 2, pre-separation shell; 21, tangential cyclone cavity; 22, liquid phase compartment; 24, foot member; 25, top cover support plate; 26, discharge interface; 3, secondary filtering unit; 31, double-cavity frame; 32, built-in support plate; 33, liquid collection tank; 4, secondary filtration bottom cabin; 41, filtrate collection box; 42, porous support plate; 43, filter core assembly; 44, skeleton support net; 45, separation membrane layer; 46, driving mechanism; 47, spiral propeller; 5, feed hopper; 51, main feed channel; 52, bracket structure; 53, support plate member; 54, flow guide upper cover; 55, pushing actuator; 6, pre-separation partition grid; 7, pre-filtering module; 71, flow guide cavity; 72, flow guide channel; 73, filtering assembly; 74, filter medium sheet; 75, positioning protrusion; 76, discharge pump body; 8, shunt delivery assembly; 81, distributor shell; 82, delivery pipe body; 83, fastening sheet; 84, fixed crosspiece; 85, stroke adjuster; 86, linkage bracket; 9, tertiary precision filtering unit; 91, precision filtering cavity frame; 92, isolation partition plate; 93, filtering branch cavity; 94, vertical filtering partition; 95, inner layer filtrate area; 96, peripheral flow guide area; 97, swing connecting rod; 101, base bottom plate; 102, support bottom plate; 103, vibration isolation spring; 104, counterweight balance bar; 105, high-frequency exciter. DETAILED DESCRIPTION

[0045] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and the embodiments are shown in the drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated.

[0046] Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present application.

[0047] The specific implementation of the present application will be described in detail below in combination with specific embodiments.

[0048] Embodiment one, please refer to Figure 1 and Figure 2The utility model provides a filter device for fruit juice beverage production, including base mounting plate 1, which is made of solid metal material and is used for fixing and supporting the stability of the whole device. A front separation shell 2, a secondary filter unit 3 and a tertiary fine filter unit 9 are installed on the base mounting plate 1, wherein the front separation shell 2 is located at the initial position of the base mounting plate 1, the secondary filter unit 3 is arranged in a horizontal direction to facilitate fluid flow, and the tertiary fine filter unit 9 is located at the end of the filtration path. A feed hopper 5 is connected to the input end of the front separation shell 2, which is designed as a funnel shape to facilitate the feeding operation of fruit juice. The inside of the box of the front separation shell 2 is provided with a front separation grid 6 and a front filter module 7. The front separation grid 6 is installed near the inlet of the box in a metal grid structure and is used for preliminary interception of larger solid impurities, and the front filter module 7 is located at the end of the box and includes multiple layers of filter media such as activated carbon or microporous filter cloth to realize the function of preliminary multi-stage filtration. The output end of the front filter module 7 is in fluid communication with the secondary filter unit 3 through a pipeline or a direct interface, ensuring seamless transition of the juice from primary filtration to secondary filtration. The secondary filter unit 3 has an inclination angle of 20-45 degrees, which is beneficial to gravity-assisted liquid flow, and it is internally integrated with a secondary filter bottom cabin 4, which is designed to be detachable to intercept smaller particles. The output end of the secondary filter bottom cabin 4 is installed with the front filter module 7 and enters the box of the tertiary fine filter unit 9 through this structure; in addition, the output end of the secondary filter unit 3 is directly connected to the input end of a shunt conveying assembly 8 in the tertiary fine filter unit 9, forming a fluid guiding path. The box of the tertiary fine filter unit 9 is a sealed cavity, and it is internally provided with the shunt conveying assembly 8, which includes branch pipelines or flow guides for uniformly distributing the juice to the terminal filtration area. The tertiary fine filter unit 9 is also provided with a terminal fine filter mechanism, which uses nanoscale filter membranes or molecular sieve materials to complete the final filtration treatment.

[0049] The device is installed on the base mounting plate 1 as a whole, has a compact structure, is convenient for maintenance and component replacement, improves operation stability and service life. The connection design of the front filter module 7 of the secondary filter bottom cabin 4 further enhances the continuity of filtration and reduces energy consumption.

[0050] The fruit juice is first input into the pre-separation shell 2 through the feeding hopper 5, and is preliminarily separated by the pre-separation screen 6 in the tank to filter out large-particle fruit dregs or suspended matter. Subsequently, the juice flows into the pre-filtering module 7, and is subjected to multiple filtering steps to form a primary filtrate, which is then guided to the secondary filtering unit 3. In the secondary filtering unit 3, the juice enters the secondary filtering bottom cabin 4 to perform secondary filtering to remove medium-size impurities and colloidal substances; after the secondary filtering, the juice is input into the tank of the tertiary precision filtering unit 9 through the output end of the secondary filtering bottom cabin 4, and is uniformly guided into different areas of the tertiary precision filtering unit 9 by the shunt conveying assembly 8. In the tertiary precision filtering unit 9, the juice completes the terminal filtering operation, including deep precision filtering and sterilization, and finally outputs the clarified fruit juice product. During the whole process, the juice flow is driven by gravity or auxiliary pump pressure to ensure efficient and continuous processing.

[0051] The technical principle of the filtering device in this embodiment is based on a multi-stage progressive filtering mechanism. The pre-separation screen 6 preliminarily separates impurities by using the physical screening principle to reduce the subsequent load; the pre-filtering module 7 realizes primary purification by multiple adsorption and interception to reduce liquid turbidity. The inclined design of the secondary filtering unit 3 in combination with the fine structure of the secondary filtering bottom cabin 4 utilizes the principles of sedimentation and micropore filtration to perform secondary impurity removal and improve filtering precision. The shunt conveying assembly 8 plays a role in uniform distribution in the tertiary precision filtering unit 9 to prevent flow concentration from causing a decrease in filtering efficiency, while the terminal precision filtering adopts molecular-level barrier technology to completely remove residual particles and microorganisms. The overall structural design follows fluid mechanics optimization, reduces pressure drop loss through cascade connection, ensures smooth juice flow, and realizes gradient improvement from coarse filtering to precision filtering.

[0052] The combination of the pre-separation screen 6 and the pre-filtering module 7 can efficiently separate large-size impurities and reduce the risk of clogging; the inclined layout of the secondary filtering unit 3 in combination with the secondary filtering bottom cabin 4 optimizes the secondary filtering efficiency, especially when processing high-viscosity fruit juice, which can enhance impurity sedimentation and removal rate; uniform distribution is realized through the shunt conveying assembly 8 of the tertiary precision filtering unit 9 to improve terminal filtering precision, ensure high clarity and purity of the fruit juice, and meet beverage production standards; the device can be widely applied to fruit juice beverage production lines to realize automated and efficient filtering.

[0053] Embodiment two, please refer to Figure 1 , Figure 3 and Figure 4As a further scheme of the present application, the feeding hopper 5 comprises a main feeding channel 51 and a flow guide upper cover 54; wherein the main feeding channel 51 is in a funnel structure, made of stainless steel, fixed on the top of the pre-separation shell 2, and installed by welding or bolt connection through a support structure 52; the flow guide upper cover 54 is a hinge cover that can be opened and closed, installed on the input port of the top of the pre-separation shell 2, facilitating the control of feeding opening and closing; the side of the main feeding channel 51 extends a supporting plate 53, which is a metal bracket for supporting a pushing actuator 55; the pushing actuator 55 is a pneumatic or electric actuator, which controls the opening and closing action of the flow guide upper cover 54 through linear driving.

[0054] The structure of the pre-separation shell 2 includes a tangential cyclone chamber 21, which is designed as a circular or rectangular cavity, with a tangential inlet to generate centrifugal cyclone; the top of the tangential cyclone chamber 21 is fixed with a top cover support plate 25, which is a steel plate for strengthening structural stability; the bottom is welded to the base mounting plate 1 through a support member 24 to provide support; the pre-separation partition 6 is installed inside the pre-separation shell 2, made of mesh or grating material, separating the inner cavity into the tangential cyclone chamber 21 on the outside and the liquid phase compartment 22 on the inside; the output end of the pre-separation shell 2 is provided with a discharge interface 26, which is a flange or quick connector, connecting the internal fluid space of the liquid phase compartment 22 through an embedded pipeline, and sealingly docking with the input end of the pre-filtering module 7 to realize liquid transfer.

[0055] The extended structure of the pre-filtering module 7 includes a flow guide cavity 71, which is a rectangular sealed shell with a flow guide channel 72 inside, designed as a linear or multi-bend flow channel to guide the liquid to flow sequentially through each filtering unit; a plurality of filtering assemblies 73 are distributed along the flow path of the flow guide channel 72, each filtering assembly 73 is fixed with a filter medium sheet 74, which is a replaceable filter screen or filter cloth material; positioning protrusions 75 are provided on the two inner side walls of the flow guide channel 72, which are in the form of bosses or clamping grooves, allowing the filter medium sheet 74 to be detachably mounted thereon to optimize maintenance; the end of the flow guide channel 72 is provided with a discharge pump body 76, which is a centrifugal pump or screw pump, used to drive the liquid to flow to the next stage.

[0056] During operation, juice enters the front-stage separation shell 2 through the main feed channel 51; the feed pushing actuator 55 opens and closes the flow guide cover 54 according to the operation instruction to control the feed speed and sealing performance and prevent impurities from entering. In the tangential cyclone chamber 21, the front-stage separation partition 6 separates large-particle solid impurities into the liquid phase compartment 22 as a physical barrier to prevent solid backflow. The separated juice is output from the liquid phase compartment 22 to the front-stage filter module 7 through the discharge interface 26 and the built-in pipeline; in the flow guide channel 72, the juice sequentially flows through multiple filter assemblies 73, the filter medium sheets 74 perform preliminary adsorption and interception, and multi-stage filtration is achieved; the discharge pump body 76 actively pumps the juice to the outlet of the flow guide channel 72 to guide the subsequent secondary filter unit 3 and tertiary precision filter unit 9, and finally completes the impurity removal.

[0057] This embodiment is based on a multi-stage filtration mechanism. The array of filter assemblies 73 in the flow guide channel 72 adopts a sequential arrangement, and the gradient pore size design of the filter medium sheets 74 achieves step-by-step purification; the positioning protrusions 75 support the detachable structure to ensure high-precision filtration; the discharge pump body 76 provides power assistance to maintain a stable pressure difference to adapt to juice of different viscosities. The design of the flow guide channel 72 and the detachable filter medium sheets 74 of the front-stage filter module 7 facilitates quick replacement and maintenance, reduces downtime, and ensures stable flow to improve the reliability and filtration continuity of the overall device; ultimately, the energy consumption of juice processing is reduced and the product quality is improved.

[0058] Embodiment Three, please refer to Figure 1 , Figure 5 and Figure 6 , as a further scheme of the present application, the secondary filter unit 3 includes a double-cavity frame 31 of a metal frame structure, the inside of which is fixed with an internal support plate 32 by bolts, and the input end of the double-cavity frame 31 is provided with a V-shaped liquid collecting groove 33 for receiving the juice input by the front-stage filter module 7. The secondary filter bottom cabin 4 includes a rectangular filter liquid collecting box 41, which is arranged at the bottom of the double-cavity frame 31 and has an open top; a perforated support plate 42 is welded to the top edge of the filter liquid collecting box 41 and is arranged in parallel and spaced apart from the internal support plate 32 to form a filter chamber, and the spacing distance is 50-100 mm. The end of the liquid collecting groove 33 extends and overlaps on the surface of the perforated support plate 42, the surface of the perforated support plate 42 is uniformly provided with an array of through holes and is installed with a filter core assembly 43. The filter core assembly 43 adopts a cylindrical structure, including a skeleton support net 44 of stainless steel, and the surface of the skeleton support net 44 is covered with a separation membrane layer 45 of polytetrafluoroethylene; a driving mechanism 46 is embedded at the longitudinal center line position of the skeleton support net 44, the driving end of the driving mechanism 46 vertically extends into the inner cavity of the filter liquid collecting box 41 downward, the driving end is connected with a plurality of helical propellers 47 arranged at equal angles in a spiral shape through a shaft coupling, and the helical propellers 47 are made of 304 stainless steel.

[0059] The shunt delivery assembly 8 comprises an aluminum alloy distributor housing 81, the input end of which is sealed and connected to the output port of the side wall of the filtrate collection tank 41 through a flange; the output end of the distributor housing 81 is symmetrically connected to a plurality of delivery pipe bodies 82, which are distributed equidistantly along the radial direction to form a shunt array.

[0060] After the fruit juice treated by the pre-filtering module 7 is collected in the liquid collection tank 33, it flows uniformly to the surface of the porous support plate 42. When the juice penetrates the separation membrane layer 45 of the filter core assembly 43, secondary filtration is completed under the action of the micropores of the separation membrane layer 45, and the impurities are trapped on the surface of the separation membrane layer 45. At the same time, the driving mechanism 46 drives the spiral propeller 47 to rotate in the filtrate collection tank 41, and the downward thrust generated by the spiral blade promotes the filtrate to quickly pass through the porous support plate 42, while preventing the impurity layer on the surface of the separation membrane layer 45 from accumulating too thick. The filtered filtrate is temporarily stored in the filtrate collection tank 41, and then is distributed to the plurality of delivery pipe bodies 82 through the distributor housing 81, and is uniformly delivered to the three-stage precision filtration unit 9 after forming an equal flow shunt for subsequent processing.

[0061] The double-cavity frame 31 and the porous support plate 42 constitute a double-layer filtration support system in this embodiment, and the fluid distribution effect is optimized through physical spacing; the filter core assembly 43 is enhanced in rigidity by the skeleton support net 44, and the separation membrane layer 45 realizes the trapping of 0.1-10 μm impurities by using the micropore separation principle; the dynamic filtration mechanism designed in this embodiment produces a double effect through rotation: one is that the spiral propeller 47 forms a negative pressure gradient in the filtrate collection tank 41 to accelerate the filtration penetration efficiency, and the other is that the blade rotation disturbance effectively removes the impurity layer on the surface of the separation membrane layer 45, realizing the self-cleaning function. This embodiment is combined with embodiment two to improve the reliability and filtration continuity of the overall device; and finally the energy consumption of fruit juice processing is reduced and the product quality is improved.

[0062] Example Four, please refer to Figure 1 , Figure 6 and Figure 7As a further scheme of the application, the sealed box body of the tertiary fine filter unit 9 is provided with a fine filter cavity frame 91, which is formed by welding stainless steel, and the bottom plate of the fine filter cavity frame 91 is paved with a filter membrane plate layer with nanoscale pore size. The filtered filtrate is collected by the tank bottom liquid collecting groove and output. A plurality of isolation partitions 92 are fixedly installed inside the fine filter cavity frame 91 along the lengthwise center line direction. The isolation partitions 92 are vertical steel plates with flow guide holes, and the inner cavity of the fine filter cavity frame 91 is equally divided into a plurality of independent filter branch cavities 93. A vertical filter partition 94 with a curved structure is installed in each filter branch cavity 93, and the filter partition 94 is composed of a porous metal substrate and a molecular sieve filter membrane, which divides the corresponding filter branch cavity 93 into a central cylindrical inner layer filtrate area 95 and an annular outer peripheral flow guide area 96. The input end of the conveying pipe body 82 is swingably inserted into the distributor cavity of the distributor shell 81 through a rotating bearing, and the output end extends to the inner layer filtrate area 95. The side of the conveying pipe body 82 is hinged to the frame wall of the vertical filter partition 94 through a swing connecting rod 97 made of metal material, so as to realize the mechanical linkage of the pipe body and the partition. The adjacent conveying pipe bodies 82 are bolted through the arc-shaped fastening sheets 83 to enhance the overall rigidity. The top of the distributor shell 81 is provided with a stroke adjuster 85 (an electric or pneumatic push rod), and the driving end of the stroke adjuster 85 is connected to the top hinged points of the conveying pipe bodies 82 through a linkage support 86, so as to synchronously adjust the swing angle of the pipe bodies.

[0063] The bottom of the tertiary fine filter unit 9 adopts a double-layer structure design. The fine filter cavity frame 91 is fixedly connected to the base bottom plate 101, the base bottom plate 101 is elastically supported on the surface of the supporting bottom plate 102 through four groups of vibration isolation springs 103, and the supporting bottom plate 102 is welded to the base mounting plate 1. The counterweight balance bars 104 are symmetrically installed on both sides of the fine filter cavity frame 91, and high-frequency excitation devices 105 (electromagnetic or eccentric wheel driven) are arranged in the both ends of the bars to generate horizontal high-frequency micro-amplitude vibration.

[0064] The filtrate treated by the secondary filter unit 3 enters the distributor shell 81 and is uniformly distributed to each conveying pipe body 82. The stroke adjuster 85 drives the conveying pipe bodies 82 to periodically swing through the linkage support 86, and the output end of the conveying pipe bodies 82 moves dynamically in the inner layer filtrate area 95. The swing connecting rod 97 synchronously drives the vertical filter partition 94 to reciprocate and deflect in the inner layer filtrate area 95. The filtrate is injected into the inner layer filtrate area 95 from the output end of the conveying pipe body 82, and passes through the porous vertical filter partition 94 under the action of pressure. The impurities are intercepted by the molecular sieve filter membrane, and the purified liquid flows into the outer peripheral flow guide area 96 and is collected to the filter membrane plate layer at the bottom of the fine filter cavity frame 91 after terminal fine filtration, and is then output by the collecting device. When the high-frequency excitation device 105 operates, the horizontal vibration is transmitted to the fine filter cavity frame 91 through the counterweight balance bars 104, and the stable vibration frequency is maintained after the vibration is attenuated by the vibration isolation springs 103. The vibration energy effectively inhibits the deposition of impurities on the surface of the filter membrane, and improves the filtration efficiency.

[0065] The structure fuses dynamic distribution and vibration-enhanced filtration mechanism. The swingable design of the conveying pipe body 82 in the distributor housing 81 is combined with the stroke regulator 85 to regulate and realize the uniform distribution of the filtrate in three-dimensional space, adapt to the flow difference of different viscosity juices; the swing connecting rod 97 makes the vertical filter fence 94 periodically deflect, forming a periodic shear flow on the filter membrane surface, stripping the attached impurities; the multi-stage vibration isolation architecture precisely controls the vibration energy transmission path, ensuring that the horizontal vibration generated by the high-frequency exciter 105 only acts on the inside of the fine filtration cavity frame 91, destroying the adsorption force of impurities through inertial oscillation, and improving the filter membrane flux by more than 50%; the partition isolation design (isolation partition plate 92+outer peripheral flow guide area 96) of the filtration branch cavity 93 combined with the curved vertical filter fence 94 increases the effective filtration area by 30%, while optimizing the fluid turbulence level.

[0066] In this embodiment, the modular assembly composed of the fastening sheet 83 and the swingable conveying pipe body 82 supports quick disassembly and maintenance; the independent filtration branch cavity 93 formed by the isolation partition plate 92 can be cleaned or replaced online.

[0067] It is apparent for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be realized in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application.

[0068] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be combined appropriately to form other embodiments that those skilled in the art can understand.

Claims

1. A filtering device for fruit juice beverage production, comprising a base mounting plate (1) on which a pre-separation shell (2), an inclined secondary filtering unit (3) and a tertiary fine filtering unit (9) are mounted, characterized in that: the input end of the pre-separation shell (2) is provided with a feeding hopper (5), the box body of which is provided with a pre-separation partition grid (6) and a terminal pre-filtering module (7), and the output end of the pre-filtering module (7) is in fluid communication with the secondary filtering unit (3); the secondary filtering unit (3) is inclined, and the inside thereof is provided with a secondary filtering bottom cabin (4); the secondary filtering unit (3) comprises a double-cavity frame (31) and an inner supporting plate (32) fixedly arranged in the inside thereof; the secondary filtering bottom cabin (4) comprises a filtrate collecting box (41) arranged at the bottom of the double-cavity frame (31), and the top of the filtrate collecting box (41) is spaced from the inner supporting plate (32) by a porous supporting plate (42); the porous supporting plate (42) is provided with a filter core assembly (43), and the filter core assembly (43) is internally provided with a screw propeller (47) driven by a driving mechanism (46); the box body of the tertiary fine filtering unit (9) is provided with a fine filtering cavity frame (91), the inside of which is divided into a plurality of filtering branch cavities (93) by a partitioning partition plate (92), each filtering branch cavity (93) is provided with a vertical filtering partition (94) of a curved structure to divide an inner filtrate area (95) and a peripheral flow guiding area (96); the output end of the secondary filtering unit (3) is connected to the tertiary fine filtering unit (9) through a shunt conveying assembly (8), the input end of the shunt conveying assembly (8) is connected to the output port of the filtrate collecting box (41); the shunt conveying assembly (8) comprises a distributor shell (81) and a plurality of conveying pipe bodies (82), the input end of the distributor shell (81) is connected to the output port of the filtrate collecting box (41); the conveying pipe body (82) is swingably inserted into the distributor shell (81) at the input end thereof, and the output end thereof penetrates into the inner filtrate area (95); the distributor shell (81) is provided with a stroke adjuster (85), and the driving end of the stroke adjuster (85) is connected to the top of the conveying pipe body (82) through a linkage support (86); the tertiary fine filtering unit (9) is further provided with a terminal fine filtering mechanism, which adopts a nanometer filter membrane or a molecular sieve material to complete the final filtering treatment. The input end of the pre-separation shell (2) is provided with a feeding hopper (5), the box body of the pre-separation shell (2) is provided with a pre-separation partition grid (6) and a terminal pre-filtering module (7), and the output end of the pre-filtering module (7) is in fluid communication with the secondary filtering unit (3). The feeding hopper (5) comprises a main feeding channel (51) and a flow guiding upper cover (54), the main feeding channel (51) is fixedly mounted on the top of the pre-separation shell (2) through a support structure (52), and the flow guiding upper cover (54) is openably and closably mounted on the input port of the top of the pre-separation shell (2). ​ ​ ​ ​ ​ ​ ​ ​ 2. The filter device of claim 1, wherein: ​ 3. The filter device of claim 1, wherein: ​ The main feeding channel (51) side is provided with a supporting plate (53), and the supporting plate (53) is provided with a pushing executor (55) for driving the opening and closing of the flow guide upper cover (54).

4. The filter device of claim 1, wherein: The front-stage separation shell (2) comprises a tangential cyclone cavity (21), a top cover support plate (25) is fixed to the top of the tangential cyclone cavity (21), and the bottom is supported on the base mounting plate (1) through a support member (24); The front-stage separation partition grid (6) separates the inner cavity of the front-stage separation shell (2) into the tangential cyclone cavity (21) and the liquid phase compartment (22); The front-stage separation shell (2) is provided with a discharge interface (26) at the output end, the discharge interface (26) is communicated with the liquid phase compartment (22) through an embedded pipeline and is connected with the input end of the front-stage filtering module (7).

5. The filter device of claim 1, wherein: The front-stage filtering module (7) comprises a flow guide cavity (71), and the flow guide cavity (71) is provided with a flow guide channel (72) and a discharge pump body (76) therein; A plurality of filtering assemblies (73) are arranged in the flow guide channel (72) along the path thereof, and each filtering assembly (73) is provided with a filter medium sheet (74); Positioning protrusions (75) are arranged on the two inner side walls of the flow guide channel (72), and the filter medium sheet (74) is detachably mounted on the positioning protrusions (75).

6. The filter device of claim 1, wherein: The input end of the double-cavity frame (31) is provided with a liquid collecting tank (33), and the liquid collecting tank (33) is overlapped on the plate surface of the porous supporting plate (42) at the end.

7. The filter device of claim 1, wherein: The filter core combination (43) comprises a skeleton support net (44) and a separation membrane layer (45) wrapped on the surface thereof; A driving mechanism (46) is arranged at the center line position of the skeleton support net (44), and the driving end of the driving mechanism (46) extends into the inner cavity of the filtrate collecting box (41) and drives a plurality of helical propellers (47) arranged at equal angles in a helical shape.

8. The filter device of claim 1, wherein: The box body of the three-stage fine filtering unit (9) is provided with a fine filtering cavity frame (91), the bottom plate of the fine filtering cavity frame (91) is provided with a filter membrane plate layer, and the filtered filtrate is output to the collecting device at the bottom of the box body; A plurality of isolation partitions (92) are arranged inside the fine filtering cavity frame (91) along the length center line direction thereof, and the isolation partitions (92) separate the inner cavity of the fine filtering cavity frame (91) into a plurality of filtering branch cavities (93).

9. The filter device of claim 8, wherein: The side of the conveying pipe body (82) is connected to the frame wall of the vertical filtering partition (94) through a swing connecting rod (97); Fastening sheets (83) are arranged between adjacent conveying pipe bodies (82).

10. The filter device of claim 9, wherein: The three-stage fine filtering unit (9) is provided with a base bottom plate (101) and a supporting bottom plate (102) at the bottom, the fine filtering cavity frame (91) is fixedly arranged on the base bottom plate (101), and the supporting bottom plate (102) supports the base bottom plate (101) through a vibration isolation spring (103); The fine filtering cavity frame (91) is further provided with a counterweight balance rod (104), and the counterweight balance rod (104) is provided with a high-frequency exciter (105) at both ends.

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