Filtering device for beer production

Abstract

The invention relates to the technical field of beer filtering, and discloses a filtering device for beer production, the filtering device comprises a filtering tank body, a juice discharging pipe, a sealing cover filtering plate, a feeding pipe and a residue discharging pipe, the upper surface of a sealing cover is connected with a supporting assembly, the upper surface of the supporting assembly is connected with a power mechanism and a lifting mechanism, and the output end of the power mechanism is connected with a rotating assembly; the lifting mechanism is sleeved with the upper end of the rotating assembly, and the lower end of the rotating assembly penetrates through the upper surface of the sealing cover. According to the filtering device for beer production, by arranging the pressing plate, spent grains can be compacted by means of the pressing plate after primary filtering and secondary filtering, and the filtering effect is improved. By forming the through opening and sealing through the sealing assembly, the through opening can be opened in the normal filtering and stirring period, and normal filtering of spent grains and wheat juice is prevented from being hindered; similarly, when the spent grains need to be compacted, a complete plate can be formed only by blocking the through opening through the sealing assembly, and therefore the compacting effect is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of beer filtration, in particular to a filtration device for beer production. Background Art

[0002] The filtering device in beer production is used to remove solid particles (such as malt husks and other unwanted substances) from the wort to obtain pure wort liquid to ensure the quality and taste of the final product. The commonly used filtering device at present is the filter tank.

[0003] For example, the patent with announcement number CN206916112U discloses a filter tank for beer production, including a filter tank and a balance tank. A sieve plate is provided in the middle of the filter tank to divide the inside of the filter tank into two parts, upper and lower. The selected area of ​​the side wall above the sieve plate inside the filter tank has dense rows of holes, and the row hole area is surrounded and sealed by a collector. The collector has a conduit connected to the upper end of the balance valve, and the lower end of the balance valve has a conduit connected to the vortex sedimentation tank at the lower part of the tank body. The diameter of the row holes in the above-mentioned row hole area is 2 mm; the shape of the row hole area is circular or square; the position of the row hole area is 20 cm to 30 cm above the sieve plate.

[0004] However, the above filter tank still has the following problems in actual use:

[0005] After the saccharified wheat mixture is put into the filter tank, it is usually filtered through the bottom filter plate for the first time, and then poured with hot water to help dissolve and extract the remaining sugar in the spent grains for a second filtration (also known as spent grain washing). After the above two filtrations, although the sugar in the malt can be extracted to a greater extent and the utilization rate can be improved, there will still be a lot of water (sugar) remaining in the spent grains, which cannot be separated from the filter plate below, which can easily cause a waste of resources. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention provides a filtering device for beer production to solve the problem that after the primary filtration and the secondary filtration in the current filtering tank, a part of sugar still remains inside the spent grains and cannot be separated from the filter plate below, thereby causing a waste of resources.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a filtering device for beer production, comprising a filtering tank body, a juice discharge pipe installed at the lower end of the filtering tank body, a sealing cover installed at the upper end of the filtering tank body, a filter plate installed inside the filtering tank body, a feed pipe and a slag discharge pipe installed on the side wall of the filtering tank body, the upper surface of the sealing cover is connected to a supporting assembly, the upper surface of the supporting assembly is connected to a power mechanism and a lifting mechanism, the output end of the power mechanism is connected to a rotating assembly, the upper end of the rotating assembly is sleeved on the outside of the lifting mechanism, the lower end of the rotating assembly passes through the upper surface of the sealing cover and is connected to a telescopic assembly, the other end of the telescopic assembly is connected to a stirring assembly, and the lower end of the stirring assembly is connected to There is a scraping assembly, the output end of the lifting mechanism passes through the rotating assembly, the telescopic assembly and the stirring assembly, and is connected to a sliding column, the bottom surface of the sliding column is fixedly connected to a pressing plate, the upper surface of the pressing plate is penetrated with a plurality of through holes, the inner wall of the pressing plate is provided with a suction air cavity, the inner wall of the suction air cavity is slidably connected with a plurality of sealing assemblies, the plurality of sealing assemblies are respectively matched with the plurality of through holes, the suction air cavity is connected to the inside of the lifting mechanism, the bottom surface of the pressing plate abuts against the upper surface of the filter plate, the upper surface of the pressing plate abuts against the lower end of the scraping assembly, the side wall of the pressing plate is provided with a plurality of sliding openings, the inner wall of the filter tank body is fixedly connected with a plurality of spiral slide rails, the inner walls of the plurality of sliding openings are respectively slidably connected with the outer walls of the plurality of spiral slide rails.

[0008] Furthermore, the support assembly includes a support plate and several support rods, the bottom surfaces of the several support rods are fixedly connected to the upper surface of the sealing cover, the upper surfaces of the several support rods are fixedly connected to the bottom surface of the support plate, and the upper surface of the support plate is connected to the power mechanism and the lifting mechanism.

[0009] Furthermore, the power mechanism includes a rotating motor and a driving gear, the outer wall of the rotating motor is fixedly connected to the upper surface of the support plate, the output shaft of the rotating motor passes through the upper surface of the support plate and is fixedly connected to the inner wall of the driving gear, and the driving gear is connected to the rotating component.

[0010] Furthermore, the rotating assembly includes a driven gear and a connecting column, the bottom surface of the driven gear is fixedly connected to the upper surface of the connecting column, the lower end of the connecting column passes through the upper surface of the sealing cover, and the outer wall of the connecting column at one end inside the filter tank body is connected to the telescopic assembly, the driven gear and the connecting column are both sleeved on the outside of the lifting mechanism, and the driving gear is meshed with the driven gear.

[0011] Furthermore, the telescopic assembly includes an outer cover, an inner cover and a plurality of slide blocks. The inner wall of the upper surface of the outer cover is fixedly connected to the outer wall of the lower end of the connecting column. The inner wall of the outer cover is provided with a plurality of slide grooves. The plurality of slide blocks are fixedly connected to the outer wall of the upper end of the inner cover, and the outer walls of the plurality of slide blocks are respectively slidably connected to the inner walls of the plurality of slide grooves. The bottom surface of the inner cover is connected to the stirring assembly. The outer cover and the inner cover are both mounted on the outside of the lifting mechanism.

[0012] Furthermore, the stirring assembly includes a stirring column and several groups of stirring rods. The upper surface of the stirring column is fixedly connected to the bottom surface of the inner cover, the outer wall of the stirring column is fixedly connected to the upper ends of the several groups of stirring rods, the lower ends of the stirring rods are connected to the scraping assembly, and the stirring column is sleeved on the outside of the lifting mechanism.

[0013] Furthermore, the scraping assembly includes a connecting ring, a plurality of support bars and a plurality of scraping strips, the side wall of the connecting ring is fixedly connected to one end of the plurality of support bars, the bottom surfaces of the plurality of support bars are respectively fixedly connected to the upper surfaces of the plurality of scraping strips, wherein the upper surfaces of the plurality of support bars are respectively fixedly connected to the bottom surfaces of a plurality of groups of stirring rods, and the bottom surfaces of the plurality of scraping strips are all against the upper surface of the pressure plate.

[0014] Furthermore, an adjustment port is opened inside the sliding column, a movable port is opened on the side wall at the lower end of the stirring column, the inner wall at the upper end of the sliding column is slidably connected to the inner wall of the movable port, and the sliding height of the sliding column in the movable port is not less than the height between the scraper and the pressure plate.

[0015] Furthermore, the lifting mechanism includes a cylinder body, a transmission rod, a lifting rod and a suction air pipe. The outer wall of the cylinder body is fixedly connected to the upper surface of the support plate, the piston inside the cylinder body is fixedly connected to the upper end of the transmission rod, the lower end of the transmission rod is fixedly connected to the upper end of the lifting rod, the lower end of the lifting rod is rotatably connected to the inner wall of the middle part of the pressure plate, the transmission rod and the lifting rod both penetrate the driven gear, the connecting column, the outer cover, the inner cover and the stirring column, the side wall of the transmission rod is provided with an opening, the suction air pipe is located in the opening, and the upper end of the suction air pipe is located above the driven gear, the side wall of the lower end of the lifting rod is provided with a plurality of suction air ports, the inner wall of the middle part of the pressure plate begins to have a plurality of connecting ports, the suction air pipe, the suction air port, the connecting port and the interior of the suction air cavity are connected.

[0016] Furthermore, the sealing assembly includes a movable strip and a sealing plate, the outer wall of the movable strip is slidably connected to the inner wall of the suction air cavity, one side of the movable strip is fixedly connected to one side of the sealing plate, and the other end of the sealing plate passes through the side wall of the pressure plate and is slidably connected to the inner wall of the through opening.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. This kind of filtering device for beer production can compact the spent grains with the help of the pressing plate after primary filtration and secondary filtration by arranging a pressing plate inside the filtering tank body, thereby increasing the filtering effect;

[0019] 2. This kind of filtering device for beer production has a through hole on the pressing plate and seals it with a sealing component, so that the through hole can be opened during normal filtering and stirring to avoid hindering the normal filtering of spent grains and wort; similarly, when the spent grains need to be compacted, the through hole can be blocked by the sealing component to form a complete plate, thereby achieving a compaction effect;

[0020] 3. The filtering device for beer production has a sliding port on the pressing plate and a spiral slide rail on the inner wall of the filtering tank, so that the pressing plate can rotate itself when it follows the lifting mechanism, and cooperates with the scraping component to scrape the grain accumulated on the upper surface of the pressing plate from the opening when the pressing plate rises;

[0021] 4. This kind of filtering device for beer production, by arranging a telescopic component on the upper end of the stirring component, can ensure that the stirring component is supported without affecting its own rotation and stirring;

[0022] 5. This type of filtering device for beer production can control the lifting and lowering of the pressure plate when the spent grains need to be pressed down by setting a lifting mechanism; and a channel connected to an external air suction device can be set inside the lifting mechanism, so that air can be sucked into the inside of the pressure plate, thereby opening or blocking the opening through the sealing component. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall appearance of the present invention;

[0024] Figure 2 It is a schematic diagram of various structures inside the filter tank body of the present invention;

[0025] Figure 3 Schematic diagram of various structures inside the sealing cover of the present invention;

[0026] Figure 4 It is a detailed connection diagram of the lifting mechanism, power mechanism and support assembly of the present invention;

[0027] Figure 5 For the present invention Figure 4 The enlarged schematic diagram of point A in the middle;

[0028] Figure 6 It is a detailed connection diagram of the telescopic component, the stirring component and the scraping component of the present invention;

[0029] Figure 7 For the present invention Figure 6 The enlarged schematic diagram of point B in the middle;

[0030] Figure 8 Schematic diagram of various structures inside the pressure plate of the present invention;

[0031] Fig. 9 For the present invention Figure 8 Exploded diagram of each component in the diagram;

[0032] Fig.10 It is a schematic diagram of the upper section of the pressing plate of the present invention.

[0033] In the figure: 1. filter tank body; 2. feed pipe; 3. slag discharge pipe; 4. juice discharge pipe; 5. sealing cover; 6. support rod; 7. support plate; 8. rotating motor; 9. cylinder body; 10. driving gear; 11. driven gear; 12. stirring column; 13. moving port; 14. stirring rod; 15. pressing plate; 16. sliding port; 17. spiral slide rail; 18. through port; 19. sealing plate; 20. connecting ring; 21. supporting bar; 22. scraping bar; 23. outer cover; 24. connecting column; 25. transmission rod; 26. opening; 27. lifting rod; 28. suction air pipe; 29. ​​suction air port; 30. sliding block; 31. inner cover; 32. slide groove; 33. moving bar; 34. sliding column; 35. adjusting port; 36. suction air cavity; 37. connecting port; 38. filter plate. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0035] See also Figure 1-Figure 10 A filtering device for beer production comprises a filtering tank body 1, a juice discharge pipe 4 installed at the lower end of the filtering tank body 1, a sealing cover 5 installed at the upper end of the filtering tank body 1, a filtering plate 38 installed inside the filtering tank body 1, a feeding pipe 2 and a slag discharge pipe 3 installed on the side wall of the filtering tank body 1, a supporting assembly is connected to the upper surface of the sealing cover 5, a power mechanism and a lifting mechanism are connected to the upper surface of the supporting assembly, a rotating assembly is connected to the output end of the power mechanism, the upper end of the rotating assembly is sleeved on the outside of the lifting mechanism, the lower end of the rotating assembly passes through the upper surface of the sealing cover 5, and is connected to a telescopic assembly, the other end of the telescopic assembly is connected to a stirring assembly, the lower end of the stirring assembly is connected to a scraping assembly, the output end of the lifting mechanism passes through the rotating assembly, the telescopic assembly and the stirring assembly, and the lower end of the stirring assembly is connected to the stirring assembly. The filter tank body 1 has a plurality of spiral guide rails 17 fixedly connected to the bottom surface of the filter tank body 1, and the inner walls of the plurality of sliding ports 16 are respectively slidably connected to the outer walls of the plurality of spiral guide rails 17.

[0036] The present invention is a beer production filter device with a similar structure to the existing beer production filter device, such as the beer filter tank produced by Tiantai Beer Equipment Co., Ltd. Figures 1 to 10As shown, the filtering device for beer production in the present invention can filter and separate malt and juice according to the following steps:

[0037] 1. First, connect the feed pipe 2 to the external equipment (usually saccharification equipment), then seal the slag discharge pipe 3, and connect the juice discharge pipe 4 to the next process equipment (usually a boiling pot), and then open the filter tank 1 normally for filtering operation.

[0038] 2. When the material is passed into the filter tank body 1 , the pressing plate 15 is located above the filter plate 38 , and there is a certain degree of gap between them, which will not hinder the normal solid-liquid separation of the filter plate 38 .

[0039] 3. After the material is passed into the filter tank body 1, the wort therein will pass through the opening 18 and the filter holes on the filter plate 38 (this is the prior art and will not be described in detail), and will be transported to the next process from the juice discharge pipe 4 at the bottom of the filter tank body 1, while the solid malt will continue to exist above the filter plate 38 and the pressing plate 15.

[0040] 4. During the filtration period, in order to assist solid-liquid separation and improve filtration efficiency, the power mechanism is started through an external PLC controller (this is the prior art, so it is not described in detail).

[0041] 5. After the power mechanism is started, the output end will drive the rotating component to rotate. After the rotating component rotates, it will drive the telescopic component located inside the filter tank body 1 to rotate together. After the telescopic component rotates, it will drive the stirring component at the lower end to rotate together. During the rotation of the stirring component, the material inside the filter tank body 1 can be stirred.

[0042] 6. After completing the primary filtration and secondary filtration according to the above steps, in order to increase the collection of sugar in the wort, the lifting mechanism can be turned on through the PLC controller.

[0043] 7. After the lifting mechanism is started, one end located inside the filter tank body 1 will pull the pressing plate 15 from the lower end of the filter tank body 1 toward the upper end of the filter tank body 1, and the pressing plate 15 will push the stirring assembly to rise together during the rising process.

[0044] 8. When the stirring assembly rises, the telescopic assembly above will be retracted, thereby preventing the stirring assembly and the telescopic assembly from hindering the rise of the pressing plate 15.

[0045] 9. When the pressing plate 15 rises to above the grain grains that have been filtered for the second time, the lifting mechanism is connected to the external suction device (such as an air pump, which is a prior art and will not be described in detail) through the PLC controller. At this time, the suction device will instantly deliver gas to the suction cavity 36 of the pressing plate 15 through the lifting mechanism, and then several sealing components located in the suction cavity 36 can be pushed to the outside of the suction cavity 36, and the opening 18 can be sealed, so that the pressing plate 15 appears as a "whole".

[0046] 10. Then, the lifting mechanism is turned on again, and the lifting mechanism pushes the pressing plate 15 as a whole to descend, so that the sorghum grains below can be pressed onto the filter plate 38. During the pressing process, the remaining juice in the sorghum grains is squeezed out and continues to leak out from the filter holes on the filter plate 38, and is discharged from the juice drain pipe 4 to the next process.

[0047] Special mention should be made here:

[0048] 1. Because the pressing plate 15 is located at the bottom of the filter tank body 1 during the primary filtration and the secondary filtration, a part of the dregs may be accumulated on its upper surface when the pressing plate 15 rises. At this time, due to the several sliding openings 16 on the side wall of the pressing plate 15 and the several spiral slide rails 17 on the inner wall of the filter tank body 1, when the lifting mechanism pulls the pressing plate 15 to rise, the pressing plate 15 can only passively rotate due to the action of the sliding openings 16 and the spiral slide rails 17, and then during the rotation of the pressing plate 15, it can scrape with the scraping assembly at the lower end of the stirring assembly, so that the dregs accumulated on the surface can be scraped off from the opening 18 by the scraping assembly. (It should be specially noted here that: similarly, due to the action of the sliding openings 16 and the spiral slide rails 17, when the lifting mechanism does not drive the pressing plate 15 to rise and fall, the pressing plate 15 will be unable to rotate due to the restrictions of the sliding openings 16 and the spiral slide rails 17, and will not hinder the stirring assembly from stirring the inside of the filter tank body 1.)

[0049] 2. When the spent grains are compacted by the pressing plate 15, it is not limited to after the second filtration, nor is it limited to once. According to the filtration process and effect, one side can also be compacted after one filtration. In addition, the above steps can be repeated to improve the compaction efficiency.

[0050] As a preferred solution of the present invention, the support assembly includes a support plate 7 and a plurality of support rods 6, the bottom surfaces of the plurality of support rods 6 are fixedly connected to the upper surface of the sealing cover 5, the upper surfaces of the plurality of support rods 6 are fixedly connected to the bottom surface of the support plate 7, and the upper surface of the support plate 7 is connected to the power mechanism and the lifting mechanism.

[0051] More specifically, the support assembly is provided to provide support for the power mechanism and the lifting mechanism, while also providing a space of a certain height for the rotating assembly and when connecting with an external air suction device.

[0052] Specifically, when installing, it is only necessary to fix several support rods 6 to the sealing cover 5, and then the support plate 7 can be used to provide support for the power mechanism and the lifting mechanism. In addition, because the support rods 6 have a certain height, operating space can be provided for the rotating components and the external suction equipment.

[0053] As a preferred solution of the present invention, the power mechanism includes a rotating motor 8 and a driving gear 10. The outer wall of the rotating motor 8 is fixedly connected to the upper surface of the support plate 7. The output shaft of the rotating motor 8 passes through the upper surface of the support plate 7 and is fixedly connected to the inner wall of the driving gear 10. The driving gear 10 is connected to the rotating component.

[0054] More specifically, by providing a power mechanism, power can be provided to the stirring component, thereby stirring the material inside the filter tank body 1.

[0055] Specifically, when it is necessary to control the rotation of the stirring component, it is only necessary to start the rotating motor 8 through the external PLC controller. After the rotating motor 8 is started, the output shaft will drive the driving gear 10 to rotate, and after the driving gear 10 rotates, it can drive the rotating component to rotate.

[0056] As a preferred embodiment of the present invention, the rotating assembly includes a driven gear 11 and a connecting column 24, the bottom surface of the driven gear 11 is fixedly connected to the upper surface of the connecting column 24, the lower end of the connecting column 24 passes through the upper surface of the sealing cover 5, and the outer wall of the connecting column 24 at one end inside the filter tank body 1 is connected to the telescopic assembly, the driven gear 11 and the connecting column 24 are both sleeved on the outside of the lifting mechanism, and the driving gear 10 is meshed with the driven gear 11.

[0057] More specifically, by providing a rotating assembly, a transfer can be provided between the power mechanism and the telescopic assembly, because the lifting mechanism is installed at the center of the telescopic assembly and the power mechanism cannot be directly installed.

[0058] Specifically, when the driving gear 10 rotates, it will engage and drive the driven gear 11 to rotate. After the driven gear 11 rotates, it can drive the connecting column 24 to rotate on the inner wall of the sealing cover 5, and at the same time drive the telescopic component and the stirring component located below the sealing cover 5 (i.e., the filter tank body 1) to rotate.

[0059] As a preferred embodiment of the present invention, the telescopic assembly includes an outer cover 23, an inner cover 31 and a plurality of sliders 30. The inner wall of the upper surface of the outer cover 23 is fixedly connected to the outer wall of the lower end of the connecting column 24. The inner wall of the outer cover 23 is provided with a plurality of slide grooves 32. The plurality of sliders 30 are fixedly connected to the outer wall of the upper end of the inner cover 31, and the outer walls of the plurality of sliders 30 are respectively slidably connected to the inner walls of the plurality of slide grooves 32. The bottom surface of the inner cover 31 is connected to the stirring assembly. The outer cover 23 and the inner cover 31 are both sleeved on the outside of the lifting mechanism.

[0060] More specifically, by setting up a telescopic component, first, support can be provided to the stirring component to prevent the stirring component from falling due to lack of support; secondly, when the lifting mechanism drives the pressure plate 15 to rise and fall, the lifting and lowering of the stirring component can provide a change in distance without affecting the lifting and lowering of the stirring component.

[0061] Specifically, when the connecting column 24 rotates, the outer cover 23 is driven to rotate. After the outer cover 23 rotates, the inner cover 31 will also rotate together due to the limitation of the slider 30 and the slide groove 32. After the inner cover 31 rotates, it can drive the stirring assembly connected below to rotate.

[0062] Special mention should be made here:

[0063] 1. When the lifting mechanism pulls the pressing plate 15 upward, the pressing plate 15 will push the stirring assembly upward through the scraping assembly. After the stirring assembly rises, the inner cover 31 can be pushed to make the slider 30 at its upper end move vertically along the track of the slide groove 32, so that the inner cover 31 can be pushed back into the outer cover 23 for recycling.

[0064] 2. The number of inner covers 31 is not limited to one, but may be multiple groups, and the connection relationship between adjacent inner covers 31 is the same as the connection relationship between the outer cover 23 and the inner cover 31, both of which are achieved by the slider 30 moving up and down in the slide groove 32, but cannot rotate left and right.

[0065] As a preferred embodiment of the present invention, the stirring assembly includes a stirring column 12 and several groups of stirring rods 14, the upper surface of the stirring column 12 is fixedly connected to the bottom surface of the inner cover 31, the outer wall of the stirring column 12 is fixedly connected to the upper ends of the several groups of stirring rods 14, the lower ends of the stirring rods 14 are connected to the scraping assembly, and the stirring column 12 is sleeved on the outside of the lifting mechanism.

[0066] More specifically, by providing a stirring assembly, the filtering tank body 1 can rotate itself during the primary filtration and the secondary filtration, thereby assisting the filtration between malt and wort.

[0067] Specifically, when the outer cover 23 and the inner cover 31 rotate, the inner cover 31 will drive the stirring column 12 to rotate. After the stirring column 12 rotates, several groups of stirring rods 14 and scraping assemblies can be mobilized to rotate together, thereby achieving stirring of the spent grains.

[0068] As a preferred embodiment of the present invention, the scraping assembly includes a connecting ring 20, a plurality of support bars 21 and a plurality of scraping bars 22, the side wall of the connecting ring 20 is fixedly connected to one end of the plurality of support bars 21, the bottom surfaces of the plurality of support bars 21 are respectively fixedly connected to the upper surfaces of the plurality of scraping bars 22, wherein the upper surfaces of the plurality of support bars 21 are respectively fixedly connected to the bottom surfaces of a plurality of groups of stirring rods 14, and the bottom surfaces of the plurality of scraping bars 22 are all against the upper surface of the pressure plate 15.

[0069] More specifically, by providing a scraping assembly, not only can the sorghum grains accumulated on the upper surface of the pressing plate 15 be scraped so that they can slide from the through opening 18 to the bottom of the pressing plate 15; but also the stirring rod 14 can be used to stir the sorghum grains from below when the stirring rod 14 is stirring in the early stage.

[0070] Specifically, when the lifting mechanism pulls the pressing plate 15 upward, the pressing plate 15 itself will rotate due to the action of the sliding mouth 16 and the spiral slide rail 17, and the scraper bar 22 at this time will remain different relative to the stirring rod 14 due to the action of the supporting bar 21 and the connecting ring 20, so that the pressing plate 15 and the scraper bar 22 are in a state of relative rotation. Therefore, the wheat grains on the pressing plate 15 can be scraped by the scraper bar 22 from the through opening 18 to the bottom of the pressing plate 15.

[0071] Special mention should be made here:

[0072] 1. Although the pressing plate 15 can be raised and lowered, it is still located inside the malt grains within a certain distance. Therefore, in order to ensure that the malt grains on the upper surface of the pressing plate 15 can be scraped off to a greater extent by the scraping bars 22 during the upward rotation process, the number of scraping bars 22 should be greater. Therefore, a connecting ring 20 is provided between multiple support bars 21, and all the support bars 21 can be connected through the connecting ring 20.

[0073] 2. The length of the scraper bar 22 is greater than that of the support bar 21. Since the spiral slide rail 17 protrudes from the inner wall of the filter tank body 1, in order to avoid collision between the support bar 21 and the spiral slide rail 17, a softer scraper bar 22 can be used to contact the support bar 21. This not only reduces the probability of impact damage, but also allows the accumulated grains on the upper surface of the pressure plate 15 to be scraped off to a greater extent.

[0074] 3. The support bar 21 and the scraper bar 22 can be set to be inclined, so that the grain waste accumulated on the pressing plate 15 can be scraped off better.

[0075] As a preferred solution of the present invention, an adjustment port 35 is opened inside the sliding column 34, a moving port 13 is opened on the side wall at the lower end of the stirring column 12, the inner wall at the upper end of the sliding column 34 is slidably connected to the inner wall of the moving port 13, and the sliding height of the sliding column 34 in the moving port 13 is not less than the height between the scraper 22 and the pressure plate 15.

[0076] More specifically, by setting the adjustment port 35 and the movable port 13, during normal stirring (during the first filtration and the second filtration), the pressure plate 15 will be located below the scraper 22 due to the action of the adjustment port 35 and the movable port 13, and will not directly contact the scraper 22, which can reduce the wear rate to a greater extent.

[0077] When it is necessary to clean the upper surface of the pressing plate 15, the pressing plate 15 will be rotated and ascended under the action of the lifting mechanism, the sliding mouth 16 and the spiral slide rail 17. The lifting mechanism will first pull the pressing plate 15 and the sliding column 34 up a certain distance. At this time, the stirring column 12 will not rise because it is supported by the telescopic component and because the stirring column 12 is not directly connected to the lifting mechanism. When the upper surface of the pressing plate 15 contacts the plurality of scrapers 22, the upper surface of the sliding column 34 also abuts against the upper surface of the movable mouth 13. As the pressing plate 15 rises, the pressing plate 15 will push the stirring column 12 up together, and the telescopic component above the stirring column 12 begins to shrink. Similarly, during the rotation and ascent of the pressing plate 15, the dregs accumulated on its upper surface will be scraped off from the through opening 18 by the scraper 22.

[0078] When the subsequent lifting mechanism pushes the pressure plate 15 down again, the pressure plate 15 will contact the bottom surface of the movable port 13 through the upper surface of the adjustment port 35, thereby pulling the stirring column 12 downward, and during the pulling process, the telescopic assembly extends, so that the stirring column 12 can be moved back to its original position.

[0079] Special mention should be made here:

[0080] 1. Because there is a certain height between the regulating port 35 and the moving port 13, the pressing plate 15 and the scraper 22 will have the same height, so the direct contact between the two during stirring can be reduced, thereby reducing the wear rate.

[0081] 2. The maximum extension length of the telescopic assembly is less than the maximum extension length of the lifting mechanism, and the height difference between them can be the same as "there is a certain height between the adjustment port 35 and the moving port 13". In this way, when the pressure plate 15 drops to the lowest point, the stirring column 12 also drops to the lowest point, increasing stability.

[0082] As a preferred embodiment of the present invention, the lifting mechanism includes a cylinder body 9, a transmission rod 25, a lifting rod 27 and a suction air pipe 28. The outer wall of the cylinder body 9 is fixedly connected to the upper surface of the support plate 7, the piston inside the cylinder body 9 is fixedly connected to the upper end of the transmission rod 25, the lower end of the transmission rod 25 is fixedly connected to the upper end of the lifting rod 27, the lower end of the lifting rod 27 is rotatably connected to the inner wall of the middle part of the pressing plate 15, the transmission rod 25 and the lifting rod 27 both penetrate the driven gear 11, the connecting column 24, the outer cover 23, the inner cover 31 and the stirring column 12, the side wall of the transmission rod 25 is provided with an opening 26, the suction air pipe 28 is located in the opening 26, and the upper end of the suction air pipe 28 is located above the driven gear 11, the side wall of the lifting rod 27 is penetrated with a plurality of suction air ports 29, the inner wall of the middle part of the pressing plate 15 begins to have a plurality of connecting ports 37, and the suction air pipe 28, the suction air port 29, the connecting port 37 and the interior of the suction air cavity 36 are connected.

[0083] More specifically, by setting up a lifting mechanism, the lifting and lowering of the pressing plate 15 can be controlled when the spent grains need to be pressed down; and a channel connected to an external air suction device can be set inside the lifting mechanism, so that air can be sucked into the inside of the pressing plate 15, thereby opening or blocking the opening 18 through the sealing component.

[0084] Specifically, when it is necessary to control the pressing plate 15 to descend, it is only necessary to open the cylinder 9 through the PLC controller. After the cylinder 9 is started, the transmission rod 25 will be pushed outward through the internal piston. In the process of pushing outward, the transmission rod 25 will push the lifting rod 27 outward together, so that the pressing plate 15 connected to the lower end of the lifting rod 27 can be pushed down, so that the pressing plate 15 can be controlled to press the juice on the spent grains below.

[0085] Similarly, when it is necessary to inflate the suction cavity 36 of the pressure plate 15 so that the sealing assembly seals the opening 18, the suction pipe 28 connected to the external suction device will slide in the opening 26 of the transmission rod 25 without colliding with the transmission rod 25. When the external suction device starts to inflate, the gas will enter the suction cavity 36 through the suction pipe 28, the suction port 29 and the connecting port 37, thereby pushing the sealing assembly outward; conversely, when the external suction device draws air, the gas inside the suction cavity 36 will be sucked away, and then due to the air pressure, the sealing assembly will be pushed back into the suction cavity 36 again, thereby opening the opening 18.

[0086] Special mention should be made here:

[0087] The width of the suction port 29 and the connection port 37 is larger than the physical area, so that even if the position of the pressing plate 15 changes due to rotation, it will not be completely blocked.

[0088] As a preferred solution of the present invention, the sealing assembly includes a movable bar 33 and a sealing plate 19, the outer wall of the movable bar 33 is slidably connected to the inner wall of the suction air cavity 36, one side of the movable bar 33 is fixedly connected to one side of the sealing plate 19, and the other end of the sealing plate 19 passes through the side wall of the pressure plate 15 and is slidably connected to the inner wall of the opening 18.

[0089] More specifically, by providing a sealing assembly, the opening 18 can be opened during normal primary filtration and secondary filtration, and when the spent grains need to be compacted with the help of the pressing plate 15, the opening 18 can be sealed to form a whole plate.

[0090] Specifically, when the opening 18 is open, the sealing plate 19 will be retracted into the suction cavity 36 under the action of the moving bar 33; conversely, if the opening 18 needs to be sealed, the sealing plate 19 can be pushed outward under the push of the air pressure inside the suction cavity 36, thereby blocking the opening 18.

[0091] Finally, it should be specially explained that the components directly contacting with the spent grains inside the filter tank body 1, such as the telescopic component, the sealing component, and the pressing plate 15, are all provided with sealing rings at the connection points.

[0092] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A filtering device for beer production, comprising a filtering tank body (1), a juice discharge pipe (4) installed at the lower end of the filtering tank body (1), a sealing cover (5) installed at the upper end of the filtering tank body (1), a filtering plate (38) installed inside the filtering tank body (1), a feed pipe (2) and a slag discharge pipe (3) installed on the side wall of the filtering tank body (1), characterized in that: The upper surface of the sealing cover (5) is connected to a support assembly, the upper surface of the support assembly is connected to a power mechanism and a lifting mechanism, the output end of the power mechanism is connected to a rotating assembly, the upper end of the rotating assembly is sleeved on the outside of the lifting mechanism, the lower end of the rotating assembly passes through the upper surface of the sealing cover (5) and is connected to a telescopic assembly, the other end of the telescopic assembly is connected to a stirring assembly, the lower end of the stirring assembly is connected to a scraping assembly, the output end of the lifting mechanism passes through the rotating assembly, the telescopic assembly and the stirring assembly, and is connected to a sliding column (34), the bottom surface of the sliding column (34) is fixedly connected to a pressing plate (15), and the upper surface of the pressing plate (15) is penetrated by a plurality of through holes ( 18), a suction air cavity (36) is provided on the inner wall of the pressure plate (15), a plurality of sealing components are slidably connected to the inner wall of the suction air cavity (36), the plurality of sealing components are respectively matched with the plurality of through ports (18), the suction air cavity (36) is communicated with the inside of the lifting mechanism, the bottom surface of the pressure plate (15) abuts against the upper surface of the filter plate (38), the upper surface of the pressure plate (15) abuts against the lower end of the scraping component, a plurality of sliding openings (16) are provided on the side wall of the pressure plate (15), a plurality of spiral slide rails (17) are fixedly connected to the inner wall of the filter tank body (1), the inner walls of the plurality of sliding openings (16) are respectively slidably connected to the outer walls of the plurality of spiral slide rails (17).

2. A filtering device for beer production according to claim 1, characterized in that: The support assembly comprises a support plate (7) and a plurality of support rods (6); the bottom surfaces of the plurality of support rods (6) are fixedly connected to the upper surface of the sealing cover (5); the upper surfaces of the plurality of support rods (6) are fixedly connected to the bottom surface of the support plate (7); and the upper surface of the support plate (7) is connected to the power mechanism and the lifting mechanism.

3. A filtering device for beer production according to claim 2, characterized in that: The power mechanism comprises a rotating motor (8) and a driving gear (10); the outer wall of the rotating motor (8) is fixedly connected to the upper surface of the support plate (7); the output shaft of the rotating motor (8) passes through the upper surface of the support plate (7) and is fixedly connected to the inner wall of the driving gear (10); and the driving gear (10) is connected to the rotating assembly.

4. A filtering device for beer production according to claim 3, characterized in that: The rotating assembly comprises a driven gear (11) and a connecting column (24); the bottom surface of the driven gear (11) is fixedly connected to the upper surface of the connecting column (24); the lower end of the connecting column (24) penetrates the upper surface of the sealing cover (5); and the outer wall of the connecting column (24) at one end inside the filter tank body (1) is connected to the telescopic assembly; the driven gear (11) and the connecting column (24) are both sleeved on the outside of the lifting mechanism; and the driving gear (10) is meshed with the driven gear (11).

5. A filtering device for beer production according to claim 4, characterized in that: The telescopic assembly comprises an outer cover (23), an inner cover (31) and a plurality of sliding blocks (30); the inner wall of the upper surface of the outer cover (23) is fixedly connected to the outer wall of the lower end of the connecting column (24); the inner wall of the outer cover (23) is provided with a plurality of sliding grooves (32); the plurality of sliding blocks (30) are fixedly connected to the outer wall of the upper end of the inner cover (31); the outer walls of the plurality of sliding blocks (30) are respectively slidably connected to the inner walls of the plurality of sliding grooves (32); the bottom surface of the inner cover (31) is connected to the stirring assembly; the outer cover (23) and the inner cover (31) are both sleeved on the outside of the lifting mechanism.

6. A filtering device for beer production according to claim 5, characterized in that: The stirring assembly comprises a stirring column (12) and a plurality of groups of stirring rods (14); the upper surface of the stirring column (12) is fixedly connected to the bottom surface of the inner cover (31); the outer wall of the stirring column (12) is fixedly connected to the upper ends of the plurality of groups of stirring rods (14); the lower ends of the stirring rods (14) are connected to the scraping assembly; and the stirring column (12) is sleeved on the outside of the lifting mechanism.

7. A filtering device for beer production according to claim 6, characterized in that: The scraping assembly comprises a connecting ring (20), a plurality of supporting strips (21) and a plurality of scraping strips (22); the side wall of the connecting ring (20) is fixedly connected to one end of the plurality of supporting strips (21); the bottom surfaces of the plurality of supporting strips (21) are respectively fixedly connected to the upper surfaces of the plurality of scraping strips (22); the upper surfaces of the plurality of supporting strips (21) are respectively fixedly connected to the bottom surfaces of a plurality of groups of stirring rods (14); and the bottom surfaces of the plurality of scraping strips (22) are all against the upper surface of the pressing plate (15).

8. A filtering device for beer production according to claim 7, characterized in that: An adjusting port (35) is provided inside the sliding column (34), a moving port (13) is provided on the side wall at the lower end of the stirring column (12), an inner wall at the upper end of the sliding column (34) is slidably connected to the inner wall of the moving port (13), and a slidable height of the sliding column (34) in the moving port (13) is not less than a height between the scraper (22) and the pressing plate (15).

9. A filtering device for beer production according to claim 6, 7 or 8, characterized in that: The lifting mechanism comprises a cylinder body (9), a transmission rod (25), a lifting rod (27) and a suction air pipe (28); the outer wall of the cylinder body (9) is fixedly connected to the upper surface of the support plate (7); the piston inside the cylinder body (9) is fixedly connected to the upper end of the transmission rod (25); the lower end of the transmission rod (25) is fixedly connected to the upper end of the lifting rod (27); the lower end of the lifting rod (27) is rotatably connected to the inner wall of the middle part of the pressing plate (15); the transmission rod (25) and the lifting rod (27) both penetrate the driven gear (11), the connecting column (24), the outer A cover (23), an inner cover (31) and a stirring column (12); an opening (26) is provided on the side wall of the transmission rod (25); a suction air pipe (28) is located in the opening (26), and the upper end of the suction air pipe (28) is located above the driven gear (11); a plurality of suction air ports (29) are provided through the side wall of the lower end of the lifting rod (27); a plurality of connecting ports (37) are provided on the inner wall of the middle part of the pressing plate (15); and the suction air pipe (28), the suction air ports (29), the connecting port (37) and the interior of the suction air cavity (36) are connected.

10. A filtering device for beer production according to claim 1, 2, 3, 4, 5, 6, 7 or 8, characterized in that: The sealing assembly comprises a movable strip (33) and a sealing plate (19), wherein the outer wall of the movable strip (33) is slidably connected to the inner wall of the suction air cavity (36), one side of the movable strip (33) is fixedly connected to one side of the sealing plate (19), and the other end of the sealing plate (19) passes through the side wall of the pressure plate (15) and is slidably connected to the inner wall of the through opening (18).

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