A flat plate type automatic discharging centrifuge for old brown sugar dehydration

Abstract

The application provides a flat plate type automatic discharging centrifuge for old sugar dehydration, which comprises a supporting column, a damping device, a base unit, a rotating drum unit and a material blocking cover unit. The base unit comprises a flat plate base, an outer cylinder, an outer cylinder lower ring body, a lower connecting secondary plate, a bearing seat, a main transmission shaft and a rotary driving mechanism. The rotating drum unit comprises a cylindrical part, a conical part, a rotating drum lower ring body, an upper connecting secondary plate and a rotating drum mounting seat. The material blocking cover unit comprises a conical cover, a long sleeve, a material scattering disc, a rotary joint and a lifting mechanism. The conical part of the rotating drum unit and the conical cover of the material blocking cover unit have reasonable discharging slopes, which can balance the uniformity of the material and the smoothness of the discharging. When discharging, the conical cover is lifted upward to form a larger discharging channel, which has no obstruction to the discharge of large blocky old sugar. The application adopts a straight-through discharging mode, has high discharging efficiency, and the residual moisture on the back of the rotating drum will not mix with the old sugar product after dehydration, thereby ensuring the dehydration effect.

Description

Technical Field

[0001] This invention relates to the field of centrifuge technology, specifically a flat-plate automatic feeding centrifuge for dehydrating rock sugar. Background Technology

[0002] Dehydration is a crucial step in the production of rock sugar, aiming to remove excess moisture from the crystal surface and make the sugar drier and purer. Centrifugal dehydration involves pouring the syrup containing crystals into a centrifuge, where high-speed rotation removes the water. This method is highly efficient and can quickly remove large amounts of water.

[0003] However, ordinary centrifuges cannot effectively handle the centrifugal dehydration of rock sugar, mainly due to two shortcomings: First, because the syrup contains a large number of crystals, ordinary centrifuges are prone to uneven distribution of the material; second, when the existing tumbling discharge centrifuges process rock sugar, the precipitated liquid is easily carried out with the rock sugar during discharge, affecting the dehydration effect, and the discharge process occupies a large space and has low discharge efficiency. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art, the purpose of this invention is to provide a flat-plate automatic feeding centrifuge for dehydrating old rock sugar.

[0005] To achieve the above objectives, the technical solution adopted by the present invention to solve its technical problem is: a flat-plate automatic feeding centrifuge for dehydrating old rock sugar, comprising a support column, a vibration damping device, a base unit, a rotating drum unit, and a baffle cover unit;

[0006] The vibration damping device is installed at the top of the support column;

[0007] The base unit includes a flat base, an outer cylinder, a lower outer cylinder ring, a lower connecting plate, a bearing seat, a main drive shaft, and a rotary drive mechanism. The flat base is mounted on the vibration damping device. The outer wall of the outer cylinder is fixedly connected to the flat base. A top plate is installed at the upper end of the outer cylinder. The top plate has a central hole and a feeding port. The lower outer cylinder ring is fixedly installed on the inner ring of the bottom plate of the outer cylinder. The bearing seat is located inside the lower outer cylinder ring. The lower outer cylinder ring and the bearing seat are connected by multiple lower connecting plates that are circumferentially spaced. A material discharge channel is formed between adjacent lower connecting plates. The lower part of the main drive shaft is mounted in the bearing seat via a bearing. The rotary drive mechanism drives the main drive shaft to rotate.

[0008] The rotary drum unit includes a cylindrical section, a conical section, a lower ring body, an upper connecting plate, and a rotary drum mounting base. The cylindrical section is located at the upper part of the rotary drum unit. The conical section extends obliquely downward and inward from the lower edge of the cylindrical section. The lower ring body is installed at the lower opening of the conical section. The rotary drum mounting base is located inside the lower ring body. The lower ring body and the rotary drum mounting base are connected by multiple upper connecting plates that are circumferentially spaced. A material discharge channel is formed between adjacent upper connecting plates. The rotary drum mounting base is fixedly connected to the middle part of the main drive shaft. The cylindrical section and the conical section are provided with multiple spaced drainage holes. The angle between the inner conical surface of the conical section and the vertical axis is 30-40°.

[0009] The baffle unit includes a conical cover, a long sleeve, a material distribution plate, a rotating joint, and a lifting mechanism. The long sleeve is sleeved on the upper part of the main drive shaft and has a degree of freedom of axial movement relative to the main drive shaft. A limiting mechanism is also provided between the long sleeve and the main drive shaft to restrict the axial rotational degree of freedom, so that the long sleeve rotates with the main drive shaft. The conical cover is fixedly installed at the lower end of the long sleeve. The outer diameter of the upper end of the conical cover is smaller than the outer diameter of the lower end, and the outer conical surface of the conical cover is perpendicular to the vertical axis. The included angle is 35-45°; the material tray is fixedly installed at the lower end of the long sleeve, the material tray is located above the conical cover, and the feeding port faces downwards and is directly opposite the material tray; the rotating joint is connected to the top end of the long sleeve, the lifting mechanism is connected to the top end of the rotating joint, and the lifting mechanism is used to drive the long sleeve, the material tray and the conical cover to move up and down synchronously along the main drive shaft; when the conical cover is at the lowest limit position, the lower edge of the conical cover is in contact with the inner wall of the lower end of the conical part.

[0010] The technical solution of this invention features a conical section of the rotary drum unit and a conical cover of the baffle unit, both with reasonable unloading slopes, ensuring both uniform material distribution and smooth unloading. The lifting mechanism raises the conical cover during unloading to create a larger unloading channel, facilitating the discharge of large blocks of rock candy. The distribution tray, acting as a material distribution relay platform, evenly distributes material to the rotary drum unit, suitable for low-speed or zero-speed feeding. This centrifuge employs a direct-flow unloading method, resulting in high unloading efficiency. During unloading, residual moisture on the back of the cylindrical and conical sections with drainage holes will not mix with the dehydrated rock candy, ensuring effective dehydration.

[0011] Furthermore, the outer cylinder has a liquid outlet on its wall, and a water collection trough is provided between the outer cylinder and the lower ring of the outer cylinder. An inclined annular flow plate is provided in the water collection trough, and the lower end of the annular flow plate is close to the liquid outlet.

[0012] Furthermore, it also includes an annular air blowing pipe located at the water collection tank position, the annular air blowing pipe having air blowing holes, the air blowing from the inner diameter side of the annular flow plate to the outer diameter side.

[0013] By adopting the above-mentioned preferred scheme, the inclined liquid outlet combined with gas blowing ensures that viscous liquid is discharged from the outlet in a timely manner.

[0014] Furthermore, the diameter D of a single drain hole is 8-12 mm, and the opening area of ​​the drain holes on the cylindrical and conical sections is 0.5%-1%.

[0015] The above-mentioned preferred scheme balances the improvement of dehydration efficiency and the yield of rock sugar crystals.

[0016] Furthermore, it also includes an atomizing cleaning device for spraying a cleaning sugar-saturated solution into the rotating drum unit. The atomizing cleaning device includes a spray pipe extending downward from the top plate into the interior of the rotating drum. The spray pipe is equipped with multiple nozzles facing the inner wall of the cylindrical portion of the rotating drum unit.

[0017] The above-mentioned preferred solution facilitates the cleaning of the old rock sugar in the cylindrical and conical parts of the fabric.

[0018] Furthermore, it also includes a lifting drive mechanism for controlling the lifting and lowering movement of the spray pipe. The spray pipe is mounted on a lifting mounting plate of the lifting drive mechanism. A pressure sensor is connected between the spray pipe and the lifting mounting plate. The pressure sensor is used to detect whether the spray pipe is in contact with the conical cover.

[0019] By adopting the above-mentioned preferred solution, the spray pipe is given a scraping function. When the conical cover is raised and rotated, the spray pipe can scrape off a small amount of old rock sugar crystals that have not fallen freely when it comes into contact with the surface of the conical cover.

[0020] Furthermore, the rotary drive mechanism includes a transmission wheel, a transmission belt, and a drive motor mounted on the lower end of the main drive shaft. The drive motor is mounted on the outside of the outer cylinder, and a drive wheel is mounted on the output shaft of the drive motor. The transmission belt is wound between the drive wheel and the transmission wheel.

[0021] The preferred design described above utilizes a drive motor and a transmission belt to provide reliable rotational drive force to the main drive shaft. The drive motor is positioned on the outer side of the outer cylinder to minimize obstruction of the material feeding channel and ensure stable feeding of large pieces of material.

[0022] Furthermore, the lifting mechanism includes a first connecting seat, a second connecting seat, a first connecting rod, a second connecting rod, and an electric cylinder. The first connecting seat and the second connecting seat are fixed to the top plate. The bottom end of the first connecting rod is hinged to the first connecting seat, and the upper end of the first connecting rod is hinged to the middle of the second connecting rod. The bottom of the cylinder body of the electric cylinder is hinged to the second connecting seat. The top end of the push rod of the electric cylinder is hinged to one end of the second connecting rod, and the other end of the second connecting rod is hinged to the top end of the rotating joint.

[0023] Using the above-mentioned preferred scheme, the material baffle unit is stably raised and lowered by an electric cylinder, thereby opening and closing the material unloading channel.

[0024] Furthermore, the limiting mechanism for restricting the axial rotational freedom between the long sleeve and the main drive shaft consists of a vertically arranged elongated guide groove on the long sleeve and a positioning pin block fixed on the main drive shaft. The positioning pin block is located within the elongated guide groove and matches the width of the elongated guide groove.

[0025] Furthermore, a sealing ring is provided at the lower edge of the conical cover where it abuts the conical part, and a concave annular groove is provided at the lower edge of the conical cover. The cross-section of the annular groove is a trapezoid with an opening width smaller than the bottom width. A convex triangular protrusion is provided at the bottom of the annular groove, and a V-shaped groove matching the triangular protrusion is provided at the bottom of the sealing ring. A hollow air-filling cavity is also provided in the base of the sealing ring.

[0026] By adopting the above-mentioned preferred solution, the sealing efficiency at the joint between the conical cover and the conical section is improved, preventing moisture from falling into the material discharge channel.

[0027] Furthermore, the lower surface of the conical cover is also provided with multiple sets of scraping mechanisms distributed along the circumference. The scraping mechanism includes a first guide seat, a second guide seat, a push rod, a rear support plate, an elastic device, an arc frame, and scraper claws. The first guide seat, the second guide seat, and the rear support plate are fixedly installed on the lower surface of the conical cover. The push rod is movably installed between the first guide seat and the second guide seat. The two ends of the elastic device abut against the tail end of the push rod and the rear support plate, respectively. The arc frame is installed on the front end of the push rod, and multiple scraper claws are spaced apart on the arc frame.

[0028] Furthermore, the scraper claw is oscillatingly mounted on the arc-shaped frame, and the arc-shaped frame is also provided with a limiting block for limiting the oscillation amplitude of the scraper claw. The scraper claw oscillates within an angle range of ±10° with respect to the vertical direction. The arc-shaped frame is also equipped with a torsion spring, which is used to generate a driving force to cause the scraper claw to oscillate towards the conical part.

[0029] Using the preferred scheme described above, after the conical hood is raised, a large material discharge channel is formed between the conical hood and the conical section. Most of the dehydrated rock sugar material falls down the slope. Simultaneously, under the elastic force of the elastic device, the push rod moves towards the conical section, causing the scraper to agitate the small amount of material still attached to the conical section. When air enters the material from the inner surface of the conical section, the adhesion between the material and the conical section decreases, and the remaining material falls smoothly after being agitated, further improving the material discharge efficiency. When the conical hood resets downward to close the material discharge channel, as the scraping mechanism moves downward with the conical hood, the conical hood exerts a squeezing force on the scraper, causing the push rod to retract against the elastic force of the elastic device. Finally, the scraper rests against the lower ring of the rotating cylinder at the lower opening of the conical section. By repeatedly raising and lowering the conical hood, the material discharge efficiency can be further improved. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the structure of the present invention.

[0032] Figure 2 This is a schematic diagram of the material baffle unit of the present invention in the upward lifting and unloading state.

[0033] Figure 3 yes Figure 1 Enlarged view of a portion of point A in the middle.

[0034] Figure 4 This is a schematic diagram of the scraping mechanism in another embodiment of the present invention.

[0035] Figure 5 This is a schematic diagram showing the downward movement of the scraper during material feeding.

[0036] Figure 6 This is a partial schematic diagram of the scraper.

[0037] The numbers and letters in the diagram represent the names of the corresponding components:

[0038] 10-Support column; 20-Vibration damping device; 30-Base unit; 31-Flat plate base; 32-Outer cylinder; 33-Lower outer cylinder ring; 34-Lower connecting plate; 35-Bearing seat; 36-Main drive shaft; 37-Rotary drive mechanism; 371-Drive wheel; 372-Drive belt; 373-Drive motor; 374-Drive wheel; 38-Top plate; 39-Feeding port; 41-Liquid outlet; 42-Water collection tank; 43-Annular flow plate; 50-Rotating drum unit; 51-Cylindrical section; 52-Conical section; 53-Lower ring of rotating drum; 54-Upper connecting plate; 55-Rotating drum mounting seat; 56-Drain hole; 70-Baffle cover unit; 71-Conical 711-Shaped cover; 712-Annular groove; 713-Triangular protrusion; 72-Long sleeve; 73-Distribution tray; 74-Rotating joint; 75-Lifting mechanism; 751-First connecting seat; 752-Second connecting seat; 753-First connecting rod; 754-Second connecting rod; 755-Electric cylinder; 76-Sealing ring; 761-V-shaped groove; 762-Inflation chamber; 80-Atomizing cleaning device; 81-Spray pipe; 82-Spray head; 90-Scraping mechanism; 91-First guide seat; 92-First guide seat; 93-Push rod; 94-Rear support plate; 95-Elastic device; 96-Arc-shaped frame; 97-Scraper claw; 98-Limit stop; 99-Torsion spring. Detailed Implementation

[0039] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] like Figure 1-3 As shown, one embodiment of the present invention is: a flat-plate automatic feeding centrifuge for dehydrating old rock sugar, including a support column 10, a vibration damping device 20, a base unit 30, a rotating drum unit 50 and a baffle unit 70.

[0041] Vibration damping device 20 is installed at the top of support column 10;

[0042] The base unit 30 includes a flat base 31, an outer cylinder 32, an outer cylinder lower ring 33, a lower connecting plate 34, a bearing seat 35, a main drive shaft 36, and a rotary drive mechanism 37. The flat base 31 is mounted on the vibration damping device 20. The outer wall of the outer cylinder 32 is fixedly connected to the flat base 31. A top plate 38 is installed at the upper end of the outer cylinder 32. The top plate 38 has a central hole and a feeding port 39. The outer cylinder lower ring 33 is fixedly installed on the inner ring of the bottom plate of the outer cylinder 32. The bearing seat 35 is located inside the outer cylinder lower ring 33. The outer cylinder lower ring 33 and the bearing seat 35 are connected by multiple lower connecting plates 34 that are circumferentially spaced. A material dropping channel is formed between adjacent lower connecting plates 34. The lower part of the main drive shaft 36 is mounted in the bearing seat 35 via a bearing. The rotary drive mechanism 37 drives the main drive shaft 36 to rotate.

[0043] The rotary drum unit 50 includes a cylindrical part 51, a conical part 52, a lower ring body 53, an upper connecting plate 54, and a rotary drum mounting seat 55. The cylindrical part 51 is located at the upper part of the rotary drum unit 50. The conical part 52 extends obliquely downward from the lower edge of the cylindrical part 51. The lower ring body 53 is installed at the lower opening of the conical part 52. The rotary drum mounting seat 55 is located inside the lower ring body 53. The lower ring body 53 and the rotary drum mounting seat 55 are connected by a plurality of upper connecting plates 54 arranged in a circumferential interval. A material discharge channel is formed between adjacent upper connecting plates 54. The rotary drum mounting seat 55 is fixedly connected to the middle part of the main drive shaft 36. The cylindrical part 51 and the conical part 52 are provided with a plurality of spaced drainage holes 56. The angle between the inner conical surface of the conical part 52 and the vertical axis is 30-40°.

[0044] The baffle unit 70 includes a conical cover 71, a long sleeve 72, a material distribution plate 73, a rotating joint 74, and a lifting mechanism 75. The long sleeve 72 is sleeved on the upper part of the main drive shaft 36 and has the freedom to move axially relative to the main drive shaft 36. A limiting mechanism is also provided between the long sleeve 72 and the main drive shaft 36 to restrict the axial rotational freedom, so that the long sleeve 72 rotates with the main drive shaft 36. The conical cover 71 is fixedly installed on the lower end of the long sleeve 72. The outer diameter of the upper end of the conical cover 71 is smaller than the outer diameter of the lower end. The outer conical surface of the conical cover 71 is perpendicular to the vertical... The included angle of the straight axis is 35-45°; the loose material tray 73 is fixedly installed at the lower end of the long sleeve 72, the loose material tray 73 is located above the conical cover 71, and the feeding port 39 faces downward directly towards the loose material tray 73; the rotating joint 74 is connected to the top of the long sleeve 72, and the lifting mechanism 75 is connected to the top of the rotating joint 74. The lifting mechanism 75 is used to drive the long sleeve 72, the loose material tray 73 and the conical cover 71 to move up and down synchronously along the main drive shaft 36; when the conical cover 71 is at the lowest limit position, the lower edge of the conical cover 71 is in contact with the inner wall of the lower end of the conical part 52.

[0045] In use, the rotary drive mechanism 37 drives the rotating drum unit 50 and the baffle unit 70 to rotate synchronously via the main drive shaft 36. The old rock sugar crystal solution to be dehydrated is added through the feeding port 39. After the solution falls onto the distribution plate 73, it is evenly distributed into the rotating drum unit 50. Under the action of centrifugal force, water is separated from the old rock sugar crystal solution and flows out through the drainage holes 56 of the cylindrical part 51 and the conical part 52. After the old rock sugar is dehydrated, the lifting mechanism 75 lifts the baffle unit 70 upward and opens the conical cover 71. Under the action of gravity, the dehydrated old rock sugar blocks fall and are collected from the discharge channel between the conical cover and the conical part.

[0046] The beneficial effects of adopting the above technical solution are as follows: both the conical section of the rotary drum unit and the conical cover of the baffle unit have reasonable discharge slopes, which can balance the uniformity of material distribution and the smoothness of discharge. The lifting mechanism can lift the conical cover upwards during discharge to form a larger discharge channel, which can unobstruct the discharge of large blocky rock candy. The distribution tray, as a material distribution relay platform, can evenly distribute the material to the rotary drum unit and is suitable for low-speed or zero-speed feeding. This centrifuge adopts a straight-through discharge method, which has high discharge efficiency. During discharge, the water remaining on the back of the cylindrical section and the conical section with drainage holes will not mix with the dehydrated rock candy product, ensuring the dehydration effect.

[0047] like Figure 1 As shown, in some embodiments of the present invention, the outer cylinder 32 has a liquid outlet 41 on its wall, and a water collection trough 42 is formed between the bottom of the outer cylinder 32 and the lower ring 33 of the outer cylinder. An inclined annular flow plate 43 is provided inside the water collection trough 42, with its lower end close to the liquid outlet 41. An annular air blowing pipe is also included, located at the position of the water collection trough 42. The annular air blowing pipe has air blowing holes, and the air blowing direction in the air blowing holes is from the inner diameter side to the outer diameter side of the annular flow plate 42. The beneficial effect of adopting the above technical solution is that the inclined liquid outlet combined with gas blowing ensures that viscous liquid is discharged from the liquid outlet in a timely manner.

[0048] In other embodiments of the present invention, the diameter D of a single drain hole 56 is 8-12 mm, and the opening area of ​​the drain holes 56 on the cylindrical portion 51 and the conical portion 52 is 0.5%-1%. The beneficial effect of adopting the above technical solution is that it simultaneously improves the dehydration efficiency and the yield of rock sugar crystals.

[0049] like Figure 2 As shown, in some other embodiments of the present invention, an atomizing cleaning device 80 is also included for spraying a saturated sugar solution into the rotating drum unit. The atomizing cleaning device 80 includes a spray pipe 81 extending downward from the top plate into the interior of the rotating drum. The spray pipe 81 is equipped with a plurality of nozzles 82, which face the inner wall of the cylindrical portion 51 of the rotating drum unit. The beneficial effect of adopting the above technical solution is that it facilitates the cleaning of the fabric containing rock sugar in the cylindrical and conical portions.

[0050] In other embodiments of the present invention, a lifting drive mechanism is also included to control the lifting and lowering movement of the spray pipe 81. The spray pipe 81 is mounted on a lifting mounting plate of the lifting drive mechanism, and a pressure sensor is connected between the spray pipe 81 and the lifting mounting plate. The pressure sensor is used to detect whether the spray pipe 81 is in contact with the conical cover 71. The beneficial effect of adopting the above technical solution is that the spray pipe is given a scraping function. When the conical cover is lifted and rotated upward, the spray pipe can scrape off a small amount of old rock sugar crystals that have not fallen freely when it contacts the surface of the conical cover.

[0051] like Figure 2 As shown, in some embodiments of the present invention, the rotary drive mechanism 37 includes a transmission wheel 371, a transmission belt 372, and a drive motor 373. The transmission wheel 371 is mounted on the lower end of the main drive shaft 36, and the drive motor 373 is mounted on the outside of the outer cylinder 32. A drive wheel 374 is mounted on the output shaft of the drive motor 373, and the transmission belt 372 is wound between the drive wheel 374 and the transmission wheel 371. The beneficial effects of adopting the above technical solution are: the drive motor and the transmission belt provide a reliable rotary drive force to the main drive shaft. The drive motor is located on the outside of the outer cylinder, reducing obstruction to the material discharge channel and ensuring stable discharge of large pieces of material.

[0052] like Figure 2 As shown, in some embodiments of the present invention, the lifting mechanism 75 includes a first connecting seat 751, a second connecting seat 752, a first connecting rod 753, a second connecting rod 754, and an electric cylinder 755. The first connecting seat 751 and the second connecting seat 752 are fixed to the top plate 38. The bottom end of the first connecting rod 753 is hinged to the first connecting seat 751, and the upper end of the first connecting rod 753 is hinged to the middle of the second connecting rod 754. The bottom of the cylinder body of the electric cylinder 755 is hinged to the second connecting seat 752, and the top end of the push rod of the electric cylinder 755 is hinged to one end of the second connecting rod 754. The other end of the second connecting rod 754 is hinged to the top end of the rotating joint 74. The beneficial effect of adopting the above technical solution is that the electric cylinder realizes the stable lifting and lowering of the baffle unit, and realizes the opening and closing of the material discharge channel.

[0053] In some other embodiments of the present invention, the limiting mechanism for restricting the axial rotational freedom between the long sleeve 72 and the main drive shaft 36 is a vertically arranged elongated guide groove provided on the long sleeve 72 and a positioning pin block fixed on the main drive shaft 36, wherein the positioning pin block is located in the elongated guide groove and matches the width of the elongated guide groove.

[0054] like Figure 1 , 3As shown, in some other embodiments of the present invention, a sealing ring 76 is provided at the lower edge of the conical cover 71 where it abuts against the conical cylinder portion 52. A concave annular groove 711 is provided at the lower edge of the conical cover 71. The cross-section of the annular groove 711 is a trapezoid with an opening width smaller than the bottom width. A convex triangular protrusion 712 is provided at the bottom of the annular groove 711. A V-shaped groove 761 matching the triangular protrusion 712 is provided at the bottom of the sealing ring 76. A hollow air-filling cavity 762 is also provided within the base of the sealing ring 76. The beneficial effect of adopting the above technical solution is to improve the sealing efficiency at the junction of the conical cover and the conical cylinder portion, preventing moisture from falling into the material discharge channel.

[0055] like Figure 4-6 As shown, in some other embodiments of the present invention, the lower surface of the conical cover 71 is further provided with multiple sets of scraping mechanisms 90 distributed along the circumference. The scraping mechanism 90 includes a first guide seat 91, a second guide seat 92, a push rod 93, a rear support plate 94, an elastic device 95, an arc frame 96, and scraper claws 97. The first guide seat 91, the second guide seat 92, and the rear support plate 94 are fixedly installed on the lower surface of the conical cover 71. The push rod 93 is movably installed between the first guide seat 91 and the second guide seat 92. The two ends of the elastic device 95 abut against the tail end of the push rod 93 and the rear support plate 94, respectively. The arc frame 96 is installed on the front end of the push rod 93, and multiple scraper claws 97 are spaced apart on the arc frame 96. The scraper 97 is oscillatingly mounted on the arc-shaped frame 96. The arc-shaped frame 96 is also equipped with a limiting block 98 to limit the oscillation amplitude of the scraper 97. The scraper 97 oscillates within an angle range of ±10° with respect to the vertical direction. A torsion spring 99 is also installed on the arc-shaped frame 96, which generates a driving force to cause the scraper 97 to oscillate towards the conical section 52. The beneficial effects of the above technical solution are: after the conical cover is raised, a large material discharge channel is formed between the conical cover and the conical section, and most of the dehydrated rock sugar material falls down the slope; at the same time, under the elastic force of the elastic device, the push rod moves towards the conical section, causing the scraper to pry open the small amount of material still attached to the conical section. When the material shifts between itself and the inner surface of the conical section and air enters, the adsorption force between the material and the conical section decreases, and the remaining material falls smoothly after being pried open, further improving the material discharge efficiency. When the conical shroud resets downwards to close the material feeding channel, as the scraping mechanism moves downwards with the conical shroud, the conical shroud exerts a squeezing force on the scraper claws, causing the push rod to overcome the elastic force of the spring device and retract. Finally, the scraper claws abut against the lower ring of the rotating cylinder at the lower opening of the conical section. By repeatedly raising and lowering the conical shroud, the material feeding efficiency can be further improved.

[0056] The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement it. They should not be used to limit the scope of protection of the present invention. All equivalent changes or modifications made in accordance with the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A flat-plate automatic feeding centrifuge for dehydrating rock sugar, characterized in that, Includes support columns, vibration damping devices, base units, rotary drum units, and baffle units; The vibration damping device is installed at the top of the support column; The base unit includes a flat base, an outer cylinder, a lower outer cylinder ring, a lower connecting plate, a bearing seat, a main drive shaft, and a rotary drive mechanism. The flat base is mounted on the vibration damping device. The outer wall of the outer cylinder is fixedly connected to the flat base. A top plate is installed at the upper end of the outer cylinder. The top plate has a central hole and a feeding port. The lower outer cylinder ring is fixedly installed on the inner ring of the bottom plate of the outer cylinder. The bearing seat is located inside the lower outer cylinder ring. The lower outer cylinder ring and the bearing seat are connected by multiple lower connecting plates that are circumferentially spaced. A material discharge channel is formed between adjacent lower connecting plates. The lower part of the main drive shaft is mounted in the bearing seat via a bearing. The rotary drive mechanism drives the main drive shaft to rotate. The rotary drum unit includes a cylindrical section, a conical section, a lower ring body, an upper connecting plate, and a rotary drum mounting base. The cylindrical section is located at the upper part of the rotary drum unit. The conical section extends obliquely downward and inward from the lower edge of the cylindrical section. The lower ring body is installed at the lower opening of the conical section. The rotary drum mounting base is located inside the lower ring body. The lower ring body and the rotary drum mounting base are connected by multiple upper connecting plates that are circumferentially spaced. A material discharge channel is formed between adjacent upper connecting plates. The rotary drum mounting base is fixedly connected to the middle part of the main drive shaft. The cylindrical section and the conical section are provided with multiple spaced drainage holes. The angle between the inner conical surface of the conical section and the vertical axis is 30-40°. The baffle unit includes a conical cover, a long sleeve, a material distribution plate, a rotating joint, and a lifting mechanism. The long sleeve is sleeved on the upper part of the main drive shaft and has a degree of freedom of axial movement relative to the main drive shaft. A limiting mechanism is also provided between the long sleeve and the main drive shaft to restrict the axial rotational degree of freedom, so that the long sleeve rotates with the main drive shaft. The conical cover is fixedly installed at the lower end of the long sleeve. The outer diameter of the upper end of the conical cover is smaller than the outer diameter of the lower end, and the outer conical surface of the conical cover is perpendicular to the vertical axis. The included angle is 35-45°; the material tray is fixedly installed at the lower end of the long sleeve, the material tray is located above the conical cover, and the feeding port faces downwards directly towards the material tray; the rotating joint is connected to the top end of the long sleeve, and the lifting mechanism is connected to the top end of the rotating joint. The lifting mechanism is used to drive the long sleeve, the material tray, and the conical cover to move up and down synchronously along the main drive shaft; when the conical cover is at its lowest position, the lower edge of the conical cover is in contact with the inner wall of the lower end of the conical section; The lower surface of the conical cover is also provided with multiple sets of scraping mechanisms distributed along the circumference. The scraping mechanism includes a first guide seat, a second guide seat, a push rod, a rear support plate, an elastic device, an arc frame, and scraper claws. The first guide seat, the second guide seat, and the rear support plate are fixedly installed on the lower surface of the conical cover. The push rod is movably installed between the first guide seat and the second guide seat. The two ends of the elastic device abut against the tail end of the push rod and the rear support plate, respectively. The arc frame is installed on the front end of the push rod, and multiple scraper claws are spaced apart on the arc frame.

2. The flat-plate automatic feeding centrifuge for dehydrating rock sugar according to claim 1, characterized in that, The outer cylinder has a liquid outlet on its wall, and a water collection trough is provided between the outer cylinder and the lower ring of the outer cylinder. An inclined annular flow plate is provided in the water collection trough, and the lower end of the annular flow plate is close to the liquid outlet.

3. The flat-plate automatic feeding centrifuge for dehydrating rock sugar according to claim 2, characterized in that, It also includes an annular air blowing pipe located at the water collection tank, the annular air blowing pipe having air blowing holes, the air blowing from the inner diameter side of the annular flow plate to the outer diameter side.

4. The flat-plate automatic feeding centrifuge for dehydrating rock sugar according to claim 1, characterized in that, It also includes an atomizing cleaning device for spraying a cleaning sugar-saturated solution into the rotating drum unit. The atomizing cleaning device includes a spray pipe extending downward from the top plate into the interior of the rotating drum. The spray pipe is equipped with multiple nozzles facing the inner wall of the cylindrical portion of the rotating drum unit.

5. The flat-plate automatic feeding centrifuge for dehydrating rock sugar according to claim 4, characterized in that, It also includes a lifting drive mechanism for controlling the lifting and lowering movement of the spray pipe. The spray pipe is mounted on a lifting mounting plate of the lifting drive mechanism. A pressure sensor is connected between the spray pipe and the lifting mounting plate. The pressure sensor is used to detect whether the spray pipe is in contact with the conical cover.

6. The flat-plate automatic feeding centrifuge for dehydrating rock sugar according to claim 1, characterized in that, The rotary drive mechanism includes a transmission wheel, a transmission belt, and a drive motor. The transmission wheel is mounted on the lower end of the main drive shaft, the drive motor is mounted on the outside of the outer cylinder, a drive wheel is mounted on the output shaft of the drive motor, and the transmission belt is wound between the drive wheel and the transmission wheel.

7. The flat-plate automatic feeding centrifuge for dehydrating rock sugar according to claim 1, characterized in that, The lifting mechanism includes a first connecting seat, a second connecting seat, a first connecting rod, a second connecting rod, and an electric cylinder. The first and second connecting seats are fixed to the top plate. The bottom end of the first connecting rod is hinged to the first connecting seat, and the upper end of the first connecting rod is hinged to the middle of the second connecting rod. The bottom of the cylinder body of the electric cylinder is hinged to the second connecting seat. The top end of the push rod of the electric cylinder is hinged to one end of the second connecting rod, and the other end of the second connecting rod is hinged to the top end of the rotating joint.

8. The flat-plate automatic feeding centrifuge for dehydrating rock sugar according to claim 1, characterized in that, A sealing ring is provided at the lower edge of the conical cover where it abuts the conical part. A concave annular groove is provided at the lower edge of the conical cover. The cross-section of the annular groove is a trapezoid with an opening width smaller than the bottom width. A convex triangular protrusion is provided at the bottom of the annular groove. A V-shaped groove matching the triangular protrusion is provided at the bottom of the sealing ring. A hollow air-filling cavity is also provided in the base of the sealing ring.

9. The flat-plate automatic feeding centrifuge for dehydrating rock sugar according to claim 1, characterized in that, The scraper claw is oscillatingly mounted on the arc-shaped frame, which is also provided with a limiting block for limiting the swing amplitude of the scraper claw. The scraper claw swings within an angle range of ±10° with respect to the vertical direction. A torsion spring is also installed on the arc-shaped frame, which is used to generate a driving force to cause the scraper claw to swing toward the conical part.

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