Scraper evaporator with uniform heating function

Abstract

The invention discloses a uniform heating scraper evaporator, and relates to the technical field of evaporators, the uniform heating scraper evaporator comprises a collection cylinder, a separation cylinder and a heating cylinder which are communicated in sequence, the separation cylinder is internally provided with a distributor, the uniform heating scraper evaporator also comprises a fixed disc, the fixed disc is fixedly connected in the separation cylinder, and the bottom of the fixed disc is fixedly connected with a baffle cylinder; the bottom of the fixed disc is rotationally connected with a rotating disc, the outer side of the blocking cylinder is movably sleeved with the rotating disc, and a plurality of retractable blocking assemblies are arranged between the rotating disc and the rotating disc and annularly arranged around the circle center of the fixed disc; when the rotating disc is lower than the bottom of the blocking cylinder, a large amount of materials are rapidly discharged through the gap and fall on the top of the distributor in a ring form, so that when the distributor rotates, the materials are sprayed more uniformly, and the distribution efficiency is improved. And the liquid film thickness difference caused by single-side impact is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of evaporators, in particular to a scraper evaporator with uniform heating. Background Art

[0002] Scraper-type evaporators are widely used for solvent recovery of terephthalic acid (PTA) and for evaporation and concentration of other liquids. Liquid enters the cylindrical chamber through a feed port located at the top of the scraper evaporator. A liquid distributor mounted on the scraper shaft distributes the liquid continuously along the inner wall of the chamber, where it forms a thin film under the action of the scrapers. The outer wall of the chamber is heated by a jacket or other means. As the film descends, it is continuously evaporated and concentrated. After evaporation, the solvent within the film rises along the chamber, passing through a gas-liquid separator (demister) to remove entrained liquid droplets before being recycled. The heated and concentrated material is discharged from the bottom of the equipment and sent to subsequent processing stages.

[0003] The patent application with reference publication number CN118084116A discloses a scraper-type thin-film evaporator for treating waste stripping liquid, which relates to the technical field of evaporators and includes a housing, a main shaft, a scraper assembly, and a drive motor. The drive motor is arranged outside the housing and drives the main shaft to rotate within the housing. The scraper assembly is fixed to the main shaft. The scraper assembly includes scrapers uniformly distributed along the circumferential direction on the outside of the main shaft, and a connecting rod arranged between the scraper bars and the main shaft, and the scraper bars are arranged along the axial direction of the main shaft. The present invention can adjust the rotation direction of the main shaft according to the viscosity of the waste stripping liquid and increase the downward movement speed of the waste stripping liquid on the heating surface through the scraper assembly, thereby increasing the film formation speed of the waste stripping liquid on the heating surface, thereby improving the evaporation efficiency of the waste stripping liquid; or slow down the downward movement speed of the waste stripping liquid on the heating surface, thereby extending the contact time between the waste stripping liquid and the heating surface, thereby ensuring that the waste stripping liquid reaches the evaporation concentration requirements after passing through the heating surface.

[0004] The material is evaporated through the feed pipe. The existing method often discharges the material directly to the top of the distributor. However, in actual operation, it is found that since the rotating rod needs to be set at the center, the material input position can only be on one side of the top of the distributor. Therefore, when the material falls into the top of the distributor, the material will be concentrated on one side of the feed pipe, resulting in uneven formation of the thin wall, thereby avoiding the serious imbalance of liquid film distribution when feeding the material on one side. The material concentrates on one side of the distributor and cannot be evenly spread by centrifugal force or the diversion structure, and the material cannot be evenly heated.

[0005] Therefore, it is necessary to provide a scraper evaporator with uniform heating to solve the above technical problems. Summary of the Invention

[0006] The object of the present invention is to provide a scraper evaporator with uniform heating to solve the problems of the defects of the prior art mentioned in the above background technology.

[0007] Based on the above ideas, the present invention provides the following technical solution: a scraper evaporator with uniform heating, comprising a collecting cylinder, a separating cylinder and a heating cylinder, which are connected in sequence, a distributor is provided inside the separating cylinder, and further comprising: The fixed disk assembly is arranged inside the separation drum and includes a fixed disk, a retaining cylinder, a rotating disk, and a rotary disk; wherein the retaining cylinder is fixed to the bottom of the fixed disk, the rotary disk is rotatably connected to the bottom of the fixed disk, and the rotary disk is movably sleeved on the outside of the retaining cylinder; The retractable baffle mechanism is composed of a plurality of baffle assemblies arranged in an annular manner around the center of the fixed disk, and the baffle assemblies are connected between the rotating disk and the rotary disk; A feed pipe is connected to the separation cylinder and has an opening located between the rotating disk and the rotary disk, and is configured to push the baffle assembly to drive the rotary disk to rotate and descend during feeding; The support and positioning mechanism comprises a support plate, a rotating support plate, an elastic member, and a positioning member; the support plate is fixed in the separation barrel, the rotating support plate is rotatably connected to the support plate and reset by the elastic member; the positioning member is provided between the rotating support plate and the baffle assembly for positioning the rotating plate; When the rotating disk descends to the bottom of the retaining cylinder, the material is evenly distributed through the distributor.

[0008] As a further solution of the present invention: the positioning member includes: A plurality of connecting plates, each of which is disposed at the first opening at the bottom of the first fixing frame, and a second spring is fixedly connected between two sides of the connecting plates and two sides of the inner wall of the first fixing frame; A plurality of connecting spring plates, wherein the plurality of connecting spring plates are fixedly connected to the bottom of the connecting plate, and a metal ball is fixedly connected to the bottom of the connecting spring plate; The electromagnet is fixedly connected to the top of the rotating support plate, and is fixed to the metal ball by magnetic attraction after being energized.

[0009] As a further solution of the present invention: a plurality of connecting plates are fixedly connected to the top with a knocking plate, and a plurality of knocking heads are fixedly connected to both sides of the knocking plate. When the connecting plates vibrate, the knocking heads on the knocking plates knock the second fixed frame and the first fixed frame.

[0010] As a further solution of the present invention: an air inlet pipe for hot air entering and an exhaust pipe for hot air exhausting are fixedly connected to the outside of the heating cylinder, a sealing cloth is fixedly connected between the rotating disk and the electromagnet, and the sealing cloth forms a closed space together with the rotating disk, the supporting disk and the inner wall of the separation cylinder, a connecting branch pipe is fixedly connected between the exhaust pipe and the separation cylinder, and the connection point between the connecting branch pipe and the separation cylinder is arranged between the rotating disk and the supporting disk, and an outlet branch pipe for air outlet is arranged on the outside of the separation cylinder.

[0011] As a further solution of the present invention: a placement groove is provided on the top of the rotating disk, a moving block is provided inside the placement groove, a fixed rod is fixedly connected to the bottom of the moving block, the fixed rod passes through the rotating disk and is slidably connected to the rotating disk, a moving plate is fixedly connected between the multiple fixed rods, and a third spring is sleeved on the outside of the multiple fixed rods, and a pushing member is provided on the outside of the moving plate for pushing the material on the top of the rotating disk to fall.

[0012] As a further solution of the present invention: the pushing member includes: A mounting plate fixedly connected to the bottom of the rotating disk, one side of the mounting plate being rotatably connected to a rotating frame; Connecting shaft, the connecting shaft is fixedly connected to one side of the rotating frame, The reciprocating frame is arranged on the outside of the connecting shaft and is slidably connected to the connecting shaft, and the reciprocating frame is fixedly connected to the moving plate.

[0013] As a further solution of the present invention: the pushing member further includes: The second pulley is fixedly connected to one side of the rotating frame. A transmission rod is fixedly connected to the outer side of the gear, passes through the mounting plate and is rotatably connected to the mounting plate, and the outer side of the transmission rod is connected to the first pulley through a one-way damping bearing, and the first pulley and the second pulley are connected through a belt drive; The outer side of the gear is meshed with a rack, which is fixedly connected to the outer side of the rotating support disc.

[0014] As a further solution of the present invention: it also includes a rotating rod, which passes through the collecting cylinder and the separating cylinder in sequence and extends to the inside of the heating cylinder. The rotating rod is fixedly connected to the distributor, and a plurality of scrapers are provided inside the heating cylinder, and the plurality of scrapers are fixedly connected to the rotating rod.

[0015] As a further solution of the present invention: the elastic member includes a plurality of telescopic rods, both ends of the plurality of telescopic rods are fixedly connected to the rotating disk and the supporting disk respectively, and a first spring is sleeved on the outer side of the plurality of telescopic rods.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The material pushes multiple baffle components to drive the rotating disk and the rotating disk to rotate, and the material is evenly filled into the space between the rotating disk and the baffle. As the material on the top of the rotating disk increases, the elastic parts between the rotating disk and the supporting disk are squeezed, so that the rotating disk rotates and descends. When the rotating disk is lower than the bottom of the baffle, a large amount of material is quickly discharged through the gap and falls on the top of the distributor in the form of a ring, so that the material is spread more evenly when the distributor rotates, avoiding the difference in liquid film thickness caused by unilateral impact.

[0017] 2. An electromagnet is fixedly connected to the top of the rotating support plate, and a connecting plate is provided at the first opening at the bottom of the first fixed frame. The metal ball on the connecting spring plate at the bottom of the connecting plate is magnetically adsorbed with the electromagnet, thereby ensuring that the rotating disk is always below the retaining cylinder and ensuring that the material falls completely.

[0018] 3. A second spring is set on both sides of the connecting plate to intensify the vibration of the connecting plate, and a plurality of knocking plates are fixedly connected to the top of the connecting plate. When the connecting plate vibrates, the multiple knocking heads on the knocking plates continuously knock on both sides of the second fixed frame, thereby accelerating the flow of materials and avoiding blockage. At the same time, it can also prevent materials from sticking to the outside of the first fixed frame and the second fixed frame.

[0019] 4. The space between the rotating disk and the supporting disk is sealed with a sealing cloth, and the material on the top of the rotating disk is preheated by hot air. At the same time, openings are provided at the bottom of the first fixed frame and the second fixed frame. The hot air will pass through the first opening and the second opening and enter the first fixed frame and the second fixed frame. The first fixed frame and the second fixed frame are made of heat-conducting material to improve the overall preheating effect of the material.

[0020] 5. When the rotating disk rises, the transmission rod engages with the rack, and then the gear drives the transmission rod to rotate. The first pulley drives the second pulley to rotate through the belt, and then drives the rotating frame to rotate. The rotating frame drives the rotation through the connecting shaft to push the reciprocating frame to continuously reciprocate and rise, and then pushes the moving block on the top of the moving plate to eject the material on the top of the rotating disk, thereby preventing the top of the rotating disk from sticking and accelerating the uniform falling of the material. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below with reference to the accompanying drawings and examples.

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the cross-sectional structure of the separation cylinder and the heating cylinder of the present invention; Figure 3 This is a schematic diagram of the cross-sectional structure of the separation cylinder of the present invention; Figure 4 It is a schematic diagram of the structure of the rotating disk and the supporting disk of the present invention; Figure 5 It is a schematic diagram of the fixed disk structure of the present invention; Figure 6 It is a schematic diagram of the support plate structure of the present invention; Figure 7 This is a schematic diagram of the cross-sectional structure of the first fixing frame and the second fixing frame of the present invention; Figure 8 It is a schematic diagram of the structure of the second fixing frame of the present invention; Figure 9This is a schematic diagram of the structure of the pusher of the present invention; Figure 10 It is a schematic diagram of the enlarged structure of part A of the present invention.

[0023] In the figure: 1, collecting cylinder; 2, separating cylinder; 201, feeding pipe; 3, heating cylinder; 301, rotating rod; 302, scraper; 4, fixed plate; 400, rotating plate; 401, rotating plate; 402, supporting plate; 403, rotating support plate; 404, telescopic rod; 405, first spring; 406, blocking cylinder; 4011, placement groove; 5, blocking assembly; 501, first fixing frame; 502, second fixing frame; 503, sealing cloth; 601, connecting plate; 602, second spring; 603, connecting spring plate; 604, metal ball; 6 05. Knocking plate; 606. Knocking head; 607. Electromagnet; 700. Mounting plate; 701. Moving plate; 702. Moving block; 703. Fixed rod; 704. Third spring; 705. Rotating frame; 706. Connecting shaft; 707. Reciprocating frame; 708. One-way damping bearing; 709. Gear; 710. Transmission rod; 711. Rack; 712. First pulley; 713. Second pulley; 801. Inlet pipe; 802. Exhaust pipe; 803. Connecting branch pipe; 804. Exhaust branch pipe; 9. Driving motor; 10. Distributor. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0025] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0026] like Figures 1 to 10 As shown, a scraper evaporator with uniform heating includes the following embodiments: Example 1: Figures 1 to 5 As shown, it includes a collecting cylinder 1, a separating cylinder 2 and a heating cylinder 3, which are connected in sequence. The collecting cylinder 1, the separating cylinder 2 and the heating cylinder 3 are installed by welding or by a flange. A distributor 10 is provided inside the separating cylinder 2. In the actual evaporation process, the material enters the interior of the heating cylinder 3 through the separating cylinder 2, and the distributor 10 provided inside the separating cylinder 2 evenly sprinkles the material onto the inner wall. A uniform thin film is formed on the inner wall of the heating cylinder 3, and is heated by the hot air of the interlayer of the heating cylinder 3.

[0027] The apparatus further comprises: a fixed disk 4, the fixed disk 4 being fixedly connected to the interior of the separation drum 2, a baffle 406 being fixedly connected to the bottom of the fixed disk 4, a rotating disk 400 being rotatably connected to the bottom of the fixed disk 4, a rotating disk 401 being movably sleeved on the outer side of the baffle 406, a plurality of retractable baffle assemblies 5 being arranged between the rotating disk 400 and the rotating disk 401, and the plurality of baffle assemblies 5 being arranged in an annular manner around the center of the fixed disk 4; The feed pipe 201 is used for feeding. The feed pipe 201 is fixedly connected to the separation cylinder 2, and the communication port is set between the rotating disk 400 and the rotating disk 401. When the feed pipe 201 feeds, it pushes the multiple baffle components 5 to drive the rotating disk 401 to rotate and descend; The support plate 402 is fixedly connected to the inside of the separation cylinder 2, and the top of the support plate 402 is rotatably connected to a rotating support plate 403. An elastic member is provided between the rotating support plate 403 and the feed pipe 201 for supporting the rotating plate 401. A positioning member is provided between the rotating support plate 403 and the multiple baffle components 5 for positioning the rotating plate 401. When the rotating plate 401 is below the baffle cylinder 406, the material falls evenly to the top of the distributor 10.

[0028] It also includes a rotating rod 301, which passes through the collecting cylinder 1 and the separating cylinder 2 in sequence and extends to the inside of the heating cylinder 3. The rotating rod 301 is fixedly connected to the distributor 10, and a plurality of scrapers 302 are provided inside the heating cylinder 3, and the plurality of scrapers 302 are all fixedly connected to the rotating rod 301.

[0029] The elastic member includes a plurality of telescopic rods 404 , both ends of which are fixedly connected to the rotating disk 401 and the supporting disk 402 , respectively, and a first spring 405 is sleeved on the outer side of the plurality of telescopic rods 404 .

[0030] During specific implementation, the material is evaporated through the feed pipe 201. In the prior art, the material is often discharged directly to the top of the distributor 10, and the drive motor 9 at the top of the collecting cylinder 1 is driven. The output shaft of the drive motor 9 drives the fixedly connected rotating rod 301 to rotate, and the material is distributed evenly by utilizing centrifugal force. However, in actual operation, it is found that since the rotating rod 301 needs to be set at the center, the material input position can only be on one side of the top of the distributor 10. Therefore, when the material falls into the top of the distributor 10, the material will be more concentrated on the side of the feed pipe 201. The side, so the formation of thin wall cannot be uniform, thereby avoiding the serious imbalance of liquid film distribution of unilateral feeding of materials. The materials concentrate on one side of the distributor 10 and cannot be evenly spread by centrifugal force or the guide structure, resulting in too thick liquid film on one side and dry wall area on the other side due to lack of material, which significantly reduces the heat transfer efficiency. Therefore, in this solution, a buffer cavity is formed by setting the rotating disk 401 and the rotating disk 400 and the retaining cylinder 406, and the feed pipe 201 is set between the rotating disk 401 and the rotating disk 400. When the material is discharged, it does not fall directly on the top of the distributor 10, but falls At the top of the rotating disk 401, the material is blocked by the blocking cylinder 406, and a plurality of blocking components 5 are arranged between the rotating disk 401 and the rotating disk 400. The plurality of blocking components 5 are arranged in a ring around the center of the fixed disk 4 and are inclined to one end of the feed pipe 201. When the material enters through the feed pipe 201, the blocking component 5 blocks the material, and the plurality of blocking components 5 are pushed by the material to drive the rotating disk 401 and the rotating disk 400 to rotate, so that the material is evenly filled into the space between the rotating disk 401 and the blocking cylinder 406. As the rotating disk 40 1. As the amount of material at the top increases, the elastic member between the rotating disk 401 and the supporting disk 402 is squeezed, causing the rotating disk 401 to descend while rotating. When the rotating disk 401 is lower than the bottom of the retaining cylinder 406, a large amount of material is quickly discharged through the gap and falls on the top of the distributor 10 in a ring shape. This allows the distributor 10 to spread the material more evenly when rotating, avoiding differences in liquid film thickness caused by unilateral impact. The baffle assembly 5 is tilted and guided to achieve tangential decomposition of the material impact force; the rotating disk 401 is dynamically balanced and adjusted to adapt to different working loads.

[0031] In this embodiment: Figures 6 and 7 As shown, the baffle assembly 5 includes: A first fixed frame 501 is fixedly connected to the top of the rotating disk 401 and has a first opening at the bottom thereof; The second fixed frame 502 is arranged inside the rotating disk 401, and a second opening is provided at the bottom of the second fixed frame 502. The second fixed frame 502 passes through the top of the first fixed frame 501 and is slidably connected to the first fixed frame 501, and the second fixed frame 502 is fixedly connected to the rotating disk 400.

[0032] In specific implementation, when the rotating disk 401 descends with the weight of the material, the second fixed frame 502 is fixedly connected to the rotating disk 400, and the first fixed frame 501 is fixedly connected to the rotating disk 401, and the second fixed frame 502 slides out from the top of the first fixed frame 501, thereby partitioning the material as the rotating disk 401 descends, and ensuring that the discharged material can always push the barrier assembly 5, and the pre-stored space between the rotating disk 401 and the rotating disk 400 can be adjusted.

[0033] Example 2: Figures 6 and 7 The positioning components shown include: Multiple connecting plates 601, each of which is disposed at the first opening at the bottom of the first fixing frame 501, and second springs 602 are fixedly connected between two sides of the connecting plates 601 and two sides of the inner wall of the first fixing frame 501; Multiple connecting spring plates 603, the multiple connecting spring plates 603 are fixedly connected to the bottom of the connecting plate 601, and the bottom of the connecting spring plates 603 is fixedly connected to a metal ball 604; The electromagnet 607 is fixedly connected to the top of the rotating support plate 403. When the electromagnet 607 is energized, it is magnetically fixed to the metal ball 604.

[0034] During specific implementation, as the rotating disk 401 descends, a large amount of material falls evenly on the distributor 10. When the material input is reduced in the later stage, the elastic member between the rotating disk 401 and the rotating support disk 403 will push the rotating disk 401 to rise, thereby causing a small amount of material to be unable to fall completely. Therefore, in this solution, an electromagnet 607 is fixedly connected to the top of the rotating support disk 403, and a connecting plate 601 is provided at the first opening at the bottom of the first fixed frame 501. The metal ball 604 on the connecting spring plate 603 at the bottom of the connecting plate 601 is magnetically adsorbed with the electromagnet 607, thereby ensuring that the rotating disk 401 is always below the retaining cylinder 406, ensuring that the material falls completely.

[0035] In this embodiment, Figure 7 As shown, a plurality of connecting plates 601 are fixedly connected to the top with a knocking plate 605, and a plurality of knocking heads 606 are fixedly connected to both sides of the knocking plate 605. When the connecting plates 601 oscillate, the knocking heads 606 on the knocking plates 605 knock the second fixed frame 502 and the first fixed frame 501.

[0036] In a specific implementation, when the rotating disk 401 is in the process of rotating and descending, the metal ball 604 is fixedly connected to the connecting plate 601 through the connecting spring plate 603. When the rotating disk 401 rotates, the centrifugal effect is used to make the metal ball 604 drive the connecting spring plate 603 to vibrate. When the connecting spring plate 603 is made of elastic material, second springs 602 are provided on both sides of the connecting plate 601 to intensify the vibration of the connecting plate 601, and a plurality of knocking plates 605 are fixedly connected to the top of the connecting plate 601. When the connecting plate 601 vibrates, the plurality of knocking heads 606 on the knocking plates 605 continuously knock on both sides of the second fixed frame 502, thereby accelerating the flow of materials and avoiding blockage. At the same time, it can also prevent the materials from adhering to the outside of the first fixed frame 501 and the second fixed frame 502. And when the later material is discharged, the rotating disk 401 rises under the action of the elastic member, causing the deformation of the connecting spring plate 603. When the electromagnet 607 is powered off, the connecting spring plate 603 is acted upon by the metal ball 604 to vibrate the connecting spring plate 603. When the rotating disk 401 rises, the knocking head 606 on the knocking plate 605 continuously knocks the first fixed frame 501 and the second fixed frame 502. When the second fixed frame 502 shrinks to the inside of the first fixed frame 501, the material on the outside of the second fixed frame 502 is hung and dropped through the top of the first fixed frame 501 to prevent the outside of the second fixed frame 502 from sticking.

[0037] Example 3: Figures 2 to 3 As shown, an air inlet pipe 801 for hot air to enter and an exhaust pipe 802 for hot air to be discharged are fixedly connected to the outside of the heating cylinder 3, a sealing cloth 503 is fixedly connected between the rotating disk 401 and the electromagnet 607, and the sealing cloth 503 forms a closed space together with the rotating disk 401, the support disk 402 and the inner wall of the separation cylinder 2, a connecting branch pipe 803 is fixedly connected between the exhaust pipe 802 and the separation cylinder 2, and the connection point between the connecting branch pipe 803 and the separation cylinder 2 is arranged between the rotating disk 401 and the support disk 402, and an air outlet branch pipe 804 for air outlet is arranged on the outside of the separation cylinder 2.

[0038] During specific implementation, when external hot air passes into the interlayer of the heating cylinder 3 and is discharged through the exhaust pipe 802, the temperature of the discharged hot air decreases after heat exchange. At this time, in this solution, a connecting branch pipe 803 is set, and the connecting branch pipe 803 passes the hot air into the rotating disk 401 and the supporting disk 402, and the space between the rotating disk 401 and the supporting disk 402 is sealed by the sealing cloth 503. The material on the top of the rotating disk 401 is preheated by the hot air. At the same time, openings are provided at the bottom of the first fixed frame 501 and the second fixed frame 502. The hot air will pass through the first opening and the second opening and enter the first fixed frame 501 and the second fixed frame 502. The first fixed frame 501 and the second fixed frame 502 are made of heat-conducting material to improve the overall preheating effect of the material.

[0039] Example 4: Figure 6 and Figure 9 as well as Figure 10 As shown, a placement groove 4011 is provided on the top of the rotating disk 401, and a moving block 702 is provided inside the placement groove 4011. A fixed rod 703 is fixedly connected to the bottom of the moving block 702. The fixed rod 703 passes through the rotating disk 401 and is slidably connected to the rotating disk 401. A moving plate 701 is fixedly connected between multiple fixed rods 703, and a third spring 704 is sleeved on the outside of multiple fixed rods 703. A pushing member for pushing the material on the top of the rotating disk 401 to fall is provided on the outside of the moving plate 701.

[0040] The pushers include: A mounting plate 700 is fixedly connected to the bottom of the rotating disk 401, and a rotating frame 705 is rotatably connected to one side of the mounting plate 700; Connecting shaft 706, connecting shaft 706 is fixedly connected to one side of rotating frame 705, The reciprocating frame 707 is disposed outside the connecting shaft 706 and is slidably connected to the connecting shaft 706 , and the reciprocating frame 707 is fixedly connected to the moving plate 701 .

[0041] The pusher also includes: The second pulley 713 is fixedly connected to one side of the rotating frame 705. A transmission rod 710 is fixedly connected to the outside of the gear 709. The transmission rod 710 passes through the mounting plate 700 and is rotatably connected to the mounting plate 700. The outside of the transmission rod 710 is connected to the first pulley 712 via a one-way damping bearing 708. The first pulley 712 is connected to the second pulley 713 via a belt drive. The outer side of the gear 709 is meshed with a rack 711 , and the rack 711 is fixedly connected to the outer side of the rotating support plate 403 .

[0042] When the gear 709 is in the downward direction, the gear 709 on the outer side of the mounting plate 700 is meshed with the rack 711, and the transmission rod 710 is in a rotational connection state through the one-way damping effect of the one-way damping bearing 708. When the rotating disk 401 rises, the gear 709 is meshed with the rack 711, and the gear 709 drives the transmission rod 710 to rotate. The transmission rod 710 drives the first pulley 712 to rotate through the damping effect of the one-way damping bearing 708. The first pulley 712 rotates through the belt transmission second pulley 713, thereby driving the rotating frame 705 to rotate. The rotating frame 705 drives the rotation through the connecting shaft 706 to push the reciprocating frame 707 to continuously reciprocate and rise, thereby pushing the moving block 702 on the top of the moving plate 701 to eject the material on the top of the rotating disk 401, thereby avoiding adhesion on the top of the rotating disk 401 and accelerating the uniform falling of the material. It is worth noting that the top of the rotating disk 401 is set as an inclined surface inclined to the center of the circle.

[0043] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0044] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0045] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the content of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A scraper evaporator with uniform heating, comprising a collecting cylinder (1), a separating cylinder (2) and a heating cylinder (3), which are sequentially connected, a distributor (10) being provided inside the separating cylinder (2), and characterized in that: Also includes: The fixed disk assembly is arranged inside the separation cylinder (2), and comprises a fixed disk (4), a retaining cylinder (406), a rotating disk (400) and a rotating disk (401); wherein the retaining cylinder (406) is fixed to the bottom of the fixed disk (4), the rotating disk (400) is rotatably connected to the bottom of the fixed disk (4), and the rotating disk (401) is movably sleeved on the outside of the retaining cylinder (406); A retractable barrier mechanism is composed of a plurality of barrier assemblies (5) arranged in an annular shape around the center of the fixed disk (4), wherein the barrier assemblies (5) are connected between the rotating disk (401) and the rotary disk (400); A feed pipe (201) is connected to the separation cylinder (2) and has an opening located between the rotating disk (400) and the rotating disk (401), and is configured to push the baffle assembly (5) to drive the rotating disk (401) to rotate and descend during feeding; The support and positioning mechanism comprises a support disc (402), a rotating support disc (403), an elastic member, and a positioning member; the support disc (402) is fixed in the separation cylinder (2); the rotating support disc (403) is rotatably connected to the support disc (402) and reset via the elastic member; the positioning member is provided between the rotating support disc (403) and the baffle assembly (5) and is used to position the rotating disc (401); When the rotating disk (401) descends to below the retaining cylinder (406), the material is evenly distributed through the distributor (10).

2. The scraper evaporator with uniform heating according to claim 1, characterized in that: The baffle assembly (5) comprises: A first fixed frame (501), the first fixed frame (501) is fixedly connected to the top of the rotating disk (401), and a first opening is provided at the bottom of the first fixed frame (501); A second fixed frame (502), the second fixed frame (502) is arranged inside the rotating disk (401), a second opening is provided at the bottom of the second fixed frame (502), the second fixed frame (502) passes through the top of the first fixed frame (501) and is slidably connected to the first fixed frame (501), and the second fixed frame (502) is fixedly connected to the rotating disk (400).

3. The scraper evaporator with uniform heating according to claim 2, characterized in that: The positioning member includes: A plurality of connecting plates (601), the plurality of connecting plates (601) are respectively arranged at the first opening at the bottom of the first fixed frame (501), and second springs (602) are fixedly connected between two sides of the connecting plates (601) and two sides of the inner wall of the first fixed frame (501); A plurality of connecting spring plates (603), wherein the plurality of connecting spring plates (603) are fixedly connected to the bottom of the connecting plate (601), and a metal ball (604) is fixedly connected to the bottom of the connecting spring plates (603); The electromagnet (607) is fixedly connected to the top of the rotating support disc (403). When the electromagnet (607) is energized, it is magnetically fixed to the metal ball (604).

4. The scraper evaporator with uniform heating according to claim 3, characterized in that: The tops of the plurality of connecting plates (601) are all fixedly connected with a knocking plate (605), and both sides of the knocking plate (605) are all fixedly connected with a plurality of knocking heads (606). When the connecting plates (601) vibrate, the knocking heads (606) on the knocking plates (605) knock the second fixed frame (502) and the first fixed frame (501).

5. The scraper evaporator with uniform heating according to claim 2, characterized in that: The outside of the heating cylinder (3) is fixedly connected to an air inlet pipe (801) for hot air to enter and an exhaust pipe (802) for hot air to be discharged. A sealing cloth (503) is fixedly connected between the rotating disk (401) and the electromagnet (607). The sealing cloth (503) forms a closed space by being connected to the rotating disk (401), the supporting disk (402) and the inner wall of the separation cylinder (2). A connecting branch pipe (803) is fixedly connected between the exhaust pipe (802) and the separation cylinder (2). The connection point between the connecting branch pipe (803) and the separation cylinder (2) is arranged between the rotating disk (401) and the supporting disk (402), and an outlet branch pipe (804) for exhausting gas is arranged on the outside of the separation cylinder (2).

6. The scraper evaporator with uniform heating according to claim 1, characterized in that: A placement groove (4011) is provided on the top of the rotating disk (401), a moving block (702) is provided inside the placement groove (4011), a fixing rod (703) is fixedly connected to the bottom of the moving block (702), the fixing rod (703) passes through the rotating disk (401) and is slidably connected to the rotating disk (401), a moving plate (701) is fixedly connected between the plurality of fixing rods (703), and a third spring (704) is sleeved on the outer side of each of the plurality of fixing rods (703), and a pushing member for pushing the material on the top of the rotating disk (401) to fall is provided on the outer side of the moving plate (701).

7. The scraper evaporator with uniform heating according to claim 6, characterized in that: The pushing member includes: A mounting plate (700) is fixedly connected to the bottom of the rotating disk (401), and a rotating frame (705) is rotatably connected to one side of the mounting plate (700); The connecting shaft (706) is fixedly connected to one side of the rotating frame (705). The reciprocating frame (707) is arranged outside the connecting shaft (706) and is slidably connected to the connecting shaft (706), and the reciprocating frame (707) is fixedly connected to the movable plate (701).

8. The scraper evaporator with uniform heating according to claim 7, characterized in that: The pushing member further includes: The second pulley (713) is fixedly connected to one side of the rotating frame (705). A transmission rod (710), the transmission rod (710) is fixedly connected to the outside of the gear (709), the transmission rod (710) passes through the mounting plate (700) and is rotatably connected to the mounting plate (700), and the outside of the transmission rod (710) is connected to the first pulley (712) by providing a one-way damping bearing (708), and the first pulley (712) and the second pulley (713) are connected via a belt drive; The outer side of the gear (709) is meshedly connected with a rack (711), and the rack (711) is fixedly connected to the outer side of the rotating support disc (403).

9. The scraper evaporator with uniform heating according to claim 1, characterized in that: It also includes a rotating rod (301), which passes through the collecting cylinder (1) and the separating cylinder (2) in sequence and extends into the interior of the heating cylinder (3), wherein the rotating rod (301) is fixedly connected to the distributor (10), and a plurality of scrapers (302) are provided inside the heating cylinder (3), and the plurality of scrapers (302) are all fixedly connected to the rotating rod (301).

10. The scraper evaporator with uniform heating according to claim 9, characterized in that: The elastic member comprises a plurality of telescopic rods (404), both ends of the plurality of telescopic rods (404) are fixedly connected to the rotating disk (401) and the supporting disk (402), respectively, and a first spring (405) is sleeved on the outer sides of the plurality of telescopic rods (404).

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