Horizontal scraper dryer

Abstract

The invention discloses a horizontal scraper dryer which comprises a drying system and a material scraping and distributing system, and the material scraping and distributing system comprises a material scraping assembly and a material distributing assembly; the material scraping assembly and the material distributing assembly are both arranged on the drying system, and the material distributing assembly is arranged behind the material scraping assembly. The drying system comprises a drying plate which is horizontally arranged; the material distributing assembly and the material scraping assembly are arranged on the drying plate, the problems that a roller scraping plate drying machine and a belt type vacuum drying machine are long in drying time, low in drying efficiency and the like are solved, the overall production efficiency is greatly improved, and the economic effect is considerable.

Description

Technical Field

[0001] The present application relates to the field of material drying and processing, and in particular to a horizontal scraper dryer. Background Art

[0002] A dryer is a mechanical device that uses heat to reduce the moisture content of materials. It is used to dry objects. The dryer heats the material to vaporize the moisture (generally water or other volatile liquid components) to obtain a solid material with a specified moisture content.

[0003] In existing vacuum belt dryers, the liquid material to be dried is conveyed directly into the dryer through a conveyor mechanism and spread onto several drying belts within the dryer. Driven by a motor-driven rubber roller, the drying belts move at a set speed along the dryer cylinder, transferring the required drying energy to the material through contact heat transfer. When the drying belts retract, the dried material cakes are peeled off the belts and discharged through a discharge hopper. Summary of the Invention

[0004] In order to solve the problems existing in the prior art, the present application provides a horizontal scraper dryer.

[0005] In this application, the scraper and distribution assembly operates in a forward and return stroke. During the forward stroke, the scraper and distribution assembly scrapes dry material from the drying plate and then lays down wet material. Therefore, in this application, upstream and downstream are defined in terms of the scraper and distribution assembly's travel direction; the forward direction of the scraper and distribution assembly's travel is defined as the forward direction; the reverse direction is defined as the backward direction.

[0006] The specific technical solutions of this application are as follows:

[0007] A horizontal scraper dryer, which includes a drying system and a scraper material distribution system.

[0008] The scraper and material distribution system includes a scraper component and a material distribution component;

[0009] The scraper assembly and the cloth assembly are both arranged on the drying system, and the cloth assembly is arranged at the rear of the scraper assembly;

[0010] The drying system comprises a horizontally arranged drying plate; a cloth assembly and a scraper assembly are arranged on the drying plate.

[0011] In a specific embodiment, the dryer further comprises a lifting system, which can control the scraping assembly and / or the cloth assembly to move closer to or away from the drying system.

[0012] In a specific embodiment, the lifting system is connected to the scraper assembly; the lifting system can move the scraper assembly closer to or away from the drying plate.

[0013] In a specific embodiment, the scraper assembly includes a scraper, which is disposed above the drying plate and abuts against the upper surface of the drying plate.

[0014] In a specific embodiment, the scraper assembly includes a pressure wheel, which is arranged above the drying plate and can apply pressure to the material on the drying plate.

[0015] In a specific embodiment, the pressure wheel is arranged in front of the scraper. Preferably, the lower end surface of the scraper is located below the lower end surface of the pressure wheel.

[0016] In a specific embodiment, the lifting system includes a card assembly and a limit assembly connected to the scraper assembly, and the card assembly can move with the scraper assembly; when the limit assembly limits the card assembly, the card assembly drives the scraper assembly to move up and down;

[0017] Preferably, the limiting assembly includes a lifting portion and a falling portion respectively arranged at both ends of the drying plate, the falling portion being located at the front end of the scraper assembly's running path, and the lifting portion being located at the end of the scraper assembly's running path; when the scraper assembly starts to scrape the drying plate from the front end, the clamping plate assembly lowers the scraper assembly under the action of the falling portion; when the scraper assembly moves to the end, the clamping plate assembly rises under the action of the lifting portion;

[0018] Further preferably, the clamping plate assembly includes a fixing portion for lowering or fixing the scraping assembly and a loosening portion for raising, moving or rotating the scraping assembly. When the scraping assembly starts to scrape the drying plate from the front end, the fixing portion fixes the scraping assembly under the limit of the limit assembly. When the scraping assembly moves to the end, the limit assembly releases the fixation, and the loosening portion allows the scraping assembly to rise, move or rotate.

[0019] Further preferably, the lifting portion comprises a wedge-shaped block provided on the drying plate, and the wedge-shaped block is provided obliquely upward along the direction from front to rear of the scraper assembly;

[0020] Further preferably, the falling portion includes a push rod assembly, which is fixed on the drying plate, and when the scraper assembly is in the starting position, the push rod assembly abuts against the scraper assembly;

[0021] Further preferably, the push rod assembly includes a push rod and a push bar, the push rod abuts against the scraper plate of the scraper assembly, and the push plate abuts against the pressure wheel of the scraper assembly.

[0022] In a specific embodiment, a lifting shaft is provided between the clamping plate assembly and the scraper assembly; the lifting shaft can drive the scraper assembly to rise or fall;

[0023] Preferably, the card assembly includes a mounting frame, and the fixing portion, the slack portion and the lifting shaft are all mounted on the mounting frame;

[0024] Further preferably, the lifting shaft is hinged on the mounting frame;

[0025] Further preferably, the fixing portion includes a limiting shaft provided at the rear end of the lifting shaft and a fixing shaft located at the front end of the lifting shaft, and the limiting shaft is fixedly connected to the mounting bracket;

[0026] Further preferably, when the lifting shaft is fixed by the fixing portion, the limiting shaft and the fixing shaft respectively abut against two sides of the lifting shaft;

[0027] Further preferably, the slack portion includes a movable hole opened on the mounting frame, the fixed shaft is arranged in the movable hole, the movable hole extends along the vertical direction, and the fixed shaft can move up and down in the movable hole;

[0028] Further preferably, the lower end of the movable hole is located below the upper end surface of the lifting shaft, and the upper end of the movable hole is located above the upper end surface of the lifting shaft;

[0029] Further preferably, when the fixed shaft is located at the upper end of the movable hole, it is located above the upper end surface of the lifting shaft;

[0030] Further preferably, the lifting shaft abuts against the limiting shaft in the vertical direction or when the upper end of the lifting shaft tilts forward;

[0031] Further preferably, the card board assembly is provided with one, two or more than three, preferably three;

[0032] Further preferably, the fixing axes of the multiple clamping plate assemblies are coaxially arranged and interconnected.

[0033] In a specific embodiment, the material distribution assembly includes a material distribution pipe, one end of the material distribution pipe is for the wet material to enter, and the other end of the material distribution pipe is a free end for distributing the material, and the free end of the material distribution pipe is located above the drying plate;

[0034] Preferably, the material distribution pipe is connected to a drag chain, and the material is transported to the material distribution pipe via the drag chain.

[0035] In a specific embodiment, a plurality of the distribution pipes are provided, and the free ends of the distribution pipes are respectively provided at various positions on the end surface of the drying plate;

[0036] Preferably, three distribution tubes are provided, and the free ends of the three distribution tubes are evenly arranged on the end surface of the drying plate.

[0037] In a specific embodiment, the dryer further comprises a transmission system, wherein the transmission system is connected to the scraper assembly and the cloth assembly, so that the scraper assembly and the cloth assembly can move back and forth on the drying tray.

[0038] In a specific embodiment, a fixed plate is provided on the transmission system, and the scraper assembly and the cloth assembly are both provided on the fixed plate.

[0039] In a specific embodiment, the transmission system includes a power unit and a transmission unit, the power unit is connected to the transmission unit, and the scraper assembly and the cloth assembly are both connected to the transmission unit.

[0040] In a specific embodiment, the transmission part is selected from one of a chain drive, a gear rack drive, a belt drive, a ball screw, a trapezoidal screw, and a screw nut, preferably a ball screw;

[0041] Further preferably, at least one optical axis is provided on both sides of the transmission part.

[0042] In one embodiment, the power unit is a motor;

[0043] Preferably, a synchronization part is provided between the power part and the transmission part;

[0044] Further preferably, the synchronization part is a rotating shaft, and the rotating shaft is connected to the transmission part;

[0045] Further preferably, the synchronization part and the transmission part are connected by bevel gears.

[0046] In one embodiment, the drying plate is provided in plurality;

[0047] Preferably, a transmission part is provided on each drying plate; and all transmission parts are connected to the synchronization part;

[0048] Further preferably, at least one of a cloth component and a scraper component is provided on each drying plate.

[0049] In one embodiment, the drying plate is a hollow structure, and one side of the drying plate is connected to a steam inlet pipe;

[0050] Preferably, the steam inlet pipe is connected to all the drying plates;

[0051] Further preferably, a condensation outlet pipe is connected to one side of the drying plate;

[0052] Further preferably, the condensation outlet pipe is connected to all the drying plates;

[0053] Further preferably, the condensation outlet pipe and the steam inlet pipe are respectively located on two opposite sides of the drying tray.

[0054] In a specific embodiment, a side plate is provided on the drying plate, and the side plate is provided on two adjacent side surfaces of the drying plate;

[0055] Preferably, the drying plate is provided with an inclined cutout at one end in the moving direction of the cloth assembly and / or the scraper assembly;

[0056] Preferably, the cutout is inclined toward the middle along the side where the side panel is provided, toward the opposite side.

[0057] In one embodiment, a discharging system is provided below the drying system;

[0058] Preferably, the discharging system includes a storage bin and a discharging assembly, and the discharging assembly is arranged inside the storage bin;

[0059] Further preferably, the discharging assembly includes an auger, an auger shaft and a motor; the auger shaft is connected to the output shafts of the auger and the motor respectively.

[0060] In one embodiment, the dryer includes a housing system, and the drying system and the scraping and distributing system are both arranged inside the housing system;

[0061] Preferably, the housing system comprises a housing, a front panel, a rear panel and a base; the housing is hollow to form a chamber; the drying system and the scraping and distributing system are both arranged in the chamber of the housing;

[0062] Further preferably, easily detachable components capable of fixing the front panel and the rear panel respectively are provided at both ends of the housing;

[0063] Further preferably, the easily detachable assembly includes a fastening hand wheel for fixing the front panel and the rear panel to the housing;

[0064] Further preferably, the easily detachable component includes a cover plate moving module capable of moving the front panel and the rear panel respectively;

[0065] Further preferably, the easily detachable assembly includes a support frame for supporting the cover moving module, the front panel and the rear panel;

[0066] Further preferably, a viewing mirror and a light source mirror are provided on the housing, which are opposite to each other.

[0067] The present application also provides a lifting system, which can control a target device to rise or fall at a first target position, and control a target device to fall or rise at a second target position.

[0068] In one embodiment, the lifting system includes a card assembly and a limit assembly connected to the target device, wherein the card assembly can reciprocate with the target device between a first target position and a second target position; when the limit assembly limits the card assembly, the card assembly will move the target device up or down;

[0069] In one specific embodiment, the limiting assembly includes a lifting portion positioned at the second target position and a lowering portion positioned at the first target position. The clamping plate assembly includes a fixing portion for lowering or securing the target device and a loosening portion for raising, moving, or rotating the target device. At the second target position, the lifting portion cooperates with the loosening portion, causing the fixing portion to release the target device from its position, thereby limiting the target device and raising it. At the first target position, the lowering portion cooperates with the fixing portion to limit the target device again, causing it to fall and secure it.

[0070] The lifting system further comprises a lifting shaft for connecting the target device and the card assembly. The lifting shaft is fixedly connected to the target device.

[0071] In one embodiment, the fixing portion includes a limiting shaft and a fixed shaft positioned on either side of the lifting shaft. The lifting portion includes a wedge-shaped block mounted on the drying plate, the wedge-shaped block being tilted upward along the front-to-back direction of the target device. The lowering portion includes a push rod. The clamping plate assembly includes a mounting frame, to which the lifting shaft is hinged. The slack portion includes a movable hole defined in the mounting frame.

[0072] Beneficial effects

[0073] The horizontal scraper dryer of the present application solves the problems of long drying time and low drying efficiency of drum scraper dryers and belt vacuum dryers, greatly improves the overall production efficiency and has considerable economic effects.

[0074] The scraper feeding-transmission-lifting-drying system is controlled in a coordinated manner to achieve adjustable feeding speed, drying speed and drying time, complete drying in a single layer, dry evenly and with high drying efficiency.

[0075] The wet material is spread and scraped at the same time. The system has a simple design structure, uses less space, has high space utilization, low manufacturing difficulty and low failure rate.

[0076] The scraper material distribution system is equipped with a separate distribution pipe and evenly opened distribution holes to achieve uniform distribution;

[0077] Scraping and spreading are carried out simultaneously, so there will be no accumulation of materials on the drying plate and the operation failure rate is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0078] Figure 1 This is a schematic diagram of the overall structure of the dryer of this application;

[0079] Figure 2 This is the structural diagram of the scraper and material distribution system of this application;

[0080] Figure 3 It is a cross-sectional view of the card board assembly of this application;

[0081] Figure 4 It is the structural diagram of the transmission system of this application;

[0082] Figure 5 It is the structural diagram of the discharging system of this application.

[0083] In the figure, 1. Shell system; 2. Drying plate; 21. Side plate; 3. Scraper assembly; 31. Scraper; 32. Press wheel; 4. Fabric assembly; 41. Fabric pipe; 5. Clamp assembly; 51. Limit shaft; 52. Fixed shaft; 53. Movable hole; 6. Lifting shaft; 7. Transmission system; 71. Power unit; 72. Transmission unit; 8. Discharging system; 81. Storage bin; 82. Auger. DETAILED DESCRIPTION

[0084] The present application is described in detail below. Although specific embodiments of the present application are shown, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present application and to fully convey the scope of the present application to those skilled in the art.

[0085] It should be noted that certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that technicians may use different nouns to refer to the same component. This specification and claims do not use the difference in nouns as a way to distinguish components, but use the difference in the functions of the components as the criterion for distinction. As mentioned throughout the specification and claims, "including" or "comprising" are open-ended terms and should be interpreted as "including but not limited to". The subsequent description of the specification is a preferred embodiment of the present application, but the description is based on the general principles of the specification and is not intended to limit the scope of the present application. The scope of protection of this application shall be as defined by the attached claims.

[0086] refer to Figures 1 to 5 The present application provides a horizontal scraper 31 dryer, which includes a drying system and a scraper and cloth system, the scraper and cloth system includes a scraper component 3 and a cloth component 4; the scraper component 3 and the cloth component 4 are both arranged on the drying system, and the cloth component 4 is arranged at the rear position of the scraper component 3; the drying system includes a horizontally arranged drying plate 2; the cloth component 4 and the scraper component 3 are arranged on the drying plate 2.

[0087] refer to Figure 1 The dryer is used to dry the wet material to obtain dry material. Among them, the cloth component 4 can convey the wet material to the drying system, the drying system is used to dry the wet material, and the scraping system scrapes and collects the dry material obtained from the drying system.

[0088] The wet material is dried using the drying plate 2, which is a plate-shaped structure. The wet material can be transported to the top of the drying plate 2, and then the wet material is evenly covered on the surface of the drying plate 2. The drying plate 2 dries the wet material. The wet material can be laid flat on the drying plate 2, thereby increasing the drying area of ​​the wet material. The drying plate 2 can also heat the wet material, further improving the drying efficiency of the drying plate 2 for the wet material.

[0089] refer to Figure 1 The cloth component 4 and the scraper component 3 are both arranged on the drying plate 2. The cloth component 4 and the scraper component 3 will move back and forth on the drying plate 2. The cloth component 4 will transport the wet material to the drying plate 2, and then flatten the wet material on the drying plate 2. The scraper component will scrape off the dry material obtained after drying on the drying plate 2, remove and collect the dry material, so that the wet material can be coated on the drying plate 2.

[0090] refer to Figure 2 The material distribution assembly 4 is positioned behind the scraper assembly 3. The scraper assembly 3 scrapes the dry material off the drying plate 2 in the front position. Immediately thereafter, the material distribution assembly 4 transfers the wet material to the drying plate 2 for coating. The material distribution assembly 4 and the scraper assembly 3 can simultaneously scrape the dry material and distribute the wet material. Therefore, the dryer can dry more wet material within a given period of time, speeding up the dryer's wet material processing speed and improving drying efficiency.

[0091] As the spreading assembly 4 and scraper assembly 3 reciprocate, starting from their starting position, the scraper assembly 3 moves forward, scraping the dry material off the drying plate 2. The spreading assembly 4, located behind the scraper assembly 3, then applies the wet material to the drying plate 2. After reaching one end of the drying plate 2, the scraper assembly 3 and the spreading assembly 4 reverse direction, returning to their starting position to reset. By reciprocating, the scraper assembly 3 and the spreading assembly 4 simultaneously remove dry material and apply wet material during their travel, accelerating the processing of both wet and dry materials and improving drying efficiency. During their return travel, the drying plate 2 continues to dry the wet material, giving the drying disc more time to process the wet material, allowing for more thorough drying and enhancing drying results.

[0092] refer to Figure 1 and Figure 2The dryer also includes a lifting system, which can control the scraping component 3 and / or the cloth component 4 to move closer to or away from the drying system.

[0093] As the material distribution assembly 4 and scraper assembly 3 reciprocate on the drying plate 2, the scraper assembly 3 contacts the surface of the drying plate 2 during its scraping stroke. During the return stroke, the lifting system raises the scraper assembly 3 to separate it from the drying plate 2 to prevent it from impacting the wet and dry materials on the drying plate 2. Once the scraper assembly 3 and / or material distribution assembly 4 return to their starting position, the lifting system lowers the scraper assembly 3 and / or material distribution assembly 4, allowing the scraper assembly 3 to scrape the dry materials during its stroke. The lifting system raises and lowers the scraper assembly 3 and / or material distribution assembly 4, keeping them away from the drying plate during their reciprocating motion. This allows the scraper assembly 3 and / or material distribution assembly 4 to avoid interfering with or scratching the wet and / or dry materials on the drying plate 2, allowing the drying plate 2 to dry the wet materials smoothly. When lowered, the scraper assembly 3 and the distribution assembly 4 fall onto the drying plate 2, so that the scraper assembly 3 and / or the distribution assembly 4 can scrape and distribute dry materials and wet materials.

[0094] In a specific embodiment, the lifting system is connected to the scraper assembly 3 ; the lifting system can move the scraper assembly 3 closer to or farther away from the drying plate 2 .

[0095] refer to Figure 2 The scraper assembly 3 includes a scraper 31 , which is disposed above the drying plate 2 and abuts against the upper surface of the drying plate 2 .

[0096] The scraper 31 is a plate-shaped structure. When scraping dry material from the drying plate 2, the lower surface of the scraper 31 abuts against the upper surface of the drying plate 2, allowing the scraper 31 to scrape the dry material off the drying plate 2. When the scraper 31 returns, the lifting system raises the scraper 31 away from the drying plate 2 and then moves it back to its starting position. The scraper 31 removes dry material from the drying plate 2.

[0097] refer to Figure 2 The scraper assembly 3 includes a pressure wheel 32 , which is arranged above the drying plate 2 and can apply pressure to the material on the drying plate 2 .

[0098] The pressing wheel 32 is used to press the dry material, pressing the dry material tightly on the drying plate 2 to reduce the sliding of the dry material on the drying plate 2. This enables the scraper 31 to continuously scrape the dry material and reduce the residue of dry material on the drying plate 2.

[0099] On the other hand, the pressing wheel 32 presses the dry material against the drying plate 2, reducing the sliding of the dry material on the drying plate 2 to prevent the sliding dry material from affecting the wet material or dry material that has not been dried yet; and improving the drying effect of the drying plate 2 on the wet material.

[0100] The pressure wheel 32 is arranged in front of the scraper 31 . Preferably, the lower end surface of the scraper 31 is located below the lower end surface of the pressure wheel 32 .

[0101] The pressing wheel 32 is arranged in front of the scraper 31. The pressing wheel 32 contacts the upper surface of the dry material and presses the dry material onto the drying plate 2. The lower end of the scraper 31 contacts the lower end surface of the dry material, so that the scraper 31 can completely scrape off the dry material and reduce the residue of dry material on the drying plate 2.

[0102] The lifting system includes a card assembly 5 and a limit assembly connected to the scraper assembly 3. The card assembly 5 can move with the scraper assembly 3. When the limit assembly limits the card assembly 5, the card assembly 5 will drive the scraper assembly 3 to move up and down.

[0103] refer to Figure 2 and Figure 3 The clamping plate assembly 5 is fixed to the scraper assembly 3 and reciprocates with the scraper assembly 3. Limiting assemblies are located at the starting and end positions at both ends of the drying plate 2. When in the starting position, the limiting assemblies lower the clamping plate assembly 5 and the scraper assembly 3 to the upper end surface of the drying plate 2. At the end position, the limiting assemblies raise the clamping plate assembly 5 and the scraper assembly 3, moving the scraper assembly 3 away from the drying plate 2. The clamping plate assembly 5 and the limiting assemblies drive the scraper assembly 3 up and down.

[0104] Preferably, the limiting assembly includes a lifting portion and a falling portion respectively provided at both ends of the drying plate 2, the falling portion being located at the front end of the running path of the scraper assembly 3, and the lifting portion being located at the end of the running path of the scraper assembly 3; when the scraper assembly 3 starts to scrape the drying plate 2 from the front end, the clamping plate assembly 5 lowers the scraper assembly 3 under the action of the falling portion; when the scraper assembly 3 moves to the end, the clamping plate assembly 5 rises under the action of the lifting portion;

[0105] The operating path refers to the path that the scraper assembly 3 takes when scraping, i.e., the travel path of the scraper assembly 3. Therefore, the lowering portion is located at the front end of the travel path, i.e., the lowering portion is located at the starting position of the travel path (i.e., the starting position of the drying plate 2). Similarly, the raising portion is located at the end position of the drying plate 2.

[0106] Therefore, the cloth assembly 4 will abut against the drying plate 2 at the starting position of the drying plate 2 under the action of the falling part. When the cloth assembly 4 moves to the end of the drying plate 2, the cloth assembly will move away from the drying plate 2 under the action of the lifting part.

[0107] refer to Figure 2 and Figure 3 , further preferably, the clamping plate assembly 5 includes a fixing portion for lowering or fixing the scraping assembly 3 and a loosening portion for raising, moving or rotating the scraping assembly 3. When the scraping assembly 3 starts to scrape the drying plate 2 from the front end, the fixing portion fixes the scraping assembly 3 under the limit of the limit assembly. When the scraping assembly 3 moves to the end, the limit assembly loosens the fixing portion, and the loosening portion causes the scraping assembly 3 to rise, move or rotate.

[0108] The fixing portion is used to fix the scraper assembly 3 so that the scraper assembly 3 is fixed and does not move. The fixing portion can fix the scraper 31 and the pressure wheel 32.

[0109] When the scraper 31 scrapes the dry material on the drying plate 2 , the fixing portion fixes the scraper 31 , thereby increasing the force exerted by the scraper 31 on the dry material, so that the dry material can fall off the drying plate 2 .

[0110] During the return stroke, the scraper 31 assembly moves from the end position of the drying plate 2 to the starting position. To reduce the scraper 31 from scratching the dry material and thus affecting the undried wet or dry material, the scraper 31 is raised away from the drying plate 2 under the upgrading system. At the same time, the slack portion releases the fixed position of the scraper 31, allowing the scraper 31 to rotate or move, further reducing the impact of the scraper 31 on the undried wet or dry material. This allows the wet material on the drying plate 2 to remain uniform, allowing the drying plate 2 to dry the wet material more thoroughly, thereby improving the drying effect and efficiency of the drying plate 2 on the wet material.

[0111] Similarly, the fixing portion and the loosening portion can also fix and loosen the pressing wheel 32 .

[0112] refer to Figure 2 and Figure 3 , further preferably, the lifting portion includes a wedge-shaped block (not shown in the figure) provided on the drying plate, and the wedge-shaped block is inclined upward along the direction from front to rear when the scraper assembly 3 runs;

[0113] When the scraper assembly 3 moves to the end position during the stroke, the scraper assembly 3 will contact the wedge block first, and the scraper assembly 3 will continue to move forward and will rise along the upper surface of the wedge block. The scraper assembly 3 will move away from the drying plate 2 at the end position.

[0114] Further preferably, the falling portion includes a push rod assembly, which is fixed on the drying plate 2. When the scraper assembly 3 is in the starting position, the push rod assembly abuts against the scraper assembly 3.

[0115] The push rod assembly can abut against the scraper 31. When the scraper 31 of the scraper assembly 3 moves to the starting position, it will abut against the push rod assembly, and then the push rod assembly will abut against the scraper 31, and then abut the scraper 31 from the relaxed position to the fixed position, thereby fixing the scraper 31.

[0116] refer to Figure 2 and Figure 3 , further preferably, the push rod assembly includes a push rod and a push bar, the push rod abuts against the scraper 31 of the scraper assembly 3, and the push plate abuts against the pressure wheel 32 of the scraper assembly 3.

[0117] In one embodiment, two wedge blocks are provided, one corresponding to the pressure wheel 32 and the other to the scraper 31. When the pressure wheel 32 and the scraper 31 reach their end positions, they contact their respective wedge blocks, causing the scraper 31 and the pressure wheel 32 to rise simultaneously. Similarly, a push rod and a push bar correspond to the pressure wheel 32 and the scraper 31, respectively. When the scraper 31 and the pressure wheel 32 reach their starting positions, the push rod and the push bar contact the pressure wheel 32 and the scraper 31, respectively, securing the pressure wheel 32 and the scraper 31.

[0118] refer to Figure 2 and Figure 3 A lifting shaft 6 is provided between the card assembly 5 and the scraper assembly 3; the lifting shaft 6 can drive the scraper assembly 3 to rise or fall;

[0119] The lifting shaft 6 is fixedly connected to the scraper assembly 3 and can drive the scraper assembly 3 to rise or fall. The lifting shaft 6 is used to connect the clamping plate assembly 5 and the scraper assembly 3, so that the clamping plate assembly 5 can fix or loosen the scraper assembly 3. At the same time, the lifting shaft 6 can also limit and guide the scraper assembly 3 to reduce the occurrence of deviation of the scraper assembly 3.

[0120] refer to Figure 2 and Figure 3 , preferably, the card assembly 5 includes a mounting frame, and the fixing portion, the slack portion and the lifting shaft 6 are all mounted on the mounting frame;

[0121] Further preferably, the lifting shaft 6 is hinged on the mounting frame;

[0122] The lifting shaft 6 can rotate on the mounting frame, and the hanging assembly is fixed to the lower end of the lifting shaft 6. Therefore, when the lifting shaft 6 rotates from the vertical position to the horizontal position, it will simultaneously drive the scraper assembly 3 to rotate from the bottom of the lifting shaft 6 to a position parallel to the lifting shaft 6, thereby rotating the scraper assembly 3 from the lowest lower position to the upper position, thereby achieving the rise of the scraper assembly 3. When the lifting shaft 6 rotates to the vertical position again, the scraper assembly 3 will be rotated to the lower position again, thereby achieving the descent of the scraper assembly 3.

[0123] Further preferably, the fixing portion includes a limiting shaft 51 provided at the rear end of the lifting shaft 6 and a fixing shaft 52 located at the front end of the lifting shaft 6, and the limiting shaft 51 is fixedly connected to the mounting bracket;

[0124] Further preferably, when the lifting shaft 6 is fixed by the fixing portion, the limiting shaft 51 and the fixing shaft 52 are respectively in contact with two sides of the lifting shaft 6;

[0125] In this application, "stroke" refers to the distance traveled by the scraper 31 as it scrapes the dry material. Positional qualifiers such as "front end," "rear end," and "end" in this application are based on the direction of stroke. Directional qualifiers such as "up" and "down" in this application are based on the actual placement of the dryer in use.

[0126] The fixed shaft 52 and the limiting shaft 51 are located on either side of the lifting shaft 6, and both are located above the hinge axis between the lifting shaft 6 and the mounting bracket. The fixed shaft 52 and the limiting shaft 51 simultaneously limit the position of the lifting shaft 6, thereby limiting the position of the lifting shaft 6. When the fixed shaft 52 is disengaged from one side of the lifting shaft 6, the fixed shaft 52 releases the limit on the lifting shaft 6, allowing the lifting shaft 6 to rotate toward the fixed shaft 52.

[0127] refer to Figure 2 and Figure 3 , further preferably, the slack portion includes a movable hole 53 opened on the mounting frame, the fixed shaft 52 is arranged in the movable hole 53, the movable hole 53 extends along the vertical direction, and the fixed shaft 52 can move up and down in the movable hole 53;

[0128] Further preferably, the lower end of the movable hole 53 is located below the upper end surface of the lifting shaft 6, and the upper end of the movable hole 53 is located above the upper end surface of the lifting shaft 6;

[0129] Further preferably, when the fixed shaft 52 is located at the upper end of the movable hole 53 , it is located above the upper end surface of the lifting shaft 6 ;

[0130] Further preferably, the lifting shaft 6 abuts against the limiting shaft 51 in the vertical direction or when the upper end of the lifting shaft 6 tilts forward;

[0131] refer to Figure 2 and Figure 3 The fixed shaft 52 is able to move up and down within the movable hole 53. When the fixed shaft 52 moves upward to above the lifting shaft 6, it releases its restraining action on the lifting shaft 6, allowing the lifting shaft 6 to rotate. When the fixed shaft 52 moves downward, it is positioned below the movable hole 53, and the fixed shaft 52 and the restraining shaft 51 are positioned on either side of the lifting shaft 6, respectively. The lifting shaft 6 is clamped and secured. Simultaneously, the scraper 31 and the pressure roller 32 are secured.

[0132] Further preferably, the card board assembly 5 is provided with one, two or more than three, preferably three;

[0133] Further preferably, the fixed shafts 52 of the multiple clamping plate assemblies 5 are coaxially arranged and interconnected.

[0134] refer to Figure 2 and Figure 3 In one embodiment, the clip assembly 5 is connected to the scraper 31. Three clip assemblies 5 are fixed to each scraper 31, and the three clip assemblies 5 are respectively located near the ends and the middle of the scraper 31. The use of the three clip assemblies 5 to secure the scraper 31 improves the connection strength of the scraper 31, making the scraper 31 more stable when scraping dry materials. Each scraper 31 is provided with a fixed shaft 52. The fixed shaft 52 passes through all three clip assemblies 5 and is located in the movable holes 53 of the three clip assemblies 5.

[0135] When the scraper assembly 3 moves to the end position of the drying plate 2, the wedge block contacts the fixed shaft 52. Under the action of the wedge block, the lifting shaft 6 moves upward, and then moves to the upper end of the movable hole 53 and above the lifting shaft 6. The lifting shaft 6 is then released from the restraint and rotates, thereby driving the scraper assembly 3 upward.

[0136] After the fixed shaft 52 moves upward in the movable hole 53, the lifting shaft 6 deflects and rotates under the action of gravity or the action of the limit column, and the upper end surface of the lifting shaft 6 rotates below the fixed shaft 52. When the hanging assembly returns and leaves the wedge block, the fixed shaft 52 drops onto the lifting shaft 6, causing the lifting shaft 6 to rotate, raising the scraper 31 and the pressure roller 32 away from the drying plate 2. This prevents the scraper 31 and the pressure roller 32 from affecting the wet material on the drying plate 2.

[0137] When the scraper assembly 3 moves from the end position to the starting position, the pressure wheel 32 and scraper 31 come into contact with the push rod and push bar, and the push rod and scraper 31 abut until the scraper 31 returns to the starting position. At this time, the push rod pushes the scraper 31 to be fixed in the vertical direction, so that the lifting shaft 6 tightly abuts against the limit post. At this time, the lifting shaft 6 moves from below the fixed shaft 52 to the side. Under the action of gravity, the fixed shaft 52 falls into the movable hole 53, thereby limiting and clamping the lifting shaft 6. The scraper 31 then moves in the direction of travel to scrape the dry material. Similarly, at the starting position, the pressure wheel 32 is also fixed.

[0138] refer to Figure 2 and Figure 3 In a specific embodiment, two card assembly 5 are provided on the pressing wheel 32, and the two card assembly 5 are respectively provided at the two ends of the pressing wheel 32. Similarly, the pressing wheel 32 can be raised and lowered under the action of the card assembly 5.

[0139] The material distribution assembly 4 includes a material distribution pipe 41. One end of the material distribution pipe 41 is for wet material to enter. The other end of the material distribution pipe 41 is a free end for material distribution. The free end of the material distribution pipe 41 is located above the drying plate 2.

[0140] refer to Figure 1 and Figure 3 Preferably, the fabric pipe 41 is connected to a drag chain, and the material is transported to the fabric pipe 41 via the drag chain.

[0141] The drag chain is provided with a hose (not shown in the figure), and the fabric tube 41 is connected to the hose. The drag chain can drive the hose to move, thereby driving the fabric tube 41 to move back and forth on the drying plate. The hose can be bent, so the wet material enters the hose from the fixed end of the hose, and then the free end of the hose moves back and forth and transports the wet material to the fabric tube 41.

[0142] The wet material is located in the drag chain, which is connected to the distribution pipe 41. The drag chain transports the wet material into the distribution pipe 41, which then drives the distribution pipe 41 to move back and forth across the drying plate 2. The drag chain is located to one side of the drying plate 2 to prevent the distribution pipe 41 and the drag chain from moving above the drying plate 2 and to prevent the distribution pipe 41 from scratching the wet material as it moves across the drying plate 2.

[0143] In one embodiment, each drying plate 2 is provided with a distribution tube 41 having multiple distribution holes evenly spaced therein. The wet material exits the distribution tube 41 through the distribution holes and flows onto the drying plate 2, completing the distribution process. Spray nozzles are located at the distribution holes to diffusely spray the wet material, ensuring a more even distribution of the wet material across the drying plate. The distribution tubes 41 are arranged along the width of the drying plate 2, ensuring a more even distribution of the wet material across the drying plate 2 during its travel.

[0144] There are multiple distribution pipes 41, and the free ends of the distribution pipes 41 are respectively arranged at various positions on the end surface of the drying plate 2;

[0145] In one embodiment, preferably, three distribution tubes 41 are provided, with their free ends evenly spaced on the end surfaces of the drying plate 2. The distribution tubes 41 are arranged along the length of the drying plate 2 and evenly spaced across the width of the drying plate 2. The three distribution tubes 41 reciprocate simultaneously with the scraper assembly 3, evenly delivering the wet material onto the drying plate 2.

[0146] refer to Figure 4 The dryer further comprises a transmission system 7, which is connected to the scraper assembly 3 and the cloth assembly 4 so that the scraper assembly 3 and the cloth assembly 4 can move back and forth on the drying plate.

[0147] A fixed plate is provided on the transmission system 7 , and the scraper assembly 3 and the cloth assembly 4 are both provided on the fixed plate.

[0148] The fixed plate connects the scraper assembly 3 and the distribution assembly 4. The lifting system is mounted on the fixed plate, which is a fixed structure. The transmission system 7 drives the lifting system back and forth. Therefore, the transmission system 7 directly drives the fixed plate back and forth, thereby simultaneously driving the distribution assembly 4 and the scraper assembly 3 back and forth. This reduces the number of connecting structures while maintaining an appropriate distance between the distribution assembly 4 and the scraper assembly 3, thereby reducing interference between the distribution assembly 4 and the scraper assembly 3.

[0149] refer to Figure 4 The transmission system 7 includes a power unit 71 and a transmission unit 72 , the power unit 71 is connected to the transmission unit 72 , and the scraper assembly 3 and the cloth assembly 4 are both connected to the transmission unit 72 .

[0150] The transmission part 72 is selected from one of a chain drive, a gear rack drive, a belt drive, a ball screw, a trapezoidal screw, and a screw nut, preferably a ball screw;

[0151] Further preferably, at least one optical axis is provided on both sides of the transmission portion 72 .

[0152] The power unit 71 is an electric motor;

[0153] In one embodiment, the power unit 71 drives the lead screw to rotate, which in turn drives the ball nut to reciprocate. The ball nut is fixedly connected to a fixed plate. Optical shafts are connected to both ends of the fixed plate. The optical shafts both guide the fixed plate and limit its rotation. The friction between the ball nut and the lead screw is minimal, so the power unit 71 can drive the lead screw with minimal driving force.

[0154] Preferably, a synchronization part is provided between the power part 71 and the transmission part 72;

[0155] Further preferably, the synchronization part is a rotating shaft, and the rotating shaft is connected to the transmission part 72;

[0156] Further preferably, the synchronization portion and the transmission portion 72 are connected by bevel gears.

[0157] The drying plate 2 is provided with a plurality of;

[0158] refer to Figure 1 and Figure 4 Preferably, a transmission part 72 is provided on each drying plate 2; all transmission parts 72 are connected to the synchronization part;

[0159] Further preferably, at least one of a cloth assembly 4 and a scraper assembly 3 is provided on each drying plate 2 .

[0160] In one embodiment, the dryer comprises multiple drying plates 2, a material distribution assembly 4, a scraper assembly 3, a fixed plate, and a transmission unit 72. The rotating shaft is fixedly connected to the output shaft of the motor in the power unit 71. The power unit 71 rotates the rotating shaft, which in turn rotates the lead screw via the bevel gear, thereby achieving reciprocating motion of the fixed plate. Because the bevel gears and ball screws offer extremely high transmission efficiency and low resistance, the power unit 71, using a single motor, can achieve reciprocating motion of multiple fixed plates, scraper assemblies 3, and material distribution assembly 4.

[0161] refer to Figure 1 The drying plate 2 is a hollow structure, and one side of the drying plate 2 is connected to a steam inlet pipe;

[0162] Preferably, the steam inlet pipe is connected to all the drying plates 2;

[0163] Further preferably, a condensation outlet pipe is connected to one side of the drying plate 2;

[0164] Further preferably, the condensation outlet pipe is connected to all the drying plates 2;

[0165] Further preferably, the condensation outlet pipe and the steam inlet pipe are respectively located on two opposite sides of the drying tray.

[0166] In one embodiment, a steam inlet pipe and a condensate outlet pipe are used to introduce heat into the drying plates 2, thereby heating the drying plates. The steam inlet pipe and the condensate outlet pipe are located on either side of the drying plates 2 in the width direction. Both the steam inlet pipe and the condensate outlet pipe are arranged vertically and communicate with each of the vertically stacked drying plates 2. Only one steam inlet pipe and one condensate outlet pipe are required to connect all drying plates 2, simplifying the drying system structure and providing a more uniform heat source within the drying plates 2, reducing variations in dryness between dry materials and improving the drying efficiency of the dryer.

[0167] refer to Figure 1 , a side plate 21 is provided on the drying plate 2, and the side plate 21 is provided on two adjacent side surfaces of the drying plate 2;

[0168] The side plate 21 is used to prevent the wet material from flowing down from the drying plate 2 during coating. The other side of the side plate 21 is a free side. When the dry material is scraped off, it will fall from the drying plate 2 from the free side.

[0169] Preferably, the drying plate 2 is provided with an inclined cutout at one end in the moving direction of the cloth component 4 and / or the scraper component 3;

[0170] Preferably, the cutout is inclined toward the middle along the side where the side plate 21 is provided, toward the opposite side.

[0171] The incision is located at the end of the drying plate 2. When the scraper 31 moves to the end of the drying plate 2, the dry material will fall from the incision, reducing the dry material residue on the drying plate 2.

[0172] refer to Figure 1 and Figure 5 , a discharging system 8 is provided below the drying system;

[0173] Preferably, the discharging system 8 includes a storage bin 81 and a discharging assembly, and the discharging assembly is arranged inside the storage bin 81;

[0174] Further preferably, the discharging assembly includes an auger 82, an auger 82 shaft and a motor; the auger 82 shaft is connected to the output shafts of the auger 82 and the motor respectively.

[0175] After the scraper 31 scrapes the dry material from the drying plate 2, the dry material accumulates on the drying plate 2 and then falls from the drying plate 2. The fallen dry material enters the auger 82. The motor drives the auger shaft to rotate in the auger 82, collecting the dry material collected in the auger 82 and transporting it to the target location.

[0176] refer to Figure 1 and Figure 5 , the dryer includes a shell system 1, and the drying system and the scraping and distributing system are both arranged inside the shell system 1;

[0177] Preferably, the housing system 1 includes a housing, a front panel, a rear panel and a base; the housing is hollow to form a chamber; the drying system and the scraping and distributing system are both arranged in the chamber of the housing;

[0178] Further preferably, easily detachable components capable of fixing the front panel and the rear panel respectively are provided at both ends of the housing;

[0179] Easy-to-remove components facilitate the removal and installation of the front and rear panels, allowing workers to easily enter the housing to inspect and repair the drying system. They also help to clear material blockages.

[0180] Further preferably, the easily detachable assembly includes a fastening hand wheel for fixing the front panel and the rear panel to the housing;

[0181] Further preferably, the easily detachable component includes a cover plate moving module capable of moving the front panel and the rear panel respectively;

[0182] Further preferably, the easily detachable assembly includes a support frame for supporting the cover moving module, the front panel and the rear panel;

[0183] Further preferably, a viewing mirror and a light source mirror are provided on the housing, which are opposite to each other.

[0184] The light source mirror can input light into the shell, and then the staff can observe the drying conditions of wet materials and dry materials inside the shell system 1 through the mirror, and can know the running conditions of the dry materials in real time to avoid blockage of the dry materials.

[0185] The present application also provides a lifting system, which can control a target device to rise or fall at a first target position, and control a target device to fall or rise at a second target position.

[0186] In a specific embodiment, the target device can be a scraper or a pressure wheel, the first target position can be the initial position of the drying plate, and the second target position can be the end position of the drying plate.

[0187] The lifting system includes a card assembly 5 and a limit assembly connected to the target device. The card assembly 5 can move back and forth between a first target position and a second target position along with the target device. When the limit assembly limits the card assembly 5, the card assembly 5 will move the target device up or down.

[0188] In one embodiment, reference Figure 2 and Figure 3 The clamping plate assembly 5 is fixed to the scraper assembly 3 and reciprocates with the scraper assembly 3. Limiting assemblies are located at the starting and end positions at both ends of the drying plate 2. When in the starting position, the limiting assemblies lower the clamping plate assembly 5 and the scraper assembly 3 to the upper end surface of the drying plate 2. At the end position, the limiting assemblies raise the clamping plate assembly 5 and the scraper assembly 3, moving the scraper assembly 3 away from the drying plate 2. The clamping plate assembly 5 and the limiting assemblies drive the scraper assembly 3 up and down.

[0189] The limiting assembly includes a lifting portion positioned at the second target position and a lowering portion positioned at the first target position. The clamping plate assembly 5 includes a fixing portion for lowering or securing the target device and a loosening portion for raising, moving, or rotating the target device. At the second target position, the lifting portion cooperates with the loosening portion, releasing the fixing portion from securing the target device and limiting the position to raise the target device. At the first target position, the lowering portion cooperates with the fixing portion to limit the target device again, causing it to fall and secure.

[0190] In a specific embodiment, the falling portion is located at the front end of the running path of the scraper assembly 3, and the lifting portion is located at the end of the running path of the scraper assembly 3; when the scraper assembly 3 starts to scrape the drying plate 2 from the front end, the clamping plate assembly 5 lowers the scraper assembly 3 under the action of the falling portion; when the scraper assembly 3 moves to the end, the clamping plate assembly 5 rises under the action of the lifting portion; when the scraper 31 scrapes the dry material on the drying plate 2, the fixing portion fixes the scraper 31, increases the force applied by the scraper 31 to the dry material, and enables the dry material to fall off the drying plate 2. During the return stroke, the scraper 31 assembly moves from the end position of the drying plate 2 to the starting position. To reduce the scraper 31 from scratching the dry material and thus affecting the undried wet or dry material, the scraper 31 is raised away from the drying plate 2 under the upgrading system. At the same time, the relaxation portion releases the scraper 31 from its fixed position, allowing the scraper 31 to rotate or move, further reducing the impact of the scraper 31 on the undried wet or dry material. This allows the wet material on the drying plate 2 to remain uniform, allowing the drying plate 2 to dry the wet material more thoroughly, thereby improving the drying effect and efficiency of the drying plate 2 on the wet material. Similarly, the fixing portion and the limit assembly can also fix and relax the pressure wheel 32.

[0191] The lifting system further comprises a lifting shaft for connecting the target device and the card assembly. The lifting shaft is fixedly connected to the target device.

[0192] The fixing portion includes a limiting shaft 51 and a fixing shaft 52 positioned on either side of the lifting shaft 6. The lifting portion comprises a wedge-shaped block mounted on the drying plate, tilted upward along the front-to-back direction of the target device. The lowering portion comprises a push rod. The clamping plate assembly 5 includes a mounting frame, to which the lifting shaft 6 is hinged. The slack portion comprises a movable hole 53 defined in the mounting frame.

[0193] At the second target position, the wedge guides the fixed shaft 52 upward to above the lifting shaft 6, releasing the fixed shaft 52's restraining action on the lifting shaft 6. The lifting shaft 6 can then rotate, raising the target device. At the first target position, the push rod returns the lifting shaft or target device to its vertical lower position, causing the fixed shaft 52 to move downward, dropping to the lower end of the movable hole 53. The fixed shaft 52 and the restraining shaft 51 are positioned on either side of the lifting shaft 6, clamping and securing the lifting shaft 6. This completes the lowering and securing of the target device.

[0194] To sum up, the present application provides a dryer, in which the wet material in the drag chain enters the fabric tube 41, and the wet material is evenly transported to the drying plate 2 through the fabric tube 41. When the fabric tube 41 moves forward during the stroke, the scraper 31 and the pressure wheel 32 are located in front of the fabric tube 41, and the pressure wheel 32 compacts the dry material on the drying plate 2 to reduce the slippage of the dry material. The scraper 31 scrapes the dry material off the drying plate 2, and then the material falls off the drying plate 2 from the side of the scraper 31.

[0195] When the pressing wheel 32 and the scraper 31 run to the end position, the fixed shaft 52 will contact the wedge block, and the fixed shaft 52 will move upward along the wedge block, so that the fixed shaft 52 rises from the side of the lifting shaft 6 to the top of the lifting shaft 6, releasing the limiting effect on the lifting shaft 6, and then the lifting shaft 6 will rotate. At the same time, the fixed shaft 52 falls to cause the lifting shaft 6 to rotate, and then the pressing wheel 32 and the scraper 31 rotate and rise, and move away from the drying plate 2, so that the pressing wheel 32 and the scraper 31 are separated from the drying plate 2 during the return process, reducing the impact on the undried wet material on the drying plate 2 until they return to the starting position.

[0196] At the starting position, the push rod and the push bar will push the scraper 31 and the pressure wheel 32 respectively, and push the scraper 31 and the pressure wheel 32 to the vertical position. At this time, the lifting shaft 6 is also pushed to the vertical position. Under the action of gravity, the fixed shaft 52 will fall in the movable hole 53, and then the fixed shaft 52 and the limiting shaft 51 will clamp the fixed lifting shaft 6 at the same time, fixing the lifting shaft 6, the pressure wheel 32 and the scraper 31, thereby completing the reset.

[0197] The scraped dry material will fall along the free side of the drying plate 2 and then be collected in the auger 82 bin. Then, the auger 82 shaft rotates and transports the dry material out of the housing to the target location.

[0198] This specific embodiment is merely an explanation of the present application and is not a limitation of the present application. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but as long as they are within the scope of the claims of the present application, they are protected by the patent law.

Claims

1. A horizontal scraper dryer, wherein: Including drying system and scraping and spreading system, The scraper and material distribution system includes a scraper component and a material distribution component; The scraper assembly and the cloth assembly are both arranged on the drying system, and the cloth assembly is arranged at the rear of the scraper assembly; The drying system includes a horizontally arranged drying plate; a cloth assembly and a scraper assembly are arranged on the drying plate; The dryer further comprises a transmission system, which is connected to the scraping assembly and the distributing assembly so as to enable the scraping assembly and the distributing assembly to move back and forth on the drying plate. The dryer further comprises a lifting system, which is capable of controlling the scraping assembly and / or the cloth assembly to move closer to or away from the drying system.

2. The drying machine according to claim 1, wherein The lifting system is connected to the scraper assembly; the lifting system can make the scraper assembly move closer to or away from the drying plate.

3. The drying machine according to claim 1 or 2, wherein: The scraper assembly includes a scraper plate, which is arranged above the drying plate and contacts the upper surface of the drying plate.

4. The drying machine according to claim 3, wherein: The scraper assembly includes a pressure wheel, which is arranged above the drying plate and can apply pressure to the material on the drying plate.

5. The drying machine according to claim 4, wherein The pressure wheel is arranged in front of the scraper. The drying machine according to claim 5 , wherein: The lower end surface of the scraper is located below the lower end surface of the pressure wheel.

7. The drying machine according to claim 1 or 2, wherein: The lifting system includes a card plate assembly and a limit assembly connected to the scraper assembly. The card plate assembly can move with the scraper assembly. When the limit assembly limits the card plate assembly, the card plate assembly will drive the scraper assembly to move up and down.

8. The drying machine according to claim 7, wherein The limiting assembly includes a lifting part and a falling part respectively arranged at both ends of the drying plate, the falling part is located at the front end of the scraper assembly's running path, and the lifting part is located at the end of the scraper assembly's running path; when the scraper assembly starts to scrape the drying plate from the front end, the clamping plate assembly descends under the action of the falling part; when the scraper assembly moves to the end, the clamping plate assembly rises under the action of the lifting part.

9. The drying machine according to claim 8, wherein The clamping plate assembly includes a fixing portion for lowering or fixing the scraping assembly and a loosening portion for raising, moving or rotating the scraping assembly. When the scraping assembly starts to scrape the drying plate from the front end, the fixing portion fixes the scraping assembly under the limit of the limit assembly. When the scraping assembly moves to the end, the limit assembly loosens the fixing portion, and the loosening portion allows the scraping assembly to rise, move or rotate.

10. The drying machine according to claim 9, wherein The lifting portion includes a wedge-shaped block arranged on the drying plate, and the wedge-shaped block is arranged upwardly and obliquely along the direction from front to rear of the scraper assembly.

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