A biomass energy raw material screening device

Abstract

The present application relates to the technical field of raw material screening equipment, and in particular to a biomass energy raw material screening device, which includes a frame and a screening assembly arranged on the frame, the screening assembly includes a mounting frame arranged on the frame and a first screening net arranged on the mounting frame, the mounting frame is provided with an adjustment assembly for adjusting the mesh size of the first screening net; the adjustment assembly includes an unwinding roller rotatably connected to the mounting frame, an adjustment plate sliding on the mounting frame, a winding roller rotatably connected to the adjustment plate, and an adjustment net fixed on the unwinding roller, and the meshes on the adjustment net and the meshes on the first screening net are staggered. The present application has the effect of automatically cleaning the first screening net.

Description

Technical Field

[0001] The present application relates to the technical field of raw material screening equipment, and in particular to a biomass energy raw material screening device. Background Art

[0002] The raw materials of biomass pellets usually include wood, straw, reeds, corn stalks, rice straw, etc. When producing biomass pellets, impurities and moisture in the raw materials are first removed, and the pretreated raw materials are crushed to make them into fine powder suitable for granulation; the fine powder is then granulated by pressing, extrusion or rotation to form granular substances of a certain size, and then in order to ensure the stability of the pellets during transportation and storage, they need to be cooled, and then the fine particles and impurities in the pellets are removed by screening to improve the purity and quality of the product. Finally, the screened pellets are packaged for easy storage and transportation.

[0003] For example, the Chinese patent document with the announcement number CN118321139B discloses a screening device for biomass fertilizer production, including a frame, a conveyor belt is installed on the frame, and the belt body of the conveyor belt is provided with a plurality of sieve holes in the form of through holes; a storage bin, the upper and lower ends of the storage bin are open, and the storage bin is installed above the conveyor belt through a fixed plate, and the bottom of the storage bin is rotatably connected with a baffle, and after the baffle is flipped to a horizontal state, the bottom of the storage bin will be closed; a flip mechanism, the flip mechanism is arranged on the storage bin, and is used to drive the baffle to flip up and down reciprocatingly when the conveyor belt is running, so that the mouth of the storage bin is intermittently open. When in use, the baffle is driven to flip up and down reciprocatingly by the flip mechanism, so that the biomass fertilizer in the storage bin can intermittently fall from the storage bin to the belt body of the conveyor belt, and the sieve holes on the belt body can screen the powder in the biomass fertilizer, and the granular biomass fertilizer remains on the conveyor belt.

[0004] In the above-mentioned related technologies, the biomass particles can be screened by a conveyor belt. However, when the biomass particles are screened by a screening machine, some biomass particles are easily stuck in the mesh holes on the surface of the screening net, and then the mesh holes on the surface of the screening net are blocked, so that biomass particles with smaller diameters cannot pass through, affecting the screening effect. Summary of the invention

[0005] The present application provides a biomass energy raw material screening device, which aims to solve the problem in the related art that biomass particles easily block the mesh holes on the surface of the screening net.

[0006] The present application provides a biomass energy raw material screening device that adopts the following technical solution:

[0007] A biomass energy raw material screening device comprises a frame and a screening component arranged on the frame, the screening component comprises a mounting frame arranged on the frame and a first screening net arranged on the mounting frame, the mounting frame is provided with an adjusting component for adjusting the mesh size of the first screening net; the adjusting component comprises a unwinding roller rotatably connected to the mounting frame, an adjusting plate sliding on the mounting frame, a winding roller rotatably connected to the adjusting plate, and an adjusting net fixed on the unwinding roller, the upper surface of the adjusting net abuts against the lower surface of the first screening net, the end of the adjusting net away from the unwinding roller is fixed on the winding roller, and at the same time, one end of the adjusting net is wound around the winding roller, and the other end is wound around the unwinding roller, and the mesh on the adjusting net and the mesh on the first screening net are staggered; the mounting frame is provided with a clamping component for clamping and fixing the adjusting net, and the mounting frame is provided with a pushing component, the pushing component is used to push the clamping component to clamp and fix the adjusting net, and is also used to drive the adjusting net to move.

[0008] By adopting the above technical solution, when cleaning the raw materials stuck on the first screening net, under the action of the clamping component, the pushing component drives the adjusting net to move, so that the adjusting net wrapped around the unwinding roller is separated from the unwinding roller, and then the overlapping area of ​​the mesh holes of the first screening net and the mesh holes of the adjusting net can be adjusted to increase the overlapping area of ​​the mesh holes of the first screening net and the mesh holes of the adjusting net. At this time, the raw materials stuck on the first screening net will be separated under the action of gravity, thereby achieving the purpose of automatically cleaning the raw materials.

[0009] Optionally, the clamping assembly includes a mounting plate sliding on a mounting frame, a first clamping plate fixed on the mounting plate, and a second clamping plate slidably connected to the mounting plate, wherein the second clamping plate is arranged above the first clamping plate, and the pushing assembly is used to push the second clamping plate to move in a direction close to the first clamping plate.

[0010] By adopting the above technical solution, when it is necessary to drive the adjustment net to move, the pushing component drives the second clamping plate to move in the direction close to the first clamping plate, and then the adjustment net is fixed between the first clamping plate and the second clamping plate. At this time, the mounting plate is driven to move by the pushing component, and the first clamping plate and the second clamping plate on the mounting plate drive the adjustment net to move.

[0011] Optionally, the pushing assembly includes a pushing shaft rotatably connected to the mounting frame, a mounting rod fixed on the pushing shaft, a moving rod slidably connected to the mounting rod, and a pushing rod fixed on the second clamping plate, one end of the moving rod is hinged on the second clamping plate, a limiting plate is provided on the mounting frame, a pushing groove for clamping the pushing rod is provided on the limiting plate, the pushing groove includes a first sliding part, a connecting part and a second sliding part, the first sliding part and the second sliding part are arranged in parallel, and the first sliding part is arranged above the second sliding part, and the connecting part is used to connect the first sliding part and the second sliding part.

[0012] By adopting the above technical solution, when the pushing rod is in the first sliding part, the second clamping plate and the first clamping plate do not clamp the adjusting net. When the adjusting net is moved, the position of the adjusting net can be adjusted. When the pushing rod is in the second sliding part, the first clamping plate and the second clamping plate clamp the adjusting net, and then the pushing shaft can drive the second clamping plate and the mounting plate to move, and at this time drive the adjusting net to move away from the unwinding roller, thereby achieving the purpose of facilitating the adjustment of the position of the adjusting net.

[0013] Optionally, a fixing component is provided on the mounting frame, and when the position of the adjustment net below the first screening net is adjusted, the position of the adjustment net between the fixing component and the unwinding roller remains unchanged; the fixing component includes a first fixing plate and a second fixing plate fixed on the mounting frame and a fixing rod fixed on the driving shaft, the adjustment net is arranged between the first fixing plate and the second fixing plate, the first fixing plate is set to an elastic rubber material, and the end of the fixing rod away from the driving shaft abuts against the first fixing plate.

[0014] By adopting the above technical solution, when the driving shaft rotates to drive the adjusting component to rotate, the fixing rod will also be driven to rotate, so that the fixing rod pushes the first fixing plate to move toward the second fixing plate, and then squeezes the first fixing plate, so that the first fixing plate and the second fixing plate fix the adjusting net, thereby achieving that when the position of the adjusting net under the first screening net is adjusted, the position of the adjusting net between the winding roller and the fixing assembly remains unchanged.

[0015] Optionally, a second screening net is provided on the mounting frame, one end of the second screening net is fixed to the mounting frame, and a rotating roller is fixed to the other end, the rotating roller is rotatably connected to the adjustment plate, and the second screening net is wound around the rotating roller, and the surface of the second screening net abuts against the surface of the adjustment net between the fixed component and the winding roller; the mounting frame is provided with a control component for driving the adjustment plate to move along the length direction of the first screening net.

[0016] By adopting the above technical solution, when the adjusting plate moves, the winding roller and the rotating roller rotate at the same time, so that the second screening net and the adjusting net on the winding roller are unfolded, and the unfolded second screening net is above the first screening net. While moving, the overlapping area of ​​the second screening net and the adjusting net always remains unchanged. When the second screening net is fully unfolded, the position of the adjusting net below the first screening net is adjusted by the pushing component and the clamping component, so that the overlapping area of ​​the mesh holes of the first screening net and the mesh holes of the adjusting net becomes larger. Due to the action of the fixing component, the position of the adjusting net below the second screening net remains unchanged at this time, thereby realizing screening of raw materials while cleaning the raw materials stuck on the first screening net.

[0017] Optionally, the control assembly includes a first control wheel rotatably connected to the mounting frame, a first control rope wrapped around the first control wheel, a second control wheel rotatably connected to the mounting frame, and a second control rope wrapped around the second control wheel, one end of the first control rope away from the first control wheel is fixed to an adjustment plate, one end of the second control rope away from the second adjustment wheel is also fixed to the adjustment plate, and the first control rope and the second control rope are arranged on opposite sides of the adjustment plate.

[0018] Optionally, a reset assembly is provided on the second control wheel, and the reset assembly is used to drive the second control wheel to rotate in the opposite direction. The reset assembly includes a reset shaft fixed on the mounting frame and a volute spring fixed on the reset shaft, and one end of the volute spring away from the reset shaft is fixed on the second control wheel.

[0019] By adopting the above technical solution, when the motor drives the first control wheel to rotate, the first control rope will be wound around the first control wheel, and then drive the adjustment plate to rotate. At the same time, the second control rope will be detached from the second control wheel. At this time, the vortex spring is in an energized state. When the motor drives the first control wheel to rotate in the opposite direction, the second control wheel is driven to rotate in the opposite direction under the action of the vortex spring, so that the unfolded second control rope is wound around the second control wheel.

[0020] Optionally, a mounting groove is provided on the mounting frame, the adjustment plate slides in the mounting groove, a corrugated plate is provided in the mounting groove, the corrugated plate is provided on both sides of the adjustment plate, one end of the corrugated plate is fixed on the inner wall of the mounting groove, and the other end is fixed on the adjustment plate, and the corrugated plate is used to seal the mounting groove.

[0021] In summary, this application has the following beneficial effects:

[0022] By moving the adjusting net, the overlapping area between the meshes of the first screening net and the adjusting net becomes larger. At this time, the raw materials stuck in the first screening net will fall under the action of gravity, achieving the purpose of automatic cleaning, and at the same time achieving the purpose of cleaning and screening the raw materials at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0024] Figure 2 It is a schematic diagram of the structure of the screening component of an embodiment of the present application.

[0025] Figure 3 It is a schematic diagram of the structure of the regulating component of an embodiment of the present application.

[0026] Figure 4 yes Figure 3 Enlarged view of point A in the middle.

[0027] Figure 5 It is an exploded schematic diagram of the push rod and the push groove of the embodiment of the present application.

[0028] Figure 6 It is a schematic diagram of the positions of the adjustment net and the second screening net in an embodiment of the present application.

[0029] Reference numerals: 01, frame; 02, second screening net; 03, rotating roller; 1, screening assembly; 11, mounting frame; 12, first screening net; 2, adjusting assembly; 21, unwinding roller; 22, adjusting plate; 23, winding roller; 24, adjusting net; 241, mounting groove; 242, corrugated plate; 243, supporting roller; 3, clamping assembly; 31, mounting plate; 32, first clamping plate; 33, second clamping plate; 4, pushing assembly; 41, pushing shaft; 42 , mounting rod; 43, moving rod; 44, pushing rod; 45, limiting plate; 46, pushing groove; 461, first sliding part; 462, connecting part; 463, second sliding part; 5, fixing assembly; 51, first fixing plate; 52, second fixing plate; 53, fixing rod; 6, control assembly; 61, first control wheel; 62, first control rope; 63, second control wheel; 64, second control rope; 7, reset assembly; 71, reset shaft; 72, volute spring. DETAILED DESCRIPTION

[0030] The following combination Figure 1-Figure 6 This application is described in further detail.

[0031] The present application embodiment discloses a biomass energy raw material screening device. Figure 1A biomass energy raw material screening device includes a frame 01 and a screening component 1 arranged on the frame 01 and a swinging component for driving the screening component 1 to swing back and forth. The screening component 1 is used to screen biomass raw material particles. The swinging component can be composed of a motor and an eccentric cam. Since the swinging component belongs to the prior art, the specific structure of the swinging component is not described in detail in this embodiment; in addition, an adjusting component 2 is arranged on the screening component 1, and the adjusting component 2 is used to adjust the mesh size on the screening component 1. When the mesh becomes larger, the biomass particles stuck in the mesh can fall off, thereby achieving the purpose of facilitating the cleaning of the mesh.

[0032] Reference Figure 1 and Figure 2 The screening assembly 1 includes a mounting frame 11 connected to the swing assembly and a first screening net 12 arranged on the mounting frame 11, and the mounting frame 11 is tilted so that one end of the first screening net 12 is high and the other end is low. The raw material falls from the opening of the discharge pipe to the high end of the first screening net 12, and then the raw material is screened during the swinging of the first screening net 12 and the mounting frame 11.

[0033] Reference Figures 2 to 6 The adjusting assembly 2 includes an unwinding roller 21 rotatably connected to the mounting frame 11, an adjusting plate 22 sliding on the mounting frame 11, a winding roller 23 rotatably connected to the adjusting plate 22, and an adjusting net 24 fixed on the unwinding roller 21, the upper surface of the adjusting net 24 abuts against the lower surface of the first screening net 12, and the adjusting net 24 is slidably connected to the mounting frame 11, and one end of the adjusting net 24 away from the unwinding roller 21 is fixed on the winding roller 23, and one end of the adjusting net 24 is wound around the winding roller 2 3, and the other end is wound on the unwinding roller 21. The adjusting net 24 is also provided with mesh holes, and the mesh holes on the adjusting net 24 and the mesh holes on the first screening net 12 are staggered. The larger the overlapping area of ​​the mesh holes on the adjusting net 24 and the mesh holes on the first screening net 12, the larger the raw material particles falling from the first screening net 12. In addition, in order to facilitate the driving of the winding roller 23 and the unwinding roller 21 to rotate, a motor is provided on the mounting frame 11, and the motor can drive the winding roller 23 and the unwinding roller 21 to rotate forward or reverse.

[0034] Reference Figures 2 to 6In order to facilitate the installation of the adjustment plate 22, a mounting groove 241 is provided on the mounting frame 11, and the adjustment plate 22 slides in the mounting groove 241. The mounting groove 241 penetrates the mounting frame 11 along the width direction of the first screening net 12. The mounting groove 241 is arranged along the length direction of the first screening net 12, and a corrugated plate 242 is arranged in the mounting groove 241. One end of the corrugated plate 242 is fixed on the inner wall of the mounting groove 241, and the other end is fixed on the adjustment plate 22, and the corrugated plate 242 is used to adjust the mounting groove 241. 1 is blocked to prevent the screened raw materials from escaping from the mounting groove 241; when the adjusting plate 22 is in the initial position, the corrugated plate 242 is in an expanded state and blocks the mounting groove 241. When the second screening net 02 is fully expanded, the corrugated plate 242 is in a folded state. In this embodiment, the corrugated plates 242 are arranged on both sides of the adjusting plate 22, and the states of the corrugated plates 242 on both sides are in opposite settings. No matter where the adjusting plate 22 is, the corrugated plate 242 can block the mounting groove 241.

[0035] Reference Figures 2 to 6 , a plurality of support rollers 243 are arranged on the installation frame 11, and the support rollers 243 are used to turn the adjustment net 24. In this embodiment, four support rollers 243 are arranged, and a clamping assembly 3 for clamping and fixing the adjustment net 24 is arranged on the installation frame 11; a pushing assembly 4 is also arranged on the installation frame 11, and the pushing assembly 4 is used to push the clamping assembly 3 to clamp and fix the adjustment net 24. At the same time, the pushing assembly 4 can also drive the adjustment net 24 to move, so that the adjustment net 24 on the unwinding roller 21 is separated from the unwinding roller 21, and then the mesh overlap area of ​​the first screening net 12 and the mesh overlap area of ​​the adjustment net 24 can be adjusted. In addition, a fixing assembly 5 is arranged on the installation frame 11, and when adjusting the position of the adjustment net 24 below the first screening net 12, the position of the adjustment net 24 between the fixing assembly 5 and the unwinding roller 21 can be kept unchanged.

[0036] Reference Figures 2 to 6 The clamping assembly 3 includes a mounting plate 31 sliding on the mounting frame 11, a first clamping plate 32 fixed on the mounting plate 31, and a second clamping plate 33 slidably connected to the mounting plate 31. The second clamping plate 33 is arranged above the first clamping plate 32. The pushing assembly 4 is used to push the second clamping plate 33 to move in a direction close to or away from the first clamping plate 32, thereby achieving clamping and fixing of the adjustment net 24.

[0037] Reference Figures 2 to 6The pushing assembly 4 includes a pushing shaft 41 rotatably connected to the mounting frame 11, a mounting rod 42 fixed on the pushing shaft 41, a moving rod 43 slidably connected to the mounting rod 42, and a pushing rod 44 fixed on the second clamping plate 33, one end of the moving rod 43 is hinged on the second clamping plate 33. In this embodiment, a plurality of mounting rods 42 and moving rods 43 are provided, and a plurality of moving rods 43 and mounting rods 42 are arranged at intervals along the axial direction of the pushing shaft 41; at the same time, a limiting plate 45 is provided on the mounting frame 11, and a pushing groove 46 for clamping the pushing rod 44 is provided on the limiting plate 45, and the pushing groove 46 includes a first sliding portion 461, a connecting portion 462 and a second sliding portion 463, the first sliding portion 461 and the second sliding portion 463 are arranged in parallel, and the first sliding portion 461 is arranged above the second sliding portion 463, and the connecting portion 462 is used to connect the first sliding portion 461 and the second sliding portion 463.

[0038] When the push rod 44 is in the first sliding portion 461, the second clamping plate 33 and the first clamping plate 32 do not clamp the adjustment net 24. When the push rod 44 is in the second sliding portion 463, the first clamping plate 32 and the second clamping plate 33 clamp the adjustment net 24, and when the push shaft 41 rotates, the unwinding roller 21 rotates in the opposite direction, and then the push shaft 41 can drive the second clamping plate 33 and the mounting plate 31 to move, and at this time drive the adjustment net 24 to move in the direction away from the unwinding roller 21, adjust the position of the adjustment net 24, so that the mesh on the adjustment net 24 and the mesh on the first screening net 12 overlap area becomes larger, and then the raw materials stuck on the first screening net 12 will automatically fall under the action of gravity, so as to achieve the purpose of automatic cleaning. In addition, in order to facilitate the rotation of the push shaft 41, a motor for driving the push shaft 41 to rotate is also provided in the mounting frame 11.

[0039] Reference Figures 2 to 6 The fixing assembly 5 includes a first fixing plate 51 and a second fixing plate 52 fixed on the mounting frame 11 and a fixing rod 53 fixed on the driving shaft 41. The adjusting net 24 is arranged between the first fixing plate 51 and the second fixing plate 52. In this embodiment, the first fixing plate 51 is set to an elastic rubber material, and one end of the fixing rod 53 away from the driving shaft 41 abuts against the first fixing plate 51. When the driving shaft 41 rotates and drives the adjusting assembly 2 to rotate, it will also drive the fixing rod 53 to rotate, so that the fixing rod 53 pushes the first fixing plate 51 to move toward the second fixing plate 52, and then squeezes the first fixing plate 51, so that the first fixing plate 51 and the second fixing plate 52 fix the adjusting net 24, so that when the position of the adjusting net 24 below the first screening net 12 is adjusted, the position of the adjusting net 24 between the winding roller 23 and the fixing assembly 5 remains unchanged.

[0040] Reference Figures 2 to 6A second screening net 02 is arranged on the mounting frame 11, one end of the second screening net 02 is fixed on the mounting frame 11, and a rotating roller 03 is fixed on the other end. The rotating roller 03 is rotatably connected to the adjusting plate 22, and the second screening net 02 is wound around the rotating roller 03. The second screening net 02 and the adjusting net 24 between the fixing component 5 and the winding roller 23 overlap, and the surface of the first screening net 12 abuts against the surface of the adjusting net 24. In this embodiment, the rotating roller 03 is arranged below the winding roller 23, and the adjusting plate 2 2 is also provided with a motor for driving the rotating roller 03 to rotate forward or reverse; in addition, a control component 6 is provided on the mounting frame 11, and the control component 6 is used to drive the adjustment plate 22 to move along the length direction of the first screening net 12. When the adjustment plate 22 moves, the winding roller 23 and the rotating roller 03 rotate at the same time, so that the second screening net 02 and the adjustment net 24 on the winding roller 23 are unfolded, and the unfolded second screening net 02 is above the first screening net 12, and the first screening net 12 and the second screening net 02 are arranged in parallel and spaced apart.

[0041] Reference Figures 1 to 6 When it is necessary to clean the raw materials stuck on the first screening net 12, the control component 6 drives the adjustment plate 22 to move, and at the same time, the rotating roller 03 and the winding roller 23 are rotated at the same time under the action of the motor. During the movement, the overlapping area of ​​the second screening net 02 and the adjustment net 24 remains unchanged; in addition, since the position of the adjustment net 24 does not change, the overlapping area of ​​the mesh of the first screening net 12 and the mesh of the adjustment net 24 is the same as the overlapping area of ​​the mesh of the second screening net 02 and the mesh of the adjustment net 24. Then, in the process of moving the adjustment plate 22, the second screening net 02 will Move to the bottom of the discharge pipe, at this time the raw materials will fall onto the second screening net 02, and the first screening net 12 and the second screening net 02 work at the same time; when the second screening net 02 is fully unfolded, the position of the adjusting net 24 below the first screening net 12 is adjusted by pushing the component 4 and the clamping component 3, so that the overlapping area of ​​the mesh of the first screening net 12 and the mesh of the adjusting net 24 becomes larger, and due to the action of the fixing component 5, the position of the adjusting net 24 below the second screening net 02 remains unchanged at this time, thereby achieving screening of the raw materials while cleaning the raw materials stuck on the first screening net 12.

[0042] Reference Figures 1 to 6 After the raw materials connected to the first screening net 12 are cleaned, the adjusting component 2 drives the adjusting net 24 to move in the opposite direction, and the push rod 44 moves from the second sliding part 463 to the first sliding part 461, and the adjusting net 24 is no longer clamped and fixed. At this time, the overlapping area of ​​the mesh of the first screening net 12 and the mesh of the adjusting net 24 returns to the initial size, and the control component 6 drives the adjusting plate 22 to move in the opposite direction, and the rotating roller 03 and the winding roller 23 both rotate in the opposite direction to wind up the unfolded adjusting net 24 and the second screening net 02, and then the raw materials will gradually fall onto the first screening net 12, and the coating will continue to be screened through the first screening net 12.

[0043] Reference Figures 2 to 6 When screening raw materials of different diameters, the clamping assembly 3 and the fixing assembly 5 are not working. The winding roller 23 and the unwinding roller 21 are directly rotated to adjust the position of the adjusting net 24 so that the mesh holes of the adjusting net 24 have the same overlapping area with the mesh holes of the first screening net 12 and the mesh holes of the second screening net 02, so that the second screening net 02 and the adjusting net 24 can continue to screen the raw materials.

[0044] Reference Figure 3 to Figure 4 The control assembly 6 includes a first control wheel 61 rotatably connected to the mounting frame 11, a first control rope 62 wound around the first control wheel 61, a second control wheel 63 rotatably connected to the mounting frame 11, and a second control rope 64 wound around the second control wheel 63, one end of the first control rope 62 away from the first control wheel 61 is fixed to the adjustment plate 22, one end of the second control rope 64 away from the second adjustment wheel is also fixed to the adjustment plate 22, and the first control rope 62 and the second control rope 64 are arranged on opposite sides of the adjustment plate 22.

[0045] Reference Figure 3 to Figure 4 A reset assembly 7 is provided on the second control wheel 63, and the reset assembly 7 is used to drive the second control wheel 63 to rotate in the opposite direction. The reset assembly 7 includes a reset shaft 71 fixed on the mounting frame 11 and a volute spring 72 fixed on the reset shaft 71, and the end of the volute spring 72 away from the reset shaft 71 is fixed on the second control wheel 63; in addition, a motor is provided on the mounting frame 11 for driving the first control wheel 61 to rotate. When the motor drives the first control wheel 61 to rotate, the first control rope 62 is wound around the first control wheel 61, and then the adjustment plate 22 is driven to move, and at the same time, the second control rope 64 is detached from the second control wheel 63, and at this time the volute spring 72 is in an energized state; when the motor drives the first control wheel 61 to rotate in the opposite direction, under the action of the volute spring 72, the second control wheel 63 is driven to rotate in the opposite direction, so that the unfolded second control rope 64 is wound around the second control wheel 63, and at this time the first control rope 62 is detached from the first control wheel 61. In this embodiment, two groups of control components 6 and reset components 7 are provided, and the two groups of control components 6 and reset components 7 are provided on opposite sides of the mounting frame 11, so that the movement of the adjustment plate 22 is more stable. At the same time, a controller is provided on the rack 01, and the multiple motors in this embodiment are connected to the controller, and the motors at different positions are controlled by the controller.

[0046] The implementation principle of a biomass energy raw material screening device in the embodiment of the present application is as follows: when the meshes on the first screening net 12 are stuck and the screening efficiency is affected, the control component 6 is used to drive the adjustment plate 22 to move, and the motor drives the winding roller 23 and the rotating roller 03 to rotate, so that the second screening net 02 and the adjustment net 24 on the winding roller 23 are unfolded. During the unfolding process, the raw material will fall onto the second screening net 02 through the discharge pipe, and the raw material will be screened by the first screening net 12 and the second screening net 02 at the same time. After the second screening net 02 is fully unfolded, the clamping component 3 is used to fix the adjustment net 24 through the pushing component 4, and the fixed adjustment net 24 is pushed to move in a direction away from the unwinding roller 21. The unwinding roller 21 also rotates under the action of the motor, and the overlapping area of ​​the meshes of the first screening net 12 and the meshes of the adjustment net 24 becomes larger. At this time, the raw material stuck in the first screening net 12 will fall under the action of gravity, so as to achieve the purpose of automatic cleaning, and also achieve the purpose of cleaning the raw material while screening.

[0047] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A biomass energy raw material screening device, comprising a frame and a screening assembly arranged on the frame, characterized in that: The screening assembly comprises a mounting frame arranged on a frame and a first screening net arranged on the mounting frame, the mounting frame is provided with an adjusting assembly for adjusting the mesh size of the first screening net; the adjusting assembly comprises an unwinding roller rotatably connected to the mounting frame, an adjusting plate sliding on the mounting frame, a winding roller rotatably connected to the adjusting plate, and an adjusting net fixed on the unwinding roller, the upper surface of the adjusting net abuts against the lower surface of the first screening net, one end of the adjusting net away from the unwinding roller is fixed on the winding roller, and at the same time one end of the adjusting net is wound around the winding roller, and the other end is wound around the unwinding roller, and the meshes on the adjusting net and the meshes on the first screening net are staggered. Position setting; the installation frame is provided with a clamping component for clamping and fixing the adjusting net, and the installation frame is provided with a pushing component, the pushing component is used to push the clamping component to clamp and fix the adjusting net, and is also used to drive the adjusting net to move; the installation frame is provided with a second screening net, one end of the second screening net is fixed to the installation frame, and the other end is fixed with a rotating roller, the rotating roller is rotatably connected to the adjusting plate, and the second screening net is wound around the rotating roller, and the surface of the second screening net abuts against the surface of the adjusting net between the fixing component and the winding roller; the installation frame is provided with a control component for driving the adjusting plate to move along the length direction of the first screening net.

2. A biomass energy raw material screening device according to claim 1, characterized in that: The clamping assembly includes a mounting plate sliding on a mounting frame, a first clamping plate fixed on the mounting plate, and a second clamping plate slidably connected to the mounting plate, wherein the second clamping plate is arranged above the first clamping plate, and the pushing assembly is used to push the second clamping plate to move in a direction close to the first clamping plate.

3. A biomass energy raw material screening device according to claim 1 or 2, characterized in that: The pushing assembly includes a pushing shaft rotatably connected to the mounting frame, a mounting rod fixed on the pushing shaft, a moving rod slidably connected to the mounting rod, and a pushing rod fixed on the second clamping plate, one end of the moving rod is hinged on the second clamping plate, a limiting plate is provided on the mounting frame, a pushing groove for clamping the pushing rod is provided on the limiting plate, the pushing groove includes a first sliding part, a connecting part and a second sliding part, the first sliding part and the second sliding part are arranged in parallel, and the first sliding part is arranged above the second sliding part, and the connecting part is used to connect the first sliding part and the second sliding part.

4. A biomass energy raw material screening device according to claim 3, characterized in that: A fixing assembly is provided on the installation frame, and when the position of the adjustment net below the first screening net is adjusted, the position of the adjustment net between the fixing assembly and the unwinding roller remains unchanged; the fixing assembly includes a first fixing plate and a second fixing plate fixed on the installation frame and a fixing rod fixed on the driving shaft, the adjustment net is arranged between the first fixing plate and the second fixing plate, the first fixing plate is set to an elastic rubber material, and the fixing rod abuts against the first fixing plate at one end away from the driving shaft.

5. The biomass energy raw material screening device according to claim 1, characterized in that: The control assembly includes a first control wheel rotatably connected to the mounting frame, a first control rope wound around the first control wheel, a second control wheel rotatably connected to the mounting frame, and a second control rope wound around the second control wheel, one end of the first control rope away from the first control wheel is fixed to the adjustment plate, one end of the second control rope away from the second adjustment wheel is also fixed to the adjustment plate, and the first control rope and the second control rope are arranged on opposite sides of the adjustment plate.

6. A biomass energy raw material screening device according to claim 5, characterized in that: The second control wheel is provided with a reset assembly, which is used to drive the second control wheel to rotate in the opposite direction. The reset assembly includes a reset shaft fixed on the mounting frame and a volute spring fixed on the reset shaft, and one end of the volute spring away from the reset shaft is fixed on the second control wheel.

7. The biomass energy raw material screening device according to claim 1, characterized in that: The mounting frame is provided with a mounting groove, the adjusting plate slides in the mounting groove, a corrugated plate is arranged in the mounting groove, the corrugated plate is arranged on both sides of the adjusting plate, one end of the corrugated plate is fixed on the inner wall of the mounting groove, and the other end is fixed on the adjusting plate, and the corrugated plate is used to seal the mounting groove.

Images