Biomass energy straw green treatment device and method

Abstract

The invention relates to the technical field of straw treatment, and provides a biomass energy straw green treatment device which comprises a shell, a feeding assembly is arranged on one side of the shell, one side of the feeding assembly is connected with a cut-off assembly, a drying area is arranged on the upper portion of the interior of the shell, the feeding assembly communicates with the drying area, and an impurity removal assembly and a drying assembly are arranged in the drying area; a temporary storage area is arranged in the drying area on one side of the impurity removal assembly, a blanking assembly is arranged at the bottom of the temporary storage area, a cutting assembly is arranged below the blanking assembly and arranged on the inner side of the shell, and an impurity area is arranged in the drying area at the bottom of the impurity removal assembly. An impurity outlet is formed in the shell on one side of the impurity area in a penetrating mode and externally communicates with an air outlet assembly. According to the device, straw used by biomass energy can be pretreated, impurities such as dust and stones on the surface of the straw can be removed, meanwhile, the straw is dried, the straw treatment efficiency and economical efficiency are improved, and the labor intensity is relieved.

Description

Technical Field

[0001] This invention relates to the field of straw treatment technology, specifically to a biomass energy straw green treatment device and method. Background Technology

[0002] Straw is the dried stem and leaf part remaining after crops have matured and been harvested. It is commonly found in cereal crops such as rice, wheat, and corn, and is mainly composed of cellulose, hemicellulose, and lignin. As an agricultural by-product, it can be processed into feed, organic fertilizer, or biomass fuel, and can also be used in handicrafts such as weaving and papermaking. Traditional incineration methods have been replaced by biomass straw treatment due to environmental pollution.

[0003] Biomass straw treatment is a green energy technology developed to promote the resource utilization of agricultural waste, against the backdrop of air pollution and resource waste caused by traditional straw burning. It mainly includes processes such as solidification molding (briquetting), pyrolysis gasification (producing combustible gas), liquefaction to produce bioethanol, and anaerobic fermentation (producing biogas or generating electricity). These technologies convert the organic components in straw into clean energy through physical, chemical, or biological transformation methods, reducing carbon emissions and PM2.5 pollution from open burning while supplementing renewable energy supply. It has now become a key link in the recycling of agricultural and forestry waste in achieving global carbon peaking and carbon neutrality.

[0004] Biomass energy requires straw to have low moisture content, generally below 20%, to reduce storage spoilage and improve thermal conversion efficiency; low impurity content (such as soil, sand, etc.) to avoid equipment wear or blockage; and the straw needs to be crushed or chopped (usually ≤5 cm in length) to meet the uniformity requirements of gasification, solidification, or fermentation processes. Currently, there is a lack of equipment that can solve the above requirements in one integrated way, resulting in low processing efficiency and poor economic performance.

[0005] Therefore, in order to address the above problems, a biomass straw green treatment device and method are proposed to solve these problems. Summary of the Invention

[0006] This invention addresses the shortcomings of existing technologies by developing a green treatment device and method for biomass energy straw. This invention can pre-treat straw used for biomass energy by removing dust, stones and other impurities from the surface of the straw, and simultaneously dry the straw, avoiding the need for preliminary drying steps, improving processing efficiency and reducing the labor intensity of workers.

[0007] To achieve the above objectives, the present invention employs the following technical solution: A biomass energy straw green treatment device includes an outer shell. A feeding component is installed on one side of the outer shell, and a cutting component is connected to one side of the feeding component. The cutting component is installed on the outer shell. A drying zone is installed inside the upper part of the outer shell. The feeding component is connected to the drying zone. A cleaning component and a drying component are installed in the drying zone. Both the cleaning component and the feeding component are inclined, and the feeding component is located obliquely above the cleaning component. The drying component is installed on the side wall of the outer shell of the drying zone and is connected to the outside of the outer shell and the drying zone. A temporary storage area is installed in the drying zone on one side of the cleaning component for temporarily storing the material transferred from the cleaning component. A dropping component is installed at the bottom of the temporary storage area, and a cutting component is installed below the dropping component. The cutting component is located inside the outer shell. A debris area is installed in the drying zone at the bottom of the cleaning component for temporarily storing debris falling from the cleaning component. A debris outlet is opened through the outer shell on one side of the debris area, and an air outlet component is connected to the outside of the debris outlet to draw air out of the drying zone.

[0008] Preferably, the impurity removal component includes a roller drum with a roller coaxially mounted on it. Both ends of the roller are rotatably connected to the outer casing, and the roller is inclined. One end of the roller passes through the outer casing and is connected to the output end of the impurity removal power component. The impurity removal power component is mounted on the outside of the outer casing via a support frame and is used to drive the roller to rotate, thereby driving the roller drum to rotate. A material inlet is opened at the upper end of the roller drum near the feeding component for feeding and discharging. Several impurity removal holes are opened on the side wall of the roller drum for separating impurities from straw. Several ventilation holes are opened circumferentially on the bottom plate at the lower end of the roller drum. A discharge plate is rotatably mounted on the roller inside the roller drum, and the discharge plate can slide along the length of the roller. The discharge plate is connected to a discharge power component, which is located outside the feeding component or outside the outer casing. The output end of the discharge power component passes through the side wall of the outer casing on one side of the drying zone, and the discharge power component is used to drive the discharge plate to slide along the length of the roller.

[0009] Preferably, the ventilation holes are inclined, and the inclination direction is all towards the roller. The radius of the main body of the discharge plate is the same as the radius of the inner side of the roller cylinder. The side of the discharge plate slides in contact with the inner wall of the roller cylinder, and the discharge plate can push out the straw in the roller cylinder.

[0010] Preferably, the feeding assembly includes a feeding cylinder and a feeding hopper. The feeding cylinder is a hollow structure that extends through the outer shell to connect the outer side of the outer shell with the drying zone inside the outer shell. The feeding cylinder is inclined and in the same direction as the roller. The feeding hopper is located at one end of the feeding cylinder outside the drying zone, and the other end of the feeding cylinder inside the drying zone extends into the feed inlet of the roller and is located on the upper side of the roller.

[0011] Preferably, the cutting assembly includes a stop plate and a cutter. The side wall of the feed cylinder near the feed hopper is connected to an upper sliding groove plate, and the side wall of the feed cylinder near the roller cylinder is connected to a lower sliding groove plate. The distance between the upper sliding groove plate and the lower sliding groove plate is less than the depth of the roller cylinder. The cutter is slidably arranged in the upper sliding groove plate, and the stop plate is slidably arranged in the lower sliding groove plate. The sliding direction of the cutter and the stop plate is perpendicular to the length direction of the feed cylinder. Both the cutter and the stop plate can be inserted into the feed cylinder and block the inner cavity of the feed cylinder. The ends of the cutter and the stop plate away from the feed cylinder are respectively connected to a cutting power component and a stop power component. Both the cutting power component and the stop power component are arranged on the outer shell.

[0012] Preferably, the drying assembly includes an upper drying rack, which is a hollow structure, arranged in an inverted U-shape on the upper side inside the drying zone and surrounding the outside of the roller drum. The main heating element is installed inside the upper drying rack. The bottom of the upper drying rack is not lower than the height of the roller. Several air outlets are connected to the side of the upper drying rack near the roller drum. The openings of the air outlets all face the impurity removal holes on the roller drum. The upper end of the upper drying rack is connected to an air inlet duct. The air inlet duct passes through the outer shell and connects to the outside of the drying zone. An upper screen is installed at the end of the air inlet duct away from the upper drying rack. Preferably, a rear drying rack is also included. The rear drying rack is a hollow structure and is located on the outer shell sidewall inside the drying zone, near the bottom plate of the roller drum. An auxiliary heating element is installed inside the rear drying rack. A rear air outlet is provided at one end of the rear drying rack near the roller drum. The rear air outlet is obliquely downward and located on the upper side of the roller. The opening of the rear air outlet faces the ventilation hole on the bottom plate of the roller drum. The other end of the rear drying rack passes through the outer shell sidewall and is connected to a rear fan. The rear fan is located on the outside of the outer shell and is used to blow air into the rear drying rack.

[0013] Preferably, the material feeding assembly includes a material feeding plate and a material feeding power component. The material feeding plate includes two pieces, which are symmetrically rotated and disposed inside the housing. When the surfaces of the two material feeding plates are on the same plane, their adjacent sides can contact each other, and the other sides of the material feeding plates are in contact with the inside of the housing. The bottom of each material feeding plate is rotatably connected to the output end of a different material feeding power component, and the other end of each material feeding power component is rotatably disposed inside the housing. The material feeding power component is used to support and drive the material feeding plate to rotate.

[0014] Preferably, the cutting assembly includes a receiving plate and a cutting roller. The receiving plate is slidably disposed inside the outer casing, with the sliding direction perpendicular and located directly below the symmetry line of the dropping plate. An upwardly protruding wedge is provided in the middle of the receiving plate for distributing material to both sides. Side baffles are symmetrically disposed on both sides of the receiving plate to prevent straw from falling from both sides. Several cutting grooves are evenly opened along the length direction on both sides of the receiving plate and the side baffles. The distance between the center lines of the cutting grooves is the length of the straw after cutting. The cutting rollers are symmetrically rotated and disposed inside the outer casing on both sides of the receiving plate, and the axes of the cutting rollers are parallel to the length direction of the receiving plate. One end of the cutting roller is connected to a cutting power component, which is disposed on the outer casing and is used to drive the cutting roller to rotate. Several cutting blades are circumferentially disposed on the cutting roller along the length direction. The position of the cutting blades corresponds to the center line of the cutting groove and can penetrate the cutting groove, and there is no contact between the cutting blades and the receiving plate.

[0015] Preferably, the air outlet assembly includes a dust collection box, one side of which is connected to the debris area via a debris outlet. A filter element is detachably installed inside the dust collection box, with its inlet connected to the debris outlet. An air outlet power unit is installed on the other side of the dust collection box, which is used to draw air out of the dust collection box and the drying area.

[0016] The present invention also provides a method for treating biomass straw, including the biomass straw treatment device described above, and further including the following steps: Step 1: Extend the output end of the stop power unit, insert the stop plate into the feed cylinder, retract the output end of the cutting power unit, and retract the cutter into the upper slide plate. Insert the bundle of straw into the feed cylinder through the feed hopper, ensuring that the bottom ends of the straws are in contact with the stop plate. Then extend the output end of the cutting power unit and cut the straw with the cutter. Step 2: Extend the output end of the discharge power unit and insert the discharge plate into the bottom of the roller drum, but do not contact the bottom plate of the roller drum. Start the impurity removal power unit to drive the roller drum to rotate as a whole. Step 3: Retract the output end of the gear shift power component. The straw falls into the roller drum under the action of gravity. Then, extend the output end of the gear shift power component again and retract the output end of the cutting power component. If there is still straw in the feed drum, it will naturally slide down to contact the gear shift plate, or straw can be added again. Wait for the gear shift plate to open again. The amount of straw added should be based on the fact that the space it occupies is less than half the volume of the inside of the roller drum. The fallen straw tumbles and rotates with the rotation of the roller drum so that the dust, stones and other debris on the straw fall out of the impurity removal hole of the roller drum. Step 4: First, start the exhaust fan, then start the rear fan, and heat the air entering the drying zone through the main heating element and the auxiliary heating element. After the hot air enters the drying zone, it dries the straw tumbling in the drum. At the same time, the negative pressure will carry away the dust that falls off the straw. Step 5: After drying and removing impurities, first stop the impurity removal power unit, stop the rotation of the roller drum, and use negative pressure air to press down the straw inside the roller drum to prevent the straw from being pushed out in a messy state and affecting subsequent processing steps; Step 6: Pause the exhaust fan and the rear fan, retract the output end of the discharge fan, push the dried and cleaned straw out of the roller drum to the temporary storage area through the discharge plate, and pile it on the discharge plate. Extend the output end of the discharge fan and send the discharge plate back to its original position. Step 7: First, start the cutting power unit, then retract the output end of the material dropping power unit to make the material dropping plate rotate. A gap is opened between the material dropping plates for the straw to fall. The size of the gap can be freely adjusted to control the falling speed of the straw. The straw falling from the material dropping plate is first divided by the wedge blocks to prevent the straw from accumulating in the middle of the receiving plate. The straw slides to both sides of the receiving plate and is cut by the cutting blade. Step 8: Remove the chopped straw fragments from the outer shell under the receiving plate, collect them, and prepare them for later use.

[0017] The effects described in the invention are merely those of the embodiments, and not all the effects of the invention. The above technical solution has the following advantages: This invention improves the efficiency and economy of straw processing for biomass energy by setting up a straw processing device that integrates drying, impurity removal and cutting, so that the processed straw can be used quickly and with high quality, making it more practical. This invention, by setting up a dust removal component in the drying zone, can collect dust and other impurities removed by the dust removal component in one direction through the negative pressure air from top to bottom in the drying zone, thus preventing dust from flying around in the drying zone and affecting the dust removal effect. At the same time, by tumbling the straw through the dust removal component, the high-temperature air can be fully contacted with the straw, avoiding the situation where some straw may not be dried properly, thereby improving the efficiency and quality of straw processing. This invention facilitates the pretreatment of excessively long straw by setting up a feeding component and a cutting component, avoiding the straw from adversely affecting the impurity removal effect of the impurity removal component. In addition, the baffle plate and cutter of the cutting component always keep their pair of feeding cylinders blocked to prevent air from entering the drying zone from the feeding cylinders, ensuring that all negative pressure air enters the drying zone through the drying component, thereby improving the practicality and processing quality of the device. This invention incorporates a feeding component and a cutting component. The feeding component can temporarily store the straw pushed out from the roller drum to prevent the straw from falling directly onto the cutting component. This avoids the straw tilting that may occur due to non-horizontal contact, which would result in longer cut segments and poorer processing quality. At the same time, the feeding component can control the falling rate of the straw, making the device more practical. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0019] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the overall structure of an embodiment of the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the internal structure of the outer shell in an embodiment of the present invention. Figure 1 ; Figure 4 This is a schematic diagram of the internal structure of the outer shell in an embodiment of the present invention. Figure 2 ; Figure 5 This is a partial structural schematic diagram of the feeding assembly, the impurity removal assembly, and the drying assembly according to an embodiment of the present invention; Figure 6 This is a partial cross-sectional schematic diagram of the feeding assembly, the impurity removal assembly, and the drying assembly according to an embodiment of the present invention; Figure 7 This is a partial structural schematic diagram of the cutting component according to an embodiment of the present invention.

[0020] In the diagram, 1. Outer shell; 2. Feeding assembly; 3. Cutting assembly; 4. Drying zone; 5. Impurity removal assembly; 6. Drying assembly; 7. Discharge assembly; 8. Cutting assembly; 9. Air outlet assembly; 10. Temporary storage area; 11. Impurity area; 12. Impurity outlet; 21. Feed cylinder; 22. Feed hopper; 31. Baffle plate; 32. Cutter; 33. Upper sliding groove plate; 34. Lower sliding groove plate; 35. Cutting power component; 36. Baffle power component; 51. Rolling cylinder; 52. Roller; 53. Impurity removal power component; 54. Support frame; 55. Impurity removal hole; 56. Ventilation hole; 57. Discharge plate; 58. Discharge power unit; 61. Upper drying rack; 62. Main heating element; 63. Air outlet; 64. Air inlet duct; 65. Upper screen; 66. Rear drying rack; 67. Auxiliary heating element; 68. Rear air outlet; 69. Rear fan; 71. Discharge plate; 72. Discharge power unit; 81. Receiving plate; 82. Cutting roller; 83. Side baffle; 84. Cutting groove; 85. Cutting power unit; 86. Cutting blade; 91. Dust collection box; 92. Air outlet power unit. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Example 1 like Figures 1-7 As shown, a biomass energy straw green treatment device includes a shell 1, a feeding component 2 disposed on one side of the top of the shell 1, a cutting component 3 connected to one side of the feeding component 2, the cutting component 3 being detachably disposed on the shell 1, a drying zone 4 disposed at the upper part of the interior of the shell 1, the feeding component 2 being connected to the drying zone 4, a cleaning component 5 and a drying component 6 disposed within the drying zone 4, the cleaning component 5 being connected to the feeding component 2, both the cleaning component 5 and the feeding component 2 being inclined, with the feeding component 2 located obliquely above the cleaning component 5, the cleaning component 5 being used to receive the straw material entering from the feeding component 2, and the drying component 6 being detachably disposed on the side wall of the shell 1 of the drying zone 4, and capable of connecting the outside of the shell 1 with the inside of the drying zone 4. A temporary storage area 10 is provided in the drying zone 4 on one side of the discharge port of the impurity removal component 5 to temporarily store the material transmitted from the impurity removal component 5. A material dropping component 7 is movably installed at the bottom of the temporary storage area 10, and a cutting component 8 is installed below the material dropping component 7. The cutting component 8 is located inside the outer shell 1. A discharge port is opened on the outer shell 1 on one side below the cutting component 8 to discharge the cut straw. A debris area 11 is provided in the drying zone 4 at the bottom of the impurity removal component 5 to temporarily store the debris falling from the impurity removal component 5. A debris outlet 12 is opened through the outer shell 1 on one side of the debris area 11. The debris outlet 12 is connected to the air outlet component 9. The air outlet component 9 is used to draw out the air in the drying zone 4 and make the drying zone 4 a negative pressure state.

[0023] In an optional embodiment, the impurity removal component 5 includes a roller drum 51, on which a roller 52 is coaxially mounted. The roller 52 passes through the roller drum 51, and both ends of the roller 52 are rotatably connected to the outer casing 1 via bearings. The roller 52 is inclined at an angle not exceeding 45°. One end of the roller 52 passes through the outer casing 1 and is connected to the output end of the impurity removal power component 53 via a reducer. The impurity removal power component 53 is a motor, mounted on the outside of the outer casing 1 via a support frame 54, and is used to drive the roller 52 to rotate, thereby driving the roller drum 51 to rotate. The roller drum 51 has a feed inlet near the upper end of the feeding component 2 for feeding and discharging. Several impurity removal holes 55 are evenly distributed on the side wall of the roller drum 51 for removing impurities. To separate the straw from the feed and facilitate air circulation, several ventilation holes 56 are opened circumferentially on the bottom plate at the lower end of the roller drum 51, allowing the straw to have more full contact with the air. A discharge plate 57 is rotatably mounted on the roller 52 inside the roller drum 51. The discharge plate 57 is located on the lower side of the roller drum 51 and can slide along the length of the roller 52. The discharge plate 57 is connected to the output end of the discharge power component 58. The discharge power component 58 is a cylinder and is located outside the feed assembly 2 or outside the outer shell 1. The output end of the discharge power component 58 passes through and slides to the side wall of the outer shell 1 on one side of the drying zone 4. The discharge power component 58 is used to drive the discharge plate 57 to slide along the length of the roller 52 to push out the straw in the roller drum 51.

[0024] In an optional embodiment, the ventilation holes 56 are inclined, and the inclination direction is all towards the upper end of the roller 52. When viewed along the axial direction of the roller 52, the openings at both ends of the ventilation holes 56 do not overlap, so as to avoid the straw possibly penetrating the ventilation holes 56 directly. The main body of the discharge plate 57 is set to a semi-circular shape, and the radius is the same as the inner radius of the roller cylinder 51. The side of the discharge plate 57 slides in contact with the inner wall of the roller cylinder 51. The discharge plate 57 can push out the straw in the roller cylinder 51. Preferably, the main body of the discharge plate 57 is a semi-circular shape with a larger arc, so that the pushing effect is better.

[0025] In an optional embodiment, the feeding assembly 2 includes a feeding cylinder 21 and a feeding hopper 22. The feeding cylinder 21 is a hollow square cylinder that penetrates the outer shell 1 to connect the outer side of the outer shell 1 with the drying zone 4 inside the outer shell 1. The feeding cylinder 21 is inclined, and the inclination direction is consistent with the inclination direction of the roller 52. The feeding hopper 22 is set at one end of the feeding cylinder 21 located outside the drying zone 4 to facilitate quick feeding by the staff. The end of the feeding cylinder 21 located inside the drying zone 4 extends into the material inlet of the roller cylinder 51 and is located on the upper side of the roller 52.

[0026] In an optional embodiment, an auxiliary support assembly is also included, comprising an inner support roller and an outer support roller, both rotatably mounted on different supports mounted on the feed cylinder 21. The axis of the inner support roller is parallel to the axis of the rolling cylinder 51 and is used to contact and roll the upper side of the inner wall of the feed inlet of the rolling cylinder 51. The axis of the outer support roller is perpendicular to the axis of the rolling cylinder 51 and is used to contact and roll the upper side of the outer wall of the feed inlet of the rolling cylinder 51, thereby improving the stability of the device.

[0027] In an optional embodiment, the cutting component 3 includes a stop plate 31 and a cutter 32. The side wall of the feed cylinder 21 near the feed hopper 22 is connected to an upper sliding groove plate 33, and the side wall of the feed cylinder 21 near the roller cylinder 51 is connected to a lower sliding groove plate 34. The distance between the upper sliding groove plate 33 and the lower sliding groove plate 34 is less than the depth of the roller cylinder 51. The cutter 32 is slidably disposed within the upper sliding groove plate 33, and the stop plate 31 is slidably disposed within the lower sliding groove plate 34. The sliding directions of the cutter 32 and the stop plate 31 are the same. Both are perpendicular to the length direction of the feed cylinder 21. Both the cutter 32 and the baffle plate 31 can be inserted into the feed cylinder 21 and block the inner cavity of the feed cylinder 21. The cutter 32 and the baffle plate 31 need to block the inner cavity of the feed cylinder 21 crosswise or simultaneously, so that air cannot flow freely through the feed cylinder 21. The ends of the cutter 32 and the baffle plate 31 away from the feed cylinder 21 are respectively connected to the cutting power component 35 and the baffle power component 36. Both the cutting power component 35 and the baffle power component 36 are set on the outer shell 1.

[0028] In an optional embodiment, the blade of the cutter 32 is inclined, with the lower end of the blade close to the cutting power member 35 and the upper end far away from the cutting power member 35. At this time, a blade-removing groove is opened on the side wall of the feed cylinder 21 on the other side of the cutter 32, so that the cutter 32 can completely penetrate the feed cylinder 21, thereby improving the efficiency and quality of straw cutting.

[0029] In an optional embodiment, the drying assembly 6 includes an upper drying rack 61. The upper drying rack 61 is a hollow structure, arranged in an inverted U-shape on the upper side inside the drying zone 4, and surrounding the outside of the roller drum 51. A main heating element 62 is disposed inside the upper drying rack 61. The main heating element 62 can cover a horizontal surface inside the upper drying rack 61, so that the air can be heated evenly. The main heating element 62 can be any component capable of heating air, such as an electric heating wire, a hot water pipe, etc. The bottom of the upper drying rack 61 is set at a height of not... The upper drying rack 61 is positioned below the roller 52 to ensure that air always flows from the top to the bottom of the roller drum 51. Several air outlets 63 are provided on the side of the upper drying rack 61 near the roller drum 51, with the openings of the air outlets 63 all facing the impurity removal holes 55 on the roller drum 51. The upper end of the upper drying rack 61 is connected to the air inlet duct 64, which passes through the outer shell 1 and connects to the outside of the drying area 4. An upper screen 65 is provided at the end of the air inlet duct 64 away from the upper drying rack 61 to prevent external debris from entering and improve safety.

[0030] In an optional embodiment, a rear drying rack 66 is also included. The rear drying rack 66 is a hollow structure and is detachably installed on the side wall of the outer shell 1 inside the drying zone 4, near the bottom plate of the roller drum 51. An auxiliary heating element 67 is installed inside the rear drying rack 66. The auxiliary heating element 67 uses an electric heating wire and has the same function as the main heating element 62. A rear air outlet 68 is provided at one end of the rear drying rack 66 near the roller drum 51. The rear air outlet 68 is obliquely downward and located on the upper side of the roller 52. The opening of the rear air outlet 68 faces the ventilation hole 56 on the bottom plate of the roller drum 51. The other end of the rear drying rack 66 passes through the side wall of the outer shell 1 and is connected to a rear fan 69. The rear fan 69 is located on the outside of the outer shell 1 and is used to blow air into the rear drying rack 66. A rear screen is provided on the outside of the rear fan 69 to prevent external debris from entering.

[0031] In an optional embodiment, the material dropping assembly 7 includes a material dropping plate 71 and a material dropping power component 72. The material dropping power component 72 is a cylinder. The material dropping plate 71 includes two pieces, which are symmetrically rotated and disposed inside the outer shell 1. When the surfaces of the two material dropping plates 71 are on the same plane, their adjacent sides can contact each other, and the other sides of the material dropping plates 71 are in contact with the inner side of the outer shell 1. Preferably, a rubber layer is provided on the side of the material dropping plate 71 to improve the sealing performance. The bottom of each material dropping plate 71 is rotatably connected to the output end of a different material dropping power component 72. Preferably, each material dropping plate 71 is connected to two material dropping power components 72 for better stability. The other end of each material dropping power component 72 is rotatably disposed inside the outer shell 1. The material dropping power component 72 is used to support and drive the material dropping plate 71 to rotate.

[0032] In an optional embodiment, the cutting assembly 8 includes a receiving plate 81 and a cutting roller 82. The receiving plate 81 is slidably disposed inside the outer casing 1, with the sliding direction perpendicular and located directly below the symmetry line of the dropping plate 71. An upwardly protruding wedge is provided in the middle of the receiving plate 81 for distributing material to both sides. Side baffles 83 are symmetrically arranged on both sides of the receiving plate 81 to prevent straw from falling from both sides. A plurality of cutting grooves 84 are evenly opened along the length direction on both sides of the receiving plate 81 and on the side baffles 83. The distance between the center lines of the cutting grooves 84 is the length of the straw after cutting. The cutting roller 82 is symmetrically rotated and disposed inside the outer casing 1 on both sides of the receiving plate 81, and the axis of the cutting roller 82 is parallel to the length direction of the receiving plate 81. At the same time, the height of the axis of the cutting roller 82 is higher than the height of the surface of the receiving plate 81. To facilitate downward cutting, one end of the cutting roller 82 is connected to the cutting power component 85, which is a motor mounted on the outer casing 1. The cutting power component 85 drives the cutting roller 82 to rotate. Several cutting blades 86 are arranged circumferentially along the length of the cutting roller 82. The position of the cutting blades 86 corresponds to the center line of the cutting groove 84 and can penetrate the cutting groove 84. The cutting blades 86 do not contact the receiving plate 81 to avoid the danger of blade collision. Preferably, the two ends of the receiving plate 81 are connected to the outer casing 1 by tension springs. During cutting, the receiving plate 71 can be pressed down by the pressure of the cutting blades 86 and spring back to its original position after cutting, producing an up-and-down vibration effect. This not only shakes the cut straw off but also speeds up the material distribution rate of the wedge block, improving the practicality of the device.

[0033] In an optional embodiment, several inspection ports are provided through the outer shell 1 and can be detachably closed by corresponding cover plates to facilitate maintenance of the device; the inspection port on one side of the temporary storage area 10 also serves as an observation port, and its corresponding cover plate is made of transparent material and is designed to be easy to open and close, so as to facilitate timely observation and detection of the state of the straw in the temporary storage area 10; preferably, the inspection ports and their corresponding cover plates around the drying area 4 are all sealed and connected by rubber strips to prevent external air from seeping in and improve the drying effect.

[0034] In an optional embodiment, the air outlet assembly 9 includes a dust collection box 91. One side of the dust collection box 91 is detachably disposed outside the debris outlet 12, which connects to the debris area 11. Preferably, a filter element is detachably disposed inside the dust collection box 91. The filter element can be a commercially available filter cartridge or filter bag, which is economical. The inlet of the filter element is connected to the debris outlet 12 and is used to collect and filter dust and other debris. An air outlet power component 92 is disposed on the other side of the dust collection box 91. The air outlet power component 92 is a fan and is used to draw out the air from the dust collection box 91 and the drying zone 4, so that the drying zone 4 is in a negative pressure state, and the air only enters the drying zone 4 through the drying assembly 6.

[0035] Example 2 A method for treating biomass straw includes the biomass straw treatment device described above, and further includes the following steps: Step 1: Extend the output end of the stop power component 36, insert the stop plate 31 into the feed cylinder 21, retract the output end of the cutting power component 35, retract the cutter 32 into the upper slide plate 33, insert the bundled straw into the feed cylinder 21 through the feed hopper 22, and make the bottom end of the straw contact the stop plate 31. Then extend the output end of the cutting power component 35 and cut the straw with the cutter 32. Step 2: Extend the output end of the discharge power unit 58, insert the discharge plate 57 into the bottom of the roller drum 51, but do not contact the bottom plate of the roller drum 51, start the impurity removal power unit 53, and drive the roller drum 51 to rotate as a whole. Step 3: Retract the output end of the gear shift power component 36. The straw falls into the roller drum 51 under the action of gravity. Then, extend the output end of the gear shift power component 36 again and retract the output end of the cutting power component 35. If there is still straw in the feed cylinder 21, it will naturally slide down to contact the gear shift plate 31, or add straw again and wait for the gear shift plate 31 to open next time. The amount of straw added should be based on the space occupied by it being less than half the volume of the inside of the roller drum 51. The fallen straw tumbles and rotates with the rotation of the roller drum 51 so that the dust, stones and other debris on the straw fall out of the impurity removal hole 55 of the roller drum 51. Step 4: First, start the air outlet power unit 92, then start the rear fan 69, and heat the air entering the drying zone 4 through the main heating unit 62 and the auxiliary heating unit 67. After the hot air enters the drying zone 4, it dries the straw tumbling in the roller drum 51. At the same time, the negative pressure will carry away the dust falling from the straw to prevent dust from flying. The rear air outlet 68 blows air into the ventilation hole 56 to prevent a small amount of straw from penetrating the ventilation hole 56. Step 5: After drying and removing impurities, first pause the impurity removal power unit 53, stop the rotation of the roller drum 51, and use negative pressure air to press down the straw in the roller drum 51 to avoid the straw being in a messy state when it is pushed out, which would affect subsequent processing steps; Step 6: Pause the air outlet power unit 92 and the rear fan 69, retract the output end of the discharge power unit 58, and push the dried and impurity-removed straw out of the roller drum 51 to the temporary storage area 10 through the discharge plate 57, and pile it on the drop plate 71. The temporary support of the drop plate 71 prevents the straw from falling directly and causing uneven cutting lengths due to unstable cutting level. Extend the output end of the discharge power unit 58 and send the discharge plate 57 back to its original position. Step 7: First, start the cutting power component 85, then retract the output end of the material dropping power component 72, causing the material dropping plate 71 to rotate. A gap is opened between the material dropping plates 71 for the straw to fall. The size of the gap can be freely adjusted to control the rate at which the straw falls, avoid the accumulation of straw during cutting, and extend the service life of the cutting blade 86. The straw falling from the material dropping plate 71 is first divided by the wedge block to prevent the straw from accumulating in the middle of the receiving plate 81. The straw slides to both sides of the receiving plate 81 and is cut by the cutting blade 86. Step 8: Remove the cut straw fragments from the outer shell 1 below the receiving plate 81, collect them, and prepare them for subsequent use.

[0036] All aspects not detailed in this invention are conventional technical means known to those skilled in the art.

[0037] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0038] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more unless otherwise explicitly specified.

[0039] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

[0040] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A biomass energy straw green treatment device, comprising a shell (1), wherein a feeding assembly (2) is provided on one side of the shell (1), characterized in that, A cutting-off component (3) is connected to one side of the feeding component (2). The cutting-off component (3) is set on the outer shell (1). A drying zone (4) is set above the inside of the outer shell (1). The feeding component (2) is connected to the drying zone (4). A cleaning component (5) and a drying component (6) are set in the drying zone (4). Both the cleaning component (5) and the feeding component (2) are set at an angle, and the feeding component (2) is located obliquely above the cleaning component (5). The drying component (6) is set on the side wall of the outer shell (1) of the drying zone (4) and connects the outside of the outer shell (1) with the drying zone (4). A drying zone (4) is set on one side of the cleaning component (5). A temporary storage area (10) is provided for temporarily storing materials that are transferred from the impurity removal component (5). A material dropping component (7) is provided at the bottom of the temporary storage area (10). A cutting component (8) is provided below the material dropping component (7). The cutting component (8) is located inside the outer shell (1). A debris area (11) is provided in the drying area (4) at the bottom of the impurity removal component (5) for temporarily storing debris that falls from the impurity removal component (5). A debris outlet (12) is opened through the outer shell (1) on one side of the debris area (11). An air outlet component (9) is connected to the outside of the debris outlet (12). The air outlet component (9) is used to draw out the air in the drying area (4).

2. The biomass energy straw green treatment device according to claim 1, characterized in that: The impurity removal assembly (5) includes a roller cylinder (51), on which a roller (52) is coaxially mounted. Both ends of the roller (52) are rotatably connected to the outer casing (1), and the roller (52) is inclined. One end of the roller (52) passes through the outer casing (1) and is connected to the output end of the impurity removal power unit (53). The impurity removal power unit (53) is mounted on the outside of the outer casing (1) via a support frame (54) to drive the roller (52) to rotate, thereby driving the roller cylinder (51) to rotate. The roller cylinder (51) has a material inlet at its upper end near the feeding assembly (2) for feeding and discharging. Several impurity removal holes (55) are opened on the side wall of the roller cylinder (51). Used for separating impurities from straw, the bottom plate at the lower end of the roller drum (51) has several ventilation holes (56) circumferentially opened. A discharge plate (57) is rotatably installed on the roller (52) inside the roller drum (51), and the discharge plate (57) can slide along the length direction of the roller (52). The discharge plate (57) is connected to the discharge power component (58). The discharge power component (58) is set outside the feeding component (2) or outside the outer shell (1), and the output end of the discharge power component (58) passes through the side wall of the outer shell (1) on one side of the drying zone (4). The discharge power component (58) is used to drive the discharge plate (57) to slide along the length direction of the roller (52).

3. The biomass energy straw green treatment device according to claim 2, characterized in that: The ventilation holes (56) are inclined and all the inclination direction is towards the roller (52). The radius of the main body of the discharge plate (57) is the same as the radius of the inner side of the roller cylinder (51). The side of the discharge plate (57) slides in contact with the inner wall of the roller cylinder (51). The discharge plate (57) can push out the straw in the roller cylinder (51).

4. The biomass energy straw green treatment device according to claim 2, characterized in that: The feeding assembly (2) includes a feeding cylinder (21) and a feeding hopper (22). The feeding cylinder (21) is configured as a hollow structure and penetrates the outer shell (1) to connect the outside of the outer shell (1) with the drying zone (4) inside the outer shell (1). The feeding cylinder (21) is inclined and is in the same direction as the roller (52). The feeding hopper (22) is set at one end of the feeding cylinder (21) located outside the drying zone (4). The end of the feeding cylinder (21) located inside the drying zone (4) extends into the feed inlet of the roller cylinder (51) and is located on the upper side of the roller (52).

5. The biomass energy straw green treatment device according to claim 4, characterized in that: The cutting assembly (3) includes a stop plate (31) and a cutter (32). The side wall of the feed cylinder (21) near the feed hopper (22) is connected to the upper sliding groove plate (33), and the side wall of the feed cylinder (21) near the roller cylinder (51) is connected to the lower sliding groove plate (34). The distance between the upper sliding groove plate (33) and the lower sliding groove plate (34) is less than the depth of the roller cylinder (51). The cutter (32) is slidably arranged in the upper sliding groove plate (33), and the stop plate (31) is slidably arranged in the lower sliding groove plate (34). The sliding direction of the cutter (32) and the stop plate (31) is perpendicular to the length direction of the feed cylinder (21). The cutter (32) and the stop plate (31) can be inserted into the feed cylinder (21) and block the inner cavity of the feed cylinder (21). The ends of the cutter (32) and the stop plate (31) away from the feed cylinder (21) are respectively connected to the cutting power component (35) and the stop power component (36). The cutting power component (35) and the stop power component (36) are both set on the outer shell (1).

6. The biomass energy straw green treatment device according to claim 5, characterized in that: The drying assembly (6) includes an upper drying rack (61). The upper drying rack (61) is a hollow structure, arranged in an inverted U-shape on the upper side inside the drying zone (4) and surrounding the outside of the roller drum (51). The main heating element (62) is arranged inside the upper drying rack (61). The bottom of the upper drying rack (61) is not lower than the height of the roller (52). Several air outlets (63) are connected on the side of the upper drying rack (61) close to the roller drum (51). The openings of the air outlets (63) all face the impurity removal holes (55) on the roller drum (51). The upper end of the upper drying rack (61) is connected to the air inlet duct (64). The air inlet duct (64) passes through the outer shell (1) and connects to the outside of the drying zone (4). An upper screen (65) is arranged at the end of the air inlet duct (64) away from the upper drying rack (61). It also includes a rear drying rack (66), which is a hollow structure and is located on the side wall of the outer shell (1) inside the drying area (4) near the bottom plate of the roller drum (51). A secondary heating element (67) is installed inside the rear drying rack (66). A rear air outlet (68) is provided at one end of the rear drying rack (66) near the roller drum (51). The rear air outlet (68) is obliquely downward and located on the upper side of the roller (52). The opening of the rear air outlet (68) faces the ventilation hole (56) on the bottom plate of the roller drum (51). The other end of the rear drying rack (66) passes through the side wall of the outer shell (1) and is connected to the rear fan (69). The rear fan (69) is located outside the outer shell (1) and is used to blow air into the rear drying rack (66).

7. The biomass energy straw green treatment device according to claim 6, characterized in that: The material feeding assembly (7) includes a material feeding plate (71) and a material feeding power component (72). The material feeding plate (71) includes two pieces, which are symmetrically and rotatably arranged inside the outer shell (1). When the surfaces of the two material feeding plates (71) are on the same plane, their adjacent sides can contact each other, and the other sides of the material feeding plate (71) are in contact with the inner side of the outer shell (1). The bottom of the material feeding plate (71) is rotatably connected to the output end of different material feeding power components (72). The other end of the material feeding power component (72) is rotatably arranged inside the outer shell (1). The material feeding power component (72) is used to support and drive the material feeding plate (71) to rotate.

8. The biomass energy straw green treatment device according to claim 7, characterized in that: The cutting assembly (8) includes a receiving plate (81) and a cutting roller (82). The receiving plate (81) is slidably disposed inside the outer casing (1), with the sliding direction perpendicular and located directly below the symmetrical line of the dropping plate (71). A wedge protruding upward is provided in the middle of the receiving plate (81) for distributing material to both sides. Side baffles (83) are symmetrically provided on both sides of the receiving plate (81) to prevent straw from falling from both sides. Several cutting grooves (84) are evenly opened along the length direction on both sides of the receiving plate (81) and the side baffles (83). The distance between the center lines of the cutting grooves (84) is the length of the straw after cutting. The cutting roller (82) The cutting rollers (82) are symmetrically rotated and arranged inside the outer shell (1) on both sides of the receiving plate (81), and the axis of the cutting rollers (82) is parallel to the length direction of the receiving plate (81). One end of the cutting roller (82) is connected to the cutting power component (85), which is set on the outer shell (1) to drive the cutting rollers (82) to rotate. Several cutting blades (86) are arranged circumferentially along the length direction on the cutting rollers (82). The position of the cutting blades (86) corresponds to the center line of the cutting groove (84) and can penetrate the cutting groove (84). There is no contact between the cutting blades (86) and the receiving plate (81).

9. A biomass energy straw green treatment device according to claim 8, characterized in that: The air outlet assembly (9) includes a dust collection box (91). One side of the dust collection box (91) is connected to the debris area (11) through a debris outlet (12). A filter element is detachably installed inside the dust collection box (91). The inlet of the filter element is connected to the debris outlet (12). An air outlet power unit (92) is installed on the other side of the dust collection box (91). The air outlet power unit (92) is used to draw out the air from the dust collection box (91) and the drying area (4).

10. A method for treating biomass straw, comprising the biomass straw treatment device as described in claim 9, characterized in that, It also includes the following steps: Step 1: Extend the output end of the stop power unit (36), insert the stop plate (31) into the feed cylinder (21), retract the output end of the cutting power unit (35), retract the cutter (32) into the upper slide plate (33), insert the bundle of straw into the feed cylinder (21) through the feed hopper (22), and make the bottom end of the straw contact the stop plate (31), then extend the output end of the cutting power unit (35) and cut the straw with the cutter (32); Step 2: Extend the output end of the discharge power unit (58), insert the discharge plate (57) into the bottom of the roller drum (51), but do not contact the bottom plate of the roller drum (51), start the impurity removal power unit (53), and drive the roller drum (51) to rotate as a whole; Step 3: Retract the output end of the gear shift power component (36), and the straw falls into the roller drum (51) under the action of gravity. Then, extend the output end of the gear shift power component (36) again and retract the output end of the cutting power component (35). If there is still straw in the feed cylinder (21), it will naturally slide down to contact the gear plate (31), or add straw again and wait for the gear plate (31) to open next time. The amount of straw added is based on the fact that the space it occupies is less than half the volume of the inside of the roller drum (51). The fallen straw rolls and rotates with the rotation of the roller drum (51) so that the dust, stones and debris on the straw fall out of the impurity removal hole (55) of the roller drum (51). Step 4: First start the air outlet power unit (92), then start the rear fan (69), and heat the air entering the drying zone (4) through the main heating element (62) and the auxiliary heating element (67). After the hot air enters the drying zone (4), it dries the straw tumbling in the roller drum (51). At the same time, the negative pressure will carry away the dust falling from the straw. Step 5: After drying and removing impurities, first pause the impurity removal power unit (53), stop the rotation of the roller drum (51), and use negative pressure air to press down the straw in the roller drum (51) to avoid the straw being in a messy state when it is pushed out, which will affect the subsequent processing steps. Step 6: Pause the air outlet power unit (92) and the rear fan (69), retract the output end of the discharge power unit (58), push the dried and cleaned straw out of the roller drum (51) to the temporary storage area (10) through the discharge plate (57), and pile it on the drop plate (71). Extend the output end of the discharge power unit (58) and send the discharge plate (57) back to its original position. Step 7: First, start the cutting power unit (85), then retract the output end of the material dropping power unit (72) to make the material dropping plate (71) rotate. A gap is opened between the material dropping plates (71) for the straw to fall. The size of the gap can be freely adjusted to control the rate at which the straw falls. The straw falling from the material dropping plate (71) is first divided by the wedge block to avoid the straw from accumulating in the middle of the receiving plate (81). The straw slides to both sides of the receiving plate (81) and is cut by the cutting blade (86). Step 8: Take the cut straw fragments out of the outer shell (1) below the receiving plate (81), put them in a collection, and prepare them for subsequent use.

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