Bamboo chip crushing processing system and processing method thereof

Abstract

According to the bamboo chip crushing processing system and the processing method thereof, the crushing module, the separation module and the bamboo powder collecting module are sequentially communicated through the conveying module in a negative-pressure air conveying mode, and materials are hammered, crushed and ground into filaments in a grading mode through the crushing module to obtain a mixed material of bamboo fibers and bamboo powder; the beating rotating speed of the smashing module and the negative pressure value of the conveying module are adjusted in a matched mode to control the thickness of the discharged materials after treatment, the separation module at the rear end of the smashing module rotates to conduct stirring scattering and centrifugal separation on the mixed materials, and light bamboo powder is sucked out through negative pressure under cooperation of the conveying module and intercepted and collected through a filter bag; and the bamboo fibers fall and are collected under the dead weight, so that the fine processing of the bamboo chips is realized, bamboo fiber and bamboo powder products are obtained, the processing efficiency and the product quality are high, and the technical problems existing in the prior art are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of bamboo processing, and in particular to a bamboo chip crushing and processing system and a processing method thereof. Background Art

[0003] Chinese Patent CN201820968826.0 discloses an environment-friendly rubbing and fiber separating machine, which includes a main motor and a coupling connected to each other, and also includes a fiber separating mechanism connected to the coupling; the fiber separating mechanism includes a fiber separating device and a dust removing device cooperating with the fiber separating device, and the fiber separating device includes a feeder and a fiber separator; in the present utility model, a dust cleaning component capable of cleaning dust is arranged in the fiber separator, so that dust and wood chips generated during the processing can be actively discharged from the equipment, thereby reducing the influence of dust and wood chips on mechanical equipment, reducing the loss of the equipment, prolonging the working life, and being able to centrally collect the generated wood chips and waste residues through a collecting device, without causing pollution due to random dumping.

[0004] However, the processing method in the existing technical solution is rough. The bamboo chips are processed in the fiber separating mechanism of the cutter roller structure, and the rubbing effect is poor, and the quality of the obtained bamboo fibers is low; in addition, during the processing of bamboo chips, bamboo fibers and bamboo powder are usually processed and obtained simultaneously, but there is a lack of systematic and integrated equipment for processing and separating bamboo fibers and bamboo powder in the existing technology. Summary of the Invention

[0005] The purpose of the present invention is to provide a bamboo chip crushing and processing system and a processing method thereof for the deficiencies of the existing technology. The conveying module in the form of negative pressure air delivery is sequentially connected to a crushing module, a separating module and a bamboo powder collecting module. The crushing module performs hierarchical hammering and crushing and rubbing into filaments on the material to obtain a mixture of bamboo fibers and bamboo powder, and controls the fineness of the discharged material after processing by coordinating and adjusting the hammering speed of the crushing module and the magnitude of the negative pressure value of the conveying module. The separating module at the rear end of the crushing module rotates to disperse and centrifugally separate the mixture, and under the cooperation of the conveying module, the light bamboo powder is sucked out under negative pressure and intercepted and collected by a filter bag, while the bamboo fibers sink and are collected by their own weight, so as to realize the fine processing of bamboo chips and obtain bamboo fiber and bamboo powder products, with high processing efficiency and product quality, and solve the technical problems existing in the existing technology.

[0006] To achieve the above object, the present invention provides a bamboo chip crushing and processing system, comprising: a crushing module, a separation module and a bamboo powder collection module connected in sequence. Bamboo chip materials are pounded and shredded in the crushing module, and the obtained bamboo fibers and bamboo powder flow into the separation module for separation, and the bamboo fibers are collected, and the bamboo powder flows into the bamboo powder collection module for collection; and a conveying module, which serially connects the crushing module, the separation module and the bamboo powder collection module and conveys the materials into each module for processing by means of negative pressure air transportation.

[0007] Preferably, the conveying module includes: an induced draft fan; and a conveying pipe, which is communicatively arranged between the crushing module, the separation module and the bamboo powder collection module, and the output terminal is connected to the induced draft fan.

[0008] Preferably, the crushing module includes: a crushing barrel, which is fixedly installed on the frame and has a horizontal axial direction; and a pounding mechanism, which is rotatably installed in the crushing barrel and pounds and breaks the bamboo chips; the rotation speed of the pounding mechanism and the magnitude of the negative pressure value of the conveying module are coordinated to control the fineness of the discharged materials after being processed by the crushing module.

[0009] Preferably, the axial direction of the crushing barrel is horizontally arranged, and a feed inlet is provided at the top far from the conveying module, and a slag discharge port is provided at the bottom close to the conveying module.

[0010] Preferably, the crushing module further includes: a wire-drawing mechanism, which is fixedly installed on the crushing barrel and cooperates with the pounding mechanism to rub the pounded materials; and a first filtering mechanism, the pounding mechanism matches the axial extension of the crushing barrel, the first filtering mechanism is located in the middle section of the axial direction of the pounding mechanism and divides the inner cavity of the crushing barrel into a front hammer piece area and a rear rubbing area, the wire-drawing mechanism is installed in the rubbing area, and the materials completed in pounding in the hammer piece area are filtered by the first filtering mechanism and then conveyed to the rubbing area; and a second filtering mechanism, which is located in the rubbing area and is a cylindrical structure arranged along the inner circle of the axial direction of the crushing barrel, and divides the rubbing area into an outer ring-shaped working area and an inner ring-shaped discharge area, the conveying module is hermetically communicated with the discharge area, and the materials completed in rubbing in the working area are filtered by the second filtering mechanism and then conveyed into the discharge area to perform grading processing on the bamboo chips.

[0011] Preferably, the separation module comprises: a separation barrel, which is fixedly mounted on a frame and arranged vertically axially, and the feeding end and the discharging end of the conveying module relative to the separation module are both connected to the top of the separation barrel; a separation mechanism, which is rotatably mounted in the separation barrel; and a fiber discharging mechanism, which is sealed and connected to the bottom of the separation barrel; after the material is input into the separation barrel from the feeding end of the conveying module, it is supported, stirred and separated by the separation mechanism, and the bamboo powder with small mass is output upward through the discharging end of the conveying module, and the bamboo fiber with large mass falls by its own gravity and is output through the fiber discharging mechanism.

[0012] Preferably, the separation barrel is configured as a conical structure that is small at the top and large at the bottom.

[0013] Preferably, the bamboo powder collection module comprises: a separation box, which is fixedly mounted on a frame, and the conveying module is sealed and connected to the separation box at both the feed end and the discharge end of the separation box; a filter bag group, which is arranged in the separation box, and the airflow carrying the bamboo powder passes through the filter bag group to intercept and collect the bamboo powder; and a powder and material discharge mechanism, which is sealed and connected to the bottom of the separation box to output the collected bamboo powder.

[0014] Preferably, the fiber discharging mechanism and the powder discharging mechanism are both configured as a Jiaolong structure.

[0015] Preferably, the hammer mechanism comprises: a rotating shaft portion, which is rotatably arranged; a rod body, which is distributed in a plurality of groups around the rotating shaft portion and rotates synchronously with the rotating shaft portion; and hammers, wherein a plurality of hammers are axially distributed and installed on the rod body.

[0016] Preferably, the rotating shaft portion includes: a rotating shaft A, one end of which extends out of the crushing barrel and is connected to the driving portion so as to be driven to rotate by the driving portion; and a mounting plate, which is located in the crushing barrel and is coaxially mounted on both ends of the rotating shaft A, and both ends of the rod body are fixed to the mounting plate.

[0017] Preferably, the thread rolling mechanism comprises: a rolling sheet, a plurality of the rolling sheets are distributed in a ring on the inner wall of the crushing barrel, and the rolling sheets are staggered with the hammer sheets, so that when the hammer sheet rotates to be opposite to the rolling sheet, the material falling between the working surfaces of the two sheets is rubbed and ground; the working surfaces of the hammer sheet and the rolling sheet are both provided with step-shaped protrusions, and the hammer sheet is pierced with air flow holes.

[0018] Preferably, both the first filtering mechanism and the second filtering mechanism are coaxially installed on the flail mechanism and rotate synchronously with the flail mechanism; a first filtering port is formed on the first filtering mechanism for the material that has been pounded in the hammer area to pass through to the rubbing area, and a second filtering port is formed on the second filtering mechanism for the material that has been rubbed in the working area to pass through to the discharging area.

[0019] Preferably, the first filtering mechanism is coaxially and fixedly installed on the rotating shaft A of the flail mechanism; both ends of the second filtering mechanism are correspondingly installed on the first filtering mechanism and the mounting plate.

[0020] Preferably, the first filtering mechanism includes: a mounting seat coaxially installed on the rotating shaft A; and first filtering bars, the first filtering bars are circumferentially and spacedly distributed on the mounting seat and extend along the radial direction of the pulverizing barrel, and the first filtering port is formed between adjacent first filtering bars; and a first feeding part, the first feeding part is circumferentially and spacedly distributed on the mounting seat and extends along the radial direction of the pulverizing barrel, and the side facing the rubbing area is set as an arc surface with a reduced width, so as to form a relative positive pressure difference in the front and back in the pulverizing barrel when the first filtering mechanism rotates.

[0021] Preferably, the first filtering bars and the first feeding part are alternately and evenly distributed, and the first filtering port is formed between adjacent first filtering bars and the first feeding part.

[0022] Preferably, the second filtering mechanism includes: second filtering bars, several second filtering bars are spaced and annularly arranged on the outer circle of the rotating shaft A, the second filtering port is formed between adjacent second filtering bars, a ring-shaped working area is formed between the second filtering bars and the pulverizing barrel, and a discharging area is formed between the second filtering bars and the rotating shaft A; and a second feeding part, the second feeding part is circumferentially and spacedly distributed on the rotating shaft A and extends along the radial direction of the pulverizing barrel, and the side facing the conveying module is set as an arc surface with a reduced width, so as to form a relative positive pressure difference in the front and back in the pulverizing barrel when the second filtering mechanism rotates.

[0023] Preferably, both the first filtering port and the second filtering port are set as strip-shaped structures.

[0024] Preferably, a stirring rod is also distributed and installed on the outer circle of the second filtering mechanism to disperse the material in the working area.

[0025] Preferably, the separation mechanism includes: a rotating shaft B driven by a driving part to rotate; a plurality of separation bars horizontally distributed and mounted on the rotating shaft B to support and stir the materials falling in the separation barrel during rotation; and a plurality of retaining bars vertically arranged in a ring on the outer circumference of the rotating shaft B. A ring-shaped fiber channel is formed between the retaining bars and the separation barrel. The bamboo fibers in the mixed material are centrifugally thrown out and blocked by the retaining bars in the fiber channel and output downward. A ring-shaped powder channel is formed between the rotating shaft B and the retaining bars. The bamboo powder in the mixed material is output upward in the powder channel under the action of negative pressure.

[0026] Preferably, adjacent two retaining bars are spaced apart for the flow of air and powder; the separation bars extend out from the spaces between the retaining bars and their lengths are adapted to the inner diameter of the separation barrel.

[0027] Preferably, one side of the separation bar facing the top of the separation barrel is set as an arc surface with a reduced width, so as to form an upper and lower relative negative pressure difference in the separation barrel when the separation mechanism rotates.

[0028] Preferably, mounting plates are arranged at the upper and lower ends of the rotating shaft B, and the two ends of the retaining bars are correspondingly mounted on the mounting plates.

[0029] The present invention also provides a method for processing bamboo chips by crushing, including the following steps: Step 1, bamboo chip beating: Input the bamboo chips to be processed into the chip-beating area of the crushing barrel. The chip-beating mechanism rotates to beat and break the bamboo chips to obtain scattered bamboo materials. Step 2, rubbing into filaments: The scattered bamboo materials obtained in Step 1 are pneumatically conveyed into the rubbing area of the crushing barrel. During the rotation of the chip-beating mechanism, it is misaligned and cooperates with the wire-rubbing mechanism to extrude and rub the scattered bamboo materials falling between their working surfaces to obtain a mixed material of bamboo fibers and bamboo powder. Step 3, product separation and bamboo fiber collection: The mixed material obtained in Step 2 is pneumatically conveyed into the separation barrel. The separation mechanism rotates to support, stir and separate the mixed material. The bamboo powder with a small mass is pneumatically conveyed and output upward, and the bamboo fibers with a large mass fall by their own gravity and are output through the fiber discharging mechanism. Step 4, bamboo powder collection: The bamboo powder pneumatically conveyed and output in Step 3 enters the separation box. The airflow carrying the bamboo powder passes through the filter bag group, and the bamboo powder is intercepted for collection and output by the powder discharging mechanism.

[0030] The beneficial effects of the present invention are as follows: (1) In the present invention, the conveying module in the negative pressure air conveying mode is sequentially connected to the crushing module, the separation module, and the bamboo powder collection module. The crushing module performs hierarchical hammer crushing and rubbing into filaments on the material to obtain a mixture of bamboo fibers and bamboo powder, and controls the fineness of the discharged material after processing by coordinating and adjusting the hammering speed of the crushing module and the magnitude of the negative pressure value of the conveying module. The separation module at the rear end of the crushing module rotates to disperse and centrifugally separate the mixture, and under the cooperation of the conveying module, the light bamboo powder is sucked out under negative pressure and intercepted and collected by the filter bag, while the bamboo fibers sink and are collected by their own weight, thereby realizing the fine processing of bamboo slices and obtaining bamboo fiber and bamboo powder products, with high processing efficiency and product quality; (2) In the present invention, a hammering mechanism is rotatably arranged in the crushing barrel. The rotation of the hammering mechanism stirs and collides with the bamboo slices in the barrel to fully break the bamboo slices, and divides the crushing barrel into a hammering area and a rubbing area. A wire rubbing mechanism is arranged in the rubbing area, which cooperates with the rotating hammering mechanism to further rub the hammered bamboo material into filaments, thereby realizing the hierarchical fine processing of bamboo materials and improving the processing efficiency and product quality; (3) In the present invention, a multi-stage filtering mechanism is arranged in the crushing barrel, and the material is output by means of negative pressure adsorption. This method can ensure that only the light bamboo materials with sufficient filament separation can be smoothly output, and the remaining bamboo materials continue to be filament separated in the barrel until the sufficient filament separation effect is achieved. The multi-stage filtering mechanism has both the functions of material conveying and screening, realizing that the material is screened and output in time after meeting the filament separation requirements, and ensuring the filament separation effect and the discharging effect; (4) In the present invention, a separation mechanism is rotatably arranged in the separation barrel. The separation bars support and stir the mixture, increasing the residence time of the mixture and fully dispersing the fibers and powders in the mixture. Cooperating with the conveying mechanism to extract air at the top enables the light powders to be concentrated and output upward. The baffle bars block the fibers under the rotational centrifugal action on the outer ring of the separation barrel to concentrate and quickly fall, thereby realizing the rapid separation and zoned output of fibers and powders, preventing mutual mixing, and improving the separation effect. Description of the Drawings

[0031] Figure 1 is the overall structural schematic diagram of the present invention; Figure 2 is the structural schematic of the crushing module in the present invention Figure 1 (excluding the crushing barrel); Figure 3 is the structural schematic of the crushing module in the present invention Figure 2 ; Figure 4 is the partial front view of the crushing module in the present invention; Figure 5 is the schematic diagram of the cooperation structure of the hammering piece and the rubbing piece in the present invention; Figure 6Schematic diagram of the first filtering mechanism and the second filtering mechanism in the present invention; Figure 7 Partial structural schematic diagram of the crushing module in the present invention; Figure 8 Schematic diagram of the first feeding part and the second feeding part in the present invention; Figure 9 Schematic diagram of the separation module in the present invention (excluding the separation barrel); Figure 10 Partial structural schematic diagram of the separation mechanism in the present invention; Figure 11 Schematic diagram of the bamboo powder collection module in the present invention; Figure 12 Process flow chart of the present invention. Detailed implementation manners

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0033] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality" means two or more unless otherwise specifically defined.

[0034] Embodiment 1 As Figure 1As shown in the figure, a bamboo chip crushing and processing system includes: a crushing module 100, a separation module 200, and a bamboo powder collection module 300 connected in sequence. Bamboo chip materials are pounded and shredded in the crushing module 100, and the obtained bamboo fibers and bamboo powder flow into the separation module 200 for separation, and the bamboo fibers are collected. The bamboo powder flows into the bamboo powder collection module 300 for collection; and a conveying module 400, which serially connects the crushing module 100, the separation module 200, and the bamboo powder collection module 300 and conveys the materials into each module for processing by means of negative pressure air conveyance.

[0035] Preferably, the conveying module 400 includes: an induced draft fan 91; and a conveying pipe 92, which is communicatively arranged between the crushing module 100, the separation module 200, and the bamboo powder collection module 300, and its output terminal is connected to the induced draft fan 91.

[0036] Preferably, as Figure 1-2 shown in the figure, the crushing module 100 includes: a crushing barrel 1, which is fixedly installed on the frame and has a horizontal axial direction; and a pounding mechanism 2, which is rotatably installed in the crushing barrel 1 and pounds and breaks the bamboo chips; the rotation speed of the pounding mechanism 2 and the magnitude of the negative pressure value of the conveying module 400 are adjusted in coordination to control the fineness of the discharged material after being processed by the crushing module 100.

[0037] In the crushing module 100 of this embodiment, the fineness of the processed product can be adjusted according to production needs. Specifically, when the rotation speed of the pounding mechanism 2 is increased and the negative pressure value of the conveying module 400 is decreased, the discharged material is fine; when the rotation speed of the pounding mechanism 2 is decreased and the negative pressure value of the conveying module 400 is increased, the discharged material is coarse, and the fineness of the discharged powder is consistent.

[0038] Preferably, as Figure 1 shown in the figure, the crushing barrel 1 has a horizontal axial direction, an inlet 11 is opened at the top away from the conveying module 400, and a slag discharge port 12 is opened at the bottom close to the conveying module 400.

[0039] Preferably, as Figure 2 shown in the figure, the crushing module 100 further includes: a wire drawing mechanism 3, which is fixedly installed on the crushing barrel 1 and cooperates with the pounding mechanism 2 to rub the pounded material.

[0040] In this embodiment, by rotatably arranging the pounding mechanism 2 in the crushing barrel 1, the pounding mechanism 2 rotates to stir and collide with the bamboo material in the barrel, realizing the full crushing of the bamboo material. By cooperatively arranging the fixedly installed wire drawing mechanism 3 with the rotatably arranged pounding mechanism 2, the pounding mechanism 2 is misaligned and cooperates with the wire drawing mechanism 3 during rotation, thereby rubbing the bamboo material.

[0041] Preferably, the crushing module 100 further includes: a first filtering mechanism 4. The flail mechanism 2 extends axially in line with the crushing barrel 1. The first filtering mechanism 4 is located in the middle section of the flail mechanism 2 axially and divides the inner cavity of the crushing barrel 1 into a front hammer blade area 101 and a rear rubbing area 102. The wire rubbing mechanism 3 is installed in the rubbing area 102. The materials completed being hammered in the hammer blade area 101 are filtered by the first filtering mechanism 4 and then transported to the rubbing area 102. And a second filtering mechanism 5. The second filtering mechanism 5 is located in the rubbing area 102 and is a cylindrical structure arranged along the inner circle axially of the crushing barrel 1. It divides the rubbing area 102 into an outer ring-shaped working area 103 and an inner circle discharging area 104. The conveying module 400 is hermetically connected to the discharging area 104. The materials completed being rubbed in the working area 103 are filtered by the second filtering mechanism 5 and then transported into the discharging area 104.

[0042] In this embodiment, by dividing the crushing barrel 1 into a hammer blade area 101 and a wire rubbing area 102, and arranging the wire rubbing mechanism 3 in the wire rubbing area 102, the bamboo materials are first hammered and broken in the hammer blade area 101, and then enter the wire rubbing area 102 for wire rubbing. The hammering and wire rubbing are integrated and work in different areas, so as to realize the hierarchical and refined processing of bamboo, and improve the processing efficiency and product quality.

[0043] In cooperation with this, by hermetically connecting the conveying module 400 to one axial side of the crushing barrel 1, the conveying module 400 outputs the materials by means of negative pressure adsorption, and arranging the first filtering mechanism 4 in the middle section of the flail mechanism 2 axially, thus dividing the crushing barrel 1 into a hammer blade area 101 and a wire rubbing area 102. A second filtering mechanism 5 is arranged in the wire rubbing area 102. The second filtering mechanism 5 divides the wire rubbing area 102 into a working area 103 and a discharging area 104. The conveying module 400 is connected to the discharging area 104. By controlling the magnitude of the negative pressure of the conveying module 400, the size of the first filtering openings 40 on the first filtering mechanism 4, and the size of the second filtering openings 50 on the second filtering mechanism 5, the qualified bamboo materials after hammering are output to the wire rubbing area 102 through the first filtering openings 40 to complete the first-level output of the bamboo materials, and the qualified bamboo materials after wire rubbing are output to the discharging area through the second filtering openings 50 to complete the second-level output of the bamboo materials.

[0044] The first filtering mechanism 4 and the second filtering mechanism 5 in this embodiment have both the functions of material conveying and screening, realizing that the materials are screened and output in time after meeting the wire splitting requirements, ensuring the wire splitting effect and the discharging effect, and having a clever structure.

[0045] Preferably, as Figure 2As shown, the flaking mechanism 2 includes: a rotating shaft portion 21, the rotating shaft portion 21 is rotatably arranged; a rod body 22, several groups of the rod body 22 are distributed around the rotating shaft portion 21 and rotate synchronously with the rotating shaft portion 21; and flaking pieces 23, several of the flaking pieces 23 are axially installed on the rod body.

[0046] Preferably, the rotating shaft portion 21 includes: a rotating shaft A211, one end of the rotating shaft A211 extends out of the crushing barrel 1 and is connected to the driving portion 20 to be driven by the driving portion 20 to rotate; and a mounting plate 212, the mounting plate 212 is located inside the crushing barrel 1 and is coaxially installed at both ends of the rotating shaft A211, and both ends of the rod body 22 are fixed to the mounting plate 212.

[0047] As a preferred embodiment, four groups of the rod body 22 are distributed around the rotating shaft A211, fully occupying the bin space, increasing the contact probability with bamboo materials, and thus improving the flaking efficiency.

[0048] Preferably, as Figure 3-4 shown, the wire drawing mechanism 3 includes: wire drawing pieces 31, several of the wire drawing pieces 31 are annularly arranged on the inner wall of the crushing barrel 1, and the wire drawing pieces 31 are arranged in a staggered manner with the flaking pieces 23, so that when the flaking pieces 23 rotate to face the wire drawing pieces 31, the materials falling between the working surfaces of the two are rubbed; as Figure 5 shown, stepped convex portions 32 are arranged on the working surfaces of the flaking pieces 23 and the wire drawing pieces 31, and air flow holes 220 are provided through the flaking pieces 23.

[0049] In this embodiment, by providing the air flow holes 220 in the flaking pieces 23, the air flow in the bin can be promoted, so that the bamboo materials can be fully and tightly attached to the flaking pieces 23, increasing the contact time, fully performing flaking and wire drawing, avoiding being knocked open by the flaking pieces 23, and a wire drawing piece 31 is arranged on each side of the front and rear working surfaces of the flaking pieces 23 to improve the wire drawing efficiency; by providing the convex portions 32, the surface roughness is increased, the contact time and contact area are increased, the flaking and wire drawing force is enhanced, and the thickness increase is combined with the stepped shape to achieve an extrusion effect and enhance the flaking and wire drawing effect.

[0050] Preferably, as Figure 6 shown, the first filtering mechanism 4 and the second filtering mechanism 5 are both coaxially installed on the flaking mechanism 2 and rotate synchronously with the flaking mechanism 2; a first filtering port 40 is provided on the first filtering mechanism 4 for the materials that have been flaked in the hammering area 101 to pass through to the rubbing area 102, and a second filtering port 50 is provided on the second filtering mechanism 5 for the materials that have been wire drawn in the working area 103 to pass through to the discharging area 104.

[0051] In this embodiment, in cooperation with the hierarchical processing procedure, a conveying module 400 is sealingly connected to one axial side of the pulverizing barrel 1. The conveying module 400 outputs the material after fiber separation in the pulverizing barrel 1 by means of negative pressure adsorption. This method can ensure that only the light bamboo material with sufficient fiber separation can be smoothly output, and the remaining bamboo material continues to be fiber-separated in the barrel until the sufficient fiber separation effect is achieved.

[0052] Preferably, the first filtering mechanism 4 is coaxially and fixedly installed on the rotating shaft A211 of the hammering mechanism 2; both ends of the second filtering mechanism 5 are correspondingly installed on the first filtering mechanism 4 and the mounting plate 212.

[0053] Preferably, as Figure 7-8 shown, the first filtering mechanism 4 includes: a mounting seat 41, the mounting seat 41 is coaxially installed on the rotating shaft A211; and first filtering strips 42, the first filtering strips 42 are circumferentially and spacedly distributed on the mounting seat 41 and extend along the radial direction of the pulverizing barrel 1, and a first filtering port 40 is formed between adjacent first filtering strips 42; and a first feeding part 43, the first feeding part 43 is circumferentially and spacedly distributed on the mounting seat 41 and extends along the radial direction of the pulverizing barrel 1, and the side thereof facing the rubbing area 102 is set as an arc surface 420 with a reduced width, so as to form a relative positive pressure difference in the front and back in the pulverizing barrel 1 when the first filtering mechanism 4 rotates.

[0054] Preferably, the first filtering strips 42 and the first feeding part 43 are arranged in a staggered and evenly distributed manner, and a first filtering port 40 is formed between adjacent first filtering strips 42 and the first feeding part 43.

[0055] Preferably, the second filtering mechanism 5 includes: second filtering strips 51, several second filtering strips 51 are spacedly arranged in a ring around the outer circle of the rotating shaft A211, a second filtering port 50 is formed between adjacent second filtering strips 51, a ring-shaped working area 103 is formed between the second filtering strips 51 and the pulverizing barrel 1, and a discharging area 104 is formed between the second filtering strips 51 and the rotating shaft A211; and a second feeding part 52, the second feeding part 52 is circumferentially and spacedly distributed on the rotating shaft A211 and extends along the radial direction of the pulverizing barrel 1, and the side thereof facing the conveying module 400 is set as an arc surface 420 with a reduced width, so as to form a relative positive pressure difference in the front and back in the pulverizing barrel 1 when the second filtering mechanism 5 rotates.

[0056] In this embodiment, the first filter strips 42 and the second filter strips 51 are arranged at intervals on the first filtering mechanism 4 and the second filtering mechanism 5, and the first filtering openings 40 and the second filtering openings 50 are correspondingly left. The qualified bamboo materials after beating are output through the first filtering openings 40 into the wire rubbing space 102 for rubbing. The large-volume bamboo materials with unqualified components are retained in the beating space 101 by the first filter strips 42 and continue to be beaten. The bamboo materials with qualified wire rubbing in the working area 103 are output through the second filtering openings 50 to the discharging area 104, and then are output and collected through the conveying pipe 92. The large-volume bamboo materials with unqualified wire rubbing are blocked by the second filtering openings 50 and retained in the working area 103 for rubbing, so as to realize the classified output of materials by cooperating with the classified processing work.

[0057] In addition, it is worth noting that by arranging the first feeding part 43 and the second feeding part 52 on the first filtering mechanism 4 and the second filtering mechanism 5, and arranging arc surfaces 420 with reduced widths on the first feeding part 43 and the second feeding part 52, according to the principle of fluid mechanics, the air pressure in the wire rubbing space 102 in the barrel can be made lower than the air pressure in the beating space 101 when the beating mechanism 2 rotates, so as to form a relative negative pressure difference front and back. The air pressure in the discharging area 104 is lower than the air pressure in the working area 103, so as to form a relative negative pressure difference inside and outside, prompting the bamboo materials with sufficient classification and wire separation to be adsorbed and output, and discharging through the mechanical structure auxiliary output module 400, improving the output efficiency and being more energy-saving.

[0058] As a preferred embodiment, four first feeding parts 43 and four second feeding parts 52 are respectively arranged in a circumferential array.

[0059] Preferably, both the first filtering openings 40 and the second filtering openings 50 are arranged in a strip-shaped structure.

[0060] As a preference, as Figure 8 shown, stirring rods 33 are also distributed and installed on the outer ring of the second filtering mechanism 5 to disperse the materials in the working area 103.

[0061] In this embodiment, the stirring rods 33 disperse the bamboo materials in the working area 103, stir and fluff them, so that the bamboo materials can be rubbed sufficiently, prevent the bamboo materials from blocking the second filtering openings 50, and promote the qualified bamboo materials after wire rubbing to fall into the discharging area 104.

[0062] Embodiment 2 For the same or corresponding components in this embodiment and the above embodiment, the corresponding reference numerals in the above embodiment are adopted. For the sake of simplicity, only the differences from the above embodiment will be described below. The difference between this embodiment and the above embodiment is that: As a preference, as Figure 1As shown, the separation module 200 includes: a separation barrel 61, which is fixedly installed on the frame and has a vertical axis. The feeding end and the discharging end of the conveying module 400 communicate with the top of the separation barrel 61 relative to the separation module 200; as Figure 9 shown, a separation mechanism 7, which is rotatably installed in the separation barrel 61; and a fiber discharging mechanism 62, which is hermetically communicated with the bottom of the separation barrel 61. After the material is input into the separation barrel 61 from the feeding end of the conveying module 400, it is supported, agitated and separated by the separation mechanism 7. The bamboo powder with a small mass is output upward through the discharging end of the conveying module 400, and the bamboo fiber with a large mass falls under its own gravity and is output through the fiber discharging mechanism 62.

[0063] Preferably, as Figure 9-10 shown, the separation mechanism 7 includes: a rotating shaft B71, which is driven by a driving part to rotate; separation bars 72, a plurality of the separation bars 72 are horizontally distributed and installed on the rotating shaft B71 to support and agitate the material falling in the separation barrel 61 during rotation; and retaining bars 73, a plurality of the retaining bars 73 are vertically arranged in a ring around the outer circle of the rotating shaft B71. A ring-shaped fiber channel is formed between the retaining bars 73 and the separation barrel 61. The bamboo fibers in the mixed material are centrifugally thrown out and blocked by the retaining bars 73 in the fiber channel and output downward. A ring-shaped powder channel is formed between the rotating shaft B71 and the retaining bars 73. The bamboo powder in the mixed material is output upward in the powder channel under the action of negative pressure.

[0064] In this embodiment, by rotatably arranging the separation mechanism 7 in the separation barrel 61, the separation bars 72 are distributed on the rotating shaft B71 of the separation mechanism 7. The separation bars 72 support and agitate the mixed material, improving the residence time of the mixed material and fully dispersing the powder adhered to the fibers, thereby improving the separation efficiency. And it cooperates with the output module 400 to extract air at the top to make the light-weight powder concentrate and output upward.

[0065] During operation, the separation mechanism 7 rotates, so that the bamboo fibers with a large mass are thrown to the outer circle of the separation barrel 61 under the action of centrifugal force, and the retaining bars 73 block the fibers under the rotating centrifugal action in the fiber channel on the outer circle of the separation barrel 61 and concentrate and quickly fall, while the light-weight powder smoothly outputs upward from the middle powder channel under the action of negative pressure, thus realizing the rapid separation and partition output of the fiber and the powder, preventing mutual mixing, and having high separation efficiency and good separation effect.

[0066] Preferably, adjacent retaining bars 73 are spaced apart to allow the flow of air and powder; the separation bars 72 extend from the spaces between the retaining bars 73 and their lengths are adapted to the inner diameter of the separation barrel 61 to ensure the supporting and agitating effects.

[0067] Preferably, one side of the separation strip 72 facing the top of the separation barrel 61 is provided with an arc surface 420 with a reduced width, so as to form an upper and lower relative negative pressure difference in the separation barrel 61 when the separation mechanism 7 rotates.

[0068] In this embodiment, by providing the arc surface 420 with a reduced width on the separation strip 72, according to the principle of fluid mechanics, the air pressure in the upper part of the separation barrel 61 can be made lower than that in the lower part when the separation mechanism 7 rotates, so as to form an upper and lower relative negative pressure difference, prompting the powder to be adsorbed upward, improving the powder output efficiency and being more energy-saving at the same time.

[0069] Preferably, mounting plates are provided at the upper and lower ends of the rotating shaft B71, and both ends of the blocking strip 73 are correspondingly mounted on the mounting plates.

[0070] Preferably, the separation barrel 61 is arranged in a conical structure with a smaller upper part and a larger lower part, so that the bamboo fibers are not easily blocked when falling, the discharging is fast, and since the space below the separation barrel 61 is larger, the gas flow rate below the separation barrel 61 is slow when the output module 400 sucks air, which helps the bamboo fibers to sink and improves the separation efficiency.

[0071] Embodiment III In this embodiment, the same or corresponding components as those in the above embodiments are provided with the corresponding reference numerals in the above embodiments. For the sake of simplicity, only the differences from the above embodiments will be described below. The differences between this embodiment and the above embodiments are as follows: Preferably, as Figure 11 shown, the bamboo powder collection module 300 includes: a separation box 81, the separation box 81 is fixedly installed on the frame, and both the feeding end and the discharging end of the conveying module 400 are hermetically communicated with the separation box 81 relative to the separation box 81; a filter bag group, the filter bag group is arranged in the separation box 81, and the air flow carrying the bamboo powder passes through the filter bag group to intercept and collect the bamboo powder; and a powder discharging mechanism 82, the powder discharging mechanism 82 is hermetically communicated with the bottom of the separation box 81 to output the collected bamboo powder.

[0072] In this embodiment, when collecting bamboo powder, the negative pressure air extraction of the conveying module 400 can be switched to positive pressure blowing, so as to shake off the bamboo powder on the filter bag group by means of pulse.

[0073] Preferably, both the fiber discharging mechanism 62 and the powder discharging mechanism 82 are arranged in a screw structure.

[0074] Embodiment IV A bamboo chip crushing and processing method, as Figure 12 shown, includes the following steps: Step 1, Bamboo Sheet Beating: Input the bamboo sheets to be processed into the sheet-beating area 101 of the crushing barrel 1. The sheet-beating mechanism 2 rotates to beat and break the bamboo sheets to obtain scattered bamboo materials; Step 2, Rubbing into Fibers: The scattered bamboo materials obtained in Step 1 are pneumatically conveyed into the rubbing area 102 of the crushing barrel 1. During the rotation of the sheet-beating mechanism 2, it is misaligned and cooperates with the fiber-rubbing mechanism 3 to extrude and rub the scattered bamboo materials falling between the working surfaces of the two, obtaining a mixture of bamboo fibers and bamboo powder; In Steps 1 to 2, a negative pressure pneumatic conveying is carried out through the conveying module 400 at the axial rear side of the crushing barrel 1 far from the bamboo material inlet. The crushing barrel 1 is divided axially in the middle into a sheet-beating area 101 at the axial front side and a rubbing area 102 at the axial rear side. The rubbing area 102 is further divided into a working area 103 on the outer circumference and a discharging area 104 on the inner circumference. The conveying module 400 is further connected to the discharging area 104. Under the action of negative pressure pneumatic conveying, the qualified bamboo materials beaten in the sheet-beating area 101 are filtered by the first filtering mechanism 4 and pneumatically conveyed to the working area 103 for rubbing. The qualified bamboo materials after rubbing are filtered by the second filtering mechanism 5 and pneumatically conveyed to the discharging area 104, and then pneumatically conveyed and output to the next module; During the beating and rubbing process, adjust the negative pressure values of the beating and rubbing rotation and the pneumatic conveying to meet the requirements of different product fineness. When the rotation speed of the sheet-beating mechanism 2 is increased and the negative pressure value of the conveying module 400 is decreased, the discharged material is fine; when the rotation speed of the sheet-beating mechanism 2 is decreased and the negative pressure value of the conveying module 400 is increased, the discharged material is coarse; Step 3, Product Separation and Bamboo Fiber Collection: The mixture obtained in Step 2 is pneumatically conveyed into the separation barrel 61. The separation mechanism 7 rotates to support, agitate, and separate the mixture. The bamboo powder with small mass is pneumatically conveyed upward and output, and the bamboo fibers with large mass fall under the action of their own gravity and are output through the fiber discharging mechanism 62; In Step 3, the mixture obtained in Step 2 is input from the top of the separation barrel 61. During the falling process of the mixture, the separation mechanism 7 rotates, and through the horizontally distributed separation bars 72, the mixture is supported and agitated, the mixture is dispersed, the bamboo powder adsorbed on the bamboo fibers is shaken off, and under the action of centrifugal force, the bamboo fibers with large mass are thrown towards the barrel wall of the separation barrel 61 and blocked by the blocking bars 73. Then the bamboo fibers fall under the action of their own gravity and are output through the fiber discharging mechanism 62, while the bamboo powder with light mass is more concentrated in the powder channel on the inner circle of the separation barrel 61 and is pneumatically conveyed and output from the top of the separation barrel 61 to the next module under concentrated negative pressure; Step 4, Bamboo Powder Collection: The bamboo powder pneumatically conveyed and output in Step 3 enters the separation box 81. The airflow carrying the bamboo powder passes through the filter bag group, and the bamboo powder is intercepted for collection and output by the powder discharging mechanism 82; In step four, the bamboo powder product is wrapped in the pneumatic conveying airflow, causing the airflow to pass through the filter bag group. The bamboo powder is intercepted and adsorbed on the surface of the filter bag group, so as to centrally collect the bamboo powder. Then, the bamboo powder is shaken off by the positive pressure pulse method and then output through the powder discharging mechanism 82.

[0075] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A bamboo chip crushing and processing system, characterized in that, Including: A crushing module (100), a separation module (200), and a bamboo powder collection module (300) connected in sequence. Bamboo sheet materials are pounded and shredded in the crushing module (100), and the obtained bamboo fibers and bamboo powder flow into the separation module (200) for separation, and the bamboo fibers are collected. The bamboo powder flows into the bamboo powder collection module (300) for collection; and A conveying module (400). The conveying module (400) connects the crushing module (100), the separation module (200), and the bamboo powder collection module (300) in series and conveys materials into each module for processing by means of negative pressure pneumatic conveying.

2. The bamboo chip crushing and processing system according to claim 1, wherein The crushing module (100) includes: A crushing barrel (1), the crushing barrel (1) is horizontally arranged axially; and A pounding mechanism (2), the pounding mechanism (2) is rotatably installed in the crushing barrel (1), and it pounds and breaks the bamboo sheets; The rotational speed of the pounding mechanism (2) and the magnitude of the negative pressure value of the conveying module (400) are coordinated and adjusted to control the fineness of the material discharged after being processed by the crushing module (100).

3. A bamboo chip crushing and processing system according to claim 2, characterized in that, The crushing module (100) further includes: A shredding mechanism (3), the shredding mechanism (3) is installed on the crushing barrel (1), and it cooperates with the pounding mechanism (2) to rub and grind the pounded material; and A first filtering mechanism (4), the pounding mechanism (2) matches the axial extension of the crushing barrel (1), the first filtering mechanism (4) is located in the middle section of the axial direction of the pounding mechanism (2) and divides the inner cavity of the crushing barrel (1) into a hammer blade area (101) and a rubbing area (102). The shredding mechanism (3) is installed in the rubbing area (102). The material completed in the pounding in the hammer blade area (101) is filtered by the first filtering mechanism (4) and then transported to the rubbing area (102); and A second filtering mechanism (5), the second filtering mechanism (5) is located in the rubbing area (102) and is a cylindrical structure arranged along the inner circle in the axial direction of the crushing barrel (1). It divides the rubbing area (102) into an outer ring-shaped working area (103) and an inner ring-shaped discharge area (104). The conveying module (400) is hermetically connected to the discharge area (104). The material completed in the rubbing in the working area (103) is filtered by the second filtering mechanism (5) and then transported into the discharge area (104).

4. A bamboo chip crushing and processing system according to any one of claims 1-3, characterized in that, The separation module (200) includes: A separation barrel (61), the separation barrel (61) is vertically arranged axially. The conveying module (400) is connected to the top of the separation barrel (61) both at the feeding end and the discharging end relative to the separation module (200); A separation mechanism (7), the separation mechanism (7) is rotatably installed in the separation barrel (61); and A fiber discharging mechanism (62), the fiber discharging mechanism (62) is connected to the bottom of the separation barrel (61); After the material is input into the separation barrel (61) from the feeding end of the conveying module (400), it is supported, agitated and separated by the separation mechanism (7). The bamboo powder with small mass is output upward from the discharging end of the conveying module (400), and the bamboo fiber with large mass falls under the action of its own gravity and is output through the fiber discharging mechanism (62).

5. A bamboo chip crushing and processing system according to any one of claims 1-3, characterized in that, The bamboo powder collection module (300) includes: A separation box (81), both the feeding end and the discharging end of the conveying module (400) are communicated with the separation box (81) relative to the separation box (81); A filter bag group, the filter bag group is arranged in the separation box (81), and the airflow carrying the bamboo powder passes through the filter bag group to intercept and collect the bamboo powder; and A powder discharging mechanism (82), the powder discharging mechanism (82) is communicated with the bottom of the separation box (81) to output the collected bamboo powder.

6. A bamboo chip crushing and processing system according to claim 3, characterized in that, The flail mechanism (2) includes: A rotating shaft part (21), the rotating shaft part (21) is rotatably arranged; Rod bodies (22), several groups of the rod bodies (22) are distributed around the rotating shaft part (21) and rotate synchronously with the rotating shaft part (21); and Flails (23), several of the flails (23) are distributed and installed on the rod bodies.

7. A bamboo chip crushing and processing system according to claim 6, characterized in that, The wire drawing mechanism (3) includes: Wire drawing sheets (31), several of the wire drawing sheets (31) are annularly arranged on the inner wall of the crushing barrel (1), and the wire drawing sheets (31) are arranged in a staggered manner with the flails (23), so that when the flails (23) rotate to face the wire drawing sheets (31), the material falling between the working surfaces of the two is rubbed; Step-shaped protrusions (32) are arranged on the working surfaces of the flails (23) and the wire drawing sheets (31), and air holes (220) are arranged on the flails (23).

8. A bamboo chip crushing and processing system according to claim 3, characterized in that, Both the first filtering mechanism (4) and the second filtering mechanism (5) are coaxially installed on the flail mechanism (2) and rotate synchronously with the flail mechanism (2); a first filtering port (40) is arranged on the first filtering mechanism (4) for the material that has been hammered in the hammering area (101) to pass through to the rubbing area (102), and a second filtering port (50) is arranged on the second filtering mechanism (5) for the material that has been wire drawn in the working area (103) to pass through to the discharging area (104).

9. A bamboo chip crushing and processing system according to claim 4, wherein, The separation mechanism (7) includes: A rotating shaft B (71), the rotating shaft B (71) is driven by a driving part to rotate; Separation bars (72), several of the separation bars (72) are horizontally distributed and installed on the rotating shaft B (71) to support and agitate the material falling in the separation barrel (61) during rotation; and Blocking bars (73), several of the blocking bars (73) are vertically arranged around the outer circle of the rotating shaft B (71), a fiber channel is formed between the blocking bars (73) and the separation barrel (61), the bamboo fiber in the mixed material is centrifugally thrown out and blocked in the fiber channel by the blocking bars (73) and output downward, and a powder channel is formed between the rotating shaft B (71) and the blocking bars (73), and the bamboo powder in the mixed material is output upward in the powder channel under the action of negative pressure.

10. A method for processing bamboo chips by crushing, characterized in that, Including the following steps: Step 1, bamboo sheet beating: Input the bamboo sheet to be processed into the sheet-beating area (101) of the crushing barrel (1). The sheet-beating mechanism (2) rotates to beat and break the bamboo sheet to obtain scattered bamboo materials; Step 2, rubbing into filaments: The scattered bamboo materials obtained in Step 1 are pneumatically conveyed into the rubbing area (102) of the crushing barrel (1). During the rotation of the sheet-beating mechanism (2), it is misaligned and cooperates with the filament-rubbing mechanism (3) to extrude and rub the scattered bamboo materials falling between the working surfaces of the two, obtaining a mixture of bamboo fibers and bamboo powder; Step 3, product separation and bamboo fiber collection: The mixture obtained in Step 2 is pneumatically conveyed into the separation barrel (61). The separation mechanism (7) rotates to support, agitate and separate the mixture. The bamboo powder with small mass is pneumatically conveyed upward and output, and the bamboo fibers with large mass fall by their own gravity and are output through the fiber discharging mechanism (62); Step 4, bamboo powder collection: The bamboo powder pneumatically conveyed and output in Step 3 enters the separation box (81). The airflow carrying the bamboo powder passes through the filter bag group, and the bamboo powder is intercepted for collection and output by the powder discharging mechanism (82).

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