Dedusting and undersize material collecting system and method for straw processing

Abstract

The invention discloses a dust removal and undersize material collection system and method for straw processing, and relates to the field of straw processing, the dust removal and undersize material collection system comprises a dust suction device and a dust removal collection device, a first dust suction cover is used for covering the outside of a straw pulverizer, and the first dust suction cover is communicated with a dust suction main pipe through a first dust suction branch pipe; the second dust collection cover is used for covering the outside of the straw conveyor and is communicated with the dust collection main pipe through a second dust collection branch pipe, the third dust collection cover is used for covering the outside of the straw screening and impurity removing machine, and the bottom of the third dust collection cover is communicated with the dust collection main pipe through a third dust collection branch pipe; the dust collection device comprises a collection part, an air inducing mechanism and a plurality of plastic dust removers arranged on the upper portion of the collection part. According to the dust removal and undersize material collection system and method for straw processing, power consumption and cost are reduced, and the problems that dust pollution on a straw processing site is serious, the conveying efficiency is low due to inflexible belt conveying, the number of moving devices is large, and site arrangement is disordered are solved.

Description

Technical Field

[0001] The invention relates to the field of straw processing, and in particular to a system and method for dust removal and undersize material collection in straw processing. Background Art

[0002] Dry crop straw will generate a lot of dust during the crushing, screening, impurity removal and transportation process, and the air dust pollution around the processing equipment is very serious. The main components of dust are fine dry soil and straw end. The specific gravity of straw end is very small, and the dust removal effect of cyclone dust collector is not good. The dust removal equipment used in the existing technology is mainly bag dust collector, which has the following disadvantages: bag dust collector has large air resistance and large supporting fan power; bag dust collector back-blowing cleaning requires supporting air compressor, and the power consumption is not small; bag dust collector filter bag has a certain life, usually need to be replaced once a year, the cost is high. The main component of the screened material produced by straw screening and impurity removal is straw end. The existing technology mostly uses belt conveyor for transportation, which has dust and spillage, poor on-site hygiene, and still has dust pollution problems; at the same time, due to the large amount of screened material, it is not suitable to use bag dust removal method to collect the material; in addition, belt conveyor is not flexible, and may require multiple belt conveyors to be used in combination, with many moving equipment, messy on-site layout, and low transportation efficiency. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides a dust removal and undersize material collection system and method for straw processing, which reduces power consumption and cost, and solves the problems of serious dust pollution at the straw processing site, low conveying efficiency caused by inflexible belt conveying, many moving equipment, and chaotic on-site layout.

[0004] To achieve the above object, the present invention provides the following solutions:

[0005] The present invention provides a dust removal and undersize material collection system for straw processing, comprising a dust collection device and a dust collection device, wherein the dust collection device comprises a first dust collection hood, a second dust collection hood, a third dust collection hood, a dust collection main pipe, a first dust collection branch pipe, a second dust collection branch pipe and a third dust collection branch pipe, wherein the first dust collection hood is used to cover the outside of a straw crusher, the first dust collection hood is connected to the dust collection main pipe through the first dust collection branch pipe, the second dust collection hood is used to cover the outside of a straw conveyor, the second dust collection hood is connected to the dust collection main pipe through the second dust collection branch pipe The third dust hood is used to cover the outside of the straw screening and impurity removing machine, and the bottom of the third dust hood is connected to the dust suction main pipe through the third dust suction branch pipe; the dust collection device includes a collecting component, an air induced mechanism and a plurality of plastic dust collectors arranged on the upper part of the collecting component, the bottom of each of the plastic dust collectors is connected to the collecting component, and the air inlet of each of the plastic dust collectors is connected to the air outlet of the dust suction main pipe, and the air induced mechanism is used to draw the air containing dust and screened material in the dust suction main pipe to the air inlet of the plastic dust collector.

[0006] Preferably, the plastic dust collector comprises a dust collector body, a dust collector air inlet pipe and a dust collector air outlet pipe, the dust collector body is closed at the top and open at the bottom, the dust collector body is arranged on the upper part of the collecting component, and the bottom of the dust collector body is connected with the collecting component, the dust collector air inlet pipe is arranged on one side of the top of the dust collector body and is connected with the dust collector body, the dust collector air outlet pipe passes through the top of the dust collector body and extends into the dust collector body, and the height of the bottom end of the dust collector air outlet pipe is lower than the setting height of the dust collector air inlet pipe.

[0007] Preferably, the plastic dust collector further comprises a filter tube, the top of the filter tube is open and the bottom is closed, the top of the filter tube is connected to the bottom of the dust collector air outlet pipe, and the side wall of the filter tube is provided with a plurality of through holes.

[0008] Preferably, the dust collection device also includes a shell, a partition plate and a connecting mechanism, the shell is closed at the top and open at the bottom, the shell is arranged on the top of the collecting component, the partition plate is arranged in the shell, the upper part of the partition plate forms an air outlet chamber, and an air inlet chamber is formed between the partition plate and the collecting component, the air inlet of each of the plastic dust collectors is connected to the air inlet chamber, the connecting mechanism is arranged in the air inlet chamber, and the air outlet of each of the plastic dust collectors is connected to the air outlet chamber through the connecting mechanism; an air inlet pipe is arranged on one side of the air inlet chamber, the air outlet of the dust suction pipe is connected to the air inlet pipe, and an air outlet pipe is arranged on the other side of the air outlet chamber, and the air outlet pipe is connected to the air inlet of the air induced mechanism.

[0009] Preferably, the connecting mechanism includes a plurality of connecting components, the connecting components include a fixed tube and a connecting hose, a plurality of first mounting holes are provided on the partition plate, the upper end of each of the fixed tubes is provided at the bottom of the partition plate and corresponds to a position of the first mounting hole, the upper end of the connecting hose is connected to the lower end of the fixed tube, and the lower end of each of the connecting hoses is connected to an air outlet of the plastic dust collector.

[0010] Preferably, the induced draft mechanism includes an induced draft fan, an induced draft inlet pipe and an induced draft outlet pipe, one end of the induced draft inlet pipe is connected to the main air outlet pipe, the other end of the induced draft inlet pipe is connected to the air inlet of the induced draft fan, the air outlet of the induced draft fan is connected to one end of the induced draft outlet pipe, and the other end of the induced draft outlet pipe is used to be connected to the chimney.

[0011] Preferably, the collecting component includes a support frame, a collecting bucket, a mounting plate and a star-shaped discharger, the support frame is installed at the lower part of the collecting bucket, the collecting bucket is open at the top and the bottom, the bottom of the shell is connected to the top of the collecting bucket, the mounting plate covers the opening at the top of the collecting bucket, a plurality of second mounting holes are provided on the mounting plate, each of the second mounting holes is installed with a plastic dust collector, the bottom of each plastic dust collector is connected to the collecting bucket, and the star-shaped discharger is arranged at the bottom of the collecting bucket.

[0012] Preferably, the dust collection device also includes a mounting pipe, the air inlet of the air induced mechanism is connected to the air outlet of the dust suction pipe, the air outlet of the air induced mechanism is connected to one end of the mounting pipe, the other end of the mounting pipe is a closed structure, and the air inlet of each of the plastic dust collectors is connected to the mounting pipe.

[0013] Preferably, the air induced mechanism includes an air fan, an air inlet pipe and an air outlet pipe, one end of the air inlet pipe is connected to the air outlet of the dust suction main pipe, the other end of the air inlet pipe is connected to the air inlet of the air fan, the air outlet of the air fan is connected to one end of the air outlet pipe, and the other end of the air outlet pipe is connected to one end of the mounting pipe; the collecting component is a dust collecting chamber, a mounting port is provided on one side of the dust collecting chamber, a sealing door that can be opened and closed is installed at the mounting port, a plurality of third mounting holes are provided on the top of the dust collecting chamber, a plastic dust collector is installed in each of the third mounting holes, and the bottom of each of the plastic dust collectors is connected to the dust collecting chamber.

[0014] The present invention also provides a method for using a dust removal and undersize material collection system for straw processing, comprising the following steps: respectively arranging the first dust hood, the second dust hood and the third dust hood on the outside of the straw crusher, the straw conveyor and the straw screening and impurity removal machine, opening the air induced mechanism, and pumping the air containing dust and undersize material in the dust suction main pipe to the air inlet of the plastic dust collector, the air containing dust and undersize material rotates at a high speed in the plastic dust collector, and the gas and solid are separated, and the clean air is discharged from the air outlet of the plastic dust collector, and the dust and undersize material enter the collection component.

[0015] Compared with the prior art, the present invention has achieved the following technical effects:

[0016] The bottom of each plastic dust collector in the straw processing dust removal and undersize material collection system of the present invention is connected to the collection component, and the air inlet of each plastic dust collector is connected to the air outlet of the dust suction pipe. The air induced by the air mechanism draws the air containing dust and undersize material in the dust suction pipe to the air inlet of the plastic dust collector. The air containing dust and undersize material rotates at a high speed in the plastic dust collector. The dust and undersize material rub against the inner wall of the plastic dust collector to generate static electricity. The dust and undersize material are negatively charged, and the inner wall of the plastic dust collector is positively charged, and they attract each other, thereby enhancing the dust removal effect. Compared with the bag dust collector, the power consumption and cost are reduced. At the same time, the undersize material produced by the straw screening and impurity removal machine is sucked into the plastic dust collector through the dust suction pipe together with the dust-laden air, without increasing the extra gas volume and power consumption, and no belt conveyor is needed to transport the undersize material. This solves the problems of serious dust pollution at the straw processing site, low conveying efficiency caused by inflexible belt conveying, many moving equipment, and messy on-site layout. The dust and undersize material enter the collecting component, which has the function of collecting the undersize material while processing the dust. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 A front view of a dust removal and undersize material collection system for straw processing provided in Embodiment 1 of the present invention;

[0019] Figure 2 A front view of the dust collection device in the straw processing dust removal and undersize material collection system provided in the first embodiment of the present invention when the induced draft mechanism is not installed;

[0020] Figure 3 A top view of a mounting plate in a dust removal and undersize material collection system for straw processing provided in Embodiment 1 of the present invention;

[0021] Figure 4 A front view of a plastic dust collector in the dust removal and undersize material collection system for straw processing provided in the first embodiment of the present invention;

[0022] Figure 5 A top view of a plastic dust collector in a straw processing dust removal and undersize material collection system provided in Example 1 of the present invention;

[0023] Figure 6 A front view of a dust collection device in a straw processing dust removal and undersize material collection system provided in the second embodiment of the present invention;

[0024] Figure 7A top view of the dust collection device in the straw processing dust removal and undersize material collection system provided in the second embodiment of the present invention when the induced draft mechanism is not installed;

[0025] Figure 8 A side view of a dust collection device in a straw processing dust removal and undersize material collection system provided in the second embodiment of the present invention;

[0026] Fig. 9 This is a front view of a plastic dust collector in the dust removal and undersize material collection system for straw processing provided in Example 2 of the present invention.

[0027] Description of reference numerals: 1. first dust hood; 2. second dust hood; 3. third dust hood; 4. first dust branch pipe; 5. second dust branch pipe; 6. third dust branch pipe; 7. first air door; 8. second air door; 9. dust main pipe; 10. induced air inlet pipe; 11. induced air fan; 12. induced air outlet pipe; 13. chimney; 14. air inlet pipe; 15. housing; 16. air outlet pipe; 17. collecting bucket; 18. supporting leg; 19. star discharger; 20. Compression and baling device; 21. partition plate; 22. air inlet chamber; 23. air outlet chamber; 24. fixed pipe; 25. connecting hose; 26. mounting plate; 27. second mounting hole; 28. cylinder; 29. ​​inverted cone; 30. dust collector air inlet pipe; 31. dust collector air outlet pipe; 32. limit plate; 33. fixed plate; 34. mounting pipe; 35. dust collecting chamber; 36. sealing door; 37. straw crusher; 38. straw conveyor; 39. straw screening and impurity removal machine. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] The purpose of the present invention is to provide a dust removal and undersize material collection system and method for straw processing, which reduces power consumption and cost, and solves the problems of serious dust pollution at the straw processing site, low conveying efficiency caused by inflexible belt conveying, many moving equipment, and chaotic on-site layout.

[0030] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] Embodiment 1:

[0032] like Figure 1-Figure 5As shown, this embodiment provides a dust removal and undersize material collection system for straw processing, including a dust collection device and a dust collection device, the dust collection device including a first dust collection hood 1, a second dust collection hood 2, a third dust collection hood 3, a dust collection main pipe 9, a first dust collection branch pipe 4, a second dust collection branch pipe 5 and a third dust collection branch pipe 6, the first dust collection hood 1 is used to cover the outside of the straw crusher 37, the first dust collection hood 1 is connected to the dust collection main pipe 9 through the first dust collection branch pipe 4, so that the dust generated during the operation of the straw crusher 37 enters the dust collection main pipe 9 through the first dust collection branch pipe 4. The second dust collection hood 2 is used to cover the outside of the straw conveyor 38, the second dust collection hood 2 is connected to the dust collection main pipe 9 through the second dust collection branch pipe 5, so that the dust generated during the operation of the straw conveyor enters the dust collection main pipe 9 through the second dust collection branch pipe 5. The third dust hood 3 is used to cover the outside of the straw screening and impurity removing machine 39 , and the bottom of the third dust hood 3 is connected to the dust main pipe 9 through the third dust branch pipe 6 , so that the screened material of the straw screening and impurity removing machine 39 enters the dust main pipe 9 through the third dust branch pipe 6 .

[0033] The dust collection device includes a collection component, an air-inducing mechanism and a plurality of plastic dust collectors arranged on the upper part of the collection component. The bottom of each plastic dust collector is connected to the collection component, and the air inlet of each plastic dust collector is connected to the air outlet of the dust suction pipe 9. The air-inducing mechanism is used to draw the air containing dust and screened material in the dust suction pipe 9 to the air inlet of the plastic dust collector.

[0034] Specifically, the top of the first dust hood 1 is connected to the dust main pipe 9 through the first dust branch pipe 4, and the first dust branch pipe 4 is provided with a first damper 7. The top of the second dust hood 2 is connected to the dust main pipe 9 through the second dust branch pipe 5, and the second dust branch pipe 5 is provided with a second damper 8.

[0035] In this specific embodiment, two straw conveyors 38 and two straw screening and impurity removers 39 are provided, each straw conveyor 38 is provided with a second dust hood 2 on the outside, and each straw screening and impurity remover 39 is provided with a third dust hood 3 on the outside. The straw crusher 37, a straw conveyor 38, a straw screening and impurity remover 39, another straw conveyor 38 and another straw screening and impurity remover 39 are connected in sequence to form a processing line.

[0036] like Figure 4 and Figure 5As shown, the plastic dust collector includes a dust collector body, a dust collector air inlet pipe 30 and a dust collector air outlet pipe 31. The dust collector body is closed on the top and open on the bottom. The dust collector body is arranged on the upper part of the collecting component, and the bottom of the dust collector body is connected with the collecting component. The dust collector air inlet pipe 30 is arranged on one side of the top of the dust collector body and is connected with the dust collector body. The dust collector air outlet pipe 31 passes through the top of the dust collector body and extends into the dust collector body. The height of the bottom end of the dust collector air outlet pipe 31 is lower than the setting height of the dust collector air inlet pipe 30.

[0037] In order to make the air output stable and uniform, the plastic dust collector also includes a filter tube, the top of the filter tube is open and the bottom is closed, the top of the filter tube is connected to the bottom of the dust collector outlet pipe 31, and the side wall of the filter tube is provided with multiple through holes.

[0038] The plastic dust collector in this embodiment is processed by injection molding, and the wall of the dust collector is smooth and the size is accurate. The material used for injection molding is polyethylene, polypropylene or polyester, which is an electrical insulator. The air containing dust and undersize materials rotates at high speed in the plastic dust collector, and the dust and undersize materials rub against the inner wall of the plastic dust collector to generate static electricity. The dust and undersize materials are negatively charged, and the inner wall of the plastic dust collector is positively charged, which attract each other, thereby greatly enhancing the dust removal effect. It is particularly suitable for processing dust and undersize materials generated by straw processing. The dust removal efficiency is greater than 98%, and dust and undersize materials are almost invisible at the total air outlet. The power consumption is reduced by more than 50% compared with the use of bag dust collectors. Compared with bag dust collectors, power consumption and costs are reduced.

[0039] The undersize material produced by the straw screening and impurity removal machine 39 is sucked into the plastic dust collector through the dust suction main pipe 9 together with the dust-laden air, without increasing the extra gas volume and power consumption, and does not require a belt conveyor to transport the undersize material. This solves the problems of severe dust pollution at the straw processing site, low conveying efficiency caused by inflexible belt conveying, many moving equipment, and messy on-site layout. The dust and undersize material enter the collecting component, which not only processes the dust, but also has the function of collecting the undersize material, that is, it is suitable for collecting the undersize material for straw processing and impurity removal, will not be blocked, and can collect the undersize material economically, hygienically, simply and efficiently.

[0040] The dust collection device in this embodiment also includes a shell 15, a partition plate 21 and a connecting mechanism. The shell 15 is closed at the top and open at the bottom. The shell 15 is arranged on the top of the collecting component. A partition plate 21 is arranged in the shell 15. An air outlet chamber 23 is formed on the upper part of the partition plate 21. An air inlet chamber 22 is formed between the partition plate 21 and the collecting component. The air inlet of each plastic dust collector is connected to the air inlet chamber 22. The connecting mechanism is arranged in the air inlet chamber 22. The air outlet of each plastic dust collector is connected to the air outlet chamber 23 through the connecting mechanism; an air inlet pipe 14 is arranged on one side of the air inlet chamber 22, and the air outlet of the dust suction pipe 9 is connected to the air inlet pipe 14. An air outlet pipe 16 is arranged on the other side of the air outlet chamber 23, and the air outlet pipe 16 is connected to the air inlet of the air induced mechanism.

[0041] The connecting mechanism includes multiple connecting components, and the connecting components include a fixed tube 24 and a connecting hose 25. A plurality of first mounting holes are provided on the partition plate 21. The upper end of each fixed tube 24 is provided at the bottom of the partition plate 21 and corresponds to a first mounting hole position. The upper end of the connecting hose 25 is connected to the lower end of the fixed tube 24, and the lower end of each connecting hose 25 is connected to the air outlet of a plastic dust collector. Specifically, the lower end of the connecting hose 25 is connected to the dust collector air outlet 31 of a plastic dust collector.

[0042] Specifically, the upper end of the connecting hose 25 is sleeved on the outside of the fixed pipe 24 and fastened by a first pipe clamp, and the lower end of the connecting hose 25 is sleeved on the outside of the dust collector outlet pipe 31 and fastened by a second pipe clamp, thereby ensuring that there is no air leakage at the connection.

[0043] In this specific embodiment, the outer diameter of the fixed tube 24 is 110 mm and the length is 80 mm. The inner diameter of the connecting hose 25 is 110 mm. The connecting hose 25 in this embodiment is a polyurethane copper-coated hose.

[0044] The induced draft mechanism includes an induced draft fan 11, an induced draft inlet pipe 10 and an induced draft outlet pipe 12. One end of the induced draft inlet pipe 10 is connected to the air outlet main pipe 16, and the other end of the induced draft inlet pipe 10 is connected to the air inlet of the induced draft fan 11. The air outlet of the induced draft fan 11 is connected to one end of the induced draft outlet pipe 12, and the other end of the induced draft outlet pipe 12 is used to be connected to the chimney 13.

[0045] The collecting component includes a support frame, a collecting hopper 17, a mounting plate 26 and a star-shaped discharger 19. The support frame is mounted on the lower part of the collecting hopper 17. The collecting hopper 17 is open at the top and the bottom. The bottom of the housing 15 is connected to the top of the collecting hopper 17. The mounting plate 26 covers the opening at the top of the collecting hopper 17. A settling chamber is formed between the mounting plate 26 and the collecting hopper 17. The mounting plate 26 is provided with a plurality of second mounting holes 27. The number of the second mounting holes 27 is the same as the number of the first mounting holes. A plastic dust collector is installed in each of the second mounting holes 27. The bottom of each plastic dust collector is connected to the collecting hopper 17. The star-shaped discharger 19 is provided at the bottom of the collecting hopper 17. The star-shaped discharger 19 can prevent external air from entering.

[0046] The present embodiment also includes a compression packing device 20, which is arranged below the collecting bucket 17. In order to facilitate collection, the lower part of the collecting bucket 17 is an inverted cone structure.

[0047] The support frame in this embodiment includes a plurality of legs 18 , and the upper end of each leg 18 is connected to the collecting bucket 17 , thereby supporting the collecting bucket 17 .

[0048] Specifically, the dust collector body includes a cylinder 28 and an inverted cone cylinder 29 connected in sequence from top to bottom, and a limit plate 32 is fixedly sleeved on the outside of the cylinder 28. The lower end of the inverted cone cylinder 29 is an open structure, and the upper end of the cylinder 28 is a closed structure. The dust collector air inlet pipe 30 is arranged on one side of the upper part of the cylinder 28, and the dust collector air outlet pipe 31 passes through the top of the cylinder 28 and extends into the cylinder 28 and the inverted cone cylinder 29.

[0049] In this specific embodiment, the inner diameter and outer diameter of the cylinder 28 of the dust collector body are 306 mm and 314 mm respectively, the inner diameter of the dust collector air inlet pipe 30 and the dust collector air outlet pipe 31 are both 103 mm, and the outer diameter is 110 mm, and the height of the plastic dust collector is 718 mm.

[0050] Specifically, the second mounting hole 27 is a round hole with a diameter of 314 mm. The dust collector body can be pressed into and clamped in the second mounting hole 27, and the limiting plate 32 is located above the mounting plate 26 for limiting, and the outer wall of the dust collector body is tightly fitted with the second mounting hole 27. Further, in order to improve the sealing of the plastic dust collector installation, the dust collector body can be bonded to the second mounting hole 27.

[0051] In this specific embodiment, the shell 15 and the collection bucket 17 are both made of steel plates, and the lower edge of the shell 15 is welded to the upper edge of the collection bucket 17. The mounting plate 26 is a steel plate, which is welded to the top of the collection bucket 17. The partition plate 21 is a steel plate, which is welded to the shell 15, and the upper ends of each fixed pipe 24 are welded to the bottom of the partition plate 21. In this embodiment, full welding is adopted so that the weld will not leak air.

[0052] The mounting plate 26 in this embodiment is square, with a side length of 2.9m and a thickness of 8mm. The second mounting holes 27 are arranged in 7 rows and 7 columns, with a total of 49 holes, and the center spacing of the holes is 380mm.

[0053] The device in this embodiment is equipped with 49 plastic dust collectors, which can process 15,000 to 25,000 cubic meters of air containing dust and undersize materials per hour.

[0054] The present embodiment also provides a method for using a dust removal and undersize material collection system for straw processing, comprising the following steps: respectively arranging a first dust hood 1, a second dust hood 2 and a third dust hood 3 on the outside of a straw crusher 37, a straw conveyor 38 and a straw screening and impurity remover 39, turning on the induced draft mechanism so that the first dust hood 1, the second dust hood 2 and the third dust hood 3 maintain a slightly negative pressure state inside the hoods, pumping the air containing dust and undersize materials in the dust suction main pipe 9 to the air inlet of a plastic dust collector, the air containing dust and undersize materials rotates at a high speed in the plastic dust collector, and the gas and solid are separated, and the clean air is discharged from the air outlet of the plastic dust collector, and the dust and undersize materials enter the collecting component.

[0055] Specifically, the air containing dust and undersize materials enters the air inlet chamber 22 from the air inlet main pipe 14, and then can only enter the dust collector body through the dust collector air inlet pipe 30 of the plastic dust collector, rotate at high speed in the dust collector body, separate the gas and solid, and the clean air is discharged from the dust collector outlet pipe 31, and enters the air outlet chamber 23 through the connecting hose 25 and the fixed pipe 24, and then is sucked out by the induced draft fan 11 and discharged through the chimney 13. The dust and undersize materials fall from the bottom of the dust collector body, enter the sedimentation chamber, and finally fall into the compression packaging device 20 through the star discharger 19, and are packaged and stored for takeout.

[0056] Embodiment 2:

[0057] like Figure 6-Figure 9 As shown, the dust collection device in this embodiment also includes a mounting pipe 34, the air inlet of the air induced mechanism is connected to the air outlet of the dust suction main pipe 9, the air outlet of the air induced mechanism is connected to one end of the mounting pipe 34, and the other end of the mounting pipe 34 is a closed structure, and the air inlet of each plastic dust collector is connected to the mounting pipe 34.

[0058] Specifically, the induced air mechanism includes an induced air fan 11, an induced air inlet pipe 10 and an induced air outlet pipe 12, one end of the induced air inlet pipe 10 is connected to the air outlet of the dust collection main pipe 9, the other end of the induced air inlet pipe 10 is connected to the air inlet of the induced air fan 11, the air outlet of the induced air fan 11 is connected to one end of the induced air outlet pipe 12, and the other end of the induced air outlet pipe 12 is connected to one end of the mounting pipe 34.

[0059] The collecting component in this embodiment is a dust collecting chamber 35, and a mounting opening is provided on one side of the dust collecting chamber 35, and a sealing door 36 that can be opened and closed is installed at the mounting opening, so that it is convenient to enter the dust collecting chamber 35 when the sealing door 36 is opened, and the dust collecting chamber 35 is kept sealed when the sealing door 36 is closed. A plurality of third mounting holes are provided on the top of the dust collecting chamber 35, and a plastic dust collector is installed in each of the third mounting holes, and the bottom of each plastic dust collector is connected to the dust collecting chamber 35.

[0060] In this embodiment, the plurality of plastic dust collectors are arranged in two rows, and the two rows of plastic dust collectors are respectively arranged on both sides of the mounting tube 34 .

[0061] like Fig. 9 As shown, the plastic dust collector includes a dust collector body, a dust collector air inlet pipe 30 and a dust collector air outlet pipe 31. The dust collector body includes a cylinder 28 and an inverted cone cylinder 29 connected in sequence from top to bottom. The outer fixed sleeve of the inverted cone cylinder 29 is provided with a fixing plate 33. The inverted cone cylinder 29 is installed in the third installation hole, and the fixing plate 33 is fixed to the top of the dust collecting chamber 35 by a plurality of bolts. The lower end of the inverted cone cylinder 29 is an open structure, and the lower end of the inverted cone cylinder 29 is connected to the dust collecting chamber 35. The upper end of the cylinder 28 is a closed structure. The dust collector air inlet pipe 30 is arranged on one side of the upper part of the cylinder 28. The dust collector air inlet pipe 30 is connected to the installation pipe 34. The dust collector air outlet pipe 31 passes through the top of the cylinder 28 and extends into the cylinder 28 and the inverted cone cylinder 29. The outer end of the dust collector air outlet pipe 31 is connected to the outside.

[0062] During operation, the induced draft fan 11 is turned on to draw the air containing dust and undersize material in the dust suction main pipe 9 into the installation pipe 34, and enters the dust collector body through the dust collector air inlet pipe 30 of the plastic dust collector, rotates at high speed in the dust collector body, separates gas and solid, and the clean air is discharged from the dust collector air outlet pipe 31, and the dust and undersize material fall from the bottom of the dust collector body and fall into the dust collecting chamber 35.

[0063] The present specification uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A dust removal and undersize material collection system for straw processing, characterized in that: The invention comprises a dust suction device and a dust collection device, wherein the dust suction device comprises a first dust suction hood, a second dust suction hood, a third dust suction hood, a dust suction main pipe, a first dust suction branch pipe, a second dust suction branch pipe and a third dust suction branch pipe, wherein the first dust suction hood is used to cover the outside of the straw crusher, the first dust suction hood is connected with the dust suction main pipe through the first dust suction branch pipe, the second dust suction hood is used to cover the outside of the straw conveyor, the second dust suction hood is connected with the dust suction main pipe through the second dust suction branch pipe, and the third dust suction hood is used to cover The third dust hood is arranged outside the straw screening and impurity removing machine, and the bottom of the third dust suction hood is connected with the dust suction main pipe through the third dust suction branch pipe; the dust collection device includes a collecting component, an air induced mechanism and a plurality of plastic dust collectors arranged on the upper part of the collecting component, the bottom of each plastic dust collector is connected with the collecting component, the air inlet of each plastic dust collector is connected with the air outlet of the dust suction main pipe, and the air induced mechanism is used to draw the air containing dust and screened material in the dust suction main pipe to the air inlet of the plastic dust collector.

2. The dust removal and undersize material collection system for straw processing according to claim 1, characterized in that: The plastic dust collector includes a dust collector body, a dust collector air inlet pipe and a dust collector air outlet pipe. The dust collector body is closed on the top and open on the bottom. The dust collector body is arranged on the upper part of the collecting component, and the bottom of the dust collector body is connected with the collecting component. The dust collector air inlet pipe is arranged on one side of the top of the dust collector body and is connected with the dust collector body. The dust collector air outlet pipe passes through the top of the dust collector body and extends into the dust collector body. The height of the bottom end of the dust collector air outlet pipe is lower than the setting height of the dust collector air inlet pipe.

3. The dust removal and undersize material collection system for straw processing according to claim 2, characterized in that: The plastic dust collector also includes a filter tube, the top of the filter tube is open and the bottom is closed, the top of the filter tube is connected to the bottom of the dust collector air outlet pipe, and the side wall of the filter tube is provided with a plurality of through holes.

4. The dust removal and undersize material collection system for straw processing according to claim 1, characterized in that: The dust collection device also includes a shell, a partition plate and a connecting mechanism. The shell is closed at the top and open at the bottom. The shell is arranged on the top of the collecting component. The partition plate is arranged in the shell. An air outlet chamber is formed on the upper part of the partition plate. An air inlet chamber is formed between the partition plate and the collecting component. The air inlet of each of the plastic dust collectors is connected to the air inlet chamber. The connecting mechanism is arranged in the air inlet chamber. The air outlet of each of the plastic dust collectors is connected to the air outlet chamber through the connecting mechanism. An air inlet pipe is arranged on one side of the air inlet chamber. The air outlet of the dust suction pipe is connected to the air inlet pipe. An air outlet pipe is arranged on the other side of the air outlet chamber. The air outlet pipe is connected to the air inlet of the air induced mechanism.

5. The dust removal and undersize material collection system for straw processing according to claim 4, characterized in that: The connecting mechanism includes a plurality of connecting components, and the connecting components include a fixed tube and a connecting hose. A plurality of first mounting holes are arranged on the partition plate. The upper end of each of the fixed tubes is arranged at the bottom of the partition plate and corresponds to a position of the first mounting hole. The upper end of the connecting hose is connected to the lower end of the fixed tube, and the lower end of each of the connecting hoses is connected to an air outlet of the plastic dust collector.

6. The dust removal and undersize material collection system for straw processing according to claim 4, characterized in that: The induced draft mechanism includes an induced draft fan, an induced draft inlet pipe and an induced draft outlet pipe, one end of the induced draft inlet pipe is connected to the main air outlet pipe, the other end of the induced draft inlet pipe is connected to the air inlet of the induced draft fan, the air outlet of the induced draft fan is connected to one end of the induced draft outlet pipe, and the other end of the induced draft outlet pipe is used to be connected to the chimney.

7. The dust removal and undersize material collection system for straw processing according to claim 4, characterized in that: The collecting component includes a supporting frame, a collecting bucket, a mounting plate and a star-shaped discharger, the supporting frame is installed at the lower part of the collecting bucket, the collecting bucket is open at the top and the bottom, the bottom of the shell is connected to the top of the collecting bucket, the mounting plate is covered and arranged at the opening at the top of the collecting bucket, a plurality of second mounting holes are arranged on the mounting plate, a plastic dust collector is installed in each of the second mounting holes, the bottom of each plastic dust collector is connected to the collecting bucket, and the star-shaped discharger is arranged at the bottom of the collecting bucket.

8. The dust removal and undersize material collection system for straw processing according to claim 1, characterized in that: The dust collection device also includes a mounting pipe, the air inlet of the air induced mechanism is connected to the air outlet of the dust suction pipe, the air outlet of the air induced mechanism is connected to one end of the mounting pipe, the other end of the mounting pipe is a closed structure, and the air inlet of each of the plastic dust collectors is connected to the mounting pipe.

9. The dust removal and undersize material collection system for straw processing according to claim 8, characterized in that: The air induced mechanism includes an air induced fan, an air induced inlet pipe and an air induced outlet pipe, one end of the air induced inlet pipe is connected to the air outlet of the dust suction main pipe, the other end of the air induced inlet pipe is connected to the air inlet of the air induced fan, the air outlet of the air induced fan is connected to one end of the air induced outlet pipe, and the other end of the air induced outlet pipe is connected to one end of the mounting pipe; the collecting component is a dust collecting chamber, a mounting port is provided on one side of the dust collecting chamber, a sealing door that can be opened and closed is installed at the mounting port, a plurality of third mounting holes are provided on the top of the dust collecting chamber, a plastic dust collector is installed in each of the third mounting holes, and the bottom of each of the plastic dust collectors is connected to the dust collecting chamber.

10. A method for using the dust removal and undersize material collection system for straw processing according to any one of claims 1 to 9, characterized in that: The method comprises the following steps: the first dust hood, the second dust hood and the third dust hood are respectively installed on the outside of the straw crusher, the straw conveyor and the straw screening and impurity removing machine, the air induced mechanism is turned on, and the air containing dust and undersize in the dust suction pipe is pumped to the air inlet of the plastic dust collector, the air containing dust and undersize rotates at a high speed in the plastic dust collector, and the gas and solid are separated, and the clean air is discharged from the air outlet of the plastic dust collector, and the dust and undersize enter the collecting component.

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