Box type air force sorting equipment for solid waste treatment

Abstract

This invention discloses a box-type pneumatic sorting device for solid waste treatment. The front box has a first discharge port located below the output end of a first belt conveyor mechanism. The separation component is a rotary separation component located downstream of the first belt conveyor mechanism. The jetting component includes a blower and a nozzle, with the blower connected to the nozzle. The nozzle is located below the first belt conveyor mechanism and cooperates with the separation component to separate light and heavy waste. The jetting component also includes a first connecting seat, a second connecting seat, a third connecting seat, a fourth connecting seat, and an angle adjustment component. The first and second connecting seats are respectively fixed to the nozzle, and the third and fourth connecting seats are respectively fixed to the first belt conveyor mechanism. The first and third connecting seats are hinged together. One end of the second connecting seat is connected to the angle adjustment component, and the other end of the angle adjustment component is connected to the fourth connecting seat. This invention can prevent pneumatic sorting failure.

Description

Technical Field

[0001] This invention relates to the field of waste treatment, and particularly to a box-type pneumatic sorting device for solid waste treatment. Background Technology

[0002] Construction waste refers to the general term for slag, waste concrete, waste bricks and stones, and other waste generated during the production activities of the construction industry, such as demolition, construction, decoration, and repair. Classified by composition, construction waste can be divided into slag, concrete blocks, crushed stone, brick and tile fragments, waste mortar, mud, asphalt blocks, waste plastics, waste metals, waste bamboo and wood, foam, etc.

[0003] Construction waste poses certain hazards, specifically including: indiscriminate dumping of construction waste creates safety risks; construction waste severely pollutes water resources; and construction waste affects air quality. With ongoing research into construction waste, the following applications have been identified.

[0004] (1) Coarse and fine aggregates can be produced from waste building concrete and waste bricks, which can be used to produce concrete and mortar of corresponding strength grades or to prepare building materials such as blocks, wall panels, and floor tiles. After adding curing materials, coarse and fine aggregates can also be used for highway pavement base courses.

[0005] (2) Aggregates can be produced from waste bricks and tiles, which can be used to produce building materials such as recycled bricks, blocks, wall panels, and floor tiles.

[0006] (3) Slag can be used for road construction, pile foundation filling, foundation, etc.

[0007] (4) For waste wood construction waste, wood that is not obviously damaged can be directly reused for reconstruction, while severely damaged wood components can be used as raw materials for recycled wood panels or for papermaking, etc.

[0008] (5) Waste pavement asphalt mixture can be directly used in recycled asphalt concrete in appropriate proportions.

[0009] (6) Waste road concrete can be processed into recycled aggregate for use in the preparation of recycled concrete.

[0010] (7) Scrap steel, scrap steel bars and other scrap metal materials can be directly reused or recycled.

[0011] (8) Waste glass, waste plastics, waste ceramics and other construction waste shall be utilized in different ways depending on the circumstances.

[0012] As can be seen from the above applications of construction waste, different materials are required for construction waste in different locations. Therefore, the primary task is to sort construction waste so that the sorted materials can be made into various materials.

[0013] Construction waste can be classified by weight into heavy waste (heavier waste) and light waste (lighter waste). Therefore, the first sorting step is usually to separate heavy waste from light waste. The equipment commonly used for separating heavy and light waste is air separation equipment, such as the air separator disclosed in CN114522881A. The working principle of this air separator is as follows: construction waste is fed into the air separator through its inlet. The waste falls onto a conveyor mechanism, and as it is transferred to a separating drum, heavy waste automatically falls towards the outlet, while light waste enters the settling chamber under the combined action of the jet assembly and the separating drum. Ultralight waste is carried away by the airflow generated by the vacuum pump.

[0014] The air separator mentioned above has the following drawbacks:

[0015] First, the conveying mechanism uses a belt conveyor. Because the distance between the output end of the conveyor and the separating roller is relatively short, dust floats around in the box, causing dust to adhere to the belt. This reduces the efficiency of the belt conveyor. When the dust thickness reaches a certain level, the belt conveyor will slip.

[0016] Secondly, since the angle of the jet assembly needs to be adjusted, an inner support and a swing arm are installed inside the container. The jet assembly is connected to the inner support and the swing arm respectively. The swing arm is connected to the roller support that supports the separation roller. Since the swing arm will pass through the area where heavy waste falls, although the swing arm is located on both sides of the separation roller, the falling heavy waste has no fixed trajectory. Therefore, the swing arm is very likely to be hit by heavy waste. Once the swing arm breaks, the jet assembly will fail to blow light waste, ultimately leading to the failure of light and heavy waste separation.

[0017] Third, lightweight waste often contains large amounts of dust, lightweight materials (plastics, foam), and small particles. When these materials pass through the air separator, the lightweight materials can easily clog the separator. Although some air separation equipment currently has filters installed in the settling chamber, these filters consist of multiple chains. However, these chains can only block lightweight materials and cannot filter out small particles, still causing air separator clogging. In addition, lightweight materials can easily get tangled in the chains, requiring regular cleaning. Summary of the Invention

[0018] This invention provides a box-type air separation device for solid waste treatment, which can avoid air separation failure.

[0019] The technical solutions to the above technical problems are as follows:

[0020] A box-type pneumatic sorting device for solid waste treatment includes a front box, a first belt conveyor mechanism, a separation component, an air jet assembly, and a settling box. The first belt conveyor mechanism, the separation component, and the air jet assembly are all installed inside the front box. The settling box is connected to the front box and is located downstream of the separation component. The front box has a first discharge port located below the output end of the first belt conveyor mechanism. The separation component is a rotary separation component located downstream of the first belt conveyor mechanism. The air jet assembly includes a blower and a nozzle. The blower is connected to the nozzle, which is located below the first belt conveyor mechanism. The nozzle cooperates with the separation component to separate light waste from heavy waste. The air jet assembly also includes a first connecting seat, a second connecting seat, a third connecting seat, a fourth connecting seat, and an angle adjustment component. The first and second connecting seats are respectively fixed to the nozzle, and the third and fourth connecting seats are respectively fixed to the first belt conveyor mechanism. The first and third connecting seats are hinged together. The second connecting seat is connected to one end of the angle adjustment component, and the other end of the angle adjustment component is connected to the fourth connecting seat.

[0021] In this invention, the third and fourth connecting seats are fixed to the first belt conveyor mechanism, making the first and third connecting seats hinged together. The second connecting seat is connected to one end of the angle adjustment component, and the other end of the angle adjustment component is connected to the fourth connecting seat. This structure prevents parts such as the angle adjustment component from passing through the space between the first belt conveyor mechanism and the separation component to connect to the separation component. This prevents material output from the first belt conveyor mechanism from hitting the angle adjustment component, thus preventing damage to the jet assembly and ensuring that the separation effect of the jet assembly on heavy and light waste is always effective. Attached Figure Description

[0022] Figure 1 This is a perspective view of the box-type air-powered sorting device for solid waste treatment according to the present invention.

[0023] Figure 2 This is a three-dimensional view of the first belt conveyor mechanism.

[0024] Figure 3 In order to be in Figure 2 The diagram shows the first belt conveyor mechanism from another direction, with some parts hidden.

[0025] Figure 4 This is a 3D view of the separated components.

[0026] Figure 5 for Figure 1 Enlarged view of the Q part in the image.

[0027] Figure 6 This is a schematic diagram of the angle adjustment component in the jet assembly.

[0028] Figure 7This is a schematic diagram showing the second belt conveyor mechanism with some parts hidden.

[0029] Figure 8 This is a three-dimensional view of a scraper-type material separator.

[0030] Figure 9 In order to be in Figure 7 The diagram shows a scraper-type material separator with some parts hidden, viewed from another direction.

[0031] Figure 10 This is a three-dimensional view of the lower shell.

[0032] Figure 11 This is an assembly drawing of the rotor assembly, the scraping assembly, and the adjusting assembly.

[0033] Figure 12 This is a partial schematic diagram of the rotor assembly and the scraping assembly.

[0034] Figure 13 This is a schematic diagram of the scraping component and the adjustment component.

[0035] Figure 14 This is an assembly drawing of the upper housing, rotor assembly, adjustment assembly, and purging assembly.

[0036] Figure 15 for Figure 14 Cross-sectional view.

[0037] Figure 16 for Figure 15 Enlarged view of part P in the image.

[0038] Labels in the attached diagram:

[0039] Front box A, first discharge port 11, first inlet port 12.

[0040] The first belt conveyor mechanism B, mounting bracket 21, belt drive mechanism 22, inner scraper assembly 23, bracket 23a, inner scraper 23b, elastic connecting plate 23c, buffer bed 24, blade holder 25, outer scraper 26, and adjusting frame 27.

[0041] Separator assembly C, bearing housing assembly 31, separating roller 32, driver 33, baffle plate 34, side sealing plate 34a, arc baffle plate 34b, arc mounting hole 34c, wind deflector 35, fastener 36.

[0042] Jet assembly D, fan 41, nozzle 42, first connecting seat 43, second connecting seat 44, third connecting seat 45, fourth connecting seat 46, angle adjustment assembly 47, connecting bracket 47a, screw 47b, clearance hole 47c, fork-shaped part 47d, baffle 48.

[0043] Settling box E, second discharge port 51.

[0044] The second belt conveyor F, the first mounting bracket 61, the first belt drive mechanism 62, the first inner scraper assembly 63, the first outer scraper assembly 64, and the chute 65.

[0045] Scraping material separator G, housing 71, lower housing 71a, lower arc-shaped seat 71a1, lower cylinder 71a2, side support plate 71a3, opening 71a4, upper housing 71b, lower support 71c, end plate 71d, inlet 72, outlet 73, ventilation hole 74, rotor assembly 75, disc-shaped component 75a, frame 75b, assembly slot 75c, adjustment scale 75d, geared motor 75e, rotating shaft 75f, connecting sleeve 75g, limit plate 75h, rotating support assembly 76, scraping assembly 77, adjustment assembly 78, connecting shaft 78a, bushing 78b, connecting arm 78c, adjustment seat 78d, screw 78e, adjusting nut 78f, pointer 78g, purging bracket 79, jet pipe 80, air supply unit 80a, first driver 81, drive arm 82, connecting rod 83, slide rail 84. Detailed Implementation

[0046] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0047] like Figures 1 to 16 As shown, the box-type pneumatic sorting device for solid waste treatment of the present invention includes a front box A, a first belt conveyor mechanism B, a separation component C, an air jet component D, a settling box E, a second belt conveyor mechanism F, and a scraper-type material separator G. The following is a detailed description of each part and the relationship between them.

[0048] The first conveyor mechanism B, the separation component C, and the jetting component D are all installed inside the front housing A. The settling tank E is connected to the front housing A and is located downstream of the separation component C. The front housing A has a first discharge port 11, located below the output end of the first conveyor mechanism B and between the first conveyor mechanism B and the separation component C. The front housing A also has a first inlet port 12, located above the output end of the first conveyor mechanism B.

[0049] The first belt conveyor mechanism B includes a mounting bracket 21, a belt drive mechanism 22, and an inner scraper assembly 23 for cleaning the inner surface of the belt drive mechanism 22. The belt drive mechanism 22 is mounted on the mounting bracket 21, and the inner scraper assembly 23 is fixed to the mounting bracket 21, engaging with the inner surface of the belt drive mechanism 22. One end of the mounting bracket 21 is hinged to the front housing A, and the other end is connected to an adjusting frame 27. The adjusting frame 27 is used to adjust the height of the output end of the first belt conveyor mechanism B, which coordinates with the separation assembly C to improve the separation effect of light and heavy waste. The structure of the adjusting frame 27 can be referenced from the first adjusting mechanism in CN114522881A.

[0050] The inner scraping assembly 23 includes an inner scraping bracket 23a, an inner scraper 23b, and an elastic connecting plate 23c. The inner scraping bracket 23a is polygonal. In this embodiment, the inner scraping bracket 23a is triangular. The shape of the inner scraping bracket 23a is preferably an isosceles triangle. One of the angles of the isosceles triangle points in the opposite direction to the direction of belt movement in the belt drive mechanism 22. The inner scraper 23b is fixed to the inner scraping bracket 23a. The inner scraper 23b is installed on the two sides of the isosceles triangle. When there is garbage on the belt, the garbage on the belt is scraped off by the inner scraper 23b, so that the garbage is separated from the belt. The separated garbage falls from both sides of the belt to the bottom of the box A under the obstruction of the inner scraping assembly 23.

[0051] The two ends of the elastic connecting plate 23c are bent relative to each other at the middle to form a first bent portion and a second bent portion. The first bent portion bends in a first direction, and the second bent portion bends in a second direction, with the first and second directions being opposite. One end of the elastic connecting plate 23c is fixed to the inner scraper bracket 23a, and the other end of the elastic connecting plate 23c is fixed to the mounting bracket 21. After this, there is a gap between the middle and second bent portions of the elastic connecting plate 23c and the mounting bracket 21. When the pressure on the elastic connecting plate 23c is too great, such as when the accumulated garbage on the inner surface of the belt is too thick, the elastic connecting plate 23c swings, thereby scraping off some of the garbage. After multiple scraping actions, all the garbage accumulated on the surface of the belt can be scraped off. This structure can avoid reducing the conveying speed of the belt drive mechanism 22 and ensure that the conveying efficiency of the belt drive mechanism 22 will not be reduced due to scraping obstruction.

[0052] By scraping and cleaning the inner surface of the belt using the aforementioned inner scraping component 23, the thickness of the accumulated garbage on the inner surface of the belt is greatly reduced, thereby preventing belt slippage and ensuring the conveying efficiency of the first belt conveyor mechanism B.

[0053] The first belt conveyor mechanism B also includes a buffer bed 24, which is fixed to the mounting bracket 21. The buffer bed 24 is located inside the belt drive mechanism 22 and mates with the inner surface of the belt drive mechanism 22. The buffer bed 24 is located directly below the first inlet 12. After the waste is fed into the first inlet 12, it falls onto the belt of the belt drive mechanism 22. Because the buffer bed 24 provides support to the belt drive mechanism 22, the impact force on the belt is reduced. The buffer bed 24 consists of a longitudinal beam and a buffer component mounted on the longitudinal beam. The buffer component may consist of an upper support plate, a lower support plate, and a spring. The spring is located between the upper and lower support plates, with one end of the spring mates with the upper support plate and the other end mates with the lower support plate. The upper support plate mates with the belt in the belt drive mechanism 22, and the lower support plate is fixed to the longitudinal beam.

[0054] The first belt conveyor B also includes an external scraping mechanism for cleaning the outer surface of the belt drive mechanism 22. The external scraping mechanism includes a blade holder 25 and an external scraper 26. The blade holder 25 is located at the end of the belt drive mechanism 22 and fixed to the mounting bracket 21, while the external scraper 26 is fixed to the blade holder 25. By scraping and cleaning the outer surface of the belt using the aforementioned external scraping mechanism, the thickness of accumulated debris on the outer surface of the belt is greatly reduced, unnecessary load on the belt drive mechanism 22 is reduced, and the conveying efficiency of the first belt conveyor B is ensured.

[0055] Separation component C is a rotary separation component located downstream of the first belt conveyor mechanism B. Separation component C includes a bearing housing assembly 31, a separation roller 32, a driver 33, a baffle plate 34, a baffle plate 35, and fasteners 36. Both ends of the separation roller 32 are connected to the bearing housing assembly 31. The bearing housing assembly 31 consists of a bearing housing and a bearing mounted on the bearing housing. The driver 33 is mounted on the bearing housing in the bearing housing assembly 31. Both ends of the separation roller 32 are connected to the bearing in the bearing housing assembly 31. The driver 33 is connected to the separation roller 32. The baffle plate 34 is connected to the bearing housing assembly 31.

[0056] The baffle plate 34 cooperates with the separating drum 32 to prevent light waste from splashing. The wind deflector 35 is connected to the baffle plate 34 by fasteners 36. The baffle plate 34 is located on both sides of the separating drum 32, and the wind deflector 35 is located above the separating drum 32. Since the airflow ejected from the jet assembly D is inclined upward, the height of the dust can be reduced by the obstruction of the airflow by the baffle plate 34 and the wind deflector 35, so that the dust or light waste can settle in the settling box E as soon as possible.

[0057] The baffle plate 34 includes a side sealing plate 34a and an arc-shaped baffle plate 34b. The side sealing plate 34a is located outside the axial end face of the separating roller 32 and is fixed to the bearing seat assembly 31. The arc-shaped baffle plate 34b is located above the separating roller 32 and is fixed to the side sealing plate 34a. The side sealing plate 34a has an arc-shaped mounting hole 34c. A fastener 36 passes through the arc-shaped mounting hole 34c and is connected to one end of the baffle plate 35. The other end of the baffle plate 35 is hinged to the side sealing plate 34a. This structure can adjust the angle of the baffle plate 35 according to the airflow angle of the jet assembly D, so that the baffle plate 35 can achieve the best blocking effect on the airflow.

[0058] The jet assembly D includes a blower 41 and a nozzle 42. The blower 41 is connected to the nozzle 42. The nozzle 42 is located below the first belt conveyor B. The nozzle 42 works with the separation assembly C to separate light waste from heavy waste. In the waste output from the first belt conveyor B, the heavy waste falls towards the first discharge port 11, and the light waste moves towards the separation assembly C under the action of the airflow ejected from the nozzle 42. Most of the light waste moves towards the settling box E with the separation drum 32 under the action of the rotation of the separation drum 32.

[0059] The jet assembly D also includes a first connecting seat 43, a second connecting seat 44, a third connecting seat 45, a fourth connecting seat 46, and an angle adjustment assembly 47. The first connecting seat 43 and the second connecting seat 44 are respectively fixed to the nozzle 42. The third connecting seat 45 and the fourth connecting seat 46 are respectively fixed to the first belt conveyor mechanism B. The third connecting seat 45 and the fourth connecting seat 46 are respectively fixed to the lower part of the mounting bracket 21. The first connecting seat 43 is hinged to the third connecting seat 45. The second connecting seat 44 is connected to one end of the angle adjustment assembly 47. The other end of the angle adjustment assembly 47 is connected to the fourth connecting seat 46. The fourth connecting seat 46 is provided with multiple mounting holes. The angle adjustment assembly 47 can be hinged to one of the mounting holes as needed, so that the angle of the nozzle 42 can be adjusted as needed.

[0060] The jet assembly D also includes a baffle 48, one end of which is fixed to the nozzle 42, and the other end of which extends toward the first discharge port 11. The baffle 48 can block light waste, greatly reducing the movement of light waste toward the first conveyor belt B, thereby reducing the accumulation of light waste on the inner surface of the belt in the first conveyor belt B.

[0061] The angle adjustment assembly 47 includes an intermediate connecting frame 47a and a screw 47b. The intermediate connecting frame 47a has threaded holes at both ends and a clearance hole 47c in its middle. Each end of the intermediate connecting frame 47a is threaded to one end of a screw 47b. The other end of each screw 47b is a fork-shaped portion 47d. The fork-shaped portion 47d of one screw 47b is hinged to a second connecting seat 44, and the fork-shaped portion of the other screw 47b is hinged to a fourth connecting seat 46. The angle of the nozzle 42 can also be adjusted via the angle adjustment assembly 47 itself.

[0062] The present invention also includes a second belt conveyor F and a scraper-type material separator G for separating light materials. The second belt conveyor F is located inside a settling tank E, and a second discharge port 51 is provided at the lower part of the settling tank E. One end of the second belt conveyor F is engaged with the output end of the separation component C, and the second belt conveyor F is matched with the second discharge port 51. The scraper-type material separator G is installed in the settling tank E and is located downstream of the second discharge port 51.

[0063] The second belt conveyor mechanism F includes a first mounting bracket 61, a first belt drive mechanism 62, a first inner scraper assembly 63 for cleaning the inner surface of the first belt drive mechanism 62, and a first outer scraper assembly 64 for cleaning the outer surface of the first belt drive mechanism 62. The first belt drive mechanism 62 is mounted on the first mounting bracket 61. The first inner scraper assembly 63 is fixed to the first mounting bracket 61 and mates with the inner surface of the first belt drive mechanism 62. The first outer scraper assembly 64 is fixed to the first mounting bracket 61 and mates with the outer surface of the first belt drive mechanism 62. The function of the first inner scraper assembly 63 is the same as that of the inner scraper assembly 23, and the function of the first outer scraper assembly 64 is the same as that of the outer scraper mechanism in the first belt conveyor mechanism B, which will not be described in detail here.

[0064] The second belt conveyor F also includes a chute 65, which is positioned above the first belt drive mechanism 62 and fixed to the first mounting bracket 61. The chute 65 cooperates with both the separation component C and the first belt drive mechanism 62. The chute 65 provides protection for the input end, front side, and rear side of the first belt drive mechanism 62, reducing waste scattering.

[0065] The scraper-type material separator G includes a housing 71, a rotor assembly 75, a rotating support assembly 76, a scraping assembly 77, and an air extraction assembly (not shown in the figure). The following is a detailed description of each part of the scraper-type material separator and the relationship between them.

[0066] The housing 71 is provided with an inlet 72, an outlet 73, and a ventilation hole 74. The housing 71 includes a lower housing 71a, an upper housing 71b, a lower support 71c, and an end plate 71d. After the upper housing 71b is connected to one end of the lower housing 71a, the inlet 72 is formed between the upper housing 71b and the lower housing 71a. The outlet 73 is located at the other end of the lower housing 71a. The ventilation hole 74 is provided on the upper housing 71b and is formed by punching holes in the upper housing 71b. The diameter of the ventilation hole 74 is preferably 4mm. The upper housing 71b is arc-shaped, and the ventilation holes 74 are evenly distributed on the entire arc-shaped surface of the upper housing 71b. Only a portion of the ventilation holes 74 are shown in the figure.

[0067] The lower support 71c is connected to the lower housing 71a. The lower support 71c is annular and fixed to other supporting parts, such as the frame. The lower support 71c is the main support of the entire scraping material separator. After the end plate 71d mates with the axial end faces of the lower housing 71a and the upper housing 71b, the end plate 71d is fixed to the lower housing 71a and the upper housing 71b respectively. The end plate 71d is provided with a clearance hole 71e for mates with the rotor assembly 75. The rotating support assembly 76 is fixed to the end plate 71d.

[0068] The lower housing 71a includes a lower arc-shaped seat 71a1, a lower cylindrical body 71a2, and a side support plate 71a3. The arc of the lower arc-shaped seat 71a1 is preferably 180°, meaning it is semi-circular. The lower arc-shaped seat 71a1 is fixed to the lower cylindrical body 71a2. The lower cylindrical body 71a2 consists of a conical cylindrical body and a cylindrical body. The conical cylindrical body is located between the lower arc-shaped seat 71a1 and the cylindrical body. The volume of the conical cylindrical body is smaller than that of the cylindrical body, making it easier to install in confined spaces. The side support plate 71a3 is fixed to the lower arc-shaped seat 71a1 and can be fixed to other supporting parts, such as the frame, for better support of the lower housing 71a. The lower arc-shaped seat 71a1 has an opening 71a4 that communicates with the lower cylindrical body 71a2. The lower arc-shaped seat 71a1 is fixed to the upper housing 71b.

[0069] The rotor assembly 75 is rotatably engaged with the housing 71. The rotor assembly 75 includes a disc-shaped component 75a, a frame 75b, and a drive unit. The disc-shaped component 75a is rotatably engaged with the housing 71, and the disc-shaped component 75a is clearance-fitted with the clearance hole 71e in the housing 71, so that the disc-shaped component 75a can rotate relative to the housing 71. The two ends of the frame 75b are respectively fixed to the disc-shaped component 75a. The frame 75b is a cylindrical component. The frame 75b can be a hollow cylinder or a hollow prism. In this embodiment, the frame 75b is preferably a hollow hexagonal prism.

[0070] The frame 75b has an assembly groove 75c on its circumferential surface. One end of the scraping component 77 engages with the assembly groove 75c. The drive unit is fixed to the disc-shaped component 75a and / or the frame 75b.

[0071] The drive unit includes a geared motor 75e, a rotating shaft 75f, and a connecting sleeve 75g. The geared motor 75e is fixed to the rotating shaft 75f. The rotating shaft 75f passes through the disc-shaped component 75a and the frame 75b. The connecting sleeve 75g is fitted onto the rotating shaft 75f. The connecting sleeve 75g is an open sleeve, and bolts are used to lock the open sleeve onto the rotating shaft 75f, so that the connecting sleeve 75g and the rotating shaft 75f are fastened together. The connecting sleeve 75g is also fastened to the disc-shaped component 75a by bolts. Thus, when the geared motor 75e outputs torque, it drives the rotating shaft 75f, the disc-shaped component 75a, and the frame 75b to rotate.

[0072] The rotor assembly 75 also includes a limiting plate 75h, which is fixed to the disc-shaped component 75a and provides axial limitation for the scraping assembly 77.

[0073] The rotating support assembly 76 is fixed to the housing 71, and the rotor assembly 75 passes through the housing 71 and is connected to the rotating support assembly 76. The rotating support assembly 76 consists of a support frame and bearings. The bearings are mounted on the support frame, and both ends of the support frame are fixed to the end plates 71d respectively, leaving a gap between the support frame and the disc-shaped component 75a. The end of the rotating shaft 75f is connected to the bearing in the rotating support assembly 76.

[0074] The scraping assembly 77 cooperates with the rotor assembly 75. The scraping assembly 77 is located within the housing 71 and adheres to the inner wall surface of the housing 71. The scraping assembly 77 includes a scraping component 77a that adheres to the inner wall surface of the housing 71, a support component, and an elastic colloid 77b that cooperates with the rotor assembly 75. The scraping component 77a is a scraper and / or a stainless steel strip brush. In this embodiment, the scraping component 77a consists of a PV scraper and a stainless steel strip, which are arranged alternately along the circumference. The PV scraper helps to scrape dirt and light debris towards the opening 71a4, while the stainless steel strip helps to clean the ventilation hole 74, reducing the chance of blockage. The elastic colloid 77b cooperates with the mounting groove 75c.

[0075] One end of the supporting component is fixed to the scraping component 77a. A groove is provided on the elastic colloid 77b, and the other end of the supporting component engages with the groove on the elastic colloid 77b. The supporting component includes a tubular component 77c, a supporting plate 77d, a supporting portion 77e, and a protruding strip 77f. One end of the supporting plate 77d is fixed to the tubular component 77c, and the supporting portion 77e is fixed to the other end of the supporting plate 77d. An angle exists between the supporting portion 77e and the supporting plate 77d, and the supporting portion 77e is inclined relative to the supporting plate 77d. The scraping component 77a is fixed to the supporting portion 77e, and one end of the protruding strip 77f is fixed to the tubular component 77c. The other end of the protruding strip 77f engages with the groove on the elastic colloid 77b.

[0076] The working process of the scraper-type material separator is as follows: Light waste enters the housing 71 through the inlet 72. The negative pressure generated by the suction component forces the airflow and most fine particles such as dust through the vent. Light materials (plastics, foam, etc.) that cannot pass through the vent will adhere to the inner walls of the lower housing 71a and the upper housing 71b, as will dust that does not pass through the ventilation hole 74. The geared motor 75e is then activated. The output torque drives the rotating shaft 75f to rotate. The rotating shaft 75f drives the disc-shaped component 75a to rotate through the connecting sleeve 75g, which in turn causes the frame 75b, which is fixed to the disc-shaped component 75a, to rotate. The scraping component 77, which is mounted on the frame 75b, rotates with the frame 75b. The scraping component 77 scrapes the dirt of light materials adhering to the inner wall surfaces of the lower shell 71a and the upper shell 71b towards the opening 71a4. This material is then output to the outside of the scraping-type material separator through the lower cylinder 71a2 and the output port 73. As can be seen from the above, after the light materials are separated by the scraping-type material separator, it is avoided that the light materials will clog the air extraction component.

[0077] Since the support part 77e is inclined relative to the support plate 77d, when the frame 75b is stationary and the support component as a whole rotates, the gap between the scraping component 77 and the inner wall of the housing 71 can be scraped. Therefore, when the scraping component 77a is worn, the gap between the scraping component 77a and the inner wall of the housing 71 becomes larger and the scraping effect is reduced. This problem can be solved by adjusting the scraping component 77.

[0078] Based on the aforementioned issue of adjustable gap between scraping component 77a and inner wall of housing 71, this embodiment provides an adjustment component 78 for adjusting the gap between scraping component 77 and inner wall of housing 71. The adjustment component 78 is mounted on rotor assembly 75 and fixed to scraping component 77.

[0079] The adjusting assembly 78 includes a connecting shaft 78a, a bushing 78b, a connecting arm 78c, an adjusting seat 78d, a screw 78e, and an adjusting nut 78f. One end of the connecting shaft 78a is fixed to the scraping assembly 77, and the other end of the connecting shaft 78a passes through the rotor assembly 75 and is located outside the housing 71. That is, one end of the connecting shaft 78a is connected to the tubular component 77c in the scraping assembly 77, and the other end of the connecting shaft 78a passes through the disc-shaped component 75a and is located outside the housing 71. The bushing 78b is fitted onto the other end of the connecting shaft 78a and is fixed to the connecting shaft 78a. The bushing 78b is a rubber sleeve, and the bushing 78b is interference-fitted with the connecting shaft 78a. The connecting arm 78c is fixed to the bushing 78b. The bushing 78b is prism-shaped (regular prism), and the inner hole of the connecting arm 78c is polygonal (quadrilateral). After the connecting arm 78c is fitted onto the bushing 78b, it forms a circumferential fixation.

[0080] The adjusting seat 78d is fixed to the rotor assembly 75; the adjusting seat 78d is fixed on the axial end face of the disc-shaped component 75a in the rotor assembly 75, one end of the screw 78e is connected to the connecting arm 78c, the other end of the screw 78e passes through the adjusting seat 78d, and the adjusting nut 78f is threadedly connected to the other end of the screw 78e.

[0081] The adjusting assembly 78 also includes a pointer 78g, which is fixed to the connecting shaft 78a; the end face of the rotor assembly 75 is provided with an adjusting scale 75d for cooperating with the pointer 78g. The adjusting assembly 78 also includes an axial limiting sleeve 78h, which is fixed to the bushing 78b and forms an axial limit on the connecting arm 78c.

[0082] When it is necessary to adjust the gap between the scraping component 77a and the inner wall of the housing 71, rotate the adjusting nut 78f to make the screw 78e move axially along the adjusting seat 78d. The adjusting seat 78d drives the connecting arm 78c to rotate, the connecting arm 78c drives the bushing 78b to rotate, the bushing 78b drives the connecting shaft 78a and the pointer 78g to rotate, and the connecting shaft 78a drives the tubular component 77c to rotate, thereby causing the scraping component 77 to rotate relative to the housing 71, which in turn changes the gap between the scraping component 77a and the inner wall of the housing 71.

[0083] The input end of the air extraction assembly mates with the ventilation hole 74. The air extraction assembly can consist of an air extractor and an air hood assembly. The air hood is connected to the air extractor and mates with the ventilation hole 74. The negative pressure generated by the air extraction assembly causes the airflow inside the housing 71 to flow through the ventilation hole 74 to a designated location, which can be a device such as a dust collector.

[0084] Since the ventilation hole 74 may become blocked or the airflow may be obstructed, in order to maintain the air extraction efficiency of the air extraction assembly, this embodiment also includes a purging assembly for reciprocatingly purging the ventilation hole 74 on the housing 71. The purging assembly includes a purging bracket 79, a jet pipe 80, a reciprocating drive unit, and the jet pipe 80 is fixed to the purging bracket 79. The jet pipe 80 is connected to an air supply unit 80a, and the reciprocating drive unit is connected to the purging bracket 79.

[0085] The reciprocating drive unit includes a first driver 81 that outputs torque, a drive arm 82, a connecting rod 83, and a slide rail 84. The drive arm 82 is connected to the torque output end of the first driver 81. The connecting rod 83 is hinged to the drive arm 82 and is also connected to the purge bracket 79. The connecting rod 83 or the purge bracket 79 is slidably engaged with the slide rail 84.

[0086] When it is necessary to purge the ventilation hole 74, the air supply unit 80a is turned on, and compressed gas is ejected from the jet pipe 80. The first driver 81 outputs torque, and the first driver 81 drives the drive arm 82 to rotate. The drive arm 82 drives the connecting rod 83 to swing back and forth. The connecting rod 83 drives the purging bracket 79 to move back and forth along the slide rail 84, thereby purging the ventilation hole 74 back and forth and blowing the dirt blocking the ventilation hole 74 into the housing 71.

[0087] The above-disclosed embodiments are merely preferred embodiments of this application and should not be construed as limiting the scope of the invention. Those skilled in the art will understand that implementing all or part of the structures of the above embodiments and making equivalent changes in accordance with the claims of this application are still within the scope of this application.

Claims

1. A box-type pneumatic sorting device for solid waste treatment, comprising a front box (A), a first belt conveyor (B), a separation component (C), an air jet assembly (D), and a settling box (E), wherein the first belt conveyor (B), the separation component (C), and the air jet assembly (D) are all installed inside the front box (A), the settling box (E) is connected to the front box (A), the settling box (E) is located downstream of the separation component (C), the front box (A) is provided with a first discharge port (11), which is located below the output end of the first belt conveyor (B), the separation component (C) is a rotary separation component, the separation component (C) is located downstream of the first belt conveyor (B), the air jet assembly (D) includes a blower (41) and a nozzle (42), the blower (41) is connected to the nozzle (42), the nozzle (42) is located below the first belt conveyor (B), the nozzle (42) cooperates with the separation component (C) to separate light waste from heavy waste, characterized in that, It also includes a second belt conveyor (F), a scraper-type material separator (G) for separating light materials, and the jet assembly (D) also includes a first connecting seat (43), a second connecting seat (44), a third connecting seat (45), a fourth connecting seat (46), and an angle adjustment assembly (47). The first connecting seat (43) and the second connecting seat (44) are respectively fixed to the nozzle (42), the third connecting seat (45) and the fourth connecting seat (46) are respectively fixed to the first belt conveyor (B), the first connecting seat (43) and the third connecting seat (45) are hinged, the second connecting seat (44) is connected to one end of the angle adjustment assembly (47), and the other end of the angle adjustment assembly (47) is connected to the fourth connecting seat (46). The second belt conveyor (F) is located inside the settling tank (E). The settling tank (E) has a second discharge port (51) at its lower part. One end of the second belt conveyor (F) is connected to the output end of the separation component (C). The second belt conveyor (F) is connected to the second discharge port (51). The scraper-type material separator (G) is installed in the settling tank (E) and is located downstream of the second discharge port (51). The scraper-type material separator (G) includes a housing (71), a rotor assembly (75), a rotating support assembly (76), a scraping assembly (77), an air extraction assembly, and a purging assembly that reciprocates to purify the ventilation holes (74) on the housing (71). The housing (71) is provided with an inlet (72), an outlet (73), and a ventilation hole (74). The rotor assembly (75) is rotatably connected to the housing (71). The rotating support assembly (76) is fixed to the housing (71). The rotor assembly (75) passes through the housing (71) and is connected to the rotating support assembly (76). The scraping assembly (77) is connected to the rotor assembly (75). The scraping assembly (77) is located inside the housing (71) and is in contact with the inner wall of the housing (71). The inlet of the air extraction assembly is connected to the ventilation hole (74). It also includes an adjustment assembly (78) for adjusting the gap between the scraping assembly (77) and the inner wall of the housing (71), the adjustment assembly (78) being mounted on the rotor assembly (75) and fixed to the scraping assembly (77); The rotor assembly (75) includes a disc-shaped component (75a), a frame (75b), and a drive unit, wherein the disc-shaped component (75a) is rotatably engaged with the housing (71); The scraping assembly (77) includes a scraping component (77a) that fits against the inner wall surface of the housing (71), a support component, and an elastic colloid (77b) that engages with the rotor assembly (75). One end of the support component is fixed to the scraping component (77a), and the elastic colloid (77b) is provided with a groove. The other end of the support component is engaged with the groove on the elastic colloid (77b). The support component includes a tubular component (77c). The adjusting assembly (78) includes a connecting shaft (78a), a bushing (78b), a connecting arm (78c), an adjusting seat (78d), a screw (78e), and an adjusting nut (78f). One end of the connecting shaft (78a) is fixed to the scraping assembly (77), and the other end of the connecting shaft (78a) passes through the rotor assembly (75) and is located outside the housing (71). One end of the connecting shaft (78a) is fixed to the tubular component (77c) in the scraping assembly (77), and the connecting shaft (78a)... The other end passes through the disc-shaped component (75a) and is located outside the housing (71). The bushing (78b) is fitted onto the other end of the connecting shaft (78a) and fixed to the connecting shaft (78a). The bushing (78b) is a rubber sleeve. The bushing (78b) and the connecting shaft (78a) are interference-fitted. The connecting arm (78c) is fixed to the bushing (78b). The bushing (78b) is prismatic. The inner hole of the connecting arm (78c) is polygonal. After the connecting arm (78c) is fitted onto the bushing (78b), it forms a circumferential fixation. The adjusting seat (78d) is fixed to the rotor assembly (75); the adjusting seat (78d) is fixed on the axial end face of the disc-shaped part (75a) in the rotor assembly (75), one end of the screw (78e) is connected to the connecting arm (78c), the other end of the screw (78e) passes through the adjusting seat (78d), and the adjusting nut (78f) is threadedly connected to the other end of the screw (78e).

2. The box-type pneumatic sorting equipment for solid waste treatment according to claim 1, characterized in that, The jet assembly (D) also includes a baffle (48), one end of which is fixed to the nozzle (42), and the other end of which extends toward the first discharge port (11).

3. The box-type pneumatic sorting equipment for solid waste treatment according to claim 1 or 2, characterized in that, The angle adjustment assembly (47) includes an intermediate connecting frame (47a) and a threaded rod (47b). The intermediate connecting frame (47a) has threaded holes at both ends and a clearance hole (47c) in the middle. The two ends of the intermediate connecting frame (47a) are threaded to one end of a threaded rod (47b). The other end of each threaded rod (47b) is a fork-shaped part (47d). The fork-shaped part (47d) of one threaded rod (47b) is hinged to the second connecting seat (44), and the fork-shaped part of the other threaded rod (47b) is hinged to the fourth connecting seat (46).

4. The box-type pneumatic sorting equipment for solid waste treatment according to claim 1, characterized in that, The first belt conveyor mechanism (B) includes a mounting bracket (21), a belt drive mechanism (22), and an inner scraper assembly (23) for cleaning the inner surface of the belt drive mechanism (22). The belt drive mechanism (22) is mounted on the mounting bracket (21), the inner scraper assembly (23) is fixed to the mounting bracket (21), and the inner scraper assembly (23) is engaged with the inner surface of the belt drive mechanism (22).

5. The box-type pneumatic sorting equipment for solid waste treatment according to claim 4, characterized in that, The inner scraper assembly (23) includes an inner scraper bracket (23a), an inner scraper blade (23b), and an elastic connecting plate (23c). The inner scraper bracket (23a) is polygonal, the inner scraper blade (23b) is fixed to the inner scraper bracket (23a), one end of the elastic connecting plate (23c) is fixed to the inner scraper bracket (23a), and the other end of the elastic connecting plate (23c) is fixed to the mounting bracket (21).

6. The box-type pneumatic sorting equipment for solid waste treatment according to claim 4, characterized in that, The first belt conveyor (B) also includes a buffer bed (24), which is fixed to the mounting bracket (21). The buffer bed (24) is located inside the belt drive mechanism (22) and cooperates with the inner surface of the belt drive mechanism (22).

7. The box-type pneumatic sorting equipment for solid waste treatment according to claim 4, characterized in that, The first belt conveyor (B) further includes an external scraping mechanism for cleaning the outer surface of the belt drive mechanism (22). The external scraping mechanism includes a knife holder (25) and an external scraper (26). The knife holder (25) is located at the end of the belt drive mechanism (22) and is fixed to the mounting bracket (21). The external scraper (26) is fixed to the knife holder (25).

8. The box-type pneumatic sorting equipment for solid waste treatment according to claim 1, characterized in that, The separation assembly (C) includes a bearing housing assembly (31), a separation roller (32), a driver (33), a baffle plate (34), a baffle plate (35), and fasteners (36). The two ends of the separation roller (32) are connected to the bearing housing assembly (31), the driver (33) is connected to the separation roller (32), the baffle plate (34) is connected to the bearing housing assembly (31), the baffle plate (34) cooperates with the separation roller (32) to prevent light waste from splashing, and the baffle plate (35) is connected to the baffle plate (34) by fasteners (36).

9. The box-type pneumatic sorting equipment for solid waste treatment according to claim 8, characterized in that, The baffle plate (34) includes a side sealing plate (34a) and an arc-shaped baffle plate (34b). The side sealing plate (34a) is located outside the axial end face of the separating drum (32) and is fixed to the bearing seat assembly (31). The arc-shaped baffle plate (34b) is located above the separating drum (32) and is fixed to the side sealing plate (34a). The side sealing plate (34a) is provided with an arc-shaped mounting hole (34c). The fastener (36) passes through the arc-shaped mounting hole (34c) and is connected to one end of the wind deflector (35). The other end of the wind deflector (35) is hinged to the side sealing plate (34a).

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