Dust suppression hopper car loader with flexible turning plate system

Abstract

The invention provides a dust suppression hopper car loader with a flexible turning plate system, which solves the problems of unloading isolation and the like, and comprises an upper hopper and a lower hopper, a flexible turning plate mechanism is mounted between the upper hopper and the lower hopper, an isolation door is mounted at the upper end of the flexible turning plate mechanism, and the upper hopper is provided with a dust collection mechanism. The device has the advantages of good isolation effect, high dust recovery rate and the like.

Description

Technical Field

[0001] The invention belongs to the technical field of material conveying equipment, and in particular relates to a dust suppression hopper loader with a flexible flap system. Background Art

[0002] A common problem in current ship unloading operations has attracted widespread attention: severe dust spillage during the release of material from the grab bucket, directly contributing to environmental pollution in the dock area. To effectively reduce this dust spillage, measures have been taken, such as increasing the power of dust collectors and fans. However, while this approach significantly increases the power of the equipment, it also introduces new challenges: the equipment becomes bulky and heavy. Despite this enormous power, the actual dust collection effect is suboptimal, creating a dilemma in resolving the issue.

[0003] To address the shortcomings of existing technologies, researchers have conducted extensive research and proposed various solutions. For example, a Chinese patent document discloses a dust suppression filter for flour selection [202420644463.0], which includes a filter box, a bracket externally supported at the bottom of the filter box, a discharge port connected to the bottom of the filter box, a feed hopper at the top of the filter box, dust suppression assemblies mounted on both sides of the feed hopper, a discharge assembly connected to the two dust suppression assemblies, a filter cartridge mounted in the filter box, a flip assembly mounted in the filter cartridge, a belt connecting the flip assembly and the discharge assembly, mounting slots on both sides of the feed hopper, and a dust suppression assembly in each mounting slot.

[0004] The above solution solves the problem of dust overflow to a certain extent, but the solution still has many shortcomings, such as poor isolation effect between the upper and lower hoppers during grab unloading. Summary of the Invention

[0005] The object of the present invention is to provide a dust suppression hopper with a flexible flap system which has a reasonable design and good isolation effect in order to solve the above problems.

[0006] Another object of the present invention is to address the above-mentioned problem and provide a dust suppression hopper loader with a flexible flap system to prevent dust from overflowing.

[0007] To achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a dust suppression hopper with a flexible flap system, comprising an upper hopper and a lower hopper, a flexible flap mechanism is installed between the upper hopper and the lower hopper, an isolation door is installed at the upper end of the flexible flap mechanism, and the upper hopper is equipped with a dust collecting mechanism.

[0008] In the above-mentioned dust suppression hopper with a flexible flap system, the upper hopper includes a feed barrel, the lower end of the feed barrel is connected to a feed shell, a feed cavity for assembling the flexible flap mechanism is provided in the feed shell, an isolation door is installed at the lower end of the feed shell and engaged with the flexible flap mechanism, and the dust collecting mechanism surrounds the feed barrel circumference and is connected to the feed shell.

[0009] In the above-mentioned dust suppression hopper with a flexible flap system, the flexible flap mechanism includes gratings arranged equidistantly in the transverse direction, and flaps arranged equidistantly in the longitudinal direction are arranged between adjacent gratings, and the flaps are symmetrically arranged relative to the middle of the gratings; the flaps are inclined and the upper ends are respectively connected to drooping curtain pieces, and the curtain pieces connected by the flaps are opposite to the adjacent flaps and close the channels between the flaps.

[0010] In the above-mentioned dust suppression hopper with a flexible flap system, the grid plate includes a main plate body and a sub-plate body telescopically connected along the longitudinal interval. The main plate body or the sub-plate body is provided with a fixing hole rotatably connected to the rotating shaft at the lower end of the flap. The adjacent sub-plate bodies or main plates are provided with movable grooves rotatably and slidingly connected to the rotating shaft at the upper end of the flap. The central axis of the movable groove on the same main plate body or sub-plate body coincides with the center of the fixing hole. The main plate body and the sub-plate body are slidably installed on the support rod extending along the longitudinal direction. The support rod is arranged in parallel in the support frame. A synchronous adjustment component is provided between the flap and the support frame.

[0011] In the above-mentioned dust suppression hopper with a flexible flap system, the synchronous adjustment component includes an adjusting motor installed on the supporting frame, the output end of the adjusting motor is connected to a vertically arranged adjusting screw, the adjusting screw is threadably connected to a lifting seat, and a fixed seat is installed on the supporting frame, which is consistent with the lifting seat and the central axis of the adjusting screw; the lifting seat is connected to a lifting plate extending in the longitudinal direction, and a linkage groove is opened on the lifting plate and is slidably connected to the upper end rotating shaft of the flap, and the linkage groove and the movable groove on the main plate body or the auxiliary plate body are cross-arranged; the fixed seat is connected to a fixed plate extending in the longitudinal direction, and a limit groove is opened on the fixed plate and is slidably connected to the lower end rotating shaft of the flap; a telescopic cover plate is connected between the two ends of the supporting frame and the main plate body or the auxiliary plate body, and a guide plate covering the upper part of the symmetrically arranged flaps is connected between the middle part of the lifting plate, and the guide plate is connected to a curtain piece opposite to the flap.

[0012] In the above-mentioned dust suppression hopper with a flexible flap system, the dust collecting mechanism includes a dust collecting tube arranged circumferentially along the feed tube, the negative pressure chamber inside the dust collecting tube is connected to the inside of the feed tube, and a collecting chamber circumferentially surrounding the feed chamber is provided in the feed shell, the upper end of the collecting chamber is connected to the negative pressure chamber, and the lower end of the collecting chamber is connected to the lower hopper and a discharge door is installed therebetween; a negative pressure fan is installed at the upper end of the dust collecting tube, and the suction end of the negative pressure fan is connected to a negative pressure pipe, which extends vertically downward into the negative pressure chamber.

[0013] In the above-mentioned dust suppression hopper with a flexible flap system, the lower hopper is conical, and a rod gate is installed at the outlet of the lower end of the lower hopper. The rod gate is connected to the pneumatic gate valve through a transmission pipe.

[0014] A dust suppression hopper loader with a flexible flap system includes a frame, a dust suppression hopper with a flexible flap system is installed on the top of the frame, a belt conveyor is installed on the frame, and a telescopic chute is connected to the output end of the belt conveyor; the frame has an extension platform extending outward and for installing the belt conveyor and the telescopic chute.

[0015] In the above-mentioned dust suppression hopper loader with a flexible flap system, a single bag dust collector is installed on the frame, and the single bag dust collector is connected to the belt conveyor and the telescopic chute.

[0016] In the above-mentioned dust suppression hopper loader with a flexible flap system, the lower end of the frame is pressed against a pressure guide rail installed on the ground through a pressure roller; the frame is equipped with a mobile drive system; and the frame is fixedly connected to the ground through a cable.

[0017] Compared with the existing technology, the advantages of the present invention are: it adopts an upper and lower hopper structure, and the material grabbed by the grab bucket is unloaded in the upper hopper. The dust generated during the unloading process is effectively treated by the dust collecting mechanism arranged around the upper hopper, which can not only effectively prevent dust overflow, but also protect the environment from pollution, ensuring the cleanliness and safety of the work site; the flexible flap mechanism enables the material to pass quickly and smoothly with the help of gravity, and at the same time can effectively seal most of the dust and air mixture inside the lower hopper, thereby ensuring the cleanliness of the working environment and the purity of the material; the isolation door optimizes the separation process, greatly reduces the processing capacity of the dust collecting mechanism and the dust concentration of the gas, thereby reducing the power consumption of the whole machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the vehicle loader of the present invention; Figure 2 It is a structural schematic diagram of the dust suppression hopper of the present invention; Figure 3 It is a structural schematic diagram of the flexible flap mechanism of the present invention; Figure 4 It is a partial schematic diagram of the flexible flap mechanism of the present invention; Figure 5 is a partial cross-sectional view of the flexible flap mechanism of the present invention; In the figure, the upper hopper 1, the feed barrel 11, the feed shell 12, the feed chamber 13, the telescopic cover 14, the guide plate 15, the lower hopper 2, the rod gate 21, the transmission pipe 22, the pneumatic gate valve 23, the flexible flap mechanism 3, the grid plate 31, the flap 32, the curtain 33, the main plate 34, the auxiliary plate 35, the fixing hole 36, the movable groove 37, the support rod 38, the support frame 39, the isolation door 4, the dust collecting mechanism 5, the dust collecting barrel 51, and the collection chamber 52 , negative pressure chamber 53, discharge door 54, negative pressure fan 55, negative pressure pipe 56, synchronous adjustment component 6, adjustment motor 61, adjustment screw 62, lifting seat 63, fixed seat 64, lifting plate 65, linkage slot 66, fixed plate 67, limit slot 68, frame 7, belt conveyor 71, telescopic chute 72, extension platform 73, single bag dust collector 74, pressure roller 75, pressure guide rail 76, mobile drive system 77, cable 78. DETAILED DESCRIPTION

[0019] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] like Figure 1-5 As shown, a dust suppression hopper with a flexible flap system includes an upper hopper 1 and a lower hopper 2. The upper hopper 1 is responsible for receiving and temporarily storing materials and initially controlling dust generated during discharge through a dust collection mechanism 5. The lower hopper 2 is used to guide and discharge the final materials. A flexible flap mechanism 3 is installed between the upper and lower hoppers 1 and 2. It automatically opens when materials flow through and automatically closes when there is no material, effectively blocking dust from escaping from the bottom. An isolation door 4 is installed at the top of the flexible flap mechanism 3. This isolation door 4 can be closed manually or automatically during equipment maintenance or long-term shutdown, forming a physical partition, further enhancing sealing and ensuring operational safety. The upper hopper 1 is equipped with a dust collection mechanism 5 to suction and collect generated dust.

[0021] Specifically, the upper hopper 1 includes a feed barrel 11, connected to a feed housing 12 at its lower end. Within the housing 12 is a feed chamber 13 for the flexible flap mechanism 3, providing both installation and movement space for the flap mechanism. An isolation door 4 is mounted at the lower end of the housing 12 and engages with the flexible flap mechanism 3. A dust collection mechanism 5 circumferentially surrounds the feed barrel 11 and communicates with the housing 12. This wraparound layout ensures a uniform distribution of the negative suction pressure field, effectively capturing dust escaping from the feed port.

[0022] Specifically, the flexible flap mechanism 3 comprises equidistantly spaced grid plates 31 in the transverse direction, serving as the primary support structure. Between adjacent grid plates 31 are equidistantly spaced flaps 32 in the longitudinal direction. These flaps 32 are symmetrically arranged relative to the center of the grid plates 31, guiding the material as it falls. The flaps 32 are tilted, and their upper ends are connected to drooping curtains 33 made of a flexible material. These curtains 33, when connected to each flap 32, oppose adjacent flaps 32 and close the passageway between them. When material slides down the flaps 32, the curtains 33 automatically open. When there is no more material, the flaps 32 fall back, and the curtains 33 droop under their own weight, fitting tightly against the adjacent flaps 32 to form a flexible seal, completely blocking the dust passageway.

[0023] Furthermore, in order to adapt to different material discharge amounts, the grid plate 31 adopts a movable structure, specifically including a main plate body 34 and a sub-plate body 35 that are telescopically connected along the longitudinal interval. The main plate body 34 or the sub-plate body 35 is provided with a fixed hole 36 that is rotatably connected to the lower end of the flap 32 and serves as a fixed rotation fulcrum for the flap 32. The adjacent sub-plate body 35 or the main plate body 34 is provided with a movable groove 37 that is rotatably and slidably connected to the upper end of the flap 32. The movable groove 37 allows the upper end of the flap 32 to slide in the groove, and the rotation center of the flap 32 is not fixed. When the synchronous adjustment component 6 is actuated, the inclination angle of all flaps 32 can be changed as a whole by changing the relative position of the movable groove 37 and the rotation axis. The central axis of the movable groove 37 on the same main plate body 34 or sub-plate body 35 coincides with the center of the fixed hole 36, ensuring that when the angle of the flap 32 is adjusted, its movement trajectory is accurate and consistent. The main plate 34 and auxiliary plate 35 are slidably mounted on longitudinally extending support rods 38. The support rods 38 are arranged in pairs, with a gap between them to prevent the longitudinal movement of the upper and lower pivots of the flaps 32. The support rods 38 are arranged parallel to each other within a support frame 39. A synchronous adjustment assembly 6 is positioned between the flaps 32 and the support frame 39, ensuring the precise adjustment of the tilt angle of all flaps 32.

[0024] Furthermore, the synchronous adjustment assembly 6 includes an adjustment motor 61 mounted on the support frame 39. The output ends of the different adjustment motors 61 are also connected by a synchronous rod to ensure drive consistency. The output end of the adjustment motor 61 is connected to a vertically arranged adjustment screw 62, and the adjustment screw 62 is threadedly connected to a lifting seat 63, thereby converting the rotational motion of the adjustment motor 61 into a precise linear lifting motion of the lifting seat 63. A fixed seat 64 is installed on the support frame 39, which is aligned with the central axis of the lifting seat 63 and the adjustment screw 62 to provide guidance and stability. The lifting seat 63 is connected to a lifting plate 65 extending longitudinally. The lifting plate 65 has a linkage groove 66 that is slidably connected to the upper end shaft of the flap 32. When the lifting plate 65 moves up and down, the linkage groove 66 pushes the upper end shafts of all flaps 32 to move up and down synchronously. The linkage slot 66 and the movable slot 37 on the main plate body 34 or the auxiliary plate body 35 are arranged in a cross pattern. This cross layout makes the movement of the upper end of the flap 32 a combination of the vertical movement provided by the lifting plate 65 and the horizontal movement allowed by the movable slot 37, ultimately forcing the flap 32 to rotate around its lower end fixing hole 36, thereby achieving an angle change; the fixed seat 64 is connected to a fixed plate 67 extending in the longitudinal direction, and the fixed plate 67 is provided with a limit slot 68 slidably connected to the rotating shaft of the lower end of the flap 32. The limit slot 68 constrains the position of the rotating shaft of the lower end of the flap 32 to ensure that it moves along a preset trajectory, and cooperates with the linkage slot 66 to precisely control the movement of all flaps 32; a telescopic cover plate 14 is connected between the two ends of the support frame 39 and the main plate body 34 or the auxiliary plate body 35 to close the channel between them, ensuring the closure and isolation of the rest of the grid plate 31, and a guide plate 15 covering the upper part of the symmetrically arranged flaps 32 is connected between the middle part of the lifting plate 65, and the guide plate 15 is connected to the curtain piece 33 opposite to the flap 32. The guide plate 15 covers the middle part of the grid plate 31 and together with the flap 32 and the curtain piece 33 forms a flexible sealing system without dead angles.

[0025] In addition, the dust collection mechanism 5 includes a dust collection tube 51 arranged circumferentially around the feed tube 11. The negative pressure chamber 53 inside the dust collection tube 51 is connected to the interior of the feed tube 11, thus forming a uniform negative pressure zone around the feed tube 11. A collection chamber 52 is provided in the feed shell 12, surrounding the feed chamber 13. The upper end of the collection chamber 52 is connected to the negative pressure chamber 53, and the lower end of the collection chamber 52 is connected to the lower hopper 2, with a discharge door 54 installed therebetween. The collection chamber 52 is used to collect coarser dust particles that are not directly extracted by the negative pressure chamber 53 and settle. The discharge door 54 can be opened periodically or automatically to discharge the collected dust back into the lower hopper 2, thereby recycling the dust and preventing clogging of the collection chamber 52. A negative pressure fan 55 is installed at the upper end of the dust collecting tube 51, and the suction end of the negative pressure fan 55 is connected to a negative pressure pipe 56. The negative pressure pipe 56 extends vertically downward into the negative pressure chamber 53, so that the suction port of the negative pressure pipe 56 is located at the lowest point of the system, which can more effectively suck dust and prevent dust accumulation in the negative pressure pipe 56.

[0026] The lower hopper 2 is conical in shape, facilitating the concentrated drop of materials. A grating gate 21 is installed at the lower outlet of the hopper 2. Adjusting the gap between the gratings controls the discharge flow rate and column shape. This gate 21 is connected to a pneumatic gate valve 23 via a transfer pipe 22, serving as the final switch. This provides rapid, leak-tight shutoff, facilitating pauses and transitions in loading operations.

[0027] A dust suppression hopper loader with a flexible flap system includes a frame 7, a dust suppression hopper with a flexible flap system mounted on top of the frame 7, and a belt conveyor 71 mounted on the frame 7 to continuously discharge material from the lower end of the dust suppression hopper. A telescopic chute 72 is connected to the output end of the belt conveyor 71 to lower the discharge height, reduce material impact and dust generation, and accommodate vehicles of varying heights. The frame 7 has an outwardly extending extension platform 73 for mounting the belt conveyor 71 and the telescopic chute 72. The lower portion of the extension platform 73 provides a stable parking space for vehicles and can be used for inspection and maintenance.

[0028] It can be seen that a single-machine bag dust collector 74 is installed on the frame 7. The independent single-machine bag dust collector 74 is connected to the belt conveyor 71 and the telescopic chute 72. It serves as a secondary dust removal system to collect dust generated at the transfer point of the belt conveyor 71, the outlet of the telescopic chute 72 and other parts, ensuring that the entire machine meets more stringent environmental protection standards.

[0029] Preferably, the lower end of the frame 7 is pressed against a ground-mounted pressure rail 76 via pressure rollers 75, allowing the entire loader to move along the track, enabling continuous loading of trains or long lines of cars. The frame 7 is equipped with a mobile drive system 77, typically using a belt transmission to provide driving force, but other drive structures are also possible. The frame 7 is fixed to the ground via a cable 78, preventing the equipment from moving under the reaction force of loading, ensuring safe operation and accurate positioning.

[0030] Example 1 In this embodiment, material continuously falls from the upper hopper 1, passes through the flexible flap mechanism 3, and enters the lower hopper 2 for final discharge. Material enters through the feed barrel 11 and falls into the feed chamber 13. The material's gravity acts on the flap 32 of the flexible flap mechanism 3, causing it to slide downward. This force pushes open the flap 32 and, simultaneously, the flexible curtain 33 attached to its upper end. When feeding is temporarily stopped, the material acting on the flap 32 and curtain 33 disappears. The curtain 33, relying solely on its own gravity, droops tightly against the adjacent flap 32, forming a flexible seal that completely blocks the dust passage and prevents dust from escaping the lower hopper 2.

[0031] Furthermore, during this process, the dust collection mechanism 5 continues to operate. The negative pressure fan 55 runs, creating a uniform negative pressure field in the negative pressure chamber 53 of the dust collection cylinder 51 and the collection chamber 52 of the feed shell 12. Most of the dust generated during unloading is sucked in and captured directly at the source.

[0032] Example 2 This embodiment requires processing materials of varying types or moisture levels, or controlling the material flow rate. The operator activates the adjustment motor 61 of the synchronous adjustment assembly 6. This motor rotates, driving the adjustment screw 62. The lifting base 63, threaded with the adjustment screw 62, then performs a precise linear lift. The lifting base 63 drives the lifting plate 65 with it. The linkage slot 66 on the lifting plate 65 engages the upper shafts of all flaps 32. As the lifting plate 65 rises or descends, it pushes the upper shafts of all flaps 32 to move synchronously.

[0033] If the lifting plate 65 is pushed downward, it forces the upper end rotation axis of the flap 32 to move away from the middle of the grid plate 31 in the movable groove 37 through the linkage groove 66. Because the lower end rotation axis of the flap 32 is constrained by the fixing hole 36 and the limit groove 68 on the fixing plate 67, it can only move or rotate slightly. This action ultimately causes all flaps 32 to rotate downward around their lower end rotation axis in unison, reducing the tilt angle of the flap 32. This is very useful when handling lightweight and dusty materials. It can maintain a relatively closed state even when material is present, enhancing the sealing effect and also improving the coverage effect of the curtain slats 33.

[0034] If the lifting plate 65 is pulled upward, the process is reversed, and the upper end shaft of the flap 32 is close to the middle of the grid plate 31, so that the flap 32 rotates upward, increasing the inclination angle, facilitating the passage of large flows or the smooth sliding of wet materials to prevent blockage.

[0035] During the entire adjustment process, the telescopic cover 14 always closes the channel on the side of the grid plate 31, and the guide plate 15 always covers the gap in the middle, ensuring that the sealing of the entire flexible flap mechanism 3 is not damaged regardless of the angle of the flap 32.

[0036] Example 3 In this embodiment, the equipment needs to be maintained, overhauled or shut down for a long time, and operational safety must be ensured to prevent the residual material in the upper hopper from accidentally falling. First, stop supplying materials to the upper hopper 1 and allow the material under the flexible flap mechanism 3 to be emptied. Manual or automatic triggering operation closes the isolation door 4 installed at the lower end of the feed shell 12. The isolation door 4 is engaged with the flexible flap mechanism 3 in the closed state, physically forming a strong and reliable double partition, ensuring the absolute safety of maintenance personnel when working on downstream equipment such as the lower hopper 2 or the belt conveyor 71, and avoiding the risk of falling objects from high altitude. After the maintenance is completed, open the isolation door 4 and the equipment can resume normal operation. The flexible flap mechanism 3 continues its automatic opening and closing function.

[0037] Example 4 In this embodiment, after the dust collection mechanism 5 has operated for a period of time, a large amount of coarse particles that are not directly removed settle and accumulate in the collection chamber 52, requiring cleaning to prevent clogging. During normal operation, some coarser and heavier dust particles, when passing through the feed chamber 13, are not directly removed by the negative pressure chamber 53. Instead, they settle and fall under the action of gravity into the collection chamber 52 surrounding the feed chamber 13. When a preset time is reached or the level meter detects that the collection chamber 52 is full of dust, the control system issues a command to open the discharge gate 54. Dust collected in the collection chamber 52, under the action of gravity, falls back into the lower hopper 2 through the opened discharge gate 54, where it mixes with the main material flow and is discharged. This achieves dust recycling and avoids material loss. It also automatically cleans the collection chamber 52, maintaining the efficiency and smooth operation of the dust collection system. After discharge is completed, the discharge gate 54 automatically closes, restoring the collection chamber 52 to its sealed state, and the dust collection system resumes normal operation.

[0038] To sum up, the principle of this embodiment is that a flexible flap mechanism 3 is arranged in the feed chamber 13, which is supported by a transverse grid plate 31 and composed of a plurality of rotatable flaps 32 and a drooping flexible curtain sheet 33. When material flows through, the flap 32 is pushed open and the curtain sheet 33 swings accordingly to form a channel. When there is no material, the flap 32 falls back and the curtain sheet 33 droops by gravity and fits tightly with the adjacent components, thereby forming a flexible sealing layer that can effectively block the escape of dust. The inclination angle of the flap 32 is adjusted by the synchronous adjustment component 6 to realize the linkage and precise synchronous adjustment of the angle of all flaps 32 around the fixed hole 36 at the lower end, so that the channel opening and sealing state can be adaptively changed to cope with different material characteristics and flow requirements, and finally work in conjunction with the uniform negative pressure field formed by the circumferential dust collecting mechanism 5 and the closable isolation door 4 to jointly construct an efficient dust suppression system.

[0039] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope of the appended claims.

[0040] Although this article uses more of the upper hopper 1, feeding cylinder 11, feeding shell 12, feeding chamber 13, telescopic cover 14, guide plate 15, lower hopper 2, rod gate 21, transmission pipe 22, pneumatic plug valve 23, flexible flap mechanism 3, grid plate 31, flap 32, curtain plate 33, main plate body 34, auxiliary plate body 35, fixing hole 36, movable groove 37, support rod 38, support frame 39, isolation door 4, dust collecting mechanism 5, dust collecting cylinder 51, collecting chamber 52, negative pressure chamber 53 The following terms are used herein, but the use of other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional limitations is contrary to the spirit of the present invention.

Claims

1. A dust suppression hopper with a flexible flap system, comprising an upper hopper (1) and a lower hopper (2), characterized in that: A flexible flap mechanism (3) is installed between the upper hopper (1) and the lower hopper (2), an isolation door (4) is installed at the upper end of the flexible flap mechanism (3), and the upper hopper (1) is equipped with a dust collecting mechanism (5).

2. A dust suppression hopper with a flexible flap system according to claim 1, characterized in that: The upper hopper (1) includes a feed barrel (11), the lower end of the feed barrel (11) is connected to a feed shell (12), a feed chamber (13) for assembling a flexible flap mechanism (3) is provided in the feed shell (12), the isolation door (4) is installed at the lower end of the feed shell (12) and is engaged with the flexible flap mechanism (3), and the dust collecting mechanism (5) surrounds the feed barrel (11) circumferentially and is connected to the feed shell (12).

3. The dust suppression hopper with a flexible flap system according to claim 1, characterized in that: The flexible flap mechanism (3) comprises grid plates (31) arranged equidistantly in the transverse direction, and flaps (32) arranged equidistantly in the longitudinal direction are respectively arranged between adjacent grid plates (31), and the flaps (32) are symmetrically arranged relative to the middle of the grid plates (31); the flaps (32) are inclined and the upper ends are respectively connected to drooping curtain pieces (33), and the curtain pieces (33) connected to the flaps (32) are opposite to the adjacent flaps (32) and close the channels between the flaps (32).

4. The dust suppression hopper with a flexible flap system according to claim 3, characterized in that: The grid plate (31) includes a main plate body (34) and a sub-plate body (35) that are telescopically connected along the longitudinal interval. The main plate body (34) or the sub-plate body (35) is provided with a fixing hole (36) that is rotatably connected to the lower end rotation shaft of the flap (32). The adjacent sub-plate body (35) or the main plate body (34) is provided with a movable groove (37) that is rotatably and slidably connected to the upper end rotation shaft of the flap (32). The central axis of the movable groove (37) on the same main plate body (34) or sub-plate body (35) coincides with the center of the fixing hole (36). The main plate body (34) and the sub-plate body (35) are slidably mounted on a support rod (38) extending along the longitudinal direction. The support rod (38) is arranged in parallel in a support frame (39). A synchronous adjustment component (6) is provided between the flap (32) and the support frame (39).

5. The dust suppression hopper with a flexible flap system according to claim 4, characterized in that: The synchronous adjustment component (6) includes an adjustment motor (61) installed on a support frame (39), the output end of the adjustment motor (61) is connected to a vertically arranged adjustment screw (62), the adjustment screw (62) is threadedly connected to a lifting seat (63), and a fixed seat (64) is installed on the support frame (39) and is aligned with the central axis of the lifting seat (63) and the adjustment screw (62); the lifting seat (63) is connected to a lifting plate (65) extending in the longitudinal direction, and the lifting plate (65) is provided with a linkage groove (66) slidably connected to the upper end rotation shaft of the flap (32), and the linkage groove (66) is connected to the lifting plate (65). 6) arranged in a cross pattern with the movable grooves (37) on the main plate (34) or the auxiliary plate (35); the fixing seat (64) is connected to a fixing plate (67) extending in the longitudinal direction, and the fixing plate (67) is provided with a limit groove (68) slidably connected to the rotating shaft at the lower end of the flap (32); a telescopic cover plate (14) is connected between the two ends of the support frame (39) and the main plate (34) or the auxiliary plate (35), and a guide plate (15) covering the upper part of the symmetrically arranged flaps (32) is connected between the middle part of the lifting plate (65), and the guide plate (15) is connected to a curtain piece (33) opposite to the flap (32).

6. The dust suppression hopper with a flexible flap system according to claim 2, characterized in that: The dust collecting mechanism (5) includes a dust collecting tube (51) arranged circumferentially around the feed tube (11), the negative pressure chamber (53) inside the dust collecting tube (51) is connected to the inside of the feed tube (11), and a collecting chamber (52) circumferentially around the feed chamber (13) is provided in the feed shell (12), the upper end of the collecting chamber (52) is connected to the negative pressure chamber (53), and the lower end of the collecting chamber (52) is connected to the lower hopper (2) and a discharge door (54) is installed therebetween; a negative pressure fan (55) is installed at the upper end of the dust collecting tube (51), and the suction end of the negative pressure fan (55) is connected to a negative pressure pipe (56), and the negative pressure pipe (56) extends vertically downward into the negative pressure chamber (53).

7. The dust suppression hopper with a flexible flap system according to claim 1, characterized in that: The lower hopper (2) is in a conical cylindrical shape, and a rod gate (21) is installed at the outlet of the lower end of the lower hopper (2). The rod gate (21) is connected to a pneumatic gate valve (23) through a transmission pipe (22).

8. A dust suppression hopper loader with a flexible flap system, comprising a frame (7), wherein a dust suppression hopper with a flexible flap system according to any one of claims 1 to 7 is installed on the top of the frame (7), characterized in that: A belt conveyor (71) is installed on the vehicle frame (7), and the output end of the belt conveyor (71) is connected to a telescopic chute (72); the vehicle frame (7) has an extension platform (73) extending outward and for installing the belt conveyor (71) and the telescopic chute (72).

9. The dust suppression hopper loader with a flexible flap system according to claim 8, characterized in that: A single bag dust collector (74) is installed on the vehicle frame (7), and the single bag dust collector (74) is connected to the belt conveyor (71) and the telescopic chute (72).

10. The dust suppression hopper loader with a flexible flap system according to claim 8, characterized in that: The lower end of the vehicle frame (7) is pressed against a pressure-bearing guide rail (76) installed on the ground via a pressure-bearing roller (75); the vehicle frame (7) is equipped with a mobile drive system (77); and the vehicle frame (7) is fixedly connected to the ground via a cable (78).

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