Dust suppression hopper car loader with flexible flap system

Abstract

The application provides a dust suppression hopper car loader with a flexible flap system, which solves the problems of unloading isolation and the like, and comprises 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 provided with a dust collection mechanism. The application has the advantages of good isolation effect, high dust recovery rate and the like.

Description

Technical Field

[0001] This invention belongs to the field of material conveying equipment technology, specifically relating to a dust suppression hopper loading machine with a flexible flap system. Background Technology

[0002] A prevalent problem in current ship unloading operations has drawn widespread attention: severe dust spillage during the material release process via grab buckets, directly causing environmental pollution in the dock area. To effectively reduce this spillage, measures such as increasing the power of dust collectors and fans have been implemented. However, while this has resulted in significantly increased equipment power, it has also created new problems: the equipment has become bulky and cumbersome. Despite the increased power, the actual dust collection effect is not ideal, creating a dilemma in solving the problem.

[0003] To address the shortcomings of existing technologies, people have conducted long-term explorations and proposed various solutions. For example, Chinese patent literature discloses a dust-suppressing filter device for flour selection [202420644463.0], which includes a filter box, a bracket supporting 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 components installed on both sides of the feed hopper, two dust suppression components connected to a feeding component, a filter cylinder installed inside the filter box, a tilting component installed inside the filter cylinder, a belt connecting the tilting component and the feeding component, and mounting slots on both sides of the feed hopper, each mounting slot containing a dust suppression component.

[0004] The above solution has solved the problem of dust overflow to some extent, but it still has many shortcomings, such as poor isolation between the upper and lower hoppers during the grab bucket unloading process. Summary of the Invention

[0005] The purpose of this invention is to address the above-mentioned problems by providing a dust suppression hopper with a reasonable design and good isolation effect, featuring a flexible flap system.

[0006] Another objective of this invention is to address the aforementioned problems by providing a dust suppression hopper loading machine with a flexible flap system that prevents dust from overflowing.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a dust suppression hopper with a flexible flap system, comprising an upper hopper and a lower hopper, wherein 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 collection mechanism.

[0008] In the dust suppression hopper with a flexible flap system described above, the feeding hopper includes a feeding cylinder, the lower end of which is connected to a feeding shell. The feeding shell is provided with a feeding cavity for the flexible flap mechanism to be assembled. An isolation door is installed at the lower end of the feeding shell and is engaged with the flexible flap mechanism. The dust collection mechanism surrounds the feeding cylinder circumferentially and is connected to the feeding shell.

[0009] In the dust suppression hopper with a flexible flap system described above, the flexible flap mechanism includes grids arranged at equal intervals in the transverse direction, and flaps arranged at equal intervals in the longitudinal direction between adjacent grids, with the flaps arranged symmetrically relative to the center of the grids; the flaps are inclined and their upper ends are respectively connected to hanging curtains, and the curtains connected to the flaps are opposite to the adjacent flaps and close the channel between the flaps.

[0010] In the dust suppression hopper with a flexible flap system described above, the grid plate includes a main plate and a secondary plate that are longitudinally spaced and telescopically connected. The main plate or the secondary plate has a fixed hole that is rotatably connected to the lower end of the flap. Adjacent secondary plates or main plates have movable grooves that are rotatably and slidably connected to the upper end of the flap. The central axis of the movable groove on the same main plate or secondary plate coincides with the center of the fixed hole. The main plate and the secondary plate are slidably mounted on a support rod that extends longitudinally. The support rod is arranged parallel to the support frame. A synchronous adjustment component is provided between the flap and the support frame.

[0011] In the aforementioned dust suppression hopper with a flexible flap system, the synchronous adjustment component includes an adjustment motor mounted on a support frame. The output end of the adjustment motor is connected to a vertically arranged adjustment screw. The adjustment screw is threadedly connected to a lifting seat. A fixed seat is mounted on the support frame, which is aligned with the central axis of the lifting seat and the adjustment screw. The lifting seat is connected to a longitudinally extending lifting plate. The lifting plate has a linkage groove that is slidably connected to the upper rotating shaft of the flap. The linkage groove and the movable groove on the main plate or the auxiliary plate are arranged in a cross shape. The fixed seat is connected to a longitudinally extending fixed plate. The fixed plate has a limiting groove that is slidably connected to the lower rotating shaft of the flap. Telescopic cover plates are connected between the two ends of the support frame and the main plate or the auxiliary plate. A guide plate is connected between the middle of the lifting plates, covering the flaps arranged symmetrically, and the guide plate is connected to a curtain opposite to the flaps.

[0012] In the dust suppression hopper with a flexible flap system described above, the dust collection mechanism includes a dust collection cylinder arranged around the circumference of the feeding cylinder. The negative pressure chamber inside the dust collection cylinder is connected to the inside of the feeding cylinder. A collection chamber is provided inside the feeding shell that is arranged around the circumference of the feeding chamber. The upper end of the collection chamber is connected to the negative pressure chamber, and the lower end of the collection chamber is connected to the discharge hopper and a discharge door is installed between them. A negative pressure fan is installed at the upper end of the dust collection cylinder. 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 dust suppression hopper with a flexible flap system described above, the hopper is cone-shaped, and a bar gate is installed at the lower outlet of the hopper. The bar gate is connected to a pneumatic slide valve through a transmission pipe.

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

[0015] In the aforementioned dust suppression hopper loading machine 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 aforementioned dust suppression hopper loading machine with a flexible flap system, the lower end of the chassis is pressed against a pressure-bearing guide rail installed on the ground via pressure-bearing rollers; the chassis is equipped with a mobile drive system; and the chassis is fixedly connected to the ground by cables.

[0017] Compared with existing technologies, the advantages of this invention are as follows: It adopts an upper and lower hopper structure, where the material grabbed by the grab bucket is unloaded in the upper hopper. Dust generated during unloading is effectively treated by a dust collection mechanism located around the upper hopper, which not only effectively prevents dust overflow but also protects the environment from pollution, ensuring a clean and safe work site. The flexible flap mechanism allows materials to pass quickly and smoothly under gravity, while effectively sealing most of the dust and air mixture inside the lower hopper, thus ensuring a clean working environment and pure materials. The optimized separation process through the isolation door significantly reduces the processing capacity of the dust collection mechanism and the dust concentration in the gas, thereby reducing the overall power consumption of the machine. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the loading machine of the present invention;

[0019] Figure 2 This is a schematic diagram of the dust suppression hopper of the present invention;

[0020] Figure 3 This is a schematic diagram of the flexible flap mechanism of the present invention;

[0021] Figure 4 This is a partial schematic diagram of the flexible flap mechanism of the present invention;

[0022] Figure 5 This is a partial cross-sectional view of the flexible flap mechanism of the present invention;

[0023] In the diagram, the components are: 1. Feeding hopper; 11. Feeding cylinder; 12. Feeding shell; 13. Feeding chamber; 14. Telescopic cover; 15. Guide plate; 2. Discharge hopper; 21. Bar gate; 22. Transmission pipe; 23. Pneumatic slide valve; 3. Flexible flap mechanism; 31. Grid plate; 32. Flip plate; 33. Curtain; 34. Main plate; 35. Sub-plate; 36. Fixing hole; 37. Movable groove; 38. Support rod; 39. Support frame; 4. Isolation door; 5. Dust collection mechanism; 51. Dust collection cylinder; 52. Collection chamber. 53. Negative pressure chamber 54. Discharge door 55. Negative pressure fan 56. Negative pressure pipe 57. Synchronous adjustment component 68. Adjustment motor 61. Adjustment screw 62. Lifting seat 63. Fixed seat 64. Lifting plate 65. Linkage groove 66. Fixed plate 67. Limit groove 68. Chassis 79. Belt conveyor 70. Telescopic chute 71. Extension platform 72. Single bag dust collector 73. Pressure roller 74. Pressure guide rail 75. Mobile drive system 76. Cable 77. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0025] like Figure 1-5 As shown, a dust suppression hopper with a flexible flap system includes a feed hopper 1 and a discharge hopper 2. The feed hopper 1 is responsible for receiving and temporarily storing materials, and the dust generated during unloading is initially controlled by a dust collection mechanism 5. The discharge hopper 2 is used for guiding and discharging the final material. A flexible flap mechanism 3 is installed between the feed hopper 1 and the discharge hopper 2, which can automatically open when material flows through and automatically close when there is no material, effectively preventing dust from escaping from the bottom. An isolation door 4 is installed at the upper end of the flexible flap mechanism 3. This isolation door 4 can be manually or automatically closed during equipment maintenance or long-term shutdown, forming a physical barrier to further enhance sealing and ensure operational safety. The feed hopper 1 is equipped with a dust collection mechanism 5 to suck up and collect the generated dust.

[0026] Specifically, the feeding hopper 1 includes a feeding cylinder 11, the lower end of which is connected to a feeding shell 12. The feeding shell 12 contains a feeding cavity 13 for assembling the flexible flap mechanism 3, providing installation and movement space for the flap mechanism. An isolation door 4 is installed at the lower end of the feeding shell 12 and engages with the flexible flap mechanism 3. A dust collection mechanism 5 surrounds the feeding cylinder 11 and communicates with the feeding shell 12. This circumferential layout ensures a uniform distribution of the suction negative pressure field, efficiently capturing dust escaping from the feed inlet.

[0027] Specifically, the flexible flap mechanism 3 includes horizontally equidistant grid plates 31 as the main support structure of the entire mechanism. Vertically equidistant flaps 32 are arranged between adjacent grid plates 31, symmetrically positioned relative to the center of the grid plates 31, guiding the material downwards towards the center. Each flap 32 is inclined and has a hanging slat 33 connected to its upper end. These slats 33 are made of flexible material, and they are aligned with adjacent flaps 32, closing the channel between them. When material slides down the flap 32, the slats 33 automatically open. When there is no material, the flaps 32 fall back, and the slats 33 hang down under their own weight, tightly fitting against adjacent flaps 32 to form a flexible sealing layer, completely blocking the dust channel.

[0028] Furthermore, to accommodate different material feeding volumes, the grid plate 31 adopts a movable structure, specifically including a main plate body 34 and a secondary plate body 35 that are longitudinally spaced and telescopically connected. The main plate body 34 or secondary plate body 35 has a fixed hole 36 that is rotatably connected to the lower end rotating shaft of the flip plate 32, serving as a fixed rotation fulcrum for the flip plate 32. Adjacent secondary plate bodies 35 or main plate bodies 34 have movable grooves 37 that are rotatably and slidably connected to the upper end rotating shaft of the flip plate 32. The movable grooves 37 allow the upper end rotating shaft of the flip plate 32 to slide within the grooves, and the rotation center of the flip plate 32 is not fixed. When the synchronous adjustment component 6 is activated, the tilt angle of all flip plates 32 can be changed as a whole by altering the relative position of the movable grooves 37 and the rotating shaft. The alignment of the central axis of the movable groove 37 on the same main plate body 34 or secondary plate body 35 with the center of the fixed hole 36 ensures that the movement trajectory of the flip plate 32 is precise and consistent when adjusting its angle. The main body 34 and the secondary body 35 are slidably mounted on the longitudinally extending support rods 38. The support rods 38 are arranged in pairs, one above the other, with a gap between them to avoid affecting the longitudinal movement and adjustment of the upper and lower rotating shafts of the flip plate 32. The support rods 38 are arranged parallel to each other inside the support frame 39. A synchronous adjustment component 6 is provided between the flip plate 32 and the support frame 39. This synchronous adjustment component 6 enables all flip plates 32 to move together and accurately adjust the tilt angle.

[0029] Furthermore, the synchronous adjustment assembly 6 includes an adjustment motor 61 mounted on the support frame 39. Synchronizing rods are connected to the outputs of different adjustment motors 61 to ensure consistent driving. A vertically positioned adjustment screw 62 is connected to the output of the adjustment motor 61, and the adjustment screw 62 is threadedly connected to a lifting seat 63, thereby converting the rotational motion of the adjustment motor 61 into precise linear lifting motion of the lifting seat 63. A fixed seat 64, aligned with the central axis of the lifting seat 63 and the adjustment screw 62, is mounted on the support frame 39 for guiding and stabilizing purposes. The lifting seat 63 is connected to a longitudinally extending lifting plate 65, which has a linkage groove 66 that slides along the upper rotating shaft of the flip plate 32. When the lifting plate 65 moves up and down, the linkage groove 66 drives the upper rotating shafts of all the flip plates 32 to move synchronously up and down. The linkage groove 66 and the movable groove 37 on the main plate 34 or the sub-plate 35 are arranged in a cross shape. This cross arrangement makes the movement of the upper end of the flip plate 32 a combination of the vertical movement provided by the lifting plate 65 and the horizontal movement allowed by the movable groove 37, ultimately forcing the flip plate 32 to rotate around its lower end fixing hole 36, thereby achieving an angle change. The fixing base 64 is connected to a fixing plate 67 extending longitudinally. The fixing plate 67 has a limiting groove 68 that slides with the lower end rotating shaft of the flip plate 32. The limiting groove 68 constrains the position of the lower end rotating shaft of the flip plate 32, ensuring that it moves on a preset trajectory. In conjunction with the linkage groove 66, it precisely controls the movement of all flip plates 32. The two ends of the support frame 39 are connected to the main plate 34 or the sub-plate 35 by telescopic cover plates 14 to close the channel between them, ensuring the closure and isolation of the rest of the grid plate 31. The middle part of the lifting plate 65 is connected to a guide plate 15 that covers the symmetrically arranged flip plates 32, and the guide plate 15 is connected to a curtain slat 33 opposite to the flip plate 32. The guide plate 15 covers the middle part of the grid plate 31, and together with the flap 32 and the curtain 33, they form a flexible sealing system without dead angles.

[0030] In addition, the dust collection mechanism 5 includes a dust collection cylinder 51 arranged circumferentially around the feed cylinder 11. The negative pressure chamber 53 inside the dust collection cylinder 51 is connected to the inside of the feed cylinder 11, thus forming a uniform negative pressure zone around the feed cylinder 11. A collection chamber 52 is provided inside the feed housing 12, circumferentially 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 discharge hopper 2, with a discharge door 54 installed between them. The collection chamber 52 is used to collect coarser dust particles that are not directly drawn away by the negative pressure chamber 53 and settle down. The discharge door 54 can open periodically or automatically to discharge the collected dust back into the discharge hopper 2, achieving dust recycling and preventing blockage of the collection chamber 52. A negative pressure fan 55 is installed at the upper end of the dust collection cylinder 51. 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 up dust and prevent dust from accumulating in the negative pressure pipe 56.

[0031] Meanwhile, the discharge hopper 2 is cone-shaped, which facilitates the concentrated falling of materials. A bar gate 21 is installed at the lower outlet of the discharge hopper 2, and the discharge flow rate and material column shape can be controlled by adjusting the bar gap. The bar gate 21 is connected to a pneumatic slide valve 23 via a transmission pipe 22 as a final switch, which can achieve rapid and sealed interception, facilitating the pausing and switching of loading operations.

[0032] A dust suppression hopper loading machine with a flexible tipping system includes a frame 7. A dust suppression hopper with a flexible tipping system is mounted on top of the frame 7. A belt conveyor 71 is mounted on the frame 7 to continuously output 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 unloading height, reduce material impact and dust generation, and accommodate vehicle compartments of different heights. The frame 7 has an outwardly extending platform 73 for mounting the belt conveyor 71 and the telescopic chute 72. The space beneath the extension platform 73 provides a stable parking space for the vehicle and can be used for inspection and maintenance.

[0033] As can be seen, a single-bag dust collector 74 is installed on the frame 7. The independent single-bag dust collector 74 is connected to the belt conveyor 71 and the telescopic chute 72. As a secondary dust removal system, it is used to collect dust generated at the transfer point of the belt conveyor 71, the outlet of the telescopic chute 72, and other parts to ensure that the whole machine meets stricter environmental protection standards.

[0034] Preferably, the lower end of the frame 7 is pressed against a pressure-bearing guide rail 76 installed on the ground via pressure-bearing rollers 75, allowing the entire loading machine to move along the rail and realize continuous loading operations for trains or long rows of trucks. The frame 7 is equipped with a mobile drive system 77, which typically uses belt transmission to provide driving force, but other drive structures can also be used; the frame 7 is fixedly connected to the ground by cables 78 to prevent the equipment from moving under the reaction force of loading, ensuring operational safety and accurate positioning.

[0035] Example 1

[0036] In this embodiment, material continuously falls from the feed hopper 1 and enters the discharge hopper 2 through the flexible flap mechanism 3 for final discharge. Material enters from the feed cylinder 11 and falls into the feed chamber 13. The material's gravity acts on the flap 32 of the flexible flap mechanism 3 and slides down. As the material pushes open the flap 32, it also pushes open the flexible curtain 33 connected to the upper end of the flap. When feeding is briefly stopped, the material acting on the flap 32 and the curtain 33 disappears. The curtain 33 hangs down entirely under its own weight, tightly adhering to the curtain of the adjacent flap 32, forming a flexible sealing layer that completely blocks the dust passage, preventing dust from escaping from the discharge hopper 2.

[0037] Furthermore, the dust collection mechanism 5 operates continuously during this process. 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 upward dust generated during unloading is directly sucked and captured from the source.

[0038] Example 2

[0039] This embodiment requires handling materials of different types or with varying moisture levels, or requires controlling the material flow rate. The operator starts the regulating motor 61 of the synchronous regulating component 6. The regulating motor 61 rotates, driving the regulating screw 62 to rotate. The lifting seat 63, which is threadedly driven by the regulating screw 62, then performs a precise linear lifting motion. The lifting seat 63 drives the lifting plate 65 to move together. The linkage groove 66 on the lifting plate 65 engages the upper rotating shafts of all the flip plates 32. When the lifting plate 65 rises or falls, it pushes the upper rotating shafts of all the flip plates 32 to move synchronously.

[0040] If the lifting plate 65 is pushed downward, it forces the upper pivot of the flap 32 to move away from the center of the grid plate 31 within the movable groove 37 via the linkage groove 66. Since the lower pivot of the flap 32 is constrained by the fixing hole 36 and the limiting 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 the lower pivot, reducing the tilt angle of the flaps 32. This is very useful when handling lightweight, dusty materials, as it can maintain a relatively closed state even when there is material, enhancing the sealing effect. At the same time, the covering effect of the curtain 33 is also better.

[0041] If the lifting plate 65 is pulled upward, the process is reversed. The upper end of the flap 32 rotates close to the middle of the grid plate 31, causing the flap 32 to rotate upward, increasing the tilt angle, which facilitates the passage of large flow or the smooth sliding of wet materials and prevents blockage.

[0042] Throughout the adjustment process, the telescopic cover 14 always closes the channel on the side of the grid 31, and the guide plate 15 always covers the gap in the middle, ensuring that the sealing of the entire flexible flip mechanism 3 is not compromised regardless of the angle of the flip plate 32.

[0043] Example 3

[0044] In this embodiment, when the equipment requires maintenance, repair, or long-term shutdown, it is essential to ensure operational safety and prevent the accidental fall of residual material from the feeding hopper. First, stop feeding material into the feeding hopper 1 and allow the material below the flexible flap mechanism 3 to be emptied. Manually or automatically, close the isolation door 4 installed at the lower end of the feed housing 12. The isolation door 4, in conjunction with the closed flexible flap mechanism 3, physically forms a robust and reliable double partition, ensuring the absolute safety of maintenance personnel working on downstream equipment such as the unloading hopper 2 or belt conveyor 71, and avoiding the risk of falling objects from height. After maintenance, open the isolation door 4, and the equipment can resume normal operation. The flexible flap mechanism 3 continues its automatic opening and closing function.

[0045] Example 4

[0046] In this embodiment, after the dust collection mechanism 5 has been running for a period of time, a large amount of coarse particles that were not directly extracted accumulate in the collection chamber 52, requiring cleaning to prevent blockage. During normal operation, some coarser and heavier dust particles, when passing through the feed chamber 13, are not directly extracted by the negative pressure chamber 53, but instead settle and fall under gravity, entering the collection chamber 52 surrounding the feed chamber 13. When a preset time is reached or the level gauge detects that the collection chamber 52 is full of dust, the control system issues a command to open the discharge door 54. The dust collected in the collection chamber 52 falls back into the discharge hopper 2 under gravity through the open discharge door 54, mixes with the main material flow, and is discharged together. This achieves dust recycling, avoids material loss, and also completes the automatic cleaning of the collection chamber 52, maintaining the high efficiency and smooth flow of the dust collection system. After discharge, the discharge door 54 automatically closes, restoring the collection chamber 52 to a sealed state, and the dust collection system continues to operate normally.

[0047] In summary, the principle of this embodiment is as follows: a flexible flap mechanism 3 is set in the feeding chamber 13, which is composed of a horizontal grid plate 31 as support, multiple rotatable flaps 32 arranged longitudinally at equal intervals on it, and a hanging flexible curtain 33. When material flows through, the flaps 32 are pushed open and the curtains 33 swing to form a channel. When there is no material, the flaps 32 fall back and the curtains 33 hang down by gravity and fit tightly with the adjacent components, thereby forming a flexible sealing layer that can effectively block dust from escaping. The tilt angle of the flaps 32 is adjusted synchronously and in a precise manner around the fixing hole 36 at the lower end of all flaps 32 by the synchronous adjustment component 6. This allows for adaptive changes in the channel opening and sealing state to cope with different material characteristics and flow requirements. Finally, it works in conjunction with the uniform negative pressure field formed by the circumferential dust collection mechanism 5 and the closable isolation door 4 to jointly construct a high-efficiency dust suppression system.

[0048] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

[0049] Although this paper extensively uses the following components: 1. Feeding hopper, 11. Feeding cylinder, 12. Feeding shell, 13. Feeding chamber, 14. Telescopic cover, 15. Guide plate, 2. Discharge hopper, 21. Bar gate, 22. Transmission pipe, 23. Pneumatic slide valve, 34. Flexible flap mechanism, 31. Grid plate, 32. Flip plate, 33. Main plate, 34. Sub-plate, 35. Fixing hole, 36. Movable groove, 37. Support rod, 38. Support frame, 39. Isolation door, 4. Dust collection mechanism, 5. Dust collection cylinder, 51. Collection chamber, 52. Negative pressure chamber, 53. The terms used include: 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 groove 66, fixed plate 67, limit groove 68, frame 7, belt conveyor 71, telescopic chute 72, extension platform 73, single-unit bag dust collector 74, pressure roller 75, pressure guide rail 76, mobile drive system 77, cable 78, etc., but the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of the invention; interpreting them as any additional limitation would contradict the spirit of the invention.

Claims

1. A dust suppression hopper with a flexible flap system, comprising an upper hopper (1) and an lower hopper (2), characterized in that, A flexible flap mechanism (3) is installed between the feeding hopper (1) and the unloading hopper (2). An isolation door (4) is installed at the upper end of the flexible flap mechanism (3). The feeding hopper (1) is equipped with a dust collection mechanism (5). The flexible flap mechanism (3) includes grids (31) arranged at equal intervals in the horizontal direction. Flip plates (32) are arranged at equal intervals in the longitudinal direction between adjacent grids (31). The flip plates (32) are arranged symmetrically relative to the middle of the grids (31). The flip plates (32) are inclined and have hanging curtains (33) connected to their upper ends. The curtains (33) connected to the flip plates (32) are opposite to the adjacent flip plates (32) and close the channel between the flip plates (32). The grid plate (31) includes a main plate (34) and a secondary plate (35) that are longitudinally spaced and telescopically connected. The main plate (34) or the secondary plate (35) has a fixing hole (36) that is rotatably connected to the lower end of the flip plate (32). Adjacent secondary plates (35) or main plates (34) have movable grooves (37) that are rotatably and slidably connected to the upper end of the flip plate (32). The central axis of the movable groove (37) on the same main plate (34) or secondary plate (35) coincides with the center of the fixing hole (36). The main plate (34) and the secondary plate (35) are slidably mounted on a longitudinally extending support rod (38). The support rod (38) is arranged parallel to the support frame (3). 9) Inside, a synchronous adjustment assembly (6) is provided between the flap (32) and the support frame (39); the synchronous adjustment assembly (6) includes an adjustment motor (61) installed on the 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) that matches 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 longitudinally, and the lifting plate (65) has a sliding connection with the upper rotating shaft of the flap (32). The linkage groove (66) is connected to the main body (34) or the auxiliary plate (35) in a cross-shaped arrangement; the fixed seat (64) is connected to a fixed plate (67) extending longitudinally, and the fixed plate (67) has a limiting groove (68) that is slidably connected to the lower end of the flip plate (32); the two ends of the support frame (39) are connected to the main body (34) or the auxiliary plate (35) with telescopic cover plates (14); the middle of the lifting plates (65) is connected to a guide plate (15) covering the flip plates (32) arranged symmetrically, and the guide plate (15) is connected to a curtain slat (33) opposite to the flip plate (32).

2. The dust suppression hopper with a flexible flap system according to claim 1, characterized in that, The feeding hopper (1) includes a feeding cylinder (11), the lower end of which is connected to a feeding shell (12). The feeding shell (12) is provided with a feeding cavity (13) for the flexible flap mechanism (3) to be assembled. The isolation door (4) is installed at the lower end of the feeding shell (12) and is engaged with the flexible flap mechanism (3). The dust collection mechanism (5) surrounds the feeding cylinder (11) and is connected to the feeding shell (12).

3. A dust suppression hopper with a flexible flap system according to claim 2, characterized in that, The dust collection mechanism (5) includes a dust collection cylinder (51) arranged around the feed cylinder (11) in a circumferential direction. The negative pressure chamber (53) inside the dust collection cylinder (51) is connected to the inside of the feed cylinder (11). The feed shell (12) is provided with a collection chamber (52) that is arranged around the feed chamber (13) in a circumferential direction. 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 discharge hopper (2) and a discharge door (54) is installed between them. A negative pressure fan (55) is installed at the upper end of the dust collection cylinder (51). 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).

4. A dust suppression hopper with a flexible flap system according to claim 1, characterized in that, The feeding hopper (2) is cone-shaped, and a bar gate (21) is installed at the lower outlet of the feeding hopper (2). The bar gate (21) is connected to a pneumatic slide valve (23) through a transmission pipe (22).

5. A dust suppression hopper loading machine with a flexible flap system, comprising a frame (7), wherein a dust suppression hopper with a flexible flap system as described in any one of claims 1-4 is mounted on the top of the frame (7), characterized in that, The frame (7) is equipped with a belt conveyor (71), and the output end of the belt conveyor (71) is connected to a telescopic chute (72); the frame (7) has an outwardly extending extension platform (73) for mounting the belt conveyor (71) and the telescopic chute (72).

6. A dust suppression hopper loading machine with a flexible flap system according to claim 5, characterized in that, The frame (7) is equipped with a single-unit bag dust collector (74), which is connected to the belt conveyor (71) and the telescopic chute (72).

7. A dust suppression hopper loading machine with a flexible flap system according to claim 5, characterized in that, The lower end of the frame (7) is pressed against the pressure guide rail (76) installed on the ground by pressure rollers (75); the frame (7) is equipped with a mobile drive system (77); the frame (7) is fixedly connected to the ground by cables (78).

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