Sealing type material transfer system of stacker-reclaimer

Abstract

The utility model relates to the technical field of stacker-reclaimers, in particular to a stacker-reclaimer sealing type material transfer system which comprises a head hopper fixedly arranged on a stacker-reclaimer tripper car, a bottom outlet of the head hopper is connected with an inclined hopper, an outlet section of the inclined hopper extends into a guide groove, and a first guide groove arc-shaped plate is arranged at the top of the guide groove. An outlet section of the inclined hopper is of an arc-shaped structure, an inclined hopper arc-shaped plate is arranged at the top of the outlet section of the inclined hopper, the first guide groove arc-shaped plate corresponds to the inclined hopper arc-shaped plate, and a first rubber plate is arranged between the inner surface of the first guide groove arc-shaped plate and the outer surface of the inclined hopper arc-shaped plate. And the first rubber plate moves along with the motion trail of the guide chute to seal the gap between the guide chute and the inclined funnel. According to the utility model, through the arc sealing arrangement between the guide chute and the inclined funnel, the guide chute can be always in a sealed state in the rotating process, and the problem of dust overflow in the bulk material transferring process is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of stacker-reclaimers, in particular to a sealed material transfer system for a stacker-reclaimer. Background Art

[0002] Stackers and reclaimers are large-scale bulk material conveying systems used in power plants, ports, metallurgical plants, coal mines, coking plants, and other industries. They enable long-distance bulk material transportation. Bucket-wheel stackers and reclaimers are highly efficient, continuous-operation, large-scale loading and unloading equipment suitable for stacking and retrieving materials from bulk material storage yards in ports, large and medium-sized thermal power plants, and metallurgical enterprises.

[0003] The material transfer system is the core operating component of the bucket wheel stacker and reclaimer that transfers and transports bulk materials, diverts and drains, suppresses dust, and other functions. The system is located below the funnel at the head of the tail car, runs through the rotary steel structure and the portal frame device, and is the central hub connecting the cantilever belt conveyor and the ground belt conveyor. It is also a key part of bulk material transportation.

[0004] The current material transfer system generates dust during the conveying process of the belt conveyor, which overflows from the funnel and the material guide chute, causing environmental pollution problems caused by dust, affecting the working environment and endangering the health of workers. Utility Model Content

[0005] In view of the defects of the above-mentioned prior art, the present invention has made a modified design based on the structure of the original funnel and guide trough, and modified the "mechanically movable" connection design between the guide trough and the inclined funnel in the stacker-reclaimer into a "fully sealed mechanically movable" rubber soft connection design.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a sealed material transfer system for a stacker and reclaimer, comprising a head funnel fixedly arranged on the tail car of the stacker and reclaimer, the bottom outlet of the head funnel being connected to the inclined funnel, the outlet section of the inclined funnel extending into the material guide trough, the material guide trough being provided with a first material guide trough arc plate at the top, the outlet section of the inclined funnel being provided with an arc structure, the top of the inclined funnel outlet section being provided with an inclined funnel arc plate, the first material guide trough arc plate being provided corresponding to the inclined funnel arc plate, a first rubber plate being provided between the inner surface of the first material guide trough arc plate and the outer surface of the inclined funnel arc plate, when the material guide trough rotates along the motion axis, the first rubber plate moves along the motion trajectory of the material guide trough to seal the gap between the material guide trough and the inclined funnel.

[0007] Furthermore, the first material guide trough arc plate and the inclined funnel arc plate both have the material guide trough movement axis as the arc center.

[0008] Furthermore, two side surfaces of the connection portion between the material guiding trough and the inclined funnel are sealed by a first side rubber plate.

[0009] Furthermore, the oblique funnel and the central funnel are connected via a bridging structure, so that the oblique funnel and the central funnel become a whole.

[0010] Furthermore, the guide trough is provided with a second guide trough arc plate at the top, the second guide trough arc plate is close to the central funnel, the gap between the first guide trough arc plate and the second guide trough arc plate forms the guide trough inlet, and the inclined funnel outlet section is connected to the guide trough inlet.

[0011] Furthermore, a central funnel inlet is provided on the side wall of the central funnel for the end of the material guide trough to enter, and the central funnel inlet is located below the bridging structure. A second rubber plate is provided below the bridging structure, and the bottom of the second rubber plate forms an arc-shaped rubber sealing surface that matches the arc-shaped plate of the second material guide trough, and the arc-shaped rubber sealing surface is in contact and sealed with the arc-shaped plate of the second material guide trough.

[0012] Furthermore, the arc-shaped rubber sealing surface and the second material guide trough arc plate both have the material guide trough movement axis as the arc center.

[0013] Furthermore, second side rubber plates are provided on both sides of the central funnel inlet.

[0014] Furthermore, the bottom outlet of the central funnel is connected to the lower funnel, and a first dust-proof curtain is provided at the bottom outlet of the lower funnel, which reduces the pressure on the high-drop airflow of the material in the lower funnel; a guide groove is extended at the bottom outlet of the lower funnel, and the internal cavity of the guide groove forms an airflow buffer channel. A second dust-proof curtain is provided at the end of the guide groove, which buffers the leaked airflow overflowing from the lower funnel.

[0015] Furthermore, the two sides of the bottom outlet of the lower funnel and the two sides of the guide groove are sealed by a double-layer anti-overflow skirt; the bottom outlet of the central funnel and the lower funnel are softly connected and sealed by a third rubber plate, and a dust suppression cover is provided at the connection between the bottom outlet of the central funnel and the lower funnel, the dust suppression cover is fixedly connected to the central funnel, the third rubber plate is provided on the lower funnel, and the dust suppression cover is provided above the third rubber plate.

[0016] The beneficial effects of the utility model are as follows: the utility model ensures that the material guide trough can always be in a sealed state during the rotation process through the arc sealing setting between the material guide trough and the inclined funnel, solves the environmental pollution problem caused by dust overflowing from the funnel and the material guide trough during the conveying process of the belt conveyor, reduces the percentage content of dust in the air, improves the air environment, protects the health of the staff, and reduces the working frequency of periodic cleaning work caused by dust accumulation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the stacker-reclaimer structure;

[0018] Figure 2 for Figure 1 Schematic diagram of the material transfer system structure;

[0019] Figure 3 for Figure 2 A magnified view of the sealing connection structure of the middle guide trough;

[0020] Figure 4 for Figure 2 Enlarged view of the middle and lower funnel structure;

[0021] Figure: 1. Head funnel, 2. Inclined funnel, 201. Inclined funnel curved plate, 3. Center funnel, 4. Lower funnel, 5. Material guide chute, 501. First material guide chute curved plate, 502. Second material guide chute curved plate, 6. First rubber plate, 7. Second rubber plate, 8. Third rubber plate, 9. Material guide chute movement axis, 10. Bridging structure, 11. First dust curtain, 12. Guide chute, 13. Airflow buffer channel, 14. Second dust curtain, 15. Double-layer overflow prevention skirt, 16. Dust suppression cover.

[0022] a. Soft connection seal of inclined funnel, b. Soft connection seal of material guide trough, d. Soft connection seal of material guide trough and central funnel, e. Soft connection seal of central funnel, f. Soft connection seal of lower funnel;

[0023] A. Material stacking direction, B. Material taking direction, C. Material high drop airflow, D. Circular motion direction of the material guide chute. DETAILED DESCRIPTION

[0024] To make the above-mentioned objects, features, and advantages of the present invention more clearly understood, the following detailed description of specific embodiments of the present invention is provided in conjunction with the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] See attached Figure 1-4A sealed material transfer system for a stacker and reclaimer includes a head hopper 1 fixedly mounted on a tail car of the stacker and reclaimer. The bottom outlet of the head hopper 1 is connected to an inclined hopper 2. The outlet section of the inclined hopper 2 extends into a material guide trough 5. The material guide trough 5 is provided with a first material guide trough curved plate 501 at the top. The outlet section of the inclined hopper 2 is configured as an arc structure. The top of the outlet section of the inclined hopper 2 has an inclined hopper curved plate 201. The first material guide trough curved plate 501 is arranged corresponding to the inclined hopper curved plate 201. A first rubber plate 6 is provided between the inner surface of the first material guide trough curved plate 501 and the outer surface of the inclined hopper curved plate 201. When the material guide trough 5 rotates along the motion axis 9, the first rubber plate 6 moves along the motion trajectory of the material guide trough 5 to seal the gap between the material guide trough 5 and the inclined hopper 2. The first material guide trough curved plate 501 and the inclined hopper curved plate both have the material guide trough motion axis 9 as their arc center.

[0026] Furthermore, two side surfaces of the connection portion between the material guiding trough 5 and the inclined funnel 2 are sealed by a first side rubber plate.

[0027] Based on the above technical solution, the first guide trough curved plate 501 and the oblique funnel curved plate 201 are concentric arcs, utilizing the principle of equal distance between concentric arcs. This ensures a movable hard connection between the guide trough 5 and the oblique funnel 2. The movable gap on the concentric arc contact surface remains unchanged, ensuring that the guide trough 5 always remains sealed during rotation. A dust-proof first rubber plate 6 is installed in the gap between the movable structures. The first side rubber plate is also installed on the sides of the guide trough 5 and the oblique funnel 2 to achieve a dust-proof sealing effect.

[0028] Furthermore, the oblique funnel 2 and the central funnel 3 are connected via a bridging structure 10 , so that the oblique funnel 2 and the central funnel 3 become a whole.

[0029] Furthermore, the guide trough 5 is provided with a second guide trough arc plate 502 at the top, the second guide trough arc plate 502 is close to the central funnel, the gap between the first guide trough arc plate 501 and the second guide trough arc plate 502 forms a guide trough inlet, and the outlet section of the inclined funnel 2 is connected to the guide trough inlet.

[0030] Furthermore, a central funnel inlet is defined on the sidewall of the central funnel 3, through which the end of the guide trough 5 enters. This inlet is located below the bridge structure 10, and a second rubber plate 7 is positioned below the bridge structure 10. The bottom of the second rubber plate 7 forms a curved rubber sealing surface that mates with the second guide trough curved plate 502. This curved rubber sealing surface forms a seal with the second guide trough curved plate 502. Both the curved rubber sealing surface and the second guide trough curved plate 502 are centered about the guide trough's axis of motion 9. Furthermore, second side rubber plates are positioned on either side of the central funnel inlet.

[0031] Based on the above technical solution, the curved rubber sealing surface and the second material guide chute curved plate 502 are concentric arcs, utilizing the principle of equidistant concentric arcs. First, the inclined funnel 2 and the central funnel 3 are connected by a bridge structure 10 to form a single unit. The bridge portion is designed to have a concentric curved second rubber plate 7 with the material guide chute 5. The material guide chute 5 is inserted into the side wall of the central funnel 3. Second side rubber plates are also installed on both sides of the central funnel 3 to achieve a sealed and dustproof effect.

[0032] Furthermore, the bottom outlet of the central funnel 3 is connected to the lower funnel 4, and a first dust-proof curtain 11 is provided at the bottom outlet of the lower funnel 4, which reduces the pressure on the high-drop airflow of the material in the lower funnel; a guide groove 12 is extended at the bottom outlet of the lower funnel 4, and the internal cavity of the guide groove 12 forms an airflow buffer channel 13, and a second dust-proof curtain 14 is provided at the end of the guide groove 12, which buffers the leaked airflow overflowing from the lower funnel 4.

[0033] Furthermore, the two sides of the bottom outlet of the lower funnel 4 and the two sides of the guide groove 12 are sealed by a double-layer anti-overflow skirt 15; the bottom outlet of the central funnel 3 and the lower funnel 4 are softly connected and sealed by a third rubber plate 8, and a dust suppression cover 16 is provided at the connection between the bottom outlet of the central funnel 3 and the lower funnel. The dust suppression cover 16 is fixedly connected to the central funnel 3, the third rubber plate 8 is provided on the lower funnel 4, and the dust suppression cover 16 is provided above the third rubber plate 8.

[0034] Based on the above technical solution, the lower funnel 4 is provided with a double-layer sealing curtain, that is, on the basis of the original funnel dust curtain, an extended guide groove 12 is added to the outside, and another dust curtain is added at the end of the guide groove 12. The two sides of the guide groove 12 are sealed with anti-overflow skirts 15 at the same time. In this way, when the airflow generated when the material falls hits the first dust curtain 11, the leaked air pressure will be fully released between the first dust curtain 11 and the second dust curtain 12, thereby reducing the powder spraying problem caused by the airflow generated by the material drop.

[0035] The head funnel 1, the oblique funnel 2, the central funnel 3 and the lower funnel 4 are all fixed structures. The guide chute 5 rotates along the motion axis 9. When the stacker-reclaimer is stacking materials, the tail of the guide chute 5 tilts downward, and the materials fall into the conveyor belt through the head funnel 1, the oblique funnel 2, and the guide chute 5 in sequence; when the stacker-reclaimer is retrieving materials, the tail of the guide chute 5 tilts upward, and the materials pass through the head funnel 1, the oblique funnel 2, the guide chute 5, the central hopper 3 and the lower hopper 4 in sequence, and are discharged from the outlet of the lower hopper 4. The first material guide trough curved plate 501, the second material guide trough curved plate 501 and the inclined funnel curved plate 201 are all steel plates. During the rotation of the material guide trough 5, the inclined funnel curved plate 201 and the first material guide trough curved steel plate 501 are sealed by the first rubber plate 6, and the first rubber plate 6 is installed at the end of the first material guide trough curved steel plate 501 close to one end of the inclined funnel curved steel plate 201; the second material guide trough curved steel plate 502 and the bridge structure 10 are sealed by the second rubber plate 7.

[0036] See also Figure 1 In this embodiment, the soft connection sealing structure is a rubber plate sealing connection structure, and the soft connection sealing structure (second rubber plate 7) between the guide trough 5 and the central funnel 3 adopts an arc-shaped closed loop design.

[0037] This embodiment leverages the principle of constant clearance between concentric circles, transforming the existing movable clearance from a variable to a fixed value, thereby simplifying the dust-proof seal. A pressure relief channel is installed outside the first dust curtain in the lower hopper to mitigate the pressure generated by the drop in material and reduce the risk of dust spraying due to pressure overload. This reduces dust pollution and improves the air environment.

[0038] In this embodiment, the head funnel, inclined funnel, material guide trough, central funnel, lower funnel, etc. are all original components of the stacker-reclaimer. The overall shape structure and connection assembly method not described in this embodiment are common knowledge in the field and do not fall within the scope of protection of the present utility model. Therefore, the present utility model will not describe them in detail.

[0039] It should be noted that the parts not described in detail in the present invention are prior art.

[0040] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0041] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0042] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connected," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, flexible connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0043] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0044] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0045] The above examples are merely preferred embodiments of the present invention. Obviously, the present invention is not limited to the above examples and is subject to numerous variations. Any variations that can be directly derived or conceived by a person skilled in the art from the disclosure of the present invention should be considered within the scope of protection of the present invention.

Claims

1. A sealed material transfer system for a stacker / reclaimer, characterized by: It includes a head funnel fixedly set on the tail car of the stacker and reclaimer, the bottom outlet of the head funnel is connected to the inclined funnel, the outlet section of the inclined funnel extends into the material guide trough, the material guide trough is provided with a first material guide trough arc plate at the top, and the top of the inclined funnel outlet section is provided with an inclined funnel arc plate, the first material guide trough arc plate and the inclined funnel arc plate are arranged correspondingly, and a first rubber plate is provided between the inner surface of the first material guide trough arc plate and the outer surface of the inclined funnel arc plate. When the material guide trough rotates along the motion axis, the first rubber plate moves along the motion trajectory of the material guide trough to seal the gap between the material guide trough and the inclined funnel.

2. The sealed material transfer system for a stacker and reclaimer according to claim 1, characterized in that: The first material guide trough arc plate and the inclined funnel arc plate both have the material guide trough movement axis as the arc center.

3. The sealed material transfer system for a stacker and reclaimer according to claim 1, characterized in that: The two side surfaces of the connection portion between the material guide trough and the inclined funnel are sealed by a first side rubber plate.

4. The sealed material transfer system for a stacker and reclaimer according to claim 1, characterized in that: The oblique funnel and the central funnel are connected via a bridging structure, so that the oblique funnel and the central funnel become a whole.

5. The sealed material transfer system for a stacker and reclaimer according to claim 4, characterized in that: The guide trough is provided with a second guide trough arc plate at the top, the second guide trough arc plate is close to the central funnel, the gap between the first guide trough arc plate and the second guide trough arc plate forms the guide trough inlet, and the inclined funnel outlet section is connected to the guide trough inlet.

6. The sealed material transfer system for a stacker and reclaimer according to claim 5, characterized in that: A central funnel inlet for the end of the material guide trough to enter is provided on the side wall of the central funnel. The central funnel inlet is located below the bridge structure. A second rubber plate is provided below the bridge structure. The bottom of the second rubber plate forms an arc-shaped rubber sealing surface that matches the arc-shaped plate of the second material guide trough. The arc-shaped rubber sealing surface contacts and seals with the arc-shaped plate of the second material guide trough.

7. The sealed material transfer system for a stacker and reclaimer according to claim 6, characterized in that: The arc-shaped rubber sealing surface and the second material guide trough arc-shaped plate both take the material guide trough movement axis as the arc center.

8. The sealed material transfer system for a stacker and reclaimer according to claim 6, characterized in that: Second side rubber plates are provided on both sides of the central funnel inlet.

9. The sealed material transfer system for a stacker-reclaimer according to claim 4, characterized in that: The bottom outlet of the central funnel is connected to the lower funnel, and a first dust-proof curtain is provided at the bottom outlet of the lower funnel, which reduces the pressure on the high-drop airflow of the material in the lower funnel; a guide groove is extended at the bottom outlet of the lower funnel, and the internal cavity of the guide groove forms an airflow buffer channel. A second dust-proof curtain is provided at the end of the guide groove, which buffers the leaked airflow overflowing from the lower funnel.

10. The sealed material transfer system for a stacker-reclaimer according to claim 9, characterized in that: The two sides of the bottom outlet of the lower funnel and the two sides of the guide groove are sealed by double-layer anti-overflow skirt plates; the bottom outlet of the central funnel and the lower funnel are softly connected and sealed by a third rubber plate, and a dust suppression cover is provided at the connection between the bottom outlet of the central funnel and the lower funnel. The dust suppression cover is fixedly connected to the central funnel, and the third rubber plate is provided on the lower funnel, and the dust suppression cover is provided above the third rubber plate.

Images