A hopper device for unloading solid coal gangue materials at a dock

Abstract

This utility model discloses a hopper device for unloading solid coal gangue at a wharf, comprising a hopper with several coal gangue crushing structures assembled and connected inside. Each coal gangue crushing structure includes a support arm hinged to the side wall of the hopper. A crushing structure is fixedly connected to the top of the support arm. A spring-loaded limiting member is hinged to the outer bottom of the support arm, comprising a hinged joint hinged to the support arm, and a telescopic structure fixedly connected to the hinged joint. The telescopic structure includes a telescopic rod fixedly connected to the hinged joint, and a sleeve support is slidably connected to the telescopic rod, which is hinged to the hopper. A reinforcing spring is sleeved on the telescopic rod. This structure effectively solves the technical defect of large-sized coal gangue blocks getting stuck in the hopper during the coal gangue unloading process.

Description

Technical Field

[0001] This utility model belongs to the technical field of dock unloading devices, and in particular relates to a dock unloading solid coal gangue material hopper device. Background Technology

[0002] Cargo shipping is a mode of transportation with large transport capacity and low cost. For example, a large amount of coal gangue needed by a power plant can be transported to a city dock by a cargo ship. The material is then unloaded from the cargo ship by a large unloading equipment grab bucket and discharged onto equipment such as a belt conveyor through a discharge hopper.

[0003] Most hoppers offer high flowability when discharging powdery materials like coal powder, due to the material's high fluidity and particle size characteristics. However, coal gangue differs from powdery materials; it contains a large number of larger chunks. This is primarily because during the processing of gangue by coal mining companies, it is often treated as a byproduct with a high degree of roughness, resulting in the presence of large, insufficiently crushed gangue pieces mixed in. Large grab hoppers often fail to detect these large gangue pieces buried within the crushed gangue pile.

[0004] However, after being grabbed and fed into the hopper, the material is prone to getting stuck at the bottom of the hopper (the conical structure area), meaning that large pieces of gangue get stuck in the discharge area of ​​the hopper.

[0005] Gangue has a low coal content and high hardness, so once large pieces of gangue get stuck in the hopper's discharge area, they are not only difficult to be broken up by subsequent material being grabbed and discharged, but also difficult to remove manually. This is because the discharge hoppers are often deep and have a large volume, making manual operation very difficult.

[0006] Meanwhile, during the unloading process, because the coal gangue contains a large amount of small-sized fragments, a large amount of dust is easily generated above the hopper during the grab bucket unloading process, and the generation of dust seriously affects the environment of the working area. Utility Model Content

[0007] Based on the above background, the purpose of this utility model is to provide a hopper device for unloading solid coal gangue materials at a wharf.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] A hopper device for unloading solid coal gangue at a wharf includes a hopper, and a plurality of coal gangue crushing structures are assembled and connected inside the hopper; the coal gangue crushing structure includes a support arm hinged to the side wall of the hopper.

[0010] A material breaking structure is fixedly connected to the top of the support arm;

[0011] The bottom outer end of the support arm is hinged to a spring limiting member, which includes a hinge member hinged to the support arm and a telescopic structure fixedly connected to the hinge member.

[0012] The telescopic structure includes a telescopic rod fixedly connected to a hinge, a sleeve support slidably connected to the telescopic rod, and the sleeve support hinged to the hopper; a reinforcing spring is sleeved on the telescopic rod.

[0013] Preferably, the hopper includes a cylindrical portion with a rectangular cross-sectional shape, and the bottom of the cylindrical portion is integrally formed into a conical portion;

[0014] The crushing structures are symmetrically distributed on the two side walls of the cylindrical part that face each other.

[0015] Preferably, the top of the cylindrical section is integrally formed with a conical hopper for increasing the feed.

[0016] Preferably, the bottom outer end of the support arm is provided with a hinge groove, a pin is fixedly connected in the hinge groove, the hinge component includes a hinge tongue plate hinged to the pin, a connecting rod is fixedly connected to the hinge tongue plate, a spring seat is fixedly connected to the connecting rod, and the telescopic rod is fixedly connected to the spring seat.

[0017] One end of the reinforcing spring is fixedly connected to the spring seat, and the other end of the reinforcing spring is fixedly connected to the sleeve support.

[0018] Preferably, the material breaking structure includes a plurality of triangular splitting plates welded to the top of the support arm;

[0019] The fracture end of the triangular splitting plate is set at an angle.

[0020] Preferably, a dust-reducing mechanism is fixedly connected to the top of the conical hopper.

[0021] Preferably, the dust collection mechanism includes a dust collection pipe fixedly installed at the top of the conical hopper;

[0022] It also includes a detachable dust collection pipe, with several humidification and dust suppression nozzles connected to both the dust collection pipe and the upper dust collection pipe.

[0023] Preferably, a plurality of connecting parts are installed between the upper dust collection pipe and the lower dust collection pipe.

[0024] Preferably, the connector includes a lower fixing seat fixedly connected to the dust descending pipe, and the lower fixing seat is fixedly connected to the top of the conical hopper;

[0025] It also includes an upper fixed base that is connected to the lower fixed base via a detachable connection structure;

[0026] The lower fixed seat and the upper fixed seat are respectively fastened to the dust collection pipe and the upper dust collection pipe by pin screws;

[0027] The detachable connection structure includes fixing screws that are fixedly connected to the lower fixing seat and the lower fixing seat respectively, and an adjusting sleeve is threaded between the fixing screws.

[0028] Preferably, the upper dust collection pipe and the lower dust collection pipe are rectangular in shape;

[0029] The upper dust collection pipe and the lower dust collection pipe are respectively connected to connecting pipes, which are connected to an external water supply pipe. This utility model has the following beneficial effects:

[0030] 1. Several coal gangue fracturing structures are assembled and connected inside the hopper (the fracturing structures are symmetrically distributed on the two opposing side walls of the cylindrical part, specifically on the left and right side walls). These fracturing structures work in conjunction with the grab bucket to ensure that during operation, large pieces of coal gangue are intercepted and supported between the fracturing structures after being lifted and discharged. During the next discharge from the grab bucket, the impact force of the discharged material strikes the intercepted and supported large pieces of gangue, causing them to continuously impact the fracturing structures and eventually split and break apart.

[0031] The above structure enables the complete crushing of large gangue blocks through the combination of grab bucket feeding and gangue crushing structure, effectively solving the technical defect that large gangue blocks in the gangue material are easily stuck in the hopper, affecting the smoothness of feeding.

[0032] 2. During operation, when the grab bucket is feeding gangue into the hopper, it encounters large, lumpy gangue blocks that are supported and trapped between the support arm and the triangular splitting plate structure. In this process, the impact force generated during feeding causes the large, lumpy gangue blocks to collide with the triangular splitting plate. The spring is then compressed, and the telescopic rod slides into the cavity of the sleeve support to a certain depth.

[0033] After the next feeding, the material impacts the gangue further under the huge impact of the material. Then, under the impact of the triangular splitting plate, the gangue is further broken up. After two or three times, the gangue is completely broken up and falls off.

[0034] In the above process, the elastic structure of the telescopic mechanism is used to buffer the impact of large amounts of material, especially the deformation of the triangular splitting plate, during the discharge of gangue. Secondly, during repeated discharge from the grab bucket, the impact force repeatedly strikes and intercepts the gangue, eventually causing it to completely split and flow downwards. This structure effectively solves the technical problem of gangue blocks getting stuck in the hopper during unloading. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0036] Figure 1 This is a schematic diagram of the overall structure in an embodiment of the present utility model;

[0037] Figure 2 This is a schematic diagram of the connector structure in an embodiment of this utility model;

[0038] Figure 3 This is a schematic diagram of the coal gangue fracturing structure installed inside the hopper in an embodiment of this utility model;

[0039] Figure 4 This is an embodiment of the present utility model. Figure 1 The front view in the middle;

[0040] Figure 5 This is a schematic diagram of the coal gangue fracturing structure in an embodiment of this utility model;

[0041] Figure 6 This is a schematic diagram of the telescopic structure in an embodiment of the present invention.

[0042] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0043] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0044] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0045] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0046] Example 1

[0047] like Figure 1-6 As shown, a hopper device for unloading solid coal gangue at a wharf includes a hopper 1, the shape and size of which are the same as those of existing wharf unloading hoppers. Specifically, the hopper 1 includes a cylindrical part 11 with a rectangular cross-sectional shape, and the bottom of the cylindrical part 11 is integrally formed into a conical part.

[0048] Meanwhile, similar to the existing dock unloading hopper 1, a steel structure support 2 is fixedly connected to the outer wall of the aforementioned hopper 1, suspending the hopper 1 in the air. The bottom of the hopper 1 maintains a sufficient distance from the ground, facilitating material discharge from the outlet of the hopper 1 onto the conveyor belt during operation (the hopper 1 is supported and suspended by the steel structure support). The main structure of the steel structure support 2 includes several support legs on the ground and a steel frame fixedly supported around the hopper.

[0049] Meanwhile, similar to the existing hopper 1 structure, the top of the cylindrical part 11 is integrally formed with a conical hopper 12 for increasing the feed. The opening of the conical hopper 12 is enlarged to increase the size of the feed opening, which facilitates the feeding of material by the grab bucket while reducing the overflow of material from the opening of the hopper 1.

[0050] To break up large chunks of gangue in the material, this invention incorporates several gangue crushing structures 4 (symmetrically distributed on the opposing side walls of the cylindrical section 11, specifically on the left and right side walls) connected within the hopper 1. These crushing structures 4 work in conjunction with the grab bucket to catch and discharge material. During operation, large chunks of gangue are intercepted and supported between the crushing structures 4 after being discharged. In the next discharge, the impact force of the material impacts the intercepted and supported large chunks of gangue, causing them to continuously collide with the crushing structures 4 and eventually split and break apart.

[0051] During the unloading process at the dock, mechanical grabbing buckets (existing dock unloading is all done by mechanical grabbing buckets) are used to grab materials from the ship's hold and lower them into the buckets.

[0052] The above structure enables the complete crushing of large gangue blocks through the combination of grab bucket feeding and gangue crushing structure, effectively solving the technical defect that large gangue blocks in the gangue material are easily stuck in the hopper 1, affecting the smoothness of feeding.

[0053] Example 2

[0054] like Figure 1-6 As shown, based on the structure of Embodiment 1, the coal gangue fracturing structure 4 includes a support arm 41 hinged to the side wall of the hopper 1. The hinge method is as follows: an upper hinge seat 411 is fixedly connected to the side wall of the hopper 1, a pin is fixedly connected inside the upper hinge seat 411, and the inner end of the support arm 41 has a hinge lug, which is hinged to the pin.

[0055] The top of the aforementioned support arm 41 is fixedly connected to a crushing structure; specifically, the crushing structure includes a pair of triangular splitting plates 42 welded to the top of the support arm 41; the fracture ends of the triangular splitting plates 42 are inclined. The inclination is downward (corresponding to the direction of gangue discharge).

[0056] Meanwhile, a spring limiting member is hinged to the bottom outer end of the support arm 41. The spring limiting member includes a hinge member hinged to the support arm 41, and the hinge member is fixedly connected to a telescopic structure. The telescopic structure includes a telescopic rod 433 fixedly connected to the hinge member. The telescopic rod 433 is slidably connected to a sleeve bracket 434. The sleeve bracket 434 is hinged to the hopper 1 (hinging method: a lower hinge seat 4341 is fixedly installed on the side wall of the hopper 1, and the hinge method is the same as described above). A reinforcing spring 432 is sleeved on the telescopic rod 433.

[0057] Specifically, the bottom outer end of the support arm 41 is provided with a hinge groove, and a pin is fixedly connected in the hinge groove. The hinge component includes a hinge tongue plate hinged to the pin, a connecting rod 431 fixedly connected to the hinge tongue plate, a spring seat 4311 fixedly connected to the connecting rod 431, and the telescopic rod 433 fixedly connected to the spring seat. One end of the reinforcing spring 432 is fixedly connected to the spring seat 4311, and the other end of the reinforcing spring 432 is fixedly connected to the sleeve bracket 434.

[0058] Specifically, during operation, when the grab bucket picks up and discharges the gangue into hopper 1, it encounters large, lumpy gangue blocks that are supported and trapped between the support arm 41 and the triangular splitting plate 42. In this process, the impact force generated during discharge causes the large, lumpy gangue blocks to collide with the triangular splitting plate 42. The reinforcing spring 432 is compressed, and the telescopic rod 433 partially slides into the cavity of the sleeve support 434 to a certain depth.

[0059] After the next feeding, the material is subjected to a huge impact and further impacts the gangue. Then, under the impact of the triangular splitting plate 42, the gangue is further broken up. After two or three such cycles, the gangue is completely broken up and falls off.

[0060] In the above process, the elastic structure of the telescopic structure is used to buffer the impact of the large material being fed, especially the impact of the gangue blocks on the triangular splitting plate 42 (using the deformation of the spring to form a buffer is a common application based on the inherent property of springs in the prior art). Secondly, during the repeated feeding process of the grab bucket, the impact force of the feeding is used to repeatedly impact and intercept the gangue blocks. After a few times, the gangue can be completely split and flow down.

[0061] The above structure effectively solves the technical defect of gangue blocks getting stuck in the hopper 1 during the unloading of gangue.

[0062] In the above structure, the support arm 41 and the triangular split plate 42 are made of steel.

[0063] Example 3

[0064] like Figure 1-6 As shown, based on the structure of Example 2, this embodiment improves upon the following in order to solve the problem of dust emission during the material feeding process:

[0065] A dust suppression mechanism 3 is fixedly connected to the top of the conical hopper 12. The dust suppression mechanism 3 includes a descending dust pipe 32 fixedly installed at the top of the conical hopper 12 and an upper dust suppression pipe 31 detachably connected thereto. Several humidification and dust suppression nozzles 33 are respectively connected to the descending dust pipe 32 and the upper dust suppression pipe 31. The nozzles 33 are conventional nozzles disclosed in the prior art. Atomizing nozzles are preferred to achieve the spraying of rain mist, which has a wider coverage area and a more significant humidification effect.

[0066] Four connectors 34 are installed between the upper dust collection pipe 31 and the lower dust collection pipe 32, and the upper dust collection pipe 31 and the lower dust collection pipe 32 are fixedly installed through the connectors 34.

[0067] Specifically, the upper dust suppression pipe 31 and the lower dust suppression pipe 32 are rectangular in shape; thus, they match the shape of the conical bucket 12 during the dust suppression spraying process, so as to achieve the formation of rain mist by spraying from all sides.

[0068] Therefore, the connectors 34 are fixedly installed at the four corner positions on the upper dust collection pipe 31 and the lower dust collection pipe 32, respectively.

[0069] Specifically, each connector 34 includes a lower fixing seat 342 fixedly connected to the dust descending pipe 32, the lower fixing seat 342 being fixedly connected to the top of the conical bucket 12; it also includes an upper fixing seat 341 connected to the lower fixing seat 342 via a detachable connecting structure 345; the lower fixing seat 342 and the upper fixing seat 341 are respectively fastened to the dust descending pipe 32 and the upper dust descending pipe 31 by pin screws 343.

[0070] Specifically, in the existing manner, fixed supports are welded to the bend positions of the aforementioned dust descending pipe 32 and the upper dust descending pipe 31, and the pin-fixing screw 343 is threadedly connected to the fixed supports.

[0071] Meanwhile, the detachable connection structure 345 includes fixing screws 3451 respectively fixedly connected to the lower fixing seat 342 and the fixing seat 342, and an adjusting sleeve 3452 is threadedly connected between the fixing screws 3451. The cavity of the adjusting sleeve 3452 is a threaded cavity. When the atomizing humidification structure is arranged in a double layer, the two ends of the adjusting sleeve 3452 are respectively threadedly connected to the fixing screws 3451 on the lower fixing seat 342 and the fixing seat 342.

[0072] The adjusting sleeve 3452 is in the shape of a regular hexagon, which is intended to facilitate the tightening operation of the wrench.

[0073] During operation, the double-layered dust-falling pipes 32 and 31 spray rain mist towards the conical hopper 12. Meanwhile, a large amount of dust is generated during the material feeding process from the grab hopper 1 to the feed hopper 1. The rain mist humidifies this dust. After humidification, the increased weight of the dust causes it to fall back into the feed hopper 1.

[0074] This is achieved through the detachable connection structure 345. Under normal circumstances, humidification and dust suppression can be completed through the single-layer dust collection pipe 32 during the unloading process. However, in actual operation, especially with the subsequent feeding of highly pulverized powder (the feeding of coal gangue can completely pass through the single-layer dust collection pipe 32), the highly pulverized powder has a fast escape rate and a large escape volume. Therefore, the material can be fully humidified by the double-layer dust collection pipe 32 and the upper dust collection pipe 31. After sufficient humidification, the large amount of escaped dust is aggravated.

[0075] In the existing configuration, the upper dust suppression pipe 31 and the lower dust suppression pipe 32 are each connected to a connecting pipe. According to the existing spray system, these connecting pipes are connected to an external water supply pipe, such as via flanges, to allow the external water supply pipe to pump the dust suppression water. Pumping dust suppression water through an external water supply pipe is a conventional method disclosed in the prior art.

[0076] Of course, the above description is not intended to limit the present utility model, and the present utility model is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present utility model should also fall within the protection scope of the present utility model.

Claims

1. A port unloading solid coal gangue material hopper device, characterized in that, Includes a hopper, and a plurality of coal gangue crushing structures are assembled and connected inside the hopper; the coal gangue crushing structure includes a support arm hinged to the side wall of the hopper; A material breaking structure is fixedly connected to the top of the support arm; The bottom outer end of the support arm is hinged to a spring limiting member, which includes a hinge member hinged to the support arm and a telescopic structure fixedly connected to the hinge member. The telescopic structure includes a telescopic rod fixedly connected to a hinge, a sleeve support slidably connected to the telescopic rod, and the sleeve support hinged to the hopper; a reinforcing spring is sleeved on the telescopic rod.

2. The dock unloading solid coal gangue material hopper device according to claim 1, characterized in that, The hopper includes a cylindrical section with a rectangular cross-sectional shape, and a conical section integrally formed at the bottom of the cylindrical section; The crushing structures are symmetrically distributed on the two side walls of the cylindrical part that face each other.

3. The dock unloading solid coal gangue material hopper device according to claim 2, characterized in that, The top of the cylindrical section is integrally formed with a conical hopper for increasing the feed.

4. The dock unloading solid coal gangue material hopper device according to claim 1, characterized in that, The bottom outer end of the support arm is provided with a hinge groove, and a pin is fixedly connected in the hinge groove. The hinge component includes a hinge tongue plate hinged to the pin, a connecting rod fixedly connected to the hinge tongue plate, a spring seat fixedly connected to the connecting rod, and the telescopic rod fixedly connected to the spring seat. One end of the reinforcing spring is fixedly connected to the spring seat, and the other end of the reinforcing spring is fixedly connected to the sleeve support.

5. The dock unloading solid coal gangue material hopper apparatus as claimed in claim 1, wherein, The material breaking structure includes several triangular splitting plates welded to the top of the support arm; The fracture end of the triangular splitting plate is set at an angle.

6. The wharf unloading solid coal gangue material hopper device according to claim 3, characterized in that, A dust suppression mechanism is fixedly connected to the top of the conical hopper.

7. The dock unloading solid coal refuse material hopper apparatus of claim 6, wherein, The dust suppression mechanism includes a dust suppression pipe that is fixedly installed at the top of the conical hopper; It also includes a detachable dust collection pipe, with several humidification and dust suppression nozzles connected to both the dust collection pipe and the upper dust collection pipe.

8. The dock unloading solid coal gangue material hopper apparatus of claim 7, wherein, Several connecting parts are installed between the upper dust collection pipe and the lower dust collection pipe.

9. The dock unloading solid coal refuse material hopper apparatus of claim 8, wherein, The connector includes a lower fixing seat fixedly connected to the dust descending pipe, and the lower fixing seat is fixedly connected to the top of the conical hopper; It also includes an upper fixed base that is connected to the lower fixed base via a detachable connection structure; The lower fixed seat and the upper fixed seat are respectively fastened to the dust collection pipe and the upper dust collection pipe by pin screws; The detachable connection structure includes fixing screws that are fixedly connected to the lower fixing seat and the lower fixing seat respectively, and an adjusting sleeve is threaded between the fixing screws.

10. The dock unloading solid coal refuse material hopper apparatus of claim 7, wherein, The upper dust collection pipe, the lower dust collection pipe is rectangular in shape; The upper dust collection pipe and the lower dust collection pipe are each connected to a connecting pipe, which is connected to an external water supply pipe.

Images