Multi-path separated coal hopper

Abstract

The utility model relates to the technical field of material distribution equipment, and discloses a multi-path branch bunker coal bucket which comprises a coal bucket body, the coal bucket body is of a big-end-up bucket-shaped structure, the lower end face of the coal bucket body is provided with a first discharge port, the first discharge port is divided into N areas, and N sub discharge ports are formed; and the N sub discharge ports are connected with coal bucket split bodies in a one-to-one correspondence mode, second discharge ports are formed in the lower end faces of the coal bucket split bodies, and the second discharge ports are located in the middles of projection coverage areas of the corresponding sub discharge ports, so that the coal bucket split bodies are vertically arranged in the gravity direction. The coal bucket is vertically arranged along the gravity direction, the internal channel of the coal bucket is consistent with the natural falling direction of materials, and gravitational potential energy can be effectively utilized to realize self-flow conveying of the materials. According to the vertical channel structure, the friction contact area between the materials and the inner walls of the split bodies is reduced, the phenomenon that the materials are detained or slide insufficiently due to angle deviation of a traditional inclined material distributing structure is avoided, and therefore the overall conveying efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to material distribution equipment technical field, especially a kind of multi-path warehouse coal hopper. BACKGROUND

[0002] In bulk material conveying field, as the core equipment of material temporary storage and branch transfer, the structure design of warehouse coal hopper directly affects the continuity and efficiency of industrial production. The traditional warehouse coal hopper mostly adopts single discharge opening or simply separated warehouse body structure, which is difficult to meet the demand of multi-path precise distribution and efficient conveying in modern industry. Especially in coal, metallurgy, building materials and other industries, the adaptability of warehouse equipment is put forward to higher requirements for the variety of materials (such as high humidity coal powder, sticky ore or uneven size of broken material).

[0003] In the prior art, in order to realize the branch conveying function, most of the warehouse coal hoppers are provided with inclined branch channels at the lower part of the main body. This kind of design usually extends the warehouse partition plate to the discharge opening at a certain angle, forming multiple inclined flow guide surfaces. However, the practical application shows that this inclined branch structure has the following defects: first, when the material flows in the inclined channel, the direction of its movement and the direction of gravity have an angle, which increases the contact area between the material and the warehouse partition plate and the side wall, and significantly increases the sliding friction resistance. For the material with poor flowability (such as wet coal with water content of more than 8%), the inclined wall surface is easy to cause the material to adhere and accumulate, and even form a "material arch" in the branch channel, which causes the flow to be interrupted. Secondly, the inclination angle of the branch channel lacks universality, and it is difficult to consider the repose angle characteristics of different materials. For example, when processing mixed materials with large particle size difference, small particles are easy to be retained at the bottom of the inclined channel, while large particles are unevenly distributed in the channel due to rolling inertia, which finally causes the "flow interruption-flowing" alternating phenomenon at the branch outlet, seriously damaging the conveying stability.

[0004] In summary, the existing warehouse coal hopper is limited by the inclined branch structure, and has the bottleneck problems of large material flow resistance, uneven distribution, easy blockage and high maintenance cost. Especially when processing high viscosity, mixed materials with multiple particle sizes or high humidity materials, the traditional design is difficult to balance the conveying efficiency and structural reliability, and a new type of coal hopper structure is needed to optimize the flow channel form and reduce the flow resistance. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a multi-path warehouse coal hopper to solve the problems existing in the prior art and make the discharge more smooth.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following scheme:

[0007] A multi-path warehouse coal hopper, comprising a coal hopper main body, the coal hopper main body is a large upper and small lower hopper structure, a first discharge port is formed in the lower end surface of the coal hopper main body, the first discharge port is divided into N regions, forming N sub-discharge ports, N is an integer greater than or equal to two; the N sub-discharge ports are connected with a coal hopper sub-body one by one, the coal hopper sub-body is a large upper and small lower hopper structure, a second discharge port is formed in the lower end surface of the coal hopper sub-body, the second discharge port is located in the middle of the projection coverage area of the corresponding sub-discharge port, so that the coal hopper sub-body is vertically arranged along the direction of gravity.

[0008] In an exemplary embodiment, the connection between the coal hopper sub-body and the coal hopper main body is smoothly transitioned.

[0009] In an exemplary embodiment, the first discharge port is evenly divided into N regions.

[0010] In an exemplary embodiment, the coal hopper sub-body comprises a connecting section located at the upper part and a discharge hopper located at the lower part, the upper end of the connecting section is connected with the sub-discharge port, and the lower end is connected with the discharge hopper.

[0011] In an exemplary embodiment, the cross-sectional area of the connecting section gradually decreases from top to bottom, and the shape of the cross-section of the connecting section gradually changes from top to bottom, eventually coinciding with the shape of the upper end surface of the discharge hopper.

[0012] In an exemplary embodiment, the horizontal cross-section of the discharge hopper has a circular, elliptical or polygonal profile.

[0013] In an exemplary embodiment, the first discharge port is divided into N regions by a warehouse partition, and the warehouse partition and the extension of the lower edge of the coal hopper main body together form the connecting section, or the warehouse partition alone forms the connecting section.

[0014] In an exemplary embodiment, a feeder is provided below each second discharge port, the feeder comprising a feeder inlet, a feeder pipeline and a feeder outlet, the feeder inlet being arranged opposite the second discharge port, and the feeder inlet being in communication with the feeder outlet through the feeder pipeline.

[0015] In an exemplary embodiment, a conveyor is provided in the feeder pipeline.

[0016] In an exemplary embodiment, the conveyor is a belt conveyor, a scraper conveyor or a screw conveyor.

[0017] The present utility model has achieved the following technical effects compared with the prior art:

[0018] By vertically arranging the coal bucket split body along the gravity direction, the internal passage is consistent with the natural falling direction of the material, and the material moves along the natural falling trajectory during the branch conveying process, and the gravitational potential energy can be maximally converted into flow kinetic energy. The vertical structure reduces the friction contact area between the material and the inner wall of the split body, avoids the material retention or insufficient sliding caused by angle deviation of the traditional inclined split structure, and improves the overall conveying efficiency.

[0019] By arranging the second discharge port in the middle of the projection coverage area of the corresponding sub-discharge port, the material can be symmetrically distributed along the geometric center of the projection coverage area when transferring from the coal bucket body to the coal bucket split body, and this symmetric flow state can eliminate the risk of local accumulation caused by branch load deviation. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0021] Figure 1 The structural diagram of the multi-way warehouse-splitting coal bucket disclosed in a specific embodiment of the present application is shown.

[0022] Figure 2 For Figure 1 The cross-sectional view of the coal bucket body is shown.

[0023] Figure 3 For Figure 1 The top view of the coal bucket body is shown.

[0024] 1, coal bucket body; 2, first discharge port; 3, sub-discharge port; 4, coal bucket split body; 5, second discharge port; 6, connecting section; 7, discharge hopper; 8, warehouse partition; 9, first feeder; 10, feeding inlet; 11, feeding pipeline; 12, feeding outlet; 13, second coal bucket; 14, second feeder; 15, third feeder; 16, first coal bucket split body; 17, second coal bucket split body. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be described clearly and completely in the following with reference to the drawings in the embodiments of the present application, and those skilled in the art can easily understand other advantages and effects of the present application from the content disclosed in the present specification. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0026] The present application provides a multi-path warehouse-dividing coal hopper to solve the problems in the prior art and make the discharging more smooth.

[0027] In order to make the above-mentioned purposes, features and advantages of the present application more apparent, obvious and easy to understand, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0028] Please refer to Figures 1 to 3 The present application provides a multi-path warehouse-dividing coal hopper, which comprises a coal hopper body 1, the coal hopper body 1 is in a hopper structure with a large upper part and a small lower part, a first discharging port 2 is formed in the lower end surface of the coal hopper body 1, the first discharging port 2 is divided into N regions to form N sub-discharging ports 3, N is an integer greater than or equal to two. The N sub-discharging ports 3 are one-to-one connected with coal hopper bodies 4, the coal hopper bodies 4 are in a hopper structure with a large upper part and a small lower part, a second discharging port 5 is formed in the lower end surface of the coal hopper body 4, the second discharging port 5 is located in the middle of the projection coverage area of the corresponding sub-discharging port 3, so that the coal hopper body 4 is vertically arranged along the direction of gravity. When the regions of the first discharging port 2 are divided, the size of each region can be determined according to the actual material ratio requirement, the larger the area of the region, the greater the material flow, and vice versa, and the regions are evenly divided when there is no special requirement.

[0029] Since the coal hopper bodies 4 are vertically arranged along the direction of gravity, the internal passages thereof are consistent with the natural falling direction of the material, and the material moves along the natural falling trajectory during the branch conveying process, so that the gravitational potential energy of the material can be maximally converted into flow kinetic energy. Such vertical structure reduces the friction contact area between the material and the inner wall of the body, avoids the material retention or insufficient sliding caused by angle deviation of the traditional inclined material-dividing structure, and thus improves the overall conveying efficiency.

[0030] From the perspective of material distribution uniformity, the second discharge port 5 is located in the middle of the projection coverage area corresponding to the sub-discharge port 3, so that when the material is transferred from the main body 1 to the sub-body, it can be distributed symmetrically along the geometric center of the projection coverage area. This symmetrical flow state can eliminate the risk of local accumulation caused by uneven load distribution. In addition, the N uniformly divided areas correspond to N sub-discharge ports 3 and N coal hopper sub-bodies 4, respectively. The uniform vertical arrangement of the coal hopper sub-bodies 4 eliminates the adverse effects of eccentric load on the main body 1, ensuring that the material flow in each sub-body channel remains balanced and preventing structural stress concentration caused by uneven load distribution.

[0031] In terms of anti-blocking function, the vertically arranged hopper-shaped coal hopper sub-body 4 forms a continuous tapered streamline channel, and the inner wall angle strictly follows the material repose angle requirement. This design keeps the material in a controlled state during flow, effectively preventing bridging and piling caused by channel turning or angle changes. Especially for coal with high humidity or uneven particle size, the linear flow characteristics of the vertical channel can significantly reduce the shear resistance between materials and maintain a stable discharge speed.

[0032] From the perspective of structural reliability, the vertical connection between the coal hopper sub-body 4 and the main body 1 simplifies the stress state of the connection part. Each sub-body independently bears the material load of the corresponding area and directly transmits the load to the lower support structure through a vertical force transmission path. This modular design not only improves the overall stability of the structure but also facilitates the maintenance and repair of individual sub-bodies. When a sub-body needs maintenance, the corresponding sub-discharge port 3 can be closed without affecting the normal operation of other channels, significantly improving the maintainability and operational continuity of the system.

[0033] In this embodiment, the connection between the coal hopper sub-body 4 and the main body 1 is smoothly transitioned to avoid resistance caused by structural changes during material flow.

[0034] Specifically, the coal hopper sub-body 4 includes a connection section 6 at the upper part and a discharge hopper 7 at the lower part. The upper end of the connection section 6 is connected to the sub-discharge port 3, and the lower end is connected to the discharge hopper 7. The cross-sectional area of the connection section 6 gradually decreases from top to bottom, and the shape of the cross-section of the connection section 6 gradually changes from top to bottom, eventually coinciding with the shape of the upper end surface of the discharge hopper 7. The horizontal cross-section of the discharge hopper 7 has a circular, elliptical, or polygonal profile.

[0035] As Figure 3As shown, the first discharge port 2 is divided into N regions by the compartment partition 8, and two regions are taken as an example in this embodiment. The compartment partition 8 and the extension of the lower edge of the coal bucket body 1 jointly form the connecting section 6, or the compartment partition 8 alone forms the connecting section 6. When the number N is larger, for example, the first discharge port 2 is divided in the form of a nine-square grid, the connecting sections 6 at the outer edges are jointly formed by the compartment partition 8 and the extension of the lower edge of the coal bucket body 1, and the connecting sections 6 at the middle are formed by one or more compartment partitions 8.

[0036] Further, a feeder is arranged below each second discharge port 5, and the feeder includes a feeding inlet 10, a feeding pipeline 11 and a feeding outlet 12. The feeding inlet 10 is arranged opposite to the second discharge port 5, and the feeding inlet 10 is communicated with the feeding outlet 12 through the feeding pipeline 11. A conveyor is arranged in the feeding pipeline 11, and the conveyor is a belt conveyor, a scraper conveyor or a screw conveyor. Different second discharge ports 5 correspond to different feeders, and a stop valve is arranged at each inlet and outlet, so that independent metering and conveying of different branch materials can be realized, and the device is suitable for fine coal blending operation.

[0037] Specifically, in actual use, the coal bucket body 1 is generally used in cooperation with another coal bunker, i.e., a second coal bunker 13, to form a compartment coal blending system. For example, the coal bucket body 1 contains first category coal, and the second coal bunker 13 contains second category coal. The coal bucket body 1 has a first coal bucket body 16 and a second coal bucket body 17. According to work requirements, the on-off state of the stop valve in the compartment coal blending system can be freely controlled.

[0038] For example, the stop valves at the discharge port of the first coal bucket body 16 and the discharge port of the second feeder 14 can be opened, and the stop valves at the discharge port of the second coal bucket body 17 and the discharge port of the second coal bunker 13 can be closed, so that only the first category coal is supplied to the coal using device through the first coal bucket body 16.

[0039] For example, the stop valves at the discharge port of the first coal bucket body 16 and the discharge port of the second coal bucket body 17 can be closed, and the stop valves at the discharge port of the second coal bunker 13 and the discharge port of the third feeder 15 can be opened, so that only the second category coal is supplied to the coal using device through the second coal bunker 13.

[0040] For example, the stop valves at the discharge port of the first coal bucket body 16 and the discharge port of the second coal bunker 13 can be closed, and the stop valves at the discharge port of the second coal bucket body 17, the discharge port of the first feeder 9 and the discharge port of the third feeder 15 can be opened, so that only the first category coal is supplied to the coal using device through the second coal bucket body 17.

[0041] The first coal hopper split body 16 can be closed, and the second coal hopper split body 17, the first feeder 9, the second coal hopper 13 and the third feeder 15 can be opened, that is, the first and second types of coal are mixed and supplied to the coal using device.

[0042] Further, the four coal supply modes can be switched freely by controlling the opening and closing of the valves, that is, the coal type supplied by the coal blending system can be quickly switched by controlling the opening and closing of the valves, thereby achieving the technical effects of accurate coal blending and quick switching of coal types.

[0043] It can be understood that, in the working states described in the above embodiments, only the opening and closing states of part of the valves are specifically introduced, and in the actual supply process, when the coal is supplied in any one or more of the above modes, the other stop valves on the corresponding route can be opened or closed according to the requirements.

[0044] In the description of the present application, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are used only for the convenience of describing the present application, and do not imply or require that the devices or elements referred to must have a particular orientation or construction, therefore should not be understood as a limitation on the present application. In addition, the terms "first", "second", "third" and the like are only used to distinguish the description objects, and should not be understood as a limitation on importance or order, and such terms limited features can be explicitly or implicitly included one or more features. Unless otherwise stated, "multiple" in the description of the present application means two or more.

[0045] For the terms "mounting", "connecting", "connecting", unless otherwise limited, should be understood broadly, including but not limited to fixed connection, detachable connection or integral connection; mechanical connection or electrical connection; direct connection or indirect connection through intermediate medium; and the communication between two elements. Those skilled in the art can understand its meaning according to the specific technical scheme. In the present application, the fixed connection involved, unless otherwise stated, includes detachable fixed connection (such as bolt, screw connection), and also includes non detachable fixed connection (such as riveting, welding), and also includes the whole structure realized by integral forming process (such as casting) (except for obvious integral forming).

[0046] The terms used in any of the technical solutions disclosed in the present application to represent the positional relationship or shape, unless otherwise stated, cover the approximate, similar or close state or shape.

[0047] Any component provided by the utility model can be assembled by multiple separate components, or can be a separate component manufactured by one-piece forming process.

[0048] It is understood that the structure, proportion, size and the like shown in the drawings of the specification are only used to cooperate with the content disclosed in the specification, to be understood and read by those skilled in the art, and do not define the limiting conditions for the implementation of the utility model, and therefore do not have technical substantive significance, any modification of structure, change of proportion relationship or adjustment of size, without affecting the effects and purposes that can be achieved by the utility model, should still fall within the scope of the technical content disclosed by the utility model.

[0049] In the embodiments of the present application, the same reference signs represent the same component or the same part.

[0050] Any adaptive change according to actual needs is within the protection scope of the utility model.

[0051] It should be noted that for those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the claims.

[0052] The principles and implementation modes of the utility model are described by applying specific examples in the utility model, and the above embodiment description is only used to help understand the method and core idea of the utility model; at the same time, for those skilled in the art, according to the idea of the utility model, there will be changes in specific implementation modes and application scope. In conclusion, the content of the specification should not be understood as a limitation of the utility model.

Claims

1. A multiple bin-destaging coal bin characterized by: The coal bucket main body (1) is a bucket-shaped structure with the upper part larger than the lower part, a first discharge port (2) is arranged on the lower end surface of the coal bucket main body (1), the first discharge port (2) is divided into N regions, forming N sub-discharge ports (3), N is an integer greater than or equal to two, and the coal bucket sub-body (4) is connected to the N sub-discharge ports (3) one by one, the coal bucket sub-body (4) is a bucket-shaped structure with the upper part larger than the lower part, a second discharge port (5) is arranged on the lower end surface of the coal bucket sub-body (4), the second discharge port (5) is located in the middle of the projection coverage area of the corresponding sub-discharge port (3), so that the coal bucket sub-body (4) is arranged vertically along the direction of gravity.

2. The multiple bin-merging coal bin according to claim 1, characterized in that: The connection between the coal bucket sub-body (4) and the coal bucket main body (1) is smoothly transitioned.

3. The multiple bin-merging hopper of claim 1, wherein: The first discharge port (2) is evenly divided into N regions.

4. The multiple bin-merging coal bin of claim 1, wherein: The coal bucket sub-body (4) includes a connecting section (6) located at the upper part and a discharge bucket (7) located at the lower part, the upper end of the connecting section (6) is connected to the sub-discharge port (3), and the lower end of the connecting section (6) is connected to the discharge bucket (7).

5. The multiple bin-merging hopper of claim 4, wherein: The cross-sectional area of the connecting section (6) gradually decreases from top to bottom, and the shape of the cross section of the connecting section (6) gradually changes from top to bottom, eventually coinciding with the shape of the upper end surface of the discharge bucket (7).

6. The multiple bin-merging coal bin of claim 4, wherein: The horizontal cross section of the discharge bucket (7) has a circular, elliptical or polygonal contour.

7. The multiple bin-merging hopper of claim 4, wherein: The first discharge port (2) is divided into N regions by a compartment partition (8), and the compartment partition (8) and the extension surface of the lower edge of the coal bucket main body (1) jointly form the connecting section (6), or the compartment partition (8) alone forms the connecting section (6).

8. The multiple bin-merging coal hopper according to any one of claims 1 to 7, characterized in that: A feeder is arranged below each second discharge port (5), the feeder includes a feeder inlet (10), a feeder pipeline (11) and a feeder outlet (12), the feeder inlet (10) is arranged opposite to the second discharge port (5), and the feeder inlet (10) is connected to the feeder outlet (12) through the feeder pipeline (11).

9. The multiple bin-merging hopper of claim 8, wherein: A conveyor is arranged in the feeder pipeline (11).

10. The multiple bin-merging hopper of claim 9, wherein: The conveyor is a belt conveyor, a scraper conveyor or a screw conveyor.

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