Hopper shaping structure and coal feeder

Abstract

The utility model provides a hopper shaping structure and a coal feeder, the hopper shaping structure comprises a hopper and a baffle plate, the hopper is provided with a gate, the baffle plate is installed on the hopper, the bottom edge of the baffle plate extends to the range of the gate so as to shape coal flow passing through the gate, and the baffle plate has elasticity. According to the hopper shaping structure, the baffle is arranged on the hopper, the bottom edge of the baffle extends into the range of the water gate, coal passing through the water gate is shaped, and due to the fact that the baffle is elastic, when hard sundries such as gangue appear in the coal, the baffle is stressed to deform, and therefore the sundries such as the gangue are allowed to pass through. The blocking of a feed port of the hopper is avoided, the problems of scratching and damage of an annular rubber belt, overload of a motor, abrasion of a speed reducer gear and the like caused by the fact that sundries are clamped at the baffle are also avoided, the overall maintenance cost of the coal feeder is reduced, and after the sundries pass through, the baffle can restore the shape due to elasticity, so that the coal continues to be shaped. And the practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of coal feeders, and particularly to a hopper shaping structure and a coal feeder. Background Art

[0002] In a pulverized coal preparation system, a weighing coal feeder is usually a belt feeder, which consists of components such as an endless belt, a cleaning device, a feed inlet, and a shaping structure. In the prior art, a steel plate with relatively high stiffness is usually used as a baffle for the coal feeder. Its passability is poor, and impurities such as gangue in raw coal may be blocked by the baffle, leading to blockage, resulting in accidental shutdown of the coal feeder. It requires manual cleaning and maintenance in a nitrogen environment, with relatively high safety risks. In addition, impurities such as gangue are pushed by the shaping structure, which may scratch the endless belt of the coal feeder, exacerbate the wear of the reducer gears, and cause problems such as motor overload. Summary of the Utility Model

[0003] In view of this, the utility model aims to provide a hopper shaping structure and a coal feeder to solve at least one of the technical problems such as poor passability and easy blockage of the shaping structure in the prior art, and possible damage to related components of the coal feeder.

[0004] The utility model provides a hopper shaping structure, including a hopper and a baffle. The hopper is provided with a gate opening, and the baffle is installed on the hopper. The bottom edge of the baffle extends into the range of the gate opening to shape the coal flow passing through the gate opening, and the baffle has elasticity.

[0005] Further, at least one cut is provided on the baffle, and the cut extends vertically upward from the bottom edge of the baffle.

[0006] Further, the cut extends vertically upward to the top edge of the baffle to disconnect the baffle into multiple sub-baffles.

[0007] Further, the bottom edge of the baffle is in an arched shape.

[0008] Further, a first mounting portion is connected to the top edge of the baffle, and the first mounting portion is installed at the edge of the top of the gate opening through a fastener.

[0009] Further, second mounting portions are connected to the side edges on both sides of the baffle, and the second mounting portions are installed at the edges on both sides of the gate opening through fasteners.

[0010] Further, the overlapping width of the first mounting portion and the second mounting portion with the edge of the gate opening is 20 - 30 mm.

[0011] Further, the thickness of the baffle is 6 - 14 mm.

[0012] Further, the baffle is a rubber plate made of polyurethane.

[0013] The utility model further provides a coal feeder, including the hopper shaping structure described above.

[0014] In the hopper shaping structure of the utility model, a baffle is arranged on the hopper, so that the bottom edge of the baffle extends into the gate range to shape the coal passing through the gate. And because the baffle is elastic, when hard sundries such as gangue appear in the coal, the baffle deforms under force, thus allowing sundries such as gangue to pass through, avoiding blocking the feed inlet of the hopper, and also avoiding problems such as the annular belt being scratched and damaged, the motor being overloaded, and the reduction gear being worn due to sundries getting stuck at the baffle. This is beneficial to reducing the overall maintenance cost of the coal feeder. After the sundries pass through, the baffle can restore its shape due to elasticity and continue to shape the coal, which has good practicability.

[0015] The coal feeder of the utility model has all the beneficial effects of the above hopper shaping structure, which will not be elaborated here.

[0016] To make the above objects, features and advantages of the utility model more obvious and understandable, the following specific preferred embodiments are given, and in conjunction with the attached drawings, the detailed description is as follows. Description of the Drawings

[0017] In the drawings which are not necessarily drawn to scale, the same reference numerals may describe similar components in different views. The same reference numerals with letter suffixes or different letter suffixes may represent different instances of similar components. The drawings generally illustrate various embodiments by way of example and not limitation, and are used together with the description and the claims to explain the disclosed embodiments. Where appropriate, the same reference numerals are used throughout the drawings to refer to the same or similar parts. Such embodiments are illustrative and not intended to be an exhaustive or exclusive embodiment of the device or method. The drawings described herein are used to provide a further understanding of the utility model and form a part of this application. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an improper limitation of the utility model. In the drawings:

[0018] Figure 1 is a schematic structural diagram of the hopper shaping structure provided by the utility model;

[0019] Figure 2 is a schematic structural diagram of the hopper provided by the utility model;

[0020] Figure 3 is a schematic exploded view of the baffle, the first mounting part and the second mounting part provided by the utility model.

[0021] Among them, the above-mentioned drawings include the following reference numerals:

[0022] 1. Hopper; 11. Gate; 2. Baffle; 21. Cut; 22. Sub-baffle; 3. First mounting part; 4. Second mounting part. Detailed implementation mode

[0023] Next, specific embodiments of the present invention will be described in detail with reference to the drawings, but this is not a limitation of the present invention.

[0024] It should be understood that various modifications can be made to the embodiments disclosed herein. Therefore, the above description should not be regarded as a limitation, but only as an example of the embodiments. Those skilled in the art will think of other modifications within the scope and spirit of the present invention.

[0025] The drawings included in the specification and forming a part of the specification illustrate embodiments of the present invention and, together with the general description of the present invention given above and the detailed description of the embodiments given below, are used to explain the principles of the present invention.

[0026] These and other features of the present invention will become apparent from the following description of the preferred forms of the embodiments given as non-limiting examples with reference to the drawings.

[0027] It should also be understood that although the present invention has been described with reference to some specific examples, those skilled in the art can surely implement many other equivalent forms of the present invention, which have the features as described in the claims and thus are all within the protection scope defined thereby.

[0028] When combined with the drawings, the above and other aspects, features and advantages of the present invention will become more apparent in view of the following detailed description.

[0029] Hereinafter, specific embodiments of the present invention will be described with reference to the drawings; however, it should be understood that the disclosed embodiments are only examples of the present invention and can be implemented in various ways. Well-known and / or repeated functions and structures are not described in detail to avoid unnecessary or redundant details from obscuring the present invention. Therefore, the specific structural and functional details disclosed herein are not intended to be limiting, but only as a basis for the claims and a representative basis for teaching those skilled in the art to use the present invention in substantially any suitable detailed structure in various ways.

[0030] An embodiment of the present invention provides a hopper shaping structure, including a hopper 1 and a baffle 2. The hopper 1 is provided with a gate 11. The baffle 2 is installed on the hopper 1. The bottom edge of the baffle 2 extends into the range of the gate 11 to shape the coal flow passing through the gate 11, and the baffle 2 has elasticity.

[0031] Combined Figures 1 to 3 As shown, a gate 11 is provided at the bottom of the hopper 1. Coal enters the hopper 1 from the feed inlet and falls onto the lower endless belt. As the endless belt rotates, the coal moves out from the gate 11 to form a coal stream. A baffle 2 is installed on the hopper 1, and the bottom edge of the baffle 2 extends into the range of the gate 11 (the range of the gate 11 can be seen from Figure 2 and is generally rectangular in shape), so as to shape the coal passing through the gate 11.

[0032] In the hopper shaping structure of the present utility model, a baffle 2 is provided on the hopper 1, so that the bottom edge of the baffle 2 extends into the range of the gate 11 to shape the coal passing through the gate 11. And because the baffle 2 is elastic, when hard impurities such as gangue appear in the coal, the baffle 2 deforms under force, thus allowing the impurities such as gangue to pass through, avoiding blocking the feed inlet of the hopper 1, and also avoiding problems such as the endless belt being scratched and damaged, the motor being overloaded, and the reduction gear being worn due to the impurities getting stuck at the baffle 2, which is beneficial to reducing the overall maintenance cost of the coal feeder. After the impurities pass through, the baffle 2 can return to its original shape due to its elasticity, so as to continue shaping the coal, which has good practicability.

[0033] Furthermore, at least one cut 21 is provided on the baffle 2, and the cut 21 extends vertically upward from the bottom edge of the baffle 2.

[0034] Combined Figure 1 and Figure 3 As shown, a total of three cuts 21 are provided on the baffle 2, extending vertically upward from the bottom edge of the baffle 2. Different from cutting off a part of the baffle 2, the cut 21 only cuts the original baffle 2, so that the overall shape of the baffle 2 remains unchanged. When normal coal passes through, the baffle 2 still plays a shaping role. When coal containing impurities such as gangue passes through, due to the elasticity of the baffle 2, the impurities will push aside a part of the baffle 2 along the cut 21, so as to pass through the baffle 2 smoothly, avoiding the impurities getting stuck at the baffle 2. The normal coal after the impurities pass through will not generate a large thrust on the baffle 2. Therefore, the baffle 2 will automatically reset to facilitate the continuation of the coal stream shaping work.

[0035] Furthermore, the cut 21 extends vertically upward to the top edge of the baffle 2 to disconnect the baffle 2 to form a plurality of sub-baffles 22.

[0036] Combined Figure 1 and Figure 3 As shown, the cut 21 extends in the vertical direction, thus cutting off the baffle 2 to form a total of four sub-baffles 22. These four sub-baffles 22 are installed on the hopper 1 to shape the coal.

[0037] In this way, the broken baffle 2 has better passability, which is beneficial for sundries such as gangue to pass through the baffle 2 smoothly, avoiding problems such as damage to the annular belt caused by jamming of sundries.

[0038] Specifically, as shown in combination with Figure 1 and Figure 3 , the bottom edge of the baffle 2 is in an arched shape. It can be a part of a circle, an ellipse, a parabola, etc., as long as it presents a curved shape with a higher middle part and lower side parts.

[0039] In this way, it can ensure that the coal flow form formed after shaping is relatively stable.

[0040] Furthermore, a first mounting portion 3 is connected to the top edge of the baffle 2, and the first mounting portion 3 is mounted on the edge at the top of the gate 11 through fasteners, and / or, second mounting portions 4 are connected to the side edges on both sides of the baffle 2, and the second mounting portions 4 are mounted on the edges on both sides of the gate 11 through fasteners.

[0041] As shown in combination with Figure 1 and Figure 3 , the first mounting portion 3 is connected to the top edge of the baffle 2, and the second mounting portions 4 are connected to the side edges on both sides of the baffle 2. Then, the first mounting portion 3 is mounted on the top edge of the gate 11 and the second mounting portions 4 are mounted on the side edges on both sides of the gate 11 through fasteners, so that the baffle 2 is fixedly installed with the hopper 1. The first mounting portion 3 and the second mounting portions 4 can be integrally connected, or can be connected to each other by welding, bolt connection, etc., thereby further improving the connection stability. It can be understood that only one of the first mounting portion 3 and the second mounting portions 4 can also be selected, as long as the connection stability between the baffle 2 and the hopper 1 can meet the requirements.

[0042] In this way, through the arrangement of the first mounting portion 3 and / or the second mounting portions 4, the baffle 2 can be mounted on the hopper 1, improving the connection stability between the baffle 2 and the hopper 1.

[0043] Furthermore, as shown in combination with Figure 3 , the overlapping width of the first mounting portion 3 and the second mounting portions 4 with the edge of the gate 11 is 20 - 30 mm.

[0044] As shown in combination with Figures 1 to 3 , the width of the overlapping part of the first mounting portion 3 with the edge of the gate 11 is as shown by A1 in Figure 3 , A1 = 25 mm, and the width of the overlapping part of the second mounting portions 4 with the edge of the gate 11 is as shown by Figure 3As shown in A2, A2 = 25 mm. It can be understood that A1 may not be equal to A2 either, as long as the first mounting portion 3 and the second mounting portion 4 can meet the corresponding connection stability requirements. The specific size relationship is not limited here.

[0045] In this way, the connection stability between the baffle 2 and the hopper 1 is satisfied by the first mounting portion 3 and the second mounting portion 4 with a sufficient overlapping width, ensuring that the baffle 2 can achieve a shaping effect when contacting the coal material.

[0046] Furthermore, the thickness of the baffle 2 is 6 - 14 mm.

[0047] Combined with Figure 1 and Figure 3 As shown, the thickness of the baffle 2 is the dimension in the direction perpendicular to the drawing plane. In this embodiment, the thickness of the baffle 2 is 10 mm. Its specific thickness can also be designed accordingly according to the material used for the baffle 2, which is not specifically limited here.

[0048] Preferably, the baffle 2 is a rubber sheet made of polyurethane material.

[0049] In this way, the polyurethane material has good wear resistance and resilience, meeting the elastic requirements of the baffle 2. And the annular belt usually also uses polyurethane material, so a part can be directly cut from the waste annular belt to make the baffle 2, which is more environmentally friendly and convenient.

[0050] The present utility model also provides a coal feeder, including the hopper shaping structure described above.

[0051] In the coal feeder of the present utility model, a baffle 2 is provided on the hopper 1, such that the bottom edge of the baffle 2 extends into the gate opening 11 range to shape the coal material passing through the gate opening 11. And because the baffle 2 has elasticity, when hard debris such as gangue appears in the coal material, the baffle 2 deforms under force, thus allowing the debris such as gangue to pass through, avoiding blockage of the feed inlet of the hopper 1 and also avoiding problems such as the annular belt being scratched and damaged, the motor being overloaded, and the reduction gear teeth being worn due to the debris getting stuck at the baffle 2. This is beneficial to reducing the overall maintenance cost of the coal feeder. After the debris passes through, the baffle 2 can restore its shape due to elasticity and thus continue to shape the coal material, having good practicability.

[0052] In the above embodiments of the present utility model, the descriptions of each embodiment have their own focuses. For the parts not detailed in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0053] For ease of description, spatial relative terms such as "above", "over", "on the upper surface", "upper" etc. may be used herein to describe the spatial positional relationship of one device or feature to other devices or features as shown in the figures. It should be understood that the spatial relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is inverted, a device described as "above" or "over" other devices or structures will then be positioned "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both the orientations of "above" and "below". The device may also be positioned in other different ways, rotated 90 degrees or in other orientations, and the spatial relative descriptions used herein are to be interpreted accordingly.

[0054] In addition to the above, it should also be noted that the "one embodiment", "another embodiment", "embodiment" etc. mentioned in this specification refer to the specific features, structures or characteristics described in connection with that embodiment being included in at least one embodiment generally described in this application. The same expression appearing in multiple places in the specification does not necessarily refer to the same embodiment. Further, when describing a specific feature, structure or characteristic in connection with any one embodiment, it is intended that the implementation of such feature, structure or characteristic in combination with other embodiments also falls within the scope of the present utility model.

[0055] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A hopper shaping structure, characterized in that: The utility model comprises a hopper and a baffle, wherein the hopper is provided with a gate, the baffle is installed on the hopper, the bottom edge of the baffle extends to the range of the gate to shape the coal flow passing through the gate, and the baffle is elastic.

2. The hopper shaping structure according to claim 1, characterized in that: The baffle is provided with at least one cutout, and the cutout extends vertically upward from the bottom edge of the baffle.

3. The hopper shaping structure according to claim 2, characterized in that: The cutout extends vertically upward to the top edge of the baffle plate to break the baffle plate into a plurality of sub-baffle plates.

4. The hopper shaping structure according to claim 1, characterized in that: The bottom edge of the baffle is in an arched shape.

5. The hopper shaping structure according to claim 1, characterized in that: The top edge of the baffle is connected with a first mounting portion, and the first mounting portion is mounted on the edge of the top of the gate through a fastener.

6. The hopper shaping structure according to claim 5, characterized in that: The side edges of both sides of the baffle are connected with second mounting parts, and the second mounting parts are mounted on the edges of both sides of the gate through fasteners.

7. The hopper shaping structure according to claim 6, characterized in that: The overlap width between the first mounting portion and the second mounting portion and the gate edge is 20-30 mm.

8. The hopper shaping structure according to claim 1, characterized in that: The thickness of the baffle is 6-14 mm.

9. The hopper shaping structure according to claim 1, characterized in that: The baffle is a rubber plate made of polyurethane.

10. A coal feeder, characterized in that: It comprises the hopper shaping structure as described in any one of claims 1 to 9.

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