Power plant coal conveying device capable of preventing coal falling

Abstract

The power plant coal conveying device capable of preventing coal falling comprises a belt conveyor which is arranged obliquely, a tail end intercepting assembly is arranged at the low end of the belt conveyor, and side wing shielding assemblies are arranged on the two sides of the belt conveyor in the conveying direction; the tail end intercepting assembly comprises a tail frame, and the outer side wall of the tail frame is fixedly connected with a height adjusting mechanism. The side wing shielding assembly comprises multiple sets of vertical rods arranged on the rack on the two sides of the belt conveyor, the multiple sets of vertical rods on the same side are arranged in parallel, the top ends of the multiple sets of vertical rods on the same side are hinged to the same baffle, and a telescopic power piece hinged to the baffle is hinged to the belt conveyor. The tail end intercepting assembly is arranged, the tail frame is used for intercepting coal briquettes falling downwards, the height adjusting mechanism can be used for adjusting the height of the tail frame according to the size of the falling coal and the actual working condition, meanwhile, baffles of the side wing shielding assemblies are controlled to shield the falling coal on the side faces, and the coal briquettes are prevented from falling from the side edges.

Description

Technical Field

[0001] The invention relates to the technical field of coal transportation, and in particular to a coal transportation device for a power plant which can prevent coal from falling. Background Art

[0002] The coal transportation system for thermal power plants refers to a combination of equipment that completes the transportation and storage of coal. It includes the entire process from the coal transport vehicles entering the site to unload coal to the transportation of qualified coal into the raw coal hopper of the boiler room. The system is generally composed of four parts: coal unloading, coal loading, coal storage and coal blending, ensuring that the thermal power plant can obtain the required coal stably and continuously.

[0003] The most common conveying equipment is the belt conveyor. During the coal transportation process, since the coal has been broken, the coal blocks may slide to both sides during the upward transportation, which may easily get stuck in the coal conveyor belt or other mechanical devices. When the equipment is stuck by the falling coal, it needs to be stopped urgently. Once the emergency stop is performed, it is easy to damage the equipment or reduce the power generation efficiency. Summary of the invention

[0004] The present invention aims to solve one of the technical problems in the related art at least to a certain extent.

[0005] To achieve the above-mentioned object, the present invention proposes a coal conveying device for a power plant to prevent coal from falling, comprising an inclined belt conveyor, a tail end interception assembly is provided at the lower end of the belt conveyor, and side wing shielding assemblies are provided on both sides of the belt conveyor along the conveying direction;

[0006] The tail end interception assembly includes a tail frame arranged above the belt conveyor, the tail frame is arranged in a U-shape, two outer side walls of the tail frame facing the frame plate are fixedly connected with a height adjustment mechanism for adjusting the height of the tail frame, and the height adjustment mechanism is fixedly connected with the frames on both sides of the belt conveyor;

[0007] The side wing shielding assembly includes multiple groups of vertical poles arranged on the frames on both sides of the belt conveyor, the multiple groups of vertical poles on the same side are arranged in parallel, and the same baffle is hinged at the top of the multiple groups of vertical poles on the same side. A telescopic power part is hinged on the belt conveyor for controlling the rotation of each baffle along the hinge position, and the telescopic power part is hinged to the baffle.

[0008] The present invention arranges a tail-end intercepting assembly and uses a tail frame to intercept the coal blocks falling downwards. The height of the tail frame can be adjusted using a height adjusting mechanism according to the size of the falling coal and actual working conditions. At the same time, the baffle of the side shielding assembly is controlled to shield the coal falling from the side to prevent the coal blocks from falling from the side.

[0009] Optionally, the height adjustment mechanism includes a plurality of vertical rods arranged on the frames on both sides of the belt conveyor, a sliding sleeve is provided on each vertical rod, a connecting rod is fixedly connected between the sliding sleeve and the frame, and a height locking structure is provided between each sliding sleeve and the vertical rod.

[0010] Furthermore, a synchronization rod is fixedly connected between the multiple sliding sleeves arranged on the same side of the belt conveyor.

[0011] Furthermore, the height locking structure includes an installation groove opened on the inner wall of each of the sliding sleeves, the installation groove penetrates into the interior of the synchronization rod, a spring is provided in the installation groove along the direction perpendicular to the vertical rod, one end of the spring is fixedly connected to the installation groove, and the other end of the spring is fixedly connected to a card joint, and a plurality of card slots for inserting the card joint are provided on the vertical rod in parallel along the length direction of the vertical rod.

[0012] Furthermore, a limiting ring is provided at the opening position of the installation slot, and a limiting plate is integrally provided at one end of the clamping joint located in the installation slot, and the limiting plate and the limiting ring can be arranged in abutment with each other.

[0013] Furthermore, the end of the card connector facing the card slot is configured to be spherical.

[0014] Furthermore, the baffle is provided with a mounting hole corresponding to each position of the upright pole for the upright pole to rotate through, a hinge shaft is integrally provided between the mounting holes along the conveying direction of the conveyor belt, a hinge opening groove is provided at the top end of the upright pole for the hinge shaft to be inserted, a T-shaped pressure plate is inserted at the opening position of the hinge opening groove, the T-shaped pressure plate and the upright pole are detachably fixedly connected by screws, and the T-shaped pressure plate is provided with an arc surface at one end facing the hinge opening groove.

[0015] Furthermore, a vertical plate is provided on the baffle, and the vertical plate is arranged at an acute angle with the side of the baffle away from the belt conveyor.

[0016] Furthermore, a protective plate is provided at one end of the baffle plate facing the belt conveyor.

[0017] Furthermore, the baffle and the belt conveyor are both provided with an articulated seat hinged to the telescopic power member.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0020] Figure 1It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a front structural schematic diagram of the tail end interception assembly of the present invention;

[0022] Figure 3 It is a schematic diagram of the exploded structure of the tail end interception assembly of the present invention;

[0023] Figure 4 It is a schematic diagram of the exploded structure of the vertical rod, the sliding sleeve and the synchronous rod of the present invention;

[0024] Figure 5 It is a schematic diagram of the cutaway exploded structure of the vertical rod, the sliding sleeve and the synchronous rod of the present invention;

[0025] Figure 6 It is a structural schematic diagram of the side wing shielding assembly of the present invention;

[0026] Figure 7 It is a schematic diagram of the exploded structure of the baffle, the vertical pole and the telescopic power member of the present invention;

[0027] Figure 8 It is a schematic diagram of the exploded structure of the vertical pole, hinge shaft and cover plate of the present invention;

[0028] Fig. 9 It is a structural schematic diagram of the telescopic power member of the present invention.

[0029] Description of reference numerals:

[0030] 1. Belt conveyor; 2. Tail end interception assembly; 3. Side wing shielding assembly; 21. Vertical rod; 22. Sliding sleeve; 23. Cross rod; 24. Connecting rod; 25. Tail frame; 231. Mounting slot; 232. Spring; 233. Limiting ring; 234. Card joint; 235. Limiting plate; 236. Card slot; 31. Vertical rod; 32. Baffle; 33. Protective sticker; 34. Vertical plate; 35. Mounting hole; 36. Articulated shaft; 37. Articulated opening slot; 38. T-shaped pressure plate; 39. Arc surface; 310. Cover plate; 311. Screw; 312. Fixed seat; 313. Telescopic power part. DETAILED DESCRIPTION

[0031] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0032] The present invention provides a coal conveying device for a power plant with an anti-coal falling function. Figures 1 to 9 Elaborate in detail.

[0033] A coal conveying device for a power plant to prevent coal from falling comprises a belt conveyor 1 arranged obliquely, a tail end interception assembly 2 is arranged at a lower end of the belt conveyor 1, and side wing shielding assemblies 3 are arranged on both sides of the belt conveyor 1 along the conveying direction;

[0034] The tail end interception assembly 2 includes a tail frame 25 disposed above the belt conveyor 1, the tail frame 25 is arranged in a U-shape, and two outer side walls of the tail frame 25 facing the frame plate are fixedly connected with a height adjustment mechanism for adjusting the height of the tail frame 25, and the height adjustment mechanism is fixedly connected to the two side frames of the belt conveyor 1;

[0035] The side wing shielding assembly 3 includes multiple groups of vertical rods 31 arranged on the frames on both sides of the belt conveyor 1, the multiple groups of vertical rods 31 on the same side are arranged in parallel, and the top ends of the multiple groups of vertical rods 31 on the same side are hinged with the same baffle 32, and the belt conveyor 1 is hinged with a telescopic power member 313 for controlling the rotation of each baffle 32 along the hinge position, and the telescopic power member 313 is hinged to the baffle 32.

[0036] The present invention sets a tail-end interception component 2 and uses a tail frame 25 to intercept the coal blocks falling downwards. The height of the tail frame 25 can be adjusted using a height adjustment mechanism according to the size of the falling coal and actual working conditions. At the same time, the baffle 32 of the side shielding component 3 is controlled to shield the side falling coal to prevent the coal blocks from falling from the side.

[0037] In some embodiments, the height adjustment mechanism includes a plurality of vertical rods 21 arranged on the frames on both sides of the belt conveyor 1, a sliding sleeve 22 is provided on each of the vertical rods 21, a connecting rod 24 is fixedly connected between the sliding sleeve 22 and the surrounding frame, and a height locking structure is provided between each of the sliding sleeves 22 and the vertical rods 21. The height of the tail frame 25 can be adjusted by the sliding connection between the sliding sleeve 22 and the vertical rod 21, and the cooperation of the plurality of vertical rods 21 and the sliding sleeve 22 can play a role in the stable movement and height fixation of the tail frame 25. When the height adjustment of the tail frame 25 is completed, the height of the tail frame 25 is locked by the height locking structure, thereby completing the height fixation of the tail frame 25.

[0038] In some embodiments, a synchronization rod is fixedly connected between the multiple sliding sleeves 22 arranged on the same side of the belt conveyor 1. The setting of the synchronization rod can enable the sliding sleeves 22 arranged on the same side of the belt conveyor 1 to move synchronously, which, on the one hand, reduces the cumbersome steps of sliding the multiple sliding sleeves 22 one by one, and on the other hand, enables the multiple sliding sleeves 22 to be locked at the same height, thereby avoiding the situation where the tail frame 25 is tilted due to the different fixed heights of the multiple sliding sleeves 22, thereby avoiding the situation where the gap between the tailings and the belt conveyor 1 is enlarged due to the tilt of the tail frame 25 and the inability to intercept smaller coal blocks.

[0039] In some embodiments, the height locking structure includes a mounting groove 231 provided on the inner wall of each of the sliding sleeves 22, the mounting groove 231 is arranged to penetrate the interior of the synchronization rod, a spring 232 is arranged in the mounting groove 231 along the direction perpendicular to the vertical rod 21, one end of the spring 232 is fixedly connected to the mounting groove 231, and the other end of the spring 232 is fixedly connected to a clamping joint 234, and a plurality of clamping grooves 236 for inserting the clamping joint 234 are arranged in parallel on the vertical rod 31 along the length direction of the vertical rod 31. The arrangement of the mounting groove 231 can provide sufficient downward pressing space for the spring 232, and the spring 232 can exert pressure on the clamping joint 234, so that the clamping joint 234 can be inserted into the mounting groove 231 again and can still be reset and inserted into the clamping groove 236. The height of the tailings is locked by the cooperation of the clamping groove 236 and the clamping joint 234.

[0040] In some embodiments, a limiting ring 233 is provided at the opening of the mounting slot 231, and a limiting plate 235 is integrally provided at one end of the clamping joint 234 located in the mounting slot 231, and the limiting plate 235 can be arranged in contact with the limiting ring 233. The setting of the limiting ring 233 and the limiting plate 235 can prevent the clamping joint 234 from extending too far out of the mounting slot 231 and being separated from the mounting slot 231, so that the clamping joint 234 can work stably.

[0041] In some embodiments, the end of the clamping joint 234 facing the clamping slot 236 is set to be spherical. The spherical setting allows the staff to apply force along the length direction of the vertical rod 21 when the height needs to be adjusted. At this time, the spherical clamping joint 234 will gradually retract into the installation slot 231 under the action of the spherical surface. When it reaches the next clamping slot 236, the clamping joint 234 will be pushed out of the installation slot 231 by the spring 232 again and inserted into the clamping slot 236. This operation is repeated until the clamping joint 234 reaches the clamping slot 236 corresponding to the required height. After the clamping joint 234 is inserted into the clamping slot 236 of the height, the height locking can be completed.

[0042] In some embodiments, the baffle plate 32 is provided with a mounting hole 35 corresponding to each position of the vertical pole 31 for the vertical pole 31 to rotate through, and a hinge shaft 36 is integrally provided between the mounting holes 35 along the conveying direction of the conveyor belt. A hinge opening groove 37 is provided at the top of the vertical pole 31 for the hinge shaft 36 to be inserted, and a T-shaped pressing plate 38 is inserted at the opening position of the hinge opening groove 37. The T-shaped pressing plate 38 is detachably fixedly connected to the vertical pole 31 by screws 311, and an arc surface 39 is provided at one end of the T-shaped pressing plate 38 facing the hinge opening groove 37. The setting of the mounting hole 35 provides a clearance space for the vertical pole 31. When the baffle plate 32 rotates, the vertical pole 31 will not hinder the baffle plate 32 due to the existence of the mounting hole 35. The setting of the T-shaped pressing plate 38 can also fix the entire hinge shaft 36 to prevent the hinge shaft 36 from being separated from the intersection opening groove. The setting of the arc surface 39 can effectively fix the hinge shaft 36. At the same time, the bottom surface of the intersection opening groove is also set as the arc surface 39, so as to completely wrap the circumference of the hinge shaft 36, further fix the hinge shaft 36, and reduce the shaking or vibration of the hinge shaft 36 in the hinge opening groove 37.

[0043] In some embodiments, a vertical plate is provided on the baffle 32, and the vertical plate is arranged at an acute angle with the side of the baffle 32 away from the belt conveyor 1. The arrangement of the vertical plate can extend the shielding height of the baffle 32, thereby further shielding the coal blocks falling to the side.

[0044] In some embodiments, a protective plate 33 is provided at one end of the baffle 32 facing the belt conveyor 1. The provision of the protective plate 33 can effectively protect the baffle 32 and the belt conveyor 1, and prevent the baffle 32 from colliding with the belt conveyor 1 during the rotation process. When the baffle 32 contacts the belt conveyor 1, the protective plate 33 can be deformed to a certain extent, thereby reducing the damage to the belt conveyor 1 and the baffle 32 caused by the collision.

[0045] In some embodiments, both the baffle 32 and the belt conveyor 1 are provided with an articulated seat hinged to the telescopic power member 313 .

[0046] In the description of the present invention, it is to 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”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, 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 limiting the present invention.

[0047] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0048] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0049] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0050] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0051] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A coal conveying device for a power plant to prevent coal from falling, comprising a belt conveyor arranged obliquely, characterized in that: The lower end of the belt conveyor is provided with a tail end interception assembly, and the belt conveyor is provided with side wing shielding assemblies on both sides along the conveying direction; The tail end interception assembly includes a tail frame arranged above the belt conveyor, the tail frame is arranged in a U-shape, two outer side walls of the tail frame facing the frame plate are fixedly connected with a height adjustment mechanism for adjusting the height of the tail frame, and the height adjustment mechanism is fixedly connected with the frames on both sides of the belt conveyor; The side wing shielding assembly includes multiple groups of vertical poles arranged on the frames on both sides of the belt conveyor, the multiple groups of vertical poles on the same side are arranged in parallel, and the same baffle is hinged at the top of the multiple groups of vertical poles on the same side. A telescopic power part is hinged on the belt conveyor for controlling the rotation of each baffle along the hinge position, and the telescopic power part is hinged to the baffle.

2. A coal conveying device for power plants to prevent coal from falling as claimed in claim 1, characterized in that: The height adjustment mechanism includes a plurality of vertical rods arranged on the frames on both sides of the belt conveyor, a sliding sleeve is provided on each vertical rod, a connecting rod is fixedly connected between the sliding sleeve and the surrounding frame, and a height locking structure is provided between each sliding sleeve and the vertical rod.

3. A coal conveying device for power plants to prevent coal from falling as claimed in claim 2, characterized in that: A synchronization rod is fixedly connected between a plurality of sliding sleeves arranged on the same side of the belt conveyor.

4. A coal conveying device for power plants to prevent coal from falling as claimed in claim 3, characterized in that: The height locking structure includes an installation groove opened on the inner wall of each sliding sleeve, the installation groove penetrates into the interior of the synchronization rod, a spring is arranged in the installation groove along the direction perpendicular to the vertical rod, one end of the spring is fixedly connected to the installation groove, and the other end of the spring is fixedly connected to a card joint, and a plurality of card slots for inserting the card joint are arranged parallel to the length direction of the vertical rod.

5. The coal conveying device for power plant with coal falling prevention as claimed in claim 4, characterized in that: A limiting ring is provided at the opening position of the installation slot, and a limiting plate is integrally provided at one end of the clamping joint located in the installation slot, and the limiting plate and the limiting ring can be arranged in abutment with each other.

6. A coal conveying device for power plants to prevent coal from falling as claimed in claim 4 or 5, characterized in that: The end of the card connector facing the card slot is configured in a spherical shape.

7. The coal conveying device for power plant with coal falling prevention as claimed in claim 1, characterized in that: The baffle plate is provided with a mounting hole corresponding to each position of the upright pole for the upright pole to rotate through, a hinge shaft is integrally provided between the mounting holes along the conveying direction of the conveyor belt, a hinge opening groove is provided at the top end of the upright pole for the hinge shaft to be inserted, a T-shaped pressure plate is inserted at the opening position of the hinge opening groove, the T-shaped pressure plate is detachably fixed to the upright pole by screws, and the T-shaped pressure plate is provided with an arc surface at one end facing the hinge opening groove.

8. The coal conveying device for power plants with coal-fall prevention as claimed in claim 1, characterized in that: The baffle is provided with a vertical plate, and the vertical plate and the baffle are arranged at an acute angle at a side away from the belt conveyor.

9. The coal conveying device for power plants with coal falling prevention as claimed in claim 1, characterized in that: The baffle is provided with a protective sticker at one end facing the belt conveyor.

10. The coal conveying device for power plant with coal falling prevention as claimed in claim 1, characterized in that: The baffle plate and the belt conveyor are both provided with an articulated seat which is articulated with the telescopic power member.

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