A raw coal bunker sub-bunker structure for increasing peak-shaving flexibility

Abstract

This invention relates to the field of raw coal bunkering technology, specifically a raw coal bunkering structure that increases peak-shaving flexibility. It includes a raw coal storage device comprising a raw coal bunker support frame, a raw coal bunker with its two outer walls rotatably connected to the top of the support frame, and feed inlets on both sides of the raw coal bunker, partitions connected to the inner walls of the raw coal bunker, and hoppers connected to the bottom of the support frame. By designing the raw coal bunker in a near-rhomboid shape, this invention allows it to autonomously rotate and adjust its center of gravity when its internal weight is unbalanced, resulting in more even stress distribution on the support frame. This effectively solves the problems in existing technologies, and also allows the raw coal bunker to transport different types of coal more quickly according to peak-shaving needs.

Description

Technical Field

[0001] This invention relates to the field of raw coal bunkering technology, and in particular to a raw coal bunkering structure that increases peak-shaving flexibility. Background Technology

[0002] Currently, coal blending is one of the important ways to address the tight and complex fuel supply of coal-fired power plant boilers in my country and improve the safety, economy, and environmental protection of unit operation. Normally, a boiler's raw coal bunker has one coal mill and one coal feeder, storing only one type of coal. However, to save energy and improve efficiency, technicians have improved the raw coal bunker by dividing its interior into two spaces using partitions. One side holds high-quality coal, and the other side holds low-quality coal. During peak electricity demand periods, high-quality coal is transported through the raw coal bunker; conversely, when electricity demand is not high, low-quality coal is transported through the raw coal bunker.

[0003] However, after the existing raw coal bunker is divided into compartments, once the coal in one compartment has been discharged to a certain extent, the weight of the coal in the two compartments will be different. At the same time, the weight of inferior coal is greater than that of high-quality coal. When a certain amount of high-quality coal is discharged, the weight on both sides of the raw coal bunker will be severely unbalanced. This will aggravate the deformation of the metal when it expands and contracts with temperature, which may cause the raw coal bunker to tilt, posing a certain safety risk. Summary of the Invention

[0004] In view of the problems existing in the prior art, the present invention is proposed.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a raw coal bunker compartment structure that increases peak-shaving flexibility, comprising,

[0006] A raw coal storage device includes a raw coal storage support frame, a raw coal storage bin with its outer walls on both sides rotatably connected to the top of the support frame, a feed inlet on each side of the raw coal storage bin, a partition connected to the inner wall of the raw coal storage bin, and a hopper connected to the bottom of the support frame; and;

[0007] The locking device includes a fixed plate connected to the bottom of both sides of the raw coal bunker support frame, a movable plate located below the raw coal bunker, and;

[0008] The sealing device provided on both sides of the partition includes a sealing roller that contacts the bottom of the raw coal bunker and a connecting frame that connects to both sides of the sealing roller.

[0009] As a preferred embodiment of the raw coal bunker compartment structure for increasing peak-shaving flexibility described in this invention, wherein: the outer wall on one side of the feed inlet contacts the outer wall on one side of the fixed page; both the top sides of the fixed page and the moving page are provided with sliding grooves; the bottom of the connecting frame is provided with a guide rail, which is slidably connected to the corresponding sliding groove; and the bottom of the moving page is provided with a hydraulic rod.

[0010] As a preferred embodiment of the raw coal bunker compartment structure for increasing peak-shaving flexibility described in this invention, wherein: one side of the outer wall of the hydraulic rod is connected to the bottom outer wall of the hopper, the outer wall of the connecting frame is slidably connected to the bottom inner wall of the raw coal bunker, a connecting compartment is provided on one side of the bottom of the raw coal bunker, the inner wall of the connecting compartment is slidably connected to the outer wall of the connecting frame, a moving block is provided on the outer wall of the connecting frame, a first elastic element is provided on the top of the moving block, and the top of the first elastic element is connected to the top of the inner wall of the connecting compartment.

[0011] As a preferred embodiment of the raw coal bunkering structure for increasing peak-shaving flexibility described in this invention, the raw coal bunker has an octagonal cross-sectional shape.

[0012] As a preferred embodiment of the raw coal bunker compartment structure for increasing peak-shaving flexibility described in this invention, wherein: the outer wall of the moving block is slidably connected to the inner wall of the connecting compartment, and the connecting compartment extends out from one side of the moving block; a striking device is provided at the bottom of the raw coal bunker, including a rotating plate, a spring piece connected to one side of the rotating plate, and a collision rod connected to the other side of the rotating plate.

[0013] As a preferred embodiment of the raw coal bunkering structure for increasing peak-shaving flexibility described in this invention, the side of the spring piece away from the rotating plate is provided with an angle, and the side of the moving block extending out of the connecting bunker contacts the angled end of the spring piece.

[0014] As a preferred embodiment of the raw coal bunker compartment structure for increasing peak-shaving flexibility described in this invention, the outer wall of the rotating plate is rotatably connected to a mounting frame, a stop block is provided on one side of the outer wall of the mounting frame, the stop block is located above the spring piece, and a second elastic element is provided on the top side of one side of the mounting frame, the top of the second elastic element is sleeved on the bottom of the rotating plate.

[0015] As a preferred embodiment of the raw coal bunker compartment structure for increasing peak-shaving flexibility described in this invention, the bottom of the hopper is provided with a vibration device, including a movable plate connected to the outer wall of the output end of the hydraulic rod, a third elastic element disposed at the bottom of the hopper, and a fixed ring connected to the bottom of the third elastic element.

[0016] As a preferred embodiment of the raw coal bunkering structure for increasing peak-shaving flexibility described in this invention, a magnet is provided in the middle of the movable plate, a through hole is provided in the middle of the magnet, and the magnet is located directly below the fixed ring.

[0017] As a preferred embodiment of the raw coal bunker compartment structure for increasing peak-shaving flexibility described in this invention, the bottom of the hopper is provided with a fixing frame, the fixing frame is provided with a top rod, the height of the top rod is greater than the thickness of the magnet, and the top rod is located below the central through hole of the magnet.

[0018] The beneficial effects of the present invention are as follows: By setting the raw coal bunker to a near-rhomboid shape, the present invention can automatically rotate and adjust the center of gravity when the internal weight is unbalanced, thereby making the raw coal bunker support frame more evenly stressed, effectively solving the problems in the prior art. At the same time, the raw coal bunker can also transport different types of coal more quickly according to peak demand.

[0019] Meanwhile, by setting up sealing rollers and moving blades, the flow of raw coal is made smoother and the raw coal bunker can be stably supported when transporting raw coal. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0022] Figure 2 For the present invention Figure 1 Another perspective view.

[0023] Figure 3 This is a schematic diagram showing the connection between the raw coal bunker, the locking device, and the sealing device in this invention.

[0024] Figure 4 For the present invention Figure 2 An enlarged view of region A.

[0025] Figure 5 For the present invention Figure 2 A magnified view of region B.

[0026] Figure 6 This is a schematic diagram of the raw coal storage device in this invention.

[0027] Figure 7 This is a schematic diagram of the engaging device in this invention.

[0028] Figure 8 This is a schematic diagram of the sealing device in this invention.

[0029] Figure 9 This is a schematic diagram of the striking device in this invention.

[0030] Figure 10 This is a schematic diagram of the vibration device in this invention. Detailed Implementation

[0031] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0032] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0033] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0034] Example 1

[0035] Reference Figures 1 to 8 This is the first embodiment of the present invention, which provides a raw coal bunker compartment structure to increase peak-shaving flexibility, including:

[0036] The raw coal storage device 100 includes a raw coal bunker support frame 101, a raw coal bunker 102 whose outer walls on both sides are rotatably connected to the top of the raw coal bunker support frame 101, a bearing between the raw coal bunker 102 and the raw coal bunker support frame 101, the raw coal bunker 102 having an octagonal cross-section, a feed inlet 103 on both sides of the raw coal bunker 102, a partition 104 connected to the inner wall of the raw coal bunker 102, and a hopper 105 connected to the bottom of the raw coal bunker support frame 101; and a locking device 200, including a fixing plate 201 connected to the bottom of both sides of the raw coal bunker support frame 101, and a hopper 105 located at... The movable leaf 202 is located below the raw coal bunker 102. One side of the movable leaf 202 contacts one side of the fixed leaf 201. The fixed leaf 201 and the movable leaf 202 are spliced ​​together to form a semi-circular ring. A sealing device 300 is provided on both sides of the partition 104, including a sealing roller 303 that contacts the bottom of the raw coal bunker 102. The sealing roller 303 is cylindrical and has a discharge port at the bottom of the raw coal bunker 102. The sealing roller 303 can block the discharge port. A connecting frame 302 connects to both sides of the sealing roller 303. The sealing roller 303 and the connecting frame 302... A bearing is installed between the two, and they are rotatably connected. The outer wall of one side of the feed inlet 103 contacts the outer wall of one side of the fixed page 201. Slide grooves 204 are provided on both sides of the top of the fixed page 201 and the moving page 202, and these slide grooves 204 are interconnected. A guide rail 301 is provided at the bottom of the connecting frame 302, and the guide rail 301 is slidably connected to the corresponding slide groove 204. A hydraulic rod 203 is provided at the bottom of the moving page 202, and one side of the outer wall of the hydraulic rod 203 is connected to the bottom outer wall of the hopper 105. The hydraulic rod 203 and the bottom of the hopper 105 are connected by a... The connection is bolted, and the output end of the hydraulic rod 203 passes through the hopper 105. The outer wall of the connecting frame 302 is slidably connected to the inner wall of the bottom of the raw coal bunker 102. A connecting chamber 304 is provided on one side of the bottom of the raw coal bunker 102. The inner wall of the connecting chamber 304 is slidably connected to the outer wall of the connecting frame 302. A moving block 305 is provided on the outer wall of the connecting frame 302. A first elastic element 306 is provided on the top of the moving block 305. The top of the first elastic element 306 is connected to the top of the inner wall of the connecting chamber 304. The first elastic element 306 is a compression spring. The number of first elastic elements 306 can be increased according to the requirements.

[0037] The working principle of the above components is as follows: When high-quality or low-quality coal needs to be conveyed, the hydraulic rod 203 is activated to drive the moving page 202 upward, causing the sealing roller 303 and the connecting frame 302 to move upward, lifting the high-quality or low-quality coal in the raw coal bunker 102. The high-quality coal will flow from the outlet below the sealing roller 303 to the moving page 202. The moving page 202 is curved in shape, with one side being higher than the other. Therefore, the high-quality coal will flow from the moving page 202 to another moving page 202. Similarly, the high-quality or low-quality coal will flow along the other moving page 202 to the hopper 105, and then through the hopper 105 to the conveyor belt or other conveying equipment. During the above actions, the connecting frame 302 will press the first elastic element 306 upward, and the first elastic element 306 will generate a counter-thrust force, which will provide sufficient force to the guide rail 301. The pressure causes the guide rail 301 to press against the moving page 202 to prevent the raw coal bunker 102 from moving when conveying coal blocks. When the amount of high-quality or low-quality coal in the raw coal bunker 102 is insufficient, the hydraulic rod 203 is activated to drive the moving page 202 down, so that the moving page 202 and the sealing roller 303 return to their original positions. At this time, the first elastic element 306 is no longer compressed, and the guide rail 301 can slide in the chute 204. Because the weight inside the raw coal bunker 102 is different, the side containing low-quality coal will rotate downward, and the side containing high-quality coal will rotate upward. The feed port 103 on this side will rotate to the top, so that high-quality coal can be added to the inside of the raw coal bunker 102. When adding high-quality coal, because the low-quality coal is located at the bottom, the raw coal bunker support frame 101 can be subjected to more even force, thereby preventing the raw coal bunker support frame 101 from tilting.

[0038] Meanwhile, when the density of the coal blocks in the raw coal bunker 102 is high, its friction will also increase. Therefore, when the sealing roller 303 rises, the sealing roller 303 is subjected to uneven force, and the sealing roller 303 will rotate. This will push the coal blocks to pass through the discharge port at the bottom of the raw coal bunker 102 more quickly, thereby speeding up the discharge speed.

[0039] Example 2

[0040] Reference Figure 9This is the second embodiment of the present invention. This embodiment is based on the previous embodiment, but differs in that the outer wall of the movable block 305 is slidably connected to the inner wall of the connecting chamber 304. The movable block 305 is rectangular in shape, and one side of the movable block 305 extends out of the connecting chamber 304. A striking device 400 is provided at the bottom of the raw coal bunker 102, including a rotating plate 402, which is rectangular in shape, a spring piece 403 connected to one side of the rotating plate 402, and a collision rod 405 connected to the other side of the rotating plate 402. The collision rod 405 is equipped with... A counterweight is provided. The side of the spring plate 403 away from the rotating plate 402 is provided with an angle. The side of the moving block 305 extending out of the connecting chamber 304 contacts the angled end of the spring plate 403. The outer wall of the rotating plate 402 is rotatably connected to the mounting bracket 401. A stop block 404 is provided on one side of the outer wall of the mounting bracket 401. The stop block 404 is located above the spring plate 403. A second elastic element 406 is provided on the top of one side of the mounting bracket 401. The second elastic element 406 is a compression spring. The top of the second elastic element 406 is sleeved on the bottom of the rotating plate 402.

[0041] The working principle of the above components is as follows: When the moving block 305 rises, it will drive the spring 403 to rotate upward. When the spring 403 rotates to the stop block 404, the spring 403 can no longer rotate. At this time, the moving block 305 will continue to squeeze the spring 403, and the spring 403 will deform. When the spring 403 is deformed to a certain extent, the angled end of the spring 403 will be separated from the rotating plate 402. At this time, the second elastic element 406 will push the collision rod 405 to hit the bottom of the raw coal bunker 102, thereby causing the bottom of the raw coal bunker 102 to vibrate, thus providing initial power for the raw coal and enabling it to descend more smoothly.

[0042] Example 3

[0043] Reference Figure 10 This is the third embodiment of the present invention. This embodiment is based on the previous embodiment, but the difference is that a vibration device 500 is provided at the bottom of the hopper 105. The device includes a movable plate 502 connected to the outer wall of the output end of the hydraulic rod 203, a third elastic member 503 provided at the bottom of the hopper 105, and a fixing ring 504 connected to the bottom of the third elastic member 503. The third elastic member 503 is a tension spring. A magnet 502a is provided in the middle of the movable plate 502. A through hole is provided in the middle of the magnet 502a. The magnet 502a is located directly below the fixing ring 504. A fixing frame 501 is provided at the bottom of the hopper 105. A top rod 501a is provided in the fixing frame 501. The height of the top rod 501a is greater than the thickness of the magnet 502a. The top rod 501a is located below the central through hole of the magnet 502a. The diameter of the top rod 501a is smaller than the diameter of the central through hole of the magnet 502a.

[0044] The working principle of the above components is as follows: When the output end of the hydraulic rod 203 rises, it will drive the moving plate 502 and the magnet 502a to rise, so that the magnet 502a is magnetically connected to the fixed ring 504. When the hydraulic rod 203 descends, it will drive the fixed ring 504 to descend, which will stretch the third elastic element 503. When the push rod 501a passes through the hole in the middle of the magnet 502a, it will lift the fixed ring 504, so that the magnet 502a is separated from the fixed ring 504. At this time, the third elastic element 503 will drive the fixed ring 504 to hit the hopper 105, causing the hopper 105 to vibrate, thereby preventing the raw coal from sticking to the hopper 105.

[0045] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structurally equivalent but also equivalent in structure. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0046] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the currently considered best mode for carrying out the invention, or those features that are not relevant to implementing the invention) may be omitted.

[0047] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0048] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A raw coal bunker compartmentation structure to increase peak-shaving flexibility, characterized in that: include, The raw coal storage device (100) includes a raw coal storage support frame (101), a raw coal storage silo (102) whose outer walls on both sides are rotatably connected to the top of the raw coal storage support frame (101), a feed inlet (103) on both sides of the raw coal storage silo (102), a partition (104) connected to the inner wall of the raw coal storage silo (102), and a hopper (105) connected to the bottom of the raw coal storage support frame (101); and; The locking device (200) includes a fixed plate (201) connected to the bottom of both sides of the raw coal bunker support frame (101), a movable plate (202) located below the raw coal bunker (102); and; The sealing device (300) provided on both sides of the partition (104) includes a sealing roller (303) that contacts the bottom of the raw coal bunker (102) and a connecting frame (302) that connects to both sides of the sealing roller (303). The outer wall of the feed inlet (103) is in contact with the outer wall of the fixed page (201). The fixed page (201) and the moving page (202) are provided with sliding grooves (204) on both sides of the top. The bottom of the connecting frame (302) is provided with a guide rail (301). The guide rail (301) is slidably connected to the corresponding sliding groove (204). The bottom of the moving page (202) is provided with a hydraulic rod (203). The outer wall of one side of the hydraulic rod (203) is connected to the bottom outer wall of the hopper (105), the outer wall of the connecting frame (302) is slidably connected to the bottom inner wall of the raw coal bunker (102), a connecting chamber (304) is provided on one side of the bottom of the raw coal bunker (102), the inner wall of the connecting chamber (304) is slidably connected to the outer wall of the connecting frame (302), a moving block (305) is provided on the outer wall of the connecting frame (302), a first elastic element (306) is provided on the top of the moving block (305), and the top of the first elastic element (306) is connected to the top of the inner wall of the connecting chamber (304).

2. The raw coal bunkering structure for increasing peak-shaving flexibility as described in claim 1, characterized in that: The raw coal bunker (102) has an octagonal cross-section.

3. The raw coal bunkering structure for increasing peak-shaving flexibility as described in claim 2, characterized in that: The outer wall of the movable block (305) is slidably connected to the inner wall of the connecting chamber (304), and the connecting chamber (304) extends out from one side of the movable block (305). The bottom of the raw coal bunker (102) is provided with a striking device (400), which includes a rotating plate (402), a spring piece (403) connected to one side of the rotating plate (402), and a collision rod (405) connected to the other side of the rotating plate (402).

4. The raw coal bunkering structure for increasing peak-shaving flexibility as described in claim 3, characterized in that: The side of the spring piece (403) away from the rotating plate (402) is provided with an angle, and the side of the moving block (305) extending out of the connecting chamber (304) contacts the angled end of the spring piece (403).

5. The raw coal bunkering structure for increasing peak-shaving flexibility as described in claim 4, characterized in that: The outer wall of the rotating plate (402) is rotatably connected to a mounting bracket (401). A stop block (404) is provided on one side of the outer wall of the mounting bracket (401). The stop block (404) is located above the spring piece (403). A second elastic element (406) is provided on the top side of the mounting bracket (401). The top of the second elastic element (406) is sleeved on the bottom of the rotating plate (402).

6. The raw coal bunkering structure for increasing peak-shaving flexibility as described in claim 5, characterized in that: The bottom of the hopper (105) is provided with a vibration device (500), which includes a movable plate (502) connected to the outer wall of the output end of the hydraulic rod (203), a third elastic element (503) provided at the bottom of the hopper (105), and a fixed ring (504) connected to the bottom of the third elastic element (503).

7. The raw coal bunkering structure for increasing peak-shaving flexibility as described in claim 6, characterized in that: A magnet (502a) is provided in the middle of the movable plate (502), and a through hole is provided in the middle of the magnet (502a). The magnet (502a) is located directly below the fixing ring (504).

8. The raw coal bunkering structure for increasing peak-shaving flexibility as described in claim 7, characterized in that: The bottom of the hopper (105) is provided with a fixing frame (501), and the fixing frame (501) is provided with a top rod (501a). The height of the top rod (501a) is greater than the thickness of the magnet (502a), and the top rod (501a) is located below the central through hole of the magnet (502a).

Images