A fuel crusher for a thermal power plant

Abstract

This invention relates to the field of fuel crushing technology, and more particularly to a fuel crusher for thermal power plants. The crusher includes a crusher body with a feeding port on one outer wall and a discharge port on the bottom outer wall. A first stop, a second stop, and a third stop are fixedly arranged sequentially from top to bottom on one inner wall of the crusher body. Impact plates are fixedly installed on the outer walls of the first, second, and third stops. Fixing openings are also provided on both outer walls of the crusher body, and rotors are rotatably mounted within these openings. Evenly spaced liners are fixedly installed on the outer walls of the rotors. Evenly spaced, annularly distributed mounting grooves are provided on the outer walls of the liners, and hammer plates are placed in these grooves. This invention, through the design of detachable hammer plates and highly efficient disassembly accessories, effectively improves the convenience of replacing vulnerable parts, reduces equipment maintenance costs and downtime, and provides better performance.

Description

Technical Field

[0001] This invention relates to the field of fuel crushing technology, and in particular to a fuel crusher for thermal power plants. Background Technology

[0002] In the power generation process of thermal power plants, fuel crushing is a crucial step, directly affecting combustion efficiency and power generation quality. Impact crushers, due to their advantages such as large crushing ratio, high efficiency, and low energy consumption, are widely used in fuel crushing for thermal power plants. However, existing impact crushers for thermal power plant fuel still have some problems.

[0003] Impact crushers mainly use high-speed rotating hammers to crush materials. As a result, the hammers are easily worn and need to be replaced frequently. However, the hammers in existing impact crushers are not easy to disassemble and replace, resulting in high maintenance costs and long downtime. Therefore, there is an urgent need to design a fuel crusher for thermal power plants to solve the above problems. 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 fuel crusher for thermal power plants, comprising,

[0006] The crusher body has a feeding port on one outer wall and a discharge port on the bottom outer wall. A first stop, a second stop, and a third stop are fixedly installed sequentially from top to bottom on one inner wall of the crusher body, and impact plates are fixedly installed on the outer walls of each of the first, second, and third stopes; and...

[0007] A positioning mechanism, disposed on the outer wall of the rotor, is used to ensure that the locking block accurately engages with the locking groove in the hammer during installation; and...

[0008] An unlocking mechanism, disposed in a mounting slot, is used to quickly release the locking block from locking the hammer; and,

[0009] The loading and unloading mechanism is located on one side of the crusher body and is used to assist the hammer plate in loading and unloading through one side of the crusher body.

[0010] As a preferred embodiment of the fuel crusher for thermal power plants described in this invention, the crusher body has fixed openings on both outer walls, and a rotor is rotatably mounted in each fixed opening. The outer wall of the rotor is fixedly provided with equidistantly distributed liners. The outer wall of each liner has equidistantly distributed, annularly distributed mounting grooves, in which hammers are placed. The inner walls of both sides of each mounting groove have movable grooves, in which locking blocks are movably mounted. The inner wall of each movable groove is also fixedly provided with a fixing rod, and the locking blocks are sleeved on the ends of the fixing rods. A first spring is also sleeved on the outer side of the fixing rod. The end of the first spring is connected to the inner wall of the movable groove, and the other end of the first spring is connected to the locking block. The upper side of the locking block is also provided with an arc surface. Locking grooves are opened on both outer walls of the hammer, and the locking block and the locking grooves are matched. A connecting shaft is fixedly provided at one end of the rotor, and a drive wheel is fixedly provided at the end of the connecting shaft. The positioning mechanism includes multiple rows of equally spaced rods distributed in a ring on the outer wall of the rotor, and the ends of the rods are semi-circular. The outer wall of the hammer is provided with slots that match the rods. A positioning piece is fixedly provided on the outer wall of the rods, so that the locking block can be inserted into the locking groove when the hammer and the positioning piece are in contact.

[0011] In a preferred embodiment of the fuel crusher for thermal power plants described in this invention, the unlocking mechanism includes a movable plate movably disposed in an installation groove, with handles fixedly disposed at both ends of the movable plate. A push plate is fixedly disposed on the upper surface of the movable plate, with a first inclined surface at the end of the push plate. A second inclined surface is disposed on the lower side of the locking block, and the first and second inclined surfaces are in contact with each other. A push groove is provided in the locking groove, and the push plate is movably disposed in the push groove. A limit groove is provided on the inner wall of the installation groove, and a limit rod inserted into the limit groove is fixedly disposed on the outer wall of the movable plate away from the push plate. A second spring is also fixedly disposed on the outer wall of the movable plate away from the push plate, and the end of the second spring is connected to the inner wall of the installation groove. Inspection ports are provided on both outer walls of the crusher body, and inspection doors are rotatably connected to the inspection ports via hinges.

[0012] In a preferred embodiment of the fuel crusher for thermal power plants described in this invention, an infrared transmitter is fixedly installed on the outer wall of the crusher body, and an infrared receiver is fixedly installed on the outer wall of the maintenance door for receiving infrared light emitted by the infrared transmitter when the maintenance door is closed.

[0013] As a preferred embodiment of the fuel crusher for thermal power plants described in this invention, the loading and unloading mechanism includes a loading and unloading port opened on one side of the outer wall of the crusher body. A rotating plate is rotatably connected to the loading and unloading port. A gripping groove is opened on the outer wall of the rotating plate, and a handle is fixedly installed in the gripping groove. A support rod is fixedly installed on one side of the inner wall of the crusher body, and a support block is fixedly installed at the end of the support rod. The support block is in contact with the lower surface of the rotating plate. A limit component is also provided on one side of the outer wall of the crusher body to restrict the rotating plate in the loading and unloading port and seal the loading and unloading port.

[0014] In a preferred embodiment of the fuel crusher for thermal power plants described in this invention, the limiting component includes a fixed frame fixedly disposed on the outer wall of one side of the crusher body, a locking rod is provided through the outer wall of the fixed frame, and a gripping plate is fixedly disposed at the end of the locking rod.

[0015] As a preferred embodiment of the fuel crusher for thermal power plants described in this invention, the outer wall of the clamping rod is fixedly provided with a baffle plate, and a third spring is sleeved on the outer side of the clamping rod. One end of the third spring is connected to the inner wall of the fixed frame, and the other end of the third spring is connected to the outer wall of the baffle plate. The outer wall of the rotating plate is provided with a clamping hole that cooperates with the end of the clamping rod. A fixed cylinder is also fixedly provided on one side of the outer wall of the crusher body, and a positioning rod is movably provided in the fixed cylinder.

[0016] In a preferred embodiment of the fuel crusher for thermal power plants described in this invention, a screw is movably disposed through the bottom end of the fixed cylinder, one end of the screw is connected to a positioning rod, a pull plate is fixedly disposed at the other end of the screw, and a positioning nut is threadedly connected to the outer side of the screw.

[0017] In a preferred embodiment of the fuel crusher for thermal power plants described in this invention, a fourth spring is sleeved on the outer side of the screw, and the fourth spring is located in the fixed cylinder.

[0018] As a preferred embodiment of the fuel crusher for thermal power plants described in this invention, the outer wall of the rotor is provided with equidistant, annularly distributed alignment grooves, and the end of the alignment rod cooperates with the alignment grooves so that when the alignment rod is aligned with the alignment grooves, the hammer plate is just in contact with the surface of the rotating plate.

[0019] The beneficial effects of this invention: This invention provides a fuel crusher for thermal power plants. Fuel to be crushed can be added to the crusher body through a feeding port. With the aid of a corresponding driving device, a drive wheel rotates, which in turn drives the rotor via a connecting shaft. This causes the hammers to rotate along with the liners on the rotor. When the material enters the crushing chamber, the high-speed rotating rotor drives the hammers to move at a high linear velocity. When the hammers contact the fuel, they utilize the kinetic energy generated by their high-speed motion to strike the fuel. When crushing larger pieces of fuel, the impact of the hammers can cause the fuel to break instantly, creating cracks along its internal weak surfaces or structural defects. The fuel, after being struck by the hammers, flies towards the impact plates installed on the inner wall of the crusher body at a certain speed. When the fuel hits the impact plates, it receives another strong impact force. After rebounding from the impact plates, the material falls back into the hammer action area of ​​the rotor, is struck again by the hammers, and then flies towards the impact plates again. In this way, the material repeatedly collides and is crushed between the hammers and the impact plates. After multiple cycles, the material gradually... The material is crushed into smaller particles and discharged through the discharge port at the bottom of the crusher, completing the fuel crushing operation. Since the hammer is a consumable part, it needs to be replaced regularly. When loading the hammer, the loading and unloading mechanism can be used to feed it into the crusher and align it directly with the mounting slot on the liner. During the feeding process, the positioning mechanism causes the locking groove in the hammer to move precisely towards the locking block. During this movement, the hammer first contacts the arc surface on the upper side of the locking block, pushing the locking block into the movable slot and compressing the first spring until the locking block is fully aligned with the locking groove. Under the reset action of the first spring, the locking block is locked into the locking groove, quickly locking the hammer. When it is necessary to unlock the hammer, the unlocking mechanism can be used to quickly release the locking block from the hammer, and the loading and unloading mechanism can be used to discharge the unlocked hammer from one side of the crusher. It is very convenient to use. The design of the detachable hammer and efficient disassembly parts effectively improves the ease of replacing consumable parts, reduces equipment maintenance costs and downtime, and provides better performance. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. 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. Wherein:

[0021] Figure 1 This is a schematic diagram of the structure of a fuel crusher for a thermal power plant, provided by an embodiment of the present invention.

[0022] Figure 2 This is a cross-sectional structural diagram of the crusher body in a fuel crusher for a thermal power plant, provided by an embodiment of the present invention.

[0023] Figure 3 This is a schematic diagram of the rotor structure in a fuel crusher for a thermal power plant, provided by an embodiment of the present invention.

[0024] Figure 4 This is a cross-sectional structural schematic diagram of a fuel crusher liner for a thermal power plant provided in an embodiment of the present invention;

[0025] Figure 5 for Figure 4 Enlarged structural diagram at point A in the diagram;

[0026] Figure 6 This is a schematic diagram of the structure of a liner in a fuel crusher for a thermal power plant, provided by an embodiment of the present invention.

[0027] Figure 7 This is a schematic diagram of the structure of a hammer plate in a fuel crusher for a thermal power plant, provided by an embodiment of the present invention.

[0028] Figure 8 A schematic diagram of a half-section structure of the rotor in a fuel crusher for a thermal power plant, provided as an embodiment of the present invention;

[0029] Figure 9 This is a schematic diagram of the positioning mechanism in a fuel crusher for a thermal power plant, provided by an embodiment of the present invention.

[0030] Figure 10 This is a schematic diagram of the structure of a movable plate in a fuel crusher for a thermal power plant, provided by an embodiment of the present invention.

[0031] Figure 11 This is a schematic diagram of the structure of a support block and a limiting component in a fuel crusher for a thermal power plant, provided by an embodiment of the present invention.

[0032] Figure 12 This is a first-view structural diagram of the crusher body in a fuel crusher for a thermal power plant, provided by an embodiment of the present invention.

[0033] Figure 13 for Figure 12 Enlarged structural diagram at point B in the diagram;

[0034] Figure 14 This is a schematic diagram of a half-section of the fixed cylinder in a fuel crusher for a thermal power plant, provided by an embodiment of the present invention.

[0035] Figure 15 This is a second-view structural diagram of the crusher body in a fuel crusher for a thermal power plant, provided as an embodiment of the present invention. Detailed Implementation

[0036] 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.

[0037] 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.

[0038] 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.

[0039] like Figures 1-15As shown, an embodiment of the present invention provides a fuel crusher for a thermal power plant, including a crusher body 101. A feeding port 102 is provided on one outer wall of the crusher body 101, and a discharge port 103 is provided on the bottom outer wall of the crusher body 101. A first stop block 105, a second stop block 106, and a third stop block 107 are sequentially fixedly arranged from top to bottom on one inner wall of the crusher body 101. An impact plate 1 is fixedly arranged on the outer walls of the first stop block 105, the second stop block 106, and the third stop block 107. 18. The outer walls of both sides of the crusher body 101 are also provided with fixing openings, and a rotor 104 is rotatably installed in the fixing openings. The outer wall of the rotor 104 is fixedly provided with equidistantly distributed liners 108. The outer wall of the liners 108 is provided with equidistantly distributed annular mounting grooves 110, and a hammer 109 is placed in the mounting grooves 110. The inner walls of both sides of the mounting grooves 110 are provided with movable grooves 111, and a locking block 114 is movably installed in the movable grooves 111. The inner wall of the movable grooves 111 is also fixedly provided with a fixing rod. 112, and the locking block 114 is sleeved on the end of the fixing rod 112. The outer side of the fixing rod 112 is also sleeved with a first spring 113. One end of the first spring 113 is connected to the inner wall of the movable groove 111, and the other end of the first spring 113 is connected to the locking block 114. The upper side of the locking block 114 is also provided with an arc surface. Locking grooves 115 are opened on both outer walls of the hammer 109, and the locking block 114 and the locking grooves 115 are engaged. One end of the rotor 104 is fixedly provided with a connecting shaft 116, and the connecting shaft 116 is connected to the rotor 104. The end of the shaft 116 is fixedly provided with a drive wheel 117, and also includes: a positioning mechanism, which is provided on the outer wall of the rotor 104, and is used to cause the locking block 114 to be precisely engaged in the locking groove 115 in the hammer 109 when the hammer 109 is installed; an unlocking mechanism, which is provided in the mounting groove 110, and is used to quickly release the locking block 114 from locking the hammer 109; and a loading and unloading mechanism, which is provided on one side of the crusher body 101, and is used to assist the hammer 109 in loading and unloading through one side of the crusher body 101.

[0040] Fuel requiring crushing can be added to the crusher body 101 through the feed inlet 102. With the help of a corresponding drive device, the drive wheel 117 rotates, which in turn drives the rotor 104 via the connecting shaft 116. This causes the hammers 109 to rotate along with the liners 108 on the rotor 104. When the material enters the crushing chamber, the high-speed rotating rotor 104 drives the hammers 109 to move at a high linear velocity. When the hammers 109 come into contact with the fuel, they utilize the kinetic energy generated by their high-speed motion to strike the fuel. When the material is crushed to a larger size... When dealing with lumpy fuel, the impact of the hammer 109 can cause the fuel to break instantly, creating cracks and fracturing along its weak surfaces or structural defects. The fuel struck by the hammer 109 flies at a certain speed toward the impact plate 118 installed on the inner wall of the crusher body 101. When the fuel hits the impact plate 118, it will be subjected to a strong impact force. The material rebounding after being hit by the impact plate 118 will fall back into the action area of ​​the hammer 109 on the rotor 104, be struck by the hammer 109 again, and then fly toward the impact plate 118. In this way, the material repeatedly collides and is crushed between the hammer 109 and the impact plate 118. After multiple cycles, the material is gradually crushed into smaller particles and finally discharged through the discharge port 103 at the bottom of the crusher body 101, completing the crushing operation. Since the hammer 109 is a consumable part, it needs to be replaced regularly. When loading the hammer 109, the loading and unloading mechanism can be used to feed the hammer 109 into the crusher body 101 and directly align it with the mounting groove 110 on the liner 108. During the feeding process, the positioning mechanism can cause the locking groove 115 in the hammer 109 to move precisely towards the locking block 114. During the movement, the hammer 109 first contacts the arc surface on the upper side of the locking block 114, which can push the locking block 114. 4 moves into the movable groove 111, compressing the first spring 113 until the locking block 114 is fully aligned with the locking groove 115. Under the reset action of the first spring 113, the locking block 114 can be engaged in the locking groove 115 to quickly lock the hammer 109. When it is necessary to unlock the hammer 109, the locking block 114 can be quickly unlocked through the unlocking mechanism, and the unlocked hammer 109 can be discharged from one side of the crusher body 101 with the help of the loading and unloading mechanism. It is very convenient to use. Through the design of the detachable hammer 109 and efficient disassembly accessories, the convenience of replacing vulnerable parts is effectively improved, the maintenance cost and downtime of the equipment are reduced, and the use effect is better.

[0041] As one embodiment of the present invention, please refer to Figure 8 and Figure 9The positioning mechanism includes multiple rows of equally spaced, circularly distributed insert rods 201 on the outer wall of the rotor 104, with the ends of the insert rods 201 being semi-circular. The outer wall of the hammer 109 has slots 203 that mate with the insert rods 201. Positioning pieces 202 are fixedly provided on the outer wall of the insert rods 201, so that when the hammer 109 and the positioning pieces 202 are in contact, the locking block 114 fits perfectly into the locking groove 115. During the process of installing the hammer 109 into the mounting groove 110 of the liner plate 108, the slots 203 can be first... 3. Align the insertion rod 201 so that during the movement of the hammer 109, the insertion rod 201 is first inserted into the slot 203. This can calibrate the position of the hammer 109, ensuring that the locking block 114 can be just locked into the locking groove 115. When the hammer 109 moves to a state where it is in contact with the positioning piece 202, the locking block 114 is just locked into the locking groove 115. At this time, the positioning piece 202 can also support the hammer 109, making the installed hammer 109 more stable and with better performance.

[0042] As one embodiment of the present invention, please refer to Figure 5 , Figure 7 , Figure 8 , Figure 9 and Figure 10 The unlocking mechanism includes a movable plate 301 movably disposed in the mounting groove 110, with handles 302 fixedly disposed at both ends of the movable plate 301. A push plate 303 is fixedly disposed on the upper surface of the movable plate 301, and a first inclined surface is provided at the end of the push plate 303. A second inclined surface is provided on the lower side of the locking block 114, and the first and second inclined surfaces are in contact with each other. A push groove 304 is provided in the locking groove 115, and the push plate 303 is movably disposed in the push groove 304. A limit groove is provided on the inner wall of the mounting groove 110, and a limit rod 306 inserted into the limit groove is fixedly disposed on the outer wall of the movable plate 301 away from the push plate 303. A second spring 305 is also fixedly disposed on the outer wall of the movable plate 301 away from the push plate 303, and the end of the second spring 305 is connected to the mounting groove 110. The inner wall of the crusher body 101 is connected to the inner wall of the crusher body 108. Both outer walls of the crusher body 101 are provided with inspection ports, and inspection doors 307 are connected to the inspection ports by hinges. When the hammer 109 needs to be unlocked from the liner 108 for replacement, the inspection door 307 can be opened first, and then the handles 302 on both sides can be held to drive the movable plate 301 to move, so that the push plate 303 enters the push groove 304 and the second spring 305 is stretched. When the push plate 303 enters the push groove 304, the first inclined surface at the end of the push plate 303 will fit with the second inclined surface on the lower side of the locking block 114, thereby pushing the locking block 114 to move into the movable groove 111. Until the locking block 114 is completely moved into the movable groove 111, the locking block 114 can be quickly released from locking the hammer 109, which is very convenient to use.

[0043] As one embodiment of the present invention, please refer to Figure 13An infrared transmitter 401 is fixedly installed on the outer wall of the crusher body 101, and an infrared receiver 402 is fixedly installed on the outer wall of the inspection door 307. The receiver 402 is used to receive the infrared light emitted by the infrared transmitter 401 when the inspection door 307 is closed. When the inspection door 307 is opened to load or unload the hammer 109, the infrared receiver 402 can no longer receive the infrared light emitted by the infrared transmitter 401, thereby triggering the drive equipment used to control the rotation of the drive wheel 117 to directly disconnect the power supply, effectively avoiding safety hazards caused by operator misoperation, and making it safer to use.

[0044] As one embodiment of the present invention, please refer to Figure 1 , Figure 2 , Figure 11 and Figure 15 The loading and unloading mechanism includes a loading and unloading port 501 located on one side of the outer wall of the crusher body 101. A rotating plate 502 is rotatably connected to the loading and unloading port 501. A gripping groove is provided on the outer wall of the rotating plate 502, and a handle 503 is fixedly installed in the gripping groove to facilitate the rotation of the rotating plate 502. A support rod 505 is fixedly installed on one side of the inner wall of the crusher body 101, and a support block 504 is fixedly installed at the end of the support rod 505. The support block 504 is in contact with the lower surface of the rotating plate 502. A limit component is also provided on one side of the outer wall of the crusher body 101 to restrict the rotating plate 502 in the loading and unloading port 501 and seal the loading and unloading port 501. When it is necessary to load or unload the hammer 109, the limiting component can be released from the limiting component to the rotating plate 502, so that the rotating plate 502 is in a state supported by the support block 504. Then the rotor 104 can be rotated so that the hammer 109 is just in contact with the rotating plate 502. When the unlocking structure contacts the lock on the hammer 109, the hammer 109 can slide out of the crusher body 101 along the rotating plate 502. Similarly, when loading the hammer 109, the hammer 109 can also slide along the rotating plate 502 into the mounting groove 110 of the liner 108, making the loading and unloading process of the hammer 109 more convenient and the use effect better.

[0045] As one embodiment of the present invention, please refer to Figure 1 , Figure 2 , Figure 11 and Figure 15The limiting assembly includes a fixing frame 601 fixedly mounted on the outer wall of one side of the crusher body 101. A locking rod 602 is provided through the outer wall of the fixing frame 601, and a gripping plate 603 is fixedly mounted at the end of the locking rod 602. A baffle 604 is fixedly mounted on the outer wall of the locking rod 602, and a third spring 605 is sleeved on the outer side of the locking rod 602. One end of the third spring 605 is connected to the inner wall of the fixing frame 601, and the other end of the third spring 605 is connected to the outer wall of the baffle 604. The outer wall of plate 502 has a locking hole 606 that matches the end of locking rod 602. When it is necessary to block the loading and unloading port 501, the grip plate 603 can be pulled first to compress the third spring 605. Then, the rotating plate 502 can be rotated to keep the rotating plate 502 in a vertical state. Then, the grip plate 603 can be released. Under the reset action of the third spring 605, the locking rod 602 can be inserted into the locking hole 606 on the rotating plate 502, which can limit the position of the rotating plate 502. It is very convenient to use.

[0046] As one embodiment of the present invention, please refer to Figure 12 , Figure 13 and Figure 14 A fixed cylinder 702 is fixedly installed on one side of the outer wall of the crusher body 101, and a positioning rod 703 is movably installed in the fixed cylinder 702. A screw 705 is movably installed through the bottom end of the fixed cylinder 702, and one end of the screw 705 is connected to the positioning rod 703. A pull plate 708 is fixedly installed on the other end of the screw 705, and a positioning nut 707 is threaded to the outside of the screw 705. A fourth spring 706 is sleeved on the outside of the screw 705 and is located in the fixed cylinder 702. The outer wall of the rotor 104 is provided with positioning grooves 704 that are evenly spaced and distributed in an annular pattern. The end of the positioning rod 703 cooperates with the positioning grooves 704 so that when the positioning rod 703 is aligned with the positioning grooves 704, the hammer 109 is just in contact with the surface of the rotating plate 502. When loading and unloading the hammer 109, the rotor 104 can be rotated by adjusting the wheel 701. The positioning rod 703 is always held against the outer surface of the rotor 104 by the elastic force of the third spring 605. When the positioning rod 703 is inserted into the positioning groove 704 on the outside of the rotor 104, it indicates that the hammer 109 is just in contact with the surface of the rotating plate 502, which makes it easier to determine the position of the hammer 109. After the hammer 109 is loaded and unloaded, the pull plate 708 can be pulled down and the positioning nut 707 on the screw 705 can be rotated to move the positioning nut 707 upward. This ensures that the end of the positioning rod 703 is no longer in contact with the rotor 104 after the pull plate 708 is released, thus avoiding the impact of the positioning rod 703 on the rotation of the rotor 104 during the subsequent crushing process, resulting in better performance.

[0047] When in use, the fuel to be crushed can be added into the crusher body 101 through the feed port 102. With the help of the corresponding drive equipment, the drive wheel 117 can be driven to rotate. The drive wheel 117 can then drive the rotor 104 to rotate through the connecting shaft 116, so that the hammer 109 rotates together with the liner 108 on the rotor 104. When the material enters the crushing chamber, the high-speed rotating rotor 104 drives the hammer 109 to move at a high linear speed. When the hammer 109 comes into contact with the fuel, it uses the kinetic energy generated by its high-speed motion to strike the fuel. When crushing larger pieces of fuel, the impact of the hammer 109 can cause the fuel to break instantly, creating cracks and breaking along its internal weak surfaces or structural defects. The fuel struck by the hammer 109 flies at a certain speed toward the impact plate 118 installed on the inner wall of the crusher body 101. When the fuel hits the impact plate 118, it will be subjected to a strong impact force. The material rebounded by the impact plate 118 will fall back into the action area of ​​the hammer 109 on the rotor 104, be struck by the hammer 109 again, and then fly toward the impact plate 118. In this way, the material repeatedly collides and is crushed between the hammer 109 and the impact plate 118. After multiple cycles, the material is gradually crushed into smaller particles and finally discharged through the discharge port 103 at the bottom of the crusher body 101, completing the crushing operation. Since the hammer 109 is a consumable part, it needs to be replaced regularly. When loading the hammer 109, the loading and unloading mechanism can be used to feed the hammer 109 into the crusher body 101 and directly align it with the mounting groove 110 on the liner 108. During the feeding process, the positioning mechanism can cause the locking groove 115 in the hammer 109 to move precisely towards the locking block 114. During the movement, the hammer 109 first contacts the arc surface on the upper side of the locking block 114, which can push the locking block 114. 4 moves into the movable groove 111, compressing the first spring 113 until the locking block 114 is fully aligned with the locking groove 115. Under the reset action of the first spring 113, the locking block 114 can be engaged in the locking groove 115 to quickly lock the hammer 109. When it is necessary to unlock the hammer 109, the locking block 114 can be quickly unlocked through the unlocking mechanism, and the unlocked hammer 109 can be discharged from one side of the crusher body 101 with the help of the loading and unloading mechanism. It is very convenient to use. Through the design of the detachable hammer 109 and efficient disassembly accessories, the convenience of replacing vulnerable parts is effectively improved, the maintenance cost and downtime of the equipment are reduced, and the use effect is better.

[0048] 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.

[0049] 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.

[0050] 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.

[0051] 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 fuel crusher for thermal power plants, characterized in that: include, The crusher body (101) has a feeding port (102) on one side of its outer wall and a discharge port (103) on its bottom outer wall. A first stop (105), a second stop (106), and a third stop (107) are fixedly arranged sequentially from top to bottom on one side of the inner wall of the crusher body (101). An impact plate (118) is fixedly arranged on the outer walls of the first stop (105), the second stop (106), and the third stop (107). A positioning mechanism, disposed on the outer wall of the rotor (104), is used to cause the locking block (114) to precisely engage with the locking groove (115) in the hammer (109) when the hammer (109) is installed; and, An unlocking mechanism, disposed in a mounting slot (110), is used to quickly release the locking block (114) from the hammer (109); and, The loading and unloading mechanism is located on one side of the crusher body (101) and is used to assist the hammer plate (109) in loading and unloading through one side of the crusher body (101). The outer walls of both sides of the crusher body (101) are provided with fixing openings, and a rotor (104) is rotatably installed in the fixing openings. The outer wall of the rotor (104) is fixedly provided with equidistantly distributed liners (108). The outer wall of the liners (108) is provided with equidistantly distributed annular mounting grooves (110), and a hammer (109) is placed in the mounting grooves (110). The inner walls of both sides of the mounting grooves (110) are provided with movable grooves (111), and a locking block (114) is movably installed in the movable grooves (111). The inner wall of the movable grooves (111) is also fixedly provided with a fixing rod (112), and the locking block (114) is sleeved on the end of the fixing rod (112). The outer side of the fixing rod (112) is also sleeved with a first spring (113). One end of the first spring (113) is connected to the inner wall of the movable groove (111), and the first spring (113) is connected to the inner wall of the movable groove (111). 3) The other end is connected to the locking block (114), the upper side of the locking block (114) is also provided with an arc surface, the outer walls of both sides of the hammer (109) are provided with locking grooves (115), and the locking block (114) and the locking grooves (115) are engaged with each other, one end of the rotor (104) is fixedly provided with a connecting shaft (116), and the end of the connecting shaft (116) is fixedly provided with a drive wheel (117); the positioning mechanism includes Multiple rows of equally spaced, ring-shaped inserts (201) are arranged on the outer wall of the rotor (104), and the ends of the inserts (201) are semi-circular. The outer wall of the hammer (109) is provided with slots (203) that cooperate with the inserts (201). The outer wall of the inserts (201) is fixedly provided with positioning pieces (202) so that when the hammer (109) and the positioning pieces (202) are in contact, the locking block (114) can be just inserted into the locking groove (115).

2. The fuel crusher for thermal power plants as described in claim 1, characterized in that: The unlocking mechanism includes a movable plate (301) movably disposed in the mounting groove (110), and handles (302) are fixedly disposed at both ends of the movable plate (301). A push plate (303) is fixedly disposed on the upper surface of the movable plate (301), and a first inclined surface is disposed at the end of the push plate (303). A second inclined surface is disposed on the lower side of the locking block (114), and the first and second inclined surfaces are in contact with each other. A push groove (304) is opened in the locking groove (115), and the push plate (303) is movably disposed in the push groove (304). In the installation groove (110), a limiting groove is provided on the inner wall, and a limiting rod (306) inserted into the limiting groove is fixedly provided on the outer wall of the movable plate (301) away from the push plate (303). A second spring (305) is also fixedly provided on the outer wall of the movable plate (301) away from the push plate (303), and the end of the second spring (305) is connected to the inner wall of the installation groove (110). Inspection ports are provided on both outer walls of the crusher body (101), and an inspection door (307) is rotatably connected to the inspection port through a hinge.

3. The fuel crusher for thermal power plants as described in claim 2, characterized in that: An infrared transmitter (401) is fixedly installed on the outer wall of the crusher body (101), and an infrared receiver (402) is fixedly installed on the outer wall of the inspection door (307) for receiving infrared light emitted by the infrared transmitter (401) when the inspection door (307) is closed.

4. The fuel crusher for thermal power plants as described in claim 3, characterized in that: The loading and unloading mechanism includes a loading and unloading port (501) opened on one side of the outer wall of the crusher body (101). A rotating plate (502) is rotatably connected in the loading and unloading port (501). A gripping groove is opened on the outer wall of the rotating plate (502), and a handle (503) is fixedly installed in the gripping groove. A support rod (505) is fixedly installed on one side of the inner wall of the crusher body (101), and a support block (504) is fixedly installed at the end of the support rod (505). The support block (504) and the lower surface of the rotating plate (502) are in contact. A limiting component is also provided on one side of the outer wall of the crusher body (101) to restrict the rotating plate (502) in the loading and unloading port (501) and block the loading and unloading port (501).

5. The fuel crusher for thermal power plants as described in claim 4, characterized in that: The limiting component includes a fixed frame (601) fixedly installed on the outer wall of one side of the crusher body (101), a locking rod (602) is provided through the outer wall of the fixed frame (601), and a gripping plate is fixedly installed at the end of the locking rod (602).

6. The fuel crusher for thermal power plants as described in claim 5, characterized in that: A baffle (604) is fixedly installed on the outer wall of the clamping rod (602), and a third spring (605) is sleeved on the outer side of the clamping rod (602). One end of the third spring (605) is connected to the inner wall of the fixing frame (601), and the other end of the third spring (605) is connected to the outer wall of the baffle (604). The outer wall of the rotating plate (502) is provided with a clamping hole (606) that cooperates with the end of the clamping rod (602). A fixing cylinder (702) is also fixedly installed on one side of the outer wall of the crusher body (101), and a positioning rod (703) is movably installed in the fixing cylinder (702).

7. The fuel crusher for thermal power plants as described in claim 6, characterized in that: The bottom end of the fixed cylinder (702) is movably provided with a screw (705), and one end of the screw (705) is connected to the positioning rod (703). The other end of the screw (705) is fixedly provided with a pull plate (708), and the outer side of the screw (705) is threaded with a positioning nut (707).

8. The fuel crusher for thermal power plants as described in claim 7, characterized in that: A fourth spring (706) is sleeved on the outside of the screw (705), and the fourth spring (706) is located in the fixed cylinder (702).

9. The fuel crusher for thermal power plants as described in claim 8, characterized in that: The outer wall of the rotor (104) is provided with equidistant, annularly distributed alignment grooves (704), and the end of the alignment rod (703) cooperates with the alignment grooves (704) so ​​that when the alignment rod (703) is aligned with the alignment grooves (704), the hammer (109) is just in contact with the surface of the rotating plate (502).

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