Thermal power plant fuel crusher

Abstract

The invention relates to the technical field of fuel crushing, in particular to a thermal power plant fuel crusher which comprises a crusher body, a feeding port is formed in the outer wall of one side of the crusher body, and a discharging port is formed in the outer wall of the bottom of the crusher body. A first check block, a second check block and a third check block are sequentially and fixedly arranged on the inner wall of one side of the crushing machine body from top to bottom, impact plates are fixedly arranged on the outer walls of the first check block, the second check block and the third check block, fixing openings are further formed in the outer walls of the two sides of the crushing machine body, and rotors are rotationally arranged in the fixing openings; lining plates which are distributed at equal intervals are fixedly arranged on the outer wall of the rotor, mounting grooves which are annularly distributed at equal intervals are formed in the outer walls of the lining plates, and plate hammers are placed in the mounting grooves. Through the design of the detachable plate hammer and efficient disassembly accessories, the replacement convenience of quick-wear parts is effectively improved, the maintenance cost and downtime of equipment are reduced, and the using effect is better.

Description

Technical Field

[0001] The invention relates to the technical field of fuel crushing, in particular to a fuel crusher for a thermal power plant. Background Art

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

[0003] The impact crusher mainly utilizes a high-speed rotating plate hammer to impact the material to achieve crushing. Therefore, the plate hammer is easily worn and needs to be replaced frequently. However, the plate hammer in the existing impact crusher is not easy to disassemble and the replacement convenience is low, which makes the equipment maintenance cost high and the downtime long. Therefore, it is urgent to design a fuel crusher for a thermal power plant 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] In order to solve the above technical problems, the present invention provides the following technical solutions: a fuel crusher for a thermal power plant, comprising:

[0006] A crushing machine body, wherein a feeding port is provided on one outer wall of the crushing machine body, and a discharging port is provided on the bottom outer wall of the crushing machine body, a first stopper, a second stopper and a third stopper are fixedly provided on the inner wall of one side of the crushing machine body in order from top to bottom, and a counter-attack plate is fixedly provided on the outer walls of the first stopper, the second stopper and the third stopper; and,

[0007] A positioning mechanism, which is arranged on the outer wall of the rotor and is used to enable the locking block to be accurately inserted into the locking groove of the plate hammer when installing the plate hammer; and

[0008] An unlocking mechanism, which is arranged in the mounting groove and is used to quickly release the locking block from locking the plate hammer; and

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

[0010] As a preferred solution of the fuel crusher for a thermal power plant described in the present invention, the outer walls on both sides of the crusher body are also provided with fixing openings, and a rotor is rotatably arranged in the fixing openings, the outer wall of the rotor is fixedly provided with lining plates distributed at equal distances, the outer wall of the lining plate is provided with mounting grooves distributed in an annular manner at equal distances, and a plate hammer is placed in the mounting groove, the inner walls on both sides of the mounting groove are provided with movable grooves, and a locking block is movably arranged in the movable groove, a fixing rod is also fixedly arranged on the inner wall of the movable groove, and the locking block is sleeved on the end of the fixing rod, and a first spring is also sleeved on the outer side of the fixing rod, and one end of the first spring is sleeved on the outer side of the fixing rod. The end 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, the outer walls on both sides of the plate hammer are provided with locking grooves, and the locking block and the locking grooves match each other, a connecting shaft is fixedly provided at one end of the rotor, and a driving wheel is fixedly provided at the end of the connecting shaft; the positioning mechanism includes a plurality of rows of plug rods equidistantly distributed in a ring shape on the outer wall of the rotor, and the ends of the plug rods are semicircular, the outer wall of the plate hammer is provided with a slot matching the plug rod, and the outer wall of the plug rod is fixedly provided with a positioning piece, which is used for the locking block to fit into the locking groove when the plate hammer is in contact with the positioning piece.

[0011] As a preferred scheme of the fuel crusher of a thermal power plant described in the present invention, the unlocking mechanism comprises a movable plate movably arranged in the mounting groove, and handles are fixedly arranged at both ends of the movable plate, a push plate is fixedly arranged on the upper surface of the movable plate, and a first inclined surface is arranged at the end of the push plate, a second inclined surface is arranged at the lower side of the locking block, and the first inclined surface and the second inclined surface are in contact with each other, a push groove is provided in the lock groove, and the push plate is movably arranged in the push groove, a limiting groove is provided in the inner wall of the mounting groove, and a limiting rod inserted in the limiting groove is fixedly provided on the outer wall of the side of the movable plate away from the push plate, a second spring is also fixedly provided on the outer wall of the side of the movable plate away from the push plate, and the end of the second spring is connected to the inner wall of the mounting groove, and inspection openings are provided on the outer walls of both sides of the crusher body, and an inspection door is rotatably connected to the inspection opening by a hinge.

[0012] As a preferred solution of the fuel crusher for a thermal power plant described in the present invention, an infrared transmitter is fixedly provided on the outer wall of the crusher body, and an infrared receiver is fixedly provided on the outer wall of the inspection door for receiving infrared light emitted by the infrared transmitter when the inspection door is closed.

[0013] As a preferred embodiment of the fuel crusher for a thermal power plant described in the present invention, the loading and unloading mechanism comprises a loading and unloading port opened on the outer wall of one side of a crusher body, a rotating plate is rotatably connected in the loading and unloading port, a gripping groove is opened on the outer wall of the rotating plate, and a gripping handle is fixedly arranged in the gripping groove, a support rod is fixedly arranged on the inner wall of one side of the crusher body, and a support block is fixedly arranged on the end of the support rod, the support block and the lower surface of the rotating plate are fitted together, and a limiting component is also provided on the outer wall of one side of the crusher body, which is used to limit the rotating plate in the loading and unloading port to seal the loading and unloading port.

[0014] As a preferred solution of the fuel crusher for a thermal power plant described in the present invention, the limiting assembly includes a fixing frame fixedly arranged on the outer wall of one side of the crusher body, a clamping rod is fixedly and movably arranged through the outer wall of the fixing frame, and a gripping plate is fixedly arranged at the end of the clamping rod.

[0015] As a preferred solution of the fuel crusher for a thermal power plant described in the present invention, a baffle is fixedly provided on the outer wall of the clamping rod, 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, a clamping hole matching the end of the clamping rod is opened on the outer wall of the rotating plate, a fixing cylinder is fixedly provided on the outer wall of one side of the crushing machine body, and a positioning rod is movably provided in the fixing cylinder.

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

[0017] As a preferred solution of the fuel crusher for a thermal power plant of the present invention, a fourth spring is sleeved on the outer side of the screw rod, and the fourth spring is located in the fixing cylinder.

[0018] As a preferred solution of the fuel crusher for a thermal power plant described in the present invention, the outer wall of the rotor is provided with equidistant and annular calibration grooves, and the end of the calibration rod cooperates with the calibration grooves, so that when the calibration rod is aligned with the calibration grooves, the plate hammer just fits against the surface of the rotating plate.

[0019] The beneficial effects of the present invention are as follows: the fuel crusher for a thermal power plant provided by the present invention can add the fuel to be crushed into the crusher body through the feeding port, and the corresponding driving device can drive the driving wheel to rotate, and the driving wheel can drive the rotor to rotate through the connecting shaft, so that the plate hammer rotates together with the lining plate on the rotor. When the material enters the crushing chamber, the high-speed rotating rotor drives the plate hammer to move at a higher linear speed. When the plate hammer contacts the fuel, the kinetic energy generated by its high-speed movement is used to hit the fuel. When crushing larger blocks of fuel, the impact of the plate hammer can make the fuel break instantly, and cracks and break along the weak surface or structural defects inside it. The fuel hit by the plate hammer flies to the impact plate installed on the inner wall of the crusher body at a certain speed. When the fuel hits the impact plate, it will be subjected to a strong impact force again. After rebounding from the impact plate, the material will fall back into the plate hammer action area of ​​the rotor again, be hit by the plate hammer again, and then fly to the impact plate again, so that the material repeatedly collides and is crushed between the plate hammer and the impact plate. After multiple cycles, the material is gradually The fuel is crushed into smaller particles and finally discharged through the discharge port at the bottom of the crusher body to complete the fuel crushing operation. Since the plate hammer is a consumable part, it needs to be replaced regularly. When loading the plate hammer, the plate hammer can be sent into the crusher body with the help of the loading and unloading mechanism and directly aligned with the mounting groove on the liner, and the locking groove in the plate hammer can be accurately moved toward the locking block under the action of the positioning mechanism during the sending process. During the movement, the plate hammer first contacts the arc surface on the upper side of the locking block, which can push the locking block to move toward the movable groove and compress the first spring until the locking block is completely aligned with the locking groove. Under the resetting action of the first spring, the locking block can be stuck in the locking groove to quickly lock the plate hammer. When it is necessary to release the lock of the plate hammer, the lock block can be quickly released from the plate hammer by the unlocking mechanism, and the unlocked plate hammer can be discharged from one side of the crusher body with the help of the loading and unloading mechanism. It is very convenient to use. Through the design of detachable plate hammer and efficient disassembly accessories, the convenience of replacing wearing parts is effectively improved, the maintenance cost and downtime of equipment are reduced, and the use effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0021] Figure 1 A schematic structural diagram of a fuel crusher for a thermal power plant provided by an embodiment of the present invention;

[0022] Figure 2 A schematic cross-sectional structural diagram of a crushing machine body in a fuel crusher for a thermal power plant provided by an embodiment of the present invention;

[0023] Figure 3 A schematic structural diagram of a rotor in a fuel crusher for a thermal power plant provided by an embodiment of the present invention;

[0024] Figure 4 A schematic cross-sectional structure diagram of a liner of a fuel crusher in a thermal power plant provided by an embodiment of the present invention;

[0025] Figure 5 for Figure 4 A is an enlarged structural diagram;

[0026] Figure 6 A schematic structural diagram of a liner plate in a fuel crusher of a thermal power plant provided by an embodiment of the present invention;

[0027] Figure 7 A schematic diagram of the structure of a plate hammer in a fuel crusher of a thermal power plant provided by an embodiment of the present invention;

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

[0029] Fig. 9 A schematic structural diagram of a positioning mechanism in a fuel crusher of a thermal power plant provided by an embodiment of the present invention;

[0030] Fig.10 A schematic diagram of the structure of a movable plate in a fuel crusher of a thermal power plant provided by an embodiment of the present invention;

[0031] Fig.11 A schematic structural diagram of a support block and a limit assembly in a fuel crusher of a thermal power plant provided by an embodiment of the present invention;

[0032] Fig.12 A schematic diagram of the structure of a crushing machine body in a fuel crusher for a thermal power plant provided by an embodiment of the present invention from a first perspective;

[0033] Fig.13 for Fig.12 The enlarged structural diagram at B in FIG.

[0034] Fig.14 A schematic diagram of a half-section structure of a fixed cylinder in a fuel crusher of a thermal power plant provided by an embodiment of the present invention;

[0035] Fig.15 A schematic structural diagram of a crushing machine body in a fuel crusher for a thermal power plant provided by an embodiment of the present invention from a second perspective. DETAILED DESCRIPTION

[0036] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0037] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present 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 term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0039] like Figure 1-Figure 15As shown, a fuel crusher for a thermal power plant provided by an embodiment of the present invention comprises a crusher body 101, a charging port 102 is provided on one side 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 stopper 105, a second stopper 106 and a third stopper 107 are fixedly provided on the inner wall of one side of the crusher body 101 from top to bottom in sequence, and the outer walls of the first stopper 105, the second stopper 106 and the third stopper 107 are all fixedly provided with a counter-attack plate 106. 18. The outer walls of both sides of the crusher body 101 are also provided with fixed openings, and the rotor 104 is rotatably arranged in the fixed openings. The outer wall of the rotor 104 is fixedly provided with lining plates 108 distributed at equal distances. The outer wall of the lining plate 108 is provided with mounting grooves 110 distributed in an annular manner at equal distances, and a plate hammer 109 is placed in the mounting groove 110. The inner walls of both sides of the mounting groove 110 are provided with movable grooves 111, and a locking block 114 is movably arranged in the movable groove 111. The inner wall of the movable groove 111 is also fixedly provided with a fixing rod 112, and the locking block 114 is sleeved on the end of the fixed rod 112, and the outer side of the fixed 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, and the upper side of the locking block 114 is also provided with an arc surface, and the outer walls of both sides of the plate hammer 109 are provided with locking grooves 115, and the locking block 114 and the locking grooves 115 are matched, and a connecting shaft 116 is fixedly provided at one end of the rotor 104, and the ... A driving wheel 117 is fixedly provided at the end of the connecting shaft 116, and also includes: a positioning mechanism, which is arranged on the outer wall of the rotor 104, and is used to enable the locking block 114 to be accurately inserted into the locking groove 115 in the plate hammer 109 when installing the plate hammer 109; an unlocking mechanism, which is arranged in the installation groove 110, and is used to quickly release the lock of the plate hammer 109 by the locking block 114; a loading and unloading mechanism, which is arranged on one side of the crusher body 101, and is used to assist the plate hammer 109 in loading and unloading through one side of the crusher body 101.

[0040] The fuel to be crushed can be added into the crusher body 101 through the feeding port 102. With the help of the corresponding driving device, the driving wheel 117 can be driven to rotate. The driving wheel 117 can drive the rotor 104 to rotate through the connecting shaft 116, so that the plate 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 plate hammer 109 to move at a high linear speed. When the plate hammer 109 contacts the fuel, the kinetic energy generated by its high-speed movement is used to strike the fuel. When the crushing is large, When the fuel is in block form, the impact of the plate hammer 109 can cause the fuel to break instantly, and cracks will appear along the weak surface or structural defect inside the fuel and break it. After being hit by the plate hammer 109, the fuel flies to the impact plate 118 installed on the inner wall of the crusher body 101 at a certain speed. When the fuel hits the impact plate 118, it will be subjected to a strong counterattack force again. After rebounding from the impact plate 118, the material will fall back to the action area of ​​the plate hammer 109 of the rotor 104 again, be hit by the plate hammer 109 again, and then fly to the impact plate 118 again. In this way, the material repeatedly collides and breaks between the plate hammer 109 and the impact plate 118. After multiple cycles, the material is gradually broken into smaller particles and finally discharged through the discharge port 103 at the bottom of the crusher body 101, completing the fuel crushing operation. Since the plate hammer 109 is a consumable component, it needs to be replaced regularly. When loading the plate hammer 109, the plate hammer 109 can be sent into the crusher body 101 with the help of the loading and unloading mechanism and directly aligned with the mounting groove 110 on the liner 108. In the process of sending in, the locking groove 115 in the plate hammer 109 can be accurately moved toward the locking block 114 under the action of the positioning mechanism. During the movement, the plate hammer 109 first contacts the arc surface on the upper side of the locking block 114, which can push the locking block 114 to move. 4 moves toward the movable groove 111, and compresses the first spring 113 until the locking block 114 is completely aligned with the locking groove 115. Under the resetting action of the first spring 113, the locking block 114 can be stuck in the locking groove 115 to quickly lock the plate hammer 109. When it is necessary to release the lock of the plate hammer 109, the locking block 114 on the plate hammer 109 can be quickly released directly through the unlocking mechanism, and the unlocked plate 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. The design of the detachable plate hammer 109 and the efficient disassembly accessories effectively improves the convenience of replacing wearing parts, reduces the maintenance cost and downtime of the equipment, and has a better use effect.

[0041] As an embodiment of the present invention, please refer to Figure 8 and Fig. 9The positioning mechanism includes multiple rows of equidistantly distributed plug rods 201 in a ring shape on the outer wall of the rotor 104, and the ends of the plug rods 201 are semicircular. The outer wall of the plate hammer 109 is provided with a slot 203 that matches the plug rod 201. The outer wall of the plug rod 201 is fixed with a positioning piece 202, which is used for the locking block 114 to be just stuck in the locking slot 115 when the plate hammer 109 is fitted with the positioning piece 202. When the plate hammer 109 is installed in the installation slot 110 of the liner 108, the slot 203 can be firstly 3 Align the insert rod 201 so that the insert rod 201 is first inserted into the slot 203 during the movement of the plate hammer 109, which can calibrate the position of the plate hammer 109 and ensure that the locking block 114 can just fit into the locking slot 115. When the plate hammer 109 moves to a state where it fits with the positioning piece 202, the locking block 114 just fits into the locking slot 115. At this time, the positioning piece 202 can also play a role in lifting the plate hammer 109, so that the plate hammer 109 is more stable after installation and has a better use effect.

[0042] As an embodiment of the present invention, please refer to Figure 5 , Figure 7 , Figure 8 , Fig. 9 and Fig.10 The unlocking mechanism includes a movable plate 301 movably arranged in the mounting groove 110, and handles 302 are fixedly arranged at both ends of the movable plate 301, a push plate 303 is fixedly arranged on the upper surface of the movable plate 301, and a first inclined surface is arranged at the end of the push plate 303, a second inclined surface is arranged at the lower side of the lock block 114, and the first inclined surface and the second inclined surface are fitted together, a push groove 304 is provided in the lock groove 115, and the push plate 303 is movably arranged in the push groove 304, a limiting groove is provided on the inner wall of the mounting groove 110, and a limiting rod 306 inserted in the limiting groove is fixedly arranged on the outer wall of the movable plate 301 on the side away from the push plate 303, and a second spring 305 is also fixedly arranged on the outer wall of the movable plate 301 on the side away from the push plate 303, and the end of the second spring 305 and the mounting groove 1 10 is connected to the inner wall of the crusher body 101, and inspection openings are provided on the outer walls on both sides of the crusher body 101, and inspection doors 307 are rotatably connected to the inspection openings by hinges. When it is necessary to unlock the plate hammer 109 from the liner 108 for replacement, the inspection door 307 can be opened first, and then the handles 302 are held from both sides 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 toward the movable groove 111, until the locking block 114 is completely moved into the movable groove 111, the locking of the plate hammer 109 by the locking block 114 can be quickly released, and it is very convenient to use.

[0043] As an embodiment of the present invention, please refer to Fig.13An infrared transmitter 401 is fixedly provided on the outer wall of the crushing machine body 101, and an infrared receiver 402 is fixedly provided on the outer wall of the inspection door 307, which 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 and unload the plate hammer 109, the infrared receiver 402 can no longer receive the infrared light emitted by the infrared transmitter 401, thereby triggering the driving device for controlling the rotation of the driving wheel 117 to directly disconnect the power supply, effectively avoiding the safety hazards caused by the staff's misoperation, and making it safer to use.

[0044] As an embodiment of the present invention, please refer to Figure 1 , Figure 2 , Fig.11 and Fig.15 The loading and unloading mechanism includes a loading and unloading port 501 provided on the outer wall of one side of the crushing body 101, a rotating plate 502 is rotatably connected in the loading and unloading port 501, a gripping groove is provided on the outer wall of the rotating plate 502, and a gripping handle 503 is fixedly provided in the gripping groove to facilitate the rotation of the rotating plate 502, a supporting rod 505 is fixedly provided on the inner wall of one side of the crushing body 101, and a supporting block 504 is fixedly provided on the end of the supporting rod 505, and the supporting block 504 is fitted with the lower surface of the rotating plate 502, and a limiting component is also provided on the outer wall of one side of the crushing body 101, which is used to limit the rotating plate 502 in the loading and unloading port 501 to seal the loading and unloading port 501 When the plate hammer 109 needs to be loaded and unloaded, the limit of the limit assembly on the rotating plate 502 can be released first, so that the rotating plate 502 is in a state of being held up by the supporting block 504, and then the rotor 104 can be rotated so that the plate hammer 109 is just in a state of being in contact with the rotating plate 502. When the unlocking structure contacts the lock of the plate hammer 109, the plate hammer 109 can slide out of the crusher body 101 along the rotating plate 502. Similarly, when loading the plate hammer 109, the plate hammer 109 can also slide along the rotating plate 502 into the mounting groove 110 of the liner 108, which makes the loading and unloading process of the plate hammer 109 more convenient and the use effect better.

[0045] As an embodiment of the present invention, please refer to Figure 1 , Figure 2 , Fig.11 and Fig.15The limit assembly includes a fixing frame 601 fixedly arranged on the outer wall of one side of the crushing machine body 101, a clamping rod 602 is fixedly and movably arranged on the outer wall of the fixing frame 601, and a gripping plate 603 is fixedly arranged on the end of the clamping rod 602, a blocking piece 604 is fixedly arranged 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 blocking piece 604 The outer wall of the rotating plate 502 is provided with a locking hole 606 that matches the end of the locking rod 602. When the loading and unloading port 501 needs to be blocked, the grip plate 603 can be pulled first to compress the third spring 605, and then the rotating plate 502 can be rotated to keep the rotating plate 502 in a vertical state, and then the grip plate 603 can be released. Under the resetting action of the third spring 605, the locking rod 602 can be inserted into the locking hole 606 on the rotating plate 502, which plays a role in limiting the position of the rotating plate 502, and is very convenient to use.

[0046] As an embodiment of the present invention, please refer to Fig.12 , Fig.13 and Fig.14 A fixed cylinder 702 is also fixedly provided on the outer wall of one side of the crusher body 101, and a calibration rod 703 is movably provided in the fixed cylinder 702, a screw 705 is movably provided through the bottom end of the fixed cylinder 702, and one end of the screw 705 is connected to the calibration rod 703, a pull plate 708 is fixedly provided on the other end of the screw 705, and a positioning nut 707 is threadedly connected to the outer side of the screw 705, a fourth spring 706 is sleeved on the outer side of the screw 705, and the fourth spring 706 is located in the fixed cylinder 702, and the outer wall of the rotor 104 is provided with calibration grooves 704 which are equidistantly distributed in an annular shape, and the end of the calibration rod 703 cooperates with the calibration groove 704, so that when the calibration rod 703 is aligned with the calibration groove 704, the plate hammer 109 just fits with the surface of the rotating plate 502 When loading and unloading the plate hammer 109, the rotor 104 can be driven to rotate by the adjusting wheel 701, and the positioning rod 703 is always held against the outer surface of the rotor 104 under the elastic force of the third spring 605. When the positioning rod 703 is inserted into the positioning groove 704 on the outer side of the rotor 104, it indicates that the plate hammer 109 just fits against the surface of the rotating plate 502, which makes it more convenient to determine the position of the plate hammer 109. After the loading and unloading of the plate hammer 109 is completed, the pulling plate 708 can be pulled downward, and the positioning nut 707 on the screw 705 can be turned to move the positioning nut 707 upward to ensure that the end of the positioning rod 703 is no longer in contact with the rotor 104 after the pulling plate 708 is loosened, so as to avoid the positioning rod 703 affecting the rotation of the rotor 104 during the subsequent crushing process, and the use effect is better.

[0047] When in use, the fuel that needs to be crushed can be added to the crushing machine body 101 through the feeding port 102. With the help of the corresponding driving equipment, the driving wheel 117 can be driven to rotate. The driving wheel 117 can drive the rotor 104 to rotate through the connecting shaft 116, so that the plate 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 plate hammer 109 to move at a higher linear speed. When the plate hammer 109 comes into contact with the fuel, the kinetic energy generated by its high-speed movement is used to strike the fuel. When breaking larger pieces of fuel, the impact of the plate hammer 109 can cause the fuel to break instantly, and cracks will be generated along the weak surface or structural defects inside the fuel and break it. The fuel struck by the plate hammer 109 flies to the impact plate 118 installed on the inner wall of the crusher body 101 at a certain speed. When the fuel hits the impact plate 118, it will be subjected to another strong counterattack force. After rebounding from the impact plate 118, the material will fall back into the action area of ​​the plate hammer 109 of the rotor 104, be struck again by the plate hammer 109, and then fly to the impact plate 118 again. In this way, the material repeatedly collides and breaks between the plate hammer 109 and the impact plate 118. After multiple cycles, the material is gradually broken into smaller particles and finally discharged through the discharge port 103 at the bottom of the crusher body 101, completing the fuel crushing operation. Since the plate hammer 109 is a consumable component, it needs to be replaced regularly. When loading the plate hammer 109, the plate hammer 109 can be sent into the crusher body 101 with the help of the loading and unloading mechanism and directly aligned with the mounting groove 110 on the liner 108. In the process of sending in, the locking groove 115 in the plate hammer 109 can be accurately moved toward the locking block 114 under the action of the positioning mechanism. During the movement, the plate hammer 109 first contacts the arc surface on the upper side of the locking block 114, which can push the locking block 114 to move. 4 moves toward the movable groove 111, and compresses the first spring 113 until the locking block 114 is completely aligned with the locking groove 115. Under the resetting action of the first spring 113, the locking block 114 can be stuck in the locking groove 115 to quickly lock the plate hammer 109. When it is necessary to release the lock of the plate hammer 109, the locking block 114 on the plate hammer 109 can be quickly released directly through the unlocking mechanism, and the unlocked plate 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. The design of the detachable plate hammer 109 and the efficient disassembly accessories effectively improves the convenience of replacing wearing parts, reduces the maintenance cost and downtime of the equipment, and has a better use effect.

[0048] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangement, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0049] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0050] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0051] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A fuel crusher for a thermal power plant, characterized in that: include, A crushing machine body (101), wherein a feeding port (102) is provided on an outer wall of one side of the crushing machine body (101), and a discharging port (103) is provided on an outer wall of a bottom of the crushing machine body (101), and a first stopper (105), a second stopper (106), and a third stopper (107) are fixedly provided on an inner wall of one side of the crushing machine body (101) in order from top to bottom, and a counter-attack plate (118) is fixedly provided on the outer walls of the first stopper (105), the second stopper (106), and the third stopper (107); and, a positioning mechanism, the positioning mechanism being arranged on the outer wall of the rotor (104) and being used for causing the locking block (114) to be accurately inserted into the locking groove (115) in the plate hammer (109) when the plate hammer (109) is installed; and an unlocking mechanism, the unlocking mechanism being arranged in the mounting groove (110) and being used for quickly releasing the locking of the plate hammer (109) by the locking block (114); and, A loading and unloading mechanism is arranged on one side of the crushing machine body (101) and is used to assist the plate hammer (109) in loading and unloading through the one side of the crushing machine body (101).

2. The fuel crusher for a thermal power plant according to claim 1, characterized in that: The outer walls of both sides of the crusher body (101) are also provided with fixing openings, and a rotor (104) is rotatably arranged in the fixing openings. The outer wall of the rotor (104) is fixedly provided with lining plates (108) distributed at equal distances. The outer wall of the lining plate (108) is provided with mounting grooves (110) distributed in an annular manner at equal distances, and a plate hammer (109) is placed in the mounting groove (110). The inner walls of both sides of the mounting groove (110) are provided with movable grooves (111), and a locking block (114) is movably arranged in the movable groove (111). A fixing rod (112) is also fixedly arranged on the inner wall of the movable groove (111), and the locking block (114) is sleeved on the end of the fixing rod (112). A first spring (113) is also sleeved on the outer side of the fixing rod (112), and 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) is connected to a 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 plate hammer (109) are provided with locking grooves (115), and the locking block (114) and the locking grooves (115) are matched with each other, a connecting shaft (116) is fixedly provided at one end of the rotor (104), and a driving wheel (117) is fixedly provided at the end of the connecting shaft (116); the positioning mechanism includes A plurality of rows of insertion rods (201) are equidistantly distributed in an annular shape on the outer wall of the rotor (104), and the ends of the insertion rods (201) are semicircular. A slot (203) matching with the insertion rods (201) is provided on the outer wall of the plate hammer (109). A positioning piece (202) is fixedly provided on the outer wall of the insertion rod (201) so that the locking block (114) is exactly inserted into the locking groove (115) when the plate hammer (109) and the positioning piece (202) are in contact with each other.

3. The fuel crusher for a thermal power plant according to claim 2, characterized in that: The unlocking mechanism comprises a movable plate (301) movably arranged in the mounting groove (110), and handles (603) (302) are fixedly arranged at both ends of the movable plate (301), a push plate (303) is fixedly arranged on the upper surface of the movable plate (301), and a first inclined surface is arranged at the end of the push plate (303), a second inclined surface is arranged on the lower side of the locking block (114), and the first inclined surface and the second inclined surface are in contact with each other, a push groove (304) is opened in the locking groove (115), and the push plate (303) is movably arranged in the push groove (30 4), a limiting groove is provided on the inner wall of the installation groove (110), 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), and 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), and inspection openings are provided on the outer walls of both sides of the crushing machine body (101), and an inspection door (307) is rotatably connected to the inspection opening through a hinge.

4. The fuel crusher for a thermal power plant according to claim 3, characterized in that: An infrared transmitter (401) is fixedly provided on the outer wall of the crushing machine body (101), and an infrared receiver (402) is fixedly provided 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.

5. The fuel crusher for a thermal power plant according to claim 4, characterized in that: The loading and unloading mechanism comprises a loading and unloading port (501) provided on an outer wall of one side of a crushing machine 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); a gripping handle (503) is fixedly provided in the gripping groove; a supporting rod (505) is fixedly provided on an inner wall of one side of the crushing machine body (101); a supporting block (504) is fixedly provided at the end of the supporting rod (505); the supporting block (504) and the lower surface of the rotating plate (502) are in contact with each other; and a limiting component is further provided on the outer wall of one side of the crushing machine body (101) for limiting the rotating plate (502) in the loading and unloading port (501) to block the loading and unloading port (501).

6. The fuel crusher for a thermal power plant according to claim 5, characterized in that: The position limiting assembly comprises a fixing frame (601) fixedly arranged on an outer wall of one side of the crushing machine body (101), a clamping rod (602) is fixedly and movably arranged through the outer wall of the fixing frame (601), and a gripping plate is fixedly arranged at the end of the clamping rod (602).

7. The fuel crusher for a thermal power plant according to claim 6, characterized in that: A baffle (604) is fixedly provided 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 matches the end of the clamping rod (602), and a fixing cylinder (702) is fixedly provided on the outer wall of one side of the crushing machine body (101), and a calibration rod (703) is movably provided in the fixing cylinder (702).

8. The fuel crusher for a thermal power plant according to claim 7, characterized in that: A screw rod (705) is movably provided through the bottom end of the fixing tube (702), and one end of the screw rod (705) is connected to the calibration rod (703). A pull plate (708) is fixedly provided at the other end of the screw rod (705), and a positioning nut (707) is threadedly connected to the outer side of the screw rod (705).

9. The fuel crusher for a thermal power plant according to claim 8, characterized in that: A fourth spring (706) is sleeved on the outer side of the screw rod (705), and the fourth spring (706) is located in the fixing cylinder (702).

10. The fuel crusher for a thermal power plant according to claim 9, characterized in that: The outer wall of the rotor (104) is provided with equidistant and annularly distributed alignment grooves (704), and the end of the alignment rod (703) matches the alignment groove (704), so that when the alignment rod (703) is aligned with the alignment groove (704), the plate hammer (109) just fits against the surface of the rotating plate (502).

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