Fuel treatment device

Abstract

The embodiment of the invention provides a fuel treatment device. The fuel treatment device comprises a treatment box, a screening assembly, a crushing assembly and a drying mechanism. The treatment box is provided with a feeding port and a discharging groove, and the discharging groove corresponds to the screening assembly. The crushing assembly is arranged in the treatment box and corresponds to the feeding opening, and the crushing assembly is used for crushing the fuel fed into the treatment box; the screening assembly is arranged in the treatment box and corresponds to the crushing assembly, and the screening assembly is used for screening the crushed fuel; and the drying mechanism communicates with the discharging groove, and the drying mechanism is used for drying the screened fuel output by the discharging groove. The crushing assembly, the screening assembly and the drying mechanism arranged on the fuel treatment device are used for crushing, screening and drying fire coal of the thermal power plant, the quality of the fire coal of the thermal power plant is improved, the combustion stability of the fire coal is promoted, meanwhile, the combustion efficiency of the fire coal is improved, and the loss caused by incomplete combustion of the fuel is reduced; and the high combustion rate of fire coal of a thermal power plant is ensured.

Description

TECHNICAL FIELD

[0001] Embodiments of the present disclosure belong to the technical field of fuel processing, and particularly relate to a fuel processing device. BACKGROUND

[0002] As an important foundation for national economic development, thermal power plants not only provide power production, but also consume a large amount of energy and produce corresponding environmental pollution. With the continuous development and construction of new energy, traditional energy power generation still plays a very important role, but at the same time it also faces severe challenges. Therefore, the introduction and implementation of the energy-saving system of the thermal power plant is particularly important, which can help the thermal power plant to reduce energy consumption, improve energy utilization efficiency, and reduce environmental pollution, thereby maintaining strong competitiveness.

[0003] At present, the thermal power plant adopts control on coal consumption, power consumption and water consumption for energy-saving methods, but the existing reduction of coal consumption lacks a special device for crushing, screening and drying treatment of coal, which is difficult to effectively improve the quality of fuel and promote the stability of coal combustion. At the same time, due to the low quality of the coal, the combustion efficiency is reduced, and the coal combustion is not complete, therefore, it is urgent to design a special device to solve the above problems. SUMMARY

[0004] Embodiments of the present disclosure aim to at least solve one of the technical problems existing in the prior art, and provide a fuel processing device.

[0005] In one aspect of embodiments of the present disclosure, a fuel processing device is provided, comprising: a processing box, a screening assembly, a crushing assembly and a drying mechanism; the processing box has a feeding port and a discharge chute, and the discharge chute is correspondingly arranged with the screening assembly; The crushing assembly is arranged in the processing box and correspondingly arranged with the feeding port, and the crushing assembly is used for crushing the fuel input into the processing box; The screening assembly is arranged in the processing box and correspondingly arranged with the crushing assembly, and the screening assembly is used for screening the crushed fuel; The drying mechanism is in communication with the discharge chute, and the drying mechanism is used for drying the fuel output from the discharge chute after screening.

[0006] Further, it further comprises a mounting frame and a feeding mechanism; the mounting frame is arranged at the bottom end of the processing box and is used for supporting the processing box; the feeding mechanism is arranged between the discharge port of the discharge chute and the drying mechanism, and is used for conveying the fuel output from the discharge port to the drying mechanism.

[0007] Further, it further comprises a hopper arranged at the top of the processing box, and the hopper corresponds in position to the feeding port.

[0008] Further, the first material guide groove, the second material guide groove, the first collection groove and the second collection groove are further included; The first material guide groove and the second material guide groove are both arranged in the processing box corresponding to the position of the screening assembly; the first collection groove is arranged corresponding to the first material guide groove, and is used for collecting the material guided by the first material guide groove; the second collection groove is arranged corresponding to the second material guide groove, and is used for collecting the material guided by the second material guide groove.

[0009] Optionally, the crushing assembly includes a crushing unit, a driving unit and a transmission unit; The crushing unit includes a first crushing block and a second crushing block arranged in a spaced relationship; the second crushing block is in transmission connection with the driving unit through the transmission unit, wherein the driving force of the driving unit is transmitted to the second crushing block through the transmission unit, so that the second crushing block moves relative to the first crushing block to crush the fuel in the gap between the first crushing block and the second crushing block.

[0010] Optionally, the transmission unit includes a mounting rod, a first pulley, a rotating shaft, a second pulley, a rotating disc and a belt; the second crushing block is provided with a sliding groove; The mounting rod is arranged in the processing box; the rotating shaft is arranged in the mounting rod; the rotating disc and the second pulley are both arranged in the rotating shaft; the first pulley is arranged in the output shaft of the driving unit; the belt is wound around the first pulley and the second pulley; The rotating disc is further provided with a lever, and the lever is slidingly connected in the sliding groove.

[0011] Optionally, the screening assembly includes a first screen, a second screen, a first connecting rod and a second connecting rod; the processing box includes opposite first and second side walls, and the first screen and the second screen are arranged corresponding to each other; The first end of the first screen is slidingly connected with the first side wall, and the second end of the first screen is hingedly connected with the second side wall; the first end of the second screen is hingedly connected with the second side wall, and the second end of the second screen is slidingly connected with the discharge groove; The first connecting rod is hingedly connected between the second crushing block and the first screen, and the second connecting rod is hingedly connected between the first screen and the second screen.

[0012] Optionally, the screening assembly further includes a first sliding structure and a second sliding structure; the first sliding structure includes a mounting seat and an elastic member; the first end of the first screen is provided with a first sliding connecting member, and the second end of the second screen is provided with a second sliding connecting member; The mounting seat is provided with a first annular sliding groove, wherein the first annular sliding groove is matched with the first sliding connecting piece to realize the sliding connection between the mounting seat and the first screen mesh. The second sliding structure comprises a mounting plate provided with a second annular sliding groove, wherein the second annular sliding groove is matched with the second sliding connecting piece to realize the sliding connection between the mounting plate and the second screen mesh.

[0013] Further, a guide plate is arranged between the first screen mesh and the second screen mesh, and the guide plate is used to guide the fuel screened by the first screen mesh to the second screen mesh.

[0014] Optionally, the drying mechanism comprises a box body, a drying box, a mounting shaft, an annular special material groove and a driving structure. The drying box is arranged in the box body, the driving structure is arranged in the box body, the mounting shaft is rotatably arranged in the drying box, one end of the mounting shaft is engaged with the output shaft of the driving structure, and the annular special material groove is arranged in the mounting shaft.

[0015] The beneficial effects of the embodiments of the present disclosure include: The crushing assembly, the screening assembly and the drying mechanism arranged by the fuel processing device are used to crush, screen and dry the coal of the thermal power plant, so as to improve the quality of the coal of the thermal power plant, promote the stable combustion of the coal, improve the combustion efficiency of the coal, reduce the loss of incomplete combustion of the fuel, and ensure the high combustion rate of the coal of the thermal power plant.

[0016] The above-mentioned functions are provided by the waste heat recovery device, the fuel processing device, the turbine flow device and the frequency conversion speed regulation device, which can improve the energy utilization efficiency, reduce the energy consumption and waste, and effectively realize the energy saving and emission reduction and sustainable development of the thermal power plant. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 FIG. 1 is a structural schematic view of a fuel processing device according to an embodiment of the present disclosure; Figure 2 FIG. 2 is a structural schematic view of a rotating disc according to another embodiment of the present disclosure; Figure 3 FIG. 3 is a structural schematic view of a drying mechanism according to an embodiment of the present disclosure.

[0018] In the figure, 1, mounting frame; 2, processing box; 3, crushing assembly; 4, screening assembly; 5, drying mechanism; 6, hopper; 7, first material guide groove; 8, second material guide groove; 9, first collection groove; 10, second collection groove; 11, material guide plate; 12, discharge groove; 13, first crushing block; 14, second crushing block; 15, fixed plate; 16, crushing rod; 17, groove; 18, chute; 19, servo motor; 20, first pulley; 21, rotating shaft; 22, mounting rod; 23, second pulley; 231, belt; 24, rotating disc; 25, lever; 26, first screen; 27, second screen; 28, mounting seat; 29, spring; 30, mounting plate; 31, first connecting rod; 32, second connecting rod; 33, Roots blower; 331, fixed seat; 34, feeding pipeline; 35, box body; 36, support frame; 37, drying box; 38, through hole; 39, dust cover; 40, mounting shaft; 41, annular material guide groove; 42, bevel gear one; 43, housing; 44, driving motor; 45, bevel gear two; 46, air supply pipeline; 47, air blower; 48, heater. DETAILED DESCRIPTION

[0019] In order for those skilled in the art to better understand the technical solutions of the present disclosure, the present disclosure will be further described in detail below in combination with the drawings and specific embodiments.

[0020] The embodiments of the present application will be further described in detail below in combination with the drawings and examples. The detailed description of the following examples and the drawings are used to exemplarily illustrate the principles of the present application, but cannot be used to limit the scope of the present application, that is, the present application is not limited to the described embodiments. In the description of the present application, it should be noted that, unless otherwise specified, the meaning of "a plurality of" is two or more; the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer" and the like only serves to facilitate the description of the present application and simplify the description, and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" and the like are only for descriptive purposes and cannot be understood as indicating or implying relative importance. "Vertical" is not strictly vertical, but within the allowable error range. "Parallel" is not strictly parallel, but within the allowable error range.

[0021] In the description of the present application, it should also be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0022] As shown in Figures 1-3 FIG. 1 is a schematic view of a fuel processing device. The fuel processing device comprises a processing box 2, a screening assembly 4, a crushing assembly 3 and a drying mechanism 5. The processing box 2 has a feeding port and a discharge slot 12 corresponding to the screening assembly 4.

[0023] The crushing assembly 3 is arranged in the processing box 2 and corresponds to the feeding port. The crushing assembly 3 is used for crushing the fuel fed into the processing box 2. The screening assembly 4 is arranged in the processing box 2 and corresponds to the crushing assembly 3. The screening assembly 4 is used for screening the crushed fuel. The drying mechanism 5 is in communication with the discharge slot 12. The drying mechanism 5 is used for drying the fuel screened and output from the discharge slot 12.

[0024] In some embodiments, the fuel is coal.

[0025] In some embodiments, the fuel processing device further comprises a mounting frame 1 and a feeding mechanism. The mounting frame 1 is arranged at the bottom end of the processing box 2 and is used for supporting the processing box 2. The feeding mechanism is arranged between the discharge port of the discharge slot 12 and the drying mechanism 5 and is used for conveying the fuel output from the discharge port to the drying mechanism 5.

[0026] In some embodiments, the fuel processing device further comprises a hopper 6. The hopper 6 is arranged at the top of the processing box 2 and corresponds to the position of the feeding port.

[0027] In some embodiments, the fuel processing device further comprises a first guide slot 7, a second guide slot 8, a first collection slot 9 and a second collection slot 10.

[0028] The first guide slot 7 and the second guide slot 8 correspond to the position of the screening assembly 4 and are arranged in the processing box 2. The first collection slot 9 corresponds to the first guide slot 7 and is used for collecting the material guided by the first guide slot 7. The second collection slot 10 corresponds to the second guide slot 8 and is used for collecting the material guided by the second guide slot 8.

[0029] In some embodiments, the crushing assembly 3 comprises a crushing unit, a driving unit and a transmission unit. The crushing unit comprises a first crushing block 13 and a second crushing block 14 arranged in opposition. The second crushing block 14 is in transmission connection with the driving unit through the transmission unit. The driving force of the driving unit is transmitted to the second crushing block 14 through the transmission unit, so that the second crushing block 14 moves relative to the first crushing block 13 to crush the fuel in the gap between the first crushing block 13 and the second crushing block 14.

[0030] In some embodiments, the transmission unit comprises a mounting rod 22, a first pulley 20, a rotating shaft 21, a second pulley 23, a rotating disc 24 and a belt 231. The second crushing block 14 is provided with a chute 18.

[0031] The mounting rod 22 is arranged on the processing box 2, the rotating shaft 21 is arranged on the mounting rod 22, the rotating disc 24 and the second pulley 23 are arranged on the rotating shaft 21, and the first pulley 20 is arranged on the output shaft of the driving unit; the belt 231 is arranged around the first pulley 20 and the second pulley 23, wherein the rotating disc 24 is further provided with the push rod 25, and the push rod 25 is slidingly connected in the sliding groove 18.

[0032] In some embodiments, the screening assembly 4 comprises a first screen 26, a second screen 27, a first connecting rod 31 and a second connecting rod 32. The processing box 2 comprises opposite first and second side walls, and the first screen 26 and the second screen 27 are arranged correspondingly. The first end of the first screen 26 is slidingly connected with the first side wall, and the second end of the first screen 26 is hingedly connected with the second side wall. The first end of the second screen 27 is hingedly connected with the second side wall, and the second end of the second screen 27 is slidingly connected with the discharge chute 12. The first connecting rod 31 is hingedly connected between the second crushing block 14 and the first screen 26, and the second connecting rod 32 is hingedly connected between the first screen 26 and the second screen 27.

[0033] In some embodiments, the screening assembly 4 further comprises a first sliding structure and a second sliding structure. The first sliding structure comprises a mounting seat 28 and an elastic member, and the first end of the first screen 26 is provided with a first sliding connecting member, and the second end of the second screen 27 is provided with a second sliding connecting member.

[0034] The mounting seat 28 is provided with a first annular sliding groove, and the mounting seat 28 and the first screen 26 are slidingly connected through the matching installation of the first annular sliding groove and the first sliding connecting member. The mounting seat 28 is connected with the first side wall through the elastic member.

[0035] The second sliding structure comprises a mounting plate 30 provided with a second annular sliding groove, and the mounting plate 30 and the second screen 27 are slidingly connected through the matching installation of the second annular sliding groove and the second sliding connecting member.

[0036] In some embodiments, the elastic member is a spring 29.

[0037] In some embodiments, the fuel processing device further comprises a guide plate 11 arranged between the first screen 26 and the second screen 27, and the guide plate 11 is used for guiding the fuel screened by the first screen 26 to the second screen 27.

[0038] In some embodiments, the drying mechanism 5 comprises a box body 35, a drying box 37, a mounting shaft 40, an annular foreign material chute 41 and a driving structure.

[0039] The drying chamber 37 is disposed inside the chamber body 35, the drive structure is disposed inside the chamber body 35, and the mounting shaft 40 is rotatably disposed inside the drying chamber 37, with one end of the mounting shaft 40 meshing with the output shaft of the drive structure. An annular feed chute 41 is disposed on the mounting shaft 40. The drying chamber 37 and the chamber body 35 have feed inlets at the feed ends of the annular feed chute 41, allowing fuel output from the discharge chute 12 to enter the drying chamber 37.

[0040] In some embodiments, the driving structure is a drive motor 44.

[0041] A specific example 1 provided in this disclosure includes: such as Figure 1 As shown, the fuel processing device includes a mounting frame 1, with a processing box 2 embedded in the top of the mounting frame 1. The processing box 2 contains a crushing component 3 and a screening component 4. The processing box 2 has a feeding port and a discharge chute, with the discharge chute 12 at the bottom of the processing box 2 connected to a feeding mechanism. A drying mechanism 5 is located on one side of the mounting frame 1, and the feeding mechanism is connected to the drying mechanism via a feeding pipe 34.

[0042] A hopper 6 is installed at the feeding port on the top of the processing box 2. A first guide trough 7 and a second guide trough 8 are respectively embedded in the side walls of the processing box 2. A first collection trough 9 and a second collection trough 10 are symmetrically installed on the top of the mounting frame 1, and are respectively positioned below the discharge ports of the first guide trough 7 and the second guide trough 8. One side of the guide plate 11 is fixedly installed on the inner wall of the right side of the processing box 2, and the discharge trough 12 is located at the bottom of the processing box 2.

[0043] The crushing assembly 3 includes a crushing unit, a driving unit, and a transmission unit. The crushing unit includes a first crushing block 13 and a second crushing block 14. The first crushing block 13 is fixedly installed on the top of the inner wall of the processing box 2, and a fixing plate 15 is fixedly installed on the inner wall of the right side of the processing box 2. The second crushing block 14 is slidably connected to the top of the fixing plate 15, and a plurality of crushing rods 16 are correspondingly arranged on the adjacent sides of the first crushing block 13 and the second crushing block 14. A groove 17 is provided on one side of the second crushing block 14, and a sliding groove 18 is embedded in the rear side wall of the groove 17.

[0044] The drive unit includes a servo motor 19, which is fixedly mounted on the top of the mounting plate 15.

[0045] The transmission unit includes a mounting rod 22, a first pulley 20, a rotating shaft 21, a second pulley 23, a turntable 24, and a belt 231. The first pulley 20 is fixedly mounted on the output shaft of the servo motor 19. The rotating shaft 21 is fixedly mounted on the right side of the inner wall of the processing box 2 via the mounting rod 22, and the second pulley 23 and the turntable 24 are fixedly mounted at the front and rear ends of the rotating shaft 21, respectively. The second pulley 23 is connected to the first pulley 20 via the belt 231, and a lever 25 is mounted on the turntable 24 away from the center, with one end of the lever 25 slidably connected in the slide groove 18.

[0046] The screening assembly 4 includes a first screen 26 and a second screen 27. One end of the first screen 26 and the second screen 27 are hinged to the inner wall on the left side of the processing box 2. The mounting base 28 is fixedly installed on the inner wall of the processing box 2 by several springs 29, and the other end of the first screen 26 is slidably connected to the mounting base 28. The mounting plate 30 is fixedly installed on the top of the discharge chute 12, and the other end of the second screen 27 is slidably connected to the mounting plate 30. The second crushed block 14 and the first screen 26 are hinged by a first connecting rod 31, and the first screen 26 and the second screen 27 are hinged by a second connecting rod 32.

[0047] The feeding mechanism includes a Roots blower 33 and a feeding pipe 34. The feeding pipe 34 is connected to the discharge port of the discharge trough 12. The Roots blower 33 is fixedly connected to the mounting frame 1 by a fixed base 331. One end of the feeding pipe 34 is connected to the Roots blower 33, and the other end is connected to the drying box 37 and the feeding port of the box body 35 corresponding to the feeding end position of the annular foreign material trough 41.

[0048] The drying mechanism 5 includes a housing 35, which is fixedly mounted on the top of a support frame 36. A drying chamber 37 is disposed inside the housing 35. Several through holes 38 are provided on the two side walls of the drying chamber 37. Two dust covers 39 are symmetrically fixedly mounted on the outer side walls of the drying chamber 37. The lower end of a mounting shaft 40 is rotatably connected to the bottom of the drying chamber 37, and an annular guide groove 41 is fixedly mounted on the mounting shaft 40. A bevel gear 42 is fixedly mounted on the top of the mounting shaft 40, which rotatably passes through the top of the drying chamber 37 and the housing 35. A housing 43 is fixedly mounted on the top of the housing 35. A drive motor 44 is fixedly mounted inside the housing 43 on the top of the housing 35, and a bevel gear 45 is fixedly mounted on the output shaft of the drive motor 44, meshing with the bevel gear 42. The air inlet at the bottom of the housing 35 is connected to an air supply duct 46, and the air inlet of the air supply duct 46 is connected to a blower 47. A heater 48 is connected to the air supply duct 46.

[0049] The working principle and beneficial effects of the above technical solution are as follows: When coal from a thermal power plant needs to be processed, the crushing component in the fuel processing device operates via a servo motor 19 fixedly mounted on the top of the fixed plate 15. This motor drives a first pulley 20 fixedly mounted on the output shaft of the servo motor 19, which in turn drives the second pulleys 23 at both ends of the rotating shaft 21 and the turntable 24 to rotate synchronously. A lever 25 is installed on the turntable 24 away from the center, with one end of the lever 25 slidably connected to a groove 18. This allows the lever 25 and the groove 18 to move the second crushed block 14 left and right along the mounting plate 30. The second crushed block 14 moves relative to the first crushed block 13. In conjunction with several crushing rods 16 arranged on the adjacent sides of the second crushed block 14 and the first crushed block 13, the coal conveyed by the hopper 6 at the top of the processing box 2 is crushed. This crushing component can efficiently and stably crush the coal, ensuring that the coal quality meets the requirements for use.

[0050] After the coal is crushed by the crushing component 3 via the screening component 4, it is then screened by the first screen 26 and the second screen 27. The screened coal is then collected by the discharge chute 12 and discharged through its outlet. During screening, the movement of the second crushing block 14 causes the first screen 26 to vibrate up and down via the first connecting rod 31. The mounting base 28 is fixed to the inner wall of the processing box 2 by several springs 29, so that one end of the first screen 26 vibrates up and down synchronously along the mounting base 28, thereby improving the screening effect.

[0051] The coal slag screened by the first screen 26 is discharged through the first feed chute 7 and falls into the first collection chute 9. Simultaneously, the first screen 26 and the second screen 27 are hinged by the second connecting rod 32. As the first screen 26 vibrates up and down, the second screen 27 vibrates synchronously along the mounting plate 30, causing the fuel to be screened through the second screen 27 and fall into the discharge chute 12. The screened coal slag is discharged through the second feed chute 8 and falls into the second collection chute 10. The aforementioned screening assembly 4 achieves efficient screening of coal, thereby effectively improving the fineness of the coal and making coal combustion more efficient.

[0052] Through the drying mechanism 5, when the coal discharged from the outlet of the discharge trough 12 passes through the Roots blower 33 and the feeding pipe 34, the screened coal enters the drying box 37. At this time, the blower 47 continuously delivers the hot air heated by the heater 48 into the box 35, and the coal falls into the annular guide trough 41 through the feed inlet at the top of the box 35. The drive motor 44 drives the fixedly connected bevel gear 45 to rotate.

[0053] The meshing transmission between bevel gear 42 and bevel gear 45 causes the mounting shaft 40 to drive the fixedly connected annular guide trough 41 to rotate, thereby ensuring that the coal continuously flows downward on the annular guide trough 41. At this time, hot air enters the interior of the drying chamber 37 through the dust cover 39 and the through holes 38 on the side wall of the drying chamber 37, realizing all-round drying of the coal, greatly improving the drying efficiency of the coal, improving the quality of the coal, and ensuring the combustion efficiency of the coal. Secondly, the dust cover 39 can effectively prevent coal dust from entering the interior of the chamber 35, causing coal dust accumulation inside the air supply duct 46 and the heater 48.

[0054] The crushing component 3, screening component 4, and drying mechanism 5 of the aforementioned fuel processing device can crush, screen, and dry coal in thermal power plants, thereby improving the quality of coal, promoting stable combustion, increasing combustion efficiency, reducing losses from incomplete combustion, and ensuring a high combustion rate of coal in thermal power plants.

[0055] A specific example 2 provided in this disclosure includes: This disclosure provides an energy-saving system for a thermal power plant, the system comprising: Waste heat recovery devices, including heat pipe heat exchangers and heat pumps, are used to recover waste heat resources such as flue gas and wastewater emitted by thermal power plants.

[0056] The fuel processing device of Example 1 performs crushing, screening and drying of fuel according to actual needs to improve fuel quality.

[0057] The turbine flow passage device, based on new high-efficiency turbine blades and sealing technology, is used to modify the flow passage of a turbine and improve flow passage efficiency.

[0058] Variable frequency speed control devices are based on the installation of frequency converters on equipment such as fans and water pumps in thermal power plants, which are used to automatically adjust the speed of motors according to actual needs.

[0059] The working principle and beneficial effects of the above technical solution are as follows: This invention discloses an energy-saving system for thermal power plants, comprising a waste heat recovery device, a fuel processing device, a turbine flow path device, and a variable frequency drive (VFD) device. These components work together to provide a comprehensive energy-saving system that improves energy utilization efficiency and reduces energy consumption and waste, thereby effectively achieving energy conservation, emission reduction, and sustainable development in thermal power plants. The waste heat recovery device, including a heat pipe heat exchanger and a heat pump, recovers waste heat resources such as flue gas and wastewater emitted by the thermal power plant, thereby reducing energy consumption. The fuel processing device, based on improvements to the burner structure, employs pretreatment measures such as fuel screening, crushing, and mixing according to actual needs to improve fuel quality and utilizes an advanced combustion control system to achieve precise control of the combustion process. The turbine flow path device, based on new high-efficiency turbine blades and sealing technology, modifies the turbine flow path to improve flow efficiency, reduce energy loss, and lower energy consumption. The VFD device, by installing frequency converters on equipment such as fans and pumps in the thermal power plant, automatically adjusts the motor speed according to actual needs, effectively avoiding the "oversized motor for undersized load" phenomenon and reducing energy consumption.

[0060] The aforementioned energy-saving system for thermal power plants, through the installation of multiple devices, can effectively address key energy consumption indicators such as coal consumption, electricity consumption, and water consumption. This can help thermal power plants effectively reduce energy consumption, improve energy efficiency, reduce environmental pollution, and maintain strong competitiveness.

[0061] A specific embodiment 3 provided in this disclosure includes: An energy-saving system for a thermal power plant, based on Embodiment 1 or 2, further includes fuel performance testing equipment for testing the combustion performance of coal after processing by the fuel treatment device. The fuel performance testing equipment includes: A mass sensor is used to detect the mass of coal used in combustion performance tests after the coal has been processed by a fuel processing device.

[0062] A direct-reading dust concentration meter is used to detect the concentration of coal during combustion after it has been treated by a fuel processing device.

[0063] A timer is used to detect the time required for complete combustion of coal after it has been processed by a fuel processing device.

[0064] The controller and alarm are electrically connected to a mass sensor, a direct-reading dust concentration meter, a timer, and the alarm. The controller controls the alarm based on the mass sensor, the direct-reading dust concentration meter, and the timer.

[0065] Preferably, the controller controls the alarm operation based on a mass sensor, a direct-reading dust concentration meter, and a timer, including: Based on the formula and the detection values ​​obtained from the mass sensor, direct-reading dust concentration meter, and timer, the calorific value of the coal after processing by the fuel treatment device for coal combustion in the thermal power plant is calculated. The controller compares the calorific value of the coal after processing by the current fuel handling unit in the power plant. Compared to the preset range of calorific value for coal combustion, if the current fuel processing device processes the coal from the power plant, the calorific value of the coal combustion will be... When the calorific value of the coal is outside the preset range, the controller will activate the alarm. ; in, This refers to the calorific value of coal after it has been processed by a fuel processing unit and combusted in a thermal power plant. This is the mass flow rate ratio of the coal-fired flue gas return to the pulverized coal gas flow (obtained by referring to a table). This refers to the mass value detected by the mass sensor when testing the combustion performance of coal after it has been processed by a fuel handling device. The area of ​​coal combustion during combustion performance testing. This is a direct-reading dust concentration meter used to measure the concentration of coal during combustion after it has been treated by a fuel processing device. This is the kinetic constant for coal combustion (obtained by looking up a table). The diffusion coefficient of coal combustion is given. t represents the activation energy of the coal (obtained from a table based on the actual type of coal), and t is the timer value for the complete combustion of the coal after it has been processed by the fuel treatment device. It is the Nusselt number (usually taken as 2). is the air diffusion coefficient.

[0066] The beneficial effects of the above technical solution are as follows: First, based on the formula and the detection values ​​of the mass sensor, direct-reading dust concentration meter and timer, the calorific value of the coal after the fuel treatment device processes the coal in the thermal power plant is calculated. By comprehensively considering the mass flow ratio of the coal return flue gas and the pulverized coal airflow, the mass of the coal used for combustion performance testing after the coal is processed by the fuel treatment device, the combustion area of ​​the coal during combustion performance testing, the concentration of the coal during combustion after the coal is processed by the fuel treatment device, the kinetic constant of the coal, the diffusion coefficient of the coal, the activation energy of the coal, the time for complete combustion of the coal used for combustion after the coal is processed by the fuel treatment device, and the diffusion coefficient of the air, the calculation results are more accurate and reliable.

[0067] The controller controls the operation of the quality sensor, direct-reading dust concentration meter, timer, and alarm. This is used when the actual fuel processing unit processes the coal from the power plant to determine the calorific value of the coal. When the calorific value of the coal combustion is outside the preset range, the controller activates the alarm, prompting staff to promptly inspect the fuel processing unit. Based on the inspection results, maintenance is performed to ensure the unit meets operational requirements, guaranteeing the overall normal operation of the power plant's energy-saving system, reducing energy consumption, and effectively extending the lifespan of the fuel processing unit. This further meets the unit's requirements for operational reliability and stability. By monitoring the unit's operating status in real time, the efficiency of coal processing is increased, and faults are quickly detected and repaired promptly.

[0068] It is understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of this disclosure, and this disclosure is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and substance of this disclosure, and these modifications and improvements are also considered to be within the scope of protection of this disclosure.

Claims

1. A fuel processing device, characterized in that, include: Processing box, screening assembly, crushing assembly, and drying mechanism; The processing box has a feeding port and a discharging trough, and the discharging trough is correspondingly arranged with the screening component; The crushing component is disposed inside the processing box and is correspondingly disposed to the feeding port. The crushing component is used to crush the fuel fed into the processing box. The screening component is disposed inside the processing box and is disposed correspondingly to the crushing component. The screening component is used to screen the crushed fuel. The drying mechanism is connected to the discharge trough and is used to dry the fuel output from the discharge trough after screening.

2. The fuel processing apparatus according to claim 1, characterized in that, Also includes: A mounting frame and a feeding mechanism; the mounting frame is located at the bottom of the processing box and is used to support the processing box; the feeding mechanism is located between the discharge port of the discharge trough and the drying mechanism and is used to transport the fuel output from the discharge port to the drying mechanism.

3. A fuel processing apparatus according to claim 1 or 2, characterized in that, Also includes: A hopper is located on top of the processing box, and the hopper is positioned opposite the feeding port.

4. A fuel processing apparatus according to claim 1 or 2, characterized in that, Also includes: First feed trough, second feed trough, first collection trough and second collection trough; Both the first and second feed troughs correspond to the positions of the screening components and are located in the processing box; the first collection trough is correspondingly arranged to the first feed trough, and the first collection trough is used to collect the material discharged from the first feed trough; the second collection trough is correspondingly arranged to the second feed trough, and the second collection trough is used to collect the material discharged from the second feed trough.

5. A fuel processing apparatus according to claim 1 or 2, characterized in that, The crushing assembly includes a crushing unit, a driving unit, and a transmission unit; The crushing unit includes a first crushing block and a second crushing block arranged at relative intervals; the second crushing block is connected to the driving unit through the transmission unit, wherein the driving force of the driving unit is transmitted to the second crushing block through the transmission unit, causing the second crushing block to move relative to the first crushing block, so as to crush the fuel in the gap between the first crushing block and the second crushing block.

6. A fuel processing apparatus according to claim 5, characterized in that, The transmission unit includes a mounting rod, a first pulley, a rotating shaft, a second pulley, a turntable, and a belt; the second crushed block is provided with a sliding groove; The mounting rod is disposed on the processing box; the rotating shaft is disposed on the mounting rod; the turntable and the second pulley are both disposed on the rotating shaft; the first pulley is disposed on the output shaft of the drive unit; the belt is wound around the first pulley and the second pulley; The turntable is also equipped with a lever, which is slidably connected to the groove.

7. A fuel processing apparatus according to claim 5, characterized in that, The screening assembly includes a first screen, a second screen, a first connecting rod, and a second connecting rod; the processing box includes a first sidewall and a second sidewall opposite to each other, with the first screen and the second screen correspondingly arranged. The first end of the first screen is slidably connected to the first side wall, and the second end of the first screen is hinged to the second side wall; the first end of the second screen is hinged to the second side wall, and the second end of the second screen is slidably connected to the discharge chute. The first connecting rod is hinged between the second crushed block and the first screen, and the second connecting rod is hinged between the first screen and the second screen.

8. A fuel processing apparatus according to claim 7, characterized in that, The screening assembly further includes a first sliding structure and a second sliding structure; the first sliding structure includes a mounting base and an elastic element; the first end of the first screen has a first sliding connector, and the second end of the second screen has a second sliding connector. The mounting base is provided with a first annular groove, wherein the mounting base and the first screen are slidably connected by the adaptation of the first annular groove and the first sliding connector; the mounting base is connected to the first side wall by an elastic member. The second sliding structure includes a mounting plate with a second annular groove, wherein the mounting plate and the second screen are slidably connected by the adaptation of the second annular groove and the second sliding connector.

9. A fuel processing apparatus according to claim 7, characterized in that, Also includes: A guide plate is disposed between the first screen and the second screen, and the guide plate is used to guide the fuel screened by the first screen to the second screen.

10. A fuel processing apparatus according to claim 1 or 2, characterized in that, The drying mechanism includes a housing, a drying chamber, a mounting shaft, an annular material trough, and a drive structure; The drying chamber is disposed within the chamber body; the drive structure is disposed within the chamber body; the mounting shaft is rotatably disposed within the drying chamber, and one end of the mounting shaft is meshed with the output shaft of the drive structure; the annular feed chute is disposed on the mounting shaft; wherein, the drying chamber and the chamber body are provided with feed inlets at the feed inlet positions corresponding to the annular feed chute, so that the fuel output from the discharge chute enters the drying chamber.

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