Air hammer vibrating device for coal supply of thermal power boiler
By designing an air hammer vibration device, the problems of coal clogging and adhesion in the coal hopper of thermal power boilers were solved, enabling smooth coal feeding and convenient cleaning, and reducing the cleaning intensity for workers.
Patent Information
- Application Number
- CN202411646500.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-18
- Publication Date
- 2025-01-24
AI Technical Summary
In the coal feeding process of existing thermal power boilers, the coal hopper is prone to blockage due to the different sizes of coal blocks and the fact that the bottom port is smaller than the top port. Furthermore, after prolonged use, coal material adheres to and solidifies on the inner wall of the coal hopper, increasing the cleaning intensity.
A pneumatic hammer vibration device for coal supply in a thermal power boiler was designed, comprising a pneumatic hammer vibration mechanism, a buffer limiting component, and an anti-clogging cleaning mechanism. The device reduces frictional resistance and prevents blockage by vibrating and striking the inner wall of the coal hopper, and dries the inner wall by heating the plate to reduce adhesion. Combined with the rotating cleaning component, the device cleans impurities from the inner wall.
It effectively prevents coal hopper blockage, reduces cleaning difficulty, improves material feeding efficiency, reduces the labor intensity of workers, and ensures smooth coal feeding.
Smart Images
Figure CN119353693A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to an air hammer beating device, in particular to an air hammer beating device for supplying coal to a thermal power boiler. Background Art
[0002] Thermal power boilers are equipment that utilizes fuel combustion and converts the heat energy generated by combustion into water vapor. The water vapor is used to provide power to the steam turbine to generate electricity. Thermal power boilers are widely used in the power, steel, chemical, building materials and other industries, and are important equipment for industrial production and urban heating. In the power industry, thermal power boilers are one of the core equipment for thermal power generation; with the continuous advancement of technology and the increasing requirements for environmental protection, thermal power boilers will develop in a more efficient, environmentally friendly and intelligent direction.
[0003] When supplying coal in the existing coal hopper of a thermal power boiler, the coal blocks have different volumes, and the bottom port of the coal hopper is smaller than the top port. The excessively large volume can easily cause blockage at the bottom of the coal hopper, affecting the feeding situation. At the same time, after long-term use, a lot of coal adheres to the inner wall of the coal hopper and condenses over a long period of time, increasing the cleaning intensity of the workers. Summary of the invention
[0004] The present invention provides a pneumatic hammer beating device for coal supply in a thermal power boiler in order to solve the technical problems that, during the use of the existing coal hopper for thermal power boilers, the volumes of coal blocks are different, the bottom port of the coal hopper is smaller than the top port, and the excessively large volume easily causes blockage of the bottom end of the coal hopper, affecting the feeding; at the same time, after long-term use, a lot of coal adheres to the inner wall of the coal hopper and condenses for a long time, increasing the cleaning intensity of the workers.
[0005] The present invention solves the above technical problems through the following technical solutions:
[0006] The present invention provides a pneumatic hammer beating device for coal supply to a thermal power boiler, and the pneumatic hammer beating device for coal supply to a thermal power boiler comprises:
[0007] A coal hopper, wherein a mounting seat is fixedly sleeved on the bottom surface of the coal hopper;
[0008] An air hammer striking mechanism, which is fixedly mounted on the top surface of the coal hopper and is used for vibrating and striking the inner wall of the coal hopper;
[0009] A buffer limiter assembly, the buffer limiter assembly is mounted on the outer surface of the coal hopper and is used for buffering and guiding the air hammer striking mechanism;
[0010] The anti-blocking cleaning mechanism is installed in the coal hopper and is used for cleaning the inner wall of the coal hopper and for preventing and dredging the bottom of the coal hopper.
[0011] Furthermore, the coal hopper comprises an outer shell, a heating plate and a heat-conducting inner shell, the inner wall of the outer shell is fixedly mounted with the heating plate, and the inner wall of the heating plate is fixedly mounted with the heat-conducting inner shell.
[0012] Furthermore, the pneumatic hammer striking mechanism includes a mounting ring, a hydraulic cylinder, a movable ring, an pneumatic hammer body, a connecting seat and a ball. The mounting ring is fixedly sleeved on the outer surface of the top end of the outer shell, a hydraulic cylinder is fixedly mounted on the top side surface of the mounting ring, a movable ring is fixedly connected to the output end of the hydraulic cylinder, an pneumatic hammer body is mounted in the movable ring, the output end of the pneumatic hammer body is connected to a connecting seat, and a ball is rotatably connected in the connecting seat.
[0013] Furthermore, the movable ring is sleeved on the outer surface of the shell, and a plurality of air hammer bodies are evenly distributed in an annular shape in the movable ring.
[0014] Furthermore, the buffer limiting mechanism includes a fixing ring, a first spring, a first buffer plate, a second spring, a second buffer plate and a guide rod, the fixing ring is fixedly sleeved on the outer surface of the outer shell, the top side surface of the fixing ring is fixedly connected to the guide rod, the bottom end of the guide rod is sleeved with the first spring, the top end of the first spring is fixedly connected to the first buffer plate, the top end of the guide rod is sleeved with the second spring, and the bottom end of the second spring is fixedly connected to the second buffer plate.
[0015] Furthermore, the number of the guide rods is two, the top side of the fixed ring is fixedly connected to the bottom side of the mounting ring via the guide rods, and the guide rods slide through the outer surface of the movable ring.
[0016] Furthermore, the bottom end of the first spring is fixedly connected to the bottom side of the fixing ring, the top side of the fixing ring is elastically connected to the first buffer plate through the first spring, and the first buffer plate is slidably sleeved on the bottom end surface of the guide rod.
[0017] Furthermore, the top end of the second spring is fixedly connected to the bottom side of the mounting ring, the bottom side of the mounting ring is elastically connected to the second buffer plate via the second spring, and the second buffer plate is slidably sleeved on the top end surface of the guide rod.
[0018] Furthermore, the anti-blocking cleaning mechanism includes a fixed seat, a fixed plate, a fixed column, a fixed block, a fixed shell and a rotating cleaning assembly. The fixed seat is fixedly installed on the top side surface of the outer shell by fixing bolts arranged on the surface, the side surface of the fixed seat is fixedly connected with a fixed plate, the end of the fixed plate is fixedly connected with a fixed column, the bottom end of the fixed column is fixedly connected with a fixed block, the surface of the fixed block is fixedly connected to the fixed shell on the bottom side by arranged bolts, and a rotating cleaning assembly is installed in the fixed shell.
[0019] Furthermore, the rotating cleaning assembly includes a rotating motor, a connecting column, a rotating plate, a scraper and a crushing knife. The rotating motor is fixedly installed in the inner cavity of the fixed shell, the end of the output shaft of the rotating motor is fixedly connected to the rotating plate, the side surface of the rotating plate is fixedly connected to the connecting column, the end of the connecting column is fixedly connected to the scraper on the inner wall of the heat-conducting inner shell, and a plurality of crushing knives are equidistantly installed on the side surface of the bottom end of the scraper.
[0020] On the basis of being in accordance with the common sense in the art, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiments of the present invention.
[0021] The positive and progressive effects of the present invention are:
[0022] The above-mentioned pneumatic hammer beating device for supplying coal to a thermal power boiler. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application.
[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of the air hammer striking device of the present invention.
[0025] Figure 2 It is a bottom-up stereoscopic structural schematic diagram of the air hammer striking device of the present invention.
[0026] Figure 3 It is a schematic diagram of the overall top view of the air hammer striking device of the present invention.
[0027] Figure 4 It is a front cross-sectional structural schematic diagram of the air hammer striking device of the present invention.
[0028] Figure 5 It is a schematic diagram of the front view of the pneumatic hammer striking device of the present invention.
[0029] Figure 6 It is a schematic diagram of the left side structure of the air hammer striking device of the present invention.
[0030] Description of Reference Numerals
[0031] 1. Coal hopper; 11. Outer shell; 12. Heating plate; 13. Heat-conducting inner shell; 2. Mounting seat; 3. Air hammer striking mechanism; 31. Mounting ring; 32. Hydraulic cylinder; 33. Moving ring; 34. Air hammer body; 35. Connecting seat; 36. Ball; 4. Buffer limit assembly; 41. Fixed ring; 42. First spring; 43. First buffer plate; 44. Second spring; 45. Second buffer plate; 46. Guide rod; 5. Anti-blocking cleaning mechanism; 51. Fixed seat; 52. Fixed bolt; 53. Fixed plate; 54. Fixed column; 55. Fixed block; 56. Fixed shell; 57. Rotating motor; 58. Connecting column; 59. Rotating plate; 510. Scraper; 511. Crushing knife. DETAILED DESCRIPTION
[0032] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.
[0033] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.
[0034] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.
[0035] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.
[0036] In addition, the terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0037] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other.
[0038] like Figure 1-6 As shown, the pneumatic hammer striking device for coal supply to thermal power boiler comprises:
[0039] A coal hopper, wherein a mounting seat is fixedly sleeved on the bottom surface of the coal hopper;
[0040] An air hammer striking mechanism, which is fixedly mounted on the top surface of the coal hopper and is used for vibrating and striking the inner wall of the coal hopper;
[0041] A buffer limiter assembly, the buffer limiter assembly is mounted on the outer surface of the coal hopper and is used for buffering and guiding the air hammer striking mechanism;
[0042] The anti-blocking cleaning mechanism is installed in the coal hopper and is used for cleaning the inner wall of the coal hopper and for preventing and dredging the bottom of the coal hopper.
[0043] The coal hopper is used for putting in fuel coal. During the supply of fuel coal, the air hammer striking mechanism is started to vibrate the coal hopper, which is convenient for vibrating the coal fuel to be discharged, reduces the adhesion and cleaning of the inner wall of the coal hopper, and improves the supply effect of the coal fuel. The vibration and impact force act on the coal material and the silo wall, which can reduce the friction coefficient between the coal and the silo wall and reduce the friction resistance. At the same time, it can loosen the coal material and destroy the cohesion of the coal material, so as to achieve the purpose of clearing the blockage. Under the guidance of the buffer limit mechanism, the air hammer striking mechanism can effectively move and vibrate to achieve comprehensive knocking on the coal hopper, and limit and buffer through the buffer mechanism to ensure the stable use of the air hammer striking mechanism. At the same time, under the action of the anti-blocking cleaning mechanism, it is convenient to crush the fuel coal on the inner wall of the coal hopper and assist in cleaning the inner wall of the bottom of the coal hopper, so as to achieve the dredging effect at the bottom of the coal hopper and avoid blockage.
[0044] The coal hopper comprises an outer shell, a heating plate and a heat-conducting inner shell. The inner wall of the outer shell is fixedly mounted with the heating plate, and the inner wall of the heating plate is fixedly mounted with the heat-conducting inner shell.
[0045] The heating plate is provided to heat the inside of the coal hopper, thereby drying the coal fuel, reducing the adhesion strength of the inner wall of the coal hopper, and facilitating material dropping.
[0046] The air hammer striking mechanism includes a mounting ring, a hydraulic cylinder, a moving ring, an air hammer body, a connecting seat and a ball. The mounting ring is fixedly sleeved on the outer surface of the top end of the shell, a hydraulic cylinder is fixedly mounted on the top side surface of the mounting ring, a moving ring is fixedly connected to the output end of the hydraulic cylinder, an air hammer body is mounted in the moving ring, an output end of the air hammer body is connected to a connecting seat, and a ball is rotatably connected in the connecting seat.
[0047] The moving ring is sleeved on the outer surface of the shell, and a plurality of air hammer bodies are evenly distributed in an annular shape in the moving ring.
[0048] Start the hydraulic cylinder, which pushes the fixedly connected moving ring to move, and the moving ring drives the air hammer body to move, so that the air hammer body drives the connecting seat to move and strike, and the connecting seat rolls and fits with the surface of the shell through the ball bearing, which reduces friction and improves the striking vibration effect.
[0049] The buffer limiting mechanism includes a fixing ring, a first spring, a first buffer plate, a second spring, a second buffer plate and a guide rod. The fixing ring is fixedly sleeved on the outer surface of the outer shell, the top surface of the fixing ring is fixedly connected with the guide rod, the bottom end of the guide rod is sleeved with the first spring, the top end of the first spring is fixedly connected with the first buffer plate, the top end of the guide rod is sleeved with the second spring, and the bottom end of the second spring is fixedly connected with the second buffer plate.
[0050] There are two guide rods, the top side of the fixed ring is fixedly connected to the bottom side of the mounting ring through the guide rods, and the guide rods slide through the outer surface of the movable ring.
[0051] The movable ring slides along the surface of the guide rod, and the movable ring moves downward and is buffered by the first buffer plate and the first spring to improve the buffering effect, and the movable ring moves upward and is buffered by the second buffer plate and the second spring to improve the limiting condition of the movable ring and facilitate vibration and knocking.
[0052] The bottom end of the first spring is fixedly connected to the bottom side of the fixing ring, the top side of the fixing ring is elastically connected to the first buffer plate through the first spring, and the first buffer plate is slidably sleeved on the bottom end surface of the guide rod.
[0053] The top end of the second spring is fixedly connected to the bottom side of the mounting ring, the bottom side of the mounting ring is elastically connected to the second buffer plate through the second spring, and the second buffer plate is slidably sleeved on the top end surface of the guide rod.
[0054] The anti-blocking cleaning mechanism includes a fixed seat, a fixed plate, a fixed column, a fixed block, a fixed shell and a rotating cleaning assembly. The fixed seat is fixedly installed on the top side surface of the shell by fixing bolts arranged on the surface, the side surface of the fixed seat is fixedly connected with a fixed plate, the end of the fixed plate is fixedly connected with a fixed column, the bottom end of the fixed column is fixedly connected with a fixed block, the surface of the fixed block is fixedly connected to the fixed shell on the bottom side by arranged bolts, and a rotating cleaning assembly is installed in the fixed shell.
[0055] The rotating cleaning assembly includes a rotating motor, a connecting column, a rotating plate, a scraper and a crushing knife. The rotating motor is fixedly installed in the inner cavity of the fixed shell. The end of the output shaft of the rotating motor is fixedly connected to the rotating plate. The side surface of the rotating plate is fixedly connected to the connecting column. The end of the connecting column is fixedly connected to the scraper on the inner wall of the heat-conducting inner shell. A plurality of crushing knives are equidistantly installed on the side surface of the bottom end of the scraper.
[0056] The fixing seat is fixedly connected to the top side of the shell by fixing bolts, and the rotating motor is started to drive the rotating plate to rotate. The rotating plate drives the connecting column fixedly connected to the side surface to rotate, and the connecting column drives the scraper to clean the inner wall of the bottom end of the coal hopper, thereby reducing the adhesion of impurities on the inner wall of the bottom end of the coal hopper and improving the material discharge at the bottom end of the coal hopper. The crushing knife is driven to rotate by the scraper to facilitate the crushing of large pieces of coal fuel, avoid the situation where the coal fuel blocks the bottom end of the coal hopper, and facilitate material discharge.
[0057] The circuits, electronic components and modules involved are all prior art and can be fully implemented by those skilled in the art. Needless to say, the content protected by this application does not involve improvements to software and methods.
[0058] The present invention is not limited to the above-mentioned embodiments. Any changes in shape or structure are within the protection scope of the present invention. The protection scope of the present invention is defined by the attached claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principle and essence of the present invention, but these changes and modifications are within the protection scope of the present invention.
Claims
1. A pneumatic hammer pounding device for coal supply of thermal power boiler, characterized in that: The pneumatic hammer striking device for coal supply to thermal power boiler comprises: A coal hopper (1), wherein a mounting seat (2) is fixedly sleeved on the bottom surface of the coal hopper (1); An air hammer striking mechanism (3), the air hammer striking mechanism (3) being fixedly mounted on the top surface of the coal hopper (1), and the air hammer striking mechanism (3) being used for vibrating and striking the inner wall of the coal hopper (1); A buffering and limiting assembly (4), the buffering and limiting assembly (4) being mounted on the outer surface of the coal hopper (1), the buffering and limiting assembly (4) being used for buffering and guiding the air hammer striking mechanism (3); An anti-blocking cleaning mechanism (5) is installed in the coal hopper (1), and is used for cleaning the inner wall of the coal hopper (1) and for preventing and clearing the bottom of the coal hopper (1).
2. The pneumatic hammer pounding device for coal supply of thermal power boiler according to claim 1, characterized in that: The coal hopper (1) comprises an outer shell (11), a heating plate (12) and a heat-conducting inner shell (13); the heating plate (12) is fixedly mounted on the inner wall of the outer shell (11), and the heat-conducting inner shell (13) is fixedly mounted on the inner wall of the heating plate (12).
3. The pneumatic hammer pounding device for coal supply of thermal power boiler according to claim 1, characterized in that: The air hammer striking mechanism (3) comprises a mounting ring (31), a hydraulic cylinder (32), a moving ring (33), an air hammer body (34), a connecting seat (35) and a ball (36); the mounting ring (31) is fixedly sleeved on the outer surface of the top end of the housing (11); the hydraulic cylinder (32) is fixedly mounted on the top surface of the mounting ring (31); the moving ring (33) is fixedly connected to the output end of the hydraulic cylinder (32); the air hammer body (34) is mounted inside the moving ring (33); the output end of the air hammer body (34) is connected to the connecting seat (35); and the ball (36) is rotatably connected inside the connecting seat (35).
4. The pneumatic hammer pounding device for coal supply of thermal power boiler according to claim 3, characterized in that: The moving ring (33) is sleeved on the outer surface of the outer shell (11), and a plurality of air hammer bodies (34) are evenly distributed in an annular shape inside the moving ring (33).
5. The pneumatic hammer pounding device for coal supply of thermal power boiler according to claim 1, characterized in that: The buffer limiting mechanism comprises a fixing ring (41), a first spring (42), a first buffer plate (43), a second spring (44), a second buffer plate (45) and a guide rod (46); the fixing ring (41) is fixedly sleeved on the outer surface of the housing (11); the top surface of the fixing ring (41) is fixedly connected with the guide rod (46); the bottom end of the guide rod (46) is sleeved with the first spring (42); the top end of the first spring (42) is fixedly connected with the first buffer plate (43); the top end of the guide rod (46) is sleeved with the second spring (44); the bottom end of the second spring (44) is fixedly connected with the second buffer plate (45).
6. The pneumatic hammer pounding device for coal supply of thermal power boiler according to claim 5, characterized in that: There are two guide rods (46), the top side of the fixed ring (41) is fixedly connected to the bottom side of the mounting ring (31) via the guide rods (46), and the guide rods (46) slide through the outer surface of the movable ring (33).
7. The pneumatic hammer pounding device for coal supply of thermal power boiler according to claim 5, characterized in that: The bottom end of the first spring (42) is fixedly connected to the bottom side of the fixing ring (41), and the top side of the fixing ring (41) is elastically connected to the first buffer plate (43) through the first spring (42), and the first buffer plate (43) is slidably sleeved on the bottom end surface of the guide rod (46).
8. The pneumatic hammer pounding device for coal supply of thermal power boiler according to claim 5, characterized in that: The top end of the second spring (44) is fixedly connected to the bottom side of the mounting ring (31), and the bottom side of the mounting ring (31) is elastically connected to the second buffer plate (45) via the second spring (44), and the second buffer plate (45) is slidably sleeved on the top end surface of the guide rod (46).
9. The pneumatic hammer pounding device for coal supply of thermal power boiler according to claim 1, characterized in that: The anti-blocking cleaning mechanism (5) comprises a fixed seat (51), a fixed plate (53), a fixed column (54), a fixed block (55), a fixed shell (56) and a rotating cleaning assembly. The fixed seat (51) is fixedly mounted on the top side surface of the housing (11) by means of fixed bolts (52) arranged on the surface. The fixed plate (53) is fixedly connected to the side surface of the fixed seat (51). The fixed column (54) is fixedly connected to the end of the fixed plate (53). The fixed block (55) is fixedly connected to the bottom end of the fixed column (54). The surface of the fixed block (55) is fixedly connected to the fixed shell (56) at the bottom side by means of bolts. The rotating cleaning assembly is installed in the fixed shell (56).
10. The pneumatic hammer pounding device for coal supply of thermal power boiler according to claim 9, characterized in that: The rotating cleaning assembly comprises a rotating motor (57), a connecting column (58), a rotating plate (59), a scraper (510) and a crushing knife (511); the rotating motor (57) is fixedly mounted in the inner cavity of the fixed shell (56); the end of the output shaft of the rotating motor (57) is fixedly connected to the rotating plate (59); the side surface of the rotating plate (59) is fixedly connected to the connecting column (58); the end of the connecting column (58) is fixedly connected to the scraper (510) which is connected to the inner wall of the heat-conducting inner shell (13); and a plurality of crushing knives (511) are equidistantly mounted on the side surface of the bottom end of the scraper (510).