Raw coal bunker for starting and stopping
By designing the load-bearing components, moving components, and self-locking components for the raw coal bunker used for start-up and shutdown, the problem of blockage in the raw coal bunker was solved, the discharge channel was cleared, and the equipment was operated stably, reducing manual maintenance costs.
Patent Information
- Application Number
- CN202511136104.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-14
- Publication Date
- 2025-11-21
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Material blockages can easily occur in raw coal bunkers during storage and discharge, leading to unstable equipment operation and potentially causing boiler fires and unplanned unit shutdowns.
A raw coal bunker for start-up and shutdown was designed, including a bearing component, a moving component, and a self-locking component. The moving plate rotates inside the bearing tube to agitate the coal blocks. Combined with the dispersing component and the reset component, it can achieve adaptive handling of unblocking and clogging of the discharge channel.
This effectively avoids the initial accumulation of coal at the discharge port, improves the smoothness of discharge, reduces manual maintenance costs, and ensures stable operation of the equipment during start-up and shutdown.
Smart Images
Figure CN120986853A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of raw coal bunker cleaning, in particular to a raw coal bunker for start-stop machine. BACKGROUND
[0002] The raw coal bunker refers to a raw coal, coal slurry and other granular material storage bunker (also called raw coal bunker) in a thermal power plant. It is very popular to use, however, during the discharging process of the storage bunker, the material blocking phenomenon often occurs, which seriously affects the normal operation of the equipment. Especially in large-scale thermal power plants equipped with direct-fired pulverizing system, once the raw coal bunker is blocked during coal discharging, the unit has to be forced to reduce power and shed load, or the boiler combustion becomes unstable and causes a large amount of oil injection, and in severe cases, the boiler is extinguished and the unit is non-planned shutdown.
[0003] During the falling process of the coal blocks, when the material is stored to a certain amount in the bunker, due to the effects of the bunker pressure, the adhesion between the raw coal, and the balance of the accumulation, the lower part of the raw coal bunker is prone to hardening and arching, which causes poor coal feeding, and in severe cases, it will lead to coal breakage, causing the system to shut down, and the pulverizing system cannot work normally. SUMMARY
[0004] The purpose of the present application is to provide a raw coal bunker for start-stop machine, which aims to solve
[0005] The above technical problems are solved by the following technical scheme: the present application proposes the following technical scheme: a raw coal bunker for start-stop machine, which comprises a bearing assembly, the bearing assembly comprises a raw coal bunker, a discharge pipe arranged below the raw coal bunker, and a bearing pipe arranged inside the discharge pipe; and
[0006] a movable assembly, comprising a movable disc arranged inside the bearing pipe and a movable rod arranged inside the movable disc; and
[0007] a self-locking assembly, comprising a fixed cylinder arranged inside the bearing pipe and a sliding cover arranged outside the fixed cylinder.
[0008] As a preferred embodiment of the raw coal bunker for start-stop machine of the present application: the movable assembly further comprises a connecting shaft arranged inside the movable rod, the movable rods are arranged in a circular array outside the connecting shaft, the inside of the movable disc is provided with a first sliding groove, and the lower side of the first sliding groove is provided with a second sliding groove.
[0009] As a preferred embodiment of the raw coal bunker for start-stop machine of the present application: one end of the movable rod is provided with a connecting column, a limiting disc is arranged between the connecting columns, and an operating rod is sleeved outside the limiting disc.
[0010] As a preferred embodiment of the original coal bunker for the start-stop machine: the inner side of the bearing pipe is provided with a bearing column, one end of the bearing column is provided with a movable shaft, and the operating rod is sleeved outside the movable shaft.
[0011] As a preferred embodiment of the original coal bunker for the start-stop machine: the self-locking assembly further comprises a connecting convex pipe arranged outside the fixed cylinder, a self-locking rod arranged inside the connecting convex pipe, a curved block arranged at one end of the self-locking rod, a third elastic member arranged inside the fixed cylinder, a telescopic rod arranged inside the third elastic member, a first connecting rod arranged at one end of the telescopic rod, a hook-shaped groove arranged outside the first connecting rod, the curved block connected with the hook-shaped groove, a second connecting rod arranged at one end of the first connecting rod, a rotating plate arranged at one end of the second connecting rod, and a limiting rod arranged at one end of the rotating plate.
[0012] As a preferred embodiment of the original coal bunker for the start-stop machine: the original coal bunker further comprises a scattering assembly, the scattering assembly comprises a connecting block arranged inside the bearing pipe, an output rod arranged inside the connecting block, a coil spring arranged outside the output rod, and a scattering blade arranged outside the connecting block.
[0013] As a preferred embodiment of the original coal bunker for the start-stop machine: the inside of the output rod is provided with a limiting groove, and the limiting rod is arranged in the limiting groove.
[0014] As a preferred embodiment of the original coal bunker for the start-stop machine: the original coal bunker further comprises a resetting assembly, the resetting assembly comprises an inclined arc block arranged inside the bearing pipe, a first arc-shaped plate arranged inside the inclined arc block, a fixed arc block arranged inside the bearing pipe, and a rotating arc-shaped plate arranged inside the fixed arc block.
[0015] As a preferred embodiment of the original coal bunker for the start-stop machine: the inside of the fixed arc block is provided with a second arc-shaped plate, and the fourth elastic member is arranged between the first arc-shaped plate and the second arc-shaped plate.
[0016] As a preferred embodiment of the original coal bunker for the start-stop machine: the rotating arc-shaped plate and the output rod are provided with a resetting rod, and the outer side of the movable disc is provided with an inclined block.
[0017] The original coal bunker for the start-stop machine has the advantages that: through the cooperation of the bearing assembly, the movable assembly and the self-locking assembly, the coal blocks are stirred by the rotation of the movable disc inside the bearing pipe, which can effectively avoid the initial accumulation of the coal blocks at the discharge port and realize the dredging of the discharge channel. BRIEF DESCRIPTION OF DRAWINGS
[0018] In order to make the technical solution of the embodiments of the present application clearer, the drawings of the embodiments of the present application will be briefly introduced below. Obviously, the drawings described in the following description only relate to some embodiments of the present application and are not a limitation on the present application.
[0019] Figure 1 The overall assembly diagram of the present application.
[0020] Figure 2 The local assembly diagram of the present application.
[0021] Figure 3 The local structure cross-sectional view of the present application.
[0022] Figure 4 The movable assembly diagram of the present application.
[0023] Figure 5 The self-locking assembly diagram of the present application.
[0024] Figure 6 The scattering assembly diagram of the present application.
[0025] Figure 7 The reset assembly diagram of the present application. DETAILED DESCRIPTION
[0026] In order for those skilled in the art to better understand the present application, the present application will be further described in detail below in conjunction with the specific embodiments and drawings.
[0027] The terms used in the present application are those general terms currently widely used in the art in consideration of the functions about the present application, but these terms can be changed according to the intention of those skilled in the art, precedents, or new technologies in the art. In addition, specific terms can be selected by the applicant, and in this case, the detailed meaning thereof will be described in the detailed description of the present application. Therefore, the terms used in the specification should not be understood as simple names, but based on the meaning of the terms and the overall description of the present application.
[0028] Referring to Figure 1 , the present embodiment provides a raw coal bin for start-stop machine, which comprises a bearing assembly 1, the bearing assembly 1 comprises a raw coal bin 11, a discharge pipe 12 arranged below the raw coal bin 11, and a bearing pipe 121 arranged inside the discharge pipe 12; and
[0029] A movable assembly 2, which comprises a movable disc 21 arranged inside the bearing pipe 121 and a movable rod 22 arranged inside the movable disc 21; and
[0030] A self-locking assembly 3, which comprises a fixed cylinder 31 arranged inside the bearing pipe 121 and a sliding cover 32 arranged outside the fixed cylinder 31.
[0031] Specifically, by the cooperation of the bearing assembly 1, the movable assembly 2 and the self-locking assembly 3, the rotation of the movable disc 21 inside the bearing pipe 121 stirs the coal blocks, which can effectively avoid the initial accumulation of the coal blocks at the discharge port, dredge the discharge channel, thereby providing a basic guarantee for the stable discharge of the raw coal bin, reducing the problem of slight blockage caused by the accumulation of a small amount of coal blocks, and improving the basic discharge smoothness of the raw coal bin.
[0032] Use process: the coal blocks enter through the feed port above the raw coal bin 11, and when a large amount of coal blocks enter the raw coal bin 11, the coal blocks will accumulate, at this time, the movable disc 21 is rotated inside the movable disc 21, and the coal blocks are stirred by the movable disc 21, thereby dredging the discharge port.
[0033] Embodiment 2, refer to Figures 1-7 , the second embodiment of the present application, which is different from the previous embodiment, further comprises a connecting shaft 23 arranged inside the movable rod 22, the movable rod 22 is arranged on the outer side of the connecting shaft 23, the inner side of the movable disc 21 is provided with a first sliding groove 26, and the lower side of the first sliding groove 26 is provided with a second sliding groove 27. One end of the movable rod 22 is provided with a connecting column 221, and the connecting column 221 is provided with a limiting disc 2211. The outer side of the limiting disc 2211 is sleeved with an operating rod 24. Through the movable rod 22, the connecting shaft 23 and the operating rod 24, the problem of hardening and sticking of coal blocks is solved. When the coal blocks accumulate and stick to the movable disc 21 to form blockage, the movable disc 21 is triggered to move down by the gravity of the coal blocks, the movable rod 22 and the limiting disc 2211 are driven to move down by the movable disc 21, the operating rod 24 is inclined, the movable rod 22 rotates around the connecting shaft 23 to make the movable disc 21 inclined and slide in the first sliding groove 26, and finally the top of the movable rod 22 is used to stir and scatter the hardened coal blocks.
[0034] The inner side of the bearing pipe 121 is provided with a bearing column 25, one end of the bearing column 25 is provided with a movable shaft 251, and the operating rod 24 is sleeved on the outer side of the movable shaft 251. The trigger is realized by relying on the gravity of the coal blocks, the self-adaptive effect of dredging as soon as possible is realized, the processing capacity of the hardened blockage is significantly improved, the problem of aggravated blockage caused by untimely manual intervention is avoided, and the manual maintenance cost during start and stop is reduced.
[0035] Use process: when the coal blocks are accumulated and cause the adhesion and sticking, the accumulated and adhered coal blocks are accumulated to the movable disc 21, and the movable disc 21 cannot be discharged, at this time, the movable disc 21 is slid downwardly by the gravity generated after the coal blocks are accumulated, when the movable disc 21 is moved downwardly, the movable disc 21 drives the inner movable rod 22 and the limiting disc 2211 at one end of the movable rod 22 to move downwardly, after the limiting disc 2211 is moved downwardly, the operating rod 24 between the limiting disc 2211 and the movable shaft 251 is subjected to the extrusion force, after the operating rod 24 is subjected to the extrusion, at this time, the top end of the operating rod 24 is inclined to one end, thereby giving the space for the movable rod 22 to continue to descend, after the movable rod 22 is inclined, the movable rod 22 drives the limiting disc 2211 to slide in the first sliding groove 26, at this time, the limiting disc 2211 drives the connecting column 221 to slide to one end, the connecting column 221 drives the movable rod 22 to rotate around the connecting shaft 23, after the movable rod 22 is rotated, the coal blocks are stirred by the sharp end at the top of the movable rod 22, so that the coal blocks are smoothly fallen.
[0036] Embodiment 3, refer to Figures 1-7 , the third embodiment of the present application, which is different from the previous embodiment, further comprises a self-locking assembly 3 further comprising a connecting convex tube 311 arranged on the outside of the fixed cylinder 31, the inner side of the movable disc 21 is provided with a bevel groove 321, the inside of the connecting convex tube 311 is provided with a self-locking rod 312, one end of the self-locking rod 312 is provided with a curved block 313, the inside of the fixed cylinder 31 is provided with a third elastic member 33, the inside of the third elastic member 33 is provided with a telescopic rod 34, one end of the telescopic rod 34 is provided with a first connecting rod 35, the outer side of the first connecting rod 35 is provided with a hook-shaped groove 351, the curved block 313 is connected with the hook-shaped groove 351, one end of the first connecting rod 35 is provided with a second connecting rod 36, one end of the second connecting rod 36 is provided with a rotating plate 37, one end of the rotating plate 37 is provided with a limiting rod 38, when the movable disc 21 is moved downwardly, the sliding cover 32 is extruded, the self-locking assembly 3 is driven by the telescopic rod 34, the first connecting rod 35 and the like to release the limiting of the output rod 42, the output rod 42 in the coil spring 421 drives the scattering blades 43 to swing, the accumulated and caked coal blocks in the bearing pipe 121 are hit by the plurality of scattering blades 43, the coal blocks are completely scattered, the problem of hard caking which is difficult to handle by simply stirring and pushing is solved, and the dredging efficiency is greatly improved.
[0037] Further comprising a scattering assembly 4, the scattering assembly 4 comprises a connecting block 41 arranged in the inside of the bearing pipe 121, the inside of the connecting block 41 is provided with an output rod 42, the outer side of the output rod 42 is provided with a coil spring 421, the outer side of the connecting block 41 is provided with scattering blades 43.
[0038] The inside of the output rod 42 is provided with a limiting groove 381, and the limiting rod 38 is arranged in the limiting groove 381.
[0039] The reset assembly 5 comprises a bevel arc block 51 arranged in the bearing tube 121, the inside of the bevel arc block 51 is provided with a first arc-shaped plate 511, the inside of the bearing tube 121 is provided with a fixed arc block 52, the inside of the fixed arc block 52 is provided with a rotating arc-shaped plate 521. The inside of the fixed arc block 52 is provided with a second arc-shaped plate 5211, and the fourth elastic member 5212 is arranged between the first arc-shaped plate 511 and the second arc-shaped plate 5211. The rotating arc-shaped plate 521 and the output rod 42 are provided with a reset rod 53, and the outer side of the movable disc 21 is provided with a bevel block 54. When the movable disc 21 rises, the bevel block 54 and the bevel arc block 51 are extruded and transmitted, the rotating arc-shaped plate 521 and the reset rod 53 are rotated, the output rod 42 and the dispersing blade 43 are reset, and the coil spring 421 is re-energized, so as to prepare for the next beating action when the blockage occurs. The reset process does not require manual operation, realizes the circulation of blockage dredging, and ensures that the equipment can work stably under the frequent working conditions of start and stop.
[0040] Specifically, when the movable disc 21 rises, the bevel block 54 on both sides of the movable disc 21 is extruded with the bevel of the bevel arc block 51, so that the bevel arc block 51 moves to the direction of the fixed arc block 52, and extrudes the rotating arc-shaped plate 521 in the fixed arc block 52, so that the rotating arc-shaped plate 521 rotates. During the rotation of the rotating arc-shaped plate 521, the reset rod 53 is rotated, the reset rod 53 drives the output rod 42 to rotate, and the output rod 42 drives the connecting block 41 and the dispersing blade 43 to reset.
[0041] The use process is as follows: when the movable disc 21 moves downward, the movable disc 21 extrudes the sliding cover 32, so that the sliding cover 32 moves inward, and then the sliding cover 32 drives the telescopic rod 34, the first connecting rod 35, the second connecting rod 36 and the limiting rod 38 to move inward. During the movement of the first connecting rod 35, the curved block 313 drives the first connecting rod 35 to rotate one circle through the hook-shaped groove 351, the hook-shaped groove 351 drives the second connecting rod 36, the rotating plate 37 and the limiting rod 38 to rotate one circle, at this time, the limiting rod 38 is removed from the limiting groove 381, so that the limiting on the output rod 42 is released, and then the coil spring 421 in the output rod 42 drives the dispersing blade 43 to swing, so that the plurality of dispersing blades 43 in the bearing tube 121 swing, so as to realize the beating of the accumulated and hardened coal blocks, so that the coal blocks can be smoothly discharged.
[0042] Finally, it should be pointed out that the above detailed description of the method and device is only an embodiment, and those skilled in the art can modify the embodiment in different ways without departing from the scope of the present application.
Claims
1. A raw coal silo for starting and stopping a generator, characterized in that: include, A support assembly (1), comprising a raw coal bunker (11), a discharge pipe (12) disposed below the raw coal bunker (11), and a support pipe (121) disposed inside the discharge pipe (12); and, The movable component (2) includes a movable disc (21) disposed inside the bearing tube (121) and a movable rod (22) disposed inside the movable disc (21); and, The self-locking assembly (3) includes a fixed cylinder (31) located inside the bearing tube (121) and a sliding cover (32) located outside the fixed cylinder (31).
2. The raw coal bunker for start-up and shutdown as described in claim 1, characterized in that: The movable component (2) also includes a connecting shaft (23) disposed inside the movable rod (22), the movable rod (22) is arranged in a circumferential array outside the connecting shaft (23), the movable disk (21) is provided with a first sliding groove (26) on the inner side, and a second sliding groove (27) is provided below the first sliding groove (26).
3. The raw coal bunker for start-up and shutdown as described in claim 2, characterized in that: One end of the movable rod (22) is provided with a connecting post (221), and a limiting plate (2211) is provided between the connecting posts (221). An operating rod (24) is sleeved on the outside of the limiting plate (2211).
4. The raw coal bunker for start-up and shutdown as described in claim 3, characterized in that: The inner side of the bearing tube (121) is provided with a bearing column (25), one end of the bearing column (25) is provided with a movable shaft (251), and the operating rod (24) is sleeved on the outside of the movable shaft (251).
5. The raw coal bunker for start-up and shutdown as described in claim 4, characterized in that: The self-locking assembly (3) further includes a connecting protrusion (311) located on the outside of the fixed cylinder (31). The inner side of the movable disc (21) is provided with a sloping groove (321). The connecting protrusion (311) is provided with a self-locking rod (312). One end of the self-locking rod (312) is provided with a curved block (313). The fixed cylinder (31) is provided with a third elastic element (33). The third elastic element (33) is provided with a telescopic rod (34). One end of the telescopic rod (34) is provided with a first connecting rod (35). The outer side of the first connecting rod (35) is provided with a hook-shaped groove (351). The curved block (313) is connected to the hook-shaped groove (351). One end of the first connecting rod (35) is provided with a second connecting rod (36). One end of the second connecting rod (36) is provided with a rotating plate (37). One end of the rotating plate (37) is provided with a limiting rod (38).
6. The raw coal bunker for start-up and shutdown as described in claim 5, characterized in that: It also includes a dispersing component (4), which includes a connecting block (41) disposed inside the bearing tube (121), an output rod (42) disposed inside the connecting block (41), a coil spring (421) disposed on the outside of the output rod (42), and a dispersing blade (43) disposed on the outside of the connecting block (41).
7. The raw coal bunker for start-up and shutdown as described in claim 6, characterized in that: The output rod (42) has a limiting groove (381) inside, and the limiting rod (38) is set in the limiting groove (381).
8. The raw coal bunker for start-up and shutdown as described in claim 7, characterized in that: It also includes a reset component (5), which includes an inclined arc block (51) disposed inside the bearing tube (121), the inclined arc block (51) having a first arc plate (511) inside, the bearing tube (121) having a fixed arc block (52) inside, and the fixed arc block (52) having a rotating arc plate (521) inside.
9. The raw coal bunker for start-up and shutdown as described in claim 8, characterized in that: The fixed arc block (52) is provided with a second arc plate (5211) inside, and a fourth elastic element (5212) is provided between the first arc plate (511) and the second arc plate (5211).
10. The raw coal bunker for start-up and shutdown as described in claim 9, characterized in that: A reset rod (53) is provided between the rotating arc plate (521) and the output rod (42), and an inclined block (54) is provided on the outer side of the movable disk (21).