A device for preventing clogging of coarse powder separator in pulverizing system of thermal power plant
By designing anti-blocking devices for shells, filters, cleaning mechanisms and dispersing mechanisms in the coarse powder separator of the powder making system of thermal power plant, the problem of blockage of the powder return pipe is solved, and efficient separation and reduced production costs are achieved.
Patent Information
- Application Number
- CN202420314181.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-20
- Publication Date
- 2025-04-01
- Estimated Expiration
- 2034-02-20
AI Technical Summary
The powder return pipe of the coarse powder separator of the powder production system of the thermal power plant is easily blocked, and the existing technology is difficult to effectively clean the blockage, resulting in the powder production system that needs to stop running to clean up debris, which reduces the reliability and practicality of the equipment.
An anti-blocking device including a housing, a filter, a cleaning mechanism and a dispersion mechanism is designed. The cleaning mechanism drives the rotating rod and cleaning board to clean the debris on the filter through the hand-rotating rod, and the dispersing mechanism re-grinds the coal powder through the motor and dispersing plate to avoid clogging.
It effectively solves the problem of blockage of powder backing pipe, improves separation efficiency, reduces production energy consumption and cost, and improves the reliability and safety of equipment.
Smart Images
Figure CN222695346U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of separation equipment, and specifically relates to an anti-blocking device for a coarse powder separator of a powder making system of a thermal power plant. Background Art
[0002] The coarse powder separator of the pulverizing system of a thermal power plant is an important auxiliary equipment. It separates the coarse coal powder from the gas-powder mixture coming out of the coal mill and returns it to the coal mill for re-grinding through the return powder pipe. When debris enters the separator through the coal mill, it will get stuck in the return powder pipe, causing the return powder pipe to be blocked. At this time, the corresponding pulverizing system needs to be stopped to remove the debris.
[0003] The existing authorization announcement number CN216910571U for the "Device for Eliminating Blockage of the Powder Return Pipe of the Coal Mill Coal Separator in the Boiler Pulverizing System" is only a rotary grate arranged in the inner cavity of the filter and the outer cylinder, which is driven to rotate by a rotary shaft. If the inside is blocked by coarse powder and debris, it is difficult to clean up the coarse powder and debris at the blocked position on the rotary grate by rotating the rotary grate. In actual use, blockage still occurs, reducing practicality. Utility Model Content
[0004] In view of the above problems existing in the prior art, the purpose of the utility model is to provide a coarse powder separator anti-clogging device for a pulverizing system of a thermal power plant.
[0005] In order to solve the above problems, the technical solution adopted by the utility model is as follows:
[0006] A device for preventing a coarse powder separator of a powder making system in a thermal power plant from being blocked comprises a shell, the top of the shell is provided with an entry hole, one side of the entry hole is provided with a flap, the bottom of the shell is provided with a skewed cylinder, and is characterized in that a filter screen is provided in the shell, a cleaning mechanism is provided on the upper part of the filter screen, and a breaking mechanism is provided on the lower part of the filter screen.
[0007] Furthermore, the cleaning mechanism includes a hand-turned rod arranged on the top of the shell, a rotating rod is arranged below the hand-turned rod, cleaning plates are arranged on both sides of the rotating rod, and the bottom end of the rotating rod is arranged in the base and can rotate freely in the base.
[0008] Furthermore, the base includes a protective plate and a chassis, the lower end of the protective plate is arranged on the chassis, and the protective plate and the chassis are both provided with through holes for the rotating rod to pass through.
[0009] Furthermore, the rotating rod comprises an operating rod and a docking rod, the top of the operating rod is connected to the hand-rotating rod, and the bottom of the operating rod is detachably connected to the docking rod.
[0010] Furthermore, a fixing plate is provided below the operating rod, and a groove matching the fixing plate is provided at the top of the docking rod, and is fixed by a pin rod.
[0011] Furthermore, the cleaning plate is detachably connected to the docking rod.
[0012] Furthermore, the breaking mechanism includes a shell, a motor and a breaking plate, the top end of the shell is connected to the bottom end of the chassis, the motor is fixedly arranged in the shell, and the rotating shaft of the motor is connected to the breaking plate.
[0013] Furthermore, the flap comprises a large flap and a small flap, the large flap is hingedly connected to the top of the shell, and the large flap is hingedly connected to the small flap.
[0014] Furthermore, coal powder brushes are provided on the upper end, lower end and side surfaces of the cleaning plate.
[0015] Furthermore, the scattering plate (33) is a metal filter.
[0016] Compared with the prior art, the beneficial effects of the utility model are:
[0017] The utility model effectively solves the blockage of the powder return pipe and has the advantages of simple structure, high separation efficiency and reduced production energy consumption and production cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is a schematic diagram of the structure of a coarse powder separator anti-clogging device of a pulverizing system of a thermal power plant according to the utility model;
[0019] Figure 2 It is a cross-sectional schematic diagram of a coarse powder separator anti-clogging device of a pulverizing system of a thermal power plant according to the utility model;
[0020] Figure 3 This is a schematic diagram of the cleaning mechanism structure of the utility model;
[0021] Figure 4 This is a schematic diagram of the structure of the dispersing mechanism of the utility model;
[0022] In the figure: 1. Shell; 12. Crooked barrel; 13. Large flap; 14. Small flap; 15. Filter; 16. Inlet hole; 2. Cleaning mechanism; 21. Hand lever; 22. Operating lever; 23. Fixed plate; 24. Pin rod; 25. Nut; 26. Docking rod; 27. Protective plate; 28. Chassis; 29. Cleaning plate; 3. Scattering mechanism; 31. Shell; 32. Motor; 33. Scattering plate. DETAILED DESCRIPTION
[0023] The utility model is further described below in conjunction with specific embodiments.
[0024] like Figures 1 to 4 As shown, the shell 1 of the utility model includes an entry hole 16, a flap, a filter 15 and a crooked cylinder 12. The entry hole 16 is arranged at the top of the shell 1, and a flap is provided on one side of the entry hole 16. The flap includes a large flap 13 and a small flap 14. The large flap 13 is hingedly connected to the top of the shell 1, and the large flap 13 is hingedly connected to the small flap 14. A crooked cylinder 12 is provided at the bottom of the shell 1, and a filter 15 is fixedly provided inside the shell 1. A cleaning mechanism 2 is provided on the upper part of the filter 15, and a breaking mechanism 3 is provided on the lower part of the filter 15.
[0025] like Figure 2~3 As shown, the cleaning mechanism 2 includes a hand-turned rod 21 disposed at the top of the housing 1, a rotating rod (the utility model is fixedly connected by welding) is disposed below the hand-turned rod 21, and the bottom end of the rotating rod is disposed in the base and can rotate freely in the base. The rotating rod includes an operating rod 22 and a docking rod 26, the top of the operating rod 22 is connected to the hand-turned rod 21, and the bottom of the operating rod 22 is detachably connected to the docking rod 26. A fixing plate 23 is disposed below the operating rod 22, and two through holes matching the pin rod 24 are symmetrically opened at the bottom end of the fixing plate 23, and the fixing plate 23 is inserted into the groove disposed at the top end of the docking rod 26, and the pin rod 24 passes through the through hole horizontally, and nuts 25 are disposed at both ends of the pin rod 24, and the two nuts 25 are fixed to the two ends of the pin rod 24 by threaded rotation. The docking rod 26 is arranged on the base, and the base includes a protective plate 27 and a bottom plate 28 (the protective plate 27 and the bottom plate 28 of the utility model are both provided with through holes for the rotating rod to pass through), the lower end of the protective plate 27 is arranged on the bottom plate 28, and the outer surface of the bottom plate 28 is fixedly connected to the filter screen 15. Cleaning plates 29 are arranged on both sides of the docking rod 26, and coal powder brushes are arranged on the upper end, the lower end and the side of the cleaning plate 29.
[0026] The cleaning plate 29 is detachably connected to the docking rod 26 .
[0027] The cleaning plate 29 and the docking rod 26 are connected in a buckle manner.
[0028] A snap block and a snap strip are provided on the side where the cleaning plate 29 is connected to the docking rod 26, and a snap groove is matched on the side of the docking rod 26. With this snap structure, when cleaning is required after long-term use, the staff can open the large flap 13, remove the cleaning plate 29 and take it out for cleaning.
[0029] like Figure 4 As shown, the scattering mechanism 3 includes a shell 31, a motor 32, and a scattering plate 33. The top end of the shell 31 is connected to the bottom end of the chassis 28. The motor 32 is fixedly arranged in the shell 31, and the rotating shaft of the motor 32 is fixedly connected to the scattering plate 33.
[0030] The breaking plate (33) of the utility model is preferably a metal filter.
[0031] like Figures 1 to 4 The utility model is shown as a coarse powder separator anti-blocking device for a pulverizing system of a thermal power plant. In actual operation, the coal powder enters through the entry hole 16, and the staff manually operates the hand-turned lever 21 to drive the cleaning plate 29 to rotate on the filter screen 15. After being filtered by the filter screen 15, the debris and coarse powder are blocked on the filter screen 15 and can be taken out through the inspection port. At the same time, the cleaning mechanism 2 will continue to filter the coal powder without affecting the work; the coal powder filtered by the filter screen 15 falls into the scattering mechanism 3, and the scattering plate 33 is driven by the motor 32 of the scattering mechanism 3 to be re-ground, and finally discharged from the crooked barrel 12. The utility model is easy to operate, highly practical, and improves the reliability and safety of the equipment.
Claims
1. A coarse powder separator anti-blocking device for a pulverizing system of a thermal power plant, comprising a housing (1), wherein the top of the housing (1) is provided with an inlet hole (16), one side of the inlet hole (16) is provided with a flap, and the bottom of the housing (1) is provided with a skewed cylinder (12), characterized in that: A filter screen (15) is provided in the housing (1), a cleaning mechanism (2) is provided on the upper part of the filter screen (15), and a breaking mechanism (3) is provided on the lower part of the filter screen (15).
2. The anti-blocking device for a coarse powder separator in a pulverizing system of a thermal power plant according to claim 1, characterized in that: The cleaning mechanism (2) comprises a hand-turned rod (21) arranged on the top of the housing (1), a rotating rod is arranged below the hand-turned rod (21), cleaning plates (29) are arranged on both sides of the rotating rod, and the bottom end of the rotating rod is arranged in the base and can rotate freely in the base.
3. The anti-blocking device for a coarse powder separator in a pulverizing system of a thermal power plant according to claim 2, characterized in that: The base comprises a protective plate (27) and a bottom plate (28); the lower end of the protective plate (27) is arranged on the bottom plate (28); and both the protective plate (27) and the bottom plate (28) are provided with a through hole for the rotating rod to pass through.
4. The anti-blocking device for a coarse powder separator in a pulverizing system of a thermal power plant according to claim 2, characterized in that: The rotating rod comprises an operating rod (22) and a docking rod (26); the top of the operating rod (22) is connected to the hand-rotating rod (21), and the bottom of the operating rod (22) is detachably connected to the docking rod (26).
5. The anti-blocking device for a coarse powder separator in a pulverizing system of a thermal power plant according to claim 4, characterized in that: A fixing plate (23) is provided below the operating rod (22), and a groove matching the fixing plate (23) is provided at the top end of the docking rod (26), and is fixed by a pin rod (24).
6. The anti-blocking device for coarse powder separator of a pulverizing system of a thermal power plant according to claim 2, characterized in that: The cleaning plate (29) is detachably connected to the docking rod (26).
7. The anti-blocking device for coarse powder separator of a pulverizing system of a thermal power plant according to claim 1, characterized in that: The scattering mechanism comprises a casing (31), a motor (32) and a scattering plate (33); the top end of the casing (31) is connected to the bottom end of the chassis (28); the motor (32) is fixedly arranged in the casing (31); and the rotating shaft of the motor (32) is connected to the scattering plate (33).
8. The anti-blocking device for a coarse powder separator in a pulverizing system of a thermal power plant according to claim 1, characterized in that: The flap comprises a large flap (13) and a small flap (14); the large flap (13) is hingedly connected to the top end of the shell (1); and the large flap (13) is hingedly connected to the small flap (14).
9. The anti-blocking device for a coarse powder separator in a pulverizing system of a thermal power plant according to claim 2, characterized in that: The upper end, the lower end and the side surfaces of the cleaning plate (29) are provided with coal powder brushes.
10. The anti-blocking device for coarse powder separator of a pulverizing system of a thermal power plant according to claim 7, characterized in that: The breaking plate (33) is a metal filter.