Coal drying and crushing device for thermal power plant
By designing a coal drying and crushing device including the main box, storage chamber, thermal conduction plate, crushing chamber, crushing shaft, crushing rack and scraper, the problems of coal adhesion and drying in the existing device are solved, efficient crushing and automatic cleaning are achieved, and the working efficiency and practicality of the device are improved.
Patent Information
- Application Number
- CN202421644944.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-12
- Publication Date
- 2025-04-22
- Estimated Expiration
- 2034-07-12
AI Technical Summary
The existing coal drying and crushing devices for thermal power plants are prone to poor crushing effects due to wet coal sticking during the crushing process, which increases the burden on the device, and it is difficult to remove the dry coal, which affects the practicality of the device.
A coal drying and crushing device including a main box, a storage chamber, a thermal conduction plate, a crushing chamber, a crushing shaft, a crushing rack and a scraper are designed. The device drives the crushing shaft and crushing frame to rotate through the crushing motor, the scraper cleans the wet coal, and conducts heat through the heat conducting plate to dry the coal, and finally realizes automatic cleaning of coal through the rotating door.
The device can effectively crush large pieces of coal, ensure that the coal is dry and automatically cleaned, reduce the burden on the crushing rack, improve work efficiency and enhance the practicality of the device.
Smart Images
Figure CN222778139U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of thermal power generation, in particular to a coal drying and crushing device for a thermal power plant. Background Art
[0002] A thermal power plant is a factory that uses combustible materials as fuel to produce electricity. The combustion of fuel heats water to generate steam. The steam pressure drives the turbine to rotate, and the turbine drives the generator to generate electricity.
[0003] During the use of the existing coal drying and crushing equipment for thermal power plants, some wet coal often sticks to the crushing frame during the crushing process, which increases the burden on the crushing device and further leads to poor crushing effect, thus affecting work efficiency. Moreover, most of the dried coal is not easy to take out and needs to be contacted with other auxiliary devices, which further leads to poor practicality of the device. Utility Model Content
[0004] The purpose of the utility model is to provide a coal drying and crushing device for a thermal power plant, which is used to overcome the above-mentioned defects in the prior art.
[0005] The above technical objectives of the utility model are achieved through the following technical solutions:
[0006] A coal drying and crushing device for a thermal power plant comprises a main box body, a storage chamber is provided in the main box body, the storage chamber serves to store water, a heating tube is fixedly provided in the storage chamber, and the heating tube serves to heat, an inclined heat conducting plate is fixedly provided in the storage chamber, a supporting frame is fixedly provided on the upper end face of the main box body, a crushing chamber is provided in the supporting frame, two groups of left-right symmetrical crushing shafts are rotatably provided between the front and rear walls of the crushing chamber, a crushing frame is fixedly provided on the outer cylindrical surface of the crushing shaft, and the crushing frame serves to crush, two groups of left-right symmetrical scrapers are fixedly provided on the left and right walls of the crushing chamber, respectively, and the end faces of the scrapers on opposite sides abut against the crushing frame.
[0007] Preferably, an entry frame is fixedly provided on the upper end surface of the support frame, and an entry cavity with an opening facing upward is provided in the entry frame and is communicated with the crushing cavity.
[0008] Preferably, two groups of left-right symmetrical grinding motors are fixedly provided in the front wall of the grinding chamber, and the front end surface of the grinding shaft is dynamically connected to the grinding motors.
[0009] Preferably, a rotating chamber connected to the outside is provided in the supporting frame, a rotating motor is rotatably provided between the left and right walls of the rotating chamber, and a rotating door is fixedly provided on the outer circumference of the rotating motor.
[0010] Preferably, a rotating shaft is fixedly provided in the left wall of the rotating chamber, and the left end surface of the rotating motor is dynamically connected to the rotating shaft.
[0011] Preferably, a controller is fixedly provided on the left end surface of the main box body, so that the controller plays a cooperative role in regulating various movements.
[0012] Compared with the prior art, the advantages of the utility model are:
[0013] 1. The effect of the utility model is that: the coal to be processed is put into the entry chamber, and the crushing motors on the left and right sides start to start, thereby mobilizing the crushing shaft and the crushing frame to start rotating towards each other. When the coal enters between the two groups of crushing frames on the left and right sides, the crushing of the coal is ensured, and it is further ensured that large pieces of coal can be crushed into small pieces of coal, which is further convenient for the use of thermal power generation. Moreover, because the end face of the opposite side of the scraper is in contact with the outer cylindrical surface of the crushing frame, it is ensured that some wet coal is scraped off, thereby ensuring the cleaning of the outer cylindrical surface of the crushing frame, further reducing the burden on the crushing frame, thereby ensuring the working efficiency of the crushing frame.
[0014] 2. The effect of the utility model is that when the coal enters the upper end surface of the heat conduction plate, the crushing frame starts to start heating, thereby driving the water in the storage chamber to heat up. At this time, the heat is transferred from the heat conduction plate to the coal, thereby achieving rapid drying of the wet coal.
[0015] 3. The effect of the utility model is that when the drying is completed, the rotating shaft starts to start, thereby driving the rotating motor to start rotating, and then driving the rotating door to start rotating. At this time, since the heat conduction plate is installed at an angle, it ensures that the dried coal is discharged quickly, thereby ensuring efficient and automatic cleaning of the coal, thereby ensuring that the device can work continuously and intensively, and further ensuring the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a left view of the utility model;
[0017] Figure 2 It is a front view of the utility model;
[0018] Figure 3 This utility model Figure 2 Schematic diagram of AA in the middle;
[0019] Figure 4 This utility model Figure 2 Schematic diagram of the middle BB;
[0020] Figure 5 This utility model Figure 2 Schematic diagram of CC.
[0021] In the figure:
[0022] 11. Main box; 12. Storage chamber; 13. Heat conduction plate; 14. Rotating door; 15. Rotating chamber; 16. Rotating shaft; 17. Rotating motor; 18. Support frame; 19. Crushing motor; 20. Crushing shaft; 21. Crushing frame; 22. Scraper; 23. Crushing chamber; 24. Entering frame; 25. Entering chamber; 26. Controller; 27. Heating tube. DETAILED DESCRIPTION
[0023] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.
[0024] Embodiment 1
[0025] See also Figure 1-Figure 5 , is the first embodiment of the utility model, which provides an embodiment of a coal drying and crushing device for a thermal power plant, including a main box body 11, a storage chamber 12 is provided in the main box body 11, and the storage chamber 12 plays a role of storing water. A heating pipe 27 is fixedly provided in the storage chamber 12, and the heating pipe 27 plays a heating role. An inclined heat conducting plate 13 is fixedly provided in the storage chamber 12, and a supporting frame 18 is fixedly provided on the upper end surface of the main box body 11, and a crushing chamber 23 is provided in the supporting frame 18. Two groups of left-right symmetrical crushing shafts 20 are rotatably provided between the front and rear walls of the crushing chamber 23, and a crushing frame 21 is fixedly provided on the outer cylindrical surface of the crushing shaft 20, and the crushing frame 21 plays a crushing role. Two groups of left-right symmetrical scrapers 22 are fixedly provided on the left and right walls of the crushing chamber 23, and the opposite side end surfaces of the scrapers 22 abut against the crushing frame 21.
[0026] An entry frame 24 is fixedly disposed on the upper end surface of the support frame 18 . An entry chamber 25 opening upward is disposed in the entry frame 24 and is communicated with the crushing chamber 23 .
[0027] Two groups of symmetric pulverizing motors 19 are fixedly disposed in the front wall of the pulverizing chamber 23 , and the front end surface of the pulverizing shaft 20 is dynamically connected to the pulverizing motors 19 .
[0028] A rotating chamber 15 connected to the outside is arranged in the support frame 18 , a rotating motor 17 is rotatably arranged between the left and right walls of the rotating chamber 15 , and a rotating door 14 is fixedly arranged on the outer circumference of the rotating motor 17 .
[0029] A rotating shaft 16 is fixedly disposed in the left wall of the rotating chamber 15 , and the left end surface of the rotating motor 17 is dynamically connected to the rotating shaft 16 .
[0030] A controller 26 is fixedly disposed on the left end surface of the main box body 11, and the controller 26 plays a role in regulating various movements.
[0031] Specific workflow:
[0032] When in use, the coal needs to be processed and put into the entrance chamber 25. At this time, the crushing motors 19 on the left and right sides start to start, thereby mobilizing the crushing shaft 20 and the crushing frame 21 to start rotating towards each other. When the coal enters between the two groups of crushing frames 21 on the left and right sides, the crushing of the coal is ensured, and it is further ensured that large pieces of coal can be crushed into small pieces of coal, which is further convenient for the use of thermal power generation. Moreover, since the end face of the opposite side of the scraper 22 abuts against the outer cylindrical surface of the crushing frame 21, it is ensured that some wet coal is scraped off.
[0033] Then, under the influence of gravity, the coal enters the upper end surface of the heat conducting plate 13, and the crushing frame 21 starts to heat up, thereby driving the water in the storage chamber 12 to heat up. At this time, the heat is transmitted from the heat conducting plate 13 to the coal, thereby achieving rapid drying of the wet coal. When the drying is completed, the rotating shaft 16 starts to start, thereby driving the rotating motor 17 to start rotating, and then driving the rotating door 14 to start rotating. At this time, since the heat conducting plate 13 is installed at an angle, it ensures that the dry coal is quickly discharged.
[0034] The above description is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any changes or modifications made by any technician in the field of the present invention are included in the patent scope of the present invention.
Claims
1. A coal drying and crushing device for a thermal power plant, comprising a main box (11), characterized in that: A storage chamber (12) is provided in the main housing (11), a heating tube (27) is fixedly provided in the storage chamber (12), an inclined heat conducting plate (13) is fixedly provided in the storage chamber (12), a support frame (18) is fixedly provided on the upper end surface of the main housing (11), a crushing chamber (23) is provided in the support frame (18), and two groups of left-right symmetrical crushing shafts (20) are rotatably provided between the front and rear walls of the crushing chamber (23); A pulverizer frame (21) is fixedly provided on the outer cylindrical surface of the pulverizing shaft (20), and two groups of left-right symmetrical scrapers (22) are fixedly provided on the left and right walls of the pulverizing chamber (23), respectively, and the end surfaces of opposite sides of the scrapers (22) abut against the pulverizer frame (21).
2. The coal drying and crushing device for a thermal power plant according to claim 1, characterized in that: An entry frame (24) is fixedly provided on the upper end surface of the support frame (18), and an entry chamber (25) opening upward is provided in the entry frame (24) and is in communication with the pulverizing chamber (23).
3. The coal drying and crushing device for a thermal power plant according to claim 1, characterized in that: Two groups of left-right symmetrical pulverizing motors (19) are fixedly arranged in the front wall of the pulverizing chamber (23), and the front end surface of the pulverizing shaft (20) is dynamically connected to the pulverizing motors (19).
4. The coal drying and crushing device for a thermal power plant according to claim 1, characterized in that: The support frame (18) is provided with a rotating chamber (15) connected to the outside, a rotating motor (17) is rotatably provided between the left and right walls of the rotating chamber (15), and a rotating door (14) is fixedly provided on the outer circumference of the rotating motor (17).
5. The coal drying and crushing device for a thermal power plant according to claim 4, characterized in that: A rotating shaft (16) is fixedly provided in the left wall of the rotating chamber (15), and the left end surface of the rotating motor (17) is dynamically connected to the rotating shaft (16).
6. The coal drying and crushing device for a thermal power plant according to claim 1, characterized in that: A controller (26) is fixedly provided on the left end surface of the main box body (11).