Thermal power plant tailing screening device for cement production
By designing a tailslag screening device for cement production thermal power plant for multi-stage screening and circulating crushing, the existing equipment is not detailed enough and lacks circulating screening function, and efficient multi-stage screening and crushing of raw materials is achieved. Effect.
Patent Information
- Application Number
- CN202421106587.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-21
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-05-21
AI Technical Summary
The existing tail slag screening devices for thermal power plants for cement production are not detailed enough, and lack the circulating screening function, making them inconvenient to use.
A tailing screening device for cement production thermal power plant, including a crushing box, a screening device and a conveying device, is designed. The device realizes circulating screening of raw materials through multiple stages of filter plates, combining crushing and vibration mechanisms.
Multi-stage fine screening of raw materials is realized, the screening effect and working efficiency of fly ash is improved, and the existing equipment is not meticulous enough and lacks circulation screening function.
Smart Images
Figure CN222446672U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of building materials, in particular to a thermal power plant tailing screening device for cement production. Background Art
[0002] A large amount of dust is generated during cement production, which has a certain impact on the environment. The application of fly ash blending technology can reduce the use of cement clinker, reduce energy consumption and emissions during the production process, and meet the requirements of environmental protection.
[0003] Thermal power plant tailings are a type of industrial solid waste, which is the waste discharged by thermal power enterprises. The abandonment and accumulation of tailings not only occupies land, but also pollutes the environment. Since the composition of thermal power plant tailings is similar to that of coal gangue raw materials, we can try to use thermal power plant tailings to replace coal gangue in cement production, utilize waste, reduce environmental pollution and reduce cement production costs. The raw material of the coal gangue mixed material currently used is coal gangue. The production of cement clinker has high procurement costs and the quality of raw materials is not very stable. It can neither meet the requirements of cement cost nor meet production and supply needs. The recovery of thermal power plant tailings requires a screening device, and the existing screening devices are usually not detailed enough and do not have the function of cyclic screening, which is inconvenient to use. Therefore, a thermal power plant tailings screening device for cement production is needed. Utility Model Content
[0004] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art and to provide a thermal power plant tailings screening device for cement production, which can solve the problems that the existing screening devices are usually not detailed enough, do not have the function of cyclic screening, and are inconvenient to use.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a tailing screening device for a thermal power plant for cement production, comprising a crushing box, a screening device and a conveying device, a screening box is welded at the bottom of the crushing box, a bottom plate is welded at the bottom of the screening box, the screening device comprises a large-aperture filter plate, a medium-aperture filter plate, a small-aperture filter plate, a first collecting box, a second collecting box and a third collecting box, the large-aperture filter plate is fixedly connected to the screening box, the medium-aperture filter plate is arranged below the large-aperture filter plate, the medium-aperture filter plate is fixedly connected to the screening box, and the small-aperture filter plate is located below the medium-aperture filter plate. Below the small-aperture filter plate, the small-aperture filter plate is fixedly connected to the screening box, the first collecting box is located below the small-aperture filter plate, the first collecting box is slidably connected to the screening box, the second collecting box is arranged on one side of the first collecting box, and the third collecting box is arranged on one side of the second collecting box. The conveying device includes a conveying box, a feeding trough, a conveying auger and a third motor. The conveying box is fixedly connected to the top of the bottom plate, the third motor is fixedly connected to the top of the conveying box, the conveying auger is fixedly connected to the output shaft of the third motor, the third motor is rotatably connected to the conveying box, and the feeding trough is fixedly connected to the conveying box.
[0006] Preferably, the screening box is provided with three discharge ports, and the conveying box is provided with a feed hopper.
[0007] Preferably, a mounting plate is fixedly connected to one side of the crushing box, a first motor is fixedly connected to the top of the mounting plate, a rotating rod is fixedly connected to the output shaft of the first motor, there are two rotating rods, gears are fixedly sleeved on the outer surfaces of the two rotating rods, the two gears are meshingly connected, and crushing rollers are fixedly sleeved on the outer surfaces of the two rotating rods.
[0008] Preferably, the top of the base plate is fixedly connected to a second motor, the output shaft of the second motor is fixedly connected to a rotating rod, the top of the rotating rod is rotatably connected to the mounting plate, and three rotating parts are fixedly sleeved on the outer surface of the rotating rod.
[0009] Preferably, a vibrating member is slidably connected to the outer surface of the rotating member, and a spring is fixedly connected between the rotating member and the vibrating member.
[0010] Preferably, a plurality of support rods are fixedly connected to the bottom of the crushing box, and the bottom of each support rod is fixedly connected to the bottom plate. A plurality of reinforcing ribs are fixedly connected between the crushing box and the screening box.
[0011] Compared with the prior art, the beneficial effects of the utility model are:
[0012] (1) The tailings screening device for thermal power plants used in cement production realizes multi-stage screening of raw materials through the action of multiple filter plates. Large granular raw materials enter the interior of the conveying box through the feed hopper on the conveying box. The conveying auger feeds the raw materials into the interior of the feeding trough and crushes them again, thereby realizing the cyclic screening of the raw materials, improving the practicability of the device, and improving the screening effect of fly ash.
[0013] (2) The tailings screening device for thermal power plants used for cement production drives two crushing rollers to rotate through the first motor, thereby crushing large particles of raw materials and grinding agglomerated fly ash, which is beneficial to the subsequent screening work. The second motor drives the rotating rod and the rotating part to rotate, so that the vibrating part intermittently contacts the filter plate, causing the filter plate to vibrate, thereby accelerating the screening speed of the filter plate and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments:
[0015] Figure 1 It is a schematic diagram of the main body of the utility model;
[0016] Figure 2 It is a schematic diagram of the screening device of the utility model;
[0017] Figure 3 It is a schematic diagram of the rotating part of the utility model.
[0018] Figure numerals: 1. crushing box; 2. screening box; 3. support rod; 4. bottom plate; 5. reinforcing ribs; 6. conveying box; 7. feeding trough; 8. crushing roller; 9. first motor; 10. rotating rod; 11. gear; 12. mounting plate; 13. second motor; 14. rotating rod; 15. rotating part; 16. vibrating part; 17. spring; 18. large-aperture filter plate; 19. medium-aperture filter plate; 20. small-aperture filter plate; 21. first collecting box; 22. second collecting box; 23. third collecting box; 24. conveying auger; 25. third motor. DETAILED DESCRIPTION
[0019] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.
[0020] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0021] In the description of the present utility model, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.
[0022] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.
[0023] See also Figure 1-3The utility model provides a technical solution: a tailing screening device for a thermal power plant for cement production, comprising a crushing box 1, a screening device and a conveying device, a screening box 2 is welded at the bottom of the crushing box 1, a bottom plate 4 is welded at the bottom of the screening box 2, the screening device comprises a large-aperture filter plate 18, a medium-aperture filter plate 19, a small-aperture filter plate 20, a first collecting box 21, a second collecting box 22 and a third collecting box 23, the large-aperture filter plate 18 is fixedly connected to the screening box 2, the medium-aperture filter plate 19 is arranged on the large-aperture filter plate 1 8, the medium-pore filter plate 19 is fixedly connected to the screening box 2, the small-pore filter plate 20 is located below the medium-pore filter plate 19, the small-pore filter plate 20 is fixedly connected to the screening box 2, the first collecting box 21 is located below the small-pore filter plate 20, the first collecting box 21 is slidably connected to the screening box 2, the second collecting box 22 is arranged on one side of the first collecting box 21, and the third collecting box 23 is arranged on one side of the second collecting box 22. The multi-stage screening of the raw materials is achieved through the action of multiple filter plates, wherein the large granular raw materials The medium-sized particle raw materials are sent out through the discharge port, and then enter the third collecting box 23 for collection after being screened by the medium-aperture filter plate 19. The small-aperture particle raw materials are screened by the small-aperture filter plate 20 and enter the interior of the second collecting box 22. The ultrafine particles fall into the interior of the first collecting box 21, completing the multi-stage screening of fly ash. The conveying device includes a conveying box 6, a feeding trough 7, a conveying auger 24 and a third motor 25. The conveying box 6 is fixedly connected to the top of the bottom plate 4, and the third motor 25 is fixedly connected to the top of the conveying box 6. The conveying auger 24 is fixedly connected to the output shaft of the third motor 25, and the third motor 25 is rotatably connected to the conveying box 6. The feeding trough 7 is fixedly connected to the conveying box 6. Three discharge ports are opened on the screening box 2, and a feeding hopper is provided on the conveying box 6. The large-sized particle raw materials pass through the feeding hopper on the conveying box 6 and enter the interior of the conveying box 6. The conveying auger 24 sends the raw materials into the interior of the feeding trough 7 and crushes them again, so as to realize the circular screening of the raw materials, improve the practicality of the device, and improve the screening effect of fly ash.
[0024] Furthermore, a mounting plate 12 is fixedly connected to one side of the crushing box 1, a first motor 9 is fixedly connected to the top of the mounting plate 12, a rotating rod 10 is fixedly connected to the output shaft of the first motor 9, there are two rotating rods 10, gears 11 are fixedly sleeved on the outer surfaces of the two rotating rods 10, the two gears 11 are meshingly connected, crushing rollers 8 are fixedly sleeved on the outer surfaces of the two rotating rods 10, the two crushing rollers 8 are driven to rotate by the first motor 9, the large particles of raw materials are crushed, and the agglomerated fly ash is crushed, which is beneficial to the subsequent screening work.
[0025] Furthermore, a second motor 13 is fixedly connected to the top of the bottom plate 4, and a rotating rod 14 is fixedly connected to the output shaft of the second motor 13. The top of the rotating rod 14 is rotatably connected to the mounting plate 12, and three rotating members 15 are fixedly sleeved on the outer surface of the rotating rod 14. A vibrating member 16 is slidably connected to the outer surface of the rotating member 15, and a spring 17 is fixedly connected between the rotating member 15 and the vibrating member 16. The rotation of the second motor 13 drives the rotating rod 14 and the rotating member 15 to rotate, so that the vibrating member 16 intermittently contacts the filter plate, causing the filter plate to vibrate, thereby accelerating the screening speed of the filter plate and improving the working efficiency.
[0026] Secondly, a plurality of support rods 3 are fixedly connected to the bottom of the crushing box 1 , and the bottom of each support rod 3 is fixedly connected to the bottom plate 4 . A plurality of reinforcing ribs 5 are fixedly connected between the crushing box 1 and the screening box 2 .
[0027] Working principle: The first motor 9 drives the two crushing rollers 8 to rotate, the large-grained raw materials are crushed, the agglomerated fly ash is crushed, and the crushed fly ash enters the interior of the screening box 2, and the multi-stage screening of the raw materials is realized through the action of multiple filter plates, wherein the large-grained raw materials are sent out through the discharge port, the medium-grained raw materials are screened by the medium-aperture filter plate 19 and enter the third collecting box 23 for collection, the small-aperture particle raw materials are screened by the small-aperture filter plate 20 and enter the interior of the second collecting box 22, and the ultrafine particles fall into the interior of the first collecting box 21, completing the multi-stage screening of the fly ash, and the large-grained raw materials enter the interior of the conveying box 6 through the feed hopper on the conveying box 6, and the conveying auger 24 sends the raw materials into the interior of the feeding trough 7 and crushes them again, realizing the circular screening of the raw materials, and the second motor 13 rotates to drive the rotating rod 14 and the rotating member 15 to rotate, so that the vibrating member 16 intermittently contacts the filter plate, causing the filter plate to vibrate, thereby accelerating the screening speed of the filter plate.
[0028] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.
Claims
1. A thermal power plant tailings screening device for cement production, characterized in that: include: A crushing box (1), a screening box (2) is welded to the bottom of the crushing box (1), and a bottom plate (4) is welded to the bottom of the screening box (2); A screening device, the screening device comprising a large-pore filter plate (18), a medium-pore filter plate (19), a small-pore filter plate (20), a first collection box (21), a second collection box (22) and a third collection box (23), the large-pore filter plate (18) being fixedly connected to the screening box (2), the medium-pore filter plate (19) being arranged below the large-pore filter plate (18), the medium-pore filter plate (19) being fixedly connected to the screening box (2), the small-pore filter plate (20) being arranged below the medium-pore filter plate (19), the small-pore filter plate (20) being fixedly connected to the screening box (2), the first collection box (21) being arranged below the small-pore filter plate (20), the first collection box (21) being slidably connected to the screening box (2), the second collection box (22) being arranged on one side of the first collection box (21), and the third collection box (23) being arranged on one side of the second collection box (22); The conveying device comprises a conveying box (6), a feeding trough (7), a conveying auger (24) and a third motor (25), wherein the conveying box (6) is fixedly connected to the top of the bottom plate (4), the third motor (25) is fixedly connected to the top of the conveying box (6), the conveying auger (24) is fixedly connected to the output shaft of the third motor (25), the third motor (25) is rotationally connected to the conveying box (6), and the feeding trough (7) is fixedly connected to the conveying box (6).
2. A thermal power plant tailings screening device for cement production according to claim 1, characterized in that: The screening box (2) is provided with three discharge ports, and the conveying box (6) is provided with a feed hopper.
3. A thermal power plant tailings screening device for cement production according to claim 2, characterized in that: A mounting plate (12) is fixedly connected to one side of the crushing box (1), a first motor (9) is fixedly connected to the top of the mounting plate (12), a rotating rod (10) is fixedly connected to the output shaft of the first motor (9), two rotating rods (10) are provided, gears (11) are fixedly sleeved on the outer surfaces of the two rotating rods (10), the two gears (11) are meshingly connected, and crushing rollers (8) are fixedly sleeved on the outer surfaces of the two rotating rods (10).
4. A thermal power plant tailings screening device for cement production according to claim 3, characterized in that: The top of the bottom plate (4) is fixedly connected to a second motor (13); the output shaft of the second motor (13) is fixedly connected to a rotating rod (14); the top of the rotating rod (14) is rotatably connected to the mounting plate (12); and three rotating members (15) are fixedly sleeved on the outer surface of the rotating rod (14).
5. A thermal power plant tailings screening device for cement production according to claim 4, characterized in that: The outer surface of the rotating member (15) is slidably connected to a vibrating member (16), and a spring (17) is fixedly connected between the rotating member (15) and the vibrating member (16).
6. A thermal power plant tailings screening device for cement production according to claim 5, characterized in that: The bottom of the crushing box (1) is fixedly connected to a plurality of support rods (3), and the bottom of each support rod (3) is fixedly connected to the bottom plate (4). A plurality of reinforcing ribs (5) are fixedly connected between the crushing box (1) and the screening box (2).