Steel slag into the kiln and coal gangue into the grate cooling machine integration device
Patent Information
- Application Number
- CN202522072653.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-26
- Publication Date
- 2026-10-09
- Estimated Expiration
- 2035-09-26
AI Technical Summary
[0005]为了弥补以上不足，本实用新型提供了一种钢渣入窑与煤矸石入篦冷机一体化装置，旨在改善现有技术中部分钢渣入窑与煤矸石入篦冷机一体化装置设备分散、流程割裂的问题
[0016]1、本实用新型中，通过煤矸石活化预处理机构、物料输送机构、颚式破碎机等集成，煤矸石经预处理后可通过传送带、螺旋输送组件直接送篦冷机，钢渣破碎筛选后也借同一输送系统输送，简化工艺流程，减少设备间衔接损耗，节省占地面积与设备投资，同时便于控制器统一调控，提升整体运行效率，降低生产与管理成本。
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Figure CN224838474U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of industrial solid waste treatment equipment, and in particular to an integrated device for steel slag entering the kiln and coal gangue entering the grate cooler. Background Technology
[0002] Steel slag entering the kiln involves sending steelmaking waste slag into equipment such as a rotary kiln for high-temperature treatment to achieve harmlessness and resource utilization. Coal gangue entering the grate cooler involves sending coal gangue (coal mining waste) into a grate cooler for cooling, which facilitates subsequent utilization, such as brick making and power generation. The integrated device is a solid waste treatment equipment that can treat steel slag at high temperature in the kiln and cool coal gangue in the grate cooler, achieving synergistic treatment and resource utilization of the two.
[0003] In existing technologies, some steel slag is pretreated and then sent to a rotary kiln for high-temperature calcination to recover iron and generate building material raw materials. Coal gangue enters a grate cooler and is cooled using waste heat from the kiln tail, while also providing some heat to the kiln body. The two processes work together to achieve energy cascade utilization and solid waste resource recovery.
[0004] In existing technologies, some integrated devices for steel slag entering the kiln and coal gangue entering the grate cooler have problems such as dispersed equipment and fragmented processes. The cumbersome connection between equipment leads to material loss and low efficiency. At the same time, the dispersed equipment occupies a large area, has high investment, requires multiple systems to be controlled separately, has high manual coordination and operation costs, and has poor overall operational stability. Therefore, an integrated device for steel slag entering the kiln and coal gangue entering the grate cooler is proposed to solve the above problems. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides an integrated device for steel slag entering the kiln and coal gangue entering the grate cooler, aiming to improve the problems of scattered equipment and fragmented processes in some existing integrated devices for steel slag entering the kiln and coal gangue entering the grate cooler.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: an integrated device for steel slag entering the kiln and coal gangue entering the grate cooler, comprising a conveyor belt, a coal gangue activation pretreatment mechanism fixedly connected to the top rear side of the conveyor belt, a material conveying mechanism provided on the front side of the conveyor belt, three bases fixedly connected to the bottom of the material conveying mechanism, a grate cooler device fixedly connected to the right side of the material conveying mechanism, and a jaw crusher provided on the top left side of the material conveying mechanism;
[0007] The material conveying mechanism includes a conveying pipe, the rear side of which is located on the front side of the conveyor belt. A spiral conveying assembly is installed inside the conveying pipe. A controller is fixedly connected to the top of the conveying pipe, and a screening assembly is fixedly connected to the top left side of the conveying pipe.
[0008] As a further description of the above technical solution: the spiral conveying assembly includes a driving device, the driving device is externally fixedly connected to the left side of the conveying pipe, the driving end of the driving device is fixedly connected to a rotating shaft, the rotating shaft is externally fixedly connected to a propeller blade, and the propeller blade is externally disposed inside the conveying pipe.
[0009] As a further description of the above technical solution: a feed hopper is fixedly connected to the top of the conveying pipe, an inclined plate is fixedly connected to the top of the feed hopper, and the top of the inclined plate is fixedly connected to the front side of the conveyor belt.
[0010] As a further description of the above technical solution: the screening assembly includes a screening bucket, the bottom of which is fixedly connected to the top left side of the conveying pipe, two screens are fixedly connected inside the screening bucket, and the top of the screening bucket is located at the bottom of the jaw crusher;
[0011] As a further description of the above technical solution: the coal gangue activation pretreatment mechanism includes a crushing component, the bottom of which is located on the top left side of the conveyor belt, three support columns are fixedly connected to the bottom of the crushing component, a drying component is fixedly connected to the top of the crushing component, and a crushing component is fixedly connected to the front side of the drying component.
[0012] As a further description of the above technical solution: the crushing assembly includes a crushing chamber, the outer bottom side of which is fixedly connected to the top of the three support columns, a grinding device is provided inside the crushing chamber, and a feeding chamber is fixedly connected to the bottom of the crushing chamber, the bottom of which is located on the top left side of the conveyor belt.
[0013] As a further description of the above technical solution: the drying process component includes a drying chamber, the bottom of which is fixedly connected to the top of the pulverizing chamber, a pulverizing device is fixedly connected inside the drying chamber, and a drying device is fixedly connected to the top of the drying chamber.
[0014] As a further description of the above technical solution: the crushing assembly includes a pre-treatment chamber, the rear side of which is fixedly connected to the front side of the drying chamber, a crushing roller device is fixedly connected inside the pre-treatment chamber, a feed inlet is fixedly connected to the top of the pre-treatment chamber, a guide plate is fixedly connected to the bottom of the pre-treatment chamber, and the end of the guide plate is fixedly connected to the front opening slot of the drying chamber.
[0015] This utility model has the following beneficial effects:
[0016] 1. In this utility model, by integrating a coal gangue activation pretreatment mechanism, a material conveying mechanism, a jaw crusher, etc., the coal gangue after pretreatment can be directly sent to the grate cooler via a conveyor belt and a screw conveyor assembly. The steel slag after crushing and screening is also conveyed by the same conveying system, which simplifies the process flow, reduces the connection loss between equipment, saves the floor space and equipment investment, and facilitates unified control by the controller, improves the overall operating efficiency, and reduces production and management costs.
[0017] 2. In this utility model, the coal gangue undergoes preliminary crushing by the crushing component, secondary crushing and drying in the drying chamber, and grinding and activation in the crushing chamber. This effectively breaks down the dense structure of the coal gangue, enhances its reactivity, and removes excess moisture. The gangue is then precisely transported to the grate cooler via a conveyor belt and screw conveyor assembly, preventing blockages and significantly improving the utilization efficiency of the coal gangue. This lays the foundation for efficient reactions within the grate cooler and reduces resource waste. Attached Figure Description
[0018] Figure 1 This is a three-dimensional schematic diagram of an integrated device for steel slag entering the kiln and coal gangue entering the grate cooler proposed in this utility model;
[0019] Figure 2 This is a schematic diagram of the propeller blade of an integrated device for steel slag entering the kiln and coal gangue entering the grate cooler proposed in this utility model.
[0020] Figure 3 for Figure 2 Enlarged view of point A in the middle;
[0021] Figure 4 for Figure 2 Enlarged view of point B in the middle.
[0022] Legend:
[0023] 1. Conveyor belt; 2. Coal gangue activation and pretreatment mechanism; 21. Crushing assembly; 211. Crushing bin; 212. Grinding device; 213. Feeding bin; 22. Drying assembly; 221. Drying bin; 222. Crushing device; 223. Drying device; 23. Crushing assembly; 231. Pretreatment bin; 232. Crushing roller device; 233. Feed inlet; 234. Guide plate; 24. Support column; 3. Material conveying mechanism; 31. Conveying pipe; 32. Screw conveyor assembly; 321. Drive device; 322. Rotating shaft; 323. Propeller blade; 324. Feed hopper; 325. Inclined plate; 33. Controller; 34. Screening assembly; 341. Screening hopper; 342. Screen; 4. Base; 5. Jaw crusher; 6. Grate cooler device. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] Reference Figure 1 , Figure 2 , Figure 4 This utility model provides an embodiment of an integrated device for steel slag entering a kiln and coal gangue entering a grate cooler. The device includes a conveyor belt 1 with anti-slip textured surfaces, capable of horizontal circulation to transport coal gangue. A coal gangue activation pretreatment mechanism 2 is fixedly connected to the top rear side of the conveyor belt 1. This mechanism is used for crushing, drying, grinding, and activation treatment of the coal gangue. A material conveying mechanism 3 is provided at the front side of the conveyor belt 1, enabling directional transport of both coal gangue and steel slag. Three bases 4 are fixedly connected to the bottom of the material conveying mechanism 3, each with anti-slip pads to provide stable support. A grate cooler device 6 is fixedly connected to the right side of the material conveying mechanism 3. The grate cooler device 6 is used for... For cooling the material, a jaw crusher 5 is installed on the top left side of the material conveying mechanism 3. The jaw crusher 5 crushes the blocky steel slag by the squeezing action of the moving jaw and the fixed jaw. The material conveying mechanism 3 includes a conveying pipe 31, which is a cylindrical metal pipe with a smooth inner wall to reduce the material conveying resistance. The rear side of the conveying pipe 31 is set on the front side of the conveyor belt 1. A screw conveying assembly 32 is installed inside the conveying pipe 31. The screw conveying assembly 32 can push the material to move along the axial direction of the conveying pipe 31 by rotation. A controller 33 is fixedly connected to the top of the conveying pipe 31. The controller 33 can receive signals from various components and regulate the operation of the device. A screening assembly 34 is fixedly connected to the top left side of the conveying pipe 31. The screening assembly 34 can classify the steel slag particles by particle size.
[0026] The screw conveyor assembly 32 includes a drive unit 321, which is a variable frequency motor with adjustable output speed. The drive unit 321 is externally fixedly connected to the left side of the conveying pipe 31. A rotating shaft 322 is fixedly connected to the drive end of the drive unit 321. The rotating shaft 322 is made of metal and rotates coaxially with the drive unit 321. A propeller blade 323 is fixedly connected to the outside of the rotating shaft 322. The propeller blade 323 is spirally distributed and its edges are in contact with the inner wall of the conveying pipe 31. The outside of the propeller blade 323 is located inside the conveying pipe 31. A feed hopper 324 is fixedly connected to the top of the conveying pipe 31. The feed hopper 324 has a funnel-shaped structure that is wider at the top and narrower at the bottom to facilitate material feeding. The material falls into the conveyor pipe 31. The top of the feed hopper 324 is fixedly connected to an inclined plate 325. The inclined plate 325 has a 30° inclination angle and a smooth surface, which can guide the material on the conveyor belt 1 to slide into the feed hopper 324. The top of the inclined plate 325 is fixedly connected to the front side of the conveyor belt 1. The screening assembly 34 includes a screening hopper 341. The screening hopper 341 is a square metal bin with a wear-resistant coating on the inner wall. The bottom of the screening hopper 341 is fixedly connected to the top left side of the conveyor pipe 31. The inside of the screening hopper 341 is fixedly connected to two screens 342. The two screens 342 have different apertures and are distributed in parallel vertically, which can realize graded screening. The top of the screening hopper 341 is set at the bottom of the jaw crusher 5.
[0027] Reference Figure 1 , Figure 3 The coal gangue activation pretreatment mechanism 2 includes a crushing component 21, which can grind and activate the coal gangue. The bottom of the crushing component 21 is located on the top left side of the conveyor belt 1. Three support columns 24 are fixedly connected to the bottom of the crushing component 21. The three support columns 24 are of the same height and made of high-strength steel, which can stably support the crushing component 21. A drying component 22 is fixedly connected to the top of the crushing component 21. The drying component 22 can crush and dry the coal gangue. A crushing component 23 is fixedly connected to the front side of the drying component 22. The crushing component 23 can perform initial crushing of the blocky coal gangue. The crushing assembly 21 includes a crushing chamber 211, which is a cylindrical chamber with an internal sound insulation layer to reduce grinding noise. The bottom of the crushing chamber 211 is fixedly connected to the top of three support columns 24. The crushing chamber 211 is equipped with a grinding device 212, which grinds coal gangue through the relative rotation of the grinding roller and the grinding disc. The bottom of the crushing chamber 211 is fixedly connected to a feeding chamber 213, which is a conical structure and has an adjustable valve at the bottom to control the falling speed of the coal gangue. The bottom of the feeding chamber 213 is located on the top left side of the conveyor belt 1.
[0028] The drying assembly 22 includes a drying chamber 221, which is made of metal and has an insulation layer on its outer wall to reduce heat loss. The bottom of the drying chamber 221 is fixedly connected to the top of the crushing chamber 211. A crushing device 222 is fixedly connected inside the drying chamber 221. The crushing device 222 has multiple high-speed rotating crushing blades that can refine coal gangue into fine particles. A drying device 223 is fixedly connected to the top of the drying chamber 221. The drying device 223 can generate hot airflow to dry the coal gangue. The crushing assembly 23 includes a pretreatment chamber 231, which is a square chamber with wear-resistant liners on its inner wall to extend its service life. The rear side of the pretreatment bin 231 is fixedly connected to the front side of the drying bin 221. The crushing roller device 232 is fixedly connected inside the pretreatment bin 231. The crushing roller device 232 consists of two relatively rotating rollers that can crush coal gangue by extrusion pressure. The top of the pretreatment bin 231 is fixedly connected to the feed inlet 233. The feed inlet 233 has a funnel-shaped structure and a protective railing on the edge to facilitate feeding and ensure safety. The bottom of the pretreatment bin 231 is fixedly connected to the guide plate 234. The guide plate 234 is made of metal and has a smooth surface. It can guide the crushed coal gangue to slide into the drying bin 221. The end of the guide plate 234 is fixedly connected to the front opening slot of the drying bin 221.
[0029] Working principle: The coal gangue to be processed is fed into the crushing component 23 of the coal gangue activation and pretreatment mechanism 2 by the operator. The coal gangue enters the pretreatment chamber 231 through the feed inlet 233 at the top of the pretreatment chamber 231. The crushing roller device 232 of the crushing component 23 is activated. The crushing roller device 232 crushes the lumpy coal gangue into primary crushed material with smaller particle size through the extrusion and shearing force generated by the rotation of the roller body. The primary crushed material falls to the guide plate 234 at the bottom of the pretreatment chamber 231 under the action of gravity, and slides into the drying chamber 221 of the drying treatment component 22 along the inclined angle of the guide plate 234. After the initial crushing and pretreatment of coal gangue is completed, the primary crushed material entering the drying chamber 221 first comes into contact with the crushing device 222 inside the drying chamber 221. The crushing device 222 uses a high-speed rotating crushing blade assembly to perform secondary crushing of the primary crushed material, refining it into fine particles that meet the requirements of activation pretreatment. At the same time, the drying device 223 at the top of the drying chamber 221 is activated. The hot airflow generated by the drying device 223 evenly fills the interior of the drying chamber 221, drying the fine coal gangue particles after secondary crushing, removing excess moisture from the coal gangue, and avoiding caking and blockage problems during subsequent transportation.
[0030] Under the influence of gravity, the dried fine coal gangue falls from the bottom of the drying chamber 221 into the crushing chamber 211 of the crushing assembly 21. The dried fine coal gangue entering the crushing chamber 211 comes into contact with the grinding device 212 inside the crushing chamber 211. The grinding device 212, through the relative rotation of the grinding rollers and grinding discs, grinds and activates the fine coal gangue, breaking down its dense structure and increasing its reactivity. The activated coal gangue powder is discharged through the feeding hopper 213 at the bottom of the crushing chamber 211. The discharge port of the feeding hopper 213 faces the top left side of the conveyor belt 1, and the coal gangue powder falls evenly onto the conveying surface of the conveyor belt 1. After the conveyor belt 1 starts, it transports the activated coal gangue powder along the conveying direction. At the material conveying mechanism 3 on the front side, the coal gangue powder conveyed by the conveyor belt 1 slides into the feed hopper 324 through the inclined plate 325 at the top of the material conveying mechanism 3, and falls into the conveying pipe 31 through the feed hopper 324. At the same time, the controller 33 starts the drive device 321 of the screw conveying assembly 32. The drive device 321 drives the rotating shaft 322 and the externally fixed propeller blade 323 to rotate synchronously. The propeller blade 323 pushes the coal gangue powder to the right along the axial direction of the conveying pipe 31 in the conveying pipe 31. Finally, the coal gangue mixture is discharged from the right outlet of the conveying pipe 31 under the push of the propeller blade 323 and directly enters the feed port of the grate cooler device 6, completing the whole process of coal gangue entering the grate cooler.
[0031] The steel slag to be processed is first fed into the jaw crusher 5. The jaw crusher 5 crushes the blocky steel slag into small steel slag particles through the periodic extrusion of the moving jaw and the fixed jaw. The crushed steel slag particles fall into the screening hopper 341 of the screening component 34. The two screens 342 in the screening hopper 341 screen the steel slag particles by particle size, removing impurities that exceed the size limit. The steel slag particles that meet the requirements fall into the conveying pipe 31 through the screens 342. The controller 33 adjusts the speed of the drive device 321 of the screw conveyor component 32 according to the steel slag entering the kiln, and controls the conveying speed of the propeller blades 323. Under the propulsion of the propeller blades 323, the steel slag particles in the conveying pipe 31 are conveyed to the right along the conveying pipe 31, and the steel slag is conveyed to the grate cooler device 6 to complete the conveying and preparation of the steel slag for entering the kiln. The controller 33, as the control core of the material conveying mechanism 3, can receive the operating parameter signals of each component in real time and automatically adjust the operating status of each component according to the preset process parameters such as conveying volume. When the material in the conveying pipe 31 is blocked, the controller 33 reduces the speed of the drive device 321 or stops the operation. After the blockage is cleared, it resumes normal operation to ensure the stable and efficient operation of the entire device.
[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An integrated device for steel slag entering a kiln and coal gangue entering a grate cooler, comprising a conveyor belt (1), characterized in that: A coal gangue activation pretreatment mechanism (2) is fixedly connected to the top rear side of the conveyor belt (1), a material conveying mechanism (3) is provided on the front side of the conveyor belt (1), three bases (4) are fixedly connected to the bottom of the material conveying mechanism (3), a grate cooler device (6) is fixedly connected to the right side of the material conveying mechanism (3), and a jaw crusher (5) is provided on the top left side of the material conveying mechanism (3). The material conveying mechanism (3) includes a conveying pipe (31), the rear side of which is located on the front side of the conveyor belt (1), a spiral conveying assembly (32) is provided inside the conveying pipe (31), a controller (33) is fixedly connected to the top of the conveying pipe (31), and a screening assembly (34) is fixedly connected to the top left side of the conveying pipe (31).
2. The integrated device for steel slag entering the kiln and coal gangue entering the grate cooler according to claim 1, characterized in that: The spiral conveying assembly (32) includes a drive device (321), which is fixedly connected to the left side of the conveying pipe (31). A rotating shaft (322) is fixedly connected to the drive end of the drive device (321), and a propeller blade (323) is fixedly connected to the outside of the rotating shaft (322). The outside of the propeller blade (323) is disposed inside the conveying pipe (31).
3. The integrated device for steel slag entering the kiln and coal gangue entering the grate cooler according to claim 1, characterized in that: The top of the conveying pipe (31) is fixedly connected to a feed hopper (324), the top of the feed hopper (324) is fixedly connected to an inclined plate (325), and the top of the inclined plate (325) is fixedly connected to the front side of the conveyor belt (1).
4. The integrated device for steel slag entering the kiln and coal gangue entering the grate cooler according to claim 1, characterized in that: The screening assembly (34) includes a screening bucket (341), the bottom of which is fixedly connected to the top left side of the conveying pipe (31), and two screens (342) are fixedly connected inside the screening bucket (341). The top of the screening bucket (341) is located at the bottom of the jaw crusher (5).
5. The integrated device for steel slag entering the kiln and coal gangue entering the grate cooler according to claim 1, characterized in that: The coal gangue activation pretreatment mechanism (2) includes a crushing component (21). The bottom of the crushing component (21) is located on the top left side of the conveyor belt (1). Three support columns (24) are fixedly connected to the bottom of the crushing component (21). A drying treatment component (22) is fixedly connected to the top of the crushing component (21). A crushing component (23) is fixedly connected to the front side of the drying treatment component (22).
6. The integrated device for steel slag entering the kiln and coal gangue entering the grate cooler according to claim 5, characterized in that: The crushing assembly (21) includes a crushing chamber (211), the outer bottom side of which is fixedly connected to the top of the three support columns (24). A grinding device (212) is provided inside the crushing chamber (211). A feeding chamber (213) is fixedly connected to the bottom of the crushing chamber (211), and the bottom of the feeding chamber (213) is located on the top left side of the conveyor belt (1).
7. The integrated device for steel slag entering the kiln and coal gangue entering the grate cooler according to claim 6, characterized in that: The drying assembly (22) includes a drying chamber (221), the bottom of which is fixedly connected to the top of the pulverizing chamber (211), a pulverizing device (222) is fixedly connected inside the drying chamber (221), and a drying device (223) is fixedly connected to the top of the drying chamber (221).
8. The integrated device for steel slag entering the kiln and coal gangue entering the grate cooler according to claim 7, characterized in that: The crushing assembly (23) includes a pretreatment chamber (231), the rear side of which is fixedly connected to the front side of the drying chamber (221). A crushing roller device (232) is fixedly connected inside the pretreatment chamber (231). A feed inlet (233) is fixedly connected to the top of the pretreatment chamber (231). A guide plate (234) is fixedly connected to the bottom of the pretreatment chamber (231). The end of the guide plate (234) is fixedly connected to the front opening slot of the drying chamber (221).