Water granulated slag dehydration treatment system for blast furnace slag
By improving the design of the feeding device, crusher, and vibrating dewatering screen, the problems of poor feeding, insufficient crushing, and low screening efficiency in the slag treatment system were solved, achieving efficient and stable slag treatment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-21
- Publication Date
- 2026-03-24
AI Technical Summary
Existing slag treatment systems are inflexible in the feeding process, prone to clogging, have poor crushing effect, low screening efficiency, and a loose overall design, resulting in resource waste and environmental pollution.
The design incorporates a feed hopper with multiple sets of side plates, pull-out baffles, a crushing shaft rotating in opposite directions, and multiple layers of screens. The composite screen structure, along with a vibrating dewatering screen and guide plates, enables precise control and efficient processing.
It improves the flexibility and efficiency of feeding, enhances the crushing effect, ensures screening accuracy and dewatering effect, reduces equipment blockage and material loss, and improves resource recovery rate.
Smart Images
Figure CN224034138U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to blast furnace slag treatment technical field especially relates to a water granulated slag dewatering treatment system for blast furnace slag. BACKGROUND
[0002] In industrial production, water granulated slag is a common industrial waste, for example, a large amount of water granulated slag is produced in the process of steel smelting etc. Water granulated slag usually contains a large amount of water and particle impurities of different particle sizes, if directly discharged or improperly treated, not only will cause resource waste, also will cause serious pollution to the environment.
[0003] At present, the existing water granulated slag treatment mode has many drawbacks. In the feeding link, the traditional feeding device structure is single, mostly fixed feeding hopper, it is difficult to flexibly adjust the feeding amount and feeding mode according to the actual production demand, the problems of feeding not smooth or feeding too much leading to equipment blockage are prone to appear. Moreover, in the feeding process, there is lack of effective buffer and guiding device, water granulated slag is easy to splash, influence the working environment.
[0004] In the crushing and screening stage, the crushing effect of part of the crusher is poor, the design of the crushing shaft is unreasonable, the rotation direction is single, the crushing blade lacks fine structure, leading to insufficient crushing of water granulated slag, it is difficult to achieve ideal crushing particle size. At the same time, the structure of the vibrating dewatering screen is also relatively simple, the screen mesh layer is less, the screen hole diameter is not reasonably set, the large particle impurities in the water granulated slag cannot be effectively removed, and the screen mesh material is single, wear and blockage phenomenon are prone to appear, influence the screening efficiency and dewatering effect.
[0005] In addition, the existing water granulated slag dewatering treatment system lacks systematicness and coordination in overall design, the connection between each unit is not close enough, leading to water granulated slag to be easy to leak and lose in the treatment process, reduce the treatment efficiency and resource recovery rate. Therefore, it has important practical significance to research and develop a kind of efficient, stable and innovative water granulated slag dewatering treatment system. UTILITY MODEL CONTENT
[0006] In order to solve some problems existing in the prior art, the utility model provides a kind of water granulated slag dewatering treatment system for blast furnace slag, a series of components and structure are carefully designed, effectively solve the problems of low treatment efficiency, poor dewatering effect and incomplete impurity removal existing in the existing water granulated slag dewatering treatment system, realize the efficient and accurate treatment of water granulated slag.
[0007] The utility model provides a water granulated slag dewatering treatment system for blast furnace slag, including dewatering treatment system body, the dewatering treatment system includes feeding device, the feeding device is connected with the crushing and screening unit, the feeding device is used for conveying water granulated slag to the crushing and screening unit, the crushing and screening unit includes crusher and vibration dewatering screen, the crusher carries out the crushing treatment to water granulated slag, and the water granulated slag after crushing enters vibration dewatering screen and carries out screening to remove the large particle impurities therein.
[0008] As a further improvement of the utility model, in order to avoid the crushing and screening unit overload caused by too much feeding, affecting the treatment effect, the feeding device includes a feeding hopper, the feeding hopper is composed of multiple side plates, the side plates of the feeding hopper are provided with feeding baffles, the feeding baffles are pullably arranged between the feeding baffles, and a feeding groove is arranged below the feeding hopper and connected with the crushing and screening unit.
[0009] As a further improvement of the utility model, in order to increase the contact area and crushing opportunity of water granulated slag and the crushing blades, the water granulated slag can be effectively crushed, the crusher includes a crushing cylinder connected with the feeding device, at least two groups of crushing shafts are arranged inside the crushing cylinder, a power drive motor is arranged outside the cylinder for the crushing shafts, and a plurality of crushing blades are arranged on the crushing shafts.
[0010] As a further improvement of the utility model, in order to make the water granulated slag receive different direction extrusion force and shear force in the crushing cylinder, the rotating directions of the crushing shafts are opposite, the crushing blades are further provided with crushing fine teeth, and one group of the crushing blades is higher than the other group of devices.
[0011] As a further improvement of the utility model, in order to effectively classify and screen the large particle impurities with different particle sizes in the water granulated slag, at least two layers of screen meshes are arranged inside the vibration dewatering screen, the screen hole diameter of the upper screen mesh is larger than that of the lower screen mesh, the screen meshes are cooperatively provided with screen frames, the screen frames are arranged around the cylinder, a liquid outlet port is cooperatively arranged at the bottom of the vibration dewatering screen, a liquid outlet valve is cooperatively arranged at the liquid outlet port, and a vibration power source is cooperatively arranged at the screen frame.
[0012] As a further improvement of the utility model, in order to ensure that the screen mesh is not easy to be damaged in the long-term use process and can withstand the impact and friction of the water granulated slag, the screen mesh is provided in a composite structure, the screen mesh is composed of a metal mesh and an elastic rubber layer, the elastic rubber layer is attached to the surface of the metal mesh, and the lowermost screen mesh is arranged at a certain angle with the horizontal line.
[0013] As a further improvement of the utility model, in order to facilitate the timely discharge of the screened water slag, and avoid the accumulation of water slag in the vibrating dewatering screen, a discharge port is arranged on one side of the vibrating dewatering screen in cooperation with the screen mesh, and a flow guide plate is arranged in cooperation with the discharge port.
[0014] During operation, the feeding device is started, and the opening of the pullable feeding baffle is adjusted according to the flow of water slag and processing requirements. By controlling the opening of the feeding baffle, the amount of water slag entering the crushing and screening unit can be accurately controlled, avoiding overloading of the equipment due to excessive feeding or affecting processing efficiency due to insufficient feeding.
[0015] The water slag enters the feeding hopper and is uniformly transported to the crusher of the crushing and screening unit through the feeding groove. During the transportation process, the design of the feeding groove ensures smooth flow of the water slag, reducing the risk of blockage of the water slag during the transportation process.
[0016] The power drive motor of the crusher is turned on, and the crushing shaft starts to rotate. Due to the opposite rotation directions of the crushing shafts, the water slag is subjected to different direction extrusion forces and shearing forces in the crushing cylinder. This unique movement mode can more effectively crush the water slag.
[0017] After the water slag enters the crushing cylinder, it collides and rubs with the high-speed rotating crushing blades. The crushing teeth on the crushing blades further enhance the crushing effect, crushing the water slag into smaller particles. Multiple crushing shafts work together to ensure that the water slag can be fully crushed, providing good conditions for the subsequent screening process.
[0018] The crushed water slag enters the vibrating dewatering screen from the crusher outlet. The vibrating dewatering screen starts to work, and the water slag continuously moves on the screen mesh through vibration.
[0019] The multiple layers of screen meshes arranged inside the vibrating dewatering screen start to play a role. The screen mesh of the upper layer has a larger diameter, allowing larger particles and part of the water to pass through, while larger impurities are intercepted on the upper layer screen mesh. The screen mesh of the lower layer has a smaller diameter, further screening out smaller particles and water, ensuring that only fine particles meeting the requirements can pass through the screen mesh.
[0020] During the screening process, the water is discharged through the pores of the screen mesh and the liquid outlet port. The operator can adjust the opening of the liquid outlet valve according to the actual situation to control the dewatering speed and effect. Through the grading and dewatering effects of the multiple layers of screen meshes, effective dewatering and impurity removal of the water slag are realized.
[0021] The fine particles of the water slag after screening treatment are discharged through the discharge port on one side of the vibrating dewatering screen. The flow guide plate arranged in cooperation with the discharge port can guide the discharge direction of the water slag, so that the water slag is accurately discharged into the designated collection container.
[0022] The utility model has the advantages that:
[0023] High-efficiency feeding and pretreatment:
[0024] The feeding device is reasonably designed, the feeding hopper formed by multiple groups of side plates spliced not only has stable structure, but also facilitates adjustment of the size of the feeding port according to actual needs (realized by the pullable feeding baffle), thereby improving the flexibility and efficiency of feeding.
[0025] The feeding chute is directly connected below the feeding hopper to the crushing and screening unit, thereby reducing loss and pollution in the material transfer process and ensuring the continuity and efficiency of the water slag treatment.
[0026] Optimized crushing effect:
[0027] The crusher adopts a crushing cylinder directly connected with the feeding device, and at least two groups of crushing shafts with opposite rotation directions are arranged inside, which makes the water slag subjected to more uniform shearing force in the crushing process, thereby improving the crushing efficiency.
[0028] The multiple crushing blades and crushing fine teeth arranged on the crushing shafts further enhance the crushing effect and ensure that the water slag is fully crushed.
[0029] Fine screening and dewatering:
[0030] The vibration dewatering screen is internally provided with at least two layers of screens, and the upper layer of screen has a larger diameter than the lower layer, which can more effectively remove large-particle impurities in the water slag while retaining small particles, thereby improving the screening accuracy.
[0031] The screen adopts a composite structure (metal wire mesh + elastic rubber layer), which not only ensures the accuracy of screening, but also enhances the wear resistance and impact resistance of the screen, thereby prolonging the service life.
[0032] The liquid outlet port and liquid outlet valve arranged at the bottom of the vibration dewatering screen facilitate the collection and treatment of the liquid generated in the screening process, thereby realizing the preliminary dewatering of the water slag.
[0033] Convenient discharge and flow guide:
[0034] The discharge port arranged on one side of the vibration dewatering screen cooperates with the flow guide plate, so that the water slag after screening can be smoothly discharged, thereby avoiding the accumulation and clogging of the material and improving the processing efficiency.
[0035] The design of the flow guide plate can also adjust the discharge direction according to actual needs, thereby increasing the flexibility and applicability of the system. BRIEF DESCRIPTION OF DRAWINGS
[0036] In order to facilitate the understanding of those skilled in the art, the present utility model will be further described below in combination with the drawings:
[0037] Fig. 1 is a structural diagram of the present utility model.
[0038] Fig. 2 This is a structural diagram of the crushing blade.
[0039] Fig. 3 This is a structural diagram of a sieve.
[0040] Among them, 1 is the feeding device, 2 is the crushing and screening unit, 3 is the crusher, 4 is the vibrating dewatering screen, 5 is the feeding hopper, 6 is the side plate, 7 is the feeding baffle, 8 is the feeding trough, 9 is the crushing cylinder, 10 is the crushing shaft, 11 is the power drive motor, 12 is the crushing blade, 13 is the crushing fine tooth, 14 is the screen, 15 is the screen frame, 16 is the liquid outlet port, 17 is the liquid outlet valve, 18 is the vibration power source, 19 is the metal wire mesh, 20 is the elastic rubber layer, 21 is the discharge port, and 22 is the guide plate. Detailed Implementation
[0041] To enable those skilled in the art to better understand the technical solutions in this application, the following description is provided in conjunction with the appendix. Figs. 1-3 The present invention will be further described below. The following embodiments are only used to illustrate the technical solution of the present invention more clearly, and should not be used to limit the protection scope of the present invention.
[0042] like Figs. 1-3 The illustrated blast furnace slag dewatering system includes a dewatering system body, which includes a feeding device 1 connected to a crushing and screening unit 2. The feeding device 1 is used to transport the slag to the crushing and screening unit 2. The crushing and screening unit 2 includes a crusher 3 and a vibrating dewatering screen 4. The crusher 3 crushes the slag, and the crushed slag enters the vibrating dewatering screen 4 for screening to remove large particles of impurities.
[0043] The feeding device 1 includes a feeding hopper 5, which is composed of multiple sets of side plates 6 spliced together. A feeding baffle 7 is provided on the side plate 6 of the feeding hopper 5. The feeding baffle 7 is removable from the other side plate 6. A feeding trough 8 is provided below the feeding hopper 5 and is connected to the crushing and screening unit 2.
[0044] The crusher 3 includes a crushing cylinder 9 connected to the feeding device 1. At least two sets of crushing shafts 10 are provided inside the crushing cylinder 9. The crushing shafts 10 are equipped with a power drive motor 11 outside the cylinder. Multiple crushing blades 12 are provided on the crushing shafts 10.
[0045] The crushing shaft 10 rotates in opposite directions, and the crushing blade 12 is also provided with crushing fine teeth 13, with one set of the crushing blade 12 being higher than the other set of equipment.
[0046] The vibration dewatering screen 4 is internally provided with at least two layers of screen meshes 14, the screen mesh 14 of the upper layer is provided with a screen hole diameter larger than that of the screen mesh 14 of the lower layer, the screen meshes 14 are cooperatively provided with screen frames 15, the screen frames 15 are arranged around the cylinder body, the bottom of the vibration dewatering screen 4 is cooperatively provided with a liquid outlet port 16, the liquid outlet port is cooperatively provided with a liquid outlet valve 17, and the screen frames 15 are cooperatively provided with a vibration power source 18.
[0047] The screen mesh 14 is provided in a composite structure, the screen mesh 14 is composed of a metal wire mesh 19 and an elastic rubber layer 20, the elastic rubber layer 20 is attached to the surface of the metal wire mesh 19 and arranged, and the lowermost screen mesh 14 is arranged at a certain angle with the horizontal line.
[0048] One side of the vibration dewatering screen 4 is cooperatively provided with a discharge port 21 and a guide plate 22.
[0049] When the utility model works, the feeding device 1 is started, the opening of the pullable feeding baffle 7 is adjusted according to the flow and processing requirement of the water slag, the opening of the feeding baffle 7 is controlled, the water slag amount entering the crushing and screening unit 2 is accurately controlled, and the equipment overload caused by excessive feeding or the processing efficiency affected by insufficient feeding is avoided.
[0050] The water slag enters from the feeding hopper 5 and is uniformly transported to the crusher 3 of the crushing and screening unit 2 through the feeding groove 8. In the conveying process, the design of the feeding groove 8 ensures the smooth flow of the water slag and reduces the risk of blockage of the water slag in the conveying process.
[0051] The power drive motor 11 of the crusher 3 is started, and the crushing shaft 10 starts to rotate. Since the rotating directions of the crushing shafts 10 are opposite, the water slag is subjected to different direction extrusion force and shear force in the crushing cylinder body 9, and this unique movement mode can more effectively crush the water slag.
[0052] After the water slag enters the crushing cylinder body 9, the water slag collides and rubs with the high-speed rotating crushing blade 12. The crushing fine teeth 13 on the crushing blade 12 further enhance the crushing effect, and the water slag is crushed into smaller particles. Multiple groups of crushing shafts 10 work cooperatively to ensure that the water slag can be fully crushed, thereby providing good conditions for the subsequent screening process.
[0053] The crushed water slag enters the vibration dewatering screen 4 from the outlet of the crusher 3. The vibration dewatering screen 4 starts to work, and the water slag is continuously moved on the screen mesh 14 through vibration.
[0054] The multi-layer screen 14 inside the vibrating dewatering screen 4 starts to work. The upper layer screen 14 has larger screen hole diameter, allowing larger particles and part of water to pass through, while larger impurities are intercepted on the upper layer screen 14. The lower layer screen 14 has smaller screen hole diameter, further screening out smaller particles and water, ensuring that only fine particles meeting the requirements can pass through the screen 14.
[0055] During the screening process, water is discharged through the pores of the screen 14 and the liquid outlet port 16. The operator can adjust the opening of the liquid outlet valve 17 according to the actual situation to control the dewatering speed and effect. Through the grading screening and dewatering effect of the multi-layer screen 14, effective dewatering and impurity removal of the water slag are realized.
[0056] The fine particles of the water slag after screening treatment are discharged through the discharge port 21 on one side of the vibrating dewatering screen 4. The guide plate 22 matched with the discharge port 21 can guide the discharge direction of the water slag, so that the water slag is accurately discharged into the designated collection container.
[0057] The utility model discloses not limited to the above embodiment, on the basis of the technical scheme disclosed in the utility model, the technical content disclosed in the utility model, some technical features in it can be replaced and deformed without creative labor, and these replacements and deformations are within the protection scope of the utility model.
Claims
1. A blast furnace slag dewatering system, comprising a dewatering system body, characterized in that, The dewatering system includes a feeding device (1), which is connected to a crushing and screening unit (2). The feeding device (1) is used to transport water slag to the crushing and screening unit (2). The crushing and screening unit (2) includes a crusher (3) and a vibrating dewatering screen (4). The crusher (3) crushes the water slag, and the crushed water slag enters the vibrating dewatering screen (4) for screening to remove large particles of impurities.
2. The slag dewatering treatment system for blast furnace slag according to claim 1, characterized in that, The feeding device (1) includes a feeding hopper (5), which is composed of multiple sets of side plates (6). A feeding baffle (7) is provided on the side plate (6) of the feeding hopper (5). The feeding baffle (7) and the feeding baffle (7) are removable. A feeding trough (8) is provided below the feeding hopper (5) and is connected to the crushing and screening unit (2).
3. The slag dewatering system for blast furnace slag according to claim 1, characterized in that, The crusher (3) includes a crushing cylinder (9) connected to the feeding device (1). The crushing cylinder (9) is provided with at least two sets of crushing shafts (10). The crushing shafts (10) are equipped with a power drive motor (11) outside the cylinder. The crushing shafts (10) are provided with multiple crushing blades (12).
4. A slag dewatering treatment system for blast furnace slag according to claim 3, characterized in that, The crushing shaft (10) rotates in opposite directions, and the crushing blade (12) is also provided with crushing fine teeth (13), with one set of the crushing blades (12) being higher than the other set of equipment.
5. A blast furnace slag dewatering system according to claim 1, characterized in that, The vibrating dewatering screen (4) has at least two layers of screens (14) inside. The screen hole diameter of the upper screen (14) is larger than that of the lower screen (14). The screen (14) is equipped with a screen frame (15) which surrounds the cylinder. The bottom of the vibrating dewatering screen (4) is equipped with a liquid outlet port (16) and a liquid outlet valve (17). The screen frame (15) is equipped with a vibration power source (18).
6. A slag dewatering treatment system for blast furnace slag according to claim 5, characterized in that, The screen (14) adopts a composite structure. The screen (14) is composed of a metal wire mesh (19) and an elastic rubber layer (20). The elastic rubber layer (20) is attached to the surface of the metal wire mesh (19). The bottom screen (14) is set at a certain angle to the horizontal line.
7. A blast furnace slag dewatering system according to claim 5, characterized in that, The vibrating dewatering screen (4) has a discharge port (21) on one side in conjunction with the screen mesh (14), and the discharge port (21) is equipped with a guide plate (22).