Rake type metallurgical slag granulating machine and steel slag treatment equipment

Abstract

The utility model provides a rake type metallurgical slag granulating machine and steel slag treatment equipment. The granulating machine comprises a trolley, a first support, a second support and a granulating rake, the first support is fixedly mounted on the trolley; the second support is arranged on the first support, and the second support and the first support form a moving pair which translates up and down; the granulating harrow comprises a harrow head, a harrow rod and a roller, one end of the harrow rod is vertically connected with the middle part of the harrow head in the length direction, and the other end of the harrow rod penetrates through the interior of the second support to form a horizontally moving sliding pair with the second support; the idler wheels are arranged on the two sides of the rake head in the length direction and hinged to the rake head. The rake type granulating machine disclosed by the utility model is light in structure, strong in processing capacity, free from the phenomena of force arm deviation and steel clamping, and high in working efficiency, and can correspond to a plurality of granulating processing stations.

Description

Technical Field

[0001] This utility model relates to the technical field of molten high-temperature steel slag treatment in the metallurgical industry, specifically to a rake-type metallurgical slag granulator and steel slag treatment equipment. Background Technology

[0002] Granulation of metallurgical slag is the first step in metallurgical slag treatment. Existing granulation methods include mechanical granulation, fluid granulation, and composite granulation. Mechanical granulation includes excavator-stirred granulation in pool-type hot quenching and roller granulation in roller crushing hot quenching. Fluid granulation includes water-quenched granulation and air-quenched granulation. Composite granulation includes drum-type slag granulation. Among the above granulation methods, mechanical granulation is the most widely used, especially roller granulation, represented by roller crushing hot quenching, which has a high market share. However, roller granulation involves high investment and low cost-effectiveness. Specific problems include: 1. Heavy roller granulation equipment, with the main unit weighing up to 70 tons (including internal cooling water), large rotational inertia (diameter up to 3.6m), and high starting torque; 2. Prone to steel jamming, making online cleaning difficult and resulting in low equipment utilization. Roller granulation often uses a motor-reducer drive, where the motor-reducer drives the granulation roller to rotate, relying on the tip of the roller teeth to crush the tank shell slag. Motor power is generally greater than 100kW, but the pressure acting on the tank shell slag is less than 100KN, resulting in low efficiency and high energy consumption. A single roller granulation unit has a processing capacity of only about 200,000-300,000 tons / year, leading to low cost-effectiveness.

[0003] Therefore, there is an urgent need for a granulation equipment with large processing capacity, lightweight structure, and strong crushing force. Utility Model Content

[0004] In view of this, the purpose of this utility model embodiment is to provide a rake-type metallurgical slag granulator and steel slag processing equipment to solve the technical problems existing in the prior art.

[0005] To achieve the above objectives, in a first aspect, this utility model provides a rake-type metallurgical slag granulator, the granulator comprising a trolley, a first support, a second support, and a granulation rake;

[0006] The first support is fixedly installed on the trolley;

[0007] The second support is disposed on the first support and forms a sliding pair with the first support for vertical translation.

[0008] The granulating rake includes a rake head, a rake rod, and rollers. One end of the rake rod is perpendicularly connected to the middle part of the rake head along its length, and the other end passes through the interior of the second support to form a horizontally movable pair with the second support.

[0009] The rollers are located on both sides of the rake head along its length and are hinged to the rake head.

[0010] In some possible implementations, the first support includes: a first support body and a guide rail;

[0011] The first support body includes: two symmetrically arranged side plates and a connecting plate, wherein the connecting plate is disposed on the top of the two side plates and forms a gantry structure with the side plates;

[0012] The guide rails are symmetrically arranged on the inner side of the side plate.

[0013] In some possible implementations, the second support includes: a second support body, a lifting cylinder, a guide key, and a support roller;

[0014] The second support body includes a top plate, a bottom plate, and two side plates, wherein the top plate, the bottom plate, and the two side plates form a hollow box-type sleeve structure;

[0015] The rollers are located inside the second support body and are symmetrically arranged on two side plates near the bottom plate to support the rake rod;

[0016] The guide key is located on the outside of the second support body and is fixedly connected to the outside of the two side plates;

[0017] The lifting cylinder is located at the bottom of the second support body, its cylinder barrel is fixedly connected to the trolley, and its cylinder rod is fixedly connected to the base plate.

[0018] In some possible implementations, the guide key of the second support is located within the guide slide of the first support, and the second support and the first support form a sliding pair that can move vertically.

[0019] In some possible implementations, the rake head includes: a main beam, a secondary beam, a lifting cylinder, a number of chisels, and a number of tooth tips;

[0020] The main beam is a box-shaped structure with a groove on its upper end face, and the secondary beam is located in the groove; the bottom of the groove is provided with several holes;

[0021] One end of the drill rod passes through the hole and connects to the bottom of the sub-beam, while the other end of the drill rod connects to the tooth tip; both the drill rod and the tooth tip are hollow structures.

[0022] The cylinder barrel of the lifting cylinder is connected to the top of the main beam, and the cylinder rod of the lifting cylinder is connected to the top of the secondary beam. The secondary beam has translational freedom in the vertical direction relative to the main beam.

[0023] In some possible implementations, the rake head further includes: a baffle plate symmetrically disposed on both sides of the chisel;

[0024] The distance between the bottom of the baffle plate and the apex of the tooth tip is approximately 300mm to 500mm.

[0025] In some possible implementations, the granulating rake further includes: a toothed rack disposed on the rake handle;

[0026] The second support is provided with a gear that matches the rack, and the rack and the gear cooperate to realize the horizontal translational freedom of the granulating rake.

[0027] In some possible implementations, the rake head further includes a spraying device located at the bottom of the main beam and alternately arranged with the chisel.

[0028] In some possible implementations, the number of the drill rods is at least five.

[0029] Secondly, this utility model provides a steel slag treatment equipment, which includes the rake-type metallurgical slag granulator described in the first aspect.

[0030] The beneficial technical effects of the above technical solution are as follows:

[0031] 1. The crushing tank shell is more efficient and energy-saving. Under the same prime mover power, its output is more than 6 times that of the roller crusher; or under the same load, the rake granulation requires less prime mover power; 2. Simple and lightweight structure; 3. Can be used for multiple granulation processing stations. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is a schematic diagram of the overall structure of a rake-type metallurgical slag granulator according to the present invention;

[0034] Figure 2 This is a schematic diagram of the overall structure of a first support according to an embodiment of this utility model;

[0035] Figure 3 This is a side view of a first support according to an embodiment of this utility model;

[0036] Figure 4 This is a schematic diagram of the overall structure of a second support according to an embodiment of this utility model;

[0037] Figure 5This is a top view of a second support according to an embodiment of the present utility model;

[0038] Figure 6 This is a side view of a second support according to an embodiment of the present utility model;

[0039] Figure 7 This is an assembly drawing of a first support and a second support structure according to an embodiment of the present utility model;

[0040] Figure 8 This is a top view of a granulating rake according to an embodiment of the present utility model;

[0041] Figure 9 This is a front view of a granulating rake according to an embodiment of the present invention.

[0042] Explanation of icon numbers:

[0043] 1. Trolley;

[0044] 2. First support; 2-1. First support body; 2-1-1. Side upright plate; 2-1-2. Connecting plate; 2-2. Guide slide;

[0045] 3. Second support; 3-1. Second support body; 3-1-1. Top plate; 3-1-2. Bottom plate; 3-1-3. Side plate; 3-2. Lifting cylinder; 3-3. Guide key; 3-4. Support roller;

[0046] 4. Granulating rake; 4-1. Rake head; 4-1-1. Main beam; 4-1-2. Secondary beam; 4-1-3. Lifting cylinder; 4-1-1. Chisel; 4-1-5. Tooth tip; 4-1-6. Baffle plate; 4-1-7. Rack; 4-1-8. Spraying device; 4-2. Rake rod; 4-3. Roller. Detailed Implementation

[0047] The features and exemplary embodiments of various aspects of this utility model will now be described in detail. Numerous specific details are set forth in the following detailed description to provide a comprehensive understanding of this utility model. However, it will be apparent to those skilled in the art that this utility model can be practiced without requiring some of these specific details. The following description of embodiments is merely intended to provide a better understanding of this utility model by illustrating examples of it. In the accompanying drawings and the following description, at least some well-known structures and techniques have not been shown to avoid unnecessarily obscuring the utility model; and, for clarity, the dimensions of some structures may be exaggerated. Furthermore, the features, structures, or characteristics described below can be combined in any suitable manner in one or more embodiments.

[0048] Figure 1This is a schematic diagram of the overall structure of a rake-type metallurgical slag granulator according to this utility model. Figure 1 As shown, the granulator includes a trolley 1, a first support 2, a second support 3, and a granulating rake 4; the first support 2 is fixedly installed on the trolley 1; the second support 3 is disposed on the first support 2 and forms a vertically movable pair with the first support 2; the granulating rake 4 includes a rake head 4-1, a rake rod 4-2, and rollers 4-3, one end of the rake rod 4-2 is perpendicularly connected to the middle part of the rake head 4-1 in the length direction, and the other end passes through the interior of the second support 3 and forms a horizontally movable pair with the second support 3; the rollers 4-3 are disposed on both sides of the rake head 4-1 in the length direction and are hinged to the rake head 4-1.

[0049] In this embodiment of the invention, the horizontally movable pair formed by the rake 4-2 and the second support 3 can process all steel slag in the work station. The rake granulator of this invention has a lightweight structure, strong processing capacity, and is more efficient and energy-saving in crushing tank shell slag. Under the same prime mover power, its output is more than 6 times that of the roller crusher; or under the same load, the rake granulator requires less prime mover power. Moreover, by moving the trolley 1 horizontally, it can correspond to multiple granulation processing work stations, resulting in high working efficiency. Figure 2 This is a schematic diagram of the overall structure of the first support according to an embodiment of this utility model. Figure 3 This is a side view of a first support according to an embodiment of this utility model, as shown below. Figure 2 and Figure 3 In some embodiments, the first support 2 includes: a first support body 2-1 and a guide slide 2-2; the first support body 2-1 includes: two symmetrically arranged side uprights 2-1-1 and a connecting plate 2-1-2, the connecting plate 2-1-2 is disposed on the top of the two side uprights 2-1-1 and forms a gantry structure with the side uprights 2-1-1; the guide slide 2-2 is symmetrically disposed on the inner side of the side uprights 2-1-1.

[0050] Figure 4 This is a schematic diagram of the overall structure of a second support according to an embodiment of this utility model. Figure 5 This is a top view of a second support according to an embodiment of the present invention. Figure 6 This is a side view of a second support according to an embodiment of the present invention, as shown below. Figures 4 to 6 As shown, Figure 3As shown, in some embodiments, the second support 3 includes: a second support body 3-1, a lifting cylinder 3-2, a guide key 3-3, and a support roller 3-4; the second support body 3-1 includes a top plate 3-1-1, a bottom plate 3-1-2, and two side plates 3-1-3, which together form a hollow box-type sleeve structure; the support roller 3-4 is located inside the second support body 3-1 and is symmetrically arranged on the two side plates 3-1-3 near the bottom plate 3-1-2, for supporting the rake rod 4-2; the guide key 3-3 is located outside the second support body 3-1 and is fixedly connected to the outside of the two side plates 3-1-3; the lifting cylinder 3-2 is located at the bottom of the second support body 3-1, its cylinder barrel is fixedly connected to the trolley 1, and its cylinder rod is fixedly connected to the bottom plate 3-1-2.

[0051] Figure 7 This is an assembly drawing of a first support and a second support structure according to an embodiment of the present invention, as shown below. Figure 7 As shown, in some embodiments, the guide key 3-3 of the second support 3 is located within the guide slide 2-2 of the first support 2, and the second support 3 and the first support 2 form a vertically translating sliding pair. This embodiment can prevent the second support 3 from deviating when it drives the granulating rake 4 to move. In this embodiment, by sliding the guide key 3-3 up and down within the guide slide 2-2, the deviating and swaying of the second support 3 during vertical movement can be avoided. This embodiment, by having the second support 3 slide within the first support 2, can be applied to different initial heights of steel slag.

[0052] Figure 8 This is a top view of a granulating rake according to an embodiment of the present invention. Figure 9 This is a front view of a granulating rake according to an embodiment of the present invention, as shown below. Figure 8 and Figure 9 As shown, in some embodiments, the rake head 4-1 includes: a main beam 4-1-1, a secondary beam 4-1-2, a lifting cylinder 4-1-3, several chisels 4-1-4, and several tooth tips 4-1-5; the main beam 4-1-1 is a box-shaped structure with a groove on its upper end face, and the secondary beam 4-1-2 is located in the groove; several holes are provided at the bottom of the groove; one end of the rod passes through the hole and is connected to the bottom of the secondary beam 4-1-2, and the other end of the chisel 4-1-4 is connected to the tooth tip 4-1-5; the cylinder of the lifting cylinder 4-1-3 is connected to the top of the main beam 4-1-1, and the cylinder rod of the lifting cylinder 4-1-3 is connected to the top of the secondary beam 4-1-2; the secondary beam 4-1-2 has a translational degree of freedom in the vertical direction relative to the main beam 4-1-1.

[0053] In this embodiment, during the crushing of tank shell slag, the lifting cylinder 4-1-3 drives the auxiliary beam 4-1-2 to exert force vertically up and down. There is no lever arm offset, and the force is completely transmitted to the tooth tip 4-1-5. The force on the tooth tip 4-1-5 acts directly on the tank shell slag, that is, the force is directly pressed on to crush it. This not only saves effort but also reduces the phenomenon of steel jamming. Even if steel jamming occurs, the slag steel can be directly rake out of the granulation area. Then, through the moving pair formed by the rake rod 4-2 and the second support 3, the solidified steel slag can be dragged to the discharge port of the solidification tank, which can improve the efficiency of the work.

[0054] The single-unit processing capacity of the granulator in this embodiment of the utility model reaches 500,000 tons / year (one rake-type metallurgical granulator can correspond to multiple granulation processing stations). The granulation rake 4 weighs only 30t and has a lightweight structure. The lifting cylinder 4-1-3 drives the auxiliary beam 4-1-2 to crush the tank shell slag. Its output is vertical up and down, and the force is completely transmitted to the tooth tip 4-1-5 of the granulation rake 4 (taking a hydraulic cylinder diameter of 200mm and a system pressure of 20Mpa as an example, its rake tooth crushing force reaches 628KN, which is more than 6 times that of the roller crusher).

[0055] like Figure 9 As shown, in some embodiments, the rake head 4-1 further includes a baffle plate 4-1-6, which is symmetrically arranged on both sides of the chisel 4-1-4; the distance between the bottom of the baffle plate 4-1-6 and the apex of the tooth tip 4-1-5 is approximately 300mm to 500mm. In this embodiment, by setting the baffle plate 4-1-6, more steel slag can be carried at once during slag discharge, improving slag discharge efficiency.

[0056] like Figure 1 As shown, in some embodiments, the granulating rake 4 further includes a rack 4-1-7, disposed on the rake rod 4-2; the second support 3 further includes a gear, and the second support 3 is provided with a gear that matches the rack 4-1-7. A hydraulic motor disposed on the side plate 3-1-3 of the second support 3 drives the gear to rotate the rack 4-1-7, so that the rake rod 4-2 and the second support 3 form a sliding pair. The rack 4-1-7 and the gear cooperate to realize the horizontal translational freedom of the granulating rake 4. In this embodiment, the rack 4-1-7 and the gear cooperate to make the rake rod 4-2 and the second support 3 form a horizontally movable sliding pair.

[0057] like Figure 9 As shown, in some embodiments, the rake head 4-1 further includes a spraying device 4-1-8, which is located at the bottom of the main beam 4-1-1 and alternately arranged with the chisel 4-1-4. In this embodiment, by alternately arranging the spraying device 4-1-8 on the rake head 4-1, the cooling speed of the hot slag can be accelerated.

[0058] In some embodiments, the number of drill rods 4-1-4 is at least 5. Both the drill rods 4-1-4 and the tooth tips 4-1-5 are hollow structures, which can reduce weight and facilitate water cooling of the drill rods 4-1-4 and the tooth tips 4-1-5, ensuring that the drill rods 4-1-4 and the tooth tips 4-1-5 are stable and wear-resistant at high temperatures and increasing service life.

[0059] In addition, this embodiment also provides a steel slag processing equipment, which includes a rake-type metallurgical slag granulator.

[0060] The single-unit processing capacity of the rake granulator in this embodiment reaches 500,000 tons / year (one rake granulator can correspond to multiple granulation processing stations). The granulation rake 4 weighs only 30t and has a lightweight structure. The lifting cylinder 4-1-3 drives the auxiliary beam 4-1-2 to crush the tank shell slag. Its output is vertical up and down, and the force is completely transmitted to the tooth tip 4-1-5 of the granulation rake 4 (taking a hydraulic cylinder diameter of 200mm and a system pressure of 20Mpa as an example, its rake tooth crushing force reaches 628KN, which is more than 6 times that of the roller crusher). The force of the tooth tip 4-1-5 acts directly on the tank shell slag, and there is no lever arm offset. The phenomenon of steel jamming is reduced. Even if steel jamming occurs, the granulation rake 4 can directly rake the slag steel out of the granulation area.

[0061] This utility model discloses a lightweight rake-type metallurgical slag granulator, whose vertical and horizontal movement design reduces offset and steel jamming, thereby improving granulation efficiency.

[0062] This embodiment of the utility model enhances the stability of the first support 2 through the guide slide 2-2 and the gantry structure, facilitating the movement of the granulation rake.

[0063] This embodiment of the utility model enhances the load-bearing and stability capacity of the second support 3 by adopting a box-type sleeve structure and a lifting cylinder 3-2, thus ensuring the accuracy and reliability of hydraulic operation.

[0064] In this embodiment of the invention, the sliding of the guide key 3-3 in the guide slide 2-2 ensures the stability of vertical translation and adapts to different steel slag heights.

[0065] This embodiment of the utility model improves the efficiency of crushing force transmission, avoids deviation, and increases the equipment's processing capacity by combining the design of the rake head 4-1 with the box-shaped structure and the lifting cylinder 4-1-3.

[0066] This embodiment of the utility model improves the single slag discharge efficiency by setting baffles 4-1-6, and can process large batches of steel slag more efficiently.

[0067] This embodiment of the utility model enhances the horizontal movement capability of the granulation rake by cooperating with the rack 4-1-7 and the gear, allowing for flexible adjustment of the rake head position and improving work efficiency.

[0068] This embodiment of the invention can rapidly cool hot slag through the spray device 4-1-8, improving safety and accelerating the cooling process, thereby increasing the overall processing speed.

[0069] This embodiment of the invention designs the drill rod 4-1-4 and the tooth tip 4-1-5 as a hollow structure, which reduces weight and facilitates water cooling of the drill rod 4-1-4 and the tooth tip 4-1-5. This ensures that the drill rod 4-1-4 and the tooth tip 4-1-5 are stable and wear-resistant at high temperatures, thus increasing their service life.

[0070] This invention provides an integrated solution for steel slag processing equipment, enabling the metallurgical slag granulation machine to be better integrated into the overall steel slag processing flow. Compared with traditional equipment, it offers higher cost-effectiveness and stronger processing capacity. These beneficial effects collectively provide a more efficient, stable, and cost-optimized solution for metallurgical slag granulation machinery.

[0071] In the description of the embodiments of this utility model, it should be noted that the terms "upper," "lower," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are used only for the convenience of describing the utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model. Furthermore, the terms "first," "second," or "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0072] Unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" in this utility model embodiment should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integrated connections; similarly, they can refer to mechanical connections, electrical connections, or direct connections, or indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0073] Although the present invention has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of the invention. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A rake-type metallurgical slag granulator, characterized in that, The granulator includes a trolley (1), a first support (2), a second support (3), and a granulating rake (4); The first support (2) is fixedly installed on the trolley (1); The second support (3) is disposed on the first support (2) and forms a vertically translating sliding pair with the first support (2); The granulating rake (4) includes a rake head (4-1), a rake rod (4-2), and a roller (4-3). One end of the rake rod (4-2) is perpendicularly connected to the middle part of the rake head (4-1) in the length direction, and the other end passes through the interior of the second support (3) to form a horizontally movable pair with the second support (3). The rollers (4-3) are located on both sides of the rake head (4-1) along its length and are hinged to the rake head (4-1).

2. The rake-type metallurgical slag granulator according to claim 1, characterized in that, The first support (2) includes: a first support body (2-1) and a guide slide (2-2); The first support body (2-1) includes: two symmetrically arranged side plates (2-1-1) and a connecting plate (2-1-2), wherein the connecting plate (2-1-2) is disposed on the top of the two side plates (2-1-1) and forms a gantry structure with the side plates (2-1-1); The guide slide (2-2) is symmetrically arranged on the inner side of the side plate (2-1-1).

3. The rake-type metallurgical slag granulator according to claim 2, characterized in that, The second support (3) includes: a second support body (3-1), a lifting cylinder (3-2), a guide key (3-3), and a support roller (3-4); The second support body (3-1) includes a top plate (3-1-1), a bottom plate (3-1-2), and two side plates (3-1-3). The top plate (3-1-1), the bottom plate (3-1-2), and the two side plates (3-1-3) form a hollow box-type sleeve structure. The rollers (3-4) are located inside the second support body (3-1) and are symmetrically arranged on the two side plates (3-1-3) near the bottom plate (3-1-2) to support the rake rod (4-2); The guide key (3-3) is located on the outside of the second support body (3-1) and is fixedly connected to the outside of the two side plates (3-1-3); The lifting cylinder (3-2) is located at the bottom of the second support body (3-1), its cylinder barrel is fixedly connected to the trolley (1), and its cylinder rod is fixedly connected to the base plate (3-1-2).

4. A rake-type metallurgical slag granulator according to claim 3, characterized in that, The guide key (3-3) of the second support (3) is located in the guide slide (2-2) of the first support (2), and the second support (3) and the first support (2) form a sliding pair that moves vertically.

5. A rake-type metallurgical slag granulator according to claim 1, characterized in that, The rake head (4-1) includes: a main beam (4-1-1), a secondary beam (4-1-2), a lifting cylinder (4-1-3), several chisels (4-1-4), and several tooth tips (4-1-5); The main beam (4-1-1) is a box-shaped structure with a groove on its upper end face, and the secondary beam (4-1-2) is located in the groove; the bottom of the groove is provided with several holes; One end of the drill rod (4-1-4) passes through the hole and is connected to the bottom of the sub-beam (4-1-2), and the other end of the drill rod (4-1-4) is connected to the tooth tip (4-1-5); both the drill rod (4-1-4) and the tooth tip (4-1-5) are hollow structures; The cylinder barrel of the lifting cylinder (4-1-3) is connected to the top of the main beam (4-1-1), and the cylinder rod of the lifting cylinder (4-1-3) is connected to the top of the secondary beam (4-1-2). The secondary beam (4-1-2) has translational degrees of freedom in the vertical direction relative to the main beam (4-1-1).

6. A rake-type metallurgical slag granulator according to claim 5, characterized in that, The rake head (4-1) further includes a baffle plate (4-1-6), which is symmetrically arranged on both sides of the chisel (4-1-4); The distance between the bottom of the baffle plate (4-1-6) and the apex of the tooth tip (4-1-5) is approximately 300mm to 500mm.

7. A rake-type metallurgical slag granulator according to claim 5, characterized in that, The granulating rake (4) further includes: a toothed rack (4-1-7) disposed on the rake rod (4-2); The second support (3) is provided with a gear that matches the rack (4-1-7). The rack (4-1-7) and the gear cooperate to realize the horizontal translational freedom of the granulating rake (4).

8. A rake-type metallurgical slag granulator according to claim 5, characterized in that, The rake head (4-1) further includes a spraying device (4-1-8), which is located at the bottom of the main beam (4-1-1) and alternately arranged with the chisel (4-1-4).

9. A rake-type metallurgical slag granulator according to claim 5, characterized in that, The number of the drill rods (4-1-4) is at least 5.

10. A steel slag treatment equipment, characterized in that, The equipment includes a rake-type metallurgical slag granulator as described in any one of claims 1-9.

Images