Efficient pretreatment device for slag

Abstract

The utility model discloses an efficient slag pretreatment device which comprises a machine frame and a drying pipe, a preliminary smashing mechanism is installed on the machine frame, a conveyor is installed on the machine frame, the output end of the preliminary smashing mechanism is located above the conveyor, and a blowing drying mechanism used for drying materials on the conveyor in a blowing mode is installed on the machine frame. A smashing box is installed on the machine frame, and a feeding port is formed in the top of the smashing box. Through the arrangement of the preliminary crushing mechanism, before slag is crushed into slag fragments required by grinding, the slag fragments are crushed into larger fragments, and then when the slag fragments are conveyed by the conveyor, the slag fragments can be preliminarily dried by the blowing drying mechanism; the primarily dried slag blocks are crushed into slag fragments required by grinding by the crushing box after being dried, and in the crushing process, the slag fragments can be dried again under the influence of hot air blown out by the drying pipe and the temperature of the temperature adjusting shell in contact with the slag blocks, so that the aim of efficiently removing moisture in the slag is fulfilled.

Description

Technical Field

[0001] The utility model relates to the technical field of slag pretreatment, in particular to a high-efficiency slag pretreatment device. Background Technique

[0002] Slag is a kind of waste residue discharged from the blast furnace during the smelting of pig iron. It is an easily fusible mixture that can be processed by a variety of processes and formed into high-value materials with a variety of uses. In industrial production, slag plays an important role, especially as a high-quality raw material for the production of cement. In order to facilitate the processing and utilization of slag, slag often needs to be first crushed and pretreated and then ground into utilizable slag powder.

[0003] In the existing slag pretreatment device, after the slag is crushed, due to the presence of a certain amount of moisture in the slag fragments, the slag fragments are prone to stick together after crushing, affecting the subsequent grinding work. Even if there is a drying mechanism, it only dries the surface of the slag blocks, and the water removal efficiency is poor. Content of the Utility Model

[0004] Based on this, in view of the above technical problems, it is necessary to provide a high-efficiency slag pretreatment device.

[0005] To achieve the above object, the utility model provides a high-efficiency slag pretreatment device, which includes a frame and a drying pipe. A preliminary crushing mechanism is installed on the frame, a conveyor is installed on the frame, the output end of the preliminary crushing mechanism is located above the conveyor, a blowing and drying mechanism for drying the material on the conveyor is installed on the frame, a crushing box is installed on the frame, a feeding port is provided at the top of the crushing box, the output end of the conveyor is located above the feeding port, a temperature-adjusting shell is installed in the crushing box, a rotating block is rotatably installed in the crushing box, the rotating block is in clearance fit with the temperature-adjusting shell, a rotary driving device is installed on the crushing box, the output end of the rotary driving device is in transmission connection with the rotating block, a discharge port is provided at the bottom of the crushing box, the drying pipe is located inside the discharge port, and a number of inclined upward exhaust holes are provided on the drying pipe. A water inlet pipe and a water outlet pipe are installed on the temperature-adjusting shell, and the input end of the water inlet pipe is communicated with a heat medium source.

[0006] Preferably, the blowing and drying mechanism includes a number of upper spray pipes and lower spray pipes. The upper spray pipes and the lower spray pipes are both installed on the frame. A number of ventilation holes are provided on the conveyor. The input ends of the upper spray pipes and the lower spray pipes are both communicated with a heat medium source. The lower spray pipes are located inside the conveyor, and the output ends of the upper spray pipes are located above the conveyor.

[0007] Preferably, a linear actuator is installed on the frame, the output end of the linear actuator is installed with an L-shaped plate, and one end of the L-shaped plate is in clearance fit with the upper surface of the conveyor.

[0008] Preferably, triangular push blocks are installed on both sides of the L-shaped plate.

[0009] Preferably, a guiding shell is installed on the frame. The guiding shell is located inside the conveyor, and a plurality of lower spray pipes are all located inside the guiding shell.

[0010] Preferably, a breathable blocking net is installed on the drying pipe.

[0011] Preferably, a guiding frame is installed on the crushing box, and the rotary driving device is located inside the guiding frame.

[0012] Compared with the prior art, the technical solution has at least one of the following beneficial effects:

[0013] Through the setting of the preliminary crushing mechanism, before the slag is crushed into slag fragments required for grinding, it is first crushed into larger fragments, and then when it is conveyed by the conveyor, it can be preliminarily dried by the blowing and drying mechanism;

[0014] After the preliminarily dried slag blocks are dried, they are crushed into slag fragments required for grinding by the crushing box. During the crushing process, affected by the hot air blown out by the drying pipe and the temperature of the temperature regulating shell in contact with the slag blocks, the slag fragments can be dried again, so as to achieve the purpose of efficiently removing the moisture in the slag. Description of the Drawings

[0015] Figure 1 It is a front view cross-sectional view of an embodiment of the present utility model;

[0016] Figure 2 It is a rear view of an embodiment of the present utility model;

[0017] Figure 3 It is an enlarged view of part A in an embodiment of the present utility model Figure 1 ;

[0018] In the figure, 1, frame; 2, conveyor; 3, crushing box; 4, feed inlet; 5, temperature regulating shell; 6, rotating block; 7, rotary driving device; 8, discharge outlet; 9, drying pipe; 10, exhaust hole; 11, water inlet pipe; 12, water outlet pipe; 13, upper spray pipe; 14, lower spray pipe; 15, linear actuator; 16, L-shaped plate; 17, triangular push block; 18, guiding shell; 19, breathable blocking net; 20, guiding frame. Detailed Embodiment

[0019] In order to make the above objects, features and advantages of the present utility model more obvious and understandable, the specific embodiments of the present utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present utility model. However, the present utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0020] Please refer to Figures 1 to 3 , an embodiment of the present application provides a slag high-efficiency pretreatment device, including a frame 1 and a drying pipe 9. The input end of the drying pipe 9 is communicated with a hot gas source, and the hot gas source can be the waste heat exhaust gas of a steel mill. A preliminary crushing mechanism is installed on the frame 1, and the preliminary crushing mechanism can be a crusher with two symmetrically arranged crushing rollers in the prior art. A conveyor 2 is installed on the frame 1, and the conveyor 2 can be a belt conveyor. The output end of the preliminary crushing mechanism is located above the conveyor 2. A blowing and drying mechanism for drying the materials on the conveyor 2 is installed on the frame 1. A crushing box 3 is installed on the frame 1. A feed inlet 4 is provided at the top of the crushing box 3. The output end of the conveyor 2 is located above the feed inlet 4. A temperature regulating shell 5 is installed in the crushing box 3. A rotating block 6 is rotatably installed in the crushing box 3, and the rotating block 6 is in clearance fit with the temperature regulating shell 5. A rotation driving device 7 is installed on the crushing box 3, and the rotation driving device 7 can be a motor. The output end of the rotation driving device 7 is in transmission connection with the rotating block 6. An outlet 8 is provided at the bottom of the crushing box 3. The drying pipe 9 is located inside the outlet 8. A plurality of upwardly inclined exhaust holes 10 are provided on the drying pipe 9. The drying pipe 9 is communicated with the outside, and the input end of the drying pipe 9 is communicated with a hot gas source, and the hot gas source can be the waste heat exhaust gas of a steel mill. A water inlet pipe 11 and a water outlet pipe 12 are installed on the temperature regulating shell 5. The input end of the water inlet pipe 11 is communicated with a heat medium source, and the heat medium source can be hot water.

[0021] In this embodiment, before the slag is crushed into the required slag fragments, the preliminary crushing mechanism first crushes the slag into larger pieces of slag and transports it by the conveyor 2. During transportation, the blowing and drying mechanism can perform preliminary drying treatment on the surface of the larger pieces of slag. Then, the larger pieces of slag fall into the crushing box 3 through the feed inlet 4 and are crushed into the required slag fragments. During the crushing process, the rotation driving device 7 drives the rotating block 6 to rotate, so that the rotating block 6 and the temperature regulating shell 5 cooperate to crush the larger pieces of slag. During crushing, the temperature regulating shell 5 is filled with hot water entering from the water inlet pipe 11, and the drying pipe 9 continuously outputs hot gas upward at the outlet 8 through the exhaust holes 10, so that the moisture in the slag fragments can be blown away from the gap between the rotating block 6 and the temperature regulating shell 5, thereby achieving the purpose of efficiently removing water from the slag fragments; and the high-temperature temperature regulating shell 5 makes it difficult for the slag powder to adhere to it; and when the rotating block 6 and the temperature regulating shell 5 have been crushing for a long time and generate heat due to friction, the hot water can be discharged from the water outlet pipe 11 to reduce the heat and avoid damage.

[0022] In some embodiments, to facilitate the drying of larger slag fragments, a blowing and drying mechanism is provided, which includes a number of upper spray pipes 13 and lower spray pipes 14. The upper spray pipes 13 and the lower spray pipes 14 are both installed on the frame 1. The conveyor 2 is provided with a number of ventilation holes, and the ventilation holes should be smaller than the diameter of the larger slag fragments, so that the slag blocks will not fall through the ventilation holes. The input ends of the upper spray pipes 13 and the lower spray pipes 14 are both connected to a hot gas source, and the hot gas source can be the waste heat exhaust gas of a steel mill. The lower spray pipes 14 are located inside the conveyor 2, and the output ends of the upper spray pipes 13 are located above the conveyor 2. Thus, the hot air blown out by the upper spray pipes 13 cooperates with the hot air blown out by the lower spray pipes 14 through the ventilation holes to preliminarily dry the larger slag blocks.

[0023] In some embodiments, to further improve the drying efficiency of larger slag blocks, a linear actuator 15 is installed on the frame 1. The linear actuator 15 can be an electric slide table. The output end of the linear actuator 15 is installed with an L-shaped plate 16. The thickness of the L-shaped plate 16 should be smaller than the size of the larger slag blocks, so that the larger slag blocks will not be continuously pushed by the L-shaped plate 16 but will cross over the L-shaped plate 16. One end of the L-shaped plate 16 has a clearance fit with the upper surface of the conveyor 2. The L-shaped plate 16 can make the larger slag blocks on the conveyor 2 flip, further improving the blowing and drying effect.

[0024] In some embodiments, to facilitate the larger slag blocks to cross over the L-shaped plate 16, triangular push blocks 17 are installed on both sides of the L-shaped plate 16. Thus, after the larger slag blocks pass through the inclined surfaces of the triangular push blocks 17, they can be lifted and flipped by the L-shaped plate 16.

[0025] In some embodiments, to enable the hot gas ejected by the lower spray pipes 14 to better pass through the ventilation holes on the conveyor 2 and blow towards the larger slag blocks, a guiding shell 18 is installed on the frame 1. The guiding shell 18 is located inside the conveyor 2, and a number of lower spray pipes 14 are all located inside the guiding shell 18. The guiding shell 18 plays a certain guiding role in the hot gas blown out by the lower spray pipes 14.

[0026] In some embodiments, to prevent the slag fragments from falling into the exhaust holes 10 after being crushed, a breathable blocking net 19 is installed on the drying pipe 9.

[0027] In some embodiments, to protect the rotary drive device 7, a guiding frame 20 is installed on the crushing box 3. The rotary drive device 7 is located inside the guiding frame 20.

[0028] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0029] The above embodiments only illustrate several implementation manners of the present utility model. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all fall within the protection scope of the present utility model. Therefore, the protection scope of the present utility model patent shall be subject to the appended claims.

[0030] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the present utility model.

[0031] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0032] In the present utility model, unless otherwise clearly specified and defined, the terms "mounted", "connected", "coupled", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

Claims

1. An efficient pretreatment device for slag, comprising a frame (1) and a drying pipe (9), characterized in that, A preliminary crushing mechanism is installed on the frame (1). A conveyor (2) is installed on the frame (1). The output end of the preliminary crushing mechanism is located above the conveyor (2). A blowing and drying mechanism for drying the materials on the conveyor (2) is installed on the frame (1). A crushing box (3) is installed on the frame (1). The top of the crushing box (3) is provided with a feed inlet (4). The output end of the conveyor (2) is located above the feed inlet (4). A temperature regulating shell (5) is installed in the crushing box (3). A rotating block (6) is rotatably installed in the crushing box (3). The rotating block (6) is in clearance fit with the temperature regulating shell (5). A rotary drive device (7) is installed on the crushing box (3). The output end of the rotary drive device (7) is in transmission connection with the rotating block (6). The bottom of the crushing box (3) is provided with a discharge outlet (8). A drying pipe (9) is located inside the discharge outlet (8). A number of inclined upward exhaust holes (10) are provided on the drying pipe (9). A water inlet pipe (11) and a water outlet pipe (12) are installed on the temperature regulating shell (5). The input end of the water inlet pipe (11) is communicated with a heat medium source.

2. The slag efficient pretreatment device according to claim 1, wherein The blowing and drying mechanism includes a number of upper spray pipes (13) and lower spray pipes (14). Both the upper spray pipes (13) and the lower spray pipes (14) are installed on the frame (1). A number of ventilation holes are provided on the conveyor (2). The input ends of both the upper spray pipes (13) and the lower spray pipes (14) are communicated with a hot gas source. The lower spray pipes (14) are located inside the conveyor (2). The output ends of the upper spray pipes (13) are located above the conveyor (2).

3. The slag efficient pretreatment device according to claim 1, characterized in that, A linear actuator (15) is installed on the frame (1). The output end of the linear actuator (15) is installed with an L-shaped plate (16). One end of the L-shaped plate (16) is in clearance fit with the upper surface of the conveyor (2).

4. The slag high-efficiency pretreatment device according to claim 3, characterized in that, Triangular push blocks (17) are installed on both sides of the L-shaped plate (16).

5. The slag efficient pretreatment device according to claim 1, wherein A guide shell (18) is installed on the frame (1). The guide shell (18) is located inside the conveyor (2). A number of lower spray pipes (14) are all located inside the guide shell (18).

6. The high-efficiency slag pretreatment device according to claim 1, wherein, A breathable blocking net (19) is installed on the drying pipe (9).

7. The slag efficient pretreatment device according to claim 1, wherein A guide frame (20) is installed on the crushing box (3). The rotary drive device (7) is located inside the guide frame (20).

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