Ironmaking slag separation and recovery device

Abstract

The utility model discloses a kind of ironmaking water slag separation and recovery device, including shell, the inside rotation of the shell is connected with separation cylinder, the outside of the separation cylinder is equipped with screen, the outside of the shell is equipped with separation feeding mechanism, the utility model relates to water slag separation and recovery device technical field;The ironmaking water slag separation and recovery device, by gear A drive gear ring connection separation cylinder rotates in the inside of shell, so that water slag overturns in the inside of separation cylinder, screen on the outside of separation cylinder carries out screening to water slag, to obtain the water slag of composite particle size recovery demand, screen can separate water and water slag, accelerate the dehydration speed of water slag, in the process of separating water slag and water, the high-speed water flow of the spray head of oblique arrangement washes water slag in the inside of separation cylinder, so that dust and other substances attached to the outside of water slag are separated, to obtain higher quality water slag, the high-speed water flow plays the cleaning effect to screen, simultaneously, prevent small particle material from plugging screen.

Description

Technical Field

[0001] This utility model relates to the technical field of slag separation and recycling devices, specifically an ironmaking slag separation and recycling device. Background Technology

[0002] Iron slag is a byproduct of blast furnace ironmaking. At high temperatures, iron ore is reduced to molten iron, while gangue and coke ash in the ore react with flux to form a silicate melt with a low melting point and low density. This melt floats on top of the molten iron and is discharged through a dedicated slag outlet. This high-temperature molten slag is then rapidly cooled by a high-pressure water jet, forming granular slag. The core purpose of separation and recycling is to transform it into a high-value commodity, achieving a circular economy.

[0003] In the process of separating blast furnace slag, the molten iron in the blast furnace is first discharged, and the slag suspended on the top layer of molten iron is discharged from the slag discharge port on the top side of the blast furnace. It is then water-quenched to form water slag. During the water quenching process, a small amount of molten iron is trapped in the water slag, which forms small iron particles after cooling. At the same time, dust and sludge will adhere to the outside. After the slag is water-quenched, the slag-water mixture flows directly into a huge concrete settling tank. The coarse particles of water slag settle naturally at the bottom. After the water slag has settled to a certain amount, it is scooped out using a grab crane or excavator and transported to the stockpile for natural drying. The dewatering cycle of water slag is long, which can easily cause water pollution. At the same time, it is inconvenient to sort water slag with standard particle size.

[0004] Therefore, this utility model provides an ironmaking slag separation and recycling device to solve the above problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides an ironmaking slag separation and recycling device, which solves the aforementioned problems.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: an iron slag separation and recycling device, comprising a shell, a separation cylinder rotatably connected inside the shell, a screen installed outside the separation cylinder, and a separation feeding mechanism installed outside the shell; The separating feeding mechanism includes a gear ring fixedly connected to one end of the separating cylinder, a servo motor fixedly connected to one side of the outer shell, a gear A fixedly connected to the output end of the servo motor, the gear ring meshing with the gear A, a shaftless auger fixedly connected to the inner wall of the separating cylinder, a guide plate fixedly connected to the outer side of the outer shell, and a nozzle fixedly connected to the inner wall of the outer shell. An anti-blocking mechanism is installed on the outside of the outer casing.

[0007] Preferably, the anti-blocking mechanism includes a cavity connecting plate fixedly connected to the outside of the housing, a connecting shaft rotatably connected inside the cavity connecting plate, a gear B fixedly connected to one end of the connecting shaft, the gear B meshing with the gear ring, and a steel brush fixedly connected to the outer end of the connecting shaft.

[0008] Preferably, a drain shell is fixedly connected to the bottom of the outer shell.

[0009] Preferably, a filter plate is installed inside the drain shell, and a filter screen is installed inside the filter plate.

[0010] Preferably, a drain pipe is fixedly connected to the bottom of the drain shell.

[0011] Preferably, the input end of the housing has a sealed structure and a guide pipe is fixedly connected to the outside.

[0012] Preferably, a discharge plate is fixedly connected to the outer side of the output end of the housing. Beneficial effects

[0013] This utility model provides a device for separating and recovering slag from ironmaking. Compared with the prior art, it has the following advantages: This iron slag separation and recycling device uses gear A to drive a gear-ring connected separation cylinder to rotate inside the outer shell, causing the slag to tumble inside. A screen on the outside of the separation cylinder screens the slag to obtain slag that meets the particle size recovery requirements. The screen can separate water and slag, accelerating the dewatering speed of the slag. During the separation process, a high-speed water jet from an inclined nozzle washes over the slag inside the separation cylinder, causing dust and other substances attached to the outside of the slag to detach, thus obtaining high-quality slag. The high-speed water jet cleans the screen while preventing small particles from clogging it and affecting the separation efficiency of the separation cylinder. A shaftless auger discharges the separated and cleaned slag from the output end of the outer shell for recycling, while small-diameter slag and other substances fall into the drain shell. Attached Figure Description

[0014] Figure 1 This is a perspective view of the external structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of the outer shell of this utility model; Figure 3 This is a partial structural schematic diagram of the separating feeding mechanism of this utility model; Figure 4 This is a side view of the present invention.

[0015] In the diagram: 1. Outer shell; 2. Separating cylinder; 3. Screen; 4. Separating and feeding mechanism; 401. Gear ring; 402. Servo motor; 403. Gear A; 404. Shaftless auger; 405. Guide plate; 406. Nozzle; 5. Anti-clogging mechanism; 501. Cavity connecting plate; 502. Connecting shaft; 503. Gear B; 504. Steel brush; 6. Drain shell; 7. Filter plate; 8. Drain pipe; 9. Guide pipe; 10. Unloading plate. Detailed Implementation

[0016] 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. Example 1:

[0017] Please see Figure 1-4 A slag separation and recycling device for ironmaking includes an outer shell 1, a separation cylinder 2 rotatably connected inside the outer shell 1, a screen 3 installed outside the separation cylinder 2, and a separation feeding mechanism 4 installed outside the outer shell 1. The separating feeding mechanism 4 includes a gear ring 401 fixedly connected to one end of the separating cylinder 2, a servo motor 402 fixedly connected to one side of the outer shell 1, a gear A403 fixedly connected to the output end of the servo motor 402, the gear A403 being installed inside the outer shell 1, the gear ring 401 meshing with the gear A403, a shaftless auger 404 fixedly connected to the inner wall of the separating cylinder 2, a guide plate 405 fixedly connected to the outer side of the outer shell 1, and a nozzle 406 fixedly connected to the inner wall of the outer shell 1. The nozzle 406 is provided in several parts and is set at a 45° angle. An anti-blocking mechanism 5 is installed on the outside of the outer casing 1.

[0018] The anti-blocking mechanism 5 includes a cavity connecting plate 501 fixedly connected to the outside of the housing 1. The housing 1 is connected to the cavity connecting plate 501. A connecting shaft 502 is rotatably connected inside the cavity connecting plate 501. A gear B503 is fixedly connected to one end of the connecting shaft 502. The gear B503 is installed inside the housing 1 and meshes with the gear ring 401. A steel brush 504 is fixedly connected to the outer end of the connecting shaft 502.

[0019] A discharge plate 10 is fixedly connected to the outer side of the output end of the housing 1.

[0020] In this embodiment, during the discharge of slag from the blast furnace, a high-speed water flow is used for preliminary water quenching, causing the slag to cool rapidly and become granular. The mixture of slag and water is discharged into the separation cylinder 2 installed inside the outer shell 1 through the guide pipe 9. Water and small-diameter slag particles fall from the screen 3 into the interior of the outer shell 1. At this time, the servo motor 402 drives the gear A403 fixed at its output end to rotate inside the outer shell 1. The rotating gear A403 drives the separation cylinder 2 to rotate inside the outer shell 1, thereby causing the slag inside the separation cylinder 2 to tumble. During this process, small-diameter slag particles leak out from the screen 3 again. During the separation of slag and water, an external pipe pours water into the guide plate 405. At the same time, water is sprayed from multiple nozzles 406. Since the nozzles 406 are set at a 45° angle, the obliquely sprayed water is sprayed. On the outside of the screen 3, some water falls onto the outside of the water slag inside the separation cylinder 2. The sprayed water has a cleaning effect on the surface of both the screen 3 and the water slag. It can clean the dust and other substances attached to the outside of the water slag while preventing small particles from clogging the screen 3 and avoiding affecting the separation effect of water slag and water. During the rotation of the gear ring 401, the gear ring 401 drives the connecting shaft 502 connected to the gear B503 to rotate inside the cavity connecting plate 501, thereby causing the steel brush 504 on the outside of the connecting shaft 502 to rotate. The steel brush 504 further cleans the screen 3, and the generated wastewater falls into the drain shell 6. As the separation cylinder 2 rotates, the shaftless auger 404 inside it drives the water slag to move towards the output end of the outer shell 1 and is discharged from the discharge plate 10. The discharged water slag can be recycled using a collection device. Example 2:

[0021] Please see Figure 1-4 This embodiment provides a technical solution for an ironmaking slag separation and recycling device based on embodiment one: the bottom of the outer shell 1 is fixedly connected to a drain shell 6 and they are connected in communication. The cross-section of the drain shell 6 is an isosceles trapezoid.

[0022] The drain shell 6 has a filter plate 7 installed inside, and the filter plate 7 has a filter screen installed inside. The pore size of the filter screen is smaller than that of the screen 3.

[0023] A drain pipe 8 is fixedly connected to the bottom of the drain shell 6.

[0024] The input end of the outer casing 1 is a sealed structure and a guide tube 9 is fixedly connected to the outside.

[0025] In this embodiment, after the water sludge and water are separated by the screen 3, the small particles fall onto the filter plate 7 inside the drain shell 6 along with the water. At this time, the filter screen further filters the small particles to prevent them from clogging the drain pipe 8. The sewage is discharged from the drain pipe 8, and the discharged sewage can be recycled after impurity removal and filtration, reducing water waste. Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0026] Working principle: After the blast furnace discharges molten iron from its lower tap hole, the slag is discharged from the slag outlet and quenched using a high-speed water flow, causing the slag to become granular. A guide pipe 9 installed on the side of the outer shell 1 is connected to the water quenching device. The mixture of slag and water enters the separation cylinder 2 inside the outer shell 1. Most of the water leaks out through the screen 3. An external water pipe is installed on the outside of the guide plate 405, through which water flows. The water is sprayed from the inclined nozzle 406, spraying onto the outside of the screen 3. The water flow cleans the screen 3, preventing small particles from clogging it and ensuring effective separation of slag and water. Simultaneously, some water passes through the screen 3 and falls onto the outside of the slag. The water that has passed through again washes the slag, causing dust and small particles on the outside of the slag to fall off. During the spraying process on the screen 3, the servo motor 402 drives the gear A403 to rotate inside the outer casing 1. The rotating gear A403 drives the separation cylinder 2 connected to the gear ring 401 to rotate inside the outer casing 1. The rotating separation cylinder 2 screens the slag again, causing small particles of slag, impurities, and water to fall into the interior of the outer casing 1. At the same time, the rotating separation cylinder 2 drives the shaftless auger 404 fixed on its inner wall to rotate, causing the slag to be output to the outer casing 1. The end moves and is discharged from the discharge plate 10. At the same time, the rotating gear ring 401 drives the gear B503 to rotate inside the housing 1, thereby driving the connecting shaft 502 fixed to the gear B503 to rotate inside the cavity connecting plate 501. At this time, the connecting shaft 502 drives the steel brush 504 on its outer side to rotate. The steel brush 504 further cleans the screen 3. The steel brush 504 can clean the solid particles stuck in the screen holes of the screen 3. Water and small-diameter materials fall into the drain shell 6. At this time, the filter screen installed inside the filter plate 7 filters the small-diameter materials again. Since the aperture of the filter screen is smaller than the aperture of the screen 3, part of the material is filtered out. Small particles fall onto the top of the filter plate 7. These small particles contain a large amount of water residue, which can be recycled and reused. After the equipment has been running for a certain period of time, it is shut down and the drain shell 6 is removed from the bottom of the outer shell 1. The filter plate 7 inside the drain shell 6 is then removed, and the small particles of water residue and impurities on the top of the filter plate 7 are recycled or cleaned. The filter plate 7 prevents small particles from clogging the drain pipe 8. Wastewater is discharged from the drain pipe 8. A filter tank or other equipment can be installed at the output end of the drain pipe 8 to filter the wastewater again. The filtered wastewater can be recycled, reducing the waste of water resources.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for separating and recovering slag from ironmaking, comprising a shell (1), characterized in that: The separation cylinder (2) is rotatably connected inside the outer shell (1), a screen (3) is installed on the outside of the separation cylinder (2), and a separation feeding mechanism (4) is installed on the outside of the outer shell (1). The separating feeding mechanism (4) includes a gear ring (401) fixedly connected to one end of the separating cylinder (2), a servo motor (402) fixedly connected to one side of the outer shell (1), a gear A (403) fixedly connected to the output end of the servo motor (402), the gear ring (401) meshing with the gear A (403), a shaftless auger (404) fixedly connected to the inner wall of the separating cylinder (2), a guide plate (405) fixedly connected to the outer side of the outer shell (1), and a nozzle (406) fixedly connected to the inner wall of the outer shell (1). An anti-blocking mechanism (5) is installed on the outside of the outer casing (1).

2. The ironmaking slag separation and recovery device according to claim 1, characterized in that: The anti-blocking mechanism (5) includes a cavity connecting plate (501) fixedly connected to the outside of the outer shell (1). A connecting shaft (502) is rotatably connected inside the cavity connecting plate (501). A gear B (503) is fixedly connected to one end of the connecting shaft (502). The gear B (503) meshes with the gear ring (401). A steel brush (504) is fixedly connected to the outer end of the connecting shaft (502).

3. The ironmaking slag separation and recovery device according to claim 1, characterized in that: A drain shell (6) is fixedly connected to the bottom of the outer shell (1).

4. The ironmaking slag separation and recovery device according to claim 3, characterized in that: The drain shell (6) is equipped with a filter plate (7), and the filter plate (7) is equipped with a filter screen.

5. The ironmaking slag separation and recovery device according to claim 3, characterized in that: The bottom of the drain shell (6) is fixedly connected to a drain pipe (8).

6. The ironmaking slag separation and recovery device according to claim 1, characterized in that: The input end of the outer casing (1) is sealed and a guide pipe (9) is fixedly connected to the outside.

7. The ironmaking slag separation and recovery device according to claim 1, characterized in that: A discharge plate (10) is fixedly connected to the outer side of the output end of the outer casing (1).

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