Submerged arc furnace slag screening mechanism

Abstract

The utility model relates to the technical field of slag screening, in particular to a submerged arc furnace slag screening mechanism which not only can screen the granularity of submerged arc furnace slag, but also can screen out residual metal in the submerged arc furnace slag for recycling, avoids waste of the residual metal in the submerged arc furnace slag, and is convenient to use and high in economical efficiency and practicability. Comprising a bottom plate, a support, a collecting box and a sealing cover, the collecting box is fixedly installed at the upper end of the bottom plate through the support, a cavity is formed in the collecting box, a taking and placing opening communicated with the cavity is formed in the collecting box, and the sealing cover is installed on the outer side of the taking and placing opening; the device further comprises a screening barrel, a moving device, a stirring device and a magnetic adsorption device, the moving device is installed on the bottom plate, the screening barrel is installed on the moving device, the moving device is used for moving the screening barrel left and right, and a cavity is formed in the screening barrel.

Description

Technical Field

[0001] The utility model relates to the technical field of slag screening, in particular to a screening mechanism for mineral heat slag. Background Art

[0002] Submerged arc furnace slag refers to the slag produced during the smelting process of an ore-heat furnace. An ore-heat furnace is an electric furnace mainly used to smelt metals. During the smelting process of steel, the slag of the ore-heat furnace will be discharged, and these slags have a high utilization value. Submerged arc furnace slag can be used to make raw materials for fertilizers, concrete, cement, etc. during the later recycling process. When using submerged arc furnace slag to produce building materials or fertilizers, submerged arc furnace slag of a certain particle size is required, so a screening mechanism is required to screen the submerged arc furnace slag to screen out the large particles of submerged arc furnace slag.

[0003] In the prior art, the high-carbon ferrochrome smelting ore-fired furnace slag recovery device with patent application number "202221796636.8" is mainly composed of a screening device with filter holes. When in use, the ore-fired furnace slag is placed in the screening mechanism, and then the ore-fired furnace slag is screened in the screening device so that large particles of ore-fired furnace slag remain in the screening mechanism. During use, it was found that in the process of smelting iron in the ore-fired furnace, the ore-fired furnace slag will also contain some unburned iron metals, which can also be separated and recycled again. However, the screening device in the above-mentioned prior art obviously cannot screen out the iron in the ore-fired furnace slag for recycling, which makes it inconvenient to use and has poor practicality. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a slag screening mechanism which can not only screen the particle size of the slag, but also screen out the residual metal in the slag for recycling, thereby avoiding the waste of the residual metal in the slag. The slag screening mechanism is easy to use and has high economy and practicality.

[0005] The utility model discloses a screening mechanism for slag from heated ore, comprising a bottom plate, a bracket, a collecting box and a sealing cover, wherein the collecting box is fixedly mounted on the upper end of the bottom plate by the bracket, a chamber is arranged in the collecting box, a taking-in and putting-out port communicating with the chamber is arranged on the collecting box, and the sealing cover is arranged on the outer side of the taking-in and putting-out port; the utility model also comprises a screening drum, a moving device, a stirring device and a magnetic adsorption device, the moving device is mounted on the bottom plate, the screening drum is mounted on the moving device, the moving device is used to move the screening drum left and right, a cavity is arranged in the screening drum, a plurality of groups of filter holes communicating with the cavity are arranged at the lower end of the screening drum, the screening drum is located above the collecting box, the lower part of the stirring device is located in the cavity of the screening drum, the stirring device has a stirring function, the magnetic adsorption device is mounted on the bottom plate, and the magnetic adsorption device has a magnetic adsorption function; when screening the slag from heated ore, the slag to be screened is firstly put into the cavity of the screening drum, and then the small particles of slag from heated ore are removed. The slag falls into the chamber of the collecting box through multiple groups of filter holes at the lower end of the screening drum cavity, and large particles of slag remain in the cavity of the screening drum. At the same time, the slag in the cavity of the screening drum can be stirred by a stirring device to promote the movement of the slag in the cavity of the screening drum and the screening efficiency of the slag on the screening drum. After the slag is screened by the screening drum, the screening drum is moved to the right side of the collecting box by a moving device, and then the slag in the chamber of the collecting box is adsorbed by the magnetic adsorption device, so that the metal of the slag is adsorbed by the magnetic adsorption device, and then the magnetic adsorption device is taken out of the collecting box, and then the metal adsorbed on the magnetic adsorption device is collected. It can not only screen the particle size of the slag, but also screen out the metal remaining in the slag for recycling, thereby avoiding the waste of residual metal in the slag. It is easy to use and highly practical.

[0006] Preferably, the moving device includes two groups of support plates, a motor A, a lead screw, a sliding plate, a slide rail and a support frame. The two groups of support plates are fixedly mounted on the base plate, the motor A is fixedly mounted on the support plates, the lead screw is rotatably mounted on the two groups of support plates, the right end of the lead screw is connected to the output end of the motor A, the sliding plate is screwed to the lead screw, the sliding plate is slid left and right on the slide rail, the slide rail is fixedly mounted on the base plate, the support frame is fixedly mounted on the upper end of the sliding plate, the screening drum is fixedly mounted on the support frame, and the stirring device is fixedly mounted on the support frame; when the screening drum is used to screen the slag from the heated ore, the screening drum is located above the collecting box, and when the magnetic adsorption device is used to adsorb the slag in the screening drum, the motor A is first turned on to rotate the lead screw, and the rotating lead screw drives the support frame to move the screening drum to the right through the sliding plate until the screening drum moves to the right side of the collecting box, thereby avoiding interference between the magnetic adsorption device and the screening drum during movement, thereby improving reliability during use.

[0007] Preferably, the stirring device includes a motor B and a rotating shaft, wherein the motor B is fixedly mounted on the upper end of the support frame, the rotating shaft is rotatably mounted on the upper part of the support frame, the upper end of the rotating shaft is connected to the output end of the motor B, and a plurality of groups of stirring blades are arranged at the lower part of the rotating shaft, and the plurality of groups of stirring blades are all located in the cavity of the screening cylinder; when the screening cylinder is used to screen the slag from the heated ore, the motor B is turned on, the motor B drives the rotating shaft to rotate, and the rotating shaft drives the plurality of groups of stirring blades to rotate, and the plurality of groups of stirring blades promote the movement of the slag from the heated ore in the cavity of the screening cylinder during the rotation process, thereby promoting the efficiency of screening and filtering of the slag from the heated ore on the screening cylinder.

[0008] Preferably, the magnetic adsorption device includes a moving mechanism, a connecting plate and multiple groups of electromagnets, the connecting plate is installed on the moving mechanism, the moving mechanism is used to move the connecting plate, and the multiple groups of electromagnets are fixedly installed on the connecting plate; when the slag in the chamber of the collection box is subjected to magnetic screening, the connecting plate drives the multiple groups of electromagnets to move into the chamber of the collection box through the moving mechanism until the multiple groups of electromagnets are located in the slag, and then the multiple groups of electromagnets are energized to make the metal in the slag adsorbed on the multiple groups of electromagnets, and then the connecting plate drives the multiple groups of electromagnets to move out of the collection box through the moving mechanism, and then the metal adsorbed on the multiple groups of electromagnets is collected; this facilitates the adsorption and recovery of metal in the slag and improves convenience.

[0009] Preferably, the moving mechanism includes a lifting mechanism, an electric slide rail, a sliding block and a fixed frame, the electric slide rail is installed on the bottom plate, the sliding block is installed on the electric slide rail, the electric slide rail is used to move the sliding block left and right, the fixed frame is installed on the sliding block, the lifting mechanism is installed on the fixed frame, and the connecting plate is installed on the lifting mechanism; when magnetic separation is performed on the slag in the collection box chamber, the sliding block is first driven by the electric slide rail to move the fixed frame to the right, and the fixed frame moves the connecting plate and multiple groups of electromagnets to the top of the collection box through the lifting mechanism, and then the connecting plate drives the multiple groups of electromagnets to descend through the lifting mechanism until the multiple groups of electromagnets descend into the slag in the collection box chamber, and then the slag in the collection box chamber is magnetically separated and adsorbed by the multiple groups of electromagnets, and then the multiple groups of electromagnets are moved out of the collection box chamber, and then the metals adsorbed on the multiple groups of electromagnets are collected; the movement of the multiple groups of electromagnets is convenient.

[0010] Preferably, the lifting mechanism includes a hydraulic cylinder, a push rod and a sliding rod, the hydraulic cylinder is fixedly installed on the upper end of the fixed frame, the push rod is slidably installed on the upper part of the fixed frame, the upper end of the push rod is connected to the output end of the hydraulic cylinder, the sliding rod is slidably installed on the fixed frame, and the connecting plate is fixedly installed on the lower ends of the sliding rod and the push rod; when magnetic separation and adsorption of the slag in the chamber of the collection box is carried out, the hydraulic cylinder is opened, and the hydraulic cylinder drives the connecting plate to drive the multiple groups of electromagnets to descend through the push rod, until the multiple groups of electromagnets descend into the slag for magnetic separation and adsorption. After the magnetic separation and adsorption is completed, the connecting plate drives the multiple groups of electromagnets to rise above the collection box, and then the metals adsorbed on the multiple groups of electromagnets are collected, which facilitates the recovery of the metals.

[0011] Preferably, it also includes a recycling box, which is located at the upper end of the bottom plate; after the multiple groups of electromagnets magnetically adsorb the slag, the multiple groups of electromagnets are moved to the top of the recycling box, and then the multiple groups of electromagnets are turned off, so that the multiple groups of electromagnets are disconnected from the power supply, and then the metals attached to the multiple groups of electromagnets automatically fall into the recycling box for collection and treatment, thereby facilitating the recycling of metals.

[0012] Compared with the prior art, the utility model has the following beneficial effects: not only can the particle size of the ore-heated furnace slag be screened, but also the residual metal in the ore-heated furnace slag can be screened out for recycling, thus avoiding the waste of the residual metal in the ore-heated furnace slag. The utility model is easy to use and has high economy and practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the axonometric structure of the utility model;

[0014] Figure 2 It is a schematic diagram of the structure of the lead screw, the sliding plate and the motor A;

[0015] Figure 3 It is a schematic diagram of the structure of motor B, support frame and screening cylinder;

[0016] Figure 4 It is a schematic diagram of the structure of the electromagnet, hydraulic cylinder and connecting plate;

[0017] Figure 5 It is a schematic diagram of the structure of the recycling box, the bottom plate and the hydraulic cylinder;

[0018] Figure 6 It is a main structural schematic diagram of the utility model;

[0019] Markings in the attached drawings: 1. Base plate; 2. Bracket; 3. Collecting box; 4. Sealing cover; 5. Screening cylinder; 6. Support plate; 7. Motor A; 8. Screw; 9. Sliding plate; 10. Slide rail; 11. Support frame; 12. Motor B; 13. Rotating shaft; 14. Connecting plate; 15. Electromagnet; 16. Electric slide rail; 17. Sliding block; 18. Fixed frame; 19. Hydraulic cylinder; 20. Push rod; 21. Sliding rod; 22. Recovery box. DETAILED DESCRIPTION

[0020] In order to facilitate the understanding of the utility model, the utility model will be described more comprehensively below with reference to the relevant drawings. The utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive. Example 1

[0021] like Figures 1 to 6 The utility model of the slag screening mechanism comprises a bottom plate 1, a bracket 2, a collecting box 3, a sealing cover 4, a screening drum 5, a moving device, a stirring device and a magnetic adsorption device. The collecting box 3 is fixedly mounted on the upper end of the bottom plate 1 through the bracket 2. A chamber is arranged in the collecting box 3. A take-in and put-out port communicating with the chamber is arranged on the collecting box 3. The sealing cover 4 is arranged on the outside of the take-in and put-out port. The moving device is arranged on the bottom plate 1. The screening drum 5 is arranged on the moving device. The moving device is used to move the screening drum 5 left and right. A cavity is arranged in the screening drum 5. A plurality of groups of filter holes communicating with the cavity are arranged at the lower end of the screening drum 5. The screening drum 5 is located above the collecting box 3. The lower part of the stirring device is located in the cavity of the screening drum 5. The stirring device has a stirring function. The magnetic adsorption device is mounted on the bottom plate 1. The magnetic adsorption device has a magnetic adsorption function. When screening the slag from the ore, firstly put the slag to be screened into the cavity of the screening drum 5, and then the small particles are removed. The ore-heat slag falls into the chamber of the collecting box 3 through the multiple groups of filter holes at the lower end of the cavity of the screening drum 5, and the large particles of ore-heat slag remain in the cavity of the screening drum 5. At the same time, the ore-heat slag in the cavity of the screening drum 5 can be stirred by a stirring device to promote the movement of the ore-heat slag in the cavity of the screening drum 5 and the screening efficiency of the ore-heat slag on the screening drum 5. After the ore-heat slag is screened by the screening drum 5, the screening drum 5 is moved to the right side of the collecting box 3 by a moving device, and then the ore-heat slag in the chamber of the collecting box 3 is adsorbed by the magnetic adsorption device, and then the magnetic adsorption device is taken out of the collecting box 3, and then the metal adsorbed on the magnetic adsorption device is collected; it can not only screen the particle size of the ore-heat slag, but also screen out the metal remaining in the ore-heat slag for recycling, thereby avoiding the waste of the residual metal in the ore-heat slag. It is easy to use and has high practicality.

[0022] like Figure 2The moving device includes two groups of support plates 6, a motor A7, a lead screw 8, a sliding plate 9, a slide rail 10 and a support frame 11. The two groups of support plates 6 are fixedly mounted on the bottom plate 1, the motor A7 is fixedly mounted on the support plate 6, the lead screw 8 is rotatably mounted on the two groups of support plates 6, the right end of the lead screw 8 is connected to the output end of the motor A7, the sliding plate 9 is screwed with the lead screw 8, the sliding plate 9 is slidably mounted on the slide rail 10, the slide rail 10 is fixedly mounted on the bottom plate 1, the support frame 11 is fixedly mounted on the upper end of the sliding plate 9, and the screening drum 5 is fixedly mounted on the support frame 11, the stirring device is fixedly mounted on the support frame 11; when the screening drum 5 is used to screen the slag, the screening drum 5 is located above the collecting box 3. When the magnetic adsorption device is used to adsorb the slag in the screening drum 5, the motor A7 is first turned on to rotate the screw 8. The rotating screw 8 drives the screening drum 5 to move to the right through the sliding plate 9 so that the support frame 11 drives the screening drum 5 to move to the right until the screening drum 5 moves to the right side of the collecting box 3, thereby avoiding interference between the magnetic adsorption device and the screening drum 5 during movement, thereby improving reliability during use.

[0023] like Figure 3 The stirring device includes a motor B12 and a rotating shaft 13. The motor B12 is fixedly installed on the upper end of the support frame 11, and the rotating shaft 13 is rotatably installed on the upper part of the support frame 11. The upper end of the rotating shaft 13 is connected to the output end of the motor B12, and a plurality of stirring plates are arranged at the lower part of the rotating shaft 13, and the plurality of stirring plates are all located in the cavity of the screening drum 5. When the screening drum 5 is used to screen the slag, the motor B12 is turned on, and the motor B12 drives the rotating shaft 13 to rotate, and the rotating shaft 13 drives the plurality of stirring plates to rotate. During the rotation process, the plurality of stirring plates promote the movement of the slag in the cavity of the screening drum 5, and promote the efficiency of screening and filtering of the slag on the screening drum 5.

[0024] like Figure 4 The magnetic screening device includes a moving mechanism, a connecting plate 14 and multiple groups of electromagnets 15, the connecting plate 14 is installed on the moving mechanism, the moving mechanism is used to move the connecting plate 14, and the multiple groups of electromagnets 15 are fixedly installed on the connecting plate 14; when the slag in the chamber of the collecting box 3 is magnetically screened, the connecting plate 14 drives the multiple groups of electromagnets 15 to move into the chamber of the collecting box 3 through the moving mechanism, until the multiple groups of electromagnets 15 are located in the slag, and then the multiple groups of electromagnets 15 are energized to make the metal in the slag adsorbed on the multiple groups of electromagnets 15, and then the connecting plate 14 drives the multiple groups of electromagnets 15 to move out of the collecting box 3 through the moving mechanism, and then the metal adsorbed on the multiple groups of electromagnets 15 is collected; this facilitates the adsorption and recovery of metals in the slag and improves convenience.

[0025] like Figure 1The moving mechanism includes a lifting mechanism, an electric slide rail 16, a sliding block 17 and a fixed frame 18. The electric slide rail 16 is installed on the bottom plate 1, the sliding block 17 is installed on the electric slide rail 16, the electric slide rail 16 is used to move the sliding block 17 left and right, the fixed frame 18 is installed on the sliding block 17, the lifting mechanism is installed on the fixed frame 18, and the connecting plate 14 is installed on the lifting mechanism; when the ore-heat slag in the chamber of the collecting box 3 is magnetically separated, the sliding block 17 is first driven by the electric slide rail 16 to move the fixed frame 18 to the right, and the fixed frame 18 is The fixed frame 18 moves the connecting plate 14 and the multiple groups of electromagnets 15 to the top of the collecting box 3 through the lifting mechanism, and then the connecting plate 14 drives the multiple groups of electromagnets 15 to descend through the lifting mechanism until the multiple groups of electromagnets 15 descend into the slag in the chamber of the collecting box 3, and then the slag in the chamber of the collecting box 3 is magnetically adsorbed by the multiple groups of electromagnets 15, and then the multiple groups of electromagnets 15 are moved out of the chamber of the collecting box 3, and then the metals adsorbed on the multiple groups of electromagnets 15 are collected; thus, the movement of the multiple groups of electromagnets 15 is facilitated.

[0026] like Figure 4 The lifting mechanism includes a hydraulic cylinder 19, a push rod 20 and a sliding rod 21. The hydraulic cylinder 19 is fixedly installed on the upper end of the fixed frame 18, and the push rod 20 is slidably installed on the upper part of the fixed frame 18. The upper end of the push rod 20 is connected to the output end of the hydraulic cylinder 19, and the sliding rod 21 is slidably installed on the fixed frame 18. The connecting plate 14 is fixedly installed on the lower ends of the sliding rod 21 and the push rod 20; when the slag in the chamber of the collecting box 3 is magnetically adsorbed, the hydraulic cylinder 19 is opened, and the hydraulic cylinder 19 drives the connecting plate 14 to drive the multiple groups of electromagnets 15 to descend through the push rod 20, until the multiple groups of electromagnets 15 descend into the slag for magnetic separation and adsorption. After the magnetic separation and adsorption are completed, the connecting plate 14 drives the multiple groups of electromagnets 15 to rise above the collecting box 3, and then the metal adsorbed on the multiple groups of electromagnets 15 can be collected, which is convenient for the recovery of the metal. Example 2

[0027] On the basis of Example 1, it also includes a recycling box 22, which is located at the upper end of the bottom plate 1; after the multiple groups of electromagnets 15 magnetically adsorb the slag, the multiple groups of electromagnets 15 are moved to the top of the recycling box 22, and then the multiple groups of electromagnets 15 are turned off, so that the multiple groups of electromagnets 15 are disconnected from the power supply, and then the metals attached to the multiple groups of electromagnets 15 automatically fall into the recycling box 22 for collection and treatment, which facilitates the recycling of metals.

[0028] It should be additionally explained that the ore-melting slag applicable to the utility model is the ore-melting slag after iron smelting.

[0029] The collecting box 3, screening drum 5, motor A7, slide rail 10, electromagnet 15, electric slide rail 16, hydraulic cylinder 19 and push rod 20 of the slag screening mechanism of the utility model are all purchased on the market, and technicians in the industry only need to install and operate them according to the accompanying instruction manual, without the need for creative labor by technicians in this field.

[0030] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A screening mechanism for ore-fired slag, comprising a base plate (1), a bracket (2), a collecting box (3) and a sealing cover (4), wherein the collecting box (3) is fixedly mounted on the upper end of the base plate (1) via the bracket (2), a chamber is arranged in the collecting box (3), a receiving and releasing opening communicating with the chamber is arranged on the collecting box (3), and the sealing cover (4) is mounted on the outer side of the receiving and releasing opening; characterized in that: It also comprises a screening drum (5), a moving device, a stirring device and a magnetic adsorption device, wherein the moving device is mounted on the bottom plate (1), the screening drum (5) is mounted on the moving device, the moving device is used to move the screening drum (5) left and right, a cavity is arranged in the screening drum (5), a plurality of groups of filter holes communicating with the cavity are arranged at the lower end of the screening drum (5), the screening drum (5) is located above the collecting box (3), the lower part of the stirring device is located in the cavity of the screening drum (5), the stirring device has a stirring function, and the magnetic adsorption device is mounted on the bottom plate (1), the magnetic adsorption device has a magnetic adsorption function; The magnetic adsorption device comprises a moving mechanism, a connecting plate (14) and a plurality of groups of electromagnets (15); the connecting plate (14) is mounted on the moving mechanism, the moving mechanism is used to move the connecting plate (14), and the plurality of groups of electromagnets (15) are fixedly mounted on the connecting plate (14); The moving mechanism comprises a lifting mechanism, an electric slide rail (16), a sliding block (17) and a fixed frame (18); the electric slide rail (16) is mounted on the base plate (1); the sliding block (17) is mounted on the electric slide rail (16); the electric slide rail (16) is used to move the sliding block (17) left and right; the fixed frame (18) is mounted on the sliding block (17); the lifting mechanism is mounted on the fixed frame (18); and the connecting plate (14) is mounted on the lifting mechanism.

2. The ore-fired slag screening mechanism according to claim 1, characterized in that: The moving device comprises two groups of support plates (6), a motor A (7), a lead screw (8), a sliding plate (9), a slide rail (10) and a support frame (11). The two groups of support plates (6) are fixedly mounted on the bottom plate (1), the motor A (7) is fixedly mounted on the support plate (6), the lead screw (8) is rotatably mounted on the two groups of support plates (6), the right end of the lead screw (8) is connected to the output end of the motor A (7), the sliding plate (9) is screwed to the lead screw (8), the sliding plate (9) is slidably mounted on the slide rail (10) left and right, the slide rail (10) is fixedly mounted on the bottom plate (1), the support frame (11) is fixedly mounted on the upper end of the sliding plate (9), the screening drum (5) is fixedly mounted on the support frame (11), and the stirring device is fixedly mounted on the support frame (11).

3. A screening mechanism for ore-fired slag according to claim 2, characterized in that: The stirring device comprises a motor B (12) and a rotating shaft (13), wherein the motor B (12) is fixedly mounted on the upper end of the support frame (11), and the rotating shaft (13) is rotatably mounted on the upper part of the support frame (11), wherein the upper end of the rotating shaft (13) is connected to the output end of the motor B (12), and the lower part of the rotating shaft (13) is provided with a plurality of groups of stirring blades, and the plurality of groups of stirring blades are all located in the cavity of the screening cylinder (5).

4. The ore-fired slag screening mechanism according to claim 1, characterized in that: The lifting mechanism comprises a hydraulic cylinder (19), a push rod (20) and a sliding rod (21); the hydraulic cylinder (19) is fixedly mounted on the upper end of a fixed frame (18); the push rod (20) is slidably mounted on the upper part of the fixed frame (18); the upper end of the push rod (20) is connected to the output end of the hydraulic cylinder (19); the sliding rod (21) is slidably mounted on the fixed frame (18); and the connecting plate (14) is fixedly mounted on the lower ends of the sliding rod (21) and the push rod (20).

5. The ore-fired slag screening mechanism according to claim 1, characterized in that: It also includes a recycling box (22), which is located at the upper end of the bottom plate (1).

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