Slag micro-powder screening device

Abstract

The utility model relates to the technical field of superfine slag powder processing equipment, in particular to a superfine slag powder screening device which comprises a smashing mechanism, a screening mechanism is arranged below the smashing mechanism, the smashing mechanism comprises a smashing bin, supports are connected to the two sides of the smashing bin, and two universal wheels are symmetrically connected to the lower portions of the two supports. The screening mechanism comprises a U-shaped plate, a screening bin is arranged above the U-shaped plate, a plurality of preformed holes are formed in one side of the screening bin, a plurality of vertically-distributed screening plates with the same number as the preformed holes are connected into the screening bin, and push plates are arranged at the ends, away from the preformed holes, above the multiple screening plates correspondingly. According to the device, whether the crushing mechanism needs to be used or not can be selected according to the overall condition of the superfine slag powder to be screened, so that when the superfine slag powder particles are used and do not need to be crushed, the crushing mechanism is moved away from the position above the screening mechanism, resources and the processing cost of the superfine slag powder are saved, and large-particle superfine slag powder remaining on the screening plate is conveniently cleaned.

Description

Technical Field

[0001] This utility model relates to the technical field of slag micronized powder processing equipment, and specifically discloses a slag micronized powder screening device. Background Technology

[0002] Slag powder is a powdery substance produced by drying and grinding waste slag generated during the smelting of pig iron in steel plants. Its full name is granulated blast furnace slag powder, commonly known as mineral powder or water slag powder. Slag powder is often used in the fields of construction, soil improvement, filling materials, and preparation of other building materials. In the production process of slag powder, screening devices are usually used to screen the slag powder to remove large particles.

[0003] Chinese patent CN221413268U discloses a multi-stage screening device for slag powder, which relates to the field of slag powder production technology. It includes a main body, a control mechanism fixedly installed on one side of the outer wall of the main body, and a vibration mechanism fixedly installed on one side of the outer wall of the main body. The vibration mechanism includes a motor. In this invention, with the cooperation of the main structure and the vibration mechanism, when the slag is poured in from the discharge port, the motor drives one crusher to rotate through the pulley and belt, and drives another crusher to rotate through the gear, crushing the slag. Then, the motor generates vibration through the eccentric block, performing multi-stage screening of the slag. Through the above structure and method, the slag to be screened can be crushed first, avoiding insufficient crushing of the slag and some large slag particles clogging the filter plate, affecting the screening effect. It can also avoid damage to the equipment by excessively large slag particles. However, when the material to be screened has moderate particle size and does not need to be crushed, when using the above screening device, in order to ensure the quality of the material, the first motor still needs to drive the crusher to rotate, increasing the power required for the operation of the device. This is not conducive to saving the cost of slag powder screening and processing. The large particles of material remaining on the filter plate in the above screening device are inconvenient to clean, which to a certain extent affects the efficiency and quality of the filter plate filtering slag powder. Therefore, in order to solve the above problems, this invention proposes a slag powder screening device. Utility Model Content

[0004] The present invention aims to provide a slag powder screening device that can select whether to use a crushing mechanism based on the overall condition of the slag powder to be screened. When the slag powder particles do not require crushing, the crushing mechanism can be moved away from the top of the screening mechanism, which helps to save resources and reduce the cost of slag powder processing. It also facilitates the cleaning of large slag powder particles remaining on the screen plate, ensures the quality of slag powder screened by the screen plate, and improves the screening efficiency of slag powder.

[0005] This utility model is achieved through the following technical solution:

[0006] A slag powder screening device includes a crushing mechanism and a screening mechanism below the crushing mechanism. The crushing mechanism includes a crushing chamber with two crushing rollers inside. One end of each crushing roller is connected to a gear, and the end of one crushing roller away from the gear is connected to a first motor. Supports are connected to both sides of the crushing chamber, and two casters are symmetrically connected to the bottom of each of the two supports. The screening mechanism includes a U-shaped plate with a screening chamber above it. One side of the screening chamber has multiple pre-drilled holes, and a blocking plate is installed inside each pre-drilled hole. Multiple screen plates, the same number as the pre-drilled holes, are vertically distributed inside the screening chamber. Push plates are installed at the ends of the multiple screen plates away from the pre-drilled holes. A support frame is connected to the side of the pre-drilled hole away from the push plate, and the two ends of the support frame away from the screening chamber are detachably connected to the two ends of the blocking plate away from the pre-drilled holes.

[0007] As a further provision of the above scheme, the upper and lower ends of the crushing chamber are respectively provided with a first feed pipe and a first discharge pipe, which facilitates the injection of large-particle slag powder raw materials to be crushed into the crushing chamber and the discharge of the crushed materials from the crushing chamber. A connecting plate is provided on the outside of the first discharge pipe, and two vertically distributed protrusions are provided on one corner of the connecting plate. A first connecting shaft is connected to one side of each of the two protrusions. The upper and lower ends of the screening chamber are respectively connected with a second feed pipe and a second discharge pipe, which facilitates the injection of the crushed material into the screening chamber and the discharge of the screened slag powder.

[0008] As a further feature of the above scheme, the second feed pipe is connected to a second connecting shaft at one corner of the facade parallel to the two convex plates. A retractable protective cover is provided on the outer side of the upper end of the second feed pipe. The two ends of the retractable protective cover are detachably connected to two sets of first and second connecting shafts located on the same side, which facilitates the disassembly and maintenance of the retractable protective cover. This can prevent the screening chamber from conflicting with the crushing chamber during the vibrating screening process, and prevent the crushed material from flying out from above the opening of the second feed pipe when it falls into the second feed pipe. This reduces material waste and ensures a clean screening environment.

[0009] As a further feature of the above scheme, both ends of the two crushing rollers pass through the two side walls of the crushing chamber and are rotatably connected to the side walls of the crushing chamber. The teeth of the two gears mesh with each other, which helps to drive the other crushing roller to rotate through the rotation of one crushing roller. The outer side of the first motor is connected to the crushing chamber through the base, which can provide support for the first motor and facilitate the installation and maintenance of the first motor.

[0010] As a further feature of the above scheme, two limiting grooves are symmetrically arranged at one end of the U-shaped plate. The two brackets are respectively connected to the two limiting grooves on the side near the bottom of the grooves, which can limit the position of the crushing mechanism and facilitate the alignment of the crushing mechanism and the screening mechanism. Two support legs are symmetrically connected on both sides of the lower part of the U-shaped plate, which can provide stable support for the components above the U-shaped plate in the screening mechanism. A controller is provided on the upper side of the U-shaped plate to facilitate the control of the operation of the first motor, the second motor and the telescopic rod in the device.

[0011] As a further feature of the above scheme, a second motor is connected to one side of the screening chamber, and an eccentric block is connected to the output end of the second motor. The second motor can drive the eccentric block to rotate, thereby causing the screening chamber and its connecting parts to vibrate and screen the slag powder. Multiple damping shock absorbers arranged in a linear array are connected to both sides of the lower part of the screening chamber, which can reduce the vibration amplitude of the screening chamber and the screen plate, reduce noise, and improve the stability of the screening mechanism. The lower ends of the damping shock absorbers are detachably connected to U-shaped plates, which can provide support for the U-shaped plates from below the damping shock absorbers.

[0012] As a further feature of the above solution, a telescopic rod is connected to the side of the push plate away from the support frame. The telescopic end of the telescopic rod passes through the side wall of the screening chamber away from the reserved hole, facilitating the extension and retraction of the telescopic rod to move the push plate. This pushes large particles remaining on the screen plate from one side of the screen plate to the support frame, making it convenient for the user to clean up large particles and ensuring the screening quality of the screen plate. A support base is connected to the outside of the telescopic rod, and the support base is connected to the crushing chamber, facilitating the installation and maintenance of the telescopic rod and the support base. The support frame is connected to the crushing chamber, facilitating the disassembly and maintenance of the support frame. A handle is connected to the side of the blocking plate away from the push plate, allowing the user to pull the blocking plate during disassembly and assembly.

[0013] The present invention has the following beneficial effects during use:

[0014] The separate design of the crushing and screening mechanisms allows the crushing mechanism to be moved away from the screening mechanism by the rolling of the casters when the slag powder particles to be screened are of moderate size and do not require crushing. This saves on the cost of using the first motor. The design of the detachable and retractable protective cover can prevent the screening chamber from colliding with the crushing chamber during the vibrating screening process, and prevent the crushed material from flying out from the top of the second feed pipe when it falls into the second feed pipe. This reduces material waste and ensures a clean screening environment.

[0015] The combination of the support frame and the blocking plate in the screening mechanism can block the reserved holes during the screening of slag powder. When the device stops running after screening, the blocking plate can be removed. By controlling the extension of the telescopic rod, the blocking plate can be moved to push the large particles remaining on the screen plate from one side of the screen plate to the support frame. This makes it convenient for the user to clean the large particles out of the screening chamber through the support frame, so as to ensure the screening quality of the screen plate. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments 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.

[0017] Figure 1 This is a front sectional perspective view of the present invention;

[0018] Figure 2 This is a first perspective view of the present invention;

[0019] Figure 3 This is a second perspective view of the present invention;

[0020] Figure 4 This is a perspective view of the pulverizing chamber in this utility model;

[0021] Figure 5 This is a first perspective view of the combination of the screening chamber and the retractable protective cover in this utility model;

[0022] Figure 6 This is a second perspective view of the combination of the screening chamber and the retractable protective cover in this utility model;

[0023] Figure 7 This is a perspective view of the assembly of components such as the sieve plate, push plate, and blocking plate in this utility model.

[0024] In the diagram: 1. Crushing mechanism; 2. Screening mechanism; 3. Controller; 11. Crushing chamber; 111. First feed pipe; 112. First discharge pipe; 113. Connecting plate; 114. Convex plate; 115. First connecting shaft; 12. Crushing roller; 13. Gear; 14. First motor; 141. Base; 15. Bracket; 16. Caster wheel; 21. U-shaped plate; 211. Limiting groove; 212. Support leg; 22. Screening chamber; 221. Second feed pipe; 222. Second connecting shaft; 223. Second discharge pipe; 224. Reserved hole; 225. Screen plate; 226. Damping shock absorber; 227. Second motor; 228. Eccentric block; 23. Telescopic protective cover; 24. Push plate; 25. Telescopic rod; 251. Support seat; 26. Support frame; 27. Blocking plate; 271. Handle. Detailed Implementation

[0025] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0026] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The following will refer to the appendix... Figures 1-7 This application will be described in detail with reference to the embodiments.

[0027] An embodiment discloses a slag powder screening device, including a crushing mechanism 1, with a screening mechanism 2 disposed below the crushing mechanism 1. The crushing mechanism 1 includes a crushing chamber 11, inside which are two crushing rollers 12. One end of each crushing roller 12 is connected to a gear 13, and the end of one crushing roller 12 away from the gear 13 is connected to a first motor 14. Supports 15 are connected to both sides of the crushing chamber 11, and two casters 16 are symmetrically connected to the bottom of each of the two supports 15. The screening mechanism 2 includes a U-shaped plate 21. A screening chamber 22 is provided above 1. A plurality of reserved holes 224 are provided on one side of the screening chamber 22. A blocking plate 27 is provided inside the reserved holes 224. A plurality of screen plates 225, the same number as the reserved holes 224, are vertically distributed inside the screening chamber 22. A push plate 24 is provided on the upper end of the plurality of screen plates 225 away from the reserved holes 224. A support frame 26 is connected to the side of the reserved holes 224 away from the push plate 24. The two ends of the side of the support frame 26 away from the screening chamber 22 are detachably connected to the two ends of the side of the blocking plate 27 away from the reserved holes 224.

[0028] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the upper and lower ends of the crushing chamber 11 are respectively provided with a first feed pipe 111 and a first discharge pipe 112, which facilitates the injection of large-particle slag powder raw materials to be crushed into the crushing chamber 11 and the discharge of the crushed materials from the crushing chamber 11. A connecting plate 113 is provided on the outside of the first discharge pipe 112. Two vertically distributed protrusions 114 are provided on one corner of the connecting plate 113. A first connecting shaft 115 is connected to one side of each of the two protrusions 114. The upper and lower ends of the screening chamber 22 are respectively connected with a second feed pipe 221 and a second discharge pipe 223, which facilitates the injection of crushed materials into the screening chamber 22 and the discharge of screened slag powder.

[0029] like Figure 2 , Figure 5 and Figure 6 As shown, the second feed pipe 221 is connected to a second connecting shaft 222 at one corner of the vertical surface parallel to the two protruding plates 114. A retractable protective cover 23 is provided on the outer side of the upper end of the second feed pipe 221. The two ends of the retractable protective cover 23 are detachably connected to two sets of first connecting shafts 115 and second connecting shafts 222 located on the same side, which facilitates the disassembly and maintenance of the retractable protective cover 23. This can prevent the screening chamber 22 from conflicting with the crushing chamber 11 during the vibrating screening process, and prevent the crushed material from flying out from above the opening of the second feed pipe 221 when it falls into the second feed pipe 221, thereby reducing material waste and ensuring a clean screening environment.

[0030] like Figure 1 and Figure 6 As shown, both ends of the two crushing rollers 12 pass through the two side walls of the crushing chamber 11 and are rotatably connected to the side walls of the crushing chamber 11. The teeth of the two gears 13 mesh with each other, which helps to drive the other crushing roller 12 to rotate through the rotation of one crushing roller 12. The outer side of the first motor 14 is connected to the crushing chamber 11 through the base 141, which can provide support for the first motor 14 and facilitate the installation and maintenance of the first motor 14.

[0031] like Figure 1 , Figure 2 and Figure 3As shown, two limiting grooves 211 are symmetrically arranged at one end of the U-shaped plate 21. The two brackets 15 are respectively connected to the two limiting grooves 211 on the side near the bottom of the grooves, which can limit the position of the crushing mechanism 1 and facilitate the alignment of the crushing mechanism 1 and the screening mechanism 2. Two support legs 212 are symmetrically connected on both sides of the lower part of the U-shaped plate 21, which can provide stable support for the components above the U-shaped plate 21 in the screening mechanism 2. A controller 3 is provided on the upper side of the U-shaped plate 21 to facilitate the control of the operation of the first motor 14, the second motor 227 and the telescopic rod 25 in the device.

[0032] like Figure 2 and Figure 3 As shown, a second motor 227 is connected to one side of the screening chamber 22. An eccentric block 228 is connected to the output end of the second motor 227. The second motor 227 can drive the eccentric block 228 to rotate, thereby causing the screening chamber 22 and its connecting parts to vibrate and screen the slag powder. Multiple damping shock absorbers 226 arranged in a linear array are connected to both sides of the lower part of the screening chamber 22. These damping shock absorbers can reduce the vibration amplitude of the screening chamber 22 and the screen plate 225, reduce noise, and improve the stability of the screening mechanism 2. The lower ends of the damping shock absorbers 226 are detachably connected to the U-shaped plate 21, which can provide support for the U-shaped plate 21 from below the damping shock absorbers 226.

[0033] like Figure 1 and Figure 7 As shown, a telescopic rod 25 is connected to the side of the push plate 24 away from the support frame 26. The telescopic end of the telescopic rod 25 passes through the side wall of the screening chamber 22 away from the reserved hole 224, which facilitates the extension and retraction of the telescopic rod 25 to drive the push plate 24 to move, so as to push the large particles remaining on the screen plate 225 from one side of the screen plate 225 to the support frame 26, which is convenient for the user to clean up the large particles and ensure the screening quality of the screen plate 225. A support seat 251 is connected to the outside of the telescopic rod 25. The support seat 251 is connected to the crushing chamber 11, which is convenient for the installation and maintenance of the telescopic rod 25 and the support seat 251. The support frame 26 is connected to the crushing chamber 11, which is convenient for the disassembly and maintenance of the support frame 26. A handle 271 is connected to the side of the block plate 27 away from the push plate 24, which is convenient for the user to pull the block plate 27 during the disassembly and assembly of the block plate 27.

[0034] The slag powder screening device disclosed in this embodiment connects the original receiving device to the second discharge pipe 223 before use. The controller 3 starts the first motor 14 and the second motor 227, causing the first motor 14 to drive one crushing roller 12 to rotate. During rotation, the first crushing roller 12 drives the other crushing roller 12 to rotate in the opposite direction via the gear 13, causing the two crushing rollers 12 to rotate closer to each other. The second motor 227 then drives the eccentric block 228 to rotate, causing the crushing chamber 11 and its connecting components to vibrate, thus crushing the large particles of slag powder raw material that need to be pulverized. The material is injected into the crushing chamber 11 through the first feed pipe 111, crushed by the crushing roller 12, and falls below the crushing roller 12. After passing through the first discharge pipe 112 and the second feed pipe 221, it falls onto the screen plate 225 in the screening chamber 22. After being screened layer by layer by multiple screen plates 225, it is discharged from the second discharge pipe 223 into the original receiving device. During the screening process, the retractable protective cover 23 vibrates synchronously with the vibration of the screening chamber 22, which can effectively prevent the material discharged from the first discharge pipe 112 into the second feed pipe 221 from flying out from the top of the second feed pipe 221, thus reducing material waste.

[0035] After screening is complete, use controller 3 to turn off the first motor 14 and the second motor 227, disconnect the multiple blocking plates 27 and the support frame 26 in sequence, hold the handle 271 and pull the blocking plate 27 towards the end of the support frame 26 away from the reserved hole 224 to pull the blocking plate 27 out of the reserved hole 224. Use controller 3 to control the extension of multiple telescopic rods 25 in sequence, drive the push plate 24 to move on the screen plate 225, push the large particles remaining on the screen plate 225 to the side closer to the support frame 26 through one side of the screen plate 225, so that the user can clean the large particles out of the screening chamber 22 through the support frame 26. After cleaning, use controller 3 to control the telescopic rods 25 to retract, reset the push plate 24, install the blocking plate 27 back into the reserved hole 224, and restore the connection between the blocking plate 27 and the support frame 26.

[0036] When the slag powder material to be screened is of moderate particle size and does not require crushing, disconnect the retractable protective cover 23 from the first connecting shaft 115 and the second connecting shaft 222, remove the retractable protective cover 23 surrounding the upper end of the second feed pipe 221, allow the caster wheel 16 to roll on the ground, separate the bracket 15 from the limiting groove 211, move the crushing mechanism 1 away from the top of the screening mechanism 2, and directly inject the material to be screened into the screening chamber 22 through the second feed pipe 221. Use the controller 3 to start the second motor 227, so that the second motor 227 drives the screening chamber 22 and the screen plate 225 inside it to vibrate through the eccentric block 228, thereby screening the slag powder.

[0037] The components disclosed in this utility model of a slag micro powder screening device, including controller 3, crushing chamber 11, first connecting shaft 115, crushing roller 12, gear 13, first motor 14, bracket 15, caster wheel 16, support leg 212, screening chamber 22, second connecting shaft 222, screen plate 225, damping shock absorber 226, second motor 227, eccentric block 228, retractable protective cover 23, push plate 24, and telescopic rod 25, are all general standard parts or parts known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0038] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A slag fines screening device comprising a crushing mechanism, characterized by, Below the crushing mechanism is a screening mechanism. The crushing mechanism includes a crushing chamber, inside which are two crushing rollers. One end of each crushing roller is connected to a gear, and the end of one crushing roller away from the gear is connected to a first motor. Supports are connected to both sides of the crushing chamber, and two casters are symmetrically connected to the bottom of each of the two supports. The screening mechanism includes a U-shaped plate, above which is a screening chamber. One side of the screening chamber has multiple pre-drilled holes, and a blocking plate is installed inside each pre-drilled hole. Inside the screening chamber are multiple screen plates, the same number as the pre-drilled holes, arranged vertically. Push plates are installed on the top of each screen plate away from the pre-drilled holes. A support frame is connected to the side of the pre-drilled hole away from the push plate. The two ends of the support frame away from the screening chamber are detachably connected to the two ends of the blocking plate away from the pre-drilled holes.

2. The device for screening of slag micro-powder according to claim 1, characterized in that, The crushing chamber is provided with a first feed pipe and a first discharge pipe at its upper and lower ends, respectively. A connecting plate is provided on the outside of the first discharge pipe. Two vertically distributed protrusions are provided on one corner of the connecting plate. A first connecting shaft is connected to one side of each of the two protrusions. The screening chamber is connected with a second feed pipe and a second discharge pipe at its upper and lower ends, respectively.

3. The device for screening of slag micro-powder according to claim 2, characterized in that, The second feed pipe is connected to a second connecting shaft at one corner of the facade parallel to the two convex plates. A retractable protective cover is provided on the outer side of the upper end of the second feed pipe. The two ends of the retractable protective cover are detachably connected to two sets of first and second connecting shafts located on the same side.

4. The device for screening of slag micro-powder according to claim 1, characterized in that, Both ends of the two crushing rollers pass through the two side walls of the crushing chamber and are rotatably connected to the side walls of the crushing chamber. The teeth of the two gears mesh with each other. The outer side of the first motor is connected to the crushing chamber through a base.

5. The device for screening of slag micro-powder according to claim 1, characterized in that, Two limiting grooves are symmetrically arranged at one end of the U-shaped plate. The two brackets are respectively connected to the two limiting grooves on the side near the bottom of the grooves. Two support legs are symmetrically connected on both sides of the lower part of the U-shaped plate. A controller is arranged on the upper side of the U-shaped plate.

6. The device for screening of slag micro-powder according to claim 1, characterized in that, A second motor is connected to one side of the screening chamber, and an eccentric block is connected to the output end of the second motor. Multiple damping shock absorbers arranged in a linear array are connected to both sides of the lower part of the screening chamber, and the lower ends of the damping shock absorbers are detachably connected to the U-shaped plate.

7. The device for screening of slag micro-powder according to claim 1, characterized in that, A telescopic rod is connected to the side of the push plate away from the support frame. The telescopic end of the telescopic rod passes through the side wall of the screening chamber away from the reserved hole. A support base is connected to the outside of the telescopic rod. The support base is connected to the crushing chamber. The support frame is connected to the crushing chamber. A handle is connected to the side of the block plate away from the push plate.

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