Multi-stage screening device for superfine slag powder

Abstract

The utility model relates to a superfine slag powder multistage screening device which comprises a screening box, and a feeding assembly and a dust falling assembly are installed on the back face of the screening box. A mounting frame is welded and mounted on the front face of the screening box, a driving motor is fixedly mounted on the surface of the mounting frame, three rotating rods are rotatably mounted in the screening box, one ends of the two rotating rods extend to the outer side of the screening box, chain wheels are fixedly mounted on the surfaces of the two rotating rods, and the three chain wheels are in transmission connection through a chain. And cams are fixedly mounted on the surfaces of the three rotating rods. According to the multi-stage screening device for the superfine slag powder, the feeding assembly and the screening box are integrally arranged, so that the material conveying path is shortened, and the working efficiency is improved; the controller regulates and controls the driving motor, the feeding motor and the dust falling assembly in a unified mode, automatic operation is achieved, manual intervention is reduced, the dust falling assembly intercepts dust through an air curtain, the operation environment is improved, the collected dust can be recycled, and the environmental protection performance is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of slag micro powder production, specifically to a slag micro powder multistage screening device. BACKGROUND

[0002] The main use of slag micro powder is mixing in cement and adding in commercial concrete, and its utilization mode is different, which can be summarized as three utilization forms: admixture form, mixed material form and main mixing form. The main role is to improve the early strength of cement and concrete and improve the properties of concrete. Therefore, a screening device is used in the processing of slag micro powder to screen it and improve the processing quality.

[0003] At present, the screening device generally adopts split design of feeding system and screening host. The feeding system (such as belt conveyor and bucket elevator) needs to be independently installed outside the screening host, and the two are connected through a hopper or a pipeline, which leads to poor sealing at the joint, and dust is easy to float into the air. Therefore, a slag micro powder multistage screening device is proposed to solve the above problems. UTILITY MODEL

[0004] In view of the deficiencies of the prior art, the utility model provides a slag micro powder multistage screening device, which has the advantages of screening and feeding integration, and solves the problem that the screening device generally adopts split design of feeding system and screening host. The feeding system (such as belt conveyor and bucket elevator) needs to be independently installed outside the screening host, and the two are connected through a hopper or a pipeline, which leads to poor sealing at the joint, and dust is easy to float into the air.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a slag micro powder multistage screening device, comprising a screening box, the back surface of the screening box is provided with a feeding assembly and a dust falling assembly;

[0006] The front surface of the screening box is welded with a mounting bracket, the surface of the mounting bracket is fixedly provided with a driving motor, the inside of the screening box is rotatably provided with three rotating rods, one end of each of the two rotating rods extends to the outside of the screening box and is fixedly provided with a sprocket on the surface, the three sprockets are connected through a chain transmission, the surface of each of the three rotating rods is fixedly provided with a cam, the inside of the screening box is movably provided with three filter plates, and a storage box is placed on the left and right sides of the screening box.

[0007] The feeding assembly comprises a feeding box fixedly installed on the back surface of the screening box, the surface of the feeding box is provided with a feeding port, the top surface of the feeding box is fixedly provided with a feeding motor, the output shaft of the feeding motor is fixedly provided with an auger extending into the feeding box, the surface of the feeding box and close to the screening box is provided with a conveying port, and the rear inner bottom wall of the feeding box is fixedly provided with a flow guide plate.

[0008] Preferably, the dust falling assembly comprises a surface of the feeding box and is fixedly installed with a baffle at the top of the feeding port, a collecting box is fixedly installed at the top of the baffle, a small air compressor is fixedly installed at the top of the feeding box, and a nozzle is fixedly installed on the surface of the baffle and at one side of the feeding port.

[0009] Preferably, the small air compressor is connected with the nozzle and the collecting box through pipelines, respectively.

[0010] Preferably, the feeding box is designed as an L-shaped box body, a through port is formed in the back of the screening box and communicates with the conveying port, and the feeding port, the feeding box, the conveying port and the screening box communicate with each other.

[0011] Preferably, three filter plates are arranged at the top of the cam, two of the filter plates are designed as inclined surfaces, discharge ports are arranged on the left and right sides and the bottom of the screening box, the two filter plates are arranged to extend into the storage box through the discharge ports on the opposite sides, springs are fixedly installed on the inner bottom walls of the discharge ports on the left and right sides, and the top of the two springs is fixedly connected with the bottom surface of the filter plate.

[0012] Preferably, the bottom filter plate is designed as a horizontal surface, movable grooves are formed in the left and right inner walls of the screening box, auxiliary springs are fixedly installed on the inner bottom walls of the two movable grooves, and the left and right sides of the bottom filter plate extend into the movable grooves and are fixedly connected with the top of the auxiliary spring.

[0013] Preferably, the three filter plates are arranged from top to bottom, and the mesh holes of the three filter plates increase from top to bottom.

[0014] Preferably, a controller is fixedly installed on the front of the screening box, and the driving end of the controller is electrically connected with the driving motor, the feeding motor and the small air compressor.

[0015] Compared with the prior art, the technical scheme has the following beneficial effects:

[0016] 1. The multi-stage screening device for slag micro-powder can realize the accurate separation of slag micro-powder with different particle sizes at the same time, and the screening efficiency is significantly improved, by setting three filter plates with mesh holes increasing from top to bottom, cooperating with the vibrating screen driven by the cam, and combining the cam vibration with the spring elasticity to effectively prevent the slag from adhering to the mesh holes, reduce the frequency of manual mesh cleaning, and improve the maintenance convenience.

[0017] 2. The multi-stage screening device for slag powder, through the integrated layout of the feeding assembly and the screening box, shortens the material conveying path and improves work efficiency; the controller uniformly controls the driving motor, the feeding motor and the dust falling assembly, realizes automatic operation, reduces manual intervention, the dust falling assembly intercepts dust through the air curtain, improves the operating environment, the collected dust can be recycled, and the environmental protection performance is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a front perspective view of the multi-stage screening device for slag powder.

[0019] Figure 2 It is a back perspective view of the multi-stage screening device for slag powder.

[0020] Figure 3 It is a front view and sectional view of the screening box structure.

[0021] Figure 4 It is a sectional view of the feeding box structure.

[0022] In the figure: 101, screening box; 102, mounting frame; 103, driving motor; 104, rotating rod; 105, chain wheel; 106, chain; 107, cam; 108, filter plate; 109, storage box; 2, controller; 3, feeding assembly; 301, feeding box; 302, feeding port; 303, feeding motor; 304, auger; 305, conveying port; 306, deflector; 4, dust falling assembly; 401, collection box; 402, small air compressor; 403, nozzle. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0024] Please refer to Figures 1-4 The multi-stage screening device for slag powder in the embodiment comprises a screening box 101, and a feeding assembly 3 and a dust falling assembly 4 are mounted on the back of the screening box 101.

[0025] The front surface of the screening box 101 is welded with a mounting frame 102, the surface of the mounting frame 102 is fixedly installed with a driving motor 103, the inside of the screening box 101 is rotatably installed with three rotating rods 104, one end of each of the two rotating rods 104 extends to the outside of the screening box 101 and is fixedly installed with a chain wheel 105, the three chain wheels 105 are drivingly connected through a chain 106, the surface of each of the three rotating rods 104 is fixedly installed with a cam 107, the inside of the screening box 101 is movably installed with three filter plates 108, and the left and right sides of the screening box 101 are respectively provided with a storage box 109.

[0026] The three filter plates 108 are respectively located at the top of the cams 107, two of the filter plates 108 are designed as inclined surfaces, the left and right sides and the bottom of the screening box 101 are respectively provided with discharge ports, the side, away from each other, of the two filter plates 108 penetrates through the discharge port and extends into the storage box 109, and the inner bottom wall of each of the discharge ports provided on the left and right sides is fixedly installed with a spring, and the top of each of the two springs is fixedly connected with the bottom surface of the filter plate 108.

[0027] The bottom filter plate 108 is designed as a horizontal surface, the left and right inner walls of the screening box 101 are respectively provided with a movable slot, the inner bottom wall of each of the two movable slots is fixedly installed with an auxiliary spring, the left and right sides of the bottom filter plate 108 extend into the movable slots and are fixedly connected with the top of the auxiliary spring, the three filter plates 108 are sequentially installed from top to bottom, and the mesh of the three filter plates 108 sequentially increases from top to bottom.

[0028] In this embodiment, when screening, the slag powder is conveyed into the screening box 101 by the feeding assembly 3, then the driving motor 103 drives the three chain wheels 105 and the rotating rods 104 to rotate through the chain 106, the cams 107 on the rotating rods 104 synchronously rotate, the upper two inclined filter plates 108 vibrate up and down under the action of the cams 107, and the materials are screened through the upper small-mesh filter plate 108 under the vibration, the fine particles fall through the mesh, and the coarse particles fall into the storage box 109 from the two discharge ports along the inclined surfaces; the bottom horizontal filter plate 108 elastically vibrates through the auxiliary spring in the movable slot, and the remaining materials are further screened, and the largest particles are discharged from the bottom discharge port, since the mesh of the three filter plates 108 sequentially increases from top to bottom, the slag powder is multi-stage screened from fine to coarse, and the screened slag powder falls into the storage box 109.

[0029] In this embodiment, the mesh of the three filter plates 108 sequentially increases and cooperates with the vibration of the cam 107, so that the slag powder of different particle sizes can be synchronously separated, secondly, the vibration frequency of the cam 107 cooperates with the elastic action of the spring, so that the slag powder is effectively prevented from adhering to the mesh, the self-cleaning and anti-blocking functions are achieved, and the left and right sides and the bottom discharge ports are directly connected with the storage box 109, so that the manual intervention is reduced and the automatic discharging is realized.

[0030] The feeding assembly 3 comprises a feeding box 301 fixedly installed on the back of the screening box 101, a feeding port 302 is formed on the surface of the feeding box 301, a feeding motor 303 is fixedly installed on the top surface of the feeding box 301, an auger 304 extending into the feeding box 301 is fixedly installed on the output shaft of the feeding motor 303, a conveying port 305 is formed on the surface of the feeding box 301 and close to one side of the screening box 101, and a flow guide plate 306 is fixedly installed on the rear inner bottom wall of the feeding box 301.

[0031] The feeding box 301 is designed in an L-shaped box body, a through port is formed on the back of the screening box 101 and communicates with the conveying port 305, and the feeding port 302, the feeding box 301, the conveying port 305 and the screening box 101 communicate with each other.

[0032] In the embodiment, the slag powder is poured into the feeding box 301 from the feeding port 302, the feeding motor 303 drives the auger 304 to rotate, the material is conveyed from the feeding port 302 to the conveying port 305 through the spiral blade, the flow guide plate 306 guides the material to slide along the rear inner wall of the feeding box 301 to the conveying port 305, so that the material is prevented from being accumulated at the bottom, when the auger 304 rotates, the material is uniformly and continuously conveyed into the screening box 101 through the conveying port 305 under the action of the spiral thrust and the flow guide plate 306, and the feeding function is realized.

[0033] In the embodiment, the feeding assembly 3 arranged on the side of the screening box 101 can realize the integrated design of feeding and screening, and improve the work efficiency.

[0034] The dust falling assembly 4 comprises a partition plate fixedly installed on the surface of the feeding box 301 and located at the top of the feeding port 302, a collecting box 401 fixedly installed on the top of the partition plate, a small air compressor 402 fixedly installed on the top of the feeding box 301, and a nozzle 403 fixedly installed on the surface of the partition plate and located at one side of the feeding port 302.

[0035] The small air compressor 402 is connected with the nozzle 403 and the collecting box 401 through pipelines, respectively.

[0036] In the embodiment, the compressed air generated by the small air compressor 402 forms a high-speed air curtain through the nozzle 403, a 30° inclined barrier is formed above the feeding port 302, and part of the feeding dust is intercepted, so that the dust concentration in the operation area is reduced.

[0037] The controller 2 is fixedly installed on the front of the screening box 101, and the driving end of the controller 2 is electrically connected with the driving motor 103, the feeding motor 303 and the small air compressor 402, respectively.

[0038] In the embodiment, the controller 2 controls the opening and closing of the driving motor 103, the feeding motor 303 and the small air compressor 402.

[0039] In summary, the slag powder multi-stage screening device, by setting three filter plates 108 from top to bottom mesh gradually increasing, with the cam 107 driven vibrating screen, can realize the accurate separation of different particle size slag powder, screening efficiency is improved significantly; Cam 107 vibration and spring elasticity combination, effectively prevent slag adhesion mesh, reduce the frequency of manual screen, improve the convenience of maintenance.

[0040] And, by setting the feeding assembly 3 and screening box 101 integrated layout, shorten the material conveying path, improve work efficiency; Controller 2 unified control drive motor 103, feeding motor 303 and dust fall assembly 4, realize automatic operation, reduce manual intervention, dust fall assembly 4 through the air curtain intercept dust, improve the operating environment, and the collected dust can be recycled, improve environmental performance.

[0041] It should be noted that in this paper, such as first and second relationship terms are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the term "include", "contain" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment. Without more limitations, the element defined by the statement "including a" does not exclude the presence of other identical elements in the process, method, article or equipment including the element.

[0042] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A multi-stage screening device for slag fines, comprising a screening box (101), characterized in that: The back of the screening box (101) is provided with a feeding assembly (3) and a dust falling assembly (4); The front of the screening box (101) is welded with a mounting rack (102), the surface of the mounting rack (102) is fixedly provided with a driving motor (103), the inside of the screening box (101) is rotatably provided with three rotating rods (104), one end of each of the two rotating rods (104) extends to the outside of the screening box (101) and is fixedly provided with a chain wheel (105), the three chain wheels (105) are transmissionally connected through a chain (106), the surface of each of the three rotating rods (104) is fixedly provided with a cam (107), the inside of the screening box (101) is movably provided with three filter plates (108), and the left and right sides of the screening box (101) are both provided with a storage box (109). The feeding assembly (3) comprises a feeding box (301) fixedly arranged on the back of the screening box (101), the surface of the feeding box (301) is provided with a feeding port (302), the top surface of the feeding box (301) is fixedly provided with a feeding motor (303), the output shaft of the feeding motor (303) is fixedly provided with an auger (304) extending into the feeding box (301), the surface of the feeding box (301) and close to one side of the screening box (101) is provided with a conveying port (305), and the rear inner bottom wall of the feeding box (301) is fixedly provided with a flow guide plate (306).

2. The multi-stage screening device for slag powder according to claim 1, characterized in that: The dust falling assembly (4) comprises a partition plate fixedly arranged on the surface of the feeding box (301) and located at the top of the feeding port (302), a collecting box (401) fixedly arranged on the top of the partition plate, a small air compressor (402) fixedly arranged on the top of the feeding box (301), and a nozzle (403) fixedly arranged on the surface of the partition plate and located at one side of the feeding port (302).

3. The multi-stage screening device for slag powder according to claim 2, characterized in that: The small air compressor (402), the nozzle (403) and the collecting box (401) are respectively connected through pipelines.

4. The multi-stage screening device for superfine slag powder according to claim 1, characterized in that: The feeding box (301) is designed in an L-shaped box body, the back of the screening box (101) is provided with a through port communicating with the conveying port (305), and the feeding port (302), the feeding box (301), the conveying port (305) and the screening box (101) communicate with each other.

5. The multi-stage screening device for slag powder according to claim 1, characterized in that: The three filter plates (108) are respectively located at the top of the cams (107), two of the filter plates (108) are designed in a slope, the left and right sides and the bottom of the screening box (101) are respectively provided with discharge ports, the sides, away from each other, of the two filter plates (108) respectively penetrate the discharge ports and extend into the storage box (109), the inner bottom walls of the discharge ports arranged on the left and right sides are both fixedly provided with springs, and the top surfaces of the two springs are both fixedly connected with the bottom surfaces of the filter plates (108).

6. The multi-stage screening device for slag powder according to claim 1, characterized in that: The bottom filter plate (108) is designed in a horizontal surface, the left and right inner walls of the screening box (101) are both provided with movable grooves, the inner bottom walls of the two movable grooves are both fixedly provided with auxiliary springs, and the left and right sides of the bottom filter plate (108) extend into the movable grooves and are fixedly connected with the top surfaces of the auxiliary springs.

7. The multi-stage screening device for slag powder according to claim 1, characterized in that: Three filter plates (108) are installed from top to bottom in order, and the mesh of the three filter plates (108) increases from top to bottom.

8. The multi-stage screening device for slag powder according to claim 1, characterized in that: The front surface of the screening box (101) is fixedly provided with a controller (2), and the driving end of the controller (2) is electrically connected with the driving motor (103), the feeding motor (303) and the small air compressor (402) respectively.

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